mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 21:20:18 +00:00
43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/* sem_timedwait -- wait on a semaphore with timeout.
|
|
Copyright (C) 2003-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <time.h>
|
|
#include "sem_waitcommon.c"
|
|
|
|
/* This is in a separate file because because sem_timedwait is only provided
|
|
if __USE_XOPEN2K is defined. */
|
|
int
|
|
sem_timedwait (sem_t *sem, const struct timespec *abstime)
|
|
{
|
|
if (! valid_nanoseconds (abstime->tv_nsec))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
/* Check sem_wait.c for a more detailed explanation why it is required. */
|
|
__pthread_testcancel ();
|
|
|
|
if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
|
|
return 0;
|
|
else
|
|
return __new_sem_wait_slow ((struct new_sem *) sem,
|
|
CLOCK_REALTIME, abstime);
|
|
}
|