[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 1.223 by root, Sun Apr 6 14:34:50 2008 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
9	* met:	9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
10	*	27	*
11	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
12	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
13	*	30	* in which case the provisions of the GPL are applicable instead of
14	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
15	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
16	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
17	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
18	*	35	* and other provisions required by the GPL. If you do not delete the
19	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
20	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
21	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	38	*/
31		39
32	#ifdef __cplusplus	40	#ifdef __cplusplus
33	extern "C" {	41	extern "C" {
34	#endif	42	#endif
35		43
		44	/* this big block deduces configuration from config.h */
36	#ifndef EV_STANDALONE	45	#ifndef EV_STANDALONE
37	# ifdef EV_CONFIG_H	46	# ifdef EV_CONFIG_H
38	# include EV_CONFIG_H	47	# include EV_CONFIG_H
39	# else	48	# else
40	# include "config.h"	49	# include "config.h"
51	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	61	# define EV_USE_MONOTONIC 0
53	# endif	62	# endif
54	# ifndef EV_USE_REALTIME	63	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	64	# define EV_USE_REALTIME 0
		65	# endif
		66	# endif
		67
		68	# ifndef EV_USE_NANOSLEEP
		69	# if HAVE_NANOSLEEP
		70	# define EV_USE_NANOSLEEP 1
		71	# else
		72	# define EV_USE_NANOSLEEP 0
56	# endif	73	# endif
57	# endif	74	# endif
58		75
59	# ifndef EV_USE_SELECT	76	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	77	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
102	# else	119	# else
103	# define EV_USE_INOTIFY 0	120	# define EV_USE_INOTIFY 0
104	# endif	121	# endif
105	# endif	122	# endif
106		123
		124	# ifndef EV_USE_EVENTFD
		125	# if HAVE_EVENTFD
		126	# define EV_USE_EVENTFD 1
		127	# else
		128	# define EV_USE_EVENTFD 0
		129	# endif
		130	# endif
		131
107	#endif	132	#endif
108		133
109	#include <math.h>	134	#include <math.h>
110	#include <stdlib.h>	135	#include <stdlib.h>
111	#include <fcntl.h>	136	#include <fcntl.h>
…		…
136	# ifndef EV_SELECT_IS_WINSOCKET	161	# ifndef EV_SELECT_IS_WINSOCKET
137	# define EV_SELECT_IS_WINSOCKET 1	162	# define EV_SELECT_IS_WINSOCKET 1
138	# endif	163	# endif
139	#endif	164	#endif
140		165
141	/**/	166	/* this block tries to deduce configuration from header-defined symbols and defaults */
142		167
143	#ifndef EV_USE_MONOTONIC	168	#ifndef EV_USE_MONOTONIC
144	# define EV_USE_MONOTONIC 0	169	# define EV_USE_MONOTONIC 0
145	#endif	170	#endif
146		171
147	#ifndef EV_USE_REALTIME	172	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	173	# define EV_USE_REALTIME 0
		174	#endif
		175
		176	#ifndef EV_USE_NANOSLEEP
		177	# define EV_USE_NANOSLEEP 0
149	#endif	178	#endif
150		179
151	#ifndef EV_USE_SELECT	180	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	181	# define EV_USE_SELECT 1
153	#endif	182	#endif
…		…
159	# define EV_USE_POLL 1	188	# define EV_USE_POLL 1
160	# endif	189	# endif
161	#endif	190	#endif
162		191
163	#ifndef EV_USE_EPOLL	192	#ifndef EV_USE_EPOLL
		193	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		194	# define EV_USE_EPOLL 1
		195	# else
164	# define EV_USE_EPOLL 0	196	# define EV_USE_EPOLL 0
		197	# endif
165	#endif	198	#endif
166		199
167	#ifndef EV_USE_KQUEUE	200	#ifndef EV_USE_KQUEUE
168	# define EV_USE_KQUEUE 0	201	# define EV_USE_KQUEUE 0
169	#endif	202	#endif
…		…
171	#ifndef EV_USE_PORT	204	#ifndef EV_USE_PORT
172	# define EV_USE_PORT 0	205	# define EV_USE_PORT 0
173	#endif	206	#endif
174		207
175	#ifndef EV_USE_INOTIFY	208	#ifndef EV_USE_INOTIFY
		209	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		210	# define EV_USE_INOTIFY 1
		211	# else
176	# define EV_USE_INOTIFY 0	212	# define EV_USE_INOTIFY 0
		213	# endif
177	#endif	214	#endif
178		215
179	#ifndef EV_PID_HASHSIZE	216	#ifndef EV_PID_HASHSIZE
180	# if EV_MINIMAL	217	# if EV_MINIMAL
181	# define EV_PID_HASHSIZE 1	218	# define EV_PID_HASHSIZE 1
…		…
190	# else	227	# else
191	# define EV_INOTIFY_HASHSIZE 16	228	# define EV_INOTIFY_HASHSIZE 16
192	# endif	229	# endif
193	#endif	230	#endif
194		231
195	/**/	232	#ifndef EV_USE_EVENTFD
		233	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		234	# define EV_USE_EVENTFD 1
		235	# else
		236	# define EV_USE_EVENTFD 0
		237	# endif
		238	#endif
		239
		240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		241
197	#ifndef CLOCK_MONOTONIC	242	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	243	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	244	# define EV_USE_MONOTONIC 0
200	#endif	245	#endif
…		…
202	#ifndef CLOCK_REALTIME	247	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	248	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	249	# define EV_USE_REALTIME 0
205	#endif	250	#endif
206		251
		252	#if !EV_STAT_ENABLE
		253	# undef EV_USE_INOTIFY
		254	# define EV_USE_INOTIFY 0
		255	#endif
		256
		257	#if !EV_USE_NANOSLEEP
		258	# ifndef _WIN32
		259	# include <sys/select.h>
		260	# endif
		261	#endif
		262
		263	#if EV_USE_INOTIFY
		264	# include <sys/inotify.h>
		265	#endif
		266
207	#if EV_SELECT_IS_WINSOCKET	267	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	268	# include <winsock.h>
209	#endif	269	#endif
210		270
211	#if !EV_STAT_ENABLE	271	#if EV_USE_EVENTFD
212	# define EV_USE_INOTIFY 0	272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		273	# include <stdint.h>
		274	# ifdef __cplusplus
		275	extern "C" {
213	#endif	276	# endif
214		277	int eventfd (unsigned int initval, int flags);
215	#if EV_USE_INOTIFY	278	# ifdef __cplusplus
216	# include <sys/inotify.h>	279	}
		280	# endif
217	#endif	281	#endif
218		282
219	/**/	283	/**/
220		284
221	/*	285	/*
222	* This is used to avoid floating point rounding problems.	286	* This is used to avoid floating point rounding problems.
223	* It is added to ev_rt_now when scheduling periodics	287	* It is added to ev_rt_now when scheduling periodics
224	* to ensure progress, time-wise, even when rounding	288	* to ensure progress, time-wise, even when rounding
225	* errors are against us.	289	* errors are against us.
226	* This value is good at least till the year 4000	290	* This value is good at least till the year 4000.
227	* and intervals up to 20 years.
228	* Better solutions welcome.	291	* Better solutions welcome.
