1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
39 | |
39 | |
40 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
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 | /* |
… | |
… | |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
264 | # define noinline __attribute__ ((noinline)) |
301 | # define noinline __attribute__ ((noinline)) |
265 | #else |
302 | #else |
266 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
267 | # define noinline |
304 | # define noinline |
268 | # if __STDC_VERSION__ < 199901L |
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
269 | # define inline |
306 | # define inline |
270 | # endif |
307 | # endif |
271 | #endif |
308 | #endif |
272 | |
309 | |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
288 | |
325 | |
289 | typedef ev_watcher *W; |
326 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
292 | |
329 | |
|
|
330 | #define ev_active(w) ((W)(w))->active |
|
|
331 | #define ev_at(w) ((WT)(w))->at |
|
|
332 | |
293 | #if EV_USE_MONOTONIC |
333 | #if EV_USE_MONOTONIC |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
335 | /* giving it a reasonably high chance of working on typical architetcures */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
297 | #endif |
337 | #endif |
298 | |
338 | |
299 | #ifdef _WIN32 |
339 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
340 | # include "ev_win32.c" |
301 | #endif |
341 | #endif |
… | |
… | |
323 | perror (msg); |
363 | perror (msg); |
324 | abort (); |
364 | abort (); |
325 | } |
365 | } |
326 | } |
366 | } |
327 | |
367 | |
|
|
368 | static void * |
|
|
369 | ev_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 | |
328 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
384 | |
330 | void |
385 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
387 | { |
333 | alloc = cb; |
388 | alloc = cb; |
334 | } |
389 | } |
335 | |
390 | |
336 | inline_speed void * |
391 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
338 | { |
393 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
340 | |
395 | |
341 | if (!ptr && size) |
396 | if (!ptr && size) |
342 | { |
397 | { |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
344 | abort (); |
399 | abort (); |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
506 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
507 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
508 | |
454 | nanosleep (&ts, 0); |
509 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
510 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
511 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
512 | #else |
458 | struct timeval tv; |
513 | struct timeval tv; |
459 | |
514 | |
460 | tv.tv_sec = (time_t)delay; |
515 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
702 | } |
757 | } |
703 | } |
758 | } |
704 | |
759 | |
705 | /*****************************************************************************/ |
760 | /*****************************************************************************/ |
706 | |
761 | |
|
|
762 | /* towards the root */ |
707 | void inline_speed |
763 | void inline_speed |
708 | upheap (WT *heap, int k) |
764 | upheap (WT *heap, int k) |
709 | { |
765 | { |
710 | WT w = heap [k]; |
766 | WT w = heap [k]; |
711 | |
767 | |
712 | while (k) |
768 | for (;;) |
713 | { |
769 | { |
714 | int p = (k - 1) >> 1; |
770 | int p = k >> 1; |
715 | |
771 | |
|
|
772 | /* maybe we could use a dummy element at heap [0]? */ |
716 | if (heap [p]->at <= w->at) |
773 | if (!p || heap [p]->at <= w->at) |
717 | break; |
774 | break; |
718 | |
775 | |
719 | heap [k] = heap [p]; |
776 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
777 | ((W)heap [k])->active = k; |
721 | k = p; |
778 | k = p; |
722 | } |
779 | } |
723 | |
780 | |
724 | heap [k] = w; |
781 | heap [k] = w; |
725 | ((W)heap [k])->active = k + 1; |
782 | ((W)heap [k])->active = k; |
726 | } |
783 | } |
727 | |
784 | |
|
|
785 | /* away from the root */ |
728 | void inline_speed |
786 | void inline_speed |
729 | downheap (WT *heap, int N, int k) |
787 | downheap (WT *heap, int N, int k) |
730 | { |
788 | { |
731 | WT w = heap [k]; |
