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Comparing libev/ev.c (file contents):
Revision 1.143 by root, Tue Nov 27 07:27:10 2007 UTC vs.
Revision 1.210 by root, Sat Feb 9 00:34:11 2008 UTC

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
33extern "C" { 41extern "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
… …
94# else 110# else
95# define EV_USE_PORT 0 111# define EV_USE_PORT 0
96# endif 112# endif
97# endif 113# endif
98 114
115# ifndef EV_USE_INOTIFY
116# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
117# define EV_USE_INOTIFY 1
118# else
119# define EV_USE_INOTIFY 0
120# endif
121# endif
122
99#endif 123#endif
100 124
101#include <math.h> 125#include <math.h>
102#include <stdlib.h> 126#include <stdlib.h>
103#include <fcntl.h> 127#include <fcntl.h>
… …
109#include <errno.h> 133#include <errno.h>
110#include <sys/types.h> 134#include <sys/types.h>
111#include <time.h> 135#include <time.h>
112 136
113#include <signal.h> 137#include <signal.h>
138
139#ifdef EV_H
140# include EV_H
141#else
142# include "ev.h"
143#endif
114 144
115#ifndef _WIN32 145#ifndef _WIN32
116# include <sys/time.h> 146# include <sys/time.h>
117# include <sys/wait.h> 147# include <sys/wait.h>
118# include <unistd.h> 148# include <unistd.h>
… …
132 162
133#ifndef EV_USE_REALTIME 163#ifndef EV_USE_REALTIME
134# define EV_USE_REALTIME 0 164# define EV_USE_REALTIME 0
135#endif 165#endif
136 166
167#ifndef EV_USE_NANOSLEEP
168# define EV_USE_NANOSLEEP 0
169#endif
170
137#ifndef EV_USE_SELECT 171#ifndef EV_USE_SELECT
138# define EV_USE_SELECT 1 172# define EV_USE_SELECT 1
139#endif 173#endif
140 174
141#ifndef EV_USE_POLL 175#ifndef EV_USE_POLL
… …
156 190
157#ifndef EV_USE_PORT 191#ifndef EV_USE_PORT
158# define EV_USE_PORT 0 192# define EV_USE_PORT 0
159#endif 193#endif
160 194
195#ifndef EV_USE_INOTIFY
196# define EV_USE_INOTIFY 0
197#endif
198
199#ifndef EV_PID_HASHSIZE
200# if EV_MINIMAL
201# define EV_PID_HASHSIZE 1
202# else
203# define EV_PID_HASHSIZE 16
204# endif
205#endif
206
207#ifndef EV_INOTIFY_HASHSIZE
208# if EV_MINIMAL
209# define EV_INOTIFY_HASHSIZE 1
210# else
211# define EV_INOTIFY_HASHSIZE 16
212# endif
213#endif
214
161/**/ 215/**/
162 216
163#ifndef CLOCK_MONOTONIC 217#ifndef CLOCK_MONOTONIC
164# undef EV_USE_MONOTONIC 218# undef EV_USE_MONOTONIC
165# define EV_USE_MONOTONIC 0 219# define EV_USE_MONOTONIC 0
… …
168#ifndef CLOCK_REALTIME 222#ifndef CLOCK_REALTIME
169# undef EV_USE_REALTIME 223# undef EV_USE_REALTIME
170# define EV_USE_REALTIME 0 224# define EV_USE_REALTIME 0
171#endif 225#endif
172 226
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
173#if EV_SELECT_IS_WINSOCKET 242#if EV_SELECT_IS_WINSOCKET
174# include <winsock.h> 243# include <winsock.h>
175#endif 244#endif
176 245
177/**/ 246/**/
178 247
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 */
257
179#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) */
180#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) */
181#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182/*#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 */
183 261
184#ifdef EV_H
185# include EV_H
186#else
187# include "ev.h"
188#endif
189
190#if __GNUC__ >= 3 262#if __GNUC__ >= 4
191# define expect(expr,value) __builtin_expect ((expr),(value)) 263# define expect(expr,value) __builtin_expect ((expr),(value))
192# define inline_size static inline /* inline for codesize */
193# if EV_MINIMAL
194# define noinline __attribute__ ((noinline)) 264# define noinline __attribute__ ((noinline))
195# define inline_speed static noinline
196# else
197# define noinline
198# define inline_speed static inline
199# endif
200#else 265#else
201# define expect(expr,value) (expr) 266# define expect(expr,value) (expr)
202# define inline_speed static
203# define inline_minimal static
204# define noinline 267# define noinline
268# if __STDC_VERSION__ < 199901L
269# define inline
270# endif
205#endif 271#endif
206 272
207#define expect_false(expr) expect ((expr) != 0, 0) 273#define expect_false(expr) expect ((expr) != 0, 0)
208#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
209 282
210#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 283#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
211#define ABSPRI(w) ((w)->priority - EV_MINPRI) 284#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
212 285
213#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 286#define EMPTY /* required for microsofts broken pseudo-c compiler */
214#define EMPTY2(a,b) /* used to suppress some warnings */ 287#define EMPTY2(a,b) /* used to suppress some warnings */
215 288
216typedef ev_watcher *W; 289typedef ev_watcher *W;
217typedef ev_watcher_list *WL; 290typedef ev_watcher_list *WL;
218typedef ev_watcher_time *WT; 291typedef ev_watcher_time *WT;
219 292
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 */
220static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 296static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
297#endif
221 298
222#ifdef _WIN32 299#ifdef _WIN32
223# include "ev_win32.c" 300# include "ev_win32.c"
224#endif 301#endif
225 302
… …
254ev_set_allocator (void *(*cb)(void *ptr, long size)) 331ev_set_allocator (void *(*cb)(void *ptr, long size))
255{ 332{
256 alloc = cb; 333 alloc = cb;
257} 334}
258 335
259static void * 336inline_speed void *
260ev_realloc (void *ptr, long size) 337ev_realloc (void *ptr, long size)
261{ 338{
262 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 339 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
263 340
264 if (!ptr && size) 341 if (!ptr && size)
… …
288typedef struct 365typedef struct
289{ 366{
290 W w; 367 W w;
291 int events; 368 int events;
292} ANPENDING; 369} ANPENDING;
370
371#if EV_USE_INOTIFY
372typedef struct
373{
374 WL head;
375} ANFS;
376#endif
293 377
294#if EV_MULTIPLICITY 378#if EV_MULTIPLICITY
295 379
296 struct ev_loop 380 struct ev_loop
297 { 381 {
… …
354{ 438{
355 return ev_rt_now; 439 return ev_rt_now;
356} 440}
357#endif 441#endif
358 442
359#define array_roundsize(type,n) (((n) | 4) & ~3) 443void
444ev_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
470int inline_size
471array_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
491static noinline void *
492array_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}
360 497
361#define array_needsize(type,base,cur,cnt,init) \ 498#define array_needsize(type,base,cur,cnt,init) \
362 if (expect_false ((cnt) > cur)) \ 499 if (expect_false ((cnt) > (cur))) \
363 { \ 500 { \
364 int newcnt = cur; \ 501 int ocur_ = (cur); \
365 do \ 502 (base) = (type *)array_realloc \
366 { \ 503 (sizeof (type), (base), &(cur), (cnt)); \
367 newcnt = array_roundsize (type, newcnt << 1); \ 504 init ((base) + (ocur_), (cur) - ocur_); \
368 } \
369 while ((cnt) > newcnt); \
370 \
371 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
372 init (base + cur, newcnt - cur); \
373 cur = newcnt; \
374 } 505 }
375 506
507#if 0
376#define array_slim(type,stem) \ 508#define array_slim(type,stem) \
377 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 509 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
378 { \ 510 { \
379 stem ## max = array_roundsize (stem ## cnt >> 1); \ 511 stem ## max = array_roundsize (stem ## cnt >> 1); \
380 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 512 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
381 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 513 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
382 } 514 }
515#endif
383 516
384#define array_free(stem, idx) \ 517#define array_free(stem, idx) \
385 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;
386 519
387/*****************************************************************************/ 520/*****************************************************************************/
388 521
389void noinline 522void noinline
390ev_feed_event (EV_P_ void *w, int revents) 523ev_feed_event (EV_P_ void *w, int revents)
391{ 524{
392 W w_ = (W)w; 525 W w_ = (W)w;
526 int pri = ABSPRI (w_);
393 527
394 if (expect_false (w_->pending)) 528 if (expect_false (w_->pending))
529 pendings [pri][w_->pending - 1].events |= revents;
530 else
395 { 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_;
396 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 535 pendings [pri][w_->pending - 1].events = revents;
397 return;
398 } 536 }
399
400 w_->pending = ++pendingcnt [ABSPRI (w_)];
401 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
402 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
403 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
404} 537}
405 538
406void inline_size 539void inline_speed
407queue_events (EV_P_ W *events, int eventcnt, int type) 540queue_events (EV_P_ W *events, int eventcnt, int type)
408{ 541{
409 int i; 542 int i;
410 543
411 for (i = 0; i < eventcnt; ++i) 544 for (i = 0; i < eventcnt; ++i)
… …
443} 576}
444 577
445void 578void
