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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 1.251 by root, Thu May 22 03:42:34 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	#if 0 /* debugging */
		241	# define EV_VERIFY 3
		242	# define EV_USE_4HEAP 1
		243	# define EV_HEAP_CACHE_AT 1
		244	#endif
		245
		246	#ifndef EV_VERIFY
		247	# define EV_VERIFY !EV_MINIMAL
		248	#endif
		249
		250	#ifndef EV_USE_4HEAP
		251	# define EV_USE_4HEAP !EV_MINIMAL
		252	#endif
		253
		254	#ifndef EV_HEAP_CACHE_AT
		255	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		256	#endif
		257
		258	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		259
197	#ifndef CLOCK_MONOTONIC	260	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	261	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	262	# define EV_USE_MONOTONIC 0
200	#endif	263	#endif
…		…
207	#if !EV_STAT_ENABLE	270	#if !EV_STAT_ENABLE
208	# undef EV_USE_INOTIFY	271	# undef EV_USE_INOTIFY
209	# define EV_USE_INOTIFY 0	272	# define EV_USE_INOTIFY 0
210	#endif	273	#endif
211		274
		275	#if !EV_USE_NANOSLEEP
		276	# ifndef _WIN32
		277	# include <sys/select.h>
		278	# endif
		279	#endif
		280
212	#if EV_USE_INOTIFY	281	#if EV_USE_INOTIFY
213	# include <sys/inotify.h>	282	# include <sys/inotify.h>
214	#endif	283	#endif
215		284
216	#if EV_SELECT_IS_WINSOCKET	285	#if EV_SELECT_IS_WINSOCKET
217	# include <winsock.h>	286	# include <winsock.h>
218	#endif	287	#endif
219		288
		289	#if EV_USE_EVENTFD
		290	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		291	# include <stdint.h>
		292	# ifdef __cplusplus
		293	extern "C" {
		294	# endif
		295	int eventfd (unsigned int initval, int flags);
		296	# ifdef __cplusplus
		297	}
		298	# endif
		299	#endif
		300
220	/**/	301	/**/
		302
		303	#if EV_VERIFY >= 3
		304	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		305	#else
		306	# define EV_FREQUENT_CHECK do { } while (0)
		307	#endif
221		308
222	/*	309	/*
223	* This is used to avoid floating point rounding problems.	310	* This is used to avoid floating point rounding problems.
224	* It is added to ev_rt_now when scheduling periodics	311	* It is added to ev_rt_now when scheduling periodics
225	* to ensure progress, time-wise, even when rounding	312	* to ensure progress, time-wise, even when rounding
…		…
237	# define expect(expr,value) __builtin_expect ((expr),(value))	324	# define expect(expr,value) __builtin_expect ((expr),(value))
238	# define noinline __attribute__ ((noinline))	325	# define noinline __attribute__ ((noinline))
239	#else	326	#else
240	# define expect(expr,value) (expr)	327	# define expect(expr,value) (expr)
241	# define noinline	328	# define noinline
242	# if __STDC_VERSION__ < 199901L	329	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
243	# define inline	330	# define inline
244	# endif	331	# endif
245	#endif	332	#endif
246		333
247	#define expect_false(expr) expect ((expr) != 0, 0)	334	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
262		349
263	typedef ev_watcher *W;	350	typedef ev_watcher *W;
264	typedef ev_watcher_list *WL;	351	typedef ev_watcher_list *WL;
265	typedef ev_watcher_time *WT;	352	typedef ev_watcher_time *WT;
266		353
		354	#define ev_active(w) ((W)(w))->active
		355	#define ev_at(w) ((WT)(w))->at
		356
		357	#if EV_USE_MONOTONIC
		358	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		359	/* giving it a reasonably high chance of working on typical architetcures */
267	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	360	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		361	#endif
268		362
269	#ifdef _WIN32	363	#ifdef _WIN32
270	# include "ev_win32.c"	364	# include "ev_win32.c"
271	#endif	365	#endif
272		366
…		…
293	perror (msg);	387	perror (msg);
294	abort ();	388	abort ();
295	}	389	}
296	}	390	}
297		391
		392	static void *
		393	ev_realloc_emul (void *ptr, long size)
		394	{
		395	/* some systems, notably openbsd and darwin, fail to properly
		396	* implement realloc (x, 0) (as required by both ansi c-98 and
		397	* the single unix specification, so work around them here.
		398	*/
		399
		400	if (size)
		401	return realloc (ptr, size);
		402
		403	free (ptr);
		404	return 0;
		405	}
		406
298	static void *(*alloc)(void *ptr, long size);	407	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
299		408
300	void	409	void
301	ev_set_allocator (void *(*cb)(void *ptr, long size))	410	ev_set_allocator (void *(*cb)(void *ptr, long size))
302	{	411	{
303	alloc = cb;	412	alloc = cb;
304	}	413	}
305		414
306	inline_speed void *	415	inline_speed void *
307	ev_realloc (void *ptr, long size)	416	ev_realloc (void *ptr, long size)
308	{	417	{
309	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	418	ptr = alloc (ptr, size);
310		419
311	if (!ptr && size)	420	if (!ptr && size)
312	{	421	{
313	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	422	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314	abort ();	423	abort ();
…		…
337	W w;	446	W w;
338	int events;	447	int events;
339	} ANPENDING;	448	} ANPENDING;
340		449
341	#if EV_USE_INOTIFY	450	#if EV_USE_INOTIFY
		451	/* hash table entry per inotify-id */
342	typedef struct	452	typedef struct
343	{	453	{
344	WL head;	454	WL head;
345	} ANFS;	455	} ANFS;
		456	#endif
		457
		458	/* Heap Entry */
		459	#if EV_HEAP_CACHE_AT
		460	typedef struct {
		461	ev_tstamp at;
		462	WT w;
		463	} ANHE;
		464
		465	#define ANHE_w(he) (he).w /* access watcher, read-write */
		466	#define ANHE_at(he) (he).at /* access cached at, read-only */
		467	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		468	#else
		469	typedef WT ANHE;
		470
		471	#define ANHE_w(he) (he)
		472	#define ANHE_at(he) (he)->at
		473	#define ANHE_at_cache(he)
346	#endif	474	#endif
347		475
348	#if EV_MULTIPLICITY	476	#if EV_MULTIPLICITY
349		477
350	struct ev_loop	478	struct ev_loop
…		…
408	{	536	{
409	return ev_rt_now;	537	return ev_rt_now;
410	}	538	}
411	#endif	539	#endif
412		540
		541	void
		542	ev_sleep (ev_tstamp delay)
		543	{
		544	if (delay > 0.)
		545	{
		546	#if EV_USE_NANOSLEEP
		547	struct timespec ts;
		548
		549	ts.tv_sec = (time_t)delay;
		550	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		551
		552	nanosleep (&ts, 0);
		553	#elif defined(_WIN32)
		554	Sleep ((unsigned long)(delay * 1e3));
		555	#else
		556	struct timeval tv;
		557
		558	tv.tv_sec = (time_t)delay;
		559	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		560
		561	select (0, 0, 0, 0, &tv);
		562	#endif
		563	}
		564	}
		565
		566	/*****************************************************************************/
		567
		568	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
		569
413	int inline_size	570	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	571	array_nextsize (int elem, int cur, int cnt)
415	{	572	{
416	int ncur = cur + 1;	573	int ncur = cur + 1;
417		574
418	do	575	do
419	ncur <<= 1;	576	ncur <<= 1;
420	while (cnt > ncur);	577	while (cnt > ncur);
421		578
422	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */	579	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
423	if (elem * ncur > 4096)	580	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
424	{	581	{
425	ncur *= elem;	582	ncur *= elem;
426	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;	583	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
427	ncur = ncur - sizeof (void *) * 4;	584	ncur = ncur - sizeof (void *) * 4;
428	ncur /= elem;	585	ncur /= elem;
429	}	586	}
430		587
431	return ncur;	588	return ncur;
…		…
543		700
544	#if EV_SELECT_IS_WINSOCKET	701	#if EV_SELECT_IS_WINSOCKET
545	if (events)	702	if (events)
546	{	703	{
547	unsigned long argp;	704	unsigned long argp;
		705	#ifdef EV_FD_TO_WIN32_HANDLE
		706	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		707	#else
548	anfd->handle = _get_osfhandle (fd);	708	anfd->handle = _get_osfhandle (fd);
		709	#endif
549	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	710	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550	}	711	}
551	#endif	712	#endif
552		713
553	{	714	{
…		…
641	}	802	}
642	}	803	}
643		804
644	/*****************************************************************************/	805	/*****************************************************************************/
645		806
		807	/*
		808	* the heap functions want a real array index. array index 0 uis guaranteed to not
		809	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		810	* the branching factor of the d-tree.
		811	*/
		812
		813	/*
		814	* at the moment we allow libev the luxury of two heaps,
		815	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
		816	* which is more cache-efficient.
		817	* the difference is about 5% with 50000+ watchers.
