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Comparing libev/ev.c (file contents):
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC vs.
Revision 1.59 by root, Sun Nov 4 18:15:16 2007 UTC

… …
58 58
59#ifndef EV_USE_SELECT 59#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1 60# define EV_USE_SELECT 1
61#endif 61#endif
62 62
63#ifndef EV_USEV_POLL 63#ifndef EV_USE_POLL
64# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ 64# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65#endif 65#endif
66 66
67#ifndef EV_USE_EPOLL 67#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0 68# define EV_USE_EPOLL 0
69#endif 69#endif
… …
113 113
114typedef struct ev_watcher *W; 114typedef struct ev_watcher *W;
115typedef struct ev_watcher_list *WL; 115typedef struct ev_watcher_list *WL;
116typedef struct ev_watcher_time *WT; 116typedef struct ev_watcher_time *WT;
117 117
118static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ 118static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119static ev_tstamp rt_now;
120static int method;
121 119
122static int have_monotonic; /* runtime */ 120/*****************************************************************************/
123 121
124static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ 122typedef struct
125static void (*method_modify)(EV_P_ int fd, int oev, int nev); 123{
126static void (*method_poll)(EV_P_ ev_tstamp timeout); 124 struct ev_watcher_list *head;
125 unsigned char events;
126 unsigned char reify;
127} ANFD;
127 128
128static int activecnt; /* number of active events */ 129typedef struct
130{
131 W w;
132 int events;
133} ANPENDING;
129 134
130#if EV_USE_SELECT 135#if EV_MULTIPLICITY
131static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo;
132static int vec_max;
133#endif
134 136
135#if EV_USEV_POLL 137struct ev_loop
136static struct pollfd *polls; 138{
137static int pollmax, pollcnt; 139# define VAR(name,decl) decl;
138static int *pollidxs; /* maps fds into structure indices */ 140# include "ev_vars.h"
139static int pollidxmax; 141};
140#endif 142# undef VAR
143# include "ev_wrap.h"
141 144
142#if EV_USE_EPOLL 145#else
143static int epoll_fd = -1;
144 146
145static struct epoll_event *events; 147# define VAR(name,decl) static decl;
146static int eventmax; 148# include "ev_vars.h"
147#endif 149# undef VAR
148 150
149#if EV_USE_KQUEUE
150static int kqueue_fd;
151static struct kevent *kqueue_changes;
152static int kqueue_changemax, kqueue_changecnt;
153static struct kevent *kqueue_events;
154static int kqueue_eventmax;
155#endif 151#endif
156 152
157/*****************************************************************************/ 153/*****************************************************************************/
158 154
159inline ev_tstamp 155inline ev_tstamp
… …
208 cur = newcnt; \ 204 cur = newcnt; \
209 } 205 }
210 206
211/*****************************************************************************/ 207/*****************************************************************************/
212 208
213typedef struct
214{
215 struct ev_watcher_list *head;
216 unsigned char events;
217 unsigned char reify;
218} ANFD;
219
220static ANFD *anfds;
221static int anfdmax;
222
223static void 209static void
224anfds_init (ANFD *base, int count) 210anfds_init (ANFD *base, int count)
225{ 211{
226 while (count--) 212 while (count--)
227 { 213 {
… …
230 base->reify = 0; 216 base->reify = 0;
231 217
232 ++base; 218 ++base;
233 } 219 }
234} 220}
235
236typedef struct
237{
238 W w;
239 int events;
240} ANPENDING;
241
242static ANPENDING *pendings [NUMPRI];
243static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
244 221
245static void 222static void
246event (EV_P_ W w, int events) 223event (EV_P_ W w, int events)
247{ 224{
248 if (w->pending) 225 if (w->pending)
