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Comparing libev/ev.c (file contents):
Revision 1.202 by root, Sat Dec 29 16:19:36 2007 UTC vs.
Revision 1.233 by root, Tue May 6 23:34:16 2008 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
39 39
40#ifdef __cplusplus 40#ifdef __cplusplus
41extern "C" { 41extern "C" {
42#endif 42#endif
43 43
44/* this big block deduces configuration from config.h */
44#ifndef EV_STANDALONE 45#ifndef EV_STANDALONE
45# ifdef EV_CONFIG_H 46# ifdef EV_CONFIG_H
46# include EV_CONFIG_H 47# include EV_CONFIG_H
47# else 48# else
48# include "config.h" 49# include "config.h"
… …
118# else 119# else
119# define EV_USE_INOTIFY 0 120# define EV_USE_INOTIFY 0
120# endif 121# endif
121# endif 122# endif
122 123
124# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1
127# else
128# define EV_USE_EVENTFD 0
129# endif
130# endif
131
123#endif 132#endif
124 133
125#include <math.h> 134#include <math.h>
126#include <stdlib.h> 135#include <stdlib.h>
127#include <fcntl.h> 136#include <fcntl.h>
… …
152# ifndef EV_SELECT_IS_WINSOCKET 161# ifndef EV_SELECT_IS_WINSOCKET
153# define EV_SELECT_IS_WINSOCKET 1 162# define EV_SELECT_IS_WINSOCKET 1
154# endif 163# endif
155#endif 164#endif
156 165
157/**/ 166/* this block tries to deduce configuration from header-defined symbols and defaults */
158 167
159#ifndef EV_USE_MONOTONIC 168#ifndef EV_USE_MONOTONIC
160# define EV_USE_MONOTONIC 0 169# define EV_USE_MONOTONIC 0
161#endif 170#endif
162 171
… …
179# define EV_USE_POLL 1 188# define EV_USE_POLL 1
180# endif 189# endif
181#endif 190#endif
182 191
183#ifndef EV_USE_EPOLL 192#ifndef EV_USE_EPOLL
193# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
194# define EV_USE_EPOLL 1
195# else
184# define EV_USE_EPOLL 0 196# define EV_USE_EPOLL 0
197# endif
185#endif 198#endif
186 199
187#ifndef EV_USE_KQUEUE 200#ifndef EV_USE_KQUEUE
188# define EV_USE_KQUEUE 0 201# define EV_USE_KQUEUE 0
189#endif 202#endif
… …
191#ifndef EV_USE_PORT 204#ifndef EV_USE_PORT
192# define EV_USE_PORT 0 205# define EV_USE_PORT 0
193#endif 206#endif
194 207
195#ifndef EV_USE_INOTIFY 208#ifndef EV_USE_INOTIFY
209# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
210# define EV_USE_INOTIFY 1
211# else
196# define EV_USE_INOTIFY 0 212# define EV_USE_INOTIFY 0
213# endif
197#endif 214#endif
198 215
199#ifndef EV_PID_HASHSIZE 216#ifndef EV_PID_HASHSIZE
200# if EV_MINIMAL 217# if EV_MINIMAL
201# define EV_PID_HASHSIZE 1 218# define EV_PID_HASHSIZE 1
… …
210# else 227# else
211# define EV_INOTIFY_HASHSIZE 16 228# define EV_INOTIFY_HASHSIZE 16
212# endif 229# endif
213#endif 230#endif
214 231
215/**/ 232#ifndef EV_USE_EVENTFD
233# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
234# define EV_USE_EVENTFD 1
235# else
236# define EV_USE_EVENTFD 0
237# endif
238#endif
239
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */
216 241
217#ifndef CLOCK_MONOTONIC 242#ifndef CLOCK_MONOTONIC
218# undef EV_USE_MONOTONIC 243# undef EV_USE_MONOTONIC
219# define EV_USE_MONOTONIC 0 244# define EV_USE_MONOTONIC 0
220#endif 245#endif
… …
239# include <sys/inotify.h> 264# include <sys/inotify.h>
240#endif 265#endif
241 266
242#if EV_SELECT_IS_WINSOCKET 267#if EV_SELECT_IS_WINSOCKET
243# include <winsock.h> 268# include <winsock.h>
269#endif
270
271#if EV_USE_EVENTFD
272/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273# include <stdint.h>
274# ifdef __cplusplus
275extern "C" {
276# endif
277int eventfd (unsigned int initval, int flags);
278# ifdef __cplusplus
279}
280# endif
244#endif 281#endif
245 282
246/**/ 283/**/
247 284
248/* 285/*
… …
263# define expect(expr,value) __builtin_expect ((expr),(value)) 300# define expect(expr,value) __builtin_expect ((expr),(value))
264# define noinline __attribute__ ((noinline)) 301# define noinline __attribute__ ((noinline))
265#else 302#else
266# define expect(expr,value) (expr) 303# define expect(expr,value) (expr)
267# define noinline 304# define noinline
268# if __STDC_VERSION__ < 199901L 305# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
269# define inline 306# define inline
270# endif 307# endif
271#endif 308#endif
272 309
273#define expect_false(expr) expect ((expr) != 0, 0) 310#define expect_false(expr) expect ((expr) != 0, 0)
… …
288 325
289typedef ev_watcher *W; 326typedef ev_watcher *W;
290typedef ev_watcher_list *WL; 327typedef ev_watcher_list *WL;
291typedef ev_watcher_time *WT; 328typedef ev_watcher_time *WT;
292 329
330#define ev_active(w) ((W)(w))->active
331#define ev_at(w) ((WT)(w))->at
332
293#if EV_USE_MONOTONIC 333#if EV_USE_MONOTONIC
294/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 334/* sig_atomic_t is used to avoid per-thread variables or locking but still */
295/* giving it a reasonably high chance of working on typical architetcures */ 335/* giving it a reasonably high chance of working on typical architetcures */
296static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 336static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
297#endif 337#endif
298 338
299#ifdef _WIN32 339#ifdef _WIN32
300# include "ev_win32.c" 340# include "ev_win32.c"
301#endif 341#endif
… …
323 perror (msg); 363 perror (msg);
324 abort (); 364 abort ();
325 } 365 }
326} 366}
327 367
368static void *
369ev_realloc_emul (void *ptr, long size)
370{
371 /* some systems, notably openbsd and darwin, fail to properly
372 * implement realloc (x, 0) (as required by both ansi c-98 and
373 * the single unix specification, so work around them here.
