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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 1.58 by root, Sun Nov 4 16:52:52 2007 UTC

… …
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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_EMBED
32# include "config.h" 32# include "config.h"
33#endif 33#endif
34 34
35#include <math.h> 35#include <math.h>
36#include <stdlib.h> 36#include <stdlib.h>
… …
93#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 93#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 94#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ 95#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 96/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
97 97
98#ifndef EV_EMBED
98#include "ev.h" 99# include "ev.h"
100#endif
99 101
100#if __GNUC__ >= 3 102#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value)) 103# define expect(expr,value) __builtin_expect ((expr),(value))
102# define inline inline 104# define inline inline
103#else 105#else
… …
113 115
114typedef struct ev_watcher *W; 116typedef struct ev_watcher *W;
115typedef struct ev_watcher_list *WL; 117typedef struct ev_watcher_list *WL;
116typedef struct ev_watcher_time *WT; 118typedef struct ev_watcher_time *WT;
117 119
118static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ 120static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119static ev_tstamp rt_now;
120static int method;
121 121
122static int have_monotonic; /* runtime */ 122/*****************************************************************************/
123 123
124static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ 124typedef struct
125static void (*method_modify)(EV_P_ int fd, int oev, int nev); 125{
126static void (*method_poll)(EV_P_ ev_tstamp timeout); 126 struct ev_watcher_list *head;
127 unsigned char events;
128 unsigned char reify;
129} ANFD;
127 130
128static int activecnt; /* number of active events */ 131typedef struct
132{
133 W w;
134 int events;
135} ANPENDING;
129 136
130#if EV_USE_SELECT 137#if EV_MULTIPLICITY
131static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo;
132static int vec_max;
133#endif
134 138
135#if EV_USEV_POLL 139struct ev_loop
136static struct pollfd *polls; 140{
137static int pollmax, pollcnt; 141# define VAR(name,decl) decl;
138static int *pollidxs; /* maps fds into structure indices */ 142# include "ev_vars.h"
139static int pollidxmax; 143};
140#endif 144# undef VAR
145# include "ev_wrap.h"
141 146
142#if EV_USE_EPOLL 147#else
143static int epoll_fd = -1;
144 148
145static struct epoll_event *events; 149# define VAR(name,decl) static decl;
146static int eventmax; 150# include "ev_vars.h"
147#endif 151# undef VAR
148 152
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 153#endif
156 154
157/*****************************************************************************/ 155/*****************************************************************************/
158 156
159inline ev_tstamp 157inline ev_tstamp
… …
208 cur = newcnt; \ 206 cur = newcnt; \
209 } 207 }
210 208
211/*****************************************************************************/ 209/*****************************************************************************/
212 210
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 211static void
224anfds_init (ANFD *base, int count) 212anfds_init (ANFD *base, int count)
225{ 213{
226 while (count--) 214 while (count--)
227 { 215 {
… …
230 base->reify = 0; 218 base->reify = 0;
231 219
232 ++base; 220 ++base;
233 } 221 }
234} 222}
235
236typedef struct
237{
238 W w;
239 int events;
240} ANPENDING;
241
242static ANPENDING *pendings [NUMPRI];
243static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
244 223
245static void 224static void
246event (EV_P_ W w, int events) 225event (EV_P_ W w, int events)
