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 | * |
… | |
… | |
291 | typedef ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
292 | |
292 | |
293 | #if EV_USE_MONOTONIC |
293 | #if EV_USE_MONOTONIC |
294 | /* 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 */ |
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
297 | #endif |
297 | #endif |
298 | |
298 | |
299 | #ifdef _WIN32 |
299 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
300 | # include "ev_win32.c" |
301 | #endif |
301 | #endif |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
451 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
453 | |
454 | nanosleep (&ts, 0); |
454 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
455 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
456 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
457 | #else |
458 | struct timeval tv; |
458 | struct timeval tv; |
459 | |
459 | |
460 | tv.tv_sec = (time_t)delay; |
460 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
600 | |
600 | |
601 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
602 | if (events) |
603 | { |
603 | { |
604 | 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 |
605 | anfd->handle = _get_osfhandle (fd); |
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
606 | 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)); |
607 | } |
611 | } |
608 | #endif |
612 | #endif |
609 | |
613 | |
610 | { |
614 | { |
… | |
… | |
759 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
760 | |
764 | |
761 | typedef struct |
765 | typedef struct |
762 | { |
766 | { |
763 | WL head; |
767 | WL head; |
764 | sig_atomic_t volatile gotsig; |
768 | EV_ATOMIC_T gotsig; |
765 | } ANSIG; |
769 | } ANSIG; |
766 | |
770 | |
767 | static ANSIG *signals; |
771 | static ANSIG *signals; |
768 | static int signalmax; |
772 | static int signalmax; |
769 | |
773 | |
770 | static int sigpipe [2]; |
774 | static EV_ATOMIC_T gotsig; |
771 | static sig_atomic_t volatile gotsig; |
|
|
772 | static ev_io sigev; |
|
|
773 | |
775 | |
774 | void inline_size |
776 | void inline_size |
775 | signals_init (ANSIG *base, int count) |
777 | signals_init (ANSIG *base, int count) |
776 | { |
778 | { |
777 | while (count--) |
779 | while (count--) |
… | |
… | |
781 | |
783 | |
782 | ++base; |
784 | ++base; |
783 | } |
785 | } |
784 | } |
786 | } |
785 | |
787 | |
786 | static void |
788 | /*****************************************************************************/ |
787 | sighandler (int signum) |
|
|
788 | { |
|
|
789 | #if _WIN32 |
|
|
790 | signal (signum, sighandler); |
|
|
791 | #endif |
|
|
792 | |
|
|
793 | signals [signum - 1].gotsig = 1; |
|
|
794 | |
|
|
795 | if (!gotsig) |
|
|
796 | { |
|
|
797 | int old_errno = errno; |
|
|
798 | gotsig = 1; |
|
|
799 | write (sigpipe [1], &signum, 1); |
|
|
800 | errno = old_errno; |
|
|
801 | } |
|
|
802 | } |
|
|
803 | |
|
|
804 | void noinline |
|
|
805 | ev_feed_signal_event (EV_P_ int signum) |
|
|
806 | { |
|
|
807 | WL w; |
|
|
808 | |
|
|
809 | #if EV_MULTIPLICITY |
|
|
810 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | --signum; |
|
|
814 | |
|
|
815 | if (signum < 0 || signum >= signalmax) |
|
|
816 | return; |
|
|
817 | |
|
|
818 | signals [signum].gotsig = 0; |
|
|
819 | |
|
|
820 | for (w = signals [signum].head; w; w = w->next) |
|
|
821 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
822 | } |
|
|
823 | |
|
|
824 | static void |
|
|
825 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
826 | { |
|
|
827 | int signum; |
|
|
828 | |
|
|
829 | read (sigpipe [0], &revents, 1); |
|
|
830 | gotsig = 0; |
|
|
831 | |
|
|
832 | for (signum = signalmax; signum--; ) |
|
|
833 | if (signals [signum].gotsig) |
|
|
834 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
835 | } |
|
|
836 | |
789 | |
837 | void inline_speed |
790 | void inline_speed |
838 | fd_intern (int fd) |
791 | fd_intern (int fd) |
839 | { |
792 | { |
840 | #ifdef _WIN32 |
