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Comparing libev/ev.c (file contents):
Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC vs.
Revision 1.235 by root, Wed May 7 14:45:17 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
35 43
44/* this big block deduces configuration from config.h */
36#ifndef EV_STANDALONE 45#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H 46# ifdef EV_CONFIG_H
38# include EV_CONFIG_H 47# include EV_CONFIG_H
39# else 48# else
40# include "config.h" 49# include "config.h"
… …
51# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0 61# define EV_USE_MONOTONIC 0
53# endif 62# endif
54# ifndef EV_USE_REALTIME 63# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0 64# define EV_USE_REALTIME 0
65# endif
66# endif
67
68# ifndef EV_USE_NANOSLEEP
69# if HAVE_NANOSLEEP
70# define EV_USE_NANOSLEEP 1
71# else
72# define EV_USE_NANOSLEEP 0
56# endif 73# endif
57# endif 74# endif
58 75
59# ifndef EV_USE_SELECT 76# ifndef EV_USE_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H 77# if HAVE_SELECT && HAVE_SYS_SELECT_H
… …
102# else 119# else
103# define EV_USE_INOTIFY 0 120# define EV_USE_INOTIFY 0
104# endif 121# endif
105# endif 122# endif
106 123
124# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1
127# else
128# define EV_USE_EVENTFD 0
129# endif
130# endif
131
107#endif 132#endif
108 133
109#include <math.h> 134#include <math.h>
110#include <stdlib.h> 135#include <stdlib.h>
111#include <fcntl.h> 136#include <fcntl.h>
… …
136# ifndef EV_SELECT_IS_WINSOCKET 161# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1 162# define EV_SELECT_IS_WINSOCKET 1
138# endif 163# endif
139#endif 164#endif
140 165
141/**/ 166/* this block tries to deduce configuration from header-defined symbols and defaults */
142 167
143#ifndef EV_USE_MONOTONIC 168#ifndef EV_USE_MONOTONIC
144# define EV_USE_MONOTONIC 0 169# define EV_USE_MONOTONIC 0
145#endif 170#endif
146 171
147#ifndef EV_USE_REALTIME 172#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0 173# define EV_USE_REALTIME 0
174#endif
175
176#ifndef EV_USE_NANOSLEEP
177# define EV_USE_NANOSLEEP 0
149#endif 178#endif
150 179
151#ifndef EV_USE_SELECT 180#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1 181# define EV_USE_SELECT 1
153#endif 182#endif
… …
159# define EV_USE_POLL 1 188# define EV_USE_POLL 1
160# endif 189# endif
161#endif 190#endif
162 191
163#ifndef EV_USE_EPOLL 192#ifndef EV_USE_EPOLL
193# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
194# define EV_USE_EPOLL 1
195# else
164# define EV_USE_EPOLL 0 196# define EV_USE_EPOLL 0
197# endif
165#endif 198#endif
166 199
167#ifndef EV_USE_KQUEUE 200#ifndef EV_USE_KQUEUE
168# define EV_USE_KQUEUE 0 201# define EV_USE_KQUEUE 0
169#endif 202#endif
… …
171#ifndef EV_USE_PORT 204#ifndef EV_USE_PORT
172# define EV_USE_PORT 0 205# define EV_USE_PORT 0
173#endif 206#endif
174 207
175#ifndef EV_USE_INOTIFY 208#ifndef EV_USE_INOTIFY
209# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
210# define EV_USE_INOTIFY 1
211# else
176# define EV_USE_INOTIFY 0 212# define EV_USE_INOTIFY 0
213# endif
177#endif 214#endif
178 215
179#ifndef EV_PID_HASHSIZE 216#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL 217# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1 218# define EV_PID_HASHSIZE 1
… …
190# else 227# else
191# define EV_INOTIFY_HASHSIZE 16 228# define EV_INOTIFY_HASHSIZE 16
192# endif 229# endif
193#endif 230#endif
194 231
195/**/ 232#ifndef EV_USE_EVENTFD
233# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
234# define EV_USE_EVENTFD 1
235# else
236# define EV_USE_EVENTFD 0
237# endif
238#endif
239
240/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196 241
197#ifndef CLOCK_MONOTONIC 242#ifndef CLOCK_MONOTONIC
198# undef EV_USE_MONOTONIC 243# undef EV_USE_MONOTONIC
199# define EV_USE_MONOTONIC 0 244# define EV_USE_MONOTONIC 0
200#endif 245#endif
… …
202#ifndef CLOCK_REALTIME 247#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME 248# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0 249# define EV_USE_REALTIME 0
205#endif 250#endif
206 251
252#if !EV_STAT_ENABLE
253# undef EV_USE_INOTIFY
254# define EV_USE_INOTIFY 0
255#endif
256
257#if !EV_USE_NANOSLEEP
258# ifndef _WIN32
259# include <sys/select.h>
260# endif
261#endif
262
263#if EV_USE_INOTIFY
264# include <sys/inotify.h>
265#endif
266
207#if EV_SELECT_IS_WINSOCKET 267#if EV_SELECT_IS_WINSOCKET
208# include <winsock.h> 268# include <winsock.h>
209#endif 269#endif
210 270
211#if !EV_STAT_ENABLE 271#if EV_USE_EVENTFD
212# define EV_USE_INOTIFY 0 272/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273# include <stdint.h>
274# ifdef __cplusplus
275extern "C" {
213#endif 276# endif
214 277int eventfd (unsigned int initval, int flags);
215#if EV_USE_INOTIFY 278# ifdef __cplusplus
216# include <sys/inotify.h> 279}
280# endif
217#endif 281#endif
218 282
219/**/ 283/**/
284
285/*
286 * This is used to avoid floating point rounding problems.
287 * It is added to ev_rt_now when scheduling periodics
288 * to ensure progress, time-wise, even when rounding
289 * errors are against us.
290 * This value is good at least till the year 4000.
291 * Better solutions welcome.
292 */
293#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220 294
221#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 295#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) */ 296#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 */ 297/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
224 298
225#if __GNUC__ >= 3 299#if __GNUC__ >= 4
226# define expect(expr,value) __builtin_expect ((expr),(value)) 300# 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)) 301# 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 302#else
236# define expect(expr,value) (expr) 303# define expect(expr,value) (expr)
237# define inline_speed static
238# define inline_size static
239# define noinline 304# define noinline
305# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
306# define inline
307# endif
240#endif 308#endif
241 309
242#define expect_false(expr) expect ((expr) != 0, 0) 310#define expect_false(expr) expect ((expr) != 0, 0)
243#define expect_true(expr) expect ((expr) != 0, 1) 311#define expect_true(expr) expect ((expr) != 0, 1)
312#define inline_size static inline
313
314#if EV_MINIMAL
315# define inline_speed static noinline
316#else
317# define inline_speed static inline
318#endif
244 319
245#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 320#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246#define ABSPRI(w) ((w)->priority - EV_MINPRI) 321#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247 322
248#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 323#define EMPTY /* required for microsofts broken pseudo-c compiler */
249#define EMPTY2(a,b) /* used to suppress some warnings */ 324#define EMPTY2(a,b) /* used to suppress some warnings */
250 325
251typedef ev_watcher *W; 326typedef ev_watcher *W;
252typedef ev_watcher_list *WL; 327typedef ev_watcher_list *WL;
253typedef ev_watcher_time *WT; 328typedef ev_watcher_time *WT;
254 329
330#define ev_active(w) ((W)(w))->active
331#define ev_at(w) ((WT)(w))->at
332
333#if EV_USE_MONOTONIC
334/* sig_atomic_t is used to avoid per-thread variables or locking but still */
335/* giving it a reasonably high chance of working on typical architetcures */
255static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 336static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
337#endif
256 338
257#ifdef _WIN32 339#ifdef _WIN32
258# include "ev_win32.c" 340# include "ev_win32.c"
259#endif 341#endif
260 342
… …
281 perror (msg); 363 perror (msg);
282 abort (); 364 abort ();
283 } 365 }
284} 366}
285 367
368static void *
369ev_realloc_emul (void *ptr, long size)
370{
371 /* some systems, notably openbsd and darwin, fail to properly
372 * implement realloc (x, 0) (as required by both ansi c-98 and
373 * the single unix specification, so work around them here.
374 */
375
376 if (size)
377 return realloc (ptr, size);
378
379 free (ptr);
380 return 0;
381}
382
286static void *(*alloc)(void *ptr, long size); 383static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
287 384
288void 385void
289ev_set_allocator (void *(*cb)(void *ptr, long size)) 386ev_set_allocator (void *(*cb)(void *ptr, long size))
290{ 387{
291 alloc = cb; 388 alloc = cb;
292} 389}
293 390
294inline_speed void * 391inline_speed void *
295ev_realloc (void *ptr, long size) 392ev_realloc (void *ptr, long size)
296{ 393{
297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 394 ptr = alloc (ptr, size);
298 395
299 if (!ptr && size) 396 if (!ptr && size)
300 { 397 {
301 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 398 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
302 abort (); 399 abort ();
… …
396{ 493{
397 return ev_rt_now; 494 return ev_rt_now;
398} 495}
399#endif 496#endif
400 497
401#define array_roundsize(type,n) (((n) | 4) & ~3) 498void
499ev_sleep (ev_tstamp delay)
500{
501 if (delay > 0.)