789 | WT w = heap [k]; |
732 | |
790 | |
733 | for (;;) |
791 | for (;;) |
734 | { |
792 | { |
735 | int c = (k << 1) + 1; |
793 | int c = k << 1; |
736 | |
794 | |
737 | if (c >= N) |
795 | if (c > N) |
738 | break; |
796 | break; |
739 | |
797 | |
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
798 | c += c < N && heap [c]->at > heap [c + 1]->at |
741 | ? 1 : 0; |
799 | ? 1 : 0; |
742 | |
800 | |
743 | if (w->at <= heap [c]->at) |
801 | if (w->at <= heap [c]->at) |
744 | break; |
802 | break; |
745 | |
803 | |
746 | heap [k] = heap [c]; |
804 | heap [k] = heap [c]; |
747 | ((W)heap [k])->active = k + 1; |
805 | ((W)heap [k])->active = k; |
748 | |
806 | |
749 | k = c; |
807 | k = c; |
750 | } |
808 | } |
751 | |
809 | |
752 | heap [k] = w; |
810 | heap [k] = w; |
753 | ((W)heap [k])->active = k + 1; |
811 | ((W)heap [k])->active = k; |
754 | } |
812 | } |
755 | |
813 | |
756 | void inline_size |
814 | void inline_size |
757 | adjustheap (WT *heap, int N, int k) |
815 | adjustheap (WT *heap, int N, int k) |
758 | { |
816 | { |
… | |
… | |
763 | /*****************************************************************************/ |
821 | /*****************************************************************************/ |
764 | |
822 | |
765 | typedef struct |
823 | typedef struct |
766 | { |
824 | { |
767 | WL head; |
825 | WL head; |
768 | sig_atomic_t volatile gotsig; |
826 | EV_ATOMIC_T gotsig; |
769 | } ANSIG; |
827 | } ANSIG; |
770 | |
828 | |
771 | static ANSIG *signals; |
829 | static ANSIG *signals; |
772 | static int signalmax; |
830 | static int signalmax; |
773 | |
831 | |
774 | static int sigpipe [2]; |
832 | static EV_ATOMIC_T gotsig; |
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
833 | |
778 | void inline_size |
834 | void inline_size |
779 | signals_init (ANSIG *base, int count) |
835 | signals_init (ANSIG *base, int count) |
780 | { |
836 | { |
781 | while (count--) |
837 | while (count--) |
… | |
… | |
785 | |
841 | |
786 | ++base; |
842 | ++base; |
787 | } |
843 | } |
788 | } |
844 | } |
789 | |
845 | |
790 | static void |
846 | /*****************************************************************************/ |
791 | sighandler (int signum) |
|
|
792 | { |
|
|
793 | #if _WIN32 |
|
|
794 | signal (signum, sighandler); |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | signals [signum - 1].gotsig = 1; |
|
|
798 | |
|
|
799 | if (!gotsig) |
|
|
800 | { |
|
|
801 | int old_errno = errno; |
|
|
802 | gotsig = 1; |
|
|
803 | write (sigpipe [1], &signum, 1); |
|
|
804 | errno = old_errno; |
|
|
805 | } |
|
|
806 | } |
|
|
807 | |
|
|
808 | void noinline |
|
|
809 | ev_feed_signal_event (EV_P_ int signum) |
|
|
810 | { |
|
|
811 | WL w; |
|
|
812 | |
|
|
813 | #if EV_MULTIPLICITY |
|
|
814 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | --signum; |
|
|
818 | |
|
|
819 | if (signum < 0 || signum >= signalmax) |
|
|
820 | return; |
|
|
821 | |
|
|
822 | signals [signum].gotsig = 0; |
|
|
823 | |
|
|
824 | for (w = signals [signum].head; w; w = w->next) |
|
|
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
830 | { |
|
|
831 | int signum; |
|
|
832 | |
|
|
833 | read (sigpipe [0], &revents, 1); |
|
|
834 | gotsig = 0; |
|
|
835 | |
|
|
836 | for (signum = signalmax; signum--; ) |
|
|
837 | if (signals [signum].gotsig) |
|
|
838 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
839 | } |
|
|
840 | |
847 | |
841 | void inline_speed |
848 | void inline_speed |
842 | fd_intern (int fd) |
849 | fd_intern (int fd) |
843 | { |
850 | { |
844 | #ifdef _WIN32 |
851 | #ifdef _WIN32 |
… | |
… | |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
856 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
857 | #endif |
851 | } |
858 | } |
852 | |
859 | |
853 | static void noinline |
860 | static void noinline |
854 | siginit (EV_P) |
861 | evpipe_init (EV_P) |
855 | { |
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 | |
856 | fd_intern (sigpipe [0]); |
878 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
879 | fd_intern (evpipe [1]); |
|
|
880 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
881 | } |
858 | |
882 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
