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Comparing libev/ev.c (file contents):
Revision 1.384 by root, Wed Jul 20 00:58:45 2011 UTC vs.
Revision 1.390 by root, Thu Aug 4 11:58:02 2011 UTC

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 _MSC_VER >= 1400 516 #elif _MSC_VER >= 1400 /* VC++ 2005 */
517 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
517 #define ECB_MEMORY_FENCE do { } while (0) 518 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 519 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 520 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
520 #elif defined(_WIN32) && defined(MemoryBarrier) 521 #elif defined(_WIN32)
522 #include <WinNT.h>
521 #define ECB_MEMORY_FENCE MemoryBarrier () 523 #define ECB_MEMORY_FENCE MemoryBarrier ()
522 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 524 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
523 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 525 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
524 #endif 526 #endif
525#endif 527#endif
2616 time_update (EV_A_ 1e100); 2618 time_update (EV_A_ 1e100);
2617 2619
2618 /* from now on, we want a pipe-wake-up */ 2620 /* from now on, we want a pipe-wake-up */
2619 pipe_write_wanted = 1; 2621 pipe_write_wanted = 1;
2620 2622
2621 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 */
2622 2624
2623 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 2625 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2624 { 2626 {
2625 waittime = MAX_BLOCKTIME; 2627 waittime = MAX_BLOCKTIME;
2626 2628
4028 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4030 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
4029#endif 4031#endif
4030 4032
4031#if EV_IDLE_ENABLE 4033#if EV_IDLE_ENABLE
4032 if (types & EV_IDLE) 4034 if (types & EV_IDLE)
4033 for (j = NUMPRI; i--; ) 4035 for (j = NUMPRI; j--; )
4034 for (i = idlecnt [j]; i--; ) 4036 for (i = idlecnt [j]; i--; )
4035 cb (EV_A_ EV_IDLE, idles [j][i]); 4037 cb (EV_A_ EV_IDLE, idles [j][i]);
4036#endif 4038#endif
4037 4039
4038#if EV_FORK_ENABLE 4040#if EV_FORK_ENABLE

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