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

Comparing libev/ev.c (file contents):
Revision 1.177 by root, Tue Dec 11 15:06:50 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
…		…
476	pendings [pri][w_->pending - 1].w = w_;	589	pendings [pri][w_->pending - 1].w = w_;
477	pendings [pri][w_->pending - 1].events = revents;	590	pendings [pri][w_->pending - 1].events = revents;
478	}	591	}
479	}	592	}
480		593
481	void inline_size	594	void inline_speed
482	queue_events (EV_P_ W *events, int eventcnt, int type)	595	queue_events (EV_P_ W *events, int eventcnt, int type)
483	{	596	{
484	int i;	597	int i;
485		598
486	for (i = 0; i < eventcnt; ++i)	599	for (i = 0; i < eventcnt; ++i)
…		…
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 && heap [k >> 1]->at > w->at)	768	for (;;)
644	{	769	{
		770	int p = k >> 1;
		771
		772	/* maybe we could use a dummy element at heap [0]? */
		773	if (!p \|\| heap [p]->at <= w->at)
		774	break;
		775
645	heap [k] = heap [k >> 1];	776	heap [k] = heap [p];
646	((W)heap [k])->active = k + 1;	777	ev_active (heap [k]) = k;
647	k >>= 1;	778	k = p;
648	}	779	}
649		780
650	heap [k] = w;	781	heap [k] = w;
651	((W)heap [k])->active = k + 1;	782	ev_active (heap [k]) = k;
652
653	}	783	}
654		784
		785	/* away from the root */
655	void inline_speed	786	void inline_speed
656	downheap (WT *heap, int N, int k)	787	downheap (WT *heap, int N, int k)
657	{	788	{
658	WT w = heap [k];	789	WT w = heap [k];
659		790
660	while (k < (N >> 1))	791	for (;;)
661	{	792	{
662	int j = k << 1;	793	int c = k << 1;
663		794
664	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	795	if (c > N)
665	++j;
666
667	if (w->at <= heap [j]->at)
668	break;	796	break;
669		797
		798	c += c < N && heap [c]->at > heap [c + 1]->at
		799	? 1 : 0;
		800
		801	if (w->at <= heap [c]->at)
		802	break;
		803
670	heap [k] = heap [j];	804	heap [k] = heap [c];
671	((W)heap [k])->active = k + 1;	805	ev_active (heap [k]) = k;
		806
672	k = j;	807	k = c;
673	}	808	}
674		809
675	heap [k] = w;	810	heap [k] = w;
676	((W)heap [k])->active = k + 1;	811	ev_active (heap [k]) = k;
677	}	812	}
678		813
679	void inline_size	814	void inline_size
680	adjustheap (WT *heap, int N, int k)	815	adjustheap (WT *heap, int N, int k)
681	{	816	{
…		…
686	/*****************************************************************************/	821	/*****************************************************************************/
687		822
688	typedef struct	823	typedef struct
689	{	824	{
690	WL head;	825	WL head;
691	sig_atomic_t volatile gotsig;	826	EV_ATOMIC_T gotsig;
692	} ANSIG;	827	} ANSIG;
693		828
694	static ANSIG *signals;	829	static ANSIG *signals;
695	static int signalmax;	830	static int signalmax;
696		831
697	static int sigpipe [2];	832	static EV_ATOMIC_T gotsig;
698	static sig_atomic_t volatile gotsig;
699	static ev_io sigev;
700		833
701	void inline_size	834	void inline_size
702	signals_init (ANSIG *base, int count)	835	signals_init (ANSIG *base, int count)
703	{	836	{
704	while (count--)	837	while (count--)
…		…
708		841
709	++base;	842	++base;
710	}	843	}
711	}	844	}
712		845
713	static void	846	/*****************************************************************************/
714	sighandler (int signum)
715	{
716	#if _WIN32
717	signal (signum, sighandler);
718	#endif
719
720	signals [signum - 1].gotsig = 1;
721
722	if (!gotsig)
723	{
724	int old_errno = errno;
725	gotsig = 1;
726	write (sigpipe [1], &signum, 1);
727	errno = old_errno;
728	}
729	}
730
731	void noinline
732	ev_feed_signal_event (EV_P_ int signum)
733	{
734	WL w;
735
736	#if EV_MULTIPLICITY
737	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
738	#endif
739
740	--signum;
741
742	if (signum < 0 \|\| signum >= signalmax)
743	return;
744
745	signals [signum].gotsig = 0;
746
747	for (w = signals [signum].head; w; w = w->next)
748	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
749	}
750
751	static void
752	sigcb (EV_P_ ev_io *iow, int revents)
753	{
754	int signum;
755
756	read (sigpipe [0], &revents, 1);
757	gotsig = 0;
758
759	for (signum = signalmax; signum--; )
760	if (signals [signum].gotsig)
761	ev_feed_signal_event (EV_A_ signum + 1);
762	}
763		847
764	void inline_speed	848	void inline_speed
765	fd_intern (int fd)	849	fd_intern (int fd)
766	{	850	{
767	#ifdef _WIN32	851	#ifdef _WIN32
…		…
772	fcntl (fd, F_SETFL, O_NONBLOCK);	856	fcntl (fd, F_SETFL, O_NONBLOCK);
773	#endif	857	#endif
774	}	858	}
775		859
776	static void noinline	860	static void noinline
777	siginit (EV_P)	861	evpipe_init (EV_P)
778	{	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
779	fd_intern (sigpipe [0]);	878	fd_intern (evpipe [0]);
780	fd_intern (sigpipe [1]);	879	fd_intern (evpipe [1]);
		880	ev_io_set (&pipeev, evpipe [0], EV_READ);
		881	}
781		882
782	ev_io_set (&sigev, sigpipe [0], EV_READ);
783	ev_io_start (EV_A_ &sigev);	883	ev_io_start (EV_A_ &pipeev);
784	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
785	}	951	}
786		952
