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

Comparing libev/ev.c (file contents):
Revision 1.178 by root, Tue Dec 11 18:36:11 2007 UTC vs.
Revision 1.215 by ayin, Thu Feb 21 10:34:15 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
51	# ifndef EV_USE_MONOTONIC	59	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	60	# define EV_USE_MONOTONIC 0
53	# endif	61	# endif
54	# ifndef EV_USE_REALTIME	62	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	63	# define EV_USE_REALTIME 0
		64	# endif
		65	# endif
		66
		67	# ifndef EV_USE_NANOSLEEP
		68	# if HAVE_NANOSLEEP
		69	# define EV_USE_NANOSLEEP 1
		70	# else
		71	# define EV_USE_NANOSLEEP 0
56	# endif	72	# endif
57	# endif	73	# endif
58		74
59	# ifndef EV_USE_SELECT	75	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	76	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
146		162
147	#ifndef EV_USE_REALTIME	163	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	164	# define EV_USE_REALTIME 0
149	#endif	165	#endif
150		166
		167	#ifndef EV_USE_NANOSLEEP
		168	# define EV_USE_NANOSLEEP 0
		169	#endif
		170
151	#ifndef EV_USE_SELECT	171	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	172	# define EV_USE_SELECT 1
153	#endif	173	#endif
154		174
155	#ifndef EV_USE_POLL	175	#ifndef EV_USE_POLL
…		…
202	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
205	#endif	225	#endif
206		226
		227	#if !EV_STAT_ENABLE
		228	# undef EV_USE_INOTIFY
		229	# define EV_USE_INOTIFY 0
		230	#endif
		231
		232	#if !EV_USE_NANOSLEEP
		233	# ifndef _WIN32
		234	# include <sys/select.h>
		235	# endif
		236	#endif
		237
		238	#if EV_USE_INOTIFY
		239	# include <sys/inotify.h>
		240	#endif
		241
207	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	243	# include <winsock.h>
209	#endif
210
211	#if !EV_STAT_ENABLE
212	# define EV_USE_INOTIFY 0
213	#endif
214
215	#if EV_USE_INOTIFY
216	# include <sys/inotify.h>
217	#endif	244	#endif
218		245
219	/**/	246	/**/
220		247
221	/*	248	/*
…		…
230		257
231	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	258	#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) */	259	#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 */	260	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
234		261
235	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
236	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
237	# define noinline __attribute__ ((noinline))	264	# define noinline __attribute__ ((noinline))
238	#else	265	#else
239	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
240	# define noinline	267	# define noinline
…		…
261		288
262	typedef ev_watcher *W;	289	typedef ev_watcher *W;
263	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
264	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
265		292
		293	#if EV_USE_MONOTONIC
		294	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		295	/* giving it a reasonably high chance of working on typical architetcures */
266	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
267		298
268	#ifdef _WIN32	299	#ifdef _WIN32
269	# include "ev_win32.c"	300	# include "ev_win32.c"
270	#endif	301	#endif
271		302
…		…
407	{	438	{
408	return ev_rt_now;	439	return ev_rt_now;
409	}	440	}
410	#endif	441	#endif
411		442
		443	void
		444	ev_sleep (ev_tstamp delay)
		445	{
		446	if (delay > 0.)
		447	{
		448	#if EV_USE_NANOSLEEP
		449	struct timespec ts;
		450
		451	ts.tv_sec = (time_t)delay;
		452	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		453
		454	nanosleep (&ts, 0);
		455	#elif defined(_WIN32)
		456	Sleep (delay * 1e3);
		457	#else
		458	struct timeval tv;
		459
		460	tv.tv_sec = (time_t)delay;
		461	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		462
		463	select (0, 0, 0, 0, &tv);
		464	#endif
		465	}
		466	}
		467
		468	/*****************************************************************************/
		469
412	int inline_size	470	int inline_size
413	array_nextsize (int elem, int cur, int cnt)	471	array_nextsize (int elem, int cur, int cnt)
414	{	472	{
415	int ncur = cur + 1;	473	int ncur = cur + 1;
416		474
…		…
476	pendings [pri][w_->pending - 1].w = w_;	534	pendings [pri][w_->pending - 1].w = w_;
477	pendings [pri][w_->pending - 1].events = revents;	535	pendings [pri][w_->pending - 1].events = revents;
478	}	536	}
479	}	537	}
480		538
481	void inline_size	539	void inline_speed
482	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
483	{	541	{
484	int i;	542	int i;
485		543
486	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
533	{	591	{
534	int fd = fdchanges [i];	592	int fd = fdchanges [i];
535	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
536	ev_io *w;	594	ev_io *w;
537		595
538	int events = 0;	596	unsigned char events = 0;
539		597
540	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	598	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
541	events \|= w->events;	599	events \|= (unsigned char)w->events;
542		600
543	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