229	*/	292	*/
230	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	293	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
231		294
232	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	295	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
233	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	296	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
234	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */	297	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
235		298
236	#if __GNUC__ >= 3	299	#if __GNUC__ >= 4
237	# define expect(expr,value) __builtin_expect ((expr),(value))	300	# define expect(expr,value) __builtin_expect ((expr),(value))
238	# define noinline __attribute__ ((noinline))	301	# define noinline __attribute__ ((noinline))
239	#else	302	#else
240	# define expect(expr,value) (expr)	303	# define expect(expr,value) (expr)
241	# define noinline	304	# define noinline
242	# if __STDC_VERSION__ < 199901L	305	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
243	# define inline	306	# define inline
244	# endif	307	# endif
245	#endif	308	#endif
246		309
247	#define expect_false(expr) expect ((expr) != 0, 0)	310	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
262		325
263	typedef ev_watcher *W;	326	typedef ev_watcher *W;
264	typedef ev_watcher_list *WL;	327	typedef ev_watcher_list *WL;
265	typedef ev_watcher_time *WT;	328	typedef ev_watcher_time *WT;
266		329
		330	#if EV_USE_MONOTONIC
		331	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		332	/* giving it a reasonably high chance of working on typical architetcures */
267	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	333	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		334	#endif
268		335
269	#ifdef _WIN32	336	#ifdef _WIN32
270	# include "ev_win32.c"	337	# include "ev_win32.c"
271	#endif	338	#endif
272		339
…		…
408	{	475	{
409	return ev_rt_now;	476	return ev_rt_now;
410	}	477	}
411	#endif	478	#endif
412		479
		480	void
		481	ev_sleep (ev_tstamp delay)
		482	{
		483	if (delay > 0.)
		484	{
		485	#if EV_USE_NANOSLEEP
		486	struct timespec ts;
		487
		488	ts.tv_sec = (time_t)delay;
		489	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		490
		491	nanosleep (&ts, 0);
		492	#elif defined(_WIN32)
		493	Sleep ((unsigned long)(delay * 1e3));
		494	#else
		495	struct timeval tv;
		496
		497	tv.tv_sec = (time_t)delay;
		498	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		499
		500	select (0, 0, 0, 0, &tv);
		501	#endif
		502	}
		503	}
		504
		505	/*****************************************************************************/
		506
413	int inline_size	507	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	508	array_nextsize (int elem, int cur, int cnt)
415	{	509	{
416	int ncur = cur + 1;	510	int ncur = cur + 1;
417		511
…		…
477	pendings [pri][w_->pending - 1].w = w_;	571	pendings [pri][w_->pending - 1].w = w_;
478	pendings [pri][w_->pending - 1].events = revents;	572	pendings [pri][w_->pending - 1].events = revents;
479	}	573	}
480	}	574	}
481		575
482	void inline_size	576	void inline_speed
483	queue_events (EV_P_ W *events, int eventcnt, int type)	577	queue_events (EV_P_ W *events, int eventcnt, int type)
484	{	578	{
485	int i;	579	int i;
486		580
487	for (i = 0; i < eventcnt; ++i)	581	for (i = 0; i < eventcnt; ++i)
…		…
534	{	628	{
535	int fd = fdchanges [i];	629	int fd = fdchanges [i];
536	ANFD *anfd = anfds + fd;	630	ANFD *anfd = anfds + fd;
537	ev_io *w;	631	ev_io *w;
538		632
539	int events = 0;	633	unsigned char events = 0;
540		634
541	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	635	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
542	events \|= w->events;	636	events \|= (unsigned char)w->events;
543		637
544	#if EV_SELECT_IS_WINSOCKET	638	#if EV_SELECT_IS_WINSOCKET
545	if (events)	639	if (events)
546	{	640	{
547	unsigned long argp;	641	unsigned long argp;
		642	#ifdef EV_FD_TO_WIN32_HANDLE
		643	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		644	#else
548	anfd->handle = _get_osfhandle (fd);	645	anfd->handle = _get_osfhandle (fd);
		646	#endif
549	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	647	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550	}	648	}
551	#endif	649	#endif
552		650
		651	{
		652	unsigned char o_events = anfd->events;
		653	unsigned char o_reify = anfd->reify;
		654
553	anfd->reify = 0;	655	anfd->reify = 0;
554
555	backend_modify (EV_A_ fd, anfd->events, events);
556	anfd->events = events;	656	anfd->events = events;
		657
		658	if (o_events != events \|\| o_reify & EV_IOFDSET)
		659	backend_modify (EV_A_ fd, o_events, events);
		660	}
557	}	661	}
558		662
559	fdchangecnt = 0;	663	fdchangecnt = 0;
560	}	664	}
561		665
562	void inline_size	666	void inline_size
563	fd_change (EV_P_ int fd)	667	fd_change (EV_P_ int fd, int flags)
564	{	668	{
565	if (expect_false (anfds [fd].reify))	669	unsigned char reify = anfds [fd].reify;
566	return;
567
568	anfds [fd].reify = 1;	670	anfds [fd].reify \|= flags;
569		671
		672	if (expect_true (!reify))
		673	{
570	++fdchangecnt;	674	++fdchangecnt;
571	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	675	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
572	fdchanges [fdchangecnt - 1] = fd;	676	fdchanges [fdchangecnt - 1] = fd;
		677	}
573	}	678	}
574		679
575	void inline_speed	680	void inline_speed
576	fd_kill (EV_P_ int fd)	681	fd_kill (EV_P_ int fd)
577	{	682	{
…		…
628		733
629	for (fd = 0; fd < anfdmax; ++fd)	734	for (fd = 0; fd < anfdmax; ++fd)
630	if (anfds [fd].events)	735	if (anfds [fd].events)
631	{	736	{
632	anfds [fd].events = 0;	737	anfds [fd].events = 0;
633	fd_change (EV_A_ fd);	738	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
634	}	739	}
635	}	740	}
636		741
637	/*****************************************************************************/	742	/*****************************************************************************/
638		743
639	void inline_speed	744	void inline_speed
640	upheap (WT *heap, int k)	745	upheap (WT *heap, int k)
641	{	746	{
642	WT w = heap [k];	747	WT w = heap [k];
643		748
644	while (k && heap [k >> 1]->at > w->at)	749	while (k)
645	{	750	{
		751	int p = (k - 1) >> 1;
		752
		753	if (heap [p]->at <= w->at)
		754	break;
		755
646	heap [k] = heap [k >> 1];	756	heap [k] = heap [p];
647	((W)heap [k])->active = k + 1;	757	((W)heap [k])->active = k + 1;
648	k >>= 1;	758	k = p;
649	}	759	}
650		760
651	heap [k] = w;	761	heap [k] = w;
652	((W)heap [k])->active = k + 1;	762	((W)heap [k])->active = k + 1;
653
654	}	763	}
655		764
656	void inline_speed	765	void inline_speed
657	downheap (WT *heap, int N, int k)	766	downheap (WT *heap, int N, int k)
658	{	767	{
659	WT w = heap [k];	768	WT w = heap [k];
660		769
661	while (k < (N >> 1))	770	for (;;)
662	{	771	{
663	int j = k << 1;	772	int c = (k << 1) + 1;
664		773
665	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	774	if (c >= N)
666	++j;
667
668	if (w->at <= heap [j]->at)
669	break;	775	break;
670		776
		777	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		778	? 1 : 0;
		779
		780	if (w->at <= heap [c]->at)
		781	break;
		782
671	heap [k] = heap [j];	783	heap [k] = heap [c];
672	((W)heap [k])->active = k + 1;	784	((W)heap [k])->active = k + 1;
		785
673	k = j;	786	k = c;
674	}	787	}
675		788
676	heap [k] = w;	789	heap [k] = w;
677	((W)heap [k])->active = k + 1;	790	((W)heap [k])->active = k + 1;
678	}	791	}
…		…
687	/*****************************************************************************/	800	/*****************************************************************************/
688		801
689	typedef struct	802	typedef struct
690	{	803	{
691	WL head;	804	WL head;
692	sig_atomic_t volatile gotsig;	805	EV_ATOMIC_T gotsig;
693	} ANSIG;	806	} ANSIG;
694		807
695	static ANSIG *signals;	808	static ANSIG *signals;
696	static int signalmax;	809	static int signalmax;
697		810
698	static int sigpipe [2];	811	static EV_ATOMIC_T gotsig;
699	static sig_atomic_t volatile gotsig;
700	static ev_io sigev;
701		812
702	void inline_size	813	void inline_size
703	signals_init (ANSIG *base, int count)	814	signals_init (ANSIG *base, int count)
704	{	815	{
705	while (count--)	816	while (count--)
…		…
709		820
710	++base;	821	++base;
711	}	822	}
712	}	823	}
713		824
714	static void	825	/*****************************************************************************/
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		826
765	void inline_speed	827	void inline_speed
766	fd_intern (int fd)	828	fd_intern (int fd)
767	{	829	{
768	#ifdef _WIN32	830	#ifdef _WIN32
…		…
773	fcntl (fd, F_SETFL, O_NONBLOCK);	835	fcntl (fd, F_SETFL, O_NONBLOCK);
774	#endif	836	#endif
775	}	837	}
776		838
777	static void noinline	839	static void noinline
778	siginit (EV_P)	840	evpipe_init (EV_P)
779	{	841	{
		842	if (!ev_is_active (&pipeev))
		843	{
		844	#if EV_USE_EVENTFD
		845	if ((evfd = eventfd (0, 0)) >= 0)
		846	{
		847	evpipe [0] = -1;
		848	fd_intern (evfd);
		849	ev_io_set (&pipeev, evfd, EV_READ);
		850	}
		851	else
		852	#endif
		853	{
		854	while (pipe (evpipe))
		855	syserr ("(libev) error creating signal/async pipe");
		856
780	fd_intern (sigpipe [0]);	857	fd_intern (evpipe [0]);
781	fd_intern (sigpipe [1]);	858	fd_intern (evpipe [1]);
		859	ev_io_set (&pipeev, evpipe [0], EV_READ);
		860	}
782		861
783	ev_io_set (&sigev, sigpipe [0], EV_READ);
784	ev_io_start (EV_A_ &sigev);	862	ev_io_start (EV_A_ &pipeev);
785	ev_unref (EV_A); /* child watcher should not keep loop alive */	863	ev_unref (EV_A); /* watcher should not keep loop alive */
		864	}
		865	}
		866
		867	void inline_size
		868	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		869	{
		870	if (!*flag)
		871	{
		872	int old_errno = errno; /* save errno because write might clobber it */
		873
		874	*flag = 1;
		875
		876	#if EV_USE_EVENTFD
		877	if (evfd >= 0)
		878	{
		879	uint64_t counter = 1;
		880	write (evfd, &counter, sizeof (uint64_t));
		881	}
		882	else
		883	#endif
		884	write (evpipe [1], &old_errno, 1);
		885
		886	errno = old_errno;
		887	}
		888	}
		889
		890	static void
		891	pipecb (EV_P_ ev_io *iow, int revents)
		892	{
		893	#if EV_USE_EVENTFD
		894	if (evfd >= 0)
		895	{
		896	uint64_t counter = 1;
		897	read (evfd, &counter, sizeof (uint64_t));
		898	}
		899	else
		900	#endif
		901	{
		902	char dummy;
		903	read (evpipe [0], &dummy, 1);
		904	}
		905
		906	if (gotsig && ev_is_default_loop (EV_A))
		907	{
		908	int signum;
		909	gotsig = 0;
		910
		911	for (signum = signalmax; signum--; )
		912	if (signals [signum].gotsig)
		913	ev_feed_signal_event (EV_A_ signum + 1);
		914	}
		915
		916	#if EV_ASYNC_ENABLE
		917	if (gotasync)
		918	{
		919	int i;
		920	gotasync = 0;
		921
		922	for (i = asynccnt; i--; )
		923	if (asyncs [i]->sent)
		924	{
		925	asyncs [i]->sent = 0;
		926	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		927	}
		928	}
		929	#endif
786	}	930	}
787		931
788	/*****************************************************************************/	932	/*****************************************************************************/
789		933
		934	static void
		935	ev_sighandler (int signum)
		936	{
		937	#if EV_MULTIPLICITY
		938	struct ev_loop *loop = &default_loop_struct;
		939	#endif
		940
		941	#if _WIN32
		942	signal (signum, ev_sighandler);
		943	#endif
		944
		945	signals [signum - 1].gotsig = 1;
		946	evpipe_write (EV_A_ &gotsig);
		947	}
		948
		949	void noinline
		950	ev_feed_signal_event (EV_P_ int signum)
		951	{
		952	WL w;
		953
		954	#if EV_MULTIPLICITY
		955	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		956	#endif
		957
		958	--signum;
		959
		960	if (signum < 0 \|\| signum >= signalmax)
		961	return;
		962
		963	signals [signum].gotsig = 0;
		964
		965	for (w = signals [signum].head; w; w = w->next)
		966	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		967	}
		968
		969	/*****************************************************************************/
		970
790	static ev_child *childs [EV_PID_HASHSIZE];	971	static WL childs [EV_PID_HASHSIZE];
791		972
792	#ifndef _WIN32	973	#ifndef _WIN32
793		974
794	static ev_signal childev;	975	static ev_signal childev;
795		976
		977	#ifndef WIFCONTINUED
		978	# define WIFCONTINUED(status) 0
		979	#endif
		980
796	void inline_speed	981	void inline_speed
797	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	982	child_reap (EV_P_ int chain, int pid, int status)
798	{	983	{
799	ev_child *w;	984	ev_child *w;
		985	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
800		986
801	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	987	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		988	{
802	if (w->pid == pid \|\| !w->pid)	989	if ((w->pid == pid \|\| !w->pid)
		990	&& (!traced \|\| (w->flags & 1)))
803	{	991	{
804	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	992	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;	993	w->rpid = pid;
806	w->rstatus = status;	994	w->rstatus = status;
807	ev_feed_event (EV_A_ (W)w, EV_CHILD);	995	ev_feed_event (EV_A_ (W)w, EV_CHILD);
808	}	996	}
		997	}
809	}	998	}
810		999
811	#ifndef WCONTINUED	1000	#ifndef WCONTINUED
812	# define WCONTINUED 0	1001	# define WCONTINUED 0
813	#endif	1002	#endif
…		…
822	if (!WCONTINUED	1011	if (!WCONTINUED
823	\|\| errno != EINVAL	1012	\|\| errno != EINVAL
824	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1013	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
825	return;	1014	return;
826		1015
827	/* make sure we are called again until all childs have been reaped */	1016	/* 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 */	1017	/* 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);	1018	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