883 | ev_io_start (EV_A_ &pipeev); |
861 | 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 | |
|
|
888 | void inline_size |
|
|
889 | evpipe_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 | |
|
|
911 | static void |
|
|
912 | pipecb (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 |
862 | } |
951 | } |
863 | |
952 | |
864 | /*****************************************************************************/ |
953 | /*****************************************************************************/ |
865 | |
954 | |
|
|
955 | static void |
|
|
956 | ev_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 | |
|
|
970 | void noinline |
|
|
971 | ev_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 | |
866 | static WL childs [EV_PID_HASHSIZE]; |
992 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
993 | |
868 | #ifndef _WIN32 |
994 | #ifndef _WIN32 |
869 | |
995 | |
870 | static ev_signal childev; |
996 | static ev_signal childev; |
871 | |
997 | |
|
|
998 | #ifndef WIFCONTINUED |
|
|
999 | # define WIFCONTINUED(status) 0 |
|
|
1000 | #endif |
|
|
1001 | |
872 | void inline_speed |
1002 | void inline_speed |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1003 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1004 | { |
875 | ev_child *w; |
1005 | ev_child *w; |
|
|
1006 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1007 | |
877 | 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 | { |
878 | if (w->pid == pid || !w->pid) |
1010 | if ((w->pid == pid || !w->pid) |
|
|
1011 | && (!traced || (w->flags & 1))) |
879 | { |
1012 | { |
880 | 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 */ |
881 | w->rpid = pid; |
1014 | w->rpid = pid; |
882 | w->rstatus = status; |
1015 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1016 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1017 | } |
|
|
1018 | } |
885 | } |
1019 | } |
886 | |
1020 | |
887 | #ifndef WCONTINUED |
1021 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1022 | # define WCONTINUED 0 |
889 | #endif |
1023 | #endif |
… | |
… | |
898 | if (!WCONTINUED |
1032 | if (!WCONTINUED |
899 | || errno != EINVAL |
1033 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1034 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1035 | return; |
902 | |
1036 | |
903 | /* 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 */ |
904 | /* 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 */ |
905 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1039 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1040 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1041 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1042 | if (EV_PID_HASHSIZE > 1) |
909 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1043 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1044 | } |
911 | |
1045 | |
912 | #endif |
1046 | #endif |
913 | |
1047 | |
914 | /*****************************************************************************/ |
1048 | /*****************************************************************************/ |
… | |
… | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1166 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1167 | have_monotonic = 1; |
1034 | } |
1168 | } |
1035 | #endif |
1169 | #endif |
1036 | |
1170 | |
1037 | ev_rt_now = ev_time (); |
1171 | ev_rt_now = ev_time (); |
1038 | mn_now = get_clock (); |
1172 | mn_now = get_clock (); |
1039 | now_floor = mn_now; |
1173 | now_floor = mn_now; |
1040 | rtmn_diff = ev_rt_now - mn_now; |
1174 | rtmn_diff = ev_rt_now - mn_now; |
1041 | |
1175 | |
1042 | io_blocktime = 0.; |
1176 | io_blocktime = 0.; |
1043 | 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 |
1044 | |
1184 | |
1045 | /* pid check not overridable via env */ |
1185 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1186 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1187 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1188 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1191 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1192 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1193 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1194 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1195 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1196 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1197 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1198 | |
