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 |
|
|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
64 | # endif |
|
|
65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
126 | # define EV_USE_EVENTFD 1 |
140 | # define EV_USE_EVENTFD 1 |
127 | # else |
141 | # else |
128 | # define EV_USE_EVENTFD 0 |
142 | # define EV_USE_EVENTFD 0 |
129 | # endif |
143 | # endif |
130 | # endif |
144 | # endif |
131 | |
145 | |
132 | #endif |
146 | #endif |
133 | |
147 | |
134 | #include <math.h> |
148 | #include <math.h> |
135 | #include <stdlib.h> |
149 | #include <stdlib.h> |
136 | #include <fcntl.h> |
150 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
168 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
169 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
170 | # include <sys/wait.h> |
157 | # include <unistd.h> |
171 | # include <unistd.h> |
158 | #else |
172 | #else |
|
|
173 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
174 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
175 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
178 | # endif |
164 | #endif |
179 | #endif |
165 | |
180 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
182 | |
|
|
183 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
184 | # if __linux && __GLIBC__ >= 2 |
|
|
185 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
186 | # else |
|
|
187 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
188 | # endif |
|
|
189 | #endif |
|
|
190 | |
168 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
|
|
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
193 | # define EV_USE_MONOTONIC 1 |
|
|
194 | # else |
169 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
|
|
196 | # endif |
170 | #endif |
197 | #endif |
171 | |
198 | |
172 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
201 | #endif |
175 | |
202 | |
176 | #ifndef EV_USE_NANOSLEEP |
203 | #ifndef EV_USE_NANOSLEEP |
|
|
204 | # if _POSIX_C_SOURCE >= 199309L |
|
|
205 | # define EV_USE_NANOSLEEP 1 |
|
|
206 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
207 | # define EV_USE_NANOSLEEP 0 |
|
|
208 | # endif |
178 | #endif |
209 | #endif |
179 | |
210 | |
180 | #ifndef EV_USE_SELECT |
211 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
212 | # define EV_USE_SELECT 1 |
182 | #endif |
213 | #endif |
… | |
… | |
235 | # else |
266 | # else |
236 | # define EV_USE_EVENTFD 0 |
267 | # define EV_USE_EVENTFD 0 |
237 | # endif |
268 | # endif |
238 | #endif |
269 | #endif |
239 | |
270 | |
|
|
271 | #if 0 /* debugging */ |
|
|
272 | # define EV_VERIFY 3 |
|
|
273 | # define EV_USE_4HEAP 1 |
|
|
274 | # define EV_HEAP_CACHE_AT 1 |
|
|
275 | #endif |
|
|
276 | |
|
|
277 | #ifndef EV_VERIFY |
|
|
278 | # define EV_VERIFY !EV_MINIMAL |
|
|
279 | #endif |
|
|
280 | |
240 | #ifndef EV_USE_4HEAP |
281 | #ifndef EV_USE_4HEAP |
241 | # define EV_USE_4HEAP !EV_MINIMAL |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
242 | #endif |
283 | #endif |
243 | |
284 | |
244 | #ifndef EV_HEAP_CACHE_AT |
285 | #ifndef EV_HEAP_CACHE_AT |
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
287 | #endif |
|
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288 | |
|
|
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
290 | /* which makes programs even slower. might work on other unices, too. */ |
|
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291 | #if EV_USE_CLOCK_SYSCALL |
|
|
292 | # include <syscall.h> |
|
|
293 | # ifdef SYS_clock_gettime |
|
|
294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
295 | # undef EV_USE_MONOTONIC |
|
|
296 | # define EV_USE_MONOTONIC 1 |
|
|
297 | # else |
|
|
298 | # undef EV_USE_CLOCK_SYSCALL |
|
|
299 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
300 | # endif |
246 | #endif |
301 | #endif |
247 | |
302 | |
248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
249 | |
304 | |
250 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
267 | # include <sys/select.h> |
322 | # include <sys/select.h> |
268 | # endif |
323 | # endif |
269 | #endif |
324 | #endif |
270 | |
325 | |
271 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
|
|
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
272 | # include <sys/inotify.h> |
329 | # include <sys/inotify.h> |
|
|
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
331 | # ifndef IN_DONT_FOLLOW |
|
|
332 | # undef EV_USE_INOTIFY |
|
|
333 | # define EV_USE_INOTIFY 0 |
|
|
334 | # endif |
273 | #endif |
335 | #endif |
274 | |
336 | |
275 | #if EV_SELECT_IS_WINSOCKET |
337 | #if EV_SELECT_IS_WINSOCKET |
276 | # include <winsock.h> |
338 | # include <winsock.h> |
277 | #endif |
339 | #endif |
… | |
… | |
287 | } |
349 | } |
288 | # endif |
350 | # endif |
289 | #endif |
351 | #endif |
290 | |
352 | |
291 | /**/ |
353 | /**/ |
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|
354 | |
|
|
355 | #if EV_VERIFY >= 3 |
|
|
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
357 | #else |
|
|
358 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
359 | #endif |
292 | |
360 | |
293 | /* |
361 | /* |
294 | * This is used to avoid floating point rounding problems. |
362 | * This is used to avoid floating point rounding problems. |
295 | * It is added to ev_rt_now when scheduling periodics |
363 | * It is added to ev_rt_now when scheduling periodics |
296 | * to ensure progress, time-wise, even when rounding |
364 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
323 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
324 | #else |
392 | #else |
325 | # define inline_speed static inline |
393 | # define inline_speed static inline |
326 | #endif |
394 | #endif |
327 | |
395 | |
328 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
397 | |
|
|
398 | #if EV_MINPRI == EV_MAXPRI |
|
|
399 | # define ABSPRI(w) (((W)w), 0) |
|
|
400 | #else |
329 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
402 | #endif |
330 | |
403 | |
331 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
332 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
333 | |
406 | |
334 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
… | |
… | |
336 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
337 | |
410 | |
338 | #define ev_active(w) ((W)(w))->active |
411 | #define ev_active(w) ((W)(w))->active |
339 | #define ev_at(w) ((WT)(w))->at |
412 | #define ev_at(w) ((WT)(w))->at |
340 | |
413 | |
341 | #if EV_USE_MONOTONIC |
414 | #if EV_USE_REALTIME |
342 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
343 | /* giving it a reasonably high chance of working on typical architetcures */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
418 | #endif |
|
|
419 | |
|
|
420 | #if EV_USE_MONOTONIC |
344 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
345 | #endif |
422 | #endif |
346 | |
423 | |
347 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
348 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
… | |
… | |
357 | { |
434 | { |
358 | syserr_cb = cb; |
435 | syserr_cb = cb; |
359 | } |
436 | } |
360 | |
437 | |
361 | static void noinline |
438 | static void noinline |
362 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
363 | { |
440 | { |
364 | if (!msg) |
441 | if (!msg) |
365 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
366 | |
443 | |
367 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
413 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
414 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
415 | |
492 | |
416 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
417 | |
494 | |
|
|
495 | /* set in reify when reification needed */ |
|
|
496 | #define EV_ANFD_REIFY 1 |
|
|
497 | |
|
|
498 | /* file descriptor info structure */ |
418 | typedef struct |
499 | typedef struct |
419 | { |
500 | { |
420 | WL head; |
501 | WL head; |
421 | unsigned char events; |
502 | unsigned char events; /* the events watched for */ |
|
|
503 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
504 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
422 | unsigned char reify; |
505 | unsigned char unused; |
|
|
506 | #if EV_USE_EPOLL |
|
|
507 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
508 | #endif |
423 | #if EV_SELECT_IS_WINSOCKET |
509 | #if EV_SELECT_IS_WINSOCKET |
424 | SOCKET handle; |
510 | SOCKET handle; |
425 | #endif |
511 | #endif |
426 | } ANFD; |
512 | } ANFD; |
427 | |
513 | |
|
|
514 | /* stores the pending event set for a given watcher */ |
428 | typedef struct |
515 | typedef struct |
429 | { |
516 | { |
430 | W w; |
517 | W w; |
431 | int events; |
518 | int events; /* the pending event set for the given watcher */ |
432 | } ANPENDING; |
519 | } ANPENDING; |
433 | |
520 | |
434 | #if EV_USE_INOTIFY |
521 | #if EV_USE_INOTIFY |
435 | /* hash table entry per inotify-id */ |
522 | /* hash table entry per inotify-id */ |
436 | typedef struct |
523 | typedef struct |
… | |
… | |
439 | } ANFS; |
526 | } ANFS; |
440 | #endif |
527 | #endif |
441 | |
528 | |
442 | /* Heap Entry */ |
529 | /* Heap Entry */ |
443 | #if EV_HEAP_CACHE_AT |
530 | #if EV_HEAP_CACHE_AT |
|
|
531 | /* a heap element */ |
444 | typedef struct { |
532 | typedef struct { |
445 | ev_tstamp at; |
533 | ev_tstamp at; |
446 | WT w; |
534 | WT w; |
447 | } ANHE; |
535 | } ANHE; |
448 | |
536 | |
449 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
537 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
450 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
538 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
451 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
539 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
452 | #else |
540 | #else |
|
|
541 | /* a heap element */ |
453 | typedef WT ANHE; |
542 | typedef WT ANHE; |
454 | |
543 | |
455 | #define ANHE_w(he) (he) |
544 | #define ANHE_w(he) (he) |
456 | #define ANHE_at(he) (he)->at |
545 | #define ANHE_at(he) (he)->at |
457 | #define ANHE_at_set(he) |
546 | #define ANHE_at_cache(he) |
458 | #endif |
547 | #endif |
459 | |
548 | |
460 | #if EV_MULTIPLICITY |
549 | #if EV_MULTIPLICITY |
461 | |
550 | |
462 | struct ev_loop |
551 | struct ev_loop |
… | |
… | |
481 | |
570 | |
482 | static int ev_default_loop_ptr; |
571 | static int ev_default_loop_ptr; |
483 | |
572 | |
484 | #endif |
573 | #endif |
485 | |
574 | |
|
|
575 | #if EV_MINIMAL < 2 |
|
|
576 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
577 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
578 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
579 | #else |
|
|
580 | # define EV_RELEASE_CB (void)0 |
|
|
581 | # define EV_ACQUIRE_CB (void)0 |
|
|
582 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
583 | #endif |
|
|
584 | |
|
|
585 | #define EVUNLOOP_RECURSE 0x80 |
|
|
586 | |
486 | /*****************************************************************************/ |
587 | /*****************************************************************************/ |
487 | |
588 | |
|
|
589 | #ifndef EV_HAVE_EV_TIME |
488 | ev_tstamp |
590 | ev_tstamp |
489 | ev_time (void) |
591 | ev_time (void) |
490 | { |
592 | { |
491 | #if EV_USE_REALTIME |
593 | #if EV_USE_REALTIME |
|
|
594 | if (expect_true (have_realtime)) |
|
|
595 | { |
492 | struct timespec ts; |
596 | struct timespec ts; |
493 | clock_gettime (CLOCK_REALTIME, &ts); |
597 | clock_gettime (CLOCK_REALTIME, &ts); |
494 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
598 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
495 | #else |
599 | } |
|
|
600 | #endif |
|
|
601 | |
496 | struct timeval tv; |
602 | struct timeval tv; |
497 | gettimeofday (&tv, 0); |
603 | gettimeofday (&tv, 0); |
498 | return tv.tv_sec + tv.tv_usec * 1e-6; |
604 | return tv.tv_sec + tv.tv_usec * 1e-6; |
499 | #endif |
|
|
500 | } |
605 | } |
|
|
606 | #endif |
501 | |
607 | |
502 | ev_tstamp inline_size |
608 | inline_size ev_tstamp |
503 | get_clock (void) |
609 | get_clock (void) |
504 | { |
610 | { |
505 | #if EV_USE_MONOTONIC |
611 | #if EV_USE_MONOTONIC |
506 | if (expect_true (have_monotonic)) |
612 | if (expect_true (have_monotonic)) |
507 | { |
613 | { |
… | |
… | |
540 | struct timeval tv; |
646 | struct timeval tv; |
541 | |
647 | |
542 | tv.tv_sec = (time_t)delay; |
648 | tv.tv_sec = (time_t)delay; |
543 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
649 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
544 | |
650 | |
|
|
651 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
652 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
|
|
653 | /* by older ones */ |
545 | select (0, 0, 0, 0, &tv); |
654 | select (0, 0, 0, 0, &tv); |
546 | #endif |
655 | #endif |
547 | } |
656 | } |
548 | } |
657 | } |
549 | |
658 | |
550 | /*****************************************************************************/ |
659 | /*****************************************************************************/ |
551 | |
660 | |
552 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
661 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
553 | |
662 | |
554 | int inline_size |
663 | /* find a suitable new size for the given array, */ |
|
|
664 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
665 | inline_size int |
555 | array_nextsize (int elem, int cur, int cnt) |
666 | array_nextsize (int elem, int cur, int cnt) |
556 | { |
667 | { |
557 | int ncur = cur + 1; |
668 | int ncur = cur + 1; |
558 | |
669 | |
559 | do |
670 | do |
… | |
… | |
576 | array_realloc (int elem, void *base, int *cur, int cnt) |
687 | array_realloc (int elem, void *base, int *cur, int cnt) |
577 | { |
688 | { |
578 | *cur = array_nextsize (elem, *cur, cnt); |
689 | *cur = array_nextsize (elem, *cur, cnt); |
579 | return ev_realloc (base, elem * *cur); |
690 | return ev_realloc (base, elem * *cur); |
580 | } |
691 | } |
|
|
692 | |
|
|
693 | #define array_init_zero(base,count) \ |
|
|
694 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
581 | |
695 | |
582 | #define array_needsize(type,base,cur,cnt,init) \ |
696 | #define array_needsize(type,base,cur,cnt,init) \ |
583 | if (expect_false ((cnt) > (cur))) \ |
697 | if (expect_false ((cnt) > (cur))) \ |
584 | { \ |
