[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.176 by root, Tue Dec 11 04:31:55 2007 UTC vs.
Revision 1.220 by root, Sun Apr 6 09:53:17 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
212	# define EV_USE_INOTIFY 0
213	#endif
214
215	#if EV_USE_INOTIFY	271	#if EV_USE_EVENTFD
216	# include <sys/inotify.h>	272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		273	int eventfd (unsigned int initval, int flags);
217	#endif	274	#endif
218		275
219	/**/	276	/**/
220		277
221	/*	278	/*
222	* This is used to avoid floating point rounding problems.	279	* This is used to avoid floating point rounding problems.
223	* It is added to ev_rt_now when scheduling periodics	280	* It is added to ev_rt_now when scheduling periodics
224	* to ensure progress, time-wise, even when rounding	281	* to ensure progress, time-wise, even when rounding
225	* errors are against us.	282	* errors are against us.
226	* This value is good at least till the year 4000	283	* This value is good at least till the year 4000.
227	* and intervals up to 20 years.
228	* Better solutions welcome.	284	* Better solutions welcome.
229	*/	285	*/
230	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	286	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
231		287
232	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	288	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
233	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	289	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
234	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */	290	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
235		291
236	#if __GNUC__ >= 3	292	#if __GNUC__ >= 4
237	# define expect(expr,value) __builtin_expect ((expr),(value))	293	# define expect(expr,value) __builtin_expect ((expr),(value))
238	# define noinline __attribute__ ((noinline))	294	# define noinline __attribute__ ((noinline))
239	#else	295	#else
240	# define expect(expr,value) (expr)	296	# define expect(expr,value) (expr)
241	# define noinline	297	# define noinline
…		…
262		318
263	typedef ev_watcher *W;	319	typedef ev_watcher *W;
264	typedef ev_watcher_list *WL;	320	typedef ev_watcher_list *WL;
265	typedef ev_watcher_time *WT;	321	typedef ev_watcher_time *WT;
266		322
		323	#if EV_USE_MONOTONIC
		324	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		325	/* giving it a reasonably high chance of working on typical architetcures */
267	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	326	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		327	#endif
268		328
269	#ifdef _WIN32	329	#ifdef _WIN32
270	# include "ev_win32.c"	330	# include "ev_win32.c"
271	#endif	331	#endif
272		332
…		…
408	{	468	{
409	return ev_rt_now;	469	return ev_rt_now;
410	}	470	}
411	#endif	471	#endif
412		472
		473	void
		474	ev_sleep (ev_tstamp delay)
		475	{
		476	if (delay > 0.)
		477	{
		478	#if EV_USE_NANOSLEEP
		479	struct timespec ts;
		480
		481	ts.tv_sec = (time_t)delay;
		482	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		483
		484	nanosleep (&ts, 0);
		485	#elif defined(_WIN32)
		486	Sleep ((unsigned long)(delay * 1e3));
		487	#else
		488	struct timeval tv;
		489
		490	tv.tv_sec = (time_t)delay;
		491	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		492
		493	select (0, 0, 0, 0, &tv);
		494	#endif
		495	}
		496	}
		497
		498	/*****************************************************************************/
		499
413	int inline_size	500	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	501	array_nextsize (int elem, int cur, int cnt)
415	{	502	{
416	int ncur = cur + 1;	503	int ncur = cur + 1;
417		504
…		…
477	pendings [pri][w_->pending - 1].w = w_;	564	pendings [pri][w_->pending - 1].w = w_;
478	pendings [pri][w_->pending - 1].events = revents;	565	pendings [pri][w_->pending - 1].events = revents;
479	}	566	}
480	}	567	}
481		568
482	void inline_size	569	void inline_speed
483	queue_events (EV_P_ W *events, int eventcnt, int type)	570	queue_events (EV_P_ W *events, int eventcnt, int type)
484	{	571	{
485	int i;	572	int i;
486		573
487	for (i = 0; i < eventcnt; ++i)	574	for (i = 0; i < eventcnt; ++i)
…		…
534	{	621	{
535	int fd = fdchanges [i];	622	int fd = fdchanges [i];
536	ANFD *anfd = anfds + fd;	623	ANFD *anfd = anfds + fd;
537	ev_io *w;	624	ev_io *w;
538		625
539	int events = 0;	626	unsigned char events = 0;
540		627
541	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	628	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
542	events \|= w->events;	629	events \|= (unsigned char)w->events;
543		630
544	#if EV_SELECT_IS_WINSOCKET	631	#if EV_SELECT_IS_WINSOCKET
545	if (events)	632	if (events)
546	{	633	{
547	unsigned long argp;	634	unsigned long argp;
		635	#ifdef EV_FD_TO_WIN32_HANDLE
		636	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		637	#else
548	anfd->handle = _get_osfhandle (fd);	638	anfd->handle = _get_osfhandle (fd);
		639	#endif
549	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	640	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550	}	641	}
551	#endif	642	#endif
552		643
		644	{
		645	unsigned char o_events = anfd->events;
		646	unsigned char o_reify = anfd->reify;
		647
553	anfd->reify = 0;	648	anfd->reify = 0;
554
555	backend_modify (EV_A_ fd, anfd->events, events);
556	anfd->events = events;	649	anfd->events = events;
		650
		651	if (o_events != events \|\| o_reify & EV_IOFDSET)
		652	backend_modify (EV_A_ fd, o_events, events);
		653	}
557	}	654	}
558		655
559	fdchangecnt = 0;	656	fdchangecnt = 0;
560	}	657	}
561		658
562	void inline_size	659	void inline_size
563	fd_change (EV_P_ int fd)	660	fd_change (EV_P_ int fd, int flags)
564	{	661	{
565	if (expect_false (anfds [fd].reify))	662	unsigned char reify = anfds [fd].reify;
566	return;
567
568	anfds [fd].reify = 1;	663	anfds [fd].reify \|= flags;
569		664
		665	if (expect_true (!reify))
		666	{
570	++fdchangecnt;	667	++fdchangecnt;
571	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	668	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
572	fdchanges [fdchangecnt - 1] = fd;	669	fdchanges [fdchangecnt - 1] = fd;
		670	}
573	}	671	}
574		672
