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) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
64 | # endif |
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|
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 |
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|
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 |
|
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275 | #endif |
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|
276 | |
|
|
277 | #ifndef EV_VERIFY |
|
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278 | # define EV_VERIFY !EV_MINIMAL |
|
|
279 | #endif |
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280 | |
|
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281 | #ifndef EV_USE_4HEAP |
|
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282 | # define EV_USE_4HEAP !EV_MINIMAL |
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283 | #endif |
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284 | |
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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. */ |
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291 | #if EV_USE_CLOCK_SYSCALL |
|
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292 | # include <syscall.h> |
|
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293 | # ifdef SYS_clock_gettime |
|
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294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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295 | # undef EV_USE_MONOTONIC |
|
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296 | # define EV_USE_MONOTONIC 1 |
|
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297 | # else |
|
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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> |
|
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330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
331 | # ifndef IN_DONT_FOLLOW |
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332 | # undef EV_USE_INOTIFY |
|
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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 | /**/ |
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354 | |
|
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355 | #if EV_VERIFY >= 3 |
|
|
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
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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) |
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|
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 |
|
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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? */ |
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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 | /* file descriptor info structure */ |
407 | typedef struct |
496 | typedef struct |
408 | { |
497 | { |
409 | WL head; |
498 | WL head; |
410 | unsigned char events; |
499 | unsigned char events; /* the events watched for */ |
|
|
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
|
|
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
411 | unsigned char reify; |
502 | unsigned char unused; |
|
|
503 | #if EV_USE_EPOLL |
|
|
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
505 | #endif |
412 | #if EV_SELECT_IS_WINSOCKET |
506 | #if EV_SELECT_IS_WINSOCKET |
413 | SOCKET handle; |
507 | SOCKET handle; |
414 | #endif |
508 | #endif |
415 | } ANFD; |
509 | } ANFD; |
416 | |
510 | |
|
|
511 | /* stores the pending event set for a given watcher */ |
417 | typedef struct |
512 | typedef struct |
418 | { |
513 | { |
419 | W w; |
514 | W w; |
420 | int events; |
515 | int events; /* the pending event set for the given watcher */ |
421 | } ANPENDING; |
516 | } ANPENDING; |
422 | |
517 | |
423 | #if EV_USE_INOTIFY |
518 | #if EV_USE_INOTIFY |
|
|
519 | /* hash table entry per inotify-id */ |
424 | typedef struct |
520 | typedef struct |
425 | { |
521 | { |
426 | WL head; |
522 | WL head; |
427 | } ANFS; |
523 | } ANFS; |
|
|
524 | #endif |
|
|
525 | |
|
|
526 | /* Heap Entry */ |
|
|
527 | #if EV_HEAP_CACHE_AT |
|
|
528 | /* a heap element */ |
|
|
529 | typedef struct { |
|
|
530 | ev_tstamp at; |
|
|
531 | WT w; |
|
|
532 | } ANHE; |
|
|
533 | |
|
|
534 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
535 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
536 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
537 | #else |
|
|
538 | /* a heap element */ |
|
|
539 | typedef WT ANHE; |
|
|
540 | |
|
|
541 | #define ANHE_w(he) (he) |
|
|
542 | #define ANHE_at(he) (he)->at |
|
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543 | #define ANHE_at_cache(he) |
428 | #endif |
544 | #endif |
429 | |
545 | |
430 | #if EV_MULTIPLICITY |
546 | #if EV_MULTIPLICITY |
431 | |
547 | |
432 | struct ev_loop |
548 | struct ev_loop |
… | |
… | |
453 | |
569 | |
454 | #endif |
570 | #endif |
455 | |
571 | |
456 | /*****************************************************************************/ |
572 | /*****************************************************************************/ |
457 | |
573 | |
|
|
574 | #ifndef EV_HAVE_EV_TIME |
458 | ev_tstamp |
575 | ev_tstamp |
459 | ev_time (void) |
576 | ev_time (void) |
460 | { |
577 | { |
461 | #if EV_USE_REALTIME |
578 | #if EV_USE_REALTIME |
|
|
579 | if (expect_true (have_realtime)) |
|
|
580 | { |
462 | struct timespec ts; |
581 | struct timespec ts; |
463 | clock_gettime (CLOCK_REALTIME, &ts); |
582 | clock_gettime (CLOCK_REALTIME, &ts); |
464 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
583 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
465 | #else |
584 | } |
|
|
585 | #endif |
|
|
586 | |
466 | struct timeval tv; |
587 | struct timeval tv; |
467 | gettimeofday (&tv, 0); |
588 | gettimeofday (&tv, 0); |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
589 | return tv.tv_sec + tv.tv_usec * 1e-6; |
469 | #endif |
|
|
470 | } |
590 | } |
|
|
591 | #endif |
471 | |
592 | |
472 | ev_tstamp inline_size |
593 | inline_size ev_tstamp |
473 | get_clock (void) |
594 | get_clock (void) |
474 | { |
595 | { |
475 | #if EV_USE_MONOTONIC |
596 | #if EV_USE_MONOTONIC |
476 | if (expect_true (have_monotonic)) |
597 | if (expect_true (have_monotonic)) |
477 | { |
598 | { |
… | |
… | |
510 | struct timeval tv; |
631 | struct timeval tv; |
511 | |
632 | |
512 | tv.tv_sec = (time_t)delay; |
633 | tv.tv_sec = (time_t)delay; |
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
514 | |
635 | |
|
|
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
|
|
638 | /* by older ones */ |
515 | select (0, 0, 0, 0, &tv); |
639 | select (0, 0, 0, 0, &tv); |
516 | #endif |
640 | #endif |
517 | } |
641 | } |
518 | } |
642 | } |
519 | |
643 | |
520 | /*****************************************************************************/ |
644 | /*****************************************************************************/ |
521 | |
645 | |
522 | int inline_size |
646 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
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647 | |
|
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648 | /* find a suitable new size for the given array, */ |
|
|
649 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
650 | inline_size int |
523 | array_nextsize (int elem, int cur, int cnt) |
651 | array_nextsize (int elem, int cur, int cnt) |
524 | { |
652 | { |
525 | int ncur = cur + 1; |
653 | int ncur = cur + 1; |
526 | |
654 | |
527 | do |
655 | do |
528 | ncur <<= 1; |
656 | ncur <<= 1; |
529 | while (cnt > ncur); |
657 | while (cnt > ncur); |
530 | |
658 | |
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
659 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
532 | if (elem * ncur > 4096) |
660 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
533 | { |
661 | { |
534 | ncur *= elem; |
662 | ncur *= elem; |
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
663 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
536 | ncur = ncur - sizeof (void *) * 4; |
664 | ncur = ncur - sizeof (void *) * 4; |
537 | ncur /= elem; |
665 | ncur /= elem; |
538 | } |
666 | } |
539 | |
667 | |
540 | return ncur; |
668 | return ncur; |
… | |
… | |
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
672 | array_realloc (int elem, void *base, int *cur, int cnt) |
545 | { |
673 | { |
546 | *cur = array_nextsize (elem, *cur, cnt); |
674 | *cur = array_nextsize (elem, *cur, cnt); |
547 | return ev_realloc (base, elem * *cur); |
675 | return ev_realloc (base, elem * *cur); |
548 | } |
676 | } |
|
|
677 | |
|
|
678 | #define array_init_zero(base,count) \ |
|
|
679 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
549 | |
680 | |
550 | #define array_needsize(type,base,cur,cnt,init) \ |
681 | #define array_needsize(type,base,cur,cnt,init) \ |
551 | if (expect_false ((cnt) > (cur))) \ |
682 | if (expect_false ((cnt) > (cur))) \ |
552 | { \ |
683 | { \ |
553 | int ocur_ = (cur); \ |
684 | int ocur_ = (cur); \ |
… | |
… | |
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
696 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
566 | } |
697 | } |
567 | #endif |
698 | #endif |
568 | |
699 | |
569 | #define array_free(stem, idx) \ |
700 | #define array_free(stem, idx) \ |
570 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
701 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
571 | |
702 | |
572 | /*****************************************************************************/ |
703 | /*****************************************************************************/ |
|
|
704 | |
|
|
705 | /* dummy callback for pending events */ |
|
|
706 | static void noinline |
|
|
707 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
708 | { |
|
|
709 | } |
573 | |
710 | |
574 | void noinline |
711 | void noinline |
575 | ev_feed_event (EV_P_ void *w, int revents) |
712 | ev_feed_event (EV_P_ void *w, int revents) |
576 | { |
713 | { |
577 | W w_ = (W)w; |
714 | W w_ = (W)w; |
… | |
… | |
586 | pendings [pri][w_->pending - 1].w = w_; |
723 | pendings [pri][w_->pending - 1].w = w_; |
587 | pendings [pri][w_->pending - 1].events = revents; |
724 | pendings [pri][w_->pending - 1].events = revents; |
588 | } |
725 | } |
589 | } |
726 | } |
590 | |
727 | |
591 | void inline_speed |
728 | inline_speed void |
|
|
729 | feed_reverse (EV_P_ W w) |
|
|
730 | { |
|
|
731 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
732 | rfeeds [rfeedcnt++] = w; |
|
|
733 | } |
|
|
734 | |
|
|
735 | inline_size void |
|
|
736 | feed_reverse_done (EV_P_ int revents) |
|
|
737 | { |
|
|
738 | do |
|
|
739 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
740 | while (rfeedcnt); |
|
|
741 | } |
|
|
742 | |
|
|
743 | inline_speed void |
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
744 | queue_events (EV_P_ W *events, int eventcnt, int type) |
593 | { |
745 | { |
594 | int i; |
746 | int i; |
595 | |
747 | |
596 | for (i = 0; i < eventcnt; ++i) |
748 | for (i = 0; i < eventcnt; ++i) |
597 | ev_feed_event (EV_A_ events [i], type); |
749 | ev_feed_event (EV_A_ events [i], type); |
598 | } |
750 | } |
599 | |
751 | |
600 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
601 | |
753 | |
602 | void inline_size |
754 | 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) |
755 | fd_event (EV_P_ int fd, int revents) |
617 | { |
756 | { |
618 | ANFD *anfd = anfds + fd; |
757 | ANFD *anfd = anfds + fd; |
619 | ev_io *w; |
758 | ev_io *w; |
620 | |
759 | |
… | |
… | |
632 | { |
771 | { |
633 | if (fd >= 0 && fd < anfdmax) |
772 | if (fd >= 0 && fd < anfdmax) |
634 | fd_event (EV_A_ fd, revents); |
773 | fd_event (EV_A_ fd, revents); |
635 | } |
774 | } |
636 | |
775 | |
637 | void inline_size |
776 | /* make sure the external fd watch events are in-sync */ |
|
|
777 | /* with the kernel/libev internal state */ |
|
|
778 | inline_size void |
638 | fd_reify (EV_P) |
779 | fd_reify (EV_P) |
639 | { |
780 | { |
640 | int i; |
781 | int i; |
641 | |
782 | |
642 | for (i = 0; i < fdchangecnt; ++i) |
783 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
651 | events |= (unsigned char)w->events; |
792 | events |= (unsigned char)w->events; |
652 | |
793 | |
653 | #if EV_SELECT_IS_WINSOCKET |
794 | #if EV_SELECT_IS_WINSOCKET |
654 | if (events) |
795 | if (events) |
655 | { |
796 | { |
656 | unsigned long argp; |
797 | unsigned long arg; |
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
659 | #else |
800 | #else |
660 | anfd->handle = _get_osfhandle (fd); |
801 | anfd->handle = _get_osfhandle (fd); |
661 | #endif |
802 | #endif |
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
663 | } |
804 | } |
664 | #endif |
805 | #endif |
665 | |
806 | |
666 | { |
807 | { |
667 | unsigned char o_events = anfd->events; |
808 | unsigned char o_events = anfd->events; |
