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 | |
773 | #define DHEAP 4 |
887 | #define DHEAP 4 |
774 | #define HEAP0 (DHEAP - 1) /* 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)) |
775 | |
891 | |
776 | /* towards the root */ |
892 | /* away from the root */ |
777 | void inline_speed |
893 | inline_speed void |
778 | upheap (WT *heap, int k) |
894 | downheap (ANHE *heap, int N, int k) |
779 | { |
895 | { |
780 | WT w = heap [k]; |
896 | ANHE he = heap [k]; |
781 | ev_tstamp w_at = w->at; |
897 | ANHE *E = heap + N + HEAP0; |
782 | |
898 | |
783 | for (;;) |
899 | for (;;) |
784 | { |
900 | { |
785 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
786 | |
|
|
787 | if (p == k || heap [p]->at <= w_at) |
|
|
788 | break; |
|
|
789 | |
|
|
790 | heap [k] = heap [p]; |
|
|
791 | ev_active (heap [k]) = k; |
|
|
792 | k = p; |
|
|
793 | } |
|
|
794 | |
|
|
795 | heap [k] = w; |
|
|
796 | ev_active (heap [k]) = k; |
|
|
797 | } |
|
|
798 | |
|
|
799 | /* away from the root */ |
|
|
800 | void inline_speed |
|
|
801 | downheap (WT *heap, int N, int k) |
|
|
802 | { |
|
|
803 | WT w = heap [k]; |
|
|
804 | WT *E = heap + N + HEAP0; |
|
|
805 | |
|
|
806 | for (;;) |
|
|
807 | { |
|
|
808 | ev_tstamp minat; |
901 | ev_tstamp minat; |
809 | WT *minpos; |
902 | ANHE *minpos; |
810 | WT *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
903 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
811 | |
904 | |
812 | // find minimum child |
905 | /* find minimum child */ |
813 | if (expect_true (pos + DHEAP - 1 < E)) |
906 | if (expect_true (pos + DHEAP - 1 < E)) |
814 | { |
907 | { |
815 | /* fast path */ (minpos = pos + 0), (minat = (*minpos)->at); |
908 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
816 | 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)); |
817 | 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)); |
818 | 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)); |
819 | } |
912 | } |
820 | else if (pos < E) |
913 | else if (pos < E) |
821 | { |
914 | { |
822 | /* slow path */ (minpos = pos + 0), (minat = (*minpos)->at); |
915 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
823 | if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
916 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
824 | if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
917 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
825 | if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
918 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
826 | } |
919 | } |
827 | else |
920 | else |
828 | break; |
921 | break; |
829 | |
922 | |
830 | if (w->at <= minat) |
923 | if (ANHE_at (he) <= minat) |
831 | break; |
924 | break; |
832 | |
925 | |
833 | ev_active (*minpos) = k; |
|
|
834 | heap [k] = *minpos; |
926 | heap [k] = *minpos; |
|
|
927 | ev_active (ANHE_w (*minpos)) = k; |
835 | |
928 | |
836 | k = minpos - heap; |
929 | k = minpos - heap; |
837 | } |
930 | } |
838 | |
931 | |
839 | heap [k] = w; |
932 | heap [k] = he; |
840 | ev_active (heap [k]) = k; |
933 | ev_active (ANHE_w (he)) = k; |
841 | } |
934 | } |
842 | |
935 | |
843 | #else // 4HEAP |
936 | #else /* 4HEAP */ |
844 | |
937 | |
845 | #define HEAP0 1 |
938 | #define HEAP0 1 |
|
|
939 | #define HPARENT(k) ((k) >> 1) |
|
|
940 | #define UPHEAP_DONE(p,k) (!(p)) |
846 | |
941 | |
847 | /* towards the root */ |
942 | /* away from the root */ |
848 | void inline_speed |
943 | inline_speed void |
849 | upheap (WT *heap, int k) |
944 | downheap (ANHE *heap, int N, int k) |
850 | { |
945 | { |
851 | WT w = heap [k]; |
946 | ANHE he = heap [k]; |
852 | |
947 | |
853 | for (;;) |
948 | for (;;) |
854 | { |
949 | { |
855 | int p = k >> 1; |
950 | int c = k << 1; |
856 | |
951 | |
857 | /* maybe we could use a dummy element at heap [0]? */ |
952 | if (c > N + HEAP0 - 1) |
858 | if (!p || heap [p]->at <= w->at) |
|
|
859 | break; |
953 | break; |
860 | |
954 | |
861 | heap [k] = heap [p]; |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
862 | ev_active (heap [k]) = k; |
956 | ? 1 : 0; |
863 | k = p; |
|
|
864 | } |
|
|
865 | |
957 | |
866 | heap [k] = w; |
958 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
867 | ev_active (heap [k]) = k; |
|
|
868 | } |
|
|
869 | |
|
|
870 | /* away from the root */ |
|
|
871 | void inline_speed |
|
|
872 | downheap (WT *heap, int N, int k) |
|
|
873 | { |
|
|
874 | WT w = heap [k]; |
|
|
875 | |
|
|
876 | for (;;) |
|
|
877 | { |
|
|
878 | int c = k << 1; |
|
|
879 | |
|
|
880 | if (c > N) |
|
|
881 | break; |
959 | break; |
882 | |
960 | |
883 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
884 | ? 1 : 0; |
|
|
885 | |
|
|
886 | if (w->at <= heap [c]->at) |
|
|
887 | break; |
|
|
888 | |
|
|
889 | heap [k] = heap [c]; |
961 | heap [k] = heap [c]; |
890 | ((W)heap [k])->active = k; |
962 | ev_active (ANHE_w (heap [k])) = k; |
891 | |
963 | |
892 | k = c; |
964 | k = c; |
893 | } |
965 | } |
894 | |
966 | |
895 | 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]; |
896 | ev_active (heap [k]) = k; |
986 | ev_active (ANHE_w (heap [k])) = k; |
897 | } |
987 | k = p; |
898 | #endif |
988 | } |
899 | |
989 | |
900 | void inline_size |
990 | heap [k] = he; |
|
|
991 | ev_active (ANHE_w (he)) = k; |
|
|
992 | } |
|
|
993 | |
|
|
994 | inline_size void |
901 | adjustheap (WT *heap, int N, int k) |
995 | adjustheap (ANHE *heap, int N, int k) |
902 | { |
996 | { |
|
|
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
903 | upheap (heap, k); |
998 | upheap (heap, k); |
|
|
999 | else |
904 | 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); |
905 | } |
1013 | } |
906 | |
1014 | |
907 | /*****************************************************************************/ |
1015 | /*****************************************************************************/ |
908 | |
1016 | |
909 | typedef struct |
1017 | typedef struct |
… | |
… | |
915 | static ANSIG *signals; |
1023 | static ANSIG *signals; |
916 | static int signalmax; |
1024 | static int signalmax; |
917 | |
1025 | |
918 | static EV_ATOMIC_T gotsig; |
1026 | static EV_ATOMIC_T gotsig; |
919 | |
1027 | |
920 | void inline_size |
|
|
921 | signals_init (ANSIG *base, int count) |
|
|
922 | { |
|
|
923 | while (count--) |
|
|
924 | { |
|
|
925 | base->head = 0; |
|
|
926 | base->gotsig = 0; |
|
|
927 | |
|
|
928 | ++base; |
|
|
929 | } |
|
|
930 | } |
|
|
931 | |
|
|
932 | /*****************************************************************************/ |
1028 | /*****************************************************************************/ |
933 | |
1029 | |
934 | void inline_speed |
1030 | inline_speed void |
935 | fd_intern (int fd) |
1031 | fd_intern (int fd) |
936 | { |
1032 | { |
937 | #ifdef _WIN32 |
1033 | #ifdef _WIN32 |
938 | int arg = 1; |
1034 | unsigned long arg = 1; |
939 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
940 | #else |
1036 | #else |
941 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
942 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
943 | #endif |
1039 | #endif |
… | |
… | |
957 | } |
1053 | } |
958 | else |
1054 | else |
959 | #endif |
1055 | #endif |
960 | { |
1056 | { |
961 | while (pipe (evpipe)) |
1057 | while (pipe (evpipe)) |
962 | syserr ("(libev) error creating signal/async pipe"); |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
963 | |
1059 | |
964 | fd_intern (evpipe [0]); |
1060 | fd_intern (evpipe [0]); |
965 | fd_intern (evpipe [1]); |
1061 | fd_intern (evpipe [1]); |
966 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
967 | } |
1063 | } |
… | |
… | |
969 | ev_io_start (EV_A_ &pipeev); |
1065 | ev_io_start (EV_A_ &pipeev); |
970 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
971 | } |
1067 | } |
972 | } |
1068 | } |
973 | |
1069 | |
974 | void inline_size |
1070 | inline_size void |
975 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
976 | { |
1072 | { |
977 | if (!*flag) |
1073 | if (!*flag) |
978 | { |
1074 | { |
979 | int old_errno = errno; /* save errno because write might clobber it */ |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1057 | ev_feed_signal_event (EV_P_ int signum) |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1058 | { |
1154 | { |
1059 | WL w; |
1155 | WL w; |
1060 | |
1156 | |
1061 | #if EV_MULTIPLICITY |
1157 | #if EV_MULTIPLICITY |
1062 | 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)); |
1063 | #endif |
1159 | #endif |
1064 | |
1160 | |
1065 | --signum; |
1161 | --signum; |
1066 | |
1162 | |
1067 | if (signum < 0 || signum >= signalmax) |
1163 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1083 | |
1179 | |
1084 | #ifndef WIFCONTINUED |
1180 | #ifndef WIFCONTINUED |
1085 | # define WIFCONTINUED(status) 0 |
1181 | # define WIFCONTINUED(status) 0 |
1086 | #endif |
1182 | #endif |
1087 | |
1183 | |
1088 | void inline_speed |
1184 | inline_speed void |
1089 | child_reap (EV_P_ int chain, int pid, int status) |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1090 | { |
1186 | { |
1091 | ev_child *w; |
1187 | ev_child *w; |
1092 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1093 | |
1189 | |
… | |
… | |
1196 | /* kqueue is borked on everything but netbsd apparently */ |
1292 | /* kqueue is borked on everything but netbsd apparently */ |
