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 | #ifndef EV_USE_4HEAP |
|
|
241 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
242 | #endif |
|
|
243 | |
|
|
244 | #ifndef EV_HEAP_CACHE_AT |
|
|
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
246 | #endif |
|
|
247 | |
|
|
248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
216 | |
249 | |
217 | #ifndef CLOCK_MONOTONIC |
250 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
251 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
252 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
253 | #endif |
… | |
… | |
239 | # include <sys/inotify.h> |
272 | # include <sys/inotify.h> |
240 | #endif |
273 | #endif |
241 | |
274 | |
242 | #if EV_SELECT_IS_WINSOCKET |
275 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
276 | # include <winsock.h> |
|
|
277 | #endif |
|
|
278 | |
|
|
279 | #if EV_USE_EVENTFD |
|
|
280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
281 | # include <stdint.h> |
|
|
282 | # ifdef __cplusplus |
|
|
283 | extern "C" { |
|
|
284 | # endif |
|
|
285 | int eventfd (unsigned int initval, int flags); |
|
|
286 | # ifdef __cplusplus |
|
|
287 | } |
|
|
288 | # endif |
244 | #endif |
289 | #endif |
245 | |
290 | |
246 | /**/ |
291 | /**/ |
247 | |
292 | |
248 | /* |
293 | /* |
… | |
… | |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
308 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
264 | # define noinline __attribute__ ((noinline)) |
309 | # define noinline __attribute__ ((noinline)) |
265 | #else |
310 | #else |
266 | # define expect(expr,value) (expr) |
311 | # define expect(expr,value) (expr) |
267 | # define noinline |
312 | # define noinline |
268 | # if __STDC_VERSION__ < 199901L |
313 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
269 | # define inline |
314 | # define inline |
270 | # endif |
315 | # endif |
271 | #endif |
316 | #endif |
272 | |
317 | |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
318 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
288 | |
333 | |
289 | typedef ev_watcher *W; |
334 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
335 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
336 | typedef ev_watcher_time *WT; |
292 | |
337 | |
|
|
338 | #define ev_active(w) ((W)(w))->active |
|
|
339 | #define ev_at(w) ((WT)(w))->at |
|
|
340 | |
293 | #if EV_USE_MONOTONIC |
341 | #if EV_USE_MONOTONIC |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
342 | /* 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 */ |
343 | /* giving it a reasonably high chance of working on typical architetcures */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
344 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
297 | #endif |
345 | #endif |
298 | |
346 | |
299 | #ifdef _WIN32 |
347 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
348 | # include "ev_win32.c" |
301 | #endif |
349 | #endif |
… | |
… | |
323 | perror (msg); |
371 | perror (msg); |
324 | abort (); |
372 | abort (); |
325 | } |
373 | } |
326 | } |
374 | } |
327 | |
375 | |
|
|
376 | static void * |
|
|
377 | ev_realloc_emul (void *ptr, long size) |
|
|
378 | { |
|
|
379 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
380 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
381 | * the single unix specification, so work around them here. |
|
|
382 | */ |
|
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383 | |
|
|
384 | if (size) |
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385 | return realloc (ptr, size); |
|
|
386 | |
|
|
387 | free (ptr); |
|
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388 | return 0; |
|
|
389 | } |
|
|
390 | |
328 | static void *(*alloc)(void *ptr, long size); |
391 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
392 | |
330 | void |
393 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
394 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
395 | { |
333 | alloc = cb; |
396 | alloc = cb; |
334 | } |
397 | } |
335 | |
398 | |
336 | inline_speed void * |
399 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
400 | ev_realloc (void *ptr, long size) |
338 | { |
401 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
402 | ptr = alloc (ptr, size); |
340 | |
403 | |
341 | if (!ptr && size) |
404 | if (!ptr && size) |
342 | { |
405 | { |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
406 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
344 | abort (); |
407 | abort (); |
… | |
… | |
367 | W w; |
430 | W w; |
368 | int events; |
431 | int events; |
369 | } ANPENDING; |
432 | } ANPENDING; |
370 | |
433 | |
371 | #if EV_USE_INOTIFY |
434 | #if EV_USE_INOTIFY |
|
|
435 | /* hash table entry per inotify-id */ |
372 | typedef struct |
436 | typedef struct |
373 | { |
437 | { |
374 | WL head; |
438 | WL head; |
375 | } ANFS; |
439 | } ANFS; |
|
|
440 | #endif |
|
|
441 | |
|
|
442 | /* Heap Entry */ |
|
|
443 | #if EV_HEAP_CACHE_AT |
|
|
444 | typedef struct { |
|
|
445 | ev_tstamp at; |
|
|
446 | WT w; |
|
|
447 | } ANHE; |
|
|
448 | |
|
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449 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
450 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
451 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
452 | #else |
|
|
453 | typedef WT ANHE; |
|
|
454 | |
|
|
455 | #define ANHE_w(he) (he) |
|
|
456 | #define ANHE_at(he) (he)->at |
|
|
457 | #define ANHE_at_set(he) |
376 | #endif |
458 | #endif |
377 | |
459 | |
378 | #if EV_MULTIPLICITY |
460 | #if EV_MULTIPLICITY |
379 | |
461 | |
380 | struct ev_loop |
462 | struct ev_loop |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
533 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
534 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
535 | |
454 | nanosleep (&ts, 0); |
536 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
537 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
538 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
539 | #else |
458 | struct timeval tv; |
540 | struct timeval tv; |
459 | |
541 | |
460 | tv.tv_sec = (time_t)delay; |
542 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
543 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
… | |
… | |
464 | #endif |
546 | #endif |
465 | } |
547 | } |
466 | } |
548 | } |
467 | |
549 | |
468 | /*****************************************************************************/ |
550 | /*****************************************************************************/ |
|
|
551 | |
|
|
552 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
469 | |
553 | |
470 | int inline_size |
554 | int inline_size |
471 | array_nextsize (int elem, int cur, int cnt) |
555 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
556 | { |
473 | int ncur = cur + 1; |
557 | int ncur = cur + 1; |
474 | |
558 | |
475 | do |
559 | do |
476 | ncur <<= 1; |
560 | ncur <<= 1; |
477 | while (cnt > ncur); |
