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 | */ |
|
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375 | |
|
|
376 | if (size) |
|
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377 | return realloc (ptr, size); |
|
|
378 | |
|
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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 (); |
… | |
… | |
367 | W w; |
422 | W w; |
368 | int events; |
423 | int events; |
369 | } ANPENDING; |
424 | } ANPENDING; |
370 | |
425 | |
371 | #if EV_USE_INOTIFY |
426 | #if EV_USE_INOTIFY |
|
|
427 | /* hash table entry per inotify-id */ |
372 | typedef struct |
428 | typedef struct |
373 | { |
429 | { |
374 | WL head; |
430 | WL head; |
375 | } ANFS; |
431 | } ANFS; |
|
|
432 | #endif |
|
|
433 | |
|
|
434 | /* Heap Entry */ |
|
|
435 | #if EV_HEAP_CACHE_AT |
|
|
436 | typedef struct { |
|
|
437 | WT w; |
|
|
438 | ev_tstamp at; |
|
|
439 | } ANHE; |
|
|
440 | |
|
|
441 | #define ANHE_w(he) (he) /* access watcher, read-write */ |
|
|
442 | #define ANHE_at(he) (he)->at /* acces cahced at, read-only */ |
|
|
443 | #define ANHE_at_set(he) (he)->at = (he)->w->at /* update at from watcher */ |
|
|
444 | #else |
|
|
445 | typedef WT ANHE; |
|
|
446 | |
|
|
447 | #define ANHE_w(he) (he) |
|
|
448 | #define ANHE_at(he) (he)->at |
|
|
449 | #define ANHE_at_set(he) |
376 | #endif |
450 | #endif |
377 | |
451 | |
378 | #if EV_MULTIPLICITY |
452 | #if EV_MULTIPLICITY |
379 | |
453 | |
380 | struct ev_loop |
454 | struct ev_loop |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
525 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
526 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
527 | |
454 | nanosleep (&ts, 0); |
528 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
529 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
530 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
531 | #else |
458 | struct timeval tv; |
532 | struct timeval tv; |
459 | |
533 | |
460 | tv.tv_sec = (time_t)delay; |
534 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
535 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
464 | #endif |
538 | #endif |
465 | } |
539 | } |
466 | } |
540 | } |
467 | |
541 | |
468 | /*****************************************************************************/ |
542 | /*****************************************************************************/ |
|
|
543 | |
|
|
544 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
469 | |
545 | |
470 | int inline_size |
546 | int inline_size |
471 | array_nextsize (int elem, int cur, int cnt) |
547 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
548 | { |
473 | int ncur = cur + 1; |
549 | int ncur = cur + 1; |
474 | |
550 | |
475 | do |
551 | do |
476 | ncur <<= 1; |
552 | ncur <<= 1; |
477 | while (cnt > ncur); |
553 | while (cnt > ncur); |
478 | |
554 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
555 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
556 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
557 | { |
482 | ncur *= elem; |
558 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
559 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
560 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
561 | ncur /= elem; |
486 | } |
562 | } |
487 | |
563 | |
488 | return ncur; |
564 | return ncur; |
… | |
… | |
702 | } |
778 | } |
703 | } |
779 | } |
704 | |
780 | |
705 | /*****************************************************************************/ |
781 | /*****************************************************************************/ |
706 | |
782 | |
|
|
783 | /* |
|
|
784 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
785 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
786 | * the branching factor of the d-tree. |
|
|
787 | */ |
|
|
788 | |
|
|
789 | /* |
|
|
790 | * at the moment we allow libev the luxury of two heaps, |
|
|
791 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
792 | * which is more cache-efficient. |
|
|
793 | * the difference is about 5% with 50000+ watchers. |
|
|
794 | */ |
|
|
795 | #define EV_USE_4HEAP !EV_MINIMAL |
|
|
796 | #if EV_USE_4HEAP |
|
|
797 | |
|
|
798 | #define DHEAP 4 |
|
|
799 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
800 | |
|
|
801 | /* towards the root */ |
707 | void inline_speed |
802 | void inline_speed |
708 | upheap (WT *heap, int k) |
803 | upheap (ANHE *heap, int k) |
709 | { |
804 | { |
710 | WT w = heap [k]; |
805 | ANHE he = heap [k]; |
711 | |
806 | |
712 | while (k) |
807 | for (;;) |
713 | { |
808 | { |
714 | int p = (k - 1) >> 1; |
809 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
715 | |
810 | |
716 | if (heap [p]->at <= w->at) |
811 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
717 | break; |
812 | break; |
718 | |
813 | |
719 | heap [k] = heap [p]; |
814 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
815 | ev_active (ANHE_w (heap [k])) = k; |
721 | k = p; |
816 | k = p; |
722 | } |
817 | } |
723 | |
818 | |
|
|
819 | ev_active (ANHE_w (he)) = k; |
|
|
820 | heap [k] = he; |
|
|
821 | } |
|
|
822 | |
|
|
823 | /* away from the root */ |
|
|
824 | void inline_speed |
|
|
825 | downheap (ANHE *heap, int N, int k) |
|
|
826 | { |
|
|
827 | ANHE he = heap [k]; |
|
|
828 | ANHE *E = heap + N + HEAP0; |
|
|
829 | |
|
|
830 | for (;;) |
|
|
831 | { |
|
|
832 | ev_tstamp minat; |
|
|
833 | ANHE *minpos; |
|
|
834 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
|
|
835 | |
|
|
836 | // find minimum child |
|
|
837 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
838 | { |
|
|
839 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
840 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
841 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
842 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
843 | } |
|
|
844 | else if (pos < E) |
|
|
845 | { |
|
|
846 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
847 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
848 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
849 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
850 | } |
|
|
851 | else |
|
|
852 | break; |
|
|
853 | |
|
|
854 | if (ANHE_at (he) <= minat) |
|
|
855 | break; |
|
|
856 | |
|
|
857 | ev_active (ANHE_w (*minpos)) = k; |
|
|
858 | heap [k] = *minpos; |
|
|
859 | |
|
|
860 | k = minpos - heap; |
|
|
861 | } |
|
|
862 | |
|
|
863 | ev_active (ANHE_w (he)) = k; |
|
|
864 | heap [k] = he; |
|
|
865 | } |
|
|
866 | |
|
|
867 | #else // 4HEAP |
|
|
868 | |
|
|
869 | #define HEAP0 1 |
|
|
870 | |
|
|
871 | /* towards the root */ |
|
|
872 | void inline_speed |
|
|
873 | upheap (ANHE *heap, int k) |
|
|
874 | { |
|
|
875 | ANHE he = heap [k]; |
|
|
876 | |
|
|
877 | for (;;) |
|
|
878 | { |
|
|
879 | int p = k >> 1; |
|
|
880 | |
|
|
881 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
882 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
883 | break; |
|
|
884 | |
|
|
885 | heap [k] = heap [p]; |
|
|
886 | ev_active (ANHE_w (heap [k])) = k; |
|
|
887 | k = p; |
|
|
888 | } |
|
|
889 | |
724 | heap [k] = w; |
890 | heap [k] = w; |
725 | ((W)heap [k])->active = k + 1; |
891 | ev_active (ANHE_w (heap [k])) = k; |
726 | } |
892 | } |
727 | |
893 | |
|
|
894 | /* away from the root */ |
728 | void inline_speed |
895 | void inline_speed |
729 | downheap (WT *heap, int N, int k) |
896 | downheap (ANHE *heap, int N, int k) |
730 | { |
897 | { |
731 | WT w = heap [k]; |
898 | ANHE he = heap [k]; |
732 | |
899 | |
733 | for (;;) |
900 | for (;;) |
734 | { |
901 | { |
735 | int c = (k << 1) + 1; |
902 | int c = k << 1; |
736 | |
903 | |
737 | if (c >= N) |
904 | if (c > N) |
738 | break; |
905 | break; |
739 | |
906 | |
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
907 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
741 | ? 1 : 0; |
908 | ? 1 : 0; |
742 | |
909 | |
743 | if (w->at <= heap [c]->at) |
910 | if (w->at <= ANHE_at (heap [c])) |
744 | break; |
911 | break; |
745 | |
912 | |
746 | heap [k] = heap [c]; |
913 | heap [k] = heap [c]; |
747 | ((W)heap [k])->active = k + 1; |
914 | ev_active (ANHE_w (heap [k])) = k; |
748 | |
915 | |
749 | k = c; |
916 | k = c; |
750 | } |
917 | } |
751 | |
918 | |
752 | heap [k] = w; |
919 | heap [k] = he; |
753 | ((W)heap [k])->active = k + 1; |
920 | ev_active (ANHE_w (he)) = k; |
754 | } |
921 | } |
|
|
922 | #endif |
755 | |
923 | |
756 | void inline_size |
924 | void inline_size |
757 | adjustheap (WT *heap, int N, int k) |
925 | adjustheap (ANHE *heap, int N, int k) |
758 | { |
926 | { |
759 | upheap (heap, k); |
927 | upheap (heap, k); |
760 | downheap (heap, N, k); |
928 | downheap (heap, N, k); |
761 | } |
929 | } |
762 | |
930 | |
763 | /*****************************************************************************/ |
931 | /*****************************************************************************/ |
764 | |
932 | |
765 | typedef struct |
933 | typedef struct |
766 | { |
934 | { |
767 | WL head; |
935 | WL head; |
768 | sig_atomic_t volatile gotsig; |
936 | EV_ATOMIC_T gotsig; |
769 | } ANSIG; |
937 | } ANSIG; |
770 | |
938 | |
771 | static ANSIG *signals; |
939 | static ANSIG *signals; |
772 | static int signalmax; |
940 | static int signalmax; |
773 | |
941 | |
774 | static int sigpipe [2]; |
942 | static EV_ATOMIC_T gotsig; |
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
943 | |
778 | void inline_size |
944 | void inline_size |
779 | signals_init (ANSIG *base, int count) |
945 | signals_init (ANSIG *base, int count) |
780 | { |
946 | { |
781 | while (count--) |
947 | while (count--) |
… | |
… | |
785 | |
951 | |
786 | ++base; |
952 | ++base; |
787 | } |
953 | } |
788 | } |
954 | } |
789 | |
955 | |
790 | static void |
956 | /*****************************************************************************/ |
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 | |
957 | |
841 | void inline_speed |
958 | void inline_speed |
842 | fd_intern (int fd) |
959 | fd_intern (int fd) |
843 | { |
960 | { |
844 | #ifdef _WIN32 |
961 | #ifdef _WIN32 |
… | |
… | |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
966 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
967 | #endif |
851 | } |
968 | } |
852 | |
969 | |
853 | static void noinline |
970 | static void noinline |
854 | siginit (EV_P) |
971 | evpipe_init (EV_P) |
855 | { |
972 | { |
|
|
973 | if (!ev_is_active (&pipeev)) |
|
|
974 | { |
|
|
975 | #if EV_USE_EVENTFD |
|
|
976 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
977 | { |
|
|
978 | evpipe [0] = -1; |
|
|
979 | fd_intern (evfd); |
|
|
980 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
981 | } |
|
|
982 | else |
|
|
983 | #endif |
|
|
984 | { |
|
|
985 | while (pipe (evpipe)) |
|
|
986 | syserr ("(libev) error creating signal/async pipe"); |
|
|
987 | |
856 | fd_intern (sigpipe [0]); |
988 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
989 | fd_intern (evpipe [1]); |
|
|
990 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
991 | } |
858 | |
992 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
993 | ev_io_start (EV_A_ &pipeev); |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
994 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
995 | } |
|
|
996 | } |
|
|
997 | |
|
|
998 | void inline_size |
|
|
999 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1000 | { |
|
|
1001 | if (!*flag) |
|
|
1002 | { |
|
|
1003 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1004 | |
|
|
1005 | *flag = 1; |
|
|
1006 | |
|
|
1007 | #if EV_USE_EVENTFD |
|
|
1008 | if (evfd >= 0) |
|
|
1009 | { |
|
|
1010 | uint64_t counter = 1; |
|
|
1011 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1012 | } |
|
|
1013 | else |
|
|
1014 | #endif |
|
|
1015 | write (evpipe [1], &old_errno, 1); |
|
|
1016 | |
|
|
1017 | errno = old_errno; |