668 | unsigned char o_reify = anfd->reify; |
809 | unsigned char o_reify = anfd->reify; |
669 | |
810 | |
670 | anfd->reify = 0; |
811 | anfd->reify = 0; |
671 | anfd->events = events; |
812 | anfd->events = events; |
672 | |
813 | |
673 | if (o_events != events || o_reify & EV_IOFDSET) |
814 | if (o_events != events || o_reify & EV__IOFDSET) |
674 | backend_modify (EV_A_ fd, o_events, events); |
815 | backend_modify (EV_A_ fd, o_events, events); |
675 | } |
816 | } |
676 | } |
817 | } |
677 | |
818 | |
678 | fdchangecnt = 0; |
819 | fdchangecnt = 0; |
679 | } |
820 | } |
680 | |
821 | |
681 | void inline_size |
822 | /* something about the given fd changed */ |
|
|
823 | inline_size void |
682 | fd_change (EV_P_ int fd, int flags) |
824 | fd_change (EV_P_ int fd, int flags) |
683 | { |
825 | { |
684 | unsigned char reify = anfds [fd].reify; |
826 | unsigned char reify = anfds [fd].reify; |
685 | anfds [fd].reify |= flags; |
827 | anfds [fd].reify |= flags; |
686 | |
828 | |
… | |
… | |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
832 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
691 | fdchanges [fdchangecnt - 1] = fd; |
833 | fdchanges [fdchangecnt - 1] = fd; |
692 | } |
834 | } |
693 | } |
835 | } |
694 | |
836 | |
695 | void inline_speed |
837 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
838 | inline_speed void |
696 | fd_kill (EV_P_ int fd) |
839 | fd_kill (EV_P_ int fd) |
697 | { |
840 | { |
698 | ev_io *w; |
841 | ev_io *w; |
699 | |
842 | |
700 | while ((w = (ev_io *)anfds [fd].head)) |
843 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
702 | ev_io_stop (EV_A_ w); |
845 | ev_io_stop (EV_A_ w); |
703 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
846 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
704 | } |
847 | } |
705 | } |
848 | } |
706 | |
849 | |
707 | int inline_size |
850 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
851 | inline_size int |
708 | fd_valid (int fd) |
852 | fd_valid (int fd) |
709 | { |
853 | { |
710 | #ifdef _WIN32 |
854 | #ifdef _WIN32 |
711 | return _get_osfhandle (fd) != -1; |
855 | return _get_osfhandle (fd) != -1; |
712 | #else |
856 | #else |
… | |
… | |
720 | { |
864 | { |
721 | int fd; |
865 | int fd; |
722 | |
866 | |
723 | for (fd = 0; fd < anfdmax; ++fd) |
867 | for (fd = 0; fd < anfdmax; ++fd) |
724 | if (anfds [fd].events) |
868 | if (anfds [fd].events) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
869 | if (!fd_valid (fd) && errno == EBADF) |
726 | fd_kill (EV_A_ fd); |
870 | fd_kill (EV_A_ fd); |
727 | } |
871 | } |
728 | |
872 | |
729 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
873 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
730 | static void noinline |
874 | static void noinline |
… | |
… | |
748 | |
892 | |
749 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
750 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
751 | { |
895 | { |
752 | anfds [fd].events = 0; |
896 | anfds [fd].events = 0; |
|
|
897 | anfds [fd].emask = 0; |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
754 | } |
899 | } |
755 | } |
900 | } |
756 | |
901 | |
757 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
758 | |
903 | |
759 | void inline_speed |
904 | /* |
760 | upheap (WT *heap, int k) |
905 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
761 | { |
906 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
762 | WT w = heap [k]; |
907 | * the branching factor of the d-tree. |
|
|
908 | */ |
763 | |
909 | |
764 | while (k) |
910 | /* |
765 | { |
911 | * at the moment we allow libev the luxury of two heaps, |
766 | int p = (k - 1) >> 1; |
912 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
913 | * which is more cache-efficient. |
|
|
914 | * the difference is about 5% with 50000+ watchers. |
|
|
915 | */ |
|
|
916 | #if EV_USE_4HEAP |
767 | |
917 | |
768 | if (heap [p]->at <= w->at) |
918 | #define DHEAP 4 |
|
|
919 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
920 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
921 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
922 | |
|
|
923 | /* away from the root */ |
|
|
924 | inline_speed void |
|
|
925 | downheap (ANHE *heap, int N, int k) |
|
|
926 | { |
|
|
927 | ANHE he = heap [k]; |
|
|
928 | ANHE *E = heap + N + HEAP0; |
|
|
929 | |
|
|
930 | for (;;) |
|
|
931 | { |
|
|
932 | ev_tstamp minat; |
|
|
933 | ANHE *minpos; |
|
|
934 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
935 | |
|
|
936 | /* find minimum child */ |
|
|
937 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
938 | { |
|
|
939 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
940 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
941 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
942 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
943 | } |
|
|
944 | else if (pos < E) |
|
|
945 | { |
|
|
946 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
947 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
948 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
949 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
950 | } |
|
|
951 | else |
769 | break; |
952 | break; |
770 | |
953 | |
|
|
954 | if (ANHE_at (he) <= minat) |
|
|
955 | break; |
|
|
956 | |
|
|
957 | heap [k] = *minpos; |
|
|
958 | ev_active (ANHE_w (*minpos)) = k; |
|
|
959 | |
|
|
960 | k = minpos - heap; |
|
|
961 | } |
|
|
962 | |
|
|
963 | heap [k] = he; |
|
|
964 | ev_active (ANHE_w (he)) = k; |
|
|
965 | } |
|
|
966 | |
|
|
967 | #else /* 4HEAP */ |
|
|
968 | |
|
|
969 | #define HEAP0 1 |
|
|
970 | #define HPARENT(k) ((k) >> 1) |
|
|
971 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
972 | |
|
|
973 | /* away from the root */ |
|
|
974 | inline_speed void |
|
|
975 | downheap (ANHE *heap, int N, int k) |
|
|
976 | { |
|
|
977 | ANHE he = heap [k]; |
|
|
978 | |
|
|
979 | for (;;) |
|
|
980 | { |
|
|
981 | int c = k << 1; |
|
|
982 | |
|
|
983 | if (c > N + HEAP0 - 1) |
|
|
984 | break; |
|
|
985 | |
|
|
986 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
987 | ? 1 : 0; |
|
|
988 | |
|
|
989 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
990 | break; |
|
|
991 | |
|
|
992 | heap [k] = heap [c]; |
|
|
993 | ev_active (ANHE_w (heap [k])) = k; |
|
|
994 | |
|
|
995 | k = c; |
|
|
996 | } |
|
|
997 | |
|
|
998 | heap [k] = he; |
|
|
999 | ev_active (ANHE_w (he)) = k; |
|
|
1000 | } |
|
|
1001 | #endif |
|
|
1002 | |
|
|
1003 | /* towards the root */ |
|
|
1004 | inline_speed void |
|
|
1005 | upheap (ANHE *heap, int k) |
|
|
1006 | { |
|
|
1007 | ANHE he = heap [k]; |
|
|
1008 | |
|
|
1009 | for (;;) |
|
|
1010 | { |
|
|
1011 | int p = HPARENT (k); |
|
|
1012 | |
|
|
1013 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1014 | break; |
|
|
1015 | |
771 | heap [k] = heap [p]; |
1016 | heap [k] = heap [p]; |
772 | ((W)heap [k])->active = k + 1; |
1017 | ev_active (ANHE_w (heap [k])) = k; |
773 | k = p; |
1018 | k = p; |
774 | } |
1019 | } |
775 | |
1020 | |
776 | heap [k] = w; |
1021 | heap [k] = he; |
777 | ((W)heap [k])->active = k + 1; |
1022 | ev_active (ANHE_w (he)) = k; |
778 | } |
1023 | } |
779 | |
1024 | |
780 | void inline_speed |
1025 | /* move an element suitably so it is in a correct place */ |
781 | downheap (WT *heap, int N, int k) |
1026 | 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) |
1027 | adjustheap (ANHE *heap, int N, int k) |
810 | { |
1028 | { |
|
|
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
811 | upheap (heap, k); |
1030 | upheap (heap, k); |
|
|
1031 | else |
812 | downheap (heap, N, k); |
1032 | downheap (heap, N, k); |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1036 | inline_size void |
|
|
1037 | reheap (ANHE *heap, int N) |
|
|
1038 | { |
|
|
1039 | int i; |
|
|
1040 | |
|
|
1041 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1042 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1043 | for (i = 0; i < N; ++i) |
|
|
1044 | upheap (heap, i + HEAP0); |
813 | } |
1045 | } |
814 | |
1046 | |
815 | /*****************************************************************************/ |
1047 | /*****************************************************************************/ |
816 | |
1048 | |
|
|
1049 | /* associate signal watchers to a signal signal */ |
817 | typedef struct |
1050 | typedef struct |
818 | { |
1051 | { |
819 | WL head; |
1052 | WL head; |
820 | EV_ATOMIC_T gotsig; |
1053 | EV_ATOMIC_T gotsig; |
821 | } ANSIG; |
1054 | } ANSIG; |
… | |
… | |
823 | static ANSIG *signals; |
1056 | static ANSIG *signals; |
824 | static int signalmax; |
1057 | static int signalmax; |
825 | |
1058 | |
826 | static EV_ATOMIC_T gotsig; |
1059 | static EV_ATOMIC_T gotsig; |
827 | |
1060 | |
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 | /*****************************************************************************/ |
1061 | /*****************************************************************************/ |
841 | |
1062 | |
842 | void inline_speed |
1063 | /* used to prepare libev internal fd's */ |
|
|
1064 | /* this is not fork-safe */ |
|
|
1065 | inline_speed void |
843 | fd_intern (int fd) |
1066 | fd_intern (int fd) |
844 | { |
1067 | { |
845 | #ifdef _WIN32 |
1068 | #ifdef _WIN32 |
846 | int arg = 1; |
1069 | unsigned long arg = 1; |
847 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1070 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
848 | #else |
1071 | #else |
849 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1072 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1073 | fcntl (fd, F_SETFL, O_NONBLOCK); |
851 | #endif |
1074 | #endif |
852 | } |
1075 | } |
853 | |
1076 | |
854 | static void noinline |
1077 | static void noinline |
855 | evpipe_init (EV_P) |
1078 | evpipe_init (EV_P) |
856 | { |
1079 | { |
857 | if (!ev_is_active (&pipeev)) |
1080 | if (!ev_is_active (&pipe_w)) |
858 | { |
1081 | { |
859 | #if EV_USE_EVENTFD |
1082 | #if EV_USE_EVENTFD |
860 | if ((evfd = eventfd (0, 0)) >= 0) |
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
861 | { |
1084 | { |
862 | evpipe [0] = -1; |
1085 | evpipe [0] = -1; |
863 | fd_intern (evfd); |
1086 | fd_intern (evfd); |
864 | ev_io_set (&pipeev, evfd, EV_READ); |
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
865 | } |
1088 | } |
866 | else |
1089 | else |
867 | #endif |
1090 | #endif |
868 | { |
1091 | { |
869 | while (pipe (evpipe)) |
1092 | while (pipe (evpipe)) |
870 | syserr ("(libev) error creating signal/async pipe"); |
1093 | ev_syserr ("(libev) error creating signal/async pipe"); |
871 | |
1094 | |
872 | fd_intern (evpipe [0]); |
1095 | fd_intern (evpipe [0]); |
873 | fd_intern (evpipe [1]); |
1096 | fd_intern (evpipe [1]); |
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1097 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
875 | } |
1098 | } |
876 | |
1099 | |
877 | ev_io_start (EV_A_ &pipeev); |
1100 | ev_io_start (EV_A_ &pipe_w); |
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1101 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
879 | } |
1102 | } |
880 | } |
1103 | } |
881 | |
1104 | |
882 | void inline_size |
1105 | inline_size void |
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1106 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
884 | { |
1107 | { |
885 | if (!*flag) |
1108 | if (!*flag) |
886 | { |
1109 | { |
887 | int old_errno = errno; /* save errno because write might clobber it */ |
1110 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
900 | |
1123 | |
901 | errno = old_errno; |
1124 | errno = old_errno; |
902 | } |
1125 | } |
903 | } |
1126 | } |
904 | |
1127 | |
|
|
1128 | /* called whenever the libev signal pipe */ |
|
|
1129 | /* got some events (signal, async) */ |
905 | static void |
1130 | static void |
906 | pipecb (EV_P_ ev_io *iow, int revents) |
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
907 | { |
1132 | { |
908 | #if EV_USE_EVENTFD |
1133 | #if EV_USE_EVENTFD |
909 | if (evfd >= 0) |
1134 | if (evfd >= 0) |
910 | { |
1135 | { |
911 | uint64_t counter = 1; |
1136 | uint64_t counter; |
912 | read (evfd, &counter, sizeof (uint64_t)); |
1137 | read (evfd, &counter, sizeof (uint64_t)); |
913 | } |
1138 | } |
914 | else |
1139 | else |
915 | #endif |
1140 | #endif |
916 | { |
1141 | { |
… | |
… | |
965 | ev_feed_signal_event (EV_P_ int signum) |
1190 | ev_feed_signal_event (EV_P_ int signum) |
966 | { |
1191 | { |
967 | WL w; |
1192 | WL w; |
968 | |
1193 | |
969 | #if EV_MULTIPLICITY |
1194 | #if EV_MULTIPLICITY |
970 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
971 | #endif |
1196 | #endif |
972 | |
1197 | |
973 | --signum; |
1198 | --signum; |
974 | |
1199 | |
975 | if (signum < 0 || signum >= signalmax) |
1200 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
991 | |
1216 | |
992 | #ifndef WIFCONTINUED |
1217 | #ifndef WIFCONTINUED |
993 | # define WIFCONTINUED(status) 0 |
