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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 1.250 by root, Thu May 22 02:44:57 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);
700	}	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	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		943	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		944	for (i = 0; i < N; ++i)
		945	upheap (heap, i + HEAP0);
		946	}
		947
		948	#if EV_VERIFY
		949	static void
		950	checkheap (ANHE *heap, int N)
		951	{
		952	int i;
		953
		954	for (i = HEAP0; i < N + HEAP0; ++i)
		955	{
		956	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		957	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		958	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		959	}
		960	}
		961	#endif
701		962
702	/*****************************************************************************/	963	/*****************************************************************************/
703		964
704	typedef struct	965	typedef struct
705	{	966	{
706	WL head;	967	WL head;
707	sig_atomic_t volatile gotsig;	968	EV_ATOMIC_T gotsig;
708	} ANSIG;	969	} ANSIG;
709		970
710	static ANSIG *signals;	971	static ANSIG *signals;
711	static int signalmax;	972	static int signalmax;
712		973
713	static int sigpipe [2];	974	static EV_ATOMIC_T gotsig;
714	static sig_atomic_t volatile gotsig;
715	static ev_io sigev;
716		975
717	void inline_size	976	void inline_size
718	signals_init (ANSIG *base, int count)	977	signals_init (ANSIG *base, int count)
719	{	978	{
720	while (count--)	979	while (count--)
…		…
724		983
725	++base;	984	++base;
726	}	985	}
727	}	986	}
728		987
729	static void	988	/*****************************************************************************/
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		989
780	void inline_speed	990	void inline_speed
781	fd_intern (int fd)	991	fd_intern (int fd)
782	{	992	{
783	#ifdef _WIN32	993	#ifdef _WIN32
…		…
788	fcntl (fd, F_SETFL, O_NONBLOCK);	998	fcntl (fd, F_SETFL, O_NONBLOCK);
789	#endif	999	#endif
790	}	1000	}
791		1001
792	static void noinline	1002	static void noinline
793	siginit (EV_P)	1003	evpipe_init (EV_P)
794	{	1004	{
		1005	if (!ev_is_active (&pipeev))
		1006	{
		1007	#if EV_USE_EVENTFD
		1008	if ((evfd = eventfd (0, 0)) >= 0)
		1009	{
		1010	evpipe [0] = -1;
		1011	fd_intern (evfd);
		1012	ev_io_set (&pipeev, evfd, EV_READ);
		1013	}
		1014	else
		1015	#endif
		1016	{
		1017	while (pipe (evpipe))
		1018	syserr ("(libev) error creating signal/async pipe");
		1019
795	fd_intern (sigpipe [0]);	1020	fd_intern (evpipe [0]);
796	fd_intern (sigpipe [1]);	1021	fd_intern (evpipe [1]);
		1022	ev_io_set (&pipeev, evpipe [0], EV_READ);
		1023	}
797		1024
798	ev_io_set (&sigev, sigpipe [0], EV_READ);
799	ev_io_start (EV_A_ &sigev);	1025	ev_io_start (EV_A_ &pipeev);
800	ev_unref (EV_A); /* child watcher should not keep loop alive */	1026	ev_unref (EV_A); /* watcher should not keep loop alive */
		1027	}
		1028	}
		1029
		1030	void inline_size
		1031	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1032	{
		1033	if (!*flag)
		1034	{
		1035	int old_errno = errno; /* save errno because write might clobber it */
		1036
		1037	*flag = 1;
		1038
		1039	#if EV_USE_EVENTFD
		1040	if (evfd >= 0)
		1041	{
		1042	uint64_t counter = 1;
		1043	write (evfd, &counter, sizeof (uint64_t));
		1044	}
		1045	else
		1046	#endif
		1047	write (evpipe [1], &old_errno, 1);
		1048
		1049	errno = old_errno;
		1050	}
		1051	}
		1052
		1053	static void
		1054	pipecb (EV_P_ ev_io *iow, int revents)
		1055	{
		1056	#if EV_USE_EVENTFD
		1057	if (evfd >= 0)
		1058	{
		1059	uint64_t counter;
		1060	read (evfd, &counter, sizeof (uint64_t));
		1061	}
		1062	else
		1063	#endif
		1064	{
		1065	char dummy;
		1066	read (evpipe [0], &dummy, 1);
		1067	}
		1068
		1069	if (gotsig && ev_is_default_loop (EV_A))
		1070	{
		1071	int signum;
		1072	gotsig = 0;
		1073
		1074	for (signum = signalmax; signum--; )
		1075	if (signals [signum].gotsig)
		1076	ev_feed_signal_event (EV_A_ signum + 1);
		1077	}
		1078
		1079	#if EV_ASYNC_ENABLE
		1080	if (gotasync)
		1081	{
		1082	int i;
		1083	gotasync = 0;
		1084
		1085	for (i = asynccnt; i--; )
		1086	if (asyncs [i]->sent)
		1087	{
		1088	asyncs [i]->sent = 0;
		1089	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		1090	}
		1091	}
		1092	#endif
801	}	1093	}
802		1094
803	/*****************************************************************************/	1095	/*****************************************************************************/
804		1096
		1097	static void
		1098	ev_sighandler (int signum)
		1099	{
		1100	#if EV_MULTIPLICITY
		1101	struct ev_loop *loop = &default_loop_struct;
		1102	#endif
		1103
		1104	#if _WIN32
		1105	signal (signum, ev_sighandler);
		1106	#endif
		1107
		1108	signals [signum - 1].gotsig = 1;
		1109	evpipe_write (EV_A_ &gotsig);
		1110	}
		1111
		1112	void noinline
		1113	ev_feed_signal_event (EV_P_ int signum)
		1114	{
		1115	WL w;
		1116
		1117	#if EV_MULTIPLICITY
		1118	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		1119	#endif
		1120
		1121	--signum;
		1122
		1123	if (signum < 0 || signum >= signalmax)
		1124	return;
		1125
		1126	signals [signum].gotsig = 0;
		1127
		1128	for (w = signals [signum].head; w; w = w->next)
		1129	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		1130	}
		1131
		1132	/*****************************************************************************/
		1133
805	static WL childs [EV_PID_HASHSIZE];	1134	static WL childs [EV_PID_HASHSIZE];
806		1135
807	#ifndef _WIN32	1136	#ifndef _WIN32
808		1137
809	static ev_signal childev;	1138	static ev_signal childev;
810		1139
		1140	#ifndef WIFCONTINUED
		1141	# define WIFCONTINUED(status) 0
		1142	#endif
		1143
811	void inline_speed	1144	void inline_speed
812	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1145	child_reap (EV_P_ int chain, int pid, int status)
813	{	1146	{
814	ev_child *w;	1147	ev_child *w;
		1148	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
815		1149
816	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1150	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1151	{
817	if (w->pid == pid || !w->pid)	1152	if ((w->pid == pid || !w->pid)