374 */
375
376 if (size)
377 return realloc (ptr, size);
378
379 free (ptr);
380 return 0;
381}
382
328static void *(*alloc)(void *ptr, long size); 383static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
329 384
330void 385void
331ev_set_allocator (void *(*cb)(void *ptr, long size)) 386ev_set_allocator (void *(*cb)(void *ptr, long size))
332{ 387{
333 alloc = cb; 388 alloc = cb;
334} 389}
335 390
336inline_speed void * 391inline_speed void *
337ev_realloc (void *ptr, long size) 392ev_realloc (void *ptr, long size)
338{ 393{
339 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 394 ptr = alloc (ptr, size);
340 395
341 if (!ptr && size) 396 if (!ptr && size)
342 { 397 {
343 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 398 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
344 abort (); 399 abort ();
… …
451 ts.tv_sec = (time_t)delay; 506 ts.tv_sec = (time_t)delay;
452 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); 507 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
453 508
454 nanosleep (&ts, 0); 509 nanosleep (&ts, 0);
455#elif defined(_WIN32) 510#elif defined(_WIN32)
456 Sleep (delay * 1e3); 511 Sleep ((unsigned long)(delay * 1e3));
457#else 512#else
458 struct timeval tv; 513 struct timeval tv;
459 514
460 tv.tv_sec = (time_t)delay; 515 tv.tv_sec = (time_t)delay;
461 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 516 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
… …
464#endif 519#endif
465 } 520 }
466} 521}
467 522
468/*****************************************************************************/ 523/*****************************************************************************/
524
525#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
469 526
470int inline_size 527int inline_size
471array_nextsize (int elem, int cur, int cnt) 528array_nextsize (int elem, int cur, int cnt)
472{ 529{
473 int ncur = cur + 1; 530 int ncur = cur + 1;
474 531
475 do 532 do
476 ncur <<= 1; 533 ncur <<= 1;
477 while (cnt > ncur); 534 while (cnt > ncur);
478 535
479 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 536 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
480 if (elem * ncur > 4096) 537 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
481 { 538 {
482 ncur *= elem; 539 ncur *= elem;
483 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 540 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
484 ncur = ncur - sizeof (void *) * 4; 541 ncur = ncur - sizeof (void *) * 4;
485 ncur /= elem; 542 ncur /= elem;
486 } 543 }
487 544
488 return ncur; 545 return ncur;
… …
702 } 759 }
703} 760}
704 761
705/*****************************************************************************/ 762/*****************************************************************************/
706 763
764/* towards the root */
707void inline_speed 765void inline_speed
708upheap (WT *heap, int k) 766upheap (WT *heap, int k)
709{ 767{
710 WT w = heap [k]; 768 WT w = heap [k];
711 769
712 while (k) 770 for (;;)
713 { 771 {
714 int p = (k - 1) >> 1; 772 int p = k >> 1;
715 773
774 /* maybe we could use a dummy element at heap [0]? */
716 if (heap [p]->at <= w->at) 775 if (!p || heap [p]->at <= w->at)
717 break; 776 break;
718 777
719 heap [k] = heap [p]; 778 heap [k] = heap [p];
720 ((W)heap [k])->active = k + 1; 779 ev_active (heap [k]) = k;
721 k = p; 780 k = p;
722 } 781 }
723 782
724 heap [k] = w; 783 heap [k] = w;
725 ((W)heap [k])->active = k + 1; 784 ev_active (heap [k]) = k;
726} 785}
727 786
787/* away from the root */
728void inline_speed 788void inline_speed
729downheap (WT *heap, int N, int k) 789downheap (WT *heap, int N, int k)
730{ 790{
731 WT w = heap [k]; 791 WT w = heap [k];
732 792
733 for (;;) 793 for (;;)
734 { 794 {
735 int c = (k << 1) + 1; 795 int c = k << 1;
736 796
737 if (c >= N) 797 if (c > N)
738 break; 798 break;
739 799
740 c += c + 1 < N && heap [c]->at > heap [c + 1]->at 800 c += c < N && heap [c]->at > heap [c + 1]->at
741 ? 1 : 0; 801 ? 1 : 0;
742 802
743 if (w->at <= heap [c]->at) 803 if (w->at <= heap [c]->at)
744 break; 804 break;
745 805
746 heap [k] = heap [c]; 806 heap [k] = heap [c];
747 ((W)heap [k])->active = k + 1; 807 ev_active (heap [k]) = k;
748 808
749 k = c; 809 k = c;
750 } 810 }
751 811
752 heap [k] = w; 812 heap [k] = w;
753 ((W)heap [k])->active = k + 1; 813 ev_active (heap [k]) = k;
754} 814}
755 815
756void inline_size 816void inline_size
757adjustheap (WT *heap, int N, int k) 817adjustheap (WT *heap, int N, int k)
758{ 818{
… …
763/*****************************************************************************/ 823/*****************************************************************************/
764 824
765typedef struct 825typedef struct
766{ 826{
767 WL head; 827 WL head;
768 sig_atomic_t volatile gotsig; 828 EV_ATOMIC_T gotsig;
769} ANSIG; 829} ANSIG;
770 830
771static ANSIG *signals; 831static ANSIG *signals;
772static int signalmax; 832static int signalmax;
773 833
774static int sigpipe [2]; 834static EV_ATOMIC_T gotsig;
775static sig_atomic_t volatile gotsig;
776static ev_io sigev;
777 835
778void inline_size 836void inline_size