1065 | #if EV_USE_PORT |
1199 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1200 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1201 | #endif |
1068 | #if EV_USE_KQUEUE |
1202 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1210 | #endif |
1077 | #if EV_USE_SELECT |
1211 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1212 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1213 | #endif |
1080 | |
1214 | |
1081 | ev_init (&sigev, sigcb); |
1215 | ev_init (&pipeev, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1216 | ev_set_priority (&pipeev, EV_MAXPRI); |
1083 | } |
1217 | } |
1084 | } |
1218 | } |
1085 | |
1219 | |
1086 | static void noinline |
1220 | static void noinline |
1087 | loop_destroy (EV_P) |
1221 | loop_destroy (EV_P) |
1088 | { |
1222 | { |
1089 | 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 | } |
1090 | |
1241 | |
1091 | #if EV_USE_INOTIFY |
1242 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1243 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1244 | close (fs_fd); |
1094 | #endif |
1245 | #endif |
… | |
… | |
1131 | #if EV_FORK_ENABLE |
1282 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1283 | array_free (fork, EMPTY); |
1133 | #endif |
1284 | #endif |
1134 | array_free (prepare, EMPTY); |
1285 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1286 | array_free (check, EMPTY); |
|
|
1287 | #if EV_ASYNC_ENABLE |
|
|
1288 | array_free (async, EMPTY); |
|
|
1289 | #endif |
1136 | |
1290 | |
1137 | backend = 0; |
1291 | backend = 0; |
1138 | } |
1292 | } |
1139 | |
1293 | |
|
|
1294 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1295 | void inline_size infy_fork (EV_P); |
|
|
1296 | #endif |
1141 | |
1297 | |
1142 | void inline_size |
1298 | void inline_size |
1143 | loop_fork (EV_P) |
1299 | loop_fork (EV_P) |
1144 | { |
1300 | { |
1145 | #if EV_USE_PORT |
1301 | #if EV_USE_PORT |
… | |
… | |
1153 | #endif |
1309 | #endif |
1154 | #if EV_USE_INOTIFY |
1310 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1311 | infy_fork (EV_A); |
1156 | #endif |
1312 | #endif |
1157 | |
1313 | |
1158 | if (ev_is_active (&sigev)) |
1314 | if (ev_is_active (&pipeev)) |
1159 | { |
1315 | { |
1160 | /* 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 |
1161 | |
1322 | |
1162 | ev_ref (EV_A); |
1323 | ev_ref (EV_A); |
1163 | 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 | { |
1164 | close (sigpipe [0]); |
1333 | close (evpipe [0]); |
1165 | close (sigpipe [1]); |
1334 | close (evpipe [1]); |
|
|
1335 | } |
1166 | |
1336 | |
1167 | while (pipe (sigpipe)) |
|
|
1168 | syserr ("(libev) error creating pipe"); |
|
|
1169 | |
|
|
1170 | 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); |
1171 | } |
1340 | } |
1172 | |
1341 | |
1173 | postfork = 0; |
1342 | postfork = 0; |
1174 | } |
1343 | } |
1175 | |
1344 | |
… | |
… | |
1197 | } |
1366 | } |
1198 | |
1367 | |
1199 | void |
1368 | void |
1200 | ev_loop_fork (EV_P) |
1369 | ev_loop_fork (EV_P) |
1201 | { |
1370 | { |
1202 | postfork = 1; |
1371 | postfork = 1; /* must be in line with ev_default_fork */ |
1203 | } |
1372 | } |
1204 | |
1373 | |
1205 | #endif |
1374 | #endif |
1206 | |
1375 | |
1207 | #if EV_MULTIPLICITY |
1376 | #if EV_MULTIPLICITY |
… | |
… | |
1210 | #else |
1379 | #else |
1211 | int |
1380 | int |
1212 | ev_default_loop (unsigned int flags) |
1381 | ev_default_loop (unsigned int flags) |
1213 | #endif |
1382 | #endif |
1214 | { |
1383 | { |
1215 | if (sigpipe [0] == sigpipe [1]) |
|
|
1216 | if (pipe (sigpipe)) |
|
|
1217 | return 0; |
|
|
1218 | |
|
|
1219 | if (!ev_default_loop_ptr) |
1384 | if (!ev_default_loop_ptr) |
1220 | { |
1385 | { |
1221 | #if EV_MULTIPLICITY |
1386 | #if EV_MULTIPLICITY |
1222 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1387 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1223 | #else |
1388 | #else |
… | |
… | |
