… | |
… | |
39 | |
39 | |
40 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
41 | extern "C" { |
41 | extern "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 |
|
|
275 | extern "C" { |
|
|
276 | # endif |
|
|
277 | int eventfd (unsigned int initval, int flags); |
|
|
278 | # ifdef __cplusplus |
|
|
279 | } |
|
|
280 | # endif |
244 | #endif |
281 | #endif |
245 | |
282 | |
246 | /**/ |
283 | /**/ |
247 | |
284 | |
248 | /* |
285 | /* |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
488 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
489 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
490 | |
454 | nanosleep (&ts, 0); |
491 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
492 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
493 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
494 | #else |
458 | struct timeval tv; |
495 | struct timeval tv; |
459 | |
496 | |
460 | tv.tv_sec = (time_t)delay; |
497 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
498 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
802 | static void noinline |
839 | static void noinline |
803 | evpipe_init (EV_P) |
840 | evpipe_init (EV_P) |
804 | { |
841 | { |
805 | if (!ev_is_active (&pipeev)) |
842 | if (!ev_is_active (&pipeev)) |
806 | { |
843 | { |
|
|
844 | #if EV_USE_EVENTFD |
|
|
845 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
846 | { |
|
|
847 | evpipe [0] = -1; |
|
|
848 | fd_intern (evfd); |
|
|
849 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
850 | } |
|
|
851 | else |
|
|
852 | #endif |
|
|
853 | { |
807 | while (pipe (evpipe)) |
854 | while (pipe (evpipe)) |
808 | syserr ("(libev) error creating signal/async pipe"); |
855 | syserr ("(libev) error creating signal/async pipe"); |
809 | |
856 | |
810 | fd_intern (evpipe [0]); |
857 | fd_intern (evpipe [0]); |
811 | fd_intern (evpipe [1]); |
858 | fd_intern (evpipe [1]); |
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
860 | } |
|
|
861 | |
814 | ev_io_start (EV_A_ &pipeev); |
862 | ev_io_start (EV_A_ &pipeev); |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
816 | |
|
|
817 | /* in case we received the signal before we had the chance of installing a handler */ |
|
|
818 | ev_feed_event (EV_A_ &pipeev, 0); |
|
|
819 | } |
864 | } |
820 | } |
865 | } |
821 | |
866 | |
822 | void inline_size |
867 | void inline_size |
823 | evpipe_write (EV_P_ int sig, int async) |
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
824 | { |
869 | { |
825 | if (!(gotasync || gotsig)) |
870 | if (!*flag) |
826 | { |
871 | { |
827 | int old_errno = errno; /* save errno becaue write might clobber it */ |
872 | int old_errno = errno; /* save errno because write might clobber it */ |
828 | |
873 | |
829 | if (sig) gotsig = 1; |
874 | *flag = 1; |
830 | if (async) gotasync = 1; |
|
|
831 | |
875 | |
|
|
876 | #if EV_USE_EVENTFD |
|
|
877 | if (evfd >= 0) |
|
|
878 | { |
|
|
879 | uint64_t counter = 1; |
|
|
880 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
881 | } |
|
|
882 | else |
|
|
883 | #endif |
832 | write (evpipe [1], &old_errno, 1); |
884 | write (evpipe [1], &old_errno, 1); |
833 | |
885 | |
834 | errno = old_errno; |
886 | errno = old_errno; |
835 | } |
887 | } |
836 | } |
888 | } |
837 | |
889 | |
838 | static void |
890 | static void |
839 | pipecb (EV_P_ ev_io *iow, int revents) |
891 | pipecb (EV_P_ ev_io *iow, int revents) |
840 | { |
892 | { |
|
|
893 | #if EV_USE_EVENTFD |
|
|
894 | if (evfd >= 0) |
841 | { |
895 | { |
842 | int dummy; |
896 | uint64_t counter = 1; |
|
|
897 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
898 | } |
|
|
899 | else |
|
|
900 | #endif |
|
|
901 | { |
|
|
902 | char dummy; |
843 | read (evpipe [0], &dummy, 1); |
903 | read (evpipe [0], &dummy, 1); |
844 | } |
904 | } |
845 | |
905 | |
846 | if (gotsig && ev_is_default_loop (EV_A)) |
906 | if (gotsig && ev_is_default_loop (EV_A)) |
847 | { |
907 | { |
848 | int signum; |
908 | int signum; |
849 | gotsig = 0; |
909 | gotsig = 0; |
… | |
… | |
870 | } |
930 | } |
871 | |
931 | |
872 | /*****************************************************************************/ |
