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> |
… | |
… | |
145 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
146 | # include <sys/time.h> |
155 | # include <sys/time.h> |
147 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
148 | # include <unistd.h> |
157 | # include <unistd.h> |
149 | #else |
158 | #else |
|
|
159 | # include <io.h> |
150 | # define WIN32_LEAN_AND_MEAN |
160 | # define WIN32_LEAN_AND_MEAN |
151 | # include <windows.h> |
161 | # include <windows.h> |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
154 | # endif |
164 | # endif |
155 | #endif |
165 | #endif |
156 | |
166 | |
157 | /**/ |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
158 | |
168 | |
159 | #ifndef EV_USE_MONOTONIC |
169 | #ifndef EV_USE_MONOTONIC |
|
|
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
171 | # define EV_USE_MONOTONIC 1 |
|
|
172 | # else |
160 | # define EV_USE_MONOTONIC 0 |
173 | # define EV_USE_MONOTONIC 0 |
|
|
174 | # endif |
161 | #endif |
175 | #endif |
162 | |
176 | |
163 | #ifndef EV_USE_REALTIME |
177 | #ifndef EV_USE_REALTIME |
164 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
165 | #endif |
179 | #endif |
166 | |
180 | |
167 | #ifndef EV_USE_NANOSLEEP |
181 | #ifndef EV_USE_NANOSLEEP |
|
|
182 | # if _POSIX_C_SOURCE >= 199309L |
|
|
183 | # define EV_USE_NANOSLEEP 1 |
|
|
184 | # else |
168 | # define EV_USE_NANOSLEEP 0 |
185 | # define EV_USE_NANOSLEEP 0 |
|
|
186 | # endif |
169 | #endif |
187 | #endif |
170 | |
188 | |
171 | #ifndef EV_USE_SELECT |
189 | #ifndef EV_USE_SELECT |
172 | # define EV_USE_SELECT 1 |
190 | # define EV_USE_SELECT 1 |
173 | #endif |
191 | #endif |
… | |
… | |
179 | # define EV_USE_POLL 1 |
197 | # define EV_USE_POLL 1 |
180 | # endif |
198 | # endif |
181 | #endif |
199 | #endif |
182 | |
200 | |
183 | #ifndef EV_USE_EPOLL |
201 | #ifndef EV_USE_EPOLL |
|
|
202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
203 | # define EV_USE_EPOLL 1 |
|
|
204 | # else |
184 | # define EV_USE_EPOLL 0 |
205 | # define EV_USE_EPOLL 0 |
|
|
206 | # endif |
185 | #endif |
207 | #endif |
186 | |
208 | |
187 | #ifndef EV_USE_KQUEUE |
209 | #ifndef EV_USE_KQUEUE |
188 | # define EV_USE_KQUEUE 0 |
210 | # define EV_USE_KQUEUE 0 |
189 | #endif |
211 | #endif |
… | |
… | |
191 | #ifndef EV_USE_PORT |
213 | #ifndef EV_USE_PORT |
192 | # define EV_USE_PORT 0 |
214 | # define EV_USE_PORT 0 |
193 | #endif |
215 | #endif |
194 | |
216 | |
195 | #ifndef EV_USE_INOTIFY |
217 | #ifndef EV_USE_INOTIFY |
|
|
218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
219 | # define EV_USE_INOTIFY 1 |
|
|
220 | # else |
196 | # define EV_USE_INOTIFY 0 |
221 | # define EV_USE_INOTIFY 0 |
|
|
222 | # endif |
197 | #endif |
223 | #endif |
198 | |
224 | |
199 | #ifndef EV_PID_HASHSIZE |
225 | #ifndef EV_PID_HASHSIZE |
200 | # if EV_MINIMAL |
226 | # if EV_MINIMAL |
201 | # define EV_PID_HASHSIZE 1 |
227 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
210 | # else |
236 | # else |
211 | # define EV_INOTIFY_HASHSIZE 16 |
237 | # define EV_INOTIFY_HASHSIZE 16 |
212 | # endif |
238 | # endif |
213 | #endif |
239 | #endif |
214 | |
240 | |
215 | /**/ |
241 | #ifndef EV_USE_EVENTFD |
|
|
242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
243 | # define EV_USE_EVENTFD 1 |
|
|
244 | # else |
|
|
245 | # define EV_USE_EVENTFD 0 |
|
|
246 | # endif |
|
|
247 | #endif |
|
|
248 | |
|
|
249 | #if 0 /* debugging */ |
|
|
250 | # define EV_VERIFY 3 |
|
|
251 | # define EV_USE_4HEAP 1 |
|
|
252 | # define EV_HEAP_CACHE_AT 1 |
|
|
253 | #endif |
|
|
254 | |
|
|
255 | #ifndef EV_VERIFY |
|
|
256 | # define EV_VERIFY !EV_MINIMAL |
|
|
257 | #endif |
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|
258 | |
|
|
259 | #ifndef EV_USE_4HEAP |
|
|
260 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
261 | #endif |
|
|
262 | |
|
|
263 | #ifndef EV_HEAP_CACHE_AT |
|
|
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
265 | #endif |
|
|
266 | |
|
|
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
216 | |
268 | |
217 | #ifndef CLOCK_MONOTONIC |
269 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
271 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
272 | #endif |
… | |
… | |
241 | |
293 | |
242 | #if EV_SELECT_IS_WINSOCKET |
294 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
295 | # include <winsock.h> |
244 | #endif |
296 | #endif |
245 | |
297 | |
|
|
298 | #if EV_USE_EVENTFD |
|
|
299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
300 | # include <stdint.h> |
|
|
301 | # ifdef __cplusplus |
|
|
302 | extern "C" { |
|
|
303 | # endif |
|
|
304 | int eventfd (unsigned int initval, int flags); |
|
|
305 | # ifdef __cplusplus |
|
|
306 | } |
|
|
307 | # endif |
|
|
308 | #endif |
|
|
309 | |
246 | /**/ |
310 | /**/ |
|
|
311 | |
|
|
312 | #if EV_VERIFY >= 3 |
|
|
313 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
314 | #else |
|
|
315 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
316 | #endif |
247 | |
317 | |
248 | /* |
318 | /* |
249 | * This is used to avoid floating point rounding problems. |
319 | * This is used to avoid floating point rounding problems. |
250 | * It is added to ev_rt_now when scheduling periodics |
320 | * It is added to ev_rt_now when scheduling periodics |
251 | * to ensure progress, time-wise, even when rounding |
321 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
333 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
264 | # define noinline __attribute__ ((noinline)) |
334 | # define noinline __attribute__ ((noinline)) |
265 | #else |
335 | #else |
266 | # define expect(expr,value) (expr) |
336 | # define expect(expr,value) (expr) |
267 | # define noinline |
337 | # define noinline |
268 | # if __STDC_VERSION__ < 199901L |
338 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
269 | # define inline |
339 | # define inline |
270 | # endif |
340 | # endif |
271 | #endif |
341 | #endif |
272 | |
342 | |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
343 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
288 | |
358 | |
289 | typedef ev_watcher *W; |
359 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
360 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
361 | typedef ev_watcher_time *WT; |
292 | |
362 | |
|
|
363 | #define ev_active(w) ((W)(w))->active |
|
|
364 | #define ev_at(w) ((WT)(w))->at |
|
|
365 | |
293 | #if EV_USE_MONOTONIC |
366 | #if EV_USE_MONOTONIC |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
367 | /* 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 */ |
368 | /* giving it a reasonably high chance of working on typical architetcures */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
297 | #endif |
370 | #endif |
298 | |
371 | |
299 | #ifdef _WIN32 |
372 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
373 | # include "ev_win32.c" |
301 | #endif |
374 | #endif |
… | |
… | |
323 | perror (msg); |
396 | perror (msg); |
324 | abort (); |
397 | abort (); |
325 | } |
398 | } |
326 | } |
399 | } |
327 | |
400 | |
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|
401 | static void * |
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|
402 | ev_realloc_emul (void *ptr, long size) |
|
|
403 | { |
|
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404 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
405 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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406 | * the single unix specification, so work around them here. |
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407 | */ |
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408 | |
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409 | if (size) |
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410 | return realloc (ptr, size); |
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411 | |
|
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412 | free (ptr); |
|
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413 | return 0; |
|
|
414 | } |
|
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415 | |
328 | static void *(*alloc)(void *ptr, long size); |
416 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
417 | |
330 | void |
418 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
419 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
420 | { |
333 | alloc = cb; |
421 | alloc = cb; |
334 | } |
422 | } |
335 | |
423 | |
336 | inline_speed void * |
424 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
425 | ev_realloc (void *ptr, long size) |
338 | { |
426 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
427 | ptr = alloc (ptr, size); |
340 | |
428 | |
341 | if (!ptr && size) |
429 | if (!ptr && size) |
342 | { |
430 | { |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
431 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
344 | abort (); |
432 | abort (); |
… | |
… | |
367 | W w; |
455 | W w; |
368 | int events; |
456 | int events; |
369 | } ANPENDING; |
457 | } ANPENDING; |
370 | |
458 | |
371 | #if EV_USE_INOTIFY |
459 | #if EV_USE_INOTIFY |
|
|
460 | /* hash table entry per inotify-id */ |
372 | typedef struct |
461 | typedef struct |
373 | { |
462 | { |
374 | WL head; |
463 | WL head; |
375 | } ANFS; |
464 | } ANFS; |
|
|
465 | #endif |
|
|
466 | |
|
|
467 | /* Heap Entry */ |
|
|
468 | #if EV_HEAP_CACHE_AT |
|
|
469 | typedef struct { |
|
