diff options
author | emaste <emaste@FreeBSD.org> | 2010-11-13 22:22:18 +0000 |
---|---|---|
committer | emaste <emaste@FreeBSD.org> | 2010-11-13 22:22:18 +0000 |
commit | 62c8289fa15457bfe695213262fc7f1a74998b1a (patch) | |
tree | 7d9c8ef935652d99b24bfb3a071cd78e9bb8d01f /lib/libc_r/uthread | |
parent | 5ca0de0e3fa55d328c60f0ca6f6c0ae18108d0cb (diff) | |
download | FreeBSD-src-62c8289fa15457bfe695213262fc7f1a74998b1a.zip FreeBSD-src-62c8289fa15457bfe695213262fc7f1a74998b1a.tar.gz |
Remove libc_r threading library. It has been disconnected from the build
for four years (since r162846).
Submitted by: Alexander Best arundel@
Diffstat (limited to 'lib/libc_r/uthread')
139 files changed, 0 insertions, 19451 deletions
diff --git a/lib/libc_r/uthread/Makefile.inc b/lib/libc_r/uthread/Makefile.inc deleted file mode 100644 index 6d457c1..0000000 --- a/lib/libc_r/uthread/Makefile.inc +++ /dev/null @@ -1,143 +0,0 @@ -# $FreeBSD$ - -# uthread sources -.PATH: ${.CURDIR}/uthread - -SRCS+= \ - uthread_accept.c \ - uthread_acl_delete_fd.c \ - uthread_acl_get_fd.c \ - uthread_acl_set_fd.c \ - uthread_acl_aclcheck_fd.c \ - uthread_aio_suspend.c \ - uthread_atfork.c \ - uthread_attr_destroy.c \ - uthread_attr_init.c \ - uthread_attr_getdetachstate.c \ - uthread_attr_getguardsize.c \ - uthread_attr_getinheritsched.c \ - uthread_attr_getschedparam.c \ - uthread_attr_getschedpolicy.c \ - uthread_attr_getscope.c \ - uthread_attr_getstack.c \ - uthread_attr_getstackaddr.c \ - uthread_attr_getstacksize.c \ - uthread_attr_get_np.c \ - uthread_attr_setcreatesuspend_np.c \ - uthread_attr_setdetachstate.c \ - uthread_attr_setguardsize.c \ - uthread_attr_setinheritsched.c \ - uthread_attr_setschedparam.c \ - uthread_attr_setschedpolicy.c \ - uthread_attr_setscope.c \ - uthread_attr_setstack.c \ - uthread_attr_setstackaddr.c \ - uthread_attr_setstacksize.c \ - uthread_autoinit.c \ - uthread_bind.c \ - uthread_cancel.c \ - uthread_clean.c \ - uthread_close.c \ - uthread_concurrency.c \ - uthread_cond.c \ - uthread_condattr_destroy.c \ - uthread_condattr_init.c \ - uthread_connect.c \ - uthread_creat.c \ - uthread_create.c \ - uthread_detach.c \ - uthread_dup.c \ - uthread_dup2.c \ - uthread_equal.c \ - uthread_execve.c \ - uthread_exit.c \ - uthread_fchflags.c \ - uthread_fchmod.c \ - uthread_fchown.c \ - uthread_fcntl.c \ - uthread_fd.c \ - uthread_file.c \ - uthread_find_thread.c \ - uthread_flock.c \ - uthread_fork.c \ - uthread_fpathconf.c \ - uthread_fstat.c \ - uthread_fstatfs.c \ - uthread_fsync.c \ - uthread_gc.c \ - uthread_getdirentries.c \ - uthread_getpeername.c \ - uthread_getprio.c \ - uthread_getschedparam.c \ - uthread_getsockname.c \ - uthread_getsockopt.c \ - uthread_info.c \ - uthread_init.c \ - uthread_ioctl.c \ - uthread_jmp.c \ - uthread_join.c \ - uthread_kern.c \ - uthread_kevent.c \ - uthread_kqueue.c \ - uthread_kill.c \ - uthread_listen.c \ - uthread_main_np.c \ - uthread_mattr_init.c \ - uthread_mattr_kind_np.c \ - uthread_msync.c \ - uthread_multi_np.c \ - uthread_mutex.c \ - uthread_mutex_prioceiling.c \ - uthread_mutex_protocol.c \ - uthread_mutexattr_destroy.c \ - uthread_nanosleep.c \ - uthread_once.c \ - uthread_open.c \ - uthread_pause.c \ - uthread_pipe.c \ - uthread_poll.c \ - uthread_priority_queue.c \ - uthread_pselect.c \ - uthread_read.c \ - uthread_readv.c \ - uthread_recvfrom.c \ - uthread_recvmsg.c \ - uthread_resume_np.c \ - uthread_rwlock.c \ - uthread_rwlockattr.c \ - uthread_select.c \ - uthread_self.c \ - uthread_sem.c \ - uthread_sendfile.c \ - uthread_sendmsg.c \ - uthread_sendto.c \ - uthread_seterrno.c \ - uthread_setprio.c \ - uthread_setschedparam.c \ - uthread_setsockopt.c \ - uthread_shutdown.c \ - uthread_sig.c \ - uthread_sigaction.c \ - uthread_sigmask.c \ - uthread_sigpending.c \ - uthread_sigprocmask.c \ - uthread_sigsuspend.c \ - uthread_sigwait.c \ - uthread_single_np.c \ - uthread_sleep.c \ - uthread_socket.c \ - uthread_socketpair.c \ - uthread_spec.c \ - uthread_spinlock.c \ - uthread_stack.c \ - uthread_suspend_np.c \ - uthread_switch_np.c \ - uthread_system.c \ - uthread_tcdrain.c \ - uthread_vfork.c \ - uthread_wait.c \ - uthread_wait4.c \ - uthread_waitpid.c \ - uthread_write.c \ - uthread_writev.c \ - uthread_yield.c diff --git a/lib/libc_r/uthread/pthread_private.h b/lib/libc_r/uthread/pthread_private.h deleted file mode 100644 index 56f7415..0000000 --- a/lib/libc_r/uthread/pthread_private.h +++ /dev/null @@ -1,1411 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * Private thread definitions for the uthread kernel. - * - * $FreeBSD$ - */ - -#ifndef _PTHREAD_PRIVATE_H -#define _PTHREAD_PRIVATE_H - -/* - * Evaluate the storage class specifier. - */ -#ifdef GLOBAL_PTHREAD_PRIVATE -#define SCLASS -#else -#define SCLASS extern -#endif - -/* - * Include files. - */ -#include <setjmp.h> -#include <signal.h> -#include <stdio.h> -#include <sys/param.h> -#include <sys/queue.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/cdefs.h> -#include <sched.h> -#include <spinlock.h> -#include <ucontext.h> -#include <pthread_np.h> -#include <vm/vm.h> -#include <vm/vm_param.h> -#include <vm/pmap.h> -#include <vm/vm_map.h> - -/* - * Define machine dependent macros to get and set the stack pointer - * from the supported contexts. Also define a macro to set the return - * address in a jmp_buf context. - * - * XXX - These need to be moved into architecture dependent support files. - * XXX - These need to be documented so porters know what's required. - */ -#if defined(__i386__) -#define GET_STACK_JB(jb) ((unsigned long)((jb)[0]._jb[2])) -#define GET_STACK_SJB(sjb) ((unsigned long)((sjb)[0]._sjb[2])) -#define GET_STACK_UC(ucp) ((unsigned long)((ucp)->uc_mcontext.mc_esp)) -#define SET_STACK_JB(jb, stk) (jb)[0]._jb[2] = (int)(stk) -#define SET_STACK_SJB(sjb, stk) (sjb)[0]._sjb[2] = (int)(stk) -#define SET_STACK_UC(ucp, stk) (ucp)->uc_mcontext.mc_esp = (int)(stk) -#define FP_SAVE_UC(ucp) do { \ - char *fdata; \ - fdata = (char *) (ucp)->uc_mcontext.mc_fpstate; \ - __asm__("fnsave %0": :"m"(*fdata)); \ -} while (0) -#define FP_RESTORE_UC(ucp) do { \ - char *fdata; \ - fdata = (char *) (ucp)->uc_mcontext.mc_fpstate; \ - __asm__("frstor %0": :"m"(*fdata)); \ -} while (0) -#define SET_RETURN_ADDR_JB(jb, ra) do { \ - (jb)[0]._jb[0] = (int)(ra); \ - (jb)[0]._jb[3] = 0; \ -} while (0) -#elif defined(__amd64__) -#define GET_STACK_JB(jb) ((unsigned long)((jb)[0]._jb[2])) -#define GET_STACK_SJB(sjb) ((unsigned long)((sjb)[0]._sjb[2])) -#define GET_STACK_UC(ucp) ((unsigned long)((ucp)->uc_mcontext.mc_rsp)) -#define SET_STACK_JB(jb, stk) (jb)[0]._jb[2] = (long)(stk) -#define SET_STACK_SJB(sjb, stk) (sjb)[0]._sjb[2] = (long)(stk) -#define SET_STACK_UC(ucp, stk) (ucp)->uc_mcontext.mc_rsp = (long)(stk) -#define FP_SAVE_UC(ucp) do { \ - char *fdata; \ - fdata = (char *) (ucp)->uc_mcontext.mc_fpstate; \ - __asm__("fxsave %0": :"m"(*fdata)); \ -} while (0) -#define FP_RESTORE_UC(ucp) do { \ - char *fdata; \ - fdata = (char *) (ucp)->uc_mcontext.mc_fpstate; \ - __asm__("fxrstor %0": :"m"(*fdata)); \ -} while (0) -#define SET_RETURN_ADDR_JB(jb, ra) (jb)[0]._jb[0] = (long)(ra) -#elif defined(__alpha__) -#include <machine/reg.h> -#define GET_STACK_JB(jb) ((unsigned long)((jb)[0]._jb[R_SP + 4])) -#define GET_STACK_SJB(sjb) ((unsigned long)((sjb)[0]._sjb[R_SP + 4])) -#define GET_STACK_UC(ucp) ((ucp)->uc_mcontext.mc_regs[R_SP]) -#define SET_STACK_JB(jb, stk) (jb)[0]._jb[R_SP + 4] = (long)(stk) -#define SET_STACK_SJB(sjb, stk) (sjb)[0]._sjb[R_SP + 4] = (long)(stk) -#define SET_STACK_UC(ucp, stk) (ucp)->uc_mcontext.mc_regs[R_SP] = (unsigned long)(stk) -#define FP_SAVE_UC(ucp) -#define FP_RESTORE_UC(ucp) -#define SET_RETURN_ADDR_JB(jb, ra) do { \ - (jb)[0]._jb[2] = (long)(ra); \ - (jb)[0]._jb[R_RA + 4] = (long)(ra); \ - (jb)[0]._jb[R_T12 + 4] = (long)(ra); \ -} while (0) -#elif defined(__ia64__) -#define GET_BSP_JB(jb) (*((unsigned long*)JMPBUF_ADDR_OF(jb,J_BSP))) -#define GET_STACK_JB(jb) (*((unsigned long*)JMPBUF_ADDR_OF(jb,J_SP))) -#define GET_STACK_SJB(sjb) GET_STACK_JB(sjb) -#define SET_RETURN_ADDR_JB(jb, ra) \ -do { \ - *((unsigned long*)JMPBUF_ADDR_OF(jb,J_B0)) = ((long*)(ra))[0]; \ - *((unsigned long*)JMPBUF_ADDR_OF(jb,J_GP)) = ((long*)(ra))[1]; \ - *((unsigned long*)JMPBUF_ADDR_OF(jb,J_PFS)) &= ~0x1FFFFFFFFFUL; \ -} while (0) -#define SET_STACK_JB(jb, stk, sz) \ -do { \ - UPD_STACK_JB(jb, stk + sz - 16); \ - GET_BSP_JB(jb) = (long)(stk); \ -} while (0) -#define UPD_STACK_JB(jb, stk) GET_STACK_JB(jb) = (long)(stk) -#elif defined(__sparc64__) -#include <machine/frame.h> - -#define CCFSZ sizeof (struct frame) - -#define GET_STACK_JB(jb) \ - ((unsigned long)((jb)[0]._jb[_JB_SP]) + SPOFF) -#define GET_STACK_SJB(sjb) \ - ((unsigned long)((sjb)[0]._sjb[_JB_SP]) + SPOFF) -#define GET_STACK_UC(ucp) \ - ((ucp)->uc_mcontext.mc_sp + SPOFF) -/* - * XXX: sparc64 _longjmp() expects a register window on the stack - * at the given position, so we must make sure that the space where - * it is expected is readable. Subtracting the frame size here works - * because the SET_STACK macros are only used to set up new stacks - * or signal stacks, but it is a bit dirty. - */ -#define SET_STACK_JB(jb, stk) \ - (jb)[0]._jb[_JB_SP] = (long)(stk) - SPOFF - CCFSZ -#define SET_STACK_SJB(sjb, stk) \ - (sjb)[0]._sjb[_JB_SP] = (long)(stk) - SPOFF - CCFSZ -#define SET_STACK_UC(ucp, stk) \ - (ucp)->uc_mcontext.mc_sp = (unsigned long)(stk) - SPOFF - CCFSZ -#define FP_SAVE_UC(ucp) /* XXX */ -#define FP_RESTORE_UC(ucp) /* XXX */ -#define SET_RETURN_ADDR_JB(jb, ra) \ - (jb)[0]._jb[_JB_PC] = (long)(ra) - 8 -#else -#error "Don't recognize this architecture!" -#endif - -/* - * Kernel fatal error handler macro. - */ -#define PANIC(string) _thread_exit(__FILE__,__LINE__,string) - - -/* Output debug messages like this: */ -#define stdout_debug(args...) do { \ - char buf[128]; \ - snprintf(buf, sizeof(buf), ##args); \ - __sys_write(1, buf, strlen(buf)); \ -} while (0) -#define stderr_debug(args...) do { \ - char buf[128]; \ - snprintf(buf, sizeof(buf), ##args); \ - __sys_write(2, buf, strlen(buf)); \ -} while (0) - - - -/* - * Priority queue manipulation macros (using pqe link): - */ -#define PTHREAD_PRIOQ_INSERT_HEAD(thrd) _pq_insert_head(&_readyq,thrd) -#define PTHREAD_PRIOQ_INSERT_TAIL(thrd) _pq_insert_tail(&_readyq,thrd) -#define PTHREAD_PRIOQ_REMOVE(thrd) _pq_remove(&_readyq,thrd) -#define PTHREAD_PRIOQ_FIRST() _pq_first(&_readyq) - -/* - * Waiting queue manipulation macros (using pqe link): - */ -#define PTHREAD_WAITQ_REMOVE(thrd) _waitq_remove(thrd) -#define PTHREAD_WAITQ_INSERT(thrd) _waitq_insert(thrd) - -#if defined(_PTHREADS_INVARIANTS) -#define PTHREAD_WAITQ_CLEARACTIVE() _waitq_clearactive() -#define PTHREAD_WAITQ_SETACTIVE() _waitq_setactive() -#else -#define PTHREAD_WAITQ_CLEARACTIVE() -#define PTHREAD_WAITQ_SETACTIVE() -#endif - -/* - * Work queue manipulation macros (using qe link): - */ -#define PTHREAD_WORKQ_INSERT(thrd) do { \ - TAILQ_INSERT_TAIL(&_workq,thrd,qe); \ - (thrd)->flags |= PTHREAD_FLAGS_IN_WORKQ; \ -} while (0) -#define PTHREAD_WORKQ_REMOVE(thrd) do { \ - TAILQ_REMOVE(&_workq,thrd,qe); \ - (thrd)->flags &= ~PTHREAD_FLAGS_IN_WORKQ; \ -} while (0) - - -/* - * State change macro without scheduling queue change: - */ -#define PTHREAD_SET_STATE(thrd, newstate) do { \ - (thrd)->state = newstate; \ - (thrd)->fname = __FILE__; \ - (thrd)->lineno = __LINE__; \ -} while (0) - -/* - * State change macro with scheduling queue change - This must be - * called with preemption deferred (see thread_kern_sched_[un]defer). - */ -#if defined(_PTHREADS_INVARIANTS) -#include <assert.h> -#define PTHREAD_ASSERT(cond, msg) do { \ - if (!(cond)) \ - PANIC(msg); \ -} while (0) -#define PTHREAD_ASSERT_NOT_IN_SYNCQ(thrd) \ - PTHREAD_ASSERT((((thrd)->flags & PTHREAD_FLAGS_IN_SYNCQ) == 0), \ - "Illegal call from signal handler"); -#define PTHREAD_NEW_STATE(thrd, newstate) do { \ - if (_thread_kern_new_state != 0) \ - PANIC("Recursive PTHREAD_NEW_STATE"); \ - _thread_kern_new_state = 1; \ - if ((thrd)->state != newstate) { \ - if ((thrd)->state == PS_RUNNING) { \ - PTHREAD_PRIOQ_REMOVE(thrd); \ - PTHREAD_SET_STATE(thrd, newstate); \ - PTHREAD_WAITQ_INSERT(thrd); \ - } else if (newstate == PS_RUNNING) { \ - PTHREAD_WAITQ_REMOVE(thrd); \ - PTHREAD_SET_STATE(thrd, newstate); \ - PTHREAD_PRIOQ_INSERT_TAIL(thrd); \ - } \ - } \ - _thread_kern_new_state = 0; \ -} while (0) -#else -#define PTHREAD_ASSERT(cond, msg) -#define PTHREAD_ASSERT_NOT_IN_SYNCQ(thrd) -#define PTHREAD_NEW_STATE(thrd, newstate) do { \ - if ((thrd)->state != newstate) { \ - if ((thrd)->state == PS_RUNNING) { \ - PTHREAD_PRIOQ_REMOVE(thrd); \ - PTHREAD_WAITQ_INSERT(thrd); \ - } else if (newstate == PS_RUNNING) { \ - PTHREAD_WAITQ_REMOVE(thrd); \ - PTHREAD_PRIOQ_INSERT_TAIL(thrd); \ - } \ - } \ - PTHREAD_SET_STATE(thrd, newstate); \ -} while (0) -#endif - -/* - * Define the signals to be used for scheduling. - */ -#if defined(_PTHREADS_COMPAT_SCHED) -#define _ITIMER_SCHED_TIMER ITIMER_VIRTUAL -#define _SCHED_SIGNAL SIGVTALRM -#else -#define _ITIMER_SCHED_TIMER ITIMER_PROF -#define _SCHED_SIGNAL SIGPROF -#endif - -/* - * Priority queues. - * - * XXX It'd be nice if these were contained in uthread_priority_queue.[ch]. - */ -typedef struct pq_list { - TAILQ_HEAD(, pthread) pl_head; /* list of threads at this priority */ - TAILQ_ENTRY(pq_list) pl_link; /* link for queue of priority lists */ - int pl_prio; /* the priority of this list */ - int pl_queued; /* is this in the priority queue */ -} pq_list_t; - -typedef struct pq_queue { - TAILQ_HEAD(, pq_list) pq_queue; /* queue of priority lists */ - pq_list_t *pq_lists; /* array of all priority lists */ - int pq_size; /* number of priority lists */ -} pq_queue_t; - - -/* - * TailQ initialization values. - */ -#define TAILQ_INITIALIZER { NULL, NULL } - -/* - * Mutex definitions. - */ -union pthread_mutex_data { - void *m_ptr; - int m_count; -}; - -struct pthread_mutex { - enum pthread_mutextype m_type; - int m_protocol; - TAILQ_HEAD(mutex_head, pthread) m_queue; - struct pthread *m_owner; - union pthread_mutex_data m_data; - long m_flags; - int m_refcount; - - /* - * Used for priority inheritence and protection. - * - * m_prio - For priority inheritence, the highest active - * priority (threads locking the mutex inherit - * this priority). For priority protection, the - * ceiling priority of this mutex. - * m_saved_prio - mutex owners inherited priority before - * taking the mutex, restored when the owner - * unlocks the mutex. - */ - int m_prio; - int m_saved_prio; - - /* - * Link for list of all mutexes a thread currently owns. - */ - TAILQ_ENTRY(pthread_mutex) m_qe; - - /* - * Lock for accesses to this structure. - */ - spinlock_t lock; -}; - -/* - * Flags for mutexes. - */ -#define MUTEX_FLAGS_PRIVATE 0x01 -#define MUTEX_FLAGS_INITED 0x02 -#define MUTEX_FLAGS_BUSY 0x04 - -/* - * Static mutex initialization values. - */ -#define PTHREAD_MUTEX_STATIC_INITIALIZER \ - { PTHREAD_MUTEX_DEFAULT, PTHREAD_PRIO_NONE, TAILQ_INITIALIZER, \ - NULL, { NULL }, MUTEX_FLAGS_PRIVATE, 0, 0, 0, TAILQ_INITIALIZER, \ - _SPINLOCK_INITIALIZER } - -struct pthread_mutex_attr { - enum pthread_mutextype m_type; - int m_protocol; - int m_ceiling; - long m_flags; -}; - -#define PTHREAD_MUTEXATTR_STATIC_INITIALIZER \ - { PTHREAD_MUTEX_DEFAULT, PTHREAD_PRIO_NONE, 0, MUTEX_FLAGS_PRIVATE } - -/* - * Condition variable definitions. - */ -enum pthread_cond_type { - COND_TYPE_FAST, - COND_TYPE_MAX -}; - -struct pthread_cond { - enum pthread_cond_type c_type; - TAILQ_HEAD(cond_head, pthread) c_queue; - pthread_mutex_t c_mutex; - void *c_data; - long c_flags; - int c_seqno; - - /* - * Lock for accesses to this structure. - */ - spinlock_t lock; -}; - -struct pthread_cond_attr { - enum pthread_cond_type c_type; - long c_flags; -}; - -/* - * Flags for condition variables. - */ -#define COND_FLAGS_PRIVATE 0x01 -#define COND_FLAGS_INITED 0x02 -#define COND_FLAGS_BUSY 0x04 - -/* - * Static cond initialization values. - */ -#define PTHREAD_COND_STATIC_INITIALIZER \ - { COND_TYPE_FAST, TAILQ_INITIALIZER, NULL, NULL, \ - 0, 0, _SPINLOCK_INITIALIZER } - -/* - * Semaphore definitions. - */ -struct sem { -#define SEM_MAGIC ((u_int32_t) 0x09fa4012) - u_int32_t magic; - pthread_mutex_t lock; - pthread_cond_t gtzero; - u_int32_t count; - u_int32_t nwaiters; -}; - -/* - * Cleanup definitions. - */ -struct pthread_cleanup { - struct pthread_cleanup *next; - void (*routine) (); - void *routine_arg; -}; - -struct pthread_atfork { - TAILQ_ENTRY(pthread_atfork) qe; - void (*prepare)(void); - void (*parent)(void); - void (*child)(void); -}; - -struct pthread_attr { - int sched_policy; - int sched_inherit; - int sched_interval; - int prio; - int suspend; - int flags; - void *arg_attr; - void (*cleanup_attr) (); - void *stackaddr_attr; - size_t stacksize_attr; - size_t guardsize_attr; -}; - -/* - * Thread creation state attributes. - */ -#define PTHREAD_CREATE_RUNNING 0 -#define PTHREAD_CREATE_SUSPENDED 1 - -/* - * Miscellaneous definitions. - */ -#define PTHREAD_STACK32_DEFAULT (1 * 1024 * 1024) -#define PTHREAD_STACK64_DEFAULT (2 * 1024 * 1024) - -/* - * Size of default red zone at the end of each stack. In actuality, this "red - * zone" is merely an unmapped region, except in the case of the initial stack. - * Since mmap() makes it possible to specify the maximum growth of a MAP_STACK - * region, an unmapped gap between thread stacks achieves the same effect as - * explicitly mapped red zones. - * This is declared and initialized in uthread_init.c. - */ -extern int _pthread_guard_default; - -extern int _pthread_page_size; - -extern int _pthread_stack_default; - -extern int _pthread_stack_initial; - -/* - * Maximum size of initial thread's stack. This perhaps deserves to be larger - * than the stacks of other threads, since many applications are likely to run - * almost entirely on this stack. - */ -#define PTHREAD_STACK32_INITIAL (2 * 1024 * 1024) -#define PTHREAD_STACK64_INITIAL (4 * 1024 * 1024) - -/* - * Define the different priority ranges. All applications have thread - * priorities constrained within 0-31. The threads library raises the - * priority when delivering signals in order to ensure that signal - * delivery happens (from the POSIX spec) "as soon as possible". - * In the future, the threads library will also be able to map specific - * threads into real-time (cooperating) processes or kernel threads. - * The RT and SIGNAL priorities will be used internally and added to - * thread base priorities so that the scheduling queue can handle both - * normal and RT priority threads with and without signal handling. - * - * The approach taken is that, within each class, signal delivery - * always has priority over thread execution. - */ -#define PTHREAD_DEFAULT_PRIORITY 15 -#define PTHREAD_MIN_PRIORITY 0 -#define PTHREAD_MAX_PRIORITY 31 /* 0x1F */ -#define PTHREAD_SIGNAL_PRIORITY 32 /* 0x20 */ -#define PTHREAD_RT_PRIORITY 64 /* 0x40 */ -#define PTHREAD_FIRST_PRIORITY PTHREAD_MIN_PRIORITY -#define PTHREAD_LAST_PRIORITY \ - (PTHREAD_MAX_PRIORITY + PTHREAD_SIGNAL_PRIORITY + PTHREAD_RT_PRIORITY) -#define PTHREAD_BASE_PRIORITY(prio) ((prio) & PTHREAD_MAX_PRIORITY) - -/* - * Clock resolution in microseconds. - */ -#define CLOCK_RES_USEC 10000 -#define CLOCK_RES_USEC_MIN 1000 - -/* - * Time slice period in microseconds. - */ -#define TIMESLICE_USEC 20000 - -/* - * Define a thread-safe macro to get the current time of day - * which is updated at regular intervals by the scheduling signal - * handler. - */ -#define GET_CURRENT_TOD(tv) \ - do { \ - tv.tv_sec = _sched_tod.tv_sec; \ - tv.tv_usec = _sched_tod.tv_usec; \ - } while (tv.tv_sec != _sched_tod.tv_sec) - - -struct pthread_rwlockattr { - int pshared; -}; - -struct pthread_rwlock { - pthread_mutex_t lock; /* monitor lock */ - int state; /* 0 = idle >0 = # of readers -1 = writer */ - pthread_cond_t read_signal; - pthread_cond_t write_signal; - int blocked_writers; -}; - -/* - * Thread states. - */ -enum pthread_state { - PS_RUNNING, - PS_SIGTHREAD, - PS_MUTEX_WAIT, - PS_COND_WAIT, - PS_FDLR_WAIT, - PS_FDLW_WAIT, - PS_FDR_WAIT, - PS_FDW_WAIT, - PS_FILE_WAIT, - PS_POLL_WAIT, - PS_SELECT_WAIT, - PS_SLEEP_WAIT, - PS_WAIT_WAIT, - PS_SIGSUSPEND, - PS_SIGWAIT, - PS_SPINBLOCK, - PS_JOIN, - PS_SUSPENDED, - PS_DEAD, - PS_DEADLOCK, - PS_STATE_MAX -}; - - -/* - * File descriptor locking definitions. - */ -#define FD_READ 0x1 -#define FD_WRITE 0x2 -#define FD_RDWR (FD_READ | FD_WRITE) - -/* - * File descriptor table structure. - */ -struct fd_table_entry { - /* - * Lock for accesses to this file descriptor table - * entry. This is passed to _spinlock() to provide atomic - * access to this structure. It does *not* represent the - * state of the lock on the file descriptor. - */ - spinlock_t lock; - TAILQ_HEAD(, pthread) r_queue; /* Read queue. */ - TAILQ_HEAD(, pthread) w_queue; /* Write queue. */ - struct pthread *r_owner; /* Ptr to thread owning read lock. */ - struct pthread *w_owner; /* Ptr to thread owning write lock. */ - char *r_fname; /* Ptr to read lock source file name */ - int r_lineno; /* Read lock source line number. */ - char *w_fname; /* Ptr to write lock source file name */ - int w_lineno; /* Write lock source line number. */ - int r_lockcount; /* Count for FILE read locks. */ - int w_lockcount; /* Count for FILE write locks. */ - int flags; /* Flags used in open. */ -}; - -struct pthread_poll_data { - int nfds; - struct pollfd *fds; -}; - -union pthread_wait_data { - pthread_mutex_t mutex; - pthread_cond_t cond; - const sigset_t *sigwait; /* Waiting on a signal in sigwait */ - struct { - short fd; /* Used when thread waiting on fd */ - short branch; /* Line number, for debugging. */ - char *fname; /* Source file name for debugging.*/ - } fd; - FILE *fp; - struct pthread_poll_data *poll_data; - spinlock_t *spinlock; - struct pthread *thread; -}; - -/* - * Define a continuation routine that can be used to perform a - * transfer of control: - */ -typedef void (*thread_continuation_t) (void *); - -struct pthread_signal_frame; - -struct pthread_state_data { - struct pthread_signal_frame *psd_curframe; - sigset_t psd_sigmask; - struct timespec psd_wakeup_time; - union pthread_wait_data psd_wait_data; - enum pthread_state psd_state; - int psd_flags; - int psd_interrupted; - int psd_longjmp_val; - int psd_sigmask_seqno; - int psd_signo; - int psd_sig_defer_count; - /* XXX - What about thread->timeout and/or thread->error? */ -}; - -struct join_status { - struct pthread *thread; - void *ret; - int error; -}; - -/* - * The frame that is added to the top of a threads stack when setting up - * up the thread to run a signal handler. - */ -struct pthread_signal_frame { - /* - * This stores the threads state before the signal. - */ - struct pthread_state_data saved_state; - - /* - * Threads return context; we use only jmp_buf's for now. - */ - union { - jmp_buf jb; - ucontext_t uc; - } ctx; - int signo; /* signal, arg 1 to sighandler */ - int sig_has_args; /* use signal args if true */ - ucontext_t uc; - siginfo_t siginfo; -}; - -struct pthread_specific_elem { - const void *data; - int seqno; -}; - -/* - * Thread structure. - */ -struct pthread { - /* - * Magic value to help recognize a valid thread structure - * from an invalid one: - */ -#define PTHREAD_MAGIC ((u_int32_t) 0xd09ba115) - u_int32_t magic; - char *name; - u_int64_t uniqueid; /* for gdb */ - - /* - * Lock for accesses to this thread structure. - */ - spinlock_t lock; - - /* Queue entry for list of all threads: */ - TAILQ_ENTRY(pthread) tle; - - /* Queue entry for list of dead threads: */ - TAILQ_ENTRY(pthread) dle; - - /* - * Thread start routine, argument, stack pointer and thread - * attributes. - */ - void *(*start_routine)(void *); - void *arg; - void *stack; - struct pthread_attr attr; - - /* - * Threads return context; we use only jmp_buf's for now. - */ - union { - jmp_buf jb; - ucontext_t uc; - } ctx; - - /* - * Used for tracking delivery of signal handlers. - */ - struct pthread_signal_frame *curframe; - - /* - * Cancelability flags - the lower 2 bits are used by cancel - * definitions in pthread.h - */ -#define PTHREAD_AT_CANCEL_POINT 0x0004 -#define PTHREAD_CANCELLING 0x0008 -#define PTHREAD_CANCEL_NEEDED 0x0010 - int cancelflags; - - thread_continuation_t continuation; - - /* - * Current signal mask and pending signals. - */ - sigset_t sigmask; - sigset_t sigpend; - int sigmask_seqno; - int check_pending; - - /* Thread state: */ - enum pthread_state state; - - /* Scheduling clock when this thread was last made active. */ - long last_active; - - /* Scheduling clock when this thread was last made inactive. */ - long last_inactive; - - /* - * Number of microseconds accumulated by this thread when - * time slicing is active. - */ - long slice_usec; - - /* - * Time to wake up thread. This is used for sleeping threads and - * for any operation which may time out (such as select). - */ - struct timespec wakeup_time; - - /* TRUE if operation has timed out. */ - int timeout; - - /* - * Error variable used instead of errno. The function __error() - * returns a pointer to this. - */ - int error; - - /* - * The joiner is the thread that is joining to this thread. The - * join status keeps track of a join operation to another thread. - */ - struct pthread *joiner; - struct join_status join_status; - - /* - * The current thread can belong to only one scheduling queue at - * a time (ready or waiting queue). It can also belong to: - * - * o A queue of threads waiting for a mutex - * o A queue of threads waiting for a condition variable - * o A queue of threads waiting for a file descriptor lock - * o A queue of threads needing work done by the kernel thread - * (waiting for a spinlock or file I/O) - * - * A thread can also be joining a thread (the joiner field above). - * - * It must not be possible for a thread to belong to any of the - * above queues while it is handling a signal. Signal handlers - * may longjmp back to previous stack frames circumventing normal - * control flow. This could corrupt queue integrity if the thread - * retains membership in the queue. Therefore, if a thread is a - * member of one of these queues when a signal handler is invoked, - * it must remove itself from the queue before calling the signal - * handler and reinsert itself after normal return of the handler. - * - * Use pqe for the scheduling queue link (both ready and waiting), - * sqe for synchronization (mutex and condition variable) queue - * links, and qe for all other links. - */ - TAILQ_ENTRY(pthread) pqe; /* priority queue link */ - TAILQ_ENTRY(pthread) sqe; /* synchronization queue link */ - TAILQ_ENTRY(pthread) qe; /* all other queues link */ - - /* Wait data. */ - union pthread_wait_data data; - - /* - * Allocated for converting select into poll. - */ - struct pthread_poll_data poll_data; - - /* - * Set to TRUE if a blocking operation was - * interrupted by a signal: - */ - int interrupted; - - /* Signal number when in state PS_SIGWAIT: */ - int signo; - - /* - * Set to non-zero when this thread has deferred signals. - * We allow for recursive deferral. - */ - int sig_defer_count; - - /* - * Set to TRUE if this thread should yield after undeferring - * signals. - */ - int yield_on_sig_undefer; - - /* Miscellaneous flags; only set with signals deferred. */ - int flags; -#define PTHREAD_FLAGS_PRIVATE 0x0001 -#define PTHREAD_EXITING 0x0002 -#define PTHREAD_FLAGS_IN_WAITQ 0x0004 /* in waiting queue using pqe link */ -#define PTHREAD_FLAGS_IN_PRIOQ 0x0008 /* in priority queue using pqe link */ -#define PTHREAD_FLAGS_IN_WORKQ 0x0010 /* in work queue using qe link */ -#define PTHREAD_FLAGS_IN_FILEQ 0x0020 /* in file lock queue using qe link */ -#define PTHREAD_FLAGS_IN_FDQ 0x0040 /* in fd lock queue using qe link */ -#define PTHREAD_FLAGS_IN_CONDQ 0x0080 /* in condition queue using sqe link*/ -#define PTHREAD_FLAGS_IN_MUTEXQ 0x0100 /* in mutex queue using sqe link */ -#define PTHREAD_FLAGS_SUSPENDED 0x0200 /* thread is suspended */ -#define PTHREAD_FLAGS_TRACE 0x0400 /* for debugging purposes */ -#define PTHREAD_FLAGS_IN_SYNCQ \ - (PTHREAD_FLAGS_IN_CONDQ | PTHREAD_FLAGS_IN_MUTEXQ) - - /* - * Base priority is the user setable and retrievable priority - * of the thread. It is only affected by explicit calls to - * set thread priority and upon thread creation via a thread - * attribute or default priority. - */ - char base_priority; - - /* - * Inherited priority is the priority a thread inherits by - * taking a priority inheritence or protection mutex. It - * is not affected by base priority changes. Inherited - * priority defaults to and remains 0 until a mutex is taken - * that is being waited on by any other thread whose priority - * is non-zero. - */ - char inherited_priority; - - /* - * Active priority is always the maximum of the threads base - * priority and inherited priority. When there is a change - * in either the base or inherited priority, the active - * priority must be recalculated. - */ - char active_priority; - - /* Number of priority ceiling or protection mutexes owned. */ - int priority_mutex_count; - - /* Number rwlocks rdlocks held. */ - int rdlock_count; - - /* - * Queue of currently owned mutexes. - */ - TAILQ_HEAD(, pthread_mutex) mutexq; - - void *ret; - struct pthread_specific_elem *specific; - int specific_data_count; - - /* Cleanup handlers Link List */ - struct pthread_cleanup *cleanup; - char *fname; /* Ptr to source file name */ - int lineno; /* Source line number. */ -}; - -/* - * Global variables for the uthread kernel. - */ - -SCLASS void *_usrstack -#ifdef GLOBAL_PTHREAD_PRIVATE -= (void *) USRSTACK; -#else -; -#endif - -/* Kernel thread structure used when there are no running threads: */ -SCLASS struct pthread _thread_kern_thread; - -/* Ptr to the thread structure for the running thread: */ -SCLASS struct pthread * volatile _thread_run -#ifdef GLOBAL_PTHREAD_PRIVATE -= &_thread_kern_thread; -#else -; -#endif - -/* Ptr to the thread structure for the last user thread to run: */ -SCLASS struct pthread * volatile _last_user_thread -#ifdef GLOBAL_PTHREAD_PRIVATE -= &_thread_kern_thread; -#else -; -#endif - -/* List of all threads: */ -SCLASS TAILQ_HEAD(, pthread) _thread_list -#ifdef GLOBAL_PTHREAD_PRIVATE -= TAILQ_HEAD_INITIALIZER(_thread_list); -#else -; -#endif - -/* - * Array of kernel pipe file descriptors that are used to ensure that - * no signals are missed in calls to _select. - */ -SCLASS int _thread_kern_pipe[2] -#ifdef GLOBAL_PTHREAD_PRIVATE -= { - -1, - -1 -}; -#else -; -#endif -SCLASS int volatile _queue_signals -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0; -#else -; -#endif -SCLASS int _thread_kern_in_sched -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0; -#else -; -#endif - -SCLASS int _sig_in_handler -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0; -#else -; -#endif - -/* Time of day at last scheduling timer signal: */ -SCLASS struct timeval volatile _sched_tod -#ifdef GLOBAL_PTHREAD_PRIVATE -= { 0, 0 }; -#else -; -#endif - -/* - * Current scheduling timer ticks; used as resource usage. - */ -SCLASS unsigned int volatile _sched_ticks -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0; -#else -; -#endif - -/* Dead threads: */ -SCLASS TAILQ_HEAD(, pthread) _dead_list -#ifdef GLOBAL_PTHREAD_PRIVATE -= TAILQ_HEAD_INITIALIZER(_dead_list); -#else -; -#endif - -/* Initial thread: */ -SCLASS struct pthread *_thread_initial -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL; -#else -; -#endif - -SCLASS TAILQ_HEAD(atfork_head, pthread_atfork) _atfork_list; -SCLASS pthread_mutex_t _atfork_mutex; - -/* Default thread attributes: */ -SCLASS struct pthread_attr _pthread_attr_default -#ifdef GLOBAL_PTHREAD_PRIVATE -= { SCHED_RR, 0, TIMESLICE_USEC, PTHREAD_DEFAULT_PRIORITY, - PTHREAD_CREATE_RUNNING, PTHREAD_CREATE_JOINABLE, NULL, NULL, NULL, - -1, -1 }; -#else -; -#endif - -/* Default mutex attributes: */ -#define PTHREAD_MUTEXATTR_DEFAULT \ - { PTHREAD_MUTEX_DEFAULT, PTHREAD_PRIO_NONE, 0, 0 } - -/* Default condition variable attributes: */ -#define PTHREAD_CONDATTR_DEFAULT { COND_TYPE_FAST, 0 } - -/* - * Standard I/O file descriptors need special flag treatment since - * setting one to non-blocking does all on *BSD. Sigh. This array - * is used to store the initial flag settings. - */ -SCLASS int _pthread_stdio_flags[3]; - -/* File table information: */ -SCLASS struct fd_table_entry **_thread_fd_table -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL; -#else -; -#endif - -/* Table for polling file descriptors: */ -SCLASS struct pollfd *_thread_pfd_table -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL; -#else -; -#endif - -SCLASS const int dtablecount -#ifdef GLOBAL_PTHREAD_PRIVATE -= 4096/sizeof(struct fd_table_entry); -#else -; -#endif -SCLASS int _thread_dtablesize /* Descriptor table size. */ -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0; -#else -; -#endif - -SCLASS int _clock_res_usec /* Clock resolution in usec. */ -#ifdef GLOBAL_PTHREAD_PRIVATE -= CLOCK_RES_USEC; -#else -; -#endif - -/* Garbage collector mutex and condition variable. */ -SCLASS pthread_mutex_t _gc_mutex -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL -#endif -; -SCLASS pthread_cond_t _gc_cond -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL -#endif -; - -/* - * Array of signal actions for this process. - */ -SCLASS struct sigaction _thread_sigact[NSIG]; - -/* - * Array of counts of dummy handlers for SIG_DFL signals. This is used to - * assure that there is always a dummy signal handler installed while there is a - * thread sigwait()ing on the corresponding signal. - */ -SCLASS int _thread_dfl_count[NSIG]; - -/* - * Pending signals and mask for this process: - */ -SCLASS sigset_t _process_sigpending; -SCLASS sigset_t _process_sigmask -#ifdef GLOBAL_PTHREAD_PRIVATE -= { {0, 0, 0, 0} } -#endif -; - -/* - * Scheduling queues: - */ -SCLASS pq_queue_t _readyq; -SCLASS TAILQ_HEAD(, pthread) _waitingq; - -/* - * Work queue: - */ -SCLASS TAILQ_HEAD(, pthread) _workq; - -/* Tracks the number of threads blocked while waiting for a spinlock. */ -SCLASS volatile int _spinblock_count -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0 -#endif -; - -/* Used to maintain pending and active signals: */ -struct sigstatus { - int pending; /* Is this a pending signal? */ - int blocked; /* - * A handler is currently active for - * this signal; ignore subsequent - * signals until the handler is done. - */ - int signo; /* arg 1 to signal handler */ - siginfo_t siginfo; /* arg 2 to signal handler */ - ucontext_t uc; /* arg 3 to signal handler */ -}; - -SCLASS struct sigstatus _thread_sigq[NSIG]; - -/* Indicates that the signal queue needs to be checked. */ -SCLASS volatile int _sigq_check_reqd -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0 -#endif -; - -/* Thread switch hook. */ -SCLASS pthread_switch_routine_t _sched_switch_hook -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL -#endif -; - -/* - * Declare the kernel scheduler jump buffer and stack: - */ -SCLASS jmp_buf _thread_kern_sched_jb; - -SCLASS void * _thread_kern_sched_stack -#ifdef GLOBAL_PTHREAD_PRIVATE -= NULL -#endif -; - - -/* Used for _PTHREADS_INVARIANTS checking. */ -SCLASS int _thread_kern_new_state -#ifdef GLOBAL_PTHREAD_PRIVATE -= 0 -#endif -; - -/* Undefine the storage class specifier: */ -#undef SCLASS - -#ifdef _LOCK_DEBUG -#define _FD_LOCK(_fd,_type,_ts) _thread_fd_lock_debug(_fd, _type, \ - _ts, __FILE__, __LINE__) -#define _FD_UNLOCK(_fd,_type) _thread_fd_unlock_debug(_fd, _type, \ - __FILE__, __LINE__) -#else -#define _FD_LOCK(_fd,_type,_ts) _thread_fd_lock(_fd, _type, _ts) -#define _FD_UNLOCK(_fd,_type) _thread_fd_unlock(_fd, _type) -#endif - -/* - * Function prototype definitions. - */ -__BEGIN_DECLS -char *__ttyname_basic(int); -void _cond_wait_backout(pthread_t); -void _fd_lock_backout(pthread_t); -int _find_thread(pthread_t); -struct pthread *_get_curthread(void); -void _set_curthread(struct pthread *); -void *_thread_stack_alloc(size_t, size_t); -void _thread_stack_free(void *, size_t, size_t); -int _thread_create(pthread_t *,const pthread_attr_t *,void *(*start_routine)(void *),void *,pthread_t); -int _mutex_cv_lock(pthread_mutex_t *); -int _mutex_cv_unlock(pthread_mutex_t *); -void _mutex_lock_backout(pthread_t); -void _mutex_notify_priochange(pthread_t); -int _mutex_reinit(pthread_mutex_t *); -void _mutex_unlock_private(pthread_t); -int _cond_reinit(pthread_cond_t *); -int _pq_alloc(struct pq_queue *, int, int); -int _pq_init(struct pq_queue *); -void _pq_remove(struct pq_queue *pq, struct pthread *); -void _pq_insert_head(struct pq_queue *pq, struct pthread *); -void _pq_insert_tail(struct pq_queue *pq, struct pthread *); -struct pthread *_pq_first(struct pq_queue *pq); -void *_pthread_getspecific(pthread_key_t); -int _pthread_key_create(pthread_key_t *, void (*) (void *)); -int _pthread_key_delete(pthread_key_t); -int _pthread_mutex_destroy(pthread_mutex_t *); -int _pthread_mutex_init(pthread_mutex_t *, const pthread_mutexattr_t *); -int _pthread_mutex_lock(pthread_mutex_t *); -int _pthread_mutex_trylock(pthread_mutex_t *); -int _pthread_mutex_unlock(pthread_mutex_t *); -int _pthread_mutexattr_init(pthread_mutexattr_t *); -int _pthread_mutexattr_destroy(pthread_mutexattr_t *); -int _pthread_mutexattr_settype(pthread_mutexattr_t *, int); -int _pthread_once(pthread_once_t *, void (*) (void)); -pthread_t _pthread_self(void); -int _pthread_setspecific(pthread_key_t, const void *); -void _waitq_insert(pthread_t pthread); -void _waitq_remove(pthread_t pthread); -#if defined(_PTHREADS_INVARIANTS) -void _waitq_setactive(void); -void _waitq_clearactive(void); -#endif -void _thread_exit(char *, int, char *) __dead2; -void _thread_exit_cleanup(void); -int _thread_fd_getflags(int); -int _thread_fd_lock(int, int, struct timespec *); -int _thread_fd_lock_debug(int, int, struct timespec *,char *fname,int lineno); -void _thread_fd_setflags(int, int); -int _thread_fd_table_init(int fd); -void _thread_fd_unlock(int, int); -void _thread_fd_unlock_debug(int, int, char *, int); -void _thread_fd_unlock_owned(pthread_t); -void *_thread_cleanup(pthread_t); -void _thread_cleanupspecific(void); -void _thread_dump_info(void); -void _thread_init(void); -void _thread_kern_sched(ucontext_t *); -void _thread_kern_scheduler(void); -void _thread_kern_sched_frame(struct pthread_signal_frame *psf); -void _thread_kern_sched_sig(void); -void _thread_kern_sched_state(enum pthread_state, char *fname, int lineno); -void _thread_kern_sched_state_unlock(enum pthread_state state, - spinlock_t *lock, char *fname, int lineno); -void _thread_kern_set_timeout(const struct timespec *); -void _thread_kern_sig_defer(void); -void _thread_kern_sig_undefer(void); -void _thread_sig_handler(int, siginfo_t *, ucontext_t *); -void _thread_sig_check_pending(struct pthread *pthread); -void _thread_sig_handle_pending(void); -void _thread_sig_send(struct pthread *pthread, int sig); -void _thread_sig_wrapper(void); -void _thread_sigframe_restore(struct pthread *thread, - struct pthread_signal_frame *psf); -void _thread_start(void); -void _thread_seterrno(pthread_t, int); -pthread_addr_t _thread_gc(pthread_addr_t); -void _thread_enter_cancellation_point(void); -void _thread_leave_cancellation_point(void); -void _thread_cancellation_point(void); - -/* #include <sys/acl.h> */ -#ifdef _SYS_ACL_H -int __sys___acl_aclcheck_fd(int, acl_type_t, struct acl *); -int __sys___acl_delete_fd(int, acl_type_t); -int __sys___acl_get_fd(int, acl_type_t, struct acl *); -int __sys___acl_set_fd(int, acl_type_t, struct acl *); -#endif - -/* #include <sys/aio.h> */ -#ifdef _SYS_AIO_H_ -int __sys_aio_suspend(const struct aiocb * const[], int, const struct timespec *); -#endif - -/* #include <sys/event.h> */ -#ifdef _SYS_EVENT_H_ -int __sys_kevent(int, const struct kevent *, int, struct kevent *, - int, const struct timespec *); -#endif - -/* #include <sys/ioctl.h> */ -#ifdef _SYS_IOCTL_H_ -int __sys_ioctl(int, unsigned long, ...); -#endif - -/* #include <sys/mman.h> */ -#ifdef _SYS_MMAN_H_ -int __sys_msync(void *, size_t, int); -#endif - -/* #include <sys/mount.h> */ -#ifdef _SYS_MOUNT_H_ -int __sys_fstatfs(int, struct statfs *); -#endif - -/* #include <sys/socket.h> */ -#ifdef _SYS_SOCKET_H_ -int __sys_accept(int, struct sockaddr *, socklen_t *); -int __sys_bind(int, const struct sockaddr *, socklen_t); -int __sys_connect(int, const struct sockaddr *, socklen_t); -int __sys_getpeername(int, struct sockaddr *, socklen_t *); -int __sys_getsockname(int, struct sockaddr *, socklen_t *); -int __sys_getsockopt(int, int, int, void *, socklen_t *); -int __sys_listen(int, int); -ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); -ssize_t __sys_recvmsg(int, struct msghdr *, int); -int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); -ssize_t __sys_sendmsg(int, const struct msghdr *, int); -ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); -int __sys_setsockopt(int, int, int, const void *, socklen_t); -int __sys_shutdown(int, int); -int __sys_socket(int, int, int); -int __sys_socketpair(int, int, int, int *); -#endif - -/* #include <sys/stat.h> */ -#ifdef _SYS_STAT_H_ -int __sys_fchflags(int, u_long); -int __sys_fchmod(int, mode_t); -int __sys_fstat(int, struct stat *); -#endif - -/* #include <sys/uio.h> */ -#ifdef _SYS_UIO_H_ -ssize_t __sys_readv(int, const struct iovec *, int); -ssize_t __sys_writev(int, const struct iovec *, int); -#endif - -/* #include <sys/wait.h> */ -#ifdef WNOHANG -pid_t __sys_wait4(pid_t, int *, int, struct rusage *); -#endif - -/* #include <dirent.h> */ -#ifdef _DIRENT_H_ -int __sys_getdirentries(int, char *, int, long *); -#endif - -/* #include <fcntl.h> */ -#ifdef _SYS_FCNTL_H_ -int __sys_fcntl(int, int, ...); -int __sys_flock(int, int); -int __sys_open(const char *, int, ...); -#endif - -/* #include <poll.h> */ -#ifdef _SYS_POLL_H_ -int __sys_poll(struct pollfd *, unsigned, int); -#endif - -/* #include <signal.h> */ -#ifdef _SIGNAL_H_ -int __sys_sigaction(int, const struct sigaction *, struct sigaction *); -int __sys_sigprocmask(int, const sigset_t *, sigset_t *); -int __sys_sigreturn(ucontext_t *); -#endif - -/* #include <unistd.h> */ -#ifdef _UNISTD_H_ -int __sys_close(int); -int __sys_dup(int); -int __sys_dup2(int, int); -int __sys_execve(const char *, char * const *, char * const *); -void __sys_exit(int) __dead2; -int __sys_fchown(int, uid_t, gid_t); -pid_t __sys_fork(void); -long __sys_fpathconf(int, int); -int __sys_fsync(int); -int __sys_pipe(int *); -ssize_t __sys_read(int, void *, size_t); -ssize_t __sys_write(int, const void *, size_t); -#endif - -/* #include <setjmp.h> */ -#ifdef _SETJMP_H_ -extern void __siglongjmp(sigjmp_buf, int) __dead2; -extern void __longjmp(jmp_buf, int) __dead2; -extern void ___longjmp(jmp_buf, int) __dead2; -#endif -__END_DECLS - -#endif /* !_PTHREAD_PRIVATE_H */ diff --git a/lib/libc_r/uthread/uthread_accept.c b/lib/libc_r/uthread/uthread_accept.c deleted file mode 100644 index 2e284a9..0000000 --- a/lib/libc_r/uthread/uthread_accept.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__accept, accept); - -int -_accept(int fd, struct sockaddr * name, socklen_t *namelen) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - /* Lock the file descriptor: */ - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - /* Enter a loop to wait for a connection request: */ - while ((ret = __sys_accept(fd, name, namelen)) < 0) { - /* Check if the socket is to block: */ - if ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0 - && (errno == EWOULDBLOCK || errno == EAGAIN)) { - /* Save the socket file descriptor: */ - curthread->data.fd.fd = fd; - curthread->data.fd.fname = __FILE__; - curthread->data.fd.branch = __LINE__; - - /* Set the timeout: */ - _thread_kern_set_timeout(NULL); - curthread->interrupted = 0; - - /* Schedule the next thread: */ - _thread_kern_sched_state(PS_FDR_WAIT, __FILE__, __LINE__); - - /* Check if the wait was interrupted: */ - if (curthread->interrupted) { - /* Return an error status: */ - errno = EINTR; - ret = -1; - break; - } - } else { - /* - * Another error has occurred, so exit the - * loop here: - */ - break; - } - } - - /* Check for errors: */ - if (ret < 0) { - } - /* Initialise the file descriptor table for the new socket: */ - else if (_thread_fd_table_init(ret) != 0) { - /* Quietly close the socket: */ - __sys_close(ret); - - /* Return an error: */ - ret = -1; - } - /* - * If the parent socket was blocking, make sure that - * the new socket is also set blocking here (as the - * call to _thread_fd_table_init() above will always - * set the new socket flags to non-blocking, as that - * will be the inherited state of the new socket. - */ - if((ret > 0) && (_thread_fd_getflags(fd) & O_NONBLOCK) == 0) - _thread_fd_setflags(ret, - _thread_fd_getflags(ret) & ~O_NONBLOCK); - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_RDWR); - } - /* Return the socket file descriptor or -1 on error: */ - return (ret); -} - -int -__accept(int fd, struct sockaddr * name, socklen_t *namelen) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _accept(fd, name, namelen); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_acl_aclcheck_fd.c b/lib/libc_r/uthread/uthread_acl_aclcheck_fd.c deleted file mode 100644 index 19e9aaa..0000000 --- a/lib/libc_r/uthread/uthread_acl_aclcheck_fd.c +++ /dev/null @@ -1,47 +0,0 @@ -/*- - * Copyright (c) 2001 Thomas Moestl - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/acl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(___acl_aclcheck_fd, __acl_aclcheck_fd); - -int -___acl_aclcheck_fd(int fd, acl_type_t tp, acl_t acl) -{ - int error; - - if ((error = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - error = __sys___acl_aclcheck_fd(fd, tp, (struct acl *)acl); - _FD_UNLOCK(fd, FD_READ); - } - return (error); -} - diff --git a/lib/libc_r/uthread/uthread_acl_delete_fd.c b/lib/libc_r/uthread/uthread_acl_delete_fd.c deleted file mode 100644 index 2368c5f..0000000 --- a/lib/libc_r/uthread/uthread_acl_delete_fd.c +++ /dev/null @@ -1,46 +0,0 @@ -/*- - * Copyright (c) 2001 Thomas Moestl - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/acl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(___acl_delete_fd, __acl_delete_fd); - -int -___acl_delete_fd(int fd, acl_type_t tp) -{ - int error; - - if ((error = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - error = __sys___acl_delete_fd(fd, tp); - _FD_UNLOCK(fd, FD_WRITE); - } - return (error); -} diff --git a/lib/libc_r/uthread/uthread_acl_get_fd.c b/lib/libc_r/uthread/uthread_acl_get_fd.c deleted file mode 100644 index f0fa8b1..0000000 --- a/lib/libc_r/uthread/uthread_acl_get_fd.c +++ /dev/null @@ -1,47 +0,0 @@ -/*- - * Copyright (c) 2001 Thomas Moestl - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/acl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(___acl_get_fd, __acl_get_fd); - -int -___acl_get_fd(int fd, acl_type_t tp, struct acl *acl_p) -{ - int error; - - if ((error = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - error = __sys___acl_get_fd(fd, tp, acl_p); - _FD_UNLOCK(fd, FD_READ); - } - return (error); - -} diff --git a/lib/libc_r/uthread/uthread_acl_set_fd.c b/lib/libc_r/uthread/uthread_acl_set_fd.c deleted file mode 100644 index c68751a..0000000 --- a/lib/libc_r/uthread/uthread_acl_set_fd.c +++ /dev/null @@ -1,46 +0,0 @@ -/*- - * Copyright (c) 2001 Thomas Moestl - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/acl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(___acl_set_fd, __acl_set_fd); - -int -___acl_set_fd(int fd, acl_type_t tp, struct acl *acl_p) -{ - int error; - - if ((error = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - error = __sys___acl_set_fd(fd, tp, acl_p); - _FD_UNLOCK(fd, FD_WRITE); - } - return (error); -} diff --git a/lib/libc_r/uthread/uthread_aio_suspend.c b/lib/libc_r/uthread/uthread_aio_suspend.c deleted file mode 100644 index 23d34f9..0000000 --- a/lib/libc_r/uthread/uthread_aio_suspend.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <aio.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_aio_suspend, aio_suspend); - -int -_aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct - timespec *timeout) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = __sys_aio_suspend(iocbs, niocb, timeout); - _thread_leave_cancellation_point(); - - return ret; -} - diff --git a/lib/libc_r/uthread/uthread_atfork.c b/lib/libc_r/uthread/uthread_atfork.c deleted file mode 100644 index 8a09468..0000000 --- a/lib/libc_r/uthread/uthread_atfork.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <stdlib.h> -#include <pthread.h> -#include <sys/queue.h> -#include "pthread_private.h" - -__weak_reference(_pthread_atfork, pthread_atfork); - -int -_pthread_atfork(void (*prepare)(void), void (*parent)(void), - void (*child)(void)) -{ - struct pthread_atfork *af; - - if (_thread_initial == NULL) - _thread_init(); - - if ((af = malloc(sizeof(struct pthread_atfork))) == NULL) - return (ENOMEM); - - af->prepare = prepare; - af->parent = parent; - af->child = child; - _pthread_mutex_lock(&_atfork_mutex); - TAILQ_INSERT_TAIL(&_atfork_list, af, qe); - _pthread_mutex_unlock(&_atfork_mutex); - return (0); -} - diff --git a/lib/libc_r/uthread/uthread_attr_destroy.c b/lib/libc_r/uthread/uthread_attr_destroy.c deleted file mode 100644 index fd0ff44..0000000 --- a/lib/libc_r/uthread/uthread_attr_destroy.