575	void inline_speed	673	void inline_speed
576	fd_kill (EV_P_ int fd)	674	fd_kill (EV_P_ int fd)
577	{	675	{
…		…
628		726
629	for (fd = 0; fd < anfdmax; ++fd)	727	for (fd = 0; fd < anfdmax; ++fd)
630	if (anfds [fd].events)	728	if (anfds [fd].events)
631	{	729	{
632	anfds [fd].events = 0;	730	anfds [fd].events = 0;
633	fd_change (EV_A_ fd);	731	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
634	}	732	}
635	}	733	}
636		734
637	/*****************************************************************************/	735	/*****************************************************************************/
638		736
639	void inline_speed	737	void inline_speed
640	upheap (WT *heap, int k)	738	upheap (WT *heap, int k)
641	{	739	{
642	WT w = heap [k];	740	WT w = heap [k];
643		741
644	while (k && heap [k >> 1]->at > w->at)	742	while (k)
645	{	743	{
		744	int p = (k - 1) >> 1;
		745
		746	if (heap [p]->at <= w->at)
		747	break;
		748
646	heap [k] = heap [k >> 1];	749	heap [k] = heap [p];
647	((W)heap [k])->active = k + 1;	750	((W)heap [k])->active = k + 1;
648	k >>= 1;	751	k = p;
649	}	752	}
650		753
651	heap [k] = w;	754	heap [k] = w;
652	((W)heap [k])->active = k + 1;	755	((W)heap [k])->active = k + 1;
653
654	}	756	}
655		757
656	void inline_speed	758	void inline_speed
657	downheap (WT *heap, int N, int k)	759	downheap (WT *heap, int N, int k)
658	{	760	{
659	WT w = heap [k];	761	WT w = heap [k];
660		762
661	while (k < (N >> 1))	763	for (;;)
662	{	764	{
663	int j = k << 1;	765	int c = (k << 1) + 1;
664		766
665	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	767	if (c >= N)
666	++j;
667
668	if (w->at <= heap [j]->at)
669	break;	768	break;
670		769
		770	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		771	? 1 : 0;
		772
		773	if (w->at <= heap [c]->at)
		774	break;
		775
671	heap [k] = heap [j];	776	heap [k] = heap [c];
672	((W)heap [k])->active = k + 1;	777	((W)heap [k])->active = k + 1;
		778
673	k = j;	779	k = c;
674	}	780	}
675		781
676	heap [k] = w;	782	heap [k] = w;
677	((W)heap [k])->active = k + 1;	783	((W)heap [k])->active = k + 1;
678	}	784	}
…		…
687	/*****************************************************************************/	793	/*****************************************************************************/
688		794
689	typedef struct	795	typedef struct
690	{	796	{
691	WL head;	797	WL head;
692	sig_atomic_t volatile gotsig;	798	EV_ATOMIC_T gotsig;
693	} ANSIG;	799	} ANSIG;
694		800
695	static ANSIG *signals;	801	static ANSIG *signals;
696	static int signalmax;	802	static int signalmax;
697		803
698	static int sigpipe [2];	804	static EV_ATOMIC_T gotsig;
699	static sig_atomic_t volatile gotsig;
700	static ev_io sigev;
701		805
702	void inline_size	806	void inline_size
703	signals_init (ANSIG *base, int count)	807	signals_init (ANSIG *base, int count)
704	{	808	{
705	while (count--)	809	while (count--)
…		…
709		813
710	++base;	814	++base;
711	}	815	}
712	}	816	}
713		817
714	static void	818	/*****************************************************************************/
715	sighandler (int signum)
716	{
717	#if _WIN32
718	signal (signum, sighandler);
719	#endif
720
721	signals [signum - 1].gotsig = 1;
722
723	if (!gotsig)
724	{
725	int old_errno = errno;
726	gotsig = 1;
727	write (sigpipe [1], &signum, 1);
728	errno = old_errno;
729	}
730	}
731
732	void noinline
733	ev_feed_signal_event (EV_P_ int signum)
734	{
735	WL w;
736
737	#if EV_MULTIPLICITY
738	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
739	#endif
740
741	--signum;
742
743	if (signum < 0 \|\| signum >= signalmax)
744	return;
745
746	signals [signum].gotsig = 0;
747
748	for (w = signals [signum].head; w; w = w->next)
749	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
750	}
751
752	static void
753	sigcb (EV_P_ ev_io *iow, int revents)
754	{
755	int signum;
756
757	read (sigpipe [0], &revents, 1);
758	gotsig = 0;
759
760	for (signum = signalmax; signum--; )
761	if (signals [signum].gotsig)
762	ev_feed_signal_event (EV_A_ signum + 1);
763	}
764		819
765	void inline_speed	820	void inline_speed
766	fd_intern (int fd)	821	fd_intern (int fd)
767	{	822	{
768	#ifdef _WIN32	823	#ifdef _WIN32
…		…
773	fcntl (fd, F_SETFL, O_NONBLOCK);	828	fcntl (fd, F_SETFL, O_NONBLOCK);
774	#endif	829	#endif
775	}	830	}
776		831
777	static void noinline	832	static void noinline
778	siginit (EV_P)	833	evpipe_init (EV_P)
779	{	834	{
		835	if (!ev_is_active (&pipeev))
		836	{
		837	#if EV_USE_EVENTFD
		838	if ((evfd = eventfd (0, 0)) >= 0)
		839	{
		840	evpipe [0] = -1;
		841	fd_intern (evfd);
		842	ev_io_set (&pipeev, evfd, EV_READ);
		843	}
		844	else
		845	#endif
		846	{
		847	while (pipe (evpipe))
		848	syserr ("(libev) error creating signal/async pipe");
		849
780	fd_intern (sigpipe [0]);	850	fd_intern (evpipe [0]);
781	fd_intern (sigpipe [1]);	851	fd_intern (evpipe [1]);
		852	ev_io_set (&pipeev, evpipe [0], EV_READ);
		853	}
782		854
783	ev_io_set (&sigev, sigpipe [0], EV_READ);
784	ev_io_start (EV_A_ &sigev);	855	ev_io_start (EV_A_ &pipeev);
785	ev_unref (EV_A); /* child watcher should not keep loop alive */	856	ev_unref (EV_A); /* watcher should not keep loop alive */
		857	}
		858	}
		859
		860	void inline_size
		861	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		862	{
		863	if (!*flag)
		864	{
		865	int old_errno = errno; /* save errno because write might clobber it */
		866
		867	*flag = 1;
		868
		869	#if EV_USE_EVENTFD
		870	if (evfd >= 0)
		871	{
		872	uint64_t counter = 1;
		873	write (evfd, &counter, sizeof (uint64_t));
		874	}
		875	else
		876	#endif
		877	write (evpipe [1], &old_errno, 1);
		878
		879	errno = old_errno;
		880	}
		881	}
		882
		883	static void
		884	pipecb (EV_P_ ev_io *iow, int revents)
		885	{
		886	#if EV_USE_EVENTFD
		887	if (evfd >= 0)
		888	{
		889	uint64_t counter = 1;
		890	read (evfd, &counter, sizeof (uint64_t));
		891	}
		892	else
		893	#endif
		894	{
		895	char dummy;
		896	read (evpipe [0], &dummy, 1);
		897	}
		898
		899	if (gotsig && ev_is_default_loop (EV_A))
		900	{
		901	int signum;
		902	gotsig = 0;
		903
		904	for (signum = signalmax; signum--; )
		905	if (signals [signum].gotsig)
		906	ev_feed_signal_event (EV_A_ signum + 1);
		907	}
		908
		909	#if EV_ASYNC_ENABLE
		910	if (gotasync)
		911	{
		912	int i;
		913	gotasync = 0;
		914
		915	for (i = asynccnt; i--; )
		916	if (asyncs [i]->sent)
		917	{
		918	asyncs [i]->sent = 0;
		919	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		920	}
		921	}
		922	#endif
786	}	923	}
787		924
788	/*****************************************************************************/	925	/*****************************************************************************/
789		926
		927	static void
		928	ev_sighandler (int signum)
		929	{
		930	#if EV_MULTIPLICITY
		931	struct ev_loop *loop = &default_loop_struct;
		932	#endif
		933
		934	#if _WIN32
		935	signal (signum, ev_sighandler);
		936	#endif
		937
		938	signals [signum - 1].gotsig = 1;
		939	evpipe_write (EV_A_ &gotsig);
		940	}
		941
		942	void noinline
		943	ev_feed_signal_event (EV_P_ int signum)
		944	{
		945	WL w;
		946
		947	#if EV_MULTIPLICITY
		948	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		949	#endif
		950
		951	--signum;
		952
		953	if (signum < 0 \|\| signum >= signalmax)
		954	return;
		955
		956	signals [signum].gotsig = 0;
		957
		958	for (w = signals [signum].head; w; w = w->next)
		959	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		960	}
		961
		962	/*****************************************************************************/
		963
790	static ev_child *childs [EV_PID_HASHSIZE];	964	static WL childs [EV_PID_HASHSIZE];
791		965
792	#ifndef _WIN32	966	#ifndef _WIN32
793		967
794	static ev_signal childev;	968	static ev_signal childev;
795		969
		970	#ifndef WIFCONTINUED
		971	# define WIFCONTINUED(status) 0
		972	#endif
		973
796	void inline_speed	974	void inline_speed
797	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	975	child_reap (EV_P_ int chain, int pid, int status)
798	{	976	{
799	ev_child *w;	977	ev_child *w;
		978	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
800		979
801	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	980	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		981	{
802	if (w->pid == pid \|\| !w->pid)	982	if ((w->pid == pid \|\| !w->pid)
		983	&& (!traced \|\| (w->flags & 1)))
803	{	984	{
804	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	985	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
805	w->rpid = pid;	986	w->rpid = pid;
806	w->rstatus = status;	987	w->rstatus = status;
807	ev_feed_event (EV_A_ (W)w, EV_CHILD);	988	ev_feed_event (EV_A_ (W)w, EV_CHILD);
808	}	989	}
		990	}
809	}	991	}
810		992
811	#ifndef WCONTINUED	993	#ifndef WCONTINUED
812	# define WCONTINUED 0	994	# define WCONTINUED 0
813	#endif	995	#endif
…		…
822	if (!WCONTINUED	1004	if (!WCONTINUED
823	\|\| errno != EINVAL	1005	\|\| errno != EINVAL
824	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1006	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
825	return;	1007	return;
826		1008
827	/* make sure we are called again until all childs have been reaped */	1009	/* make sure we are called again until all children have been reaped */
828	/* we need to do it this way so that the callback gets called before we continue */	1010	/* we need to do it this way so that the callback gets called before we continue */
829	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1011	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
830		1012
831	child_reap (EV_A_ sw, pid, pid, status);	1013	child_reap (EV_A_ pid, pid, status);
832	if (EV_PID_HASHSIZE > 1)	1014	if (EV_PID_HASHSIZE > 1)
833	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1015	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
834	}	1016	}
835		1017
836	#endif	1018	#endif
837		1019
838	/*****************************************************************************/	1020	/*****************************************************************************/
…		…
910	}	1092	}
911		1093
912	unsigned int	1094	unsigned int
913	ev_embeddable_backends (void)	1095	ev_embeddable_backends (void)
914	{	1096	{
915	return EVBACKEND_EPOLL	1097	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
916	\| EVBACKEND_KQUEUE	1098
917	\| EVBACKEND_PORT;	1099	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1100	/* please fix it and tell me how to detect the fix */
		1101	flags &= ~EVBACKEND_EPOLL;
		1102
		1103	return flags;
918	}	1104	}
919		1105
920	unsigned int	1106	unsigned int
921	ev_backend (EV_P)	1107	ev_backend (EV_P)
922	{	1108	{
…		…
925		1111
926	unsigned int	1112	unsigned int
927	ev_loop_count (EV_P)	1113	ev_loop_count (EV_P)
928	{	1114	{
929	return loop_count;	1115	return loop_count;
		1116	}
		1117
		1118	void
		1119	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1120	{
		1121	io_blocktime = interval;
		1122	}
		1123
		1124	void
		1125	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1126	{
		1127	timeout_blocktime = interval;
930	}	1128	}
931		1129
932	static void noinline	1130	static void noinline
933	loop_init (EV_P_ unsigned int flags)	1131	loop_init (EV_P_ unsigned int flags)
934	{	1132	{
…		…
940	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1138	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
941	have_monotonic = 1;	1139	have_monotonic = 1;
942	}	1140	}
943	#endif	1141	#endif
944		1142
945	ev_rt_now = ev_time ();	1143	ev_rt_now = ev_time ();
946	mn_now = get_clock ();	1144	mn_now = get_clock ();
947	now_floor = mn_now;	1145	now_floor = mn_now;
948	rtmn_diff = ev_rt_now - mn_now;	1146	rtmn_diff = ev_rt_now - mn_now;
		1147
		1148	io_blocktime = 0.;
		1149	timeout_blocktime = 0.;
		1150	backend = 0;
		1151	backend_fd = -1;
		1152	gotasync = 0;
		1153	#if EV_USE_INOTIFY
		1154	fs_fd = -2;
		1155	#endif
949		1156
950	/* pid check not overridable via env */	1157	/* pid check not overridable via env */
951	#ifndef _WIN32	1158	#ifndef _WIN32
952	if (flags & EVFLAG_FORKCHECK)	1159	if (flags & EVFLAG_FORKCHECK)
953	curpid = getpid ();	1160	curpid = getpid ();
…		…
959	flags = atoi (getenv ("LIBEV_FLAGS"));	1166	flags = atoi (getenv ("LIBEV_FLAGS"));
960		1167
961	if (!(flags & 0x0000ffffUL))	1168	if (!(flags & 0x0000ffffUL))
