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 | |
|
|
281 | #ifndef EV_USE_4HEAP |
|
|
282 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
283 | #endif |
|
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284 | |
|
|
285 | #ifndef EV_HEAP_CACHE_AT |
|
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286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
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287 | #endif |
|
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288 | |
|
|
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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|
290 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
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 |
|
|
301 | #endif |
|
|
302 | |
240 | /* 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 */ |
241 | |
304 | |
242 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
322 | # include <sys/select.h> |
260 | # endif |
323 | # endif |
261 | #endif |
324 | #endif |
262 | |
325 | |
263 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
|
|
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
264 | # 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 |
265 | #endif |
335 | #endif |
266 | |
336 | |
267 | #if EV_SELECT_IS_WINSOCKET |
337 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
338 | # include <winsock.h> |
269 | #endif |
339 | #endif |
… | |
… | |
279 | } |
349 | } |
280 | # endif |
350 | # endif |
281 | #endif |
351 | #endif |
282 | |
352 | |
283 | /**/ |
353 | /**/ |
|
|
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 |
284 | |
360 | |
285 | /* |
361 | /* |
286 | * This is used to avoid floating point rounding problems. |
362 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
363 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
364 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
315 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
316 | #else |
392 | #else |
317 | # define inline_speed static inline |
393 | # define inline_speed static inline |
318 | #endif |
394 | #endif |
319 | |
395 | |
320 | #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 |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
402 | #endif |
322 | |
403 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
406 | |
326 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
408 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
329 | |
410 | |
330 | #if EV_USE_MONOTONIC |
411 | #define ev_active(w) ((W)(w))->active |
|
|
412 | #define ev_at(w) ((WT)(w))->at |
|
|
413 | |
|
|
414 | #if EV_USE_REALTIME |
331 | /* 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 */ |
332 | /* 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 |
|
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419 | |
|
|
420 | #if EV_USE_MONOTONIC |
333 | 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? */ |
334 | #endif |
422 | #endif |
335 | |
423 | |
336 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
… | |
… | |
346 | { |
434 | { |
347 | syserr_cb = cb; |
435 | syserr_cb = cb; |
348 | } |
436 | } |
349 | |
437 | |
350 | static void noinline |
438 | static void noinline |
351 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
352 | { |
440 | { |
353 | if (!msg) |
441 | if (!msg) |
354 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
355 | |
443 | |
356 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
402 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
403 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
404 | |
492 | |
405 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
406 | |
494 | |
|
|
495 | /* set in reify when reification needed */ |
|
|
496 | #define EV_ANFD_REIFY 1 |
|
|
497 | |
|
|
498 | /* file descriptor info structure */ |
407 | typedef struct |
499 | typedef struct |
408 | { |
500 | { |
409 | WL head; |
501 | WL head; |
410 | 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 */ |
411 | unsigned char reify; |
505 | unsigned char unused; |
|
|
506 | #if EV_USE_EPOLL |
|
|
507 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
508 | #endif |
412 | #if EV_SELECT_IS_WINSOCKET |
509 | #if EV_SELECT_IS_WINSOCKET |
413 | SOCKET handle; |
510 | SOCKET handle; |
414 | #endif |
511 | #endif |
415 | } ANFD; |
512 | } ANFD; |
416 | |
513 | |
|
|
514 | /* stores the pending event set for a given watcher */ |
417 | typedef struct |
515 | typedef struct |
418 | { |
516 | { |
419 | W w; |
517 | W w; |
420 | int events; |
518 | int events; /* the pending event set for the given watcher */ |
421 | } ANPENDING; |
519 | } ANPENDING; |
422 | |
520 | |
423 | #if EV_USE_INOTIFY |
521 | #if EV_USE_INOTIFY |
|
|
522 | /* hash table entry per inotify-id */ |
424 | typedef struct |
523 | typedef struct |
425 | { |
524 | { |
426 | WL head; |
525 | WL head; |
427 | } ANFS; |
526 | } ANFS; |
|
|
527 | #endif |
|
|
528 | |
|
|
529 | /* Heap Entry */ |
|
|
530 | #if EV_HEAP_CACHE_AT |
|
|
531 | /* a heap element */ |
|
|
532 | typedef struct { |
|
|
533 | ev_tstamp at; |
|
|
534 | WT w; |
|
|
535 | } ANHE; |
|
|
536 | |
|
|
537 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
538 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
539 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
540 | #else |
|
|
541 | /* a heap element */ |
|
|
542 | typedef WT ANHE; |
|
|
543 | |
|
|
544 | #define ANHE_w(he) (he) |
|
|
545 | #define ANHE_at(he) (he)->at |
|
|
546 | #define ANHE_at_cache(he) |
428 | #endif |
547 | #endif |
429 | |
548 | |
430 | #if EV_MULTIPLICITY |
549 | #if EV_MULTIPLICITY |
431 | |
550 | |
432 | struct ev_loop |
551 | struct ev_loop |
… | |
… | |
451 | |
570 | |
452 | static int ev_default_loop_ptr; |
571 | static int ev_default_loop_ptr; |
453 | |
572 | |
454 | #endif |
573 | #endif |
455 | |
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 | |
456 | /*****************************************************************************/ |
587 | /*****************************************************************************/ |
457 | |
588 | |
|
|
589 | #ifndef EV_HAVE_EV_TIME |
458 | ev_tstamp |
590 | ev_tstamp |
459 | ev_time (void) |
591 | ev_time (void) |
460 | { |
592 | { |
461 | #if EV_USE_REALTIME |
593 | #if EV_USE_REALTIME |
|
|
594 | if (expect_true (have_realtime)) |
|
|
595 | { |
462 | struct timespec ts; |
596 | struct timespec ts; |
463 | clock_gettime (CLOCK_REALTIME, &ts); |
597 | clock_gettime (CLOCK_REALTIME, &ts); |
464 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
598 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
465 | #else |
599 | } |
|
|
600 | #endif |
|
|
601 | |
466 | struct timeval tv; |
602 | struct timeval tv; |
467 | gettimeofday (&tv, 0); |
603 | gettimeofday (&tv, 0); |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
604 | return tv.tv_sec + tv.tv_usec * 1e-6; |
469 | #endif |
|
|
470 | } |
605 | } |
|
|
606 | #endif |
471 | |
607 | |
472 | ev_tstamp inline_size |
608 | inline_size ev_tstamp |
473 | get_clock (void) |
609 | get_clock (void) |
474 | { |
610 | { |
475 | #if EV_USE_MONOTONIC |
611 | #if EV_USE_MONOTONIC |
476 | if (expect_true (have_monotonic)) |
612 | if (expect_true (have_monotonic)) |
477 | { |
613 | { |
… | |
… | |
510 | struct timeval tv; |
646 | struct timeval tv; |
511 | |
647 | |
512 | tv.tv_sec = (time_t)delay; |
648 | tv.tv_sec = (time_t)delay; |
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
649 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
514 | |
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 */ |
515 | select (0, 0, 0, 0, &tv); |
654 | select (0, 0, 0, 0, &tv); |
516 | #endif |
655 | #endif |
517 | } |
656 | } |
518 | } |
657 | } |
519 | |
658 | |
520 | /*****************************************************************************/ |
659 | /*****************************************************************************/ |
521 | |
660 | |
522 | int inline_size |
661 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
662 | |
|
|
663 | /* find a suitable new size for the given array, */ |
|
|
664 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
665 | inline_size int |
523 | array_nextsize (int elem, int cur, int cnt) |
666 | array_nextsize (int elem, int cur, int cnt) |
524 | { |
667 | { |
525 | int ncur = cur + 1; |
668 | int ncur = cur + 1; |
526 | |
669 | |
527 | do |
670 | do |
528 | ncur <<= 1; |
671 | ncur <<= 1; |
529 | while (cnt > ncur); |
672 | while (cnt > ncur); |
530 | |
673 | |
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
674 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
532 | if (elem * ncur > 4096) |
675 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
533 | { |
676 | { |
534 | ncur *= elem; |
677 | ncur *= elem; |
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
678 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
536 | ncur = ncur - sizeof (void *) * 4; |
679 | ncur = ncur - sizeof (void *) * 4; |
537 | ncur /= elem; |
680 | ncur /= elem; |
538 | } |
681 | } |
539 | |
682 | |
540 | return ncur; |
683 | return ncur; |
… | |
… | |
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
687 | array_realloc (int elem, void *base, int *cur, int cnt) |
545 | { |
688 | { |
546 | *cur = array_nextsize (elem, *cur, cnt); |
689 | *cur = array_nextsize (elem, *cur, cnt); |
547 | return ev_realloc (base, elem * *cur); |
690 | return ev_realloc (base, elem * *cur); |
548 | } |
691 | } |
|
|
692 | |
|
|
693 | #define array_init_zero(base,count) \ |
|
|
694 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
549 | |
695 | |
550 | #define array_needsize(type,base,cur,cnt,init) \ |
696 | #define array_needsize(type,base,cur,cnt,init) \ |
551 | if (expect_false ((cnt) > (cur))) \ |
697 | if (expect_false ((cnt) > (cur))) \ |
552 | { \ |
698 | { \ |
553 | int ocur_ = (cur); \ |
699 | int ocur_ = (cur); \ |
… | |
… | |
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
711 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
566 | } |
712 | } |
567 | #endif |
713 | #endif |
568 | |
714 | |
569 | #define array_free(stem, idx) \ |
715 | #define array_free(stem, idx) \ |
570 | 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 |
571 | |
717 | |
572 | /*****************************************************************************/ |
718 | /*****************************************************************************/ |
|
|
719 | |
|
|
720 | /* dummy callback for pending events */ |
|
|
721 | static void noinline |
|
|
722 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
723 | { |
|
|
724 | } |
573 | |
725 | |
574 | void noinline |
726 | void noinline |
575 | ev_feed_event (EV_P_ void *w, int revents) |
727 | ev_feed_event (EV_P_ void *w, int revents) |
576 | { |
728 | { |
577 | W w_ = (W)w; |
729 | W w_ = (W)w; |
… | |
… | |
586 | pendings [pri][w_->pending - 1].w = w_; |
738 | pendings [pri][w_->pending - 1].w = w_; |
587 | pendings [pri][w_->pending - 1].events = revents; |
739 | pendings [pri][w_->pending - 1].events = revents; |
588 | } |
740 | } |
589 | } |
741 | } |
590 | |
742 | |
591 | 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 |
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
759 | queue_events (EV_P_ W *events, int eventcnt, int type) |
593 | { |
760 | { |
594 | int i; |
761 | int i; |
595 | |
762 | |
596 | for (i = 0; i < eventcnt; ++i) |
763 | for (i = 0; i < eventcnt; ++i) |
597 | ev_feed_event (EV_A_ events [i], type); |
764 | ev_feed_event (EV_A_ events [i], type); |
598 | } |
765 | } |
599 | |
766 | |
600 | /*****************************************************************************/ |
767 | /*****************************************************************************/ |
601 | |
768 | |
602 | void inline_size |
769 | inline_speed void |
603 | anfds_init (ANFD *base, int count) |
|
|
604 | { |
|
|
605 | while (count--) |
|
|
606 | { |
|
|
607 | base->head = 0; |
|
|
608 | base->events = EV_NONE; |
|
|
609 | base->reify = 0; |
|
|
610 | |
|
|
611 | ++base; |
|
|
612 | } |
|
|
613 | } |
|
|
614 | |
|
|
615 | void inline_speed |
|
|
616 | fd_event (EV_P_ int fd, int revents) |
770 | fd_event_nc (EV_P_ int fd, int revents) |
617 | { |
771 | { |
618 | ANFD *anfd = anfds + fd; |
772 | ANFD *anfd = anfds + fd; |
619 | ev_io *w; |
773 | ev_io *w; |
620 | |
774 | |
621 | 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) |
… | |
… | |
625 | if (ev) |
779 | if (ev) |
626 | ev_feed_event (EV_A_ (W)w, ev); |
780 | ev_feed_event (EV_A_ (W)w, ev); |
627 | } |
781 | } |
628 | } |
782 | } |
629 | |
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 | |
630 | void |
795 | void |
631 | ev_feed_fd_event (EV_P_ int fd, int revents) |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
632 | { |
797 | { |
633 | if (fd >= 0 && fd < anfdmax) |
798 | if (fd >= 0 && fd < anfdmax) |
