1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 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 |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
|
|
10 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
11 | * this list of conditions and the following disclaimer. |
|
|
12 | * |
|
|
13 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
14 | * notice, this list of conditions and the following disclaimer in the |
|
|
15 | * documentation and/or other materials provided with the distribution. |
|
|
16 | * |
|
|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
|
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
|
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
|
24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
|
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
|
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
|
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
|
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
|
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
59 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
60 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
61 | # endif |
54 | # ifndef EV_USE_REALTIME |
62 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
63 | # define EV_USE_REALTIME 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_NANOSLEEP |
|
|
68 | # if HAVE_NANOSLEEP |
|
|
69 | # define EV_USE_NANOSLEEP 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
72 | # endif |
57 | # endif |
73 | # endif |
58 | |
74 | |
59 | # ifndef EV_USE_SELECT |
75 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
146 | |
162 | |
147 | #ifndef EV_USE_REALTIME |
163 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
164 | # define EV_USE_REALTIME 0 |
149 | #endif |
165 | #endif |
150 | |
166 | |
|
|
167 | #ifndef EV_USE_NANOSLEEP |
|
|
168 | # define EV_USE_NANOSLEEP 0 |
|
|
169 | #endif |
|
|
170 | |
151 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
153 | #endif |
173 | #endif |
154 | |
174 | |
155 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
205 | #endif |
225 | #endif |
206 | |
226 | |
|
|
227 | #if !EV_STAT_ENABLE |
|
|
228 | # undef EV_USE_INOTIFY |
|
|
229 | # define EV_USE_INOTIFY 0 |
|
|
230 | #endif |
|
|
231 | |
|
|
232 | #if !EV_USE_NANOSLEEP |
|
|
233 | # ifndef _WIN32 |
|
|
234 | # include <sys/select.h> |
|
|
235 | # endif |
|
|
236 | #endif |
|
|
237 | |
|
|
238 | #if EV_USE_INOTIFY |
|
|
239 | # include <sys/inotify.h> |
|
|
240 | #endif |
|
|
241 | |
207 | #if EV_SELECT_IS_WINSOCKET |
242 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
243 | # include <winsock.h> |
209 | #endif |
244 | #endif |
210 | |
245 | |
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
|
|
219 | /**/ |
246 | /**/ |
|
|
247 | |
|
|
248 | /* |
|
|
249 | * This is used to avoid floating point rounding problems. |
|
|
250 | * It is added to ev_rt_now when scheduling periodics |
|
|
251 | * to ensure progress, time-wise, even when rounding |
|
|
252 | * errors are against us. |
|
|
253 | * This value is good at least till the year 4000. |
|
|
254 | * Better solutions welcome. |
|
|
255 | */ |
|
|
256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
257 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
261 | |
225 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define inline_size static inline /* inline for codesize */ |
|
|
228 | # if EV_MINIMAL |
|
|
229 | # define noinline __attribute__ ((noinline)) |
264 | # define noinline __attribute__ ((noinline)) |
230 | # define inline_speed static noinline |
|
|
231 | # else |
|
|
232 | # define noinline |
|
|
233 | # define inline_speed static inline |
|
|
234 | # endif |
|
|
235 | #else |
265 | #else |
236 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
237 | # define inline_speed static |
|
|
238 | # define inline_size static |
|
|
239 | # define noinline |
267 | # define noinline |
|
|
268 | # if __STDC_VERSION__ < 199901L |
|
|
269 | # define inline |
|
|
270 | # endif |
240 | #endif |
271 | #endif |
241 | |
272 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
275 | #define inline_size static inline |
|
|
276 | |
|
|
277 | #if EV_MINIMAL |
|
|
278 | # define inline_speed static noinline |
|
|
279 | #else |
|
|
280 | # define inline_speed static inline |
|
|
281 | #endif |
244 | |
282 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
285 | |
248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
250 | |
288 | |
251 | typedef ev_watcher *W; |
289 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
254 | |
292 | |
|
|
293 | #if EV_USE_MONOTONIC |
|
|
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
297 | #endif |
256 | |
298 | |
257 | #ifdef _WIN32 |
299 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
300 | # include "ev_win32.c" |
259 | #endif |
301 | #endif |
260 | |
302 | |
… | |
… | |
396 | { |
438 | { |
397 | return ev_rt_now; |
439 | return ev_rt_now; |
398 | } |
440 | } |
399 | #endif |
441 | #endif |
400 | |
442 | |
401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
443 | void |
|
|
444 | ev_sleep (ev_tstamp delay) |
|
|
445 | { |
|
|
446 | if (delay > 0.) |
|
|
447 | { |
|
|
448 | #if EV_USE_NANOSLEEP |
|
|
449 | struct timespec ts; |
|
|
450 | |
|
|
451 | ts.tv_sec = (time_t)delay; |
|
|
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
453 | |
|
|
454 | nanosleep (&ts, 0); |
|
|
455 | #elif defined(_WIN32) |
|
|
456 | Sleep (delay * 1e3); |
|
|
457 | #else |
|
|
458 | struct timeval tv; |
|
|
459 | |
|
|
460 | tv.tv_sec = (time_t)delay; |
|
|
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
462 | |
|
|
463 | select (0, 0, 0, 0, &tv); |
|
|
464 | #endif |
|
|
465 | } |
|
|
466 | } |
|
|
467 | |
|
|
468 | /*****************************************************************************/ |
|
|
469 | |
|
|
470 | int inline_size |
|
|
471 | array_nextsize (int elem, int cur, int cnt) |
|
|
472 | { |
|
|
473 | int ncur = cur + 1; |
|
|
474 | |
|
|
475 | do |
|
|
476 | ncur <<= 1; |
|
|
477 | while (cnt > ncur); |
|
|
478 | |
|
|
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
480 | if (elem * ncur > 4096) |
|
|
481 | { |
|
|
482 | ncur *= elem; |
|
|
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
484 | ncur = ncur - sizeof (void *) * 4; |
|
|
485 | ncur /= elem; |
|
|
486 | } |
|
|
487 | |
|
|
488 | return ncur; |
|
|
489 | } |
|
|
490 | |
|
|
491 | static noinline void * |
|
|
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
493 | { |
|
|
494 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
495 | return ev_realloc (base, elem * *cur); |
|
|
496 | } |
402 | |
497 | |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
404 | if (expect_false ((cnt) > cur)) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
405 | { \ |
500 | { \ |
406 | int newcnt = cur; \ |
501 | int ocur_ = (cur); \ |
407 | do \ |
502 | (base) = (type *)array_realloc \ |
408 | { \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
409 | newcnt = array_roundsize (type, newcnt << 1); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
410 | } \ |
|
|
411 | while ((cnt) > newcnt); \ |
|
|
412 | \ |
|
|
413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
414 | init (base + cur, newcnt - cur); \ |
|
|
415 | cur = newcnt; \ |
|
|
416 | } |
505 | } |
417 | |
506 | |
|
|
507 | #if 0 |
418 | #define array_slim(type,stem) \ |
508 | #define array_slim(type,stem) \ |
419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
420 | { \ |
510 | { \ |
421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
424 | } |
514 | } |
|
|
515 | #endif |
425 | |
516 | |
426 | #define array_free(stem, idx) \ |
517 | #define array_free(stem, idx) \ |
427 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
428 | |
519 | |
429 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
430 | |
521 | |
431 | void noinline |
522 | void noinline |
432 | ev_feed_event (EV_P_ void *w, int revents) |
523 | ev_feed_event (EV_P_ void *w, int revents) |
433 | { |
524 | { |
434 | W w_ = (W)w; |
525 | W w_ = (W)w; |
|
|
526 | int pri = ABSPRI (w_); |
435 | |
527 | |
436 | if (expect_false (w_->pending)) |
528 | if (expect_false (w_->pending)) |
|
|
529 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
530 | else |
437 | { |
531 | { |
|
|
532 | w_->pending = ++pendingcnt [pri]; |
|
|
533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
534 | pendings [pri][w_->pending - 1].w = w_; |
438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
535 | pendings [pri][w_->pending - 1].events = revents; |
439 | return; |
|
|
440 | } |
536 | } |
441 | |
|
|
442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
537 | } |
447 | |
538 | |
448 | void inline_size |
539 | void inline_speed |
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
450 | { |
541 | { |
451 | int i; |
542 | int i; |
452 | |
543 | |
453 | for (i = 0; i < eventcnt; ++i) |
544 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
485 | } |
576 | } |
486 | |
577 | |
487 | void |
578 | void |
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
489 | { |
580 | { |
|
|
581 | if (fd >= 0 && fd < anfdmax) |
490 | fd_event (EV_A_ fd, revents); |
582 | fd_event (EV_A_ fd, revents); |
491 | } |
583 | } |
492 | |
584 | |
493 | void inline_size |
585 | void inline_size |
494 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
495 | { |
587 | { |
… | |
… | |
499 | { |
591 | { |