962	flags \|= ev_recommended_backends ();	1169	flags \|= ev_recommended_backends ();
963		1170
964	backend = 0;
965	backend_fd = -1;
966	#if EV_USE_INOTIFY
967	fs_fd = -2;
968	#endif
969
970	#if EV_USE_PORT	1171	#if EV_USE_PORT
971	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1172	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
972	#endif	1173	#endif
973	#if EV_USE_KQUEUE	1174	#if EV_USE_KQUEUE
974	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1175	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
981	#endif	1182	#endif
982	#if EV_USE_SELECT	1183	#if EV_USE_SELECT
983	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1184	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
984	#endif	1185	#endif
985		1186
986	ev_init (&sigev, sigcb);	1187	ev_init (&pipeev, pipecb);
987	ev_set_priority (&sigev, EV_MAXPRI);	1188	ev_set_priority (&pipeev, EV_MAXPRI);
988	}	1189	}
989	}	1190	}
990		1191
991	static void noinline	1192	static void noinline
992	loop_destroy (EV_P)	1193	loop_destroy (EV_P)
993	{	1194	{
994	int i;	1195	int i;
		1196
		1197	if (ev_is_active (&pipeev))
		1198	{
		1199	ev_ref (EV_A); /* signal watcher */
		1200	ev_io_stop (EV_A_ &pipeev);
		1201
		1202	#if EV_USE_EVENTFD
		1203	if (evfd >= 0)
		1204	close (evfd);
		1205	#endif
		1206
		1207	if (evpipe [0] >= 0)
		1208	{
		1209	close (evpipe [0]);
		1210	close (evpipe [1]);
		1211	}
		1212	}
995		1213
996	#if EV_USE_INOTIFY	1214	#if EV_USE_INOTIFY
997	if (fs_fd >= 0)	1215	if (fs_fd >= 0)
998	close (fs_fd);	1216	close (fs_fd);
999	#endif	1217	#endif
…		…
1022	array_free (pending, [i]);	1240	array_free (pending, [i]);
1023	#if EV_IDLE_ENABLE	1241	#if EV_IDLE_ENABLE
1024	array_free (idle, [i]);	1242	array_free (idle, [i]);
1025	#endif	1243	#endif
1026	}	1244	}
		1245
		1246	ev_free (anfds); anfdmax = 0;
1027		1247
1028	/* have to use the microsoft-never-gets-it-right macro */	1248	/* have to use the microsoft-never-gets-it-right macro */
1029	array_free (fdchange, EMPTY);	1249	array_free (fdchange, EMPTY);
1030	array_free (timer, EMPTY);	1250	array_free (timer, EMPTY);
1031	#if EV_PERIODIC_ENABLE	1251	#if EV_PERIODIC_ENABLE
1032	array_free (periodic, EMPTY);	1252	array_free (periodic, EMPTY);
1033	#endif	1253	#endif
		1254	#if EV_FORK_ENABLE
		1255	array_free (fork, EMPTY);
		1256	#endif
1034	array_free (prepare, EMPTY);	1257	array_free (prepare, EMPTY);
1035	array_free (check, EMPTY);	1258	array_free (check, EMPTY);
		1259	#if EV_ASYNC_ENABLE
		1260	array_free (async, EMPTY);
		1261	#endif
1036		1262
1037	backend = 0;	1263	backend = 0;
1038	}	1264	}
1039		1265
1040	void inline_size infy_fork (EV_P);	1266	void inline_size infy_fork (EV_P);
…		…
1053	#endif	1279	#endif
1054	#if EV_USE_INOTIFY	1280	#if EV_USE_INOTIFY
1055	infy_fork (EV_A);	1281	infy_fork (EV_A);
1056	#endif	1282	#endif
1057		1283
1058	if (ev_is_active (&sigev))	1284	if (ev_is_active (&pipeev))
1059	{	1285	{
1060	/* default loop */	1286	/* this "locks" the handlers against writing to the pipe */
		1287	/* while we modify the fd vars */
		1288	gotsig = 1;
		1289	#if EV_ASYNC_ENABLE
		1290	gotasync = 1;
		1291	#endif
1061		1292
1062	ev_ref (EV_A);	1293	ev_ref (EV_A);
1063	ev_io_stop (EV_A_ &sigev);	1294	ev_io_stop (EV_A_ &pipeev);
		1295
		1296	#if EV_USE_EVENTFD
		1297	if (evfd >= 0)
		1298	close (evfd);
		1299	#endif
		1300
		1301	if (evpipe [0] >= 0)
		1302	{
1064	close (sigpipe [0]);	1303	close (evpipe [0]);
1065	close (sigpipe [1]);	1304	close (evpipe [1]);
		1305	}
1066		1306
1067	while (pipe (sigpipe))
1068	syserr ("(libev) error creating pipe");
1069
1070	siginit (EV_A);	1307	evpipe_init (EV_A);
		1308	/* now iterate over everything, in case we missed something */
		1309	pipecb (EV_A_ &pipeev, EV_READ);
1071	}	1310	}
1072		1311
1073	postfork = 0;	1312	postfork = 0;
1074	}	1313	}
1075		1314
…		…
1097	}	1336	}
1098		1337
1099	void	1338	void
1100	ev_loop_fork (EV_P)	1339	ev_loop_fork (EV_P)
1101	{	1340	{
1102	postfork = 1;	1341	postfork = 1; /* must be in line with ev_default_fork */
1103	}	1342	}
1104		1343
1105	#endif	1344	#endif
1106		1345
1107	#if EV_MULTIPLICITY	1346	#if EV_MULTIPLICITY
…		…
1110	#else	1349	#else
1111	int	1350	int
1112	ev_default_loop (unsigned int flags)	1351	ev_default_loop (unsigned int flags)
1113	#endif	1352	#endif
1114	{	1353	{
1115	if (sigpipe [0] == sigpipe [1])
1116	if (pipe (sigpipe))
1117	return 0;
1118
1119	if (!ev_default_loop_ptr)	1354	if (!ev_default_loop_ptr)
1120	{	1355	{
1121	#if EV_MULTIPLICITY	1356	#if EV_MULTIPLICITY
1122	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1357	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1123	#else	1358	#else
…		…
1126		1361
1127	loop_init (EV_A_ flags);	1362	loop_init (EV_A_ flags);
1128		1363
1129	if (ev_backend (EV_A))	1364	if (ev_backend (EV_A))
1130	{	1365	{
1131	siginit (EV_A);
1132
1133	#ifndef _WIN32	1366	#ifndef _WIN32
1134	ev_signal_init (&childev, childcb, SIGCHLD);	1367	ev_signal_init (&childev, childcb, SIGCHLD);
1135	ev_set_priority (&childev, EV_MAXPRI);	1368	ev_set_priority (&childev, EV_MAXPRI);
1136	ev_signal_start (EV_A_ &childev);	1369	ev_signal_start (EV_A_ &childev);
1137	ev_unref (EV_A); /* child watcher should not keep loop alive */	1370	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1154	#ifndef _WIN32	1387	#ifndef _WIN32
1155	ev_ref (EV_A); /* child watcher */	1388	ev_ref (EV_A); /* child watcher */
1156	ev_signal_stop (EV_A_ &childev);	1389	ev_signal_stop (EV_A_ &childev);
1157	#endif	1390	#endif
1158		1391
1159	ev_ref (EV_A); /* signal watcher */
1160	ev_io_stop (EV_A_ &sigev);
1161
1162	close (sigpipe [0]); sigpipe [0] = 0;
1163	close (sigpipe [1]); sigpipe [1] = 0;
1164
1165	loop_destroy (EV_A);	1392	loop_destroy (EV_A);
1166	}	1393	}
1167		1394
1168	void	1395	void
1169	ev_default_fork (void)	1396	ev_default_fork (void)
…		…
1171	#if EV_MULTIPLICITY	1398	#if EV_MULTIPLICITY
1172	struct ev_loop *loop = ev_default_loop_ptr;	1399	struct ev_loop *loop = ev_default_loop_ptr;
1173	#endif	1400	#endif
1174		1401
1175	if (backend)	1402	if (backend)
1176	postfork = 1;	1403	postfork = 1; /* must be in line with ev_loop_fork */
1177	}	1404	}
1178		1405
1179	/*****************************************************************************/	1406	/*****************************************************************************/
1180		1407
1181	void	1408	void
…		…
1207	void inline_size	1434	void inline_size
1208	timers_reify (EV_P)	1435	timers_reify (EV_P)
1209	{	1436	{
1210	while (timercnt && ((WT)timers [0])->at <= mn_now)	1437	while (timercnt && ((WT)timers [0])->at <= mn_now)
1211	{	1438	{
1212	ev_timer *w = timers [0];	1439	ev_timer w = (ev_timer )timers [0];
1213		1440
1214	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1441	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1215		1442
1216	/* first reschedule or stop timer */	1443	/* first reschedule or stop timer */
1217	if (w->repeat)	1444	if (w->repeat)
…		…
1220		1447
1221	((WT)w)->at += w->repeat;	1448	((WT)w)->at += w->repeat;
1222	if (((WT)w)->at < mn_now)	1449	if (((WT)w)->at < mn_now)
1223	((WT)w)->at = mn_now;	1450	((WT)w)->at = mn_now;
1224		1451
1225	downheap ((WT *)timers, timercnt, 0);	1452	downheap (timers, timercnt, 0);
1226	}	1453	}
1227	else	1454	else
1228	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1455	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1229		1456
1230	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1457	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1235	void inline_size	1462	void inline_size
1236	periodics_reify (EV_P)	1463	periodics_reify (EV_P)
1237	{	1464	{
1238	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1465	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1239	{	1466	{
1240	ev_periodic *w = periodics [0];	1467	ev_periodic w = (ev_periodic )periodics [0];
1241		1468
1242	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1469	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1243		1470
1244	/* first reschedule or stop timer */	1471	/* first reschedule or stop timer */
1245	if (w->reschedule_cb)	1472	if (w->reschedule_cb)
1246	{	1473	{
1247	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1474	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1248	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1475	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1249	downheap ((WT *)periodics, periodiccnt, 0);	1476	downheap (periodics, periodiccnt, 0);
1250	}	1477	}
1251	else if (w->interval)	1478	else if (w->interval)
1252	{	1479	{
1253	((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval;	1480	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1481	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1254	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1482	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1255	downheap ((WT *)periodics, periodiccnt, 0);	1483	downheap (periodics, periodiccnt, 0);
1256	}	1484	}
1257	else	1485	else
1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1486	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259		1487
1260	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1488	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1267	int i;	1495	int i;
1268		1496
1269	/* adjust periodics after time jump */	1497	/* adjust periodics after time jump */
1270	for (i = 0; i < periodiccnt; ++i)	1498	for (i = 0; i < periodiccnt; ++i)
1271	{	1499	{
1272	ev_periodic *w = periodics [i];	1500	ev_periodic w = (ev_periodic )periodics [i];
1273		1501
1274	if (w->reschedule_cb)	1502	if (w->reschedule_cb)
1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1503	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276	else if (w->interval)	1504	else if (w->interval)
1277	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1505	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278	}	1506	}
1279		1507
1280	/* now rebuild the heap */	1508	/* now rebuild the heap */
1281	for (i = periodiccnt >> 1; i--; )	1509	for (i = periodiccnt >> 1; i--; )
1282	downheap ((WT *)periodics, periodiccnt, i);	1510	downheap (periodics, periodiccnt, i);
1283	}	1511	}
1284	#endif	1512	#endif
1285		1513
1286	#if EV_IDLE_ENABLE	1514	#if EV_IDLE_ENABLE
1287	void inline_size	1515	void inline_size
…		…
1304	}	1532	}
1305	}	1533	}
1306	}	1534	}
1307	#endif	1535	#endif
1308		1536
1309	int inline_size	1537	void inline_speed
1310	time_update_monotonic (EV_P)	1538	time_update (EV_P_ ev_tstamp max_block)
1311	{	1539	{
		1540	int i;
		1541
		1542	#if EV_USE_MONOTONIC
		1543	if (expect_true (have_monotonic))
		1544	{
		1545	ev_tstamp odiff = rtmn_diff;
		1546
1312	mn_now = get_clock ();	1547	mn_now = get_clock ();
1313		1548
		1549	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1550	/* interpolate in the meantime */
1314	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1551	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315	{	1552	{
1316	ev_rt_now = rtmn_diff + mn_now;	1553	ev_rt_now = rtmn_diff + mn_now;
1317	return 0;	1554	return;
1318	}	1555	}
1319	else	1556
1320	{
1321	now_floor = mn_now;	1557	now_floor = mn_now;
1322	ev_rt_now = ev_time ();	1558	ev_rt_now = ev_time ();
1323	return 1;
1324	}
1325	}
1326		1559
1327	void inline_size	1560	/* loop a few times, before making important decisions.
1328	time_update (EV_P)	1561	* on the choice of "4": one iteration isn't enough,
1329	{	1562	* in case we get preempted during the calls to
1330	int i;	1563	* ev_time and get_clock. a second call is almost guaranteed
1331		1564	* to succeed in that case, though. and looping a few more times
1332	#if EV_USE_MONOTONIC	1565	* doesn't hurt either as we only do this on time-jumps or
1333	if (expect_true (have_monotonic))	1566	* in the unlikely event of having been preempted here.
1334	{	1567	*/
1335	if (time_update_monotonic (EV_A))	1568	for (i = 4; --i; )
1336	{	1569	{
1337	ev_tstamp odiff = rtmn_diff;
1338
1339	/* loop a few times, before making important decisions.
1340	* on the choice of "4": one iteration isn't enough,
1341	* in case we get preempted during the calls to
1342	* ev_time and get_clock. a second call is almost guaranteed
1343	* to succeed in that case, though. and looping a few more times
1344	* doesn't hurt either as we only do this on time-jumps or
1345	* in the unlikely event of having been preempted here.