779signals_init (ANSIG *base, int count) 837signals_init (ANSIG *base, int count)
780{ 838{
781 while (count--) 839 while (count--)
… …
785 843
786 ++base; 844 ++base;
787 } 845 }
788} 846}
789 847
790static void 848/*****************************************************************************/
791sighandler (int signum)
792{
793#if _WIN32
794 signal (signum, sighandler);
795#endif
796
797 signals [signum - 1].gotsig = 1;
798
799 if (!gotsig)
800 {
801 int old_errno = errno;
802 gotsig = 1;
803 write (sigpipe [1], &signum, 1);
804 errno = old_errno;
805 }
806}
807
808void noinline
809ev_feed_signal_event (EV_P_ int signum)
810{
811 WL w;
812
813#if EV_MULTIPLICITY
814 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
815#endif
816
817 --signum;
818
819 if (signum < 0 || signum >= signalmax)
820 return;
821
822 signals [signum].gotsig = 0;
823
824 for (w = signals [signum].head; w; w = w->next)
825 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
826}
827
828static void
829sigcb (EV_P_ ev_io *iow, int revents)
830{
831 int signum;
832
833 read (sigpipe [0], &revents, 1);
834 gotsig = 0;
835
836 for (signum = signalmax; signum--; )
837 if (signals [signum].gotsig)
838 ev_feed_signal_event (EV_A_ signum + 1);
839}
840 849
841void inline_speed 850void inline_speed
842fd_intern (int fd) 851fd_intern (int fd)
843{ 852{
844#ifdef _WIN32 853#ifdef _WIN32
… …
849 fcntl (fd, F_SETFL, O_NONBLOCK); 858 fcntl (fd, F_SETFL, O_NONBLOCK);
850#endif 859#endif
851} 860}
852 861
853static void noinline 862static void noinline
854siginit (EV_P) 863evpipe_init (EV_P)
855{ 864{
865 if (!ev_is_active (&pipeev))
866 {
867#if EV_USE_EVENTFD
868 if ((evfd = eventfd (0, 0)) >= 0)
869 {
870 evpipe [0] = -1;
871 fd_intern (evfd);
872 ev_io_set (&pipeev, evfd, EV_READ);
873 }
874 else
875#endif
876 {
877 while (pipe (evpipe))
878 syserr ("(libev) error creating signal/async pipe");
879
856 fd_intern (sigpipe [0]); 880 fd_intern (evpipe [0]);
857 fd_intern (sigpipe [1]); 881 fd_intern (evpipe [1]);
882 ev_io_set (&pipeev, evpipe [0], EV_READ);
883 }
858 884
859 ev_io_set (&sigev, sigpipe [0], EV_READ);
860 ev_io_start (EV_A_ &sigev); 885 ev_io_start (EV_A_ &pipeev);
861 ev_unref (EV_A); /* child watcher should not keep loop alive */ 886 ev_unref (EV_A); /* watcher should not keep loop alive */
887 }
888}
889
890void inline_size
891evpipe_write (EV_P_ EV_ATOMIC_T *flag)
892{
893 if (!*flag)
894 {
895 int old_errno = errno; /* save errno because write might clobber it */
896
897 *flag = 1;
898
899#if EV_USE_EVENTFD
900 if (evfd >= 0)
901 {
902 uint64_t counter = 1;
903 write (evfd, &counter, sizeof (uint64_t));
904 }
905 else
906#endif
907 write (evpipe [1], &old_errno, 1);
908
909 errno = old_errno;
910 }
911}
912
913static void
914pipecb (EV_P_ ev_io *iow, int revents)
915{
916#if EV_USE_EVENTFD
917 if (evfd >= 0)
918 {
919 uint64_t counter;
920 read (evfd, &counter, sizeof (uint64_t));
921 }
922 else
923#endif
924 {
925 char dummy;
926 read (evpipe [0], &dummy, 1);
927 }
928
929 if (gotsig && ev_is_default_loop (EV_A))
930 {
931 int signum;
932 gotsig = 0;
933
934 for (signum = signalmax; signum--; )
935 if (signals [signum].gotsig)
936 ev_feed_signal_event (EV_A_ signum + 1);
937 }
938
939#if EV_ASYNC_ENABLE
940 if (gotasync)
941 {
942 int i;
943 gotasync = 0;
944
945 for (i = asynccnt; i--; )
946 if (asyncs [i]->sent)
947 {
948 asyncs [i]->sent = 0;
949 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
950 }
951 }
952#endif
862} 953}
863 954
864/*****************************************************************************/ 955/*****************************************************************************/
865 956
957static void
958ev_sighandler (int signum)
959{
960#if EV_MULTIPLICITY
961 struct ev_loop *loop = &default_loop_struct;
962#endif
963
964#if _WIN32
965 signal (signum, ev_sighandler);
966#endif
967
968 signals [signum - 1].gotsig = 1;
969 evpipe_write (EV_A_ &gotsig);
970}
971
972void noinline
973ev_feed_signal_event (EV_P_ int signum)
974{
975 WL w;
976
977#if EV_MULTIPLICITY
978 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
979#endif
980
981 --signum;
982
983 if (signum < 0 || signum >= signalmax)
984 return;
985
986 signals [signum].gotsig = 0;
987
988 for (w = signals [signum].head; w; w = w->next)
989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
990}
991
992/*****************************************************************************/
993
866static WL childs [EV_PID_HASHSIZE]; 994static WL childs [EV_PID_HASHSIZE];
867 995
868#ifndef _WIN32 996#ifndef _WIN32
869 997
870static ev_signal childev; 998static ev_signal childev;
871 999
1000#ifndef WIFCONTINUED
1001# define WIFCONTINUED(status) 0
1002#endif
1003
872void inline_speed 1004void inline_speed
873child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 1005child_reap (EV_P_ int chain, int pid, int status)
874{ 1006{
875 ev_child *w; 1007 ev_child *w;
1008 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
876 1009
877 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1010 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1011 {
