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Comparing libev/ev.c (file contents):
Revision 1.171 by root, Sun Dec 9 02:12:43 2007 UTC vs.
Revision 1.232 by root, Tue May 6 15:29:58 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	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		241
197	#ifndef CLOCK_MONOTONIC	242	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	243	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	244	# define EV_USE_MONOTONIC 0
200	#endif	245	#endif
…		…
202	#ifndef CLOCK_REALTIME	247	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	248	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	249	# define EV_USE_REALTIME 0
205	#endif	250	#endif
206		251
		252	#if !EV_STAT_ENABLE
		253	# undef EV_USE_INOTIFY
		254	# define EV_USE_INOTIFY 0
		255	#endif
		256
		257	#if !EV_USE_NANOSLEEP
		258	# ifndef _WIN32
		259	# include <sys/select.h>
		260	# endif
		261	#endif
		262
		263	#if EV_USE_INOTIFY
		264	# include <sys/inotify.h>
		265	#endif
		266
207	#if EV_SELECT_IS_WINSOCKET	267	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	268	# include <winsock.h>
209	#endif	269	#endif
210		270
211	#if !EV_STAT_ENABLE	271	#if EV_USE_EVENTFD
212	# define EV_USE_INOTIFY 0	272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		273	# include <stdint.h>
		274	# ifdef __cplusplus
		275	extern "C" {
213	#endif	276	# endif
214		277	int eventfd (unsigned int initval, int flags);
215	#if EV_USE_INOTIFY	278	# ifdef __cplusplus
216	# include <sys/inotify.h>	279	}
		280	# endif
217	#endif	281	#endif
218		282
219	/**/	283	/**/
		284
		285	/*
		286	* This is used to avoid floating point rounding problems.
		287	* It is added to ev_rt_now when scheduling periodics
		288	* to ensure progress, time-wise, even when rounding
		289	* errors are against us.
		290	* This value is good at least till the year 4000.
		291	* Better solutions welcome.
		292	*/
		293	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		294
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	295	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	296	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	297	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
224		298
225	#if __GNUC__ >= 3	299	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	300	# define expect(expr,value) __builtin_expect ((expr),(value))
227	# define noinline __attribute__ ((noinline))	301	# define noinline __attribute__ ((noinline))
228	#else	302	#else
229	# define expect(expr,value) (expr)	303	# define expect(expr,value) (expr)
230	# define noinline	304	# define noinline
231	# if __STDC_VERSION__ < 199901L	305	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
232	# define inline	306	# define inline
233	# endif	307	# endif
234	#endif	308	#endif
235		309
236	#define expect_false(expr) expect ((expr) != 0, 0)	310	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
251		325
252	typedef ev_watcher *W;	326	typedef ev_watcher *W;
253	typedef ev_watcher_list *WL;	327	typedef ev_watcher_list *WL;
254	typedef ev_watcher_time *WT;	328	typedef ev_watcher_time *WT;
255		329
		330	#define ev_active(w) ((W)(w))->active
		331	#define ev_at(w) ((WT)(w))->at
		332
		333	#if EV_USE_MONOTONIC
		334	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		335	/* giving it a reasonably high chance of working on typical architetcures */
256	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	336	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		337	#endif
257		338
258	#ifdef _WIN32	339	#ifdef _WIN32
259	# include "ev_win32.c"	340	# include "ev_win32.c"
260	#endif	341	#endif
261		342
…		…
282	perror (msg);	363	perror (msg);
283	abort ();	364	abort ();
284	}	365	}
285	}	366	}
286		367
		368	static void *
		369	ev_realloc_emul (void *ptr, long size)
		370	{
		371	/* some systems, notably openbsd and darwin, fail to properly
		372	* implement realloc (x, 0) (as required by both ansi c-98 and
		373	* the single unix specification, so work around them here.
		374	*/
		375
		376	if (size)
		377	return realloc (ptr, size);
		378
		379	free (ptr);
		380	return 0;
		381	}
		382
287	static void *(*alloc)(void *ptr, long size);	383	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
288		384
289	void	385	void
290	ev_set_allocator (void *(*cb)(void *ptr, long size))	386	ev_set_allocator (void *(*cb)(void *ptr, long size))
291	{	387	{
292	alloc = cb;	388	alloc = cb;
293	}	389	}
294		390
295	inline_speed void *	391	inline_speed void *
296	ev_realloc (void *ptr, long size)	392	ev_realloc (void *ptr, long size)
297	{	393	{
298	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	394	ptr = alloc (ptr, size);
299		395
300	if (!ptr && size)	396	if (!ptr && size)
301	{	397	{
302	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	398	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
303	abort ();	399	abort ();
…		…
397	{	493	{
398	return ev_rt_now;	494	return ev_rt_now;
399	}	495	}
400	#endif	496	#endif
401		497
		498	void
		499	ev_sleep (ev_tstamp delay)
		500	{
		501	if (delay > 0.)
		502	{
		503	#if EV_USE_NANOSLEEP
		504	struct timespec ts;
		505
		506	ts.tv_sec = (time_t)delay;
		507	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		508
		509	nanosleep (&ts, 0);
		510	#elif defined(_WIN32)
		511	Sleep ((unsigned long)(delay * 1e3));
		512	#else
		513	struct timeval tv;
		514
		515	tv.tv_sec = (time_t)delay;
		516	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		517
		518	select (0, 0, 0, 0, &tv);
		519	#endif
		520	}
		521	}
		522
		523	/*****************************************************************************/
		524
		525	#define MALLOC_ROUND 4096 // prefer to allocate in chunks of this size, must be 2**n and >> 4 longs
		526
402	int inline_size	527	int inline_size
403	array_nextsize (int elem, int cur, int cnt)	528	array_nextsize (int elem, int cur, int cnt)
404	{	529	{
405	int ncur = cur + 1;	530	int ncur = cur + 1;
406		531
407	do	532	do
408	ncur <<= 1;	533	ncur <<= 1;
409	while (cnt > ncur);	534	while (cnt > ncur);
410		535
411	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */	536	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
412	if (elem * ncur > 4096)	537	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
413	{	538	{
414	ncur *= elem;	539	ncur *= elem;
415	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;	540	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
416	ncur = ncur - sizeof (void *) * 4;	541	ncur = ncur - sizeof (void *) * 4;
417	ncur /= elem;	542	ncur /= elem;
418	}	543	}
419		544
420	return ncur;	545	return ncur;
…		…
466	pendings [pri][w_->pending - 1].w = w_;	591	pendings [pri][w_->pending - 1].w = w_;
467	pendings [pri][w_->pending - 1].events = revents;	592	pendings [pri][w_->pending - 1].events = revents;
468	}	593	}
469	}	594	}
470		595
471	void inline_size	596	void inline_speed