698 | { \ |
585 | int ocur_ = (cur); \ |
699 | int ocur_ = (cur); \ |
… | |
… | |
597 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
711 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
598 | } |
712 | } |
599 | #endif |
713 | #endif |
600 | |
714 | |
601 | #define array_free(stem, idx) \ |
715 | #define array_free(stem, idx) \ |
602 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
716 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
603 | |
717 | |
604 | /*****************************************************************************/ |
718 | /*****************************************************************************/ |
|
|
719 | |
|
|
720 | /* dummy callback for pending events */ |
|
|
721 | static void noinline |
|
|
722 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
723 | { |
|
|
724 | } |
605 | |
725 | |
606 | void noinline |
726 | void noinline |
607 | ev_feed_event (EV_P_ void *w, int revents) |
727 | ev_feed_event (EV_P_ void *w, int revents) |
608 | { |
728 | { |
609 | W w_ = (W)w; |
729 | W w_ = (W)w; |
… | |
… | |
618 | pendings [pri][w_->pending - 1].w = w_; |
738 | pendings [pri][w_->pending - 1].w = w_; |
619 | pendings [pri][w_->pending - 1].events = revents; |
739 | pendings [pri][w_->pending - 1].events = revents; |
620 | } |
740 | } |
621 | } |
741 | } |
622 | |
742 | |
623 | void inline_speed |
743 | inline_speed void |
|
|
744 | feed_reverse (EV_P_ W w) |
|
|
745 | { |
|
|
746 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
747 | rfeeds [rfeedcnt++] = w; |
|
|
748 | } |
|
|
749 | |
|
|
750 | inline_size void |
|
|
751 | feed_reverse_done (EV_P_ int revents) |
|
|
752 | { |
|
|
753 | do |
|
|
754 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
755 | while (rfeedcnt); |
|
|
756 | } |
|
|
757 | |
|
|
758 | inline_speed void |
624 | queue_events (EV_P_ W *events, int eventcnt, int type) |
759 | queue_events (EV_P_ W *events, int eventcnt, int type) |
625 | { |
760 | { |
626 | int i; |
761 | int i; |
627 | |
762 | |
628 | for (i = 0; i < eventcnt; ++i) |
763 | for (i = 0; i < eventcnt; ++i) |
629 | ev_feed_event (EV_A_ events [i], type); |
764 | ev_feed_event (EV_A_ events [i], type); |
630 | } |
765 | } |
631 | |
766 | |
632 | /*****************************************************************************/ |
767 | /*****************************************************************************/ |
633 | |
768 | |
634 | void inline_size |
769 | inline_speed void |
635 | anfds_init (ANFD *base, int count) |
|
|
636 | { |
|
|
637 | while (count--) |
|
|
638 | { |
|
|
639 | base->head = 0; |
|
|
640 | base->events = EV_NONE; |
|
|
641 | base->reify = 0; |
|
|
642 | |
|
|
643 | ++base; |
|
|
644 | } |
|
|
645 | } |
|
|
646 | |
|
|
647 | void inline_speed |
|
|
648 | fd_event (EV_P_ int fd, int revents) |
770 | fd_event_nc (EV_P_ int fd, int revents) |
649 | { |
771 | { |
650 | ANFD *anfd = anfds + fd; |
772 | ANFD *anfd = anfds + fd; |
651 | ev_io *w; |
773 | ev_io *w; |
652 | |
774 | |
653 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
775 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
657 | if (ev) |
779 | if (ev) |
658 | ev_feed_event (EV_A_ (W)w, ev); |
780 | ev_feed_event (EV_A_ (W)w, ev); |
659 | } |
781 | } |
660 | } |
782 | } |
661 | |
783 | |
|
|
784 | /* do not submit kernel events for fds that have reify set */ |
|
|
785 | /* because that means they changed while we were polling for new events */ |
|
|
786 | inline_speed void |
|
|
787 | fd_event (EV_P_ int fd, int revents) |
|
|
788 | { |
|
|
789 | ANFD *anfd = anfds + fd; |
|
|
790 | |
|
|
791 | if (expect_true (!anfd->reify)) |
|
|
792 | fd_event_nc (EV_A_ fd, revents); |
|
|
793 | } |
|
|
794 | |
662 | void |
795 | void |
663 | ev_feed_fd_event (EV_P_ int fd, int revents) |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
664 | { |
797 | { |
665 | if (fd >= 0 && fd < anfdmax) |
798 | if (fd >= 0 && fd < anfdmax) |
666 | fd_event (EV_A_ fd, revents); |
799 | fd_event_nc (EV_A_ fd, revents); |
667 | } |
800 | } |
668 | |
801 | |
669 | void inline_size |
802 | /* make sure the external fd watch events are in-sync */ |
|
|
803 | /* with the kernel/libev internal state */ |
|
|
804 | inline_size void |
670 | fd_reify (EV_P) |
805 | fd_reify (EV_P) |
671 | { |
806 | { |
672 | int i; |
807 | int i; |
673 | |
808 | |
674 | for (i = 0; i < fdchangecnt; ++i) |
809 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
683 | events |= (unsigned char)w->events; |
818 | events |= (unsigned char)w->events; |
684 | |
819 | |
685 | #if EV_SELECT_IS_WINSOCKET |
820 | #if EV_SELECT_IS_WINSOCKET |
686 | if (events) |
821 | if (events) |
687 | { |
822 | { |
688 | unsigned long argp; |
823 | unsigned long arg; |
689 | #ifdef EV_FD_TO_WIN32_HANDLE |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
690 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
691 | #else |
826 | #else |
692 | anfd->handle = _get_osfhandle (fd); |
827 | anfd->handle = _get_osfhandle (fd); |
693 | #endif |
828 | #endif |
694 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
829 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
695 | } |
830 | } |
696 | #endif |
831 | #endif |
697 | |
832 | |
698 | { |
833 | { |
699 | unsigned char o_events = anfd->events; |
834 | unsigned char o_events = anfd->events; |
700 | unsigned char o_reify = anfd->reify; |
835 | unsigned char o_reify = anfd->reify; |
701 | |
836 | |
702 | anfd->reify = 0; |
837 | anfd->reify = 0; |
703 | anfd->events = events; |
838 | anfd->events = events; |
704 | |
839 | |
705 | if (o_events != events || o_reify & EV_IOFDSET) |
840 | if (o_events != events || o_reify & EV__IOFDSET) |
706 | backend_modify (EV_A_ fd, o_events, events); |
841 | backend_modify (EV_A_ fd, o_events, events); |
707 | } |
842 | } |
708 | } |
843 | } |
709 | |
844 | |
710 | fdchangecnt = 0; |
845 | fdchangecnt = 0; |
711 | } |
846 | } |
712 | |
847 | |
713 | void inline_size |
848 | /* something about the given fd changed */ |
|
|
849 | inline_size void |
714 | fd_change (EV_P_ int fd, int flags) |
850 | fd_change (EV_P_ int fd, int flags) |
715 | { |
851 | { |
716 | unsigned char reify = anfds [fd].reify; |
852 | unsigned char reify = anfds [fd].reify; |
717 | anfds [fd].reify |= flags; |
853 | anfds [fd].reify |= flags; |
718 | |
854 | |
… | |
… | |
722 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
858 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
723 | fdchanges [fdchangecnt - 1] = fd; |
859 | fdchanges [fdchangecnt - 1] = fd; |
724 | } |
860 | } |
725 | } |
861 | } |
726 | |
862 | |
727 | void inline_speed |
863 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
864 | inline_speed void |
728 | fd_kill (EV_P_ int fd) |
865 | fd_kill (EV_P_ int fd) |
729 | { |
866 | { |
730 | ev_io *w; |
867 | ev_io *w; |
731 | |
868 | |
732 | while ((w = (ev_io *)anfds [fd].head)) |
869 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
734 | ev_io_stop (EV_A_ w); |
871 | ev_io_stop (EV_A_ w); |
735 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
872 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
736 | } |
873 | } |
737 | } |
874 | } |
738 | |
875 | |
739 | int inline_size |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
877 | inline_size int |
740 | fd_valid (int fd) |
878 | fd_valid (int fd) |
741 | { |
879 | { |
742 | #ifdef _WIN32 |
880 | #ifdef _WIN32 |
743 | return _get_osfhandle (fd) != -1; |
881 | return _get_osfhandle (fd) != -1; |
744 | #else |
882 | #else |
… | |
… | |
752 | { |
890 | { |
753 | int fd; |
891 | int fd; |
754 | |
892 | |
755 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
756 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
757 | if (!fd_valid (fd) == -1 && errno == EBADF) |
895 | if (!fd_valid (fd) && errno == EBADF) |
758 | fd_kill (EV_A_ fd); |
896 | fd_kill (EV_A_ fd); |
759 | } |
897 | } |
760 | |
898 | |
761 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
899 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
762 | static void noinline |
900 | static void noinline |
… | |
… | |
780 | |
918 | |
781 | for (fd = 0; fd < anfdmax; ++fd) |
919 | for (fd = 0; fd < anfdmax; ++fd) |
782 | if (anfds [fd].events) |
920 | if (anfds [fd].events) |
783 | { |
921 | { |
784 | anfds [fd].events = 0; |
922 | anfds [fd].events = 0; |
|
|
923 | anfds [fd].emask = 0; |
785 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
786 | } |
925 | } |
787 | } |
926 | } |
788 | |
927 | |
789 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
790 | |
929 | |
… | |
… | |
802 | */ |
941 | */ |
803 | #if EV_USE_4HEAP |
942 | #if EV_USE_4HEAP |
804 | |
943 | |
805 | #define DHEAP 4 |
944 | #define DHEAP 4 |
806 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
945 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
807 | |
946 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
808 | /* towards the root */ |
947 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
809 | void inline_speed |
|
|
810 | upheap (ANHE *heap, int k) |
|
|
811 | { |
|
|
812 | ANHE he = heap [k]; |
|
|
813 | |
|
|
814 | for (;;) |
|
|
815 | { |
|
|
816 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
817 | |
|
|
818 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
819 | break; |
|
|
820 | |
|
|
821 | heap [k] = heap [p]; |
|
|
822 | ev_active (ANHE_w (heap [k])) = k; |
|
|
823 | k = p; |
|
|
824 | } |
|
|
825 | |
|
|
826 | ev_active (ANHE_w (he)) = k; |
|
|
827 | heap [k] = he; |
|
|
828 | } |
|
|
829 | |
948 | |
830 | /* away from the root */ |
949 | /* away from the root */ |
831 | void inline_speed |
950 | inline_speed void |
832 | downheap (ANHE *heap, int N, int k) |
951 | downheap (ANHE *heap, int N, int k) |
833 | { |
952 | { |
834 | ANHE he = heap [k]; |
953 | ANHE he = heap [k]; |
835 | ANHE *E = heap + N + HEAP0; |
954 | ANHE *E = heap + N + HEAP0; |
836 | |
955 | |
837 | for (;;) |
956 | for (;;) |
838 | { |
957 | { |
839 | ev_tstamp minat; |
958 | ev_tstamp minat; |
840 | ANHE *minpos; |
959 | ANHE *minpos; |
841 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
960 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
842 | |
961 | |
843 | // find minimum child |
962 | /* find minimum child */ |
844 | if (expect_true (pos + DHEAP - 1 < E)) |
963 | if (expect_true (pos + DHEAP - 1 < E)) |
845 | { |
964 | { |
846 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
965 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
847 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
966 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
848 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
967 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
849 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
968 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
850 | } |
969 | } |
851 | else if (pos < E) |
970 | else if (pos < E) |
852 | { |
971 | { |
853 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
972 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
854 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
973 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
… | |
… | |
859 | break; |
978 | break; |
860 | |
979 | |
861 | if (ANHE_at (he) <= minat) |
980 | if (ANHE_at (he) <= minat) |
862 | break; |
981 | break; |
863 | |
982 | |
|
|
983 | heap [k] = *minpos; |
864 | ev_active (ANHE_w (*minpos)) = k; |
984 | ev_active (ANHE_w (*minpos)) = k; |
865 | heap [k] = *minpos; |
|
|
866 | |
985 | |
867 | k = minpos - heap; |
986 | k = minpos - heap; |
868 | } |
987 | } |
869 | |
988 | |
|
|
989 | heap [k] = he; |
870 | ev_active (ANHE_w (he)) = k; |
990 | ev_active (ANHE_w (he)) = k; |
871 | heap [k] = he; |
|
|
872 | } |
991 | } |
873 | |
992 | |
874 | #else // 4HEAP |
993 | #else /* 4HEAP */ |
875 | |
994 | |
876 | #define HEAP0 1 |
995 | #define HEAP0 1 |
|
|
996 | #define HPARENT(k) ((k) >> 1) |
|
|
997 | #define UPHEAP_DONE(p,k) (!(p)) |
877 | |
998 | |
878 | /* towards the root */ |
999 | /* away from the root */ |
879 | void inline_speed |
1000 | inline_speed void |
880 | upheap (ANHE *heap, int k) |
1001 | downheap (ANHE *heap, int N, int k) |
881 | { |
1002 | { |
882 | ANHE he = heap [k]; |
1003 | ANHE he = heap [k]; |
883 | |
1004 | |
884 | for (;;) |
1005 | for (;;) |
885 | { |
1006 | { |
886 | int p = k >> 1; |
1007 | int c = k << 1; |
887 | |
1008 | |
888 | /* maybe we could use a dummy element at heap [0]? */ |
1009 | if (c > N + HEAP0 - 1) |
889 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
890 | break; |
1010 | break; |
891 | |
1011 | |
892 | heap [k] = heap [p]; |
|
|
893 | ev_active (ANHE_w (heap [k])) = k; |
|
|
894 | k = p; |
|
|
895 | } |
|
|
896 | |
|
|
897 | heap [k] = he; |
|
|
898 | ev_active (ANHE_w (heap [k])) = k; |
|
|
899 | } |
|
|
900 | |
|
|
901 | /* away from the root */ |
|
|
902 | void inline_speed |
|
|
903 | downheap (ANHE *heap, int N, int k) |
|
|
904 | { |
|
|
905 | ANHE he = heap [k]; |
|
|
906 | |
|
|
907 | for (;;) |
|
|
908 | { |
|
|
909 | int c = k << 1; |
|
|
910 | |
|
|
911 | if (c > N) |
|
|
912 | break; |
|
|
913 | |
|
|
914 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1012 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
915 | ? 1 : 0; |
1013 | ? 1 : 0; |
916 | |
1014 | |
917 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
1015 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
918 | break; |
1016 | break; |
919 | |
1017 | |
… | |
… | |
926 | heap [k] = he; |
1024 | heap [k] = he; |
927 | ev_active (ANHE_w (he)) = k; |
1025 | ev_active (ANHE_w (he)) = k; |
928 | } |
1026 | } |
929 | #endif |
1027 | #endif |
930 | |
1028 | |
931 | void inline_size |
1029 | /* towards the root */ |
|
|
1030 | inline_speed void |
|
|
1031 | upheap (ANHE *heap, int k) |
|
|
1032 | { |
|
|
1033 | ANHE he = heap [k]; |
|
|
1034 | |
|
|
1035 | for (;;) |
|
|
1036 | { |
|
|
1037 | int p = HPARENT (k); |
|
|
1038 | |
|
|
1039 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1040 | break; |
|
|
1041 | |
|
|
1042 | heap [k] = heap [p]; |
|
|
1043 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1044 | k = p; |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | heap [k] = he; |
