diff options
Diffstat (limited to 'lib/libkse/thread/thr_sigwait.c')
| -rw-r--r-- | lib/libkse/thread/thr_sigwait.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/lib/libkse/thread/thr_sigwait.c b/lib/libkse/thread/thr_sigwait.c deleted file mode 100644 index a9cdafa..0000000 --- a/lib/libkse/thread/thr_sigwait.c +++ /dev/null @@ -1,210 +0,0 @@ -//depot/projects/kse/lib/libpthread/thread/thr_sigwait.c#1 - branch change 15154 (text+ko) -/* - * 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 "namespace.h" -#include <signal.h> -#include <sys/param.h> -#include <sys/signalvar.h> -#include <errno.h> -#include <pthread.h> -#include "un-namespace.h" -#include "thr_private.h" - -int __sigtimedwait(const sigset_t *set, siginfo_t *info, - const struct timespec *timeout); -int __sigwaitinfo(const sigset_t *set, siginfo_t *info); -int __sigwait(const sigset_t *set, int *sig); -int _sigtimedwait(const sigset_t *set, siginfo_t *info, - const struct timespec *timeout); -int _sigwaitinfo(const sigset_t *set, siginfo_t *info); -int _sigwait(const sigset_t *set, int *sig); - -__weak_reference(__sigwait, sigwait); -__weak_reference(__sigtimedwait, sigtimedwait); -__weak_reference(__sigwaitinfo, sigwaitinfo); - -static int -lib_sigtimedwait(const sigset_t *set, siginfo_t *info, - const struct timespec *timeout) -{ - struct pthread *curthread = _get_curthread(); - int ret = 0; - int i; - struct sigwait_data waitdata; - sigset_t waitset; - kse_critical_t crit; - siginfo_t siginfo; - - if (curthread->attr.flags & PTHREAD_SCOPE_SYSTEM) { - if (info == NULL) - info = &siginfo; - return (__sys_sigtimedwait(set, info, timeout)); - } - - /* - * 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); - - /* - * 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. - */ - - crit = _kse_critical_enter(); - KSE_SCHED_LOCK(curthread->kse, curthread->kseg); - for (i = 1; i <= _SIG_MAXSIG; ++i) { - if (SIGISMEMBER(waitset, i) && - SIGISMEMBER(curthread->sigpend, i)) { - SIGDELSET(curthread->sigpend, i); - siginfo = curthread->siginfo[i - 1]; - KSE_SCHED_UNLOCK(curthread->kse, - curthread->kseg); - _kse_critical_leave(crit); - ret = i; - goto OUT; - } - } - curthread->timeout = 0; - curthread->interrupted = 0; - _thr_set_timeout(timeout); - /* Wait for a signal: */ - siginfo.si_signo = 0; - waitdata.waitset = &waitset; - waitdata.siginfo = &siginfo; - curthread->data.sigwait = &waitdata; - THR_SET_STATE(curthread, PS_SIGWAIT); - _thr_sched_switch_unlocked(curthread); - /* - * Return the signal number to the caller: - */ - if (siginfo.si_signo > 0) { - ret = siginfo.si_signo; - } else { - if (curthread->interrupted) - errno = EINTR; - else if (curthread->timeout) - errno = EAGAIN; - ret = -1; - } - curthread->timeout = 0; - curthread->interrupted = 0; - /* - * 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; - -OUT: - if (ret > 0 && info != NULL) - *info = siginfo; - - return (ret); -} - -int -__sigtimedwait(const sigset_t *set, siginfo_t *info, - const struct timespec * timeout) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - _thr_cancel_enter(curthread); - ret = lib_sigtimedwait(set, info, timeout); - _thr_cancel_leave(curthread, 1); - return (ret); -} - -int _sigtimedwait(const sigset_t *set, siginfo_t *info, - const struct timespec * timeout) -{ - return lib_sigtimedwait(set, info, timeout); -} - -int -__sigwaitinfo(const sigset_t *set, siginfo_t *info) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - _thr_cancel_enter(curthread); - ret = lib_sigtimedwait(set, info, NULL); - _thr_cancel_leave(curthread, 1); - return (ret); -} - -int -_sigwaitinfo(const sigset_t *set, siginfo_t *info) -{ - return lib_sigtimedwait(set, info, NULL); -} - -int -__sigwait(const sigset_t *set, int *sig) -{ - struct pthread *curthread = _get_curthread(); - int ret; - - _thr_cancel_enter(curthread); - ret = lib_sigtimedwait(set, NULL, NULL); - if (ret > 0) { - *sig = ret; - ret = 0; - } else { - ret = errno; - } - _thr_cancel_leave(curthread, 1); - return (ret); -} - -int -_sigwait(const sigset_t *set, int *sig) -{ - int ret; - - ret = lib_sigtimedwait(set, NULL, NULL); - if (ret > 0) { - *sig = ret; - ret = 0; - } else { - ret = errno; - } - return (ret); -} - |
