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authorobrien <obrien@FreeBSD.org>2007-10-09 14:16:39 +0000
committerobrien <obrien@FreeBSD.org>2007-10-09 14:16:39 +0000
commit9724a293f7f7df7e791661a0a5159fe124c80f7d (patch)
treed0edefa18994441e9444e6531011f2a5d5cf29b6 /lib/libpthread/thread/thr_sigwait.c
parenteb3f6a9e7473ee9d6e8016ce8d9cc1e8286bdd98 (diff)
downloadFreeBSD-src-9724a293f7f7df7e791661a0a5159fe124c80f7d.zip
FreeBSD-src-9724a293f7f7df7e791661a0a5159fe124c80f7d.tar.gz
Repo copy libpthreads to libkse.
This introduces the WITHOUT_LIBKSE nob, and changes WITHOUT_LIBPTHREADS to mean with neither threading libs. Approved by: re(kensmith)
Diffstat (limited to 'lib/libpthread/thread/thr_sigwait.c')
-rw-r--r--lib/libpthread/thread/thr_sigwait.c209
1 files changed, 0 insertions, 209 deletions
diff --git a/lib/libpthread/thread/thr_sigwait.c b/lib/libpthread/thread/thr_sigwait.c
deleted file mode 100644
index 532251c..0000000
--- a/lib/libpthread/thread/thr_sigwait.c
+++ /dev/null
@@ -1,209 +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 <signal.h>
-#include <sys/param.h>
-#include <sys/signalvar.h>
-#include <errno.h>
-#include <pthread.h>
-#include "thr_private.h"
-
-LT10_COMPAT_PRIVATE(__sigwait);
-LT10_COMPAT_PRIVATE(_sigwait);
-LT10_COMPAT_DEFAULT(sigwait);
-LT10_COMPAT_PRIVATE(__sigtimedwait);
-LT10_COMPAT_PRIVATE(_sigtimedwait);
-LT10_COMPAT_DEFAULT(sigtimedwait);
-LT10_COMPAT_PRIVATE(__sigwaitinfo);
-LT10_COMPAT_PRIVATE(_sigwaitinfo);
-LT10_COMPAT_DEFAULT(sigwaitinfo);
-
-__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((sigset_t *)set, info,
- (struct timespec *)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);
-}
-
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