1197 | /* 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 */ |
1198 | flags &= ~EVBACKEND_KQUEUE; |
1294 | flags &= ~EVBACKEND_KQUEUE; |
1199 | #endif |
1295 | #endif |
1200 | #ifdef __APPLE__ |
1296 | #ifdef __APPLE__ |
1201 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1297 | /* only select works correctly on that "unix-certified" platform */ |
1202 | 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 */ |
1203 | #endif |
1300 | #endif |
1204 | |
1301 | |
1205 | return flags; |
1302 | return flags; |
1206 | } |
1303 | } |
1207 | |
1304 | |
… | |
… | |
1244 | static void noinline |
1341 | static void noinline |
1245 | loop_init (EV_P_ unsigned int flags) |
1342 | loop_init (EV_P_ unsigned int flags) |
1246 | { |
1343 | { |
1247 | if (!backend) |
1344 | if (!backend) |
1248 | { |
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 | |
1249 | #if EV_USE_MONOTONIC |
1356 | #if EV_USE_MONOTONIC |
|
|
1357 | if (!have_monotonic) |
1250 | { |
1358 | { |
1251 | struct timespec ts; |
1359 | struct timespec ts; |
|
|
1360 | |
1252 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1253 | have_monotonic = 1; |
1362 | have_monotonic = 1; |
1254 | } |
1363 | } |
1255 | #endif |
1364 | #endif |
1256 | |
1365 | |
1257 | ev_rt_now = ev_time (); |
1366 | ev_rt_now = ev_time (); |
1258 | mn_now = get_clock (); |
1367 | mn_now = get_clock (); |
1259 | now_floor = mn_now; |
1368 | now_floor = mn_now; |
… | |
… | |
1358 | } |
1467 | } |
1359 | |
1468 | |
1360 | ev_free (anfds); anfdmax = 0; |
1469 | ev_free (anfds); anfdmax = 0; |
1361 | |
1470 | |
1362 | /* 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); |
1363 | array_free (fdchange, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1364 | array_free (timer, EMPTY); |
1474 | array_free (timer, EMPTY); |
1365 | #if EV_PERIODIC_ENABLE |
1475 | #if EV_PERIODIC_ENABLE |
1366 | array_free (periodic, EMPTY); |
1476 | array_free (periodic, EMPTY); |
1367 | #endif |
1477 | #endif |
… | |
… | |
1376 | |
1486 | |
1377 | backend = 0; |
1487 | backend = 0; |
1378 | } |
1488 | } |
1379 | |
1489 | |
1380 | #if EV_USE_INOTIFY |
1490 | #if EV_USE_INOTIFY |
1381 | void inline_size infy_fork (EV_P); |
1491 | inline_size void infy_fork (EV_P); |
1382 | #endif |
1492 | #endif |
1383 | |
1493 | |
1384 | void inline_size |
1494 | inline_size void |
1385 | loop_fork (EV_P) |
1495 | loop_fork (EV_P) |
1386 | { |
1496 | { |
1387 | #if EV_USE_PORT |
1497 | #if EV_USE_PORT |
1388 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1498 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1389 | #endif |
1499 | #endif |
… | |
… | |
1427 | |
1537 | |
1428 | postfork = 0; |
1538 | postfork = 0; |
1429 | } |
1539 | } |
1430 | |
1540 | |
1431 | #if EV_MULTIPLICITY |
1541 | #if EV_MULTIPLICITY |
|
|
1542 | |
1432 | struct ev_loop * |
1543 | struct ev_loop * |
1433 | ev_loop_new (unsigned int flags) |
1544 | ev_loop_new (unsigned int flags) |
1434 | { |
1545 | { |
1435 | 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)); |
1436 | |
1547 | |
… | |
… | |
1454 | void |
1565 | void |
1455 | ev_loop_fork (EV_P) |
1566 | ev_loop_fork (EV_P) |
1456 | { |
1567 | { |
1457 | postfork = 1; /* must be in line with ev_default_fork */ |
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
1458 | } |
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) |
1459 | #endif |
1666 | # endif |
|
|
1667 | #endif |
|
|
1668 | } |
|
|
1669 | |
|
|
1670 | #endif /* multiplicity */ |
1460 | |
1671 | |
1461 | #if EV_MULTIPLICITY |
1672 | #if EV_MULTIPLICITY |
1462 | struct ev_loop * |
1673 | struct ev_loop * |
1463 | ev_default_loop_init (unsigned int flags) |
1674 | ev_default_loop_init (unsigned int flags) |
1464 | #else |
1675 | #else |
… | |
… | |
1497 | { |
1708 | { |
1498 | #if EV_MULTIPLICITY |
1709 | #if EV_MULTIPLICITY |
1499 | struct ev_loop *loop = ev_default_loop_ptr; |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
1500 | #endif |
1711 | #endif |
1501 | |
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
1502 | #ifndef _WIN32 |
1715 | #ifndef _WIN32 |
1503 | ev_ref (EV_A); /* child watcher */ |
1716 | ev_ref (EV_A); /* child watcher */ |
1504 | ev_signal_stop (EV_A_ &childev); |
1717 | ev_signal_stop (EV_A_ &childev); |
1505 | #endif |
1718 | #endif |
1506 | |
1719 | |
… | |
… | |
1512 | { |
1725 | { |
1513 | #if EV_MULTIPLICITY |
1726 | #if EV_MULTIPLICITY |
1514 | struct ev_loop *loop = ev_default_loop_ptr; |
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
1515 | #endif |
1728 | #endif |
1516 | |
1729 | |
1517 | if (backend) |
|
|
1518 | postfork = 1; /* must be in line with ev_loop_fork */ |
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
1519 | } |
1731 | } |
1520 | |
1732 | |
1521 | /*****************************************************************************/ |
1733 | /*****************************************************************************/ |
1522 | |
1734 | |
1523 | void |
1735 | void |
1524 | ev_invoke (EV_P_ void *w, int revents) |
1736 | ev_invoke (EV_P_ void *w, int revents) |
1525 | { |
1737 | { |
1526 | EV_CB_INVOKE ((W)w, revents); |
1738 | EV_CB_INVOKE ((W)w, revents); |
1527 | } |
1739 | } |
1528 | |
1740 | |
1529 | void inline_speed |
1741 | inline_speed void |
1530 | call_pending (EV_P) |
1742 | call_pending (EV_P) |
1531 | { |
1743 | { |
1532 | int pri; |
1744 | int pri; |
1533 | |
1745 | |
1534 | for (pri = NUMPRI; pri--; ) |
1746 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1536 | { |
1748 | { |
1537 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1538 | |
1750 | |
1539 | if (expect_true (p->w)) |
1751 | if (expect_true (p->w)) |
1540 | { |
1752 | { |
1541 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1542 | |
1754 | |
1543 | p->w->pending = 0; |
1755 | p->w->pending = 0; |
1544 | EV_CB_INVOKE (p->w, p->events); |
1756 | EV_CB_INVOKE (p->w, p->events); |
|
|
1757 | EV_FREQUENT_CHECK; |
1545 | } |
1758 | } |
1546 | } |
1759 | } |
1547 | } |
1760 | } |
1548 | |
1761 | |
1549 | #if EV_IDLE_ENABLE |
1762 | #if EV_IDLE_ENABLE |
1550 | void inline_size |
1763 | inline_size void |
1551 | idle_reify (EV_P) |
1764 | idle_reify (EV_P) |
1552 | { |
1765 | { |
1553 | if (expect_false (idleall)) |
1766 | if (expect_false (idleall)) |
1554 | { |
1767 | { |
1555 | int pri; |
1768 | int pri; |
… | |
… | |
1567 | } |
1780 | } |
1568 | } |
1781 | } |
1569 | } |
1782 | } |
1570 | #endif |
1783 | #endif |
1571 | |
1784 | |
1572 | void inline_size |
1785 | inline_size void |
1573 | timers_reify (EV_P) |
1786 | timers_reify (EV_P) |
1574 | { |
1787 | { |
|
|
1788 | EV_FREQUENT_CHECK; |
|
|
1789 | |
1575 | while (timercnt && ev_at (timers [HEAP0]) <= mn_now) |
1790 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1576 | { |
1791 | { |
1577 | ev_timer *w = (ev_timer *)timers [HEAP0]; |
1792 | do |
1578 | |
|
|
1579 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1580 | |
|
|
1581 | /* first reschedule or stop timer */ |
|
|
1582 | if (w->repeat) |
|
|
1583 | { |
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 | |
1584 | 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.)); |
1585 | |
1806 | |
1586 | ev_at (w) += w->repeat; |
1807 | ANHE_at_cache (timers [HEAP0]); |
1587 | if (ev_at (w) < mn_now) |
|
|
1588 | ev_at (w) = mn_now; |
|
|
1589 | |
|
|
1590 | 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); |
1591 | } |
1815 | } |
1592 | else |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1593 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1594 | |
1817 | |
1595 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1596 | } |
1819 | } |
1597 | } |
1820 | } |
1598 | |
1821 | |
1599 | #if EV_PERIODIC_ENABLE |
1822 | #if EV_PERIODIC_ENABLE |
1600 | void inline_size |
1823 | inline_size void |
1601 | periodics_reify (EV_P) |
1824 | periodics_reify (EV_P) |
1602 | { |
1825 | { |
|
|
1826 | EV_FREQUENT_CHECK; |
|
|
1827 | |
1603 | while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now) |
1828 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1604 | { |
1829 | { |
1605 | ev_periodic *w = (ev_periodic *)periodics [HEAP0]; |
1830 | int feed_count = 0; |
1606 | |
1831 | |
1607 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1832 | do |
1608 | |
|
|
1609 | /* first reschedule or stop timer */ |
|
|
1610 | if (w->reschedule_cb) |
|
|
1611 | { |
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 | { |
1612 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1841 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1842 | |
1613 | 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]); |
1614 | 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); |
1615 | } |
1872 | } |
1616 | else if (w->interval) |
1873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1617 | { |
|
|
1618 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1619 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1620 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1621 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1622 | } |
|
|
1623 | else |
|
|
1624 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1625 | |
1874 | |
1626 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1627 | } |
1876 | } |
1628 | } |
1877 | } |
1629 | |
1878 | |
1630 | static void noinline |
1879 | static void noinline |
1631 | periodics_reschedule (EV_P) |
1880 | periodics_reschedule (EV_P) |
1632 | { |
1881 | { |
1633 | int i; |
1882 | int i; |
1634 | |
1883 | |
1635 | /* adjust periodics after time jump */ |
1884 | /* adjust periodics after time jump */ |
1636 | for (i = 1; i <= periodiccnt; ++i) |
1885 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1637 | { |
1886 | { |
1638 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1887 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1639 | |
1888 | |
1640 | if (w->reschedule_cb) |
1889 | if (w->reschedule_cb) |
1641 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1890 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1642 | else if (w->interval) |
1891 | else if (w->interval) |
1643 | 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; |
1644 | } |
|
|
1645 | |
1893 | |
1646 | /* now rebuild the heap */ |
1894 | ANHE_at_cache (periodics [i]); |
1647 | for (i = periodiccnt >> 1; --i; ) |
1895 | } |
|
|
1896 | |
1648 | downheap (periodics, periodiccnt, i + HEAP0); |
1897 | reheap (periodics, periodiccnt); |
1649 | } |
1898 | } |
1650 | #endif |
1899 | #endif |
1651 | |
1900 | |
1652 | void inline_speed |
1901 | inline_speed void |
1653 | time_update (EV_P_ ev_tstamp max_block) |
1902 | time_update (EV_P_ ev_tstamp max_block) |
1654 | { |
1903 | { |
1655 | int i; |
1904 | int i; |
1656 | |
1905 | |
1657 | #if EV_USE_MONOTONIC |
1906 | #if EV_USE_MONOTONIC |
… | |
… | |
1707 | { |
1956 | { |
1708 | #if EV_PERIODIC_ENABLE |
1957 | #if EV_PERIODIC_ENABLE |
1709 | periodics_reschedule (EV_A); |
1958 | periodics_reschedule (EV_A); |
1710 | #endif |
1959 | #endif |
1711 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1960 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1712 | for (i = 1; i <= timercnt; ++i) |
1961 | for (i = 0; i < timercnt; ++i) |
1713 | ev_at (timers [i]) += ev_rt_now - mn_now; |
1962 | { |
|
|
1963 | ANHE *he = timers + i + HEAP0; |
|
|
1964 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1965 | ANHE_at_cache (*he); |
|
|
1966 | } |
1714 | } |
1967 | } |
1715 | |
1968 | |
1716 | mn_now = ev_rt_now; |
1969 | mn_now = ev_rt_now; |
1717 | } |
1970 | } |
1718 | } |
1971 | } |
… | |
… | |
1727 | ev_unref (EV_P) |
1980 | ev_unref (EV_P) |
1728 | { |
1981 | { |
1729 | --activecnt; |
1982 | --activecnt; |
1730 | } |
1983 | } |
1731 | |
1984 | |
|
|
1985 | void |
|
|
1986 | ev_now_update (EV_P) |
|
|
1987 | { |
|
|
1988 | time_update (EV_A_ 1e100); |
|
|
1989 | } |
|
|
1990 | |
1732 | static int loop_done; |
1991 | static int loop_done; |
1733 | |
1992 | |
1734 | void |
1993 | void |
1735 | ev_loop (EV_P_ int flags) |
1994 | ev_loop (EV_P_ int flags) |
1736 | { |
1995 | { |
… | |
… | |
1738 | |
1997 | |
1739 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1998 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1740 | |
1999 | |
1741 | do |
2000 | do |
1742 | { |
2001 | { |
|
|
2002 | #if EV_VERIFY >= 2 |
|
|
2003 | ev_loop_verify (EV_A); |
|
|
2004 | #endif |
|
|
2005 | |
1743 | #ifndef _WIN32 |
2006 | #ifndef _WIN32 |
1744 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2007 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1745 | if (expect_false (getpid () != curpid)) |
2008 | if (expect_false (getpid () != curpid)) |
1746 | { |
2009 | { |
1747 | curpid = getpid (); |
2010 | curpid = getpid (); |
… | |
… | |
1764 | { |
2027 | { |
1765 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2028 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1766 | call_pending (EV_A); |
2029 | call_pending (EV_A); |
1767 | } |
2030 | } |
1768 | |
2031 | |
1769 | if (expect_false (!activecnt)) |
|
|
1770 | break; |
|
|
1771 | |
|
|
1772 | /* we might have forked, so reify kernel state if necessary */ |
2032 | /* we might have forked, so reify kernel state if necessary */ |
1773 | if (expect_false (postfork)) |
2033 | if (expect_false (postfork)) |
1774 | loop_fork (EV_A); |
2034 | loop_fork (EV_A); |
1775 | |
2035 | |
1776 | /* update fd-related kernel structures */ |
2036 | /* update fd-related kernel structures */ |
… | |
… | |
1784 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2044 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1785 | { |
2045 | { |
1786 | /* update time to cancel out callback processing overhead */ |
2046 | /* update time to cancel out callback processing overhead */ |
1787 | time_update (EV_A_ 1e100); |
2047 | time_update (EV_A_ 1e100); |
1788 | |
2048 | |
1789 | waittime = MAX_BLOCKTIME; |
|
|
1790 | |
|
|
1791 | if (timercnt) |
2049 | if (timercnt) |
1792 | { |
2050 | { |
1793 | ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge; |
2051 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1794 | if (waittime > to) waittime = to; |
2052 | if (waittime > to) waittime = to; |
1795 | } |
2053 | } |
1796 | |
2054 | |
1797 | #if EV_PERIODIC_ENABLE |
2055 | #if EV_PERIODIC_ENABLE |
1798 | if (periodiccnt) |
2056 | if (periodiccnt) |
1799 | { |
2057 | { |
1800 | ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2058 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1801 | if (waittime > to) waittime = to; |
2059 | if (waittime > to) waittime = to; |
1802 | } |
2060 | } |
1803 | #endif |
2061 | #endif |
1804 | |
2062 | |
1805 | if (expect_false (waittime < timeout_blocktime)) |
2063 | if (expect_false (waittime < timeout_blocktime)) |
… | |
… | |
1857 | loop_done = how; |
2115 | loop_done = how; |
1858 | } |
2116 | } |
1859 | |
2117 | |
1860 | /*****************************************************************************/ |
2118 | /*****************************************************************************/ |
1861 | |
2119 | |
1862 | void inline_size |
2120 | inline_size void |
1863 | wlist_add (WL *head, WL elem) |
2121 | wlist_add (WL *head, WL elem) |
1864 | { |
2122 | { |
1865 | elem->next = *head; |
2123 | elem->next = *head; |
1866 | *head = elem; |
2124 | *head = elem; |
1867 | } |
2125 | } |
1868 | |
2126 | |
1869 | void inline_size |
2127 | inline_size void |
1870 | wlist_del (WL *head, WL elem) |
2128 | wlist_del (WL *head, WL elem) |
1871 | { |
2129 | { |
1872 | while (*head) |
2130 | while (*head) |
1873 | { |
2131 | { |
1874 | if (*head == elem) |
2132 | if (*head == elem) |
… | |
… | |
1879 | |
2137 | |
1880 | head = &(*head)->next; |
2138 | head = &(*head)->next; |
1881 | } |
2139 | } |
1882 | } |
2140 | } |
1883 | |
2141 | |
1884 | void inline_speed |
2142 | inline_speed void |
1885 | clear_pending (EV_P_ W w) |
2143 | clear_pending (EV_P_ W w) |
1886 | { |
2144 | { |
1887 | if (w->pending) |
2145 | if (w->pending) |
1888 | { |
2146 | { |
1889 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2147 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
… | |
… | |
1906 | } |
2164 | } |
1907 | else |
2165 | else |
1908 | return 0; |
2166 | return 0; |
1909 | } |
2167 | } |
1910 | |
2168 | |
1911 | void inline_size |
2169 | inline_size void |
1912 | pri_adjust (EV_P_ W w) |
2170 | pri_adjust (EV_P_ W w) |
1913 | { |
2171 | { |
1914 | int pri = w->priority; |
2172 | int pri = w->priority; |
1915 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2173 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1916 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2174 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1917 | w->priority = pri; |
2175 | w->priority = pri; |
1918 | } |
2176 | } |
1919 | |
2177 | |
1920 | void inline_speed |
2178 | inline_speed void |
1921 | ev_start (EV_P_ W w, int active) |
2179 | ev_start (EV_P_ W w, int active) |
1922 | { |
2180 | { |
1923 | pri_adjust (EV_A_ w); |
2181 | pri_adjust (EV_A_ w); |
1924 | w->active = active; |
2182 | w->active = active; |
1925 | ev_ref (EV_A); |
2183 | ev_ref (EV_A); |
1926 | } |
2184 | } |
1927 | |
2185 | |
1928 | void inline_size |
2186 | inline_size void |
1929 | ev_stop (EV_P_ W w) |
2187 | ev_stop (EV_P_ W w) |
1930 | { |
2188 | { |
1931 | ev_unref (EV_A); |
2189 | ev_unref (EV_A); |
1932 | w->active = 0; |
2190 | w->active = 0; |
1933 | } |
2191 | } |
… | |
… | |
1940 | int fd = w->fd; |
2198 | int fd = w->fd; |
1941 | |
2199 | |
1942 | if (expect_false (ev_is_active (w))) |
2200 | if (expect_false (ev_is_active (w))) |
1943 | return; |
2201 | return; |
1944 | |
2202 | |
1945 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2203 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2204 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2205 | |
|
|
2206 | EV_FREQUENT_CHECK; |
1946 | |
2207 | |
1947 | ev_start (EV_A_ (W)w, 1); |
2208 | ev_start (EV_A_ (W)w, 1); |
1948 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2209 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1949 | wlist_add (&anfds[fd].head, (WL)w); |
2210 | wlist_add (&anfds[fd].head, (WL)w); |
1950 | |
2211 | |
1951 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2212 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
1952 | w->events &= ~EV_IOFDSET; |
2213 | w->events &= ~EV__IOFDSET; |
|
|
2214 | |
|
|
2215 | EV_FREQUENT_CHECK; |
1953 | } |
2216 | } |
1954 | |
2217 | |
1955 | void noinline |
2218 | void noinline |
1956 | ev_io_stop (EV_P_ ev_io *w) |