544	if (events)	602	if (events)
545	{	603	{
546	unsigned long argp;	604	unsigned long argp;
		605	#ifdef EV_FD_TO_WIN32_HANDLE
		606	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		607	#else
547	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
548	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	610	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
549	}	611	}
550	#endif	612	#endif
551		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
552	anfd->reify = 0;	618	anfd->reify = 0;
553
554	backend_modify (EV_A_ fd, anfd->events, events);
555	anfd->events = events;	619	anfd->events = events;
		620
		621	if (o_events != events \|\| o_reify & EV_IOFDSET)
		622	backend_modify (EV_A_ fd, o_events, events);
		623	}
556	}	624	}
557		625
558	fdchangecnt = 0;	626	fdchangecnt = 0;
559	}	627	}
560		628
561	void inline_size	629	void inline_size
562	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
563	{	631	{
564	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
565	return;
566
567	anfds [fd].reify = 1;	633	anfds [fd].reify \|= flags;
568		634
		635	if (expect_true (!reify))
		636	{
569	++fdchangecnt;	637	++fdchangecnt;
570	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
571	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
572	}	641	}
573		642
574	void inline_speed	643	void inline_speed
575	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
576	{	645	{
…		…
627		696
628	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
629	if (anfds [fd].events)	698	if (anfds [fd].events)
630	{	699	{
631	anfds [fd].events = 0;	700	anfds [fd].events = 0;
632	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
633	}	702	}
634	}	703	}
635		704
636	/*****************************************************************************/	705	/*****************************************************************************/
637		706
638	void inline_speed	707	void inline_speed
639	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
640	{	709	{
641	WT w = heap [k];	710	WT w = heap [k];
642		711
643	while (k && heap [k >> 1]->at > w->at)	712	while (k)
644	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
645	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
646	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
647	k >>= 1;	721	k = p;
648	}	722	}
649		723
650	heap [k] = w;	724	heap [k] = w;
651	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
652
653	}	726	}
654		727
655	void inline_speed	728	void inline_speed
656	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
657	{	730	{
658	WT w = heap [k];	731	WT w = heap [k];
659		732
660	while (k < (N >> 1))	733	for (;;)
661	{	734	{
662	int j = k << 1;	735	int c = (k << 1) + 1;
663		736
664	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
665	++j;
666
667	if (w->at <= heap [j]->at)
668	break;	738	break;
669		739
		740	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		741	? 1 : 0;
		742
		743	if (w->at <= heap [c]->at)
		744	break;
		745
670	heap [k] = heap [j];	746	heap [k] = heap [c];
671	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
672	k = j;	749	k = c;
673	}	750	}
674		751
675	heap [k] = w;	752	heap [k] = w;
676	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
677	}	754	}
…		…
686	/*****************************************************************************/	763	/*****************************************************************************/
687		764
688	typedef struct	765	typedef struct
689	{	766	{
690	WL head;	767	WL head;
691	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
692	} ANSIG;	769	} ANSIG;
693		770
694	static ANSIG *signals;	771	static ANSIG *signals;
695	static int signalmax;	772	static int signalmax;
696		773
697	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
698	static sig_atomic_t volatile gotsig;
699	static ev_io sigev;
700		775
701	void inline_size	776	void inline_size
702	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
703	{	778	{
704	while (count--)	779	while (count--)
…		…
708		783
709	++base;	784	++base;
710	}	785	}
711	}	786	}
712		787
713	static void	788	/*****************************************************************************/
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		789
764	void inline_speed	790	void inline_speed
765	fd_intern (int fd)	791	fd_intern (int fd)
766	{	792	{
767	#ifdef _WIN32	793	#ifdef _WIN32
…		…
772	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
773	#endif	799	#endif
774	}	800	}
775		801
776	static void noinline	802	static void noinline
777	siginit (EV_P)	803	evpipe_init (EV_P)
778	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
779	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
780	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
781		812
782	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
783	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
784	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* watcher should not keep loop alive */
		816	}
		817	}
		818
		819	void inline_size
