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| 82 | #ifndef ECB_MEMORY_FENCE |
82 | #ifndef ECB_MEMORY_FENCE |
| 83 | #if ECB_GCC_VERSION(4,4) |
83 | #if ECB_GCC_VERSION(4,4) |
| 84 | #define ECB_MEMORY_FENCE __sync_synchronize () |
84 | #define ECB_MEMORY_FENCE __sync_synchronize () |
| 85 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
85 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
| 86 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
86 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
| 87 | #elif _MSC_VER >= 1400 |
87 | #elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */ |
| 88 | #define ECB_MEMORY_FENCE do { } while (0) |
88 | #define ECB_MEMORY_FENCE do { } while (0) |
| 89 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
89 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
| 90 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
90 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
| 91 | #elif defined(_WIN32) && defined(MemoryBarrier) |
91 | #elif defined(_WIN32) |
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92 | #include <WinNT.h> |
| 92 | #define ECB_MEMORY_FENCE MemoryBarrier () |
93 | #define ECB_MEMORY_FENCE MemoryBarrier () |
| 93 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
94 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
| 94 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
95 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
| 95 | #endif |
96 | #endif |
| 96 | #endif |
97 | #endif |