502 {
503#if EV_USE_NANOSLEEP
504 struct timespec ts;
505
506 ts.tv_sec = (time_t)delay;
507 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
508
509 nanosleep (&ts, 0);
510#elif defined(_WIN32)
511 Sleep ((unsigned long)(delay * 1e3));
512#else
513 struct timeval tv;
514
515 tv.tv_sec = (time_t)delay;
516 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
517
518 select (0, 0, 0, 0, &tv);
519#endif
520 }
521}
522
523/*****************************************************************************/
524
525#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
526
527int inline_size
528array_nextsize (int elem, int cur, int cnt)
529{
530 int ncur = cur + 1;
531
532 do
533 ncur <<= 1;
534 while (cnt > ncur);
535
536 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
537 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
538 {
539 ncur *= elem;
540 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
541 ncur = ncur - sizeof (void *) * 4;
542 ncur /= elem;
543 }
544
545 return ncur;
546}
547
548static noinline void *
549array_realloc (int elem, void *base, int *cur, int cnt)
550{
551 *cur = array_nextsize (elem, *cur, cnt);
552 return ev_realloc (base, elem * *cur);
553}
402 554
403#define array_needsize(type,base,cur,cnt,init) \ 555#define array_needsize(type,base,cur,cnt,init) \
404 if (expect_false ((cnt) > cur)) \ 556 if (expect_false ((cnt) > (cur))) \
405 { \ 557 { \
406 int newcnt = cur; \ 558 int ocur_ = (cur); \
407 do \ 559 (base) = (type *)array_realloc \
408 { \ 560 (sizeof (type), (base), &(cur), (cnt)); \
409 newcnt = array_roundsize (type, newcnt << 1); \ 561 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 } 562 }
417 563
564#if 0
418#define array_slim(type,stem) \ 565#define array_slim(type,stem) \
419 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 566 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420 { \ 567 { \
421 stem ## max = array_roundsize (stem ## cnt >> 1); \ 568 stem ## max = array_roundsize (stem ## cnt >> 1); \
422 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 569 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
423 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 570 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
424 } 571 }
572#endif
425 573
426#define array_free(stem, idx) \ 574#define array_free(stem, idx) \
427 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 575 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428 576
429/*****************************************************************************/ 577/*****************************************************************************/
430 578
431void noinline 579void noinline
432ev_feed_event (EV_P_ void *w, int revents) 580ev_feed_event (EV_P_ void *w, int revents)
433{ 581{
434 W w_ = (W)w; 582 W w_ = (W)w;
583 int pri = ABSPRI (w_);
435 584
436 if (expect_false (w_->pending)) 585 if (expect_false (w_->pending))
586 pendings [pri][w_->pending - 1].events |= revents;
587 else
437 { 588 {
589 w_->pending = ++pendingcnt [pri];
590 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
591 pendings [pri][w_->pending - 1].w = w_;
438 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 592 pendings [pri][w_->pending - 1].events = revents;
439 return;
440 } 593 }
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} 594}
447 595
448void inline_size 596void inline_speed
449queue_events (EV_P_ W *events, int eventcnt, int type) 597queue_events (EV_P_ W *events, int eventcnt, int type)
450{ 598{
451 int i; 599 int i;
452 600
453 for (i = 0; i < eventcnt; ++i) 601 for (i = 0; i < eventcnt; ++i)
… …
485} 633}
486 634
487void 635void
488ev_feed_fd_event (EV_P_ int fd, int revents) 636ev_feed_fd_event (EV_P_ int fd, int revents)
489{ 637{
638 if (fd >= 0 && fd < anfdmax)
490 fd_event (EV_A_ fd, revents); 639 fd_event (EV_A_ fd, revents);
491} 640}
492 641
493void inline_size 642void inline_size
494fd_reify (EV_P) 643fd_reify (EV_P)
495{ 644{
… …
499 { 648 {
500 int fd = fdchanges [i]; 649 int fd = fdchanges [i];
501 ANFD *anfd = anfds + fd; 650 ANFD *anfd = anfds + fd;
502 ev_io *w; 651 ev_io *w;
503 652
504 int events = 0; 653 unsigned char events = 0;
505 654
506 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 655 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
507 events |= w->events; 656 events |= (unsigned char)w->events;
508 657
509#if EV_SELECT_IS_WINSOCKET 658#if EV_SELECT_IS_WINSOCKET
510 if (events) 659 if (events)
511 { 660 {
512 unsigned long argp; 661 unsigned long argp;
662 #ifdef EV_FD_TO_WIN32_HANDLE
663 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
664 #else
513 anfd->handle = _get_osfhandle (fd); 665 anfd->handle = _get_osfhandle (fd);
666 #endif
514 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 667 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515 } 668 }
516#endif 669#endif
517 670
671 {
672 unsigned char o_events = anfd->events;
673 unsigned char o_reify = anfd->reify;
674
518 anfd->reify = 0; 675 anfd->reify = 0;
519
520 backend_modify (EV_A_ fd, anfd->events, events);
521 anfd->events = events; 676 anfd->events = events;
677
678 if (o_events != events || o_reify & EV_IOFDSET)
679 backend_modify (EV_A_ fd, o_events, events);
680 }
522 } 681 }
523 682
524 fdchangecnt = 0; 683 fdchangecnt = 0;
525} 684}
526 685
527void inline_size 686void inline_size
528fd_change (EV_P_ int fd) 687fd_change (EV_P_ int fd, int flags)
529{ 688{
530 if (expect_false (anfds [fd].reify)) 689 unsigned char reify = anfds [fd].reify;
531 return;
532
533 anfds [fd].reify = 1; 690 anfds [fd].reify |= flags;
534 691
692 if (expect_true (!reify))
693 {
535 ++fdchangecnt; 694 ++fdchangecnt;
536 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 695 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537 fdchanges [fdchangecnt - 1] = fd; 696 fdchanges [fdchangecnt - 1] = fd;
697 }
538} 698}
539 699
540void inline_speed 700void inline_speed
541fd_kill (EV_P_ int fd) 701fd_kill (EV_P_ int fd)
542{ 702{
… …
593 753
594 for (fd = 0; fd < anfdmax; ++fd) 754 for (fd = 0; fd < anfdmax; ++fd)
595 if (anfds [fd].events) 755 if (anfds [fd].events)
596 { 756 {
597 anfds [fd].events = 0; 757 anfds [fd].events = 0;
598 fd_change (EV_A_ fd); 758 fd_change (EV_A_ fd, EV_IOFDSET | 1);
599 } 759 }
600} 760}
601 761
602/*****************************************************************************/ 762/*****************************************************************************/
603 763
764/*
765 * at the moment we allow libev the luxury of two heaps,
766 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
767 * which is more cache-efficient.
768 * the difference is about 5% with 50000+ watchers.
769 */
770#define USE_4HEAP !EV_MINIMAL
771#if USE_4HEAP
772
773#define HEAP0 3 /* index of first element in heap */
774
775/* towards the root */
604void inline_speed 776void inline_speed
605upheap (WT *heap, int k) 777upheap (WT *heap, int k)
606{ 778{
607 WT w = heap [k]; 779 WT w = heap [k];
608 780
609 while (k && heap [k >> 1]->at > w->at) 781 for (;;)
610 { 782 {
783 int p = ((k - HEAP0 - 1) / 4) + HEAP0;
784
785 if (p >= HEAP0 || heap [p]->at <= w->at)
786 break;
787
611 heap [k] = heap [k >> 1]; 788 heap [k] = heap [p];
612 ((W)heap [k])->active = k + 1; 789 ev_active (heap [k]) = k;
613 k >>= 1; 790 k = p;
614 } 791 }
615 792
616 heap [k] = w; 793 heap [k] = w;
617 ((W)heap [k])->active = k + 1; 794 ev_active (heap [k]) = k;
618
619} 795}
620 796
797/* away from the root */
621void inline_speed 798void inline_speed
622downheap (WT *heap, int N, int k) 799downheap (WT *heap, int N, int k)
623{ 800{
624 WT w = heap [k]; 801 WT w = heap [k];
802 WT *E = heap + N + HEAP0;
625 803
626 while (k < (N >> 1)) 804 for (;;)
627 { 805 {
628 int j = k << 1; 806 ev_tstamp minat;
807 WT *minpos;
808 WT *pos = heap + 4 * (k - HEAP0) + HEAP0;
629 809
630 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 810 // find minimum child
811 if (expect_true (pos +3 < E))
631 ++j; 812 {
813 (minpos = pos + 0), (minat = (*minpos)->at);
814 if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at);
815 if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at);
816 if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at);
817 }
818 else
819 {
820 if (pos >= E)
821 break;
632 822
823 (minpos = pos + 0), (minat = (*minpos)->at);
824 if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at);
825 if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at);
826 if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at);
827 }
828
633 if (w->at <= heap [j]->at) 829 if (w->at <= minat)
634 break; 830 break;
635 831
636 heap [k] = heap [j]; 832 ev_active (*minpos) = k;
637 ((W)heap [k])->active = k + 1; 833 heap [k] = *minpos;
638 k = j; 834
835 k = minpos - heap;
639 } 836 }
640 837
641 heap [k] = w; 838 heap [k] = w;
839 ev_active (heap [k]) = k;