1218 | # define WIFCONTINUED(status) 0 |
994 | #endif |
1219 | #endif |
995 | |
1220 | |
996 | void inline_speed |
1221 | /* handle a single child status event */ |
|
|
1222 | inline_speed void |
997 | child_reap (EV_P_ int chain, int pid, int status) |
1223 | child_reap (EV_P_ int chain, int pid, int status) |
998 | { |
1224 | { |
999 | ev_child *w; |
1225 | ev_child *w; |
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1226 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1001 | |
1227 | |
… | |
… | |
1014 | |
1240 | |
1015 | #ifndef WCONTINUED |
1241 | #ifndef WCONTINUED |
1016 | # define WCONTINUED 0 |
1242 | # define WCONTINUED 0 |
1017 | #endif |
1243 | #endif |
1018 | |
1244 | |
|
|
1245 | /* called on sigchld etc., calls waitpid */ |
1019 | static void |
1246 | static void |
1020 | childcb (EV_P_ ev_signal *sw, int revents) |
1247 | childcb (EV_P_ ev_signal *sw, int revents) |
1021 | { |
1248 | { |
1022 | int pid, status; |
1249 | int pid, status; |
1023 | |
1250 | |
… | |
… | |
1104 | /* kqueue is borked on everything but netbsd apparently */ |
1331 | /* kqueue is borked on everything but netbsd apparently */ |
1105 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1332 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1106 | flags &= ~EVBACKEND_KQUEUE; |
1333 | flags &= ~EVBACKEND_KQUEUE; |
1107 | #endif |
1334 | #endif |
1108 | #ifdef __APPLE__ |
1335 | #ifdef __APPLE__ |
1109 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1336 | /* only select works correctly on that "unix-certified" platform */ |
1110 | flags &= ~EVBACKEND_POLL; |
1337 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1338 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1111 | #endif |
1339 | #endif |
1112 | |
1340 | |
1113 | return flags; |
1341 | return flags; |
1114 | } |
1342 | } |
1115 | |
1343 | |
… | |
… | |
1135 | ev_loop_count (EV_P) |
1363 | ev_loop_count (EV_P) |
1136 | { |
1364 | { |
1137 | return loop_count; |
1365 | return loop_count; |
1138 | } |
1366 | } |
1139 | |
1367 | |
|
|
1368 | unsigned int |
|
|
1369 | ev_loop_depth (EV_P) |
|
|
1370 | { |
|
|
1371 | return loop_depth; |
|
|
1372 | } |
|
|
1373 | |
1140 | void |
1374 | void |
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1375 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1142 | { |
1376 | { |
1143 | io_blocktime = interval; |
1377 | io_blocktime = interval; |
1144 | } |
1378 | } |
… | |
… | |
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1148 | { |
1382 | { |
1149 | timeout_blocktime = interval; |
1383 | timeout_blocktime = interval; |
1150 | } |
1384 | } |
1151 | |
1385 | |
|
|
1386 | /* initialise a loop structure, must be zero-initialised */ |
1152 | static void noinline |
1387 | static void noinline |
1153 | loop_init (EV_P_ unsigned int flags) |
1388 | loop_init (EV_P_ unsigned int flags) |
1154 | { |
1389 | { |
1155 | if (!backend) |
1390 | if (!backend) |
1156 | { |
1391 | { |
|
|
1392 | #if EV_USE_REALTIME |
|
|
1393 | if (!have_realtime) |
|
|
1394 | { |
|
|
1395 | struct timespec ts; |
|
|
1396 | |
|
|
1397 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1398 | have_realtime = 1; |
|
|
1399 | } |
|
|
1400 | #endif |
|
|
1401 | |
1157 | #if EV_USE_MONOTONIC |
1402 | #if EV_USE_MONOTONIC |
|
|
1403 | if (!have_monotonic) |
1158 | { |
1404 | { |
1159 | struct timespec ts; |
1405 | struct timespec ts; |
|
|
1406 | |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1161 | have_monotonic = 1; |
1408 | have_monotonic = 1; |
1162 | } |
1409 | } |
1163 | #endif |
1410 | #endif |
1164 | |
1411 | |
1165 | ev_rt_now = ev_time (); |
1412 | ev_rt_now = ev_time (); |
1166 | mn_now = get_clock (); |
1413 | mn_now = get_clock (); |
1167 | now_floor = mn_now; |
1414 | now_floor = mn_now; |
… | |
… | |
1185 | if (!(flags & EVFLAG_NOENV) |
1432 | if (!(flags & EVFLAG_NOENV) |
1186 | && !enable_secure () |
1433 | && !enable_secure () |
1187 | && getenv ("LIBEV_FLAGS")) |
1434 | && getenv ("LIBEV_FLAGS")) |
1188 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1435 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1189 | |
1436 | |
1190 | if (!(flags & 0x0000ffffUL)) |
1437 | if (!(flags & 0x0000ffffU)) |
1191 | flags |= ev_recommended_backends (); |
1438 | flags |= ev_recommended_backends (); |
1192 | |
1439 | |
1193 | #if EV_USE_PORT |
1440 | #if EV_USE_PORT |
1194 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1441 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1195 | #endif |
1442 | #endif |
… | |
… | |
1204 | #endif |
1451 | #endif |
1205 | #if EV_USE_SELECT |
1452 | #if EV_USE_SELECT |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1453 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1207 | #endif |
1454 | #endif |
1208 | |
1455 | |
|
|
1456 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1457 | |
1209 | ev_init (&pipeev, pipecb); |
1458 | ev_init (&pipe_w, pipecb); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
1459 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1211 | } |
1460 | } |
1212 | } |
1461 | } |
1213 | |
1462 | |
|
|
1463 | /* free up a loop structure */ |
1214 | static void noinline |
1464 | static void noinline |
1215 | loop_destroy (EV_P) |
1465 | loop_destroy (EV_P) |
1216 | { |
1466 | { |
1217 | int i; |
1467 | int i; |
1218 | |
1468 | |
1219 | if (ev_is_active (&pipeev)) |
1469 | if (ev_is_active (&pipe_w)) |
1220 | { |
1470 | { |
1221 | ev_ref (EV_A); /* signal watcher */ |
1471 | ev_ref (EV_A); /* signal watcher */ |
1222 | ev_io_stop (EV_A_ &pipeev); |
1472 | ev_io_stop (EV_A_ &pipe_w); |
1223 | |
1473 | |
1224 | #if EV_USE_EVENTFD |
1474 | #if EV_USE_EVENTFD |
1225 | if (evfd >= 0) |
1475 | if (evfd >= 0) |
1226 | close (evfd); |
1476 | close (evfd); |
1227 | #endif |
1477 | #endif |
… | |
… | |
1266 | } |
1516 | } |
1267 | |
1517 | |
1268 | ev_free (anfds); anfdmax = 0; |
1518 | ev_free (anfds); anfdmax = 0; |
1269 | |
1519 | |
1270 | /* have to use the microsoft-never-gets-it-right macro */ |
1520 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1521 | array_free (rfeed, EMPTY); |
1271 | array_free (fdchange, EMPTY); |
1522 | array_free (fdchange, EMPTY); |
1272 | array_free (timer, EMPTY); |
1523 | array_free (timer, EMPTY); |
1273 | #if EV_PERIODIC_ENABLE |
1524 | #if EV_PERIODIC_ENABLE |
1274 | array_free (periodic, EMPTY); |
1525 | array_free (periodic, EMPTY); |
1275 | #endif |
1526 | #endif |
… | |
… | |
1283 | #endif |
1534 | #endif |
1284 | |
1535 | |
1285 | backend = 0; |
1536 | backend = 0; |
1286 | } |
1537 | } |
1287 | |
1538 | |
|
|
1539 | #if EV_USE_INOTIFY |
1288 | void inline_size infy_fork (EV_P); |
1540 | inline_size void infy_fork (EV_P); |
|
|
1541 | #endif |
1289 | |
1542 | |
1290 | void inline_size |
1543 | inline_size void |
1291 | loop_fork (EV_P) |
1544 | loop_fork (EV_P) |
1292 | { |
1545 | { |
1293 | #if EV_USE_PORT |
1546 | #if EV_USE_PORT |
1294 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1547 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1295 | #endif |
1548 | #endif |
… | |
… | |
1301 | #endif |
1554 | #endif |
1302 | #if EV_USE_INOTIFY |
1555 | #if EV_USE_INOTIFY |
1303 | infy_fork (EV_A); |
1556 | infy_fork (EV_A); |
1304 | #endif |
1557 | #endif |
1305 | |
1558 | |
1306 | if (ev_is_active (&pipeev)) |
1559 | if (ev_is_active (&pipe_w)) |
1307 | { |
1560 | { |
1308 | /* this "locks" the handlers against writing to the pipe */ |
1561 | /* this "locks" the handlers against writing to the pipe */ |
1309 | /* while we modify the fd vars */ |
1562 | /* while we modify the fd vars */ |
1310 | gotsig = 1; |
1563 | gotsig = 1; |
1311 | #if EV_ASYNC_ENABLE |
1564 | #if EV_ASYNC_ENABLE |
1312 | gotasync = 1; |
1565 | gotasync = 1; |
1313 | #endif |
1566 | #endif |
1314 | |
1567 | |
1315 | ev_ref (EV_A); |
1568 | ev_ref (EV_A); |
1316 | ev_io_stop (EV_A_ &pipeev); |
1569 | ev_io_stop (EV_A_ &pipe_w); |
1317 | |
1570 | |
1318 | #if EV_USE_EVENTFD |
1571 | #if EV_USE_EVENTFD |
1319 | if (evfd >= 0) |
1572 | if (evfd >= 0) |
1320 | close (evfd); |
1573 | close (evfd); |
1321 | #endif |
1574 | #endif |
… | |
… | |
1326 | close (evpipe [1]); |
1579 | close (evpipe [1]); |
1327 | } |
1580 | } |
1328 | |
1581 | |
1329 | evpipe_init (EV_A); |
1582 | evpipe_init (EV_A); |
1330 | /* now iterate over everything, in case we missed something */ |
1583 | /* now iterate over everything, in case we missed something */ |
1331 | pipecb (EV_A_ &pipeev, EV_READ); |
1584 | pipecb (EV_A_ &pipe_w, EV_READ); |
1332 | } |
1585 | } |
1333 | |
1586 | |
1334 | postfork = 0; |
1587 | postfork = 0; |
1335 | } |
1588 | } |
1336 | |
1589 | |
1337 | #if EV_MULTIPLICITY |
1590 | #if EV_MULTIPLICITY |
|
|
1591 | |
1338 | struct ev_loop * |
1592 | struct ev_loop * |
1339 | ev_loop_new (unsigned int flags) |
1593 | ev_loop_new (unsigned int flags) |
1340 | { |
1594 | { |
1341 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1595 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1342 | |
1596 | |
… | |
… | |
1361 | ev_loop_fork (EV_P) |
1615 | ev_loop_fork (EV_P) |
1362 | { |
1616 | { |
1363 | postfork = 1; /* must be in line with ev_default_fork */ |
1617 | postfork = 1; /* must be in line with ev_default_fork */ |
1364 | } |
1618 | } |
1365 | |
1619 | |
|
|
1620 | #if EV_VERIFY |
|
|
1621 | static void noinline |
|
|
1622 | verify_watcher (EV_P_ W w) |
|
|
1623 | { |
|
|
1624 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1625 | |
|
|
1626 | if (w->pending) |
|
|
1627 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1628 | } |
|
|
1629 | |
|
|
1630 | static void noinline |
|
|
1631 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1632 | { |
|
|
1633 | int i; |
|
|
1634 | |
|
|
1635 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1636 | { |
|
|
1637 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1638 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1639 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1640 | |
|
|
1641 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1642 | } |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | static void noinline |
|
|
1646 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1647 | { |
|
|
1648 | while (cnt--) |
|
|
1649 | { |
|
|
1650 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1651 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1652 | } |
|
|
1653 | } |
|
|
1654 | #endif |
|
|
1655 | |
|
|
1656 | void |
|
|
1657 | ev_loop_verify (EV_P) |
|
|
1658 | { |
|
|
1659 | #if EV_VERIFY |
|
|
1660 | int i; |
|
|
1661 | WL w; |
|
|
1662 | |
|
|
1663 | assert (activecnt >= -1); |
|
|
1664 | |
|
|
1665 | assert (fdchangemax >= fdchangecnt); |
|
|
1666 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1667 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1668 | |
|
|
1669 | assert (anfdmax >= 0); |
|
|
1670 | for (i = 0; i < anfdmax; ++i) |
|
|
1671 | for (w = anfds [i].head; w; w = w->next) |
|
|
1672 | { |
|
|
1673 | verify_watcher (EV_A_ (W)w); |
|
|
1674 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1675 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | assert (timermax >= timercnt); |
|
|
1679 | verify_heap (EV_A_ timers, timercnt); |
|
|
1680 | |
|
|
1681 | #if EV_PERIODIC_ENABLE |
|
|
1682 | assert (periodicmax >= periodiccnt); |
|
|
1683 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1684 | #endif |
|
|
1685 | |
|
|
1686 | for (i = NUMPRI; i--; ) |
|
|
1687 | { |
|
|
1688 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1689 | #if EV_IDLE_ENABLE |
|
|
1690 | assert (idleall >= 0); |
|
|
1691 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1692 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1693 | #endif |
|
|
1694 | } |
|
|
1695 | |
|
|
1696 | #if EV_FORK_ENABLE |
|
|
1697 | assert (forkmax >= forkcnt); |
|
|
1698 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1699 | #endif |
|
|
1700 | |
|
|
1701 | #if EV_ASYNC_ENABLE |
|
|
1702 | assert (asyncmax >= asynccnt); |
|
|
1703 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1704 | #endif |
|
|
1705 | |
|
|
1706 | assert (preparemax >= preparecnt); |
|
|
1707 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1708 | |
|
|
1709 | assert (checkmax >= checkcnt); |
|
|
1710 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1711 | |
|
|
1712 | # if 0 |
|
|
1713 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1714 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1366 | #endif |
1715 | # endif |
|
|
1716 | #endif |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | #endif /* multiplicity */ |
1367 | |
1720 | |
1368 | #if EV_MULTIPLICITY |
1721 | #if EV_MULTIPLICITY |
1369 | struct ev_loop * |
1722 | struct ev_loop * |
1370 | ev_default_loop_init (unsigned int flags) |
1723 | ev_default_loop_init (unsigned int flags) |
1371 | #else |
1724 | #else |
… | |
… | |
1404 | { |
1757 | { |