500 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
501 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
502 | ev_io *w; |
594 | ev_io *w; |
503 | |
595 | |
504 | int events = 0; |
596 | unsigned char events = 0; |
505 | |
597 | |
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
507 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
508 | |
600 | |
509 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
510 | if (events) |
602 | if (events) |
511 | { |
603 | { |
512 | unsigned long argp; |
604 | unsigned long argp; |
|
|
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
607 | #else |
513 | anfd->handle = _get_osfhandle (fd); |
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
514 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
515 | } |
611 | } |
516 | #endif |
612 | #endif |
517 | |
613 | |
|
|
614 | { |
|
|
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
518 | anfd->reify = 0; |
618 | anfd->reify = 0; |
519 | |
|
|
520 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
521 | anfd->events = events; |
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
|
|
623 | } |
522 | } |
624 | } |
523 | |
625 | |
524 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
525 | } |
627 | } |
526 | |
628 | |
527 | void inline_size |
629 | void inline_size |
528 | fd_change (EV_P_ int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
529 | { |
631 | { |
530 | if (expect_false (anfds [fd].reify)) |
632 | unsigned char reify = anfds [fd].reify; |
531 | return; |
|
|
532 | |
|
|
533 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
534 | |
634 | |
|
|
635 | if (expect_true (!reify)) |
|
|
636 | { |
535 | ++fdchangecnt; |
637 | ++fdchangecnt; |
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
537 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
|
|
640 | } |
538 | } |
641 | } |
539 | |
642 | |
540 | void inline_speed |
643 | void inline_speed |
541 | fd_kill (EV_P_ int fd) |
644 | fd_kill (EV_P_ int fd) |
542 | { |
645 | { |
… | |
… | |
589 | static void noinline |
692 | static void noinline |
590 | fd_rearm_all (EV_P) |
693 | fd_rearm_all (EV_P) |
591 | { |
694 | { |
592 | int fd; |
695 | int fd; |
593 | |
696 | |
594 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
595 | for (fd = 0; fd < anfdmax; ++fd) |
697 | for (fd = 0; fd < anfdmax; ++fd) |
596 | if (anfds [fd].events) |
698 | if (anfds [fd].events) |
597 | { |
699 | { |
598 | anfds [fd].events = 0; |
700 | anfds [fd].events = 0; |
599 | fd_change (EV_A_ fd); |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
600 | } |
702 | } |
601 | } |
703 | } |
602 | |
704 | |
603 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
604 | |
706 | |
605 | void inline_speed |
707 | void inline_speed |
606 | upheap (WT *heap, int k) |
708 | upheap (WT *heap, int k) |
607 | { |
709 | { |
608 | WT w = heap [k]; |
710 | WT w = heap [k]; |
609 | |
711 | |
610 | while (k && heap [k >> 1]->at > w->at) |
712 | while (k) |
611 | { |
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
612 | heap [k] = heap [k >> 1]; |
719 | heap [k] = heap [p]; |
613 | ((W)heap [k])->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
614 | k >>= 1; |
721 | k = p; |
615 | } |
722 | } |
616 | |
723 | |
617 | heap [k] = w; |
724 | heap [k] = w; |
618 | ((W)heap [k])->active = k + 1; |
725 | ((W)heap [k])->active = k + 1; |
619 | |
|
|
620 | } |
726 | } |
621 | |
727 | |
622 | void inline_speed |
728 | void inline_speed |
623 | downheap (WT *heap, int N, int k) |
729 | downheap (WT *heap, int N, int k) |
624 | { |
730 | { |
625 | WT w = heap [k]; |
731 | WT w = heap [k]; |
626 | |
732 | |
627 | while (k < (N >> 1)) |
733 | for (;;) |
628 | { |
734 | { |
629 | int j = k << 1; |
735 | int c = (k << 1) + 1; |
630 | |
736 | |
631 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
737 | if (c >= N) |
632 | ++j; |
|
|
633 | |
|
|
634 | if (w->at <= heap [j]->at) |
|
|
635 | break; |
738 | break; |
636 | |
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
637 | heap [k] = heap [j]; |
746 | heap [k] = heap [c]; |
638 | ((W)heap [k])->active = k + 1; |
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
639 | k = j; |
749 | k = c; |
640 | } |
750 | } |
641 | |
751 | |
642 | heap [k] = w; |
752 | heap [k] = w; |
643 | ((W)heap [k])->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
644 | } |
754 | } |
… | |
… | |
653 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
654 | |
764 | |
655 | typedef struct |
765 | typedef struct |
656 | { |
766 | { |
657 | WL head; |
767 | WL head; |
658 | sig_atomic_t volatile gotsig; |
768 | EV_ATOMIC_T gotsig; |
659 | } ANSIG; |
769 | } ANSIG; |
660 | |
770 | |
661 | static ANSIG *signals; |
771 | static ANSIG *signals; |
662 | static int signalmax; |
772 | static int signalmax; |
663 | |
773 | |
664 | static int sigpipe [2]; |
774 | static EV_ATOMIC_T gotsig; |
665 | static sig_atomic_t volatile gotsig; |
|
|
666 | static ev_io sigev; |
|
|
667 | |
775 | |
668 | void inline_size |
776 | void inline_size |
669 | signals_init (ANSIG *base, int count) |
777 | signals_init (ANSIG *base, int count) |
670 | { |
778 | { |
671 | while (count--) |
779 | while (count--) |
… | |
… | |
675 | |
783 | |
676 | ++base; |
784 | ++base; |
677 | } |
785 | } |
678 | } |
786 | } |
679 | |
787 | |
680 | static void |
788 | /*****************************************************************************/ |
681 | sighandler (int signum) |
|
|
682 | { |
|
|
683 | #if _WIN32 |
|
|
684 | signal (signum, sighandler); |
|
|
685 | #endif |
|
|
686 | |
789 | |
687 | signals [signum - 1].gotsig = 1; |
|
|
688 | |
|
|
689 | if (!gotsig) |
|
|
690 | { |
|
|
691 | int old_errno = errno; |
|
|
692 | gotsig = 1; |
|
|
693 | write (sigpipe [1], &signum, 1); |
|
|
694 | errno = old_errno; |
|
|
695 | } |
|
|
696 | } |
|
|
697 | |
|
|
698 | void noinline |
|
|
699 | ev_feed_signal_event (EV_P_ int signum) |
|
|
700 | { |
|
|
701 | WL w; |
|
|
702 | |
|
|
703 | #if EV_MULTIPLICITY |
|
|
704 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
705 | #endif |
|
|
706 | |
|
|
707 | --signum; |
|
|
708 | |
|
|
709 | if (signum < 0 || signum >= signalmax) |
|
|
710 | return; |
|
|
711 | |
|
|
712 | signals [signum].gotsig = 0; |
|
|
713 | |
|
|
714 | for (w = signals [signum].head; w; w = w->next) |
|
|
715 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
716 | } |
|
|
717 | |
|
|
718 | static void |
|
|
719 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
720 | { |
|
|
721 | int signum; |
|
|
722 | |
|
|
723 | read (sigpipe [0], &revents, 1); |
|
|
724 | gotsig = 0; |
|
|
725 | |
|
|
726 | for (signum = signalmax; signum--; ) |
|
|
727 | if (signals [signum].gotsig) |
|
|
728 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
729 | } |
|
|
730 | |
|
|
731 | void inline_size |
790 | void inline_speed |
732 | fd_intern (int fd) |
791 | fd_intern (int fd) |
733 | { |
792 | { |
734 | #ifdef _WIN32 |
793 | #ifdef _WIN32 |
735 | int arg = 1; |
794 | int arg = 1; |
736 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
739 | fcntl (fd, F_SETFL, O_NONBLOCK); |
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
740 | #endif |
799 | #endif |
741 | } |
800 | } |
742 | |
801 | |
743 | static void noinline |
802 | static void noinline |
744 | siginit (EV_P) |
803 | evpipe_init (EV_P) |
745 | { |
804 | { |
|
|
805 | if (!ev_is_active (&pipeev)) |
|
|
806 | { |
|
|
807 | while (pipe (evpipe)) |
|
|
808 | syserr ("(libev) error creating signal/async pipe"); |
|
|
809 | |
746 | fd_intern (sigpipe [0]); |
810 | fd_intern (evpipe [0]); |
747 | fd_intern (sigpipe [1]); |
811 | fd_intern (evpipe [1]); |
748 | |
812 | |
749 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
750 | ev_io_start (EV_A_ &sigev); |
814 | ev_io_start (EV_A_ &pipeev); |
751 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
821 | { |
|
|
822 | if (!*flag) |
|
|
823 | { |
|
|
824 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
825 | |
|
|
826 | *flag = 1; |
|
|
827 | write (evpipe [1], &old_errno, 1); |
|
|
828 | |
|
|
829 | errno = old_errno; |
|
|
830 | } |
|
|
831 | } |
|
|
832 | |
|
|
833 | static void |
|
|
834 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
835 | { |
|
|
836 | { |
|
|
837 | int dummy; |
|
|
838 | read (evpipe [0], &dummy, 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
842 | { |
|
|
843 | int signum; |
|
|
844 | gotsig = 0; |
|
|
845 | |
|
|
846 | for (signum = signalmax; signum--; ) |
|
|
847 | if (signals [signum].gotsig) |
|
|
848 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
849 | } |
|
|
850 | |
|
|
851 | #if EV_ASYNC_ENABLE |
|
|
852 | if (gotasync) |
|
|
853 | { |
|
|
854 | int i; |
|
|
855 | gotasync = 0; |
|
|
856 | |
|
|
857 | for (i = asynccnt; i--; ) |
|
|
858 | if (asyncs [i]->sent) |
|
|
859 | { |
|
|
860 | asyncs [i]->sent = 0; |
|
|
861 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
862 | } |
|
|
863 | } |
|
|
864 | #endif |
752 | } |
865 | } |
753 | |
866 | |
754 | /*****************************************************************************/ |
867 | /*****************************************************************************/ |
755 | |
868 | |
|
|
869 | static void |
|
|
870 | sighandler (int signum) |
|
|
871 | { |
|
|
872 | #if EV_MULTIPLICITY |
|
|
873 | struct ev_loop *loop = &default_loop_struct; |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | #if _WIN32 |