793 | #ifdef _WIN32 |
… | |
… | |
845 | fcntl (fd, F_SETFL, O_NONBLOCK); |
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
846 | #endif |
799 | #endif |
847 | } |
800 | } |
848 | |
801 | |
849 | static void noinline |
802 | static void noinline |
850 | siginit (EV_P) |
803 | evpipe_init (EV_P) |
851 | { |
804 | { |
|
|
805 | if (!ev_is_active (&pipeev)) |
|
|
806 | { |
|
|
807 | while (pipe (evpipe)) |
|
|
808 | syserr ("(libev) error creating signal/async pipe"); |
|
|
809 | |
852 | fd_intern (sigpipe [0]); |
810 | fd_intern (evpipe [0]); |
853 | fd_intern (sigpipe [1]); |
811 | fd_intern (evpipe [1]); |
854 | |
812 | |
855 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
856 | ev_io_start (EV_A_ &sigev); |
814 | ev_io_start (EV_A_ &pipeev); |
857 | 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 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_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 | |
|
|
833 | static void |
|
|
834 | pipecb (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 |
858 | } |
865 | } |
859 | |
866 | |
860 | /*****************************************************************************/ |
867 | /*****************************************************************************/ |
861 | |
868 | |
|
|
869 | static void |
|
|
870 | ev_sighandler (int signum) |
|
|
871 | { |
|
|
872 | #if EV_MULTIPLICITY |
|
|
873 | struct ev_loop *loop = &default_loop_struct; |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | #if _WIN32 |
|
|
877 | signal (signum, ev_sighandler); |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | signals [signum - 1].gotsig = 1; |
|
|
881 | evpipe_write (EV_A_ &gotsig); |
|
|
882 | } |
|
|
883 | |
|
|
884 | void noinline |
|
|
885 | ev_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 | |
862 | static WL childs [EV_PID_HASHSIZE]; |
906 | static WL childs [EV_PID_HASHSIZE]; |
863 | |
907 | |
864 | #ifndef _WIN32 |
908 | #ifndef _WIN32 |
865 | |
909 | |
866 | static ev_signal childev; |
910 | static ev_signal childev; |
867 | |
911 | |
|
|
912 | #ifndef WIFCONTINUED |
|
|
913 | # define WIFCONTINUED(status) 0 |
|
|
914 | #endif |
|
|
915 | |
868 | void inline_speed |
916 | void inline_speed |
869 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
917 | child_reap (EV_P_ int chain, int pid, int status) |
870 | { |
918 | { |
871 | ev_child *w; |
919 | ev_child *w; |
|
|
920 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
872 | |
921 | |
873 | 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 | { |
874 | if (w->pid == pid || !w->pid) |
924 | if ((w->pid == pid || !w->pid) |
|
|
925 | && (!traced || (w->flags & 1))) |
875 | { |
926 | { |
876 | 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 */ |
877 | w->rpid = pid; |
928 | w->rpid = pid; |
878 | w->rstatus = status; |
929 | w->rstatus = status; |
879 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
930 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
880 | } |
931 | } |
|
|
932 | } |
881 | } |
933 | } |
882 | |
934 | |
883 | #ifndef WCONTINUED |
935 | #ifndef WCONTINUED |
884 | # define WCONTINUED 0 |
936 | # define WCONTINUED 0 |
885 | #endif |
937 | #endif |
… | |
… | |
894 | if (!WCONTINUED |
946 | if (!WCONTINUED |
895 | || errno != EINVAL |
947 | || errno != EINVAL |
896 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
948 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
897 | return; |
949 | return; |
898 | |
950 | |
899 | /* 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 */ |
900 | /* 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 */ |
901 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
953 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
902 | |
954 | |
903 | child_reap (EV_A_ sw, pid, pid, status); |
955 | child_reap (EV_A_ pid, pid, status); |
904 | if (EV_PID_HASHSIZE > 1) |
956 | if (EV_PID_HASHSIZE > 1) |
905 | 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 */ |
906 | } |
958 | } |
907 | |