		818	*/
		819	#if EV_USE_4HEAP
		820
		821	#define DHEAP 4
		822	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		823	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		824	#define UPHEAP_DONE(p,k) ((p) == (k))
		825
		826	/* away from the root */
646	void inline_speed	827	void inline_speed
647	upheap (WT *heap, int k)	828	downheap (ANHE *heap, int N, int k)
648	{	829	{
649	WT w = heap [k];	830	ANHE he = heap [k];
		831	ANHE *E = heap + N + HEAP0;
650		832
651	while (k)	833	for (;;)
652	{	834	{
653	int p = (k - 1) >> 1;	835	ev_tstamp minat;
		836	ANHE *minpos;
		837	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
654		838
655	if (heap [p]->at <= w->at)	839	/* find minimum child */
		840	if (expect_true (pos + DHEAP - 1 < E))
		841	{
		842	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		843	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		844	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		845	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		846	}
		847	else if (pos < E)
		848	{
		849	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		850	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		851	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		852	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		853	}
		854	else
656	break;	855	break;
657		856
		857	if (ANHE_at (he) <= minat)
		858	break;
		859
		860	heap [k] = *minpos;
		861	ev_active (ANHE_w (*minpos)) = k;
		862
		863	k = minpos - heap;
		864	}
		865
		866	heap [k] = he;
		867	ev_active (ANHE_w (he)) = k;
		868	}
		869
		870	#else /* 4HEAP */
		871
		872	#define HEAP0 1
		873	#define HPARENT(k) ((k) >> 1)
		874	#define UPHEAP_DONE(p,k) (!(p))
		875
		876	/* away from the root */
		877	void inline_speed
		878	downheap (ANHE *heap, int N, int k)
		879	{
		880	ANHE he = heap [k];
		881
		882	for (;;)
		883	{
		884	int c = k << 1;
		885
		886	if (c > N + HEAP0 - 1)
		887	break;
		888
		889	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
		890	? 1 : 0;
		891
		892	if (ANHE_at (he) <= ANHE_at (heap [c]))
		893	break;
		894
		895	heap [k] = heap [c];
		896	ev_active (ANHE_w (heap [k])) = k;
		897
		898	k = c;
		899	}
		900
		901	heap [k] = he;
		902	ev_active (ANHE_w (he)) = k;
		903	}
		904	#endif
		905
		906	/* towards the root */
		907	void inline_speed
		908	upheap (ANHE *heap, int k)
		909	{
		910	ANHE he = heap [k];
		911
		912	for (;;)
		913	{
		914	int p = HPARENT (k);
		915
		916	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		917	break;
		918
658	heap [k] = heap [p];	919	heap [k] = heap [p];
659	((W)heap [k])->active = k + 1;	920	ev_active (ANHE_w (heap [k])) = k;
660	k = p;	921	k = p;
661	}	922	}
662		923
663	heap [k] = w;	924	heap [k] = he;
664	((W)heap [k])->active = k + 1;	925	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	}	926	}
694		927
695	void inline_size	928	void inline_size
696	adjustheap (WT *heap, int N, int k)	929	adjustheap (ANHE *heap, int N, int k)
697	{	930	{
		931	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
698	upheap (heap, k);	932	upheap (heap, k);
		933	else
699	downheap (heap, N, k);	934	downheap (heap, N, k);
		935	}
		936
		937	/* rebuild the heap: this function is used only once and executed rarely */
		938	void inline_size
		939	reheap (ANHE *heap, int N)
		940	{
		941	int i;
		942
		943	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		944	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		945	for (i = 0; i < N; ++i)
		946	upheap (heap, i + HEAP0);
700	}	947	}
701		948
702	/*****************************************************************************/	949	/*****************************************************************************/
703		950
704	typedef struct	951	typedef struct
705	{	952	{
706	WL head;	953	WL head;
707	sig_atomic_t volatile gotsig;	954	EV_ATOMIC_T gotsig;
708	} ANSIG;	955	} ANSIG;
709		956
710	static ANSIG *signals;	957	static ANSIG *signals;
711	static int signalmax;	958	static int signalmax;
712		959
713	static int sigpipe [2];	960	static EV_ATOMIC_T gotsig;
714	static sig_atomic_t volatile gotsig;
715	static ev_io sigev;
716		961
717	void inline_size	962	void inline_size
718	signals_init (ANSIG *base, int count)	963	signals_init (ANSIG *base, int count)
719	{	964	{
720	while (count--)	965	while (count--)
…		…
724		969
725	++base;	970	++base;
726	}	971	}
727	}	972	}
728		973
729	static void	974	/*****************************************************************************/
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		975
780	void inline_speed	976	void inline_speed
781	fd_intern (int fd)	977	fd_intern (int fd)
782	{	978	{
783	#ifdef _WIN32	979	#ifdef _WIN32
…		…
788	fcntl (fd, F_SETFL, O_NONBLOCK);	984	fcntl (fd, F_SETFL, O_NONBLOCK);
789	#endif	985	#endif
790	}	986	}
791		987
792	static void noinline	988	static void noinline
793	siginit (EV_P)	989	evpipe_init (EV_P)
794	{	990	{
		991	if (!ev_is_active (&pipeev))
		992	{
		993	#if EV_USE_EVENTFD
		994	if ((evfd = eventfd (0, 0)) >= 0)
		995	{
		996	evpipe [0] = -1;
		997	fd_intern (evfd);
		998	ev_io_set (&pipeev, evfd, EV_READ);
		999	}
		1000	else
		1001	#endif
		1002	{
		1003	while (pipe (evpipe))
		1004	syserr ("(libev) error creating signal/async pipe");
		1005
795	fd_intern (sigpipe [0]);	1006	fd_intern (evpipe [0]);
796	fd_intern (sigpipe [1]);	1007	fd_intern (evpipe [1]);
		1008	ev_io_set (&pipeev, evpipe [0], EV_READ);
		1009	}
797		1010
798	ev_io_set (&sigev, sigpipe [0], EV_READ);
799	ev_io_start (EV_A_ &sigev);	1011	ev_io_start (EV_A_ &pipeev);
800	ev_unref (EV_A); /* child watcher should not keep loop alive */	1012	ev_unref (EV_A); /* watcher should not keep loop alive */
		1013	}
		1014	}
		1015
		1016	void inline_size
		1017	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1018	{
		1019	if (!*flag)
		1020	{
		1021	int old_errno = errno; /* save errno because write might clobber it */
		1022
		1023	*flag = 1;
		1024
		1025	#if EV_USE_EVENTFD
		1026	if (evfd >= 0)
		1027	{
		1028	uint64_t counter = 1;
		1029	write (evfd, &counter, sizeof (uint64_t));
		1030	}
		1031	else
		1032	#endif
		1033	write (evpipe [1], &old_errno, 1);
		1034
		1035	errno = old_errno;
		1036	}
		1037	}
		1038
		1039	static void
		1040	pipecb (EV_P_ ev_io *iow, int revents)
		1041	{
		1042	#if EV_USE_EVENTFD
		1043	if (evfd >= 0)
		1044	{
		1045	uint64_t counter;
		1046	read (evfd, &counter, sizeof (uint64_t));
		1047	}
		1048	else
		1049	#endif
		1050	{
		1051	char dummy;
		1052	read (evpipe [0], &dummy, 1);
		1053	}
		1054
		1055	if (gotsig && ev_is_default_loop (EV_A))
		1056	{
		1057	int signum;
		1058	gotsig = 0;
		1059
		1060	for (signum = signalmax; signum--; )
		1061	if (signals [signum].gotsig)
		1062	ev_feed_signal_event (EV_A_ signum + 1);
		1063	}
		1064
		1065	#if EV_ASYNC_ENABLE
		1066	if (gotasync)
		1067	{
		1068	int i;
		1069	gotasync = 0;
		1070
		1071	for (i = asynccnt; i--; )
		1072	if (asyncs [i]->sent)
		1073	{
		1074	asyncs [i]->sent = 0;
		1075	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		1076	}
		1077	}
		1078	#endif
801	}	1079	}
802		1080
803	/*****************************************************************************/	1081	/*****************************************************************************/
804		1082
		1083	static void
		1084	ev_sighandler (int signum)
		1085	{
		1086	#if EV_MULTIPLICITY
		1087	struct ev_loop *loop = &default_loop_struct;
		1088	#endif
		1089
		1090	#if _WIN32
		1091	signal (signum, ev_sighandler);
		1092	#endif
		1093
		1094	signals [signum - 1].gotsig = 1;
		1095	evpipe_write (EV_A_ &gotsig);
		1096	}
		1097
		1098	void noinline
		1099	ev_feed_signal_event (EV_P_ int signum)
		1100	{
		1101	WL w;
		1102
		1103	#if EV_MULTIPLICITY
		1104	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		1105	#endif