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470 | ev_tstamp at; |
|
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471 | WT w; |
|
|
472 | } ANHE; |
|
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473 | |
|
|
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
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475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
477 | #else |
|
|
478 | typedef WT ANHE; |
|
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479 | |
|
|
480 | #define ANHE_w(he) (he) |
|
|
481 | #define ANHE_at(he) (he)->at |
|
|
482 | #define ANHE_at_cache(he) |
376 | #endif |
483 | #endif |
377 | |
484 | |
378 | #if EV_MULTIPLICITY |
485 | #if EV_MULTIPLICITY |
379 | |
486 | |
380 | struct ev_loop |
487 | struct ev_loop |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
558 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
559 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
560 | |
454 | nanosleep (&ts, 0); |
561 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
562 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
563 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
564 | #else |
458 | struct timeval tv; |
565 | struct timeval tv; |
459 | |
566 | |
460 | tv.tv_sec = (time_t)delay; |
567 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
462 | |
569 | |
|
|
570 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
571 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
572 | /* by older ones */ |
463 | select (0, 0, 0, 0, &tv); |
573 | select (0, 0, 0, 0, &tv); |
464 | #endif |
574 | #endif |
465 | } |
575 | } |
466 | } |
576 | } |
467 | |
577 | |
468 | /*****************************************************************************/ |
578 | /*****************************************************************************/ |
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579 | |
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580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
469 | |
581 | |
470 | int inline_size |
582 | int inline_size |
471 | array_nextsize (int elem, int cur, int cnt) |
583 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
584 | { |
473 | int ncur = cur + 1; |
585 | int ncur = cur + 1; |
474 | |
586 | |
475 | do |
587 | do |
476 | ncur <<= 1; |
588 | ncur <<= 1; |
477 | while (cnt > ncur); |
589 | while (cnt > ncur); |
478 | |
590 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
591 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
592 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
593 | { |
482 | ncur *= elem; |
594 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
595 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
596 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
597 | ncur /= elem; |
486 | } |
598 | } |
487 | |
599 | |
488 | return ncur; |
600 | return ncur; |
… | |
… | |
599 | events |= (unsigned char)w->events; |
711 | events |= (unsigned char)w->events; |
600 | |
712 | |
601 | #if EV_SELECT_IS_WINSOCKET |
713 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
714 | if (events) |
603 | { |
715 | { |
604 | unsigned long argp; |
716 | unsigned long arg; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
607 | #else |
719 | #else |
608 | anfd->handle = _get_osfhandle (fd); |
720 | anfd->handle = _get_osfhandle (fd); |
609 | #endif |
721 | #endif |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
611 | } |
723 | } |
612 | #endif |
724 | #endif |
613 | |
725 | |
614 | { |
726 | { |
615 | unsigned char o_events = anfd->events; |
727 | unsigned char o_events = anfd->events; |
… | |
… | |
668 | { |
780 | { |
669 | int fd; |
781 | int fd; |
670 | |
782 | |
671 | for (fd = 0; fd < anfdmax; ++fd) |
783 | for (fd = 0; fd < anfdmax; ++fd) |
672 | if (anfds [fd].events) |
784 | if (anfds [fd].events) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
785 | if (!fd_valid (fd) && errno == EBADF) |
674 | fd_kill (EV_A_ fd); |
786 | fd_kill (EV_A_ fd); |
675 | } |
787 | } |
676 | |
788 | |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
789 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
678 | static void noinline |
790 | static void noinline |
… | |
… | |
702 | } |
814 | } |
703 | } |
815 | } |
704 | |
816 | |
705 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
706 | |
818 | |
|
|
819 | /* |
|
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820 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
821 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
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|
822 | * the branching factor of the d-tree. |
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|
823 | */ |
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824 | |
|
|
825 | /* |
|
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826 | * at the moment we allow libev the luxury of two heaps, |
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|
827 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
828 | * which is more cache-efficient. |
|
|
829 | * the difference is about 5% with 50000+ watchers. |
|
|
830 | */ |
|
|
831 | #if EV_USE_4HEAP |
|
|
832 | |
|
|
833 | #define DHEAP 4 |
|
|
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
837 | |
|
|
838 | /* away from the root */ |
707 | void inline_speed |
839 | void inline_speed |
708 | upheap (WT *heap, int k) |
840 | downheap (ANHE *heap, int N, int k) |
709 | { |
841 | { |
710 | WT w = heap [k]; |
842 | ANHE he = heap [k]; |
|
|
843 | ANHE *E = heap + N + HEAP0; |
711 | |
844 | |
712 | while (k) |
845 | for (;;) |
713 | { |
846 | { |
714 | int p = (k - 1) >> 1; |
847 | ev_tstamp minat; |
|
|
848 | ANHE *minpos; |
|
|
849 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
715 | |
850 | |
716 | if (heap [p]->at <= w->at) |
851 | /* find minimum child */ |
|
|
852 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
853 | { |
|
|
854 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
855 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
856 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
857 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
858 | } |
|
|
859 | else if (pos < E) |
|
|
860 | { |
|
|
861 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
862 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
863 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
864 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
865 | } |
|
|
866 | else |
717 | break; |
867 | break; |
718 | |
868 | |
|
|
869 | if (ANHE_at (he) <= minat) |
|
|
870 | break; |
|
|
871 | |
|
|
872 | heap [k] = *minpos; |
|
|
873 | ev_active (ANHE_w (*minpos)) = k; |
|
|
874 | |
|
|
875 | k = minpos - heap; |
|
|
876 | } |
|
|
877 | |
|
|
878 | heap [k] = he; |
|
|
879 | ev_active (ANHE_w (he)) = k; |
|
|
880 | } |
|
|
881 | |
|
|
882 | #else /* 4HEAP */ |
|
|
883 | |
|
|
884 | #define HEAP0 1 |
|
|
885 | #define HPARENT(k) ((k) >> 1) |
|
|
886 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
887 | |
|
|
888 | /* away from the root */ |
|
|
889 | void inline_speed |
|
|
890 | downheap (ANHE *heap, int N, int k) |
|
|
891 | { |
|
|
892 | ANHE he = heap [k]; |
|
|
893 | |
|
|
894 | for (;;) |
|
|
895 | { |
|
|
896 | int c = k << 1; |
|
|
897 | |
|
|
898 | if (c > N + HEAP0 - 1) |
|
|
899 | break; |
|
|
900 | |
|
|
901 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
902 | ? 1 : 0; |
|
|
903 | |
|
|
904 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
905 | break; |
|
|
906 | |
|
|
907 | heap [k] = heap [c]; |
|
|
908 | ev_active (ANHE_w (heap [k])) = k; |
|
|
909 | |
|
|
910 | k = c; |
|
|
911 | } |
|
|
912 | |
|
|
913 | heap [k] = he; |
|
|
914 | ev_active (ANHE_w (he)) = k; |
|
|
915 | } |
|
|
916 | #endif |
|
|
917 | |
|
|
918 | /* towards the root */ |
|
|
919 | void inline_speed |
|
|
920 | upheap (ANHE *heap, int k) |
|
|
921 | { |
|
|
922 | ANHE he = heap [k]; |
|
|
923 | |
|
|
924 | for (;;) |
|
|
925 | { |
|
|
926 | int p = HPARENT (k); |
|
|
927 | |
|
|
928 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
929 | break; |
|
|
930 | |
719 | heap [k] = heap [p]; |
931 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
932 | ev_active (ANHE_w (heap [k])) = k; |
721 | k = p; |
933 | k = p; |
722 | } |
934 | } |
723 | |
935 | |
724 | heap [k] = w; |
936 | heap [k] = he; |
725 | ((W)heap [k])->active = k + 1; |
937 | ev_active (ANHE_w (he)) = k; |
726 | } |
|
|
727 | |
|
|
728 | void inline_speed |
|
|
729 | downheap (WT *heap, int N, int k) |
|
|
730 | { |
|
|
731 | WT w = heap [k]; |
|
|
732 | |
|
|
733 | for (;;) |
|
|
734 | { |
|
|
735 | int c = (k << 1) + 1; |
|
|
736 | |
|
|
737 | if (c >= N) |
|
|
738 | break; |
|
|
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | heap [k] = heap [c]; |
|
|
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
|
|
749 | k = c; |
|
|
750 | } |
|
|
751 | |
|
|
752 | heap [k] = w; |
|
|
753 | ((W)heap [k])->active = k + 1; |
|
|
754 | } |
938 | } |
755 | |
939 | |
756 | void inline_size |
940 | void inline_size |
757 | adjustheap (WT *heap, int N, int k) |
941 | adjustheap (ANHE *heap, int N, int k) |
758 | { |
942 | { |
|
|
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
759 | upheap (heap, k); |
944 | upheap (heap, k); |
|
|
945 | else |
760 | downheap (heap, N, k); |
946 | downheap (heap, N, k); |
|
|
947 | } |
|
|
948 | |
|
|
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
950 | void inline_size |
|
|
951 | reheap (ANHE *heap, int N) |