|
|
1018 | } |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | static void |
|
|
1022 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1023 | { |
|
|
1024 | #if EV_USE_EVENTFD |
|
|
1025 | if (evfd >= 0) |
|
|
1026 | { |
|
|
1027 | uint64_t counter; |
|
|
1028 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1029 | } |
|
|
1030 | else |
|
|
1031 | #endif |
|
|
1032 | { |
|
|
1033 | char dummy; |
|
|
1034 | read (evpipe [0], &dummy, 1); |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1038 | { |
|
|
1039 | int signum; |
|
|
1040 | gotsig = 0; |
|
|
1041 | |
|
|
1042 | for (signum = signalmax; signum--; ) |
|
|
1043 | if (signals [signum].gotsig) |
|
|
1044 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | #if EV_ASYNC_ENABLE |
|
|
1048 | if (gotasync) |
|
|
1049 | { |
|
|
1050 | int i; |
|
|
1051 | gotasync = 0; |
|
|
1052 | |
|
|
1053 | for (i = asynccnt; i--; ) |
|
|
1054 | if (asyncs [i]->sent) |
|
|
1055 | { |
|
|
1056 | asyncs [i]->sent = 0; |
|
|
1057 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1058 | } |
|
|
1059 | } |
|
|
1060 | #endif |
862 | } |
1061 | } |
863 | |
1062 | |
864 | /*****************************************************************************/ |
1063 | /*****************************************************************************/ |
865 | |
1064 | |
|
|
1065 | static void |
|
|
1066 | ev_sighandler (int signum) |
|
|
1067 | { |
|
|
1068 | #if EV_MULTIPLICITY |
|
|
1069 | struct ev_loop *loop = &default_loop_struct; |
|
|
1070 | #endif |
|
|
1071 | |
|
|
1072 | #if _WIN32 |
|
|
1073 | signal (signum, ev_sighandler); |
|
|
1074 | #endif |
|
|
1075 | |
|
|
1076 | signals [signum - 1].gotsig = 1; |
|
|
1077 | evpipe_write (EV_A_ &gotsig); |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | void noinline |
|
|
1081 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1082 | { |
|
|
1083 | WL w; |
|
|
1084 | |
|
|
1085 | #if EV_MULTIPLICITY |
|
|
1086 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1087 | #endif |
|
|
1088 | |
|
|
1089 | --signum; |
|
|
1090 | |
|
|
1091 | if (signum < 0 || signum >= signalmax) |
|
|
1092 | return; |
|
|
1093 | |
|
|
1094 | signals [signum].gotsig = 0; |
|
|
1095 | |
|
|
1096 | for (w = signals [signum].head; w; w = w->next) |
|
|
1097 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | /*****************************************************************************/ |
|
|
1101 | |
866 | static WL childs [EV_PID_HASHSIZE]; |
1102 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
1103 | |
868 | #ifndef _WIN32 |
1104 | #ifndef _WIN32 |
869 | |
1105 | |
870 | static ev_signal childev; |
1106 | static ev_signal childev; |
871 | |
1107 | |
|
|
1108 | #ifndef WIFCONTINUED |
|
|
1109 | # define WIFCONTINUED(status) 0 |
|
|
1110 | #endif |
|
|
1111 | |
872 | void inline_speed |
1112 | void inline_speed |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1113 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1114 | { |
875 | ev_child *w; |
1115 | ev_child *w; |
|
|
1116 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1117 | |
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1118 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1119 | { |
878 | if (w->pid == pid || !w->pid) |
1120 | if ((w->pid == pid || !w->pid) |
|
|
1121 | && (!traced || (w->flags & 1))) |
879 | { |
1122 | { |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1123 | 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; |
1124 | w->rpid = pid; |
882 | w->rstatus = status; |
1125 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1126 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1127 | } |
|
|
1128 | } |
885 | } |
1129 | } |
886 | |
1130 | |
887 | #ifndef WCONTINUED |
1131 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1132 | # define WCONTINUED 0 |
889 | #endif |
1133 | #endif |
… | |
… | |
898 | if (!WCONTINUED |
1142 | if (!WCONTINUED |
899 | || errno != EINVAL |
1143 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1144 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1145 | return; |
902 | |
1146 | |
903 | /* make sure we are called again until all childs have been reaped */ |
1147 | /* 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 */ |
1148 | /* 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); |
1149 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1150 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1151 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1152 | 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 */ |
1153 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1154 | } |
911 | |
1155 | |
912 | #endif |
1156 | #endif |
913 | |
1157 | |
914 | /*****************************************************************************/ |
1158 | /*****************************************************************************/ |
… | |
… | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1276 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1277 | have_monotonic = 1; |
1034 | } |
1278 | } |
1035 | #endif |
1279 | #endif |
1036 | |
1280 | |
1037 | ev_rt_now = ev_time (); |
1281 | ev_rt_now = ev_time (); |
1038 | mn_now = get_clock (); |
1282 | mn_now = get_clock (); |
1039 | now_floor = mn_now; |
1283 | now_floor = mn_now; |
1040 | rtmn_diff = ev_rt_now - mn_now; |
1284 | rtmn_diff = ev_rt_now - mn_now; |
1041 | |
1285 | |
1042 | io_blocktime = 0.; |
1286 | io_blocktime = 0.; |
1043 | timeout_blocktime = 0.; |
1287 | timeout_blocktime = 0.; |
|
|
1288 | backend = 0; |
|
|
1289 | backend_fd = -1; |
|
|
1290 | gotasync = 0; |
|
|
1291 | #if EV_USE_INOTIFY |
|
|
1292 | fs_fd = -2; |
|
|
1293 | #endif |
1044 | |
1294 | |
1045 | /* pid check not overridable via env */ |
1295 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1296 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1297 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1298 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1301 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1302 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1303 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1304 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1305 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1306 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1307 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1308 | |
1065 | #if EV_USE_PORT |
1309 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1310 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1311 | #endif |
1068 | #if EV_USE_KQUEUE |
1312 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1320 | #endif |
1077 | #if EV_USE_SELECT |
1321 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1322 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1323 | #endif |
1080 | |
1324 | |
1081 | ev_init (&sigev, sigcb); |
1325 | ev_init (&pipeev, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1326 | ev_set_priority (&pipeev, EV_MAXPRI); |
1083 | } |
1327 | } |
1084 | } |
1328 | } |
1085 | |
1329 | |
1086 | static void noinline |
1330 | static void noinline |
1087 | loop_destroy (EV_P) |
1331 | loop_destroy (EV_P) |
1088 | { |
1332 | { |
1089 | int i; |
1333 | int i; |
|
|
1334 | |
|
|
1335 | if (ev_is_active (&pipeev)) |
|
|
1336 | { |
|
|
1337 | ev_ref (EV_A); /* signal watcher */ |
|
|
1338 | ev_io_stop (EV_A_ &pipeev); |
|
|
1339 | |
|
|
1340 | #if EV_USE_EVENTFD |
|
|
1341 | if (evfd >= 0) |
|
|
1342 | close (evfd); |
|
|
1343 | #endif |
|
|
1344 | |
|
|
1345 | if (evpipe [0] >= 0) |
|
|
1346 | { |
|
|
1347 | close (evpipe [0]); |
|
|
1348 | close (evpipe [1]); |
|
|
1349 | } |
|
|
1350 | } |
1090 | |
1351 | |
1091 | #if EV_USE_INOTIFY |
1352 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1353 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1354 | close (fs_fd); |
1094 | #endif |
1355 | #endif |
… | |
… | |
1131 | #if EV_FORK_ENABLE |
1392 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1393 | array_free (fork, EMPTY); |
1133 | #endif |
1394 | #endif |
1134 | array_free (prepare, EMPTY); |
1395 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1396 | array_free (check, EMPTY); |
|
|
1397 | #if EV_ASYNC_ENABLE |
|
|
1398 | array_free (async, EMPTY); |
|
|
1399 | #endif |
1136 | |
1400 | |
1137 | backend = 0; |
1401 | backend = 0; |
1138 | } |
1402 | } |
1139 | |
1403 | |
|
|
1404 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1405 | void inline_size infy_fork (EV_P); |
|
|
1406 | #endif |
1141 | |
1407 | |
1142 | void inline_size |
1408 | void inline_size |
1143 | loop_fork (EV_P) |
1409 | loop_fork (EV_P) |
1144 | { |
1410 | { |
1145 | #if EV_USE_PORT |
1411 | #if EV_USE_PORT |
… | |
… | |
1153 | #endif |
1419 | #endif |
1154 | #if EV_USE_INOTIFY |
1420 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1421 | infy_fork (EV_A); |
1156 | #endif |
1422 | #endif |
1157 | |
1423 | |
1158 | if (ev_is_active (&sigev)) |
1424 | if (ev_is_active (&pipeev)) |
1159 | { |
1425 | { |
1160 | /* default loop */ |
1426 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1427 | /* while we modify the fd vars */ |
|
|
1428 | gotsig = 1; |
|
|
1429 | #if EV_ASYNC_ENABLE |
|
|
1430 | gotasync = 1; |
|
|
1431 | #endif |
1161 | |
1432 | |
1162 | ev_ref (EV_A); |
1433 | ev_ref (EV_A); |
1163 | ev_io_stop (EV_A_ &sigev); |
1434 | ev_io_stop (EV_A_ &pipeev); |
|
|
1435 | |
|
|
1436 | #if EV_USE_EVENTFD |
|
|
1437 | if (evfd >= 0) |
|
|
1438 | close (evfd); |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | if (evpipe [0] >= 0) |
|
|
1442 | { |
1164 | close (sigpipe [0]); |
1443 | close (evpipe [0]); |
1165 | close (sigpipe [1]); |
1444 | close (evpipe [1]); |
|
|
1445 | } |
1166 | |
1446 | |
1167 | while (pipe (sigpipe)) |
|
|
1168 | syserr ("(libev) error creating pipe"); |
|
|
1169 | |
|
|
1170 | siginit (EV_A); |
1447 | evpipe_init (EV_A); |
|
|
1448 | /* now iterate over everything, in case we missed something */ |
1171 | sigcb (EV_A_ &sigev, EV_READ); |
1449 | pipecb (EV_A_ &pipeev, EV_READ); |
1172 | } |
1450 | } |
1173 | |
1451 | |
1174 | postfork = 0; |
1452 | postfork = 0; |
1175 | } |
1453 | } |
1176 | |
1454 | |
… | |
… | |
1198 | } |
1476 | } |
1199 | |
1477 | |
1200 | void |
1478 | void |
1201 | ev_loop_fork (EV_P) |
1479 | ev_loop_fork (EV_P) |
1202 | { |
1480 | { |
1203 | postfork = 1; // must be in line with ev_default_fork |
1481 | postfork = 1; /* must be in line with ev_default_fork */ |
1204 | } |
1482 | } |
1205 | |
|
|
1206 | #endif |
1483 | #endif |
1207 | |
1484 | |
1208 | #if EV_MULTIPLICITY |
1485 | #if EV_MULTIPLICITY |
1209 | struct ev_loop * |
1486 | struct ev_loop * |
1210 | ev_default_loop_init (unsigned int flags) |
1487 | ev_default_loop_init (unsigned int flags) |
1211 | #else |
1488 | #else |
1212 | int |
1489 | int |
1213 | ev_default_loop (unsigned int flags) |
1490 | ev_default_loop (unsigned int flags) |
1214 | #endif |
1491 | #endif |
1215 | { |
1492 | { |
1216 | if (sigpipe [0] == sigpipe [1]) |
|
|
1217 | if (pipe (sigpipe)) |
|
|
1218 | return 0; |
|
|
1219 | |
|
|
1220 | if (!ev_default_loop_ptr) |
1493 | if (!ev_default_loop_ptr) |
1221 | { |
1494 | { |
1222 | #if EV_MULTIPLICITY |
1495 | #if EV_MULTIPLICITY |
1223 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1496 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1224 | #else |
1497 | #else |
… | |
… | |
1227 | |
1500 | |
1228 | loop_init (EV_A_ flags); |
1501 | loop_init (EV_A_ flags); |
1229 | |
1502 | |
1230 | if (ev_backend (EV_A)) |
1503 | if (ev_backend (EV_A)) |
1231 | { |
1504 | { |
1232 | siginit (EV_A); |
|
|
1233 | |
|
|
1234 | #ifndef _WIN32 |
1505 | #ifndef _WIN32 |
1235 | ev_signal_init (&childev, childcb, SIGCHLD); |
1506 | ev_signal_init (&childev, childcb, SIGCHLD); |
1236 | ev_set_priority (&childev, EV_MAXPRI); |
1507 | ev_set_priority (&childev, EV_MAXPRI); |
1237 | ev_signal_start (EV_A_ &childev); |
1508 | ev_signal_start (EV_A_ &childev); |
1238 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1509 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1255 | #ifndef _WIN32 |
1526 | #ifndef _WIN32 |
1256 | ev_ref (EV_A); /* child watcher */ |
1527 | ev_ref (EV_A); /* child watcher */ |
1257 | ev_signal_stop (EV_A_ &childev); |
1528 | ev_signal_stop (EV_A_ &childev); |
1258 | #endif |
1529 | #endif |
1259 | |
1530 | |
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); |
1531 | loop_destroy (EV_A); |
1267 | } |
1532 | } |
1268 | |
1533 | |
1269 | void |
1534 | void |
1270 | ev_default_fork (void) |
1535 | ev_default_fork (void) |
… | |
… | |
1272 | #if EV_MULTIPLICITY |
1537 | #if EV_MULTIPLICITY |
1273 | struct ev_loop *loop = ev_default_loop_ptr; |
1538 | struct ev_loop *loop = ev_default_loop_ptr; |
1274 | #endif |
1539 | #endif |
1275 | |
1540 | |
1276 | if (backend) |
1541 | if (backend) |
1277 | postfork = 1; // must be in line with ev_loop_fork |
1542 | postfork = 1; /* must be in line with ev_loop_fork */ |
1278 | } |
1543 | } |
1279 | |
1544 | |
1280 | /*****************************************************************************/ |
1545 | /*****************************************************************************/ |
1281 | |
1546 | |
1282 | void |
1547 | void |
… | |
… | |
1302 | p->w->pending = 0; |
1567 | p->w->pending = 0; |
1303 | EV_CB_INVOKE (p->w, p->events); |
1568 | EV_CB_INVOKE (p->w, p->events); |
1304 | } |
1569 | } |
1305 | } |
1570 | } |
1306 | } |
1571 | } |
1307 | |
|
|
1308 | void inline_size |
|
|
1309 | timers_reify (EV_P) |
|
|
1310 | { |
|
|
1311 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1312 | { |
|
|
1313 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1314 | |
|
|
1315 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1316 | |
|
|
1317 | /* first reschedule or stop timer */ |
|
|
1318 | if (w->repeat) |
|
|
1319 | { |
|
|
1320 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1321 | |
|
|
1322 | ((WT)w)->at += w->repeat; |
|
|
1323 | if (((WT)w)->at < mn_now) |
|
|
1324 | ((WT)w)->at = mn_now; |
|
|
1325 | |
|
|
1326 | downheap (timers, timercnt, 0); |
|
|
1327 | } |
|
|
1328 | else |
|
|
1329 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1330 | |
|
|
1331 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1332 | } |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | #if EV_PERIODIC_ENABLE |
|
|
1336 | void inline_size |
|
|
1337 | periodics_reify (EV_P) |
|
|
1338 | { |
|
|
1339 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1340 | { |
|
|
1341 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1342 | |
|
|
1343 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1344 | |
|
|
1345 | /* first reschedule or stop timer */ |
|
|
1346 | if (w->reschedule_cb) |
|
|
1347 | { |
|
|
1348 | ((WT)w)->at = 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)); |
|
|
1350 | downheap (periodics, periodiccnt, 0); |
|
|
1351 | } |
|
|
1352 | else if (w->interval) |
|
|
1353 | { |
|
|
1354 | ((WT)w)->at = 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; |
|
|
1356 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1357 | downheap (periodics, periodiccnt, 0); |
|
|
1358 | } |
|
|
1359 | else |
|
|
1360 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1361 | |
|
|
1362 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1363 | } |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | static void noinline |
|
|
1367 | periodics_reschedule (EV_P) |
|
|
1368 | { |
|
|
1369 | int i; |
|
|
1370 | |
|
|
1371 | /* adjust periodics after time jump */ |
|
|
1372 | for (i = 0; i < periodiccnt; ++i) |
|
|
1373 | { |
|
|
1374 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1375 | |
|
|
1376 | if (w->reschedule_cb) |
|
|
1377 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1378 | else if (w->interval) |
|
|
1379 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | /* now rebuild the heap */ |
|
|
1383 | for (i = periodiccnt >> 1; i--; ) |
|
|
1384 | downheap (periodics, periodiccnt, i); |
|
|
1385 | } |
|
|
1386 | #endif |
|
|
1387 | |
1572 | |
1388 | #if EV_IDLE_ENABLE |
1573 | #if EV_IDLE_ENABLE |
1389 | void inline_size |
1574 | void inline_size |
1390 | idle_reify (EV_P) |
1575 | idle_reify (EV_P) |
1391 | { |
1576 | { |
… | |
… | |
1403 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1588 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1404 | break; |
1589 | break; |
1405 | } |
1590 | } |
1406 | } |
1591 | } |
1407 | } |
1592 | } |
|
|
1593 | } |
|
|
1594 | #endif |
|
|
1595 | |
|
|
1596 | void inline_size |
|
|
1597 | timers_reify (EV_P) |
|
|
1598 | { |
|
|
1599 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
|
|
1600 | { |
|
|
1601 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1602 | |
|
|
1603 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1604 | |
|
|
1605 | /* first reschedule or stop timer */ |
|
|
1606 | if (w->repeat) |
|
|
1607 | { |
|
|
1608 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1609 | |
|
|
1610 | ev_at (w) += w->repeat; |
|
|
1611 | if (ev_at (w) < mn_now) |
|
|
1612 | ev_at (w) = mn_now; |
|
|
1613 | |
|
|
1614 | downheap (timers, timercnt, HEAP0); |
|
|
1615 | } |
|
|
1616 | else |
|
|
1617 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1618 | |
|
|
1619 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1620 | } |
|
|
1621 | } |
|
|
1622 | |
|
|
1623 | #if EV_PERIODIC_ENABLE |
|
|
1624 | void inline_size |
|
|
1625 | periodics_reify (EV_P) |
|
|
1626 | { |
|
|
1627 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
|
|
1628 | { |
|
|
1629 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1630 | |
|
|
1631 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1632 | |
|
|
1633 | /* first reschedule or stop timer */ |
|
|
1634 | if (w->reschedule_cb) |
|
|
1635 | { |
|
|
1636 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1637 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1638 | downheap (periodics, periodiccnt, 1); |
|
|
1639 | } |
|
|
1640 | else if (w->interval) |
|
|
1641 | { |
|
|
1642 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1643 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1644 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1645 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1646 | } |
|
|
1647 | else |
|
|
1648 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1649 | |
|
|
1650 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1651 | } |
|
|
1652 | } |
|
|
1653 | |
|
|
1654 | static void noinline |
|
|
1655 | periodics_reschedule (EV_P) |
|
|
1656 | { |
|
|
1657 | int i; |
|
|
1658 | |
|
|
1659 | /* adjust periodics after time jump */ |
|
|
1660 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1661 | { |
|
|
1662 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1663 | |
|
|
1664 | if (w->reschedule_cb) |
|
|
1665 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1666 | else if (w->interval) |
|
|
1667 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1668 | } |
|
|
1669 | |
|
|
1670 | /* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */ |
|
|
1671 | for (i = periodiccnt >> 1; --i; ) |
|
|
1672 | downheap (periodics, periodiccnt, i + HEAP0); |
1408 | } |
1673 | } |
1409 | #endif |
1674 | #endif |
1410 | |
1675 | |
1411 | void inline_speed |
1676 | void inline_speed |
1412 | time_update (EV_P_ ev_tstamp max_block) |
1677 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1441 | */ |
1706 | */ |
1442 | for (i = 4; --i; ) |
1707 | for (i = 4; --i; ) |
1443 | { |
1708 | { |
1444 | rtmn_diff = ev_rt_now - mn_now; |
1709 | rtmn_diff = ev_rt_now - mn_now; |
1445 | |
1710 | |
1446 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1711 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1447 | return; /* all is well */ |
1712 | return; /* all is well */ |
1448 | |
1713 | |
1449 | ev_rt_now = ev_time (); |
1714 | ev_rt_now = ev_time (); |
1450 | mn_now = get_clock (); |
1715 | mn_now = get_clock (); |
1451 | now_floor = mn_now; |
1716 | now_floor = mn_now; |
… | |
… | |
1467 | #if EV_PERIODIC_ENABLE |
1732 | #if EV_PERIODIC_ENABLE |
1468 | periodics_reschedule (EV_A); |
1733 | periodics_reschedule (EV_A); |
1469 | #endif |
1734 | #endif |
1470 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1735 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1471 | for (i = 0; i < timercnt; ++i) |
1736 | for (i = 0; i < timercnt; ++i) |
|
|
1737 | { |
|
|
1738 | ANHE *he = timers + i + HEAP0; |
1472 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1739 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1740 | ANHE_at_set (*he); |
|
|
1741 | } |
1473 | } |
1742 | } |
1474 | |
1743 | |
1475 | mn_now = ev_rt_now; |
1744 | mn_now = ev_rt_now; |
1476 | } |
1745 | } |
1477 | } |
1746 | } |
… | |
… | |
1491 | static int loop_done; |
1760 | static int loop_done; |
1492 | |
1761 | |
1493 | void |
1762 | void |
1494 | ev_loop (EV_P_ int flags) |
1763 | ev_loop (EV_P_ int flags) |
1495 | { |
1764 | { |
1496 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1765 | loop_done = EVUNLOOP_CANCEL; |
1497 | ? EVUNLOOP_ONE |
|
|
1498 | : EVUNLOOP_CANCEL; |
|
|
1499 | |
1766 | |
1500 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1767 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1501 | |
1768 | |
1502 | do |
1769 | do |
1503 | { |
1770 | { |
… | |
… | |
1549 | |
1816 | |
1550 | waittime = MAX_BLOCKTIME; |
1817 | waittime = MAX_BLOCKTIME; |
1551 | |
1818 | |
1552 | if (timercnt) |
1819 | if (timercnt) |
1553 | { |
1820 | { |
1554 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1821 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1555 | if (waittime > to) waittime = to; |
1822 | if (waittime > to) waittime = to; |
1556 | } |
1823 | } |
1557 | |
1824 | |
1558 | #if EV_PERIODIC_ENABLE |
1825 | #if EV_PERIODIC_ENABLE |
1559 | if (periodiccnt) |
1826 | if (periodiccnt) |
1560 | { |
1827 | { |
1561 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1828 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1562 | if (waittime > to) waittime = to; |
1829 | if (waittime > to) waittime = to; |
1563 | } |
1830 | } |
1564 | #endif |
1831 | #endif |
1565 | |
1832 | |
1566 | if (expect_false (waittime < timeout_blocktime)) |
1833 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1599 | /* queue check watchers, to be executed first */ |
1866 | /* queue check watchers, to be executed first */ |
1600 | if (expect_false (checkcnt)) |
1867 | if (expect_false (checkcnt)) |
1601 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1868 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1602 | |
1869 | |
1603 | call_pending (EV_A); |
1870 | call_pending (EV_A); |
1604 | |
|
|
1605 | } |
1871 | } |
1606 | while (expect_true (activecnt && !loop_done)); |
1872 | while (expect_true ( |
|
|
1873 | activecnt |
|
|
1874 | && !loop_done |
|
|
1875 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1876 | )); |
1607 | |
1877 | |
1608 | if (loop_done == EVUNLOOP_ONE) |
1878 | if (loop_done == EVUNLOOP_ONE) |
1609 | loop_done = EVUNLOOP_CANCEL; |
1879 | loop_done = EVUNLOOP_CANCEL; |
1610 | } |
1880 | } |
1611 | |
1881 | |
… | |
… | |
1729 | ev_timer_start (EV_P_ ev_timer *w) |
1999 | ev_timer_start (EV_P_ ev_timer *w) |
1730 | { |
2000 | { |
1731 | if (expect_false (ev_is_active (w))) |
2001 | if (expect_false (ev_is_active (w))) |
1732 | return; |
2002 | return; |
1733 | |
2003 | |
1734 | ((WT)w)->at += mn_now; |
2004 | ev_at (w) += mn_now; |
1735 | |
2005 | |
1736 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2006 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1737 | |
2007 | |
