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| 68 | #ifndef ECB_MEMORY_FENCE |
68 | #ifndef ECB_MEMORY_FENCE |
| 69 | #if ECB_GCC_VERSION(2,5) |
69 | #if ECB_GCC_VERSION(2,5) |
| 70 | #if __x86 |
70 | #if __x86 |
| 71 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; or.b $0, -1(%%esp)" : : : "memory") |
71 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; or.b $0, -1(%%esp)" : : : "memory") |
| 72 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
72 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
| 73 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENC /* better be safe than sorry */ |
73 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
| 74 | #elif __amd64 |
74 | #elif __amd64 |
| 75 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
75 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
| 76 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
76 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
| 77 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
77 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
| 78 | #endif |
78 | #endif |
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| 93 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
93 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
| 94 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
94 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
| 95 | #endif |
95 | #endif |
| 96 | #endif |
96 | #endif |
| 97 | |
97 | |
| 98 | #ifndef ECB_MEMORY_FENCE_ACQ |
98 | #ifndef ECB_MEMORY_FENCE |
| 99 | #include <pthread.h> |
99 | #include <pthread.h> |
| 100 | |
100 | |
| 101 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
101 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
| 102 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
102 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
| 103 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
103 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