830		1019
831	child_reap (EV_A_ sw, pid, pid, status);	1020	child_reap (EV_A_ pid, pid, status);
832	if (EV_PID_HASHSIZE > 1)	1021	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 */	1022	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
834	}	1023	}
835		1024
836	#endif	1025	#endif
837		1026
838	/*****************************************************************************/	1027	/*****************************************************************************/
…		…
910	}	1099	}
911		1100
912	unsigned int	1101	unsigned int
913	ev_embeddable_backends (void)	1102	ev_embeddable_backends (void)
914	{	1103	{
915	return EVBACKEND_EPOLL	1104	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
916	\| EVBACKEND_KQUEUE	1105
917	\| EVBACKEND_PORT;	1106	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1107	/* please fix it and tell me how to detect the fix */
		1108	flags &= ~EVBACKEND_EPOLL;
		1109
		1110	return flags;
918	}	1111	}
919		1112
920	unsigned int	1113	unsigned int
921	ev_backend (EV_P)	1114	ev_backend (EV_P)
922	{	1115	{
…		…
925		1118
926	unsigned int	1119	unsigned int
927	ev_loop_count (EV_P)	1120	ev_loop_count (EV_P)
928	{	1121	{
929	return loop_count;	1122	return loop_count;
		1123	}
		1124
		1125	void
		1126	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1127	{
		1128	io_blocktime = interval;
		1129	}
		1130
		1131	void
		1132	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1133	{
		1134	timeout_blocktime = interval;
930	}	1135	}
931		1136
932	static void noinline	1137	static void noinline
933	loop_init (EV_P_ unsigned int flags)	1138	loop_init (EV_P_ unsigned int flags)
934	{	1139	{
…		…
940	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1145	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
941	have_monotonic = 1;	1146	have_monotonic = 1;
942	}	1147	}
943	#endif	1148	#endif
944		1149
945	ev_rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
946	mn_now = get_clock ();	1151	mn_now = get_clock ();
947	now_floor = mn_now;	1152	now_floor = mn_now;
948	rtmn_diff = ev_rt_now - mn_now;	1153	rtmn_diff = ev_rt_now - mn_now;
		1154
		1155	io_blocktime = 0.;
		1156	timeout_blocktime = 0.;
		1157	backend = 0;
		1158	backend_fd = -1;
		1159	gotasync = 0;
		1160	#if EV_USE_INOTIFY
		1161	fs_fd = -2;
		1162	#endif
949		1163
950	/* pid check not overridable via env */	1164	/* pid check not overridable via env */
951	#ifndef _WIN32	1165	#ifndef _WIN32
952	if (flags & EVFLAG_FORKCHECK)	1166	if (flags & EVFLAG_FORKCHECK)
953	curpid = getpid ();	1167	curpid = getpid ();
…		…
959	flags = atoi (getenv ("LIBEV_FLAGS"));	1173	flags = atoi (getenv ("LIBEV_FLAGS"));
960		1174
961	if (!(flags & 0x0000ffffUL))	1175	if (!(flags & 0x0000ffffUL))
962	flags \|= ev_recommended_backends ();	1176	flags \|= ev_recommended_backends ();
963		1177
964	backend = 0;
965	backend_fd = -1;
966	#if EV_USE_INOTIFY
967	fs_fd = -2;
968	#endif
969
970	#if EV_USE_PORT	1178	#if EV_USE_PORT
971	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1179	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
972	#endif	1180	#endif
973	#if EV_USE_KQUEUE	1181	#if EV_USE_KQUEUE
974	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1182	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
981	#endif	1189	#endif
982	#if EV_USE_SELECT	1190	#if EV_USE_SELECT
983	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1191	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
984	#endif	1192	#endif
985		1193
986	ev_init (&sigev, sigcb);	1194	ev_init (&pipeev, pipecb);
987	ev_set_priority (&sigev, EV_MAXPRI);	1195	ev_set_priority (&pipeev, EV_MAXPRI);
988	}	1196	}
989	}	1197	}
990		1198
991	static void noinline	1199	static void noinline
992	loop_destroy (EV_P)	1200	loop_destroy (EV_P)
993	{	1201	{
994	int i;	1202	int i;
		1203
		1204	if (ev_is_active (&pipeev))
		1205	{
		1206	ev_ref (EV_A); /* signal watcher */
		1207	ev_io_stop (EV_A_ &pipeev);
		1208
		1209	#if EV_USE_EVENTFD
		1210	if (evfd >= 0)
		1211	close (evfd);
		1212	#endif
		1213
		1214	if (evpipe [0] >= 0)
		1215	{
		1216	close (evpipe [0]);
		1217	close (evpipe [1]);
		1218	}
		1219	}
995		1220
996	#if EV_USE_INOTIFY	1221	#if EV_USE_INOTIFY
997	if (fs_fd >= 0)	1222	if (fs_fd >= 0)
998	close (fs_fd);	1223	close (fs_fd);
999	#endif	1224	#endif
…		…
1022	array_free (pending, [i]);	1247	array_free (pending, [i]);
1023	#if EV_IDLE_ENABLE	1248	#if EV_IDLE_ENABLE
1024	array_free (idle, [i]);	1249	array_free (idle, [i]);
1025	#endif	1250	#endif
1026	}	1251	}
		1252
		1253	ev_free (anfds); anfdmax = 0;
1027		1254
1028	/* have to use the microsoft-never-gets-it-right macro */	1255	/* have to use the microsoft-never-gets-it-right macro */
1029	array_free (fdchange, EMPTY);	1256	array_free (fdchange, EMPTY);
1030	array_free (timer, EMPTY);	1257	array_free (timer, EMPTY);
1031	#if EV_PERIODIC_ENABLE	1258	#if EV_PERIODIC_ENABLE
1032	array_free (periodic, EMPTY);	1259	array_free (periodic, EMPTY);
1033	#endif	1260	#endif
		1261	#if EV_FORK_ENABLE
		1262	array_free (fork, EMPTY);
		1263	#endif
1034	array_free (prepare, EMPTY);	1264	array_free (prepare, EMPTY);
1035	array_free (check, EMPTY);	1265	array_free (check, EMPTY);
		1266	#if EV_ASYNC_ENABLE
		1267	array_free (async, EMPTY);
		1268	#endif
1036		1269
1037	backend = 0;	1270	backend = 0;
1038	}	1271	}
1039		1272
1040	void inline_size infy_fork (EV_P);	1273	void inline_size infy_fork (EV_P);
…		…
1053	#endif	1286	#endif
1054	#if EV_USE_INOTIFY	1287	#if EV_USE_INOTIFY
1055	infy_fork (EV_A);	1288	infy_fork (EV_A);
1056	#endif	1289	#endif
1057		1290
1058	if (ev_is_active (&sigev))	1291	if (ev_is_active (&pipeev))
1059	{	1292	{
1060	/* default loop */	1293	/* this "locks" the handlers against writing to the pipe */
		1294	/* while we modify the fd vars */
		1295	gotsig = 1;
		1296	#if EV_ASYNC_ENABLE
		1297	gotasync = 1;
		1298	#endif
1061		1299
1062	ev_ref (EV_A);	1300	ev_ref (EV_A);
1063	ev_io_stop (EV_A_ &sigev);	1301	ev_io_stop (EV_A_ &pipeev);
		1302
		1303	#if EV_USE_EVENTFD
		1304	if (evfd >= 0)
		1305	close (evfd);
		1306	#endif
		1307
		1308	if (evpipe [0] >= 0)
		1309	{
1064	close (sigpipe [0]);	1310	close (evpipe [0]);
1065	close (sigpipe [1]);	1311	close (evpipe [1]);
		1312	}
1066		1313
1067	while (pipe (sigpipe))
1068	syserr ("(libev) error creating pipe");
1069
1070	siginit (EV_A);	1314	evpipe_init (EV_A);
		1315	/* now iterate over everything, in case we missed something */
		1316	pipecb (EV_A_ &pipeev, EV_READ);
1071	}	1317	}
1072		1318
1073	postfork = 0;	1319	postfork = 0;
1074	}	1320	}
1075		1321
…		…
1097	}	1343	}
1098		1344
1099	void	1345	void
1100	ev_loop_fork (EV_P)	1346	ev_loop_fork (EV_P)
1101	{	1347	{
1102	postfork = 1;	1348	postfork = 1; /* must be in line with ev_default_fork */
1103	}	1349	}
1104		1350
1105	#endif	1351	#endif
1106		1352
1107	#if EV_MULTIPLICITY	1353	#if EV_MULTIPLICITY