		1106
		1107	--signum;
		1108
		1109	if (signum < 0 || signum >= signalmax)
		1110	return;
		1111
		1112	signals [signum].gotsig = 0;
		1113
		1114	for (w = signals [signum].head; w; w = w->next)
		1115	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		1116	}
		1117
		1118	/*****************************************************************************/
		1119
805	static WL childs [EV_PID_HASHSIZE];	1120	static WL childs [EV_PID_HASHSIZE];
806		1121
807	#ifndef _WIN32	1122	#ifndef _WIN32
808		1123
809	static ev_signal childev;	1124	static ev_signal childev;
810		1125
		1126	#ifndef WIFCONTINUED
		1127	# define WIFCONTINUED(status) 0
		1128	#endif
		1129
811	void inline_speed	1130	void inline_speed
812	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1131	child_reap (EV_P_ int chain, int pid, int status)
813	{	1132	{
814	ev_child *w;	1133	ev_child *w;
		1134	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
815		1135
816	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1136	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1137	{
817	if (w->pid == pid || !w->pid)	1138	if ((w->pid == pid || !w->pid)
		1139	&& (!traced || (w->flags & 1)))
818	{	1140	{
819	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	1141	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;	1142	w->rpid = pid;
821	w->rstatus = status;	1143	w->rstatus = status;
822	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1144	ev_feed_event (EV_A_ (W)w, EV_CHILD);
823	}	1145	}
		1146	}
824	}	1147	}
825		1148
826	#ifndef WCONTINUED	1149	#ifndef WCONTINUED
827	# define WCONTINUED 0	1150	# define WCONTINUED 0
828	#endif	1151	#endif
…		…
837	if (!WCONTINUED	1160	if (!WCONTINUED
838	|| errno != EINVAL	1161	|| errno != EINVAL
839	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1162	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840	return;	1163	return;
841		1164
842	/* make sure we are called again until all childs have been reaped */	1165	/* 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 */	1166	/* 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);	1167	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
845		1168
846	child_reap (EV_A_ sw, pid, pid, status);	1169	child_reap (EV_A_ pid, pid, status);
847	if (EV_PID_HASHSIZE > 1)	1170	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 */	1171	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
849	}	1172	}
850		1173
851	#endif	1174	#endif
852		1175
853	/*****************************************************************************/	1176	/*****************************************************************************/
…		…
925	}	1248	}
926		1249
927	unsigned int	1250	unsigned int
928	ev_embeddable_backends (void)	1251	ev_embeddable_backends (void)
929	{	1252	{
930	return EVBACKEND_EPOLL	1253	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
931	| EVBACKEND_KQUEUE	1254
932	| EVBACKEND_PORT;	1255	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1256	/* please fix it and tell me how to detect the fix */
		1257	flags &= ~EVBACKEND_EPOLL;
		1258
		1259	return flags;
933	}	1260	}
934		1261
935	unsigned int	1262	unsigned int
936	ev_backend (EV_P)	1263	ev_backend (EV_P)
937	{	1264	{
…		…
940		1267
941	unsigned int	1268	unsigned int
942	ev_loop_count (EV_P)	1269	ev_loop_count (EV_P)
943	{	1270	{
944	return loop_count;	1271	return loop_count;
		1272	}
		1273
		1274	void
		1275	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1276	{
		1277	io_blocktime = interval;
		1278	}
		1279
		1280	void
		1281	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1282	{
		1283	timeout_blocktime = interval;
945	}	1284	}
946		1285
947	static void noinline	1286	static void noinline
948	loop_init (EV_P_ unsigned int flags)	1287	loop_init (EV_P_ unsigned int flags)
949	{	1288	{
…		…
955	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1294	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
956	have_monotonic = 1;	1295	have_monotonic = 1;
957	}	1296	}
958	#endif	1297	#endif
959		1298
960	ev_rt_now = ev_time ();	1299	ev_rt_now = ev_time ();
961	mn_now = get_clock ();	1300	mn_now = get_clock ();
962	now_floor = mn_now;	1301	now_floor = mn_now;
963	rtmn_diff = ev_rt_now - mn_now;	1302	rtmn_diff = ev_rt_now - mn_now;
		1303
		1304	io_blocktime = 0.;
		1305	timeout_blocktime = 0.;
		1306	backend = 0;
		1307	backend_fd = -1;
		1308	gotasync = 0;
		1309	#if EV_USE_INOTIFY
		1310	fs_fd = -2;
		1311	#endif
964		1312
965	/* pid check not overridable via env */	1313	/* pid check not overridable via env */
966	#ifndef _WIN32	1314	#ifndef _WIN32
967	if (flags & EVFLAG_FORKCHECK)	1315	if (flags & EVFLAG_FORKCHECK)
968	curpid = getpid ();	1316	curpid = getpid ();
…		…
971	if (!(flags & EVFLAG_NOENV)	1319	if (!(flags & EVFLAG_NOENV)
972	&& !enable_secure ()	1320	&& !enable_secure ()
973	&& getenv ("LIBEV_FLAGS"))	1321	&& getenv ("LIBEV_FLAGS"))
974	flags = atoi (getenv ("LIBEV_FLAGS"));	1322	flags = atoi (getenv ("LIBEV_FLAGS"));
975		1323
976	if (!(flags & 0x0000ffffUL))	1324	if (!(flags & 0x0000ffffU))
977	flags |= ev_recommended_backends ();	1325	flags |= ev_recommended_backends ();
978
979	backend = 0;
980	backend_fd = -1;
981	#if EV_USE_INOTIFY
982	fs_fd = -2;
983	#endif
984		1326
985	#if EV_USE_PORT	1327	#if EV_USE_PORT
986	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1328	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987	#endif	1329	#endif
988	#if EV_USE_KQUEUE	1330	#if EV_USE_KQUEUE
…		…
996	#endif	1338	#endif
997	#if EV_USE_SELECT	1339	#if EV_USE_SELECT
998	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1340	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
999	#endif	1341	#endif
1000		1342
1001	ev_init (&sigev, sigcb);	1343	ev_init (&pipeev, pipecb);
1002	ev_set_priority (&sigev, EV_MAXPRI);	1344	ev_set_priority (&pipeev, EV_MAXPRI);
1003	}	1345	}
1004	}	1346	}
1005		1347
1006	static void noinline	1348	static void noinline
1007	loop_destroy (EV_P)	1349	loop_destroy (EV_P)
1008	{	1350	{
1009	int i;	1351	int i;
		1352
		1353	if (ev_is_active (&pipeev))
		1354	{
		1355	ev_ref (EV_A); /* signal watcher */
		1356	ev_io_stop (EV_A_ &pipeev);
		1357
		1358	#if EV_USE_EVENTFD
		1359	if (evfd >= 0)
		1360	close (evfd);
		1361	#endif
		1362
		1363	if (evpipe [0] >= 0)
		1364	{
		1365	close (evpipe [0]);
		1366	close (evpipe [1]);
		1367	}
		1368	}
1010		1369
1011	#if EV_USE_INOTIFY	1370	#if EV_USE_INOTIFY
1012	if (fs_fd >= 0)	1371	if (fs_fd >= 0)
1013	close (fs_fd);	1372	close (fs_fd);
1014	#endif	1373	#endif
…		…
1037	array_free (pending, [i]);	1396	array_free (pending, [i]);
1038	#if EV_IDLE_ENABLE	1397	#if EV_IDLE_ENABLE
1039	array_free (idle, [i]);	1398	array_free (idle, [i]);
1040	#endif	1399	#endif
1041	}	1400	}
		1401
		1402	ev_free (anfds); anfdmax = 0;
1042		1403
1043	/* have to use the microsoft-never-gets-it-right macro */	1404	/* have to use the microsoft-never-gets-it-right macro */
1044	array_free (fdchange, EMPTY);	1405	array_free (fdchange, EMPTY);
1045	array_free (timer, EMPTY);	1406	array_free (timer, EMPTY);
1046	#if EV_PERIODIC_ENABLE	1407	#if EV_PERIODIC_ENABLE
1047	array_free (periodic, EMPTY);	1408	array_free (periodic, EMPTY);
1048	#endif	1409	#endif
		1410	#if EV_FORK_ENABLE
		1411	array_free (fork, EMPTY);
		1412	#endif
1049	array_free (prepare, EMPTY);	1413	array_free (prepare, EMPTY);
1050	array_free (check, EMPTY);	1414	array_free (check, EMPTY);
		1415	#if EV_ASYNC_ENABLE
		1416	array_free (async, EMPTY);
		1417	#endif
1051		1418
1052	backend = 0;	1419	backend = 0;
1053	}	1420	}
1054		1421
		1422	#if EV_USE_INOTIFY
1055	void inline_size infy_fork (EV_P);	1423	void inline_size infy_fork (EV_P);
		1424	#endif
1056		1425
1057	void inline_size	1426	void inline_size
1058	loop_fork (EV_P)	1427	loop_fork (EV_P)
