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Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 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);
476 ev_unref (EV_A); /* child watcher should not keep loop alive */
492} 477}
493 478
494/*****************************************************************************/ 479/*****************************************************************************/
495
496static struct ev_idle **idles;
497static int idlemax, idlecnt;
498
499static struct ev_prepare **prepares;
500static int preparemax, preparecnt;
501
502static struct ev_check **checks;
503static int checkmax, checkcnt;
504
505/*****************************************************************************/
506
507static struct ev_child *childs [PID_HASHSIZE];
508static struct ev_signal childev;
509 480
510#ifndef WIN32 481#ifndef WIN32
511 482
512#ifndef WCONTINUED 483#ifndef WCONTINUED
513# define WCONTINUED 0 484# define WCONTINUED 0
… …
588ev_method (EV_P) 559ev_method (EV_P)
589{ 560{
590 return method; 561 return method;
591} 562}
592 563
593int 564static void
594ev_init (EV_P_ int methods) 565loop_init (EV_P_ int methods)
595{ 566{
596 if (!method) 567 if (!method)
597 { 568 {
598#if EV_USE_MONOTONIC 569#if EV_USE_MONOTONIC
599 { 570 {
… …
604#endif 575#endif
605 576
606 rt_now = ev_time (); 577 rt_now = ev_time ();
607 mn_now = get_clock (); 578 mn_now = get_clock ();
608 now_floor = mn_now; 579 now_floor = mn_now;
609 diff = rt_now - mn_now; 580 rtmn_diff = rt_now - mn_now;
610
611 if (pipe (sigpipe))
612 return 0;
613 581
614 if (methods == EVMETHOD_AUTO) 582 if (methods == EVMETHOD_AUTO)
615 if (!enable_secure () && getenv ("LIBmethodS")) 583 if (!enable_secure () && getenv ("LIBEV_METHODS"))
616 methods = atoi (getenv ("LIBmethodS")); 584 methods = atoi (getenv ("LIBEV_METHODS"));
617 else 585 else
618 methods = EVMETHOD_ANY; 586 methods = EVMETHOD_ANY;
619 587
620 method = 0; 588 method = 0;
621#if EV_USE_KQUEUE 589#if EV_USE_KQUEUE
… …
628 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 596 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
629#endif 597#endif
630#if EV_USE_SELECT 598#if EV_USE_SELECT
631 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 599 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
632#endif 600#endif
601 }
602}
633 603
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
634 if (method) 691 if (ev_method (EV_A))
635 { 692 {
636 ev_watcher_init (&sigev, sigcb); 693 ev_watcher_init (&sigev, sigcb);
637 ev_set_priority (&sigev, EV_MAXPRI); 694 ev_set_priority (&sigev, EV_MAXPRI);
638 siginit (EV_A); 695 siginit (EV_A);
639 696
640#ifndef WIN32 697#ifndef WIN32
641 ev_signal_init (&childev, childcb, SIGCHLD); 698 ev_signal_init (&childev, childcb, SIGCHLD);
642 ev_set_priority (&childev, EV_MAXPRI); 699 ev_set_priority (&childev, EV_MAXPRI);
643 ev_signal_start (EV_A_ &childev); 700 ev_signal_start (EV_A_ &childev);
701 ev_unref (EV_A); /* child watcher should not keep loop alive */
644#endif 702#endif
645 } 703 }
704 else
705 default_loop = 0;
646 } 706 }
647 707
648 return method; 708 return default_loop;
649} 709}
650 710
651/*****************************************************************************/
652
653void 711void
654ev_fork_prepare (void) 712ev_default_destroy (void)
655{ 713{
656 /* nop */ 714#if EV_MULTIPLICITY
657} 715 struct ev_loop *loop = default_loop;
658
659void
660ev_fork_parent (void)
661{
662 /* nop */
663}
664
665void
666ev_fork_child (void)
667{
668#if EV_USE_EPOLL
669 if (method == EVMETHOD_EPOLL)
670 epoll_postfork_child ();
671#endif 716#endif
672 717
718 ev_ref (EV_A); /* child watcher */
719 ev_signal_stop (EV_A_ &childev);
720
721 ev_ref (EV_A); /* signal watcher */
673 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);
674 close (sigpipe [0]); 736 close (sigpipe [0]);
675 close (sigpipe [1]); 737 close (sigpipe [1]);
676 pipe (sigpipe); 738 pipe (sigpipe);
739
740 ev_ref (EV_A); /* signal watcher */
677 siginit (); 741 siginit (EV_A);
678} 742}
679 743
