diff options
Diffstat (limited to 'lib/libpthread/thread/thr_exit.c')
| -rw-r--r-- | lib/libpthread/thread/thr_exit.c | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/lib/libpthread/thread/thr_exit.c b/lib/libpthread/thread/thr_exit.c deleted file mode 100644 index 15bcfa3..0000000 --- a/lib/libpthread/thread/thr_exit.c +++ /dev/null @@ -1,205 +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. 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 REGENTS 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 <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <string.h> -#ifdef _THREAD_SAFE -#include <pthread.h> -#include "pthread_private.h" - -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_VIRTUAL, &itimer, NULL); - - /* Close the pthread kernel pipe: */ - _thread_sys_close(_thread_kern_pipe[0]); - _thread_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_table[i]->flags & O_NONBLOCK)) { - /* Get the current flags: */ - flags = _thread_sys_fcntl(i, F_GETFL, NULL); - /* Clear the nonblocking file descriptor flag: */ - _thread_sys_fcntl(i, F_SETFL, flags & ~O_NONBLOCK); - } - } - - /* Call the _exit syscall: */ - _thread_sys__exit(status); -} - -void -_thread_exit(char *fname, int lineno, char *string) -{ - char s[256]; - - /* Prepare an error message string: */ - strcpy(s, "Fatal error '"); - strcat(s, string); - strcat(s, "' at line ? "); - strcat(s, "in file "); - strcat(s, fname); - strcat(s, " (errno = ?"); - strcat(s, ")\n"); - - /* Write the string to the standard error file descriptor: */ - _thread_sys_write(2, s, strlen(s)); - - /* Force this process to exit: */ - _exit(1); -} - -void -pthread_exit(void *status) -{ - int sig; - long l; - pthread_t pthread; - - /* Block signals: */ - _thread_kern_sig_block(NULL); - - /* Save the return value: */ - _thread_run->ret = status; - - while (_thread_run->cleanup != NULL) { - pthread_cleanup_pop(1); - } - - if (_thread_run->attr.cleanup_attr != NULL) { - _thread_run->attr.cleanup_attr(_thread_run->attr.arg_attr); - } - /* Check if there is thread specific data: */ - if (_thread_run->specific_data != NULL) { - /* Run the thread-specific data destructors: */ - _thread_cleanupspecific(); - } - /* Check if there are any threads joined to this one: */ - while ((pthread = _thread_queue_deq(&(_thread_run->join_queue))) != NULL) { - /* Wake the joined thread and let it detach this thread: */ - PTHREAD_NEW_STATE(pthread,PS_RUNNING); - } - - /* Check if the running thread is at the head of the linked list: */ - if (_thread_link_list == _thread_run) { - /* There is no previous thread: */ - _thread_link_list = _thread_run->nxt; - } else { - /* Point to the first thread in the list: */ - pthread = _thread_link_list; - - /* - * Enter a loop to find the thread in the linked list before - * the running thread: - */ - while (pthread != NULL && pthread->nxt != _thread_run) { - /* Point to the next thread: */ - pthread = pthread->nxt; - } - - /* Check that a previous thread was found: */ - if (pthread != NULL) { - /* - * Point the previous thread to the one after the - * running thread: - */ - pthread->nxt = _thread_run->nxt; - } - } - - /* Check if this is a signal handler thread: */ - if (_thread_run->parent_thread != NULL) { - /* - * Enter a loop to search for other threads with the same - * parent: - */ - for (pthread = _thread_link_list; pthread != NULL; pthread = pthread->nxt) { - /* Compare the parent thread pointers: */ - if (pthread->parent_thread == _thread_run->parent_thread) { - /* - * The parent thread is waiting on at least - * one other signal handler. Exit the loop - * now that this is known. - */ - break; - } - } - - /* - * Check if the parent is not waiting on any other signal - * handler threads and if it hasn't died in the meantime: - */ - if (pthread == NULL && _thread_run->parent_thread->state != PS_DEAD) { - /* Allow the parent thread to run again: */ - PTHREAD_NEW_STATE(_thread_run->parent_thread,PS_RUNNING); - } - /* Get the signal number: */ - l = (long) _thread_run->arg; - sig = (int) l; - - /* Unblock the signal from the parent thread: */ - sigdelset(&_thread_run->parent_thread->sigmask, sig); - } - /* - * This thread will never run again. Add it to the list of dead - * threads: - */ - _thread_run->nxt = _thread_dead; - _thread_dead = _thread_run; - - /* - * The running thread is no longer in the thread link list so it will - * now die: - */ - _thread_kern_sched_state(PS_DEAD, __FILE__, __LINE__); - - /* This point should not be reached. */ - PANIC("Dead thread has resumed"); -} -#endif |