634 | fd_event (EV_A_ fd, revents); |
799 | fd_event_nc (EV_A_ fd, revents); |
635 | } |
800 | } |
636 | |
801 | |
637 | 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 |
638 | fd_reify (EV_P) |
805 | fd_reify (EV_P) |
639 | { |
806 | { |
640 | int i; |
807 | int i; |
641 | |
808 | |
642 | for (i = 0; i < fdchangecnt; ++i) |
809 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
651 | events |= (unsigned char)w->events; |
818 | events |= (unsigned char)w->events; |
652 | |
819 | |
653 | #if EV_SELECT_IS_WINSOCKET |
820 | #if EV_SELECT_IS_WINSOCKET |
654 | if (events) |
821 | if (events) |
655 | { |
822 | { |
656 | unsigned long argp; |
823 | unsigned long arg; |
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
659 | #else |
826 | #else |
660 | anfd->handle = _get_osfhandle (fd); |
827 | anfd->handle = _get_osfhandle (fd); |
661 | #endif |
828 | #endif |
662 | 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)); |
663 | } |
830 | } |
664 | #endif |
831 | #endif |
665 | |
832 | |
666 | { |
833 | { |
667 | unsigned char o_events = anfd->events; |
834 | unsigned char o_events = anfd->events; |
668 | unsigned char o_reify = anfd->reify; |
835 | unsigned char o_reify = anfd->reify; |
669 | |
836 | |
670 | anfd->reify = 0; |
837 | anfd->reify = 0; |
671 | anfd->events = events; |
838 | anfd->events = events; |
672 | |
839 | |
673 | if (o_events != events || o_reify & EV_IOFDSET) |
840 | if (o_events != events || o_reify & EV__IOFDSET) |
674 | backend_modify (EV_A_ fd, o_events, events); |
841 | backend_modify (EV_A_ fd, o_events, events); |
675 | } |
842 | } |
676 | } |
843 | } |
677 | |
844 | |
678 | fdchangecnt = 0; |
845 | fdchangecnt = 0; |
679 | } |
846 | } |
680 | |
847 | |
681 | void inline_size |
848 | /* something about the given fd changed */ |
|
|
849 | inline_size void |
682 | fd_change (EV_P_ int fd, int flags) |
850 | fd_change (EV_P_ int fd, int flags) |
683 | { |
851 | { |
684 | unsigned char reify = anfds [fd].reify; |
852 | unsigned char reify = anfds [fd].reify; |
685 | anfds [fd].reify |= flags; |
853 | anfds [fd].reify |= flags; |
686 | |
854 | |
… | |
… | |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
858 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
691 | fdchanges [fdchangecnt - 1] = fd; |
859 | fdchanges [fdchangecnt - 1] = fd; |
692 | } |
860 | } |
693 | } |
861 | } |
694 | |
862 | |
695 | void inline_speed |
863 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
864 | inline_speed void |
696 | fd_kill (EV_P_ int fd) |
865 | fd_kill (EV_P_ int fd) |
697 | { |
866 | { |
698 | ev_io *w; |
867 | ev_io *w; |
699 | |
868 | |
700 | while ((w = (ev_io *)anfds [fd].head)) |
869 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
702 | ev_io_stop (EV_A_ w); |
871 | ev_io_stop (EV_A_ w); |
703 | 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); |
704 | } |
873 | } |
705 | } |
874 | } |
706 | |
875 | |
707 | int inline_size |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
877 | inline_size int |
708 | fd_valid (int fd) |
878 | fd_valid (int fd) |
709 | { |
879 | { |
710 | #ifdef _WIN32 |
880 | #ifdef _WIN32 |
711 | return _get_osfhandle (fd) != -1; |
881 | return _get_osfhandle (fd) != -1; |
712 | #else |
882 | #else |
… | |
… | |
720 | { |
890 | { |
721 | int fd; |
891 | int fd; |
722 | |
892 | |
723 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
724 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
895 | if (!fd_valid (fd) && errno == EBADF) |
726 | fd_kill (EV_A_ fd); |
896 | fd_kill (EV_A_ fd); |
727 | } |
897 | } |
728 | |
898 | |
729 | /* 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 */ |
730 | static void noinline |
900 | static void noinline |
… | |
… | |
748 | |
918 | |
749 | for (fd = 0; fd < anfdmax; ++fd) |
919 | for (fd = 0; fd < anfdmax; ++fd) |
750 | if (anfds [fd].events) |
920 | if (anfds [fd].events) |
751 | { |
921 | { |
752 | anfds [fd].events = 0; |
922 | anfds [fd].events = 0; |
|
|
923 | anfds [fd].emask = 0; |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
754 | } |
925 | } |
755 | } |
926 | } |
756 | |
927 | |
757 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
758 | |
929 | |
759 | void inline_speed |
930 | /* |
760 | upheap (WT *heap, int k) |
931 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
761 | { |
932 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
762 | WT w = heap [k]; |
933 | * the branching factor of the d-tree. |
|
|
934 | */ |
763 | |
935 | |
764 | while (k) |
936 | /* |
765 | { |
937 | * at the moment we allow libev the luxury of two heaps, |
766 | int p = (k - 1) >> 1; |
938 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
939 | * which is more cache-efficient. |
|
|
940 | * the difference is about 5% with 50000+ watchers. |
|
|
941 | */ |
|
|
942 | #if EV_USE_4HEAP |
767 | |
943 | |
768 | if (heap [p]->at <= w->at) |
944 | #define DHEAP 4 |
|
|
945 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
946 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
947 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
948 | |
|
|
949 | /* away from the root */ |
|
|
950 | inline_speed void |
|
|
951 | downheap (ANHE *heap, int N, int k) |
|
|
952 | { |
|
|
953 | ANHE he = heap [k]; |
|
|
954 | ANHE *E = heap + N + HEAP0; |
|
|
955 | |
|
|
956 | for (;;) |
|
|
957 | { |
|
|
958 | ev_tstamp minat; |
|
|
959 | ANHE *minpos; |
|
|
960 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
961 | |
|
|
962 | /* find minimum child */ |
|
|
963 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
964 | { |
|
|
965 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
966 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
967 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
968 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
969 | } |
|
|
970 | else if (pos < E) |
|
|
971 | { |
|
|
972 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
973 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
974 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
975 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
976 | } |
|
|
977 | else |
769 | break; |
978 | break; |
770 | |
979 | |
|
|
980 | if (ANHE_at (he) <= minat) |
|
|
981 | break; |
|
|
982 | |
|
|
983 | heap [k] = *minpos; |
|
|
984 | ev_active (ANHE_w (*minpos)) = k; |
|
|
985 | |
|
|
986 | k = minpos - heap; |
|
|
987 | } |
|
|
988 | |
|
|
989 | heap [k] = he; |
|
|
990 | ev_active (ANHE_w (he)) = k; |
|
|
991 | } |
|
|
992 | |
|
|
993 | #else /* 4HEAP */ |
|
|
994 | |
|
|
995 | #define HEAP0 1 |
|
|
996 | #define HPARENT(k) ((k) >> 1) |
|
|
997 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
998 | |
|
|
999 | /* away from the root */ |
|
|
1000 | inline_speed void |
|
|
1001 | downheap (ANHE *heap, int N, int k) |
|
|
1002 | { |
|
|
1003 | ANHE he = heap [k]; |
|
|
1004 | |
|
|
1005 | for (;;) |
|
|
1006 | { |
|
|
1007 | int c = k << 1; |
|
|
1008 | |
|
|
1009 | if (c > N + HEAP0 - 1) |
|
|
1010 | break; |
|
|
1011 | |
|
|
1012 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1013 | ? 1 : 0; |
|
|
1014 | |
|
|
1015 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1016 | break; |
|
|
1017 | |
|
|
1018 | heap [k] = heap [c]; |
|
|
1019 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1020 | |
|
|
1021 | k = c; |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | heap [k] = he; |
|
|
1025 | ev_active (ANHE_w (he)) = k; |
|
|
1026 | } |
|
|
1027 | #endif |
|
|
1028 | |
|
|
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 | |
771 | heap [k] = heap [p]; |
1042 | heap [k] = heap [p]; |
772 | ((W)heap [k])->active = k + 1; |
1043 | ev_active (ANHE_w (heap [k])) = k; |
773 | k = p; |
1044 | k = p; |
774 | } |
1045 | } |
775 | |
1046 | |
776 | heap [k] = w; |
1047 | heap [k] = he; |
777 | ((W)heap [k])->active = k + 1; |
1048 | ev_active (ANHE_w (he)) = k; |
778 | } |
1049 | } |
779 | |
1050 | |
780 | void inline_speed |
1051 | /* move an element suitably so it is in a correct place */ |
781 | downheap (WT *heap, int N, int k) |
1052 | inline_size void |
782 | { |
|
|
783 | WT w = heap [k]; |
|
|
784 | |
|
|
785 | for (;;) |
|
|
786 | { |
|
|
787 | int c = (k << 1) + 1; |
|
|
788 | |
|
|
789 | if (c >= N) |
|
|
790 | break; |
|
|
791 | |
|
|
792 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
793 | ? 1 : 0; |
|
|
794 | |
|
|
795 | if (w->at <= heap [c]->at) |
|
|
796 | break; |
|
|
797 | |
|
|
798 | heap [k] = heap [c]; |
|
|
799 | ((W)heap [k])->active = k + 1; |
|
|
800 | |
|
|
801 | k = c; |
|
|
802 | } |
|
|
803 | |
|
|
804 | heap [k] = w; |
|
|
805 | ((W)heap [k])->active = k + 1; |
|
|
806 | } |
|
|
807 | |
|
|
808 | void inline_size |
|
|
809 | adjustheap (WT *heap, int N, int k) |
1053 | adjustheap (ANHE *heap, int N, int k) |
810 | { |
1054 | { |
|
|
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
811 | upheap (heap, k); |
1056 | upheap (heap, k); |
|
|
1057 | else |
812 | 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); |
813 | } |
1071 | } |
814 | |
1072 | |
815 | /*****************************************************************************/ |
1073 | /*****************************************************************************/ |
816 | |
1074 | |
|
|
1075 | /* associate signal watchers to a signal signal */ |
817 | typedef struct |
1076 | typedef struct |
818 | { |
1077 | { |
819 | WL head; |
1078 | WL head; |
820 | EV_ATOMIC_T gotsig; |
1079 | EV_ATOMIC_T gotsig; |
821 | } ANSIG; |
1080 | } ANSIG; |
… | |
… | |
823 | static ANSIG *signals; |
1082 | static ANSIG *signals; |
824 | static int signalmax; |
1083 | static int signalmax; |
825 | |
1084 | |
826 | static EV_ATOMIC_T gotsig; |
1085 | static EV_ATOMIC_T gotsig; |
827 | |
1086 | |
828 | void inline_size |
|
|
829 | signals_init (ANSIG *base, int count) |
|
|
830 | { |
|
|
831 | while (count--) |
|
|
832 | { |
|
|
833 | base->head = 0; |
|
|
834 | base->gotsig = 0; |
|
|
835 | |
|
|
836 | ++base; |
|
|
837 | } |
|
|
838 | } |
|
|
839 | |
|
|
840 | /*****************************************************************************/ |
1087 | /*****************************************************************************/ |
841 | |
1088 | |
842 | void inline_speed |
1089 | /* used to prepare libev internal fd's */ |
|
|
1090 | /* this is not fork-safe */ |
|
|
1091 | inline_speed void |
843 | fd_intern (int fd) |
1092 | fd_intern (int fd) |
844 | { |
1093 | { |
845 | #ifdef _WIN32 |
1094 | #ifdef _WIN32 |
846 | int arg = 1; |
1095 | unsigned long arg = 1; |
847 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
848 | #else |
1097 | #else |
849 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
851 | #endif |
1100 | #endif |
852 | } |
1101 | } |
853 | |
1102 | |
854 | static void noinline |
1103 | static void noinline |
855 | evpipe_init (EV_P) |
1104 | evpipe_init (EV_P) |
856 | { |
1105 | { |
857 | if (!ev_is_active (&pipeev)) |
1106 | if (!ev_is_active (&pipe_w)) |
858 | { |
1107 | { |
859 | #if EV_USE_EVENTFD |
1108 | #if EV_USE_EVENTFD |
860 | if ((evfd = eventfd (0, 0)) >= 0) |
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
861 | { |
1110 | { |
862 | evpipe [0] = -1; |
1111 | evpipe [0] = -1; |
863 | fd_intern (evfd); |
1112 | fd_intern (evfd); |
864 | ev_io_set (&pipeev, evfd, EV_READ); |
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
865 | } |
1114 | } |
866 | else |
1115 | else |
867 | #endif |
1116 | #endif |
868 | { |
1117 | { |
869 | while (pipe (evpipe)) |
1118 | while (pipe (evpipe)) |
870 | syserr ("(libev) error creating signal/async pipe"); |
1119 | ev_syserr ("(libev) error creating signal/async pipe"); |
871 | |
1120 | |
872 | fd_intern (evpipe [0]); |
1121 | fd_intern (evpipe [0]); |
873 | fd_intern (evpipe [1]); |
1122 | fd_intern (evpipe [1]); |
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1123 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
875 | } |
1124 | } |
876 | |
1125 | |
877 | ev_io_start (EV_A_ &pipeev); |
1126 | ev_io_start (EV_A_ &pipe_w); |
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1127 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
879 | } |
1128 | } |
880 | } |
1129 | } |
881 | |
1130 | |
882 | void inline_size |
1131 | inline_size void |
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1132 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
884 | { |
1133 | { |
885 | if (!*flag) |
1134 | if (!*flag) |
886 | { |
1135 | { |
887 | int old_errno = errno; /* save errno because write might clobber it */ |
1136 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
900 | |
1149 | |
901 | errno = old_errno; |
1150 | errno = old_errno; |
902 | } |
1151 | } |
903 | } |
1152 | } |
904 | |
1153 | |
|
|
1154 | /* called whenever the libev signal pipe */ |
|
|
1155 | /* got some events (signal, async) */ |
