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/* sem_timedwait -- wait on a semaphore with timeout.
Copyright (C) 2003-2019 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);
}
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