878 if (w->pid == pid || !w->pid) 1012 if ((w->pid == pid || !w->pid)
1013 && (!traced || (w->flags & 1)))
879 { 1014 {
880 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ 1015 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
881 w->rpid = pid; 1016 w->rpid = pid;
882 w->rstatus = status; 1017 w->rstatus = status;
883 ev_feed_event (EV_A_ (W)w, EV_CHILD); 1018 ev_feed_event (EV_A_ (W)w, EV_CHILD);
884 } 1019 }
1020 }
885} 1021}
886 1022
887#ifndef WCONTINUED 1023#ifndef WCONTINUED
888# define WCONTINUED 0 1024# define WCONTINUED 0
889#endif 1025#endif
… …
898 if (!WCONTINUED 1034 if (!WCONTINUED
899 || errno != EINVAL 1035 || errno != EINVAL
900 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 1036 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
901 return; 1037 return;
902 1038
903 /* make sure we are called again until all childs have been reaped */ 1039 /* make sure we are called again until all children have been reaped */
904 /* we need to do it this way so that the callback gets called before we continue */ 1040 /* we need to do it this way so that the callback gets called before we continue */
905 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1041 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
906 1042
907 child_reap (EV_A_ sw, pid, pid, status); 1043 child_reap (EV_A_ pid, pid, status);
908 if (EV_PID_HASHSIZE > 1) 1044 if (EV_PID_HASHSIZE > 1)
909 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1045 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
910} 1046}
911 1047
912#endif 1048#endif
913 1049
914/*****************************************************************************/ 1050/*****************************************************************************/
… …
1032 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1168 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1033 have_monotonic = 1; 1169 have_monotonic = 1;
1034 } 1170 }
1035#endif 1171#endif
1036 1172
1037 ev_rt_now = ev_time (); 1173 ev_rt_now = ev_time ();
1038 mn_now = get_clock (); 1174 mn_now = get_clock ();
1039 now_floor = mn_now; 1175 now_floor = mn_now;
1040 rtmn_diff = ev_rt_now - mn_now; 1176 rtmn_diff = ev_rt_now - mn_now;
1041 1177
1042 io_blocktime = 0.; 1178 io_blocktime = 0.;
1043 timeout_blocktime = 0.; 1179 timeout_blocktime = 0.;
1180 backend = 0;
1181 backend_fd = -1;
1182 gotasync = 0;
1183#if EV_USE_INOTIFY
1184 fs_fd = -2;
1185#endif
1044 1186
1045 /* pid check not overridable via env */ 1187 /* pid check not overridable via env */
1046#ifndef _WIN32 1188#ifndef _WIN32
1047 if (flags & EVFLAG_FORKCHECK) 1189 if (flags & EVFLAG_FORKCHECK)
1048 curpid = getpid (); 1190 curpid = getpid ();
… …
1051 if (!(flags & EVFLAG_NOENV) 1193 if (!(flags & EVFLAG_NOENV)
1052 && !enable_secure () 1194 && !enable_secure ()
1053 && getenv ("LIBEV_FLAGS")) 1195 && getenv ("LIBEV_FLAGS"))
1054 flags = atoi (getenv ("LIBEV_FLAGS")); 1196 flags = atoi (getenv ("LIBEV_FLAGS"));
1055 1197
1056 if (!(flags & 0x0000ffffUL)) 1198 if (!(flags & 0x0000ffffU))
1057 flags |= ev_recommended_backends (); 1199 flags |= ev_recommended_backends ();
1058
1059 backend = 0;
1060 backend_fd = -1;
1061#if EV_USE_INOTIFY
1062 fs_fd = -2;
1063#endif
1064 1200
1065#if EV_USE_PORT 1201#if EV_USE_PORT
1066 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1202 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1067#endif 1203#endif
1068#if EV_USE_KQUEUE 1204#if EV_USE_KQUEUE
… …
1076#endif 1212#endif
1077#if EV_USE_SELECT 1213#if EV_USE_SELECT
1078 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1214 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1079#endif 1215#endif
1080 1216
1081 ev_init (&sigev, sigcb); 1217 ev_init (&pipeev, pipecb);
1082 ev_set_priority (&sigev, EV_MAXPRI); 1218 ev_set_priority (&pipeev, EV_MAXPRI);
1083 } 1219 }
1084} 1220}
1085 1221
1086static void noinline 1222static void noinline
1087loop_destroy (EV_P) 1223loop_destroy (EV_P)
1088{ 1224{
1089 int i; 1225 int i;
1226
1227 if (ev_is_active (&pipeev))
1228 {
1229 ev_ref (EV_A); /* signal watcher */
1230 ev_io_stop (EV_A_ &pipeev);
1231
1232#if EV_USE_EVENTFD
1233 if (evfd >= 0)
1234 close (evfd);
1235#endif
1236
1237 if (evpipe [0] >= 0)
1238 {
1239 close (evpipe [0]);
1240 close (evpipe [1]);
1241 }
1242 }
1090 1243
1091#if EV_USE_INOTIFY 1244#if EV_USE_INOTIFY
1092 if (fs_fd >= 0) 1245 if (fs_fd >= 0)
1093 close (fs_fd); 1246 close (fs_fd);
1094#endif 1247#endif
… …
1131#if EV_FORK_ENABLE 1284#if EV_FORK_ENABLE
1132 array_free (fork, EMPTY); 1285 array_free (fork, EMPTY);
1133#endif 1286#endif
1134 array_free (prepare, EMPTY); 1287 array_free (prepare, EMPTY);
1135 array_free (check, EMPTY); 1288 array_free (check, EMPTY);
1289#if EV_ASYNC_ENABLE
1290 array_free (async, EMPTY);
1291#endif
1136 1292
1137 backend = 0; 1293 backend = 0;
1138} 1294}
1139 1295
1296#if EV_USE_INOTIFY
1140void inline_size infy_fork (EV_P); 1297void inline_size infy_fork (EV_P);
1298#endif
1141 1299
1142void inline_size 1300void inline_size
1143loop_fork (EV_P) 1301loop_fork (EV_P)
1144{ 1302{
1145#if EV_USE_PORT 1303#if EV_USE_PORT
… …
1153#endif 1311#endif
1154#if EV_USE_INOTIFY 1312#if EV_USE_INOTIFY