2219 | ev_io_stop (EV_P_ ev_io *w) |
1957 | { |
2220 | { |
1958 | clear_pending (EV_A_ (W)w); |
2221 | clear_pending (EV_A_ (W)w); |
1959 | if (expect_false (!ev_is_active (w))) |
2222 | if (expect_false (!ev_is_active (w))) |
1960 | return; |
2223 | return; |
1961 | |
2224 | |
1962 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2225 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2226 | |
|
|
2227 | EV_FREQUENT_CHECK; |
1963 | |
2228 | |
1964 | wlist_del (&anfds[w->fd].head, (WL)w); |
2229 | wlist_del (&anfds[w->fd].head, (WL)w); |
1965 | ev_stop (EV_A_ (W)w); |
2230 | ev_stop (EV_A_ (W)w); |
1966 | |
2231 | |
1967 | fd_change (EV_A_ w->fd, 1); |
2232 | fd_change (EV_A_ w->fd, 1); |
|
|
2233 | |
|
|
2234 | EV_FREQUENT_CHECK; |
1968 | } |
2235 | } |
1969 | |
2236 | |
1970 | void noinline |
2237 | void noinline |
1971 | ev_timer_start (EV_P_ ev_timer *w) |
2238 | ev_timer_start (EV_P_ ev_timer *w) |
1972 | { |
2239 | { |
1973 | if (expect_false (ev_is_active (w))) |
2240 | if (expect_false (ev_is_active (w))) |
1974 | return; |
2241 | return; |
1975 | |
2242 | |
1976 | ev_at (w) += mn_now; |
2243 | ev_at (w) += mn_now; |
1977 | |
2244 | |
1978 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2245 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1979 | |
2246 | |
|
|
2247 | EV_FREQUENT_CHECK; |
|
|
2248 | |
|
|
2249 | ++timercnt; |
1980 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2250 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1981 | array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2); |
2251 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1982 | timers [ev_active (w)] = (WT)w; |
2252 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2253 | ANHE_at_cache (timers [ev_active (w)]); |
1983 | upheap (timers, ev_active (w)); |
2254 | upheap (timers, ev_active (w)); |
1984 | |
2255 | |
|
|
2256 | EV_FREQUENT_CHECK; |
|
|
2257 | |
1985 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
2258 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1986 | } |
2259 | } |
1987 | |
2260 | |
1988 | void noinline |
2261 | void noinline |
1989 | ev_timer_stop (EV_P_ ev_timer *w) |
2262 | ev_timer_stop (EV_P_ ev_timer *w) |
1990 | { |
2263 | { |
1991 | clear_pending (EV_A_ (W)w); |
2264 | clear_pending (EV_A_ (W)w); |
1992 | if (expect_false (!ev_is_active (w))) |
2265 | if (expect_false (!ev_is_active (w))) |
1993 | return; |
2266 | return; |
1994 | |
2267 | |
|
|
2268 | EV_FREQUENT_CHECK; |
|
|
2269 | |
1995 | { |
2270 | { |
1996 | int active = ev_active (w); |
2271 | int active = ev_active (w); |
1997 | |
2272 | |
1998 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
2273 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1999 | |
2274 | |
|
|
2275 | --timercnt; |
|
|
2276 | |
2000 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2277 | if (expect_true (active < timercnt + HEAP0)) |
2001 | { |
2278 | { |
2002 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2279 | timers [active] = timers [timercnt + HEAP0]; |
2003 | adjustheap (timers, timercnt, active); |
2280 | adjustheap (timers, timercnt, active); |
2004 | } |
2281 | } |
2005 | |
|
|
2006 | --timercnt; |
|
|
2007 | } |
2282 | } |
|
|
2283 | |
|
|
2284 | EV_FREQUENT_CHECK; |
2008 | |
2285 | |
2009 | ev_at (w) -= mn_now; |
2286 | ev_at (w) -= mn_now; |
2010 | |
2287 | |
2011 | ev_stop (EV_A_ (W)w); |
2288 | ev_stop (EV_A_ (W)w); |
2012 | } |
2289 | } |
2013 | |
2290 | |
2014 | void noinline |
2291 | void noinline |
2015 | ev_timer_again (EV_P_ ev_timer *w) |
2292 | ev_timer_again (EV_P_ ev_timer *w) |
2016 | { |
2293 | { |
|
|
2294 | EV_FREQUENT_CHECK; |
|
|
2295 | |
2017 | if (ev_is_active (w)) |
2296 | if (ev_is_active (w)) |
2018 | { |
2297 | { |
2019 | if (w->repeat) |
2298 | if (w->repeat) |
2020 | { |
2299 | { |
2021 | ev_at (w) = mn_now + w->repeat; |
2300 | ev_at (w) = mn_now + w->repeat; |
|
|
2301 | ANHE_at_cache (timers [ev_active (w)]); |
2022 | adjustheap (timers, timercnt, ev_active (w)); |
2302 | adjustheap (timers, timercnt, ev_active (w)); |
2023 | } |
2303 | } |
2024 | else |
2304 | else |
2025 | ev_timer_stop (EV_A_ w); |
2305 | ev_timer_stop (EV_A_ w); |
2026 | } |
2306 | } |
2027 | else if (w->repeat) |
2307 | else if (w->repeat) |
2028 | { |
2308 | { |
2029 | ev_at (w) = w->repeat; |
2309 | ev_at (w) = w->repeat; |
2030 | ev_timer_start (EV_A_ w); |
2310 | ev_timer_start (EV_A_ w); |
2031 | } |
2311 | } |
|
|
2312 | |
|
|
2313 | EV_FREQUENT_CHECK; |
2032 | } |
2314 | } |
2033 | |
2315 | |
2034 | #if EV_PERIODIC_ENABLE |
2316 | #if EV_PERIODIC_ENABLE |
2035 | void noinline |
2317 | void noinline |
2036 | ev_periodic_start (EV_P_ ev_periodic *w) |
2318 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2040 | |
2322 | |
2041 | if (w->reschedule_cb) |
2323 | if (w->reschedule_cb) |
2042 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2324 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2043 | else if (w->interval) |
2325 | else if (w->interval) |
2044 | { |
2326 | { |
2045 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2327 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2046 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2328 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2047 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2329 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2048 | } |
2330 | } |
2049 | else |
2331 | else |
2050 | ev_at (w) = w->offset; |
2332 | ev_at (w) = w->offset; |
2051 | |
2333 | |
|
|
2334 | EV_FREQUENT_CHECK; |
|
|
2335 | |
|
|
2336 | ++periodiccnt; |
2052 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2337 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2053 | array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2); |
2338 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2054 | periodics [ev_active (w)] = (WT)w; |
2339 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
2340 | ANHE_at_cache (periodics [ev_active (w)]); |
2055 | upheap (periodics, ev_active (w)); |
2341 | upheap (periodics, ev_active (w)); |
2056 | |
2342 | |
|
|
2343 | EV_FREQUENT_CHECK; |
|
|
2344 | |
2057 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
2345 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2058 | } |
2346 | } |
2059 | |
2347 | |
2060 | void noinline |
2348 | void noinline |
2061 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2349 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2062 | { |
2350 | { |
2063 | clear_pending (EV_A_ (W)w); |
2351 | clear_pending (EV_A_ (W)w); |
2064 | if (expect_false (!ev_is_active (w))) |
2352 | if (expect_false (!ev_is_active (w))) |
2065 | return; |
2353 | return; |
2066 | |
2354 | |
|
|
2355 | EV_FREQUENT_CHECK; |
|
|
2356 | |
2067 | { |
2357 | { |
2068 | int active = ev_active (w); |
2358 | int active = ev_active (w); |
2069 | |
2359 | |
2070 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
2360 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2071 | |
2361 | |
|
|
2362 | --periodiccnt; |
|
|
2363 | |
2072 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2364 | if (expect_true (active < periodiccnt + HEAP0)) |
2073 | { |
2365 | { |
2074 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2366 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2075 | adjustheap (periodics, periodiccnt, active); |
2367 | adjustheap (periodics, periodiccnt, active); |
2076 | } |
2368 | } |
2077 | |
|
|
2078 | --periodiccnt; |
|
|
2079 | } |
2369 | } |
|
|
2370 | |
|
|
2371 | EV_FREQUENT_CHECK; |
2080 | |
2372 | |
2081 | ev_stop (EV_A_ (W)w); |
2373 | ev_stop (EV_A_ (W)w); |
2082 | } |
2374 | } |
2083 | |
2375 | |
2084 | void noinline |
2376 | void noinline |
… | |
… | |
2096 | |
2388 | |
2097 | void noinline |
2389 | void noinline |
2098 | ev_signal_start (EV_P_ ev_signal *w) |
2390 | ev_signal_start (EV_P_ ev_signal *w) |
2099 | { |
2391 | { |
2100 | #if EV_MULTIPLICITY |
2392 | #if EV_MULTIPLICITY |
2101 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2393 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2102 | #endif |
2394 | #endif |
2103 | if (expect_false (ev_is_active (w))) |
2395 | if (expect_false (ev_is_active (w))) |
2104 | return; |
2396 | return; |
2105 | |
2397 | |
2106 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2398 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2107 | |
2399 | |
2108 | evpipe_init (EV_A); |
2400 | evpipe_init (EV_A); |
|
|
2401 | |
|
|
2402 | EV_FREQUENT_CHECK; |
2109 | |
2403 | |
2110 | { |
2404 | { |
2111 | #ifndef _WIN32 |
2405 | #ifndef _WIN32 |
2112 | sigset_t full, prev; |
2406 | sigset_t full, prev; |
2113 | sigfillset (&full); |
2407 | sigfillset (&full); |
2114 | sigprocmask (SIG_SETMASK, &full, &prev); |
2408 | sigprocmask (SIG_SETMASK, &full, &prev); |
2115 | #endif |
2409 | #endif |
2116 | |
2410 | |
2117 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2411 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2118 | |
2412 | |
2119 | #ifndef _WIN32 |
2413 | #ifndef _WIN32 |
2120 | sigprocmask (SIG_SETMASK, &prev, 0); |
2414 | sigprocmask (SIG_SETMASK, &prev, 0); |
2121 | #endif |
2415 | #endif |
2122 | } |
2416 | } |
… | |
… | |
2134 | sigfillset (&sa.sa_mask); |
2428 | sigfillset (&sa.sa_mask); |