561 | while (cnt > ncur); |
478 | |
562 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
563 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
564 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
565 | { |
482 | ncur *= elem; |
566 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
567 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
568 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
569 | ncur /= elem; |
486 | } |
570 | } |
487 | |
571 | |
488 | return ncur; |
572 | return ncur; |
… | |
… | |
600 | |
684 | |
601 | #if EV_SELECT_IS_WINSOCKET |
685 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
686 | if (events) |
603 | { |
687 | { |
604 | unsigned long argp; |
688 | unsigned long argp; |
|
|
689 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
690 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
691 | #else |
605 | anfd->handle = _get_osfhandle (fd); |
692 | anfd->handle = _get_osfhandle (fd); |
|
|
693 | #endif |
606 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
694 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
607 | } |
695 | } |
608 | #endif |
696 | #endif |
609 | |
697 | |
610 | { |
698 | { |
… | |
… | |
698 | } |
786 | } |
699 | } |
787 | } |
700 | |
788 | |
701 | /*****************************************************************************/ |
789 | /*****************************************************************************/ |
702 | |
790 | |
|
|
791 | /* |
|
|
792 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
793 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
794 | * the branching factor of the d-tree. |
|
|
795 | */ |
|
|
796 | |
|
|
797 | /* |
|
|
798 | * at the moment we allow libev the luxury of two heaps, |
|
|
799 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
800 | * which is more cache-efficient. |
|
|
801 | * the difference is about 5% with 50000+ watchers. |
|
|
802 | */ |
|
|
803 | #if EV_USE_4HEAP |
|
|
804 | |
|
|
805 | #define DHEAP 4 |
|
|
806 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
807 | |
|
|
808 | /* towards the root */ |
703 | void inline_speed |
809 | void inline_speed |
704 | upheap (WT *heap, int k) |
810 | upheap (ANHE *heap, int k) |
705 | { |
811 | { |
706 | WT w = heap [k]; |
812 | ANHE he = heap [k]; |
707 | |
813 | |
708 | while (k) |
814 | for (;;) |
709 | { |
815 | { |
710 | int p = (k - 1) >> 1; |
816 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
711 | |
817 | |
712 | if (heap [p]->at <= w->at) |
818 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
713 | break; |
819 | break; |
714 | |
820 | |
715 | heap [k] = heap [p]; |
821 | heap [k] = heap [p]; |
716 | ((W)heap [k])->active = k + 1; |
822 | ev_active (ANHE_w (heap [k])) = k; |
717 | k = p; |
823 | k = p; |
718 | } |
824 | } |
719 | |
825 | |
|
|
826 | ev_active (ANHE_w (he)) = k; |
720 | heap [k] = w; |
827 | heap [k] = he; |
721 | ((W)heap [k])->active = k + 1; |
|
|
722 | } |
828 | } |
723 | |
829 | |
|
|
830 | /* away from the root */ |
724 | void inline_speed |
831 | void inline_speed |
725 | downheap (WT *heap, int N, int k) |
832 | downheap (ANHE *heap, int N, int k) |
726 | { |
833 | { |
727 | WT w = heap [k]; |
834 | ANHE he = heap [k]; |
|
|
835 | ANHE *E = heap + N + HEAP0; |
728 | |
836 | |
729 | for (;;) |
837 | for (;;) |
730 | { |
838 | { |
731 | int c = (k << 1) + 1; |
839 | ev_tstamp minat; |
|
|
840 | ANHE *minpos; |
|
|
841 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
732 | |
842 | |
733 | if (c >= N) |
843 | // find minimum child |
|
|
844 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
845 | { |
|
|
846 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
847 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
848 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
849 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
850 | } |
|
|
851 | else if (pos < E) |
|
|
852 | { |
|
|
853 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
854 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
855 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
856 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
857 | } |
|
|
858 | else |
734 | break; |
859 | break; |
735 | |
860 | |
|
|
861 | if (ANHE_at (he) <= minat) |
|
|
862 | break; |
|
|
863 | |
|
|
864 | ev_active (ANHE_w (*minpos)) = k; |
|
|
865 | heap [k] = *minpos; |
|
|
866 | |
|
|
867 | k = minpos - heap; |
|
|
868 | } |
|
|
869 | |
|
|
870 | ev_active (ANHE_w (he)) = k; |
|
|
871 | heap [k] = he; |
|
|
872 | } |
|
|
873 | |
|
|
874 | #else // 4HEAP |
|
|
875 | |
|
|
876 | #define HEAP0 1 |
|
|
877 | |
|
|
878 | /* towards the root */ |
|
|
879 | void inline_speed |
|
|
880 | upheap (ANHE *heap, int k) |
|
|
881 | { |
|
|
882 | ANHE he = heap [k]; |
|
|
883 | |
|
|
884 | for (;;) |
|
|
885 | { |
|
|
886 | int p = k >> 1; |
|
|
887 | |
|
|
888 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
889 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
890 | break; |
|
|
891 | |
|
|
892 | heap [k] = heap [p]; |
|
|
893 | ev_active (ANHE_w (heap [k])) = k; |
|
|
894 | k = p; |
|
|
895 | } |
|
|
896 | |
|
|
897 | heap [k] = he; |
|
|
898 | ev_active (ANHE_w (heap [k])) = k; |
|
|
899 | } |
|
|
900 | |
|
|
901 | /* away from the root */ |
|
|
902 | void inline_speed |
|
|
903 | downheap (ANHE *heap, int N, int k) |
|
|
904 | { |
|
|
905 | ANHE he = heap [k]; |
|
|
906 | |
|
|
907 | for (;;) |
|
|
908 | { |
|
|
909 | int c = k << 1; |
|
|
910 | |
|
|
911 | if (c > N) |
|
|
912 | break; |
|
|
913 | |
736 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
914 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
737 | ? 1 : 0; |
915 | ? 1 : 0; |
738 | |
916 | |
739 | if (w->at <= heap [c]->at) |
917 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
740 | break; |
918 | break; |
741 | |
919 | |
742 | heap [k] = heap [c]; |
920 | heap [k] = heap [c]; |
743 | ((W)heap [k])->active = k + 1; |
921 | ev_active (ANHE_w (heap [k])) = k; |
744 | |
922 | |
745 | k = c; |
923 | k = c; |
746 | } |
924 | } |
747 | |
925 | |
748 | heap [k] = w; |
926 | heap [k] = he; |
749 | ((W)heap [k])->active = k + 1; |
927 | ev_active (ANHE_w (he)) = k; |
750 | } |
928 | } |
|
|
929 | #endif |
751 | |
930 | |
752 | void inline_size |
931 | void inline_size |
753 | adjustheap (WT *heap, int N, int k) |
932 | adjustheap (ANHE *heap, int N, int k) |
754 | { |
933 | { |
755 | upheap (heap, k); |
934 | upheap (heap, k); |
756 | downheap (heap, N, k); |
935 | downheap (heap, N, k); |
757 | } |
936 | } |
758 | |
937 | |
759 | /*****************************************************************************/ |
938 | /*****************************************************************************/ |
760 | |
939 | |
761 | typedef struct |
940 | typedef struct |
762 | { |
941 | { |
763 | WL head; |
942 | WL head; |
764 | sig_atomic_t volatile gotsig; |
943 | EV_ATOMIC_T gotsig; |