		820	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		821	{
		822	if (!*flag)
		823	{
		824	int old_errno = errno; /* save errno because write might clobber it */
		825
		826	*flag = 1;
		827	write (evpipe [1], &old_errno, 1);
		828
		829	errno = old_errno;
		830	}
		831	}
		832
		833	static void
		834	pipecb (EV_P_ ev_io *iow, int revents)
		835	{
		836	{
		837	int dummy;
		838	read (evpipe [0], &dummy, 1);
		839	}
		840
		841	if (gotsig && ev_is_default_loop (EV_A))
		842	{
		843	int signum;
		844	gotsig = 0;
		845
		846	for (signum = signalmax; signum--; )
		847	if (signals [signum].gotsig)
		848	ev_feed_signal_event (EV_A_ signum + 1);
		849	}
		850
		851	#if EV_ASYNC_ENABLE
		852	if (gotasync)
		853	{
		854	int i;
		855	gotasync = 0;
		856
		857	for (i = asynccnt; i--; )
		858	if (asyncs [i]->sent)
		859	{
		860	asyncs [i]->sent = 0;
		861	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		862	}
		863	}
		864	#endif
785	}	865	}
786		866
787	/*****************************************************************************/	867	/*****************************************************************************/
788		868
		869	static void
		870	sighandler (int signum)
		871	{
		872	#if EV_MULTIPLICITY
		873	struct ev_loop *loop = &default_loop_struct;
		874	#endif
		875
		876	#if _WIN32
		877	signal (signum, sighandler);
		878	#endif
		879
		880	signals [signum - 1].gotsig = 1;
		881	evpipe_write (EV_A_ &gotsig);
		882	}
		883
		884	void noinline
		885	ev_feed_signal_event (EV_P_ int signum)
		886	{
		887	WL w;
		888
		889	#if EV_MULTIPLICITY
		890	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		891	#endif
		892
		893	--signum;
		894
		895	if (signum < 0 \|\| signum >= signalmax)
		896	return;
		897
		898	signals [signum].gotsig = 0;
		899
		900	for (w = signals [signum].head; w; w = w->next)
		901	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		902	}
		903
		904	/*****************************************************************************/
		905
789	static ev_child *childs [EV_PID_HASHSIZE];	906	static WL childs [EV_PID_HASHSIZE];
790		907
791	#ifndef _WIN32	908	#ifndef _WIN32
792		909
793	static ev_signal childev;	910	static ev_signal childev;
		911
		912	#ifndef WIFCONTINUED
		913	# define WIFCONTINUED(status) 0
		914	#endif
794		915
795	void inline_speed	916	void inline_speed
796	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	917	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
797	{	918	{
798	ev_child *w;	919	ev_child *w;
		920	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
799		921
800	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	922	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		923	{
801	if (w->pid == pid \|\| !w->pid)	924	if ((w->pid == pid \|\| !w->pid)
		925	&& (!traced \|\| (w->flags & 1)))
802	{	926	{
803	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	927	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
804	w->rpid = pid;	928	w->rpid = pid;
805	w->rstatus = status;	929	w->rstatus = status;
806	ev_feed_event (EV_A_ (W)w, EV_CHILD);	930	ev_feed_event (EV_A_ (W)w, EV_CHILD);
807	}	931	}
		932	}
808	}	933	}
809		934
810	#ifndef WCONTINUED	935	#ifndef WCONTINUED
811	# define WCONTINUED 0	936	# define WCONTINUED 0
812	#endif	937	#endif
…		…
909	}	1034	}
910		1035
911	unsigned int	1036	unsigned int
912	ev_embeddable_backends (void)	1037	ev_embeddable_backends (void)
913	{	1038	{
914	return EVBACKEND_EPOLL	1039	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
915	\| EVBACKEND_KQUEUE	1040
916	\| EVBACKEND_PORT;	1041	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1042	/* please fix it and tell me how to detect the fix */
		1043	flags &= ~EVBACKEND_EPOLL;
		1044
		1045	return flags;
917	}	1046	}
918		1047
919	unsigned int	1048	unsigned int
920	ev_backend (EV_P)	1049	ev_backend (EV_P)
921	{	1050	{
…		…
924		1053
925	unsigned int	1054	unsigned int
926	ev_loop_count (EV_P)	1055	ev_loop_count (EV_P)
927	{	1056	{
928	return loop_count;	1057	return loop_count;
		1058	}
		1059
		1060	void
		1061	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1062	{
		1063	io_blocktime = interval;
		1064	}
		1065
		1066	void
		1067	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1068	{
		1069	timeout_blocktime = interval;
929	}	1070	}
930		1071
931	static void noinline	1072	static void noinline
932	loop_init (EV_P_ unsigned int flags)	1073	loop_init (EV_P_ unsigned int flags)
933	{	1074	{
…		…
939	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1080	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
940	have_monotonic = 1;	1081	have_monotonic = 1;
941	}	1082	}
942	#endif	1083	#endif
943		1084
944	ev_rt_now = ev_time ();	1085	ev_rt_now = ev_time ();
945	mn_now = get_clock ();	1086	mn_now = get_clock ();
946	now_floor = mn_now;	1087	now_floor = mn_now;
947	rtmn_diff = ev_rt_now - mn_now;	1088	rtmn_diff = ev_rt_now - mn_now;
		1089
		1090	io_blocktime = 0.;
		1091	timeout_blocktime = 0.;
		1092	backend = 0;
