ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.63 by root, Sun Nov 4 22:03:17 2007 UTC

… …
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31#ifndef EV_STANDALONE 31#ifndef EV_STANDALONE
32# include "config.h" 32# include "config.h"
33
34# if HAVE_CLOCK_GETTIME
35# define EV_USE_MONOTONIC 1
36# define EV_USE_REALTIME 1
37# endif
38
39# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1
41# endif
42
43# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1
45# endif
46
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1
49# endif
50
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1
53# endif
54
33#endif 55#endif
34 56
35#include <math.h> 57#include <math.h>
36#include <stdlib.h> 58#include <stdlib.h>
37#include <unistd.h> 59#include <unistd.h>
… …
58 80
59#ifndef EV_USE_SELECT 81#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1 82# define EV_USE_SELECT 1
61#endif 83#endif
62 84
63#ifndef EV_USEV_POLL 85#ifndef EV_USE_POLL
64# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ 86# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65#endif 87#endif
66 88
67#ifndef EV_USE_EPOLL 89#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0 90# define EV_USE_EPOLL 0
69#endif 91#endif
70 92
71#ifndef EV_USE_KQUEUE 93#ifndef EV_USE_KQUEUE
72# define EV_USE_KQUEUE 0 94# define EV_USE_KQUEUE 0
95#endif
96
97#ifndef EV_USE_WIN32
98# ifdef WIN32
99# define EV_USE_WIN32 1
100# else
101# define EV_USE_WIN32 0
102# endif
73#endif 103#endif
74 104
75#ifndef EV_USE_REALTIME 105#ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 1 106# define EV_USE_REALTIME 1
77#endif 107#endif
… …
130{ 160{
131 W w; 161 W w;
132 int events; 162 int events;
133} ANPENDING; 163} ANPENDING;
134 164
135#ifdef EV_MULTIPLICITY 165#if EV_MULTIPLICITY
136 166
137struct ev_loop 167struct ev_loop
138{ 168{
139# define VAR(name,decl) decl; 169# define VAR(name,decl) decl;
140# include "ev_vars.h" 170# include "ev_vars.h"
… …
327 357
328/* called on ENOMEM in select/poll to kill some fds and retry */ 358/* called on ENOMEM in select/poll to kill some fds and retry */
329static void 359static void
330fd_enomem (EV_P) 360fd_enomem (EV_P)
331{ 361{
332 int fd = anfdmax; 362 int fd;
333 363
334 while (fd--) 364 for (fd = anfdmax; fd--; )
335 if (anfds [fd].events) 365 if (anfds [fd].events)
336 { 366 {
337 close (fd); 367 close (fd);
338 fd_kill (EV_A_ fd); 368 fd_kill (EV_A_ fd);
339 return; 369 return;
340 } 370 }
341} 371}
342 372
373/* susually called after fork if method needs to re-arm all fds from scratch */
374static void
375fd_rearm_all (EV_P)
376{
377 int fd;
378
379 /* this should be highly optimised to not do anything but set a flag */
380 for (fd = 0; fd < anfdmax; ++fd)
381 if (anfds [fd].events)
382 {
383 anfds [fd].events = 0;
384 fd_change (EV_A_ fd);
385 }
386}
387
343/*****************************************************************************/ 388/*****************************************************************************/
344 389
345static void 390static void
346upheap (WT *heap, int k) 391upheap (WT *heap, int k)
347{ 392{
348 WT w = heap [k]; 393 WT w = heap [k];
349 394
350 while (k && heap [k >> 1]->at > w->at) 395 while (k && heap [k >> 1]->at > w->at)
351 { 396 {
352 heap [k] = heap [k >> 1]; 397 heap [k] = heap [k >> 1];
353 heap [k]->active = k + 1; 398 ((W)heap [k])->active = k + 1;
354 k >>= 1; 399 k >>= 1;
355 } 400 }
356 401
357 heap [k] = w; 402 heap [k] = w;
358 heap [k]->active = k + 1; 403 ((W)heap [k])->active = k + 1;
359 404
360} 405}
361 406
362static void 407static void
363downheap (WT *heap, int N, int k) 408downheap (WT *heap, int N, int k)
… …
373 418
374 if (w->at <= heap [j]->at) 419 if (w->at <= heap [j]->at)
375 break; 420 break;
376 421