247{ 226{
248 if (w->pending) 227 if (w->pending)
… …
280 event (EV_A_ (W)w, ev); 259 event (EV_A_ (W)w, ev);
281 } 260 }
282} 261}
283 262
284/*****************************************************************************/ 263/*****************************************************************************/
285
286static int *fdchanges;
287static int fdchangemax, fdchangecnt;
288 264
289static void 265static void
290fd_reify (EV_P) 266fd_reify (EV_P)
291{ 267{
292 int i; 268 int i;
… …
364 fd_kill (EV_A_ fd); 340 fd_kill (EV_A_ fd);
365 return; 341 return;
366 } 342 }
367} 343}
368 344
345/* susually called after fork if method needs to re-arm all fds from scratch */
346static void
347fd_rearm_all (EV_P)
348{
349 int fd;
350
351 /* this should be highly optimised to not do anything but set a flag */
352 for (fd = 0; fd < anfdmax; ++fd)
353 if (anfds [fd].events)
354 {
355 anfds [fd].events = 0;
356 fd_change (fd);
357 }
358}
359
369/*****************************************************************************/ 360/*****************************************************************************/
370 361
371static struct ev_timer **timers;
372static int timermax, timercnt;
373
374static struct ev_periodic **periodics;
375static int periodicmax, periodiccnt;
376
377static void 362static void
378upheap (WT *timers, int k) 363upheap (WT *heap, int k)
379{ 364{
380 WT w = timers [k]; 365 WT w = heap [k];
381 366
382 while (k && timers [k >> 1]->at > w->at) 367 while (k && heap [k >> 1]->at > w->at)
383 { 368 {
384 timers [k] = timers [k >> 1]; 369 heap [k] = heap [k >> 1];
385 timers [k]->active = k + 1; 370 heap [k]->active = k + 1;
386 k >>= 1; 371 k >>= 1;
387 } 372 }
388 373
389 timers [k] = w; 374 heap [k] = w;
390 timers [k]->active = k + 1; 375 heap [k]->active = k + 1;
391 376
392} 377}
393 378
394static void 379static void
395downheap (WT *timers, int N, int k) 380downheap (WT *heap, int N, int k)
396{ 381{
397 WT w = timers [k]; 382 WT w = heap [k];
398 383
399 while (k < (N >> 1)) 384 while (k < (N >> 1))
400 { 385 {
401 int j = k << 1; 386 int j = k << 1;
402 387
403 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 388 if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
404 ++j; 389 ++j;
405 390
406 if (w->at <= timers [j]->at) 391 if (w->at <= heap [j]->at)
407 break; 392 break;
408 393
409 timers [k] = timers [j]; 394 heap [k] = heap [j];
410 timers [k]->active = k + 1; 395 heap [k]->active = k + 1;
411 k = j; 396 k = j;
412 } 397 }
413 398
414 timers [k] = w; 399 heap [k] = w;
415 timers [k]->active = k + 1; 400 heap [k]->active = k + 1;
416} 401}
417 402
418/*****************************************************************************/ 403/*****************************************************************************/
419 404
420typedef struct 405typedef struct
… …
426static ANSIG *signals; 411static ANSIG *signals;
427static int signalmax; 412static int signalmax;
428 413
429static int sigpipe [2]; 414static int sigpipe [2];
430static sig_atomic_t volatile gotsig; 415static sig_atomic_t volatile gotsig;
431static struct ev_io sigev;
432 416
433static void 417static void
434signals_init (ANSIG *base, int count) 418signals_init (ANSIG *base, int count)
435{ 419{
436 while (count--) 420 while (count--)
… …
486 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 470 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 471 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488#endif 472#endif
489 473
490 ev_io_set (&sigev, sigpipe [0], EV_READ); 474 ev_io_set (&sigev, sigpipe [0], EV_READ);
491 ev_io_start (&sigev); 475 ev_io_start (EV_A_ &sigev);
492 ev_unref (EV_A); /* child watcher should not keep loop alive */ 476 ev_unref (EV_A); /* child watcher should not keep loop alive */
493} 477}