		1093	backend_fd = -1;
		1094	gotasync = 0;
		1095	#if EV_USE_INOTIFY
		1096	fs_fd = -2;
		1097	#endif
948		1098
949	/* pid check not overridable via env */	1099	/* pid check not overridable via env */
950	#ifndef _WIN32	1100	#ifndef _WIN32
951	if (flags & EVFLAG_FORKCHECK)	1101	if (flags & EVFLAG_FORKCHECK)
952	curpid = getpid ();	1102	curpid = getpid ();
…		…
958	flags = atoi (getenv ("LIBEV_FLAGS"));	1108	flags = atoi (getenv ("LIBEV_FLAGS"));
959		1109
960	if (!(flags & 0x0000ffffUL))	1110	if (!(flags & 0x0000ffffUL))
961	flags \|= ev_recommended_backends ();	1111	flags \|= ev_recommended_backends ();
962		1112
963	backend = 0;
964	backend_fd = -1;
965	#if EV_USE_INOTIFY
966	fs_fd = -2;
967	#endif
968
969	#if EV_USE_PORT	1113	#if EV_USE_PORT
970	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1114	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
971	#endif	1115	#endif
972	#if EV_USE_KQUEUE	1116	#if EV_USE_KQUEUE
973	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1117	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
980	#endif	1124	#endif
981	#if EV_USE_SELECT	1125	#if EV_USE_SELECT
982	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1126	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
983	#endif	1127	#endif
984		1128
985	ev_init (&sigev, sigcb);	1129	ev_init (&pipeev, pipecb);
986	ev_set_priority (&sigev, EV_MAXPRI);	1130	ev_set_priority (&pipeev, EV_MAXPRI);
987	}	1131	}
988	}	1132	}
989		1133
990	static void noinline	1134	static void noinline
991	loop_destroy (EV_P)	1135	loop_destroy (EV_P)
992	{	1136	{
993	int i;	1137	int i;
		1138
		1139	if (ev_is_active (&pipeev))
		1140	{
		1141	ev_ref (EV_A); /* signal watcher */
		1142	ev_io_stop (EV_A_ &pipeev);
		1143
		1144	close (evpipe [0]); evpipe [0] = 0;
		1145	close (evpipe [1]); evpipe [1] = 0;
		1146	}
994		1147
995	#if EV_USE_INOTIFY	1148	#if EV_USE_INOTIFY
996	if (fs_fd >= 0)	1149	if (fs_fd >= 0)
997	close (fs_fd);	1150	close (fs_fd);
998	#endif	1151	#endif
…		…
1021	array_free (pending, [i]);	1174	array_free (pending, [i]);
1022	#if EV_IDLE_ENABLE	1175	#if EV_IDLE_ENABLE
1023	array_free (idle, [i]);	1176	array_free (idle, [i]);
1024	#endif	1177	#endif
1025	}	1178	}
		1179
		1180	ev_free (anfds); anfdmax = 0;
1026		1181
1027	/* have to use the microsoft-never-gets-it-right macro */	1182	/* have to use the microsoft-never-gets-it-right macro */
1028	array_free (fdchange, EMPTY);	1183	array_free (fdchange, EMPTY);
1029	array_free (timer, EMPTY);	1184	array_free (timer, EMPTY);
1030	#if EV_PERIODIC_ENABLE	1185	#if EV_PERIODIC_ENABLE
1031	array_free (periodic, EMPTY);	1186	array_free (periodic, EMPTY);
1032	#endif	1187	#endif
		1188	#if EV_FORK_ENABLE
		1189	array_free (fork, EMPTY);
		1190	#endif
1033	array_free (prepare, EMPTY);	1191	array_free (prepare, EMPTY);
1034	array_free (check, EMPTY);	1192	array_free (check, EMPTY);
		1193	#if EV_ASYNC_ENABLE
		1194	array_free (async, EMPTY);
		1195	#endif
1035		1196
1036	backend = 0;	1197	backend = 0;
1037	}	1198	}
1038		1199
1039	void inline_size infy_fork (EV_P);	1200	void inline_size infy_fork (EV_P);
…		…
1052	#endif	1213	#endif
1053	#if EV_USE_INOTIFY	1214	#if EV_USE_INOTIFY
1054	infy_fork (EV_A);	1215	infy_fork (EV_A);
1055	#endif	1216	#endif
1056		1217
1057	if (ev_is_active (&sigev))	1218	if (ev_is_active (&pipeev))
1058	{	1219	{
1059	/* default loop */	1220	/* this "locks" the handlers against writing to the pipe */
		1221	/* while we modify the fd vars */
		1222	gotsig = 1;
		1223	#if EV_ASYNC_ENABLE
		1224	gotasync = 1;
		1225	#endif
1060		1226
1061	ev_ref (EV_A);	1227	ev_ref (EV_A);
1062	ev_io_stop (EV_A_ &sigev);	1228	ev_io_stop (EV_A_ &pipeev);
1063	close (sigpipe [0]);	1229	close (evpipe [0]);
1064	close (sigpipe [1]);	1230	close (evpipe [1]);
1065		1231
1066	while (pipe (sigpipe))
1067	syserr ("(libev) error creating pipe");
1068
1069	siginit (EV_A);	1232	evpipe_init (EV_A);
		1233	/* now iterate over everything, in case we missed something */
		1234	pipecb (EV_A_ &pipeev, EV_READ);
1070	}	1235	}
1071		1236
1072	postfork = 0;	1237	postfork = 0;
1073	}	1238	}
1074		1239
…		…
1096	}	1261	}
1097		1262
1098	void	1263	void
1099	ev_loop_fork (EV_P)	1264	ev_loop_fork (EV_P)
1100	{	1265	{
1101	postfork = 1;	1266	postfork = 1; /* must be in line with ev_default_fork */
1102	}	1267	}
1103		1268
1104	#endif	1269	#endif
1105		1270
1106	#if EV_MULTIPLICITY	1271	#if EV_MULTIPLICITY
…		…
1109	#else	1274	#else
1110	int	1275	int
1111	ev_default_loop (unsigned int flags)	1276	ev_default_loop (unsigned int flags)
1112	#endif	1277	#endif
1113	{	1278	{
1114	if (sigpipe [0] == sigpipe [1])
1115	if (pipe (sigpipe))
1116	return 0;
1117
1118	if (!ev_default_loop_ptr)	1279	if (!ev_default_loop_ptr)
1119	{	1280	{
1120	#if EV_MULTIPLICITY	1281	#if EV_MULTIPLICITY
1121	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1282	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1122	#else	1283	#else
…		…
1125		1286
1126	loop_init (EV_A_ flags);	1287	loop_init (EV_A_ flags);