765 | } ANSIG; |
944 | } ANSIG; |
766 | |
945 | |
767 | static ANSIG *signals; |
946 | static ANSIG *signals; |
768 | static int signalmax; |
947 | static int signalmax; |
769 | |
948 | |
770 | static int sigpipe [2]; |
949 | static EV_ATOMIC_T gotsig; |
771 | static sig_atomic_t volatile gotsig; |
|
|
772 | static ev_io sigev; |
|
|
773 | |
950 | |
774 | void inline_size |
951 | void inline_size |
775 | signals_init (ANSIG *base, int count) |
952 | signals_init (ANSIG *base, int count) |
776 | { |
953 | { |
777 | while (count--) |
954 | while (count--) |
… | |
… | |
781 | |
958 | |
782 | ++base; |
959 | ++base; |
783 | } |
960 | } |
784 | } |
961 | } |
785 | |
962 | |
786 | static void |
963 | /*****************************************************************************/ |
787 | sighandler (int signum) |
|
|
788 | { |
|
|
789 | #if _WIN32 |
|
|
790 | signal (signum, sighandler); |
|
|
791 | #endif |
|
|
792 | |
|
|
793 | signals [signum - 1].gotsig = 1; |
|
|
794 | |
|
|
795 | if (!gotsig) |
|
|
796 | { |
|
|
797 | int old_errno = errno; |
|
|
798 | gotsig = 1; |
|
|
799 | write (sigpipe [1], &signum, 1); |
|
|
800 | errno = old_errno; |
|
|
801 | } |
|
|
802 | } |
|
|
803 | |
|
|
804 | void noinline |
|
|
805 | ev_feed_signal_event (EV_P_ int signum) |
|
|
806 | { |
|
|
807 | WL w; |
|
|
808 | |
|
|
809 | #if EV_MULTIPLICITY |
|
|
810 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | --signum; |
|
|
814 | |
|
|
815 | if (signum < 0 || signum >= signalmax) |
|
|
816 | return; |
|
|
817 | |
|
|
818 | signals [signum].gotsig = 0; |
|
|
819 | |
|
|
820 | for (w = signals [signum].head; w; w = w->next) |
|
|
821 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
822 | } |
|
|
823 | |
|
|
824 | static void |
|
|
825 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
826 | { |
|
|
827 | int signum; |
|
|
828 | |
|
|
829 | read (sigpipe [0], &revents, 1); |
|
|
830 | gotsig = 0; |
|
|
831 | |
|
|
832 | for (signum = signalmax; signum--; ) |
|
|
833 | if (signals [signum].gotsig) |
|
|
834 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
835 | } |
|
|
836 | |
964 | |
837 | void inline_speed |
965 | void inline_speed |
838 | fd_intern (int fd) |
966 | fd_intern (int fd) |
839 | { |
967 | { |
840 | #ifdef _WIN32 |
968 | #ifdef _WIN32 |
… | |
… | |
845 | fcntl (fd, F_SETFL, O_NONBLOCK); |
973 | fcntl (fd, F_SETFL, O_NONBLOCK); |
846 | #endif |
974 | #endif |
847 | } |
975 | } |
848 | |
976 | |
849 | static void noinline |
977 | static void noinline |
850 | siginit (EV_P) |
978 | evpipe_init (EV_P) |
851 | { |
979 | { |
|
|
980 | if (!ev_is_active (&pipeev)) |
|
|
981 | { |
|
|
982 | #if EV_USE_EVENTFD |
|
|
983 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
984 | { |
|
|
985 | evpipe [0] = -1; |
|
|
986 | fd_intern (evfd); |
|
|
987 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
988 | } |
|
|
989 | else |
|
|
990 | #endif |
|
|
991 | { |
|
|
992 | while (pipe (evpipe)) |
|
|
993 | syserr ("(libev) error creating signal/async pipe"); |
|
|
994 | |
852 | fd_intern (sigpipe [0]); |
995 | fd_intern (evpipe [0]); |
853 | fd_intern (sigpipe [1]); |
996 | fd_intern (evpipe [1]); |
|
|
997 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
998 | } |
854 | |
999 | |
855 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
856 | ev_io_start (EV_A_ &sigev); |
1000 | ev_io_start (EV_A_ &pipeev); |
857 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1001 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1002 | } |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | void inline_size |
|
|
1006 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1007 | { |
|
|
1008 | if (!*flag) |
|
|
1009 | { |
|
|
1010 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1011 | |
|
|
1012 | *flag = 1; |
|
|
1013 | |
|
|
1014 | #if EV_USE_EVENTFD |
|
|
1015 | if (evfd >= 0) |
|
|
1016 | { |
|
|
1017 | uint64_t counter = 1; |
|
|
1018 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1019 | } |
|
|
1020 | else |
|
|
1021 | #endif |
|
|
1022 | write (evpipe [1], &old_errno, 1); |
|
|
1023 | |
|
|
1024 | errno = old_errno; |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | static void |
|
|
1029 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1030 | { |
|
|
1031 | #if EV_USE_EVENTFD |
|
|
1032 | if (evfd >= 0) |
|
|
1033 | { |
|
|
1034 | uint64_t counter; |
|
|
1035 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1036 | } |
|
|
1037 | else |
|
|
1038 | #endif |
|
|
1039 | { |
|
|
1040 | char dummy; |
|
|
1041 | read (evpipe [0], &dummy, 1); |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1045 | { |
|
|
1046 | int signum; |
|
|
1047 | gotsig = 0; |
|
|
1048 | |
|
|
1049 | for (signum = signalmax; signum--; ) |
|
|
1050 | if (signals [signum].gotsig) |
|
|
1051 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | #if EV_ASYNC_ENABLE |
|
|
1055 | if (gotasync) |
|
|
1056 | { |
|
|
1057 | int i; |
|
|
1058 | gotasync = 0; |
|
|
1059 | |
|
|
1060 | for (i = asynccnt; i--; ) |
|
|
1061 | if (asyncs [i]->sent) |
|
|
1062 | { |
|
|
1063 | asyncs [i]->sent = 0; |
|
|
1064 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1065 | } |
|
|
1066 | } |
|
|
1067 | #endif |
858 | } |
1068 | } |
859 | |
1069 | |
860 | /*****************************************************************************/ |
1070 | /*****************************************************************************/ |
861 | |
1071 | |
|
|
1072 | static void |
|
|
1073 | ev_sighandler (int signum) |
|
|
1074 | { |
|
|
1075 | #if EV_MULTIPLICITY |
|
|
1076 | struct ev_loop *loop = &default_loop_struct; |
|
|
1077 | #endif |
|
|
1078 | |
|
|
1079 | #if _WIN32 |
|
|
1080 | signal (signum, ev_sighandler); |
|
|
1081 | #endif |
|
|
1082 | |
|
|
1083 | signals [signum - 1].gotsig = 1; |
|
|
1084 | evpipe_write (EV_A_ &gotsig); |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | void noinline |
|
|
1088 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1089 | { |
|
|
1090 | WL w; |
|
|
1091 | |
|
|
1092 | #if EV_MULTIPLICITY |
|
|
1093 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1094 | #endif |
|
|
1095 | |
|
|
1096 | --signum; |
|
|
1097 | |
|
|
1098 | if (signum < 0 || signum >= signalmax) |
|
|
1099 | return; |
|
|
1100 | |
|
|
1101 | signals [signum].gotsig = 0; |
|
|
1102 | |
|
|
1103 | for (w = signals [signum].head; w; w = w->next) |
|
|
1104 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | /*****************************************************************************/ |
|
|
1108 | |
862 | static WL childs [EV_PID_HASHSIZE]; |
1109 | static WL childs [EV_PID_HASHSIZE]; |
863 | |
1110 | |
864 | #ifndef _WIN32 |
1111 | #ifndef _WIN32 |
865 | |
1112 | |
866 | static ev_signal childev; |
1113 | static ev_signal childev; |
867 | |
1114 | |
|
|
1115 | #ifndef WIFCONTINUED |
|
|
1116 | # define WIFCONTINUED(status) 0 |
|
|
1117 | #endif |
|
|
1118 | |
868 | void inline_speed |