959 | |
908 | #endif |
960 | #endif |
909 | |
961 | |
910 | /*****************************************************************************/ |
962 | /*****************************************************************************/ |
… | |
… | |
1028 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1080 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1029 | have_monotonic = 1; |
1081 | have_monotonic = 1; |
1030 | } |
1082 | } |
1031 | #endif |
1083 | #endif |
1032 | |
1084 | |
1033 | ev_rt_now = ev_time (); |
1085 | ev_rt_now = ev_time (); |
1034 | mn_now = get_clock (); |
1086 | mn_now = get_clock (); |
1035 | now_floor = mn_now; |
1087 | now_floor = mn_now; |
1036 | rtmn_diff = ev_rt_now - mn_now; |
1088 | rtmn_diff = ev_rt_now - mn_now; |
1037 | |
1089 | |
1038 | io_blocktime = 0.; |
1090 | io_blocktime = 0.; |
1039 | 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 |
1040 | |
1098 | |
1041 | /* pid check not overridable via env */ |
1099 | /* pid check not overridable via env */ |
1042 | #ifndef _WIN32 |
1100 | #ifndef _WIN32 |
1043 | if (flags & EVFLAG_FORKCHECK) |
1101 | if (flags & EVFLAG_FORKCHECK) |
1044 | curpid = getpid (); |
1102 | curpid = getpid (); |
… | |
… | |
1050 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1108 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1051 | |
1109 | |
1052 | if (!(flags & 0x0000ffffUL)) |
1110 | if (!(flags & 0x0000ffffUL)) |
1053 | flags |= ev_recommended_backends (); |
1111 | flags |= ev_recommended_backends (); |
1054 | |
1112 | |
1055 | backend = 0; |
|
|
1056 | backend_fd = -1; |
|
|
1057 | #if EV_USE_INOTIFY |
|
|
1058 | fs_fd = -2; |
|
|
1059 | #endif |
|
|
1060 | |
|
|
1061 | #if EV_USE_PORT |
1113 | #if EV_USE_PORT |
1062 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1114 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1063 | #endif |
1115 | #endif |
1064 | #if EV_USE_KQUEUE |
1116 | #if EV_USE_KQUEUE |
1065 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1117 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1072 | #endif |
1124 | #endif |
1073 | #if EV_USE_SELECT |
1125 | #if EV_USE_SELECT |
1074 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1126 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1075 | #endif |
1127 | #endif |
1076 | |
1128 | |
1077 | ev_init (&sigev, sigcb); |
1129 | ev_init (&pipeev, pipecb); |
1078 | ev_set_priority (&sigev, EV_MAXPRI); |
1130 | ev_set_priority (&pipeev, EV_MAXPRI); |
1079 | } |
1131 | } |
1080 | } |
1132 | } |
1081 | |
1133 | |
1082 | static void noinline |
1134 | static void noinline |
1083 | loop_destroy (EV_P) |
1135 | loop_destroy (EV_P) |
1084 | { |
1136 | { |
1085 | 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 | } |
1086 | |
1147 | |
1087 | #if EV_USE_INOTIFY |
1148 | #if EV_USE_INOTIFY |
1088 | if (fs_fd >= 0) |
1149 | if (fs_fd >= 0) |
1089 | close (fs_fd); |
1150 | close (fs_fd); |
1090 | #endif |
1151 | #endif |
… | |
… | |
1127 | #if EV_FORK_ENABLE |
1188 | #if EV_FORK_ENABLE |
1128 | array_free (fork, EMPTY); |
1189 | array_free (fork, EMPTY); |
1129 | #endif |
1190 | #endif |
1130 | array_free (prepare, EMPTY); |
1191 | array_free (prepare, EMPTY); |
1131 | array_free (check, EMPTY); |
1192 | array_free (check, EMPTY); |
|
|
1193 | #if EV_ASYNC_ENABLE |
|
|
1194 | array_free (async, EMPTY); |
|
|
1195 | #endif |
1132 | |
1196 | |
1133 | backend = 0; |
1197 | backend = 0; |
1134 | } |
1198 | } |
1135 | |
1199 | |
1136 | void inline_size infy_fork (EV_P); |
1200 | void inline_size infy_fork (EV_P); |
… | |
… | |
1149 | #endif |
1213 | #endif |
1150 | #if EV_USE_INOTIFY |
1214 | #if EV_USE_INOTIFY |
1151 | infy_fork (EV_A); |
1215 | infy_fork (EV_A); |
1152 | #endif |
1216 | #endif |
1153 | |
1217 | |
1154 | if (ev_is_active (&sigev)) |
1218 | if (ev_is_active (&pipeev)) |
1155 | { |
1219 | { |
1156 | /* 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 |
1157 | |
1226 | |
1158 | ev_ref (EV_A); |
1227 | ev_ref (EV_A); |
