blob: 9a13cfc91ba8307d66ca99ae29c37528e3073963 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
/* Lock a semaphore if it does not require blocking. Generic version.
Copyright (C) 2005-2026 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <semaphore.h>
#include <errno.h>
#include <hurd.h>
#include <pt-internal.h>
#include <shlib-compat.h>
int
__sem_trywait (sem_t *sem)
{
struct new_sem *isem = (struct new_sem *) sem;
if (__sem_waitfast (isem, 1) == 0)
return 0;
return __hurd_fail (EAGAIN);
}
libc_hidden_def (__sem_trywait)
versioned_symbol (libc, __sem_trywait, sem_trywait, GLIBC_2_43);
# if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_12, GLIBC_2_43)
compat_symbol (libpthread, __sem_trywait, sem_trywait, GLIBC_2_12);
#endif
|
