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Comparing libev/ev.c (file contents):
Revision 1.169 by root, Sat Dec 8 14:27:39 2007 UTC vs.
Revision 1.211 by root, Tue Feb 19 17:09:28 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
…		…
51	# ifndef EV_USE_MONOTONIC	59	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	60	# define EV_USE_MONOTONIC 0
53	# endif	61	# endif
54	# ifndef EV_USE_REALTIME	62	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	63	# define EV_USE_REALTIME 0
		64	# endif
		65	# endif
		66
		67	# ifndef EV_USE_NANOSLEEP
		68	# if HAVE_NANOSLEEP
		69	# define EV_USE_NANOSLEEP 1
		70	# else
		71	# define EV_USE_NANOSLEEP 0
56	# endif	72	# endif
57	# endif	73	# endif
58		74
59	# ifndef EV_USE_SELECT	75	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	76	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
146		162
147	#ifndef EV_USE_REALTIME	163	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	164	# define EV_USE_REALTIME 0
149	#endif	165	#endif
150		166
		167	#ifndef EV_USE_NANOSLEEP
		168	# define EV_USE_NANOSLEEP 0
		169	#endif
		170
151	#ifndef EV_USE_SELECT	171	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	172	# define EV_USE_SELECT 1
153	#endif	173	#endif
154		174
155	#ifndef EV_USE_POLL	175	#ifndef EV_USE_POLL
…		…
202	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
205	#endif	225	#endif
206		226
		227	#if !EV_STAT_ENABLE
		228	# undef EV_USE_INOTIFY
		229	# define EV_USE_INOTIFY 0
		230	#endif
		231
		232	#if !EV_USE_NANOSLEEP
		233	# ifndef _WIN32
		234	# include <sys/select.h>
		235	# endif
		236	#endif
		237
		238	#if EV_USE_INOTIFY
		239	# include <sys/inotify.h>
		240	#endif
		241
207	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	243	# include <winsock.h>
209	#endif	244	#endif
210		245
211	#if !EV_STAT_ENABLE
212	# define EV_USE_INOTIFY 0
213	#endif
214
215	#if EV_USE_INOTIFY
216	# include <sys/inotify.h>
217	#endif
218
219	/**/	246	/**/
		247
		248	/*
		249	* This is used to avoid floating point rounding problems.
		250	* It is added to ev_rt_now when scheduling periodics
		251	* to ensure progress, time-wise, even when rounding
		252	* errors are against us.
		253	* This value is good at least till the year 4000.
		254	* Better solutions welcome.
		255	*/
		256	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		257
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	258	#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) */	259	#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 */	260	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
224		261
225	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
227	# define noinline __attribute__ ((noinline))	264	# define noinline __attribute__ ((noinline))
228	#else	265	#else
229	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
230	# define noinline	267	# define noinline
…		…
251		288
252	typedef ev_watcher *W;	289	typedef ev_watcher *W;
253	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
254	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
255		292
		293	#if EV_USE_MONOTONIC
		294	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		295	/* giving it a reasonably high chance of working on typical architetcures */
256	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
257		298
258	#ifdef _WIN32	299	#ifdef _WIN32
259	# include "ev_win32.c"	300	# include "ev_win32.c"
260	#endif	301	#endif
261		302
…		…
397	{	438	{
398	return ev_rt_now;	439	return ev_rt_now;
399	}	440	}
400	#endif	441	#endif
401		442
		443	void
		444	ev_sleep (ev_tstamp delay)
		445	{
		446	if (delay > 0.)
		447	{
		448	#if EV_USE_NANOSLEEP
		449	struct timespec ts;
		450
		451	ts.tv_sec = (time_t)delay;
		452	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		453
		454	nanosleep (&ts, 0);
		455	#elif defined(_WIN32)
		456	Sleep (delay * 1e3);
		457	#else
		458	struct timeval tv;
		459
		460	tv.tv_sec = (time_t)delay;
		461	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		462
		463	select (0, 0, 0, 0, &tv);
		464	#endif
		465	}
		466	}
		467
		468	/*****************************************************************************/
		469
402	int inline_size	470	int inline_size
403	array_nextsize (int elem, int cur, int cnt)	471	array_nextsize (int elem, int cur, int cnt)
404	{	472	{
405	int ncur = cur + 1;	473	int ncur = cur + 1;
406		474
…		…
418	}	486	}
419		487
420	return ncur;	488	return ncur;
421	}	489	}
422		490
423	inline_speed void *	491	static noinline void *
424	array_realloc (int elem, void *base, int *cur, int cnt)	492	array_realloc (int elem, void *base, int *cur, int cnt)
425	{	493	{
426	*cur = array_nextsize (elem, *cur, cnt);	494	*cur = array_nextsize (elem, *cur, cnt);
427	return ev_realloc (base, elem * *cur);	495	return ev_realloc (base, elem * *cur);
428	}	496	}
…		…
453		521
454	void noinline	522	void noinline
455	ev_feed_event (EV_P_ void *w, int revents)	523	ev_feed_event (EV_P_ void *w, int revents)
456	{	524	{
457	W w_ = (W)w;	525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
458		527
459	if (expect_false (w_->pending))	528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events |= revents;
		530	else
460	{	531	{
		532	w_->pending = ++pendingcnt [pri];
		533	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		534	pendings [pri][w_->pending - 1].w = w_;
461	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	535	pendings [pri][w_->pending - 1].events = revents;
462	return;
463	}	536	}
464
465	w_->pending = ++pendingcnt [ABSPRI (w_)];
466	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
467	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
468	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
469	}	537	}
470		538
471	void inline_size	539	void inline_speed
472	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
473	{	541	{
474	int i;	542	int i;
475		543
476	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
523	{	591	{
524	int fd = fdchanges [i];	592	int fd = fdchanges [i];
525	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
526	ev_io *w;	594	ev_io *w;
527		595
528	int events = 0;	596	unsigned char events = 0;
