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Comparing libev/ev.c (file contents):
Revision 1.198 by root, Sun Dec 23 04:45:51 2007 UTC vs.
Revision 1.229 by root, Fri May 2 08:08:45 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 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * modification, are permitted provided that the following conditions are 8 * tion, are permitted provided that the following conditions are met:
9 * met: 9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
10 * 27 *
11 * * Redistributions of source code must retain the above copyright 28 * Alternatively, the contents of this file may be used under the terms of
12 * notice, this list of conditions and the following disclaimer. 29 * the GNU General Public License ("GPL") version 2 or any later version,
13 * 30 * in which case the provisions of the GPL are applicable instead of
14 * * Redistributions in binary form must reproduce the above 31 * the above. If you wish to allow the use of your version of this file
15 * copyright notice, this list of conditions and the following 32 * only under the terms of the GPL and not to allow others to use your
16 * disclaimer in the documentation and/or other materials provided 33 * version of this file under the BSD license, indicate your decision
17 * with the distribution. 34 * by deleting the provisions above and replace them with the notice
18 * 35 * and other provisions required by the GPL. If you do not delete the
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 * provisions above, a recipient may use your version of this file under
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 * either the BSD or the GPL.
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
30 */ 38 */
31 39
32#ifdef __cplusplus 40#ifdef __cplusplus
33extern "C" { 41extern "C" {
34#endif 42#endif
35 43
44/* this big block deduces configuration from config.h */
36#ifndef EV_STANDALONE 45#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H 46# ifdef EV_CONFIG_H
38# include EV_CONFIG_H 47# include EV_CONFIG_H
39# else 48# else
40# include "config.h" 49# include "config.h"
… …
110# else 119# else
111# define EV_USE_INOTIFY 0 120# define EV_USE_INOTIFY 0
112# endif 121# endif
113# endif 122# endif
114 123
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
115#endif 132#endif
116 133
117#include <math.h> 134#include <math.h>
118#include <stdlib.h> 135#include <stdlib.h>
119#include <fcntl.h> 136#include <fcntl.h>
… …
144# ifndef EV_SELECT_IS_WINSOCKET 161# ifndef EV_SELECT_IS_WINSOCKET
145# define EV_SELECT_IS_WINSOCKET 1 162# define EV_SELECT_IS_WINSOCKET 1
146# endif 163# endif
147#endif 164#endif
148 165
149/**/ 166/* this block tries to deduce configuration from header-defined symbols and defaults */
150 167
151#ifndef EV_USE_MONOTONIC 168#ifndef EV_USE_MONOTONIC
152# define EV_USE_MONOTONIC 0 169# define EV_USE_MONOTONIC 0
153#endif 170#endif
154 171
… …
171# define EV_USE_POLL 1 188# define EV_USE_POLL 1
172# endif 189# endif
173#endif 190#endif
174 191
175#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
176# define EV_USE_EPOLL 0 196# define EV_USE_EPOLL 0
197# endif
177#endif 198#endif
178 199
179#ifndef EV_USE_KQUEUE 200#ifndef EV_USE_KQUEUE
180# define EV_USE_KQUEUE 0 201# define EV_USE_KQUEUE 0
181#endif 202#endif
… …
183#ifndef EV_USE_PORT 204#ifndef EV_USE_PORT
184# define EV_USE_PORT 0 205# define EV_USE_PORT 0
185#endif 206#endif
186 207
187#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
188# define EV_USE_INOTIFY 0 212# define EV_USE_INOTIFY 0
213# endif
189#endif 214#endif
190 215
191#ifndef EV_PID_HASHSIZE 216#ifndef EV_PID_HASHSIZE
192# if EV_MINIMAL 217# if EV_MINIMAL
193# define EV_PID_HASHSIZE 1 218# define EV_PID_HASHSIZE 1
… …
202# else 227# else
203# define EV_INOTIFY_HASHSIZE 16 228# define EV_INOTIFY_HASHSIZE 16
204# endif 229# endif
205#endif 230#endif
206 231
207/**/ 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 */
208 241
209#ifndef CLOCK_MONOTONIC 242#ifndef CLOCK_MONOTONIC
210# undef EV_USE_MONOTONIC 243# undef EV_USE_MONOTONIC
211# define EV_USE_MONOTONIC 0 244# define EV_USE_MONOTONIC 0
212#endif 245#endif
… …
231# include <sys/inotify.h> 264# include <sys/inotify.h>
232#endif 265#endif
233 266
234#if EV_SELECT_IS_WINSOCKET 267#if EV_SELECT_IS_WINSOCKET
235# 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
236#endif 281#endif
237 282
238/**/ 283/**/
239 284
240/* 285/*
… …
255# define expect(expr,value) __builtin_expect ((expr),(value)) 300# define expect(expr,value) __builtin_expect ((expr),(value))
256# define noinline __attribute__ ((noinline)) 301# define noinline __attribute__ ((noinline))
257#else 302#else
258# define expect(expr,value) (expr) 303# define expect(expr,value) (expr)