|
|
1048 | ev_active (ANHE_w (he)) = k; |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | /* move an element suitably so it is in a correct place */ |
|
|
1052 | inline_size void |
932 | adjustheap (ANHE *heap, int N, int k) |
1053 | adjustheap (ANHE *heap, int N, int k) |
933 | { |
1054 | { |
|
|
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
934 | upheap (heap, k); |
1056 | upheap (heap, k); |
|
|
1057 | else |
935 | downheap (heap, N, k); |
1058 | downheap (heap, N, k); |
|
|
1059 | } |
|
|
1060 | |
|
|
1061 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1062 | inline_size void |
|
|
1063 | reheap (ANHE *heap, int N) |
|
|
1064 | { |
|
|
1065 | int i; |
|
|
1066 | |
|
|
1067 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1068 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1069 | for (i = 0; i < N; ++i) |
|
|
1070 | upheap (heap, i + HEAP0); |
936 | } |
1071 | } |
937 | |
1072 | |
938 | /*****************************************************************************/ |
1073 | /*****************************************************************************/ |
939 | |
1074 | |
|
|
1075 | /* associate signal watchers to a signal signal */ |
940 | typedef struct |
1076 | typedef struct |
941 | { |
1077 | { |
942 | WL head; |
1078 | WL head; |
943 | EV_ATOMIC_T gotsig; |
1079 | EV_ATOMIC_T gotsig; |
944 | } ANSIG; |
1080 | } ANSIG; |
… | |
… | |
946 | static ANSIG *signals; |
1082 | static ANSIG *signals; |
947 | static int signalmax; |
1083 | static int signalmax; |
948 | |
1084 | |
949 | static EV_ATOMIC_T gotsig; |
1085 | static EV_ATOMIC_T gotsig; |
950 | |
1086 | |
951 | void inline_size |
|
|
952 | signals_init (ANSIG *base, int count) |
|
|
953 | { |
|
|
954 | while (count--) |
|
|
955 | { |
|
|
956 | base->head = 0; |
|
|
957 | base->gotsig = 0; |
|
|
958 | |
|
|
959 | ++base; |
|
|
960 | } |
|
|
961 | } |
|
|
962 | |
|
|
963 | /*****************************************************************************/ |
1087 | /*****************************************************************************/ |
964 | |
1088 | |
965 | void inline_speed |
1089 | /* used to prepare libev internal fd's */ |
|
|
1090 | /* this is not fork-safe */ |
|
|
1091 | inline_speed void |
966 | fd_intern (int fd) |
1092 | fd_intern (int fd) |
967 | { |
1093 | { |
968 | #ifdef _WIN32 |
1094 | #ifdef _WIN32 |
969 | int arg = 1; |
1095 | unsigned long arg = 1; |
970 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
971 | #else |
1097 | #else |
972 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
973 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
974 | #endif |
1100 | #endif |
975 | } |
1101 | } |
976 | |
1102 | |
977 | static void noinline |
1103 | static void noinline |
978 | evpipe_init (EV_P) |
1104 | evpipe_init (EV_P) |
979 | { |
1105 | { |
980 | if (!ev_is_active (&pipeev)) |
1106 | if (!ev_is_active (&pipe_w)) |
981 | { |
1107 | { |
982 | #if EV_USE_EVENTFD |
1108 | #if EV_USE_EVENTFD |
983 | if ((evfd = eventfd (0, 0)) >= 0) |
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
984 | { |
1110 | { |
985 | evpipe [0] = -1; |
1111 | evpipe [0] = -1; |
986 | fd_intern (evfd); |
1112 | fd_intern (evfd); |
987 | ev_io_set (&pipeev, evfd, EV_READ); |
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
988 | } |
1114 | } |
989 | else |
1115 | else |
990 | #endif |
1116 | #endif |
991 | { |
1117 | { |
992 | while (pipe (evpipe)) |
1118 | while (pipe (evpipe)) |
993 | syserr ("(libev) error creating signal/async pipe"); |
1119 | ev_syserr ("(libev) error creating signal/async pipe"); |
994 | |
1120 | |
995 | fd_intern (evpipe [0]); |
1121 | fd_intern (evpipe [0]); |
996 | fd_intern (evpipe [1]); |
1122 | fd_intern (evpipe [1]); |
997 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1123 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
998 | } |
1124 | } |
999 | |
1125 | |
1000 | ev_io_start (EV_A_ &pipeev); |
1126 | ev_io_start (EV_A_ &pipe_w); |
1001 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1127 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1002 | } |
1128 | } |
1003 | } |
1129 | } |
1004 | |
1130 | |
1005 | void inline_size |
1131 | inline_size void |
1006 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1132 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1007 | { |
1133 | { |
1008 | if (!*flag) |
1134 | if (!*flag) |
1009 | { |
1135 | { |
1010 | int old_errno = errno; /* save errno because write might clobber it */ |
1136 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1023 | |
1149 | |
1024 | errno = old_errno; |
1150 | errno = old_errno; |
1025 | } |
1151 | } |
1026 | } |
1152 | } |
1027 | |
1153 | |
|
|
1154 | /* called whenever the libev signal pipe */ |
|
|
1155 | /* got some events (signal, async) */ |
1028 | static void |
1156 | static void |
1029 | pipecb (EV_P_ ev_io *iow, int revents) |
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
1030 | { |
1158 | { |
1031 | #if EV_USE_EVENTFD |
1159 | #if EV_USE_EVENTFD |
1032 | if (evfd >= 0) |
1160 | if (evfd >= 0) |
… | |
… | |
1088 | ev_feed_signal_event (EV_P_ int signum) |
1216 | ev_feed_signal_event (EV_P_ int signum) |
1089 | { |
1217 | { |
1090 | WL w; |
1218 | WL w; |
1091 | |
1219 | |
1092 | #if EV_MULTIPLICITY |
1220 | #if EV_MULTIPLICITY |
1093 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1221 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1094 | #endif |
1222 | #endif |
1095 | |
1223 | |
1096 | --signum; |
1224 | --signum; |
1097 | |
1225 | |
1098 | if (signum < 0 || signum >= signalmax) |
1226 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1114 | |
1242 | |
1115 | #ifndef WIFCONTINUED |
1243 | #ifndef WIFCONTINUED |
1116 | # define WIFCONTINUED(status) 0 |
1244 | # define WIFCONTINUED(status) 0 |
1117 | #endif |
1245 | #endif |
1118 | |
1246 | |
1119 | void inline_speed |
1247 | /* handle a single child status event */ |
|
|
1248 | inline_speed void |
1120 | child_reap (EV_P_ int chain, int pid, int status) |
1249 | child_reap (EV_P_ int chain, int pid, int status) |
1121 | { |
1250 | { |
1122 | ev_child *w; |
1251 | ev_child *w; |
1123 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1252 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1124 | |
1253 | |
… | |
… | |
1137 | |
1266 | |
1138 | #ifndef WCONTINUED |
1267 | #ifndef WCONTINUED |
1139 | # define WCONTINUED 0 |
1268 | # define WCONTINUED 0 |
1140 | #endif |
1269 | #endif |
1141 | |
1270 | |
|
|
1271 | /* called on sigchld etc., calls waitpid */ |
1142 | static void |
1272 | static void |
1143 | childcb (EV_P_ ev_signal *sw, int revents) |
1273 | childcb (EV_P_ ev_signal *sw, int revents) |
1144 | { |
1274 | { |
1145 | int pid, status; |
1275 | int pid, status; |
1146 | |
1276 | |
… | |
… | |
1227 | /* kqueue is borked on everything but netbsd apparently */ |
1357 | /* kqueue is borked on everything but netbsd apparently */ |
1228 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1358 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1229 | flags &= ~EVBACKEND_KQUEUE; |
1359 | flags &= ~EVBACKEND_KQUEUE; |
1230 | #endif |
1360 | #endif |
1231 | #ifdef __APPLE__ |
1361 | #ifdef __APPLE__ |
1232 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1362 | /* only select works correctly on that "unix-certified" platform */ |
1233 | flags &= ~EVBACKEND_POLL; |
1363 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1364 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1234 | #endif |
1365 | #endif |
1235 | |
1366 | |
1236 | return flags; |
1367 | return flags; |
1237 | } |
1368 | } |
1238 | |
1369 | |
… | |
… | |
1252 | ev_backend (EV_P) |
1383 | ev_backend (EV_P) |
1253 | { |
1384 | { |
1254 | return backend; |
1385 | return backend; |
1255 | } |
1386 | } |
1256 | |
1387 | |
|
|
1388 | #if EV_MINIMAL < 2 |
1257 | unsigned int |
1389 | unsigned int |
1258 | ev_loop_count (EV_P) |
1390 | ev_loop_count (EV_P) |
1259 | { |
1391 | { |
1260 | return loop_count; |
1392 | return loop_count; |
1261 | } |
1393 | } |
1262 | |
1394 | |
|
|
1395 | unsigned int |
|
|
1396 | ev_loop_depth (EV_P) |
|
|
1397 | { |
|
|
1398 | return loop_depth; |
|
|
1399 | } |
|
|
1400 | |
1263 | void |
1401 | void |
1264 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1402 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1265 | { |
1403 | { |
1266 | io_blocktime = interval; |
1404 | io_blocktime = interval; |
1267 | } |
1405 | } |
… | |
… | |
1270 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1408 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1271 | { |
1409 | { |
1272 | timeout_blocktime = interval; |
1410 | timeout_blocktime = interval; |
1273 | } |
1411 | } |
1274 | |
1412 | |
|
|
1413 | void |
|
|
1414 | ev_set_userdata (EV_P_ void *data) |
|
|
1415 | { |
|
|
1416 | userdata = data; |
|
|
1417 | } |
|
|
1418 | |
|
|
1419 | void * |
|
|
1420 | ev_userdata (EV_P) |
|
|
1421 | { |
|
|
1422 | return userdata; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1426 | { |
|
|
1427 | invoke_cb = invoke_pending_cb; |
|
|
1428 | } |
|
|
1429 | |
|
|
1430 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1431 | { |
|
|
1432 | release_cb = release; |
|
|
1433 | acquire_cb = acquire; |
|
|
1434 | } |
|
|
1435 | #endif |
|
|
1436 | |
|
|
1437 | /* initialise a loop structure, must be zero-initialised */ |
1275 | static void noinline |
1438 | static void noinline |
1276 | loop_init (EV_P_ unsigned int flags) |
1439 | loop_init (EV_P_ unsigned int flags) |
1277 | { |
1440 | { |
1278 | if (!backend) |
1441 | if (!backend) |
1279 | { |
1442 | { |
|
|
1443 | #if EV_USE_REALTIME |
|
|
1444 | if (!have_realtime) |
|
|
1445 | { |
|
|
1446 | struct timespec ts; |
|
|
1447 | |
|
|
1448 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1449 | have_realtime = 1; |
|
|
1450 | } |
|
|
1451 | #endif |
|
|
1452 | |
1280 | #if EV_USE_MONOTONIC |
1453 | #if EV_USE_MONOTONIC |
|
|
1454 | if (!have_monotonic) |
1281 | { |
1455 | { |
1282 | struct timespec ts; |
1456 | struct timespec ts; |
|
|
1457 | |
1283 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1284 | have_monotonic = 1; |
1459 | have_monotonic = 1; |
1285 | } |
1460 | } |
1286 | #endif |
1461 | #endif |
1287 | |
1462 | |
1288 | ev_rt_now = ev_time (); |
1463 | ev_rt_now = ev_time (); |
1289 | mn_now = get_clock (); |
1464 | mn_now = get_clock (); |
1290 | now_floor = mn_now; |
1465 | now_floor = mn_now; |
1291 | rtmn_diff = ev_rt_now - mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1467 | #if EV_MINIMAL < 2 |
|
|
1468 | invoke_cb = ev_invoke_pending; |
|
|
1469 | #endif |
1292 | |
1470 | |
1293 | io_blocktime = 0.; |
1471 | io_blocktime = 0.; |
1294 | timeout_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1295 | backend = 0; |
1473 | backend = 0; |
1296 | backend_fd = -1; |
1474 | backend_fd = -1; |
… | |
… | |
1327 | #endif |
1505 | #endif |
1328 | #if EV_USE_SELECT |
1506 | #if EV_USE_SELECT |
1329 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1507 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1330 | #endif |
1508 | #endif |
1331 | |
1509 | |
|
|
1510 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1511 | |
1332 | ev_init (&pipeev, pipecb); |
1512 | ev_init (&pipe_w, pipecb); |
1333 | ev_set_priority (&pipeev, EV_MAXPRI); |
1513 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1334 | } |
1514 | } |
1335 | } |
1515 | } |
1336 | |
1516 | |
|
|
1517 | /* free up a loop structure */ |
1337 | static void noinline |
1518 | static void noinline |
1338 | loop_destroy (EV_P) |
1519 | loop_destroy (EV_P) |
1339 | { |
1520 | { |
1340 | int i; |
1521 | int i; |
1341 | |
1522 | |
1342 | if (ev_is_active (&pipeev)) |
1523 | if (ev_is_active (&pipe_w)) |
1343 | { |
1524 | { |
1344 | ev_ref (EV_A); /* signal watcher */ |
1525 | ev_ref (EV_A); /* signal watcher */ |
1345 | ev_io_stop (EV_A_ &pipeev); |
1526 | ev_io_stop (EV_A_ &pipe_w); |
1346 | |
1527 | |
1347 | #if EV_USE_EVENTFD |
1528 | #if EV_USE_EVENTFD |
1348 | if (evfd >= 0) |
1529 | if (evfd >= 0) |
1349 | close (evfd); |
1530 | close (evfd); |
1350 | #endif |
1531 | #endif |
… | |
… | |
1389 | } |
1570 | } |
1390 | |
1571 | |
1391 | ev_free (anfds); anfdmax = 0; |
1572 | ev_free (anfds); anfdmax = 0; |
1392 | |
1573 | |
1393 | /* have to use the microsoft-never-gets-it-right macro */ |
1574 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1575 | array_free (rfeed, EMPTY); |
1394 | array_free (fdchange, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1395 | array_free (timer, EMPTY); |
1577 | array_free (timer, EMPTY); |
1396 | #if EV_PERIODIC_ENABLE |
1578 | #if EV_PERIODIC_ENABLE |
1397 | array_free (periodic, EMPTY); |
1579 | array_free (periodic, EMPTY); |
1398 | #endif |
1580 | #endif |
… | |
… | |
1407 | |
1589 | |
1408 | backend = 0; |
1590 | backend = 0; |
1409 | } |
1591 | } |
1410 | |
1592 | |
1411 | #if EV_USE_INOTIFY |
1593 | #if EV_USE_INOTIFY |
1412 | void inline_size infy_fork (EV_P); |
1594 | inline_size void infy_fork (EV_P); |
1413 | #endif |
1595 | #endif |
1414 | |
1596 | |
1415 | void inline_size |
1597 | inline_size void |
1416 | loop_fork (EV_P) |
1598 | loop_fork (EV_P) |
1417 | { |
1599 | { |
1418 | #if EV_USE_PORT |
1600 | #if EV_USE_PORT |
1419 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1601 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1420 | #endif |
1602 | #endif |
… | |
… | |
1426 | #endif |
1608 | #endif |
1427 | #if EV_USE_INOTIFY |
1609 | #if EV_USE_INOTIFY |
1428 | infy_fork (EV_A); |
1610 | infy_fork (EV_A); |
1429 | #endif |
1611 | #endif |
1430 | |
1612 | |
1431 | if (ev_is_active (&pipeev)) |
1613 | if (ev_is_active (&pipe_w)) |
1432 | { |
1614 | { |
1433 | /* this "locks" the handlers against writing to the pipe */ |
1615 | /* this "locks" the handlers against writing to the pipe */ |
1434 | /* while we modify the fd vars */ |
1616 | /* while we modify the fd vars */ |
1435 | gotsig = 1; |
1617 | gotsig = 1; |
1436 | #if EV_ASYNC_ENABLE |
1618 | #if EV_ASYNC_ENABLE |
1437 | gotasync = 1; |
1619 | gotasync = 1; |
1438 | #endif |
1620 | #endif |
1439 | |
1621 | |
1440 | ev_ref (EV_A); |
1622 | ev_ref (EV_A); |