494 478
495/*****************************************************************************/ 479/*****************************************************************************/
496
497static struct ev_idle **idles;
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
508static struct ev_child *childs [PID_HASHSIZE];
509static struct ev_signal childev;
510 480
511#ifndef WIN32 481#ifndef WIN32
512 482
513#ifndef WCONTINUED 483#ifndef WCONTINUED
514# define WCONTINUED 0 484# define WCONTINUED 0
… …
589ev_method (EV_P) 559ev_method (EV_P)
590{ 560{
591 return method; 561 return method;
592} 562}
593 563
594int 564static void
595ev_init (EV_P_ int methods) 565loop_init (EV_P_ int methods)
596{ 566{
597 if (!method) 567 if (!method)
598 { 568 {
599#if EV_USE_MONOTONIC 569#if EV_USE_MONOTONIC
600 { 570 {
… …
605#endif 575#endif
606 576
607 rt_now = ev_time (); 577 rt_now = ev_time ();
608 mn_now = get_clock (); 578 mn_now = get_clock ();
609 now_floor = mn_now; 579 now_floor = mn_now;
610 diff = rt_now - mn_now; 580 rtmn_diff = rt_now - mn_now;
611
612 if (pipe (sigpipe))
613 return 0;
614 581
615 if (methods == EVMETHOD_AUTO) 582 if (methods == EVMETHOD_AUTO)
616 if (!enable_secure () && getenv ("LIBmethodS")) 583 if (!enable_secure () && getenv ("LIBEV_METHODS"))
617 methods = atoi (getenv ("LIBmethodS")); 584 methods = atoi (getenv ("LIBEV_METHODS"));
618 else 585 else
619 methods = EVMETHOD_ANY; 586 methods = EVMETHOD_ANY;
620 587
621 method = 0; 588 method = 0;
622#if EV_USE_KQUEUE 589#if EV_USE_KQUEUE
… …
629 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 596 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
630#endif 597#endif
631#if EV_USE_SELECT 598#if EV_USE_SELECT
632 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 599 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
633#endif 600#endif
601 }
602}
634 603
604void
605loop_destroy (EV_P)
606{
607#if EV_USE_KQUEUE
608 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609#endif
610#if EV_USE_EPOLL
611 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612#endif
613#if EV_USEV_POLL
614 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615#endif
616#if EV_USE_SELECT
617 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618#endif
619
620 method = 0;
621 /*TODO*/
622}
623
624void
625loop_fork (EV_P)
626{
627 /*TODO*/
628#if EV_USE_EPOLL
629 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630#endif
631#if EV_USE_KQUEUE
632 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
633#endif
634}
635
636#if EV_MULTIPLICITY
637struct ev_loop *
638ev_loop_new (int methods)
639{
640 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
641
642 loop_init (EV_A_ methods);
643
644 if (ev_methods (EV_A))
645 return loop;
646
647 return 0;
648}
649
650void
651ev_loop_destroy (EV_P)
652{
653 loop_destroy (EV_A);
654 free (loop);
655}
656
657void
658ev_loop_fork (EV_P)
659{
660 loop_fork (EV_A);
661}
662
663#endif
664
665#if EV_MULTIPLICITY
666struct ev_loop default_loop_struct;
667static struct ev_loop *default_loop;
668
669struct ev_loop *
670#else
671static int default_loop;
672
673int
674#endif
675ev_default_loop (int methods)
676{
677 if (sigpipe [0] == sigpipe [1])
678 if (pipe (sigpipe))
679 return 0;
680
681 if (!default_loop)
682 {
683#if EV_MULTIPLICITY
684 struct ev_loop *loop = default_loop = &default_loop_struct;
685#else
686 default_loop = 1;
687#endif
688
689 loop_init (EV_A_ methods);
690
635 if (method) 691 if (ev_method (EV_A))
636 { 692 {
637 ev_watcher_init (&sigev, sigcb); 693 ev_watcher_init (&sigev, sigcb);
638 ev_set_priority (&sigev, EV_MAXPRI); 694 ev_set_priority (&sigev, EV_MAXPRI);
639 siginit (EV_A); 695 siginit (EV_A);
640 696
… …
643 ev_set_priority (&childev, EV_MAXPRI); 699 ev_set_priority (&childev, EV_MAXPRI);