259# define noinline 304# define noinline
260# if __STDC_VERSION__ < 199901L 305# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
261# define inline 306# define inline
262# endif 307# endif
263#endif 308#endif
264 309
265#define expect_false(expr) expect ((expr) != 0, 0) 310#define expect_false(expr) expect ((expr) != 0, 0)
… …
280 325
281typedef ev_watcher *W; 326typedef ev_watcher *W;
282typedef ev_watcher_list *WL; 327typedef ev_watcher_list *WL;
283typedef ev_watcher_time *WT; 328typedef ev_watcher_time *WT;
284 329
330#define ev_active(w) ((W)(w))->active
331#define ev_at(w) ((WT)(w))->at
332
285#if EV_USE_MONOTONIC 333#if EV_USE_MONOTONIC
286/* 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 */
287/* giving it a reasonably high chance of working on typical architetcures */ 335/* giving it a reasonably high chance of working on typical architetcures */
288static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 336static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
289#endif 337#endif
290 338
291#ifdef _WIN32 339#ifdef _WIN32
292# include "ev_win32.c" 340# include "ev_win32.c"
293#endif 341#endif
… …
315 perror (msg); 363 perror (msg);
316 abort (); 364 abort ();
317 } 365 }
318} 366}
319 367
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
320static void *(*alloc)(void *ptr, long size); 383static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
321 384
322void 385void
323ev_set_allocator (void *(*cb)(void *ptr, long size)) 386ev_set_allocator (void *(*cb)(void *ptr, long size))
324{ 387{
325 alloc = cb; 388 alloc = cb;
326} 389}
327 390
328inline_speed void * 391inline_speed void *
329ev_realloc (void *ptr, long size) 392ev_realloc (void *ptr, long size)
330{ 393{
331 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 394 ptr = alloc (ptr, size);
332 395
333 if (!ptr && size) 396 if (!ptr && size)
334 { 397 {
335 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 398 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
336 abort (); 399 abort ();
… …
443 ts.tv_sec = (time_t)delay; 506 ts.tv_sec = (time_t)delay;
444 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); 507 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
445 508
446 nanosleep (&ts, 0); 509 nanosleep (&ts, 0);
447#elif defined(_WIN32) 510#elif defined(_WIN32)
448 Sleep (delay * 1e3); 511 Sleep ((unsigned long)(delay * 1e3));
449#else 512#else
450 struct timeval tv; 513 struct timeval tv;
451 514
452 tv.tv_sec = (time_t)delay; 515 tv.tv_sec = (time_t)delay;
453 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 516 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
… …
592 655
593#if EV_SELECT_IS_WINSOCKET 656#if EV_SELECT_IS_WINSOCKET
594 if (events) 657 if (events)
595 { 658 {
596 unsigned long argp; 659 unsigned long argp;
660 #ifdef EV_FD_TO_WIN32_HANDLE
661 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
662 #else
597 anfd->handle = _get_osfhandle (fd); 663 anfd->handle = _get_osfhandle (fd);
664 #endif
598 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 665 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
599 } 666 }
600#endif 667#endif
601 668
602 { 669 {
… …
690 } 757 }
691} 758}
692 759
693/*****************************************************************************/ 760/*****************************************************************************/
694 761
762/* towards the root */
695void inline_speed 763void inline_speed
696upheap (WT *heap, int k) 764upheap (WT *heap, int k)
697{ 765{
698 WT w = heap [k]; 766 WT w = heap [k];
699 767
700 while (k) 768 for (;;)
701 { 769 {
702 int p = (k - 1) >> 1; 770 int p = k >> 1;
703 771
772 /* maybe we could use a dummy element at heap [0]? */
704 if (heap [p]->at <= w->at) 773 if (!p || heap [p]->at <= w->at)
705 break; 774 break;
706 775
707 heap [k] = heap [p]; 776 heap [k] = heap [p];
708 ((W)heap [k])->active = k + 1; 777 ((W)heap [k])->active = k;
709 k = p; 778 k = p;
710 } 779 }
711 780
712 heap [k] = w; 781 heap [k] = w;
713 ((W)heap [k])->active = k + 1; 782 ((W)heap [k])->active = k;
714} 783}
715 784
785/* away from the root */
716void inline_speed 786void inline_speed
717downheap (WT *heap, int N, int k) 787downheap (WT *heap, int N, int k)
718{ 788{
719 WT w = heap [k]; 789 WT w = heap [k];
720 790
721 for (;;) 791 for (;;)
722 { 792 {
723 int c = (k << 1) + 1; 793 int c = k << 1;
724 794
725 if (c >= N) 795 if (c > N)
726 break; 796 break;
727 797
728 c += c + 1 < N && heap [c]->at > heap [c + 1]->at 798 c += c < N && heap [c]->at > heap [c + 1]->at
729 ? 1 : 0; 799 ? 1 : 0;
730 800
731 if (w->at <= heap [c]->at) 801 if (w->at <= heap [c]->at)
732 break; 802 break;
733 803
734 heap [k] = heap [c]; 804 heap [k] = heap [c];
735 ((W)heap [k])->active = k + 1; 805 ((W)heap [k])->active = k;
