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Comparing libev/ev.c (file contents):
Revision 1.185 by root, Fri Dec 14 18:22:30 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
…		…
207	#if !EV_STAT_ENABLE	260	#if !EV_STAT_ENABLE
208	# undef EV_USE_INOTIFY	261	# undef EV_USE_INOTIFY
209	# define EV_USE_INOTIFY 0	262	# define EV_USE_INOTIFY 0
210	#endif	263	#endif
211		264
		265	#if !EV_USE_NANOSLEEP
		266	# ifndef _WIN32
		267	# include <sys/select.h>
		268	# endif
		269	#endif
		270
212	#if EV_USE_INOTIFY	271	#if EV_USE_INOTIFY
213	# include <sys/inotify.h>	272	# include <sys/inotify.h>
214	#endif	273	#endif
215		274
216	#if EV_SELECT_IS_WINSOCKET	275	#if EV_SELECT_IS_WINSOCKET
217	# include <winsock.h>	276	# include <winsock.h>
218	#endif	277	#endif
219		278
		279	#if EV_USE_EVENTFD
		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" {
		284	# endif
		285	int eventfd (unsigned int initval, int flags);
		286	# ifdef __cplusplus
		287	}
		288	# endif
		289	#endif
		290
220	/**/	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
221		303
222	/*	304	/*
223	* This is used to avoid floating point rounding problems.	305	* This is used to avoid floating point rounding problems.
224	* It is added to ev_rt_now when scheduling periodics	306	* It is added to ev_rt_now when scheduling periodics
225	* to ensure progress, time-wise, even when rounding	307	* to ensure progress, time-wise, even when rounding
…		…
237	# define expect(expr,value) __builtin_expect ((expr),(value))	319	# define expect(expr,value) __builtin_expect ((expr),(value))
238	# define noinline __attribute__ ((noinline))	320	# define noinline __attribute__ ((noinline))
239	#else	321	#else
240	# define expect(expr,value) (expr)	322	# define expect(expr,value) (expr)
241	# define noinline	323	# define noinline
242	# if __STDC_VERSION__ < 199901L	324	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
243	# define inline	325	# define inline
244	# endif	326	# endif
245	#endif	327	#endif
246		328
247	#define expect_false(expr) expect ((expr) != 0, 0)	329	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
262		344
263	typedef ev_watcher *W;	345	typedef ev_watcher *W;
264	typedef ev_watcher_list *WL;	346	typedef ev_watcher_list *WL;
265	typedef ev_watcher_time *WT;	347	typedef ev_watcher_time *WT;
266		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 */
267	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
268		357
269	#ifdef _WIN32	358	#ifdef _WIN32
270	# include "ev_win32.c"	359	# include "ev_win32.c"
271	#endif	360	#endif
272		361
…		…
293	perror (msg);	382	perror (msg);
294	abort ();	383	abort ();
295	}	384	}
296	}	385	}
297		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
298	static void *(*alloc)(void *ptr, long size);	402	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
299		403
300	void	404	void
301	ev_set_allocator (void *(*cb)(void *ptr, long size))	405	ev_set_allocator (void *(*cb)(void *ptr, long size))
302	{	406	{
303	alloc = cb;	407	alloc = cb;
304	}	408	}
305		409
306	inline_speed void *	410	inline_speed void *
307	ev_realloc (void *ptr, long size)	411	ev_realloc (void *ptr, long size)
308	{	412	{
309	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	413	ptr = alloc (ptr, size);
310		414
311	if (!ptr && size)	415	if (!ptr && size)
312	{	416	{
313	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	417	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314	abort ();	418	abort ();
…		…
337	W w;	441	W w;
338	int events;	442	int events;
339	} ANPENDING;	443	} ANPENDING;
340		444
341	#if EV_USE_INOTIFY	445	#if EV_USE_INOTIFY
		446	/* hash table entry per inotify-id */
342	typedef struct	447	typedef struct
343	{	448	{
344	WL head;	449	WL head;
345	} 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)
346	#endif	469	#endif
347		470
348	#if EV_MULTIPLICITY	471	#if EV_MULTIPLICITY
349		472
350	struct ev_loop	473	struct ev_loop
…		…
408	{	531	{
409	return ev_rt_now;	532	return ev_rt_now;
410	}	533	}
411	#endif	534	#endif
412		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
413	int inline_size	565	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	566	array_nextsize (int elem, int cur, int cnt)
415	{	567	{
416	int ncur = cur + 1;	568	int ncur = cur + 1;
417		569
418	do	570	do
419	ncur <<= 1;	571	ncur <<= 1;
420	while (cnt > ncur);	572	while (cnt > ncur);
421		573
422	/* 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 */
423	if (elem * ncur > 4096)	575	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
424	{	576	{
425	ncur *= elem;	577	ncur *= elem;
426	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;	578	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
427	ncur = ncur - sizeof (void *) * 4;	579	ncur = ncur - sizeof (void *) * 4;
428	ncur /= elem;	580	ncur /= elem;
429	}	581	}
430		582
431	return ncur;	583	return ncur;
…		…
543		695
544	#if EV_SELECT_IS_WINSOCKET	696	#if EV_SELECT_IS_WINSOCKET
545	if (events)	697	if (events)
546	{	698	{
547	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
548	anfd->handle = _get_osfhandle (fd);	703	anfd->handle = _get_osfhandle (fd);
		704	#endif
549	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));
550	}	706	}
551	#endif	707	#endif
552		708
553	{	709	{
…		…
641	}	797	}
642	}	798	}
643		799
644	/*****************************************************************************/	800	/*****************************************************************************/
645		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 */
646	void inline_speed	822	void inline_speed
647	upheap (WT *heap, int k)	823	downheap (ANHE *heap, int N, int k)
648	{	824	{
649	WT w = heap [k];	825	ANHE he = heap [k];
		826	ANHE *E = heap + N + HEAP0;
650		827
651	while (k)	828	for (;;)
652	{	829	{
653	int p = (k - 1) >> 1;	830	ev_tstamp minat;
		831	ANHE *minpos;
		832	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
654		833
655	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