|
|
952 | { |
|
|
953 | int i; |
|
|
954 | |
|
|
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
956 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
957 | for (i = 0; i < N; ++i) |
|
|
958 | upheap (heap, i + HEAP0); |
761 | } |
959 | } |
762 | |
960 | |
763 | /*****************************************************************************/ |
961 | /*****************************************************************************/ |
764 | |
962 | |
765 | typedef struct |
963 | typedef struct |
766 | { |
964 | { |
767 | WL head; |
965 | WL head; |
768 | sig_atomic_t volatile gotsig; |
966 | EV_ATOMIC_T gotsig; |
769 | } ANSIG; |
967 | } ANSIG; |
770 | |
968 | |
771 | static ANSIG *signals; |
969 | static ANSIG *signals; |
772 | static int signalmax; |
970 | static int signalmax; |
773 | |
971 | |
774 | static int sigpipe [2]; |
972 | static EV_ATOMIC_T gotsig; |
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
973 | |
778 | void inline_size |
974 | void inline_size |
779 | signals_init (ANSIG *base, int count) |
975 | signals_init (ANSIG *base, int count) |
780 | { |
976 | { |
781 | while (count--) |
977 | while (count--) |
… | |
… | |
785 | |
981 | |
786 | ++base; |
982 | ++base; |
787 | } |
983 | } |
788 | } |
984 | } |
789 | |
985 | |
790 | static void |
986 | /*****************************************************************************/ |
791 | sighandler (int signum) |
|
|
792 | { |
|
|
793 | #if _WIN32 |
|
|
794 | signal (signum, sighandler); |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | signals [signum - 1].gotsig = 1; |
|
|
798 | |
|
|
799 | if (!gotsig) |
|
|
800 | { |
|
|
801 | int old_errno = errno; |
|
|
802 | gotsig = 1; |
|
|
803 | write (sigpipe [1], &signum, 1); |
|
|
804 | errno = old_errno; |
|
|
805 | } |
|
|
806 | } |
|
|
807 | |
|
|
808 | void noinline |
|
|
809 | ev_feed_signal_event (EV_P_ int signum) |
|
|
810 | { |
|
|
811 | WL w; |
|
|
812 | |
|
|
813 | #if EV_MULTIPLICITY |
|
|
814 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | --signum; |
|
|
818 | |
|
|
819 | if (signum < 0 || signum >= signalmax) |
|
|
820 | return; |
|
|
821 | |
|
|
822 | signals [signum].gotsig = 0; |
|
|
823 | |
|
|
824 | for (w = signals [signum].head; w; w = w->next) |
|
|
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
830 | { |
|
|
831 | int signum; |
|
|
832 | |
|
|
833 | read (sigpipe [0], &revents, 1); |
|
|
834 | gotsig = 0; |
|
|
835 | |
|
|
836 | for (signum = signalmax; signum--; ) |
|
|
837 | if (signals [signum].gotsig) |
|
|
838 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
839 | } |
|
|
840 | |
987 | |
841 | void inline_speed |
988 | void inline_speed |
842 | fd_intern (int fd) |
989 | fd_intern (int fd) |
843 | { |
990 | { |
844 | #ifdef _WIN32 |
991 | #ifdef _WIN32 |
845 | int arg = 1; |
992 | unsigned long arg = 1; |
846 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
847 | #else |
994 | #else |
848 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
995 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
996 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
997 | #endif |
851 | } |
998 | } |
852 | |
999 | |
853 | static void noinline |
1000 | static void noinline |
854 | siginit (EV_P) |
1001 | evpipe_init (EV_P) |
855 | { |
1002 | { |
|
|
1003 | if (!ev_is_active (&pipeev)) |
|
|
1004 | { |
|
|
1005 | #if EV_USE_EVENTFD |
|
|
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1007 | { |
|
|
1008 | evpipe [0] = -1; |
|
|
1009 | fd_intern (evfd); |
|
|
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1011 | } |
|
|
1012 | else |
|
|
1013 | #endif |
|
|
1014 | { |
|
|
1015 | while (pipe (evpipe)) |
|
|
1016 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1017 | |
856 | fd_intern (sigpipe [0]); |
1018 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
1019 | fd_intern (evpipe [1]); |
|
|
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1021 | } |
858 | |
1022 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
1023 | ev_io_start (EV_A_ &pipeev); |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | void inline_size |
|
|
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1030 | { |
|
|
1031 | if (!*flag) |
|
|
1032 | { |
|
|
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1034 | |
|
|
1035 | *flag = 1; |
|
|
1036 | |
|
|
1037 | #if EV_USE_EVENTFD |
|
|
1038 | if (evfd >= 0) |
|
|
1039 | { |
|
|
1040 | uint64_t counter = 1; |
|
|
1041 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1042 | } |
|
|
1043 | else |
|
|
1044 | #endif |
|
|
1045 | write (evpipe [1], &old_errno, 1); |
|
|
1046 | |
|
|
1047 | errno = old_errno; |
|
|
1048 | } |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | static void |
|
|
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1053 | { |
|
|
1054 | #if EV_USE_EVENTFD |
|
|
1055 | if (evfd >= 0) |
|
|
1056 | { |
|
|
1057 | uint64_t counter; |
|
|
1058 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1059 | } |
|
|
1060 | else |
|
|
1061 | #endif |
|
|
1062 | { |
|
|
1063 | char dummy; |
|
|
1064 | read (evpipe [0], &dummy, 1); |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1068 | { |
|
|
1069 | int signum; |
|
|
1070 | gotsig = 0; |
|
|
1071 | |
|
|
1072 | for (signum = signalmax; signum--; ) |
|
|
1073 | if (signals [signum].gotsig) |
|
|
1074 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | #if EV_ASYNC_ENABLE |
|
|
1078 | if (gotasync) |
|
|
1079 | { |
|
|
1080 | int i; |
|
|
1081 | gotasync = 0; |
|
|
1082 | |
|
|
1083 | for (i = asynccnt; i--; ) |
|
|
1084 | if (asyncs [i]->sent) |
|
|
1085 | { |
|
|
1086 | asyncs [i]->sent = 0; |
|
|
1087 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1088 | } |
|
|
1089 | } |
|
|
1090 | #endif |
862 | } |
1091 | } |
863 | |
1092 | |
864 | /*****************************************************************************/ |
1093 | /*****************************************************************************/ |
865 | |
1094 | |
|
|
1095 | static void |
|
|
1096 | ev_sighandler (int signum) |
|
|
1097 | { |
|
|
1098 | #if EV_MULTIPLICITY |
|
|
1099 | struct ev_loop *loop = &default_loop_struct; |
|
|
1100 | #endif |
|
|
1101 | |
|
|
1102 | #if _WIN32 |
|
|
1103 | signal (signum, ev_sighandler); |
|
|
1104 | #endif |
|
|
1105 | |
|
|
1106 | signals [signum - 1].gotsig = 1; |
|
|
1107 | evpipe_write (EV_A_ &gotsig); |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | void noinline |
|
|
1111 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1112 | { |
|
|
1113 | WL w; |
|
|
1114 | |
|
|
1115 | #if EV_MULTIPLICITY |
|
|
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1117 | #endif |
|
|
1118 | |
|
|
1119 | --signum; |
|
|
1120 | |
|
|
1121 | if (signum < 0 || signum >= signalmax) |
|
|
1122 | return; |
|
|
1123 | |
|
|
1124 | signals [signum].gotsig = 0; |
|
|
1125 | |
|
|
1126 | for (w = signals [signum].head; w; w = w->next) |
|
|
1127 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | /*****************************************************************************/ |
|
|
1131 | |
866 | static WL childs [EV_PID_HASHSIZE]; |
1132 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
1133 | |
868 | #ifndef _WIN32 |
1134 | #ifndef _WIN32 |
869 | |
1135 | |
870 | static ev_signal childev; |
1136 | static ev_signal childev; |
871 | |
1137 | |
|
|
1138 | #ifndef WIFCONTINUED |
|
|
1139 | # define WIFCONTINUED(status) 0 |
|
|
1140 | #endif |
|
|
1141 | |
872 | void inline_speed |
1142 | void inline_speed |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1144 | { |
875 | ev_child *w; |
1145 | ev_child *w; |
|
|
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1147 | |
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1148 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1149 | { |
878 | if (w->pid == pid || !w->pid) |
1150 | if ((w->pid == pid || !w->pid) |
|
|
1151 | && (!traced || (w->flags & 1))) |
879 | { |
1152 | { |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1153 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
881 | w->rpid = pid; |
1154 | w->rpid = pid; |
882 | w->rstatus = status; |
1155 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1156 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1157 | } |
|
|
1158 | } |
885 | } |
1159 | } |
886 | |
1160 | |
887 | #ifndef WCONTINUED |
1161 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1162 | # define WCONTINUED 0 |
889 | #endif |
1163 | #endif |
… | |
… | |
898 | if (!WCONTINUED |
1172 | if (!WCONTINUED |
899 | || errno != EINVAL |
1173 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1174 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1175 | return; |
902 | |
1176 | |
903 | /* make sure we are called again until all childs have been reaped */ |
1177 | /* make sure we are called again until all children have been reaped */ |
904 | /* we need to do it this way so that the callback gets called before we continue */ |
1178 | /* we need to do it this way so that the callback gets called before we continue */ |
905 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1179 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1180 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1181 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1182 | if (EV_PID_HASHSIZE > 1) |
909 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1183 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1184 | } |
911 | |
