1/* sem_timedwait -- wait on a semaphore with timeout.
2 Copyright (C) 2003-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20#include "sem_waitcommon.c"
21
22/* This is in a separate file because because sem_timedwait is only provided
23 if __USE_XOPEN2K is defined. */
24int
25sem_timedwait (sem_t *sem, const struct timespec *abstime)
26{
27 if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
28 {
29 __set_errno (EINVAL);
30 return -1;
31 }
32
33 /* Check sem_wait.c for a more detailed explanation why it is required. */
34 __pthread_testcancel ();
35
36 if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
37 return 0;
38 else
39 return __new_sem_wait_slow((struct new_sem *) sem, abstime);
40}
41