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_destroy, pthread_attr_destroy); - -int -_pthread_attr_destroy(pthread_attr_t *attr) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL) - /* Invalid argument: */ - ret = EINVAL; - else { - /* Free the memory allocated to the attribute object: */ - free(*attr); - - /* - * Leave the attribute pointer NULL now that the memory - * has been freed: - */ - *attr = NULL; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_get_np.c b/lib/libc_r/uthread/uthread_attr_get_np.c deleted file mode 100644 index ba6fd19..0000000 --- a/lib/libc_r/uthread/uthread_attr_get_np.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <string.h> -#include <pthread.h> -#include <pthread_np.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_get_np, pthread_attr_get_np); - -int -_pthread_attr_get_np(pthread_t pid, pthread_attr_t *dst) -{ - int ret; - - if (pid == NULL || dst == NULL || *dst == NULL) - return (EINVAL); - - if ((ret = _find_thread(pid)) != 0) - return (ret); - - memcpy(*dst, &pid->attr, sizeof(struct pthread_attr)); - - /* - * Special case, if stack address was not provided by caller - * of pthread_create(), then return address allocated internally - */ - if ((*dst)->stackaddr_attr == NULL) - (*dst)->stackaddr_attr = pid->stack; - - return (0); -} diff --git a/lib/libc_r/uthread/uthread_attr_getdetachstate.c b/lib/libc_r/uthread/uthread_attr_getdetachstate.c deleted file mode 100644 index 94e2bd1..0000000 --- a/lib/libc_r/uthread/uthread_attr_getdetachstate.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate); - -int -_pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || detachstate == NULL) - ret = EINVAL; - else { - /* Check if the detached flag is set: */ - if ((*attr)->flags & PTHREAD_DETACHED) - /* Return detached: */ - *detachstate = PTHREAD_CREATE_DETACHED; - else - /* Return joinable: */ - *detachstate = PTHREAD_CREATE_JOINABLE; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getguardsize.c b/lib/libc_r/uthread/uthread_attr_getguardsize.c deleted file mode 100644 index 849bf27..0000000 --- a/lib/libc_r/uthread/uthread_attr_getguardsize.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (C) 2001 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer - * unmodified other than the allowable addition of one or more - * copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize); - -int -_pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || guardsize == NULL) - ret = EINVAL; - else { - /* Return the guard size: */ - *guardsize = (*attr)->guardsize_attr; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getinheritsched.c b/lib/libc_r/uthread/uthread_attr_getinheritsched.c deleted file mode 100644 index 6d6d324..0000000 --- a/lib/libc_r/uthread/uthread_attr_getinheritsched.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched); - -int -_pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL)) - ret = EINVAL; - else - *sched_inherit = (*attr)->sched_inherit; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getschedparam.c b/lib/libc_r/uthread/uthread_attr_getschedparam.c deleted file mode 100644 index cac86fa..0000000 --- a/lib/libc_r/uthread/uthread_attr_getschedparam.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam); - -int -_pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL) || (param == NULL)) - ret = EINVAL; - else - param->sched_priority = (*attr)->prio; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getschedpolicy.c b/lib/libc_r/uthread/uthread_attr_getschedpolicy.c deleted file mode 100644 index f2b74fc..0000000 --- a/lib/libc_r/uthread/uthread_attr_getschedpolicy.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy); - -int -_pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL) || (policy == NULL)) - ret = EINVAL; - else - *policy = (*attr)->sched_policy; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getscope.c b/lib/libc_r/uthread/uthread_attr_getscope.c deleted file mode 100644 index 8abf418..0000000 --- a/lib/libc_r/uthread/uthread_attr_getscope.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getscope, pthread_attr_getscope); - -int -_pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL) || (contentionscope == NULL)) - /* Return an invalid argument: */ - ret = EINVAL; - - else - *contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ? - PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getstack.c b/lib/libc_r/uthread/uthread_attr_getstack.c deleted file mode 100644 index e63cd8f..0000000 --- a/lib/libc_r/uthread/uthread_attr_getstack.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Craig Rodrigues. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CRAIG RODRIGUES AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getstack, pthread_attr_getstack); - -int -_pthread_attr_getstack(const pthread_attr_t * __restrict attr, - void ** __restrict stackaddr, - size_t * __restrict stacksize) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || stackaddr == NULL - || stacksize == NULL ) - ret = EINVAL; - else { - /* Return the stack address and size */ - *stackaddr = (*attr)->stackaddr_attr; - *stacksize = (*attr)->stacksize_attr; - ret = 0; - } - return(ret); -} - diff --git a/lib/libc_r/uthread/uthread_attr_getstackaddr.c b/lib/libc_r/uthread/uthread_attr_getstackaddr.c deleted file mode 100644 index a9a05de..0000000 --- a/lib/libc_r/uthread/uthread_attr_getstackaddr.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr); - -int -_pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || stackaddr == NULL) - ret = EINVAL; - else { - /* Return the stack address: */ - *stackaddr = (*attr)->stackaddr_attr; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_getstacksize.c b/lib/libc_r/uthread/uthread_attr_getstacksize.c deleted file mode 100644 index 436d25a..0000000 --- a/lib/libc_r/uthread/uthread_attr_getstacksize.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize); - -int -_pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || stacksize == NULL) - ret = EINVAL; - else { - /* Return the stack size: */ - *stacksize = (*attr)->stacksize_attr; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_init.c b/lib/libc_r/uthread/uthread_attr_init.c deleted file mode 100644 index d973bfa..0000000 --- a/lib/libc_r/uthread/uthread_attr_init.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_init, pthread_attr_init); - -int -_pthread_attr_init(pthread_attr_t *attr) -{ - int ret; - pthread_attr_t pattr; - - /* Allocate memory for the attribute object: */ - if ((pattr = (pthread_attr_t) malloc(sizeof(struct pthread_attr))) == NULL) - /* Insufficient memory: */ - ret = ENOMEM; - else { - /* Initialise the attribute object with the defaults: */ - memcpy(pattr, &_pthread_attr_default, sizeof(*pattr)); - - /* Return a pointer to the attribute object: */ - *attr = pattr; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setcreatesuspend_np.c b/lib/libc_r/uthread/uthread_attr_setcreatesuspend_np.c deleted file mode 100644 index bb29e85..0000000 --- a/lib/libc_r/uthread/uthread_attr_setcreatesuspend_np.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setcreatesuspend_np, pthread_attr_setcreatesuspend_np); - -int -_pthread_attr_setcreatesuspend_np(pthread_attr_t *attr) -{ - int ret; - if (attr == NULL || *attr == NULL) { - errno = EINVAL; - ret = -1; - } else { - (*attr)->suspend = PTHREAD_CREATE_SUSPENDED; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setdetachstate.c b/lib/libc_r/uthread/uthread_attr_setdetachstate.c deleted file mode 100644 index 932bf13..0000000 --- a/lib/libc_r/uthread/uthread_attr_setdetachstate.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate); - -int -_pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || - (detachstate != PTHREAD_CREATE_DETACHED && - detachstate != PTHREAD_CREATE_JOINABLE)) - ret = EINVAL; - else { - /* Check if detached state: */ - if (detachstate == PTHREAD_CREATE_DETACHED) - /* Set the detached flag: */ - (*attr)->flags |= PTHREAD_DETACHED; - else - /* Reset the detached flag: */ - (*attr)->flags &= ~PTHREAD_DETACHED; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setguardsize.c b/lib/libc_r/uthread/uthread_attr_setguardsize.c deleted file mode 100644 index ad3e8bb..0000000 --- a/lib/libc_r/uthread/uthread_attr_setguardsize.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Copyright (C) 2001 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer - * unmodified other than the allowable addition of one or more - * copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize); - -int -_pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize) -{ - int ret; - - /* Check for invalid arguments. */ - if (attr == NULL || *attr == NULL) - ret = EINVAL; - else { - /* - * Round guardsize up to the nearest multiple of - * _pthread_page_size. - */ - if (guardsize % _pthread_page_size != 0) - guardsize = ((guardsize / _pthread_page_size) + 1) * - _pthread_page_size; - - /* Save the stack size. */ - (*attr)->guardsize_attr = guardsize; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setinheritsched.c b/lib/libc_r/uthread/uthread_attr_setinheritsched.c deleted file mode 100644 index 3538131..0000000 --- a/lib/libc_r/uthread/uthread_attr_setinheritsched.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched); - -int -_pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL)) - ret = EINVAL; - else - (*attr)->sched_inherit = sched_inherit; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setschedparam.c b/lib/libc_r/uthread/uthread_attr_setschedparam.c deleted file mode 100644 index c42973e..0000000 --- a/lib/libc_r/uthread/uthread_attr_setschedparam.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam); - -int -_pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL)) - ret = EINVAL; - else if (param == NULL) { - ret = ENOTSUP; - } else if ((param->sched_priority < PTHREAD_MIN_PRIORITY) || - (param->sched_priority > PTHREAD_MAX_PRIORITY)) { - /* Return an unsupported value error. */ - ret = ENOTSUP; - } else - (*attr)->prio = param->sched_priority; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setschedpolicy.c b/lib/libc_r/uthread/uthread_attr_setschedpolicy.c deleted file mode 100644 index d9c83e6..0000000 --- a/lib/libc_r/uthread/uthread_attr_setschedpolicy.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy); - -int -_pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL)) - ret = EINVAL; - else if ((policy < SCHED_FIFO) || (policy > SCHED_RR)) { - ret = ENOTSUP; - } else - (*attr)->sched_policy = policy; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setscope.c b/lib/libc_r/uthread/uthread_attr_setscope.c deleted file mode 100644 index 3614615..0000000 --- a/lib/libc_r/uthread/uthread_attr_setscope.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setscope, pthread_attr_setscope); - -int -_pthread_attr_setscope(pthread_attr_t *attr, int contentionscope) -{ - int ret = 0; - - if ((attr == NULL) || (*attr == NULL)) { - /* Return an invalid argument: */ - ret = EINVAL; - } else if ((contentionscope != PTHREAD_SCOPE_PROCESS) || - (contentionscope == PTHREAD_SCOPE_SYSTEM)) { - /* We don't support PTHREAD_SCOPE_SYSTEM. */ - ret = ENOTSUP; - } else - (*attr)->flags |= contentionscope; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setstack.c b/lib/libc_r/uthread/uthread_attr_setstack.c deleted file mode 100644 index e03f6de..0000000 --- a/lib/libc_r/uthread/uthread_attr_setstack.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Craig Rodrigues. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CRAIG RODRIGUES AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setstack, pthread_attr_setstack); - -int -_pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr, - size_t stacksize) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || stackaddr == NULL - || stacksize < PTHREAD_STACK_MIN ) - ret = EINVAL; - else { - /* Save the stack address and stack size */ - (*attr)->stackaddr_attr = stackaddr; - (*attr)->stacksize_attr = stacksize; - ret = 0; - } - return(ret); -} - diff --git a/lib/libc_r/uthread/uthread_attr_setstackaddr.c b/lib/libc_r/uthread/uthread_attr_setstackaddr.c deleted file mode 100644 index b595451..0000000 --- a/lib/libc_r/uthread/uthread_attr_setstackaddr.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr); - -int -_pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || stackaddr == NULL) - ret = EINVAL; - else { - /* Save the stack address: */ - (*attr)->stackaddr_attr = stackaddr; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_attr_setstacksize.c b/lib/libc_r/uthread/uthread_attr_setstacksize.c deleted file mode 100644 index 2e73626..0000000 --- a/lib/libc_r/uthread/uthread_attr_setstacksize.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize); - -int -_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize) -{ - int ret; - - /* Check for invalid arguments: */ - if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN) - ret = EINVAL; - else { - /* Save the stack size: */ - (*attr)->stacksize_attr = stacksize; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_autoinit.c b/lib/libc_r/uthread/uthread_autoinit.c deleted file mode 100644 index 03ee58d..0000000 --- a/lib/libc_r/uthread/uthread_autoinit.c +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright (c) 2002 Alfred Perlstein <alfred@freebsd.org>. - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by John Birrell. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <pthread.h> -#include <pthread_private.h> - -/* - * This module uses GCC extentions to initialize the - * threads package at program start-up time. - */ - -void _thread_init_hack(void) __attribute__ ((constructor)); - -void -_thread_init_hack(void) -{ - - _thread_init(); -} - -/* - * For the shared version of the threads library, the above is sufficient. - * But for the archive version of the library, we need a little bit more. - * Namely, we must arrange for this particular module to be pulled in from - * the archive library at link time. To accomplish that, we define and - * initialize a variable, "_thread_autoinit_dummy_decl". This variable is - * referenced (as an extern) from libc/stdlib/exit.c. This will always - * create a need for this module, ensuring that it is present in the - * executable. - */ -extern int _thread_autoinit_dummy_decl; -int _thread_autoinit_dummy_decl = 0; diff --git a/lib/libc_r/uthread/uthread_bind.c b/lib/libc_r/uthread/uthread_bind.c deleted file mode 100644 index d15be6e..0000000 --- a/lib/libc_r/uthread/uthread_bind.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_bind, bind); - -int -_bind(int fd, const struct sockaddr * name, socklen_t namelen) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_bind(fd, name, namelen); - _FD_UNLOCK(fd, FD_RDWR); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_cancel.c b/lib/libc_r/uthread/uthread_cancel.c deleted file mode 100644 index d9324ab..0000000 --- a/lib/libc_r/uthread/uthread_cancel.c +++ /dev/null @@ -1,231 +0,0 @@ -/* - * David Leonard <d@openbsd.org>, 1999. Public domain. - * $FreeBSD$ - */ -#include <sys/errno.h> -#include <pthread.h> -#include "pthread_private.h" - -static void finish_cancellation(void *arg); - -__weak_reference(_pthread_cancel, pthread_cancel); -__weak_reference(_pthread_setcancelstate, pthread_setcancelstate); -__weak_reference(_pthread_setcanceltype, pthread_setcanceltype); -__weak_reference(_pthread_testcancel, pthread_testcancel); - -int -_pthread_cancel(pthread_t pthread) -{ - int ret; - - if ((ret = _find_thread(pthread)) != 0) { - /* NOTHING */ - } else if (pthread->state == PS_DEAD || pthread->state == PS_DEADLOCK - || (pthread->flags & PTHREAD_EXITING) != 0) { - ret = 0; - } else { - /* Protect the scheduling queues: */ - _thread_kern_sig_defer(); - - if (((pthread->cancelflags & PTHREAD_CANCEL_DISABLE) != 0) || - (((pthread->cancelflags & PTHREAD_CANCEL_ASYNCHRONOUS) == 0) && - ((pthread->cancelflags & PTHREAD_AT_CANCEL_POINT) == 0))) - /* Just mark it for cancellation: */ - pthread->cancelflags |= PTHREAD_CANCELLING; - else { - /* - * Check if we need to kick it back into the - * run queue: - */ - switch (pthread->state) { - case PS_RUNNING: - /* No need to resume: */ - pthread->cancelflags |= PTHREAD_CANCELLING; - break; - - case PS_SPINBLOCK: - case PS_FDR_WAIT: - case PS_FDW_WAIT: - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - /* Remove these threads from the work queue: */ - if ((pthread->flags & PTHREAD_FLAGS_IN_WORKQ) - != 0) - PTHREAD_WORKQ_REMOVE(pthread); - /* Fall through: */ - case PS_SIGTHREAD: - case PS_SLEEP_WAIT: - case PS_WAIT_WAIT: - case PS_SIGSUSPEND: - case PS_SIGWAIT: - /* Interrupt and resume: */ - pthread->interrupted = 1; - pthread->cancelflags |= PTHREAD_CANCELLING; - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - break; - - case PS_JOIN: - /* - * Disconnect the thread from the joinee: - */ - if (pthread->join_status.thread != NULL) { - pthread->join_status.thread->joiner - = NULL; - pthread->join_status.thread = NULL; - } - pthread->cancelflags |= PTHREAD_CANCELLING; - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - break; - - case PS_SUSPENDED: - case PS_MUTEX_WAIT: - case PS_COND_WAIT: - case PS_FDLR_WAIT: - case PS_FDLW_WAIT: - case PS_FILE_WAIT: - /* - * Threads in these states may be in queues. - * In order to preserve queue integrity, the - * cancelled thread must remove itself from the - * queue. Mark the thread as interrupted and - * needing cancellation, and set the state to - * running. When the thread resumes, it will - * remove itself from the queue and call the - * cancellation completion routine. - */ - pthread->interrupted = 1; - pthread->cancelflags |= PTHREAD_CANCEL_NEEDED; - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - pthread->continuation = finish_cancellation; - break; - - case PS_DEAD: - case PS_DEADLOCK: - case PS_STATE_MAX: - /* Ignore - only here to silence -Wall: */ - break; - } - } - - /* Unprotect the scheduling queues: */ - _thread_kern_sig_undefer(); - - ret = 0; - } - return (ret); -} - -int -_pthread_setcancelstate(int state, int *oldstate) -{ - struct pthread *curthread = _get_curthread(); - int ostate; - int ret; - - ostate = curthread->cancelflags & PTHREAD_CANCEL_DISABLE; - - switch (state) { - case PTHREAD_CANCEL_ENABLE: - if (oldstate != NULL) - *oldstate = ostate; - curthread->cancelflags &= ~PTHREAD_CANCEL_DISABLE; - if ((curthread->cancelflags & PTHREAD_CANCEL_ASYNCHRONOUS) != 0) - pthread_testcancel(); - ret = 0; - break; - case PTHREAD_CANCEL_DISABLE: - if (oldstate != NULL) - *oldstate = ostate; - curthread->cancelflags |= PTHREAD_CANCEL_DISABLE; - ret = 0; - break; - default: - ret = EINVAL; - } - - return (ret); -} - -int -_pthread_setcanceltype(int type, int *oldtype) -{ - struct pthread *curthread = _get_curthread(); - int otype; - int ret; - - otype = curthread->cancelflags & PTHREAD_CANCEL_ASYNCHRONOUS; - switch (type) { - case PTHREAD_CANCEL_ASYNCHRONOUS: - if (oldtype != NULL) - *oldtype = otype; - curthread->cancelflags |= PTHREAD_CANCEL_ASYNCHRONOUS; - pthread_testcancel(); - ret = 0; - break; - case PTHREAD_CANCEL_DEFERRED: - if (oldtype != NULL) - *oldtype = otype; - curthread->cancelflags &= ~PTHREAD_CANCEL_ASYNCHRONOUS; - ret = 0; - break; - default: - ret = EINVAL; - } - - return (ret); -} - -void -_pthread_testcancel(void) -{ - struct pthread *curthread = _get_curthread(); - - if (((curthread->cancelflags & PTHREAD_CANCEL_DISABLE) == 0) && - ((curthread->cancelflags & PTHREAD_CANCELLING) != 0) && - ((curthread->flags & PTHREAD_EXITING) == 0)) { - /* - * It is possible for this thread to be swapped out - * while performing cancellation; do not allow it - * to be cancelled again. - */ - curthread->cancelflags &= ~PTHREAD_CANCELLING; - _thread_exit_cleanup(); - pthread_exit(PTHREAD_CANCELED); - PANIC("cancel"); - } -} - -void -_thread_enter_cancellation_point(void) -{ - struct pthread *curthread = _get_curthread(); - - /* Look for a cancellation before we block: */ - pthread_testcancel(); - curthread->cancelflags |= PTHREAD_AT_CANCEL_POINT; -} - -void -_thread_leave_cancellation_point(void) -{ - struct pthread *curthread = _get_curthread(); - - curthread->cancelflags &= ~PTHREAD_AT_CANCEL_POINT; - /* Look for a cancellation after we unblock: */ - pthread_testcancel(); -} - -static void -finish_cancellation(void *arg) -{ - struct pthread *curthread = _get_curthread(); - - curthread->continuation = NULL; - curthread->interrupted = 0; - - if ((curthread->cancelflags & PTHREAD_CANCEL_NEEDED) != 0) { - curthread->cancelflags &= ~PTHREAD_CANCEL_NEEDED; - _thread_exit_cleanup(); - pthread_exit(PTHREAD_CANCELED); - } -} diff --git a/lib/libc_r/uthread/uthread_clean.c b/lib/libc_r/uthread/uthread_clean.c deleted file mode 100644 index 826f6b8..0000000 --- a/lib/libc_r/uthread/uthread_clean.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <errno.h> -#include <stdlib.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_cleanup_push, pthread_cleanup_push); -__weak_reference(_pthread_cleanup_pop, pthread_cleanup_pop); - -void -_pthread_cleanup_push(void (*routine) (void *), void *routine_arg) -{ - struct pthread *curthread = _get_curthread(); - struct pthread_cleanup *new; - - if ((new = (struct pthread_cleanup *) malloc(sizeof(struct pthread_cleanup))) != NULL) { - new->routine = routine; - new->routine_arg = routine_arg; - new->next = curthread->cleanup; - - curthread->cleanup = new; - } -} - -void -_pthread_cleanup_pop(int execute) -{ - struct pthread *curthread = _get_curthread(); - struct pthread_cleanup *old; - - if ((old = curthread->cleanup) != NULL) { - curthread->cleanup = old->next; - if (execute) { - old->routine(old->routine_arg); - } - free(old); - } -} - diff --git a/lib/libc_r/uthread/uthread_close.c b/lib/libc_r/uthread/uthread_close.c deleted file mode 100644 index 2808076..0000000 --- a/lib/libc_r/uthread/uthread_close.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__close, close); - -int -_close(int fd) -{ - int flags; - int ret; - struct stat sb; - struct fd_table_entry *entry; - - if ((fd < 0) || (fd >= _thread_dtablesize) || - (fd == _thread_kern_pipe[0]) || (fd == _thread_kern_pipe[1]) || - (_thread_fd_table[fd] == NULL)) { - /* - * Don't allow silly programs to close the kernel pipe - * and non-active descriptors. - */ - errno = EBADF; - ret = -1; - } - /* - * Lock the file descriptor while the file is closed and get - * the file descriptor status: - */ - else if (((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) && - ((ret = __sys_fstat(fd, &sb)) == 0)) { - /* - * Check if the file should be left as blocking. - * - * This is so that the file descriptors shared with a parent - * process aren't left set to non-blocking if the child - * closes them prior to exit. An example where this causes - * problems with /bin/sh is when a child closes stdin. - * - * Setting a file as blocking causes problems if a threaded - * parent accesses the file descriptor before the child exits. - * Once the threaded parent receives a SIGCHLD then it resets - * all of its files to non-blocking, and so it is then safe - * to access them. - * - * Pipes are not set to blocking when they are closed, as - * the parent and child will normally close the file - * descriptor of the end of the pipe that they are not - * using, which would then cause any reads to block - * indefinitely. - */ - if ((S_ISREG(sb.st_mode) || S_ISCHR(sb.st_mode)) - && (_thread_fd_getflags(fd) & O_NONBLOCK) == 0) { - /* Get the current flags: */ - flags = __sys_fcntl(fd, F_GETFL, NULL); - /* Clear the nonblocking file descriptor flag: */ - __sys_fcntl(fd, F_SETFL, flags & ~O_NONBLOCK); - } - - /* XXX: Assumes well behaved threads. */ - /* XXX: Defer real close to avoid race condition */ - entry = _thread_fd_table[fd]; - _thread_fd_table[fd] = NULL; - free(entry); - - /* Drop stale pthread stdio descriptor flags. */ - if (fd < 3) - _pthread_stdio_flags[fd] = -1; - - /* Close the file descriptor: */ - ret = __sys_close(fd); - } - return (ret); -} - -int -__close(int fd) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _close(fd); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_concurrency.c b/lib/libc_r/uthread/uthread_concurrency.c deleted file mode 100644 index ddb82c1..0000000 --- a/lib/libc_r/uthread/uthread_concurrency.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright (c) 2003 Sergey Osokin <osa@FreeBSD.org.ru>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Sergey Osokin. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY SERGEY OSOKIN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <errno.h> - -static int current_concurrency = 0; - -__weak_reference(_pthread_getconcurrency, pthread_getconcurrency); -__weak_reference(_pthread_setconcurrency, pthread_setconcurrency); - -int -_pthread_getconcurrency(void) -{ - return current_concurrency; -} - -int -_pthread_setconcurrency(int new_level) -{ - int ret; - - if (new_level < 0) { - ret = EINVAL; - } else { - current_concurrency = new_level; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_cond.c b/lib/libc_r/uthread/uthread_cond.c deleted file mode 100644 index 6a4c038..0000000 --- a/lib/libc_r/uthread/uthread_cond.c +++ /dev/null @@ -1,765 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -/* - * Prototypes - */ -static inline pthread_t cond_queue_deq(pthread_cond_t); -static inline void cond_queue_remove(pthread_cond_t, pthread_t); -static inline void cond_queue_enq(pthread_cond_t, pthread_t); -int __pthread_cond_timedwait(pthread_cond_t *, - pthread_mutex_t *, const struct timespec *); -int __pthread_cond_wait(pthread_cond_t *, - pthread_mutex_t *); - - -/* - * Double underscore versions are cancellation points. Single underscore - * versions are not and are provided for libc internal usage (which - * shouldn't introduce cancellation points). - */ -__weak_reference(__pthread_cond_wait, pthread_cond_wait); -__weak_reference(__pthread_cond_timedwait, pthread_cond_timedwait); - -__weak_reference(_pthread_cond_init, pthread_cond_init); -__weak_reference(_pthread_cond_destroy, pthread_cond_destroy); -__weak_reference(_pthread_cond_signal, pthread_cond_signal); -__weak_reference(_pthread_cond_broadcast, pthread_cond_broadcast); - - -/* - * Reinitialize a private condition variable; this is only used for - * internal condition variables. Currently, there is no difference. - */ -int -_cond_reinit(pthread_cond_t *cond) -{ - int ret = 0; - - if (cond == NULL) - ret = EINVAL; - else if (*cond == NULL) - ret = _pthread_cond_init(cond, NULL); - else { - /* - * Initialize the condition variable structure: - */ - TAILQ_INIT(&(*cond)->c_queue); - (*cond)->c_flags = COND_FLAGS_INITED; - (*cond)->c_type = COND_TYPE_FAST; - (*cond)->c_mutex = NULL; - (*cond)->c_seqno = 0; - memset(&(*cond)->lock, 0, sizeof((*cond)->lock)); - } - return (ret); -} - -int -_pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *cond_attr) -{ - enum pthread_cond_type type; - pthread_cond_t pcond; - int rval = 0; - - if (cond == NULL) - rval = EINVAL; - else { - /* - * Check if a pointer to a condition variable attribute - * structure was passed by the caller: - */ - if (cond_attr != NULL && *cond_attr != NULL) { - /* Default to a fast condition variable: */ - type = (*cond_attr)->c_type; - } else { - /* Default to a fast condition variable: */ - type = COND_TYPE_FAST; - } - - /* Process according to condition variable type: */ - switch (type) { - /* Fast condition variable: */ - case COND_TYPE_FAST: - /* Nothing to do here. */ - break; - - /* Trap invalid condition variable types: */ - default: - /* Return an invalid argument error: */ - rval = EINVAL; - break; - } - - /* Check for no errors: */ - if (rval == 0) { - if ((pcond = (pthread_cond_t) - malloc(sizeof(struct pthread_cond))) == NULL) { - rval = ENOMEM; - } else { - /* - * Initialise the condition variable - * structure: - */ - TAILQ_INIT(&pcond->c_queue); - pcond->c_flags |= COND_FLAGS_INITED; - pcond->c_type = type; - pcond->c_mutex = NULL; - pcond->c_seqno = 0; - memset(&pcond->lock,0,sizeof(pcond->lock)); - *cond = pcond; - } - } - } - /* Return the completion status: */ - return (rval); -} - -int -_pthread_cond_destroy(pthread_cond_t *cond) -{ - int rval = 0; - - if (cond == NULL || *cond == NULL) - rval = EINVAL; - else { - /* Lock the condition variable structure: */ - _SPINLOCK(&(*cond)->lock); - - /* - * Free the memory allocated for the condition - * variable structure: - */ - free(*cond); - - /* - * NULL the caller's pointer now that the condition - * variable has been destroyed: - */ - *cond = NULL; - } - /* Return the completion status: */ - return (rval); -} - -int -_pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) -{ - struct pthread *curthread = _get_curthread(); - int rval = 0; - int done = 0; - int interrupted = 0; - int seqno; - - if (cond == NULL) - return (EINVAL); - - /* - * If the condition variable is statically initialized, - * perform the dynamic initialization: - */ - if (*cond == NULL && - (rval = _pthread_cond_init(cond, NULL)) != 0) - return (rval); - - /* - * Enter a loop waiting for a condition signal or broadcast - * to wake up this thread. A loop is needed in case the waiting - * thread is interrupted by a signal to execute a signal handler. - * It is not (currently) possible to remain in the waiting queue - * while running a handler. Instead, the thread is interrupted - * and backed out of the waiting queue prior to executing the - * signal handler. - */ - do { - /* Lock the condition variable structure: */ - _SPINLOCK(&(*cond)->lock); - - /* - * If the condvar was statically allocated, properly - * initialize the tail queue. - */ - if (((*cond)->c_flags & COND_FLAGS_INITED) == 0) { - TAILQ_INIT(&(*cond)->c_queue); - (*cond)->c_flags |= COND_FLAGS_INITED; - } - - /* Process according to condition variable type: */ - switch ((*cond)->c_type) { - /* Fast condition variable: */ - case COND_TYPE_FAST: - if ((mutex == NULL) || (((*cond)->c_mutex != NULL) && - ((*cond)->c_mutex != *mutex))) { - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - - /* Return invalid argument error: */ - rval = EINVAL; - } else { - /* Reset the timeout and interrupted flags: */ - curthread->timeout = 0; - curthread->interrupted = 0; - - /* - * Queue the running thread for the condition - * variable: - */ - cond_queue_enq(*cond, curthread); - - /* Remember the mutex and sequence number: */ - (*cond)->c_mutex = *mutex; - seqno = (*cond)->c_seqno; - - /* Wait forever: */ - curthread->wakeup_time.tv_sec = -1; - - /* Unlock the mutex: */ - if ((rval = _mutex_cv_unlock(mutex)) != 0) { - /* - * Cannot unlock the mutex, so remove - * the running thread from the condition - * variable queue: - */ - cond_queue_remove(*cond, curthread); - - /* Check for no more waiters: */ - if (TAILQ_FIRST(&(*cond)->c_queue) == - NULL) - (*cond)->c_mutex = NULL; - - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - } else { - /* - * Schedule the next thread and unlock - * the condition variable structure: - */ - _thread_kern_sched_state_unlock(PS_COND_WAIT, - &(*cond)->lock, __FILE__, __LINE__); - - done = (seqno != (*cond)->c_seqno); - - interrupted = curthread->interrupted; - - /* - * Check if the wait was interrupted - * (canceled) or needs to be resumed - * after handling a signal. - */ - if (interrupted != 0) { - /* - * Lock the mutex and ignore any - * errors. Note that even - * though this thread may have - * been canceled, POSIX requires - * that the mutex be reaquired - * prior to cancellation. - */ - (void)_mutex_cv_lock(mutex); - } else { - /* - * Lock the condition variable - * while removing the thread. - */ - _SPINLOCK(&(*cond)->lock); - - cond_queue_remove(*cond, - curthread); - - /* Check for no more waiters: */ - if (TAILQ_FIRST(&(*cond)->c_queue) == NULL) - (*cond)->c_mutex = NULL; - - _SPINUNLOCK(&(*cond)->lock); - - /* Lock the mutex: */ - rval = _mutex_cv_lock(mutex); - } - } - } - break; - - /* Trap invalid condition variable types: */ - default: - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - - /* Return an invalid argument error: */ - rval = EINVAL; - break; - } - - if ((interrupted != 0) && (curthread->continuation != NULL)) - curthread->continuation((void *) curthread); - } while ((done == 0) && (rval == 0)); - - /* Return the completion status: */ - return (rval); -} - -int -__pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _pthread_cond_wait(cond, mutex); - _thread_leave_cancellation_point(); - return (ret); -} - -int -_pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - struct pthread *curthread = _get_curthread(); - int rval = 0; - int done = 0; - int interrupted = 0; - int seqno; - - if (abstime == NULL || abstime->tv_sec < 0 || abstime->tv_nsec < 0 || - abstime->tv_nsec >= 1000000000) - return (EINVAL); - /* - * If the condition variable is statically initialized, perform dynamic - * initialization. - */ - if (*cond == NULL && (rval = _pthread_cond_init(cond, NULL)) != 0) - return (rval); - - /* - * Enter a loop waiting for a condition signal or broadcast - * to wake up this thread. A loop is needed in case the waiting - * thread is interrupted by a signal to execute a signal handler. - * It is not (currently) possible to remain in the waiting queue - * while running a handler. Instead, the thread is interrupted - * and backed out of the waiting queue prior to executing the - * signal handler. - */ - do { - /* Lock the condition variable structure: */ - _SPINLOCK(&(*cond)->lock); - - /* - * If the condvar was statically allocated, properly - * initialize the tail queue. - */ - if (((*cond)->c_flags & COND_FLAGS_INITED) == 0) { - TAILQ_INIT(&(*cond)->c_queue); - (*cond)->c_flags |= COND_FLAGS_INITED; - } - - /* Process according to condition variable type: */ - switch ((*cond)->c_type) { - /* Fast condition variable: */ - case COND_TYPE_FAST: - if ((mutex == NULL) || (((*cond)->c_mutex != NULL) && - ((*cond)->c_mutex != *mutex))) { - /* Return invalid argument error: */ - rval = EINVAL; - - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - } else { - /* Set the wakeup time: */ - curthread->wakeup_time.tv_sec = - abstime->tv_sec; - curthread->wakeup_time.tv_nsec = - abstime->tv_nsec; - - /* Reset the timeout and interrupted flags: */ - curthread->timeout = 0; - curthread->interrupted = 0; - - /* - * Queue the running thread for the condition - * variable: - */ - cond_queue_enq(*cond, curthread); - - /* Remember the mutex and sequence number: */ - (*cond)->c_mutex = *mutex; - seqno = (*cond)->c_seqno; - - /* Unlock the mutex: */ - if ((rval = _mutex_cv_unlock(mutex)) != 0) { - /* - * Cannot unlock the mutex, so remove - * the running thread from the condition - * variable queue: - */ - cond_queue_remove(*cond, curthread); - - /* Check for no more waiters: */ - if (TAILQ_FIRST(&(*cond)->c_queue) == NULL) - (*cond)->c_mutex = NULL; - - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - } else { - /* - * Schedule the next thread and unlock - * the condition variable structure: - */ - _thread_kern_sched_state_unlock(PS_COND_WAIT, - &(*cond)->lock, __FILE__, __LINE__); - - done = (seqno != (*cond)->c_seqno); - - interrupted = curthread->interrupted; - - /* - * Check if the wait was interrupted - * (canceled) or needs to be resumed - * after handling a signal. - */ - if (interrupted != 0) { - /* - * Lock the mutex and ignore any - * errors. Note that even - * though this thread may have - * been canceled, POSIX requires - * that the mutex be reaquired - * prior to cancellation. - */ - (void)_mutex_cv_lock(mutex); - } else { - /* - * Lock the condition variable - * while removing the thread. - */ - _SPINLOCK(&(*cond)->lock); - - cond_queue_remove(*cond, - curthread); - - /* Check for no more waiters: */ - if (TAILQ_FIRST(&(*cond)->c_queue) == NULL) - (*cond)->c_mutex = NULL; - - _SPINUNLOCK(&(*cond)->lock); - - /* Lock the mutex: */ - rval = _mutex_cv_lock(mutex); - - /* - * Return ETIMEDOUT if the wait - * timed out and there wasn't an - * error locking the mutex: - */ - if ((curthread->timeout != 0) - && rval == 0) - rval = ETIMEDOUT; - - } - } - } - break; - - /* Trap invalid condition variable types: */ - default: - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - - /* Return an invalid argument error: */ - rval = EINVAL; - break; - } - - if ((interrupted != 0) && (curthread->continuation != NULL)) - curthread->continuation((void *) curthread); - } while ((done == 0) && (rval == 0)); - - /* Return the completion status: */ - return (rval); -} - -int -__pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _pthread_cond_timedwait(cond, mutex, abstime); - _thread_enter_cancellation_point(); - return (ret); -} - -int -_pthread_cond_signal(pthread_cond_t *cond) -{ - int rval = 0; - pthread_t pthread; - - if (cond == NULL) - rval = EINVAL; - /* - * If the condition variable is statically initialized, perform dynamic - * initialization. - */ - else if (*cond != NULL || - (rval = _pthread_cond_init(cond, NULL)) == 0) { - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Lock the condition variable structure: */ - _SPINLOCK(&(*cond)->lock); - - /* Process according to condition variable type: */ - switch ((*cond)->c_type) { - /* Fast condition variable: */ - case COND_TYPE_FAST: - /* Increment the sequence number: */ - (*cond)->c_seqno++; - - if ((pthread = cond_queue_deq(*cond)) != NULL) { - /* - * Wake up the signaled thread: - */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - } - - /* Check for no more waiters: */ - if (TAILQ_FIRST(&(*cond)->c_queue) == NULL) - (*cond)->c_mutex = NULL; - break; - - /* Trap invalid condition variable types: */ - default: - /* Return an invalid argument error: */ - rval = EINVAL; - break; - } - - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - - /* Return the completion status: */ - return (rval); -} - -int -_pthread_cond_broadcast(pthread_cond_t *cond) -{ - int rval = 0; - pthread_t pthread; - - if (cond == NULL) - rval = EINVAL; - /* - * If the condition variable is statically initialized, perform dynamic - * initialization. - */ - else if (*cond != NULL || - (rval = _pthread_cond_init(cond, NULL)) == 0) { - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Lock the condition variable structure: */ - _SPINLOCK(&(*cond)->lock); - - /* Process according to condition variable type: */ - switch ((*cond)->c_type) { - /* Fast condition variable: */ - case COND_TYPE_FAST: - /* Increment the sequence number: */ - (*cond)->c_seqno++; - - /* - * Enter a loop to bring all threads off the - * condition queue: - */ - while ((pthread = cond_queue_deq(*cond)) != NULL) { - /* - * Wake up the signaled thread: - */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - } - - /* There are no more waiting threads: */ - (*cond)->c_mutex = NULL; - break; - - /* Trap invalid condition variable types: */ - default: - /* Return an invalid argument error: */ - rval = EINVAL; - break; - } - - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&(*cond)->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - - /* Return the completion status: */ - return (rval); -} - -void -_cond_wait_backout(pthread_t pthread) -{ - pthread_cond_t cond; - - cond = pthread->data.cond; - if (cond != NULL) { - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Lock the condition variable structure: */ - _SPINLOCK(&cond->lock); - - /* Process according to condition variable type: */ - switch (cond->c_type) { - /* Fast condition variable: */ - case COND_TYPE_FAST: - cond_queue_remove(cond, pthread); - - /* Check for no more waiters: */ - if (TAILQ_FIRST(&cond->c_queue) == NULL) - cond->c_mutex = NULL; - break; - - default: - break; - } - - /* Unlock the condition variable structure: */ - _SPINUNLOCK(&cond->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } -} - -/* - * Dequeue a waiting thread from the head of a condition queue in - * descending priority order. - */ -static inline pthread_t -cond_queue_deq(pthread_cond_t cond) -{ - pthread_t pthread; - - while ((pthread = TAILQ_FIRST(&cond->c_queue)) != NULL) { - TAILQ_REMOVE(&cond->c_queue, pthread, sqe); - pthread->flags &= ~PTHREAD_FLAGS_IN_CONDQ; - if ((pthread->timeout == 0) && (pthread->interrupted == 0)) - /* - * Only exit the loop when we find a thread - * that hasn't timed out or been canceled; - * those threads are already running and don't - * need their run state changed. - */ - break; - } - - return(pthread); -} - -/* - * Remove a waiting thread from a condition queue in descending priority - * order. - */ -static inline void -cond_queue_remove(pthread_cond_t cond, pthread_t pthread) -{ - /* - * Because pthread_cond_timedwait() can timeout as well - * as be signaled by another thread, it is necessary to - * guard against removing the thread from the queue if - * it isn't in the queue. - */ - if (pthread->flags & PTHREAD_FLAGS_IN_CONDQ) { - TAILQ_REMOVE(&cond->c_queue, pthread, sqe); - pthread->flags &= ~PTHREAD_FLAGS_IN_CONDQ; - } -} - -/* - * Enqueue a waiting thread to a condition queue in descending priority - * order. - */ -static inline void -cond_queue_enq(pthread_cond_t cond, pthread_t pthread) -{ - pthread_t tid = TAILQ_LAST(&cond->c_queue, cond_head); - - PTHREAD_ASSERT_NOT_IN_SYNCQ(pthread); - - /* - * For the common case of all threads having equal priority, - * we perform a quick check against the priority of the thread - * at the tail of the queue. - */ - if ((tid == NULL) || (pthread->active_priority <= tid->active_priority)) - TAILQ_INSERT_TAIL(&cond->c_queue, pthread, sqe); - else { - tid = TAILQ_FIRST(&cond->c_queue); - while (pthread->active_priority <= tid->active_priority) - tid = TAILQ_NEXT(tid, sqe); - TAILQ_INSERT_BEFORE(tid, pthread, sqe); - } - pthread->flags |= PTHREAD_FLAGS_IN_CONDQ; - pthread->data.cond = cond; -} diff --git a/lib/libc_r/uthread/uthread_condattr_destroy.c b/lib/libc_r/uthread/uthread_condattr_destroy.c deleted file mode 100644 index aef920d..0000000 --- a/lib/libc_r/uthread/uthread_condattr_destroy.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_condattr_destroy, pthread_condattr_destroy); - -int -_pthread_condattr_destroy(pthread_condattr_t *attr) -{ - int ret; - if (attr == NULL || *attr == NULL) { - ret = EINVAL; - } else { - free(*attr); - *attr = NULL; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_condattr_init.c b/lib/libc_r/uthread/uthread_condattr_init.c deleted file mode 100644 index e35b217..0000000 --- a/lib/libc_r/uthread/uthread_condattr_init.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_condattr_init, pthread_condattr_init); - -static struct pthread_cond_attr default_condattr = PTHREAD_CONDATTR_DEFAULT; - -int -_pthread_condattr_init(pthread_condattr_t *attr) -{ - int ret; - pthread_condattr_t pattr; - - if ((pattr = (pthread_condattr_t) - malloc(sizeof(struct pthread_cond_attr))) == NULL) { - ret = ENOMEM; - } else { - memcpy(pattr, &default_condattr, - sizeof(struct pthread_cond_attr)); - *attr = pattr; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_connect.c b/lib/libc_r/uthread/uthread_connect.c deleted file mode 100644 index efe6efd..0000000 --- a/lib/libc_r/uthread/uthread_connect.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__connect, connect); - -int -_connect(int fd, const struct sockaddr * name, socklen_t namelen) -{ - struct pthread *curthread = _get_curthread(); - struct sockaddr tmpname; - int errnolen, ret, tmpnamelen; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - if ((ret = __sys_connect(fd, name, namelen)) < 0) { - if ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0 - && ((errno == EWOULDBLOCK) || (errno == EINPROGRESS) - || (errno == EALREADY) || (errno == EAGAIN))) { - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(NULL); - _thread_kern_sched_state(PS_FDW_WAIT, __FILE__, __LINE__); - - tmpnamelen = sizeof(tmpname); - /* 0 now lets see if it really worked */ - if (((ret = __sys_getpeername(fd, &tmpname, &tmpnamelen)) < 0) && (errno == ENOTCONN)) { - - /* - * Get the error, this function - * should not fail - */ - errnolen = sizeof(errno); - __sys_getsockopt(fd, SOL_SOCKET, SO_ERROR, &errno, &errnolen); - } - } else { - ret = -1; - } - } - _FD_UNLOCK(fd, FD_RDWR); - } - return (ret); -} - -int -__connect(int fd, const struct sockaddr * name, socklen_t namelen) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _connect(fd, name, namelen); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_creat.c b/lib/libc_r/uthread/uthread_creat.c deleted file mode 100644 index 92da971..0000000 --- a/lib/libc_r/uthread/uthread_creat.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(___creat, creat); - -int -___creat(const char *path, mode_t mode) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = __creat(path, mode); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_create.c b/lib/libc_r/uthread/uthread_create.c deleted file mode 100644 index 3474bfa..0000000 --- a/lib/libc_r/uthread/uthread_create.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <unistd.h> -#include <stddef.h> -#include <sys/time.h> -#include <machine/reg.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" - -#include "pthread_private.h" -#include "libc_private.h" - -static u_int64_t next_uniqueid = 1; - -#define OFF(f) offsetof(struct pthread, f) -int _thread_next_offset = OFF(tle.tqe_next); -int _thread_uniqueid_offset = OFF(uniqueid); -int _thread_state_offset = OFF(state); -int _thread_name_offset = OFF(name); -int _thread_ctx_offset = OFF(ctx); -#undef OFF - -int _thread_PS_RUNNING_value = PS_RUNNING; -int _thread_PS_DEAD_value = PS_DEAD; - -__weak_reference(_pthread_create, pthread_create); - -int -_pthread_create(pthread_t *thread, const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg) -{ - struct pthread *curthread = _get_curthread(); - struct itimerval itimer; - int f_gc = 0; - int ret = 0; - pthread_t gc_thread; - pthread_t new_thread; - pthread_attr_t pattr; - void *stack; -#if !defined(__ia64__) - u_long stackp; -#endif - - if (thread == NULL) - return(EINVAL); - - /* - * Locking functions in libc are required when there are - * threads other than the initial thread. - */ - __isthreaded = 1; - - /* Allocate memory for the thread structure: */ - if ((new_thread = (pthread_t) malloc(sizeof(struct pthread))) == NULL) { - /* Insufficient memory to create a thread: */ - ret = EAGAIN; - } else { - /* Check if default thread attributes are required: */ - if (attr == NULL || *attr == NULL) { - /* Use the default thread attributes: */ - pattr = &_pthread_attr_default; - } else { - pattr = *attr; - } - /* Check if a stack was specified in the thread attributes: */ - if ((stack = pattr->stackaddr_attr) != NULL) { - } - /* Allocate a stack: */ - else { - stack = _thread_stack_alloc(pattr->stacksize_attr, - pattr->guardsize_attr); - if (stack == NULL) { - ret = EAGAIN; - free(new_thread); - } - } - - /* Check for errors: */ - if (ret != 0) { - } else { - /* Initialise the thread structure: */ - memset(new_thread, 0, sizeof(struct pthread)); - new_thread->slice_usec = -1; - new_thread->stack = stack; - new_thread->start_routine = start_routine; - new_thread->arg = arg; - - new_thread->cancelflags = PTHREAD_CANCEL_ENABLE | - PTHREAD_CANCEL_DEFERRED; - - /* - * Write a magic value to the thread structure - * to help identify valid ones: - */ - new_thread->magic = PTHREAD_MAGIC; - - /* Initialise the thread for signals: */ - new_thread->sigmask = curthread->sigmask; - new_thread->sigmask_seqno = 0; - - /* Initialize the signal frame: */ - new_thread->curframe = NULL; - - /* Initialise the jump buffer: */ - _setjmp(new_thread->ctx.jb); - - /* - * Set up new stack frame so that it looks like it - * returned from a longjmp() to the beginning of - * _thread_start(). - */ - SET_RETURN_ADDR_JB(new_thread->ctx.jb, _thread_start); - -#if !defined(__ia64__) - stackp = (long)new_thread->stack + pattr->stacksize_attr - sizeof(double); -#if defined(__amd64__) - stackp &= ~0xFUL; -#endif - /* The stack starts high and builds down: */ - SET_STACK_JB(new_thread->ctx.jb, stackp); -#else - SET_STACK_JB(new_thread->ctx.jb, - (long)new_thread->stack, pattr->stacksize_attr); -#endif - - /* Copy the thread attributes: */ - memcpy(&new_thread->attr, pattr, sizeof(struct pthread_attr)); - - /* - * Check if this thread is to inherit the scheduling - * attributes from its parent: - */ - if (new_thread->attr.flags & PTHREAD_INHERIT_SCHED) { - /* Copy the scheduling attributes: */ - new_thread->base_priority = - curthread->base_priority & - ~PTHREAD_SIGNAL_PRIORITY; - new_thread->attr.prio = - curthread->base_priority & - ~PTHREAD_SIGNAL_PRIORITY; - new_thread->attr.sched_policy = - curthread->attr.sched_policy; - } else { - /* - * Use just the thread priority, leaving the - * other scheduling attributes as their - * default values: - */ - new_thread->base_priority = - new_thread->attr.prio; - } - new_thread->active_priority = new_thread->base_priority; - new_thread->inherited_priority = 0; - - /* Initialize joiner to NULL (no joiner): */ - new_thread->joiner = NULL; - - /* Initialize the mutex queue: */ - TAILQ_INIT(&new_thread->mutexq); - - /* Initialise hooks in the thread structure: */ - new_thread->specific = NULL; - new_thread->cleanup = NULL; - new_thread->flags = 0; - new_thread->poll_data.nfds = 0; - new_thread->poll_data.fds = NULL; - new_thread->continuation = NULL; - - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* - * Initialise the unique id which GDB uses to - * track threads. - */ - new_thread->uniqueid = next_uniqueid++; - - /* - * Check if the garbage collector thread - * needs to be started. - */ - f_gc = (TAILQ_FIRST(&_thread_list) == _thread_initial); - - /* Add the thread to the linked list of all threads: */ - TAILQ_INSERT_HEAD(&_thread_list, new_thread, tle); - - if (pattr->suspend == PTHREAD_CREATE_SUSPENDED) { - new_thread->flags |= PTHREAD_FLAGS_SUSPENDED; - new_thread->state = PS_SUSPENDED; - } else { - new_thread->state = PS_RUNNING; - PTHREAD_PRIOQ_INSERT_TAIL(new_thread); - } - - /* - * Undefer and handle pending signals, yielding - * if necessary. - */ - _thread_kern_sig_undefer(); - - /* Return a pointer to the thread structure: */ - (*thread) = new_thread; - - if (f_gc != 0) { - /* Install the scheduling timer: */ - itimer.it_interval.tv_sec = 0; - itimer.it_interval.tv_usec = _clock_res_usec; - itimer.it_value = itimer.it_interval; - if (setitimer(_ITIMER_SCHED_TIMER, &itimer, - NULL) != 0) - PANIC("Cannot set interval timer"); - } - - /* Schedule the new user thread: */ - _thread_kern_sched(NULL); - - /* - * Start a garbage collector thread - * if necessary. - */ - if (f_gc && _pthread_create(&gc_thread, NULL, - _thread_gc, NULL) != 0) - PANIC("Can't create gc thread"); - - } - } - - /* Return the status: */ - return (ret); -} - -void -_thread_start(void) -{ - struct pthread *curthread = _get_curthread(); - - /* We just left the scheduler via longjmp: */ - _thread_kern_in_sched = 0; - - /* Run the current thread's start routine with argument: */ - _pthread_exit(curthread->start_routine(curthread->arg)); - - /* This point should never be reached. */ - PANIC("Thread has resumed after exit"); -} diff --git a/lib/libc_r/uthread/uthread_detach.c b/lib/libc_r/uthread/uthread_detach.c deleted file mode 100644 index e8ac8b0..0000000 --- a/lib/libc_r/uthread/uthread_detach.