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Comparing libev/ev.c (file contents):
Revision 1.184 by root, Wed Dec 12 05:30:52 2007 UTC vs.
Revision 1.260 by root, Mon Sep 8 17:24:39 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>
… …
129#ifndef _WIN32 154#ifndef _WIN32
130# include <sys/time.h> 155# include <sys/time.h>
131# include <sys/wait.h> 156# include <sys/wait.h>
132# include <unistd.h> 157# include <unistd.h>
133#else 158#else
159# include <io.h>
134# define WIN32_LEAN_AND_MEAN 160# define WIN32_LEAN_AND_MEAN
135# include <windows.h> 161# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET 162# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1 163# define EV_SELECT_IS_WINSOCKET 1
138# endif 164# endif
139#endif 165#endif
140 166
141/**/ 167/* this block tries to deduce configuration from header-defined symbols and defaults */
142 168
143#ifndef EV_USE_MONOTONIC 169#ifndef EV_USE_MONOTONIC
170# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171# define EV_USE_MONOTONIC 1
172# else
144# define EV_USE_MONOTONIC 0 173# define EV_USE_MONOTONIC 0
174# endif
145#endif 175#endif
146 176
147#ifndef EV_USE_REALTIME 177#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0 178# define EV_USE_REALTIME 0
179#endif
180
181#ifndef EV_USE_NANOSLEEP
182# if _POSIX_C_SOURCE >= 199309L
183# define EV_USE_NANOSLEEP 1
184# else
185# define EV_USE_NANOSLEEP 0
186# endif
149#endif 187#endif
150 188
151#ifndef EV_USE_SELECT 189#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1 190# define EV_USE_SELECT 1
153#endif 191#endif
… …
159# define EV_USE_POLL 1 197# define EV_USE_POLL 1
160# endif 198# endif
161#endif 199#endif
162 200
163#ifndef EV_USE_EPOLL 201#ifndef EV_USE_EPOLL
202# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
203# define EV_USE_EPOLL 1
204# else
164# define EV_USE_EPOLL 0 205# define EV_USE_EPOLL 0
206# endif
165#endif 207#endif
166 208
167#ifndef EV_USE_KQUEUE 209#ifndef EV_USE_KQUEUE
168# define EV_USE_KQUEUE 0 210# define EV_USE_KQUEUE 0
169#endif 211#endif
… …
171#ifndef EV_USE_PORT 213#ifndef EV_USE_PORT
172# define EV_USE_PORT 0 214# define EV_USE_PORT 0
173#endif 215#endif
174 216
175#ifndef EV_USE_INOTIFY 217#ifndef EV_USE_INOTIFY
218# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
219# define EV_USE_INOTIFY 1
220# else
176# define EV_USE_INOTIFY 0 221# define EV_USE_INOTIFY 0
222# endif
177#endif 223#endif
178 224
179#ifndef EV_PID_HASHSIZE 225#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL 226# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1 227# define EV_PID_HASHSIZE 1
… …
190# else 236# else
191# define EV_INOTIFY_HASHSIZE 16 237# define EV_INOTIFY_HASHSIZE 16
192# endif 238# endif
193#endif 239#endif
194 240
195/**/ 241#ifndef EV_USE_EVENTFD
242# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
243# define EV_USE_EVENTFD 1
244# else
245# define EV_USE_EVENTFD 0
246# endif
247#endif
248
249#if 0 /* debugging */
250# define EV_VERIFY 3
251# define EV_USE_4HEAP 1
252# define EV_HEAP_CACHE_AT 1
253#endif
254
255#ifndef EV_VERIFY
256# define EV_VERIFY !EV_MINIMAL
257#endif
258
259#ifndef EV_USE_4HEAP
260# define EV_USE_4HEAP !EV_MINIMAL
261#endif
262
263#ifndef EV_HEAP_CACHE_AT
264# define EV_HEAP_CACHE_AT !EV_MINIMAL
265#endif
266
267/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196 268
197#ifndef CLOCK_MONOTONIC 269#ifndef CLOCK_MONOTONIC
198# undef EV_USE_MONOTONIC 270# undef EV_USE_MONOTONIC
199# define EV_USE_MONOTONIC 0 271# define EV_USE_MONOTONIC 0
200#endif 272#endif
… …
202#ifndef CLOCK_REALTIME 274#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME 275# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0 276# define EV_USE_REALTIME 0
205#endif 277#endif
206 278
279#if !EV_STAT_ENABLE
280# undef EV_USE_INOTIFY
281# define EV_USE_INOTIFY 0
282#endif
283
284#if !EV_USE_NANOSLEEP
285# ifndef _WIN32
286# include <sys/select.h>
287# endif
288#endif
289
290#if EV_USE_INOTIFY
291# include <sys/inotify.h>
292#endif
293
207#if EV_SELECT_IS_WINSOCKET 294#if EV_SELECT_IS_WINSOCKET
208# include <winsock.h> 295# include <winsock.h>
209#endif 296#endif
210 297
211#if !EV_STAT_ENABLE 298#if EV_USE_EVENTFD
212# define EV_USE_INOTIFY 0 299/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
300# include <stdint.h>
301# ifdef __cplusplus
302extern "C" {
213#endif 303# endif
214 304int eventfd (unsigned int initval, int flags);
215#if EV_USE_INOTIFY 305# ifdef __cplusplus
216# include <sys/inotify.h> 306}
307# endif
217#endif 308#endif
218 309
219/**/ 310/**/
311
312#if EV_VERIFY >= 3
313# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
314#else
315# define EV_FREQUENT_CHECK do { } while (0)
316#endif
220 317
221/* 318/*
222 * This is used to avoid floating point rounding problems. 319 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics 320 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding 321 * to ensure progress, time-wise, even when rounding
… …
230 327
231#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 328#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
232#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 329#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
233/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ 330/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
234 331
235#if __GNUC__ >= 3 332#if __GNUC__ >= 4
236# define expect(expr,value) __builtin_expect ((expr),(value)) 333# define expect(expr,value) __builtin_expect ((expr),(value))
237# define noinline __attribute__ ((noinline)) 334# define noinline __attribute__ ((noinline))
238#else 335#else
239# define expect(expr,value) (expr) 336# define expect(expr,value) (expr)
240# define noinline 337# define noinline
241# if __STDC_VERSION__ < 199901L 338# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
242# define inline 339# define inline
243# endif 340# endif
244#endif 341#endif
245 342
246#define expect_false(expr) expect ((expr) != 0, 0) 343#define expect_false(expr) expect ((expr) != 0, 0)
… …
261 358
262typedef ev_watcher *W; 359typedef ev_watcher *W;
263typedef ev_watcher_list *WL; 360typedef ev_watcher_list *WL;
264typedef ev_watcher_time *WT; 361typedef ev_watcher_time *WT;
265 362
363#define ev_active(w) ((W)(w))->active
364#define ev_at(w) ((WT)(w))->at
365
366#if EV_USE_MONOTONIC
367/* sig_atomic_t is used to avoid per-thread variables or locking but still */
368/* giving it a reasonably high chance of working on typical architetcures */
266static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 369static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
370#endif
267 371
268#ifdef _WIN32 372#ifdef _WIN32
269# include "ev_win32.c" 373# include "ev_win32.c"
270#endif 374#endif
271 375
… …
292 perror (msg); 396 perror (msg);
293 abort (); 397 abort ();
294 } 398 }
295} 399}
296 400
401static void *
402ev_realloc_emul (void *ptr, long size)
403{
404 /* some systems, notably openbsd and darwin, fail to properly
405 * implement realloc (x, 0) (as required by both ansi c-98 and
406 * the single unix specification, so work around them here.
407 */
408
409 if (size)
410 return realloc (ptr, size);
411
412 free (ptr);
413 return 0;
414}
415
297static void *(*alloc)(void *ptr, long size); 416static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
298 417
299void 418void
300ev_set_allocator (void *(*cb)(void *ptr, long size)) 419ev_set_allocator (void *(*cb)(void *ptr, long size))
301{ 420{
302 alloc = cb; 421 alloc = cb;
303} 422}
304 423
305inline_speed void * 424inline_speed void *
306ev_realloc (void *ptr, long size) 425ev_realloc (void *ptr, long size)
307{ 426{
308 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 427 ptr = alloc (ptr, size);
309 428
310 if (!ptr && size) 429 if (!ptr && size)
311 { 430 {
312 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 431 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
313 abort (); 432 abort ();
… …
336 W w; 455 W w;
337 int events; 456 int events;
338} ANPENDING; 457} ANPENDING;
339 458
340#if EV_USE_INOTIFY 459#if EV_USE_INOTIFY
460/* hash table entry per inotify-id */
341typedef struct 461typedef struct
342{ 462{
343 WL head; 463 WL head;
344} ANFS; 464} ANFS;
465#endif
466
467/* Heap Entry */
468#if EV_HEAP_CACHE_AT
469 typedef struct {
470 ev_tstamp at;
471 WT w;
472 } ANHE;
473
474 #define ANHE_w(he) (he).w /* access watcher, read-write */
475 #define ANHE_at(he) (he).at /* access cached at, read-only */
476 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
477#else
478 typedef WT ANHE;
479
480 #define ANHE_w(he) (he)
481 #define ANHE_at(he) (he)->at
482 #define ANHE_at_cache(he)
345#endif 483#endif
346 484
347#if EV_MULTIPLICITY 485#if EV_MULTIPLICITY
348 486
349 struct ev_loop 487 struct ev_loop
… …
407{ 545{
408 return ev_rt_now; 546 return ev_rt_now;
409} 547}
410#endif 548#endif
411 549
550void
551ev_sleep (ev_tstamp delay)
552{
553 if (delay > 0.)
