#define ECB_MEMORY_FENCE __sync_synchronize ()
#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
- #elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */
- #define ECB_MEMORY_FENCE do { } while (0)
- #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
- #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
+ #elif _MSC_VER >= 1400 /* VC++ 2005 */
+ #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
+ #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
+ #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
+ #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
#elif defined(_WIN32)
#include <WinNT.h>
#define ECB_MEMORY_FENCE MemoryBarrier ()
/* from now on, we want a pipe-wake-up */
pipe_write_wanted = 1;
- ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */
+ ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
{