1185 | |
912 | #endif |
1186 | #endif |
913 | |
1187 | |
914 | /*****************************************************************************/ |
1188 | /*****************************************************************************/ |
… | |
… | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1307 | have_monotonic = 1; |
1034 | } |
1308 | } |
1035 | #endif |
1309 | #endif |
1036 | |
1310 | |
1037 | ev_rt_now = ev_time (); |
1311 | ev_rt_now = ev_time (); |
1038 | mn_now = get_clock (); |
1312 | mn_now = get_clock (); |
1039 | now_floor = mn_now; |
1313 | now_floor = mn_now; |
1040 | rtmn_diff = ev_rt_now - mn_now; |
1314 | rtmn_diff = ev_rt_now - mn_now; |
1041 | |
1315 | |
1042 | io_blocktime = 0.; |
1316 | io_blocktime = 0.; |
1043 | timeout_blocktime = 0.; |
1317 | timeout_blocktime = 0.; |
|
|
1318 | backend = 0; |
|
|
1319 | backend_fd = -1; |
|
|
1320 | gotasync = 0; |
|
|
1321 | #if EV_USE_INOTIFY |
|
|
1322 | fs_fd = -2; |
|
|
1323 | #endif |
1044 | |
1324 | |
1045 | /* pid check not overridable via env */ |
1325 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1326 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1327 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1328 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1331 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1332 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1333 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1334 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1335 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1336 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1337 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1338 | |
1065 | #if EV_USE_PORT |
1339 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1340 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1341 | #endif |
1068 | #if EV_USE_KQUEUE |
1342 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1350 | #endif |
1077 | #if EV_USE_SELECT |
1351 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1353 | #endif |
1080 | |
1354 | |
1081 | ev_init (&sigev, sigcb); |
1355 | ev_init (&pipeev, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
1083 | } |
1357 | } |
1084 | } |
1358 | } |
1085 | |
1359 | |
1086 | static void noinline |
1360 | static void noinline |
1087 | loop_destroy (EV_P) |
1361 | loop_destroy (EV_P) |
1088 | { |
1362 | { |
1089 | int i; |
1363 | int i; |
|
|
1364 | |
|
|
1365 | if (ev_is_active (&pipeev)) |
|
|
1366 | { |
|
|
1367 | ev_ref (EV_A); /* signal watcher */ |
|
|
1368 | ev_io_stop (EV_A_ &pipeev); |
|
|
1369 | |
|
|
1370 | #if EV_USE_EVENTFD |
|
|
1371 | if (evfd >= 0) |
|
|
1372 | close (evfd); |
|
|
1373 | #endif |
|
|
1374 | |
|
|
1375 | if (evpipe [0] >= 0) |
|
|
1376 | { |
|
|
1377 | close (evpipe [0]); |
|
|
1378 | close (evpipe [1]); |
|
|
1379 | } |
|
|
1380 | } |
1090 | |
1381 | |
1091 | #if EV_USE_INOTIFY |
1382 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1383 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1384 | close (fs_fd); |
1094 | #endif |
1385 | #endif |
… | |
… | |
1131 | #if EV_FORK_ENABLE |
1422 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1423 | array_free (fork, EMPTY); |
1133 | #endif |
1424 | #endif |
1134 | array_free (prepare, EMPTY); |
1425 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1426 | array_free (check, EMPTY); |
|
|
1427 | #if EV_ASYNC_ENABLE |
|
|
1428 | array_free (async, EMPTY); |
|
|
1429 | #endif |
1136 | |
1430 | |
1137 | backend = 0; |
1431 | backend = 0; |
1138 | } |
1432 | } |
1139 | |
1433 | |
|
|
1434 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1435 | void inline_size infy_fork (EV_P); |
|
|
1436 | #endif |
1141 | |
1437 | |
1142 | void inline_size |
1438 | void inline_size |
1143 | loop_fork (EV_P) |
1439 | loop_fork (EV_P) |
1144 | { |
1440 | { |
1145 | #if EV_USE_PORT |
1441 | #if EV_USE_PORT |
… | |
… | |
1153 | #endif |
1449 | #endif |
1154 | #if EV_USE_INOTIFY |
1450 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1451 | infy_fork (EV_A); |
1156 | #endif |
1452 | #endif |
1157 | |
1453 | |
1158 | if (ev_is_active (&sigev)) |
1454 | if (ev_is_active (&pipeev)) |
1159 | { |
1455 | { |
1160 | /* default loop */ |
1456 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1457 | /* while we modify the fd vars */ |
|
|
1458 | gotsig = 1; |
|
|
1459 | #if EV_ASYNC_ENABLE |
|
|
1460 | gotasync = 1; |
|
|
1461 | #endif |
1161 | |
1462 | |
1162 | ev_ref (EV_A); |
1463 | ev_ref (EV_A); |
1163 | ev_io_stop (EV_A_ &sigev); |
1464 | ev_io_stop (EV_A_ &pipeev); |
|
|
1465 | |
|
|
1466 | #if EV_USE_EVENTFD |
|
|
1467 | if (evfd >= 0) |
|
|
1468 | close (evfd); |
|
|
1469 | #endif |
|
|
1470 | |
|
|
1471 | if (evpipe [0] >= 0) |
|
|
1472 | { |
1164 | close (sigpipe [0]); |
1473 | close (evpipe [0]); |
1165 | close (sigpipe [1]); |
1474 | close (evpipe [1]); |
|
|
1475 | } |
1166 | |
1476 | |
1167 | while (pipe (sigpipe)) |
|
|
1168 | syserr ("(libev) error creating pipe"); |
|
|
1169 | |
|
|
1170 | siginit (EV_A); |
1477 | evpipe_init (EV_A); |
|
|
1478 | /* now iterate over everything, in case we missed something */ |
1171 | sigcb (EV_A_ &sigev, EV_READ); |
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
1172 | } |
1480 | } |
1173 | |
1481 | |
1174 | postfork = 0; |
1482 | postfork = 0; |
1175 | } |
1483 | } |
1176 | |
1484 | |
1177 | #if EV_MULTIPLICITY |
1485 | #if EV_MULTIPLICITY |
|
|
1486 | |
1178 | struct ev_loop * |
1487 | struct ev_loop * |
1179 | ev_loop_new (unsigned int flags) |
1488 | ev_loop_new (unsigned int flags) |
1180 | { |
1489 | { |
1181 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1490 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1182 | |
1491 | |
… | |
… | |
1201 | ev_loop_fork (EV_P) |
1510 | ev_loop_fork (EV_P) |
1202 | { |
1511 | { |
1203 | postfork = 1; /* must be in line with ev_default_fork */ |
1512 | postfork = 1; /* must be in line with ev_default_fork */ |
1204 | } |
1513 | } |
1205 | |
1514 | |
|
|
1515 | #if EV_VERIFY |
|
|
1516 | void noinline |
|
|
1517 | verify_watcher (EV_P_ W w) |
|
|
1518 | { |
|
|
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1520 | |
|
|
1521 | if (w->pending) |
|
|
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | static void noinline |
|
|
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1527 | { |
|
|
1528 | int i; |
|
|
1529 | |
|
|
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1531 | { |
|
|
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1535 | |
|
|
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1537 | } |
|
|
1538 | } |
|
|
1539 | |
|
|
1540 | static void noinline |
|
|
1541 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1542 | { |
|
|
1543 | while (cnt--) |
|
|
1544 | { |
|
|
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1546 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1547 | } |
|
|
1548 | } |
|
|
1549 | #endif |
|
|
1550 | |
|
|
1551 | void |
|
|
1552 | ev_loop_verify (EV_P) |
|
|
1553 | { |
|
|
1554 | #if EV_VERIFY |
|
|
1555 | int i; |
|
|
1556 | WL w; |
|
|
1557 | |
|
|
1558 | assert (activecnt >= -1); |
|
|
1559 | |
|
|
1560 | assert (fdchangemax >= fdchangecnt); |
|
|
1561 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1563 | |
|
|
1564 | assert (anfdmax >= 0); |
|
|
1565 | for (i = 0; i < anfdmax; ++i) |
|
|
1566 | for (w = anfds [i].head; w; w = w->next) |
|
|
1567 | { |
|
|
1568 | verify_watcher (EV_A_ (W)w); |
|
|
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | assert (timermax >= timercnt); |
|
|
1574 | verify_heap (EV_A_ timers, timercnt); |
|
|
1575 | |
|
|
1576 | #if EV_PERIODIC_ENABLE |
|
|
1577 | assert (periodicmax >= periodiccnt); |
|
|
1578 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1579 | #endif |
|
|
1580 | |
|
|
1581 | for (i = NUMPRI; i--; ) |
|
|
1582 | { |
|
|
1583 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1584 | #if EV_IDLE_ENABLE |
|
|
1585 | assert (idleall >= 0); |
|
|
1586 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1587 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1588 | #endif |
|
|
1589 | } |
|
|
1590 | |
|
|
1591 | #if EV_FORK_ENABLE |
|
|
1592 | assert (forkmax >= forkcnt); |
|
|
1593 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1594 | #endif |
|
|
1595 | |
|
|
1596 | #if EV_ASYNC_ENABLE |
|
|
1597 | assert (asyncmax >= asynccnt); |
|
|
1598 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1599 | #endif |
|
|
1600 | |
|
|
1601 | assert (preparemax >= preparecnt); |
|
|
1602 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1603 | |
|
|
1604 | assert (checkmax >= checkcnt); |
|
|
1605 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1606 | |
|
|
1607 | # if 0 |
|
|
1608 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1609 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1206 | #endif |
1610 | # endif |
|
|
1611 | #endif |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | #endif /* multiplicity */ |
1207 | |
1615 | |
1208 | #if EV_MULTIPLICITY |
1616 | #if EV_MULTIPLICITY |
1209 | struct ev_loop * |
1617 | struct ev_loop * |
1210 | ev_default_loop_init (unsigned int flags) |
1618 | ev_default_loop_init (unsigned int flags) |
1211 | #else |
1619 | #else |
1212 | int |
1620 | int |
1213 | ev_default_loop (unsigned int flags) |
1621 | ev_default_loop (unsigned int flags) |
1214 | #endif |
1622 | #endif |
1215 | { |
1623 | { |
1216 | if (sigpipe [0] == sigpipe [1]) |