932 | /*****************************************************************************/ |
873 | |
933 | |
874 | static void |
934 | static void |
875 | sighandler (int signum) |
935 | ev_sighandler (int signum) |
876 | { |
936 | { |
877 | #if EV_MULTIPLICITY |
937 | #if EV_MULTIPLICITY |
878 | struct ev_loop *loop = &default_loop_struct; |
938 | struct ev_loop *loop = &default_loop_struct; |
879 | #endif |
939 | #endif |
880 | |
940 | |
881 | #if _WIN32 |
941 | #if _WIN32 |
882 | signal (signum, sighandler); |
942 | signal (signum, ev_sighandler); |
883 | #endif |
943 | #endif |
884 | |
944 | |
885 | signals [signum - 1].gotsig = 1; |
945 | signals [signum - 1].gotsig = 1; |
886 | evpipe_write (EV_A_ 1, 0); |
946 | evpipe_write (EV_A_ &gotsig); |
887 | } |
947 | } |
888 | |
948 | |
889 | void noinline |
949 | void noinline |
890 | ev_feed_signal_event (EV_P_ int signum) |
950 | ev_feed_signal_event (EV_P_ int signum) |
891 | { |
951 | { |
… | |
… | |
917 | #ifndef WIFCONTINUED |
977 | #ifndef WIFCONTINUED |
918 | # define WIFCONTINUED(status) 0 |
978 | # define WIFCONTINUED(status) 0 |
919 | #endif |
979 | #endif |
920 | |
980 | |
921 | void inline_speed |
981 | void inline_speed |
922 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
982 | child_reap (EV_P_ int chain, int pid, int status) |
923 | { |
983 | { |
924 | ev_child *w; |
984 | ev_child *w; |
925 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
926 | |
986 | |
927 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
987 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
928 | { |
988 | { |
929 | if ((w->pid == pid || !w->pid) |
989 | if ((w->pid == pid || !w->pid) |
930 | && (!traced || (w->flags & 1))) |
990 | && (!traced || (w->flags & 1))) |
931 | { |
991 | { |
932 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
992 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
933 | w->rpid = pid; |
993 | w->rpid = pid; |
934 | w->rstatus = status; |
994 | w->rstatus = status; |
935 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
995 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
936 | } |
996 | } |
937 | } |
997 | } |
… | |
… | |
951 | if (!WCONTINUED |
1011 | if (!WCONTINUED |
952 | || errno != EINVAL |
1012 | || errno != EINVAL |
953 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1013 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
954 | return; |
1014 | return; |
955 | |
1015 | |
956 | /* make sure we are called again until all childs have been reaped */ |
1016 | /* make sure we are called again until all children have been reaped */ |
957 | /* we need to do it this way so that the callback gets called before we continue */ |
1017 | /* we need to do it this way so that the callback gets called before we continue */ |
958 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1018 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
959 | |
1019 | |
960 | child_reap (EV_A_ sw, pid, pid, status); |
1020 | child_reap (EV_A_ pid, pid, status); |
961 | if (EV_PID_HASHSIZE > 1) |
1021 | if (EV_PID_HASHSIZE > 1) |
962 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1022 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
963 | } |
1023 | } |
964 | |
1024 | |
965 | #endif |
1025 | #endif |
966 | |
1026 | |
967 | /*****************************************************************************/ |
1027 | /*****************************************************************************/ |
… | |
… | |
1144 | if (ev_is_active (&pipeev)) |
1204 | if (ev_is_active (&pipeev)) |
1145 | { |
1205 | { |
1146 | ev_ref (EV_A); /* signal watcher */ |
1206 | ev_ref (EV_A); /* signal watcher */ |
1147 | ev_io_stop (EV_A_ &pipeev); |
1207 | ev_io_stop (EV_A_ &pipeev); |
1148 | |
1208 | |
1149 | close (evpipe [0]); evpipe [0] = 0; |
1209 | #if EV_USE_EVENTFD |
1150 | close (evpipe [1]); evpipe [1] = 0; |
1210 | if (evfd >= 0) |
|
|
1211 | close (evfd); |
|
|
1212 | #endif |
|
|
1213 | |
|
|
1214 | if (evpipe [0] >= 0) |
|
|
1215 | { |
|
|
1216 | close (evpipe [0]); |
|
|
1217 | close (evpipe [1]); |
|
|