736 806
737 k = c; 807 k = c;
738 } 808 }
739 809
740 heap [k] = w; 810 heap [k] = w;
741 ((W)heap [k])->active = k + 1; 811 ((W)heap [k])->active = k;
742} 812}
743 813
744void inline_size 814void inline_size
745adjustheap (WT *heap, int N, int k) 815adjustheap (WT *heap, int N, int k)
746{ 816{
… …
751/*****************************************************************************/ 821/*****************************************************************************/
752 822
753typedef struct 823typedef struct
754{ 824{
755 WL head; 825 WL head;
756 sig_atomic_t volatile gotsig; 826 EV_ATOMIC_T gotsig;
757} ANSIG; 827} ANSIG;
758 828
759static ANSIG *signals; 829static ANSIG *signals;
760static int signalmax; 830static int signalmax;
761 831
762static int sigpipe [2]; 832static EV_ATOMIC_T gotsig;
763static sig_atomic_t volatile gotsig;
764static ev_io sigev;
765 833
766void inline_size 834void inline_size
767signals_init (ANSIG *base, int count) 835signals_init (ANSIG *base, int count)
768{ 836{
769 while (count--) 837 while (count--)
… …
773 841
774 ++base; 842 ++base;
775 } 843 }
776} 844}
777 845
778static void 846/*****************************************************************************/
779sighandler (int signum)
780{
781#if _WIN32
782 signal (signum, sighandler);
783#endif
784
785 signals [signum - 1].gotsig = 1;
786
787 if (!gotsig)
788 {
789 int old_errno = errno;
790 gotsig = 1;
791 write (sigpipe [1], &signum, 1);
792 errno = old_errno;
793 }
794}
795
796void noinline
797ev_feed_signal_event (EV_P_ int signum)
798{
799 WL w;
800
801#if EV_MULTIPLICITY
802 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
803#endif
804
805 --signum;
806
807 if (signum < 0 || signum >= signalmax)
808 return;
809
810 signals [signum].gotsig = 0;
811
812 for (w = signals [signum].head; w; w = w->next)
813 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
814}
815
816static void
817sigcb (EV_P_ ev_io *iow, int revents)
818{
819 int signum;
820
821 read (sigpipe [0], &revents, 1);
822 gotsig = 0;
823
824 for (signum = signalmax; signum--; )
825 if (signals [signum].gotsig)
826 ev_feed_signal_event (EV_A_ signum + 1);
827}
828 847
829void inline_speed 848void inline_speed
830fd_intern (int fd) 849fd_intern (int fd)
831{ 850{
832#ifdef _WIN32 851#ifdef _WIN32
… …
837 fcntl (fd, F_SETFL, O_NONBLOCK); 856 fcntl (fd, F_SETFL, O_NONBLOCK);
838#endif 857#endif
839} 858}
840 859
841static void noinline 860static void noinline
842siginit (EV_P) 861evpipe_init (EV_P)
843{ 862{
863 if (!ev_is_active (&pipeev))
864 {
865#if EV_USE_EVENTFD
866 if ((evfd = eventfd (0, 0)) >= 0)
867 {
868 evpipe [0] = -1;
869 fd_intern (evfd);
870 ev_io_set (&pipeev, evfd, EV_READ);
871 }
872 else
873#endif
874 {
875 while (pipe (evpipe))
876 syserr ("(libev) error creating signal/async pipe");
877
844 fd_intern (sigpipe [0]); 878 fd_intern (evpipe [0]);
845 fd_intern (sigpipe [1]); 879 fd_intern (evpipe [1]);
880 ev_io_set (&pipeev, evpipe [0], EV_READ);
881 }
846 882
847 ev_io_set (&sigev, sigpipe [0], EV_READ);
848 ev_io_start (EV_A_ &sigev); 883 ev_io_start (EV_A_ &pipeev);
849 ev_unref (EV_A); /* child watcher should not keep loop alive */ 884 ev_unref (EV_A); /* watcher should not keep loop alive */
885 }
886}
887
888void inline_size
889evpipe_write (EV_P_ EV_ATOMIC_T *flag)
890{
891 if (!*flag)
892 {
893 int old_errno = errno; /* save errno because write might clobber it */
894
895 *flag = 1;
896
897#if EV_USE_EVENTFD
898 if (evfd >= 0)
899 {
900 uint64_t counter = 1;
901 write (evfd, &counter, sizeof (uint64_t));
902 }
903 else
904#endif
905 write (evpipe [1], &old_errno, 1);
906
907 errno = old_errno;
908 }
909}
910
911static void
912pipecb (EV_P_ ev_io *iow, int revents)
913{
914#if EV_USE_EVENTFD
915 if (evfd >= 0)
916 {
917 uint64_t counter = 1;
918 read (evfd, &counter, sizeof (uint64_t));
919 }
920 else
921#endif
922 {
923 char dummy;
924 read (evpipe [0], &dummy, 1);
925 }
926
927 if (gotsig && ev_is_default_loop (EV_A))
928 {
929 int signum;
930 gotsig = 0;
931
932 for (signum = signalmax; signum--; )
933 if (signals [signum].gotsig)
934 ev_feed_signal_event (EV_A_ signum + 1);
935 }
936
937#if EV_ASYNC_ENABLE
938 if (gotasync)
939 {
940 int i;
941 gotasync = 0;
942
943 for (i = asynccnt; i--; )
944 if (asyncs [i]->sent)
945 {
946 asyncs [i]->sent = 0;
947 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
948 }
949 }
950#endif
850} 951}
851 952
852/*****************************************************************************/ 953/*****************************************************************************/
853 954
955static void
956ev_sighandler (int signum)
957{
958#if EV_MULTIPLICITY
959 struct ev_loop *loop = &default_loop_struct;
960#endif
961
962#if _WIN32