1159 | ev_io_stop (EV_A_ &sigev); |
1228 | ev_io_stop (EV_A_ &pipeev); |
1160 | close (sigpipe [0]); |
1229 | close (evpipe [0]); |
1161 | close (sigpipe [1]); |
1230 | close (evpipe [1]); |
1162 | |
1231 | |
1163 | while (pipe (sigpipe)) |
|
|
1164 | syserr ("(libev) error creating pipe"); |
|
|
1165 | |
|
|
1166 | 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); |
1167 | } |
1235 | } |
1168 | |
1236 | |
1169 | postfork = 0; |
1237 | postfork = 0; |
1170 | } |
1238 | } |
1171 | |
1239 | |
… | |
… | |
1193 | } |
1261 | } |
1194 | |
1262 | |
1195 | void |
1263 | void |
1196 | ev_loop_fork (EV_P) |
1264 | ev_loop_fork (EV_P) |
1197 | { |
1265 | { |
1198 | postfork = 1; |
1266 | postfork = 1; /* must be in line with ev_default_fork */ |
1199 | } |
1267 | } |
1200 | |
1268 | |
1201 | #endif |
1269 | #endif |
1202 | |
1270 | |
1203 | #if EV_MULTIPLICITY |
1271 | #if EV_MULTIPLICITY |
… | |
… | |
1206 | #else |
1274 | #else |
1207 | int |
1275 | int |
1208 | ev_default_loop (unsigned int flags) |
1276 | ev_default_loop (unsigned int flags) |
1209 | #endif |
1277 | #endif |
1210 | { |
1278 | { |
1211 | if (sigpipe [0] == sigpipe [1]) |
|
|
1212 | if (pipe (sigpipe)) |
|
|
1213 | return 0; |
|
|
1214 | |
|
|
1215 | if (!ev_default_loop_ptr) |
1279 | if (!ev_default_loop_ptr) |
1216 | { |
1280 | { |
1217 | #if EV_MULTIPLICITY |
1281 | #if EV_MULTIPLICITY |
1218 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1282 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1219 | #else |
1283 | #else |
… | |
… | |
1222 | |
1286 | |
1223 | loop_init (EV_A_ flags); |
1287 | loop_init (EV_A_ flags); |
1224 | |
1288 | |
1225 | if (ev_backend (EV_A)) |
1289 | if (ev_backend (EV_A)) |
1226 | { |
1290 | { |
1227 | siginit (EV_A); |
|
|
1228 | |
|
|
1229 | #ifndef _WIN32 |
1291 | #ifndef _WIN32 |
1230 | ev_signal_init (&childev, childcb, SIGCHLD); |
1292 | ev_signal_init (&childev, childcb, SIGCHLD); |
1231 | ev_set_priority (&childev, EV_MAXPRI); |
1293 | ev_set_priority (&childev, EV_MAXPRI); |
1232 | ev_signal_start (EV_A_ &childev); |
1294 | ev_signal_start (EV_A_ &childev); |
1233 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1295 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1250 | #ifndef _WIN32 |
1312 | #ifndef _WIN32 |
1251 | ev_ref (EV_A); /* child watcher */ |
1313 | ev_ref (EV_A); /* child watcher */ |
1252 | ev_signal_stop (EV_A_ &childev); |
1314 | ev_signal_stop (EV_A_ &childev); |
1253 | #endif |
1315 | #endif |
1254 | |
1316 | |
1255 | ev_ref (EV_A); /* signal watcher */ |
|
|
1256 | ev_io_stop (EV_A_ &sigev); |
|
|
1257 | |
|
|
1258 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1259 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1260 | |
|
|
1261 | loop_destroy (EV_A); |
1317 | loop_destroy (EV_A); |
1262 | } |
1318 | } |
1263 | |
1319 | |
1264 | void |
1320 | void |
1265 | ev_default_fork (void) |
1321 | ev_default_fork (void) |
… | |
… | |
1267 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
1268 | struct ev_loop *loop = ev_default_loop_ptr; |
1324 | struct ev_loop *loop = ev_default_loop_ptr; |
1269 | #endif |
1325 | #endif |
1270 | |
1326 | |
1271 | if (backend) |
1327 | if (backend) |
1272 | postfork = 1; |
1328 | postfork = 1; /* must be in line with ev_loop_fork */ |
1273 | } |
1329 | } |
1274 | |
1330 | |
1275 | /*****************************************************************************/ |
1331 | /*****************************************************************************/ |
1276 | |
1332 | |
1277 | void |
1333 | void |
… | |
… | |
1486 | static int loop_done; |
1542 | static int loop_done; |
1487 | |
1543 | |
1488 | void |
1544 | void |
1489 | ev_loop (EV_P_ int flags) |
1545 | ev_loop (EV_P_ int flags) |
1490 | { |
1546 | { |
1491 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1547 | loop_done = EVUNLOOP_CANCEL; |
1492 | ? EVUNLOOP_ONE |
|
|
1493 | : EVUNLOOP_CANCEL; |
|
|
1494 | |
1548 | |