554 {
555#if EV_USE_NANOSLEEP
556 struct timespec ts;
557
558 ts.tv_sec = (time_t)delay;
559 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
560
561 nanosleep (&ts, 0);
562#elif defined(_WIN32)
563 Sleep ((unsigned long)(delay * 1e3));
564#else
565 struct timeval tv;
566
567 tv.tv_sec = (time_t)delay;
568 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
569
570 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
571 /* somehting nto guaranteed by newer posix versions, but guaranteed */
572 /* by older ones */
573 select (0, 0, 0, 0, &tv);
574#endif
575 }
576}
577
578/*****************************************************************************/
579
580#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
581
412int inline_size 582int inline_size
413array_nextsize (int elem, int cur, int cnt) 583array_nextsize (int elem, int cur, int cnt)
414{ 584{
415 int ncur = cur + 1; 585 int ncur = cur + 1;
416 586
417 do 587 do
418 ncur <<= 1; 588 ncur <<= 1;
419 while (cnt > ncur); 589 while (cnt > ncur);
420 590
421 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ 591 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
422 if (elem * ncur > 4096) 592 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
423 { 593 {
424 ncur *= elem; 594 ncur *= elem;
425 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; 595 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
426 ncur = ncur - sizeof (void *) * 4; 596 ncur = ncur - sizeof (void *) * 4;
427 ncur /= elem; 597 ncur /= elem;
428 } 598 }
429 599
430 return ncur; 600 return ncur;
… …
541 events |= (unsigned char)w->events; 711 events |= (unsigned char)w->events;
542 712
543#if EV_SELECT_IS_WINSOCKET 713#if EV_SELECT_IS_WINSOCKET
544 if (events) 714 if (events)
545 { 715 {
546 unsigned long argp; 716 unsigned long arg;
717 #ifdef EV_FD_TO_WIN32_HANDLE
718 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
719 #else
547 anfd->handle = _get_osfhandle (fd); 720 anfd->handle = _get_osfhandle (fd);
721 #endif
548 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 722 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
549 } 723 }
550#endif 724#endif
551 725
552 { 726 {
553 unsigned char o_events = anfd->events; 727 unsigned char o_events = anfd->events;
… …
606{ 780{
607 int fd; 781 int fd;
608 782
609 for (fd = 0; fd < anfdmax; ++fd) 783 for (fd = 0; fd < anfdmax; ++fd)
610 if (anfds [fd].events) 784 if (anfds [fd].events)
611 if (!fd_valid (fd) == -1 && errno == EBADF) 785 if (!fd_valid (fd) && errno == EBADF)
612 fd_kill (EV_A_ fd); 786 fd_kill (EV_A_ fd);
613} 787}
614 788
615/* called on ENOMEM in select/poll to kill some fds and retry */ 789/* called on ENOMEM in select/poll to kill some fds and retry */
616static void noinline 790static void noinline
… …
640 } 814 }
641} 815}
642 816
643/*****************************************************************************/ 817/*****************************************************************************/
644 818
819/*
820 * the heap functions want a real array index. array index 0 uis guaranteed to not
821 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
822 * the branching factor of the d-tree.
823 */
824
825/*
826 * at the moment we allow libev the luxury of two heaps,
827 * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
828 * which is more cache-efficient.
829 * the difference is about 5% with 50000+ watchers.
830 */
831#if EV_USE_4HEAP
832
833#define DHEAP 4
834#define HEAP0 (DHEAP - 1) /* index of first element in heap */
835#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
836#define UPHEAP_DONE(p,k) ((p) == (k))
837
838/* away from the root */
645void inline_speed 839void inline_speed
646upheap (WT *heap, int k) 840downheap (ANHE *heap, int N, int k)
647{ 841{
648 WT w = heap [k]; 842 ANHE he = heap [k];
843 ANHE *E = heap + N + HEAP0;
649 844
650 while (k) 845 for (;;)
651 { 846 {
652 int p = (k - 1) >> 1; 847 ev_tstamp minat;
848 ANHE *minpos;
849 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
653 850
654 if (heap [p]->at <= w->at) 851 /* find minimum child */
852 if (expect_true (pos + DHEAP - 1 < E))
853 {
854 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
855 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
856 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
857 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
858 }
859 else if (pos < E)
860 {
861 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
862 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
863 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
864 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
865 }
866 else
655 break; 867 break;
656 868
869 if (ANHE_at (he) <= minat)
870 break;
871
872 heap [k] = *minpos;
873 ev_active (ANHE_w (*minpos)) = k;
874
875 k = minpos - heap;
876 }
877
878 heap [k] = he;
879 ev_active (ANHE_w (he)) = k;
880}
881
882#else /* 4HEAP */
883
884#define HEAP0 1
885#define HPARENT(k) ((k) >> 1)
886#define UPHEAP_DONE(p,k) (!(p))
887
888/* away from the root */
889void inline_speed
890downheap (ANHE *heap, int N, int k)
891{
892 ANHE he = heap [k];
893
894 for (;;)
895 {
896 int c = k << 1;
897
898 if (c > N + HEAP0 - 1)
899 break;
900
901 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
902 ? 1 : 0;
903
904 if (ANHE_at (he) <= ANHE_at (heap [c]))
905 break;
906
907 heap [k] = heap [c];
908 ev_active (ANHE_w (heap [k])) = k;
909
910 k = c;
911 }
912
913 heap [k] = he;
914 ev_active (ANHE_w (he)) = k;
915}
916#endif
917
918/* towards the root */
919void inline_speed
920upheap (ANHE *heap, int k)
921{
922 ANHE he = heap [k];
923
924 for (;;)
925 {
926 int p = HPARENT (k);
927
928 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
929 break;
930
657 heap [k] = heap [p]; 931 heap [k] = heap [p];
658 ((W)heap [k])->active = k + 1; 932 ev_active (ANHE_w (heap [k])) = k;
659 k = p; 933 k = p;
660 } 934 }
661 935
662 heap [k] = w; 936 heap [k] = he;
663 ((W)heap [k])->active = k + 1; 937 ev_active (ANHE_w (he)) = k;
664}
665
666void inline_speed
667downheap (WT *heap, int N, int k)
668{
669 WT w = heap [k];
670
671 for (;;)
672 {
673 int c = (k << 1) + 1;
674
675 if (c >= N)
676 break;
677
678 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
679 ? 1 : 0;
680
681 if (w->at <= heap [c]->at)
682 break;
683
684 heap [k] = heap [c];
685 ((W)heap [k])->active = k + 1;
686
687 k = c;
688 }
689
690 heap [k] = w;
691 ((W)heap [k])->active = k + 1;
692} 938}
693 939
694void inline_size 940void inline_size
695adjustheap (WT *heap, int N, int k) 941adjustheap (ANHE *heap, int N, int k)
696{ 942{
943 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
697 upheap (heap, k); 944 upheap (heap, k);
945 else
698 downheap (heap, N, k); 946 downheap (heap, N, k);
947}
948
949/* rebuild the heap: this function is used only once and executed rarely */
950void inline_size
951reheap (ANHE *heap, int N)
952{
953 int i;
954
955 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
956 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
957 for (i = 0; i < N; ++i)
958 upheap (heap, i + HEAP0);
699} 959}
700 960
701/*****************************************************************************/ 961/*****************************************************************************/
702 962
703typedef struct 963typedef struct
704{ 964{
705 WL head; 965 WL head;
706 sig_atomic_t volatile gotsig; 966 EV_ATOMIC_T gotsig;
707} ANSIG; 967} ANSIG;
708 968
709static ANSIG *signals; 969static ANSIG *signals;
710static int signalmax; 970static int signalmax;
711 971
712static int sigpipe [2]; 972static EV_ATOMIC_T gotsig;
713static sig_atomic_t volatile gotsig;
714static ev_io sigev;
715 973
716void inline_size 974void inline_size
717signals_init (ANSIG *base, int count) 975signals_init (ANSIG *base, int count)
718{ 976{
719 while (count--) 977 while (count--)
… …
723 981
724 ++base; 982 ++base;
725 } 983 }
726} 984}
727 985
728static void 986/*****************************************************************************/
729sighandler (int signum)
730{
731#if _WIN32
732 signal (signum, sighandler);
733#endif
734
735 signals [signum - 1].gotsig = 1;
736
737 if (!gotsig)
738 {
739 int old_errno = errno;
740 gotsig = 1;
741 write (sigpipe [1], &signum, 1);
742 errno = old_errno;
743 }
744}
745
746void noinline
747ev_feed_signal_event (EV_P_ int signum)
748{
749 WL w;
750
751#if EV_MULTIPLICITY
752 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
753#endif
754
755 --signum;
756
757 if (signum < 0 || signum >= signalmax)
758 return;
759
760 signals [signum].gotsig = 0;
761
762 for (w = signals [signum].head; w; w = w->next)
763 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
