… | |
… | |
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 EV_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 |
… | |
… | |
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 | */ |
|
|
383 | |
|
|
384 | if (size) |
|
|
385 | return realloc (ptr, size); |
|
|
386 | |
|
|
387 | free (ptr); |
|
|
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 | |
|
|
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; |
… | |
… | |
702 | } |
786 | } |
703 | } |
787 | } |
704 | |
788 | |
705 | /*****************************************************************************/ |
789 | /*****************************************************************************/ |
706 | |
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 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
808 | |
|
|
809 | /* towards the root */ |
707 | void inline_speed |
810 | void inline_speed |
708 | upheap (WT *heap, int k) |
811 | upheap (ANHE *heap, int k) |
709 | { |
812 | { |
710 | WT w = heap [k]; |
813 | ANHE he = heap [k]; |
711 | |
814 | |
712 | while (k) |
815 | for (;;) |
713 | { |
816 | { |
714 | int p = (k - 1) >> 1; |
817 | int p = HPARENT (k); |
715 | |
818 | |
716 | if (heap [p]->at <= w->at) |
819 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
717 | break; |
820 | break; |
718 | |
821 | |
719 | heap [k] = heap [p]; |
822 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
823 | ev_active (ANHE_w (heap [k])) = k; |
721 | k = p; |
824 | k = p; |
722 | } |
825 | } |
723 | |
826 | |
724 | heap [k] = w; |
827 | heap [k] = he; |
725 | ((W)heap [k])->active = k + 1; |
828 | ev_active (ANHE_w (he)) = k; |
726 | } |
829 | } |
727 | |
830 | |
|
|
831 | /* away from the root */ |
728 | void inline_speed |
832 | void inline_speed |
729 | downheap (WT *heap, int N, int k) |
833 | downheap (ANHE *heap, int N, int k) |
730 | { |
834 | { |
731 | WT w = heap [k]; |
835 | ANHE he = heap [k]; |
|
|
836 | ANHE *E = heap + N + HEAP0; |
732 | |
837 | |
733 | for (;;) |
838 | for (;;) |
734 | { |
839 | { |
735 | int c = (k << 1) + 1; |
840 | ev_tstamp minat; |
|
|
841 | ANHE *minpos; |
|
|
842 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
736 | |
843 | |
737 | if (c >= N) |
844 | // find minimum child |
|
|
845 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
846 | { |
|
|
847 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
848 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
849 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
850 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
851 | } |
|
|
852 | else if (pos < E) |
|
|
853 | { |
|
|
854 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
855 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
856 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
857 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
858 | } |
|
|
859 | else |
738 | break; |
860 | break; |
739 | |
861 | |
|
|
862 | if (ANHE_at (he) <= minat) |
|
|
863 | break; |
|
|
864 | |
|
|
865 | heap [k] = *minpos; |
|
|
866 | ev_active (ANHE_w (*minpos)) = k; |
|
|
867 | |
|
|
868 | k = minpos - heap; |
|
|
869 | } |
|
|
870 | |
|
|
871 | heap [k] = he; |
|
|
872 | ev_active (ANHE_w (he)) = k; |
|
|
873 | } |
|
|
874 | |
|
|
875 | #else // 4HEAP |
|
|
876 | |
|
|
877 | #define HEAP0 1 |
|
|
878 | #define HPARENT(k) ((k) >> 1) |
|
|
879 | |
|
|
880 | /* towards the root */ |
|
|
881 | void inline_speed |
|
|
882 | upheap (ANHE *heap, int k) |
|
|
883 | { |
|
|
884 | ANHE he = heap [k]; |
|
|
885 | |
|
|
886 | for (;;) |
|
|
887 | { |
|
|
888 | int p = HPARENT (k); |
|
|
889 | |
|
|
890 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
891 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
892 | break; |
|
|
893 | |
|
|
894 | heap [k] = heap [p]; |
|
|
895 | ev_active (ANHE_w (heap [k])) = k; |
|
|
896 | k = p; |
|
|
897 | } |
|
|
898 | |
|
|
899 | heap [k] = he; |
|
|
900 | ev_active (ANHE_w (heap [k])) = k; |
|
|
901 | } |
|
|
902 | |
|
|
903 | /* away from the root */ |
|
|
904 | void inline_speed |
|
|
905 | downheap (ANHE *heap, int N, int k) |
|
|
906 | { |
|
|
907 | ANHE he = heap [k]; |
|
|
908 | |
|
|
909 | for (;;) |
|
|
910 | { |
|
|
911 | int c = k << 1; |
|
|
912 | |
|
|
913 | if (c > N) |
|
|
914 | break; |
|
|
915 | |
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
916 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
741 | ? 1 : 0; |
917 | ? 1 : 0; |
742 | |
918 | |
743 | if (w->at <= heap [c]->at) |
919 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
744 | break; |
920 | break; |
745 | |
921 | |
746 | heap [k] = heap [c]; |
922 | heap [k] = heap [c]; |
747 | ((W)heap [k])->active = k + 1; |
923 | ev_active (ANHE_w (heap [k])) = k; |
748 | |
924 | |
749 | k = c; |
925 | k = c; |
750 | } |
926 | } |
751 | |
927 | |
752 | heap [k] = w; |
928 | heap [k] = he; |
753 | ((W)heap [k])->active = k + 1; |
929 | ev_active (ANHE_w (he)) = k; |
754 | } |