|
|
1217 | if (pipe (sigpipe)) |
|
|
1218 | return 0; |
|
|
1219 | |
|
|
1220 | if (!ev_default_loop_ptr) |
1624 | if (!ev_default_loop_ptr) |
1221 | { |
1625 | { |
1222 | #if EV_MULTIPLICITY |
1626 | #if EV_MULTIPLICITY |
1223 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1627 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1224 | #else |
1628 | #else |
… | |
… | |
1227 | |
1631 | |
1228 | loop_init (EV_A_ flags); |
1632 | loop_init (EV_A_ flags); |
1229 | |
1633 | |
1230 | if (ev_backend (EV_A)) |
1634 | if (ev_backend (EV_A)) |
1231 | { |
1635 | { |
1232 | siginit (EV_A); |
|
|
1233 | |
|
|
1234 | #ifndef _WIN32 |
1636 | #ifndef _WIN32 |
1235 | ev_signal_init (&childev, childcb, SIGCHLD); |
1637 | ev_signal_init (&childev, childcb, SIGCHLD); |
1236 | ev_set_priority (&childev, EV_MAXPRI); |
1638 | ev_set_priority (&childev, EV_MAXPRI); |
1237 | ev_signal_start (EV_A_ &childev); |
1639 | ev_signal_start (EV_A_ &childev); |
1238 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1640 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1255 | #ifndef _WIN32 |
1657 | #ifndef _WIN32 |
1256 | ev_ref (EV_A); /* child watcher */ |
1658 | ev_ref (EV_A); /* child watcher */ |
1257 | ev_signal_stop (EV_A_ &childev); |
1659 | ev_signal_stop (EV_A_ &childev); |
1258 | #endif |
1660 | #endif |
1259 | |
1661 | |
1260 | ev_ref (EV_A); /* signal watcher */ |
|
|
1261 | ev_io_stop (EV_A_ &sigev); |
|
|
1262 | |
|
|
1263 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1264 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1265 | |
|
|
1266 | loop_destroy (EV_A); |
1662 | loop_destroy (EV_A); |
1267 | } |
1663 | } |
1268 | |
1664 | |
1269 | void |
1665 | void |
1270 | ev_default_fork (void) |
1666 | ev_default_fork (void) |
… | |
… | |
1299 | { |
1695 | { |
1300 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1301 | |
1697 | |
1302 | p->w->pending = 0; |
1698 | p->w->pending = 0; |
1303 | EV_CB_INVOKE (p->w, p->events); |
1699 | EV_CB_INVOKE (p->w, p->events); |
|
|
1700 | EV_FREQUENT_CHECK; |
1304 | } |
1701 | } |
1305 | } |
1702 | } |
1306 | } |
1703 | } |
1307 | |
|
|
1308 | void inline_size |
|
|
1309 | timers_reify (EV_P) |
|
|
1310 | { |
|
|
1311 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1312 | { |
|
|
1313 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1314 | |
|
|
1315 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1316 | |
|
|
1317 | /* first reschedule or stop timer */ |
|
|
1318 | if (w->repeat) |
|
|
1319 | { |
|
|
1320 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1321 | |
|
|
1322 | ((WT)w)->at += w->repeat; |
|
|
1323 | if (((WT)w)->at < mn_now) |
|
|
1324 | ((WT)w)->at = mn_now; |
|
|
1325 | |
|
|
1326 | downheap (timers, timercnt, 0); |
|
|
1327 | } |
|
|
1328 | else |
|
|
1329 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1330 | |
|
|
1331 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1332 | } |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | #if EV_PERIODIC_ENABLE |
|
|
1336 | void inline_size |
|
|
1337 | periodics_reify (EV_P) |
|
|
1338 | { |
|
|
1339 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1340 | { |
|
|
1341 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1342 | |
|
|
1343 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1344 | |
|
|
1345 | /* first reschedule or stop timer */ |
|
|
1346 | if (w->reschedule_cb) |
|
|
1347 | { |
|
|
1348 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1349 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1350 | downheap (periodics, periodiccnt, 0); |
|
|
1351 | } |
|
|
1352 | else if (w->interval) |
|
|
1353 | { |
|
|
1354 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1355 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1356 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1357 | downheap (periodics, periodiccnt, 0); |
|
|
1358 | } |
|
|
1359 | else |
|
|
1360 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1361 | |
|
|
1362 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1363 | } |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | static void noinline |
|
|
1367 | periodics_reschedule (EV_P) |
|
|
1368 | { |
|
|
1369 | int i; |
|
|
1370 | |
|
|
1371 | /* adjust periodics after time jump */ |
|
|
1372 | for (i = 0; i < periodiccnt; ++i) |
|
|
1373 | { |
|
|
1374 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1375 | |
|
|
1376 | if (w->reschedule_cb) |
|
|
1377 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1378 | else if (w->interval) |
|
|
1379 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | /* now rebuild the heap */ |
|
|
1383 | for (i = periodiccnt >> 1; i--; ) |
|
|
1384 | downheap (periodics, periodiccnt, i); |
|
|
1385 | } |
|
|
1386 | #endif |
|
|
1387 | |
1704 | |
1388 | #if EV_IDLE_ENABLE |
1705 | #if EV_IDLE_ENABLE |
1389 | void inline_size |
1706 | void inline_size |
1390 | idle_reify (EV_P) |
1707 | idle_reify (EV_P) |
1391 | { |
1708 | { |
… | |
… | |
1403 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1720 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1404 | break; |
1721 | break; |
1405 | } |
1722 | } |
1406 | } |
1723 | } |
1407 | } |
1724 | } |
|
|
1725 | } |
|
|
1726 | #endif |
|
|
1727 | |
|
|
1728 | void inline_size |
|
|
1729 | timers_reify (EV_P) |
|
|
1730 | { |
|
|
1731 | EV_FREQUENT_CHECK; |
|
|
1732 | |
|
|
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1734 | { |
|
|
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1736 | |
|
|
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1738 | |
|
|
1739 | /* first reschedule or stop timer */ |
|
|
1740 | if (w->repeat) |
|
|
1741 | { |
|
|
1742 | ev_at (w) += w->repeat; |
|
|
1743 | if (ev_at (w) < mn_now) |
|
|
1744 | ev_at (w) = mn_now; |
|
|
1745 | |
|
|
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1747 | |
|
|
1748 | ANHE_at_cache (timers [HEAP0]); |
|
|
1749 | downheap (timers, timercnt, HEAP0); |
|
|
1750 | } |
|
|
1751 | else |
|
|
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1753 | |
|
|
1754 | EV_FREQUENT_CHECK; |
|
|
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1756 | } |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | #if EV_PERIODIC_ENABLE |
|
|
1760 | void inline_size |
|
|
1761 | periodics_reify (EV_P) |
|
|
1762 | { |
|
|
1763 | EV_FREQUENT_CHECK; |
|
|
1764 | |
|
|
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1766 | { |
|
|
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1768 | |
|
|
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1770 | |
|
|
1771 | /* first reschedule or stop timer */ |
|
|
1772 | if (w->reschedule_cb) |
|
|
1773 | { |
|
|
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1775 | |
|
|
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1777 | |
|
|
1778 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1779 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1780 | } |
|
|
1781 | else if (w->interval) |
|
|
1782 | { |
|
|
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
|
|
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1798 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
|
|
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1805 | } |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void noinline |
|
|
1809 | periodics_reschedule (EV_P) |
|
|
1810 | { |
|
|
1811 | int i; |
|
|
1812 | |
|
|
1813 | /* adjust periodics after time jump */ |
|
|
1814 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1815 | { |
|
|
1816 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1817 | |
|
|
1818 | if (w->reschedule_cb) |
|
|
1819 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1820 | else if (w->interval) |
|
|
1821 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1822 | |
|
|
1823 | ANHE_at_cache (periodics [i]); |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | reheap (periodics, periodiccnt); |
1408 | } |
1827 | } |
1409 | #endif |
1828 | #endif |
1410 | |
1829 | |
1411 | void inline_speed |
1830 | void inline_speed |
1412 | time_update (EV_P_ ev_tstamp max_block) |
1831 | time_update (EV_P_ ev_tstamp max_block) |
… | |
… | |
1441 | */ |
1860 | */ |
1442 | for (i = 4; --i; ) |
1861 | for (i = 4; --i; ) |
1443 | { |
1862 | { |
1444 | rtmn_diff = ev_rt_now - mn_now; |
1863 | rtmn_diff = ev_rt_now - mn_now; |
1445 | |
1864 | |
1446 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1865 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1447 | return; /* all is well */ |
1866 | return; /* all is well */ |
1448 | |
1867 | |
1449 | ev_rt_now = ev_time (); |
1868 | ev_rt_now = ev_time (); |
1450 | mn_now = get_clock (); |
1869 | mn_now = get_clock (); |
1451 | now_floor = mn_now; |
1870 | now_floor = mn_now; |
… | |
… | |
1467 | #if EV_PERIODIC_ENABLE |
1886 | #if EV_PERIODIC_ENABLE |
1468 | periodics_reschedule (EV_A); |
1887 | periodics_reschedule (EV_A); |
1469 | #endif |
1888 | #endif |
1470 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1471 | for (i = 0; i < timercnt; ++i) |
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
1472 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
1473 | } |
1896 | } |
1474 | |
1897 | |
1475 | mn_now = ev_rt_now; |
1898 | mn_now = ev_rt_now; |
1476 | } |
1899 | } |
1477 | } |
1900 | } |
… | |
… | |
1491 | static int loop_done; |
1914 | static int loop_done; |
1492 | |
1915 | |
1493 | void |
1916 | void |
1494 | ev_loop (EV_P_ int flags) |
1917 | ev_loop (EV_P_ int flags) |