644 ev_signal_start (EV_A_ &childev); 700 ev_signal_start (EV_A_ &childev);
645 ev_unref (EV_A); /* child watcher should not keep loop alive */ 701 ev_unref (EV_A); /* child watcher should not keep loop alive */
646#endif 702#endif
647 } 703 }
704 else
705 default_loop = 0;
648 } 706 }
649 707
650 return method; 708 return default_loop;
651} 709}
652 710
653/*****************************************************************************/
654
655void 711void
656ev_fork_prepare (void) 712ev_default_destroy (void)
657{ 713{
658 /* nop */ 714#if EV_MULTIPLICITY
659} 715 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 716#endif
674 717
718 ev_ref (EV_A); /* child watcher */
719 ev_signal_stop (EV_A_ &childev);
720
721 ev_ref (EV_A); /* signal watcher */
675 ev_io_stop (&sigev); 722 ev_io_stop (EV_A_ &sigev);
723
724 close (sigpipe [0]); sigpipe [0] = 0;
725 close (sigpipe [1]); sigpipe [1] = 0;
726
727 loop_destroy (EV_A);
728}
729
730void
731ev_default_fork (EV_P)
732{
733 loop_fork (EV_A);
734
735 ev_io_stop (EV_A_ &sigev);
676 close (sigpipe [0]); 736 close (sigpipe [0]);
677 close (sigpipe [1]); 737 close (sigpipe [1]);
678 pipe (sigpipe); 738 pipe (sigpipe);
739
740 ev_ref (EV_A); /* signal watcher */
679 siginit (); 741 siginit (EV_A);
680} 742}
681 743
682/*****************************************************************************/ 744/*****************************************************************************/
683 745
684static void 746static void
… …
714 downheap ((WT *)timers, timercnt, 0); 776 downheap ((WT *)timers, timercnt, 0);
715 } 777 }
716 else 778 else
717 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 779 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
718 780
719 event ((W)w, EV_TIMEOUT); 781 event (EV_A_ (W)w, EV_TIMEOUT);
720 } 782 }
721} 783}
722 784
723static void 785static void
724periodics_reify (EV_P) 786periodics_reify (EV_P)
… …
740 event (EV_A_ (W)w, EV_PERIODIC); 802 event (EV_A_ (W)w, EV_PERIODIC);
741 } 803 }
742} 804}
743 805
744static void 806static void
745periodics_reschedule (EV_P_ ev_tstamp diff) 807periodics_reschedule (EV_P)
746{ 808{
747 int i; 809 int i;
748 810
749 /* adjust periodics after time jump */ 811 /* adjust periodics after time jump */
750 for (i = 0; i < periodiccnt; ++i) 812 for (i = 0; i < periodiccnt; ++i)
… …
771{ 833{
772 mn_now = get_clock (); 834 mn_now = get_clock ();
773 835
774 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 836 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
775 { 837 {
776 rt_now = mn_now + diff; 838 rt_now = rtmn_diff + mn_now;
777 return 0; 839 return 0;
778 } 840 }
779 else 841 else
780 { 842 {
781 now_floor = mn_now; 843 now_floor = mn_now;
… …
792#if EV_USE_MONOTONIC 854#if EV_USE_MONOTONIC
793 if (expect_true (have_monotonic)) 855 if (expect_true (have_monotonic))
794 { 856 {
795 if (time_update_monotonic (EV_A)) 857 if (time_update_monotonic (EV_A))
796 { 858 {
797 ev_tstamp odiff = diff; 859 ev_tstamp odiff = rtmn_diff;
798 860
799 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 861 for (i = 4; --i; ) /* loop a few times, before making important decisions */
800 { 862 {
801 diff = rt_now - mn_now; 863 rtmn_diff = rt_now - mn_now;
802 864
803 if (fabs (odiff - diff) < MIN_TIMEJUMP) 865 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
804 return; /* all is well */ 866 return; /* all is well */
805 867
806 rt_now = ev_time (); 868 rt_now = ev_time ();
807 mn_now = get_clock (); 869 mn_now = get_clock ();
808 now_floor = mn_now; 870 now_floor = mn_now;
809 } 871 }
810 872
811 periodics_reschedule (EV_A_ diff - odiff); 873 periodics_reschedule (EV_A);
812 /* no timer adjustment, as the monotonic clock doesn't jump */ 874 /* no timer adjustment, as the monotonic clock doesn't jump */