377 heap [k] = heap [j]; 422 heap [k] = heap [j];
378 heap [k]->active = k + 1; 423 ((W)heap [k])->active = k + 1;
379 k = j; 424 k = j;
380 } 425 }
381 426
382 heap [k] = w; 427 heap [k] = w;
383 heap [k]->active = k + 1; 428 ((W)heap [k])->active = k + 1;
384} 429}
385 430
386/*****************************************************************************/ 431/*****************************************************************************/
387 432
388typedef struct 433typedef struct
… …
394static ANSIG *signals; 439static ANSIG *signals;
395static int signalmax; 440static int signalmax;
396 441
397static int sigpipe [2]; 442static int sigpipe [2];
398static sig_atomic_t volatile gotsig; 443static sig_atomic_t volatile gotsig;
444static struct ev_io sigev;
399 445
400static void 446static void
401signals_init (ANSIG *base, int count) 447signals_init (ANSIG *base, int count)
402{ 448{
403 while (count--) 449 while (count--)
… …
461 507
462/*****************************************************************************/ 508/*****************************************************************************/
463 509
464#ifndef WIN32 510#ifndef WIN32
465 511
512static struct ev_child *childs [PID_HASHSIZE];
513static struct ev_signal childev;
514
466#ifndef WCONTINUED 515#ifndef WCONTINUED
467# define WCONTINUED 0 516# define WCONTINUED 0
468#endif 517#endif
469 518
470static void 519static void
… …
473 struct ev_child *w; 522 struct ev_child *w;
474 523
475 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 524 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
476 if (w->pid == pid || !w->pid) 525 if (w->pid == pid || !w->pid)
477 { 526 {
478 w->priority = sw->priority; /* need to do it *now* */ 527 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
479 w->rpid = pid; 528 w->rpid = pid;
480 w->rstatus = status; 529 w->rstatus = status;
481 event (EV_A_ (W)w, EV_CHILD); 530 event (EV_A_ (W)w, EV_CHILD);
482 } 531 }
483} 532}
484 533
485static void 534static void
… …
505# include "ev_kqueue.c" 554# include "ev_kqueue.c"
506#endif 555#endif
507#if EV_USE_EPOLL 556#if EV_USE_EPOLL
508# include "ev_epoll.c" 557# include "ev_epoll.c"
509#endif 558#endif
510#if EV_USEV_POLL 559#if EV_USE_POLL
511# include "ev_poll.c" 560# include "ev_poll.c"
512#endif 561#endif
513#if EV_USE_SELECT 562#if EV_USE_SELECT
514# include "ev_select.c" 563# include "ev_select.c"
515#endif 564#endif
… …
560 rt_now = ev_time (); 609 rt_now = ev_time ();
561 mn_now = get_clock (); 610 mn_now = get_clock ();
562 now_floor = mn_now; 611 now_floor = mn_now;
563 rtmn_diff = rt_now - mn_now; 612 rtmn_diff = rt_now - mn_now;
564 613
565 if (pipe (sigpipe))
566 return 0;
567
568 if (methods == EVMETHOD_AUTO) 614 if (methods == EVMETHOD_AUTO)
569 if (!enable_secure () && getenv ("LIBmethodS")) 615 if (!enable_secure () && getenv ("LIBEV_METHODS"))
570 methods = atoi (getenv ("LIBmethodS")); 616 methods = atoi (getenv ("LIBEV_METHODS"));
571 else 617 else
572 methods = EVMETHOD_ANY; 618 methods = EVMETHOD_ANY;
573 619
574 method = 0; 620 method = 0;
621#if EV_USE_WIN32
622 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
623#endif
575#if EV_USE_KQUEUE 624#if EV_USE_KQUEUE
576 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 625 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577#endif 626#endif
578#if EV_USE_EPOLL 627#if EV_USE_EPOLL
579 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 628 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580#endif 629#endif
581#if EV_USEV_POLL 630#if EV_USE_POLL
582 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 631 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583#endif 632#endif
584#if EV_USE_SELECT 633#if EV_USE_SELECT