|
|
877 | signal (signum, sighandler); |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | signals [signum - 1].gotsig = 1; |
|
|
881 | evpipe_write (EV_A_ &gotsig); |
|
|
882 | } |
|
|
883 | |
|
|
884 | void noinline |
|
|
885 | ev_feed_signal_event (EV_P_ int signum) |
|
|
886 | { |
|
|
887 | WL w; |
|
|
888 | |
|
|
889 | #if EV_MULTIPLICITY |
|
|
890 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
891 | #endif |
|
|
892 | |
|
|
893 | --signum; |
|
|
894 | |
|
|
895 | if (signum < 0 || signum >= signalmax) |
|
|
896 | return; |
|
|
897 | |
|
|
898 | signals [signum].gotsig = 0; |
|
|
899 | |
|
|
900 | for (w = signals [signum].head; w; w = w->next) |
|
|
901 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
902 | } |
|
|
903 | |
|
|
904 | /*****************************************************************************/ |
|
|
905 | |
756 | static ev_child *childs [EV_PID_HASHSIZE]; |
906 | static WL childs [EV_PID_HASHSIZE]; |
757 | |
907 | |
758 | #ifndef _WIN32 |
908 | #ifndef _WIN32 |
759 | |
909 | |
760 | static ev_signal childev; |
910 | static ev_signal childev; |
761 | |
911 | |
|
|
912 | #ifndef WIFCONTINUED |
|
|
913 | # define WIFCONTINUED(status) 0 |
|
|
914 | #endif |
|
|
915 | |
762 | void inline_speed |
916 | void inline_speed |
763 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
917 | child_reap (EV_P_ int chain, int pid, int status) |
764 | { |
918 | { |
765 | ev_child *w; |
919 | ev_child *w; |
|
|
920 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
766 | |
921 | |
767 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
922 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
923 | { |
768 | if (w->pid == pid || !w->pid) |
924 | if ((w->pid == pid || !w->pid) |
|
|
925 | && (!traced || (w->flags & 1))) |
769 | { |
926 | { |
770 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
927 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
771 | w->rpid = pid; |
928 | w->rpid = pid; |
772 | w->rstatus = status; |
929 | w->rstatus = status; |
773 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
930 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
774 | } |
931 | } |
|
|
932 | } |
775 | } |
933 | } |
776 | |
934 | |
777 | #ifndef WCONTINUED |
935 | #ifndef WCONTINUED |
778 | # define WCONTINUED 0 |
936 | # define WCONTINUED 0 |
779 | #endif |
937 | #endif |
… | |
… | |
788 | if (!WCONTINUED |
946 | if (!WCONTINUED |
789 | || errno != EINVAL |
947 | || errno != EINVAL |
790 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
948 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
791 | return; |
949 | return; |
792 | |
950 | |
793 | /* make sure we are called again until all childs have been reaped */ |
951 | /* make sure we are called again until all children have been reaped */ |
794 | /* we need to do it this way so that the callback gets called before we continue */ |
952 | /* we need to do it this way so that the callback gets called before we continue */ |
795 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
953 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
796 | |
954 | |
797 | child_reap (EV_A_ sw, pid, pid, status); |
955 | child_reap (EV_A_ pid, pid, status); |
798 | if (EV_PID_HASHSIZE > 1) |
956 | if (EV_PID_HASHSIZE > 1) |
799 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
957 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
800 | } |
958 | } |
801 | |
959 | |
802 | #endif |
960 | #endif |
803 | |
961 | |
804 | /*****************************************************************************/ |
962 | /*****************************************************************************/ |
… | |
… | |
876 | } |
1034 | } |
877 | |
1035 | |
878 | unsigned int |
1036 | unsigned int |
879 | ev_embeddable_backends (void) |
1037 | ev_embeddable_backends (void) |
880 | { |
1038 | { |
881 | return EVBACKEND_EPOLL |
1039 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
882 | | EVBACKEND_KQUEUE |
1040 | |
883 | | EVBACKEND_PORT; |
1041 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1042 | /* please fix it and tell me how to detect the fix */ |
|
|
1043 | flags &= ~EVBACKEND_EPOLL; |
|
|
1044 | |
|
|
1045 | return flags; |
884 | } |
1046 | } |
885 | |
1047 | |
886 | unsigned int |
1048 | unsigned int |
887 | ev_backend (EV_P) |
1049 | ev_backend (EV_P) |
888 | { |
1050 | { |
889 | return backend; |
1051 | return backend; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | unsigned int |
|
|
1055 | ev_loop_count (EV_P) |
|
|
1056 | { |
|
|
1057 | return loop_count; |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | void |
|
|
1061 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1062 | { |
|
|
1063 | io_blocktime = interval; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | void |
|
|
1067 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1068 | { |
|
|
1069 | timeout_blocktime = interval; |
890 | } |
1070 | } |
891 | |
1071 | |
892 | static void noinline |
1072 | static void noinline |
893 | loop_init (EV_P_ unsigned int flags) |
1073 | loop_init (EV_P_ unsigned int flags) |
894 | { |
1074 | { |
… | |
… | |
900 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1080 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
901 | have_monotonic = 1; |
1081 | have_monotonic = 1; |
902 | } |
1082 | } |
903 | #endif |
1083 | #endif |
904 | |
1084 | |
905 | ev_rt_now = ev_time (); |
1085 | ev_rt_now = ev_time (); |
906 | mn_now = get_clock (); |
1086 | mn_now = get_clock (); |
907 | now_floor = mn_now; |
1087 | now_floor = mn_now; |
908 | rtmn_diff = ev_rt_now - mn_now; |
1088 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1089 | |
|
|
1090 | io_blocktime = 0.; |
|
|
1091 | timeout_blocktime = 0.; |
|
|
1092 | backend = 0; |
|
|
1093 | backend_fd = -1; |
|
|
1094 | gotasync = 0; |
|
|
1095 | #if EV_USE_INOTIFY |
|
|
1096 | fs_fd = -2; |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | /* pid check not overridable via env */ |
|
|
1100 | #ifndef _WIN32 |
|
|
1101 | if (flags & EVFLAG_FORKCHECK) |
|
|
1102 | curpid = getpid (); |
|
|
1103 | #endif |
909 | |
1104 | |
910 | if (!(flags & EVFLAG_NOENV) |
1105 | if (!(flags & EVFLAG_NOENV) |
911 | && !enable_secure () |
1106 | && !enable_secure () |
912 | && getenv ("LIBEV_FLAGS")) |
1107 | && getenv ("LIBEV_FLAGS")) |
913 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1108 | flags = atoi (getenv ("LIBEV_FLAGS")); |
914 | |
1109 | |
915 | if (!(flags & 0x0000ffffUL)) |
1110 | if (!(flags & 0x0000ffffUL)) |
916 | flags |= ev_recommended_backends (); |
1111 | flags |= ev_recommended_backends (); |
917 | |
1112 | |
918 | backend = 0; |
|
|
919 | backend_fd = -1; |
|
|
920 | #if EV_USE_INOTIFY |
|
|
921 | fs_fd = -2; |
|
|
922 | #endif |
|
|
923 | |
|
|
924 | #if EV_USE_PORT |
1113 | #if EV_USE_PORT |
925 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1114 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
926 | #endif |
1115 | #endif |
927 | #if EV_USE_KQUEUE |
1116 | #if EV_USE_KQUEUE |
928 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1117 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
935 | #endif |
1124 | #endif |
936 | #if EV_USE_SELECT |
1125 | #if EV_USE_SELECT |
937 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1126 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
938 | #endif |
1127 | #endif |
939 | |
1128 | |
940 | ev_init (&sigev, sigcb); |
1129 | ev_init (&pipeev, pipecb); |
941 | ev_set_priority (&sigev, EV_MAXPRI); |
1130 | ev_set_priority (&pipeev, EV_MAXPRI); |
942 | } |
1131 | } |
943 | } |
1132 | } |
944 | |
1133 | |
945 | static void noinline |
1134 | static void noinline |
946 | loop_destroy (EV_P) |
1135 | loop_destroy (EV_P) |
947 | { |
1136 | { |
948 | int i; |
1137 | int i; |
|
|
1138 | |
|
|
1139 | if (ev_is_active (&pipeev)) |
|
|
1140 | { |
|
|
1141 | ev_ref (EV_A); /* signal watcher */ |
|
|
1142 | ev_io_stop (EV_A_ &pipeev); |
|
|
1143 | |
|
|
1144 | close (evpipe [0]); evpipe [0] = 0; |
|
|
1145 | close (evpipe [1]); evpipe [1] = 0; |
|
|
1146 | } |
949 | |
1147 | |
950 | #if EV_USE_INOTIFY |
1148 | #if EV_USE_INOTIFY |
951 | if (fs_fd >= 0) |
1149 | if (fs_fd >= 0) |
952 | close (fs_fd); |
1150 | close (fs_fd); |
953 | #endif |
1151 | #endif |
… | |
… | |
970 | #if EV_USE_SELECT |
1168 | #if EV_USE_SELECT |
971 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1169 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
972 | #endif |
1170 | #endif |
973 | |
1171 | |
974 | for (i = NUMPRI; i--; ) |
1172 | for (i = NUMPRI; i--; ) |
|
|
1173 | { |
975 | array_free (pending, [i]); |
1174 | array_free (pending, [i]); |
|
|
1175 | #if EV_IDLE_ENABLE |
|
|
1176 | array_free (idle, [i]); |
|
|
1177 | #endif |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | ev_free (anfds); anfdmax = 0; |
976 | |
1181 | |
977 | /* have to use the microsoft-never-gets-it-right macro */ |
1182 | /* have to use the microsoft-never-gets-it-right macro */ |
978 | array_free (fdchange, EMPTY0); |
1183 | array_free (fdchange, EMPTY); |
979 | array_free (timer, EMPTY0); |
1184 | array_free (timer, EMPTY); |
980 | #if EV_PERIODIC_ENABLE |
1185 | #if EV_PERIODIC_ENABLE |
981 | array_free (periodic, EMPTY0); |
1186 | array_free (periodic, EMPTY); |
982 | #endif |
1187 | #endif |
|
|
1188 | #if EV_FORK_ENABLE |
983 | array_free (idle, EMPTY0); |
1189 | array_free (fork, EMPTY); |
|
|
1190 | #endif |