905 | static void |
1156 | static void |
906 | pipecb (EV_P_ ev_io *iow, int revents) |
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
907 | { |
1158 | { |
908 | #if EV_USE_EVENTFD |
1159 | #if EV_USE_EVENTFD |
909 | if (evfd >= 0) |
1160 | if (evfd >= 0) |
910 | { |
1161 | { |
911 | uint64_t counter = 1; |
1162 | uint64_t counter; |
912 | read (evfd, &counter, sizeof (uint64_t)); |
1163 | read (evfd, &counter, sizeof (uint64_t)); |
913 | } |
1164 | } |
914 | else |
1165 | else |
915 | #endif |
1166 | #endif |
916 | { |
1167 | { |
… | |
… | |
965 | ev_feed_signal_event (EV_P_ int signum) |
1216 | ev_feed_signal_event (EV_P_ int signum) |
966 | { |
1217 | { |
967 | WL w; |
1218 | WL w; |
968 | |
1219 | |
969 | #if EV_MULTIPLICITY |
1220 | #if EV_MULTIPLICITY |
970 | 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)); |
971 | #endif |
1222 | #endif |
972 | |
1223 | |
973 | --signum; |
1224 | --signum; |
974 | |
1225 | |
975 | if (signum < 0 || signum >= signalmax) |
1226 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
991 | |
1242 | |
992 | #ifndef WIFCONTINUED |
1243 | #ifndef WIFCONTINUED |
993 | # define WIFCONTINUED(status) 0 |
1244 | # define WIFCONTINUED(status) 0 |
994 | #endif |
1245 | #endif |
995 | |
1246 | |
996 | void inline_speed |
1247 | /* handle a single child status event */ |
|
|
1248 | inline_speed void |
997 | child_reap (EV_P_ int chain, int pid, int status) |
1249 | child_reap (EV_P_ int chain, int pid, int status) |
998 | { |
1250 | { |
999 | ev_child *w; |
1251 | ev_child *w; |
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1252 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1001 | |
1253 | |
… | |
… | |
1014 | |
1266 | |
1015 | #ifndef WCONTINUED |
1267 | #ifndef WCONTINUED |
1016 | # define WCONTINUED 0 |
1268 | # define WCONTINUED 0 |
1017 | #endif |
1269 | #endif |
1018 | |
1270 | |
|
|
1271 | /* called on sigchld etc., calls waitpid */ |
1019 | static void |
1272 | static void |
1020 | childcb (EV_P_ ev_signal *sw, int revents) |
1273 | childcb (EV_P_ ev_signal *sw, int revents) |
1021 | { |
1274 | { |
1022 | int pid, status; |
1275 | int pid, status; |
1023 | |
1276 | |
… | |
… | |
1104 | /* kqueue is borked on everything but netbsd apparently */ |
1357 | /* kqueue is borked on everything but netbsd apparently */ |
1105 | /* 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 */ |
1106 | flags &= ~EVBACKEND_KQUEUE; |
1359 | flags &= ~EVBACKEND_KQUEUE; |
1107 | #endif |
1360 | #endif |
1108 | #ifdef __APPLE__ |
1361 | #ifdef __APPLE__ |
1109 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1362 | /* only select works correctly on that "unix-certified" platform */ |
1110 | 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 */ |
1111 | #endif |
1365 | #endif |
1112 | |
1366 | |
1113 | return flags; |
1367 | return flags; |
1114 | } |
1368 | } |
1115 | |
1369 | |
… | |
… | |
1129 | ev_backend (EV_P) |
1383 | ev_backend (EV_P) |
1130 | { |
1384 | { |
1131 | return backend; |
1385 | return backend; |
1132 | } |
1386 | } |
1133 | |
1387 | |
|
|
1388 | #if EV_MINIMAL < 2 |
1134 | unsigned int |
1389 | unsigned int |
1135 | ev_loop_count (EV_P) |
1390 | ev_loop_count (EV_P) |
1136 | { |
1391 | { |
1137 | return loop_count; |
1392 | return loop_count; |
1138 | } |
1393 | } |
1139 | |
1394 | |
|
|
1395 | unsigned int |
|
|
1396 | ev_loop_depth (EV_P) |
|
|
1397 | { |
|
|
1398 | return loop_depth; |
|
|
1399 | } |
|
|
1400 | |
1140 | void |
1401 | void |
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1402 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1142 | { |
1403 | { |
1143 | io_blocktime = interval; |
1404 | io_blocktime = interval; |
1144 | } |
1405 | } |
… | |
… | |
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1408 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1148 | { |
1409 | { |
1149 | timeout_blocktime = interval; |
1410 | timeout_blocktime = interval; |
1150 | } |
1411 | } |
1151 | |
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 */ |
1152 | static void noinline |
1438 | static void noinline |
1153 | loop_init (EV_P_ unsigned int flags) |
1439 | loop_init (EV_P_ unsigned int flags) |
1154 | { |
1440 | { |
1155 | if (!backend) |
1441 | if (!backend) |
1156 | { |
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 | |
1157 | #if EV_USE_MONOTONIC |
1453 | #if EV_USE_MONOTONIC |
|
|
1454 | if (!have_monotonic) |
1158 | { |
1455 | { |
1159 | struct timespec ts; |
1456 | struct timespec ts; |
|
|
1457 | |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1161 | have_monotonic = 1; |
1459 | have_monotonic = 1; |
1162 | } |
1460 | } |
1163 | #endif |
1461 | #endif |
1164 | |
1462 | |
1165 | ev_rt_now = ev_time (); |
1463 | ev_rt_now = ev_time (); |
1166 | mn_now = get_clock (); |
1464 | mn_now = get_clock (); |
1167 | now_floor = mn_now; |
1465 | now_floor = mn_now; |
1168 | 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 |
1169 | |
1470 | |
1170 | io_blocktime = 0.; |
1471 | io_blocktime = 0.; |
1171 | timeout_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1172 | backend = 0; |
1473 | backend = 0; |
1173 | backend_fd = -1; |
1474 | backend_fd = -1; |
… | |
… | |
1204 | #endif |
1505 | #endif |
1205 | #if EV_USE_SELECT |
1506 | #if EV_USE_SELECT |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1507 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1207 | #endif |
1508 | #endif |
1208 | |
1509 | |
|
|
1510 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1511 | |
1209 | ev_init (&pipeev, pipecb); |
1512 | ev_init (&pipe_w, pipecb); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
1513 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1211 | } |
1514 | } |
1212 | } |
1515 | } |
1213 | |
1516 | |
|
|
1517 | /* free up a loop structure */ |
1214 | static void noinline |
1518 | static void noinline |
1215 | loop_destroy (EV_P) |
1519 | loop_destroy (EV_P) |
1216 | { |
1520 | { |
1217 | int i; |
1521 | int i; |
1218 | |
1522 | |
1219 | if (ev_is_active (&pipeev)) |
1523 | if (ev_is_active (&pipe_w)) |
1220 | { |
1524 | { |
1221 | ev_ref (EV_A); /* signal watcher */ |
1525 | ev_ref (EV_A); /* signal watcher */ |
1222 | ev_io_stop (EV_A_ &pipeev); |
1526 | ev_io_stop (EV_A_ &pipe_w); |
1223 | |
1527 | |
1224 | #if EV_USE_EVENTFD |
1528 | #if EV_USE_EVENTFD |
1225 | if (evfd >= 0) |
1529 | if (evfd >= 0) |
1226 | close (evfd); |
1530 | close (evfd); |
1227 | #endif |
1531 | #endif |
… | |
… | |
1266 | } |
1570 | } |
1267 | |
1571 | |
1268 | ev_free (anfds); anfdmax = 0; |
1572 | ev_free (anfds); anfdmax = 0; |
1269 | |
1573 | |
1270 | /* 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); |
1271 | array_free (fdchange, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1272 | array_free (timer, EMPTY); |
1577 | array_free (timer, EMPTY); |
1273 | #if EV_PERIODIC_ENABLE |
1578 | #if EV_PERIODIC_ENABLE |
1274 | array_free (periodic, EMPTY); |
1579 | array_free (periodic, EMPTY); |
1275 | #endif |
1580 | #endif |
… | |
… | |
1284 | |
1589 | |
1285 | backend = 0; |
1590 | backend = 0; |
1286 | } |
1591 | } |
1287 | |
1592 | |
1288 | #if EV_USE_INOTIFY |
1593 | #if EV_USE_INOTIFY |
1289 | void inline_size infy_fork (EV_P); |
1594 | inline_size void infy_fork (EV_P); |
1290 | #endif |
1595 | #endif |
1291 | |
1596 | |
1292 | void inline_size |
1597 | inline_size void |
1293 | loop_fork (EV_P) |
1598 | loop_fork (EV_P) |
1294 | { |
1599 | { |
1295 | #if EV_USE_PORT |
1600 | #if EV_USE_PORT |
1296 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1601 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1297 | #endif |
1602 | #endif |
… | |
… | |
1303 | #endif |
1608 | #endif |
1304 | #if EV_USE_INOTIFY |
1609 | #if EV_USE_INOTIFY |
1305 | infy_fork (EV_A); |
1610 | infy_fork (EV_A); |
1306 | #endif |
1611 | #endif |
1307 | |
1612 | |
1308 | if (ev_is_active (&pipeev)) |
1613 | if (ev_is_active (&pipe_w)) |
1309 | { |
1614 | { |
1310 | /* this "locks" the handlers against writing to the pipe */ |
1615 | /* this "locks" the handlers against writing to the pipe */ |
1311 | /* while we modify the fd vars */ |
1616 | /* while we modify the fd vars */ |
1312 | gotsig = 1; |
1617 | gotsig = 1; |
1313 | #if EV_ASYNC_ENABLE |
1618 | #if EV_ASYNC_ENABLE |
1314 | gotasync = 1; |
1619 | gotasync = 1; |
1315 | #endif |
1620 | #endif |
1316 | |
1621 | |
1317 | ev_ref (EV_A); |
1622 | ev_ref (EV_A); |
1318 | ev_io_stop (EV_A_ &pipeev); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
1319 | |
1624 | |
1320 | #if EV_USE_EVENTFD |
1625 | #if EV_USE_EVENTFD |
1321 | if (evfd >= 0) |
1626 | if (evfd >= 0) |
1322 | close (evfd); |
1627 | close (evfd); |
1323 | #endif |
1628 | #endif |
… | |
… | |
1328 | close (evpipe [1]); |
1633 | close (evpipe [1]); |
1329 | } |
1634 | } |
1330 | |
1635 | |
1331 | evpipe_init (EV_A); |
1636 | evpipe_init (EV_A); |
1332 | /* now iterate over everything, in case we missed something */ |
1637 | /* now iterate over everything, in case we missed something */ |
1333 | pipecb (EV_A_ &pipeev, EV_READ); |
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1334 | } |
1639 | } |
1335 | |
1640 | |
1336 | postfork = 0; |
1641 | postfork = 0; |
1337 | } |
1642 | } |
1338 | |
1643 | |
1339 | #if EV_MULTIPLICITY |
1644 | #if EV_MULTIPLICITY |
|
|
1645 | |
1340 | struct ev_loop * |
1646 | struct ev_loop * |
1341 | ev_loop_new (unsigned int flags) |
1647 | ev_loop_new (unsigned int flags) |
1342 | { |
1648 | { |
1343 | 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)); |
1344 | |
1650 | |
… | |
… | |
1362 | void |
1668 | void |
1363 | ev_loop_fork (EV_P) |
1669 | ev_loop_fork (EV_P) |
1364 | { |
1670 | { |
1365 | postfork = 1; /* must be in line with ev_default_fork */ |
1671 | postfork = 1; /* must be in line with ev_default_fork */ |
1366 | } |
1672 | } |
|
|
1673 | #endif /* multiplicity */ |
1367 | |
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 |
|
|
1773 | } |
1368 | #endif |
1774 | #endif |
1369 | |
1775 | |
1370 | #if EV_MULTIPLICITY |
1776 | #if EV_MULTIPLICITY |
1371 | struct ev_loop * |
1777 | struct ev_loop * |
1372 | ev_default_loop_init (unsigned int flags) |
1778 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1406 | { |
1812 | { |
1407 | #if EV_MULTIPLICITY |
1813 | #if EV_MULTIPLICITY |
1408 | struct ev_loop *loop = ev_default_loop_ptr; |
1814 | struct ev_loop *loop = ev_default_loop_ptr; |
1409 | #endif |
1815 | #endif |
1410 | |
1816 | |
|
|
1817 | ev_default_loop_ptr = 0; |
|
|
1818 | |
1411 | #ifndef _WIN32 |
1819 | #ifndef _WIN32 |
1412 | ev_ref (EV_A); /* child watcher */ |
1820 | ev_ref (EV_A); /* child watcher */ |
1413 | ev_signal_stop (EV_A_ &childev); |
1821 | ev_signal_stop (EV_A_ &childev); |
1414 | #endif |
1822 | #endif |
1415 | |
1823 | |
… | |
… | |
1421 | { |
1829 | { |
1422 | #if EV_MULTIPLICITY |
1830 | #if EV_MULTIPLICITY |
1423 | struct ev_loop *loop = ev_default_loop_ptr; |
1831 | struct ev_loop *loop = ev_default_loop_ptr; |
1424 | #endif |
1832 | #endif |
1425 | |
1833 | |
1426 | if (backend) |
|
|
1427 | postfork = 1; /* must be in line with ev_loop_fork */ |
1834 | postfork = 1; /* must be in line with ev_loop_fork */ |
1428 | } |
1835 | } |
1429 | |
1836 | |
1430 | /*****************************************************************************/ |
1837 | /*****************************************************************************/ |
1431 | |
1838 | |
1432 | void |
1839 | void |
1433 | ev_invoke (EV_P_ void *w, int revents) |
1840 | ev_invoke (EV_P_ void *w, int revents) |
1434 | { |
1841 | { |
1435 | EV_CB_INVOKE ((W)w, revents); |
1842 | EV_CB_INVOKE ((W)w, revents); |
1436 | } |
1843 | } |
1437 | |
1844 | |
1438 | void inline_speed |
1845 | void noinline |
1439 | call_pending (EV_P) |
1846 | ev_invoke_pending (EV_P) |
1440 | { |
1847 | { |
1441 | int pri; |
1848 | int pri; |
1442 | |
1849 | |
1443 | for (pri = NUMPRI; pri--; ) |
1850 | for (pri = NUMPRI; pri--; ) |
1444 | while (pendingcnt [pri]) |
1851 | while (pendingcnt [pri]) |
1445 | { |
1852 | { |
1446 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1853 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1447 | |
1854 | |
1448 | if (expect_true (p->w)) |
|
|
1449 | { |
|
|
1450 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1855 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1856 | /* ^ this is no longer true, as pending_w could be here */ |
1451 | |
1857 | |
1452 | p->w->pending = 0; |
1858 | p->w->pending = 0; |
1453 | EV_CB_INVOKE (p->w, p->events); |
1859 | EV_CB_INVOKE (p->w, p->events); |
1454 | } |
1860 | EV_FREQUENT_CHECK; |
1455 | } |
1861 | } |
1456 | } |
1862 | } |
1457 | |
1863 | |
1458 | void inline_size |
|
|
1459 | timers_reify (EV_P) |
|
|
1460 | { |
|
|
1461 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1462 | { |
|
|