1119 | void inline_speed |
869 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1120 | child_reap (EV_P_ int chain, int pid, int status) |
870 | { |
1121 | { |
871 | ev_child *w; |
1122 | ev_child *w; |
|
|
1123 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
872 | |
1124 | |
873 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1125 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1126 | { |
874 | if (w->pid == pid || !w->pid) |
1127 | if ((w->pid == pid || !w->pid) |
|
|
1128 | && (!traced || (w->flags & 1))) |
875 | { |
1129 | { |
876 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1130 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
877 | w->rpid = pid; |
1131 | w->rpid = pid; |
878 | w->rstatus = status; |
1132 | w->rstatus = status; |
879 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1133 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
880 | } |
1134 | } |
|
|
1135 | } |
881 | } |
1136 | } |
882 | |
1137 | |
883 | #ifndef WCONTINUED |
1138 | #ifndef WCONTINUED |
884 | # define WCONTINUED 0 |
1139 | # define WCONTINUED 0 |
885 | #endif |
1140 | #endif |
… | |
… | |
894 | if (!WCONTINUED |
1149 | if (!WCONTINUED |
895 | || errno != EINVAL |
1150 | || errno != EINVAL |
896 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1151 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
897 | return; |
1152 | return; |
898 | |
1153 | |
899 | /* make sure we are called again until all childs have been reaped */ |
1154 | /* make sure we are called again until all children have been reaped */ |
900 | /* we need to do it this way so that the callback gets called before we continue */ |
1155 | /* we need to do it this way so that the callback gets called before we continue */ |
901 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1156 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
902 | |
1157 | |
903 | child_reap (EV_A_ sw, pid, pid, status); |
1158 | child_reap (EV_A_ pid, pid, status); |
904 | if (EV_PID_HASHSIZE > 1) |
1159 | if (EV_PID_HASHSIZE > 1) |
905 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1160 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
906 | } |
1161 | } |
907 | |
1162 | |
908 | #endif |
1163 | #endif |
909 | |
1164 | |
910 | /*****************************************************************************/ |
1165 | /*****************************************************************************/ |
… | |
… | |
1028 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1283 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1029 | have_monotonic = 1; |
1284 | have_monotonic = 1; |
1030 | } |
1285 | } |
1031 | #endif |
1286 | #endif |
1032 | |
1287 | |
1033 | ev_rt_now = ev_time (); |
1288 | ev_rt_now = ev_time (); |
1034 | mn_now = get_clock (); |
1289 | mn_now = get_clock (); |
1035 | now_floor = mn_now; |
1290 | now_floor = mn_now; |
1036 | rtmn_diff = ev_rt_now - mn_now; |
1291 | rtmn_diff = ev_rt_now - mn_now; |
1037 | |
1292 | |
1038 | io_blocktime = 0.; |
1293 | io_blocktime = 0.; |
1039 | timeout_blocktime = 0.; |
1294 | timeout_blocktime = 0.; |
|
|
1295 | backend = 0; |
|
|
1296 | backend_fd = -1; |
|
|
1297 | gotasync = 0; |
|
|
1298 | #if EV_USE_INOTIFY |
|
|
1299 | fs_fd = -2; |
|
|
1300 | #endif |
1040 | |
1301 | |
1041 | /* pid check not overridable via env */ |
1302 | /* pid check not overridable via env */ |
1042 | #ifndef _WIN32 |
1303 | #ifndef _WIN32 |
1043 | if (flags & EVFLAG_FORKCHECK) |
1304 | if (flags & EVFLAG_FORKCHECK) |
1044 | curpid = getpid (); |
1305 | curpid = getpid (); |
… | |
… | |
1047 | if (!(flags & EVFLAG_NOENV) |
1308 | if (!(flags & EVFLAG_NOENV) |
1048 | && !enable_secure () |
1309 | && !enable_secure () |
1049 | && getenv ("LIBEV_FLAGS")) |
1310 | && getenv ("LIBEV_FLAGS")) |
1050 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1311 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1051 | |
1312 | |
1052 | if (!(flags & 0x0000ffffUL)) |
1313 | if (!(flags & 0x0000ffffU)) |
1053 | flags |= ev_recommended_backends (); |
1314 | flags |= ev_recommended_backends (); |
1054 | |
|
|
1055 | backend = 0; |
|
|
1056 | backend_fd = -1; |
|
|
1057 | #if EV_USE_INOTIFY |
|
|
1058 | fs_fd = -2; |
|
|
1059 | #endif |
|
|
1060 | |
1315 | |
1061 | #if EV_USE_PORT |
1316 | #if EV_USE_PORT |
1062 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1317 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1063 | #endif |
1318 | #endif |
1064 | #if EV_USE_KQUEUE |
1319 | #if EV_USE_KQUEUE |
… | |
… | |
1072 | #endif |
1327 | #endif |
1073 | #if EV_USE_SELECT |
1328 | #if EV_USE_SELECT |
1074 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1329 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1075 | #endif |
1330 | #endif |
1076 | |
1331 | |
1077 | ev_init (&sigev, sigcb); |
1332 | ev_init (&pipeev, pipecb); |
1078 | ev_set_priority (&sigev, EV_MAXPRI); |
1333 | ev_set_priority (&pipeev, EV_MAXPRI); |
1079 | } |
1334 | } |
1080 | } |
1335 | } |
1081 | |
1336 | |
1082 | static void noinline |
1337 | static void noinline |
1083 | loop_destroy (EV_P) |
1338 | loop_destroy (EV_P) |
1084 | { |
1339 | { |
1085 | int i; |
1340 | int i; |
|
|
1341 | |
|
|
1342 | if (ev_is_active (&pipeev)) |
|
|
1343 | { |
|
|
1344 | ev_ref (EV_A); /* signal watcher */ |
|
|
1345 | ev_io_stop (EV_A_ &pipeev); |
|
|
1346 | |
|
|
1347 | #if EV_USE_EVENTFD |
|
|
1348 | if (evfd >= 0) |
|
|
1349 | close (evfd); |
|
|
1350 | #endif |
|
|
1351 | |
|
|
1352 | if (evpipe [0] >= 0) |
|
|
1353 | { |
|
|
1354 | close (evpipe [0]); |
|
|
1355 | close (evpipe [1]); |
|
|
1356 | } |
|
|
1357 | } |
1086 | |
1358 | |
1087 | #if EV_USE_INOTIFY |
1359 | #if EV_USE_INOTIFY |
1088 | if (fs_fd >= 0) |
1360 | if (fs_fd >= 0) |
1089 | close (fs_fd); |
1361 | close (fs_fd); |
1090 | #endif |
1362 | #endif |
… | |
… | |
1127 | #if EV_FORK_ENABLE |
1399 | #if EV_FORK_ENABLE |
1128 | array_free (fork, EMPTY); |
1400 | array_free (fork, EMPTY); |
1129 | #endif |
1401 | #endif |
1130 | array_free (prepare, EMPTY); |
1402 | array_free (prepare, EMPTY); |
1131 | array_free (check, EMPTY); |
1403 | array_free (check, EMPTY); |
|
|
1404 | #if EV_ASYNC_ENABLE |
|
|
1405 | array_free (async, EMPTY); |
|
|
1406 | #endif |
1132 | |
1407 | |
1133 | backend = 0; |
1408 | backend = 0; |
1134 | } |
1409 | } |
1135 | |
1410 | |
|
|
1411 | #if EV_USE_INOTIFY |
1136 | void inline_size infy_fork (EV_P); |
1412 | void inline_size infy_fork (EV_P); |
|
|
1413 | #endif |
1137 | |
1414 | |
1138 | void inline_size |
1415 | void inline_size |
1139 | loop_fork (EV_P) |
1416 | loop_fork (EV_P) |
1140 | { |
1417 | { |
1141 | #if EV_USE_PORT |
1418 | #if EV_USE_PORT |
… | |
… | |
1149 | #endif |
1426 | #endif |
1150 | #if EV_USE_INOTIFY |
1427 | #if EV_USE_INOTIFY |
1151 | infy_fork (EV_A); |
1428 | infy_fork (EV_A); |
1152 | #endif |
1429 | #endif |
1153 | |
1430 | |
1154 | if (ev_is_active (&sigev)) |
