| Dan Albert | 7ba3c57 | 2014-09-06 20:38:25 +0000 | [diff] [blame] | 1 | #include <atomic> |
| 2 | |
| 3 | template <class A, class T> |
| 4 | bool cmpxchg_weak_loop(A& atomic, T& expected, T desired) { |
| 5 | for (int i = 0; i < 10; i++) { |
| 6 | if (atomic.compare_exchange_weak(expected, desired) == true) { |
| 7 | return true; |
| 8 | } |
| 9 | } |
| 10 | |
| 11 | return false; |
| 12 | } |
| 13 | |
| 14 | template <class A, class T> |
| 15 | bool cmpxchg_weak_loop(A& atomic, T& expected, T desired, |
| 16 | std::memory_order success, |
| 17 | std::memory_order failure) { |
| 18 | for (int i = 0; i < 10; i++) { |
| 19 | if (atomic.compare_exchange_weak(expected, desired, success, |
| 20 | failure) == true) { |
| 21 | return true; |
| 22 | } |
| 23 | } |
| 24 | |
| 25 | return false; |
| 26 | } |
| 27 | |
| 28 | template <class A, class T> |
| 29 | bool c_cmpxchg_weak_loop(A* atomic, T* expected, T desired) { |
| 30 | for (int i = 0; i < 10; i++) { |
| 31 | if (std::atomic_compare_exchange_weak(atomic, expected, desired) == true) { |
| 32 | return true; |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | return false; |
| 37 | } |
| 38 | |
| 39 | template <class A, class T> |
| 40 | bool c_cmpxchg_weak_loop(A* atomic, T* expected, T desired, |
| 41 | std::memory_order success, |
| 42 | std::memory_order failure) { |
| 43 | for (int i = 0; i < 10; i++) { |
| 44 | if (std::atomic_compare_exchange_weak_explicit(atomic, expected, desired, |
| 45 | success, failure) == true) { |
| 46 | return true; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | return false; |
| 51 | } |