1463 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1464 | |
|
|
1465 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1466 | |
|
|
1467 | /* first reschedule or stop timer */ |
|
|
1468 | if (w->repeat) |
|
|
1469 | { |
|
|
1470 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1471 | |
|
|
1472 | ((WT)w)->at += w->repeat; |
|
|
1473 | if (((WT)w)->at < mn_now) |
|
|
1474 | ((WT)w)->at = mn_now; |
|
|
1475 | |
|
|
1476 | downheap (timers, timercnt, 0); |
|
|
1477 | } |
|
|
1478 | else |
|
|
1479 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1480 | |
|
|
1481 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1482 | } |
|
|
1483 | } |
|
|
1484 | |
|
|
1485 | #if EV_PERIODIC_ENABLE |
|
|
1486 | void inline_size |
|
|
1487 | periodics_reify (EV_P) |
|
|
1488 | { |
|
|
1489 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1490 | { |
|
|
1491 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1492 | |
|
|
1493 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1494 | |
|
|
1495 | /* first reschedule or stop timer */ |
|
|
1496 | if (w->reschedule_cb) |
|
|
1497 | { |
|
|
1498 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1499 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1500 | downheap (periodics, periodiccnt, 0); |
|
|
1501 | } |
|
|
1502 | else if (w->interval) |
|
|
1503 | { |
|
|
1504 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1505 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1506 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1507 | downheap (periodics, periodiccnt, 0); |
|
|
1508 | } |
|
|
1509 | else |
|
|
1510 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1511 | |
|
|
1512 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1513 | } |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | static void noinline |
|
|
1517 | periodics_reschedule (EV_P) |
|
|
1518 | { |
|
|
1519 | int i; |
|
|
1520 | |
|
|
1521 | /* adjust periodics after time jump */ |
|
|
1522 | for (i = 0; i < periodiccnt; ++i) |
|
|
1523 | { |
|
|
1524 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1525 | |
|
|
1526 | if (w->reschedule_cb) |
|
|
1527 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1528 | else if (w->interval) |
|
|
1529 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1530 | } |
|
|
1531 | |
|
|
1532 | /* now rebuild the heap */ |
|
|
1533 | for (i = periodiccnt >> 1; i--; ) |
|
|
1534 | downheap (periodics, periodiccnt, i); |
|
|
1535 | } |
|
|
1536 | #endif |
|
|
1537 | |
|
|
1538 | #if EV_IDLE_ENABLE |
1864 | #if EV_IDLE_ENABLE |
1539 | void inline_size |
1865 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1866 | /* only when higher priorities are idle" logic */ |
|
|
1867 | inline_size void |
1540 | idle_reify (EV_P) |
1868 | idle_reify (EV_P) |
1541 | { |
1869 | { |
1542 | if (expect_false (idleall)) |
1870 | if (expect_false (idleall)) |
1543 | { |
1871 | { |
1544 | int pri; |
1872 | int pri; |
… | |
… | |
1556 | } |
1884 | } |
1557 | } |
1885 | } |
1558 | } |
1886 | } |
1559 | #endif |
1887 | #endif |
1560 | |
1888 | |
1561 | void inline_speed |
1889 | /* make timers pending */ |
|
|
1890 | inline_size void |
|
|
1891 | timers_reify (EV_P) |
|
|
1892 | { |
|
|
1893 | EV_FREQUENT_CHECK; |
|
|
1894 | |
|
|
1895 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1896 | { |
|
|
1897 | do |
|
|
1898 | { |
|
|
1899 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1900 | |
|
|
1901 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1902 | |
|
|
1903 | /* first reschedule or stop timer */ |
|
|
1904 | if (w->repeat) |
|
|
1905 | { |
|
|
1906 | ev_at (w) += w->repeat; |
|
|
1907 | if (ev_at (w) < mn_now) |
|
|
1908 | ev_at (w) = mn_now; |
|
|
1909 | |
|
|
1910 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1911 | |
|
|
1912 | ANHE_at_cache (timers [HEAP0]); |
|
|
1913 | downheap (timers, timercnt, HEAP0); |
|
|
1914 | } |
|
|
1915 | else |
|
|
1916 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1917 | |
|
|
1918 | EV_FREQUENT_CHECK; |
|
|
1919 | feed_reverse (EV_A_ (W)w); |
|
|
1920 | } |
|
|
1921 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
1922 | |
|
|
1923 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
1924 | } |
|
|
1925 | } |
|
|
1926 | |
|
|
1927 | #if EV_PERIODIC_ENABLE |
|
|
1928 | /* make periodics pending */ |
|
|
1929 | inline_size void |
|
|
1930 | periodics_reify (EV_P) |
|
|
1931 | { |
|
|
1932 | EV_FREQUENT_CHECK; |
|
|
1933 | |
|
|
1934 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1935 | { |
|
|
1936 | int feed_count = 0; |
|
|
1937 | |
|
|
1938 | do |
|
|
1939 | { |
|
|
1940 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1941 | |
|
|
1942 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1943 | |
|
|
1944 | /* first reschedule or stop timer */ |
|
|
1945 | if (w->reschedule_cb) |
|
|
1946 | { |
|
|
1947 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1948 | |
|
|
1949 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1950 | |
|
|
1951 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1952 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1953 | } |
|
|
1954 | else if (w->interval) |
|
|
1955 | { |
|
|
1956 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1957 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1958 | /* this might happen because of floating point inexactness */ |
|
|
1959 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1960 | { |
|
|
1961 | ev_at (w) += w->interval; |
|
|
1962 | |
|
|
1963 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1964 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1965 | /* has effectively asked to get triggered more often than possible */ |
|
|
1966 | if (ev_at (w) < ev_rt_now) |
|
|
1967 | ev_at (w) = ev_rt_now; |
|
|
1968 | } |
|
|
1969 | |
|
|
1970 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1971 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1972 | } |
|
|
1973 | else |
|
|
1974 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1975 | |
|
|
1976 | EV_FREQUENT_CHECK; |
|
|
1977 | feed_reverse (EV_A_ (W)w); |
|
|
1978 | } |
|
|
1979 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
1980 | |
|
|
1981 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
1982 | } |
|
|
1983 | } |
|
|
1984 | |
|
|
1985 | /* simply recalculate all periodics */ |
|
|
1986 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
1987 | static void noinline |
|
|
1988 | periodics_reschedule (EV_P) |
|
|
1989 | { |
|
|
1990 | int i; |
|
|
1991 | |
|
|
1992 | /* adjust periodics after time jump */ |
|
|
1993 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1994 | { |
|
|
1995 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1996 | |
|
|
1997 | if (w->reschedule_cb) |
|
|
1998 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1999 | else if (w->interval) |
|
|
2000 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2001 | |
|
|
2002 | ANHE_at_cache (periodics [i]); |
|
|
2003 | } |
|
|
2004 | |
|
|
2005 | reheap (periodics, periodiccnt); |
|
|
2006 | } |
|
|
2007 | #endif |
|
|
2008 | |
|
|
2009 | /* adjust all timers by a given offset */ |
|
|
2010 | static void noinline |
|
|
2011 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2012 | { |
|
|
2013 | int i; |
|
|
2014 | |
|
|
2015 | for (i = 0; i < timercnt; ++i) |
|
|
2016 | { |
|
|
2017 | ANHE *he = timers + i + HEAP0; |
|
|
2018 | ANHE_w (*he)->at += adjust; |
|
|
2019 | ANHE_at_cache (*he); |
|
|
2020 | } |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2024 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2025 | inline_speed void |
1562 | time_update (EV_P_ ev_tstamp max_block) |
2026 | time_update (EV_P_ ev_tstamp max_block) |
1563 | { |
2027 | { |
1564 | int i; |
|
|
1565 | |
|
|
1566 | #if EV_USE_MONOTONIC |
2028 | #if EV_USE_MONOTONIC |
1567 | if (expect_true (have_monotonic)) |
2029 | if (expect_true (have_monotonic)) |
1568 | { |
2030 | { |
|
|
2031 | int i; |
1569 | ev_tstamp odiff = rtmn_diff; |
2032 | ev_tstamp odiff = rtmn_diff; |
1570 | |
2033 | |
1571 | mn_now = get_clock (); |
2034 | mn_now = get_clock (); |
1572 | |
2035 | |
1573 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2036 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1591 | */ |
2054 | */ |
1592 | for (i = 4; --i; ) |
2055 | for (i = 4; --i; ) |
1593 | { |
2056 | { |
1594 | rtmn_diff = ev_rt_now - mn_now; |
2057 | rtmn_diff = ev_rt_now - mn_now; |
1595 | |
2058 | |
1596 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2059 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1597 | return; /* all is well */ |
2060 | return; /* all is well */ |
1598 | |
2061 | |
1599 | ev_rt_now = ev_time (); |
2062 | ev_rt_now = ev_time (); |
1600 | mn_now = get_clock (); |
2063 | mn_now = get_clock (); |
1601 | now_floor = mn_now; |
2064 | now_floor = mn_now; |
1602 | } |
2065 | } |
1603 | |
2066 | |
|
|
2067 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2068 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1604 | # if EV_PERIODIC_ENABLE |
2069 | # if EV_PERIODIC_ENABLE |
1605 | periodics_reschedule (EV_A); |
2070 | periodics_reschedule (EV_A); |
1606 | # endif |
2071 | # endif |
1607 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1608 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1609 | } |
2072 | } |
1610 | else |
2073 | else |
1611 | #endif |
2074 | #endif |
1612 | { |
2075 | { |
1613 | ev_rt_now = ev_time (); |
2076 | ev_rt_now = ev_time (); |
1614 | |
2077 | |
1615 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2078 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1616 | { |
2079 | { |
|
|
2080 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2081 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1617 | #if EV_PERIODIC_ENABLE |
2082 | #if EV_PERIODIC_ENABLE |
1618 | periodics_reschedule (EV_A); |
2083 | periodics_reschedule (EV_A); |
1619 | #endif |
2084 | #endif |
1620 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1621 | for (i = 0; i < timercnt; ++i) |
|
|
1622 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1623 | } |
2085 | } |
1624 | |
2086 | |
1625 | mn_now = ev_rt_now; |
2087 | mn_now = ev_rt_now; |
1626 | } |
2088 | } |
1627 | } |
2089 | } |
1628 | |
2090 | |
1629 | void |
2091 | void |
1630 | ev_ref (EV_P) |
|
|
1631 | { |
|
|
1632 | ++activecnt; |
|
|
1633 | } |
|
|
1634 | |
|
|
1635 | void |
|
|
1636 | ev_unref (EV_P) |
|
|
1637 | { |
|
|
1638 | --activecnt; |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | static int loop_done; |
|
|
1642 | |
|
|
1643 | void |
|
|
1644 | ev_loop (EV_P_ int flags) |
2092 | ev_loop (EV_P_ int flags) |
1645 | { |
2093 | { |
|
|
2094 | #if EV_MINIMAL < 2 |
|
|
2095 | ++loop_depth; |
|
|
2096 | #endif |
|
|
2097 | |
|
|
2098 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2099 | |
1646 | loop_done = EVUNLOOP_CANCEL; |
2100 | loop_done = EVUNLOOP_CANCEL; |
1647 | |
2101 | |
1648 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2102 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1649 | |
2103 | |
1650 | do |
2104 | do |
1651 | { |
2105 | { |
|
|
2106 | #if EV_VERIFY >= 2 |
|
|
2107 | ev_loop_verify (EV_A); |
|
|
2108 | #endif |
|
|
2109 | |
1652 | #ifndef _WIN32 |
2110 | #ifndef _WIN32 |
1653 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2111 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1654 | if (expect_false (getpid () != curpid)) |
2112 | if (expect_false (getpid () != curpid)) |
1655 | { |
2113 | { |
1656 | curpid = getpid (); |
2114 | curpid = getpid (); |
… | |
… | |
1662 | /* we might have forked, so queue fork handlers */ |
2120 | /* we might have forked, so queue fork handlers */ |
1663 | if (expect_false (postfork)) |
2121 | if (expect_false (postfork)) |
1664 | if (forkcnt) |
2122 | if (forkcnt) |
1665 | { |
2123 | { |
1666 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2124 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1667 | call_pending (EV_A); |
2125 | EV_INVOKE_PENDING; |
1668 | } |
2126 | } |
1669 | #endif |
2127 | #endif |
1670 | |
2128 | |
1671 | /* queue prepare watchers (and execute them) */ |
2129 | /* queue prepare watchers (and execute them) */ |
1672 | if (expect_false (preparecnt)) |
2130 | if (expect_false (preparecnt)) |
1673 | { |
2131 | { |
1674 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2132 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1675 | call_pending (EV_A); |
2133 | EV_INVOKE_PENDING; |
1676 | } |
2134 | } |
1677 | |
2135 | |
1678 | if (expect_false (!activecnt)) |
2136 | if (expect_false (loop_done)) |
1679 | break; |
2137 | break; |
1680 | |
2138 | |
1681 | /* we might have forked, so reify kernel state if necessary */ |
2139 | /* we might have forked, so reify kernel state if necessary */ |
1682 | if (expect_false (postfork)) |