1431 | if (ev_is_active (&pipeev)) |
1155 | { |
1432 | { |
1156 | /* default loop */ |
1433 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1434 | /* while we modify the fd vars */ |
|
|
1435 | gotsig = 1; |
|
|
1436 | #if EV_ASYNC_ENABLE |
|
|
1437 | gotasync = 1; |
|
|
1438 | #endif |
1157 | |
1439 | |
1158 | ev_ref (EV_A); |
1440 | ev_ref (EV_A); |
1159 | ev_io_stop (EV_A_ &sigev); |
1441 | ev_io_stop (EV_A_ &pipeev); |
|
|
1442 | |
|
|
1443 | #if EV_USE_EVENTFD |
|
|
1444 | if (evfd >= 0) |
|
|
1445 | close (evfd); |
|
|
1446 | #endif |
|
|
1447 | |
|
|
1448 | if (evpipe [0] >= 0) |
|
|
1449 | { |
1160 | close (sigpipe [0]); |
1450 | close (evpipe [0]); |
1161 | close (sigpipe [1]); |
1451 | close (evpipe [1]); |
|
|
1452 | } |
1162 | |
1453 | |
1163 | while (pipe (sigpipe)) |
|
|
1164 | syserr ("(libev) error creating pipe"); |
|
|
1165 | |
|
|
1166 | siginit (EV_A); |
1454 | evpipe_init (EV_A); |
|
|
1455 | /* now iterate over everything, in case we missed something */ |
|
|
1456 | pipecb (EV_A_ &pipeev, EV_READ); |
1167 | } |
1457 | } |
1168 | |
1458 | |
1169 | postfork = 0; |
1459 | postfork = 0; |
1170 | } |
1460 | } |
1171 | |
1461 | |
… | |
… | |
1193 | } |
1483 | } |
1194 | |
1484 | |
1195 | void |
1485 | void |
1196 | ev_loop_fork (EV_P) |
1486 | ev_loop_fork (EV_P) |
1197 | { |
1487 | { |
1198 | postfork = 1; |
1488 | postfork = 1; /* must be in line with ev_default_fork */ |
1199 | } |
1489 | } |
1200 | |
|
|
1201 | #endif |
1490 | #endif |
1202 | |
1491 | |
1203 | #if EV_MULTIPLICITY |
1492 | #if EV_MULTIPLICITY |
1204 | struct ev_loop * |
1493 | struct ev_loop * |
1205 | ev_default_loop_init (unsigned int flags) |
1494 | ev_default_loop_init (unsigned int flags) |
1206 | #else |
1495 | #else |
1207 | int |
1496 | int |
1208 | ev_default_loop (unsigned int flags) |
1497 | ev_default_loop (unsigned int flags) |
1209 | #endif |
1498 | #endif |
1210 | { |
1499 | { |
1211 | if (sigpipe [0] == sigpipe [1]) |
|
|
1212 | if (pipe (sigpipe)) |
|
|
1213 | return 0; |
|
|
1214 | |
|
|
1215 | if (!ev_default_loop_ptr) |
1500 | if (!ev_default_loop_ptr) |
1216 | { |
1501 | { |
1217 | #if EV_MULTIPLICITY |
1502 | #if EV_MULTIPLICITY |
1218 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1503 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1219 | #else |
1504 | #else |
… | |
… | |
1222 | |
1507 | |
1223 | loop_init (EV_A_ flags); |
1508 | loop_init (EV_A_ flags); |
1224 | |
1509 | |
1225 | if (ev_backend (EV_A)) |
1510 | if (ev_backend (EV_A)) |
1226 | { |
1511 | { |
1227 | siginit (EV_A); |
|
|
1228 | |
|
|
1229 | #ifndef _WIN32 |
1512 | #ifndef _WIN32 |
1230 | ev_signal_init (&childev, childcb, SIGCHLD); |
1513 | ev_signal_init (&childev, childcb, SIGCHLD); |
1231 | ev_set_priority (&childev, EV_MAXPRI); |
1514 | ev_set_priority (&childev, EV_MAXPRI); |
1232 | ev_signal_start (EV_A_ &childev); |
1515 | ev_signal_start (EV_A_ &childev); |
1233 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1516 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1250 | #ifndef _WIN32 |
1533 | #ifndef _WIN32 |
1251 | ev_ref (EV_A); /* child watcher */ |
1534 | ev_ref (EV_A); /* child watcher */ |
1252 | ev_signal_stop (EV_A_ &childev); |
1535 | ev_signal_stop (EV_A_ &childev); |
1253 | #endif |
1536 | #endif |
1254 | |
1537 | |
1255 | ev_ref (EV_A); /* signal watcher */ |
|
|
1256 | ev_io_stop (EV_A_ &sigev); |
|
|
1257 | |
|
|
1258 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1259 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1260 | |
|
|
1261 | loop_destroy (EV_A); |
1538 | loop_destroy (EV_A); |
1262 | } |
1539 | } |
1263 | |
1540 | |
1264 | void |
1541 | void |
1265 | ev_default_fork (void) |
1542 | ev_default_fork (void) |
… | |
… | |
1267 | #if EV_MULTIPLICITY |
1544 | #if EV_MULTIPLICITY |
1268 | struct ev_loop *loop = ev_default_loop_ptr; |
1545 | struct ev_loop *loop = ev_default_loop_ptr; |
1269 | #endif |
1546 | #endif |
1270 | |
1547 | |
1271 | if (backend) |
1548 | if (backend) |
1272 | postfork = 1; |
1549 | postfork = 1; /* must be in line with ev_loop_fork */ |
1273 | } |
1550 | } |
1274 | |
1551 | |
1275 | /*****************************************************************************/ |
1552 | /*****************************************************************************/ |
1276 | |
1553 | |
1277 | void |
1554 | void |
… | |
… | |
1297 | p->w->pending = 0; |
1574 | p->w->pending = 0; |
1298 | EV_CB_INVOKE (p->w, p->events); |
1575 | EV_CB_INVOKE (p->w, p->events); |
1299 | } |
1576 | } |
1300 | } |
1577 | } |
1301 | } |
1578 | } |
1302 | |
|
|
1303 | void inline_size |
|
|
1304 | timers_reify (EV_P) |
|
|
1305 | { |
|
|
1306 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1307 | { |
|
|
1308 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1309 | |
|
|
1310 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1311 | |
|
|
1312 | /* first reschedule or stop timer */ |
|
|
1313 | if (w->repeat) |
|
|
1314 | { |
|
|
1315 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1316 | |
|
|
1317 | ((WT)w)->at += w->repeat; |
|
|
1318 | if (((WT)w)->at < mn_now) |
|
|
1319 | ((WT)w)->at = mn_now; |
|
|
1320 | |
|
|
1321 | downheap (timers, timercnt, 0); |
|
|
1322 | } |
|
|
1323 | else |
|
|
1324 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1325 | |
|
|
1326 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1327 | } |
|
|
1328 | } |
|
|
1329 | |
|
|
1330 | #if EV_PERIODIC_ENABLE |
|
|
1331 | void inline_size |
|
|
1332 | periodics_reify (EV_P) |
|
|
1333 | { |
|
|
1334 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1335 | { |
|
|
1336 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1337 | |
|
|
1338 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1339 | |
|
|
1340 | /* first reschedule or stop timer */ |
|
|
1341 | if (w->reschedule_cb) |
|
|
1342 | { |
|
|
1343 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1344 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1345 | downheap (periodics, periodiccnt, 0); |
|
|
1346 | } |
|
|
1347 | else if (w->interval) |
|
|
1348 | { |
|
|
1349 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1350 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1351 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1352 | downheap (periodics, periodiccnt, 0); |
|
|
1353 | } |
|
|
1354 | else |
|
|
1355 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1356 | |
|
|
1357 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1358 | } |
|
|
1359 | } |
|
|
1360 | |
|
|
1361 | static void noinline |
|
|
1362 | periodics_reschedule (EV_P) |
|
|
1363 | { |
|
|
1364 | int i; |
|
|
1365 | |
|
|
1366 | /* adjust periodics after time jump */ |
|
|
1367 | for (i = 0; i < periodiccnt; ++i) |
|
|
1368 | { |
|
|
1369 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1370 | |
|
|
1371 | if (w->reschedule_cb) |
|
|
1372 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1373 | else if (w->interval) |
