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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 1.248 by root, Wed May 21 23:25:21 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
33	extern "C" {	41	extern "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	#ifndef EV_USE_4HEAP
		241	# define EV_USE_4HEAP !EV_MINIMAL
		242	#endif
		243
		244	#ifndef EV_HEAP_CACHE_AT
		245	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		246	#endif
		247
		248	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		249
197	#ifndef CLOCK_MONOTONIC	250	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	251	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	252	# define EV_USE_MONOTONIC 0
200	#endif	253	#endif
…		…
202	#ifndef CLOCK_REALTIME	255	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	256	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	257	# define EV_USE_REALTIME 0
205	#endif	258	#endif
206		259
		260	#if !EV_STAT_ENABLE
		261	# undef EV_USE_INOTIFY
		262	# define EV_USE_INOTIFY 0
		263	#endif
		264
		265	#if !EV_USE_NANOSLEEP
		266	# ifndef _WIN32
		267	# include <sys/select.h>
		268	# endif
		269	#endif
		270
		271	#if EV_USE_INOTIFY
		272	# include <sys/inotify.h>
		273	#endif
		274
207	#if EV_SELECT_IS_WINSOCKET	275	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	276	# include <winsock.h>
209	#endif	277	#endif
210		278
211	#if !EV_STAT_ENABLE	279	#if EV_USE_EVENTFD
212	# define EV_USE_INOTIFY 0	280	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		281	# include <stdint.h>
		282	# ifdef __cplusplus
		283	extern "C" {
213	#endif	284	# endif
214		285	int eventfd (unsigned int initval, int flags);
215	#if EV_USE_INOTIFY	286	# ifdef __cplusplus
216	# include <sys/inotify.h>	287	}
		288	# endif
217	#endif	289	#endif
218		290
219	/**/	291	/**/
		292
		293	/* undefined or zero: no verification done or available */
		294	/* 1 or higher: ev_loop_verify function available */
		295	/* 2 or higher: ev_loop_verify is called frequently */
		296	#define EV_VERIFY 1
		297
		298	#if EV_VERIFY > 1
		299	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		300	#else
		301	# define EV_FREQUENT_CHECK do { } while (0)
		302	#endif
220		303
221	/*	304	/*
222	* This is used to avoid floating point rounding problems.	305	* This is used to avoid floating point rounding problems.
223	* It is added to ev_rt_now when scheduling periodics	306	* It is added to ev_rt_now when scheduling periodics
224	* to ensure progress, time-wise, even when rounding	307	* to ensure progress, time-wise, even when rounding
…		…
230		313
231	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	314	#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) */	315	#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 */	316	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
234		317
235	#if __GNUC__ >= 3	318	#if __GNUC__ >= 4
236	# define expect(expr,value) __builtin_expect ((expr),(value))	319	# define expect(expr,value) __builtin_expect ((expr),(value))
237	# define noinline __attribute__ ((noinline))	320	# define noinline __attribute__ ((noinline))
238	#else	321	#else
239	# define expect(expr,value) (expr)	322	# define expect(expr,value) (expr)
240	# define noinline	323	# define noinline
241	# if __STDC_VERSION__ < 199901L	324	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
242	# define inline	325	# define inline
243	# endif	326	# endif
244	#endif	327	#endif
245		328
246	#define expect_false(expr) expect ((expr) != 0, 0)	329	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
261		344
262	typedef ev_watcher *W;	345	typedef ev_watcher *W;
263	typedef ev_watcher_list *WL;	346	typedef ev_watcher_list *WL;
264	typedef ev_watcher_time *WT;	347	typedef ev_watcher_time *WT;
265		348
		349	#define ev_active(w) ((W)(w))->active
		350	#define ev_at(w) ((WT)(w))->at
		351
		352	#if EV_USE_MONOTONIC
		353	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		354	/* giving it a reasonably high chance of working on typical architetcures */
266	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	355	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		356	#endif
267		357
268	#ifdef _WIN32	358	#ifdef _WIN32
269	# include "ev_win32.c"	359	# include "ev_win32.c"
270	#endif	360	#endif
271		361
…		…
292	perror (msg);	382	perror (msg);
293	abort ();	383	abort ();
294	}	384	}
295	}	385	}
296		386
		387	static void *
		388	ev_realloc_emul (void *ptr, long size)
		389	{
		390	/* some systems, notably openbsd and darwin, fail to properly
		391	* implement realloc (x, 0) (as required by both ansi c-98 and
		392	* the single unix specification, so work around them here.
		393	*/
		394
		395	if (size)
		396	return realloc (ptr, size);
		397
		398	free (ptr);
		399	return 0;
		400	}
		401
297	static void *(*alloc)(void *ptr, long size);	402	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
298		403
299	void	404	void
300	ev_set_allocator (void *(*cb)(void *ptr, long size))	405	ev_set_allocator (void *(*cb)(void *ptr, long size))
301	{	406	{
302	alloc = cb;	407	alloc = cb;
303	}	408	}
304		409
305	inline_speed void *	410	inline_speed void *
306	ev_realloc (void *ptr, long size)	411	ev_realloc (void *ptr, long size)
307	{	412	{
308	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	413	ptr = alloc (ptr, size);
309		414
310	if (!ptr && size)	415	if (!ptr && size)
311	{	416	{
312	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	417	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
313	abort ();	418	abort ();
…		…
336	W w;	441	W w;
337	int events;	442	int events;
338	} ANPENDING;	443	} ANPENDING;
339		444
340	#if EV_USE_INOTIFY	445	#if EV_USE_INOTIFY
		446	/* hash table entry per inotify-id */
341	typedef struct	447	typedef struct
342	{	448	{
343	WL head;	449	WL head;
344	} ANFS;	450	} ANFS;
		451	#endif
		452
		453	/* Heap Entry */
		454	#if EV_HEAP_CACHE_AT
		455	typedef struct {
		456	ev_tstamp at;
		457	WT w;
		458	} ANHE;
		459
		460	#define ANHE_w(he) (he).w /* access watcher, read-write */
		461	#define ANHE_at(he) (he).at /* access cached at, read-only */
		462	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		463	#else
		464	typedef WT ANHE;
		465
		466	#define ANHE_w(he) (he)
		467	#define ANHE_at(he) (he)->at
		468	#define ANHE_at_cache(he)
345	#endif	469	#endif
346		470
347	#if EV_MULTIPLICITY	471	#if EV_MULTIPLICITY
348		472
349	struct ev_loop	473	struct ev_loop
…		…
407	{	531	{
408	return ev_rt_now;	532	return ev_rt_now;
409	}	533	}
410	#endif	534	#endif
411		535
		536	void
		537	ev_sleep (ev_tstamp delay)
		538	{
		539	if (delay > 0.)
		540	{
		541	#if EV_USE_NANOSLEEP
		542	struct timespec ts;
		543
		544	ts.tv_sec = (time_t)delay;
		545	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		546
		547	nanosleep (&ts, 0);
		548	#elif defined(_WIN32)
		549	Sleep ((unsigned long)(delay * 1e3));
		550	#else
		551	struct timeval tv;
		552
		553	tv.tv_sec = (time_t)delay;
		554	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		555
		556	select (0, 0, 0, 0, &tv);
		557	#endif
		558	}
		559	}
		560
		561	/*****************************************************************************/
		562
		563	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
		564
412	int inline_size	565	int inline_size
413	array_nextsize (int elem, int cur, int cnt)	566	array_nextsize (int elem, int cur, int cnt)
414	{	567	{
415	int ncur = cur + 1;	568	int ncur = cur + 1;
416		569
417	do	570	do
418	ncur <<= 1;	571	ncur <<= 1;
419	while (cnt > ncur);	572	while (cnt > ncur);
420		573
421	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */	574	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
422	if (elem * ncur > 4096)	575	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
423	{	576	{
424	ncur *= elem;	577	ncur *= elem;
425	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;	578	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
426	ncur = ncur - sizeof (void *) * 4;	579	ncur = ncur - sizeof (void *) * 4;
427	ncur /= elem;	580	ncur /= elem;
428	}	581	}
429		582
430	return ncur;	583	return ncur;
…		…
542		695
543	#if EV_SELECT_IS_WINSOCKET	696	#if EV_SELECT_IS_WINSOCKET
544	if (events)	697	if (events)
545	{	698	{
546	unsigned long argp;	699	unsigned long argp;
		700	#ifdef EV_FD_TO_WIN32_HANDLE
		701	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		702	#else
547	anfd->handle = _get_osfhandle (fd);	703	anfd->handle = _get_osfhandle (fd);
		704	#endif
548	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	705	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
549	}	706	}
550	#endif	707	#endif
551		708
552	{	709	{
…		…
640	}	797	}
641	}	798	}
642		799
643	/*****************************************************************************/	800	/*****************************************************************************/
644		801
		802	/*
		803	* the heap functions want a real array index. array index 0 uis guaranteed to not
		804	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		805	* the branching factor of the d-tree.