984 | array_free (prepare, EMPTY0); |
1191 | array_free (prepare, EMPTY); |
985 | array_free (check, EMPTY0); |
1192 | array_free (check, EMPTY); |
|
|
1193 | #if EV_ASYNC_ENABLE |
|
|
1194 | array_free (async, EMPTY); |
|
|
1195 | #endif |
986 | |
1196 | |
987 | backend = 0; |
1197 | backend = 0; |
988 | } |
1198 | } |
989 | |
1199 | |
990 | void inline_size infy_fork (EV_P); |
1200 | void inline_size infy_fork (EV_P); |
… | |
… | |
1003 | #endif |
1213 | #endif |
1004 | #if EV_USE_INOTIFY |
1214 | #if EV_USE_INOTIFY |
1005 | infy_fork (EV_A); |
1215 | infy_fork (EV_A); |
1006 | #endif |
1216 | #endif |
1007 | |
1217 | |
1008 | if (ev_is_active (&sigev)) |
1218 | if (ev_is_active (&pipeev)) |
1009 | { |
1219 | { |
1010 | /* default loop */ |
1220 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1221 | /* while we modify the fd vars */ |
|
|
1222 | gotsig = 1; |
|
|
1223 | #if EV_ASYNC_ENABLE |
|
|
1224 | gotasync = 1; |
|
|
1225 | #endif |
1011 | |
1226 | |
1012 | ev_ref (EV_A); |
1227 | ev_ref (EV_A); |
1013 | ev_io_stop (EV_A_ &sigev); |
1228 | ev_io_stop (EV_A_ &pipeev); |
1014 | close (sigpipe [0]); |
1229 | close (evpipe [0]); |
1015 | close (sigpipe [1]); |
1230 | close (evpipe [1]); |
1016 | |
1231 | |
1017 | while (pipe (sigpipe)) |
|
|
1018 | syserr ("(libev) error creating pipe"); |
|
|
1019 | |
|
|
1020 | siginit (EV_A); |
1232 | evpipe_init (EV_A); |
|
|
1233 | /* now iterate over everything, in case we missed something */ |
|
|
1234 | pipecb (EV_A_ &pipeev, EV_READ); |
1021 | } |
1235 | } |
1022 | |
1236 | |
1023 | postfork = 0; |
1237 | postfork = 0; |
1024 | } |
1238 | } |
1025 | |
1239 | |
… | |
… | |
1047 | } |
1261 | } |
1048 | |
1262 | |
1049 | void |
1263 | void |
1050 | ev_loop_fork (EV_P) |
1264 | ev_loop_fork (EV_P) |
1051 | { |
1265 | { |
1052 | postfork = 1; |
1266 | postfork = 1; /* must be in line with ev_default_fork */ |
1053 | } |
1267 | } |
1054 | |
1268 | |
1055 | #endif |
1269 | #endif |
1056 | |
1270 | |
1057 | #if EV_MULTIPLICITY |
1271 | #if EV_MULTIPLICITY |
… | |
… | |
1060 | #else |
1274 | #else |
1061 | int |
1275 | int |
1062 | ev_default_loop (unsigned int flags) |
1276 | ev_default_loop (unsigned int flags) |
1063 | #endif |
1277 | #endif |
1064 | { |
1278 | { |
1065 | if (sigpipe [0] == sigpipe [1]) |
|
|
1066 | if (pipe (sigpipe)) |
|
|
1067 | return 0; |
|
|
1068 | |
|
|
1069 | if (!ev_default_loop_ptr) |
1279 | if (!ev_default_loop_ptr) |
1070 | { |
1280 | { |
1071 | #if EV_MULTIPLICITY |
1281 | #if EV_MULTIPLICITY |
1072 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1282 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1073 | #else |
1283 | #else |
… | |
… | |
1076 | |
1286 | |
1077 | loop_init (EV_A_ flags); |
1287 | loop_init (EV_A_ flags); |
1078 | |
1288 | |
1079 | if (ev_backend (EV_A)) |
1289 | if (ev_backend (EV_A)) |
1080 | { |
1290 | { |
1081 | siginit (EV_A); |
|
|
1082 | |
|
|
1083 | #ifndef _WIN32 |
1291 | #ifndef _WIN32 |
1084 | ev_signal_init (&childev, childcb, SIGCHLD); |
1292 | ev_signal_init (&childev, childcb, SIGCHLD); |
1085 | ev_set_priority (&childev, EV_MAXPRI); |
1293 | ev_set_priority (&childev, EV_MAXPRI); |
1086 | ev_signal_start (EV_A_ &childev); |
1294 | ev_signal_start (EV_A_ &childev); |
1087 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1295 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1104 | #ifndef _WIN32 |
1312 | #ifndef _WIN32 |
1105 | ev_ref (EV_A); /* child watcher */ |
1313 | ev_ref (EV_A); /* child watcher */ |
1106 | ev_signal_stop (EV_A_ &childev); |
1314 | ev_signal_stop (EV_A_ &childev); |
1107 | #endif |
1315 | #endif |
1108 | |
1316 | |
1109 | ev_ref (EV_A); /* signal watcher */ |
|
|
1110 | ev_io_stop (EV_A_ &sigev); |
|
|
1111 | |
|
|
1112 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1113 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1114 | |
|
|
1115 | loop_destroy (EV_A); |
1317 | loop_destroy (EV_A); |
1116 | } |
1318 | } |
1117 | |
1319 | |
1118 | void |
1320 | void |
1119 | ev_default_fork (void) |
1321 | ev_default_fork (void) |
… | |
… | |
1121 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
1122 | struct ev_loop *loop = ev_default_loop_ptr; |
1324 | struct ev_loop *loop = ev_default_loop_ptr; |
1123 | #endif |
1325 | #endif |
1124 | |
1326 | |
1125 | if (backend) |
1327 | if (backend) |
1126 | postfork = 1; |
1328 | postfork = 1; /* must be in line with ev_loop_fork */ |
1127 | } |
1329 | } |
1128 | |
1330 | |
1129 | /*****************************************************************************/ |
1331 | /*****************************************************************************/ |
1130 | |
1332 | |
1131 | int inline_size |
1333 | void |
1132 | any_pending (EV_P) |
1334 | ev_invoke (EV_P_ void *w, int revents) |
1133 | { |
1335 | { |
1134 | int pri; |
1336 | EV_CB_INVOKE ((W)w, revents); |
1135 | |
|
|
1136 | for (pri = NUMPRI; pri--; ) |
|
|
1137 | if (pendingcnt [pri]) |
|
|
1138 | return 1; |
|
|
1139 | |
|
|
1140 | return 0; |
|
|
1141 | } |
1337 | } |
1142 | |
1338 | |
1143 | void inline_speed |
1339 | void inline_speed |
1144 | call_pending (EV_P) |
1340 | call_pending (EV_P) |
1145 | { |
1341 | { |
… | |
… | |
1163 | void inline_size |
1359 | void inline_size |
1164 | timers_reify (EV_P) |
1360 | timers_reify (EV_P) |
1165 | { |
1361 | { |
1166 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1362 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1167 | { |
1363 | { |
1168 | ev_timer *w = timers [0]; |
1364 | ev_timer *w = (ev_timer *)timers [0]; |
1169 | |
1365 | |
1170 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1366 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1171 | |
1367 | |
1172 | /* first reschedule or stop timer */ |
1368 | /* first reschedule or stop timer */ |
1173 | if (w->repeat) |
1369 | if (w->repeat) |
… | |
… | |
1176 | |
1372 | |
1177 | ((WT)w)->at += w->repeat; |
1373 | ((WT)w)->at += w->repeat; |
1178 | if (((WT)w)->at < mn_now) |
1374 | if (((WT)w)->at < mn_now) |
1179 | ((WT)w)->at = mn_now; |
1375 | ((WT)w)->at = mn_now; |
1180 | |
1376 | |
1181 | downheap ((WT *)timers, timercnt, 0); |
1377 | downheap (timers, timercnt, 0); |
1182 | } |
1378 | } |
1183 | else |
1379 | else |
1184 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1380 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1185 | |
1381 | |
1186 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1382 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
… | |
… | |
1191 | void inline_size |
1387 | void inline_size |
1192 | periodics_reify (EV_P) |
1388 | periodics_reify (EV_P) |
1193 | { |
1389 | { |
1194 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1390 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1195 | { |
1391 | { |
1196 | ev_periodic *w = periodics [0]; |
1392 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1197 | |
1393 | |
1198 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1394 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1199 | |
1395 | |
1200 | /* first reschedule or stop timer */ |
1396 | /* first reschedule or stop timer */ |
1201 | if (w->reschedule_cb) |
1397 | if (w->reschedule_cb) |
1202 | { |
1398 | { |
1203 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1399 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1204 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1400 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1205 | downheap ((WT *)periodics, periodiccnt, 0); |
1401 | downheap (periodics, periodiccnt, 0); |
1206 | } |
1402 | } |
1207 | else if (w->interval) |
1403 | else if (w->interval) |
1208 | { |
1404 | { |
1209 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1405 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1406 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1210 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1407 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1211 | downheap ((WT *)periodics, periodiccnt, 0); |
1408 | downheap (periodics, periodiccnt, 0); |
1212 | } |
1409 | } |
1213 | else |
1410 | else |
1214 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1411 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1215 | |
1412 | |
1216 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1413 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
… | |
… | |
1223 | int i; |
1420 | int i; |
1224 | |
1421 | |
1225 | /* adjust periodics after time jump */ |
1422 | /* adjust periodics after time jump */ |
1226 | for (i = 0; i < periodiccnt; ++i) |
1423 | for (i = 0; i < periodiccnt; ++i) |
1227 | { |
1424 | { |
1228 | ev_periodic *w = periodics [i]; |
1425 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1229 | |
1426 | |
1230 | if (w->reschedule_cb) |
1427 | if (w->reschedule_cb) |
1231 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1428 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1232 | else if (w->interval) |
1429 | else if (w->interval) |
1233 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1430 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1234 | } |
1431 | } |
1235 | |
1432 | |
1236 | /* now rebuild the heap */ |
1433 | /* now rebuild the heap */ |
1237 | for (i = periodiccnt >> 1; i--; ) |
1434 | for (i = periodiccnt >> 1; i--; ) |
1238 | downheap ((WT *)periodics, periodiccnt, i); |
1435 | downheap (periodics, periodiccnt, i); |
1239 | } |
1436 | } |
1240 | #endif |