764}
765
766static void
767sigcb (EV_P_ ev_io *iow, int revents)
768{
769 int signum;
770
771 read (sigpipe [0], &revents, 1);
772 gotsig = 0;
773
774 for (signum = signalmax; signum--; )
775 if (signals [signum].gotsig)
776 ev_feed_signal_event (EV_A_ signum + 1);
777}
778 987
779void inline_speed 988void inline_speed
780fd_intern (int fd) 989fd_intern (int fd)
781{ 990{
782#ifdef _WIN32 991#ifdef _WIN32
783 int arg = 1; 992 unsigned long arg = 1;
784 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 993 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
785#else 994#else
786 fcntl (fd, F_SETFD, FD_CLOEXEC); 995 fcntl (fd, F_SETFD, FD_CLOEXEC);
787 fcntl (fd, F_SETFL, O_NONBLOCK); 996 fcntl (fd, F_SETFL, O_NONBLOCK);
788#endif 997#endif
789} 998}
790 999
791static void noinline 1000static void noinline
792siginit (EV_P) 1001evpipe_init (EV_P)
793{ 1002{
1003 if (!ev_is_active (&pipeev))
1004 {
1005#if EV_USE_EVENTFD
1006 if ((evfd = eventfd (0, 0)) >= 0)
1007 {
1008 evpipe [0] = -1;
1009 fd_intern (evfd);
1010 ev_io_set (&pipeev, evfd, EV_READ);
1011 }
1012 else
1013#endif
1014 {
1015 while (pipe (evpipe))
1016 syserr ("(libev) error creating signal/async pipe");
1017
794 fd_intern (sigpipe [0]); 1018 fd_intern (evpipe [0]);
795 fd_intern (sigpipe [1]); 1019 fd_intern (evpipe [1]);
1020 ev_io_set (&pipeev, evpipe [0], EV_READ);
1021 }
796 1022
797 ev_io_set (&sigev, sigpipe [0], EV_READ);
798 ev_io_start (EV_A_ &sigev); 1023 ev_io_start (EV_A_ &pipeev);
799 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1024 ev_unref (EV_A); /* watcher should not keep loop alive */
1025 }
1026}
1027
1028void inline_size
1029evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1030{
1031 if (!*flag)
1032 {
1033 int old_errno = errno; /* save errno because write might clobber it */
1034
1035 *flag = 1;
1036
1037#if EV_USE_EVENTFD
1038 if (evfd >= 0)
1039 {
1040 uint64_t counter = 1;
1041 write (evfd, &counter, sizeof (uint64_t));
1042 }
1043 else
1044#endif
1045 write (evpipe [1], &old_errno, 1);
1046
1047 errno = old_errno;
1048 }
1049}
1050
1051static void
1052pipecb (EV_P_ ev_io *iow, int revents)
1053{
1054#if EV_USE_EVENTFD
1055 if (evfd >= 0)
1056 {
1057 uint64_t counter;
1058 read (evfd, &counter, sizeof (uint64_t));
1059 }
1060 else
1061#endif
1062 {
1063 char dummy;
1064 read (evpipe [0], &dummy, 1);
1065 }
1066
1067 if (gotsig && ev_is_default_loop (EV_A))
1068 {
1069 int signum;
1070 gotsig = 0;
1071
1072 for (signum = signalmax; signum--; )
1073 if (signals [signum].gotsig)
1074 ev_feed_signal_event (EV_A_ signum + 1);
1075 }
1076
1077#if EV_ASYNC_ENABLE
1078 if (gotasync)
1079 {
1080 int i;
1081 gotasync = 0;
1082
1083 for (i = asynccnt; i--; )
1084 if (asyncs [i]->sent)
1085 {
1086 asyncs [i]->sent = 0;
1087 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1088 }
1089 }
1090#endif
800} 1091}
801 1092
802/*****************************************************************************/ 1093/*****************************************************************************/
803 1094
1095static void
1096ev_sighandler (int signum)
1097{
1098#if EV_MULTIPLICITY
1099 struct ev_loop *loop = &default_loop_struct;
1100#endif
1101
1102#if _WIN32
1103 signal (signum, ev_sighandler);
1104#endif
1105
1106 signals [signum - 1].gotsig = 1;
1107 evpipe_write (EV_A_ &gotsig);
1108}
1109
1110void noinline
1111ev_feed_signal_event (EV_P_ int signum)
1112{
1113 WL w;
1114
1115#if EV_MULTIPLICITY
1116 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1117#endif
1118
1119 --signum;
1120
1121 if (signum < 0 || signum >= signalmax)
1122 return;
1123
1124 signals [signum].gotsig = 0;
1125
1126 for (w = signals [signum].head; w; w = w->next)
1127 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1128}
1129
1130/*****************************************************************************/
1131
804static WL childs [EV_PID_HASHSIZE]; 1132static WL childs [EV_PID_HASHSIZE];
805 1133
806#ifndef _WIN32 1134#ifndef _WIN32
807 1135
808static ev_signal childev; 1136static ev_signal childev;
809 1137
1138#ifndef WIFCONTINUED
1139# define WIFCONTINUED(status) 0
1140#endif
1141
810void inline_speed 1142void inline_speed
811child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 1143child_reap (EV_P_ int chain, int pid, int status)
812{ 1144{
813 ev_child *w; 1145 ev_child *w;
1146 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
814 1147
815 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1148 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1149 {
816 if (w->pid == pid || !w->pid) 1150 if ((w->pid == pid || !w->pid)
1151 && (!traced || (w->flags & 1)))
817 { 1152 {
818 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ 1153 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
819 w->rpid = pid; 1154 w->rpid = pid;
820 w->rstatus = status; 1155 w->rstatus = status;
821 ev_feed_event (EV_A_ (W)w, EV_CHILD); 1156 ev_feed_event (EV_A_ (W)w, EV_CHILD);
822 } 1157 }
1158 }
823} 1159}
824 1160
825#ifndef WCONTINUED 1161#ifndef WCONTINUED
826# define WCONTINUED 0 1162# define WCONTINUED 0
827#endif 1163#endif
… …
836 if (!WCONTINUED 1172 if (!WCONTINUED
837 || errno != EINVAL 1173 || errno != EINVAL
838 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) 1174 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
839 return; 1175 return;
840 1176
841 /* make sure we are called again until all childs have been reaped */ 1177 /* make sure we are called again until all children have been reaped */
842 /* we need to do it this way so that the callback gets called before we continue */ 1178 /* we need to do it this way so that the callback gets called before we continue */
843 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1179 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
844 1180
845 child_reap (EV_A_ sw, pid, pid, status); 1181 child_reap (EV_A_ pid, pid, status);
846 if (EV_PID_HASHSIZE > 1) 1182 if (EV_PID_HASHSIZE > 1)
847 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1183 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
848} 1184}
849 1185
850#endif 1186#endif
851 1187
852/*****************************************************************************/ 1188/*****************************************************************************/
… …
924} 1260}
925 1261
926unsigned int 1262unsigned int
927ev_embeddable_backends (void) 1263ev_embeddable_backends (void)
928{ 1264{
929 return EVBACKEND_EPOLL 1265 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
930 | EVBACKEND_KQUEUE 1266
931 | EVBACKEND_PORT; 1267 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1268 /* please fix it and tell me how to detect the fix */
1269 flags &= ~EVBACKEND_EPOLL;
1270
1271 return flags;
932} 1272}
933 1273
934unsigned int 1274unsigned int
935ev_backend (EV_P) 1275ev_backend (EV_P)
936{ 1276{
… …
939 1279
940unsigned int 1280unsigned int
941ev_loop_count (EV_P) 1281ev_loop_count (EV_P)
942{ 1282{
943 return loop_count; 1283 return loop_count;
1284}
1285
1286void
1287ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1288{
1289 io_blocktime = interval;
1290}
1291
1292void
1293ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1294{
1295 timeout_blocktime = interval;
944} 1296}
945 1297
946static void noinline 1298static void noinline
947loop_init (EV_P_ unsigned int flags) 1299loop_init (EV_P_ unsigned int flags)
948{ 1300{
… …
954 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1306 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
955 have_monotonic = 1; 1307 have_monotonic = 1;
956 } 1308 }
957#endif 1309#endif
958 1310
959 ev_rt_now = ev_time (); 1311 ev_rt_now = ev_time ();
960 mn_now = get_clock (); 1312 mn_now = get_clock ();
961 now_floor = mn_now; 1313 now_floor = mn_now;
962 rtmn_diff = ev_rt_now - mn_now; 1314 rtmn_diff = ev_rt_now - mn_now;
1315
1316 io_blocktime = 0.;
1317 timeout_blocktime = 0.;
1318 backend = 0;
1319 backend_fd = -1;
1320 gotasync = 0;
1321#if EV_USE_INOTIFY
1322 fs_fd = -2;
1323#endif
963 1324
964 /* pid check not overridable via env */ 1325 /* pid check not overridable via env */
965#ifndef _WIN32 1326#ifndef _WIN32
966 if (flags & EVFLAG_FORKCHECK) 1327 if (flags & EVFLAG_FORKCHECK)
967 curpid = getpid (); 1328 curpid = getpid ();
… …
970 if (!(flags & EVFLAG_NOENV) 1331 if (!(flags & EVFLAG_NOENV)
971 && !enable_secure () 1332 && !enable_secure ()
972 && getenv ("LIBEV_FLAGS")) 1333 && getenv ("LIBEV_FLAGS"))
973 flags = atoi (getenv ("LIBEV_FLAGS")); 1334 flags = atoi (getenv ("LIBEV_FLAGS"));
974 1335
975 if (!(flags & 0x0000ffffUL)) 1336 if (!(flags & 0x0000ffffU))
976 flags |= ev_recommended_backends (); 1337 flags |= ev_recommended_backends ();
