diff options
| -rw-r--r-- | ev.c | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -499,7 +499,7 @@ struct signalfd_siginfo #if __x86 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE - #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE + #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ #elif __amd64 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") @@ -513,7 +513,12 @@ struct signalfd_siginfo #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 defined(_WIN32) && defined(MemoryBarrier) + #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 defined(_WIN32) + #include <WinNT.h> #define ECB_MEMORY_FENCE MemoryBarrier () #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |