[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 1.224 by root, Wed Apr 9 22:07:50 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
…		…
293	perror (msg);	360	perror (msg);
294	abort ();	361	abort ();
295	}	362	}
296	}	363	}
297		364
		365	static void *
		366	ev_realloc_emul (void *ptr, long size)
		367	{
		368	/* some systems, notably openbsd and darwin, fail to properly
		369	* implement realloc (x, 0) (as required by both ansi c-98 and
		370	* the single unix specification, so work around them here.
		371	*/
		372
		373	if (size)
		374	return realloc (ptr, size);
		375
		376	free (ptr);
		377	return 0;
		378	}
		379
298	static void (alloc)(void *ptr, long size);	380	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
299		381
300	void	382	void
301	ev_set_allocator (void (cb)(void *ptr, long size))	383	ev_set_allocator (void (cb)(void *ptr, long size))
302	{	384	{
303	alloc = cb;	385	alloc = cb;
304	}	386	}
305		387
306	inline_speed void *	388	inline_speed void *
307	ev_realloc (void *ptr, long size)	389	ev_realloc (void *ptr, long size)
308	{	390	{
309	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	391	ptr = alloc (ptr, size);
310		392
311	if (!ptr && size)	393	if (!ptr && size)
312	{	394	{
313	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	395	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314	abort ();	396	abort ();
…		…
408	{	490	{
409	return ev_rt_now;	491	return ev_rt_now;
410	}	492	}
411	#endif	493	#endif
412		494
		495	void
		496	ev_sleep (ev_tstamp delay)
		497	{
		498	if (delay > 0.)
		499	{
		500	#if EV_USE_NANOSLEEP
		501	struct timespec ts;
		502
		503	ts.tv_sec = (time_t)delay;
		504	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		505
		506	nanosleep (&ts, 0);
		507	#elif defined(_WIN32)
		508	Sleep ((unsigned long)(delay * 1e3));
		509	#else
		510	struct timeval tv;
		511
		512	tv.tv_sec = (time_t)delay;
		513	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		514
		515	select (0, 0, 0, 0, &tv);
		516	#endif
		517	}
		518	}
		519
		520	/*****************************************************************************/
		521
413	int inline_size	522	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	523	array_nextsize (int elem, int cur, int cnt)
415	{	524	{
416	int ncur = cur + 1;	525	int ncur = cur + 1;
417		526
…		…
477	pendings [pri][w_->pending - 1].w = w_;	586	pendings [pri][w_->pending - 1].w = w_;
478	pendings [pri][w_->pending - 1].events = revents;	587	pendings [pri][w_->pending - 1].events = revents;
479	}	588	}
480	}	589	}
481		590
482	void inline_size	591	void inline_speed
483	queue_events (EV_P_ W *events, int eventcnt, int type)	592	queue_events (EV_P_ W *events, int eventcnt, int type)
484	{	593	{
485	int i;	594	int i;
486		595
487	for (i = 0; i < eventcnt; ++i)	596	for (i = 0; i < eventcnt; ++i)
…		…
534	{	643	{
535	int fd = fdchanges [i];	644	int fd = fdchanges [i];
536	ANFD *anfd = anfds + fd;	645	ANFD *anfd = anfds + fd;
537	ev_io *w;	646	ev_io *w;
538		647
539	int events = 0;	648	unsigned char events = 0;
540		649
541	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	650	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
542	events \|= w->events;	651	events \|= (unsigned char)w->events;
543		652
544	#if EV_SELECT_IS_WINSOCKET	653	#if EV_SELECT_IS_WINSOCKET
545	if (events)	654	if (events)
546	{	655	{
547	unsigned long argp;	656	unsigned long argp;
		657	#ifdef EV_FD_TO_WIN32_HANDLE
		658	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		659	#else
548	anfd->handle = _get_osfhandle (fd);	660	anfd->handle = _get_osfhandle (fd);
		661	#endif
549	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	662	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550	}	663	}
551	#endif	664	#endif
552		665
		666	{
		667	unsigned char o_events = anfd->events;
		668	unsigned char o_reify = anfd->reify;
		669
553	anfd->reify = 0;	670	anfd->reify = 0;
554
555	backend_modify (EV_A_ fd, anfd->events, events);
556	anfd->events = events;	671	anfd->events = events;
		672
		673	if (o_events != events \|\| o_reify & EV_IOFDSET)
		674	backend_modify (EV_A_ fd, o_events, events);
		675	}
557	}	676	}
558		677
559	fdchangecnt = 0;	678	fdchangecnt = 0;
560	}	679	}
561		680
562	void inline_size	681	void inline_size
563	fd_change (EV_P_ int fd)	682	fd_change (EV_P_ int fd, int flags)
564	{	683	{
565	if (expect_false (anfds [fd].reify))	684	unsigned char reify = anfds [fd].reify;
566	return;
567
568	anfds [fd].reify = 1;	685	anfds [fd].reify \|= flags;
569		686
		687	if (expect_true (!reify))
		688	{
570	++fdchangecnt;	689	++fdchangecnt;
571	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	690	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
572	fdchanges [fdchangecnt - 1] = fd;	691	fdchanges [fdchangecnt - 1] = fd;
		692	}
573	}	693	}
574		694
575	void inline_speed	695	void inline_speed
576	fd_kill (EV_P_ int fd)	696	fd_kill (EV_P_ int fd)
577	{	697	{
…		…
628		748
629	for (fd = 0; fd < anfdmax; ++fd)	749	for (fd = 0; fd < anfdmax; ++fd)
630	if (anfds [fd].events)	750	if (anfds [fd].events)
631	{	751	{
632	anfds [fd].events = 0;	752	anfds [fd].events = 0;
633	fd_change (EV_A_ fd);	753	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
634	}	754	}
635	}	755	}
636		756
637	/*****************************************************************************/	757	/*****************************************************************************/
638		758
639	void inline_speed	759	void inline_speed
640	upheap (WT *heap, int k)	760	upheap (WT *heap, int k)
641	{	761	{
642	WT w = heap [k];	762	WT w = heap [k];
643		763
644	while (k && heap [k >> 1]->at > w->at)	764	while (k)
645	{	765	{
		766	int p = (k - 1) >> 1;
		767
		768	if (heap [p]->at <= w->at)
		769	break;
		770
646	heap [k] = heap [k >> 1];	771	heap [k] = heap [p];
647	((W)heap [k])->active = k + 1;	772	((W)heap [k])->active = k + 1;
648	k >>= 1;	773	k = p;
649	}	774	}
650		775
651	heap [k] = w;	776	heap [k] = w;
652	((W)heap [k])->active = k + 1;	777	((W)heap [k])->active = k + 1;
653
654	}	778	}
655		779
656	void inline_speed	780	void inline_speed
657	downheap (WT *heap, int N, int k)	781	downheap (WT *heap, int N, int k)
658	{	782	{
659	WT w = heap [k];	783	WT w = heap [k];
660		784
661	while (k < (N >> 1))	785	for (;;)
662	{	786	{
663	int j = k << 1;	787	int c = (k << 1) + 1;
664		788
665	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	789	if (c >= N)
666	++j;
667
668	if (w->at <= heap [j]->at)
669	break;	790	break;
670		791
		792	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		793	? 1 : 0;
		794
		795	if (w->at <= heap [c]->at)
		796	break;
		797
671	heap [k] = heap [j];	798	heap [k] = heap [c];
672	((W)heap [k])->active = k + 1;	799	((W)heap [k])->active = k + 1;
		800
673	k = j;	801	k = c;
674	}	802	}
675		803
676	heap [k] = w;	804	heap [k] = w;
677	((W)heap [k])->active = k + 1;	805	((W)heap [k])->active = k + 1;
678	}	806	}
…		…
687	/*****************************************************************************/	815	/*****************************************************************************/
688		816
689	typedef struct	817	typedef struct
690	{	818	{
691	WL head;	819	WL head;
692	sig_atomic_t volatile gotsig;	820	EV_ATOMIC_T gotsig;
693	} ANSIG;	821	} ANSIG;
694		822
695	static ANSIG *signals;	823	static ANSIG *signals;
696	static int signalmax;	824	static int signalmax;
697		825
698	static int sigpipe [2];	826	static EV_ATOMIC_T gotsig;
699	static sig_atomic_t volatile gotsig;
700	static ev_io sigev;
701		827
702	void inline_size	828	void inline_size
703	signals_init (ANSIG *base, int count)	829	signals_init (ANSIG *base, int count)
704	{	830	{
705	while (count--)	831	while (count--)
…		…
709		835
710	++base;	836	++base;
711	}	837	}
712	}	838	}
713		839
714	static void	840	/*****************************************************************************/
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		841
765	void inline_speed	842	void inline_speed
766	fd_intern (int fd)	843	fd_intern (int fd)
767	{	844	{
768	#ifdef _WIN32	845	#ifdef _WIN32
…		…
773	fcntl (fd, F_SETFL, O_NONBLOCK);	850	fcntl (fd, F_SETFL, O_NONBLOCK);
774	#endif	851	#endif
775	}	852	}
776		853
777	static void noinline	854	static void noinline
778	siginit (EV_P)	855	evpipe_init (EV_P)
779	{	856	{
		857	if (!ev_is_active (&pipeev))
		858	{
		859	#if EV_USE_EVENTFD
		860	if ((evfd = eventfd (0, 0)) >= 0)
		861	{
		862	evpipe [0] = -1;
		863	fd_intern (evfd);
		864	ev_io_set (&pipeev, evfd, EV_READ);
		865	}
		866	else
		867	#endif
		868	{
		869	while (pipe (evpipe))
		870	syserr ("(libev) error creating signal/async pipe");
		871
780	fd_intern (sigpipe [0]);	872	fd_intern (evpipe [0]);
781	fd_intern (sigpipe [1]);	873	fd_intern (evpipe [1]);
		874	ev_io_set (&pipeev, evpipe [0], EV_READ);
		875	}
782		876
783	ev_io_set (&sigev, sigpipe [0], EV_READ);
784	ev_io_start (EV_A_ &sigev);	877	ev_io_start (EV_A_ &pipeev);
785	ev_unref (EV_A); /* child watcher should not keep loop alive */	878	ev_unref (EV_A); /* watcher should not keep loop alive */
		879	}
		880	}
		881
		882	void inline_size
		883	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		884	{
		885	if (!*flag)
		886	{
		887	int old_errno = errno; /* save errno because write might clobber it */
		888
		889	*flag = 1;
		890
		891	#if EV_USE_EVENTFD
		892	if (evfd >= 0)
		893	{
		894	uint64_t counter = 1;
		895	write (evfd, &counter, sizeof (uint64_t));
		896	}
		897	else
		898	#endif
		899	write (evpipe [1], &old_errno, 1);
		900
		901	errno = old_errno;
		902	}
		903	}
		904
		905	static void
		906	pipecb (EV_P_ ev_io *iow, int revents)
		907	{
		908	#if EV_USE_EVENTFD
		909	if (evfd >= 0)
		910	{
		911	uint64_t counter = 1;
		912	read (evfd, &counter, sizeof (uint64_t));
		913	}
		914	else
		915	#endif
		916	{
		917	char dummy;
		918	read (evpipe [0], &dummy, 1);
		919	}
		920
		921	if (gotsig && ev_is_default_loop (EV_A))
		922	{
		923	int signum;
		924	gotsig = 0;
		925
		926	for (signum = signalmax; signum--; )
		927	if (signals [signum].gotsig)
		928	ev_feed_signal_event (EV_A_ signum + 1);
		929	}
		930
		931	#if EV_ASYNC_ENABLE
		932	if (gotasync)
		933	{
		934	int i;
		935	gotasync = 0;
		936
		937	for (i = asynccnt; i--; )
		938	if (asyncs [i]->sent)
		939	{
		940	asyncs [i]->sent = 0;
		941	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		942	}
		943	}
		944	#endif
786	}	945	}
787		946
788	/*****************************************************************************/	947	/*****************************************************************************/
789		948
		949	static void
		950	ev_sighandler (int signum)
		951	{
		952	#if EV_MULTIPLICITY
		953	struct ev_loop *loop = &default_loop_struct;
		954	#endif
		955
		956	#if _WIN32
		957	signal (signum, ev_sighandler);
		958	#endif
		959
		960	signals [signum - 1].gotsig = 1;
		961	evpipe_write (EV_A_ &gotsig);
		962	}
		963
		964	void noinline
		965	ev_feed_signal_event (EV_P_ int signum)