529		597
530	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	598	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
531	events |= w->events;	599	events |= (unsigned char)w->events;
532		600
533	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
534	if (events)	602	if (events)
535	{	603	{
536	unsigned long argp;	604	unsigned long argp;
		605	#ifdef EV_FD_TO_WIN32_HANDLE
		606	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		607	#else
537	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
538	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	610	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
539	}	611	}
540	#endif	612	#endif
541		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
542	anfd->reify = 0;	618	anfd->reify = 0;
543
544	backend_modify (EV_A_ fd, anfd->events, events);
545	anfd->events = events;	619	anfd->events = events;
		620
		621	if (o_events != events || o_reify & EV_IOFDSET)
		622	backend_modify (EV_A_ fd, o_events, events);
		623	}
546	}	624	}
547		625
548	fdchangecnt = 0;	626	fdchangecnt = 0;
549	}	627	}
550		628
551	void inline_size	629	void inline_size
552	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
553	{	631	{
554	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
555	return;
556
557	anfds [fd].reify = 1;	633	anfds [fd].reify |= flags;
558		634
		635	if (expect_true (!reify))
		636	{
559	++fdchangecnt;	637	++fdchangecnt;
560	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
561	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
562	}	641	}
563		642
564	void inline_speed	643	void inline_speed
565	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
566	{	645	{
…		…
617		696
618	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
619	if (anfds [fd].events)	698	if (anfds [fd].events)
620	{	699	{
621	anfds [fd].events = 0;	700	anfds [fd].events = 0;
622	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET | 1);
623	}	702	}
624	}	703	}
625		704
626	/*****************************************************************************/	705	/*****************************************************************************/
627		706
628	void inline_speed	707	void inline_speed
629	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
630	{	709	{
631	WT w = heap [k];	710	WT w = heap [k];
632		711
633	while (k && heap [k >> 1]->at > w->at)	712	while (k)
634	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
635	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
636	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
637	k >>= 1;	721	k = p;
638	}	722	}
639		723
640	heap [k] = w;	724	heap [k] = w;
641	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
642
643	}	726	}
644		727
645	void inline_speed	728	void inline_speed
646	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
647	{	730	{
648	WT w = heap [k];	731	WT w = heap [k];
649		732
650	while (k < (N >> 1))	733	for (;;)
651	{	734	{
652	int j = k << 1;	735	int c = (k << 1) + 1;
653		736
654	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
655	++j;
656
657	if (w->at <= heap [j]->at)
658	break;	738	break;
659		739
		740	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		741	? 1 : 0;
		742
		743	if (w->at <= heap [c]->at)
		744	break;
		745
660	heap [k] = heap [j];	746	heap [k] = heap [c];
661	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
662	k = j;	749	k = c;
663	}	750	}
664		751
665	heap [k] = w;	752	heap [k] = w;
666	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
667	}	754	}
…		…
676	/*****************************************************************************/	763	/*****************************************************************************/
677		764
678	typedef struct	765	typedef struct
679	{	766	{
680	WL head;	767	WL head;
681	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
682	} ANSIG;	769	} ANSIG;
683		770
684	static ANSIG *signals;	771	static ANSIG *signals;
685	static int signalmax;	772	static int signalmax;
686		773
687	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
688	static sig_atomic_t volatile gotsig;
689	static ev_io sigev;
690		775
691	void inline_size	776	void inline_size
692	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
693	{	778	{
694	while (count--)	779	while (count--)
…		…
698		783
699	++base;	784	++base;
700	}	785	}
701	}	786	}
702		787
703	static void	788	/*****************************************************************************/
704	sighandler (int signum)
705	{
706	#if _WIN32
707	signal (signum, sighandler);
708	#endif
709		789
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
754	void inline_size	790	void inline_speed
755	fd_intern (int fd)	791	fd_intern (int fd)
756	{	792	{
757	#ifdef _WIN32	793	#ifdef _WIN32
758	int arg = 1;	794	int arg = 1;
759	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	795	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
762	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
763	#endif	799	#endif
764	}	800	}
765		801
766	static void noinline	802	static void noinline
767	siginit (EV_P)	803	evpipe_init (EV_P)
768	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
769	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
770	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
771		812
772	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
773	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
774	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* watcher should not keep loop alive */
		816
		817	/* in case we received the signal before we had the chance of installing a handler */
		818	ev_feed_event (EV_A_ &pipeev, 0);
		819	}
		820	}
		821
		822	void inline_size
		823	evpipe_write (EV_P_ int sig, int async)
		824	{
		825	if (!(gotasync || gotsig))
		826	{
		827	int old_errno = errno; /* save errno becaue write might clobber it */
		828
		829	if (sig) gotsig = 1;
		830	if (async) gotasync = 1;
		831
		832	write (evpipe [1], &old_errno, 1);
		833
		834	errno = old_errno;
		835	}
		836	}
		837
		838	static void
		839	pipecb (EV_P_ ev_io *iow, int revents)
		840	{
		841	{
		842	int dummy;
		843	read (evpipe [0], &dummy, 1);
		844	}
		845