		1153	&& (!traced || (w->flags & 1)))
818	{	1154	{
819	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	1155	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;	1156	w->rpid = pid;
821	w->rstatus = status;	1157	w->rstatus = status;
822	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1158	ev_feed_event (EV_A_ (W)w, EV_CHILD);
823	}	1159	}
		1160	}
824	}	1161	}
825		1162
826	#ifndef WCONTINUED	1163	#ifndef WCONTINUED
827	# define WCONTINUED 0	1164	# define WCONTINUED 0
828	#endif	1165	#endif
…		…
837	if (!WCONTINUED	1174	if (!WCONTINUED
838	|| errno != EINVAL	1175	|| errno != EINVAL
839	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1176	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840	return;	1177	return;
841		1178
842	/* make sure we are called again until all childs have been reaped */	1179	/* 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 */	1180	/* 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);	1181	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
845		1182
846	child_reap (EV_A_ sw, pid, pid, status);	1183	child_reap (EV_A_ pid, pid, status);
847	if (EV_PID_HASHSIZE > 1)	1184	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 */	1185	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
849	}	1186	}
850		1187
851	#endif	1188	#endif
852		1189
853	/*****************************************************************************/	1190	/*****************************************************************************/
…		…
925	}	1262	}
926		1263
927	unsigned int	1264	unsigned int
928	ev_embeddable_backends (void)	1265	ev_embeddable_backends (void)
929	{	1266	{
930	return EVBACKEND_EPOLL	1267	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
931	| EVBACKEND_KQUEUE	1268
932	| EVBACKEND_PORT;	1269	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1270	/* please fix it and tell me how to detect the fix */
		1271	flags &= ~EVBACKEND_EPOLL;
		1272
		1273	return flags;
933	}	1274	}
934		1275
935	unsigned int	1276	unsigned int
936	ev_backend (EV_P)	1277	ev_backend (EV_P)
937	{	1278	{
…		…
940		1281
941	unsigned int	1282	unsigned int
942	ev_loop_count (EV_P)	1283	ev_loop_count (EV_P)
943	{	1284	{
944	return loop_count;	1285	return loop_count;
		1286	}
		1287
		1288	void
		1289	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1290	{
		1291	io_blocktime = interval;
		1292	}
		1293
		1294	void
		1295	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1296	{
		1297	timeout_blocktime = interval;
945	}	1298	}
946		1299
947	static void noinline	1300	static void noinline
948	loop_init (EV_P_ unsigned int flags)	1301	loop_init (EV_P_ unsigned int flags)
949	{	1302	{
…		…
955	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1308	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
956	have_monotonic = 1;	1309	have_monotonic = 1;
957	}	1310	}
958	#endif	1311	#endif
959		1312
960	ev_rt_now = ev_time ();	1313	ev_rt_now = ev_time ();
961	mn_now = get_clock ();	1314	mn_now = get_clock ();
962	now_floor = mn_now;	1315	now_floor = mn_now;
963	rtmn_diff = ev_rt_now - mn_now;	1316	rtmn_diff = ev_rt_now - mn_now;
		1317
		1318	io_blocktime = 0.;
		1319	timeout_blocktime = 0.;
		1320	backend = 0;
		1321	backend_fd = -1;
		1322	gotasync = 0;
		1323	#if EV_USE_INOTIFY
		1324	fs_fd = -2;
		1325	#endif
964		1326
965	/* pid check not overridable via env */	1327	/* pid check not overridable via env */
966	#ifndef _WIN32	1328	#ifndef _WIN32
967	if (flags & EVFLAG_FORKCHECK)	1329	if (flags & EVFLAG_FORKCHECK)
968	curpid = getpid ();	1330	curpid = getpid ();
…		…
971	if (!(flags & EVFLAG_NOENV)	1333	if (!(flags & EVFLAG_NOENV)
972	&& !enable_secure ()	1334	&& !enable_secure ()
973	&& getenv ("LIBEV_FLAGS"))	1335	&& getenv ("LIBEV_FLAGS"))
974	flags = atoi (getenv ("LIBEV_FLAGS"));	1336	flags = atoi (getenv ("LIBEV_FLAGS"));
975		1337
976	if (!(flags & 0x0000ffffUL))	1338	if (!(flags & 0x0000ffffU))
977	flags |= ev_recommended_backends ();	1339	flags |= ev_recommended_backends ();
978
979	backend = 0;
980	backend_fd = -1;
981	#if EV_USE_INOTIFY
982	fs_fd = -2;
983	#endif
984		1340
985	#if EV_USE_PORT	1341	#if EV_USE_PORT
986	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1342	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987	#endif	1343	#endif
988	#if EV_USE_KQUEUE	1344	#if EV_USE_KQUEUE
…		…
996	#endif	1352	#endif
997	#if EV_USE_SELECT	1353	#if EV_USE_SELECT
998	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1354	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
999	#endif	1355	#endif
1000		1356
1001	ev_init (&sigev, sigcb);	1357	ev_init (&pipeev, pipecb);
1002	ev_set_priority (&sigev, EV_MAXPRI);	1358	ev_set_priority (&pipeev, EV_MAXPRI);
1003	}	1359	}
1004	}	1360	}
1005		1361
1006	static void noinline	1362	static void noinline
1007	loop_destroy (EV_P)	1363	loop_destroy (EV_P)
1008	{	1364	{
1009	int i;	1365	int i;
		1366
		1367	if (ev_is_active (&pipeev))
		1368	{
		1369	ev_ref (EV_A); /* signal watcher */
		1370	ev_io_stop (EV_A_ &pipeev);
		1371
		1372	#if EV_USE_EVENTFD
		1373	if (evfd >= 0)
		1374	close (evfd);
		1375	#endif
		1376
		1377	if (evpipe [0] >= 0)
		1378	{
		1379	close (evpipe [0]);
		1380	close (evpipe [1]);
		1381	}
		1382	}
1010		1383
1011	#if EV_USE_INOTIFY	1384	#if EV_USE_INOTIFY
1012	if (fs_fd >= 0)	1385	if (fs_fd >= 0)
1013	close (fs_fd);	1386	close (fs_fd);
1014	#endif	1387	#endif
…		…
1037	array_free (pending, [i]);	1410	array_free (pending, [i]);
1038	#if EV_IDLE_ENABLE	1411	#if EV_IDLE_ENABLE
1039	array_free (idle, [i]);	1412	array_free (idle, [i]);
1040	#endif	1413	#endif
1041	}	1414	}
		1415
		1416	ev_free (anfds); anfdmax = 0;
1042		1417
1043	/* have to use the microsoft-never-gets-it-right macro */	1418	/* have to use the microsoft-never-gets-it-right macro */
1044	array_free (fdchange, EMPTY);	1419	array_free (fdchange, EMPTY);
1045	array_free (timer, EMPTY);	1420	array_free (timer, EMPTY);
1046	#if EV_PERIODIC_ENABLE	1421	#if EV_PERIODIC_ENABLE
1047	array_free (periodic, EMPTY);	1422	array_free (periodic, EMPTY);
1048	#endif	1423	#endif
		1424	#if EV_FORK_ENABLE
		1425	array_free (fork, EMPTY);
		1426	#endif
1049	array_free (prepare, EMPTY);	1427	array_free (prepare, EMPTY);