1155 infy_fork (EV_A); 1313 infy_fork (EV_A);
1156#endif 1314#endif
1157 1315
1158 if (ev_is_active (&sigev)) 1316 if (ev_is_active (&pipeev))
1159 { 1317 {
1160 /* default loop */ 1318 /* this "locks" the handlers against writing to the pipe */
1319 /* while we modify the fd vars */
1320 gotsig = 1;
1321#if EV_ASYNC_ENABLE
1322 gotasync = 1;
1323#endif
1161 1324
1162 ev_ref (EV_A); 1325 ev_ref (EV_A);
1163 ev_io_stop (EV_A_ &sigev); 1326 ev_io_stop (EV_A_ &pipeev);
1327
1328#if EV_USE_EVENTFD
1329 if (evfd >= 0)
1330 close (evfd);
1331#endif
1332
1333 if (evpipe [0] >= 0)
1334 {
1164 close (sigpipe [0]); 1335 close (evpipe [0]);
1165 close (sigpipe [1]); 1336 close (evpipe [1]);
1337 }
1166 1338
1167 while (pipe (sigpipe))
1168 syserr ("(libev) error creating pipe");
1169
1170 siginit (EV_A); 1339 evpipe_init (EV_A);
1340 /* now iterate over everything, in case we missed something */
1341 pipecb (EV_A_ &pipeev, EV_READ);
1171 } 1342 }
1172 1343
1173 postfork = 0; 1344 postfork = 0;
1174} 1345}
1175 1346
… …
1197} 1368}
1198 1369
1199void 1370void
1200ev_loop_fork (EV_P) 1371ev_loop_fork (EV_P)
1201{ 1372{
1202 postfork = 1; 1373 postfork = 1; /* must be in line with ev_default_fork */
1203} 1374}
1204 1375
1205#endif 1376#endif
1206 1377
1207#if EV_MULTIPLICITY 1378#if EV_MULTIPLICITY
… …
1210#else 1381#else
1211int 1382int
1212ev_default_loop (unsigned int flags) 1383ev_default_loop (unsigned int flags)
1213#endif 1384#endif
1214{ 1385{
1215 if (sigpipe [0] == sigpipe [1])
1216 if (pipe (sigpipe))
1217 return 0;
1218
1219 if (!ev_default_loop_ptr) 1386 if (!ev_default_loop_ptr)
1220 { 1387 {
1221#if EV_MULTIPLICITY 1388#if EV_MULTIPLICITY
1222 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1389 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1223#else 1390#else
… …
1226 1393
1227 loop_init (EV_A_ flags); 1394 loop_init (EV_A_ flags);
1228 1395
1229 if (ev_backend (EV_A)) 1396 if (ev_backend (EV_A))
1230 { 1397 {
1231 siginit (EV_A);
1232
1233#ifndef _WIN32 1398#ifndef _WIN32
1234 ev_signal_init (&childev, childcb, SIGCHLD); 1399 ev_signal_init (&childev, childcb, SIGCHLD);
1235 ev_set_priority (&childev, EV_MAXPRI); 1400 ev_set_priority (&childev, EV_MAXPRI);
1236 ev_signal_start (EV_A_ &childev); 1401 ev_signal_start (EV_A_ &childev);
1237 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1402 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1254#ifndef _WIN32 1419#ifndef _WIN32
1255 ev_ref (EV_A); /* child watcher */ 1420 ev_ref (EV_A); /* child watcher */
1256 ev_signal_stop (EV_A_ &childev); 1421 ev_signal_stop (EV_A_ &childev);
1257#endif 1422#endif
1258 1423
1259 ev_ref (EV_A); /* signal watcher */
1260 ev_io_stop (EV_A_ &sigev);
1261
1262 close (sigpipe [0]); sigpipe [0] = 0;
1263 close (sigpipe [1]); sigpipe [1] = 0;
1264
1265 loop_destroy (EV_A); 1424 loop_destroy (EV_A);
1266} 1425}
1267 1426
1268void 1427void
1269ev_default_fork (void) 1428ev_default_fork (void)
… …
1271#if EV_MULTIPLICITY 1430#if EV_MULTIPLICITY
1272 struct ev_loop *loop = ev_default_loop_ptr; 1431 struct ev_loop *loop = ev_default_loop_ptr;
1273#endif 1432#endif
1274 1433
1275 if (backend) 1434 if (backend)
1276 postfork = 1; 1435 postfork = 1; /* must be in line with ev_loop_fork */
1277} 1436}
1278 1437
1279/*****************************************************************************/ 1438/*****************************************************************************/
1280 1439
1281void 1440void
… …
1305} 1464}
1306 1465
1307void inline_size 1466void inline_size
1308timers_reify (EV_P) 1467timers_reify (EV_P)
1309{ 1468{
1310 while (timercnt && ((WT)timers [0])->at <= mn_now) 1469 while (timercnt && ev_at (timers [1]) <= mn_now)
1311 { 1470 {
1312 ev_timer *w = (ev_timer *)timers [0]; 1471 ev_timer *w = (ev_timer *)timers [1];
1313 1472
1314 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ 1473 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1315 1474
1316 /* first reschedule or stop timer */ 1475 /* first reschedule or stop timer */
1317 if (w->repeat) 1476 if (w->repeat)
1318 { 1477 {
1319 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1478 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1320 1479
1321 ((WT)w)->at += w->repeat; 1480 ev_at (w) += w->repeat;
1322 if (((WT)w)->at < mn_now) 1481 if (ev_at (w) < mn_now)
1323 ((WT)w)->at = mn_now; 1482 ev_at (w) = mn_now;
1324 1483
1325 downheap (timers, timercnt, 0); 1484 downheap (timers, timercnt, 1);
1326 } 1485 }
1327 else 1486 else
1328 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1487 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1329 1488
1330 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1489 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1333 1492
1334#if EV_PERIODIC_ENABLE 1493#if EV_PERIODIC_ENABLE
1335void inline_size 1494void inline_size
1336periodics_reify (EV_P) 1495periodics_reify (EV_P)
1337{ 1496{
1338 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1497 while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1339 { 1498 {
1340 ev_periodic *w = (ev_periodic *)periodics [0]; 1499 ev_periodic *w = (ev_periodic *)periodics [1];