1437 | #endif |
1241 | |
1438 | |
|
|
1439 | #if EV_IDLE_ENABLE |
1242 | int inline_size |
1440 | void inline_size |
1243 | time_update_monotonic (EV_P) |
1441 | idle_reify (EV_P) |
1244 | { |
1442 | { |
|
|
1443 | if (expect_false (idleall)) |
|
|
1444 | { |
|
|
1445 | int pri; |
|
|
1446 | |
|
|
1447 | for (pri = NUMPRI; pri--; ) |
|
|
1448 | { |
|
|
1449 | if (pendingcnt [pri]) |
|
|
1450 | break; |
|
|
1451 | |
|
|
1452 | if (idlecnt [pri]) |
|
|
1453 | { |
|
|
1454 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1455 | break; |
|
|
1456 | } |
|
|
1457 | } |
|
|
1458 | } |
|
|
1459 | } |
|
|
1460 | #endif |
|
|
1461 | |
|
|
1462 | void inline_speed |
|
|
1463 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1464 | { |
|
|
1465 | int i; |
|
|
1466 | |
|
|
1467 | #if EV_USE_MONOTONIC |
|
|
1468 | if (expect_true (have_monotonic)) |
|
|
1469 | { |
|
|
1470 | ev_tstamp odiff = rtmn_diff; |
|
|
1471 | |
1245 | mn_now = get_clock (); |
1472 | mn_now = get_clock (); |
1246 | |
1473 | |
|
|
1474 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1475 | /* interpolate in the meantime */ |
1247 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1476 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1248 | { |
1477 | { |
1249 | ev_rt_now = rtmn_diff + mn_now; |
1478 | ev_rt_now = rtmn_diff + mn_now; |
1250 | return 0; |
1479 | return; |
1251 | } |
1480 | } |
1252 | else |
1481 | |
1253 | { |
|
|
1254 | now_floor = mn_now; |
1482 | now_floor = mn_now; |
1255 | ev_rt_now = ev_time (); |
1483 | ev_rt_now = ev_time (); |
1256 | return 1; |
|
|
1257 | } |
|
|
1258 | } |
|
|
1259 | |
1484 | |
1260 | void inline_size |
1485 | /* loop a few times, before making important decisions. |
1261 | time_update (EV_P) |
1486 | * on the choice of "4": one iteration isn't enough, |
1262 | { |
1487 | * in case we get preempted during the calls to |
1263 | int i; |
1488 | * ev_time and get_clock. a second call is almost guaranteed |
1264 | |
1489 | * to succeed in that case, though. and looping a few more times |
1265 | #if EV_USE_MONOTONIC |
1490 | * doesn't hurt either as we only do this on time-jumps or |
1266 | if (expect_true (have_monotonic)) |
1491 | * in the unlikely event of having been preempted here. |
1267 | { |
1492 | */ |
1268 | if (time_update_monotonic (EV_A)) |
1493 | for (i = 4; --i; ) |
1269 | { |
1494 | { |
1270 | ev_tstamp odiff = rtmn_diff; |
|
|
1271 | |
|
|
1272 | /* loop a few times, before making important decisions. |
|
|
1273 | * on the choice of "4": one iteration isn't enough, |
|
|
1274 | * in case we get preempted during the calls to |
|
|
1275 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1276 | * to succeed in that case, though. and looping a few more times |
|
|
1277 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1278 | * in the unlikely event of getting preempted here. |
|
|
1279 | */ |
|
|
1280 | for (i = 4; --i; ) |
|
|
1281 | { |
|
|
1282 | rtmn_diff = ev_rt_now - mn_now; |
1495 | rtmn_diff = ev_rt_now - mn_now; |
1283 | |
1496 | |
1284 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1497 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1285 | return; /* all is well */ |
1498 | return; /* all is well */ |
1286 | |
1499 | |
1287 | ev_rt_now = ev_time (); |
1500 | ev_rt_now = ev_time (); |
1288 | mn_now = get_clock (); |
1501 | mn_now = get_clock (); |
1289 | now_floor = mn_now; |
1502 | now_floor = mn_now; |
1290 | } |
1503 | } |
1291 | |
1504 | |
1292 | # if EV_PERIODIC_ENABLE |
1505 | # if EV_PERIODIC_ENABLE |
1293 | periodics_reschedule (EV_A); |
1506 | periodics_reschedule (EV_A); |
1294 | # endif |
1507 | # endif |
1295 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1508 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1296 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1509 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1297 | } |
|
|
1298 | } |
1510 | } |
1299 | else |
1511 | else |
1300 | #endif |
1512 | #endif |
1301 | { |
1513 | { |
1302 | ev_rt_now = ev_time (); |
1514 | ev_rt_now = ev_time (); |
1303 | |
1515 | |
1304 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1516 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1305 | { |
1517 | { |
1306 | #if EV_PERIODIC_ENABLE |
1518 | #if EV_PERIODIC_ENABLE |
1307 | periodics_reschedule (EV_A); |
1519 | periodics_reschedule (EV_A); |
1308 | #endif |
1520 | #endif |
1309 | |
|
|
1310 | /* adjust timers. this is easy, as the offset is the same for all */ |
1521 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1311 | for (i = 0; i < timercnt; ++i) |
1522 | for (i = 0; i < timercnt; ++i) |
1312 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1523 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1313 | } |
1524 | } |
1314 | |
1525 | |
1315 | mn_now = ev_rt_now; |
1526 | mn_now = ev_rt_now; |
… | |
… | |
1335 | { |
1546 | { |
1336 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1547 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1337 | ? EVUNLOOP_ONE |
1548 | ? EVUNLOOP_ONE |
1338 | : EVUNLOOP_CANCEL; |
1549 | : EVUNLOOP_CANCEL; |
1339 | |
1550 | |
1340 | while (activecnt) |
1551 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1552 | |
|
|
1553 | do |
1341 | { |
1554 | { |
1342 | /* we might have forked, so reify kernel state if necessary */ |
1555 | #ifndef _WIN32 |
|
|
1556 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1557 | if (expect_false (getpid () != curpid)) |
|
|
1558 | { |
|
|
1559 | curpid = getpid (); |
|
|
1560 | postfork = 1; |
|
|
1561 | } |
|
|
1562 | #endif |
|
|
1563 | |
1343 | #if EV_FORK_ENABLE |
1564 | #if EV_FORK_ENABLE |
|
|
1565 | /* we might have forked, so queue fork handlers */ |
1344 | if (expect_false (postfork)) |
1566 | if (expect_false (postfork)) |
1345 | if (forkcnt) |
1567 | if (forkcnt) |
1346 | { |
1568 | { |
1347 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1569 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1348 | call_pending (EV_A); |
1570 | call_pending (EV_A); |
1349 | } |
1571 | } |
1350 | #endif |
1572 | #endif |
1351 | |
1573 | |
1352 | /* queue check watchers (and execute them) */ |
1574 | /* queue prepare watchers (and execute them) */ |
1353 | if (expect_false (preparecnt)) |
1575 | if (expect_false (preparecnt)) |
1354 | { |
1576 | { |
1355 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1577 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1356 | call_pending (EV_A); |
1578 | call_pending (EV_A); |
1357 | } |
1579 | } |
1358 | |
1580 | |
|
|
1581 | if (expect_false (!activecnt)) |
|
|
1582 | break; |
|
|
1583 | |
1359 | /* we might have forked, so reify kernel state if necessary */ |
1584 | /* we might have forked, so reify kernel state if necessary */ |
1360 | if (expect_false (postfork)) |
1585 | if (expect_false (postfork)) |
1361 | loop_fork (EV_A); |
1586 | loop_fork (EV_A); |
1362 | |
1587 | |
1363 | /* update fd-related kernel structures */ |
1588 | /* update fd-related kernel structures */ |
1364 | fd_reify (EV_A); |
1589 | fd_reify (EV_A); |
1365 | |
1590 | |
1366 | /* calculate blocking time */ |
1591 | /* calculate blocking time */ |
1367 | { |
1592 | { |
1368 | double block; |
1593 | ev_tstamp waittime = 0.; |
|
|
1594 | ev_tstamp sleeptime = 0.; |
1369 | |
1595 | |
1370 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1596 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1371 | block = 0.; /* do not block at all */ |
|
|
1372 | else |
|
|
1373 | { |
1597 | { |
1374 | /* update time to cancel out callback processing overhead */ |
1598 | /* update time to cancel out callback processing overhead */ |
1375 | #if EV_USE_MONOTONIC |
|
|
1376 | if (expect_true (have_monotonic)) |
|
|
1377 | time_update_monotonic (EV_A); |
1599 | time_update (EV_A_ 1e100); |
1378 | else |
|
|
1379 | #endif |
|
|
1380 | { |
|
|
1381 | ev_rt_now = ev_time (); |
|
|
1382 | mn_now = ev_rt_now; |
|
|
1383 | } |
|
|
1384 | |
1600 | |
1385 | block = MAX_BLOCKTIME; |
1601 | waittime = MAX_BLOCKTIME; |
1386 | |
1602 | |
1387 | if (timercnt) |
1603 | if (timercnt) |
1388 | { |
1604 | { |
1389 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1605 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1390 | if (block > to) block = to; |
1606 | if (waittime > to) waittime = to; |
1391 | } |
1607 | } |
1392 | |
1608 | |
1393 | #if EV_PERIODIC_ENABLE |
1609 | #if EV_PERIODIC_ENABLE |
1394 | if (periodiccnt) |
1610 | if (periodiccnt) |
1395 | { |
1611 | { |
1396 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1612 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1397 | if (block > to) block = to; |
1613 | if (waittime > to) waittime = to; |
1398 | } |
1614 | } |
1399 | #endif |
1615 | #endif |
1400 | |
1616 | |
1401 | if (expect_false (block < 0.)) block = 0.; |
1617 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1618 | waittime = timeout_blocktime; |
|
|
1619 | |
|
|
1620 | sleeptime = waittime - backend_fudge; |
|
|
1621 | |
|
|
1622 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1623 | sleeptime = io_blocktime; |
|
|
1624 | |
|
|
1625 | if (sleeptime) |
|
|
1626 | { |
|
|
1627 | ev_sleep (sleeptime); |
|
|
1628 | waittime -= sleeptime; |
|
|
1629 | } |
1402 | } |
1630 | } |
1403 | |
1631 | |
|
|
1632 | ++loop_count; |
1404 | backend_poll (EV_A_ block); |
1633 | backend_poll (EV_A_ waittime); |
|
|
1634 | |
|
|
1635 | /* update ev_rt_now, do magic */ |