963 signal (signum, ev_sighandler);
964#endif
965
966 signals [signum - 1].gotsig = 1;
967 evpipe_write (EV_A_ &gotsig);
968}
969
970void noinline
971ev_feed_signal_event (EV_P_ int signum)
972{
973 WL w;
974
975#if EV_MULTIPLICITY
976 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
977#endif
978
979 --signum;
980
981 if (signum < 0 || signum >= signalmax)
982 return;
983
984 signals [signum].gotsig = 0;
985
986 for (w = signals [signum].head; w; w = w->next)
987 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
988}
989
990/*****************************************************************************/
991
854static WL childs [EV_PID_HASHSIZE]; 992static WL childs [EV_PID_HASHSIZE];
855 993
856#ifndef _WIN32 994#ifndef _WIN32
857 995
858static ev_signal childev; 996static ev_signal childev;
859 997
998#ifndef WIFCONTINUED
999# define WIFCONTINUED(status) 0
1000#endif
1001
860void inline_speed 1002void inline_speed
861child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 1003child_reap (EV_P_ int chain, int pid, int status)
862{ 1004{
863 ev_child *w; 1005 ev_child *w;
1006 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
864 1007
865 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1008 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1009 {
866 if (w->pid == pid || !w->pid) 1010 if ((w->pid == pid || !w->pid)
1011 && (!traced || (w->flags & 1)))
867 { 1012 {
868 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ 1013 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
869 w->rpid = pid; 1014 w->rpid = pid;
870 w->rstatus = status; 1015 w->rstatus = status;
871 ev_feed_event (EV_A_ (W)w, EV_CHILD); 1016 ev_feed_event (EV_A_ (W)w, EV_CHILD);
872 } 1017 }
1018 }
873} 1019}
874 1020
875#ifndef WCONTINUED 1021#ifndef WCONTINUED
876# define WCONTINUED 0 1022# define WCONTINUED 0
877#endif 1023#endif
… …
886 if (!WCONTINUED 1032 if (!WCONTINUED
887 || errno != EINVAL 1033 || errno != EINVAL
888 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 1034 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
889 return; 1035 return;
890 1036
891 /* make sure we are called again until all childs have been reaped */ 1037 /* make sure we are called again until all children have been reaped */
892 /* we need to do it this way so that the callback gets called before we continue */ 1038 /* we need to do it this way so that the callback gets called before we continue */
893 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1039 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
894 1040
895 child_reap (EV_A_ sw, pid, pid, status); 1041 child_reap (EV_A_ pid, pid, status);
896 if (EV_PID_HASHSIZE > 1) 1042 if (EV_PID_HASHSIZE > 1)
897 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1043 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
898} 1044}
899 1045
900#endif 1046#endif
901 1047
902/*****************************************************************************/ 1048/*****************************************************************************/
… …
1020 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1166 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1021 have_monotonic = 1; 1167 have_monotonic = 1;
1022 } 1168 }
1023#endif 1169#endif
1024 1170
1025 ev_rt_now = ev_time (); 1171 ev_rt_now = ev_time ();
1026 mn_now = get_clock (); 1172 mn_now = get_clock ();
1027 now_floor = mn_now; 1173 now_floor = mn_now;
1028 rtmn_diff = ev_rt_now - mn_now; 1174 rtmn_diff = ev_rt_now - mn_now;
1029 1175
1030 io_blocktime = 0.; 1176 io_blocktime = 0.;
1031 timeout_blocktime = 0.; 1177 timeout_blocktime = 0.;
1178 backend = 0;
1179 backend_fd = -1;
1180 gotasync = 0;
1181#if EV_USE_INOTIFY
1182 fs_fd = -2;
1183#endif
1032 1184
1033 /* pid check not overridable via env */ 1185 /* pid check not overridable via env */
1034#ifndef _WIN32 1186#ifndef _WIN32
1035 if (flags & EVFLAG_FORKCHECK) 1187 if (flags & EVFLAG_FORKCHECK)
1036 curpid = getpid (); 1188 curpid = getpid ();
… …
1039 if (!(flags & EVFLAG_NOENV) 1191 if (!(flags & EVFLAG_NOENV)
1040 && !enable_secure () 1192 && !enable_secure ()
1041 && getenv ("LIBEV_FLAGS")) 1193 && getenv ("LIBEV_FLAGS"))
1042 flags = atoi (getenv ("LIBEV_FLAGS")); 1194 flags = atoi (getenv ("LIBEV_FLAGS"));
1043 1195
1044 if (!(flags & 0x0000ffffUL)) 1196 if (!(flags & 0x0000ffffU))
1045 flags |= ev_recommended_backends (); 1197 flags |= ev_recommended_backends ();
1046
1047 backend = 0;
1048 backend_fd = -1;
1049#if EV_USE_INOTIFY
1050 fs_fd = -2;
1051#endif
1052 1198
1053#if EV_USE_PORT 1199#if EV_USE_PORT
1054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1200 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1055#endif 1201#endif
1056#if EV_USE_KQUEUE 1202#if EV_USE_KQUEUE
… …
1064#endif 1210#endif
