1 | /* sem_clockwait -- wait on a semaphore with timeout using the specified |
2 | clock. |
3 | |
4 | Copyright (C) 2019-2020 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 | <https://www.gnu.org/licenses/>. */ |
20 | |
21 | #include <time.h> |
22 | #include "sem_waitcommon.c" |
23 | |
24 | int |
25 | sem_clockwait (sem_t *sem, clockid_t clockid, |
26 | const struct timespec *abstime) |
27 | { |
28 | /* Check that supplied clockid is one we support, even if we don't end up |
29 | waiting. */ |
30 | if (!futex_abstimed_supported_clockid (clockid)) |
31 | { |
32 | __set_errno (EINVAL); |
33 | return -1; |
34 | } |
35 | |
36 | if (! valid_nanoseconds (abstime->tv_nsec)) |
37 | { |
38 | __set_errno (EINVAL); |
39 | return -1; |
40 | } |
41 | |
42 | if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0) |
43 | return 0; |
44 | else |
45 | return __new_sem_wait_slow ((struct new_sem *) sem, clockid, abstime); |
46 | } |
47 | |