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

Comparing libev/ev.c (file contents):
Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC vs.
Revision 1.230 by root, Fri May 2 08:13:16 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	/*
…		…
230		294
231	#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) */
232	#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) */
233	/#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 */
234		298
235	#if __GNUC__ >= 3	299	#if __GNUC__ >= 4
236	# define expect(expr,value) __builtin_expect ((expr),(value))	300	# define expect(expr,value) __builtin_expect ((expr),(value))
237	# define noinline __attribute__ ((noinline))	301	# define noinline __attribute__ ((noinline))
238	#else	302	#else
239	# define expect(expr,value) (expr)	303	# define expect(expr,value) (expr)
240	# define noinline	304	# define noinline
241	# if __STDC_VERSION__ < 199901L	305	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
242	# define inline	306	# define inline
243	# endif	307	# endif
244	#endif	308	#endif
245		309
246	#define expect_false(expr) expect ((expr) != 0, 0)	310	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
261		325
262	typedef ev_watcher *W;	326	typedef ev_watcher *W;
263	typedef ev_watcher_list *WL;	327	typedef ev_watcher_list *WL;
264	typedef ev_watcher_time *WT;	328	typedef ev_watcher_time *WT;
265		329
		330	#define ev_active(w) ((W)(w))->active
		331	#define ev_at(w) ((WT)(w))->at
		332
		333	#if EV_USE_MONOTONIC
		334	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		335	/* giving it a reasonably high chance of working on typical architetcures */
266	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	336	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		337	#endif
267		338
268	#ifdef _WIN32	339	#ifdef _WIN32
269	# include "ev_win32.c"	340	# include "ev_win32.c"
270	#endif	341	#endif
271		342
…		…
292	perror (msg);	363	perror (msg);
293	abort ();	364	abort ();
294	}	365	}
295	}	366	}
296		367
		368	static void *
		369	ev_realloc_emul (void *ptr, long size)
		370	{
		371	/* some systems, notably openbsd and darwin, fail to properly
		372	* implement realloc (x, 0) (as required by both ansi c-98 and
		373	* the single unix specification, so work around them here.
		374	*/
		375
		376	if (size)
		377	return realloc (ptr, size);
		378
		379	free (ptr);
		380	return 0;
		381	}
		382
297	static void (alloc)(void *ptr, long size);	383	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
298		384
299	void	385	void
300	ev_set_allocator (void (cb)(void *ptr, long size))	386	ev_set_allocator (void (cb)(void *ptr, long size))
301	{	387	{
302	alloc = cb;	388	alloc = cb;
303	}	389	}
304		390
305	inline_speed void *	391	inline_speed void *
306	ev_realloc (void *ptr, long size)	392	ev_realloc (void *ptr, long size)
307	{	393	{
308	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	394	ptr = alloc (ptr, size);
309		395
310	if (!ptr && size)	396	if (!ptr && size)
311	{	397	{
312	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	398	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
313	abort ();	399	abort ();
…		…
407	{	493	{
408	return ev_rt_now;	494	return ev_rt_now;
409	}	495	}
410	#endif	496	#endif
411		497
		498	void
		499	ev_sleep (ev_tstamp delay)
		500	{
		501	if (delay > 0.)
		502	{
		503	#if EV_USE_NANOSLEEP
		504	struct timespec ts;
		505
		506	ts.tv_sec = (time_t)delay;
		507	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		508
		509	nanosleep (&ts, 0);
		510	#elif defined(_WIN32)
		511	Sleep ((unsigned long)(delay * 1e3));
		512	#else
		513	struct timeval tv;
		514
		515	tv.tv_sec = (time_t)delay;
		516	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		517
		518	select (0, 0, 0, 0, &tv);
		519	#endif
		520	}
		521	}
		522
		523	/*****************************************************************************/
		524
412	int inline_size	525	int inline_size
413	array_nextsize (int elem, int cur, int cnt)	526	array_nextsize (int elem, int cur, int cnt)
414	{	527	{
415	int ncur = cur + 1;	528	int ncur = cur + 1;
416		529
…		…
533	{	646	{
534	int fd = fdchanges [i];	647	int fd = fdchanges [i];
535	ANFD *anfd = anfds + fd;	648	ANFD *anfd = anfds + fd;
536	ev_io *w;	649	ev_io *w;
537		650
538	int events = 0;	651	unsigned char events = 0;
539		652
540	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	653	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
541	events \|= w->events;	654	events \|= (unsigned char)w->events;
542		655
543	#if EV_SELECT_IS_WINSOCKET	656	#if EV_SELECT_IS_WINSOCKET
544	if (events)	657	if (events)
545	{	658	{
546	unsigned long argp;	659	unsigned long argp;
		660	#ifdef EV_FD_TO_WIN32_HANDLE
		661	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		662	#else
547	anfd->handle = _get_osfhandle (fd);	663	anfd->handle = _get_osfhandle (fd);
		664	#endif
548	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	665	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
549	}	666	}
550	#endif	667	#endif
551		668
		669	{
		670	unsigned char o_events = anfd->events;
		671	unsigned char o_reify = anfd->reify;
		672
552	anfd->reify = 0;	673	anfd->reify = 0;
553
554	backend_modify (EV_A_ fd, anfd->events, events);
555	anfd->events = events;	674	anfd->events = events;
		675
		676	if (o_events != events \|\| o_reify & EV_IOFDSET)
		677	backend_modify (EV_A_ fd, o_events, events);
		678	}
556	}	679	}
557		680
558	fdchangecnt = 0;	681	fdchangecnt = 0;
559	}	682	}
560		683
561	void inline_size	684	void inline_size
562	fd_change (EV_P_ int fd)	685	fd_change (EV_P_ int fd, int flags)
563	{	686	{
564	if (expect_false (anfds [fd].reify))	687	unsigned char reify = anfds [fd].reify;
565	return;
566
567	anfds [fd].reify = 1;	688	anfds [fd].reify \|= flags;
568		689
		690	if (expect_true (!reify))
		691	{
569	++fdchangecnt;	692	++fdchangecnt;
570	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	693	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
571	fdchanges [fdchangecnt - 1] = fd;	694	fdchanges [fdchangecnt - 1] = fd;
		695	}
572	}	696	}
573		697
574	void inline_speed	698	void inline_speed
575	fd_kill (EV_P_ int fd)	699	fd_kill (EV_P_ int fd)
576	{	700	{
…		…
627		751
628	for (fd = 0; fd < anfdmax; ++fd)	752	for (fd = 0; fd < anfdmax; ++fd)