1065#if EV_USE_SELECT 1211#if EV_USE_SELECT
1066 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1212 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1067#endif 1213#endif
1068 1214
1069 ev_init (&sigev, sigcb); 1215 ev_init (&pipeev, pipecb);
1070 ev_set_priority (&sigev, EV_MAXPRI); 1216 ev_set_priority (&pipeev, EV_MAXPRI);
1071 } 1217 }
1072} 1218}
1073 1219
1074static void noinline 1220static void noinline
1075loop_destroy (EV_P) 1221loop_destroy (EV_P)
1076{ 1222{
1077 int i; 1223 int i;
1224
1225 if (ev_is_active (&pipeev))
1226 {
1227 ev_ref (EV_A); /* signal watcher */
1228 ev_io_stop (EV_A_ &pipeev);
1229
1230#if EV_USE_EVENTFD
1231 if (evfd >= 0)
1232 close (evfd);
1233#endif
1234
1235 if (evpipe [0] >= 0)
1236 {
1237 close (evpipe [0]);
1238 close (evpipe [1]);
1239 }
1240 }
1078 1241
1079#if EV_USE_INOTIFY 1242#if EV_USE_INOTIFY
1080 if (fs_fd >= 0) 1243 if (fs_fd >= 0)
1081 close (fs_fd); 1244 close (fs_fd);
1082#endif 1245#endif
… …
1119#if EV_FORK_ENABLE 1282#if EV_FORK_ENABLE
1120 array_free (fork, EMPTY); 1283 array_free (fork, EMPTY);
1121#endif 1284#endif
1122 array_free (prepare, EMPTY); 1285 array_free (prepare, EMPTY);
1123 array_free (check, EMPTY); 1286 array_free (check, EMPTY);
1287#if EV_ASYNC_ENABLE
1288 array_free (async, EMPTY);
1289#endif
1124 1290
1125 backend = 0; 1291 backend = 0;
1126} 1292}
1127 1293
1294#if EV_USE_INOTIFY
1128void inline_size infy_fork (EV_P); 1295void inline_size infy_fork (EV_P);
1296#endif
1129 1297
1130void inline_size 1298void inline_size
1131loop_fork (EV_P) 1299loop_fork (EV_P)
1132{ 1300{
1133#if EV_USE_PORT 1301#if EV_USE_PORT
… …
1141#endif 1309#endif
1142#if EV_USE_INOTIFY 1310#if EV_USE_INOTIFY
1143 infy_fork (EV_A); 1311 infy_fork (EV_A);
1144#endif 1312#endif
1145 1313
1146 if (ev_is_active (&sigev)) 1314 if (ev_is_active (&pipeev))
1147 { 1315 {
1148 /* default loop */ 1316 /* this "locks" the handlers against writing to the pipe */
1317 /* while we modify the fd vars */
1318 gotsig = 1;
1319#if EV_ASYNC_ENABLE
1320 gotasync = 1;
1321#endif
1149 1322
1150 ev_ref (EV_A); 1323 ev_ref (EV_A);
1151 ev_io_stop (EV_A_ &sigev); 1324 ev_io_stop (EV_A_ &pipeev);
1325
1326#if EV_USE_EVENTFD
1327 if (evfd >= 0)
1328 close (evfd);
1329#endif
1330
1331 if (evpipe [0] >= 0)
1332 {
1152 close (sigpipe [0]); 1333 close (evpipe [0]);
1153 close (sigpipe [1]); 1334 close (evpipe [1]);
1335 }
1154 1336
1155 while (pipe (sigpipe))
1156 syserr ("(libev) error creating pipe");
1157
1158 siginit (EV_A); 1337 evpipe_init (EV_A);
1338 /* now iterate over everything, in case we missed something */
1339 pipecb (EV_A_ &pipeev, EV_READ);
1159 } 1340 }
1160 1341
1161 postfork = 0; 1342 postfork = 0;
1162} 1343}
1163 1344
… …
1185} 1366}
1186 1367
1187void 1368void
1188ev_loop_fork (EV_P) 1369ev_loop_fork (EV_P)
1189{ 1370{
1190 postfork = 1; 1371 postfork = 1; /* must be in line with ev_default_fork */
1191} 1372}
1192 1373
1193#endif 1374#endif
1194 1375
1195#if EV_MULTIPLICITY 1376#if EV_MULTIPLICITY
… …
1198#else 1379#else
1199int 1380int
1200ev_default_loop (unsigned int flags) 1381ev_default_loop (unsigned int flags)
1201#endif 1382#endif
1202{ 1383{
1203 if (sigpipe [0] == sigpipe [1])
1204 if (pipe (sigpipe))
1205 return 0;
1206
1207 if (!ev_default_loop_ptr) 1384 if (!ev_default_loop_ptr)
1208 { 1385 {
1209#if EV_MULTIPLICITY 1386#if EV_MULTIPLICITY
1210 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1387 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1211#else 1388#else
… …
1214 1391
1215 loop_init (EV_A_ flags); 1392 loop_init (EV_A_ flags);
1216 1393
1217 if (ev_backend (EV_A)) 1394 if (ev_backend (EV_A))
1218 { 1395 {
1219 siginit (EV_A);
1220
1221#ifndef _WIN32 1396#ifndef _WIN32
1222 ev_signal_init (&childev, childcb, SIGCHLD); 1397 ev_signal_init (&childev, childcb, SIGCHLD);
1223 ev_set_priority (&childev, EV_MAXPRI); 1398 ev_set_priority (&childev, EV_MAXPRI);
1224 ev_signal_start (EV_A_ &childev); 1399 ev_signal_start (EV_A_ &childev);
1225 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1400 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1242#ifndef _WIN32 1417#ifndef _WIN32
1243 ev_ref (EV_A); /* child watcher */ 1418 ev_ref (EV_A); /* child watcher */
1244 ev_signal_stop (EV_A_ &childev); 1419 ev_signal_stop (EV_A_ &childev);
1245#endif 1420#endif
1246 1421
1247 ev_ref (EV_A); /* signal watcher */
1248 ev_io_stop (EV_A_ &sigev);
1249
1250 close (sigpipe [0]); sigpipe [0] = 0;
1251 close (sigpipe [1]); sigpipe [1] = 0;
1252
1253 loop_destroy (EV_A); 1422 loop_destroy (EV_A);
1254} 1423}
1255 1424
1256void 1425void
1257ev_default_fork (void) 1426ev_default_fork (void)
… …
1259#if EV_MULTIPLICITY 1428#if EV_MULTIPLICITY