1738 | ev_start (EV_A_ (W)w, ++timercnt); |
2008 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1739 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2009 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1740 | timers [timercnt - 1] = (WT)w; |
2010 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1741 | upheap (timers, timercnt - 1); |
2011 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2012 | upheap (timers, ev_active (w)); |
1742 | |
2013 | |
1743 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2014 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
1744 | } |
2015 | } |
1745 | |
2016 | |
1746 | void noinline |
2017 | void noinline |
1747 | ev_timer_stop (EV_P_ ev_timer *w) |
2018 | ev_timer_stop (EV_P_ ev_timer *w) |
1748 | { |
2019 | { |
1749 | clear_pending (EV_A_ (W)w); |
2020 | clear_pending (EV_A_ (W)w); |
1750 | if (expect_false (!ev_is_active (w))) |
2021 | if (expect_false (!ev_is_active (w))) |
1751 | return; |
2022 | return; |
1752 | |
2023 | |
1753 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1754 | |
|
|
1755 | { |
2024 | { |
1756 | int active = ((W)w)->active; |
2025 | int active = ev_active (w); |
1757 | |
2026 | |
|
|
2027 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2028 | |
1758 | if (expect_true (--active < --timercnt)) |
2029 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1759 | { |
2030 | { |
1760 | timers [active] = timers [timercnt]; |
2031 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1761 | adjustheap (timers, timercnt, active); |
2032 | adjustheap (timers, timercnt, active); |
1762 | } |
2033 | } |
|
|
2034 | |
|
|
2035 | --timercnt; |
1763 | } |
2036 | } |
1764 | |
2037 | |
1765 | ((WT)w)->at -= mn_now; |
2038 | ev_at (w) -= mn_now; |
1766 | |
2039 | |
1767 | ev_stop (EV_A_ (W)w); |
2040 | ev_stop (EV_A_ (W)w); |
1768 | } |
2041 | } |
1769 | |
2042 | |
1770 | void noinline |
2043 | void noinline |
… | |
… | |
1772 | { |
2045 | { |
1773 | if (ev_is_active (w)) |
2046 | if (ev_is_active (w)) |
1774 | { |
2047 | { |
1775 | if (w->repeat) |
2048 | if (w->repeat) |
1776 | { |
2049 | { |
1777 | ((WT)w)->at = mn_now + w->repeat; |
2050 | ev_at (w) = mn_now + w->repeat; |
|
|
2051 | ANHE_at_set (timers [ev_active (w)]); |
1778 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2052 | adjustheap (timers, timercnt, ev_active (w)); |
1779 | } |
2053 | } |
1780 | else |
2054 | else |
1781 | ev_timer_stop (EV_A_ w); |
2055 | ev_timer_stop (EV_A_ w); |
1782 | } |
2056 | } |
1783 | else if (w->repeat) |
2057 | else if (w->repeat) |
1784 | { |
2058 | { |
1785 | w->at = w->repeat; |
2059 | ev_at (w) = w->repeat; |
1786 | ev_timer_start (EV_A_ w); |
2060 | ev_timer_start (EV_A_ w); |
1787 | } |
2061 | } |
1788 | } |
2062 | } |
1789 | |
2063 | |
1790 | #if EV_PERIODIC_ENABLE |
2064 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1793 | { |
2067 | { |
1794 | if (expect_false (ev_is_active (w))) |
2068 | if (expect_false (ev_is_active (w))) |
1795 | return; |
2069 | return; |
1796 | |
2070 | |
1797 | if (w->reschedule_cb) |
2071 | if (w->reschedule_cb) |
1798 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2072 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1799 | else if (w->interval) |
2073 | else if (w->interval) |
1800 | { |
2074 | { |
1801 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2075 | 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 */ |
2076 | /* 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; |
2077 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1804 | } |
2078 | } |
1805 | else |
2079 | else |
1806 | ((WT)w)->at = w->offset; |
2080 | ev_at (w) = w->offset; |
1807 | |
2081 | |
1808 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2082 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1809 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2083 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1810 | periodics [periodiccnt - 1] = (WT)w; |
2084 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1811 | upheap (periodics, periodiccnt - 1); |
2085 | upheap (periodics, ev_active (w)); |
1812 | |
2086 | |
1813 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2087 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1814 | } |
2088 | } |
1815 | |
2089 | |
1816 | void noinline |
2090 | void noinline |
1817 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2091 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1818 | { |
2092 | { |
1819 | clear_pending (EV_A_ (W)w); |
2093 | clear_pending (EV_A_ (W)w); |
1820 | if (expect_false (!ev_is_active (w))) |
2094 | if (expect_false (!ev_is_active (w))) |
1821 | return; |
2095 | return; |
1822 | |
2096 | |
1823 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1824 | |
|
|
1825 | { |
2097 | { |
1826 | int active = ((W)w)->active; |
2098 | int active = ev_active (w); |
1827 | |
2099 | |
|
|
2100 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2101 | |
1828 | if (expect_true (--active < --periodiccnt)) |
2102 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1829 | { |
2103 | { |
1830 | periodics [active] = periodics [periodiccnt]; |
2104 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1831 | adjustheap (periodics, periodiccnt, active); |
2105 | adjustheap (periodics, periodiccnt, active); |
1832 | } |
2106 | } |
|
|
2107 | |
|
|
2108 | --periodiccnt; |
1833 | } |
2109 | } |
1834 | |
2110 | |
1835 | ev_stop (EV_A_ (W)w); |
2111 | ev_stop (EV_A_ (W)w); |
1836 | } |
2112 | } |
1837 | |
2113 | |
… | |
… | |
1856 | #endif |
2132 | #endif |
1857 | if (expect_false (ev_is_active (w))) |
2133 | if (expect_false (ev_is_active (w))) |
1858 | return; |
2134 | return; |
1859 | |
2135 | |
1860 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2136 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2137 | |
|
|
2138 | evpipe_init (EV_A); |
1861 | |
2139 | |
1862 | { |
2140 | { |
1863 | #ifndef _WIN32 |