		846	if (gotsig && ev_is_default_loop (EV_A))
		847	{
		848	int signum;
		849	gotsig = 0;
		850
		851	for (signum = signalmax; signum--; )
		852	if (signals [signum].gotsig)
		853	ev_feed_signal_event (EV_A_ signum + 1);
		854	}
		855
		856	#if EV_ASYNC_ENABLE
		857	if (gotasync)
		858	{
		859	int i;
		860	gotasync = 0;
		861
		862	for (i = asynccnt; i--; )
		863	if (asyncs [i]->sent)
		864	{
		865	asyncs [i]->sent = 0;
		866	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		867	}
		868	}
		869	#endif
775	}	870	}
776		871
777	/*****************************************************************************/	872	/*****************************************************************************/
778		873
		874	static void
		875	sighandler (int signum)
		876	{
		877	#if EV_MULTIPLICITY
		878	struct ev_loop *loop = &default_loop_struct;
		879	#endif
		880
		881	#if _WIN32
		882	signal (signum, sighandler);
		883	#endif
		884
		885	signals [signum - 1].gotsig = 1;
		886	evpipe_write (EV_A_ 1, 0);
		887	}
		888
		889	void noinline
		890	ev_feed_signal_event (EV_P_ int signum)
		891	{
		892	WL w;
		893
		894	#if EV_MULTIPLICITY
		895	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		896	#endif
		897
		898	--signum;
		899
		900	if (signum < 0 || signum >= signalmax)
		901	return;
		902
		903	signals [signum].gotsig = 0;
		904
		905	for (w = signals [signum].head; w; w = w->next)
		906	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		907	}
		908
		909	/*****************************************************************************/
		910
779	static ev_child *childs [EV_PID_HASHSIZE];	911	static WL childs [EV_PID_HASHSIZE];
780		912
781	#ifndef _WIN32	913	#ifndef _WIN32
782		914
783	static ev_signal childev;	915	static ev_signal childev;
		916
		917	#ifndef WIFCONTINUED
		918	# define WIFCONTINUED(status) 0
		919	#endif
784		920
785	void inline_speed	921	void inline_speed
786	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	922	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
787	{	923	{
788	ev_child *w;	924	ev_child *w;
		925	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
789		926
790	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	927	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		928	{
791	if (w->pid == pid || !w->pid)	929	if ((w->pid == pid || !w->pid)
		930	&& (!traced || (w->flags & 1)))
792	{	931	{
793	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	932	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
794	w->rpid = pid;	933	w->rpid = pid;
795	w->rstatus = status;	934	w->rstatus = status;
796	ev_feed_event (EV_A_ (W)w, EV_CHILD);	935	ev_feed_event (EV_A_ (W)w, EV_CHILD);
797	}	936	}
		937	}
798	}	938	}
799		939
800	#ifndef WCONTINUED	940	#ifndef WCONTINUED
801	# define WCONTINUED 0	941	# define WCONTINUED 0
802	#endif	942	#endif
…		…
899	}	1039	}
900		1040
901	unsigned int	1041	unsigned int
902	ev_embeddable_backends (void)	1042	ev_embeddable_backends (void)
903	{	1043	{
904	return EVBACKEND_EPOLL	1044	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
905	| EVBACKEND_KQUEUE	1045
906	| EVBACKEND_PORT;	1046	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1047	/* please fix it and tell me how to detect the fix */
		1048	flags &= ~EVBACKEND_EPOLL;
		1049
		1050	return flags;
907	}	1051	}
908		1052
909	unsigned int	1053	unsigned int
910	ev_backend (EV_P)	1054	ev_backend (EV_P)
911	{	1055	{
…		…
914		1058
915	unsigned int	1059	unsigned int
916	ev_loop_count (EV_P)	1060	ev_loop_count (EV_P)
917	{	1061	{
918	return loop_count;	1062	return loop_count;
		1063	}
		1064
		1065	void
		1066	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1067	{
		1068	io_blocktime = interval;
		1069	}
		1070
		1071	void
		1072	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1073	{
		1074	timeout_blocktime = interval;
919	}	1075	}
920		1076
921	static void noinline	1077	static void noinline
922	loop_init (EV_P_ unsigned int flags)	1078	loop_init (EV_P_ unsigned int flags)
923	{	1079	{
…		…
929	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1085	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
930	have_monotonic = 1;	1086	have_monotonic = 1;
931	}	1087	}
932	#endif	1088	#endif
933		1089
934	ev_rt_now = ev_time ();	1090	ev_rt_now = ev_time ();
935	mn_now = get_clock ();	1091	mn_now = get_clock ();
936	now_floor = mn_now;	1092	now_floor = mn_now;
937	rtmn_diff = ev_rt_now - mn_now;	1093	rtmn_diff = ev_rt_now - mn_now;
		1094
		1095	io_blocktime = 0.;
		1096	timeout_blocktime = 0.;
		1097	backend = 0;
		1098	backend_fd = -1;
		1099	gotasync = 0;
		1100	#if EV_USE_INOTIFY
		1101	fs_fd = -2;
		1102	#endif
938		1103
939	/* pid check not overridable via env */	1104	/* pid check not overridable via env */
940	#ifndef _WIN32	1105	#ifndef _WIN32
941	if (flags & EVFLAG_FORKCHECK)	1106	if (flags & EVFLAG_FORKCHECK)
942	curpid = getpid ();	1107	curpid = getpid ();
…		…
948	flags = atoi (getenv ("LIBEV_FLAGS"));	1113	flags = atoi (getenv ("LIBEV_FLAGS"));
949		1114
950	if (!(flags & 0x0000ffffUL))	1115	if (!(flags & 0x0000ffffUL))
951	flags |= ev_recommended_backends ();	1116	flags |= ev_recommended_backends ();
952		1117
953	backend = 0;
954	backend_fd = -1;
955	#if EV_USE_INOTIFY
956	fs_fd = -2;
957	#endif
958
959	#if EV_USE_PORT	1118	#if EV_USE_PORT
960	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1119	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
961	#endif	1120	#endif
962	#if EV_USE_KQUEUE	1121	#if EV_USE_KQUEUE
963	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1122	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
970	#endif	1129	#endif
971	#if EV_USE_SELECT	1130	#if EV_USE_SELECT
972	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1131	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
973	#endif	1132	#endif
974		1133
975	ev_init (&sigev, sigcb);	1134	ev_init (&pipeev, pipecb);
976	ev_set_priority (&sigev, EV_MAXPRI);	1135	ev_set_priority (&pipeev, EV_MAXPRI);
977	}	1136	}
978	}	1137	}
979		1138
980	static void noinline	1139	static void noinline
981	loop_destroy (EV_P)	1140	loop_destroy (EV_P)
982	{	1141	{
983	int i;	1142	int i;