… …
280 event (EV_A_ (W)w, ev); 257 event (EV_A_ (W)w, ev);
281 } 258 }
282} 259}
283 260
284/*****************************************************************************/ 261/*****************************************************************************/
285
286static int *fdchanges;
287static int fdchangemax, fdchangecnt;
288 262
289static void 263static void
290fd_reify (EV_P) 264fd_reify (EV_P)
291{ 265{
292 int i; 266 int i;
… …
364 fd_kill (EV_A_ fd); 338 fd_kill (EV_A_ fd);
365 return; 339 return;
366 } 340 }
367} 341}
368 342
343/* susually called after fork if method needs to re-arm all fds from scratch */
344static void
345fd_rearm_all (EV_P)
346{
347 int fd;
348
349 /* this should be highly optimised to not do anything but set a flag */
350 for (fd = 0; fd < anfdmax; ++fd)
351 if (anfds [fd].events)
352 {
353 anfds [fd].events = 0;
354 fd_change (fd);
355 }
356}
357
369/*****************************************************************************/ 358/*****************************************************************************/
370 359
371static struct ev_timer **timers;
372static int timermax, timercnt;
373
374static struct ev_periodic **periodics;
375static int periodicmax, periodiccnt;
376
377static void 360static void
378upheap (WT *timers, int k) 361upheap (WT *heap, int k)
379{ 362{
380 WT w = timers [k]; 363 WT w = heap [k];
381 364
382 while (k && timers [k >> 1]->at > w->at) 365 while (k && heap [k >> 1]->at > w->at)
383 { 366 {
384 timers [k] = timers [k >> 1]; 367 heap [k] = heap [k >> 1];
385 timers [k]->active = k + 1; 368 heap [k]->active = k + 1;
386 k >>= 1; 369 k >>= 1;
387 } 370 }
388 371
389 timers [k] = w; 372 heap [k] = w;
390 timers [k]->active = k + 1; 373 heap [k]->active = k + 1;
391 374
392} 375}
393 376
394static void 377static void
395downheap (WT *timers, int N, int k) 378downheap (WT *heap, int N, int k)
396{ 379{
397 WT w = timers [k]; 380 WT w = heap [k];
398 381
399 while (k < (N >> 1)) 382 while (k < (N >> 1))
400 { 383 {
401 int j = k << 1; 384 int j = k << 1;
402 385
403 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 386 if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
404 ++j; 387 ++j;
405 388
406 if (w->at <= timers [j]->at) 389 if (w->at <= heap [j]->at)
407 break; 390 break;
408 391
409 timers [k] = timers [j]; 392 heap [k] = heap [j];
410 timers [k]->active = k + 1; 393 heap [k]->active = k + 1;
411 k = j; 394 k = j;
412 } 395 }
413 396
414 timers [k] = w; 397 heap [k] = w;
415 timers [k]->active = k + 1; 398 heap [k]->active = k + 1;
416} 399}
417 400
418/*****************************************************************************/ 401/*****************************************************************************/
419 402
420typedef struct 403typedef struct
… …
486 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 469 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 470 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488#endif 471#endif
489 472
490 ev_io_set (&sigev, sigpipe [0], EV_READ); 473 ev_io_set (&sigev, sigpipe [0], EV_READ);
491 ev_io_start (&sigev); 474 ev_io_start (EV_A_ &sigev);
492 ev_unref (EV_A); /* child watcher should not keep loop alive */ 475 ev_unref (EV_A); /* child watcher should not keep loop alive */
493} 476}
494 477
495/*****************************************************************************/ 478/*****************************************************************************/
496 479
497static struct ev_idle **idles; 480#ifndef WIN32
498static int idlemax, idlecnt;
499
500static struct ev_prepare **prepares;
501static int preparemax, preparecnt;
502
503static struct ev_check **checks;
504static int checkmax, checkcnt;
505
506/*****************************************************************************/