|
|
1374 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* now rebuild the heap */ |
|
|
1378 | for (i = periodiccnt >> 1; i--; ) |
|
|
1379 | downheap (periodics, periodiccnt, i); |
|
|
1380 | } |
|
|
1381 | #endif |
|
|
1382 | |
1579 | |
1383 | #if EV_IDLE_ENABLE |
1580 | #if EV_IDLE_ENABLE |
1384 | void inline_size |
1581 | void inline_size |
1385 | idle_reify (EV_P) |
1582 | idle_reify (EV_P) |
1386 | { |
1583 | { |
… | |
… | |
1398 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1595 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1399 | break; |
1596 | break; |
1400 | } |
1597 | } |
1401 | } |
1598 | } |
1402 | } |
1599 | } |
|
|
1600 | } |
|
|
1601 | #endif |
|
|
1602 | |
|
|
1603 | void inline_size |
|
|
1604 | timers_reify (EV_P) |
|
|
1605 | { |
|
|
1606 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
|
|
1607 | { |
|
|
1608 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1609 | |
|
|
1610 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1611 | |
|
|
1612 | /* first reschedule or stop timer */ |
|
|
1613 | if (w->repeat) |
|
|
1614 | { |
|
|
1615 | ev_at (w) += w->repeat; |
|
|
1616 | if (ev_at (w) < mn_now) |
|
|
1617 | ev_at (w) = mn_now; |
|
|
1618 | |
|
|
1619 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1620 | |
|
|
1621 | ANHE_at_set (timers [HEAP0]); |
|
|
1622 | downheap (timers, timercnt, HEAP0); |
|
|
1623 | } |
|
|
1624 | else |
|
|
1625 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1626 | |
|
|
1627 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1628 | } |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | #if EV_PERIODIC_ENABLE |
|
|
1632 | void inline_size |
|
|
1633 | periodics_reify (EV_P) |
|
|
1634 | { |
|
|
1635 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
|
|
1636 | { |
|
|
1637 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1638 | |
|
|
1639 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1640 | |
|
|
1641 | /* first reschedule or stop timer */ |
|
|
1642 | if (w->reschedule_cb) |
|
|
1643 | { |
|
|
1644 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1645 | |
|
|
1646 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1647 | |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
|
|
1649 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1650 | } |
|
|
1651 | else if (w->interval) |
|
|
1652 | { |
|
|
1653 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1654 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1655 | |
|
|
1656 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1657 | |
|
|
1658 | ANHE_at_set (periodics [HEAP0]); |
|
|
1659 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1660 | } |
|
|
1661 | else |
|
|
1662 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1663 | |
|
|
1664 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1665 | } |
|
|
1666 | } |
|
|
1667 | |
|
|
1668 | static void noinline |
|
|
1669 | periodics_reschedule (EV_P) |
|
|
1670 | { |
|
|
1671 | int i; |
|
|
1672 | |
|
|
1673 | /* adjust periodics after time jump */ |
|
|
1674 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1675 | { |
|
|
1676 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1677 | |
|
|
1678 | if (w->reschedule_cb) |
|
|
1679 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1680 | else if (w->interval) |
|
|
1681 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1682 | |
|
|
1683 | ANHE_at_set (periodics [i]); |
|
|
1684 | } |
|
|
1685 | |
|
|
1686 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
|
|
1687 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
|
|
1688 | for (i = 0; i < periodiccnt; ++i) |
|
|
1689 | upheap (periodics, i + HEAP0); |
1403 | } |
1690 | } |
1404 | #endif |
1691 | #endif |
1405 | |
1692 | |
1406 | void inline_speed |
1693 | void inline_speed |
1407 | time_update (EV_P_ ev_tstamp max_block) |
1694 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1436 | */ |
1723 | */ |
1437 | for (i = 4; --i; ) |
1724 | for (i = 4; --i; ) |
1438 | { |
1725 | { |
1439 | rtmn_diff = ev_rt_now - mn_now; |
1726 | rtmn_diff = ev_rt_now - mn_now; |
1440 | |
1727 | |
1441 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1728 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1442 | return; /* all is well */ |
1729 | return; /* all is well */ |
1443 | |
1730 | |
1444 | ev_rt_now = ev_time (); |
1731 | ev_rt_now = ev_time (); |
1445 | mn_now = get_clock (); |
1732 | mn_now = get_clock (); |
1446 | now_floor = mn_now; |
1733 | now_floor = mn_now; |
… | |
… | |
1462 | #if EV_PERIODIC_ENABLE |
1749 | #if EV_PERIODIC_ENABLE |
1463 | periodics_reschedule (EV_A); |
1750 | periodics_reschedule (EV_A); |
1464 | #endif |
1751 | #endif |
1465 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1752 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1466 | for (i = 0; i < timercnt; ++i) |
1753 | for (i = 0; i < timercnt; ++i) |
|
|
1754 | { |
|
|
1755 | ANHE *he = timers + i + HEAP0; |
1467 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1756 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1757 | ANHE_at_set (*he); |
|
|
1758 | } |
1468 | } |
1759 | } |
1469 | |
1760 | |
1470 | mn_now = ev_rt_now; |
1761 | mn_now = ev_rt_now; |
1471 | } |
1762 | } |
1472 | } |
1763 | } |
… | |
… | |
1486 | static int loop_done; |
1777 | static int loop_done; |
1487 | |
1778 | |
1488 | void |
1779 | void |
1489 | ev_loop (EV_P_ int flags) |
1780 | ev_loop (EV_P_ int flags) |
1490 | { |
1781 | { |
1491 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1782 | loop_done = EVUNLOOP_CANCEL; |
1492 | ? EVUNLOOP_ONE |
|
|
1493 | : EVUNLOOP_CANCEL; |
|
|
1494 | |
1783 | |
1495 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1784 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1496 | |
1785 | |
1497 | do |
1786 | do |
1498 | { |
1787 | { |
… | |
… | |
1544 | |
1833 | |
1545 | waittime = MAX_BLOCKTIME; |
1834 | waittime = MAX_BLOCKTIME; |
1546 | |
1835 | |
1547 | if (timercnt) |
1836 | if (timercnt) |
1548 | { |
1837 | { |
1549 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1838 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1550 | if (waittime > to) waittime = to; |
1839 | if (waittime > to) waittime = to; |
1551 | } |
1840 | } |
1552 | |
1841 | |
1553 | #if EV_PERIODIC_ENABLE |
1842 | #if EV_PERIODIC_ENABLE |
1554 | if (periodiccnt) |
1843 | if (periodiccnt) |
1555 | { |
1844 | { |
1556 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1845 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1557 | if (waittime > to) waittime = to; |
1846 | if (waittime > to) waittime = to; |
1558 | } |
1847 | } |
1559 | #endif |
1848 | #endif |
1560 | |
1849 | |
1561 | if (expect_false (waittime < timeout_blocktime)) |
1850 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1594 | /* queue check watchers, to be executed first */ |
1883 | /* queue check watchers, to be executed first */ |