930 | } |
|
|
931 | #endif |
755 | |
932 | |
756 | void inline_size |
933 | void inline_size |
757 | adjustheap (WT *heap, int N, int k) |
934 | adjustheap (ANHE *heap, int N, int k) |
758 | { |
935 | { |
|
|
936 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
759 | upheap (heap, k); |
937 | upheap (heap, k); |
|
|
938 | else |
760 | downheap (heap, N, k); |
939 | downheap (heap, N, k); |
761 | } |
940 | } |
762 | |
941 | |
763 | /*****************************************************************************/ |
942 | /*****************************************************************************/ |
764 | |
943 | |
765 | typedef struct |
944 | typedef struct |
… | |
… | |
802 | static void noinline |
981 | static void noinline |
803 | evpipe_init (EV_P) |
982 | evpipe_init (EV_P) |
804 | { |
983 | { |
805 | if (!ev_is_active (&pipeev)) |
984 | if (!ev_is_active (&pipeev)) |
806 | { |
985 | { |
|
|
986 | #if EV_USE_EVENTFD |
|
|
987 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
988 | { |
|
|
989 | evpipe [0] = -1; |
|
|
990 | fd_intern (evfd); |
|
|
991 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
992 | } |
|
|
993 | else |
|
|
994 | #endif |
|
|
995 | { |
807 | while (pipe (evpipe)) |
996 | while (pipe (evpipe)) |
808 | syserr ("(libev) error creating signal/async pipe"); |
997 | syserr ("(libev) error creating signal/async pipe"); |
809 | |
998 | |
810 | fd_intern (evpipe [0]); |
999 | fd_intern (evpipe [0]); |
811 | fd_intern (evpipe [1]); |
1000 | fd_intern (evpipe [1]); |
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1001 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1002 | } |
|
|
1003 | |
814 | ev_io_start (EV_A_ &pipeev); |
1004 | ev_io_start (EV_A_ &pipeev); |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1005 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
816 | |
|
|
817 | /* in case we received the signal before we had the chance of installing a handler */ |
|
|
818 | ev_feed_event (EV_A_ &pipeev, 0); |
|
|
819 | } |
1006 | } |
820 | } |
1007 | } |
821 | |
1008 | |
822 | void inline_size |
1009 | void inline_size |
823 | evpipe_write (EV_P_ int sig, int async) |
1010 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
824 | { |
1011 | { |
825 | if (!(gotasync || gotsig)) |
1012 | if (!*flag) |
826 | { |
1013 | { |
827 | int old_errno = errno; /* save errno becaue write might clobber it */ |
1014 | int old_errno = errno; /* save errno because write might clobber it */ |
828 | |
1015 | |
829 | if (sig) gotsig = 1; |
1016 | *flag = 1; |
830 | if (async) gotasync = 1; |
|
|
831 | |
1017 | |
|
|
1018 | #if EV_USE_EVENTFD |
|
|
1019 | if (evfd >= 0) |
|
|
1020 | { |
|
|
1021 | uint64_t counter = 1; |
|
|
1022 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1023 | } |
|
|
1024 | else |
|
|
1025 | #endif |
832 | write (evpipe [1], &old_errno, 1); |
1026 | write (evpipe [1], &old_errno, 1); |
833 | |
1027 | |
834 | errno = old_errno; |
1028 | errno = old_errno; |
835 | } |
1029 | } |
836 | } |
1030 | } |
837 | |
1031 | |
838 | static void |
1032 | static void |
839 | pipecb (EV_P_ ev_io *iow, int revents) |
1033 | pipecb (EV_P_ ev_io *iow, int revents) |
840 | { |
1034 | { |
|
|
1035 | #if EV_USE_EVENTFD |
|
|
1036 | if (evfd >= 0) |
841 | { |
1037 | { |
842 | int dummy; |
1038 | uint64_t counter; |
|
|
1039 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1040 | } |
|
|
1041 | else |
|
|
1042 | #endif |
|
|
1043 | { |
|
|
1044 | char dummy; |
843 | read (evpipe [0], &dummy, 1); |
1045 | read (evpipe [0], &dummy, 1); |
844 | } |
1046 | } |
845 | |
1047 | |
846 | if (gotsig && ev_is_default_loop (EV_A)) |
1048 | if (gotsig && ev_is_default_loop (EV_A)) |
847 | { |
1049 | { |
848 | int signum; |
1050 | int signum; |
849 | gotsig = 0; |
1051 | gotsig = 0; |
… | |
… | |
870 | } |
1072 | } |
871 | |
1073 | |
872 | /*****************************************************************************/ |
1074 | /*****************************************************************************/ |
873 | |
1075 | |
874 | static void |
1076 | static void |
875 | sighandler (int signum) |
1077 | ev_sighandler (int signum) |
876 | { |
1078 | { |
877 | #if EV_MULTIPLICITY |
1079 | #if EV_MULTIPLICITY |
878 | struct ev_loop *loop = &default_loop_struct; |
1080 | struct ev_loop *loop = &default_loop_struct; |
879 | #endif |
1081 | #endif |
880 | |
1082 | |
881 | #if _WIN32 |
1083 | #if _WIN32 |
882 | signal (signum, sighandler); |
1084 | signal (signum, ev_sighandler); |
883 | #endif |
1085 | #endif |
884 | |
1086 | |
885 | signals [signum - 1].gotsig = 1; |
1087 | signals [signum - 1].gotsig = 1; |
886 | evpipe_write (EV_A_ 1, 0); |
1088 | evpipe_write (EV_A_ &gotsig); |
887 | } |
1089 | } |
888 | |
1090 | |
889 | void noinline |
1091 | void noinline |
890 | ev_feed_signal_event (EV_P_ int signum) |
1092 | ev_feed_signal_event (EV_P_ int signum) |
891 | { |
1093 | { |
… | |