656	break;	850	break;
657		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
658	heap [k] = heap [p];	914	heap [k] = heap [p];
659	((W)heap [k])->active = k + 1;	915	ev_active (ANHE_w (heap [k])) = k;
660	k = p;	916	k = p;
661	}	917	}
662		918
663	heap [k] = w;	919	heap [k] = he;
664	((W)heap [k])->active = k + 1;	920	ev_active (ANHE_w (he)) = k;
665	}
666
667	void inline_speed
668	downheap (WT *heap, int N, int k)
669	{
670	WT w = heap [k];
671
672	for (;;)
673	{
674	int c = (k << 1) + 1;
675
676	if (c >= N)
677	break;
678
679	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
680	? 1 : 0;
681
682	if (w->at <= heap [c]->at)
683	break;
684
685	heap [k] = heap [c];
686	((W)heap [k])->active = k + 1;
687
688	k = c;
689	}
690
691	heap [k] = w;
692	((W)heap [k])->active = k + 1;
693	}	921	}
694		922
695	void inline_size	923	void inline_size
696	adjustheap (WT *heap, int N, int k)	924	adjustheap (ANHE *heap, int N, int k)
697	{	925	{
		926	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
698	upheap (heap, k);	927	upheap (heap, k);
		928	else
699	downheap (heap, N, k);	929	downheap (heap, N, k);
700	}	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
701		957
702	/*****************************************************************************/	958	/*****************************************************************************/
703		959
704	typedef struct	960	typedef struct
705	{	961	{
706	WL head;	962	WL head;
707	sig_atomic_t volatile gotsig;	963	EV_ATOMIC_T gotsig;
708	} ANSIG;	964	} ANSIG;
709		965
710	static ANSIG *signals;	966	static ANSIG *signals;
711	static int signalmax;	967	static int signalmax;
712		968
713	static int sigpipe [2];	969	static EV_ATOMIC_T gotsig;
714	static sig_atomic_t volatile gotsig;
715	static ev_io sigev;
716		970
717	void inline_size	971	void inline_size
718	signals_init (ANSIG *base, int count)	972	signals_init (ANSIG *base, int count)
719	{	973	{
720	while (count--)	974	while (count--)
…		…
724		978
725	++base;	979	++base;
726	}	980	}
727	}	981	}
728		982
729	static void	983	/*****************************************************************************/
730	sighandler (int signum)
731	{
732	#if _WIN32
733	signal (signum, sighandler);
734	#endif
735
736	signals [signum - 1].gotsig = 1;
737
738	if (!gotsig)
739	{
740	int old_errno = errno;
741	gotsig = 1;
742	write (sigpipe [1], &signum, 1);
743	errno = old_errno;
744	}
745	}
746
747	void noinline
748	ev_feed_signal_event (EV_P_ int signum)
749	{
750	WL w;
751
752	#if EV_MULTIPLICITY
753	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
754	#endif
755
756	--signum;
757
758	if (signum < 0 || signum >= signalmax)
759	return;
760
761	signals [signum].gotsig = 0;
762
763	for (w = signals [signum].head; w; w = w->next)
764	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
765	}
766
767	static void
768	sigcb (EV_P_ ev_io *iow, int revents)
769	{
770	int signum;
771
772	read (sigpipe [0], &revents, 1);
773	gotsig = 0;
774
775	for (signum = signalmax; signum--; )
776	if (signals [signum].gotsig)
777	ev_feed_signal_event (EV_A_ signum + 1);
778	}
779		984
780	void inline_speed	985	void inline_speed
781	fd_intern (int fd)	986	fd_intern (int fd)
782	{	987	{
783	#ifdef _WIN32	988	#ifdef _WIN32
…		…
788	fcntl (fd, F_SETFL, O_NONBLOCK);	993	fcntl (fd, F_SETFL, O_NONBLOCK);
789	#endif	994	#endif
790	}	995	}
791		996
792	static void noinline	997	static void noinline
793	siginit (EV_P)	998	evpipe_init (EV_P)
794	{	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
795	fd_intern (sigpipe [0]);	1015	fd_intern (evpipe [0]);
796	fd_intern (sigpipe [1]);	1016	fd_intern (evpipe [1]);
		1017	ev_io_set (&pipeev, evpipe [0], EV_READ);
		1018	}
797		1019
798	ev_io_set (&sigev, sigpipe [0], EV_READ);
799	ev_io_start (EV_A_ &sigev);	1020	ev_io_start (EV_A_ &pipeev);
800	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
801	}	1088	}
802		1089
803	/*****************************************************************************/	1090	/*****************************************************************************/
804		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
805	static WL childs [EV_PID_HASHSIZE];	1129	static WL childs [EV_PID_HASHSIZE];
806		1130
807	#ifndef _WIN32	1131	#ifndef _WIN32
808		1132
809	static ev_signal childev;	1133	static ev_signal childev;
810		1134
		1135	#ifndef WIFCONTINUED
		1136	# define WIFCONTINUED(status) 0
		1137	#endif
		1138
811	void inline_speed	1139	void inline_speed
812	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1140	child_reap (EV_P_ int chain, int pid, int status)
813	{	1141	{
814	ev_child *w;	1142	ev_child *w;
		1143	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
815		1144
816	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	{
817	if (w->pid == pid || !w->pid)	1147	if ((w->pid == pid || !w->pid)
		1148	&& (!traced || (w->flags & 1)))
818	{	1149	{
819	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 */
820	w->rpid = pid;	1151	w->rpid = pid;
821	w->rstatus = status;	1152	w->rstatus = status;
822	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1153	ev_feed_event (EV_A_ (W)w, EV_CHILD);
823	}	1154	}
		1155	}
824	}	1156	}
825		1157
826	#ifndef WCONTINUED	1158	#ifndef WCONTINUED
827	# define WCONTINUED 0	1159	# define WCONTINUED 0
828	#endif	1160	#endif
…		…
837	if (!WCONTINUED	1169	if (!WCONTINUED
838	|| errno != EINVAL	1170	|| errno != EINVAL
839	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1171	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840	return;	1172	return;
841		1173
842	/* 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 */
843	/* 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 */
844	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1176	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
845		1177
846	child_reap (EV_A_ sw, pid, pid, status);	1178	child_reap (EV_A_ pid, pid, status);
847	if (EV_PID_HASHSIZE > 1)	1179	if (EV_PID_HASHSIZE > 1)