2140 | if (expect_false (postfork)) |
1683 | loop_fork (EV_A); |
2141 | loop_fork (EV_A); |
… | |
… | |
1690 | ev_tstamp waittime = 0.; |
2148 | ev_tstamp waittime = 0.; |
1691 | ev_tstamp sleeptime = 0.; |
2149 | ev_tstamp sleeptime = 0.; |
1692 | |
2150 | |
1693 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2151 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1694 | { |
2152 | { |
|
|
2153 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2154 | ev_tstamp prev_mn_now = mn_now; |
|
|
2155 | |
1695 | /* update time to cancel out callback processing overhead */ |
2156 | /* update time to cancel out callback processing overhead */ |
1696 | time_update (EV_A_ 1e100); |
2157 | time_update (EV_A_ 1e100); |
1697 | |
2158 | |
1698 | waittime = MAX_BLOCKTIME; |
2159 | waittime = MAX_BLOCKTIME; |
1699 | |
2160 | |
1700 | if (timercnt) |
2161 | if (timercnt) |
1701 | { |
2162 | { |
1702 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2163 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1703 | if (waittime > to) waittime = to; |
2164 | if (waittime > to) waittime = to; |
1704 | } |
2165 | } |
1705 | |
2166 | |
1706 | #if EV_PERIODIC_ENABLE |
2167 | #if EV_PERIODIC_ENABLE |
1707 | if (periodiccnt) |
2168 | if (periodiccnt) |
1708 | { |
2169 | { |
1709 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2170 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1710 | if (waittime > to) waittime = to; |
2171 | if (waittime > to) waittime = to; |
1711 | } |
2172 | } |
1712 | #endif |
2173 | #endif |
1713 | |
2174 | |
|
|
2175 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1714 | if (expect_false (waittime < timeout_blocktime)) |
2176 | if (expect_false (waittime < timeout_blocktime)) |
1715 | waittime = timeout_blocktime; |
2177 | waittime = timeout_blocktime; |
1716 | |
2178 | |
1717 | sleeptime = waittime - backend_fudge; |
2179 | /* extra check because io_blocktime is commonly 0 */ |
1718 | |
|
|
1719 | if (expect_true (sleeptime > io_blocktime)) |
2180 | if (expect_false (io_blocktime)) |
1720 | sleeptime = io_blocktime; |
|
|
1721 | |
|
|
1722 | if (sleeptime) |
|
|
1723 | { |
2181 | { |
|
|
2182 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2183 | |
|
|
2184 | if (sleeptime > waittime - backend_fudge) |
|
|
2185 | sleeptime = waittime - backend_fudge; |
|
|
2186 | |
|
|
2187 | if (expect_true (sleeptime > 0.)) |
|
|
2188 | { |
1724 | ev_sleep (sleeptime); |
2189 | ev_sleep (sleeptime); |
1725 | waittime -= sleeptime; |
2190 | waittime -= sleeptime; |
|
|
2191 | } |
1726 | } |
2192 | } |
1727 | } |
2193 | } |
1728 | |
2194 | |
|
|
2195 | #if EV_MINIMAL < 2 |
1729 | ++loop_count; |
2196 | ++loop_count; |
|
|
2197 | #endif |
|
|
2198 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1730 | backend_poll (EV_A_ waittime); |
2199 | backend_poll (EV_A_ waittime); |
|
|
2200 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1731 | |
2201 | |
1732 | /* update ev_rt_now, do magic */ |
2202 | /* update ev_rt_now, do magic */ |
1733 | time_update (EV_A_ waittime + sleeptime); |
2203 | time_update (EV_A_ waittime + sleeptime); |
1734 | } |
2204 | } |
1735 | |
2205 | |
… | |
… | |
1746 | |
2216 | |
1747 | /* queue check watchers, to be executed first */ |
2217 | /* queue check watchers, to be executed first */ |
1748 | if (expect_false (checkcnt)) |
2218 | if (expect_false (checkcnt)) |
1749 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2219 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1750 | |
2220 | |
1751 | call_pending (EV_A); |
2221 | EV_INVOKE_PENDING; |
1752 | } |
2222 | } |
1753 | while (expect_true ( |
2223 | while (expect_true ( |
1754 | activecnt |
2224 | activecnt |
1755 | && !loop_done |
2225 | && !loop_done |
1756 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2226 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1757 | )); |
2227 | )); |
1758 | |
2228 | |
1759 | if (loop_done == EVUNLOOP_ONE) |
2229 | if (loop_done == EVUNLOOP_ONE) |
1760 | loop_done = EVUNLOOP_CANCEL; |
2230 | loop_done = EVUNLOOP_CANCEL; |
|
|
2231 | |
|
|
2232 | #if EV_MINIMAL < 2 |
|
|
2233 | --loop_depth; |
|
|
2234 | #endif |
1761 | } |
2235 | } |
1762 | |
2236 | |
1763 | void |
2237 | void |
1764 | ev_unloop (EV_P_ int how) |
2238 | ev_unloop (EV_P_ int how) |
1765 | { |
2239 | { |
1766 | loop_done = how; |
2240 | loop_done = how; |
1767 | } |
2241 | } |
1768 | |
2242 | |
|
|
2243 | void |
|
|
2244 | ev_ref (EV_P) |
|
|
2245 | { |
|
|
2246 | ++activecnt; |
|
|
2247 | } |
|
|
2248 | |
|
|
2249 | void |
|
|
2250 | ev_unref (EV_P) |
|
|
2251 | { |
|
|
2252 | --activecnt; |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | void |
|
|
2256 | ev_now_update (EV_P) |
|
|
2257 | { |
|
|
2258 | time_update (EV_A_ 1e100); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | void |
|
|
2262 | ev_suspend (EV_P) |
|
|
2263 | { |
|
|
2264 | ev_now_update (EV_A); |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | void |
|
|
2268 | ev_resume (EV_P) |
|
|
2269 | { |
|
|
2270 | ev_tstamp mn_prev = mn_now; |
|
|
2271 | |
|
|
2272 | ev_now_update (EV_A); |
|
|
2273 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2274 | #if EV_PERIODIC_ENABLE |
|
|
2275 | /* TODO: really do this? */ |
|
|
2276 | periodics_reschedule (EV_A); |
|
|
2277 | #endif |
|
|
2278 | } |
|
|
2279 | |
1769 | /*****************************************************************************/ |
2280 | /*****************************************************************************/ |
|
|
2281 | /* singly-linked list management, used when the expected list length is short */ |
1770 | |
2282 | |
1771 | void inline_size |
2283 | inline_size void |
1772 | wlist_add (WL *head, WL elem) |
2284 | wlist_add (WL *head, WL elem) |
1773 | { |
2285 | { |
1774 | elem->next = *head; |
2286 | elem->next = *head; |
1775 | *head = elem; |
2287 | *head = elem; |
1776 | } |
2288 | } |
1777 | |
2289 | |
1778 | void inline_size |
2290 | inline_size void |
1779 | wlist_del (WL *head, WL elem) |
2291 | wlist_del (WL *head, WL elem) |
1780 | { |
2292 | { |
1781 | while (*head) |
2293 | while (*head) |
1782 | { |
2294 | { |
1783 | if (*head == elem) |
2295 | if (*head == elem) |
… | |
… | |
1788 | |
2300 | |
1789 | head = &(*head)->next; |
2301 | head = &(*head)->next; |
1790 | } |
2302 | } |
1791 | } |
2303 | } |
1792 | |
2304 | |
1793 | void inline_speed |
2305 | /* internal, faster, version of ev_clear_pending */ |
|
|
2306 | inline_speed void |
1794 | clear_pending (EV_P_ W w) |
2307 | clear_pending (EV_P_ W w) |
1795 | { |
2308 | { |
1796 | if (w->pending) |
2309 | if (w->pending) |
1797 | { |
2310 | { |
1798 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2311 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1799 | w->pending = 0; |
2312 | w->pending = 0; |
1800 | } |
2313 | } |
1801 | } |
2314 | } |
1802 | |
2315 | |
1803 | int |
2316 | int |
… | |
… | |
1807 | int pending = w_->pending; |
2320 | int pending = w_->pending; |
1808 | |
2321 | |
1809 | if (expect_true (pending)) |
2322 | if (expect_true (pending)) |
1810 | { |
2323 | { |
1811 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2324 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2325 | p->w = (W)&pending_w; |
1812 | w_->pending = 0; |
2326 | w_->pending = 0; |
1813 | p->w = 0; |
|
|
1814 | return p->events; |
2327 | return p->events; |
1815 | } |
2328 | } |
1816 | else |
2329 | else |
1817 | return 0; |
2330 | return 0; |
1818 | } |
2331 | } |
1819 | |
2332 | |
1820 | void inline_size |
2333 | inline_size void |
1821 | pri_adjust (EV_P_ W w) |
2334 | pri_adjust (EV_P_ W w) |
1822 | { |
2335 | { |
1823 | int pri = w->priority; |
2336 | int pri = ev_priority (w); |
1824 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2337 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1825 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2338 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1826 | w->priority = pri; |
2339 | ev_set_priority (w, pri); |
1827 | } |
2340 | } |
1828 | |
2341 | |
1829 | void inline_speed |
2342 | inline_speed void |
1830 | ev_start (EV_P_ W w, int active) |
2343 | ev_start (EV_P_ W w, int active) |
1831 | { |
2344 | { |
1832 | pri_adjust (EV_A_ w); |
2345 | pri_adjust (EV_A_ w); |
1833 | w->active = active; |
2346 | w->active = active; |
1834 | ev_ref (EV_A); |
2347 | ev_ref (EV_A); |
1835 | } |
2348 | } |
1836 | |
2349 | |
1837 | void inline_size |
2350 | inline_size void |
1838 | ev_stop (EV_P_ W w) |
2351 | ev_stop (EV_P_ W w) |
1839 | { |
2352 | { |
1840 | ev_unref (EV_A); |
2353 | ev_unref (EV_A); |
1841 | w->active = 0; |
2354 | w->active = 0; |
1842 | } |
2355 | } |
… | |
… | |
1849 | int fd = w->fd; |
2362 | int fd = w->fd; |
1850 | |
2363 | |
1851 | if (expect_false (ev_is_active (w))) |
2364 | if (expect_false (ev_is_active (w))) |
1852 | return; |
2365 | return; |
1853 | |
2366 | |
1854 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2367 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2368 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2369 | |
|
|
2370 | EV_FREQUENT_CHECK; |
1855 | |
2371 | |
1856 | ev_start (EV_A_ (W)w, 1); |
2372 | ev_start (EV_A_ (W)w, 1); |
1857 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2373 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1858 | wlist_add (&anfds[fd].head, (WL)w); |
2374 | wlist_add (&anfds[fd].head, (WL)w); |
1859 | |
2375 | |
1860 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2376 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1861 | w->events &= ~EV_IOFDSET; |
2377 | w->events &= ~EV__IOFDSET; |
|
|
2378 | |
|
|
2379 | EV_FREQUENT_CHECK; |
1862 | } |
2380 | } |
1863 | |
2381 | |
1864 | void noinline |
2382 | void noinline |
1865 | ev_io_stop (EV_P_ ev_io *w) |
2383 | ev_io_stop (EV_P_ ev_io *w) |
1866 | { |
2384 | { |
1867 | clear_pending (EV_A_ (W)w); |
2385 | clear_pending (EV_A_ (W)w); |
1868 | if (expect_false (!ev_is_active (w))) |
2386 | if (expect_false (!ev_is_active (w))) |
1869 | return; |
2387 | return; |
1870 | |
2388 | |
1871 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2389 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
1872 | |
2392 | |
1873 | wlist_del (&anfds[w->fd].head, (WL)w); |
2393 | wlist_del (&anfds[w->fd].head, (WL)w); |
1874 | ev_stop (EV_A_ (W)w); |
2394 | ev_stop (EV_A_ (W)w); |
1875 | |
2395 | |
1876 | fd_change (EV_A_ w->fd, 1); |
2396 | fd_change (EV_A_ w->fd, 1); |
|
|
2397 | |
|
|
2398 | EV_FREQUENT_CHECK; |
1877 | } |
2399 | } |
1878 | |
2400 | |
1879 | void noinline |
2401 | void noinline |
1880 | ev_timer_start (EV_P_ ev_timer *w) |
2402 | ev_timer_start (EV_P_ ev_timer *w) |
1881 | { |
2403 | { |
1882 | if (expect_false (ev_is_active (w))) |
2404 | if (expect_false (ev_is_active (w))) |
1883 | return; |
2405 | return; |
1884 | |
2406 | |
1885 | ((WT)w)->at += mn_now; |
2407 | ev_at (w) += mn_now; |
1886 | |
2408 | |
1887 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2409 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1888 | |
2410 | |
|
|
2411 | EV_FREQUENT_CHECK; |
|
|
2412 | |
|
|
2413 | ++timercnt; |
1889 | ev_start (EV_A_ (W)w, ++timercnt); |
2414 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1890 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2415 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1891 | timers [timercnt - 1] = (WT)w; |
2416 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1892 | upheap (timers, timercnt - 1); |
2417 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2418 | upheap (timers, ev_active (w)); |
1893 | |
2419 | |
|
|
2420 | EV_FREQUENT_CHECK; |
|
|
2421 | |
1894 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2422 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1895 | } |
2423 | } |
1896 | |
2424 | |
1897 | void noinline |
2425 | void noinline |
1898 | ev_timer_stop (EV_P_ ev_timer *w) |
2426 | ev_timer_stop (EV_P_ ev_timer *w) |
1899 | { |
2427 | { |
1900 | clear_pending (EV_A_ (W)w); |
2428 | clear_pending (EV_A_ (W)w); |
1901 | if (expect_false (!ev_is_active (w))) |
2429 | if (expect_false (!ev_is_active (w))) |
1902 | return; |
2430 | return; |
1903 | |
2431 | |
1904 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2432 | EV_FREQUENT_CHECK; |
1905 | |
2433 | |
1906 | { |
2434 | { |
1907 | int active = ((W)w)->active; |
2435 | int active = ev_active (w); |
1908 | |
2436 | |
|
|
2437 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2438 | |
|
|
2439 | --timercnt; |
|
|
2440 | |
1909 | if (expect_true (--active < --timercnt)) |
2441 | if (expect_true (active < timercnt + HEAP0)) |
1910 | { |
2442 | { |
1911 | timers [active] = timers [timercnt]; |
2443 | timers [active] = timers [timercnt + HEAP0]; |
1912 | adjustheap (timers, timercnt, active); |
2444 | adjustheap (timers, timercnt, active); |