2141 | #ifndef _WIN32 |
1864 | sigset_t full, prev; |
2142 | sigset_t full, prev; |
1865 | sigfillset (&full); |
2143 | sigfillset (&full); |
… | |
… | |
1877 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2155 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1878 | |
2156 | |
1879 | if (!((WL)w)->next) |
2157 | if (!((WL)w)->next) |
1880 | { |
2158 | { |
1881 | #if _WIN32 |
2159 | #if _WIN32 |
1882 | signal (w->signum, sighandler); |
2160 | signal (w->signum, ev_sighandler); |
1883 | #else |
2161 | #else |
1884 | struct sigaction sa; |
2162 | struct sigaction sa; |
1885 | sa.sa_handler = sighandler; |
2163 | sa.sa_handler = ev_sighandler; |
1886 | sigfillset (&sa.sa_mask); |
2164 | sigfillset (&sa.sa_mask); |
1887 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2165 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1888 | sigaction (w->signum, &sa, 0); |
2166 | sigaction (w->signum, &sa, 0); |
1889 | #endif |
2167 | #endif |
1890 | } |
2168 | } |
… | |
… | |
1951 | if (w->wd < 0) |
2229 | if (w->wd < 0) |
1952 | { |
2230 | { |
1953 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2231 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1954 | |
2232 | |
1955 | /* monitor some parent directory for speedup hints */ |
2233 | /* monitor some parent directory for speedup hints */ |
|
|
2234 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2235 | /* but an efficiency issue only */ |
1956 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2236 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1957 | { |
2237 | { |
1958 | char path [4096]; |
2238 | char path [4096]; |
1959 | strcpy (path, w->path); |
2239 | strcpy (path, w->path); |
1960 | |
2240 | |
… | |
… | |
2205 | clear_pending (EV_A_ (W)w); |
2485 | clear_pending (EV_A_ (W)w); |
2206 | if (expect_false (!ev_is_active (w))) |
2486 | if (expect_false (!ev_is_active (w))) |
2207 | return; |
2487 | return; |
2208 | |
2488 | |
2209 | { |
2489 | { |
2210 | int active = ((W)w)->active; |
2490 | int active = ev_active (w); |
2211 | |
2491 | |
2212 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2492 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2213 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2493 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2214 | |
2494 | |
2215 | ev_stop (EV_A_ (W)w); |
2495 | ev_stop (EV_A_ (W)w); |
2216 | --idleall; |
2496 | --idleall; |
2217 | } |
2497 | } |
2218 | } |
2498 | } |
… | |
… | |
2235 | clear_pending (EV_A_ (W)w); |
2515 | clear_pending (EV_A_ (W)w); |
2236 | if (expect_false (!ev_is_active (w))) |
2516 | if (expect_false (!ev_is_active (w))) |
2237 | return; |
2517 | return; |
2238 | |
2518 | |
2239 | { |
2519 | { |
2240 | int active = ((W)w)->active; |
2520 | int active = ev_active (w); |
|
|
2521 | |
2241 | prepares [active - 1] = prepares [--preparecnt]; |
2522 | prepares [active - 1] = prepares [--preparecnt]; |
2242 | ((W)prepares [active - 1])->active = active; |
2523 | ev_active (prepares [active - 1]) = active; |
2243 | } |
2524 | } |
2244 | |
2525 | |
2245 | ev_stop (EV_A_ (W)w); |
2526 | ev_stop (EV_A_ (W)w); |
2246 | } |
2527 | } |
2247 | |
2528 | |
… | |
… | |
2262 | clear_pending (EV_A_ (W)w); |
2543 | clear_pending (EV_A_ (W)w); |
2263 | if (expect_false (!ev_is_active (w))) |
2544 | if (expect_false (!ev_is_active (w))) |
2264 | return; |
2545 | return; |
2265 | |
2546 | |
2266 | { |
2547 | { |
2267 | int active = ((W)w)->active; |
2548 | int active = ev_active (w); |
|
|
2549 | |
2268 | checks [active - 1] = checks [--checkcnt]; |
2550 | checks [active - 1] = checks [--checkcnt]; |
2269 | ((W)checks [active - 1])->active = active; |
2551 | ev_active (checks [active - 1]) = active; |
2270 | } |
2552 | } |
2271 | |
2553 | |
2272 | ev_stop (EV_A_ (W)w); |
2554 | ev_stop (EV_A_ (W)w); |
2273 | } |
2555 | } |
2274 | |
2556 | |
… | |
… | |
2370 | clear_pending (EV_A_ (W)w); |
2652 | clear_pending (EV_A_ (W)w); |
2371 | if (expect_false (!ev_is_active (w))) |
2653 | if (expect_false (!ev_is_active (w))) |
2372 | return; |
2654 | return; |
2373 | |
2655 | |
2374 | { |
2656 | { |
2375 | int active = ((W)w)->active; |
2657 | int active = ev_active (w); |
|
|
2658 | |
2376 | forks [active - 1] = forks [--forkcnt]; |
2659 | forks [active - 1] = forks [--forkcnt]; |
2377 | ((W)forks [active - 1])->active = active; |
2660 | ev_active (forks [active - 1]) = active; |
2378 | } |
2661 | } |
2379 | |
2662 | |
2380 | ev_stop (EV_A_ (W)w); |
2663 | ev_stop (EV_A_ (W)w); |
|
|
2664 | } |
|
|
2665 | #endif |
|
|
2666 | |
|
|
2667 | #if EV_ASYNC_ENABLE |
|
|
2668 | void |
|
|
2669 | ev_async_start (EV_P_ ev_async *w) |
|
|
2670 | { |
|
|
2671 | if (expect_false (ev_is_active (w))) |
|
|
2672 | return; |
|
|
2673 | |
|
|
2674 | evpipe_init (EV_A); |
|
|
2675 | |
|
|
2676 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2677 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2678 | asyncs [asynccnt - 1] = w; |
|
|
2679 | } |
|
|
2680 | |
|
|
2681 | void |
|
|
2682 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2683 | { |
|
|
2684 | clear_pending (EV_A_ (W)w); |
|
|
2685 | if (expect_false (!ev_is_active (w))) |
|
|
2686 | return; |
|
|
2687 | |
|
|
2688 | { |
|
|
2689 | int active = ev_active (w); |
|
|
2690 | |
|
|
2691 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2692 | ev_active (asyncs [active - 1]) = active; |
|
|
2693 | } |
|
|
2694 | |
|
|
2695 | ev_stop (EV_A_ (W)w); |
|
|
2696 | } |
|
|
2697 | |
|
|
2698 | void |
|
|
2699 | ev_async_send (EV_P_ ev_async *w) |
|
|
2700 | { |
|
|
2701 | w->sent = 1; |
|
|
2702 | evpipe_write (EV_A_ &gotasync); |
2381 | } |
2703 | } |
2382 | #endif |
2704 | #endif |
2383 | |
2705 | |
2384 | /*****************************************************************************/ |
2706 | /*****************************************************************************/ |
2385 | |
2707 | |