		806	*/
		807
		808	/*
		809	* at the moment we allow libev the luxury of two heaps,
		810	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
		811	* which is more cache-efficient.
		812	* the difference is about 5% with 50000+ watchers.
		813	*/
		814	#if EV_USE_4HEAP
		815
		816	#define DHEAP 4
		817	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		818	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		819	#define UPHEAP_DONE(p,k) ((p) == (k))
		820
		821	/* away from the root */
645	void inline_speed	822	void inline_speed
646	upheap (WT *heap, int k)	823	downheap (ANHE *heap, int N, int k)
647	{	824	{
648	WT w = heap [k];	825	ANHE he = heap [k];
		826	ANHE *E = heap + N + HEAP0;
649		827
650	while (k)	828	for (;;)
651	{	829	{
652	int p = (k - 1) >> 1;	830	ev_tstamp minat;
		831	ANHE *minpos;
		832	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
653		833
654	if (heap [p]->at <= w->at)	834	/* find minimum child */
		835	if (expect_true (pos + DHEAP - 1 < E))
		836	{
		837	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		838	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		839	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		840	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		841	}
		842	else if (pos < E)
		843	{
		844	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		845	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		846	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		847	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		848	}
		849	else
655	break;	850	break;
656		851
		852	if (ANHE_at (he) <= minat)
		853	break;
		854
		855	heap [k] = *minpos;
		856	ev_active (ANHE_w (*minpos)) = k;
		857
		858	k = minpos - heap;
		859	}
		860
		861	heap [k] = he;
		862	ev_active (ANHE_w (he)) = k;
		863	}
		864
		865	#else /* 4HEAP */
		866
		867	#define HEAP0 1
		868	#define HPARENT(k) ((k) >> 1)
		869	#define UPHEAP_DONE(p,k) (!(p))
		870
		871	/* away from the root */
		872	void inline_speed
		873	downheap (ANHE *heap, int N, int k)
		874	{
		875	ANHE he = heap [k];
		876
		877	for (;;)
		878	{
		879	int c = k << 1;
		880
		881	if (c > N + HEAP0 - 1)
		882	break;
		883
		884	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
		885	? 1 : 0;
		886
		887	if (ANHE_at (he) <= ANHE_at (heap [c]))
		888	break;
		889
		890	heap [k] = heap [c];
		891	ev_active (ANHE_w (heap [k])) = k;
		892
		893	k = c;
		894	}
		895
		896	heap [k] = he;
		897	ev_active (ANHE_w (he)) = k;
		898	}
		899	#endif
		900
		901	/* towards the root */
		902	void inline_speed
		903	upheap (ANHE *heap, int k)
		904	{
		905	ANHE he = heap [k];
		906
		907	for (;;)
		908	{
		909	int p = HPARENT (k);
		910
		911	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		912	break;
		913
657	heap [k] = heap [p];	914	heap [k] = heap [p];
658	((W)heap [k])->active = k + 1;	915	ev_active (ANHE_w (heap [k])) = k;
659	k = p;	916	k = p;
660	}	917	}
661		918
662	heap [k] = w;	919	heap [k] = he;
663	((W)heap [k])->active = k + 1;	920	ev_active (ANHE_w (he)) = k;
664	}
665
666	void inline_speed
667	downheap (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	}	921	}
693		922
694	void inline_size	923	void inline_size
695	adjustheap (WT *heap, int N, int k)	924	adjustheap (ANHE *heap, int N, int k)
696	{	925	{
		926	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
697	upheap (heap, k);	927	upheap (heap, k);
		928	else
698	downheap (heap, N, k);	929	downheap (heap, N, k);
699	}	930	}
		931
		932	/* rebuild the heap: this function is used only once and executed rarely */
		933	void inline_size
		934	reheap (ANHE *heap, int N)
		935	{
		936	int i;
		937	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		938	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		939	for (i = 0; i < N; ++i)
		940	upheap (heap, i + HEAP0);
		941	}
		942
		943	#if EV_VERIFY
		944	static void
		945	checkheap (ANHE *heap, int N)
		946	{
		947	int i;
		948
		949	for (i = HEAP0; i < N + HEAP0; ++i)
		950	{
		951	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		952	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		953	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		954	}
		955	}
		956	#endif
700		957
701	/*****************************************************************************/	958	/*****************************************************************************/
702		959
703	typedef struct	960	typedef struct
704	{	961	{
705	WL head;	962	WL head;
706	sig_atomic_t volatile gotsig;	963	EV_ATOMIC_T gotsig;
707	} ANSIG;	964	} ANSIG;
708		965
709	static ANSIG *signals;	966	static ANSIG *signals;
710	static int signalmax;	967	static int signalmax;
711		968
712	static int sigpipe [2];	969	static EV_ATOMIC_T gotsig;
713	static sig_atomic_t volatile gotsig;
714	static ev_io sigev;
715		970
716	void inline_size	971	void inline_size
717	signals_init (ANSIG *base, int count)	972	signals_init (ANSIG *base, int count)
718	{	973	{
719	while (count--)	974	while (count--)
…		…
723		978
724	++base;	979	++base;
725	}	980	}
726	}	981	}
727		982
728	static void	983	/*****************************************************************************/
729	sighandler (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
746	void noinline
747	ev_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
766	static void
767	sigcb (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		984
779	void inline_speed	985	void inline_speed
780	fd_intern (int fd)	986	fd_intern (int fd)
781	{	987	{
782	#ifdef _WIN32	988	#ifdef _WIN32
…		…
787	fcntl (fd, F_SETFL, O_NONBLOCK);	993	fcntl (fd, F_SETFL, O_NONBLOCK);
788	#endif	994	#endif
789	}	995	}
790		996
791	static void noinline	997	static void noinline
792	siginit (EV_P)	998	evpipe_init (EV_P)
793	{	999	{
		1000	if (!ev_is_active (&pipeev))
		1001	{
		1002	#if EV_USE_EVENTFD
		1003	if ((evfd = eventfd (0, 0)) >= 0)
		1004	{
		1005	evpipe [0] = -1;
		1006	fd_intern (evfd);
		1007	ev_io_set (&pipeev, evfd, EV_READ);
		1008	}
		1009	else
		1010	#endif
		1011	{
		1012	while (pipe (evpipe))
		1013	syserr ("(libev) error creating signal/async pipe");
		1014
794	fd_intern (sigpipe [0]);	1015	fd_intern (evpipe [0]);
795	fd_intern (sigpipe [1]);	1016	fd_intern (evpipe [1]);
		1017	ev_io_set (&pipeev, evpipe [0], EV_READ);
		1018	}
796		1019
797	ev_io_set (&sigev, sigpipe [0], EV_READ);
798	ev_io_start (EV_A_ &sigev);	1020	ev_io_start (EV_A_ &pipeev);
799	ev_unref (EV_A); /* child watcher should not keep loop alive */	1021	ev_unref (EV_A); /* watcher should not keep loop alive */
		1022	}
		1023	}
		1024
		1025	void inline_size
		1026	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1027	{
		1028	if (!*flag)
		1029	{
		1030	int old_errno = errno; /* save errno because write might clobber it */
		1031
		1032	*flag = 1;
		1033
		1034	#if EV_USE_EVENTFD
		1035	if (evfd >= 0)
		1036	{
		1037	uint64_t counter = 1;
		1038	write (evfd, &counter, sizeof (uint64_t));
		1039	}
		1040	else
		1041	#endif
		1042	write (evpipe [1], &old_errno, 1);
		1043
		1044	errno = old_errno;
		1045	}
		1046	}
		1047
		1048	static void
		1049	pipecb (EV_P_ ev_io *iow, int revents)
		1050	{
		1051	#if EV_USE_EVENTFD
		1052	if (evfd >= 0)
		1053	{
		1054	uint64_t counter;
		1055	read (evfd, &counter, sizeof (uint64_t));
		1056	}
		1057	else
		1058	#endif
		1059	{
		1060	char dummy;
		1061	read (evpipe [0], &dummy, 1);
		1062	}
		1063
		1064	if (gotsig && ev_is_default_loop (EV_A))
		1065	{
		1066	int signum;
		1067	gotsig = 0;
		1068
		1069	for (signum = signalmax; signum--; )
		1070	if (signals [signum].gotsig)
		1071	ev_feed_signal_event (EV_A_ signum + 1);
