blob: 2065458527b41e80961d0d3ff9f155bf57d88f15 (
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
|
/* Get the value of a semaphore. Generic version.
Copyright (C) 2005-2018 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, see <http://www.gnu.org/licenses/>. */
#include <semaphore.h>
#include <pt-internal.h>
int
__sem_getvalue (sem_t *restrict sem, int *restrict value)
{
__pthread_spin_lock (&sem->__lock);
*value = sem->__value;
__pthread_spin_unlock (&sem->__lock);
return 0;
}
strong_alias (__sem_getvalue, sem_getvalue);
|