…		…
1110	#else	1356	#else
1111	int	1357	int
1112	ev_default_loop (unsigned int flags)	1358	ev_default_loop (unsigned int flags)
1113	#endif	1359	#endif
1114	{	1360	{
1115	if (sigpipe [0] == sigpipe [1])
1116	if (pipe (sigpipe))
1117	return 0;
1118
1119	if (!ev_default_loop_ptr)	1361	if (!ev_default_loop_ptr)
1120	{	1362	{
1121	#if EV_MULTIPLICITY	1363	#if EV_MULTIPLICITY
1122	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1364	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1123	#else	1365	#else
…		…
1126		1368
1127	loop_init (EV_A_ flags);	1369	loop_init (EV_A_ flags);
1128		1370
1129	if (ev_backend (EV_A))	1371	if (ev_backend (EV_A))
1130	{	1372	{
1131	siginit (EV_A);
1132
1133	#ifndef _WIN32	1373	#ifndef _WIN32
1134	ev_signal_init (&childev, childcb, SIGCHLD);	1374	ev_signal_init (&childev, childcb, SIGCHLD);
1135	ev_set_priority (&childev, EV_MAXPRI);	1375	ev_set_priority (&childev, EV_MAXPRI);
1136	ev_signal_start (EV_A_ &childev);	1376	ev_signal_start (EV_A_ &childev);
1137	ev_unref (EV_A); /* child watcher should not keep loop alive */	1377	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1154	#ifndef _WIN32	1394	#ifndef _WIN32
1155	ev_ref (EV_A); /* child watcher */	1395	ev_ref (EV_A); /* child watcher */
1156	ev_signal_stop (EV_A_ &childev);	1396	ev_signal_stop (EV_A_ &childev);
1157	#endif	1397	#endif
1158		1398
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);	1399	loop_destroy (EV_A);
1166	}	1400	}
1167		1401
1168	void	1402	void
1169	ev_default_fork (void)	1403	ev_default_fork (void)
…		…
1171	#if EV_MULTIPLICITY	1405	#if EV_MULTIPLICITY
1172	struct ev_loop *loop = ev_default_loop_ptr;	1406	struct ev_loop *loop = ev_default_loop_ptr;
1173	#endif	1407	#endif
1174		1408
1175	if (backend)	1409	if (backend)
1176	postfork = 1;	1410	postfork = 1; /* must be in line with ev_loop_fork */
1177	}	1411	}
1178		1412
1179	/*****************************************************************************/	1413	/*****************************************************************************/
1180		1414
1181	void	1415	void
…		…
1207	void inline_size	1441	void inline_size
1208	timers_reify (EV_P)	1442	timers_reify (EV_P)
1209	{	1443	{
1210	while (timercnt && ((WT)timers [0])->at <= mn_now)	1444	while (timercnt && ((WT)timers [0])->at <= mn_now)
1211	{	1445	{
1212	ev_timer *w = timers [0];	1446	ev_timer w = (ev_timer )timers [0];
1213		1447
1214	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1448	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1215		1449
1216	/* first reschedule or stop timer */	1450	/* first reschedule or stop timer */
1217	if (w->repeat)	1451	if (w->repeat)
…		…
1220		1454
1221	((WT)w)->at += w->repeat;	1455	((WT)w)->at += w->repeat;
1222	if (((WT)w)->at < mn_now)	1456	if (((WT)w)->at < mn_now)
1223	((WT)w)->at = mn_now;	1457	((WT)w)->at = mn_now;
1224		1458
1225	downheap ((WT *)timers, timercnt, 0);	1459	downheap (timers, timercnt, 0);
1226	}	1460	}
1227	else	1461	else
1228	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1462	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1229		1463
1230	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1464	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1235	void inline_size	1469	void inline_size
1236	periodics_reify (EV_P)	1470	periodics_reify (EV_P)
1237	{	1471	{
1238	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1472	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1239	{	1473	{
1240	ev_periodic *w = periodics [0];	1474	ev_periodic w = (ev_periodic )periodics [0];
1241		1475
1242	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1476	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1243		1477
1244	/* first reschedule or stop timer */	1478	/* first reschedule or stop timer */
1245	if (w->reschedule_cb)	1479	if (w->reschedule_cb)
1246	{	1480	{
1247	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1481	((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));	1482	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1249	downheap ((WT *)periodics, periodiccnt, 0);	1483	downheap (periodics, periodiccnt, 0);
1250	}	1484	}
1251	else if (w->interval)	1485	else if (w->interval)
1252	{	1486	{
1253	((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval;	1487	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1488	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));	1489	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);	1490	downheap (periodics, periodiccnt, 0);
1256	}	1491	}
1257	else	1492	else
1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1493	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259		1494
1260	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1495	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1267	int i;	1502	int i;
1268		1503
1269	/* adjust periodics after time jump */	1504	/* adjust periodics after time jump */
1270	for (i = 0; i < periodiccnt; ++i)	1505	for (i = 0; i < periodiccnt; ++i)
1271	{	1506	{
1272	ev_periodic *w = periodics [i];	1507	ev_periodic w = (ev_periodic )periodics [i];
1273		1508
1274	if (w->reschedule_cb)	1509	if (w->reschedule_cb)
1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1510	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276	else if (w->interval)	1511	else if (w->interval)
1277	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1512	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278	}	1513	}
1279		1514
1280	/* now rebuild the heap */	1515	/* now rebuild the heap */
1281	for (i = periodiccnt >> 1; i--; )	1516	for (i = periodiccnt >> 1; i--; )
1282	downheap ((WT *)periodics, periodiccnt, i);	1517	downheap (periodics, periodiccnt, i);
1283	}	1518	}
1284	#endif	1519	#endif
1285		1520
1286	#if EV_IDLE_ENABLE	1521	#if EV_IDLE_ENABLE
1287	void inline_size	1522	void inline_size
…		…
1304	}	1539	}
1305	}	1540	}
1306	}	1541	}
1307	#endif	1542	#endif
1308		1543
1309	int inline_size	1544	void inline_speed
1310	time_update_monotonic (EV_P)	1545	time_update (EV_P_ ev_tstamp max_block)
1311	{	1546	{
		1547	int i;
		1548
		1549	#if EV_USE_MONOTONIC
		1550	if (expect_true (have_monotonic))
		1551	{
		1552	ev_tstamp odiff = rtmn_diff;
		1553
1312	mn_now = get_clock ();	1554	mn_now = get_clock ();
1313		1555
		1556	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1557	/* interpolate in the meantime */
1314	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1558	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315	{	1559	{
1316	ev_rt_now = rtmn_diff + mn_now;	1560	ev_rt_now = rtmn_diff + mn_now;
1317	return 0;	1561	return;
1318	}	1562	}
1319	else	1563
1320	{
1321	now_floor = mn_now;	1564	now_floor = mn_now;
1322	ev_rt_now = ev_time ();	1565	ev_rt_now = ev_time ();
1323	return 1;
1324	}
1325	}
1326		1566
1327	void inline_size	1567	/* loop a few times, before making important decisions.