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_detach, pthread_detach); - -int -_pthread_detach(pthread_t pthread) -{ - int rval = 0; - - /* Check for invalid calling parameters: */ - if (pthread == NULL || pthread->magic != PTHREAD_MAGIC) - /* Return an invalid argument error: */ - rval = EINVAL; - - /* Check if the thread has not been detached: */ - else if ((pthread->attr.flags & PTHREAD_DETACHED) == 0) { - /* Flag the thread as detached: */ - pthread->attr.flags |= PTHREAD_DETACHED; - - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Check if there is a joiner: */ - if (pthread->joiner != NULL) { - struct pthread *joiner = pthread->joiner; - - /* Make the thread runnable: */ - PTHREAD_NEW_STATE(joiner, PS_RUNNING); - - /* Set the return value for the woken thread: */ - joiner->join_status.error = ESRCH; - joiner->join_status.ret = NULL; - joiner->join_status.thread = NULL; - - /* - * Disconnect the joiner from the thread being detached: - */ - pthread->joiner = NULL; - } - - /* - * Undefer and handle pending signals, yielding if a - * scheduling signal occurred while in the critical region. - */ - _thread_kern_sig_undefer(); - } else - /* Return an error: */ - rval = EINVAL; - - /* Return the completion status: */ - return (rval); -} diff --git a/lib/libc_r/uthread/uthread_dup.c b/lib/libc_r/uthread/uthread_dup.c deleted file mode 100644 index 4b66e97..0000000 --- a/lib/libc_r/uthread/uthread_dup.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_dup, dup); - -int -_dup(int fd) -{ - int ret; - - /* Lock the file descriptor: */ - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - /* Perform the 'dup' syscall: */ - if ((ret = __sys_dup(fd)) < 0) { - } - /* Initialise the file descriptor table entry: */ - else if (_thread_fd_table_init(ret) != 0) { - /* Quietly close the file: */ - __sys_close(ret); - - /* Reset the file descriptor: */ - ret = -1; - } else { - /* - * Save the file open flags so that they can be - * checked later: - */ - _thread_fd_setflags(ret, _thread_fd_getflags(fd)); - } - - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_RDWR); - } - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_dup2.c b/lib/libc_r/uthread/uthread_dup2.c deleted file mode 100644 index 0508361..0000000 --- a/lib/libc_r/uthread/uthread_dup2.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_dup2, dup2); - -int -_dup2(int fd, int newfd) -{ - int ret; - int newfd_opened; - - /* Check if the file descriptor is out of range: */ - if (newfd < 0 || newfd >= _thread_dtablesize || - newfd == _thread_kern_pipe[0] || newfd == _thread_kern_pipe[1]) { - /* Return a bad file descriptor error: */ - errno = EBADF; - ret = -1; - } - - /* Lock the file descriptor: */ - else if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - /* Lock the file descriptor: */ - if (!(newfd_opened = (_thread_fd_table[newfd] != NULL)) || - (ret = _FD_LOCK(newfd, FD_RDWR, NULL)) == 0) { - /* Perform the 'dup2' syscall: */ - ret = __sys_dup2(fd, newfd); - if (ret >= 0) { - /* - * If we are duplicating one of the standard - * file descriptors, update its flags in the - * table of pthread stdio descriptor flags. - */ - if (ret < 3) { - _pthread_stdio_flags[ret] = - _thread_fd_table[fd]->flags; - } - /* Initialise the file descriptor table entry */ - if (_thread_fd_table_init(ret) != 0) { - /* Quietly close the file: */ - __sys_close(ret); - - /* Reset the file descriptor: */ - ret = -1; - } else { - /* - * Save the file open flags so that - * they can be checked later: - */ - _thread_fd_setflags(ret, - _thread_fd_getflags(fd)); - } - } - - /* Unlock the file descriptor: */ - if (newfd_opened) - _FD_UNLOCK(newfd, FD_RDWR); - } - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_RDWR); - } - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_equal.c b/lib/libc_r/uthread/uthread_equal.c deleted file mode 100644 index 9c21c3a..0000000 --- a/lib/libc_r/uthread/uthread_equal.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_equal, pthread_equal); - -int -_pthread_equal(pthread_t t1, pthread_t t2) -{ - /* Compare the two thread pointers: */ - return (t1 == t2); -} diff --git a/lib/libc_r/uthread/uthread_execve.c b/lib/libc_r/uthread/uthread_execve.c deleted file mode 100644 index 50db4fe..0000000 --- a/lib/libc_r/uthread/uthread_execve.c +++ /dev/null @@ -1,112 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_execve, execve); - -int -_execve(const char *name, char *const * argv, char *const * envp) -{ - struct pthread *curthread = _get_curthread(); - int flags; - int i; - int ret; - struct sigaction act; - struct sigaction oact; - struct itimerval itimer; - - /* Disable the interval timer: */ - itimer.it_interval.tv_sec = 0; - itimer.it_interval.tv_usec = 0; - itimer.it_value.tv_sec = 0; - itimer.it_value.tv_usec = 0; - setitimer(_ITIMER_SCHED_TIMER, &itimer, NULL); - - /* Close the pthread kernel pipe: */ - __sys_close(_thread_kern_pipe[0]); - __sys_close(_thread_kern_pipe[1]); - - /* - * Enter a loop to set all file descriptors to blocking - * if they were not created as non-blocking: - */ - for (i = 0; i < _thread_dtablesize; i++) { - /* Check if this file descriptor is in use: */ - if (_thread_fd_table[i] != NULL && - (_thread_fd_getflags(i) & O_NONBLOCK) == 0) { - /* Skip if the close-on-exec flag is set */ - flags = __sys_fcntl(i, F_GETFD, NULL); - if ((flags & FD_CLOEXEC) != 0) - continue; /* don't bother, no point */ - /* Get the current flags: */ - flags = __sys_fcntl(i, F_GETFL, NULL); - /* Clear the nonblocking file descriptor flag: */ - __sys_fcntl(i, F_SETFL, flags & ~O_NONBLOCK); - } - } - - /* Enter a loop to adopt the signal actions for the running thread: */ - for (i = 1; i < NSIG; i++) { - /* Check for signals which cannot be caught: */ - if (i == SIGKILL || i == SIGSTOP) { - /* Don't do anything with these signals. */ - } else { - /* Check if ignoring this signal: */ - if (_thread_sigact[i - 1].sa_handler == SIG_IGN) { - /* Continue to ignore this signal: */ - act.sa_handler = SIG_IGN; - } else { - /* Use the default handler for this signal: */ - act.sa_handler = SIG_DFL; - } - - /* Copy the mask and flags for this signal: */ - act.sa_mask = _thread_sigact[i - 1].sa_mask; - act.sa_flags = _thread_sigact[i - 1].sa_flags; - - /* Change the signal action for the process: */ - __sys_sigaction(i, &act, &oact); - } - } - - /* Set the signal mask: */ - __sys_sigprocmask(SIG_SETMASK, &curthread->sigmask, NULL); - - /* Execute the process: */ - ret = __sys_execve(name, argv, envp); - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_exit.c b/lib/libc_r/uthread/uthread_exit.c deleted file mode 100644 index 87a9dcd..0000000 --- a/lib/libc_r/uthread/uthread_exit.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -__weak_reference(_pthread_exit, pthread_exit); - -void -_exit(int status) -{ - int flags; - int i; - struct itimerval itimer; - - /* Disable the interval timer: */ - itimer.it_interval.tv_sec = 0; - itimer.it_interval.tv_usec = 0; - itimer.it_value.tv_sec = 0; - itimer.it_value.tv_usec = 0; - setitimer(_ITIMER_SCHED_TIMER, &itimer, NULL); - - /* Close the pthread kernel pipe: */ - __sys_close(_thread_kern_pipe[0]); - __sys_close(_thread_kern_pipe[1]); - - /* - * Enter a loop to set all file descriptors to blocking - * if they were not created as non-blocking: - */ - for (i = 0; i < _thread_dtablesize; i++) { - /* Check if this file descriptor is in use: */ - if (_thread_fd_table[i] != NULL && - (_thread_fd_getflags(i) & O_NONBLOCK) == 0) { - /* Get the current flags: */ - flags = __sys_fcntl(i, F_GETFL, NULL); - /* Clear the nonblocking file descriptor flag: */ - __sys_fcntl(i, F_SETFL, flags & ~O_NONBLOCK); - } - } - - /* Call the _exit syscall: */ - __sys_exit(status); -} - -void -_thread_exit(char *fname, int lineno, char *string) -{ - char s[256]; - - /* Prepare an error message string: */ - snprintf(s, sizeof(s), - "Fatal error '%s' at line %d in file %s (errno = %d)\n", - string, lineno, fname, errno); - - /* Write the string to the standard error file descriptor: */ - __sys_write(2, s, strlen(s)); - - /* Force this process to exit: */ - /* XXX - Do we want abort to be conditional on _PTHREADS_INVARIANTS? */ -#if defined(_PTHREADS_INVARIANTS) - abort(); -#else - __sys_exit(1); -#endif -} - -/* - * Only called when a thread is cancelled. It may be more useful - * to call it from pthread_exit() if other ways of asynchronous or - * abnormal thread termination can be found. - */ -void -_thread_exit_cleanup(void) -{ - struct pthread *curthread = _get_curthread(); - - /* - * POSIX states that cancellation/termination of a thread should - * not release any visible resources (such as mutexes) and that - * it is the applications responsibility. Resources that are - * internal to the threads library, including file and fd locks, - * are not visible to the application and need to be released. - */ - /* Unlock all owned fd locks: */ - _thread_fd_unlock_owned(curthread); - - /* Unlock all private mutexes: */ - _mutex_unlock_private(curthread); - - /* - * This still isn't quite correct because we don't account - * for held spinlocks (see libc/stdlib/malloc.c). - */ -} - -void -_pthread_exit(void *status) -{ - struct pthread *curthread = _get_curthread(); - pthread_t pthread; - - /* Check if this thread is already in the process of exiting: */ - if ((curthread->flags & PTHREAD_EXITING) != 0) { - char msg[128]; - snprintf(msg, sizeof(msg), "Thread %p has called pthread_exit() from a destructor. POSIX 1003.1 1996 s16.2.5.2 does not allow this!",curthread); - PANIC(msg); - } - - /* Flag this thread as exiting: */ - curthread->flags |= PTHREAD_EXITING; - - /* Save the return value: */ - curthread->ret = status; - - while (curthread->cleanup != NULL) { - pthread_cleanup_pop(1); - } - if (curthread->attr.cleanup_attr != NULL) { - curthread->attr.cleanup_attr(curthread->attr.arg_attr); - } - /* Check if there is thread specific data: */ - if (curthread->specific != NULL) { - /* Run the thread-specific data destructors: */ - _thread_cleanupspecific(); - } - - /* Free thread-specific poll_data structure, if allocated: */ - if (curthread->poll_data.fds != NULL) { - free(curthread->poll_data.fds); - curthread->poll_data.fds = NULL; - } - - /* - * Lock the garbage collector mutex to ensure that the garbage - * collector is not using the dead thread list. - */ - if (_pthread_mutex_lock(&_gc_mutex) != 0) - PANIC("Cannot lock gc mutex"); - - /* Add this thread to the list of dead threads. */ - TAILQ_INSERT_HEAD(&_dead_list, curthread, dle); - - /* - * Signal the garbage collector thread that there is something - * to clean up. - */ - if (_pthread_cond_signal(&_gc_cond) != 0) - PANIC("Cannot signal gc cond"); - - /* - * Avoid a race condition where a scheduling signal can occur - * causing the garbage collector thread to run. If this happens, - * the current thread can be cleaned out from under us. - */ - _thread_kern_sig_defer(); - - /* Unlock the garbage collector mutex: */ - if (_pthread_mutex_unlock(&_gc_mutex) != 0) - PANIC("Cannot unlock gc mutex"); - - /* Check if there is a thread joining this one: */ - if (curthread->joiner != NULL) { - pthread = curthread->joiner; - curthread->joiner = NULL; - - /* Make the joining thread runnable: */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Set the return value for the joining thread: */ - pthread->join_status.ret = curthread->ret; - pthread->join_status.error = 0; - pthread->join_status.thread = NULL; - - /* Make this thread collectable by the garbage collector. */ - PTHREAD_ASSERT(((curthread->attr.flags & PTHREAD_DETACHED) == - 0), "Cannot join a detached thread"); - curthread->attr.flags |= PTHREAD_DETACHED; - } - - /* Remove this thread from the thread list: */ - TAILQ_REMOVE(&_thread_list, curthread, tle); - - /* This thread will never be re-scheduled. */ - _thread_kern_sched_state(PS_DEAD, __FILE__, __LINE__); - - /* This point should not be reached. */ - PANIC("Dead thread has resumed"); -} diff --git a/lib/libc_r/uthread/uthread_fchflags.c b/lib/libc_r/uthread/uthread_fchflags.c deleted file mode 100644 index cd076e2..0000000 --- a/lib/libc_r/uthread/uthread_fchflags.c +++ /dev/null @@ -1,24 +0,0 @@ -/* - * David Leonard <d@openbsd.org>, 1999. Public Domain. - * - * $OpenBSD: uthread_fchflags.c,v 1.1 1999/01/08 05:42:18 d Exp $ - * $FreeBSD$ - */ - -#include <sys/stat.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_fchflags, fchflags); -int -_fchflags(int fd, u_long flags) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - ret = __sys_fchflags(fd, flags); - _FD_UNLOCK(fd, FD_WRITE); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_fchmod.c b/lib/libc_r/uthread/uthread_fchmod.c deleted file mode 100644 index ba0a35f..0000000 --- a/lib/libc_r/uthread/uthread_fchmod.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/stat.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_fchmod, fchmod); - -int -_fchmod(int fd, mode_t mode) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - ret = __sys_fchmod(fd, mode); - _FD_UNLOCK(fd, FD_WRITE); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_fchown.c b/lib/libc_r/uthread/uthread_fchown.c deleted file mode 100644 index 6990b75..0000000 --- a/lib/libc_r/uthread/uthread_fchown.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <unistd.h> -#include <dirent.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_fchown, fchown); - -int -_fchown(int fd, uid_t owner, gid_t group) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - ret = __sys_fchown(fd, owner, group); - _FD_UNLOCK(fd, FD_WRITE); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_fcntl.c b/lib/libc_r/uthread/uthread_fcntl.c deleted file mode 100644 index 81c5d7f..0000000 --- a/lib/libc_r/uthread/uthread_fcntl.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdarg.h> -#include <unistd.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__fcntl, fcntl); - -extern int __fcntl_compat(int fd, int cmd, ...); - -int -_fcntl(int fd, int cmd,...) -{ - int flags = 0; - int nonblock; - int oldfd; - int ret; - va_list ap; - - /* Lock the file descriptor: */ - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - /* Initialise the variable argument list: */ - va_start(ap, cmd); - - /* Process according to file control command type: */ - switch (cmd) { - /* Duplicate a file descriptor: */ - case F_DUPFD: - /* - * Get the file descriptor that the caller wants to - * use: - */ - oldfd = va_arg(ap, int); - - /* Initialise the file descriptor table entry: */ - if ((ret = __sys_fcntl(fd, cmd, oldfd)) < 0) { - } - /* Initialise the file descriptor table entry: */ - else if (_thread_fd_table_init(ret) != 0) { - /* Quietly close the file: */ - __sys_close(ret); - - /* Reset the file descriptor: */ - ret = -1; - } else { - /* - * Save the file open flags so that they can - * be checked later: - */ - _thread_fd_setflags(ret, - _thread_fd_getflags(fd)); - } - break; - case F_SETFD: - flags = va_arg(ap, int); - ret = __sys_fcntl(fd, cmd, flags); - break; - case F_GETFD: - ret = __sys_fcntl(fd, cmd, 0); - break; - case F_GETFL: - ret = _thread_fd_getflags(fd); - break; - case F_SETFL: - /* - * Get the file descriptor flags passed by the - * caller: - */ - flags = va_arg(ap, int); - - /* - * Check if the user wants a non-blocking file - * descriptor: - */ - nonblock = flags & O_NONBLOCK; - - /* Set the file descriptor flags: */ - if ((ret = __sys_fcntl(fd, cmd, flags | O_NONBLOCK)) != 0) { - - /* Get the flags so that we behave like the kernel: */ - } else if ((flags = __sys_fcntl(fd, - F_GETFL, 0)) == -1) { - /* Error getting flags: */ - ret = -1; - - /* - * Check if the file descriptor is non-blocking - * with respect to the user: - */ - } else if (nonblock) - /* A non-blocking descriptor: */ - _thread_fd_setflags(fd, flags | O_NONBLOCK); - else - /* Save the flags: */ - _thread_fd_setflags(fd, flags & ~O_NONBLOCK); - break; - default: - /* Might want to make va_arg use a union */ - ret = __fcntl_compat(fd, cmd, va_arg(ap, void *)); - break; - } - - /* Free variable arguments: */ - va_end(ap); - - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_RDWR); - } - /* Return the completion status: */ - return (ret); -} - -int -__fcntl(int fd, int cmd,...) -{ - int ret; - va_list ap; - - _thread_enter_cancellation_point(); - - va_start(ap, cmd); - switch (cmd) { - case F_DUPFD: - case F_SETFD: - case F_SETFL: - ret = _fcntl(fd, cmd, va_arg(ap, int)); - break; - case F_GETFD: - case F_GETFL: - ret = _fcntl(fd, cmd); - break; - default: - ret = _fcntl(fd, cmd, va_arg(ap, void *)); - } - va_end(ap); - - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_fd.c b/lib/libc_r/uthread/uthread_fd.c deleted file mode 100644 index 4258323..0000000 --- a/lib/libc_r/uthread/uthread_fd.c +++ /dev/null @@ -1,1054 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <errno.h> -#include <fcntl.h> -#include <stdlib.h> -#include <string.h> -#include <pthread.h> -#include "pthread_private.h" - -#define FDQ_INSERT(q,p) \ -do { \ - TAILQ_INSERT_TAIL(q,p,qe); \ - p->flags |= PTHREAD_FLAGS_IN_FDQ; \ -} while (0) - -#define FDQ_REMOVE(q,p) \ -do { \ - if ((p->flags & PTHREAD_FLAGS_IN_FDQ) != 0) { \ - TAILQ_REMOVE(q,p,qe); \ - p->flags &= ~PTHREAD_FLAGS_IN_FDQ; \ - } \ -} while (0) - - -/* Static variables: */ -static spinlock_t fd_table_lock = _SPINLOCK_INITIALIZER; - -/* Prototypes: */ -#ifdef _FDLOCKS_ENABLED -static inline pthread_t fd_next_reader(int fd); -static inline pthread_t fd_next_writer(int fd); -#endif - - -/* - * This function *must* return -1 and set the thread specific errno - * as a system call. This is because the error return from this - * function is propagated directly back from thread-wrapped system - * calls. - */ - -int -_thread_fd_table_init(int fd) -{ - int ret = 0; - struct fd_table_entry *entry; - int saved_errno; - - if (_thread_initial == NULL) - _thread_init(); - - /* Check if the file descriptor is out of range: */ - if (fd < 0 || fd >= _thread_dtablesize) { - /* Return a bad file descriptor error: */ - errno = EBADF; - ret = -1; - } - - /* - * Check if memory has already been allocated for this file - * descriptor: - */ - else if (_thread_fd_table[fd] != NULL) { - /* Memory has already been allocated. */ - - /* Allocate memory for the file descriptor table entry: */ - } else if ((entry = (struct fd_table_entry *) - malloc(sizeof(struct fd_table_entry))) == NULL) { - /* Return an insufficient memory error: */ - errno = ENOMEM; - ret = -1; - } else { - /* Initialise the file locks: */ - memset(&entry->lock, 0, sizeof(entry->lock)); - entry->r_owner = NULL; - entry->w_owner = NULL; - entry->r_fname = NULL; - entry->w_fname = NULL; - entry->r_lineno = 0; - entry->w_lineno = 0; - entry->r_lockcount = 0; - entry->w_lockcount = 0; - - /* Initialise the read/write queues: */ - TAILQ_INIT(&entry->r_queue); - TAILQ_INIT(&entry->w_queue); - - /* Get the flags for the file: */ - if (((fd >= 3) || (_pthread_stdio_flags[fd] == -1)) && - (entry->flags = __sys_fcntl(fd, F_GETFL, 0)) == -1) { - ret = -1; - } - else { - /* Check if a stdio descriptor: */ - if ((fd < 3) && (_pthread_stdio_flags[fd] != -1)) - /* - * Use the stdio flags read by - * _pthread_init() to avoid - * mistaking the non-blocking - * flag that, when set on one - * stdio fd, is set on all stdio - * fds. - */ - entry->flags = _pthread_stdio_flags[fd]; - - /* - * Make the file descriptor non-blocking. - * This might fail if the device driver does - * not support non-blocking calls, or if the - * driver is naturally non-blocking. - */ - saved_errno = errno; - __sys_fcntl(fd, F_SETFL, - entry->flags | O_NONBLOCK); - errno = saved_errno; - - /* Lock the file descriptor table: */ - _SPINLOCK(&fd_table_lock); - - /* - * Check if another thread allocated the - * file descriptor entry while this thread - * was doing the same thing. The table wasn't - * kept locked during this operation because - * it has the potential to recurse. - */ - if (_thread_fd_table[fd] == NULL) { - /* This thread wins: */ - _thread_fd_table[fd] = entry; - entry = NULL; - } - - /* Unlock the file descriptor table: */ - _SPINUNLOCK(&fd_table_lock); - } - - /* - * Check if another thread initialised the table entry - * before this one could: - */ - if (entry != NULL) - /* - * Throw away the table entry that this thread - * prepared. The other thread wins. - */ - free(entry); - } - - /* Return the completion status: */ - return (ret); -} - -int -_thread_fd_getflags(int fd) -{ - if (_thread_fd_table[fd] != NULL) - return (_thread_fd_table[fd]->flags); - else - return (0); -} - -void -_thread_fd_setflags(int fd, int flags) -{ - if (_thread_fd_table[fd] != NULL) - _thread_fd_table[fd]->flags = flags; -} - -#ifdef _FDLOCKS_ENABLED -void -_thread_fd_unlock(int fd, int lock_type) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - /* - * Check that the file descriptor table is initialised for this - * entry: - */ - if ((ret = _thread_fd_table_init(fd)) == 0) { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* - * Lock the file descriptor table entry to prevent - * other threads for clashing with the current - * thread's accesses: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - /* Check if the running thread owns the read lock: */ - if (_thread_fd_table[fd]->r_owner == curthread) { - /* Check the file descriptor and lock types: */ - if (lock_type == FD_READ || lock_type == FD_RDWR) { - /* - * Decrement the read lock count for the - * running thread: - */ - _thread_fd_table[fd]->r_lockcount--; - - /* - * Check if the running thread still has read - * locks on this file descriptor: - */ - if (_thread_fd_table[fd]->r_lockcount != 0) { - } - /* - * Get the next thread in the queue for a - * read lock on this file descriptor: - */ - else if ((_thread_fd_table[fd]->r_owner = fd_next_reader(fd)) == NULL) { - } else { - /* Remove this thread from the queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, - _thread_fd_table[fd]->r_owner); - - /* - * Set the state of the new owner of - * the thread to running: - */ - PTHREAD_NEW_STATE(_thread_fd_table[fd]->r_owner,PS_RUNNING); - - /* - * Reset the number of read locks. - * This will be incremented by the - * new owner of the lock when it sees - * that it has the lock. - */ - _thread_fd_table[fd]->r_lockcount = 0; - } - } - } - /* Check if the running thread owns the write lock: */ - if (_thread_fd_table[fd]->w_owner == curthread) { - /* Check the file descriptor and lock types: */ - if (lock_type == FD_WRITE || lock_type == FD_RDWR) { - /* - * Decrement the write lock count for the - * running thread: - */ - _thread_fd_table[fd]->w_lockcount--; - - /* - * Check if the running thread still has - * write locks on this file descriptor: - */ - if (_thread_fd_table[fd]->w_lockcount != 0) { - } - /* - * Get the next thread in the queue for a - * write lock on this file descriptor: - */ - else if ((_thread_fd_table[fd]->w_owner = fd_next_writer(fd)) == NULL) { - } else { - /* Remove this thread from the queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, - _thread_fd_table[fd]->w_owner); - - /* - * Set the state of the new owner of - * the thread to running: - */ - PTHREAD_NEW_STATE(_thread_fd_table[fd]->w_owner,PS_RUNNING); - - /* - * Reset the number of write locks. - * This will be incremented by the - * new owner of the lock when it - * sees that it has the lock. - */ - _thread_fd_table[fd]->w_lockcount = 0; - } - } - } - - /* Unlock the file descriptor table entry: */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } -} - -int -_thread_fd_lock(int fd, int lock_type, struct timespec * timeout) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - /* - * Check that the file descriptor table is initialised for this - * entry: - */ - if ((ret = _thread_fd_table_init(fd)) == 0) { - /* Clear the interrupted flag: */ - curthread->interrupted = 0; - - /* - * Lock the file descriptor table entry to prevent - * other threads for clashing with the current - * thread's accesses: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - /* Check the file descriptor and lock types: */ - if (lock_type == FD_READ || lock_type == FD_RDWR) { - /* - * Wait for the file descriptor to be locked - * for read for the current thread: - */ - while ((_thread_fd_table[fd]->r_owner != curthread) && - (curthread->interrupted == 0)) { - /* - * Check if the file descriptor is locked by - * another thread: - */ - if (_thread_fd_table[fd]->r_owner != NULL) { - /* - * Another thread has locked the file - * descriptor for read, so join the - * queue of threads waiting for a - * read lock on this file descriptor: - */ - FDQ_INSERT(&_thread_fd_table[fd]->r_queue, curthread); - - /* - * Save the file descriptor details - * in the thread structure for the - * running thread: - */ - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(timeout); - - /* - * Unlock the file descriptor - * table entry: - */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Schedule this thread to wait on - * the read lock. It will only be - * woken when it becomes the next in - * the queue and is granted access - * to the lock by the thread - * that is unlocking the file - * descriptor. - */ - _thread_kern_sched_state(PS_FDLR_WAIT, __FILE__, __LINE__); - - /* - * Lock the file descriptor - * table entry again: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - if (curthread->interrupted != 0) { - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, - curthread); - } - } else { - /* - * The running thread now owns the - * read lock on this file descriptor: - */ - _thread_fd_table[fd]->r_owner = curthread; - - /* - * Reset the number of read locks for - * this file descriptor: - */ - _thread_fd_table[fd]->r_lockcount = 0; - } - } - - if (_thread_fd_table[fd]->r_owner == curthread) - /* Increment the read lock count: */ - _thread_fd_table[fd]->r_lockcount++; - } - - /* Check the file descriptor and lock types: */ - if (curthread->interrupted == 0 && - (lock_type == FD_WRITE || lock_type == FD_RDWR)) { - /* - * Wait for the file descriptor to be locked - * for write for the current thread: - */ - while ((_thread_fd_table[fd]->w_owner != curthread) && - (curthread->interrupted == 0)) { - /* - * Check if the file descriptor is locked by - * another thread: - */ - if (_thread_fd_table[fd]->w_owner != NULL) { - /* - * Another thread has locked the file - * descriptor for write, so join the - * queue of threads waiting for a - * write lock on this file - * descriptor: - */ - FDQ_INSERT(&_thread_fd_table[fd]->w_queue, curthread); - - /* - * Save the file descriptor details - * in the thread structure for the - * running thread: - */ - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(timeout); - - /* - * Unlock the file descriptor - * table entry: - */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Schedule this thread to wait on - * the write lock. It will only be - * woken when it becomes the next in - * the queue and is granted access to - * the lock by the thread that is - * unlocking the file descriptor. - */ - _thread_kern_sched_state(PS_FDLW_WAIT, __FILE__, __LINE__); - - /* - * Lock the file descriptor - * table entry again: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - if (curthread->interrupted != 0) { - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, - curthread); - } - } else { - /* - * The running thread now owns the - * write lock on this file - * descriptor: - */ - _thread_fd_table[fd]->w_owner = curthread; - - /* - * Reset the number of write locks - * for this file descriptor: - */ - _thread_fd_table[fd]->w_lockcount = 0; - } - } - - if (_thread_fd_table[fd]->w_owner == curthread) - /* Increment the write lock count: */ - _thread_fd_table[fd]->w_lockcount++; - } - - /* Unlock the file descriptor table entry: */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - if (curthread->interrupted != 0) { - ret = -1; - errno = EINTR; - if (curthread->continuation != NULL) - curthread->continuation((void *)curthread); - } - } - - /* Return the completion status: */ - return (ret); -} - -void -_thread_fd_unlock_debug(int fd, int lock_type, char *fname, int lineno) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - /* - * Check that the file descriptor table is initialised for this - * entry: - */ - if ((ret = _thread_fd_table_init(fd)) == 0) { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* - * Lock the file descriptor table entry to prevent - * other threads for clashing with the current - * thread's accesses: - */ - _spinlock_debug(&_thread_fd_table[fd]->lock, fname, lineno); - - /* Check if the running thread owns the read lock: */ - if (_thread_fd_table[fd]->r_owner == curthread) { - /* Check the file descriptor and lock types: */ - if (lock_type == FD_READ || lock_type == FD_RDWR) { - /* - * Decrement the read lock count for the - * running thread: - */ - _thread_fd_table[fd]->r_lockcount--; - - /* - * Check if the running thread still has read - * locks on this file descriptor: - */ - if (_thread_fd_table[fd]->r_lockcount != 0) { - } - /* - * Get the next thread in the queue for a - * read lock on this file descriptor: - */ - else if ((_thread_fd_table[fd]->r_owner = fd_next_reader(fd)) == NULL) { - } else { - /* Remove this thread from the queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, - _thread_fd_table[fd]->r_owner); - - /* - * Set the state of the new owner of - * the thread to running: - */ - PTHREAD_NEW_STATE(_thread_fd_table[fd]->r_owner,PS_RUNNING); - - /* - * Reset the number of read locks. - * This will be incremented by the - * new owner of the lock when it sees - * that it has the lock. - */ - _thread_fd_table[fd]->r_lockcount = 0; - } - } - } - /* Check if the running thread owns the write lock: */ - if (_thread_fd_table[fd]->w_owner == curthread) { - /* Check the file descriptor and lock types: */ - if (lock_type == FD_WRITE || lock_type == FD_RDWR) { - /* - * Decrement the write lock count for the - * running thread: - */ - _thread_fd_table[fd]->w_lockcount--; - - /* - * Check if the running thread still has - * write locks on this file descriptor: - */ - if (_thread_fd_table[fd]->w_lockcount != 0) { - } - /* - * Get the next thread in the queue for a - * write lock on this file descriptor: - */ - else if ((_thread_fd_table[fd]->w_owner = fd_next_writer(fd)) == NULL) { - } else { - /* Remove this thread from the queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, - _thread_fd_table[fd]->w_owner); - - /* - * Set the state of the new owner of - * the thread to running: - */ - PTHREAD_NEW_STATE(_thread_fd_table[fd]->w_owner,PS_RUNNING); - - /* - * Reset the number of write locks. - * This will be incremented by the - * new owner of the lock when it - * sees that it has the lock. - */ - _thread_fd_table[fd]->w_lockcount = 0; - } - } - } - - /* Unlock the file descriptor table entry: */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary. - */ - _thread_kern_sig_undefer(); - } -} - -int -_thread_fd_lock_debug(int fd, int lock_type, struct timespec * timeout, - char *fname, int lineno) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - /* - * Check that the file descriptor table is initialised for this - * entry: - */ - if ((ret = _thread_fd_table_init(fd)) == 0) { - /* Clear the interrupted flag: */ - curthread->interrupted = 0; - - /* - * Lock the file descriptor table entry to prevent - * other threads for clashing with the current - * thread's accesses: - */ - _spinlock_debug(&_thread_fd_table[fd]->lock, fname, lineno); - - /* Check the file descriptor and lock types: */ - if (lock_type == FD_READ || lock_type == FD_RDWR) { - /* - * Wait for the file descriptor to be locked - * for read for the current thread: - */ - while ((_thread_fd_table[fd]->r_owner != curthread) && - (curthread->interrupted == 0)) { - /* - * Check if the file descriptor is locked by - * another thread: - */ - if (_thread_fd_table[fd]->r_owner != NULL) { - /* - * Another thread has locked the file - * descriptor for read, so join the - * queue of threads waiting for a - * read lock on this file descriptor: - */ - FDQ_INSERT(&_thread_fd_table[fd]->r_queue, curthread); - - /* - * Save the file descriptor details - * in the thread structure for the - * running thread: - */ - curthread->data.fd.fd = fd; - curthread->data.fd.branch = lineno; - curthread->data.fd.fname = fname; - - /* Set the timeout: */ - _thread_kern_set_timeout(timeout); - - /* - * Unlock the file descriptor - * table entry: - */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Schedule this thread to wait on - * the read lock. It will only be - * woken when it becomes the next in - * the queue and is granted access - * to the lock by the thread - * that is unlocking the file - * descriptor. - */ - _thread_kern_sched_state(PS_FDLR_WAIT, __FILE__, __LINE__); - - /* - * Lock the file descriptor - * table entry again: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - if (curthread->interrupted != 0) { - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, - curthread); - } - } else { - /* - * The running thread now owns the - * read lock on this file descriptor: - */ - _thread_fd_table[fd]->r_owner = curthread; - - /* - * Reset the number of read locks for - * this file descriptor: - */ - _thread_fd_table[fd]->r_lockcount = 0; - - /* - * Save the source file details for - * debugging: - */ - _thread_fd_table[fd]->r_fname = fname; - _thread_fd_table[fd]->r_lineno = lineno; - } - } - - if (_thread_fd_table[fd]->r_owner == curthread) - /* Increment the read lock count: */ - _thread_fd_table[fd]->r_lockcount++; - } - - /* Check the file descriptor and lock types: */ - if (curthread->interrupted == 0 && - (lock_type == FD_WRITE || lock_type == FD_RDWR)) { - /* - * Wait for the file descriptor to be locked - * for write for the current thread: - */ - while ((_thread_fd_table[fd]->w_owner != curthread) && - (curthread->interrupted == 0)) { - /* - * Check if the file descriptor is locked by - * another thread: - */ - if (_thread_fd_table[fd]->w_owner != NULL) { - /* - * Another thread has locked the file - * descriptor for write, so join the - * queue of threads waiting for a - * write lock on this file - * descriptor: - */ - FDQ_INSERT(&_thread_fd_table[fd]->w_queue, curthread); - - /* - * Save the file descriptor details - * in the thread structure for the - * running thread: - */ - curthread->data.fd.fd = fd; - curthread->data.fd.branch = lineno; - curthread->data.fd.fname = fname; - - /* Set the timeout: */ - _thread_kern_set_timeout(timeout); - - /* - * Unlock the file descriptor - * table entry: - */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Schedule this thread to wait on - * the write lock. It will only be - * woken when it becomes the next in - * the queue and is granted access to - * the lock by the thread that is - * unlocking the file descriptor. - */ - _thread_kern_sched_state(PS_FDLW_WAIT, __FILE__, __LINE__); - - /* - * Lock the file descriptor - * table entry again: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - if (curthread->interrupted != 0) { - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, - curthread); - } - } else { - /* - * The running thread now owns the - * write lock on this file - * descriptor: - */ - _thread_fd_table[fd]->w_owner = curthread; - - /* - * Reset the number of write locks - * for this file descriptor: - */ - _thread_fd_table[fd]->w_lockcount = 0; - - /* - * Save the source file details for - * debugging: - */ - _thread_fd_table[fd]->w_fname = fname; - _thread_fd_table[fd]->w_lineno = lineno; - } - } - - if (_thread_fd_table[fd]->w_owner == curthread) - /* Increment the write lock count: */ - _thread_fd_table[fd]->w_lockcount++; - } - - /* Unlock the file descriptor table entry: */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - if (curthread->interrupted != 0) { - ret = -1; - errno = EINTR; - if (curthread->continuation != NULL) - curthread->continuation((void *)curthread); - } - } - - /* Return the completion status: */ - return (ret); -} - -void -_thread_fd_unlock_owned(pthread_t pthread) -{ - int fd; - - for (fd = 0; fd < _thread_dtablesize; fd++) { - if ((_thread_fd_table[fd] != NULL) && - ((_thread_fd_table[fd]->r_owner == pthread) || - (_thread_fd_table[fd]->w_owner == pthread))) { - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* - * Lock the file descriptor table entry to prevent - * other threads for clashing with the current - * thread's accesses: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - /* Check if the thread owns the read lock: */ - if (_thread_fd_table[fd]->r_owner == pthread) { - /* Clear the read lock count: */ - _thread_fd_table[fd]->r_lockcount = 0; - - /* - * Get the next thread in the queue for a - * read lock on this file descriptor: - */ - if ((_thread_fd_table[fd]->r_owner = fd_next_reader(fd)) != NULL) { - /* Remove this thread from the queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, - _thread_fd_table[fd]->r_owner); - - /* - * Set the state of the new owner of - * the thread to running: - */ - PTHREAD_NEW_STATE(_thread_fd_table[fd]->r_owner,PS_RUNNING); - } - } - - /* Check if the thread owns the write lock: */ - if (_thread_fd_table[fd]->w_owner == pthread) { - /* Clear the write lock count: */ - _thread_fd_table[fd]->w_lockcount = 0; - - /* - * Get the next thread in the queue for a - * write lock on this file descriptor: - */ - if ((_thread_fd_table[fd]->w_owner = fd_next_writer(fd)) != NULL) { - /* Remove this thread from the queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, - _thread_fd_table[fd]->w_owner); - - /* - * Set the state of the new owner of - * the thread to running: - */ - PTHREAD_NEW_STATE(_thread_fd_table[fd]->w_owner,PS_RUNNING); - - } - } - - /* Unlock the file descriptor table entry: */ - _SPINUNLOCK(&_thread_fd_table[fd]->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary. - */ - _thread_kern_sig_undefer(); - } - } -} - -void -_fd_lock_backout(pthread_t pthread) -{ - int fd; - - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - switch (pthread->state) { - - case PS_FDLR_WAIT: - fd = pthread->data.fd.fd; - - /* - * Lock the file descriptor table entry to prevent - * other threads for clashing with the current - * thread's accesses: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - /* Remove the thread from the waiting queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, pthread); - break; - - case PS_FDLW_WAIT: - fd = pthread->data.fd.fd; - - /* - * Lock the file descriptor table entry to prevent - * other threads from clashing with the current - * thread's accesses: - */ - _SPINLOCK(&_thread_fd_table[fd]->lock); - - /* Remove the thread from the waiting queue: */ - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, pthread); - break; - - default: - break; - } - - /* - * Undefer and handle pending signals, yielding if - * necessary. - */ - _thread_kern_sig_undefer(); -} - -static inline pthread_t -fd_next_reader(int fd) -{ - pthread_t pthread; - - while (((pthread = TAILQ_FIRST(&_thread_fd_table[fd]->r_queue)) != NULL) && - (pthread->interrupted != 0)) { - /* - * This thread has either been interrupted by a signal or - * it has been canceled. Remove it from the queue. - */ - FDQ_REMOVE(&_thread_fd_table[fd]->r_queue, pthread); - } - - return (pthread); -} - -static inline pthread_t -fd_next_writer(int fd) -{ - pthread_t pthread; - - while (((pthread = TAILQ_FIRST(&_thread_fd_table[fd]->w_queue)) != NULL) && - (pthread->interrupted != 0)) { - /* - * This thread has either been interrupted by a signal or - * it has been canceled. Remove it from the queue. - */ - FDQ_REMOVE(&_thread_fd_table[fd]->w_queue, pthread); - } - - return (pthread); -} - -#else - -void -_thread_fd_unlock(int fd, int lock_type) -{ -} - -int -_thread_fd_lock(int fd, int lock_type, struct timespec * timeout) -{ - /* - * Insure that the file descriptor table is initialized for this - * entry: - */ - return (_thread_fd_table_init(fd)); -} - -void -_thread_fd_unlock_debug(int fd, int lock_type, char *fname, int lineno) -{ -} - -int -_thread_fd_lock_debug(int fd, int lock_type, struct timespec * timeout, - char *fname, int lineno) -{ - /* - * Insure that the file descriptor table is initialized for this - * entry: - */ - return (_thread_fd_table_init(fd)); -} - -void -_thread_fd_unlock_owned(pthread_t pthread) -{ -} - -void -_fd_lock_backout(pthread_t pthread) -{ -} - -#endif diff --git a/lib/libc_r/uthread/uthread_file.c b/lib/libc_r/uthread/uthread_file.c deleted file mode 100644 index cbedbc7..0000000 --- a/lib/libc_r/uthread/uthread_file.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by John Birrell. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - * POSIX stdio FILE locking functions. These assume that the locking - * is only required at FILE structure level, not at file descriptor - * level too. - * - */ -#include <stdio.h> -#include <pthread.h> -#include "pthread_private.h" - -extern void _flockfile(FILE *); - -void -_flockfile_debug(FILE *fp, char *fname, int lineno) -{ - pthread_t curthread = _pthread_self(); - - curthread->lineno = lineno; - curthread->fname = fname; - _flockfile(fp); -} diff --git a/lib/libc_r/uthread/uthread_find_thread.c b/lib/libc_r/uthread/uthread_find_thread.c deleted file mode 100644 index 299d53c..0000000 --- a/lib/libc_r/uthread/uthread_find_thread.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -/* Find a thread in the linked list of active threads: */ -int -_find_thread(pthread_t pthread) -{ - pthread_t pthread1; - - /* Check if the caller has specified an invalid thread: */ - if (pthread == NULL || pthread->magic != PTHREAD_MAGIC) - /* Invalid thread: */ - return(EINVAL); - - /* - * Defer signals to protect the thread list from access - * by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Search for the specified thread: */ - TAILQ_FOREACH(pthread1, &_thread_list, tle) { - if (pthread == pthread1) - break; - } - - /* Undefer and handle pending signals, yielding if necessary: */ - _thread_kern_sig_undefer(); - - /* Return zero if the thread exists: */ - return ((pthread1 != NULL) ? 0:ESRCH); -} diff --git a/lib/libc_r/uthread/uthread_flock.c b/lib/libc_r/uthread/uthread_flock.c deleted file mode 100644 index 388c025..0000000 --- a/lib/libc_r/uthread/uthread_flock.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/file.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_flock, flock); - -int -_flock(int fd, int operation) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_flock(fd, operation); - _FD_UNLOCK(fd, FD_RDWR); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_fork.c b/lib/libc_r/uthread/uthread_fork.c deleted file mode 100644 index a24ad98..0000000 --- a/lib/libc_r/uthread/uthread_fork.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/param.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -static void free_thread_resources(struct pthread *thread); - -__weak_reference(_fork, fork); - -pid_t -_fork(void) -{ - struct pthread *curthread = _get_curthread(); - struct pthread_atfork *af; - int i, flags, use_deadlist = 0; - pid_t ret; - pthread_t pthread; - pthread_t pthread_save; - - /* - * Defer signals to protect the scheduling queues from access - * by the signal handler: - */ - _thread_kern_sig_defer(); - - _pthread_mutex_lock(&_atfork_mutex); - - /* Run down atfork prepare handlers. */ - TAILQ_FOREACH_REVERSE(af, &_atfork_list, atfork_head, qe) { - if (af->prepare != NULL) - af->prepare(); - } - - /* Fork a new process: */ - if ((ret = __sys_fork()) != 0) { - /* Run down atfork parent handlers. */ - TAILQ_FOREACH(af, &_atfork_list, qe) { - if (af->parent != NULL) - af->parent(); - } - _pthread_mutex_unlock(&_atfork_mutex); - - } else { - /* Close the pthread kernel pipe: */ - __sys_close(_thread_kern_pipe[0]); - __sys_close(_thread_kern_pipe[1]); - - /* Reset signals pending for the running thread: */ - sigemptyset(&curthread->sigpend); - - /* - * Create a pipe that is written to by the signal handler to - * prevent signals being missed in calls to - * __sys_select: - */ - if (__sys_pipe(_thread_kern_pipe) != 0) { - /* Cannot create pipe, so abort: */ - PANIC("Cannot create pthread kernel pipe for forked process"); - } - /* Get the flags for the read pipe: */ - else if ((flags = __sys_fcntl(_thread_kern_pipe[0], F_GETFL, NULL)) == -1) { - /* Abort this application: */ - abort(); - } - /* Make the read pipe non-blocking: */ - else if (__sys_fcntl(_thread_kern_pipe[0], F_SETFL, flags | O_NONBLOCK) == -1) { - /* Abort this application: */ - abort(); - } - /* Get the flags for the write pipe: */ - else if ((flags = __sys_fcntl(_thread_kern_pipe[1], F_GETFL, NULL)) == -1) { - /* Abort this application: */ - abort(); - } - /* Make the write pipe non-blocking: */ - else if (__sys_fcntl(_thread_kern_pipe[1], F_SETFL, flags | O_NONBLOCK) == -1) { - /* Abort this application: */ - abort(); - } - /* Reinitialize the GC mutex: */ - else if (_mutex_reinit(&_gc_mutex) != 0) { - /* Abort this application: */ - PANIC("Cannot initialize GC mutex for forked process"); - } - /* Reinitialize the GC condition variable: */ - else if (_cond_reinit(&_gc_cond) != 0) { - /* Abort this application: */ - PANIC("Cannot initialize GC condvar for forked process"); - } - /* Initialize the ready queue: */ - else if (_pq_init(&_readyq) != 0) { - /* Abort this application: */ - PANIC("Cannot initialize priority ready queue."); - } else { - /* - * Enter a loop to remove all threads other than - * the running thread from the thread list: - */ - if ((pthread = TAILQ_FIRST(&_thread_list)) == NULL) { - pthread = TAILQ_FIRST(&_dead_list); - use_deadlist = 1; - } - while (pthread != NULL) { - /* Save the thread to be freed: */ - pthread_save = pthread; - - /* - * Advance to the next thread before - * destroying the current thread: - */ - if (use_deadlist != 0) - pthread = TAILQ_NEXT(pthread, dle); - else - pthread = TAILQ_NEXT(pthread, tle); - - /* Make sure this isn't the running thread: */ - if (pthread_save != curthread) { - /* - * Remove this thread from the - * appropriate list: - */ - if (use_deadlist != 0) - TAILQ_REMOVE(&_thread_list, - pthread_save, dle); - else - TAILQ_REMOVE(&_thread_list, - pthread_save, tle); - - free_thread_resources(pthread_save); - } - - /* - * Switch to the deadlist when the active - * thread list has been consumed. This can't - * be at the top of the loop because it is - * used to determine to which list the thread - * belongs (when it is removed from the list). - */ - if (pthread == NULL) { - pthread = TAILQ_FIRST(&_dead_list); - use_deadlist = 1; - } - } - - /* Treat the current thread as the initial thread: */ - _thread_initial = curthread; - - /* Re-init the dead thread list: */ - TAILQ_INIT(&_dead_list); - - /* Re-init the waiting and work queues. */ - TAILQ_INIT(&_waitingq); - TAILQ_INIT(&_workq); - - /* Re-init the threads mutex queue: */ - TAILQ_INIT(&curthread->mutexq); - - /* No spinlocks yet: */ - _spinblock_count = 0; - - /* Don't queue signals yet: */ - _queue_signals = 0; - - /* Initialize the scheduling switch hook routine: */ - _sched_switch_hook = NULL; - - /* Clear out any locks in the file descriptor table: */ - for (i = 0; i < _thread_dtablesize; i++) { - if (_thread_fd_table[i] != NULL) { - /* Initialise the file locks: */ - memset(&_thread_fd_table[i]->lock, 0, - sizeof(_thread_fd_table[i]->lock)); - _thread_fd_table[i]->r_owner = NULL; - _thread_fd_table[i]->w_owner = NULL; - _thread_fd_table[i]->r_fname = NULL; - _thread_fd_table[i]->w_fname = NULL; - _thread_fd_table[i]->r_lineno = 0;; - _thread_fd_table[i]->w_lineno = 0;; - _thread_fd_table[i]->r_lockcount = 0;; - _thread_fd_table[i]->w_lockcount = 0;; - - /* Initialise the read/write queues: */ - TAILQ_INIT(&_thread_fd_table[i]->r_queue); - TAILQ_INIT(&_thread_fd_table[i]->w_queue); - } - } - } - /* Run down atfork child handlers. */ - TAILQ_FOREACH(af, &_atfork_list, qe) { - if (af->child != NULL) - af->child(); - } - _mutex_reinit(&_atfork_mutex); - } - - - /* - * Undefer and handle pending signals, yielding if necessary: - */ - _thread_kern_sig_undefer(); - - /* Return the process ID: */ - return (ret); -} - -static void -free_thread_resources(struct pthread *thread) -{ - - /* Check to see if the threads library allocated the stack. */ - if ((thread->attr.stackaddr_attr == NULL) && (thread->stack != NULL)) { - /* - * Since this is being called from fork, we are currently single - * threaded so there is no need to protect the call to - * _thread_stack_free() with _gc_mutex. - */ - _thread_stack_free(thread->stack, thread->attr.stacksize_attr, - thread->attr.guardsize_attr); - } - - if (thread->specific != NULL) - free(thread->specific); - - if (thread->poll_data.fds != NULL) - free(thread->poll_data.fds); - - free(thread); -} diff --git a/lib/libc_r/uthread/uthread_fpathconf.c b/lib/libc_r/uthread/uthread_fpathconf.c deleted file mode 100644 index 97e1d65..0000000 --- a/lib/libc_r/uthread/uthread_fpathconf.