446ev_feed_fd_event (EV_P_ int fd, int revents) 579ev_feed_fd_event (EV_P_ int fd, int revents)
447{ 580{
581 if (fd >= 0 && fd < anfdmax)
448 fd_event (EV_A_ fd, revents); 582 fd_event (EV_A_ fd, revents);
449} 583}
450 584
451void inline_size 585void inline_size
452fd_reify (EV_P) 586fd_reify (EV_P)
453{ 587{
… …
457 { 591 {
458 int fd = fdchanges [i]; 592 int fd = fdchanges [i];
459 ANFD *anfd = anfds + fd; 593 ANFD *anfd = anfds + fd;
460 ev_io *w; 594 ev_io *w;
461 595
462 int events = 0; 596 unsigned char events = 0;
463 597
464 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)
465 events |= w->events; 599 events |= (unsigned char)w->events;
466 600
467#if EV_SELECT_IS_WINSOCKET 601#if EV_SELECT_IS_WINSOCKET
468 if (events) 602 if (events)
469 { 603 {
470 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
471 anfd->handle = _get_osfhandle (fd); 608 anfd->handle = _get_osfhandle (fd);
609 #endif
472 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));
473 } 611 }
474#endif 612#endif
475 613
614 {
615 unsigned char o_events = anfd->events;
616 unsigned char o_reify = anfd->reify;
617
476 anfd->reify = 0; 618 anfd->reify = 0;
477
478 backend_modify (EV_A_ fd, anfd->events, events);
479 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 }
480 } 624 }
481 625
482 fdchangecnt = 0; 626 fdchangecnt = 0;
483} 627}
484 628
485void inline_size 629void inline_size
486fd_change (EV_P_ int fd) 630fd_change (EV_P_ int fd, int flags)
487{ 631{
488 if (expect_false (anfds [fd].reify)) 632 unsigned char reify = anfds [fd].reify;
489 return;
490
491 anfds [fd].reify = 1; 633 anfds [fd].reify |= flags;
492 634
635 if (expect_true (!reify))
636 {
493 ++fdchangecnt; 637 ++fdchangecnt;
494 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 638 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
495 fdchanges [fdchangecnt - 1] = fd; 639 fdchanges [fdchangecnt - 1] = fd;
640 }
496} 641}
497 642
498void inline_speed 643void inline_speed
499fd_kill (EV_P_ int fd) 644fd_kill (EV_P_ int fd)
500{ 645{
… …
547static void noinline 692static void noinline
548fd_rearm_all (EV_P) 693fd_rearm_all (EV_P)
549{ 694{
550 int fd; 695 int fd;
551 696
552 /* this should be highly optimised to not do anything but set a flag */
553 for (fd = 0; fd < anfdmax; ++fd) 697 for (fd = 0; fd < anfdmax; ++fd)
554 if (anfds [fd].events) 698 if (anfds [fd].events)
555 { 699 {
556 anfds [fd].events = 0; 700 anfds [fd].events = 0;
557 fd_change (EV_A_ fd); 701 fd_change (EV_A_ fd, EV_IOFDSET | 1);
558 } 702 }
559} 703}
560 704
561/*****************************************************************************/ 705/*****************************************************************************/
562 706
563void inline_speed 707void inline_speed
564upheap (WT *heap, int k) 708upheap (WT *heap, int k)
565{ 709{
566 WT w = heap [k]; 710 WT w = heap [k];
567 711
568 while (k && heap [k >> 1]->at > w->at) 712 while (k)
569 { 713 {
714 int p = (k - 1) >> 1;
715
716 if (heap [p]->at <= w->at)
717 break;
718
570 heap [k] = heap [k >> 1]; 719 heap [k] = heap [p];
571 ((W)heap [k])->active = k + 1; 720 ((W)heap [k])->active = k + 1;
572 k >>= 1; 721 k = p;
573 } 722 }
574 723
575 heap [k] = w; 724 heap [k] = w;
576 ((W)heap [k])->active = k + 1; 725 ((W)heap [k])->active = k + 1;
577
578} 726}
579 727
580void inline_speed 728void inline_speed
581downheap (WT *heap, int N, int k) 729downheap (WT *heap, int N, int k)
582{ 730{
583 WT w = heap [k]; 731 WT w = heap [k];
584 732
585 while (k < (N >> 1)) 733 for (;;)
586 { 734 {
587 int j = k << 1; 735 int c = (k << 1) + 1;
588 736
589 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 737 if (c >= N)
590 ++j;
591
592 if (w->at <= heap [j]->at)
593 break; 738 break;
594 739
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
595 heap [k] = heap [j]; 746 heap [k] = heap [c];
596 ((W)heap [k])->active = k + 1; 747 ((W)heap [k])->active = k + 1;
748
597 k = j; 749 k = c;
598 } 750 }
599 751
600 heap [k] = w; 752 heap [k] = w;
601 ((W)heap [k])->active = k + 1; 753 ((W)heap [k])->active = k + 1;
602} 754}
… …
611/*****************************************************************************/ 763/*****************************************************************************/
612 764
613typedef struct 765typedef struct
614{ 766{
615 WL head; 767 WL head;
616 sig_atomic_t volatile gotsig; 768 EV_ATOMIC_T gotsig;
617} ANSIG; 769} ANSIG;
618 770
619static ANSIG *signals; 771static ANSIG *signals;
620static int signalmax; 772static int signalmax;
621 773
622static int sigpipe [2]; 774static EV_ATOMIC_T gotsig;
623static sig_atomic_t volatile gotsig;
624static ev_io sigev;
625 775
626void inline_size 776void inline_size
627signals_init (ANSIG *base, int count) 777signals_init (ANSIG *base, int count)
628{ 778{
629 while (count--) 779 while (count--)
… …
633 783
634 ++base; 784 ++base;
635 } 785 }
636} 786}
637 787
638static void 788/*****************************************************************************/
639sighandler (int signum)
640{
641#if _WIN32
642 signal (signum, sighandler);
643#endif
644 789
645 signals [signum - 1].gotsig = 1;
646
647 if (!gotsig)
648 {
649 int old_errno = errno;
650 gotsig = 1;
651 write (sigpipe [1], &signum, 1);
652 errno = old_errno;
653 }
654}
655
656void noinline
657ev_feed_signal_event (EV_P_ int signum)
658{
659 WL w;
660
661#if EV_MULTIPLICITY
662 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
663#endif
664
665 --signum;
666
667 if (signum < 0 || signum >= signalmax)
668 return;
669
670 signals [signum].gotsig = 0;
671
672 for (w = signals [signum].head; w; w = w->next)
673 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
674}
675
676static void
677sigcb (EV_P_ ev_io *iow, int revents)
678{
679 int signum;
680
681 read (sigpipe [0], &revents, 1);
682 gotsig = 0;
683
684 for (signum = signalmax; signum--; )
685 if (signals [signum].gotsig)
686 ev_feed_signal_event (EV_A_ signum + 1);
687}
688
689void inline_size 790void inline_speed
690fd_intern (int fd) 791fd_intern (int fd)
691{ 792{
692#ifdef _WIN32 793#ifdef _WIN32
693 int arg = 1; 794 int arg = 1;
694 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 795 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
697 fcntl (fd, F_SETFL, O_NONBLOCK); 798 fcntl (fd, F_SETFL, O_NONBLOCK);
698#endif 799#endif
699} 800}
700 801
701static void noinline 802static void noinline
702siginit (EV_P) 803evpipe_init (EV_P)
703{ 804{
805 if (!ev_is_active (&pipeev))
806 {
807 while (pipe (evpipe))
808 syserr ("(libev) error creating signal/async pipe");
809
704 fd_intern (sigpipe [0]); 810 fd_intern (evpipe [0]);
705 fd_intern (sigpipe [1]); 811 fd_intern (evpipe [1]);
706 812
707 ev_io_set (&sigev, sigpipe [0], EV_READ); 813 ev_io_set (&pipeev, evpipe [0], EV_READ);
708 ev_io_start (EV_A_ &sigev); 814 ev_io_start (EV_A_ &pipeev);
709 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
819void inline_size
820evpipe_write (EV_P_ int sig, int async)
821{
822 if (!(gotasync || gotsig))
823 {
824 int old_errno = errno; /* save errno becaue write might clobber it */
825
826 if (sig) gotsig = 1;
827 if (async) gotasync = 1;
828
829 write (evpipe [1], &old_errno, 1);
830
831 errno = old_errno;
832 }
833}
834
835static void
836pipecb (EV_P_ ev_io *iow, int revents)
837{
838 {
839 int dummy;
840 read (evpipe [0], &dummy, 1);
841 }
842
843 if (gotsig)
844 {
845 int signum;
846 gotsig = 0;
847
848 for (signum = signalmax; signum--; )
849 if (signals [signum].gotsig)
850 ev_feed_signal_event (EV_A_ signum + 1);
851 }
852
853#if EV_ASYNC_ENABLE
854 if (gotasync)
855 {
856 int i;
857 gotasync = 0;
858
859 for (i = asynccnt; i--; )
860 if (asyncs [i]->sent)
861 {
862 asyncs [i]->sent = 0;
863 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
864 }
865 }
866#endif
710} 867}
711 868
712/*****************************************************************************/ 869/*****************************************************************************/
713 870
871static void
872sighandler (int signum)
873{
874#if EV_MULTIPLICITY
875 struct ev_loop *loop = &default_loop_struct;
876#endif
877
878#if _WIN32
879 signal (signum, sighandler);
880#endif
881
882 signals [signum - 1].gotsig = 1;
883 evpipe_write (EV_A_ 1, 0);
884}
885
886void noinline
887ev_feed_signal_event (EV_P_ int signum)
888{
889 WL w;
890
891#if EV_MULTIPLICITY
892 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
893#endif
894
895 --signum;
896
897 if (signum < 0 || signum >= signalmax)
898 return;
899
900 signals [signum].gotsig = 0;
901
902 for (w = signals [signum].head; w; w = w->next)
903 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
904}
905
906/*****************************************************************************/
907
714static ev_child *childs [PID_HASHSIZE]; 908static WL childs [EV_PID_HASHSIZE];
715 909
716#ifndef _WIN32 910#ifndef _WIN32
717 911
718static ev_signal childev; 912static ev_signal childev;