585 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 634 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586#endif 635#endif
636 }
637}
587 638
639void
640loop_destroy (EV_P)
641{
642#if EV_USE_WIN32
643 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
644#endif
645#if EV_USE_KQUEUE
646 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
647#endif
648#if EV_USE_EPOLL
649 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
650#endif
651#if EV_USE_POLL
652 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
653#endif
654#if EV_USE_SELECT
655 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
656#endif
657
658 method = 0;
659 /*TODO*/
660}
661
662void
663loop_fork (EV_P)
664{
665 /*TODO*/
666#if EV_USE_EPOLL
667 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
668#endif
669#if EV_USE_KQUEUE
670 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
671#endif
672}
673
674#if EV_MULTIPLICITY
675struct ev_loop *
676ev_loop_new (int methods)
677{
678 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
679
680 loop_init (EV_A_ methods);
681
682 if (ev_method (EV_A))
683 return loop;
684
685 return 0;
686}
687
688void
689ev_loop_destroy (EV_P)
690{
691 loop_destroy (EV_A);
692 free (loop);
693}
694
695void
696ev_loop_fork (EV_P)
697{
698 loop_fork (EV_A);
699}
700
701#endif
702
703#if EV_MULTIPLICITY
704struct ev_loop default_loop_struct;
705static struct ev_loop *default_loop;
706
707struct ev_loop *
708#else
709static int default_loop;
710
711int
712#endif
713ev_default_loop (int methods)
714{
715 if (sigpipe [0] == sigpipe [1])
716 if (pipe (sigpipe))
717 return 0;
718
719 if (!default_loop)
720 {
721#if EV_MULTIPLICITY
722 struct ev_loop *loop = default_loop = &default_loop_struct;
723#else
724 default_loop = 1;
725#endif
726
727 loop_init (EV_A_ methods);
728
588 if (method) 729 if (ev_method (EV_A))
589 { 730 {
590 ev_watcher_init (&sigev, sigcb); 731 ev_watcher_init (&sigev, sigcb);
591 ev_set_priority (&sigev, EV_MAXPRI); 732 ev_set_priority (&sigev, EV_MAXPRI);
592 siginit (EV_A); 733 siginit (EV_A);
593 734
… …
596 ev_set_priority (&childev, EV_MAXPRI); 737 ev_set_priority (&childev, EV_MAXPRI);
597 ev_signal_start (EV_A_ &childev); 738 ev_signal_start (EV_A_ &childev);
598 ev_unref (EV_A); /* child watcher should not keep loop alive */ 739 ev_unref (EV_A); /* child watcher should not keep loop alive */
599#endif 740#endif
600 } 741 }
742 else
743 default_loop = 0;
601 } 744 }
602 745
603 return method;
604}
605
606#ifdef EV_MULTIPLICITY
607
608struct ev_loop *
609ev_loop_new (int methods)
610{
611 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
612
613 loop_init (EV_A_ methods);
614
615 return loop; 746 return default_loop;
616} 747}
617 748
618void 749void
619ev_loop_delete (EV_P) 750ev_default_destroy (void)
620{ 751{
621 /*TODO*/
622 free (loop);
623}
624
625#else
626
627int
628ev_init (int methods)
629{
630 loop_init ();
631}
632
633#endif
634
635/*****************************************************************************/
636
637void
638ev_fork_prepare (void)
639{
640 /* nop */
641}
642
643void
644ev_fork_parent (void)
645{
646 /* nop */
647}
648
649void
650ev_fork_child (void)
651{
652 /*TODO*/
653#if !EV_MULTIPLICITY 752#if EV_MULTIPLICITY
654#if EV_USE_EPOLL 753 struct ev_loop *loop = default_loop;
655 if (method == EVMETHOD_EPOLL)
656 epoll_postfork_child (EV_A);
657#endif 754#endif
755
756 ev_ref (EV_A); /* child watcher */
757 ev_signal_stop (EV_A_ &childev);
758
759 ev_ref (EV_A); /* signal watcher */
760 ev_io_stop (EV_A_ &sigev);
761
762 close (sigpipe [0]); sigpipe [0] = 0;
763 close (sigpipe [1]); sigpipe [1] = 0;
764
765 loop_destroy (EV_A);
766}
767
768void
769ev_default_fork (void)
770{
771#if EV_MULTIPLICITY
772 struct ev_loop *loop = default_loop;
773#endif
