1/* sem_timedwait -- wait on a semaphore with timeout.
2 Copyright (C) 2003-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <time.h>
20#include "semaphoreP.h"
21#include "sem_waitcommon.c"
22
23/* This is in a separate file because because sem_timedwait is only provided
24 if __USE_XOPEN2K is defined. */
25int
26___sem_timedwait64 (sem_t *sem, const struct __timespec64 *abstime)
27{
28 if (! valid_nanoseconds (abstime->tv_nsec))
29 {
30 __set_errno (EINVAL);
31 return -1;
32 }
33
34 /* Check sem_wait.c for a more detailed explanation why it is required. */
35 __pthread_testcancel ();
36
37 if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
38 return 0;
39 else
40 return __new_sem_wait_slow64 ((struct new_sem *) sem,
41 CLOCK_REALTIME, abstime);
42}
43
44#if __TIMESIZE == 64
45strong_alias (___sem_timedwait64, ___sem_timedwait)
46#else /* __TIMESPEC64 != 64 */
47strong_alias (___sem_timedwait64, __sem_timedwait64)
48libc_hidden_def (__sem_timedwait64)
49
50int
51___sem_timedwait (sem_t *sem, const struct timespec *abstime)
52{
53 struct __timespec64 ts64 = valid_timespec_to_timespec64 (*abstime);
54
55 return __sem_timedwait64 (sem, &ts64);
56}
57#endif /* __TIMESPEC64 != 64 */
58versioned_symbol (libc, ___sem_timedwait, sem_timedwait, GLIBC_2_34);
59#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
60compat_symbol (libpthread, ___sem_timedwait, sem_timedwait, GLIBC_2_2);
61#endif
62