1595 | if (expect_false (checkcnt)) |
1884 | if (expect_false (checkcnt)) |
1596 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1885 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1597 | |
1886 | |
1598 | call_pending (EV_A); |
1887 | call_pending (EV_A); |
1599 | |
|
|
1600 | } |
1888 | } |
1601 | while (expect_true (activecnt && !loop_done)); |
1889 | while (expect_true ( |
|
|
1890 | activecnt |
|
|
1891 | && !loop_done |
|
|
1892 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1893 | )); |
1602 | |
1894 | |
1603 | if (loop_done == EVUNLOOP_ONE) |
1895 | if (loop_done == EVUNLOOP_ONE) |
1604 | loop_done = EVUNLOOP_CANCEL; |
1896 | loop_done = EVUNLOOP_CANCEL; |
1605 | } |
1897 | } |
1606 | |
1898 | |
… | |
… | |
1710 | { |
2002 | { |
1711 | clear_pending (EV_A_ (W)w); |
2003 | clear_pending (EV_A_ (W)w); |
1712 | if (expect_false (!ev_is_active (w))) |
2004 | if (expect_false (!ev_is_active (w))) |
1713 | return; |
2005 | return; |
1714 | |
2006 | |
1715 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2007 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1716 | |
2008 | |
1717 | wlist_del (&anfds[w->fd].head, (WL)w); |
2009 | wlist_del (&anfds[w->fd].head, (WL)w); |
1718 | ev_stop (EV_A_ (W)w); |
2010 | ev_stop (EV_A_ (W)w); |
1719 | |
2011 | |
1720 | fd_change (EV_A_ w->fd, 1); |
2012 | fd_change (EV_A_ w->fd, 1); |
… | |
… | |
1724 | ev_timer_start (EV_P_ ev_timer *w) |
2016 | ev_timer_start (EV_P_ ev_timer *w) |
1725 | { |
2017 | { |
1726 | if (expect_false (ev_is_active (w))) |
2018 | if (expect_false (ev_is_active (w))) |
1727 | return; |
2019 | return; |
1728 | |
2020 | |
1729 | ((WT)w)->at += mn_now; |
2021 | ev_at (w) += mn_now; |
1730 | |
2022 | |
1731 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2023 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1732 | |
2024 | |
1733 | ev_start (EV_A_ (W)w, ++timercnt); |
2025 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1734 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2026 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1735 | timers [timercnt - 1] = (WT)w; |
2027 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1736 | upheap (timers, timercnt - 1); |
2028 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2029 | upheap (timers, ev_active (w)); |
1737 | |
2030 | |
1738 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2031 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1739 | } |
2032 | } |
1740 | |
2033 | |
1741 | void noinline |
2034 | void noinline |
1742 | ev_timer_stop (EV_P_ ev_timer *w) |
2035 | ev_timer_stop (EV_P_ ev_timer *w) |
1743 | { |
2036 | { |
1744 | clear_pending (EV_A_ (W)w); |
2037 | clear_pending (EV_A_ (W)w); |
1745 | if (expect_false (!ev_is_active (w))) |
2038 | if (expect_false (!ev_is_active (w))) |
1746 | return; |
2039 | return; |
1747 | |
2040 | |
1748 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1749 | |
|
|
1750 | { |
2041 | { |
1751 | int active = ((W)w)->active; |
2042 | int active = ev_active (w); |
1752 | |
2043 | |
|
|
2044 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2045 | |
1753 | if (expect_true (--active < --timercnt)) |
2046 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1754 | { |
2047 | { |
1755 | timers [active] = timers [timercnt]; |
2048 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1756 | adjustheap (timers, timercnt, active); |
2049 | adjustheap (timers, timercnt, active); |
1757 | } |
2050 | } |
|
|
2051 | |
|
|
2052 | --timercnt; |
1758 | } |
2053 | } |
1759 | |
2054 | |
1760 | ((WT)w)->at -= mn_now; |
2055 | ev_at (w) -= mn_now; |
1761 | |
2056 | |
1762 | ev_stop (EV_A_ (W)w); |
2057 | ev_stop (EV_A_ (W)w); |
1763 | } |
2058 | } |
1764 | |
2059 | |
1765 | void noinline |
2060 | void noinline |
… | |
… | |
1767 | { |
2062 | { |
1768 | if (ev_is_active (w)) |
2063 | if (ev_is_active (w)) |
1769 | { |
2064 | { |
1770 | if (w->repeat) |
2065 | if (w->repeat) |
1771 | { |
2066 | { |
1772 | ((WT)w)->at = mn_now + w->repeat; |
2067 | ev_at (w) = mn_now + w->repeat; |
|
|
2068 | ANHE_at_set (timers [ev_active (w)]); |
1773 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2069 | adjustheap (timers, timercnt, ev_active (w)); |
1774 | } |
2070 | } |
1775 | else |
2071 | else |
1776 | ev_timer_stop (EV_A_ w); |
2072 | ev_timer_stop (EV_A_ w); |
1777 | } |
2073 | } |
1778 | else if (w->repeat) |
2074 | else if (w->repeat) |
1779 | { |
2075 | { |
1780 | w->at = w->repeat; |
2076 | ev_at (w) = w->repeat; |
1781 | ev_timer_start (EV_A_ w); |
2077 | ev_timer_start (EV_A_ w); |
1782 | } |
2078 | } |
1783 | } |
2079 | } |
1784 | |
2080 | |
1785 | #if EV_PERIODIC_ENABLE |
2081 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1788 | { |
2084 | { |
1789 | if (expect_false (ev_is_active (w))) |
2085 | if (expect_false (ev_is_active (w))) |
1790 | return; |
2086 | return; |
1791 | |
2087 | |
1792 | if (w->reschedule_cb) |
2088 | if (w->reschedule_cb) |
1793 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2089 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1794 | else if (w->interval) |
2090 | else if (w->interval) |
1795 | { |
2091 | { |
1796 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2092 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1797 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2093 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1798 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2094 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1799 | } |
2095 | } |
1800 | else |
2096 | else |
1801 | ((WT)w)->at = w->offset; |
2097 | ev_at (w) = w->offset; |
1802 | |
2098 | |
1803 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2099 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1804 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2100 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1805 | periodics [periodiccnt - 1] = (WT)w; |
2101 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1806 | upheap (periodics, periodiccnt - 1); |
2102 | ANHE_at_set (periodics [ev_active (w)]); |
|
|
2103 | upheap (periodics, ev_active (w)); |
1807 | |
2104 | |
1808 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2105 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1809 | } |
2106 | } |
1810 | |
2107 | |
1811 | void noinline |
2108 | void noinline |
1812 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2109 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1813 | { |
2110 | { |
1814 | clear_pending (EV_A_ (W)w); |
2111 | clear_pending (EV_A_ (W)w); |
1815 | if (expect_false (!ev_is_active (w))) |
2112 | if (expect_false (!ev_is_active (w))) |
1816 | return; |
2113 | return; |
1817 | |
2114 | |
1818 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1819 | |
|
|
1820 | { |
2115 | { |
1821 | int active = ((W)w)->active; |
2116 | int active = ev_active (w); |
1822 | |
2117 | |
|
|