1495 | { |
1918 | { |
1496 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1919 | loop_done = EVUNLOOP_CANCEL; |
1497 | ? EVUNLOOP_ONE |
|
|
1498 | : EVUNLOOP_CANCEL; |
|
|
1499 | |
1920 | |
1500 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1921 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1501 | |
1922 | |
1502 | do |
1923 | do |
1503 | { |
1924 | { |
|
|
1925 | #if EV_VERIFY >= 2 |
|
|
1926 | ev_loop_verify (EV_A); |
|
|
1927 | #endif |
|
|
1928 | |
1504 | #ifndef _WIN32 |
1929 | #ifndef _WIN32 |
1505 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1930 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1506 | if (expect_false (getpid () != curpid)) |
1931 | if (expect_false (getpid () != curpid)) |
1507 | { |
1932 | { |
1508 | curpid = getpid (); |
1933 | curpid = getpid (); |
… | |
… | |
1549 | |
1974 | |
1550 | waittime = MAX_BLOCKTIME; |
1975 | waittime = MAX_BLOCKTIME; |
1551 | |
1976 | |
1552 | if (timercnt) |
1977 | if (timercnt) |
1553 | { |
1978 | { |
1554 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1979 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1555 | if (waittime > to) waittime = to; |
1980 | if (waittime > to) waittime = to; |
1556 | } |
1981 | } |
1557 | |
1982 | |
1558 | #if EV_PERIODIC_ENABLE |
1983 | #if EV_PERIODIC_ENABLE |
1559 | if (periodiccnt) |
1984 | if (periodiccnt) |
1560 | { |
1985 | { |
1561 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1986 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1562 | if (waittime > to) waittime = to; |
1987 | if (waittime > to) waittime = to; |
1563 | } |
1988 | } |
1564 | #endif |
1989 | #endif |
1565 | |
1990 | |
1566 | if (expect_false (waittime < timeout_blocktime)) |
1991 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1599 | /* queue check watchers, to be executed first */ |
2024 | /* queue check watchers, to be executed first */ |
1600 | if (expect_false (checkcnt)) |
2025 | if (expect_false (checkcnt)) |
1601 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2026 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1602 | |
2027 | |
1603 | call_pending (EV_A); |
2028 | call_pending (EV_A); |
1604 | |
|
|
1605 | } |
2029 | } |
1606 | while (expect_true (activecnt && !loop_done)); |
2030 | while (expect_true ( |
|
|
2031 | activecnt |
|
|
2032 | && !loop_done |
|
|
2033 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2034 | )); |
1607 | |
2035 | |
1608 | if (loop_done == EVUNLOOP_ONE) |
2036 | if (loop_done == EVUNLOOP_ONE) |
1609 | loop_done = EVUNLOOP_CANCEL; |
2037 | loop_done = EVUNLOOP_CANCEL; |
1610 | } |
2038 | } |
1611 | |
2039 | |
… | |
… | |
1700 | if (expect_false (ev_is_active (w))) |
2128 | if (expect_false (ev_is_active (w))) |
1701 | return; |
2129 | return; |
1702 | |
2130 | |
1703 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1704 | |
2132 | |
|
|
2133 | EV_FREQUENT_CHECK; |
|
|
2134 | |
1705 | ev_start (EV_A_ (W)w, 1); |
2135 | ev_start (EV_A_ (W)w, 1); |
1706 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2136 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1707 | wlist_add (&anfds[fd].head, (WL)w); |
2137 | wlist_add (&anfds[fd].head, (WL)w); |
1708 | |
2138 | |
1709 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2139 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1710 | w->events &= ~EV_IOFDSET; |
2140 | w->events &= ~EV_IOFDSET; |
|
|
2141 | |
|
|
2142 | EV_FREQUENT_CHECK; |
1711 | } |
2143 | } |
1712 | |
2144 | |
1713 | void noinline |
2145 | void noinline |
1714 | ev_io_stop (EV_P_ ev_io *w) |
2146 | ev_io_stop (EV_P_ ev_io *w) |
1715 | { |
2147 | { |
1716 | clear_pending (EV_A_ (W)w); |
2148 | clear_pending (EV_A_ (W)w); |
1717 | if (expect_false (!ev_is_active (w))) |
2149 | if (expect_false (!ev_is_active (w))) |
1718 | return; |
2150 | return; |
1719 | |
2151 | |
1720 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2152 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2153 | |
|
|
2154 | EV_FREQUENT_CHECK; |
1721 | |
2155 | |
1722 | wlist_del (&anfds[w->fd].head, (WL)w); |
2156 | wlist_del (&anfds[w->fd].head, (WL)w); |
1723 | ev_stop (EV_A_ (W)w); |
2157 | ev_stop (EV_A_ (W)w); |
1724 | |
2158 | |
1725 | fd_change (EV_A_ w->fd, 1); |
2159 | fd_change (EV_A_ w->fd, 1); |
|
|
2160 | |
|
|
2161 | EV_FREQUENT_CHECK; |
1726 | } |
2162 | } |
1727 | |
2163 | |
1728 | void noinline |
2164 | void noinline |
1729 | ev_timer_start (EV_P_ ev_timer *w) |
2165 | ev_timer_start (EV_P_ ev_timer *w) |
1730 | { |
2166 | { |
1731 | if (expect_false (ev_is_active (w))) |
2167 | if (expect_false (ev_is_active (w))) |
1732 | return; |
2168 | return; |
1733 | |
2169 | |
1734 | ((WT)w)->at += mn_now; |
2170 | ev_at (w) += mn_now; |
1735 | |
2171 | |
1736 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2172 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1737 | |
2173 | |
|
|
2174 | EV_FREQUENT_CHECK; |
|
|
2175 | |
|
|
2176 | ++timercnt; |
1738 | ev_start (EV_A_ (W)w, ++timercnt); |
2177 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1739 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2178 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1740 | timers [timercnt - 1] = (WT)w; |
2179 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1741 | upheap (timers, timercnt - 1); |
2180 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2181 | upheap (timers, ev_active (w)); |
1742 | |
2182 | |
|
|
2183 | EV_FREQUENT_CHECK; |
|
|
2184 | |
1743 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2185 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1744 | } |
2186 | } |
1745 | |
2187 | |
1746 | void noinline |
2188 | void noinline |
1747 | ev_timer_stop (EV_P_ ev_timer *w) |
2189 | ev_timer_stop (EV_P_ ev_timer *w) |
1748 | { |
2190 | { |
1749 | clear_pending (EV_A_ (W)w); |
2191 | clear_pending (EV_A_ (W)w); |
1750 | if (expect_false (!ev_is_active (w))) |
2192 | if (expect_false (!ev_is_active (w))) |
1751 | return; |
2193 | return; |
1752 | |
2194 | |
1753 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2195 | EV_FREQUENT_CHECK; |
1754 | |
2196 | |
1755 | { |
2197 | { |
1756 | int active = ((W)w)->active; |
2198 | int active = ev_active (w); |
1757 | |
2199 | |
|
|
2200 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2201 | |
|
|
2202 | --timercnt; |
|
|
2203 | |
1758 | if (expect_true (--active < --timercnt)) |
2204 | if (expect_true (active < timercnt + HEAP0)) |
1759 | { |
2205 | { |
1760 | timers [active] = timers [timercnt]; |
2206 | timers [active] = timers [timercnt + HEAP0]; |
1761 | adjustheap (timers, timercnt, active); |
2207 | adjustheap (timers, timercnt, active); |
1762 | } |
2208 | } |
1763 | } |
2209 | } |
1764 | |
2210 | |
1765 | ((WT)w)->at -= mn_now; |
2211 | EV_FREQUENT_CHECK; |
|
|
2212 | |
|
|
2213 | ev_at (w) -= mn_now; |
1766 | |
2214 | |
1767 | ev_stop (EV_A_ (W)w); |
2215 | ev_stop (EV_A_ (W)w); |
1768 | } |
2216 | } |
1769 | |
2217 | |
1770 | void noinline |
2218 | void noinline |
1771 | ev_timer_again (EV_P_ ev_timer *w) |
2219 | ev_timer_again (EV_P_ ev_timer *w) |
1772 | { |
2220 | { |
|
|
2221 | EV_FREQUENT_CHECK; |
|
|
2222 | |
1773 | if (ev_is_active (w)) |
2223 | if (ev_is_active (w)) |
1774 | { |
2224 | { |
1775 | if (w->repeat) |
2225 | if (w->repeat) |
1776 | { |
2226 | { |
1777 | ((WT)w)->at = mn_now + w->repeat; |
2227 | ev_at (w) = mn_now + w->repeat; |
|
|
2228 | ANHE_at_cache (timers [ev_active (w)]); |
1778 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2229 | adjustheap (timers, timercnt, ev_active (w)); |
1779 | } |
2230 | } |
1780 | else |
2231 | else |
1781 | ev_timer_stop (EV_A_ w); |
2232 | ev_timer_stop (EV_A_ w); |
1782 | } |
2233 | } |
1783 | else if (w->repeat) |
2234 | else if (w->repeat) |
1784 | { |
2235 | { |
1785 | w->at = w->repeat; |
2236 | ev_at (w) = w->repeat; |
1786 | ev_timer_start (EV_A_ w); |
2237 | ev_timer_start (EV_A_ w); |
1787 | } |
2238 | } |
|
|
2239 | |
|
|
2240 | EV_FREQUENT_CHECK; |
1788 | } |
2241 | } |
1789 | |
2242 | |
1790 | #if EV_PERIODIC_ENABLE |
2243 | #if EV_PERIODIC_ENABLE |
1791 | void noinline |
2244 | void noinline |
1792 | ev_periodic_start (EV_P_ ev_periodic *w) |
2245 | ev_periodic_start (EV_P_ ev_periodic *w) |
1793 | { |
2246 | { |
1794 | if (expect_false (ev_is_active (w))) |
2247 | if (expect_false (ev_is_active (w))) |
1795 | return; |
2248 | return; |
1796 | |
2249 | |
1797 | if (w->reschedule_cb) |
2250 | if (w->reschedule_cb) |
1798 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2251 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1799 | else if (w->interval) |
2252 | else if (w->interval) |
1800 | { |
2253 | { |
1801 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2254 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1802 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2255 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1803 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2256 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1804 | } |
2257 | } |
1805 | else |
2258 | else |
1806 | ((WT)w)->at = w->offset; |
2259 | ev_at (w) = w->offset; |
1807 | |
2260 | |
|
|
2261 | EV_FREQUENT_CHECK; |
|
|
2262 | |
|
|
2263 | ++periodiccnt; |
1808 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2264 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1809 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2265 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1810 | periodics [periodiccnt - 1] = (WT)w; |