680/*****************************************************************************/ 744/*****************************************************************************/
681 745
682static void 746static void
… …
712 downheap ((WT *)timers, timercnt, 0); 776 downheap ((WT *)timers, timercnt, 0);
713 } 777 }
714 else 778 else
715 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 779 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
716 780
717 event ((W)w, EV_TIMEOUT); 781 event (EV_A_ (W)w, EV_TIMEOUT);
718 } 782 }
719} 783}
720 784
721static void 785static void
722periodics_reify (EV_P) 786periodics_reify (EV_P)
… …
738 event (EV_A_ (W)w, EV_PERIODIC); 802 event (EV_A_ (W)w, EV_PERIODIC);
739 } 803 }
740} 804}
741 805
742static void 806static void
743periodics_reschedule (EV_P_ ev_tstamp diff) 807periodics_reschedule (EV_P)
744{ 808{
745 int i; 809 int i;
746 810
747 /* adjust periodics after time jump */ 811 /* adjust periodics after time jump */
748 for (i = 0; i < periodiccnt; ++i) 812 for (i = 0; i < periodiccnt; ++i)
… …
769{ 833{
770 mn_now = get_clock (); 834 mn_now = get_clock ();
771 835
772 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 836 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
773 { 837 {
774 rt_now = mn_now + diff; 838 rt_now = rtmn_diff + mn_now;
775 return 0; 839 return 0;
776 } 840 }
777 else 841 else
778 { 842 {
779 now_floor = mn_now; 843 now_floor = mn_now;
… …
790#if EV_USE_MONOTONIC 854#if EV_USE_MONOTONIC
791 if (expect_true (have_monotonic)) 855 if (expect_true (have_monotonic))
792 { 856 {
793 if (time_update_monotonic (EV_A)) 857 if (time_update_monotonic (EV_A))
794 { 858 {
795 ev_tstamp odiff = diff; 859 ev_tstamp odiff = rtmn_diff;
796 860
797 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 */
798 { 862 {
799 diff = rt_now - mn_now; 863 rtmn_diff = rt_now - mn_now;
800 864
801 if (fabs (odiff - diff) < MIN_TIMEJUMP) 865 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
802 return; /* all is well */ 866 return; /* all is well */
803 867
804 rt_now = ev_time (); 868 rt_now = ev_time ();
805 mn_now = get_clock (); 869 mn_now = get_clock ();
806 now_floor = mn_now; 870 now_floor = mn_now;
807 } 871 }
808 872
809 periodics_reschedule (EV_A_ diff - odiff); 873 periodics_reschedule (EV_A);
810 /* 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) */
811 } 876 }
812 } 877 }
813 else 878 else
814#endif 879#endif
815 { 880 {
816 rt_now = ev_time (); 881 rt_now = ev_time ();
817 882
818 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))
819 { 884 {
820 periodics_reschedule (EV_A_ rt_now - mn_now); 885 periodics_reschedule (EV_A);
821 886
822 /* 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 */
823 for (i = 0; i < timercnt; ++i) 888 for (i = 0; i < timercnt; ++i)
824 timers [i]->at += diff; 889 timers [i]->at += rt_now - mn_now;
825 } 890 }
826 891
827 mn_now = rt_now; 892 mn_now = rt_now;
828 } 893 }
829} 894}
… …
911 /* queue check watchers, to be executed first */ 976 /* queue check watchers, to be executed first */
912 if (checkcnt) 977 if (checkcnt)
913 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 978 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
914 979
915 call_pending (EV_A); 980 call_pending (EV_A);
916 printf ("activecnt %d\n", activecnt);//D
917 } 981 }
918 while (activecnt && !loop_done); 982 while (activecnt && !loop_done);
919 983
920 if (loop_done != 2) 984 if (loop_done != 2)
921 loop_done = 0; 985 loop_done = 0;
… …
1093 } 1157 }
1094 1158
1095 ev_stop (EV_A_ (W)w); 1159 ev_stop (EV_A_ (W)w);
1096} 1160}
1097 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
1098#ifndef SA_RESTART 1228#ifndef SA_RESTART
1099# define SA_RESTART 0 1229# define SA_RESTART 0
1100#endif 1230#endif
1101 1231
1102void 1232void
1103ev_signal_start (EV_P_ struct ev_signal *w) 1233ev_signal_start (EV_P_ struct ev_signal *w)
1104{ 1234{
1235#if EV_MULTIPLICITY
1236 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1237#endif
1105 if (ev_is_active (w)) 1238 if (ev_is_active (w))
1106 return; 1239 return;