913
914#ifndef WIFCONTINUED
915# define WIFCONTINUED(status) 0
916#endif
719 917
720void inline_speed 918void inline_speed
721child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 919child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
722{ 920{
723 ev_child *w; 921 ev_child *w;
922 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
724 923
725 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 924 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
925 {
726 if (w->pid == pid || !w->pid) 926 if ((w->pid == pid || !w->pid)
927 && (!traced || (w->flags & 1)))
727 { 928 {
728 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 929 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
729 w->rpid = pid; 930 w->rpid = pid;
730 w->rstatus = status; 931 w->rstatus = status;
731 ev_feed_event (EV_A_ (W)w, EV_CHILD); 932 ev_feed_event (EV_A_ (W)w, EV_CHILD);
732 } 933 }
934 }
733} 935}
734 936
735#ifndef WCONTINUED 937#ifndef WCONTINUED
736# define WCONTINUED 0 938# define WCONTINUED 0
737#endif 939#endif
… …
751 /* make sure we are called again until all childs have been reaped */ 953 /* make sure we are called again until all childs have been reaped */
752 /* we need to do it this way so that the callback gets called before we continue */ 954 /* we need to do it this way so that the callback gets called before we continue */
753 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 955 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
754 956
755 child_reap (EV_A_ sw, pid, pid, status); 957 child_reap (EV_A_ sw, pid, pid, status);
958 if (EV_PID_HASHSIZE > 1)
756 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 959 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
757} 960}
758 961
759#endif 962#endif
760 963
761/*****************************************************************************/ 964/*****************************************************************************/
… …
833} 1036}
834 1037
835unsigned int 1038unsigned int
836ev_embeddable_backends (void) 1039ev_embeddable_backends (void)
837{ 1040{
838 return EVBACKEND_EPOLL 1041 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
839 | EVBACKEND_KQUEUE 1042
840 | EVBACKEND_PORT; 1043 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1044 /* please fix it and tell me how to detect the fix */
1045 flags &= ~EVBACKEND_EPOLL;
1046
1047 return flags;
841} 1048}
842 1049
843unsigned int 1050unsigned int
844ev_backend (EV_P) 1051ev_backend (EV_P)
845{ 1052{
846 return backend; 1053 return backend;
847} 1054}
848 1055
849static void 1056unsigned int
1057ev_loop_count (EV_P)
1058{
1059 return loop_count;
1060}
1061
1062void
1063ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1064{
1065 io_blocktime = interval;
1066}
1067
1068void
1069ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1070{
1071 timeout_blocktime = interval;
1072}
1073
1074static void noinline
850loop_init (EV_P_ unsigned int flags) 1075loop_init (EV_P_ unsigned int flags)
851{ 1076{
852 if (!backend) 1077 if (!backend)
853 { 1078 {
854#if EV_USE_MONOTONIC 1079#if EV_USE_MONOTONIC
… …
857 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1082 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
858 have_monotonic = 1; 1083 have_monotonic = 1;
859 } 1084 }
860#endif 1085#endif
861 1086
862 ev_rt_now = ev_time (); 1087 ev_rt_now = ev_time ();
863 mn_now = get_clock (); 1088 mn_now = get_clock ();
864 now_floor = mn_now; 1089 now_floor = mn_now;
865 rtmn_diff = ev_rt_now - mn_now; 1090 rtmn_diff = ev_rt_now - mn_now;
1091
1092 io_blocktime = 0.;
1093 timeout_blocktime = 0.;
1094 backend = 0;
1095 backend_fd = -1;
1096 gotasync = 0;
1097#if EV_USE_INOTIFY
1098 fs_fd = -2;
1099#endif
1100
1101 /* pid check not overridable via env */
1102#ifndef _WIN32
1103 if (flags & EVFLAG_FORKCHECK)
1104 curpid = getpid ();
1105#endif
866 1106
867 if (!(flags & EVFLAG_NOENV) 1107 if (!(flags & EVFLAG_NOENV)
868 && !enable_secure () 1108 && !enable_secure ()
869 && getenv ("LIBEV_FLAGS")) 1109 && getenv ("LIBEV_FLAGS"))
870 flags = atoi (getenv ("LIBEV_FLAGS")); 1110 flags = atoi (getenv ("LIBEV_FLAGS"));
871 1111
872 if (!(flags & 0x0000ffffUL)) 1112 if (!(flags & 0x0000ffffUL))
873 flags |= ev_recommended_backends (); 1113 flags |= ev_recommended_backends ();
874 1114
875 backend = 0;
876#if EV_USE_PORT 1115#if EV_USE_PORT
877 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1116 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
878#endif 1117#endif
879#if EV_USE_KQUEUE 1118#if EV_USE_KQUEUE
880 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1119 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
887#endif 1126#endif
888#if EV_USE_SELECT 1127#if EV_USE_SELECT
889 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1128 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
890#endif 1129#endif
891 1130
892 ev_init (&sigev, sigcb); 1131 ev_init (&pipeev, pipecb);
893 ev_set_priority (&sigev, EV_MAXPRI); 1132 ev_set_priority (&pipeev, EV_MAXPRI);
894 } 1133 }
895} 1134}
896 1135
897static void 1136static void noinline
898loop_destroy (EV_P) 1137loop_destroy (EV_P)
899{ 1138{
900 int i; 1139 int i;
1140
1141 if (ev_is_active (&pipeev))
1142 {
1143 ev_ref (EV_A); /* signal watcher */
1144 ev_io_stop (EV_A_ &pipeev);
1145
1146 close (evpipe [0]); evpipe [0] = 0;
1147 close (evpipe [1]); evpipe [1] = 0;
1148 }
1149
1150#if EV_USE_INOTIFY
1151 if (fs_fd >= 0)
1152 close (fs_fd);
1153#endif
1154
1155 if (backend_fd >= 0)
1156 close (backend_fd);
901 1157
902#if EV_USE_PORT 1158#if EV_USE_PORT
903 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1159 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
904#endif 1160#endif
905#if EV_USE_KQUEUE 1161#if EV_USE_KQUEUE
… …
914#if EV_USE_SELECT 1170#if EV_USE_SELECT
915 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 1171 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
916#endif 1172#endif
917 1173
918 for (i = NUMPRI; i--; ) 1174 for (i = NUMPRI; i--; )
1175 {
919 array_free (pending, [i]); 1176 array_free (pending, [i]);
1177#if EV_IDLE_ENABLE
1178 array_free (idle, [i]);
1179#endif
1180 }
1181
1182 ev_free (anfds); anfdmax = 0;
920 1183
921 /* have to use the microsoft-never-gets-it-right macro */ 1184 /* have to use the microsoft-never-gets-it-right macro */
922 array_free (fdchange, EMPTY0); 1185 array_free (fdchange, EMPTY);
923 array_free (timer, EMPTY0); 1186 array_free (timer, EMPTY);
924#if EV_PERIODIC_ENABLE 1187#if EV_PERIODIC_ENABLE
925 array_free (periodic, EMPTY0); 1188 array_free (periodic, EMPTY);
926#endif 1189#endif
1190#if EV_FORK_ENABLE
927 array_free (idle, EMPTY0); 1191 array_free (fork, EMPTY);
1192#endif
928 array_free (prepare, EMPTY0); 1193 array_free (prepare, EMPTY);
929 array_free (check, EMPTY0); 1194 array_free (check, EMPTY);
1195#if EV_ASYNC_ENABLE
1196 array_free (async, EMPTY);
1197#endif
930 1198
931 backend = 0; 1199 backend = 0;
932} 1200}
933 1201
934static void 1202void inline_size infy_fork (EV_P);
1203
1204void inline_size
935loop_fork (EV_P) 1205loop_fork (EV_P)
936{ 1206{
937#if EV_USE_PORT 1207#if EV_USE_PORT
938 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1208 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
939#endif 1209#endif
… …
941 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 1211 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
942#endif 1212#endif
943#if EV_USE_EPOLL 1213#if EV_USE_EPOLL
944 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 1214 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
945#endif 1215#endif
1216#if EV_USE_INOTIFY
1217 infy_fork (EV_A);
1218#endif
946 1219
947 if (ev_is_active (&sigev)) 1220 if (ev_is_active (&pipeev))
948 { 1221 {
949 /* default loop */ 1222 /* this "locks" the handlers against writing to the pipe */
1223 gotsig = gotasync = 1;
950 1224
951 ev_ref (EV_A); 1225 ev_ref (EV_A);
952 ev_io_stop (EV_A_ &sigev); 1226 ev_io_stop (EV_A_ &pipeev);
953 close (sigpipe [0]); 1227 close (evpipe [0]);
954 close (sigpipe [1]); 1228 close (evpipe [1]);
955 1229
956 while (pipe (sigpipe))
957 syserr ("(libev) error creating pipe");
958
959 siginit (EV_A); 1230 evpipe_init (EV_A);
1231 /* now iterate over everything, in case we missed something */
1232 pipecb (EV_A_ &pipeev, EV_READ);
960 } 1233 }
961 1234
962 postfork = 0; 1235 postfork = 0;
963} 1236}
964 1237
… …
986} 1259}
987 1260
988void 1261void
989ev_loop_fork (EV_P) 1262ev_loop_fork (EV_P)
990{ 1263{
991 postfork = 1; 1264 postfork = 1; /* must be in line with ev_default_fork */
992} 1265}
993 1266
994#endif 1267#endif
995 1268
996#if EV_MULTIPLICITY 1269#if EV_MULTIPLICITY
… …
999#else 1272#else
1000int 1273int
1001ev_default_loop (unsigned int flags) 1274ev_default_loop (unsigned int flags)
1002#endif 1275#endif
1003{ 1276{
1004 if (sigpipe [0] == sigpipe [1])
1005 if (pipe (sigpipe))
1006 return 0;
1007
1008 if (!ev_default_loop_ptr) 1277 if (!ev_default_loop_ptr)