848	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 */
849	}	1181	}
850		1182
851	#endif	1183	#endif
852		1184
853	/*****************************************************************************/	1185	/*****************************************************************************/
…		…
925	}	1257	}
926		1258
927	unsigned int	1259	unsigned int
928	ev_embeddable_backends (void)	1260	ev_embeddable_backends (void)
929	{	1261	{
930	return EVBACKEND_EPOLL	1262	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
931	| EVBACKEND_KQUEUE	1263
932	| 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;
933	}	1269	}
934		1270
935	unsigned int	1271	unsigned int
936	ev_backend (EV_P)	1272	ev_backend (EV_P)
937	{	1273	{
…		…
940		1276
941	unsigned int	1277	unsigned int
942	ev_loop_count (EV_P)	1278	ev_loop_count (EV_P)
943	{	1279	{
944	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;
945	}	1293	}
946		1294
947	static void noinline	1295	static void noinline
948	loop_init (EV_P_ unsigned int flags)	1296	loop_init (EV_P_ unsigned int flags)
949	{	1297	{
…		…
955	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1303	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
956	have_monotonic = 1;	1304	have_monotonic = 1;
957	}	1305	}
958	#endif	1306	#endif
959		1307
960	ev_rt_now = ev_time ();	1308	ev_rt_now = ev_time ();
961	mn_now = get_clock ();	1309	mn_now = get_clock ();
962	now_floor = mn_now;	1310	now_floor = mn_now;
963	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
964		1321
965	/* pid check not overridable via env */	1322	/* pid check not overridable via env */
966	#ifndef _WIN32	1323	#ifndef _WIN32
967	if (flags & EVFLAG_FORKCHECK)	1324	if (flags & EVFLAG_FORKCHECK)
968	curpid = getpid ();	1325	curpid = getpid ();
…		…
971	if (!(flags & EVFLAG_NOENV)	1328	if (!(flags & EVFLAG_NOENV)
972	&& !enable_secure ()	1329	&& !enable_secure ()
973	&& getenv ("LIBEV_FLAGS"))	1330	&& getenv ("LIBEV_FLAGS"))
974	flags = atoi (getenv ("LIBEV_FLAGS"));	1331	flags = atoi (getenv ("LIBEV_FLAGS"));
975		1332
976	if (!(flags & 0x0000ffffUL))	1333	if (!(flags & 0x0000ffffU))
977	flags |= ev_recommended_backends ();	1334	flags |= ev_recommended_backends ();
978
979	backend = 0;
980	backend_fd = -1;
981	#if EV_USE_INOTIFY
982	fs_fd = -2;
983	#endif
984		1335
985	#if EV_USE_PORT	1336	#if EV_USE_PORT
986	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1337	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987	#endif	1338	#endif
988	#if EV_USE_KQUEUE	1339	#if EV_USE_KQUEUE
…		…
996	#endif	1347	#endif
997	#if EV_USE_SELECT	1348	#if EV_USE_SELECT
998	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1349	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
999	#endif	1350	#endif
1000		1351
1001	ev_init (&sigev, sigcb);	1352	ev_init (&pipeev, pipecb);
1002	ev_set_priority (&sigev, EV_MAXPRI);	1353	ev_set_priority (&pipeev, EV_MAXPRI);
1003	}	1354	}
1004	}	1355	}
1005		1356
1006	static void noinline	1357	static void noinline
1007	loop_destroy (EV_P)	1358	loop_destroy (EV_P)
1008	{	1359	{
1009	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	}
1010		1378
1011	#if EV_USE_INOTIFY	1379	#if EV_USE_INOTIFY
1012	if (fs_fd >= 0)	1380	if (fs_fd >= 0)
1013	close (fs_fd);	1381	close (fs_fd);
1014	#endif	1382	#endif
…		…
1037	array_free (pending, [i]);	1405	array_free (pending, [i]);
1038	#if EV_IDLE_ENABLE	1406	#if EV_IDLE_ENABLE
1039	array_free (idle, [i]);	1407	array_free (idle, [i]);
1040	#endif	1408	#endif
1041	}	1409	}
		1410
		1411	ev_free (anfds); anfdmax = 0;
1042		1412
1043	/* have to use the microsoft-never-gets-it-right macro */	1413	/* have to use the microsoft-never-gets-it-right macro */
1044	array_free (fdchange, EMPTY);	1414	array_free (fdchange, EMPTY);
1045	array_free (timer, EMPTY);	1415	array_free (timer, EMPTY);
1046	#if EV_PERIODIC_ENABLE	1416	#if EV_PERIODIC_ENABLE
1047	array_free (periodic, EMPTY);	1417	array_free (periodic, EMPTY);
1048	#endif	1418	#endif
		1419	#if EV_FORK_ENABLE
		1420	array_free (fork, EMPTY);
		1421	#endif
1049	array_free (prepare, EMPTY);	1422	array_free (prepare, EMPTY);
1050	array_free (check, EMPTY);	1423	array_free (check, EMPTY);
		1424	#if EV_ASYNC_ENABLE
		1425	array_free (async, EMPTY);
		1426	#endif
1051		1427
1052	backend = 0;	1428	backend = 0;
1053	}	1429	}
1054		1430
		1431	#if EV_USE_INOTIFY
1055	void inline_size infy_fork (EV_P);	1432	void inline_size infy_fork (EV_P);
		1433	#endif
1056		1434
1057	void inline_size	1435	void inline_size
1058	loop_fork (EV_P)	1436	loop_fork (EV_P)
1059	{	1437	{
1060	#if EV_USE_PORT	1438	#if EV_USE_PORT
…		…
1068	#endif	1446	#endif
1069	#if EV_USE_INOTIFY	1447	#if EV_USE_INOTIFY
1070	infy_fork (EV_A);	1448	infy_fork (EV_A);
1071	#endif	1449	#endif
1072		1450
1073	if (ev_is_active (&sigev))	1451	if (ev_is_active (&pipeev))
1074	{	1452	{
1075	/* 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
1076		1459
1077	ev_ref (EV_A);	1460	ev_ref (EV_A);
1078	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	{
1079	close (sigpipe [0]);	1470	close (evpipe [0]);
1080	close (sigpipe [1]);	1471	close (evpipe [1]);
		1472	}
1081		1473
1082	while (pipe (sigpipe))
1083	syserr ("(libev) error creating pipe");
1084
1085	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);
1086	}	1477	}
1087		1478
1088	postfork = 0;	1479	postfork = 0;
1089	}	1480	}
1090		1481
…		…
1112	}	1503	}
1113		1504
1114	void	1505	void
1115	ev_loop_fork (EV_P)	1506	ev_loop_fork (EV_P)
1116	{	1507	{
1117	postfork = 1;	1508	postfork = 1; /* must be in line with ev_default_fork */
1118	}	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
1119		1543
1120	#endif	1544	#endif
1121		1545
1122	#if EV_MULTIPLICITY	1546	#if EV_MULTIPLICITY
1123	struct ev_loop *	1547	struct ev_loop *
…		…
1125	#else	1549	#else
1126	int	1550	int
1127	ev_default_loop (unsigned int flags)	1551	ev_default_loop (unsigned int flags)
1128	#endif	1552	#endif
1129	{	1553	{
1130	if (sigpipe [0] == sigpipe [1])
1131	if (pipe (sigpipe))
1132	return 0;