629	if (anfds [fd].events)	753	if (anfds [fd].events)
630	{	754	{
631	anfds [fd].events = 0;	755	anfds [fd].events = 0;
632	fd_change (EV_A_ fd);	756	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
633	}	757	}
634	}	758	}
635		759
636	/*****************************************************************************/	760	/*****************************************************************************/
637		761
		762	/* towards the root */
638	void inline_speed	763	void inline_speed
639	upheap (WT *heap, int k)	764	upheap (WT *heap, int k)
640	{	765	{
641	WT w = heap [k];	766	WT w = heap [k];
642		767
643	while (k)	768	for (;;)
644	{	769	{
645	int p = (k - 1) >> 1;	770	int p = k >> 1;
646		771
		772	/* maybe we could use a dummy element at heap [0]? */
647	if (heap [p]->at <= w->at)	773	if (!p \|\| heap [p]->at <= w->at)
648	break;	774	break;
649		775
650	heap [k] = heap [p];	776	heap [k] = heap [p];
651	((W)heap [k])->active = k + 1;	777	ev_active (heap [k]) = k;
652	k = p;	778	k = p;
653	}	779	}
654		780
655	heap [k] = w;	781	heap [k] = w;
656	((W)heap [k])->active = k + 1;	782	ev_active (heap [k]) = k;
657
658	}	783	}
659		784
		785	/* away from the root */
660	void inline_speed	786	void inline_speed
661	downheap (WT *heap, int N, int k)	787	downheap (WT *heap, int N, int k)
662	{	788	{
663	WT w = heap [k];	789	WT w = heap [k];
664		790
665	for (;;)	791	for (;;)
666	{	792	{
667	int c = (k << 1) + 1;	793	int c = k << 1;
668		794
669	if (c >= N)	795	if (c > N)
670	break;	796	break;
671		797
672	c += c + 1 < N && heap [c]->at > heap [c + 1]->at	798	c += c < N && heap [c]->at > heap [c + 1]->at
673	? 1 : 0;	799	? 1 : 0;
674		800
675	if (w->at <= heap [c]->at)	801	if (w->at <= heap [c]->at)
676	break;	802	break;
677		803
678	heap [k] = heap [c];	804	heap [k] = heap [c];
679	((W)heap [k])->active = k + 1;	805	ev_active (heap [k]) = k;
680		806
681	k = c;	807	k = c;
682	}	808	}
683		809
684	heap [k] = w;	810	heap [k] = w;
685	((W)heap [k])->active = k + 1;	811	ev_active (heap [k]) = k;
686	}	812	}
687		813
688	void inline_size	814	void inline_size
689	adjustheap (WT *heap, int N, int k)	815	adjustheap (WT *heap, int N, int k)
690	{	816	{
…		…
695	/*****************************************************************************/	821	/*****************************************************************************/
696		822
697	typedef struct	823	typedef struct
698	{	824	{
699	WL head;	825	WL head;
700	sig_atomic_t volatile gotsig;	826	EV_ATOMIC_T gotsig;
701	} ANSIG;	827	} ANSIG;
702		828
703	static ANSIG *signals;	829	static ANSIG *signals;
704	static int signalmax;	830	static int signalmax;
705		831
706	static int sigpipe [2];	832	static EV_ATOMIC_T gotsig;
707	static sig_atomic_t volatile gotsig;
708	static ev_io sigev;
709		833
710	void inline_size	834	void inline_size
711	signals_init (ANSIG *base, int count)	835	signals_init (ANSIG *base, int count)
712	{	836	{
713	while (count--)	837	while (count--)
…		…
717		841
718	++base;	842	++base;
719	}	843	}
720	}	844	}
721		845
722	static void	846	/*****************************************************************************/
723	sighandler (int signum)
724	{
725	#if _WIN32
726	signal (signum, sighandler);
727	#endif
728
729	signals [signum - 1].gotsig = 1;
730
731	if (!gotsig)
732	{
733	int old_errno = errno;
734	gotsig = 1;
735	write (sigpipe [1], &signum, 1);
736	errno = old_errno;
737	}
738	}
739
740	void noinline
741	ev_feed_signal_event (EV_P_ int signum)
742	{
743	WL w;
744
745	#if EV_MULTIPLICITY
746	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
747	#endif
748
749	--signum;
750
751	if (signum < 0 \|\| signum >= signalmax)
752	return;
753
754	signals [signum].gotsig = 0;
755
756	for (w = signals [signum].head; w; w = w->next)
757	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
758	}
759
760	static void
761	sigcb (EV_P_ ev_io *iow, int revents)
762	{
763	int signum;
764
765	read (sigpipe [0], &revents, 1);
766	gotsig = 0;
767
768	for (signum = signalmax; signum--; )
769	if (signals [signum].gotsig)
770	ev_feed_signal_event (EV_A_ signum + 1);
771	}
772		847
773	void inline_speed	848	void inline_speed
774	fd_intern (int fd)	849	fd_intern (int fd)
775	{	850	{
776	#ifdef _WIN32	851	#ifdef _WIN32
…		…
781	fcntl (fd, F_SETFL, O_NONBLOCK);	856	fcntl (fd, F_SETFL, O_NONBLOCK);
782	#endif	857	#endif
783	}	858	}
784		859
785	static void noinline	860	static void noinline
786	siginit (EV_P)	861	evpipe_init (EV_P)
787	{	862	{
		863	if (!ev_is_active (&pipeev))
		864	{
		865	#if EV_USE_EVENTFD
		866	if ((evfd = eventfd (0, 0)) >= 0)
		867	{
		868	evpipe [0] = -1;
		869	fd_intern (evfd);
		870	ev_io_set (&pipeev, evfd, EV_READ);
		871	}
		872	else
		873	#endif
		874	{
		875	while (pipe (evpipe))
		876	syserr ("(libev) error creating signal/async pipe");
		877
788	fd_intern (sigpipe [0]);	878	fd_intern (evpipe [0]);
789	fd_intern (sigpipe [1]);	879	fd_intern (evpipe [1]);
		880	ev_io_set (&pipeev, evpipe [0], EV_READ);
		881	}
790		882
791	ev_io_set (&sigev, sigpipe [0], EV_READ);
792	ev_io_start (EV_A_ &sigev);	883	ev_io_start (EV_A_ &pipeev);
793	ev_unref (EV_A); /* child watcher should not keep loop alive */	884	ev_unref (EV_A); /* watcher should not keep loop alive */
		885	}
		886	}
		887
		888	void inline_size
		889	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		890	{
		891	if (!*flag)
		892	{
		893	int old_errno = errno; /* save errno because write might clobber it */
		894
		895	*flag = 1;
		896
		897	#if EV_USE_EVENTFD
		898	if (evfd >= 0)
		899	{
		900	uint64_t counter = 1;
		901	write (evfd, &counter, sizeof (uint64_t));
		902	}
		903	else
		904	#endif
		905	write (evpipe [1], &old_errno, 1);
		906
		907	errno = old_errno;
		908	}
		909	}
		910
		911	static void
		912	pipecb (EV_P_ ev_io *iow, int revents)
		913	{
		914	#if EV_USE_EVENTFD
		915	if (evfd >= 0)
		916	{
		917	uint64_t counter = 1;
		918	read (evfd, &counter, sizeof (uint64_t));
		919	}
		920	else
		921	#endif
		922	{
		923	char dummy;
		924	read (evpipe [0], &dummy, 1);
		925	}
		926
		927	if (gotsig && ev_is_default_loop (EV_A))
		928	{
		929	int signum;
		930	gotsig = 0;
		931
		932	for (signum = signalmax; signum--; )
		933	if (signals [signum].gotsig)