1009 { 1278 {
1010#if EV_MULTIPLICITY 1279#if EV_MULTIPLICITY
1011 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1280 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1012#else 1281#else
… …
1015 1284
1016 loop_init (EV_A_ flags); 1285 loop_init (EV_A_ flags);
1017 1286
1018 if (ev_backend (EV_A)) 1287 if (ev_backend (EV_A))
1019 { 1288 {
1020 siginit (EV_A);
1021
1022#ifndef _WIN32 1289#ifndef _WIN32
1023 ev_signal_init (&childev, childcb, SIGCHLD); 1290 ev_signal_init (&childev, childcb, SIGCHLD);
1024 ev_set_priority (&childev, EV_MAXPRI); 1291 ev_set_priority (&childev, EV_MAXPRI);
1025 ev_signal_start (EV_A_ &childev); 1292 ev_signal_start (EV_A_ &childev);
1026 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1293 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1043#ifndef _WIN32 1310#ifndef _WIN32
1044 ev_ref (EV_A); /* child watcher */ 1311 ev_ref (EV_A); /* child watcher */
1045 ev_signal_stop (EV_A_ &childev); 1312 ev_signal_stop (EV_A_ &childev);
1046#endif 1313#endif
1047 1314
1048 ev_ref (EV_A); /* signal watcher */
1049 ev_io_stop (EV_A_ &sigev);
1050
1051 close (sigpipe [0]); sigpipe [0] = 0;
1052 close (sigpipe [1]); sigpipe [1] = 0;
1053
1054 loop_destroy (EV_A); 1315 loop_destroy (EV_A);
1055} 1316}
1056 1317
1057void 1318void
1058ev_default_fork (void) 1319ev_default_fork (void)
… …
1060#if EV_MULTIPLICITY 1321#if EV_MULTIPLICITY
1061 struct ev_loop *loop = ev_default_loop_ptr; 1322 struct ev_loop *loop = ev_default_loop_ptr;
1062#endif 1323#endif
1063 1324
1064 if (backend) 1325 if (backend)
1065 postfork = 1; 1326 postfork = 1; /* must be in line with ev_loop_fork */
1066} 1327}
1067 1328
1068/*****************************************************************************/ 1329/*****************************************************************************/
1069 1330
1070int inline_size 1331void
1071any_pending (EV_P) 1332ev_invoke (EV_P_ void *w, int revents)
1072{ 1333{
1073 int pri; 1334 EV_CB_INVOKE ((W)w, revents);
1074
1075 for (pri = NUMPRI; pri--; )
1076 if (pendingcnt [pri])
1077 return 1;
1078
1079 return 0;
1080} 1335}
1081 1336
1082void inline_speed 1337void inline_speed
1083call_pending (EV_P) 1338call_pending (EV_P)
1084{ 1339{
… …
1089 { 1344 {
1090 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1345 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1091 1346
1092 if (expect_true (p->w)) 1347 if (expect_true (p->w))
1093 { 1348 {
1094 assert (("non-pending watcher on pending list", p->w->pending)); 1349 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1095 1350
1096 p->w->pending = 0; 1351 p->w->pending = 0;
1097 EV_CB_INVOKE (p->w, p->events); 1352 EV_CB_INVOKE (p->w, p->events);
1098 } 1353 }
1099 } 1354 }
… …
1102void inline_size 1357void inline_size
1103timers_reify (EV_P) 1358timers_reify (EV_P)
1104{ 1359{
1105 while (timercnt && ((WT)timers [0])->at <= mn_now) 1360 while (timercnt && ((WT)timers [0])->at <= mn_now)
1106 { 1361 {
1107 ev_timer *w = timers [0]; 1362 ev_timer *w = (ev_timer *)timers [0];
1108 1363
1109 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1364 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1110 1365
1111 /* first reschedule or stop timer */ 1366 /* first reschedule or stop timer */
1112 if (w->repeat) 1367 if (w->repeat)
1113 { 1368 {
1114 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1369 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1115 1370
1116 ((WT)w)->at += w->repeat; 1371 ((WT)w)->at += w->repeat;
1117 if (((WT)w)->at < mn_now) 1372 if (((WT)w)->at < mn_now)
1118 ((WT)w)->at = mn_now; 1373 ((WT)w)->at = mn_now;
1119 1374
1120 downheap ((WT *)timers, timercnt, 0); 1375 downheap (timers, timercnt, 0);
1121 } 1376 }
1122 else 1377 else
1123 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1378 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1124 1379
1125 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1380 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1130void inline_size 1385void inline_size
1131periodics_reify (EV_P) 1386periodics_reify (EV_P)
1132{ 1387{
1133 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1388 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1134 { 1389 {
1135 ev_periodic *w = periodics [0]; 1390 ev_periodic *w = (ev_periodic *)periodics [0];
1136 1391
1137 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1392 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1138 1393
1139 /* first reschedule or stop timer */ 1394 /* first reschedule or stop timer */
1140 if (w->reschedule_cb) 1395 if (w->reschedule_cb)
1141 { 1396 {
1142 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1397 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1143 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1398 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1144 downheap ((WT *)periodics, periodiccnt, 0); 1399 downheap (periodics, periodiccnt, 0);
1145 } 1400 }
1146 else if (w->interval) 1401 else if (w->interval)
1147 { 1402 {
1148 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1403 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1404 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1149 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1405 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1150 downheap ((WT *)periodics, periodiccnt, 0); 1406 downheap (periodics, periodiccnt, 0);
1151 } 1407 }
1152 else 1408 else
1153 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1409 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1154 1410
1155 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1411 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1162 int i; 1418 int i;
1163 1419
1164 /* adjust periodics after time jump */ 1420 /* adjust periodics after time jump */
1165 for (i = 0; i < periodiccnt; ++i) 1421 for (i = 0; i < periodiccnt; ++i)
1166 { 1422 {
1167 ev_periodic *w = periodics [i]; 1423 ev_periodic *w = (ev_periodic *)periodics [i];
1168 1424
1169 if (w->reschedule_cb) 1425 if (w->reschedule_cb)
1170 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1426 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1171 else if (w->interval) 1427 else if (w->interval)
1172 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1428 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1173 } 1429 }
1174 1430
1175 /* now rebuild the heap */ 1431 /* now rebuild the heap */
1176 for (i = periodiccnt >> 1; i--; ) 1432 for (i = periodiccnt >> 1; i--; )
1177 downheap ((WT *)periodics, periodiccnt, i); 1433 downheap (periodics, periodiccnt, i);
1178} 1434}
1179#endif 1435#endif
1180 1436
1437#if EV_IDLE_ENABLE
1181int inline_size 1438void inline_size
1182time_update_monotonic (EV_P) 1439idle_reify (EV_P)
1183{ 1440{
1441 if (expect_false (idleall))
1442 {
1443 int pri;
1444
1445 for (pri = NUMPRI; pri--; )
1446 {
1447 if (pendingcnt [pri])
1448 break;
1449
1450 if (idlecnt [pri])
1451 {
1452 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1453 break;
1454 }
1455 }
1456 }
1457}
1458#endif
1459
1460void inline_speed
1461time_update (EV_P_ ev_tstamp max_block)
1462{
1463 int i;
1464
1465#if EV_USE_MONOTONIC
1466 if (expect_true (have_monotonic))
1467 {
1468 ev_tstamp odiff = rtmn_diff;
1469
1184 mn_now = get_clock (); 1470 mn_now = get_clock ();
1185 1471
1472 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1473 /* interpolate in the meantime */
1186 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1474 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1187 { 1475 {
1188 ev_rt_now = rtmn_diff + mn_now; 1476 ev_rt_now = rtmn_diff + mn_now;
1189 return 0; 1477 return;
1190 } 1478 }
1191 else 1479
1192 {
1193 now_floor = mn_now; 1480 now_floor = mn_now;
1194 ev_rt_now = ev_time (); 1481 ev_rt_now = ev_time ();
1195 return 1;
1196 }
1197}
1198 1482
1199void inline_size 1483 /* loop a few times, before making important decisions.
1200time_update (EV_P) 1484 * on the choice of "4": one iteration isn't enough,
1201{ 1485 * in case we get preempted during the calls to
1202 int i; 1486 * ev_time and get_clock. a second call is almost guaranteed
1203 1487 * to succeed in that case, though. and looping a few more times
1204#if EV_USE_MONOTONIC 1488 * doesn't hurt either as we only do this on time-jumps or
1205 if (expect_true (have_monotonic)) 1489 * in the unlikely event of having been preempted here.
1206 { 1490 */
1207 if (time_update_monotonic (EV_A)) 1491 for (i = 4; --i; )
1208 { 1492 {
1209 ev_tstamp odiff = rtmn_diff;
1210
1211 /* loop a few times, before making important decisions.
1212 * on the choice of "4": one iteration isn't enough,
1213 * in case we get preempted during the calls to
1214 * ev_time and get_clock. a second call is almost guarenteed
1215 * to succeed in that case, though. and looping a few more times
1216 * doesn't hurt either as we only do this on time-jumps or
1217 * in the unlikely event of getting preempted here.