… | |
917 | #ifndef WIFCONTINUED |
1119 | #ifndef WIFCONTINUED |
918 | # define WIFCONTINUED(status) 0 |
1120 | # define WIFCONTINUED(status) 0 |
919 | #endif |
1121 | #endif |
920 | |
1122 | |
921 | void inline_speed |
1123 | void inline_speed |
922 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1124 | child_reap (EV_P_ int chain, int pid, int status) |
923 | { |
1125 | { |
924 | ev_child *w; |
1126 | ev_child *w; |
925 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1127 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
926 | |
1128 | |
927 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1129 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
928 | { |
1130 | { |
929 | if ((w->pid == pid || !w->pid) |
1131 | if ((w->pid == pid || !w->pid) |
930 | && (!traced || (w->flags & 1))) |
1132 | && (!traced || (w->flags & 1))) |
931 | { |
1133 | { |
932 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1134 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
933 | w->rpid = pid; |
1135 | w->rpid = pid; |
934 | w->rstatus = status; |
1136 | w->rstatus = status; |
935 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1137 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
936 | } |
1138 | } |
937 | } |
1139 | } |
… | |
… | |
951 | if (!WCONTINUED |
1153 | if (!WCONTINUED |
952 | || errno != EINVAL |
1154 | || errno != EINVAL |
953 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1155 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
954 | return; |
1156 | return; |
955 | |
1157 | |
956 | /* make sure we are called again until all childs have been reaped */ |
1158 | /* make sure we are called again until all children have been reaped */ |
957 | /* we need to do it this way so that the callback gets called before we continue */ |
1159 | /* we need to do it this way so that the callback gets called before we continue */ |
958 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1160 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
959 | |
1161 | |
960 | child_reap (EV_A_ sw, pid, pid, status); |
1162 | child_reap (EV_A_ pid, pid, status); |
961 | if (EV_PID_HASHSIZE > 1) |
1163 | if (EV_PID_HASHSIZE > 1) |
962 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1164 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
963 | } |
1165 | } |
964 | |
1166 | |
965 | #endif |
1167 | #endif |
966 | |
1168 | |
967 | /*****************************************************************************/ |
1169 | /*****************************************************************************/ |
… | |
… | |
1110 | if (!(flags & EVFLAG_NOENV) |
1312 | if (!(flags & EVFLAG_NOENV) |
1111 | && !enable_secure () |
1313 | && !enable_secure () |
1112 | && getenv ("LIBEV_FLAGS")) |
1314 | && getenv ("LIBEV_FLAGS")) |
1113 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1315 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1114 | |
1316 | |
1115 | if (!(flags & 0x0000ffffUL)) |
1317 | if (!(flags & 0x0000ffffU)) |
1116 | flags |= ev_recommended_backends (); |
1318 | flags |= ev_recommended_backends (); |
1117 | |
1319 | |
1118 | #if EV_USE_PORT |
1320 | #if EV_USE_PORT |
1119 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1321 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1120 | #endif |
1322 | #endif |
… | |
… | |
1144 | if (ev_is_active (&pipeev)) |
1346 | if (ev_is_active (&pipeev)) |
1145 | { |
1347 | { |
1146 | ev_ref (EV_A); /* signal watcher */ |
1348 | ev_ref (EV_A); /* signal watcher */ |
1147 | ev_io_stop (EV_A_ &pipeev); |
1349 | ev_io_stop (EV_A_ &pipeev); |
1148 | |
1350 | |
1149 | close (evpipe [0]); evpipe [0] = 0; |
1351 | #if EV_USE_EVENTFD |
1150 | close (evpipe [1]); evpipe [1] = 0; |
1352 | if (evfd >= 0) |
|
|
1353 | close (evfd); |
|
|
1354 | #endif |
|
|
1355 | |
|
|
1356 | if (evpipe [0] >= 0) |
|
|
1357 | { |
|
|
1358 | close (evpipe [0]); |
|
|
1359 | close (evpipe [1]); |
|
|
1360 | } |
1151 | } |
1361 | } |
1152 | |
1362 | |
1153 | #if EV_USE_INOTIFY |
1363 | #if EV_USE_INOTIFY |
1154 | if (fs_fd >= 0) |
1364 | if (fs_fd >= 0) |
1155 | close (fs_fd); |
1365 | close (fs_fd); |
… | |
… | |
1200 | #endif |
1410 | #endif |
1201 | |
1411 | |
1202 | backend = 0; |
1412 | backend = 0; |
1203 | } |
1413 | } |
1204 | |
1414 | |
|
|
1415 | #if EV_USE_INOTIFY |
1205 | void inline_size infy_fork (EV_P); |
1416 | void inline_size infy_fork (EV_P); |
|
|
1417 | #endif |
1206 | |
1418 | |
1207 | void inline_size |
1419 | void inline_size |
1208 | loop_fork (EV_P) |
1420 | loop_fork (EV_P) |
1209 | { |
1421 | { |
1210 | #if EV_USE_PORT |
1422 | #if EV_USE_PORT |
… | |
… | |
1221 | #endif |
1433 | #endif |
1222 | |
1434 | |
1223 | if (ev_is_active (&pipeev)) |
1435 | if (ev_is_active (&pipeev)) |
1224 | { |
1436 | { |
1225 | /* this "locks" the handlers against writing to the pipe */ |
1437 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1438 | /* while we modify the fd vars */ |