472	queue_events (EV_P_ W *events, int eventcnt, int type)	597	queue_events (EV_P_ W *events, int eventcnt, int type)
473	{	598	{
474	int i;	599	int i;
475		600
476	for (i = 0; i < eventcnt; ++i)	601	for (i = 0; i < eventcnt; ++i)
…		…
523	{	648	{
524	int fd = fdchanges [i];	649	int fd = fdchanges [i];
525	ANFD *anfd = anfds + fd;	650	ANFD *anfd = anfds + fd;
526	ev_io *w;	651	ev_io *w;
527		652
528	int events = 0;	653	unsigned char events = 0;
529		654
530	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	655	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
531	events |= w->events;	656	events |= (unsigned char)w->events;
532		657
533	#if EV_SELECT_IS_WINSOCKET	658	#if EV_SELECT_IS_WINSOCKET
534	if (events)	659	if (events)
535	{	660	{
536	unsigned long argp;	661	unsigned long argp;
		662	#ifdef EV_FD_TO_WIN32_HANDLE
		663	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		664	#else
537	anfd->handle = _get_osfhandle (fd);	665	anfd->handle = _get_osfhandle (fd);
		666	#endif
538	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	667	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
539	}	668	}
540	#endif	669	#endif
541		670
		671	{
		672	unsigned char o_events = anfd->events;
		673	unsigned char o_reify = anfd->reify;
		674
542	anfd->reify = 0;	675	anfd->reify = 0;
543
544	backend_modify (EV_A_ fd, anfd->events, events);
545	anfd->events = events;	676	anfd->events = events;
		677
		678	if (o_events != events || o_reify & EV_IOFDSET)
		679	backend_modify (EV_A_ fd, o_events, events);
		680	}
546	}	681	}
547		682
548	fdchangecnt = 0;	683	fdchangecnt = 0;
549	}	684	}
550		685
551	void inline_size	686	void inline_size
552	fd_change (EV_P_ int fd)	687	fd_change (EV_P_ int fd, int flags)
553	{	688	{
554	if (expect_false (anfds [fd].reify))	689	unsigned char reify = anfds [fd].reify;
555	return;
556
557	anfds [fd].reify = 1;	690	anfds [fd].reify |= flags;
558		691
		692	if (expect_true (!reify))
		693	{
559	++fdchangecnt;	694	++fdchangecnt;
560	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	695	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
561	fdchanges [fdchangecnt - 1] = fd;	696	fdchanges [fdchangecnt - 1] = fd;
		697	}
562	}	698	}
563		699
564	void inline_speed	700	void inline_speed
565	fd_kill (EV_P_ int fd)	701	fd_kill (EV_P_ int fd)
566	{	702	{
…		…
617		753
618	for (fd = 0; fd < anfdmax; ++fd)	754	for (fd = 0; fd < anfdmax; ++fd)
619	if (anfds [fd].events)	755	if (anfds [fd].events)
620	{	756	{
621	anfds [fd].events = 0;	757	anfds [fd].events = 0;
622	fd_change (EV_A_ fd);	758	fd_change (EV_A_ fd, EV_IOFDSET | 1);
623	}	759	}
624	}	760	}
625		761
626	/*****************************************************************************/	762	/*****************************************************************************/
627		763
		764	/* towards the root */
628	void inline_speed	765	void inline_speed
629	upheap (WT *heap, int k)	766	upheap (WT *heap, int k)
630	{	767	{
631	WT w = heap [k];	768	WT w = heap [k];
632		769
633	while (k && heap [k >> 1]->at > w->at)	770	for (;;)
634	{	771	{
		772	int p = k >> 1;
		773
		774	/* maybe we could use a dummy element at heap [0]? */
		775	if (!p || heap [p]->at <= w->at)
		776	break;
		777
635	heap [k] = heap [k >> 1];	778	heap [k] = heap [p];
636	((W)heap [k])->active = k + 1;	779	ev_active (heap [k]) = k;
637	k >>= 1;	780	k = p;
638	}	781	}
639		782
640	heap [k] = w;	783	heap [k] = w;
641	((W)heap [k])->active = k + 1;	784	ev_active (heap [k]) = k;
642
643	}	785	}
644		786
		787	/* away from the root */
645	void inline_speed	788	void inline_speed
646	downheap (WT *heap, int N, int k)	789	downheap (WT *heap, int N, int k)
647	{	790	{
648	WT w = heap [k];	791	WT w = heap [k];
649		792
650	while (k < (N >> 1))	793	for (;;)
651	{	794	{
652	int j = k << 1;	795	int c = k << 1;
653		796
654	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	797	if (c > N)
655	++j;
656
657	if (w->at <= heap [j]->at)
658	break;	798	break;
659		799
		800	c += c < N && heap [c]->at > heap [c + 1]->at
		801	? 1 : 0;
		802
		803	if (w->at <= heap [c]->at)
		804	break;
		805
660	heap [k] = heap [j];	806	heap [k] = heap [c];
661	((W)heap [k])->active = k + 1;	807	ev_active (heap [k]) = k;
		808
662	k = j;	809	k = c;
663	}	810	}
664		811
665	heap [k] = w;	812	heap [k] = w;
666	((W)heap [k])->active = k + 1;	813	ev_active (heap [k]) = k;
667	}	814	}
668		815
669	void inline_size	816	void inline_size
670	adjustheap (WT *heap, int N, int k)	817	adjustheap (WT *heap, int N, int k)
671	{	818	{
…		…
676	/*****************************************************************************/	823	/*****************************************************************************/
677		824
678	typedef struct	825	typedef struct
679	{	826	{
680	WL head;	827	WL head;
681	sig_atomic_t volatile gotsig;	828	EV_ATOMIC_T gotsig;
682	} ANSIG;	829	} ANSIG;
683		830
684	static ANSIG *signals;	831	static ANSIG *signals;
685	static int signalmax;	832	static int signalmax;
686		833
687	static int sigpipe [2];	834	static EV_ATOMIC_T gotsig;
688	static sig_atomic_t volatile gotsig;
689	static ev_io sigev;
690		835
691	void inline_size	836	void inline_size
692	signals_init (ANSIG *base, int count)	837	signals_init (ANSIG *base, int count)
693	{	838	{
694	while (count--)	839	while (count--)
…		…
698		843
699	++base;	844	++base;
700	}	845	}
701	}	846	}
702		847
703	static void	848	/*****************************************************************************/
704	sighandler (int signum)
705	{
706	#if _WIN32
707	signal (signum, sighandler);
708	#endif
709
710	signals [signum - 1].gotsig = 1;
711
712	if (!gotsig)
713	{
714	int old_errno = errno;
715	gotsig = 1;
716	write (sigpipe [1], &signum, 1);
717	errno = old_errno;
718	}
719	}
720
721	void noinline
722	ev_feed_signal_event (EV_P_ int signum)
723	{
724	WL w;
725
726	#if EV_MULTIPLICITY
727	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
728	#endif
729
730	--signum;
731
732	if (signum < 0 || signum >= signalmax)
733	return;
734
735	signals [signum].gotsig = 0;
736
737	for (w = signals [signum].head; w; w = w->next)
738	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
739	}
740
741	static void
742	sigcb (EV_P_ ev_io *iow, int revents)
743	{
744	int signum;
745
746	read (sigpipe [0], &revents, 1);
747	gotsig = 0;
748
749	for (signum = signalmax; signum--; )
750	if (signals [signum].gotsig)
751	ev_feed_signal_event (EV_A_ signum + 1);
752	}
753		849
754	void inline_speed	850	void inline_speed
755	fd_intern (int fd)	851	fd_intern (int fd)
756	{	852	{
757	#ifdef _WIN32	853	#ifdef _WIN32
…		…
762	fcntl (fd, F_SETFL, O_NONBLOCK);	858	fcntl (fd, F_SETFL, O_NONBLOCK);
763	#endif	859	#endif
764	}	860	}
765		861
766	static void noinline	862	static void noinline
767	siginit (EV_P)	863	evpipe_init (EV_P)
768	{	864	{
		865	if (!ev_is_active (&pipeev))
		866	{
		867	#if EV_USE_EVENTFD
		868	if ((evfd = eventfd (0, 0)) >= 0)
