diff options
Diffstat (limited to 'lib/libpthread/thread/thr_sigpending.c')
| -rw-r--r-- | lib/libpthread/thread/thr_sigpending.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/libpthread/thread/thr_sigpending.c b/lib/libpthread/thread/thr_sigpending.c new file mode 100644 index 0000000..7a0a76d --- /dev/null +++ b/lib/libpthread/thread/thr_sigpending.c @@ -0,0 +1,73 @@ +/* + * 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 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 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 "thr_private.h" + +__weak_reference(_sigpending, sigpending); + +int +_sigpending(sigset_t *set) +{ + struct pthread *curthread = _get_curthread(); + kse_critical_t crit; + sigset_t sigset; + int ret = 0; + + /* Check for a null signal set pointer: */ + if (set == NULL) { + /* Return an invalid argument: */ + ret = EINVAL; + } + else { + if (curthread->attr.flags & PTHREAD_SCOPE_SYSTEM) + return (__sys_sigpending(set)); + + crit = _kse_critical_enter(); + KSE_SCHED_LOCK(curthread->kse, curthread->kseg); + sigset = curthread->sigpend; + KSE_SCHED_UNLOCK(curthread->kse, curthread->kseg); + KSE_LOCK_ACQUIRE(curthread->kse, &_thread_signal_lock); + SIGSETOR(sigset, _thr_proc_sigpending); + KSE_LOCK_RELEASE(curthread->kse, &_thread_signal_lock); + _kse_critical_leave(crit); + *set = sigset; + } + /* Return the completion status: */ + return (ret); +} |