787	/*****************************************************************************/	953	/*****************************************************************************/
788		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
789	static ev_child *childs [EV_PID_HASHSIZE];	992	static WL childs [EV_PID_HASHSIZE];
790		993
791	#ifndef _WIN32	994	#ifndef _WIN32
792		995
793	static ev_signal childev;	996	static ev_signal childev;
794		997
		998	#ifndef WIFCONTINUED
		999	# define WIFCONTINUED(status) 0
		1000	#endif
		1001
795	void inline_speed	1002	void inline_speed
796	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1003	child_reap (EV_P_ int chain, int pid, int status)
797	{	1004	{
798	ev_child *w;	1005	ev_child *w;
		1006	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
799		1007
800	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	{
801	if (w->pid == pid \|\| !w->pid)	1010	if ((w->pid == pid \|\| !w->pid)
		1011	&& (!traced \|\| (w->flags & 1)))
802	{	1012	{
803	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 */
804	w->rpid = pid;	1014	w->rpid = pid;
805	w->rstatus = status;	1015	w->rstatus = status;
806	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1016	ev_feed_event (EV_A_ (W)w, EV_CHILD);
807	}	1017	}
		1018	}
808	}	1019	}
809		1020
810	#ifndef WCONTINUED	1021	#ifndef WCONTINUED
811	# define WCONTINUED 0	1022	# define WCONTINUED 0
812	#endif	1023	#endif
…		…
821	if (!WCONTINUED	1032	if (!WCONTINUED
822	\|\| errno != EINVAL	1033	\|\| errno != EINVAL
823	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1034	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
824	return;	1035	return;
825		1036
826	/* 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 */
827	/* 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 */
828	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1039	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
829		1040
830	child_reap (EV_A_ sw, pid, pid, status);	1041	child_reap (EV_A_ pid, pid, status);
831	if (EV_PID_HASHSIZE > 1)	1042	if (EV_PID_HASHSIZE > 1)
832	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 */
833	}	1044	}
834		1045
835	#endif	1046	#endif
836		1047
837	/*****************************************************************************/	1048	/*****************************************************************************/
…		…
909	}	1120	}
910		1121
911	unsigned int	1122	unsigned int
912	ev_embeddable_backends (void)	1123	ev_embeddable_backends (void)
913	{	1124	{
914	return EVBACKEND_EPOLL	1125	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
915	\| EVBACKEND_KQUEUE	1126
916	\| 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;
917	}	1132	}
918		1133
919	unsigned int	1134	unsigned int
920	ev_backend (EV_P)	1135	ev_backend (EV_P)
921	{	1136	{
…		…
924		1139
925	unsigned int	1140	unsigned int
926	ev_loop_count (EV_P)	1141	ev_loop_count (EV_P)
927	{	1142	{
928	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;
929	}	1156	}
930		1157
931	static void noinline	1158	static void noinline
932	loop_init (EV_P_ unsigned int flags)	1159	loop_init (EV_P_ unsigned int flags)
933	{	1160	{
…		…
939	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1166	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
940	have_monotonic = 1;	1167	have_monotonic = 1;
941	}	1168	}
942	#endif	1169	#endif
943		1170
944	ev_rt_now = ev_time ();	1171	ev_rt_now = ev_time ();
945	mn_now = get_clock ();	1172	mn_now = get_clock ();
946	now_floor = mn_now;	1173	now_floor = mn_now;
947	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
948		1184
949	/* pid check not overridable via env */	1185	/* pid check not overridable via env */
950	#ifndef _WIN32	1186	#ifndef _WIN32
951	if (flags & EVFLAG_FORKCHECK)	1187	if (flags & EVFLAG_FORKCHECK)
952	curpid = getpid ();	1188	curpid = getpid ();
…		…
955	if (!(flags & EVFLAG_NOENV)	1191	if (!(flags & EVFLAG_NOENV)
956	&& !enable_secure ()	1192	&& !enable_secure ()
957	&& getenv ("LIBEV_FLAGS"))	1193	&& getenv ("LIBEV_FLAGS"))
958	flags = atoi (getenv ("LIBEV_FLAGS"));	1194	flags = atoi (getenv ("LIBEV_FLAGS"));
959		1195
960	if (!(flags & 0x0000ffffUL))	1196	if (!(flags & 0x0000ffffU))
961	flags \|= ev_recommended_backends ();	1197	flags \|= ev_recommended_backends ();
962
963	backend = 0;
964	backend_fd = -1;
965	#if EV_USE_INOTIFY
966	fs_fd = -2;
967	#endif
968		1198
969	#if EV_USE_PORT	1199	#if EV_USE_PORT
970	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1200	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
971	#endif	1201	#endif
972	#if EV_USE_KQUEUE	1202	#if EV_USE_KQUEUE
…		…
980	#endif	1210	#endif
981	#if EV_USE_SELECT	1211	#if EV_USE_SELECT
982	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1212	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
983	#endif	1213	#endif
984		1214
985	ev_init (&sigev, sigcb);	1215	ev_init (&pipeev, pipecb);
986	ev_set_priority (&sigev, EV_MAXPRI);	1216	ev_set_priority (&pipeev, EV_MAXPRI);
987	}	1217	}
988	}	1218	}
989		1219
990	static void noinline	1220	static void noinline
991	loop_destroy (EV_P)	1221	loop_destroy (EV_P)
992	{	1222	{