977
978 backend = 0;
979 backend_fd = -1;
980#if EV_USE_INOTIFY
981 fs_fd = -2;
982#endif
983 1338
984#if EV_USE_PORT 1339#if EV_USE_PORT
985 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1340 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
986#endif 1341#endif
987#if EV_USE_KQUEUE 1342#if EV_USE_KQUEUE
… …
995#endif 1350#endif
996#if EV_USE_SELECT 1351#if EV_USE_SELECT
997 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1352 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
998#endif 1353#endif
999 1354
1000 ev_init (&sigev, sigcb); 1355 ev_init (&pipeev, pipecb);
1001 ev_set_priority (&sigev, EV_MAXPRI); 1356 ev_set_priority (&pipeev, EV_MAXPRI);
1002 } 1357 }
1003} 1358}
1004 1359
1005static void noinline 1360static void noinline
1006loop_destroy (EV_P) 1361loop_destroy (EV_P)
1007{ 1362{
1008 int i; 1363 int i;
1364
1365 if (ev_is_active (&pipeev))
1366 {
1367 ev_ref (EV_A); /* signal watcher */
1368 ev_io_stop (EV_A_ &pipeev);
1369
1370#if EV_USE_EVENTFD
1371 if (evfd >= 0)
1372 close (evfd);
1373#endif
1374
1375 if (evpipe [0] >= 0)
1376 {
1377 close (evpipe [0]);
1378 close (evpipe [1]);
1379 }
1380 }
1009 1381
1010#if EV_USE_INOTIFY 1382#if EV_USE_INOTIFY
1011 if (fs_fd >= 0) 1383 if (fs_fd >= 0)
1012 close (fs_fd); 1384 close (fs_fd);
1013#endif 1385#endif
… …
1036 array_free (pending, [i]); 1408 array_free (pending, [i]);
1037#if EV_IDLE_ENABLE 1409#if EV_IDLE_ENABLE
1038 array_free (idle, [i]); 1410 array_free (idle, [i]);
1039#endif 1411#endif
1040 } 1412 }
1413
1414 ev_free (anfds); anfdmax = 0;
1041 1415
1042 /* have to use the microsoft-never-gets-it-right macro */ 1416 /* have to use the microsoft-never-gets-it-right macro */
1043 array_free (fdchange, EMPTY); 1417 array_free (fdchange, EMPTY);
1044 array_free (timer, EMPTY); 1418 array_free (timer, EMPTY);
1045#if EV_PERIODIC_ENABLE 1419#if EV_PERIODIC_ENABLE
1046 array_free (periodic, EMPTY); 1420 array_free (periodic, EMPTY);
1047#endif 1421#endif
1422#if EV_FORK_ENABLE
1423 array_free (fork, EMPTY);
1424#endif
1048 array_free (prepare, EMPTY); 1425 array_free (prepare, EMPTY);
1049 array_free (check, EMPTY); 1426 array_free (check, EMPTY);
1427#if EV_ASYNC_ENABLE
1428 array_free (async, EMPTY);
1429#endif
1050 1430
1051 backend = 0; 1431 backend = 0;
1052} 1432}
1053 1433
1434#if EV_USE_INOTIFY
1054void inline_size infy_fork (EV_P); 1435void inline_size infy_fork (EV_P);
1436#endif
1055 1437
1056void inline_size 1438void inline_size
1057loop_fork (EV_P) 1439loop_fork (EV_P)
1058{ 1440{
1059#if EV_USE_PORT 1441#if EV_USE_PORT
… …
1067#endif 1449#endif
1068#if EV_USE_INOTIFY 1450#if EV_USE_INOTIFY
1069 infy_fork (EV_A); 1451 infy_fork (EV_A);
1070#endif 1452#endif
1071 1453
1072 if (ev_is_active (&sigev)) 1454 if (ev_is_active (&pipeev))
1073 { 1455 {
1074 /* default loop */ 1456 /* this "locks" the handlers against writing to the pipe */
1457 /* while we modify the fd vars */
1458 gotsig = 1;
1459#if EV_ASYNC_ENABLE
1460 gotasync = 1;
1461#endif
1075 1462
1076 ev_ref (EV_A); 1463 ev_ref (EV_A);
1077 ev_io_stop (EV_A_ &sigev); 1464 ev_io_stop (EV_A_ &pipeev);
1465
1466#if EV_USE_EVENTFD
1467 if (evfd >= 0)
1468 close (evfd);
1469#endif
1470
1471 if (evpipe [0] >= 0)
1472 {
1078 close (sigpipe [0]); 1473 close (evpipe [0]);
1079 close (sigpipe [1]); 1474 close (evpipe [1]);
1475 }
1080 1476
1081 while (pipe (sigpipe))
1082 syserr ("(libev) error creating pipe");
1083
1084 siginit (EV_A); 1477 evpipe_init (EV_A);
1478 /* now iterate over everything, in case we missed something */
1479 pipecb (EV_A_ &pipeev, EV_READ);
1085 } 1480 }
1086 1481
1087 postfork = 0; 1482 postfork = 0;
1088} 1483}
1089 1484
1090#if EV_MULTIPLICITY 1485#if EV_MULTIPLICITY
1486
1091struct ev_loop * 1487struct ev_loop *
1092ev_loop_new (unsigned int flags) 1488ev_loop_new (unsigned int flags)
1093{ 1489{
1094 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1490 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1095 1491
… …
1111} 1507}
1112 1508
1113void 1509void
1114ev_loop_fork (EV_P) 1510ev_loop_fork (EV_P)
1115{ 1511{
1116 postfork = 1; 1512 postfork = 1; /* must be in line with ev_default_fork */
1117} 1513}
1118 1514
1515#if EV_VERIFY
1516static void noinline
1517verify_watcher (EV_P_ W w)
1518{
1519 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1520
1521 if (w->pending)
1522 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1523}
1524
1525static void noinline
1526verify_heap (EV_P_ ANHE *heap, int N)
1527{
1528 int i;
1529
1530 for (i = HEAP0; i < N + HEAP0; ++i)
1531 {
1532 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1533 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1534 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1535
1536 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1537 }
1538}
1539
1540static void noinline
1541array_verify (EV_P_ W *ws, int cnt)
1542{
1543 while (cnt--)
1544 {
1545 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1546 verify_watcher (EV_A_ ws [cnt]);
1547 }
1548}
1549#endif
1550
1551void
1552ev_loop_verify (EV_P)
1553{
1554#if EV_VERIFY
1555 int i;
1556 WL w;
1557
1558 assert (activecnt >= -1);
1559
1560 assert (fdchangemax >= fdchangecnt);
1561 for (i = 0; i < fdchangecnt; ++i)
1562 assert (("negative fd in fdchanges", fdchanges [i] >= 0));
1563
1564 assert (anfdmax >= 0);
1565 for (i = 0; i < anfdmax; ++i)
1566 for (w = anfds [i].head; w; w = w->next)
1567 {
1568 verify_watcher (EV_A_ (W)w);
1569 assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
1570 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1571 }
1572
1573 assert (timermax >= timercnt);
1574 verify_heap (EV_A_ timers, timercnt);
1575
1576#if EV_PERIODIC_ENABLE
1577 assert (periodicmax >= periodiccnt);
1578 verify_heap (EV_A_ periodics, periodiccnt);
1579#endif
1580
1581 for (i = NUMPRI; i--; )
1582 {
1583 assert (pendingmax [i] >= pendingcnt [i]);
1584#if EV_IDLE_ENABLE
1585 assert (idleall >= 0);
1586 assert (idlemax [i] >= idlecnt [i]);
1587 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1588#endif
1589 }
1590
1591#if EV_FORK_ENABLE
1592 assert (forkmax >= forkcnt);
1593 array_verify (EV_A_ (W *)forks, forkcnt);
1594#endif
1595
1596#if EV_ASYNC_ENABLE
1597 assert (asyncmax >= asynccnt);
1598 array_verify (EV_A_ (W *)asyncs, asynccnt);
1599#endif
1600
1601 assert (preparemax >= preparecnt);
1602 array_verify (EV_A_ (W *)prepares, preparecnt);
1603
1604 assert (checkmax >= checkcnt);
1605 array_verify (EV_A_ (W *)checks, checkcnt);
1606
1607# if 0
1608 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1609 for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1119#endif 1610# endif
1611#endif
1612}
1613
1614#endif /* multiplicity */
1120 1615
1121#if EV_MULTIPLICITY 1616#if EV_MULTIPLICITY
1122struct ev_loop * 1617struct ev_loop *
1123ev_default_loop_init (unsigned int flags) 1618ev_default_loop_init (unsigned int flags)
1124#else 1619#else
1125int 1620int
1126ev_default_loop (unsigned int flags) 1621ev_default_loop (unsigned int flags)
1127#endif 1622#endif
1128{ 1623{
1129 if (sigpipe [0] == sigpipe [1])
1130 if (pipe (sigpipe))
1131 return 0;
1132
1133 if (!ev_default_loop_ptr) 1624 if (!ev_default_loop_ptr)
1134 { 1625 {
1135#if EV_MULTIPLICITY 1626#if EV_MULTIPLICITY
1136 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1627 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1137#else 1628#else
… …
1140 1631
1141 loop_init (EV_A_ flags); 1632 loop_init (EV_A_ flags);
1142 1633
1143 if (ev_backend (EV_A)) 1634 if (ev_backend (EV_A))
1144 { 1635 {
1145 siginit (EV_A);
1146
1147#ifndef _WIN32 1636#ifndef _WIN32
1148 ev_signal_init (&childev, childcb, SIGCHLD); 1637 ev_signal_init (&childev, childcb, SIGCHLD);
1149 ev_set_priority (&childev, EV_MAXPRI); 1638 ev_set_priority (&childev, EV_MAXPRI);
1150 ev_signal_start (EV_A_ &childev); 1639 ev_signal_start (EV_A_ &childev);
1151 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1640 ev_unref (EV_A); /* child watcher should not keep loop alive */
… …
1168#ifndef _WIN32 1657#ifndef _WIN32
1169 ev_ref (EV_A); /* child watcher */ 1658 ev_ref (EV_A); /* child watcher */
1170 ev_signal_stop (EV_A_ &childev); 1659 ev_signal_stop (EV_A_ &childev);
1171#endif 1660#endif
1172 1661
1173 ev_ref (EV_A); /* signal watcher */
1174 ev_io_stop (EV_A_ &sigev);
1175
1176 close (sigpipe [0]); sigpipe [0] = 0;
1177 close (sigpipe [1]); sigpipe [1] = 0;
1178
1179 loop_destroy (EV_A); 1662 loop_destroy (EV_A);
1180} 1663}
1181 1664
1182void 1665void
1183ev_default_fork (void) 1666ev_default_fork (void)
… …
1185#if EV_MULTIPLICITY 1668#if EV_MULTIPLICITY
1186 struct ev_loop *loop = ev_default_loop_ptr; 1669 struct ev_loop *loop = ev_default_loop_ptr;