1328	time_update (EV_P)	1568	* on the choice of "4": one iteration isn't enough,
1329	{	1569	* in case we get preempted during the calls to
1330	int i;	1570	* ev_time and get_clock. a second call is almost guaranteed
1331		1571	* to succeed in that case, though. and looping a few more times
1332	#if EV_USE_MONOTONIC	1572	* doesn't hurt either as we only do this on time-jumps or
1333	if (expect_true (have_monotonic))	1573	* in the unlikely event of having been preempted here.
1334	{	1574	*/
1335	if (time_update_monotonic (EV_A))	1575	for (i = 4; --i; )
1336	{	1576	{
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;	1577	rtmn_diff = ev_rt_now - mn_now;
1350		1578
1351	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1579	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1352	return; /* all is well */	1580	return; /* all is well */
1353		1581
1354	ev_rt_now = ev_time ();	1582	ev_rt_now = ev_time ();
1355	mn_now = get_clock ();	1583	mn_now = get_clock ();
1356	now_floor = mn_now;	1584	now_floor = mn_now;
1357	}	1585	}
1358		1586
1359	# if EV_PERIODIC_ENABLE	1587	# if EV_PERIODIC_ENABLE
1360	periodics_reschedule (EV_A);	1588	periodics_reschedule (EV_A);
1361	# endif	1589	# endif
1362	/* no timer adjustment, as the monotonic clock doesn't jump */	1590	/* no timer adjustment, as the monotonic clock doesn't jump */
1363	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1591	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364	}
1365	}	1592	}
1366	else	1593	else
1367	#endif	1594	#endif
1368	{	1595	{
1369	ev_rt_now = ev_time ();	1596	ev_rt_now = ev_time ();
1370		1597
1371	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1598	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372	{	1599	{
1373	#if EV_PERIODIC_ENABLE	1600	#if EV_PERIODIC_ENABLE
1374	periodics_reschedule (EV_A);	1601	periodics_reschedule (EV_A);
1375	#endif	1602	#endif
1376
1377	/* adjust timers. this is easy, as the offset is the same for all of them */	1603	/* adjust timers. this is easy, as the offset is the same for all of them */
1378	for (i = 0; i < timercnt; ++i)	1604	for (i = 0; i < timercnt; ++i)
1379	((WT)timers [i])->at += ev_rt_now - mn_now;	1605	((WT)timers [i])->at += ev_rt_now - mn_now;
1380	}	1606	}
1381		1607
…		…
1398	static int loop_done;	1624	static int loop_done;
1399		1625
1400	void	1626	void
1401	ev_loop (EV_P_ int flags)	1627	ev_loop (EV_P_ int flags)
1402	{	1628	{
1403	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1629	loop_done = EVUNLOOP_CANCEL;
1404	? EVUNLOOP_ONE
1405	: EVUNLOOP_CANCEL;
1406		1630
1407	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1631	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1408		1632
1409	do	1633	do
1410	{	1634	{
…		…
1444	/* update fd-related kernel structures */	1668	/* update fd-related kernel structures */
1445	fd_reify (EV_A);	1669	fd_reify (EV_A);
1446		1670
1447	/* calculate blocking time */	1671	/* calculate blocking time */
1448	{	1672	{
1449	ev_tstamp block;	1673	ev_tstamp waittime = 0.;
		1674	ev_tstamp sleeptime = 0.;
1450		1675
1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1676	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1452	block = 0.; /* do not block at all */
1453	else
1454	{	1677	{
1455	/* update time to cancel out callback processing overhead */	1678	/* 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);	1679	time_update (EV_A_ 1e100);
1459	else
1460	#endif
1461	{
1462	ev_rt_now = ev_time ();
1463	mn_now = ev_rt_now;
1464	}
1465		1680
1466	block = MAX_BLOCKTIME;	1681	waittime = MAX_BLOCKTIME;
1467		1682
1468	if (timercnt)	1683	if (timercnt)
1469	{	1684	{
1470	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1685	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1471	if (block > to) block = to;	1686	if (waittime > to) waittime = to;
1472	}	1687	}
1473		1688
1474	#if EV_PERIODIC_ENABLE	1689	#if EV_PERIODIC_ENABLE
1475	if (periodiccnt)	1690	if (periodiccnt)
1476	{	1691	{
1477	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1692	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1478	if (block > to) block = to;	1693	if (waittime > to) waittime = to;
1479	}	1694	}
1480	#endif	1695	#endif
1481		1696
1482	if (expect_false (block < 0.)) block = 0.;	1697	if (expect_false (waittime < timeout_blocktime))
		1698	waittime = timeout_blocktime;
		1699
		1700	sleeptime = waittime - backend_fudge;
		1701
		1702	if (expect_true (sleeptime > io_blocktime))
		1703	sleeptime = io_blocktime;
		1704
		1705	if (sleeptime)
		1706	{
		1707	ev_sleep (sleeptime);
		1708	waittime -= sleeptime;
		1709	}
1483	}	1710	}
1484		1711
1485	++loop_count;	1712	++loop_count;
1486	backend_poll (EV_A_ block);	1713	backend_poll (EV_A_ waittime);
		1714
		1715	/* update ev_rt_now, do magic */
		1716	time_update (EV_A_ waittime + sleeptime);
1487	}	1717	}
1488
1489	/* update ev_rt_now, do magic */
1490	time_update (EV_A);
1491		1718
1492	/* queue pending timers and reschedule them */	1719	/* queue pending timers and reschedule them */
1493	timers_reify (EV_A); /* relative timers called last */	1720	timers_reify (EV_A); /* relative timers called last */
1494	#if EV_PERIODIC_ENABLE	1721	#if EV_PERIODIC_ENABLE
1495	periodics_reify (EV_A); /* absolute timers called first */	1722	periodics_reify (EV_A); /* absolute timers called first */
…		…
1503	/* queue check watchers, to be executed first */	1730	/* queue check watchers, to be executed first */
1504	if (expect_false (checkcnt))	1731	if (expect_false (checkcnt))
1505	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1732	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1506		1733
1507	call_pending (EV_A);	1734	call_pending (EV_A);
1508
1509	}	1735	}
1510	while (expect_true (activecnt && !loop_done));	1736	while (expect_true (
		1737	activecnt
		1738	&& !loop_done
		1739	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1740	));
1511		1741
1512	if (loop_done == EVUNLOOP_ONE)	1742	if (loop_done == EVUNLOOP_ONE)
1513	loop_done = EVUNLOOP_CANCEL;	1743	loop_done = EVUNLOOP_CANCEL;
1514	}	1744	}
1515		1745
…		…
1606		1836
1607	assert (("ev_io_start called with negative fd", fd >= 0));	1837	assert (("ev_io_start called with negative fd", fd >= 0));
