1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 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 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
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|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # endif |
|
|
63 | |
52 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
67 | # endif |
56 | # ifndef EV_USE_REALTIME |
68 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
69 | # define EV_USE_REALTIME 0 |
58 | # endif |
70 | # endif |
59 | # else |
71 | # else |
60 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
74 | # endif |
… | |
… | |
126 | # define EV_USE_EVENTFD 1 |
138 | # define EV_USE_EVENTFD 1 |
127 | # else |
139 | # else |
128 | # define EV_USE_EVENTFD 0 |
140 | # define EV_USE_EVENTFD 0 |
129 | # endif |
141 | # endif |
130 | # endif |
142 | # endif |
131 | |
143 | |
132 | #endif |
144 | #endif |
133 | |
145 | |
134 | #include <math.h> |
146 | #include <math.h> |
135 | #include <stdlib.h> |
147 | #include <stdlib.h> |
136 | #include <fcntl.h> |
148 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
166 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
167 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
168 | # include <sys/wait.h> |
157 | # include <unistd.h> |
169 | # include <unistd.h> |
158 | #else |
170 | #else |
|
|
171 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
172 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
173 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
176 | # endif |
164 | #endif |
177 | #endif |
165 | |
178 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
180 | |
|
|
181 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
182 | # if __linux && __GLIBC__ >= 2 |
|
|
183 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
184 | # else |
|
|
185 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
186 | # endif |
|
|
187 | #endif |
|
|
188 | |
168 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
|
|
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
191 | # define EV_USE_MONOTONIC 1 |
|
|
192 | # else |
169 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
|
|
194 | # endif |
170 | #endif |
195 | #endif |
171 | |
196 | |
172 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
199 | #endif |
175 | |
200 | |
176 | #ifndef EV_USE_NANOSLEEP |
201 | #ifndef EV_USE_NANOSLEEP |
|
|
202 | # if _POSIX_C_SOURCE >= 199309L |
|
|
203 | # define EV_USE_NANOSLEEP 1 |
|
|
204 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
205 | # define EV_USE_NANOSLEEP 0 |
|
|
206 | # endif |
178 | #endif |
207 | #endif |
179 | |
208 | |
180 | #ifndef EV_USE_SELECT |
209 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_SELECT 1 |
182 | #endif |
211 | #endif |
… | |
… | |
235 | # else |
264 | # else |
236 | # define EV_USE_EVENTFD 0 |
265 | # define EV_USE_EVENTFD 0 |
237 | # endif |
266 | # endif |
238 | #endif |
267 | #endif |
239 | |
268 | |
|
|
269 | #if 0 /* debugging */ |
|
|
270 | # define EV_VERIFY 3 |
|
|
271 | # define EV_USE_4HEAP 1 |
|
|
272 | # define EV_HEAP_CACHE_AT 1 |
|
|
273 | #endif |
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|
274 | |
|
|
275 | #ifndef EV_VERIFY |
|
|
276 | # define EV_VERIFY !EV_MINIMAL |
|
|
277 | #endif |
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278 | |
|
|
279 | #ifndef EV_USE_4HEAP |
|
|
280 | # define EV_USE_4HEAP !EV_MINIMAL |
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|
281 | #endif |
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282 | |
|
|
283 | #ifndef EV_HEAP_CACHE_AT |
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284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
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285 | #endif |
|
|
286 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
288 | |
242 | #ifndef CLOCK_MONOTONIC |
289 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
291 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
306 | # include <sys/select.h> |
260 | # endif |
307 | # endif |
261 | #endif |
308 | #endif |
262 | |
309 | |
263 | #if EV_USE_INOTIFY |
310 | #if EV_USE_INOTIFY |
|
|
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
313 | # include <sys/inotify.h> |
|
|
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
315 | # ifndef IN_DONT_FOLLOW |
|
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316 | # undef EV_USE_INOTIFY |
|
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317 | # define EV_USE_INOTIFY 0 |
|
|
318 | # endif |
265 | #endif |
319 | #endif |
266 | |
320 | |
267 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
322 | # include <winsock.h> |
|
|
323 | #endif |
|
|
324 | |
|
|
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
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327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
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330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
269 | #endif |
332 | #endif |
270 | |
333 | |
271 | #if EV_USE_EVENTFD |
334 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
336 | # include <stdint.h> |
… | |
… | |
279 | } |
342 | } |
280 | # endif |
343 | # endif |
281 | #endif |
344 | #endif |
282 | |
345 | |
283 | /**/ |
346 | /**/ |
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|
347 | |
|
|
348 | #if EV_VERIFY >= 3 |
|
|
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
350 | #else |
|
|
351 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
352 | #endif |
284 | |
353 | |
285 | /* |
354 | /* |
286 | * This is used to avoid floating point rounding problems. |
355 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
356 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
357 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
328 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
329 | |
398 | |
330 | #define ev_active(w) ((W)(w))->active |
399 | #define ev_active(w) ((W)(w))->active |
331 | #define ev_at(w) ((WT)(w))->at |
400 | #define ev_at(w) ((WT)(w))->at |
332 | |
401 | |
333 | #if EV_USE_MONOTONIC |
402 | #if EV_USE_REALTIME |
334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
335 | /* giving it a reasonably high chance of working on typical architetcures */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
406 | #endif |
|
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407 | |
|
|
408 | #if EV_USE_MONOTONIC |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
337 | #endif |
410 | #endif |
338 | |
411 | |
339 | #ifdef _WIN32 |
412 | #ifdef _WIN32 |
340 | # include "ev_win32.c" |
413 | # include "ev_win32.c" |
… | |
… | |
349 | { |
422 | { |
350 | syserr_cb = cb; |
423 | syserr_cb = cb; |
351 | } |
424 | } |
352 | |
425 | |
353 | static void noinline |
426 | static void noinline |
354 | syserr (const char *msg) |
427 | ev_syserr (const char *msg) |
355 | { |
428 | { |
356 | if (!msg) |
429 | if (!msg) |
357 | msg = "(libev) system error"; |
430 | msg = "(libev) system error"; |
358 | |
431 | |
359 | if (syserr_cb) |
432 | if (syserr_cb) |
… | |
… | |
410 | typedef struct |
483 | typedef struct |
411 | { |
484 | { |
412 | WL head; |
485 | WL head; |
413 | unsigned char events; |
486 | unsigned char events; |
414 | unsigned char reify; |
487 | unsigned char reify; |
|
|
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
|
|
489 | unsigned char unused; |
|
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490 | #if EV_USE_EPOLL |
|
|
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
492 | #endif |
415 | #if EV_SELECT_IS_WINSOCKET |
493 | #if EV_SELECT_IS_WINSOCKET |
416 | SOCKET handle; |
494 | SOCKET handle; |
417 | #endif |
495 | #endif |
418 | } ANFD; |
496 | } ANFD; |
419 | |
497 | |
… | |
… | |
422 | W w; |
500 | W w; |
423 | int events; |
501 | int events; |
424 | } ANPENDING; |
502 | } ANPENDING; |
425 | |
503 | |
426 | #if EV_USE_INOTIFY |
504 | #if EV_USE_INOTIFY |
|
|
505 | /* hash table entry per inotify-id */ |
427 | typedef struct |
506 | typedef struct |
428 | { |
507 | { |
429 | WL head; |
508 | WL head; |
430 | } ANFS; |
509 | } ANFS; |
|
|
510 | #endif |
|
|
511 | |
|
|
512 | /* Heap Entry */ |
|
|
513 | #if EV_HEAP_CACHE_AT |
|
|
514 | typedef struct { |
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515 | ev_tstamp at; |
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516 | WT w; |
|
|
517 | } ANHE; |
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518 | |
|
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519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
522 | #else |
|
|
523 | typedef WT ANHE; |
|
|
524 | |
|
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525 | #define ANHE_w(he) (he) |
|
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526 | #define ANHE_at(he) (he)->at |
|
|
527 | #define ANHE_at_cache(he) |
431 | #endif |
528 | #endif |
432 | |
529 | |
433 | #if EV_MULTIPLICITY |
530 | #if EV_MULTIPLICITY |
434 | |
531 | |
435 | struct ev_loop |
532 | struct ev_loop |
… | |
… | |
460 | |
557 | |
461 | ev_tstamp |
558 | ev_tstamp |
462 | ev_time (void) |
559 | ev_time (void) |
463 | { |
560 | { |
464 | #if EV_USE_REALTIME |
561 | #if EV_USE_REALTIME |
|
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562 | if (expect_true (have_realtime)) |
|
|
563 | { |
465 | struct timespec ts; |
564 | struct timespec ts; |
466 | clock_gettime (CLOCK_REALTIME, &ts); |
565 | clock_gettime (CLOCK_REALTIME, &ts); |
467 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
468 | #else |
567 | } |
|
|
568 | #endif |
|
|
569 | |
469 | struct timeval tv; |
570 | struct timeval tv; |
470 | gettimeofday (&tv, 0); |
571 | gettimeofday (&tv, 0); |
471 | return tv.tv_sec + tv.tv_usec * 1e-6; |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
472 | #endif |
|
|
473 | } |
573 | } |
474 | |
574 | |
475 | ev_tstamp inline_size |
575 | inline_size ev_tstamp |
476 | get_clock (void) |
576 | get_clock (void) |
477 | { |
577 | { |
478 | #if EV_USE_MONOTONIC |
578 | #if EV_USE_MONOTONIC |
479 | if (expect_true (have_monotonic)) |
579 | if (expect_true (have_monotonic)) |
480 | { |
580 | { |
… | |
… | |
513 | struct timeval tv; |
613 | struct timeval tv; |
514 | |
614 | |
515 | tv.tv_sec = (time_t)delay; |
615 | tv.tv_sec = (time_t)delay; |
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
517 | |
617 | |
|
|
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
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619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
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620 | /* by older ones */ |
518 | select (0, 0, 0, 0, &tv); |
621 | select (0, 0, 0, 0, &tv); |
519 | #endif |
622 | #endif |
520 | } |
623 | } |
521 | } |
624 | } |
522 | |
625 | |
523 | /*****************************************************************************/ |
626 | /*****************************************************************************/ |
524 | |
627 | |
525 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
526 | |
629 | |
527 | int inline_size |
630 | inline_size int |
528 | array_nextsize (int elem, int cur, int cnt) |
631 | array_nextsize (int elem, int cur, int cnt) |
529 | { |
632 | { |
530 | int ncur = cur + 1; |
633 | int ncur = cur + 1; |
531 | |
634 | |
532 | do |
635 | do |
… | |
… | |
549 | array_realloc (int elem, void *base, int *cur, int cnt) |
652 | array_realloc (int elem, void *base, int *cur, int cnt) |
550 | { |
653 | { |
551 | *cur = array_nextsize (elem, *cur, cnt); |
654 | *cur = array_nextsize (elem, *cur, cnt); |
552 | return ev_realloc (base, elem * *cur); |
655 | return ev_realloc (base, elem * *cur); |
553 | } |
656 | } |
|
|
657 | |
|
|
658 | #define array_init_zero(base,count) \ |
|
|
659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
554 | |
660 | |
555 | #define array_needsize(type,base,cur,cnt,init) \ |
661 | #define array_needsize(type,base,cur,cnt,init) \ |
556 | if (expect_false ((cnt) > (cur))) \ |
662 | if (expect_false ((cnt) > (cur))) \ |
557 | { \ |
663 | { \ |
558 | int ocur_ = (cur); \ |
664 | int ocur_ = (cur); \ |
… | |
… | |
570 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
676 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