774
775 loop_fork (EV_A);
658 776
659 ev_io_stop (EV_A_ &sigev); 777 ev_io_stop (EV_A_ &sigev);
660 close (sigpipe [0]); 778 close (sigpipe [0]);
661 close (sigpipe [1]); 779 close (sigpipe [1]);
662 pipe (sigpipe); 780 pipe (sigpipe);
781
782 ev_ref (EV_A); /* signal watcher */
663 siginit (EV_A); 783 siginit (EV_A);
664#endif
665} 784}
666 785
667/*****************************************************************************/ 786/*****************************************************************************/
668 787
669static void 788static void
… …
677 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 796 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
678 797
679 if (p->w) 798 if (p->w)
680 { 799 {
681 p->w->pending = 0; 800 p->w->pending = 0;
801
682 p->w->cb (EV_A_ p->w, p->events); 802 (*(void (**)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events);
683 } 803 }
684 } 804 }
685} 805}
686 806
687static void 807static void
688timers_reify (EV_P) 808timers_reify (EV_P)
689{ 809{
690 while (timercnt && timers [0]->at <= mn_now) 810 while (timercnt && ((WT)timers [0])->at <= mn_now)
691 { 811 {
692 struct ev_timer *w = timers [0]; 812 struct ev_timer *w = timers [0];
813
814 assert (("inactive timer on timer heap detected", ev_is_active (w)));
693 815
694 /* first reschedule or stop timer */ 816 /* first reschedule or stop timer */
695 if (w->repeat) 817 if (w->repeat)
696 { 818 {
697 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 819 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
698 w->at = mn_now + w->repeat; 820 ((WT)w)->at = mn_now + w->repeat;
699 downheap ((WT *)timers, timercnt, 0); 821 downheap ((WT *)timers, timercnt, 0);
700 } 822 }
701 else 823 else
702 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 824 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
703 825
… …
706} 828}
707 829
708static void 830static void
709periodics_reify (EV_P) 831periodics_reify (EV_P)
710{ 832{
711 while (periodiccnt && periodics [0]->at <= rt_now) 833 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
712 { 834 {
713 struct ev_periodic *w = periodics [0]; 835 struct ev_periodic *w = periodics [0];
836
837 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
714 838
715 /* first reschedule or stop timer */ 839 /* first reschedule or stop timer */
716 if (w->interval) 840 if (w->interval)
717 { 841 {
718 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 842 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
719 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); 843 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
720 downheap ((WT *)periodics, periodiccnt, 0); 844 downheap ((WT *)periodics, periodiccnt, 0);
721 } 845 }
722 else 846 else
723 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 847 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
724 848
… …
736 { 860 {
737 struct ev_periodic *w = periodics [i]; 861 struct ev_periodic *w = periodics [i];
738 862
739 if (w->interval) 863 if (w->interval)
740 { 864 {
741 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 865 ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
742 866
743 if (fabs (diff) >= 1e-4) 867 if (fabs (diff) >= 1e-4)
744 { 868 {
745 ev_periodic_stop (EV_A_ w); 869 ev_periodic_stop (EV_A_ w);
746 ev_periodic_start (EV_A_ w); 870 ev_periodic_start (EV_A_ w);
… …
807 { 931 {
808 periodics_reschedule (EV_A); 932 periodics_reschedule (EV_A);
809 933
810 /* adjust timers. this is easy, as the offset is the same for all */ 934 /* adjust timers. this is easy, as the offset is the same for all */
811 for (i = 0; i < timercnt; ++i) 935 for (i = 0; i < timercnt; ++i)
812 timers [i]->at += rt_now - mn_now; 936 ((WT)timers [i])->at += rt_now - mn_now;
813 } 937 }