2118 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2119 | |
1823 | if (expect_true (--active < --periodiccnt)) |
2120 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1824 | { |
2121 | { |
1825 | periodics [active] = periodics [periodiccnt]; |
2122 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1826 | adjustheap (periodics, periodiccnt, active); |
2123 | adjustheap (periodics, periodiccnt, active); |
1827 | } |
2124 | } |
|
|
2125 | |
|
|
2126 | --periodiccnt; |
1828 | } |
2127 | } |
1829 | |
2128 | |
1830 | ev_stop (EV_A_ (W)w); |
2129 | ev_stop (EV_A_ (W)w); |
1831 | } |
2130 | } |
1832 | |
2131 | |
… | |
… | |
1851 | #endif |
2150 | #endif |
1852 | if (expect_false (ev_is_active (w))) |
2151 | if (expect_false (ev_is_active (w))) |
1853 | return; |
2152 | return; |
1854 | |
2153 | |
1855 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2154 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2155 | |
|
|
2156 | evpipe_init (EV_A); |
1856 | |
2157 | |
1857 | { |
2158 | { |
1858 | #ifndef _WIN32 |
2159 | #ifndef _WIN32 |
1859 | sigset_t full, prev; |
2160 | sigset_t full, prev; |
1860 | sigfillset (&full); |
2161 | sigfillset (&full); |
… | |
… | |
1872 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2173 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1873 | |
2174 | |
1874 | if (!((WL)w)->next) |
2175 | if (!((WL)w)->next) |
1875 | { |
2176 | { |
1876 | #if _WIN32 |
2177 | #if _WIN32 |
1877 | signal (w->signum, sighandler); |
2178 | signal (w->signum, ev_sighandler); |
1878 | #else |
2179 | #else |
1879 | struct sigaction sa; |
2180 | struct sigaction sa; |
1880 | sa.sa_handler = sighandler; |
2181 | sa.sa_handler = ev_sighandler; |
1881 | sigfillset (&sa.sa_mask); |
2182 | sigfillset (&sa.sa_mask); |
1882 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2183 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1883 | sigaction (w->signum, &sa, 0); |
2184 | sigaction (w->signum, &sa, 0); |
1884 | #endif |
2185 | #endif |
1885 | } |
2186 | } |
… | |
… | |
1946 | if (w->wd < 0) |
2247 | if (w->wd < 0) |
1947 | { |
2248 | { |
1948 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2249 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1949 | |
2250 | |
1950 | /* monitor some parent directory for speedup hints */ |
2251 | /* monitor some parent directory for speedup hints */ |
|
|
2252 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2253 | /* but an efficiency issue only */ |
1951 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2254 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1952 | { |
2255 | { |
1953 | char path [4096]; |
2256 | char path [4096]; |
1954 | strcpy (path, w->path); |
2257 | strcpy (path, w->path); |
1955 | |
2258 | |
… | |
… | |
2200 | clear_pending (EV_A_ (W)w); |
2503 | clear_pending (EV_A_ (W)w); |
2201 | if (expect_false (!ev_is_active (w))) |
2504 | if (expect_false (!ev_is_active (w))) |
2202 | return; |
2505 | return; |
2203 | |
2506 | |
2204 | { |
2507 | { |
2205 | int active = ((W)w)->active; |
2508 | int active = ev_active (w); |
2206 | |
2509 | |
2207 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2510 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2208 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2511 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2209 | |
2512 | |
2210 | ev_stop (EV_A_ (W)w); |
2513 | ev_stop (EV_A_ (W)w); |
2211 | --idleall; |
2514 | --idleall; |
2212 | } |
2515 | } |
2213 | } |
2516 | } |
… | |
… | |
2230 | clear_pending (EV_A_ (W)w); |
2533 | clear_pending (EV_A_ (W)w); |
2231 | if (expect_false (!ev_is_active (w))) |
2534 | if (expect_false (!ev_is_active (w))) |
2232 | return; |
2535 | return; |
2233 | |
2536 | |
2234 | { |
2537 | { |
2235 | int active = ((W)w)->active; |
2538 | int active = ev_active (w); |
|
|
2539 | |
2236 | prepares [active - 1] = prepares [--preparecnt]; |
2540 | prepares [active - 1] = prepares [--preparecnt]; |
2237 | ((W)prepares [active - 1])->active = active; |
2541 | ev_active (prepares [active - 1]) = active; |
2238 | } |
2542 | } |
2239 | |
2543 | |
2240 | ev_stop (EV_A_ (W)w); |
2544 | ev_stop (EV_A_ (W)w); |
2241 | } |
2545 | } |
2242 | |
2546 | |
… | |
… | |
2257 | clear_pending (EV_A_ (W)w); |
2561 | clear_pending (EV_A_ (W)w); |
2258 | if (expect_false (!ev_is_active (w))) |
2562 | if (expect_false (!ev_is_active (w))) |
2259 | return; |
2563 | return; |
2260 | |
2564 | |
2261 | { |
2565 | { |
2262 | int active = ((W)w)->active; |
2566 | int active = ev_active (w); |
|
|
2567 | |
2263 | checks [active - 1] = checks [--checkcnt]; |
2568 | checks [active - 1] = checks [--checkcnt]; |
2264 | ((W)checks [active - 1])->active = active; |
2569 | ev_active (checks [active - 1]) = active; |
2265 | } |
2570 | } |
2266 | |
2571 | |
2267 | ev_stop (EV_A_ (W)w); |
2572 | ev_stop (EV_A_ (W)w); |
2268 | } |
2573 | } |
2269 | |
2574 | |
… | |
… | |
2365 | clear_pending (EV_A_ (W)w); |
2670 | clear_pending (EV_A_ (W)w); |
2366 | if (expect_false (!ev_is_active (w))) |
2671 | if (expect_false (!ev_is_active (w))) |
2367 | return; |
2672 | return; |
2368 | |
2673 | |
2369 | { |
2674 | { |
2370 | int active = ((W)w)->active; |
2675 | int active = ev_active (w); |
|
|
2676 | |
2371 | forks [active - 1] = forks [--forkcnt]; |
2677 | forks [active - 1] = forks [--forkcnt]; |
2372 | ((W)forks [active - 1])->active = active; |
2678 | ev_active (forks [active - 1]) = active; |
2373 | } |
2679 | } |
2374 | |
2680 | |
2375 | ev_stop (EV_A_ (W)w); |
2681 | ev_stop (EV_A_ (W)w); |
|
|
2682 | } |
|
|
2683 | #endif |
|
|
2684 | |
|
|
2685 | #if EV_ASYNC_ENABLE |
|
|
2686 | void |
|
|
2687 | ev_async_start (EV_P_ ev_async *w) |
|
|
2688 | { |
|
|
2689 | if (expect_false (ev_is_active (w))) |
|
|
2690 | return; |
|
|
2691 | |
|
|
2692 | evpipe_init (EV_A); |
|
|
2693 | |
|
|
2694 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2695 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2696 | asyncs [asynccnt - 1] = w; |
|
|
2697 | } |
|
|
2698 | |
|
|
2699 | void |
|
|
2700 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2701 | { |
|
|
2702 | clear_pending (EV_A_ (W)w); |
|
|
2703 | if (expect_false (!ev_is_active (w))) |
|
|
2704 | return; |
|
|
2705 | |
|
|
2706 | { |
|
|
2707 | int active = ev_active (w); |
|
|
2708 | |
|
|
2709 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2710 | ev_active (asyncs [active - 1]) = active; |
|
|
2711 | } |
|
|
2712 | |
|
|
2713 | ev_stop (EV_A_ (W)w); |
|
|
2714 | } |
|
|
2715 | |
|
|
2716 | void |
|
|
2717 | ev_async_send (EV_P_ ev_async *w) |
|
|
2718 | { |
|
|
2719 | w->sent = 1; |
|
|
2720 | evpipe_write (EV_A_ &gotasync); |
2376 | } |
2721 | } |
2377 | #endif |
2722 | #endif |
2378 | |
2723 | |
2379 | /*****************************************************************************/ |
2724 | /*****************************************************************************/ |
2380 | |
2725 | |