1341 1500
1342 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1501 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1343 1502
1344 /* first reschedule or stop timer */ 1503 /* first reschedule or stop timer */
1345 if (w->reschedule_cb) 1504 if (w->reschedule_cb)
1346 { 1505 {
1347 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); 1506 ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1348 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1507 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1349 downheap (periodics, periodiccnt, 0); 1508 downheap (periodics, periodiccnt, 1);
1350 } 1509 }
1351 else if (w->interval) 1510 else if (w->interval)
1352 { 1511 {
1353 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1512 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1354 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; 1513 if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1355 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1514 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1356 downheap (periodics, periodiccnt, 0); 1515 downheap (periodics, periodiccnt, 1);
1357 } 1516 }
1358 else 1517 else
1359 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1518 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1360 1519
1361 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1520 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1366periodics_reschedule (EV_P) 1525periodics_reschedule (EV_P)
1367{ 1526{
1368 int i; 1527 int i;
1369 1528
1370 /* adjust periodics after time jump */ 1529 /* adjust periodics after time jump */
1371 for (i = 0; i < periodiccnt; ++i) 1530 for (i = 1; i <= periodiccnt; ++i)
1372 { 1531 {
1373 ev_periodic *w = (ev_periodic *)periodics [i]; 1532 ev_periodic *w = (ev_periodic *)periodics [i];
1374 1533
1375 if (w->reschedule_cb) 1534 if (w->reschedule_cb)
1376 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1535 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1377 else if (w->interval) 1536 else if (w->interval)
1378 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1537 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1379 } 1538 }
1380 1539
1381 /* now rebuild the heap */ 1540 /* now rebuild the heap */
1382 for (i = periodiccnt >> 1; i--; ) 1541 for (i = periodiccnt >> 1; i--; )
1383 downheap (periodics, periodiccnt, i); 1542 downheap (periodics, periodiccnt, i);
… …
1465 { 1624 {
1466#if EV_PERIODIC_ENABLE 1625#if EV_PERIODIC_ENABLE
1467 periodics_reschedule (EV_A); 1626 periodics_reschedule (EV_A);
1468#endif 1627#endif
1469 /* adjust timers. this is easy, as the offset is the same for all of them */ 1628 /* adjust timers. this is easy, as the offset is the same for all of them */
1470 for (i = 0; i < timercnt; ++i) 1629 for (i = 1; i <= timercnt; ++i)
1471 ((WT)timers [i])->at += ev_rt_now - mn_now; 1630 ev_at (timers [i]) += ev_rt_now - mn_now;
1472 } 1631 }
1473 1632
1474 mn_now = ev_rt_now; 1633 mn_now = ev_rt_now;
1475 } 1634 }
1476} 1635}
… …
1490static int loop_done; 1649static int loop_done;
1491 1650
1492void 1651void
1493ev_loop (EV_P_ int flags) 1652ev_loop (EV_P_ int flags)
1494{ 1653{
1495 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1654 loop_done = EVUNLOOP_CANCEL;
1496 ? EVUNLOOP_ONE
1497 : EVUNLOOP_CANCEL;
1498 1655
1499 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 1656 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1500 1657
1501 do 1658 do
1502 { 1659 {
… …
1548 1705
1549 waittime = MAX_BLOCKTIME; 1706 waittime = MAX_BLOCKTIME;
1550 1707
1551 if (timercnt) 1708 if (timercnt)
1552 { 1709 {
1553 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1710 ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1554 if (waittime > to) waittime = to; 1711 if (waittime > to) waittime = to;
1555 } 1712 }
1556 1713
1557#if EV_PERIODIC_ENABLE 1714#if EV_PERIODIC_ENABLE
1558 if (periodiccnt) 1715 if (periodiccnt)
1559 { 1716 {
1560 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1717 ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;
1561 if (waittime > to) waittime = to; 1718 if (waittime > to) waittime = to;
1562 } 1719 }
1563#endif 1720#endif
1564 1721
1565 if (expect_false (waittime < timeout_blocktime)) 1722 if (expect_false (waittime < timeout_blocktime))
… …
1598 /* queue check watchers, to be executed first */ 1755 /* queue check watchers, to be executed first */
1599 if (expect_false (checkcnt)) 1756 if (expect_false (checkcnt))
1600 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1757 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1601 1758
1602 call_pending (EV_A); 1759 call_pending (EV_A);
1603
1604 } 1760 }
1605 while (expect_true (activecnt && !loop_done)); 1761 while (expect_true (
1762 activecnt
1763 && !loop_done
1764 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1765 ));
1606 1766
1607 if (loop_done == EVUNLOOP_ONE) 1767 if (loop_done == EVUNLOOP_ONE)
1608 loop_done = EVUNLOOP_CANCEL; 1768 loop_done = EVUNLOOP_CANCEL;
1609} 1769}
1610 1770
… …
1728ev_timer_start (EV_P_ ev_timer *w) 1888ev_timer_start (EV_P_ ev_timer *w)
