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Comparing libev/ev.c (file contents):
Revision 1.197 by root, Sat Dec 22 15:20:13 2007 UTC vs.
Revision 1.216 by root, Sat Mar 8 07:04:55 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
… …
280 288
281typedef ev_watcher *W; 289typedef ev_watcher *W;
282typedef ev_watcher_list *WL; 290typedef ev_watcher_list *WL;
283typedef ev_watcher_time *WT; 291typedef ev_watcher_time *WT;
284 292
293#if EV_USE_MONOTONIC
285/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 294/* sig_atomic_t is used to avoid per-thread variables or locking but still */
286/* giving it a reasonably high chance of working on typical architetcures */ 295/* giving it a reasonably high chance of working on typical architetcures */
287static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 296static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
297#endif
288 298
289#ifdef _WIN32 299#ifdef _WIN32
290# include "ev_win32.c" 300# include "ev_win32.c"
291#endif 301#endif
292 302
… …
590 600
591#if EV_SELECT_IS_WINSOCKET 601#if EV_SELECT_IS_WINSOCKET
592 if (events) 602 if (events)
593 { 603 {
594 unsigned long argp; 604 unsigned long argp;
605 #ifdef EV_FD_TO_WIN32_HANDLE
606 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
607 #else
595 anfd->handle = _get_osfhandle (fd); 608 anfd->handle = _get_osfhandle (fd);
609 #endif
596 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 610 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
597 } 611 }
598#endif 612#endif
599 613
600 { 614 {
… …
749/*****************************************************************************/ 763/*****************************************************************************/
750 764
751typedef struct 765typedef struct
752{ 766{
753 WL head; 767 WL head;
754 sig_atomic_t volatile gotsig; 768 EV_ATOMIC_T gotsig;
755} ANSIG; 769} ANSIG;
756 770
757static ANSIG *signals; 771static ANSIG *signals;
758static int signalmax; 772static int signalmax;
759 773
760static int sigpipe [2]; 774static EV_ATOMIC_T gotsig;
761static sig_atomic_t volatile gotsig;
762static ev_io sigev;
763 775
764void inline_size 776void inline_size
765signals_init (ANSIG *base, int count) 777signals_init (ANSIG *base, int count)
766{ 778{
767 while (count--) 779 while (count--)
… …
771 783
772 ++base; 784 ++base;
773 } 785 }
774} 786}
775 787
776static void 788/*****************************************************************************/
777sighandler (int signum)
778{
779#if _WIN32
780 signal (signum, sighandler);
781#endif
782
783 signals [signum - 1].gotsig = 1;
784
785 if (!gotsig)
786 {
787 int old_errno = errno;
788 gotsig = 1;
789 write (sigpipe [1], &signum, 1);
790 errno = old_errno;
791 }
792}
793
794void noinline
795ev_feed_signal_event (EV_P_ int signum)
796{
797 WL w;
798
799#if EV_MULTIPLICITY
800 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
801#endif
802
803 --signum;
804
805 if (signum < 0 || signum >= signalmax)
806 return;
807
808 signals [signum].gotsig = 0;
809
810 for (w = signals [signum].head; w; w = w->next)
811 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
812}
813
814static void
815sigcb (EV_P_ ev_io *iow, int revents)
816{
817 int signum;
818
819 read (sigpipe [0], &revents, 1);
820 gotsig = 0;
821
822 for (signum = signalmax; signum--; )
823 if (signals [signum].gotsig)
824 ev_feed_signal_event (EV_A_ signum + 1);
825}
826 789
827void inline_speed 790void inline_speed
828fd_intern (int fd) 791fd_intern (int fd)
829{ 792{
830#ifdef _WIN32 793#ifdef _WIN32
… …
835 fcntl (fd, F_SETFL, O_NONBLOCK); 798 fcntl (fd, F_SETFL, O_NONBLOCK);
836#endif 799#endif
837} 800}
838 801
839static void noinline 802static void noinline
840siginit (EV_P) 803evpipe_init (EV_P)
841{ 804{
805 if (!ev_is_active (&pipeev))
806 {
807 while (pipe (evpipe))
808 syserr ("(libev) error creating signal/async pipe");
809
842 fd_intern (sigpipe [0]); 810 fd_intern (evpipe [0]);
843 fd_intern (sigpipe [1]); 811 fd_intern (evpipe [1]);
844 812
845 ev_io_set (&sigev, sigpipe [0], EV_READ); 813 ev_io_set (&pipeev, evpipe [0], EV_READ);
846 ev_io_start (EV_A_ &sigev); 814 ev_io_start (EV_A_ &pipeev);