		1072	}
		1073
		1074	#if EV_ASYNC_ENABLE
		1075	if (gotasync)
		1076	{
		1077	int i;
		1078	gotasync = 0;
		1079
		1080	for (i = asynccnt; i--; )
		1081	if (asyncs [i]->sent)
		1082	{
		1083	asyncs [i]->sent = 0;
		1084	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		1085	}
		1086	}
		1087	#endif
800	}	1088	}
801		1089
802	/*****************************************************************************/	1090	/*****************************************************************************/
803		1091
		1092	static void
		1093	ev_sighandler (int signum)
		1094	{
		1095	#if EV_MULTIPLICITY
		1096	struct ev_loop *loop = &default_loop_struct;
		1097	#endif
		1098
		1099	#if _WIN32
		1100	signal (signum, ev_sighandler);
		1101	#endif
		1102
		1103	signals [signum - 1].gotsig = 1;
		1104	evpipe_write (EV_A_ &gotsig);
		1105	}
		1106
		1107	void noinline
		1108	ev_feed_signal_event (EV_P_ int signum)
		1109	{
		1110	WL w;
		1111
		1112	#if EV_MULTIPLICITY
		1113	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		1114	#endif
		1115
		1116	--signum;
		1117
		1118	if (signum < 0 || signum >= signalmax)
		1119	return;
		1120
		1121	signals [signum].gotsig = 0;
		1122
		1123	for (w = signals [signum].head; w; w = w->next)
		1124	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		1125	}
		1126
		1127	/*****************************************************************************/
		1128
804	static WL childs [EV_PID_HASHSIZE];	1129	static WL childs [EV_PID_HASHSIZE];
805		1130
806	#ifndef _WIN32	1131	#ifndef _WIN32
807		1132
808	static ev_signal childev;	1133	static ev_signal childev;
809		1134
		1135	#ifndef WIFCONTINUED
		1136	# define WIFCONTINUED(status) 0
		1137	#endif
		1138
810	void inline_speed	1139	void inline_speed
811	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1140	child_reap (EV_P_ int chain, int pid, int status)
812	{	1141	{
813	ev_child *w;	1142	ev_child *w;
		1143	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
814		1144
815	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1145	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1146	{
816	if (w->pid == pid || !w->pid)	1147	if ((w->pid == pid || !w->pid)
		1148	&& (!traced || (w->flags & 1)))
817	{	1149	{
818	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	1150	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;	1151	w->rpid = pid;
820	w->rstatus = status;	1152	w->rstatus = status;
821	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1153	ev_feed_event (EV_A_ (W)w, EV_CHILD);
822	}	1154	}
		1155	}
823	}	1156	}
824		1157
825	#ifndef WCONTINUED	1158	#ifndef WCONTINUED
826	# define WCONTINUED 0	1159	# define WCONTINUED 0
827	#endif	1160	#endif
…		…
836	if (!WCONTINUED	1169	if (!WCONTINUED
837	|| errno != EINVAL	1170	|| errno != EINVAL
838	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1171	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
839	return;	1172	return;
840		1173
841	/* make sure we are called again until all childs have been reaped */	1174	/* 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 */	1175	/* 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);	1176	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
844		1177
845	child_reap (EV_A_ sw, pid, pid, status);	1178	child_reap (EV_A_ pid, pid, status);
846	if (EV_PID_HASHSIZE > 1)	1179	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 */	1180	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
848	}	1181	}
849		1182
850	#endif	1183	#endif
851		1184
852	/*****************************************************************************/	1185	/*****************************************************************************/
…		…
924	}	1257	}
925		1258
926	unsigned int	1259	unsigned int
927	ev_embeddable_backends (void)	1260	ev_embeddable_backends (void)
928	{	1261	{
929	return EVBACKEND_EPOLL	1262	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
930	| EVBACKEND_KQUEUE	1263
931	| EVBACKEND_PORT;	1264	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1265	/* please fix it and tell me how to detect the fix */
		1266	flags &= ~EVBACKEND_EPOLL;
		1267
		1268	return flags;
932	}	1269	}
933		1270
934	unsigned int	1271	unsigned int
935	ev_backend (EV_P)	1272	ev_backend (EV_P)
936	{	1273	{
…		…
939		1276
940	unsigned int	1277	unsigned int
941	ev_loop_count (EV_P)	1278	ev_loop_count (EV_P)
942	{	1279	{
943	return loop_count;	1280	return loop_count;
		1281	}
		1282
		1283	void
		1284	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1285	{
		1286	io_blocktime = interval;
		1287	}
		1288
		1289	void
		1290	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1291	{
		1292	timeout_blocktime = interval;
944	}	1293	}
945		1294
946	static void noinline	1295	static void noinline
947	loop_init (EV_P_ unsigned int flags)	1296	loop_init (EV_P_ unsigned int flags)
948	{	1297	{
…		…
954	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1303	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
955	have_monotonic = 1;	1304	have_monotonic = 1;
956	}	1305	}
957	#endif	1306	#endif
958		1307
959	ev_rt_now = ev_time ();	1308	ev_rt_now = ev_time ();
960	mn_now = get_clock ();	1309	mn_now = get_clock ();
961	now_floor = mn_now;	1310	now_floor = mn_now;
962	rtmn_diff = ev_rt_now - mn_now;	1311	rtmn_diff = ev_rt_now - mn_now;
		1312
		1313	io_blocktime = 0.;
		1314	timeout_blocktime = 0.;
		1315	backend = 0;
		1316	backend_fd = -1;
		1317	gotasync = 0;
		1318	#if EV_USE_INOTIFY
		1319	fs_fd = -2;
		1320	#endif
963		1321
964	/* pid check not overridable via env */	1322	/* pid check not overridable via env */
965	#ifndef _WIN32	1323	#ifndef _WIN32
966	if (flags & EVFLAG_FORKCHECK)	1324	if (flags & EVFLAG_FORKCHECK)
967	curpid = getpid ();	1325	curpid = getpid ();
…		…
970	if (!(flags & EVFLAG_NOENV)	1328	if (!(flags & EVFLAG_NOENV)
971	&& !enable_secure ()	1329	&& !enable_secure ()
972	&& getenv ("LIBEV_FLAGS"))	1330	&& getenv ("LIBEV_FLAGS"))
973	flags = atoi (getenv ("LIBEV_FLAGS"));	1331	flags = atoi (getenv ("LIBEV_FLAGS"));
974		1332
975	if (!(flags & 0x0000ffffUL))	1333	if (!(flags & 0x0000ffffU))
976	flags |= ev_recommended_backends ();	1334	flags |= ev_recommended_backends ();
977
978	backend = 0;
979	backend_fd = -1;
980	#if EV_USE_INOTIFY
981	fs_fd = -2;
982	#endif
983		1335
984	#if EV_USE_PORT	1336	#if EV_USE_PORT
985	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1337	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
986	#endif	1338	#endif
987	#if EV_USE_KQUEUE	1339	#if EV_USE_KQUEUE
…		…
995	#endif	1347	#endif
996	#if EV_USE_SELECT	1348	#if EV_USE_SELECT
997	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1349	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
998	#endif	1350	#endif
999		1351
1000	ev_init (&sigev, sigcb);	1352	ev_init (&pipeev, pipecb);
1001	ev_set_priority (&sigev, EV_MAXPRI);	1353	ev_set_priority (&pipeev, EV_MAXPRI);
1002	}	1354	}
1003	}	1355	}
1004		1356
1005	static void noinline	1357	static void noinline
1006	loop_destroy (EV_P)	1358	loop_destroy (EV_P)
1007	{	1359	{
1008	int i;	1360	int i;
		1361
		1362	if (ev_is_active (&pipeev))
		1363	{
		1364	ev_ref (EV_A); /* signal watcher */
		1365	ev_io_stop (EV_A_ &pipeev);
		1366
		1367	#if EV_USE_EVENTFD
		1368	if (evfd >= 0)
		1369	close (evfd);
		1370	#endif
		1371
		1372	if (evpipe [0] >= 0)
		1373	{
		1374	close (evpipe [0]);
		1375	close (evpipe [1]);
		1376	}
		1377	}
1009		1378
1010	#if EV_USE_INOTIFY	1379	#if EV_USE_INOTIFY
1011	if (fs_fd >= 0)	1380	if (fs_fd >= 0)
1012	close (fs_fd);	1381	close (fs_fd);
1013	#endif	1382	#endif
…		…
