[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 1.212 by root, Tue Feb 19 19:01:13 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_ int sig, int async)
		821	{
		822	if (!(gotasync \|\| gotsig))
		823	{
		824	int old_errno = errno; /* save errno becaue write might clobber it */
		825
		826	if (sig) gotsig = 1;
		827	if (async) gotasync = 1;
		828
		829	write (evpipe [1], &old_errno, 1);
		830
		831	errno = old_errno;
		832	}
		833	}
		834
		835	static void
		836	pipecb (EV_P_ ev_io *iow, int revents)
		837	{
		838	{
		839	int dummy;
		840	read (evpipe [0], &dummy, 1);
		841	}
		842
		843	if (gotsig && ev_is_default_loop (EV_A))
		844	{
		845	int signum;
		846	gotsig = 0;
		847
		848	for (signum = signalmax; signum--; )
		849	if (signals [signum].gotsig)
		850	ev_feed_signal_event (EV_A_ signum + 1);
		851	}
		852
		853	#if EV_ASYNC_ENABLE
		854	if (gotasync)
		855	{
		856	int i;
		857	gotasync = 0;
		858
		859	for (i = asynccnt; i--; )
		860	if (asyncs [i]->sent)
		861	{
		862	asyncs [i]->sent = 0;
		863	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		864	}
		865	}
		866	#endif
785	}	867	}
786		868
787	/*****************************************************************************/	869	/*****************************************************************************/
788		870
		871	static void
		872	sighandler (int signum)
		873	{
		874	#if EV_MULTIPLICITY
		875	struct ev_loop *loop = &default_loop_struct;
		876	#endif
		877
		878	#if _WIN32
		879	signal (signum, sighandler);
		880	#endif
		881
		882	signals [signum - 1].gotsig = 1;
		883	evpipe_write (EV_A_ 1, 0);
		884	}
		885
		886	void noinline
		887	ev_feed_signal_event (EV_P_ int signum)
		888	{
		889	WL w;
		890
		891	#if EV_MULTIPLICITY
		892	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		893	#endif
		894
		895	--signum;
		896
		897	if (signum < 0 \|\| signum >= signalmax)
		898	return;
		899
		900	signals [signum].gotsig = 0;
		901
		902	for (w = signals [signum].head; w; w = w->next)
		903	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		904	}
		905
		906	/*****************************************************************************/
		907
789	static ev_child *childs [EV_PID_HASHSIZE];	908	static WL childs [EV_PID_HASHSIZE];
790		909
791	#ifndef _WIN32	910	#ifndef _WIN32
792		911
793	static ev_signal childev;	912	static ev_signal childev;
		913
		914	#ifndef WIFCONTINUED
		915	# define WIFCONTINUED(status) 0
		916	#endif
794		917
795	void inline_speed	918	void inline_speed
796	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	919	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
797	{	920	{
798	ev_child *w;	921	ev_child *w;
		922	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
799		923
800	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	924	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		925	{
801	if (w->pid == pid \|\| !w->pid)	926	if ((w->pid == pid \|\| !w->pid)
		927	&& (!traced \|\| (w->flags & 1)))
802	{	928	{
803	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	929	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
804	w->rpid = pid;	930	w->rpid = pid;
805	w->rstatus = status;	931	w->rstatus = status;
806	ev_feed_event (EV_A_ (W)w, EV_CHILD);	932	ev_feed_event (EV_A_ (W)w, EV_CHILD);
807	}	933	}
		934	}
808	}	935	}
809		936
810	#ifndef WCONTINUED	937	#ifndef WCONTINUED
811	# define WCONTINUED 0	938	# define WCONTINUED 0
812	#endif	939	#endif
…		…
909	}	1036	}
910		1037
911	unsigned int	1038	unsigned int
912	ev_embeddable_backends (void)	1039	ev_embeddable_backends (void)
913	{	1040	{
914	return EVBACKEND_EPOLL	1041	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
915	\| EVBACKEND_KQUEUE	1042
916	\| EVBACKEND_PORT;	1043	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1044	/* please fix it and tell me how to detect the fix */
		1045	flags &= ~EVBACKEND_EPOLL;
		1046
		1047	return flags;
917	}	1048	}
918		1049
919	unsigned int	1050	unsigned int
920	ev_backend (EV_P)	1051	ev_backend (EV_P)
921	{	1052	{
…		…
924		1055