|
|
1439 | gotsig = 1; |
|
|
1440 | #if EV_ASYNC_ENABLE |
1226 | gotsig = gotasync = 1; |
1441 | gotasync = 1; |
|
|
1442 | #endif |
1227 | |
1443 | |
1228 | ev_ref (EV_A); |
1444 | ev_ref (EV_A); |
1229 | ev_io_stop (EV_A_ &pipeev); |
1445 | ev_io_stop (EV_A_ &pipeev); |
|
|
1446 | |
|
|
1447 | #if EV_USE_EVENTFD |
|
|
1448 | if (evfd >= 0) |
|
|
1449 | close (evfd); |
|
|
1450 | #endif |
|
|
1451 | |
|
|
1452 | if (evpipe [0] >= 0) |
|
|
1453 | { |
1230 | close (evpipe [0]); |
1454 | close (evpipe [0]); |
1231 | close (evpipe [1]); |
1455 | close (evpipe [1]); |
|
|
1456 | } |
1232 | |
1457 | |
1233 | evpipe_init (EV_A); |
1458 | evpipe_init (EV_A); |
1234 | /* now iterate over everything, in case we missed something */ |
1459 | /* now iterate over everything, in case we missed something */ |
1235 | pipecb (EV_A_ &pipeev, EV_READ); |
1460 | pipecb (EV_A_ &pipeev, EV_READ); |
1236 | } |
1461 | } |
… | |
… | |
1264 | void |
1489 | void |
1265 | ev_loop_fork (EV_P) |
1490 | ev_loop_fork (EV_P) |
1266 | { |
1491 | { |
1267 | postfork = 1; /* must be in line with ev_default_fork */ |
1492 | postfork = 1; /* must be in line with ev_default_fork */ |
1268 | } |
1493 | } |
1269 | |
|
|
1270 | #endif |
1494 | #endif |
1271 | |
1495 | |
1272 | #if EV_MULTIPLICITY |
1496 | #if EV_MULTIPLICITY |
1273 | struct ev_loop * |
1497 | struct ev_loop * |
1274 | ev_default_loop_init (unsigned int flags) |
1498 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1355 | EV_CB_INVOKE (p->w, p->events); |
1579 | EV_CB_INVOKE (p->w, p->events); |
1356 | } |
1580 | } |
1357 | } |
1581 | } |
1358 | } |
1582 | } |
1359 | |
1583 | |
1360 | void inline_size |
|
|
1361 | timers_reify (EV_P) |
|
|
1362 | { |
|
|
1363 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1364 | { |
|
|
1365 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1366 | |
|
|
1367 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1368 | |
|
|
1369 | /* first reschedule or stop timer */ |
|
|
1370 | if (w->repeat) |
|
|
1371 | { |
|
|
1372 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1373 | |
|
|
1374 | ((WT)w)->at += w->repeat; |
|
|
1375 | if (((WT)w)->at < mn_now) |
|
|
1376 | ((WT)w)->at = mn_now; |
|
|
1377 | |
|
|
1378 | downheap (timers, timercnt, 0); |
|
|
1379 | } |
|
|
1380 | else |
|
|
1381 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1382 | |
|
|
1383 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1384 | } |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | #if EV_PERIODIC_ENABLE |
|
|
1388 | void inline_size |
|
|
1389 | periodics_reify (EV_P) |
|
|
1390 | { |
|
|
1391 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1392 | { |
|
|
1393 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1394 | |
|
|
1395 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1396 | |
|
|
1397 | /* first reschedule or stop timer */ |
|
|
1398 | if (w->reschedule_cb) |
|
|
1399 | { |
|
|
1400 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1401 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1402 | downheap (periodics, periodiccnt, 0); |
|
|
1403 | } |
|
|
1404 | else if (w->interval) |
|
|
1405 | { |
|
|
1406 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1407 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1408 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1409 | downheap (periodics, periodiccnt, 0); |
|
|
1410 | } |
|
|
1411 | else |
|
|
1412 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1413 | |
|
|
1414 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1415 | } |
|
|
1416 | } |
|
|
1417 | |
|
|
1418 | static void noinline |
|
|
1419 | periodics_reschedule (EV_P) |
|
|
1420 | { |
|
|
1421 | int i; |
|
|
1422 | |
|
|
1423 | /* adjust periodics after time jump */ |
|
|
1424 | for (i = 0; i < periodiccnt; ++i) |
|
|
1425 | { |
|
|
1426 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1427 | |
|
|
1428 | if (w->reschedule_cb) |
|
|
1429 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1430 | else if (w->interval) |
|
|
1431 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1432 | } |
|
|
1433 | |
|
|
1434 | /* now rebuild the heap */ |
|
|
1435 | for (i = periodiccnt >> 1; i--; ) |
|
|
1436 | downheap (periodics, periodiccnt, i); |
|
|
1437 | } |
|
|
1438 | #endif |
|
|
1439 | |
|
|
1440 | #if EV_IDLE_ENABLE |
1584 | #if EV_IDLE_ENABLE |
1441 | void inline_size |
1585 | void inline_size |
1442 | idle_reify (EV_P) |
1586 | idle_reify (EV_P) |
1443 | { |
1587 | { |
1444 | if (expect_false (idleall)) |
1588 | if (expect_false (idleall)) |
… | |
… | |
1455 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1599 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1456 | break; |
1600 | break; |
1457 | } |
1601 | } |
1458 | } |
1602 | } |
1459 | } |
1603 | } |
|
|
1604 | } |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | void inline_size |
|
|
1608 | timers_reify (EV_P) |