571 | } |
677 | } |
572 | #endif |
678 | #endif |
573 | |
679 | |
574 | #define array_free(stem, idx) \ |
680 | #define array_free(stem, idx) \ |
575 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
576 | |
682 | |
577 | /*****************************************************************************/ |
683 | /*****************************************************************************/ |
578 | |
684 | |
579 | void noinline |
685 | void noinline |
580 | ev_feed_event (EV_P_ void *w, int revents) |
686 | ev_feed_event (EV_P_ void *w, int revents) |
… | |
… | |
591 | pendings [pri][w_->pending - 1].w = w_; |
697 | pendings [pri][w_->pending - 1].w = w_; |
592 | pendings [pri][w_->pending - 1].events = revents; |
698 | pendings [pri][w_->pending - 1].events = revents; |
593 | } |
699 | } |
594 | } |
700 | } |
595 | |
701 | |
596 | void inline_speed |
702 | inline_speed void |
|
|
703 | feed_reverse (EV_P_ W w) |
|
|
704 | { |
|
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705 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
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706 | rfeeds [rfeedcnt++] = w; |
|
|
707 | } |
|
|
708 | |
|
|
709 | inline_size void |
|
|
710 | feed_reverse_done (EV_P_ int revents) |
|
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711 | { |
|
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712 | do |
|
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713 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
714 | while (rfeedcnt); |
|
|
715 | } |
|
|
716 | |
|
|
717 | inline_speed void |
597 | queue_events (EV_P_ W *events, int eventcnt, int type) |
718 | queue_events (EV_P_ W *events, int eventcnt, int type) |
598 | { |
719 | { |
599 | int i; |
720 | int i; |
600 | |
721 | |
601 | for (i = 0; i < eventcnt; ++i) |
722 | for (i = 0; i < eventcnt; ++i) |
602 | ev_feed_event (EV_A_ events [i], type); |
723 | ev_feed_event (EV_A_ events [i], type); |
603 | } |
724 | } |
604 | |
725 | |
605 | /*****************************************************************************/ |
726 | /*****************************************************************************/ |
606 | |
727 | |
607 | void inline_size |
728 | inline_speed void |
608 | anfds_init (ANFD *base, int count) |
|
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609 | { |
|
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610 | while (count--) |
|
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611 | { |
|
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612 | base->head = 0; |
|
|
613 | base->events = EV_NONE; |
|
|
614 | base->reify = 0; |
|
|
615 | |
|
|
616 | ++base; |
|
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617 | } |
|
|
618 | } |
|
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619 | |
|
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620 | void inline_speed |
|
|
621 | fd_event (EV_P_ int fd, int revents) |
729 | fd_event (EV_P_ int fd, int revents) |
622 | { |
730 | { |
623 | ANFD *anfd = anfds + fd; |
731 | ANFD *anfd = anfds + fd; |
624 | ev_io *w; |
732 | ev_io *w; |
625 | |
733 | |
… | |
… | |
637 | { |
745 | { |
638 | if (fd >= 0 && fd < anfdmax) |
746 | if (fd >= 0 && fd < anfdmax) |
639 | fd_event (EV_A_ fd, revents); |
747 | fd_event (EV_A_ fd, revents); |
640 | } |
748 | } |
641 | |
749 | |
642 | void inline_size |
750 | inline_size void |
643 | fd_reify (EV_P) |
751 | fd_reify (EV_P) |
644 | { |
752 | { |
645 | int i; |
753 | int i; |
646 | |
754 | |
647 | for (i = 0; i < fdchangecnt; ++i) |
755 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
656 | events |= (unsigned char)w->events; |
764 | events |= (unsigned char)w->events; |
657 | |
765 | |
658 | #if EV_SELECT_IS_WINSOCKET |
766 | #if EV_SELECT_IS_WINSOCKET |
659 | if (events) |
767 | if (events) |
660 | { |
768 | { |
661 | unsigned long argp; |
769 | unsigned long arg; |
662 | #ifdef EV_FD_TO_WIN32_HANDLE |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
663 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
664 | #else |
772 | #else |
665 | anfd->handle = _get_osfhandle (fd); |
773 | anfd->handle = _get_osfhandle (fd); |
666 | #endif |
774 | #endif |
667 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
668 | } |
776 | } |
669 | #endif |
777 | #endif |
670 | |
778 | |
671 | { |
779 | { |
672 | unsigned char o_events = anfd->events; |
780 | unsigned char o_events = anfd->events; |
673 | unsigned char o_reify = anfd->reify; |
781 | unsigned char o_reify = anfd->reify; |
674 | |
782 | |
675 | anfd->reify = 0; |
783 | anfd->reify = 0; |
676 | anfd->events = events; |
784 | anfd->events = events; |
677 | |
785 | |
678 | if (o_events != events || o_reify & EV_IOFDSET) |
786 | if (o_events != events || o_reify & EV__IOFDSET) |
679 | backend_modify (EV_A_ fd, o_events, events); |
787 | backend_modify (EV_A_ fd, o_events, events); |
680 | } |
788 | } |
681 | } |
789 | } |
682 | |
790 | |
683 | fdchangecnt = 0; |
791 | fdchangecnt = 0; |
684 | } |
792 | } |
685 | |
793 | |
686 | void inline_size |
794 | inline_size void |
687 | fd_change (EV_P_ int fd, int flags) |
795 | fd_change (EV_P_ int fd, int flags) |
688 | { |
796 | { |
689 | unsigned char reify = anfds [fd].reify; |
797 | unsigned char reify = anfds [fd].reify; |
690 | anfds [fd].reify |= flags; |
798 | anfds [fd].reify |= flags; |
691 | |
799 | |
… | |
… | |
695 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
696 | fdchanges [fdchangecnt - 1] = fd; |
804 | fdchanges [fdchangecnt - 1] = fd; |
697 | } |
805 | } |
698 | } |
806 | } |
699 | |
807 | |
700 | void inline_speed |
808 | inline_speed void |
701 | fd_kill (EV_P_ int fd) |
809 | fd_kill (EV_P_ int fd) |
702 | { |
810 | { |
703 | ev_io *w; |
811 | ev_io *w; |
704 | |
812 | |
705 | while ((w = (ev_io *)anfds [fd].head)) |
813 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
707 | ev_io_stop (EV_A_ w); |
815 | ev_io_stop (EV_A_ w); |
708 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
709 | } |
817 | } |
710 | } |
818 | } |
711 | |
819 | |
712 | int inline_size |
820 | inline_size int |
713 | fd_valid (int fd) |
821 | fd_valid (int fd) |
714 | { |
822 | { |
715 | #ifdef _WIN32 |
823 | #ifdef _WIN32 |
716 | return _get_osfhandle (fd) != -1; |
824 | return _get_osfhandle (fd) != -1; |
717 | #else |
825 | #else |
… | |
… | |
725 | { |
833 | { |
726 | int fd; |
834 | int fd; |
727 | |
835 | |
728 | for (fd = 0; fd < anfdmax; ++fd) |
836 | for (fd = 0; fd < anfdmax; ++fd) |
729 | if (anfds [fd].events) |
837 | if (anfds [fd].events) |
730 | if (!fd_valid (fd) == -1 && errno == EBADF) |
838 | if (!fd_valid (fd) && errno == EBADF) |
731 | fd_kill (EV_A_ fd); |
839 | fd_kill (EV_A_ fd); |
732 | } |
840 | } |
733 | |
841 | |
734 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
842 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
735 | static void noinline |
843 | static void noinline |
… | |
… | |
753 | |
861 | |
754 | for (fd = 0; fd < anfdmax; ++fd) |
862 | for (fd = 0; fd < anfdmax; ++fd) |
755 | if (anfds [fd].events) |
863 | if (anfds [fd].events) |
756 | { |
864 | { |
757 | anfds [fd].events = 0; |
865 | anfds [fd].events = 0; |
|
|
866 | anfds [fd].emask = 0; |
758 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
759 | } |
868 | } |
760 | } |
869 | } |
761 | |
870 | |
762 | /*****************************************************************************/ |
871 | /*****************************************************************************/ |
|
|
872 | |
|
|
873 | /* |
|
|
874 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
875 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
876 | * the branching factor of the d-tree. |
|
|
877 | */ |
763 | |
878 | |
764 | /* |
879 | /* |
765 | * at the moment we allow libev the luxury of two heaps, |
880 | * at the moment we allow libev the luxury of two heaps, |
766 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
881 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
767 | * which is more cache-efficient. |
882 | * which is more cache-efficient. |
768 | * the difference is about 5% with 50000+ watchers. |
883 | * the difference is about 5% with 50000+ watchers. |
769 | */ |
884 | */ |
770 | #define USE_4HEAP !EV_MINIMAL |
|
|
771 | #if USE_4HEAP |
885 | #if EV_USE_4HEAP |
772 | |
886 | |
|
|
887 | #define DHEAP 4 |
773 | #define HEAP0 3 /* index of first element in heap */ |
888 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
889 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
890 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
774 | |
891 | |
775 | /* towards the root */ |
892 | /* away from the root */ |
776 | void inline_speed |
893 | inline_speed void |
777 | upheap (WT *heap, int k) |
894 | downheap (ANHE *heap, int N, int k) |
778 | { |
895 | { |
779 | WT w = heap [k]; |
896 | ANHE he = heap [k]; |
|
|
897 | ANHE *E = heap + N + HEAP0; |
780 | |
898 | |
781 | for (;;) |
899 | for (;;) |
782 | { |
900 | { |
783 | int p = ((k - HEAP0 - 1) / 4) + HEAP0; |
|
|
784 | |
|
|
785 | if (p >= HEAP0 || heap [p]->at <= w->at) |
|
|
786 | break; |
|
|
787 | |
|
|
788 | heap [k] = heap [p]; |
|
|
789 | ev_active (heap [k]) = k; |
|
|
790 | k = p; |
|
|
791 | } |
|
|
792 | |
|
|
793 | heap [k] = w; |
|
|
794 | ev_active (heap [k]) = k; |
|
|
795 | } |
|
|
796 | |
|
|
797 | /* away from the root */ |
|
|
798 | void inline_speed |
|
|
799 | downheap (WT *heap, int N, int k) |
|
|
800 | { |
|
|
801 | WT w = heap [k]; |
|
|
802 | WT *E = heap + N + HEAP0; |
|
|
803 | |
|
|
804 | for (;;) |
|
|
805 | { |
|
|
806 | ev_tstamp minat; |
901 | ev_tstamp minat; |
807 | WT *minpos; |
902 | ANHE *minpos; |
808 | WT *pos = heap + 4 * (k - HEAP0) + HEAP0; |
903 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
809 | |
904 | |
810 | // find minimum child |
905 | /* find minimum child */ |
811 | if (expect_true (pos +3 < E)) |
906 | if (expect_true (pos + DHEAP - 1 < E)) |
812 | { |
907 | { |
813 | (minpos = pos + 0), (minat = (*minpos)->at); |
908 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
814 | if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
909 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
815 | if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
910 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
816 | if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
911 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
912 | } |
|
|
913 | else if (pos < E) |
|
|
914 | { |
|
|
915 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
916 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
917 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
918 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
817 | } |
919 | } |
818 | else |
920 | else |
819 | { |
|
|
820 | if (pos >= E) |
|
|
821 | break; |
|
|
822 | |
|
|
823 | (minpos = pos + 0), (minat = (*minpos)->at); |
|
|
824 | if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
|
|
825 | if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
|
|
826 | if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
|
|
827 | } |
|
|
828 | |
|
|
829 | if (w->at <= minat) |
|
|
830 | break; |
921 | break; |
831 | |
922 | |
832 | ev_active (*minpos) = k; |
923 | if (ANHE_at (he) <= minat) |
|
|
924 | break; |
|
|
925 | |
833 | heap [k] = *minpos; |
926 | heap [k] = *minpos; |
|
|
927 | ev_active (ANHE_w (*minpos)) = k; |
834 | |
928 | |
835 | k = minpos - heap; |
929 | k = minpos - heap; |
836 | } |
930 | } |
837 | |
931 | |
838 | heap [k] = w; |
932 | heap [k] = he; |
839 | ev_active (heap [k]) = k; |
933 | ev_active (ANHE_w (he)) = k; |
840 | } |
934 | } |
841 | |
935 | |
842 | #else // 4HEAP |
936 | #else /* 4HEAP */ |
843 | |
937 | |
844 | #define HEAP0 1 |
938 | #define HEAP0 1 |
|
|
939 | #define HPARENT(k) ((k) >> 1) |
|
|
940 | #define UPHEAP_DONE(p,k) (!(p)) |
845 | |
941 | |
846 | /* towards the root */ |
942 | /* away from the root */ |
847 | void inline_speed |
943 | inline_speed void |
848 | upheap (WT *heap, int k) |
944 | downheap (ANHE *heap, int N, int k) |
849 | { |
945 | { |
850 | WT w = heap [k]; |
946 | ANHE he = heap [k]; |
851 | |
947 | |
852 | for (;;) |
948 | for (;;) |
853 | { |
949 | { |