1260 struct ev_loop *loop = ev_default_loop_ptr; 1429 struct ev_loop *loop = ev_default_loop_ptr;
1261#endif 1430#endif
1262 1431
1263 if (backend) 1432 if (backend)
1264 postfork = 1; 1433 postfork = 1; /* must be in line with ev_loop_fork */
1265} 1434}
1266 1435
1267/*****************************************************************************/ 1436/*****************************************************************************/
1268 1437
1269void 1438void
… …
1293} 1462}
1294 1463
1295void inline_size 1464void inline_size
1296timers_reify (EV_P) 1465timers_reify (EV_P)
1297{ 1466{
1298 while (timercnt && ((WT)timers [0])->at <= mn_now) 1467 while (timercnt && ev_at (timers [1]) <= mn_now)
1299 { 1468 {
1300 ev_timer *w = (ev_timer *)timers [0]; 1469 ev_timer *w = (ev_timer *)timers [1];
1301 1470
1302 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ 1471 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1303 1472
1304 /* first reschedule or stop timer */ 1473 /* first reschedule or stop timer */
1305 if (w->repeat) 1474 if (w->repeat)
1306 { 1475 {
1307 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1476 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1308 1477
1309 ((WT)w)->at += w->repeat; 1478 ev_at (w) += w->repeat;
1310 if (((WT)w)->at < mn_now) 1479 if (ev_at (w) < mn_now)
1311 ((WT)w)->at = mn_now; 1480 ev_at (w) = mn_now;
1312 1481
1313 downheap (timers, timercnt, 0); 1482 downheap (timers, timercnt, 1);
1314 } 1483 }
1315 else 1484 else
1316 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1485 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1317 1486
1318 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1487 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1321 1490
1322#if EV_PERIODIC_ENABLE 1491#if EV_PERIODIC_ENABLE
1323void inline_size 1492void inline_size
1324periodics_reify (EV_P) 1493periodics_reify (EV_P)
1325{ 1494{
1326 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1495 while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1327 { 1496 {
1328 ev_periodic *w = (ev_periodic *)periodics [0]; 1497 ev_periodic *w = (ev_periodic *)periodics [1];
1329 1498
1330 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1499 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1331 1500
1332 /* first reschedule or stop timer */ 1501 /* first reschedule or stop timer */
1333 if (w->reschedule_cb) 1502 if (w->reschedule_cb)
1334 { 1503 {
1335 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); 1504 ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1336 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1505 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1337 downheap (periodics, periodiccnt, 0); 1506 downheap (periodics, periodiccnt, 1);
1338 } 1507 }
1339 else if (w->interval) 1508 else if (w->interval)
1340 { 1509 {
1341 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1510 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1342 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; 1511 if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1343 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1512 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1344 downheap (periodics, periodiccnt, 0); 1513 downheap (periodics, periodiccnt, 1);
1345 } 1514 }
1346 else 1515 else
1347 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1516 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1348 1517
1349 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1518 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1359 for (i = 0; i < periodiccnt; ++i) 1528 for (i = 0; i < periodiccnt; ++i)
1360 { 1529 {
1361 ev_periodic *w = (ev_periodic *)periodics [i]; 1530 ev_periodic *w = (ev_periodic *)periodics [i];
1362 1531
1363 if (w->reschedule_cb) 1532 if (w->reschedule_cb)
1364 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1533 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1365 else if (w->interval) 1534 else if (w->interval)
1366 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1535 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1367 } 1536 }
1368 1537
1369 /* now rebuild the heap */ 1538 /* now rebuild the heap */
1370 for (i = periodiccnt >> 1; i--; ) 1539 for (i = periodiccnt >> 1; i--; )
1371 downheap (periodics, periodiccnt, i); 1540 downheap (periodics, periodiccnt, i);
… …
1453 { 1622 {
1454#if EV_PERIODIC_ENABLE 1623#if EV_PERIODIC_ENABLE
1455 periodics_reschedule (EV_A); 1624 periodics_reschedule (EV_A);
1456#endif 1625#endif
1457 /* adjust timers. this is easy, as the offset is the same for all of them */ 1626 /* adjust timers. this is easy, as the offset is the same for all of them */
1458 for (i = 0; i < timercnt; ++i) 1627 for (i = 1; i <= timercnt; ++i)
1459 ((WT)timers [i])->at += ev_rt_now - mn_now; 1628 ev_at (timers [i]) += ev_rt_now - mn_now;