507 481
508static struct ev_child *childs [PID_HASHSIZE]; 482static struct ev_child *childs [PID_HASHSIZE];
509static struct ev_signal childev; 483static struct ev_signal childev;
510
511#ifndef WIN32
512 484
513#ifndef WCONTINUED 485#ifndef WCONTINUED
514# define WCONTINUED 0 486# define WCONTINUED 0
515#endif 487#endif
516 488
… …
552# include "ev_kqueue.c" 524# include "ev_kqueue.c"
553#endif 525#endif
554#if EV_USE_EPOLL 526#if EV_USE_EPOLL
555# include "ev_epoll.c" 527# include "ev_epoll.c"
556#endif 528#endif
557#if EV_USEV_POLL 529#if EV_USE_POLL
558# include "ev_poll.c" 530# include "ev_poll.c"
559#endif 531#endif
560#if EV_USE_SELECT 532#if EV_USE_SELECT
561# include "ev_select.c" 533# include "ev_select.c"
562#endif 534#endif
… …
589ev_method (EV_P) 561ev_method (EV_P)
590{ 562{
591 return method; 563 return method;
592} 564}
593 565
594int 566static void
595ev_init (EV_P_ int methods) 567loop_init (EV_P_ int methods)
596{ 568{
597 if (!method) 569 if (!method)
598 { 570 {
599#if EV_USE_MONOTONIC 571#if EV_USE_MONOTONIC
600 { 572 {
… …
605#endif 577#endif
606 578
607 rt_now = ev_time (); 579 rt_now = ev_time ();
608 mn_now = get_clock (); 580 mn_now = get_clock ();
609 now_floor = mn_now; 581 now_floor = mn_now;
610 diff = rt_now - mn_now; 582 rtmn_diff = rt_now - mn_now;
611
612 if (pipe (sigpipe))
613 return 0;
614 583
615 if (methods == EVMETHOD_AUTO) 584 if (methods == EVMETHOD_AUTO)
616 if (!enable_secure () && getenv ("LIBmethodS")) 585 if (!enable_secure () && getenv ("LIBEV_METHODS"))
617 methods = atoi (getenv ("LIBmethodS")); 586 methods = atoi (getenv ("LIBEV_METHODS"));
618 else 587 else
619 methods = EVMETHOD_ANY; 588 methods = EVMETHOD_ANY;
620 589
621 method = 0; 590 method = 0;
622#if EV_USE_KQUEUE 591#if EV_USE_KQUEUE
623 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 592 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
624#endif 593#endif
625#if EV_USE_EPOLL 594#if EV_USE_EPOLL
626 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 595 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
627#endif 596#endif
628#if EV_USEV_POLL 597#if EV_USE_POLL
629 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 598 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
630#endif 599#endif
631#if EV_USE_SELECT 600#if EV_USE_SELECT
632 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 601 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
633#endif 602#endif
603 }
604}
634 605
606void
607loop_destroy (EV_P)
608{
609#if EV_USE_KQUEUE
610 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
611#endif
612#if EV_USE_EPOLL
613 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
614#endif
615#if EV_USE_POLL
616 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
617#endif
618#if EV_USE_SELECT
619 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
620#endif
621
622 method = 0;
623 /*TODO*/
624}
625
626void
627loop_fork (EV_P)
628{
629 /*TODO*/
630#if EV_USE_EPOLL
631 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
632#endif
633#if EV_USE_KQUEUE
634 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
635#endif
636}
637
638#if EV_MULTIPLICITY
639struct ev_loop *
640ev_loop_new (int methods)
641{
642 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
643
644 loop_init (EV_A_ methods);
645
646 if (ev_methods (EV_A))
647 return loop;
648
649 return 0;
650}
651
652void
653ev_loop_destroy (EV_P)
654{
655 loop_destroy (EV_A);
656 free (loop);
657}
658
659void
660ev_loop_fork (EV_P)
661{
662 loop_fork (EV_A);
663}
664
665#endif
666
667#if EV_MULTIPLICITY
668struct ev_loop default_loop_struct;
669static struct ev_loop *default_loop;
670
671struct ev_loop *
672#else
673static int default_loop;
674
675int
676#endif
677ev_default_loop (int methods)
678{
679 if (sigpipe [0] == sigpipe [1])