1036	array_free (pending, [i]);	1405	array_free (pending, [i]);
1037	#if EV_IDLE_ENABLE	1406	#if EV_IDLE_ENABLE
1038	array_free (idle, [i]);	1407	array_free (idle, [i]);
1039	#endif	1408	#endif
1040	}	1409	}
		1410
		1411	ev_free (anfds); anfdmax = 0;
1041		1412
1042	/* have to use the microsoft-never-gets-it-right macro */	1413	/* have to use the microsoft-never-gets-it-right macro */
1043	array_free (fdchange, EMPTY);	1414	array_free (fdchange, EMPTY);
1044	array_free (timer, EMPTY);	1415	array_free (timer, EMPTY);
1045	#if EV_PERIODIC_ENABLE	1416	#if EV_PERIODIC_ENABLE
1046	array_free (periodic, EMPTY);	1417	array_free (periodic, EMPTY);
1047	#endif	1418	#endif
		1419	#if EV_FORK_ENABLE
		1420	array_free (fork, EMPTY);
		1421	#endif
1048	array_free (prepare, EMPTY);	1422	array_free (prepare, EMPTY);
1049	array_free (check, EMPTY);	1423	array_free (check, EMPTY);
		1424	#if EV_ASYNC_ENABLE
		1425	array_free (async, EMPTY);
		1426	#endif
1050		1427
1051	backend = 0;	1428	backend = 0;
1052	}	1429	}
1053		1430
		1431	#if EV_USE_INOTIFY
1054	void inline_size infy_fork (EV_P);	1432	void inline_size infy_fork (EV_P);
		1433	#endif
1055		1434
1056	void inline_size	1435	void inline_size
1057	loop_fork (EV_P)	1436	loop_fork (EV_P)
1058	{	1437	{
1059	#if EV_USE_PORT	1438	#if EV_USE_PORT
…		…
1067	#endif	1446	#endif
1068	#if EV_USE_INOTIFY	1447	#if EV_USE_INOTIFY
1069	infy_fork (EV_A);	1448	infy_fork (EV_A);
1070	#endif	1449	#endif
1071		1450
1072	if (ev_is_active (&sigev))	1451	if (ev_is_active (&pipeev))
1073	{	1452	{
1074	/* default loop */	1453	/* this "locks" the handlers against writing to the pipe */
		1454	/* while we modify the fd vars */
		1455	gotsig = 1;
		1456	#if EV_ASYNC_ENABLE
		1457	gotasync = 1;
		1458	#endif
1075		1459
1076	ev_ref (EV_A);	1460	ev_ref (EV_A);
1077	ev_io_stop (EV_A_ &sigev);	1461	ev_io_stop (EV_A_ &pipeev);
		1462
		1463	#if EV_USE_EVENTFD
		1464	if (evfd >= 0)
		1465	close (evfd);
		1466	#endif
		1467
		1468	if (evpipe [0] >= 0)
		1469	{
1078	close (sigpipe [0]);	1470	close (evpipe [0]);
1079	close (sigpipe [1]);	1471	close (evpipe [1]);
		1472	}
1080		1473
1081	while (pipe (sigpipe))
1082	syserr ("(libev) error creating pipe");
1083
1084	siginit (EV_A);	1474	evpipe_init (EV_A);
		1475	/* now iterate over everything, in case we missed something */
		1476	pipecb (EV_A_ &pipeev, EV_READ);
1085	}	1477	}
1086		1478
1087	postfork = 0;	1479	postfork = 0;
1088	}	1480	}
1089		1481
…		…
1111	}	1503	}
1112		1504
1113	void	1505	void
1114	ev_loop_fork (EV_P)	1506	ev_loop_fork (EV_P)
1115	{	1507	{
1116	postfork = 1;	1508	postfork = 1; /* must be in line with ev_default_fork */
1117	}	1509	}
		1510
		1511	#if EV_VERIFY
		1512	static void
		1513	array_check (W **ws, int cnt)
		1514	{
		1515	while (cnt--)
		1516	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1517	}
		1518
		1519	static void
		1520	ev_loop_verify (EV_P)
		1521	{
		1522	int i;
		1523
		1524	checkheap (timers, timercnt);
		1525	#if EV_PERIODIC_ENABLE
		1526	checkheap (periodics, periodiccnt);
		1527	#endif
		1528
		1529	#if EV_IDLE_ENABLE
		1530	for (i = NUMPRI; i--; )
		1531	array_check ((W **)idles [i], idlecnt [i]);
		1532	#endif
		1533	#if EV_FORK_ENABLE
		1534	array_check ((W **)forks, forkcnt);
		1535	#endif
		1536	array_check ((W **)prepares, preparecnt);
		1537	array_check ((W **)checks, checkcnt);
		1538	#if EV_ASYNC_ENABLE
		1539	array_check ((W **)asyncs, asynccnt);
		1540	#endif
		1541	}
		1542	#endif
1118		1543
1119	#endif	1544	#endif
1120		1545
1121	#if EV_MULTIPLICITY	1546	#if EV_MULTIPLICITY
1122	struct ev_loop *	1547	struct ev_loop *
…		…
1124	#else	1549	#else
1125	int	1550	int
1126	ev_default_loop (unsigned int flags)	1551	ev_default_loop (unsigned int flags)
1127	#endif	1552	#endif
1128	{	1553	{
1129	if (sigpipe [0] == sigpipe [1])
1130	if (pipe (sigpipe))
1131	return 0;
1132
1133	if (!ev_default_loop_ptr)	1554	if (!ev_default_loop_ptr)
1134	{	1555	{
1135	#if EV_MULTIPLICITY	1556	#if EV_MULTIPLICITY
1136	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1557	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1137	#else	1558	#else
…		…
1140		1561
1141	loop_init (EV_A_ flags);	1562	loop_init (EV_A_ flags);
1142		1563
1143	if (ev_backend (EV_A))	1564	if (ev_backend (EV_A))
1144	{	1565	{
1145	siginit (EV_A);
1146
1147	#ifndef _WIN32	1566	#ifndef _WIN32
1148	ev_signal_init (&childev, childcb, SIGCHLD);	1567	ev_signal_init (&childev, childcb, SIGCHLD);
1149	ev_set_priority (&childev, EV_MAXPRI);	1568	ev_set_priority (&childev, EV_MAXPRI);
1150	ev_signal_start (EV_A_ &childev);	1569	ev_signal_start (EV_A_ &childev);
1151	ev_unref (EV_A); /* child watcher should not keep loop alive */	1570	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1168	#ifndef _WIN32	1587	#ifndef _WIN32
1169	ev_ref (EV_A); /* child watcher */	1588	ev_ref (EV_A); /* child watcher */
1170	ev_signal_stop (EV_A_ &childev);	1589	ev_signal_stop (EV_A_ &childev);
1171	#endif	1590	#endif
1172		1591
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);	1592	loop_destroy (EV_A);
1180	}	1593	}
1181		1594
1182	void	1595	void
1183	ev_default_fork (void)	1596	ev_default_fork (void)
…		…
1185	#if EV_MULTIPLICITY	1598	#if EV_MULTIPLICITY
1186	struct ev_loop *loop = ev_default_loop_ptr;	1599	struct ev_loop *loop = ev_default_loop_ptr;
1187	#endif	1600	#endif
1188		1601
1189	if (backend)	1602	if (backend)
1190	postfork = 1;	1603	postfork = 1; /* must be in line with ev_loop_fork */
1191	}	1604	}
1192		1605
1193	/*****************************************************************************/	1606	/*****************************************************************************/
1194		1607
1195	void	1608	void
…		…
1200		1613
1201	void inline_speed	1614	void inline_speed
1202	call_pending (EV_P)	1615	call_pending (EV_P)
1203	{	1616	{
1204	int pri;	1617	int pri;
		1618
		1619	EV_FREQUENT_CHECK;
1205		1620
1206	for (pri = NUMPRI; pri--; )	1621	for (pri = NUMPRI; pri--; )
1207	while (pendingcnt [pri])	1622	while (pendingcnt [pri])
1208	{	1623	{
1209	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1624	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
…		…
1214		1629
1215	p->w->pending = 0;	1630	p->w->pending = 0;
1216	EV_CB_INVOKE (p->w, p->events);	1631	EV_CB_INVOKE (p->w, p->events);
1217	}	1632	}
1218	}	1633	}
1219	}
1220		1634
1221	void inline_size	1635	EV_FREQUENT_CHECK;
1222	timers_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	}	1636	}
1247
1248	#if EV_PERIODIC_ENABLE
1249	void inline_size
1250	periodics_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
1279	static void noinline
1280	periodics_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		1637
1301	#if EV_IDLE_ENABLE	1638	#if EV_IDLE_ENABLE
1302	void inline_size	1639	void inline_size
1303	idle_reify (EV_P)	1640	idle_reify (EV_P)
1304	{	1641	{
…		…
1316	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);	1653	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1317	break;	1654	break;
1318	}	1655	}
1319	}	1656	}
1320	}	1657	}
		1658	}
		1659	#endif
		1660
		1661	void inline_size
		1662	timers_reify (EV_P)
		1663	{
		1664	EV_FREQUENT_CHECK;
		1665
		1666	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		1667	{
		1668	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1669
		1670	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
		1671
		1672	/* first reschedule or stop timer */
		1673	if (w->repeat)
		1674	{
		1675	ev_at (w) += w->repeat;
		1676	if (ev_at (w) < mn_now)
		1677	ev_at (w) = mn_now;
		1678
		1679	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1680