814 938
815 mn_now = rt_now; 939 mn_now = rt_now;
816 } 940 }
817} 941}
… …
868 { 992 {
869 block = MAX_BLOCKTIME; 993 block = MAX_BLOCKTIME;
870 994
871 if (timercnt) 995 if (timercnt)
872 { 996 {
873 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 997 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
874 if (block > to) block = to; 998 if (block > to) block = to;
875 } 999 }
876 1000
877 if (periodiccnt) 1001 if (periodiccnt)
878 { 1002 {
879 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1003 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
880 if (block > to) block = to; 1004 if (block > to) block = to;
881 } 1005 }
882 1006
883 if (block < 0.) block = 0.; 1007 if (block < 0.) block = 0.;
884 } 1008 }
… …
1001ev_timer_start (EV_P_ struct ev_timer *w) 1125ev_timer_start (EV_P_ struct ev_timer *w)
1002{ 1126{
1003 if (ev_is_active (w)) 1127 if (ev_is_active (w))
1004 return; 1128 return;
1005 1129
1006 w->at += mn_now; 1130 ((WT)w)->at += mn_now;
1007 1131
1008 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1132 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1009 1133
1010 ev_start (EV_A_ (W)w, ++timercnt); 1134 ev_start (EV_A_ (W)w, ++timercnt);
1011 array_needsize (timers, timermax, timercnt, ); 1135 array_needsize (timers, timermax, timercnt, );
1012 timers [timercnt - 1] = w; 1136 timers [timercnt - 1] = w;
1013 upheap ((WT *)timers, timercnt - 1); 1137 upheap ((WT *)timers, timercnt - 1);
1138
1139 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1014} 1140}
1015 1141
1016void 1142void
1017ev_timer_stop (EV_P_ struct ev_timer *w) 1143ev_timer_stop (EV_P_ struct ev_timer *w)
1018{ 1144{
1019 ev_clear_pending (EV_A_ (W)w); 1145 ev_clear_pending (EV_A_ (W)w);
1020 if (!ev_is_active (w)) 1146 if (!ev_is_active (w))
1021 return; 1147 return;
1022 1148
1149 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1150
1023 if (w->active < timercnt--) 1151 if (((W)w)->active < timercnt--)
1024 { 1152 {
1025 timers [w->active - 1] = timers [timercnt]; 1153 timers [((W)w)->active - 1] = timers [timercnt];
1026 downheap ((WT *)timers, timercnt, w->active - 1); 1154 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1027 } 1155 }
1028 1156
1029 w->at = w->repeat; 1157 ((WT)w)->at = w->repeat;
1030 1158
1031 ev_stop (EV_A_ (W)w); 1159 ev_stop (EV_A_ (W)w);
1032} 1160}
1033 1161
1034void 1162void
… …
1036{ 1164{
1037 if (ev_is_active (w)) 1165 if (ev_is_active (w))
1038 { 1166 {
1039 if (w->repeat) 1167 if (w->repeat)
1040 { 1168 {
1041 w->at = mn_now + w->repeat; 1169 ((WT)w)->at = mn_now + w->repeat;
1042 downheap ((WT *)timers, timercnt, w->active - 1); 1170 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1043 } 1171 }
1044 else 1172 else
1045 ev_timer_stop (EV_A_ w); 1173 ev_timer_stop (EV_A_ w);
1046 } 1174 }
1047 else if (w->repeat) 1175 else if (w->repeat)
… …
1056 1184
1057 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1185 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1058 1186
1059 /* this formula differs from the one in periodic_reify because we do not always round up */ 1187 /* this formula differs from the one in periodic_reify because we do not always round up */
1060 if (w->interval) 1188 if (w->interval)
1061 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1189 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1062 1190
1063 ev_start (EV_A_ (W)w, ++periodiccnt); 1191 ev_start (EV_A_ (W)w, ++periodiccnt);
1064 array_needsize (periodics, periodicmax, periodiccnt, ); 1192 array_needsize (periodics, periodicmax, periodiccnt, );
1065 periodics [periodiccnt - 1] = w; 1193 periodics [periodiccnt - 1] = w;
1066 upheap ((WT *)periodics, periodiccnt - 1); 1194 upheap ((WT *)periodics, periodiccnt - 1);
1195