1405 | #if EV_MULTIPLICITY |
1758 | #if EV_MULTIPLICITY |
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
1759 | struct ev_loop *loop = ev_default_loop_ptr; |
1407 | #endif |
1760 | #endif |
1408 | |
1761 | |
|
|
1762 | ev_default_loop_ptr = 0; |
|
|
1763 | |
1409 | #ifndef _WIN32 |
1764 | #ifndef _WIN32 |
1410 | ev_ref (EV_A); /* child watcher */ |
1765 | ev_ref (EV_A); /* child watcher */ |
1411 | ev_signal_stop (EV_A_ &childev); |
1766 | ev_signal_stop (EV_A_ &childev); |
1412 | #endif |
1767 | #endif |
1413 | |
1768 | |
… | |
… | |
1419 | { |
1774 | { |
1420 | #if EV_MULTIPLICITY |
1775 | #if EV_MULTIPLICITY |
1421 | struct ev_loop *loop = ev_default_loop_ptr; |
1776 | struct ev_loop *loop = ev_default_loop_ptr; |
1422 | #endif |
1777 | #endif |
1423 | |
1778 | |
1424 | if (backend) |
|
|
1425 | postfork = 1; /* must be in line with ev_loop_fork */ |
1779 | postfork = 1; /* must be in line with ev_loop_fork */ |
1426 | } |
1780 | } |
1427 | |
1781 | |
1428 | /*****************************************************************************/ |
1782 | /*****************************************************************************/ |
1429 | |
1783 | |
1430 | void |
1784 | void |
1431 | ev_invoke (EV_P_ void *w, int revents) |
1785 | ev_invoke (EV_P_ void *w, int revents) |
1432 | { |
1786 | { |
1433 | EV_CB_INVOKE ((W)w, revents); |
1787 | EV_CB_INVOKE ((W)w, revents); |
1434 | } |
1788 | } |
1435 | |
1789 | |
1436 | void inline_speed |
1790 | inline_speed void |
1437 | call_pending (EV_P) |
1791 | call_pending (EV_P) |
1438 | { |
1792 | { |
1439 | int pri; |
1793 | int pri; |
1440 | |
1794 | |
1441 | for (pri = NUMPRI; pri--; ) |
1795 | for (pri = NUMPRI; pri--; ) |
1442 | while (pendingcnt [pri]) |
1796 | while (pendingcnt [pri]) |
1443 | { |
1797 | { |
1444 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1798 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1445 | |
1799 | |
1446 | if (expect_true (p->w)) |
|
|
1447 | { |
|
|
1448 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1800 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1801 | /* ^ this is no longer true, as pending_w could be here */ |
1449 | |
1802 | |
1450 | p->w->pending = 0; |
1803 | p->w->pending = 0; |
1451 | EV_CB_INVOKE (p->w, p->events); |
1804 | EV_CB_INVOKE (p->w, p->events); |
1452 | } |
1805 | EV_FREQUENT_CHECK; |
1453 | } |
1806 | } |
1454 | } |
1807 | } |
1455 | |
1808 | |
1456 | void inline_size |
|
|
1457 | timers_reify (EV_P) |
|
|
1458 | { |
|
|
1459 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1460 | { |
|
|
1461 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1462 | |
|
|
1463 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1464 | |
|
|
1465 | /* first reschedule or stop timer */ |
|
|
1466 | if (w->repeat) |
|
|
1467 | { |
|
|
1468 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1469 | |
|
|
1470 | ((WT)w)->at += w->repeat; |
|
|
1471 | if (((WT)w)->at < mn_now) |
|
|
1472 | ((WT)w)->at = mn_now; |
|
|
1473 | |
|
|
1474 | downheap (timers, timercnt, 0); |
|
|
1475 | } |
|
|
1476 | else |
|
|
1477 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1478 | |
|
|
1479 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1480 | } |
|
|
1481 | } |
|
|
1482 | |
|
|
1483 | #if EV_PERIODIC_ENABLE |
|
|
1484 | void inline_size |
|
|
1485 | periodics_reify (EV_P) |
|
|
1486 | { |
|
|
1487 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1488 | { |
|
|
1489 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1490 | |
|
|
1491 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1492 | |
|
|
1493 | /* first reschedule or stop timer */ |
|
|
1494 | if (w->reschedule_cb) |
|
|
1495 | { |
|
|
1496 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1497 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1498 | downheap (periodics, periodiccnt, 0); |
|
|
1499 | } |
|
|
1500 | else if (w->interval) |
|
|
1501 | { |
|
|
1502 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1503 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1504 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1505 | downheap (periodics, periodiccnt, 0); |
|
|
1506 | } |
|
|
1507 | else |
|
|
1508 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1509 | |
|
|
1510 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1511 | } |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | static void noinline |
|
|
1515 | periodics_reschedule (EV_P) |
|
|
1516 | { |
|
|
1517 | int i; |
|
|
1518 | |
|
|
1519 | /* adjust periodics after time jump */ |
|
|
1520 | for (i = 0; i < periodiccnt; ++i) |
|
|
1521 | { |
|
|
1522 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1523 | |
|
|
1524 | if (w->reschedule_cb) |
|
|
1525 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1526 | else if (w->interval) |
|
|
1527 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | /* now rebuild the heap */ |
|
|
1531 | for (i = periodiccnt >> 1; i--; ) |
|
|
1532 | downheap (periodics, periodiccnt, i); |
|
|
1533 | } |
|
|
1534 | #endif |
|
|
1535 | |
|
|
1536 | #if EV_IDLE_ENABLE |
1809 | #if EV_IDLE_ENABLE |
1537 | void inline_size |
1810 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1811 | /* only when higher priorities are idle" logic */ |
|
|
1812 | inline_size void |
1538 | idle_reify (EV_P) |
1813 | idle_reify (EV_P) |
1539 | { |
1814 | { |
1540 | if (expect_false (idleall)) |
1815 | if (expect_false (idleall)) |
1541 | { |
1816 | { |
1542 | int pri; |
1817 | int pri; |
… | |
… | |
1554 | } |
1829 | } |
1555 | } |
1830 | } |
1556 | } |
1831 | } |
1557 | #endif |
1832 | #endif |
1558 | |
1833 | |
1559 | void inline_speed |
1834 | /* make timers pending */ |
|
|
1835 | inline_size void |
|
|
1836 | timers_reify (EV_P) |
|
|
1837 | { |
|
|
1838 | EV_FREQUENT_CHECK; |
|
|
1839 | |
|
|
1840 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1841 | { |
|
|
1842 | do |
|
|
1843 | { |
|
|
1844 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1845 | |
|
|
1846 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1847 | |
|
|
1848 | /* first reschedule or stop timer */ |
|
|
1849 | if (w->repeat) |
|
|
1850 | { |
|
|
1851 | ev_at (w) += w->repeat; |
|
|
1852 | if (ev_at (w) < mn_now) |
|
|
1853 | ev_at (w) = mn_now; |
|
|
1854 | |
|
|
1855 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1856 | |
|
|
1857 | ANHE_at_cache (timers [HEAP0]); |
|
|
1858 | downheap (timers, timercnt, HEAP0); |
|
|
1859 | } |
|
|
1860 | else |
|
|
1861 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1862 | |
|
|
1863 | EV_FREQUENT_CHECK; |
|
|
1864 | feed_reverse (EV_A_ (W)w); |
|
|
1865 | } |
|
|
1866 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
1867 | |
|
|
1868 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
1869 | } |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | #if EV_PERIODIC_ENABLE |
|
|
1873 | /* make periodics pending */ |
|
|
1874 | inline_size void |
|
|
1875 | periodics_reify (EV_P) |
|
|
1876 | { |
|
|
1877 | EV_FREQUENT_CHECK; |
|
|
1878 | |
|
|
1879 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
1880 | { |
|
|
1881 | int feed_count = 0; |
|
|
1882 | |
|
|
1883 | do |
|
|
1884 | { |
|
|
1885 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1886 | |
|
|
1887 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1888 | |
|
|
1889 | /* first reschedule or stop timer */ |
|
|
1890 | if (w->reschedule_cb) |
|
|
1891 | { |
|
|
1892 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1893 | |
|
|
1894 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1895 | |
|
|
1896 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1897 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1898 | } |
|
|
1899 | else if (w->interval) |
|
|
1900 | { |
|
|
1901 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1902 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1903 | /* this might happen because of floating point inexactness */ |
|
|
1904 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1905 | { |
|
|
1906 | ev_at (w) += w->interval; |
|
|
1907 | |
|
|
1908 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1909 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1910 | /* has effectively asked to get triggered more often than possible */ |
|
|
1911 | if (ev_at (w) < ev_rt_now) |
|
|
1912 | ev_at (w) = ev_rt_now; |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1916 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1917 | } |
|
|
1918 | else |
|
|
1919 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1920 | |
|
|
1921 | EV_FREQUENT_CHECK; |
|
|
1922 | feed_reverse (EV_A_ (W)w); |
|
|
1923 | } |
|
|
1924 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
1925 | |
|
|
1926 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
1927 | } |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | /* simply recalculate all periodics */ |
|
|
1931 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
1932 | static void noinline |
|
|
1933 | periodics_reschedule (EV_P) |
|
|
1934 | { |
|
|
1935 | int i; |
|
|
1936 | |
|
|
1937 | /* adjust periodics after time jump */ |
|
|
1938 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1939 | { |
|
|
1940 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1941 | |
|
|
1942 | if (w->reschedule_cb) |
|
|
1943 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1944 | else if (w->interval) |
|
|
1945 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1946 | |
|
|
1947 | ANHE_at_cache (periodics [i]); |
|
|
1948 | } |
|
|
1949 | |
|
|
1950 | reheap (periodics, periodiccnt); |
|
|
1951 | } |
|
|
1952 | #endif |
|
|
1953 | |
|
|
1954 | /* adjust all timers by a given offset */ |
|
|
1955 | static void noinline |
|
|
1956 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1957 | { |
|
|
1958 | int i; |
|
|
1959 | |
|
|
1960 | for (i = 0; i < timercnt; ++i) |
|
|
1961 | { |
|
|
1962 | ANHE *he = timers + i + HEAP0; |
|
|
1963 | ANHE_w (*he)->at += adjust; |
|
|
1964 | ANHE_at_cache (*he); |
|
|
1965 | } |
|
|
1966 | } |
|
|
1967 | |
|
|
1968 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1969 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1970 | inline_speed void |
1560 | time_update (EV_P_ ev_tstamp max_block) |
1971 | time_update (EV_P_ ev_tstamp max_block) |
1561 | { |
1972 | { |
1562 | int i; |
|
|
1563 | |
|
|
1564 | #if EV_USE_MONOTONIC |
1973 | #if EV_USE_MONOTONIC |
1565 | if (expect_true (have_monotonic)) |
1974 | if (expect_true (have_monotonic)) |
1566 | { |
1975 | { |
|
|
1976 | int i; |
1567 | ev_tstamp odiff = rtmn_diff; |
1977 | ev_tstamp odiff = rtmn_diff; |
1568 | |
1978 | |
1569 | mn_now = get_clock (); |
1979 | mn_now = get_clock (); |
1570 | |
1980 | |
1571 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1981 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1589 | */ |
1999 | */ |
1590 | for (i = 4; --i; ) |
2000 | for (i = 4; --i; ) |
1591 | { |
2001 | { |
1592 | rtmn_diff = ev_rt_now - mn_now; |
2002 | rtmn_diff = ev_rt_now - mn_now; |
1593 | |
2003 | |
1594 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2004 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1595 | return; /* all is well */ |
2005 | return; /* all is well */ |
1596 | |
2006 | |
1597 | ev_rt_now = ev_time (); |
2007 | ev_rt_now = ev_time (); |
1598 | mn_now = get_clock (); |
2008 | mn_now = get_clock (); |
1599 | now_floor = mn_now; |
2009 | now_floor = mn_now; |
1600 | } |
2010 | } |
1601 | |
2011 | |
|
|
2012 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2013 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1602 | # if EV_PERIODIC_ENABLE |
2014 | # if EV_PERIODIC_ENABLE |
1603 | periodics_reschedule (EV_A); |
2015 | periodics_reschedule (EV_A); |
1604 | # endif |
2016 | # endif |
1605 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1606 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1607 | } |
2017 | } |
1608 | else |
2018 | else |
1609 | #endif |
2019 | #endif |
1610 | { |
2020 | { |
1611 | ev_rt_now = ev_time (); |
2021 | ev_rt_now = ev_time (); |
1612 | |
2022 | |
1613 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2023 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1614 | { |
2024 | { |
|
|
2025 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2026 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1615 | #if EV_PERIODIC_ENABLE |
2027 | #if EV_PERIODIC_ENABLE |
1616 | periodics_reschedule (EV_A); |
2028 | periodics_reschedule (EV_A); |
1617 | #endif |
2029 | #endif |
1618 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1619 | for (i = 0; i < timercnt; ++i) |
|
|
1620 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1621 | } |
2030 | } |
1622 | |
2031 | |
1623 | mn_now = ev_rt_now; |
2032 | mn_now = ev_rt_now; |
1624 | } |
2033 | } |
1625 | } |
2034 | } |
1626 | |
2035 | |
1627 | void |
2036 | void |
1628 | ev_ref (EV_P) |
|
|
1629 | { |