		1681	ANHE_at_cache (timers [HEAP0]);
		1682	downheap (timers, timercnt, HEAP0);
		1683	}
		1684	else
		1685	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1686
		1687	EV_FREQUENT_CHECK;
		1688	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
		1689	}
		1690	}
		1691
		1692	#if EV_PERIODIC_ENABLE
		1693	void inline_size
		1694	periodics_reify (EV_P)
		1695	{
		1696	EV_FREQUENT_CHECK;
		1697	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		1698	{
		1699	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1700
		1701	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
		1702
		1703	/* first reschedule or stop timer */
		1704	if (w->reschedule_cb)
		1705	{
		1706	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1707
		1708	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1709
		1710	ANHE_at_cache (periodics [HEAP0]);
		1711	downheap (periodics, periodiccnt, HEAP0);
		1712	EV_FREQUENT_CHECK;
		1713	}
		1714	else if (w->interval)
		1715	{
		1716	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1717	/* if next trigger time is not sufficiently in the future, put it there */
		1718	/* this might happen because of floating point inexactness */
		1719	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1720	{
		1721	ev_at (w) += w->interval;
		1722
		1723	/* if interval is unreasonably low we might still have a time in the past */
		1724	/* so correct this. this will make the periodic very inexact, but the user */
		1725	/* has effectively asked to get triggered more often than possible */
		1726	if (ev_at (w) < ev_rt_now)
		1727	ev_at (w) = ev_rt_now;
		1728	}
		1729
		1730	ANHE_at_cache (periodics [HEAP0]);
		1731	downheap (periodics, periodiccnt, HEAP0);
		1732	}
		1733	else
		1734	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1735
		1736	EV_FREQUENT_CHECK;
		1737	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
		1738	}
		1739	}
		1740
		1741	static void noinline
		1742	periodics_reschedule (EV_P)
		1743	{
		1744	int i;
		1745
		1746	/* adjust periodics after time jump */
		1747	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		1748	{
		1749	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
		1750
		1751	if (w->reschedule_cb)
		1752	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1753	else if (w->interval)
		1754	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1755
		1756	ANHE_at_cache (periodics [i]);
		1757	}
		1758
		1759	reheap (periodics, periodiccnt);
1321	}	1760	}
1322	#endif	1761	#endif
1323		1762
1324	void inline_speed	1763	void inline_speed
1325	time_update (EV_P_ ev_tstamp max_block)	1764	time_update (EV_P_ ev_tstamp max_block)
…		…
1354	*/	1793	*/
1355	for (i = 4; --i; )	1794	for (i = 4; --i; )
1356	{	1795	{
1357	rtmn_diff = ev_rt_now - mn_now;	1796	rtmn_diff = ev_rt_now - mn_now;
1358		1797
1359	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1798	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1360	return; /* all is well */	1799	return; /* all is well */
1361		1800
1362	ev_rt_now = ev_time ();	1801	ev_rt_now = ev_time ();
1363	mn_now = get_clock ();	1802	mn_now = get_clock ();
1364	now_floor = mn_now;	1803	now_floor = mn_now;
…		…
1380	#if EV_PERIODIC_ENABLE	1819	#if EV_PERIODIC_ENABLE
1381	periodics_reschedule (EV_A);	1820	periodics_reschedule (EV_A);
1382	#endif	1821	#endif
1383	/* adjust timers. this is easy, as the offset is the same for all of them */	1822	/* adjust timers. this is easy, as the offset is the same for all of them */
1384	for (i = 0; i < timercnt; ++i)	1823	for (i = 0; i < timercnt; ++i)
		1824	{
		1825	ANHE *he = timers + i + HEAP0;
1385	((WT)timers [i])->at += ev_rt_now - mn_now;	1826	ANHE_w (*he)->at += ev_rt_now - mn_now;
		1827	ANHE_at_cache (*he);
		1828	}
1386	}	1829	}
1387		1830
1388	mn_now = ev_rt_now;	1831	mn_now = ev_rt_now;
1389	}	1832	}
1390	}	1833	}
…		…
1404	static int loop_done;	1847	static int loop_done;
1405		1848
1406	void	1849	void
1407	ev_loop (EV_P_ int flags)	1850	ev_loop (EV_P_ int flags)
1408	{	1851	{
1409	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1852	loop_done = EVUNLOOP_CANCEL;
1410	? EVUNLOOP_ONE
1411	: EVUNLOOP_CANCEL;
1412		1853
1413	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1854	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1414		1855
1415	do	1856	do
1416	{	1857	{
…		…
1450	/* update fd-related kernel structures */	1891	/* update fd-related kernel structures */
1451	fd_reify (EV_A);	1892	fd_reify (EV_A);
1452		1893
1453	/* calculate blocking time */	1894	/* calculate blocking time */
1454	{	1895	{
1455	ev_tstamp block;	1896	ev_tstamp waittime = 0.;
		1897	ev_tstamp sleeptime = 0.;
1456		1898
1457	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1899	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1458	block = 0.; /* do not block at all */
1459	else
1460	{	1900	{
1461	/* update time to cancel out callback processing overhead */	1901	/* update time to cancel out callback processing overhead */
1462	time_update (EV_A_ 1e100);	1902	time_update (EV_A_ 1e100);
1463		1903
1464	block = MAX_BLOCKTIME;	1904	waittime = MAX_BLOCKTIME;
1465		1905
1466	if (timercnt)	1906	if (timercnt)
1467	{	1907	{
1468	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1908	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1469	if (block > to) block = to;	1909	if (waittime > to) waittime = to;
1470	}	1910	}
1471		1911
1472	#if EV_PERIODIC_ENABLE	1912	#if EV_PERIODIC_ENABLE
1473	if (periodiccnt)	1913	if (periodiccnt)
1474	{	1914	{
1475	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1915	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1476	if (block > to) block = to;	1916	if (waittime > to) waittime = to;
1477	}	1917	}
1478	#endif	1918	#endif
1479		1919
1480	if (expect_false (block < 0.)) block = 0.;	1920	if (expect_false (waittime < timeout_blocktime))
		1921	waittime = timeout_blocktime;
		1922
		1923	sleeptime = waittime - backend_fudge;
		1924
		1925	if (expect_true (sleeptime > io_blocktime))
		1926	sleeptime = io_blocktime;
		1927
		1928	if (sleeptime)
		1929	{
		1930	ev_sleep (sleeptime);
		1931	waittime -= sleeptime;
		1932	}
1481	}	1933	}
1482		1934
1483	++loop_count;	1935	++loop_count;
1484	backend_poll (EV_A_ block);	1936	backend_poll (EV_A_ waittime);
1485		1937
1486	/* update ev_rt_now, do magic */	1938	/* update ev_rt_now, do magic */
1487	time_update (EV_A_ block);	1939	time_update (EV_A_ waittime + sleeptime);
1488	}	1940	}
1489		1941
1490	/* queue pending timers and reschedule them */	1942	/* queue pending timers and reschedule them */
1491	timers_reify (EV_A); /* relative timers called last */	1943	timers_reify (EV_A); /* relative timers called last */
1492	#if EV_PERIODIC_ENABLE	1944	#if EV_PERIODIC_ENABLE
…		…
1501	/* queue check watchers, to be executed first */	1953	/* queue check watchers, to be executed first */
1502	if (expect_false (checkcnt))	1954	if (expect_false (checkcnt))
1503	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1955	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1504		1956
1505	call_pending (EV_A);	1957	call_pending (EV_A);
1506
1507	}	1958	}
1508	while (expect_true (activecnt && !loop_done));	1959	while (expect_true (
		1960	activecnt
		1961	&& !loop_done
		1962	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1963	));
1509		1964
1510	if (loop_done == EVUNLOOP_ONE)	1965	if (loop_done == EVUNLOOP_ONE)
1511	loop_done = EVUNLOOP_CANCEL;	1966	loop_done = EVUNLOOP_CANCEL;
1512	}	1967	}
1513		1968
…		…
1602	if (expect_false (ev_is_active (w)))	2057	if (expect_false (ev_is_active (w)))
1603	return;	2058	return;
1604		2059