		869	{
		870	evpipe [0] = -1;
		871	fd_intern (evfd);
		872	ev_io_set (&pipeev, evfd, EV_READ);
		873	}
		874	else
		875	#endif
		876	{
		877	while (pipe (evpipe))
		878	syserr ("(libev) error creating signal/async pipe");
		879
769	fd_intern (sigpipe [0]);	880	fd_intern (evpipe [0]);
770	fd_intern (sigpipe [1]);	881	fd_intern (evpipe [1]);
		882	ev_io_set (&pipeev, evpipe [0], EV_READ);
		883	}
771		884
772	ev_io_set (&sigev, sigpipe [0], EV_READ);
773	ev_io_start (EV_A_ &sigev);	885	ev_io_start (EV_A_ &pipeev);
774	ev_unref (EV_A); /* child watcher should not keep loop alive */	886	ev_unref (EV_A); /* watcher should not keep loop alive */
		887	}
		888	}
		889
		890	void inline_size
		891	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		892	{
		893	if (!*flag)
		894	{
		895	int old_errno = errno; /* save errno because write might clobber it */
		896
		897	*flag = 1;
		898
		899	#if EV_USE_EVENTFD
		900	if (evfd >= 0)
		901	{
		902	uint64_t counter = 1;
		903	write (evfd, &counter, sizeof (uint64_t));
		904	}
		905	else
		906	#endif
		907	write (evpipe [1], &old_errno, 1);
		908
		909	errno = old_errno;
		910	}
		911	}
		912
		913	static void
		914	pipecb (EV_P_ ev_io *iow, int revents)
		915	{
		916	#if EV_USE_EVENTFD
		917	if (evfd >= 0)
		918	{
		919	uint64_t counter;
		920	read (evfd, &counter, sizeof (uint64_t));
		921	}
		922	else
		923	#endif
		924	{
		925	char dummy;
		926	read (evpipe [0], &dummy, 1);
		927	}
		928
		929	if (gotsig && ev_is_default_loop (EV_A))
		930	{
		931	int signum;
		932	gotsig = 0;
		933
		934	for (signum = signalmax; signum--; )
		935	if (signals [signum].gotsig)
		936	ev_feed_signal_event (EV_A_ signum + 1);
		937	}
		938
		939	#if EV_ASYNC_ENABLE
		940	if (gotasync)
		941	{
		942	int i;
		943	gotasync = 0;
		944
		945	for (i = asynccnt; i--; )
		946	if (asyncs [i]->sent)
		947	{
		948	asyncs [i]->sent = 0;
		949	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		950	}
		951	}
		952	#endif
775	}	953	}
776		954
777	/*****************************************************************************/	955	/*****************************************************************************/
778		956
		957	static void
		958	ev_sighandler (int signum)
		959	{
		960	#if EV_MULTIPLICITY
		961	struct ev_loop *loop = &default_loop_struct;
		962	#endif
		963
		964	#if _WIN32
		965	signal (signum, ev_sighandler);
		966	#endif
		967
		968	signals [signum - 1].gotsig = 1;
		969	evpipe_write (EV_A_ &gotsig);
		970	}
		971
		972	void noinline
		973	ev_feed_signal_event (EV_P_ int signum)
		974	{
		975	WL w;
		976
		977	#if EV_MULTIPLICITY
		978	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		979	#endif
		980
		981	--signum;
		982
		983	if (signum < 0 || signum >= signalmax)
		984	return;
		985
		986	signals [signum].gotsig = 0;
		987
		988	for (w = signals [signum].head; w; w = w->next)
		989	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		990	}
		991
		992	/*****************************************************************************/
		993
779	static ev_child *childs [EV_PID_HASHSIZE];	994	static WL childs [EV_PID_HASHSIZE];
780		995
781	#ifndef _WIN32	996	#ifndef _WIN32
782		997
783	static ev_signal childev;	998	static ev_signal childev;
784		999
		1000	#ifndef WIFCONTINUED
		1001	# define WIFCONTINUED(status) 0
		1002	#endif
		1003
785	void inline_speed	1004	void inline_speed
786	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1005	child_reap (EV_P_ int chain, int pid, int status)
787	{	1006	{
788	ev_child *w;	1007	ev_child *w;
		1008	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
789		1009
790	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1010	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1011	{
791	if (w->pid == pid || !w->pid)	1012	if ((w->pid == pid || !w->pid)
		1013	&& (!traced || (w->flags & 1)))
792	{	1014	{
793	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	1015	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
794	w->rpid = pid;	1016	w->rpid = pid;
795	w->rstatus = status;	1017	w->rstatus = status;
796	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1018	ev_feed_event (EV_A_ (W)w, EV_CHILD);
797	}	1019	}
		1020	}
798	}	1021	}
799		1022
800	#ifndef WCONTINUED	1023	#ifndef WCONTINUED
801	# define WCONTINUED 0	1024	# define WCONTINUED 0
802	#endif	1025	#endif
…		…
811	if (!WCONTINUED	1034	if (!WCONTINUED
812	|| errno != EINVAL	1035	|| errno != EINVAL
813	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1036	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
814	return;	1037	return;
815		1038
816	/* make sure we are called again until all childs have been reaped */	1039	/* make sure we are called again until all children have been reaped */
817	/* we need to do it this way so that the callback gets called before we continue */	1040	/* we need to do it this way so that the callback gets called before we continue */
818	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1041	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
819		1042
820	child_reap (EV_A_ sw, pid, pid, status);	1043	child_reap (EV_A_ pid, pid, status);
821	if (EV_PID_HASHSIZE > 1)	1044	if (EV_PID_HASHSIZE > 1)
822	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1045	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
823	}	1046	}
824		1047
825	#endif	1048	#endif
826		1049
827	/*****************************************************************************/	1050	/*****************************************************************************/
…		…
899	}	1122	}
900		1123
901	unsigned int	1124	unsigned int
902	ev_embeddable_backends (void)	1125	ev_embeddable_backends (void)
903	{	1126	{
904	return EVBACKEND_EPOLL	1127	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
905	| EVBACKEND_KQUEUE	1128
906	| EVBACKEND_PORT;	1129	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1130	/* please fix it and tell me how to detect the fix */
		1131	flags &= ~EVBACKEND_EPOLL;
		1132
		1133	return flags;
907	}	1134	}
908		1135
909	unsigned int	1136	unsigned int
910	ev_backend (EV_P)	1137	ev_backend (EV_P)
911	{	1138	{
…		…
914		1141
915	unsigned int	1142	unsigned int
916	ev_loop_count (EV_P)	1143	ev_loop_count (EV_P)
917	{	1144	{
918	return loop_count;	1145	return loop_count;
		1146	}
		1147
		1148	void
		1149	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1150	{
		1151	io_blocktime = interval;
		1152	}
		1153
		1154	void
		1155	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1156	{
		1157	timeout_blocktime = interval;
919	}	1158	}
920		1159
921	static void noinline	1160	static void noinline
922	loop_init (EV_P_ unsigned int flags)	1161	loop_init (EV_P_ unsigned int flags)
923	{	1162	{
…		…
929	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1168	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
930	have_monotonic = 1;	1169	have_monotonic = 1;