1218 | } |
1151 | } |
1219 | } |
1152 | |
1220 | |
1153 | #if EV_USE_INOTIFY |
1221 | #if EV_USE_INOTIFY |
1154 | if (fs_fd >= 0) |
1222 | if (fs_fd >= 0) |
1155 | close (fs_fd); |
1223 | close (fs_fd); |
… | |
… | |
1221 | #endif |
1289 | #endif |
1222 | |
1290 | |
1223 | if (ev_is_active (&pipeev)) |
1291 | if (ev_is_active (&pipeev)) |
1224 | { |
1292 | { |
1225 | /* this "locks" the handlers against writing to the pipe */ |
1293 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1294 | /* while we modify the fd vars */ |
|
|
1295 | gotsig = 1; |
|
|
1296 | #if EV_ASYNC_ENABLE |
1226 | gotsig = gotasync = 1; |
1297 | gotasync = 1; |
|
|
1298 | #endif |
1227 | |
1299 | |
1228 | ev_ref (EV_A); |
1300 | ev_ref (EV_A); |
1229 | ev_io_stop (EV_A_ &pipeev); |
1301 | ev_io_stop (EV_A_ &pipeev); |
|
|
1302 | |
|
|
1303 | #if EV_USE_EVENTFD |
|
|
1304 | if (evfd >= 0) |
|
|
1305 | close (evfd); |
|
|
1306 | #endif |
|
|
1307 | |
|
|
1308 | if (evpipe [0] >= 0) |
|
|
1309 | { |
1230 | close (evpipe [0]); |
1310 | close (evpipe [0]); |
1231 | close (evpipe [1]); |
1311 | close (evpipe [1]); |
|
|
1312 | } |
1232 | |
1313 | |
1233 | evpipe_init (EV_A); |
1314 | evpipe_init (EV_A); |
1234 | /* now iterate over everything, in case we missed something */ |
1315 | /* now iterate over everything, in case we missed something */ |
1235 | pipecb (EV_A_ &pipeev, EV_READ); |
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
1236 | } |
1317 | } |
… | |
… | |
1543 | static int loop_done; |
1624 | static int loop_done; |
1544 | |
1625 | |
1545 | void |
1626 | void |
1546 | ev_loop (EV_P_ int flags) |
1627 | ev_loop (EV_P_ int flags) |
1547 | { |
1628 | { |
1548 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1629 | loop_done = EVUNLOOP_CANCEL; |
1549 | ? EVUNLOOP_ONE |
|
|
1550 | : EVUNLOOP_CANCEL; |
|
|
1551 | |
1630 | |
1552 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1553 | |
1632 | |
1554 | do |
1633 | do |
1555 | { |
1634 | { |
… | |
… | |
1651 | /* queue check watchers, to be executed first */ |
1730 | /* queue check watchers, to be executed first */ |
1652 | if (expect_false (checkcnt)) |
1731 | if (expect_false (checkcnt)) |
1653 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1654 | |
1733 | |
1655 | call_pending (EV_A); |
1734 | call_pending (EV_A); |
1656 | |
|
|
1657 | } |
1735 | } |
1658 | while (expect_true (activecnt && !loop_done)); |
1736 | while (expect_true ( |
|
|
1737 | activecnt |
|
|
1738 | && !loop_done |
|
|
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1740 | )); |
1659 | |
1741 | |
1660 | if (loop_done == EVUNLOOP_ONE) |
1742 | if (loop_done == EVUNLOOP_ONE) |
1661 | loop_done = EVUNLOOP_CANCEL; |
1743 | loop_done = EVUNLOOP_CANCEL; |
1662 | } |
1744 | } |
1663 | |
1745 | |
… | |
… | |
1931 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2013 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1932 | |
2014 | |
1933 | if (!((WL)w)->next) |
2015 | if (!((WL)w)->next) |
1934 | { |
2016 | { |
1935 | #if _WIN32 |
2017 | #if _WIN32 |
1936 | signal (w->signum, sighandler); |
2018 | signal (w->signum, ev_sighandler); |
1937 | #else |
2019 | #else |
1938 | struct sigaction sa; |
2020 | struct sigaction sa; |
1939 | sa.sa_handler = sighandler; |
2021 | sa.sa_handler = ev_sighandler; |
1940 | sigfillset (&sa.sa_mask); |
2022 | sigfillset (&sa.sa_mask); |
1941 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1942 | sigaction (w->signum, &sa, 0); |
2024 | sigaction (w->signum, &sa, 0); |
1943 | #endif |
2025 | #endif |
1944 | } |
2026 | } |
… | |
… | |
2467 | |
2549 | |
2468 | void |
2550 | void |
2469 | ev_async_send (EV_P_ ev_async *w) |
2551 | ev_async_send (EV_P_ ev_async *w) |
2470 | { |
2552 | { |
2471 | w->sent = 1; |
2553 | w->sent = 1; |
2472 | evpipe_write (EV_A_ 0, 1); |
2554 | evpipe_write (EV_A_ &gotasync); |
2473 | } |
2555 | } |
2474 | #endif |
2556 | #endif |
2475 | |
2557 | |
2476 | /*****************************************************************************/ |
2558 | /*****************************************************************************/ |
2477 | |
2559 | |