		934	ev_feed_signal_event (EV_A_ signum + 1);
		935	}
		936
		937	#if EV_ASYNC_ENABLE
		938	if (gotasync)
		939	{
		940	int i;
		941	gotasync = 0;
		942
		943	for (i = asynccnt; i--; )
		944	if (asyncs [i]->sent)
		945	{
		946	asyncs [i]->sent = 0;
		947	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		948	}
		949	}
		950	#endif
794	}	951	}
795		952
796	/*****************************************************************************/	953	/*****************************************************************************/
797		954
		955	static void
		956	ev_sighandler (int signum)
		957	{
		958	#if EV_MULTIPLICITY
		959	struct ev_loop *loop = &default_loop_struct;
		960	#endif
		961
		962	#if _WIN32
		963	signal (signum, ev_sighandler);
		964	#endif
		965
		966	signals [signum - 1].gotsig = 1;
		967	evpipe_write (EV_A_ &gotsig);
		968	}
		969
		970	void noinline
		971	ev_feed_signal_event (EV_P_ int signum)
		972	{
		973	WL w;
		974
		975	#if EV_MULTIPLICITY
		976	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		977	#endif
		978
		979	--signum;
		980
		981	if (signum < 0 \|\| signum >= signalmax)
		982	return;
		983
		984	signals [signum].gotsig = 0;
		985
		986	for (w = signals [signum].head; w; w = w->next)
		987	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		988	}
		989
		990	/*****************************************************************************/
		991
798	static ev_child *childs [EV_PID_HASHSIZE];	992	static WL childs [EV_PID_HASHSIZE];
799		993
800	#ifndef _WIN32	994	#ifndef _WIN32
801		995
802	static ev_signal childev;	996	static ev_signal childev;
803		997
		998	#ifndef WIFCONTINUED
		999	# define WIFCONTINUED(status) 0
		1000	#endif
		1001
804	void inline_speed	1002	void inline_speed
805	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1003	child_reap (EV_P_ int chain, int pid, int status)
806	{	1004	{
807	ev_child *w;	1005	ev_child *w;
		1006	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
808		1007
809	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1008	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1009	{
810	if (w->pid == pid \|\| !w->pid)	1010	if ((w->pid == pid \|\| !w->pid)
		1011	&& (!traced \|\| (w->flags & 1)))
811	{	1012	{
812	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	1013	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
813	w->rpid = pid;	1014	w->rpid = pid;
814	w->rstatus = status;	1015	w->rstatus = status;
815	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1016	ev_feed_event (EV_A_ (W)w, EV_CHILD);
816	}	1017	}
		1018	}
817	}	1019	}
818		1020
819	#ifndef WCONTINUED	1021	#ifndef WCONTINUED
820	# define WCONTINUED 0	1022	# define WCONTINUED 0
821	#endif	1023	#endif
…		…
830	if (!WCONTINUED	1032	if (!WCONTINUED
831	\|\| errno != EINVAL	1033	\|\| errno != EINVAL
832	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1034	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
833	return;	1035	return;
834		1036
835	/* make sure we are called again until all childs have been reaped */	1037	/* make sure we are called again until all children have been reaped */
836	/* we need to do it this way so that the callback gets called before we continue */	1038	/* we need to do it this way so that the callback gets called before we continue */
837	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1039	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
838		1040
839	child_reap (EV_A_ sw, pid, pid, status);	1041	child_reap (EV_A_ pid, pid, status);
840	if (EV_PID_HASHSIZE > 1)	1042	if (EV_PID_HASHSIZE > 1)
841	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1043	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
842	}	1044	}
843		1045
844	#endif	1046	#endif
845		1047
846	/*****************************************************************************/	1048	/*****************************************************************************/
…		…
918	}	1120	}
919		1121
920	unsigned int	1122	unsigned int
921	ev_embeddable_backends (void)	1123	ev_embeddable_backends (void)
922	{	1124	{
923	return EVBACKEND_EPOLL	1125	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
924	\| EVBACKEND_KQUEUE	1126
925	\| EVBACKEND_PORT;	1127	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1128	/* please fix it and tell me how to detect the fix */
		1129	flags &= ~EVBACKEND_EPOLL;
		1130
		1131	return flags;
926	}	1132	}
927		1133
928	unsigned int	1134	unsigned int
929	ev_backend (EV_P)	1135	ev_backend (EV_P)
930	{	1136	{
…		…
933		1139
934	unsigned int	1140	unsigned int
935	ev_loop_count (EV_P)	1141	ev_loop_count (EV_P)
936	{	1142	{
937	return loop_count;	1143	return loop_count;
		1144	}
		1145
		1146	void
		1147	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1148	{
		1149	io_blocktime = interval;
		1150	}
		1151
		1152	void
		1153	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1154	{
		1155	timeout_blocktime = interval;
938	}	1156	}
939		1157
940	static void noinline	1158	static void noinline
941	loop_init (EV_P_ unsigned int flags)	1159	loop_init (EV_P_ unsigned int flags)
942	{	1160	{
…		…
948	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1166	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
949	have_monotonic = 1;	1167	have_monotonic = 1;
950	}	1168	}
951	#endif	1169	#endif
952		1170
953	ev_rt_now = ev_time ();	1171	ev_rt_now = ev_time ();
954	mn_now = get_clock ();	1172	mn_now = get_clock ();
955	now_floor = mn_now;	1173	now_floor = mn_now;
956	rtmn_diff = ev_rt_now - mn_now;	1174	rtmn_diff = ev_rt_now - mn_now;
		1175
		1176	io_blocktime = 0.;
		1177	timeout_blocktime = 0.;
		1178	backend = 0;
		1179	backend_fd = -1;
		1180	gotasync = 0;
		1181	#if EV_USE_INOTIFY
		1182	fs_fd = -2;
		1183	#endif
957		1184
958	/* pid check not overridable via env */	1185	/* pid check not overridable via env */
959	#ifndef _WIN32	1186	#ifndef _WIN32
960	if (flags & EVFLAG_FORKCHECK)	1187	if (flags & EVFLAG_FORKCHECK)
961	curpid = getpid ();	1188	curpid = getpid ();
…		…
964	if (!(flags & EVFLAG_NOENV)	1191	if (!(flags & EVFLAG_NOENV)
965	&& !enable_secure ()	1192	&& !enable_secure ()
966	&& getenv ("LIBEV_FLAGS"))	1193	&& getenv ("LIBEV_FLAGS"))
967	flags = atoi (getenv ("LIBEV_FLAGS"));	1194	flags = atoi (getenv ("LIBEV_FLAGS"));
968		1195
969	if (!(flags & 0x0000ffffUL))	1196	if (!(flags & 0x0000ffffU))
970	flags \|= ev_recommended_backends ();	1197	flags \|= ev_recommended_backends ();
971
972	backend = 0;
973	backend_fd = -1;
974	#if EV_USE_INOTIFY
975	fs_fd = -2;
976	#endif
977		1198
978	#if EV_USE_PORT	1199	#if EV_USE_PORT
979	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1200	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
980	#endif	1201	#endif
981	#if EV_USE_KQUEUE	1202	#if EV_USE_KQUEUE
…		…
989	#endif	1210	#endif
990	#if EV_USE_SELECT	1211	#if EV_USE_SELECT
991	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1212	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
992	#endif	1213	#endif
993		1214
994	ev_init (&sigev, sigcb);	1215	ev_init (&pipeev, pipecb);
995	ev_set_priority (&sigev, EV_MAXPRI);	1216	ev_set_priority (&pipeev, EV_MAXPRI);
996	}	1217	}
997	}	1218	}
998		1219
999	static void noinline	1220	static void noinline
1000	loop_destroy (EV_P)	1221	loop_destroy (EV_P)
1001	{	1222	{
1002	int i;	1223	int i;
		1224
		1225	if (ev_is_active (&pipeev))
		1226	{
		1227	ev_ref (EV_A); /* signal watcher */
		1228	ev_io_stop (EV_A_ &pipeev);
		1229
		1230	#if EV_USE_EVENTFD
		1231	if (evfd >= 0)
		1232	close (evfd);
		1233	#endif
		1234
		1235	if (evpipe [0] >= 0)
		1236	{
		1237	close (evpipe [0]);
		1238	close (evpipe [1]);
		1239	}
		1240	}
1003		1241
1004	#if EV_USE_INOTIFY	1242	#if EV_USE_INOTIFY
1005	if (fs_fd >= 0)	1243	if (fs_fd >= 0)
1006	close (fs_fd);	1244	close (fs_fd);
1007	#endif	1245	#endif
…		…
1030	array_free (pending, [i]);	1268	array_free (pending, [i]);
1031	#if EV_IDLE_ENABLE	1269	#if EV_IDLE_ENABLE
1032	array_free (idle, [i]);	1270	array_free (idle, [i]);
1033	#endif	1271	#endif
1034	}	1272	}
		1273
		1274	ev_free (anfds); anfdmax = 0;
1035		1275
1036	/* have to use the microsoft-never-gets-it-right macro */	1276	/* have to use the microsoft-never-gets-it-right macro */
1037	array_free (fdchange, EMPTY);	1277	array_free (fdchange, EMPTY);
1038	array_free (timer, EMPTY);	1278	array_free (timer, EMPTY);
1039	#if EV_PERIODIC_ENABLE	1279	#if EV_PERIODIC_ENABLE
1040	array_free (periodic, EMPTY);	1280	array_free (periodic, EMPTY);
1041	#endif	1281	#endif
		1282	#if EV_FORK_ENABLE
		1283	array_free (fork, EMPTY);
		1284	#endif
1042	array_free (prepare, EMPTY);	1285	array_free (prepare, EMPTY);
1043	array_free (check, EMPTY);	1286	array_free (check, EMPTY);
		1287	#if EV_ASYNC_ENABLE
		1288	array_free (async, EMPTY);
		1289	#endif
1044		1290
1045	backend = 0;	1291	backend = 0;
1046	}	1292	}
1047		1293
		1294	#if EV_USE_INOTIFY
1048	void inline_size infy_fork (EV_P);	1295	void inline_size infy_fork (EV_P);
		1296	#endif
1049		1297
1050	void inline_size	1298	void inline_size
1051	loop_fork (EV_P)	1299	loop_fork (EV_P)
1052	{	1300	{
1053	#if EV_USE_PORT	1301	#if EV_USE_PORT
…		…
1061	#endif	1309	#endif
1062	#if EV_USE_INOTIFY	1310	#if EV_USE_INOTIFY
1063	infy_fork (EV_A);	1311	infy_fork (EV_A);
1064	#endif	1312	#endif
1065		1313
1066	if (ev_is_active (&sigev))	1314	if (ev_is_active (&pipeev))
1067	{	1315	{
1068	/* default loop */	1316	/* this "locks" the handlers against writing to the pipe */
		1317	/* while we modify the fd vars */
		1318	gotsig = 1;
		1319	#if EV_ASYNC_ENABLE
		1320	gotasync = 1;
		1321	#endif
1069		1322
1070	ev_ref (EV_A);	1323	ev_ref (EV_A);
1071	ev_io_stop (EV_A_ &sigev);	1324	ev_io_stop (EV_A_ &pipeev);
		1325
		1326	#if EV_USE_EVENTFD
		1327	if (evfd >= 0)
		1328	close (evfd);
		1329	#endif
		1330
		1331	if (evpipe [0] >= 0)
		1332	{
1072	close (sigpipe [0]);	1333	close (evpipe [0]);
1073	close (sigpipe [1]);	1334	close (evpipe [1]);
		1335	}
1074		1336
1075	while (pipe (sigpipe))
1076	syserr ("(libev) error creating pipe");
1077
1078	siginit (EV_A);	1337	evpipe_init (EV_A);
		1338	/* now iterate over everything, in case we missed something */
		1339	pipecb (EV_A_ &pipeev, EV_READ);
1079	}	1340	}
1080		1341
1081	postfork = 0;	1342	postfork = 0;
1082	}	1343	}
1083		1344
…		…
1105	}	1366	}
1106		1367
1107	void	1368	void
1108	ev_loop_fork (EV_P)	1369	ev_loop_fork (EV_P)
1109	{	1370	{
1110	postfork = 1;	1371	postfork = 1; /* must be in line with ev_default_fork */
1111	}	1372	}
1112		1373
1113	#endif	1374	#endif
1114		1375
1115	#if EV_MULTIPLICITY	1376	#if EV_MULTIPLICITY
…		…
1118	#else	1379	#else
1119	int	1380	int
1120	ev_default_loop (unsigned int flags)	1381	ev_default_loop (unsigned int flags)
1121	#endif	1382	#endif
1122	{	1383	{
1123	if (sigpipe [0] == sigpipe [1])
1124	if (pipe (sigpipe))
1125	return 0;
1126
1127	if (!ev_default_loop_ptr)	1384	if (!ev_default_loop_ptr)
1128	{	1385	{
1129	#if EV_MULTIPLICITY	1386	#if EV_MULTIPLICITY
1130	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1387	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1131	#else	1388	#else
…		…
1134		1391
1135	loop_init (EV_A_ flags);	1392	loop_init (EV_A_ flags);
1136		1393
1137	if (ev_backend (EV_A))	1394	if (ev_backend (EV_A))
1138	{	1395	{
1139	siginit (EV_A);
1140
1141	#ifndef _WIN32	1396	#ifndef _WIN32
1142	ev_signal_init (&childev, childcb, SIGCHLD);	1397	ev_signal_init (&childev, childcb, SIGCHLD);
1143	ev_set_priority (&childev, EV_MAXPRI);	1398	ev_set_priority (&childev, EV_MAXPRI);
1144	ev_signal_start (EV_A_ &childev);	1399	ev_signal_start (EV_A_ &childev);
1145	ev_unref (EV_A); /* child watcher should not keep loop alive */	1400	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1162	#ifndef _WIN32	1417	#ifndef _WIN32
1163	ev_ref (EV_A); /* child watcher */	1418	ev_ref (EV_A); /* child watcher */
1164	ev_signal_stop (EV_A_ &childev);	1419	ev_signal_stop (EV_A_ &childev);
1165	#endif	1420	#endif
1166		1421
1167	ev_ref (EV_A); /* signal watcher */
1168	ev_io_stop (EV_A_ &sigev);
1169
1170	close (sigpipe [0]); sigpipe [0] = 0;
1171	close (sigpipe [1]); sigpipe [1] = 0;
1172
1173	loop_destroy (EV_A);	1422	loop_destroy (EV_A);
1174	}	1423	}
1175		1424
1176	void	1425	void
1177	ev_default_fork (void)	1426	ev_default_fork (void)
…		…
1179	#if EV_MULTIPLICITY	1428	#if EV_MULTIPLICITY
1180	struct ev_loop *loop = ev_default_loop_ptr;	1429	struct ev_loop *loop = ev_default_loop_ptr;
1181	#endif	1430	#endif
1182		1431
1183	if (backend)	1432	if (backend)
1184	postfork = 1;	1433	postfork = 1; /* must be in line with ev_loop_fork */
1185	}	1434	}
1186		1435
1187	/*****************************************************************************/	1436	/*****************************************************************************/
1188		1437
1189	void	1438	void
…		…
1213	}	1462	}
1214		1463
1215	void inline_size	1464	void inline_size
1216	timers_reify (EV_P)	1465	timers_reify (EV_P)
1217	{	1466	{
1218	while (timercnt && ((WT)timers [0])->at <= mn_now)	1467	while (timercnt && ev_at (timers [1]) <= mn_now)
1219	{	1468	{
1220	ev_timer *w = timers [0];	1469	ev_timer w = (ev_timer )timers [1];
1221		1470
1222	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1471	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1223		1472
1224	/* first reschedule or stop timer */	1473	/* first reschedule or stop timer */
1225	if (w->repeat)	1474	if (w->repeat)
1226	{	1475	{
1227	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1476	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1228		1477
1229	((WT)w)->at += w->repeat;	1478	ev_at (w) += w->repeat;
1230	if (((WT)w)->at < mn_now)	1479	if (ev_at (w) < mn_now)
1231	((WT)w)->at = mn_now;	1480	ev_at (w) = mn_now;
1232		1481
1233	downheap ((WT *)timers, timercnt, 0);	1482	downheap (timers, timercnt, 1);
1234	}	1483	}
1235	else	1484	else
1236	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1485	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1237		1486
1238	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1487	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1241		1490
1242	#if EV_PERIODIC_ENABLE	1491	#if EV_PERIODIC_ENABLE
1243	void inline_size	1492	void inline_size
1244	periodics_reify (EV_P)	1493	periodics_reify (EV_P)
1245	{	1494	{
1246	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1495	while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1247	{	1496	{
1248	ev_periodic *w = periodics [0];	1497	ev_periodic w = (ev_periodic )periodics [1];
1249		1498
1250	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1499	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1251		1500
1252	/* first reschedule or stop timer */	1501	/* first reschedule or stop timer */
1253	if (w->reschedule_cb)	1502	if (w->reschedule_cb)
1254	{	1503	{
1255	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1504	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1256	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1505	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1257	downheap ((WT *)periodics, periodiccnt, 0);	1506	downheap (periodics, periodiccnt, 1);
1258	}	1507	}
1259	else if (w->interval)	1508	else if (w->interval)
1260	{	1509	{
1261	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1510	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1262	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;	1511	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1263	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1512	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1264	downheap ((WT *)periodics, periodiccnt, 0);	1513	downheap (periodics, periodiccnt, 1);
1265	}	1514	}
1266	else	1515	else
1267	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1516	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1268		1517
1269	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1518	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1276	int i;	1525	int i;
1277		1526
1278	/* adjust periodics after time jump */	1527	/* adjust periodics after time jump */
1279	for (i = 0; i < periodiccnt; ++i)	1528	for (i = 0; i < periodiccnt; ++i)
1280	{	1529	{
1281	ev_periodic *w = periodics [i];	1530	ev_periodic w = (ev_periodic )periodics [i];
1282		1531
1283	if (w->reschedule_cb)	1532	if (w->reschedule_cb)
1284	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1533	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1285	else if (w->interval)	1534	else if (w->interval)
1286	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1535	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1287	}	1536	}
1288		1537
1289	/* now rebuild the heap */	1538	/* now rebuild the heap */
1290	for (i = periodiccnt >> 1; i--; )	1539	for (i = periodiccnt >> 1; i--; )
1291	downheap ((WT *)periodics, periodiccnt, i);	1540	downheap (periodics, periodiccnt, i);
1292	}	1541	}
1293	#endif	1542	#endif
1294		1543
1295	#if EV_IDLE_ENABLE	1544	#if EV_IDLE_ENABLE
1296	void inline_size	1545	void inline_size
…		…
1373	{	1622	{
1374	#if EV_PERIODIC_ENABLE	1623	#if EV_PERIODIC_ENABLE
1375	periodics_reschedule (EV_A);	1624	periodics_reschedule (EV_A);
1376	#endif	1625	#endif
1377	/* adjust timers. this is easy, as the offset is the same for all of them */	1626	/* adjust timers. this is easy, as the offset is the same for all of them */
1378	for (i = 0; i < timercnt; ++i)	1627	for (i = 1; i <= timercnt; ++i)
1379	((WT)timers [i])->at += ev_rt_now - mn_now;	1628	ev_at (timers [i]) += ev_rt_now - mn_now;
1380	}	1629	}
1381		1630
1382	mn_now = ev_rt_now;	1631	mn_now = ev_rt_now;
1383	}	1632	}
1384	}	1633	}
…		…
1398	static int loop_done;	1647	static int loop_done;
1399		1648
1400	void	1649	void
1401	ev_loop (EV_P_ int flags)	1650	ev_loop (EV_P_ int flags)
1402	{	1651	{
1403	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1652	loop_done = EVUNLOOP_CANCEL;
1404	? EVUNLOOP_ONE
1405	: EVUNLOOP_CANCEL;
1406		1653
1407	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1654	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1408		1655
1409	do	1656	do
1410	{	1657	{
…		…
1444	/* update fd-related kernel structures */	1691	/* update fd-related kernel structures */
1445	fd_reify (EV_A);	1692	fd_reify (EV_A);
1446		1693
1447	/* calculate blocking time */	1694	/* calculate blocking time */
1448	{	1695	{
1449	ev_tstamp block;	1696	ev_tstamp waittime = 0.;
		1697	ev_tstamp sleeptime = 0.;
1450		1698
1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1699	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1452	block = 0.; /* do not block at all */
1453	else
1454	{	1700	{
1455	/* update time to cancel out callback processing overhead */	1701	/* update time to cancel out callback processing overhead */
1456	time_update (EV_A_ 1e100);	1702	time_update (EV_A_ 1e100);
1457		1703
1458	block = MAX_BLOCKTIME;	1704	waittime = MAX_BLOCKTIME;
1459		1705