1196 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1067} 1197}
1068 1198
1069void 1199void
1070ev_periodic_stop (EV_P_ struct ev_periodic *w) 1200ev_periodic_stop (EV_P_ struct ev_periodic *w)
1071{ 1201{
1072 ev_clear_pending (EV_A_ (W)w); 1202 ev_clear_pending (EV_A_ (W)w);
1073 if (!ev_is_active (w)) 1203 if (!ev_is_active (w))
1074 return; 1204 return;
1075 1205
1206 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1207
1076 if (w->active < periodiccnt--) 1208 if (((W)w)->active < periodiccnt--)
1077 { 1209 {
1078 periodics [w->active - 1] = periodics [periodiccnt]; 1210 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1079 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1211 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1080 } 1212 }
1081 1213
1214 ev_stop (EV_A_ (W)w);
1215}
1216
1217void
1218ev_idle_start (EV_P_ struct ev_idle *w)
1219{
1220 if (ev_is_active (w))
1221 return;
1222
1223 ev_start (EV_A_ (W)w, ++idlecnt);
1224 array_needsize (idles, idlemax, idlecnt, );
1225 idles [idlecnt - 1] = w;
1226}
1227
1228void
1229ev_idle_stop (EV_P_ struct ev_idle *w)
1230{
1231 ev_clear_pending (EV_A_ (W)w);
1232 if (ev_is_active (w))
1233 return;
1234
1235 idles [((W)w)->active - 1] = idles [--idlecnt];
1236 ev_stop (EV_A_ (W)w);
1237}
1238
1239void
1240ev_prepare_start (EV_P_ struct ev_prepare *w)
1241{
1242 if (ev_is_active (w))
1243 return;
1244
1245 ev_start (EV_A_ (W)w, ++preparecnt);
1246 array_needsize (prepares, preparemax, preparecnt, );
1247 prepares [preparecnt - 1] = w;
1248}
1249
1250void
1251ev_prepare_stop (EV_P_ struct ev_prepare *w)
1252{
1253 ev_clear_pending (EV_A_ (W)w);
1254 if (ev_is_active (w))
1255 return;
1256
1257 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1258 ev_stop (EV_A_ (W)w);
1259}
1260
1261void
1262ev_check_start (EV_P_ struct ev_check *w)
1263{
1264 if (ev_is_active (w))
1265 return;
1266
1267 ev_start (EV_A_ (W)w, ++checkcnt);
1268 array_needsize (checks, checkmax, checkcnt, );
1269 checks [checkcnt - 1] = w;
1270}
1271
1272void
1273ev_check_stop (EV_P_ struct ev_check *w)
1274{
1275 ev_clear_pending (EV_A_ (W)w);
1276 if (ev_is_active (w))
1277 return;
1278
1279 checks [((W)w)->active - 1] = checks [--checkcnt];
1082 ev_stop (EV_A_ (W)w); 1280 ev_stop (EV_A_ (W)w);
1083} 1281}
1084 1282
1085#ifndef SA_RESTART 1283#ifndef SA_RESTART
1086# define SA_RESTART 0 1284# define SA_RESTART 0
1087#endif 1285#endif
1088 1286
1089void 1287void
1090ev_signal_start (EV_P_ struct ev_signal *w) 1288ev_signal_start (EV_P_ struct ev_signal *w)
1091{ 1289{
1290#if EV_MULTIPLICITY
1291 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1292#endif
1092 if (ev_is_active (w)) 1293 if (ev_is_active (w))
1093 return; 1294 return;
1094 1295
1095 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1296 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1096 1297
1097 ev_start (EV_A_ (W)w, 1); 1298 ev_start (EV_A_ (W)w, 1);
1098 array_needsize (signals, signalmax, w->signum, signals_init); 1299 array_needsize (signals, signalmax, w->signum, signals_init);
1099 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1300 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1100 1301
1101 if (!w->next) 1302 if (!((WL)w)->next)
1102 { 1303 {
1103 struct sigaction sa; 1304 struct sigaction sa;
1104 sa.sa_handler = sighandler; 1305 sa.sa_handler = sighandler;
1105 sigfillset (&sa.sa_mask); 1306 sigfillset (&sa.sa_mask);
1106 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1307 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
… …
1121 if (!signals [w->signum - 1].head) 1322 if (!signals [w->signum - 1].head)
1122 signal (w->signum, SIG_DFL); 1323 signal (w->signum, SIG_DFL);
1123} 1324}
1124 1325
1125void 1326void