		966	{
		967	WL w;
		968
		969	#if EV_MULTIPLICITY
		970	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		971	#endif
		972
		973	--signum;
		974
		975	if (signum < 0 \|\| signum >= signalmax)
		976	return;
		977
		978	signals [signum].gotsig = 0;
		979
		980	for (w = signals [signum].head; w; w = w->next)
		981	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		982	}
		983
		984	/*****************************************************************************/
		985
790	static ev_child *childs [EV_PID_HASHSIZE];	986	static WL childs [EV_PID_HASHSIZE];
791		987
792	#ifndef _WIN32	988	#ifndef _WIN32
793		989
794	static ev_signal childev;	990	static ev_signal childev;
795		991
		992	#ifndef WIFCONTINUED
		993	# define WIFCONTINUED(status) 0
		994	#endif
		995
796	void inline_speed	996	void inline_speed
797	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	997	child_reap (EV_P_ int chain, int pid, int status)
798	{	998	{
799	ev_child *w;	999	ev_child *w;
		1000	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
800		1001
801	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1002	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1003	{
802	if (w->pid == pid \|\| !w->pid)	1004	if ((w->pid == pid \|\| !w->pid)
		1005	&& (!traced \|\| (w->flags & 1)))
803	{	1006	{
804	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	1007	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;	1008	w->rpid = pid;
806	w->rstatus = status;	1009	w->rstatus = status;
807	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1010	ev_feed_event (EV_A_ (W)w, EV_CHILD);
808	}	1011	}
		1012	}
809	}	1013	}
810		1014
811	#ifndef WCONTINUED	1015	#ifndef WCONTINUED
812	# define WCONTINUED 0	1016	# define WCONTINUED 0
813	#endif	1017	#endif
…		…
822	if (!WCONTINUED	1026	if (!WCONTINUED
823	\|\| errno != EINVAL	1027	\|\| errno != EINVAL
824	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1028	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
825	return;	1029	return;
826		1030
827	/* make sure we are called again until all childs have been reaped */	1031	/* 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 */	1032	/* 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);	1033	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
830		1034
831	child_reap (EV_A_ sw, pid, pid, status);	1035	child_reap (EV_A_ pid, pid, status);
832	if (EV_PID_HASHSIZE > 1)	1036	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 */	1037	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
834	}	1038	}
835		1039
836	#endif	1040	#endif
837		1041
838	/*****************************************************************************/	1042	/*****************************************************************************/
…		…
910	}	1114	}
911		1115
912	unsigned int	1116	unsigned int
913	ev_embeddable_backends (void)	1117	ev_embeddable_backends (void)
914	{	1118	{
915	return EVBACKEND_EPOLL	1119	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
916	\| EVBACKEND_KQUEUE	1120
917	\| EVBACKEND_PORT;	1121	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1122	/* please fix it and tell me how to detect the fix */
		1123	flags &= ~EVBACKEND_EPOLL;
		1124
		1125	return flags;
918	}	1126	}
919		1127
920	unsigned int	1128	unsigned int
921	ev_backend (EV_P)	1129	ev_backend (EV_P)
922	{	1130	{
…		…
925		1133
926	unsigned int	1134	unsigned int
927	ev_loop_count (EV_P)	1135	ev_loop_count (EV_P)
928	{	1136	{
929	return loop_count;	1137	return loop_count;
		1138	}
		1139
		1140	void
		1141	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1142	{
		1143	io_blocktime = interval;
		1144	}
		1145
		1146	void
		1147	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1148	{
		1149	timeout_blocktime = interval;
930	}	1150	}
931		1151
932	static void noinline	1152	static void noinline
933	loop_init (EV_P_ unsigned int flags)	1153	loop_init (EV_P_ unsigned int flags)
934	{	1154	{
…		…
940	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1160	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
941	have_monotonic = 1;	1161	have_monotonic = 1;
942	}	1162	}
943	#endif	1163	#endif
944		1164
945	ev_rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
946	mn_now = get_clock ();	1166	mn_now = get_clock ();
947	now_floor = mn_now;	1167	now_floor = mn_now;
948	rtmn_diff = ev_rt_now - mn_now;	1168	rtmn_diff = ev_rt_now - mn_now;
		1169
		1170	io_blocktime = 0.;
		1171	timeout_blocktime = 0.;
		1172	backend = 0;
		1173	backend_fd = -1;
		1174	gotasync = 0;
		1175	#if EV_USE_INOTIFY
		1176	fs_fd = -2;
		1177	#endif
949		1178
950	/* pid check not overridable via env */	1179	/* pid check not overridable via env */
951	#ifndef _WIN32	1180	#ifndef _WIN32
952	if (flags & EVFLAG_FORKCHECK)	1181	if (flags & EVFLAG_FORKCHECK)
953	curpid = getpid ();	1182	curpid = getpid ();
…		…
959	flags = atoi (getenv ("LIBEV_FLAGS"));	1188	flags = atoi (getenv ("LIBEV_FLAGS"));
960		1189
961	if (!(flags & 0x0000ffffUL))	1190	if (!(flags & 0x0000ffffUL))
962	flags \|= ev_recommended_backends ();	1191	flags \|= ev_recommended_backends ();
963		1192
964	backend = 0;
965	backend_fd = -1;
966	#if EV_USE_INOTIFY
967	fs_fd = -2;
968	#endif
969
970	#if EV_USE_PORT	1193	#if EV_USE_PORT
971	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1194	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
972	#endif	1195	#endif
973	#if EV_USE_KQUEUE	1196	#if EV_USE_KQUEUE
974	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1197	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