840}
841
842#else // 4HEAP
843
844#define HEAP0 1
845
846/* towards the root */
847void inline_speed
848upheap (WT *heap, int k)
849{
850 WT w = heap [k];
851
852 for (;;)
853 {
854 int p = k >> 1;
855
856 /* maybe we could use a dummy element at heap [0]? */
857 if (!p || heap [p]->at <= w->at)
858 break;
859
860 heap [k] = heap [p];
861 ev_active (heap [k]) = k;
862 k = p;
863 }
864
865 heap [k] = w;
866 ev_active (heap [k]) = k;
867}
868
869/* away from the root */
870void inline_speed
871downheap (WT *heap, int N, int k)
872{
873 WT w = heap [k];
874
875 for (;;)
876 {
877 int c = k << 1;
878
879 if (c > N)
880 break;
881
882 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
883 ? 1 : 0;
884
885 if (w->at <= heap [c]->at)
886 break;
887
888 heap [k] = heap [c];
642 ((W)heap [k])->active = k + 1; 889 ((W)heap [k])->active = k;
890
891 k = c;
892 }
893
894 heap [k] = w;
895 ev_active (heap [k]) = k;
643} 896}
897#endif
644 898
645void inline_size 899void inline_size
646adjustheap (WT *heap, int N, int k) 900adjustheap (WT *heap, int N, int k)
647{ 901{
648 upheap (heap, k); 902 upheap (heap, k);
… …
652/*****************************************************************************/ 906/*****************************************************************************/
653 907
654typedef struct 908typedef struct
655{ 909{
656 WL head; 910 WL head;
657 sig_atomic_t volatile gotsig; 911 EV_ATOMIC_T gotsig;
658} ANSIG; 912} ANSIG;
659 913
660static ANSIG *signals; 914static ANSIG *signals;
661static int signalmax; 915static int signalmax;
662 916
663static int sigpipe [2]; 917static EV_ATOMIC_T gotsig;
664static sig_atomic_t volatile gotsig;
665static ev_io sigev;
666 918
667void inline_size 919void inline_size
668signals_init (ANSIG *base, int count) 920signals_init (ANSIG *base, int count)
669{ 921{
670 while (count--) 922 while (count--)
… …
674 926
675 ++base; 927 ++base;
676 } 928 }
677} 929}
678 930
679static void 931/*****************************************************************************/
680sighandler (int signum)
681{
682#if _WIN32
683 signal (signum, sighandler);
684#endif
685 932
686 signals [signum - 1].gotsig = 1;
687
688 if (!gotsig)
689 {
690 int old_errno = errno;
691 gotsig = 1;
692 write (sigpipe [1], &signum, 1);
693 errno = old_errno;
694 }
695}
696
697void noinline
698ev_feed_signal_event (EV_P_ int signum)
699{
700 WL w;
701
702#if EV_MULTIPLICITY
703 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
704#endif
705
706 --signum;
707
708 if (signum < 0 || signum >= signalmax)
709 return;
710
711 signals [signum].gotsig = 0;
712
713 for (w = signals [signum].head; w; w = w->next)
714 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
715}
716
717static void
718sigcb (EV_P_ ev_io *iow, int revents)
719{
720 int signum;
721
722 read (sigpipe [0], &revents, 1);
723 gotsig = 0;
724
725 for (signum = signalmax; signum--; )
726 if (signals [signum].gotsig)
727 ev_feed_signal_event (EV_A_ signum + 1);
728}
729
730void inline_size 933void inline_speed
731fd_intern (int fd) 934fd_intern (int fd)
732{ 935{
733#ifdef _WIN32 936#ifdef _WIN32
734 int arg = 1; 937 int arg = 1;
735 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 938 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
738 fcntl (fd, F_SETFL, O_NONBLOCK); 941 fcntl (fd, F_SETFL, O_NONBLOCK);
739#endif 942#endif
740} 943}
741 944
742static void noinline 945static void noinline
743siginit (EV_P) 946evpipe_init (EV_P)
744{ 947{
948 if (!ev_is_active (&pipeev))
949 {
950#if EV_USE_EVENTFD
951 if ((evfd = eventfd (0, 0)) >= 0)
952 {
953 evpipe [0] = -1;
954 fd_intern (evfd);
955 ev_io_set (&pipeev, evfd, EV_READ);
956 }
957 else
958#endif
959 {
960 while (pipe (evpipe))
961 syserr ("(libev) error creating signal/async pipe");
962
745 fd_intern (sigpipe [0]); 963 fd_intern (evpipe [0]);
746 fd_intern (sigpipe [1]); 964 fd_intern (evpipe [1]);
965 ev_io_set (&pipeev, evpipe [0], EV_READ);
966 }
747 967
748 ev_io_set (&sigev, sigpipe [0], EV_READ);
749 ev_io_start (EV_A_ &sigev); 968 ev_io_start (EV_A_ &pipeev);
750 ev_unref (EV_A); /* child watcher should not keep loop alive */ 969 ev_unref (EV_A); /* watcher should not keep loop alive */
970 }
971}
972
973void inline_size
974evpipe_write (EV_P_ EV_ATOMIC_T *flag)
975{
976 if (!*flag)
977 {
978 int old_errno = errno; /* save errno because write might clobber it */
979
980 *flag = 1;
981
982#if EV_USE_EVENTFD
983 if (evfd >= 0)
984 {
985 uint64_t counter = 1;
986 write (evfd, &counter, sizeof (uint64_t));
987 }
988 else
989#endif
990 write (evpipe [1], &old_errno, 1);
991
992 errno = old_errno;
993 }
994}
995
996static void
997pipecb (EV_P_ ev_io *iow, int revents)
998{
999#if EV_USE_EVENTFD
1000 if (evfd >= 0)
1001 {
1002 uint64_t counter;
1003 read (evfd, &counter, sizeof (uint64_t));
1004 }
1005 else
1006#endif
1007 {
1008 char dummy;
1009 read (evpipe [0], &dummy, 1);
1010 }
1011
1012 if (gotsig && ev_is_default_loop (EV_A))
1013 {
1014 int signum;
1015 gotsig = 0;
1016
1017 for (signum = signalmax; signum--; )
1018 if (signals [signum].gotsig)
1019 ev_feed_signal_event (EV_A_ signum + 1);
1020 }
1021
1022#if EV_ASYNC_ENABLE
1023 if (gotasync)
1024 {
1025 int i;
1026 gotasync = 0;
1027
1028 for (i = asynccnt; i--; )
1029 if (asyncs [i]->sent)
1030 {
1031 asyncs [i]->sent = 0;
1032 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1033 }
1034 }
1035#endif
751} 1036}
752 1037
753/*****************************************************************************/ 1038/*****************************************************************************/
754 1039
1040static void
1041ev_sighandler (int signum)
1042{
1043#if EV_MULTIPLICITY
1044 struct ev_loop *loop = &default_loop_struct;
1045#endif
1046
1047#if _WIN32
1048 signal (signum, ev_sighandler);
1049#endif
1050
1051 signals [signum - 1].gotsig = 1;
1052 evpipe_write (EV_A_ &gotsig);
1053}
1054
1055void noinline
1056ev_feed_signal_event (EV_P_ int signum)
1057{
1058 WL w;
1059
1060#if EV_MULTIPLICITY
1061 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1062#endif
1063
1064 --signum;
1065
1066 if (signum < 0 || signum >= signalmax)
1067 return;
1068
1069 signals [signum].gotsig = 0;
1070
1071 for (w = signals [signum].head; w; w = w->next)
1072 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1073}
1074
1075/*****************************************************************************/
1076
755static ev_child *childs [EV_PID_HASHSIZE]; 1077static WL childs [EV_PID_HASHSIZE];
756 1078
757#ifndef _WIN32 1079#ifndef _WIN32
758 1080
759static ev_signal childev; 1081static ev_signal childev;
760 1082
1083#ifndef WIFCONTINUED
1084# define WIFCONTINUED(status) 0
1085#endif
1086
761void inline_speed 1087void inline_speed
762child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 1088child_reap (EV_P_ int chain, int pid, int status)
763{ 1089{
764 ev_child *w; 1090 ev_child *w;
1091 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
765 1092
766 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1093 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1094 {
767 if (w->pid == pid || !w->pid) 1095 if ((w->pid == pid || !w->pid)
1096 && (!traced || (w->flags & 1)))
768 { 1097 {
769 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 1098 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
770 w->rpid = pid; 1099 w->rpid = pid;
771 w->rstatus = status; 1100 w->rstatus = status;
772 ev_feed_event (EV_A_ (W)w, EV_CHILD); 1101 ev_feed_event (EV_A_ (W)w, EV_CHILD);
773 } 1102 }
1103 }
774} 1104}
775 1105
776#ifndef WCONTINUED 1106#ifndef WCONTINUED
777# define WCONTINUED 0 1107# define WCONTINUED 0
778#endif 1108#endif
… …
787 if (!WCONTINUED 1117 if (!WCONTINUED
788 || errno != EINVAL 1118 || errno != EINVAL
789 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 1119 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
790 return; 1120 return;
791 1121
792 /* make sure we are called again until all childs have been reaped */ 1122 /* make sure we are called again until all children have been reaped */
793 /* we need to do it this way so that the callback gets called before we continue */ 1123 /* we need to do it this way so that the callback gets called before we continue */
794 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1124 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
795 1125
796 child_reap (EV_A_ sw, pid, pid, status); 1126 child_reap (EV_A_ pid, pid, status);
797 if (EV_PID_HASHSIZE > 1) 1127 if (EV_PID_HASHSIZE > 1)
798 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1128 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
799} 1129}
800 1130
801#endif 1131#endif
802 1132
803/*****************************************************************************/ 1133/*****************************************************************************/
… …