1441 | ev_io_stop (EV_A_ &pipeev); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
1442 | |
1624 | |
1443 | #if EV_USE_EVENTFD |
1625 | #if EV_USE_EVENTFD |
1444 | if (evfd >= 0) |
1626 | if (evfd >= 0) |
1445 | close (evfd); |
1627 | close (evfd); |
1446 | #endif |
1628 | #endif |
… | |
… | |
1451 | close (evpipe [1]); |
1633 | close (evpipe [1]); |
1452 | } |
1634 | } |
1453 | |
1635 | |
1454 | evpipe_init (EV_A); |
1636 | evpipe_init (EV_A); |
1455 | /* now iterate over everything, in case we missed something */ |
1637 | /* now iterate over everything, in case we missed something */ |
1456 | pipecb (EV_A_ &pipeev, EV_READ); |
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1457 | } |
1639 | } |
1458 | |
1640 | |
1459 | postfork = 0; |
1641 | postfork = 0; |
1460 | } |
1642 | } |
1461 | |
1643 | |
1462 | #if EV_MULTIPLICITY |
1644 | #if EV_MULTIPLICITY |
|
|
1645 | |
1463 | struct ev_loop * |
1646 | struct ev_loop * |
1464 | ev_loop_new (unsigned int flags) |
1647 | ev_loop_new (unsigned int flags) |
1465 | { |
1648 | { |
1466 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1649 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1467 | |
1650 | |
… | |
… | |
1484 | |
1667 | |
1485 | void |
1668 | void |
1486 | ev_loop_fork (EV_P) |
1669 | ev_loop_fork (EV_P) |
1487 | { |
1670 | { |
1488 | postfork = 1; /* must be in line with ev_default_fork */ |
1671 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1672 | } |
|
|
1673 | #endif /* multiplicity */ |
|
|
1674 | |
|
|
1675 | #if EV_VERIFY |
|
|
1676 | static void noinline |
|
|
1677 | verify_watcher (EV_P_ W w) |
|
|
1678 | { |
|
|
1679 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1680 | |
|
|
1681 | if (w->pending) |
|
|
1682 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1683 | } |
|
|
1684 | |
|
|
1685 | static void noinline |
|
|
1686 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1687 | { |
|
|
1688 | int i; |
|
|
1689 | |
|
|
1690 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1691 | { |
|
|
1692 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1693 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1694 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1695 | |
|
|
1696 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1697 | } |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | static void noinline |
|
|
1701 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1702 | { |
|
|
1703 | while (cnt--) |
|
|
1704 | { |
|
|
1705 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1706 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1707 | } |
|
|
1708 | } |
|
|
1709 | #endif |
|
|
1710 | |
|
|
1711 | #if EV_MINIMAL < 2 |
|
|
1712 | void |
|
|
1713 | ev_loop_verify (EV_P) |
|
|
1714 | { |
|
|
1715 | #if EV_VERIFY |
|
|
1716 | int i; |
|
|
1717 | WL w; |
|
|
1718 | |
|
|
1719 | assert (activecnt >= -1); |
|
|
1720 | |
|
|
1721 | assert (fdchangemax >= fdchangecnt); |
|
|
1722 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1723 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1724 | |
|
|
1725 | assert (anfdmax >= 0); |
|
|
1726 | for (i = 0; i < anfdmax; ++i) |
|
|
1727 | for (w = anfds [i].head; w; w = w->next) |
|
|
1728 | { |
|
|
1729 | verify_watcher (EV_A_ (W)w); |
|
|
1730 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1731 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | assert (timermax >= timercnt); |
|
|
1735 | verify_heap (EV_A_ timers, timercnt); |
|
|
1736 | |
|
|
1737 | #if EV_PERIODIC_ENABLE |
|
|
1738 | assert (periodicmax >= periodiccnt); |
|
|
1739 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1740 | #endif |
|
|
1741 | |
|
|
1742 | for (i = NUMPRI; i--; ) |
|
|
1743 | { |
|
|
1744 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1745 | #if EV_IDLE_ENABLE |
|
|
1746 | assert (idleall >= 0); |
|
|
1747 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1748 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1749 | #endif |
|
|
1750 | } |
|
|
1751 | |
|
|
1752 | #if EV_FORK_ENABLE |
|
|
1753 | assert (forkmax >= forkcnt); |
|
|
1754 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1755 | #endif |
|
|
1756 | |
|
|
1757 | #if EV_ASYNC_ENABLE |
|
|
1758 | assert (asyncmax >= asynccnt); |
|
|
1759 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1760 | #endif |
|
|
1761 | |
|
|
1762 | assert (preparemax >= preparecnt); |
|
|
1763 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1764 | |
|
|
1765 | assert (checkmax >= checkcnt); |
|
|
1766 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1767 | |
|
|
1768 | # if 0 |
|
|
1769 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1770 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
|
|
1771 | # endif |
|
|
1772 | #endif |
1489 | } |
1773 | } |
1490 | #endif |
1774 | #endif |
1491 | |
1775 | |
1492 | #if EV_MULTIPLICITY |
1776 | #if EV_MULTIPLICITY |
1493 | struct ev_loop * |
1777 | struct ev_loop * |
… | |
… | |
1528 | { |
1812 | { |
1529 | #if EV_MULTIPLICITY |
1813 | #if EV_MULTIPLICITY |
1530 | struct ev_loop *loop = ev_default_loop_ptr; |
1814 | struct ev_loop *loop = ev_default_loop_ptr; |
1531 | #endif |
1815 | #endif |
1532 | |
1816 | |
|
|
1817 | ev_default_loop_ptr = 0; |
|
|
1818 | |
1533 | #ifndef _WIN32 |
1819 | #ifndef _WIN32 |
1534 | ev_ref (EV_A); /* child watcher */ |
1820 | ev_ref (EV_A); /* child watcher */ |
1535 | ev_signal_stop (EV_A_ &childev); |
1821 | ev_signal_stop (EV_A_ &childev); |
1536 | #endif |
1822 | #endif |
1537 | |
1823 | |
… | |
… | |
1543 | { |
1829 | { |
1544 | #if EV_MULTIPLICITY |
1830 | #if EV_MULTIPLICITY |
1545 | struct ev_loop *loop = ev_default_loop_ptr; |
1831 | struct ev_loop *loop = ev_default_loop_ptr; |
1546 | #endif |
1832 | #endif |
1547 | |
1833 | |
1548 | if (backend) |
|
|
1549 | postfork = 1; /* must be in line with ev_loop_fork */ |
1834 | postfork = 1; /* must be in line with ev_loop_fork */ |
1550 | } |
1835 | } |
1551 | |
1836 | |
1552 | /*****************************************************************************/ |
1837 | /*****************************************************************************/ |
1553 | |
1838 | |
1554 | void |
1839 | void |
1555 | ev_invoke (EV_P_ void *w, int revents) |
1840 | ev_invoke (EV_P_ void *w, int revents) |
1556 | { |
1841 | { |
1557 | EV_CB_INVOKE ((W)w, revents); |
1842 | EV_CB_INVOKE ((W)w, revents); |
1558 | } |
1843 | } |
1559 | |
1844 | |
1560 | void inline_speed |
1845 | unsigned int |
1561 | call_pending (EV_P) |
1846 | ev_pending_count (EV_P) |
|
|
1847 | { |
|
|
1848 | int pri; |
|
|
1849 | unsigned int count = 0; |
|
|
1850 | |
|
|
1851 | for (pri = NUMPRI; pri--; ) |
|
|
1852 | count += pendingcnt [pri]; |
|
|
1853 | |
|
|
1854 | return count; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | void noinline |
|
|
1858 | ev_invoke_pending (EV_P) |
1562 | { |
1859 | { |
1563 | int pri; |
1860 | int pri; |
1564 | |
1861 | |
1565 | for (pri = NUMPRI; pri--; ) |
1862 | for (pri = NUMPRI; pri--; ) |
1566 | while (pendingcnt [pri]) |
1863 | while (pendingcnt [pri]) |
1567 | { |
1864 | { |
1568 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1865 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1569 | |
1866 | |
1570 | if (expect_true (p->w)) |
|
|
1571 | { |
|
|
1572 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1867 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1868 | /* ^ this is no longer true, as pending_w could be here */ |
1573 | |
1869 | |
1574 | p->w->pending = 0; |
1870 | p->w->pending = 0; |
1575 | EV_CB_INVOKE (p->w, p->events); |
1871 | EV_CB_INVOKE (p->w, p->events); |
1576 | } |
1872 | EV_FREQUENT_CHECK; |
1577 | } |
1873 | } |
1578 | } |
1874 | } |
1579 | |
1875 | |
1580 | #if EV_IDLE_ENABLE |
1876 | #if EV_IDLE_ENABLE |
1581 | void inline_size |
1877 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1878 | /* only when higher priorities are idle" logic */ |
|
|
1879 | inline_size void |
1582 | idle_reify (EV_P) |
1880 | idle_reify (EV_P) |
1583 | { |
1881 | { |
1584 | if (expect_false (idleall)) |
1882 | if (expect_false (idleall)) |
1585 | { |
1883 | { |
1586 | int pri; |
1884 | int pri; |
… | |
… | |
1598 | } |
1896 | } |
1599 | } |
1897 | } |
1600 | } |
1898 | } |
1601 | #endif |
1899 | #endif |
1602 | |
1900 | |
1603 | void inline_size |
1901 | /* make timers pending */ |
|
|
1902 | inline_size void |
1604 | timers_reify (EV_P) |
1903 | timers_reify (EV_P) |
1605 | { |
1904 | { |
|
|
1905 | EV_FREQUENT_CHECK; |
|
|
1906 | |
1606 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1907 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1607 | { |
1908 | { |
1608 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1909 | do |
1609 | |
|
|
1610 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1611 | |
|
|
1612 | /* first reschedule or stop timer */ |
|
|
1613 | if (w->repeat) |
|
|
1614 | { |
1910 | { |
|
|
1911 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1912 | |
|
|
1913 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1914 | |
|
|
1915 | /* first reschedule or stop timer */ |
|
|
1916 | if (w->repeat) |
|
|
1917 | { |
1615 | ev_at (w) += w->repeat; |
1918 | ev_at (w) += w->repeat; |
1616 | if (ev_at (w) < mn_now) |
1919 | if (ev_at (w) < mn_now) |
1617 | ev_at (w) = mn_now; |
1920 | ev_at (w) = mn_now; |
1618 | |
1921 | |
1619 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1922 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1620 | |
1923 | |
1621 | ANHE_at_set (timers [HEAP0]); |
1924 | ANHE_at_cache (timers [HEAP0]); |
1622 | downheap (timers, timercnt, HEAP0); |
1925 | downheap (timers, timercnt, HEAP0); |
|
|
1926 | } |
|
|
1927 | else |
|
|
1928 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1929 | |
|
|
1930 | EV_FREQUENT_CHECK; |
|
|
1931 | feed_reverse (EV_A_ (W)w); |
1623 | } |
1932 | } |
1624 | else |
1933 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1625 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1626 | |
1934 | |
1627 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1935 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1628 | } |
1936 | } |
1629 | } |
1937 | } |
1630 | |
1938 | |
1631 | #if EV_PERIODIC_ENABLE |
1939 | #if EV_PERIODIC_ENABLE |
1632 | void inline_size |
1940 | /* make periodics pending */ |
|
|
1941 | inline_size void |
1633 | periodics_reify (EV_P) |
1942 | periodics_reify (EV_P) |
1634 | { |
1943 | { |
|
|
1944 | EV_FREQUENT_CHECK; |
|
|
1945 | |
1635 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1946 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1636 | { |
1947 | { |
1637 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1948 | int feed_count = 0; |
1638 | |
1949 | |
1639 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1950 | do |
1640 | |
|
|
1641 | /* first reschedule or stop timer */ |
|
|
1642 | if (w->reschedule_cb) |
|
|
1643 | { |
1951 | { |
|
|
1952 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1953 | |
|
|
1954 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1955 | |
|
|
1956 | /* first reschedule or stop timer */ |
|
|
1957 | if (w->reschedule_cb) |
|
|
1958 | { |
1644 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1959 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1645 | |
1960 | |
1646 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1961 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1647 | |
1962 | |
1648 | ANHE_at_set (periodics [HEAP0]); |
1963 | ANHE_at_cache (periodics [HEAP0]); |
1649 | downheap (periodics, periodiccnt, HEAP0); |
1964 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1965 | } |
|
|
1966 | else if (w->interval) |
|
|
1967 | { |
|
|
1968 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1969 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1970 | /* this might happen because of floating point inexactness */ |
|
|
1971 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1972 | { |
|
|
1973 | ev_at (w) += w->interval; |
|
|
1974 | |
|
|
1975 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1976 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1977 | /* has effectively asked to get triggered more often than possible */ |
|
|
1978 | if (ev_at (w) < ev_rt_now) |
|
|
1979 | ev_at (w) = ev_rt_now; |
|
|
1980 | } |
|
|
1981 | |
|
|
1982 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1983 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1984 | } |
|
|
1985 | else |
|
|
1986 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1987 | |
|
|
1988 | EV_FREQUENT_CHECK; |
|
|
1989 | feed_reverse (EV_A_ (W)w); |
1650 | } |
1990 | } |
1651 | else if (w->interval) |
1991 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1652 | { |
|
|
1653 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1654 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1655 | |
1992 | |
1656 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) >= ev_rt_now)); |
|
|
1657 | |
|
|
1658 | ANHE_at_set (periodics [HEAP0]); |
|
|
1659 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1660 | } |
|
|
1661 | else |
|
|
1662 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1663 | |
|
|
1664 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1993 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1665 | } |
1994 | } |
1666 | } |
1995 | } |
1667 | |
1996 | |
|
|
1997 | /* simply recalculate all periodics */ |
|
|
1998 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1668 | static void noinline |
1999 | static void noinline |
1669 | periodics_reschedule (EV_P) |
2000 | periodics_reschedule (EV_P) |
1670 | { |
2001 | { |
1671 | int i; |
2002 | int i; |
1672 | |
2003 | |
… | |
… | |
1678 | if (w->reschedule_cb) |
2009 | if (w->reschedule_cb) |
1679 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2010 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1680 | else if (w->interval) |
2011 | else if (w->interval) |
1681 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2012 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1682 | |
2013 | |
1683 | ANHE_at_set (periodics [i]); |
2014 | ANHE_at_cache (periodics [i]); |
1684 | } |
2015 | } |
1685 | |
2016 | |