931	}	1170	}
932	#endif	1171	#endif
933		1172
934	ev_rt_now = ev_time ();	1173	ev_rt_now = ev_time ();
935	mn_now = get_clock ();	1174	mn_now = get_clock ();
936	now_floor = mn_now;	1175	now_floor = mn_now;
937	rtmn_diff = ev_rt_now - mn_now;	1176	rtmn_diff = ev_rt_now - mn_now;
		1177
		1178	io_blocktime = 0.;
		1179	timeout_blocktime = 0.;
		1180	backend = 0;
		1181	backend_fd = -1;
		1182	gotasync = 0;
		1183	#if EV_USE_INOTIFY
		1184	fs_fd = -2;
		1185	#endif
938		1186
939	/* pid check not overridable via env */	1187	/* pid check not overridable via env */
940	#ifndef _WIN32	1188	#ifndef _WIN32
941	if (flags & EVFLAG_FORKCHECK)	1189	if (flags & EVFLAG_FORKCHECK)
942	curpid = getpid ();	1190	curpid = getpid ();
…		…
945	if (!(flags & EVFLAG_NOENV)	1193	if (!(flags & EVFLAG_NOENV)
946	&& !enable_secure ()	1194	&& !enable_secure ()
947	&& getenv ("LIBEV_FLAGS"))	1195	&& getenv ("LIBEV_FLAGS"))
948	flags = atoi (getenv ("LIBEV_FLAGS"));	1196	flags = atoi (getenv ("LIBEV_FLAGS"));
949		1197
950	if (!(flags & 0x0000ffffUL))	1198	if (!(flags & 0x0000ffffU))
951	flags |= ev_recommended_backends ();	1199	flags |= ev_recommended_backends ();
952
953	backend = 0;
954	backend_fd = -1;
955	#if EV_USE_INOTIFY
956	fs_fd = -2;
957	#endif
958		1200
959	#if EV_USE_PORT	1201	#if EV_USE_PORT
960	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1202	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
961	#endif	1203	#endif
962	#if EV_USE_KQUEUE	1204	#if EV_USE_KQUEUE
…		…
970	#endif	1212	#endif
971	#if EV_USE_SELECT	1213	#if EV_USE_SELECT
972	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1214	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
973	#endif	1215	#endif
974		1216
975	ev_init (&sigev, sigcb);	1217	ev_init (&pipeev, pipecb);
976	ev_set_priority (&sigev, EV_MAXPRI);	1218	ev_set_priority (&pipeev, EV_MAXPRI);
977	}	1219	}
978	}	1220	}
979		1221
980	static void noinline	1222	static void noinline
981	loop_destroy (EV_P)	1223	loop_destroy (EV_P)
982	{	1224	{
983	int i;	1225	int i;
		1226
		1227	if (ev_is_active (&pipeev))
		1228	{
		1229	ev_ref (EV_A); /* signal watcher */
		1230	ev_io_stop (EV_A_ &pipeev);
		1231
		1232	#if EV_USE_EVENTFD
		1233	if (evfd >= 0)
		1234	close (evfd);
		1235	#endif
		1236
		1237	if (evpipe [0] >= 0)
		1238	{
		1239	close (evpipe [0]);
		1240	close (evpipe [1]);
		1241	}
		1242	}
984		1243
985	#if EV_USE_INOTIFY	1244	#if EV_USE_INOTIFY
986	if (fs_fd >= 0)	1245	if (fs_fd >= 0)
987	close (fs_fd);	1246	close (fs_fd);
988	#endif	1247	#endif
…		…
1011	array_free (pending, [i]);	1270	array_free (pending, [i]);
1012	#if EV_IDLE_ENABLE	1271	#if EV_IDLE_ENABLE
1013	array_free (idle, [i]);	1272	array_free (idle, [i]);
1014	#endif	1273	#endif
1015	}	1274	}
		1275
		1276	ev_free (anfds); anfdmax = 0;
1016		1277
1017	/* have to use the microsoft-never-gets-it-right macro */	1278	/* have to use the microsoft-never-gets-it-right macro */
1018	array_free (fdchange, EMPTY);	1279	array_free (fdchange, EMPTY);
1019	array_free (timer, EMPTY);	1280	array_free (timer, EMPTY);
1020	#if EV_PERIODIC_ENABLE	1281	#if EV_PERIODIC_ENABLE
1021	array_free (periodic, EMPTY);	1282	array_free (periodic, EMPTY);
1022	#endif	1283	#endif
		1284	#if EV_FORK_ENABLE
		1285	array_free (fork, EMPTY);
		1286	#endif
1023	array_free (prepare, EMPTY);	1287	array_free (prepare, EMPTY);
1024	array_free (check, EMPTY);	1288	array_free (check, EMPTY);
		1289	#if EV_ASYNC_ENABLE
		1290	array_free (async, EMPTY);
		1291	#endif
1025		1292
1026	backend = 0;	1293	backend = 0;
1027	}	1294	}
1028		1295
		1296	#if EV_USE_INOTIFY
1029	void inline_size infy_fork (EV_P);	1297	void inline_size infy_fork (EV_P);
		1298	#endif
1030		1299
1031	void inline_size	1300	void inline_size
1032	loop_fork (EV_P)	1301	loop_fork (EV_P)
1033	{	1302	{
1034	#if EV_USE_PORT	1303	#if EV_USE_PORT
…		…
1042	#endif	1311	#endif
1043	#if EV_USE_INOTIFY	1312	#if EV_USE_INOTIFY
1044	infy_fork (EV_A);	1313	infy_fork (EV_A);
1045	#endif	1314	#endif
1046		1315
1047	if (ev_is_active (&sigev))	1316	if (ev_is_active (&pipeev))
1048	{	1317	{
1049	/* default loop */	1318	/* this "locks" the handlers against writing to the pipe */
		1319	/* while we modify the fd vars */
		1320	gotsig = 1;
		1321	#if EV_ASYNC_ENABLE
		1322	gotasync = 1;
		1323	#endif
1050		1324
1051	ev_ref (EV_A);	1325	ev_ref (EV_A);
1052	ev_io_stop (EV_A_ &sigev);	1326	ev_io_stop (EV_A_ &pipeev);
		1327
		1328	#if EV_USE_EVENTFD
		1329	if (evfd >= 0)
		1330	close (evfd);
		1331	#endif
		1332
		1333	if (evpipe [0] >= 0)
		1334	{
1053	close (sigpipe [0]);	1335	close (evpipe [0]);
1054	close (sigpipe [1]);	1336	close (evpipe [1]);
		1337	}
1055		1338
1056	while (pipe (sigpipe))
1057	syserr ("(libev) error creating pipe");
1058
1059	siginit (EV_A);	1339	evpipe_init (EV_A);
		1340	/* now iterate over everything, in case we missed something */
		1341	pipecb (EV_A_ &pipeev, EV_READ);
1060	}	1342	}
1061		1343
1062	postfork = 0;	1344	postfork = 0;
1063	}	1345	}
1064		1346
…		…
1086	}	1368	}
1087		1369
1088	void	1370	void
1089	ev_loop_fork (EV_P)	1371	ev_loop_fork (EV_P)
1090	{	1372	{
1091	postfork = 1;	1373	postfork = 1; /* must be in line with ev_default_fork */
1092	}	1374	}
1093		1375
1094	#endif	1376	#endif
1095		1377
1096	#if EV_MULTIPLICITY	1378	#if EV_MULTIPLICITY
…		…
1099	#else	1381	#else
1100	int	1382	int
1101	ev_default_loop (unsigned int flags)	1383	ev_default_loop (unsigned int flags)
1102	#endif	1384	#endif
1103	{	1385	{
1104	if (sigpipe [0] == sigpipe [1])
1105	if (pipe (sigpipe))
1106	return 0;
1107
1108	if (!ev_default_loop_ptr)	1386	if (!ev_default_loop_ptr)
1109	{	1387	{
1110	#if EV_MULTIPLICITY	1388	#if EV_MULTIPLICITY
1111	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1389	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1112	#else	1390	#else
…		…
1115		1393
1116	loop_init (EV_A_ flags);	1394	loop_init (EV_A_ flags);
1117		1395
1118	if (ev_backend (EV_A))	1396	if (ev_backend (EV_A))
1119	{	1397	{
1120	siginit (EV_A);
1121
1122	#ifndef _WIN32	1398	#ifndef _WIN32
1123	ev_signal_init (&childev, childcb, SIGCHLD);	1399	ev_signal_init (&childev, childcb, SIGCHLD);
1124	ev_set_priority (&childev, EV_MAXPRI);	1400	ev_set_priority (&childev, EV_MAXPRI);
1125	ev_signal_start (EV_A_ &childev);	1401	ev_signal_start (EV_A_ &childev);
1126	ev_unref (EV_A); /* child watcher should not keep loop alive */	1402	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1143	#ifndef _WIN32	1419	#ifndef _WIN32
1144	ev_ref (EV_A); /* child watcher */	1420	ev_ref (EV_A); /* child watcher */
1145	ev_signal_stop (EV_A_ &childev);	1421	ev_signal_stop (EV_A_ &childev);
1146	#endif	1422	#endif
1147		1423
1148	ev_ref (EV_A); /* signal watcher */
1149	ev_io_stop (EV_A_ &sigev);
1150
1151	close (sigpipe [0]); sigpipe [0] = 0;
1152	close (sigpipe [1]); sigpipe [1] = 0;
1153
1154	loop_destroy (EV_A);	1424	loop_destroy (EV_A);