2135 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2429 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2136 | sigaction (w->signum, &sa, 0); |
2430 | sigaction (w->signum, &sa, 0); |
2137 | #endif |
2431 | #endif |
2138 | } |
2432 | } |
|
|
2433 | |
|
|
2434 | EV_FREQUENT_CHECK; |
2139 | } |
2435 | } |
2140 | |
2436 | |
2141 | void noinline |
2437 | void noinline |
2142 | ev_signal_stop (EV_P_ ev_signal *w) |
2438 | ev_signal_stop (EV_P_ ev_signal *w) |
2143 | { |
2439 | { |
2144 | clear_pending (EV_A_ (W)w); |
2440 | clear_pending (EV_A_ (W)w); |
2145 | if (expect_false (!ev_is_active (w))) |
2441 | if (expect_false (!ev_is_active (w))) |
2146 | return; |
2442 | return; |
2147 | |
2443 | |
|
|
2444 | EV_FREQUENT_CHECK; |
|
|
2445 | |
2148 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2446 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2149 | ev_stop (EV_A_ (W)w); |
2447 | ev_stop (EV_A_ (W)w); |
2150 | |
2448 | |
2151 | if (!signals [w->signum - 1].head) |
2449 | if (!signals [w->signum - 1].head) |
2152 | signal (w->signum, SIG_DFL); |
2450 | signal (w->signum, SIG_DFL); |
|
|
2451 | |
|
|
2452 | EV_FREQUENT_CHECK; |
2153 | } |
2453 | } |
2154 | |
2454 | |
2155 | void |
2455 | void |
2156 | ev_child_start (EV_P_ ev_child *w) |
2456 | ev_child_start (EV_P_ ev_child *w) |
2157 | { |
2457 | { |
2158 | #if EV_MULTIPLICITY |
2458 | #if EV_MULTIPLICITY |
2159 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2459 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2160 | #endif |
2460 | #endif |
2161 | if (expect_false (ev_is_active (w))) |
2461 | if (expect_false (ev_is_active (w))) |
2162 | return; |
2462 | return; |
2163 | |
2463 | |
|
|
2464 | EV_FREQUENT_CHECK; |
|
|
2465 | |
2164 | ev_start (EV_A_ (W)w, 1); |
2466 | ev_start (EV_A_ (W)w, 1); |
2165 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2467 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2468 | |
|
|
2469 | EV_FREQUENT_CHECK; |
2166 | } |
2470 | } |
2167 | |
2471 | |
2168 | void |
2472 | void |
2169 | ev_child_stop (EV_P_ ev_child *w) |
2473 | ev_child_stop (EV_P_ ev_child *w) |
2170 | { |
2474 | { |
2171 | clear_pending (EV_A_ (W)w); |
2475 | clear_pending (EV_A_ (W)w); |
2172 | if (expect_false (!ev_is_active (w))) |
2476 | if (expect_false (!ev_is_active (w))) |
2173 | return; |
2477 | return; |
2174 | |
2478 | |
|
|
2479 | EV_FREQUENT_CHECK; |
|
|
2480 | |
2175 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2481 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2176 | ev_stop (EV_A_ (W)w); |
2482 | ev_stop (EV_A_ (W)w); |
|
|
2483 | |
|
|
2484 | EV_FREQUENT_CHECK; |
2177 | } |
2485 | } |
2178 | |
2486 | |
2179 | #if EV_STAT_ENABLE |
2487 | #if EV_STAT_ENABLE |
2180 | |
2488 | |
2181 | # ifdef _WIN32 |
2489 | # ifdef _WIN32 |
2182 | # undef lstat |
2490 | # undef lstat |
2183 | # define lstat(a,b) _stati64 (a,b) |
2491 | # define lstat(a,b) _stati64 (a,b) |
2184 | # endif |
2492 | # endif |
2185 | |
2493 | |
2186 | #define DEF_STAT_INTERVAL 5.0074891 |
2494 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2495 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2187 | #define MIN_STAT_INTERVAL 0.1074891 |
2496 | #define MIN_STAT_INTERVAL 0.1074891 |
2188 | |
2497 | |
2189 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2498 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2190 | |
2499 | |
2191 | #if EV_USE_INOTIFY |
2500 | #if EV_USE_INOTIFY |
2192 | # define EV_INOTIFY_BUFSIZE 8192 |
2501 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2196 | { |
2505 | { |
2197 | 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); |
2506 | 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); |
2198 | |
2507 | |
2199 | if (w->wd < 0) |
2508 | if (w->wd < 0) |
2200 | { |
2509 | { |
|
|
2510 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2201 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2511 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2202 | |
2512 | |
2203 | /* monitor some parent directory for speedup hints */ |
2513 | /* monitor some parent directory for speedup hints */ |
2204 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2514 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2205 | /* but an efficiency issue only */ |
2515 | /* but an efficiency issue only */ |
2206 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2516 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2207 | { |
2517 | { |
2208 | char path [4096]; |
2518 | char path [4096]; |
2209 | strcpy (path, w->path); |
2519 | strcpy (path, w->path); |
… | |
… | |
2213 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2523 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2214 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2524 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2215 | |
2525 | |
2216 | char *pend = strrchr (path, '/'); |
2526 | char *pend = strrchr (path, '/'); |
2217 | |
2527 | |
2218 | if (!pend) |
2528 | if (!pend || pend == path) |
2219 | break; /* whoops, no '/', complain to your admin */ |
2529 | break; |
2220 | |
2530 | |
2221 | *pend = 0; |
2531 | *pend = 0; |
2222 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2532 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2223 | } |
2533 | } |
2224 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2534 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2225 | } |
2535 | } |
2226 | } |
2536 | } |
2227 | else |
|
|
2228 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2229 | |
2537 | |
2230 | if (w->wd >= 0) |
2538 | if (w->wd >= 0) |
|
|
2539 | { |
2231 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2540 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2541 | |
|
|
2542 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2543 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2544 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2545 | struct statfs sfs; |
|
|
2546 | |
|
|
2547 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2548 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2549 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2550 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2551 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2552 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2553 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2554 | return; |
|
|
2555 | |
|
|
2556 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2557 | ev_timer_again (EV_A_ &w->timer); |
|
|
2558 | } |
2232 | } |
2559 | } |
2233 | |
2560 | |
2234 | static void noinline |
2561 | static void noinline |
2235 | infy_del (EV_P_ ev_stat *w) |
2562 | infy_del (EV_P_ ev_stat *w) |
2236 | { |
2563 | { |
… | |
… | |
2250 | |
2577 | |
2251 | static void noinline |
2578 | static void noinline |
2252 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2579 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2253 | { |
2580 | { |
2254 | if (slot < 0) |
2581 | if (slot < 0) |
2255 | /* overflow, need to check for all hahs slots */ |
2582 | /* overflow, need to check for all hash slots */ |
2256 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2583 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2257 | infy_wd (EV_A_ slot, wd, ev); |
2584 | infy_wd (EV_A_ slot, wd, ev); |
2258 | else |
2585 | else |
2259 | { |
2586 | { |
2260 | WL w_; |
2587 | WL w_; |
… | |
… | |
2266 | |
2593 | |
2267 | if (w->wd == wd || wd == -1) |
2594 | if (w->wd == wd || wd == -1) |
2268 | { |
2595 | { |
2269 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2596 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2270 | { |
2597 | { |
|
|
2598 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2271 | w->wd = -1; |
2599 | w->wd = -1; |
2272 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2600 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2273 | } |
2601 | } |
2274 | |
2602 | |
2275 | stat_timer_cb (EV_A_ &w->timer, 0); |
2603 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2288 | |
2616 | |
2289 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2617 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2290 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2618 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2291 | } |
2619 | } |
2292 | |
2620 | |
2293 | void inline_size |
2621 | inline_size void |
|
|
2622 | check_2625 (EV_P) |
|
|
2623 | { |
|
|
2624 | /* kernels < 2.6.25 are borked |
|
|
2625 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2626 | */ |
|
|
2627 | struct utsname buf; |
|
|
2628 | int major, minor, micro; |
|
|
2629 | |
|
|
2630 | if (uname (&buf)) |
|
|
2631 | return; |
|
|
2632 | |
|
|
2633 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2634 | return; |
|
|
2635 | |
|
|
2636 | if (major < 2 |
|
|
2637 | || (major == 2 && minor < 6) |
|
|
2638 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2639 | return; |
|
|
2640 | |
|
|
2641 | fs_2625 = 1; |
|
|
2642 | } |
|
|
2643 | |
|
|
2644 | inline_size void |
2294 | infy_init (EV_P) |
2645 | infy_init (EV_P) |
2295 | { |
2646 | { |
2296 | if (fs_fd != -2) |
2647 | if (fs_fd != -2) |
2297 | return; |
2648 | return; |
|
|
2649 | |
|
|
2650 | fs_fd = -1; |
|
|
2651 | |
|
|
2652 | check_2625 (EV_A); |
2298 | |
2653 | |