1126ev_idle_start (EV_P_ struct ev_idle *w)
1127{
1128 if (ev_is_active (w))
1129 return;
1130
1131 ev_start (EV_A_ (W)w, ++idlecnt);
1132 array_needsize (idles, idlemax, idlecnt, );
1133 idles [idlecnt - 1] = w;
1134}
1135
1136void
1137ev_idle_stop (EV_P_ struct ev_idle *w)
1138{
1139 ev_clear_pending (EV_A_ (W)w);
1140 if (ev_is_active (w))
1141 return;
1142
1143 idles [w->active - 1] = idles [--idlecnt];
1144 ev_stop (EV_A_ (W)w);
1145}
1146
1147void
1148ev_prepare_start (EV_P_ struct ev_prepare *w)
1149{
1150 if (ev_is_active (w))
1151 return;
1152
1153 ev_start (EV_A_ (W)w, ++preparecnt);
1154 array_needsize (prepares, preparemax, preparecnt, );
1155 prepares [preparecnt - 1] = w;
1156}
1157
1158void
1159ev_prepare_stop (EV_P_ struct ev_prepare *w)
1160{
1161 ev_clear_pending (EV_A_ (W)w);
1162 if (ev_is_active (w))
1163 return;
1164
1165 prepares [w->active - 1] = prepares [--preparecnt];
1166 ev_stop (EV_A_ (W)w);
1167}
1168
1169void
1170ev_check_start (EV_P_ struct ev_check *w)
1171{
1172 if (ev_is_active (w))
1173 return;
1174
1175 ev_start (EV_A_ (W)w, ++checkcnt);
1176 array_needsize (checks, checkmax, checkcnt, );
1177 checks [checkcnt - 1] = w;
1178}
1179
1180void
1181ev_check_stop (EV_P_ struct ev_check *w)
1182{
1183 ev_clear_pending (EV_A_ (W)w);
1184 if (ev_is_active (w))
1185 return;
1186
1187 checks [w->active - 1] = checks [--checkcnt];
1188 ev_stop (EV_A_ (W)w);
1189}
1190
1191void
1192ev_child_start (EV_P_ struct ev_child *w) 1327ev_child_start (EV_P_ struct ev_child *w)
1193{ 1328{
1329#if EV_MULTIPLICITY
1330 assert (("child watchers are only supported in the default loop", loop == default_loop));
1331#endif
1194 if (ev_is_active (w)) 1332 if (ev_is_active (w))
1195 return; 1333 return;
1196 1334
1197 ev_start (EV_A_ (W)w, 1); 1335 ev_start (EV_A_ (W)w, 1);
1198 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1336 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1270 ev_timer_start (EV_A_ &once->to); 1408 ev_timer_start (EV_A_ &once->to);
1271 } 1409 }
1272 } 1410 }
1273} 1411}
1274 1412
1275/*****************************************************************************/
1276
1277#if 0
1278
1279struct ev_io wio;
1280
1281static void
1282sin_cb (struct ev_io *w, int revents)
1283{
1284 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1285}
1286
1287static void
1288ocb (struct ev_timer *w, int revents)
1289{
1290 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1291 ev_timer_stop (w);
1292 ev_timer_start (w);
1293}
1294
1295static void
1296scb (struct ev_signal *w, int revents)
1297{
1298 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1299 ev_io_stop (&wio);
1300 ev_io_start (&wio);
1301}
1302
1303static void
1304gcb (struct ev_signal *w, int revents)
1305{
1306 fprintf (stderr, "generic %x\n", revents);
1307
1308}
1309
1310int main (void)
1311{
1312 ev_init (0);
1313
1314 ev_io_init (&wio, sin_cb, 0, EV_READ);
1315 ev_io_start (&wio);
1316
1317 struct ev_timer t[10000];
1318
1319#if 0
1320 int i;
1321 for (i = 0; i < 10000; ++i)
1322 {
1323 struct ev_timer *w = t + i;
1324 ev_watcher_init (w, ocb, i);
1325 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1326 ev_timer_start (w);
1327 if (drand48 () < 0.5)
1328 ev_timer_stop (w);
1329 }
1330#endif
1331
1332 struct ev_timer t1;
1333 ev_timer_init (&t1, ocb, 5, 10);
1334 ev_timer_start (&t1);
1335
1336 struct ev_signal sig;
1337 ev_signal_init (&sig, scb, SIGQUIT);
1338 ev_signal_start (&sig);
1339
1340 struct ev_check cw;
1341 ev_check_init (&cw, gcb);
1342 ev_check_start (&cw);
1343
1344 struct ev_idle iw;
1345 ev_idle_init (&iw, gcb);
1346 ev_idle_start (&iw);
1347
1348 ev_loop (0);
1349
1350 return 0;
1351}
1352
1353#endif
1354
1355
1356
1357

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines