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); |
… | |
… | |
464 | #endif |
519 | #endif |
465 | } |
520 | } |
466 | } |
521 | } |
467 | |
522 | |
468 | /*****************************************************************************/ |
523 | /*****************************************************************************/ |
|
|
524 | |
|
|
525 | #define MALLOC_ROUND 4096 // prefer to allocate in chunks of this size, must be 2**n and >> 4 longs |
469 | |
526 | |
470 | int inline_size |
527 | int inline_size |
471 | array_nextsize (int elem, int cur, int cnt) |
528 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
529 | { |
473 | int ncur = cur + 1; |
530 | int ncur = cur + 1; |
474 | |
531 | |
475 | do |
532 | do |
476 | ncur <<= 1; |
533 | ncur <<= 1; |
477 | while (cnt > ncur); |
534 | while (cnt > ncur); |
478 | |
535 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
536 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
537 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
538 | { |
482 | ncur *= elem; |
539 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
540 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
541 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
542 | ncur /= elem; |
486 | } |
543 | } |
487 | |
544 | |
488 | return ncur; |
545 | return ncur; |
… | |
… | |
702 | } |
759 | } |
703 | } |
760 | } |
704 | |
761 | |
705 | /*****************************************************************************/ |
762 | /*****************************************************************************/ |
706 | |
763 | |
|
|
764 | /* towards the root */ |
707 | void inline_speed |
765 | void inline_speed |
708 | upheap (WT *heap, int k) |
766 | upheap (WT *heap, int k) |
709 | { |
767 | { |
710 | WT w = heap [k]; |
768 | WT w = heap [k]; |
711 | |
769 | |
712 | while (k) |
770 | for (;;) |
713 | { |
771 | { |
714 | int p = (k - 1) >> 1; |
772 | int p = k >> 1; |
715 | |
773 | |
|
|
774 | /* maybe we could use a dummy element at heap [0]? */ |
716 | if (heap [p]->at <= w->at) |
775 | if (!p || heap [p]->at <= w->at) |
717 | break; |
776 | break; |
718 | |
777 | |
719 | heap [k] = heap [p]; |
778 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
779 | ev_active (heap [k]) = k; |
721 | k = p; |
780 | k = p; |
722 | } |
781 | } |
723 | |
782 | |
724 | heap [k] = w; |
783 | heap [k] = w; |
725 | ((W)heap [k])->active = k + 1; |
784 | ev_active (heap [k]) = k; |
726 | } |
785 | } |
727 | |
786 | |
|
|
787 | /* away from the root */ |
728 | void inline_speed |
788 | void inline_speed |
729 | downheap (WT *heap, int N, int k) |
789 | downheap (WT *heap, int N, int k) |
730 | { |
790 | { |
731 | WT w = heap [k]; |
791 | WT w = heap [k]; |
732 | |
792 | |
733 | for (;;) |
793 | for (;;) |
734 | { |
794 | { |
735 | int c = (k << 1) + 1; |
795 | int c = k << 1; |
736 | |
796 | |
737 | if (c >= N) |
797 | if (c > N) |
738 | break; |
798 | break; |
739 | |
799 | |
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
800 | c += c < N && heap [c]->at > heap [c + 1]->at |
741 | ? 1 : 0; |
801 | ? 1 : 0; |
742 | |
802 | |
743 | if (w->at <= heap [c]->at) |
803 | if (w->at <= heap [c]->at) |
744 | break; |
804 | break; |
745 | |
805 | |
746 | heap [k] = heap [c]; |
806 | heap [k] = heap [c]; |
747 | ((W)heap [k])->active = k + 1; |
807 | ev_active (heap [k]) = k; |
748 | |
808 | |
749 | k = c; |
809 | k = c; |
750 | } |
810 | } |
751 | |
811 | |
752 | heap [k] = w; |
812 | heap [k] = w; |
753 | ((W)heap [k])->active = k + 1; |
813 | ev_active (heap [k]) = k; |
754 | } |
814 | } |
755 | |
815 | |
756 | void inline_size |
816 | void inline_size |
757 | adjustheap (WT *heap, int N, int k) |
817 | adjustheap (WT *heap, int N, int k) |
758 | { |
818 | { |
… | |
… | |
763 | /*****************************************************************************/ |
823 | /*****************************************************************************/ |
764 | |
824 | |
765 | typedef struct |
825 | typedef struct |
766 | { |
826 | { |
767 | WL head; |
827 | WL head; |
768 | sig_atomic_t volatile gotsig; |
828 | EV_ATOMIC_T gotsig; |
769 | } ANSIG; |
829 | } ANSIG; |
770 | |
830 | |
771 | static ANSIG *signals; |
831 | static ANSIG *signals; |
772 | static int signalmax; |
832 | static int signalmax; |
773 | |
833 | |
774 | static int sigpipe [2]; |
834 | static EV_ATOMIC_T gotsig; |
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
835 | |
778 | void inline_size |
836 | void inline_size |
779 | signals_init (ANSIG *base, int count) |
837 | signals_init (ANSIG *base, int count) |
780 | { |
838 | { |
781 | while (count--) |
839 | while (count--) |
… | |
… | |
785 | |
843 | |
786 | ++base; |
844 | ++base; |
787 | } |
845 | } |
788 | } |
846 | } |
789 | |
847 | |
790 | static void |
848 | /*****************************************************************************/ |
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 | |
849 | |
841 | void inline_speed |
850 | void inline_speed |
842 | fd_intern (int fd) |
851 | fd_intern (int fd) |
843 | { |
852 | { |
844 | #ifdef _WIN32 |
853 | #ifdef _WIN32 |
… | |
… | |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
858 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
859 | #endif |
851 | } |
860 | } |
852 | |
861 | |
853 | static void noinline |
862 | static void noinline |
854 | siginit (EV_P) |
863 | evpipe_init (EV_P) |
855 | { |
864 | { |
|
|
865 | if (!ev_is_active (&pipeev)) |
|
|
866 | { |
|
|
867 | #if EV_USE_EVENTFD |
|
|
868 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
869 | { |
|
|
870 | evpipe [0] = -1; |
|
|
871 | fd_intern (evfd); |
|
|
872 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
873 | } |
|
|
874 | else |
|
|
875 | #endif |
|
|
876 | { |
|
|
877 | while (pipe (evpipe)) |
|
|
878 | syserr ("(libev) error creating signal/async pipe"); |
|
|
879 | |
856 | fd_intern (sigpipe [0]); |
880 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
881 | fd_intern (evpipe [1]); |
|
|
882 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
883 | } |
858 | |
884 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
885 | ev_io_start (EV_A_ &pipeev); |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
886 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
887 | } |
|
|
888 | } |
|
|
889 | |
|
|
890 | void inline_size |
|
|
891 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
892 | { |
|
|
893 | if (!*flag) |
|
|
894 | { |
|
|
895 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
896 | |
|
|
897 | *flag = 1; |
|
|
898 | |
|
|
899 | #if EV_USE_EVENTFD |
|
|
900 | if (evfd >= 0) |
|
|
901 | { |
|
|
902 | uint64_t counter = 1; |
|
|
903 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
904 | } |
|
|
905 | else |
|
|
906 | #endif |
|
|
907 | write (evpipe [1], &old_errno, 1); |
|
|
908 | |
|
|
909 | errno = old_errno; |
|
|
910 | } |
|
|
911 | } |
|
|
912 | |
|
|
913 | static void |
|
|
914 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
915 | { |
|
|
916 | #if EV_USE_EVENTFD |
|
|
917 | if (evfd >= 0) |
|
|
918 | { |
|
|
919 | uint64_t counter; |
|
|
920 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
921 | } |
|
|
922 | else |
|
|
923 | #endif |
|
|
924 | { |
|
|
925 | char dummy; |
|
|
926 | read (evpipe [0], &dummy, 1); |
|
|
927 | } |
|
|
928 | |
|
|
929 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
930 | { |
|
|
931 | int signum; |
|
|
932 | gotsig = 0; |
|
|
933 | |
|
|
934 | for (signum = signalmax; signum--; ) |
|
|
935 | if (signals [signum].gotsig) |
|
|
936 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
937 | } |
|
|
938 | |
|
|
939 | #if EV_ASYNC_ENABLE |
|
|
940 | if (gotasync) |
|
|
941 | { |
|
|
942 | int i; |
|
|
943 | gotasync = 0; |
|
|
944 | |
|
|
945 | for (i = asynccnt; i--; ) |
|
|
946 | if (asyncs [i]->sent) |
|
|
947 | { |
|
|
948 | asyncs [i]->sent = 0; |
|
|
949 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
950 | } |
|
|
951 | } |
|
|
952 | #endif |
862 | } |
953 | } |
863 | |
954 | |
864 | /*****************************************************************************/ |
955 | /*****************************************************************************/ |
865 | |
956 | |
|
|
957 | static void |
|
|
958 | ev_sighandler (int signum) |
|
|
959 | { |
|
|
960 | #if EV_MULTIPLICITY |
|
|
961 | struct ev_loop *loop = &default_loop_struct; |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | #if _WIN32 |
|
|
965 | signal (signum, ev_sighandler); |
|
|
966 | #endif |
|
|
967 | |
|
|
968 | signals [signum - 1].gotsig = 1; |
|
|
969 | evpipe_write (EV_A_ &gotsig); |
|
|
970 | } |
|
|
971 | |
|
|
972 | void noinline |
|
|
973 | ev_feed_signal_event (EV_P_ int signum) |
|
|
974 | { |
|
|
975 | WL w; |
|
|
976 | |
|
|
977 | #if EV_MULTIPLICITY |
|
|
978 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | --signum; |
|
|
982 | |
|
|
983 | if (signum < 0 || signum >= signalmax) |
|
|
984 | return; |
|
|
985 | |
|
|
986 | signals [signum].gotsig = 0; |
|
|
987 | |
|
|
988 | for (w = signals [signum].head; w; w = w->next) |
|
|
989 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
990 | } |
|
|
991 | |
|
|
992 | /*****************************************************************************/ |
|
|
993 | |
866 | static WL childs [EV_PID_HASHSIZE]; |
994 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
995 | |
868 | #ifndef _WIN32 |
996 | #ifndef _WIN32 |
869 | |
997 | |
870 | static ev_signal childev; |
998 | static ev_signal childev; |
871 | |
999 | |
|
|
1000 | #ifndef WIFCONTINUED |
|
|
1001 | # define WIFCONTINUED(status) 0 |
|
|
1002 | #endif |
|
|
1003 | |
872 | void inline_speed |
1004 | void inline_speed |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1005 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1006 | { |
875 | ev_child *w; |
1007 | ev_child *w; |
|
|
1008 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1009 | |
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1010 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1011 | { |
878 | if (w->pid == pid || !w->pid) |
1012 | if ((w->pid == pid || !w->pid) |
|
|
1013 | && (!traced || (w->flags & 1))) |
879 | { |
1014 | { |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1015 | 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; |
1016 | w->rpid = pid; |
882 | w->rstatus = status; |
1017 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1018 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1019 | } |
|
|
1020 | } |
885 | } |
1021 | } |
886 | |
1022 | |
887 | #ifndef WCONTINUED |
1023 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1024 | # define WCONTINUED 0 |
889 | #endif |
1025 | #endif |
… | |
… | |
898 | if (!WCONTINUED |
1034 | if (!WCONTINUED |
899 | || errno != EINVAL |
1035 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1036 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1037 | return; |
902 | |
1038 | |
903 | /* make sure we are called again until all childs have been reaped */ |
1039 | /* 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 */ |
1040 | /* 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); |
1041 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1042 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1043 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1044 | 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 */ |
1045 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1046 | } |
911 | |
1047 | |
912 | #endif |
1048 | #endif |
913 | |
1049 | |
914 | /*****************************************************************************/ |
1050 | /*****************************************************************************/ |
… | |
… | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1168 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1169 | have_monotonic = 1; |
1034 | } |
1170 | } |
1035 | #endif |
1171 | #endif |
1036 | |
1172 | |
1037 | ev_rt_now = ev_time (); |
1173 | ev_rt_now = ev_time (); |
1038 | mn_now = get_clock (); |
1174 | mn_now = get_clock (); |
1039 | now_floor = mn_now; |
1175 | now_floor = mn_now; |
1040 | rtmn_diff = ev_rt_now - mn_now; |
1176 | rtmn_diff = ev_rt_now - mn_now; |
1041 | |
1177 | |
1042 | io_blocktime = 0.; |
1178 | io_blocktime = 0.; |
1043 | timeout_blocktime = 0.; |
1179 | timeout_blocktime = 0.; |
|
|
1180 | backend = 0; |
|
|
1181 | backend_fd = -1; |
|
|
1182 | gotasync = 0; |
|
|
1183 | #if EV_USE_INOTIFY |
|
|
1184 | fs_fd = -2; |
|
|
1185 | #endif |
1044 | |
1186 | |
1045 | /* pid check not overridable via env */ |
1187 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1188 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1189 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1190 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1193 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1194 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1195 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1196 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1197 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1198 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1199 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1200 | |
1065 | #if EV_USE_PORT |
1201 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1202 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1203 | #endif |
1068 | #if EV_USE_KQUEUE |
1204 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1212 | #endif |
1077 | #if EV_USE_SELECT |
1213 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1214 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1215 | #endif |
1080 | |
1216 | |
1081 | ev_init (&sigev, sigcb); |
1217 | ev_init (&pipeev, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1218 | ev_set_priority (&pipeev, EV_MAXPRI); |
1083 | } |
1219 | } |
1084 | } |
1220 | } |
1085 | |
1221 | |
1086 | static void noinline |
1222 | static void noinline |
1087 | loop_destroy (EV_P) |
1223 | loop_destroy (EV_P) |
1088 | { |
1224 | { |
1089 | int i; |
1225 | int i; |
|
|
1226 | |
|
|
1227 | if (ev_is_active (&pipeev)) |
|
|
1228 | { |
|
|
1229 | ev_ref (EV_A); /* signal watcher */ |
|
|
1230 | ev_io_stop (EV_A_ &pipeev); |
|
|
1231 | |
|
|
1232 | #if EV_USE_EVENTFD |
|
|
1233 | if (evfd >= 0) |
|
|
1234 | close (evfd); |
|
|
1235 | #endif |
|
|
1236 | |
|
|
1237 | if (evpipe [0] >= 0) |
|
|
1238 | { |
|
|
1239 | close (evpipe [0]); |
|
|
1240 | close (evpipe [1]); |
|
|
1241 | } |
|
|
1242 | } |
1090 | |
1243 | |
1091 | #if EV_USE_INOTIFY |
1244 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1245 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1246 | close (fs_fd); |
1094 | #endif |
1247 | #endif |
… | |
… | |
1131 | #if EV_FORK_ENABLE |
1284 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1285 | array_free (fork, EMPTY); |
1133 | #endif |
1286 | #endif |
1134 | array_free (prepare, EMPTY); |
1287 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1288 | array_free (check, EMPTY); |
|
|
1289 | #if EV_ASYNC_ENABLE |
|
|
1290 | array_free (async, EMPTY); |
|
|
1291 | #endif |
1136 | |
1292 | |
1137 | backend = 0; |
1293 | backend = 0; |
1138 | } |
1294 | } |
1139 | |
1295 | |
|
|
1296 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1297 | void inline_size infy_fork (EV_P); |
|
|
1298 | #endif |
1141 | |
1299 | |
1142 | void inline_size |
1300 | void inline_size |
1143 | loop_fork (EV_P) |
1301 | loop_fork (EV_P) |
1144 | { |
1302 | { |
1145 | #if EV_USE_PORT |
1303 | #if EV_USE_PORT |
… | |
… | |
1153 | #endif |
1311 | #endif |
1154 | #if EV_USE_INOTIFY |
1312 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1313 | infy_fork (EV_A); |
1156 | #endif |
1314 | #endif |
1157 | |
1315 | |
1158 | if (ev_is_active (&sigev)) |
1316 | if (ev_is_active (&pipeev)) |
1159 | { |
1317 | { |
1160 | /* default loop */ |
1318 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1319 | /* while we modify the fd vars */ |
|
|
1320 | gotsig = 1; |
|
|
1321 | #if EV_ASYNC_ENABLE |
|
|
1322 | gotasync = 1; |
|
|
1323 | #endif |
1161 | |
1324 | |
1162 | ev_ref (EV_A); |
1325 | ev_ref (EV_A); |
1163 | ev_io_stop (EV_A_ &sigev); |
1326 | ev_io_stop (EV_A_ &pipeev); |
|
|
1327 | |
|
|
1328 | #if EV_USE_EVENTFD |
|
|
1329 | if (evfd >= 0) |
|
|
1330 | close (evfd); |
|
|
1331 | #endif |
|
|
1332 | |
|
|
1333 | if (evpipe [0] >= 0) |
|
|
1334 | { |
1164 | close (sigpipe [0]); |
1335 | close (evpipe [0]); |
1165 | close (sigpipe [1]); |
1336 | close (evpipe [1]); |
|
|
1337 | } |
1166 | |
1338 | |
1167 | while (pipe (sigpipe)) |
|
|
1168 | syserr ("(libev) error creating pipe"); |
|
|
1169 | |
|
|
1170 | siginit (EV_A); |
1339 | evpipe_init (EV_A); |
|
|
1340 | /* now iterate over everything, in case we missed something */ |
1171 | sigcb (EV_A_ &sigev, EV_READ); |
1341 | pipecb (EV_A_ &pipeev, EV_READ); |
1172 | } |
1342 | } |
1173 | |
1343 | |
1174 | postfork = 0; |
1344 | postfork = 0; |
1175 | } |
1345 | } |
1176 | |
1346 | |
… | |
… | |
1198 | } |
1368 | } |
1199 | |
1369 | |
1200 | void |
1370 | void |
1201 | ev_loop_fork (EV_P) |
1371 | ev_loop_fork (EV_P) |
1202 | { |
1372 | { |
1203 | postfork = 1; |
1373 | postfork = 1; /* must be in line with ev_default_fork */ |
1204 | } |
1374 | } |
1205 | |
1375 | |
1206 | #endif |
1376 | #endif |
1207 | |
1377 | |
1208 | #if EV_MULTIPLICITY |
1378 | #if EV_MULTIPLICITY |
… | |
… | |
1211 | #else |
1381 | #else |
1212 | int |
1382 | int |
1213 | ev_default_loop (unsigned int flags) |
1383 | ev_default_loop (unsigned int flags) |
1214 | #endif |
1384 | #endif |
1215 | { |
1385 | { |
1216 | if (sigpipe [0] == sigpipe [1]) |
|
|
1217 | if (pipe (sigpipe)) |
|
|
1218 | return 0; |
|
|
1219 | |
|
|
1220 | if (!ev_default_loop_ptr) |
1386 | if (!ev_default_loop_ptr) |
1221 | { |
1387 | { |
1222 | #if EV_MULTIPLICITY |
1388 | #if EV_MULTIPLICITY |
1223 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1389 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1224 | #else |
1390 | #else |
… | |
… | |
1227 | |
1393 | |
1228 | loop_init (EV_A_ flags); |
1394 | loop_init (EV_A_ flags); |
1229 | |
1395 | |
1230 | if (ev_backend (EV_A)) |
1396 | if (ev_backend (EV_A)) |
1231 | { |
1397 | { |
1232 | siginit (EV_A); |
|
|
1233 | |
|
|
1234 | #ifndef _WIN32 |
1398 | #ifndef _WIN32 |
1235 | ev_signal_init (&childev, childcb, SIGCHLD); |
1399 | ev_signal_init (&childev, childcb, SIGCHLD); |
1236 | ev_set_priority (&childev, EV_MAXPRI); |
1400 | ev_set_priority (&childev, EV_MAXPRI); |
1237 | ev_signal_start (EV_A_ &childev); |
1401 | ev_signal_start (EV_A_ &childev); |
1238 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1402 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1255 | #ifndef _WIN32 |
1419 | #ifndef _WIN32 |
1256 | ev_ref (EV_A); /* child watcher */ |
1420 | ev_ref (EV_A); /* child watcher */ |
1257 | ev_signal_stop (EV_A_ &childev); |
1421 | ev_signal_stop (EV_A_ &childev); |
1258 | #endif |
1422 | #endif |
1259 | |
1423 | |
1260 | ev_ref (EV_A); /* signal watcher */ |
|
|
1261 | ev_io_stop (EV_A_ &sigev); |
|
|
1262 | |
|
|
1263 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1264 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1265 | |
|
|
1266 | loop_destroy (EV_A); |
1424 | loop_destroy (EV_A); |
1267 | } |
1425 | } |
1268 | |
1426 | |
1269 | void |
1427 | void |
1270 | ev_default_fork (void) |
1428 | ev_default_fork (void) |
… | |
… | |
1272 | #if EV_MULTIPLICITY |
1430 | #if EV_MULTIPLICITY |
1273 | struct ev_loop *loop = ev_default_loop_ptr; |
1431 | struct ev_loop *loop = ev_default_loop_ptr; |
1274 | #endif |
1432 | #endif |
1275 | |
1433 | |
1276 | if (backend) |
1434 | if (backend) |
1277 | postfork = 1; |
1435 | postfork = 1; /* must be in line with ev_loop_fork */ |
1278 | } |
1436 | } |
1279 | |
1437 | |
1280 | /*****************************************************************************/ |
1438 | /*****************************************************************************/ |
1281 | |
1439 | |
1282 | void |
1440 | void |
… | |
… | |
1306 | } |
1464 | } |
1307 | |
1465 | |
1308 | void inline_size |
1466 | void inline_size |
1309 | timers_reify (EV_P) |
1467 | timers_reify (EV_P) |
1310 | { |
1468 | { |
1311 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1469 | while (timercnt && ev_at (timers [1]) <= mn_now) |
1312 | { |
1470 | { |
1313 | ev_timer *w = (ev_timer *)timers [0]; |
1471 | ev_timer *w = (ev_timer *)timers [1]; |
1314 | |
1472 | |
1315 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1473 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1316 | |
1474 | |
1317 | /* first reschedule or stop timer */ |
1475 | /* first reschedule or stop timer */ |
1318 | if (w->repeat) |
1476 | if (w->repeat) |
1319 | { |
1477 | { |
1320 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1478 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1321 | |
1479 | |
1322 | ((WT)w)->at += w->repeat; |
1480 | ev_at (w) += w->repeat; |
1323 | if (((WT)w)->at < mn_now) |
1481 | if (ev_at (w) < mn_now) |
1324 | ((WT)w)->at = mn_now; |
1482 | ev_at (w) = mn_now; |
1325 | |
1483 | |
1326 | downheap (timers, timercnt, 0); |
1484 | downheap (timers, timercnt, 1); |
1327 | } |
1485 | } |
1328 | else |
1486 | else |
1329 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1487 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1330 | |
1488 | |
1331 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1489 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1334 | |
1492 | |
1335 | #if EV_PERIODIC_ENABLE |
1493 | #if EV_PERIODIC_ENABLE |
1336 | void inline_size |
1494 | void inline_size |
1337 | periodics_reify (EV_P) |
1495 | periodics_reify (EV_P) |
1338 | { |
1496 | { |
1339 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1497 | while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now) |
1340 | { |
1498 | { |
1341 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1499 | ev_periodic *w = (ev_periodic *)periodics [1]; |
1342 | |
1500 | |
1343 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1501 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1344 | |
1502 | |
1345 | /* first reschedule or stop timer */ |
1503 | /* first reschedule or stop timer */ |
1346 | if (w->reschedule_cb) |
1504 | if (w->reschedule_cb) |
1347 | { |
1505 | { |
1348 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1506 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1349 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1507 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
1350 | downheap (periodics, periodiccnt, 0); |
1508 | downheap (periodics, periodiccnt, 1); |
1351 | } |
1509 | } |
1352 | else if (w->interval) |
1510 | else if (w->interval) |
1353 | { |
1511 | { |
1354 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1512 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1355 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1513 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
1356 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1514 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
1357 | downheap (periodics, periodiccnt, 0); |
1515 | downheap (periodics, periodiccnt, 1); |
1358 | } |
1516 | } |
1359 | else |
1517 | else |
1360 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1518 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1361 | |
1519 | |
1362 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1520 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1367 | periodics_reschedule (EV_P) |
1525 | periodics_reschedule (EV_P) |
1368 | { |
1526 | { |
1369 | int i; |
1527 | int i; |
1370 | |
1528 | |
1371 | /* adjust periodics after time jump */ |
1529 | /* adjust periodics after time jump */ |
1372 | for (i = 0; i < periodiccnt; ++i) |
1530 | for (i = 1; i <= periodiccnt; ++i) |
1373 | { |
1531 | { |
1374 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1532 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1375 | |
1533 | |
1376 | if (w->reschedule_cb) |
1534 | if (w->reschedule_cb) |
1377 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1535 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1378 | else if (w->interval) |
1536 | else if (w->interval) |
1379 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1537 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1380 | } |
1538 | } |
1381 | |
1539 | |
1382 | /* now rebuild the heap */ |
1540 | /* now rebuild the heap */ |
1383 | for (i = periodiccnt >> 1; i--; ) |