1155	}	1425	}
1156		1426
1157	void	1427	void
1158	ev_default_fork (void)	1428	ev_default_fork (void)
…		…
1160	#if EV_MULTIPLICITY	1430	#if EV_MULTIPLICITY
1161	struct ev_loop *loop = ev_default_loop_ptr;	1431	struct ev_loop *loop = ev_default_loop_ptr;
1162	#endif	1432	#endif
1163		1433
1164	if (backend)	1434	if (backend)
1165	postfork = 1;	1435	postfork = 1; /* must be in line with ev_loop_fork */
1166	}	1436	}
1167		1437
1168	/*****************************************************************************/	1438	/*****************************************************************************/
1169		1439
1170	void	1440	void
…		…
1194	}	1464	}
1195		1465
1196	void inline_size	1466	void inline_size
1197	timers_reify (EV_P)	1467	timers_reify (EV_P)
1198	{	1468	{
1199	while (timercnt && ((WT)timers [0])->at <= mn_now)	1469	while (timercnt && ev_at (timers [1]) <= mn_now)
1200	{	1470	{
1201	ev_timer *w = timers [0];	1471	ev_timer *w = (ev_timer *)timers [1];
1202		1472
1203	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1473	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1204		1474
1205	/* first reschedule or stop timer */	1475	/* first reschedule or stop timer */
1206	if (w->repeat)	1476	if (w->repeat)
1207	{	1477	{
1208	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1478	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1209		1479
1210	((WT)w)->at += w->repeat;	1480	ev_at (w) += w->repeat;
1211	if (((WT)w)->at < mn_now)	1481	if (ev_at (w) < mn_now)
1212	((WT)w)->at = mn_now;	1482	ev_at (w) = mn_now;
1213		1483
1214	downheap ((WT *)timers, timercnt, 0);	1484	downheap (timers, timercnt, 1);
1215	}	1485	}
1216	else	1486	else
1217	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1487	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1218		1488
1219	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1489	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1222		1492
1223	#if EV_PERIODIC_ENABLE	1493	#if EV_PERIODIC_ENABLE
1224	void inline_size	1494	void inline_size
1225	periodics_reify (EV_P)	1495	periodics_reify (EV_P)
1226	{	1496	{
1227	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1497	while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1228	{	1498	{
1229	ev_periodic *w = periodics [0];	1499	ev_periodic *w = (ev_periodic *)periodics [1];
1230		1500
1231	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1501	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1232		1502
1233	/* first reschedule or stop timer */	1503	/* first reschedule or stop timer */
1234	if (w->reschedule_cb)	1504	if (w->reschedule_cb)
1235	{	1505	{
1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1506	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1237	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1507	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1238	downheap ((WT *)periodics, periodiccnt, 0);	1508	downheap (periodics, periodiccnt, 1);
1239	}	1509	}
1240	else if (w->interval)	1510	else if (w->interval)
1241	{	1511	{
1242	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1512	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1513	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1243	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1514	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1244	downheap ((WT *)periodics, periodiccnt, 0);	1515	downheap (periodics, periodiccnt, 1);
1245	}	1516	}
1246	else	1517	else
1247	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1518	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1248		1519
1249	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1520	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1254	periodics_reschedule (EV_P)	1525	periodics_reschedule (EV_P)
1255	{	1526	{
1256	int i;	1527	int i;
1257		1528
1258	/* adjust periodics after time jump */	1529	/* adjust periodics after time jump */
1259	for (i = 0; i < periodiccnt; ++i)	1530	for (i = 1; i <= periodiccnt; ++i)
1260	{	1531	{
1261	ev_periodic *w = periodics [i];	1532	ev_periodic *w = (ev_periodic *)periodics [i];
1262		1533
1263	if (w->reschedule_cb)	1534	if (w->reschedule_cb)
1264	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1535	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1265	else if (w->interval)	1536	else if (w->interval)
1266	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1537	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1267	}	1538	}
1268		1539
1269	/* now rebuild the heap */	1540	/* now rebuild the heap */
1270	for (i = periodiccnt >> 1; i--; )	1541	for (i = periodiccnt >> 1; i--; )
1271	downheap ((WT *)periodics, periodiccnt, i);	1542	downheap (periodics, periodiccnt, i);
1272	}	1543	}
1273	#endif	1544	#endif
1274		1545
1275	#if EV_IDLE_ENABLE	1546	#if EV_IDLE_ENABLE
1276	void inline_size	1547	void inline_size
…		…
1293	}	1564	}
1294	}	1565	}
1295	}	1566	}
1296	#endif	1567	#endif
1297		1568
1298	int inline_size	1569	void inline_speed
1299	time_update_monotonic (EV_P)	1570	time_update (EV_P_ ev_tstamp max_block)
1300	{	1571	{
		1572	int i;
		1573
		1574	#if EV_USE_MONOTONIC
		1575	if (expect_true (have_monotonic))
		1576	{
		1577	ev_tstamp odiff = rtmn_diff;
		1578
1301	mn_now = get_clock ();	1579	mn_now = get_clock ();
1302		1580
		1581	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1582	/* interpolate in the meantime */
1303	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1583	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1304	{	1584	{
1305	ev_rt_now = rtmn_diff + mn_now;	1585	ev_rt_now = rtmn_diff + mn_now;
1306	return 0;	1586	return;
1307	}	1587	}
1308	else	1588
1309	{
1310	now_floor = mn_now;	1589	now_floor = mn_now;
1311	ev_rt_now = ev_time ();	1590	ev_rt_now = ev_time ();
1312	return 1;
1313	}
1314	}
1315		1591
1316	void inline_size	1592	/* loop a few times, before making important decisions.
1317	time_update (EV_P)	1593	* on the choice of "4": one iteration isn't enough,
1318	{	1594	* in case we get preempted during the calls to
1319	int i;	1595	* ev_time and get_clock. a second call is almost guaranteed
1320		1596	* to succeed in that case, though. and looping a few more times
1321	#if EV_USE_MONOTONIC	1597	* doesn't hurt either as we only do this on time-jumps or
1322	if (expect_true (have_monotonic))	1598	* in the unlikely event of having been preempted here.
1323	{	1599	*/
1324	if (time_update_monotonic (EV_A))	1600	for (i = 4; --i; )
1325	{	1601	{
1326	ev_tstamp odiff = rtmn_diff;
1327
1328	/* loop a few times, before making important decisions.
1329	* on the choice of "4": one iteration isn't enough,
1330	* in case we get preempted during the calls to
1331	* ev_time and get_clock. a second call is almost guaranteed
1332	* to succeed in that case, though. and looping a few more times
1333	* doesn't hurt either as we only do this on time-jumps or
1334	* in the unlikely event of having been preempted here.