1133
1134	if (!ev_default_loop_ptr)	1554	if (!ev_default_loop_ptr)
1135	{	1555	{
1136	#if EV_MULTIPLICITY	1556	#if EV_MULTIPLICITY
1137	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1557	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1138	#else	1558	#else
…		…
1141		1561
1142	loop_init (EV_A_ flags);	1562	loop_init (EV_A_ flags);
1143		1563
1144	if (ev_backend (EV_A))	1564	if (ev_backend (EV_A))
1145	{	1565	{
1146	siginit (EV_A);
1147
1148	#ifndef _WIN32	1566	#ifndef _WIN32
1149	ev_signal_init (&childev, childcb, SIGCHLD);	1567	ev_signal_init (&childev, childcb, SIGCHLD);
1150	ev_set_priority (&childev, EV_MAXPRI);	1568	ev_set_priority (&childev, EV_MAXPRI);
1151	ev_signal_start (EV_A_ &childev);	1569	ev_signal_start (EV_A_ &childev);
1152	ev_unref (EV_A); /* child watcher should not keep loop alive */	1570	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1169	#ifndef _WIN32	1587	#ifndef _WIN32
1170	ev_ref (EV_A); /* child watcher */	1588	ev_ref (EV_A); /* child watcher */
1171	ev_signal_stop (EV_A_ &childev);	1589	ev_signal_stop (EV_A_ &childev);
1172	#endif	1590	#endif
1173		1591
1174	ev_ref (EV_A); /* signal watcher */
1175	ev_io_stop (EV_A_ &sigev);
1176
1177	close (sigpipe [0]); sigpipe [0] = 0;
1178	close (sigpipe [1]); sigpipe [1] = 0;
1179
1180	loop_destroy (EV_A);	1592	loop_destroy (EV_A);
1181	}	1593	}
1182		1594
1183	void	1595	void
1184	ev_default_fork (void)	1596	ev_default_fork (void)
…		…
1186	#if EV_MULTIPLICITY	1598	#if EV_MULTIPLICITY
1187	struct ev_loop *loop = ev_default_loop_ptr;	1599	struct ev_loop *loop = ev_default_loop_ptr;
1188	#endif	1600	#endif
1189		1601
1190	if (backend)	1602	if (backend)
1191	postfork = 1;	1603	postfork = 1; /* must be in line with ev_loop_fork */
1192	}	1604	}
1193		1605
1194	/*****************************************************************************/	1606	/*****************************************************************************/
1195		1607
1196	void	1608	void
…		…
1201		1613
1202	void inline_speed	1614	void inline_speed
1203	call_pending (EV_P)	1615	call_pending (EV_P)
1204	{	1616	{
1205	int pri;	1617	int pri;
		1618
		1619	EV_FREQUENT_CHECK;
1206		1620
1207	for (pri = NUMPRI; pri--; )	1621	for (pri = NUMPRI; pri--; )
1208	while (pendingcnt [pri])	1622	while (pendingcnt [pri])
1209	{	1623	{
1210	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1624	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
…		…
1215		1629
1216	p->w->pending = 0;	1630	p->w->pending = 0;
1217	EV_CB_INVOKE (p->w, p->events);	1631	EV_CB_INVOKE (p->w, p->events);
1218	}	1632	}
1219	}	1633	}
1220	}
1221		1634
1222	void inline_size	1635	EV_FREQUENT_CHECK;
1223	timers_reify (EV_P)
1224	{
1225	while (timercnt && ((WT)timers [0])->at <= mn_now)
1226	{
1227	ev_timer *w = (ev_timer *)timers [0];
1228
1229	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1230
1231	/* first reschedule or stop timer */
1232	if (w->repeat)
1233	{
1234	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1235
1236	((WT)w)->at += w->repeat;
1237	if (((WT)w)->at < mn_now)
1238	((WT)w)->at = mn_now;
1239
1240	downheap (timers, timercnt, 0);
1241	}
1242	else
1243	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1244
1245	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1246	}
1247	}	1636	}
1248
1249	#if EV_PERIODIC_ENABLE
1250	void inline_size
1251	periodics_reify (EV_P)
1252	{
1253	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1254	{
1255	ev_periodic *w = (ev_periodic *)periodics [0];
1256
1257	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1258
1259	/* first reschedule or stop timer */
1260	if (w->reschedule_cb)
1261	{
1262	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1263	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1264	downheap (periodics, periodiccnt, 0);
1265	}
1266	else if (w->interval)
1267	{
1268	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1269	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1270	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1271	downheap (periodics, periodiccnt, 0);
1272	}
1273	else
1274	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1275
1276	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1277	}
1278	}
1279
1280	static void noinline
1281	periodics_reschedule (EV_P)
1282	{
1283	int i;
1284
1285	/* adjust periodics after time jump */
1286	for (i = 0; i < periodiccnt; ++i)
1287	{
1288	ev_periodic *w = (ev_periodic *)periodics [i];
1289
1290	if (w->reschedule_cb)
1291	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1292	else if (w->interval)
1293	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1294	}
1295
1296	/* now rebuild the heap */
1297	for (i = periodiccnt >> 1; i--; )
1298	downheap (periodics, periodiccnt, i);
1299	}
1300	#endif
1301		1637
1302	#if EV_IDLE_ENABLE	1638	#if EV_IDLE_ENABLE
1303	void inline_size	1639	void inline_size
1304	idle_reify (EV_P)	1640	idle_reify (EV_P)
1305	{	1641	{
…		…
1317	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);	1653	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1318	break;	1654	break;
1319	}	1655	}
1320	}	1656	}
1321	}	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);
1322	}	1760	}
1323	#endif	1761	#endif
1324		1762
1325	void inline_speed	1763	void inline_speed
1326	time_update (EV_P_ ev_tstamp max_block)	1764	time_update (EV_P_ ev_tstamp max_block)
…		…
1355	*/	1793	*/
1356	for (i = 4; --i; )	1794	for (i = 4; --i; )
1357	{	1795	{
1358	rtmn_diff = ev_rt_now - mn_now;	1796	rtmn_diff = ev_rt_now - mn_now;
1359		1797
1360	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1798	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1361	return; /* all is well */	1799	return; /* all is well */
1362		1800
1363	ev_rt_now = ev_time ();	1801	ev_rt_now = ev_time ();
1364	mn_now = get_clock ();	1802	mn_now = get_clock ();
1365	now_floor = mn_now;	1803	now_floor = mn_now;
…		…
1381	#if EV_PERIODIC_ENABLE	1819	#if EV_PERIODIC_ENABLE