875 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
813 } 876 }
814 } 877 }
815 else 878 else
816#endif 879#endif
817 { 880 {
818 rt_now = ev_time (); 881 rt_now = ev_time ();
819 882
820 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 883 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
821 { 884 {
822 periodics_reschedule (EV_A_ rt_now - mn_now); 885 periodics_reschedule (EV_A);
823 886
824 /* adjust timers. this is easy, as the offset is the same for all */ 887 /* adjust timers. this is easy, as the offset is the same for all */
825 for (i = 0; i < timercnt; ++i) 888 for (i = 0; i < timercnt; ++i)
826 timers [i]->at += diff; 889 timers [i]->at += rt_now - mn_now;
827 } 890 }
828 891
829 mn_now = rt_now; 892 mn_now = rt_now;
830 } 893 }
831} 894}
… …
1094 } 1157 }
1095 1158
1096 ev_stop (EV_A_ (W)w); 1159 ev_stop (EV_A_ (W)w);
1097} 1160}
1098 1161
1162void
1163ev_idle_start (EV_P_ struct ev_idle *w)
1164{
1165 if (ev_is_active (w))
1166 return;
1167
1168 ev_start (EV_A_ (W)w, ++idlecnt);
1169 array_needsize (idles, idlemax, idlecnt, );
1170 idles [idlecnt - 1] = w;
1171}
1172
1173void
1174ev_idle_stop (EV_P_ struct ev_idle *w)
1175{
1176 ev_clear_pending (EV_A_ (W)w);
1177 if (ev_is_active (w))
1178 return;
1179
1180 idles [w->active - 1] = idles [--idlecnt];
1181 ev_stop (EV_A_ (W)w);
1182}
1183
1184void
1185ev_prepare_start (EV_P_ struct ev_prepare *w)
1186{
1187 if (ev_is_active (w))
1188 return;
1189
1190 ev_start (EV_A_ (W)w, ++preparecnt);
1191 array_needsize (prepares, preparemax, preparecnt, );
1192 prepares [preparecnt - 1] = w;
1193}
1194
1195void
1196ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197{
1198 ev_clear_pending (EV_A_ (W)w);
1199 if (ev_is_active (w))
1200 return;
1201
1202 prepares [w->active - 1] = prepares [--preparecnt];
1203 ev_stop (EV_A_ (W)w);
1204}
1205
1206void
1207ev_check_start (EV_P_ struct ev_check *w)
1208{
1209 if (ev_is_active (w))
1210 return;
1211
1212 ev_start (EV_A_ (W)w, ++checkcnt);
1213 array_needsize (checks, checkmax, checkcnt, );
1214 checks [checkcnt - 1] = w;
1215}
1216
1217void
1218ev_check_stop (EV_P_ struct ev_check *w)
1219{
1220 ev_clear_pending (EV_A_ (W)w);
1221 if (ev_is_active (w))
1222 return;
1223
1224 checks [w->active - 1] = checks [--checkcnt];
1225 ev_stop (EV_A_ (W)w);
1226}
1227
1099#ifndef SA_RESTART 1228#ifndef SA_RESTART
1100# define SA_RESTART 0 1229# define SA_RESTART 0
1101#endif 1230#endif
1102 1231
1103void 1232void
1104ev_signal_start (EV_P_ struct ev_signal *w) 1233ev_signal_start (EV_P_ struct ev_signal *w)
1105{ 1234{
1235#if EV_MULTIPLICITY
1236 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1237#endif
1106 if (ev_is_active (w)) 1238 if (ev_is_active (w))
1107 return; 1239 return;
1108 1240
1109 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1241 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1110 1242
… …
1135 if (!signals [w->signum - 1].head) 1267 if (!signals [w->signum - 1].head)
1136 signal (w->signum, SIG_DFL); 1268 signal (w->signum, SIG_DFL);
1137} 1269}
1138 1270
1139void 1271void
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) 1272ev_child_start (EV_P_ struct ev_child *w)
1207{ 1273{
1274#if EV_MULTIPLICITY
1275 assert (("child watchers are only supported in the default loop", loop == default_loop));
1276#endif
1208 if (ev_is_active (w)) 1277 if (ev_is_active (w))
1209 return; 1278 return;
1210 1279
1211 ev_start (EV_A_ (W)w, 1); 1280 ev_start (EV_A_ (W)w, 1);
1212 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1281 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1284 ev_timer_start (EV_A_ &once->to); 1353 ev_timer_start (EV_A_ &once->to);
1285 } 1354 }
1286 } 1355 }
1287} 1356}
1288 1357
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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