1460	if (timercnt)	1706	if (timercnt)
1461	{	1707	{
1462	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1708	ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1463	if (block > to) block = to;	1709	if (waittime > to) waittime = to;
1464	}	1710	}
1465		1711
1466	#if EV_PERIODIC_ENABLE	1712	#if EV_PERIODIC_ENABLE
1467	if (periodiccnt)	1713	if (periodiccnt)
1468	{	1714	{
1469	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1715	ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;
1470	if (block > to) block = to;	1716	if (waittime > to) waittime = to;
1471	}	1717	}
1472	#endif	1718	#endif
1473		1719
1474	if (expect_false (block < 0.)) block = 0.;	1720	if (expect_false (waittime < timeout_blocktime))
		1721	waittime = timeout_blocktime;
		1722
		1723	sleeptime = waittime - backend_fudge;
		1724
		1725	if (expect_true (sleeptime > io_blocktime))
		1726	sleeptime = io_blocktime;
		1727
		1728	if (sleeptime)
		1729	{
		1730	ev_sleep (sleeptime);
		1731	waittime -= sleeptime;
		1732	}
1475	}	1733	}
1476		1734
1477	++loop_count;	1735	++loop_count;
1478	backend_poll (EV_A_ block);	1736	backend_poll (EV_A_ waittime);
1479		1737
1480	/* update ev_rt_now, do magic */	1738	/* update ev_rt_now, do magic */
1481	time_update (EV_A_ block);	1739	time_update (EV_A_ waittime + sleeptime);
1482	}	1740	}
1483		1741
1484	/* queue pending timers and reschedule them */	1742	/* queue pending timers and reschedule them */
1485	timers_reify (EV_A); /* relative timers called last */	1743	timers_reify (EV_A); /* relative timers called last */
1486	#if EV_PERIODIC_ENABLE	1744	#if EV_PERIODIC_ENABLE
…		…
1495	/* queue check watchers, to be executed first */	1753	/* queue check watchers, to be executed first */
1496	if (expect_false (checkcnt))	1754	if (expect_false (checkcnt))
1497	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1755	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1498		1756
1499	call_pending (EV_A);	1757	call_pending (EV_A);
1500
1501	}	1758	}
1502	while (expect_true (activecnt && !loop_done));	1759	while (expect_true (
		1760	activecnt
		1761	&& !loop_done
		1762	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1763	));
1503		1764
1504	if (loop_done == EVUNLOOP_ONE)	1765	if (loop_done == EVUNLOOP_ONE)
1505	loop_done = EVUNLOOP_CANCEL;	1766	loop_done = EVUNLOOP_CANCEL;
1506	}	1767	}
1507		1768
…		…
1598		1859
1599	assert (("ev_io_start called with negative fd", fd >= 0));	1860	assert (("ev_io_start called with negative fd", fd >= 0));
1600		1861
1601	ev_start (EV_A_ (W)w, 1);	1862	ev_start (EV_A_ (W)w, 1);
1602	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1863	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1603	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1864	wlist_add (&anfds[fd].head, (WL)w);
1604		1865
1605	fd_change (EV_A_ fd);	1866	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1867	w->events &= ~EV_IOFDSET;
1606	}	1868	}
1607		1869
1608	void noinline	1870	void noinline
1609	ev_io_stop (EV_P_ ev_io *w)	1871	ev_io_stop (EV_P_ ev_io *w)
1610	{	1872	{
…		…
1612	if (expect_false (!ev_is_active (w)))	1874	if (expect_false (!ev_is_active (w)))
1613	return;	1875	return;
1614		1876
1615	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1877	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1616		1878
1617	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1879	wlist_del (&anfds[w->fd].head, (WL)w);
1618	ev_stop (EV_A_ (W)w);	1880	ev_stop (EV_A_ (W)w);
1619		1881
1620	fd_change (EV_A_ w->fd);	1882	fd_change (EV_A_ w->fd, 1);
1621	}	1883	}
1622		1884
1623	void noinline	1885	void noinline
1624	ev_timer_start (EV_P_ ev_timer *w)	1886	ev_timer_start (EV_P_ ev_timer *w)
1625	{	1887	{
1626	if (expect_false (ev_is_active (w)))	1888	if (expect_false (ev_is_active (w)))
1627	return;	1889	return;
1628		1890
1629	((WT)w)->at += mn_now;	1891	ev_at (w) += mn_now;
1630		1892
1631	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1893	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1632		1894
1633	ev_start (EV_A_ (W)w, ++timercnt);	1895	ev_start (EV_A_ (W)w, ++timercnt);
1634	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1896	array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1635	timers [timercnt - 1] = w;	1897	timers [timercnt] = (WT)w;
1636	upheap ((WT *)timers, timercnt - 1);	1898	upheap (timers, timercnt);
1637		1899
1638	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1900	/assert (("internal timer heap corruption", timers [ev_active (w)] == w));/
1639	}	1901	}
1640		1902
1641	void noinline	1903	void noinline
1642	ev_timer_stop (EV_P_ ev_timer *w)	1904	ev_timer_stop (EV_P_ ev_timer *w)
1643	{	1905	{
1644	clear_pending (EV_A_ (W)w);	1906	clear_pending (EV_A_ (W)w);
1645	if (expect_false (!ev_is_active (w)))	1907	if (expect_false (!ev_is_active (w)))
1646	return;	1908	return;
1647		1909
1648	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1649
1650	{	1910	{
1651	int active = ((W)w)->active;	1911	int active = ev_active (w);
1652		1912
		1913	assert (("internal timer heap corruption", timers [active] == (WT)w));
		1914
1653	if (expect_true (--active < --timercnt))	1915	if (expect_true (active < timercnt))
1654	{	1916	{
1655	timers [active] = timers [timercnt];	1917	timers [active] = timers [timercnt];
1656	adjustheap ((WT *)timers, timercnt, active);	1918	adjustheap (timers, timercnt, active);
1657	}	1919	}
		1920
		1921	--timercnt;
1658	}	1922	}
1659		1923
1660	((WT)w)->at -= mn_now;	1924	ev_at (w) -= mn_now;
1661		1925
1662	ev_stop (EV_A_ (W)w);	1926	ev_stop (EV_A_ (W)w);
1663	}	1927	}
1664		1928
1665	void noinline	1929	void noinline
…		…
1667	{	1931	{
1668	if (ev_is_active (w))	1932	if (ev_is_active (w))
1669	{	1933	{
1670	if (w->repeat)	1934	if (w->repeat)
1671	{	1935	{
1672	((WT)w)->at = mn_now + w->repeat;	1936	ev_at (w) = mn_now + w->repeat;
1673	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1937	adjustheap (timers, timercnt, ev_active (w));
1674	}	1938	}
1675	else	1939	else
1676	ev_timer_stop (EV_A_ w);	1940	ev_timer_stop (EV_A_ w);
1677	}	1941	}
1678	else if (w->repeat)	1942	else if (w->repeat)
1679	{	1943	{
1680	w->at = w->repeat;	1944	ev_at (w) = w->repeat;
1681	ev_timer_start (EV_A_ w);	1945	ev_timer_start (EV_A_ w);
1682	}	1946	}
1683	}	1947	}