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 2000 Maxim Sobolev <sobomax@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_fpathconf, fpathconf); - -long -_fpathconf(int fd, int name) -{ - long ret; - - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - ret = __sys_fpathconf(fd, name); - _FD_UNLOCK(fd, FD_READ); - } - return ret; -} - diff --git a/lib/libc_r/uthread/uthread_fstat.c b/lib/libc_r/uthread/uthread_fstat.c deleted file mode 100644 index d52e4aa..0000000 --- a/lib/libc_r/uthread/uthread_fstat.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/param.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_fstat, fstat); - -int -_fstat(int fd, struct stat * buf) -{ - int ret; - - /* Lock the file descriptor for read: */ - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - /* Get the file status: */ - ret = __sys_fstat(fd, buf); - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_READ); - } - return (ret); -} - diff --git a/lib/libc_r/uthread/uthread_fstatfs.c b/lib/libc_r/uthread/uthread_fstatfs.c deleted file mode 100644 index c53c4a5..0000000 --- a/lib/libc_r/uthread/uthread_fstatfs.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/param.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_fstatfs, fstatfs); - -int -_fstatfs(int fd, struct statfs * buf) -{ - int ret; - - /* Lock the file descriptor for read: */ - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - /* Get the file system status: */ - ret = __sys_fstatfs(fd, buf); - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_READ); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_fsync.c b/lib/libc_r/uthread/uthread_fsync.c deleted file mode 100644 index 46ccbfe..0000000 --- a/lib/libc_r/uthread/uthread_fsync.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__fsync, fsync); - -int -_fsync(int fd) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_fsync(fd); - _FD_UNLOCK(fd, FD_RDWR); - } - return (ret); -} - -int -__fsync(int fd) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _fsync(fd); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_gc.c b/lib/libc_r/uthread/uthread_gc.c deleted file mode 100644 index c5bf59f..0000000 --- a/lib/libc_r/uthread/uthread_gc.c +++ /dev/null @@ -1,218 +0,0 @@ -/* - * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - * Garbage collector thread. Frees memory allocated for dead threads. - * - */ -#include <sys/param.h> -#include <errno.h> -#include <time.h> -#include <stdlib.h> -#include <unistd.h> -#include <sys/types.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -pthread_addr_t -_thread_gc(pthread_addr_t arg) -{ - struct pthread *curthread = _get_curthread(); - int f_debug; - int f_done = 0; - int ret; - sigset_t mask; - pthread_t pthread; - pthread_t pthread_cln; - struct timespec abstime; - void *p_stack; - - /* Block all signals */ - sigfillset(&mask); - _pthread_sigmask(SIG_BLOCK, &mask, NULL); - - /* Mark this thread as a library thread (not a user thread). */ - curthread->flags |= PTHREAD_FLAGS_PRIVATE; - - /* Set a debug flag based on an environment variable. */ - f_debug = (getenv("LIBC_R_DEBUG") != NULL); - - /* Set the name of this thread. */ - pthread_set_name_np(curthread,"GC"); - - while (!f_done) { - /* Check if debugging this application. */ - if (f_debug) - /* Dump thread info to file. */ - _thread_dump_info(); - - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Check if this is the last running thread: */ - if (TAILQ_FIRST(&_thread_list) == curthread && - TAILQ_NEXT(curthread, tle) == NULL) - /* - * This is the last thread, so it can exit - * now. - */ - f_done = 1; - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - - /* No stack of thread structure to free yet: */ - p_stack = NULL; - pthread_cln = NULL; - - /* - * Lock the garbage collector mutex which ensures that - * this thread sees another thread exit: - */ - if (_pthread_mutex_lock(&_gc_mutex) != 0) - PANIC("Cannot lock gc mutex"); - - /* - * Enter a loop to search for the first dead thread that - * has memory to free. - */ - for (pthread = TAILQ_FIRST(&_dead_list); - p_stack == NULL && pthread_cln == NULL && pthread != NULL; - pthread = TAILQ_NEXT(pthread, dle)) { - /* Check if the initial thread: */ - if (pthread == _thread_initial) { - /* Don't destroy the initial thread. */ - } - /* - * Check if this thread has detached: - */ - else if ((pthread->attr.flags & - PTHREAD_DETACHED) != 0) { - /* Remove this thread from the dead list: */ - TAILQ_REMOVE(&_dead_list, pthread, dle); - - /* - * Check if the stack was not specified by - * the caller to pthread_create() and has not - * been destroyed yet: - */ - if (pthread->attr.stackaddr_attr == NULL && - pthread->stack != NULL) { - _thread_stack_free(pthread->stack, - pthread->attr.stacksize_attr, - pthread->attr.guardsize_attr); - } - - /* - * Point to the thread structure that must - * be freed outside the locks: - */ - pthread_cln = pthread; - - } else { - /* - * This thread has not detached, so do - * not destroy it. - * - * Check if the stack was not specified by - * the caller to pthread_create() and has not - * been destroyed yet: - */ - if (pthread->attr.stackaddr_attr == NULL && - pthread->stack != NULL) { - _thread_stack_free(pthread->stack, - pthread->attr.stacksize_attr, - pthread->attr.guardsize_attr); - - /* - * NULL the stack pointer now that the - * memory has been freed: - */ - pthread->stack = NULL; - } - } - } - - /* - * Check if this is not the last thread and there is no - * memory to free this time around. - */ - if (!f_done && p_stack == NULL && pthread_cln == NULL) { - /* Get the current time. */ - if (clock_gettime(CLOCK_REALTIME,&abstime) != 0) - PANIC("gc cannot get time"); - - /* - * Do a backup poll in 10 seconds if no threads - * die before then. - */ - abstime.tv_sec += 10; - - /* - * Wait for a signal from a dying thread or a - * timeout (for a backup poll). - */ - if ((ret = _pthread_cond_timedwait(&_gc_cond, - &_gc_mutex, &abstime)) != 0 && ret != ETIMEDOUT) - PANIC("gc cannot wait for a signal"); - } - - /* Unlock the garbage collector mutex: */ - if (_pthread_mutex_unlock(&_gc_mutex) != 0) - PANIC("Cannot unlock gc mutex"); - - /* - * If there is memory to free, do it now. The call to - * free() might block, so this must be done outside the - * locks. - */ - if (p_stack != NULL) - free(p_stack); - if (pthread_cln != NULL) { - if (pthread_cln->name != NULL) { - /* Free the thread name string. */ - free(pthread_cln->name); - } - /* - * Free the memory allocated for the thread - * structure. - */ - free(pthread_cln); - } - } - return (NULL); -} diff --git a/lib/libc_r/uthread/uthread_getdirentries.c b/lib/libc_r/uthread/uthread_getdirentries.c deleted file mode 100644 index f2c8f79..0000000 --- a/lib/libc_r/uthread/uthread_getdirentries.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <dirent.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_getdirentries, getdirentries); - -int -_getdirentries(int fd, char *buf, int nbytes, long *basep) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_getdirentries(fd, buf, nbytes, basep); - _FD_UNLOCK(fd, FD_RDWR); - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_getpeername.c b/lib/libc_r/uthread/uthread_getpeername.c deleted file mode 100644 index 0a61054..0000000 --- a/lib/libc_r/uthread/uthread_getpeername.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_getpeername, getpeername); - -int -_getpeername(int fd, struct sockaddr * peer, socklen_t *paddrlen) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - ret = __sys_getpeername(fd, peer, paddrlen); - _FD_UNLOCK(fd, FD_READ); - } - return ret; -} - diff --git a/lib/libc_r/uthread/uthread_getprio.c b/lib/libc_r/uthread/uthread_getprio.c deleted file mode 100644 index 363e3cf..0000000 --- a/lib/libc_r/uthread/uthread_getprio.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_getprio, pthread_getprio); - -int -_pthread_getprio(pthread_t pthread) -{ - int policy, ret; - struct sched_param param; - - if ((ret = pthread_getschedparam(pthread, &policy, ¶m)) == 0) - ret = param.sched_priority; - else { - /* Invalid thread: */ - errno = ret; - ret = -1; - } - - /* Return the thread priority or an error status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_getschedparam.c b/lib/libc_r/uthread/uthread_getschedparam.c deleted file mode 100644 index 0d1ffe9..0000000 --- a/lib/libc_r/uthread/uthread_getschedparam.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_getschedparam, pthread_getschedparam); - -int -_pthread_getschedparam(pthread_t pthread, int *policy, - struct sched_param *param) -{ - int ret; - - if ((param == NULL) || (policy == NULL)) - /* Return an invalid argument error: */ - ret = EINVAL; - - /* Find the thread in the list of active threads: */ - else if ((ret = _find_thread(pthread)) == 0) { - /* Return the threads base priority and scheduling policy: */ - param->sched_priority = - PTHREAD_BASE_PRIORITY(pthread->base_priority); - *policy = pthread->attr.sched_policy; - } - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_getsockname.c b/lib/libc_r/uthread/uthread_getsockname.c deleted file mode 100644 index 1870555..0000000 --- a/lib/libc_r/uthread/uthread_getsockname.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_getsockname, getsockname); - -int -_getsockname(int s, struct sockaddr * name, socklen_t *namelen) -{ - int ret; - - if ((ret = _FD_LOCK(s, FD_READ, NULL)) == 0) { - ret = __sys_getsockname(s, name, namelen); - _FD_UNLOCK(s, FD_READ); - } - return ret; -} diff --git a/lib/libc_r/uthread/uthread_getsockopt.c b/lib/libc_r/uthread/uthread_getsockopt.c deleted file mode 100644 index 23f9860..0000000 --- a/lib/libc_r/uthread/uthread_getsockopt.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_getsockopt, getsockopt); - -int -_getsockopt(int fd, int level, int optname, void *optval, socklen_t - *optlen) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_getsockopt(fd, level, optname, optval, optlen); - _FD_UNLOCK(fd, FD_RDWR); - } - return ret; -} diff --git a/lib/libc_r/uthread/uthread_info.c b/lib/libc_r/uthread/uthread_info.c deleted file mode 100644 index 2128820..0000000 --- a/lib/libc_r/uthread/uthread_info.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <paths.h> -#include <pthread.h> -#include <unistd.h> -#include "pthread_private.h" - -#ifndef NELEMENTS -#define NELEMENTS(arr) (sizeof(arr) / sizeof(arr[0])) -#endif - -static void dump_thread(int fd, pthread_t pthread, int long_version); - -__weak_reference(_pthread_set_name_np, pthread_set_name_np); - -struct s_thread_info { - enum pthread_state state; - char *name; -}; - -/* Static variables: */ -static const struct s_thread_info thread_info[] = { - {PS_RUNNING , "Running"}, - {PS_SIGTHREAD , "Waiting on signal thread"}, - {PS_MUTEX_WAIT , "Waiting on a mutex"}, - {PS_COND_WAIT , "Waiting on a condition variable"}, - {PS_FDLR_WAIT , "Waiting for a file read lock"}, - {PS_FDLW_WAIT , "Waiting for a file write lock"}, - {PS_FDR_WAIT , "Waiting for read"}, - {PS_FDW_WAIT , "Waiting for write"}, - {PS_FILE_WAIT , "Waiting for FILE lock"}, - {PS_POLL_WAIT , "Waiting on poll"}, - {PS_SELECT_WAIT , "Waiting on select"}, - {PS_SLEEP_WAIT , "Sleeping"}, - {PS_WAIT_WAIT , "Waiting process"}, - {PS_SIGSUSPEND , "Suspended, waiting for a signal"}, - {PS_SIGWAIT , "Waiting for a signal"}, - {PS_SPINBLOCK , "Waiting for a spinlock"}, - {PS_JOIN , "Waiting to join"}, - {PS_SUSPENDED , "Suspended"}, - {PS_DEAD , "Dead"}, - {PS_DEADLOCK , "Deadlocked"}, - {PS_STATE_MAX , "Not a real state!"} -}; - -void -_thread_dump_info(void) -{ - char s[512]; - int fd; - int i; - pthread_t pthread; - char *tmpdir; - char tmpfile[PATH_MAX]; - pq_list_t *pq_list; - - if (issetugid() != 0 || (tmpdir = getenv("TMPDIR")) == NULL) - tmpdir = _PATH_TMP; - for (i = 0; i < 100000; i++) { - snprintf(tmpfile, sizeof(tmpfile), "%s/uthread.dump.%u.%i", - tmpdir, getpid(), i); - /* Open the dump file for append and create it if necessary: */ - if ((fd = __sys_open(tmpfile, O_RDWR | O_CREAT | O_EXCL, - 0644)) < 0) { - /* Can't open the dump file. */ - if (errno == EEXIST) - continue; - /* - * We only need to continue in case of - * EEXIST error. Most other error - * codes means that we will fail all - * the time. - */ - return; - } else { - break; - } - } - if (i==100000) { - /* all 100000 possibilities are in use :( */ - return; - } else { - /* Output a header for active threads: */ - strcpy(s, "\n\n=============\nACTIVE THREADS\n\n"); - __sys_write(fd, s, strlen(s)); - - /* Enter a loop to report each thread in the global list: */ - TAILQ_FOREACH(pthread, &_thread_list, tle) { - dump_thread(fd, pthread, /*long_verson*/ 1); - } - - /* Output a header for ready threads: */ - strcpy(s, "\n\n=============\nREADY THREADS\n\n"); - __sys_write(fd, s, strlen(s)); - - /* Enter a loop to report each thread in the ready queue: */ - TAILQ_FOREACH (pq_list, &_readyq.pq_queue, pl_link) { - TAILQ_FOREACH(pthread, &pq_list->pl_head, pqe) { - dump_thread(fd, pthread, /*long_version*/ 0); - } - } - - /* Output a header for waiting threads: */ - strcpy(s, "\n\n=============\nWAITING THREADS\n\n"); - __sys_write(fd, s, strlen(s)); - - /* Enter a loop to report each thread in the waiting queue: */ - TAILQ_FOREACH (pthread, &_waitingq, pqe) { - dump_thread(fd, pthread, /*long_version*/ 0); - } - - /* Output a header for threads in the work queue: */ - strcpy(s, "\n\n=============\nTHREADS IN WORKQ\n\n"); - __sys_write(fd, s, strlen(s)); - - /* Enter a loop to report each thread in the waiting queue: */ - TAILQ_FOREACH (pthread, &_workq, qe) { - dump_thread(fd, pthread, /*long_version*/ 0); - } - - /* Check if there are no dead threads: */ - if (TAILQ_FIRST(&_dead_list) == NULL) { - /* Output a record: */ - strcpy(s, "\n\nTHERE ARE NO DEAD THREADS\n"); - __sys_write(fd, s, strlen(s)); - } else { - /* Output a header for dead threads: */ - strcpy(s, "\n\nDEAD THREADS\n\n"); - __sys_write(fd, s, strlen(s)); - - /* - * Enter a loop to report each thread in the global - * dead thread list: - */ - TAILQ_FOREACH(pthread, &_dead_list, dle) { - dump_thread(fd, pthread, /*long_version*/ 0); - } - } - - /* Output a header for file descriptors: */ - snprintf(s, sizeof(s), "\n\n=============\nFILE DESCRIPTOR " - "TABLE (table size %d)\n\n", _thread_dtablesize); - __sys_write(fd, s, strlen(s)); - - /* Enter a loop to report file descriptor lock usage: */ - for (i = 0; i < _thread_dtablesize; i++) { - /* - * Check if memory is allocated for this file - * descriptor: - */ - if (_thread_fd_table[i] != NULL) { - /* Report the file descriptor lock status: */ - snprintf(s, sizeof(s), - "fd[%3d] read owner %p count %d [%s:%d]\n" - " write owner %p count %d [%s:%d]\n", - i, _thread_fd_table[i]->r_owner, - _thread_fd_table[i]->r_lockcount, - _thread_fd_table[i]->r_fname, - _thread_fd_table[i]->r_lineno, - _thread_fd_table[i]->w_owner, - _thread_fd_table[i]->w_lockcount, - _thread_fd_table[i]->w_fname, - _thread_fd_table[i]->w_lineno); - __sys_write(fd, s, strlen(s)); - } - } - - /* Close the dump file: */ - __sys_close(fd); - } -} - -static void -dump_thread(int fd, pthread_t pthread, int long_version) -{ - struct pthread *curthread = _get_curthread(); - char s[512]; - int i; - - /* Find the state: */ - for (i = 0; i < NELEMENTS(thread_info) - 1; i++) - if (thread_info[i].state == pthread->state) - break; - - /* Output a record for the thread: */ - snprintf(s, sizeof(s), - "--------------------\nThread %p (%s) prio %3d state %s", - pthread, (pthread->name == NULL) ? "" : pthread->name, - pthread->active_priority, thread_info[i].name); - __sys_write(fd, s, strlen(s)); - /* And now where it is. */ - if (pthread->fname != NULL) { - snprintf(s, sizeof(s), " [%s:%d]", pthread->fname, - pthread->lineno); - __sys_write(fd, s, strlen(s)); - } - __sys_write(fd, "\n", 1); - - if (long_version != 0) { - /* Check if this is the running thread: */ - if (pthread == curthread) { - /* Output a record for the running thread: */ - strcpy(s, "This is the running thread\n"); - __sys_write(fd, s, strlen(s)); - } - /* Check if this is the initial thread: */ - if (pthread == _thread_initial) { - /* Output a record for the initial thread: */ - strcpy(s, "This is the initial thread\n"); - __sys_write(fd, s, strlen(s)); - } - /* Process according to thread state: */ - switch (pthread->state) { - /* File descriptor read lock wait: */ - case PS_FDLR_WAIT: - case PS_FDLW_WAIT: - case PS_FDR_WAIT: - case PS_FDW_WAIT: - /* Write the lock details: */ - snprintf(s, sizeof(s), "fd %d[%s:%d]", - pthread->data.fd.fd, - pthread->data.fd.fname, - pthread->data.fd.branch); - __sys_write(fd, s, strlen(s)); - break; - case PS_SIGWAIT: - snprintf(s, sizeof(s), "sigmask (hi)"); - __sys_write(fd, s, strlen(s)); - for (i = _SIG_WORDS - 1; i >= 0; i--) { - snprintf(s, sizeof(s), "%08x\n", - pthread->sigmask.__bits[i]); - __sys_write(fd, s, strlen(s)); - } - snprintf(s, sizeof(s), "(lo)\n"); - __sys_write(fd, s, strlen(s)); - break; - /* - * Trap other states that are not explicitly - * coded to dump information: - */ - default: - /* Nothing to do here. */ - break; - } - } -} - -/* Set the thread name for debug: */ -void -_pthread_set_name_np(pthread_t thread, const char *name) -{ - /* Check if the caller has specified a valid thread: */ - if (thread != NULL && thread->magic == PTHREAD_MAGIC) { - if (thread->name != NULL) { - /* Free space for previous name. */ - free(thread->name); - } - thread->name = strdup(name); - } -} diff --git a/lib/libc_r/uthread/uthread_init.c b/lib/libc_r/uthread/uthread_init.c deleted file mode 100644 index 7c8c444..0000000 --- a/lib/libc_r/uthread/uthread_init.c +++ /dev/null @@ -1,608 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -/* Allocate space for global thread variables here: */ -#define GLOBAL_PTHREAD_PRIVATE - -#include "namespace.h" -#include <sys/param.h> -#include <sys/types.h> -#include <machine/reg.h> - -#include <sys/ioctl.h> -#include <sys/mount.h> -#include <sys/uio.h> -#include <sys/socket.h> -#include <sys/event.h> -#include <sys/stat.h> -#include <sys/sysctl.h> -#include <sys/time.h> -#include <sys/ttycom.h> -#include <sys/wait.h> -#include <sys/mman.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <paths.h> -#include <poll.h> -#include <pthread.h> -#include <pthread_np.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include "un-namespace.h" - -#include "libc_private.h" -#include "pthread_private.h" - -int __pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *); -int __pthread_mutex_lock(pthread_mutex_t *); -int __pthread_mutex_trylock(pthread_mutex_t *); - -/* - * All weak references used within libc should be in this table. - * This allows static libraries to work. - */ -static void *references[] = { - &_accept, - &_bind, - &_close, - &_connect, - &_dup, - &_dup2, - &_execve, - &_fcntl, - &_flock, - &_flockfile, - &_fstat, - &_fstatfs, - &_fsync, - &_funlockfile, - &_getdirentries, - &_getlogin, - &_getpeername, - &_getsockname, - &_getsockopt, - &_ioctl, - &_kevent, - &_kqueue, - &_listen, - &_nanosleep, - &_open, - &_pthread_cond_destroy, - &_pthread_cond_init, - &_pthread_cond_signal, - &_pthread_cond_wait, - &_pthread_getspecific, - &_pthread_key_create, - &_pthread_key_delete, - &_pthread_mutex_destroy, - &_pthread_mutex_init, - &_pthread_mutex_lock, - &_pthread_mutex_trylock, - &_pthread_mutex_unlock, - &_pthread_mutexattr_init, - &_pthread_mutexattr_destroy, - &_pthread_mutexattr_settype, - &_pthread_once, - &_pthread_setspecific, - &_read, - &_readv, - &_recvfrom, - &_recvmsg, - &_select, - &_sendmsg, - &_sendto, - &_setsockopt, - &_sigaction, - &_sigprocmask, - &_sigsuspend, - &_socket, - &_socketpair, - &_wait4, - &_write, - &_writev -}; - -/* - * These are needed when linking statically. All references within - * libgcc (and libc) to these routines are weak, but if they are not - * (strongly) referenced by the application or other libraries, then - * the actual functions will not be loaded. - */ -static void *libgcc_references[] = { - &_pthread_once, - &_pthread_key_create, - &_pthread_key_delete, - &_pthread_getspecific, - &_pthread_setspecific, - &_pthread_mutex_init, - &_pthread_mutex_destroy, - &_pthread_mutex_lock, - &_pthread_mutex_trylock, - &_pthread_mutex_unlock -}; - -#define DUAL_ENTRY(entry) \ - (pthread_func_t)entry, (pthread_func_t)entry - -static pthread_func_t jmp_table[][2] = { - {DUAL_ENTRY(_pthread_atfork)}, /* PJT_ATFORK */ - {DUAL_ENTRY(_pthread_attr_destroy)}, /* PJT_ATTR_DESTROY */ - {DUAL_ENTRY(_pthread_attr_getdetachstate)}, /* PJT_ATTR_GETDETACHSTATE */ - {DUAL_ENTRY(_pthread_attr_getguardsize)}, /* PJT_ATTR_GETGUARDSIZE */ - {DUAL_ENTRY(_pthread_attr_getinheritsched)}, /* PJT_ATTR_GETINHERITSCHED */ - {DUAL_ENTRY(_pthread_attr_getschedparam)}, /* PJT_ATTR_GETSCHEDPARAM */ - {DUAL_ENTRY(_pthread_attr_getschedpolicy)}, /* PJT_ATTR_GETSCHEDPOLICY */ - {DUAL_ENTRY(_pthread_attr_getscope)}, /* PJT_ATTR_GETSCOPE */ - {DUAL_ENTRY(_pthread_attr_getstackaddr)}, /* PJT_ATTR_GETSTACKADDR */ - {DUAL_ENTRY(_pthread_attr_getstacksize)}, /* PJT_ATTR_GETSTACKSIZE */ - {DUAL_ENTRY(_pthread_attr_init)}, /* PJT_ATTR_INIT */ - {DUAL_ENTRY(_pthread_attr_setdetachstate)}, /* PJT_ATTR_SETDETACHSTATE */ - {DUAL_ENTRY(_pthread_attr_setguardsize)}, /* PJT_ATTR_SETGUARDSIZE */ - {DUAL_ENTRY(_pthread_attr_setinheritsched)}, /* PJT_ATTR_SETINHERITSCHED */ - {DUAL_ENTRY(_pthread_attr_setschedparam)}, /* PJT_ATTR_SETSCHEDPARAM */ - {DUAL_ENTRY(_pthread_attr_setschedpolicy)}, /* PJT_ATTR_SETSCHEDPOLICY */ - {DUAL_ENTRY(_pthread_attr_setscope)}, /* PJT_ATTR_SETSCOPE */ - {DUAL_ENTRY(_pthread_attr_setstackaddr)}, /* PJT_ATTR_SETSTACKADDR */ - {DUAL_ENTRY(_pthread_attr_setstacksize)}, /* PJT_ATTR_SETSTACKSIZE */ - {DUAL_ENTRY(_pthread_cancel)}, /* PJT_CANCEL */ - {DUAL_ENTRY(_pthread_cleanup_pop)}, /* PJT_CLEANUP_POP */ - {DUAL_ENTRY(_pthread_cleanup_push)}, /* PJT_CLEANUP_PUSH */ - {DUAL_ENTRY(_pthread_cond_broadcast)}, /* PJT_COND_BROADCAST */ - {DUAL_ENTRY(_pthread_cond_destroy)}, /* PJT_COND_DESTROY */ - {DUAL_ENTRY(_pthread_cond_init)}, /* PJT_COND_INIT */ - {DUAL_ENTRY(_pthread_cond_signal)}, /* PJT_COND_SIGNAL */ - {DUAL_ENTRY(_pthread_cond_timedwait)}, /* PJT_COND_TIMEDWAIT */ - {(pthread_func_t)__pthread_cond_wait, - (pthread_func_t)_pthread_cond_wait}, /* PJT_COND_WAIT */ - {DUAL_ENTRY(_pthread_detach)}, /* PJT_DETACH */ - {DUAL_ENTRY(_pthread_equal)}, /* PJT_EQUAL */ - {DUAL_ENTRY(_pthread_exit)}, /* PJT_EXIT */ - {DUAL_ENTRY(_pthread_getspecific)}, /* PJT_GETSPECIFIC */ - {DUAL_ENTRY(_pthread_join)}, /* PJT_JOIN */ - {DUAL_ENTRY(_pthread_key_create)}, /* PJT_KEY_CREATE */ - {DUAL_ENTRY(_pthread_key_delete)}, /* PJT_KEY_DELETE*/ - {DUAL_ENTRY(_pthread_kill)}, /* PJT_KILL */ - {DUAL_ENTRY(_pthread_main_np)}, /* PJT_MAIN_NP */ - {DUAL_ENTRY(_pthread_mutexattr_destroy)}, /* PJT_MUTEXATTR_DESTROY */ - {DUAL_ENTRY(_pthread_mutexattr_init)}, /* PJT_MUTEXATTR_INIT */ - {DUAL_ENTRY(_pthread_mutexattr_settype)}, /* PJT_MUTEXATTR_SETTYPE */ - {DUAL_ENTRY(_pthread_mutex_destroy)}, /* PJT_MUTEX_DESTROY */ - {DUAL_ENTRY(_pthread_mutex_init)}, /* PJT_MUTEX_INIT */ - {(pthread_func_t)__pthread_mutex_lock, - (pthread_func_t)_pthread_mutex_lock}, /* PJT_MUTEX_LOCK */ - {(pthread_func_t)__pthread_mutex_trylock, - (pthread_func_t)_pthread_mutex_trylock},/* PJT_MUTEX_TRYLOCK */ - {DUAL_ENTRY(_pthread_mutex_unlock)}, /* PJT_MUTEX_UNLOCK */ - {DUAL_ENTRY(_pthread_once)}, /* PJT_ONCE */ - {DUAL_ENTRY(_pthread_rwlock_destroy)}, /* PJT_RWLOCK_DESTROY */ - {DUAL_ENTRY(_pthread_rwlock_init)}, /* PJT_RWLOCK_INIT */ - {DUAL_ENTRY(_pthread_rwlock_rdlock)}, /* PJT_RWLOCK_RDLOCK */ - {DUAL_ENTRY(_pthread_rwlock_tryrdlock)},/* PJT_RWLOCK_TRYRDLOCK */ - {DUAL_ENTRY(_pthread_rwlock_trywrlock)},/* PJT_RWLOCK_TRYWRLOCK */ - {DUAL_ENTRY(_pthread_rwlock_unlock)}, /* PJT_RWLOCK_UNLOCK */ - {DUAL_ENTRY(_pthread_rwlock_wrlock)}, /* PJT_RWLOCK_WRLOCK */ - {DUAL_ENTRY(_pthread_self)}, /* PJT_SELF */ - {DUAL_ENTRY(_pthread_setcancelstate)}, /* PJT_SETCANCELSTATE */ - {DUAL_ENTRY(_pthread_setcanceltype)}, /* PJT_SETCANCELTYPE */ - {DUAL_ENTRY(_pthread_setspecific)}, /* PJT_SETSPECIFIC */ - {DUAL_ENTRY(_pthread_sigmask)}, /* PJT_SIGMASK */ - {DUAL_ENTRY(_pthread_testcancel)} /* PJT_TESTCANCEL */ -}; - -int _pthread_guard_default; -int _pthread_page_size; -int _pthread_stack_default; -int _pthread_stack_initial; - -/* - * Threaded process initialization - */ -void -_thread_init(void) -{ - int fd; - int flags; - int i; - size_t len; - int mib[2]; - int sched_stack_size; /* Size of scheduler stack. */ -#if !defined(__ia64__) - u_long stackp; -#endif - - struct clockinfo clockinfo; - struct sigaction act; - - - /* Check if this function has already been called: */ - if (_thread_initial) - /* Only initialise the threaded application once. */ - return; - - _pthread_page_size = getpagesize();; - _pthread_guard_default = _pthread_page_size; - sched_stack_size = 4 * _pthread_page_size; - if (sizeof(void *) == 8) { - _pthread_stack_default = PTHREAD_STACK64_DEFAULT; - _pthread_stack_initial = PTHREAD_STACK64_INITIAL; - } - else { - _pthread_stack_default = PTHREAD_STACK32_DEFAULT; - _pthread_stack_initial = PTHREAD_STACK32_INITIAL; - } - - _pthread_attr_default.guardsize_attr = _pthread_guard_default; - _pthread_attr_default.stacksize_attr = _pthread_stack_default; - - /* - * Make gcc quiescent about {,libgcc_}references not being - * referenced: - */ - if ((references[0] == NULL) || (libgcc_references[0] == NULL)) - PANIC("Failed loading mandatory references in _thread_init"); - - /* - * Check the size of the jump table to make sure it is preset - * with the correct number of entries. - */ - if (sizeof(jmp_table) != (sizeof(pthread_func_t) * PJT_MAX * 2)) - PANIC("Thread jump table not properly initialized"); - memcpy(__thr_jtable, jmp_table, sizeof(jmp_table)); - - /* - * Check for the special case of this process running as - * or in place of init as pid = 1: - */ - if (getpid() == 1) { - /* - * Setup a new session for this process which is - * assumed to be running as root. - */ - if (setsid() == -1) - PANIC("Can't set session ID"); - if (revoke(_PATH_CONSOLE) != 0) - PANIC("Can't revoke console"); - if ((fd = __sys_open(_PATH_CONSOLE, O_RDWR)) < 0) - PANIC("Can't open console"); - if (setlogin("root") == -1) - PANIC("Can't set login to root"); - if (__sys_ioctl(fd, TIOCSCTTY, (char *) NULL) == -1) - PANIC("Can't set controlling terminal"); - if (__sys_dup2(fd, 0) == -1 || - __sys_dup2(fd, 1) == -1 || - __sys_dup2(fd, 2) == -1) - PANIC("Can't dup2"); - } - - /* Get the standard I/O flags before messing with them : */ - for (i = 0; i < 3; i++) { - if (((_pthread_stdio_flags[i] = - __sys_fcntl(i, F_GETFL, NULL)) == -1) && - (errno != EBADF)) - PANIC("Cannot get stdio flags"); - } - - /* - * Create a pipe that is written to by the signal handler to prevent - * signals being missed in calls to _select: - */ - if (__sys_pipe(_thread_kern_pipe) != 0) { - /* Cannot create pipe, so abort: */ - PANIC("Cannot create kernel pipe"); - } - - /* - * Make sure the pipe does not get in the way of stdio: - */ - for (i = 0; i < 2; i++) { - if (_thread_kern_pipe[i] < 3) { - fd = __sys_fcntl(_thread_kern_pipe[i], F_DUPFD, 3); - if (fd == -1) - PANIC("Cannot create kernel pipe"); - __sys_close(_thread_kern_pipe[i]); - _thread_kern_pipe[i] = fd; - } - } - /* Get the flags for the read pipe: */ - if ((flags = __sys_fcntl(_thread_kern_pipe[0], F_GETFL, NULL)) == -1) { - /* Abort this application: */ - PANIC("Cannot get kernel read pipe flags"); - } - /* Make the read pipe non-blocking: */ - else if (__sys_fcntl(_thread_kern_pipe[0], F_SETFL, flags | O_NONBLOCK) == -1) { - /* Abort this application: */ - PANIC("Cannot make kernel read pipe non-blocking"); - } - /* Get the flags for the write pipe: */ - else if ((flags = __sys_fcntl(_thread_kern_pipe[1], F_GETFL, NULL)) == -1) { - /* Abort this application: */ - PANIC("Cannot get kernel write pipe flags"); - } - /* Make the write pipe non-blocking: */ - else if (__sys_fcntl(_thread_kern_pipe[1], F_SETFL, flags | O_NONBLOCK) == -1) { - /* Abort this application: */ - PANIC("Cannot get kernel write pipe flags"); - } - /* Allocate and initialize the ready queue: */ - else if (_pq_alloc(&_readyq, PTHREAD_MIN_PRIORITY, PTHREAD_LAST_PRIORITY) != 0) { - /* Abort this application: */ - PANIC("Cannot allocate priority ready queue."); - } - /* Allocate memory for the thread structure of the initial thread: */ - else if ((_thread_initial = (pthread_t) malloc(sizeof(struct pthread))) == NULL) { - /* - * Insufficient memory to initialise this application, so - * abort: - */ - PANIC("Cannot allocate memory for initial thread"); - } - /* Allocate memory for the scheduler stack: */ - else if ((_thread_kern_sched_stack = malloc(sched_stack_size)) == NULL) - PANIC("Failed to allocate stack for scheduler"); - else { - /* Zero the global kernel thread structure: */ - memset(&_thread_kern_thread, 0, sizeof(struct pthread)); - _thread_kern_thread.flags = PTHREAD_FLAGS_PRIVATE; - memset(_thread_initial, 0, sizeof(struct pthread)); - - /* Initialize the waiting and work queues: */ - TAILQ_INIT(&_waitingq); - TAILQ_INIT(&_workq); - - /* Initialize the scheduling switch hook routine: */ - _sched_switch_hook = NULL; - - /* Give this thread default attributes: */ - memcpy((void *) &_thread_initial->attr, &_pthread_attr_default, - sizeof(struct pthread_attr)); - - /* Find the stack top */ - mib[0] = CTL_KERN; - mib[1] = KERN_USRSTACK; - len = sizeof (_usrstack); - if (sysctl(mib, 2, &_usrstack, &len, NULL, 0) == -1) - _usrstack = (void *)USRSTACK; - /* - * Create a red zone below the main stack. All other stacks are - * constrained to a maximum size by the paramters passed to - * mmap(), but this stack is only limited by resource limits, so - * this stack needs an explicitly mapped red zone to protect the - * thread stack that is just beyond. - */ - if (mmap(_usrstack - _pthread_stack_initial - - _pthread_guard_default, _pthread_guard_default, 0, - MAP_ANON, -1, 0) == MAP_FAILED) - PANIC("Cannot allocate red zone for initial thread"); - - /* Set the main thread stack pointer. */ - _thread_initial->stack = _usrstack - _pthread_stack_initial; - - /* Set the stack attributes: */ - _thread_initial->attr.stackaddr_attr = _thread_initial->stack; - _thread_initial->attr.stacksize_attr = _pthread_stack_initial; - - /* Setup the context for the scheduler: */ - _setjmp(_thread_kern_sched_jb); -#if !defined(__ia64__) - stackp = (long)_thread_kern_sched_stack + sched_stack_size - sizeof(double); -#if defined(__amd64__) - stackp &= ~0xFUL; -#endif - SET_STACK_JB(_thread_kern_sched_jb, stackp); -#else - SET_STACK_JB(_thread_kern_sched_jb, _thread_kern_sched_stack, - sched_stack_size); -#endif - SET_RETURN_ADDR_JB(_thread_kern_sched_jb, _thread_kern_scheduler); - - /* - * Write a magic value to the thread structure - * to help identify valid ones: - */ - _thread_initial->magic = PTHREAD_MAGIC; - - /* Set the initial cancel state */ - _thread_initial->cancelflags = PTHREAD_CANCEL_ENABLE | - PTHREAD_CANCEL_DEFERRED; - - /* Default the priority of the initial thread: */ - _thread_initial->base_priority = PTHREAD_DEFAULT_PRIORITY; - _thread_initial->active_priority = PTHREAD_DEFAULT_PRIORITY; - _thread_initial->inherited_priority = 0; - - /* Initialise the state of the initial thread: */ - _thread_initial->state = PS_RUNNING; - - /* Set the name of the thread: */ - _thread_initial->name = strdup("_thread_initial"); - - /* Initialize joiner to NULL (no joiner): */ - _thread_initial->joiner = NULL; - - /* Initialize the owned mutex queue and count: */ - TAILQ_INIT(&(_thread_initial->mutexq)); - _thread_initial->priority_mutex_count = 0; - - /* Initialize the global scheduling time: */ - _sched_ticks = 0; - gettimeofday((struct timeval *) &_sched_tod, NULL); - - /* Initialize last active: */ - _thread_initial->last_active = (long) _sched_ticks; - - /* Initialize the initial context: */ - _thread_initial->curframe = NULL; - - /* Initialise the rest of the fields: */ - _thread_initial->poll_data.nfds = 0; - _thread_initial->poll_data.fds = NULL; - _thread_initial->sig_defer_count = 0; - _thread_initial->yield_on_sig_undefer = 0; - _thread_initial->specific = NULL; - _thread_initial->cleanup = NULL; - _thread_initial->flags = 0; - _thread_initial->error = 0; - TAILQ_INIT(&_thread_list); - TAILQ_INSERT_HEAD(&_thread_list, _thread_initial, tle); - _set_curthread(_thread_initial); - TAILQ_INIT(&_atfork_list); - _pthread_mutex_init(&_atfork_mutex, NULL); - - /* Initialise the global signal action structure: */ - sigfillset(&act.sa_mask); - act.sa_handler = (void (*) ()) _thread_sig_handler; - act.sa_flags = SA_SIGINFO | SA_RESTART; - - /* Clear pending signals for the process: */ - sigemptyset(&_process_sigpending); - - /* Clear the signal queue: */ - memset(_thread_sigq, 0, sizeof(_thread_sigq)); - - /* Enter a loop to get the existing signal status: */ - for (i = 1; i < NSIG; i++) { - /* Check for signals which cannot be trapped: */ - if (i == SIGKILL || i == SIGSTOP) { - } - - /* Get the signal handler details: */ - else if (__sys_sigaction(i, NULL, - &_thread_sigact[i - 1]) != 0) { - /* - * Abort this process if signal - * initialisation fails: - */ - PANIC("Cannot read signal handler info"); - } - - /* Initialize the SIG_DFL dummy handler count. */ - _thread_dfl_count[i] = 0; - } - - /* - * Install the signal handler for the most important - * signals that the user-thread kernel needs. Actually - * SIGINFO isn't really needed, but it is nice to have. - */ - if (__sys_sigaction(_SCHED_SIGNAL, &act, NULL) != 0 || - __sys_sigaction(SIGINFO, &act, NULL) != 0 || - __sys_sigaction(SIGCHLD, &act, NULL) != 0) { - /* - * Abort this process if signal initialisation fails: - */ - PANIC("Cannot initialise signal handler"); - } - _thread_sigact[_SCHED_SIGNAL - 1].sa_flags = SA_SIGINFO; - _thread_sigact[SIGINFO - 1].sa_flags = SA_SIGINFO; - _thread_sigact[SIGCHLD - 1].sa_flags = SA_SIGINFO; - - /* Get the process signal mask: */ - __sys_sigprocmask(SIG_SETMASK, NULL, &_process_sigmask); - - /* Get the kernel clockrate: */ - mib[0] = CTL_KERN; - mib[1] = KERN_CLOCKRATE; - len = sizeof (struct clockinfo); - if (sysctl(mib, 2, &clockinfo, &len, NULL, 0) == 0) - _clock_res_usec = clockinfo.tick > CLOCK_RES_USEC_MIN ? - clockinfo.tick : CLOCK_RES_USEC_MIN; - - /* Get the table size: */ - if ((_thread_dtablesize = getdtablesize()) < 0) { - /* - * Cannot get the system defined table size, so abort - * this process. - */ - PANIC("Cannot get dtablesize"); - } - /* Allocate memory for the file descriptor table: */ - if ((_thread_fd_table = (struct fd_table_entry **) malloc(sizeof(struct fd_table_entry *) * _thread_dtablesize)) == NULL) { - /* Avoid accesses to file descriptor table on exit: */ - _thread_dtablesize = 0; - - /* - * Cannot allocate memory for the file descriptor - * table, so abort this process. - */ - PANIC("Cannot allocate memory for file descriptor table"); - } - /* Allocate memory for the pollfd table: */ - if ((_thread_pfd_table = (struct pollfd *) malloc(sizeof(struct pollfd) * _thread_dtablesize)) == NULL) { - /* - * Cannot allocate memory for the file descriptor - * table, so abort this process. - */ - PANIC("Cannot allocate memory for pollfd table"); - } else { - /* - * Enter a loop to initialise the file descriptor - * table: - */ - for (i = 0; i < _thread_dtablesize; i++) { - /* Initialise the file descriptor table: */ - _thread_fd_table[i] = NULL; - } - - /* Initialize stdio file descriptor table entries: */ - for (i = 0; i < 3; i++) { - if ((_thread_fd_table_init(i) != 0) && - (errno != EBADF)) - PANIC("Cannot initialize stdio file " - "descriptor table entry"); - } - } - } - - /* Initialise the garbage collector mutex and condition variable. */ - if (_pthread_mutex_init(&_gc_mutex,NULL) != 0 || - _pthread_cond_init(&_gc_cond,NULL) != 0) - PANIC("Failed to initialise garbage collector mutex or condvar"); -} - - -/* - * Special start up code for NetBSD/Alpha - */ -#if defined(__NetBSD__) && defined(__alpha__) -int -main(int argc, char *argv[], char *env); - -int -_thread_main(int argc, char *argv[], char *env) -{ - _thread_init(); - return (main(argc, argv, env)); -} -#endif diff --git a/lib/libc_r/uthread/uthread_ioctl.c b/lib/libc_r/uthread/uthread_ioctl.c deleted file mode 100644 index f56146a..0000000 --- a/lib/libc_r/uthread/uthread_ioctl.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdarg.h> -#include <sys/ioctl.h> -#include <sys/fcntl.h> /* O_NONBLOCK*/ -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_ioctl, ioctl); - -int -_ioctl(int fd, unsigned long request,...) -{ - int ret; - int flags; - int *op; - va_list ap; - - /* Lock the file descriptor: */ - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - /* Initialise the variable argument list: */ - va_start(ap, request); - - switch( request) { - case FIONBIO: - /* - * descriptors must be non-blocking; we are only - * twiddling the flag based on the request - */ - op = va_arg(ap, int *); - flags = _thread_fd_getflags(fd); - if (*op == 0) - flags &= ~O_NONBLOCK; - else - flags |= O_NONBLOCK; - _thread_fd_setflags(fd, flags); - ret = 0; - break; - default: - ret = __sys_ioctl(fd, request, va_arg(ap, char *)); - break; - } - - /* Free variable arguments: */ - va_end(ap); - - /* Unlock the file descriptor: */ - _FD_UNLOCK(fd, FD_RDWR); - } - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_jmp.c b/lib/libc_r/uthread/uthread_jmp.c deleted file mode 100644 index 5aa0001..0000000 --- a/lib/libc_r/uthread/uthread_jmp.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * Copyright (C) 2000 Daniel M. Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <unistd.h> -#include <setjmp.h> -#include <sys/param.h> -#include <machine/reg.h> -#include <pthread.h> -#include "pthread_private.h" - -/* Prototypes: */ -static inline int check_stack(pthread_t thread, void *stackp); - -__weak_reference(_thread_siglongjmp, siglongjmp); -__weak_reference(_thread_longjmp, longjmp); -__weak_reference(__thread_longjmp, _longjmp); - -void -_thread_siglongjmp(sigjmp_buf env, int savemask) -{ - struct pthread *curthread = _get_curthread(); - - if (check_stack(curthread, (void *) GET_STACK_SJB(env))) - PANIC("siglongjmp()ing between thread contexts is undefined by " - "POSIX 1003.1"); - - /* - * The stack pointer is somewhere within the threads stack. - * Jump to the users context. - */ - __siglongjmp(env, savemask); -} - -void -_thread_longjmp(jmp_buf env, int val) -{ - struct pthread *curthread = _get_curthread(); - - if (check_stack(curthread, (void *) GET_STACK_JB(env))) - PANIC("longjmp()ing between thread contexts is undefined by " - "POSIX 1003.1"); - - /* - * The stack pointer is somewhere within the threads stack. - * Jump to the users context. - */ - __longjmp(env, val); -} - -void -__thread_longjmp(jmp_buf env, int val) -{ - struct pthread *curthread = _get_curthread(); - - if (check_stack(curthread, (void *) GET_STACK_JB(env))) - PANIC("_longjmp()ing between thread contexts is undefined by " - "POSIX 1003.1"); - - /* - * The stack pointer is somewhere within the threads stack. - * Jump to the users context. - */ - ___longjmp(env, val); -} - -/* Returns 0 if stack check is OK, non-zero otherwise. */ -static inline int -check_stack(pthread_t thread, void *stackp) -{ - void *stack_begin, *stack_end; - - /* Get the bounds of the current threads stack. */ - PTHREAD_ASSERT(thread->stack != NULL, - "Thread stack pointer is null"); - stack_begin = thread->stack; - stack_end = stack_begin + thread->attr.stacksize_attr; - - /* - * Make sure we aren't jumping to a different stack. Make sure - * jmp_stackp is between stack_begin and stack end, to correctly detect - * this condition regardless of whether the stack grows up or down. - */ - if (((stackp < stack_begin) && (stackp < stack_end)) || - ((stackp > stack_begin) && (stackp > stack_end))) - return (1); - else - return (0); -} diff --git a/lib/libc_r/uthread/uthread_join.c b/lib/libc_r/uthread/uthread_join.c deleted file mode 100644 index c8f8441..0000000 --- a/lib/libc_r/uthread/uthread_join.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -__weak_reference(_pthread_join, pthread_join); - -int -_pthread_join(pthread_t pthread, void **thread_return) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - pthread_t thread; - - _thread_enter_cancellation_point(); - - /* Check if the caller has specified an invalid thread: */ - if (pthread == NULL || pthread->magic != PTHREAD_MAGIC) { - /* Invalid thread: */ - _thread_leave_cancellation_point(); - return(EINVAL); - } - - /* Check if the caller has specified itself: */ - if (pthread == curthread) { - /* Avoid a deadlock condition: */ - _thread_leave_cancellation_point(); - return(EDEADLK); - } - - /* - * Lock the garbage collector mutex to ensure that the garbage - * collector is not using the dead thread list. - */ - if (_pthread_mutex_lock(&_gc_mutex) != 0) - PANIC("Cannot lock gc mutex"); - - /* - * Defer signals to protect the thread list from access - * by the signal handler: - */ - _thread_kern_sig_defer(); - - /* - * Unlock the garbage collector mutex, now that the garbage collector - * can't be run: - */ - if (_pthread_mutex_unlock(&_gc_mutex) != 0) - PANIC("Cannot lock gc mutex"); - - /* - * Search for the specified thread in the list of active threads. This - * is done manually here rather than calling _find_thread() because - * the searches in _thread_list and _dead_list (as well as setting up - * join/detach state) have to be done atomically. - */ - TAILQ_FOREACH(thread, &_thread_list, tle) { - if (thread == pthread) - break; - } - if (thread == NULL) { - /* - * Search for the specified thread in the list of dead threads: - */ - TAILQ_FOREACH(thread, &_dead_list, dle) { - if (thread == pthread) - break; - } - } - - /* Check if the thread was not found or has been detached: */ - if (thread == NULL || - ((pthread->attr.flags & PTHREAD_DETACHED) != 0)) { - /* Undefer and handle pending signals, yielding if necessary: */ - _thread_kern_sig_undefer(); - - /* Return an error: */ - ret = ESRCH; - - } else if (pthread->joiner != NULL) { - /* Undefer and handle pending signals, yielding if necessary: */ - _thread_kern_sig_undefer(); - - /* Multiple joiners are not supported. */ - ret = ENOTSUP; - - /* Check if the thread is not dead: */ - } else if (pthread->state != PS_DEAD) { - /* Set the running thread to be the joiner: */ - pthread->joiner = curthread; - - /* Keep track of which thread we're joining to: */ - curthread->join_status.thread = pthread; - - while (curthread->join_status.thread == pthread) { - /* Schedule the next thread: */ - _thread_kern_sched_state(PS_JOIN, __FILE__, __LINE__); - } - - /* - * The thread return value and error are set by the thread we're - * joining to when it exits or detaches: - */ - ret = curthread->join_status.error; - if ((ret == 0) && (thread_return != NULL)) - *thread_return = curthread->join_status.ret; - - /* Undefer and handle pending signals, yielding if necessary: */ - _thread_kern_sig_undefer(); - } else { - /* - * The thread exited (is dead) without being detached, and no - * thread has joined it. - */ - - /* Check if the return value is required: */ - if (thread_return != NULL) { - /* Return the thread's return value: */ - *thread_return = pthread->ret; - } - - /* Make the thread collectable by the garbage collector. */ - pthread->attr.flags |= PTHREAD_DETACHED; - - /* Undefer and handle pending signals, yielding if necessary: */ - _thread_kern_sig_undefer(); - } - - _thread_leave_cancellation_point(); - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_kern.c b/lib/libc_r/uthread/uthread_kern.c deleted file mode 100644 index 8bd25b4..0000000 --- a/lib/libc_r/uthread/uthread_kern.c +++ /dev/null @@ -1,1135 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <errno.h> -#include <poll.h> -#include <stdlib.h> -#include <stdarg.h> -#include <string.h> -#include <unistd.h> -#include <setjmp.h> -#include <sys/param.h> -#include <sys/types.h> -#include <sys/signalvar.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/socket.h> -#include <sys/uio.h> -#include <sys/syscall.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -/* #define DEBUG_THREAD_KERN */ -#ifdef DEBUG_THREAD_KERN -#define DBG_MSG stdout_debug -#else -#define DBG_MSG(x...) -#endif - -/* Static function prototype definitions: */ -static void -thread_kern_poll(int wait_reqd); - -static void -dequeue_signals(void); - -static inline void -thread_run_switch_hook(pthread_t thread_out, pthread_t thread_in); - -/* Static variables: */ -static int last_tick = 0; -static int called_from_handler = 0; - -/* - * This is called when a signal handler finishes and wants to - * return to a previous frame. - */ -void -_thread_kern_sched_frame(struct pthread_signal_frame *psf) -{ - struct pthread *curthread = _get_curthread(); - - /* - * Flag the pthread kernel as executing scheduler code - * to avoid a signal from interrupting this execution and - * corrupting the (soon-to-be) current frame. - */ - _thread_kern_in_sched = 1; - - /* Restore the signal frame: */ - _thread_sigframe_restore(curthread, psf); - - /* The signal mask was restored; check for any pending signals: */ - curthread->check_pending = 1; - - /* Switch to the thread scheduler: */ - ___longjmp(_thread_kern_sched_jb, 1); -} - - -void -_thread_kern_sched(ucontext_t *ucp) -{ - struct pthread *curthread = _get_curthread(); - - /* - * Flag the pthread kernel as executing scheduler code - * to avoid a scheduler signal from interrupting this - * execution and calling the scheduler again. - */ - _thread_kern_in_sched = 1; - - /* Check if this function was called from the signal handler: */ - if (ucp != NULL) { - called_from_handler = 1; - DBG_MSG("Entering scheduler due to signal\n"); - } - - /* Save the state of the current thread: */ - if (_setjmp(curthread->ctx.jb) != 0) { - DBG_MSG("Returned from ___longjmp, thread %p\n", - curthread); - /* - * This point is reached when a longjmp() is called - * to restore the state of a thread. - * - * This is the normal way out of the scheduler. - */ - _thread_kern_in_sched = 0; - - if (curthread->sig_defer_count == 0) { - if (((curthread->cancelflags & - PTHREAD_AT_CANCEL_POINT) == 0) && - ((curthread->cancelflags & - PTHREAD_CANCEL_ASYNCHRONOUS) != 0)) - /* - * Cancellations override signals. - * - * Stick a cancellation point at the - * start of each async-cancellable - * thread's resumption. - * - * We allow threads woken at cancel - * points to do their own checks. - */ - pthread_testcancel(); - } - - if (_sched_switch_hook != NULL) { - /* Run the installed switch hook: */ - thread_run_switch_hook(_last_user_thread, curthread); - } - if (ucp == NULL) - return; - else { - /* - * Set the process signal mask in the context; it - * could have changed by the handler. - */ - ucp->uc_sigmask = _process_sigmask; - - /* Resume the interrupted thread: */ - __sys_sigreturn(ucp); - } - } - /* Switch to the thread scheduler: */ - ___longjmp(_thread_kern_sched_jb, 1); -} - -void -_thread_kern_sched_sig(void) -{ - struct pthread *curthread = _get_curthread(); - - curthread->check_pending = 1; - _thread_kern_sched(NULL); -} - - -void -_thread_kern_scheduler(void) -{ - struct timespec ts; - struct timeval tv; - struct pthread *curthread = _get_curthread(); - pthread_t pthread, pthread_h; - unsigned int current_tick; - int add_to_prioq; - - /* If the currently running thread is a user thread, save it: */ - if ((curthread->flags & PTHREAD_FLAGS_PRIVATE) == 0) - _last_user_thread = curthread; - - if (called_from_handler != 0) { - called_from_handler = 0; - - /* - * We were called from a signal handler; restore the process - * signal mask. - */ - if (__sys_sigprocmask(SIG_SETMASK, - &_process_sigmask, NULL) != 0) - PANIC("Unable to restore process mask after signal"); - } - - /* - * Enter a scheduling loop that finds the next thread that is - * ready to run. This loop completes when there are no more threads - * in the global list or when a thread has its state restored by - * either a sigreturn (if the state was saved as a sigcontext) or a - * longjmp (if the state was saved by a setjmp). - */ - while (!