1187#endif 1670#endif
1188 1671
1189 if (backend) 1672 if (backend)
1190 postfork = 1; 1673 postfork = 1; /* must be in line with ev_loop_fork */
1191} 1674}
1192 1675
1193/*****************************************************************************/ 1676/*****************************************************************************/
1194 1677
1195void 1678void
… …
1212 { 1695 {
1213 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1696 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1214 1697
1215 p->w->pending = 0; 1698 p->w->pending = 0;
1216 EV_CB_INVOKE (p->w, p->events); 1699 EV_CB_INVOKE (p->w, p->events);
1700 EV_FREQUENT_CHECK;
1217 } 1701 }
1218 } 1702 }
1219} 1703}
1220
1221void inline_size
1222timers_reify (EV_P)
1223{
1224 while (timercnt && ((WT)timers [0])->at <= mn_now)
1225 {
1226 ev_timer *w = (ev_timer *)timers [0];
1227
1228 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1229
1230 /* first reschedule or stop timer */
1231 if (w->repeat)
1232 {
1233 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1234
1235 ((WT)w)->at += w->repeat;
1236 if (((WT)w)->at < mn_now)
1237 ((WT)w)->at = mn_now;
1238
1239 downheap (timers, timercnt, 0);
1240 }
1241 else
1242 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1243
1244 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1245 }
1246}
1247
1248#if EV_PERIODIC_ENABLE
1249void inline_size
1250periodics_reify (EV_P)
1251{
1252 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1253 {
1254 ev_periodic *w = (ev_periodic *)periodics [0];
1255
1256 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1257
1258 /* first reschedule or stop timer */
1259 if (w->reschedule_cb)
1260 {
1261 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1262 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1263 downheap (periodics, periodiccnt, 0);
1264 }
1265 else if (w->interval)
1266 {
1267 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1268 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1269 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1270 downheap (periodics, periodiccnt, 0);
1271 }
1272 else
1273 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1274
1275 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1276 }
1277}
1278
1279static void noinline
1280periodics_reschedule (EV_P)
1281{
1282 int i;
1283
1284 /* adjust periodics after time jump */
1285 for (i = 0; i < periodiccnt; ++i)
1286 {
1287 ev_periodic *w = (ev_periodic *)periodics [i];
1288
1289 if (w->reschedule_cb)
1290 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1291 else if (w->interval)
1292 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1293 }
1294
1295 /* now rebuild the heap */
1296 for (i = periodiccnt >> 1; i--; )
1297 downheap (periodics, periodiccnt, i);
1298}
1299#endif
1300 1704
1301#if EV_IDLE_ENABLE 1705#if EV_IDLE_ENABLE
1302void inline_size 1706void inline_size
1303idle_reify (EV_P) 1707idle_reify (EV_P)
1304{ 1708{
… …
1316 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); 1720 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1317 break; 1721 break;
1318 } 1722 }
1319 } 1723 }
1320 } 1724 }
1725}
1726#endif
1727
1728void inline_size
1729timers_reify (EV_P)
1730{
1731 EV_FREQUENT_CHECK;
1732
1733 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1734 {
1735 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1736
1737 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1738
1739 /* first reschedule or stop timer */
1740 if (w->repeat)
1741 {
1742 ev_at (w) += w->repeat;
1743 if (ev_at (w) < mn_now)
1744 ev_at (w) = mn_now;
1745
1746 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1747
1748 ANHE_at_cache (timers [HEAP0]);
1749 downheap (timers, timercnt, HEAP0);
1750 }
1751 else
1752 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1753
1754 EV_FREQUENT_CHECK;
1755 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1756 }
1757}
1758
1759#if EV_PERIODIC_ENABLE
1760void inline_size
1761periodics_reify (EV_P)
1762{
1763 EV_FREQUENT_CHECK;
1764
1765 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1766 {
1767 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1768
1769 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1770
1771 /* first reschedule or stop timer */
1772 if (w->reschedule_cb)
1773 {
1774 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1775
1776 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1777
1778 ANHE_at_cache (periodics [HEAP0]);
1779 downheap (periodics, periodiccnt, HEAP0);
1780 }
1781 else if (w->interval)
1782 {
1783 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1784 /* if next trigger time is not sufficiently in the future, put it there */
1785 /* this might happen because of floating point inexactness */
1786 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1787 {
1788 ev_at (w) += w->interval;
1789
1790 /* if interval is unreasonably low we might still have a time in the past */
1791 /* so correct this. this will make the periodic very inexact, but the user */
1792 /* has effectively asked to get triggered more often than possible */
1793 if (ev_at (w) < ev_rt_now)
1794 ev_at (w) = ev_rt_now;
1795 }
1796
1797 ANHE_at_cache (periodics [HEAP0]);
1798 downheap (periodics, periodiccnt, HEAP0);
1799 }
1800 else
1801 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1802
1803 EV_FREQUENT_CHECK;
1804 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1805 }
1806}
1807
1808static void noinline
1809periodics_reschedule (EV_P)
1810{
1811 int i;
1812
1813 /* adjust periodics after time jump */
1814 for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
1815 {
1816 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1817
1818 if (w->reschedule_cb)
1819 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1820 else if (w->interval)
1821 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1822
1823 ANHE_at_cache (periodics [i]);
1824 }
1825
1826 reheap (periodics, periodiccnt);
1321} 1827}
1322#endif 1828#endif
1323 1829
1324void inline_speed 1830void inline_speed
1325time_update (EV_P_ ev_tstamp max_block) 1831time_update (EV_P_ ev_tstamp max_block)
… …
1354 */ 1860 */
1355 for (i = 4; --i; ) 1861 for (i = 4; --i; )
1356 { 1862 {
1357 rtmn_diff = ev_rt_now - mn_now; 1863 rtmn_diff = ev_rt_now - mn_now;
1358 1864
1359 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1865 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1360 return; /* all is well */ 1866 return; /* all is well */
1361 1867
1362 ev_rt_now = ev_time (); 1868 ev_rt_now = ev_time ();
1363 mn_now = get_clock (); 1869 mn_now = get_clock ();
1364 now_floor = mn_now; 1870 now_floor = mn_now;
… …
1380#if EV_PERIODIC_ENABLE 1886#if EV_PERIODIC_ENABLE
1381 periodics_reschedule (EV_A); 1887 periodics_reschedule (EV_A);
1382#endif 1888#endif
1383 /* adjust timers. this is easy, as the offset is the same for all of them */ 1889 /* adjust timers. this is easy, as the offset is the same for all of them */
1384 for (i = 0; i < timercnt; ++i) 1890 for (i = 0; i < timercnt; ++i)
1891 {
1892 ANHE *he = timers + i + HEAP0;
1385 ((WT)timers [i])->at += ev_rt_now - mn_now; 1893 ANHE_w (*he)->at += ev_rt_now - mn_now;
1894 ANHE_at_cache (*he);
1895 }
1386 } 1896 }
1387 1897
1388 mn_now = ev_rt_now; 1898 mn_now = ev_rt_now;
1389 } 1899 }
1390} 1900}
… …
1399ev_unref (EV_P) 1909ev_unref (EV_P)
1400{ 1910{
1401 --activecnt; 1911 --activecnt;
1402} 1912}
1403 1913
1914void
1915ev_now_update (EV_P)
1916{
1917 time_update (EV_A_ 1e100);
1918}
1919
1404static int loop_done; 1920static int loop_done;
1405 1921
1406void 1922void
1407ev_loop (EV_P_ int flags) 1923ev_loop (EV_P_ int flags)
1408{ 1924{
1409 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) 1925 loop_done = EVUNLOOP_CANCEL;
1410 ? EVUNLOOP_ONE
1411 : EVUNLOOP_CANCEL;
1412 1926
1413 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 1927 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1414 1928
1415 do 1929 do
1416 { 1930 {
1931#if EV_VERIFY >= 2
1932 ev_loop_verify (EV_A);
1933#endif
1934
1417#ifndef _WIN32 1935#ifndef _WIN32
1418 if (expect_false (curpid)) /* penalise the forking check even more */ 1936 if (expect_false (curpid)) /* penalise the forking check even more */
1419 if (expect_false (getpid () != curpid)) 1937 if (expect_false (getpid () != curpid))
1420 { 1938 {
1421 curpid = getpid (); 1939 curpid = getpid ();
… …
1450 /* update fd-related kernel structures */ 1968 /* update fd-related kernel structures */
1451 fd_reify (EV_A); 1969 fd_reify (EV_A);
1452 1970
1453 /* calculate blocking time */ 1971 /* calculate blocking time */
1454 { 1972 {
1455 ev_tstamp block; 1973 ev_tstamp waittime = 0.;