1050	array_free (check, EMPTY);	1428	array_free (check, EMPTY);
		1429	#if EV_ASYNC_ENABLE
		1430	array_free (async, EMPTY);
		1431	#endif
1051		1432
1052	backend = 0;	1433	backend = 0;
1053	}	1434	}
1054		1435
		1436	#if EV_USE_INOTIFY
1055	void inline_size infy_fork (EV_P);	1437	void inline_size infy_fork (EV_P);
		1438	#endif
1056		1439
1057	void inline_size	1440	void inline_size
1058	loop_fork (EV_P)	1441	loop_fork (EV_P)
1059	{	1442	{
1060	#if EV_USE_PORT	1443	#if EV_USE_PORT
…		…
1068	#endif	1451	#endif
1069	#if EV_USE_INOTIFY	1452	#if EV_USE_INOTIFY
1070	infy_fork (EV_A);	1453	infy_fork (EV_A);
1071	#endif	1454	#endif
1072		1455
1073	if (ev_is_active (&sigev))	1456	if (ev_is_active (&pipeev))
1074	{	1457	{
1075	/* default loop */	1458	/* this "locks" the handlers against writing to the pipe */
		1459	/* while we modify the fd vars */
		1460	gotsig = 1;
		1461	#if EV_ASYNC_ENABLE
		1462	gotasync = 1;
		1463	#endif
1076		1464
1077	ev_ref (EV_A);	1465	ev_ref (EV_A);
1078	ev_io_stop (EV_A_ &sigev);	1466	ev_io_stop (EV_A_ &pipeev);
		1467
		1468	#if EV_USE_EVENTFD
		1469	if (evfd >= 0)
		1470	close (evfd);
		1471	#endif
		1472
		1473	if (evpipe [0] >= 0)
		1474	{
1079	close (sigpipe [0]);	1475	close (evpipe [0]);
1080	close (sigpipe [1]);	1476	close (evpipe [1]);
		1477	}
1081		1478
1082	while (pipe (sigpipe))
1083	syserr ("(libev) error creating pipe");
1084
1085	siginit (EV_A);	1479	evpipe_init (EV_A);
		1480	/* now iterate over everything, in case we missed something */
		1481	pipecb (EV_A_ &pipeev, EV_READ);
1086	}	1482	}
1087		1483
1088	postfork = 0;	1484	postfork = 0;
1089	}	1485	}
1090		1486
1091	#if EV_MULTIPLICITY	1487	#if EV_MULTIPLICITY
		1488
1092	struct ev_loop *	1489	struct ev_loop *
1093	ev_loop_new (unsigned int flags)	1490	ev_loop_new (unsigned int flags)
1094	{	1491	{
1095	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1492	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1096		1493
…		…
1112	}	1509	}
1113		1510
1114	void	1511	void
1115	ev_loop_fork (EV_P)	1512	ev_loop_fork (EV_P)
1116	{	1513	{
1117	postfork = 1;	1514	postfork = 1; /* must be in line with ev_default_fork */
1118	}	1515	}
1119		1516
		1517	#if EV_VERIFY
		1518	static void
		1519	array_check (W **ws, int cnt)
		1520	{
		1521	while (cnt--)
		1522	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1523	}
1120	#endif	1524	#endif
		1525
		1526	void
		1527	ev_loop_verify (EV_P)
		1528	{
		1529	#if EV_VERIFY
		1530	int i;
		1531
		1532	checkheap (timers, timercnt);
		1533	#if EV_PERIODIC_ENABLE
		1534	checkheap (periodics, periodiccnt);
		1535	#endif
		1536
		1537	#if EV_IDLE_ENABLE
		1538	for (i = NUMPRI; i--; )
		1539	array_check ((W **)idles [i], idlecnt [i]);
		1540	#endif
		1541	#if EV_FORK_ENABLE
		1542	array_check ((W **)forks, forkcnt);
		1543	#endif
		1544	#if EV_ASYNC_ENABLE
		1545	array_check ((W **)asyncs, asynccnt);
		1546	#endif
		1547	array_check ((W **)prepares, preparecnt);
		1548	array_check ((W **)checks, checkcnt);
		1549	#endif
		1550	}
		1551
		1552	#endif /* multiplicity */
1121		1553
1122	#if EV_MULTIPLICITY	1554	#if EV_MULTIPLICITY
1123	struct ev_loop *	1555	struct ev_loop *
1124	ev_default_loop_init (unsigned int flags)	1556	ev_default_loop_init (unsigned int flags)
1125	#else	1557	#else
1126	int	1558	int
1127	ev_default_loop (unsigned int flags)	1559	ev_default_loop (unsigned int flags)
1128	#endif	1560	#endif
1129	{	1561	{
1130	if (sigpipe [0] == sigpipe [1])
1131	if (pipe (sigpipe))
1132	return 0;
1133
1134	if (!ev_default_loop_ptr)	1562	if (!ev_default_loop_ptr)
1135	{	1563	{
1136	#if EV_MULTIPLICITY	1564	#if EV_MULTIPLICITY
1137	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1565	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1138	#else	1566	#else
…		…
1141		1569
1142	loop_init (EV_A_ flags);	1570	loop_init (EV_A_ flags);
1143		1571
1144	if (ev_backend (EV_A))	1572	if (ev_backend (EV_A))
1145	{	1573	{
1146	siginit (EV_A);
1147
1148	#ifndef _WIN32	1574	#ifndef _WIN32
1149	ev_signal_init (&childev, childcb, SIGCHLD);	1575	ev_signal_init (&childev, childcb, SIGCHLD);
1150	ev_set_priority (&childev, EV_MAXPRI);	1576	ev_set_priority (&childev, EV_MAXPRI);
1151	ev_signal_start (EV_A_ &childev);	1577	ev_signal_start (EV_A_ &childev);
1152	ev_unref (EV_A); /* child watcher should not keep loop alive */	1578	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1169	#ifndef _WIN32	1595	#ifndef _WIN32
1170	ev_ref (EV_A); /* child watcher */	1596	ev_ref (EV_A); /* child watcher */
1171	ev_signal_stop (EV_A_ &childev);	1597	ev_signal_stop (EV_A_ &childev);
1172	#endif	1598	#endif
1173		1599
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);	1600	loop_destroy (EV_A);
1181	}	1601	}
1182		1602
1183	void	1603	void
1184	ev_default_fork (void)	1604	ev_default_fork (void)
…		…
1186	#if EV_MULTIPLICITY	1606	#if EV_MULTIPLICITY
1187	struct ev_loop *loop = ev_default_loop_ptr;	1607	struct ev_loop *loop = ev_default_loop_ptr;
1188	#endif	1608	#endif
1189		1609
1190	if (backend)	1610	if (backend)
1191	postfork = 1;	1611	postfork = 1; /* must be in line with ev_loop_fork */
1192	}	1612	}
1193		1613
1194	/*****************************************************************************/	1614	/*****************************************************************************/
1195		1615
1196	void	1616	void
…		…
1213	{	1633	{
1214	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1634	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1215		1635
1216	p->w->pending = 0;	1636	p->w->pending = 0;
1217	EV_CB_INVOKE (p->w, p->events);	1637	EV_CB_INVOKE (p->w, p->events);
		1638	EV_FREQUENT_CHECK;
1218	}	1639	}
1219	}	1640	}
1220	}	1641	}
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		1642
1302	#if EV_IDLE_ENABLE	1643	#if EV_IDLE_ENABLE
1303	void inline_size	1644	void inline_size
1304	idle_reify (EV_P)	1645	idle_reify (EV_P)
1305	{	1646	{
…		…
1317	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);	1658	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1318	break;	1659	break;
1319	}	1660	}
1320	}	1661	}
1321	}	1662	}
		1663	}
		1664	#endif
		1665
		1666	void inline_size
		1667	timers_reify (EV_P)
		1668	{
		1669	EV_FREQUENT_CHECK;
		1670
		1671	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		1672	{