1226 | |
1391 | |
1227 | loop_init (EV_A_ flags); |
1392 | loop_init (EV_A_ flags); |
1228 | |
1393 | |
1229 | if (ev_backend (EV_A)) |
1394 | if (ev_backend (EV_A)) |
1230 | { |
1395 | { |
1231 | siginit (EV_A); |
|
|
1232 | |
|
|
1233 | #ifndef _WIN32 |
1396 | #ifndef _WIN32 |
1234 | ev_signal_init (&childev, childcb, SIGCHLD); |
1397 | ev_signal_init (&childev, childcb, SIGCHLD); |
1235 | ev_set_priority (&childev, EV_MAXPRI); |
1398 | ev_set_priority (&childev, EV_MAXPRI); |
1236 | ev_signal_start (EV_A_ &childev); |
1399 | ev_signal_start (EV_A_ &childev); |
1237 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1400 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1254 | #ifndef _WIN32 |
1417 | #ifndef _WIN32 |
1255 | ev_ref (EV_A); /* child watcher */ |
1418 | ev_ref (EV_A); /* child watcher */ |
1256 | ev_signal_stop (EV_A_ &childev); |
1419 | ev_signal_stop (EV_A_ &childev); |
1257 | #endif |
1420 | #endif |
1258 | |
1421 | |
1259 | ev_ref (EV_A); /* signal watcher */ |
|
|
1260 | ev_io_stop (EV_A_ &sigev); |
|
|
1261 | |
|
|
1262 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1263 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1264 | |
|
|
1265 | loop_destroy (EV_A); |
1422 | loop_destroy (EV_A); |
1266 | } |
1423 | } |
1267 | |
1424 | |
1268 | void |
1425 | void |
1269 | ev_default_fork (void) |
1426 | ev_default_fork (void) |
… | |
… | |
1271 | #if EV_MULTIPLICITY |
1428 | #if EV_MULTIPLICITY |
1272 | struct ev_loop *loop = ev_default_loop_ptr; |
1429 | struct ev_loop *loop = ev_default_loop_ptr; |
1273 | #endif |
1430 | #endif |
1274 | |
1431 | |
1275 | if (backend) |
1432 | if (backend) |
1276 | postfork = 1; |
1433 | postfork = 1; /* must be in line with ev_loop_fork */ |
1277 | } |
1434 | } |
1278 | |
1435 | |
1279 | /*****************************************************************************/ |
1436 | /*****************************************************************************/ |
1280 | |
1437 | |
1281 | void |
1438 | void |
… | |
… | |
1305 | } |
1462 | } |
1306 | |
1463 | |
1307 | void inline_size |
1464 | void inline_size |
1308 | timers_reify (EV_P) |
1465 | timers_reify (EV_P) |
1309 | { |
1466 | { |
1310 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1467 | while (timercnt && ev_at (timers [1]) <= mn_now) |
1311 | { |
1468 | { |
1312 | ev_timer *w = (ev_timer *)timers [0]; |
1469 | ev_timer *w = (ev_timer *)timers [1]; |
1313 | |
1470 | |
1314 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1471 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1315 | |
1472 | |
1316 | /* first reschedule or stop timer */ |
1473 | /* first reschedule or stop timer */ |
1317 | if (w->repeat) |
1474 | if (w->repeat) |
1318 | { |
1475 | { |
1319 | 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.)); |
1320 | |
1477 | |
1321 | ((WT)w)->at += w->repeat; |
1478 | ev_at (w) += w->repeat; |
1322 | if (((WT)w)->at < mn_now) |
1479 | if (ev_at (w) < mn_now) |
1323 | ((WT)w)->at = mn_now; |
1480 | ev_at (w) = mn_now; |
1324 | |
1481 | |
1325 | downheap (timers, timercnt, 0); |
1482 | downheap (timers, timercnt, 1); |
1326 | } |
1483 | } |
1327 | else |
1484 | else |
1328 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1485 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1329 | |
1486 | |
1330 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1487 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1333 | |
1490 | |
1334 | #if EV_PERIODIC_ENABLE |
1491 | #if EV_PERIODIC_ENABLE |
1335 | void inline_size |
1492 | void inline_size |
1336 | periodics_reify (EV_P) |
1493 | periodics_reify (EV_P) |
1337 | { |
1494 | { |
1338 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1495 | while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now) |
1339 | { |
1496 | { |
1340 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1497 | ev_periodic *w = (ev_periodic *)periodics [1]; |
1341 | |
1498 | |
1342 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1499 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1343 | |
1500 | |
1344 | /* first reschedule or stop timer */ |
1501 | /* first reschedule or stop timer */ |