981	#endif	1204	#endif
982	#if EV_USE_SELECT	1205	#if EV_USE_SELECT
983	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1206	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
984	#endif	1207	#endif
985		1208
986	ev_init (&sigev, sigcb);	1209	ev_init (&pipeev, pipecb);
987	ev_set_priority (&sigev, EV_MAXPRI);	1210	ev_set_priority (&pipeev, EV_MAXPRI);
988	}	1211	}
989	}	1212	}
990		1213
991	static void noinline	1214	static void noinline
992	loop_destroy (EV_P)	1215	loop_destroy (EV_P)
993	{	1216	{
994	int i;	1217	int i;
		1218
		1219	if (ev_is_active (&pipeev))
		1220	{
		1221	ev_ref (EV_A); /* signal watcher */
		1222	ev_io_stop (EV_A_ &pipeev);
		1223
		1224	#if EV_USE_EVENTFD
		1225	if (evfd >= 0)
		1226	close (evfd);
		1227	#endif
		1228
		1229	if (evpipe [0] >= 0)
		1230	{
		1231	close (evpipe [0]);
		1232	close (evpipe [1]);
		1233	}
		1234	}
995		1235
996	#if EV_USE_INOTIFY	1236	#if EV_USE_INOTIFY
997	if (fs_fd >= 0)	1237	if (fs_fd >= 0)
998	close (fs_fd);	1238	close (fs_fd);
999	#endif	1239	#endif
…		…
1022	array_free (pending, [i]);	1262	array_free (pending, [i]);
1023	#if EV_IDLE_ENABLE	1263	#if EV_IDLE_ENABLE
1024	array_free (idle, [i]);	1264	array_free (idle, [i]);
1025	#endif	1265	#endif
1026	}	1266	}
		1267
		1268	ev_free (anfds); anfdmax = 0;
1027		1269
1028	/* have to use the microsoft-never-gets-it-right macro */	1270	/* have to use the microsoft-never-gets-it-right macro */
1029	array_free (fdchange, EMPTY);	1271	array_free (fdchange, EMPTY);
1030	array_free (timer, EMPTY);	1272	array_free (timer, EMPTY);
1031	#if EV_PERIODIC_ENABLE	1273	#if EV_PERIODIC_ENABLE
1032	array_free (periodic, EMPTY);	1274	array_free (periodic, EMPTY);
1033	#endif	1275	#endif
		1276	#if EV_FORK_ENABLE
		1277	array_free (fork, EMPTY);
		1278	#endif
1034	array_free (prepare, EMPTY);	1279	array_free (prepare, EMPTY);
1035	array_free (check, EMPTY);	1280	array_free (check, EMPTY);
		1281	#if EV_ASYNC_ENABLE
		1282	array_free (async, EMPTY);
		1283	#endif
1036		1284
1037	backend = 0;	1285	backend = 0;
1038	}	1286	}
1039		1287
1040	void inline_size infy_fork (EV_P);	1288	void inline_size infy_fork (EV_P);
…		…
1053	#endif	1301	#endif
1054	#if EV_USE_INOTIFY	1302	#if EV_USE_INOTIFY
1055	infy_fork (EV_A);	1303	infy_fork (EV_A);
1056	#endif	1304	#endif
1057		1305
1058	if (ev_is_active (&sigev))	1306	if (ev_is_active (&pipeev))
1059	{	1307	{
1060	/* default loop */	1308	/* this "locks" the handlers against writing to the pipe */
		1309	/* while we modify the fd vars */
		1310	gotsig = 1;
		1311	#if EV_ASYNC_ENABLE
		1312	gotasync = 1;
		1313	#endif
1061		1314
1062	ev_ref (EV_A);	1315	ev_ref (EV_A);
1063	ev_io_stop (EV_A_ &sigev);	1316	ev_io_stop (EV_A_ &pipeev);
		1317
		1318	#if EV_USE_EVENTFD
		1319	if (evfd >= 0)
		1320	close (evfd);
		1321	#endif
		1322
		1323	if (evpipe [0] >= 0)
		1324	{
1064	close (sigpipe [0]);	1325	close (evpipe [0]);
1065	close (sigpipe [1]);	1326	close (evpipe [1]);
		1327	}
1066		1328
1067	while (pipe (sigpipe))
1068	syserr ("(libev) error creating pipe");
1069
1070	siginit (EV_A);	1329	evpipe_init (EV_A);
		1330	/* now iterate over everything, in case we missed something */
		1331	pipecb (EV_A_ &pipeev, EV_READ);
1071	}	1332	}
1072		1333
1073	postfork = 0;	1334	postfork = 0;
1074	}	1335	}
1075		1336
…		…
1097	}	1358	}
1098		1359
1099	void	1360	void
1100	ev_loop_fork (EV_P)	1361	ev_loop_fork (EV_P)
1101	{	1362	{
1102	postfork = 1;	1363	postfork = 1; /* must be in line with ev_default_fork */
1103	}	1364	}
1104		1365
1105	#endif	1366	#endif
1106		1367
1107	#if EV_MULTIPLICITY	1368	#if EV_MULTIPLICITY
…		…
1110	#else	1371	#else
1111	int	1372	int
1112	ev_default_loop (unsigned int flags)	1373	ev_default_loop (unsigned int flags)
1113	#endif	1374	#endif
1114	{	1375	{
1115	if (sigpipe [0] == sigpipe [1])
1116	if (pipe (sigpipe))
1117	return 0;
1118
1119	if (!ev_default_loop_ptr)	1376	if (!ev_default_loop_ptr)
1120	{	1377	{
1121	#if EV_MULTIPLICITY	1378	#if EV_MULTIPLICITY
1122	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1379	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1123	#else	1380	#else
…		…
1126		1383
1127	loop_init (EV_A_ flags);	1384	loop_init (EV_A_ flags);
1128		1385
1129	if (ev_backend (EV_A))	1386	if (ev_backend (EV_A))
1130	{	1387	{
1131	siginit (EV_A);
1132
1133	#ifndef _WIN32	1388	#ifndef _WIN32
1134	ev_signal_init (&childev, childcb, SIGCHLD);	1389	ev_signal_init (&childev, childcb, SIGCHLD);
1135	ev_set_priority (&childev, EV_MAXPRI);	1390	ev_set_priority (&childev, EV_MAXPRI);
1136	ev_signal_start (EV_A_ &childev);	1391	ev_signal_start (EV_A_ &childev);
1137	ev_unref (EV_A); /* child watcher should not keep loop alive */	1392	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1154	#ifndef _WIN32	1409	#ifndef _WIN32
1155	ev_ref (EV_A); /* child watcher */	1410	ev_ref (EV_A); /* child watcher */
1156	ev_signal_stop (EV_A_ &childev);	1411	ev_signal_stop (EV_A_ &childev);
1157	#endif	1412	#endif
1158		1413
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);	1414	loop_destroy (EV_A);
1166	}	1415	}
1167		1416
1168	void	1417	void
1169	ev_default_fork (void)	1418	ev_default_fork (void)
…		…
1171	#if EV_MULTIPLICITY	1420	#if EV_MULTIPLICITY
1172	struct ev_loop *loop = ev_default_loop_ptr;	1421	struct ev_loop *loop = ev_default_loop_ptr;
1173	#endif	1422	#endif
1174		1423
1175	if (backend)	1424	if (backend)
1176	postfork = 1;	1425	postfork = 1; /* must be in line with ev_loop_fork */