		1673	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1674
		1675	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
		1676
		1677	/* first reschedule or stop timer */
		1678	if (w->repeat)
		1679	{
		1680	ev_at (w) += w->repeat;
		1681	if (ev_at (w) < mn_now)
		1682	ev_at (w) = mn_now;
		1683
		1684	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1685
		1686	ANHE_at_cache (timers [HEAP0]);
		1687	downheap (timers, timercnt, HEAP0);
		1688	}
		1689	else
		1690	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1691
		1692	EV_FREQUENT_CHECK;
		1693	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
		1694	}
		1695	}
		1696
		1697	#if EV_PERIODIC_ENABLE
		1698	void inline_size
		1699	periodics_reify (EV_P)
		1700	{
		1701	EV_FREQUENT_CHECK;
		1702
		1703	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		1704	{
		1705	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1706
		1707	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
		1708
		1709	/* first reschedule or stop timer */
		1710	if (w->reschedule_cb)
		1711	{
		1712	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1713
		1714	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1715
		1716	ANHE_at_cache (periodics [HEAP0]);
		1717	downheap (periodics, periodiccnt, HEAP0);
		1718	}
		1719	else if (w->interval)
		1720	{
		1721	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1722	/* if next trigger time is not sufficiently in the future, put it there */
		1723	/* this might happen because of floating point inexactness */
		1724	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1725	{
		1726	ev_at (w) += w->interval;
		1727
		1728	/* if interval is unreasonably low we might still have a time in the past */
		1729	/* so correct this. this will make the periodic very inexact, but the user */
		1730	/* has effectively asked to get triggered more often than possible */
		1731	if (ev_at (w) < ev_rt_now)
		1732	ev_at (w) = ev_rt_now;
		1733	}
		1734
		1735	ANHE_at_cache (periodics [HEAP0]);
		1736	downheap (periodics, periodiccnt, HEAP0);
		1737	}
		1738	else
		1739	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1740
		1741	EV_FREQUENT_CHECK;
		1742	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
		1743	}
		1744	}
		1745
		1746	static void noinline
		1747	periodics_reschedule (EV_P)
		1748	{
		1749	int i;
		1750
		1751	/* adjust periodics after time jump */
		1752	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		1753	{
		1754	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
		1755
		1756	if (w->reschedule_cb)
		1757	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1758	else if (w->interval)
		1759	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1760
		1761	ANHE_at_cache (periodics [i]);
		1762	}
		1763
		1764	reheap (periodics, periodiccnt);
1322	}	1765	}
1323	#endif	1766	#endif
1324		1767
1325	void inline_speed	1768	void inline_speed
1326	time_update (EV_P_ ev_tstamp max_block)	1769	time_update (EV_P_ ev_tstamp max_block)
…		…
1355	*/	1798	*/
1356	for (i = 4; --i; )	1799	for (i = 4; --i; )
1357	{	1800	{
1358	rtmn_diff = ev_rt_now - mn_now;	1801	rtmn_diff = ev_rt_now - mn_now;
1359		1802
1360	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1803	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1361	return; /* all is well */	1804	return; /* all is well */
1362		1805
1363	ev_rt_now = ev_time ();	1806	ev_rt_now = ev_time ();
1364	mn_now = get_clock ();	1807	mn_now = get_clock ();
1365	now_floor = mn_now;	1808	now_floor = mn_now;
…		…
1381	#if EV_PERIODIC_ENABLE	1824	#if EV_PERIODIC_ENABLE
1382	periodics_reschedule (EV_A);	1825	periodics_reschedule (EV_A);
1383	#endif	1826	#endif
1384	/* adjust timers. this is easy, as the offset is the same for all of them */	1827	/* adjust timers. this is easy, as the offset is the same for all of them */
1385	for (i = 0; i < timercnt; ++i)	1828	for (i = 0; i < timercnt; ++i)
		1829	{
		1830	ANHE *he = timers + i + HEAP0;
1386	((WT)timers [i])->at += ev_rt_now - mn_now;	1831	ANHE_w (*he)->at += ev_rt_now - mn_now;
		1832	ANHE_at_cache (*he);
		1833	}
1387	}	1834	}
1388		1835
1389	mn_now = ev_rt_now;	1836	mn_now = ev_rt_now;
1390	}	1837	}
1391	}	1838	}
…		…
1405	static int loop_done;	1852	static int loop_done;
1406		1853
1407	void	1854	void
1408	ev_loop (EV_P_ int flags)	1855	ev_loop (EV_P_ int flags)
1409	{	1856	{
1410	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1857	loop_done = EVUNLOOP_CANCEL;
1411	? EVUNLOOP_ONE
1412	: EVUNLOOP_CANCEL;
1413		1858
1414	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1859	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1415		1860
1416	do	1861	do
1417	{	1862	{
		1863	#if EV_VERIFY >= 2
		1864	ev_loop_verify (EV_A);
		1865	#endif
		1866
1418	#ifndef _WIN32	1867	#ifndef _WIN32
1419	if (expect_false (curpid)) /* penalise the forking check even more */	1868	if (expect_false (curpid)) /* penalise the forking check even more */
1420	if (expect_false (getpid () != curpid))	1869	if (expect_false (getpid () != curpid))
1421	{	1870	{
1422	curpid = getpid ();	1871	curpid = getpid ();
…		…
1451	/* update fd-related kernel structures */	1900	/* update fd-related kernel structures */
1452	fd_reify (EV_A);	1901	fd_reify (EV_A);
1453		1902
1454	/* calculate blocking time */	1903	/* calculate blocking time */
1455	{	1904	{
1456	ev_tstamp block;	1905	ev_tstamp waittime = 0.;
		1906	ev_tstamp sleeptime = 0.;
1457		1907
1458	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1908	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1459	block = 0.; /* do not block at all */
1460	else
1461	{	1909	{
1462	/* update time to cancel out callback processing overhead */	1910	/* update time to cancel out callback processing overhead */
1463	time_update (EV_A_ 1e100);	1911	time_update (EV_A_ 1e100);
1464		1912
1465	block = MAX_BLOCKTIME;	1913	waittime = MAX_BLOCKTIME;
1466		1914
1467	if (timercnt)	1915	if (timercnt)
1468	{	1916	{
1469	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1917	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1470	if (block > to) block = to;	1918	if (waittime > to) waittime = to;
1471	}	1919	}
1472		1920
1473	#if EV_PERIODIC_ENABLE	1921	#if EV_PERIODIC_ENABLE