(TAILQ_EMPTY(&_thread_list))) { - /* Get the current time of day: */ - GET_CURRENT_TOD(tv); - TIMEVAL_TO_TIMESPEC(&tv, &ts); - current_tick = _sched_ticks; - - /* - * Protect the scheduling queues from access by the signal - * handler. - */ - _queue_signals = 1; - add_to_prioq = 0; - - if (curthread != &_thread_kern_thread) { - /* - * This thread no longer needs to yield the CPU. - */ - curthread->yield_on_sig_undefer = 0; - - if (curthread->state != PS_RUNNING) { - /* - * Save the current time as the time that the - * thread became inactive: - */ - curthread->last_inactive = (long)current_tick; - if (curthread->last_inactive < - curthread->last_active) { - /* Account for a rollover: */ - curthread->last_inactive =+ - UINT_MAX + 1; - } - } - - /* - * Place the currently running thread into the - * appropriate queue(s). - */ - switch (curthread->state) { - case PS_DEAD: - case PS_STATE_MAX: /* to silence -Wall */ - case PS_SUSPENDED: - /* - * Dead and suspended threads are not placed - * in any queue: - */ - break; - - case PS_RUNNING: - /* - * Runnable threads can't be placed in the - * priority queue until after waiting threads - * are polled (to preserve round-robin - * scheduling). - */ - add_to_prioq = 1; - break; - - /* - * States which do not depend on file descriptor I/O - * operations or timeouts: - */ - case PS_DEADLOCK: - case PS_FDLR_WAIT: - case PS_FDLW_WAIT: - case PS_FILE_WAIT: - case PS_JOIN: - case PS_MUTEX_WAIT: - case PS_SIGSUSPEND: - case PS_SIGTHREAD: - case PS_SIGWAIT: - case PS_WAIT_WAIT: - /* No timeouts for these states: */ - curthread->wakeup_time.tv_sec = -1; - curthread->wakeup_time.tv_nsec = -1; - - /* Restart the time slice: */ - curthread->slice_usec = -1; - - /* Insert into the waiting queue: */ - PTHREAD_WAITQ_INSERT(curthread); - break; - - /* States which can timeout: */ - case PS_COND_WAIT: - case PS_SLEEP_WAIT: - /* Restart the time slice: */ - curthread->slice_usec = -1; - - /* Insert into the waiting queue: */ - PTHREAD_WAITQ_INSERT(curthread); - break; - - /* States that require periodic work: */ - case PS_SPINBLOCK: - /* No timeouts for this state: */ - curthread->wakeup_time.tv_sec = -1; - curthread->wakeup_time.tv_nsec = -1; - - /* Increment spinblock count: */ - _spinblock_count++; - - /* FALLTHROUGH */ - case PS_FDR_WAIT: - case PS_FDW_WAIT: - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - /* Restart the time slice: */ - curthread->slice_usec = -1; - - /* Insert into the waiting queue: */ - PTHREAD_WAITQ_INSERT(curthread); - - /* Insert into the work queue: */ - PTHREAD_WORKQ_INSERT(curthread); - break; - } - - /* - * Are there pending signals for this thread? - * - * This check has to be performed after the thread - * has been placed in the queue(s) appropriate for - * its state. The process of adding pending signals - * can change a threads state, which in turn will - * attempt to add or remove the thread from any - * scheduling queue to which it belongs. - */ - if (curthread->check_pending != 0) { - curthread->check_pending = 0; - _thread_sig_check_pending(curthread); - } - } - - /* - * Avoid polling file descriptors if there are none - * waiting: - */ - if (TAILQ_EMPTY(&_workq) != 0) { - } - /* - * Poll file descriptors only if a new scheduling signal - * has occurred or if we have no more runnable threads. - */ - else if (((current_tick = _sched_ticks) != last_tick) || - ((curthread->state != PS_RUNNING) && - (PTHREAD_PRIOQ_FIRST() == NULL))) { - /* Unprotect the scheduling queues: */ - _queue_signals = 0; - - /* - * Poll file descriptors to update the state of threads - * waiting on file I/O where data may be available: - */ - thread_kern_poll(0); - - /* Protect the scheduling queues: */ - _queue_signals = 1; - } - last_tick = current_tick; - - /* - * Wake up threads that have timedout. This has to be - * done after polling in case a thread does a poll or - * select with zero time. - */ - PTHREAD_WAITQ_SETACTIVE(); - while (((pthread = TAILQ_FIRST(&_waitingq)) != NULL) && - (pthread->wakeup_time.tv_sec != -1) && - (((pthread->wakeup_time.tv_sec == 0) && - (pthread->wakeup_time.tv_nsec == 0)) || - (pthread->wakeup_time.tv_sec < ts.tv_sec) || - ((pthread->wakeup_time.tv_sec == ts.tv_sec) && - (pthread->wakeup_time.tv_nsec <= ts.tv_nsec)))) { - switch (pthread->state) { - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - /* Return zero file descriptors ready: */ - pthread->data.poll_data->nfds = 0; - /* FALLTHROUGH */ - default: - /* - * Remove this thread from the waiting queue - * (and work queue if necessary) and place it - * in the ready queue. - */ - PTHREAD_WAITQ_CLEARACTIVE(); - if (pthread->flags & PTHREAD_FLAGS_IN_WORKQ) - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - break; - } - /* - * Flag the timeout in the thread structure: - */ - pthread->timeout = 1; - } - PTHREAD_WAITQ_CLEARACTIVE(); - - /* - * Check to see if the current thread needs to be added - * to the priority queue: - */ - if (add_to_prioq != 0) { - /* - * Save the current time as the time that the - * thread became inactive: - */ - current_tick = _sched_ticks; - curthread->last_inactive = (long)current_tick; - if (curthread->last_inactive < - curthread->last_active) { - /* Account for a rollover: */ - curthread->last_inactive =+ UINT_MAX + 1; - } - - if ((curthread->slice_usec != -1) && - (curthread->attr.sched_policy != SCHED_FIFO)) { - /* - * Accumulate the number of microseconds for - * which the current thread has run: - */ - curthread->slice_usec += - (curthread->last_inactive - - curthread->last_active) * - (long)_clock_res_usec; - /* Check for time quantum exceeded: */ - if (curthread->slice_usec > TIMESLICE_USEC) - curthread->slice_usec = -1; - } - - if (curthread->slice_usec == -1) { - /* - * The thread exceeded its time - * quantum or it yielded the CPU; - * place it at the tail of the - * queue for its priority. - */ - PTHREAD_PRIOQ_INSERT_TAIL(curthread); - } else { - /* - * The thread hasn't exceeded its - * interval. Place it at the head - * of the queue for its priority. - */ - PTHREAD_PRIOQ_INSERT_HEAD(curthread); - } - } - - /* - * Get the highest priority thread in the ready queue. - */ - pthread_h = PTHREAD_PRIOQ_FIRST(); - - /* Check if there are no threads ready to run: */ - if (pthread_h == NULL) { - /* - * Lock the pthread kernel by changing the pointer to - * the running thread to point to the global kernel - * thread structure: - */ - _set_curthread(&_thread_kern_thread); - curthread = &_thread_kern_thread; - - DBG_MSG("No runnable threads, using kernel thread %p\n", - curthread); - - /* Unprotect the scheduling queues: */ - _queue_signals = 0; - - /* - * There are no threads ready to run, so wait until - * something happens that changes this condition: - */ - thread_kern_poll(1); - - /* - * This process' usage will likely be very small - * while waiting in a poll. Since the scheduling - * clock is based on the profiling timer, it is - * unlikely that the profiling timer will fire - * and update the time of day. To account for this, - * get the time of day after polling with a timeout. - */ - gettimeofday((struct timeval *) &_sched_tod, NULL); - - /* Check once more for a runnable thread: */ - _queue_signals = 1; - pthread_h = PTHREAD_PRIOQ_FIRST(); - _queue_signals = 0; - } - - if (pthread_h != NULL) { - /* Remove the thread from the ready queue: */ - PTHREAD_PRIOQ_REMOVE(pthread_h); - - /* Unprotect the scheduling queues: */ - _queue_signals = 0; - - /* - * Check for signals queued while the scheduling - * queues were protected: - */ - while (_sigq_check_reqd != 0) { - /* Clear before handling queued signals: */ - _sigq_check_reqd = 0; - - /* Protect the scheduling queues again: */ - _queue_signals = 1; - - dequeue_signals(); - - /* - * Check for a higher priority thread that - * became runnable due to signal handling. - */ - if (((pthread = PTHREAD_PRIOQ_FIRST()) != NULL) && - (pthread->active_priority > pthread_h->active_priority)) { - /* Remove the thread from the ready queue: */ - PTHREAD_PRIOQ_REMOVE(pthread); - - /* - * Insert the lower priority thread - * at the head of its priority list: - */ - PTHREAD_PRIOQ_INSERT_HEAD(pthread_h); - - /* There's a new thread in town: */ - pthread_h = pthread; - } - - /* Unprotect the scheduling queues: */ - _queue_signals = 0; - } - - /* Make the selected thread the current thread: */ - _set_curthread(pthread_h); - curthread = pthread_h; - - /* - * Save the current time as the time that the thread - * became active: - */ - current_tick = _sched_ticks; - curthread->last_active = (long) current_tick; - - /* - * Check if this thread is running for the first time - * or running again after using its full time slice - * allocation: - */ - if (curthread->slice_usec == -1) { - /* Reset the accumulated time slice period: */ - curthread->slice_usec = 0; - } - - /* - * If we had a context switch, run any - * installed switch hooks. - */ - if ((_sched_switch_hook != NULL) && - (_last_user_thread != curthread)) { - thread_run_switch_hook(_last_user_thread, - curthread); - } - /* - * Continue the thread at its current frame: - */ -#if NOT_YET - _setcontext(&curthread->ctx.uc); -#else - ___longjmp(curthread->ctx.jb, 1); -#endif - /* This point should not be reached. */ - PANIC("Thread has returned from sigreturn or longjmp"); - } - } - - /* There are no more threads, so exit this process: */ - exit(0); -} - -void -_thread_kern_sched_state(enum pthread_state state, char *fname, int lineno) -{ - struct pthread *curthread = _get_curthread(); - - /* - * Flag the pthread kernel as executing scheduler code - * to avoid a scheduler signal from interrupting this - * execution and calling the scheduler again. - */ - _thread_kern_in_sched = 1; - - /* - * Prevent the signal handler from fiddling with this thread - * before its state is set and is placed into the proper queue. - */ - _queue_signals = 1; - - /* Change the state of the current thread: */ - curthread->state = state; - curthread->fname = fname; - curthread->lineno = lineno; - - /* Schedule the next thread that is ready: */ - _thread_kern_sched(NULL); -} - -void -_thread_kern_sched_state_unlock(enum pthread_state state, - spinlock_t *lock, char *fname, int lineno) -{ - struct pthread *curthread = _get_curthread(); - - /* - * Flag the pthread kernel as executing scheduler code - * to avoid a scheduler signal from interrupting this - * execution and calling the scheduler again. - */ - _thread_kern_in_sched = 1; - - /* - * Prevent the signal handler from fiddling with this thread - * before its state is set and it is placed into the proper - * queue(s). - */ - _queue_signals = 1; - - /* Change the state of the current thread: */ - curthread->state = state; - curthread->fname = fname; - curthread->lineno = lineno; - - _SPINUNLOCK(lock); - - /* Schedule the next thread that is ready: */ - _thread_kern_sched(NULL); -} - -static void -thread_kern_poll(int wait_reqd) -{ - int count = 0; - int i, found; - int kern_pipe_added = 0; - int nfds = 0; - int timeout_ms = 0; - struct pthread *pthread; - struct timespec ts; - struct timeval tv; - - /* Check if the caller wants to wait: */ - if (wait_reqd == 0) { - timeout_ms = 0; - } - else { - /* Get the current time of day: */ - GET_CURRENT_TOD(tv); - TIMEVAL_TO_TIMESPEC(&tv, &ts); - - _queue_signals = 1; - pthread = TAILQ_FIRST(&_waitingq); - _queue_signals = 0; - - if ((pthread == NULL) || (pthread->wakeup_time.tv_sec == -1)) { - /* - * Either there are no threads in the waiting queue, - * or there are no threads that can timeout. - */ - timeout_ms = INFTIM; - } - else if (pthread->wakeup_time.tv_sec - ts.tv_sec > 60000) - /* Limit maximum timeout to prevent rollover. */ - timeout_ms = 60000; - else { - /* - * Calculate the time left for the next thread to - * timeout: - */ - timeout_ms = ((pthread->wakeup_time.tv_sec - ts.tv_sec) * - 1000) + ((pthread->wakeup_time.tv_nsec - ts.tv_nsec) / - 1000000); - /* - * Don't allow negative timeouts: - */ - if (timeout_ms < 0) - timeout_ms = 0; - } - } - - /* Protect the scheduling queues: */ - _queue_signals = 1; - - /* - * Check to see if the signal queue needs to be walked to look - * for threads awoken by a signal while in the scheduler. - */ - if (_sigq_check_reqd != 0) { - /* Reset flag before handling queued signals: */ - _sigq_check_reqd = 0; - - dequeue_signals(); - } - - /* - * Check for a thread that became runnable due to a signal: - */ - if (PTHREAD_PRIOQ_FIRST() != NULL) { - /* - * Since there is at least one runnable thread, - * disable the wait. - */ - timeout_ms = 0; - } - - /* - * Form the poll table: - */ - nfds = 0; - if (timeout_ms != 0) { - /* Add the kernel pipe to the poll table: */ - _thread_pfd_table[nfds].fd = _thread_kern_pipe[0]; - _thread_pfd_table[nfds].events = POLLRDNORM; - _thread_pfd_table[nfds].revents = 0; - nfds++; - kern_pipe_added = 1; - } - - PTHREAD_WAITQ_SETACTIVE(); - TAILQ_FOREACH(pthread, &_workq, qe) { - switch (pthread->state) { - case PS_SPINBLOCK: - /* - * If the lock is available, let the thread run. - */ - if (pthread->data.spinlock->access_lock == 0) { - PTHREAD_WAITQ_CLEARACTIVE(); - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - /* One less thread in a spinblock state: */ - _spinblock_count--; - /* - * Since there is at least one runnable - * thread, disable the wait. - */ - timeout_ms = 0; - } - break; - - /* File descriptor read wait: */ - case PS_FDR_WAIT: - /* Limit number of polled files to table size: */ - if (nfds < _thread_dtablesize) { - _thread_pfd_table[nfds].events = POLLRDNORM; - _thread_pfd_table[nfds].fd = pthread->data.fd.fd; - nfds++; - } - break; - - /* File descriptor write wait: */ - case PS_FDW_WAIT: - /* Limit number of polled files to table size: */ - if (nfds < _thread_dtablesize) { - _thread_pfd_table[nfds].events = POLLWRNORM; - _thread_pfd_table[nfds].fd = pthread->data.fd.fd; - nfds++; - } - break; - - /* File descriptor poll or select wait: */ - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - /* Limit number of polled files to table size: */ - if (pthread->data.poll_data->nfds + nfds < - _thread_dtablesize) { - for (i = 0; i < pthread->data.poll_data->nfds; i++) { - _thread_pfd_table[nfds + i].fd = - pthread->data.poll_data->fds[i].fd; - _thread_pfd_table[nfds + i].events = - pthread->data.poll_data->fds[i].events; - } - nfds += pthread->data.poll_data->nfds; - } - break; - - /* Other states do not depend on file I/O. */ - default: - break; - } - } - PTHREAD_WAITQ_CLEARACTIVE(); - - /* - * Wait for a file descriptor to be ready for read, write, or - * an exception, or a timeout to occur: - */ - count = __sys_poll(_thread_pfd_table, nfds, timeout_ms); - - if (kern_pipe_added != 0) - /* - * Remove the pthread kernel pipe file descriptor - * from the pollfd table: - */ - nfds = 1; - else - nfds = 0; - - /* - * Check if it is possible that there are bytes in the kernel - * read pipe waiting to be read: - */ - if (count < 0 || ((kern_pipe_added != 0) && - (_thread_pfd_table[0].revents & POLLRDNORM))) { - /* - * If the kernel read pipe was included in the - * count: - */ - if (count > 0) { - /* Decrement the count of file descriptors: */ - count--; - } - - if (_sigq_check_reqd != 0) { - /* Reset flag before handling signals: */ - _sigq_check_reqd = 0; - - dequeue_signals(); - } - } - - /* - * Check if any file descriptors are ready: - */ - if (count > 0) { - /* - * Enter a loop to look for threads waiting on file - * descriptors that are flagged as available by the - * _poll syscall: - */ - PTHREAD_WAITQ_SETACTIVE(); - TAILQ_FOREACH(pthread, &_workq, qe) { - switch (pthread->state) { - case PS_SPINBLOCK: - /* - * If the lock is available, let the thread run. - */ - if (pthread->data.spinlock->access_lock == 0) { - PTHREAD_WAITQ_CLEARACTIVE(); - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - - /* - * One less thread in a spinblock state: - */ - _spinblock_count--; - } - break; - - /* File descriptor read wait: */ - case PS_FDR_WAIT: - if ((nfds < _thread_dtablesize) && - (_thread_pfd_table[nfds].revents - & (POLLRDNORM|POLLERR|POLLHUP|POLLNVAL)) - != 0) { - PTHREAD_WAITQ_CLEARACTIVE(); - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - } - nfds++; - break; - - /* File descriptor write wait: */ - case PS_FDW_WAIT: - if ((nfds < _thread_dtablesize) && - (_thread_pfd_table[nfds].revents - & (POLLWRNORM|POLLERR|POLLHUP|POLLNVAL)) - != 0) { - PTHREAD_WAITQ_CLEARACTIVE(); - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - } - nfds++; - break; - - /* File descriptor poll or select wait: */ - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - if (pthread->data.poll_data->nfds + nfds < - _thread_dtablesize) { - /* - * Enter a loop looking for I/O - * readiness: - */ - found = 0; - for (i = 0; i < pthread->data.poll_data->nfds; i++) { - if (_thread_pfd_table[nfds + i].revents != 0) { - pthread->data.poll_data->fds[i].revents = - _thread_pfd_table[nfds + i].revents; - found++; - } - } - - /* Increment before destroying: */ - nfds += pthread->data.poll_data->nfds; - - if (found != 0) { - pthread->data.poll_data->nfds = found; - PTHREAD_WAITQ_CLEARACTIVE(); - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - } - } - else - nfds += pthread->data.poll_data->nfds; - break; - - /* Other states do not depend on file I/O. */ - default: - break; - } - } - PTHREAD_WAITQ_CLEARACTIVE(); - } - else if (_spinblock_count != 0) { - /* - * Enter a loop to look for threads waiting on a spinlock - * that is now available. - */ - PTHREAD_WAITQ_SETACTIVE(); - TAILQ_FOREACH(pthread, &_workq, qe) { - if (pthread->state == PS_SPINBLOCK) { - /* - * If the lock is available, let the thread run. - */ - if (pthread->data.spinlock->access_lock == 0) { - PTHREAD_WAITQ_CLEARACTIVE(); - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - PTHREAD_WAITQ_SETACTIVE(); - - /* - * One less thread in a spinblock state: - */ - _spinblock_count--; - } - } - } - PTHREAD_WAITQ_CLEARACTIVE(); - } - - /* Unprotect the scheduling queues: */ - _queue_signals = 0; - - while (_sigq_check_reqd != 0) { - /* Handle queued signals: */ - _sigq_check_reqd = 0; - - /* Protect the scheduling queues: */ - _queue_signals = 1; - - dequeue_signals(); - - /* Unprotect the scheduling queues: */ - _queue_signals = 0; - } -} - -void -_thread_kern_set_timeout(const struct timespec * timeout) -{ - struct pthread *curthread = _get_curthread(); - struct timespec current_time; - struct timeval tv; - - /* Reset the timeout flag for the running thread: */ - curthread->timeout = 0; - - /* Check if the thread is to wait forever: */ - if (timeout == NULL) { - /* - * Set the wakeup time to something that can be recognised as - * different to an actual time of day: - */ - curthread->wakeup_time.tv_sec = -1; - curthread->wakeup_time.tv_nsec = -1; - } - /* Check if no waiting is required: */ - else if (timeout->tv_sec == 0 && timeout->tv_nsec == 0) { - /* Set the wake up time to 'immediately': */ - curthread->wakeup_time.tv_sec = 0; - curthread->wakeup_time.tv_nsec = 0; - } else { - /* Get the current time: */ - GET_CURRENT_TOD(tv); - TIMEVAL_TO_TIMESPEC(&tv, ¤t_time); - - /* Calculate the time for the current thread to wake up: */ - curthread->wakeup_time.tv_sec = current_time.tv_sec + timeout->tv_sec; - curthread->wakeup_time.tv_nsec = current_time.tv_nsec + timeout->tv_nsec; - - /* Check if the nanosecond field needs to wrap: */ - if (curthread->wakeup_time.tv_nsec >= 1000000000) { - /* Wrap the nanosecond field: */ - curthread->wakeup_time.tv_sec += 1; - curthread->wakeup_time.tv_nsec -= 1000000000; - } - } -} - -void -_thread_kern_sig_defer(void) -{ - struct pthread *curthread = _get_curthread(); - - /* Allow signal deferral to be recursive. */ - curthread->sig_defer_count++; -} - -void -_thread_kern_sig_undefer(void) -{ - struct pthread *curthread = _get_curthread(); - - /* - * Perform checks to yield only if we are about to undefer - * signals. - */ - if (curthread->sig_defer_count > 1) { - /* Decrement the signal deferral count. */ - curthread->sig_defer_count--; - } - else if (curthread->sig_defer_count == 1) { - /* Reenable signals: */ - curthread->sig_defer_count = 0; - - /* - * Check if there are queued signals: - */ - if (_sigq_check_reqd != 0) - _thread_kern_sched(NULL); - - /* - * Check for asynchronous cancellation before delivering any - * pending signals: - */ - if (((curthread->cancelflags & PTHREAD_AT_CANCEL_POINT) == 0) && - ((curthread->cancelflags & PTHREAD_CANCEL_ASYNCHRONOUS) != 0)) - pthread_testcancel(); - - /* - * If there are pending signals or this thread has - * to yield the CPU, call the kernel scheduler: - * - * XXX - Come back and revisit the pending signal problem - */ - if ((curthread->yield_on_sig_undefer != 0) || - SIGNOTEMPTY(curthread->sigpend)) { - curthread->yield_on_sig_undefer = 0; - _thread_kern_sched(NULL); - } - } -} - -static void -dequeue_signals(void) -{ - char bufr[128]; - int num; - - /* - * Enter a loop to clear the pthread kernel pipe: - */ - while (((num = __sys_read(_thread_kern_pipe[0], bufr, - sizeof(bufr))) > 0) || (num == -1 && errno == EINTR)) { - } - if ((num < 0) && (errno != EAGAIN)) { - /* - * The only error we should expect is if there is - * no data to read. - */ - PANIC("Unable to read from thread kernel pipe"); - } - /* Handle any pending signals: */ - _thread_sig_handle_pending(); -} - -static inline void -thread_run_switch_hook(pthread_t thread_out, pthread_t thread_in) -{ - pthread_t tid_out = thread_out; - pthread_t tid_in = thread_in; - - if ((tid_out != NULL) && - (tid_out->flags & PTHREAD_FLAGS_PRIVATE) != 0) - tid_out = NULL; - if ((tid_in != NULL) && - (tid_in->flags & PTHREAD_FLAGS_PRIVATE) != 0) - tid_in = NULL; - - if ((_sched_switch_hook != NULL) && (tid_out != tid_in)) { - /* Run the scheduler switch hook: */ - _sched_switch_hook(tid_out, tid_in); - } -} - -struct pthread * -_get_curthread(void) -{ - if (_thread_initial == NULL) - _thread_init(); - - return (_thread_run); -} - -void -_set_curthread(struct pthread *newthread) -{ - _thread_run = newthread; -} diff --git a/lib/libc_r/uthread/uthread_kevent.c b/lib/libc_r/uthread/uthread_kevent.c deleted file mode 100644 index 17aeaea..0000000 --- a/lib/libc_r/uthread/uthread_kevent.c +++ /dev/null @@ -1,77 +0,0 @@ -/*- - * Copyright (c) 2000 Jonathan Lemon <jlemon@flugsvamp.com> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <unistd.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/event.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_kevent, kevent); - -int -_kevent(int kq, const struct kevent *changelist, int nchanges, - struct kevent *eventlist, int nevents, const struct timespec *timeout) -{ - struct pthread *curthread = _get_curthread(); - struct timespec nullts = { 0, 0 }; - int rc; - - /* Set the wake up time */ - _thread_kern_set_timeout(timeout); - - rc = __sys_kevent(kq, changelist, nchanges, - eventlist, nevents, &nullts); - if (rc == 0 && eventlist != NULL && nevents > 0 && (timeout == NULL || - timeout->tv_sec != 0 || timeout->tv_nsec != 0)) { - /* Save the socket file descriptor: */ - curthread->data.fd.fd = kq; - curthread->data.fd.fname = __FILE__; - curthread->data.fd.branch = __LINE__; - - do { - /* Reset the interrupted and timeout flags: */ - curthread->interrupted = 0; - curthread->timeout = 0; - - _thread_kern_sched_state(PS_FDR_WAIT, - __FILE__, __LINE__); - - if (curthread->interrupted) { - errno = EINTR; - rc = -1; - break; - } - rc = __sys_kevent(kq, NULL, 0, - eventlist, nevents, &nullts); - } while (rc == 0 && curthread->timeout == 0); - } - return (rc); -} diff --git a/lib/libc_r/uthread/uthread_kill.c b/lib/libc_r/uthread/uthread_kill.c deleted file mode 100644 index 985ba0c..0000000 --- a/lib/libc_r/uthread/uthread_kill.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <signal.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_kill, pthread_kill); - -int -_pthread_kill(pthread_t pthread, int sig) -{ - int ret; - - /* Check for invalid signal numbers: */ - if (sig < 0 || sig >= NSIG) - /* Invalid signal: */ - ret = EINVAL; - /* - * Ensure the thread is in the list of active threads, and the - * signal is valid (signal 0 specifies error checking only) and - * not being ignored: - */ - else if (((ret = _find_thread(pthread)) == 0) && (sig > 0) && - (_thread_sigact[sig - 1].sa_handler != SIG_IGN)) { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - _thread_sig_send(pthread, sig); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_kqueue.c b/lib/libc_r/uthread/uthread_kqueue.c deleted file mode 100644 index 15aceb0..0000000 --- a/lib/libc_r/uthread/uthread_kqueue.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (c) 2003 Mark Peek <mp@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/event.h> -#include <fcntl.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_kqueue, kqueue); - -int -_kqueue(void) -{ - int fd; - - /* Create a kqueue: */ - if ((fd = __sys_kqueue()) < 0) { - /* Error creating socket. */ - - /* Initialise the entry in the file descriptor table: */ - } else if (_thread_fd_table_init(fd) != 0) { - __sys_close(fd); - fd = -1; - } - return (fd); -} diff --git a/lib/libc_r/uthread/uthread_listen.c b/lib/libc_r/uthread/uthread_listen.c deleted file mode 100644 index 600a4cb..0000000 --- a/lib/libc_r/uthread/uthread_listen.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_listen, listen); - -int -_listen(int fd, int backlog) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_listen(fd, backlog); - _FD_UNLOCK(fd, FD_RDWR); - } - return (ret); -} - diff --git a/lib/libc_r/uthread/uthread_main_np.c b/lib/libc_r/uthread/uthread_main_np.c deleted file mode 100644 index 1c9c30b..0000000 --- a/lib/libc_r/uthread/uthread_main_np.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (c) 2001 Alfred Perlstein - * Author: Alfred Perlstein <alfred@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <pthread.h> -#include <pthread_np.h> -#include "pthread_private.h" - -__weak_reference(_pthread_main_np, pthread_main_np); - -/* - * Provide the equivalent to Solaris thr_main() function - */ -int -_pthread_main_np() -{ - - if (!_thread_initial) - return (-1); - else - return (pthread_equal(pthread_self(), _thread_initial) ? 1 : 0); -} diff --git a/lib/libc_r/uthread/uthread_mattr_init.c b/lib/libc_r/uthread/uthread_mattr_init.c deleted file mode 100644 index 5c1fb6f..0000000 --- a/lib/libc_r/uthread/uthread_mattr_init.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Jeffrey Hsu. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JEFFREY HSU AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_mutexattr_init, pthread_mutexattr_init); - -static struct pthread_mutex_attr default_mutexattr = PTHREAD_MUTEXATTR_DEFAULT; - -int -_pthread_mutexattr_init(pthread_mutexattr_t *attr) -{ - int ret; - pthread_mutexattr_t pattr; - - if ((pattr = (pthread_mutexattr_t) - malloc(sizeof(struct pthread_mutex_attr))) == NULL) { - ret = ENOMEM; - } else { - memcpy(pattr, &default_mutexattr, - sizeof(struct pthread_mutex_attr)); - *attr = pattr; - ret = 0; - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_mattr_kind_np.c b/lib/libc_r/uthread/uthread_mattr_kind_np.c deleted file mode 100644 index 08fb0db..0000000 --- a/lib/libc_r/uthread/uthread_mattr_kind_np.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Jeffrey Hsu. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JEFFREY HSU AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); -__weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); -__weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); -__weak_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); - -int -_pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) -{ - int ret; - if (attr == NULL || *attr == NULL) { - errno = EINVAL; - ret = -1; - } else { - (*attr)->m_type = kind; - ret = 0; - } - return(ret); -} - -int -_pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) -{ - int ret; - if (attr == NULL) { - errno = EINVAL; - ret = -1; - } else { - ret = attr->m_type; - } - return(ret); -} - -int -_pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) -{ - int ret; - if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { - errno = EINVAL; - ret = -1; - } else { - (*attr)->m_type = type; - ret = 0; - } - return(ret); -} - -int -_pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type) -{ - int ret; - - if (attr == NULL || *attr == NULL || (*attr)->m_type >= - PTHREAD_MUTEX_TYPE_MAX) { - ret = EINVAL; - } else { - *type = (*attr)->m_type; - ret = 0; - } - return ret; -} diff --git a/lib/libc_r/uthread/uthread_msync.c b/lib/libc_r/uthread/uthread_msync.c deleted file mode 100644 index 24cbaa6..0000000 --- a/lib/libc_r/uthread/uthread_msync.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * David Leonard <d@openbsd.org>, 1999. Public Domain. - * - * $OpenBSD: uthread_msync.c,v 1.2 1999/06/09 07:16:17 d Exp $ - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/mman.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__msync, msync); - -int -_msync(void *addr, size_t len, int flags) -{ - int ret; - - ret = __sys_msync(addr, len, flags); - - return (ret); -} - -int -__msync(void *addr, size_t len, int flags) -{ - int ret; - - /* - * XXX This is quite pointless unless we know how to get the - * file descriptor associated with the memory, and lock it for - * write. The only real use of this wrapper is to guarantee - * a cancellation point, as per the standard. sigh. - */ - _thread_enter_cancellation_point(); - ret = _msync(addr, len, flags); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_multi_np.c b/lib/libc_r/uthread/uthread_multi_np.c deleted file mode 100644 index 99b6df3..0000000 --- a/lib/libc_r/uthread/uthread_multi_np.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include <pthread_np.h> - -__weak_reference(_pthread_multi_np, pthread_multi_np); - -int -_pthread_multi_np() -{ - - /* Return to multi-threaded scheduling mode: */ - /* - * XXX - Do we want to do this? - * __is_threaded = 1; - */ - pthread_resume_all_np(); - return (0); -} diff --git a/lib/libc_r/uthread/uthread_mutex.c b/lib/libc_r/uthread/uthread_mutex.c deleted file mode 100644 index 47fd7f6..0000000 --- a/lib/libc_r/uthread/uthread_mutex.c +++ /dev/null @@ -1,1542 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <sys/param.h> -#include <sys/queue.h> -#include <pthread.h> -#include "pthread_private.h" - -#if defined(_PTHREADS_INVARIANTS) -#define _MUTEX_INIT_LINK(m) do { \ - (m)->m_qe.tqe_prev = NULL; \ - (m)->m_qe.tqe_next = NULL; \ -} while (0) -#define _MUTEX_ASSERT_IS_OWNED(m) do { \ - if ((m)->m_qe.tqe_prev == NULL) \ - PANIC("mutex is not on list"); \ -} while (0) -#define _MUTEX_ASSERT_NOT_OWNED(m) do { \ - if (((m)->m_qe.tqe_prev != NULL) || \ - ((m)->m_qe.tqe_next != NULL)) \ - PANIC("mutex is on list"); \ -} while (0) -#else -#define _MUTEX_INIT_LINK(m) -#define _MUTEX_ASSERT_IS_OWNED(m) -#define _MUTEX_ASSERT_NOT_OWNED(m) -#endif - -/* - * Prototypes - */ -static inline int mutex_self_trylock(pthread_mutex_t); -static inline int mutex_self_lock(pthread_mutex_t); -static inline int mutex_unlock_common(pthread_mutex_t *, int); -static void mutex_priority_adjust(pthread_mutex_t); -static void mutex_rescan_owned (pthread_t, pthread_mutex_t); -static inline pthread_t mutex_queue_deq(pthread_mutex_t); -static inline void mutex_queue_remove(pthread_mutex_t, pthread_t); -static inline void mutex_queue_enq(pthread_mutex_t, pthread_t); - - -static spinlock_t static_init_lock = _SPINLOCK_INITIALIZER; - -static struct pthread_mutex_attr static_mutex_attr = - PTHREAD_MUTEXATTR_STATIC_INITIALIZER; -static pthread_mutexattr_t static_mattr = &static_mutex_attr; - -/* Single underscore versions provided for libc internal usage: */ -__weak_reference(__pthread_mutex_trylock, pthread_mutex_trylock); -__weak_reference(__pthread_mutex_lock, pthread_mutex_lock); - -/* No difference between libc and application usage of these: */ -__weak_reference(_pthread_mutex_init, pthread_mutex_init); -__weak_reference(_pthread_mutex_destroy, pthread_mutex_destroy); -__weak_reference(_pthread_mutex_unlock, pthread_mutex_unlock); - - -/* - * Reinitialize a private mutex; this is only used for internal mutexes. - */ -int -_mutex_reinit(pthread_mutex_t * mutex) -{ - int ret = 0; - - if (mutex == NULL) - ret = EINVAL; - else if (*mutex == NULL) - ret = _pthread_mutex_init(mutex, NULL); - else { - /* - * Initialize the mutex structure: - */ - (*mutex)->m_type = PTHREAD_MUTEX_DEFAULT; - (*mutex)->m_protocol = PTHREAD_PRIO_NONE; - TAILQ_INIT(&(*mutex)->m_queue); - (*mutex)->m_owner = NULL; - (*mutex)->m_data.m_count = 0; - (*mutex)->m_flags |= MUTEX_FLAGS_INITED | MUTEX_FLAGS_PRIVATE; - (*mutex)->m_refcount = 0; - (*mutex)->m_prio = 0; - (*mutex)->m_saved_prio = 0; - _MUTEX_INIT_LINK(*mutex); - memset(&(*mutex)->lock, 0, sizeof((*mutex)->lock)); - } - return (ret); -} - -int -_pthread_mutex_init(pthread_mutex_t * mutex, - const pthread_mutexattr_t * mutex_attr) -{ - enum pthread_mutextype type; - int protocol; - int ceiling; - int flags; - pthread_mutex_t pmutex; - int ret = 0; - - if (mutex == NULL) - ret = EINVAL; - - /* Check if default mutex attributes: */ - if (mutex_attr == NULL || *mutex_attr == NULL) { - /* Default to a (error checking) POSIX mutex: */ - type = PTHREAD_MUTEX_ERRORCHECK; - protocol = PTHREAD_PRIO_NONE; - ceiling = PTHREAD_MAX_PRIORITY; - flags = 0; - } - - /* Check mutex type: */ - else if (((*mutex_attr)->m_type < PTHREAD_MUTEX_ERRORCHECK) || - ((*mutex_attr)->m_type >= PTHREAD_MUTEX_TYPE_MAX)) - /* Return an invalid argument error: */ - ret = EINVAL; - - /* Check mutex protocol: */ - else if (((*mutex_attr)->m_protocol < PTHREAD_PRIO_NONE) || - ((*mutex_attr)->m_protocol > PTHREAD_MUTEX_RECURSIVE)) - /* Return an invalid argument error: */ - ret = EINVAL; - - else { - /* Use the requested mutex type and protocol: */ - type = (*mutex_attr)->m_type; - protocol = (*mutex_attr)->m_protocol; - ceiling = (*mutex_attr)->m_ceiling; - flags = (*mutex_attr)->m_flags; - } - - /* Check no errors so far: */ - if (ret == 0) { - if ((pmutex = (pthread_mutex_t) - malloc(sizeof(struct pthread_mutex))) == NULL) - ret = ENOMEM; - else { - /* Set the mutex flags: */ - pmutex->m_flags = flags; - - /* Process according to mutex type: */ - switch (type) { - /* case PTHREAD_MUTEX_DEFAULT: */ - case PTHREAD_MUTEX_ERRORCHECK: - case PTHREAD_MUTEX_NORMAL: - /* Nothing to do here. */ - break; - - /* Single UNIX Spec 2 recursive mutex: */ - case PTHREAD_MUTEX_RECURSIVE: - /* Reset the mutex count: */ - pmutex->m_data.m_count = 0; - break; - - /* Trap invalid mutex types: */ - default: - /* Return an invalid argument error: */ - ret = EINVAL; - break; - } - if (ret == 0) { - /* Initialise the rest of the mutex: */ - TAILQ_INIT(&pmutex->m_queue); - pmutex->m_flags |= MUTEX_FLAGS_INITED; - pmutex->m_owner = NULL; - pmutex->m_type = type; - pmutex->m_protocol = protocol; - pmutex->m_refcount = 0; - if (protocol == PTHREAD_PRIO_PROTECT) - pmutex->m_prio = ceiling; - else - pmutex->m_prio = 0; - pmutex->m_saved_prio = 0; - _MUTEX_INIT_LINK(pmutex); - memset(&pmutex->lock, 0, sizeof(pmutex->lock)); - *mutex = pmutex; - } else { - free(pmutex); - *mutex = NULL; - } - } - } - /* Return the completion status: */ - return (ret); -} - -int -_pthread_mutex_destroy(pthread_mutex_t * mutex) -{ - int ret = 0; - - if (mutex == NULL || *mutex == NULL) - ret = EINVAL; - else { - /* Lock the mutex structure: */ - _SPINLOCK(&(*mutex)->lock); - - /* - * Check to see if this mutex is in use: - */ - if (((*mutex)->m_owner != NULL) || - (TAILQ_FIRST(&(*mutex)->m_queue) != NULL) || - ((*mutex)->m_refcount != 0)) { - ret = EBUSY; - - /* Unlock the mutex structure: */ - _SPINUNLOCK(&(*mutex)->lock); - } - else { - /* - * Free the memory allocated for the mutex - * structure: - */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - free(*mutex); - - /* - * Leave the caller's pointer NULL now that - * the mutex has been destroyed: - */ - *mutex = NULL; - } - } - - /* Return the completion status: */ - return (ret); -} - -static int -init_static(pthread_mutex_t *mutex) -{ - int ret; - - _SPINLOCK(&static_init_lock); - - if (*mutex == NULL) - ret = _pthread_mutex_init(mutex, NULL); - else - ret = 0; - - _SPINUNLOCK(&static_init_lock); - - return (ret); -} - -static int -init_static_private(pthread_mutex_t *mutex) -{ - int ret; - - _SPINLOCK(&static_init_lock); - - if (*mutex == NULL) - ret = _pthread_mutex_init(mutex, &static_mattr); - else - ret = 0; - - _SPINUNLOCK(&static_init_lock); - - return (ret); -} - -static int -mutex_trylock_common(pthread_mutex_t *mutex) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - - PTHREAD_ASSERT((mutex != NULL) && (*mutex != NULL), - "Uninitialized mutex in pthread_mutex_trylock_basic"); - - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Lock the mutex structure: */ - _SPINLOCK(&(*mutex)->lock); - - /* - * If the mutex was statically allocated, properly - * initialize the tail queue. - */ - if (((*mutex)->m_flags & MUTEX_FLAGS_INITED) == 0) { - TAILQ_INIT(&(*mutex)->m_queue); - _MUTEX_INIT_LINK(*mutex); - (*mutex)->m_flags |= MUTEX_FLAGS_INITED; - } - - /* Process according to mutex type: */ - switch ((*mutex)->m_protocol) { - /* Default POSIX mutex: */ - case PTHREAD_PRIO_NONE: - /* Check if this mutex is not locked: */ - if ((*mutex)->m_owner == NULL) { - /* Lock the mutex for the running thread: */ - (*mutex)->m_owner = curthread; - - /* Add to the list of owned mutexes: */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - TAILQ_INSERT_TAIL(&curthread->mutexq, - (*mutex), m_qe); - } else if ((*mutex)->m_owner == curthread) - ret = mutex_self_trylock(*mutex); - else - /* Return a busy error: */ - ret = EBUSY; - break; - - /* POSIX priority inheritence mutex: */ - case PTHREAD_PRIO_INHERIT: - /* Check if this mutex is not locked: */ - if ((*mutex)->m_owner == NULL) { - /* Lock the mutex for the running thread: */ - (*mutex)->m_owner = curthread; - - /* Track number of priority mutexes owned: */ - curthread->priority_mutex_count++; - - /* - * The mutex takes on the attributes of the - * running thread when there are no waiters. - */ - (*mutex)->m_prio = curthread->active_priority; - (*mutex)->m_saved_prio = - curthread->inherited_priority; - - /* Add to the list of owned mutexes: */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - TAILQ_INSERT_TAIL(&curthread->mutexq, - (*mutex), m_qe); - } else if ((*mutex)->m_owner == curthread) - ret = mutex_self_trylock(*mutex); - else - /* Return a busy error: */ - ret = EBUSY; - break; - - /* POSIX priority protection mutex: */ - case PTHREAD_PRIO_PROTECT: - /* Check for a priority ceiling violation: */ - if (curthread->active_priority > (*mutex)->m_prio) - ret = EINVAL; - - /* Check if this mutex is not locked: */ - else if ((*mutex)->m_owner == NULL) { - /* Lock the mutex for the running thread: */ - (*mutex)->m_owner = curthread; - - /* Track number of priority mutexes owned: */ - curthread->priority_mutex_count++; - - /* - * The running thread inherits the ceiling - * priority of the mutex and executes at that - * priority. - */ - curthread->active_priority = (*mutex)->m_prio; - (*mutex)->m_saved_prio = - curthread->inherited_priority; - curthread->inherited_priority = - (*mutex)->m_prio; - - /* Add to the list of owned mutexes: */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - TAILQ_INSERT_TAIL(&curthread->mutexq, - (*mutex), m_qe); - } else if ((*mutex)->m_owner == curthread) - ret = mutex_self_trylock(*mutex); - else - /* Return a busy error: */ - ret = EBUSY; - break; - - /* Trap invalid mutex types: */ - default: - /* Return an invalid argument error: */ - ret = EINVAL; - break; - } - - /* Unlock the mutex structure: */ - _SPINUNLOCK(&(*mutex)->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - - /* Return the completion status: */ - return (ret); -} - -int -__pthread_mutex_trylock(pthread_mutex_t *mutex) -{ - int ret = 0; - - if (mutex == NULL) - ret = EINVAL; - - /* - * If the mutex is statically initialized, perform the dynamic - * initialization: - */ - else if ((*mutex != NULL) || (ret = init_static(mutex)) == 0) - ret = mutex_trylock_common(mutex); - - return (ret); -} - -int -_pthread_mutex_trylock(pthread_mutex_t *mutex) -{ - int ret = 0; - - if (mutex == NULL) - ret = EINVAL; - - /* - * If the mutex is statically initialized, perform the dynamic - * initialization marking the mutex private (delete safe): - */ - else if ((*mutex != NULL) || (ret = init_static_private(mutex)) == 0) - ret = mutex_trylock_common(mutex); - - return (ret); -} - -static int -mutex_lock_common(pthread_mutex_t * mutex) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - - PTHREAD_ASSERT((mutex != NULL) && (*mutex != NULL), - "Uninitialized mutex in pthread_mutex_trylock_basic"); - - /* Reset the interrupted flag: */ - curthread->interrupted = 0; - - /* - * Enter a loop waiting to become the mutex owner. We need a - * loop in case the waiting thread is interrupted by a signal - * to execute a signal handler. It is not (currently) possible - * to remain in the waiting queue while running a handler. - * Instead, the thread is interrupted and backed out of the - * waiting queue prior to executing the signal handler. - */ - do { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Lock the mutex structure: */ - _SPINLOCK(&(*mutex)->lock); - - /* - * If the mutex was statically allocated, properly - * initialize the tail queue. - */ - if (((*mutex)->m_flags & MUTEX_FLAGS_INITED) == 0) { - TAILQ_INIT(&(*mutex)->m_queue); - (*mutex)->m_flags |= MUTEX_FLAGS_INITED; - _MUTEX_INIT_LINK(*mutex); - } - - /* Process according to mutex type: */ - switch ((*mutex)->m_protocol) { - /* Default POSIX mutex: */ - case PTHREAD_PRIO_NONE: - if ((*mutex)->m_owner == NULL) { - /* Lock the mutex for this thread: */ - (*mutex)->m_owner = curthread; - - /* Add to the list of owned mutexes: */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - TAILQ_INSERT_TAIL(&curthread->mutexq, - (*mutex), m_qe); - - } else if ((*mutex)->m_owner == curthread) - ret = mutex_self_lock(*mutex); - else { - /* - * Join the queue of threads waiting to lock - * the mutex: - */ - mutex_queue_enq(*mutex, curthread); - - /* - * Keep a pointer to the mutex this thread - * is waiting on: - */ - curthread->data.mutex = *mutex; - - /* - * Unlock the mutex structure and schedule the - * next thread: - */ - _thread_kern_sched_state_unlock(PS_MUTEX_WAIT, - &(*mutex)->lock, __FILE__, __LINE__); - - /* Lock the mutex structure again: */ - _SPINLOCK(&(*mutex)->lock); - } - break; - - /* POSIX priority inheritence mutex: */ - case PTHREAD_PRIO_INHERIT: - /* Check if this mutex is not locked: */ - if ((*mutex)->m_owner == NULL) { - /* Lock the mutex for this thread: */ - (*mutex)->m_owner = curthread; - - /* Track number of priority mutexes owned: */ - curthread->priority_mutex_count++; - - /* - * The mutex takes on attributes of the - * running thread when there are no waiters. - */ - (*mutex)->m_prio = curthread->active_priority; - (*mutex)->m_saved_prio = - curthread->inherited_priority; - curthread->inherited_priority = - (*mutex)->m_prio; - - /* Add to the list of owned mutexes: */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - TAILQ_INSERT_TAIL(&curthread->mutexq, - (*mutex), m_qe); - - } else if ((*mutex)->m_owner == curthread) - ret = mutex_self_lock(*mutex); - else { - /* - * Join the queue of threads waiting to lock - * the mutex: - */ - mutex_queue_enq(*mutex, curthread); - - /* - * Keep a pointer to the mutex this thread - * is waiting on: - */ - curthread->data.mutex = *mutex; - - if (curthread->active_priority > - (*mutex)->m_prio) - /* Adjust priorities: */ - mutex_priority_adjust(*mutex); - - /* - * Unlock the mutex structure and schedule the - * next thread: - */ - _thread_kern_sched_state_unlock(PS_MUTEX_WAIT, - &(*mutex)->lock, __FILE__, __LINE__); - - /* Lock the mutex structure again: */ - _SPINLOCK(&(*mutex)->lock); - } - break; - - /* POSIX priority protection mutex: */ - case PTHREAD_PRIO_PROTECT: - /* Check for a priority ceiling violation: */ - if (curthread->active_priority > (*mutex)->m_prio) - ret = EINVAL; - - /* Check if this mutex is not locked: */ - else if ((*mutex)->m_owner == NULL) { - /* - * Lock the mutex for the running - * thread: - */ - (*mutex)->m_owner = curthread; - - /* Track number of priority mutexes owned: */ - curthread->priority_mutex_count++; - - /* - * The running thread inherits the ceiling - * priority of the mutex and executes at that - * priority: - */ - curthread->active_priority = (*mutex)->m_prio; - (*mutex)->m_saved_prio = - curthread->inherited_priority; - curthread->inherited_priority = - (*mutex)->m_prio; - - /* Add to the list of owned mutexes: */ - _MUTEX_ASSERT_NOT_OWNED(*mutex); - TAILQ_INSERT_TAIL(&curthread->mutexq, - (*mutex), m_qe); - } else if ((*mutex)->m_owner == curthread) - ret = mutex_self_lock(*mutex); - else { - /* - * Join the queue of threads waiting to lock - * the mutex: - */ - mutex_queue_enq(*mutex, curthread); - - /* - * Keep a pointer to the mutex this thread - * is waiting on: - */ - curthread->data.mutex = *mutex; - - /* Clear any previous error: */ - curthread->error = 0; - - /* - * Unlock the mutex structure and schedule the - * next thread: - */ - _thread_kern_sched_state_unlock(PS_MUTEX_WAIT, - &(*mutex)->lock, __FILE__, __LINE__); - - /* Lock the mutex structure again: */ - _SPINLOCK(&(*mutex)->lock); - - /* - * The threads priority may have changed while - * waiting for the mutex causing a ceiling - * violation. - */ - ret = curthread->error; - curthread->error = 0; - } - break; - - /* Trap invalid mutex types: */ - default: - /* Return an invalid argument error: */ - ret = EINVAL; - break; - } - - /* - * Check to see if this thread was interrupted and - * is still in the mutex queue of waiting threads: - */ - if (curthread->interrupted != 0) - mutex_queue_remove(*mutex, curthread); - - /* Unlock the mutex structure: */ - _SPINUNLOCK(&(*mutex)->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } while (((*mutex)->m_owner != curthread) && (ret == 0) && - (curthread->interrupted == 0)); - - if (curthread->interrupted != 0 && - curthread->continuation != NULL) - curthread->continuation((void *) curthread); - - /* Return the completion status: */ - return (ret); -} - -int -__pthread_mutex_lock(pthread_mutex_t *mutex) -{ - int ret = 0; - - if (_thread_initial == NULL) - _thread_init(); - - if (mutex == NULL) - ret = EINVAL; - - /* - * If the mutex is statically initialized, perform the dynamic - * initialization: - */ - else if ((*mutex != NULL) || ((ret = init_static(mutex)) == 0)) - ret = mutex_lock_common(mutex); - - return (ret); -} - -int -_pthread_mutex_lock(pthread_mutex_t *mutex) -{ - int ret = 0; - - if (_thread_initial == NULL) - _thread_init(); - - if (mutex == NULL) - ret = EINVAL; - - /* - * If the mutex is statically initialized, perform the dynamic - * initialization marking it private (delete safe): - */ - else if ((*mutex != NULL) || ((ret = init_static_private(mutex)) == 0)) - ret = mutex_lock_common(mutex); - - return (ret); -} - -int -_pthread_mutex_unlock(pthread_mutex_t * mutex) -{ - return (mutex_unlock_common(mutex, /* add reference */ 0)); -} - -int -_mutex_cv_unlock(pthread_mutex_t * mutex) -{ - return (mutex_unlock_common(mutex, /* add reference */ 1)); -} - -int -_mutex_cv_lock(pthread_mutex_t * mutex) -{ - int ret; - if ((ret = _pthread_mutex_lock(mutex)) == 0) - (*mutex)->m_refcount--; - return (ret); -} - -static inline int -mutex_self_trylock(pthread_mutex_t mutex) -{ - int ret = 0; - - switch (mutex->m_type) { - - /* case PTHREAD_MUTEX_DEFAULT: */ - case PTHREAD_MUTEX_ERRORCHECK: - case PTHREAD_MUTEX_NORMAL: - /* - * POSIX specifies that mutexes should return EDEADLK if a - * recursive lock is detected. - */ - ret = EBUSY; - break; - - case PTHREAD_MUTEX_RECURSIVE: - /* Increment the lock count: */ - mutex->m_data.m_count++; - break; - - default: - /* Trap invalid mutex types; */ - ret = EINVAL; - } - - return (ret); -} - -static inline int -mutex_self_lock(pthread_mutex_t mutex) -{ - int ret = 0; - - switch (mutex->m_type) { - /* case PTHREAD_MUTEX_DEFAULT: */ - case PTHREAD_MUTEX_ERRORCHECK: - /* - * POSIX specifies that mutexes should return EDEADLK if a - * recursive lock is detected. - */ - ret = EDEADLK; - break; - - case PTHREAD_MUTEX_NORMAL: - /* - * What SS2 define as a 'normal' mutex. Intentionally - * deadlock on attempts to get a lock you already own. - */ - _thread_kern_sched_state_unlock(PS_DEADLOCK, - &mutex->lock, __FILE__, __LINE__); - break; - - case PTHREAD_MUTEX_RECURSIVE: - /* Increment the lock count: */ - mutex->m_data.m_count++; - break; - - default: - /* Trap invalid mutex types; */ - ret = EINVAL; - } - - return (ret); -} - -static inline int -mutex_unlock_common(pthread_mutex_t * mutex, int add_reference) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - - if (mutex == NULL || *mutex == NULL) { - ret = EINVAL; - } else { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - /* Lock the mutex structure: */ - _SPINLOCK(&(*mutex)->lock); - - /* Process according to mutex type: */ - switch ((*mutex)->m_protocol) { - /* Default POSIX mutex: */ - case PTHREAD_PRIO_NONE: - /* - * Check if the running thread is not the owner of the - * mutex: - */ - if ((*mutex)->m_owner != curthread) { - /* - * Return an invalid argument error for no - * owner and a permission error otherwise: - */ - ret = (*mutex)->m_owner == NULL ? EINVAL : EPERM; - } - else if (((*mutex)->m_type == PTHREAD_MUTEX_RECURSIVE) && - ((*mutex)->m_data.m_count > 0)) { - /* Decrement the count: */ - (*mutex)->m_data.m_count--; - } else { - /* - * Clear the count in case this is recursive - * mutex. - */ - (*mutex)->m_data.m_count = 0; - - /* Remove the mutex from the threads queue. */ - _MUTEX_ASSERT_IS_OWNED(*mutex); - TAILQ_REMOVE(&(*mutex)->m_owner->mutexq, - (*mutex), m_qe); - _MUTEX_INIT_LINK(*mutex); - - /* - * Get the next thread from the queue of - * threads waiting on the mutex: - */ - if (((*mutex)->m_owner = - mutex_queue_deq(*mutex)) != NULL) { - /* Make the new owner runnable: */ - PTHREAD_NEW_STATE((*mutex)->m_owner, - PS_RUNNING); - - /* - * Add the mutex to the threads list of - * owned mutexes: - */ - TAILQ_INSERT_TAIL(&(*mutex)->m_owner->mutexq, - (*mutex), m_qe); - - /* - * The owner is no longer waiting for - * this mutex: - */ - (*mutex)->m_owner->data.mutex = NULL; - } - } - break; - - /* POSIX priority inheritence mutex: */ - case PTHREAD_PRIO_INHERIT: - /* - * Check if the running thread is not the owner of the - * mutex: - */ - if ((*mutex)->m_owner != curthread) { - /* - * Return an invalid argument error for no - * owner and a permission error otherwise: - */ - ret = (*mutex)->m_owner == NULL ? EINVAL : EPERM; - } - else if (((*mutex)->m_type == PTHREAD_MUTEX_RECURSIVE) && - ((*mutex)->m_data.m_count > 0)) { - /* Decrement the count: */ - (*mutex)->m_data.m_count--; - } else { - /* - * Clear the count in case this is recursive - * mutex. - */ - (*mutex)->m_data.m_count = 0; - - /* - * Restore the threads inherited priority and - * recompute the active priority (being careful - * not to override changes in the threads base - * priority subsequent to locking the mutex). - */ - curthread->inherited_priority = - (*mutex)->m_saved_prio; - curthread->active_priority = - MAX(curthread->inherited_priority, - curthread->base_priority); - - /* - * This thread now owns one less priority mutex. - */ - curthread->priority_mutex_count--; - - /* Remove the mutex from the threads queue. */ - _MUTEX_ASSERT_IS_OWNED(*mutex); - TAILQ_REMOVE(&(*mutex)->m_owner->mutexq, - (*mutex), m_qe); - _MUTEX_INIT_LINK(*mutex); - - /* - * Get the next thread from the queue of threads - * waiting on the mutex: - */ - if (((*mutex)->m_owner = - mutex_queue_deq(*mutex)) == NULL) - /* This mutex has no priority. */ - (*mutex)->m_prio = 0; - else { - /* - * Track number of priority mutexes owned: - */ - (*mutex)->m_owner->priority_mutex_count++; - - /* - * Add the mutex to the threads list - * of owned mutexes: - */ - TAILQ_INSERT_TAIL(&(*mutex)->m_owner->mutexq, - (*mutex), m_qe); - - /* - * The owner is no longer waiting for - * this mutex: - */ - (*mutex)->m_owner->data.mutex = NULL; - - /* - * Set the priority of the mutex. Since - * our waiting threads are in descending - * priority order, the priority of the - * mutex becomes the active priority of - * the thread we just dequeued. - */ - (*mutex)->m_prio = - (*mutex)->m_owner->active_priority; - - /* - * Save the owning threads inherited - * priority: - */ - (*mutex)->m_saved_prio = - (*mutex)->m_owner->inherited_priority; - - /* - * The owning threads inherited priority - * now becomes his active priority (the - * priority of the mutex). - */ - (*mutex)->m_owner->inherited_priority = - (*mutex)->m_prio; - - /* - * Make the new owner runnable: - */ - PTHREAD_NEW_STATE((*mutex)->m_owner, - PS_RUNNING); - } - } - break; - - /* POSIX priority ceiling mutex: */ - case PTHREAD_PRIO_PROTECT: - /* - * Check if the running thread is not the owner of the - * mutex: - */ - if ((*mutex)->m_owner != curthread) { - /* - * Return an invalid argument error for no - * owner and a permission error otherwise: - */ - ret = (*mutex)->m_owner == NULL ? EINVAL : EPERM; - } - else if (((*mutex)->m_type == PTHREAD_MUTEX_RECURSIVE) && - ((*mutex)->m_data.m_count > 0)) { - /* Decrement the count: */ - (*mutex)->m_data.m_count--; - } else { - /* - * Clear the count in case this is recursive - * mutex. - */ - (*mutex)->m_data.m_count = 0; - - /* - * Restore the threads inherited priority and - * recompute the active priority (being careful - * not to override changes in the threads base - * priority subsequent to locking the mutex). - */ - curthread->inherited_priority = - (*mutex)->m_saved_prio; - curthread->active_priority = - MAX(curthread->inherited_priority, - curthread->base_priority); - - /* - * This thread now owns one less priority mutex. - */ - curthread->priority_mutex_count--; - - /* Remove the mutex from the threads queue. */ - _MUTEX_ASSERT_IS_OWNED(*mutex); - TAILQ_REMOVE(&(*mutex)->m_owner->mutexq, - (*mutex), m_qe); - _MUTEX_INIT_LINK(*mutex); - - /* - * Enter a loop to find a waiting thread whose - * active priority will not cause a ceiling - * violation: - */ - while ((((*mutex)->m_owner = - mutex_queue_deq(*mutex)) != NULL) && - ((*mutex)->m_owner->active_priority > - (*mutex)->m_prio)) { - /* - * Either the mutex ceiling priority - * been lowered and/or this threads - * priority has been raised subsequent - * to this thread being queued on the - * waiting list. - */ - (*mutex)->m_owner->error = EINVAL; - PTHREAD_NEW_STATE((*mutex)->m_owner, - PS_RUNNING); - /* - * The thread is no longer waiting for - * this mutex: - */ - (*mutex)->m_owner->data.mutex = NULL; - } - - /* Check for a new owner: */ - if ((*mutex)->m_owner != NULL) { - /* - * Track number of priority mutexes owned: - */ - (*mutex)->m_owner->priority_mutex_count++; - - /* - * Add the mutex to the threads list - * of owned mutexes: - */ - TAILQ_INSERT_TAIL(&(*mutex)->m_owner->mutexq, - (*mutex), m_qe); - - /* - * The owner is no longer waiting for - * this mutex: - */ - (*mutex)->m_owner->data.mutex = NULL; - - /* - * Save the owning threads inherited - * priority: - */ - (*mutex)->m_saved_prio = - (*mutex)->m_owner->inherited_priority; - - /* - * The owning thread inherits the - * ceiling priority of the mutex and - * executes at that priority: - */ - (*mutex)->m_owner->inherited_priority = - (*mutex)->m_prio; - (*mutex)->m_owner->active_priority = - (*mutex)->m_prio; - - /* - * Make the new owner runnable: - */ - PTHREAD_NEW_STATE((*mutex)->m_owner, - PS_RUNNING); - } - } - break; - - /* Trap invalid mutex types: */ - default: - /* Return an invalid argument error: */ - ret = EINVAL; - break; - } - - if ((ret == 0) && (add_reference != 0)) { - /* Increment the reference count: */ - (*mutex)->m_refcount++; - } - - /* Unlock the mutex structure: */ - _SPINUNLOCK(&(*mutex)->lock); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - - /* Return the completion status: */ - return (ret); -} - - -/* - * This function is called when a change in base priority occurs for - * a thread that is holding or waiting for a priority protection or - * inheritence mutex. A change in a threads base priority can effect - * changes to active priorities of other threads and to the ordering - * of mutex locking by waiting threads. - * - * This must be called while thread scheduling is deferred. - */ -void -_mutex_notify_priochange(pthread_t pthread) -{ - /* Adjust the priorites of any owned priority mutexes: */ - if (pthread->priority_mutex_count > 0) { - /* - * Rescan the mutexes owned by this thread and correct - * their priorities to account for this threads change - * in priority. This has the side effect of changing - * the threads active priority. - */ - mutex_rescan_owned(pthread, /* rescan all owned */ NULL); - } - - /* - * If this thread is waiting on a priority inheritence mutex, - * check for priority adjustments. A change in priority can - * also effect a ceiling violation(*) for a thread waiting on - * a priority protection mutex; we don't perform the check here - * as it is done in pthread_mutex_unlock. - * - * (*) It should be noted that a priority change to a thread - * _after_ taking and owning a priority ceiling mutex - * does not affect ownership of that mutex; the ceiling - * priority is only checked before mutex ownership occurs. - */ - if (pthread->state == PS_MUTEX_WAIT) { - /* Lock the mutex structure: */ - _SPINLOCK(&pthread->data.mutex->lock); - - /* - * Check to make sure this thread is still in the same state - * (the spinlock above can yield the CPU to another thread): - */ - if (pthread->state == PS_MUTEX_WAIT) { - /* - * Remove and reinsert this thread into the list of - * waiting threads to preserve decreasing priority - * order. - */ - mutex_queue_remove(pthread->data.mutex, pthread); - mutex_queue_enq(pthread->data.mutex, pthread); - - if (pthread->data.mutex->m_protocol == - PTHREAD_PRIO_INHERIT) { - /* Adjust priorities: */ - mutex_priority_adjust(pthread->data.mutex); - } - } - - /* Unlock the mutex structure: */ - _SPINUNLOCK(&pthread->data.mutex->lock); - } -} - -/* - * Called when a new thread is added to the mutex waiting queue or - * when a threads priority changes that is already in the mutex - * waiting queue. - */ -static void -mutex_priority_adjust(pthread_mutex_t mutex) -{ - pthread_t pthread_next, pthread = mutex->m_owner; - int temp_prio; - pthread_mutex_t m = mutex; - - /* - * Calculate the mutex priority as the maximum of the highest - * active priority of any waiting threads and the owning threads - * active priority(*). - * - * (*) Because the owning threads current active priority may - * reflect priority inherited from this mutex (and the mutex - * priority may have changed) we must recalculate the active - * priority based on the threads saved inherited priority - * and its base priority. - */ - pthread_next = TAILQ_FIRST(&m->m_queue); /* should never be NULL */ - temp_prio = MAX(pthread_next->active_priority, - MAX(m->m_saved_prio, pthread->base_priority)); - - /* See if this mutex really needs adjusting: */ - if (temp_prio == m->m_prio) - /* No need to propagate the priority: */ - return; - - /* Set new priority of the mutex: */ - m->m_prio = temp_prio; - - while (m != NULL) { - /* - * Save the threads priority before rescanning the - * owned mutexes: - */ - temp_prio = pthread->active_priority; - - /* - * Fix the priorities for all the mutexes this thread has - * locked since taking this mutex. This also has a - * potential side-effect of changing the threads priority. - */ - mutex_rescan_owned(pthread, m); - - /* - * If the thread is currently waiting on a mutex, check - * to see if the threads new priority has affected the - * priority of the mutex. - */ - if ((temp_prio != pthread->active_priority) && - (pthread->state == PS_MUTEX_WAIT) && - (pthread->data.mutex->m_protocol == PTHREAD_PRIO_INHERIT)) { - /* Grab the mutex this thread is waiting on: */ - m = pthread->data.mutex; - - /* - * The priority for this thread has changed. Remove - * and reinsert this thread into the list of waiting - * threads to preserve decreasing priority order. - */ - mutex_queue_remove(m, pthread); - mutex_queue_enq(m, pthread); - - /* Grab the waiting thread with highest priority: */ - pthread_next = TAILQ_FIRST(&m->m_queue); - - /* - * Calculate the mutex priority as the maximum of the - * highest active priority of any waiting threads and - * the owning threads active priority. - */ - temp_prio = MAX(pthread_next->active_priority, - MAX(m->m_saved_prio, m->m_owner->base_priority)); - - if (temp_prio != m->m_prio) { - /* - * The priority needs to be propagated to the - * mutex this thread is waiting on and up to - * the owner of that mutex. - */ - m->m_prio = temp_prio; - pthread = m->m_owner; - } - else - /* We're done: */ - m = NULL; - - } - else - /* We're done: */ - m = NULL; - } -} - -static void -mutex_rescan_owned(pthread_t pthread, pthread_mutex_t mutex) -{ - int active_prio, inherited_prio; - pthread_mutex_t m; - pthread_t pthread_next; - - /* - * Start walking the mutexes the thread has taken since - * taking this mutex. - */ - if (mutex == NULL) { - /* - * A null mutex means start at the beginning of the owned - * mutex list. - */ - m = TAILQ_FIRST(&pthread->mutexq); - - /* There is no inherited priority yet. */ - inherited_prio = 0; - } - else { - /* - * The caller wants to start after a specific mutex. It - * is assumed that this mutex is a priority inheritence - * mutex and that its priority has been correctly - * calculated. - */ - m = TAILQ_NEXT(mutex, m_qe); - - /* Start inheriting priority from the specified mutex. */ - inherited_prio = mutex->m_prio; - } - active_prio = MAX(inherited_prio, pthread->base_priority); - - while (m != NULL) { - /* - * We only want to deal with priority inheritence - * mutexes. This might be optimized by only placing - * priority inheritence mutexes into the owned mutex - * list, but it may prove to be useful having all - * owned mutexes in this list. Consider a thread - * exiting while holding mutexes... - */ - if (m->m_protocol == PTHREAD_PRIO_INHERIT) { - /* - * Fix the owners saved (inherited) priority to - * reflect the priority of the previous mutex. - */ - m->m_saved_prio = inherited_prio; - - if ((pthread_next = TAILQ_FIRST(&m->m_queue)) != NULL) - /* Recalculate the priority of the mutex: */ - m->m_prio = MAX(active_prio, - pthread_next->active_priority); - else - m->m_prio = active_prio; - - /* Recalculate new inherited and active priorities: */ - inherited_prio = m->m_prio; - active_prio = MAX(m->m_prio, pthread->base_priority); - } - - /* Advance to the next mutex owned by this thread: */ - m = TAILQ_NEXT(m, m_qe); - } - - /* - * Fix the threads inherited priority and recalculate its - * active priority. - */ - pthread->inherited_priority = inherited_prio; - active_prio = MAX(inherited_prio, pthread->base_priority); - - if (active_prio != pthread->active_priority) { - /* - * If this thread is in the priority queue, it must be - * removed and reinserted for its new priority. - */ - if (pthread->flags & PTHREAD_FLAGS_IN_PRIOQ) { - /* - * Remove the thread from the priority queue - * before changing its priority: - */ - PTHREAD_PRIOQ_REMOVE(pthread); - - /* - * POSIX states that if the priority is being - * lowered, the thread must be inserted at the - * head of the queue for its priority if it owns - * any priority protection or inheritence mutexes. - */ - if ((active_prio < pthread->active_priority) && - (pthread->priority_mutex_count > 0)) { - /* Set the new active priority. */ - pthread->active_priority = active_prio; - - PTHREAD_PRIOQ_INSERT_HEAD(pthread); - } - else { - /* Set the new active priority. */ - pthread->active_priority = active_prio; - - PTHREAD_PRIOQ_INSERT_TAIL(pthread); - } - } - else { - /* Set the new active priority. */ - pthread->active_priority = active_prio; - } - } -} - -void -_mutex_unlock_private(pthread_t pthread) -{ - struct pthread_mutex *m, *m_next; - - for (m = TAILQ_FIRST(&pthread->mutexq); m != NULL; m = m_next) { - m_next = TAILQ_NEXT(m, m_qe); - if ((m->m_flags & MUTEX_FLAGS_PRIVATE) != 0) - _pthread_mutex_unlock(&m); - } -} - -void -_mutex_lock_backout(pthread_t pthread) -{ - struct pthread_mutex *mutex; - - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - if ((pthread->flags & PTHREAD_FLAGS_IN_MUTEXQ) != 0) { - mutex = pthread->data.mutex; - - /* Lock the mutex structure: */ - _SPINLOCK(&mutex->lock); - - mutex_queue_remove(mutex, pthread); - - /* This thread is no longer waiting for the mutex: */ - pthread->data.mutex = NULL; - - /* Unlock the mutex structure: */ - _SPINUNLOCK(&mutex->lock); - - } - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); -} - -/* - * Dequeue a waiting thread from the head of a mutex queue in descending - * priority order. - */ -static inline pthread_t -mutex_queue_deq(pthread_mutex_t mutex) -{ - pthread_t pthread; - - while ((pthread = TAILQ_FIRST(&mutex->m_queue)) != NULL) { - TAILQ_REMOVE(&mutex->m_queue, pthread, sqe); - pthread->flags &= ~PTHREAD_FLAGS_IN_MUTEXQ; - - /* - * Only exit the loop if the thread hasn't been - * cancelled. - */ - if (pthread->interrupted == 0) - break; - } - - return (pthread); -} - -/* - * Remove a waiting thread from a mutex queue in descending priority order. - */ -static inline void -mutex_queue_remove(pthread_mutex_t mutex, pthread_t pthread) -{ - if ((pthread->flags & PTHREAD_FLAGS_IN_MUTEXQ) != 0) { - TAILQ_REMOVE(&mutex->m_queue, pthread, sqe); - pthread->flags &= ~PTHREAD_FLAGS_IN_MUTEXQ; - } -} - -/* - * Enqueue a waiting thread to a queue in descending priority order. - */ -static inline void -mutex_queue_enq(pthread_mutex_t mutex, pthread_t pthread) -{ - pthread_t tid = TAILQ_LAST(&mutex->m_queue, mutex_head); - - PTHREAD_ASSERT_NOT_IN_SYNCQ(pthread); - /* - * For the common case of all threads having equal priority, - * we perform a quick check against the priority of the thread - * at the tail of the queue. - */ - if ((tid == NULL) || (pthread->active_priority <= tid->active_priority)) - TAILQ_INSERT_TAIL(&mutex->m_queue, pthread, sqe); - else { - tid = TAILQ_FIRST(&mutex->m_queue); - while (pthread->active_priority <= tid->active_priority) - tid = TAILQ_NEXT(tid, sqe); - TAILQ_INSERT_BEFORE(tid, pthread, sqe); - } - pthread->flags |= PTHREAD_FLAGS_IN_MUTEXQ; -} - diff --git a/lib/libc_r/uthread/uthread_mutex_prioceiling.c b/lib/libc_r/uthread/uthread_mutex_prioceiling.c deleted file mode 100644 index eccc9e4..0000000 --- a/lib/libc_r/uthread/uthread_mutex_prioceiling.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -__weak_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling); -__weak_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling); -__weak_reference(_pthread_mutex_getprioceiling, pthread_mutex_getprioceiling); -__weak_reference(_pthread_mutex_setprioceiling, pthread_mutex_setprioceiling); - -int -_pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) -{ - int ret = 0; - - if ((mattr == NULL) || (*mattr == NULL)) - ret = EINVAL; - else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) - ret = EINVAL; - else - *prioceiling = (*mattr)->m_ceiling; - - return(ret); -} - -int -_pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) -{ - int ret = 0; - - if ((mattr == NULL) || (*mattr == NULL)) - ret = EINVAL; - else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) - ret = EINVAL; - else - (*mattr)->m_ceiling = prioceiling; - - return(ret); -} - -int -_pthread_mutex_getprioceiling(pthread_mutex_t *mutex, - int *prioceiling) -{ - int ret; - - if ((mutex == NULL) || (*mutex == NULL)) - ret = EINVAL; - else if ((*mutex)->m_protocol != PTHREAD_PRIO_PROTECT) - ret = EINVAL; - else - ret = (*mutex)->m_prio; - - return(ret); -} - -int -_pthread_mutex_setprioceiling(pthread_mutex_t *mutex, - int prioceiling, int *old_ceiling) -{ - int ret = 0; - - if ((mutex == NULL) || (*mutex == NULL)) - ret = EINVAL; - else if ((*mutex)->m_protocol != PTHREAD_PRIO_PROTECT) - ret = EINVAL; - else { - /* Lock the mutex: */ - if ((ret = _pthread_mutex_lock(mutex)) == 0) { - /* Return the old ceiling and set the new ceiling: */ - *old_ceiling = (*mutex)->m_prio; - (*mutex)->m_prio = prioceiling; - - /* Unlock the mutex: */ - ret = _pthread_mutex_unlock(mutex); - } - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_mutex_protocol.c b/lib/libc_r/uthread/uthread_mutex_protocol.c deleted file mode 100644 index 4d020d6..0000000 --- a/lib/libc_r/uthread/uthread_mutex_protocol.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); -__weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); - -int -_pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol) -{ - int ret = 0; - - if ((mattr == NULL) || (*mattr == NULL)) - ret = EINVAL; - else - *protocol = (*mattr)->m_protocol; - - return(ret); -} - -int -_pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) -{ - int ret = 0; - - if ((mattr == NULL) || (*mattr == NULL) || - (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT)) - ret = EINVAL; - else { - (*mattr)->m_protocol = protocol; - (*mattr)->m_ceiling = PTHREAD_MAX_PRIORITY; - } - return(ret); -} - diff --git a/lib/libc_r/uthread/uthread_mutexattr_destroy.c b/lib/libc_r/uthread/uthread_mutexattr_destroy.c deleted file mode 100644 index 25d2293..0000000 --- a/lib/libc_r/uthread/uthread_mutexattr_destroy.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdlib.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); - -int -_pthread_mutexattr_destroy(pthread_mutexattr_t *attr) -{ - int ret; - if (attr == NULL || *attr == NULL) { - ret = EINVAL; - } else { - free(*attr); - *attr = NULL; - ret = 0; - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_nanosleep.c b/lib/libc_r/uthread/uthread_nanosleep.c deleted file mode 100644 index a8bea22..0000000 --- a/lib/libc_r/uthread/uthread_nanosleep.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdio.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__nanosleep, nanosleep); - -int -_nanosleep(const struct timespec * time_to_sleep, - struct timespec * time_remaining) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - struct timespec current_time; - struct timespec current_time1; - struct timespec remaining_time; - struct timeval tv; - - /* Check if the time to sleep is legal: */ - if (time_to_sleep == NULL || time_to_sleep->tv_sec < 0 || - time_to_sleep->tv_nsec < 0 || time_to_sleep->tv_nsec >= 1000000000) { - /* Return an EINVAL error : */ - errno = EINVAL; - ret = -1; - } else { - /* - * As long as we're going to get the time of day, we - * might as well store it in the global time of day: - */ - gettimeofday((struct timeval *) &_sched_tod, NULL); - GET_CURRENT_TOD(tv); - TIMEVAL_TO_TIMESPEC(&tv, ¤t_time); - - /* Calculate the time for the current thread to wake up: */ - curthread->wakeup_time.tv_sec = current_time.tv_sec + time_to_sleep->tv_sec; - curthread->wakeup_time.tv_nsec = current_time.tv_nsec + time_to_sleep->tv_nsec; - - /* Check if the nanosecond field has overflowed: */ - if (curthread->wakeup_time.tv_nsec >= 1000000000) { - /* Wrap the nanosecond field: */ - curthread->wakeup_time.tv_sec += 1; - curthread->wakeup_time.tv_nsec -= 1000000000; - } - curthread->interrupted = 0; - - /* Reschedule the current thread to sleep: */ - _thread_kern_sched_state(PS_SLEEP_WAIT, __FILE__, __LINE__); - - /* - * As long as we're going to get the time of day, we - * might as well store it in the global time of day: - */ - gettimeofday((struct timeval *) &_sched_tod, NULL); - GET_CURRENT_TOD(tv); - TIMEVAL_TO_TIMESPEC(&tv, ¤t_time1); - - /* Calculate the remaining time to sleep: */ - remaining_time.tv_sec = time_to_sleep->tv_sec + current_time.tv_sec - current_time1.tv_sec; - remaining_time.tv_nsec = time_to_sleep->tv_nsec + current_time.tv_nsec - current_time1.tv_nsec; - - /* Check if the nanosecond field has underflowed: */ - if (remaining_time.tv_nsec < 0) { - /* Handle the underflow: */ - remaining_time.tv_sec -= 1; - remaining_time.tv_nsec += 1000000000; - } - - /* Check if the nanosecond field has overflowed: */ - if (remaining_time.tv_nsec >= 1000000000) { - /* Handle the overflow: */ - remaining_time.tv_sec += 1; - remaining_time.tv_nsec -= 1000000000; - } - - /* Check if the sleep was longer than the required time: */ - if (remaining_time.tv_sec < 0) { - /* Reset the time left: */ - remaining_time.tv_sec = 0; - remaining_time.tv_nsec = 0; - } - - /* Check if the time remaining is to be returned: */ - if (time_remaining != NULL) { - /* Return the actual time slept: */ - time_remaining->tv_sec = remaining_time.tv_sec; - time_remaining->tv_nsec = remaining_time.tv_nsec; - } - - /* Check if the sleep was interrupted: */ - if (curthread->interrupted) { - /* Return an EINTR error : */ - errno = EINTR; - ret = -1; - } - } - return (ret); -} - -int -__nanosleep(const struct timespec * time_to_sleep, struct timespec * - time_remaining) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _nanosleep(time_to_sleep, time_remaining); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_once.c b/lib/libc_r/uthread/uthread_once.c deleted file mode 100644 index 6aa0c49..0000000 --- a/lib/libc_r/uthread/uthread_once.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -__weak_reference(_pthread_once, pthread_once); - -int -_pthread_once(pthread_once_t * once_control, void (*init_routine) (void)) -{ - if (once_control->state == PTHREAD_NEEDS_INIT) { - if (_thread_initial == NULL) - _thread_init(); - _pthread_mutex_lock(&(once_control->mutex)); - if (once_control->state == PTHREAD_NEEDS_INIT) { - init_routine(); - once_control->state = PTHREAD_DONE_INIT; - } - _pthread_mutex_unlock(&(once_control->mutex)); - } - return (0); -} diff --git a/lib/libc_r/uthread/uthread_open.c b/lib/libc_r/uthread/uthread_open.c deleted file mode 100644 index 9d7b8b2..0000000 --- a/lib/libc_r/uthread/uthread_open.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <stdarg.h> -#include <unistd.h> -#include <fcntl.h> -#include <dirent.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__open, open); - -int -_open(const char *path, int flags,...) -{ - int fd; - int mode = 0; - va_list ap; - - /* Check if the file is being created: */ - if (flags & O_CREAT) { - /* Get the creation mode: */ - va_start(ap, flags); - mode = va_arg(ap, int); - va_end(ap); - } - /* Open the file: */ - if ((fd = __sys_open(path, flags, mode)) < 0) { - } - /* Initialise the file descriptor table entry: */ - else if (_thread_fd_table_init(fd) != 0) { - /* Quietly close the file: */ - __sys_close(fd); - - /* Reset the file descriptor: */ - fd = -1; - } - - /* Return the file descriptor or -1 on error: */ - return (fd); -} - -int -__open(const char *path, int flags,...) -{ - int ret; - int mode = 0; - va_list ap; - - _thread_enter_cancellation_point(); - - /* Check if the file is being created: */ - if (flags & O_CREAT) { - /* Get the creation mode: */ - va_start(ap, flags); - mode = va_arg(ap, int); - va_end(ap); - } - - ret = _open(path, flags, mode); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_pause.c b/lib/libc_r/uthread/uthread_pause.c deleted file mode 100644 index 57b508f..0000000 --- a/lib/libc_r/uthread/uthread_pause.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pause, pause); - -int -_pause(void) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = __pause(); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_pipe.c b/lib/libc_r/uthread/uthread_pipe.c deleted file mode 100644 index 3d0090b..0000000 --- a/lib/libc_r/uthread/uthread_pipe.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <unistd.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pipe, pipe); - -int -_pipe(int fds[2]) -{ - int ret; - if ((ret = __sys_pipe(fds)) >= 0) { - if (_thread_fd_table_init(fds[0]) != 0 || - _thread_fd_table_init(fds[1]) != 0) { - __sys_close(fds[0]); - __sys_close(fds[1]); - ret = -1; - } - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_poll.c b/lib/libc_r/uthread/uthread_poll.c deleted file mode 100644 index 62b2613..0000000 --- a/lib/libc_r/uthread/uthread_poll.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (c) 1999 Daniel Eischen <eischen@vigrid.com> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <unistd.h> -#include <errno.h> -#include <string.h> -#include <poll.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__poll, poll); - -int -_poll(struct pollfd *fds, unsigned int nfds, int timeout) -{ - struct pthread *curthread = _get_curthread(); - struct timespec ts; - int numfds = nfds; - int i, ret = 0; - struct pthread_poll_data data; - - if (numfds > _thread_dtablesize) { - numfds = _thread_dtablesize; - } - /* Check if a timeout was specified: */ - if (timeout == INFTIM) { - /* Wait for ever: */ - _thread_kern_set_timeout(NULL); - } else if (timeout > 0) { - /* Convert the timeout in msec to a timespec: */ - ts.tv_sec = timeout / 1000; - ts.tv_nsec = (timeout % 1000) * 1000000; - - /* Set the wake up time: */ - _thread_kern_set_timeout(&ts); - } else if (timeout < 0) { - /* a timeout less than zero but not == INFTIM is invalid */ - errno = EINVAL; - return (-1); - } - - if (((ret = __sys_poll(fds, numfds, 0)) == 0) && (timeout != 0)) { - data.nfds = numfds; - data.fds = fds; - - /* - * Clear revents in case of a timeout which leaves fds - * unchanged: - */ - for (i = 0; i < numfds; i++) { - fds[i].revents = 0; - } - - curthread->data.poll_data = &data; - curthread->interrupted = 0; - _thread_kern_sched_state(PS_POLL_WAIT, __FILE__, __LINE__); - if (curthread->interrupted) { - errno = EINTR; - ret = -1; - } else { - ret = data.nfds; - } - } - - return (ret); -} - -int -__poll(struct pollfd *fds, unsigned int nfds, int timeout) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _poll(fds, nfds, timeout); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_priority_queue.c b/lib/libc_r/uthread/uthread_priority_queue.c deleted file mode 100644 index b700d97..0000000 --- a/lib/libc_r/uthread/uthread_priority_queue.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <stdlib.h> -#include <sys/queue.h> -#include <string.h> -#include <pthread.h> -#include "pthread_private.h" - -/* Prototypes: */ -static void pq_insert_prio_list(pq_queue_t *pq, int prio); - -#if defined(_PTHREADS_INVARIANTS) - -static int _pq_active = 0; - -#define _PQ_IN_SCHEDQ (PTHREAD_FLAGS_IN_PRIOQ | PTHREAD_FLAGS_IN_WAITQ | PTHREAD_FLAGS_IN_WORKQ) - -#define _PQ_SET_ACTIVE() _pq_active = 1 -#define _PQ_CLEAR_ACTIVE() _pq_active = 0 -#define _PQ_ASSERT_ACTIVE(msg) do { \ - if (_pq_active == 0) \ - PANIC(msg); \ -} while (0) -#define _PQ_ASSERT_INACTIVE(msg) do { \ - if (_pq_active != 0) \ - PANIC(msg); \ -} while (0) -#define _PQ_ASSERT_IN_WAITQ(thrd, msg) do { \ - if (((thrd)->flags & PTHREAD_FLAGS_IN_WAITQ) == 0) \ - PANIC(msg); \ -} while (0) -#define _PQ_ASSERT_IN_PRIOQ(thrd, msg) do { \ - if (((thrd)->flags & PTHREAD_FLAGS_IN_PRIOQ) == 0) \ - PANIC(msg); \ -} while (0) -#define _PQ_ASSERT_NOT_QUEUED(thrd, msg) do { \ - if (((thrd)->flags & _PQ_IN_SCHEDQ) != 0) \ - PANIC(msg); \ -} while (0) -#define _PQ_ASSERT_PROTECTED(msg) \ - PTHREAD_ASSERT((_thread_kern_in_sched != 0) || \ - ((_get_curthread())->sig_defer_count > 0) ||\ - (_sig_in_handler != 0), msg); - -#else - -#define _PQ_SET_ACTIVE() -#define _PQ_CLEAR_ACTIVE() -#define _PQ_ASSERT_ACTIVE(msg) -#define _PQ_ASSERT_INACTIVE(msg) -#define _PQ_ASSERT_IN_WAITQ(thrd, msg) -#define _PQ_ASSERT_IN_PRIOQ(thrd, msg) -#define _PQ_ASSERT_NOT_QUEUED(thrd, msg) -#define _PQ_ASSERT_PROTECTED(msg) - -#endif - -int -_pq_alloc(pq_queue_t *pq, int minprio, int maxprio) -{ - int ret = 0; - int prioslots = maxprio - minprio + 1; - - if (pq == NULL) - ret = -1; - - /* Create the priority queue with (maxprio - minprio + 1) slots: */ - else if ((pq->pq_lists = - (pq_list_t *) malloc(sizeof(pq_list_t) * prioslots)) == NULL) - ret = -1; - - else { - /* Remember the queue size: */ - pq->pq_size = prioslots; - ret = _pq_init(pq); - } - return (ret); -} - -int -_pq_init(pq_queue_t *pq) -{ - int i, ret = 0; - - if ((pq == NULL) || (pq->pq_lists == NULL)) - ret = -1; - - else { - /* Initialize the queue for each priority slot: */ - for (i = 0; i < pq->pq_size; i++) { - TAILQ_INIT(&pq->pq_lists[i].pl_head); - pq->pq_lists[i].pl_prio = i; - pq->pq_lists[i].pl_queued = 0; - } - - /* Initialize the priority queue: */ - TAILQ_INIT(&pq->pq_queue); - _PQ_CLEAR_ACTIVE(); - } - return (ret); -} - -void -_pq_remove(pq_queue_t *pq, pthread_t pthread) -{ - int prio = pthread->active_priority; - - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_INACTIVE("_pq_remove: pq_active"); - _PQ_SET_ACTIVE(); - _PQ_ASSERT_IN_PRIOQ(pthread, "_pq_remove: Not in priority queue"); - _PQ_ASSERT_PROTECTED("_pq_remove: prioq not protected!"); - - /* - * Remove this thread from priority list. Note that if - * the priority list becomes empty, it is not removed - * from the priority queue because another thread may be - * added to the priority list (resulting in a needless - * removal/insertion). Priority lists are only removed - * from the priority queue when _pq_first is called. - */ - TAILQ_REMOVE(&pq->pq_lists[prio].pl_head, pthread, pqe); - - /* This thread is now longer in the priority queue. */ - pthread->flags &= ~PTHREAD_FLAGS_IN_PRIOQ; - - _PQ_CLEAR_ACTIVE(); -} - - -void -_pq_insert_head(pq_queue_t *pq, pthread_t pthread) -{ - int prio; - - /* - * Don't insert suspended threads into the priority queue. - * The caller is responsible for setting the threads state. - */ - if ((pthread->flags & PTHREAD_FLAGS_SUSPENDED) != 0) { - /* Make sure the threads state is suspended. */ - if (pthread->state != PS_SUSPENDED) - PTHREAD_SET_STATE(pthread, PS_SUSPENDED); - } else { - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_INACTIVE("_pq_insert_head: pq_active"); - _PQ_SET_ACTIVE(); - _PQ_ASSERT_NOT_QUEUED(pthread, - "_pq_insert_head: Already in priority queue"); - _PQ_ASSERT_PROTECTED("_pq_insert_head: prioq not protected!"); - - prio = pthread->active_priority; - TAILQ_INSERT_HEAD(&pq->pq_lists[prio].pl_head, pthread, pqe); - if (pq->pq_lists[prio].pl_queued == 0) - /* Insert the list into the priority queue: */ - pq_insert_prio_list(pq, prio); - - /* Mark this thread as being in the priority queue. */ - pthread->flags |= PTHREAD_FLAGS_IN_PRIOQ; - - _PQ_CLEAR_ACTIVE(); - } -} - - -void -_pq_insert_tail(pq_queue_t *pq, pthread_t pthread) -{ - int prio; - - /* - * Don't insert suspended threads into the priority queue. - * The caller is responsible for setting the threads state. - */ - if ((pthread->flags & PTHREAD_FLAGS_SUSPENDED) != 0) { - /* Make sure the threads state is suspended. */ - if (pthread->state != PS_SUSPENDED) - PTHREAD_SET_STATE(pthread, PS_SUSPENDED); - } else { - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_INACTIVE("_pq_insert_tail: pq_active"); - _PQ_SET_ACTIVE(); - _PQ_ASSERT_NOT_QUEUED(pthread, - "_pq_insert_tail: Already in priority queue"); - _PQ_ASSERT_PROTECTED("_pq_insert_tail: prioq not protected!"); - - prio = pthread->active_priority; - TAILQ_INSERT_TAIL(&pq->pq_lists[prio].pl_head, pthread, pqe); - if (pq->pq_lists[prio].pl_queued == 0) - /* Insert the list into the priority queue: */ - pq_insert_prio_list(pq, prio); - - /* Mark this thread as being in the priority queue. */ - pthread->flags |= PTHREAD_FLAGS_IN_PRIOQ; - - _PQ_CLEAR_ACTIVE(); - } -} - - -pthread_t -_pq_first(pq_queue_t *pq) -{ - pq_list_t *pql; - pthread_t pthread = NULL; - - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_INACTIVE("_pq_first: pq_active"); - _PQ_SET_ACTIVE(); - _PQ_ASSERT_PROTECTED("_pq_first: prioq not protected!"); - - while (((pql = TAILQ_FIRST(&pq->pq_queue)) != NULL) && - (pthread == NULL)) { - if ((pthread = TAILQ_FIRST(&pql->pl_head)) == NULL) { - /* - * The priority list is empty; remove the list - * from the queue. - */ - TAILQ_REMOVE(&pq->pq_queue, pql, pl_link); - - /* Mark the list as not being in the queue: */ - pql->pl_queued = 0; - } else if ((pthread->flags & PTHREAD_FLAGS_SUSPENDED) != 0) { - /* - * This thread is suspended; remove it from the - * list and ensure its state is suspended. - */ - TAILQ_REMOVE(&pql->pl_head, pthread, pqe); - PTHREAD_SET_STATE(pthread, PS_SUSPENDED); - - /* This thread is now longer in the priority queue. */ - pthread->flags &= ~PTHREAD_FLAGS_IN_PRIOQ; - pthread = NULL; - } - } - - _PQ_CLEAR_ACTIVE(); - return (pthread); -} - - -static void -pq_insert_prio_list(pq_queue_t *pq, int prio) -{ - pq_list_t *pql; - - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_ACTIVE("pq_insert_prio_list: pq_active"); - _PQ_ASSERT_PROTECTED("_pq_insert_prio_list: prioq not protected!"); - - /* - * The priority queue is in descending priority order. Start at - * the beginning of the queue and find the list before which the - * new list should be inserted. - */ - pql = TAILQ_FIRST(&pq->pq_queue); - while ((pql != NULL) && (pql->pl_prio > prio)) - pql = TAILQ_NEXT(pql, pl_link); - - /* Insert the list: */ - if (pql == NULL) - TAILQ_INSERT_TAIL(&pq->pq_queue, &pq->pq_lists[prio], pl_link); - else - TAILQ_INSERT_BEFORE(pql, &pq->pq_lists[prio], pl_link); - - /* Mark this list as being in the queue: */ - pq->pq_lists[prio].pl_queued = 1; -} - -void -_waitq_insert(pthread_t pthread) -{ - pthread_t tid; - - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_INACTIVE("_waitq_insert: pq_active"); - _PQ_SET_ACTIVE(); - _PQ_ASSERT_NOT_QUEUED(pthread, "_waitq_insert: Already in queue"); - - if (pthread->wakeup_time.tv_sec == -1) - TAILQ_INSERT_TAIL(&_waitingq, pthread, pqe); - else { - tid = TAILQ_FIRST(&_waitingq); - while ((tid != NULL) && (tid->wakeup_time.tv_sec != -1) && - ((tid->wakeup_time.tv_sec < pthread->wakeup_time.tv_sec) || - ((tid->wakeup_time.tv_sec == pthread->wakeup_time.tv_sec) && - (tid->wakeup_time.tv_nsec <= pthread->wakeup_time.tv_nsec)))) - tid = TAILQ_NEXT(tid, pqe); - if (tid == NULL) - TAILQ_INSERT_TAIL(&_waitingq, pthread, pqe); - else - TAILQ_INSERT_BEFORE(tid, pthread, pqe); - } - pthread->flags |= PTHREAD_FLAGS_IN_WAITQ; - - _PQ_CLEAR_ACTIVE(); -} - -void -_waitq_remove(pthread_t pthread) -{ - /* - * Make some assertions when debugging is enabled: - */ - _PQ_ASSERT_INACTIVE("_waitq_remove: pq_active"); - _PQ_SET_ACTIVE(); - _PQ_ASSERT_IN_WAITQ(pthread, "_waitq_remove: Not in queue"); - - TAILQ_REMOVE(&_waitingq, pthread, pqe); - pthread->flags &= ~PTHREAD_FLAGS_IN_WAITQ; - - _PQ_CLEAR_ACTIVE(); -} - -void -_waitq_setactive(void) -{ - _PQ_ASSERT_INACTIVE("_waitq_setactive: pq_active"); - _PQ_SET_ACTIVE(); -} - -void -_waitq_clearactive(void) -{ - _PQ_ASSERT_ACTIVE("_waitq_clearactive: ! pq_active"); - _PQ_CLEAR_ACTIVE(); -} diff --git a/lib/libc_r/uthread/uthread_pselect.c b/lib/libc_r/uthread/uthread_pselect.c deleted file mode 100644 index 9848863..0000000 --- a/lib/libc_r/uthread/uthread_pselect.c +++ /dev/null @@ -1,56 +0,0 @@ -/*- - * Copyright (c) 2002 Daniel M. Eischen <deischen@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/select.h> -#include <sys/time.h> - -#include <errno.h> -#include <signal.h> -#include <pthread.h> - -#include "pthread_private.h" - -extern int __pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, - const struct timespec *timo, const sigset_t *mask); - -__weak_reference(_pselect, pselect); - -int -_pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, - const struct timespec *timo, const sigset_t *mask) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = __pselect(count, rfds, wfds, efds, timo, mask); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_read.c b/lib/libc_r/uthread/uthread_read.c deleted file mode 100644 index 655abdf..0000000 --- a/lib/libc_r/uthread/uthread_read.c +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <sys/types.h> -#include <sys/fcntl.h> -#include <sys/uio.h> -#include <errno.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__read, read); - -ssize_t -_read(int fd, void *buf, size_t nbytes) -{ - struct pthread *curthread = _get_curthread(); - int ret; - int type; - - /* POSIX says to do just this: */ - if (nbytes == 0) { - return (0); - } - - /* Lock the file descriptor for read: */ - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - /* Get the read/write mode type: */ - type = _thread_fd_getflags(fd) & O_ACCMODE; - - /* Check if the file is not open for read: */ - if (type != O_RDONLY && type != O_RDWR) { - /* File is not open for read: */ - errno = EBADF; - _FD_UNLOCK(fd, FD_READ); - return (-1); - } - - /* Perform a non-blocking read syscall: */ - while ((ret = __sys_read(fd, buf, nbytes)) < 0) { - if ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0 && - (errno == EWOULDBLOCK || errno == EAGAIN)) { - curthread->data.fd.fd = fd; - _thread_kern_set_timeout(NULL); - - /* Reset the interrupted operation flag: */ - curthread->interrupted = 0; - - _thread_kern_sched_state(PS_FDR_WAIT, - __FILE__, __LINE__); - - /* - * Check if the operation was - * interrupted by a signal - */ - if (curthread->interrupted) { - errno = EINTR; - ret = -1; - break; - } - } else { - break; - } - } - _FD_UNLOCK(fd, FD_READ); - } - return (ret); -} - -ssize_t -__read(int fd, void *buf, size_t nbytes) -{ - ssize_t ret; - - _thread_enter_cancellation_point(); - ret = _read(fd, buf, nbytes); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_readv.c b/lib/libc_r/uthread/uthread_readv.c deleted file mode 100644 index 11e3433..0000000 --- a/lib/libc_r/uthread/uthread_readv.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <sys/types.h> -#include <sys/fcntl.h> -#include <sys/uio.h> -#include <errno.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__readv, readv); - -ssize_t -_readv(int fd, const struct iovec * iov, int iovcnt) -{ - struct pthread *curthread = _get_curthread(); - int ret; - int type; - - /* Lock the file descriptor for read: */ - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - /* Get the read/write mode type: */ - type = _thread_fd_getflags(fd) & O_ACCMODE; - - /* Check if the file is not open for read: */ - if (type != O_RDONLY && type != O_RDWR) { - /* File is not open for read: */ - errno = EBADF; - _FD_UNLOCK(fd, FD_READ); - return (-1); - } - - /* Perform a non-blocking readv syscall: */ - while ((ret = __sys_readv(fd, iov, iovcnt)) < 0) { - if ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0 && - (errno == EWOULDBLOCK || errno == EAGAIN)) { - curthread->data.fd.fd = fd; - _thread_kern_set_timeout(NULL); - - /* Reset the interrupted operation flag: */ - curthread->interrupted = 0; - - _thread_kern_sched_state(PS_FDR_WAIT, - __FILE__, __LINE__); - - /* - * Check if the operation was - * interrupted by a signal - */ - if (curthread->interrupted) { - errno = EINTR; - ret = -1; - break; - } - } else { - break; - } - } - _FD_UNLOCK(fd, FD_READ); - } - return (ret); -} - -ssize_t -__readv(int fd, const struct iovec *iov, int iovcnt) -{ - ssize_t ret; - - _thread_enter_cancellation_point(); - ret = _readv(fd, iov, iovcnt); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_recvfrom.c b/lib/libc_r/uthread/uthread_recvfrom.c deleted file mode 100644 index 50a0a42..0000000 --- a/lib/libc_r/uthread/uthread_recvfrom.c +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__recvfrom, recvfrom); - -ssize_t -_recvfrom(int fd, void *buf, size_t len, int flags, struct sockaddr * from, - socklen_t *from_len) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - while ((ret = __sys_recvfrom(fd, buf, len, flags, from, from_len)) < 0) { - if (((_thread_fd_getflags(fd) & O_NONBLOCK) == 0) - && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) { - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(NULL); - curthread->interrupted = 0; - _thread_kern_sched_state(PS_FDR_WAIT, __FILE__, __LINE__); - - /* Check if the wait was interrupted: */ - if (curthread->interrupted) { - /* Return an error status: */ - errno = EINTR; - ret = -1; - break; - } - } else { - ret = -1; - break; - } - } - _FD_UNLOCK(fd, FD_READ); - } - return (ret); -} - -ssize_t -__recvfrom(int fd, void *buf, size_t len, int flags, struct sockaddr * from, - socklen_t *from_len) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _recvfrom(fd, buf, len, flags, from, from_len); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_recvmsg.c b/lib/libc_r/uthread/uthread_recvmsg.c deleted file mode 100644 index ed83f1a..0000000 --- a/lib/libc_r/uthread/uthread_recvmsg.