1177	}	1426	}
1178		1427
1179	/*****************************************************************************/	1428	/*****************************************************************************/
1180		1429
1181	void	1430	void
…		…
1207	void inline_size	1456	void inline_size
1208	timers_reify (EV_P)	1457	timers_reify (EV_P)
1209	{	1458	{
1210	while (timercnt && ((WT)timers [0])->at <= mn_now)	1459	while (timercnt && ((WT)timers [0])->at <= mn_now)
1211	{	1460	{
1212	ev_timer *w = timers [0];	1461	ev_timer w = (ev_timer )timers [0];
1213		1462
1214	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1463	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1215		1464
1216	/* first reschedule or stop timer */	1465	/* first reschedule or stop timer */
1217	if (w->repeat)	1466	if (w->repeat)
…		…
1220		1469
1221	((WT)w)->at += w->repeat;	1470	((WT)w)->at += w->repeat;
1222	if (((WT)w)->at < mn_now)	1471	if (((WT)w)->at < mn_now)
1223	((WT)w)->at = mn_now;	1472	((WT)w)->at = mn_now;
1224		1473
1225	downheap ((WT *)timers, timercnt, 0);	1474	downheap (timers, timercnt, 0);
1226	}	1475	}
1227	else	1476	else
1228	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1477	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1229		1478
1230	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1479	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1235	void inline_size	1484	void inline_size
1236	periodics_reify (EV_P)	1485	periodics_reify (EV_P)
1237	{	1486	{
1238	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1487	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1239	{	1488	{
1240	ev_periodic *w = periodics [0];	1489	ev_periodic w = (ev_periodic )periodics [0];
1241		1490
1242	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1491	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1243		1492
1244	/* first reschedule or stop timer */	1493	/* first reschedule or stop timer */
1245	if (w->reschedule_cb)	1494	if (w->reschedule_cb)
1246	{	1495	{
1247	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1496	((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));	1497	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1249	downheap ((WT *)periodics, periodiccnt, 0);	1498	downheap (periodics, periodiccnt, 0);
1250	}	1499	}
1251	else if (w->interval)	1500	else if (w->interval)
1252	{	1501	{
1253	((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval;	1502	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1503	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));	1504	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);	1505	downheap (periodics, periodiccnt, 0);
1256	}	1506	}
1257	else	1507	else
1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1508	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259		1509
1260	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1510	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1267	int i;	1517	int i;
1268		1518
1269	/* adjust periodics after time jump */	1519	/* adjust periodics after time jump */
1270	for (i = 0; i < periodiccnt; ++i)	1520	for (i = 0; i < periodiccnt; ++i)
1271	{	1521	{
1272	ev_periodic *w = periodics [i];	1522	ev_periodic w = (ev_periodic )periodics [i];
1273		1523
1274	if (w->reschedule_cb)	1524	if (w->reschedule_cb)
1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1525	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276	else if (w->interval)	1526	else if (w->interval)
1277	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1527	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278	}	1528	}
1279		1529
1280	/* now rebuild the heap */	1530	/* now rebuild the heap */
1281	for (i = periodiccnt >> 1; i--; )	1531	for (i = periodiccnt >> 1; i--; )
1282	downheap ((WT *)periodics, periodiccnt, i);	1532	downheap (periodics, periodiccnt, i);
1283	}	1533	}
1284	#endif	1534	#endif
1285		1535
1286	#if EV_IDLE_ENABLE	1536	#if EV_IDLE_ENABLE
1287	void inline_size	1537	void inline_size
…		…
1304	}	1554	}
1305	}	1555	}
1306	}	1556	}
1307	#endif	1557	#endif
1308		1558
1309	int inline_size	1559	void inline_speed
1310	time_update_monotonic (EV_P)	1560	time_update (EV_P_ ev_tstamp max_block)
1311	{	1561	{
		1562	int i;
		1563
		1564	#if EV_USE_MONOTONIC
		1565	if (expect_true (have_monotonic))
		1566	{
		1567	ev_tstamp odiff = rtmn_diff;
		1568
1312	mn_now = get_clock ();	1569	mn_now = get_clock ();
1313		1570
		1571	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1572	/* interpolate in the meantime */
1314	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1573	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315	{	1574	{
1316	ev_rt_now = rtmn_diff + mn_now;	1575	ev_rt_now = rtmn_diff + mn_now;
1317	return 0;	1576	return;
1318	}	1577	}
1319	else	1578
1320	{
1321	now_floor = mn_now;	1579	now_floor = mn_now;
1322	ev_rt_now = ev_time ();	1580	ev_rt_now = ev_time ();
1323	return 1;
1324	}
1325	}
1326		1581
1327	void inline_size	1582	/* loop a few times, before making important decisions.
1328	time_update (EV_P)	1583	* on the choice of "4": one iteration isn't enough,
1329	{	1584	* in case we get preempted during the calls to
1330	int i;	1585	* ev_time and get_clock. a second call is almost guaranteed
1331		1586	* to succeed in that case, though. and looping a few more times
1332	#if EV_USE_MONOTONIC	1587	* doesn't hurt either as we only do this on time-jumps or
1333	if (expect_true (have_monotonic))	1588	* in the unlikely event of having been preempted here.