1474	if (periodiccnt)	1922	if (periodiccnt)
1475	{	1923	{
1476	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1924	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1477	if (block > to) block = to;	1925	if (waittime > to) waittime = to;
1478	}	1926	}
1479	#endif	1927	#endif
1480		1928
1481	if (expect_false (block < 0.)) block = 0.;	1929	if (expect_false (waittime < timeout_blocktime))
		1930	waittime = timeout_blocktime;
		1931
		1932	sleeptime = waittime - backend_fudge;
		1933
		1934	if (expect_true (sleeptime > io_blocktime))
		1935	sleeptime = io_blocktime;
		1936
		1937	if (sleeptime)
		1938	{
		1939	ev_sleep (sleeptime);
		1940	waittime -= sleeptime;
		1941	}
1482	}	1942	}
1483		1943
1484	++loop_count;	1944	++loop_count;
1485	backend_poll (EV_A_ block);	1945	backend_poll (EV_A_ waittime);
1486		1946
1487	/* update ev_rt_now, do magic */	1947	/* update ev_rt_now, do magic */
1488	time_update (EV_A_ block);	1948	time_update (EV_A_ waittime + sleeptime);
1489	}	1949	}
1490		1950
1491	/* queue pending timers and reschedule them */	1951	/* queue pending timers and reschedule them */
1492	timers_reify (EV_A); /* relative timers called last */	1952	timers_reify (EV_A); /* relative timers called last */
1493	#if EV_PERIODIC_ENABLE	1953	#if EV_PERIODIC_ENABLE
…		…
1502	/* queue check watchers, to be executed first */	1962	/* queue check watchers, to be executed first */
1503	if (expect_false (checkcnt))	1963	if (expect_false (checkcnt))
1504	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1964	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1505		1965
1506	call_pending (EV_A);	1966	call_pending (EV_A);
1507
1508	}	1967	}
1509	while (expect_true (activecnt && !loop_done));	1968	while (expect_true (
		1969	activecnt
		1970	&& !loop_done
		1971	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1972	));
1510		1973
1511	if (loop_done == EVUNLOOP_ONE)	1974	if (loop_done == EVUNLOOP_ONE)
1512	loop_done = EVUNLOOP_CANCEL;	1975	loop_done = EVUNLOOP_CANCEL;
1513	}	1976	}
1514		1977
…		…
1603	if (expect_false (ev_is_active (w)))	2066	if (expect_false (ev_is_active (w)))
1604	return;	2067	return;
1605		2068
1606	assert (("ev_io_start called with negative fd", fd >= 0));	2069	assert (("ev_io_start called with negative fd", fd >= 0));
1607		2070
		2071	EV_FREQUENT_CHECK;
		2072
1608	ev_start (EV_A_ (W)w, 1);	2073	ev_start (EV_A_ (W)w, 1);
1609	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2074	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1610	wlist_add (&anfds[fd].head, (WL)w);	2075	wlist_add (&anfds[fd].head, (WL)w);
1611		2076
1612	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2077	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1613	w->events &= ~EV_IOFDSET;	2078	w->events &= ~EV_IOFDSET;
		2079
		2080	EV_FREQUENT_CHECK;
1614	}	2081	}
1615		2082
1616	void noinline	2083	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	2084	ev_io_stop (EV_P_ ev_io *w)
1618	{	2085	{
1619	clear_pending (EV_A_ (W)w);	2086	clear_pending (EV_A_ (W)w);
1620	if (expect_false (!ev_is_active (w)))	2087	if (expect_false (!ev_is_active (w)))
1621	return;	2088	return;
1622		2089
1623	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2090	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2091
		2092	EV_FREQUENT_CHECK;
1624		2093
1625	wlist_del (&anfds[w->fd].head, (WL)w);	2094	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	2095	ev_stop (EV_A_ (W)w);
1627		2096
1628	fd_change (EV_A_ w->fd, 1);	2097	fd_change (EV_A_ w->fd, 1);
		2098
		2099	EV_FREQUENT_CHECK;
1629	}	2100	}
1630		2101
1631	void noinline	2102	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	2103	ev_timer_start (EV_P_ ev_timer *w)
1633	{	2104	{
1634	if (expect_false (ev_is_active (w)))	2105	if (expect_false (ev_is_active (w)))
1635	return;	2106	return;
1636		2107
1637	((WT)w)->at += mn_now;	2108	ev_at (w) += mn_now;
1638		2109
1639	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2110	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640		2111
		2112	EV_FREQUENT_CHECK;
		2113
		2114	++timercnt;
1641	ev_start (EV_A_ (W)w, ++timercnt);	2115	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1642	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2116	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1643	timers [timercnt - 1] = (WT)w;	2117	ANHE_w (timers [ev_active (w)]) = (WT)w;
1644	upheap (timers, timercnt - 1);	2118	ANHE_at_cache (timers [ev_active (w)]);
		2119	upheap (timers, ev_active (w));
1645		2120
		2121	EV_FREQUENT_CHECK;
		2122
1646	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	2123	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1647	}	2124	}
1648		2125
1649	void noinline	2126	void noinline
1650	ev_timer_stop (EV_P_ ev_timer *w)	2127	ev_timer_stop (EV_P_ ev_timer *w)
1651	{	2128	{
1652	clear_pending (EV_A_ (W)w);	2129	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	2130	if (expect_false (!ev_is_active (w)))
1654	return;	2131	return;
1655		2132
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));	2133	EV_FREQUENT_CHECK;
1657		2134
1658	{	2135	{
1659	int active = ((W)w)->active;	2136	int active = ev_active (w);
1660		2137
		2138	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2139
		2140	--timercnt;
		2141
1661	if (expect_true (--active < --timercnt))	2142	if (expect_true (active < timercnt + HEAP0))
1662	{	2143	{
1663	timers [active] = timers [timercnt];	2144	timers [active] = timers [timercnt + HEAP0];
1664	adjustheap (timers, timercnt, active);	2145	adjustheap (timers, timercnt, active);
1665	}	2146	}
1666	}	2147	}
1667		2148
1668	((WT)w)->at -= mn_now;	2149	EV_FREQUENT_CHECK;
		2150
		2151	ev_at (w) -= mn_now;
1669		2152
1670	ev_stop (EV_A_ (W)w);	2153	ev_stop (EV_A_ (W)w);
1671	}	2154	}
1672		2155
1673	void noinline	2156	void noinline
1674	ev_timer_again (EV_P_ ev_timer *w)	2157	ev_timer_again (EV_P_ ev_timer *w)
1675	{	2158	{
		2159	EV_FREQUENT_CHECK;
		2160
1676	if (ev_is_active (w))	2161	if (ev_is_active (w))
1677	{	2162	{
1678	if (w->repeat)	2163	if (w->repeat)
1679	{	2164	{
1680	((WT)w)->at = mn_now + w->repeat;	2165	ev_at (w) = mn_now + w->repeat;
		2166	ANHE_at_cache (timers [ev_active (w)]);