854 | int p = k >> 1; |
950 | int c = k << 1; |
855 | |
951 | |
856 | /* maybe we could use a dummy element at heap [0]? */ |
952 | if (c > N + HEAP0 - 1) |
857 | if (!p || heap [p]->at <= w->at) |
|
|
858 | break; |
953 | break; |
859 | |
954 | |
860 | heap [k] = heap [p]; |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
861 | ev_active (heap [k]) = k; |
956 | ? 1 : 0; |
862 | k = p; |
|
|
863 | } |
|
|
864 | |
957 | |
865 | heap [k] = w; |
958 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
866 | ev_active (heap [k]) = k; |
|
|
867 | } |
|
|
868 | |
|
|
869 | /* away from the root */ |
|
|
870 | void inline_speed |
|
|
871 | downheap (WT *heap, int N, int k) |
|
|
872 | { |
|
|
873 | WT w = heap [k]; |
|
|
874 | |
|
|
875 | for (;;) |
|
|
876 | { |
|
|
877 | int c = k << 1; |
|
|
878 | |
|
|
879 | if (c > N) |
|
|
880 | break; |
959 | break; |
881 | |
960 | |
882 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
883 | ? 1 : 0; |
|
|
884 | |
|
|
885 | if (w->at <= heap [c]->at) |
|
|
886 | break; |
|
|
887 | |
|
|
888 | heap [k] = heap [c]; |
961 | heap [k] = heap [c]; |
889 | ((W)heap [k])->active = k; |
962 | ev_active (ANHE_w (heap [k])) = k; |
890 | |
963 | |
891 | k = c; |
964 | k = c; |
892 | } |
965 | } |
893 | |
966 | |
894 | heap [k] = w; |
967 | heap [k] = he; |
|
|
968 | ev_active (ANHE_w (he)) = k; |
|
|
969 | } |
|
|
970 | #endif |
|
|
971 | |
|
|
972 | /* towards the root */ |
|
|
973 | inline_speed void |
|
|
974 | upheap (ANHE *heap, int k) |
|
|
975 | { |
|
|
976 | ANHE he = heap [k]; |
|
|
977 | |
|
|
978 | for (;;) |
|
|
979 | { |
|
|
980 | int p = HPARENT (k); |
|
|
981 | |
|
|
982 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
983 | break; |
|
|
984 | |
|
|
985 | heap [k] = heap [p]; |
895 | ev_active (heap [k]) = k; |
986 | ev_active (ANHE_w (heap [k])) = k; |
896 | } |
987 | k = p; |
897 | #endif |
988 | } |
898 | |
989 | |
899 | void inline_size |
990 | heap [k] = he; |
|
|
991 | ev_active (ANHE_w (he)) = k; |
|
|
992 | } |
|
|
993 | |
|
|
994 | inline_size void |
900 | adjustheap (WT *heap, int N, int k) |
995 | adjustheap (ANHE *heap, int N, int k) |
901 | { |
996 | { |
|
|
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
902 | upheap (heap, k); |
998 | upheap (heap, k); |
|
|
999 | else |
903 | downheap (heap, N, k); |
1000 | downheap (heap, N, k); |
|
|
1001 | } |
|
|
1002 | |
|
|
1003 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1004 | inline_size void |
|
|
1005 | reheap (ANHE *heap, int N) |
|
|
1006 | { |
|
|
1007 | int i; |
|
|
1008 | |
|
|
1009 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1010 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1011 | for (i = 0; i < N; ++i) |
|
|
1012 | upheap (heap, i + HEAP0); |
904 | } |
1013 | } |
905 | |
1014 | |
906 | /*****************************************************************************/ |
1015 | /*****************************************************************************/ |
907 | |
1016 | |
908 | typedef struct |
1017 | typedef struct |
… | |
… | |
914 | static ANSIG *signals; |
1023 | static ANSIG *signals; |
915 | static int signalmax; |
1024 | static int signalmax; |
916 | |
1025 | |
917 | static EV_ATOMIC_T gotsig; |
1026 | static EV_ATOMIC_T gotsig; |
918 | |
1027 | |
919 | void inline_size |
|
|
920 | signals_init (ANSIG *base, int count) |
|
|
921 | { |
|
|
922 | while (count--) |
|
|
923 | { |
|
|
924 | base->head = 0; |
|
|
925 | base->gotsig = 0; |
|
|
926 | |
|
|
927 | ++base; |
|
|
928 | } |
|
|
929 | } |
|
|
930 | |
|
|
931 | /*****************************************************************************/ |
1028 | /*****************************************************************************/ |
932 | |
1029 | |
933 | void inline_speed |
1030 | inline_speed void |
934 | fd_intern (int fd) |
1031 | fd_intern (int fd) |
935 | { |
1032 | { |
936 | #ifdef _WIN32 |
1033 | #ifdef _WIN32 |
937 | int arg = 1; |
1034 | unsigned long arg = 1; |
938 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
939 | #else |
1036 | #else |
940 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
941 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
942 | #endif |
1039 | #endif |
… | |
… | |
956 | } |
1053 | } |
957 | else |
1054 | else |
958 | #endif |
1055 | #endif |
959 | { |
1056 | { |
960 | while (pipe (evpipe)) |
1057 | while (pipe (evpipe)) |
961 | syserr ("(libev) error creating signal/async pipe"); |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
962 | |
1059 | |
963 | fd_intern (evpipe [0]); |
1060 | fd_intern (evpipe [0]); |
964 | fd_intern (evpipe [1]); |
1061 | fd_intern (evpipe [1]); |
965 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
966 | } |
1063 | } |
… | |
… | |
968 | ev_io_start (EV_A_ &pipeev); |
1065 | ev_io_start (EV_A_ &pipeev); |
969 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
970 | } |
1067 | } |
971 | } |
1068 | } |
972 | |
1069 | |
973 | void inline_size |
1070 | inline_size void |
974 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
975 | { |
1072 | { |
976 | if (!*flag) |
1073 | if (!*flag) |
977 | { |
1074 | { |
978 | int old_errno = errno; /* save errno because write might clobber it */ |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1056 | ev_feed_signal_event (EV_P_ int signum) |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1057 | { |
1154 | { |
1058 | WL w; |
1155 | WL w; |
1059 | |
1156 | |
1060 | #if EV_MULTIPLICITY |
1157 | #if EV_MULTIPLICITY |
1061 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1062 | #endif |
1159 | #endif |
1063 | |
1160 | |
1064 | --signum; |
1161 | --signum; |
1065 | |
1162 | |
1066 | if (signum < 0 || signum >= signalmax) |
1163 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1082 | |
1179 | |
1083 | #ifndef WIFCONTINUED |
1180 | #ifndef WIFCONTINUED |
1084 | # define WIFCONTINUED(status) 0 |
1181 | # define WIFCONTINUED(status) 0 |
1085 | #endif |
1182 | #endif |
1086 | |
1183 | |
1087 | void inline_speed |
1184 | inline_speed void |
1088 | child_reap (EV_P_ int chain, int pid, int status) |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1089 | { |
1186 | { |
1090 | ev_child *w; |
1187 | ev_child *w; |
1091 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1092 | |
1189 | |
… | |
… | |
1195 | /* kqueue is borked on everything but netbsd apparently */ |
1292 | /* kqueue is borked on everything but netbsd apparently */ |
1196 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1293 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1197 | flags &= ~EVBACKEND_KQUEUE; |
1294 | flags &= ~EVBACKEND_KQUEUE; |
1198 | #endif |
1295 | #endif |
1199 | #ifdef __APPLE__ |
1296 | #ifdef __APPLE__ |
1200 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1297 | /* only select works correctly on that "unix-certified" platform */ |
1201 | flags &= ~EVBACKEND_POLL; |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1202 | #endif |
1300 | #endif |
1203 | |
1301 | |
1204 | return flags; |
1302 | return flags; |
1205 | } |
1303 | } |
1206 | |
1304 | |
… | |
… | |
1243 | static void noinline |
1341 | static void noinline |
1244 | loop_init (EV_P_ unsigned int flags) |
1342 | loop_init (EV_P_ unsigned int flags) |
1245 | { |
1343 | { |
1246 | if (!backend) |
1344 | if (!backend) |
1247 | { |
1345 | { |
|
|
1346 | #if EV_USE_REALTIME |
|
|
1347 | if (!have_realtime) |
|
|
1348 | { |
|
|
1349 | struct timespec ts; |
|
|
1350 | |
|
|
1351 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1352 | have_realtime = 1; |
|
|
1353 | } |
|
|
1354 | #endif |
|
|
1355 | |
1248 | #if EV_USE_MONOTONIC |
1356 | #if EV_USE_MONOTONIC |
|
|
1357 | if (!have_monotonic) |
1249 | { |
1358 | { |
1250 | struct timespec ts; |
1359 | struct timespec ts; |
|
|
1360 | |
1251 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1252 | have_monotonic = 1; |
1362 | have_monotonic = 1; |
1253 | } |
1363 | } |
1254 | #endif |
1364 | #endif |
1255 | |
1365 | |
1256 | ev_rt_now = ev_time (); |
1366 | ev_rt_now = ev_time (); |
1257 | mn_now = get_clock (); |
1367 | mn_now = get_clock (); |
1258 | now_floor = mn_now; |
1368 | now_floor = mn_now; |
… | |
… | |
1357 | } |
1467 | } |
1358 | |
1468 | |
1359 | ev_free (anfds); anfdmax = 0; |
1469 | ev_free (anfds); anfdmax = 0; |
1360 | |
1470 | |
1361 | /* have to use the microsoft-never-gets-it-right macro */ |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1472 | array_free (rfeed, EMPTY); |
1362 | array_free (fdchange, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1363 | array_free (timer, EMPTY); |
1474 | array_free (timer, EMPTY); |
1364 | #if EV_PERIODIC_ENABLE |
1475 | #if EV_PERIODIC_ENABLE |
1365 | array_free (periodic, EMPTY); |
1476 | array_free (periodic, EMPTY); |
1366 | #endif |
1477 | #endif |
… | |
… | |
1375 | |
1486 | |
1376 | backend = 0; |
1487 | backend = 0; |
1377 | } |
1488 | } |
1378 | |
1489 | |
1379 | #if EV_USE_INOTIFY |
1490 | #if EV_USE_INOTIFY |
1380 | void inline_size infy_fork (EV_P); |
1491 | inline_size void infy_fork (EV_P); |
1381 | #endif |
1492 | #endif |
1382 | |
1493 | |
1383 | void inline_size |
1494 | inline_size void |
1384 | loop_fork (EV_P) |
1495 | loop_fork (EV_P) |
1385 | { |
1496 | { |
1386 | #if EV_USE_PORT |
1497 | #if EV_USE_PORT |
1387 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1498 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1388 | #endif |
1499 | #endif |
… | |
… | |
1426 | |
1537 | |
1427 | postfork = 0; |
1538 | postfork = 0; |
1428 | } |
1539 | } |
1429 | |
1540 | |
1430 | #if EV_MULTIPLICITY |
1541 | #if EV_MULTIPLICITY |
|
|
1542 | |
1431 | struct ev_loop * |
1543 | struct ev_loop * |
1432 | ev_loop_new (unsigned int flags) |
1544 | ev_loop_new (unsigned int flags) |
1433 | { |
1545 | { |
1434 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1435 | |
1547 | |
… | |
… | |
1453 | void |
1565 | void |
1454 | ev_loop_fork (EV_P) |
1566 | ev_loop_fork (EV_P) |
1455 | { |
1567 | { |
1456 | postfork = 1; /* must be in line with ev_default_fork */ |
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
1457 | } |
1569 | } |
|
|
1570 | |
|
|
1571 | #if EV_VERIFY |
|
|
1572 | static void noinline |
|
|
1573 | verify_watcher (EV_P_ W w) |
|
|
1574 | { |
|
|
1575 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1576 | |
|
|
1577 | if (w->pending) |
|
|
1578 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1579 | } |
|
|
1580 | |
|
|
1581 | static void noinline |
|
|
1582 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1583 | { |
|
|
1584 | int i; |
|
|
1585 | |
|
|
1586 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1587 | { |
|
|
1588 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1589 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1590 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1591 | |
|
|
1592 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1593 | } |
|
|
1594 | } |
|
|
1595 | |
|
|
1596 | static void noinline |
|
|
1597 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1598 | { |
|
|
1599 | while (cnt--) |
|
|
1600 | { |
|
|
1601 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1602 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1603 | } |
|
|
1604 | } |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | void |
|
|
1608 | ev_loop_verify (EV_P) |
|
|
1609 | { |
|
|
1610 | #if EV_VERIFY |
|
|
1611 | int i; |
|
|
1612 | WL w; |
|
|
1613 | |
|
|
1614 | assert (activecnt >= -1); |
|
|
1615 | |
|
|
1616 | assert (fdchangemax >= fdchangecnt); |
|
|
1617 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1618 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1619 | |
|
|
1620 | assert (anfdmax >= 0); |
|
|
1621 | for (i = 0; i < anfdmax; ++i) |
|
|
1622 | for (w = anfds [i].head; w; w = w->next) |
|
|
1623 | { |
|
|
1624 | verify_watcher (EV_A_ (W)w); |
|
|
1625 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1626 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1627 | } |
|
|
1628 | |
|
|
1629 | assert (timermax >= timercnt); |
|
|
1630 | verify_heap (EV_A_ timers, timercnt); |
|
|
1631 | |
|
|
1632 | #if EV_PERIODIC_ENABLE |
|
|
1633 | assert (periodicmax >= periodiccnt); |
|
|
1634 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1635 | #endif |