1334	{	1589	*/
1335	if (time_update_monotonic (EV_A))	1590	for (i = 4; --i; )
1336	{	1591	{
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;	1592	rtmn_diff = ev_rt_now - mn_now;
1350		1593
1351	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1594	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1352	return; /* all is well */	1595	return; /* all is well */
1353		1596
1354	ev_rt_now = ev_time ();	1597	ev_rt_now = ev_time ();
1355	mn_now = get_clock ();	1598	mn_now = get_clock ();
1356	now_floor = mn_now;	1599	now_floor = mn_now;
1357	}	1600	}
1358		1601
1359	# if EV_PERIODIC_ENABLE	1602	# if EV_PERIODIC_ENABLE
1360	periodics_reschedule (EV_A);	1603	periodics_reschedule (EV_A);
1361	# endif	1604	# endif
1362	/* no timer adjustment, as the monotonic clock doesn't jump */	1605	/* no timer adjustment, as the monotonic clock doesn't jump */
1363	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1606	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364	}
1365	}	1607	}
1366	else	1608	else
1367	#endif	1609	#endif
1368	{	1610	{
1369	ev_rt_now = ev_time ();	1611	ev_rt_now = ev_time ();
1370		1612
1371	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1613	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372	{	1614	{
1373	#if EV_PERIODIC_ENABLE	1615	#if EV_PERIODIC_ENABLE
1374	periodics_reschedule (EV_A);	1616	periodics_reschedule (EV_A);
1375	#endif	1617	#endif
1376
1377	/* adjust timers. this is easy, as the offset is the same for all of them */	1618	/* adjust timers. this is easy, as the offset is the same for all of them */
1378	for (i = 0; i < timercnt; ++i)	1619	for (i = 0; i < timercnt; ++i)
1379	((WT)timers [i])->at += ev_rt_now - mn_now;	1620	((WT)timers [i])->at += ev_rt_now - mn_now;
1380	}	1621	}
1381		1622
…		…
1398	static int loop_done;	1639	static int loop_done;
1399		1640
1400	void	1641	void
1401	ev_loop (EV_P_ int flags)	1642	ev_loop (EV_P_ int flags)
1402	{	1643	{
1403	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1644	loop_done = EVUNLOOP_CANCEL;
1404	? EVUNLOOP_ONE
1405	: EVUNLOOP_CANCEL;
1406		1645
1407	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1646	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1408		1647
1409	do	1648	do
1410	{	1649	{
…		…
1444	/* update fd-related kernel structures */	1683	/* update fd-related kernel structures */
1445	fd_reify (EV_A);	1684	fd_reify (EV_A);
1446		1685
1447	/* calculate blocking time */	1686	/* calculate blocking time */
1448	{	1687	{
1449	ev_tstamp block;	1688	ev_tstamp waittime = 0.;
		1689	ev_tstamp sleeptime = 0.;
1450		1690
1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1691	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1452	block = 0.; /* do not block at all */
1453	else
1454	{	1692	{
1455	/* update time to cancel out callback processing overhead */	1693	/* 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);	1694	time_update (EV_A_ 1e100);
1459	else
1460	#endif
1461	{
1462	ev_rt_now = ev_time ();
1463	mn_now = ev_rt_now;
1464	}
1465		1695
1466	block = MAX_BLOCKTIME;	1696	waittime = MAX_BLOCKTIME;
1467		1697
1468	if (timercnt)	1698	if (timercnt)
1469	{	1699	{
1470	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1700	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1471	if (block > to) block = to;	1701	if (waittime > to) waittime = to;
1472	}	1702	}
1473		1703
1474	#if EV_PERIODIC_ENABLE	1704	#if EV_PERIODIC_ENABLE
1475	if (periodiccnt)	1705	if (periodiccnt)
1476	{	1706	{
1477	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1707	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1478	if (block > to) block = to;	1708	if (waittime > to) waittime = to;
1479	}	1709	}
1480	#endif	1710	#endif
1481		1711
1482	if (expect_false (block < 0.)) block = 0.;	1712	if (expect_false (waittime < timeout_blocktime))
		1713	waittime = timeout_blocktime;
		1714
		1715	sleeptime = waittime - backend_fudge;
		1716
		1717	if (expect_true (sleeptime > io_blocktime))
		1718	sleeptime = io_blocktime;
		1719
		1720	if (sleeptime)
		1721	{
		1722	ev_sleep (sleeptime);
		1723	waittime -= sleeptime;
		1724	}
1483	}	1725	}
1484		1726
1485	++loop_count;	1727	++loop_count;
1486	backend_poll (EV_A_ block);	1728	backend_poll (EV_A_ waittime);
		1729
		1730	/* update ev_rt_now, do magic */
		1731	time_update (EV_A_ waittime + sleeptime);
1487	}	1732	}
1488
1489	/* update ev_rt_now, do magic */
1490	time_update (EV_A);
1491		1733
1492	/* queue pending timers and reschedule them */	1734	/* queue pending timers and reschedule them */
1493	timers_reify (EV_A); /* relative timers called last */	1735	timers_reify (EV_A); /* relative timers called last */
1494	#if EV_PERIODIC_ENABLE	1736	#if EV_PERIODIC_ENABLE
1495	periodics_reify (EV_A); /* absolute timers called first */	1737	periodics_reify (EV_A); /* absolute timers called first */
…		…
1503	/* queue check watchers, to be executed first */	1745	/* queue check watchers, to be executed first */
1504	if (expect_false (checkcnt))	1746	if (expect_false (checkcnt))
1505	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1747	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1506		1748
1507	call_pending (EV_A);	1749	call_pending (EV_A);
1508
1509	}	1750	}
1510	while (expect_true (activecnt && !loop_done));	1751	while (expect_true (
		1752	activecnt
		1753	&& !loop_done
		1754	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1755	));
1511		1756
1512	if (loop_done == EVUNLOOP_ONE)	1757	if (loop_done == EVUNLOOP_ONE)
1513	loop_done = EVUNLOOP_CANCEL;	1758	loop_done = EVUNLOOP_CANCEL;
1514	}	1759	}
1515		1760
…		…
1606		1851
1607	assert (("ev_io_start called with negative fd", fd >= 0));	1852	assert (("ev_io_start called with negative fd", fd >= 0));
1608		1853
1609	ev_start (EV_A_ (W)w, 1);	1854	ev_start (EV_A_ (W)w, 1);
1610	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1855	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1611	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1856	wlist_add (&anfds[fd].head, (WL)w);
1612		1857