1729{ 1889{
1730 if (expect_false (ev_is_active (w))) 1890 if (expect_false (ev_is_active (w)))
1731 return; 1891 return;
1732 1892
1733 ((WT)w)->at += mn_now; 1893 ev_at (w) += mn_now;
1734 1894
1735 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1895 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1736 1896
1737 ev_start (EV_A_ (W)w, ++timercnt); 1897 ev_start (EV_A_ (W)w, ++timercnt);
1738 array_needsize (WT, timers, timermax, timercnt, EMPTY2); 1898 array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1739 timers [timercnt - 1] = (WT)w; 1899 timers [timercnt] = (WT)w;
1740 upheap (timers, timercnt - 1); 1900 upheap (timers, timercnt);
1741 1901
1742 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1902 /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/
1743} 1903}
1744 1904
1745void noinline 1905void noinline
1746ev_timer_stop (EV_P_ ev_timer *w) 1906ev_timer_stop (EV_P_ ev_timer *w)
1747{ 1907{
1748 clear_pending (EV_A_ (W)w); 1908 clear_pending (EV_A_ (W)w);
1749 if (expect_false (!ev_is_active (w))) 1909 if (expect_false (!ev_is_active (w)))
1750 return; 1910 return;
1751 1911
1752 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1753
1754 { 1912 {
1755 int active = ((W)w)->active; 1913 int active = ev_active (w);
1756 1914
1915 assert (("internal timer heap corruption", timers [active] == (WT)w));
1916
1757 if (expect_true (--active < --timercnt)) 1917 if (expect_true (active < timercnt))
1758 { 1918 {
1759 timers [active] = timers [timercnt]; 1919 timers [active] = timers [timercnt];
1760 adjustheap (timers, timercnt, active); 1920 adjustheap (timers, timercnt, active);
1761 } 1921 }
1922
1923 --timercnt;
1762 } 1924 }
1763 1925
1764 ((WT)w)->at -= mn_now; 1926 ev_at (w) -= mn_now;
1765 1927
1766 ev_stop (EV_A_ (W)w); 1928 ev_stop (EV_A_ (W)w);
1767} 1929}
1768 1930
1769void noinline 1931void noinline
… …
1771{ 1933{
1772 if (ev_is_active (w)) 1934 if (ev_is_active (w))
1773 { 1935 {
1774 if (w->repeat) 1936 if (w->repeat)
1775 { 1937 {
1776 ((WT)w)->at = mn_now + w->repeat; 1938 ev_at (w) = mn_now + w->repeat;
1777 adjustheap (timers, timercnt, ((W)w)->active - 1); 1939 adjustheap (timers, timercnt, ev_active (w));
1778 } 1940 }
1779 else 1941 else
1780 ev_timer_stop (EV_A_ w); 1942 ev_timer_stop (EV_A_ w);
1781 } 1943 }
1782 else if (w->repeat) 1944 else if (w->repeat)
1783 { 1945 {
1784 w->at = w->repeat; 1946 ev_at (w) = w->repeat;
1785 ev_timer_start (EV_A_ w); 1947 ev_timer_start (EV_A_ w);
1786 } 1948 }
1787} 1949}
1788 1950
1789#if EV_PERIODIC_ENABLE 1951#if EV_PERIODIC_ENABLE
… …
1792{ 1954{
1793 if (expect_false (ev_is_active (w))) 1955 if (expect_false (ev_is_active (w)))
1794 return; 1956 return;
1795 1957
1796 if (w->reschedule_cb) 1958 if (w->reschedule_cb)
1797 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1959 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1798 else if (w->interval) 1960 else if (w->interval)
1799 { 1961 {
1800 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1962 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1801 /* this formula differs from the one in periodic_reify because we do not always round up */ 1963 /* this formula differs from the one in periodic_reify because we do not always round up */
1802 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1964 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1803 } 1965 }
1804 else 1966 else
1805 ((WT)w)->at = w->offset; 1967 ev_at (w) = w->offset;
1806 1968
1807 ev_start (EV_A_ (W)w, ++periodiccnt); 1969 ev_start (EV_A_ (W)w, ++periodiccnt);
1808 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); 1970 array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1809 periodics [periodiccnt - 1] = (WT)w; 1971 periodics [periodiccnt] = (WT)w;
1810 upheap (periodics, periodiccnt - 1); 1972 upheap (periodics, periodiccnt);
1811 1973
1812 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 1974 /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/
1813} 1975}
1814 1976
1815void noinline 1977void noinline
1816ev_periodic_stop (EV_P_ ev_periodic *w) 1978ev_periodic_stop (EV_P_ ev_periodic *w)
1817{ 1979{
1818 clear_pending (EV_A_ (W)w); 1980 clear_pending (EV_A_ (W)w);
1819 if (expect_false (!ev_is_active (w))) 1981 if (expect_false (!ev_is_active (w)))
1820 return; 1982 return;
1821 1983
1822 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1823
1824 { 1984 {
1825 int active = ((W)w)->active; 1985 int active = ev_active (w);
1826 1986
1987 assert (("internal periodic heap corruption", periodics [active] == (WT)w));
1988
1827 if (expect_true (--active < --periodiccnt)) 1989 if (expect_true (active < periodiccnt))
1828 { 1990 {
1829 periodics [active] = periodics [periodiccnt]; 1991 periodics [active] = periodics [periodiccnt];
1830 adjustheap (periodics, periodiccnt, active); 1992 adjustheap (periodics, periodiccnt, active);
1831 } 1993 }
1994
1995 --periodiccnt;
1832 } 1996 }
1833 1997
1834 ev_stop (EV_A_ (W)w); 1998 ev_stop (EV_A_ (W)w);
1835} 1999}
1836 2000
… …
1855#endif 2019#endif
1856 if (expect_false (ev_is_active (w))) 2020 if (expect_false (ev_is_active (w)))