1335	*/
1336	for (i = 4; --i; )
1337	{
1338	rtmn_diff = ev_rt_now - mn_now;	1602	rtmn_diff = ev_rt_now - mn_now;
1339		1603
1340	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1604	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1341	return; /* all is well */	1605	return; /* all is well */
1342		1606
1343	ev_rt_now = ev_time ();	1607	ev_rt_now = ev_time ();
1344	mn_now = get_clock ();	1608	mn_now = get_clock ();
1345	now_floor = mn_now;	1609	now_floor = mn_now;
1346	}	1610	}
1347		1611
1348	# if EV_PERIODIC_ENABLE	1612	# if EV_PERIODIC_ENABLE
1349	periodics_reschedule (EV_A);	1613	periodics_reschedule (EV_A);
1350	# endif	1614	# endif
1351	/* no timer adjustment, as the monotonic clock doesn't jump */	1615	/* no timer adjustment, as the monotonic clock doesn't jump */
1352	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1616	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1353	}
1354	}	1617	}
1355	else	1618	else
1356	#endif	1619	#endif
1357	{	1620	{
1358	ev_rt_now = ev_time ();	1621	ev_rt_now = ev_time ();
1359		1622
1360	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1623	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1361	{	1624	{
1362	#if EV_PERIODIC_ENABLE	1625	#if EV_PERIODIC_ENABLE
1363	periodics_reschedule (EV_A);	1626	periodics_reschedule (EV_A);
1364	#endif	1627	#endif
1365
1366	/* adjust timers. this is easy, as the offset is the same for all of them */	1628	/* adjust timers. this is easy, as the offset is the same for all of them */
1367	for (i = 0; i < timercnt; ++i)	1629	for (i = 1; i <= timercnt; ++i)
1368	((WT)timers [i])->at += ev_rt_now - mn_now;	1630	ev_at (timers [i]) += ev_rt_now - mn_now;
1369	}	1631	}
1370		1632
1371	mn_now = ev_rt_now;	1633	mn_now = ev_rt_now;
1372	}	1634	}
1373	}	1635	}
…		…
1387	static int loop_done;	1649	static int loop_done;
1388		1650
1389	void	1651	void
1390	ev_loop (EV_P_ int flags)	1652	ev_loop (EV_P_ int flags)
1391	{	1653	{
1392	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1654	loop_done = EVUNLOOP_CANCEL;
1393	? EVUNLOOP_ONE
1394	: EVUNLOOP_CANCEL;
1395		1655
1396	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1656	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1397		1657
1398	do	1658	do
1399	{	1659	{
…		…
1433	/* update fd-related kernel structures */	1693	/* update fd-related kernel structures */
1434	fd_reify (EV_A);	1694	fd_reify (EV_A);
1435		1695
1436	/* calculate blocking time */	1696	/* calculate blocking time */
1437	{	1697	{
1438	ev_tstamp block;	1698	ev_tstamp waittime = 0.;
		1699	ev_tstamp sleeptime = 0.;
1439		1700
1440	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1701	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1441	block = 0.; /* do not block at all */
1442	else
1443	{	1702	{
1444	/* update time to cancel out callback processing overhead */	1703	/* update time to cancel out callback processing overhead */
1445	#if EV_USE_MONOTONIC
1446	if (expect_true (have_monotonic))
1447	time_update_monotonic (EV_A);	1704	time_update (EV_A_ 1e100);
1448	else
1449	#endif
1450	{
1451	ev_rt_now = ev_time ();
1452	mn_now = ev_rt_now;
1453	}
1454		1705
1455	block = MAX_BLOCKTIME;	1706	waittime = MAX_BLOCKTIME;
1456		1707
1457	if (timercnt)	1708	if (timercnt)
1458	{	1709	{
1459	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1710	ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1460	if (block > to) block = to;	1711	if (waittime > to) waittime = to;
1461	}	1712	}
1462		1713
1463	#if EV_PERIODIC_ENABLE	1714	#if EV_PERIODIC_ENABLE
1464	if (periodiccnt)	1715	if (periodiccnt)
1465	{	1716	{
1466	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1717	ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;
1467	if (block > to) block = to;	1718	if (waittime > to) waittime = to;
1468	}	1719	}
1469	#endif	1720	#endif
1470		1721
1471	if (expect_false (block < 0.)) block = 0.;	1722	if (expect_false (waittime < timeout_blocktime))
		1723	waittime = timeout_blocktime;
		1724
		1725	sleeptime = waittime - backend_fudge;
		1726
		1727	if (expect_true (sleeptime > io_blocktime))
		1728	sleeptime = io_blocktime;
		1729
		1730	if (sleeptime)
		1731	{
		1732	ev_sleep (sleeptime);
		1733	waittime -= sleeptime;
		1734	}
1472	}	1735	}
1473		1736
1474	++loop_count;	1737	++loop_count;
1475	backend_poll (EV_A_ block);	1738	backend_poll (EV_A_ waittime);
		1739
		1740	/* update ev_rt_now, do magic */
		1741	time_update (EV_A_ waittime + sleeptime);
1476	}	1742	}
1477
1478	/* update ev_rt_now, do magic */
1479	time_update (EV_A);
1480		1743
1481	/* queue pending timers and reschedule them */	1744	/* queue pending timers and reschedule them */
1482	timers_reify (EV_A); /* relative timers called last */	1745	timers_reify (EV_A); /* relative timers called last */
1483	#if EV_PERIODIC_ENABLE	1746	#if EV_PERIODIC_ENABLE
1484	periodics_reify (EV_A); /* absolute timers called first */	1747	periodics_reify (EV_A); /* absolute timers called first */
…		…
1492	/* queue check watchers, to be executed first */	1755	/* queue check watchers, to be executed first */
1493	if (expect_false (checkcnt))	1756	if (expect_false (checkcnt))
1494	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1757	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1495		1758
1496	call_pending (EV_A);	1759	call_pending (EV_A);
1497
1498	}	1760	}
1499	while (expect_true (activecnt && !loop_done));	1761	while (expect_true (
		1762	activecnt
		1763	&& !loop_done
		1764	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1765	));
1500		1766
1501	if (loop_done == EVUNLOOP_ONE)	1767	if (loop_done == EVUNLOOP_ONE)
1502	loop_done = EVUNLOOP_CANCEL;	1768	loop_done = EVUNLOOP_CANCEL;
1503	}	1769	}
1504		1770
…		…
1546	ev_clear_pending (EV_P_ void *w)	1812	ev_clear_pending (EV_P_ void *w)
1547	{	1813	{
1548	W w_ = (W)w;	1814	W w_ = (W)w;
1549	int pending = w_->pending;	1815	int pending = w_->pending;
1550		1816
1551	if (!pending)	1817	if (expect_true (pending))
		1818	{
		1819	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1820	w_->pending = 0;
		1821	p->w = 0;
		1822	return p->events;
		1823	}
		1824	else
1552	return 0;	1825	return 0;
1553
1554	w_->pending = 0;
1555	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1556	p->w = 0;
1557
1558	return p->events;
1559	}	1826	}
1560		1827
1561	void inline_size	1828	void inline_size
1562	pri_adjust (EV_P_ W w)	1829	pri_adjust (EV_P_ W w)
1563	{	1830	{
…		…
1594		1861
1595	assert (("ev_io_start called with negative fd", fd >= 0));	1862	assert (("ev_io_start called with negative fd", fd >= 0));
1596		1863
1597	ev_start (EV_A_ (W)w, 1);	1864	ev_start (EV_A_ (W)w, 1);
1598	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1865	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1599	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1866	wlist_add (&anfds[fd].head, (WL)w);
1600		1867
1601	fd_change (EV_A_ fd);	1868	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1869	w->events &= ~EV_IOFDSET;
1602	}	1870	}
1603		1871
1604	void noinline	1872	void noinline
1605	ev_io_stop (EV_P_ ev_io *w)	1873	ev_io_stop (EV_P_ ev_io *w)
1606	{	1874	{
…		…
1608	if (expect_false (!ev_is_active (w)))	1876	if (expect_false (!ev_is_active (w)))
1609	return;	1877	return;
1610		1878
1611	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1879	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1612		1880
1613	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1881	wlist_del (&anfds[w->fd].head, (WL)w);
1614	ev_stop (EV_A_ (W)w);	1882	ev_stop (EV_A_ (W)w);
1615		1883