1382	periodics_reschedule (EV_A);	1820	periodics_reschedule (EV_A);
1383	#endif	1821	#endif
1384	/* 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 */
1385	for (i = 0; i < timercnt; ++i)	1823	for (i = 0; i < timercnt; ++i)
		1824	{
		1825	ANHE *he = timers + i + HEAP0;
1386	((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	}
1387	}	1829	}
1388		1830
1389	mn_now = ev_rt_now;	1831	mn_now = ev_rt_now;
1390	}	1832	}
1391	}	1833	}
…		…
1405	static int loop_done;	1847	static int loop_done;
1406		1848
1407	void	1849	void
1408	ev_loop (EV_P_ int flags)	1850	ev_loop (EV_P_ int flags)
1409	{	1851	{
1410	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1852	loop_done = EVUNLOOP_CANCEL;
1411	? EVUNLOOP_ONE
1412	: EVUNLOOP_CANCEL;
1413		1853
1414	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 */
1415		1855
1416	do	1856	do
1417	{	1857	{
…		…
1451	/* update fd-related kernel structures */	1891	/* update fd-related kernel structures */
1452	fd_reify (EV_A);	1892	fd_reify (EV_A);
1453		1893
1454	/* calculate blocking time */	1894	/* calculate blocking time */
1455	{	1895	{
1456	ev_tstamp block;	1896	ev_tstamp waittime = 0.;
		1897	ev_tstamp sleeptime = 0.;
1457		1898
1458	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1899	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1459	block = 0.; /* do not block at all */
1460	else
1461	{	1900	{
1462	/* update time to cancel out callback processing overhead */	1901	/* update time to cancel out callback processing overhead */
1463	time_update (EV_A_ 1e100);	1902	time_update (EV_A_ 1e100);
1464		1903
1465	block = MAX_BLOCKTIME;	1904	waittime = MAX_BLOCKTIME;
1466		1905
1467	if (timercnt)	1906	if (timercnt)
1468	{	1907	{
1469	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1908	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1470	if (block > to) block = to;	1909	if (waittime > to) waittime = to;
1471	}	1910	}
1472		1911
1473	#if EV_PERIODIC_ENABLE	1912	#if EV_PERIODIC_ENABLE
1474	if (periodiccnt)	1913	if (periodiccnt)
1475	{	1914	{
1476	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;
1477	if (block > to) block = to;	1916	if (waittime > to) waittime = to;
1478	}	1917	}
1479	#endif	1918	#endif
1480		1919
1481	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	}
1482	}	1933	}
1483		1934
1484	++loop_count;	1935	++loop_count;
1485	backend_poll (EV_A_ block);	1936	backend_poll (EV_A_ waittime);
1486		1937
1487	/* update ev_rt_now, do magic */	1938	/* update ev_rt_now, do magic */
1488	time_update (EV_A_ block);	1939	time_update (EV_A_ waittime + sleeptime);
1489	}	1940	}
1490		1941
1491	/* queue pending timers and reschedule them */	1942	/* queue pending timers and reschedule them */
1492	timers_reify (EV_A); /* relative timers called last */	1943	timers_reify (EV_A); /* relative timers called last */
1493	#if EV_PERIODIC_ENABLE	1944	#if EV_PERIODIC_ENABLE
…		…
1502	/* queue check watchers, to be executed first */	1953	/* queue check watchers, to be executed first */
1503	if (expect_false (checkcnt))	1954	if (expect_false (checkcnt))
1504	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1955	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1505		1956
1506	call_pending (EV_A);	1957	call_pending (EV_A);
1507
1508	}	1958	}
1509	while (expect_true (activecnt && !loop_done));	1959	while (expect_true (
		1960	activecnt
		1961	&& !loop_done
		1962	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1963	));
1510		1964
1511	if (loop_done == EVUNLOOP_ONE)	1965	if (loop_done == EVUNLOOP_ONE)
1512	loop_done = EVUNLOOP_CANCEL;	1966	loop_done = EVUNLOOP_CANCEL;
1513	}	1967	}
1514		1968
…		…
1603	if (expect_false (ev_is_active (w)))	2057	if (expect_false (ev_is_active (w)))
1604	return;	2058	return;
1605		2059
1606	assert (("ev_io_start called with negative fd", fd >= 0));	2060	assert (("ev_io_start called with negative fd", fd >= 0));
1607		2061
		2062	EV_FREQUENT_CHECK;
		2063
1608	ev_start (EV_A_ (W)w, 1);	2064	ev_start (EV_A_ (W)w, 1);
1609	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2065	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1610	wlist_add (&anfds[fd].head, (WL)w);	2066	wlist_add (&anfds[fd].head, (WL)w);
1611		2067
1612	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2068	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1613	w->events &= ~EV_IOFDSET;	2069	w->events &= ~EV_IOFDSET;
		2070
		2071	EV_FREQUENT_CHECK;
1614	}	2072	}
1615		2073
1616	void noinline	2074	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	2075	ev_io_stop (EV_P_ ev_io *w)
1618	{	2076	{
1619	clear_pending (EV_A_ (W)w);	2077	clear_pending (EV_A_ (W)w);
1620	if (expect_false (!ev_is_active (w)))	2078	if (expect_false (!ev_is_active (w)))
1621	return;	2079	return;
1622		2080
1623	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;
1624		2084
1625	wlist_del (&anfds[w->fd].head, (WL)w);	2085	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	2086	ev_stop (EV_A_ (W)w);
1627		2087
1628	fd_change (EV_A_ w->fd, 1);	2088	fd_change (EV_A_ w->fd, 1);
		2089
		2090	EV_FREQUENT_CHECK;
1629	}	2091	}
1630		2092
1631	void noinline	2093	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	2094	ev_timer_start (EV_P_ ev_timer *w)
1633	{	2095	{
1634	if (expect_false (ev_is_active (w)))	2096	if (expect_false (ev_is_active (w)))
1635	return;	2097	return;
1636		2098
1637	((WT)w)->at += mn_now;	2099	ev_at (w) += mn_now;
1638		2100
1639	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.));
1640		2102
		2103	EV_FREQUENT_CHECK;
		2104
		2105	++timercnt;
1641	ev_start (EV_A_ (W)w, ++timercnt);	2106	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1642	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2107	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1643	timers [timercnt - 1] = (WT)w;	2108	ANHE_w (timers [ev_active (w)]) = (WT)w;
1644	upheap (timers, timercnt - 1);	2109	ANHE_at_cache (timers [ev_active (w)]);
		2110	upheap (timers, ev_active (w));
1645		2111
		2112	EV_FREQUENT_CHECK;
		2113