|
|
1609 | { |
|
|
1610 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1611 | { |
|
|
1612 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1613 | |
|
|
1614 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1615 | |
|
|
1616 | /* first reschedule or stop timer */ |
|
|
1617 | if (w->repeat) |
|
|
1618 | { |
|
|
1619 | ev_at (w) += w->repeat; |
|
|
1620 | if (ev_at (w) < mn_now) |
|
|
1621 | ev_at (w) = mn_now; |
|
|
1622 | |
|
|
1623 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1624 | |
|
|
1625 | ANHE_at_set (timers [HEAP0]); |
|
|
1626 | downheap (timers, timercnt, HEAP0); |
|
|
1627 | } |
|
|
1628 | else |
|
|
1629 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1630 | |
|
|
1631 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1632 | } |
|
|
1633 | } |
|
|
1634 | |
|
|
1635 | #if EV_PERIODIC_ENABLE |
|
|
1636 | void inline_size |
|
|
1637 | periodics_reify (EV_P) |
|
|
1638 | { |
|
|
1639 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1640 | { |
|
|
1641 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1642 | |
|
|
1643 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1644 | |
|
|
1645 | /* first reschedule or stop timer */ |
|
|
1646 | if (w->reschedule_cb) |
|
|
1647 | { |
|
|
1648 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1649 | |
|
|
1650 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1651 | |
|
|
1652 | ANHE_at_set (periodics [HEAP0]); |
|
|
1653 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1654 | } |
|
|
1655 | else if (w->interval) |
|
|
1656 | { |
|
|
1657 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1658 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1659 | /* this might happen because of floating point inexactness */ |
|
|
1660 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1661 | { |
|
|
1662 | ev_at (w) += w->interval; |
|
|
1663 | |
|
|
1664 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1665 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1666 | /* has effectively asked to get triggered more often than possible */ |
|
|
1667 | if (ev_at (w) < ev_rt_now) |
|
|
1668 | ev_at (w) = ev_rt_now; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | ANHE_at_set (periodics [HEAP0]); |
|
|
1672 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1673 | } |
|
|
1674 | else |
|
|
1675 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1676 | |
|
|
1677 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1678 | } |
|
|
1679 | } |
|
|
1680 | |
|
|
1681 | static void noinline |
|
|
1682 | periodics_reschedule (EV_P) |
|
|
1683 | { |
|
|
1684 | int i; |
|
|
1685 | |
|
|
1686 | /* adjust periodics after time jump */ |
|
|
1687 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1688 | { |
|
|
1689 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1690 | |
|
|
1691 | if (w->reschedule_cb) |
|
|
1692 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1693 | else if (w->interval) |
|
|
1694 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1695 | |
|
|
1696 | ANHE_at_set (periodics [i]); |
|
|
1697 | } |
|
|
1698 | |
|
|
1699 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
|
|
1700 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
|
|
1701 | for (i = 0; i < periodiccnt; ++i) |
|
|
1702 | upheap (periodics, i + HEAP0); |
1460 | } |
1703 | } |
1461 | #endif |
1704 | #endif |
1462 | |
1705 | |
1463 | void inline_speed |
1706 | void inline_speed |
1464 | time_update (EV_P_ ev_tstamp max_block) |
1707 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1493 | */ |
1736 | */ |
1494 | for (i = 4; --i; ) |
1737 | for (i = 4; --i; ) |
1495 | { |
1738 | { |
1496 | rtmn_diff = ev_rt_now - mn_now; |
1739 | rtmn_diff = ev_rt_now - mn_now; |
1497 | |
1740 | |
1498 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1741 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1499 | return; /* all is well */ |
1742 | return; /* all is well */ |
1500 | |
1743 | |
1501 | ev_rt_now = ev_time (); |
1744 | ev_rt_now = ev_time (); |
1502 | mn_now = get_clock (); |
1745 | mn_now = get_clock (); |
1503 | now_floor = mn_now; |
1746 | now_floor = mn_now; |
… | |
… | |
1519 | #if EV_PERIODIC_ENABLE |
1762 | #if EV_PERIODIC_ENABLE |
1520 | periodics_reschedule (EV_A); |
1763 | periodics_reschedule (EV_A); |
1521 | #endif |
1764 | #endif |
1522 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1765 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1523 | for (i = 0; i < timercnt; ++i) |
1766 | for (i = 0; i < timercnt; ++i) |
|
|
1767 | { |
|
|
1768 | ANHE *he = timers + i + HEAP0; |
1524 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1769 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1770 | ANHE_at_set (*he); |
|
|
1771 | } |
1525 | } |
1772 | } |
1526 | |
1773 | |
1527 | mn_now = ev_rt_now; |
1774 | mn_now = ev_rt_now; |
1528 | } |
1775 | } |
1529 | } |
1776 | } |
… | |
… | |
1543 | static int loop_done; |