		1143
		1144	if (ev_is_active (&pipeev))
		1145	{
		1146	ev_ref (EV_A); /* signal watcher */
		1147	ev_io_stop (EV_A_ &pipeev);
		1148
		1149	close (evpipe [0]); evpipe [0] = 0;
		1150	close (evpipe [1]); evpipe [1] = 0;
		1151	}
984		1152
985	#if EV_USE_INOTIFY	1153	#if EV_USE_INOTIFY
986	if (fs_fd >= 0)	1154	if (fs_fd >= 0)
987	close (fs_fd);	1155	close (fs_fd);
988	#endif	1156	#endif
…		…
1011	array_free (pending, [i]);	1179	array_free (pending, [i]);
1012	#if EV_IDLE_ENABLE	1180	#if EV_IDLE_ENABLE
1013	array_free (idle, [i]);	1181	array_free (idle, [i]);
1014	#endif	1182	#endif
1015	}	1183	}
		1184
		1185	ev_free (anfds); anfdmax = 0;
1016		1186
1017	/* have to use the microsoft-never-gets-it-right macro */	1187	/* have to use the microsoft-never-gets-it-right macro */
1018	array_free (fdchange, EMPTY);	1188	array_free (fdchange, EMPTY);
1019	array_free (timer, EMPTY);	1189	array_free (timer, EMPTY);
1020	#if EV_PERIODIC_ENABLE	1190	#if EV_PERIODIC_ENABLE
1021	array_free (periodic, EMPTY);	1191	array_free (periodic, EMPTY);
1022	#endif	1192	#endif
		1193	#if EV_FORK_ENABLE
		1194	array_free (fork, EMPTY);
		1195	#endif
1023	array_free (prepare, EMPTY);	1196	array_free (prepare, EMPTY);
1024	array_free (check, EMPTY);	1197	array_free (check, EMPTY);
		1198	#if EV_ASYNC_ENABLE
		1199	array_free (async, EMPTY);
		1200	#endif
1025		1201
1026	backend = 0;	1202	backend = 0;
1027	}	1203	}
1028		1204
1029	void inline_size infy_fork (EV_P);	1205	void inline_size infy_fork (EV_P);
…		…
1042	#endif	1218	#endif
1043	#if EV_USE_INOTIFY	1219	#if EV_USE_INOTIFY
1044	infy_fork (EV_A);	1220	infy_fork (EV_A);
1045	#endif	1221	#endif
1046		1222
1047	if (ev_is_active (&sigev))	1223	if (ev_is_active (&pipeev))
1048	{	1224	{
1049	/* default loop */	1225	/* this "locks" the handlers against writing to the pipe */
		1226	gotsig = gotasync = 1;
1050		1227
1051	ev_ref (EV_A);	1228	ev_ref (EV_A);
1052	ev_io_stop (EV_A_ &sigev);	1229	ev_io_stop (EV_A_ &pipeev);
1053	close (sigpipe [0]);	1230	close (evpipe [0]);
1054	close (sigpipe [1]);	1231	close (evpipe [1]);
1055		1232
1056	while (pipe (sigpipe))
1057	syserr ("(libev) error creating pipe");
1058
1059	siginit (EV_A);	1233	evpipe_init (EV_A);
		1234	/* now iterate over everything, in case we missed something */
		1235	pipecb (EV_A_ &pipeev, EV_READ);
1060	}	1236	}
1061		1237
1062	postfork = 0;	1238	postfork = 0;
1063	}	1239	}
1064		1240
…		…
1086	}	1262	}
1087		1263
1088	void	1264	void
1089	ev_loop_fork (EV_P)	1265	ev_loop_fork (EV_P)
1090	{	1266	{
1091	postfork = 1;	1267	postfork = 1; /* must be in line with ev_default_fork */
1092	}	1268	}
1093		1269
1094	#endif	1270	#endif
1095		1271
1096	#if EV_MULTIPLICITY	1272	#if EV_MULTIPLICITY
…		…
1099	#else	1275	#else
1100	int	1276	int
1101	ev_default_loop (unsigned int flags)	1277	ev_default_loop (unsigned int flags)
1102	#endif	1278	#endif
1103	{	1279	{
1104	if (sigpipe [0] == sigpipe [1])
1105	if (pipe (sigpipe))
1106	return 0;
1107
1108	if (!ev_default_loop_ptr)	1280	if (!ev_default_loop_ptr)
1109	{	1281	{
1110	#if EV_MULTIPLICITY	1282	#if EV_MULTIPLICITY
1111	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1283	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1112	#else	1284	#else
…		…
1115		1287
1116	loop_init (EV_A_ flags);	1288	loop_init (EV_A_ flags);
1117		1289
1118	if (ev_backend (EV_A))	1290	if (ev_backend (EV_A))
1119	{	1291	{
1120	siginit (EV_A);
1121
1122	#ifndef _WIN32	1292	#ifndef _WIN32
1123	ev_signal_init (&childev, childcb, SIGCHLD);	1293	ev_signal_init (&childev, childcb, SIGCHLD);
1124	ev_set_priority (&childev, EV_MAXPRI);	1294	ev_set_priority (&childev, EV_MAXPRI);
1125	ev_signal_start (EV_A_ &childev);	1295	ev_signal_start (EV_A_ &childev);
1126	ev_unref (EV_A); /* child watcher should not keep loop alive */	1296	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1143	#ifndef _WIN32	1313	#ifndef _WIN32
1144	ev_ref (EV_A); /* child watcher */	1314	ev_ref (EV_A); /* child watcher */
1145	ev_signal_stop (EV_A_ &childev);	1315	ev_signal_stop (EV_A_ &childev);
1146	#endif	1316	#endif
1147		1317
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);	1318	loop_destroy (EV_A);
1155	}	1319	}
1156		1320
1157	void	1321	void
1158	ev_default_fork (void)	1322	ev_default_fork (void)
…		…
1160	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1161	struct ev_loop *loop = ev_default_loop_ptr;	1325	struct ev_loop *loop = ev_default_loop_ptr;
1162	#endif	1326	#endif
1163		1327
1164	if (backend)	1328	if (backend)
1165	postfork = 1;	1329	postfork = 1; /* must be in line with ev_loop_fork */
1166	}	1330	}
1167		1331
1168	/*****************************************************************************/	1332	/*****************************************************************************/
1169		1333
1170	void	1334	void
…		…
1196	void inline_size	1360	void inline_size
1197	timers_reify (EV_P)	1361	timers_reify (EV_P)
1198	{	1362	{
1199	while (timercnt && ((WT)timers [0])->at <= mn_now)	1363	while (timercnt && ((WT)timers [0])->at <= mn_now)
1200	{	1364	{
1201	ev_timer *w = timers [0];	1365	ev_timer *w = (ev_timer *)timers [0];
1202		1366
1203	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1367	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1204		1368
1205	/* first reschedule or stop timer */	1369	/* first reschedule or stop timer */
1206	if (w->repeat)	1370	if (w->repeat)
…		…
1209		1373
1210	((WT)w)->at += w->repeat;	1374	((WT)w)->at += w->repeat;
1211	if (((WT)w)->at < mn_now)	1375	if (((WT)w)->at < mn_now)
1212	((WT)w)->at = mn_now;	1376	((WT)w)->at = mn_now;
1213		1377
1214	downheap ((WT *)timers, timercnt, 0);	1378	downheap (timers, timercnt, 0);
1215	}	1379	}
1216	else	1380	else
1217	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1381	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1218		1382
1219	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1383	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1224	void inline_size	1388	void inline_size
1225	periodics_reify (EV_P)	1389	periodics_reify (EV_P)
1226	{	1390	{