1681	adjustheap (timers, timercnt, ((W)w)->active - 1);	2167	adjustheap (timers, timercnt, ev_active (w));
1682	}	2168	}
1683	else	2169	else
1684	ev_timer_stop (EV_A_ w);	2170	ev_timer_stop (EV_A_ w);
1685	}	2171	}
1686	else if (w->repeat)	2172	else if (w->repeat)
1687	{	2173	{
1688	w->at = w->repeat;	2174	ev_at (w) = w->repeat;
1689	ev_timer_start (EV_A_ w);	2175	ev_timer_start (EV_A_ w);
1690	}	2176	}
		2177
		2178	EV_FREQUENT_CHECK;
1691	}	2179	}
1692		2180
1693	#if EV_PERIODIC_ENABLE	2181	#if EV_PERIODIC_ENABLE
1694	void noinline	2182	void noinline
1695	ev_periodic_start (EV_P_ ev_periodic *w)	2183	ev_periodic_start (EV_P_ ev_periodic *w)
1696	{	2184	{
1697	if (expect_false (ev_is_active (w)))	2185	if (expect_false (ev_is_active (w)))
1698	return;	2186	return;
1699		2187
1700	if (w->reschedule_cb)	2188	if (w->reschedule_cb)
1701	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2189	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1702	else if (w->interval)	2190	else if (w->interval)
1703	{	2191	{
1704	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2192	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 */	2193	/* 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;	2194	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1707	}	2195	}
1708	else	2196	else
1709	((WT)w)->at = w->offset;	2197	ev_at (w) = w->offset;
1710		2198
		2199	EV_FREQUENT_CHECK;
		2200
		2201	++periodiccnt;
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	2202	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1712	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2203	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1713	periodics [periodiccnt - 1] = (WT)w;	2204	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1714	upheap (periodics, periodiccnt - 1);	2205	ANHE_at_cache (periodics [ev_active (w)]);
		2206	upheap (periodics, ev_active (w));
1715		2207
		2208	EV_FREQUENT_CHECK;
		2209
1716	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	2210	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1717	}	2211	}
1718		2212
1719	void noinline	2213	void noinline
1720	ev_periodic_stop (EV_P_ ev_periodic *w)	2214	ev_periodic_stop (EV_P_ ev_periodic *w)
1721	{	2215	{
1722	clear_pending (EV_A_ (W)w);	2216	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	2217	if (expect_false (!ev_is_active (w)))
1724	return;	2218	return;
1725		2219
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));	2220	EV_FREQUENT_CHECK;
1727		2221
1728	{	2222	{
1729	int active = ((W)w)->active;	2223	int active = ev_active (w);
1730		2224
		2225	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2226
		2227	--periodiccnt;
		2228
1731	if (expect_true (--active < --periodiccnt))	2229	if (expect_true (active < periodiccnt + HEAP0))
1732	{	2230	{
1733	periodics [active] = periodics [periodiccnt];	2231	periodics [active] = periodics [periodiccnt + HEAP0];
1734	adjustheap (periodics, periodiccnt, active);	2232	adjustheap (periodics, periodiccnt, active);
1735	}	2233	}
1736	}	2234	}
1737		2235
		2236	EV_FREQUENT_CHECK;
		2237
1738	ev_stop (EV_A_ (W)w);	2238	ev_stop (EV_A_ (W)w);
1739	}	2239	}
1740		2240
1741	void noinline	2241	void noinline
1742	ev_periodic_again (EV_P_ ev_periodic *w)	2242	ev_periodic_again (EV_P_ ev_periodic *w)
…		…
1759	#endif	2259	#endif
1760	if (expect_false (ev_is_active (w)))	2260	if (expect_false (ev_is_active (w)))
1761	return;	2261	return;
1762		2262
1763	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2263	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		2264
		2265	evpipe_init (EV_A);
		2266
		2267	EV_FREQUENT_CHECK;
1764		2268
1765	{	2269	{
1766	#ifndef _WIN32	2270	#ifndef _WIN32
1767	sigset_t full, prev;	2271	sigset_t full, prev;
1768	sigfillset (&full);	2272	sigfillset (&full);
…		…
1780	wlist_add (&signals [w->signum - 1].head, (WL)w);	2284	wlist_add (&signals [w->signum - 1].head, (WL)w);
1781		2285
1782	if (!((WL)w)->next)	2286	if (!((WL)w)->next)
1783	{	2287	{
1784	#if _WIN32	2288	#if _WIN32
1785	signal (w->signum, sighandler);	2289	signal (w->signum, ev_sighandler);
1786	#else	2290	#else
1787	struct sigaction sa;	2291	struct sigaction sa;
1788	sa.sa_handler = sighandler;	2292	sa.sa_handler = ev_sighandler;
1789	sigfillset (&sa.sa_mask);	2293	sigfillset (&sa.sa_mask);
1790	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2294	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1791	sigaction (w->signum, &sa, 0);	2295	sigaction (w->signum, &sa, 0);
1792	#endif	2296	#endif
1793	}	2297	}
		2298
		2299	EV_FREQUENT_CHECK;
1794	}	2300	}
1795		2301
1796	void noinline	2302	void noinline
1797	ev_signal_stop (EV_P_ ev_signal *w)	2303	ev_signal_stop (EV_P_ ev_signal *w)
1798	{	2304	{
1799	clear_pending (EV_A_ (W)w);	2305	clear_pending (EV_A_ (W)w);
1800	if (expect_false (!ev_is_active (w)))	2306	if (expect_false (!ev_is_active (w)))
1801	return;	2307	return;
1802		2308
		2309	EV_FREQUENT_CHECK;
		2310
1803	wlist_del (&signals [w->signum - 1].head, (WL)w);	2311	wlist_del (&signals [w->signum - 1].head, (WL)w);
1804	ev_stop (EV_A_ (W)w);	2312	ev_stop (EV_A_ (W)w);
1805		2313
1806	if (!signals [w->signum - 1].head)	2314	if (!signals [w->signum - 1].head)
1807	signal (w->signum, SIG_DFL);	2315	signal (w->signum, SIG_DFL);
		2316
		2317	EV_FREQUENT_CHECK;
1808	}	2318	}
1809		2319
1810	void	2320	void
1811	ev_child_start (EV_P_ ev_child *w)	2321	ev_child_start (EV_P_ ev_child *w)
1812	{	2322	{
…		…
1814	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2324	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1815	#endif	2325	#endif
1816	if (expect_false (ev_is_active (w)))	2326	if (expect_false (ev_is_active (w)))
1817	return;	2327	return;
1818		2328
		2329	EV_FREQUENT_CHECK;
		2330
1819	ev_start (EV_A_ (W)w, 1);	2331	ev_start (EV_A_ (W)w, 1);
1820	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2332	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2333
		2334	EV_FREQUENT_CHECK;
1821	}	2335	}
1822		2336
1823	void	2337	void
1824	ev_child_stop (EV_P_ ev_child *w)	2338	ev_child_stop (EV_P_ ev_child *w)
1825	{	2339	{
1826	clear_pending (EV_A_ (W)w);	2340	clear_pending (EV_A_ (W)w);
1827	if (expect_false (!ev_is_active (w)))	2341	if (expect_false (!ev_is_active (w)))
1828	return;	2342	return;
1829		2343