847 ev_unref (EV_A); /* child watcher should not keep loop alive */ 815 ev_unref (EV_A); /* watcher should not keep loop alive */
816 }
817}
818
819void inline_size
820evpipe_write (EV_P_ EV_ATOMIC_T *flag)
821{
822 if (!*flag)
823 {
824 int old_errno = errno; /* save errno because write might clobber it */
825
826 *flag = 1;
827 write (evpipe [1], &old_errno, 1);
828
829 errno = old_errno;
830 }
831}
832
833static void
834pipecb (EV_P_ ev_io *iow, int revents)
835{
836 {
837 int dummy;
838 read (evpipe [0], &dummy, 1);
839 }
840
841 if (gotsig && ev_is_default_loop (EV_A))
842 {
843 int signum;
844 gotsig = 0;
845
846 for (signum = signalmax; signum--; )
847 if (signals [signum].gotsig)
848 ev_feed_signal_event (EV_A_ signum + 1);
849 }
850
851#if EV_ASYNC_ENABLE
852 if (gotasync)
853 {
854 int i;
855 gotasync = 0;
856
857 for (i = asynccnt; i--; )
858 if (asyncs [i]->sent)
859 {
860 asyncs [i]->sent = 0;
861 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
862 }
863 }
864#endif
848} 865}
849 866
850/*****************************************************************************/ 867/*****************************************************************************/
851 868
869static void
870sighandler (int signum)
871{
872#if EV_MULTIPLICITY
873 struct ev_loop *loop = &default_loop_struct;
874#endif
875
876#if _WIN32
877 signal (signum, sighandler);
878#endif
879
880 signals [signum - 1].gotsig = 1;
881 evpipe_write (EV_A_ &gotsig);
882}
883
884void noinline
885ev_feed_signal_event (EV_P_ int signum)
886{
887 WL w;
888
889#if EV_MULTIPLICITY
890 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
891#endif
892
893 --signum;
894
895 if (signum < 0 || signum >= signalmax)
896 return;
897
898 signals [signum].gotsig = 0;
899
900 for (w = signals [signum].head; w; w = w->next)
901 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
902}
903
904/*****************************************************************************/
905
852static WL childs [EV_PID_HASHSIZE]; 906static WL childs [EV_PID_HASHSIZE];
853 907
854#ifndef _WIN32 908#ifndef _WIN32
855 909
856static ev_signal childev; 910static ev_signal childev;
857 911
912#ifndef WIFCONTINUED
913# define WIFCONTINUED(status) 0
914#endif
915
858void inline_speed 916void inline_speed
859child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 917child_reap (EV_P_ int chain, int pid, int status)
860{ 918{
861 ev_child *w; 919 ev_child *w;
920 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
862 921
863 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 922 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
923 {
864 if (w->pid == pid || !w->pid) 924 if ((w->pid == pid || !w->pid)
925 && (!traced || (w->flags & 1)))
865 { 926 {
866 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ 927 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
867 w->rpid = pid; 928 w->rpid = pid;
868 w->rstatus = status; 929 w->rstatus = status;
869 ev_feed_event (EV_A_ (W)w, EV_CHILD); 930 ev_feed_event (EV_A_ (W)w, EV_CHILD);
870 } 931 }
932 }
871} 933}
872 934
873#ifndef WCONTINUED 935#ifndef WCONTINUED
874# define WCONTINUED 0 936# define WCONTINUED 0
875#endif 937#endif
… …
884 if (!WCONTINUED 946 if (!WCONTINUED
885 || errno != EINVAL 947 || errno != EINVAL
886 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 948 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
887 return; 949 return;
888 950
889 /* make sure we are called again until all childs have been reaped */ 951 /* make sure we are called again until all children have been reaped */
890 /* we need to do it this way so that the callback gets called before we continue */ 952 /* we need to do it this way so that the callback gets called before we continue */
891 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 953 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
892 954
893 child_reap (EV_A_ sw, pid, pid, status); 955 child_reap (EV_A_ pid, pid, status);
894 if (EV_PID_HASHSIZE > 1) 956 if (EV_PID_HASHSIZE > 1)
895 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 957 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