1605	assert (("ev_io_start called with negative fd", fd >= 0));	2060	assert (("ev_io_start called with negative fd", fd >= 0));
1606		2061
		2062	EV_FREQUENT_CHECK;
		2063
1607	ev_start (EV_A_ (W)w, 1);	2064	ev_start (EV_A_ (W)w, 1);
1608	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2065	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1609	wlist_add (&anfds[fd].head, (WL)w);	2066	wlist_add (&anfds[fd].head, (WL)w);
1610		2067
1611	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2068	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1612	w->events &= ~EV_IOFDSET;	2069	w->events &= ~EV_IOFDSET;
		2070
		2071	EV_FREQUENT_CHECK;
1613	}	2072	}
1614		2073
1615	void noinline	2074	void noinline
1616	ev_io_stop (EV_P_ ev_io *w)	2075	ev_io_stop (EV_P_ ev_io *w)
1617	{	2076	{
1618	clear_pending (EV_A_ (W)w);	2077	clear_pending (EV_A_ (W)w);
1619	if (expect_false (!ev_is_active (w)))	2078	if (expect_false (!ev_is_active (w)))
1620	return;	2079	return;
1621		2080
1622	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2081	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2082
		2083	EV_FREQUENT_CHECK;
1623		2084
1624	wlist_del (&anfds[w->fd].head, (WL)w);	2085	wlist_del (&anfds[w->fd].head, (WL)w);
1625	ev_stop (EV_A_ (W)w);	2086	ev_stop (EV_A_ (W)w);
1626		2087
1627	fd_change (EV_A_ w->fd, 1);	2088	fd_change (EV_A_ w->fd, 1);
		2089
		2090	EV_FREQUENT_CHECK;
1628	}	2091	}
1629		2092
1630	void noinline	2093	void noinline
1631	ev_timer_start (EV_P_ ev_timer *w)	2094	ev_timer_start (EV_P_ ev_timer *w)
1632	{	2095	{
1633	if (expect_false (ev_is_active (w)))	2096	if (expect_false (ev_is_active (w)))
1634	return;	2097	return;
1635		2098
1636	((WT)w)->at += mn_now;	2099	ev_at (w) += mn_now;
1637		2100
1638	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2101	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1639		2102
		2103	EV_FREQUENT_CHECK;
		2104
		2105	++timercnt;
1640	ev_start (EV_A_ (W)w, ++timercnt);	2106	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1641	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2107	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1642	timers [timercnt - 1] = (WT)w;	2108	ANHE_w (timers [ev_active (w)]) = (WT)w;
1643	upheap (timers, timercnt - 1);	2109	ANHE_at_cache (timers [ev_active (w)]);
		2110	upheap (timers, ev_active (w));
1644		2111
		2112	EV_FREQUENT_CHECK;
		2113
1645	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	2114	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1646	}	2115	}
1647		2116
1648	void noinline	2117	void noinline
1649	ev_timer_stop (EV_P_ ev_timer *w)	2118	ev_timer_stop (EV_P_ ev_timer *w)
1650	{	2119	{
1651	clear_pending (EV_A_ (W)w);	2120	clear_pending (EV_A_ (W)w);
1652	if (expect_false (!ev_is_active (w)))	2121	if (expect_false (!ev_is_active (w)))
1653	return;	2122	return;
1654		2123
1655	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));	2124	EV_FREQUENT_CHECK;
1656		2125
1657	{	2126	{
1658	int active = ((W)w)->active;	2127	int active = ev_active (w);
1659		2128
		2129	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2130
		2131	--timercnt;
		2132
1660	if (expect_true (--active < --timercnt))	2133	if (expect_true (active < timercnt + HEAP0))
1661	{	2134	{
1662	timers [active] = timers [timercnt];	2135	timers [active] = timers [timercnt + HEAP0];
1663	adjustheap (timers, timercnt, active);	2136	adjustheap (timers, timercnt, active);
1664	}	2137	}
1665	}	2138	}
1666		2139
1667	((WT)w)->at -= mn_now;	2140	EV_FREQUENT_CHECK;
		2141
		2142	ev_at (w) -= mn_now;
1668		2143
1669	ev_stop (EV_A_ (W)w);	2144	ev_stop (EV_A_ (W)w);
1670	}	2145	}
1671		2146
1672	void noinline	2147	void noinline
1673	ev_timer_again (EV_P_ ev_timer *w)	2148	ev_timer_again (EV_P_ ev_timer *w)
1674	{	2149	{
		2150	EV_FREQUENT_CHECK;
		2151
1675	if (ev_is_active (w))	2152	if (ev_is_active (w))
1676	{	2153	{
1677	if (w->repeat)	2154	if (w->repeat)
1678	{	2155	{
1679	((WT)w)->at = mn_now + w->repeat;	2156	ev_at (w) = mn_now + w->repeat;
		2157	ANHE_at_cache (timers [ev_active (w)]);
1680	adjustheap (timers, timercnt, ((W)w)->active - 1);	2158	adjustheap (timers, timercnt, ev_active (w));
1681	}	2159	}
1682	else	2160	else
1683	ev_timer_stop (EV_A_ w);	2161	ev_timer_stop (EV_A_ w);
1684	}	2162	}
1685	else if (w->repeat)	2163	else if (w->repeat)
1686	{	2164	{
1687	w->at = w->repeat;	2165	ev_at (w) = w->repeat;
1688	ev_timer_start (EV_A_ w);	2166	ev_timer_start (EV_A_ w);
1689	}	2167	}
		2168
		2169	EV_FREQUENT_CHECK;
1690	}	2170	}
1691		2171
1692	#if EV_PERIODIC_ENABLE	2172	#if EV_PERIODIC_ENABLE
1693	void noinline	2173	void noinline
1694	ev_periodic_start (EV_P_ ev_periodic *w)	2174	ev_periodic_start (EV_P_ ev_periodic *w)
1695	{	2175	{
1696	if (expect_false (ev_is_active (w)))	2176	if (expect_false (ev_is_active (w)))
1697	return;	2177	return;
1698		2178
1699	if (w->reschedule_cb)	2179	if (w->reschedule_cb)
1700	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2180	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1701	else if (w->interval)	2181	else if (w->interval)
1702	{	2182	{
1703	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2183	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 */	2184	/* 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;	2185	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1706	}	2186	}
1707	else	2187	else
1708	((WT)w)->at = w->offset;	2188	ev_at (w) = w->offset;
1709		2189
		2190	EV_FREQUENT_CHECK;
		2191
		2192	++periodiccnt;
1710	ev_start (EV_A_ (W)w, ++periodiccnt);	2193	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1711	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2194	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1712	periodics [periodiccnt - 1] = (WT)w;	2195	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1713	upheap (periodics, periodiccnt - 1);	2196	ANHE_at_cache (periodics [ev_active (w)]);
		2197	upheap (periodics, ev_active (w));
1714		2198
		2199	EV_FREQUENT_CHECK;
		2200
1715	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	2201	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1716	}	2202	}
1717		2203
1718	void noinline	2204	void noinline
1719	ev_periodic_stop (EV_P_ ev_periodic *w)	2205	ev_periodic_stop (EV_P_ ev_periodic *w)
1720	{	2206	{
1721	clear_pending (EV_A_ (W)w);	2207	clear_pending (EV_A_ (W)w);
1722	if (expect_false (!ev_is_active (w)))	2208	if (expect_false (!ev_is_active (w)))
1723	return;	2209	return;
1724		2210
1725	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));	2211	EV_FREQUENT_CHECK;
1726		2212
1727	{	2213	{
1728	int active = ((W)w)->active;	2214	int active = ev_active (w);
1729		2215
		2216	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2217
		2218	--periodiccnt;
		2219
1730	if (expect_true (--active < --periodiccnt))	2220	if (expect_true (active < periodiccnt + HEAP0))
1731	{	2221	{
1732	periodics [active] = periodics [periodiccnt];	2222	periodics [active] = periodics [periodiccnt + HEAP0];
1733	adjustheap (periodics, periodiccnt, active);	2223	adjustheap (periodics, periodiccnt, active);
1734	}	2224	}
1735	}	2225	}
1736		2226
		2227	EV_FREQUENT_CHECK;
		2228
1737	ev_stop (EV_A_ (W)w);	2229	ev_stop (EV_A_ (W)w);
1738	}	2230	}
1739		2231
1740	void noinline	2232	void noinline
1741	ev_periodic_again (EV_P_ ev_periodic *w)	2233	ev_periodic_again (EV_P_ ev_periodic *w)
…		…
1758	#endif	2250	#endif
1759	if (expect_false (ev_is_active (w)))	2251	if (expect_false (ev_is_active (w)))
1760	return;	2252	return;
1761		2253
1762	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2254	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		2255