1913 | } |
2445 | } |
1914 | } |
2446 | } |
1915 | |
2447 | |
1916 | ((WT)w)->at -= mn_now; |
2448 | EV_FREQUENT_CHECK; |
|
|
2449 | |
|
|
2450 | ev_at (w) -= mn_now; |
1917 | |
2451 | |
1918 | ev_stop (EV_A_ (W)w); |
2452 | ev_stop (EV_A_ (W)w); |
1919 | } |
2453 | } |
1920 | |
2454 | |
1921 | void noinline |
2455 | void noinline |
1922 | ev_timer_again (EV_P_ ev_timer *w) |
2456 | ev_timer_again (EV_P_ ev_timer *w) |
1923 | { |
2457 | { |
|
|
2458 | EV_FREQUENT_CHECK; |
|
|
2459 | |
1924 | if (ev_is_active (w)) |
2460 | if (ev_is_active (w)) |
1925 | { |
2461 | { |
1926 | if (w->repeat) |
2462 | if (w->repeat) |
1927 | { |
2463 | { |
1928 | ((WT)w)->at = mn_now + w->repeat; |
2464 | ev_at (w) = mn_now + w->repeat; |
|
|
2465 | ANHE_at_cache (timers [ev_active (w)]); |
1929 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2466 | adjustheap (timers, timercnt, ev_active (w)); |
1930 | } |
2467 | } |
1931 | else |
2468 | else |
1932 | ev_timer_stop (EV_A_ w); |
2469 | ev_timer_stop (EV_A_ w); |
1933 | } |
2470 | } |
1934 | else if (w->repeat) |
2471 | else if (w->repeat) |
1935 | { |
2472 | { |
1936 | w->at = w->repeat; |
2473 | ev_at (w) = w->repeat; |
1937 | ev_timer_start (EV_A_ w); |
2474 | ev_timer_start (EV_A_ w); |
1938 | } |
2475 | } |
|
|
2476 | |
|
|
2477 | EV_FREQUENT_CHECK; |
1939 | } |
2478 | } |
1940 | |
2479 | |
1941 | #if EV_PERIODIC_ENABLE |
2480 | #if EV_PERIODIC_ENABLE |
1942 | void noinline |
2481 | void noinline |
1943 | ev_periodic_start (EV_P_ ev_periodic *w) |
2482 | ev_periodic_start (EV_P_ ev_periodic *w) |
1944 | { |
2483 | { |
1945 | if (expect_false (ev_is_active (w))) |
2484 | if (expect_false (ev_is_active (w))) |
1946 | return; |
2485 | return; |
1947 | |
2486 | |
1948 | if (w->reschedule_cb) |
2487 | if (w->reschedule_cb) |
1949 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2488 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1950 | else if (w->interval) |
2489 | else if (w->interval) |
1951 | { |
2490 | { |
1952 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2491 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1953 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2492 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1954 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2493 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1955 | } |
2494 | } |
1956 | else |
2495 | else |
1957 | ((WT)w)->at = w->offset; |
2496 | ev_at (w) = w->offset; |
1958 | |
2497 | |
|
|
2498 | EV_FREQUENT_CHECK; |
|
|
2499 | |
|
|
2500 | ++periodiccnt; |
1959 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2501 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1960 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2502 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1961 | periodics [periodiccnt - 1] = (WT)w; |
2503 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1962 | upheap (periodics, periodiccnt - 1); |
2504 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2505 | upheap (periodics, ev_active (w)); |
1963 | |
2506 | |
|
|
2507 | EV_FREQUENT_CHECK; |
|
|
2508 | |
1964 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2509 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1965 | } |
2510 | } |
1966 | |
2511 | |
1967 | void noinline |
2512 | void noinline |
1968 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2513 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1969 | { |
2514 | { |
1970 | clear_pending (EV_A_ (W)w); |
2515 | clear_pending (EV_A_ (W)w); |
1971 | if (expect_false (!ev_is_active (w))) |
2516 | if (expect_false (!ev_is_active (w))) |
1972 | return; |
2517 | return; |
1973 | |
2518 | |
1974 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2519 | EV_FREQUENT_CHECK; |
1975 | |
2520 | |
1976 | { |
2521 | { |
1977 | int active = ((W)w)->active; |
2522 | int active = ev_active (w); |
1978 | |
2523 | |
|
|
2524 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2525 | |
|
|
2526 | --periodiccnt; |
|
|
2527 | |
1979 | if (expect_true (--active < --periodiccnt)) |
2528 | if (expect_true (active < periodiccnt + HEAP0)) |
1980 | { |
2529 | { |
1981 | periodics [active] = periodics [periodiccnt]; |
2530 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1982 | adjustheap (periodics, periodiccnt, active); |
2531 | adjustheap (periodics, periodiccnt, active); |
1983 | } |
2532 | } |
1984 | } |
2533 | } |
1985 | |
2534 | |
|
|
2535 | EV_FREQUENT_CHECK; |
|
|
2536 | |
1986 | ev_stop (EV_A_ (W)w); |
2537 | ev_stop (EV_A_ (W)w); |
1987 | } |
2538 | } |
1988 | |
2539 | |
1989 | void noinline |
2540 | void noinline |
1990 | ev_periodic_again (EV_P_ ev_periodic *w) |
2541 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
2001 | |
2552 | |
2002 | void noinline |
2553 | void noinline |
2003 | ev_signal_start (EV_P_ ev_signal *w) |
2554 | ev_signal_start (EV_P_ ev_signal *w) |
2004 | { |
2555 | { |
2005 | #if EV_MULTIPLICITY |
2556 | #if EV_MULTIPLICITY |
2006 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2557 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2007 | #endif |
2558 | #endif |
2008 | if (expect_false (ev_is_active (w))) |
2559 | if (expect_false (ev_is_active (w))) |
2009 | return; |
2560 | return; |
2010 | |
2561 | |
2011 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2562 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2012 | |
2563 | |
2013 | evpipe_init (EV_A); |
2564 | evpipe_init (EV_A); |
|
|
2565 | |
|
|
2566 | EV_FREQUENT_CHECK; |
2014 | |
2567 | |
2015 | { |
2568 | { |
2016 | #ifndef _WIN32 |
2569 | #ifndef _WIN32 |
2017 | sigset_t full, prev; |
2570 | sigset_t full, prev; |
2018 | sigfillset (&full); |
2571 | sigfillset (&full); |
2019 | sigprocmask (SIG_SETMASK, &full, &prev); |
2572 | sigprocmask (SIG_SETMASK, &full, &prev); |
2020 | #endif |
2573 | #endif |
2021 | |
2574 | |
2022 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2575 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2023 | |
2576 | |
2024 | #ifndef _WIN32 |
2577 | #ifndef _WIN32 |
2025 | sigprocmask (SIG_SETMASK, &prev, 0); |
2578 | sigprocmask (SIG_SETMASK, &prev, 0); |
2026 | #endif |
2579 | #endif |
2027 | } |
2580 | } |
… | |
… | |
2032 | if (!((WL)w)->next) |
2585 | if (!((WL)w)->next) |
2033 | { |
2586 | { |
2034 | #if _WIN32 |
2587 | #if _WIN32 |
2035 | signal (w->signum, ev_sighandler); |
2588 | signal (w->signum, ev_sighandler); |
2036 | #else |
2589 | #else |
2037 | struct sigaction sa; |
2590 | struct sigaction sa = { }; |
2038 | sa.sa_handler = ev_sighandler; |
2591 | sa.sa_handler = ev_sighandler; |
2039 | sigfillset (&sa.sa_mask); |
2592 | sigfillset (&sa.sa_mask); |
2040 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2593 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2041 | sigaction (w->signum, &sa, 0); |
2594 | sigaction (w->signum, &sa, 0); |
2042 | #endif |
2595 | #endif |
2043 | } |
2596 | } |
|
|
2597 | |
|
|
2598 | EV_FREQUENT_CHECK; |
2044 | } |
2599 | } |
2045 | |
2600 | |
2046 | void noinline |
2601 | void noinline |
2047 | ev_signal_stop (EV_P_ ev_signal *w) |
2602 | ev_signal_stop (EV_P_ ev_signal *w) |
2048 | { |
2603 | { |
2049 | clear_pending (EV_A_ (W)w); |
2604 | clear_pending (EV_A_ (W)w); |
2050 | if (expect_false (!ev_is_active (w))) |
2605 | if (expect_false (!ev_is_active (w))) |
2051 | return; |
2606 | return; |
2052 | |
2607 | |
|
|
2608 | EV_FREQUENT_CHECK; |
|
|
2609 | |
2053 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2610 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2054 | ev_stop (EV_A_ (W)w); |
2611 | ev_stop (EV_A_ (W)w); |
2055 | |
2612 | |
2056 | if (!signals [w->signum - 1].head) |
2613 | if (!signals [w->signum - 1].head) |
2057 | signal (w->signum, SIG_DFL); |
2614 | signal (w->signum, SIG_DFL); |
|
|
2615 | |
|
|
2616 | EV_FREQUENT_CHECK; |
2058 | } |
2617 | } |
2059 | |
2618 | |
2060 | void |
2619 | void |
2061 | ev_child_start (EV_P_ ev_child *w) |
2620 | ev_child_start (EV_P_ ev_child *w) |
2062 | { |
2621 | { |
2063 | #if EV_MULTIPLICITY |
2622 | #if EV_MULTIPLICITY |
2064 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2623 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2065 | #endif |
2624 | #endif |
2066 | if (expect_false (ev_is_active (w))) |
2625 | if (expect_false (ev_is_active (w))) |
2067 | return; |
2626 | return; |
2068 | |
2627 | |
|
|
2628 | EV_FREQUENT_CHECK; |
|
|
2629 | |
2069 | ev_start (EV_A_ (W)w, 1); |
2630 | ev_start (EV_A_ (W)w, 1); |
2070 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2631 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2632 | |
|
|
2633 | EV_FREQUENT_CHECK; |
2071 | } |
2634 | } |
2072 | |
2635 | |
2073 | void |
2636 | void |
2074 | ev_child_stop (EV_P_ ev_child *w) |
2637 | ev_child_stop (EV_P_ ev_child *w) |
2075 | { |
2638 | { |
2076 | clear_pending (EV_A_ (W)w); |
2639 | clear_pending (EV_A_ (W)w); |
2077 | if (expect_false (!ev_is_active (w))) |
2640 | if (expect_false (!ev_is_active (w))) |
2078 | return; |
2641 | return; |
2079 | |
2642 | |
|
|
2643 | EV_FREQUENT_CHECK; |
|
|
2644 | |
2080 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2645 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2081 | ev_stop (EV_A_ (W)w); |
2646 | ev_stop (EV_A_ (W)w); |
|
|
2647 | |
|
|
2648 | EV_FREQUENT_CHECK; |
2082 | } |
2649 | } |
2083 | |
2650 | |
2084 | #if EV_STAT_ENABLE |
2651 | #if EV_STAT_ENABLE |
2085 | |
2652 | |
2086 | # ifdef _WIN32 |
2653 | # ifdef _WIN32 |
2087 | # undef lstat |
2654 | # undef lstat |
2088 | # define lstat(a,b) _stati64 (a,b) |
2655 | # define lstat(a,b) _stati64 (a,b) |
2089 | # endif |
2656 | # endif |
2090 | |
2657 | |
2091 | #define DEF_STAT_INTERVAL 5.0074891 |
2658 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2659 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2092 | #define MIN_STAT_INTERVAL 0.1074891 |
2660 | #define MIN_STAT_INTERVAL 0.1074891 |
2093 | |
2661 | |
2094 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2662 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2095 | |
2663 | |
2096 | #if EV_USE_INOTIFY |
2664 | #if EV_USE_INOTIFY |
2097 | # define EV_INOTIFY_BUFSIZE 8192 |
2665 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2101 | { |
2669 | { |
2102 | 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); |
2670 | 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); |
2103 | |
2671 | |
2104 | if (w->wd < 0) |
2672 | if (w->wd < 0) |
2105 | { |
2673 | { |
|
|
2674 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2106 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2675 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2107 | |
2676 | |
2108 | /* monitor some parent directory for speedup hints */ |
2677 | /* monitor some parent directory for speedup hints */ |
|
|
2678 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2679 | /* but an efficiency issue only */ |
2109 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2680 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2110 | { |
2681 | { |
2111 | char path [4096]; |
2682 | char path [4096]; |
2112 | strcpy (path, w->path); |
2683 | strcpy (path, w->path); |
2113 | |
2684 | |
… | |
… | |
2116 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2687 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2117 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2688 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2118 | |
2689 | |
2119 | char *pend = strrchr (path, '/'); |
2690 | char *pend = strrchr (path, '/'); |
2120 | |
2691 | |
2121 | if (!pend) |
2692 | if (!pend || pend == path) |
2122 | break; /* whoops, no '/', complain to your admin */ |
2693 | break; |
2123 | |
2694 | |
2124 | *pend = 0; |
2695 | *pend = 0; |
2125 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2696 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2126 | } |
2697 | } |
2127 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2698 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2128 | } |
2699 | } |
2129 | } |
2700 | } |
2130 | else |
|
|
2131 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2132 | |
2701 | |
2133 | if (w->wd >= 0) |
2702 | if (w->wd >= 0) |
|
|
2703 | { |
2134 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2704 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2705 | |
|
|
2706 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2707 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2708 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2709 | struct statfs sfs; |
|
|
2710 | |
|
|
2711 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2712 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2713 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2714 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2715 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2716 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2717 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2718 | return; |