1613	fd_change (EV_A_ fd);	1858	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1859	w->events &= ~EV_IOFDSET;
1614	}	1860	}
1615		1861
1616	void noinline	1862	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	1863	ev_io_stop (EV_P_ ev_io *w)
1618	{	1864	{
…		…
1620	if (expect_false (!ev_is_active (w)))	1866	if (expect_false (!ev_is_active (w)))
1621	return;	1867	return;
1622		1868
1623	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1869	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624		1870
1625	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1871	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	1872	ev_stop (EV_A_ (W)w);
1627		1873
1628	fd_change (EV_A_ w->fd);	1874	fd_change (EV_A_ w->fd, 1);
1629	}	1875	}
1630		1876
1631	void noinline	1877	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	1878	ev_timer_start (EV_P_ ev_timer *w)
1633	{	1879	{
…		…
1637	((WT)w)->at += mn_now;	1883	((WT)w)->at += mn_now;
1638		1884
1639	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1885	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640		1886
1641	ev_start (EV_A_ (W)w, ++timercnt);	1887	ev_start (EV_A_ (W)w, ++timercnt);
1642	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1888	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1643	timers [timercnt - 1] = w;	1889	timers [timercnt - 1] = (WT)w;
1644	upheap ((WT *)timers, timercnt - 1);	1890	upheap (timers, timercnt - 1);
1645		1891
1646	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1892	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1647	}	1893	}
1648		1894
1649	void noinline	1895	void noinline
…		…
1651	{	1897	{
1652	clear_pending (EV_A_ (W)w);	1898	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	1899	if (expect_false (!ev_is_active (w)))
1654	return;	1900	return;
1655		1901
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1902	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1657		1903
1658	{	1904	{
1659	int active = ((W)w)->active;	1905	int active = ((W)w)->active;
1660		1906
1661	if (expect_true (--active < --timercnt))	1907	if (expect_true (--active < --timercnt))
1662	{	1908	{
1663	timers [active] = timers [timercnt];	1909	timers [active] = timers [timercnt];
1664	adjustheap ((WT *)timers, timercnt, active);	1910	adjustheap (timers, timercnt, active);
1665	}	1911	}
1666	}	1912	}
1667		1913
1668	((WT)w)->at -= mn_now;	1914	((WT)w)->at -= mn_now;
1669		1915
…		…
1676	if (ev_is_active (w))	1922	if (ev_is_active (w))
1677	{	1923	{
1678	if (w->repeat)	1924	if (w->repeat)
1679	{	1925	{
1680	((WT)w)->at = mn_now + w->repeat;	1926	((WT)w)->at = mn_now + w->repeat;
1681	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1927	adjustheap (timers, timercnt, ((W)w)->active - 1);
1682	}	1928	}
1683	else	1929	else
1684	ev_timer_stop (EV_A_ w);	1930	ev_timer_stop (EV_A_ w);
1685	}	1931	}
1686	else if (w->repeat)	1932	else if (w->repeat)
…		…
1707	}	1953	}
1708	else	1954	else
1709	((WT)w)->at = w->offset;	1955	((WT)w)->at = w->offset;
1710		1956
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	1957	ev_start (EV_A_ (W)w, ++periodiccnt);
1712	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1958	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1713	periodics [periodiccnt - 1] = w;	1959	periodics [periodiccnt - 1] = (WT)w;
1714	upheap ((WT *)periodics, periodiccnt - 1);	1960	upheap (periodics, periodiccnt - 1);
1715		1961
1716	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1962	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1717	}	1963	}
1718		1964
1719	void noinline	1965	void noinline
…		…
1721	{	1967	{
1722	clear_pending (EV_A_ (W)w);	1968	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	1969	if (expect_false (!ev_is_active (w)))
1724	return;	1970	return;
1725		1971
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1972	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1727		1973
1728	{	1974	{
1729	int active = ((W)w)->active;	1975	int active = ((W)w)->active;
1730		1976
1731	if (expect_true (--active < --periodiccnt))	1977	if (expect_true (--active < --periodiccnt))
1732	{	1978	{
1733	periodics [active] = periodics [periodiccnt];	1979	periodics [active] = periodics [periodiccnt];
1734	adjustheap ((WT *)periodics, periodiccnt, active);	1980	adjustheap (periodics, periodiccnt, active);
1735	}	1981	}
1736	}	1982	}
1737		1983
1738	ev_stop (EV_A_ (W)w);	1984	ev_stop (EV_A_ (W)w);
1739	}	1985	}
…		…
1760	if (expect_false (ev_is_active (w)))	2006	if (expect_false (ev_is_active (w)))
1761	return;	2007	return;
1762		2008
1763	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2009	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1764		2010
		2011	evpipe_init (EV_A);
		2012
		2013	{
		2014	#ifndef _WIN32
		2015	sigset_t full, prev;
		2016	sigfillset (&full);
		2017	sigprocmask (SIG_SETMASK, &full, &prev);
		2018	#endif
		2019
		2020	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2021
		2022	#ifndef _WIN32
		2023	sigprocmask (SIG_SETMASK, &prev, 0);
		2024	#endif
		2025	}
		2026
1765	ev_start (EV_A_ (W)w, 1);	2027	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);	2028	wlist_add (&signals [w->signum - 1].head, (WL)w);
1768		2029
1769	if (!((WL)w)->next)	2030	if (!((WL)w)->next)
1770	{	2031	{
1771	#if _WIN32	2032	#if _WIN32
1772	signal (w->signum, sighandler);	2033	signal (w->signum, ev_sighandler);
1773	#else	2034	#else
1774	struct sigaction sa;	2035	struct sigaction sa;
1775	sa.sa_handler = sighandler;	2036	sa.sa_handler = ev_sighandler;
1776	sigfillset (&sa.sa_mask);	2037	sigfillset (&sa.sa_mask);
1777	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2038	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1778	sigaction (w->signum, &sa, 0);	2039	sigaction (w->signum, &sa, 0);
1779	#endif	2040	#endif
1780	}	2041	}
…		…
1785	{	2046	{
1786	clear_pending (EV_A_ (W)w);	2047	clear_pending (EV_A_ (W)w);
1787	if (expect_false (!ev_is_active (w)))	2048	if (expect_false (!ev_is_active (w)))
1788	return;	2049	return;
1789		2050
1790	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2051	wlist_del (&signals [w->signum - 1].head, (WL)w);
