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497 | #ifndef ECB_MEMORY_FENCE |
497 | #ifndef ECB_MEMORY_FENCE |
498 | #if ECB_GCC_VERSION(2,5) |
498 | #if ECB_GCC_VERSION(2,5) |
499 | #if __x86 |
499 | #if __x86 |
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
503 | #elif __amd64 |
503 | #elif __amd64 |
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
507 | #endif |
507 | #endif |
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511 | #ifndef ECB_MEMORY_FENCE |
511 | #ifndef ECB_MEMORY_FENCE |
512 | #if ECB_GCC_VERSION(4,4) |
512 | #if ECB_GCC_VERSION(4,4) |
513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
516 | #elif defined(_WIN32) && defined(MemoryBarrier) |
516 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
517 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
518 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
519 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
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|
520 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
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|
521 | #elif defined(_WIN32) |
|
|
522 | #include <WinNT.h> |
517 | #define ECB_MEMORY_FENCE MemoryBarrier () |
523 | #define ECB_MEMORY_FENCE MemoryBarrier () |
518 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
524 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
519 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
525 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
520 | #endif |
526 | #endif |
521 | #endif |
527 | #endif |
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2612 | time_update (EV_A_ 1e100); |
2618 | time_update (EV_A_ 1e100); |
2613 | |
2619 | |
2614 | /* from now on, we want a pipe-wake-up */ |
2620 | /* from now on, we want a pipe-wake-up */ |
2615 | pipe_write_wanted = 1; |
2621 | pipe_write_wanted = 1; |
2616 | |
2622 | |
2617 | ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */ |
2623 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
2618 | |
2624 | |
2619 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2625 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2620 | { |
2626 | { |
2621 | waittime = MAX_BLOCKTIME; |
2627 | waittime = MAX_BLOCKTIME; |
2622 | |
2628 | |
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4024 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4030 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4025 | #endif |
4031 | #endif |
4026 | |
4032 | |
4027 | #if EV_IDLE_ENABLE |
4033 | #if EV_IDLE_ENABLE |
4028 | if (types & EV_IDLE) |
4034 | if (types & EV_IDLE) |
4029 | for (j = NUMPRI; i--; ) |
4035 | for (j = NUMPRI; j--; ) |
4030 | for (i = idlecnt [j]; i--; ) |
4036 | for (i = idlecnt [j]; i--; ) |
4031 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4037 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4032 | #endif |
4038 | #endif |
4033 | |
4039 | |
4034 | #if EV_FORK_ENABLE |
4040 | #if EV_FORK_ENABLE |