993	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	}
994		1241
995	#if EV_USE_INOTIFY	1242	#if EV_USE_INOTIFY
996	if (fs_fd >= 0)	1243	if (fs_fd >= 0)
997	close (fs_fd);	1244	close (fs_fd);
998	#endif	1245	#endif
…		…
1021	array_free (pending, [i]);	1268	array_free (pending, [i]);
1022	#if EV_IDLE_ENABLE	1269	#if EV_IDLE_ENABLE
1023	array_free (idle, [i]);	1270	array_free (idle, [i]);
1024	#endif	1271	#endif
1025	}	1272	}
		1273
		1274	ev_free (anfds); anfdmax = 0;
1026		1275
1027	/* have to use the microsoft-never-gets-it-right macro */	1276	/* have to use the microsoft-never-gets-it-right macro */
1028	array_free (fdchange, EMPTY);	1277	array_free (fdchange, EMPTY);
1029	array_free (timer, EMPTY);	1278	array_free (timer, EMPTY);
1030	#if EV_PERIODIC_ENABLE	1279	#if EV_PERIODIC_ENABLE
1031	array_free (periodic, EMPTY);	1280	array_free (periodic, EMPTY);
1032	#endif	1281	#endif
		1282	#if EV_FORK_ENABLE
		1283	array_free (fork, EMPTY);
		1284	#endif
1033	array_free (prepare, EMPTY);	1285	array_free (prepare, EMPTY);
1034	array_free (check, EMPTY);	1286	array_free (check, EMPTY);
		1287	#if EV_ASYNC_ENABLE
		1288	array_free (async, EMPTY);
		1289	#endif
1035		1290
1036	backend = 0;	1291	backend = 0;
1037	}	1292	}
1038		1293
		1294	#if EV_USE_INOTIFY
1039	void inline_size infy_fork (EV_P);	1295	void inline_size infy_fork (EV_P);
		1296	#endif
1040		1297
1041	void inline_size	1298	void inline_size
1042	loop_fork (EV_P)	1299	loop_fork (EV_P)
1043	{	1300	{
1044	#if EV_USE_PORT	1301	#if EV_USE_PORT
…		…
1052	#endif	1309	#endif
1053	#if EV_USE_INOTIFY	1310	#if EV_USE_INOTIFY
1054	infy_fork (EV_A);	1311	infy_fork (EV_A);
1055	#endif	1312	#endif
1056		1313
1057	if (ev_is_active (&sigev))	1314	if (ev_is_active (&pipeev))
1058	{	1315	{
1059	/* 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
1060		1322
1061	ev_ref (EV_A);	1323	ev_ref (EV_A);
1062	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	{
1063	close (sigpipe [0]);	1333	close (evpipe [0]);
1064	close (sigpipe [1]);	1334	close (evpipe [1]);
		1335	}
1065		1336
1066	while (pipe (sigpipe))
1067	syserr ("(libev) error creating pipe");
1068
1069	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);
1070	}	1340	}
1071		1341
1072	postfork = 0;	1342	postfork = 0;
1073	}	1343	}
1074		1344
…		…
1096	}	1366	}
1097		1367
1098	void	1368	void
1099	ev_loop_fork (EV_P)	1369	ev_loop_fork (EV_P)
1100	{	1370	{
1101	postfork = 1;	1371	postfork = 1; /* must be in line with ev_default_fork */
1102	}	1372	}
1103		1373
1104	#endif	1374	#endif
1105		1375
1106	#if EV_MULTIPLICITY	1376	#if EV_MULTIPLICITY
…		…
1109	#else	1379	#else
1110	int	1380	int
1111	ev_default_loop (unsigned int flags)	1381	ev_default_loop (unsigned int flags)
1112	#endif	1382	#endif
1113	{	1383	{
1114	if (sigpipe [0] == sigpipe [1])
1115	if (pipe (sigpipe))
1116	return 0;
1117
1118	if (!ev_default_loop_ptr)	1384	if (!ev_default_loop_ptr)
1119	{	1385	{
1120	#if EV_MULTIPLICITY	1386	#if EV_MULTIPLICITY
1121	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1387	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1122	#else	1388	#else
…		…
1125		1391
1126	loop_init (EV_A_ flags);	1392	loop_init (EV_A_ flags);
1127		1393
1128	if (ev_backend (EV_A))	1394	if (ev_backend (EV_A))
1129	{	1395	{
1130	siginit (EV_A);
1131
1132	#ifndef _WIN32	1396	#ifndef _WIN32
1133	ev_signal_init (&childev, childcb, SIGCHLD);	1397	ev_signal_init (&childev, childcb, SIGCHLD);
1134	ev_set_priority (&childev, EV_MAXPRI);	1398	ev_set_priority (&childev, EV_MAXPRI);
1135	ev_signal_start (EV_A_ &childev);	1399	ev_signal_start (EV_A_ &childev);
1136	ev_unref (EV_A); /* child watcher should not keep loop alive */	1400	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1153	#ifndef _WIN32	1417	#ifndef _WIN32
1154	ev_ref (EV_A); /* child watcher */	1418	ev_ref (EV_A); /* child watcher */
1155	ev_signal_stop (EV_A_ &childev);	1419	ev_signal_stop (EV_A_ &childev);
1156	#endif	1420	#endif
1157		1421
1158	ev_ref (EV_A); /* signal watcher */
1159	ev_io_stop (EV_A_ &sigev);
1160
1161	close (sigpipe [0]); sigpipe [0] = 0;
1162	close (sigpipe [1]); sigpipe [1] = 0;
1163
1164	loop_destroy (EV_A);	1422	loop_destroy (EV_A);
1165	}	1423	}
1166		1424
1167	void	1425	void
1168	ev_default_fork (void)	1426	ev_default_fork (void)
…		…
1170	#if EV_MULTIPLICITY	1428	#if EV_MULTIPLICITY
1171	struct ev_loop *loop = ev_default_loop_ptr;	1429	struct ev_loop *loop = ev_default_loop_ptr;
1172	#endif	1430	#endif
1173		1431
1174	if (backend)	1432	if (backend)
1175	postfork = 1;	1433	postfork = 1; /* must be in line with ev_loop_fork */
1176	}	1434	}
1177		1435
1178	/*****************************************************************************/	1436	/*****************************************************************************/
1179		1437
1180	void	1438	void
…		…
1204	}	1462	}
1205		1463
1206	void inline_size	1464	void inline_size
1207	timers_reify (EV_P)	1465	timers_reify (EV_P)
1208	{	1466	{
1209	while (timercnt && ((WT)timers [0])->at <= mn_now)	1467	while (timercnt && ev_at (timers [1]) <= mn_now)