1686 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
2017 | reheap (periodics, periodiccnt); |
1687 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
2018 | } |
|
|
2019 | #endif |
|
|
2020 | |
|
|
2021 | /* adjust all timers by a given offset */ |
|
|
2022 | static void noinline |
|
|
2023 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2024 | { |
|
|
2025 | int i; |
|
|
2026 | |
1688 | for (i = 0; i < periodiccnt; ++i) |
2027 | for (i = 0; i < timercnt; ++i) |
1689 | upheap (periodics, i + HEAP0); |
2028 | { |
|
|
2029 | ANHE *he = timers + i + HEAP0; |
|
|
2030 | ANHE_w (*he)->at += adjust; |
|
|
2031 | ANHE_at_cache (*he); |
|
|
2032 | } |
1690 | } |
2033 | } |
1691 | #endif |
|
|
1692 | |
2034 | |
1693 | void inline_speed |
2035 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2036 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2037 | inline_speed void |
1694 | time_update (EV_P_ ev_tstamp max_block) |
2038 | time_update (EV_P_ ev_tstamp max_block) |
1695 | { |
2039 | { |
1696 | int i; |
|
|
1697 | |
|
|
1698 | #if EV_USE_MONOTONIC |
2040 | #if EV_USE_MONOTONIC |
1699 | if (expect_true (have_monotonic)) |
2041 | if (expect_true (have_monotonic)) |
1700 | { |
2042 | { |
|
|
2043 | int i; |
1701 | ev_tstamp odiff = rtmn_diff; |
2044 | ev_tstamp odiff = rtmn_diff; |
1702 | |
2045 | |
1703 | mn_now = get_clock (); |
2046 | mn_now = get_clock (); |
1704 | |
2047 | |
1705 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2048 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1731 | ev_rt_now = ev_time (); |
2074 | ev_rt_now = ev_time (); |
1732 | mn_now = get_clock (); |
2075 | mn_now = get_clock (); |
1733 | now_floor = mn_now; |
2076 | now_floor = mn_now; |
1734 | } |
2077 | } |
1735 | |
2078 | |
|
|
2079 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2080 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1736 | # if EV_PERIODIC_ENABLE |
2081 | # if EV_PERIODIC_ENABLE |
1737 | periodics_reschedule (EV_A); |
2082 | periodics_reschedule (EV_A); |
1738 | # endif |
2083 | # endif |
1739 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1740 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1741 | } |
2084 | } |
1742 | else |
2085 | else |
1743 | #endif |
2086 | #endif |
1744 | { |
2087 | { |
1745 | ev_rt_now = ev_time (); |
2088 | ev_rt_now = ev_time (); |
1746 | |
2089 | |
1747 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2090 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1748 | { |
2091 | { |
|
|
2092 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2093 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1749 | #if EV_PERIODIC_ENABLE |
2094 | #if EV_PERIODIC_ENABLE |
1750 | periodics_reschedule (EV_A); |
2095 | periodics_reschedule (EV_A); |
1751 | #endif |
2096 | #endif |
1752 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1753 | for (i = 0; i < timercnt; ++i) |
|
|
1754 | { |
|
|
1755 | ANHE *he = timers + i + HEAP0; |
|
|
1756 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1757 | ANHE_at_set (*he); |
|
|
1758 | } |
|
|
1759 | } |
2097 | } |
1760 | |
2098 | |
1761 | mn_now = ev_rt_now; |
2099 | mn_now = ev_rt_now; |
1762 | } |
2100 | } |
1763 | } |
2101 | } |
1764 | |
2102 | |
1765 | void |
2103 | void |
1766 | ev_ref (EV_P) |
|
|
1767 | { |
|
|
1768 | ++activecnt; |
|
|
1769 | } |
|
|
1770 | |
|
|
1771 | void |
|
|
1772 | ev_unref (EV_P) |
|
|
1773 | { |
|
|
1774 | --activecnt; |
|
|
1775 | } |
|
|
1776 | |
|
|
1777 | static int loop_done; |
|
|
1778 | |
|
|
1779 | void |
|
|
1780 | ev_loop (EV_P_ int flags) |
2104 | ev_loop (EV_P_ int flags) |
1781 | { |
2105 | { |
|
|
2106 | #if EV_MINIMAL < 2 |
|
|
2107 | ++loop_depth; |
|
|
2108 | #endif |
|
|
2109 | |
|
|
2110 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2111 | |
1782 | loop_done = EVUNLOOP_CANCEL; |
2112 | loop_done = EVUNLOOP_CANCEL; |
1783 | |
2113 | |
1784 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2114 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1785 | |
2115 | |
1786 | do |
2116 | do |
1787 | { |
2117 | { |
|
|
2118 | #if EV_VERIFY >= 2 |
|
|
2119 | ev_loop_verify (EV_A); |
|
|
2120 | #endif |
|
|
2121 | |
1788 | #ifndef _WIN32 |
2122 | #ifndef _WIN32 |
1789 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2123 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1790 | if (expect_false (getpid () != curpid)) |
2124 | if (expect_false (getpid () != curpid)) |
1791 | { |
2125 | { |
1792 | curpid = getpid (); |
2126 | curpid = getpid (); |
… | |
… | |
1798 | /* we might have forked, so queue fork handlers */ |
2132 | /* we might have forked, so queue fork handlers */ |
1799 | if (expect_false (postfork)) |
2133 | if (expect_false (postfork)) |
1800 | if (forkcnt) |
2134 | if (forkcnt) |
1801 | { |
2135 | { |
1802 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2136 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1803 | call_pending (EV_A); |
2137 | EV_INVOKE_PENDING; |
1804 | } |
2138 | } |
1805 | #endif |
2139 | #endif |
1806 | |
2140 | |
1807 | /* queue prepare watchers (and execute them) */ |
2141 | /* queue prepare watchers (and execute them) */ |
1808 | if (expect_false (preparecnt)) |
2142 | if (expect_false (preparecnt)) |
1809 | { |
2143 | { |
1810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2144 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1811 | call_pending (EV_A); |
2145 | EV_INVOKE_PENDING; |
1812 | } |
2146 | } |
1813 | |
2147 | |
1814 | if (expect_false (!activecnt)) |
2148 | if (expect_false (loop_done)) |
1815 | break; |
2149 | break; |
1816 | |
2150 | |
1817 | /* we might have forked, so reify kernel state if necessary */ |
2151 | /* we might have forked, so reify kernel state if necessary */ |
1818 | if (expect_false (postfork)) |
2152 | if (expect_false (postfork)) |
1819 | loop_fork (EV_A); |
2153 | loop_fork (EV_A); |
… | |
… | |
1826 | ev_tstamp waittime = 0.; |
2160 | ev_tstamp waittime = 0.; |
1827 | ev_tstamp sleeptime = 0.; |
2161 | ev_tstamp sleeptime = 0.; |
1828 | |
2162 | |
1829 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2163 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1830 | { |
2164 | { |
|
|
2165 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2166 | ev_tstamp prev_mn_now = mn_now; |
|
|
2167 | |
1831 | /* update time to cancel out callback processing overhead */ |
2168 | /* update time to cancel out callback processing overhead */ |
1832 | time_update (EV_A_ 1e100); |
2169 | time_update (EV_A_ 1e100); |
1833 | |
2170 | |
1834 | waittime = MAX_BLOCKTIME; |
2171 | waittime = MAX_BLOCKTIME; |
1835 | |
2172 | |
… | |
… | |
1845 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2182 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1846 | if (waittime > to) waittime = to; |
2183 | if (waittime > to) waittime = to; |
1847 | } |
2184 | } |
1848 | #endif |
2185 | #endif |
1849 | |
2186 | |
|
|
2187 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1850 | if (expect_false (waittime < timeout_blocktime)) |
2188 | if (expect_false (waittime < timeout_blocktime)) |
1851 | waittime = timeout_blocktime; |
2189 | waittime = timeout_blocktime; |
1852 | |
2190 | |
1853 | sleeptime = waittime - backend_fudge; |
2191 | /* extra check because io_blocktime is commonly 0 */ |
1854 | |
|
|
1855 | if (expect_true (sleeptime > io_blocktime)) |
2192 | if (expect_false (io_blocktime)) |
1856 | sleeptime = io_blocktime; |
|
|
1857 | |
|
|
1858 | if (sleeptime) |
|
|
1859 | { |
2193 | { |
|
|
2194 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2195 | |
|
|
2196 | if (sleeptime > waittime - backend_fudge) |
|
|
2197 | sleeptime = waittime - backend_fudge; |
|
|
2198 | |
|
|
2199 | if (expect_true (sleeptime > 0.)) |
|
|
2200 | { |
1860 | ev_sleep (sleeptime); |
2201 | ev_sleep (sleeptime); |
1861 | waittime -= sleeptime; |
2202 | waittime -= sleeptime; |
|
|
2203 | } |
1862 | } |
2204 | } |
1863 | } |
2205 | } |
1864 | |
2206 | |
|
|
2207 | #if EV_MINIMAL < 2 |
1865 | ++loop_count; |
2208 | ++loop_count; |
|
|
2209 | #endif |
|
|
2210 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1866 | backend_poll (EV_A_ waittime); |
2211 | backend_poll (EV_A_ waittime); |
|
|
2212 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1867 | |
2213 | |
1868 | /* update ev_rt_now, do magic */ |
2214 | /* update ev_rt_now, do magic */ |
1869 | time_update (EV_A_ waittime + sleeptime); |
2215 | time_update (EV_A_ waittime + sleeptime); |
1870 | } |
2216 | } |
1871 | |
2217 | |
… | |
… | |
1882 | |
2228 | |
1883 | /* queue check watchers, to be executed first */ |
2229 | /* queue check watchers, to be executed first */ |
1884 | if (expect_false (checkcnt)) |
2230 | if (expect_false (checkcnt)) |
1885 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2231 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1886 | |
2232 | |
1887 | call_pending (EV_A); |
2233 | EV_INVOKE_PENDING; |
1888 | } |
2234 | } |
1889 | while (expect_true ( |
2235 | while (expect_true ( |
1890 | activecnt |
2236 | activecnt |
1891 | && !loop_done |
2237 | && !loop_done |
1892 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2238 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1893 | )); |
2239 | )); |
1894 | |
2240 | |
1895 | if (loop_done == EVUNLOOP_ONE) |
2241 | if (loop_done == EVUNLOOP_ONE) |
1896 | loop_done = EVUNLOOP_CANCEL; |
2242 | loop_done = EVUNLOOP_CANCEL; |
|
|
2243 | |
|
|
2244 | #if EV_MINIMAL < 2 |
|
|
2245 | --loop_depth; |
|
|
2246 | #endif |
1897 | } |
2247 | } |
1898 | |
2248 | |
1899 | void |
2249 | void |
1900 | ev_unloop (EV_P_ int how) |
2250 | ev_unloop (EV_P_ int how) |
1901 | { |
2251 | { |
1902 | loop_done = how; |
2252 | loop_done = how; |
1903 | } |
2253 | } |
1904 | |
2254 | |
|
|
2255 | void |
|
|
2256 | ev_ref (EV_P) |
|
|
2257 | { |
|
|
2258 | ++activecnt; |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | void |
|
|
2262 | ev_unref (EV_P) |
|
|
2263 | { |
|
|
2264 | --activecnt; |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | void |
|
|
2268 | ev_now_update (EV_P) |
|
|
2269 | { |
|
|
2270 | time_update (EV_A_ 1e100); |
|
|
2271 | } |
|
|
2272 | |
|
|
2273 | void |
|
|
2274 | ev_suspend (EV_P) |
|
|
2275 | { |
|
|
2276 | ev_now_update (EV_A); |
|
|
2277 | } |
|
|
2278 | |
|
|
2279 | void |
|
|
2280 | ev_resume (EV_P) |
|
|
2281 | { |
|
|
2282 | ev_tstamp mn_prev = mn_now; |
|
|
2283 | |
|
|
2284 | ev_now_update (EV_A); |
|
|
2285 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2286 | #if EV_PERIODIC_ENABLE |
|
|
2287 | /* TODO: really do this? */ |
|
|
2288 | periodics_reschedule (EV_A); |
|
|
2289 | #endif |
|
|
2290 | } |
|
|
2291 | |
1905 | /*****************************************************************************/ |
2292 | /*****************************************************************************/ |
|
|
2293 | /* singly-linked list management, used when the expected list length is short */ |
1906 | |
2294 | |
1907 | void inline_size |
2295 | inline_size void |
1908 | wlist_add (WL *head, WL elem) |
2296 | wlist_add (WL *head, WL elem) |
1909 | { |
2297 | { |
1910 | elem->next = *head; |
2298 | elem->next = *head; |
1911 | *head = elem; |
2299 | *head = elem; |
1912 | } |
2300 | } |
1913 | |
2301 | |
1914 | void inline_size |
2302 | inline_size void |
1915 | wlist_del (WL *head, WL elem) |
2303 | wlist_del (WL *head, WL elem) |
1916 | { |
2304 | { |
1917 | while (*head) |
2305 | while (*head) |
1918 | { |
2306 | { |
1919 | if (*head == elem) |
2307 | if (*head == elem) |
… | |
… | |
1924 | |
2312 | |
1925 | head = &(*head)->next; |
2313 | head = &(*head)->next; |
1926 | } |
2314 | } |
1927 | } |
2315 | } |
1928 | |
2316 | |
1929 | void inline_speed |
2317 | /* internal, faster, version of ev_clear_pending */ |
|
|
2318 | inline_speed void |
1930 | clear_pending (EV_P_ W w) |
2319 | clear_pending (EV_P_ W w) |
1931 | { |
2320 | { |
1932 | if (w->pending) |
2321 | if (w->pending) |
1933 | { |
2322 | { |
1934 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2323 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1935 | w->pending = 0; |
2324 | w->pending = 0; |
1936 | } |
2325 | } |
1937 | } |
2326 | } |
1938 | |
2327 | |
1939 | int |
2328 | int |
… | |
… | |
1943 | int pending = w_->pending; |
2332 | int pending = w_->pending; |
1944 | |
2333 | |
1945 | if (expect_true (pending)) |
2334 | if (expect_true (pending)) |
1946 | { |
2335 | { |
1947 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2336 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2337 | p->w = (W)&pending_w; |
1948 | w_->pending = 0; |
2338 | w_->pending = 0; |
1949 | p->w = 0; |
|
|
1950 | return p->events; |
2339 | return p->events; |
1951 | } |
2340 | } |
1952 | else |
2341 | else |
1953 | return 0; |
2342 | return 0; |
1954 | } |
2343 | } |
1955 | |
2344 | |
1956 | void inline_size |
2345 | inline_size void |
1957 | pri_adjust (EV_P_ W w) |
2346 | pri_adjust (EV_P_ W w) |
1958 | { |
2347 | { |
1959 | int pri = w->priority; |
2348 | int pri = ev_priority (w); |
1960 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2349 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1961 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2350 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1962 | w->priority = pri; |
2351 | ev_set_priority (w, pri); |
1963 | } |
2352 | } |
1964 | |
2353 | |
1965 | void inline_speed |
2354 | inline_speed void |
1966 | ev_start (EV_P_ W w, int active) |
2355 | ev_start (EV_P_ W w, int active) |
1967 | { |
2356 | { |
1968 | pri_adjust (EV_A_ w); |
2357 | pri_adjust (EV_A_ w); |
1969 | w->active = active; |
2358 | w->active = active; |
1970 | ev_ref (EV_A); |
2359 | ev_ref (EV_A); |
1971 | } |
2360 | } |
1972 | |
2361 | |
1973 | void inline_size |
2362 | inline_size void |
1974 | ev_stop (EV_P_ W w) |
2363 | ev_stop (EV_P_ W w) |
1975 | { |
2364 | { |
1976 | ev_unref (EV_A); |
2365 | ev_unref (EV_A); |
1977 | w->active = 0; |
2366 | w->active = 0; |
1978 | } |
2367 | } |
… | |
… | |
1985 | int fd = w->fd; |
2374 | int fd = w->fd; |
1986 | |
2375 | |
1987 | if (expect_false (ev_is_active (w))) |
2376 | if (expect_false (ev_is_active (w))) |
1988 | return; |