|
|
1636 | time_update (EV_A_ waittime + sleeptime); |
1405 | } |
1637 | } |
1406 | |
|
|
1407 | /* update ev_rt_now, do magic */ |
|
|
1408 | time_update (EV_A); |
|
|
1409 | |
1638 | |
1410 | /* queue pending timers and reschedule them */ |
1639 | /* queue pending timers and reschedule them */ |
1411 | timers_reify (EV_A); /* relative timers called last */ |
1640 | timers_reify (EV_A); /* relative timers called last */ |
1412 | #if EV_PERIODIC_ENABLE |
1641 | #if EV_PERIODIC_ENABLE |
1413 | periodics_reify (EV_A); /* absolute timers called first */ |
1642 | periodics_reify (EV_A); /* absolute timers called first */ |
1414 | #endif |
1643 | #endif |
1415 | |
1644 | |
|
|
1645 | #if EV_IDLE_ENABLE |
1416 | /* queue idle watchers unless other events are pending */ |
1646 | /* queue idle watchers unless other events are pending */ |
1417 | if (idlecnt && !any_pending (EV_A)) |
1647 | idle_reify (EV_A); |
1418 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1648 | #endif |
1419 | |
1649 | |
1420 | /* queue check watchers, to be executed first */ |
1650 | /* queue check watchers, to be executed first */ |
1421 | if (expect_false (checkcnt)) |
1651 | if (expect_false (checkcnt)) |
1422 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1652 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1423 | |
1653 | |
1424 | call_pending (EV_A); |
1654 | call_pending (EV_A); |
1425 | |
1655 | |
1426 | if (expect_false (loop_done)) |
|
|
1427 | break; |
|
|
1428 | } |
1656 | } |
|
|
1657 | while (expect_true (activecnt && !loop_done)); |
1429 | |
1658 | |
1430 | if (loop_done == EVUNLOOP_ONE) |
1659 | if (loop_done == EVUNLOOP_ONE) |
1431 | loop_done = EVUNLOOP_CANCEL; |
1660 | loop_done = EVUNLOOP_CANCEL; |
1432 | } |
1661 | } |
1433 | |
1662 | |
… | |
… | |
1460 | head = &(*head)->next; |
1689 | head = &(*head)->next; |
1461 | } |
1690 | } |
1462 | } |
1691 | } |
1463 | |
1692 | |
1464 | void inline_speed |
1693 | void inline_speed |
1465 | ev_clear_pending (EV_P_ W w) |
1694 | clear_pending (EV_P_ W w) |
1466 | { |
1695 | { |
1467 | if (w->pending) |
1696 | if (w->pending) |
1468 | { |
1697 | { |
1469 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1698 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1470 | w->pending = 0; |
1699 | w->pending = 0; |
1471 | } |
1700 | } |
1472 | } |
1701 | } |
1473 | |
1702 | |
|
|
1703 | int |
|
|
1704 | ev_clear_pending (EV_P_ void *w) |
|
|
1705 | { |
|
|
1706 | W w_ = (W)w; |
|
|
1707 | int pending = w_->pending; |
|
|
1708 | |
|
|
1709 | if (expect_true (pending)) |
|
|
1710 | { |
|
|
1711 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1712 | w_->pending = 0; |
|
|
1713 | p->w = 0; |
|
|
1714 | return p->events; |
|
|
1715 | } |
|
|
1716 | else |
|
|
1717 | return 0; |
|
|
1718 | } |
|
|
1719 | |
|
|
1720 | void inline_size |
|
|
1721 | pri_adjust (EV_P_ W w) |
|
|
1722 | { |
|
|
1723 | int pri = w->priority; |
|
|
1724 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1725 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1726 | w->priority = pri; |
|
|
1727 | } |
|
|
1728 | |
1474 | void inline_speed |
1729 | void inline_speed |
1475 | ev_start (EV_P_ W w, int active) |
1730 | ev_start (EV_P_ W w, int active) |
1476 | { |
1731 | { |
1477 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1732 | pri_adjust (EV_A_ w); |
1478 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1479 | |
|
|
1480 | w->active = active; |
1733 | w->active = active; |
1481 | ev_ref (EV_A); |
1734 | ev_ref (EV_A); |
1482 | } |
1735 | } |
1483 | |
1736 | |
1484 | void inline_size |
1737 | void inline_size |
… | |
… | |
1488 | w->active = 0; |
1741 | w->active = 0; |
1489 | } |
1742 | } |
1490 | |
1743 | |
1491 | /*****************************************************************************/ |
1744 | /*****************************************************************************/ |
1492 | |
1745 | |
1493 | void |
1746 | void noinline |
1494 | ev_io_start (EV_P_ ev_io *w) |
1747 | ev_io_start (EV_P_ ev_io *w) |
1495 | { |
1748 | { |
1496 | int fd = w->fd; |
1749 | int fd = w->fd; |
1497 | |
1750 | |
1498 | if (expect_false (ev_is_active (w))) |
1751 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1500 | |
1753 | |
1501 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1754 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1502 | |
1755 | |
1503 | ev_start (EV_A_ (W)w, 1); |
1756 | ev_start (EV_A_ (W)w, 1); |
1504 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1757 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1505 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1758 | wlist_add (&anfds[fd].head, (WL)w); |
1506 | |
1759 | |
1507 | fd_change (EV_A_ fd); |
1760 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1761 | w->events &= ~EV_IOFDSET; |
1508 | } |
1762 | } |
1509 | |
1763 | |
1510 | void |
1764 | void noinline |
1511 | ev_io_stop (EV_P_ ev_io *w) |
1765 | ev_io_stop (EV_P_ ev_io *w) |
1512 | { |
1766 | { |
1513 | ev_clear_pending (EV_A_ (W)w); |
1767 | clear_pending (EV_A_ (W)w); |
1514 | if (expect_false (!ev_is_active (w))) |
1768 | if (expect_false (!ev_is_active (w))) |
1515 | return; |
1769 | return; |
1516 | |
1770 | |
1517 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1771 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1518 | |
1772 | |
1519 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1773 | wlist_del (&anfds[w->fd].head, (WL)w); |
1520 | ev_stop (EV_A_ (W)w); |
1774 | ev_stop (EV_A_ (W)w); |
1521 | |
1775 | |
1522 | fd_change (EV_A_ w->fd); |
1776 | fd_change (EV_A_ w->fd, 1); |
1523 | } |
1777 | } |
1524 | |
1778 | |
1525 | void |
1779 | void noinline |
1526 | ev_timer_start (EV_P_ ev_timer *w) |
1780 | ev_timer_start (EV_P_ ev_timer *w) |
1527 | { |
1781 | { |
1528 | if (expect_false (ev_is_active (w))) |
1782 | if (expect_false (ev_is_active (w))) |
1529 | return; |
1783 | return; |
1530 | |
1784 | |
1531 | ((WT)w)->at += mn_now; |
1785 | ((WT)w)->at += mn_now; |
1532 | |
1786 | |
1533 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1787 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1534 | |
1788 | |
1535 | ev_start (EV_A_ (W)w, ++timercnt); |
1789 | ev_start (EV_A_ (W)w, ++timercnt); |
1536 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1790 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1537 | timers [timercnt - 1] = w; |
1791 | timers [timercnt - 1] = (WT)w; |
1538 | upheap ((WT *)timers, timercnt - 1); |
1792 | upheap (timers, timercnt - 1); |
1539 | |
1793 | |
1540 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1794 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1541 | } |
1795 | } |
1542 | |
1796 | |
1543 | void |
1797 | void noinline |
1544 | ev_timer_stop (EV_P_ ev_timer *w) |
1798 | ev_timer_stop (EV_P_ ev_timer *w) |
1545 | { |
1799 | { |
1546 | ev_clear_pending (EV_A_ (W)w); |
1800 | clear_pending (EV_A_ (W)w); |
1547 | if (expect_false (!ev_is_active (w))) |
1801 | if (expect_false (!ev_is_active (w))) |
1548 | return; |
1802 | return; |
1549 | |
1803 | |
1550 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1804 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1551 | |
1805 | |
1552 | { |
1806 | { |
1553 | int active = ((W)w)->active; |
1807 | int active = ((W)w)->active; |
1554 | |
1808 | |
1555 | if (expect_true (--active < --timercnt)) |
1809 | if (expect_true (--active < --timercnt)) |
1556 | { |
1810 | { |
1557 | timers [active] = timers [timercnt]; |
1811 | timers [active] = timers [timercnt]; |
1558 | adjustheap ((WT *)timers, timercnt, active); |
1812 | adjustheap (timers, timercnt, active); |
1559 | } |
1813 | } |
1560 | } |
1814 | } |
1561 | |
1815 | |
1562 | ((WT)w)->at -= mn_now; |
1816 | ((WT)w)->at -= mn_now; |
1563 | |
1817 | |
1564 | ev_stop (EV_A_ (W)w); |
1818 | ev_stop (EV_A_ (W)w); |
1565 | } |
1819 | } |
1566 | |
1820 | |
1567 | void |
1821 | void noinline |
1568 | ev_timer_again (EV_P_ ev_timer *w) |
1822 | ev_timer_again (EV_P_ ev_timer *w) |
1569 | { |
1823 | { |
1570 | if (ev_is_active (w)) |
1824 | if (ev_is_active (w)) |
1571 | { |
1825 | { |
1572 | if (w->repeat) |
1826 | if (w->repeat) |
1573 | { |
1827 | { |
1574 | ((WT)w)->at = mn_now + w->repeat; |
1828 | ((WT)w)->at = mn_now + w->repeat; |
1575 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1829 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1576 | } |
1830 | } |
1577 | else |
1831 | else |
1578 | ev_timer_stop (EV_A_ w); |
1832 | ev_timer_stop (EV_A_ w); |
1579 | } |
1833 | } |
1580 | else if (w->repeat) |
1834 | else if (w->repeat) |
… | |
… | |
1583 | ev_timer_start (EV_A_ w); |
1837 | ev_timer_start (EV_A_ w); |
1584 | } |
1838 | } |
1585 | } |
1839 | } |
1586 | |
1840 | |
1587 | #if EV_PERIODIC_ENABLE |
1841 | #if EV_PERIODIC_ENABLE |
1588 | void |
1842 | void noinline |
1589 | ev_periodic_start (EV_P_ ev_periodic *w) |
1843 | ev_periodic_start (EV_P_ ev_periodic *w) |
1590 | { |
1844 | { |
1591 | if (expect_false (ev_is_active (w))) |
1845 | if (expect_false (ev_is_active (w))) |
1592 | return; |
1846 | return; |
1593 | |
1847 | |
… | |
… | |
1595 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1849 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1596 | else if (w->interval) |
1850 | else if (w->interval) |
1597 | { |
1851 | { |