925	unsigned int	1056	unsigned int
926	ev_loop_count (EV_P)	1057	ev_loop_count (EV_P)
927	{	1058	{
928	return loop_count;	1059	return loop_count;
		1060	}
		1061
		1062	void
		1063	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1064	{
		1065	io_blocktime = interval;
		1066	}
		1067
		1068	void
		1069	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1070	{
		1071	timeout_blocktime = interval;
929	}	1072	}
930		1073
931	static void noinline	1074	static void noinline
932	loop_init (EV_P_ unsigned int flags)	1075	loop_init (EV_P_ unsigned int flags)
933	{	1076	{
…		…
939	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1082	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
940	have_monotonic = 1;	1083	have_monotonic = 1;
941	}	1084	}
942	#endif	1085	#endif
943		1086
944	ev_rt_now = ev_time ();	1087	ev_rt_now = ev_time ();
945	mn_now = get_clock ();	1088	mn_now = get_clock ();
946	now_floor = mn_now;	1089	now_floor = mn_now;
947	rtmn_diff = ev_rt_now - mn_now;	1090	rtmn_diff = ev_rt_now - mn_now;
		1091
		1092	io_blocktime = 0.;
		1093	timeout_blocktime = 0.;
		1094	backend = 0;
		1095	backend_fd = -1;
		1096	gotasync = 0;
		1097	#if EV_USE_INOTIFY
		1098	fs_fd = -2;
		1099	#endif
948		1100
949	/* pid check not overridable via env */	1101	/* pid check not overridable via env */
950	#ifndef _WIN32	1102	#ifndef _WIN32
951	if (flags & EVFLAG_FORKCHECK)	1103	if (flags & EVFLAG_FORKCHECK)
952	curpid = getpid ();	1104	curpid = getpid ();
…		…
958	flags = atoi (getenv ("LIBEV_FLAGS"));	1110	flags = atoi (getenv ("LIBEV_FLAGS"));
959		1111
960	if (!(flags & 0x0000ffffUL))	1112	if (!(flags & 0x0000ffffUL))
961	flags \|= ev_recommended_backends ();	1113	flags \|= ev_recommended_backends ();
962		1114
963	backend = 0;
964	backend_fd = -1;
965	#if EV_USE_INOTIFY
966	fs_fd = -2;
967	#endif
968
969	#if EV_USE_PORT	1115	#if EV_USE_PORT
970	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1116	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
971	#endif	1117	#endif
972	#if EV_USE_KQUEUE	1118	#if EV_USE_KQUEUE
973	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1119	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
980	#endif	1126	#endif
981	#if EV_USE_SELECT	1127	#if EV_USE_SELECT
982	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1128	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
983	#endif	1129	#endif
984		1130
985	ev_init (&sigev, sigcb);	1131	ev_init (&pipeev, pipecb);
986	ev_set_priority (&sigev, EV_MAXPRI);	1132	ev_set_priority (&pipeev, EV_MAXPRI);
987	}	1133	}
988	}	1134	}
989		1135
990	static void noinline	1136	static void noinline
991	loop_destroy (EV_P)	1137	loop_destroy (EV_P)
992	{	1138	{
993	int i;	1139	int i;
		1140
		1141	if (ev_is_active (&pipeev))
		1142	{
		1143	ev_ref (EV_A); /* signal watcher */
		1144	ev_io_stop (EV_A_ &pipeev);
		1145
		1146	close (evpipe [0]); evpipe [0] = 0;
		1147	close (evpipe [1]); evpipe [1] = 0;
		1148	}
994		1149
995	#if EV_USE_INOTIFY	1150	#if EV_USE_INOTIFY
996	if (fs_fd >= 0)	1151	if (fs_fd >= 0)
997	close (fs_fd);	1152	close (fs_fd);
998	#endif	1153	#endif
…		…
1021	array_free (pending, [i]);	1176	array_free (pending, [i]);
1022	#if EV_IDLE_ENABLE	1177	#if EV_IDLE_ENABLE
1023	array_free (idle, [i]);	1178	array_free (idle, [i]);
1024	#endif	1179	#endif
1025	}	1180	}
		1181
		1182	ev_free (anfds); anfdmax = 0;
1026		1183
1027	/* have to use the microsoft-never-gets-it-right macro */	1184	/* have to use the microsoft-never-gets-it-right macro */
1028	array_free (fdchange, EMPTY);	1185	array_free (fdchange, EMPTY);
1029	array_free (timer, EMPTY);	1186	array_free (timer, EMPTY);
1030	#if EV_PERIODIC_ENABLE	1187	#if EV_PERIODIC_ENABLE
1031	array_free (periodic, EMPTY);	1188	array_free (periodic, EMPTY);
1032	#endif	1189	#endif
		1190	#if EV_FORK_ENABLE
		1191	array_free (fork, EMPTY);
		1192	#endif
1033	array_free (prepare, EMPTY);	1193	array_free (prepare, EMPTY);
1034	array_free (check, EMPTY);	1194	array_free (check, EMPTY);
		1195	#if EV_ASYNC_ENABLE
		1196	array_free (async, EMPTY);
		1197	#endif