|
|
2719 | |
|
|
2720 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2721 | ev_timer_again (EV_A_ &w->timer); |
|
|
2722 | } |
2135 | } |
2723 | } |
2136 | |
2724 | |
2137 | static void noinline |
2725 | static void noinline |
2138 | infy_del (EV_P_ ev_stat *w) |
2726 | infy_del (EV_P_ ev_stat *w) |
2139 | { |
2727 | { |
… | |
… | |
2153 | |
2741 | |
2154 | static void noinline |
2742 | static void noinline |
2155 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2743 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2156 | { |
2744 | { |
2157 | if (slot < 0) |
2745 | if (slot < 0) |
2158 | /* overflow, need to check for all hahs slots */ |
2746 | /* overflow, need to check for all hash slots */ |
2159 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2747 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2160 | infy_wd (EV_A_ slot, wd, ev); |
2748 | infy_wd (EV_A_ slot, wd, ev); |
2161 | else |
2749 | else |
2162 | { |
2750 | { |
2163 | WL w_; |
2751 | WL w_; |
… | |
… | |
2169 | |
2757 | |
2170 | if (w->wd == wd || wd == -1) |
2758 | if (w->wd == wd || wd == -1) |
2171 | { |
2759 | { |
2172 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2760 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2173 | { |
2761 | { |
|
|
2762 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2174 | w->wd = -1; |
2763 | w->wd = -1; |
2175 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2764 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2176 | } |
2765 | } |
2177 | |
2766 | |
2178 | stat_timer_cb (EV_A_ &w->timer, 0); |
2767 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2191 | |
2780 | |
2192 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2781 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2193 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2782 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2194 | } |
2783 | } |
2195 | |
2784 | |
2196 | void inline_size |
2785 | inline_size void |
|
|
2786 | check_2625 (EV_P) |
|
|
2787 | { |
|
|
2788 | /* kernels < 2.6.25 are borked |
|
|
2789 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2790 | */ |
|
|
2791 | struct utsname buf; |
|
|
2792 | int major, minor, micro; |
|
|
2793 | |
|
|
2794 | if (uname (&buf)) |
|
|
2795 | return; |
|
|
2796 | |
|
|
2797 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2798 | return; |
|
|
2799 | |
|
|
2800 | if (major < 2 |
|
|
2801 | || (major == 2 && minor < 6) |
|
|
2802 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2803 | return; |
|
|
2804 | |
|
|
2805 | fs_2625 = 1; |
|
|
2806 | } |
|
|
2807 | |
|
|
2808 | inline_size void |
2197 | infy_init (EV_P) |
2809 | infy_init (EV_P) |
2198 | { |
2810 | { |
2199 | if (fs_fd != -2) |
2811 | if (fs_fd != -2) |
2200 | return; |
2812 | return; |
|
|
2813 | |
|
|
2814 | fs_fd = -1; |
|
|
2815 | |
|
|
2816 | check_2625 (EV_A); |
2201 | |
2817 | |
2202 | fs_fd = inotify_init (); |
2818 | fs_fd = inotify_init (); |
2203 | |
2819 | |
2204 | if (fs_fd >= 0) |
2820 | if (fs_fd >= 0) |
2205 | { |
2821 | { |
… | |
… | |
2207 | ev_set_priority (&fs_w, EV_MAXPRI); |
2823 | ev_set_priority (&fs_w, EV_MAXPRI); |
2208 | ev_io_start (EV_A_ &fs_w); |
2824 | ev_io_start (EV_A_ &fs_w); |
2209 | } |
2825 | } |
2210 | } |
2826 | } |
2211 | |
2827 | |
2212 | void inline_size |
2828 | inline_size void |
2213 | infy_fork (EV_P) |
2829 | infy_fork (EV_P) |
2214 | { |
2830 | { |
2215 | int slot; |
2831 | int slot; |
2216 | |
2832 | |
2217 | if (fs_fd < 0) |
2833 | if (fs_fd < 0) |
… | |
… | |
2233 | w->wd = -1; |
2849 | w->wd = -1; |
2234 | |
2850 | |
2235 | if (fs_fd >= 0) |
2851 | if (fs_fd >= 0) |
2236 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2852 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2237 | else |
2853 | else |
2238 | ev_timer_start (EV_A_ &w->timer); |
2854 | ev_timer_again (EV_A_ &w->timer); |
2239 | } |
2855 | } |
2240 | |
|
|
2241 | } |
2856 | } |
2242 | } |
2857 | } |
2243 | |
2858 | |
|
|
2859 | #endif |
|
|
2860 | |
|
|
2861 | #ifdef _WIN32 |
|
|
2862 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2863 | #else |
|
|
2864 | # define EV_LSTAT(p,b) lstat (p, b) |
2244 | #endif |
2865 | #endif |
2245 | |
2866 | |
2246 | void |
2867 | void |
2247 | ev_stat_stat (EV_P_ ev_stat *w) |
2868 | ev_stat_stat (EV_P_ ev_stat *w) |
2248 | { |
2869 | { |
… | |
… | |
2275 | || w->prev.st_atime != w->attr.st_atime |
2896 | || w->prev.st_atime != w->attr.st_atime |
2276 | || w->prev.st_mtime != w->attr.st_mtime |
2897 | || w->prev.st_mtime != w->attr.st_mtime |
2277 | || w->prev.st_ctime != w->attr.st_ctime |
2898 | || w->prev.st_ctime != w->attr.st_ctime |
2278 | ) { |
2899 | ) { |
2279 | #if EV_USE_INOTIFY |
2900 | #if EV_USE_INOTIFY |
|
|
2901 | if (fs_fd >= 0) |
|
|
2902 | { |
2280 | infy_del (EV_A_ w); |
2903 | infy_del (EV_A_ w); |
2281 | infy_add (EV_A_ w); |
2904 | infy_add (EV_A_ w); |
2282 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2905 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2906 | } |
2283 | #endif |
2907 | #endif |
2284 | |
2908 | |
2285 | ev_feed_event (EV_A_ w, EV_STAT); |
2909 | ev_feed_event (EV_A_ w, EV_STAT); |
2286 | } |
2910 | } |
2287 | } |
2911 | } |
… | |
… | |
2290 | ev_stat_start (EV_P_ ev_stat *w) |
2914 | ev_stat_start (EV_P_ ev_stat *w) |
2291 | { |
2915 | { |
2292 | if (expect_false (ev_is_active (w))) |
2916 | if (expect_false (ev_is_active (w))) |
2293 | return; |
2917 | return; |
2294 | |
2918 | |
2295 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2296 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2297 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2298 | |
|
|
2299 | ev_stat_stat (EV_A_ w); |
2919 | ev_stat_stat (EV_A_ w); |
2300 | |
2920 | |
|
|
2921 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2301 | if (w->interval < MIN_STAT_INTERVAL) |
2922 | w->interval = MIN_STAT_INTERVAL; |
2302 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2303 | |
2923 | |
2304 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2924 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2305 | ev_set_priority (&w->timer, ev_priority (w)); |
2925 | ev_set_priority (&w->timer, ev_priority (w)); |
2306 | |
2926 | |
2307 | #if EV_USE_INOTIFY |
2927 | #if EV_USE_INOTIFY |
2308 | infy_init (EV_A); |
2928 | infy_init (EV_A); |
2309 | |
2929 | |
2310 | if (fs_fd >= 0) |
2930 | if (fs_fd >= 0) |
2311 | infy_add (EV_A_ w); |
2931 | infy_add (EV_A_ w); |
2312 | else |
2932 | else |
2313 | #endif |
2933 | #endif |
2314 | ev_timer_start (EV_A_ &w->timer); |
2934 | ev_timer_again (EV_A_ &w->timer); |
2315 | |
2935 | |
2316 | ev_start (EV_A_ (W)w, 1); |
2936 | ev_start (EV_A_ (W)w, 1); |
|
|
2937 | |
|
|
2938 | EV_FREQUENT_CHECK; |
2317 | } |
2939 | } |
2318 | |
2940 | |
2319 | void |
2941 | void |
2320 | ev_stat_stop (EV_P_ ev_stat *w) |
2942 | ev_stat_stop (EV_P_ ev_stat *w) |
2321 | { |
2943 | { |
2322 | clear_pending (EV_A_ (W)w); |
2944 | clear_pending (EV_A_ (W)w); |
2323 | if (expect_false (!ev_is_active (w))) |
2945 | if (expect_false (!ev_is_active (w))) |
2324 | return; |
2946 | return; |
2325 | |
2947 | |
|
|
2948 | EV_FREQUENT_CHECK; |
|
|
2949 | |
2326 | #if EV_USE_INOTIFY |
2950 | #if EV_USE_INOTIFY |
2327 | infy_del (EV_A_ w); |
2951 | infy_del (EV_A_ w); |
2328 | #endif |
2952 | #endif |
2329 | ev_timer_stop (EV_A_ &w->timer); |
2953 | ev_timer_stop (EV_A_ &w->timer); |
2330 | |
2954 | |
2331 | ev_stop (EV_A_ (W)w); |
2955 | ev_stop (EV_A_ (W)w); |
|
|
2956 | |
|
|
2957 | EV_FREQUENT_CHECK; |
2332 | } |
2958 | } |
2333 | #endif |
2959 | #endif |
2334 | |
2960 | |
2335 | #if EV_IDLE_ENABLE |
2961 | #if EV_IDLE_ENABLE |
2336 | void |
2962 | void |
… | |
… | |
2338 | { |
2964 | { |
2339 | if (expect_false (ev_is_active (w))) |
2965 | if (expect_false (ev_is_active (w))) |
2340 | return; |
2966 | return; |
2341 | |
2967 | |
2342 | pri_adjust (EV_A_ (W)w); |
2968 | pri_adjust (EV_A_ (W)w); |
|
|
2969 | |
|
|
2970 | EV_FREQUENT_CHECK; |
2343 | |
2971 | |
2344 | { |
2972 | { |
2345 | int active = ++idlecnt [ABSPRI (w)]; |
2973 | int active = ++idlecnt [ABSPRI (w)]; |
2346 | |
2974 | |
2347 | ++idleall; |
2975 | ++idleall; |
2348 | ev_start (EV_A_ (W)w, active); |
2976 | ev_start (EV_A_ (W)w, active); |
2349 | |
2977 | |
2350 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2978 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2351 | idles [ABSPRI (w)][active - 1] = w; |
2979 | idles [ABSPRI (w)][active - 1] = w; |
2352 | } |
2980 | } |
|
|
2981 | |
|
|
2982 | EV_FREQUENT_CHECK; |
2353 | } |
2983 | } |
2354 | |
2984 | |
2355 | void |
2985 | void |
2356 | ev_idle_stop (EV_P_ ev_idle *w) |
2986 | ev_idle_stop (EV_P_ ev_idle *w) |
2357 | { |
2987 | { |
2358 | clear_pending (EV_A_ (W)w); |
2988 | clear_pending (EV_A_ (W)w); |
2359 | if (expect_false (!ev_is_active (w))) |
2989 | if (expect_false (!ev_is_active (w))) |
2360 | return; |
2990 | return; |
2361 | |
2991 | |
|
|
2992 | EV_FREQUENT_CHECK; |
|
|
2993 | |
2362 | { |
2994 | { |
2363 | int active = ((W)w)->active; |
2995 | int active = ev_active (w); |
2364 | |
2996 | |
2365 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2997 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2366 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2998 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2367 | |
2999 | |
2368 | ev_stop (EV_A_ (W)w); |
3000 | ev_stop (EV_A_ (W)w); |
2369 | --idleall; |
3001 | --idleall; |
2370 | } |
3002 | } |
|
|
3003 | |
|
|
3004 | EV_FREQUENT_CHECK; |
2371 | } |
3005 | } |
2372 | #endif |
3006 | #endif |
2373 | |
3007 | |
2374 | void |
3008 | void |
2375 | ev_prepare_start (EV_P_ ev_prepare *w) |
3009 | ev_prepare_start (EV_P_ ev_prepare *w) |
2376 | { |
3010 | { |
2377 | if (expect_false (ev_is_active (w))) |
3011 | if (expect_false (ev_is_active (w))) |
2378 | return; |
3012 | return; |
|
|
3013 | |
|
|
3014 | EV_FREQUENT_CHECK; |
2379 | |
3015 | |
2380 | ev_start (EV_A_ (W)w, ++preparecnt); |
3016 | ev_start (EV_A_ (W)w, ++preparecnt); |
2381 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3017 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2382 | prepares [preparecnt - 1] = w; |
3018 | prepares [preparecnt - 1] = w; |
|
|
3019 | |
|
|
3020 | EV_FREQUENT_CHECK; |
2383 | } |
3021 | } |
2384 | |
3022 | |
2385 | void |
3023 | void |
2386 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3024 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2387 | { |
3025 | { |
2388 | clear_pending (EV_A_ (W)w); |
3026 | clear_pending (EV_A_ (W)w); |
2389 | if (expect_false (!ev_is_active (w))) |
3027 | if (expect_false (!ev_is_active (w))) |
2390 | return; |
3028 | return; |
2391 | |
3029 | |
|
|
3030 | EV_FREQUENT_CHECK; |
|
|
3031 | |
2392 | { |
3032 | { |
2393 | int active = ((W)w)->active; |
3033 | int active = ev_active (w); |
|
|
3034 | |
2394 | prepares [active - 1] = prepares [--preparecnt]; |
3035 | prepares [active - 1] = prepares [--preparecnt]; |
2395 | ((W)prepares [active - 1])->active = active; |
3036 | ev_active (prepares [active - 1]) = active; |
2396 | } |
3037 | } |
2397 | |
3038 | |
2398 | ev_stop (EV_A_ (W)w); |
3039 | ev_stop (EV_A_ (W)w); |
|
|
3040 | |
|
|
3041 | EV_FREQUENT_CHECK; |
2399 | } |
3042 | } |
2400 | |
3043 | |
2401 | void |
3044 | void |
2402 | ev_check_start (EV_P_ ev_check *w) |
3045 | ev_check_start (EV_P_ ev_check *w) |
2403 | { |
3046 | { |
2404 | if (expect_false (ev_is_active (w))) |
3047 | if (expect_false (ev_is_active (w))) |
2405 | return; |
3048 | return; |
|
|
3049 | |
|
|
3050 | EV_FREQUENT_CHECK; |
2406 | |
3051 | |
2407 | ev_start (EV_A_ (W)w, ++checkcnt); |
3052 | ev_start (EV_A_ (W)w, ++checkcnt); |
2408 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3053 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2409 | checks [checkcnt - 1] = w; |
3054 | checks [checkcnt - 1] = w; |
|
|
3055 | |
|
|
3056 | EV_FREQUENT_CHECK; |
2410 | } |
3057 | } |
2411 | |
3058 | |
2412 | void |
3059 | void |
2413 | ev_check_stop (EV_P_ ev_check *w) |
3060 | ev_check_stop (EV_P_ ev_check *w) |
2414 | { |
3061 | { |
2415 | clear_pending (EV_A_ (W)w); |
3062 | clear_pending (EV_A_ (W)w); |
2416 | if (expect_false (!ev_is_active (w))) |
3063 | if (expect_false (!ev_is_active (w))) |
2417 | return; |
3064 | return; |
2418 | |
3065 | |
|
|
3066 | EV_FREQUENT_CHECK; |
|
|
3067 | |
2419 | { |
3068 | { |
2420 | int active = ((W)w)->active; |
3069 | int active = ev_active (w); |
|
|
3070 | |
2421 | checks [active - 1] = checks [--checkcnt]; |
3071 | checks [active - 1] = checks [--checkcnt]; |
2422 | ((W)checks [active - 1])->active = active; |
3072 | ev_active (checks [active - 1]) = active; |
2423 | } |