2377 | return; |
1989 | |
2378 | |
1990 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2379 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2380 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2381 | |
|
|
2382 | EV_FREQUENT_CHECK; |
1991 | |
2383 | |
1992 | ev_start (EV_A_ (W)w, 1); |
2384 | ev_start (EV_A_ (W)w, 1); |
1993 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2385 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1994 | wlist_add (&anfds[fd].head, (WL)w); |
2386 | wlist_add (&anfds[fd].head, (WL)w); |
1995 | |
2387 | |
1996 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2388 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1997 | w->events &= ~EV_IOFDSET; |
2389 | w->events &= ~EV__IOFDSET; |
|
|
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
1998 | } |
2392 | } |
1999 | |
2393 | |
2000 | void noinline |
2394 | void noinline |
2001 | ev_io_stop (EV_P_ ev_io *w) |
2395 | ev_io_stop (EV_P_ ev_io *w) |
2002 | { |
2396 | { |
2003 | clear_pending (EV_A_ (W)w); |
2397 | clear_pending (EV_A_ (W)w); |
2004 | if (expect_false (!ev_is_active (w))) |
2398 | if (expect_false (!ev_is_active (w))) |
2005 | return; |
2399 | return; |
2006 | |
2400 | |
2007 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2401 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2402 | |
|
|
2403 | EV_FREQUENT_CHECK; |
2008 | |
2404 | |
2009 | wlist_del (&anfds[w->fd].head, (WL)w); |
2405 | wlist_del (&anfds[w->fd].head, (WL)w); |
2010 | ev_stop (EV_A_ (W)w); |
2406 | ev_stop (EV_A_ (W)w); |
2011 | |
2407 | |
2012 | fd_change (EV_A_ w->fd, 1); |
2408 | fd_change (EV_A_ w->fd, 1); |
|
|
2409 | |
|
|
2410 | EV_FREQUENT_CHECK; |
2013 | } |
2411 | } |
2014 | |
2412 | |
2015 | void noinline |
2413 | void noinline |
2016 | ev_timer_start (EV_P_ ev_timer *w) |
2414 | ev_timer_start (EV_P_ ev_timer *w) |
2017 | { |
2415 | { |
2018 | if (expect_false (ev_is_active (w))) |
2416 | if (expect_false (ev_is_active (w))) |
2019 | return; |
2417 | return; |
2020 | |
2418 | |
2021 | ev_at (w) += mn_now; |
2419 | ev_at (w) += mn_now; |
2022 | |
2420 | |
2023 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2421 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2024 | |
2422 | |
|
|
2423 | EV_FREQUENT_CHECK; |
|
|
2424 | |
|
|
2425 | ++timercnt; |
2025 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2426 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2026 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2427 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2027 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2428 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2028 | ANHE_at_set (timers [ev_active (w)]); |
2429 | ANHE_at_cache (timers [ev_active (w)]); |
2029 | upheap (timers, ev_active (w)); |
2430 | upheap (timers, ev_active (w)); |
2030 | |
2431 | |
|
|
2432 | EV_FREQUENT_CHECK; |
|
|
2433 | |
2031 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2434 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2032 | } |
2435 | } |
2033 | |
2436 | |
2034 | void noinline |
2437 | void noinline |
2035 | ev_timer_stop (EV_P_ ev_timer *w) |
2438 | ev_timer_stop (EV_P_ ev_timer *w) |
2036 | { |
2439 | { |
2037 | clear_pending (EV_A_ (W)w); |
2440 | clear_pending (EV_A_ (W)w); |
2038 | if (expect_false (!ev_is_active (w))) |
2441 | if (expect_false (!ev_is_active (w))) |
2039 | return; |
2442 | return; |
2040 | |
2443 | |
|
|
2444 | EV_FREQUENT_CHECK; |
|
|
2445 | |
2041 | { |
2446 | { |
2042 | int active = ev_active (w); |
2447 | int active = ev_active (w); |
2043 | |
2448 | |
2044 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2449 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2045 | |
2450 | |
|
|
2451 | --timercnt; |
|
|
2452 | |
2046 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2453 | if (expect_true (active < timercnt + HEAP0)) |
2047 | { |
2454 | { |
2048 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2455 | timers [active] = timers [timercnt + HEAP0]; |
2049 | adjustheap (timers, timercnt, active); |
2456 | adjustheap (timers, timercnt, active); |
2050 | } |
2457 | } |
2051 | |
|
|
2052 | --timercnt; |
|
|
2053 | } |
2458 | } |
|
|
2459 | |
|
|
2460 | EV_FREQUENT_CHECK; |
2054 | |
2461 | |
2055 | ev_at (w) -= mn_now; |
2462 | ev_at (w) -= mn_now; |
2056 | |
2463 | |
2057 | ev_stop (EV_A_ (W)w); |
2464 | ev_stop (EV_A_ (W)w); |
2058 | } |
2465 | } |
2059 | |
2466 | |
2060 | void noinline |
2467 | void noinline |
2061 | ev_timer_again (EV_P_ ev_timer *w) |
2468 | ev_timer_again (EV_P_ ev_timer *w) |
2062 | { |
2469 | { |
|
|
2470 | EV_FREQUENT_CHECK; |
|
|
2471 | |
2063 | if (ev_is_active (w)) |
2472 | if (ev_is_active (w)) |
2064 | { |
2473 | { |
2065 | if (w->repeat) |
2474 | if (w->repeat) |
2066 | { |
2475 | { |
2067 | ev_at (w) = mn_now + w->repeat; |
2476 | ev_at (w) = mn_now + w->repeat; |
2068 | ANHE_at_set (timers [ev_active (w)]); |
2477 | ANHE_at_cache (timers [ev_active (w)]); |
2069 | adjustheap (timers, timercnt, ev_active (w)); |
2478 | adjustheap (timers, timercnt, ev_active (w)); |
2070 | } |
2479 | } |
2071 | else |
2480 | else |
2072 | ev_timer_stop (EV_A_ w); |
2481 | ev_timer_stop (EV_A_ w); |
2073 | } |
2482 | } |
2074 | else if (w->repeat) |
2483 | else if (w->repeat) |
2075 | { |
2484 | { |
2076 | ev_at (w) = w->repeat; |
2485 | ev_at (w) = w->repeat; |
2077 | ev_timer_start (EV_A_ w); |
2486 | ev_timer_start (EV_A_ w); |
2078 | } |
2487 | } |
|
|
2488 | |
|
|
2489 | EV_FREQUENT_CHECK; |
2079 | } |
2490 | } |
2080 | |
2491 | |
2081 | #if EV_PERIODIC_ENABLE |
2492 | #if EV_PERIODIC_ENABLE |
2082 | void noinline |
2493 | void noinline |
2083 | ev_periodic_start (EV_P_ ev_periodic *w) |
2494 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2087 | |
2498 | |
2088 | if (w->reschedule_cb) |
2499 | if (w->reschedule_cb) |
2089 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2500 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2090 | else if (w->interval) |
2501 | else if (w->interval) |
2091 | { |
2502 | { |
2092 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2503 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2093 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2504 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2094 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2505 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2095 | } |
2506 | } |
2096 | else |
2507 | else |
2097 | ev_at (w) = w->offset; |
2508 | ev_at (w) = w->offset; |
2098 | |
2509 | |
|
|
2510 | EV_FREQUENT_CHECK; |
|
|
2511 | |
|
|
2512 | ++periodiccnt; |
2099 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2513 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2100 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2514 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2101 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2515 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2102 | ANHE_at_set (periodics [ev_active (w)]); |
2516 | ANHE_at_cache (periodics [ev_active (w)]); |
2103 | upheap (periodics, ev_active (w)); |
2517 | upheap (periodics, ev_active (w)); |
2104 | |
2518 | |
|
|
2519 | EV_FREQUENT_CHECK; |
|
|
2520 | |
2105 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2521 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2106 | } |
2522 | } |
2107 | |
2523 | |
2108 | void noinline |
2524 | void noinline |
2109 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2525 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2110 | { |
2526 | { |
2111 | clear_pending (EV_A_ (W)w); |
2527 | clear_pending (EV_A_ (W)w); |
2112 | if (expect_false (!ev_is_active (w))) |
2528 | if (expect_false (!ev_is_active (w))) |
2113 | return; |
2529 | return; |
2114 | |
2530 | |
|
|
2531 | EV_FREQUENT_CHECK; |
|
|
2532 | |
2115 | { |
2533 | { |
2116 | int active = ev_active (w); |
2534 | int active = ev_active (w); |
2117 | |
2535 | |
2118 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2536 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2119 | |
2537 | |
|
|
2538 | --periodiccnt; |
|
|
2539 | |
2120 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2540 | if (expect_true (active < periodiccnt + HEAP0)) |
2121 | { |
2541 | { |
2122 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2542 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2123 | adjustheap (periodics, periodiccnt, active); |
2543 | adjustheap (periodics, periodiccnt, active); |
2124 | } |
2544 | } |
2125 | |
|
|
2126 | --periodiccnt; |
|
|
2127 | } |
2545 | } |
|
|
2546 | |
|
|
2547 | EV_FREQUENT_CHECK; |
2128 | |
2548 | |
2129 | ev_stop (EV_A_ (W)w); |
2549 | ev_stop (EV_A_ (W)w); |
2130 | } |
2550 | } |
2131 | |
2551 | |
2132 | void noinline |
2552 | void noinline |
… | |
… | |
2144 | |
2564 | |
2145 | void noinline |
2565 | void noinline |
2146 | ev_signal_start (EV_P_ ev_signal *w) |
2566 | ev_signal_start (EV_P_ ev_signal *w) |
2147 | { |
2567 | { |
2148 | #if EV_MULTIPLICITY |
2568 | #if EV_MULTIPLICITY |
2149 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2569 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2150 | #endif |
2570 | #endif |
2151 | if (expect_false (ev_is_active (w))) |
2571 | if (expect_false (ev_is_active (w))) |
2152 | return; |
2572 | return; |
2153 | |
2573 | |
2154 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2574 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2155 | |
2575 | |
2156 | evpipe_init (EV_A); |
2576 | evpipe_init (EV_A); |
|
|
2577 | |
|
|
2578 | EV_FREQUENT_CHECK; |
2157 | |
2579 | |
2158 | { |
2580 | { |
2159 | #ifndef _WIN32 |
2581 | #ifndef _WIN32 |
2160 | sigset_t full, prev; |
2582 | sigset_t full, prev; |
2161 | sigfillset (&full); |
2583 | sigfillset (&full); |
2162 | sigprocmask (SIG_SETMASK, &full, &prev); |
2584 | sigprocmask (SIG_SETMASK, &full, &prev); |
2163 | #endif |
2585 | #endif |
2164 | |
2586 | |
2165 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2587 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2166 | |
2588 | |
2167 | #ifndef _WIN32 |
2589 | #ifndef _WIN32 |
2168 | sigprocmask (SIG_SETMASK, &prev, 0); |
2590 | sigprocmask (SIG_SETMASK, &prev, 0); |
2169 | #endif |
2591 | #endif |
2170 | } |
2592 | } |
… | |
… | |
2175 | if (!((WL)w)->next) |
2597 | if (!((WL)w)->next) |
2176 | { |
2598 | { |
2177 | #if _WIN32 |
2599 | #if _WIN32 |
2178 | signal (w->signum, ev_sighandler); |
2600 | signal (w->signum, ev_sighandler); |
2179 | #else |
2601 | #else |
2180 | struct sigaction sa; |
2602 | struct sigaction sa = { }; |
2181 | sa.sa_handler = ev_sighandler; |
2603 | sa.sa_handler = ev_sighandler; |
2182 | sigfillset (&sa.sa_mask); |
2604 | sigfillset (&sa.sa_mask); |
2183 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2605 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2184 | sigaction (w->signum, &sa, 0); |
2606 | sigaction (w->signum, &sa, 0); |
2185 | #endif |
2607 | #endif |
2186 | } |
2608 | } |
|
|
2609 | |
|
|
2610 | EV_FREQUENT_CHECK; |
2187 | } |
2611 | } |
2188 | |
2612 | |
2189 | void noinline |
2613 | void noinline |
2190 | ev_signal_stop (EV_P_ ev_signal *w) |
2614 | ev_signal_stop (EV_P_ ev_signal *w) |
2191 | { |
2615 | { |
2192 | clear_pending (EV_A_ (W)w); |
2616 | clear_pending (EV_A_ (W)w); |
2193 | if (expect_false (!ev_is_active (w))) |
2617 | if (expect_false (!ev_is_active (w))) |
2194 | return; |
2618 | return; |
2195 | |
2619 | |
|
|
2620 | EV_FREQUENT_CHECK; |
|
|
2621 | |
2196 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2622 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2197 | ev_stop (EV_A_ (W)w); |
2623 | ev_stop (EV_A_ (W)w); |
2198 | |
2624 | |
2199 | if (!signals [w->signum - 1].head) |
2625 | if (!signals [w->signum - 1].head) |
2200 | signal (w->signum, SIG_DFL); |
2626 | signal (w->signum, SIG_DFL); |
|
|
2627 | |
|
|
2628 | EV_FREQUENT_CHECK; |
2201 | } |
2629 | } |
2202 | |
2630 | |
2203 | void |
2631 | void |
2204 | ev_child_start (EV_P_ ev_child *w) |
2632 | ev_child_start (EV_P_ ev_child *w) |
2205 | { |
2633 | { |
2206 | #if EV_MULTIPLICITY |
2634 | #if EV_MULTIPLICITY |
2207 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2635 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2208 | #endif |
2636 | #endif |
2209 | if (expect_false (ev_is_active (w))) |
2637 | if (expect_false (ev_is_active (w))) |
2210 | return; |
2638 | return; |
2211 | |
2639 | |
|
|
2640 | EV_FREQUENT_CHECK; |
|
|
2641 | |
2212 | ev_start (EV_A_ (W)w, 1); |
2642 | ev_start (EV_A_ (W)w, 1); |
2213 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2643 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2644 | |
|
|
2645 | EV_FREQUENT_CHECK; |
2214 | } |
2646 | } |
2215 | |
2647 | |
2216 | void |
2648 | void |
2217 | ev_child_stop (EV_P_ ev_child *w) |
2649 | ev_child_stop (EV_P_ ev_child *w) |
2218 | { |
2650 | { |
2219 | clear_pending (EV_A_ (W)w); |
2651 | clear_pending (EV_A_ (W)w); |
2220 | if (expect_false (!ev_is_active (w))) |
2652 | if (expect_false (!ev_is_active (w))) |
2221 | return; |
2653 | return; |
2222 | |
2654 | |
|
|
2655 | EV_FREQUENT_CHECK; |
|
|
2656 | |
2223 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2657 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2224 | ev_stop (EV_A_ (W)w); |
2658 | ev_stop (EV_A_ (W)w); |
|
|
2659 | |
|
|
2660 | EV_FREQUENT_CHECK; |
2225 | } |
2661 | } |
2226 | |
2662 | |
2227 | #if EV_STAT_ENABLE |
2663 | #if EV_STAT_ENABLE |
2228 | |
2664 | |
2229 | # ifdef _WIN32 |
2665 | # ifdef _WIN32 |
2230 | # undef lstat |
2666 | # undef lstat |
2231 | # define lstat(a,b) _stati64 (a,b) |
2667 | # define lstat(a,b) _stati64 (a,b) |
2232 | # endif |
2668 | # endif |
2233 | |
2669 | |
2234 | #define DEF_STAT_INTERVAL 5.0074891 |
2670 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2671 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2235 | #define MIN_STAT_INTERVAL 0.1074891 |
2672 | #define MIN_STAT_INTERVAL 0.1074891 |
2236 | |
2673 | |
2237 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2674 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2238 | |
2675 | |
2239 | #if EV_USE_INOTIFY |
2676 | #if EV_USE_INOTIFY |
2240 | # define EV_INOTIFY_BUFSIZE 8192 |