1227	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1391	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1228	{	1392	{
1229	ev_periodic *w = periodics [0];	1393	ev_periodic *w = (ev_periodic *)periodics [0];
1230		1394
1231	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1395	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1232		1396
1233	/* first reschedule or stop timer */	1397	/* first reschedule or stop timer */
1234	if (w->reschedule_cb)	1398	if (w->reschedule_cb)
1235	{	1399	{
1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1400	((WT)w)->at = 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));	1401	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1238	downheap ((WT *)periodics, periodiccnt, 0);	1402	downheap (periodics, periodiccnt, 0);
1239	}	1403	}
1240	else if (w->interval)	1404	else if (w->interval)
1241	{	1405	{
1242	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1406	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1407	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1243	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1408	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1244	downheap ((WT *)periodics, periodiccnt, 0);	1409	downheap (periodics, periodiccnt, 0);
1245	}	1410	}
1246	else	1411	else
1247	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1412	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1248		1413
1249	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1414	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1256	int i;	1421	int i;
1257		1422
1258	/* adjust periodics after time jump */	1423	/* adjust periodics after time jump */
1259	for (i = 0; i < periodiccnt; ++i)	1424	for (i = 0; i < periodiccnt; ++i)
1260	{	1425	{
1261	ev_periodic *w = periodics [i];	1426	ev_periodic *w = (ev_periodic *)periodics [i];
1262		1427
1263	if (w->reschedule_cb)	1428	if (w->reschedule_cb)
1264	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1429	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1265	else if (w->interval)	1430	else if (w->interval)
1266	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1431	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1267	}	1432	}
1268		1433
1269	/* now rebuild the heap */	1434	/* now rebuild the heap */
1270	for (i = periodiccnt >> 1; i--; )	1435	for (i = periodiccnt >> 1; i--; )
1271	downheap ((WT *)periodics, periodiccnt, i);	1436	downheap (periodics, periodiccnt, i);
1272	}	1437	}
1273	#endif	1438	#endif
1274		1439
1275	#if EV_IDLE_ENABLE	1440	#if EV_IDLE_ENABLE
1276	void inline_size	1441	void inline_size
…		…
1293	}	1458	}
1294	}	1459	}
1295	}	1460	}
1296	#endif	1461	#endif
1297		1462
1298	int inline_size	1463	void inline_speed
1299	time_update_monotonic (EV_P)	1464	time_update (EV_P_ ev_tstamp max_block)
1300	{	1465	{
		1466	int i;
		1467
		1468	#if EV_USE_MONOTONIC
		1469	if (expect_true (have_monotonic))
		1470	{
		1471	ev_tstamp odiff = rtmn_diff;
		1472
1301	mn_now = get_clock ();	1473	mn_now = get_clock ();
1302		1474
		1475	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1476	/* interpolate in the meantime */
1303	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1477	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1304	{	1478	{
1305	ev_rt_now = rtmn_diff + mn_now;	1479	ev_rt_now = rtmn_diff + mn_now;
1306	return 0;	1480	return;
1307	}	1481	}
1308	else	1482
1309	{
1310	now_floor = mn_now;	1483	now_floor = mn_now;
1311	ev_rt_now = ev_time ();	1484	ev_rt_now = ev_time ();
1312	return 1;
1313	}
1314	}
1315		1485
1316	void inline_size	1486	/* loop a few times, before making important decisions.
1317	time_update (EV_P)	1487	* on the choice of "4": one iteration isn't enough,
1318	{	1488	* in case we get preempted during the calls to
1319	int i;	1489	* ev_time and get_clock. a second call is almost guaranteed
1320		1490	* to succeed in that case, though. and looping a few more times
1321	#if EV_USE_MONOTONIC	1491	* doesn't hurt either as we only do this on time-jumps or
1322	if (expect_true (have_monotonic))	1492	* in the unlikely event of having been preempted here.
1323	{	1493	*/
1324	if (time_update_monotonic (EV_A))	1494	for (i = 4; --i; )
1325	{	1495	{
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;	1496	rtmn_diff = ev_rt_now - mn_now;
1339		1497
1340	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1498	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1341	return; /* all is well */	1499	return; /* all is well */
1342		1500
1343	ev_rt_now = ev_time ();	1501	ev_rt_now = ev_time ();
1344	mn_now = get_clock ();	1502	mn_now = get_clock ();
1345	now_floor = mn_now;	1503	now_floor = mn_now;
1346	}	1504	}
1347		1505
1348	# if EV_PERIODIC_ENABLE	1506	# if EV_PERIODIC_ENABLE
1349	periodics_reschedule (EV_A);	1507	periodics_reschedule (EV_A);
1350	# endif	1508	# endif
1351	/* no timer adjustment, as the monotonic clock doesn't jump */	1509	/* no timer adjustment, as the monotonic clock doesn't jump */
1352	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1510	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1353	}
1354	}	1511	}
1355	else	1512	else
1356	#endif	1513	#endif
1357	{	1514	{
1358	ev_rt_now = ev_time ();	1515	ev_rt_now = ev_time ();
1359		1516
1360	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1517	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1361	{	1518	{
1362	#if EV_PERIODIC_ENABLE	1519	#if EV_PERIODIC_ENABLE
1363	periodics_reschedule (EV_A);	1520	periodics_reschedule (EV_A);
1364	#endif	1521	#endif
1365
1366	/* adjust timers. this is easy, as the offset is the same for all of them */	1522	/* adjust timers. this is easy, as the offset is the same for all of them */
1367	for (i = 0; i < timercnt; ++i)	1523	for (i = 0; i < timercnt; ++i)
1368	((WT)timers [i])->at += ev_rt_now - mn_now;	1524	((WT)timers [i])->at += ev_rt_now - mn_now;
1369	}	1525	}
1370		1526
…		…
1414	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1570	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1415	call_pending (EV_A);	1571	call_pending (EV_A);
1416	}	1572	}
1417	#endif	1573	#endif
1418		1574
1419	/* queue check watchers (and execute them) */	1575	/* queue prepare watchers (and execute them) */