1857 return; 2021 return;
1858 2022
1859 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2023 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2024
2025 evpipe_init (EV_A);
1860 2026
1861 { 2027 {
1862#ifndef _WIN32 2028#ifndef _WIN32
1863 sigset_t full, prev; 2029 sigset_t full, prev;
1864 sigfillset (&full); 2030 sigfillset (&full);
… …
1876 wlist_add (&signals [w->signum - 1].head, (WL)w); 2042 wlist_add (&signals [w->signum - 1].head, (WL)w);
1877 2043
1878 if (!((WL)w)->next) 2044 if (!((WL)w)->next)
1879 { 2045 {
1880#if _WIN32 2046#if _WIN32
1881 signal (w->signum, sighandler); 2047 signal (w->signum, ev_sighandler);
1882#else 2048#else
1883 struct sigaction sa; 2049 struct sigaction sa;
1884 sa.sa_handler = sighandler; 2050 sa.sa_handler = ev_sighandler;
1885 sigfillset (&sa.sa_mask); 2051 sigfillset (&sa.sa_mask);
1886 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2052 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1887 sigaction (w->signum, &sa, 0); 2053 sigaction (w->signum, &sa, 0);
1888#endif 2054#endif
1889 } 2055 }
… …
1950 if (w->wd < 0) 2116 if (w->wd < 0)
1951 { 2117 {
1952 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2118 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1953 2119
1954 /* monitor some parent directory for speedup hints */ 2120 /* monitor some parent directory for speedup hints */
2121 /* note that exceeding the hardcoded limit is not a correctness issue, */
2122 /* but an efficiency issue only */
1955 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2123 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1956 { 2124 {
1957 char path [4096]; 2125 char path [4096];
1958 strcpy (path, w->path); 2126 strcpy (path, w->path);
1959 2127
… …
2204 clear_pending (EV_A_ (W)w); 2372 clear_pending (EV_A_ (W)w);
2205 if (expect_false (!ev_is_active (w))) 2373 if (expect_false (!ev_is_active (w)))
2206 return; 2374 return;
2207 2375
2208 { 2376 {
2209 int active = ((W)w)->active; 2377 int active = ev_active (w);
2210 2378
2211 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 2379 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2212 ((W)idles [ABSPRI (w)][active - 1])->active = active; 2380 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2213 2381
2214 ev_stop (EV_A_ (W)w); 2382 ev_stop (EV_A_ (W)w);
2215 --idleall; 2383 --idleall;
2216 } 2384 }
2217} 2385}
… …
2234 clear_pending (EV_A_ (W)w); 2402 clear_pending (EV_A_ (W)w);
2235 if (expect_false (!ev_is_active (w))) 2403 if (expect_false (!ev_is_active (w)))
2236 return; 2404 return;
2237 2405
2238 { 2406 {
2239 int active = ((W)w)->active; 2407 int active = ev_active (w);
2408
2240 prepares [active - 1] = prepares [--preparecnt]; 2409 prepares [active - 1] = prepares [--preparecnt];
2241 ((W)prepares [active - 1])->active = active; 2410 ev_active (prepares [active - 1]) = active;
2242 } 2411 }
2243 2412
2244 ev_stop (EV_A_ (W)w); 2413 ev_stop (EV_A_ (W)w);
2245} 2414}
2246 2415
… …
2261 clear_pending (EV_A_ (W)w); 2430 clear_pending (EV_A_ (W)w);
2262 if (expect_false (!ev_is_active (w))) 2431 if (expect_false (!ev_is_active (w)))
2263 return; 2432 return;
2264 2433
2265 { 2434 {
2266 int active = ((W)w)->active; 2435 int active = ev_active (w);
2436
2267 checks [active - 1] = checks [--checkcnt]; 2437 checks [active - 1] = checks [--checkcnt];
2268 ((W)checks [active - 1])->active = active; 2438 ev_active (checks [active - 1]) = active;
2269 } 2439 }
2270 2440
2271 ev_stop (EV_A_ (W)w); 2441 ev_stop (EV_A_ (W)w);
2272} 2442}
2273 2443
… …
2369 clear_pending (EV_A_ (W)w); 2539 clear_pending (EV_A_ (W)w);
2370 if (expect_false (!ev_is_active (w))) 2540 if (expect_false (!ev_is_active (w)))
2371 return; 2541 return;
2372 2542
2373 { 2543 {
2374 int active = ((W)w)->active; 2544 int active = ev_active (w);
2545
2375 forks [active - 1] = forks [--forkcnt]; 2546 forks [active - 1] = forks [--forkcnt];
2376 ((W)forks [active - 1])->active = active; 2547 ev_active (forks [active - 1]) = active;
2377 } 2548 }
2378 2549
2379 ev_stop (EV_A_ (W)w); 2550 ev_stop (EV_A_ (W)w);
2551}
2552#endif
2553
2554#if EV_ASYNC_ENABLE
2555void
2556ev_async_start (EV_P_ ev_async *w)
2557{
2558 if (expect_false (ev_is_active (w)))
2559 return;
2560
2561 evpipe_init (EV_A);
2562
2563 ev_start (EV_A_ (W)w, ++asynccnt);
2564 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2565 asyncs [asynccnt - 1] = w;
2566}
2567
2568void
2569ev_async_stop (EV_P_ ev_async *w)
2570{
2571 clear_pending (EV_A_ (W)w);
2572 if (expect_false (!ev_is_active (w)))
2573 return;
2574
2575 {
2576 int active = ev_active (w);
2577
2578 asyncs [active - 1] = asyncs [--asynccnt];
2579 ev_active (asyncs [active - 1]) = active;
2580 }
2581
2582 ev_stop (EV_A_ (W)w);
2583}
2584
2585void
2586ev_async_send (EV_P_ ev_async *w)
2587{
2588 w->sent = 1;
2589 evpipe_write (EV_A_ &gotasync);
2380} 2590}
2381#endif 2591#endif
2382 2592
2383/*****************************************************************************/ 2593/*****************************************************************************/
2384 2594

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