1974 ev_tstamp sleeptime = 0.;
1456 1975
1457 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) 1976 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1458 block = 0.; /* do not block at all */
1459 else
1460 { 1977 {
1461 /* update time to cancel out callback processing overhead */ 1978 /* update time to cancel out callback processing overhead */
1462 time_update (EV_A_ 1e100); 1979 time_update (EV_A_ 1e100);
1463 1980
1464 block = MAX_BLOCKTIME; 1981 waittime = MAX_BLOCKTIME;
1465 1982
1466 if (timercnt) 1983 if (timercnt)
1467 { 1984 {
1468 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1985 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1469 if (block > to) block = to; 1986 if (waittime > to) waittime = to;
1470 } 1987 }
1471 1988
1472#if EV_PERIODIC_ENABLE 1989#if EV_PERIODIC_ENABLE
1473 if (periodiccnt) 1990 if (periodiccnt)
1474 { 1991 {
1475 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1992 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1476 if (block > to) block = to; 1993 if (waittime > to) waittime = to;
1477 } 1994 }
1478#endif 1995#endif
1479 1996
1480 if (expect_false (block < 0.)) block = 0.; 1997 if (expect_false (waittime < timeout_blocktime))
1998 waittime = timeout_blocktime;
1999
2000 sleeptime = waittime - backend_fudge;
2001
2002 if (expect_true (sleeptime > io_blocktime))
2003 sleeptime = io_blocktime;
2004
2005 if (sleeptime)
2006 {
2007 ev_sleep (sleeptime);
2008 waittime -= sleeptime;
2009 }
1481 } 2010 }
1482 2011
1483 ++loop_count; 2012 ++loop_count;
1484 backend_poll (EV_A_ block); 2013 backend_poll (EV_A_ waittime);
1485 2014
1486 /* update ev_rt_now, do magic */ 2015 /* update ev_rt_now, do magic */
1487 time_update (EV_A_ block); 2016 time_update (EV_A_ waittime + sleeptime);
1488 } 2017 }
1489 2018
1490 /* queue pending timers and reschedule them */ 2019 /* queue pending timers and reschedule them */
1491 timers_reify (EV_A); /* relative timers called last */ 2020 timers_reify (EV_A); /* relative timers called last */
1492#if EV_PERIODIC_ENABLE 2021#if EV_PERIODIC_ENABLE
… …
1501 /* queue check watchers, to be executed first */ 2030 /* queue check watchers, to be executed first */
1502 if (expect_false (checkcnt)) 2031 if (expect_false (checkcnt))
1503 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2032 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1504 2033
1505 call_pending (EV_A); 2034 call_pending (EV_A);
1506
1507 } 2035 }
1508 while (expect_true (activecnt && !loop_done)); 2036 while (expect_true (
2037 activecnt
2038 && !loop_done
2039 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2040 ));
1509 2041
1510 if (loop_done == EVUNLOOP_ONE) 2042 if (loop_done == EVUNLOOP_ONE)
1511 loop_done = EVUNLOOP_CANCEL; 2043 loop_done = EVUNLOOP_CANCEL;
1512} 2044}
1513 2045
… …
1602 if (expect_false (ev_is_active (w))) 2134 if (expect_false (ev_is_active (w)))
1603 return; 2135 return;
1604 2136
1605 assert (("ev_io_start called with negative fd", fd >= 0)); 2137 assert (("ev_io_start called with negative fd", fd >= 0));
1606 2138
2139 EV_FREQUENT_CHECK;
2140
1607 ev_start (EV_A_ (W)w, 1); 2141 ev_start (EV_A_ (W)w, 1);
1608 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2142 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1609 wlist_add (&anfds[fd].head, (WL)w); 2143 wlist_add (&anfds[fd].head, (WL)w);
1610 2144
1611 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2145 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1612 w->events &= ~EV_IOFDSET; 2146 w->events &= ~EV_IOFDSET;
2147
2148 EV_FREQUENT_CHECK;
1613} 2149}
1614 2150
1615void noinline 2151void noinline
1616ev_io_stop (EV_P_ ev_io *w) 2152ev_io_stop (EV_P_ ev_io *w)
1617{ 2153{
1618 clear_pending (EV_A_ (W)w); 2154 clear_pending (EV_A_ (W)w);
1619 if (expect_false (!ev_is_active (w))) 2155 if (expect_false (!ev_is_active (w)))
1620 return; 2156 return;
1621 2157
1622 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2158 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2159
2160 EV_FREQUENT_CHECK;
1623 2161
1624 wlist_del (&anfds[w->fd].head, (WL)w); 2162 wlist_del (&anfds[w->fd].head, (WL)w);
1625 ev_stop (EV_A_ (W)w); 2163 ev_stop (EV_A_ (W)w);
1626 2164
1627 fd_change (EV_A_ w->fd, 1); 2165 fd_change (EV_A_ w->fd, 1);
2166
2167 EV_FREQUENT_CHECK;
1628} 2168}
1629 2169
1630void noinline 2170void noinline
1631ev_timer_start (EV_P_ ev_timer *w) 2171ev_timer_start (EV_P_ ev_timer *w)
1632{ 2172{
1633 if (expect_false (ev_is_active (w))) 2173 if (expect_false (ev_is_active (w)))
1634 return; 2174 return;
1635 2175
1636 ((WT)w)->at += mn_now; 2176 ev_at (w) += mn_now;
1637 2177
1638 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2178 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1639 2179
2180 EV_FREQUENT_CHECK;
2181
2182 ++timercnt;
1640 ev_start (EV_A_ (W)w, ++timercnt); 2183 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1641 array_needsize (WT, timers, timermax, timercnt, EMPTY2); 2184 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1642 timers [timercnt - 1] = (WT)w; 2185 ANHE_w (timers [ev_active (w)]) = (WT)w;
1643 upheap (timers, timercnt - 1); 2186 ANHE_at_cache (timers [ev_active (w)]);
2187 upheap (timers, ev_active (w));
1644 2188
2189 EV_FREQUENT_CHECK;
2190
1645 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ 2191 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1646} 2192}
1647 2193
1648void noinline 2194void noinline
1649ev_timer_stop (EV_P_ ev_timer *w) 2195ev_timer_stop (EV_P_ ev_timer *w)
1650{ 2196{
1651 clear_pending (EV_A_ (W)w); 2197 clear_pending (EV_A_ (W)w);
1652 if (expect_false (!ev_is_active (w))) 2198 if (expect_false (!ev_is_active (w)))
1653 return; 2199 return;
1654 2200
1655 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); 2201 EV_FREQUENT_CHECK;
1656 2202
1657 { 2203 {
1658 int active = ((W)w)->active; 2204 int active = ev_active (w);
1659 2205
2206 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2207
2208 --timercnt;
2209
1660 if (expect_true (--active < --timercnt)) 2210 if (expect_true (active < timercnt + HEAP0))
1661 { 2211 {
1662 timers [active] = timers [timercnt]; 2212 timers [active] = timers [timercnt + HEAP0];
1663 adjustheap (timers, timercnt, active); 2213 adjustheap (timers, timercnt, active);
1664 } 2214 }
1665 } 2215 }
1666 2216
1667 ((WT)w)->at -= mn_now; 2217 EV_FREQUENT_CHECK;
2218
2219 ev_at (w) -= mn_now;
1668 2220
1669 ev_stop (EV_A_ (W)w); 2221 ev_stop (EV_A_ (W)w);
1670} 2222}
1671 2223
1672void noinline 2224void noinline
1673ev_timer_again (EV_P_ ev_timer *w) 2225ev_timer_again (EV_P_ ev_timer *w)
1674{ 2226{
2227 EV_FREQUENT_CHECK;
2228
1675 if (ev_is_active (w)) 2229 if (ev_is_active (w))
1676 { 2230 {
1677 if (w->repeat) 2231 if (w->repeat)
1678 { 2232 {
1679 ((WT)w)->at = mn_now + w->repeat; 2233 ev_at (w) = mn_now + w->repeat;
2234 ANHE_at_cache (timers [ev_active (w)]);
1680 adjustheap (timers, timercnt, ((W)w)->active - 1); 2235 adjustheap (timers, timercnt, ev_active (w));
1681 } 2236 }
1682 else 2237 else
1683 ev_timer_stop (EV_A_ w); 2238 ev_timer_stop (EV_A_ w);
1684 } 2239 }
1685 else if (w->repeat) 2240 else if (w->repeat)
1686 { 2241 {
1687 w->at = w->repeat; 2242 ev_at (w) = w->repeat;
1688 ev_timer_start (EV_A_ w); 2243 ev_timer_start (EV_A_ w);
1689 } 2244 }
2245
2246 EV_FREQUENT_CHECK;
1690} 2247}
1691 2248
1692#if EV_PERIODIC_ENABLE 2249#if EV_PERIODIC_ENABLE
1693void noinline 2250void noinline
1694ev_periodic_start (EV_P_ ev_periodic *w) 2251ev_periodic_start (EV_P_ ev_periodic *w)
1695{ 2252{
1696 if (expect_false (ev_is_active (w))) 2253 if (expect_false (ev_is_active (w)))
1697 return; 2254 return;
1698 2255
1699 if (w->reschedule_cb) 2256 if (w->reschedule_cb)
1700 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 2257 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1701 else if (w->interval) 2258 else if (w->interval)
1702 { 2259 {
1703 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2260 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1704 /* this formula differs from the one in periodic_reify because we do not always round up */ 2261 /* this formula differs from the one in periodic_reify because we do not always round up */
1705 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2262 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1706 } 2263 }
1707 else 2264 else
1708 ((WT)w)->at = w->offset; 2265 ev_at (w) = w->offset;
1709 2266
2267 EV_FREQUENT_CHECK;
2268
2269 ++periodiccnt;
1710 ev_start (EV_A_ (W)w, ++periodiccnt); 2270 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1711 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); 2271 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1712 periodics [periodiccnt - 1] = (WT)w; 2272 ANHE_w (periodics [ev_active (w)]) = (WT)w;