1059	{	1428	{
1060	#if EV_USE_PORT	1429	#if EV_USE_PORT
…		…
1068	#endif	1437	#endif
1069	#if EV_USE_INOTIFY	1438	#if EV_USE_INOTIFY
1070	infy_fork (EV_A);	1439	infy_fork (EV_A);
1071	#endif	1440	#endif
1072		1441
1073	if (ev_is_active (&sigev))	1442	if (ev_is_active (&pipeev))
1074	{	1443	{
1075	/* default loop */	1444	/* this "locks" the handlers against writing to the pipe */
		1445	/* while we modify the fd vars */
		1446	gotsig = 1;
		1447	#if EV_ASYNC_ENABLE
		1448	gotasync = 1;
		1449	#endif
1076		1450
1077	ev_ref (EV_A);	1451	ev_ref (EV_A);
1078	ev_io_stop (EV_A_ &sigev);	1452	ev_io_stop (EV_A_ &pipeev);
		1453
		1454	#if EV_USE_EVENTFD
		1455	if (evfd >= 0)
		1456	close (evfd);
		1457	#endif
		1458
		1459	if (evpipe [0] >= 0)
		1460	{
1079	close (sigpipe [0]);	1461	close (evpipe [0]);
1080	close (sigpipe [1]);	1462	close (evpipe [1]);
		1463	}
1081		1464
1082	while (pipe (sigpipe))
1083	syserr ("(libev) error creating pipe");
1084
1085	siginit (EV_A);	1465	evpipe_init (EV_A);
		1466	/* now iterate over everything, in case we missed something */
		1467	pipecb (EV_A_ &pipeev, EV_READ);
1086	}	1468	}
1087		1469
1088	postfork = 0;	1470	postfork = 0;
1089	}	1471	}
1090		1472
1091	#if EV_MULTIPLICITY	1473	#if EV_MULTIPLICITY
		1474
1092	struct ev_loop *	1475	struct ev_loop *
1093	ev_loop_new (unsigned int flags)	1476	ev_loop_new (unsigned int flags)
1094	{	1477	{
1095	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1478	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1096		1479
…		…
1112	}	1495	}
1113		1496
1114	void	1497	void
1115	ev_loop_fork (EV_P)	1498	ev_loop_fork (EV_P)
1116	{	1499	{
1117	postfork = 1;	1500	postfork = 1; /* must be in line with ev_default_fork */
1118	}	1501	}
1119		1502
		1503	#if EV_VERIFY
		1504	void noinline
		1505	verify_watcher (EV_P_ W w)
		1506	{
		1507	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1508
		1509	if (w->pending)
		1510	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1511	}
		1512
		1513	static void noinline
		1514	verify_heap (EV_P_ ANHE *heap, int N)
		1515	{
		1516	int i;
		1517
		1518	for (i = HEAP0; i < N + HEAP0; ++i)
		1519	{
		1520	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1521	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1522	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1523
		1524	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1525	}
		1526	}
		1527
		1528	static void noinline
		1529	array_verify (EV_P_ W *ws, int cnt)
		1530	{
		1531	while (cnt--)
		1532	{
		1533	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1534	verify_watcher (EV_A_ ws [cnt]);
		1535	}
		1536	}
		1537	#endif
		1538
		1539	void
		1540	ev_loop_verify (EV_P)
		1541	{
		1542	#if EV_VERIFY
		1543	int i;
		1544	WL w;
		1545
		1546	assert (activecnt >= -1);
		1547
		1548	assert (fdchangemax >= fdchangecnt);
		1549	for (i = 0; i < fdchangecnt; ++i)
		1550	assert (("negative fd in fdchanges", fdchanges [i] >= 0));
		1551
		1552	assert (anfdmax >= 0);
		1553	for (i = 0; i < anfdmax; ++i)
		1554	for (w = anfds [i].head; w; w = w->next)
		1555	{
		1556	verify_watcher (EV_A_ (W)w);
		1557	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
		1558	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1559	}
		1560
		1561	assert (timermax >= timercnt);
		1562	verify_heap (EV_A_ timers, timercnt);
		1563
		1564	#if EV_PERIODIC_ENABLE
		1565	assert (periodicmax >= periodiccnt);
		1566	verify_heap (EV_A_ periodics, periodiccnt);
		1567	#endif
		1568
		1569	for (i = NUMPRI; i--; )
		1570	{
		1571	assert (pendingmax [i] >= pendingcnt [i]);
		1572	#if EV_IDLE_ENABLE
		1573	assert (idlemax [i] >= idlecnt [i]);
		1574	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1575	#endif
		1576	}
		1577
		1578	#if EV_FORK_ENABLE
		1579	assert (forkmax >= forkcnt);
		1580	array_verify (EV_A_ (W *)forks, forkcnt);
		1581	#endif
		1582
		1583	#if EV_ASYNC_ENABLE
		1584	assert (asyncmax >= asynccnt);
		1585	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1586	#endif
		1587
		1588	assert (preparemax >= preparecnt);
		1589	array_verify (EV_A_ (W *)prepares, preparecnt);
		1590
		1591	assert (checkmax >= checkcnt);
		1592	array_verify (EV_A_ (W *)checks, checkcnt);
		1593
		1594	# if 0
		1595	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1596	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1120	#endif	1597	# endif
		1598	#endif
		1599	}
		1600
		1601	#endif /* multiplicity */
1121		1602
1122	#if EV_MULTIPLICITY	1603	#if EV_MULTIPLICITY
1123	struct ev_loop *	1604	struct ev_loop *
1124	ev_default_loop_init (unsigned int flags)	1605	ev_default_loop_init (unsigned int flags)
1125	#else	1606	#else
1126	int	1607	int
1127	ev_default_loop (unsigned int flags)	1608	ev_default_loop (unsigned int flags)
1128	#endif	1609	#endif
1129	{	1610	{
1130	if (sigpipe [0] == sigpipe [1])
1131	if (pipe (sigpipe))
1132	return 0;
1133
1134	if (!ev_default_loop_ptr)	1611	if (!ev_default_loop_ptr)
1135	{	1612	{
1136	#if EV_MULTIPLICITY	1613	#if EV_MULTIPLICITY
1137	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1614	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1138	#else	1615	#else
…		…
1141		1618
1142	loop_init (EV_A_ flags);	1619	loop_init (EV_A_ flags);
1143		1620
1144	if (ev_backend (EV_A))	1621	if (ev_backend (EV_A))
1145	{	1622	{
1146	siginit (EV_A);
1147
1148	#ifndef _WIN32	1623	#ifndef _WIN32
1149	ev_signal_init (&childev, childcb, SIGCHLD);	1624	ev_signal_init (&childev, childcb, SIGCHLD);
1150	ev_set_priority (&childev, EV_MAXPRI);	1625	ev_set_priority (&childev, EV_MAXPRI);
1151	ev_signal_start (EV_A_ &childev);	1626	ev_signal_start (EV_A_ &childev);
1152	ev_unref (EV_A); /* child watcher should not keep loop alive */	1627	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1169	#ifndef _WIN32	1644	#ifndef _WIN32
1170	ev_ref (EV_A); /* child watcher */	1645	ev_ref (EV_A); /* child watcher */
1171	ev_signal_stop (EV_A_ &childev);	1646	ev_signal_stop (EV_A_ &childev);
1172	#endif	1647	#endif
1173		1648
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);	1649	loop_destroy (EV_A);
1181	}	1650	}
1182		1651
1183	void	1652	void
1184	ev_default_fork (void)	1653	ev_default_fork (void)
…		…
1186	#if EV_MULTIPLICITY	1655	#if EV_MULTIPLICITY
1187	struct ev_loop *loop = ev_default_loop_ptr;	1656	struct ev_loop *loop = ev_default_loop_ptr;
1188	#endif	1657	#endif
1189		1658
1190	if (backend)	1659	if (backend)
1191	postfork = 1;	1660	postfork = 1; /* must be in line with ev_loop_fork */
1192	}	1661	}
1193		1662
1194	/*****************************************************************************/	1663	/*****************************************************************************/
1195		1664
1196	void	1665	void
…		…
1213	{	1682	{
1214	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1683	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1215		1684
1216	p->w->pending = 0;	1685	p->w->pending = 0;
1217	EV_CB_INVOKE (p->w, p->events);	1686	EV_CB_INVOKE (p->w, p->events);
		1687	EV_FREQUENT_CHECK;
1218	}	1688	}
1219	}	1689	}
1220	}	1690	}
1221
1222	void inline_size
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	}
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		1691
1302	#if EV_IDLE_ENABLE	1692	#if EV_IDLE_ENABLE
1303	void inline_size	1693	void inline_size
1304	idle_reify (EV_P)	1694	idle_reify (EV_P)
1305	{	1695	{
…		…
1317	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);	1707	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1318	break;	1708	break;
1319	}	1709	}
1320	}	1710	}
1321	}	1711	}
		1712	}
		1713	#endif
		1714
		1715	void inline_size
		1716	timers_reify (EV_P)
		1717	{
		1718	EV_FREQUENT_CHECK;
		1719
		1720	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		1721	{