|
|
1636 | |
|
|
1637 | for (i = NUMPRI; i--; ) |
|
|
1638 | { |
|
|
1639 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1640 | #if EV_IDLE_ENABLE |
|
|
1641 | assert (idleall >= 0); |
|
|
1642 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1643 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1644 | #endif |
|
|
1645 | } |
|
|
1646 | |
|
|
1647 | #if EV_FORK_ENABLE |
|
|
1648 | assert (forkmax >= forkcnt); |
|
|
1649 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1650 | #endif |
|
|
1651 | |
|
|
1652 | #if EV_ASYNC_ENABLE |
|
|
1653 | assert (asyncmax >= asynccnt); |
|
|
1654 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1655 | #endif |
|
|
1656 | |
|
|
1657 | assert (preparemax >= preparecnt); |
|
|
1658 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1659 | |
|
|
1660 | assert (checkmax >= checkcnt); |
|
|
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1662 | |
|
|
1663 | # if 0 |
|
|
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1458 | #endif |
1666 | # endif |
|
|
1667 | #endif |
|
|
1668 | } |
|
|
1669 | |
|
|
1670 | #endif /* multiplicity */ |
1459 | |
1671 | |
1460 | #if EV_MULTIPLICITY |
1672 | #if EV_MULTIPLICITY |
1461 | struct ev_loop * |
1673 | struct ev_loop * |
1462 | ev_default_loop_init (unsigned int flags) |
1674 | ev_default_loop_init (unsigned int flags) |
1463 | #else |
1675 | #else |
… | |
… | |
1496 | { |
1708 | { |
1497 | #if EV_MULTIPLICITY |
1709 | #if EV_MULTIPLICITY |
1498 | struct ev_loop *loop = ev_default_loop_ptr; |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
1499 | #endif |
1711 | #endif |
1500 | |
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
1501 | #ifndef _WIN32 |
1715 | #ifndef _WIN32 |
1502 | ev_ref (EV_A); /* child watcher */ |
1716 | ev_ref (EV_A); /* child watcher */ |
1503 | ev_signal_stop (EV_A_ &childev); |
1717 | ev_signal_stop (EV_A_ &childev); |
1504 | #endif |
1718 | #endif |
1505 | |
1719 | |
… | |
… | |
1511 | { |
1725 | { |
1512 | #if EV_MULTIPLICITY |
1726 | #if EV_MULTIPLICITY |
1513 | struct ev_loop *loop = ev_default_loop_ptr; |
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
1514 | #endif |
1728 | #endif |
1515 | |
1729 | |
1516 | if (backend) |
|
|
1517 | postfork = 1; /* must be in line with ev_loop_fork */ |
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
1518 | } |
1731 | } |
1519 | |
1732 | |
1520 | /*****************************************************************************/ |
1733 | /*****************************************************************************/ |
1521 | |
1734 | |
1522 | void |
1735 | void |
1523 | ev_invoke (EV_P_ void *w, int revents) |
1736 | ev_invoke (EV_P_ void *w, int revents) |
1524 | { |
1737 | { |
1525 | EV_CB_INVOKE ((W)w, revents); |
1738 | EV_CB_INVOKE ((W)w, revents); |
1526 | } |
1739 | } |
1527 | |
1740 | |
1528 | void inline_speed |
1741 | inline_speed void |
1529 | call_pending (EV_P) |
1742 | call_pending (EV_P) |
1530 | { |
1743 | { |
1531 | int pri; |
1744 | int pri; |
1532 | |
1745 | |
1533 | for (pri = NUMPRI; pri--; ) |
1746 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1535 | { |
1748 | { |
1536 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1537 | |
1750 | |
1538 | if (expect_true (p->w)) |
1751 | if (expect_true (p->w)) |
1539 | { |
1752 | { |
1540 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1541 | |
1754 | |
1542 | p->w->pending = 0; |
1755 | p->w->pending = 0; |
1543 | EV_CB_INVOKE (p->w, p->events); |
1756 | EV_CB_INVOKE (p->w, p->events); |
|
|
1757 | EV_FREQUENT_CHECK; |
1544 | } |
1758 | } |
1545 | } |
1759 | } |
1546 | } |
1760 | } |
1547 | |
1761 | |
1548 | #if EV_IDLE_ENABLE |
1762 | #if EV_IDLE_ENABLE |
1549 | void inline_size |
1763 | inline_size void |
1550 | idle_reify (EV_P) |
1764 | idle_reify (EV_P) |
1551 | { |
1765 | { |
1552 | if (expect_false (idleall)) |
1766 | if (expect_false (idleall)) |
1553 | { |
1767 | { |
1554 | int pri; |
1768 | int pri; |
… | |
… | |
1566 | } |
1780 | } |
1567 | } |
1781 | } |
1568 | } |
1782 | } |
1569 | #endif |
1783 | #endif |
1570 | |
1784 | |
1571 | void inline_size |
1785 | inline_size void |
1572 | timers_reify (EV_P) |
1786 | timers_reify (EV_P) |
1573 | { |
1787 | { |
|
|
1788 | EV_FREQUENT_CHECK; |
|
|
1789 | |
1574 | while (timercnt && ev_at (timers [HEAP0]) <= mn_now) |
1790 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1575 | { |
1791 | { |
1576 | ev_timer *w = (ev_timer *)timers [HEAP0]; |
1792 | do |
1577 | |
|
|
1578 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1579 | |
|
|
1580 | /* first reschedule or stop timer */ |
|
|
1581 | if (w->repeat) |
|
|
1582 | { |
1793 | { |
|
|
1794 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1795 | |
|
|
1796 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1797 | |
|
|
1798 | /* first reschedule or stop timer */ |
|
|
1799 | if (w->repeat) |
|
|
1800 | { |
|
|
1801 | ev_at (w) += w->repeat; |
|
|
1802 | if (ev_at (w) < mn_now) |
|
|
1803 | ev_at (w) = mn_now; |
|
|
1804 | |
1583 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1805 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1584 | |
1806 | |
1585 | ev_at (w) += w->repeat; |
1807 | ANHE_at_cache (timers [HEAP0]); |
1586 | if (ev_at (w) < mn_now) |
|
|
1587 | ev_at (w) = mn_now; |
|
|
1588 | |
|
|
1589 | downheap (timers, timercnt, HEAP0); |
1808 | downheap (timers, timercnt, HEAP0); |
|
|
1809 | } |
|
|
1810 | else |
|
|
1811 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1812 | |
|
|
1813 | EV_FREQUENT_CHECK; |
|
|
1814 | feed_reverse (EV_A_ (W)w); |
1590 | } |
1815 | } |
1591 | else |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1592 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1593 | |
1817 | |
1594 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1595 | } |
1819 | } |
1596 | } |
1820 | } |
1597 | |
1821 | |
1598 | #if EV_PERIODIC_ENABLE |
1822 | #if EV_PERIODIC_ENABLE |
1599 | void inline_size |
1823 | inline_size void |
1600 | periodics_reify (EV_P) |
1824 | periodics_reify (EV_P) |
1601 | { |
1825 | { |
|
|
1826 | EV_FREQUENT_CHECK; |
|
|
1827 | |
1602 | while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now) |
1828 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1603 | { |
1829 | { |
1604 | ev_periodic *w = (ev_periodic *)periodics [HEAP0]; |
1830 | int feed_count = 0; |
1605 | |
1831 | |
1606 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1832 | do |
1607 | |
|
|
1608 | /* first reschedule or stop timer */ |
|
|
1609 | if (w->reschedule_cb) |
|
|
1610 | { |
1833 | { |
|
|
1834 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1835 | |
|
|
1836 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1837 | |
|
|
1838 | /* first reschedule or stop timer */ |
|
|
1839 | if (w->reschedule_cb) |
|
|
1840 | { |
1611 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1841 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1842 | |
1612 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
1843 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1844 | |
|
|
1845 | ANHE_at_cache (periodics [HEAP0]); |
1613 | downheap (periodics, periodiccnt, 1); |
1846 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1847 | } |
|
|
1848 | else if (w->interval) |
|
|
1849 | { |
|
|
1850 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1851 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1852 | /* this might happen because of floating point inexactness */ |
|
|
1853 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1854 | { |
|
|
1855 | ev_at (w) += w->interval; |
|
|
1856 | |
|
|
1857 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1858 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1859 | /* has effectively asked to get triggered more often than possible */ |
|
|
1860 | if (ev_at (w) < ev_rt_now) |
|
|
1861 | ev_at (w) = ev_rt_now; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1865 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1866 | } |
|
|
1867 | else |
|
|
1868 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1869 | |
|
|
1870 | EV_FREQUENT_CHECK; |
|
|
1871 | feed_reverse (EV_A_ (W)w); |
1614 | } |
1872 | } |
1615 | else if (w->interval) |
1873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1616 | { |
|
|
1617 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1618 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1619 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1620 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1621 | } |
|
|
1622 | else |
|
|
1623 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1624 | |
1874 | |
1625 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1626 | } |
1876 | } |
1627 | } |
1877 | } |
1628 | |
1878 | |
1629 | static void noinline |
1879 | static void noinline |
1630 | periodics_reschedule (EV_P) |
1880 | periodics_reschedule (EV_P) |
1631 | { |
1881 | { |
1632 | int i; |
1882 | int i; |
1633 | |
1883 | |
1634 | /* adjust periodics after time jump */ |
1884 | /* adjust periodics after time jump */ |
1635 | for (i = 1; i <= periodiccnt; ++i) |
1885 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1636 | { |
1886 | { |
1637 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1887 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1638 | |
1888 | |
1639 | if (w->reschedule_cb) |
1889 | if (w->reschedule_cb) |
1640 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1890 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1641 | else if (w->interval) |
1891 | else if (w->interval) |
1642 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1892 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1893 | |
|
|
1894 | ANHE_at_cache (periodics [i]); |
|
|
1895 | } |
|
|
1896 | |
|
|
1897 | reheap (periodics, periodiccnt); |
|
|
1898 | } |
|
|
1899 | #endif |
|
|
1900 | |
|
|
1901 | static void noinline |
|
|
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1903 | { |
|
|
1904 | int i; |
|
|
1905 | |
|
|
1906 | for (i = 0; i < timercnt; ++i) |
1643 | } |
1907 | { |
1644 | |
1908 | ANHE *he = timers + i + HEAP0; |
1645 | /* now rebuild the heap */ |
1909 | ANHE_w (*he)->at += adjust; |
1646 | for (i = periodiccnt >> 1; --i; ) |
1910 | ANHE_at_cache (*he); |
1647 | downheap (periodics, periodiccnt, i + HEAP0); |
1911 | } |
1648 | } |
1912 | } |
1649 | #endif |
|
|
1650 | |
1913 | |
1651 | void inline_speed |
1914 | inline_speed void |
1652 | time_update (EV_P_ ev_tstamp max_block) |
1915 | time_update (EV_P_ ev_tstamp max_block) |
1653 | { |
1916 | { |
1654 | int i; |
1917 | int i; |
1655 | |
1918 | |
1656 | #if EV_USE_MONOTONIC |
1919 | #if EV_USE_MONOTONIC |
… | |
… | |
1689 | ev_rt_now = ev_time (); |
1952 | ev_rt_now = ev_time (); |
1690 | mn_now = get_clock (); |
1953 | mn_now = get_clock (); |
1691 | now_floor = mn_now; |
1954 | now_floor = mn_now; |
1692 | } |
1955 | } |
1693 | |
1956 | |
|
|
1957 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1958 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1694 | # if EV_PERIODIC_ENABLE |
1959 | # if EV_PERIODIC_ENABLE |
1695 | periodics_reschedule (EV_A); |
1960 | periodics_reschedule (EV_A); |
1696 | # endif |
1961 | # endif |
1697 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1698 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1699 | } |
1962 | } |
1700 | else |
1963 | else |
1701 | #endif |
1964 | #endif |
1702 | { |
1965 | { |
1703 | ev_rt_now = ev_time (); |
1966 | ev_rt_now = ev_time (); |
1704 | |
1967 | |
1705 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1968 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1706 | { |
1969 | { |
|
|
1970 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1971 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1707 | #if EV_PERIODIC_ENABLE |
1972 | #if EV_PERIODIC_ENABLE |
1708 | periodics_reschedule (EV_A); |
1973 | periodics_reschedule (EV_A); |
1709 | #endif |
1974 | #endif |
1710 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1711 | for (i = 1; i <= timercnt; ++i) |
|
|
1712 | ev_at (timers [i]) += ev_rt_now - mn_now; |
|
|
1713 | } |
1975 | } |
1714 | |
1976 | |
1715 | mn_now = ev_rt_now; |
1977 | mn_now = ev_rt_now; |
1716 | } |
1978 | } |
1717 | } |