1127		1288
1128	if (ev_backend (EV_A))	1289	if (ev_backend (EV_A))
1129	{	1290	{
1130	siginit (EV_A);
1131
1132	#ifndef _WIN32	1291	#ifndef _WIN32
1133	ev_signal_init (&childev, childcb, SIGCHLD);	1292	ev_signal_init (&childev, childcb, SIGCHLD);
1134	ev_set_priority (&childev, EV_MAXPRI);	1293	ev_set_priority (&childev, EV_MAXPRI);
1135	ev_signal_start (EV_A_ &childev);	1294	ev_signal_start (EV_A_ &childev);
1136	ev_unref (EV_A); /* child watcher should not keep loop alive */	1295	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1153	#ifndef _WIN32	1312	#ifndef _WIN32
1154	ev_ref (EV_A); /* child watcher */	1313	ev_ref (EV_A); /* child watcher */
1155	ev_signal_stop (EV_A_ &childev);	1314	ev_signal_stop (EV_A_ &childev);
1156	#endif	1315	#endif
1157		1316
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);	1317	loop_destroy (EV_A);
1165	}	1318	}
1166		1319
1167	void	1320	void
1168	ev_default_fork (void)	1321	ev_default_fork (void)
…		…
1170	#if EV_MULTIPLICITY	1323	#if EV_MULTIPLICITY
1171	struct ev_loop *loop = ev_default_loop_ptr;	1324	struct ev_loop *loop = ev_default_loop_ptr;
1172	#endif	1325	#endif
1173		1326
1174	if (backend)	1327	if (backend)
1175	postfork = 1;	1328	postfork = 1; /* must be in line with ev_loop_fork */
1176	}	1329	}
1177		1330
1178	/*****************************************************************************/	1331	/*****************************************************************************/
1179		1332
1180	void	1333	void
…		…
1206	void inline_size	1359	void inline_size
1207	timers_reify (EV_P)	1360	timers_reify (EV_P)
1208	{	1361	{
1209	while (timercnt && ((WT)timers [0])->at <= mn_now)	1362	while (timercnt && ((WT)timers [0])->at <= mn_now)
1210	{	1363	{
1211	ev_timer *w = timers [0];	1364	ev_timer w = (ev_timer )timers [0];
1212		1365
1213	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1366	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1214		1367
1215	/* first reschedule or stop timer */	1368	/* first reschedule or stop timer */
1216	if (w->repeat)	1369	if (w->repeat)
…		…
1219		1372
1220	((WT)w)->at += w->repeat;	1373	((WT)w)->at += w->repeat;
1221	if (((WT)w)->at < mn_now)	1374	if (((WT)w)->at < mn_now)
1222	((WT)w)->at = mn_now;	1375	((WT)w)->at = mn_now;
1223		1376
1224	downheap ((WT *)timers, timercnt, 0);	1377	downheap (timers, timercnt, 0);
1225	}	1378	}
1226	else	1379	else
1227	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1380	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1228		1381
1229	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1382	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1234	void inline_size	1387	void inline_size
1235	periodics_reify (EV_P)	1388	periodics_reify (EV_P)
1236	{	1389	{
1237	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1390	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1238	{	1391	{
1239	ev_periodic *w = periodics [0];	1392	ev_periodic w = (ev_periodic )periodics [0];
1240		1393
1241	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1394	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1242		1395
1243	/* first reschedule or stop timer */	1396	/* first reschedule or stop timer */
1244	if (w->reschedule_cb)	1397	if (w->reschedule_cb)
1245	{	1398	{
1246	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1399	((WT)w)->at = 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));	1400	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1248	downheap ((WT *)periodics, periodiccnt, 0);	1401	downheap (periodics, periodiccnt, 0);
1249	}	1402	}
1250	else if (w->interval)	1403	else if (w->interval)
1251	{	1404	{
1252	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1405	((WT)w)->at = 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;	1406	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));	1407	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);	1408	downheap (periodics, periodiccnt, 0);
1256	}	1409	}
1257	else	1410	else
1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1411	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259		1412
1260	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1413	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1267	int i;	1420	int i;
1268		1421
1269	/* adjust periodics after time jump */	1422	/* adjust periodics after time jump */
1270	for (i = 0; i < periodiccnt; ++i)	1423	for (i = 0; i < periodiccnt; ++i)
1271	{	1424	{
1272	ev_periodic *w = periodics [i];	1425	ev_periodic w = (ev_periodic )periodics [i];
1273		1426
1274	if (w->reschedule_cb)	1427	if (w->reschedule_cb)
1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1428	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276	else if (w->interval)	1429	else if (w->interval)
1277	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1430	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278	}	1431	}
1279		1432
1280	/* now rebuild the heap */	1433	/* now rebuild the heap */
1281	for (i = periodiccnt >> 1; i--; )	1434	for (i = periodiccnt >> 1; i--; )