875} 1205}
876 1206
877unsigned int 1207unsigned int
878ev_embeddable_backends (void) 1208ev_embeddable_backends (void)
879{ 1209{
880 return EVBACKEND_EPOLL 1210 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
881 | EVBACKEND_KQUEUE 1211
882 | EVBACKEND_PORT; 1212 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1213 /* please fix it and tell me how to detect the fix */
1214 flags &= ~EVBACKEND_EPOLL;
1215
1216 return flags;
883} 1217}
884 1218
885unsigned int 1219unsigned int
886ev_backend (EV_P) 1220ev_backend (EV_P)
887{ 1221{
888 return backend; 1222 return backend;
1223}
1224
1225unsigned int
1226ev_loop_count (EV_P)
1227{
1228 return loop_count;
1229}
1230
1231void
1232ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1233{
1234 io_blocktime = interval;
1235}
1236
1237void
1238ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1239{
1240 timeout_blocktime = interval;
889} 1241}
890 1242
891static void noinline 1243static void noinline
892loop_init (EV_P_ unsigned int flags) 1244loop_init (EV_P_ unsigned int flags)
893{ 1245{
… …
899 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1251 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
900 have_monotonic = 1; 1252 have_monotonic = 1;
901 } 1253 }
902#endif 1254#endif
903 1255
904 ev_rt_now = ev_time (); 1256 ev_rt_now = ev_time ();
905 mn_now = get_clock (); 1257 mn_now = get_clock ();
906 now_floor = mn_now; 1258 now_floor = mn_now;
907 rtmn_diff = ev_rt_now - mn_now; 1259 rtmn_diff = ev_rt_now - mn_now;
1260
1261 io_blocktime = 0.;
1262 timeout_blocktime = 0.;
1263 backend = 0;
1264 backend_fd = -1;
1265 gotasync = 0;
1266#if EV_USE_INOTIFY
1267 fs_fd = -2;
1268#endif
1269
1270 /* pid check not overridable via env */
1271#ifndef _WIN32
1272 if (flags & EVFLAG_FORKCHECK)
1273 curpid = getpid ();
1274#endif
908 1275
909 if (!(flags & EVFLAG_NOENV) 1276 if (!(flags & EVFLAG_NOENV)
910 && !enable_secure () 1277 && !enable_secure ()
911 && getenv ("LIBEV_FLAGS")) 1278 && getenv ("LIBEV_FLAGS"))
912 flags = atoi (getenv ("LIBEV_FLAGS")); 1279 flags = atoi (getenv ("LIBEV_FLAGS"));
913 1280
914 if (!(flags & 0x0000ffffUL)) 1281 if (!(flags & 0x0000ffffU))
915 flags |= ev_recommended_backends (); 1282 flags |= ev_recommended_backends ();
916
917 backend = 0;
918 backend_fd = -1;
919#if EV_USE_INOTIFY
920 fs_fd = -2;
921#endif
922 1283
923#if EV_USE_PORT 1284#if EV_USE_PORT
924 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1285 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
925#endif 1286#endif
926#if EV_USE_KQUEUE 1287#if EV_USE_KQUEUE
… …
934#endif 1295#endif
935#if EV_USE_SELECT 1296#if EV_USE_SELECT
936 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1297 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
937#endif 1298#endif
938 1299
939 ev_init (&sigev, sigcb); 1300 ev_init (&pipeev, pipecb);
940 ev_set_priority (&sigev, EV_MAXPRI); 1301 ev_set_priority (&pipeev, EV_MAXPRI);
941 } 1302 }
942} 1303}
943 1304
944static void noinline 1305static void noinline
945loop_destroy (EV_P) 1306loop_destroy (EV_P)
946{ 1307{
947 int i; 1308 int i;
1309
1310 if (ev_is_active (&pipeev))
1311 {
1312 ev_ref (EV_A); /* signal watcher */
1313 ev_io_stop (EV_A_ &pipeev);
1314
1315#if EV_USE_EVENTFD
1316 if (evfd >= 0)
1317 close (evfd);
1318#endif
1319
1320 if (evpipe [0] >= 0)
1321 {
1322 close (evpipe [0]);
1323 close (evpipe [1]);
1324 }
1325 }
948 1326
949#if EV_USE_INOTIFY 1327#if EV_USE_INOTIFY
950 if (fs_fd >= 0) 1328 if (fs_fd >= 0)
951 close (fs_fd); 1329 close (fs_fd);
952#endif 1330#endif
… …
969#if EV_USE_SELECT 1347#if EV_USE_SELECT
970 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 1348 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
971#endif 1349#endif
972 1350
973 for (i = NUMPRI; i--; ) 1351 for (i = NUMPRI; i--; )
1352 {
974 array_free (pending, [i]); 1353 array_free (pending, [i]);
1354#if EV_IDLE_ENABLE
1355 array_free (idle, [i]);
1356#endif
1357 }
1358
1359 ev_free (anfds); anfdmax = 0;
975 1360
976 /* have to use the microsoft-never-gets-it-right macro */ 1361 /* have to use the microsoft-never-gets-it-right macro */
977 array_free (fdchange, EMPTY0); 1362 array_free (fdchange, EMPTY);
978 array_free (timer, EMPTY0); 1363 array_free (timer, EMPTY);
979#if EV_PERIODIC_ENABLE 1364#if EV_PERIODIC_ENABLE
980 array_free (periodic, EMPTY0); 1365 array_free (periodic, EMPTY);
981#endif 1366#endif
1367#if EV_FORK_ENABLE
982 array_free (idle, EMPTY0); 1368 array_free (fork, EMPTY);
1369#endif
983 array_free (prepare, EMPTY0); 1370 array_free (prepare, EMPTY);
984 array_free (check, EMPTY0); 1371 array_free (check, EMPTY);
1372#if EV_ASYNC_ENABLE
1373 array_free (async, EMPTY);
1374#endif
985 1375
986 backend = 0; 1376 backend = 0;
987} 1377}
988 1378
1379#if EV_USE_INOTIFY
989void inline_size infy_fork (EV_P); 1380void inline_size infy_fork (EV_P);
1381#endif
990 1382
991void inline_size 1383void inline_size
992loop_fork (EV_P) 1384loop_fork (EV_P)
993{ 1385{
994#if EV_USE_PORT 1386#if EV_USE_PORT
… …
1002#endif 1394#endif
1003#if EV_USE_INOTIFY 1395#if EV_USE_INOTIFY
1004 infy_fork (EV_A); 1396 infy_fork (EV_A);
1005#endif 1397#endif
1006 1398
1007 if (ev_is_active (&sigev)) 1399 if (ev_is_active (&pipeev))
1008 { 1400 {
1009 /* default loop */ 1401 /* this "locks" the handlers against writing to the pipe */
1402 /* while we modify the fd vars */
1403 gotsig = 1;
1404#if EV_ASYNC_ENABLE
1405 gotasync = 1;
1406#endif
1010 1407
1011 ev_ref (EV_A); 1408 ev_ref (EV_A);
1012 ev_io_stop (EV_A_ &sigev); 1409 ev_io_stop (EV_A_ &pipeev);
1410
1411#if EV_USE_EVENTFD
1412 if (evfd >= 0)
1413 close (evfd);
1414#endif
1415
1416 if (evpipe [0] >= 0)
1417 {
1013 close (sigpipe [0]); 1418 close (evpipe [0]);
1014 close (sigpipe [1]); 1419 close (evpipe [1]);
1420 }
1015 1421
1016 while (pipe (sigpipe))
1017 syserr ("(libev) error creating pipe");
1018
1019 siginit (EV_A); 1422 evpipe_init (EV_A);
1423 /* now iterate over everything, in case we missed something */
1424 pipecb (EV_A_ &pipeev, EV_READ);
1020 } 1425 }
1021 1426
1022 postfork = 0; 1427 postfork = 0;
1023} 1428}
1024 1429
… …
1046} 1451}
1047 1452
1048void 1453void
1049ev_loop_fork (EV_P) 1454ev_loop_fork (EV_P)
1050{ 1455{
1051 postfork = 1; 1456 postfork = 1; /* must be in line with ev_default_fork */
1052} 1457}
1053
1054#endif 1458#endif
1055 1459
1056#if EV_MULTIPLICITY 1460#if EV_MULTIPLICITY
1057struct ev_loop * 1461struct ev_loop *
1058ev_default_loop_init (unsigned int flags) 1462ev_default_loop_init (unsigned int flags)
1059#else 1463#else
1060int 1464int
1061ev_default_loop (unsigned int flags) 1465ev_default_loop (unsigned int flags)
1062#endif 1466#endif
1063{ 1467{
1064 if (sigpipe [0] == sigpipe [1])
1065 if (pipe (sigpipe))
1066 return 0;
1067
1068 if (!ev_default_loop_ptr) 1468 if (!ev_default_loop_ptr)
1069 { 1469 {
1070#if EV_MULTIPLICITY 1470#if EV_MULTIPLICITY
1071 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1471 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1072#else 1472#else
… …
1075 1475
1076 loop_init (EV_A_ flags); 1476 loop_init (EV_A_ flags);
1077 1477
1078 if (ev_backend (EV_A)) 1478 if (ev_backend (EV_A))
1079 { 1479 {
1080 siginit (EV_A);
1081
1082#ifndef _WIN32 1480#ifndef _WIN32
1083 ev_signal_init (&childev, childcb, SIGCHLD); 1481 ev_signal_init (&childev, childcb, SIGCHLD);
1084 ev_set_priority (&childev, EV_MAXPRI); 1482 ev_set_priority (&childev, EV_MAXPRI);
1085 ev_signal_start (EV_A_ &childev); 1483 ev_signal_start (EV_A_ &childev);
1086 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1484 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1103#ifndef _WIN32 1501#ifndef _WIN32
1104 ev_ref (EV_A); /* child watcher */ 1502 ev_ref (EV_A); /* child watcher */
1105 ev_signal_stop (EV_A_ &childev); 1503 ev_signal_stop (EV_A_ &childev);
1106#endif 1504#endif
1107 1505
1108 ev_ref (EV_A); /* signal watcher */
1109 ev_io_stop (EV_A_ &sigev);
1110
1111 close (sigpipe [0]); sigpipe [0] = 0;
1112 close (sigpipe [1]); sigpipe [1] = 0;
1113
1114 loop_destroy (EV_A); 1506 loop_destroy (EV_A);
1115} 1507}
1116 1508
1117void 1509void
1118ev_default_fork (void) 1510ev_default_fork (void)
… …
1120#if EV_MULTIPLICITY 1512#if EV_MULTIPLICITY
1121 struct ev_loop *loop = ev_default_loop_ptr; 1513 struct ev_loop *loop = ev_default_loop_ptr;
1122#endif 1514#endif
1123 1515
1124 if (backend) 1516 if (backend)
1125 postfork = 1; 1517 postfork = 1; /* must be in line with ev_loop_fork */
1126} 1518}
1127 1519
1128/*****************************************************************************/ 1520/*****************************************************************************/
1129 1521
1130int inline_size 1522void
1131any_pending (EV_P) 1523ev_invoke (EV_P_ void *w, int revents)
1132{ 1524{
1133 int pri; 1525 EV_CB_INVOKE ((W)w, revents);
1134
1135 for (pri = NUMPRI; pri--; )