1541 | for (i = periodiccnt >> 1; i--; ) |
1384 | downheap (periodics, periodiccnt, i); |
1542 | downheap (periodics, periodiccnt, i); |
… | |
… | |
1466 | { |
1624 | { |
1467 | #if EV_PERIODIC_ENABLE |
1625 | #if EV_PERIODIC_ENABLE |
1468 | periodics_reschedule (EV_A); |
1626 | periodics_reschedule (EV_A); |
1469 | #endif |
1627 | #endif |
1470 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1628 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1471 | for (i = 0; i < timercnt; ++i) |
1629 | for (i = 1; i <= timercnt; ++i) |
1472 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1630 | ev_at (timers [i]) += ev_rt_now - mn_now; |
1473 | } |
1631 | } |
1474 | |
1632 | |
1475 | mn_now = ev_rt_now; |
1633 | mn_now = ev_rt_now; |
1476 | } |
1634 | } |
1477 | } |
1635 | } |
… | |
… | |
1491 | static int loop_done; |
1649 | static int loop_done; |
1492 | |
1650 | |
1493 | void |
1651 | void |
1494 | ev_loop (EV_P_ int flags) |
1652 | ev_loop (EV_P_ int flags) |
1495 | { |
1653 | { |
1496 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1654 | loop_done = EVUNLOOP_CANCEL; |
1497 | ? EVUNLOOP_ONE |
|
|
1498 | : EVUNLOOP_CANCEL; |
|
|
1499 | |
1655 | |
1500 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1656 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1501 | |
1657 | |
1502 | do |
1658 | do |
1503 | { |
1659 | { |
… | |
… | |
1549 | |
1705 | |
1550 | waittime = MAX_BLOCKTIME; |
1706 | waittime = MAX_BLOCKTIME; |
1551 | |
1707 | |
1552 | if (timercnt) |
1708 | if (timercnt) |
1553 | { |
1709 | { |
1554 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1710 | ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; |
1555 | if (waittime > to) waittime = to; |
1711 | if (waittime > to) waittime = to; |
1556 | } |
1712 | } |
1557 | |
1713 | |
1558 | #if EV_PERIODIC_ENABLE |
1714 | #if EV_PERIODIC_ENABLE |
1559 | if (periodiccnt) |
1715 | if (periodiccnt) |
1560 | { |
1716 | { |
1561 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1717 | ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; |
1562 | if (waittime > to) waittime = to; |
1718 | if (waittime > to) waittime = to; |
1563 | } |
1719 | } |
1564 | #endif |
1720 | #endif |
1565 | |
1721 | |
1566 | if (expect_false (waittime < timeout_blocktime)) |
1722 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1599 | /* queue check watchers, to be executed first */ |
1755 | /* queue check watchers, to be executed first */ |
1600 | if (expect_false (checkcnt)) |
1756 | if (expect_false (checkcnt)) |
1601 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1757 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1602 | |
1758 | |
1603 | call_pending (EV_A); |
1759 | call_pending (EV_A); |
1604 | |
|
|
1605 | } |
1760 | } |
1606 | while (expect_true (activecnt && !loop_done)); |
1761 | while (expect_true ( |
|
|
1762 | activecnt |
|
|
1763 | && !loop_done |
|
|
1764 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1765 | )); |
1607 | |
1766 | |
1608 | if (loop_done == EVUNLOOP_ONE) |
1767 | if (loop_done == EVUNLOOP_ONE) |
1609 | loop_done = EVUNLOOP_CANCEL; |
1768 | loop_done = EVUNLOOP_CANCEL; |
1610 | } |
1769 | } |
1611 | |
1770 | |
… | |
… | |
1729 | ev_timer_start (EV_P_ ev_timer *w) |
1888 | ev_timer_start (EV_P_ ev_timer *w) |
1730 | { |
1889 | { |
1731 | if (expect_false (ev_is_active (w))) |
1890 | if (expect_false (ev_is_active (w))) |
1732 | return; |
1891 | return; |
1733 | |
1892 | |
1734 | ((WT)w)->at += mn_now; |
1893 | ev_at (w) += mn_now; |
1735 | |
1894 | |
1736 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1895 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1737 | |
1896 | |
1738 | ev_start (EV_A_ (W)w, ++timercnt); |
1897 | ev_start (EV_A_ (W)w, ++timercnt); |
1739 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1898 | array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); |
1740 | timers [timercnt - 1] = (WT)w; |
1899 | timers [timercnt] = (WT)w; |
1741 | upheap (timers, timercnt - 1); |
1900 | upheap (timers, timercnt); |
1742 | |
1901 | |
1743 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1902 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
1744 | } |
1903 | } |
1745 | |
1904 | |
1746 | void noinline |
1905 | void noinline |
1747 | ev_timer_stop (EV_P_ ev_timer *w) |
1906 | ev_timer_stop (EV_P_ ev_timer *w) |
1748 | { |
1907 | { |
1749 | clear_pending (EV_A_ (W)w); |
1908 | clear_pending (EV_A_ (W)w); |
1750 | if (expect_false (!ev_is_active (w))) |
1909 | if (expect_false (!ev_is_active (w))) |
1751 | return; |
1910 | return; |
1752 | |
1911 | |
1753 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1754 | |
|
|
1755 | { |
1912 | { |
1756 | int active = ((W)w)->active; |
1913 | int active = ev_active (w); |
1757 | |
1914 | |
|
|
1915 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
|
|
1916 | |
1758 | if (expect_true (--active < --timercnt)) |