1210	{	1468	{
1211	ev_timer *w = timers [0];	1469	ev_timer w = (ev_timer )timers [1];
1212		1470
1213	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1471	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1214		1472
1215	/* first reschedule or stop timer */	1473	/* first reschedule or stop timer */
1216	if (w->repeat)	1474	if (w->repeat)
1217	{	1475	{
1218	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.));
1219		1477
1220	((WT)w)->at += w->repeat;	1478	ev_at (w) += w->repeat;
1221	if (((WT)w)->at < mn_now)	1479	if (ev_at (w) < mn_now)
1222	((WT)w)->at = mn_now;	1480	ev_at (w) = mn_now;
1223		1481
1224	downheap ((WT *)timers, timercnt, 0);	1482	downheap (timers, timercnt, 1);
1225	}	1483	}
1226	else	1484	else
1227	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1485	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1228		1486
1229	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1487	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1232		1490
1233	#if EV_PERIODIC_ENABLE	1491	#if EV_PERIODIC_ENABLE
1234	void inline_size	1492	void inline_size
1235	periodics_reify (EV_P)	1493	periodics_reify (EV_P)
1236	{	1494	{
1237	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1495	while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1238	{	1496	{
1239	ev_periodic *w = periodics [0];	1497	ev_periodic w = (ev_periodic )periodics [1];
1240		1498
1241	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1499	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1242		1500
1243	/* first reschedule or stop timer */	1501	/* first reschedule or stop timer */
1244	if (w->reschedule_cb)	1502	if (w->reschedule_cb)
1245	{	1503	{
1246	((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);
1247	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));
1248	downheap ((WT *)periodics, periodiccnt, 0);	1506	downheap (periodics, periodiccnt, 1);
1249	}	1507	}
1250	else if (w->interval)	1508	else if (w->interval)
1251	{	1509	{
1252	((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;
1253	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;
1254	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));
1255	downheap ((WT *)periodics, periodiccnt, 0);	1513	downheap (periodics, periodiccnt, 1);
1256	}	1514	}
1257	else	1515	else
1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1516	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259		1517
1260	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1518	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1267	int i;	1525	int i;
1268		1526
1269	/* adjust periodics after time jump */	1527	/* adjust periodics after time jump */
1270	for (i = 0; i < periodiccnt; ++i)	1528	for (i = 0; i < periodiccnt; ++i)
1271	{	1529	{
1272	ev_periodic *w = periodics [i];	1530	ev_periodic w = (ev_periodic )periodics [i];
1273		1531
1274	if (w->reschedule_cb)	1532	if (w->reschedule_cb)
1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1533	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1276	else if (w->interval)	1534	else if (w->interval)
1277	((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;
1278	}	1536	}
1279		1537
1280	/* now rebuild the heap */	1538	/* now rebuild the heap */
1281	for (i = periodiccnt >> 1; i--; )	1539	for (i = periodiccnt >> 1; i--; )
1282	downheap ((WT *)periodics, periodiccnt, i);	1540	downheap (periodics, periodiccnt, i);
1283	}	1541	}
1284	#endif	1542	#endif
1285		1543
1286	#if EV_IDLE_ENABLE	1544	#if EV_IDLE_ENABLE
1287	void inline_size	1545	void inline_size
…		…
1304	}	1562	}
1305	}	1563	}
1306	}	1564	}
1307	#endif	1565	#endif
1308		1566
1309	int inline_size	1567	void inline_speed
1310	time_update_monotonic (EV_P)	1568	time_update (EV_P_ ev_tstamp max_block)
1311	{	1569	{
		1570	int i;
		1571
		1572	#if EV_USE_MONOTONIC
		1573	if (expect_true (have_monotonic))
		1574	{
		1575	ev_tstamp odiff = rtmn_diff;
		1576
1312	mn_now = get_clock ();	1577	mn_now = get_clock ();
1313		1578
		1579	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1580	/* interpolate in the meantime */
1314	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1581	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1315	{	1582	{
1316	ev_rt_now = rtmn_diff + mn_now;	1583	ev_rt_now = rtmn_diff + mn_now;
1317	return 0;	1584	return;
1318	}	1585	}
1319	else	1586
1320	{
1321	now_floor = mn_now;	1587	now_floor = mn_now;
1322	ev_rt_now = ev_time ();	1588	ev_rt_now = ev_time ();
1323	return 1;
1324	}
1325	}
1326		1589
1327	void inline_size	1590	/* loop a few times, before making important decisions.
1328	time_update (EV_P)	1591	* on the choice of "4": one iteration isn't enough,
1329	{	1592	* in case we get preempted during the calls to
1330	int i;	1593	* ev_time and get_clock. a second call is almost guaranteed
1331		1594	* to succeed in that case, though. and looping a few more times
1332	#if EV_USE_MONOTONIC	1595	* doesn't hurt either as we only do this on time-jumps or
1333	if (expect_true (have_monotonic))	1596	* in the unlikely event of having been preempted here.