1282	downheap ((WT *)periodics, periodiccnt, i);	1435	downheap (periodics, periodiccnt, i);
1283	}	1436	}
1284	#endif	1437	#endif
1285		1438
1286	#if EV_IDLE_ENABLE	1439	#if EV_IDLE_ENABLE
1287	void inline_size	1440	void inline_size
…		…
1435	/* update fd-related kernel structures */	1588	/* update fd-related kernel structures */
1436	fd_reify (EV_A);	1589	fd_reify (EV_A);
1437		1590
1438	/* calculate blocking time */	1591	/* calculate blocking time */
1439	{	1592	{
1440	ev_tstamp block;	1593	ev_tstamp waittime = 0.;
		1594	ev_tstamp sleeptime = 0.;
1441		1595
1442	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1596	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1443	block = 0.; /* do not block at all */
1444	else
1445	{	1597	{
1446	/* update time to cancel out callback processing overhead */	1598	/* update time to cancel out callback processing overhead */
1447	time_update (EV_A_ 1e100);	1599	time_update (EV_A_ 1e100);
1448		1600
1449	block = MAX_BLOCKTIME;	1601	waittime = MAX_BLOCKTIME;
1450		1602
1451	if (timercnt)	1603	if (timercnt)
1452	{	1604	{
1453	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1605	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1454	if (block > to) block = to;	1606	if (waittime > to) waittime = to;
1455	}	1607	}
1456		1608
1457	#if EV_PERIODIC_ENABLE	1609	#if EV_PERIODIC_ENABLE
1458	if (periodiccnt)	1610	if (periodiccnt)
1459	{	1611	{
1460	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1612	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1461	if (block > to) block = to;	1613	if (waittime > to) waittime = to;
1462	}	1614	}
1463	#endif	1615	#endif
1464		1616
1465	if (expect_false (block < 0.)) block = 0.;	1617	if (expect_false (waittime < timeout_blocktime))
		1618	waittime = timeout_blocktime;
		1619
		1620	sleeptime = waittime - backend_fudge;
		1621
		1622	if (expect_true (sleeptime > io_blocktime))
		1623	sleeptime = io_blocktime;
		1624
		1625	if (sleeptime)
		1626	{
		1627	ev_sleep (sleeptime);
		1628	waittime -= sleeptime;
		1629	}
1466	}	1630	}
1467		1631
1468	++loop_count;	1632	++loop_count;
1469	backend_poll (EV_A_ block);	1633	backend_poll (EV_A_ waittime);
1470		1634
1471	/* update ev_rt_now, do magic */	1635	/* update ev_rt_now, do magic */
1472	time_update (EV_A_ block);	1636	time_update (EV_A_ waittime + sleeptime);
1473	}	1637	}
1474		1638
1475	/* queue pending timers and reschedule them */	1639	/* queue pending timers and reschedule them */
1476	timers_reify (EV_A); /* relative timers called last */	1640	timers_reify (EV_A); /* relative timers called last */
1477	#if EV_PERIODIC_ENABLE	1641	#if EV_PERIODIC_ENABLE
…		…
1589		1753
1590	assert (("ev_io_start called with negative fd", fd >= 0));	1754	assert (("ev_io_start called with negative fd", fd >= 0));
1591		1755
1592	ev_start (EV_A_ (W)w, 1);	1756	ev_start (EV_A_ (W)w, 1);
1593	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1757	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1594	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1758	wlist_add (&anfds[fd].head, (WL)w);
1595		1759
1596	fd_change (EV_A_ fd);	1760	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1761	w->events &= ~EV_IOFDSET;
1597	}	1762	}
1598		1763
1599	void noinline	1764	void noinline
1600	ev_io_stop (EV_P_ ev_io *w)	1765	ev_io_stop (EV_P_ ev_io *w)
1601	{	1766	{
…		…
1603	if (expect_false (!ev_is_active (w)))	1768	if (expect_false (!ev_is_active (w)))
1604	return;	1769	return;
1605		1770
1606	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1771	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1607		1772
1608	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1773	wlist_del (&anfds[w->fd].head, (WL)w);
1609	ev_stop (EV_A_ (W)w);	1774	ev_stop (EV_A_ (W)w);
1610		1775
1611	fd_change (EV_A_ w->fd);	1776	fd_change (EV_A_ w->fd, 1);
1612	}	1777	}
1613		1778
1614	void noinline	1779	void noinline
1615	ev_timer_start (EV_P_ ev_timer *w)	1780	ev_timer_start (EV_P_ ev_timer *w)
1616	{	1781	{
…		…
1620	((WT)w)->at += mn_now;	1785	((WT)w)->at += mn_now;
1621		1786
1622	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1787	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1623		1788
1624	ev_start (EV_A_ (W)w, ++timercnt);	1789	ev_start (EV_A_ (W)w, ++timercnt);
1625	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1790	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1626	timers [timercnt - 1] = w;	1791	timers [timercnt - 1] = (WT)w;
1627	upheap ((WT *)timers, timercnt - 1);	1792	upheap (timers, timercnt - 1);
1628		1793
1629	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1794	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1630	}	1795	}
1631		1796
1632	void noinline	1797	void noinline
…		…
1634	{	1799	{
1635	clear_pending (EV_A_ (W)w);	1800	clear_pending (EV_A_ (W)w);
1636	if (expect_false (!ev_is_active (w)))	1801	if (expect_false (!ev_is_active (w)))
1637	return;	1802	return;
1638		1803