1136 if (pendingcnt [pri])
1137 return 1;
1138
1139 return 0;
1140} 1526}
1141 1527
1142void inline_speed 1528void inline_speed
1143call_pending (EV_P) 1529call_pending (EV_P)
1144{ 1530{
… …
1157 EV_CB_INVOKE (p->w, p->events); 1543 EV_CB_INVOKE (p->w, p->events);
1158 } 1544 }
1159 } 1545 }
1160} 1546}
1161 1547
1548#if EV_IDLE_ENABLE
1549void inline_size
1550idle_reify (EV_P)
1551{
1552 if (expect_false (idleall))
1553 {
1554 int pri;
1555
1556 for (pri = NUMPRI; pri--; )
1557 {
1558 if (pendingcnt [pri])
1559 break;
1560
1561 if (idlecnt [pri])
1562 {
1563 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1564 break;
1565 }
1566 }
1567 }
1568}
1569#endif
1570
1162void inline_size 1571void inline_size
1163timers_reify (EV_P) 1572timers_reify (EV_P)
1164{ 1573{
1165 while (timercnt && ((WT)timers [0])->at <= mn_now) 1574 while (timercnt && ev_at (timers [HEAP0]) <= mn_now)
1166 { 1575 {
1167 ev_timer *w = timers [0]; 1576 ev_timer *w = (ev_timer *)timers [HEAP0];
1168 1577
1169 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ 1578 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1170 1579
1171 /* first reschedule or stop timer */ 1580 /* first reschedule or stop timer */
1172 if (w->repeat) 1581 if (w->repeat)
1173 { 1582 {
1174 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1583 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1175 1584
1176 ((WT)w)->at += w->repeat; 1585 ev_at (w) += w->repeat;
1177 if (((WT)w)->at < mn_now) 1586 if (ev_at (w) < mn_now)
1178 ((WT)w)->at = mn_now; 1587 ev_at (w) = mn_now;
1179 1588
1180 downheap ((WT *)timers, timercnt, 0); 1589 downheap (timers, timercnt, HEAP0);
1181 } 1590 }
1182 else 1591 else
1183 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1592 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1184 1593
1185 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1594 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
… …
1188 1597
1189#if EV_PERIODIC_ENABLE 1598#if EV_PERIODIC_ENABLE
1190void inline_size 1599void inline_size
1191periodics_reify (EV_P) 1600periodics_reify (EV_P)
1192{ 1601{
1193 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1602 while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now)
1194 { 1603 {
1195 ev_periodic *w = periodics [0]; 1604 ev_periodic *w = (ev_periodic *)periodics [HEAP0];
1196 1605
1197 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 1606 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1198 1607
1199 /* first reschedule or stop timer */ 1608 /* first reschedule or stop timer */
1200 if (w->reschedule_cb) 1609 if (w->reschedule_cb)
1201 { 1610 {
1202 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1611 ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1203 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1612 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1204 downheap ((WT *)periodics, periodiccnt, 0); 1613 downheap (periodics, periodiccnt, 1);
1205 } 1614 }
1206 else if (w->interval) 1615 else if (w->interval)
1207 { 1616 {
1208 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1617 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1618 if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1209 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1619 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1210 downheap ((WT *)periodics, periodiccnt, 0); 1620 downheap (periodics, periodiccnt, HEAP0);
1211 } 1621 }
1212 else 1622 else
1213 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1623 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1214 1624
1215 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1625 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
… …
1220periodics_reschedule (EV_P) 1630periodics_reschedule (EV_P)
1221{ 1631{
1222 int i; 1632 int i;
1223 1633
1224 /* adjust periodics after time jump */ 1634 /* adjust periodics after time jump */
1225 for (i = 0; i < periodiccnt; ++i) 1635 for (i = 1; i <= periodiccnt; ++i)
1226 { 1636 {
1227 ev_periodic *w = periodics [i]; 1637 ev_periodic *w = (ev_periodic *)periodics [i];
1228 1638
1229 if (w->reschedule_cb) 1639 if (w->reschedule_cb)
1230 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1640 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1231 else if (w->interval) 1641 else if (w->interval)
1232 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1642 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1233 } 1643 }
1234 1644
1235 /* now rebuild the heap */ 1645 /* now rebuild the heap */
1236 for (i = periodiccnt >> 1; i--; ) 1646 for (i = periodiccnt >> 1; --i; )
1237 downheap ((WT *)periodics, periodiccnt, i); 1647 downheap (periodics, periodiccnt, i + HEAP0);
1238} 1648}
1239#endif 1649#endif
1240 1650
1241int inline_size 1651void inline_speed
1242time_update_monotonic (EV_P) 1652time_update (EV_P_ ev_tstamp max_block)
1243{ 1653{
1654 int i;
1655
1656#if EV_USE_MONOTONIC
1657 if (expect_true (have_monotonic))
1658 {
1659 ev_tstamp odiff = rtmn_diff;
1660
1244 mn_now = get_clock (); 1661 mn_now = get_clock ();
1245 1662
1663 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1664 /* interpolate in the meantime */
1246 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1665 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1247 { 1666 {
1248 ev_rt_now = rtmn_diff + mn_now; 1667 ev_rt_now = rtmn_diff + mn_now;
1249 return 0; 1668 return;
1250 } 1669 }
1251 else 1670
1252 {
1253 now_floor = mn_now; 1671 now_floor = mn_now;
1254 ev_rt_now = ev_time (); 1672 ev_rt_now = ev_time ();
1255 return 1;
1256 }
1257}
1258 1673
1259void inline_size 1674 /* loop a few times, before making important decisions.
1260time_update (EV_P) 1675 * on the choice of "4": one iteration isn't enough,
1261{ 1676 * in case we get preempted during the calls to
1262 int i; 1677 * ev_time and get_clock. a second call is almost guaranteed
1263 1678 * to succeed in that case, though. and looping a few more times
1264#if EV_USE_MONOTONIC 1679 * doesn't hurt either as we only do this on time-jumps or
1265 if (expect_true (have_monotonic)) 1680 * in the unlikely event of having been preempted here.
1266 { 1681 */
1267 if (time_update_monotonic (EV_A)) 1682 for (i = 4; --i; )
1268 { 1683 {
1269 ev_tstamp odiff = rtmn_diff;
1270
1271 /* loop a few times, before making important decisions.
1272 * on the choice of "4": one iteration isn't enough,
1273 * in case we get preempted during the calls to
1274 * ev_time and get_clock. a second call is almost guaranteed
1275 * to succeed in that case, though. and looping a few more times
1276 * doesn't hurt either as we only do this on time-jumps or
1277 * in the unlikely event of having been preempted here.
1278 */
1279 for (i = 4; --i; )
1280 {
1281 rtmn_diff = ev_rt_now - mn_now; 1684 rtmn_diff = ev_rt_now - mn_now;
1282 1685
1283 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1686 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1284 return; /* all is well */ 1687 return; /* all is well */
1285 1688
1286 ev_rt_now = ev_time (); 1689 ev_rt_now = ev_time ();
1287 mn_now = get_clock (); 1690 mn_now = get_clock ();
1288 now_floor = mn_now; 1691 now_floor = mn_now;
1289 } 1692 }
1290 1693
1291# if EV_PERIODIC_ENABLE 1694# if EV_PERIODIC_ENABLE
1292 periodics_reschedule (EV_A); 1695 periodics_reschedule (EV_A);
1293# endif 1696# endif
1294 /* no timer adjustment, as the monotonic clock doesn't jump */ 1697 /* no timer adjustment, as the monotonic clock doesn't jump */
1295 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1698 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1296 }
1297 } 1699 }
1298 else 1700 else
1299#endif 1701#endif
1300 { 1702 {
1301 ev_rt_now = ev_time (); 1703 ev_rt_now = ev_time ();
1302 1704
1303 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1705 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1304 { 1706 {
1305#if EV_PERIODIC_ENABLE 1707#if EV_PERIODIC_ENABLE
1306 periodics_reschedule (EV_A); 1708 periodics_reschedule (EV_A);
1307#endif 1709#endif
1308
1309 /* adjust timers. this is easy, as the offset is the same for all of them */ 1710 /* adjust timers. this is easy, as the offset is the same for all of them */
1310 for (i = 0; i < timercnt; ++i) 1711 for (i = 1; i <= timercnt; ++i)
1311 ((WT)timers [i])->at += ev_rt_now - mn_now; 1712 ev_at (timers [i]) += ev_rt_now - mn_now;
1312 } 1713 }
1313 1714
1314 mn_now = ev_rt_now; 1715 mn_now = ev_rt_now;
1315 } 1716 }
1316} 1717}
… …
1330static int loop_done; 1731static int loop_done;
1331 1732
1332void 1733void
1333ev_loop (EV_P_ int flags) 1734ev_loop (EV_P_ int flags)
1334{ 1735{
1335 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1736 loop_done = EVUNLOOP_CANCEL;
1336 ? EVUNLOOP_ONE
1337 : EVUNLOOP_CANCEL;
1338 1737
1339 while (activecnt) 1738 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1739