1420	if (expect_false (preparecnt))	1576	if (expect_false (preparecnt))
1421	{	1577	{
1422	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1578	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1423	call_pending (EV_A);	1579	call_pending (EV_A);
1424	}	1580	}
…		…
1433	/* update fd-related kernel structures */	1589	/* update fd-related kernel structures */
1434	fd_reify (EV_A);	1590	fd_reify (EV_A);
1435		1591
1436	/* calculate blocking time */	1592	/* calculate blocking time */
1437	{	1593	{
1438	ev_tstamp block;	1594	ev_tstamp waittime = 0.;
		1595	ev_tstamp sleeptime = 0.;
1439		1596
1440	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1597	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1441	block = 0.; /* do not block at all */
1442	else
1443	{	1598	{
1444	/* update time to cancel out callback processing overhead */	1599	/* 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);	1600	time_update (EV_A_ 1e100);
1448	else
1449	#endif
1450	{
1451	ev_rt_now = ev_time ();
1452	mn_now = ev_rt_now;
1453	}
1454		1601
1455	block = MAX_BLOCKTIME;	1602	waittime = MAX_BLOCKTIME;
1456		1603
1457	if (timercnt)	1604	if (timercnt)
1458	{	1605	{
1459	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1606	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1460	if (block > to) block = to;	1607	if (waittime > to) waittime = to;
1461	}	1608	}
1462		1609
1463	#if EV_PERIODIC_ENABLE	1610	#if EV_PERIODIC_ENABLE
1464	if (periodiccnt)	1611	if (periodiccnt)
1465	{	1612	{
1466	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1613	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1467	if (block > to) block = to;	1614	if (waittime > to) waittime = to;
1468	}	1615	}
1469	#endif	1616	#endif
1470		1617
1471	if (expect_false (block < 0.)) block = 0.;	1618	if (expect_false (waittime < timeout_blocktime))
		1619	waittime = timeout_blocktime;
		1620
		1621	sleeptime = waittime - backend_fudge;
		1622
		1623	if (expect_true (sleeptime > io_blocktime))
		1624	sleeptime = io_blocktime;
		1625
		1626	if (sleeptime)
		1627	{
		1628	ev_sleep (sleeptime);
		1629	waittime -= sleeptime;
		1630	}
1472	}	1631	}
1473		1632
1474	++loop_count;	1633	++loop_count;
1475	backend_poll (EV_A_ block);	1634	backend_poll (EV_A_ waittime);
		1635
		1636	/* update ev_rt_now, do magic */
		1637	time_update (EV_A_ waittime + sleeptime);
1476	}	1638	}
1477
1478	/* update ev_rt_now, do magic */
1479	time_update (EV_A);
1480		1639
1481	/* queue pending timers and reschedule them */	1640	/* queue pending timers and reschedule them */
1482	timers_reify (EV_A); /* relative timers called last */	1641	timers_reify (EV_A); /* relative timers called last */
1483	#if EV_PERIODIC_ENABLE	1642	#if EV_PERIODIC_ENABLE
1484	periodics_reify (EV_A); /* absolute timers called first */	1643	periodics_reify (EV_A); /* absolute timers called first */
…		…
1546	ev_clear_pending (EV_P_ void *w)	1705	ev_clear_pending (EV_P_ void *w)
1547	{	1706	{
1548	W w_ = (W)w;	1707	W w_ = (W)w;
1549	int pending = w_->pending;	1708	int pending = w_->pending;
1550		1709
1551	if (!pending)	1710	if (expect_true (pending))
		1711	{
		1712	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1713	w_->pending = 0;
		1714	p->w = 0;
		1715	return p->events;
		1716	}
		1717	else
1552	return 0;	1718	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	}	1719	}
1560		1720
1561	void inline_size	1721	void inline_size
1562	pri_adjust (EV_P_ W w)	1722	pri_adjust (EV_P_ W w)
1563	{	1723	{
…		…
1582	w->active = 0;	1742	w->active = 0;
1583	}	1743	}
1584		1744
1585	/*****************************************************************************/	1745	/*****************************************************************************/
1586		1746
1587	void	1747	void noinline
1588	ev_io_start (EV_P_ ev_io *w)	1748	ev_io_start (EV_P_ ev_io *w)
1589	{	1749	{
1590	int fd = w->fd;	1750	int fd = w->fd;
1591		1751
1592	if (expect_false (ev_is_active (w)))	1752	if (expect_false (ev_is_active (w)))
…		…
1594		1754
1595	assert (("ev_io_start called with negative fd", fd >= 0));	1755	assert (("ev_io_start called with negative fd", fd >= 0));
1596		1756
1597	ev_start (EV_A_ (W)w, 1);	1757	ev_start (EV_A_ (W)w, 1);
1598	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1758	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1599	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1759	wlist_add (&anfds[fd].head, (WL)w);
1600		1760
1601	fd_change (EV_A_ fd);	1761	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1762	w->events &= ~EV_IOFDSET;
1602	}	1763	}
1603		1764
1604	void	1765	void noinline
1605	ev_io_stop (EV_P_ ev_io *w)	1766	ev_io_stop (EV_P_ ev_io *w)
1606	{	1767	{
1607	clear_pending (EV_A_ (W)w);	1768	clear_pending (EV_A_ (W)w);
1608	if (expect_false (!ev_is_active (w)))	1769	if (expect_false (!ev_is_active (w)))
1609	return;	1770	return;
1610		1771
1611	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1772	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1612		1773
1613	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1774	wlist_del (&anfds[w->fd].head, (WL)w);
1614	ev_stop (EV_A_ (W)w);	1775	ev_stop (EV_A_ (W)w);
1615		1776
1616	fd_change (EV_A_ w->fd);	1777	fd_change (EV_A_ w->fd, 1);
1617	}	1778	}
1618		1779
1619	void	1780	void noinline
1620	ev_timer_start (EV_P_ ev_timer *w)	1781	ev_timer_start (EV_P_ ev_timer *w)
1621	{	1782	{
1622	if (expect_false (ev_is_active (w)))	1783	if (expect_false (ev_is_active (w)))
1623	return;	1784	return;
1624		1785
1625	((WT)w)->at += mn_now;	1786	((WT)w)->at += mn_now;
1626		1787
1627	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1788	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1628		1789
1629	ev_start (EV_A_ (W)w, ++timercnt);	1790	ev_start (EV_A_ (W)w, ++timercnt);
1630	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1791	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1631	timers [timercnt - 1] = w;	1792	timers [timercnt - 1] = (WT)w;
1632	upheap ((WT *)timers, timercnt - 1);	1793	upheap (timers, timercnt - 1);
1633		1794