1334	{	1597	*/
1335	if (time_update_monotonic (EV_A))	1598	for (i = 4; --i; )
1336	{	1599	{
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;	1600	rtmn_diff = ev_rt_now - mn_now;
1350		1601
1351	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1602	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1352	return; /* all is well */	1603	return; /* all is well */
1353		1604
1354	ev_rt_now = ev_time ();	1605	ev_rt_now = ev_time ();
1355	mn_now = get_clock ();	1606	mn_now = get_clock ();
1356	now_floor = mn_now;	1607	now_floor = mn_now;
1357	}	1608	}
1358		1609
1359	# if EV_PERIODIC_ENABLE	1610	# if EV_PERIODIC_ENABLE
1360	periodics_reschedule (EV_A);	1611	periodics_reschedule (EV_A);
1361	# endif	1612	# endif
1362	/* no timer adjustment, as the monotonic clock doesn't jump */	1613	/* no timer adjustment, as the monotonic clock doesn't jump */
1363	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1614	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1364	}
1365	}	1615	}
1366	else	1616	else
1367	#endif	1617	#endif
1368	{	1618	{
1369	ev_rt_now = ev_time ();	1619	ev_rt_now = ev_time ();
1370		1620
1371	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1621	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1372	{	1622	{
1373	#if EV_PERIODIC_ENABLE	1623	#if EV_PERIODIC_ENABLE
1374	periodics_reschedule (EV_A);	1624	periodics_reschedule (EV_A);
1375	#endif	1625	#endif
1376	/* 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 */
1377	for (i = 0; i < timercnt; ++i)	1627	for (i = 1; i <= timercnt; ++i)
1378	((WT)timers [i])->at += ev_rt_now - mn_now;	1628	ev_at (timers [i]) += ev_rt_now - mn_now;
1379	}	1629	}
1380		1630
1381	mn_now = ev_rt_now;	1631	mn_now = ev_rt_now;
1382	}	1632	}
1383	}	1633	}
…		…
1397	static int loop_done;	1647	static int loop_done;
1398		1648
1399	void	1649	void
1400	ev_loop (EV_P_ int flags)	1650	ev_loop (EV_P_ int flags)
1401	{	1651	{
1402	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1652	loop_done = EVUNLOOP_CANCEL;
1403	? EVUNLOOP_ONE
1404	: EVUNLOOP_CANCEL;
1405		1653
1406	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 */
1407		1655
1408	do	1656	do
1409	{	1657	{
…		…
1443	/* update fd-related kernel structures */	1691	/* update fd-related kernel structures */
1444	fd_reify (EV_A);	1692	fd_reify (EV_A);
1445		1693
1446	/* calculate blocking time */	1694	/* calculate blocking time */
1447	{	1695	{
1448	ev_tstamp block;	1696	ev_tstamp waittime = 0.;
		1697	ev_tstamp sleeptime = 0.;
1449		1698
1450	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1699	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1451	block = 0.; /* do not block at all */
1452	else
1453	{	1700	{
1454	/* update time to cancel out callback processing overhead */	1701	/* update time to cancel out callback processing overhead */
1455	#if EV_USE_MONOTONIC
1456	if (expect_true (have_monotonic))
1457	time_update_monotonic (EV_A);	1702	time_update (EV_A_ 1e100);
1458	else
1459	#endif
1460	{
1461	ev_rt_now = ev_time ();
1462	mn_now = ev_rt_now;
1463	}
1464		1703
1465	block = MAX_BLOCKTIME;	1704	waittime = MAX_BLOCKTIME;
1466		1705
1467	if (timercnt)	1706	if (timercnt)
1468	{	1707	{
1469	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1708	ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1470	if (block > to) block = to;	1709	if (waittime > to) waittime = to;
1471	}	1710	}
1472		1711
1473	#if EV_PERIODIC_ENABLE	1712	#if EV_PERIODIC_ENABLE
1474	if (periodiccnt)	1713	if (periodiccnt)
1475	{	1714	{
1476	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;
1477	if (block > to) block = to;	1716	if (waittime > to) waittime = to;
1478	}	1717	}
1479	#endif	1718	#endif
1480		1719
1481	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	}
1482	}	1733	}
1483		1734
1484	++loop_count;	1735	++loop_count;
1485	backend_poll (EV_A_ block);	1736	backend_poll (EV_A_ waittime);
		1737
		1738	/* update ev_rt_now, do magic */
		1739	time_update (EV_A_ waittime + sleeptime);
1486	}	1740	}
1487
1488	/* update ev_rt_now, do magic */
1489	time_update (EV_A);
1490		1741
1491	/* queue pending timers and reschedule them */	1742	/* queue pending timers and reschedule them */
1492	timers_reify (EV_A); /* relative timers called last */	1743	timers_reify (EV_A); /* relative timers called last */
1493	#if EV_PERIODIC_ENABLE	1744	#if EV_PERIODIC_ENABLE
1494	periodics_reify (EV_A); /* absolute timers called first */	1745	periodics_reify (EV_A); /* absolute timers called first */
…		…
1502	/* queue check watchers, to be executed first */	1753	/* queue check watchers, to be executed first */
1503	if (expect_false (checkcnt))	1754	if (expect_false (checkcnt))
1504	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1755	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1505		1756
1506	call_pending (EV_A);	1757	call_pending (EV_A);
1507
1508	}	1758	}
1509	while (expect_true (activecnt && !loop_done));	1759	while (expect_true (