1608		1838
1609	ev_start (EV_A_ (W)w, 1);	1839	ev_start (EV_A_ (W)w, 1);
1610	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1840	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1611	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1841	wlist_add (&anfds[fd].head, (WL)w);
1612		1842
1613	fd_change (EV_A_ fd);	1843	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1844	w->events &= ~EV_IOFDSET;
1614	}	1845	}
1615		1846
1616	void noinline	1847	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	1848	ev_io_stop (EV_P_ ev_io *w)
1618	{	1849	{
…		…
1620	if (expect_false (!ev_is_active (w)))	1851	if (expect_false (!ev_is_active (w)))
1621	return;	1852	return;
1622		1853
1623	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1854	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624		1855
1625	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1856	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	1857	ev_stop (EV_A_ (W)w);
1627		1858
1628	fd_change (EV_A_ w->fd);	1859	fd_change (EV_A_ w->fd, 1);
1629	}	1860	}
1630		1861
1631	void noinline	1862	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	1863	ev_timer_start (EV_P_ ev_timer *w)
1633	{	1864	{
…		…
1637	((WT)w)->at += mn_now;	1868	((WT)w)->at += mn_now;
1638		1869
1639	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1870	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640		1871
1641	ev_start (EV_A_ (W)w, ++timercnt);	1872	ev_start (EV_A_ (W)w, ++timercnt);
1642	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1873	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1643	timers [timercnt - 1] = w;	1874	timers [timercnt - 1] = (WT)w;
1644	upheap ((WT *)timers, timercnt - 1);	1875	upheap (timers, timercnt - 1);
1645		1876
1646	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1877	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1647	}	1878	}
1648		1879
1649	void noinline	1880	void noinline
…		…
1651	{	1882	{
1652	clear_pending (EV_A_ (W)w);	1883	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	1884	if (expect_false (!ev_is_active (w)))
1654	return;	1885	return;
1655		1886
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1887	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1657		1888
1658	{	1889	{
1659	int active = ((W)w)->active;	1890	int active = ((W)w)->active;
1660		1891
1661	if (expect_true (--active < --timercnt))	1892	if (expect_true (--active < --timercnt))
1662	{	1893	{
1663	timers [active] = timers [timercnt];	1894	timers [active] = timers [timercnt];
1664	adjustheap ((WT *)timers, timercnt, active);	1895	adjustheap (timers, timercnt, active);
1665	}	1896	}
1666	}	1897	}
1667		1898
1668	((WT)w)->at -= mn_now;	1899	((WT)w)->at -= mn_now;
1669		1900
…		…
1676	if (ev_is_active (w))	1907	if (ev_is_active (w))
1677	{	1908	{
1678	if (w->repeat)	1909	if (w->repeat)
1679	{	1910	{
1680	((WT)w)->at = mn_now + w->repeat;	1911	((WT)w)->at = mn_now + w->repeat;
1681	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1912	adjustheap (timers, timercnt, ((W)w)->active - 1);
1682	}	1913	}
1683	else	1914	else
1684	ev_timer_stop (EV_A_ w);	1915	ev_timer_stop (EV_A_ w);
1685	}	1916	}
1686	else if (w->repeat)	1917	else if (w->repeat)
…		…
1707	}	1938	}
1708	else	1939	else
1709	((WT)w)->at = w->offset;	1940	((WT)w)->at = w->offset;
1710		1941
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	1942	ev_start (EV_A_ (W)w, ++periodiccnt);
1712	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1943	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1713	periodics [periodiccnt - 1] = w;	1944	periodics [periodiccnt - 1] = (WT)w;
1714	upheap ((WT *)periodics, periodiccnt - 1);	1945	upheap (periodics, periodiccnt - 1);
1715		1946
1716	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1947	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1717	}	1948	}
1718		1949
1719	void noinline	1950	void noinline
…		…
1721	{	1952	{
1722	clear_pending (EV_A_ (W)w);	1953	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	1954	if (expect_false (!ev_is_active (w)))
1724	return;	1955	return;
1725		1956
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1957	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1727		1958
1728	{	1959	{
1729	int active = ((W)w)->active;	1960	int active = ((W)w)->active;
1730		1961
1731	if (expect_true (--active < --periodiccnt))	1962	if (expect_true (--active < --periodiccnt))
1732	{	1963	{
1733	periodics [active] = periodics [periodiccnt];	1964	periodics [active] = periodics [periodiccnt];
1734	adjustheap ((WT *)periodics, periodiccnt, active);	1965	adjustheap (periodics, periodiccnt, active);
1735	}	1966	}
1736	}	1967	}
1737		1968
1738	ev_stop (EV_A_ (W)w);	1969	ev_stop (EV_A_ (W)w);
1739	}	1970	}
…		…
1760	if (expect_false (ev_is_active (w)))	1991	if (expect_false (ev_is_active (w)))
1761	return;	1992	return;
1762		1993
1763	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1994	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1764		1995
		1996	evpipe_init (EV_A);
		1997
		1998	{
		1999	#ifndef _WIN32
		2000	sigset_t full, prev;
		2001	sigfillset (&full);
		2002	sigprocmask (SIG_SETMASK, &full, &prev);
		2003	#endif
		2004
		2005	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2006
		2007	#ifndef _WIN32
		2008	sigprocmask (SIG_SETMASK, &prev, 0);
		2009	#endif
		2010	}
		2011
1765	ev_start (EV_A_ (W)w, 1);	2012	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);	2013	wlist_add (&signals [w->signum - 1].head, (WL)w);
1768		2014
1769	if (!((WL)w)->next)	2015	if (!((WL)w)->next)
1770	{	2016	{
1771	#if _WIN32	2017	#if _WIN32
1772	signal (w->signum, sighandler);	2018	signal (w->signum, ev_sighandler);
1773	#else	2019	#else
1774	struct sigaction sa;	2020	struct sigaction sa;
1775	sa.sa_handler = sighandler;	2021	sa.sa_handler = ev_sighandler;
1776	sigfillset (&sa.sa_mask);	2022	sigfillset (&sa.sa_mask);
1777	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2023	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1778	sigaction (w->signum, &sa, 0);	2024	sigaction (w->signum, &sa, 0);
1779	#endif	2025	#endif
1780	}	2026	}
…		…
1785	{	2031	{
1786	clear_pending (EV_A_ (W)w);	2032	clear_pending (EV_A_ (W)w);