1346	*/
1347	for (i = 4; --i; )
1348	{
1349	rtmn_diff = ev_rt_now - mn_now;	1570	rtmn_diff = ev_rt_now - mn_now;
1350		1571
1351	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1572	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1352	return; /* all is well */	1573	return; /* all is well */
1353		1574
1354	ev_rt_now = ev_time ();	1575	ev_rt_now = ev_time ();
1355	mn_now = get_clock ();	1576	mn_now = get_clock ();
1356	now_floor = mn_now;	1577	now_floor = mn_now;
1357	}	1578	}
1358		1579
1359	# if EV_PERIODIC_ENABLE	1580	# if EV_PERIODIC_ENABLE
1360	periodics_reschedule (EV_A);	1581	periodics_reschedule (EV_A);
1361	# endif	1582	# endif
1362	/* no timer adjustment, as the monotonic clock doesn't jump */	1583	/* no timer adjustment, as the monotonic clock doesn't jump */
1363	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1584	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364	}
1365	}	1585	}
1366	else	1586	else
1367	#endif	1587	#endif
1368	{	1588	{
1369	ev_rt_now = ev_time ();	1589	ev_rt_now = ev_time ();
1370		1590
1371	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1591	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372	{	1592	{
1373	#if EV_PERIODIC_ENABLE	1593	#if EV_PERIODIC_ENABLE
1374	periodics_reschedule (EV_A);	1594	periodics_reschedule (EV_A);
1375	#endif	1595	#endif
1376
1377	/* adjust timers. this is easy, as the offset is the same for all of them */	1596	/* adjust timers. this is easy, as the offset is the same for all of them */
1378	for (i = 0; i < timercnt; ++i)	1597	for (i = 0; i < timercnt; ++i)
1379	((WT)timers [i])->at += ev_rt_now - mn_now;	1598	((WT)timers [i])->at += ev_rt_now - mn_now;
1380	}	1599	}
1381		1600
…		…
1398	static int loop_done;	1617	static int loop_done;
1399		1618
1400	void	1619	void
1401	ev_loop (EV_P_ int flags)	1620	ev_loop (EV_P_ int flags)
1402	{	1621	{
1403	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1622	loop_done = EVUNLOOP_CANCEL;
1404	? EVUNLOOP_ONE
1405	: EVUNLOOP_CANCEL;
1406		1623
1407	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1624	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1408		1625
1409	do	1626	do
1410	{	1627	{
…		…
1444	/* update fd-related kernel structures */	1661	/* update fd-related kernel structures */
1445	fd_reify (EV_A);	1662	fd_reify (EV_A);
1446		1663
1447	/* calculate blocking time */	1664	/* calculate blocking time */
1448	{	1665	{
1449	ev_tstamp block;	1666	ev_tstamp waittime = 0.;
		1667	ev_tstamp sleeptime = 0.;
1450		1668
1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1669	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1452	block = 0.; /* do not block at all */
1453	else
1454	{	1670	{
1455	/* update time to cancel out callback processing overhead */	1671	/* update time to cancel out callback processing overhead */
1456	#if EV_USE_MONOTONIC
1457	if (expect_true (have_monotonic))
1458	time_update_monotonic (EV_A);	1672	time_update (EV_A_ 1e100);
1459	else
1460	#endif
1461	{
1462	ev_rt_now = ev_time ();
1463	mn_now = ev_rt_now;
1464	}
1465		1673
1466	block = MAX_BLOCKTIME;	1674	waittime = MAX_BLOCKTIME;
1467		1675
1468	if (timercnt)	1676	if (timercnt)
1469	{	1677	{
1470	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1678	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1471	if (block > to) block = to;	1679	if (waittime > to) waittime = to;
1472	}	1680	}
1473		1681
1474	#if EV_PERIODIC_ENABLE	1682	#if EV_PERIODIC_ENABLE
1475	if (periodiccnt)	1683	if (periodiccnt)
1476	{	1684	{
1477	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1685	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1478	if (block > to) block = to;	1686	if (waittime > to) waittime = to;
1479	}	1687	}
1480	#endif	1688	#endif
1481		1689
1482	if (expect_false (block < 0.)) block = 0.;	1690	if (expect_false (waittime < timeout_blocktime))
		1691	waittime = timeout_blocktime;
		1692
		1693	sleeptime = waittime - backend_fudge;
		1694
		1695	if (expect_true (sleeptime > io_blocktime))
		1696	sleeptime = io_blocktime;
		1697
		1698	if (sleeptime)
		1699	{
		1700	ev_sleep (sleeptime);
		1701	waittime -= sleeptime;
		1702	}
1483	}	1703	}
1484		1704
1485	++loop_count;	1705	++loop_count;
1486	backend_poll (EV_A_ block);	1706	backend_poll (EV_A_ waittime);
		1707
		1708	/* update ev_rt_now, do magic */
		1709	time_update (EV_A_ waittime + sleeptime);
1487	}	1710	}
1488
1489	/* update ev_rt_now, do magic */
1490	time_update (EV_A);
1491		1711
1492	/* queue pending timers and reschedule them */	1712	/* queue pending timers and reschedule them */
1493	timers_reify (EV_A); /* relative timers called last */	1713	timers_reify (EV_A); /* relative timers called last */
1494	#if EV_PERIODIC_ENABLE	1714	#if EV_PERIODIC_ENABLE
1495	periodics_reify (EV_A); /* absolute timers called first */	1715	periodics_reify (EV_A); /* absolute timers called first */
…		…
1503	/* queue check watchers, to be executed first */	1723	/* queue check watchers, to be executed first */
1504	if (expect_false (checkcnt))	1724	if (expect_false (checkcnt))
1505	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1725	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1506		1726
1507	call_pending (EV_A);	1727	call_pending (EV_A);
1508
1509	}	1728	}
1510	while (expect_true (activecnt && !loop_done));	1729	while (expect_true (
		1730	activecnt
		1731	&& !loop_done
		1732	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1733	));
1511		1734
1512	if (loop_done == EVUNLOOP_ONE)	1735	if (loop_done == EVUNLOOP_ONE)
1513	loop_done = EVUNLOOP_CANCEL;	1736	loop_done = EVUNLOOP_CANCEL;
1514	}	1737	}
1515		1738
…		…
1606		1829
1607	assert (("ev_io_start called with negative fd", fd >= 0));	1830	assert (("ev_io_start called with negative fd", fd >= 0));
1608		1831
1609	ev_start (EV_A_ (W)w, 1);	1832	ev_start (EV_A_ (W)w, 1);
1610	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1833	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1611	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1834	wlist_add (&anfds[fd].head, (WL)w);
1612		1835
1613	fd_change (EV_A_ fd);	1836	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1837	w->events &= ~EV_IOFDSET;