		1760	activecnt
		1761	&& !loop_done
		1762	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1763	));
1510		1764
1511	if (loop_done == EVUNLOOP_ONE)	1765	if (loop_done == EVUNLOOP_ONE)
1512	loop_done = EVUNLOOP_CANCEL;	1766	loop_done = EVUNLOOP_CANCEL;
1513	}	1767	}
1514		1768
…		…
1605		1859
1606	assert (("ev_io_start called with negative fd", fd >= 0));	1860	assert (("ev_io_start called with negative fd", fd >= 0));
1607		1861
1608	ev_start (EV_A_ (W)w, 1);	1862	ev_start (EV_A_ (W)w, 1);
1609	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1863	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1610	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1864	wlist_add (&anfds[fd].head, (WL)w);
1611		1865
1612	fd_change (EV_A_ fd);	1866	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1867	w->events &= ~EV_IOFDSET;
1613	}	1868	}
1614		1869
1615	void noinline	1870	void noinline
1616	ev_io_stop (EV_P_ ev_io *w)	1871	ev_io_stop (EV_P_ ev_io *w)
1617	{	1872	{
…		…
1619	if (expect_false (!ev_is_active (w)))	1874	if (expect_false (!ev_is_active (w)))
1620	return;	1875	return;
1621		1876
1622	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));
1623		1878
1624	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1879	wlist_del (&anfds[w->fd].head, (WL)w);
1625	ev_stop (EV_A_ (W)w);	1880	ev_stop (EV_A_ (W)w);
1626		1881
1627	fd_change (EV_A_ w->fd);	1882	fd_change (EV_A_ w->fd, 1);
1628	}	1883	}
1629		1884
1630	void noinline	1885	void noinline
1631	ev_timer_start (EV_P_ ev_timer *w)	1886	ev_timer_start (EV_P_ ev_timer *w)
1632	{	1887	{
1633	if (expect_false (ev_is_active (w)))	1888	if (expect_false (ev_is_active (w)))
1634	return;	1889	return;
1635		1890
1636	((WT)w)->at += mn_now;	1891	ev_at (w) += mn_now;
1637		1892
1638	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.));
1639		1894
1640	ev_start (EV_A_ (W)w, ++timercnt);	1895	ev_start (EV_A_ (W)w, ++timercnt);
1641	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1896	array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1642	timers [timercnt - 1] = w;	1897	timers [timercnt] = (WT)w;
1643	upheap ((WT *)timers, timercnt - 1);	1898	upheap (timers, timercnt);
1644		1899
1645	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1900	/assert (("internal timer heap corruption", timers [ev_active (w)] == w));/
1646	}	1901	}
1647		1902
1648	void noinline	1903	void noinline
1649	ev_timer_stop (EV_P_ ev_timer *w)	1904	ev_timer_stop (EV_P_ ev_timer *w)
1650	{	1905	{
1651	clear_pending (EV_A_ (W)w);	1906	clear_pending (EV_A_ (W)w);
1652	if (expect_false (!ev_is_active (w)))	1907	if (expect_false (!ev_is_active (w)))
1653	return;	1908	return;
1654		1909
1655	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1656
1657	{	1910	{
1658	int active = ((W)w)->active;	1911	int active = ev_active (w);
1659		1912
		1913	assert (("internal timer heap corruption", timers [active] == (WT)w));
		1914
1660	if (expect_true (--active < --timercnt))	1915	if (expect_true (active < timercnt))
1661	{	1916	{
1662	timers [active] = timers [timercnt];	1917	timers [active] = timers [timercnt];
1663	adjustheap ((WT *)timers, timercnt, active);	1918	adjustheap (timers, timercnt, active);
1664	}	1919	}
		1920
		1921	--timercnt;
1665	}	1922	}
1666		1923
1667	((WT)w)->at -= mn_now;	1924	ev_at (w) -= mn_now;
1668		1925
1669	ev_stop (EV_A_ (W)w);	1926	ev_stop (EV_A_ (W)w);
1670	}	1927	}
1671		1928
1672	void noinline	1929	void noinline
…		…
1674	{	1931	{
1675	if (ev_is_active (w))	1932	if (ev_is_active (w))
1676	{	1933	{
1677	if (w->repeat)	1934	if (w->repeat)
1678	{	1935	{
1679	((WT)w)->at = mn_now + w->repeat;	1936	ev_at (w) = mn_now + w->repeat;
1680	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1937	adjustheap (timers, timercnt, ev_active (w));
1681	}	1938	}
1682	else	1939	else
1683	ev_timer_stop (EV_A_ w);	1940	ev_timer_stop (EV_A_ w);
1684	}	1941	}
1685	else if (w->repeat)	1942	else if (w->repeat)
1686	{	1943	{
1687	w->at = w->repeat;	1944	ev_at (w) = w->repeat;
1688	ev_timer_start (EV_A_ w);	1945	ev_timer_start (EV_A_ w);
1689	}	1946	}
1690	}	1947	}
1691		1948
1692	#if EV_PERIODIC_ENABLE	1949	#if EV_PERIODIC_ENABLE
…		…
1695	{	1952	{
1696	if (expect_false (ev_is_active (w)))	1953	if (expect_false (ev_is_active (w)))
1697	return;	1954	return;
1698		1955
1699	if (w->reschedule_cb)	1956	if (w->reschedule_cb)
1700	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1957	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1701	else if (w->interval)	1958	else if (w->interval)
1702	{	1959	{
1703	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.));
1704	/* 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 */
1705	((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;
1706	}	1963	}
1707	else	1964	else
1708	((WT)w)->at = w->offset;	1965	ev_at (w) = w->offset;
1709		1966
1710	ev_start (EV_A_ (W)w, ++periodiccnt);	1967	ev_start (EV_A_ (W)w, ++periodiccnt);