680 if (pipe (sigpipe))
681 return 0;
682
683 if (!default_loop)
684 {
685#if EV_MULTIPLICITY
686 struct ev_loop *loop = default_loop = &default_loop_struct;
687#else
688 default_loop = 1;
689#endif
690
691 loop_init (EV_A_ methods);
692
635 if (method) 693 if (ev_method (EV_A))
636 { 694 {
637 ev_watcher_init (&sigev, sigcb); 695 ev_watcher_init (&sigev, sigcb);
638 ev_set_priority (&sigev, EV_MAXPRI); 696 ev_set_priority (&sigev, EV_MAXPRI);
639 siginit (EV_A); 697 siginit (EV_A);
640 698
… …
643 ev_set_priority (&childev, EV_MAXPRI); 701 ev_set_priority (&childev, EV_MAXPRI);
644 ev_signal_start (EV_A_ &childev); 702 ev_signal_start (EV_A_ &childev);
645 ev_unref (EV_A); /* child watcher should not keep loop alive */ 703 ev_unref (EV_A); /* child watcher should not keep loop alive */
646#endif 704#endif
647 } 705 }
706 else
707 default_loop = 0;
648 } 708 }
649 709
650 return method; 710 return default_loop;
651} 711}
652 712
653/*****************************************************************************/
654
655void 713void
656ev_fork_prepare (void) 714ev_default_destroy (void)
657{ 715{
658 /* nop */ 716#if EV_MULTIPLICITY
659} 717 struct ev_loop *loop = default_loop;
660
661void
662ev_fork_parent (void)
663{
664 /* nop */
665}
666
667void
668ev_fork_child (void)
669{
670#if EV_USE_EPOLL
671 if (method == EVMETHOD_EPOLL)
672 epoll_postfork_child ();
673#endif 718#endif
674 719
720 ev_ref (EV_A); /* child watcher */
721 ev_signal_stop (EV_A_ &childev);
722
723 ev_ref (EV_A); /* signal watcher */
675 ev_io_stop (&sigev); 724 ev_io_stop (EV_A_ &sigev);
725
726 close (sigpipe [0]); sigpipe [0] = 0;
727 close (sigpipe [1]); sigpipe [1] = 0;
728
729 loop_destroy (EV_A);
730}
731
732void
733ev_default_fork (EV_P)
734{
735 loop_fork (EV_A);
736
737 ev_io_stop (EV_A_ &sigev);
676 close (sigpipe [0]); 738 close (sigpipe [0]);
677 close (sigpipe [1]); 739 close (sigpipe [1]);
678 pipe (sigpipe); 740 pipe (sigpipe);
741
742 ev_ref (EV_A); /* signal watcher */
679 siginit (); 743 siginit (EV_A);
680} 744}
681 745
682/*****************************************************************************/ 746/*****************************************************************************/
683 747
684static void 748static void
… …
714 downheap ((WT *)timers, timercnt, 0); 778 downheap ((WT *)timers, timercnt, 0);
715 } 779 }
716 else 780 else
717 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 781 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
718 782
719 event ((W)w, EV_TIMEOUT); 783 event (EV_A_ (W)w, EV_TIMEOUT);
720 } 784 }
721} 785}
722 786
723static void 787static void
724periodics_reify (EV_P) 788periodics_reify (EV_P)
… …
740 event (EV_A_ (W)w, EV_PERIODIC); 804 event (EV_A_ (W)w, EV_PERIODIC);
741 } 805 }
742} 806}
743 807
744static void 808static void
745periodics_reschedule (EV_P_ ev_tstamp diff) 809periodics_reschedule (EV_P)
746{ 810{
747 int i; 811 int i;
748 812
749 /* adjust periodics after time jump */ 813 /* adjust periodics after time jump */
750 for (i = 0; i < periodiccnt; ++i) 814 for (i = 0; i < periodiccnt; ++i)
… …
771{ 835{
772 mn_now = get_clock (); 836 mn_now = get_clock ();
773 837
774 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 838 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
775 { 839 {
776 rt_now = mn_now + diff; 840 rt_now = rtmn_diff + mn_now;
777 return 0; 841 return 0;
778 } 842 }
779 else 843 else
780 { 844 {
781 now_floor = mn_now; 845 now_floor = mn_now;
… …
792#if EV_USE_MONOTONIC 856#if EV_USE_MONOTONIC
793 if (expect_true (have_monotonic)) 857 if (expect_true (have_monotonic))
794 { 858 {
795 if (time_update_monotonic (EV_A)) 859 if (time_update_monotonic (EV_A))
796 { 860 {
797 ev_tstamp odiff = diff; 861 ev_tstamp odiff = rtmn_diff;
798 862