|
|
1630 | ++activecnt; |
|
|
1631 | } |
|
|
1632 | |
|
|
1633 | void |
|
|
1634 | ev_unref (EV_P) |
|
|
1635 | { |
|
|
1636 | --activecnt; |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | static int loop_done; |
|
|
1640 | |
|
|
1641 | void |
|
|
1642 | ev_loop (EV_P_ int flags) |
2037 | ev_loop (EV_P_ int flags) |
1643 | { |
2038 | { |
|
|
2039 | ++loop_depth; |
|
|
2040 | |
1644 | loop_done = EVUNLOOP_CANCEL; |
2041 | loop_done = EVUNLOOP_CANCEL; |
1645 | |
2042 | |
1646 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2043 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1647 | |
2044 | |
1648 | do |
2045 | do |
1649 | { |
2046 | { |
|
|
2047 | #if EV_VERIFY >= 2 |
|
|
2048 | ev_loop_verify (EV_A); |
|
|
2049 | #endif |
|
|
2050 | |
1650 | #ifndef _WIN32 |
2051 | #ifndef _WIN32 |
1651 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2052 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1652 | if (expect_false (getpid () != curpid)) |
2053 | if (expect_false (getpid () != curpid)) |
1653 | { |
2054 | { |
1654 | curpid = getpid (); |
2055 | curpid = getpid (); |
… | |
… | |
1671 | { |
2072 | { |
1672 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2073 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1673 | call_pending (EV_A); |
2074 | call_pending (EV_A); |
1674 | } |
2075 | } |
1675 | |
2076 | |
1676 | if (expect_false (!activecnt)) |
|
|
1677 | break; |
|
|
1678 | |
|
|
1679 | /* we might have forked, so reify kernel state if necessary */ |
2077 | /* we might have forked, so reify kernel state if necessary */ |
1680 | if (expect_false (postfork)) |
2078 | if (expect_false (postfork)) |
1681 | loop_fork (EV_A); |
2079 | loop_fork (EV_A); |
1682 | |
2080 | |
1683 | /* update fd-related kernel structures */ |
2081 | /* update fd-related kernel structures */ |
… | |
… | |
1688 | ev_tstamp waittime = 0.; |
2086 | ev_tstamp waittime = 0.; |
1689 | ev_tstamp sleeptime = 0.; |
2087 | ev_tstamp sleeptime = 0.; |
1690 | |
2088 | |
1691 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2089 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1692 | { |
2090 | { |
|
|
2091 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2092 | ev_tstamp prev_mn_now = mn_now; |
|
|
2093 | |
1693 | /* update time to cancel out callback processing overhead */ |
2094 | /* update time to cancel out callback processing overhead */ |
1694 | time_update (EV_A_ 1e100); |
2095 | time_update (EV_A_ 1e100); |
1695 | |
2096 | |
1696 | waittime = MAX_BLOCKTIME; |
2097 | waittime = MAX_BLOCKTIME; |
1697 | |
2098 | |
1698 | if (timercnt) |
2099 | if (timercnt) |
1699 | { |
2100 | { |
1700 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2101 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1701 | if (waittime > to) waittime = to; |
2102 | if (waittime > to) waittime = to; |
1702 | } |
2103 | } |
1703 | |
2104 | |
1704 | #if EV_PERIODIC_ENABLE |
2105 | #if EV_PERIODIC_ENABLE |
1705 | if (periodiccnt) |
2106 | if (periodiccnt) |
1706 | { |
2107 | { |
1707 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2108 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1708 | if (waittime > to) waittime = to; |
2109 | if (waittime > to) waittime = to; |
1709 | } |
2110 | } |
1710 | #endif |
2111 | #endif |
1711 | |
2112 | |
|
|
2113 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1712 | if (expect_false (waittime < timeout_blocktime)) |
2114 | if (expect_false (waittime < timeout_blocktime)) |
1713 | waittime = timeout_blocktime; |
2115 | waittime = timeout_blocktime; |
1714 | |
2116 | |
1715 | sleeptime = waittime - backend_fudge; |
2117 | /* extra check because io_blocktime is commonly 0 */ |
1716 | |
|
|
1717 | if (expect_true (sleeptime > io_blocktime)) |
2118 | if (expect_false (io_blocktime)) |
1718 | sleeptime = io_blocktime; |
|
|
1719 | |
|
|
1720 | if (sleeptime) |
|
|
1721 | { |
2119 | { |
|
|
2120 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2121 | |
|
|
2122 | if (sleeptime > waittime - backend_fudge) |
|
|
2123 | sleeptime = waittime - backend_fudge; |
|
|
2124 | |
|
|
2125 | if (expect_true (sleeptime > 0.)) |
|
|
2126 | { |
1722 | ev_sleep (sleeptime); |
2127 | ev_sleep (sleeptime); |
1723 | waittime -= sleeptime; |
2128 | waittime -= sleeptime; |
|
|
2129 | } |
1724 | } |
2130 | } |
1725 | } |
2131 | } |
1726 | |
2132 | |
1727 | ++loop_count; |
2133 | ++loop_count; |
1728 | backend_poll (EV_A_ waittime); |
2134 | backend_poll (EV_A_ waittime); |
… | |
… | |
1754 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2160 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1755 | )); |
2161 | )); |
1756 | |
2162 | |
1757 | if (loop_done == EVUNLOOP_ONE) |
2163 | if (loop_done == EVUNLOOP_ONE) |
1758 | loop_done = EVUNLOOP_CANCEL; |
2164 | loop_done = EVUNLOOP_CANCEL; |
|
|
2165 | |
|
|
2166 | --loop_depth; |
1759 | } |
2167 | } |
1760 | |
2168 | |
1761 | void |
2169 | void |
1762 | ev_unloop (EV_P_ int how) |
2170 | ev_unloop (EV_P_ int how) |
1763 | { |
2171 | { |
1764 | loop_done = how; |
2172 | loop_done = how; |
1765 | } |
2173 | } |
1766 | |
2174 | |
|
|
2175 | void |
|
|
2176 | ev_ref (EV_P) |
|
|
2177 | { |
|
|
2178 | ++activecnt; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | void |
|
|
2182 | ev_unref (EV_P) |
|
|
2183 | { |
|
|
2184 | --activecnt; |
|
|
2185 | } |
|
|
2186 | |
|
|
2187 | void |
|
|
2188 | ev_now_update (EV_P) |
|
|
2189 | { |
|
|
2190 | time_update (EV_A_ 1e100); |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | void |
|
|
2194 | ev_suspend (EV_P) |
|
|
2195 | { |
|
|
2196 | ev_now_update (EV_A); |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | void |
|
|
2200 | ev_resume (EV_P) |
|
|
2201 | { |
|
|
2202 | ev_tstamp mn_prev = mn_now; |
|
|
2203 | |
|
|
2204 | ev_now_update (EV_A); |
|
|
2205 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2206 | #if EV_PERIODIC_ENABLE |
|
|
2207 | /* TODO: really do this? */ |
|
|
2208 | periodics_reschedule (EV_A); |
|
|
2209 | #endif |
|
|
2210 | } |
|
|
2211 | |
1767 | /*****************************************************************************/ |
2212 | /*****************************************************************************/ |
|
|
2213 | /* singly-linked list management, used when the expected list length is short */ |
1768 | |
2214 | |
1769 | void inline_size |
2215 | inline_size void |
1770 | wlist_add (WL *head, WL elem) |
2216 | wlist_add (WL *head, WL elem) |
1771 | { |
2217 | { |
1772 | elem->next = *head; |
2218 | elem->next = *head; |
1773 | *head = elem; |
2219 | *head = elem; |
1774 | } |
2220 | } |
1775 | |
2221 | |
1776 | void inline_size |
2222 | inline_size void |
1777 | wlist_del (WL *head, WL elem) |
2223 | wlist_del (WL *head, WL elem) |
1778 | { |
2224 | { |
1779 | while (*head) |
2225 | while (*head) |
1780 | { |
2226 | { |
1781 | if (*head == elem) |
2227 | if (*head == elem) |
… | |
… | |
1786 | |
2232 | |
1787 | head = &(*head)->next; |
2233 | head = &(*head)->next; |
1788 | } |
2234 | } |
1789 | } |
2235 | } |
1790 | |
2236 | |
1791 | void inline_speed |
2237 | /* internal, faster, version of ev_clear_pending */ |
|
|
2238 | inline_speed void |
1792 | clear_pending (EV_P_ W w) |
2239 | clear_pending (EV_P_ W w) |
1793 | { |
2240 | { |
1794 | if (w->pending) |
2241 | if (w->pending) |
1795 | { |
2242 | { |
1796 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2243 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1797 | w->pending = 0; |
2244 | w->pending = 0; |
1798 | } |
2245 | } |
1799 | } |
2246 | } |
1800 | |
2247 | |
1801 | int |
2248 | int |
… | |
… | |
1805 | int pending = w_->pending; |
2252 | int pending = w_->pending; |
1806 | |
2253 | |
1807 | if (expect_true (pending)) |
2254 | if (expect_true (pending)) |
1808 | { |
2255 | { |
1809 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2256 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2257 | p->w = (W)&pending_w; |
1810 | w_->pending = 0; |
2258 | w_->pending = 0; |
1811 | p->w = 0; |
|
|
1812 | return p->events; |
2259 | return p->events; |
1813 | } |
2260 | } |
1814 | else |
2261 | else |
1815 | return 0; |
2262 | return 0; |
1816 | } |
2263 | } |
1817 | |
2264 | |
1818 | void inline_size |
2265 | inline_size void |
1819 | pri_adjust (EV_P_ W w) |
2266 | pri_adjust (EV_P_ W w) |
1820 | { |
2267 | { |
1821 | int pri = w->priority; |
2268 | int pri = ev_priority (w); |
1822 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2269 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1823 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2270 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1824 | w->priority = pri; |
2271 | ev_set_priority (w, pri); |
1825 | } |
2272 | } |
1826 | |
2273 | |
1827 | void inline_speed |
2274 | inline_speed void |
1828 | ev_start (EV_P_ W w, int active) |
2275 | ev_start (EV_P_ W w, int active) |
1829 | { |
2276 | { |
1830 | pri_adjust (EV_A_ w); |
2277 | pri_adjust (EV_A_ w); |
1831 | w->active = active; |
2278 | w->active = active; |
1832 | ev_ref (EV_A); |
2279 | ev_ref (EV_A); |
1833 | } |
2280 | } |
1834 | |
2281 | |
1835 | void inline_size |
2282 | inline_size void |
1836 | ev_stop (EV_P_ W w) |
2283 | ev_stop (EV_P_ W w) |
1837 | { |
2284 | { |
1838 | ev_unref (EV_A); |
2285 | ev_unref (EV_A); |
1839 | w->active = 0; |
2286 | w->active = 0; |
1840 | } |
2287 | } |
… | |
… | |
1847 | int fd = w->fd; |
2294 | int fd = w->fd; |
1848 | |
2295 | |
1849 | if (expect_false (ev_is_active (w))) |
2296 | if (expect_false (ev_is_active (w))) |
1850 | return; |
2297 | return; |
1851 | |
2298 | |
1852 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2299 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2300 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2301 | |
|
|
2302 | EV_FREQUENT_CHECK; |
1853 | |
2303 | |
1854 | ev_start (EV_A_ (W)w, 1); |
2304 | ev_start (EV_A_ (W)w, 1); |
1855 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2305 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1856 | wlist_add (&anfds[fd].head, (WL)w); |
2306 | wlist_add (&anfds[fd].head, (WL)w); |
1857 | |
2307 | |
1858 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2308 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
1859 | w->events &= ~EV_IOFDSET; |
2309 | w->events &= ~EV__IOFDSET; |
|
|
2310 | |
|
|
2311 | EV_FREQUENT_CHECK; |
1860 | } |
2312 | } |
1861 | |
2313 | |
1862 | void noinline |
2314 | void noinline |
1863 | ev_io_stop (EV_P_ ev_io *w) |
2315 | ev_io_stop (EV_P_ ev_io *w) |
1864 | { |
2316 | { |
1865 | clear_pending (EV_A_ (W)w); |
2317 | clear_pending (EV_A_ (W)w); |
1866 | if (expect_false (!ev_is_active (w))) |
2318 | if (expect_false (!ev_is_active (w))) |
1867 | return; |
2319 | return; |
1868 | |
2320 | |
1869 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2321 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2322 | |
|
|
2323 | EV_FREQUENT_CHECK; |
1870 | |
2324 | |
1871 | wlist_del (&anfds[w->fd].head, (WL)w); |
2325 | wlist_del (&anfds[w->fd].head, (WL)w); |
1872 | ev_stop (EV_A_ (W)w); |
2326 | ev_stop (EV_A_ (W)w); |
1873 | |
2327 | |
1874 | fd_change (EV_A_ w->fd, 1); |
2328 | fd_change (EV_A_ w->fd, 1); |
|
|
2329 | |
|
|
2330 | EV_FREQUENT_CHECK; |
1875 | } |
2331 | } |
1876 | |
2332 | |
1877 | void noinline |
2333 | void noinline |
1878 | ev_timer_start (EV_P_ ev_timer *w) |
2334 | ev_timer_start (EV_P_ ev_timer *w) |
1879 | { |
2335 | { |
1880 | if (expect_false (ev_is_active (w))) |
2336 | if (expect_false (ev_is_active (w))) |
1881 | return; |
2337 | return; |
1882 | |
2338 | |
1883 | ((WT)w)->at += mn_now; |
2339 | ev_at (w) += mn_now; |
1884 | |
2340 | |
1885 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2341 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1886 | |
2342 | |
|
|
2343 | EV_FREQUENT_CHECK; |
|
|
2344 | |
|
|
2345 | ++timercnt; |
1887 | ev_start (EV_A_ (W)w, ++timercnt); |
2346 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1888 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2347 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1889 | timers [timercnt - 1] = (WT)w; |
2348 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1890 | upheap (timers, timercnt - 1); |
2349 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2350 | upheap (timers, ev_active (w)); |
1891 | |
2351 | |
|
|
2352 | EV_FREQUENT_CHECK; |
|
|
2353 | |
1892 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2354 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1893 | } |
2355 | } |
1894 | |
2356 | |
1895 | void noinline |
2357 | void noinline |
1896 | ev_timer_stop (EV_P_ ev_timer *w) |
2358 | ev_timer_stop (EV_P_ ev_timer *w) |
1897 | { |
2359 | { |
1898 | clear_pending (EV_A_ (W)w); |
2360 | clear_pending (EV_A_ (W)w); |
1899 | if (expect_false (!ev_is_active (w))) |
2361 | if (expect_false (!ev_is_active (w))) |
1900 | return; |
2362 | return; |