1639	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1804	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1640		1805
1641	{	1806	{
1642	int active = ((W)w)->active;	1807	int active = ((W)w)->active;
1643		1808
1644	if (expect_true (--active < --timercnt))	1809	if (expect_true (--active < --timercnt))
1645	{	1810	{
1646	timers [active] = timers [timercnt];	1811	timers [active] = timers [timercnt];
1647	adjustheap ((WT *)timers, timercnt, active);	1812	adjustheap (timers, timercnt, active);
1648	}	1813	}
1649	}	1814	}
1650		1815
1651	((WT)w)->at -= mn_now;	1816	((WT)w)->at -= mn_now;
1652		1817
…		…
1659	if (ev_is_active (w))	1824	if (ev_is_active (w))
1660	{	1825	{
1661	if (w->repeat)	1826	if (w->repeat)
1662	{	1827	{
1663	((WT)w)->at = mn_now + w->repeat;	1828	((WT)w)->at = mn_now + w->repeat;
1664	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1829	adjustheap (timers, timercnt, ((W)w)->active - 1);
1665	}	1830	}
1666	else	1831	else
1667	ev_timer_stop (EV_A_ w);	1832	ev_timer_stop (EV_A_ w);
1668	}	1833	}
1669	else if (w->repeat)	1834	else if (w->repeat)
…		…
1690	}	1855	}
1691	else	1856	else
1692	((WT)w)->at = w->offset;	1857	((WT)w)->at = w->offset;
1693		1858
1694	ev_start (EV_A_ (W)w, ++periodiccnt);	1859	ev_start (EV_A_ (W)w, ++periodiccnt);
1695	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1860	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1696	periodics [periodiccnt - 1] = w;	1861	periodics [periodiccnt - 1] = (WT)w;
1697	upheap ((WT *)periodics, periodiccnt - 1);	1862	upheap (periodics, periodiccnt - 1);
1698		1863
1699	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1864	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1700	}	1865	}
1701		1866
1702	void noinline	1867	void noinline
…		…
1704	{	1869	{
1705	clear_pending (EV_A_ (W)w);	1870	clear_pending (EV_A_ (W)w);
1706	if (expect_false (!ev_is_active (w)))	1871	if (expect_false (!ev_is_active (w)))
1707	return;	1872	return;
1708		1873
1709	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1874	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1710		1875
1711	{	1876	{
1712	int active = ((W)w)->active;	1877	int active = ((W)w)->active;
1713		1878
1714	if (expect_true (--active < --periodiccnt))	1879	if (expect_true (--active < --periodiccnt))
1715	{	1880	{
1716	periodics [active] = periodics [periodiccnt];	1881	periodics [active] = periodics [periodiccnt];
1717	adjustheap ((WT *)periodics, periodiccnt, active);	1882	adjustheap (periodics, periodiccnt, active);
1718	}	1883	}
1719	}	1884	}
1720		1885
1721	ev_stop (EV_A_ (W)w);	1886	ev_stop (EV_A_ (W)w);
1722	}	1887	}
…		…
1743	if (expect_false (ev_is_active (w)))	1908	if (expect_false (ev_is_active (w)))
1744	return;	1909	return;
1745		1910
1746	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1911	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1747		1912
		1913	evpipe_init (EV_A);
		1914
		1915	{
		1916	#ifndef _WIN32
		1917	sigset_t full, prev;
		1918	sigfillset (&full);
		1919	sigprocmask (SIG_SETMASK, &full, &prev);
		1920	#endif
		1921
		1922	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1923
		1924	#ifndef _WIN32
		1925	sigprocmask (SIG_SETMASK, &prev, 0);
		1926	#endif
		1927	}
		1928
1748	ev_start (EV_A_ (W)w, 1);	1929	ev_start (EV_A_ (W)w, 1);
1749	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1750	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1930	wlist_add (&signals [w->signum - 1].head, (WL)w);
1751		1931
1752	if (!((WL)w)->next)	1932	if (!((WL)w)->next)
1753	{	1933	{
1754	#if _WIN32	1934	#if _WIN32
1755	signal (w->signum, sighandler);	1935	signal (w->signum, sighandler);
…		…
1768	{	1948	{
1769	clear_pending (EV_A_ (W)w);	1949	clear_pending (EV_A_ (W)w);
1770	if (expect_false (!ev_is_active (w)))	1950	if (expect_false (!ev_is_active (w)))
1771	return;	1951	return;
1772		1952
1773	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1953	wlist_del (&signals [w->signum - 1].head, (WL)w);
1774	ev_stop (EV_A_ (W)w);	1954	ev_stop (EV_A_ (W)w);
1775		1955
1776	if (!signals [w->signum - 1].head)	1956	if (!signals [w->signum - 1].head)
1777	signal (w->signum, SIG_DFL);	1957	signal (w->signum, SIG_DFL);
1778	}	1958	}
…		…
1785	#endif	1965	#endif
1786	if (expect_false (ev_is_active (w)))	1966	if (expect_false (ev_is_active (w)))
1787	return;	1967	return;
1788		1968
1789	ev_start (EV_A_ (W)w, 1);	1969	ev_start (EV_A_ (W)w, 1);
1790	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1970	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1791	}	1971	}
1792		1972
1793	void	1973	void
1794	ev_child_stop (EV_P_ ev_child *w)	1974	ev_child_stop (EV_P_ ev_child *w)
1795	{	1975	{
1796	clear_pending (EV_A_ (W)w);	1976	clear_pending (EV_A_ (W)w);
1797	if (expect_false (!ev_is_active (w)))	1977	if (expect_false (!ev_is_active (w)))
1798	return;	1978	return;
1799		1979
1800	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1980	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1801	ev_stop (EV_A_ (W)w);	1981	ev_stop (EV_A_ (W)w);