1646	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	2114	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1647	}	2115	}
1648		2116
1649	void noinline	2117	void noinline
1650	ev_timer_stop (EV_P_ ev_timer *w)	2118	ev_timer_stop (EV_P_ ev_timer *w)
1651	{	2119	{
1652	clear_pending (EV_A_ (W)w);	2120	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	2121	if (expect_false (!ev_is_active (w)))
1654	return;	2122	return;
1655		2123
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));	2124	EV_FREQUENT_CHECK;
1657		2125
1658	{	2126	{
1659	int active = ((W)w)->active;	2127	int active = ev_active (w);
1660		2128
		2129	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2130
		2131	--timercnt;
		2132
1661	if (expect_true (--active < --timercnt))	2133	if (expect_true (active < timercnt + HEAP0))
1662	{	2134	{
1663	timers [active] = timers [timercnt];	2135	timers [active] = timers [timercnt + HEAP0];
1664	adjustheap (timers, timercnt, active);	2136	adjustheap (timers, timercnt, active);
1665	}	2137	}
1666	}	2138	}
1667		2139
1668	((WT)w)->at -= mn_now;	2140	EV_FREQUENT_CHECK;
		2141
		2142	ev_at (w) -= mn_now;
1669		2143
1670	ev_stop (EV_A_ (W)w);	2144	ev_stop (EV_A_ (W)w);
1671	}	2145	}
1672		2146
1673	void noinline	2147	void noinline
1674	ev_timer_again (EV_P_ ev_timer *w)	2148	ev_timer_again (EV_P_ ev_timer *w)
1675	{	2149	{
		2150	EV_FREQUENT_CHECK;
		2151
1676	if (ev_is_active (w))	2152	if (ev_is_active (w))
1677	{	2153	{
1678	if (w->repeat)	2154	if (w->repeat)
1679	{	2155	{
1680	((WT)w)->at = mn_now + w->repeat;	2156	ev_at (w) = mn_now + w->repeat;
		2157	ANHE_at_cache (timers [ev_active (w)]);
1681	adjustheap (timers, timercnt, ((W)w)->active - 1);	2158	adjustheap (timers, timercnt, ev_active (w));
1682	}	2159	}
1683	else	2160	else
1684	ev_timer_stop (EV_A_ w);	2161	ev_timer_stop (EV_A_ w);
1685	}	2162	}
1686	else if (w->repeat)	2163	else if (w->repeat)
1687	{	2164	{
1688	w->at = w->repeat;	2165	ev_at (w) = w->repeat;
1689	ev_timer_start (EV_A_ w);	2166	ev_timer_start (EV_A_ w);
1690	}	2167	}
		2168
		2169	EV_FREQUENT_CHECK;
1691	}	2170	}
1692		2171
1693	#if EV_PERIODIC_ENABLE	2172	#if EV_PERIODIC_ENABLE
1694	void noinline	2173	void noinline
1695	ev_periodic_start (EV_P_ ev_periodic *w)	2174	ev_periodic_start (EV_P_ ev_periodic *w)
1696	{	2175	{
1697	if (expect_false (ev_is_active (w)))	2176	if (expect_false (ev_is_active (w)))
1698	return;	2177	return;
1699		2178
1700	if (w->reschedule_cb)	2179	if (w->reschedule_cb)
1701	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2180	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1702	else if (w->interval)	2181	else if (w->interval)
1703	{	2182	{
1704	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.));
1705	/* 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 */
1706	((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;
1707	}	2186	}
1708	else	2187	else
1709	((WT)w)->at = w->offset;	2188	ev_at (w) = w->offset;
1710		2189
		2190	EV_FREQUENT_CHECK;
		2191
		2192	++periodiccnt;
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	2193	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1712	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2194	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1713	periodics [periodiccnt - 1] = (WT)w;	2195	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1714	upheap (periodics, periodiccnt - 1);	2196	ANHE_at_cache (periodics [ev_active (w)]);
		2197	upheap (periodics, ev_active (w));
1715		2198
		2199	EV_FREQUENT_CHECK;
		2200
1716	/*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));*/
1717	}	2202	}
1718		2203
1719	void noinline	2204	void noinline
1720	ev_periodic_stop (EV_P_ ev_periodic *w)	2205	ev_periodic_stop (EV_P_ ev_periodic *w)
1721	{	2206	{
1722	clear_pending (EV_A_ (W)w);	2207	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	2208	if (expect_false (!ev_is_active (w)))
1724	return;	2209	return;
1725		2210
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));	2211	EV_FREQUENT_CHECK;
1727		2212
1728	{	2213	{
1729	int active = ((W)w)->active;	2214	int active = ev_active (w);
1730		2215
		2216	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2217
		2218	--periodiccnt;
		2219
1731	if (expect_true (--active < --periodiccnt))	2220	if (expect_true (active < periodiccnt + HEAP0))
1732	{	2221	{
1733	periodics [active] = periodics [periodiccnt];	2222	periodics [active] = periodics [periodiccnt + HEAP0];
1734	adjustheap (periodics, periodiccnt, active);	2223	adjustheap (periodics, periodiccnt, active);
1735	}	2224	}
1736	}	2225	}
1737		2226
		2227	EV_FREQUENT_CHECK;
		2228
1738	ev_stop (EV_A_ (W)w);	2229	ev_stop (EV_A_ (W)w);
1739	}	2230	}
1740		2231
1741	void noinline	2232	void noinline
1742	ev_periodic_again (EV_P_ ev_periodic *w)	2233	ev_periodic_again (EV_P_ ev_periodic *w)
…		…
1759	#endif	2250	#endif
1760	if (expect_false (ev_is_active (w)))	2251	if (expect_false (ev_is_active (w)))
1761	return;	2252	return;
1762		2253
1763	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;
1764		2259
1765	{	2260	{
1766	#ifndef _WIN32	2261	#ifndef _WIN32
1767	sigset_t full, prev;	2262	sigset_t full, prev;
1768	sigfillset (&full);	2263	sigfillset (&full);
…		…
1780	wlist_add (&signals [w->signum - 1].head, (WL)w);	2275	wlist_add (&signals [w->signum - 1].head, (WL)w);
1781		2276
1782	if (!((WL)w)->next)	2277	if (!((WL)w)->next)
1783	{	2278	{
1784	#if _WIN32	2279	#if _WIN32
1785	signal (w->signum, sighandler);	2280	signal (w->signum, ev_sighandler);
1786	#else	2281	#else
1787	struct sigaction sa;	2282	struct sigaction sa;
1788	sa.sa_handler = sighandler;	2283	sa.sa_handler = ev_sighandler;
1789	sigfillset (&sa.sa_mask);	2284	sigfillset (&sa.sa_mask);
1790	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 */
1791	sigaction (w->signum, &sa, 0);	2286	sigaction (w->signum, &sa, 0);
1792	#endif	2287	#endif
1793	}	2288	}
		2289
		2290	EV_FREQUENT_CHECK;
1794	}	2291	}
1795		2292
1796	void noinline	2293	void noinline