1901 | |
2363 | |
1902 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2364 | EV_FREQUENT_CHECK; |
1903 | |
2365 | |
1904 | { |
2366 | { |
1905 | int active = ((W)w)->active; |
2367 | int active = ev_active (w); |
1906 | |
2368 | |
|
|
2369 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2370 | |
|
|
2371 | --timercnt; |
|
|
2372 | |
1907 | if (expect_true (--active < --timercnt)) |
2373 | if (expect_true (active < timercnt + HEAP0)) |
1908 | { |
2374 | { |
1909 | timers [active] = timers [timercnt]; |
2375 | timers [active] = timers [timercnt + HEAP0]; |
1910 | adjustheap (timers, timercnt, active); |
2376 | adjustheap (timers, timercnt, active); |
1911 | } |
2377 | } |
1912 | } |
2378 | } |
1913 | |
2379 | |
1914 | ((WT)w)->at -= mn_now; |
2380 | EV_FREQUENT_CHECK; |
|
|
2381 | |
|
|
2382 | ev_at (w) -= mn_now; |
1915 | |
2383 | |
1916 | ev_stop (EV_A_ (W)w); |
2384 | ev_stop (EV_A_ (W)w); |
1917 | } |
2385 | } |
1918 | |
2386 | |
1919 | void noinline |
2387 | void noinline |
1920 | ev_timer_again (EV_P_ ev_timer *w) |
2388 | ev_timer_again (EV_P_ ev_timer *w) |
1921 | { |
2389 | { |
|
|
2390 | EV_FREQUENT_CHECK; |
|
|
2391 | |
1922 | if (ev_is_active (w)) |
2392 | if (ev_is_active (w)) |
1923 | { |
2393 | { |
1924 | if (w->repeat) |
2394 | if (w->repeat) |
1925 | { |
2395 | { |
1926 | ((WT)w)->at = mn_now + w->repeat; |
2396 | ev_at (w) = mn_now + w->repeat; |
|
|
2397 | ANHE_at_cache (timers [ev_active (w)]); |
1927 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2398 | adjustheap (timers, timercnt, ev_active (w)); |
1928 | } |
2399 | } |
1929 | else |
2400 | else |
1930 | ev_timer_stop (EV_A_ w); |
2401 | ev_timer_stop (EV_A_ w); |
1931 | } |
2402 | } |
1932 | else if (w->repeat) |
2403 | else if (w->repeat) |
1933 | { |
2404 | { |
1934 | w->at = w->repeat; |
2405 | ev_at (w) = w->repeat; |
1935 | ev_timer_start (EV_A_ w); |
2406 | ev_timer_start (EV_A_ w); |
1936 | } |
2407 | } |
|
|
2408 | |
|
|
2409 | EV_FREQUENT_CHECK; |
1937 | } |
2410 | } |
1938 | |
2411 | |
1939 | #if EV_PERIODIC_ENABLE |
2412 | #if EV_PERIODIC_ENABLE |
1940 | void noinline |
2413 | void noinline |
1941 | ev_periodic_start (EV_P_ ev_periodic *w) |
2414 | ev_periodic_start (EV_P_ ev_periodic *w) |
1942 | { |
2415 | { |
1943 | if (expect_false (ev_is_active (w))) |
2416 | if (expect_false (ev_is_active (w))) |
1944 | return; |
2417 | return; |
1945 | |
2418 | |
1946 | if (w->reschedule_cb) |
2419 | if (w->reschedule_cb) |
1947 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2420 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1948 | else if (w->interval) |
2421 | else if (w->interval) |
1949 | { |
2422 | { |
1950 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2423 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1951 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2424 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1952 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2425 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1953 | } |
2426 | } |
1954 | else |
2427 | else |
1955 | ((WT)w)->at = w->offset; |
2428 | ev_at (w) = w->offset; |
1956 | |
2429 | |
|
|
2430 | EV_FREQUENT_CHECK; |
|
|
2431 | |
|
|
2432 | ++periodiccnt; |
1957 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2433 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1958 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2434 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1959 | periodics [periodiccnt - 1] = (WT)w; |
2435 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1960 | upheap (periodics, periodiccnt - 1); |
2436 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2437 | upheap (periodics, ev_active (w)); |
1961 | |
2438 | |
|
|
2439 | EV_FREQUENT_CHECK; |
|
|
2440 | |
1962 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2441 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1963 | } |
2442 | } |
1964 | |
2443 | |
1965 | void noinline |
2444 | void noinline |
1966 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2445 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1967 | { |
2446 | { |
1968 | clear_pending (EV_A_ (W)w); |
2447 | clear_pending (EV_A_ (W)w); |
1969 | if (expect_false (!ev_is_active (w))) |
2448 | if (expect_false (!ev_is_active (w))) |
1970 | return; |
2449 | return; |
1971 | |
2450 | |
1972 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2451 | EV_FREQUENT_CHECK; |
1973 | |
2452 | |
1974 | { |
2453 | { |
1975 | int active = ((W)w)->active; |
2454 | int active = ev_active (w); |
1976 | |
2455 | |
|
|
2456 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2457 | |
|
|
2458 | --periodiccnt; |
|
|
2459 | |
1977 | if (expect_true (--active < --periodiccnt)) |
2460 | if (expect_true (active < periodiccnt + HEAP0)) |
1978 | { |
2461 | { |
1979 | periodics [active] = periodics [periodiccnt]; |
2462 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1980 | adjustheap (periodics, periodiccnt, active); |
2463 | adjustheap (periodics, periodiccnt, active); |
1981 | } |
2464 | } |
1982 | } |
2465 | } |
1983 | |
2466 | |
|
|
2467 | EV_FREQUENT_CHECK; |
|
|
2468 | |
1984 | ev_stop (EV_A_ (W)w); |
2469 | ev_stop (EV_A_ (W)w); |
1985 | } |
2470 | } |
1986 | |
2471 | |
1987 | void noinline |
2472 | void noinline |
1988 | ev_periodic_again (EV_P_ ev_periodic *w) |
2473 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1999 | |
2484 | |
2000 | void noinline |
2485 | void noinline |
2001 | ev_signal_start (EV_P_ ev_signal *w) |
2486 | ev_signal_start (EV_P_ ev_signal *w) |
2002 | { |
2487 | { |
2003 | #if EV_MULTIPLICITY |
2488 | #if EV_MULTIPLICITY |
2004 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2489 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2005 | #endif |
2490 | #endif |
2006 | if (expect_false (ev_is_active (w))) |
2491 | if (expect_false (ev_is_active (w))) |
2007 | return; |
2492 | return; |
2008 | |
2493 | |
2009 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2494 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2010 | |
2495 | |
2011 | evpipe_init (EV_A); |
2496 | evpipe_init (EV_A); |
|
|
2497 | |
|
|
2498 | EV_FREQUENT_CHECK; |
2012 | |
2499 | |
2013 | { |
2500 | { |
2014 | #ifndef _WIN32 |
2501 | #ifndef _WIN32 |
2015 | sigset_t full, prev; |
2502 | sigset_t full, prev; |
2016 | sigfillset (&full); |
2503 | sigfillset (&full); |
2017 | sigprocmask (SIG_SETMASK, &full, &prev); |
2504 | sigprocmask (SIG_SETMASK, &full, &prev); |
2018 | #endif |
2505 | #endif |
2019 | |
2506 | |
2020 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2507 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2021 | |
2508 | |
2022 | #ifndef _WIN32 |
2509 | #ifndef _WIN32 |
2023 | sigprocmask (SIG_SETMASK, &prev, 0); |
2510 | sigprocmask (SIG_SETMASK, &prev, 0); |
2024 | #endif |
2511 | #endif |
2025 | } |
2512 | } |
… | |
… | |
2037 | sigfillset (&sa.sa_mask); |
2524 | sigfillset (&sa.sa_mask); |
2038 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2525 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2039 | sigaction (w->signum, &sa, 0); |
2526 | sigaction (w->signum, &sa, 0); |
2040 | #endif |
2527 | #endif |
2041 | } |
2528 | } |
|
|
2529 | |
|
|
2530 | EV_FREQUENT_CHECK; |
2042 | } |
2531 | } |
2043 | |
2532 | |
2044 | void noinline |
2533 | void noinline |
2045 | ev_signal_stop (EV_P_ ev_signal *w) |
2534 | ev_signal_stop (EV_P_ ev_signal *w) |
2046 | { |
2535 | { |
2047 | clear_pending (EV_A_ (W)w); |
2536 | clear_pending (EV_A_ (W)w); |
2048 | if (expect_false (!ev_is_active (w))) |
2537 | if (expect_false (!ev_is_active (w))) |
2049 | return; |
2538 | return; |
2050 | |
2539 | |
|
|
2540 | EV_FREQUENT_CHECK; |
|
|
2541 | |
2051 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2542 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2052 | ev_stop (EV_A_ (W)w); |
2543 | ev_stop (EV_A_ (W)w); |
2053 | |
2544 | |
2054 | if (!signals [w->signum - 1].head) |
2545 | if (!signals [w->signum - 1].head) |
2055 | signal (w->signum, SIG_DFL); |
2546 | signal (w->signum, SIG_DFL); |
|
|
2547 | |
|
|
2548 | EV_FREQUENT_CHECK; |
2056 | } |
2549 | } |
2057 | |
2550 | |
2058 | void |
2551 | void |
2059 | ev_child_start (EV_P_ ev_child *w) |
2552 | ev_child_start (EV_P_ ev_child *w) |
2060 | { |
2553 | { |
2061 | #if EV_MULTIPLICITY |
2554 | #if EV_MULTIPLICITY |
2062 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2063 | #endif |
2556 | #endif |
2064 | if (expect_false (ev_is_active (w))) |
2557 | if (expect_false (ev_is_active (w))) |
2065 | return; |
2558 | return; |
2066 | |
2559 | |
|
|
2560 | EV_FREQUENT_CHECK; |
|
|
2561 | |
2067 | ev_start (EV_A_ (W)w, 1); |
2562 | ev_start (EV_A_ (W)w, 1); |
2068 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2563 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2564 | |
|
|
2565 | EV_FREQUENT_CHECK; |
2069 | } |
2566 | } |
2070 | |
2567 | |
2071 | void |
2568 | void |
2072 | ev_child_stop (EV_P_ ev_child *w) |
2569 | ev_child_stop (EV_P_ ev_child *w) |
2073 | { |
2570 | { |
2074 | clear_pending (EV_A_ (W)w); |
2571 | clear_pending (EV_A_ (W)w); |
2075 | if (expect_false (!ev_is_active (w))) |
2572 | if (expect_false (!ev_is_active (w))) |
2076 | return; |
2573 | return; |
2077 | |
2574 | |
|
|
2575 | EV_FREQUENT_CHECK; |
|
|
2576 | |
2078 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2577 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2079 | ev_stop (EV_A_ (W)w); |
2578 | ev_stop (EV_A_ (W)w); |
|
|
2579 | |
|
|
2580 | EV_FREQUENT_CHECK; |
2080 | } |
2581 | } |
2081 | |
2582 | |
2082 | #if EV_STAT_ENABLE |
2583 | #if EV_STAT_ENABLE |
2083 | |
2584 | |
2084 | # ifdef _WIN32 |
2585 | # ifdef _WIN32 |
2085 | # undef lstat |
2586 | # undef lstat |
2086 | # define lstat(a,b) _stati64 (a,b) |
2587 | # define lstat(a,b) _stati64 (a,b) |
2087 | # endif |
2588 | # endif |
2088 | |
2589 | |
2089 | #define DEF_STAT_INTERVAL 5.0074891 |
2590 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2591 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2090 | #define MIN_STAT_INTERVAL 0.1074891 |
2592 | #define MIN_STAT_INTERVAL 0.1074891 |
2091 | |
2593 | |
2092 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2594 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2093 | |
2595 | |
2094 | #if EV_USE_INOTIFY |
2596 | #if EV_USE_INOTIFY |
2095 | # define EV_INOTIFY_BUFSIZE 8192 |
2597 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2099 | { |
2601 | { |
2100 | 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); |
2602 | 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); |
2101 | |
2603 | |
2102 | if (w->wd < 0) |
2604 | if (w->wd < 0) |
2103 | { |
2605 | { |
|
|
2606 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2104 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2607 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2105 | |
2608 | |
2106 | /* monitor some parent directory for speedup hints */ |
2609 | /* monitor some parent directory for speedup hints */ |
|
|
2610 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2611 | /* but an efficiency issue only */ |
2107 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2612 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2108 | { |
2613 | { |
2109 | char path [4096]; |
2614 | char path [4096]; |
2110 | strcpy (path, w->path); |
2615 | strcpy (path, w->path); |
2111 | |
2616 | |
… | |
… | |
2114 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2619 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2115 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2620 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2116 | |
2621 | |
2117 | char *pend = strrchr (path, '/'); |
2622 | char *pend = strrchr (path, '/'); |
2118 | |
2623 | |
2119 | if (!pend) |
2624 | if (!pend || pend == path) |
2120 | break; /* whoops, no '/', complain to your admin */ |
2625 | break; |
2121 | |
2626 | |
2122 | *pend = 0; |
2627 | *pend = 0; |
2123 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2628 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2124 | } |
2629 | } |
2125 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2630 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2126 | } |
2631 | } |
2127 | } |
2632 | } |
2128 | else |
|
|
2129 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2130 | |
2633 | |
2131 | if (w->wd >= 0) |
2634 | if (w->wd >= 0) |
|
|
2635 | { |
2132 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2636 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2637 | |
|
|
2638 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2639 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2640 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2641 | struct statfs sfs; |
|
|
2642 | |
|
|