1598 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1852 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1599 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1853 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1600 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1854 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1601 | } |
1855 | } |
|
|
1856 | else |
|
|
1857 | ((WT)w)->at = w->offset; |
1602 | |
1858 | |
1603 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1859 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1604 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1860 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1605 | periodics [periodiccnt - 1] = w; |
1861 | periodics [periodiccnt - 1] = (WT)w; |
1606 | upheap ((WT *)periodics, periodiccnt - 1); |
1862 | upheap (periodics, periodiccnt - 1); |
1607 | |
1863 | |
1608 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1864 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1609 | } |
1865 | } |
1610 | |
1866 | |
1611 | void |
1867 | void noinline |
1612 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1868 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1613 | { |
1869 | { |
1614 | ev_clear_pending (EV_A_ (W)w); |
1870 | clear_pending (EV_A_ (W)w); |
1615 | if (expect_false (!ev_is_active (w))) |
1871 | if (expect_false (!ev_is_active (w))) |
1616 | return; |
1872 | return; |
1617 | |
1873 | |
1618 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1874 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1619 | |
1875 | |
1620 | { |
1876 | { |
1621 | int active = ((W)w)->active; |
1877 | int active = ((W)w)->active; |
1622 | |
1878 | |
1623 | if (expect_true (--active < --periodiccnt)) |
1879 | if (expect_true (--active < --periodiccnt)) |
1624 | { |
1880 | { |
1625 | periodics [active] = periodics [periodiccnt]; |
1881 | periodics [active] = periodics [periodiccnt]; |
1626 | adjustheap ((WT *)periodics, periodiccnt, active); |
1882 | adjustheap (periodics, periodiccnt, active); |
1627 | } |
1883 | } |
1628 | } |
1884 | } |
1629 | |
1885 | |
1630 | ev_stop (EV_A_ (W)w); |
1886 | ev_stop (EV_A_ (W)w); |
1631 | } |
1887 | } |
1632 | |
1888 | |
1633 | void |
1889 | void noinline |
1634 | ev_periodic_again (EV_P_ ev_periodic *w) |
1890 | ev_periodic_again (EV_P_ ev_periodic *w) |
1635 | { |
1891 | { |
1636 | /* TODO: use adjustheap and recalculation */ |
1892 | /* TODO: use adjustheap and recalculation */ |
1637 | ev_periodic_stop (EV_A_ w); |
1893 | ev_periodic_stop (EV_A_ w); |
1638 | ev_periodic_start (EV_A_ w); |
1894 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1641 | |
1897 | |
1642 | #ifndef SA_RESTART |
1898 | #ifndef SA_RESTART |
1643 | # define SA_RESTART 0 |
1899 | # define SA_RESTART 0 |
1644 | #endif |
1900 | #endif |
1645 | |
1901 | |
1646 | void |
1902 | void noinline |
1647 | ev_signal_start (EV_P_ ev_signal *w) |
1903 | ev_signal_start (EV_P_ ev_signal *w) |
1648 | { |
1904 | { |
1649 | #if EV_MULTIPLICITY |
1905 | #if EV_MULTIPLICITY |
1650 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1906 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1651 | #endif |
1907 | #endif |
1652 | if (expect_false (ev_is_active (w))) |
1908 | if (expect_false (ev_is_active (w))) |
1653 | return; |
1909 | return; |
1654 | |
1910 | |
1655 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1911 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1656 | |
1912 | |
|
|
1913 | evpipe_init (EV_A); |
|
|
1914 | |
|
|
1915 | { |
|
|
1916 | #ifndef _WIN32 |
|
|
1917 | sigset_t full, prev; |
|
|
1918 | sigfillset (&full); |
|
|
1919 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1920 | #endif |
|
|
1921 | |
|
|
1922 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1923 | |
|
|
1924 | #ifndef _WIN32 |
|
|
1925 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1926 | #endif |
|
|
1927 | } |
|
|
1928 | |
1657 | ev_start (EV_A_ (W)w, 1); |
1929 | ev_start (EV_A_ (W)w, 1); |
1658 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1659 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1930 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1660 | |
1931 | |
1661 | if (!((WL)w)->next) |
1932 | if (!((WL)w)->next) |
1662 | { |
1933 | { |
1663 | #if _WIN32 |
1934 | #if _WIN32 |
1664 | signal (w->signum, sighandler); |
1935 | signal (w->signum, sighandler); |
… | |
… | |
1670 | sigaction (w->signum, &sa, 0); |
1941 | sigaction (w->signum, &sa, 0); |
1671 | #endif |
1942 | #endif |
1672 | } |
1943 | } |
1673 | } |
1944 | } |
1674 | |
1945 | |
1675 | void |
1946 | void noinline |
1676 | ev_signal_stop (EV_P_ ev_signal *w) |
1947 | ev_signal_stop (EV_P_ ev_signal *w) |
1677 | { |
1948 | { |
1678 | ev_clear_pending (EV_A_ (W)w); |
1949 | clear_pending (EV_A_ (W)w); |
1679 | if (expect_false (!ev_is_active (w))) |
1950 | if (expect_false (!ev_is_active (w))) |
1680 | return; |
1951 | return; |
1681 | |
1952 | |
1682 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1953 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1683 | ev_stop (EV_A_ (W)w); |
1954 | ev_stop (EV_A_ (W)w); |
1684 | |
1955 | |
1685 | if (!signals [w->signum - 1].head) |
1956 | if (!signals [w->signum - 1].head) |
1686 | signal (w->signum, SIG_DFL); |
1957 | signal (w->signum, SIG_DFL); |
1687 | } |
1958 | } |
… | |
… | |
1694 | #endif |
1965 | #endif |
1695 | if (expect_false (ev_is_active (w))) |
1966 | if (expect_false (ev_is_active (w))) |
1696 | return; |
1967 | return; |
1697 | |
1968 | |
1698 | ev_start (EV_A_ (W)w, 1); |
1969 | ev_start (EV_A_ (W)w, 1); |
1699 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1970 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1700 | } |
1971 | } |
1701 | |
1972 | |
1702 | void |
1973 | void |
1703 | ev_child_stop (EV_P_ ev_child *w) |
1974 | ev_child_stop (EV_P_ ev_child *w) |
1704 | { |
1975 | { |
1705 | ev_clear_pending (EV_A_ (W)w); |
1976 | clear_pending (EV_A_ (W)w); |
1706 | if (expect_false (!ev_is_active (w))) |
1977 | if (expect_false (!ev_is_active (w))) |
1707 | return; |
1978 | return; |
1708 | |
1979 | |
1709 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1980 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1710 | ev_stop (EV_A_ (W)w); |
1981 | ev_stop (EV_A_ (W)w); |
1711 | } |
1982 | } |
1712 | |
1983 | |
1713 | #if EV_STAT_ENABLE |
1984 | #if EV_STAT_ENABLE |
1714 | |
1985 | |
… | |
… | |
1718 | # endif |
1989 | # endif |
1719 | |
1990 | |
1720 | #define DEF_STAT_INTERVAL 5.0074891 |
1991 | #define DEF_STAT_INTERVAL 5.0074891 |
1721 | #define MIN_STAT_INTERVAL 0.1074891 |
1992 | #define MIN_STAT_INTERVAL 0.1074891 |
1722 | |
1993 | |
1723 | void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1994 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1724 | |
1995 | |
1725 | #if EV_USE_INOTIFY |
1996 | #if EV_USE_INOTIFY |
1726 | # define EV_INOTIFY_BUFSIZE 8192 |
1997 | # define EV_INOTIFY_BUFSIZE 8192 |
1727 | |
1998 | |
1728 | static void noinline |
1999 | static void noinline |
… | |
… | |
1879 | w->attr.st_nlink = 0; |
2150 | w->attr.st_nlink = 0; |
1880 | else if (!w->attr.st_nlink) |
2151 | else if (!w->attr.st_nlink) |
1881 | w->attr.st_nlink = 1; |
2152 | w->attr.st_nlink = 1; |
1882 | } |
2153 | } |
1883 | |
2154 | |
1884 | void noinline |
2155 | static void noinline |
1885 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2156 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1886 | { |
2157 | { |
1887 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2158 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1888 | |
2159 | |
1889 | /* we copy this here each the time so that */ |
2160 | /* we copy this here each the time so that */ |
1890 | /* prev has the old value when the callback gets invoked */ |
2161 | /* prev has the old value when the callback gets invoked */ |
1891 | w->prev = w->attr; |
2162 | w->prev = w->attr; |
1892 | ev_stat_stat (EV_A_ w); |
2163 | ev_stat_stat (EV_A_ w); |
1893 | |
2164 | |
1894 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
2165 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2166 | if ( |
|
|
2167 | w->prev.st_dev != w->attr.st_dev |
|
|
2168 | || w->prev.st_ino != w->attr.st_ino |
|
|
2169 | || w->prev.st_mode != w->attr.st_mode |
|
|
2170 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2171 | || w->prev.st_uid != w->attr.st_uid |
|
|
2172 | || w->prev.st_gid != w->attr.st_gid |
|
|
2173 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2174 | || w->prev.st_size != w->attr.st_size |
|
|
2175 | || w->prev.st_atime != w->attr.st_atime |
|
|
2176 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2177 | || w->prev.st_ctime != w->attr.st_ctime |
1895 | { |
2178 | ) { |
1896 | #if EV_USE_INOTIFY |
2179 | #if EV_USE_INOTIFY |
1897 | infy_del (EV_A_ w); |
2180 | infy_del (EV_A_ w); |
1898 | infy_add (EV_A_ w); |
2181 | infy_add (EV_A_ w); |
1899 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2182 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
1900 | #endif |
2183 | #endif |
… | |
… | |
1934 | } |
2217 | } |
1935 | |
2218 | |
1936 | void |
2219 | void |
1937 | ev_stat_stop (EV_P_ ev_stat *w) |
2220 | ev_stat_stop (EV_P_ ev_stat *w) |
1938 | { |
2221 | { |
1939 | ev_clear_pending (EV_A_ (W)w); |
2222 | clear_pending (EV_A_ (W)w); |
1940 | if (expect_false (!ev_is_active (w))) |
2223 | if (expect_false (!ev_is_active (w))) |
1941 | return; |
2224 | return; |
1942 | |
2225 | |
1943 | #if EV_USE_INOTIFY |