1713 upheap (periodics, periodiccnt - 1); 2273 ANHE_at_cache (periodics [ev_active (w)]);
2274 upheap (periodics, ev_active (w));
1714 2275
2276 EV_FREQUENT_CHECK;
2277
1715 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ 2278 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1716} 2279}
1717 2280
1718void noinline 2281void noinline
1719ev_periodic_stop (EV_P_ ev_periodic *w) 2282ev_periodic_stop (EV_P_ ev_periodic *w)
1720{ 2283{
1721 clear_pending (EV_A_ (W)w); 2284 clear_pending (EV_A_ (W)w);
1722 if (expect_false (!ev_is_active (w))) 2285 if (expect_false (!ev_is_active (w)))
1723 return; 2286 return;
1724 2287
1725 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); 2288 EV_FREQUENT_CHECK;
1726 2289
1727 { 2290 {
1728 int active = ((W)w)->active; 2291 int active = ev_active (w);
1729 2292
2293 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2294
2295 --periodiccnt;
2296
1730 if (expect_true (--active < --periodiccnt)) 2297 if (expect_true (active < periodiccnt + HEAP0))
1731 { 2298 {
1732 periodics [active] = periodics [periodiccnt]; 2299 periodics [active] = periodics [periodiccnt + HEAP0];
1733 adjustheap (periodics, periodiccnt, active); 2300 adjustheap (periodics, periodiccnt, active);
1734 } 2301 }
1735 } 2302 }
1736 2303
2304 EV_FREQUENT_CHECK;
2305
1737 ev_stop (EV_A_ (W)w); 2306 ev_stop (EV_A_ (W)w);
1738} 2307}
1739 2308
1740void noinline 2309void noinline
1741ev_periodic_again (EV_P_ ev_periodic *w) 2310ev_periodic_again (EV_P_ ev_periodic *w)
… …
1758#endif 2327#endif
1759 if (expect_false (ev_is_active (w))) 2328 if (expect_false (ev_is_active (w)))
1760 return; 2329 return;
1761 2330
1762 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2331 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2332
2333 evpipe_init (EV_A);
2334
2335 EV_FREQUENT_CHECK;
1763 2336
1764 { 2337 {
1765#ifndef _WIN32 2338#ifndef _WIN32
1766 sigset_t full, prev; 2339 sigset_t full, prev;
1767 sigfillset (&full); 2340 sigfillset (&full);
… …
1779 wlist_add (&signals [w->signum - 1].head, (WL)w); 2352 wlist_add (&signals [w->signum - 1].head, (WL)w);
1780 2353
1781 if (!((WL)w)->next) 2354 if (!((WL)w)->next)
1782 { 2355 {
1783#if _WIN32 2356#if _WIN32
1784 signal (w->signum, sighandler); 2357 signal (w->signum, ev_sighandler);
1785#else 2358#else
1786 struct sigaction sa; 2359 struct sigaction sa;
1787 sa.sa_handler = sighandler; 2360 sa.sa_handler = ev_sighandler;
1788 sigfillset (&sa.sa_mask); 2361 sigfillset (&sa.sa_mask);
1789 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2362 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1790 sigaction (w->signum, &sa, 0); 2363 sigaction (w->signum, &sa, 0);
1791#endif 2364#endif
1792 } 2365 }
2366
2367 EV_FREQUENT_CHECK;
1793} 2368}
1794 2369
1795void noinline 2370void noinline
1796ev_signal_stop (EV_P_ ev_signal *w) 2371ev_signal_stop (EV_P_ ev_signal *w)
1797{ 2372{
1798 clear_pending (EV_A_ (W)w); 2373 clear_pending (EV_A_ (W)w);
1799 if (expect_false (!ev_is_active (w))) 2374 if (expect_false (!ev_is_active (w)))
1800 return; 2375 return;
1801 2376
2377 EV_FREQUENT_CHECK;
2378
1802 wlist_del (&signals [w->signum - 1].head, (WL)w); 2379 wlist_del (&signals [w->signum - 1].head, (WL)w);
1803 ev_stop (EV_A_ (W)w); 2380 ev_stop (EV_A_ (W)w);
1804 2381
1805 if (!signals [w->signum - 1].head) 2382 if (!signals [w->signum - 1].head)
1806 signal (w->signum, SIG_DFL); 2383 signal (w->signum, SIG_DFL);
2384
2385 EV_FREQUENT_CHECK;
1807} 2386}
1808 2387
1809void 2388void
1810ev_child_start (EV_P_ ev_child *w) 2389ev_child_start (EV_P_ ev_child *w)
1811{ 2390{
… …
1813 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2392 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1814#endif 2393#endif
1815 if (expect_false (ev_is_active (w))) 2394 if (expect_false (ev_is_active (w)))
1816 return; 2395 return;
1817 2396
2397 EV_FREQUENT_CHECK;
2398
1818 ev_start (EV_A_ (W)w, 1); 2399 ev_start (EV_A_ (W)w, 1);
1819 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2400 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2401
2402 EV_FREQUENT_CHECK;
1820} 2403}
1821 2404
1822void 2405void
1823ev_child_stop (EV_P_ ev_child *w) 2406ev_child_stop (EV_P_ ev_child *w)
1824{ 2407{
1825 clear_pending (EV_A_ (W)w); 2408 clear_pending (EV_A_ (W)w);
1826 if (expect_false (!ev_is_active (w))) 2409 if (expect_false (!ev_is_active (w)))
1827 return; 2410 return;
1828 2411
2412 EV_FREQUENT_CHECK;
2413
1829 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2414 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1830 ev_stop (EV_A_ (W)w); 2415 ev_stop (EV_A_ (W)w);
2416
2417 EV_FREQUENT_CHECK;
1831} 2418}
1832 2419
1833#if EV_STAT_ENABLE 2420#if EV_STAT_ENABLE
1834 2421
1835# ifdef _WIN32 2422# ifdef _WIN32
… …
1853 if (w->wd < 0) 2440 if (w->wd < 0)
1854 { 2441 {
1855 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2442 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1856 2443
1857 /* monitor some parent directory for speedup hints */ 2444 /* monitor some parent directory for speedup hints */
2445 /* note that exceeding the hardcoded limit is not a correctness issue, */
2446 /* but an efficiency issue only */
1858 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2447 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1859 { 2448 {
1860 char path [4096]; 2449 char path [4096];
1861 strcpy (path, w->path); 2450 strcpy (path, w->path);
1862 2451
… …
1988 } 2577 }
1989 2578
1990 } 2579 }
1991} 2580}
1992 2581
2582#endif
2583
2584#ifdef _WIN32
2585# define EV_LSTAT(p,b) _stati64 (p, b)
2586#else
2587# define EV_LSTAT(p,b) lstat (p, b)
1993#endif 2588#endif
1994 2589
1995void 2590void
1996ev_stat_stat (EV_P_ ev_stat *w) 2591ev_stat_stat (EV_P_ ev_stat *w)
1997{ 2592{
… …
2061 else 2656 else
2062#endif 2657#endif
2063 ev_timer_start (EV_A_ &w->timer); 2658 ev_timer_start (EV_A_ &w->timer);
2064 2659
2065 ev_start (EV_A_ (W)w, 1); 2660 ev_start (EV_A_ (W)w, 1);
2661
2662 EV_FREQUENT_CHECK;
2066} 2663}
2067 2664
2068void 2665void
2069ev_stat_stop (EV_P_ ev_stat *w) 2666ev_stat_stop (EV_P_ ev_stat *w)
2070{ 2667{
2071 clear_pending (EV_A_ (W)w); 2668 clear_pending (EV_A_ (W)w);
2072 if (expect_false (!ev_is_active (w))) 2669 if (expect_false (!ev_is_active (w)))
2073 return; 2670 return;
2074 2671
2672 EV_FREQUENT_CHECK;
2673
2075#if EV_USE_INOTIFY 2674#if EV_USE_INOTIFY
2076 infy_del (EV_A_ w); 2675 infy_del (EV_A_ w);
2077#endif 2676#endif
2078 ev_timer_stop (EV_A_ &w->timer); 2677 ev_timer_stop (EV_A_ &w->timer);
2079 2678
2080 ev_stop (EV_A_ (W)w); 2679 ev_stop (EV_A_ (W)w);
2680
2681 EV_FREQUENT_CHECK;
2081} 2682}
2082#endif 2683#endif
2083 2684
2084#if EV_IDLE_ENABLE 2685#if EV_IDLE_ENABLE
2085void 2686void
… …
2087{ 2688{
2088 if (expect_false (ev_is_active (w))) 2689 if (expect_false (ev_is_active (w)))
2089 return; 2690 return;
2090 2691
2091 pri_adjust (EV_A_ (W)w); 2692 pri_adjust (EV_A_ (W)w);
2693
2694 EV_FREQUENT_CHECK;
2092 2695
2093 { 2696 {
2094 int active = ++idlecnt [ABSPRI (w)]; 2697 int active = ++idlecnt [ABSPRI (w)];
2095 2698
2096 ++idleall; 2699 ++idleall;
2097 ev_start (EV_A_ (W)w, active); 2700 ev_start (EV_A_ (W)w, active);
2098 2701
2099 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 2702 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2100 idles [ABSPRI (w)][active - 1] = w; 2703 idles [ABSPRI (w)][active - 1] = w;
2101 } 2704 }
2705
2706 EV_FREQUENT_CHECK;
2102} 2707}
2103 2708
2104void 2709void
2105ev_idle_stop (EV_P_ ev_idle *w) 2710ev_idle_stop (EV_P_ ev_idle *w)
2106{ 2711{
2107 clear_pending (EV_A_ (W)w); 2712 clear_pending (EV_A_ (W)w);
2108 if (expect_false (!ev_is_active (w))) 2713 if (expect_false (!ev_is_active (w)))
2109 return; 2714 return;
2110 2715
2716 EV_FREQUENT_CHECK;
2717
2111 { 2718 {
2112 int active = ((W)w)->active; 2719 int active = ev_active (w);
2113 2720
2114 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 2721 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2115 ((W)idles [ABSPRI (w)][active - 1])->active = active; 2722 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2116 2723
2117 ev_stop (EV_A_ (W)w); 2724 ev_stop (EV_A_ (W)w);
2118 --idleall; 2725 --idleall;
2119 } 2726 }
2727
2728 EV_FREQUENT_CHECK;
2120} 2729}
2121#endif 2730#endif
2122 2731
2123void 2732void
2124ev_prepare_start (EV_P_ ev_prepare *w) 2733ev_prepare_start (EV_P_ ev_prepare *w)
2125{ 2734{
2126 if (expect_false (ev_is_active (w))) 2735 if (expect_false (ev_is_active (w)))
2127 return; 2736 return;
2737
2738 EV_FREQUENT_CHECK;
2128 2739