		1722	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1723
		1724	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
		1725
		1726	/* first reschedule or stop timer */
		1727	if (w->repeat)
		1728	{
		1729	ev_at (w) += w->repeat;
		1730	if (ev_at (w) < mn_now)
		1731	ev_at (w) = mn_now;
		1732
		1733	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1734
		1735	ANHE_at_cache (timers [HEAP0]);
		1736	downheap (timers, timercnt, HEAP0);
		1737	}
		1738	else
		1739	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1740
		1741	EV_FREQUENT_CHECK;
		1742	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
		1743	}
		1744	}
		1745
		1746	#if EV_PERIODIC_ENABLE
		1747	void inline_size
		1748	periodics_reify (EV_P)
		1749	{
		1750	EV_FREQUENT_CHECK;
		1751
		1752	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		1753	{
		1754	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1755
		1756	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
		1757
		1758	/* first reschedule or stop timer */
		1759	if (w->reschedule_cb)
		1760	{
		1761	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1762
		1763	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1764
		1765	ANHE_at_cache (periodics [HEAP0]);
		1766	downheap (periodics, periodiccnt, HEAP0);
		1767	}
		1768	else if (w->interval)
		1769	{
		1770	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1771	/* if next trigger time is not sufficiently in the future, put it there */
		1772	/* this might happen because of floating point inexactness */
		1773	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1774	{
		1775	ev_at (w) += w->interval;
		1776
		1777	/* if interval is unreasonably low we might still have a time in the past */
		1778	/* so correct this. this will make the periodic very inexact, but the user */
		1779	/* has effectively asked to get triggered more often than possible */
		1780	if (ev_at (w) < ev_rt_now)
		1781	ev_at (w) = ev_rt_now;
		1782	}
		1783
		1784	ANHE_at_cache (periodics [HEAP0]);
		1785	downheap (periodics, periodiccnt, HEAP0);
		1786	}
		1787	else
		1788	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1789
		1790	EV_FREQUENT_CHECK;
		1791	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
		1792	}
		1793	}
		1794
		1795	static void noinline
		1796	periodics_reschedule (EV_P)
		1797	{
		1798	int i;
		1799
		1800	/* adjust periodics after time jump */
		1801	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		1802	{
		1803	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
		1804
		1805	if (w->reschedule_cb)
		1806	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1807	else if (w->interval)
		1808	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1809
		1810	ANHE_at_cache (periodics [i]);
		1811	}
		1812
		1813	reheap (periodics, periodiccnt);
1322	}	1814	}
1323	#endif	1815	#endif
1324		1816
1325	void inline_speed	1817	void inline_speed
1326	time_update (EV_P_ ev_tstamp max_block)	1818	time_update (EV_P_ ev_tstamp max_block)
…		…
1355	*/	1847	*/
1356	for (i = 4; --i; )	1848	for (i = 4; --i; )
1357	{	1849	{
1358	rtmn_diff = ev_rt_now - mn_now;	1850	rtmn_diff = ev_rt_now - mn_now;
1359		1851
1360	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1852	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1361	return; /* all is well */	1853	return; /* all is well */
1362		1854
1363	ev_rt_now = ev_time ();	1855	ev_rt_now = ev_time ();
1364	mn_now = get_clock ();	1856	mn_now = get_clock ();
1365	now_floor = mn_now;	1857	now_floor = mn_now;
…		…
1381	#if EV_PERIODIC_ENABLE	1873	#if EV_PERIODIC_ENABLE
1382	periodics_reschedule (EV_A);	1874	periodics_reschedule (EV_A);
1383	#endif	1875	#endif
1384	/* adjust timers. this is easy, as the offset is the same for all of them */	1876	/* adjust timers. this is easy, as the offset is the same for all of them */
1385	for (i = 0; i < timercnt; ++i)	1877	for (i = 0; i < timercnt; ++i)
		1878	{
		1879	ANHE *he = timers + i + HEAP0;
1386	((WT)timers [i])->at += ev_rt_now - mn_now;	1880	ANHE_w (*he)->at += ev_rt_now - mn_now;
		1881	ANHE_at_cache (*he);
		1882	}
1387	}	1883	}
1388		1884
1389	mn_now = ev_rt_now;	1885	mn_now = ev_rt_now;
1390	}	1886	}
1391	}	1887	}
…		…
1405	static int loop_done;	1901	static int loop_done;
1406		1902
1407	void	1903	void
1408	ev_loop (EV_P_ int flags)	1904	ev_loop (EV_P_ int flags)
1409	{	1905	{
1410	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1906	loop_done = EVUNLOOP_CANCEL;
1411	? EVUNLOOP_ONE
1412	: EVUNLOOP_CANCEL;
1413		1907
1414	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1908	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1415		1909
1416	do	1910	do
1417	{	1911	{
		1912	#if EV_VERIFY >= 2
		1913	ev_loop_verify (EV_A);
		1914	#endif
		1915
1418	#ifndef _WIN32	1916	#ifndef _WIN32
1419	if (expect_false (curpid)) /* penalise the forking check even more */	1917	if (expect_false (curpid)) /* penalise the forking check even more */
1420	if (expect_false (getpid () != curpid))	1918	if (expect_false (getpid () != curpid))
1421	{	1919	{
1422	curpid = getpid ();	1920	curpid = getpid ();
…		…
1451	/* update fd-related kernel structures */	1949	/* update fd-related kernel structures */
1452	fd_reify (EV_A);	1950	fd_reify (EV_A);
1453		1951
1454	/* calculate blocking time */	1952	/* calculate blocking time */
1455	{	1953	{
1456	ev_tstamp block;	1954	ev_tstamp waittime = 0.;
		1955	ev_tstamp sleeptime = 0.;
1457		1956
1458	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1957	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1459	block = 0.; /* do not block at all */
1460	else
1461	{	1958	{
1462	/* update time to cancel out callback processing overhead */	1959	/* update time to cancel out callback processing overhead */
1463	time_update (EV_A_ 1e100);	1960	time_update (EV_A_ 1e100);
1464		1961
1465	block = MAX_BLOCKTIME;	1962	waittime = MAX_BLOCKTIME;
1466		1963
1467	if (timercnt)	1964	if (timercnt)
1468	{	1965	{
1469	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1966	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1470	if (block > to) block = to;	1967	if (waittime > to) waittime = to;
1471	}	1968	}
1472		1969
1473	#if EV_PERIODIC_ENABLE	1970	#if EV_PERIODIC_ENABLE
1474	if (periodiccnt)	1971	if (periodiccnt)
1475	{	1972	{
1476	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1973	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1477	if (block > to) block = to;	1974	if (waittime > to) waittime = to;
1478	}	1975	}
1479	#endif	1976	#endif
1480		1977
1481	if (expect_false (block < 0.)) block = 0.;	1978	if (expect_false (waittime < timeout_blocktime))
		1979	waittime = timeout_blocktime;
		1980
		1981	sleeptime = waittime - backend_fudge;
		1982
		1983	if (expect_true (sleeptime > io_blocktime))
		1984	sleeptime = io_blocktime;
		1985
		1986	if (sleeptime)
		1987	{
		1988	ev_sleep (sleeptime);
		1989	waittime -= sleeptime;
		1990	}
1482	}	1991	}
1483		1992
1484	++loop_count;	1993	++loop_count;
1485	backend_poll (EV_A_ block);	1994	backend_poll (EV_A_ waittime);
1486		1995
1487	/* update ev_rt_now, do magic */	1996	/* update ev_rt_now, do magic */
1488	time_update (EV_A_ block);	1997	time_update (EV_A_ waittime + sleeptime);
1489	}	1998	}
1490		1999
1491	/* queue pending timers and reschedule them */	2000	/* queue pending timers and reschedule them */
1492	timers_reify (EV_A); /* relative timers called last */	2001	timers_reify (EV_A); /* relative timers called last */
1493	#if EV_PERIODIC_ENABLE	2002	#if EV_PERIODIC_ENABLE
…		…
1502	/* queue check watchers, to be executed first */	2011	/* queue check watchers, to be executed first */
1503	if (expect_false (checkcnt))	2012	if (expect_false (checkcnt))
1504	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2013	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1505		2014