1107 1240
1108 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));
1109 1242
… …
1134 if (!signals [w->signum - 1].head) 1267 if (!signals [w->signum - 1].head)
1135 signal (w->signum, SIG_DFL); 1268 signal (w->signum, SIG_DFL);
1136} 1269}
1137 1270
1138void 1271void
1139ev_idle_start (EV_P_ struct ev_idle *w)
1140{
1141 if (ev_is_active (w))
1142 return;
1143
1144 ev_start (EV_A_ (W)w, ++idlecnt);
1145 array_needsize (idles, idlemax, idlecnt, );
1146 idles [idlecnt - 1] = w;
1147}
1148
1149void
1150ev_idle_stop (EV_P_ struct ev_idle *w)
1151{
1152 ev_clear_pending (EV_A_ (W)w);
1153 if (ev_is_active (w))
1154 return;
1155
1156 idles [w->active - 1] = idles [--idlecnt];
1157 ev_stop (EV_A_ (W)w);
1158}
1159
1160void
1161ev_prepare_start (EV_P_ struct ev_prepare *w)
1162{
1163 if (ev_is_active (w))
1164 return;
1165
1166 ev_start (EV_A_ (W)w, ++preparecnt);
1167 array_needsize (prepares, preparemax, preparecnt, );
1168 prepares [preparecnt - 1] = w;
1169}
1170
1171void
1172ev_prepare_stop (EV_P_ struct ev_prepare *w)
1173{
1174 ev_clear_pending (EV_A_ (W)w);
1175 if (ev_is_active (w))
1176 return;
1177
1178 prepares [w->active - 1] = prepares [--preparecnt];
1179 ev_stop (EV_A_ (W)w);
1180}
1181
1182void
1183ev_check_start (EV_P_ struct ev_check *w)
1184{
1185 if (ev_is_active (w))
1186 return;
1187
1188 ev_start (EV_A_ (W)w, ++checkcnt);
1189 array_needsize (checks, checkmax, checkcnt, );
1190 checks [checkcnt - 1] = w;
1191}
1192
1193void
1194ev_check_stop (EV_P_ struct ev_check *w)
1195{
1196 ev_clear_pending (EV_A_ (W)w);
1197 if (ev_is_active (w))
1198 return;
1199
1200 checks [w->active - 1] = checks [--checkcnt];
1201 ev_stop (EV_A_ (W)w);
1202}
1203
1204void
1205ev_child_start (EV_P_ struct ev_child *w) 1272ev_child_start (EV_P_ struct ev_child *w)
1206{ 1273{
1274#if EV_MULTIPLICITY
1275 assert (("child watchers are only supported in the default loop", loop == default_loop));
1276#endif
1207 if (ev_is_active (w)) 1277 if (ev_is_active (w))
1208 return; 1278 return;
1209 1279
1210 ev_start (EV_A_ (W)w, 1); 1280 ev_start (EV_A_ (W)w, 1);
1211 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1281 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1283 ev_timer_start (EV_A_ &once->to); 1353 ev_timer_start (EV_A_ &once->to);
1284 } 1354 }
1285 } 1355 }
1286} 1356}
1287 1357
1288/*****************************************************************************/
1289
1290#if 0
1291
1292struct ev_io wio;
1293
1294static void
1295sin_cb (struct ev_io *w, int revents)
1296{
1297 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1298}
1299
1300static void
1301ocb (struct ev_timer *w, int revents)
1302{
1303 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1304 ev_timer_stop (w);
1305 ev_timer_start (w);
1306}
1307
1308static void
1309scb (struct ev_signal *w, int revents)
1310{
1311 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1312 ev_io_stop (&wio);
1313 ev_io_start (&wio);
1314}
1315
1316static void
1317gcb (struct ev_signal *w, int revents)
1318{
1319 fprintf (stderr, "generic %x\n", revents);
1320
1321}
1322
1323int main (void)
1324{
1325 ev_init (0);
1326
1327 ev_io_init (&wio, sin_cb, 0, EV_READ);
1328 ev_io_start (&wio);
1329
1330 struct ev_timer t[10000];
1331
1332#if 0
1333 int i;
1334 for (i = 0; i < 10000; ++i)
1335 {
1336 struct ev_timer *w = t + i;
1337 ev_watcher_init (w, ocb, i);
1338 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1339 ev_timer_start (w);
1340 if (drand48 () < 0.5)
1341 ev_timer_stop (w);
1342 }
1343#endif
1344
1345 struct ev_timer t1;
1346 ev_timer_init (&t1, ocb, 5, 10);
1347 ev_timer_start (&t1);
1348
1349 struct ev_signal sig;
1350 ev_signal_init (&sig, scb, SIGQUIT);
1351 ev_signal_start (&sig);
1352
1353 struct ev_check cw;
1354 ev_check_init (&cw, gcb);
1355 ev_check_start (&cw);
1356
1357 struct ev_idle iw;
1358 ev_idle_init (&iw, gcb);
1359 ev_idle_start (&iw);
1360
1361 ev_loop (0);
1362
1363 return 0;
1364}
1365
1366#endif
1367
1368
1369
1370

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