2226 | #if EV_USE_INOTIFY |
1944 | infy_del (EV_A_ w); |
2227 | infy_del (EV_A_ w); |
… | |
… | |
1947 | |
2230 | |
1948 | ev_stop (EV_A_ (W)w); |
2231 | ev_stop (EV_A_ (W)w); |
1949 | } |
2232 | } |
1950 | #endif |
2233 | #endif |
1951 | |
2234 | |
|
|
2235 | #if EV_IDLE_ENABLE |
1952 | void |
2236 | void |
1953 | ev_idle_start (EV_P_ ev_idle *w) |
2237 | ev_idle_start (EV_P_ ev_idle *w) |
1954 | { |
2238 | { |
1955 | if (expect_false (ev_is_active (w))) |
2239 | if (expect_false (ev_is_active (w))) |
1956 | return; |
2240 | return; |
1957 | |
2241 | |
|
|
2242 | pri_adjust (EV_A_ (W)w); |
|
|
2243 | |
|
|
2244 | { |
|
|
2245 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2246 | |
|
|
2247 | ++idleall; |
1958 | ev_start (EV_A_ (W)w, ++idlecnt); |
2248 | ev_start (EV_A_ (W)w, active); |
|
|
2249 | |
1959 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2250 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1960 | idles [idlecnt - 1] = w; |
2251 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2252 | } |
1961 | } |
2253 | } |
1962 | |
2254 | |
1963 | void |
2255 | void |
1964 | ev_idle_stop (EV_P_ ev_idle *w) |
2256 | ev_idle_stop (EV_P_ ev_idle *w) |
1965 | { |
2257 | { |
1966 | ev_clear_pending (EV_A_ (W)w); |
2258 | clear_pending (EV_A_ (W)w); |
1967 | if (expect_false (!ev_is_active (w))) |
2259 | if (expect_false (!ev_is_active (w))) |
1968 | return; |
2260 | return; |
1969 | |
2261 | |
1970 | { |
2262 | { |
1971 | int active = ((W)w)->active; |
2263 | int active = ((W)w)->active; |
1972 | idles [active - 1] = idles [--idlecnt]; |
2264 | |
|
|
2265 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
1973 | ((W)idles [active - 1])->active = active; |
2266 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2267 | |
|
|
2268 | ev_stop (EV_A_ (W)w); |
|
|
2269 | --idleall; |
1974 | } |
2270 | } |
1975 | |
|
|
1976 | ev_stop (EV_A_ (W)w); |
|
|
1977 | } |
2271 | } |
|
|
2272 | #endif |
1978 | |
2273 | |
1979 | void |
2274 | void |
1980 | ev_prepare_start (EV_P_ ev_prepare *w) |
2275 | ev_prepare_start (EV_P_ ev_prepare *w) |
1981 | { |
2276 | { |
1982 | if (expect_false (ev_is_active (w))) |
2277 | if (expect_false (ev_is_active (w))) |
… | |
… | |
1988 | } |
2283 | } |
1989 | |
2284 | |
1990 | void |
2285 | void |
1991 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2286 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1992 | { |
2287 | { |
1993 | ev_clear_pending (EV_A_ (W)w); |
2288 | clear_pending (EV_A_ (W)w); |
1994 | if (expect_false (!ev_is_active (w))) |
2289 | if (expect_false (!ev_is_active (w))) |
1995 | return; |
2290 | return; |
1996 | |
2291 | |
1997 | { |
2292 | { |
1998 | int active = ((W)w)->active; |
2293 | int active = ((W)w)->active; |
… | |
… | |
2015 | } |
2310 | } |
2016 | |
2311 | |
2017 | void |
2312 | void |
2018 | ev_check_stop (EV_P_ ev_check *w) |
2313 | ev_check_stop (EV_P_ ev_check *w) |
2019 | { |
2314 | { |
2020 | ev_clear_pending (EV_A_ (W)w); |
2315 | clear_pending (EV_A_ (W)w); |
2021 | if (expect_false (!ev_is_active (w))) |
2316 | if (expect_false (!ev_is_active (w))) |
2022 | return; |
2317 | return; |
2023 | |
2318 | |
2024 | { |
2319 | { |
2025 | int active = ((W)w)->active; |
2320 | int active = ((W)w)->active; |
… | |
… | |
2032 | |
2327 | |
2033 | #if EV_EMBED_ENABLE |
2328 | #if EV_EMBED_ENABLE |
2034 | void noinline |
2329 | void noinline |
2035 | ev_embed_sweep (EV_P_ ev_embed *w) |
2330 | ev_embed_sweep (EV_P_ ev_embed *w) |
2036 | { |
2331 | { |
2037 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2332 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2038 | } |
2333 | } |
2039 | |
2334 | |
2040 | static void |
2335 | static void |
2041 | embed_cb (EV_P_ ev_io *io, int revents) |
2336 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2042 | { |
2337 | { |
2043 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2338 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2044 | |
2339 | |
2045 | if (ev_cb (w)) |
2340 | if (ev_cb (w)) |
2046 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2341 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2047 | else |
2342 | else |
2048 | ev_embed_sweep (loop, w); |
2343 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2049 | } |
2344 | } |
|
|
2345 | |
|
|
2346 | static void |
|
|
2347 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2348 | { |
|
|
2349 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2350 | |
|
|
2351 | { |
|
|
2352 | struct ev_loop *loop = w->other; |
|
|
2353 | |
|
|
2354 | while (fdchangecnt) |
|
|
2355 | { |
|
|
2356 | fd_reify (EV_A); |
|
|
2357 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2358 | } |
|
|
2359 | } |
|
|
2360 | } |
|
|
2361 | |
|
|
2362 | #if 0 |
|
|
2363 | static void |
|
|
2364 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2365 | { |
|
|
2366 | ev_idle_stop (EV_A_ idle); |
|
|
2367 | } |
|
|
2368 | #endif |
2050 | |
2369 | |
2051 | void |
2370 | void |
2052 | ev_embed_start (EV_P_ ev_embed *w) |
2371 | ev_embed_start (EV_P_ ev_embed *w) |
2053 | { |
2372 | { |
2054 | if (expect_false (ev_is_active (w))) |
2373 | if (expect_false (ev_is_active (w))) |
2055 | return; |
2374 | return; |
2056 | |
2375 | |
2057 | { |
2376 | { |
2058 | struct ev_loop *loop = w->loop; |
2377 | struct ev_loop *loop = w->other; |
2059 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2378 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2060 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2379 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2061 | } |
2380 | } |
2062 | |
2381 | |
2063 | ev_set_priority (&w->io, ev_priority (w)); |
2382 | ev_set_priority (&w->io, ev_priority (w)); |
2064 | ev_io_start (EV_A_ &w->io); |
2383 | ev_io_start (EV_A_ &w->io); |
2065 | |
2384 | |
|
|
2385 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2386 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2387 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2388 | |
|
|
2389 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2390 | |
2066 | ev_start (EV_A_ (W)w, 1); |
2391 | ev_start (EV_A_ (W)w, 1); |
2067 | } |
2392 | } |
2068 | |
2393 | |
2069 | void |
2394 | void |
2070 | ev_embed_stop (EV_P_ ev_embed *w) |
2395 | ev_embed_stop (EV_P_ ev_embed *w) |
2071 | { |
2396 | { |
2072 | ev_clear_pending (EV_A_ (W)w); |
2397 | clear_pending (EV_A_ (W)w); |
2073 | if (expect_false (!ev_is_active (w))) |
2398 | if (expect_false (!ev_is_active (w))) |
2074 | return; |
2399 | return; |
2075 | |
2400 | |
2076 | ev_io_stop (EV_A_ &w->io); |
2401 | ev_io_stop (EV_A_ &w->io); |
|
|
2402 | ev_prepare_stop (EV_A_ &w->prepare); |
2077 | |
2403 | |
2078 | ev_stop (EV_A_ (W)w); |
2404 | ev_stop (EV_A_ (W)w); |
2079 | } |
2405 | } |
2080 | #endif |
2406 | #endif |
2081 | |
2407 | |
… | |
… | |
2092 | } |
2418 | } |
2093 | |
2419 | |
2094 | void |
2420 | void |
2095 | ev_fork_stop (EV_P_ ev_fork *w) |
2421 | ev_fork_stop (EV_P_ ev_fork *w) |
2096 | { |
2422 | { |
2097 | ev_clear_pending (EV_A_ (W)w); |
2423 | clear_pending (EV_A_ (W)w); |
2098 | if (expect_false (!ev_is_active (w))) |
2424 | if (expect_false (!ev_is_active (w))) |
2099 | return; |
2425 | return; |
2100 | |
2426 | |
2101 | { |
2427 | { |
2102 | int active = ((W)w)->active; |
2428 | int active = ((W)w)->active; |
… | |
… | |
2106 | |
2432 | |
2107 | ev_stop (EV_A_ (W)w); |
2433 | ev_stop (EV_A_ (W)w); |
2108 | } |
2434 | } |
2109 | #endif |
2435 | #endif |
2110 | |
2436 | |
|
|
2437 | #if EV_ASYNC_ENABLE |
|
|
2438 | void |
|
|
2439 | ev_async_start (EV_P_ ev_async *w) |
|
|
2440 | { |
|
|
2441 | if (expect_false (ev_is_active (w))) |
|
|
2442 | return; |
|
|
2443 | |
|
|
2444 | evpipe_init (EV_A); |
|
|
2445 | |
|
|
2446 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2447 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2448 | asyncs [asynccnt - 1] = w; |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | void |
|
|
2452 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2453 | { |
|
|
2454 | clear_pending (EV_A_ (W)w); |
|
|
2455 | if (expect_false (!ev_is_active (w))) |
|
|
2456 | return; |
|
|
2457 | |
|
|
2458 | { |
|
|
2459 | int active = ((W)w)->active; |
|
|
2460 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2461 | ((W)asyncs [active - 1])->active = active; |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | ev_stop (EV_A_ (W)w); |
|
|
2465 | } |
|
|
2466 | |
|
|
2467 | void |
|
|
2468 | ev_async_send (EV_P_ ev_async *w) |
|
|
2469 | { |
|
|
2470 | w->sent = 1; |
|
|
2471 | evpipe_write (EV_A_ &gotasync); |
|
|
2472 | } |
|
|
2473 | #endif |
|
|
2474 | |
2111 | /*****************************************************************************/ |
2475 | /*****************************************************************************/ |
2112 | |
2476 | |
2113 | struct ev_once |
2477 | struct ev_once |
2114 | { |
2478 | { |
2115 | ev_io io; |
2479 | ev_io io; |
… | |
… | |
2170 | ev_timer_set (&once->to, timeout, 0.); |
2534 | ev_timer_set (&once->to, timeout, 0.); |
2171 | ev_timer_start (EV_A_ &once->to); |
2535 | ev_timer_start (EV_A_ &once->to); |
2172 | } |
2536 | } |
2173 | } |
2537 | } |
2174 | |
2538 | |
|
|
2539 | #if EV_MULTIPLICITY |
|
|
2540 | #include "ev_wrap.h" |
|
|
2541 | #endif |
|
|
2542 | |
2175 | #ifdef __cplusplus |
2543 | #ifdef __cplusplus |
2176 | } |
2544 | } |
2177 | #endif |
2545 | #endif |
2178 | |
2546 | |