1797	ev_signal_stop (EV_P_ ev_signal *w)	2294	ev_signal_stop (EV_P_ ev_signal *w)
1798	{	2295	{
1799	clear_pending (EV_A_ (W)w);	2296	clear_pending (EV_A_ (W)w);
1800	if (expect_false (!ev_is_active (w)))	2297	if (expect_false (!ev_is_active (w)))
1801	return;	2298	return;
1802		2299
		2300	EV_FREQUENT_CHECK;
		2301
1803	wlist_del (&signals [w->signum - 1].head, (WL)w);	2302	wlist_del (&signals [w->signum - 1].head, (WL)w);
1804	ev_stop (EV_A_ (W)w);	2303	ev_stop (EV_A_ (W)w);
1805		2304
1806	if (!signals [w->signum - 1].head)	2305	if (!signals [w->signum - 1].head)
1807	signal (w->signum, SIG_DFL);	2306	signal (w->signum, SIG_DFL);
		2307
		2308	EV_FREQUENT_CHECK;
1808	}	2309	}
1809		2310
1810	void	2311	void
1811	ev_child_start (EV_P_ ev_child *w)	2312	ev_child_start (EV_P_ ev_child *w)
1812	{	2313	{
…		…
1814	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));
1815	#endif	2316	#endif
1816	if (expect_false (ev_is_active (w)))	2317	if (expect_false (ev_is_active (w)))
1817	return;	2318	return;
1818		2319
		2320	EV_FREQUENT_CHECK;
		2321
1819	ev_start (EV_A_ (W)w, 1);	2322	ev_start (EV_A_ (W)w, 1);
1820	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;
1821	}	2326	}
1822		2327
1823	void	2328	void
1824	ev_child_stop (EV_P_ ev_child *w)	2329	ev_child_stop (EV_P_ ev_child *w)
1825	{	2330	{
1826	clear_pending (EV_A_ (W)w);	2331	clear_pending (EV_A_ (W)w);
1827	if (expect_false (!ev_is_active (w)))	2332	if (expect_false (!ev_is_active (w)))
1828	return;	2333	return;
1829		2334
		2335	EV_FREQUENT_CHECK;
		2336
1830	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2337	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1831	ev_stop (EV_A_ (W)w);	2338	ev_stop (EV_A_ (W)w);
		2339
		2340	EV_FREQUENT_CHECK;
1832	}	2341	}
1833		2342
1834	#if EV_STAT_ENABLE	2343	#if EV_STAT_ENABLE
1835		2344
1836	# ifdef _WIN32	2345	# ifdef _WIN32
…		…
1854	if (w->wd < 0)	2363	if (w->wd < 0)
1855	{	2364	{
1856	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 */
1857		2366
1858	/* 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 */
1859	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2370	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1860	{	2371	{
1861	char path [4096];	2372	char path [4096];
1862	strcpy (path, w->path);	2373	strcpy (path, w->path);
1863		2374
…		…
2062	else	2573	else
2063	#endif	2574	#endif
2064	ev_timer_start (EV_A_ &w->timer);	2575	ev_timer_start (EV_A_ &w->timer);
2065		2576
2066	ev_start (EV_A_ (W)w, 1);	2577	ev_start (EV_A_ (W)w, 1);
		2578
		2579	EV_FREQUENT_CHECK;
2067	}	2580	}
2068		2581
2069	void	2582	void
2070	ev_stat_stop (EV_P_ ev_stat *w)	2583	ev_stat_stop (EV_P_ ev_stat *w)
2071	{	2584	{
2072	clear_pending (EV_A_ (W)w);	2585	clear_pending (EV_A_ (W)w);
2073	if (expect_false (!ev_is_active (w)))	2586	if (expect_false (!ev_is_active (w)))
2074	return;	2587	return;
2075		2588
		2589	EV_FREQUENT_CHECK;
		2590
2076	#if EV_USE_INOTIFY	2591	#if EV_USE_INOTIFY
2077	infy_del (EV_A_ w);	2592	infy_del (EV_A_ w);
2078	#endif	2593	#endif
2079	ev_timer_stop (EV_A_ &w->timer);	2594	ev_timer_stop (EV_A_ &w->timer);
2080		2595
2081	ev_stop (EV_A_ (W)w);	2596	ev_stop (EV_A_ (W)w);
		2597
		2598	EV_FREQUENT_CHECK;
2082	}	2599	}
2083	#endif	2600	#endif
2084		2601
2085	#if EV_IDLE_ENABLE	2602	#if EV_IDLE_ENABLE
2086	void	2603	void
…		…
2088	{	2605	{
2089	if (expect_false (ev_is_active (w)))	2606	if (expect_false (ev_is_active (w)))
2090	return;	2607	return;
2091		2608
2092	pri_adjust (EV_A_ (W)w);	2609	pri_adjust (EV_A_ (W)w);
		2610
		2611	EV_FREQUENT_CHECK;
2093		2612
2094	{	2613	{
2095	int active = ++idlecnt [ABSPRI (w)];	2614	int active = ++idlecnt [ABSPRI (w)];
2096		2615
2097	++idleall;	2616	++idleall;
2098	ev_start (EV_A_ (W)w, active);	2617	ev_start (EV_A_ (W)w, active);
2099		2618
2100	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);
2101	idles [ABSPRI (w)][active - 1] = w;	2620	idles [ABSPRI (w)][active - 1] = w;
2102	}	2621	}
		2622
		2623	EV_FREQUENT_CHECK;
2103	}	2624	}
2104		2625
2105	void	2626	void
2106	ev_idle_stop (EV_P_ ev_idle *w)	2627	ev_idle_stop (EV_P_ ev_idle *w)
2107	{	2628	{
2108	clear_pending (EV_A_ (W)w);	2629	clear_pending (EV_A_ (W)w);
2109	if (expect_false (!ev_is_active (w)))	2630	if (expect_false (!ev_is_active (w)))
2110	return;	2631	return;
2111		2632
		2633	EV_FREQUENT_CHECK;
		2634
2112	{	2635	{
2113	int active = ((W)w)->active;	2636	int active = ev_active (w);
2114		2637
2115	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2638	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2116	((W)idles [ABSPRI (w)][active - 1])->active = active;	2639	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2117		2640
2118	ev_stop (EV_A_ (W)w);	2641	ev_stop (EV_A_ (W)w);
2119	--idleall;	2642	--idleall;
2120	}	2643	}
		2644
		2645	EV_FREQUENT_CHECK;
2121	}	2646	}
2122	#endif	2647	#endif
2123		2648
2124	void	2649	void
2125	ev_prepare_start (EV_P_ ev_prepare *w)	2650	ev_prepare_start (EV_P_ ev_prepare *w)
2126	{	2651	{
2127	if (expect_false (ev_is_active (w)))	2652	if (expect_false (ev_is_active (w)))
2128	return;	2653	return;
		2654
		2655	EV_FREQUENT_CHECK;
2129		2656
2130	ev_start (EV_A_ (W)w, ++preparecnt);	2657	ev_start (EV_A_ (W)w, ++preparecnt);
2131	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2658	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2132	prepares [preparecnt - 1] = w;	2659	prepares [preparecnt - 1] = w;
		2660
		2661	EV_FREQUENT_CHECK;
2133	}	2662	}
2134		2663
2135	void	2664	void
2136	ev_prepare_stop (EV_P_ ev_prepare *w)	2665	ev_prepare_stop (EV_P_ ev_prepare *w)
2137	{	2666	{
2138	clear_pending (EV_A_ (W)w);	2667	clear_pending (EV_A_ (W)w);
2139	if (expect_false (!ev_is_active (w)))	2668	if (expect_false (!ev_is_active (w)))
2140	return;	2669	return;
2141		2670
		2671	EV_FREQUENT_CHECK;
		2672
2142	{	2673	{
2143	int active = ((W)w)->active;	2674	int active = ev_active (w);
		2675
2144	prepares [active - 1] = prepares [--preparecnt];	2676	prepares [active - 1] = prepares [--preparecnt];