1979 | } |
1718 | |
1980 | |
1719 | void |
|
|
1720 | ev_ref (EV_P) |
|
|
1721 | { |
|
|
1722 | ++activecnt; |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | void |
|
|
1726 | ev_unref (EV_P) |
|
|
1727 | { |
|
|
1728 | --activecnt; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | static int loop_done; |
1981 | static int loop_done; |
1732 | |
1982 | |
1733 | void |
1983 | void |
1734 | ev_loop (EV_P_ int flags) |
1984 | ev_loop (EV_P_ int flags) |
1735 | { |
1985 | { |
… | |
… | |
1737 | |
1987 | |
1738 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1988 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1739 | |
1989 | |
1740 | do |
1990 | do |
1741 | { |
1991 | { |
|
|
1992 | #if EV_VERIFY >= 2 |
|
|
1993 | ev_loop_verify (EV_A); |
|
|
1994 | #endif |
|
|
1995 | |
1742 | #ifndef _WIN32 |
1996 | #ifndef _WIN32 |
1743 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1997 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1744 | if (expect_false (getpid () != curpid)) |
1998 | if (expect_false (getpid () != curpid)) |
1745 | { |
1999 | { |
1746 | curpid = getpid (); |
2000 | curpid = getpid (); |
… | |
… | |
1763 | { |
2017 | { |
1764 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1765 | call_pending (EV_A); |
2019 | call_pending (EV_A); |
1766 | } |
2020 | } |
1767 | |
2021 | |
1768 | if (expect_false (!activecnt)) |
|
|
1769 | break; |
|
|
1770 | |
|
|
1771 | /* we might have forked, so reify kernel state if necessary */ |
2022 | /* we might have forked, so reify kernel state if necessary */ |
1772 | if (expect_false (postfork)) |
2023 | if (expect_false (postfork)) |
1773 | loop_fork (EV_A); |
2024 | loop_fork (EV_A); |
1774 | |
2025 | |
1775 | /* update fd-related kernel structures */ |
2026 | /* update fd-related kernel structures */ |
… | |
… | |
1783 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1784 | { |
2035 | { |
1785 | /* update time to cancel out callback processing overhead */ |
2036 | /* update time to cancel out callback processing overhead */ |
1786 | time_update (EV_A_ 1e100); |
2037 | time_update (EV_A_ 1e100); |
1787 | |
2038 | |
1788 | waittime = MAX_BLOCKTIME; |
|
|
1789 | |
|
|
1790 | if (timercnt) |
2039 | if (timercnt) |
1791 | { |
2040 | { |
1792 | ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge; |
2041 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1793 | if (waittime > to) waittime = to; |
2042 | if (waittime > to) waittime = to; |
1794 | } |
2043 | } |
1795 | |
2044 | |
1796 | #if EV_PERIODIC_ENABLE |
2045 | #if EV_PERIODIC_ENABLE |
1797 | if (periodiccnt) |
2046 | if (periodiccnt) |
1798 | { |
2047 | { |
1799 | ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2048 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1800 | if (waittime > to) waittime = to; |
2049 | if (waittime > to) waittime = to; |
1801 | } |
2050 | } |
1802 | #endif |
2051 | #endif |
1803 | |
2052 | |
1804 | if (expect_false (waittime < timeout_blocktime)) |
2053 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1854 | ev_unloop (EV_P_ int how) |
2103 | ev_unloop (EV_P_ int how) |
1855 | { |
2104 | { |
1856 | loop_done = how; |
2105 | loop_done = how; |
1857 | } |
2106 | } |
1858 | |
2107 | |
|
|
2108 | void |
|
|
2109 | ev_ref (EV_P) |
|
|
2110 | { |
|
|
2111 | ++activecnt; |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | void |
|
|
2115 | ev_unref (EV_P) |
|
|
2116 | { |
|
|
2117 | --activecnt; |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | void |
|
|
2121 | ev_now_update (EV_P) |
|
|
2122 | { |
|
|
2123 | time_update (EV_A_ 1e100); |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | void |
|
|
2127 | ev_suspend (EV_P) |
|
|
2128 | { |
|
|
2129 | ev_now_update (EV_A); |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | void |
|
|
2133 | ev_resume (EV_P) |
|
|
2134 | { |
|
|
2135 | ev_tstamp mn_prev = mn_now; |
|
|
2136 | |
|
|
2137 | ev_now_update (EV_A); |
|
|
2138 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2139 | #if EV_PERIODIC_ENABLE |
|
|
2140 | periodics_reschedule (EV_A); |
|
|
2141 | #endif |
|
|
2142 | } |
|
|
2143 | |
1859 | /*****************************************************************************/ |
2144 | /*****************************************************************************/ |
1860 | |
2145 | |
1861 | void inline_size |
2146 | inline_size void |
1862 | wlist_add (WL *head, WL elem) |
2147 | wlist_add (WL *head, WL elem) |
1863 | { |
2148 | { |
1864 | elem->next = *head; |
2149 | elem->next = *head; |
1865 | *head = elem; |
2150 | *head = elem; |
1866 | } |
2151 | } |
1867 | |
2152 | |
1868 | void inline_size |
2153 | inline_size void |
1869 | wlist_del (WL *head, WL elem) |
2154 | wlist_del (WL *head, WL elem) |
1870 | { |
2155 | { |
1871 | while (*head) |
2156 | while (*head) |
1872 | { |
2157 | { |
1873 | if (*head == elem) |
2158 | if (*head == elem) |
… | |
… | |
1878 | |
2163 | |
1879 | head = &(*head)->next; |
2164 | head = &(*head)->next; |
1880 | } |
2165 | } |
1881 | } |
2166 | } |
1882 | |
2167 | |
1883 | void inline_speed |
2168 | inline_speed void |
1884 | clear_pending (EV_P_ W w) |
2169 | clear_pending (EV_P_ W w) |
1885 | { |
2170 | { |
1886 | if (w->pending) |
2171 | if (w->pending) |
1887 | { |
2172 | { |
1888 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2173 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
… | |
… | |
1905 | } |
2190 | } |
1906 | else |
2191 | else |
1907 | return 0; |
2192 | return 0; |
1908 | } |
2193 | } |
1909 | |
2194 | |
1910 | void inline_size |
2195 | inline_size void |
1911 | pri_adjust (EV_P_ W w) |
2196 | pri_adjust (EV_P_ W w) |
1912 | { |
2197 | { |
1913 | int pri = w->priority; |
2198 | int pri = w->priority; |
1914 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2199 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1915 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2200 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1916 | w->priority = pri; |
2201 | w->priority = pri; |
1917 | } |
2202 | } |
1918 | |
2203 | |
1919 | void inline_speed |
2204 | inline_speed void |
1920 | ev_start (EV_P_ W w, int active) |
2205 | ev_start (EV_P_ W w, int active) |
1921 | { |
2206 | { |
1922 | pri_adjust (EV_A_ w); |
2207 | pri_adjust (EV_A_ w); |
1923 | w->active = active; |
2208 | w->active = active; |
1924 | ev_ref (EV_A); |
2209 | ev_ref (EV_A); |
1925 | } |
2210 | } |
1926 | |
2211 | |
1927 | void inline_size |
2212 | inline_size void |
1928 | ev_stop (EV_P_ W w) |
2213 | ev_stop (EV_P_ W w) |
1929 | { |
2214 | { |
1930 | ev_unref (EV_A); |
2215 | ev_unref (EV_A); |
1931 | w->active = 0; |
2216 | w->active = 0; |
1932 | } |
2217 | } |
… | |
… | |
1939 | int fd = w->fd; |
2224 | int fd = w->fd; |
1940 | |
2225 | |
1941 | if (expect_false (ev_is_active (w))) |
2226 | if (expect_false (ev_is_active (w))) |
1942 | return; |
2227 | return; |
1943 | |
2228 | |
1944 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2229 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2230 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2231 | |
|
|
2232 | EV_FREQUENT_CHECK; |
1945 | |
2233 | |
1946 | ev_start (EV_A_ (W)w, 1); |
2234 | ev_start (EV_A_ (W)w, 1); |
1947 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2235 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1948 | wlist_add (&anfds[fd].head, (WL)w); |
2236 | wlist_add (&anfds[fd].head, (WL)w); |
1949 | |
2237 | |
1950 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2238 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
1951 | w->events &= ~EV_IOFDSET; |
2239 | w->events &= ~EV__IOFDSET; |
|
|
2240 | |
|
|
2241 | EV_FREQUENT_CHECK; |
1952 | } |
2242 | } |
1953 | |
2243 | |
1954 | void noinline |
2244 | void noinline |
1955 | ev_io_stop (EV_P_ ev_io *w) |
2245 | ev_io_stop (EV_P_ ev_io *w) |
1956 | { |
2246 | { |
1957 | clear_pending (EV_A_ (W)w); |
2247 | clear_pending (EV_A_ (W)w); |
1958 | if (expect_false (!ev_is_active (w))) |
2248 | if (expect_false (!ev_is_active (w))) |
1959 | return; |
2249 | return; |
1960 | |
2250 | |
1961 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2251 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2252 | |
|
|
2253 | EV_FREQUENT_CHECK; |
1962 | |
2254 | |
1963 | wlist_del (&anfds[w->fd].head, (WL)w); |
2255 | wlist_del (&anfds[w->fd].head, (WL)w); |
1964 | ev_stop (EV_A_ (W)w); |
2256 | ev_stop (EV_A_ (W)w); |
1965 | |
2257 | |
1966 | fd_change (EV_A_ w->fd, 1); |
2258 | fd_change (EV_A_ w->fd, 1); |
|
|
2259 | |
|
|
2260 | EV_FREQUENT_CHECK; |
1967 | } |
2261 | } |
1968 | |
2262 | |
1969 | void noinline |
2263 | void noinline |
1970 | ev_timer_start (EV_P_ ev_timer *w) |
2264 | ev_timer_start (EV_P_ ev_timer *w) |
1971 | { |
2265 | { |
1972 | if (expect_false (ev_is_active (w))) |
2266 | if (expect_false (ev_is_active (w))) |
1973 | return; |
2267 | return; |
1974 | |
2268 | |
1975 | ev_at (w) += mn_now; |
2269 | ev_at (w) += mn_now; |
1976 | |
2270 | |
1977 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2271 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1978 | |
2272 | |
|
|
2273 | EV_FREQUENT_CHECK; |
|
|
2274 | |
|
|
2275 | ++timercnt; |
1979 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2276 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1980 | array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2); |
2277 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1981 | timers [ev_active (w)] = (WT)w; |
2278 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2279 | ANHE_at_cache (timers [ev_active (w)]); |
1982 | upheap (timers, ev_active (w)); |
2280 | upheap (timers, ev_active (w)); |
1983 | |
2281 | |
|
|
2282 | EV_FREQUENT_CHECK; |
|
|
2283 | |
1984 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
2284 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1985 | } |
2285 | } |
1986 | |
2286 | |
1987 | void noinline |
2287 | void noinline |
1988 | ev_timer_stop (EV_P_ ev_timer *w) |
2288 | ev_timer_stop (EV_P_ ev_timer *w) |
1989 | { |
2289 | { |
1990 | clear_pending (EV_A_ (W)w); |
2290 | clear_pending (EV_A_ (W)w); |
1991 | if (expect_false (!ev_is_active (w))) |
2291 | if (expect_false (!ev_is_active (w))) |
1992 | return; |
2292 | return; |
1993 | |
2293 | |
|
|
2294 | EV_FREQUENT_CHECK; |
|
|
2295 | |
1994 | { |
2296 | { |
1995 | int active = ev_active (w); |
2297 | int active = ev_active (w); |
1996 | |
2298 | |
1997 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
2299 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1998 | |
2300 | |
|
|
2301 | --timercnt; |
|
|
2302 | |
1999 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2303 | if (expect_true (active < timercnt + HEAP0)) |
2000 | { |
2304 | { |
2001 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2305 | timers [active] = timers [timercnt + HEAP0]; |
2002 | adjustheap (timers, timercnt, active); |
2306 | adjustheap (timers, timercnt, active); |
2003 | } |
2307 | } |
2004 | |
|
|
2005 | --timercnt; |
|
|
2006 | } |
2308 | } |
|
|
2309 | |
|
|
2310 | EV_FREQUENT_CHECK; |
2007 | |
2311 | |
2008 | ev_at (w) -= mn_now; |
2312 | ev_at (w) -= mn_now; |
2009 | |
2313 | |
2010 | ev_stop (EV_A_ (W)w); |
2314 | ev_stop (EV_A_ (W)w); |
2011 | } |
2315 | } |
2012 | |
2316 | |
2013 | void noinline |
2317 | void noinline |
2014 | ev_timer_again (EV_P_ ev_timer *w) |
2318 | ev_timer_again (EV_P_ ev_timer *w) |
2015 | { |
2319 | { |
|
|
2320 | EV_FREQUENT_CHECK; |
|
|
2321 | |
2016 | if (ev_is_active (w)) |
2322 | if (ev_is_active (w)) |
2017 | { |
2323 | { |
2018 | if (w->repeat) |
2324 | if (w->repeat) |
2019 | { |
2325 | { |
2020 | ev_at (w) = mn_now + w->repeat; |
2326 | ev_at (w) = mn_now + w->repeat; |
|
|
2327 | ANHE_at_cache (timers [ev_active (w)]); |
2021 | adjustheap (timers, timercnt, ev_active (w)); |
2328 | adjustheap (timers, timercnt, ev_active (w)); |
2022 | } |
2329 | } |
2023 | else |
2330 | else |
2024 | ev_timer_stop (EV_A_ w); |
2331 | ev_timer_stop (EV_A_ w); |
2025 | } |
2332 | } |
2026 | else if (w->repeat) |
2333 | else if (w->repeat) |
2027 | { |
2334 | { |
2028 | ev_at (w) = w->repeat; |
2335 | ev_at (w) = w->repeat; |
2029 | ev_timer_start (EV_A_ w); |
2336 | ev_timer_start (EV_A_ w); |
2030 | } |
