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| 542 | #define ECB_MEMORY_FENCE do { } while (0) |
542 | #define ECB_MEMORY_FENCE do { } while (0) |
| 543 | #endif |
543 | #endif |
| 544 | |
544 | |
| 545 | #ifndef ECB_MEMORY_FENCE |
545 | #ifndef ECB_MEMORY_FENCE |
| 546 | #if ECB_GCC_VERSION(2,5) |
546 | #if ECB_GCC_VERSION(2,5) |
| 547 | #if __x86 |
547 | #if __i386__ |
| 548 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
548 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
| 549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
| 550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
| 551 | #elif __amd64 |
551 | #elif __amd64 |
| 552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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| 859 | #endif |
859 | #endif |
| 860 | |
860 | |
| 861 | /* ECB.H END */ |
861 | /* ECB.H END */ |
| 862 | |
862 | |
| 863 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
863 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
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864 | /* if your architetcure doesn't need memory fences, e.g. because it is |
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865 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
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866 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
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867 | * libev, in which casess the memory fences become nops. |
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868 | * alternatively, you can remove this #error and link against libpthread, |
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869 | * which will then provide the memory fences. |
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870 | */ |
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871 | # error "memory fences not defined for your architecture, please report" |
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872 | #endif |
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873 | |
| 864 | # undef ECB_MEMORY_FENCE |
874 | #ifndef ECB_MEMORY_FENCE |
| 865 | # undef ECB_MEMORY_FENCE_ACQUIRE |
875 | # define ECB_MEMORY_FENCE do { } while (0) |
| 866 | # undef ECB_MEMORY_FENCE_RELEASE |
876 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
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877 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
| 867 | #endif |
878 | #endif |
| 868 | |
879 | |
| 869 | #define expect_false(cond) ecb_expect_false (cond) |
880 | #define expect_false(cond) ecb_expect_false (cond) |
| 870 | #define expect_true(cond) ecb_expect_true (cond) |
881 | #define expect_true(cond) ecb_expect_true (cond) |
| 871 | #define noinline ecb_noinline |
882 | #define noinline ecb_noinline |