1616	fd_change (EV_A_ w->fd);	1884	fd_change (EV_A_ w->fd, 1);
1617	}	1885	}
1618		1886
1619	void noinline	1887	void noinline
1620	ev_timer_start (EV_P_ ev_timer *w)	1888	ev_timer_start (EV_P_ ev_timer *w)
1621	{	1889	{
1622	if (expect_false (ev_is_active (w)))	1890	if (expect_false (ev_is_active (w)))
1623	return;	1891	return;
1624		1892
1625	((WT)w)->at += mn_now;	1893	ev_at (w) += mn_now;
1626		1894
1627	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1895	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1628		1896
1629	ev_start (EV_A_ (W)w, ++timercnt);	1897	ev_start (EV_A_ (W)w, ++timercnt);
1630	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1898	array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1631	timers [timercnt - 1] = w;	1899	timers [timercnt] = (WT)w;
1632	upheap ((WT *)timers, timercnt - 1);	1900	upheap (timers, timercnt);
1633		1901
1634	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	1902	/*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/
1635	}	1903	}
1636		1904
1637	void noinline	1905	void noinline
1638	ev_timer_stop (EV_P_ ev_timer *w)	1906	ev_timer_stop (EV_P_ ev_timer *w)
1639	{	1907	{
1640	clear_pending (EV_A_ (W)w);	1908	clear_pending (EV_A_ (W)w);
1641	if (expect_false (!ev_is_active (w)))	1909	if (expect_false (!ev_is_active (w)))
1642	return;	1910	return;
1643		1911
1644	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1645
1646	{	1912	{
1647	int active = ((W)w)->active;	1913	int active = ev_active (w);
1648		1914
		1915	assert (("internal timer heap corruption", timers [active] == (WT)w));
		1916
1649	if (expect_true (--active < --timercnt))	1917	if (expect_true (active < timercnt))
1650	{	1918	{
1651	timers [active] = timers [timercnt];	1919	timers [active] = timers [timercnt];
1652	adjustheap ((WT *)timers, timercnt, active);	1920	adjustheap (timers, timercnt, active);
1653	}	1921	}
		1922
		1923	--timercnt;
1654	}	1924	}
1655		1925
1656	((WT)w)->at -= mn_now;	1926	ev_at (w) -= mn_now;
1657		1927
1658	ev_stop (EV_A_ (W)w);	1928	ev_stop (EV_A_ (W)w);
1659	}	1929	}
1660		1930
1661	void noinline	1931	void noinline
…		…
1663	{	1933	{
1664	if (ev_is_active (w))	1934	if (ev_is_active (w))
1665	{	1935	{
1666	if (w->repeat)	1936	if (w->repeat)
1667	{	1937	{
1668	((WT)w)->at = mn_now + w->repeat;	1938	ev_at (w) = mn_now + w->repeat;
1669	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1939	adjustheap (timers, timercnt, ev_active (w));
1670	}	1940	}
1671	else	1941	else
1672	ev_timer_stop (EV_A_ w);	1942	ev_timer_stop (EV_A_ w);
1673	}	1943	}
1674	else if (w->repeat)	1944	else if (w->repeat)
1675	{	1945	{
1676	w->at = w->repeat;	1946	ev_at (w) = w->repeat;
1677	ev_timer_start (EV_A_ w);	1947	ev_timer_start (EV_A_ w);
1678	}	1948	}
1679	}	1949	}
1680		1950
1681	#if EV_PERIODIC_ENABLE	1951	#if EV_PERIODIC_ENABLE
…		…
1684	{	1954	{
1685	if (expect_false (ev_is_active (w)))	1955	if (expect_false (ev_is_active (w)))
1686	return;	1956	return;
1687		1957
1688	if (w->reschedule_cb)	1958	if (w->reschedule_cb)
1689	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1959	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1690	else if (w->interval)	1960	else if (w->interval)
1691	{	1961	{
1692	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1962	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1693	/* this formula differs from the one in periodic_reify because we do not always round up */	1963	/* this formula differs from the one in periodic_reify because we do not always round up */
1694	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1964	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1695	}	1965	}
		1966	else
		1967	ev_at (w) = w->offset;
1696		1968
1697	ev_start (EV_A_ (W)w, ++periodiccnt);	1969	ev_start (EV_A_ (W)w, ++periodiccnt);
1698	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1970	array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1699	periodics [periodiccnt - 1] = w;	1971	periodics [periodiccnt] = (WT)w;
1700	upheap ((WT *)periodics, periodiccnt - 1);	1972	upheap (periodics, periodiccnt);
1701		1973
1702	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	1974	/*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/
1703	}	1975	}
1704		1976
1705	void noinline	1977	void noinline
1706	ev_periodic_stop (EV_P_ ev_periodic *w)	1978	ev_periodic_stop (EV_P_ ev_periodic *w)
1707	{	1979	{
1708	clear_pending (EV_A_ (W)w);	1980	clear_pending (EV_A_ (W)w);
1709	if (expect_false (!ev_is_active (w)))	1981	if (expect_false (!ev_is_active (w)))
1710	return;	1982	return;
1711		1983
1712	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1713
1714	{	1984	{
1715	int active = ((W)w)->active;	1985	int active = ev_active (w);
1716		1986
		1987	assert (("internal periodic heap corruption", periodics [active] == (WT)w));
		1988
1717	if (expect_true (--active < --periodiccnt))	1989	if (expect_true (active < periodiccnt))
1718	{	1990	{
1719	periodics [active] = periodics [periodiccnt];	1991	periodics [active] = periodics [periodiccnt];
1720	adjustheap ((WT *)periodics, periodiccnt, active);	1992	adjustheap (periodics, periodiccnt, active);
1721	}	1993	}
		1994
		1995	--periodiccnt;
1722	}	1996	}
1723		1997
1724	ev_stop (EV_A_ (W)w);	1998	ev_stop (EV_A_ (W)w);
1725	}	1999	}
1726		2000
…		…
1746	if (expect_false (ev_is_active (w)))	2020	if (expect_false (ev_is_active (w)))
1747	return;	2021	return;
1748		2022
1749	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2023	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1750		2024
		2025	evpipe_init (EV_A);
		2026
		2027	{
		2028	#ifndef _WIN32
		2029	sigset_t full, prev;
		2030	sigfillset (&full);
		2031	sigprocmask (SIG_SETMASK, &full, &prev);
		2032	#endif
		2033
		2034	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2035
		2036	#ifndef _WIN32
		2037	sigprocmask (SIG_SETMASK, &prev, 0);
		2038	#endif
		2039	}
		2040
1751	ev_start (EV_A_ (W)w, 1);	2041	ev_start (EV_A_ (W)w, 1);
1752	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1753	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2042	wlist_add (&signals [w->signum - 1].head, (WL)w);
1754		2043
1755	if (!((WL)w)->next)	2044	if (!((WL)w)->next)
1756	{	2045	{
1757	#if _WIN32	2046	#if _WIN32
1758	signal (w->signum, sighandler);	2047	signal (w->signum, ev_sighandler);
1759	#else	2048	#else
1760	struct sigaction sa;	2049	struct sigaction sa;
1761	sa.sa_handler = sighandler;	2050	sa.sa_handler = ev_sighandler;
1762	sigfillset (&sa.sa_mask);	2051	sigfillset (&sa.sa_mask);
1763	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2052	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1764	sigaction (w->signum, &sa, 0);	2053	sigaction (w->signum, &sa, 0);
1765	#endif	2054	#endif
1766	}	2055	}
…		…
1771	{	2060	{
1772	clear_pending (EV_A_ (W)w);	2061	clear_pending (EV_A_ (W)w);
1773	if (expect_false (!ev_is_active (w)))	2062	if (expect_false (!ev_is_active (w)))
1774	return;	2063	return;
1775		2064
1776	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2065	wlist_del (&signals [w->signum - 1].head, (WL)w);
1777	ev_stop (EV_A_ (W)w);	2066	ev_stop (EV_A_ (W)w);
1778		2067
1779	if (!signals [w->signum - 1].head)	2068	if (!signals [w->signum - 1].head)
1780	signal (w->signum, SIG_DFL);	2069	signal (w->signum, SIG_DFL);
1781	}	2070	}
…		…
1788	#endif	2077	#endif
1789	if (expect_false (ev_is_active (w)))	2078	if (expect_false (ev_is_active (w)))
1790	return;	2079	return;
1791		2080
1792	ev_start (EV_A_ (W)w, 1);	2081	ev_start (EV_A_ (W)w, 1);