1790 | static int loop_done; |
1544 | |
1791 | |
1545 | void |
1792 | void |
1546 | ev_loop (EV_P_ int flags) |
1793 | ev_loop (EV_P_ int flags) |
1547 | { |
1794 | { |
1548 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1795 | loop_done = EVUNLOOP_CANCEL; |
1549 | ? EVUNLOOP_ONE |
|
|
1550 | : EVUNLOOP_CANCEL; |
|
|
1551 | |
1796 | |
1552 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1797 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1553 | |
1798 | |
1554 | do |
1799 | do |
1555 | { |
1800 | { |
… | |
… | |
1601 | |
1846 | |
1602 | waittime = MAX_BLOCKTIME; |
1847 | waittime = MAX_BLOCKTIME; |
1603 | |
1848 | |
1604 | if (timercnt) |
1849 | if (timercnt) |
1605 | { |
1850 | { |
1606 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1851 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1607 | if (waittime > to) waittime = to; |
1852 | if (waittime > to) waittime = to; |
1608 | } |
1853 | } |
1609 | |
1854 | |
1610 | #if EV_PERIODIC_ENABLE |
1855 | #if EV_PERIODIC_ENABLE |
1611 | if (periodiccnt) |
1856 | if (periodiccnt) |
1612 | { |
1857 | { |
1613 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1858 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1614 | if (waittime > to) waittime = to; |
1859 | if (waittime > to) waittime = to; |
1615 | } |
1860 | } |
1616 | #endif |
1861 | #endif |
1617 | |
1862 | |
1618 | if (expect_false (waittime < timeout_blocktime)) |
1863 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1651 | /* queue check watchers, to be executed first */ |
1896 | /* queue check watchers, to be executed first */ |
1652 | if (expect_false (checkcnt)) |
1897 | if (expect_false (checkcnt)) |
1653 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1898 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1654 | |
1899 | |
1655 | call_pending (EV_A); |
1900 | call_pending (EV_A); |
1656 | |
|
|
1657 | } |
1901 | } |
1658 | while (expect_true (activecnt && !loop_done)); |
1902 | while (expect_true ( |
|
|
1903 | activecnt |
|
|
1904 | && !loop_done |
|
|
1905 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1906 | )); |
1659 | |
1907 | |
1660 | if (loop_done == EVUNLOOP_ONE) |
1908 | if (loop_done == EVUNLOOP_ONE) |
1661 | loop_done = EVUNLOOP_CANCEL; |
1909 | loop_done = EVUNLOOP_CANCEL; |
1662 | } |
1910 | } |
1663 | |
1911 | |
… | |
… | |
1767 | { |
2015 | { |
1768 | clear_pending (EV_A_ (W)w); |
2016 | clear_pending (EV_A_ (W)w); |
1769 | if (expect_false (!ev_is_active (w))) |
2017 | if (expect_false (!ev_is_active (w))) |
1770 | return; |
2018 | return; |
1771 | |
2019 | |
1772 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2020 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1773 | |
2021 | |
1774 | wlist_del (&anfds[w->fd].head, (WL)w); |
2022 | wlist_del (&anfds[w->fd].head, (WL)w); |
1775 | ev_stop (EV_A_ (W)w); |
2023 | ev_stop (EV_A_ (W)w); |
1776 | |
2024 | |
1777 | fd_change (EV_A_ w->fd, 1); |
2025 | fd_change (EV_A_ w->fd, 1); |
… | |
… | |
1781 | ev_timer_start (EV_P_ ev_timer *w) |
2029 | ev_timer_start (EV_P_ ev_timer *w) |
1782 | { |
2030 | { |
1783 | if (expect_false (ev_is_active (w))) |
2031 | if (expect_false (ev_is_active (w))) |
1784 | return; |
2032 | return; |
1785 | |
2033 | |
1786 | ((WT)w)->at += mn_now; |
2034 | ev_at (w) += mn_now; |
1787 | |
2035 | |
1788 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2036 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1789 | |
2037 | |
1790 | ev_start (EV_A_ (W)w, ++timercnt); |
2038 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
1791 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2039 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1792 | timers [timercnt - 1] = (WT)w; |
2040 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1793 | upheap (timers, timercnt - 1); |
2041 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2042 | upheap (timers, ev_active (w)); |
1794 | |
2043 | |
1795 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2044 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1796 | } |
2045 | } |
1797 | |
2046 | |
1798 | void noinline |
2047 | void noinline |
1799 | ev_timer_stop (EV_P_ ev_timer *w) |
2048 | ev_timer_stop (EV_P_ ev_timer *w) |
1800 | { |
2049 | { |
1801 | clear_pending (EV_A_ (W)w); |
2050 | clear_pending (EV_A_ (W)w); |
1802 | if (expect_false (!ev_is_active (w))) |
2051 | if (expect_false (!ev_is_active (w))) |
1803 | return; |
2052 | return; |
1804 | |
2053 | |
1805 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1806 | |
|
|
1807 | { |
2054 | { |
1808 | int active = ((W)w)->active; |
2055 | int active = ev_active (w); |
1809 | |
2056 | |
|
|
2057 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2058 | |
1810 | if (expect_true (--active < --timercnt)) |
2059 | if (expect_true (active < timercnt + HEAP0 - 1)) |
1811 | { |
2060 | { |
1812 | timers [active] = timers [timercnt]; |