1506	call_pending (EV_A);	2015	call_pending (EV_A);
1507
1508	}	2016	}
1509	while (expect_true (activecnt && !loop_done));	2017	while (expect_true (
		2018	activecnt
		2019	&& !loop_done
		2020	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		2021	));
1510		2022
1511	if (loop_done == EVUNLOOP_ONE)	2023	if (loop_done == EVUNLOOP_ONE)
1512	loop_done = EVUNLOOP_CANCEL;	2024	loop_done = EVUNLOOP_CANCEL;
1513	}	2025	}
1514		2026
…		…
1603	if (expect_false (ev_is_active (w)))	2115	if (expect_false (ev_is_active (w)))
1604	return;	2116	return;
1605		2117
1606	assert (("ev_io_start called with negative fd", fd >= 0));	2118	assert (("ev_io_start called with negative fd", fd >= 0));
1607		2119
		2120	EV_FREQUENT_CHECK;
		2121
1608	ev_start (EV_A_ (W)w, 1);	2122	ev_start (EV_A_ (W)w, 1);
1609	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2123	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1610	wlist_add (&anfds[fd].head, (WL)w);	2124	wlist_add (&anfds[fd].head, (WL)w);
1611		2125
1612	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2126	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1613	w->events &= ~EV_IOFDSET;	2127	w->events &= ~EV_IOFDSET;
		2128
		2129	EV_FREQUENT_CHECK;
1614	}	2130	}
1615		2131
1616	void noinline	2132	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	2133	ev_io_stop (EV_P_ ev_io *w)
1618	{	2134	{
1619	clear_pending (EV_A_ (W)w);	2135	clear_pending (EV_A_ (W)w);
1620	if (expect_false (!ev_is_active (w)))	2136	if (expect_false (!ev_is_active (w)))
1621	return;	2137	return;
1622		2138
1623	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2139	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2140
		2141	EV_FREQUENT_CHECK;
1624		2142
1625	wlist_del (&anfds[w->fd].head, (WL)w);	2143	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	2144	ev_stop (EV_A_ (W)w);
1627		2145
1628	fd_change (EV_A_ w->fd, 1);	2146	fd_change (EV_A_ w->fd, 1);
		2147
		2148	EV_FREQUENT_CHECK;
1629	}	2149	}
1630		2150
1631	void noinline	2151	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	2152	ev_timer_start (EV_P_ ev_timer *w)
1633	{	2153	{
1634	if (expect_false (ev_is_active (w)))	2154	if (expect_false (ev_is_active (w)))
1635	return;	2155	return;
1636		2156
1637	((WT)w)->at += mn_now;	2157	ev_at (w) += mn_now;
1638		2158
1639	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2159	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640		2160
		2161	EV_FREQUENT_CHECK;
		2162
		2163	++timercnt;
1641	ev_start (EV_A_ (W)w, ++timercnt);	2164	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1642	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2165	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1643	timers [timercnt - 1] = (WT)w;	2166	ANHE_w (timers [ev_active (w)]) = (WT)w;
1644	upheap (timers, timercnt - 1);	2167	ANHE_at_cache (timers [ev_active (w)]);
		2168	upheap (timers, ev_active (w));
1645		2169
		2170	EV_FREQUENT_CHECK;
		2171
1646	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	2172	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1647	}	2173	}
1648		2174
1649	void noinline	2175	void noinline
1650	ev_timer_stop (EV_P_ ev_timer *w)	2176	ev_timer_stop (EV_P_ ev_timer *w)
1651	{	2177	{
1652	clear_pending (EV_A_ (W)w);	2178	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	2179	if (expect_false (!ev_is_active (w)))
1654	return;	2180	return;
1655		2181
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));	2182	EV_FREQUENT_CHECK;
1657		2183
1658	{	2184	{
1659	int active = ((W)w)->active;	2185	int active = ev_active (w);
1660		2186
		2187	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2188
		2189	--timercnt;
		2190
1661	if (expect_true (--active < --timercnt))	2191	if (expect_true (active < timercnt + HEAP0))
1662	{	2192	{
1663	timers [active] = timers [timercnt];	2193	timers [active] = timers [timercnt + HEAP0];
1664	adjustheap (timers, timercnt, active);	2194	adjustheap (timers, timercnt, active);
1665	}	2195	}
1666	}	2196	}
1667		2197
1668	((WT)w)->at -= mn_now;	2198	EV_FREQUENT_CHECK;
		2199
		2200	ev_at (w) -= mn_now;
1669		2201
1670	ev_stop (EV_A_ (W)w);	2202	ev_stop (EV_A_ (W)w);
1671	}	2203	}
1672		2204
1673	void noinline	2205	void noinline
1674	ev_timer_again (EV_P_ ev_timer *w)	2206	ev_timer_again (EV_P_ ev_timer *w)
1675	{	2207	{
		2208	EV_FREQUENT_CHECK;
		2209
1676	if (ev_is_active (w))	2210	if (ev_is_active (w))
1677	{	2211	{
1678	if (w->repeat)	2212	if (w->repeat)
1679	{	2213	{
1680	((WT)w)->at = mn_now + w->repeat;	2214	ev_at (w) = mn_now + w->repeat;
		2215	ANHE_at_cache (timers [ev_active (w)]);
1681	adjustheap (timers, timercnt, ((W)w)->active - 1);	2216	adjustheap (timers, timercnt, ev_active (w));
1682	}	2217	}
1683	else	2218	else
1684	ev_timer_stop (EV_A_ w);	2219	ev_timer_stop (EV_A_ w);
1685	}	2220	}
1686	else if (w->repeat)	2221	else if (w->repeat)
1687	{	2222	{
1688	w->at = w->repeat;	2223	ev_at (w) = w->repeat;
1689	ev_timer_start (EV_A_ w);	2224	ev_timer_start (EV_A_ w);
1690	}	2225	}
		2226
		2227	EV_FREQUENT_CHECK;
1691	}	2228	}
1692		2229
1693	#if EV_PERIODIC_ENABLE	2230	#if EV_PERIODIC_ENABLE
1694	void noinline	2231	void noinline
1695	ev_periodic_start (EV_P_ ev_periodic *w)	2232	ev_periodic_start (EV_P_ ev_periodic *w)
1696	{	2233	{
1697	if (expect_false (ev_is_active (w)))	2234	if (expect_false (ev_is_active (w)))
1698	return;	2235	return;
1699		2236
1700	if (w->reschedule_cb)	2237	if (w->reschedule_cb)
1701	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2238	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1702	else if (w->interval)	2239	else if (w->interval)
1703	{	2240	{
1704	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2241	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 */	2242	/* 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;	2243	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1707	}	2244	}
1708	else	2245	else
1709	((WT)w)->at = w->offset;	2246	ev_at (w) = w->offset;
1710		2247
		2248	EV_FREQUENT_CHECK;
		2249
		2250	++periodiccnt;
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	2251	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1712	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2252	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1713	periodics [periodiccnt - 1] = (WT)w;	2253	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1714	upheap (periodics, periodiccnt - 1);	2254	ANHE_at_cache (periodics [ev_active (w)]);
		2255	upheap (periodics, ev_active (w));
1715		2256
		2257	EV_FREQUENT_CHECK;
		2258
1716	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	2259	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1717	}	2260	}
1718		2261
1719	void noinline	2262	void noinline
1720	ev_periodic_stop (EV_P_ ev_periodic *w)	2263	ev_periodic_stop (EV_P_ ev_periodic *w)
1721	{	2264	{
1722	clear_pending (EV_A_ (W)w);	2265	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	2266	if (expect_false (!ev_is_active (w)))
1724	return;	2267	return;
1725		2268
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));	2269	EV_FREQUENT_CHECK;
1727		2270
1728	{	2271	{
1729	int active = ((W)w)->active;	2272	int active = ev_active (w);
1730		2273
		2274	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2275
		2276	--periodiccnt;
		2277
1731	if (expect_true (--active < --periodiccnt))	2278	if (expect_true (active < periodiccnt + HEAP0))
1732	{	2279	{
1733	periodics [active] = periodics [periodiccnt];	2280	periodics [active] = periodics [periodiccnt + HEAP0];
1734	adjustheap (periodics, periodiccnt, active);	2281	adjustheap (periodics, periodiccnt, active);
1735	}	2282	}
1736	}	2283	}
1737		2284
		2285	EV_FREQUENT_CHECK;
		2286
1738	ev_stop (EV_A_ (W)w);	2287	ev_stop (EV_A_ (W)w);
1739	}	2288	}
1740		2289
1741	void noinline	2290	void noinline