799 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 863 for (i = 4; --i; ) /* loop a few times, before making important decisions */
800 { 864 {
801 diff = rt_now - mn_now; 865 rtmn_diff = rt_now - mn_now;
802 866
803 if (fabs (odiff - diff) < MIN_TIMEJUMP) 867 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
804 return; /* all is well */ 868 return; /* all is well */
805 869
806 rt_now = ev_time (); 870 rt_now = ev_time ();
807 mn_now = get_clock (); 871 mn_now = get_clock ();
808 now_floor = mn_now; 872 now_floor = mn_now;
809 } 873 }
810 874
811 periodics_reschedule (EV_A_ diff - odiff); 875 periodics_reschedule (EV_A);
812 /* no timer adjustment, as the monotonic clock doesn't jump */ 876 /* no timer adjustment, as the monotonic clock doesn't jump */
877 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
813 } 878 }
814 } 879 }
815 else 880 else
816#endif 881#endif
817 { 882 {
818 rt_now = ev_time (); 883 rt_now = ev_time ();
819 884
820 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 885 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
821 { 886 {
822 periodics_reschedule (EV_A_ rt_now - mn_now); 887 periodics_reschedule (EV_A);
823 888
824 /* adjust timers. this is easy, as the offset is the same for all */ 889 /* adjust timers. this is easy, as the offset is the same for all */
825 for (i = 0; i < timercnt; ++i) 890 for (i = 0; i < timercnt; ++i)
826 timers [i]->at += diff; 891 timers [i]->at += rt_now - mn_now;
827 } 892 }
828 893
829 mn_now = rt_now; 894 mn_now = rt_now;
830 } 895 }
831} 896}
… …
1094 } 1159 }
1095 1160
1096 ev_stop (EV_A_ (W)w); 1161 ev_stop (EV_A_ (W)w);
1097} 1162}
1098 1163
1164void
1165ev_idle_start (EV_P_ struct ev_idle *w)
1166{
1167 if (ev_is_active (w))
1168 return;
1169
1170 ev_start (EV_A_ (W)w, ++idlecnt);
1171 array_needsize (idles, idlemax, idlecnt, );
1172 idles [idlecnt - 1] = w;
1173}
1174
1175void
1176ev_idle_stop (EV_P_ struct ev_idle *w)
1177{
1178 ev_clear_pending (EV_A_ (W)w);
1179 if (ev_is_active (w))
1180 return;
1181
1182 idles [w->active - 1] = idles [--idlecnt];
1183 ev_stop (EV_A_ (W)w);
1184}
1185
1186void
1187ev_prepare_start (EV_P_ struct ev_prepare *w)
1188{
1189 if (ev_is_active (w))
1190 return;
1191
1192 ev_start (EV_A_ (W)w, ++preparecnt);
1193 array_needsize (prepares, preparemax, preparecnt, );
1194 prepares [preparecnt - 1] = w;
1195}
1196
1197void
1198ev_prepare_stop (EV_P_ struct ev_prepare *w)
1199{
1200 ev_clear_pending (EV_A_ (W)w);
1201 if (ev_is_active (w))
1202 return;
1203
1204 prepares [w->active - 1] = prepares [--preparecnt];
1205 ev_stop (EV_A_ (W)w);
1206}
1207
1208void
1209ev_check_start (EV_P_ struct ev_check *w)
1210{
1211 if (ev_is_active (w))
1212 return;
1213
1214 ev_start (EV_A_ (W)w, ++checkcnt);
1215 array_needsize (checks, checkmax, checkcnt, );
1216 checks [checkcnt - 1] = w;
1217}
1218
1219void
1220ev_check_stop (EV_P_ struct ev_check *w)
1221{
1222 ev_clear_pending (EV_A_ (W)w);
1223 if (ev_is_active (w))
1224 return;
1225
1226 checks [w->active - 1] = checks [--checkcnt];
1227 ev_stop (EV_A_ (W)w);
1228}
1229
1099#ifndef SA_RESTART 1230#ifndef SA_RESTART
1100# define SA_RESTART 0 1231# define SA_RESTART 0
1101#endif 1232#endif
1102 1233
1103void 1234void
1104ev_signal_start (EV_P_ struct ev_signal *w) 1235ev_signal_start (EV_P_ struct ev_signal *w)
1105{ 1236{
1237#if EV_MULTIPLICITY
1238 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1239#endif
1106 if (ev_is_active (w)) 1240 if (ev_is_active (w))
1107 return; 1241 return;
1108 1242
1109 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1243 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1110 1244
… …
1135 if (!signals [w->signum - 1].head) 1269 if (!signals [w->signum - 1].head)
1136 signal (w->signum, SIG_DFL); 1270 signal (w->signum, SIG_DFL);
1137} 1271}