1345 | if (w->reschedule_cb) |
1502 | if (w->reschedule_cb) |
1346 | { |
1503 | { |
1347 | ((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); |
1348 | 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)); |
1349 | downheap (periodics, periodiccnt, 0); |
1506 | downheap (periodics, periodiccnt, 1); |
1350 | } |
1507 | } |
1351 | else if (w->interval) |
1508 | else if (w->interval) |
1352 | { |
1509 | { |
1353 | ((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; |
1354 | 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; |
1355 | 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)); |
1356 | downheap (periodics, periodiccnt, 0); |
1513 | downheap (periodics, periodiccnt, 1); |
1357 | } |
1514 | } |
1358 | else |
1515 | else |
1359 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1516 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1360 | |
1517 | |
1361 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1518 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1371 | for (i = 0; i < periodiccnt; ++i) |
1528 | for (i = 0; i < periodiccnt; ++i) |
1372 | { |
1529 | { |
1373 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1530 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1374 | |
1531 | |
1375 | if (w->reschedule_cb) |
1532 | if (w->reschedule_cb) |
1376 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1533 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1377 | else if (w->interval) |
1534 | else if (w->interval) |
1378 | ((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; |
1379 | } |
1536 | } |
1380 | |
1537 | |
1381 | /* now rebuild the heap */ |
1538 | /* now rebuild the heap */ |
1382 | for (i = periodiccnt >> 1; i--; ) |
1539 | for (i = periodiccnt >> 1; i--; ) |
1383 | downheap (periodics, periodiccnt, i); |
1540 | downheap (periodics, periodiccnt, i); |
… | |
… | |
1465 | { |
1622 | { |
1466 | #if EV_PERIODIC_ENABLE |
1623 | #if EV_PERIODIC_ENABLE |
1467 | periodics_reschedule (EV_A); |
1624 | periodics_reschedule (EV_A); |
1468 | #endif |
1625 | #endif |
1469 | /* 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 */ |
1470 | for (i = 0; i < timercnt; ++i) |
1627 | for (i = 1; i <= timercnt; ++i) |
1471 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1628 | ev_at (timers [i]) += ev_rt_now - mn_now; |
1472 | } |
1629 | } |
1473 | |
1630 | |
1474 | mn_now = ev_rt_now; |
1631 | mn_now = ev_rt_now; |
1475 | } |
1632 | } |
1476 | } |
1633 | } |
… | |
… | |
1490 | static int loop_done; |
1647 | static int loop_done; |
1491 | |
1648 | |
1492 | void |
1649 | void |
1493 | ev_loop (EV_P_ int flags) |
1650 | ev_loop (EV_P_ int flags) |
1494 | { |
1651 | { |
1495 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1652 | loop_done = EVUNLOOP_CANCEL; |
1496 | ? EVUNLOOP_ONE |
|
|
1497 | : EVUNLOOP_CANCEL; |
|
|
1498 | |
1653 | |
1499 | 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 */ |
1500 | |
1655 | |
1501 | do |
1656 | do |
1502 | { |
1657 | { |
… | |
… | |
1548 | |
1703 | |
1549 | waittime = MAX_BLOCKTIME; |
1704 | waittime = MAX_BLOCKTIME; |
1550 | |
1705 | |
1551 | if (timercnt) |
1706 | if (timercnt) |
1552 | { |
1707 | { |
1553 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1708 | ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; |
1554 | if (waittime > to) waittime = to; |
1709 | if (waittime > to) waittime = to; |
1555 | } |
1710 | } |
1556 | |
1711 | |
1557 | #if EV_PERIODIC_ENABLE |
1712 | #if EV_PERIODIC_ENABLE |
1558 | if (periodiccnt) |
1713 | if (periodiccnt) |
1559 | { |
1714 | { |
1560 | 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; |
1561 | if (waittime > to) waittime = to; |
1716 | if (waittime > to) waittime = to; |
1562 | } |
1717 | } |
1563 | #endif |
1718 | #endif |
1564 | |
1719 | |
1565 | if (expect_false (waittime < timeout_blocktime)) |
1720 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1598 | /* queue check watchers, to be executed first */ |
1753 | /* queue check watchers, to be executed first */ |
1599 | if (expect_false (checkcnt)) |
1754 | if (expect_false (checkcnt)) |
1600 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1755 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1601 | |