1742	ev_periodic_again (EV_P_ ev_periodic *w)	2291	ev_periodic_again (EV_P_ ev_periodic *w)
…		…
1759	#endif	2308	#endif
1760	if (expect_false (ev_is_active (w)))	2309	if (expect_false (ev_is_active (w)))
1761	return;	2310	return;
1762		2311
1763	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2312	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		2313
		2314	evpipe_init (EV_A);
		2315
		2316	EV_FREQUENT_CHECK;
1764		2317
1765	{	2318	{
1766	#ifndef _WIN32	2319	#ifndef _WIN32
1767	sigset_t full, prev;	2320	sigset_t full, prev;
1768	sigfillset (&full);	2321	sigfillset (&full);
…		…
1780	wlist_add (&signals [w->signum - 1].head, (WL)w);	2333	wlist_add (&signals [w->signum - 1].head, (WL)w);
1781		2334
1782	if (!((WL)w)->next)	2335	if (!((WL)w)->next)
1783	{	2336	{
1784	#if _WIN32	2337	#if _WIN32
1785	signal (w->signum, sighandler);	2338	signal (w->signum, ev_sighandler);
1786	#else	2339	#else
1787	struct sigaction sa;	2340	struct sigaction sa;
1788	sa.sa_handler = sighandler;	2341	sa.sa_handler = ev_sighandler;
1789	sigfillset (&sa.sa_mask);	2342	sigfillset (&sa.sa_mask);
1790	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2343	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1791	sigaction (w->signum, &sa, 0);	2344	sigaction (w->signum, &sa, 0);
1792	#endif	2345	#endif
1793	}	2346	}
		2347
		2348	EV_FREQUENT_CHECK;
1794	}	2349	}
1795		2350
1796	void noinline	2351	void noinline
1797	ev_signal_stop (EV_P_ ev_signal *w)	2352	ev_signal_stop (EV_P_ ev_signal *w)
1798	{	2353	{
1799	clear_pending (EV_A_ (W)w);	2354	clear_pending (EV_A_ (W)w);
1800	if (expect_false (!ev_is_active (w)))	2355	if (expect_false (!ev_is_active (w)))
1801	return;	2356	return;
1802		2357
		2358	EV_FREQUENT_CHECK;
		2359
1803	wlist_del (&signals [w->signum - 1].head, (WL)w);	2360	wlist_del (&signals [w->signum - 1].head, (WL)w);
1804	ev_stop (EV_A_ (W)w);	2361	ev_stop (EV_A_ (W)w);
1805		2362
1806	if (!signals [w->signum - 1].head)	2363	if (!signals [w->signum - 1].head)
1807	signal (w->signum, SIG_DFL);	2364	signal (w->signum, SIG_DFL);
		2365
		2366	EV_FREQUENT_CHECK;
1808	}	2367	}
1809		2368
1810	void	2369	void
1811	ev_child_start (EV_P_ ev_child *w)	2370	ev_child_start (EV_P_ ev_child *w)
1812	{	2371	{
…		…
1814	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2373	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1815	#endif	2374	#endif
1816	if (expect_false (ev_is_active (w)))	2375	if (expect_false (ev_is_active (w)))
1817	return;	2376	return;
1818		2377
		2378	EV_FREQUENT_CHECK;
		2379
1819	ev_start (EV_A_ (W)w, 1);	2380	ev_start (EV_A_ (W)w, 1);
1820	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2381	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2382
		2383	EV_FREQUENT_CHECK;
1821	}	2384	}
1822		2385
1823	void	2386	void
1824	ev_child_stop (EV_P_ ev_child *w)	2387	ev_child_stop (EV_P_ ev_child *w)
1825	{	2388	{
1826	clear_pending (EV_A_ (W)w);	2389	clear_pending (EV_A_ (W)w);
1827	if (expect_false (!ev_is_active (w)))	2390	if (expect_false (!ev_is_active (w)))
1828	return;	2391	return;
1829		2392
		2393	EV_FREQUENT_CHECK;
		2394
1830	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2395	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1831	ev_stop (EV_A_ (W)w);	2396	ev_stop (EV_A_ (W)w);
		2397
		2398	EV_FREQUENT_CHECK;
1832	}	2399	}
1833		2400
1834	#if EV_STAT_ENABLE	2401	#if EV_STAT_ENABLE
1835		2402
1836	# ifdef _WIN32	2403	# ifdef _WIN32
…		…
1854	if (w->wd < 0)	2421	if (w->wd < 0)
1855	{	2422	{
1856	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2423	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1857		2424
1858	/* monitor some parent directory for speedup hints */	2425	/* monitor some parent directory for speedup hints */
		2426	/* note that exceeding the hardcoded limit is not a correctness issue, */
		2427	/* but an efficiency issue only */
1859	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2428	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1860	{	2429	{
1861	char path [4096];	2430	char path [4096];
1862	strcpy (path, w->path);	2431	strcpy (path, w->path);
1863		2432
…		…
2062	else	2631	else
2063	#endif	2632	#endif
2064	ev_timer_start (EV_A_ &w->timer);	2633	ev_timer_start (EV_A_ &w->timer);
2065		2634
2066	ev_start (EV_A_ (W)w, 1);	2635	ev_start (EV_A_ (W)w, 1);
		2636
		2637	EV_FREQUENT_CHECK;
2067	}	2638	}
2068		2639
2069	void	2640	void
2070	ev_stat_stop (EV_P_ ev_stat *w)	2641	ev_stat_stop (EV_P_ ev_stat *w)
2071	{	2642	{
2072	clear_pending (EV_A_ (W)w);	2643	clear_pending (EV_A_ (W)w);
2073	if (expect_false (!ev_is_active (w)))	2644	if (expect_false (!ev_is_active (w)))
2074	return;	2645	return;
2075		2646
		2647	EV_FREQUENT_CHECK;
		2648
2076	#if EV_USE_INOTIFY	2649	#if EV_USE_INOTIFY
2077	infy_del (EV_A_ w);	2650	infy_del (EV_A_ w);
2078	#endif	2651	#endif
2079	ev_timer_stop (EV_A_ &w->timer);	2652	ev_timer_stop (EV_A_ &w->timer);
2080		2653
2081	ev_stop (EV_A_ (W)w);	2654	ev_stop (EV_A_ (W)w);
		2655
		2656	EV_FREQUENT_CHECK;
2082	}	2657	}
2083	#endif	2658	#endif
2084		2659
2085	#if EV_IDLE_ENABLE	2660	#if EV_IDLE_ENABLE
2086	void	2661	void
…		…
2088	{	2663	{
2089	if (expect_false (ev_is_active (w)))	2664	if (expect_false (ev_is_active (w)))
2090	return;	2665	return;
2091		2666
2092	pri_adjust (EV_A_ (W)w);	2667	pri_adjust (EV_A_ (W)w);
		2668
		2669	EV_FREQUENT_CHECK;
2093		2670
2094	{	2671	{
2095	int active = ++idlecnt [ABSPRI (w)];	2672	int active = ++idlecnt [ABSPRI (w)];
2096		2673
2097	++idleall;	2674	++idleall;
2098	ev_start (EV_A_ (W)w, active);	2675	ev_start (EV_A_ (W)w, active);
2099		2676
2100	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2677	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2101	idles [ABSPRI (w)][active - 1] = w;	2678	idles [ABSPRI (w)][active - 1] = w;
2102	}	2679	}
		2680
		2681	EV_FREQUENT_CHECK;
2103	}	2682	}
2104		2683
2105	void	2684	void
2106	ev_idle_stop (EV_P_ ev_idle *w)	2685	ev_idle_stop (EV_P_ ev_idle *w)
2107	{	2686	{
2108	clear_pending (EV_A_ (W)w);	2687	clear_pending (EV_A_ (W)w);
2109	if (expect_false (!ev_is_active (w)))	2688	if (expect_false (!ev_is_active (w)))
2110	return;	2689	return;
2111		2690
		2691	EV_FREQUENT_CHECK;
		2692
2112	{	2693	{
2113	int active = ((W)w)->active;	2694	int active = ev_active (w);
2114		2695
2115	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2696	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2116	((W)idles [ABSPRI (w)][active - 1])->active = active;	2697	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2117		2698
2118	ev_stop (EV_A_ (W)w);	2699	ev_stop (EV_A_ (W)w);
2119	--idleall;	2700	--idleall;
2120	}	2701	}
		2702
		2703	EV_FREQUENT_CHECK;
2121	}	2704	}
2122	#endif	2705	#endif
2123		2706
2124	void	2707	void
2125	ev_prepare_start (EV_P_ ev_prepare *w)	2708	ev_prepare_start (EV_P_ ev_prepare *w)
2126	{	2709	{
2127	if (expect_false (ev_is_active (w)))	2710	if (expect_false (ev_is_active (w)))
2128	return;	2711	return;
		2712
		2713	EV_FREQUENT_CHECK;
2129		2714
2130	ev_start (EV_A_ (W)w, ++preparecnt);	2715	ev_start (EV_A_ (W)w, ++preparecnt);
2131	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2716	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2132	prepares [preparecnt - 1] = w;	2717	prepares [preparecnt - 1] = w;
		2718
		2719	EV_FREQUENT_CHECK;
2133	}	2720	}
2134		2721
2135	void	2722	void
2136	ev_prepare_stop (EV_P_ ev_prepare *w)	2723	ev_prepare_stop (EV_P_ ev_prepare *w)
2137	{	2724	{
2138	clear_pending (EV_A_ (W)w);	2725	clear_pending (EV_A_ (W)w);
2139	if (expect_false (!ev_is_active (w)))	2726	if (expect_false (!ev_is_active (w)))
2140	return;	2727	return;
2141		2728
		2729	EV_FREQUENT_CHECK;
		2730
2142	{	2731	{
2143	int active = ((W)w)->active;	2732	int active = ev_active (w);
		2733