1802	}	1982	}
1803		1983
1804	#if EV_STAT_ENABLE	1984	#if EV_STAT_ENABLE
1805		1985
…		…
2147		2327
2148	#if EV_EMBED_ENABLE	2328	#if EV_EMBED_ENABLE
2149	void noinline	2329	void noinline
2150	ev_embed_sweep (EV_P_ ev_embed *w)	2330	ev_embed_sweep (EV_P_ ev_embed *w)
2151	{	2331	{
2152	ev_loop (w->loop, EVLOOP_NONBLOCK);	2332	ev_loop (w->other, EVLOOP_NONBLOCK);
2153	}	2333	}
2154		2334
2155	static void	2335	static void
2156	embed_cb (EV_P_ ev_io *io, int revents)	2336	embed_io_cb (EV_P_ ev_io *io, int revents)
2157	{	2337	{
2158	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2338	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2159		2339
2160	if (ev_cb (w))	2340	if (ev_cb (w))
2161	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2341	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2162	else	2342	else
2163	ev_embed_sweep (loop, w);	2343	ev_loop (w->other, EVLOOP_NONBLOCK);
2164	}	2344	}
		2345
		2346	static void
		2347	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2348	{
		2349	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2350
		2351	{
		2352	struct ev_loop *loop = w->other;
		2353
		2354	while (fdchangecnt)
		2355	{
		2356	fd_reify (EV_A);
		2357	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2358	}
		2359	}
		2360	}
		2361
		2362	#if 0
		2363	static void
		2364	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2365	{
		2366	ev_idle_stop (EV_A_ idle);
		2367	}
		2368	#endif
2165		2369
2166	void	2370	void
2167	ev_embed_start (EV_P_ ev_embed *w)	2371	ev_embed_start (EV_P_ ev_embed *w)
2168	{	2372	{
2169	if (expect_false (ev_is_active (w)))	2373	if (expect_false (ev_is_active (w)))
2170	return;	2374	return;
2171		2375
2172	{	2376	{
2173	struct ev_loop *loop = w->loop;	2377	struct ev_loop *loop = w->other;
2174	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2378	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2175	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2379	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2176	}	2380	}
2177		2381
2178	ev_set_priority (&w->io, ev_priority (w));	2382	ev_set_priority (&w->io, ev_priority (w));
2179	ev_io_start (EV_A_ &w->io);	2383	ev_io_start (EV_A_ &w->io);
2180		2384
		2385	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2386	ev_set_priority (&w->prepare, EV_MINPRI);
		2387	ev_prepare_start (EV_A_ &w->prepare);
		2388
		2389	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2390
2181	ev_start (EV_A_ (W)w, 1);	2391	ev_start (EV_A_ (W)w, 1);
2182	}	2392	}
2183		2393
2184	void	2394	void
2185	ev_embed_stop (EV_P_ ev_embed *w)	2395	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2187	clear_pending (EV_A_ (W)w);	2397	clear_pending (EV_A_ (W)w);
2188	if (expect_false (!ev_is_active (w)))	2398	if (expect_false (!ev_is_active (w)))
2189	return;	2399	return;
2190		2400
2191	ev_io_stop (EV_A_ &w->io);	2401	ev_io_stop (EV_A_ &w->io);
		2402	ev_prepare_stop (EV_A_ &w->prepare);
2192		2403
2193	ev_stop (EV_A_ (W)w);	2404	ev_stop (EV_A_ (W)w);
2194	}	2405	}
2195	#endif	2406	#endif
2196		2407
…		…
2221		2432
2222	ev_stop (EV_A_ (W)w);	2433	ev_stop (EV_A_ (W)w);
2223	}	2434	}
2224	#endif	2435	#endif
2225		2436
		2437	#if EV_ASYNC_ENABLE
		2438	void
		2439	ev_async_start (EV_P_ ev_async *w)
		2440	{
		2441	if (expect_false (ev_is_active (w)))
		2442	return;
		2443
		2444	evpipe_init (EV_A);
		2445
		2446	ev_start (EV_A_ (W)w, ++asynccnt);
		2447	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2448	asyncs [asynccnt - 1] = w;
		2449	}
		2450
		2451	void
		2452	ev_async_stop (EV_P_ ev_async *w)
		2453	{
		2454	clear_pending (EV_A_ (W)w);
		2455	if (expect_false (!ev_is_active (w)))
		2456	return;
		2457
		2458	{
		2459	int active = ((W)w)->active;
		2460	asyncs [active - 1] = asyncs [--asynccnt];
		2461	((W)asyncs [active - 1])->active = active;
		2462	}
		2463
		2464	ev_stop (EV_A_ (W)w);
		2465	}
		2466
		2467	void
		2468	ev_async_send (EV_P_ ev_async *w)
		2469	{
		2470	w->sent = 1;
		2471	evpipe_write (EV_A_ &gotasync);
		2472	}
		2473	#endif
		2474
2226	/*****************************************************************************/	2475	/*****************************************************************************/
2227		2476
2228	struct ev_once	2477	struct ev_once
2229	{	2478	{
2230	ev_io io;	2479	ev_io io;
…		…
2285	ev_timer_set (&once->to, timeout, 0.);	2534	ev_timer_set (&once->to, timeout, 0.);
2286	ev_timer_start (EV_A_ &once->to);	2535	ev_timer_start (EV_A_ &once->to);
2287	}	2536	}
2288	}	2537	}
2289		2538
		2539	#if EV_MULTIPLICITY
		2540	#include "ev_wrap.h"
		2541	#endif
		2542
2290	#ifdef __cplusplus	2543	#ifdef __cplusplus
2291	}	2544	}
2292	#endif	2545	#endif
2293		2546

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.178 by root, Tue Dec 11 18:36:11 2007 UTC vs. Revision 1.215 by ayin, Thu Feb 21 10:34:15 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.178 by root, Tue Dec 11 18:36:11 2007 UTC vs.
Revision 1.215 by ayin, Thu Feb 21 10:34:15 2008 UTC