2266 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1811 | upheap (periodics, periodiccnt - 1); |
2267 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2268 | upheap (periodics, ev_active (w)); |
1812 | |
2269 | |
|
|
2270 | EV_FREQUENT_CHECK; |
|
|
2271 | |
1813 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2272 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1814 | } |
2273 | } |
1815 | |
2274 | |
1816 | void noinline |
2275 | void noinline |
1817 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2276 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1818 | { |
2277 | { |
1819 | clear_pending (EV_A_ (W)w); |
2278 | clear_pending (EV_A_ (W)w); |
1820 | if (expect_false (!ev_is_active (w))) |
2279 | if (expect_false (!ev_is_active (w))) |
1821 | return; |
2280 | return; |
1822 | |
2281 | |
1823 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2282 | EV_FREQUENT_CHECK; |
1824 | |
2283 | |
1825 | { |
2284 | { |
1826 | int active = ((W)w)->active; |
2285 | int active = ev_active (w); |
1827 | |
2286 | |
|
|
2287 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2288 | |
|
|
2289 | --periodiccnt; |
|
|
2290 | |
1828 | if (expect_true (--active < --periodiccnt)) |
2291 | if (expect_true (active < periodiccnt + HEAP0)) |
1829 | { |
2292 | { |
1830 | periodics [active] = periodics [periodiccnt]; |
2293 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1831 | adjustheap (periodics, periodiccnt, active); |
2294 | adjustheap (periodics, periodiccnt, active); |
1832 | } |
2295 | } |
1833 | } |
2296 | } |
1834 | |
2297 | |
|
|
2298 | EV_FREQUENT_CHECK; |
|
|
2299 | |
1835 | ev_stop (EV_A_ (W)w); |
2300 | ev_stop (EV_A_ (W)w); |
1836 | } |
2301 | } |
1837 | |
2302 | |
1838 | void noinline |
2303 | void noinline |
1839 | ev_periodic_again (EV_P_ ev_periodic *w) |
2304 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1856 | #endif |
2321 | #endif |
1857 | if (expect_false (ev_is_active (w))) |
2322 | if (expect_false (ev_is_active (w))) |
1858 | return; |
2323 | return; |
1859 | |
2324 | |
1860 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2326 | |
|
|
2327 | evpipe_init (EV_A); |
|
|
2328 | |
|
|
2329 | EV_FREQUENT_CHECK; |
1861 | |
2330 | |
1862 | { |
2331 | { |
1863 | #ifndef _WIN32 |
2332 | #ifndef _WIN32 |
1864 | sigset_t full, prev; |
2333 | sigset_t full, prev; |
1865 | sigfillset (&full); |
2334 | sigfillset (&full); |
… | |
… | |
1877 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2346 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1878 | |
2347 | |
1879 | if (!((WL)w)->next) |
2348 | if (!((WL)w)->next) |
1880 | { |
2349 | { |
1881 | #if _WIN32 |
2350 | #if _WIN32 |
1882 | signal (w->signum, sighandler); |
2351 | signal (w->signum, ev_sighandler); |
1883 | #else |
2352 | #else |
1884 | struct sigaction sa; |
2353 | struct sigaction sa; |
1885 | sa.sa_handler = sighandler; |
2354 | sa.sa_handler = ev_sighandler; |
1886 | sigfillset (&sa.sa_mask); |
2355 | sigfillset (&sa.sa_mask); |
1887 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2356 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1888 | sigaction (w->signum, &sa, 0); |
2357 | sigaction (w->signum, &sa, 0); |
1889 | #endif |
2358 | #endif |
1890 | } |
2359 | } |
|
|
2360 | |
|
|
2361 | EV_FREQUENT_CHECK; |
1891 | } |
2362 | } |
1892 | |
2363 | |
1893 | void noinline |
2364 | void noinline |
1894 | ev_signal_stop (EV_P_ ev_signal *w) |
2365 | ev_signal_stop (EV_P_ ev_signal *w) |
1895 | { |
2366 | { |
1896 | clear_pending (EV_A_ (W)w); |
2367 | clear_pending (EV_A_ (W)w); |
1897 | if (expect_false (!ev_is_active (w))) |
2368 | if (expect_false (!ev_is_active (w))) |
1898 | return; |
2369 | return; |
1899 | |
2370 | |
|
|
2371 | EV_FREQUENT_CHECK; |
|
|
2372 | |
1900 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2373 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1901 | ev_stop (EV_A_ (W)w); |
2374 | ev_stop (EV_A_ (W)w); |
1902 | |
2375 | |
1903 | if (!signals [w->signum - 1].head) |
2376 | if (!signals [w->signum - 1].head) |
1904 | signal (w->signum, SIG_DFL); |
2377 | signal (w->signum, SIG_DFL); |
|
|
2378 | |
|
|
2379 | EV_FREQUENT_CHECK; |
1905 | } |
2380 | } |
1906 | |
2381 | |
1907 | void |
2382 | void |
1908 | ev_child_start (EV_P_ ev_child *w) |
2383 | ev_child_start (EV_P_ ev_child *w) |
1909 | { |
2384 | { |
… | |
… | |
1911 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2386 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1912 | #endif |
2387 | #endif |
1913 | if (expect_false (ev_is_active (w))) |
2388 | if (expect_false (ev_is_active (w))) |
1914 | return; |
2389 | return; |
1915 | |
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
|
|
2392 | |
1916 | ev_start (EV_A_ (W)w, 1); |
2393 | ev_start (EV_A_ (W)w, 1); |
1917 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2394 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2395 | |
|
|
2396 | EV_FREQUENT_CHECK; |
1918 | } |
2397 | } |
1919 | |
2398 | |
1920 | void |
2399 | void |
1921 | ev_child_stop (EV_P_ ev_child *w) |
2400 | ev_child_stop (EV_P_ ev_child *w) |
1922 | { |
2401 | { |
1923 | clear_pending (EV_A_ (W)w); |
2402 | clear_pending (EV_A_ (W)w); |
1924 | if (expect_false (!ev_is_active (w))) |
2403 | if (expect_false (!ev_is_active (w))) |
1925 | return; |
2404 | return; |
1926 | |
2405 | |
|
|
2406 | EV_FREQUENT_CHECK; |
|
|
2407 | |
1927 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2408 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1928 | ev_stop (EV_A_ (W)w); |
2409 | ev_stop (EV_A_ (W)w); |
|
|
2410 | |
|
|
2411 | EV_FREQUENT_CHECK; |
1929 | } |
2412 | } |
1930 | |
2413 | |
1931 | #if EV_STAT_ENABLE |
2414 | #if EV_STAT_ENABLE |
1932 | |
2415 | |
1933 | # ifdef _WIN32 |
2416 | # ifdef _WIN32 |
… | |
… | |
1951 | if (w->wd < 0) |
2434 | if (w->wd < 0) |
1952 | { |
2435 | { |
1953 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2436 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1954 | |
2437 | |
1955 | /* monitor some parent directory for speedup hints */ |
2438 | /* monitor some parent directory for speedup hints */ |
|
|
2439 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2440 | /* but an efficiency issue only */ |
1956 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2441 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1957 | { |
2442 | { |
1958 | char path [4096]; |
2443 | char path [4096]; |
1959 | strcpy (path, w->path); |
2444 | strcpy (path, w->path); |
1960 | |
2445 | |
… | |
… | |
2086 | } |
2571 | } |
2087 | |
2572 | |
2088 | } |
2573 | } |
2089 | } |
2574 | } |
2090 | |
2575 | |
|
|
2576 | #endif |
|
|
2577 | |
|
|
2578 | #ifdef _WIN32 |
|
|
2579 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2580 | #else |
|
|
2581 | # define EV_LSTAT(p,b) lstat (p, b) |
2091 | #endif |
2582 | #endif |
2092 | |
2583 | |
2093 | void |
2584 | void |
2094 | ev_stat_stat (EV_P_ ev_stat *w) |
2585 | ev_stat_stat (EV_P_ ev_stat *w) |
2095 | { |
2586 | { |
… | |
… | |
2159 | else |
2650 | else |
2160 | #endif |
2651 | #endif |
2161 | ev_timer_start (EV_A_ &w->timer); |
2652 | ev_timer_start (EV_A_ &w->timer); |
2162 | |
2653 | |
2163 | ev_start (EV_A_ (W)w, 1); |
2654 | ev_start (EV_A_ (W)w, 1); |
|
|
2655 | |
|
|
2656 | EV_FREQUENT_CHECK; |
2164 | } |
2657 | } |
2165 | |
2658 | |
2166 | void |
2659 | void |
2167 | ev_stat_stop (EV_P_ ev_stat *w) |
2660 | ev_stat_stop (EV_P_ ev_stat *w) |
2168 | { |
2661 | { |
2169 | clear_pending (EV_A_ (W)w); |
2662 | clear_pending (EV_A_ (W)w); |
2170 | if (expect_false (!ev_is_active (w))) |
2663 | if (expect_false (!ev_is_active (w))) |
2171 | return; |
2664 | return; |
2172 | |
2665 | |
|
|
2666 | EV_FREQUENT_CHECK; |
|
|
2667 | |
2173 | #if EV_USE_INOTIFY |
2668 | #if EV_USE_INOTIFY |
2174 | infy_del (EV_A_ w); |
2669 | infy_del (EV_A_ w); |
2175 | #endif |
2670 | #endif |
2176 | ev_timer_stop (EV_A_ &w->timer); |
2671 | ev_timer_stop (EV_A_ &w->timer); |
2177 | |
2672 | |
2178 | ev_stop (EV_A_ (W)w); |
2673 | ev_stop (EV_A_ (W)w); |
|
|
2674 | |
|
|
2675 | EV_FREQUENT_CHECK; |
2179 | } |
2676 | } |
2180 | #endif |
2677 | #endif |
2181 | |
2678 | |
2182 | #if EV_IDLE_ENABLE |
2679 | #if EV_IDLE_ENABLE |
2183 | void |
2680 | void |
… | |
… | |
2185 | { |
2682 | { |
2186 | if (expect_false (ev_is_active (w))) |
2683 | if (expect_false (ev_is_active (w))) |
2187 | return; |
2684 | return; |
2188 | |
2685 | |
2189 | pri_adjust (EV_A_ (W)w); |
2686 | pri_adjust (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
2190 | |
2689 | |
2191 | { |
2690 | { |
2192 | int active = ++idlecnt [ABSPRI (w)]; |
2691 | int active = ++idlecnt [ABSPRI (w)]; |
2193 | |
2692 | |
2194 | ++idleall; |
2693 | ++idleall; |
2195 | ev_start (EV_A_ (W)w, active); |
2694 | ev_start (EV_A_ (W)w, active); |
2196 | |
2695 | |
2197 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2696 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2198 | idles [ABSPRI (w)][active - 1] = w; |
2697 | idles [ABSPRI (w)][active - 1] = w; |
2199 | } |
2698 | } |
|
|
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
2200 | } |
2701 | } |
2201 | |
2702 | |
2202 | void |
2703 | void |
2203 | ev_idle_stop (EV_P_ ev_idle *w) |
2704 | ev_idle_stop (EV_P_ ev_idle *w) |
2204 | { |
2705 | { |
2205 | clear_pending (EV_A_ (W)w); |
2706 | clear_pending (EV_A_ (W)w); |
2206 | if (expect_false (!ev_is_active (w))) |
