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 | |
23 | int |
24 | sem_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 | |