1917 | if (expect_true (active < timercnt)) |
1759 | { |
1918 | { |
1760 | timers [active] = timers [timercnt]; |
1919 | timers [active] = timers [timercnt]; |
1761 | adjustheap (timers, timercnt, active); |
1920 | adjustheap (timers, timercnt, active); |
1762 | } |
1921 | } |
|
|
1922 | |
|
|
1923 | --timercnt; |
1763 | } |
1924 | } |
1764 | |
1925 | |
1765 | ((WT)w)->at -= mn_now; |
1926 | ev_at (w) -= mn_now; |
1766 | |
1927 | |
1767 | ev_stop (EV_A_ (W)w); |
1928 | ev_stop (EV_A_ (W)w); |
1768 | } |
1929 | } |
1769 | |
1930 | |
1770 | void noinline |
1931 | void noinline |
… | |
… | |
1772 | { |
1933 | { |
1773 | if (ev_is_active (w)) |
1934 | if (ev_is_active (w)) |
1774 | { |
1935 | { |
1775 | if (w->repeat) |
1936 | if (w->repeat) |
1776 | { |
1937 | { |
1777 | ((WT)w)->at = mn_now + w->repeat; |
1938 | ev_at (w) = mn_now + w->repeat; |
1778 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1939 | adjustheap (timers, timercnt, ev_active (w)); |
1779 | } |
1940 | } |
1780 | else |
1941 | else |
1781 | ev_timer_stop (EV_A_ w); |
1942 | ev_timer_stop (EV_A_ w); |
1782 | } |
1943 | } |
1783 | else if (w->repeat) |
1944 | else if (w->repeat) |
1784 | { |
1945 | { |
1785 | w->at = w->repeat; |
1946 | ev_at (w) = w->repeat; |
1786 | ev_timer_start (EV_A_ w); |
1947 | ev_timer_start (EV_A_ w); |
1787 | } |
1948 | } |
1788 | } |
1949 | } |
1789 | |
1950 | |
1790 | #if EV_PERIODIC_ENABLE |
1951 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1793 | { |
1954 | { |
1794 | if (expect_false (ev_is_active (w))) |
1955 | if (expect_false (ev_is_active (w))) |
1795 | return; |
1956 | return; |
1796 | |
1957 | |
1797 | if (w->reschedule_cb) |
1958 | if (w->reschedule_cb) |
1798 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1959 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1799 | else if (w->interval) |
1960 | else if (w->interval) |
1800 | { |
1961 | { |
1801 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1962 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1802 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1963 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1803 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1964 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1804 | } |
1965 | } |
1805 | else |
1966 | else |
1806 | ((WT)w)->at = w->offset; |
1967 | ev_at (w) = w->offset; |
1807 | |
1968 | |
1808 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1969 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1809 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1970 | array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); |
1810 | periodics [periodiccnt - 1] = (WT)w; |
1971 | periodics [periodiccnt] = (WT)w; |
1811 | upheap (periodics, periodiccnt - 1); |
1972 | upheap (periodics, periodiccnt); |
1812 | |
1973 | |
1813 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1974 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
1814 | } |
1975 | } |
1815 | |
1976 | |
1816 | void noinline |
1977 | void noinline |
1817 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1978 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1818 | { |
1979 | { |
1819 | clear_pending (EV_A_ (W)w); |
1980 | clear_pending (EV_A_ (W)w); |
1820 | if (expect_false (!ev_is_active (w))) |
1981 | if (expect_false (!ev_is_active (w))) |
1821 | return; |
1982 | return; |
1822 | |
1983 | |
1823 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1824 | |
|
|
1825 | { |
1984 | { |
1826 | int active = ((W)w)->active; |
1985 | int active = ev_active (w); |
1827 | |
1986 | |
|
|
1987 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
|
|
1988 | |
1828 | if (expect_true (--active < --periodiccnt)) |
1989 | if (expect_true (active < periodiccnt)) |
1829 | { |
1990 | { |
1830 | periodics [active] = periodics [periodiccnt]; |
1991 | periodics [active] = periodics [periodiccnt]; |
1831 | adjustheap (periodics, periodiccnt, active); |
1992 | adjustheap (periodics, periodiccnt, active); |
1832 | } |
1993 | } |
|
|
1994 | |
|
|
1995 | --periodiccnt; |
1833 | } |
1996 | } |
1834 | |
1997 | |
1835 | ev_stop (EV_A_ (W)w); |
1998 | ev_stop (EV_A_ (W)w); |
1836 | } |
1999 | } |
1837 | |
2000 | |
… | |
… | |
1856 | #endif |
2019 | #endif |
1857 | if (expect_false (ev_is_active (w))) |
2020 | if (expect_false (ev_is_active (w))) |
1858 | return; |
2021 | return; |
1859 | |
2022 | |
1860 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2023 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2024 | |
|
|
2025 | evpipe_init (EV_A); |
1861 | |
2026 | |
1862 | { |
2027 | { |
1863 | #ifndef _WIN32 |
2028 | #ifndef _WIN32 |
1864 | sigset_t full, prev; |
2029 | sigset_t full, prev; |
1865 | sigfillset (&full); |
2030 | sigfillset (&full); |
… | |
… | |
1877 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2042 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1878 | |