2337 | } |
|
|
2338 | |
|
|
2339 | EV_FREQUENT_CHECK; |
2031 | } |
2340 | } |
2032 | |
2341 | |
2033 | #if EV_PERIODIC_ENABLE |
2342 | #if EV_PERIODIC_ENABLE |
2034 | void noinline |
2343 | void noinline |
2035 | ev_periodic_start (EV_P_ ev_periodic *w) |
2344 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2039 | |
2348 | |
2040 | if (w->reschedule_cb) |
2349 | if (w->reschedule_cb) |
2041 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2350 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2042 | else if (w->interval) |
2351 | else if (w->interval) |
2043 | { |
2352 | { |
2044 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2353 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2045 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2354 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2046 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2355 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2047 | } |
2356 | } |
2048 | else |
2357 | else |
2049 | ev_at (w) = w->offset; |
2358 | ev_at (w) = w->offset; |
2050 | |
2359 | |
|
|
2360 | EV_FREQUENT_CHECK; |
|
|
2361 | |
|
|
2362 | ++periodiccnt; |
2051 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2363 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2052 | array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2); |
2364 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2053 | periodics [ev_active (w)] = (WT)w; |
2365 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
2366 | ANHE_at_cache (periodics [ev_active (w)]); |
2054 | upheap (periodics, ev_active (w)); |
2367 | upheap (periodics, ev_active (w)); |
2055 | |
2368 | |
|
|
2369 | EV_FREQUENT_CHECK; |
|
|
2370 | |
2056 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
2371 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2057 | } |
2372 | } |
2058 | |
2373 | |
2059 | void noinline |
2374 | void noinline |
2060 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2375 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2061 | { |
2376 | { |
2062 | clear_pending (EV_A_ (W)w); |
2377 | clear_pending (EV_A_ (W)w); |
2063 | if (expect_false (!ev_is_active (w))) |
2378 | if (expect_false (!ev_is_active (w))) |
2064 | return; |
2379 | return; |
2065 | |
2380 | |
|
|
2381 | EV_FREQUENT_CHECK; |
|
|
2382 | |
2066 | { |
2383 | { |
2067 | int active = ev_active (w); |
2384 | int active = ev_active (w); |
2068 | |
2385 | |
2069 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
2386 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2070 | |
2387 | |
|
|
2388 | --periodiccnt; |
|
|
2389 | |
2071 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2390 | if (expect_true (active < periodiccnt + HEAP0)) |
2072 | { |
2391 | { |
2073 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2392 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2074 | adjustheap (periodics, periodiccnt, active); |
2393 | adjustheap (periodics, periodiccnt, active); |
2075 | } |
2394 | } |
2076 | |
|
|
2077 | --periodiccnt; |
|
|
2078 | } |
2395 | } |
|
|
2396 | |
|
|
2397 | EV_FREQUENT_CHECK; |
2079 | |
2398 | |
2080 | ev_stop (EV_A_ (W)w); |
2399 | ev_stop (EV_A_ (W)w); |
2081 | } |
2400 | } |
2082 | |
2401 | |
2083 | void noinline |
2402 | void noinline |
… | |
… | |
2095 | |
2414 | |
2096 | void noinline |
2415 | void noinline |
2097 | ev_signal_start (EV_P_ ev_signal *w) |
2416 | ev_signal_start (EV_P_ ev_signal *w) |
2098 | { |
2417 | { |
2099 | #if EV_MULTIPLICITY |
2418 | #if EV_MULTIPLICITY |
2100 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2419 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2101 | #endif |
2420 | #endif |
2102 | if (expect_false (ev_is_active (w))) |
2421 | if (expect_false (ev_is_active (w))) |
2103 | return; |
2422 | return; |
2104 | |
2423 | |
2105 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2424 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2106 | |
2425 | |
2107 | evpipe_init (EV_A); |
2426 | evpipe_init (EV_A); |
|
|
2427 | |
|
|
2428 | EV_FREQUENT_CHECK; |
2108 | |
2429 | |
2109 | { |
2430 | { |
2110 | #ifndef _WIN32 |
2431 | #ifndef _WIN32 |
2111 | sigset_t full, prev; |
2432 | sigset_t full, prev; |
2112 | sigfillset (&full); |
2433 | sigfillset (&full); |
2113 | sigprocmask (SIG_SETMASK, &full, &prev); |
2434 | sigprocmask (SIG_SETMASK, &full, &prev); |
2114 | #endif |
2435 | #endif |
2115 | |
2436 | |
2116 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2437 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2117 | |
2438 | |
2118 | #ifndef _WIN32 |
2439 | #ifndef _WIN32 |
2119 | sigprocmask (SIG_SETMASK, &prev, 0); |
2440 | sigprocmask (SIG_SETMASK, &prev, 0); |
2120 | #endif |
2441 | #endif |
2121 | } |
2442 | } |
… | |
… | |
2133 | sigfillset (&sa.sa_mask); |
2454 | sigfillset (&sa.sa_mask); |
2134 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2455 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2135 | sigaction (w->signum, &sa, 0); |
2456 | sigaction (w->signum, &sa, 0); |
2136 | #endif |
2457 | #endif |
2137 | } |
2458 | } |
|
|
2459 | |
|
|
2460 | EV_FREQUENT_CHECK; |
2138 | } |
2461 | } |
2139 | |
2462 | |
2140 | void noinline |
2463 | void noinline |
2141 | ev_signal_stop (EV_P_ ev_signal *w) |
2464 | ev_signal_stop (EV_P_ ev_signal *w) |
2142 | { |
2465 | { |
2143 | clear_pending (EV_A_ (W)w); |
2466 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
2467 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
2468 | return; |
2146 | |
2469 | |
|
|
2470 | EV_FREQUENT_CHECK; |
|
|
2471 | |
2147 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2472 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2148 | ev_stop (EV_A_ (W)w); |
2473 | ev_stop (EV_A_ (W)w); |
2149 | |
2474 | |
2150 | if (!signals [w->signum - 1].head) |
2475 | if (!signals [w->signum - 1].head) |
2151 | signal (w->signum, SIG_DFL); |
2476 | signal (w->signum, SIG_DFL); |
|
|
2477 | |
|
|
2478 | EV_FREQUENT_CHECK; |
2152 | } |
2479 | } |
2153 | |
2480 | |
2154 | void |
2481 | void |
2155 | ev_child_start (EV_P_ ev_child *w) |
2482 | ev_child_start (EV_P_ ev_child *w) |
2156 | { |
2483 | { |
2157 | #if EV_MULTIPLICITY |
2484 | #if EV_MULTIPLICITY |
2158 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2485 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2159 | #endif |
2486 | #endif |
2160 | if (expect_false (ev_is_active (w))) |
2487 | if (expect_false (ev_is_active (w))) |
2161 | return; |
2488 | return; |
2162 | |
2489 | |
|
|
2490 | EV_FREQUENT_CHECK; |
|
|
2491 | |
2163 | ev_start (EV_A_ (W)w, 1); |
2492 | ev_start (EV_A_ (W)w, 1); |
2164 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2493 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2494 | |
|
|
2495 | EV_FREQUENT_CHECK; |
2165 | } |
2496 | } |
2166 | |
2497 | |
2167 | void |
2498 | void |
2168 | ev_child_stop (EV_P_ ev_child *w) |
2499 | ev_child_stop (EV_P_ ev_child *w) |
2169 | { |
2500 | { |
2170 | clear_pending (EV_A_ (W)w); |
2501 | clear_pending (EV_A_ (W)w); |
2171 | if (expect_false (!ev_is_active (w))) |
2502 | if (expect_false (!ev_is_active (w))) |
2172 | return; |
2503 | return; |
2173 | |
2504 | |
|
|
2505 | EV_FREQUENT_CHECK; |
|
|
2506 | |
2174 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2507 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2175 | ev_stop (EV_A_ (W)w); |
2508 | ev_stop (EV_A_ (W)w); |
|
|
2509 | |
|
|
2510 | EV_FREQUENT_CHECK; |
2176 | } |
2511 | } |
2177 | |
2512 | |
2178 | #if EV_STAT_ENABLE |
2513 | #if EV_STAT_ENABLE |
2179 | |
2514 | |
2180 | # ifdef _WIN32 |
2515 | # ifdef _WIN32 |
2181 | # undef lstat |
2516 | # undef lstat |
2182 | # define lstat(a,b) _stati64 (a,b) |
2517 | # define lstat(a,b) _stati64 (a,b) |
2183 | # endif |
2518 | # endif |
2184 | |
2519 | |
2185 | #define DEF_STAT_INTERVAL 5.0074891 |
2520 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2521 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2186 | #define MIN_STAT_INTERVAL 0.1074891 |
2522 | #define MIN_STAT_INTERVAL 0.1074891 |
2187 | |
2523 | |
2188 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2524 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2189 | |
2525 | |
2190 | #if EV_USE_INOTIFY |
2526 | #if EV_USE_INOTIFY |
2191 | # define EV_INOTIFY_BUFSIZE 8192 |
2527 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2195 | { |
2531 | { |
2196 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2532 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2197 | |
2533 | |
2198 | if (w->wd < 0) |
2534 | if (w->wd < 0) |
2199 | { |
2535 | { |
|
|
2536 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2200 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2537 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2201 | |
2538 | |
2202 | /* monitor some parent directory for speedup hints */ |
2539 | /* monitor some parent directory for speedup hints */ |
2203 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2540 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2204 | /* but an efficiency issue only */ |
2541 | /* but an efficiency issue only */ |
2205 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2542 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2206 | { |
2543 | { |
2207 | char path [4096]; |
2544 | char path [4096]; |
2208 | strcpy (path, w->path); |
2545 | strcpy (path, w->path); |
… | |
… | |
2212 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2549 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2213 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2550 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2214 | |
2551 | |
2215 | char *pend = strrchr (path, '/'); |
2552 | char *pend = strrchr (path, '/'); |
2216 | |
2553 | |
2217 | if (!pend) |
2554 | if (!pend || pend == path) |
2218 | break; /* whoops, no '/', complain to your admin */ |
2555 | break; |
2219 | |
2556 | |
2220 | *pend = 0; |
2557 | *pend = 0; |
2221 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2558 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2222 | } |
2559 | } |
2223 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2560 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2224 | } |
2561 | } |
2225 | } |
2562 | } |
2226 | else |
|
|
2227 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2228 | |
2563 | |
2229 | if (w->wd >= 0) |
2564 | if (w->wd >= 0) |
|
|
2565 | { |
2230 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2566 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2567 | |
|
|
2568 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2569 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2570 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2571 | struct statfs sfs; |
|
|
2572 | |
|
|
2573 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2574 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2575 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2576 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2577 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2578 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2579 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2580 | return; |
|
|
2581 | |
|
|
2582 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2583 | ev_timer_again (EV_A_ &w->timer); |
|
|
2584 | } |
2231 | } |
2585 | } |
2232 | |
2586 | |
2233 | static void noinline |
2587 | static void noinline |
2234 | infy_del (EV_P_ ev_stat *w) |
2588 | infy_del (EV_P_ ev_stat *w) |
2235 | { |
2589 | { |
… | |
… | |
2249 | |
2603 | |
2250 | static void noinline |
2604 | static void noinline |
2251 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2605 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2252 | { |
2606 | { |
2253 | if (slot < 0) |
2607 | if (slot < 0) |
2254 | /* overflow, need to check for all hahs slots */ |
2608 | /* overflow, need to check for all hash slots */ |
2255 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2609 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2256 | infy_wd (EV_A_ slot, wd, ev); |
2610 | infy_wd (EV_A_ slot, wd, ev); |
2257 | else |
2611 | else |
2258 | { |
2612 | { |
2259 | WL w_; |
2613 | WL w_; |
… | |
… | |
2265 | |
2619 | |
2266 | if (w->wd == wd || wd == -1) |