1634	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	1795	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1635	}	1796	}
1636		1797
1637	void	1798	void noinline
1638	ev_timer_stop (EV_P_ ev_timer *w)	1799	ev_timer_stop (EV_P_ ev_timer *w)
1639	{	1800	{
1640	clear_pending (EV_A_ (W)w);	1801	clear_pending (EV_A_ (W)w);
1641	if (expect_false (!ev_is_active (w)))	1802	if (expect_false (!ev_is_active (w)))
1642	return;	1803	return;
1643		1804
1644	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1805	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1645		1806
1646	{	1807	{
1647	int active = ((W)w)->active;	1808	int active = ((W)w)->active;
1648		1809
1649	if (expect_true (--active < --timercnt))	1810	if (expect_true (--active < --timercnt))
1650	{	1811	{
1651	timers [active] = timers [timercnt];	1812	timers [active] = timers [timercnt];
1652	adjustheap ((WT *)timers, timercnt, active);	1813	adjustheap (timers, timercnt, active);
1653	}	1814	}
1654	}	1815	}
1655		1816
1656	((WT)w)->at -= mn_now;	1817	((WT)w)->at -= mn_now;
1657		1818
1658	ev_stop (EV_A_ (W)w);	1819	ev_stop (EV_A_ (W)w);
1659	}	1820	}
1660		1821
1661	void	1822	void noinline
1662	ev_timer_again (EV_P_ ev_timer *w)	1823	ev_timer_again (EV_P_ ev_timer *w)
1663	{	1824	{
1664	if (ev_is_active (w))	1825	if (ev_is_active (w))
1665	{	1826	{
1666	if (w->repeat)	1827	if (w->repeat)
1667	{	1828	{
1668	((WT)w)->at = mn_now + w->repeat;	1829	((WT)w)->at = mn_now + w->repeat;
1669	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1830	adjustheap (timers, timercnt, ((W)w)->active - 1);
1670	}	1831	}
1671	else	1832	else
1672	ev_timer_stop (EV_A_ w);	1833	ev_timer_stop (EV_A_ w);
1673	}	1834	}
1674	else if (w->repeat)	1835	else if (w->repeat)
…		…
1677	ev_timer_start (EV_A_ w);	1838	ev_timer_start (EV_A_ w);
1678	}	1839	}
1679	}	1840	}
1680		1841
1681	#if EV_PERIODIC_ENABLE	1842	#if EV_PERIODIC_ENABLE
1682	void	1843	void noinline
1683	ev_periodic_start (EV_P_ ev_periodic *w)	1844	ev_periodic_start (EV_P_ ev_periodic *w)
1684	{	1845	{
1685	if (expect_false (ev_is_active (w)))	1846	if (expect_false (ev_is_active (w)))
1686	return;	1847	return;
1687		1848
…		…
1689	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1850	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1690	else if (w->interval)	1851	else if (w->interval)
1691	{	1852	{
1692	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1853	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 */	1854	/* 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;	1855	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1695	}	1856	}
		1857	else
		1858	((WT)w)->at = w->offset;
1696		1859
1697	ev_start (EV_A_ (W)w, ++periodiccnt);	1860	ev_start (EV_A_ (W)w, ++periodiccnt);
1698	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1861	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1699	periodics [periodiccnt - 1] = w;	1862	periodics [periodiccnt - 1] = (WT)w;
1700	upheap ((WT *)periodics, periodiccnt - 1);	1863	upheap (periodics, periodiccnt - 1);
1701		1864
1702	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	1865	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1703	}	1866	}
1704		1867
1705	void	1868	void noinline
1706	ev_periodic_stop (EV_P_ ev_periodic *w)	1869	ev_periodic_stop (EV_P_ ev_periodic *w)
1707	{	1870	{
1708	clear_pending (EV_A_ (W)w);	1871	clear_pending (EV_A_ (W)w);
1709	if (expect_false (!ev_is_active (w)))	1872	if (expect_false (!ev_is_active (w)))
1710	return;	1873	return;
1711		1874
1712	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1875	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1713		1876
1714	{	1877	{
1715	int active = ((W)w)->active;	1878	int active = ((W)w)->active;
1716		1879
1717	if (expect_true (--active < --periodiccnt))	1880	if (expect_true (--active < --periodiccnt))
1718	{	1881	{
1719	periodics [active] = periodics [periodiccnt];	1882	periodics [active] = periodics [periodiccnt];
1720	adjustheap ((WT *)periodics, periodiccnt, active);	1883	adjustheap (periodics, periodiccnt, active);
1721	}	1884	}
1722	}	1885	}
1723		1886
1724	ev_stop (EV_A_ (W)w);	1887	ev_stop (EV_A_ (W)w);
1725	}	1888	}
1726		1889
1727	void	1890	void noinline
1728	ev_periodic_again (EV_P_ ev_periodic *w)	1891	ev_periodic_again (EV_P_ ev_periodic *w)
1729	{	1892	{
1730	/* TODO: use adjustheap and recalculation */	1893	/* TODO: use adjustheap and recalculation */
1731	ev_periodic_stop (EV_A_ w);	1894	ev_periodic_stop (EV_A_ w);
1732	ev_periodic_start (EV_A_ w);	1895	ev_periodic_start (EV_A_ w);
…		…
1735		1898
1736	#ifndef SA_RESTART	1899	#ifndef SA_RESTART
1737	# define SA_RESTART 0	1900	# define SA_RESTART 0
1738	#endif	1901	#endif
1739		1902
1740	void	1903	void noinline
1741	ev_signal_start (EV_P_ ev_signal *w)	1904	ev_signal_start (EV_P_ ev_signal *w)
1742	{	1905	{
1743	#if EV_MULTIPLICITY	1906	#if EV_MULTIPLICITY
1744	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1907	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1745	#endif	1908	#endif
1746	if (expect_false (ev_is_active (w)))	1909	if (expect_false (ev_is_active (w)))
1747	return;	1910	return;
1748		1911
1749	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1912	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1750		1913
		1914	evpipe_init (EV_A);
		1915
		1916	{
		1917	#ifndef _WIN32
		1918	sigset_t full, prev;
		1919	sigfillset (&full);
		1920	sigprocmask (SIG_SETMASK, &full, &prev);
		1921	#endif
		1922
		1923	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1924
		1925	#ifndef _WIN32
		1926	sigprocmask (SIG_SETMASK, &prev, 0);
		1927	#endif
		1928	}
		1929
1751	ev_start (EV_A_ (W)w, 1);	1930	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);	1931	wlist_add (&signals [w->signum - 1].head, (WL)w);
1754		1932
1755	if (!((WL)w)->next)	1933	if (!((WL)w)->next)
1756	{	1934	{
1757	#if _WIN32	1935	#if _WIN32
1758	signal (w->signum, sighandler);	1936	signal (w->signum, sighandler);
…		…
1764	sigaction (w->signum, &sa, 0);	1942	sigaction (w->signum, &sa, 0);
1765	#endif	1943	#endif
1766	}	1944	}
1767	}	1945	}
1768		1946
1769	void	1947	void noinline
1770	ev_signal_stop (EV_P_ ev_signal *w)	1948	ev_signal_stop (EV_P_ ev_signal *w)