2299 | fs_fd = inotify_init (); |
2654 | fs_fd = inotify_init (); |
2300 | |
2655 | |
2301 | if (fs_fd >= 0) |
2656 | if (fs_fd >= 0) |
2302 | { |
2657 | { |
… | |
… | |
2304 | ev_set_priority (&fs_w, EV_MAXPRI); |
2659 | ev_set_priority (&fs_w, EV_MAXPRI); |
2305 | ev_io_start (EV_A_ &fs_w); |
2660 | ev_io_start (EV_A_ &fs_w); |
2306 | } |
2661 | } |
2307 | } |
2662 | } |
2308 | |
2663 | |
2309 | void inline_size |
2664 | inline_size void |
2310 | infy_fork (EV_P) |
2665 | infy_fork (EV_P) |
2311 | { |
2666 | { |
2312 | int slot; |
2667 | int slot; |
2313 | |
2668 | |
2314 | if (fs_fd < 0) |
2669 | if (fs_fd < 0) |
… | |
… | |
2330 | w->wd = -1; |
2685 | w->wd = -1; |
2331 | |
2686 | |
2332 | if (fs_fd >= 0) |
2687 | if (fs_fd >= 0) |
2333 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2688 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2334 | else |
2689 | else |
2335 | ev_timer_start (EV_A_ &w->timer); |
2690 | ev_timer_again (EV_A_ &w->timer); |
2336 | } |
2691 | } |
2337 | |
|
|
2338 | } |
2692 | } |
2339 | } |
2693 | } |
2340 | |
2694 | |
|
|
2695 | #endif |
|
|
2696 | |
|
|
2697 | #ifdef _WIN32 |
|
|
2698 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2699 | #else |
|
|
2700 | # define EV_LSTAT(p,b) lstat (p, b) |
2341 | #endif |
2701 | #endif |
2342 | |
2702 | |
2343 | void |
2703 | void |
2344 | ev_stat_stat (EV_P_ ev_stat *w) |
2704 | ev_stat_stat (EV_P_ ev_stat *w) |
2345 | { |
2705 | { |
… | |
… | |
2372 | || w->prev.st_atime != w->attr.st_atime |
2732 | || w->prev.st_atime != w->attr.st_atime |
2373 | || w->prev.st_mtime != w->attr.st_mtime |
2733 | || w->prev.st_mtime != w->attr.st_mtime |
2374 | || w->prev.st_ctime != w->attr.st_ctime |
2734 | || w->prev.st_ctime != w->attr.st_ctime |
2375 | ) { |
2735 | ) { |
2376 | #if EV_USE_INOTIFY |
2736 | #if EV_USE_INOTIFY |
|
|
2737 | if (fs_fd >= 0) |
|
|
2738 | { |
2377 | infy_del (EV_A_ w); |
2739 | infy_del (EV_A_ w); |
2378 | infy_add (EV_A_ w); |
2740 | infy_add (EV_A_ w); |
2379 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2741 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2742 | } |
2380 | #endif |
2743 | #endif |
2381 | |
2744 | |
2382 | ev_feed_event (EV_A_ w, EV_STAT); |
2745 | ev_feed_event (EV_A_ w, EV_STAT); |
2383 | } |
2746 | } |
2384 | } |
2747 | } |
… | |
… | |
2387 | ev_stat_start (EV_P_ ev_stat *w) |
2750 | ev_stat_start (EV_P_ ev_stat *w) |
2388 | { |
2751 | { |
2389 | if (expect_false (ev_is_active (w))) |
2752 | if (expect_false (ev_is_active (w))) |
2390 | return; |
2753 | return; |
2391 | |
2754 | |
2392 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2393 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2394 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2395 | |
|
|
2396 | ev_stat_stat (EV_A_ w); |
2755 | ev_stat_stat (EV_A_ w); |
2397 | |
2756 | |
|
|
2757 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2398 | if (w->interval < MIN_STAT_INTERVAL) |
2758 | w->interval = MIN_STAT_INTERVAL; |
2399 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2400 | |
2759 | |
2401 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2760 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2402 | ev_set_priority (&w->timer, ev_priority (w)); |
2761 | ev_set_priority (&w->timer, ev_priority (w)); |
2403 | |
2762 | |
2404 | #if EV_USE_INOTIFY |
2763 | #if EV_USE_INOTIFY |
2405 | infy_init (EV_A); |
2764 | infy_init (EV_A); |
2406 | |
2765 | |
2407 | if (fs_fd >= 0) |
2766 | if (fs_fd >= 0) |
2408 | infy_add (EV_A_ w); |
2767 | infy_add (EV_A_ w); |
2409 | else |
2768 | else |
2410 | #endif |
2769 | #endif |
2411 | ev_timer_start (EV_A_ &w->timer); |
2770 | ev_timer_again (EV_A_ &w->timer); |
2412 | |
2771 | |
2413 | ev_start (EV_A_ (W)w, 1); |
2772 | ev_start (EV_A_ (W)w, 1); |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
2414 | } |
2775 | } |
2415 | |
2776 | |
2416 | void |
2777 | void |
2417 | ev_stat_stop (EV_P_ ev_stat *w) |
2778 | ev_stat_stop (EV_P_ ev_stat *w) |
2418 | { |
2779 | { |
2419 | clear_pending (EV_A_ (W)w); |
2780 | clear_pending (EV_A_ (W)w); |
2420 | if (expect_false (!ev_is_active (w))) |
2781 | if (expect_false (!ev_is_active (w))) |
2421 | return; |
2782 | return; |
2422 | |
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | |
2423 | #if EV_USE_INOTIFY |
2786 | #if EV_USE_INOTIFY |
2424 | infy_del (EV_A_ w); |
2787 | infy_del (EV_A_ w); |
2425 | #endif |
2788 | #endif |
2426 | ev_timer_stop (EV_A_ &w->timer); |
2789 | ev_timer_stop (EV_A_ &w->timer); |
2427 | |
2790 | |
2428 | ev_stop (EV_A_ (W)w); |
2791 | ev_stop (EV_A_ (W)w); |
|
|
2792 | |
|
|
2793 | EV_FREQUENT_CHECK; |
2429 | } |
2794 | } |
2430 | #endif |
2795 | #endif |
2431 | |
2796 | |
2432 | #if EV_IDLE_ENABLE |
2797 | #if EV_IDLE_ENABLE |
2433 | void |
2798 | void |
… | |
… | |
2435 | { |
2800 | { |
2436 | if (expect_false (ev_is_active (w))) |
2801 | if (expect_false (ev_is_active (w))) |
2437 | return; |
2802 | return; |
2438 | |
2803 | |
2439 | pri_adjust (EV_A_ (W)w); |
2804 | pri_adjust (EV_A_ (W)w); |
|
|
2805 | |
|
|
2806 | EV_FREQUENT_CHECK; |
2440 | |
2807 | |
2441 | { |
2808 | { |
2442 | int active = ++idlecnt [ABSPRI (w)]; |
2809 | int active = ++idlecnt [ABSPRI (w)]; |
2443 | |
2810 | |
2444 | ++idleall; |
2811 | ++idleall; |
2445 | ev_start (EV_A_ (W)w, active); |
2812 | ev_start (EV_A_ (W)w, active); |
2446 | |
2813 | |
2447 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2814 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2448 | idles [ABSPRI (w)][active - 1] = w; |
2815 | idles [ABSPRI (w)][active - 1] = w; |
2449 | } |
2816 | } |
|
|
2817 | |
|
|
2818 | EV_FREQUENT_CHECK; |
2450 | } |
2819 | } |
2451 | |
2820 | |
2452 | void |
2821 | void |
2453 | ev_idle_stop (EV_P_ ev_idle *w) |
2822 | ev_idle_stop (EV_P_ ev_idle *w) |
2454 | { |
2823 | { |
2455 | clear_pending (EV_A_ (W)w); |
2824 | clear_pending (EV_A_ (W)w); |
2456 | if (expect_false (!ev_is_active (w))) |
2825 | if (expect_false (!ev_is_active (w))) |
2457 | return; |
2826 | return; |
2458 | |
2827 | |
|
|
2828 | EV_FREQUENT_CHECK; |
|
|
2829 | |
2459 | { |
2830 | { |
2460 | int active = ev_active (w); |
2831 | int active = ev_active (w); |
2461 | |
2832 | |
2462 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2833 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2463 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2834 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2464 | |
2835 | |
2465 | ev_stop (EV_A_ (W)w); |
2836 | ev_stop (EV_A_ (W)w); |
2466 | --idleall; |
2837 | --idleall; |
2467 | } |
2838 | } |
|
|
2839 | |
|
|
2840 | EV_FREQUENT_CHECK; |
2468 | } |
2841 | } |
2469 | #endif |
2842 | #endif |
2470 | |
2843 | |
2471 | void |
2844 | void |
2472 | ev_prepare_start (EV_P_ ev_prepare *w) |
2845 | ev_prepare_start (EV_P_ ev_prepare *w) |
2473 | { |
2846 | { |
2474 | if (expect_false (ev_is_active (w))) |
2847 | if (expect_false (ev_is_active (w))) |
2475 | return; |
2848 | return; |
|
|
2849 | |
|
|
2850 | EV_FREQUENT_CHECK; |
2476 | |
2851 | |
2477 | ev_start (EV_A_ (W)w, ++preparecnt); |
2852 | ev_start (EV_A_ (W)w, ++preparecnt); |
2478 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2853 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2479 | prepares [preparecnt - 1] = w; |
2854 | prepares [preparecnt - 1] = w; |
|
|
2855 | |
|
|
2856 | EV_FREQUENT_CHECK; |
2480 | } |
2857 | } |
2481 | |
2858 | |
2482 | void |
2859 | void |
2483 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2860 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2484 | { |
2861 | { |
2485 | clear_pending (EV_A_ (W)w); |
2862 | clear_pending (EV_A_ (W)w); |
2486 | if (expect_false (!ev_is_active (w))) |
2863 | if (expect_false (!ev_is_active (w))) |
2487 | return; |
2864 | return; |
2488 | |
2865 | |
|
|
2866 | EV_FREQUENT_CHECK; |
|
|
2867 | |
2489 | { |
2868 | { |
2490 | int active = ev_active (w); |
2869 | int active = ev_active (w); |
2491 | |
2870 | |
2492 | prepares [active - 1] = prepares [--preparecnt]; |
2871 | prepares [active - 1] = prepares [--preparecnt]; |
2493 | ev_active (prepares [active - 1]) = active; |
2872 | ev_active (prepares [active - 1]) = active; |
2494 | } |
2873 | } |
2495 | |
2874 | |
2496 | ev_stop (EV_A_ (W)w); |
2875 | ev_stop (EV_A_ (W)w); |
|
|
2876 | |
|
|
2877 | EV_FREQUENT_CHECK; |
2497 | } |
2878 | } |
2498 | |
2879 | |
2499 | void |
2880 | void |
2500 | ev_check_start (EV_P_ ev_check *w) |
2881 | ev_check_start (EV_P_ ev_check *w) |
2501 | { |
2882 | { |
2502 | if (expect_false (ev_is_active (w))) |
2883 | if (expect_false (ev_is_active (w))) |
2503 | return; |
2884 | return; |
|
|
2885 | |
|
|
2886 | EV_FREQUENT_CHECK; |
2504 | |
2887 | |
2505 | ev_start (EV_A_ (W)w, ++checkcnt); |
2888 | ev_start (EV_A_ (W)w, ++checkcnt); |
2506 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2889 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2507 | checks [checkcnt - 1] = w; |
2890 | checks [checkcnt - 1] = w; |
|
|
2891 | |
|
|
2892 | EV_FREQUENT_CHECK; |
2508 | } |
2893 | } |
2509 | |
2894 | |
2510 | void |
2895 | void |
2511 | ev_check_stop (EV_P_ ev_check *w) |
2896 | ev_check_stop (EV_P_ ev_check *w) |
2512 | { |
2897 | { |
2513 | clear_pending (EV_A_ (W)w); |
2898 | clear_pending (EV_A_ (W)w); |