1740 do
1340 { 1741 {
1742#ifndef _WIN32
1743 if (expect_false (curpid)) /* penalise the forking check even more */
1744 if (expect_false (getpid () != curpid))
1745 {
1746 curpid = getpid ();
1747 postfork = 1;
1748 }
1749#endif
1750
1341#if EV_FORK_ENABLE 1751#if EV_FORK_ENABLE
1342 /* we might have forked, so queue fork handlers */ 1752 /* we might have forked, so queue fork handlers */
1343 if (expect_false (postfork)) 1753 if (expect_false (postfork))
1344 if (forkcnt) 1754 if (forkcnt)
1345 { 1755 {
1346 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 1756 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1347 call_pending (EV_A); 1757 call_pending (EV_A);
1348 } 1758 }
1349#endif 1759#endif
1350 1760
1351 /* queue check watchers (and execute them) */ 1761 /* queue prepare watchers (and execute them) */
1352 if (expect_false (preparecnt)) 1762 if (expect_false (preparecnt))
1353 { 1763 {
1354 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1764 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1355 call_pending (EV_A); 1765 call_pending (EV_A);
1356 } 1766 }
1357 1767
1768 if (expect_false (!activecnt))
1769 break;
1770
1358 /* we might have forked, so reify kernel state if necessary */ 1771 /* we might have forked, so reify kernel state if necessary */
1359 if (expect_false (postfork)) 1772 if (expect_false (postfork))
1360 loop_fork (EV_A); 1773 loop_fork (EV_A);
1361 1774
1362 /* update fd-related kernel structures */ 1775 /* update fd-related kernel structures */
1363 fd_reify (EV_A); 1776 fd_reify (EV_A);
1364 1777
1365 /* calculate blocking time */ 1778 /* calculate blocking time */
1366 { 1779 {
1367 ev_tstamp block; 1780 ev_tstamp waittime = 0.;
1781 ev_tstamp sleeptime = 0.;
1368 1782
1369 if (flags & EVLOOP_NONBLOCK || idlecnt) 1783 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1370 block = 0.; /* do not block at all */
1371 else
1372 { 1784 {
1373 /* update time to cancel out callback processing overhead */ 1785 /* update time to cancel out callback processing overhead */
1374#if EV_USE_MONOTONIC
1375 if (expect_true (have_monotonic))
1376 time_update_monotonic (EV_A); 1786 time_update (EV_A_ 1e100);
1377 else
1378#endif
1379 {
1380 ev_rt_now = ev_time ();
1381 mn_now = ev_rt_now;
1382 }
1383 1787
1384 block = MAX_BLOCKTIME; 1788 waittime = MAX_BLOCKTIME;
1385 1789
1386 if (timercnt) 1790 if (timercnt)
1387 { 1791 {
1388 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1792 ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge;
1389 if (block > to) block = to; 1793 if (waittime > to) waittime = to;
1390 } 1794 }
1391 1795
1392#if EV_PERIODIC_ENABLE 1796#if EV_PERIODIC_ENABLE
1393 if (periodiccnt) 1797 if (periodiccnt)
1394 { 1798 {
1395 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1799 ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1396 if (block > to) block = to; 1800 if (waittime > to) waittime = to;
1397 } 1801 }
1398#endif 1802#endif
1399 1803
1400 if (expect_false (block < 0.)) block = 0.; 1804 if (expect_false (waittime < timeout_blocktime))
1805 waittime = timeout_blocktime;
1806
1807 sleeptime = waittime - backend_fudge;
1808
1809 if (expect_true (sleeptime > io_blocktime))
1810 sleeptime = io_blocktime;
1811
1812 if (sleeptime)
1813 {
1814 ev_sleep (sleeptime);
1815 waittime -= sleeptime;
1816 }
1401 } 1817 }
1402 1818
1819 ++loop_count;
1403 backend_poll (EV_A_ block); 1820 backend_poll (EV_A_ waittime);
1821
1822 /* update ev_rt_now, do magic */
1823 time_update (EV_A_ waittime + sleeptime);
1404 } 1824 }
1405
1406 /* update ev_rt_now, do magic */
1407 time_update (EV_A);
1408 1825
1409 /* queue pending timers and reschedule them */ 1826 /* queue pending timers and reschedule them */
1410 timers_reify (EV_A); /* relative timers called last */ 1827 timers_reify (EV_A); /* relative timers called last */
1411#if EV_PERIODIC_ENABLE 1828#if EV_PERIODIC_ENABLE
1412 periodics_reify (EV_A); /* absolute timers called first */ 1829 periodics_reify (EV_A); /* absolute timers called first */
1413#endif 1830#endif
1414 1831
1832#if EV_IDLE_ENABLE
1415 /* queue idle watchers unless other events are pending */ 1833 /* queue idle watchers unless other events are pending */
1416 if (idlecnt && !any_pending (EV_A)) 1834 idle_reify (EV_A);
1417 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1835#endif
1418 1836
1419 /* queue check watchers, to be executed first */ 1837 /* queue check watchers, to be executed first */
1420 if (expect_false (checkcnt)) 1838 if (expect_false (checkcnt))
1421 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1839 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1422 1840
1423 call_pending (EV_A); 1841 call_pending (EV_A);
1424
1425 if (expect_false (loop_done))
1426 break;
1427 } 1842 }
1843 while (expect_true (
1844 activecnt
1845 && !loop_done
1846 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1847 ));
1428 1848
1429 if (loop_done == EVUNLOOP_ONE) 1849 if (loop_done == EVUNLOOP_ONE)
1430 loop_done = EVUNLOOP_CANCEL; 1850 loop_done = EVUNLOOP_CANCEL;
1431} 1851}
1432 1852
… …
1459 head = &(*head)->next; 1879 head = &(*head)->next;
1460 } 1880 }
1461} 1881}
1462 1882
1463void inline_speed 1883void inline_speed
1464ev_clear_pending (EV_P_ W w) 1884clear_pending (EV_P_ W w)
1465{ 1885{
1466 if (w->pending) 1886 if (w->pending)
1467 { 1887 {
1468 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1888 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1469 w->pending = 0; 1889 w->pending = 0;
1470 } 1890 }
1471} 1891}
1472 1892
1893int
1894ev_clear_pending (EV_P_ void *w)
1895{
1896 W w_ = (W)w;
1897 int pending = w_->pending;
1898
1899 if (expect_true (pending))
1900 {
1901 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1902 w_->pending = 0;
1903 p->w = 0;
1904 return p->events;
1905 }
1906 else
1907 return 0;
1908}
1909
1910void inline_size
1911pri_adjust (EV_P_ W w)
1912{
1913 int pri = w->priority;
1914 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1915 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1916 w->priority = pri;
1917}
1918
1473void inline_speed 1919void inline_speed
1474ev_start (EV_P_ W w, int active) 1920ev_start (EV_P_ W w, int active)
1475{ 1921{
1476 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1922 pri_adjust (EV_A_ w);
1477 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1478
1479 w->active = active; 1923 w->active = active;
1480 ev_ref (EV_A); 1924 ev_ref (EV_A);
1481} 1925}
1482 1926
1483void inline_size 1927void inline_size
… …
1487 w->active = 0; 1931 w->active = 0;
1488} 1932}
1489 1933
1490/*****************************************************************************/ 1934/*****************************************************************************/
1491 1935
1492void 1936void noinline
1493ev_io_start (EV_P_ ev_io *w) 1937ev_io_start (EV_P_ ev_io *w)
1494{ 1938{
1495 int fd = w->fd; 1939 int fd = w->fd;
1496 1940
1497 if (expect_false (ev_is_active (w))) 1941 if (expect_false (ev_is_active (w)))
… …
1499 1943
1500 assert (("ev_io_start called with negative fd", fd >= 0)); 1944 assert (("ev_io_start called with negative fd", fd >= 0));
1501 1945
1502 ev_start (EV_A_ (W)w, 1); 1946 ev_start (EV_A_ (W)w, 1);
1503 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1947 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1504 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1948 wlist_add (&anfds[fd].head, (WL)w);
1505 1949
1506 fd_change (EV_A_ fd); 1950 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1951 w->events &= ~EV_IOFDSET;
1507} 1952}
1508 1953
1509void 1954void noinline
1510ev_io_stop (EV_P_ ev_io *w) 1955ev_io_stop (EV_P_ ev_io *w)
1511{ 1956{
1512 ev_clear_pending (EV_A_ (W)w); 1957 clear_pending (EV_A_ (W)w);
1513 if (expect_false (!ev_is_active (w))) 1958 if (expect_false (!ev_is_active (w)))
1514 return; 1959 return;
1515 1960
1516 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1961 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1517 1962
1518 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1963 wlist_del (&anfds[w->fd].head, (WL)w);
1519 ev_stop (EV_A_ (W)w); 1964 ev_stop (EV_A_ (W)w);
1520 1965
1521 fd_change (EV_A_ w->fd); 1966 fd_change (EV_A_ w->fd, 1);
1522} 1967}
1523 1968
1524void 1969void noinline
1525ev_timer_start (EV_P_ ev_timer *w) 1970ev_timer_start (EV_P_ ev_timer *w)
1526{ 1971{
1527 if (expect_false (ev_is_active (w))) 1972 if (expect_false (ev_is_active (w)))
1528 return; 1973 return;
1529 1974
1530 ((WT)w)->at += mn_now; 1975 ev_at (w) += mn_now;
1531 1976
1532 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1977 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1533 1978
1534 ev_start (EV_A_ (W)w, ++timercnt); 1979 ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);
