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Comparing libev/ev.c (file contents):
Revision 1.346 by root, Thu Oct 14 05:07:04 2010 UTC vs.
Revision 1.352 by root, Thu Oct 21 02:33:08 2010 UTC

… …
448# ifdef __cplusplus 448# ifdef __cplusplus
449} 449}
450# endif 450# endif
451#endif 451#endif
452 452
453
454/**/ 453/**/
455 454
456#if EV_VERIFY >= 3 455#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 456# define EV_FREQUENT_CHECK ev_verify (EV_A)
458#else 457#else
… …
470#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 469#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
471 470
472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 471#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
473#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 472#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
474 473
474#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
475#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
476
475#if __GNUC__ >= 4 477#if __GNUC__ >= 4
476# define expect(expr,value) __builtin_expect ((expr),(value)) 478# define expect(expr,value) __builtin_expect ((expr),(value))
477# define noinline __attribute__ ((noinline)) 479# define noinline __attribute__ ((noinline))
478#else 480#else
479# define expect(expr,value) (expr) 481# define expect(expr,value) (expr)
… …
769 if (delay > 0.) 771 if (delay > 0.)
770 { 772 {
771#if EV_USE_NANOSLEEP 773#if EV_USE_NANOSLEEP
772 struct timespec ts; 774 struct timespec ts;
773 775
774 ts.tv_sec = (time_t)delay; 776 EV_TS_SET (ts, delay);
775 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
776
777 nanosleep (&ts, 0); 777 nanosleep (&ts, 0);
778#elif defined(_WIN32) 778#elif defined(_WIN32)
779 Sleep ((unsigned long)(delay * 1e3)); 779 Sleep ((unsigned long)(delay * 1e3));
780#else 780#else
781 struct timeval tv; 781 struct timeval tv;
782 782
783 tv.tv_sec = (time_t)delay;
784 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
785
786 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 783 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
787 /* something not guaranteed by newer posix versions, but guaranteed */ 784 /* something not guaranteed by newer posix versions, but guaranteed */
788 /* by older ones */ 785 /* by older ones */
786 EV_TV_SET (tv, delay);
789 select (0, 0, 0, 0, &tv); 787 select (0, 0, 0, 0, &tv);
790#endif 788#endif
791 } 789 }
792} 790}
793 791
… …
945 { 943 {
946 int fd = fdchanges [i]; 944 int fd = fdchanges [i];
947 ANFD *anfd = anfds + fd; 945 ANFD *anfd = anfds + fd;
948 ev_io *w; 946 ev_io *w;
949 947
950 unsigned char events = 0; 948 unsigned char o_events = anfd->events;
949 unsigned char o_reify = anfd->reify;
951 950
952 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 951 anfd->reify = 0;
953 events |= (unsigned char)w->events;
954 952
955#if EV_SELECT_IS_WINSOCKET 953#if EV_SELECT_IS_WINSOCKET
956 if (events) 954 if (o_reify & EV__IOFDSET)
957 { 955 {
958 unsigned long arg; 956 unsigned long arg;
959 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 957 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
960 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 958 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
961 } 959 }
962#endif 960#endif
963 961
962 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
964 { 963 {
965 unsigned char o_events = anfd->events;
966 unsigned char o_reify = anfd->reify;
967
968 anfd->reify = 0;
969 anfd->events = events; 964 anfd->events = 0;
970 965
971 if (o_events != events || o_reify & EV__IOFDSET) 966 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
967 anfd->events |= (unsigned char)w->events;
968
969 if (o_events != anfd->events)
970 o_reify = EV__IOFDSET; /* actually |= */
971 }
972
973 if (o_reify & EV__IOFDSET)
972 backend_modify (EV_A_ fd, o_events, events); 974 backend_modify (EV_A_ fd, o_events, anfd->events);
973 }
974 } 975 }
975 976
976 fdchangecnt = 0; 977 fdchangecnt = 0;
977} 978}
978 979
… …
2599 EV_FREQUENT_CHECK; 2600 EV_FREQUENT_CHECK;
2600 2601
2601 wlist_del (&anfds[w->fd].head, (WL)w); 2602 wlist_del (&anfds[w->fd].head, (WL)w);
2602 ev_stop (EV_A_ (W)w); 2603 ev_stop (EV_A_ (W)w);
2603 2604
2604 fd_change (EV_A_ w->fd, 1); 2605 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2605 2606
2606 EV_FREQUENT_CHECK; 2607 EV_FREQUENT_CHECK;
2607} 2608}
2608 2609
2609void noinline 2610void noinline
… …
3576ev_async_start (EV_P_ ev_async *w) 3577ev_async_start (EV_P_ ev_async *w)
3577{ 3578{
3578 if (expect_false (ev_is_active (w))) 3579 if (expect_false (ev_is_active (w)))
3579 return; 3580 return;
3580 3581
3582 w->sent = 0;
3583
3581 evpipe_init (EV_A); 3584 evpipe_init (EV_A);
3582 3585
3583 EV_FREQUENT_CHECK; 3586 EV_FREQUENT_CHECK;
3584 3587
3585 ev_start (EV_A_ (W)w, ++asynccnt); 3588 ev_start (EV_A_ (W)w, ++asynccnt);

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