1/* sem_clockwait -- wait on a semaphore with timeout using the specified
2 clock.
3
4 Copyright (C) 2019 Free Software Foundation, Inc.
5 This file is part of the GNU C Library.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
20
21#include "sem_waitcommon.c"
22
23int
24sem_clockwait (sem_t *sem, clockid_t clockid,
25 const struct timespec *abstime)
26{
27 /* Check that supplied clockid is one we support, even if we don't end up
28 waiting. */
29 if (!futex_abstimed_supported_clockid (clockid))
30 {
31 __set_errno (EINVAL);
32 return -1;
33 }
34
35 if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
36 {
37 __set_errno (EINVAL);
38 return -1;
39 }
40
41 if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
42 return 0;
43 else
44 return __new_sem_wait_slow ((struct new_sem *) sem, clockid, abstime);
45}
46