2620 | if (w->wd == wd || wd == -1) |
2267 | { |
2621 | { |
2268 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2622 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2269 | { |
2623 | { |
|
|
2624 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2270 | w->wd = -1; |
2625 | w->wd = -1; |
2271 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2626 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2272 | } |
2627 | } |
2273 | |
2628 | |
2274 | stat_timer_cb (EV_A_ &w->timer, 0); |
2629 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2287 | |
2642 | |
2288 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2643 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2289 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2644 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2290 | } |
2645 | } |
2291 | |
2646 | |
2292 | void inline_size |
2647 | inline_size void |
|
|
2648 | check_2625 (EV_P) |
|
|
2649 | { |
|
|
2650 | /* kernels < 2.6.25 are borked |
|
|
2651 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2652 | */ |
|
|
2653 | struct utsname buf; |
|
|
2654 | int major, minor, micro; |
|
|
2655 | |
|
|
2656 | if (uname (&buf)) |
|
|
2657 | return; |
|
|
2658 | |
|
|
2659 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2660 | return; |
|
|
2661 | |
|
|
2662 | if (major < 2 |
|
|
2663 | || (major == 2 && minor < 6) |
|
|
2664 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2665 | return; |
|
|
2666 | |
|
|
2667 | fs_2625 = 1; |
|
|
2668 | } |
|
|
2669 | |
|
|
2670 | inline_size void |
2293 | infy_init (EV_P) |
2671 | infy_init (EV_P) |
2294 | { |
2672 | { |
2295 | if (fs_fd != -2) |
2673 | if (fs_fd != -2) |
2296 | return; |
2674 | return; |
|
|
2675 | |
|
|
2676 | fs_fd = -1; |
|
|
2677 | |
|
|
2678 | check_2625 (EV_A); |
2297 | |
2679 | |
2298 | fs_fd = inotify_init (); |
2680 | fs_fd = inotify_init (); |
2299 | |
2681 | |
2300 | if (fs_fd >= 0) |
2682 | if (fs_fd >= 0) |
2301 | { |
2683 | { |
… | |
… | |
2303 | ev_set_priority (&fs_w, EV_MAXPRI); |
2685 | ev_set_priority (&fs_w, EV_MAXPRI); |
2304 | ev_io_start (EV_A_ &fs_w); |
2686 | ev_io_start (EV_A_ &fs_w); |
2305 | } |
2687 | } |
2306 | } |
2688 | } |
2307 | |
2689 | |
2308 | void inline_size |
2690 | inline_size void |
2309 | infy_fork (EV_P) |
2691 | infy_fork (EV_P) |
2310 | { |
2692 | { |
2311 | int slot; |
2693 | int slot; |
2312 | |
2694 | |
2313 | if (fs_fd < 0) |
2695 | if (fs_fd < 0) |
… | |
… | |
2329 | w->wd = -1; |
2711 | w->wd = -1; |
2330 | |
2712 | |
2331 | if (fs_fd >= 0) |
2713 | if (fs_fd >= 0) |
2332 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2714 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2333 | else |
2715 | else |
2334 | ev_timer_start (EV_A_ &w->timer); |
2716 | ev_timer_again (EV_A_ &w->timer); |
2335 | } |
2717 | } |
2336 | |
|
|
2337 | } |
2718 | } |
2338 | } |
2719 | } |
2339 | |
2720 | |
|
|
2721 | #endif |
|
|
2722 | |
|
|
2723 | #ifdef _WIN32 |
|
|
2724 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2725 | #else |
|
|
2726 | # define EV_LSTAT(p,b) lstat (p, b) |
2340 | #endif |
2727 | #endif |
2341 | |
2728 | |
2342 | void |
2729 | void |
2343 | ev_stat_stat (EV_P_ ev_stat *w) |
2730 | ev_stat_stat (EV_P_ ev_stat *w) |
2344 | { |
2731 | { |
… | |
… | |
2371 | || w->prev.st_atime != w->attr.st_atime |
2758 | || w->prev.st_atime != w->attr.st_atime |
2372 | || w->prev.st_mtime != w->attr.st_mtime |
2759 | || w->prev.st_mtime != w->attr.st_mtime |
2373 | || w->prev.st_ctime != w->attr.st_ctime |
2760 | || w->prev.st_ctime != w->attr.st_ctime |
2374 | ) { |
2761 | ) { |
2375 | #if EV_USE_INOTIFY |
2762 | #if EV_USE_INOTIFY |
|
|
2763 | if (fs_fd >= 0) |
|
|
2764 | { |
2376 | infy_del (EV_A_ w); |
2765 | infy_del (EV_A_ w); |
2377 | infy_add (EV_A_ w); |
2766 | infy_add (EV_A_ w); |
2378 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2767 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2768 | } |
2379 | #endif |
2769 | #endif |
2380 | |
2770 | |
2381 | ev_feed_event (EV_A_ w, EV_STAT); |
2771 | ev_feed_event (EV_A_ w, EV_STAT); |
2382 | } |
2772 | } |
2383 | } |
2773 | } |
… | |
… | |
2386 | ev_stat_start (EV_P_ ev_stat *w) |
2776 | ev_stat_start (EV_P_ ev_stat *w) |
2387 | { |
2777 | { |
2388 | if (expect_false (ev_is_active (w))) |
2778 | if (expect_false (ev_is_active (w))) |
2389 | return; |
2779 | return; |
2390 | |
2780 | |
2391 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2392 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2393 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2394 | |
|
|
2395 | ev_stat_stat (EV_A_ w); |
2781 | ev_stat_stat (EV_A_ w); |
2396 | |
2782 | |
|
|
2783 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2397 | if (w->interval < MIN_STAT_INTERVAL) |
2784 | w->interval = MIN_STAT_INTERVAL; |
2398 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2399 | |
2785 | |
2400 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2786 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2401 | ev_set_priority (&w->timer, ev_priority (w)); |
2787 | ev_set_priority (&w->timer, ev_priority (w)); |
2402 | |
2788 | |
2403 | #if EV_USE_INOTIFY |
2789 | #if EV_USE_INOTIFY |
2404 | infy_init (EV_A); |
2790 | infy_init (EV_A); |
2405 | |
2791 | |
2406 | if (fs_fd >= 0) |
2792 | if (fs_fd >= 0) |
2407 | infy_add (EV_A_ w); |
2793 | infy_add (EV_A_ w); |
2408 | else |
2794 | else |
2409 | #endif |
2795 | #endif |
2410 | ev_timer_start (EV_A_ &w->timer); |
2796 | ev_timer_again (EV_A_ &w->timer); |
2411 | |
2797 | |
2412 | ev_start (EV_A_ (W)w, 1); |
2798 | ev_start (EV_A_ (W)w, 1); |
|
|
2799 | |
|
|
2800 | EV_FREQUENT_CHECK; |
2413 | } |
2801 | } |
2414 | |
2802 | |
2415 | void |
2803 | void |
2416 | ev_stat_stop (EV_P_ ev_stat *w) |
2804 | ev_stat_stop (EV_P_ ev_stat *w) |
2417 | { |
2805 | { |
2418 | clear_pending (EV_A_ (W)w); |
2806 | clear_pending (EV_A_ (W)w); |
2419 | if (expect_false (!ev_is_active (w))) |
2807 | if (expect_false (!ev_is_active (w))) |
2420 | return; |
2808 | return; |
2421 | |
2809 | |
|
|
2810 | EV_FREQUENT_CHECK; |
|
|
2811 | |
2422 | #if EV_USE_INOTIFY |
2812 | #if EV_USE_INOTIFY |
2423 | infy_del (EV_A_ w); |
2813 | infy_del (EV_A_ w); |
2424 | #endif |
2814 | #endif |
2425 | ev_timer_stop (EV_A_ &w->timer); |
2815 | ev_timer_stop (EV_A_ &w->timer); |
2426 | |
2816 | |
2427 | ev_stop (EV_A_ (W)w); |
2817 | ev_stop (EV_A_ (W)w); |
|
|
2818 | |
|
|
2819 | EV_FREQUENT_CHECK; |
2428 | } |
2820 | } |
2429 | #endif |
2821 | #endif |
2430 | |
2822 | |
2431 | #if EV_IDLE_ENABLE |
2823 | #if EV_IDLE_ENABLE |
2432 | void |
2824 | void |
… | |
… | |
2434 | { |
2826 | { |
2435 | if (expect_false (ev_is_active (w))) |
2827 | if (expect_false (ev_is_active (w))) |
2436 | return; |
2828 | return; |
2437 | |
2829 | |
2438 | pri_adjust (EV_A_ (W)w); |
2830 | pri_adjust (EV_A_ (W)w); |
|
|
2831 | |
|
|
2832 | EV_FREQUENT_CHECK; |
2439 | |
2833 | |
2440 | { |
2834 | { |
2441 | int active = ++idlecnt [ABSPRI (w)]; |
2835 | int active = ++idlecnt [ABSPRI (w)]; |
2442 | |
2836 | |
2443 | ++idleall; |
2837 | ++idleall; |
2444 | ev_start (EV_A_ (W)w, active); |
2838 | ev_start (EV_A_ (W)w, active); |
2445 | |
2839 | |
2446 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2840 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2447 | idles [ABSPRI (w)][active - 1] = w; |
2841 | idles [ABSPRI (w)][active - 1] = w; |
2448 | } |
2842 | } |
|
|
2843 | |
|
|
2844 | EV_FREQUENT_CHECK; |
2449 | } |
2845 | } |
2450 | |
2846 | |
2451 | void |
2847 | void |
2452 | ev_idle_stop (EV_P_ ev_idle *w) |
2848 | ev_idle_stop (EV_P_ ev_idle *w) |
2453 | { |
2849 | { |
2454 | clear_pending (EV_A_ (W)w); |
2850 | clear_pending (EV_A_ (W)w); |
2455 | if (expect_false (!ev_is_active (w))) |
2851 | if (expect_false (!ev_is_active (w))) |
2456 | return; |
2852 | return; |
2457 | |
2853 | |
|
|
2854 | EV_FREQUENT_CHECK; |
|
|
2855 | |
2458 | { |
2856 | { |
2459 | int active = ev_active (w); |
2857 | int active = ev_active (w); |
2460 | |
2858 | |
2461 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2859 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2462 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2860 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2463 | |
2861 | |
2464 | ev_stop (EV_A_ (W)w); |
2862 | ev_stop (EV_A_ (W)w); |
2465 | --idleall; |
2863 | --idleall; |
2466 | } |
2864 | } |
|
|
2865 | |
|
|
2866 | EV_FREQUENT_CHECK; |
2467 | } |
2867 | } |
2468 | #endif |
2868 | #endif |
2469 | |
2869 | |
2470 | void |
2870 | void |
2471 | ev_prepare_start (EV_P_ ev_prepare *w) |
2871 | ev_prepare_start (EV_P_ ev_prepare *w) |
2472 | { |
2872 | { |
2473 | if (expect_false (ev_is_active (w))) |
2873 | if (expect_false (ev_is_active (w))) |
2474 | return; |
2874 | return; |
|
|
2875 | |
|
|
2876 | EV_FREQUENT_CHECK; |
2475 | |
2877 | |
2476 | ev_start (EV_A_ (W)w, ++preparecnt); |
2878 | ev_start (EV_A_ (W)w, ++preparecnt); |
2477 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2879 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2478 | prepares [preparecnt - 1] = w; |
2880 | prepares [preparecnt - 1] = w; |
|
|
2881 | |
|
|
2882 | EV_FREQUENT_CHECK; |
2479 | } |
2883 | } |
2480 | |
2884 | |
2481 | void |
2885 | void |
2482 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2886 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2483 | { |
2887 | { |
2484 | clear_pending (EV_A_ (W)w); |
2888 | clear_pending (EV_A_ (W)w); |
2485 | if (expect_false (!ev_is_active (w))) |
2889 | if (expect_false (!ev_is_active (w))) |
2486 | return; |
2890 | return; |
2487 | |
2891 | |
|
|
2892 | EV_FREQUENT_CHECK; |
|
|
2893 | |
2488 | { |
2894 | { |
2489 | int active = ev_active (w); |
2895 | int active = ev_active (w); |
2490 | |
2896 | |
2491 | prepares [active - 1] = prepares [--preparecnt]; |
2897 | prepares [active - 1] = prepares [--preparecnt]; |
2492 | ev_active (prepares [active - 1]) = active; |
2898 | ev_active (prepares [active - 1]) = active; |
2493 | } |
2899 | } |
2494 | |
2900 | |
2495 | ev_stop (EV_A_ (W)w); |
2901 | ev_stop (EV_A_ (W)w); |
|
|
2902 | |
|
|
2903 | EV_FREQUENT_CHECK; |
2496 | } |
2904 | } |
2497 | |
2905 | |
2498 | void |
2906 | void |
2499 | ev_check_start (EV_P_ ev_check *w) |
2907 | ev_check_start (EV_P_ ev_check *w) |
2500 | { |
2908 | { |
2501 | if (expect_false (ev_is_active (w))) |
2909 | if (expect_false (ev_is_active (w))) |
2502 | return; |
2910 | return; |
|
|
2911 | |
|
|
2912 | EV_FREQUENT_CHECK; |
2503 | |
2913 | |
2504 | ev_start (EV_A_ (W)w, ++checkcnt); |
2914 | ev_start (EV_A_ (W)w, ++checkcnt); |
2505 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2915 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2506 | checks [checkcnt - 1] = w; |
2916 | checks [checkcnt - 1] = w; |
|
|
2917 | |
|
|
2918 | EV_FREQUENT_CHECK; |
2507 | } |
2919 | } |
2508 | |
2920 | |
2509 | void |
2921 | void |
2510 | ev_check_stop (EV_P_ ev_check *w) |
2922 | ev_check_stop (EV_P_ ev_check *w) |
2511 | { |
2923 | { |
2512 | clear_pending (EV_A_ (W)w); |
2924 | clear_pending (EV_A_ (W)w); |
2513 | if (expect_false (!ev_is_active (w))) |
2925 | if (expect_false (!ev_is_active (w))) |
2514 | return; |
2926 | return; |
2515 | |
2927 | |
|
|
2928 | EV_FREQUENT_CHECK; |
|
|
2929 | |
2516 | { |
2930 | { |
2517 | int active = ev_active (w); |
2931 | int active = ev_active (w); |
2518 | |
2932 | |
2519 | checks [active - 1] = checks [--checkcnt]; |
2933 | checks [active - 1] = checks [--checkcnt]; |
2520 | ev_active (checks [active - 1]) = active; |
2934 | ev_active (checks [active - 1]) = active; |
2521 | } |
2935 | } |
2522 | |
2936 | |
2523 | ev_stop (EV_A_ (W)w); |
2937 | ev_stop (EV_A_ (W)w); |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
2524 | } |
2940 | } |
2525 | |
2941 | |
2526 | #if EV_EMBED_ENABLE |
2942 | #if EV_EMBED_ENABLE |
2527 | void noinline |
2943 | void noinline |
2528 | ev_embed_sweep (EV_P_ ev_embed *w) |
2944 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2555 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2971 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2556 | } |
2972 | } |
2557 | } |
2973 | } |
2558 | } |
2974 | } |
2559 | |
2975 | |
|
|
2976 | static void |
|
|