2514 | if (expect_false (!ev_is_active (w))) |
2899 | if (expect_false (!ev_is_active (w))) |
2515 | return; |
2900 | return; |
2516 | |
2901 | |
|
|
2902 | EV_FREQUENT_CHECK; |
|
|
2903 | |
2517 | { |
2904 | { |
2518 | int active = ev_active (w); |
2905 | int active = ev_active (w); |
2519 | |
2906 | |
2520 | checks [active - 1] = checks [--checkcnt]; |
2907 | checks [active - 1] = checks [--checkcnt]; |
2521 | ev_active (checks [active - 1]) = active; |
2908 | ev_active (checks [active - 1]) = active; |
2522 | } |
2909 | } |
2523 | |
2910 | |
2524 | ev_stop (EV_A_ (W)w); |
2911 | ev_stop (EV_A_ (W)w); |
|
|
2912 | |
|
|
2913 | EV_FREQUENT_CHECK; |
2525 | } |
2914 | } |
2526 | |
2915 | |
2527 | #if EV_EMBED_ENABLE |
2916 | #if EV_EMBED_ENABLE |
2528 | void noinline |
2917 | void noinline |
2529 | ev_embed_sweep (EV_P_ ev_embed *w) |
2918 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2556 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2945 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2557 | } |
2946 | } |
2558 | } |
2947 | } |
2559 | } |
2948 | } |
2560 | |
2949 | |
|
|
2950 | static void |
|
|
2951 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2952 | { |
|
|
2953 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2954 | |
|
|
2955 | ev_embed_stop (EV_A_ w); |
|
|
2956 | |
|
|
2957 | { |
|
|
2958 | struct ev_loop *loop = w->other; |
|
|
2959 | |
|
|
2960 | ev_loop_fork (EV_A); |
|
|
2961 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2962 | } |
|
|
2963 | |
|
|
2964 | ev_embed_start (EV_A_ w); |
|
|
2965 | } |
|
|
2966 | |
2561 | #if 0 |
2967 | #if 0 |
2562 | static void |
2968 | static void |
2563 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2969 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2564 | { |
2970 | { |
2565 | ev_idle_stop (EV_A_ idle); |
2971 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2572 | if (expect_false (ev_is_active (w))) |
2978 | if (expect_false (ev_is_active (w))) |
2573 | return; |
2979 | return; |
2574 | |
2980 | |
2575 | { |
2981 | { |
2576 | struct ev_loop *loop = w->other; |
2982 | struct ev_loop *loop = w->other; |
2577 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2983 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2578 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2984 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2579 | } |
2985 | } |
|
|
2986 | |
|
|
2987 | EV_FREQUENT_CHECK; |
2580 | |
2988 | |
2581 | ev_set_priority (&w->io, ev_priority (w)); |
2989 | ev_set_priority (&w->io, ev_priority (w)); |
2582 | ev_io_start (EV_A_ &w->io); |
2990 | ev_io_start (EV_A_ &w->io); |
2583 | |
2991 | |
2584 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2992 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2585 | ev_set_priority (&w->prepare, EV_MINPRI); |
2993 | ev_set_priority (&w->prepare, EV_MINPRI); |
2586 | ev_prepare_start (EV_A_ &w->prepare); |
2994 | ev_prepare_start (EV_A_ &w->prepare); |
2587 | |
2995 | |
|
|
2996 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2997 | ev_fork_start (EV_A_ &w->fork); |
|
|
2998 | |
2588 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2999 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2589 | |
3000 | |
2590 | ev_start (EV_A_ (W)w, 1); |
3001 | ev_start (EV_A_ (W)w, 1); |
|
|
3002 | |
|
|
3003 | EV_FREQUENT_CHECK; |
2591 | } |
3004 | } |
2592 | |
3005 | |
2593 | void |
3006 | void |
2594 | ev_embed_stop (EV_P_ ev_embed *w) |
3007 | ev_embed_stop (EV_P_ ev_embed *w) |
2595 | { |
3008 | { |
2596 | clear_pending (EV_A_ (W)w); |
3009 | clear_pending (EV_A_ (W)w); |
2597 | if (expect_false (!ev_is_active (w))) |
3010 | if (expect_false (!ev_is_active (w))) |
2598 | return; |
3011 | return; |
2599 | |
3012 | |
|
|
3013 | EV_FREQUENT_CHECK; |
|
|
3014 | |
2600 | ev_io_stop (EV_A_ &w->io); |
3015 | ev_io_stop (EV_A_ &w->io); |
2601 | ev_prepare_stop (EV_A_ &w->prepare); |
3016 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3017 | ev_fork_stop (EV_A_ &w->fork); |
2602 | |
3018 | |
2603 | ev_stop (EV_A_ (W)w); |
3019 | EV_FREQUENT_CHECK; |
2604 | } |
3020 | } |
2605 | #endif |
3021 | #endif |
2606 | |
3022 | |
2607 | #if EV_FORK_ENABLE |
3023 | #if EV_FORK_ENABLE |
2608 | void |
3024 | void |
2609 | ev_fork_start (EV_P_ ev_fork *w) |
3025 | ev_fork_start (EV_P_ ev_fork *w) |
2610 | { |
3026 | { |
2611 | if (expect_false (ev_is_active (w))) |
3027 | if (expect_false (ev_is_active (w))) |
2612 | return; |
3028 | return; |
|
|
3029 | |
|
|
3030 | EV_FREQUENT_CHECK; |
2613 | |
3031 | |
2614 | ev_start (EV_A_ (W)w, ++forkcnt); |
3032 | ev_start (EV_A_ (W)w, ++forkcnt); |
2615 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3033 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2616 | forks [forkcnt - 1] = w; |
3034 | forks [forkcnt - 1] = w; |
|
|
3035 | |
|
|
3036 | EV_FREQUENT_CHECK; |
2617 | } |
3037 | } |
2618 | |
3038 | |
2619 | void |
3039 | void |
2620 | ev_fork_stop (EV_P_ ev_fork *w) |
3040 | ev_fork_stop (EV_P_ ev_fork *w) |
2621 | { |
3041 | { |
2622 | clear_pending (EV_A_ (W)w); |
3042 | clear_pending (EV_A_ (W)w); |
2623 | if (expect_false (!ev_is_active (w))) |
3043 | if (expect_false (!ev_is_active (w))) |
2624 | return; |
3044 | return; |
2625 | |
3045 | |
|
|
3046 | EV_FREQUENT_CHECK; |
|
|
3047 | |
2626 | { |
3048 | { |
2627 | int active = ev_active (w); |
3049 | int active = ev_active (w); |
2628 | |
3050 | |
2629 | forks [active - 1] = forks [--forkcnt]; |
3051 | forks [active - 1] = forks [--forkcnt]; |
2630 | ev_active (forks [active - 1]) = active; |
3052 | ev_active (forks [active - 1]) = active; |
2631 | } |
3053 | } |
2632 | |
3054 | |
2633 | ev_stop (EV_A_ (W)w); |
3055 | ev_stop (EV_A_ (W)w); |
|
|
3056 | |
|
|
3057 | EV_FREQUENT_CHECK; |
2634 | } |
3058 | } |
2635 | #endif |
3059 | #endif |
2636 | |
3060 | |
2637 | #if EV_ASYNC_ENABLE |
3061 | #if EV_ASYNC_ENABLE |
2638 | void |
3062 | void |
… | |
… | |
2640 | { |
3064 | { |
2641 | if (expect_false (ev_is_active (w))) |
3065 | if (expect_false (ev_is_active (w))) |
2642 | return; |
3066 | return; |
2643 | |
3067 | |
2644 | evpipe_init (EV_A); |
3068 | evpipe_init (EV_A); |
|
|
3069 | |
|
|
3070 | EV_FREQUENT_CHECK; |
2645 | |
3071 | |
2646 | ev_start (EV_A_ (W)w, ++asynccnt); |
3072 | ev_start (EV_A_ (W)w, ++asynccnt); |
2647 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3073 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2648 | asyncs [asynccnt - 1] = w; |
3074 | asyncs [asynccnt - 1] = w; |
|
|
3075 | |
|
|
3076 | EV_FREQUENT_CHECK; |
2649 | } |
3077 | } |
2650 | |
3078 | |
2651 | void |
3079 | void |
2652 | ev_async_stop (EV_P_ ev_async *w) |
3080 | ev_async_stop (EV_P_ ev_async *w) |
2653 | { |
3081 | { |
2654 | clear_pending (EV_A_ (W)w); |
3082 | clear_pending (EV_A_ (W)w); |
2655 | if (expect_false (!ev_is_active (w))) |
3083 | if (expect_false (!ev_is_active (w))) |
2656 | return; |
3084 | return; |
2657 | |
3085 | |
|
|
3086 | EV_FREQUENT_CHECK; |
|
|
3087 | |
2658 | { |
3088 | { |
2659 | int active = ev_active (w); |
3089 | int active = ev_active (w); |
2660 | |
3090 | |
2661 | asyncs [active - 1] = asyncs [--asynccnt]; |
3091 | asyncs [active - 1] = asyncs [--asynccnt]; |
2662 | ev_active (asyncs [active - 1]) = active; |
3092 | ev_active (asyncs [active - 1]) = active; |
2663 | } |
3093 | } |
2664 | |
3094 | |
2665 | ev_stop (EV_A_ (W)w); |
3095 | ev_stop (EV_A_ (W)w); |
|
|
3096 | |
|
|
3097 | EV_FREQUENT_CHECK; |
2666 | } |
3098 | } |
2667 | |
3099 | |
2668 | void |
3100 | void |
2669 | ev_async_send (EV_P_ ev_async *w) |
3101 | ev_async_send (EV_P_ ev_async *w) |
2670 | { |
3102 | { |
… | |
… | |
2687 | once_cb (EV_P_ struct ev_once *once, int revents) |
3119 | once_cb (EV_P_ struct ev_once *once, int revents) |
2688 | { |
3120 | { |
2689 | void (*cb)(int revents, void *arg) = once->cb; |
3121 | void (*cb)(int revents, void *arg) = once->cb; |
2690 | void *arg = once->arg; |
3122 | void *arg = once->arg; |
2691 | |
3123 | |
2692 | ev_io_stop (EV_A_ &once->io); |
3124 | ev_io_stop (EV_A_ &once->io); |
2693 | ev_timer_stop (EV_A_ &once->to); |
3125 | ev_timer_stop (EV_A_ &once->to); |
2694 | ev_free (once); |
3126 | ev_free (once); |
2695 | |
3127 | |
2696 | cb (revents, arg); |
3128 | cb (revents, arg); |
2697 | } |
3129 | } |
2698 | |
3130 | |
2699 | static void |
3131 | static void |
2700 | once_cb_io (EV_P_ ev_io *w, int revents) |
3132 | once_cb_io (EV_P_ ev_io *w, int revents) |
2701 | { |
3133 | { |
2702 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3134 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3135 | |
|
|
3136 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2703 | } |
3137 | } |
2704 | |
3138 | |
2705 | static void |
3139 | static void |
2706 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3140 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2707 | { |
3141 | { |
2708 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3142 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3143 | |
|
|
3144 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2709 | } |
3145 | } |
2710 | |
3146 | |
2711 | void |
3147 | void |
2712 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3148 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2713 | { |