1218 */
1219 for (i = 4; --i; )
1220 {
1221 rtmn_diff = ev_rt_now - mn_now; 1493 rtmn_diff = ev_rt_now - mn_now;
1222 1494
1223 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1495 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1224 return; /* all is well */ 1496 return; /* all is well */
1225 1497
1226 ev_rt_now = ev_time (); 1498 ev_rt_now = ev_time ();
1227 mn_now = get_clock (); 1499 mn_now = get_clock ();
1228 now_floor = mn_now; 1500 now_floor = mn_now;
1229 } 1501 }
1230 1502
1231# if EV_PERIODIC_ENABLE 1503# if EV_PERIODIC_ENABLE
1232 periodics_reschedule (EV_A); 1504 periodics_reschedule (EV_A);
1233# endif 1505# endif
1234 /* no timer adjustment, as the monotonic clock doesn't jump */ 1506 /* no timer adjustment, as the monotonic clock doesn't jump */
1235 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1507 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1236 }
1237 } 1508 }
1238 else 1509 else
1239#endif 1510#endif
1240 { 1511 {
1241 ev_rt_now = ev_time (); 1512 ev_rt_now = ev_time ();
1242 1513
1243 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1514 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1244 { 1515 {
1245#if EV_PERIODIC_ENABLE 1516#if EV_PERIODIC_ENABLE
1246 periodics_reschedule (EV_A); 1517 periodics_reschedule (EV_A);
1247#endif 1518#endif
1248
1249 /* adjust timers. this is easy, as the offset is the same for all */ 1519 /* adjust timers. this is easy, as the offset is the same for all of them */
1250 for (i = 0; i < timercnt; ++i) 1520 for (i = 0; i < timercnt; ++i)
1251 ((WT)timers [i])->at += ev_rt_now - mn_now; 1521 ((WT)timers [i])->at += ev_rt_now - mn_now;
1252 } 1522 }
1253 1523
1254 mn_now = ev_rt_now; 1524 mn_now = ev_rt_now;
… …
1274{ 1544{
1275 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1545 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1276 ? EVUNLOOP_ONE 1546 ? EVUNLOOP_ONE
1277 : EVUNLOOP_CANCEL; 1547 : EVUNLOOP_CANCEL;
1278 1548
1279 while (activecnt) 1549 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1550
1551 do
1280 { 1552 {
1553#ifndef _WIN32
1554 if (expect_false (curpid)) /* penalise the forking check even more */
1555 if (expect_false (getpid () != curpid))
1556 {
1557 curpid = getpid ();
1558 postfork = 1;
1559 }
1560#endif
1561
1562#if EV_FORK_ENABLE
1563 /* we might have forked, so queue fork handlers */
1564 if (expect_false (postfork))
1565 if (forkcnt)
1566 {
1567 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1568 call_pending (EV_A);
1569 }
1570#endif
1571
1281 /* queue check watchers (and execute them) */ 1572 /* queue prepare watchers (and execute them) */
1282 if (expect_false (preparecnt)) 1573 if (expect_false (preparecnt))
1283 { 1574 {
1284 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1575 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1285 call_pending (EV_A); 1576 call_pending (EV_A);
1286 } 1577 }
1287 1578
1579 if (expect_false (!activecnt))
1580 break;
1581
1288 /* we might have forked, so reify kernel state if necessary */ 1582 /* we might have forked, so reify kernel state if necessary */
1289 if (expect_false (postfork)) 1583 if (expect_false (postfork))
1290 loop_fork (EV_A); 1584 loop_fork (EV_A);
1291 1585
1292 /* update fd-related kernel structures */ 1586 /* update fd-related kernel structures */
1293 fd_reify (EV_A); 1587 fd_reify (EV_A);
1294 1588
1295 /* calculate blocking time */ 1589 /* calculate blocking time */
1296 { 1590 {
1297 double block; 1591 ev_tstamp waittime = 0.;
1592 ev_tstamp sleeptime = 0.;
1298 1593
1299 if (flags & EVLOOP_NONBLOCK || idlecnt) 1594 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1300 block = 0.; /* do not block at all */
1301 else
1302 { 1595 {
1303 /* update time to cancel out callback processing overhead */ 1596 /* update time to cancel out callback processing overhead */
1304#if EV_USE_MONOTONIC
1305 if (expect_true (have_monotonic))
1306 time_update_monotonic (EV_A); 1597 time_update (EV_A_ 1e100);
1307 else
1308#endif
1309 {
1310 ev_rt_now = ev_time ();
1311 mn_now = ev_rt_now;
1312 }
1313 1598
1314 block = MAX_BLOCKTIME; 1599 waittime = MAX_BLOCKTIME;
1315 1600
1316 if (timercnt) 1601 if (timercnt)
1317 { 1602 {
1318 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1603 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1319 if (block > to) block = to; 1604 if (waittime > to) waittime = to;
1320 } 1605 }
1321 1606
1322#if EV_PERIODIC_ENABLE 1607#if EV_PERIODIC_ENABLE
1323 if (periodiccnt) 1608 if (periodiccnt)
1324 { 1609 {
1325 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1610 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1326 if (block > to) block = to; 1611 if (waittime > to) waittime = to;
1327 } 1612 }
1328#endif 1613#endif
1329 1614
1330 if (expect_false (block < 0.)) block = 0.; 1615 if (expect_false (waittime < timeout_blocktime))
1616 waittime = timeout_blocktime;
1617
1618 sleeptime = waittime - backend_fudge;
1619
1620 if (expect_true (sleeptime > io_blocktime))
1621 sleeptime = io_blocktime;
1622
1623 if (sleeptime)
1624 {
1625 ev_sleep (sleeptime);
1626 waittime -= sleeptime;
1627 }
1331 } 1628 }
1332 1629
1630 ++loop_count;
1333 backend_poll (EV_A_ block); 1631 backend_poll (EV_A_ waittime);
1632
1633 /* update ev_rt_now, do magic */
1634 time_update (EV_A_ waittime + sleeptime);
1334 } 1635 }
1335
1336 /* update ev_rt_now, do magic */
1337 time_update (EV_A);
1338 1636
1339 /* queue pending timers and reschedule them */ 1637 /* queue pending timers and reschedule them */
1340 timers_reify (EV_A); /* relative timers called last */ 1638 timers_reify (EV_A); /* relative timers called last */
1341#if EV_PERIODIC_ENABLE 1639#if EV_PERIODIC_ENABLE
1342 periodics_reify (EV_A); /* absolute timers called first */ 1640 periodics_reify (EV_A); /* absolute timers called first */
1343#endif 1641#endif
1344 1642
1643#if EV_IDLE_ENABLE
1345 /* queue idle watchers unless other events are pending */ 1644 /* queue idle watchers unless other events are pending */
1346 if (idlecnt && !any_pending (EV_A)) 1645 idle_reify (EV_A);
1347 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1646#endif
1348 1647
1349 /* queue check watchers, to be executed first */ 1648 /* queue check watchers, to be executed first */
1350 if (expect_false (checkcnt)) 1649 if (expect_false (checkcnt))
1351 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1650 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1352 1651
1353 call_pending (EV_A); 1652 call_pending (EV_A);
1354 1653
1355 if (expect_false (loop_done))
1356 break;
1357 } 1654 }
1655 while (expect_true (activecnt && !loop_done));
1358 1656
1359 if (loop_done == EVUNLOOP_ONE) 1657 if (loop_done == EVUNLOOP_ONE)
1360 loop_done = EVUNLOOP_CANCEL; 1658 loop_done = EVUNLOOP_CANCEL;
1361} 1659}
1362 1660
… …
1389 head = &(*head)->next; 1687 head = &(*head)->next;
1390 } 1688 }
1391} 1689}
1392 1690
1393void inline_speed 1691void inline_speed
1394ev_clear_pending (EV_P_ W w) 1692clear_pending (EV_P_ W w)
1395{ 1693{
1396 if (w->pending) 1694 if (w->pending)
1397 { 1695 {
1398 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1696 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1399 w->pending = 0; 1697 w->pending = 0;
1400 } 1698 }
1401} 1699}
1402 1700
1701int
1702ev_clear_pending (EV_P_ void *w)
1703{
1704 W w_ = (W)w;
1705 int pending = w_->pending;
1706
1707 if (expect_true (pending))
1708 {
1709 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1710 w_->pending = 0;
1711 p->w = 0;
1712 return p->events;
1713 }
1714 else
1715 return 0;
1716}
1717
1718void inline_size
1719pri_adjust (EV_P_ W w)
1720{
1721 int pri = w->priority;
1722 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1723 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1724 w->priority = pri;
1725}
1726
1403void inline_speed 1727void inline_speed
1404ev_start (EV_P_ W w, int active) 1728ev_start (EV_P_ W w, int active)
1405{ 1729{
1406 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1730 pri_adjust (EV_A_ w);
1407 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1408
1409 w->active = active; 1731 w->active = active;
1410 ev_ref (EV_A); 1732 ev_ref (EV_A);
1411} 1733}
1412 1734
1413void inline_size 1735void inline_size
… …
1417 w->active = 0; 1739 w->active = 0;
1418} 1740}
1419 1741
1420/*****************************************************************************/ 1742/*****************************************************************************/
1421 1743
1422void 1744void noinline