1756 | |
1602 | call_pending (EV_A); |
1757 | call_pending (EV_A); |
1603 | |
|
|
1604 | } |
1758 | } |
1605 | while (expect_true (activecnt && !loop_done)); |
1759 | while (expect_true ( |
|
|
1760 | activecnt |
|
|
1761 | && !loop_done |
|
|
1762 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1763 | )); |
1606 | |
1764 | |
1607 | if (loop_done == EVUNLOOP_ONE) |
1765 | if (loop_done == EVUNLOOP_ONE) |
1608 | loop_done = EVUNLOOP_CANCEL; |
1766 | loop_done = EVUNLOOP_CANCEL; |
1609 | } |
1767 | } |
1610 | |
1768 | |
… | |
… | |
1728 | ev_timer_start (EV_P_ ev_timer *w) |
1886 | ev_timer_start (EV_P_ ev_timer *w) |
1729 | { |
1887 | { |
1730 | if (expect_false (ev_is_active (w))) |
1888 | if (expect_false (ev_is_active (w))) |
1731 | return; |
1889 | return; |
1732 | |
1890 | |
1733 | ((WT)w)->at += mn_now; |
1891 | ev_at (w) += mn_now; |
1734 | |
1892 | |
1735 | 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.)); |
1736 | |
1894 | |
1737 | ev_start (EV_A_ (W)w, ++timercnt); |
1895 | ev_start (EV_A_ (W)w, ++timercnt); |
1738 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1896 | array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); |
1739 | timers [timercnt - 1] = (WT)w; |
1897 | timers [timercnt] = (WT)w; |
1740 | upheap (timers, timercnt - 1); |
1898 | upheap (timers, timercnt); |
1741 | |
1899 | |
1742 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1900 | /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/ |
1743 | } |
1901 | } |
1744 | |
1902 | |
1745 | void noinline |
1903 | void noinline |
1746 | ev_timer_stop (EV_P_ ev_timer *w) |
1904 | ev_timer_stop (EV_P_ ev_timer *w) |
1747 | { |
1905 | { |
1748 | clear_pending (EV_A_ (W)w); |
1906 | clear_pending (EV_A_ (W)w); |
1749 | if (expect_false (!ev_is_active (w))) |
1907 | if (expect_false (!ev_is_active (w))) |
1750 | return; |
1908 | return; |
1751 | |
1909 | |
1752 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1910 | assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w)); |
1753 | |
1911 | |
1754 | { |
1912 | { |
1755 | int active = ((W)w)->active; |
1913 | int active = ((W)w)->active; |
1756 | |
1914 | |
1757 | if (expect_true (--active < --timercnt)) |
1915 | if (expect_true (active < timercnt)) |
1758 | { |
1916 | { |
1759 | timers [active] = timers [timercnt]; |
1917 | timers [active] = timers [timercnt]; |
1760 | adjustheap (timers, timercnt, active); |
1918 | adjustheap (timers, timercnt, active); |
1761 | } |
1919 | } |
|
|
1920 | |
|
|
1921 | --timercnt; |
1762 | } |
1922 | } |
1763 | |
1923 | |
1764 | ((WT)w)->at -= mn_now; |
1924 | ev_at (w) -= mn_now; |
1765 | |
1925 | |
1766 | ev_stop (EV_A_ (W)w); |
1926 | ev_stop (EV_A_ (W)w); |
1767 | } |
1927 | } |
1768 | |
1928 | |
1769 | void noinline |
1929 | void noinline |
… | |
… | |
1771 | { |
1931 | { |
1772 | if (ev_is_active (w)) |
1932 | if (ev_is_active (w)) |
1773 | { |
1933 | { |
1774 | if (w->repeat) |
1934 | if (w->repeat) |
1775 | { |
1935 | { |
1776 | ((WT)w)->at = mn_now + w->repeat; |
1936 | ev_at (w) = mn_now + w->repeat; |
1777 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1937 | adjustheap (timers, timercnt, ((W)w)->active); |
1778 | } |
1938 | } |
1779 | else |
1939 | else |
1780 | ev_timer_stop (EV_A_ w); |
1940 | ev_timer_stop (EV_A_ w); |
1781 | } |
1941 | } |
1782 | else if (w->repeat) |
1942 | else if (w->repeat) |
1783 | { |
1943 | { |
1784 | w->at = w->repeat; |
1944 | ev_at (w) = w->repeat; |
1785 | ev_timer_start (EV_A_ w); |
1945 | ev_timer_start (EV_A_ w); |
1786 | } |
1946 | } |
1787 | } |
1947 | } |
1788 | |
1948 | |
1789 | #if EV_PERIODIC_ENABLE |
1949 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1792 | { |
1952 | { |
1793 | if (expect_false (ev_is_active (w))) |
1953 | if (expect_false (ev_is_active (w))) |
1794 | return; |
1954 | return; |
1795 | |
1955 | |
1796 | if (w->reschedule_cb) |
1956 | if (w->reschedule_cb) |
1797 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1957 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1798 | else if (w->interval) |
1958 | else if (w->interval) |
1799 | { |
1959 | { |