		2256	evpipe_init (EV_A);
		2257
		2258	EV_FREQUENT_CHECK;
1763		2259
1764	{	2260	{
1765	#ifndef _WIN32	2261	#ifndef _WIN32
1766	sigset_t full, prev;	2262	sigset_t full, prev;
1767	sigfillset (&full);	2263	sigfillset (&full);
…		…
1779	wlist_add (&signals [w->signum - 1].head, (WL)w);	2275	wlist_add (&signals [w->signum - 1].head, (WL)w);
1780		2276
1781	if (!((WL)w)->next)	2277	if (!((WL)w)->next)
1782	{	2278	{
1783	#if _WIN32	2279	#if _WIN32
1784	signal (w->signum, sighandler);	2280	signal (w->signum, ev_sighandler);
1785	#else	2281	#else
1786	struct sigaction sa;	2282	struct sigaction sa;
1787	sa.sa_handler = sighandler;	2283	sa.sa_handler = ev_sighandler;
1788	sigfillset (&sa.sa_mask);	2284	sigfillset (&sa.sa_mask);
1789	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2285	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1790	sigaction (w->signum, &sa, 0);	2286	sigaction (w->signum, &sa, 0);
1791	#endif	2287	#endif
1792	}	2288	}
		2289
		2290	EV_FREQUENT_CHECK;
1793	}	2291	}
1794		2292
1795	void noinline	2293	void noinline
1796	ev_signal_stop (EV_P_ ev_signal *w)	2294	ev_signal_stop (EV_P_ ev_signal *w)
1797	{	2295	{
1798	clear_pending (EV_A_ (W)w);	2296	clear_pending (EV_A_ (W)w);
1799	if (expect_false (!ev_is_active (w)))	2297	if (expect_false (!ev_is_active (w)))
1800	return;	2298	return;
1801		2299
		2300	EV_FREQUENT_CHECK;
		2301
1802	wlist_del (&signals [w->signum - 1].head, (WL)w);	2302	wlist_del (&signals [w->signum - 1].head, (WL)w);
1803	ev_stop (EV_A_ (W)w);	2303	ev_stop (EV_A_ (W)w);
1804		2304
1805	if (!signals [w->signum - 1].head)	2305	if (!signals [w->signum - 1].head)
1806	signal (w->signum, SIG_DFL);	2306	signal (w->signum, SIG_DFL);
		2307
		2308	EV_FREQUENT_CHECK;
1807	}	2309	}
1808		2310
1809	void	2311	void
1810	ev_child_start (EV_P_ ev_child *w)	2312	ev_child_start (EV_P_ ev_child *w)
1811	{	2313	{
…		…
1813	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2315	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1814	#endif	2316	#endif
1815	if (expect_false (ev_is_active (w)))	2317	if (expect_false (ev_is_active (w)))
1816	return;	2318	return;
1817		2319
		2320	EV_FREQUENT_CHECK;
		2321
1818	ev_start (EV_A_ (W)w, 1);	2322	ev_start (EV_A_ (W)w, 1);
1819	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2323	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2324
		2325	EV_FREQUENT_CHECK;
1820	}	2326	}
1821		2327
1822	void	2328	void
1823	ev_child_stop (EV_P_ ev_child *w)	2329	ev_child_stop (EV_P_ ev_child *w)
1824	{	2330	{
1825	clear_pending (EV_A_ (W)w);	2331	clear_pending (EV_A_ (W)w);
1826	if (expect_false (!ev_is_active (w)))	2332	if (expect_false (!ev_is_active (w)))
1827	return;	2333	return;
1828		2334
		2335	EV_FREQUENT_CHECK;
		2336
1829	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2337	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1830	ev_stop (EV_A_ (W)w);	2338	ev_stop (EV_A_ (W)w);
		2339
		2340	EV_FREQUENT_CHECK;
1831	}	2341	}
1832		2342
1833	#if EV_STAT_ENABLE	2343	#if EV_STAT_ENABLE
1834		2344
1835	# ifdef _WIN32	2345	# ifdef _WIN32
…		…
1853	if (w->wd < 0)	2363	if (w->wd < 0)
1854	{	2364	{
1855	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2365	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1856		2366
1857	/* monitor some parent directory for speedup hints */	2367	/* monitor some parent directory for speedup hints */
		2368	/* note that exceeding the hardcoded limit is not a correctness issue, */
		2369	/* but an efficiency issue only */
1858	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2370	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1859	{	2371	{
1860	char path [4096];	2372	char path [4096];
1861	strcpy (path, w->path);	2373	strcpy (path, w->path);
1862		2374
…		…
2061	else	2573	else
2062	#endif	2574	#endif
2063	ev_timer_start (EV_A_ &w->timer);	2575	ev_timer_start (EV_A_ &w->timer);
2064		2576
2065	ev_start (EV_A_ (W)w, 1);	2577	ev_start (EV_A_ (W)w, 1);
		2578
		2579	EV_FREQUENT_CHECK;
2066	}	2580	}
2067		2581
2068	void	2582	void
2069	ev_stat_stop (EV_P_ ev_stat *w)	2583	ev_stat_stop (EV_P_ ev_stat *w)
2070	{	2584	{
2071	clear_pending (EV_A_ (W)w);	2585	clear_pending (EV_A_ (W)w);
2072	if (expect_false (!ev_is_active (w)))	2586	if (expect_false (!ev_is_active (w)))
2073	return;	2587	return;
2074		2588
		2589	EV_FREQUENT_CHECK;
		2590
2075	#if EV_USE_INOTIFY	2591	#if EV_USE_INOTIFY
2076	infy_del (EV_A_ w);	2592	infy_del (EV_A_ w);
2077	#endif	2593	#endif
2078	ev_timer_stop (EV_A_ &w->timer);	2594	ev_timer_stop (EV_A_ &w->timer);
2079		2595
2080	ev_stop (EV_A_ (W)w);	2596	ev_stop (EV_A_ (W)w);
		2597
		2598	EV_FREQUENT_CHECK;
2081	}	2599	}
2082	#endif	2600	#endif
2083		2601
2084	#if EV_IDLE_ENABLE	2602	#if EV_IDLE_ENABLE
2085	void	2603	void
…		…
2087	{	2605	{
2088	if (expect_false (ev_is_active (w)))	2606	if (expect_false (ev_is_active (w)))
2089	return;	2607	return;
2090		2608
2091	pri_adjust (EV_A_ (W)w);	2609	pri_adjust (EV_A_ (W)w);
		2610
		2611	EV_FREQUENT_CHECK;
2092		2612
2093	{	2613	{
2094	int active = ++idlecnt [ABSPRI (w)];	2614	int active = ++idlecnt [ABSPRI (w)];
2095		2615
2096	++idleall;	2616	++idleall;
2097	ev_start (EV_A_ (W)w, active);	2617	ev_start (EV_A_ (W)w, active);
2098		2618
2099	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2619	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2100	idles [ABSPRI (w)][active - 1] = w;	2620	idles [ABSPRI (w)][active - 1] = w;
2101	}	2621	}
		2622
		2623	EV_FREQUENT_CHECK;
2102	}	2624	}
2103		2625
2104	void	2626	void
2105	ev_idle_stop (EV_P_ ev_idle *w)	2627	ev_idle_stop (EV_P_ ev_idle *w)
2106	{	2628	{
2107	clear_pending (EV_A_ (W)w);	2629	clear_pending (EV_A_ (W)w);
2108	if (expect_false (!ev_is_active (w)))	2630	if (expect_false (!ev_is_active (w)))
2109	return;	2631	return;
2110		2632
		2633	EV_FREQUENT_CHECK;
		2634
2111	{	2635	{
2112	int active = ((W)w)->active;	2636	int active = ev_active (w);
2113		2637
2114	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2638	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2115	((W)idles [ABSPRI (w)][active - 1])->active = active;	2639	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2116		2640
2117	ev_stop (EV_A_ (W)w);	2641	ev_stop (EV_A_ (W)w);
2118	--idleall;	2642	--idleall;
2119	}	2643	}
		2644
		2645	EV_FREQUENT_CHECK;
2120	}	2646	}
2121	#endif	2647	#endif
2122		2648
2123	void	2649	void
2124	ev_prepare_start (EV_P_ ev_prepare *w)	2650	ev_prepare_start (EV_P_ ev_prepare *w)
2125	{	2651	{
2126	if (expect_false (ev_is_active (w)))	2652	if (expect_false (ev_is_active (w)))
2127	return;	2653	return;
		2654
		2655	EV_FREQUENT_CHECK;
2128		2656
2129	ev_start (EV_A_ (W)w, ++preparecnt);	2657	ev_start (EV_A_ (W)w, ++preparecnt);
2130	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2658	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2131	prepares [preparecnt - 1] = w;	2659	prepares [preparecnt - 1] = w;
		2660
		2661	EV_FREQUENT_CHECK;
2132	}	2662	}
2133		2663
2134	void	2664	void
2135	ev_prepare_stop (EV_P_ ev_prepare *w)	2665	ev_prepare_stop (EV_P_ ev_prepare *w)
2136	{	2666	{
2137	clear_pending (EV_A_ (W)w);	2667	clear_pending (EV_A_ (W)w);
2138	if (expect_false (!ev_is_active (w)))	2668	if (expect_false (!ev_is_active (w)))
2139	return;	2669	return;
2140		2670
		2671	EV_FREQUENT_CHECK;
		2672
2141	{	2673	{
2142	int active = ((W)w)->active;	2674	int active = ev_active (w);
		2675
2143	prepares [active - 1] = prepares [--preparecnt];	2676	prepares [active - 1] = prepares [--preparecnt];
2144	((W)prepares [active - 1])->active = active;	2677	ev_active (prepares [active - 1]) = active;