2061 | timers [active] = timers [timercnt + HEAP0 - 1]; |
1813 | adjustheap (timers, timercnt, active); |
2062 | adjustheap (timers, timercnt, active); |
1814 | } |
2063 | } |
|
|
2064 | |
|
|
2065 | --timercnt; |
1815 | } |
2066 | } |
1816 | |
2067 | |
1817 | ((WT)w)->at -= mn_now; |
2068 | ev_at (w) -= mn_now; |
1818 | |
2069 | |
1819 | ev_stop (EV_A_ (W)w); |
2070 | ev_stop (EV_A_ (W)w); |
1820 | } |
2071 | } |
1821 | |
2072 | |
1822 | void noinline |
2073 | void noinline |
… | |
… | |
1824 | { |
2075 | { |
1825 | if (ev_is_active (w)) |
2076 | if (ev_is_active (w)) |
1826 | { |
2077 | { |
1827 | if (w->repeat) |
2078 | if (w->repeat) |
1828 | { |
2079 | { |
1829 | ((WT)w)->at = mn_now + w->repeat; |
2080 | ev_at (w) = mn_now + w->repeat; |
|
|
2081 | ANHE_at_set (timers [ev_active (w)]); |
1830 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2082 | adjustheap (timers, timercnt, ev_active (w)); |
1831 | } |
2083 | } |
1832 | else |
2084 | else |
1833 | ev_timer_stop (EV_A_ w); |
2085 | ev_timer_stop (EV_A_ w); |
1834 | } |
2086 | } |
1835 | else if (w->repeat) |
2087 | else if (w->repeat) |
1836 | { |
2088 | { |
1837 | w->at = w->repeat; |
2089 | ev_at (w) = w->repeat; |
1838 | ev_timer_start (EV_A_ w); |
2090 | ev_timer_start (EV_A_ w); |
1839 | } |
2091 | } |
1840 | } |
2092 | } |
1841 | |
2093 | |
1842 | #if EV_PERIODIC_ENABLE |
2094 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1845 | { |
2097 | { |
1846 | if (expect_false (ev_is_active (w))) |
2098 | if (expect_false (ev_is_active (w))) |
1847 | return; |
2099 | return; |
1848 | |
2100 | |
1849 | if (w->reschedule_cb) |
2101 | if (w->reschedule_cb) |
1850 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2102 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1851 | else if (w->interval) |
2103 | else if (w->interval) |
1852 | { |
2104 | { |
1853 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2105 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1854 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2106 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1855 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2107 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1856 | } |
2108 | } |
1857 | else |
2109 | else |
1858 | ((WT)w)->at = w->offset; |
2110 | ev_at (w) = w->offset; |
1859 | |
2111 | |
1860 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2112 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1861 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2113 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1862 | periodics [periodiccnt - 1] = (WT)w; |
2114 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1863 | upheap (periodics, periodiccnt - 1); |
2115 | ANHE_at_set (periodics [ev_active (w)]); |
|
|
2116 | upheap (periodics, ev_active (w)); |
1864 | |
2117 | |
1865 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2118 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1866 | } |
2119 | } |
1867 | |
2120 | |
1868 | void noinline |
2121 | void noinline |
1869 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2122 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1870 | { |
2123 | { |
1871 | clear_pending (EV_A_ (W)w); |
2124 | clear_pending (EV_A_ (W)w); |
1872 | if (expect_false (!ev_is_active (w))) |
2125 | if (expect_false (!ev_is_active (w))) |
1873 | return; |
2126 | return; |
1874 | |
2127 | |
1875 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1876 | |
|
|
1877 | { |
2128 | { |
1878 | int active = ((W)w)->active; |
2129 | int active = ev_active (w); |
1879 | |
2130 | |
|
|
2131 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2132 | |
1880 | if (expect_true (--active < --periodiccnt)) |
2133 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1881 | { |
2134 | { |
1882 | periodics [active] = periodics [periodiccnt]; |
2135 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1883 | adjustheap (periodics, periodiccnt, active); |
2136 | adjustheap (periodics, periodiccnt, active); |
1884 | } |
2137 | } |
|
|
2138 | |
|
|
2139 | --periodiccnt; |
1885 | } |
2140 | } |
1886 | |
2141 | |
1887 | ev_stop (EV_A_ (W)w); |
2142 | ev_stop (EV_A_ (W)w); |
1888 | } |
2143 | } |
1889 | |
2144 | |
… | |
… | |
1931 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2186 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1932 | |
2187 | |
1933 | if (!((WL)w)->next) |
2188 | if (!((WL)w)->next) |
1934 | { |
2189 | { |
1935 | #if _WIN32 |
2190 | #if _WIN32 |
1936 | signal (w->signum, sighandler); |
2191 | signal (w->signum, ev_sighandler); |
1937 | #else |
2192 | #else |
1938 | struct sigaction sa; |
2193 | struct sigaction sa; |
1939 | sa.sa_handler = sighandler; |
2194 | sa.sa_handler = ev_sighandler; |
1940 | sigfillset (&sa.sa_mask); |
2195 | sigfillset (&sa.sa_mask); |
1941 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2196 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1942 | sigaction (w->signum, &sa, 0); |