1711	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1968	array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1712	periodics [periodiccnt - 1] = w;	1969	periodics [periodiccnt] = (WT)w;
1713	upheap ((WT *)periodics, periodiccnt - 1);	1970	upheap (periodics, periodiccnt);
1714		1971
1715	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1972	/assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));/
1716	}	1973	}
1717		1974
1718	void noinline	1975	void noinline
1719	ev_periodic_stop (EV_P_ ev_periodic *w)	1976	ev_periodic_stop (EV_P_ ev_periodic *w)
1720	{	1977	{
1721	clear_pending (EV_A_ (W)w);	1978	clear_pending (EV_A_ (W)w);
1722	if (expect_false (!ev_is_active (w)))	1979	if (expect_false (!ev_is_active (w)))
1723	return;	1980	return;
1724		1981
1725	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1726
1727	{	1982	{
1728	int active = ((W)w)->active;	1983	int active = ev_active (w);
1729		1984
		1985	assert (("internal periodic heap corruption", periodics [active] == (WT)w));
		1986
1730	if (expect_true (--active < --periodiccnt))	1987	if (expect_true (active < periodiccnt))
1731	{	1988	{
1732	periodics [active] = periodics [periodiccnt];	1989	periodics [active] = periodics [periodiccnt];
1733	adjustheap ((WT *)periodics, periodiccnt, active);	1990	adjustheap (periodics, periodiccnt, active);
1734	}	1991	}
		1992
		1993	--periodiccnt;
1735	}	1994	}
1736		1995
1737	ev_stop (EV_A_ (W)w);	1996	ev_stop (EV_A_ (W)w);
1738	}	1997	}
1739		1998
…		…
1759	if (expect_false (ev_is_active (w)))	2018	if (expect_false (ev_is_active (w)))
1760	return;	2019	return;
1761		2020
1762	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));
1763		2022
		2023	evpipe_init (EV_A);
		2024
		2025	{
		2026	#ifndef _WIN32
		2027	sigset_t full, prev;
		2028	sigfillset (&full);
		2029	sigprocmask (SIG_SETMASK, &full, &prev);
		2030	#endif
		2031
		2032	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2033
		2034	#ifndef _WIN32
		2035	sigprocmask (SIG_SETMASK, &prev, 0);
		2036	#endif
		2037	}
		2038
1764	ev_start (EV_A_ (W)w, 1);	2039	ev_start (EV_A_ (W)w, 1);
1765	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1766	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2040	wlist_add (&signals [w->signum - 1].head, (WL)w);
1767		2041
1768	if (!((WL)w)->next)	2042	if (!((WL)w)->next)
1769	{	2043	{
1770	#if _WIN32	2044	#if _WIN32
1771	signal (w->signum, sighandler);	2045	signal (w->signum, ev_sighandler);
1772	#else	2046	#else
1773	struct sigaction sa;	2047	struct sigaction sa;
1774	sa.sa_handler = sighandler;	2048	sa.sa_handler = ev_sighandler;
1775	sigfillset (&sa.sa_mask);	2049	sigfillset (&sa.sa_mask);
1776	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 */
1777	sigaction (w->signum, &sa, 0);	2051	sigaction (w->signum, &sa, 0);
1778	#endif	2052	#endif
1779	}	2053	}
…		…
1784	{	2058	{
1785	clear_pending (EV_A_ (W)w);	2059	clear_pending (EV_A_ (W)w);
1786	if (expect_false (!ev_is_active (w)))	2060	if (expect_false (!ev_is_active (w)))
1787	return;	2061	return;
1788		2062
1789	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2063	wlist_del (&signals [w->signum - 1].head, (WL)w);
1790	ev_stop (EV_A_ (W)w);	2064	ev_stop (EV_A_ (W)w);
1791		2065
1792	if (!signals [w->signum - 1].head)	2066	if (!signals [w->signum - 1].head)
1793	signal (w->signum, SIG_DFL);	2067	signal (w->signum, SIG_DFL);
1794	}	2068	}
…		…
1801	#endif	2075	#endif
1802	if (expect_false (ev_is_active (w)))	2076	if (expect_false (ev_is_active (w)))
1803	return;	2077	return;
1804		2078
1805	ev_start (EV_A_ (W)w, 1);	2079	ev_start (EV_A_ (W)w, 1);
1806	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2080	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1807	}	2081	}
1808		2082
1809	void	2083	void
1810	ev_child_stop (EV_P_ ev_child *w)	2084	ev_child_stop (EV_P_ ev_child *w)
1811	{	2085	{
1812	clear_pending (EV_A_ (W)w);	2086	clear_pending (EV_A_ (W)w);
1813	if (expect_false (!ev_is_active (w)))	2087	if (expect_false (!ev_is_active (w)))
1814	return;	2088	return;
1815		2089
1816	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2090	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1817	ev_stop (EV_A_ (W)w);	2091	ev_stop (EV_A_ (W)w);
1818	}	2092	}
1819		2093
1820	#if EV_STAT_ENABLE	2094	#if EV_STAT_ENABLE
1821		2095
…		…
2094	clear_pending (EV_A_ (W)w);	2368	clear_pending (EV_A_ (W)w);
2095	if (expect_false (!ev_is_active (w)))	2369	if (expect_false (!ev_is_active (w)))
2096	return;	2370	return;
2097		2371
2098	{	2372	{
2099	int active = ((W)w)->active;	2373	int active = ev_active (w);
2100		2374
2101	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2375	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2102	((W)idles [ABSPRI (w)][active - 1])->active = active;	2376	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2103		2377
2104	ev_stop (EV_A_ (W)w);	2378	ev_stop (EV_A_ (W)w);
2105	--idleall;	2379	--idleall;