1684		1948
1685	#if EV_PERIODIC_ENABLE	1949	#if EV_PERIODIC_ENABLE
…		…
1688	{	1952	{
1689	if (expect_false (ev_is_active (w)))	1953	if (expect_false (ev_is_active (w)))
1690	return;	1954	return;
1691		1955
1692	if (w->reschedule_cb)	1956	if (w->reschedule_cb)
1693	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1957	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1694	else if (w->interval)	1958	else if (w->interval)
1695	{	1959	{
1696	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1960	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1697	/* this formula differs from the one in periodic_reify because we do not always round up */	1961	/* this formula differs from the one in periodic_reify because we do not always round up */
1698	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1962	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1699	}	1963	}
1700	else	1964	else
1701	((WT)w)->at = w->offset;	1965	ev_at (w) = w->offset;
1702		1966
1703	ev_start (EV_A_ (W)w, ++periodiccnt);	1967	ev_start (EV_A_ (W)w, ++periodiccnt);
1704	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1968	array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1705	periodics [periodiccnt - 1] = w;	1969	periodics [periodiccnt] = (WT)w;
1706	upheap ((WT *)periodics, periodiccnt - 1);	1970	upheap (periodics, periodiccnt);
1707		1971
1708	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1972	/assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));/
1709	}	1973	}
1710		1974
1711	void noinline	1975	void noinline
1712	ev_periodic_stop (EV_P_ ev_periodic *w)	1976	ev_periodic_stop (EV_P_ ev_periodic *w)
1713	{	1977	{
1714	clear_pending (EV_A_ (W)w);	1978	clear_pending (EV_A_ (W)w);
1715	if (expect_false (!ev_is_active (w)))	1979	if (expect_false (!ev_is_active (w)))
1716	return;	1980	return;
1717		1981
1718	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1719
1720	{	1982	{
1721	int active = ((W)w)->active;	1983	int active = ev_active (w);
1722		1984
		1985	assert (("internal periodic heap corruption", periodics [active] == (WT)w));
		1986
1723	if (expect_true (--active < --periodiccnt))	1987	if (expect_true (active < periodiccnt))
1724	{	1988	{
1725	periodics [active] = periodics [periodiccnt];	1989	periodics [active] = periodics [periodiccnt];
1726	adjustheap ((WT *)periodics, periodiccnt, active);	1990	adjustheap (periodics, periodiccnt, active);
1727	}	1991	}
		1992
		1993	--periodiccnt;
1728	}	1994	}
1729		1995
1730	ev_stop (EV_A_ (W)w);	1996	ev_stop (EV_A_ (W)w);
1731	}	1997	}
1732		1998
…		…
1751	#endif	2017	#endif
1752	if (expect_false (ev_is_active (w)))	2018	if (expect_false (ev_is_active (w)))
1753	return;	2019	return;
1754		2020
1755	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2021	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		2022
		2023	evpipe_init (EV_A);
1756		2024
1757	{	2025	{
1758	#ifndef _WIN32	2026	#ifndef _WIN32
1759	sigset_t full, prev;	2027	sigset_t full, prev;
1760	sigfillset (&full);	2028	sigfillset (&full);
…		…
1767	sigprocmask (SIG_SETMASK, &prev, 0);	2035	sigprocmask (SIG_SETMASK, &prev, 0);
1768	#endif	2036	#endif
1769	}	2037	}
1770		2038
1771	ev_start (EV_A_ (W)w, 1);	2039	ev_start (EV_A_ (W)w, 1);
1772	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2040	wlist_add (&signals [w->signum - 1].head, (WL)w);
1773		2041
1774	if (!((WL)w)->next)	2042	if (!((WL)w)->next)
1775	{	2043	{
1776	#if _WIN32	2044	#if _WIN32
1777	signal (w->signum, sighandler);	2045	signal (w->signum, ev_sighandler);
1778	#else	2046	#else
1779	struct sigaction sa;	2047	struct sigaction sa;
1780	sa.sa_handler = sighandler;	2048	sa.sa_handler = ev_sighandler;
1781	sigfillset (&sa.sa_mask);	2049	sigfillset (&sa.sa_mask);
1782	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2050	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1783	sigaction (w->signum, &sa, 0);	2051	sigaction (w->signum, &sa, 0);
1784	#endif	2052	#endif
1785	}	2053	}
…		…
1790	{	2058	{
1791	clear_pending (EV_A_ (W)w);	2059	clear_pending (EV_A_ (W)w);
1792	if (expect_false (!ev_is_active (w)))	2060	if (expect_false (!ev_is_active (w)))
1793	return;	2061	return;
1794		2062
1795	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2063	wlist_del (&signals [w->signum - 1].head, (WL)w);
1796	ev_stop (EV_A_ (W)w);	2064	ev_stop (EV_A_ (W)w);
1797		2065
1798	if (!signals [w->signum - 1].head)	2066	if (!signals [w->signum - 1].head)
1799	signal (w->signum, SIG_DFL);	2067	signal (w->signum, SIG_DFL);
1800	}	2068	}
…		…
1807	#endif	2075	#endif
1808	if (expect_false (ev_is_active (w)))	2076	if (expect_false (ev_is_active (w)))
1809	return;	2077	return;
1810		2078
1811	ev_start (EV_A_ (W)w, 1);	2079	ev_start (EV_A_ (W)w, 1);
1812	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2080	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1813	}	2081	}
1814		2082
1815	void	2083	void
1816	ev_child_stop (EV_P_ ev_child *w)	2084	ev_child_stop (EV_P_ ev_child *w)
1817	{	2085	{
1818	clear_pending (EV_A_ (W)w);	2086	clear_pending (EV_A_ (W)w);
1819	if (expect_false (!ev_is_active (w)))	2087	if (expect_false (!ev_is_active (w)))
1820	return;	2088	return;
1821		2089
1822	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2090	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1823	ev_stop (EV_A_ (W)w);	2091	ev_stop (EV_A_ (W)w);
1824	}	2092	}
1825		2093
1826	#if EV_STAT_ENABLE	2094	#if EV_STAT_ENABLE
1827		2095
…		…
2100	clear_pending (EV_A_ (W)w);	2368	clear_pending (EV_A_ (W)w);
2101	if (expect_false (!ev_is_active (w)))	2369	if (expect_false (!ev_is_active (w)))
2102	return;	2370	return;
2103		2371
2104	{	2372	{
2105	int active = ((W)w)->active;	2373	int active = ev_active (w);
2106		2374
2107	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2375	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2108	((W)idles [ABSPRI (w)][active - 1])->active = active;	2376	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2109		2377
2110	ev_stop (EV_A_ (W)w);	2378	ev_stop (EV_A_ (W)w);
2111	--idleall;	2379	--idleall;
2112	}	2380	}
2113	}	2381	}
…		…
2130	clear_pending (EV_A_ (W)w);	2398	clear_pending (EV_A_ (W)w);
2131	if (expect_false (!ev_is_active (w)))	2399	if (expect_false (!ev_is_active (w)))
2132	return;	2400	return;
2133		2401
2134	{	2402	{