2643 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2644 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2645 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2646 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2647 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2648 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2649 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2650 | return; |
|
|
2651 | |
|
|
2652 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2653 | ev_timer_again (EV_A_ &w->timer); |
|
|
2654 | } |
2133 | } |
2655 | } |
2134 | |
2656 | |
2135 | static void noinline |
2657 | static void noinline |
2136 | infy_del (EV_P_ ev_stat *w) |
2658 | infy_del (EV_P_ ev_stat *w) |
2137 | { |
2659 | { |
… | |
… | |
2151 | |
2673 | |
2152 | static void noinline |
2674 | static void noinline |
2153 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2675 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2154 | { |
2676 | { |
2155 | if (slot < 0) |
2677 | if (slot < 0) |
2156 | /* overflow, need to check for all hahs slots */ |
2678 | /* overflow, need to check for all hash slots */ |
2157 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2679 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2158 | infy_wd (EV_A_ slot, wd, ev); |
2680 | infy_wd (EV_A_ slot, wd, ev); |
2159 | else |
2681 | else |
2160 | { |
2682 | { |
2161 | WL w_; |
2683 | WL w_; |
… | |
… | |
2167 | |
2689 | |
2168 | if (w->wd == wd || wd == -1) |
2690 | if (w->wd == wd || wd == -1) |
2169 | { |
2691 | { |
2170 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2692 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2171 | { |
2693 | { |
|
|
2694 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2172 | w->wd = -1; |
2695 | w->wd = -1; |
2173 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2696 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2174 | } |
2697 | } |
2175 | |
2698 | |
2176 | stat_timer_cb (EV_A_ &w->timer, 0); |
2699 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2189 | |
2712 | |
2190 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2713 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2191 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2714 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2192 | } |
2715 | } |
2193 | |
2716 | |
2194 | void inline_size |
2717 | inline_size void |
|
|
2718 | check_2625 (EV_P) |
|
|
2719 | { |
|
|
2720 | /* kernels < 2.6.25 are borked |
|
|
2721 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2722 | */ |
|
|
2723 | struct utsname buf; |
|
|
2724 | int major, minor, micro; |
|
|
2725 | |
|
|
2726 | if (uname (&buf)) |
|
|
2727 | return; |
|
|
2728 | |
|
|
2729 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | if (major < 2 |
|
|
2733 | || (major == 2 && minor < 6) |
|
|
2734 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2735 | return; |
|
|
2736 | |
|
|
2737 | fs_2625 = 1; |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | inline_size void |
2195 | infy_init (EV_P) |
2741 | infy_init (EV_P) |
2196 | { |
2742 | { |
2197 | if (fs_fd != -2) |
2743 | if (fs_fd != -2) |
2198 | return; |
2744 | return; |
|
|
2745 | |
|
|
2746 | fs_fd = -1; |
|
|
2747 | |
|
|
2748 | check_2625 (EV_A); |
2199 | |
2749 | |
2200 | fs_fd = inotify_init (); |
2750 | fs_fd = inotify_init (); |
2201 | |
2751 | |
2202 | if (fs_fd >= 0) |
2752 | if (fs_fd >= 0) |
2203 | { |
2753 | { |
… | |
… | |
2205 | ev_set_priority (&fs_w, EV_MAXPRI); |
2755 | ev_set_priority (&fs_w, EV_MAXPRI); |
2206 | ev_io_start (EV_A_ &fs_w); |
2756 | ev_io_start (EV_A_ &fs_w); |
2207 | } |
2757 | } |
2208 | } |
2758 | } |
2209 | |
2759 | |
2210 | void inline_size |
2760 | inline_size void |
2211 | infy_fork (EV_P) |
2761 | infy_fork (EV_P) |
2212 | { |
2762 | { |
2213 | int slot; |
2763 | int slot; |
2214 | |
2764 | |
2215 | if (fs_fd < 0) |
2765 | if (fs_fd < 0) |
… | |
… | |
2231 | w->wd = -1; |
2781 | w->wd = -1; |
2232 | |
2782 | |
2233 | if (fs_fd >= 0) |
2783 | if (fs_fd >= 0) |
2234 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2784 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2235 | else |
2785 | else |
2236 | ev_timer_start (EV_A_ &w->timer); |
2786 | ev_timer_again (EV_A_ &w->timer); |
2237 | } |
2787 | } |
2238 | |
|
|
2239 | } |
2788 | } |
2240 | } |
2789 | } |
2241 | |
2790 | |
|
|
2791 | #endif |
|
|
2792 | |
|
|
2793 | #ifdef _WIN32 |
|
|
2794 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2795 | #else |
|
|
2796 | # define EV_LSTAT(p,b) lstat (p, b) |
2242 | #endif |
2797 | #endif |
2243 | |
2798 | |
2244 | void |
2799 | void |
2245 | ev_stat_stat (EV_P_ ev_stat *w) |
2800 | ev_stat_stat (EV_P_ ev_stat *w) |
2246 | { |
2801 | { |
… | |
… | |
2273 | || w->prev.st_atime != w->attr.st_atime |
2828 | || w->prev.st_atime != w->attr.st_atime |
2274 | || w->prev.st_mtime != w->attr.st_mtime |
2829 | || w->prev.st_mtime != w->attr.st_mtime |
2275 | || w->prev.st_ctime != w->attr.st_ctime |
2830 | || w->prev.st_ctime != w->attr.st_ctime |
2276 | ) { |
2831 | ) { |
2277 | #if EV_USE_INOTIFY |
2832 | #if EV_USE_INOTIFY |
|
|
2833 | if (fs_fd >= 0) |
|
|
2834 | { |
2278 | infy_del (EV_A_ w); |
2835 | infy_del (EV_A_ w); |
2279 | infy_add (EV_A_ w); |
2836 | infy_add (EV_A_ w); |
2280 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2837 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2838 | } |
2281 | #endif |
2839 | #endif |
2282 | |
2840 | |
2283 | ev_feed_event (EV_A_ w, EV_STAT); |
2841 | ev_feed_event (EV_A_ w, EV_STAT); |
2284 | } |
2842 | } |
2285 | } |
2843 | } |
… | |
… | |
2288 | ev_stat_start (EV_P_ ev_stat *w) |
2846 | ev_stat_start (EV_P_ ev_stat *w) |
2289 | { |
2847 | { |
2290 | if (expect_false (ev_is_active (w))) |
2848 | if (expect_false (ev_is_active (w))) |
2291 | return; |
2849 | return; |
2292 | |
2850 | |
2293 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2294 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2295 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2296 | |
|
|
2297 | ev_stat_stat (EV_A_ w); |
2851 | ev_stat_stat (EV_A_ w); |
2298 | |
2852 | |
|
|
2853 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2299 | if (w->interval < MIN_STAT_INTERVAL) |
2854 | w->interval = MIN_STAT_INTERVAL; |
2300 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2301 | |
2855 | |
2302 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2856 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2303 | ev_set_priority (&w->timer, ev_priority (w)); |
2857 | ev_set_priority (&w->timer, ev_priority (w)); |
2304 | |
2858 | |
2305 | #if EV_USE_INOTIFY |
2859 | #if EV_USE_INOTIFY |
2306 | infy_init (EV_A); |
2860 | infy_init (EV_A); |
2307 | |
2861 | |
2308 | if (fs_fd >= 0) |
2862 | if (fs_fd >= 0) |
2309 | infy_add (EV_A_ w); |
2863 | infy_add (EV_A_ w); |
2310 | else |
2864 | else |
2311 | #endif |
2865 | #endif |
2312 | ev_timer_start (EV_A_ &w->timer); |
2866 | ev_timer_again (EV_A_ &w->timer); |
2313 | |
2867 | |
2314 | ev_start (EV_A_ (W)w, 1); |
2868 | ev_start (EV_A_ (W)w, 1); |
|
|
2869 | |
|
|
2870 | EV_FREQUENT_CHECK; |
2315 | } |
2871 | } |
2316 | |
2872 | |
2317 | void |
2873 | void |
2318 | ev_stat_stop (EV_P_ ev_stat *w) |
2874 | ev_stat_stop (EV_P_ ev_stat *w) |
2319 | { |
2875 | { |
2320 | clear_pending (EV_A_ (W)w); |
2876 | clear_pending (EV_A_ (W)w); |
2321 | if (expect_false (!ev_is_active (w))) |
2877 | if (expect_false (!ev_is_active (w))) |
2322 | return; |
2878 | return; |
2323 | |
2879 | |
|
|
2880 | EV_FREQUENT_CHECK; |
|
|
2881 | |
2324 | #if EV_USE_INOTIFY |
2882 | #if EV_USE_INOTIFY |
2325 | infy_del (EV_A_ w); |
2883 | infy_del (EV_A_ w); |
2326 | #endif |
2884 | #endif |
2327 | ev_timer_stop (EV_A_ &w->timer); |
2885 | ev_timer_stop (EV_A_ &w->timer); |
2328 | |
2886 | |
2329 | ev_stop (EV_A_ (W)w); |
2887 | ev_stop (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
2330 | } |
2890 | } |
2331 | #endif |
2891 | #endif |
2332 | |
2892 | |
2333 | #if EV_IDLE_ENABLE |
2893 | #if EV_IDLE_ENABLE |
2334 | void |
2894 | void |
… | |
… | |
2336 | { |
2896 | { |
2337 | if (expect_false (ev_is_active (w))) |
2897 | if (expect_false (ev_is_active (w))) |
2338 | return; |
2898 | return; |
2339 | |
2899 | |
2340 | pri_adjust (EV_A_ (W)w); |
2900 | pri_adjust (EV_A_ (W)w); |
|
|
2901 | |
|
|
2902 | EV_FREQUENT_CHECK; |
2341 | |
2903 | |
2342 | { |
2904 | { |
2343 | int active = ++idlecnt [ABSPRI (w)]; |
2905 | int active = ++idlecnt [ABSPRI (w)]; |
2344 | |
2906 | |
2345 | ++idleall; |
2907 | ++idleall; |
2346 | ev_start (EV_A_ (W)w, active); |
2908 | ev_start (EV_A_ (W)w, active); |
2347 | |
2909 | |
2348 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2910 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2349 | idles [ABSPRI (w)][active - 1] = w; |
2911 | idles [ABSPRI (w)][active - 1] = w; |
2350 | } |
2912 | } |
|
|
2913 | |
|
|
2914 | EV_FREQUENT_CHECK; |
2351 | } |
2915 | } |
2352 | |
2916 | |
2353 | void |
2917 | void |
2354 | ev_idle_stop (EV_P_ ev_idle *w) |
2918 | ev_idle_stop (EV_P_ ev_idle *w) |
2355 | { |
2919 | { |
2356 | clear_pending (EV_A_ (W)w); |
2920 | clear_pending (EV_A_ (W)w); |
2357 | if (expect_false (!ev_is_active (w))) |
2921 | if (expect_false (!ev_is_active (w))) |
2358 | return; |
2922 | return; |
2359 | |
2923 | |
|
|
2924 | EV_FREQUENT_CHECK; |
|
|
2925 | |
2360 | { |
2926 | { |
2361 | int active = ((W)w)->active; |
2927 | int active = ev_active (w); |
2362 | |
2928 | |
2363 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2929 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2364 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
2930 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2365 | |
2931 | |
2366 | ev_stop (EV_A_ (W)w); |
2932 | ev_stop (EV_A_ (W)w); |
2367 | --idleall; |
2933 | --idleall; |
2368 | } |
2934 | } |
|
|
2935 | |
|
|
2936 | EV_FREQUENT_CHECK; |
2369 | } |
2937 | } |
2370 | #endif |
2938 | #endif |
2371 | |
2939 | |
2372 | void |
2940 | void |
2373 | ev_prepare_start (EV_P_ ev_prepare *w) |
2941 | ev_prepare_start (EV_P_ ev_prepare *w) |
2374 | { |
2942 | { |
2375 | if (expect_false (ev_is_active (w))) |
2943 | if (expect_false (ev_is_active (w))) |
2376 | return; |
2944 | return; |
|
|
2945 | |
|
|
2946 | EV_FREQUENT_CHECK; |
2377 | |
2947 | |
2378 | ev_start (EV_A_ (W)w, ++preparecnt); |
2948 | ev_start (EV_A_ (W)w, ++preparecnt); |
2379 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2949 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2380 | prepares [preparecnt - 1] = w; |
2950 | prepares [preparecnt - 1] = w; |
|
|
2951 | |
|
|
2952 | EV_FREQUENT_CHECK; |
2381 | } |
2953 | } |
2382 | |
2954 | |
2383 | void |
2955 | void |
2384 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2956 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2385 | { |
2957 | { |
2386 | clear_pending (EV_A_ (W)w); |
2958 | clear_pending (EV_A_ (W)w); |
2387 | if (expect_false (!ev_is_active (w))) |
2959 | if (expect_false (!ev_is_active (w))) |
2388 | return; |
2960 | return; |
2389 | |
2961 | |
|
|
2962 | EV_FREQUENT_CHECK; |
|
|
2963 | |
2390 | { |
2964 | { |
2391 | int active = ((W)w)->active; |
2965 | int active = ev_active (w); |
|
|
2966 | |
2392 | prepares [active - 1] = prepares [--preparecnt]; |
2967 | prepares [active - 1] = prepares [--preparecnt]; |
2393 | ((W)prepares [active - 1])->active = active; |
2968 | ev_active (prepares [active - 1]) = active; |
2394 | } |
2969 | } |
2395 | |
2970 | |
2396 | ev_stop (EV_A_ (W)w); |
2971 | ev_stop (EV_A_ (W)w); |
|
|
2972 | |
|
|
2973 | EV_FREQUENT_CHECK; |
2397 | } |
2974 | } |
2398 | |
2975 | |
2399 | void |
2976 | void |
2400 | ev_check_start (EV_P_ ev_check *w) |
2977 | ev_check_start (EV_P_ ev_check *w) |
2401 | { |
2978 | { |
2402 | if (expect_false (ev_is_active (w))) |
2979 | if (expect_false (ev_is_active (w))) |
2403 | return; |
2980 | return; |
|
|
2981 | |
|
|
2982 | EV_FREQUENT_CHECK; |
2404 | |
2983 | |
2405 | ev_start (EV_A_ (W)w, ++checkcnt); |
2984 | ev_start (EV_A_ (W)w, ++checkcnt); |
2406 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2985 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2407 | checks [checkcnt - 1] = w; |
2986 | checks [checkcnt - 1] = w; |
|
|
2987 | |
|
|
2988 | EV_FREQUENT_CHECK; |
2408 | } |
2989 | } |
2409 | |
2990 | |
2410 | void |
2991 | void |
2411 | ev_check_stop (EV_P_ ev_check *w) |
2992 | ev_check_stop (EV_P_ ev_check *w) |
2412 | { |
2993 | { |
2413 | clear_pending (EV_A_ (W)w); |
2994 | clear_pending (EV_A_ (W)w); |
2414 | if (expect_false (!ev_is_active (w))) |
2995 | if (expect_false (!ev_is_active (w))) |
2415 | return; |
2996 | return; |
2416 | |
2997 | |
|
|
2998 | EV_FREQUENT_CHECK; |
|
|
2999 | |
2417 | { |
3000 | { |
2418 | int active = ((W)w)->active; |
3001 | int active = ev_active (w); |
|
|
3002 | |
2419 | checks [active - 1] = checks [--checkcnt]; |
3003 | checks [active - 1] = checks [--checkcnt]; |
2420 | ((W)checks [active - 1])->active = active; |