2977 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2978 | { |
|
|
2979 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2980 | |
|
|
2981 | ev_embed_stop (EV_A_ w); |
|
|
2982 | |
|
|
2983 | { |
|
|
2984 | struct ev_loop *loop = w->other; |
|
|
2985 | |
|
|
2986 | ev_loop_fork (EV_A); |
|
|
2987 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2988 | } |
|
|
2989 | |
|
|
2990 | ev_embed_start (EV_A_ w); |
|
|
2991 | } |
|
|
2992 | |
2560 | #if 0 |
2993 | #if 0 |
2561 | static void |
2994 | static void |
2562 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2995 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2563 | { |
2996 | { |
2564 | ev_idle_stop (EV_A_ idle); |
2997 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2571 | if (expect_false (ev_is_active (w))) |
3004 | if (expect_false (ev_is_active (w))) |
2572 | return; |
3005 | return; |
2573 | |
3006 | |
2574 | { |
3007 | { |
2575 | struct ev_loop *loop = w->other; |
3008 | struct ev_loop *loop = w->other; |
2576 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3009 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2577 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3010 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2578 | } |
3011 | } |
|
|
3012 | |
|
|
3013 | EV_FREQUENT_CHECK; |
2579 | |
3014 | |
2580 | ev_set_priority (&w->io, ev_priority (w)); |
3015 | ev_set_priority (&w->io, ev_priority (w)); |
2581 | ev_io_start (EV_A_ &w->io); |
3016 | ev_io_start (EV_A_ &w->io); |
2582 | |
3017 | |
2583 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3018 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2584 | ev_set_priority (&w->prepare, EV_MINPRI); |
3019 | ev_set_priority (&w->prepare, EV_MINPRI); |
2585 | ev_prepare_start (EV_A_ &w->prepare); |
3020 | ev_prepare_start (EV_A_ &w->prepare); |
2586 | |
3021 | |
|
|
3022 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3023 | ev_fork_start (EV_A_ &w->fork); |
|
|
3024 | |
2587 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3025 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2588 | |
3026 | |
2589 | ev_start (EV_A_ (W)w, 1); |
3027 | ev_start (EV_A_ (W)w, 1); |
|
|
3028 | |
|
|
3029 | EV_FREQUENT_CHECK; |
2590 | } |
3030 | } |
2591 | |
3031 | |
2592 | void |
3032 | void |
2593 | ev_embed_stop (EV_P_ ev_embed *w) |
3033 | ev_embed_stop (EV_P_ ev_embed *w) |
2594 | { |
3034 | { |
2595 | clear_pending (EV_A_ (W)w); |
3035 | clear_pending (EV_A_ (W)w); |
2596 | if (expect_false (!ev_is_active (w))) |
3036 | if (expect_false (!ev_is_active (w))) |
2597 | return; |
3037 | return; |
2598 | |
3038 | |
|
|
3039 | EV_FREQUENT_CHECK; |
|
|
3040 | |
2599 | ev_io_stop (EV_A_ &w->io); |
3041 | ev_io_stop (EV_A_ &w->io); |
2600 | ev_prepare_stop (EV_A_ &w->prepare); |
3042 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3043 | ev_fork_stop (EV_A_ &w->fork); |
2601 | |
3044 | |
2602 | ev_stop (EV_A_ (W)w); |
3045 | EV_FREQUENT_CHECK; |
2603 | } |
3046 | } |
2604 | #endif |
3047 | #endif |
2605 | |
3048 | |
2606 | #if EV_FORK_ENABLE |
3049 | #if EV_FORK_ENABLE |
2607 | void |
3050 | void |
2608 | ev_fork_start (EV_P_ ev_fork *w) |
3051 | ev_fork_start (EV_P_ ev_fork *w) |
2609 | { |
3052 | { |
2610 | if (expect_false (ev_is_active (w))) |
3053 | if (expect_false (ev_is_active (w))) |
2611 | return; |
3054 | return; |
|
|
3055 | |
|
|
3056 | EV_FREQUENT_CHECK; |
2612 | |
3057 | |
2613 | ev_start (EV_A_ (W)w, ++forkcnt); |
3058 | ev_start (EV_A_ (W)w, ++forkcnt); |
2614 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3059 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2615 | forks [forkcnt - 1] = w; |
3060 | forks [forkcnt - 1] = w; |
|
|
3061 | |
|
|
3062 | EV_FREQUENT_CHECK; |
2616 | } |
3063 | } |
2617 | |
3064 | |
2618 | void |
3065 | void |
2619 | ev_fork_stop (EV_P_ ev_fork *w) |
3066 | ev_fork_stop (EV_P_ ev_fork *w) |
2620 | { |
3067 | { |
2621 | clear_pending (EV_A_ (W)w); |
3068 | clear_pending (EV_A_ (W)w); |
2622 | if (expect_false (!ev_is_active (w))) |
3069 | if (expect_false (!ev_is_active (w))) |
2623 | return; |
3070 | return; |
2624 | |
3071 | |
|
|
3072 | EV_FREQUENT_CHECK; |
|
|
3073 | |
2625 | { |
3074 | { |
2626 | int active = ev_active (w); |
3075 | int active = ev_active (w); |
2627 | |
3076 | |
2628 | forks [active - 1] = forks [--forkcnt]; |
3077 | forks [active - 1] = forks [--forkcnt]; |
2629 | ev_active (forks [active - 1]) = active; |
3078 | ev_active (forks [active - 1]) = active; |
2630 | } |
3079 | } |
2631 | |
3080 | |
2632 | ev_stop (EV_A_ (W)w); |
3081 | ev_stop (EV_A_ (W)w); |
|
|
3082 | |
|
|
3083 | EV_FREQUENT_CHECK; |
2633 | } |
3084 | } |
2634 | #endif |
3085 | #endif |
2635 | |
3086 | |
2636 | #if EV_ASYNC_ENABLE |
3087 | #if EV_ASYNC_ENABLE |
2637 | void |
3088 | void |
… | |
… | |
2639 | { |
3090 | { |
2640 | if (expect_false (ev_is_active (w))) |
3091 | if (expect_false (ev_is_active (w))) |
2641 | return; |
3092 | return; |
2642 | |
3093 | |
2643 | evpipe_init (EV_A); |
3094 | evpipe_init (EV_A); |
|
|
3095 | |
|
|
3096 | EV_FREQUENT_CHECK; |
2644 | |
3097 | |
2645 | ev_start (EV_A_ (W)w, ++asynccnt); |
3098 | ev_start (EV_A_ (W)w, ++asynccnt); |
2646 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3099 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2647 | asyncs [asynccnt - 1] = w; |
3100 | asyncs [asynccnt - 1] = w; |
|
|
3101 | |
|
|
3102 | EV_FREQUENT_CHECK; |
2648 | } |
3103 | } |
2649 | |
3104 | |
2650 | void |
3105 | void |
2651 | ev_async_stop (EV_P_ ev_async *w) |
3106 | ev_async_stop (EV_P_ ev_async *w) |
2652 | { |
3107 | { |
2653 | clear_pending (EV_A_ (W)w); |
3108 | clear_pending (EV_A_ (W)w); |
2654 | if (expect_false (!ev_is_active (w))) |
3109 | if (expect_false (!ev_is_active (w))) |
2655 | return; |
3110 | return; |
2656 | |
3111 | |
|
|
3112 | EV_FREQUENT_CHECK; |
|
|
3113 | |
2657 | { |
3114 | { |
2658 | int active = ev_active (w); |
3115 | int active = ev_active (w); |
2659 | |
3116 | |
2660 | asyncs [active - 1] = asyncs [--asynccnt]; |
3117 | asyncs [active - 1] = asyncs [--asynccnt]; |
2661 | ev_active (asyncs [active - 1]) = active; |
3118 | ev_active (asyncs [active - 1]) = active; |
2662 | } |
3119 | } |
2663 | |
3120 | |
2664 | ev_stop (EV_A_ (W)w); |
3121 | ev_stop (EV_A_ (W)w); |
|
|
3122 | |
|
|
3123 | EV_FREQUENT_CHECK; |
2665 | } |
3124 | } |
2666 | |
3125 | |
2667 | void |
3126 | void |
2668 | ev_async_send (EV_P_ ev_async *w) |
3127 | ev_async_send (EV_P_ ev_async *w) |
2669 | { |
3128 | { |
… | |
… | |
2686 | once_cb (EV_P_ struct ev_once *once, int revents) |
3145 | once_cb (EV_P_ struct ev_once *once, int revents) |
2687 | { |
3146 | { |
2688 | void (*cb)(int revents, void *arg) = once->cb; |
3147 | void (*cb)(int revents, void *arg) = once->cb; |
2689 | void *arg = once->arg; |
3148 | void *arg = once->arg; |
2690 | |
3149 | |
2691 | ev_io_stop (EV_A_ &once->io); |
3150 | ev_io_stop (EV_A_ &once->io); |
2692 | ev_timer_stop (EV_A_ &once->to); |
3151 | ev_timer_stop (EV_A_ &once->to); |
2693 | ev_free (once); |
3152 | ev_free (once); |
2694 | |
3153 | |
2695 | cb (revents, arg); |
3154 | cb (revents, arg); |
2696 | } |
3155 | } |
2697 | |
3156 | |
2698 | static void |
3157 | static void |
2699 | once_cb_io (EV_P_ ev_io *w, int revents) |
3158 | once_cb_io (EV_P_ ev_io *w, int revents) |
2700 | { |
3159 | { |
2701 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3160 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3161 | |
|
|
3162 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2702 | } |
3163 | } |
2703 | |
3164 | |
2704 | static void |
3165 | static void |
2705 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3166 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2706 | { |
3167 | { |
2707 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3168 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3169 | |
|
|
3170 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2708 | } |
3171 | } |
2709 | |
3172 | |
2710 | void |
3173 | void |
2711 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3174 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2712 | { |
3175 | { |
… | |
… | |
2734 | ev_timer_set (&once->to, timeout, 0.); |
3197 | ev_timer_set (&once->to, timeout, 0.); |
2735 | ev_timer_start (EV_A_ &once->to); |
3198 | ev_timer_start (EV_A_ &once->to); |
2736 | } |
3199 | } |
2737 | } |
3200 | } |
2738 | |
3201 | |
|
|
3202 | /*****************************************************************************/ |
|
|
3203 | |
|
|
3204 | #if 0 |
|
|
3205 | void |
|
|
3206 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3207 | { |
|
|
3208 | int i, j; |
|
|
3209 | ev_watcher_list *wl, *wn; |
|
|
3210 | |
|
|
3211 | if (types & (EV_IO | EV_EMBED)) |
|
|
3212 | for (i = 0; i < anfdmax; ++i) |
|
|
3213 | for (wl = anfds [i].head; wl; ) |
|
|
3214 | { |
|
|
3215 | wn = wl->next; |
|
|
3216 | |
|
|
3217 | #if EV_EMBED_ENABLE |
|
|
3218 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3219 | { |
|
|
3220 | if (types & EV_EMBED) |
|
|
3221 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3222 | } |
|
|
3223 | else |
|
|
3224 | #endif |
|
|
3225 | #if EV_USE_INOTIFY |
|
|
3226 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3227 | ; |
|
|
3228 | else |
|
|
3229 | #endif |
|
|
3230 | if ((ev_io *)wl != &pipeev) |
|
|
3231 | if (types & EV_IO) |
|
|
3232 | cb (EV_A_ EV_IO, wl); |
|
|
3233 | |
|
|
3234 | wl = wn; |
|
|
3235 | } |
|
|
3236 | |
|
|
3237 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3238 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3239 | #if EV_STAT_ENABLE |
|
|
3240 | /*TODO: timer is not always active*/ |
|
|
3241 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3242 | { |
|
|
3243 | if (types & EV_STAT) |
|
|
3244 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3245 | } |
|
|
3246 | else |
|
|
3247 | #endif |
|
|
3248 | if (types & EV_TIMER) |
|
|
3249 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3250 | |
|
|
3251 | #if EV_PERIODIC_ENABLE |
|
|
3252 | if (types & EV_PERIODIC) |
|
|
3253 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3254 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3255 | #endif |
|
|
3256 | |
|
|
3257 | #if EV_IDLE_ENABLE |
|
|
3258 | if (types & EV_IDLE) |
|
|
3259 | for (j = NUMPRI; i--; ) |
|
|
3260 | for (i = idlecnt [j]; i--; ) |
|
|
3261 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3262 | #endif |
|
|
3263 | |
|
|
3264 | #if EV_FORK_ENABLE |
|
|
3265 | if (types & EV_FORK) |
|
|
3266 | for (i = forkcnt; i--; ) |
|
|
3267 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3268 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3269 | #endif |
|
|
3270 | |
|
|
3271 | #if EV_ASYNC_ENABLE |
|
|
3272 | if (types & EV_ASYNC) |
|
|
3273 | for (i = asynccnt; i--; ) |
|
|
3274 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3275 | #endif |
|
|
3276 | |
|
|
3277 | if (types & EV_PREPARE) |
|
|
3278 | for (i = preparecnt; i--; ) |
|
|
3279 | #if EV_EMBED_ENABLE |
|
|
3280 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3281 | #endif |
|
|
3282 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3283 | |
|
|
3284 | if (types & EV_CHECK) |
|
|
3285 | for (i = checkcnt; i--; ) |
|
|
3286 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3287 | |
|
|
3288 | if (types & EV_SIGNAL) |
|
|
3289 | for (i = 0; i < signalmax; ++i) |
|
|
3290 | for (wl = signals [i].head; wl; ) |
|
|
3291 | { |
|
|
3292 | wn = wl->next; |
|
|
3293 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3294 | wl = wn; |
|
|
3295 | } |
|
|
3296 | |
|
|
3297 | if (types & EV_CHILD) |
|
|
3298 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3299 | for (wl = childs [i]; wl; ) |
|
|
3300 | { |
|
|
3301 | wn = wl->next; |
|
|
3302 | cb (EV_A_ EV_CHILD, wl); |
|
|
3303 | wl = wn; |
|
|
3304 | } |
|
|
3305 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3306 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3307 | } |
|
|
3308 | #endif |
|
|
3309 | |
2739 | #if EV_MULTIPLICITY |
3310 | #if EV_MULTIPLICITY |
2740 | #include "ev_wrap.h" |
3311 | #include "ev_wrap.h" |
2741 | #endif |
3312 | #endif |
2742 | |
3313 | |
2743 | #ifdef __cplusplus |
3314 | #ifdef __cplusplus |