1793	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2082	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1794	}	2083	}
1795		2084
1796	void	2085	void
1797	ev_child_stop (EV_P_ ev_child *w)	2086	ev_child_stop (EV_P_ ev_child *w)
1798	{	2087	{
1799	clear_pending (EV_A_ (W)w);	2088	clear_pending (EV_A_ (W)w);
1800	if (expect_false (!ev_is_active (w)))	2089	if (expect_false (!ev_is_active (w)))
1801	return;	2090	return;
1802		2091
1803	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2092	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1804	ev_stop (EV_A_ (W)w);	2093	ev_stop (EV_A_ (W)w);
1805	}	2094	}
1806		2095
1807	#if EV_STAT_ENABLE	2096	#if EV_STAT_ENABLE
1808		2097
…		…
2081	clear_pending (EV_A_ (W)w);	2370	clear_pending (EV_A_ (W)w);
2082	if (expect_false (!ev_is_active (w)))	2371	if (expect_false (!ev_is_active (w)))
2083	return;	2372	return;
2084		2373
2085	{	2374	{
2086	int active = ((W)w)->active;	2375	int active = ev_active (w);
2087		2376
2088	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2377	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2089	((W)idles [ABSPRI (w)][active - 1])->active = active;	2378	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2090		2379
2091	ev_stop (EV_A_ (W)w);	2380	ev_stop (EV_A_ (W)w);
2092	--idleall;	2381	--idleall;
2093	}	2382	}
2094	}	2383	}
…		…
2111	clear_pending (EV_A_ (W)w);	2400	clear_pending (EV_A_ (W)w);
2112	if (expect_false (!ev_is_active (w)))	2401	if (expect_false (!ev_is_active (w)))
2113	return;	2402	return;
2114		2403
2115	{	2404	{
2116	int active = ((W)w)->active;	2405	int active = ev_active (w);
		2406
2117	prepares [active - 1] = prepares [--preparecnt];	2407	prepares [active - 1] = prepares [--preparecnt];
2118	((W)prepares [active - 1])->active = active;	2408	ev_active (prepares [active - 1]) = active;
2119	}	2409	}
2120		2410
2121	ev_stop (EV_A_ (W)w);	2411	ev_stop (EV_A_ (W)w);
2122	}	2412	}
2123		2413
…		…
2138	clear_pending (EV_A_ (W)w);	2428	clear_pending (EV_A_ (W)w);
2139	if (expect_false (!ev_is_active (w)))	2429	if (expect_false (!ev_is_active (w)))
2140	return;	2430	return;
2141		2431
2142	{	2432	{
2143	int active = ((W)w)->active;	2433	int active = ev_active (w);
		2434
2144	checks [active - 1] = checks [--checkcnt];	2435	checks [active - 1] = checks [--checkcnt];
2145	((W)checks [active - 1])->active = active;	2436	ev_active (checks [active - 1]) = active;
2146	}	2437	}
2147		2438
2148	ev_stop (EV_A_ (W)w);	2439	ev_stop (EV_A_ (W)w);
2149	}	2440	}
2150		2441
2151	#if EV_EMBED_ENABLE	2442	#if EV_EMBED_ENABLE
2152	void noinline	2443	void noinline
2153	ev_embed_sweep (EV_P_ ev_embed *w)	2444	ev_embed_sweep (EV_P_ ev_embed *w)
2154	{	2445	{
2155	ev_loop (w->loop, EVLOOP_NONBLOCK);	2446	ev_loop (w->other, EVLOOP_NONBLOCK);
2156	}	2447	}
2157		2448
2158	static void	2449	static void
2159	embed_cb (EV_P_ ev_io *io, int revents)	2450	embed_io_cb (EV_P_ ev_io *io, int revents)
2160	{	2451	{
2161	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2452	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2162		2453
2163	if (ev_cb (w))	2454	if (ev_cb (w))
2164	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2455	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2165	else	2456	else
2166	ev_embed_sweep (loop, w);	2457	ev_loop (w->other, EVLOOP_NONBLOCK);
2167	}	2458	}
		2459
		2460	static void
		2461	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2462	{
		2463	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2464
		2465	{
		2466	struct ev_loop *loop = w->other;
		2467
		2468	while (fdchangecnt)
		2469	{
		2470	fd_reify (EV_A);
		2471	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2472	}
		2473	}
		2474	}
		2475
		2476	#if 0
		2477	static void
		2478	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2479	{
		2480	ev_idle_stop (EV_A_ idle);
		2481	}
		2482	#endif
2168		2483
2169	void	2484	void
2170	ev_embed_start (EV_P_ ev_embed *w)	2485	ev_embed_start (EV_P_ ev_embed *w)
2171	{	2486	{
2172	if (expect_false (ev_is_active (w)))	2487	if (expect_false (ev_is_active (w)))
2173	return;	2488	return;
2174		2489
2175	{	2490	{
2176	struct ev_loop *loop = w->loop;	2491	struct ev_loop *loop = w->other;
2177	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2492	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2178	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2493	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2179	}	2494	}
2180		2495
2181	ev_set_priority (&w->io, ev_priority (w));	2496	ev_set_priority (&w->io, ev_priority (w));
2182	ev_io_start (EV_A_ &w->io);	2497	ev_io_start (EV_A_ &w->io);
2183		2498
		2499	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2500	ev_set_priority (&w->prepare, EV_MINPRI);
		2501	ev_prepare_start (EV_A_ &w->prepare);
		2502
		2503	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2504
2184	ev_start (EV_A_ (W)w, 1);	2505	ev_start (EV_A_ (W)w, 1);
2185	}	2506	}
2186		2507
2187	void	2508	void
2188	ev_embed_stop (EV_P_ ev_embed *w)	2509	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2190	clear_pending (EV_A_ (W)w);	2511	clear_pending (EV_A_ (W)w);
2191	if (expect_false (!ev_is_active (w)))	2512	if (expect_false (!ev_is_active (w)))
2192	return;	2513	return;
2193		2514
2194	ev_io_stop (EV_A_ &w->io);	2515	ev_io_stop (EV_A_ &w->io);
		2516	ev_prepare_stop (EV_A_ &w->prepare);
2195		2517
2196	ev_stop (EV_A_ (W)w);	2518	ev_stop (EV_A_ (W)w);
2197	}	2519	}
2198	#endif	2520	#endif
2199		2521
…		…
2215	clear_pending (EV_A_ (W)w);	2537	clear_pending (EV_A_ (W)w);
2216	if (expect_false (!ev_is_active (w)))	2538	if (expect_false (!ev_is_active (w)))
2217	return;	2539	return;
2218		2540
2219	{	2541	{
2220	int active = ((W)w)->active;	2542	int active = ev_active (w);
		2543
2221	forks [active - 1] = forks [--forkcnt];	2544	forks [active - 1] = forks [--forkcnt];
2222	((W)forks [active - 1])->active = active;	2545	ev_active (forks [active - 1]) = active;
2223	}	2546	}
2224		2547
2225	ev_stop (EV_A_ (W)w);	2548	ev_stop (EV_A_ (W)w);
		2549	}
		2550	#endif
		2551
		2552	#if EV_ASYNC_ENABLE
		2553	void
		2554	ev_async_start (EV_P_ ev_async *w)
		2555	{
		2556	if (expect_false (ev_is_active (w)))
		2557	return;
		2558
		2559	evpipe_init (EV_A);
		2560
		2561	ev_start (EV_A_ (W)w, ++asynccnt);
		2562	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2563	asyncs [asynccnt - 1] = w;
		2564	}
		2565
		2566	void
		2567	ev_async_stop (EV_P_ ev_async *w)
		2568	{
		2569	clear_pending (EV_A_ (W)w);
		2570	if (expect_false (!ev_is_active (w)))
		2571	return;
		2572
		2573	{
		2574	int active = ev_active (w);
		2575
		2576	asyncs [active - 1] = asyncs [--asynccnt];
		2577	ev_active (asyncs [active - 1]) = active;
		2578	}
		2579
		2580	ev_stop (EV_A_ (W)w);
		2581	}
		2582
		2583	void
		2584	ev_async_send (EV_P_ ev_async *w)
		2585	{
		2586	w->sent = 1;
		2587	evpipe_write (EV_A_ &gotasync);
2226	}	2588	}
2227	#endif	2589	#endif
2228		2590
2229	/*****************************************************************************/	2591	/*****************************************************************************/
2230		2592
…		…
2288	ev_timer_set (&once->to, timeout, 0.);	2650	ev_timer_set (&once->to, timeout, 0.);
2289	ev_timer_start (EV_A_ &once->to);	2651	ev_timer_start (EV_A_ &once->to);
2290	}	2652	}
2291	}	2653	}
2292		2654
		2655	#if EV_MULTIPLICITY
		2656	#include "ev_wrap.h"
		2657	#endif
		2658
2293	#ifdef __cplusplus	2659	#ifdef __cplusplus
2294	}	2660	}
2295	#endif	2661	#endif
2296		2662

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