1614	}	1838	}
1615		1839
1616	void noinline	1840	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	1841	ev_io_stop (EV_P_ ev_io *w)
1618	{	1842	{
…		…
1620	if (expect_false (!ev_is_active (w)))	1844	if (expect_false (!ev_is_active (w)))
1621	return;	1845	return;
1622		1846
1623	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1847	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624		1848
1625	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1849	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	1850	ev_stop (EV_A_ (W)w);
1627		1851
1628	fd_change (EV_A_ w->fd);	1852	fd_change (EV_A_ w->fd, 1);
1629	}	1853	}
1630		1854
1631	void noinline	1855	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	1856	ev_timer_start (EV_P_ ev_timer *w)
1633	{	1857	{
…		…
1637	((WT)w)->at += mn_now;	1861	((WT)w)->at += mn_now;
1638		1862
1639	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1863	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640		1864
1641	ev_start (EV_A_ (W)w, ++timercnt);	1865	ev_start (EV_A_ (W)w, ++timercnt);
1642	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1866	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1643	timers [timercnt - 1] = w;	1867	timers [timercnt - 1] = (WT)w;
1644	upheap ((WT *)timers, timercnt - 1);	1868	upheap (timers, timercnt - 1);
1645		1869
1646	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1870	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1647	}	1871	}
1648		1872
1649	void noinline	1873	void noinline
…		…
1651	{	1875	{
1652	clear_pending (EV_A_ (W)w);	1876	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	1877	if (expect_false (!ev_is_active (w)))
1654	return;	1878	return;
1655		1879
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1880	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1657		1881
1658	{	1882	{
1659	int active = ((W)w)->active;	1883	int active = ((W)w)->active;
1660		1884
1661	if (expect_true (--active < --timercnt))	1885	if (expect_true (--active < --timercnt))
1662	{	1886	{
1663	timers [active] = timers [timercnt];	1887	timers [active] = timers [timercnt];
1664	adjustheap ((WT *)timers, timercnt, active);	1888	adjustheap (timers, timercnt, active);
1665	}	1889	}
1666	}	1890	}
1667		1891
1668	((WT)w)->at -= mn_now;	1892	((WT)w)->at -= mn_now;
1669		1893
…		…
1676	if (ev_is_active (w))	1900	if (ev_is_active (w))
1677	{	1901	{
1678	if (w->repeat)	1902	if (w->repeat)
1679	{	1903	{
1680	((WT)w)->at = mn_now + w->repeat;	1904	((WT)w)->at = mn_now + w->repeat;
1681	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1905	adjustheap (timers, timercnt, ((W)w)->active - 1);
1682	}	1906	}
1683	else	1907	else
1684	ev_timer_stop (EV_A_ w);	1908	ev_timer_stop (EV_A_ w);
1685	}	1909	}
1686	else if (w->repeat)	1910	else if (w->repeat)
…		…
1707	}	1931	}
1708	else	1932	else
1709	((WT)w)->at = w->offset;	1933	((WT)w)->at = w->offset;
1710		1934
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	1935	ev_start (EV_A_ (W)w, ++periodiccnt);
1712	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1936	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1713	periodics [periodiccnt - 1] = w;	1937	periodics [periodiccnt - 1] = (WT)w;
1714	upheap ((WT *)periodics, periodiccnt - 1);	1938	upheap (periodics, periodiccnt - 1);
1715		1939
1716	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1940	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1717	}	1941	}
1718		1942
1719	void noinline	1943	void noinline
…		…
1721	{	1945	{
1722	clear_pending (EV_A_ (W)w);	1946	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	1947	if (expect_false (!ev_is_active (w)))
1724	return;	1948	return;
1725		1949
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1950	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1727		1951
1728	{	1952	{
1729	int active = ((W)w)->active;	1953	int active = ((W)w)->active;
1730		1954
1731	if (expect_true (--active < --periodiccnt))	1955	if (expect_true (--active < --periodiccnt))
1732	{	1956	{
1733	periodics [active] = periodics [periodiccnt];	1957	periodics [active] = periodics [periodiccnt];
1734	adjustheap ((WT *)periodics, periodiccnt, active);	1958	adjustheap (periodics, periodiccnt, active);
1735	}	1959	}
1736	}	1960	}
1737		1961
1738	ev_stop (EV_A_ (W)w);	1962	ev_stop (EV_A_ (W)w);
1739	}	1963	}
…		…
1760	if (expect_false (ev_is_active (w)))	1984	if (expect_false (ev_is_active (w)))
1761	return;	1985	return;
1762		1986
1763	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1987	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1764		1988
		1989	evpipe_init (EV_A);
		1990
		1991	{
		1992	#ifndef _WIN32
		1993	sigset_t full, prev;
		1994	sigfillset (&full);
		1995	sigprocmask (SIG_SETMASK, &full, &prev);
		1996	#endif
		1997
		1998	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1999
		2000	#ifndef _WIN32
		2001	sigprocmask (SIG_SETMASK, &prev, 0);
		2002	#endif
		2003	}
		2004
1765	ev_start (EV_A_ (W)w, 1);	2005	ev_start (EV_A_ (W)w, 1);
1766	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1767	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2006	wlist_add (&signals [w->signum - 1].head, (WL)w);
1768		2007
1769	if (!((WL)w)->next)	2008	if (!((WL)w)->next)
1770	{	2009	{
1771	#if _WIN32	2010	#if _WIN32
1772	signal (w->signum, sighandler);	2011	signal (w->signum, ev_sighandler);
1773	#else	2012	#else
1774	struct sigaction sa;	2013	struct sigaction sa;
1775	sa.sa_handler = sighandler;	2014	sa.sa_handler = ev_sighandler;
1776	sigfillset (&sa.sa_mask);	2015	sigfillset (&sa.sa_mask);
1777	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2016	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1778	sigaction (w->signum, &sa, 0);	2017	sigaction (w->signum, &sa, 0);
1779	#endif	2018	#endif
1780	}	2019	}
…		…
1785	{	2024	{
1786	clear_pending (EV_A_ (W)w);	2025	clear_pending (EV_A_ (W)w);
1787	if (expect_false (!ev_is_active (w)))	2026	if (expect_false (!ev_is_active (w)))
1788	return;	2027	return;
1789		2028
1790	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2029	wlist_del (&signals [w->signum - 1].head, (WL)w);