2145	}	2678	}
2146		2679
2147	ev_stop (EV_A_ (W)w);	2680	ev_stop (EV_A_ (W)w);
		2681
		2682	EV_FREQUENT_CHECK;
2148	}	2683	}
2149		2684
2150	void	2685	void
2151	ev_check_start (EV_P_ ev_check *w)	2686	ev_check_start (EV_P_ ev_check *w)
2152	{	2687	{
2153	if (expect_false (ev_is_active (w)))	2688	if (expect_false (ev_is_active (w)))
2154	return;	2689	return;
		2690
		2691	EV_FREQUENT_CHECK;
2155		2692
2156	ev_start (EV_A_ (W)w, ++checkcnt);	2693	ev_start (EV_A_ (W)w, ++checkcnt);
2157	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2694	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2158	checks [checkcnt - 1] = w;	2695	checks [checkcnt - 1] = w;
		2696
		2697	EV_FREQUENT_CHECK;
2159	}	2698	}
2160		2699
2161	void	2700	void
2162	ev_check_stop (EV_P_ ev_check *w)	2701	ev_check_stop (EV_P_ ev_check *w)
2163	{	2702	{
2164	clear_pending (EV_A_ (W)w);	2703	clear_pending (EV_A_ (W)w);
2165	if (expect_false (!ev_is_active (w)))	2704	if (expect_false (!ev_is_active (w)))
2166	return;	2705	return;
2167		2706
		2707	EV_FREQUENT_CHECK;
		2708
2168	{	2709	{
2169	int active = ((W)w)->active;	2710	int active = ev_active (w);
		2711
2170	checks [active - 1] = checks [--checkcnt];	2712	checks [active - 1] = checks [--checkcnt];
2171	((W)checks [active - 1])->active = active;	2713	ev_active (checks [active - 1]) = active;
2172	}	2714	}
2173		2715
2174	ev_stop (EV_A_ (W)w);	2716	ev_stop (EV_A_ (W)w);
		2717
		2718	EV_FREQUENT_CHECK;
2175	}	2719	}
2176		2720
2177	#if EV_EMBED_ENABLE	2721	#if EV_EMBED_ENABLE
2178	void noinline	2722	void noinline
2179	ev_embed_sweep (EV_P_ ev_embed *w)	2723	ev_embed_sweep (EV_P_ ev_embed *w)
2180	{	2724	{
2181	ev_loop (w->loop, EVLOOP_NONBLOCK);	2725	ev_loop (w->other, EVLOOP_NONBLOCK);
2182	}	2726	}
2183		2727
2184	static void	2728	static void
2185	embed_cb (EV_P_ ev_io *io, int revents)	2729	embed_io_cb (EV_P_ ev_io *io, int revents)
2186	{	2730	{
2187	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2731	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2188		2732
2189	if (ev_cb (w))	2733	if (ev_cb (w))
2190	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2734	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2191	else	2735	else
2192	ev_embed_sweep (loop, w);	2736	ev_loop (w->other, EVLOOP_NONBLOCK);
2193	}	2737	}
		2738
		2739	static void
		2740	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2741	{
		2742	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2743
		2744	{
		2745	struct ev_loop *loop = w->other;
		2746
		2747	while (fdchangecnt)
		2748	{
		2749	fd_reify (EV_A);
		2750	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2751	}
		2752	}
		2753	}
		2754
		2755	#if 0
		2756	static void
		2757	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2758	{
		2759	ev_idle_stop (EV_A_ idle);
		2760	}
		2761	#endif
2194		2762
2195	void	2763	void
2196	ev_embed_start (EV_P_ ev_embed *w)	2764	ev_embed_start (EV_P_ ev_embed *w)
2197	{	2765	{
2198	if (expect_false (ev_is_active (w)))	2766	if (expect_false (ev_is_active (w)))
2199	return;	2767	return;
2200		2768
2201	{	2769	{
2202	struct ev_loop *loop = w->loop;	2770	struct ev_loop *loop = w->other;
2203	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2771	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2204	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2772	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2205	}	2773	}
		2774
		2775	EV_FREQUENT_CHECK;
2206		2776
2207	ev_set_priority (&w->io, ev_priority (w));	2777	ev_set_priority (&w->io, ev_priority (w));
2208	ev_io_start (EV_A_ &w->io);	2778	ev_io_start (EV_A_ &w->io);
2209		2779
		2780	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2781	ev_set_priority (&w->prepare, EV_MINPRI);
		2782	ev_prepare_start (EV_A_ &w->prepare);
		2783
		2784	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2785
2210	ev_start (EV_A_ (W)w, 1);	2786	ev_start (EV_A_ (W)w, 1);
		2787
		2788	EV_FREQUENT_CHECK;
2211	}	2789	}
2212		2790
2213	void	2791	void
2214	ev_embed_stop (EV_P_ ev_embed *w)	2792	ev_embed_stop (EV_P_ ev_embed *w)
2215	{	2793	{
2216	clear_pending (EV_A_ (W)w);	2794	clear_pending (EV_A_ (W)w);
2217	if (expect_false (!ev_is_active (w)))	2795	if (expect_false (!ev_is_active (w)))
2218	return;	2796	return;
2219		2797
		2798	EV_FREQUENT_CHECK;
		2799
2220	ev_io_stop (EV_A_ &w->io);	2800	ev_io_stop (EV_A_ &w->io);
		2801	ev_prepare_stop (EV_A_ &w->prepare);
2221		2802
2222	ev_stop (EV_A_ (W)w);	2803	ev_stop (EV_A_ (W)w);
		2804
		2805	EV_FREQUENT_CHECK;
2223	}	2806	}
2224	#endif	2807	#endif
2225		2808
2226	#if EV_FORK_ENABLE	2809	#if EV_FORK_ENABLE
2227	void	2810	void
2228	ev_fork_start (EV_P_ ev_fork *w)	2811	ev_fork_start (EV_P_ ev_fork *w)
2229	{	2812	{
2230	if (expect_false (ev_is_active (w)))	2813	if (expect_false (ev_is_active (w)))
2231	return;	2814	return;
		2815
		2816	EV_FREQUENT_CHECK;
2232		2817
2233	ev_start (EV_A_ (W)w, ++forkcnt);	2818	ev_start (EV_A_ (W)w, ++forkcnt);
2234	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2819	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2235	forks [forkcnt - 1] = w;	2820	forks [forkcnt - 1] = w;
		2821
		2822	EV_FREQUENT_CHECK;
2236	}	2823	}
2237		2824
2238	void	2825	void
2239	ev_fork_stop (EV_P_ ev_fork *w)	2826	ev_fork_stop (EV_P_ ev_fork *w)
2240	{	2827	{
2241	clear_pending (EV_A_ (W)w);	2828	clear_pending (EV_A_ (W)w);
2242	if (expect_false (!ev_is_active (w)))	2829	if (expect_false (!ev_is_active (w)))
2243	return;	2830	return;
2244		2831
		2832	EV_FREQUENT_CHECK;
		2833
2245	{	2834	{
2246	int active = ((W)w)->active;	2835	int active = ev_active (w);
		2836
2247	forks [active - 1] = forks [--forkcnt];	2837	forks [active - 1] = forks [--forkcnt];
2248	((W)forks [active - 1])->active = active;	2838	ev_active (forks [active - 1]) = active;
2249	}	2839	}
2250		2840
2251	ev_stop (EV_A_ (W)w);	2841	ev_stop (EV_A_ (W)w);
		2842
		2843	EV_FREQUENT_CHECK;
		2844	}
		2845	#endif
		2846
		2847	#if EV_ASYNC_ENABLE
		2848	void
		2849	ev_async_start (EV_P_ ev_async *w)
		2850	{
		2851	if (expect_false (ev_is_active (w)))
		2852	return;
		2853
		2854	evpipe_init (EV_A);
		2855
		2856	EV_FREQUENT_CHECK;
		2857
		2858	ev_start (EV_A_ (W)w, ++asynccnt);
		2859	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2860	asyncs [asynccnt - 1] = w;
		2861
		2862	EV_FREQUENT_CHECK;
		2863	}
		2864
		2865	void
		2866	ev_async_stop (EV_P_ ev_async *w)
		2867	{
		2868	clear_pending (EV_A_ (W)w);
		2869	if (expect_false (!ev_is_active (w)))
		2870	return;
		2871
		2872	EV_FREQUENT_CHECK;
		2873
		2874	{
		2875	int active = ev_active (w);
		2876
		2877	asyncs [active - 1] = asyncs [--asynccnt];
		2878	ev_active (asyncs [active - 1]) = active;
		2879	}
		2880
		2881	ev_stop (EV_A_ (W)w);
		2882
		2883	EV_FREQUENT_CHECK;
		2884	}
		2885
		2886	void
		2887	ev_async_send (EV_P_ ev_async *w)
		2888	{
		2889	w->sent = 1;
		2890	evpipe_write (EV_A_ &gotasync);
2252	}	2891	}
2253	#endif	2892	#endif
2254		2893
2255	/*****************************************************************************/	2894	/*****************************************************************************/
2256		2895
…		…
2314	ev_timer_set (&once->to, timeout, 0.);	2953	ev_timer_set (&once->to, timeout, 0.);
2315	ev_timer_start (EV_A_ &once->to);	2954	ev_timer_start (EV_A_ &once->to);
2316	}	2955	}
2317	}	2956	}
2318		2957
		2958	#if EV_MULTIPLICITY
		2959	#include "ev_wrap.h"
		2960	#endif
		2961
2319	#ifdef __cplusplus	2962	#ifdef __cplusplus
2320	}	2963	}
2321	#endif	2964	#endif
2322		2965

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