2043 | |
1879 | if (!((WL)w)->next) |
2044 | if (!((WL)w)->next) |
1880 | { |
2045 | { |
1881 | #if _WIN32 |
2046 | #if _WIN32 |
1882 | signal (w->signum, sighandler); |
2047 | signal (w->signum, ev_sighandler); |
1883 | #else |
2048 | #else |
1884 | struct sigaction sa; |
2049 | struct sigaction sa; |
1885 | sa.sa_handler = sighandler; |
2050 | sa.sa_handler = ev_sighandler; |
1886 | sigfillset (&sa.sa_mask); |
2051 | sigfillset (&sa.sa_mask); |
1887 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2052 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1888 | sigaction (w->signum, &sa, 0); |
2053 | sigaction (w->signum, &sa, 0); |
1889 | #endif |
2054 | #endif |
1890 | } |
2055 | } |
… | |
… | |
2205 | clear_pending (EV_A_ (W)w); |
2370 | clear_pending (EV_A_ (W)w); |
2206 | if (expect_false (!ev_is_active (w))) |
2371 | if (expect_false (!ev_is_active (w))) |
2207 | return; |
2372 | return; |
2208 | |
2373 | |
2209 | { |
2374 | { |
2210 | int active = ((W)w)->active; |
2375 | int active = ev_active (w); |
2211 | |
2376 | |
2212 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2377 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2213 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2378 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2214 | |
2379 | |
2215 | ev_stop (EV_A_ (W)w); |
2380 | ev_stop (EV_A_ (W)w); |
2216 | --idleall; |
2381 | --idleall; |
2217 | } |
2382 | } |
2218 | } |
2383 | } |
… | |
… | |
2235 | clear_pending (EV_A_ (W)w); |
2400 | clear_pending (EV_A_ (W)w); |
2236 | if (expect_false (!ev_is_active (w))) |
2401 | if (expect_false (!ev_is_active (w))) |
2237 | return; |
2402 | return; |
2238 | |
2403 | |
2239 | { |
2404 | { |
2240 | int active = ((W)w)->active; |
2405 | int active = ev_active (w); |
|
|
2406 | |
2241 | prepares [active - 1] = prepares [--preparecnt]; |
2407 | prepares [active - 1] = prepares [--preparecnt]; |
2242 | ((W)prepares [active - 1])->active = active; |
2408 | ev_active (prepares [active - 1]) = active; |
2243 | } |
2409 | } |
2244 | |
2410 | |
2245 | ev_stop (EV_A_ (W)w); |
2411 | ev_stop (EV_A_ (W)w); |
2246 | } |
2412 | } |
2247 | |
2413 | |
… | |
… | |
2262 | clear_pending (EV_A_ (W)w); |
2428 | clear_pending (EV_A_ (W)w); |
2263 | if (expect_false (!ev_is_active (w))) |
2429 | if (expect_false (!ev_is_active (w))) |
2264 | return; |
2430 | return; |
2265 | |
2431 | |
2266 | { |
2432 | { |
2267 | int active = ((W)w)->active; |
2433 | int active = ev_active (w); |
|
|
2434 | |
2268 | checks [active - 1] = checks [--checkcnt]; |
2435 | checks [active - 1] = checks [--checkcnt]; |
2269 | ((W)checks [active - 1])->active = active; |
2436 | ev_active (checks [active - 1]) = active; |
2270 | } |
2437 | } |
2271 | |
2438 | |
2272 | ev_stop (EV_A_ (W)w); |
2439 | ev_stop (EV_A_ (W)w); |
2273 | } |
2440 | } |
2274 | |
2441 | |
… | |
… | |
2370 | clear_pending (EV_A_ (W)w); |
2537 | clear_pending (EV_A_ (W)w); |
2371 | if (expect_false (!ev_is_active (w))) |
2538 | if (expect_false (!ev_is_active (w))) |
2372 | return; |
2539 | return; |
2373 | |
2540 | |
2374 | { |
2541 | { |
2375 | int active = ((W)w)->active; |
2542 | int active = ev_active (w); |
|
|
2543 | |
2376 | forks [active - 1] = forks [--forkcnt]; |
2544 | forks [active - 1] = forks [--forkcnt]; |
2377 | ((W)forks [active - 1])->active = active; |
2545 | ev_active (forks [active - 1]) = active; |
2378 | } |
2546 | } |
2379 | |
2547 | |
2380 | ev_stop (EV_A_ (W)w); |
2548 | ev_stop (EV_A_ (W)w); |
|
|
2549 | } |
|
|
2550 | #endif |
|
|
2551 | |
|
|
2552 | #if EV_ASYNC_ENABLE |
|
|
2553 | void |
|
|
2554 | ev_async_start (EV_P_ ev_async *w) |
|
|
2555 | { |
|
|
2556 | if (expect_false (ev_is_active (w))) |
|
|
2557 | return; |
|
|
2558 | |
|
|
2559 | evpipe_init (EV_A); |
|
|
2560 | |
|
|
2561 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2562 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2563 | asyncs [asynccnt - 1] = w; |
|
|
2564 | } |
|
|
2565 | |
|
|
2566 | void |
|
|
2567 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2568 | { |
|
|
2569 | clear_pending (EV_A_ (W)w); |
|
|
2570 | if (expect_false (!ev_is_active (w))) |
|
|
2571 | return; |
|
|
2572 | |
|
|
2573 | { |
|
|
2574 | int active = ev_active (w); |
|
|
2575 | |
|
|
2576 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2577 | ev_active (asyncs [active - 1]) = active; |
|
|
2578 | } |
|
|
2579 | |
|
|
2580 | ev_stop (EV_A_ (W)w); |
|
|
2581 | } |
|
|
2582 | |
|
|
2583 | void |
|
|
2584 | ev_async_send (EV_P_ ev_async *w) |
|
|
2585 | { |
|
|
2586 | w->sent = 1; |
|
|
2587 | evpipe_write (EV_A_ &gotasync); |
2381 | } |
2588 | } |
2382 | #endif |
2589 | #endif |
2383 | |
2590 | |
2384 | /*****************************************************************************/ |
2591 | /*****************************************************************************/ |
2385 | |
2592 | |