1791	ev_stop (EV_A_ (W)w);	2030	ev_stop (EV_A_ (W)w);
1792		2031
1793	if (!signals [w->signum - 1].head)	2032	if (!signals [w->signum - 1].head)
1794	signal (w->signum, SIG_DFL);	2033	signal (w->signum, SIG_DFL);
1795	}	2034	}
…		…
1802	#endif	2041	#endif
1803	if (expect_false (ev_is_active (w)))	2042	if (expect_false (ev_is_active (w)))
1804	return;	2043	return;
1805		2044
1806	ev_start (EV_A_ (W)w, 1);	2045	ev_start (EV_A_ (W)w, 1);
1807	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2046	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1808	}	2047	}
1809		2048
1810	void	2049	void
1811	ev_child_stop (EV_P_ ev_child *w)	2050	ev_child_stop (EV_P_ ev_child *w)
1812	{	2051	{
1813	clear_pending (EV_A_ (W)w);	2052	clear_pending (EV_A_ (W)w);
1814	if (expect_false (!ev_is_active (w)))	2053	if (expect_false (!ev_is_active (w)))
1815	return;	2054	return;
1816		2055
1817	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2056	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1818	ev_stop (EV_A_ (W)w);	2057	ev_stop (EV_A_ (W)w);
1819	}	2058	}
1820		2059
1821	#if EV_STAT_ENABLE	2060	#if EV_STAT_ENABLE
1822		2061
…		…
2164		2403
2165	#if EV_EMBED_ENABLE	2404	#if EV_EMBED_ENABLE
2166	void noinline	2405	void noinline
2167	ev_embed_sweep (EV_P_ ev_embed *w)	2406	ev_embed_sweep (EV_P_ ev_embed *w)
2168	{	2407	{
2169	ev_loop (w->loop, EVLOOP_NONBLOCK);	2408	ev_loop (w->other, EVLOOP_NONBLOCK);
2170	}	2409	}
2171		2410
2172	static void	2411	static void
2173	embed_cb (EV_P_ ev_io *io, int revents)	2412	embed_io_cb (EV_P_ ev_io *io, int revents)
2174	{	2413	{
2175	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2414	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2176		2415
2177	if (ev_cb (w))	2416	if (ev_cb (w))
2178	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2417	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2179	else	2418	else
2180	ev_embed_sweep (loop, w);	2419	ev_loop (w->other, EVLOOP_NONBLOCK);
2181	}	2420	}
		2421
		2422	static void
		2423	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2424	{
		2425	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2426
		2427	{
		2428	struct ev_loop *loop = w->other;
		2429
		2430	while (fdchangecnt)
		2431	{
		2432	fd_reify (EV_A);
		2433	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2434	}
		2435	}
		2436	}
		2437
		2438	#if 0
		2439	static void
		2440	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2441	{
		2442	ev_idle_stop (EV_A_ idle);
		2443	}
		2444	#endif
2182		2445
2183	void	2446	void
2184	ev_embed_start (EV_P_ ev_embed *w)	2447	ev_embed_start (EV_P_ ev_embed *w)
2185	{	2448	{
2186	if (expect_false (ev_is_active (w)))	2449	if (expect_false (ev_is_active (w)))
2187	return;	2450	return;
2188		2451
2189	{	2452	{
2190	struct ev_loop *loop = w->loop;	2453	struct ev_loop *loop = w->other;
2191	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2454	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2192	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2455	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2193	}	2456	}
2194		2457
2195	ev_set_priority (&w->io, ev_priority (w));	2458	ev_set_priority (&w->io, ev_priority (w));
2196	ev_io_start (EV_A_ &w->io);	2459	ev_io_start (EV_A_ &w->io);
2197		2460
		2461	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2462	ev_set_priority (&w->prepare, EV_MINPRI);
		2463	ev_prepare_start (EV_A_ &w->prepare);
		2464
		2465	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2466
2198	ev_start (EV_A_ (W)w, 1);	2467	ev_start (EV_A_ (W)w, 1);
2199	}	2468	}
2200		2469
2201	void	2470	void
2202	ev_embed_stop (EV_P_ ev_embed *w)	2471	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2204	clear_pending (EV_A_ (W)w);	2473	clear_pending (EV_A_ (W)w);
2205	if (expect_false (!ev_is_active (w)))	2474	if (expect_false (!ev_is_active (w)))
2206	return;	2475	return;
2207		2476
2208	ev_io_stop (EV_A_ &w->io);	2477	ev_io_stop (EV_A_ &w->io);
		2478	ev_prepare_stop (EV_A_ &w->prepare);
2209		2479
2210	ev_stop (EV_A_ (W)w);	2480	ev_stop (EV_A_ (W)w);
2211	}	2481	}
2212	#endif	2482	#endif
2213		2483
…		…
2238		2508
2239	ev_stop (EV_A_ (W)w);	2509	ev_stop (EV_A_ (W)w);
2240	}	2510	}
2241	#endif	2511	#endif
2242		2512
		2513	#if EV_ASYNC_ENABLE
		2514	void
		2515	ev_async_start (EV_P_ ev_async *w)
		2516	{
		2517	if (expect_false (ev_is_active (w)))
		2518	return;
		2519
		2520	evpipe_init (EV_A);
		2521
		2522	ev_start (EV_A_ (W)w, ++asynccnt);
		2523	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2524	asyncs [asynccnt - 1] = w;
		2525	}
		2526
		2527	void
		2528	ev_async_stop (EV_P_ ev_async *w)
		2529	{
		2530	clear_pending (EV_A_ (W)w);
		2531	if (expect_false (!ev_is_active (w)))
		2532	return;
		2533
		2534	{
		2535	int active = ((W)w)->active;
		2536	asyncs [active - 1] = asyncs [--asynccnt];
		2537	((W)asyncs [active - 1])->active = active;
		2538	}
		2539
		2540	ev_stop (EV_A_ (W)w);
		2541	}
		2542
		2543	void
		2544	ev_async_send (EV_P_ ev_async *w)
		2545	{
		2546	w->sent = 1;
		2547	evpipe_write (EV_A_ &gotasync);
		2548	}
		2549	#endif
		2550
2243	/*****************************************************************************/	2551	/*****************************************************************************/
2244		2552
2245	struct ev_once	2553	struct ev_once
2246	{	2554	{
2247	ev_io io;	2555	ev_io io;
…		…
2302	ev_timer_set (&once->to, timeout, 0.);	2610	ev_timer_set (&once->to, timeout, 0.);
2303	ev_timer_start (EV_A_ &once->to);	2611	ev_timer_start (EV_A_ &once->to);
2304	}	2612	}
2305	}	2613	}
2306		2614
		2615	#if EV_MULTIPLICITY
		2616	#include "ev_wrap.h"
		2617	#endif
		2618
2307	#ifdef __cplusplus	2619	#ifdef __cplusplus
2308	}	2620	}
2309	#endif	2621	#endif
2310		2622

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Comparing libev/ev.c (file contents): Revision 1.176 by root, Tue Dec 11 04:31:55 2007 UTC vs. Revision 1.220 by root, Sun Apr 6 09:53:17 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.176 by root, Tue Dec 11 04:31:55 2007 UTC vs.
Revision 1.220 by root, Sun Apr 6 09:53:17 2008 UTC