896} 958}
897 959
898#endif 960#endif
899 961
900/*****************************************************************************/ 962/*****************************************************************************/
… …
1018 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1080 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1019 have_monotonic = 1; 1081 have_monotonic = 1;
1020 } 1082 }
1021#endif 1083#endif
1022 1084
1023 ev_rt_now = ev_time (); 1085 ev_rt_now = ev_time ();
1024 mn_now = get_clock (); 1086 mn_now = get_clock ();
1025 now_floor = mn_now; 1087 now_floor = mn_now;
1026 rtmn_diff = ev_rt_now - mn_now; 1088 rtmn_diff = ev_rt_now - mn_now;
1027 1089
1028 io_blocktime = 0.; 1090 io_blocktime = 0.;
1029 timeout_blocktime = 0.; 1091 timeout_blocktime = 0.;
1092 backend = 0;
1093 backend_fd = -1;
1094 gotasync = 0;
1095#if EV_USE_INOTIFY
1096 fs_fd = -2;
1097#endif
1030 1098
1031 /* pid check not overridable via env */ 1099 /* pid check not overridable via env */
1032#ifndef _WIN32 1100#ifndef _WIN32
1033 if (flags & EVFLAG_FORKCHECK) 1101 if (flags & EVFLAG_FORKCHECK)
1034 curpid = getpid (); 1102 curpid = getpid ();
… …
1040 flags = atoi (getenv ("LIBEV_FLAGS")); 1108 flags = atoi (getenv ("LIBEV_FLAGS"));
1041 1109
1042 if (!(flags & 0x0000ffffUL)) 1110 if (!(flags & 0x0000ffffUL))
1043 flags |= ev_recommended_backends (); 1111 flags |= ev_recommended_backends ();
1044 1112
1045 backend = 0;
1046 backend_fd = -1;
1047#if EV_USE_INOTIFY
1048 fs_fd = -2;
1049#endif
1050
1051#if EV_USE_PORT 1113#if EV_USE_PORT
1052 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1114 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1053#endif 1115#endif
1054#if EV_USE_KQUEUE 1116#if EV_USE_KQUEUE
1055 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1117 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1062#endif 1124#endif
1063#if EV_USE_SELECT 1125#if EV_USE_SELECT
1064 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1126 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1065#endif 1127#endif
1066 1128
1067 ev_init (&sigev, sigcb); 1129 ev_init (&pipeev, pipecb);
1068 ev_set_priority (&sigev, EV_MAXPRI); 1130 ev_set_priority (&pipeev, EV_MAXPRI);
1069 } 1131 }
1070} 1132}
1071 1133
1072static void noinline 1134static void noinline
1073loop_destroy (EV_P) 1135loop_destroy (EV_P)
1074{ 1136{
1075 int i; 1137 int i;
1138
1139 if (ev_is_active (&pipeev))
1140 {
1141 ev_ref (EV_A); /* signal watcher */
1142 ev_io_stop (EV_A_ &pipeev);
1143
1144 close (evpipe [0]); evpipe [0] = 0;
1145 close (evpipe [1]); evpipe [1] = 0;
1146 }
1076 1147
1077#if EV_USE_INOTIFY 1148#if EV_USE_INOTIFY
1078 if (fs_fd >= 0) 1149 if (fs_fd >= 0)
1079 close (fs_fd); 1150 close (fs_fd);
1080#endif 1151#endif
… …
1117#if EV_FORK_ENABLE 1188#if EV_FORK_ENABLE
1118 array_free (fork, EMPTY); 1189 array_free (fork, EMPTY);
1119#endif 1190#endif
1120 array_free (prepare, EMPTY); 1191 array_free (prepare, EMPTY);
1121 array_free (check, EMPTY); 1192 array_free (check, EMPTY);
1193#if EV_ASYNC_ENABLE
1194 array_free (async, EMPTY);
1195#endif
1122 1196
1123 backend = 0; 1197 backend = 0;
1124} 1198}
1125 1199
1126void inline_size infy_fork (EV_P); 1200void inline_size infy_fork (EV_P);
… …
1139#endif 1213#endif
1140#if EV_USE_INOTIFY 1214#if EV_USE_INOTIFY
1141 infy_fork (EV_A); 1215 infy_fork (EV_A);
1142#endif 1216#endif
1143 1217
1144 if (ev_is_active (&sigev)) 1218 if (ev_is_active (&pipeev))
1145 { 1219 {
1146 /* default loop */ 1220 /* this "locks" the handlers against writing to the pipe */
1221 /* while we modify the fd vars */
1222 gotsig = 1;
1223#if EV_ASYNC_ENABLE
1224 gotasync = 1;
1225#endif
1147 1226
1148 ev_ref (EV_A); 1227 ev_ref (EV_A);
1149 ev_io_stop (EV_A_ &sigev); 1228 ev_io_stop (EV_A_ &pipeev);
1150 close (sigpipe [0]); 1229 close (evpipe [0]);
1151 close (sigpipe [1]); 1230 close (evpipe [1]);
1152 1231
1153 while (pipe (sigpipe))
1154 syserr ("(libev) error creating pipe");
1155
1156 siginit (EV_A); 1232 evpipe_init (EV_A);
1233 /* now iterate over everything, in case we missed something */
1234 pipecb (EV_A_ &pipeev, EV_READ);
1157 } 1235 }
1158 1236