1535 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); 1980 array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2);
1536 timers [timercnt - 1] = w; 1981 timers [ev_active (w)] = (WT)w;
1537 upheap ((WT *)timers, timercnt - 1); 1982 upheap (timers, ev_active (w));
1538 1983
1539 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 1984 /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/
1540} 1985}
1541 1986
1542void 1987void noinline
1543ev_timer_stop (EV_P_ ev_timer *w) 1988ev_timer_stop (EV_P_ ev_timer *w)
1544{ 1989{
1545 ev_clear_pending (EV_A_ (W)w); 1990 clear_pending (EV_A_ (W)w);
1546 if (expect_false (!ev_is_active (w))) 1991 if (expect_false (!ev_is_active (w)))
1547 return; 1992 return;
1548 1993
1549 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1550
1551 { 1994 {
1552 int active = ((W)w)->active; 1995 int active = ev_active (w);
1553 1996
1997 assert (("internal timer heap corruption", timers [active] == (WT)w));
1998
1554 if (expect_true (--active < --timercnt)) 1999 if (expect_true (active < timercnt + HEAP0 - 1))
1555 { 2000 {
1556 timers [active] = timers [timercnt]; 2001 timers [active] = timers [timercnt + HEAP0 - 1];
1557 adjustheap ((WT *)timers, timercnt, active); 2002 adjustheap (timers, timercnt, active);
1558 } 2003 }
2004
2005 --timercnt;
1559 } 2006 }
1560 2007
1561 ((WT)w)->at -= mn_now; 2008 ev_at (w) -= mn_now;
1562 2009
1563 ev_stop (EV_A_ (W)w); 2010 ev_stop (EV_A_ (W)w);
1564} 2011}
1565 2012
1566void 2013void noinline
1567ev_timer_again (EV_P_ ev_timer *w) 2014ev_timer_again (EV_P_ ev_timer *w)
1568{ 2015{
1569 if (ev_is_active (w)) 2016 if (ev_is_active (w))
1570 { 2017 {
1571 if (w->repeat) 2018 if (w->repeat)
1572 { 2019 {
1573 ((WT)w)->at = mn_now + w->repeat; 2020 ev_at (w) = mn_now + w->repeat;
1574 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 2021 adjustheap (timers, timercnt, ev_active (w));
1575 } 2022 }
1576 else 2023 else
1577 ev_timer_stop (EV_A_ w); 2024 ev_timer_stop (EV_A_ w);
1578 } 2025 }
1579 else if (w->repeat) 2026 else if (w->repeat)
1580 { 2027 {
1581 w->at = w->repeat; 2028 ev_at (w) = w->repeat;
1582 ev_timer_start (EV_A_ w); 2029 ev_timer_start (EV_A_ w);
1583 } 2030 }
1584} 2031}
1585 2032
1586#if EV_PERIODIC_ENABLE 2033#if EV_PERIODIC_ENABLE
1587void 2034void noinline
1588ev_periodic_start (EV_P_ ev_periodic *w) 2035ev_periodic_start (EV_P_ ev_periodic *w)
1589{ 2036{
1590 if (expect_false (ev_is_active (w))) 2037 if (expect_false (ev_is_active (w)))
1591 return; 2038 return;
1592 2039
1593 if (w->reschedule_cb) 2040 if (w->reschedule_cb)
1594 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 2041 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1595 else if (w->interval) 2042 else if (w->interval)
1596 { 2043 {
1597 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2044 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1598 /* this formula differs from the one in periodic_reify because we do not always round up */ 2045 /* this formula differs from the one in periodic_reify because we do not always round up */
1599 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 2046 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1600 } 2047 }
2048 else
2049 ev_at (w) = w->offset;
1601 2050
1602 ev_start (EV_A_ (W)w, ++periodiccnt); 2051 ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);
1603 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 2052 array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2);
1604 periodics [periodiccnt - 1] = w; 2053 periodics [ev_active (w)] = (WT)w;
1605 upheap ((WT *)periodics, periodiccnt - 1); 2054 upheap (periodics, ev_active (w));
1606 2055
1607 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2056 /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/
1608} 2057}
1609 2058
1610void 2059void noinline
1611ev_periodic_stop (EV_P_ ev_periodic *w) 2060ev_periodic_stop (EV_P_ ev_periodic *w)
1612{ 2061{
1613 ev_clear_pending (EV_A_ (W)w); 2062 clear_pending (EV_A_ (W)w);
1614 if (expect_false (!ev_is_active (w))) 2063 if (expect_false (!ev_is_active (w)))
1615 return; 2064 return;
1616 2065
1617 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1618
1619 { 2066 {
1620 int active = ((W)w)->active; 2067 int active = ev_active (w);
1621 2068
2069 assert (("internal periodic heap corruption", periodics [active] == (WT)w));
2070
1622 if (expect_true (--active < --periodiccnt)) 2071 if (expect_true (active < periodiccnt + HEAP0 - 1))
1623 { 2072 {
1624 periodics [active] = periodics [periodiccnt]; 2073 periodics [active] = periodics [periodiccnt + HEAP0 - 1];
1625 adjustheap ((WT *)periodics, periodiccnt, active); 2074 adjustheap (periodics, periodiccnt, active);
1626 } 2075 }
2076
2077 --periodiccnt;
1627 } 2078 }
1628 2079
1629 ev_stop (EV_A_ (W)w); 2080 ev_stop (EV_A_ (W)w);
1630} 2081}
1631 2082
1632void 2083void noinline
1633ev_periodic_again (EV_P_ ev_periodic *w) 2084ev_periodic_again (EV_P_ ev_periodic *w)
1634{ 2085{
1635 /* TODO: use adjustheap and recalculation */ 2086 /* TODO: use adjustheap and recalculation */
1636 ev_periodic_stop (EV_A_ w); 2087 ev_periodic_stop (EV_A_ w);
1637 ev_periodic_start (EV_A_ w); 2088 ev_periodic_start (EV_A_ w);
… …
1640 2091
1641#ifndef SA_RESTART 2092#ifndef SA_RESTART
1642# define SA_RESTART 0 2093# define SA_RESTART 0
1643#endif 2094#endif
1644 2095
1645void 2096void noinline
1646ev_signal_start (EV_P_ ev_signal *w) 2097ev_signal_start (EV_P_ ev_signal *w)
1647{ 2098{
1648#if EV_MULTIPLICITY 2099#if EV_MULTIPLICITY
1649 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2100 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1650#endif 2101#endif
1651 if (expect_false (ev_is_active (w))) 2102 if (expect_false (ev_is_active (w)))
1652 return; 2103 return;
1653 2104
1654 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2105 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1655 2106
2107 evpipe_init (EV_A);
2108
2109 {
2110#ifndef _WIN32
2111 sigset_t full, prev;
2112 sigfillset (&full);
2113 sigprocmask (SIG_SETMASK, &full, &prev);
2114#endif
2115
2116 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
2117
2118#ifndef _WIN32
2119 sigprocmask (SIG_SETMASK, &prev, 0);
2120#endif
2121 }
2122
1656 ev_start (EV_A_ (W)w, 1); 2123 ev_start (EV_A_ (W)w, 1);
1657 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1658 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 2124 wlist_add (&signals [w->signum - 1].head, (WL)w);
1659 2125
1660 if (!((WL)w)->next) 2126 if (!((WL)w)->next)
1661 { 2127 {
1662#if _WIN32 2128#if _WIN32
1663 signal (w->signum, sighandler); 2129 signal (w->signum, ev_sighandler);
1664#else 2130#else
1665 struct sigaction sa; 2131 struct sigaction sa;
1666 sa.sa_handler = sighandler; 2132 sa.sa_handler = ev_sighandler;
1667 sigfillset (&sa.sa_mask); 2133 sigfillset (&sa.sa_mask);
1668 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2134 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1669 sigaction (w->signum, &sa, 0); 2135 sigaction (w->signum, &sa, 0);
1670#endif 2136#endif
1671 } 2137 }
1672} 2138}
1673 2139
1674void 2140void noinline
1675ev_signal_stop (EV_P_ ev_signal *w) 2141ev_signal_stop (EV_P_ ev_signal *w)
1676{ 2142{
1677 ev_clear_pending (EV_A_ (W)w); 2143 clear_pending (EV_A_ (W)w);
1678 if (expect_false (!ev_is_active (w))) 2144 if (expect_false (!ev_is_active (w)))
1679 return; 2145 return;
1680 2146
1681 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 2147 wlist_del (&signals [w->signum - 1].head, (WL)w);
1682 ev_stop (EV_A_ (W)w); 2148 ev_stop (EV_A_ (W)w);
1683 2149
1684 if (!signals [w->signum - 1].head) 2150 if (!signals [w->signum - 1].head)
1685 signal (w->signum, SIG_DFL); 2151 signal (w->signum, SIG_DFL);
1686} 2152}
… …
1693#endif 2159#endif
1694 if (expect_false (ev_is_active (w))) 2160 if (expect_false (ev_is_active (w)))
1695 return; 2161 return;
1696 2162
1697 ev_start (EV_A_ (W)w, 1); 2163 ev_start (EV_A_ (W)w, 1);
1698 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2164 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1699} 2165}
1700 2166
1701void 2167void
1702ev_child_stop (EV_P_ ev_child *w) 2168ev_child_stop (EV_P_ ev_child *w)
1703{ 2169{
1704 ev_clear_pending (EV_A_ (W)w); 2170 clear_pending (EV_A_ (W)w);
1705 if (expect_false (!ev_is_active (w))) 2171 if (expect_false (!ev_is_active (w)))
1706 return; 2172 return;
1707 2173
1708 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2174 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1709 ev_stop (EV_A_ (W)w); 2175 ev_stop (EV_A_ (W)w);
1710} 2176}
1711 2177
1712#if EV_STAT_ENABLE 2178#if EV_STAT_ENABLE
1713 2179
… …
1732 if (w->wd < 0) 2198 if (w->wd < 0)
1733 { 2199 {
1734 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2200 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1735 2201
1736 /* monitor some parent directory for speedup hints */ 2202 /* monitor some parent directory for speedup hints */