2129 ev_start (EV_A_ (W)w, ++preparecnt); 2740 ev_start (EV_A_ (W)w, ++preparecnt);
2130 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 2741 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2131 prepares [preparecnt - 1] = w; 2742 prepares [preparecnt - 1] = w;
2743
2744 EV_FREQUENT_CHECK;
2132} 2745}
2133 2746
2134void 2747void
2135ev_prepare_stop (EV_P_ ev_prepare *w) 2748ev_prepare_stop (EV_P_ ev_prepare *w)
2136{ 2749{
2137 clear_pending (EV_A_ (W)w); 2750 clear_pending (EV_A_ (W)w);
2138 if (expect_false (!ev_is_active (w))) 2751 if (expect_false (!ev_is_active (w)))
2139 return; 2752 return;
2140 2753
2754 EV_FREQUENT_CHECK;
2755
2141 { 2756 {
2142 int active = ((W)w)->active; 2757 int active = ev_active (w);
2758
2143 prepares [active - 1] = prepares [--preparecnt]; 2759 prepares [active - 1] = prepares [--preparecnt];
2144 ((W)prepares [active - 1])->active = active; 2760 ev_active (prepares [active - 1]) = active;
2145 } 2761 }
2146 2762
2147 ev_stop (EV_A_ (W)w); 2763 ev_stop (EV_A_ (W)w);
2764
2765 EV_FREQUENT_CHECK;
2148} 2766}
2149 2767
2150void 2768void
2151ev_check_start (EV_P_ ev_check *w) 2769ev_check_start (EV_P_ ev_check *w)
2152{ 2770{
2153 if (expect_false (ev_is_active (w))) 2771 if (expect_false (ev_is_active (w)))
2154 return; 2772 return;
2773
2774 EV_FREQUENT_CHECK;
2155 2775
2156 ev_start (EV_A_ (W)w, ++checkcnt); 2776 ev_start (EV_A_ (W)w, ++checkcnt);
2157 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 2777 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2158 checks [checkcnt - 1] = w; 2778 checks [checkcnt - 1] = w;
2779
2780 EV_FREQUENT_CHECK;
2159} 2781}
2160 2782
2161void 2783void
2162ev_check_stop (EV_P_ ev_check *w) 2784ev_check_stop (EV_P_ ev_check *w)
2163{ 2785{
2164 clear_pending (EV_A_ (W)w); 2786 clear_pending (EV_A_ (W)w);
2165 if (expect_false (!ev_is_active (w))) 2787 if (expect_false (!ev_is_active (w)))
2166 return; 2788 return;
2167 2789
2790 EV_FREQUENT_CHECK;
2791
2168 { 2792 {
2169 int active = ((W)w)->active; 2793 int active = ev_active (w);
2794
2170 checks [active - 1] = checks [--checkcnt]; 2795 checks [active - 1] = checks [--checkcnt];
2171 ((W)checks [active - 1])->active = active; 2796 ev_active (checks [active - 1]) = active;
2172 } 2797 }
2173 2798
2174 ev_stop (EV_A_ (W)w); 2799 ev_stop (EV_A_ (W)w);
2800
2801 EV_FREQUENT_CHECK;
2175} 2802}
2176 2803
2177#if EV_EMBED_ENABLE 2804#if EV_EMBED_ENABLE
2178void noinline 2805void noinline
2179ev_embed_sweep (EV_P_ ev_embed *w) 2806ev_embed_sweep (EV_P_ ev_embed *w)
2180{ 2807{
2181 ev_loop (w->loop, EVLOOP_NONBLOCK); 2808 ev_loop (w->other, EVLOOP_NONBLOCK);
2182} 2809}
2183 2810
2184static void 2811static void
2185embed_cb (EV_P_ ev_io *io, int revents) 2812embed_io_cb (EV_P_ ev_io *io, int revents)
2186{ 2813{
2187 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 2814 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2188 2815
2189 if (ev_cb (w)) 2816 if (ev_cb (w))
2190 ev_feed_event (EV_A_ (W)w, EV_EMBED); 2817 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2191 else 2818 else
2192 ev_embed_sweep (loop, w); 2819 ev_loop (w->other, EVLOOP_NONBLOCK);
2193} 2820}
2821
2822static void
2823embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2824{
2825 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2826
2827 {
2828 struct ev_loop *loop = w->other;
2829
2830 while (fdchangecnt)
2831 {
2832 fd_reify (EV_A);
2833 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2834 }
2835 }
2836}
2837
2838#if 0
2839static void
2840embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2841{
2842 ev_idle_stop (EV_A_ idle);
2843}
2844#endif
2194 2845
2195void 2846void
2196ev_embed_start (EV_P_ ev_embed *w) 2847ev_embed_start (EV_P_ ev_embed *w)
2197{ 2848{
2198 if (expect_false (ev_is_active (w))) 2849 if (expect_false (ev_is_active (w)))
2199 return; 2850 return;
2200 2851
2201 { 2852 {
2202 struct ev_loop *loop = w->loop; 2853 struct ev_loop *loop = w->other;
2203 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 2854 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2204 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 2855 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2205 } 2856 }
2857
2858 EV_FREQUENT_CHECK;
2206 2859
2207 ev_set_priority (&w->io, ev_priority (w)); 2860 ev_set_priority (&w->io, ev_priority (w));
2208 ev_io_start (EV_A_ &w->io); 2861 ev_io_start (EV_A_ &w->io);
2209 2862
2863 ev_prepare_init (&w->prepare, embed_prepare_cb);
2864 ev_set_priority (&w->prepare, EV_MINPRI);
2865 ev_prepare_start (EV_A_ &w->prepare);
2866
2867 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2868
2210 ev_start (EV_A_ (W)w, 1); 2869 ev_start (EV_A_ (W)w, 1);
2870
2871 EV_FREQUENT_CHECK;
2211} 2872}
2212 2873
2213void 2874void
2214ev_embed_stop (EV_P_ ev_embed *w) 2875ev_embed_stop (EV_P_ ev_embed *w)
2215{ 2876{
2216 clear_pending (EV_A_ (W)w); 2877 clear_pending (EV_A_ (W)w);
2217 if (expect_false (!ev_is_active (w))) 2878 if (expect_false (!ev_is_active (w)))
2218 return; 2879 return;
2219 2880
2881 EV_FREQUENT_CHECK;
2882
2220 ev_io_stop (EV_A_ &w->io); 2883 ev_io_stop (EV_A_ &w->io);
2884 ev_prepare_stop (EV_A_ &w->prepare);
2221 2885
2222 ev_stop (EV_A_ (W)w); 2886 ev_stop (EV_A_ (W)w);
2887
2888 EV_FREQUENT_CHECK;
2223} 2889}
2224#endif 2890#endif
2225 2891
2226#if EV_FORK_ENABLE 2892#if EV_FORK_ENABLE
2227void 2893void
2228ev_fork_start (EV_P_ ev_fork *w) 2894ev_fork_start (EV_P_ ev_fork *w)
2229{ 2895{
2230 if (expect_false (ev_is_active (w))) 2896 if (expect_false (ev_is_active (w)))
2231 return; 2897 return;
2898
2899 EV_FREQUENT_CHECK;
2232 2900
2233 ev_start (EV_A_ (W)w, ++forkcnt); 2901 ev_start (EV_A_ (W)w, ++forkcnt);
2234 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 2902 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2235 forks [forkcnt - 1] = w; 2903 forks [forkcnt - 1] = w;
2904
2905 EV_FREQUENT_CHECK;
2236} 2906}
2237 2907
2238void 2908void
2239ev_fork_stop (EV_P_ ev_fork *w) 2909ev_fork_stop (EV_P_ ev_fork *w)
2240{ 2910{
2241 clear_pending (EV_A_ (W)w); 2911 clear_pending (EV_A_ (W)w);
2242 if (expect_false (!ev_is_active (w))) 2912 if (expect_false (!ev_is_active (w)))
2243 return; 2913 return;
2244 2914
2915 EV_FREQUENT_CHECK;
2916
2245 { 2917 {
2246 int active = ((W)w)->active; 2918 int active = ev_active (w);
2919
2247 forks [active - 1] = forks [--forkcnt]; 2920 forks [active - 1] = forks [--forkcnt];
2248 ((W)forks [active - 1])->active = active; 2921 ev_active (forks [active - 1]) = active;
2249 } 2922 }
2250 2923
2251 ev_stop (EV_A_ (W)w); 2924 ev_stop (EV_A_ (W)w);
2925
2926 EV_FREQUENT_CHECK;
2927}
2928#endif
2929
2930#if EV_ASYNC_ENABLE
2931void
2932ev_async_start (EV_P_ ev_async *w)
2933{
2934 if (expect_false (ev_is_active (w)))
2935 return;
2936
2937 evpipe_init (EV_A);
2938
2939 EV_FREQUENT_CHECK;
2940
2941 ev_start (EV_A_ (W)w, ++asynccnt);
2942 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2943 asyncs [asynccnt - 1] = w;
2944
2945 EV_FREQUENT_CHECK;
2946}
2947
2948void
2949ev_async_stop (EV_P_ ev_async *w)
2950{
2951 clear_pending (EV_A_ (W)w);
2952 if (expect_false (!ev_is_active (w)))
2953 return;
2954
2955 EV_FREQUENT_CHECK;
2956
2957 {
2958 int active = ev_active (w);
2959
2960 asyncs [active - 1] = asyncs [--asynccnt];
2961 ev_active (asyncs [active - 1]) = active;
2962 }
2963
2964 ev_stop (EV_A_ (W)w);
2965
2966 EV_FREQUENT_CHECK;
2967}
2968
2969void
2970ev_async_send (EV_P_ ev_async *w)
2971{
2972 w->sent = 1;
2973 evpipe_write (EV_A_ &gotasync);
2252} 2974}
2253#endif 2975#endif
2254 2976
2255/*****************************************************************************/ 2977/*****************************************************************************/
2256 2978
… …
2266once_cb (EV_P_ struct ev_once *once, int revents) 2988once_cb (EV_P_ struct ev_once *once, int revents)
2267{ 2989{
2268 void (*cb)(int revents, void *arg) = once->cb; 2990 void (*cb)(int revents, void *arg) = once->cb;
2269 void *arg = once->arg; 2991 void *arg = once->arg;
2270 2992
2271 ev_io_stop (EV_A_ &once->io); 2993 ev_io_stop (EV_A_ &once->io);
2272 ev_timer_stop (EV_A_ &once->to); 2994 ev_timer_stop (EV_A_ &once->to);
2273 ev_free (once); 2995 ev_free (once);
2274 2996
2275 cb (revents, arg); 2997 cb (revents, arg);
2276} 2998}
… …
2314 ev_timer_set (&once->to, timeout, 0.); 3036 ev_timer_set (&once->to, timeout, 0.);
2315 ev_timer_start (EV_A_ &once->to); 3037 ev_timer_start (EV_A_ &once->to);
2316 } 3038 }
2317} 3039}
2318 3040
3041#if EV_MULTIPLICITY
3042 #include "ev_wrap.h"
3043#endif
3044
2319#ifdef __cplusplus 3045#ifdef __cplusplus
2320} 3046}
2321#endif 3047#endif
2322 3048

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