1159 postfork = 0; 1237 postfork = 0;
1160} 1238}
1161 1239
… …
1183} 1261}
1184 1262
1185void 1263void
1186ev_loop_fork (EV_P) 1264ev_loop_fork (EV_P)
1187{ 1265{
1188 postfork = 1; 1266 postfork = 1; /* must be in line with ev_default_fork */
1189} 1267}
1190 1268
1191#endif 1269#endif
1192 1270
1193#if EV_MULTIPLICITY 1271#if EV_MULTIPLICITY
… …
1196#else 1274#else
1197int 1275int
1198ev_default_loop (unsigned int flags) 1276ev_default_loop (unsigned int flags)
1199#endif 1277#endif
1200{ 1278{
1201 if (sigpipe [0] == sigpipe [1])
1202 if (pipe (sigpipe))
1203 return 0;
1204
1205 if (!ev_default_loop_ptr) 1279 if (!ev_default_loop_ptr)
1206 { 1280 {
1207#if EV_MULTIPLICITY 1281#if EV_MULTIPLICITY
1208 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1282 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1209#else 1283#else
… …
1212 1286
1213 loop_init (EV_A_ flags); 1287 loop_init (EV_A_ flags);
1214 1288
1215 if (ev_backend (EV_A)) 1289 if (ev_backend (EV_A))
1216 { 1290 {
1217 siginit (EV_A);
1218
1219#ifndef _WIN32 1291#ifndef _WIN32
1220 ev_signal_init (&childev, childcb, SIGCHLD); 1292 ev_signal_init (&childev, childcb, SIGCHLD);
1221 ev_set_priority (&childev, EV_MAXPRI); 1293 ev_set_priority (&childev, EV_MAXPRI);
1222 ev_signal_start (EV_A_ &childev); 1294 ev_signal_start (EV_A_ &childev);
1223 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1295 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1240#ifndef _WIN32 1312#ifndef _WIN32
1241 ev_ref (EV_A); /* child watcher */ 1313 ev_ref (EV_A); /* child watcher */
1242 ev_signal_stop (EV_A_ &childev); 1314 ev_signal_stop (EV_A_ &childev);
1243#endif 1315#endif
1244 1316
1245 ev_ref (EV_A); /* signal watcher */
1246 ev_io_stop (EV_A_ &sigev);
1247
1248 close (sigpipe [0]); sigpipe [0] = 0;
1249 close (sigpipe [1]); sigpipe [1] = 0;
1250
1251 loop_destroy (EV_A); 1317 loop_destroy (EV_A);
1252} 1318}
1253 1319
1254void 1320void
1255ev_default_fork (void) 1321ev_default_fork (void)
… …
1257#if EV_MULTIPLICITY 1323#if EV_MULTIPLICITY
1258 struct ev_loop *loop = ev_default_loop_ptr; 1324 struct ev_loop *loop = ev_default_loop_ptr;
1259#endif 1325#endif
1260 1326
1261 if (backend) 1327 if (backend)
1262 postfork = 1; 1328 postfork = 1; /* must be in line with ev_loop_fork */
1263} 1329}
1264 1330
1265/*****************************************************************************/ 1331/*****************************************************************************/
1266 1332
1267void 1333void
… …
1841#endif 1907#endif
1842 if (expect_false (ev_is_active (w))) 1908 if (expect_false (ev_is_active (w)))
1843 return; 1909 return;
1844 1910
1845 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1911 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1912
1913 evpipe_init (EV_A);
1846 1914
1847 { 1915 {
1848#ifndef _WIN32 1916#ifndef _WIN32
1849 sigset_t full, prev; 1917 sigset_t full, prev;
1850 sigfillset (&full); 1918 sigfillset (&full);
… …
2364 2432
2365 ev_stop (EV_A_ (W)w); 2433 ev_stop (EV_A_ (W)w);
2366} 2434}
2367#endif 2435#endif
2368 2436
2437#if EV_ASYNC_ENABLE
2438void
2439ev_async_start (EV_P_ ev_async *w)
2440{
2441 if (expect_false (ev_is_active (w)))
2442 return;
2443
2444 evpipe_init (EV_A);
2445
2446 ev_start (EV_A_ (W)w, ++asynccnt);
2447 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2448 asyncs [asynccnt - 1] = w;
2449}
2450
2451void
2452ev_async_stop (EV_P_ ev_async *w)
2453{
2454 clear_pending (EV_A_ (W)w);
2455 if (expect_false (!ev_is_active (w)))
2456 return;
2457
2458 {
2459 int active = ((W)w)->active;
2460 asyncs [active - 1] = asyncs [--asynccnt];
2461 ((W)asyncs [active - 1])->active = active;
2462 }
2463
2464 ev_stop (EV_A_ (W)w);
2465}
2466
2467void
2468ev_async_send (EV_P_ ev_async *w)
2469{
2470 w->sent = 1;
2471 evpipe_write (EV_A_ &gotasync);
2472}
2473#endif
2474
2369/*****************************************************************************/ 2475/*****************************************************************************/
2370 2476
2371struct ev_once 2477struct ev_once
2372{ 2478{
2373 ev_io io; 2479 ev_io io;

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