2106	}	2380	}
2107	}	2381	}
…		…
2124	clear_pending (EV_A_ (W)w);	2398	clear_pending (EV_A_ (W)w);
2125	if (expect_false (!ev_is_active (w)))	2399	if (expect_false (!ev_is_active (w)))
2126	return;	2400	return;
2127		2401
2128	{	2402	{
2129	int active = ((W)w)->active;	2403	int active = ev_active (w);
		2404
2130	prepares [active - 1] = prepares [--preparecnt];	2405	prepares [active - 1] = prepares [--preparecnt];
2131	((W)prepares [active - 1])->active = active;	2406	ev_active (prepares [active - 1]) = active;
2132	}	2407	}
2133		2408
2134	ev_stop (EV_A_ (W)w);	2409	ev_stop (EV_A_ (W)w);
2135	}	2410	}
2136		2411
…		…
2151	clear_pending (EV_A_ (W)w);	2426	clear_pending (EV_A_ (W)w);
2152	if (expect_false (!ev_is_active (w)))	2427	if (expect_false (!ev_is_active (w)))
2153	return;	2428	return;
2154		2429
2155	{	2430	{
2156	int active = ((W)w)->active;	2431	int active = ev_active (w);
		2432
2157	checks [active - 1] = checks [--checkcnt];	2433	checks [active - 1] = checks [--checkcnt];
2158	((W)checks [active - 1])->active = active;	2434	ev_active (checks [active - 1]) = active;
2159	}	2435	}
2160		2436
2161	ev_stop (EV_A_ (W)w);	2437	ev_stop (EV_A_ (W)w);
2162	}	2438	}
2163		2439
2164	#if EV_EMBED_ENABLE	2440	#if EV_EMBED_ENABLE
2165	void noinline	2441	void noinline
2166	ev_embed_sweep (EV_P_ ev_embed *w)	2442	ev_embed_sweep (EV_P_ ev_embed *w)
2167	{	2443	{
2168	ev_loop (w->loop, EVLOOP_NONBLOCK);	2444	ev_loop (w->other, EVLOOP_NONBLOCK);
2169	}	2445	}
2170		2446
2171	static void	2447	static void
2172	embed_cb (EV_P_ ev_io *io, int revents)	2448	embed_io_cb (EV_P_ ev_io *io, int revents)
2173	{	2449	{
2174	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2450	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2175		2451
2176	if (ev_cb (w))	2452	if (ev_cb (w))
2177	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2453	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2178	else	2454	else
2179	ev_embed_sweep (loop, w);	2455	ev_loop (w->other, EVLOOP_NONBLOCK);
2180	}	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
2181		2481
2182	void	2482	void
2183	ev_embed_start (EV_P_ ev_embed *w)	2483	ev_embed_start (EV_P_ ev_embed *w)
2184	{	2484	{
2185	if (expect_false (ev_is_active (w)))	2485	if (expect_false (ev_is_active (w)))
2186	return;	2486	return;
2187		2487
2188	{	2488	{
2189	struct ev_loop *loop = w->loop;	2489	struct ev_loop *loop = w->other;
2190	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 ()));
2191	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2491	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2192	}	2492	}
2193		2493
2194	ev_set_priority (&w->io, ev_priority (w));	2494	ev_set_priority (&w->io, ev_priority (w));
2195	ev_io_start (EV_A_ &w->io);	2495	ev_io_start (EV_A_ &w->io);
2196		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
2197	ev_start (EV_A_ (W)w, 1);	2503	ev_start (EV_A_ (W)w, 1);
2198	}	2504	}
2199		2505
2200	void	2506	void
2201	ev_embed_stop (EV_P_ ev_embed *w)	2507	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2203	clear_pending (EV_A_ (W)w);	2509	clear_pending (EV_A_ (W)w);
2204	if (expect_false (!ev_is_active (w)))	2510	if (expect_false (!ev_is_active (w)))
2205	return;	2511	return;
2206		2512
2207	ev_io_stop (EV_A_ &w->io);	2513	ev_io_stop (EV_A_ &w->io);
		2514	ev_prepare_stop (EV_A_ &w->prepare);
2208		2515
2209	ev_stop (EV_A_ (W)w);	2516	ev_stop (EV_A_ (W)w);
2210	}	2517	}
2211	#endif	2518	#endif
2212		2519
…		…
2228	clear_pending (EV_A_ (W)w);	2535	clear_pending (EV_A_ (W)w);
2229	if (expect_false (!ev_is_active (w)))	2536	if (expect_false (!ev_is_active (w)))
2230	return;	2537	return;
2231		2538
2232	{	2539	{
2233	int active = ((W)w)->active;	2540	int active = ev_active (w);
		2541
2234	forks [active - 1] = forks [--forkcnt];	2542	forks [active - 1] = forks [--forkcnt];
2235	((W)forks [active - 1])->active = active;	2543	ev_active (forks [active - 1]) = active;
2236	}	2544	}
2237		2545
2238	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);
2239	}	2586	}
2240	#endif	2587	#endif
2241		2588
2242	/*****************************************************************************/	2589	/*****************************************************************************/
2243		2590
…		…
2301	ev_timer_set (&once->to, timeout, 0.);	2648	ev_timer_set (&once->to, timeout, 0.);
2302	ev_timer_start (EV_A_ &once->to);	2649	ev_timer_start (EV_A_ &once->to);
2303	}	2650	}
2304	}	2651	}
2305		2652
		2653	#if EV_MULTIPLICITY
		2654	#include "ev_wrap.h"
		2655	#endif
		2656
2306	#ifdef __cplusplus	2657	#ifdef __cplusplus
2307	}	2658	}
2308	#endif	2659	#endif
2309		2660

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Comparing libev/ev.c (file contents): Revision 1.177 by root, Tue Dec 11 15:06:50 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 1.177 by root, Tue Dec 11 15:06:50 2007 UTC vs.
Revision 1.230 by root, Fri May 2 08:13:16 2008 UTC