2144	prepares [active - 1] = prepares [--preparecnt];	2734	prepares [active - 1] = prepares [--preparecnt];
2145	((W)prepares [active - 1])->active = active;	2735	ev_active (prepares [active - 1]) = active;
2146	}	2736	}
2147		2737
2148	ev_stop (EV_A_ (W)w);	2738	ev_stop (EV_A_ (W)w);
		2739
		2740	EV_FREQUENT_CHECK;
2149	}	2741	}
2150		2742
2151	void	2743	void
2152	ev_check_start (EV_P_ ev_check *w)	2744	ev_check_start (EV_P_ ev_check *w)
2153	{	2745	{
2154	if (expect_false (ev_is_active (w)))	2746	if (expect_false (ev_is_active (w)))
2155	return;	2747	return;
		2748
		2749	EV_FREQUENT_CHECK;
2156		2750
2157	ev_start (EV_A_ (W)w, ++checkcnt);	2751	ev_start (EV_A_ (W)w, ++checkcnt);
2158	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2752	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2159	checks [checkcnt - 1] = w;	2753	checks [checkcnt - 1] = w;
		2754
		2755	EV_FREQUENT_CHECK;
2160	}	2756	}
2161		2757
2162	void	2758	void
2163	ev_check_stop (EV_P_ ev_check *w)	2759	ev_check_stop (EV_P_ ev_check *w)
2164	{	2760	{
2165	clear_pending (EV_A_ (W)w);	2761	clear_pending (EV_A_ (W)w);
2166	if (expect_false (!ev_is_active (w)))	2762	if (expect_false (!ev_is_active (w)))
2167	return;	2763	return;
2168		2764
		2765	EV_FREQUENT_CHECK;
		2766
2169	{	2767	{
2170	int active = ((W)w)->active;	2768	int active = ev_active (w);
		2769
2171	checks [active - 1] = checks [--checkcnt];	2770	checks [active - 1] = checks [--checkcnt];
2172	((W)checks [active - 1])->active = active;	2771	ev_active (checks [active - 1]) = active;
2173	}	2772	}
2174		2773
2175	ev_stop (EV_A_ (W)w);	2774	ev_stop (EV_A_ (W)w);
		2775
		2776	EV_FREQUENT_CHECK;
2176	}	2777	}
2177		2778
2178	#if EV_EMBED_ENABLE	2779	#if EV_EMBED_ENABLE
2179	void noinline	2780	void noinline
2180	ev_embed_sweep (EV_P_ ev_embed *w)	2781	ev_embed_sweep (EV_P_ ev_embed *w)
2181	{	2782	{
2182	ev_loop (w->loop, EVLOOP_NONBLOCK);	2783	ev_loop (w->other, EVLOOP_NONBLOCK);
2183	}	2784	}
2184		2785
2185	static void	2786	static void
2186	embed_cb (EV_P_ ev_io *io, int revents)	2787	embed_io_cb (EV_P_ ev_io *io, int revents)
2187	{	2788	{
2188	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2789	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2189		2790
2190	if (ev_cb (w))	2791	if (ev_cb (w))
2191	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2792	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2192	else	2793	else
2193	ev_embed_sweep (loop, w);	2794	ev_loop (w->other, EVLOOP_NONBLOCK);
2194	}	2795	}
		2796
		2797	static void
		2798	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2799	{
		2800	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2801
		2802	{
		2803	struct ev_loop *loop = w->other;
		2804
		2805	while (fdchangecnt)
		2806	{
		2807	fd_reify (EV_A);
		2808	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2809	}
		2810	}
		2811	}
		2812
		2813	#if 0
		2814	static void
		2815	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2816	{
		2817	ev_idle_stop (EV_A_ idle);
		2818	}
		2819	#endif
2195		2820
2196	void	2821	void
2197	ev_embed_start (EV_P_ ev_embed *w)	2822	ev_embed_start (EV_P_ ev_embed *w)
2198	{	2823	{
2199	if (expect_false (ev_is_active (w)))	2824	if (expect_false (ev_is_active (w)))
2200	return;	2825	return;
2201		2826
2202	{	2827	{
2203	struct ev_loop *loop = w->loop;	2828	struct ev_loop *loop = w->other;
2204	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2829	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2205	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2830	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2206	}	2831	}
		2832
		2833	EV_FREQUENT_CHECK;
2207		2834
2208	ev_set_priority (&w->io, ev_priority (w));	2835	ev_set_priority (&w->io, ev_priority (w));
2209	ev_io_start (EV_A_ &w->io);	2836	ev_io_start (EV_A_ &w->io);
2210		2837
		2838	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2839	ev_set_priority (&w->prepare, EV_MINPRI);
		2840	ev_prepare_start (EV_A_ &w->prepare);
		2841
		2842	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2843
2211	ev_start (EV_A_ (W)w, 1);	2844	ev_start (EV_A_ (W)w, 1);
		2845
		2846	EV_FREQUENT_CHECK;
2212	}	2847	}
2213		2848
2214	void	2849	void
2215	ev_embed_stop (EV_P_ ev_embed *w)	2850	ev_embed_stop (EV_P_ ev_embed *w)
2216	{	2851	{
2217	clear_pending (EV_A_ (W)w);	2852	clear_pending (EV_A_ (W)w);
2218	if (expect_false (!ev_is_active (w)))	2853	if (expect_false (!ev_is_active (w)))
2219	return;	2854	return;
2220		2855
		2856	EV_FREQUENT_CHECK;
		2857
2221	ev_io_stop (EV_A_ &w->io);	2858	ev_io_stop (EV_A_ &w->io);
		2859	ev_prepare_stop (EV_A_ &w->prepare);
2222		2860
2223	ev_stop (EV_A_ (W)w);	2861	ev_stop (EV_A_ (W)w);
		2862
		2863	EV_FREQUENT_CHECK;
2224	}	2864	}
2225	#endif	2865	#endif
2226		2866
2227	#if EV_FORK_ENABLE	2867	#if EV_FORK_ENABLE
2228	void	2868	void
2229	ev_fork_start (EV_P_ ev_fork *w)	2869	ev_fork_start (EV_P_ ev_fork *w)
2230	{	2870	{
2231	if (expect_false (ev_is_active (w)))	2871	if (expect_false (ev_is_active (w)))
2232	return;	2872	return;
		2873
		2874	EV_FREQUENT_CHECK;
2233		2875
2234	ev_start (EV_A_ (W)w, ++forkcnt);	2876	ev_start (EV_A_ (W)w, ++forkcnt);
2235	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2877	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2236	forks [forkcnt - 1] = w;	2878	forks [forkcnt - 1] = w;
		2879
		2880	EV_FREQUENT_CHECK;
2237	}	2881	}
2238		2882
2239	void	2883	void
2240	ev_fork_stop (EV_P_ ev_fork *w)	2884	ev_fork_stop (EV_P_ ev_fork *w)
2241	{	2885	{
2242	clear_pending (EV_A_ (W)w);	2886	clear_pending (EV_A_ (W)w);
2243	if (expect_false (!ev_is_active (w)))	2887	if (expect_false (!ev_is_active (w)))
2244	return;	2888	return;
2245		2889
		2890	EV_FREQUENT_CHECK;
		2891
2246	{	2892	{
2247	int active = ((W)w)->active;	2893	int active = ev_active (w);
		2894
2248	forks [active - 1] = forks [--forkcnt];	2895	forks [active - 1] = forks [--forkcnt];
2249	((W)forks [active - 1])->active = active;	2896	ev_active (forks [active - 1]) = active;
2250	}	2897	}
2251		2898
2252	ev_stop (EV_A_ (W)w);	2899	ev_stop (EV_A_ (W)w);
		2900
		2901	EV_FREQUENT_CHECK;
		2902	}
		2903	#endif
		2904
		2905	#if EV_ASYNC_ENABLE
		2906	void
		2907	ev_async_start (EV_P_ ev_async *w)
		2908	{
		2909	if (expect_false (ev_is_active (w)))
		2910	return;
		2911
		2912	evpipe_init (EV_A);
		2913
		2914	EV_FREQUENT_CHECK;
		2915
		2916	ev_start (EV_A_ (W)w, ++asynccnt);
		2917	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2918	asyncs [asynccnt - 1] = w;
		2919
		2920	EV_FREQUENT_CHECK;
		2921	}
		2922
		2923	void
		2924	ev_async_stop (EV_P_ ev_async *w)
		2925	{
		2926	clear_pending (EV_A_ (W)w);
		2927	if (expect_false (!ev_is_active (w)))
		2928	return;
		2929
		2930	EV_FREQUENT_CHECK;
		2931
		2932	{
		2933	int active = ev_active (w);
		2934
		2935	asyncs [active - 1] = asyncs [--asynccnt];
		2936	ev_active (asyncs [active - 1]) = active;
		2937	}
		2938
		2939	ev_stop (EV_A_ (W)w);
		2940
		2941	EV_FREQUENT_CHECK;
		2942	}
		2943
		2944	void
		2945	ev_async_send (EV_P_ ev_async *w)
		2946	{
		2947	w->sent = 1;
		2948	evpipe_write (EV_A_ &gotasync);
2253	}	2949	}
2254	#endif	2950	#endif
2255		2951
2256	/*****************************************************************************/	2952	/*****************************************************************************/
2257		2953
…		…
2315	ev_timer_set (&once->to, timeout, 0.);	3011	ev_timer_set (&once->to, timeout, 0.);
2316	ev_timer_start (EV_A_ &once->to);	3012	ev_timer_start (EV_A_ &once->to);
2317	}	3013	}
2318	}	3014	}
2319		3015
		3016	#if EV_MULTIPLICITY
		3017	#include "ev_wrap.h"
		3018	#endif
		3019
2320	#ifdef __cplusplus	3020	#ifdef __cplusplus
2321	}	3021	}
2322	#endif	3022	#endif
2323		3023

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