2145	((W)prepares [active - 1])->active = active;	2677	ev_active (prepares [active - 1]) = active;
2146	}	2678	}
2147		2679
2148	ev_stop (EV_A_ (W)w);	2680	ev_stop (EV_A_ (W)w);
		2681
		2682	EV_FREQUENT_CHECK;
2149	}	2683	}
2150		2684
2151	void	2685	void
2152	ev_check_start (EV_P_ ev_check *w)	2686	ev_check_start (EV_P_ ev_check *w)
2153	{	2687	{
2154	if (expect_false (ev_is_active (w)))	2688	if (expect_false (ev_is_active (w)))
2155	return;	2689	return;
		2690
		2691	EV_FREQUENT_CHECK;
2156		2692
2157	ev_start (EV_A_ (W)w, ++checkcnt);	2693	ev_start (EV_A_ (W)w, ++checkcnt);
2158	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2694	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2159	checks [checkcnt - 1] = w;	2695	checks [checkcnt - 1] = w;
		2696
		2697	EV_FREQUENT_CHECK;
2160	}	2698	}
2161		2699
2162	void	2700	void
2163	ev_check_stop (EV_P_ ev_check *w)	2701	ev_check_stop (EV_P_ ev_check *w)
2164	{	2702	{
2165	clear_pending (EV_A_ (W)w);	2703	clear_pending (EV_A_ (W)w);
2166	if (expect_false (!ev_is_active (w)))	2704	if (expect_false (!ev_is_active (w)))
2167	return;	2705	return;
2168		2706
		2707	EV_FREQUENT_CHECK;
		2708
2169	{	2709	{
2170	int active = ((W)w)->active;	2710	int active = ev_active (w);
		2711
2171	checks [active - 1] = checks [--checkcnt];	2712	checks [active - 1] = checks [--checkcnt];
2172	((W)checks [active - 1])->active = active;	2713	ev_active (checks [active - 1]) = active;
2173	}	2714	}
2174		2715
2175	ev_stop (EV_A_ (W)w);	2716	ev_stop (EV_A_ (W)w);
		2717
		2718	EV_FREQUENT_CHECK;
2176	}	2719	}
2177		2720
2178	#if EV_EMBED_ENABLE	2721	#if EV_EMBED_ENABLE
2179	void noinline	2722	void noinline
2180	ev_embed_sweep (EV_P_ ev_embed *w)	2723	ev_embed_sweep (EV_P_ ev_embed *w)
2181	{	2724	{
2182	ev_loop (w->loop, EVLOOP_NONBLOCK);	2725	ev_loop (w->other, EVLOOP_NONBLOCK);
2183	}	2726	}
2184		2727
2185	static void	2728	static void
2186	embed_cb (EV_P_ ev_io *io, int revents)	2729	embed_io_cb (EV_P_ ev_io *io, int revents)
2187	{	2730	{
2188	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2731	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2189		2732
2190	if (ev_cb (w))	2733	if (ev_cb (w))
2191	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2734	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2192	else	2735	else
2193	ev_embed_sweep (loop, w);	2736	ev_loop (w->other, EVLOOP_NONBLOCK);
2194	}	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
2195		2762
2196	void	2763	void
2197	ev_embed_start (EV_P_ ev_embed *w)	2764	ev_embed_start (EV_P_ ev_embed *w)
2198	{	2765	{
2199	if (expect_false (ev_is_active (w)))	2766	if (expect_false (ev_is_active (w)))
2200	return;	2767	return;
2201		2768
2202	{	2769	{
2203	struct ev_loop *loop = w->loop;	2770	struct ev_loop *loop = w->other;
2204	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 ()));
2205	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2772	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2206	}	2773	}
		2774
		2775	EV_FREQUENT_CHECK;
2207		2776
2208	ev_set_priority (&w->io, ev_priority (w));	2777	ev_set_priority (&w->io, ev_priority (w));
2209	ev_io_start (EV_A_ &w->io);	2778	ev_io_start (EV_A_ &w->io);
2210		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
2211	ev_start (EV_A_ (W)w, 1);	2786	ev_start (EV_A_ (W)w, 1);
		2787
		2788	EV_FREQUENT_CHECK;
2212	}	2789	}
2213		2790
2214	void	2791	void
2215	ev_embed_stop (EV_P_ ev_embed *w)	2792	ev_embed_stop (EV_P_ ev_embed *w)
2216	{	2793	{
2217	clear_pending (EV_A_ (W)w);	2794	clear_pending (EV_A_ (W)w);
2218	if (expect_false (!ev_is_active (w)))	2795	if (expect_false (!ev_is_active (w)))
2219	return;	2796	return;
2220		2797
		2798	EV_FREQUENT_CHECK;
		2799
2221	ev_io_stop (EV_A_ &w->io);	2800	ev_io_stop (EV_A_ &w->io);
		2801	ev_prepare_stop (EV_A_ &w->prepare);
2222		2802
2223	ev_stop (EV_A_ (W)w);	2803	ev_stop (EV_A_ (W)w);
		2804
		2805	EV_FREQUENT_CHECK;
2224	}	2806	}
2225	#endif	2807	#endif
2226		2808
2227	#if EV_FORK_ENABLE	2809	#if EV_FORK_ENABLE
2228	void	2810	void
2229	ev_fork_start (EV_P_ ev_fork *w)	2811	ev_fork_start (EV_P_ ev_fork *w)
2230	{	2812	{
2231	if (expect_false (ev_is_active (w)))	2813	if (expect_false (ev_is_active (w)))
2232	return;	2814	return;
		2815
		2816	EV_FREQUENT_CHECK;
2233		2817
2234	ev_start (EV_A_ (W)w, ++forkcnt);	2818	ev_start (EV_A_ (W)w, ++forkcnt);
2235	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2819	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2236	forks [forkcnt - 1] = w;	2820	forks [forkcnt - 1] = w;
		2821
		2822	EV_FREQUENT_CHECK;
2237	}	2823	}
2238		2824
2239	void	2825	void
2240	ev_fork_stop (EV_P_ ev_fork *w)	2826	ev_fork_stop (EV_P_ ev_fork *w)
2241	{	2827	{
2242	clear_pending (EV_A_ (W)w);	2828	clear_pending (EV_A_ (W)w);
2243	if (expect_false (!ev_is_active (w)))	2829	if (expect_false (!ev_is_active (w)))
2244	return;	2830	return;
2245		2831
		2832	EV_FREQUENT_CHECK;
		2833
2246	{	2834	{
2247	int active = ((W)w)->active;	2835	int active = ev_active (w);
		2836
2248	forks [active - 1] = forks [--forkcnt];	2837	forks [active - 1] = forks [--forkcnt];
2249	((W)forks [active - 1])->active = active;	2838	ev_active (forks [active - 1]) = active;
2250	}	2839	}
2251		2840
2252	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);
2253	}	2891	}
2254	#endif	2892	#endif
2255		2893
2256	/*****************************************************************************/	2894	/*****************************************************************************/
2257		2895
…		…
2315	ev_timer_set (&once->to, timeout, 0.);	2953	ev_timer_set (&once->to, timeout, 0.);
2316	ev_timer_start (EV_A_ &once->to);	2954	ev_timer_start (EV_A_ &once->to);
2317	}	2955	}
2318	}	2956	}
2319		2957
		2958	#if EV_MULTIPLICITY
		2959	#include "ev_wrap.h"
		2960	#endif
		2961
2320	#ifdef __cplusplus	2962	#ifdef __cplusplus
2321	}	2963	}
2322	#endif	2964	#endif
2323		2965

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