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__recvmsg, recvmsg); - -ssize_t -_recvmsg(int fd, struct msghdr *msg, int flags) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - while ((ret = __sys_recvmsg(fd, msg, flags)) < 0) { - if (((_thread_fd_getflags(fd) & O_NONBLOCK) == 0) - && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) { - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(NULL); - curthread->interrupted = 0; - _thread_kern_sched_state(PS_FDR_WAIT, __FILE__, __LINE__); - - /* Check if the wait was interrupted: */ - if (curthread->interrupted) { - /* Return an error status: */ - errno = EINTR; - ret = -1; - break; - } - } else { - ret = -1; - break; - } - } - _FD_UNLOCK(fd, FD_READ); - } - return (ret); -} - -ssize_t -__recvmsg(int fd, struct msghdr *msg, int flags) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _recvmsg(fd, msg, flags); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_resume_np.c b/lib/libc_r/uthread/uthread_resume_np.c deleted file mode 100644 index 2ca1bc4..0000000 --- a/lib/libc_r/uthread/uthread_resume_np.c +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -static void resume_common(struct pthread *); - -__weak_reference(_pthread_resume_np, pthread_resume_np); -__weak_reference(_pthread_resume_all_np, pthread_resume_all_np); - -/* Resume a thread: */ -int -_pthread_resume_np(pthread_t thread) -{ - int ret; - - /* Find the thread in the list of active threads: */ - if ((ret = _find_thread(thread)) == 0) { - /* - * Defer signals to protect the scheduling queues - * from access by the signal handler: - */ - _thread_kern_sig_defer(); - - if ((thread->flags & PTHREAD_FLAGS_SUSPENDED) != 0) - resume_common(thread); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - return (ret); -} - -void -_pthread_resume_all_np(void) -{ - struct pthread *curthread = _get_curthread(); - struct pthread *thread; - - /* - * Defer signals to protect the scheduling queues from access - * by the signal handler: - */ - _thread_kern_sig_defer(); - - TAILQ_FOREACH(thread, &_thread_list, tle) { - if ((thread != curthread) && - ((thread->flags & PTHREAD_FLAGS_SUSPENDED) != 0)) - resume_common(thread); - } - - /* - * Undefer and handle pending signals, yielding if necessary: - */ - _thread_kern_sig_undefer(); -} - -static void -resume_common(struct pthread *thread) -{ - /* Clear the suspend flag: */ - thread->flags &= ~PTHREAD_FLAGS_SUSPENDED; - - /* - * If the thread's state is suspended, that means it is - * now runnable but not in any scheduling queue. Set the - * state to running and insert it into the run queue. - */ - if (thread->state == PS_SUSPENDED) { - PTHREAD_SET_STATE(thread, PS_RUNNING); - if (thread->priority_mutex_count > 0) - PTHREAD_PRIOQ_INSERT_HEAD(thread); - else - PTHREAD_PRIOQ_INSERT_TAIL(thread); - } -} diff --git a/lib/libc_r/uthread/uthread_rwlock.c b/lib/libc_r/uthread/uthread_rwlock.c deleted file mode 100644 index fdda04c..0000000 --- a/lib/libc_r/uthread/uthread_rwlock.c +++ /dev/null @@ -1,379 +0,0 @@ -/*- - * Copyright (c) 1998 Alex Nash - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <errno.h> -#include <limits.h> -#include <stdlib.h> - -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" - -#include "pthread_private.h" - -/* maximum number of times a read lock may be obtained */ -#define MAX_READ_LOCKS (INT_MAX - 1) - -__weak_reference(_pthread_rwlock_destroy, pthread_rwlock_destroy); -__weak_reference(_pthread_rwlock_init, pthread_rwlock_init); -__weak_reference(_pthread_rwlock_rdlock, pthread_rwlock_rdlock); -__weak_reference(_pthread_rwlock_tryrdlock, pthread_rwlock_tryrdlock); -__weak_reference(_pthread_rwlock_trywrlock, pthread_rwlock_trywrlock); -__weak_reference(_pthread_rwlock_unlock, pthread_rwlock_unlock); -__weak_reference(_pthread_rwlock_wrlock, pthread_rwlock_wrlock); - -static int init_static (pthread_rwlock_t *rwlock); - -static spinlock_t static_init_lock = _SPINLOCK_INITIALIZER; - -static int -init_static (pthread_rwlock_t *rwlock) -{ - int ret; - - _SPINLOCK(&static_init_lock); - - if (*rwlock == NULL) - ret = _pthread_rwlock_init(rwlock, NULL); - else - ret = 0; - - _SPINUNLOCK(&static_init_lock); - - return (ret); -} - -int -_pthread_rwlock_destroy (pthread_rwlock_t *rwlock) -{ - int ret; - - if (rwlock == NULL) - ret = EINVAL; - else { - pthread_rwlock_t prwlock; - - prwlock = *rwlock; - - _pthread_mutex_destroy(&prwlock->lock); - _pthread_cond_destroy(&prwlock->read_signal); - _pthread_cond_destroy(&prwlock->write_signal); - free(prwlock); - - *rwlock = NULL; - - ret = 0; - } - return (ret); -} - -int -_pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr) -{ - pthread_rwlock_t prwlock; - int ret; - - /* allocate rwlock object */ - prwlock = (pthread_rwlock_t)malloc(sizeof(struct pthread_rwlock)); - - if (prwlock == NULL) - return(ENOMEM); - - /* initialize the lock */ - if ((ret = _pthread_mutex_init(&prwlock->lock, NULL)) != 0) - free(prwlock); - else { - /* initialize the read condition signal */ - ret = _pthread_cond_init(&prwlock->read_signal, NULL); - - if (ret != 0) { - _pthread_mutex_destroy(&prwlock->lock); - free(prwlock); - } else { - /* initialize the write condition signal */ - ret = _pthread_cond_init(&prwlock->write_signal, NULL); - - if (ret != 0) { - _pthread_cond_destroy(&prwlock->read_signal); - _pthread_mutex_destroy(&prwlock->lock); - free(prwlock); - } else { - /* success */ - prwlock->state = 0; - prwlock->blocked_writers = 0; - - *rwlock = prwlock; - } - } - } - - return (ret); -} - -int -_pthread_rwlock_rdlock (pthread_rwlock_t *rwlock) -{ - pthread_rwlock_t prwlock; - struct pthread *curthread; - int ret; - - if (rwlock == NULL) - return(EINVAL); - - prwlock = *rwlock; - - /* check for static initialization */ - if (prwlock == NULL) { - if ((ret = init_static(rwlock)) != 0) - return(ret); - - prwlock = *rwlock; - } - - /* grab the monitor lock */ - if ((ret = _pthread_mutex_lock(&prwlock->lock)) != 0) - return(ret); - - /* check lock count */ - if (prwlock->state == MAX_READ_LOCKS) { - _pthread_mutex_unlock(&prwlock->lock); - return (EAGAIN); - } - - curthread = _get_curthread(); - if ((curthread->rdlock_count > 0) && (prwlock->state > 0)) { - /* - * To avoid having to track all the rdlocks held by - * a thread or all of the threads that hold a rdlock, - * we keep a simple count of all the rdlocks held by - * a thread. If a thread holds any rdlocks it is - * possible that it is attempting to take a recursive - * rdlock. If there are blocked writers and precedence - * is given to them, then that would result in the thread - * deadlocking. So allowing a thread to take the rdlock - * when it already has one or more rdlocks avoids the - * deadlock. I hope the reader can follow that logic ;-) - */ - ; /* nothing needed */ - } else { - /* give writers priority over readers */ - while (prwlock->blocked_writers || prwlock->state < 0) { - ret = _pthread_cond_wait(&prwlock->read_signal, - &prwlock->lock); - - if (ret != 0) { - /* can't do a whole lot if this fails */ - _pthread_mutex_unlock(&prwlock->lock); - return(ret); - } - } - } - - curthread->rdlock_count++; - prwlock->state++; /* indicate we are locked for reading */ - - /* - * Something is really wrong if this call fails. Returning - * error won't do because we've already obtained the read - * lock. Decrementing 'state' is no good because we probably - * don't have the monitor lock. - */ - _pthread_mutex_unlock(&prwlock->lock); - - return (ret); -} - -int -_pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock) -{ - pthread_rwlock_t prwlock; - struct pthread *curthread; - int ret; - - if (rwlock == NULL) - return(EINVAL); - - prwlock = *rwlock; - - /* check for static initialization */ - if (prwlock == NULL) { - if ((ret = init_static(rwlock)) != 0) - return(ret); - - prwlock = *rwlock; - } - - /* grab the monitor lock */ - if ((ret = _pthread_mutex_lock(&prwlock->lock)) != 0) - return(ret); - - curthread = _get_curthread(); - if (prwlock->state == MAX_READ_LOCKS) - ret = EAGAIN; /* too many read locks acquired */ - else if ((curthread->rdlock_count > 0) && (prwlock->state > 0)) { - /* see comment for pthread_rwlock_rdlock() */ - curthread->rdlock_count++; - prwlock->state++; - } - /* give writers priority over readers */ - else if (prwlock->blocked_writers || prwlock->state < 0) - ret = EBUSY; - else { - prwlock->state++; /* indicate we are locked for reading */ - curthread->rdlock_count++; - } - - /* see the comment on this in pthread_rwlock_rdlock */ - _pthread_mutex_unlock(&prwlock->lock); - - return (ret); -} - -int -_pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock) -{ - pthread_rwlock_t prwlock; - int ret; - - if (rwlock == NULL) - return(EINVAL); - - prwlock = *rwlock; - - /* check for static initialization */ - if (prwlock == NULL) { - if ((ret = init_static(rwlock)) != 0) - return(ret); - - prwlock = *rwlock; - } - - /* grab the monitor lock */ - if ((ret = _pthread_mutex_lock(&prwlock->lock)) != 0) - return(ret); - - if (prwlock->state != 0) - ret = EBUSY; - else - /* indicate we are locked for writing */ - prwlock->state = -1; - - /* see the comment on this in pthread_rwlock_rdlock */ - _pthread_mutex_unlock(&prwlock->lock); - - return (ret); -} - -int -_pthread_rwlock_unlock (pthread_rwlock_t *rwlock) -{ - pthread_rwlock_t prwlock; - struct pthread *curthread; - int ret; - - if (rwlock == NULL) - return(EINVAL); - - prwlock = *rwlock; - - if (prwlock == NULL) - return(EINVAL); - - /* grab the monitor lock */ - if ((ret = _pthread_mutex_lock(&prwlock->lock)) != 0) - return(ret); - - curthread = _get_curthread(); - if (prwlock->state > 0) { - curthread->rdlock_count--; - prwlock->state--; - if (prwlock->state == 0 && prwlock->blocked_writers) - ret = _pthread_cond_signal(&prwlock->write_signal); - } else if (prwlock->state < 0) { - prwlock->state = 0; - - if (prwlock->blocked_writers) - ret = _pthread_cond_signal(&prwlock->write_signal); - else - ret = _pthread_cond_broadcast(&prwlock->read_signal); - } else - ret = EINVAL; - - /* see the comment on this in pthread_rwlock_rdlock */ - _pthread_mutex_unlock(&prwlock->lock); - - return (ret); -} - -int -_pthread_rwlock_wrlock (pthread_rwlock_t *rwlock) -{ - pthread_rwlock_t prwlock; - int ret; - - if (rwlock == NULL) - return(EINVAL); - - prwlock = *rwlock; - - /* check for static initialization */ - if (prwlock == NULL) { - if ((ret = init_static(rwlock)) != 0) - return(ret); - - prwlock = *rwlock; - } - - /* grab the monitor lock */ - if ((ret = _pthread_mutex_lock(&prwlock->lock)) != 0) - return(ret); - - while (prwlock->state != 0) { - prwlock->blocked_writers++; - - ret = _pthread_cond_wait(&prwlock->write_signal, - &prwlock->lock); - - if (ret != 0) { - prwlock->blocked_writers--; - _pthread_mutex_unlock(&prwlock->lock); - return(ret); - } - - prwlock->blocked_writers--; - } - - /* indicate we are locked for writing */ - prwlock->state = -1; - - /* see the comment on this in pthread_rwlock_rdlock */ - _pthread_mutex_unlock(&prwlock->lock); - - return (ret); -} - diff --git a/lib/libc_r/uthread/uthread_rwlockattr.c b/lib/libc_r/uthread/uthread_rwlockattr.c deleted file mode 100644 index bc1b9ee..0000000 --- a/lib/libc_r/uthread/uthread_rwlockattr.c +++ /dev/null @@ -1,98 +0,0 @@ -/*- - * Copyright (c) 1998 Alex Nash - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <errno.h> -#include <stdlib.h> - -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_rwlockattr_destroy, pthread_rwlockattr_destroy); -__weak_reference(_pthread_rwlockattr_getpshared, pthread_rwlockattr_getpshared); -__weak_reference(_pthread_rwlockattr_init, pthread_rwlockattr_init); -__weak_reference(_pthread_rwlockattr_setpshared, pthread_rwlockattr_setpshared); - -int -_pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr) -{ - pthread_rwlockattr_t prwlockattr; - - if (rwlockattr == NULL) - return(EINVAL); - - prwlockattr = *rwlockattr; - - if (prwlockattr == NULL) - return(EINVAL); - - free(prwlockattr); - - return(0); -} - -int -_pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *rwlockattr, - int *pshared) -{ - *pshared = (*rwlockattr)->pshared; - - return(0); -} - -int -_pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr) -{ - pthread_rwlockattr_t prwlockattr; - - if (rwlockattr == NULL) - return(EINVAL); - - prwlockattr = (pthread_rwlockattr_t) - malloc(sizeof(struct pthread_rwlockattr)); - - if (prwlockattr == NULL) - return(ENOMEM); - - prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE; - *rwlockattr = prwlockattr; - - return(0); -} - -int -_pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared) -{ - /* Only PTHREAD_PROCESS_PRIVATE is supported. */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return(EINVAL); - - (*rwlockattr)->pshared = pshared; - - return(0); -} - diff --git a/lib/libc_r/uthread/uthread_select.c b/lib/libc_r/uthread/uthread_select.c deleted file mode 100644 index 69293e3..0000000 --- a/lib/libc_r/uthread/uthread_select.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <unistd.h> -#include <errno.h> -#include <poll.h> -#include <stdlib.h> -#include <string.h> -#include <sys/param.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__select, select); - -int -_select(int numfds, fd_set * readfds, fd_set * writefds, fd_set * exceptfds, - struct timeval * timeout) -{ - struct pthread *curthread = _get_curthread(); - struct timespec ts; - int i, ret = 0, f_wait = 1; - int pfd_index, got_events = 0, fd_count = 0; - struct pthread_poll_data data; - - if (numfds > _thread_dtablesize) { - numfds = _thread_dtablesize; - } - /* Count the number of file descriptors to be polled: */ - if (readfds || writefds || exceptfds) { - for (i = 0; i < numfds; i++) { - if ((readfds && FD_ISSET(i, readfds)) || - (exceptfds && FD_ISSET(i, exceptfds)) || - (writefds && FD_ISSET(i, writefds))) { - fd_count++; - } - } - } - - /* - * Allocate memory for poll data if it hasn't already been - * allocated or if previously allocated memory is insufficient. - */ - if ((curthread->poll_data.fds == NULL) || - (curthread->poll_data.nfds < fd_count)) { - data.fds = (struct pollfd *) realloc(curthread->poll_data.fds, - sizeof(struct pollfd) * MAX(128, fd_count)); - if (data.fds == NULL) { - errno = ENOMEM; - ret = -1; - } - else { - /* - * Note that the threads poll data always - * indicates what is allocated, not what is - * currently being polled. - */ - curthread->poll_data.fds = data.fds; - curthread->poll_data.nfds = MAX(128, fd_count); - } - } - /* Check if a timeout was specified: */ - if (timeout) { - if (timeout->tv_sec < 0 || - timeout->tv_usec < 0 || timeout->tv_usec >= 1000000) { - errno = EINVAL; - return (-1); - } - - /* Convert the timeval to a timespec: */ - TIMEVAL_TO_TIMESPEC(timeout, &ts); - - /* Set the wake up time: */ - _thread_kern_set_timeout(&ts); - if (ts.tv_sec == 0 && ts.tv_nsec == 0) - f_wait = 0; - } else { - /* Wait for ever: */ - _thread_kern_set_timeout(NULL); - } - - if (ret == 0) { - /* Setup the wait data. */ - data.fds = curthread->poll_data.fds; - data.nfds = fd_count; - - /* - * Setup the array of pollfds. Optimize this by - * running the loop in reverse and stopping when - * the number of selected file descriptors is reached. - */ - for (i = numfds - 1, pfd_index = fd_count - 1; - (i >= 0) && (pfd_index >= 0); i--) { - data.fds[pfd_index].events = 0; - if (readfds && FD_ISSET(i, readfds)) { - data.fds[pfd_index].events = POLLRDNORM; - } - if (exceptfds && FD_ISSET(i, exceptfds)) { - data.fds[pfd_index].events |= POLLRDBAND; - } - if (writefds && FD_ISSET(i, writefds)) { - data.fds[pfd_index].events |= POLLWRNORM; - } - if (data.fds[pfd_index].events != 0) { - /* - * Set the file descriptor to be polled and - * clear revents in case of a timeout which - * leaves fds unchanged: - */ - data.fds[pfd_index].fd = i; - data.fds[pfd_index].revents = 0; - pfd_index--; - } - } - if (((ret = __sys_poll(data.fds, data.nfds, 0)) == 0) && - (f_wait != 0)) { - curthread->data.poll_data = &data; - curthread->interrupted = 0; - _thread_kern_sched_state(PS_SELECT_WAIT, __FILE__, __LINE__); - if (curthread->interrupted) { - errno = EINTR; - data.nfds = 0; - ret = -1; - } else - ret = data.nfds; - } - } - - if (ret >= 0) { - numfds = 0; - for (i = 0; i < fd_count; i++) { - /* - * Check the results of the poll and clear - * this file descriptor from the fdset if - * the requested event wasn't ready. - */ - - /* - * First check for invalid descriptor. - * If found, set errno and return -1. - */ - if (data.fds[i].revents & POLLNVAL) { - errno = EBADF; - return -1; - } - - got_events = 0; - if (readfds != NULL) { - if (FD_ISSET(data.fds[i].fd, readfds)) { - if ((data.fds[i].revents & (POLLIN - | POLLRDNORM | POLLERR - | POLLHUP | POLLNVAL)) != 0) - got_events++; - else - FD_CLR(data.fds[i].fd, readfds); - } - } - if (writefds != NULL) { - if (FD_ISSET(data.fds[i].fd, writefds)) { - if ((data.fds[i].revents & (POLLOUT - | POLLWRNORM | POLLWRBAND | POLLERR - | POLLHUP | POLLNVAL)) != 0) - got_events++; - else - FD_CLR(data.fds[i].fd, - writefds); - } - } - if (exceptfds != NULL) { - if (FD_ISSET(data.fds[i].fd, exceptfds)) { - if (data.fds[i].revents & (POLLRDBAND | - POLLPRI)) - got_events++; - else - FD_CLR(data.fds[i].fd, - exceptfds); - } - } - if (got_events != 0) - numfds+=got_events; - } - ret = numfds; - } - - return (ret); -} - -int -__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, - struct timeval *timeout) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _select(numfds, readfds, writefds, exceptfds, timeout); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_self.c b/lib/libc_r/uthread/uthread_self.c deleted file mode 100644 index 8a30b7a..0000000 --- a/lib/libc_r/uthread/uthread_self.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_self, pthread_self); - -pthread_t -_pthread_self(void) -{ - /* Return the running thread pointer: */ - return (_get_curthread()); -} diff --git a/lib/libc_r/uthread/uthread_sem.c b/lib/libc_r/uthread/uthread_sem.c deleted file mode 100644 index f85bb91..0000000 --- a/lib/libc_r/uthread/uthread_sem.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <stdlib.h> -#include <errno.h> -#include <semaphore.h> -#include "namespace.h" -#include <pthread.h> -#include "un-namespace.h" -#include "pthread_private.h" - -#define _SEM_CHECK_VALIDITY(sem) \ - if ((*(sem))->magic != SEM_MAGIC) { \ - errno = EINVAL; \ - retval = -1; \ - goto RETURN; \ - } - -__weak_reference(_sem_init, sem_init); -__weak_reference(_sem_destroy, sem_destroy); -__weak_reference(_sem_open, sem_open); -__weak_reference(_sem_close, sem_close); -__weak_reference(_sem_unlink, sem_unlink); -__weak_reference(_sem_wait, sem_wait); -__weak_reference(_sem_trywait, sem_trywait); -__weak_reference(_sem_post, sem_post); -__weak_reference(_sem_getvalue, sem_getvalue); - - -int -_sem_init(sem_t *sem, int pshared, unsigned int value) -{ - int retval; - - /* - * Range check the arguments. - */ - if (pshared != 0) { - /* - * The user wants a semaphore that can be shared among - * processes, which this implementation can't do. Sounds like a - * permissions problem to me (yeah right). - */ - errno = EPERM; - retval = -1; - goto RETURN; - } - - if (value > SEM_VALUE_MAX) { - errno = EINVAL; - retval = -1; - goto RETURN; - } - - *sem = (sem_t)malloc(sizeof(struct sem)); - if (*sem == NULL) { - errno = ENOSPC; - retval = -1; - goto RETURN; - } - - /* - * Initialize the semaphore. - */ - if (_pthread_mutex_init(&(*sem)->lock, NULL) != 0) { - free(*sem); - errno = ENOSPC; - retval = -1; - goto RETURN; - } - - if (_pthread_cond_init(&(*sem)->gtzero, NULL) != 0) { - _pthread_mutex_destroy(&(*sem)->lock); - free(*sem); - errno = ENOSPC; - retval = -1; - goto RETURN; - } - - (*sem)->count = (u_int32_t)value; - (*sem)->nwaiters = 0; - (*sem)->magic = SEM_MAGIC; - - retval = 0; - RETURN: - return retval; -} - -int -_sem_destroy(sem_t *sem) -{ - int retval; - - _SEM_CHECK_VALIDITY(sem); - - /* Make sure there are no waiters. */ - _pthread_mutex_lock(&(*sem)->lock); - if ((*sem)->nwaiters > 0) { - _pthread_mutex_unlock(&(*sem)->lock); - errno = EBUSY; - retval = -1; - goto RETURN; - } - _pthread_mutex_unlock(&(*sem)->lock); - - _pthread_mutex_destroy(&(*sem)->lock); - _pthread_cond_destroy(&(*sem)->gtzero); - (*sem)->magic = 0; - - free(*sem); - - retval = 0; - RETURN: - return retval; -} - -sem_t * -_sem_open(const char *name, int oflag, ...) -{ - errno = ENOSYS; - return SEM_FAILED; -} - -int -_sem_close(sem_t *sem) -{ - errno = ENOSYS; - return -1; -} - -int -_sem_unlink(const char *name) -{ - errno = ENOSYS; - return -1; -} - -int -_sem_wait(sem_t *sem) -{ - int retval; - - _thread_enter_cancellation_point(); - - _SEM_CHECK_VALIDITY(sem); - - _pthread_mutex_lock(&(*sem)->lock); - - while ((*sem)->count == 0) { - (*sem)->nwaiters++; - _pthread_cond_wait(&(*sem)->gtzero, &(*sem)->lock); - (*sem)->nwaiters--; - } - (*sem)->count--; - - _pthread_mutex_unlock(&(*sem)->lock); - - retval = 0; - RETURN: - _thread_leave_cancellation_point(); - return retval; -} - -int -_sem_trywait(sem_t *sem) -{ - int retval; - - _SEM_CHECK_VALIDITY(sem); - - _pthread_mutex_lock(&(*sem)->lock); - - if ((*sem)->count > 0) { - (*sem)->count--; - retval = 0; - } else { - errno = EAGAIN; - retval = -1; - } - - _pthread_mutex_unlock(&(*sem)->lock); - - RETURN: - return retval; -} - -int -_sem_post(sem_t *sem) -{ - int retval; - - _SEM_CHECK_VALIDITY(sem); - - /* - * sem_post() is required to be safe to call from within signal - * handlers. Thus, we must defer signals. - */ - _thread_kern_sig_defer(); - - _pthread_mutex_lock(&(*sem)->lock); - - (*sem)->count++; - if ((*sem)->nwaiters > 0) - _pthread_cond_signal(&(*sem)->gtzero); - - _pthread_mutex_unlock(&(*sem)->lock); - - _thread_kern_sig_undefer(); - retval = 0; - RETURN: - return retval; -} - -int -_sem_getvalue(sem_t *sem, int *sval) -{ - int retval; - - _SEM_CHECK_VALIDITY(sem); - - _pthread_mutex_lock(&(*sem)->lock); - *sval = (int)(*sem)->count; - _pthread_mutex_unlock(&(*sem)->lock); - - retval = 0; - RETURN: - return retval; -} diff --git a/lib/libc_r/uthread/uthread_sendfile.c b/lib/libc_r/uthread/uthread_sendfile.c deleted file mode 100644 index ddaddeb..0000000 --- a/lib/libc_r/uthread/uthread_sendfile.c +++ /dev/null @@ -1,194 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/fcntl.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/uio.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sendfile, sendfile); - -int -_sendfile(int fd, int s, off_t offset, size_t nbytes, struct sf_hdtr *hdtr, - off_t *sbytes, int flags) -{ - struct pthread *curthread = _get_curthread(); - int type, blocking; - int ret = 0; - ssize_t wvret, num = 0; - off_t n, nwritten = 0; - - /* - * Write the headers if any. - * If some data is written but not all we must return here. - */ - if ((hdtr != NULL) && (hdtr->headers != NULL)) { - if ((wvret = writev(s, hdtr->headers, hdtr->hdr_cnt)) == -1) { - ret = -1; - goto ERROR; - } else { - int i; - ssize_t hdrtot; - - nwritten += wvret; - - for (i = 0, hdrtot = 0; i < hdtr->hdr_cnt; i++) - hdrtot += hdtr->headers[i].iov_len; - if (wvret < hdrtot) - goto SHORT_WRITE; - } - } - - /* Lock the descriptors. */ - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) != 0) { - ret = -1; - errno = EBADF; - goto ERROR; - } - if ((ret = _FD_LOCK(s, FD_WRITE, NULL)) != 0) { - ret = -1; - errno = EBADF; - goto ERROR_1; - } - - /* Check the descriptor access modes. */ - type = _thread_fd_getflags(fd) & O_ACCMODE; - if (type != O_RDONLY && type != O_RDWR) { - /* File is not open for read. */ - ret = -1; - errno = EBADF; - goto ERROR_2; - } - type = _thread_fd_getflags(s) & O_ACCMODE; - if (type != O_WRONLY && type != O_RDWR) { - /* File is not open for write. */ - ret = -1; - errno = EBADF; - goto ERROR_2; - } - - /* Check if file operations are to block */ - blocking = ((_thread_fd_getflags(s) & O_NONBLOCK) == 0); - - /* - * Loop while no error occurs and until the expected number of bytes are - * written. - */ - for (;;) { - /* Perform a non-blocking sendfile syscall. */ - ret = __sys_sendfile(fd, s, offset + num, nbytes - num, - NULL, &n, flags); - - /* - * We have to handle the sideways return path of sendfile. - * - * If the result is 0, we're done. - * If the result is anything else check the errno. - * If the errno is not EGAIN return the error. - * Otherwise, take into account how much - * sendfile may have written for us because sendfile can - * return EAGAIN even though it has written data. - * - * We don't clear 'ret' because the sendfile(2) syscall - * would not have either. - */ - if (ret == 0) { - /* Writing completed. */ - num += n; - break; - } else if ((ret == -1) && (errno == EAGAIN)) { - /* - * Some bytes were written but there are still more to - * write. - */ - - /* Update the count of bytes written. */ - num += n; - - /* - * If we're not blocking then return. - */ - if (!blocking) { - _FD_UNLOCK(s, FD_WRITE); - _FD_UNLOCK(fd, FD_READ); - goto SHORT_WRITE; - } - - /* - * Otherwise wait on the fd. - */ - curthread->data.fd.fd = fd; - _thread_kern_set_timeout(NULL); - - /* Reset the interrupted operation flag. */ - curthread->interrupted = 0; - - _thread_kern_sched_state(PS_FDW_WAIT, __FILE__, - __LINE__); - - if (curthread->interrupted) { - /* Interrupted by a signal. Return an error. */ - break; - } - } else { - /* Incomplete non-blocking syscall, or error. */ - break; - } - } - - ERROR_2: - _FD_UNLOCK(s, FD_WRITE); - ERROR_1: - _FD_UNLOCK(fd, FD_READ); - ERROR: - if (ret == 0) { - /* Write the trailers, if any. */ - if ((hdtr != NULL) && (hdtr->trailers != NULL)) { - if ((wvret = writev(s, hdtr->trailers, hdtr->trl_cnt)) - == -1) - ret = -1; - else - nwritten += wvret; - } - } - SHORT_WRITE: - if (sbytes != NULL) { - /* - * Number of bytes written in headers/trailers, plus in the main - * sendfile() loop. - */ - *sbytes = nwritten + num; - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_sendmsg.c b/lib/libc_r/uthread/uthread_sendmsg.c deleted file mode 100644 index 30262f4..0000000 --- a/lib/libc_r/uthread/uthread_sendmsg.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__sendmsg, sendmsg); - -ssize_t -_sendmsg(int fd, const struct msghdr *msg, int flags) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - while ((ret = __sys_sendmsg(fd, msg, flags)) < 0) { - if (!(_thread_fd_getflags(fd) & O_NONBLOCK) - && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) { - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(NULL); - curthread->interrupted = 0; - _thread_kern_sched_state(PS_FDW_WAIT, __FILE__, __LINE__); - - /* Check if the operation was interrupted: */ - if (curthread->interrupted) { - errno = EINTR; - ret = -1; - break; - } - } else { - ret = -1; - break; - } - } - _FD_UNLOCK(fd, FD_WRITE); - } - return (ret); -} - -ssize_t -__sendmsg(int fd, const struct msghdr *msg, int flags) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _sendmsg(fd, msg, flags); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_sendto.c b/lib/libc_r/uthread/uthread_sendto.c deleted file mode 100644 index 2e4367a..0000000 --- a/lib/libc_r/uthread/uthread_sendto.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__sendto, sendto); - -ssize_t -_sendto(int fd, const void *msg, size_t len, int flags, const struct - sockaddr * to, socklen_t to_len) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - while ((ret = __sys_sendto(fd, msg, len, flags, to, to_len)) < 0) { - if (((_thread_fd_getflags(fd) & O_NONBLOCK) == 0) - && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) { - curthread->data.fd.fd = fd; - - /* Set the timeout: */ - _thread_kern_set_timeout(NULL); - curthread->interrupted = 0; - _thread_kern_sched_state(PS_FDW_WAIT, __FILE__, __LINE__); - - /* Check if the operation was interrupted: */ - if (curthread->interrupted) { - errno = EINTR; - ret = -1; - break; - } - } else { - ret = -1; - break; - } - } - _FD_UNLOCK(fd, FD_WRITE); - } - return (ret); -} - -ssize_t -__sendto(int fd, const void *msg, size_t len, int flags, const struct - sockaddr * to, socklen_t to_len) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _sendto(fd, msg, len, flags, to, to_len); - _thread_leave_cancellation_point(); - - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_seterrno.c b/lib/libc_r/uthread/uthread_seterrno.c deleted file mode 100644 index dfcc576..0000000 --- a/lib/libc_r/uthread/uthread_seterrno.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include "pthread_private.h" - -/* - * This function needs to reference the global error variable which is - * normally hidden from the user. - */ -#ifdef errno -#undef errno; -#endif -extern int errno; - -void -_thread_seterrno(pthread_t thread, int error) -{ - /* Check for the initial thread: */ - if (thread == _thread_initial) - /* The initial thread always uses the global error variable: */ - errno = error; - else - /* - * Threads other than the initial thread always use the error - * field in the thread structureL - */ - thread->error = error; -} diff --git a/lib/libc_r/uthread/uthread_setprio.c b/lib/libc_r/uthread/uthread_setprio.c deleted file mode 100644 index efc96c1..0000000 --- a/lib/libc_r/uthread/uthread_setprio.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_setprio, pthread_setprio); - -int -_pthread_setprio(pthread_t pthread, int prio) -{ - int ret, policy; - struct sched_param param; - - if ((ret = pthread_getschedparam(pthread, &policy, ¶m)) == 0) { - param.sched_priority = prio; - ret = pthread_setschedparam(pthread, policy, ¶m); - } - - /* Return the error status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_setschedparam.c b/lib/libc_r/uthread/uthread_setschedparam.c deleted file mode 100644 index 7696762..0000000 --- a/lib/libc_r/uthread/uthread_setschedparam.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/param.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_setschedparam, pthread_setschedparam); - -int -_pthread_setschedparam(pthread_t pthread, int policy, - const struct sched_param *param) -{ - int old_prio, in_readyq = 0, ret = 0; - - if ((param == NULL) || (policy < SCHED_FIFO) || (policy > SCHED_RR)) { - /* Return an invalid argument error: */ - ret = EINVAL; - } else if ((param->sched_priority < PTHREAD_MIN_PRIORITY) || - (param->sched_priority > PTHREAD_MAX_PRIORITY)) { - /* Return an unsupported value error. */ - ret = ENOTSUP; - - /* Find the thread in the list of active threads: */ - } else if ((ret = _find_thread(pthread)) == 0) { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - if (param->sched_priority != - PTHREAD_BASE_PRIORITY(pthread->base_priority)) { - /* - * Remove the thread from its current priority - * queue before any adjustments are made to its - * active priority: - */ - old_prio = pthread->active_priority; - if ((pthread->flags & PTHREAD_FLAGS_IN_PRIOQ) != 0) { - in_readyq = 1; - PTHREAD_PRIOQ_REMOVE(pthread); - } - - /* Set the thread base priority: */ - pthread->base_priority &= - (PTHREAD_SIGNAL_PRIORITY | PTHREAD_RT_PRIORITY); - pthread->base_priority = param->sched_priority; - - /* Recalculate the active priority: */ - pthread->active_priority = MAX(pthread->base_priority, - pthread->inherited_priority); - - if (in_readyq) { - if ((pthread->priority_mutex_count > 0) && - (old_prio > pthread->active_priority)) { - /* - * POSIX states that if the priority is - * being lowered, the thread must be - * inserted at the head of the queue for - * its priority if it owns any priority - * protection or inheritence mutexes. - */ - PTHREAD_PRIOQ_INSERT_HEAD(pthread); - } - else - PTHREAD_PRIOQ_INSERT_TAIL(pthread); - } - - /* - * Check for any mutex priority adjustments. This - * includes checking for a priority mutex on which - * this thread is waiting. - */ - _mutex_notify_priochange(pthread); - } - - /* Set the scheduling policy: */ - pthread->attr.sched_policy = policy; - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_setsockopt.c b/lib/libc_r/uthread/uthread_setsockopt.c deleted file mode 100644 index 1c9baf1..0000000 --- a/lib/libc_r/uthread/uthread_setsockopt.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_setsockopt, setsockopt); - -int -_setsockopt(int fd, int level, int optname, const void *optval, socklen_t - optlen) -{ - int ret; - - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_setsockopt(fd, level, optname, optval, optlen); - _FD_UNLOCK(fd, FD_RDWR); - } - return ret; -} diff --git a/lib/libc_r/uthread/uthread_shutdown.c b/lib/libc_r/uthread/uthread_shutdown.c deleted file mode 100644 index e97b9b7..0000000 --- a/lib/libc_r/uthread/uthread_shutdown.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_shutdown, shutdown); - -int -_shutdown(int fd, int how) -{ - int ret; - - switch (how) { - case 0: - if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) { - ret = __sys_shutdown(fd, how); - _FD_UNLOCK(fd, FD_READ); - } - break; - case 1: - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - ret = __sys_shutdown(fd, how); - _FD_UNLOCK(fd, FD_WRITE); - } - break; - case 2: - if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { - ret = __sys_shutdown(fd, how); - _FD_UNLOCK(fd, FD_RDWR); - } - break; - default: - errno = EBADF; - ret = -1; - break; - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_sig.c b/lib/libc_r/uthread/uthread_sig.c deleted file mode 100644 index 7f700b2..0000000 --- a/lib/libc_r/uthread/uthread_sig.c +++ /dev/null @@ -1,1165 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/param.h> -#include <sys/types.h> -#include <sys/signalvar.h> -#include <signal.h> -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#include <setjmp.h> -#include <string.h> -#include <pthread.h> -#include "pthread_private.h" - -/* Prototypes: */ -static void thread_sig_add(struct pthread *pthread, int sig, int has_args); -static void thread_sig_check_state(struct pthread *pthread, int sig); -static struct pthread *thread_sig_find(int sig); -static void thread_sig_handle_special(int sig); -static void thread_sigframe_add(struct pthread *thread, int sig, - int has_args); -static void thread_sigframe_save(struct pthread *thread, - struct pthread_signal_frame *psf); -static void thread_sig_invoke_handler(int sig, siginfo_t *info, - ucontext_t *ucp, int unblock); - -/*#define DEBUG_SIGNAL*/ -#ifdef DEBUG_SIGNAL -#define DBG_MSG stdout_debug -#else -#define DBG_MSG(x...) -#endif - -#if defined(_PTHREADS_INVARIANTS) -#define SIG_SET_ACTIVE() _sig_in_handler = 1 -#define SIG_SET_INACTIVE() _sig_in_handler = 0 -#else -#define SIG_SET_ACTIVE() -#define SIG_SET_INACTIVE() -#endif - -void -_thread_sig_handler(int sig, siginfo_t *info, ucontext_t *ucp) -{ - struct pthread *curthread = _get_curthread(); - struct pthread *pthread, *pthread_h; - int in_sched = _thread_kern_in_sched; - char c; - sigset_t sigset; - - if (ucp == NULL) - PANIC("Thread signal handler received null context"); - DBG_MSG("Got signal %d, current thread %p\n", sig, curthread); - - /* Check if an interval timer signal: */ - if (sig == _SCHED_SIGNAL) { - /* Update the scheduling clock: */ - gettimeofday((struct timeval *)&_sched_tod, NULL); - _sched_ticks++; - - if (in_sched != 0) { - /* - * The scheduler is already running; ignore this - * signal. - */ - } - /* - * Check if the scheduler interrupt has come when - * the currently running thread has deferred thread - * signals. - */ - else if (curthread->sig_defer_count > 0) - curthread->yield_on_sig_undefer = 1; - else { - /* Schedule the next thread: */ - _thread_kern_sched(ucp); - - /* - * This point should not be reached, so abort the - * process: - */ - PANIC("Returned to signal function from scheduler"); - } - } - /* - * Check if the kernel has been interrupted while the scheduler - * is accessing the scheduling queues or if there is a currently - * running thread that has deferred signals. - */ - else if ((in_sched != 0) || (curthread->sig_defer_count > 0)) { - /* Cast the signal number to a character variable: */ - c = sig; - - /* - * Write the signal number to the kernel pipe so that it will - * be ready to read when this signal handler returns. - */ - if (_queue_signals != 0) { - ssize_t wgot; - do { - wgot = __sys_write(_thread_kern_pipe[1], &c, - 1); - } while (wgot < 0 && errno == EINTR); - if (wgot < 0 && errno != EAGAIN) { - PANIC("Failed to queue signal"); - } - DBG_MSG("Got signal %d, queueing to kernel pipe\n", sig); - } - if (_thread_sigq[sig - 1].blocked == 0) { - DBG_MSG("Got signal %d, adding to _thread_sigq\n", sig); - /* - * Do not block this signal; it will be blocked - * when the pending signals are run down. - */ - /* _thread_sigq[sig - 1].blocked = 1; */ - - /* - * Queue the signal, saving siginfo and sigcontext - * (ucontext). - * - * XXX - Do we need to copy siginfo and ucp? - */ - _thread_sigq[sig - 1].signo = sig; - if (info != NULL) - memcpy(&_thread_sigq[sig - 1].siginfo, info, - sizeof(*info)); - memcpy(&_thread_sigq[sig - 1].uc, ucp, sizeof(*ucp)); - - /* Indicate that there are queued signals: */ - _thread_sigq[sig - 1].pending = 1; - _sigq_check_reqd = 1; - } - /* These signals need special handling: */ - else if (sig == SIGCHLD || sig == SIGTSTP || - sig == SIGTTIN || sig == SIGTTOU) { - _thread_sigq[sig - 1].pending = 1; - _thread_sigq[sig - 1].signo = sig; - _sigq_check_reqd = 1; - } - else - DBG_MSG("Got signal %d, ignored.\n", sig); - } - /* - * The signal handlers should have been installed so that they - * cannot be interrupted by other signals. - */ - else if (_thread_sigq[sig - 1].blocked == 0) { - /* - * The signal is not blocked; handle the signal. - * - * Ignore subsequent occurrences of this signal - * until the current signal is handled: - */ - _thread_sigq[sig - 1].blocked = 1; - - /* This signal will be handled; clear the pending flag: */ - _thread_sigq[sig - 1].pending = 0; - - /* - * Save siginfo and sigcontext (ucontext). - * - * XXX - Do we need to copy siginfo and ucp? - */ - _thread_sigq[sig - 1].signo = sig; - - if (info != NULL) - memcpy(&_thread_sigq[sig - 1].siginfo, info, - sizeof(*info)); - memcpy(&_thread_sigq[sig - 1].uc, ucp, sizeof(*ucp)); - SIG_SET_ACTIVE(); - - /* Handle special signals: */ - thread_sig_handle_special(sig); - - pthread_h = NULL; - if ((pthread = thread_sig_find(sig)) == NULL) - DBG_MSG("No thread to handle signal %d\n", sig); - else if (pthread == curthread) { - /* Call the signal handler for the current thread: */ - thread_sig_invoke_handler(sig, info, ucp, 2); - - /* - * Set the process signal mask in the context; it - * could have changed by the handler. - */ - ucp->uc_sigmask = _process_sigmask; - - /* - * The signal mask was restored; check for any - * pending signals: - */ - sigset = curthread->sigpend; - SIGSETOR(sigset, _process_sigpending); - SIGSETNAND(sigset, curthread->sigmask); - if (SIGNOTEMPTY(sigset)) - curthread->check_pending = 1; - - /* Resume the interrupted thread: */ - __sys_sigreturn(ucp); - } else { - DBG_MSG("Got signal %d, adding frame to thread %p\n", - sig, pthread); - - /* Setup the target thread to receive the signal: */ - thread_sig_add(pthread, sig, /*has_args*/ 1); - - /* Take a peek at the next ready to run thread: */ - pthread_h = PTHREAD_PRIOQ_FIRST(); - DBG_MSG("Finished adding frame, head of prio list %p\n", - pthread_h); - } - SIG_SET_INACTIVE(); - - /* - * Switch to a different context if the currently running - * thread takes a signal, or if another thread takes a - * signal and the currently running thread is not in a - * signal handler. - */ - if ((pthread_h != NULL) && - (pthread_h->active_priority > curthread->active_priority)) { - /* Enter the kernel scheduler: */ - _thread_kern_sched(ucp); - } - } - else { - SIG_SET_ACTIVE(); - thread_sig_handle_special(sig); - SIG_SET_INACTIVE(); - } -} - -static void -thread_sig_invoke_handler(int sig, siginfo_t *info, ucontext_t *ucp, - int unblock) - { - struct pthread *curthread = _get_curthread(); - void (*sigfunc)(int, siginfo_t *, void *); - int saved_seqno; - sigset_t saved_sigmask; - - /* Invoke the signal handler without going through the scheduler: - */ - DBG_MSG("Got signal %d, calling handler for current thread %p\n", - sig, curthread); - - /* Save the threads signal mask: */ - saved_sigmask = curthread->sigmask; - saved_seqno = curthread->sigmask_seqno; - - /* Setup the threads signal mask: */ - SIGSETOR(curthread->sigmask, _thread_sigact[sig - 1].sa_mask); - sigaddset(&curthread->sigmask, sig); - - if (unblock > 0) { - /* - * Unblock the signal and restore the process signal - * mask in case we don't return from the handler: - */ - _thread_sigq[sig - 1].blocked = 0; - if (unblock > 1) - __sys_sigprocmask(SIG_SETMASK, &_process_sigmask, - NULL); - } - - /* - * Check that a custom handler is installed and if - * the signal is not blocked: - */ - sigfunc = _thread_sigact[sig - 1].sa_sigaction; - if (((__sighandler_t *)sigfunc != SIG_DFL) && - ((__sighandler_t *)sigfunc != SIG_IGN)) { - if (((_thread_sigact[sig - 1].sa_flags & SA_SIGINFO) != 0) || - (info == NULL)) - (*(sigfunc))(sig, info, ucp); - else - (*(sigfunc))(sig, (void*)(intptr_t)info->si_code, ucp); - } - /* - * Only restore the signal mask if it hasn't been changed by the - * application during invocation of the signal handler: - */ - if (curthread->sigmask_seqno == saved_seqno) - curthread->sigmask = saved_sigmask; -} - -/* - * Find a thread that can handle the signal. - */ -struct pthread * -thread_sig_find(int sig) -{ - struct pthread *curthread = _get_curthread(); - int handler_installed; - struct pthread *pthread, *pthread_next; - struct pthread *suspended_thread, *signaled_thread; - - DBG_MSG("Looking for thread to handle signal %d\n", sig); - /* Check if the signal requires a dump of thread information: */ - if (sig == SIGINFO) { - /* Dump thread information to file: */ - _thread_dump_info(); - - /* Unblock this signal to allow further dumps: */ - _thread_sigq[sig - 1].blocked = 0; - } - /* Check if an interval timer signal: */ - else if (sig == _SCHED_SIGNAL) { - /* - * This shouldn't ever occur (should this panic?). - */ - } else { - /* - * Enter a loop to look for threads that have the signal - * unmasked. POSIX specifies that a thread in a sigwait - * will get the signal over any other threads. Second - * preference will be threads in a sigsuspend. Third - * preference will be the current thread. If none of the - * above, then the signal is delivered to the first thread - * that is found. Note that if a custom handler is not - * installed, the signal only affects threads in sigwait. - */ - suspended_thread = NULL; - if ((curthread != &_thread_kern_thread) && - !sigismember(&curthread->sigmask, sig)) - signaled_thread = curthread; - else - signaled_thread = NULL; - if ((_thread_sigact[sig - 1].sa_handler == SIG_IGN) || - (_thread_sigact[sig - 1].sa_handler == SIG_DFL)) - handler_installed = 0; - else - handler_installed = 1; - - for (pthread = TAILQ_FIRST(&_waitingq); - pthread != NULL; pthread = pthread_next) { - /* - * Grab the next thread before possibly destroying - * the link entry. - */ - pthread_next = TAILQ_NEXT(pthread, pqe); - - if ((pthread->state == PS_SIGWAIT) && - sigismember(pthread->data.sigwait, sig)) { - /* Change the state of the thread to run: */ - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - /* - * A signal handler is not invoked for threads - * in sigwait. Clear the blocked and pending - * flags. - */ - _thread_sigq[sig - 1].blocked = 0; - _thread_sigq[sig - 1].pending = 0; - - /* Return the signal number: */ - pthread->signo = sig; - - /* - * POSIX doesn't doesn't specify which thread - * will get the signal if there are multiple - * waiters, so we give it to the first thread - * we find. - * - * Do not attempt to deliver this signal - * to other threads and do not add the signal - * to the process pending set. - */ - return (NULL); - } - else if ((handler_installed != 0) && - !sigismember(&pthread->sigmask, sig) && - ((pthread->flags & PTHREAD_FLAGS_SUSPENDED) == 0)) { - if (pthread->state == PS_SIGSUSPEND) { - if (suspended_thread == NULL) - suspended_thread = pthread; - } else if (signaled_thread == NULL) - signaled_thread = pthread; - } - } - - /* - * Only perform wakeups and signal delivery if there is a - * custom handler installed: - */ - if (handler_installed == 0) { - /* - * There is no handler installed. Unblock the - * signal so that if a handler _is_ installed, any - * subsequent signals can be handled. - */ - _thread_sigq[sig - 1].blocked = 0; - } else { - /* - * If we didn't find a thread in the waiting queue, - * check the all threads queue: - */ - if (suspended_thread == NULL && - signaled_thread == NULL) { - /* - * Enter a loop to look for other threads - * capable of receiving the signal: - */ - TAILQ_FOREACH(pthread, &_thread_list, tle) { - if (!sigismember(&pthread->sigmask, - sig)) { - signaled_thread = pthread; - break; - } - } - } - - if (suspended_thread == NULL && - signaled_thread == NULL) - /* - * Add it to the set of signals pending - * on the process: - */ - sigaddset(&_process_sigpending, sig); - else { - /* - * We only deliver the signal to one thread; - * give preference to the suspended thread: - */ - if (suspended_thread != NULL) - pthread = suspended_thread; - else - pthread = signaled_thread; - return (pthread); - } - } - } - - /* Returns nothing. */ - return (NULL); -} - -void -_thread_sig_check_pending(struct pthread *pthread) -{ - sigset_t sigset; - int i; - - /* - * Check if there are pending signals for the running - * thread or process that aren't blocked: - */ - sigset = pthread->sigpend; - SIGSETOR(sigset, _process_sigpending); - SIGSETNAND(sigset, pthread->sigmask); - if (SIGNOTEMPTY(sigset)) { - for (i = 1; i < NSIG; i++) { - if (sigismember(&sigset, i) != 0) { - if (sigismember(&pthread->sigpend, i) != 0) - thread_sig_add(pthread, i, - /*has_args*/ 0); - else { - thread_sig_add(pthread, i, - /*has_args*/ 1); - sigdelset(&_process_sigpending, i); - } - } - } - } -} - -/* - * This can only be called from the kernel scheduler. It assumes that - * all thread contexts are saved and that a signal frame can safely be - * added to any user thread. - */ -void -_thread_sig_handle_pending(void) -{ - struct pthread *pthread; - int i, sig; - - PTHREAD_ASSERT(_thread_kern_in_sched != 0, - "_thread_sig_handle_pending called from outside kernel schedule"); - /* - * Check the array of pending signals: - */ - for (i = 0; i < NSIG; i++) { - if (_thread_sigq[i].pending != 0) { - /* This signal is no longer pending. */ - _thread_sigq[i].pending = 0; - - sig = _thread_sigq[i].signo; - - /* Some signals need special handling: */ - thread_sig_handle_special(sig); - - if (_thread_sigq[i].blocked == 0) { - /* - * Block future signals until this one - * is handled: - */ - _thread_sigq[i].blocked = 1; - - if ((pthread = thread_sig_find(sig)) != NULL) { - /* - * Setup the target thread to receive - * the signal: - */ - thread_sig_add(pthread, sig, - /*has_args*/ 1); - } - } - } - } -} - -static void -thread_sig_handle_special(int sig) -{ - struct pthread *pthread, *pthread_next; - int i; - - switch (sig) { - case SIGCHLD: - /* - * Go through the file list and set all files - * to non-blocking again in case the child - * set some of them to block. Sigh. - */ - for (i = 0; i < _thread_dtablesize; i++) { - /* Check if this file is used: */ - if (_thread_fd_table[i] != NULL) { - /* - * Set the file descriptor to non-blocking: - */ - __sys_fcntl(i, F_SETFL, - _thread_fd_getflags(i) | O_NONBLOCK); - } - } - /* - * Enter a loop to wake up all threads waiting - * for a process to complete: - */ - for (pthread = TAILQ_FIRST(&_waitingq); - pthread != NULL; pthread = pthread_next) { - /* - * Grab the next thread before possibly - * destroying the link entry: - */ - pthread_next = TAILQ_NEXT(pthread, pqe); - - /* - * If this thread is waiting for a child - * process to complete, wake it up: - */ - if (pthread->state == PS_WAIT_WAIT) { - /* Make the thread runnable: */ - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - - /* Return the signal number: */ - pthread->signo = sig; - } - } - break; - - /* - * POSIX says that pending SIGCONT signals are - * discarded when one of these signals occurs. - */ - case SIGTSTP: - case SIGTTIN: - case SIGTTOU: - /* - * Enter a loop to discard pending SIGCONT - * signals: - */ - TAILQ_FOREACH(pthread, &_thread_list, tle) { - sigdelset(&pthread->sigpend, SIGCONT); - } - break; - - default: - break; - } -} - -/* - * Perform thread specific actions in response to a signal. - * This function is only called if there is a handler installed - * for the signal, and if the target thread has the signal - * unmasked. - */ -static void -thread_sig_add(struct pthread *pthread, int sig, int has_args) -{ - int restart; - int suppress_handler = 0; - int thread_is_active = 0; - - restart = _thread_sigact[sig - 1].sa_flags & SA_RESTART; - - /* Make sure this signal isn't still in the pending set: */ - sigdelset(&pthread->sigpend, sig); - - /* - * Process according to thread state: - */ - switch (pthread->state) { - /* - * States which do not change when a signal is trapped: - */ - case PS_DEAD: - case PS_DEADLOCK: - case PS_STATE_MAX: - case PS_SIGTHREAD: - /* - * You can't call a signal handler for threads in these - * states. - */ - suppress_handler = 1; - break; - - /* - * States which do not need any cleanup handling when signals - * occur: - */ - case PS_RUNNING: - /* - * Remove the thread from the queue before changing its - * priority: - */ - if ((pthread->flags & PTHREAD_FLAGS_IN_PRIOQ) != 0) - PTHREAD_PRIOQ_REMOVE(pthread); - else - /* - * This thread is running; avoid placing it in - * the run queue: - */ - thread_is_active = 1; - break; - - case PS_SUSPENDED: - break; - - case PS_SPINBLOCK: - /* Remove the thread from the workq and waitq: */ - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_WAITQ_REMOVE(pthread); - /* Make the thread runnable: */ - PTHREAD_SET_STATE(pthread, PS_RUNNING); - break; - - case PS_SIGWAIT: - /* The signal handler is not called for threads in SIGWAIT. */ - suppress_handler = 1; - /* Wake up the thread if the signal is blocked. */ - if (sigismember(pthread->data.sigwait, sig)) { - /* Change the state of the thread to run: */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Return the signal number: */ - pthread->signo = sig; - } else - /* Increment the pending signal count. */ - sigaddset(&pthread->sigpend, sig); - break; - - /* - * The wait state is a special case due to the handling of - * SIGCHLD signals. - */ - case PS_WAIT_WAIT: - if (sig == SIGCHLD) { - /* Change the state of the thread to run: */ - PTHREAD_WAITQ_REMOVE(pthread); - PTHREAD_SET_STATE(pthread, PS_RUNNING); - - /* Return the signal number: */ - pthread->signo = sig; - } - else { - /* - * Mark the thread as interrupted only if the - * restart flag is not set on the signal action: - */ - if (restart == 0) - pthread->interrupted = 1; - PTHREAD_WAITQ_REMOVE(pthread); - PTHREAD_SET_STATE(pthread, PS_RUNNING); - } - break; - - /* - * States which cannot be interrupted but still require the - * signal handler to run: - */ - case PS_COND_WAIT: - case PS_MUTEX_WAIT: - /* - * Remove the thread from the wait queue. It will - * be added back to the wait queue once all signal - * handlers have been invoked. - */ - PTHREAD_WAITQ_REMOVE(pthread); - break; - - case PS_JOIN: - /* - * Remove the thread from the wait queue. It will - * be added back to the wait queue once all signal - * handlers have been invoked. - */ - PTHREAD_WAITQ_REMOVE(pthread); - /* Make the thread runnable: */ - PTHREAD_SET_STATE(pthread, PS_RUNNING); - break; - - /* - * States which are interruptible but may need to be removed - * from queues before any signal handler is called. - * - * XXX - We may not need to handle this condition, but will - * mark it as a potential problem. - */ - case PS_FDLR_WAIT: - case PS_FDLW_WAIT: - case PS_FILE_WAIT: - if (restart == 0) - pthread->interrupted = 1; - /* - * Remove the thread from the wait queue. Our - * signal handler hook will remove this thread - * from the fd or file queue before invoking - * the actual handler. - */ - PTHREAD_WAITQ_REMOVE(pthread); - break; - - /* - * States which are interruptible: - */ - case PS_FDR_WAIT: - case PS_FDW_WAIT: - if (restart == 0) { - /* - * Flag the operation as interrupted and - * set the state to running: - */ - pthread->interrupted = 1; - PTHREAD_SET_STATE(pthread, PS_RUNNING); - } - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_WAITQ_REMOVE(pthread); - break; - - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - case PS_SLEEP_WAIT: - /* - * Unmasked signals always cause poll, select, and sleep - * to terminate early, regardless of SA_RESTART: - */ - pthread->interrupted = 1; - /* Remove threads in poll and select from the workq: */ - if ((pthread->flags & PTHREAD_FLAGS_IN_WORKQ) != 0) - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_WAITQ_REMOVE(pthread); - PTHREAD_SET_STATE(pthread, PS_RUNNING); - break; - - case PS_SIGSUSPEND: - PTHREAD_WAITQ_REMOVE(pthread); - PTHREAD_SET_STATE(pthread, PS_RUNNING); - break; - } - - if (suppress_handler == 0) { - /* Setup a signal frame and save the current threads state: */ - thread_sigframe_add(pthread, sig, has_args); - - /* - * Signals are deferred until just before the threads - * signal handler is invoked: - */ - pthread->sig_defer_count = 1; - - /* Make sure the thread is runnable: */ - if (pthread->state != PS_RUNNING) - PTHREAD_SET_STATE(pthread, PS_RUNNING); - /* - * The thread should be removed from all scheduling - * queues at this point. Raise the priority and place - * the thread in the run queue. It is also possible - * for a signal to be sent to a suspended thread, - * mostly via pthread_kill(). If a thread is suspended, - * don't insert it into the priority queue; just set - * its state to suspended and it will run the signal - * handler when it is resumed. - */ - pthread->active_priority |= PTHREAD_SIGNAL_PRIORITY; - if ((pthread->flags & PTHREAD_FLAGS_SUSPENDED) != 0) - PTHREAD_SET_STATE(pthread, PS_SUSPENDED); - else if (thread_is_active == 0) - PTHREAD_PRIOQ_INSERT_TAIL(pthread); - } -} - -static void -thread_sig_check_state(struct pthread *pthread, int sig) -{ - /* - * Process according to thread state: - */ - switch (pthread->state) { - /* - * States which do not change when a signal is trapped: - */ - case PS_DEAD: - case PS_DEADLOCK: - case PS_STATE_MAX: - case PS_SIGTHREAD: - case PS_RUNNING: - case PS_SUSPENDED: - case PS_SPINBLOCK: - case PS_COND_WAIT: - case PS_JOIN: - case PS_MUTEX_WAIT: - break; - - case PS_SIGWAIT: - /* Wake up the thread if the signal is blocked. */ - if (sigismember(pthread->data.sigwait, sig)) { - /* Change the state of the thread to run: */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Return the signal number: */ - pthread->signo = sig; - } else - /* Increment the pending signal count. */ - sigaddset(&pthread->sigpend, sig); - break; - - /* - * The wait state is a special case due to the handling of - * SIGCHLD signals. - */ - case PS_WAIT_WAIT: - if (sig == SIGCHLD) { - /* - * Remove the thread from the wait queue and - * make it runnable: - */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Return the signal number: */ - pthread->signo = sig; - } - break; - - case PS_FDLR_WAIT: - case PS_FDLW_WAIT: - case PS_SIGSUSPEND: - case PS_SLEEP_WAIT: - /* - * Remove the thread from the wait queue and make it - * runnable: - */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Flag the operation as interrupted: */ - pthread->interrupted = 1; - break; - - /* - * These states are additionally in the work queue: - */ - case PS_FDR_WAIT: - case PS_FDW_WAIT: - case PS_FILE_WAIT: - case PS_POLL_WAIT: - case PS_SELECT_WAIT: - /* - * Remove the thread from the wait and work queues, and - * make it runnable: - */ - PTHREAD_WORKQ_REMOVE(pthread); - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Flag the operation as interrupted: */ - pthread->interrupted = 1; - break; - } -} - -/* - * Send a signal to a specific thread (ala pthread_kill): - */ -void -_thread_sig_send(struct pthread *pthread, int sig) -{ - struct pthread *curthread = _get_curthread(); - - /* Check for signals whose actions are SIG_DFL: */ - if (_thread_sigact[sig - 1].sa_handler == SIG_DFL) { - /* - * Check to see if a temporary signal handler is - * installed for sigwaiters: - */ - if (_thread_dfl_count[sig] == 0) - /* - * Deliver the signal to the process if a handler - * is not installed: - */ - kill(getpid(), sig); - /* - * Assuming we're still running after the above kill(), - * make any necessary state changes to the thread: - */ - thread_sig_check_state(pthread, sig); - } - /* - * Check that the signal is not being ignored: - */ - else if (_thread_sigact[sig - 1].sa_handler != SIG_IGN) { - if (pthread->state == PS_SIGWAIT && - sigismember(pthread->data.sigwait, sig)) { - /* Change the state of the thread to run: */ - PTHREAD_NEW_STATE(pthread, PS_RUNNING); - - /* Return the signal number: */ - pthread->signo = sig; - } else if (sigismember(&pthread->sigmask, sig)) - /* Add the signal to the pending set: */ - sigaddset(&pthread->sigpend, sig); - else if (pthread == curthread) - /* Call the signal handler for the current thread: */ - thread_sig_invoke_handler(sig, NULL, NULL, 0); - else { - /* Protect the scheduling queues: */ - _thread_kern_sig_defer(); - /* - * Perform any state changes due to signal - * arrival: - */ - thread_sig_add(pthread, sig, /* has args */ 0); - /* Unprotect the scheduling queues: */ - _thread_kern_sig_undefer(); - } - } -} - -/* - * User thread signal handler wrapper. - * - * thread - current running thread - */ -void -_thread_sig_wrapper(void) -{ - struct pthread_signal_frame *psf; - struct pthread *thread = _get_curthread(); - - /* Get the current frame and state: */ - psf = thread->curframe; - thread->curframe = NULL; - PTHREAD_ASSERT(psf != NULL, "Invalid signal frame in signal handler"); - - /* - * We're coming from the kernel scheduler; clear the in - * scheduler flag: - */ - _thread_kern_in_sched = 0; - - /* Check the threads previous state: */ - if (psf->saved_state.psd_state != PS_RUNNING) { - /* - * Do a little cleanup handling for those threads in - * queues before calling the signal handler. Signals - * for these threads are temporarily blocked until - * after cleanup handling. - */ - switch (psf->saved_state.psd_state) { - case PS_FDLR_WAIT: - case PS_FDLW_WAIT: - _fd_lock_backout(thread); - psf->saved_state.psd_state = PS_RUNNING; - break; - - case PS_COND_WAIT: - _cond_wait_backout(thread); - psf->saved_state.psd_state = PS_RUNNING; - break; - - case PS_MUTEX_WAIT: - _mutex_lock_backout(thread); - psf->saved_state.psd_state = PS_RUNNING; - break; - - default: - break; - } - } - - /* - * Lower the priority before calling the handler in case - * it never returns (longjmps back): - */ - thread->active_priority &= ~PTHREAD_SIGNAL_PRIORITY; - - /* - * Reenable interruptions without checking for the need to - * context switch: - */ - thread->sig_defer_count = 0; - - /* - * Dispatch the signal via the custom signal handler: - */ - if (psf->sig_has_args == 0) - thread_sig_invoke_handler(psf->signo, NULL, NULL, 1); - else - thread_sig_invoke_handler(psf->signo, &psf->siginfo, &psf->uc, - 1); - - /* - * Call the kernel scheduler to safely restore the frame and - * schedule the next thread: - */ - _thread_kern_sched_frame(psf); -} - -static void -thread_sigframe_add(struct pthread *thread, int sig, int has_args) -{ - struct pthread_signal_frame *psf = NULL; - unsigned long stackp; - - /* Get the top of the threads stack: */ - stackp = GET_STACK_JB(thread->ctx.jb); - -#if !defined(__ia64__) - /* - * Leave a little space on the stack and round down to the - * nearest aligned word: - */ -#if defined(__amd64__) - stackp -= 128; /* Skip over 128 byte red-zone */ -#endif - stackp -= sizeof(double); -#if defined(__amd64__) - stackp &= ~0xFUL; -#else - stackp &= ~0x3UL; -#endif -#endif - - /* Allocate room on top of the stack for a new signal frame: */ - stackp -= sizeof(struct pthread_signal_frame); -#if defined(__ia64__) || defined(__amd64__) - stackp &= ~0xFUL; -#endif - - psf = (struct pthread_signal_frame *) stackp; - - /* Save the current context in the signal frame: */ - thread_sigframe_save(thread, psf); - - /* Set handler specific information: */ - psf->sig_has_args = has_args; - psf->signo = sig; - if (has_args) { - /* Copy the signal handler arguments to the signal frame: */ - memcpy(&psf->uc, &_thread_sigq[psf->signo - 1].uc, - sizeof(psf->uc)); - memcpy(&psf->siginfo, &_thread_sigq[psf->signo - 1].siginfo, - sizeof(psf->siginfo)); - } - - /* Setup the signal mask: */ - SIGSETOR(thread->sigmask, _thread_sigact[sig - 1].sa_mask); - sigaddset(&thread->sigmask, sig); - - /* Set up the new frame: */ - thread->curframe = psf; - thread->flags &= PTHREAD_FLAGS_PRIVATE | PTHREAD_FLAGS_TRACE | - PTHREAD_FLAGS_IN_SYNCQ; - /* - * Set up the context: - */ -#if !defined(__ia64__) - stackp -= sizeof(double); -#if defined(__amd64__) - stackp &= ~0xFUL; -#endif -#endif - _setjmp(thread->ctx.jb); -#if !defined(__ia64__) - SET_STACK_JB(thread->ctx.jb, stackp); -#else - UPD_STACK_JB(thread->ctx.jb, stackp - 16); -#endif - SET_RETURN_ADDR_JB(thread->ctx.jb, _thread_sig_wrapper); -} - -void -_thread_sigframe_restore(struct pthread *thread, - struct pthread_signal_frame *psf) -{ - memcpy(&thread->ctx, &psf->ctx, sizeof(thread->ctx)); - /* - * Only restore the signal mask if it hasn't been changed - * by the application during invocation of the signal handler: - */ - if (thread->sigmask_seqno == psf->saved_state.psd_sigmask_seqno) - thread->sigmask = psf->saved_state.psd_sigmask; - thread->curframe = psf->saved_state.psd_curframe; - thread->wakeup_time = psf->saved_state.psd_wakeup_time; - thread->data = psf->saved_state.psd_wait_data; - thread->state = psf->saved_state.psd_state; - thread->flags = psf->saved_state.psd_flags; - thread->interrupted = psf->saved_state.psd_interrupted; - thread->signo = psf->saved_state.psd_signo; - thread->sig_defer_count = psf->saved_state.psd_sig_defer_count; -} - -static void -thread_sigframe_save(struct pthread *thread, struct pthread_signal_frame *psf) -{ - memcpy(&psf->ctx, &thread->ctx, sizeof(thread->ctx)); - psf->saved_state.psd_sigmask = thread->sigmask; - psf->saved_state.psd_curframe = thread->curframe; - psf->saved_state.psd_wakeup_time = thread->wakeup_time; - psf->saved_state.psd_wait_data = thread->data; - psf->saved_state.psd_state = thread->state; - psf->saved_state.psd_flags = thread->flags & - (PTHREAD_FLAGS_PRIVATE | PTHREAD_FLAGS_TRACE); - psf->saved_state.psd_interrupted = thread->interrupted; - psf->saved_state.psd_sigmask_seqno = thread->sigmask_seqno; - psf->saved_state.psd_signo = thread->signo; - psf->saved_state.psd_sig_defer_count = thread->sig_defer_count; -} - diff --git a/lib/libc_r/uthread/uthread_sigaction.c b/lib/libc_r/uthread/uthread_sigaction.c deleted file mode 100644 index 25df5fc..0000000 --- a/lib/libc_r/uthread/uthread_sigaction.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sigaction, sigaction); - -int -_sigaction(int sig, const struct sigaction * act, struct sigaction * oact) -{ - int ret = 0; - struct sigaction gact; - - /* Check if the signal number is out of range: */ - if (sig < 1 || sig > NSIG) { - /* Return an invalid argument: */ - errno = EINVAL; - ret = -1; - } else { - if (_thread_initial == NULL) - _thread_init(); - - /* - * Check if the existing signal action structure contents are - * to be returned: - */ - if (oact != NULL) { - /* Return the existing signal action contents: */ - oact->sa_handler = _thread_sigact[sig - 1].sa_handler; - oact->sa_mask = _thread_sigact[sig - 1].sa_mask; - oact->sa_flags = _thread_sigact[sig - 1].sa_flags; - } - - /* Check if a signal action was supplied: */ - if (act != NULL) { - /* Set the new signal handler: */ - _thread_sigact[sig - 1].sa_mask = act->sa_mask; - _thread_sigact[sig - 1].sa_flags = act->sa_flags; - _thread_sigact[sig - 1].sa_handler = act->sa_handler; - } - - /* - * Check if the kernel needs to be advised of a change - * in signal action: - */ - if (act != NULL && sig != _SCHED_SIGNAL && sig != SIGCHLD && - sig != SIGINFO) { - /* - * Ensure the signal handler cannot be interrupted - * by other signals. Always request the POSIX signal - * handler arguments. - */ - sigfillset(&gact.sa_mask); - gact.sa_flags = SA_SIGINFO | SA_RESTART; - - /* - * Check if the signal handler is being set to - * the default or ignore handlers: - */ - if (act->sa_handler == SIG_DFL || - act->sa_handler == SIG_IGN) - /* Specify the built in handler: */ - gact.sa_handler = act->sa_handler; - else - /* - * Specify the thread kernel signal - * handler: - */ - gact.sa_handler = (void (*) ()) _thread_sig_handler; - - /* Change the signal action in the kernel: */ - if (__sys_sigaction(sig,&gact,NULL) != 0) - ret = -1; - } - } - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_sigmask.c b/lib/libc_r/uthread/uthread_sigmask.c deleted file mode 100644 index 9cd5b92..0000000 --- a/lib/libc_r/uthread/uthread_sigmask.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/param.h> -#include <sys/types.h> -#include <sys/signalvar.h> -#include <errno.h> -#include <signal.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_pthread_sigmask, pthread_sigmask); - -int -_pthread_sigmask(int how, const sigset_t *set, sigset_t *oset) -{ - struct pthread *curthread = _get_curthread(); - sigset_t sigset; - int ret = 0; - - /* Check if the existing signal process mask is to be returned: */ - if (oset != NULL) { - /* Return the current mask: */ - *oset = curthread->sigmask; - } - /* Check if a new signal set was provided by the caller: */ - if (set != NULL) { - /* Process according to what to do: */ - switch (how) { - /* Block signals: */ - case SIG_BLOCK: - /* Add signals to the existing mask: */ - SIGSETOR(curthread->sigmask, *set); - break; - - /* Unblock signals: */ - case SIG_UNBLOCK: - /* Clear signals from the existing mask: */ - SIGSETNAND(curthread->sigmask, *set); - break; - - /* Set the signal process mask: */ - case SIG_SETMASK: - /* Set the new mask: */ - curthread->sigmask = *set; - break; - - /* Trap invalid actions: */ - default: - /* Return an invalid argument: */ - errno = EINVAL; - ret = -1; - break; - } - - /* Increment the sequence number: */ - curthread->sigmask_seqno++; - - /* - * Check if there are pending signals for the running - * thread or process that aren't blocked: - */ - sigset = curthread->sigpend; - SIGSETOR(sigset, _process_sigpending); - SIGSETNAND(sigset, curthread->sigmask); - if (SIGNOTEMPTY(sigset)) - /* - * Call the kernel scheduler which will safely - * install a signal frame for the running thread: - */ - _thread_kern_sched_sig(); - } - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_sigpending.c b/lib/libc_r/uthread/uthread_sigpending.c deleted file mode 100644 index eb9affd..0000000 --- a/lib/libc_r/uthread/uthread_sigpending.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright (c) 1999 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/param.h> -#include <sys/types.h> -#include <sys/signalvar.h> -#include <signal.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sigpending, sigpending); - -int -_sigpending(sigset_t *set) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - - /* Check for a null signal set pointer: */ - if (set == NULL) { - /* Return an invalid argument: */ - ret = EINVAL; - } - else { - *set = curthread->sigpend; - SIGSETOR(*set, _process_sigpending); - } - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_sigprocmask.c b/lib/libc_r/uthread/uthread_sigprocmask.c deleted file mode 100644 index 064f2ba..0000000 --- a/lib/libc_r/uthread/uthread_sigprocmask.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/param.h> -#include <sys/types.h> -#include <sys/signalvar.h> -#include <signal.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sigprocmask, sigprocmask); - -int -_sigprocmask(int how, const sigset_t *set, sigset_t *oset) -{ - return (pthread_sigmask(how, set, oset)); -} diff --git a/lib/libc_r/uthread/uthread_sigsuspend.c b/lib/libc_r/uthread/uthread_sigsuspend.c deleted file mode 100644 index cd63dfc..0000000 --- a/lib/libc_r/uthread/uthread_sigsuspend.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <sys/param.h> -#include <sys/signalvar.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__sigsuspend, sigsuspend); - -int -_sigsuspend(const sigset_t * set) -{ - struct pthread *curthread = _get_curthread(); - int ret = -1; - sigset_t oset, sigset; - - /* Check if a new signal set was provided by the caller: */ - if (set != NULL) { - /* Save the current signal mask: */ - oset = curthread->sigmask; - - /* Change the caller's mask: */ - curthread->sigmask = *set; - - /* - * Check if there are pending signals for the running - * thread or process that aren't blocked: - */ - sigset = curthread->sigpend; - SIGSETOR(sigset, _process_sigpending); - SIGSETNAND(sigset, curthread->sigmask); - if (SIGNOTEMPTY(sigset)) { - /* - * Call the kernel scheduler which will safely - * install a signal frame for the running thread: - */ - _thread_kern_sched_sig(); - } else { - /* Wait for a signal: */ - _thread_kern_sched_state(PS_SIGSUSPEND, - __FILE__, __LINE__); - } - - /* Always return an interrupted error: */ - errno = EINTR; - - /* Restore the signal mask: */ - curthread->sigmask = oset; - } else { - /* Return an invalid argument error: */ - errno = EINVAL; - } - - /* Return the completion status: */ - return (ret); -} - -int -__sigsuspend(const sigset_t * set) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = _sigsuspend(set); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_sigwait.c b/lib/libc_r/uthread/uthread_sigwait.c deleted file mode 100644 index afb9def..0000000 --- a/lib/libc_r/uthread/uthread_sigwait.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <sys/param.h> -#include <sys/signalvar.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sigwait, sigwait); - -int -_sigwait(const sigset_t * __restrict set, int * __restrict sig) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - int i; - sigset_t tempset, waitset; - struct sigaction act; - - _thread_enter_cancellation_point(); - /* - * Specify the thread kernel signal handler. - */ - act.sa_handler = (void (*) ()) _thread_sig_handler; - act.sa_flags = SA_SIGINFO | SA_RESTART; - /* Ensure the signal handler cannot be interrupted by other signals: */ - sigfillset(&act.sa_mask); - - /* - * Initialize the set of signals that will be waited on: - */ - waitset = *set; - - /* These signals can't be waited on. */ - sigdelset(&waitset, SIGKILL); - sigdelset(&waitset, SIGSTOP); - sigdelset(&waitset, _SCHED_SIGNAL); - sigdelset(&waitset, SIGCHLD); - sigdelset(&waitset, SIGINFO); - - /* Check to see if a pending signal is in the wait mask. */ - tempset = curthread->sigpend; - SIGSETOR(tempset, _process_sigpending); - SIGSETAND(tempset, waitset); - if (SIGNOTEMPTY(tempset)) { - /* Enter a loop to find a pending signal: */ - for (i = 1; i < NSIG; i++) { - if (sigismember (&tempset, i)) - break; - } - - /* Clear the pending signal: */ - if (sigismember(&curthread->sigpend,i)) - sigdelset(&curthread->sigpend,i); - else - sigdelset(&_process_sigpending,i); - - /* Return the signal number to the caller: */ - *sig = i; - - _thread_leave_cancellation_point(); - return (0); - } - - /* - * Access the _thread_dfl_count array under the protection of signal - * deferral. - */ - _thread_kern_sig_defer(); - - /* - * Enter a loop to find the signals that are SIG_DFL. For - * these signals we must install a dummy signal handler in - * order for the kernel to pass them in to us. POSIX says - * that the _application_ must explicitly install a dummy - * handler for signals that are SIG_IGN in order to sigwait - * on them. Note that SIG_IGN signals are left in the - * mask because a subsequent sigaction could enable an - * ignored signal. - */ - sigemptyset(&tempset); - for (i = 1; i < NSIG; i++) { - if (sigismember(&waitset, i) && - (_thread_sigact[i - 1].sa_handler == SIG_DFL)) { - _thread_dfl_count[i]++; - sigaddset(&tempset, i); - if (_thread_dfl_count[i] == 1) { - if (__sys_sigaction(i,&act,NULL) != 0) - ret = -1; - } - } - } - /* Done accessing _thread_dfl_count for now. */ - _thread_kern_sig_undefer(); - - if (ret == 0) { - /* - * Save the wait signal mask. The wait signal - * mask is independent of the threads signal mask - * and requires separate storage. - */ - curthread->data.sigwait = &waitset; - - /* Wait for a signal: */ - _thread_kern_sched_state(PS_SIGWAIT, __FILE__, __LINE__); - - /* Return the signal number to the caller: */ - *sig = curthread->signo; - - /* - * Probably unnecessary, but since it's in a union struct - * we don't know how it could be used in the future. - */ - curthread->data.sigwait = NULL; - } - - /* - * Access the _thread_dfl_count array under the protection of signal - * deferral. - */ - _thread_kern_sig_defer(); - - /* Restore the sigactions: */ - act.sa_handler = SIG_DFL; - for (i = 1; i < NSIG; i++) { - if (sigismember(&tempset, i)) { - _thread_dfl_count[i]--; - if ((_thread_sigact[i - 1].sa_handler == SIG_DFL) && - (_thread_dfl_count[i] == 0)) { - if (__sys_sigaction(i,&act,NULL) != 0) - ret = -1; - } - } - } - /* Done accessing _thread_dfl_count. */ - _thread_kern_sig_undefer(); - - _thread_leave_cancellation_point(); - - /* Return the completion status: */ - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_single_np.c b/lib/libc_r/uthread/uthread_single_np.c deleted file mode 100644 index a7b6dc1..0000000 --- a/lib/libc_r/uthread/uthread_single_np.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include <pthread_np.h> - -__weak_reference(_pthread_single_np, pthread_single_np); - -int _pthread_single_np() -{ - - /* Enter single-threaded (non-POSIX) scheduling mode: */ - pthread_suspend_all_np(); - /* - * XXX - Do we want to do this? - * __is_threaded = 0; - */ - return (0); -} diff --git a/lib/libc_r/uthread/uthread_sleep.c b/lib/libc_r/uthread/uthread_sleep.c deleted file mode 100644 index 9e09db7..0000000 --- a/lib/libc_r/uthread/uthread_sleep.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sleep, sleep); - -unsigned int -_sleep(unsigned int seconds) -{ - unsigned int ret; - - _thread_enter_cancellation_point(); - ret = __sleep(seconds); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_socket.c b/lib/libc_r/uthread/uthread_socket.c deleted file mode 100644 index c14d813..0000000 --- a/lib/libc_r/uthread/uthread_socket.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_socket, socket); - -int -_socket(int af, int type, int protocol) -{ - int fd; - - /* Create a socket: */ - if ((fd = __sys_socket(af, type, protocol)) < 0) { - /* Error creating socket. */ - - /* Initialise the entry in the file descriptor table: */ - } else if (_thread_fd_table_init(fd) != 0) { - __sys_close(fd); - fd = -1; - } - return (fd); -} diff --git a/lib/libc_r/uthread/uthread_socketpair.c b/lib/libc_r/uthread/uthread_socketpair.c deleted file mode 100644 index b76dd80..0000000 --- a/lib/libc_r/uthread/uthread_socketpair.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <unistd.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <fcntl.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_socketpair, socketpair); - -int -_socketpair(int af, int type, int protocol, int pair[2]) -{ - int ret; - if (!((ret = __sys_socketpair(af, type, protocol, pair)) < 0)) - if (_thread_fd_table_init(pair[0]) != 0 || - _thread_fd_table_init(pair[1]) != 0) { - __sys_close(pair[0]); - __sys_close(pair[1]); - ret = -1; - } - return (ret); -} diff --git a/lib/libc_r/uthread/uthread_spec.c b/lib/libc_r/uthread/uthread_spec.c deleted file mode 100644 index 0904428..0000000 --- a/lib/libc_r/uthread/uthread_spec.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <signal.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -struct pthread_key { - spinlock_t lock; - volatile int allocated; - volatile int count; - int seqno; - void (*destructor) (); -}; - -/* Static variables: */ -static struct pthread_key key_table[PTHREAD_KEYS_MAX]; - -__weak_reference(_pthread_key_create, pthread_key_create); -__weak_reference(_pthread_key_delete, pthread_key_delete); -__weak_reference(_pthread_getspecific, pthread_getspecific); -__weak_reference(_pthread_setspecific, pthread_setspecific); - - -int -_pthread_key_create(pthread_key_t * key, void (*destructor) (void *)) -{ - for ((*key) = 0; (*key) < PTHREAD_KEYS_MAX; (*key)++) { - /* Lock the key table entry: */ - _SPINLOCK(&key_table[*key].lock); - - if (key_table[(*key)].allocated == 0) { - key_table[(*key)].allocated = 1; - key_table[(*key)].destructor = destructor; - key_table[(*key)].seqno++; - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[*key].lock); - return (0); - } - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[*key].lock); - } - return (EAGAIN); -} - -int -_pthread_key_delete(pthread_key_t key) -{ - int ret = 0; - - if (key < PTHREAD_KEYS_MAX) { - /* Lock the key table entry: */ - _SPINLOCK(&key_table[key].lock); - - if (key_table[key].allocated) - key_table[key].allocated = 0; - else - ret = EINVAL; - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[key].lock); - } else - ret = EINVAL; - return (ret); -} - -void -_thread_cleanupspecific(void) -{ - struct pthread *curthread = _get_curthread(); - void *data = NULL; - int key; - int itr; - void (*destructor)( void *); - - for (itr = 0; itr < PTHREAD_DESTRUCTOR_ITERATIONS; itr++) { - for (key = 0; key < PTHREAD_KEYS_MAX; key++) { - if (curthread->specific_data_count > 0) { - /* Lock the key table entry: */ - _SPINLOCK(&key_table[key].lock); - destructor = NULL; - - if (key_table[key].allocated && - (curthread->specific[key].data != NULL)) { - if (curthread->specific[key].seqno == - key_table[key].seqno) { - data = (void *) curthread->specific[key].data; - destructor = key_table[key].destructor; - } - curthread->specific[key].data = NULL; - curthread->specific_data_count--; - } - - /* Unlock the key table entry: */ - _SPINUNLOCK(&key_table[key].lock); - - /* - * If there is a destructore, call it - * with the key table entry unlocked: - */ - if (destructor) - destructor(data); - } else { - free(curthread->specific); - curthread->specific = NULL; - return; - } - } - } - if (curthread->specific != NULL) { - free(curthread->specific); - curthread->specific = NULL; - } -} - -static inline struct pthread_specific_elem * -pthread_key_allocate_data(void) -{ - struct pthread_specific_elem *new_data; - - new_data = (struct pthread_specific_elem *) - malloc(sizeof(struct pthread_specific_elem) * PTHREAD_KEYS_MAX); - if (new_data != NULL) { - memset((void *) new_data, 0, - sizeof(struct pthread_specific_elem) * PTHREAD_KEYS_MAX); - } - return (new_data); -} - -int -_pthread_setspecific(pthread_key_t key, const void *value) -{ - struct pthread *pthread; - int ret = 0; - - /* Point to the running thread: */ - pthread = _get_curthread(); - - if ((pthread->specific) || - (pthread->specific = pthread_key_allocate_data())) { - if (key < PTHREAD_KEYS_MAX) { - if (key_table[key].allocated) { - if (pthread->specific[key].data == NULL) { - if (value != NULL) - pthread->specific_data_count++; - } else { - if (value == NULL) - pthread->specific_data_count--; - } - pthread->specific[key].data = value; - pthread->specific[key].seqno = - key_table[key].seqno; - ret = 0; - } else - ret = EINVAL; - } else - ret = EINVAL; - } else - ret = ENOMEM; - return (ret); -} - -void * -_pthread_getspecific(pthread_key_t key) -{ - struct pthread *pthread; - void *data; - - /* Point to the running thread: */ - pthread = _get_curthread(); - - /* Check if there is specific data: */ - if (pthread->specific != NULL && key < PTHREAD_KEYS_MAX) { - /* Check if this key has been used before: */ - if (key_table[key].allocated && - (pthread->specific[key].seqno == key_table[key].seqno)) { - /* Return the value: */ - data = (void *) pthread->specific[key].data; - } else { - /* - * This key has not been used before, so return NULL - * instead: - */ - data = NULL; - } - } else - /* No specific data has been created, so just return NULL: */ - data = NULL; - return (data); -} diff --git a/lib/libc_r/uthread/uthread_spinlock.c b/lib/libc_r/uthread/uthread_spinlock.c deleted file mode 100644 index 6721470..0000000 --- a/lib/libc_r/uthread/uthread_spinlock.c +++ /dev/null @@ -1,114 +0,0 @@ -/* - * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <sched.h> -#include <pthread.h> -#include <unistd.h> - -#include <libc_private.h> - -#include "pthread_private.h" - -void -_spinunlock(spinlock_t *lck) -{ - lck->access_lock = 0; -} - -/* - * Lock a location for the running thread. Yield to allow other - * threads to run if this thread is blocked because the lock is - * not available. Note that this function does not sleep. It - * assumes that the lock will be available very soon. - */ -void -_spinlock(spinlock_t *lck) -{ - struct pthread *curthread = _get_curthread(); - - /* - * Try to grab the lock and loop if another thread grabs - * it before we do. - */ - while(_atomic_lock(&lck->access_lock)) { - /* Block the thread until the lock. */ - curthread->data.spinlock = lck; - _thread_kern_sched_state(PS_SPINBLOCK, __FILE__, __LINE__); - } - - /* The running thread now owns the lock: */ - lck->lock_owner = (long) curthread; -} - -/* - * Lock a location for the running thread. Yield to allow other - * threads to run if this thread is blocked because the lock is - * not available. Note that this function does not sleep. It - * assumes that the lock will be available very soon. - * - * This function checks if the running thread has already locked the - * location, warns if this occurs and creates a thread dump before - * returning. - */ -void -_spinlock_debug(spinlock_t *lck, char *fname, int lineno) -{ - struct pthread *curthread = _get_curthread(); - int cnt = 0; - - /* - * Try to grab the lock and loop if another thread grabs - * it before we do. - */ - while(_atomic_lock(&lck->access_lock)) { - cnt++; - if (cnt > 100) { - char str[256]; - snprintf(str, sizeof(str), "%s - Warning: Thread %p attempted to lock %p from %s (%d) was left locked from %s (%d)\n", getprogname(), curthread, lck, fname, lineno, lck->fname, lck->lineno); - __sys_write(2,str,strlen(str)); - __sleep(1); - cnt = 0; - } - - /* Block the thread until the lock. */ - curthread->data.spinlock = lck; - _thread_kern_sched_state(PS_SPINBLOCK, fname, lineno); - } - - /* The running thread now owns the lock: */ - lck->lock_owner = (long) curthread; - lck->fname = fname; - lck->lineno = lineno; -} diff --git a/lib/libc_r/uthread/uthread_stack.c b/lib/libc_r/uthread/uthread_stack.c deleted file mode 100644 index 0b176ce..0000000 --- a/lib/libc_r/uthread/uthread_stack.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Copyright (c) 2001 Daniel Eischen <deischen@freebsd.org> - * Copyright (c) 2000-2001 Jason Evans <jasone@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include "namespace.h" -#include <sys/types.h> -#include <sys/mman.h> -#include <sys/param.h> -#include <sys/queue.h> -#include <stdlib.h> -#include <pthread.h> -#include "un-namespace.h" - -#include "pthread_private.h" - -/* Spare thread stack. */ -struct stack { - LIST_ENTRY(stack) qe; /* Stack queue linkage. */ - size_t stacksize; /* Stack size (rounded up). */ - size_t guardsize; /* Guard size. */ - void *stackaddr; /* Stack address. */ -}; - -/* - * Default sized (stack and guard) spare stack queue. Stacks are cached to - * avoid additional complexity managing mmap()ed stack regions. Spare stacks - * are used in LIFO order to increase cache locality. - */ -static LIST_HEAD(, stack) _dstackq = LIST_HEAD_INITIALIZER(_dstackq); - -/* - * Miscellaneous sized (non-default stack and/or guard) spare stack queue. - * Stacks are cached to avoid additional complexity managing mmap()ed stack - * regions. This list is unordered, since ordering on both stack size and guard - * size would be more trouble than it's worth. Stacks are allocated from this - * cache on a first size match basis. - */ -static LIST_HEAD(, stack) _mstackq = LIST_HEAD_INITIALIZER(_mstackq); - -/** - * Base address of the last stack allocated (including its red zone, if there is - * one). Stacks are allocated contiguously, starting beyond the top of the main - * stack. When a new stack is created, a red zone is typically created - * (actually, the red zone is simply left unmapped) above the top of the stack, - * such that the stack will not be able to grow all the way to the bottom of the - * next stack. This isn't fool-proof. It is possible for a stack to grow by a - * large amount, such that it grows into the next stack, and as long as the - * memory within the red zone is never accessed, nothing will prevent one thread - * stack from trouncing all over the next. - * - * low memory - * . . . . . . . . . . . . . . . . . . - * | | - * | stack 3 | start of 3rd thread stack - * +-----------------------------------+ - * | | - * | Red Zone (guard page) | red zone for 2nd thread - * | | - * +-----------------------------------+ - * | stack 2 - _pthread_stack_default | top of 2nd thread stack - * | | - * | | - * | | - * | | - * | stack 2 | - * +-----------------------------------+ <-- start of 2nd thread stack - * | | - * | Red Zone | red zone for 1st thread - * | | - * +-----------------------------------+ - * | stack 1 - _pthread_stack_default | top of 1st thread stack - * | | - * | | - * | | - * | | - * | stack 1 | - * +-----------------------------------+ <-- start of 1st thread stack - * | | (initial value of last_stack) - * | Red Zone | - * | | red zone for main thread - * +-----------------------------------+ - * | USRSTACK - _pthread_stack_initial | top of main thread stack - * | | ^ - * | | | - * | | | - * | | | stack growth - * | | - * +-----------------------------------+ <-- start of main thread stack - * (USRSTACK) - * high memory - * - */ -static void * last_stack; - -void * -_thread_stack_alloc(size_t stacksize, size_t guardsize) -{ - void *stack = NULL; - struct stack *spare_stack; - size_t stack_size; - - /* - * Round up stack size to nearest multiple of _pthread_page_size, - * so that mmap() * will work. If the stack size is not an even - * multiple, we end up initializing things such that there is unused - * space above the beginning of the stack, so the stack sits snugly - * against its guard. - */ - if (stacksize % _pthread_page_size != 0) - stack_size = ((stacksize / _pthread_page_size) + 1) * - _pthread_page_size; - else - stack_size = stacksize; - - /* - * If the stack and guard sizes are default, try to allocate a stack - * from the default-size stack cache: - */ - if (stack_size == _pthread_stack_default && - guardsize == _pthread_guard_default) { - /* - * Use the garbage collector mutex for synchronization of the - * spare stack list. - */ - if (_pthread_mutex_lock(&_gc_mutex) != 0) - PANIC("Cannot lock gc mutex"); - - if ((spare_stack = LIST_FIRST(&_dstackq)) != NULL) { - /* Use the spare stack. */ - LIST_REMOVE(spare_stack, qe); - stack = spare_stack->stackaddr; - } - - /* Unlock the garbage collector mutex. */ - if (_pthread_mutex_unlock(&_gc_mutex) != 0) - PANIC("Cannot unlock gc mutex"); - } - /* - * The user specified a non-default stack and/or guard size, so try to - * allocate a stack from the non-default size stack cache, using the - * rounded up stack size (stack_size) in the search: - */ - else { - /* - * Use the garbage collector mutex for synchronization of the - * spare stack list. - */ - if (_pthread_mutex_lock(&_gc_mutex) != 0) - PANIC("Cannot lock gc mutex"); - - LIST_FOREACH(spare_stack, &_mstackq, qe) { - if (spare_stack->stacksize == stack_size && - spare_stack->guardsize == guardsize) { - LIST_REMOVE(spare_stack, qe); - stack = spare_stack->stackaddr; - break; - } - } - - /* Unlock the garbage collector mutex. */ - if (_pthread_mutex_unlock(&_gc_mutex) != 0) - PANIC("Cannot unlock gc mutex"); - } - - /* Check if a stack was not allocated from a stack cache: */ - if (stack == NULL) { - - if (last_stack == NULL) - last_stack = _usrstack - _pthread_stack_initial - - _pthread_guard_default; - - /* Allocate a new stack. */ - stack = last_stack - stack_size; - - /* - * Even if stack allocation fails, we don't want to try to use - * this location again, so unconditionally decrement - * last_stack. Under normal operating conditions, the most - * likely reason for an mmap() error is a stack overflow of the - * adjacent thread stack. - */ - last_stack -= (stack_size + guardsize); - - /* Stack: */ - if (mmap(stack, stack_size, PROT_READ | PROT_WRITE, MAP_STACK, - -1, 0) == MAP_FAILED) - stack = NULL; - } - - return (stack); -} - -/* This function must be called with _gc_mutex held. */ -void -_thread_stack_free(void *stack, size_t stacksize, size_t guardsize) -{ - struct stack *spare_stack; - - spare_stack = (stack + stacksize - sizeof(struct stack)); - /* Round stacksize up to nearest multiple of _pthread_page_size. */ - if (stacksize % _pthread_page_size != 0) { - spare_stack->stacksize = - ((stacksize / _pthread_page_size) + 1) * - _pthread_page_size; - } else - spare_stack->stacksize = stacksize; - spare_stack->guardsize = guardsize; - spare_stack->stackaddr = stack; - - if (spare_stack->stacksize == _pthread_stack_default && - spare_stack->guardsize == _pthread_guard_default) { - /* Default stack/guard size. */ - LIST_INSERT_HEAD(&_dstackq, spare_stack, qe); - } else { - /* Non-default stack/guard size. */ - LIST_INSERT_HEAD(&_mstackq, spare_stack, qe); - } -} diff --git a/lib/libc_r/uthread/uthread_suspend_np.c b/lib/libc_r/uthread/uthread_suspend_np.c deleted file mode 100644 index 5892031..0000000 --- a/lib/libc_r/uthread/uthread_suspend_np.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include "pthread_private.h" - -static void suspend_common(struct pthread *thread); - -__weak_reference(_pthread_suspend_np, pthread_suspend_np); -__weak_reference(_pthread_suspend_all_np, pthread_suspend_all_np); - -/* Suspend a thread: */ -int -_pthread_suspend_np(pthread_t thread) -{ - int ret; - - /* Suspending the current thread doesn't make sense. */ - if (thread == _get_curthread()) - ret = EDEADLK; - - /* Find the thread in the list of active threads: */ - else if ((ret = _find_thread(thread)) == 0) { - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - suspend_common(thread); - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); - } - return (ret); -} - -void -_pthread_suspend_all_np(void) -{ - struct pthread *curthread = _get_curthread(); - struct pthread *thread; - - /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: - */ - _thread_kern_sig_defer(); - - TAILQ_FOREACH(thread, &_thread_list, tle) { - if (thread != curthread) - suspend_common(thread); - } - - /* - * Undefer and handle pending signals, yielding if - * necessary: - */ - _thread_kern_sig_undefer(); -} - -void -suspend_common(struct pthread *thread) -{ - thread->flags |= PTHREAD_FLAGS_SUSPENDED; - if (thread->flags & PTHREAD_FLAGS_IN_PRIOQ) { - PTHREAD_PRIOQ_REMOVE(thread); - PTHREAD_SET_STATE(thread, PS_SUSPENDED); - } -} diff --git a/lib/libc_r/uthread/uthread_switch_np.c b/lib/libc_r/uthread/uthread_switch_np.c deleted file mode 100644 index f24d99f..0000000 --- a/lib/libc_r/uthread/uthread_switch_np.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Daniel Eischen. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <errno.h> -#include <pthread.h> -#include <pthread_np.h> -#include "pthread_private.h" - - -__weak_reference(_pthread_switch_add_np, pthread_switch_add_np); -__weak_reference(_pthread_switch_delete_np, pthread_switch_delete_np); - -int -_pthread_switch_add_np(pthread_switch_routine_t routine) -{ - int ret = 0; - - if (routine == NULL) - /* Return an invalid argument error: */ - ret = EINVAL; - else - /* Shouldn't need a lock to protect this assigment. */ - _sched_switch_hook = routine; - - return(ret); -} - -int -_pthread_switch_delete_np(pthread_switch_routine_t routine) -{ - int ret = 0; - - if (routine != _sched_switch_hook) - /* Return an invalid argument error: */ - ret = EINVAL; - else - /* Shouldn't need a lock to protect this assigment. */ - _sched_switch_hook = NULL; - - return(ret); -} diff --git a/lib/libc_r/uthread/uthread_system.c b/lib/libc_r/uthread/uthread_system.c deleted file mode 100644 index d63969b..0000000 --- a/lib/libc_r/uthread/uthread_system.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <stdlib.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_system, system); - -int -_system(const char *string) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = __system(string); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_tcdrain.c b/lib/libc_r/uthread/uthread_tcdrain.c deleted file mode 100644 index 272bdf6..0000000 --- a/lib/libc_r/uthread/uthread_tcdrain.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <termios.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_tcdrain, tcdrain); - -int -_tcdrain(int fd) -{ - int ret; - - _thread_enter_cancellation_point(); - ret = __tcdrain(fd); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_vfork.c b/lib/libc_r/uthread/uthread_vfork.c deleted file mode 100644 index dbefc65..0000000 --- a/lib/libc_r/uthread/uthread_vfork.c +++ /dev/null @@ -1,12 +0,0 @@ -/* - * $FreeBSD$ - */ -#include <unistd.h> - -__weak_reference(_vfork, vfork); - -int -_vfork(void) -{ - return (fork()); -} diff --git a/lib/libc_r/uthread/uthread_wait.c b/lib/libc_r/uthread/uthread_wait.c deleted file mode 100644 index e61138b..0000000 --- a/lib/libc_r/uthread/uthread_wait.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_wait, wait); - -pid_t -_wait(int *istat) -{ - pid_t ret; - - _thread_enter_cancellation_point(); - ret = __wait(istat); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_wait4.c b/lib/libc_r/uthread/uthread_wait4.c deleted file mode 100644 index 2c8fc56..0000000 --- a/lib/libc_r/uthread/uthread_wait4.c +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <sys/types.h> - -#include <errno.h> -#include <sys/wait.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__wait4, wait4); - -pid_t -_wait4(pid_t pid, int *istat, int options, struct rusage * rusage) -{ - struct pthread *curthread = _get_curthread(); - pid_t ret; - - _thread_kern_sig_defer(); - - /* Perform a non-blocking wait4 syscall: */ - while ((ret = __sys_wait4(pid, istat, options | WNOHANG, rusage)) == 0 && (options & WNOHANG) == 0) { - /* Reset the interrupted operation flag: */ - curthread->interrupted = 0; - - /* Schedule the next thread while this one waits: */ - _thread_kern_sched_state(PS_WAIT_WAIT, __FILE__, __LINE__); - - /* Check if this call was interrupted by a signal: */ - if (curthread->interrupted) { - errno = EINTR; - ret = -1; - break; - } - } - - _thread_kern_sig_undefer(); - - return (ret); -} - -pid_t -__wait4(pid_t pid, int *istat, int options, struct rusage *rusage) -{ - pid_t ret; - - _thread_enter_cancellation_point(); - ret = _wait4(pid, istat, options, rusage); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_waitpid.c b/lib/libc_r/uthread/uthread_waitpid.c deleted file mode 100644 index fcbbc9f..0000000 --- a/lib/libc_r/uthread/uthread_waitpid.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice(s), this list of conditions and the following disclaimer as - * the first lines of this file unmodified other than the possible - * addition of one or more copyright notices. - * 2. Redistributions in binary form must reproduce the above copyright - * notice(s), this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE - * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/wait.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_waitpid, waitpid); - -pid_t -_waitpid(pid_t wpid, int *status, int options) -{ - pid_t ret; - - _thread_enter_cancellation_point(); - ret = __waitpid(wpid, status, options); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_write.c b/lib/libc_r/uthread/uthread_write.c deleted file mode 100644 index d9e6c84..0000000 --- a/lib/libc_r/uthread/uthread_write.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <sys/types.h> -#include <sys/fcntl.h> -#include <sys/uio.h> -#include <errno.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__write, write); - -ssize_t -_write(int fd, const void *buf, size_t nbytes) -{ - struct pthread *curthread = _get_curthread(); - int blocking; - int type; - ssize_t n; - ssize_t num = 0; - ssize_t ret; - - /* POSIX says to do just this: */ - if (nbytes == 0) - return (0); - - /* Lock the file descriptor for write: */ - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - /* Get the read/write mode type: */ - type = _thread_fd_getflags(fd) & O_ACCMODE; - - /* Check if the file is not open for write: */ - if (type != O_WRONLY && type != O_RDWR) { - /* File is not open for write: */ - errno = EBADF; - _FD_UNLOCK(fd, FD_WRITE); - return (-1); - } - - /* Check if file operations are to block */ - blocking = ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0); - - /* - * Loop while no error occurs and until the expected number - * of bytes are written if performing a blocking write: - */ - while (ret == 0) { - /* Perform a non-blocking write syscall: */ - n = __sys_write(fd, (const char *)buf + num, - nbytes - num); - - /* Check if one or more bytes were written: */ - if (n > 0) - /* - * Keep a count of the number of bytes - * written: - */ - num += n; - - /* - * If performing a blocking write, check if the - * write would have blocked or if some bytes - * were written but there are still more to - * write: - */ - if (blocking && ((n < 0 && (errno == EWOULDBLOCK || - errno == EAGAIN)) || (n > 0 && num < nbytes))) { - curthread->data.fd.fd = fd; - _thread_kern_set_timeout(NULL); - - /* Reset the interrupted operation flag: */ - curthread->interrupted = 0; - - _thread_kern_sched_state(PS_FDW_WAIT, - __FILE__, __LINE__); - - /* - * Check if the operation was - * interrupted by a signal - */ - if (curthread->interrupted) { - if (num > 0) { - /* Return partial success: */ - ret = num; - } else { - /* Return an error: */ - errno = EINTR; - ret = -1; - } - } - - /* - * If performing a non-blocking write, - * just return whatever the write syscall did: - */ - } else if (!blocking) { - /* A non-blocking call might return zero: */ - ret = n; - break; - - /* - * If there was an error, return partial success - * (if any bytes were written) or else the error: - */ - } else if (n <= 0) { - if (num > 0) - ret = num; - else - ret = n; - if (n == 0) - break; - - /* Check if the write has completed: */ - } else if (num >= nbytes) - /* Return the number of bytes written: */ - ret = num; - } - _FD_UNLOCK(fd, FD_WRITE); - } - return (ret); -} - -ssize_t -__write(int fd, const void *buf, size_t nbytes) -{ - ssize_t ret; - - _thread_enter_cancellation_point(); - ret = _write(fd, buf, nbytes); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_writev.c b/lib/libc_r/uthread/uthread_writev.c deleted file mode 100644 index ca57607..0000000 --- a/lib/libc_r/uthread/uthread_writev.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ -#include <sys/types.h> -#include <sys/fcntl.h> -#include <sys/uio.h> -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(__writev, writev); - -ssize_t -_writev(int fd, const struct iovec * iov, int iovcnt) -{ - struct pthread *curthread = _get_curthread(); - int blocking; - int idx = 0; - int type; - ssize_t cnt; - ssize_t n; - ssize_t num = 0; - ssize_t ret; - struct iovec liov[20]; - struct iovec *p_iov = liov; - - /* Check if the array size exceeds to compiled in size: */ - if (iovcnt > (sizeof(liov) / sizeof(struct iovec))) { - /* Allocate memory for the local array: */ - if ((p_iov = (struct iovec *) - malloc(iovcnt * sizeof(struct iovec))) == NULL) { - /* Insufficient memory: */ - errno = ENOMEM; - return (-1); - } - } - - /* Copy the caller's array so that it can be modified locally: */ - memcpy(p_iov,iov,iovcnt * sizeof(struct iovec)); - - /* Lock the file descriptor for write: */ - if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { - /* Get the read/write mode type: */ - type = _thread_fd_getflags(fd) & O_ACCMODE; - - /* Check if the file is not open for write: */ - if (type != O_WRONLY && type != O_RDWR) { - /* File is not open for write: */ - errno = EBADF; - _FD_UNLOCK(fd, FD_WRITE); - return (-1); - } - - /* Check if file operations are to block */ - blocking = ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0); - - /* - * Loop while no error occurs and until the expected number - * of bytes are written if performing a blocking write: - */ - while (ret == 0) { - /* Perform a non-blocking write syscall: */ - n = __sys_writev(fd, &p_iov[idx], iovcnt - idx); - - /* Check if one or more bytes were written: */ - if (n > 0) { - /* - * Keep a count of the number of bytes - * written: - */ - num += n; - - /* - * Enter a loop to check if a short write - * occurred and move the index to the - * array entry where the short write - * ended: - */ - cnt = n; - while (cnt > 0 && idx < iovcnt) { - /* - * If the residual count exceeds - * the size of this vector, then - * it was completely written: - */ - if (cnt >= p_iov[idx].iov_len) - /* - * Decrement the residual - * count and increment the - * index to the next array - * entry: - */ - cnt -= p_iov[idx++].iov_len; - else { - /* - * This entry was only - * partially written, so - * adjust it's length - * and base pointer ready - * for the next write: - */ - p_iov[idx].iov_len -= cnt; - p_iov[idx].iov_base = - (char *)p_iov[idx].iov_base - + cnt; - cnt = 0; - } - } - } else if (n == 0) { - /* - * Avoid an infinite loop if the last iov_len is - * 0. - */ - while (idx < iovcnt && p_iov[idx].iov_len == 0) - idx++; - - if (idx == iovcnt) { - ret = num; - break; - } - } - - /* - * If performing a blocking write, check if the - * write would have blocked or if some bytes - * were written but there are still more to - * write: - */ - if (blocking && ((n < 0 && (errno == EWOULDBLOCK || - errno == EAGAIN)) || (n >= 0 && idx < iovcnt))) { - curthread->data.fd.fd = fd; - _thread_kern_set_timeout(NULL); - - /* Reset the interrupted operation flag: */ - curthread->interrupted = 0; - - _thread_kern_sched_state(PS_FDW_WAIT, - __FILE__, __LINE__); - - /* - * Check if the operation was - * interrupted by a signal - */ - if (curthread->interrupted) { - if (num > 0) { - /* Return partial success: */ - ret = num; - } else { - /* Return an error: */ - errno = EINTR; - ret = -1; - } - } - - /* - * If performing a non-blocking write, - * just return whatever the write syscall did: - */ - } else if (!blocking) { - /* A non-blocking call might return zero: */ - ret = n; - break; - - /* - * If there was an error, return partial success - * (if any bytes were written) or else the error: - */ - } else if (n < 0) { - if (num > 0) - ret = num; - else - ret = n; - - /* Check if the write has completed: */ - } else if (idx == iovcnt) - /* Return the number of bytes written: */ - ret = num; - } - _FD_UNLOCK(fd, FD_RDWR); - } - - /* If memory was allocated for the array, free it: */ - if (p_iov != liov) - free(p_iov); - - return (ret); -} - -ssize_t -__writev(int fd, const struct iovec *iov, int iovcnt) -{ - ssize_t ret; - - _thread_enter_cancellation_point(); - ret = _writev(fd, iov, iovcnt); - _thread_leave_cancellation_point(); - - return ret; -} diff --git a/lib/libc_r/uthread/uthread_yield.c b/lib/libc_r/uthread/uthread_yield.c deleted file mode 100644 index 414ff05..0000000 --- a/lib/libc_r/uthread/uthread_yield.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -#include <pthread.h> -#include "pthread_private.h" - -__weak_reference(_sched_yield, sched_yield); -__weak_reference(_pthread_yield, pthread_yield); - -int -_sched_yield(void) -{ - struct pthread *curthread = _get_curthread(); - - /* Reset the accumulated time slice value for the current thread: */ - curthread->slice_usec = -1; - - /* Schedule the next thread: */ - _thread_kern_sched(NULL); - - /* Always return no error. */ - return(0); -} - -/* Draft 4 yield */ -void -_pthread_yield(void) -{ - struct pthread *curthread = _get_curthread(); - - /* Reset the accumulated time slice value for the current thread: */ - curthread->slice_usec = -1; - - /* Schedule the next thread: */ - _thread_kern_sched(NULL); -} |