1787	if (expect_false (!ev_is_active (w)))	2033	if (expect_false (!ev_is_active (w)))
1788	return;	2034	return;
1789		2035
1790	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2036	wlist_del (&signals [w->signum - 1].head, (WL)w);
1791	ev_stop (EV_A_ (W)w);	2037	ev_stop (EV_A_ (W)w);
1792		2038
1793	if (!signals [w->signum - 1].head)	2039	if (!signals [w->signum - 1].head)
1794	signal (w->signum, SIG_DFL);	2040	signal (w->signum, SIG_DFL);
1795	}	2041	}
…		…
1802	#endif	2048	#endif
1803	if (expect_false (ev_is_active (w)))	2049	if (expect_false (ev_is_active (w)))
1804	return;	2050	return;
1805		2051
1806	ev_start (EV_A_ (W)w, 1);	2052	ev_start (EV_A_ (W)w, 1);
1807	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2053	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1808	}	2054	}
1809		2055
1810	void	2056	void
1811	ev_child_stop (EV_P_ ev_child *w)	2057	ev_child_stop (EV_P_ ev_child *w)
1812	{	2058	{
1813	clear_pending (EV_A_ (W)w);	2059	clear_pending (EV_A_ (W)w);
1814	if (expect_false (!ev_is_active (w)))	2060	if (expect_false (!ev_is_active (w)))
1815	return;	2061	return;
1816		2062
1817	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2063	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1818	ev_stop (EV_A_ (W)w);	2064	ev_stop (EV_A_ (W)w);
1819	}	2065	}
1820		2066
1821	#if EV_STAT_ENABLE	2067	#if EV_STAT_ENABLE
1822		2068
…		…
2164		2410
2165	#if EV_EMBED_ENABLE	2411	#if EV_EMBED_ENABLE
2166	void noinline	2412	void noinline
2167	ev_embed_sweep (EV_P_ ev_embed *w)	2413	ev_embed_sweep (EV_P_ ev_embed *w)
2168	{	2414	{
2169	ev_loop (w->loop, EVLOOP_NONBLOCK);	2415	ev_loop (w->other, EVLOOP_NONBLOCK);
2170	}	2416	}
2171		2417
2172	static void	2418	static void
2173	embed_cb (EV_P_ ev_io *io, int revents)	2419	embed_io_cb (EV_P_ ev_io *io, int revents)
2174	{	2420	{
2175	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2421	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2176		2422
2177	if (ev_cb (w))	2423	if (ev_cb (w))
2178	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2424	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2179	else	2425	else
2180	ev_embed_sweep (loop, w);	2426	ev_loop (w->other, EVLOOP_NONBLOCK);
2181	}	2427	}
		2428
		2429	static void
		2430	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2431	{
		2432	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2433
		2434	{
		2435	struct ev_loop *loop = w->other;
		2436
		2437	while (fdchangecnt)
		2438	{
		2439	fd_reify (EV_A);
		2440	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2441	}
		2442	}
		2443	}
		2444
		2445	#if 0
		2446	static void
		2447	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2448	{
		2449	ev_idle_stop (EV_A_ idle);
		2450	}
		2451	#endif
2182		2452
2183	void	2453	void
2184	ev_embed_start (EV_P_ ev_embed *w)	2454	ev_embed_start (EV_P_ ev_embed *w)
2185	{	2455	{
2186	if (expect_false (ev_is_active (w)))	2456	if (expect_false (ev_is_active (w)))
2187	return;	2457	return;
2188		2458
2189	{	2459	{
2190	struct ev_loop *loop = w->loop;	2460	struct ev_loop *loop = w->other;
2191	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2461	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2192	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2462	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2193	}	2463	}
2194		2464
2195	ev_set_priority (&w->io, ev_priority (w));	2465	ev_set_priority (&w->io, ev_priority (w));
2196	ev_io_start (EV_A_ &w->io);	2466	ev_io_start (EV_A_ &w->io);
2197		2467
		2468	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2469	ev_set_priority (&w->prepare, EV_MINPRI);
		2470	ev_prepare_start (EV_A_ &w->prepare);
		2471
		2472	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2473
2198	ev_start (EV_A_ (W)w, 1);	2474	ev_start (EV_A_ (W)w, 1);
2199	}	2475	}
2200		2476
2201	void	2477	void
2202	ev_embed_stop (EV_P_ ev_embed *w)	2478	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2204	clear_pending (EV_A_ (W)w);	2480	clear_pending (EV_A_ (W)w);
2205	if (expect_false (!ev_is_active (w)))	2481	if (expect_false (!ev_is_active (w)))
2206	return;	2482	return;
2207		2483
2208	ev_io_stop (EV_A_ &w->io);	2484	ev_io_stop (EV_A_ &w->io);
		2485	ev_prepare_stop (EV_A_ &w->prepare);
2209		2486
2210	ev_stop (EV_A_ (W)w);	2487	ev_stop (EV_A_ (W)w);
2211	}	2488	}
2212	#endif	2489	#endif
2213		2490
…		…
2238		2515
2239	ev_stop (EV_A_ (W)w);	2516	ev_stop (EV_A_ (W)w);
2240	}	2517	}
2241	#endif	2518	#endif
2242		2519
		2520	#if EV_ASYNC_ENABLE
		2521	void
		2522	ev_async_start (EV_P_ ev_async *w)
		2523	{
		2524	if (expect_false (ev_is_active (w)))
		2525	return;
		2526
		2527	evpipe_init (EV_A);
		2528
		2529	ev_start (EV_A_ (W)w, ++asynccnt);
		2530	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2531	asyncs [asynccnt - 1] = w;
		2532	}
		2533
		2534	void
		2535	ev_async_stop (EV_P_ ev_async *w)
		2536	{
		2537	clear_pending (EV_A_ (W)w);
		2538	if (expect_false (!ev_is_active (w)))
		2539	return;
		2540
		2541	{
		2542	int active = ((W)w)->active;
		2543	asyncs [active - 1] = asyncs [--asynccnt];
		2544	((W)asyncs [active - 1])->active = active;
		2545	}
		2546
		2547	ev_stop (EV_A_ (W)w);
		2548	}
		2549
		2550	void
		2551	ev_async_send (EV_P_ ev_async *w)
		2552	{
		2553	w->sent = 1;
		2554	evpipe_write (EV_A_ &gotasync);
		2555	}
		2556	#endif
		2557
2243	/*****************************************************************************/	2558	/*****************************************************************************/
2244		2559
2245	struct ev_once	2560	struct ev_once
2246	{	2561	{
2247	ev_io io;	2562	ev_io io;
…		…
2302	ev_timer_set (&once->to, timeout, 0.);	2617	ev_timer_set (&once->to, timeout, 0.);
2303	ev_timer_start (EV_A_ &once->to);	2618	ev_timer_start (EV_A_ &once->to);
2304	}	2619	}
2305	}	2620	}
2306		2621
		2622	#if EV_MULTIPLICITY
		2623	#include "ev_wrap.h"
		2624	#endif
		2625
2307	#ifdef __cplusplus	2626	#ifdef __cplusplus
2308	}	2627	}
2309	#endif	2628	#endif
2310		2629

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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 1.223 by root, Sun Apr 6 14:34:50 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 1.223 by root, Sun Apr 6 14:34:50 2008 UTC