		2344	EV_FREQUENT_CHECK;
		2345
1830	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2346	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1831	ev_stop (EV_A_ (W)w);	2347	ev_stop (EV_A_ (W)w);
		2348
		2349	EV_FREQUENT_CHECK;
1832	}	2350	}
1833		2351
1834	#if EV_STAT_ENABLE	2352	#if EV_STAT_ENABLE
1835		2353
1836	# ifdef _WIN32	2354	# ifdef _WIN32
…		…
1854	if (w->wd < 0)	2372	if (w->wd < 0)
1855	{	2373	{
1856	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2374	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1857		2375
1858	/* monitor some parent directory for speedup hints */	2376	/* monitor some parent directory for speedup hints */
		2377	/* note that exceeding the hardcoded limit is not a correctness issue, */
		2378	/* but an efficiency issue only */
1859	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2379	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1860	{	2380	{
1861	char path [4096];	2381	char path [4096];
1862	strcpy (path, w->path);	2382	strcpy (path, w->path);
1863		2383
…		…
2062	else	2582	else
2063	#endif	2583	#endif
2064	ev_timer_start (EV_A_ &w->timer);	2584	ev_timer_start (EV_A_ &w->timer);
2065		2585
2066	ev_start (EV_A_ (W)w, 1);	2586	ev_start (EV_A_ (W)w, 1);
		2587
		2588	EV_FREQUENT_CHECK;
2067	}	2589	}
2068		2590
2069	void	2591	void
2070	ev_stat_stop (EV_P_ ev_stat *w)	2592	ev_stat_stop (EV_P_ ev_stat *w)
2071	{	2593	{
2072	clear_pending (EV_A_ (W)w);	2594	clear_pending (EV_A_ (W)w);
2073	if (expect_false (!ev_is_active (w)))	2595	if (expect_false (!ev_is_active (w)))
2074	return;	2596	return;
2075		2597
		2598	EV_FREQUENT_CHECK;
		2599
2076	#if EV_USE_INOTIFY	2600	#if EV_USE_INOTIFY
2077	infy_del (EV_A_ w);	2601	infy_del (EV_A_ w);
2078	#endif	2602	#endif
2079	ev_timer_stop (EV_A_ &w->timer);	2603	ev_timer_stop (EV_A_ &w->timer);
2080		2604
2081	ev_stop (EV_A_ (W)w);	2605	ev_stop (EV_A_ (W)w);
		2606
		2607	EV_FREQUENT_CHECK;
2082	}	2608	}
2083	#endif	2609	#endif
2084		2610
2085	#if EV_IDLE_ENABLE	2611	#if EV_IDLE_ENABLE
2086	void	2612	void
…		…
2088	{	2614	{
2089	if (expect_false (ev_is_active (w)))	2615	if (expect_false (ev_is_active (w)))
2090	return;	2616	return;
2091		2617
2092	pri_adjust (EV_A_ (W)w);	2618	pri_adjust (EV_A_ (W)w);
		2619
		2620	EV_FREQUENT_CHECK;
2093		2621
2094	{	2622	{
2095	int active = ++idlecnt [ABSPRI (w)];	2623	int active = ++idlecnt [ABSPRI (w)];
2096		2624
2097	++idleall;	2625	++idleall;
2098	ev_start (EV_A_ (W)w, active);	2626	ev_start (EV_A_ (W)w, active);
2099		2627
2100	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2628	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2101	idles [ABSPRI (w)][active - 1] = w;	2629	idles [ABSPRI (w)][active - 1] = w;
2102	}	2630	}
		2631
		2632	EV_FREQUENT_CHECK;
2103	}	2633	}
2104		2634
2105	void	2635	void
2106	ev_idle_stop (EV_P_ ev_idle *w)	2636	ev_idle_stop (EV_P_ ev_idle *w)
2107	{	2637	{
2108	clear_pending (EV_A_ (W)w);	2638	clear_pending (EV_A_ (W)w);
2109	if (expect_false (!ev_is_active (w)))	2639	if (expect_false (!ev_is_active (w)))
2110	return;	2640	return;
2111		2641
		2642	EV_FREQUENT_CHECK;
		2643
2112	{	2644	{
2113	int active = ((W)w)->active;	2645	int active = ev_active (w);
2114		2646
2115	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2647	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2116	((W)idles [ABSPRI (w)][active - 1])->active = active;	2648	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2117		2649
2118	ev_stop (EV_A_ (W)w);	2650	ev_stop (EV_A_ (W)w);
2119	--idleall;	2651	--idleall;
2120	}	2652	}
		2653
		2654	EV_FREQUENT_CHECK;
2121	}	2655	}
2122	#endif	2656	#endif
2123		2657
2124	void	2658	void
2125	ev_prepare_start (EV_P_ ev_prepare *w)	2659	ev_prepare_start (EV_P_ ev_prepare *w)
2126	{	2660	{
2127	if (expect_false (ev_is_active (w)))	2661	if (expect_false (ev_is_active (w)))
2128	return;	2662	return;
		2663
		2664	EV_FREQUENT_CHECK;
2129		2665
2130	ev_start (EV_A_ (W)w, ++preparecnt);	2666	ev_start (EV_A_ (W)w, ++preparecnt);
2131	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2667	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2132	prepares [preparecnt - 1] = w;	2668	prepares [preparecnt - 1] = w;
		2669
		2670	EV_FREQUENT_CHECK;
2133	}	2671	}
2134		2672
2135	void	2673	void
2136	ev_prepare_stop (EV_P_ ev_prepare *w)	2674	ev_prepare_stop (EV_P_ ev_prepare *w)
2137	{	2675	{
2138	clear_pending (EV_A_ (W)w);	2676	clear_pending (EV_A_ (W)w);
2139	if (expect_false (!ev_is_active (w)))	2677	if (expect_false (!ev_is_active (w)))
2140	return;	2678	return;
2141		2679
		2680	EV_FREQUENT_CHECK;
		2681
2142	{	2682	{
2143	int active = ((W)w)->active;	2683	int active = ev_active (w);
		2684
2144	prepares [active - 1] = prepares [--preparecnt];	2685	prepares [active - 1] = prepares [--preparecnt];
2145	((W)prepares [active - 1])->active = active;	2686	ev_active (prepares [active - 1]) = active;
2146	}	2687	}
2147		2688
2148	ev_stop (EV_A_ (W)w);	2689	ev_stop (EV_A_ (W)w);
		2690
		2691	EV_FREQUENT_CHECK;
2149	}	2692	}
2150		2693
2151	void	2694	void
2152	ev_check_start (EV_P_ ev_check *w)	2695	ev_check_start (EV_P_ ev_check *w)
2153	{	2696	{
2154	if (expect_false (ev_is_active (w)))	2697	if (expect_false (ev_is_active (w)))
2155	return;	2698	return;
		2699
		2700	EV_FREQUENT_CHECK;
2156		2701
2157	ev_start (EV_A_ (W)w, ++checkcnt);	2702	ev_start (EV_A_ (W)w, ++checkcnt);
2158	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2703	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2159	checks [checkcnt - 1] = w;	2704	checks [checkcnt - 1] = w;
		2705
		2706	EV_FREQUENT_CHECK;
2160	}	2707	}
2161		2708
2162	void	2709	void
2163	ev_check_stop (EV_P_ ev_check *w)	2710	ev_check_stop (EV_P_ ev_check *w)
2164	{	2711	{
2165	clear_pending (EV_A_ (W)w);	2712	clear_pending (EV_A_ (W)w);
2166	if (expect_false (!ev_is_active (w)))	2713	if (expect_false (!ev_is_active (w)))
2167	return;	2714	return;
2168		2715
		2716	EV_FREQUENT_CHECK;
		2717
2169	{	2718	{
2170	int active = ((W)w)->active;	2719	int active = ev_active (w);
		2720
2171	checks [active - 1] = checks [--checkcnt];	2721	checks [active - 1] = checks [--checkcnt];
2172	((W)checks [active - 1])->active = active;	2722	ev_active (checks [active - 1]) = active;
2173	}	2723	}