3004 | ev_active (checks [active - 1]) = active; |
2421 | } |
3005 | } |
2422 | |
3006 | |
2423 | ev_stop (EV_A_ (W)w); |
3007 | ev_stop (EV_A_ (W)w); |
|
|
3008 | |
|
|
3009 | EV_FREQUENT_CHECK; |
2424 | } |
3010 | } |
2425 | |
3011 | |
2426 | #if EV_EMBED_ENABLE |
3012 | #if EV_EMBED_ENABLE |
2427 | void noinline |
3013 | void noinline |
2428 | ev_embed_sweep (EV_P_ ev_embed *w) |
3014 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2455 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3041 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2456 | } |
3042 | } |
2457 | } |
3043 | } |
2458 | } |
3044 | } |
2459 | |
3045 | |
|
|
3046 | static void |
|
|
3047 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3048 | { |
|
|
3049 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3050 | |
|
|
3051 | ev_embed_stop (EV_A_ w); |
|
|
3052 | |
|
|
3053 | { |
|
|
3054 | struct ev_loop *loop = w->other; |
|
|
3055 | |
|
|
3056 | ev_loop_fork (EV_A); |
|
|
3057 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3058 | } |
|
|
3059 | |
|
|
3060 | ev_embed_start (EV_A_ w); |
|
|
3061 | } |
|
|
3062 | |
2460 | #if 0 |
3063 | #if 0 |
2461 | static void |
3064 | static void |
2462 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3065 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2463 | { |
3066 | { |
2464 | ev_idle_stop (EV_A_ idle); |
3067 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2471 | if (expect_false (ev_is_active (w))) |
3074 | if (expect_false (ev_is_active (w))) |
2472 | return; |
3075 | return; |
2473 | |
3076 | |
2474 | { |
3077 | { |
2475 | struct ev_loop *loop = w->other; |
3078 | struct ev_loop *loop = w->other; |
2476 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3079 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2477 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3080 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2478 | } |
3081 | } |
|
|
3082 | |
|
|
3083 | EV_FREQUENT_CHECK; |
2479 | |
3084 | |
2480 | ev_set_priority (&w->io, ev_priority (w)); |
3085 | ev_set_priority (&w->io, ev_priority (w)); |
2481 | ev_io_start (EV_A_ &w->io); |
3086 | ev_io_start (EV_A_ &w->io); |
2482 | |
3087 | |
2483 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3088 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2484 | ev_set_priority (&w->prepare, EV_MINPRI); |
3089 | ev_set_priority (&w->prepare, EV_MINPRI); |
2485 | ev_prepare_start (EV_A_ &w->prepare); |
3090 | ev_prepare_start (EV_A_ &w->prepare); |
2486 | |
3091 | |
|
|
3092 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3093 | ev_fork_start (EV_A_ &w->fork); |
|
|
3094 | |
2487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3095 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2488 | |
3096 | |
2489 | ev_start (EV_A_ (W)w, 1); |
3097 | ev_start (EV_A_ (W)w, 1); |
|
|
3098 | |
|
|
3099 | EV_FREQUENT_CHECK; |
2490 | } |
3100 | } |
2491 | |
3101 | |
2492 | void |
3102 | void |
2493 | ev_embed_stop (EV_P_ ev_embed *w) |
3103 | ev_embed_stop (EV_P_ ev_embed *w) |
2494 | { |
3104 | { |
2495 | clear_pending (EV_A_ (W)w); |
3105 | clear_pending (EV_A_ (W)w); |
2496 | if (expect_false (!ev_is_active (w))) |
3106 | if (expect_false (!ev_is_active (w))) |
2497 | return; |
3107 | return; |
2498 | |
3108 | |
|
|
3109 | EV_FREQUENT_CHECK; |
|
|
3110 | |
2499 | ev_io_stop (EV_A_ &w->io); |
3111 | ev_io_stop (EV_A_ &w->io); |
2500 | ev_prepare_stop (EV_A_ &w->prepare); |
3112 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3113 | ev_fork_stop (EV_A_ &w->fork); |
2501 | |
3114 | |
2502 | ev_stop (EV_A_ (W)w); |
3115 | EV_FREQUENT_CHECK; |
2503 | } |
3116 | } |
2504 | #endif |
3117 | #endif |
2505 | |
3118 | |
2506 | #if EV_FORK_ENABLE |
3119 | #if EV_FORK_ENABLE |
2507 | void |
3120 | void |
2508 | ev_fork_start (EV_P_ ev_fork *w) |
3121 | ev_fork_start (EV_P_ ev_fork *w) |
2509 | { |
3122 | { |
2510 | if (expect_false (ev_is_active (w))) |
3123 | if (expect_false (ev_is_active (w))) |
2511 | return; |
3124 | return; |
|
|
3125 | |
|
|
3126 | EV_FREQUENT_CHECK; |
2512 | |
3127 | |
2513 | ev_start (EV_A_ (W)w, ++forkcnt); |
3128 | ev_start (EV_A_ (W)w, ++forkcnt); |
2514 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3129 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2515 | forks [forkcnt - 1] = w; |
3130 | forks [forkcnt - 1] = w; |
|
|
3131 | |
|
|
3132 | EV_FREQUENT_CHECK; |
2516 | } |
3133 | } |
2517 | |
3134 | |
2518 | void |
3135 | void |
2519 | ev_fork_stop (EV_P_ ev_fork *w) |
3136 | ev_fork_stop (EV_P_ ev_fork *w) |
2520 | { |
3137 | { |
2521 | clear_pending (EV_A_ (W)w); |
3138 | clear_pending (EV_A_ (W)w); |
2522 | if (expect_false (!ev_is_active (w))) |
3139 | if (expect_false (!ev_is_active (w))) |
2523 | return; |
3140 | return; |
2524 | |
3141 | |
|
|
3142 | EV_FREQUENT_CHECK; |
|
|
3143 | |
2525 | { |
3144 | { |
2526 | int active = ((W)w)->active; |
3145 | int active = ev_active (w); |
|
|
3146 | |
2527 | forks [active - 1] = forks [--forkcnt]; |
3147 | forks [active - 1] = forks [--forkcnt]; |
2528 | ((W)forks [active - 1])->active = active; |
3148 | ev_active (forks [active - 1]) = active; |
2529 | } |
3149 | } |
2530 | |
3150 | |
2531 | ev_stop (EV_A_ (W)w); |
3151 | ev_stop (EV_A_ (W)w); |
|
|
3152 | |
|
|
3153 | EV_FREQUENT_CHECK; |
2532 | } |
3154 | } |
2533 | #endif |
3155 | #endif |
2534 | |
3156 | |
2535 | #if EV_ASYNC_ENABLE |
3157 | #if EV_ASYNC_ENABLE |
2536 | void |
3158 | void |
… | |
… | |
2538 | { |
3160 | { |
2539 | if (expect_false (ev_is_active (w))) |
3161 | if (expect_false (ev_is_active (w))) |
2540 | return; |
3162 | return; |
2541 | |
3163 | |
2542 | evpipe_init (EV_A); |
3164 | evpipe_init (EV_A); |
|
|
3165 | |
|
|
3166 | EV_FREQUENT_CHECK; |
2543 | |
3167 | |
2544 | ev_start (EV_A_ (W)w, ++asynccnt); |
3168 | ev_start (EV_A_ (W)w, ++asynccnt); |
2545 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3169 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2546 | asyncs [asynccnt - 1] = w; |
3170 | asyncs [asynccnt - 1] = w; |
|
|
3171 | |
|
|
3172 | EV_FREQUENT_CHECK; |
2547 | } |
3173 | } |
2548 | |
3174 | |
2549 | void |
3175 | void |
2550 | ev_async_stop (EV_P_ ev_async *w) |
3176 | ev_async_stop (EV_P_ ev_async *w) |
2551 | { |
3177 | { |
2552 | clear_pending (EV_A_ (W)w); |
3178 | clear_pending (EV_A_ (W)w); |
2553 | if (expect_false (!ev_is_active (w))) |
3179 | if (expect_false (!ev_is_active (w))) |
2554 | return; |
3180 | return; |
2555 | |
3181 | |
|
|
3182 | EV_FREQUENT_CHECK; |
|
|
3183 | |
2556 | { |
3184 | { |
2557 | int active = ((W)w)->active; |
3185 | int active = ev_active (w); |
|
|
3186 | |
2558 | asyncs [active - 1] = asyncs [--asynccnt]; |
3187 | asyncs [active - 1] = asyncs [--asynccnt]; |
2559 | ((W)asyncs [active - 1])->active = active; |
3188 | ev_active (asyncs [active - 1]) = active; |
2560 | } |
3189 | } |
2561 | |
3190 | |
2562 | ev_stop (EV_A_ (W)w); |
3191 | ev_stop (EV_A_ (W)w); |
|
|
3192 | |
|
|
3193 | EV_FREQUENT_CHECK; |
2563 | } |
3194 | } |
2564 | |
3195 | |
2565 | void |
3196 | void |
2566 | ev_async_send (EV_P_ ev_async *w) |
3197 | ev_async_send (EV_P_ ev_async *w) |
2567 | { |
3198 | { |
… | |
… | |
2584 | once_cb (EV_P_ struct ev_once *once, int revents) |
3215 | once_cb (EV_P_ struct ev_once *once, int revents) |
2585 | { |
3216 | { |
2586 | void (*cb)(int revents, void *arg) = once->cb; |
3217 | void (*cb)(int revents, void *arg) = once->cb; |
2587 | void *arg = once->arg; |
3218 | void *arg = once->arg; |
2588 | |
3219 | |
2589 | ev_io_stop (EV_A_ &once->io); |
3220 | ev_io_stop (EV_A_ &once->io); |
2590 | ev_timer_stop (EV_A_ &once->to); |
3221 | ev_timer_stop (EV_A_ &once->to); |
2591 | ev_free (once); |
3222 | ev_free (once); |
2592 | |
3223 | |
2593 | cb (revents, arg); |
3224 | cb (revents, arg); |
2594 | } |
3225 | } |
2595 | |
3226 | |
2596 | static void |
3227 | static void |
2597 | once_cb_io (EV_P_ ev_io *w, int revents) |
3228 | once_cb_io (EV_P_ ev_io *w, int revents) |
2598 | { |
3229 | { |
2599 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3230 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3231 | |
|
|
3232 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2600 | } |
3233 | } |
2601 | |
3234 | |
2602 | static void |
3235 | static void |
2603 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3236 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2604 | { |
3237 | { |
2605 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3238 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3239 | |
|
|
3240 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2606 | } |
3241 | } |
2607 | |
3242 | |
2608 | void |
3243 | void |
2609 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3244 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2610 | { |
3245 | { |
… | |
… | |
2632 | ev_timer_set (&once->to, timeout, 0.); |
3267 | ev_timer_set (&once->to, timeout, 0.); |
2633 | ev_timer_start (EV_A_ &once->to); |
3268 | ev_timer_start (EV_A_ &once->to); |
2634 | } |
3269 | } |
2635 | } |
3270 | } |
2636 | |
3271 | |
|
|
3272 | /*****************************************************************************/ |
|
|
3273 | |
|
|
3274 | #if EV_WALK_ENABLE |
|
|
3275 | void |
|
|
3276 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3277 | { |
|
|
3278 | int i, j; |
|
|
3279 | ev_watcher_list *wl, *wn; |
|
|
3280 | |
|
|
3281 | if (types & (EV_IO | EV_EMBED)) |
|
|
3282 | for (i = 0; i < anfdmax; ++i) |
|
|
3283 | for (wl = anfds [i].head; wl; ) |
|
|
3284 | { |
|
|
3285 | wn = wl->next; |
|
|
3286 | |
|
|
3287 | #if EV_EMBED_ENABLE |
|
|
3288 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3289 | { |
|
|
3290 | if (types & EV_EMBED) |
|
|
3291 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3292 | } |
|
|
3293 | else |
|
|
3294 | #endif |
|
|
3295 | #if EV_USE_INOTIFY |
|
|
3296 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3297 | ; |
|
|
3298 | else |
|
|
3299 | #endif |
|
|
3300 | if ((ev_io *)wl != &pipe_w) |
|
|
3301 | if (types & EV_IO) |
|
|
3302 | cb (EV_A_ EV_IO, wl); |
|
|
3303 | |
|
|
3304 | wl = wn; |
|
|
3305 | } |
|
|
3306 | |
|
|
3307 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3308 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3309 | #if EV_STAT_ENABLE |
|
|
3310 | /*TODO: timer is not always active*/ |
|
|
3311 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3312 | { |
|
|
3313 | if (types & EV_STAT) |
|
|
3314 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3315 | } |
|
|
3316 | else |
|
|
3317 | #endif |
|
|
3318 | if (types & EV_TIMER) |
|
|
3319 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3320 | |
|
|
3321 | #if EV_PERIODIC_ENABLE |
|
|
3322 | if (types & EV_PERIODIC) |
|
|
3323 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3324 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3325 | #endif |
|
|
3326 | |
|
|
3327 | #if EV_IDLE_ENABLE |
|
|
3328 | if (types & EV_IDLE) |
|
|
3329 | for (j = NUMPRI; i--; ) |
|
|
3330 | for (i = idlecnt [j]; i--; ) |
|
|
3331 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3332 | #endif |
|
|
3333 | |
|
|
3334 | #if EV_FORK_ENABLE |
|
|
3335 | if (types & EV_FORK) |
|
|
3336 | for (i = forkcnt; i--; ) |
|
|
3337 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3338 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3339 | #endif |
|
|
3340 | |
|
|
3341 | #if EV_ASYNC_ENABLE |
|
|
3342 | if (types & EV_ASYNC) |
|
|
3343 | for (i = asynccnt; i--; ) |
|
|
3344 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3345 | #endif |
|
|
3346 | |
|
|
3347 | if (types & EV_PREPARE) |
|
|
3348 | for (i = preparecnt; i--; ) |
|
|
3349 | #if EV_EMBED_ENABLE |
|
|
3350 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3351 | #endif |
|
|
3352 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3353 | |
|
|
3354 | if (types & EV_CHECK) |
|
|
3355 | for (i = checkcnt; i--; ) |
|
|
3356 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3357 | |
|
|
3358 | if (types & EV_SIGNAL) |
|
|
3359 | for (i = 0; i < signalmax; ++i) |
|
|
3360 | for (wl = signals [i].head; wl; ) |
|
|
3361 | { |
|
|
3362 | wn = wl->next; |
|
|
3363 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3364 | wl = wn; |
|
|
3365 | } |
|
|
3366 | |
|
|
3367 | if (types & EV_CHILD) |
|
|
3368 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3369 | for (wl = childs [i]; wl; ) |
|
|
3370 | { |
|
|
3371 | wn = wl->next; |
|
|
3372 | cb (EV_A_ EV_CHILD, wl); |
|
|
3373 | wl = wn; |
|
|
3374 | } |
|
|
3375 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3376 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3377 | } |
|
|
3378 | #endif |
|
|
3379 | |
2637 | #if EV_MULTIPLICITY |
3380 | #if EV_MULTIPLICITY |
2638 | #include "ev_wrap.h" |
3381 | #include "ev_wrap.h" |
2639 | #endif |
3382 | #endif |
2640 | |
3383 | |
2641 | #ifdef __cplusplus |
3384 | #ifdef __cplusplus |