1460 } 1629 }
1461 1630
1462 mn_now = ev_rt_now; 1631 mn_now = ev_rt_now;
1463 } 1632 }
1464} 1633}
… …
1478static int loop_done; 1647static int loop_done;
1479 1648
1480void 1649void
1481ev_loop (EV_P_ int flags) 1650ev_loop (EV_P_ int flags)
1482{ 1651{
1483 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1652 loop_done = EVUNLOOP_CANCEL;
1484 ? EVUNLOOP_ONE
1485 : EVUNLOOP_CANCEL;
1486 1653
1487 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 1654 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1488 1655
1489 do 1656 do
1490 { 1657 {
… …
1536 1703
1537 waittime = MAX_BLOCKTIME; 1704 waittime = MAX_BLOCKTIME;
1538 1705
1539 if (timercnt) 1706 if (timercnt)
1540 { 1707 {
1541 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1708 ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1542 if (waittime > to) waittime = to; 1709 if (waittime > to) waittime = to;
1543 } 1710 }
1544 1711
1545#if EV_PERIODIC_ENABLE 1712#if EV_PERIODIC_ENABLE
1546 if (periodiccnt) 1713 if (periodiccnt)
1547 { 1714 {
1548 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1715 ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;
1549 if (waittime > to) waittime = to; 1716 if (waittime > to) waittime = to;
1550 } 1717 }
1551#endif 1718#endif
1552 1719
1553 if (expect_false (waittime < timeout_blocktime)) 1720 if (expect_false (waittime < timeout_blocktime))
… …
1586 /* queue check watchers, to be executed first */ 1753 /* queue check watchers, to be executed first */
1587 if (expect_false (checkcnt)) 1754 if (expect_false (checkcnt))
1588 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1755 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1589 1756
1590 call_pending (EV_A); 1757 call_pending (EV_A);
1591
1592 } 1758 }
1593 while (expect_true (activecnt && !loop_done)); 1759 while (expect_true (
1760 activecnt
1761 && !loop_done
1762 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1763 ));
1594 1764
1595 if (loop_done == EVUNLOOP_ONE) 1765 if (loop_done == EVUNLOOP_ONE)
1596 loop_done = EVUNLOOP_CANCEL; 1766 loop_done = EVUNLOOP_CANCEL;
1597} 1767}
1598 1768
… …
1716ev_timer_start (EV_P_ ev_timer *w) 1886ev_timer_start (EV_P_ ev_timer *w)
1717{ 1887{
1718 if (expect_false (ev_is_active (w))) 1888 if (expect_false (ev_is_active (w)))
1719 return; 1889 return;
1720 1890
1721 ((WT)w)->at += mn_now; 1891 ev_at (w) += mn_now;
1722 1892
1723 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1893 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1724 1894
1725 ev_start (EV_A_ (W)w, ++timercnt); 1895 ev_start (EV_A_ (W)w, ++timercnt);
1726 array_needsize (WT, timers, timermax, timercnt, EMPTY2); 1896 array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1727 timers [timercnt - 1] = (WT)w; 1897 timers [timercnt] = (WT)w;
1728 upheap (timers, timercnt - 1); 1898 upheap (timers, timercnt);
1729 1899
1730 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1900 /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/
1731} 1901}
1732 1902
1733void noinline 1903void noinline
1734ev_timer_stop (EV_P_ ev_timer *w) 1904ev_timer_stop (EV_P_ ev_timer *w)
1735{ 1905{
1736 clear_pending (EV_A_ (W)w); 1906 clear_pending (EV_A_ (W)w);
1737 if (expect_false (!ev_is_active (w))) 1907 if (expect_false (!ev_is_active (w)))
1738 return; 1908 return;
1739 1909
1740 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); 1910 assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w));
1741 1911
1742 { 1912 {
1743 int active = ((W)w)->active; 1913 int active = ((W)w)->active;
1744 1914
1745 if (expect_true (--active < --timercnt)) 1915 if (expect_true (active < timercnt))
1746 { 1916 {
1747 timers [active] = timers [timercnt]; 1917 timers [active] = timers [timercnt];
1748 adjustheap (timers, timercnt, active); 1918 adjustheap (timers, timercnt, active);
1749 } 1919 }
1920
1921 --timercnt;
1750 } 1922 }
1751 1923
1752 ((WT)w)->at -= mn_now; 1924 ev_at (w) -= mn_now;
1753 1925
1754 ev_stop (EV_A_ (W)w); 1926 ev_stop (EV_A_ (W)w);
1755} 1927}
1756 1928
1757void noinline 1929void noinline
… …
1759{ 1931{
1760 if (ev_is_active (w)) 1932 if (ev_is_active (w))
1761 { 1933 {
1762 if (w->repeat) 1934 if (w->repeat)
1763 { 1935 {
1764 ((WT)w)->at = mn_now + w->repeat; 1936 ev_at (w) = mn_now + w->repeat;
1765 adjustheap (timers, timercnt, ((W)w)->active - 1); 1937 adjustheap (timers, timercnt, ((W)w)->active);
1766 } 1938 }
1767 else 1939 else
1768 ev_timer_stop (EV_A_ w); 1940 ev_timer_stop (EV_A_ w);
1769 } 1941 }
1770 else if (w->repeat) 1942 else if (w->repeat)
1771 { 1943 {
1772 w->at = w->repeat; 1944 ev_at (w) = w->repeat;
1773 ev_timer_start (EV_A_ w); 1945 ev_timer_start (EV_A_ w);
1774 } 1946 }
1775} 1947}
1776 1948