1495 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1549 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1496 | |
1550 | |
1497 | do |
1551 | do |
1498 | { |
1552 | { |
… | |
… | |
1594 | /* queue check watchers, to be executed first */ |
1648 | /* queue check watchers, to be executed first */ |
1595 | if (expect_false (checkcnt)) |
1649 | if (expect_false (checkcnt)) |
1596 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1650 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1597 | |
1651 | |
1598 | call_pending (EV_A); |
1652 | call_pending (EV_A); |
1599 | |
|
|
1600 | } |
1653 | } |
1601 | while (expect_true (activecnt && !loop_done)); |
1654 | while (expect_true ( |
|
|
1655 | activecnt |
|
|
1656 | && !loop_done |
|
|
1657 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1658 | )); |
1602 | |
1659 | |
1603 | if (loop_done == EVUNLOOP_ONE) |
1660 | if (loop_done == EVUNLOOP_ONE) |
1604 | loop_done = EVUNLOOP_CANCEL; |
1661 | loop_done = EVUNLOOP_CANCEL; |
1605 | } |
1662 | } |
1606 | |
1663 | |
… | |
… | |
1852 | if (expect_false (ev_is_active (w))) |
1909 | if (expect_false (ev_is_active (w))) |
1853 | return; |
1910 | return; |
1854 | |
1911 | |
1855 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1912 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1856 | |
1913 | |
|
|
1914 | evpipe_init (EV_A); |
|
|
1915 | |
1857 | { |
1916 | { |
1858 | #ifndef _WIN32 |
1917 | #ifndef _WIN32 |
1859 | sigset_t full, prev; |
1918 | sigset_t full, prev; |
1860 | sigfillset (&full); |
1919 | sigfillset (&full); |
1861 | sigprocmask (SIG_SETMASK, &full, &prev); |
1920 | sigprocmask (SIG_SETMASK, &full, &prev); |
… | |
… | |
1872 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1931 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1873 | |
1932 | |
1874 | if (!((WL)w)->next) |
1933 | if (!((WL)w)->next) |
1875 | { |
1934 | { |
1876 | #if _WIN32 |
1935 | #if _WIN32 |
1877 | signal (w->signum, sighandler); |
1936 | signal (w->signum, ev_sighandler); |
1878 | #else |
1937 | #else |
1879 | struct sigaction sa; |
1938 | struct sigaction sa; |
1880 | sa.sa_handler = sighandler; |
1939 | sa.sa_handler = ev_sighandler; |
1881 | sigfillset (&sa.sa_mask); |
1940 | sigfillset (&sa.sa_mask); |
1882 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1941 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1883 | sigaction (w->signum, &sa, 0); |
1942 | sigaction (w->signum, &sa, 0); |
1884 | #endif |
1943 | #endif |
1885 | } |
1944 | } |
… | |
… | |
2374 | |
2433 | |
2375 | ev_stop (EV_A_ (W)w); |
2434 | ev_stop (EV_A_ (W)w); |
2376 | } |
2435 | } |
2377 | #endif |
2436 | #endif |
2378 | |
2437 | |
|
|
2438 | #if EV_ASYNC_ENABLE |
|
|
2439 | void |
|
|
2440 | ev_async_start (EV_P_ ev_async *w) |
|
|
2441 | { |
|
|
2442 | if (expect_false (ev_is_active (w))) |
|
|
2443 | return; |
|
|
2444 | |
|
|
2445 | evpipe_init (EV_A); |
|
|
2446 | |
|
|
2447 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2448 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2449 | asyncs [asynccnt - 1] = w; |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2454 | { |
|
|
2455 | clear_pending (EV_A_ (W)w); |
|
|
2456 | if (expect_false (!ev_is_active (w))) |
|
|
2457 | return; |
|
|
2458 | |
|
|
2459 | { |
|
|
2460 | int active = ((W)w)->active; |
|
|
2461 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2462 | ((W)asyncs [active - 1])->active = active; |
|
|
2463 | } |
|
|
2464 | |
|
|
2465 | ev_stop (EV_A_ (W)w); |
|
|
2466 | } |
|
|
2467 | |
|
|
2468 | void |
|
|
2469 | ev_async_send (EV_P_ ev_async *w) |
|
|
2470 | { |
|
|
2471 | w->sent = 1; |
|
|
2472 | evpipe_write (EV_A_ &gotasync); |
|
|
2473 | } |
|
|
2474 | #endif |
|
|
2475 | |
2379 | /*****************************************************************************/ |
2476 | /*****************************************************************************/ |
2380 | |
2477 | |
2381 | struct ev_once |
2478 | struct ev_once |
2382 | { |
2479 | { |
2383 | ev_io io; |
2480 | ev_io io; |