3073 | } |
2424 | |
3074 | |
2425 | ev_stop (EV_A_ (W)w); |
3075 | ev_stop (EV_A_ (W)w); |
|
|
3076 | |
|
|
3077 | EV_FREQUENT_CHECK; |
2426 | } |
3078 | } |
2427 | |
3079 | |
2428 | #if EV_EMBED_ENABLE |
3080 | #if EV_EMBED_ENABLE |
2429 | void noinline |
3081 | void noinline |
2430 | ev_embed_sweep (EV_P_ ev_embed *w) |
3082 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2457 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3109 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2458 | } |
3110 | } |
2459 | } |
3111 | } |
2460 | } |
3112 | } |
2461 | |
3113 | |
|
|
3114 | static void |
|
|
3115 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3116 | { |
|
|
3117 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3118 | |
|
|
3119 | ev_embed_stop (EV_A_ w); |
|
|
3120 | |
|
|
3121 | { |
|
|
3122 | struct ev_loop *loop = w->other; |
|
|
3123 | |
|
|
3124 | ev_loop_fork (EV_A); |
|
|
3125 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | ev_embed_start (EV_A_ w); |
|
|
3129 | } |
|
|
3130 | |
2462 | #if 0 |
3131 | #if 0 |
2463 | static void |
3132 | static void |
2464 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3133 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2465 | { |
3134 | { |
2466 | ev_idle_stop (EV_A_ idle); |
3135 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2473 | if (expect_false (ev_is_active (w))) |
3142 | if (expect_false (ev_is_active (w))) |
2474 | return; |
3143 | return; |
2475 | |
3144 | |
2476 | { |
3145 | { |
2477 | struct ev_loop *loop = w->other; |
3146 | struct ev_loop *loop = w->other; |
2478 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3147 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2479 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3148 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2480 | } |
3149 | } |
|
|
3150 | |
|
|
3151 | EV_FREQUENT_CHECK; |
2481 | |
3152 | |
2482 | ev_set_priority (&w->io, ev_priority (w)); |
3153 | ev_set_priority (&w->io, ev_priority (w)); |
2483 | ev_io_start (EV_A_ &w->io); |
3154 | ev_io_start (EV_A_ &w->io); |
2484 | |
3155 | |
2485 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3156 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2486 | ev_set_priority (&w->prepare, EV_MINPRI); |
3157 | ev_set_priority (&w->prepare, EV_MINPRI); |
2487 | ev_prepare_start (EV_A_ &w->prepare); |
3158 | ev_prepare_start (EV_A_ &w->prepare); |
2488 | |
3159 | |
|
|
3160 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3161 | ev_fork_start (EV_A_ &w->fork); |
|
|
3162 | |
2489 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3163 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2490 | |
3164 | |
2491 | ev_start (EV_A_ (W)w, 1); |
3165 | ev_start (EV_A_ (W)w, 1); |
|
|
3166 | |
|
|
3167 | EV_FREQUENT_CHECK; |
2492 | } |
3168 | } |
2493 | |
3169 | |
2494 | void |
3170 | void |
2495 | ev_embed_stop (EV_P_ ev_embed *w) |
3171 | ev_embed_stop (EV_P_ ev_embed *w) |
2496 | { |
3172 | { |
2497 | clear_pending (EV_A_ (W)w); |
3173 | clear_pending (EV_A_ (W)w); |
2498 | if (expect_false (!ev_is_active (w))) |
3174 | if (expect_false (!ev_is_active (w))) |
2499 | return; |
3175 | return; |
2500 | |
3176 | |
|
|
3177 | EV_FREQUENT_CHECK; |
|
|
3178 | |
2501 | ev_io_stop (EV_A_ &w->io); |
3179 | ev_io_stop (EV_A_ &w->io); |
2502 | ev_prepare_stop (EV_A_ &w->prepare); |
3180 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3181 | ev_fork_stop (EV_A_ &w->fork); |
2503 | |
3182 | |
2504 | ev_stop (EV_A_ (W)w); |
3183 | EV_FREQUENT_CHECK; |
2505 | } |
3184 | } |
2506 | #endif |
3185 | #endif |
2507 | |
3186 | |
2508 | #if EV_FORK_ENABLE |
3187 | #if EV_FORK_ENABLE |
2509 | void |
3188 | void |
2510 | ev_fork_start (EV_P_ ev_fork *w) |
3189 | ev_fork_start (EV_P_ ev_fork *w) |
2511 | { |
3190 | { |
2512 | if (expect_false (ev_is_active (w))) |
3191 | if (expect_false (ev_is_active (w))) |
2513 | return; |
3192 | return; |
|
|
3193 | |
|
|
3194 | EV_FREQUENT_CHECK; |
2514 | |
3195 | |
2515 | ev_start (EV_A_ (W)w, ++forkcnt); |
3196 | ev_start (EV_A_ (W)w, ++forkcnt); |
2516 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3197 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2517 | forks [forkcnt - 1] = w; |
3198 | forks [forkcnt - 1] = w; |
|
|
3199 | |
|
|
3200 | EV_FREQUENT_CHECK; |
2518 | } |
3201 | } |
2519 | |
3202 | |
2520 | void |
3203 | void |
2521 | ev_fork_stop (EV_P_ ev_fork *w) |
3204 | ev_fork_stop (EV_P_ ev_fork *w) |
2522 | { |
3205 | { |
2523 | clear_pending (EV_A_ (W)w); |
3206 | clear_pending (EV_A_ (W)w); |
2524 | if (expect_false (!ev_is_active (w))) |
3207 | if (expect_false (!ev_is_active (w))) |
2525 | return; |
3208 | return; |
2526 | |
3209 | |
|
|
3210 | EV_FREQUENT_CHECK; |
|
|
3211 | |
2527 | { |
3212 | { |
2528 | int active = ((W)w)->active; |
3213 | int active = ev_active (w); |
|
|
3214 | |
2529 | forks [active - 1] = forks [--forkcnt]; |
3215 | forks [active - 1] = forks [--forkcnt]; |
2530 | ((W)forks [active - 1])->active = active; |
3216 | ev_active (forks [active - 1]) = active; |
2531 | } |
3217 | } |
2532 | |
3218 | |
2533 | ev_stop (EV_A_ (W)w); |
3219 | ev_stop (EV_A_ (W)w); |
|
|
3220 | |
|
|
3221 | EV_FREQUENT_CHECK; |
2534 | } |
3222 | } |
2535 | #endif |
3223 | #endif |
2536 | |
3224 | |
2537 | #if EV_ASYNC_ENABLE |
3225 | #if EV_ASYNC_ENABLE |
2538 | void |
3226 | void |
… | |
… | |
2540 | { |
3228 | { |
2541 | if (expect_false (ev_is_active (w))) |
3229 | if (expect_false (ev_is_active (w))) |
2542 | return; |
3230 | return; |
2543 | |
3231 | |
2544 | evpipe_init (EV_A); |
3232 | evpipe_init (EV_A); |
|
|
3233 | |
|
|
3234 | EV_FREQUENT_CHECK; |
2545 | |
3235 | |
2546 | ev_start (EV_A_ (W)w, ++asynccnt); |
3236 | ev_start (EV_A_ (W)w, ++asynccnt); |
2547 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3237 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2548 | asyncs [asynccnt - 1] = w; |
3238 | asyncs [asynccnt - 1] = w; |
|
|
3239 | |
|
|
3240 | EV_FREQUENT_CHECK; |
2549 | } |
3241 | } |
2550 | |
3242 | |
2551 | void |
3243 | void |
2552 | ev_async_stop (EV_P_ ev_async *w) |
3244 | ev_async_stop (EV_P_ ev_async *w) |
2553 | { |
3245 | { |
2554 | clear_pending (EV_A_ (W)w); |
3246 | clear_pending (EV_A_ (W)w); |
2555 | if (expect_false (!ev_is_active (w))) |
3247 | if (expect_false (!ev_is_active (w))) |
2556 | return; |
3248 | return; |
2557 | |
3249 | |
|
|
3250 | EV_FREQUENT_CHECK; |
|
|
3251 | |
2558 | { |
3252 | { |
2559 | int active = ((W)w)->active; |
3253 | int active = ev_active (w); |
|
|
3254 | |
2560 | asyncs [active - 1] = asyncs [--asynccnt]; |
3255 | asyncs [active - 1] = asyncs [--asynccnt]; |
2561 | ((W)asyncs [active - 1])->active = active; |
3256 | ev_active (asyncs [active - 1]) = active; |
2562 | } |
3257 | } |
2563 | |
3258 | |
2564 | ev_stop (EV_A_ (W)w); |
3259 | ev_stop (EV_A_ (W)w); |
|
|
3260 | |
|
|
3261 | EV_FREQUENT_CHECK; |
2565 | } |
3262 | } |
2566 | |
3263 | |
2567 | void |
3264 | void |
2568 | ev_async_send (EV_P_ ev_async *w) |
3265 | ev_async_send (EV_P_ ev_async *w) |
2569 | { |
3266 | { |
… | |
… | |
2586 | once_cb (EV_P_ struct ev_once *once, int revents) |
3283 | once_cb (EV_P_ struct ev_once *once, int revents) |
2587 | { |
3284 | { |
2588 | void (*cb)(int revents, void *arg) = once->cb; |
3285 | void (*cb)(int revents, void *arg) = once->cb; |
2589 | void *arg = once->arg; |
3286 | void *arg = once->arg; |
2590 | |
3287 | |
2591 | ev_io_stop (EV_A_ &once->io); |
3288 | ev_io_stop (EV_A_ &once->io); |
2592 | ev_timer_stop (EV_A_ &once->to); |
3289 | ev_timer_stop (EV_A_ &once->to); |
2593 | ev_free (once); |
3290 | ev_free (once); |
2594 | |
3291 | |
2595 | cb (revents, arg); |
3292 | cb (revents, arg); |
2596 | } |
3293 | } |
2597 | |
3294 | |
2598 | static void |
3295 | static void |
2599 | once_cb_io (EV_P_ ev_io *w, int revents) |
3296 | once_cb_io (EV_P_ ev_io *w, int revents) |
2600 | { |
3297 | { |
2601 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3298 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3299 | |
|
|
3300 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2602 | } |
3301 | } |
2603 | |
3302 | |
2604 | static void |
3303 | static void |
2605 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3304 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2606 | { |
3305 | { |
2607 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3306 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3307 | |
|
|
3308 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2608 | } |
3309 | } |
2609 | |
3310 | |
2610 | void |
3311 | void |
2611 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3312 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2612 | { |
3313 | { |
… | |
… | |
2634 | ev_timer_set (&once->to, timeout, 0.); |
3335 | ev_timer_set (&once->to, timeout, 0.); |
2635 | ev_timer_start (EV_A_ &once->to); |
3336 | ev_timer_start (EV_A_ &once->to); |
2636 | } |
3337 | } |
2637 | } |
3338 | } |
2638 | |
3339 | |
|
|
3340 | /*****************************************************************************/ |
|
|
3341 | |
|
|
3342 | #if EV_WALK_ENABLE |
|
|
3343 | void |
|
|
3344 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3345 | { |
|
|
3346 | int i, j; |
|
|
3347 | ev_watcher_list *wl, *wn; |
|
|
3348 | |
|
|
3349 | if (types & (EV_IO | EV_EMBED)) |
|
|
3350 | for (i = 0; i < anfdmax; ++i) |
|
|
3351 | for (wl = anfds [i].head; wl; ) |
|
|
3352 | { |
|
|
3353 | wn = wl->next; |
|
|
3354 | |
|
|
3355 | #if EV_EMBED_ENABLE |
|
|
3356 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3357 | { |
|
|
3358 | if (types & EV_EMBED) |
|
|
3359 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3360 | } |
|
|
3361 | else |
|
|
3362 | #endif |
|
|
3363 | #if EV_USE_INOTIFY |
|
|
3364 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3365 | ; |
|
|
3366 | else |
|
|
3367 | #endif |
|
|
3368 | if ((ev_io *)wl != &pipe_w) |
|
|
3369 | if (types & EV_IO) |
|
|
3370 | cb (EV_A_ EV_IO, wl); |
|
|
3371 | |
|
|
3372 | wl = wn; |
|
|
3373 | } |
|
|
3374 | |
|
|
3375 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3376 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3377 | #if EV_STAT_ENABLE |
|
|
3378 | /*TODO: timer is not always active*/ |
|
|
3379 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3380 | { |
|
|
3381 | if (types & EV_STAT) |
|
|
3382 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3383 | } |
|
|
3384 | else |
|
|
3385 | #endif |
|
|
3386 | if (types & EV_TIMER) |
|
|
3387 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3388 | |
|
|
3389 | #if EV_PERIODIC_ENABLE |
|
|
3390 | if (types & EV_PERIODIC) |
|
|
3391 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3392 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3393 | #endif |
|
|
3394 | |
|
|
3395 | #if EV_IDLE_ENABLE |
|
|
3396 | if (types & EV_IDLE) |
|
|
3397 | for (j = NUMPRI; i--; ) |
|
|
3398 | for (i = idlecnt [j]; i--; ) |
|
|
3399 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3400 | #endif |
|
|
3401 | |
|
|
3402 | #if EV_FORK_ENABLE |
|
|
3403 | if (types & EV_FORK) |
|
|
3404 | for (i = forkcnt; i--; ) |
|
|
3405 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3406 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3407 | #endif |
|
|
3408 | |
|
|
3409 | #if EV_ASYNC_ENABLE |
|
|
3410 | if (types & EV_ASYNC) |
|
|
3411 | for (i = asynccnt; i--; ) |
|
|
3412 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3413 | #endif |
|
|
3414 | |
|
|
3415 | if (types & EV_PREPARE) |
|
|
3416 | for (i = preparecnt; i--; ) |
|
|
3417 | #if EV_EMBED_ENABLE |
|
|
3418 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3419 | #endif |
|
|
3420 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3421 | |
|
|
3422 | if (types & EV_CHECK) |
|
|
3423 | for (i = checkcnt; i--; ) |
|
|
3424 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3425 | |
|
|
3426 | if (types & EV_SIGNAL) |
|
|
3427 | for (i = 0; i < signalmax; ++i) |
|
|
3428 | for (wl = signals [i].head; wl; ) |
|
|
3429 | { |
|
|
3430 | wn = wl->next; |
|
|
3431 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3432 | wl = wn; |
|
|
3433 | } |
|
|
3434 | |
|
|
3435 | if (types & EV_CHILD) |
|
|
3436 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3437 | for (wl = childs [i]; wl; ) |
|
|
3438 | { |
|
|
3439 | wn = wl->next; |
|
|
3440 | cb (EV_A_ EV_CHILD, wl); |
|
|
3441 | wl = wn; |
|
|
3442 | } |
|
|
3443 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3444 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3445 | } |
|
|
3446 | #endif |
|
|
3447 | |
2639 | #if EV_MULTIPLICITY |
3448 | #if EV_MULTIPLICITY |
2640 | #include "ev_wrap.h" |
3449 | #include "ev_wrap.h" |
2641 | #endif |
3450 | #endif |
2642 | |
3451 | |
2643 | #ifdef __cplusplus |
3452 | #ifdef __cplusplus |