| Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 1 | /*===-- atomic_flag_test_and_set.c ------------------------------------------=== |
| 2 | * |
| 3 | * The LLVM Compiler Infrastructure |
| 4 | * |
| 5 | * This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | * Source Licenses. See LICENSE.TXT for details. |
| 7 | * |
| 8 | *===------------------------------------------------------------------------=== |
| 9 | * |
| 10 | * This file implements atomic_flag_test_and_set from C11's stdatomic.h. |
| 11 | * |
| 12 | *===------------------------------------------------------------------------=== |
| 13 | */ |
| 14 | |
| 15 | #include <stdatomic.h> |
| 16 | #undef atomic_flag_test_and_set |
| 17 | _Bool atomic_flag_test_and_set(volatile atomic_flag *object) { |
| 18 | return __c11_atomic_exchange(&(object)->_Value, 1, __ATOMIC_SEQ_CST); |
| 19 | } |