2135	int active = ((W)w)->active;	2403	int active = ev_active (w);
		2404
2136	prepares [active - 1] = prepares [--preparecnt];	2405	prepares [active - 1] = prepares [--preparecnt];
2137	((W)prepares [active - 1])->active = active;	2406	ev_active (prepares [active - 1]) = active;
2138	}	2407	}
2139		2408
2140	ev_stop (EV_A_ (W)w);	2409	ev_stop (EV_A_ (W)w);
2141	}	2410	}
2142		2411
…		…
2157	clear_pending (EV_A_ (W)w);	2426	clear_pending (EV_A_ (W)w);
2158	if (expect_false (!ev_is_active (w)))	2427	if (expect_false (!ev_is_active (w)))
2159	return;	2428	return;
2160		2429
2161	{	2430	{
2162	int active = ((W)w)->active;	2431	int active = ev_active (w);
		2432
2163	checks [active - 1] = checks [--checkcnt];	2433	checks [active - 1] = checks [--checkcnt];
2164	((W)checks [active - 1])->active = active;	2434	ev_active (checks [active - 1]) = active;
2165	}	2435	}
2166		2436
2167	ev_stop (EV_A_ (W)w);	2437	ev_stop (EV_A_ (W)w);
2168	}	2438	}
2169		2439
2170	#if EV_EMBED_ENABLE	2440	#if EV_EMBED_ENABLE
2171	void noinline	2441	void noinline
2172	ev_embed_sweep (EV_P_ ev_embed *w)	2442	ev_embed_sweep (EV_P_ ev_embed *w)
2173	{	2443	{
2174	ev_loop (w->loop, EVLOOP_NONBLOCK);	2444	ev_loop (w->other, EVLOOP_NONBLOCK);
2175	}	2445	}
2176		2446
2177	static void	2447	static void
2178	embed_cb (EV_P_ ev_io *io, int revents)	2448	embed_io_cb (EV_P_ ev_io *io, int revents)
2179	{	2449	{
2180	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2450	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2181		2451
2182	if (ev_cb (w))	2452	if (ev_cb (w))
2183	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2453	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2184	else	2454	else
2185	ev_embed_sweep (loop, w);	2455	ev_loop (w->other, EVLOOP_NONBLOCK);
2186	}	2456	}
		2457
		2458	static void
		2459	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2460	{
		2461	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2462
		2463	{
		2464	struct ev_loop *loop = w->other;
		2465
		2466	while (fdchangecnt)
		2467	{
		2468	fd_reify (EV_A);
		2469	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2470	}
		2471	}
		2472	}
		2473
		2474	#if 0
		2475	static void
		2476	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2477	{
		2478	ev_idle_stop (EV_A_ idle);
		2479	}
		2480	#endif
2187		2481
2188	void	2482	void
2189	ev_embed_start (EV_P_ ev_embed *w)	2483	ev_embed_start (EV_P_ ev_embed *w)
2190	{	2484	{
2191	if (expect_false (ev_is_active (w)))	2485	if (expect_false (ev_is_active (w)))
2192	return;	2486	return;
2193		2487
2194	{	2488	{
2195	struct ev_loop *loop = w->loop;	2489	struct ev_loop *loop = w->other;
2196	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2490	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2197	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2491	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2198	}	2492	}
2199		2493
2200	ev_set_priority (&w->io, ev_priority (w));	2494	ev_set_priority (&w->io, ev_priority (w));
2201	ev_io_start (EV_A_ &w->io);	2495	ev_io_start (EV_A_ &w->io);
2202		2496
		2497	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2498	ev_set_priority (&w->prepare, EV_MINPRI);
		2499	ev_prepare_start (EV_A_ &w->prepare);
		2500
		2501	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2502
2203	ev_start (EV_A_ (W)w, 1);	2503	ev_start (EV_A_ (W)w, 1);
2204	}	2504	}
2205		2505
2206	void	2506	void
2207	ev_embed_stop (EV_P_ ev_embed *w)	2507	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2209	clear_pending (EV_A_ (W)w);	2509	clear_pending (EV_A_ (W)w);
2210	if (expect_false (!ev_is_active (w)))	2510	if (expect_false (!ev_is_active (w)))
2211	return;	2511	return;
2212		2512
2213	ev_io_stop (EV_A_ &w->io);	2513	ev_io_stop (EV_A_ &w->io);
		2514	ev_prepare_stop (EV_A_ &w->prepare);
2214		2515
2215	ev_stop (EV_A_ (W)w);	2516	ev_stop (EV_A_ (W)w);
2216	}	2517	}
2217	#endif	2518	#endif
2218		2519
…		…
2234	clear_pending (EV_A_ (W)w);	2535	clear_pending (EV_A_ (W)w);
2235	if (expect_false (!ev_is_active (w)))	2536	if (expect_false (!ev_is_active (w)))
2236	return;	2537	return;
2237		2538
2238	{	2539	{
2239	int active = ((W)w)->active;	2540	int active = ev_active (w);
		2541
2240	forks [active - 1] = forks [--forkcnt];	2542	forks [active - 1] = forks [--forkcnt];
2241	((W)forks [active - 1])->active = active;	2543	ev_active (forks [active - 1]) = active;
2242	}	2544	}
2243		2545
2244	ev_stop (EV_A_ (W)w);	2546	ev_stop (EV_A_ (W)w);
		2547	}
		2548	#endif
		2549
		2550	#if EV_ASYNC_ENABLE
		2551	void
		2552	ev_async_start (EV_P_ ev_async *w)
		2553	{
		2554	if (expect_false (ev_is_active (w)))
		2555	return;
		2556
		2557	evpipe_init (EV_A);
		2558
		2559	ev_start (EV_A_ (W)w, ++asynccnt);
		2560	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2561	asyncs [asynccnt - 1] = w;
		2562	}
		2563
		2564	void
		2565	ev_async_stop (EV_P_ ev_async *w)
		2566	{
		2567	clear_pending (EV_A_ (W)w);
		2568	if (expect_false (!ev_is_active (w)))
		2569	return;
		2570
		2571	{
		2572	int active = ev_active (w);
		2573
		2574	asyncs [active - 1] = asyncs [--asynccnt];
		2575	ev_active (asyncs [active - 1]) = active;
		2576	}
		2577
		2578	ev_stop (EV_A_ (W)w);
		2579	}
		2580
		2581	void
		2582	ev_async_send (EV_P_ ev_async *w)
		2583	{
		2584	w->sent = 1;
		2585	evpipe_write (EV_A_ &gotasync);
2245	}	2586	}
2246	#endif	2587	#endif
2247		2588
2248	/*****************************************************************************/	2589	/*****************************************************************************/
2249		2590
…		…
2307	ev_timer_set (&once->to, timeout, 0.);	2648	ev_timer_set (&once->to, timeout, 0.);
2308	ev_timer_start (EV_A_ &once->to);	2649	ev_timer_start (EV_A_ &once->to);
2309	}	2650	}
2310	}	2651	}
2311		2652
		2653	#if EV_MULTIPLICITY
		2654	#include "ev_wrap.h"
		2655	#endif
		2656
2312	#ifdef __cplusplus	2657	#ifdef __cplusplus
2313	}	2658	}
2314	#endif	2659	#endif
2315		2660

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Comparing libev/ev.c (file contents): Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC vs. Revision 1.230 by root, Fri May 2 08:13:16 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC vs.
Revision 1.230 by root, Fri May 2 08:13:16 2008 UTC