2174		2724
2175	ev_stop (EV_A_ (W)w);	2725	ev_stop (EV_A_ (W)w);
		2726
		2727	EV_FREQUENT_CHECK;
2176	}	2728	}
2177		2729
2178	#if EV_EMBED_ENABLE	2730	#if EV_EMBED_ENABLE
2179	void noinline	2731	void noinline
2180	ev_embed_sweep (EV_P_ ev_embed *w)	2732	ev_embed_sweep (EV_P_ ev_embed *w)
2181	{	2733	{
2182	ev_loop (w->loop, EVLOOP_NONBLOCK);	2734	ev_loop (w->other, EVLOOP_NONBLOCK);
2183	}	2735	}
2184		2736
2185	static void	2737	static void
2186	embed_cb (EV_P_ ev_io *io, int revents)	2738	embed_io_cb (EV_P_ ev_io *io, int revents)
2187	{	2739	{
2188	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2740	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2189		2741
2190	if (ev_cb (w))	2742	if (ev_cb (w))
2191	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2743	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2192	else	2744	else
2193	ev_embed_sweep (loop, w);	2745	ev_loop (w->other, EVLOOP_NONBLOCK);
2194	}	2746	}
		2747
		2748	static void
		2749	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2750	{
		2751	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2752
		2753	{
		2754	struct ev_loop *loop = w->other;
		2755
		2756	while (fdchangecnt)
		2757	{
		2758	fd_reify (EV_A);
		2759	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2760	}
		2761	}
		2762	}
		2763
		2764	#if 0
		2765	static void
		2766	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2767	{
		2768	ev_idle_stop (EV_A_ idle);
		2769	}
		2770	#endif
2195		2771
2196	void	2772	void
2197	ev_embed_start (EV_P_ ev_embed *w)	2773	ev_embed_start (EV_P_ ev_embed *w)
2198	{	2774	{
2199	if (expect_false (ev_is_active (w)))	2775	if (expect_false (ev_is_active (w)))
2200	return;	2776	return;
2201		2777
2202	{	2778	{
2203	struct ev_loop *loop = w->loop;	2779	struct ev_loop *loop = w->other;
2204	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2780	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2205	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2781	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2206	}	2782	}
		2783
		2784	EV_FREQUENT_CHECK;
2207		2785
2208	ev_set_priority (&w->io, ev_priority (w));	2786	ev_set_priority (&w->io, ev_priority (w));
2209	ev_io_start (EV_A_ &w->io);	2787	ev_io_start (EV_A_ &w->io);
2210		2788
		2789	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2790	ev_set_priority (&w->prepare, EV_MINPRI);
		2791	ev_prepare_start (EV_A_ &w->prepare);
		2792
		2793	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2794
2211	ev_start (EV_A_ (W)w, 1);	2795	ev_start (EV_A_ (W)w, 1);
		2796
		2797	EV_FREQUENT_CHECK;
2212	}	2798	}
2213		2799
2214	void	2800	void
2215	ev_embed_stop (EV_P_ ev_embed *w)	2801	ev_embed_stop (EV_P_ ev_embed *w)
2216	{	2802	{
2217	clear_pending (EV_A_ (W)w);	2803	clear_pending (EV_A_ (W)w);
2218	if (expect_false (!ev_is_active (w)))	2804	if (expect_false (!ev_is_active (w)))
2219	return;	2805	return;
2220		2806
		2807	EV_FREQUENT_CHECK;
		2808
2221	ev_io_stop (EV_A_ &w->io);	2809	ev_io_stop (EV_A_ &w->io);
		2810	ev_prepare_stop (EV_A_ &w->prepare);
2222		2811
2223	ev_stop (EV_A_ (W)w);	2812	ev_stop (EV_A_ (W)w);
		2813
		2814	EV_FREQUENT_CHECK;
2224	}	2815	}
2225	#endif	2816	#endif
2226		2817
2227	#if EV_FORK_ENABLE	2818	#if EV_FORK_ENABLE
2228	void	2819	void
2229	ev_fork_start (EV_P_ ev_fork *w)	2820	ev_fork_start (EV_P_ ev_fork *w)
2230	{	2821	{
2231	if (expect_false (ev_is_active (w)))	2822	if (expect_false (ev_is_active (w)))
2232	return;	2823	return;
		2824
		2825	EV_FREQUENT_CHECK;
2233		2826
2234	ev_start (EV_A_ (W)w, ++forkcnt);	2827	ev_start (EV_A_ (W)w, ++forkcnt);
2235	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2828	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2236	forks [forkcnt - 1] = w;	2829	forks [forkcnt - 1] = w;
		2830
		2831	EV_FREQUENT_CHECK;
2237	}	2832	}
2238		2833
2239	void	2834	void
2240	ev_fork_stop (EV_P_ ev_fork *w)	2835	ev_fork_stop (EV_P_ ev_fork *w)
2241	{	2836	{
2242	clear_pending (EV_A_ (W)w);	2837	clear_pending (EV_A_ (W)w);
2243	if (expect_false (!ev_is_active (w)))	2838	if (expect_false (!ev_is_active (w)))
2244	return;	2839	return;
2245		2840
		2841	EV_FREQUENT_CHECK;
		2842
2246	{	2843	{
2247	int active = ((W)w)->active;	2844	int active = ev_active (w);
		2845
2248	forks [active - 1] = forks [--forkcnt];	2846	forks [active - 1] = forks [--forkcnt];
2249	((W)forks [active - 1])->active = active;	2847	ev_active (forks [active - 1]) = active;
2250	}	2848	}
2251		2849
2252	ev_stop (EV_A_ (W)w);	2850	ev_stop (EV_A_ (W)w);
		2851
		2852	EV_FREQUENT_CHECK;
		2853	}
		2854	#endif
		2855
		2856	#if EV_ASYNC_ENABLE
		2857	void
		2858	ev_async_start (EV_P_ ev_async *w)
		2859	{
		2860	if (expect_false (ev_is_active (w)))
		2861	return;
		2862
		2863	evpipe_init (EV_A);
		2864
		2865	EV_FREQUENT_CHECK;
		2866
		2867	ev_start (EV_A_ (W)w, ++asynccnt);
		2868	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2869	asyncs [asynccnt - 1] = w;
		2870
		2871	EV_FREQUENT_CHECK;
		2872	}
		2873
		2874	void
		2875	ev_async_stop (EV_P_ ev_async *w)
		2876	{
		2877	clear_pending (EV_A_ (W)w);
		2878	if (expect_false (!ev_is_active (w)))
		2879	return;
		2880
		2881	EV_FREQUENT_CHECK;
		2882
		2883	{
		2884	int active = ev_active (w);
		2885
		2886	asyncs [active - 1] = asyncs [--asynccnt];
		2887	ev_active (asyncs [active - 1]) = active;
		2888	}
		2889
		2890	ev_stop (EV_A_ (W)w);
		2891
		2892	EV_FREQUENT_CHECK;
		2893	}
		2894
		2895	void
		2896	ev_async_send (EV_P_ ev_async *w)
		2897	{
		2898	w->sent = 1;
		2899	evpipe_write (EV_A_ &gotasync);
2253	}	2900	}
2254	#endif	2901	#endif
2255		2902
2256	/*****************************************************************************/	2903	/*****************************************************************************/
2257		2904
…		…
2315	ev_timer_set (&once->to, timeout, 0.);	2962	ev_timer_set (&once->to, timeout, 0.);
2316	ev_timer_start (EV_A_ &once->to);	2963	ev_timer_start (EV_A_ &once->to);
2317	}	2964	}
2318	}	2965	}
2319		2966
		2967	#if EV_MULTIPLICITY
		2968	#include "ev_wrap.h"
		2969	#endif
		2970
2320	#ifdef __cplusplus	2971	#ifdef __cplusplus
2321	}	2972	}
2322	#endif	2973	#endif
2323		2974

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