1771	{	1949	{
1772	clear_pending (EV_A_ (W)w);	1950	clear_pending (EV_A_ (W)w);
1773	if (expect_false (!ev_is_active (w)))	1951	if (expect_false (!ev_is_active (w)))
1774	return;	1952	return;
1775		1953
1776	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1954	wlist_del (&signals [w->signum - 1].head, (WL)w);
1777	ev_stop (EV_A_ (W)w);	1955	ev_stop (EV_A_ (W)w);
1778		1956
1779	if (!signals [w->signum - 1].head)	1957	if (!signals [w->signum - 1].head)
1780	signal (w->signum, SIG_DFL);	1958	signal (w->signum, SIG_DFL);
1781	}	1959	}
…		…
1788	#endif	1966	#endif
1789	if (expect_false (ev_is_active (w)))	1967	if (expect_false (ev_is_active (w)))
1790	return;	1968	return;
1791		1969
1792	ev_start (EV_A_ (W)w, 1);	1970	ev_start (EV_A_ (W)w, 1);
1793	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1971	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1794	}	1972	}
1795		1973
1796	void	1974	void
1797	ev_child_stop (EV_P_ ev_child *w)	1975	ev_child_stop (EV_P_ ev_child *w)
1798	{	1976	{
1799	clear_pending (EV_A_ (W)w);	1977	clear_pending (EV_A_ (W)w);
1800	if (expect_false (!ev_is_active (w)))	1978	if (expect_false (!ev_is_active (w)))
1801	return;	1979	return;
1802		1980
1803	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1981	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1804	ev_stop (EV_A_ (W)w);	1982	ev_stop (EV_A_ (W)w);
1805	}	1983	}
1806		1984
1807	#if EV_STAT_ENABLE	1985	#if EV_STAT_ENABLE
1808		1986
…		…
2150		2328
2151	#if EV_EMBED_ENABLE	2329	#if EV_EMBED_ENABLE
2152	void noinline	2330	void noinline
2153	ev_embed_sweep (EV_P_ ev_embed *w)	2331	ev_embed_sweep (EV_P_ ev_embed *w)
2154	{	2332	{
2155	ev_loop (w->loop, EVLOOP_NONBLOCK);	2333	ev_loop (w->other, EVLOOP_NONBLOCK);
2156	}	2334	}
2157		2335
2158	static void	2336	static void
2159	embed_cb (EV_P_ ev_io *io, int revents)	2337	embed_io_cb (EV_P_ ev_io *io, int revents)
2160	{	2338	{
2161	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2339	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2162		2340
2163	if (ev_cb (w))	2341	if (ev_cb (w))
2164	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2342	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2165	else	2343	else
2166	ev_embed_sweep (loop, w);	2344	ev_loop (w->other, EVLOOP_NONBLOCK);
2167	}	2345	}
		2346
		2347	static void
		2348	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2349	{
		2350	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2351
		2352	{
		2353	struct ev_loop *loop = w->other;
		2354
		2355	while (fdchangecnt)
		2356	{
		2357	fd_reify (EV_A);
		2358	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2359	}
		2360	}
		2361	}
		2362
		2363	#if 0
		2364	static void
		2365	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2366	{
		2367	ev_idle_stop (EV_A_ idle);
		2368	}
		2369	#endif
2168		2370
2169	void	2371	void
2170	ev_embed_start (EV_P_ ev_embed *w)	2372	ev_embed_start (EV_P_ ev_embed *w)
2171	{	2373	{
2172	if (expect_false (ev_is_active (w)))	2374	if (expect_false (ev_is_active (w)))
2173	return;	2375	return;
2174		2376
2175	{	2377	{
2176	struct ev_loop *loop = w->loop;	2378	struct ev_loop *loop = w->other;
2177	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2379	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2178	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2380	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2179	}	2381	}
2180		2382
2181	ev_set_priority (&w->io, ev_priority (w));	2383	ev_set_priority (&w->io, ev_priority (w));
2182	ev_io_start (EV_A_ &w->io);	2384	ev_io_start (EV_A_ &w->io);
2183		2385
		2386	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2387	ev_set_priority (&w->prepare, EV_MINPRI);
		2388	ev_prepare_start (EV_A_ &w->prepare);
		2389
		2390	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2391
2184	ev_start (EV_A_ (W)w, 1);	2392	ev_start (EV_A_ (W)w, 1);
2185	}	2393	}
2186		2394
2187	void	2395	void
2188	ev_embed_stop (EV_P_ ev_embed *w)	2396	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2190	clear_pending (EV_A_ (W)w);	2398	clear_pending (EV_A_ (W)w);
2191	if (expect_false (!ev_is_active (w)))	2399	if (expect_false (!ev_is_active (w)))
2192	return;	2400	return;
2193		2401
2194	ev_io_stop (EV_A_ &w->io);	2402	ev_io_stop (EV_A_ &w->io);
		2403	ev_prepare_stop (EV_A_ &w->prepare);
2195		2404
2196	ev_stop (EV_A_ (W)w);	2405	ev_stop (EV_A_ (W)w);
2197	}	2406	}
2198	#endif	2407	#endif
2199		2408
…		…
2224		2433
2225	ev_stop (EV_A_ (W)w);	2434	ev_stop (EV_A_ (W)w);
2226	}	2435	}
2227	#endif	2436	#endif
2228		2437
		2438	#if EV_ASYNC_ENABLE
		2439	void
		2440	ev_async_start (EV_P_ ev_async *w)
		2441	{
		2442	if (expect_false (ev_is_active (w)))
		2443	return;
		2444
		2445	evpipe_init (EV_A);
		2446
		2447	ev_start (EV_A_ (W)w, ++asynccnt);
		2448	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2449	asyncs [asynccnt - 1] = w;
		2450	}
		2451
		2452	void
		2453	ev_async_stop (EV_P_ ev_async *w)
		2454	{
		2455	clear_pending (EV_A_ (W)w);
		2456	if (expect_false (!ev_is_active (w)))
		2457	return;
		2458
		2459	{
		2460	int active = ((W)w)->active;
		2461	asyncs [active - 1] = asyncs [--asynccnt];
		2462	((W)asyncs [active - 1])->active = active;
		2463	}
		2464
		2465	ev_stop (EV_A_ (W)w);
		2466	}
		2467
		2468	void
		2469	ev_async_send (EV_P_ ev_async *w)
		2470	{
		2471	w->sent = 1;
		2472	evpipe_write (EV_A_ 0, 1);
		2473	}
		2474	#endif
		2475
2229	/*****************************************************************************/	2476	/*****************************************************************************/
2230		2477
2231	struct ev_once	2478	struct ev_once
2232	{	2479	{
2233	ev_io io;	2480	ev_io io;
…		…
2288	ev_timer_set (&once->to, timeout, 0.);	2535	ev_timer_set (&once->to, timeout, 0.);
2289	ev_timer_start (EV_A_ &once->to);	2536	ev_timer_start (EV_A_ &once->to);
2290	}	2537	}
2291	}	2538	}
2292		2539
		2540	#if EV_MULTIPLICITY
		2541	#include "ev_wrap.h"
		2542	#endif
		2543
2293	#ifdef __cplusplus	2544	#ifdef __cplusplus
2294	}	2545	}
2295	#endif	2546	#endif
2296		2547

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