1423ev_io_start (EV_P_ ev_io *w) 1745ev_io_start (EV_P_ ev_io *w)
1424{ 1746{
1425 int fd = w->fd; 1747 int fd = w->fd;
1426 1748
1427 if (expect_false (ev_is_active (w))) 1749 if (expect_false (ev_is_active (w)))
… …
1429 1751
1430 assert (("ev_io_start called with negative fd", fd >= 0)); 1752 assert (("ev_io_start called with negative fd", fd >= 0));
1431 1753
1432 ev_start (EV_A_ (W)w, 1); 1754 ev_start (EV_A_ (W)w, 1);
1433 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1755 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1434 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1756 wlist_add (&anfds[fd].head, (WL)w);
1435 1757
1436 fd_change (EV_A_ fd); 1758 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1759 w->events &= ~EV_IOFDSET;
1437} 1760}
1438 1761
1439void 1762void noinline
1440ev_io_stop (EV_P_ ev_io *w) 1763ev_io_stop (EV_P_ ev_io *w)
1441{ 1764{
1442 ev_clear_pending (EV_A_ (W)w); 1765 clear_pending (EV_A_ (W)w);
1443 if (expect_false (!ev_is_active (w))) 1766 if (expect_false (!ev_is_active (w)))
1444 return; 1767 return;
1445 1768
1446 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1769 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1447 1770
1448 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1771 wlist_del (&anfds[w->fd].head, (WL)w);
1449 ev_stop (EV_A_ (W)w); 1772 ev_stop (EV_A_ (W)w);
1450 1773
1451 fd_change (EV_A_ w->fd); 1774 fd_change (EV_A_ w->fd, 1);
1452} 1775}
1453 1776
1454void 1777void noinline
1455ev_timer_start (EV_P_ ev_timer *w) 1778ev_timer_start (EV_P_ ev_timer *w)
1456{ 1779{
1457 if (expect_false (ev_is_active (w))) 1780 if (expect_false (ev_is_active (w)))
1458 return; 1781 return;
1459 1782
1460 ((WT)w)->at += mn_now; 1783 ((WT)w)->at += mn_now;
1461 1784
1462 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1785 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1463 1786
1464 ev_start (EV_A_ (W)w, ++timercnt); 1787 ev_start (EV_A_ (W)w, ++timercnt);
1465 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1788 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1466 timers [timercnt - 1] = w; 1789 timers [timercnt - 1] = (WT)w;
1467 upheap ((WT *)timers, timercnt - 1); 1790 upheap (timers, timercnt - 1);
1468 1791
1469 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1792 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1470} 1793}
1471 1794
1472void 1795void noinline
1473ev_timer_stop (EV_P_ ev_timer *w) 1796ev_timer_stop (EV_P_ ev_timer *w)
1474{ 1797{
1475 ev_clear_pending (EV_A_ (W)w); 1798 clear_pending (EV_A_ (W)w);
1476 if (expect_false (!ev_is_active (w))) 1799 if (expect_false (!ev_is_active (w)))
1477 return; 1800 return;
1478 1801
1479 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1802 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1480 1803
1804 {
1805 int active = ((W)w)->active;
1806
1481 if (expect_true (((W)w)->active < timercnt--)) 1807 if (expect_true (--active < --timercnt))
1482 { 1808 {
1483 timers [((W)w)->active - 1] = timers [timercnt]; 1809 timers [active] = timers [timercnt];
1484 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1810 adjustheap (timers, timercnt, active);
1485 } 1811 }
1812 }
1486 1813
1487 ((WT)w)->at -= mn_now; 1814 ((WT)w)->at -= mn_now;
1488 1815
1489 ev_stop (EV_A_ (W)w); 1816 ev_stop (EV_A_ (W)w);
1490} 1817}
1491 1818
1492void 1819void noinline
1493ev_timer_again (EV_P_ ev_timer *w) 1820ev_timer_again (EV_P_ ev_timer *w)
1494{ 1821{
1495 if (ev_is_active (w)) 1822 if (ev_is_active (w))
1496 { 1823 {
1497 if (w->repeat) 1824 if (w->repeat)
1498 { 1825 {
1499 ((WT)w)->at = mn_now + w->repeat; 1826 ((WT)w)->at = mn_now + w->repeat;
1500 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1827 adjustheap (timers, timercnt, ((W)w)->active - 1);
1501 } 1828 }
1502 else 1829 else
1503 ev_timer_stop (EV_A_ w); 1830 ev_timer_stop (EV_A_ w);
1504 } 1831 }
1505 else if (w->repeat) 1832 else if (w->repeat)
… …
1508 ev_timer_start (EV_A_ w); 1835 ev_timer_start (EV_A_ w);
1509 } 1836 }
1510} 1837}
1511 1838
1512#if EV_PERIODIC_ENABLE 1839#if EV_PERIODIC_ENABLE
1513void 1840void noinline
1514ev_periodic_start (EV_P_ ev_periodic *w) 1841ev_periodic_start (EV_P_ ev_periodic *w)
1515{ 1842{
1516 if (expect_false (ev_is_active (w))) 1843 if (expect_false (ev_is_active (w)))
1517 return; 1844 return;
1518 1845
… …
1520 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1847 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1521 else if (w->interval) 1848 else if (w->interval)
1522 { 1849 {
1523 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1850 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1524 /* this formula differs from the one in periodic_reify because we do not always round up */ 1851 /* this formula differs from the one in periodic_reify because we do not always round up */
1525 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1852 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1526 } 1853 }
1854 else
1855 ((WT)w)->at = w->offset;
1527 1856
1528 ev_start (EV_A_ (W)w, ++periodiccnt); 1857 ev_start (EV_A_ (W)w, ++periodiccnt);
1529 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1858 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1530 periodics [periodiccnt - 1] = w; 1859 periodics [periodiccnt - 1] = (WT)w;
1531 upheap ((WT *)periodics, periodiccnt - 1); 1860 upheap (periodics, periodiccnt - 1);
1532 1861
1533 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1862 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1534} 1863}
1535 1864
1536void 1865void noinline
1537ev_periodic_stop (EV_P_ ev_periodic *w) 1866ev_periodic_stop (EV_P_ ev_periodic *w)
1538{ 1867{
1539 ev_clear_pending (EV_A_ (W)w); 1868 clear_pending (EV_A_ (W)w);
1540 if (expect_false (!ev_is_active (w))) 1869 if (expect_false (!ev_is_active (w)))
1541 return; 1870 return;
1542 1871
1543 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1872 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1544 1873
1874 {
1875 int active = ((W)w)->active;
1876
1545 if (expect_true (((W)w)->active < periodiccnt--)) 1877 if (expect_true (--active < --periodiccnt))
1546 { 1878 {
1547 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1879 periodics [active] = periodics [periodiccnt];
1548 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1880 adjustheap (periodics, periodiccnt, active);
1549 } 1881 }
1882 }
1550 1883
1551 ev_stop (EV_A_ (W)w); 1884 ev_stop (EV_A_ (W)w);
1552} 1885}
1553 1886
1554void 1887void noinline
1555ev_periodic_again (EV_P_ ev_periodic *w) 1888ev_periodic_again (EV_P_ ev_periodic *w)
1556{ 1889{
1557 /* TODO: use adjustheap and recalculation */ 1890 /* TODO: use adjustheap and recalculation */
1558 ev_periodic_stop (EV_A_ w); 1891 ev_periodic_stop (EV_A_ w);
1559 ev_periodic_start (EV_A_ w); 1892 ev_periodic_start (EV_A_ w);
1560} 1893}
1561#endif 1894#endif
1562 1895
1563void
1564ev_idle_start (EV_P_ ev_idle *w)
1565{
1566 if (expect_false (ev_is_active (w)))
1567 return;
1568
1569 ev_start (EV_A_ (W)w, ++idlecnt);
1570 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1571 idles [idlecnt - 1] = w;
1572}
1573
1574void
1575ev_idle_stop (EV_P_ ev_idle *w)
1576{
1577 ev_clear_pending (EV_A_ (W)w);
1578 if (expect_false (!ev_is_active (w)))
1579 return;
1580
1581 {
1582 int active = ((W)w)->active;
1583 idles [active - 1] = idles [--idlecnt];
1584 ((W)idles [active - 1])->active = active;
1585 }
1586
1587 ev_stop (EV_A_ (W)w);
1588}
1589
1590void
1591ev_prepare_start (EV_P_ ev_prepare *w)
1592{
1593 if (expect_false (ev_is_active (w)))
1594 return;
1595
1596 ev_start (EV_A_ (W)w, ++preparecnt);
1597 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1598 prepares [preparecnt - 1] = w;
1599}
1600
1601void
1602ev_prepare_stop (EV_P_ ev_prepare *w)
1603{
1604 ev_clear_pending (EV_A_ (W)w);
1605 if (expect_false (!ev_is_active (w)))
1606 return;
1607
1608 {
1609 int active = ((W)w)->active;
1610 prepares [active - 1] = prepares [--preparecnt];
1611 ((W)prepares [active - 1])->active = active;
1612 }
1613
1614 ev_stop (EV_A_ (W)w);
1615}
1616
1617void
1618ev_check_start (EV_P_ ev_check *w)
1619{
1620 if (expect_false (ev_is_active (w)))
1621 return;
1622
1623 ev_start (EV_A_ (W)w, ++checkcnt);
1624 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1625 checks [checkcnt - 1] = w;
1626}
1627
1628void
1629ev_check_stop (EV_P_ ev_check *w)
1630{
1631 ev_clear_pending (EV_A_ (W)w);
1632 if (expect_false (!ev_is_active (w)))
1633 return;
1634
1635 {
1636 int active = ((W)w)->active;
1637 checks [active - 1] = checks [--checkcnt];
1638 ((W)checks [active - 1])->active = active;
1639 }
1640
1641 ev_stop (EV_A_ (W)w);
1642}
1643
1644#ifndef SA_RESTART 1896#ifndef SA_RESTART
1645# define SA_RESTART 0 1897# define SA_RESTART 0
1646#endif 1898#endif
1647 1899
1648void 1900void noinline
1649ev_signal_start (EV_P_ ev_signal *w) 1901ev_signal_start (EV_P_ ev_signal *w)
1650{ 1902{
1651#if EV_MULTIPLICITY 1903#if EV_MULTIPLICITY
1652 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1904 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1653#endif 1905#endif
1654 if (expect_false (ev_is_active (w))) 1906 if (expect_false (ev_is_active (w)))
1655 return; 1907 return;
1656 1908
1657 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1909 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1658 1910
1911 evpipe_init (EV_A);
1912
1913 {
1914#ifndef _WIN32
1915 sigset_t full, prev;
1916 sigfillset (&full);
1917 sigprocmask (SIG_SETMASK, &full, &prev);
1918#endif
1919
1920 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1921
1922#ifndef _WIN32
1923 sigprocmask (SIG_SETMASK, &prev, 0);
1924#endif
1925 }
1926
1659 ev_start (EV_A_ (W)w, 1); 1927 ev_start (EV_A_ (W)w, 1);
1660 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1661 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1928 wlist_add (&signals [w->signum - 1].head, (WL)w);
1662 1929
1663 if (!((WL)w)->next) 1930 if (!((WL)w)->next)
1664 { 1931 {
1665#if _WIN32 1932#if _WIN32
1666 signal (w->signum, sighandler); 1933 signal (w->signum, sighandler);
… …
1672 sigaction (w->signum, &sa, 0); 1939 sigaction (w->signum, &sa, 0);
1673#endif 1940#endif
1674 } 1941 }
1675} 1942}
1676 1943
1677void 1944void noinline
1678ev_signal_stop (EV_P_ ev_signal *w) 1945ev_signal_stop (EV_P_ ev_signal *w)
1679{ 1946{
1680 ev_clear_pending (EV_A_ (W)w); 1947 clear_pending (EV_A_ (W)w);
1681 if (expect_false (!ev_is_active (w))) 1948 if (expect_false (!ev_is_active (w)))
1682 return; 1949 return;
1683 1950
1684 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1951 wlist_del (&signals [w->signum - 1].head, (WL)w);
1685 ev_stop (EV_A_ (W)w); 1952 ev_stop (EV_A_ (W)w);
1686 1953
1687 if (!signals [w->signum - 1].head) 1954 if (!signals [w->signum - 1].head)
1688 signal (w->signum, SIG_DFL); 1955 signal (w->signum, SIG_DFL);
1689} 1956}
… …
1696#endif 1963#endif
1697 if (expect_false (ev_is_active (w))) 1964 if (expect_false (ev_is_active (w)))
1698 return; 1965 return;
1699 1966
1700 ev_start (EV_A_ (W)w, 1); 1967 ev_start (EV_A_ (W)w, 1);
1701 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1968 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1702} 1969}
1703 1970
1704void 1971void
1705ev_child_stop (EV_P_ ev_child *w) 1972ev_child_stop (EV_P_ ev_child *w)
1706{ 1973{
1707 ev_clear_pending (EV_A_ (W)w); 1974 clear_pending (EV_A_ (W)w);
1708 if (expect_false (!ev_is_active (w))) 1975 if (expect_false (!ev_is_active (w)))
1709 return; 1976 return;
1710 1977
1711 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1978 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1712 ev_stop (EV_A_ (W)w); 1979 ev_stop (EV_A_ (W)w);
1713} 1980}
1714 1981
1715#if EV_EMBED_ENABLE
1716void noinline
1717ev_embed_sweep (EV_P_ ev_embed *w)
1718{
1719 ev_loop (w->loop, EVLOOP_NONBLOCK);
1720}
1721
1722static void
1723embed_cb (EV_P_ ev_io *io, int revents)
1724{
1725 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1726
1727 if (ev_cb (w))
1728 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1729 else
1730 ev_embed_sweep (loop, w);
1731}
1732
1733void
1734ev_embed_start (EV_P_ ev_embed *w)
1735{
1736 if (expect_false (ev_is_active (w)))
1737 return;
1738
1739 {
1740 struct ev_loop *loop = w->loop;
1741 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1742 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1743 }
1744
1745 ev_set_priority (&w->io, ev_priority (w));
1746 ev_io_start (EV_A_ &w->io);
1747
1748 ev_start (EV_A_ (W)w, 1);
1749}
1750
1751void
1752ev_embed_stop (EV_P_ ev_embed *w)
1753{
1754 ev_clear_pending (EV_A_ (W)w);
1755 if (expect_false (!ev_is_active (w)))
1756 return;
1757
1758 ev_io_stop (EV_A_ &w->io);
1759
1760 ev_stop (EV_A_ (W)w);
1761}
1762#endif
1763
1764#if EV_STAT_ENABLE 1982#if EV_STAT_ENABLE
1765 1983
1766# ifdef _WIN32 1984# ifdef _WIN32
1985# undef lstat
1767# define lstat(a,b) stat(a,b) 1986# define lstat(a,b) _stati64 (a,b)
1768# endif 1987# endif
1769 1988
1770#define DEF_STAT_INTERVAL 5.0074891 1989#define DEF_STAT_INTERVAL 5.0074891
1771#define MIN_STAT_INTERVAL 0.1074891 1990#define MIN_STAT_INTERVAL 0.1074891
1991
1992static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1993
1994#if EV_USE_INOTIFY
1995# define EV_INOTIFY_BUFSIZE 8192
1996
1997static void noinline
1998infy_add (EV_P_ ev_stat *w)
1999{
2000 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);
2001
2002 if (w->wd < 0)
2003 {
2004 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2005
2006 /* monitor some parent directory for speedup hints */
2007 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2008 {
2009 char path [4096];
2010 strcpy (path, w->path);
2011
2012 do
2013 {
2014 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2015 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2016
2017 char *pend = strrchr (path, '/');
2018
2019 if (!pend)
2020 break; /* whoops, no '/', complain to your admin */
2021
2022 *pend = 0;
2023 w->wd = inotify_add_watch (fs_fd, path, mask);
2024 }
2025 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2026 }
2027 }
2028 else
2029 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2030
2031 if (w->wd >= 0)
2032 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2033}
2034
2035static void noinline
2036infy_del (EV_P_ ev_stat *w)
2037{
2038 int slot;
2039 int wd = w->wd;
2040
2041 if (wd < 0)
2042 return;
2043
2044 w->wd = -2;
2045 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
2046 wlist_del (&fs_hash [slot].head, (WL)w);
2047
2048 /* remove this watcher, if others are watching it, they will rearm */
2049 inotify_rm_watch (fs_fd, wd);
2050}
2051
2052static void noinline
2053infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2054{
2055 if (slot < 0)
2056 /* overflow, need to check for all hahs slots */
2057 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2058 infy_wd (EV_A_ slot, wd, ev);
2059 else
2060 {
2061 WL w_;
2062
2063 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
2064 {
2065 ev_stat *w = (ev_stat *)w_;
2066 w_ = w_->next; /* lets us remove this watcher and all before it */
2067
2068 if (w->wd == wd || wd == -1)
2069 {
2070 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2071 {
2072 w->wd = -1;
2073 infy_add (EV_A_ w); /* re-add, no matter what */
2074 }
2075
2076 stat_timer_cb (EV_A_ &w->timer, 0);
2077 }
2078 }
2079 }
2080}
2081
2082static void
2083infy_cb (EV_P_ ev_io *w, int revents)
2084{
2085 char buf [EV_INOTIFY_BUFSIZE];
2086 struct inotify_event *ev = (struct inotify_event *)buf;
2087 int ofs;
2088 int len = read (fs_fd, buf, sizeof (buf));
2089
2090 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2091 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2092}
2093
2094void inline_size
2095infy_init (EV_P)
2096{
2097 if (fs_fd != -2)
2098 return;
2099
2100 fs_fd = inotify_init ();
2101
2102 if (fs_fd >= 0)
2103 {
2104 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2105 ev_set_priority (&fs_w, EV_MAXPRI);
2106 ev_io_start (EV_A_ &fs_w);
2107 }
2108}
2109
2110void inline_size
2111infy_fork (EV_P)
2112{
2113 int slot;
2114
2115 if (fs_fd < 0)
2116 return;
2117
2118 close (fs_fd);
2119 fs_fd = inotify_init ();
2120
2121 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2122 {
2123 WL w_ = fs_hash [slot].head;
2124 fs_hash [slot].head = 0;
2125
2126 while (w_)
2127 {
2128 ev_stat *w = (ev_stat *)w_;
2129 w_ = w_->next; /* lets us add this watcher */
2130
2131 w->wd = -1;
2132
2133 if (fs_fd >= 0)
2134 infy_add (EV_A_ w); /* re-add, no matter what */
2135 else
2136 ev_timer_start (EV_A_ &w->timer);
2137 }
2138
2139 }
2140}
2141
2142#endif
1772 2143
1773void 2144void
1774ev_stat_stat (EV_P_ ev_stat *w) 2145ev_stat_stat (EV_P_ ev_stat *w)
1775{ 2146{
1776 if (lstat (w->path, &w->attr) < 0) 2147 if (lstat (w->path, &w->attr) < 0)
1777 w->attr.st_nlink = 0; 2148 w->attr.st_nlink = 0;
1778 else if (!w->attr.st_nlink) 2149 else if (!w->attr.st_nlink)
1779 w->attr.st_nlink = 1; 2150 w->attr.st_nlink = 1;
1780} 2151}
1781 2152
1782static void 2153static void noinline
