blob: 07209fc02d5e37bbc27925675983e22cd12e94ea (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
/*===-- atomic_flag_test_and_set.c ------------------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
*===------------------------------------------------------------------------===
*
* This file implements atomic_flag_test_and_set from C11's stdatomic.h.
*
*===------------------------------------------------------------------------===
*/
#include <stdatomic.h>
#undef atomic_flag_test_and_set
_Bool atomic_flag_test_and_set(volatile atomic_flag *object) {
return __c11_atomic_exchange(&(object)->_Value, 1, __ATOMIC_SEQ_CST);
}
|