1138 1272
1139void 1273void
1140ev_idle_start (EV_P_ struct ev_idle *w)
1141{
1142 if (ev_is_active (w))
1143 return;
1144
1145 ev_start (EV_A_ (W)w, ++idlecnt);
1146 array_needsize (idles, idlemax, idlecnt, );
1147 idles [idlecnt - 1] = w;
1148}
1149
1150void
1151ev_idle_stop (EV_P_ struct ev_idle *w)
1152{
1153 ev_clear_pending (EV_A_ (W)w);
1154 if (ev_is_active (w))
1155 return;
1156
1157 idles [w->active - 1] = idles [--idlecnt];
1158 ev_stop (EV_A_ (W)w);
1159}
1160
1161void
1162ev_prepare_start (EV_P_ struct ev_prepare *w)
1163{
1164 if (ev_is_active (w))
1165 return;
1166
1167 ev_start (EV_A_ (W)w, ++preparecnt);
1168 array_needsize (prepares, preparemax, preparecnt, );
1169 prepares [preparecnt - 1] = w;
1170}
1171
1172void
1173ev_prepare_stop (EV_P_ struct ev_prepare *w)
1174{
1175 ev_clear_pending (EV_A_ (W)w);
1176 if (ev_is_active (w))
1177 return;
1178
1179 prepares [w->active - 1] = prepares [--preparecnt];
1180 ev_stop (EV_A_ (W)w);
1181}
1182
1183void
1184ev_check_start (EV_P_ struct ev_check *w)
1185{
1186 if (ev_is_active (w))
1187 return;
1188
1189 ev_start (EV_A_ (W)w, ++checkcnt);
1190 array_needsize (checks, checkmax, checkcnt, );
1191 checks [checkcnt - 1] = w;
1192}
1193
1194void
1195ev_check_stop (EV_P_ struct ev_check *w)
1196{
1197 ev_clear_pending (EV_A_ (W)w);
1198 if (ev_is_active (w))
1199 return;
1200
1201 checks [w->active - 1] = checks [--checkcnt];
1202 ev_stop (EV_A_ (W)w);
1203}
1204
1205void
1206ev_child_start (EV_P_ struct ev_child *w) 1274ev_child_start (EV_P_ struct ev_child *w)
1207{ 1275{
1276#if EV_MULTIPLICITY
1277 assert (("child watchers are only supported in the default loop", loop == default_loop));
1278#endif
1208 if (ev_is_active (w)) 1279 if (ev_is_active (w))
1209 return; 1280 return;
1210 1281
1211 ev_start (EV_A_ (W)w, 1); 1282 ev_start (EV_A_ (W)w, 1);
1212 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1283 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1284 ev_timer_start (EV_A_ &once->to); 1355 ev_timer_start (EV_A_ &once->to);
1285 } 1356 }
1286 } 1357 }
1287} 1358}
1288 1359
1289/*****************************************************************************/
1290
1291#if 0
1292
1293struct ev_io wio;
1294
1295static void
1296sin_cb (struct ev_io *w, int revents)
1297{
1298 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1299}
1300
1301static void
1302ocb (struct ev_timer *w, int revents)
1303{
1304 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1305 ev_timer_stop (w);
1306 ev_timer_start (w);
1307}
1308
1309static void
1310scb (struct ev_signal *w, int revents)
1311{
1312 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1313 ev_io_stop (&wio);
1314 ev_io_start (&wio);
1315}
1316
1317static void
1318gcb (struct ev_signal *w, int revents)
1319{
1320 fprintf (stderr, "generic %x\n", revents);
1321
1322}
1323
1324int main (void)
1325{
1326 ev_init (0);
1327
1328 ev_io_init (&wio, sin_cb, 0, EV_READ);
1329 ev_io_start (&wio);
1330
1331 struct ev_timer t[10000];
1332
1333#if 0
1334 int i;
1335 for (i = 0; i < 10000; ++i)
1336 {
1337 struct ev_timer *w = t + i;
1338 ev_watcher_init (w, ocb, i);
1339 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1340 ev_timer_start (w);
1341 if (drand48 () < 0.5)
1342 ev_timer_stop (w);
1343 }
1344#endif
1345
1346 struct ev_timer t1;
1347 ev_timer_init (&t1, ocb, 5, 10);
1348 ev_timer_start (&t1);
1349
1350 struct ev_signal sig;
1351 ev_signal_init (&sig, scb, SIGQUIT);
1352 ev_signal_start (&sig);
1353
1354 struct ev_check cw;
1355 ev_check_init (&cw, gcb);
1356 ev_check_start (&cw);
1357
1358 struct ev_idle iw;
1359 ev_idle_init (&iw, gcb);
1360 ev_idle_start (&iw);
1361
1362 ev_loop (0);
1363
1364 return 0;
1365}
1366
1367#endif
1368
1369
1370
1371

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