1783stat_timer_cb (EV_P_ ev_timer *w_, int revents) 2154stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1784{ 2155{
1785 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 2156 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1786 2157
1787 /* we copy this here each the time so that */ 2158 /* we copy this here each the time so that */
1788 /* prev has the old value when the callback gets invoked */ 2159 /* prev has the old value when the callback gets invoked */
1789 w->prev = w->attr; 2160 w->prev = w->attr;
1790 ev_stat_stat (EV_A_ w); 2161 ev_stat_stat (EV_A_ w);
1791 2162
1792 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) 2163 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2164 if (
2165 w->prev.st_dev != w->attr.st_dev
2166 || w->prev.st_ino != w->attr.st_ino
2167 || w->prev.st_mode != w->attr.st_mode
2168 || w->prev.st_nlink != w->attr.st_nlink
2169 || w->prev.st_uid != w->attr.st_uid
2170 || w->prev.st_gid != w->attr.st_gid
2171 || w->prev.st_rdev != w->attr.st_rdev
2172 || w->prev.st_size != w->attr.st_size
2173 || w->prev.st_atime != w->attr.st_atime
2174 || w->prev.st_mtime != w->attr.st_mtime
2175 || w->prev.st_ctime != w->attr.st_ctime
2176 ) {
2177 #if EV_USE_INOTIFY
2178 infy_del (EV_A_ w);
2179 infy_add (EV_A_ w);
2180 ev_stat_stat (EV_A_ w); /* avoid race... */
2181 #endif
2182
1793 ev_feed_event (EV_A_ w, EV_STAT); 2183 ev_feed_event (EV_A_ w, EV_STAT);
2184 }
1794} 2185}
1795 2186
1796void 2187void
1797ev_stat_start (EV_P_ ev_stat *w) 2188ev_stat_start (EV_P_ ev_stat *w)
1798{ 2189{
… …
1808 if (w->interval < MIN_STAT_INTERVAL) 2199 if (w->interval < MIN_STAT_INTERVAL)
1809 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; 2200 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1810 2201
1811 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 2202 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1812 ev_set_priority (&w->timer, ev_priority (w)); 2203 ev_set_priority (&w->timer, ev_priority (w));
2204
2205#if EV_USE_INOTIFY
2206 infy_init (EV_A);
2207
2208 if (fs_fd >= 0)
2209 infy_add (EV_A_ w);
2210 else
2211#endif
1813 ev_timer_start (EV_A_ &w->timer); 2212 ev_timer_start (EV_A_ &w->timer);
1814 2213
1815 ev_start (EV_A_ (W)w, 1); 2214 ev_start (EV_A_ (W)w, 1);
1816} 2215}
1817 2216
1818void 2217void
1819ev_stat_stop (EV_P_ ev_stat *w) 2218ev_stat_stop (EV_P_ ev_stat *w)
1820{ 2219{
1821 ev_clear_pending (EV_A_ (W)w); 2220 clear_pending (EV_A_ (W)w);
1822 if (expect_false (!ev_is_active (w))) 2221 if (expect_false (!ev_is_active (w)))
1823 return; 2222 return;
1824 2223
2224#if EV_USE_INOTIFY
2225 infy_del (EV_A_ w);
2226#endif
1825 ev_timer_stop (EV_A_ &w->timer); 2227 ev_timer_stop (EV_A_ &w->timer);
1826 2228
1827 ev_stop (EV_A_ (W)w); 2229 ev_stop (EV_A_ (W)w);
2230}
2231#endif
2232
2233#if EV_IDLE_ENABLE
2234void
2235ev_idle_start (EV_P_ ev_idle *w)
2236{
2237 if (expect_false (ev_is_active (w)))
2238 return;
2239
2240 pri_adjust (EV_A_ (W)w);
2241
2242 {
2243 int active = ++idlecnt [ABSPRI (w)];
2244
2245 ++idleall;
2246 ev_start (EV_A_ (W)w, active);
2247
2248 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2249 idles [ABSPRI (w)][active - 1] = w;
2250 }
2251}
2252
2253void
2254ev_idle_stop (EV_P_ ev_idle *w)
2255{
2256 clear_pending (EV_A_ (W)w);
2257 if (expect_false (!ev_is_active (w)))
2258 return;
2259
2260 {
2261 int active = ((W)w)->active;
2262
2263 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2264 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2265
2266 ev_stop (EV_A_ (W)w);
2267 --idleall;
2268 }
2269}
2270#endif
2271
2272void
2273ev_prepare_start (EV_P_ ev_prepare *w)
2274{
2275 if (expect_false (ev_is_active (w)))
2276 return;
2277
2278 ev_start (EV_A_ (W)w, ++preparecnt);
2279 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2280 prepares [preparecnt - 1] = w;
2281}
2282
2283void
2284ev_prepare_stop (EV_P_ ev_prepare *w)
2285{
2286 clear_pending (EV_A_ (W)w);
2287 if (expect_false (!ev_is_active (w)))
2288 return;
2289
2290 {
2291 int active = ((W)w)->active;
2292 prepares [active - 1] = prepares [--preparecnt];
2293 ((W)prepares [active - 1])->active = active;
2294 }
2295
2296 ev_stop (EV_A_ (W)w);
2297}
2298
2299void
2300ev_check_start (EV_P_ ev_check *w)
2301{
2302 if (expect_false (ev_is_active (w)))
2303 return;
2304
2305 ev_start (EV_A_ (W)w, ++checkcnt);
2306 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2307 checks [checkcnt - 1] = w;
2308}
2309
2310void
2311ev_check_stop (EV_P_ ev_check *w)
2312{
2313 clear_pending (EV_A_ (W)w);
2314 if (expect_false (!ev_is_active (w)))
2315 return;
2316
2317 {
2318 int active = ((W)w)->active;
2319 checks [active - 1] = checks [--checkcnt];
2320 ((W)checks [active - 1])->active = active;
2321 }
2322
2323 ev_stop (EV_A_ (W)w);
2324}
2325
2326#if EV_EMBED_ENABLE
2327void noinline
2328ev_embed_sweep (EV_P_ ev_embed *w)
2329{
2330 ev_loop (w->other, EVLOOP_NONBLOCK);
2331}
2332
2333static void
2334embed_io_cb (EV_P_ ev_io *io, int revents)
2335{
2336 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2337
2338 if (ev_cb (w))
2339 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2340 else
2341 ev_loop (w->other, EVLOOP_NONBLOCK);
2342}
2343
2344static void
2345embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2346{
2347 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2348
2349 {
2350 struct ev_loop *loop = w->other;
2351
2352 while (fdchangecnt)
2353 {
2354 fd_reify (EV_A);
2355 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2356 }
2357 }
2358}
2359
2360#if 0
2361static void
2362embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2363{
2364 ev_idle_stop (EV_A_ idle);
2365}
2366#endif
2367
2368void
2369ev_embed_start (EV_P_ ev_embed *w)
2370{
2371 if (expect_false (ev_is_active (w)))
2372 return;
2373
2374 {
2375 struct ev_loop *loop = w->other;
2376 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2377 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2378 }
2379
2380 ev_set_priority (&w->io, ev_priority (w));
2381 ev_io_start (EV_A_ &w->io);
2382
2383 ev_prepare_init (&w->prepare, embed_prepare_cb);
2384 ev_set_priority (&w->prepare, EV_MINPRI);
2385 ev_prepare_start (EV_A_ &w->prepare);
2386
2387 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2388
2389 ev_start (EV_A_ (W)w, 1);
2390}
2391
2392void
2393ev_embed_stop (EV_P_ ev_embed *w)
2394{
2395 clear_pending (EV_A_ (W)w);
2396 if (expect_false (!ev_is_active (w)))
2397 return;
2398
2399 ev_io_stop (EV_A_ &w->io);
2400 ev_prepare_stop (EV_A_ &w->prepare);
2401
2402 ev_stop (EV_A_ (W)w);
2403}
2404#endif
2405
2406#if EV_FORK_ENABLE
2407void
2408ev_fork_start (EV_P_ ev_fork *w)
2409{
2410 if (expect_false (ev_is_active (w)))
2411 return;
2412
2413 ev_start (EV_A_ (W)w, ++forkcnt);
2414 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2415 forks [forkcnt - 1] = w;
2416}
2417
2418void
2419ev_fork_stop (EV_P_ ev_fork *w)
2420{
2421 clear_pending (EV_A_ (W)w);
2422 if (expect_false (!ev_is_active (w)))
2423 return;
2424
2425 {
2426 int active = ((W)w)->active;
2427 forks [active - 1] = forks [--forkcnt];
2428 ((W)forks [active - 1])->active = active;
2429 }
2430
2431 ev_stop (EV_A_ (W)w);
2432}
2433#endif
2434
2435#if EV_ASYNC_ENABLE
2436void
2437ev_async_start (EV_P_ ev_async *w)
2438{
2439 if (expect_false (ev_is_active (w)))
2440 return;
2441
2442 evpipe_init (EV_A);
2443
2444 ev_start (EV_A_ (W)w, ++asynccnt);
2445 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2446 asyncs [asynccnt - 1] = w;
2447}
2448
2449void
2450ev_async_stop (EV_P_ ev_async *w)
2451{
2452 clear_pending (EV_A_ (W)w);
2453 if (expect_false (!ev_is_active (w)))
2454 return;
2455
2456 {
2457 int active = ((W)w)->active;
2458 asyncs [active - 1] = asyncs [--asynccnt];
2459 ((W)asyncs [active - 1])->active = active;
2460 }
2461
2462 ev_stop (EV_A_ (W)w);
2463}
2464
2465void
2466ev_async_send (EV_P_ ev_async *w)
2467{
2468 w->sent = 1;
2469 evpipe_write (EV_A_ 0, 1);
1828} 2470}
1829#endif 2471#endif
1830 2472
1831/*****************************************************************************/ 2473/*****************************************************************************/
1832 2474
… …
1890 ev_timer_set (&once->to, timeout, 0.); 2532 ev_timer_set (&once->to, timeout, 0.);
1891 ev_timer_start (EV_A_ &once->to); 2533 ev_timer_start (EV_A_ &once->to);
1892 } 2534 }
1893} 2535}
1894 2536
2537#if EV_MULTIPLICITY
2538 #include "ev_wrap.h"
2539#endif
2540
1895#ifdef __cplusplus 2541#ifdef __cplusplus
1896} 2542}
1897#endif 2543#endif
1898 2544

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