2677 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2244 | { |
2681 | { |
2245 | 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); |
2682 | 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); |
2246 | |
2683 | |
2247 | if (w->wd < 0) |
2684 | if (w->wd < 0) |
2248 | { |
2685 | { |
|
|
2686 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2249 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2687 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2250 | |
2688 | |
2251 | /* monitor some parent directory for speedup hints */ |
2689 | /* monitor some parent directory for speedup hints */ |
2252 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2690 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2253 | /* but an efficiency issue only */ |
2691 | /* but an efficiency issue only */ |
2254 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2692 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2255 | { |
2693 | { |
2256 | char path [4096]; |
2694 | char path [4096]; |
2257 | strcpy (path, w->path); |
2695 | strcpy (path, w->path); |
… | |
… | |
2261 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2699 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2262 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2700 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2263 | |
2701 | |
2264 | char *pend = strrchr (path, '/'); |
2702 | char *pend = strrchr (path, '/'); |
2265 | |
2703 | |
2266 | if (!pend) |
2704 | if (!pend || pend == path) |
2267 | break; /* whoops, no '/', complain to your admin */ |
2705 | break; |
2268 | |
2706 | |
2269 | *pend = 0; |
2707 | *pend = 0; |
2270 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2708 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2271 | } |
2709 | } |
2272 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2710 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2273 | } |
2711 | } |
2274 | } |
2712 | } |
2275 | else |
|
|
2276 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2277 | |
2713 | |
2278 | if (w->wd >= 0) |
2714 | if (w->wd >= 0) |
|
|
2715 | { |
2279 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2716 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2717 | |
|
|
2718 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2719 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2720 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2721 | struct statfs sfs; |
|
|
2722 | |
|
|
2723 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2724 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2725 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2726 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2727 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2728 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2729 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2733 | ev_timer_again (EV_A_ &w->timer); |
|
|
2734 | } |
2280 | } |
2735 | } |
2281 | |
2736 | |
2282 | static void noinline |
2737 | static void noinline |
2283 | infy_del (EV_P_ ev_stat *w) |
2738 | infy_del (EV_P_ ev_stat *w) |
2284 | { |
2739 | { |
… | |
… | |
2298 | |
2753 | |
2299 | static void noinline |
2754 | static void noinline |
2300 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2755 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2301 | { |
2756 | { |
2302 | if (slot < 0) |
2757 | if (slot < 0) |
2303 | /* overflow, need to check for all hahs slots */ |
2758 | /* overflow, need to check for all hash slots */ |
2304 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2759 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2305 | infy_wd (EV_A_ slot, wd, ev); |
2760 | infy_wd (EV_A_ slot, wd, ev); |
2306 | else |
2761 | else |
2307 | { |
2762 | { |
2308 | WL w_; |
2763 | WL w_; |
… | |
… | |
2314 | |
2769 | |
2315 | if (w->wd == wd || wd == -1) |
2770 | if (w->wd == wd || wd == -1) |
2316 | { |
2771 | { |
2317 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2772 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2318 | { |
2773 | { |
|
|
2774 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2319 | w->wd = -1; |
2775 | w->wd = -1; |
2320 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2776 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2321 | } |
2777 | } |
2322 | |
2778 | |
2323 | stat_timer_cb (EV_A_ &w->timer, 0); |
2779 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2336 | |
2792 | |
2337 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2793 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2338 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2794 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2339 | } |
2795 | } |
2340 | |
2796 | |
2341 | void inline_size |
2797 | inline_size void |
|
|
2798 | check_2625 (EV_P) |
|
|
2799 | { |
|
|
2800 | /* kernels < 2.6.25 are borked |
|
|
2801 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2802 | */ |
|
|
2803 | struct utsname buf; |
|
|
2804 | int major, minor, micro; |
|
|
2805 | |
|
|
2806 | if (uname (&buf)) |
|
|
2807 | return; |
|
|
2808 | |
|
|
2809 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2810 | return; |
|
|
2811 | |
|
|
2812 | if (major < 2 |
|
|
2813 | || (major == 2 && minor < 6) |
|
|
2814 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2815 | return; |
|
|
2816 | |
|
|
2817 | fs_2625 = 1; |
|
|
2818 | } |
|
|
2819 | |
|
|
2820 | inline_size void |
2342 | infy_init (EV_P) |
2821 | infy_init (EV_P) |
2343 | { |
2822 | { |
2344 | if (fs_fd != -2) |
2823 | if (fs_fd != -2) |
2345 | return; |
2824 | return; |
|
|
2825 | |
|
|
2826 | fs_fd = -1; |
|
|
2827 | |
|
|
2828 | check_2625 (EV_A); |
2346 | |
2829 | |
2347 | fs_fd = inotify_init (); |
2830 | fs_fd = inotify_init (); |
2348 | |
2831 | |
2349 | if (fs_fd >= 0) |
2832 | if (fs_fd >= 0) |
2350 | { |
2833 | { |
… | |
… | |
2352 | ev_set_priority (&fs_w, EV_MAXPRI); |
2835 | ev_set_priority (&fs_w, EV_MAXPRI); |
2353 | ev_io_start (EV_A_ &fs_w); |
2836 | ev_io_start (EV_A_ &fs_w); |
2354 | } |
2837 | } |
2355 | } |
2838 | } |
2356 | |
2839 | |
2357 | void inline_size |
2840 | inline_size void |
2358 | infy_fork (EV_P) |
2841 | infy_fork (EV_P) |
2359 | { |
2842 | { |
2360 | int slot; |
2843 | int slot; |
2361 | |
2844 | |
2362 | if (fs_fd < 0) |
2845 | if (fs_fd < 0) |
… | |
… | |
2378 | w->wd = -1; |
2861 | w->wd = -1; |
2379 | |
2862 | |
2380 | if (fs_fd >= 0) |
2863 | if (fs_fd >= 0) |
2381 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2864 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2382 | else |
2865 | else |
2383 | ev_timer_start (EV_A_ &w->timer); |
2866 | ev_timer_again (EV_A_ &w->timer); |
2384 | } |
2867 | } |
2385 | |
|
|
2386 | } |
2868 | } |
2387 | } |
2869 | } |
2388 | |
2870 | |
|
|
2871 | #endif |
|
|
2872 | |
|
|
2873 | #ifdef _WIN32 |
|
|
2874 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2875 | #else |
|
|
2876 | # define EV_LSTAT(p,b) lstat (p, b) |
2389 | #endif |
2877 | #endif |
2390 | |
2878 | |
2391 | void |
2879 | void |
2392 | ev_stat_stat (EV_P_ ev_stat *w) |
2880 | ev_stat_stat (EV_P_ ev_stat *w) |
2393 | { |
2881 | { |
… | |
… | |
2420 | || w->prev.st_atime != w->attr.st_atime |
2908 | || w->prev.st_atime != w->attr.st_atime |
2421 | || w->prev.st_mtime != w->attr.st_mtime |
2909 | || w->prev.st_mtime != w->attr.st_mtime |
2422 | || w->prev.st_ctime != w->attr.st_ctime |
2910 | || w->prev.st_ctime != w->attr.st_ctime |
2423 | ) { |
2911 | ) { |
2424 | #if EV_USE_INOTIFY |
2912 | #if EV_USE_INOTIFY |
|
|
2913 | if (fs_fd >= 0) |
|
|
2914 | { |
2425 | infy_del (EV_A_ w); |
2915 | infy_del (EV_A_ w); |
2426 | infy_add (EV_A_ w); |
2916 | infy_add (EV_A_ w); |
2427 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2917 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2918 | } |
2428 | #endif |
2919 | #endif |
2429 | |
2920 | |
2430 | ev_feed_event (EV_A_ w, EV_STAT); |
2921 | ev_feed_event (EV_A_ w, EV_STAT); |
2431 | } |
2922 | } |
2432 | } |
2923 | } |
… | |
… | |
2435 | ev_stat_start (EV_P_ ev_stat *w) |
2926 | ev_stat_start (EV_P_ ev_stat *w) |
2436 | { |
2927 | { |
2437 | if (expect_false (ev_is_active (w))) |
2928 | if (expect_false (ev_is_active (w))) |
2438 | return; |
2929 | return; |
2439 | |
2930 | |
2440 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2441 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2442 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2443 | |
|
|
2444 | ev_stat_stat (EV_A_ w); |
2931 | ev_stat_stat (EV_A_ w); |
2445 | |
2932 | |
|
|
2933 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2446 | if (w->interval < MIN_STAT_INTERVAL) |
2934 | w->interval = MIN_STAT_INTERVAL; |
2447 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2448 | |
2935 | |
2449 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2936 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2450 | ev_set_priority (&w->timer, ev_priority (w)); |
2937 | ev_set_priority (&w->timer, ev_priority (w)); |
2451 | |
2938 | |
2452 | #if EV_USE_INOTIFY |
2939 | #if EV_USE_INOTIFY |
2453 | infy_init (EV_A); |
2940 | infy_init (EV_A); |
2454 | |
2941 | |
2455 | if (fs_fd >= 0) |
2942 | if (fs_fd >= 0) |
2456 | infy_add (EV_A_ w); |
2943 | infy_add (EV_A_ w); |
2457 | else |
2944 | else |
2458 | #endif |
2945 | #endif |
2459 | ev_timer_start (EV_A_ &w->timer); |
2946 | ev_timer_again (EV_A_ &w->timer); |
2460 | |
2947 | |
2461 | ev_start (EV_A_ (W)w, 1); |
2948 | ev_start (EV_A_ (W)w, 1); |
|
|
2949 | |
|
|
2950 | EV_FREQUENT_CHECK; |
2462 | } |
2951 | } |
2463 | |
2952 | |
2464 | void |
2953 | void |
2465 | ev_stat_stop (EV_P_ ev_stat *w) |
2954 | ev_stat_stop (EV_P_ ev_stat *w) |
2466 | { |
2955 | { |
2467 | clear_pending (EV_A_ (W)w); |
2956 | clear_pending (EV_A_ (W)w); |
2468 | if (expect_false (!ev_is_active (w))) |
2957 | if (expect_false (!ev_is_active (w))) |
2469 | return; |
2958 | return; |
2470 | |
2959 | |
|
|
2960 | EV_FREQUENT_CHECK; |
|
|
2961 | |
2471 | #if EV_USE_INOTIFY |
2962 | #if EV_USE_INOTIFY |
2472 | infy_del (EV_A_ w); |
2963 | infy_del (EV_A_ w); |
2473 | #endif |
2964 | #endif |
2474 | ev_timer_stop (EV_A_ &w->timer); |
2965 | ev_timer_stop (EV_A_ &w->timer); |
2475 | |
2966 | |
2476 | ev_stop (EV_A_ (W)w); |
2967 | ev_stop (EV_A_ (W)w); |
|
|
2968 | |
|
|
2969 | EV_FREQUENT_CHECK; |
2477 | } |
2970 | } |
2478 | #endif |
2971 | #endif |
2479 | |
2972 | |
2480 | #if EV_IDLE_ENABLE |
2973 | #if EV_IDLE_ENABLE |
2481 | void |
2974 | void |
… | |
… | |
2483 | { |
2976 | { |
2484 | if (expect_false (ev_is_active (w))) |
2977 | if (expect_false (ev_is_active (w))) |
2485 | return; |
2978 | return; |
2486 | |
2979 | |
2487 | pri_adjust (EV_A_ (W)w); |
2980 | pri_adjust (EV_A_ (W)w); |
|
|
2981 | |
|
|
2982 | EV_FREQUENT_CHECK; |
2488 | |
2983 | |
2489 | { |
2984 | { |
2490 | int active = ++idlecnt [ABSPRI (w)]; |
2985 | int active = ++idlecnt [ABSPRI (w)]; |
2491 | |
2986 | |
2492 | ++idleall; |
2987 | ++idleall; |
2493 | ev_start (EV_A_ (W)w, active); |
2988 | ev_start (EV_A_ (W)w, active); |
2494 | |
2989 | |
2495 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2990 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2496 | idles [ABSPRI (w)][active - 1] = w; |
2991 | idles [ABSPRI (w)][active - 1] = w; |
2497 | } |
2992 | } |
|
|
2993 | |
|
|
2994 | EV_FREQUENT_CHECK; |
2498 | } |
2995 | } |
2499 | |
2996 | |
2500 | void |
2997 | void |
2501 | ev_idle_stop (EV_P_ ev_idle *w) |
2998 | ev_idle_stop (EV_P_ ev_idle *w) |
2502 | { |
2999 | { |
2503 | clear_pending (EV_A_ (W)w); |
3000 | clear_pending (EV_A_ (W)w); |
2504 | if (expect_false (!ev_is_active (w))) |
3001 | if (expect_false (!ev_is_active (w))) |
2505 | return; |
3002 | return; |
2506 | |
3003 | |
|
|
3004 | EV_FREQUENT_CHECK; |
|
|
3005 | |
2507 | { |
3006 | { |
2508 | int active = ev_active (w); |
3007 | int active = ev_active (w); |
2509 | |
3008 | |
2510 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3009 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2511 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
3010 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2512 | |
3011 | |
2513 | ev_stop (EV_A_ (W)w); |
3012 | ev_stop (EV_A_ (W)w); |
2514 | --idleall; |
3013 | --idleall; |
2515 | } |
3014 | } |
|
|
3015 | |
|
|
3016 | EV_FREQUENT_CHECK; |
2516 | } |
3017 | } |
2517 | #endif |
3018 | #endif |
2518 | |
3019 | |
2519 | void |
3020 | void |
2520 | ev_prepare_start (EV_P_ ev_prepare *w) |
3021 | ev_prepare_start (EV_P_ ev_prepare *w) |
2521 | { |
3022 | { |
2522 | if (expect_false (ev_is_active (w))) |
3023 | if (expect_false (ev_is_active (w))) |
2523 | return; |
3024 | return; |
|
|
3025 | |
|
|
3026 | EV_FREQUENT_CHECK; |
2524 | |
3027 | |
2525 | ev_start (EV_A_ (W)w, ++preparecnt); |
3028 | ev_start (EV_A_ (W)w, ++preparecnt); |
2526 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3029 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2527 | prepares [preparecnt - 1] = w; |
3030 | prepares [preparecnt - 1] = w; |
|
|
3031 | |
|
|
3032 | EV_FREQUENT_CHECK; |
2528 | } |
3033 | } |
2529 | |
3034 | |
2530 | void |
3035 | void |
2531 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3036 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2532 | { |
3037 | { |
2533 | clear_pending (EV_A_ (W)w); |
3038 | clear_pending (EV_A_ (W)w); |
2534 | if (expect_false (!ev_is_active (w))) |
3039 | if (expect_false (!ev_is_active (w))) |
2535 | return; |
3040 | return; |
2536 | |
3041 | |
|
|
3042 | EV_FREQUENT_CHECK; |
|
|
3043 | |
2537 | { |
3044 | { |
2538 | int active = ev_active (w); |
3045 | int active = ev_active (w); |
2539 | |
3046 | |
2540 | prepares [active - 1] = prepares [--preparecnt]; |
3047 | prepares [active - 1] = prepares [--preparecnt]; |
2541 | ev_active (prepares [active - 1]) = active; |
3048 | ev_active (prepares [active - 1]) = active; |
2542 | } |
3049 | } |
2543 | |
3050 | |
2544 | ev_stop (EV_A_ (W)w); |
3051 | ev_stop (EV_A_ (W)w); |
|
|
3052 | |
|
|
3053 | EV_FREQUENT_CHECK; |
2545 | } |
3054 | } |
2546 | |
3055 | |
2547 | void |
3056 | void |
2548 | ev_check_start (EV_P_ ev_check *w) |
3057 | ev_check_start (EV_P_ ev_check *w) |