1777#if EV_PERIODIC_ENABLE 1949#if EV_PERIODIC_ENABLE
… …
1780{ 1952{
1781 if (expect_false (ev_is_active (w))) 1953 if (expect_false (ev_is_active (w)))
1782 return; 1954 return;
1783 1955
1784 if (w->reschedule_cb) 1956 if (w->reschedule_cb)
1785 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1957 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1786 else if (w->interval) 1958 else if (w->interval)
1787 { 1959 {
1788 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1960 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1789 /* this formula differs from the one in periodic_reify because we do not always round up */ 1961 /* this formula differs from the one in periodic_reify because we do not always round up */
1790 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 1962 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1791 } 1963 }
1792 else 1964 else
1793 ((WT)w)->at = w->offset; 1965 ev_at (w) = w->offset;
1794 1966
1795 ev_start (EV_A_ (W)w, ++periodiccnt); 1967 ev_start (EV_A_ (W)w, ++periodiccnt);
1796 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); 1968 array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1797 periodics [periodiccnt - 1] = (WT)w; 1969 periodics [periodiccnt] = (WT)w;
1798 upheap (periodics, periodiccnt - 1); 1970 upheap (periodics, periodiccnt);
1799 1971
1800 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 1972 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1801} 1973}
1802 1974
1803void noinline 1975void noinline
… …
1805{ 1977{
1806 clear_pending (EV_A_ (W)w); 1978 clear_pending (EV_A_ (W)w);
1807 if (expect_false (!ev_is_active (w))) 1979 if (expect_false (!ev_is_active (w)))
1808 return; 1980 return;
1809 1981
1810 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); 1982 assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w));
1811 1983
1812 { 1984 {
1813 int active = ((W)w)->active; 1985 int active = ((W)w)->active;
1814 1986
1815 if (expect_true (--active < --periodiccnt)) 1987 if (expect_true (active < periodiccnt))
1816 { 1988 {
1817 periodics [active] = periodics [periodiccnt]; 1989 periodics [active] = periodics [periodiccnt];
1818 adjustheap (periodics, periodiccnt, active); 1990 adjustheap (periodics, periodiccnt, active);
1819 } 1991 }
1992
1993 --periodiccnt;
1820 } 1994 }
1821 1995
1822 ev_stop (EV_A_ (W)w); 1996 ev_stop (EV_A_ (W)w);
1823} 1997}
1824 1998
… …
1843#endif 2017#endif
1844 if (expect_false (ev_is_active (w))) 2018 if (expect_false (ev_is_active (w)))
1845 return; 2019 return;
1846 2020
1847 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2021 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2022
2023 evpipe_init (EV_A);
1848 2024
1849 { 2025 {
1850#ifndef _WIN32 2026#ifndef _WIN32
1851 sigset_t full, prev; 2027 sigset_t full, prev;
1852 sigfillset (&full); 2028 sigfillset (&full);
… …
1864 wlist_add (&signals [w->signum - 1].head, (WL)w); 2040 wlist_add (&signals [w->signum - 1].head, (WL)w);
1865 2041
1866 if (!((WL)w)->next) 2042 if (!((WL)w)->next)
1867 { 2043 {
1868#if _WIN32 2044#if _WIN32
1869 signal (w->signum, sighandler); 2045 signal (w->signum, ev_sighandler);
1870#else 2046#else
1871 struct sigaction sa; 2047 struct sigaction sa;
1872 sa.sa_handler = sighandler; 2048 sa.sa_handler = ev_sighandler;
1873 sigfillset (&sa.sa_mask); 2049 sigfillset (&sa.sa_mask);
1874 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2050 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1875 sigaction (w->signum, &sa, 0); 2051 sigaction (w->signum, &sa, 0);
1876#endif 2052#endif
1877 } 2053 }
… …
2366 2542
2367 ev_stop (EV_A_ (W)w); 2543 ev_stop (EV_A_ (W)w);
2368} 2544}
2369#endif 2545#endif
2370 2546
2547#if EV_ASYNC_ENABLE
2548void
2549ev_async_start (EV_P_ ev_async *w)
2550{
2551 if (expect_false (ev_is_active (w)))
2552 return;
2553
2554 evpipe_init (EV_A);
2555
2556 ev_start (EV_A_ (W)w, ++asynccnt);
2557 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2558 asyncs [asynccnt - 1] = w;
2559}
2560
2561void
2562ev_async_stop (EV_P_ ev_async *w)
2563{
2564 clear_pending (EV_A_ (W)w);
2565 if (expect_false (!ev_is_active (w)))
2566 return;
2567
2568 {
2569 int active = ((W)w)->active;
2570 asyncs [active - 1] = asyncs [--asynccnt];
2571 ((W)asyncs [active - 1])->active = active;
2572 }
2573
2574 ev_stop (EV_A_ (W)w);
2575}
2576
2577void
2578ev_async_send (EV_P_ ev_async *w)
2579{
2580 w->sent = 1;
2581 evpipe_write (EV_A_ &gotasync);
2582}
2583#endif
2584
2371/*****************************************************************************/ 2585/*****************************************************************************/
2372 2586
2373struct ev_once 2587struct ev_once
2374{ 2588{
2375 ev_io io; 2589 ev_io io;

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