2203 /* note that exceeding the hardcoded limit is not a correctness issue, */
2204 /* but an efficiency issue only */
1737 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2205 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1738 { 2206 {
1739 char path [4096]; 2207 char path [4096];
1740 strcpy (path, w->path); 2208 strcpy (path, w->path);
1741 2209
… …
1945} 2413}
1946 2414
1947void 2415void
1948ev_stat_stop (EV_P_ ev_stat *w) 2416ev_stat_stop (EV_P_ ev_stat *w)
1949{ 2417{
1950 ev_clear_pending (EV_A_ (W)w); 2418 clear_pending (EV_A_ (W)w);
1951 if (expect_false (!ev_is_active (w))) 2419 if (expect_false (!ev_is_active (w)))
1952 return; 2420 return;
1953 2421
1954#if EV_USE_INOTIFY 2422#if EV_USE_INOTIFY
1955 infy_del (EV_A_ w); 2423 infy_del (EV_A_ w);
… …
1958 2426
1959 ev_stop (EV_A_ (W)w); 2427 ev_stop (EV_A_ (W)w);
1960} 2428}
1961#endif 2429#endif
1962 2430
2431#if EV_IDLE_ENABLE
1963void 2432void
1964ev_idle_start (EV_P_ ev_idle *w) 2433ev_idle_start (EV_P_ ev_idle *w)
1965{ 2434{
1966 if (expect_false (ev_is_active (w))) 2435 if (expect_false (ev_is_active (w)))
1967 return; 2436 return;
1968 2437
2438 pri_adjust (EV_A_ (W)w);
2439
2440 {
2441 int active = ++idlecnt [ABSPRI (w)];
2442
2443 ++idleall;
1969 ev_start (EV_A_ (W)w, ++idlecnt); 2444 ev_start (EV_A_ (W)w, active);
2445
1970 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); 2446 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1971 idles [idlecnt - 1] = w; 2447 idles [ABSPRI (w)][active - 1] = w;
2448 }
1972} 2449}
1973 2450
1974void 2451void
1975ev_idle_stop (EV_P_ ev_idle *w) 2452ev_idle_stop (EV_P_ ev_idle *w)
1976{ 2453{
1977 ev_clear_pending (EV_A_ (W)w); 2454 clear_pending (EV_A_ (W)w);
1978 if (expect_false (!ev_is_active (w))) 2455 if (expect_false (!ev_is_active (w)))
1979 return; 2456 return;
1980 2457
1981 { 2458 {
1982 int active = ((W)w)->active; 2459 int active = ev_active (w);
1983 idles [active - 1] = idles [--idlecnt]; 2460
1984 ((W)idles [active - 1])->active = active; 2461 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2462 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2463
2464 ev_stop (EV_A_ (W)w);
2465 --idleall;
1985 } 2466 }
1986
1987 ev_stop (EV_A_ (W)w);
1988} 2467}
2468#endif
1989 2469
1990void 2470void
1991ev_prepare_start (EV_P_ ev_prepare *w) 2471ev_prepare_start (EV_P_ ev_prepare *w)
1992{ 2472{
1993 if (expect_false (ev_is_active (w))) 2473 if (expect_false (ev_is_active (w)))
… …
1999} 2479}
2000 2480
2001void 2481void
2002ev_prepare_stop (EV_P_ ev_prepare *w) 2482ev_prepare_stop (EV_P_ ev_prepare *w)
2003{ 2483{
2004 ev_clear_pending (EV_A_ (W)w); 2484 clear_pending (EV_A_ (W)w);
2005 if (expect_false (!ev_is_active (w))) 2485 if (expect_false (!ev_is_active (w)))
2006 return; 2486 return;
2007 2487
2008 { 2488 {
2009 int active = ((W)w)->active; 2489 int active = ev_active (w);
2490
2010 prepares [active - 1] = prepares [--preparecnt]; 2491 prepares [active - 1] = prepares [--preparecnt];
2011 ((W)prepares [active - 1])->active = active; 2492 ev_active (prepares [active - 1]) = active;
2012 } 2493 }
2013 2494
2014 ev_stop (EV_A_ (W)w); 2495 ev_stop (EV_A_ (W)w);
2015} 2496}
2016 2497
… …
2026} 2507}
2027 2508
2028void 2509void
2029ev_check_stop (EV_P_ ev_check *w) 2510ev_check_stop (EV_P_ ev_check *w)
2030{ 2511{
2031 ev_clear_pending (EV_A_ (W)w); 2512 clear_pending (EV_A_ (W)w);
2032 if (expect_false (!ev_is_active (w))) 2513 if (expect_false (!ev_is_active (w)))
2033 return; 2514 return;
2034 2515
2035 { 2516 {
2036 int active = ((W)w)->active; 2517 int active = ev_active (w);
2518
2037 checks [active - 1] = checks [--checkcnt]; 2519 checks [active - 1] = checks [--checkcnt];
2038 ((W)checks [active - 1])->active = active; 2520 ev_active (checks [active - 1]) = active;
2039 } 2521 }
2040 2522
2041 ev_stop (EV_A_ (W)w); 2523 ev_stop (EV_A_ (W)w);
2042} 2524}
2043 2525
2044#if EV_EMBED_ENABLE 2526#if EV_EMBED_ENABLE
2045void noinline 2527void noinline
2046ev_embed_sweep (EV_P_ ev_embed *w) 2528ev_embed_sweep (EV_P_ ev_embed *w)
2047{ 2529{
2048 ev_loop (w->loop, EVLOOP_NONBLOCK); 2530 ev_loop (w->other, EVLOOP_NONBLOCK);
2049} 2531}
2050 2532
2051static void 2533static void
2052embed_cb (EV_P_ ev_io *io, int revents) 2534embed_io_cb (EV_P_ ev_io *io, int revents)
2053{ 2535{
2054 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 2536 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2055 2537
2056 if (ev_cb (w)) 2538 if (ev_cb (w))
2057 ev_feed_event (EV_A_ (W)w, EV_EMBED); 2539 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2058 else 2540 else
2059 ev_embed_sweep (loop, w); 2541 ev_loop (w->other, EVLOOP_NONBLOCK);
2060} 2542}
2543
2544static void
2545embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2546{
2547 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2548
2549 {
2550 struct ev_loop *loop = w->other;
2551
2552 while (fdchangecnt)
2553 {
2554 fd_reify (EV_A);
2555 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2556 }
2557 }
2558}
2559
2560#if 0
2561static void
2562embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2563{
2564 ev_idle_stop (EV_A_ idle);
2565}
2566#endif
2061 2567
2062void 2568void
2063ev_embed_start (EV_P_ ev_embed *w) 2569ev_embed_start (EV_P_ ev_embed *w)
2064{ 2570{
2065 if (expect_false (ev_is_active (w))) 2571 if (expect_false (ev_is_active (w)))
2066 return; 2572 return;
2067 2573
2068 { 2574 {
2069 struct ev_loop *loop = w->loop; 2575 struct ev_loop *loop = w->other;
2070 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2576 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2071 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2577 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2072 } 2578 }
2073 2579
2074 ev_set_priority (&w->io, ev_priority (w)); 2580 ev_set_priority (&w->io, ev_priority (w));
2075 ev_io_start (EV_A_ &w->io); 2581 ev_io_start (EV_A_ &w->io);
2076 2582
2583 ev_prepare_init (&w->prepare, embed_prepare_cb);
2584 ev_set_priority (&w->prepare, EV_MINPRI);
2585 ev_prepare_start (EV_A_ &w->prepare);
2586
2587 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2588
2077 ev_start (EV_A_ (W)w, 1); 2589 ev_start (EV_A_ (W)w, 1);
2078} 2590}
2079 2591
2080void 2592void
2081ev_embed_stop (EV_P_ ev_embed *w) 2593ev_embed_stop (EV_P_ ev_embed *w)
2082{ 2594{
2083 ev_clear_pending (EV_A_ (W)w); 2595 clear_pending (EV_A_ (W)w);
2084 if (expect_false (!ev_is_active (w))) 2596 if (expect_false (!ev_is_active (w)))
2085 return; 2597 return;
2086 2598
2087 ev_io_stop (EV_A_ &w->io); 2599 ev_io_stop (EV_A_ &w->io);
2600 ev_prepare_stop (EV_A_ &w->prepare);
2088 2601
2089 ev_stop (EV_A_ (W)w); 2602 ev_stop (EV_A_ (W)w);
2090} 2603}
2091#endif 2604#endif
2092 2605
… …
2103} 2616}
2104 2617
2105void 2618void
2106ev_fork_stop (EV_P_ ev_fork *w) 2619ev_fork_stop (EV_P_ ev_fork *w)
2107{ 2620{
2108 ev_clear_pending (EV_A_ (W)w); 2621 clear_pending (EV_A_ (W)w);
2109 if (expect_false (!ev_is_active (w))) 2622 if (expect_false (!ev_is_active (w)))
2110 return; 2623 return;
2111 2624
2112 { 2625 {
2113 int active = ((W)w)->active; 2626 int active = ev_active (w);
2627
2114 forks [active - 1] = forks [--forkcnt]; 2628 forks [active - 1] = forks [--forkcnt];
2115 ((W)forks [active - 1])->active = active; 2629 ev_active (forks [active - 1]) = active;
2116 } 2630 }
2117 2631
2118 ev_stop (EV_A_ (W)w); 2632 ev_stop (EV_A_ (W)w);
2633}
2634#endif
2635
2636#if EV_ASYNC_ENABLE
2637void
2638ev_async_start (EV_P_ ev_async *w)
2639{
2640 if (expect_false (ev_is_active (w)))
2641 return;
2642
2643 evpipe_init (EV_A);
2644
2645 ev_start (EV_A_ (W)w, ++asynccnt);
2646 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2647 asyncs [asynccnt - 1] = w;
2648}
2649
2650void
2651ev_async_stop (EV_P_ ev_async *w)
2652{
2653 clear_pending (EV_A_ (W)w);
2654 if (expect_false (!ev_is_active (w)))
2655 return;
2656
2657 {
2658 int active = ev_active (w);
2659
2660 asyncs [active - 1] = asyncs [--asynccnt];
2661 ev_active (asyncs [active - 1]) = active;
2662 }
2663
2664 ev_stop (EV_A_ (W)w);
2665}
2666
2667void
2668ev_async_send (EV_P_ ev_async *w)
2669{
2670 w->sent = 1;
2671 evpipe_write (EV_A_ &gotasync);
2119} 2672}
2120#endif 2673#endif
2121 2674
2122/*****************************************************************************/ 2675/*****************************************************************************/
2123 2676
… …
2181 ev_timer_set (&once->to, timeout, 0.); 2734 ev_timer_set (&once->to, timeout, 0.);
2182 ev_timer_start (EV_A_ &once->to); 2735 ev_timer_start (EV_A_ &once->to);
2183 } 2736 }
2184} 2737}
2185 2738
2739#if EV_MULTIPLICITY
2740 #include "ev_wrap.h"
2741#endif
2742
2186#ifdef __cplusplus 2743#ifdef __cplusplus
2187} 2744}
2188#endif 2745#endif
2189 2746

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