1800 | 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.)); |
1801 | /* 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 */ |
1802 | ((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; |
1803 | } |
1963 | } |
1804 | else |
1964 | else |
1805 | ((WT)w)->at = w->offset; |
1965 | ev_at (w) = w->offset; |
1806 | |
1966 | |
1807 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1967 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1808 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1968 | array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); |
1809 | periodics [periodiccnt - 1] = (WT)w; |
1969 | periodics [periodiccnt] = (WT)w; |
1810 | upheap (periodics, periodiccnt - 1); |
1970 | upheap (periodics, periodiccnt); |
1811 | |
1971 | |
1812 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1972 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1813 | } |
1973 | } |
1814 | |
1974 | |
1815 | void noinline |
1975 | void noinline |
… | |
… | |
1817 | { |
1977 | { |
1818 | clear_pending (EV_A_ (W)w); |
1978 | clear_pending (EV_A_ (W)w); |
1819 | if (expect_false (!ev_is_active (w))) |
1979 | if (expect_false (!ev_is_active (w))) |
1820 | return; |
1980 | return; |
1821 | |
1981 | |
1822 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1982 | assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w)); |
1823 | |
1983 | |
1824 | { |
1984 | { |
1825 | int active = ((W)w)->active; |
1985 | int active = ((W)w)->active; |
1826 | |
1986 | |
1827 | if (expect_true (--active < --periodiccnt)) |
1987 | if (expect_true (active < periodiccnt)) |
1828 | { |
1988 | { |
1829 | periodics [active] = periodics [periodiccnt]; |
1989 | periodics [active] = periodics [periodiccnt]; |
1830 | adjustheap (periodics, periodiccnt, active); |
1990 | adjustheap (periodics, periodiccnt, active); |
1831 | } |
1991 | } |
|
|
1992 | |
|
|
1993 | --periodiccnt; |
1832 | } |
1994 | } |
1833 | |
1995 | |
1834 | ev_stop (EV_A_ (W)w); |
1996 | ev_stop (EV_A_ (W)w); |
1835 | } |
1997 | } |
1836 | |
1998 | |
… | |
… | |
1855 | #endif |
2017 | #endif |
1856 | if (expect_false (ev_is_active (w))) |
2018 | if (expect_false (ev_is_active (w))) |
1857 | return; |
2019 | return; |
1858 | |
2020 | |
1859 | 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); |
1860 | |
2024 | |
1861 | { |
2025 | { |
1862 | #ifndef _WIN32 |
2026 | #ifndef _WIN32 |
1863 | sigset_t full, prev; |
2027 | sigset_t full, prev; |
1864 | sigfillset (&full); |
2028 | sigfillset (&full); |
… | |
… | |
1876 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2040 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1877 | |
2041 | |
1878 | if (!((WL)w)->next) |
2042 | if (!((WL)w)->next) |
1879 | { |
2043 | { |
1880 | #if _WIN32 |
2044 | #if _WIN32 |
1881 | signal (w->signum, sighandler); |
2045 | signal (w->signum, ev_sighandler); |
1882 | #else |
2046 | #else |
1883 | struct sigaction sa; |
2047 | struct sigaction sa; |
1884 | sa.sa_handler = sighandler; |
2048 | sa.sa_handler = ev_sighandler; |
1885 | sigfillset (&sa.sa_mask); |
2049 | sigfillset (&sa.sa_mask); |
1886 | 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 */ |
1887 | sigaction (w->signum, &sa, 0); |
2051 | sigaction (w->signum, &sa, 0); |
1888 | #endif |
2052 | #endif |
1889 | } |
2053 | } |
… | |
… | |
2378 | |
2542 | |
2379 | ev_stop (EV_A_ (W)w); |
2543 | ev_stop (EV_A_ (W)w); |
2380 | } |
2544 | } |
2381 | #endif |
2545 | #endif |
2382 | |
2546 | |
|
|
2547 | #if EV_ASYNC_ENABLE |
|
|
2548 | void |
|
|
2549 | ev_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 | |
|
|
2561 | void |
|
|
2562 | ev_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 | |
|
|
2577 | void |
|
|
2578 | ev_async_send (EV_P_ ev_async *w) |
|
|
2579 | { |
|
|
2580 | w->sent = 1; |
|
|
2581 | evpipe_write (EV_A_ &gotasync); |
|
|
2582 | } |
|
|
2583 | #endif |
|
|
2584 | |
2383 | /*****************************************************************************/ |
2585 | /*****************************************************************************/ |
2384 | |
2586 | |
2385 | struct ev_once |
2587 | struct ev_once |
2386 | { |
2588 | { |
2387 | ev_io io; |
2589 | ev_io io; |