2549 | { |
3058 | { |
2550 | if (expect_false (ev_is_active (w))) |
3059 | if (expect_false (ev_is_active (w))) |
2551 | return; |
3060 | return; |
|
|
3061 | |
|
|
3062 | EV_FREQUENT_CHECK; |
2552 | |
3063 | |
2553 | ev_start (EV_A_ (W)w, ++checkcnt); |
3064 | ev_start (EV_A_ (W)w, ++checkcnt); |
2554 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3065 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2555 | checks [checkcnt - 1] = w; |
3066 | checks [checkcnt - 1] = w; |
|
|
3067 | |
|
|
3068 | EV_FREQUENT_CHECK; |
2556 | } |
3069 | } |
2557 | |
3070 | |
2558 | void |
3071 | void |
2559 | ev_check_stop (EV_P_ ev_check *w) |
3072 | ev_check_stop (EV_P_ ev_check *w) |
2560 | { |
3073 | { |
2561 | clear_pending (EV_A_ (W)w); |
3074 | clear_pending (EV_A_ (W)w); |
2562 | if (expect_false (!ev_is_active (w))) |
3075 | if (expect_false (!ev_is_active (w))) |
2563 | return; |
3076 | return; |
2564 | |
3077 | |
|
|
3078 | EV_FREQUENT_CHECK; |
|
|
3079 | |
2565 | { |
3080 | { |
2566 | int active = ev_active (w); |
3081 | int active = ev_active (w); |
2567 | |
3082 | |
2568 | checks [active - 1] = checks [--checkcnt]; |
3083 | checks [active - 1] = checks [--checkcnt]; |
2569 | ev_active (checks [active - 1]) = active; |
3084 | ev_active (checks [active - 1]) = active; |
2570 | } |
3085 | } |
2571 | |
3086 | |
2572 | ev_stop (EV_A_ (W)w); |
3087 | ev_stop (EV_A_ (W)w); |
|
|
3088 | |
|
|
3089 | EV_FREQUENT_CHECK; |
2573 | } |
3090 | } |
2574 | |
3091 | |
2575 | #if EV_EMBED_ENABLE |
3092 | #if EV_EMBED_ENABLE |
2576 | void noinline |
3093 | void noinline |
2577 | ev_embed_sweep (EV_P_ ev_embed *w) |
3094 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2604 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3121 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2605 | } |
3122 | } |
2606 | } |
3123 | } |
2607 | } |
3124 | } |
2608 | |
3125 | |
|
|
3126 | static void |
|
|
3127 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3128 | { |
|
|
3129 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3130 | |
|
|
3131 | ev_embed_stop (EV_A_ w); |
|
|
3132 | |
|
|
3133 | { |
|
|
3134 | struct ev_loop *loop = w->other; |
|
|
3135 | |
|
|
3136 | ev_loop_fork (EV_A); |
|
|
3137 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3138 | } |
|
|
3139 | |
|
|
3140 | ev_embed_start (EV_A_ w); |
|
|
3141 | } |
|
|
3142 | |
2609 | #if 0 |
3143 | #if 0 |
2610 | static void |
3144 | static void |
2611 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3145 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2612 | { |
3146 | { |
2613 | ev_idle_stop (EV_A_ idle); |
3147 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2620 | if (expect_false (ev_is_active (w))) |
3154 | if (expect_false (ev_is_active (w))) |
2621 | return; |
3155 | return; |
2622 | |
3156 | |
2623 | { |
3157 | { |
2624 | struct ev_loop *loop = w->other; |
3158 | struct ev_loop *loop = w->other; |
2625 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3159 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2626 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3160 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2627 | } |
3161 | } |
|
|
3162 | |
|
|
3163 | EV_FREQUENT_CHECK; |
2628 | |
3164 | |
2629 | ev_set_priority (&w->io, ev_priority (w)); |
3165 | ev_set_priority (&w->io, ev_priority (w)); |
2630 | ev_io_start (EV_A_ &w->io); |
3166 | ev_io_start (EV_A_ &w->io); |
2631 | |
3167 | |
2632 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3168 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2633 | ev_set_priority (&w->prepare, EV_MINPRI); |
3169 | ev_set_priority (&w->prepare, EV_MINPRI); |
2634 | ev_prepare_start (EV_A_ &w->prepare); |
3170 | ev_prepare_start (EV_A_ &w->prepare); |
2635 | |
3171 | |
|
|
3172 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3173 | ev_fork_start (EV_A_ &w->fork); |
|
|
3174 | |
2636 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3175 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2637 | |
3176 | |
2638 | ev_start (EV_A_ (W)w, 1); |
3177 | ev_start (EV_A_ (W)w, 1); |
|
|
3178 | |
|
|
3179 | EV_FREQUENT_CHECK; |
2639 | } |
3180 | } |
2640 | |
3181 | |
2641 | void |
3182 | void |
2642 | ev_embed_stop (EV_P_ ev_embed *w) |
3183 | ev_embed_stop (EV_P_ ev_embed *w) |
2643 | { |
3184 | { |
2644 | clear_pending (EV_A_ (W)w); |
3185 | clear_pending (EV_A_ (W)w); |
2645 | if (expect_false (!ev_is_active (w))) |
3186 | if (expect_false (!ev_is_active (w))) |
2646 | return; |
3187 | return; |
2647 | |
3188 | |
|
|
3189 | EV_FREQUENT_CHECK; |
|
|
3190 | |
2648 | ev_io_stop (EV_A_ &w->io); |
3191 | ev_io_stop (EV_A_ &w->io); |
2649 | ev_prepare_stop (EV_A_ &w->prepare); |
3192 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3193 | ev_fork_stop (EV_A_ &w->fork); |
2650 | |
3194 | |
2651 | ev_stop (EV_A_ (W)w); |
3195 | EV_FREQUENT_CHECK; |
2652 | } |
3196 | } |
2653 | #endif |
3197 | #endif |
2654 | |
3198 | |
2655 | #if EV_FORK_ENABLE |
3199 | #if EV_FORK_ENABLE |
2656 | void |
3200 | void |
2657 | ev_fork_start (EV_P_ ev_fork *w) |
3201 | ev_fork_start (EV_P_ ev_fork *w) |
2658 | { |
3202 | { |
2659 | if (expect_false (ev_is_active (w))) |
3203 | if (expect_false (ev_is_active (w))) |
2660 | return; |
3204 | return; |
|
|
3205 | |
|
|
3206 | EV_FREQUENT_CHECK; |
2661 | |
3207 | |
2662 | ev_start (EV_A_ (W)w, ++forkcnt); |
3208 | ev_start (EV_A_ (W)w, ++forkcnt); |
2663 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3209 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2664 | forks [forkcnt - 1] = w; |
3210 | forks [forkcnt - 1] = w; |
|
|
3211 | |
|
|
3212 | EV_FREQUENT_CHECK; |
2665 | } |
3213 | } |
2666 | |
3214 | |
2667 | void |
3215 | void |
2668 | ev_fork_stop (EV_P_ ev_fork *w) |
3216 | ev_fork_stop (EV_P_ ev_fork *w) |
2669 | { |
3217 | { |
2670 | clear_pending (EV_A_ (W)w); |
3218 | clear_pending (EV_A_ (W)w); |
2671 | if (expect_false (!ev_is_active (w))) |
3219 | if (expect_false (!ev_is_active (w))) |
2672 | return; |
3220 | return; |
2673 | |
3221 | |
|
|
3222 | EV_FREQUENT_CHECK; |
|
|
3223 | |
2674 | { |
3224 | { |
2675 | int active = ev_active (w); |
3225 | int active = ev_active (w); |
2676 | |
3226 | |
2677 | forks [active - 1] = forks [--forkcnt]; |
3227 | forks [active - 1] = forks [--forkcnt]; |
2678 | ev_active (forks [active - 1]) = active; |
3228 | ev_active (forks [active - 1]) = active; |
2679 | } |
3229 | } |
2680 | |
3230 | |
2681 | ev_stop (EV_A_ (W)w); |
3231 | ev_stop (EV_A_ (W)w); |
|
|
3232 | |
|
|
3233 | EV_FREQUENT_CHECK; |
2682 | } |
3234 | } |
2683 | #endif |
3235 | #endif |
2684 | |
3236 | |
2685 | #if EV_ASYNC_ENABLE |
3237 | #if EV_ASYNC_ENABLE |
2686 | void |
3238 | void |
… | |
… | |
2688 | { |
3240 | { |
2689 | if (expect_false (ev_is_active (w))) |
3241 | if (expect_false (ev_is_active (w))) |
2690 | return; |
3242 | return; |
2691 | |
3243 | |
2692 | evpipe_init (EV_A); |
3244 | evpipe_init (EV_A); |
|
|
3245 | |
|
|
3246 | EV_FREQUENT_CHECK; |
2693 | |
3247 | |
2694 | ev_start (EV_A_ (W)w, ++asynccnt); |
3248 | ev_start (EV_A_ (W)w, ++asynccnt); |
2695 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3249 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2696 | asyncs [asynccnt - 1] = w; |
3250 | asyncs [asynccnt - 1] = w; |
|
|
3251 | |
|
|
3252 | EV_FREQUENT_CHECK; |
2697 | } |
3253 | } |
2698 | |
3254 | |
2699 | void |
3255 | void |
2700 | ev_async_stop (EV_P_ ev_async *w) |
3256 | ev_async_stop (EV_P_ ev_async *w) |
2701 | { |
3257 | { |
2702 | clear_pending (EV_A_ (W)w); |
3258 | clear_pending (EV_A_ (W)w); |
2703 | if (expect_false (!ev_is_active (w))) |
3259 | if (expect_false (!ev_is_active (w))) |
2704 | return; |
3260 | return; |
2705 | |
3261 | |
|
|
3262 | EV_FREQUENT_CHECK; |
|
|
3263 | |
2706 | { |
3264 | { |
2707 | int active = ev_active (w); |
3265 | int active = ev_active (w); |
2708 | |
3266 | |
2709 | asyncs [active - 1] = asyncs [--asynccnt]; |
3267 | asyncs [active - 1] = asyncs [--asynccnt]; |
2710 | ev_active (asyncs [active - 1]) = active; |
3268 | ev_active (asyncs [active - 1]) = active; |
2711 | } |
3269 | } |
2712 | |
3270 | |
2713 | ev_stop (EV_A_ (W)w); |
3271 | ev_stop (EV_A_ (W)w); |
|
|
3272 | |
|
|
3273 | EV_FREQUENT_CHECK; |
2714 | } |
3274 | } |
2715 | |
3275 | |
2716 | void |
3276 | void |
2717 | ev_async_send (EV_P_ ev_async *w) |
3277 | ev_async_send (EV_P_ ev_async *w) |
2718 | { |
3278 | { |
… | |
… | |
2735 | once_cb (EV_P_ struct ev_once *once, int revents) |
3295 | once_cb (EV_P_ struct ev_once *once, int revents) |
2736 | { |
3296 | { |
2737 | void (*cb)(int revents, void *arg) = once->cb; |
3297 | void (*cb)(int revents, void *arg) = once->cb; |
2738 | void *arg = once->arg; |
3298 | void *arg = once->arg; |
2739 | |
3299 | |
2740 | ev_io_stop (EV_A_ &once->io); |
3300 | ev_io_stop (EV_A_ &once->io); |
2741 | ev_timer_stop (EV_A_ &once->to); |
3301 | ev_timer_stop (EV_A_ &once->to); |
2742 | ev_free (once); |
3302 | ev_free (once); |
2743 | |
3303 | |
2744 | cb (revents, arg); |
3304 | cb (revents, arg); |
2745 | } |
3305 | } |
2746 | |
3306 | |
2747 | static void |
3307 | static void |
2748 | once_cb_io (EV_P_ ev_io *w, int revents) |
3308 | once_cb_io (EV_P_ ev_io *w, int revents) |
2749 | { |
3309 | { |
2750 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3310 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3311 | |
|
|
3312 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2751 | } |
3313 | } |
2752 | |
3314 | |
2753 | static void |
3315 | static void |
2754 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3316 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2755 | { |
3317 | { |
2756 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3318 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3319 | |
|
|
3320 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2757 | } |
3321 | } |
2758 | |
3322 | |
2759 | void |
3323 | void |
2760 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3324 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2761 | { |
3325 | { |
… | |
… | |
2783 | ev_timer_set (&once->to, timeout, 0.); |
3347 | ev_timer_set (&once->to, timeout, 0.); |
2784 | ev_timer_start (EV_A_ &once->to); |
3348 | ev_timer_start (EV_A_ &once->to); |
2785 | } |
3349 | } |
2786 | } |
3350 | } |
2787 | |
3351 | |
|
|
3352 | /*****************************************************************************/ |
|
|
3353 | |
|
|
3354 | #if EV_WALK_ENABLE |
|
|
3355 | void |
|
|
3356 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3357 | { |
|
|
3358 | int i, j; |
|
|
3359 | ev_watcher_list *wl, *wn; |
|
|
3360 | |
|
|
3361 | if (types & (EV_IO | EV_EMBED)) |
|
|
3362 | for (i = 0; i < anfdmax; ++i) |
|
|
3363 | for (wl = anfds [i].head; wl; ) |
|
|
3364 | { |
|
|
3365 | wn = wl->next; |
|
|
3366 | |
|
|
3367 | #if EV_EMBED_ENABLE |
|
|
3368 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3369 | { |
|
|
3370 | if (types & EV_EMBED) |
|
|
3371 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3372 | } |
|
|
3373 | else |
|
|
3374 | #endif |
|
|
3375 | #if EV_USE_INOTIFY |
|
|
3376 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3377 | ; |
|
|
3378 | else |
|
|
3379 | #endif |
|
|
3380 | if ((ev_io *)wl != &pipe_w) |
|
|
3381 | if (types & EV_IO) |
|
|
3382 | cb (EV_A_ EV_IO, wl); |
|
|
3383 | |
|
|
3384 | wl = wn; |
|
|
3385 | } |
|
|
3386 | |
|
|
3387 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3388 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3389 | #if EV_STAT_ENABLE |
|
|
3390 | /*TODO: timer is not always active*/ |
|
|
3391 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3392 | { |
|
|
3393 | if (types & EV_STAT) |
|
|
3394 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3395 | } |
|
|
3396 | else |
|
|
3397 | #endif |
|
|
3398 | if (types & EV_TIMER) |
|
|
3399 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3400 | |
|
|
3401 | #if EV_PERIODIC_ENABLE |
|
|
3402 | if (types & EV_PERIODIC) |
|
|
3403 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3404 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3405 | #endif |
|
|
3406 | |
|
|
3407 | #if EV_IDLE_ENABLE |
|
|
3408 | if (types & EV_IDLE) |
|
|
3409 | for (j = NUMPRI; i--; ) |
|
|
3410 | for (i = idlecnt [j]; i--; ) |
|
|
3411 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3412 | #endif |
|
|
3413 | |
|
|
3414 | #if EV_FORK_ENABLE |
|
|
3415 | if (types & EV_FORK) |
|
|
3416 | for (i = forkcnt; i--; ) |
|
|
3417 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3418 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3419 | #endif |
|
|
3420 | |
|
|
3421 | #if EV_ASYNC_ENABLE |
|
|
3422 | if (types & EV_ASYNC) |
|
|
3423 | for (i = asynccnt; i--; ) |
|
|
3424 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3425 | #endif |
|
|
3426 | |
|
|
3427 | if (types & EV_PREPARE) |
|
|
3428 | for (i = preparecnt; i--; ) |
|
|
3429 | #if EV_EMBED_ENABLE |
|
|
3430 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3431 | #endif |
|
|
3432 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3433 | |
|
|
3434 | if (types & EV_CHECK) |
|
|
3435 | for (i = checkcnt; i--; ) |
|
|
3436 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3437 | |
|
|
3438 | if (types & EV_SIGNAL) |
|
|
3439 | for (i = 0; i < signalmax; ++i) |
|
|
3440 | for (wl = signals [i].head; wl; ) |
|
|
3441 | { |
|
|
3442 | wn = wl->next; |
|
|
3443 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3444 | wl = wn; |
|
|
3445 | } |
|
|
3446 | |
|
|
3447 | if (types & EV_CHILD) |
|
|
3448 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3449 | for (wl = childs [i]; wl; ) |
|
|
3450 | { |
|
|
3451 | wn = wl->next; |
|
|
3452 | cb (EV_A_ EV_CHILD, wl); |
|
|
3453 | wl = wn; |
|
|
3454 | } |
|
|
3455 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3456 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3457 | } |
|
|
3458 | #endif |
|
|
3459 | |
2788 | #if EV_MULTIPLICITY |
3460 | #if EV_MULTIPLICITY |
2789 | #include "ev_wrap.h" |
3461 | #include "ev_wrap.h" |
2790 | #endif |
3462 | #endif |
2791 | |
3463 | |
2792 | #ifdef __cplusplus |
3464 | #ifdef __cplusplus |