1791	ev_stop (EV_A_ (W)w);	2052	ev_stop (EV_A_ (W)w);
1792		2053
1793	if (!signals [w->signum - 1].head)	2054	if (!signals [w->signum - 1].head)
1794	signal (w->signum, SIG_DFL);	2055	signal (w->signum, SIG_DFL);
1795	}	2056	}
…		…
1802	#endif	2063	#endif
1803	if (expect_false (ev_is_active (w)))	2064	if (expect_false (ev_is_active (w)))
1804	return;	2065	return;
1805		2066
1806	ev_start (EV_A_ (W)w, 1);	2067	ev_start (EV_A_ (W)w, 1);
1807	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2068	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1808	}	2069	}
1809		2070
1810	void	2071	void
1811	ev_child_stop (EV_P_ ev_child *w)	2072	ev_child_stop (EV_P_ ev_child *w)
1812	{	2073	{
1813	clear_pending (EV_A_ (W)w);	2074	clear_pending (EV_A_ (W)w);
1814	if (expect_false (!ev_is_active (w)))	2075	if (expect_false (!ev_is_active (w)))
1815	return;	2076	return;
1816		2077
1817	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2078	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1818	ev_stop (EV_A_ (W)w);	2079	ev_stop (EV_A_ (W)w);
1819	}	2080	}
1820		2081
1821	#if EV_STAT_ENABLE	2082	#if EV_STAT_ENABLE
1822		2083
…		…
2164		2425
2165	#if EV_EMBED_ENABLE	2426	#if EV_EMBED_ENABLE
2166	void noinline	2427	void noinline
2167	ev_embed_sweep (EV_P_ ev_embed *w)	2428	ev_embed_sweep (EV_P_ ev_embed *w)
2168	{	2429	{
2169	ev_loop (w->loop, EVLOOP_NONBLOCK);	2430	ev_loop (w->other, EVLOOP_NONBLOCK);
2170	}	2431	}
2171		2432
2172	static void	2433	static void
2173	embed_cb (EV_P_ ev_io *io, int revents)	2434	embed_io_cb (EV_P_ ev_io *io, int revents)
2174	{	2435	{
2175	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2436	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2176		2437
2177	if (ev_cb (w))	2438	if (ev_cb (w))
2178	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2439	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2179	else	2440	else
2180	ev_embed_sweep (loop, w);	2441	ev_loop (w->other, EVLOOP_NONBLOCK);
2181	}	2442	}
		2443
		2444	static void
		2445	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2446	{
		2447	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2448
		2449	{
		2450	struct ev_loop *loop = w->other;
		2451
		2452	while (fdchangecnt)
		2453	{
		2454	fd_reify (EV_A);
		2455	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2456	}
		2457	}
		2458	}
		2459
		2460	#if 0
		2461	static void
		2462	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2463	{
		2464	ev_idle_stop (EV_A_ idle);
		2465	}
		2466	#endif
2182		2467
2183	void	2468	void
2184	ev_embed_start (EV_P_ ev_embed *w)	2469	ev_embed_start (EV_P_ ev_embed *w)
2185	{	2470	{
2186	if (expect_false (ev_is_active (w)))	2471	if (expect_false (ev_is_active (w)))
2187	return;	2472	return;
2188		2473
2189	{	2474	{
2190	struct ev_loop *loop = w->loop;	2475	struct ev_loop *loop = w->other;
2191	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2476	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2192	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2477	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2193	}	2478	}
2194		2479
2195	ev_set_priority (&w->io, ev_priority (w));	2480	ev_set_priority (&w->io, ev_priority (w));
2196	ev_io_start (EV_A_ &w->io);	2481	ev_io_start (EV_A_ &w->io);
2197		2482
		2483	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2484	ev_set_priority (&w->prepare, EV_MINPRI);
		2485	ev_prepare_start (EV_A_ &w->prepare);
		2486
		2487	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2488
2198	ev_start (EV_A_ (W)w, 1);	2489	ev_start (EV_A_ (W)w, 1);
2199	}	2490	}
2200		2491
2201	void	2492	void
2202	ev_embed_stop (EV_P_ ev_embed *w)	2493	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2204	clear_pending (EV_A_ (W)w);	2495	clear_pending (EV_A_ (W)w);
2205	if (expect_false (!ev_is_active (w)))	2496	if (expect_false (!ev_is_active (w)))
2206	return;	2497	return;
2207		2498
2208	ev_io_stop (EV_A_ &w->io);	2499	ev_io_stop (EV_A_ &w->io);
		2500	ev_prepare_stop (EV_A_ &w->prepare);
2209		2501
2210	ev_stop (EV_A_ (W)w);	2502	ev_stop (EV_A_ (W)w);
2211	}	2503	}
2212	#endif	2504	#endif
2213		2505
…		…
2238		2530
2239	ev_stop (EV_A_ (W)w);	2531	ev_stop (EV_A_ (W)w);
2240	}	2532	}
2241	#endif	2533	#endif
2242		2534
		2535	#if EV_ASYNC_ENABLE
		2536	void
		2537	ev_async_start (EV_P_ ev_async *w)
		2538	{
		2539	if (expect_false (ev_is_active (w)))
		2540	return;
		2541
		2542	evpipe_init (EV_A);
		2543
		2544	ev_start (EV_A_ (W)w, ++asynccnt);
		2545	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2546	asyncs [asynccnt - 1] = w;
		2547	}
		2548
		2549	void
		2550	ev_async_stop (EV_P_ ev_async *w)
		2551	{
		2552	clear_pending (EV_A_ (W)w);
		2553	if (expect_false (!ev_is_active (w)))
		2554	return;
		2555
		2556	{
		2557	int active = ((W)w)->active;
		2558	asyncs [active - 1] = asyncs [--asynccnt];
		2559	((W)asyncs [active - 1])->active = active;
		2560	}
		2561
		2562	ev_stop (EV_A_ (W)w);
		2563	}
		2564
		2565	void
		2566	ev_async_send (EV_P_ ev_async *w)
		2567	{
		2568	w->sent = 1;
		2569	evpipe_write (EV_A_ &gotasync);
		2570	}
		2571	#endif
		2572
2243	/*****************************************************************************/	2573	/*****************************************************************************/
2244		2574
2245	struct ev_once	2575	struct ev_once
2246	{	2576	{
2247	ev_io io;	2577	ev_io io;
…		…
2302	ev_timer_set (&once->to, timeout, 0.);	2632	ev_timer_set (&once->to, timeout, 0.);
2303	ev_timer_start (EV_A_ &once->to);	2633	ev_timer_start (EV_A_ &once->to);
2304	}	2634	}
2305	}	2635	}
2306		2636
		2637	#if EV_MULTIPLICITY
		2638	#include "ev_wrap.h"
		2639	#endif
		2640
2307	#ifdef __cplusplus	2641	#ifdef __cplusplus
2308	}	2642	}
2309	#endif	2643	#endif
2310		2644

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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 1.224 by root, Wed Apr 9 22:07:50 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 1.224 by root, Wed Apr 9 22:07:50 2008 UTC