3149 | { |
… | |
… | |
2735 | ev_timer_set (&once->to, timeout, 0.); |
3171 | ev_timer_set (&once->to, timeout, 0.); |
2736 | ev_timer_start (EV_A_ &once->to); |
3172 | ev_timer_start (EV_A_ &once->to); |
2737 | } |
3173 | } |
2738 | } |
3174 | } |
2739 | |
3175 | |
|
|
3176 | /*****************************************************************************/ |
|
|
3177 | |
|
|
3178 | #if 0 |
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3179 | void |
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3180 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
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3181 | { |
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3182 | int i, j; |
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3183 | ev_watcher_list *wl, *wn; |
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3184 | |
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3185 | if (types & (EV_IO | EV_EMBED)) |
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3186 | for (i = 0; i < anfdmax; ++i) |
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3187 | for (wl = anfds [i].head; wl; ) |
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3188 | { |
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3189 | wn = wl->next; |
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3190 | |
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3191 | #if EV_EMBED_ENABLE |
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3192 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
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3193 | { |
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3194 | if (types & EV_EMBED) |
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3195 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
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3196 | } |
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3197 | else |
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3198 | #endif |
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3199 | #if EV_USE_INOTIFY |
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3200 | if (ev_cb ((ev_io *)wl) == infy_cb) |
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3201 | ; |
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3202 | else |
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3203 | #endif |
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3204 | if ((ev_io *)wl != &pipeev) |
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3205 | if (types & EV_IO) |
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3206 | cb (EV_A_ EV_IO, wl); |
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3207 | |
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3208 | wl = wn; |
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3209 | } |
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3210 | |
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3211 | if (types & (EV_TIMER | EV_STAT)) |
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3212 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
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3213 | #if EV_STAT_ENABLE |
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3214 | /*TODO: timer is not always active*/ |
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3215 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
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3216 | { |
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3217 | if (types & EV_STAT) |
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3218 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
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3219 | } |
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3220 | else |
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3221 | #endif |
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3222 | if (types & EV_TIMER) |
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3223 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
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3224 | |
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3225 | #if EV_PERIODIC_ENABLE |
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3226 | if (types & EV_PERIODIC) |
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3227 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
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3228 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
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3229 | #endif |
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3230 | |
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3231 | #if EV_IDLE_ENABLE |
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3232 | if (types & EV_IDLE) |
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3233 | for (j = NUMPRI; i--; ) |
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3234 | for (i = idlecnt [j]; i--; ) |
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3235 | cb (EV_A_ EV_IDLE, idles [j][i]); |
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3236 | #endif |
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3237 | |
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3238 | #if EV_FORK_ENABLE |
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3239 | if (types & EV_FORK) |
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3240 | for (i = forkcnt; i--; ) |
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3241 | if (ev_cb (forks [i]) != embed_fork_cb) |
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3242 | cb (EV_A_ EV_FORK, forks [i]); |
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3243 | #endif |
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3244 | |
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3245 | #if EV_ASYNC_ENABLE |
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3246 | if (types & EV_ASYNC) |
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3247 | for (i = asynccnt; i--; ) |
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3248 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
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3249 | #endif |
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3250 | |
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3251 | if (types & EV_PREPARE) |
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3252 | for (i = preparecnt; i--; ) |
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3253 | #if EV_EMBED_ENABLE |
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3254 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
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3255 | #endif |
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3256 | cb (EV_A_ EV_PREPARE, prepares [i]); |
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3257 | |
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3258 | if (types & EV_CHECK) |
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3259 | for (i = checkcnt; i--; ) |
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3260 | cb (EV_A_ EV_CHECK, checks [i]); |
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3261 | |
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3262 | if (types & EV_SIGNAL) |
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3263 | for (i = 0; i < signalmax; ++i) |
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3264 | for (wl = signals [i].head; wl; ) |
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3265 | { |
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3266 | wn = wl->next; |
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3267 | cb (EV_A_ EV_SIGNAL, wl); |
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3268 | wl = wn; |
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3269 | } |
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3270 | |
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3271 | if (types & EV_CHILD) |
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3272 | for (i = EV_PID_HASHSIZE; i--; ) |
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3273 | for (wl = childs [i]; wl; ) |
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3274 | { |
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3275 | wn = wl->next; |
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3276 | cb (EV_A_ EV_CHILD, wl); |
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3277 | wl = wn; |
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3278 | } |
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3279 | /* EV_STAT 0x00001000 /* stat data changed */ |
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3280 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
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3281 | } |
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3282 | #endif |
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3283 | |
2740 | #if EV_MULTIPLICITY |
3284 | #if EV_MULTIPLICITY |
2741 | #include "ev_wrap.h" |
3285 | #include "ev_wrap.h" |
2742 | #endif |
3286 | #endif |
2743 | |
3287 | |
2744 | #ifdef __cplusplus |
3288 | #ifdef __cplusplus |