2707 | if (expect_false (!ev_is_active (w))) |
2207 | return; |
2708 | return; |
2208 | |
2709 | |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | |
2209 | { |
2712 | { |
2210 | int active = ((W)w)->active; |
2713 | int active = ev_active (w); |
2211 | |
2714 | |
2212 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2715 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2213 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2716 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2214 | |
2717 | |
2215 | ev_stop (EV_A_ (W)w); |
2718 | ev_stop (EV_A_ (W)w); |
2216 | --idleall; |
2719 | --idleall; |
2217 | } |
2720 | } |
|
|
2721 | |
|
|
2722 | EV_FREQUENT_CHECK; |
2218 | } |
2723 | } |
2219 | #endif |
2724 | #endif |
2220 | |
2725 | |
2221 | void |
2726 | void |
2222 | ev_prepare_start (EV_P_ ev_prepare *w) |
2727 | ev_prepare_start (EV_P_ ev_prepare *w) |
2223 | { |
2728 | { |
2224 | if (expect_false (ev_is_active (w))) |
2729 | if (expect_false (ev_is_active (w))) |
2225 | return; |
2730 | return; |
|
|
2731 | |
|
|
2732 | EV_FREQUENT_CHECK; |
2226 | |
2733 | |
2227 | ev_start (EV_A_ (W)w, ++preparecnt); |
2734 | ev_start (EV_A_ (W)w, ++preparecnt); |
2228 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2735 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2229 | prepares [preparecnt - 1] = w; |
2736 | prepares [preparecnt - 1] = w; |
|
|
2737 | |
|
|
2738 | EV_FREQUENT_CHECK; |
2230 | } |
2739 | } |
2231 | |
2740 | |
2232 | void |
2741 | void |
2233 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2742 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2234 | { |
2743 | { |
2235 | clear_pending (EV_A_ (W)w); |
2744 | clear_pending (EV_A_ (W)w); |
2236 | if (expect_false (!ev_is_active (w))) |
2745 | if (expect_false (!ev_is_active (w))) |
2237 | return; |
2746 | return; |
2238 | |
2747 | |
|
|
2748 | EV_FREQUENT_CHECK; |
|
|
2749 | |
2239 | { |
2750 | { |
2240 | int active = ((W)w)->active; |
2751 | int active = ev_active (w); |
|
|
2752 | |
2241 | prepares [active - 1] = prepares [--preparecnt]; |
2753 | prepares [active - 1] = prepares [--preparecnt]; |
2242 | ((W)prepares [active - 1])->active = active; |
2754 | ev_active (prepares [active - 1]) = active; |
2243 | } |
2755 | } |
2244 | |
2756 | |
2245 | ev_stop (EV_A_ (W)w); |
2757 | ev_stop (EV_A_ (W)w); |
|
|
2758 | |
|
|
2759 | EV_FREQUENT_CHECK; |
2246 | } |
2760 | } |
2247 | |
2761 | |
2248 | void |
2762 | void |
2249 | ev_check_start (EV_P_ ev_check *w) |
2763 | ev_check_start (EV_P_ ev_check *w) |
2250 | { |
2764 | { |
2251 | if (expect_false (ev_is_active (w))) |
2765 | if (expect_false (ev_is_active (w))) |
2252 | return; |
2766 | return; |
|
|
2767 | |
|
|
2768 | EV_FREQUENT_CHECK; |
2253 | |
2769 | |
2254 | ev_start (EV_A_ (W)w, ++checkcnt); |
2770 | ev_start (EV_A_ (W)w, ++checkcnt); |
2255 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2771 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2256 | checks [checkcnt - 1] = w; |
2772 | checks [checkcnt - 1] = w; |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
2257 | } |
2775 | } |
2258 | |
2776 | |
2259 | void |
2777 | void |
2260 | ev_check_stop (EV_P_ ev_check *w) |
2778 | ev_check_stop (EV_P_ ev_check *w) |
2261 | { |
2779 | { |
2262 | clear_pending (EV_A_ (W)w); |
2780 | clear_pending (EV_A_ (W)w); |
2263 | if (expect_false (!ev_is_active (w))) |
2781 | if (expect_false (!ev_is_active (w))) |
2264 | return; |
2782 | return; |
2265 | |
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | |
2266 | { |
2786 | { |
2267 | int active = ((W)w)->active; |
2787 | int active = ev_active (w); |
|
|
2788 | |
2268 | checks [active - 1] = checks [--checkcnt]; |
2789 | checks [active - 1] = checks [--checkcnt]; |
2269 | ((W)checks [active - 1])->active = active; |
2790 | ev_active (checks [active - 1]) = active; |
2270 | } |
2791 | } |
2271 | |
2792 | |
2272 | ev_stop (EV_A_ (W)w); |
2793 | ev_stop (EV_A_ (W)w); |
|
|
2794 | |
|
|
2795 | EV_FREQUENT_CHECK; |
2273 | } |
2796 | } |
2274 | |
2797 | |
2275 | #if EV_EMBED_ENABLE |
2798 | #if EV_EMBED_ENABLE |
2276 | void noinline |
2799 | void noinline |
2277 | ev_embed_sweep (EV_P_ ev_embed *w) |
2800 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2324 | struct ev_loop *loop = w->other; |
2847 | struct ev_loop *loop = w->other; |
2325 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2848 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2326 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2849 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2327 | } |
2850 | } |
2328 | |
2851 | |
|
|
2852 | EV_FREQUENT_CHECK; |
|
|
2853 | |
2329 | ev_set_priority (&w->io, ev_priority (w)); |
2854 | ev_set_priority (&w->io, ev_priority (w)); |
2330 | ev_io_start (EV_A_ &w->io); |
2855 | ev_io_start (EV_A_ &w->io); |
2331 | |
2856 | |
2332 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2857 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2333 | ev_set_priority (&w->prepare, EV_MINPRI); |
2858 | ev_set_priority (&w->prepare, EV_MINPRI); |
2334 | ev_prepare_start (EV_A_ &w->prepare); |
2859 | ev_prepare_start (EV_A_ &w->prepare); |
2335 | |
2860 | |
2336 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2861 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2337 | |
2862 | |
2338 | ev_start (EV_A_ (W)w, 1); |
2863 | ev_start (EV_A_ (W)w, 1); |
|
|
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
2339 | } |
2866 | } |
2340 | |
2867 | |
2341 | void |
2868 | void |
2342 | ev_embed_stop (EV_P_ ev_embed *w) |
2869 | ev_embed_stop (EV_P_ ev_embed *w) |
2343 | { |
2870 | { |
2344 | clear_pending (EV_A_ (W)w); |
2871 | clear_pending (EV_A_ (W)w); |
2345 | if (expect_false (!ev_is_active (w))) |
2872 | if (expect_false (!ev_is_active (w))) |
2346 | return; |
2873 | return; |
2347 | |
2874 | |
|
|
2875 | EV_FREQUENT_CHECK; |
|
|
2876 | |
2348 | ev_io_stop (EV_A_ &w->io); |
2877 | ev_io_stop (EV_A_ &w->io); |
2349 | ev_prepare_stop (EV_A_ &w->prepare); |
2878 | ev_prepare_stop (EV_A_ &w->prepare); |
2350 | |
2879 | |
2351 | ev_stop (EV_A_ (W)w); |
2880 | ev_stop (EV_A_ (W)w); |
|
|
2881 | |
|
|
2882 | EV_FREQUENT_CHECK; |
2352 | } |
2883 | } |
2353 | #endif |
2884 | #endif |
2354 | |
2885 | |
2355 | #if EV_FORK_ENABLE |
2886 | #if EV_FORK_ENABLE |
2356 | void |
2887 | void |
2357 | ev_fork_start (EV_P_ ev_fork *w) |
2888 | ev_fork_start (EV_P_ ev_fork *w) |
2358 | { |
2889 | { |
2359 | if (expect_false (ev_is_active (w))) |
2890 | if (expect_false (ev_is_active (w))) |
2360 | return; |
2891 | return; |
|
|
2892 | |
|
|
2893 | EV_FREQUENT_CHECK; |
2361 | |
2894 | |
2362 | ev_start (EV_A_ (W)w, ++forkcnt); |
2895 | ev_start (EV_A_ (W)w, ++forkcnt); |
2363 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2896 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2364 | forks [forkcnt - 1] = w; |
2897 | forks [forkcnt - 1] = w; |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
2365 | } |
2900 | } |
2366 | |
2901 | |
2367 | void |
2902 | void |
2368 | ev_fork_stop (EV_P_ ev_fork *w) |
2903 | ev_fork_stop (EV_P_ ev_fork *w) |
2369 | { |
2904 | { |
2370 | clear_pending (EV_A_ (W)w); |
2905 | clear_pending (EV_A_ (W)w); |
2371 | if (expect_false (!ev_is_active (w))) |
2906 | if (expect_false (!ev_is_active (w))) |
2372 | return; |
2907 | return; |
2373 | |
2908 | |
|
|
2909 | EV_FREQUENT_CHECK; |
|
|
2910 | |
2374 | { |
2911 | { |
2375 | int active = ((W)w)->active; |
2912 | int active = ev_active (w); |
|
|
2913 | |
2376 | forks [active - 1] = forks [--forkcnt]; |
2914 | forks [active - 1] = forks [--forkcnt]; |
2377 | ((W)forks [active - 1])->active = active; |
2915 | ev_active (forks [active - 1]) = active; |
2378 | } |
2916 | } |
2379 | |
2917 | |
2380 | ev_stop (EV_A_ (W)w); |
2918 | ev_stop (EV_A_ (W)w); |
|
|
2919 | |
|
|
2920 | EV_FREQUENT_CHECK; |
|
|
2921 | } |
|
|
2922 | #endif |
|
|
2923 | |
|
|
2924 | #if EV_ASYNC_ENABLE |
|
|
2925 | void |
|
|
2926 | ev_async_start (EV_P_ ev_async *w) |
|
|
2927 | { |
|
|
2928 | if (expect_false (ev_is_active (w))) |
|
|
2929 | return; |
|
|
2930 | |
|
|
2931 | evpipe_init (EV_A); |
|
|
2932 | |
|
|
2933 | EV_FREQUENT_CHECK; |
|
|
2934 | |
|
|
2935 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2936 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2937 | asyncs [asynccnt - 1] = w; |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
|
|
2940 | } |
|
|
2941 | |
|
|
2942 | void |
|
|
2943 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2944 | { |
|
|
2945 | clear_pending (EV_A_ (W)w); |
|
|
2946 | if (expect_false (!ev_is_active (w))) |
|
|
2947 | return; |
|
|
2948 | |
|
|
2949 | EV_FREQUENT_CHECK; |
|
|
2950 | |
|
|
2951 | { |
|
|
2952 | int active = ev_active (w); |
|
|
2953 | |
|
|
2954 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2955 | ev_active (asyncs [active - 1]) = active; |
|
|
2956 | } |
|
|
2957 | |
|
|
2958 | ev_stop (EV_A_ (W)w); |
|
|
2959 | |
|
|
2960 | EV_FREQUENT_CHECK; |
|
|
2961 | } |
|
|
2962 | |
|
|
2963 | void |
|
|
2964 | ev_async_send (EV_P_ ev_async *w) |
|
|
2965 | { |
|
|
2966 | w->sent = 1; |
|
|
2967 | evpipe_write (EV_A_ &gotasync); |
2381 | } |
2968 | } |
2382 | #endif |
2969 | #endif |
2383 | |
2970 | |
2384 | /*****************************************************************************/ |
2971 | /*****************************************************************************/ |
2385 | |
2972 | |