2197 | sigaction (w->signum, &sa, 0); |
1943 | #endif |
2198 | #endif |
1944 | } |
2199 | } |
… | |
… | |
2005 | if (w->wd < 0) |
2260 | if (w->wd < 0) |
2006 | { |
2261 | { |
2007 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2262 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2008 | |
2263 | |
2009 | /* monitor some parent directory for speedup hints */ |
2264 | /* monitor some parent directory for speedup hints */ |
|
|
2265 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2266 | /* but an efficiency issue only */ |
2010 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2267 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2011 | { |
2268 | { |
2012 | char path [4096]; |
2269 | char path [4096]; |
2013 | strcpy (path, w->path); |
2270 | strcpy (path, w->path); |
2014 | |
2271 | |
… | |
… | |
2259 | clear_pending (EV_A_ (W)w); |
2516 | clear_pending (EV_A_ (W)w); |
2260 | if (expect_false (!ev_is_active (w))) |
2517 | if (expect_false (!ev_is_active (w))) |
2261 | return; |
2518 | return; |
2262 | |
2519 | |
2263 | { |
2520 | { |
2264 | int active = ((W)w)->active; |
2521 | int active = ev_active (w); |
2265 | |
2522 | |
2266 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2523 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2267 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2524 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2268 | |
2525 | |
2269 | ev_stop (EV_A_ (W)w); |
2526 | ev_stop (EV_A_ (W)w); |
2270 | --idleall; |
2527 | --idleall; |
2271 | } |
2528 | } |
2272 | } |
2529 | } |
… | |
… | |
2289 | clear_pending (EV_A_ (W)w); |
2546 | clear_pending (EV_A_ (W)w); |
2290 | if (expect_false (!ev_is_active (w))) |
2547 | if (expect_false (!ev_is_active (w))) |
2291 | return; |
2548 | return; |
2292 | |
2549 | |
2293 | { |
2550 | { |
2294 | int active = ((W)w)->active; |
2551 | int active = ev_active (w); |
|
|
2552 | |
2295 | prepares [active - 1] = prepares [--preparecnt]; |
2553 | prepares [active - 1] = prepares [--preparecnt]; |
2296 | ((W)prepares [active - 1])->active = active; |
2554 | ev_active (prepares [active - 1]) = active; |
2297 | } |
2555 | } |
2298 | |
2556 | |
2299 | ev_stop (EV_A_ (W)w); |
2557 | ev_stop (EV_A_ (W)w); |
2300 | } |
2558 | } |
2301 | |
2559 | |
… | |
… | |
2316 | clear_pending (EV_A_ (W)w); |
2574 | clear_pending (EV_A_ (W)w); |
2317 | if (expect_false (!ev_is_active (w))) |
2575 | if (expect_false (!ev_is_active (w))) |
2318 | return; |
2576 | return; |
2319 | |
2577 | |
2320 | { |
2578 | { |
2321 | int active = ((W)w)->active; |
2579 | int active = ev_active (w); |
|
|
2580 | |
2322 | checks [active - 1] = checks [--checkcnt]; |
2581 | checks [active - 1] = checks [--checkcnt]; |
2323 | ((W)checks [active - 1])->active = active; |
2582 | ev_active (checks [active - 1]) = active; |
2324 | } |
2583 | } |
2325 | |
2584 | |
2326 | ev_stop (EV_A_ (W)w); |
2585 | ev_stop (EV_A_ (W)w); |
2327 | } |
2586 | } |
2328 | |
2587 | |
… | |
… | |
2424 | clear_pending (EV_A_ (W)w); |
2683 | clear_pending (EV_A_ (W)w); |
2425 | if (expect_false (!ev_is_active (w))) |
2684 | if (expect_false (!ev_is_active (w))) |
2426 | return; |
2685 | return; |
2427 | |
2686 | |
2428 | { |
2687 | { |
2429 | int active = ((W)w)->active; |
2688 | int active = ev_active (w); |
|
|
2689 | |
2430 | forks [active - 1] = forks [--forkcnt]; |
2690 | forks [active - 1] = forks [--forkcnt]; |
2431 | ((W)forks [active - 1])->active = active; |
2691 | ev_active (forks [active - 1]) = active; |
2432 | } |
2692 | } |
2433 | |
2693 | |
2434 | ev_stop (EV_A_ (W)w); |
2694 | ev_stop (EV_A_ (W)w); |
2435 | } |
2695 | } |
2436 | #endif |
2696 | #endif |
… | |
… | |
2455 | clear_pending (EV_A_ (W)w); |
2715 | clear_pending (EV_A_ (W)w); |
2456 | if (expect_false (!ev_is_active (w))) |
2716 | if (expect_false (!ev_is_active (w))) |
2457 | return; |
2717 | return; |
2458 | |
2718 | |
2459 | { |
2719 | { |
2460 | int active = ((W)w)->active; |
2720 | int active = ev_active (w); |
|
|
2721 | |
2461 | asyncs [active - 1] = asyncs [--asynccnt]; |
2722 | asyncs [active - 1] = asyncs [--asynccnt]; |
2462 | ((W)asyncs [active - 1])->active = active; |
2723 | ev_active (asyncs [active - 1]) = active; |
2463 | } |
2724 | } |
2464 | |
2725 | |
2465 | ev_stop (EV_A_ (W)w); |
2726 | ev_stop (EV_A_ (W)w); |
2466 | } |
2727 | } |
2467 | |
2728 | |
2468 | void |
2729 | void |
2469 | ev_async_send (EV_P_ ev_async *w) |
2730 | ev_async_send (EV_P_ ev_async *w) |
2470 | { |
2731 | { |
2471 | w->sent = 1; |
2732 | w->sent = 1; |
2472 | evpipe_write (EV_A_ 0, 1); |
2733 | evpipe_write (EV_A_ &gotasync); |
2473 | } |
2734 | } |
2474 | #endif |
2735 | #endif |
2475 | |
2736 | |
2476 | /*****************************************************************************/ |
2737 | /*****************************************************************************/ |
2477 | |
2738 | |