1035		1198
1036	backend = 0;	1199	backend = 0;
1037	}	1200	}
1038		1201
1039	void inline_size infy_fork (EV_P);	1202	void inline_size infy_fork (EV_P);
…		…
1052	#endif	1215	#endif
1053	#if EV_USE_INOTIFY	1216	#if EV_USE_INOTIFY
1054	infy_fork (EV_A);	1217	infy_fork (EV_A);
1055	#endif	1218	#endif
1056		1219
1057	if (ev_is_active (&sigev))	1220	if (ev_is_active (&pipeev))
1058	{	1221	{
1059	/* default loop */	1222	/* this "locks" the handlers against writing to the pipe */
		1223	/* while we modify the fd vars */
		1224	gotsig = 1;
		1225	#if EV_ASYNC_ENABLE
		1226	gotasync = 1;
		1227	#endif
1060		1228
1061	ev_ref (EV_A);	1229	ev_ref (EV_A);
1062	ev_io_stop (EV_A_ &sigev);	1230	ev_io_stop (EV_A_ &pipeev);
1063	close (sigpipe [0]);	1231	close (evpipe [0]);
1064	close (sigpipe [1]);	1232	close (evpipe [1]);
1065		1233
1066	while (pipe (sigpipe))
1067	syserr ("(libev) error creating pipe");
1068
1069	siginit (EV_A);	1234	evpipe_init (EV_A);
		1235	/* now iterate over everything, in case we missed something */
		1236	pipecb (EV_A_ &pipeev, EV_READ);
1070	}	1237	}
1071		1238
1072	postfork = 0;	1239	postfork = 0;
1073	}	1240	}
1074		1241
…		…
1096	}	1263	}
1097		1264
1098	void	1265	void
1099	ev_loop_fork (EV_P)	1266	ev_loop_fork (EV_P)
1100	{	1267	{
1101	postfork = 1;	1268	postfork = 1; /* must be in line with ev_default_fork */
1102	}	1269	}
1103		1270
1104	#endif	1271	#endif
1105		1272
1106	#if EV_MULTIPLICITY	1273	#if EV_MULTIPLICITY
…		…
1109	#else	1276	#else
1110	int	1277	int
1111	ev_default_loop (unsigned int flags)	1278	ev_default_loop (unsigned int flags)
1112	#endif	1279	#endif
1113	{	1280	{
1114	if (sigpipe [0] == sigpipe [1])
1115	if (pipe (sigpipe))
1116	return 0;
1117
1118	if (!ev_default_loop_ptr)	1281	if (!ev_default_loop_ptr)
1119	{	1282	{
1120	#if EV_MULTIPLICITY	1283	#if EV_MULTIPLICITY
1121	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1284	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1122	#else	1285	#else
…		…
1125		1288
1126	loop_init (EV_A_ flags);	1289	loop_init (EV_A_ flags);
1127		1290
1128	if (ev_backend (EV_A))	1291	if (ev_backend (EV_A))
1129	{	1292	{
1130	siginit (EV_A);
1131
1132	#ifndef _WIN32	1293	#ifndef _WIN32
1133	ev_signal_init (&childev, childcb, SIGCHLD);	1294	ev_signal_init (&childev, childcb, SIGCHLD);
1134	ev_set_priority (&childev, EV_MAXPRI);	1295	ev_set_priority (&childev, EV_MAXPRI);
1135	ev_signal_start (EV_A_ &childev);	1296	ev_signal_start (EV_A_ &childev);
1136	ev_unref (EV_A); /* child watcher should not keep loop alive */	1297	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1153	#ifndef _WIN32	1314	#ifndef _WIN32
1154	ev_ref (EV_A); /* child watcher */	1315	ev_ref (EV_A); /* child watcher */
1155	ev_signal_stop (EV_A_ &childev);	1316	ev_signal_stop (EV_A_ &childev);
1156	#endif	1317	#endif
1157		1318
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);	1319	loop_destroy (EV_A);
1165	}	1320	}
1166		1321
1167	void	1322	void
1168	ev_default_fork (void)	1323	ev_default_fork (void)
…		…
1170	#if EV_MULTIPLICITY	1325	#if EV_MULTIPLICITY
1171	struct ev_loop *loop = ev_default_loop_ptr;	1326	struct ev_loop *loop = ev_default_loop_ptr;
1172	#endif	1327	#endif
1173		1328
1174	if (backend)	1329	if (backend)
1175	postfork = 1;	1330	postfork = 1; /* must be in line with ev_loop_fork */
1176	}	1331	}
1177		1332
1178	/*****************************************************************************/	1333	/*****************************************************************************/
1179		1334
1180	void	1335	void
…		…
1206	void inline_size	1361	void inline_size
1207	timers_reify (EV_P)	1362	timers_reify (EV_P)
1208	{	1363	{
1209	while (timercnt && ((WT)timers [0])->at <= mn_now)	1364	while (timercnt && ((WT)timers [0])->at <= mn_now)
1210	{	1365	{
1211	ev_timer *w = timers [0];	1366	ev_timer w = (ev_timer )timers [0];
1212		1367
1213	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1368	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1214		1369
1215	/* first reschedule or stop timer */	1370	/* first reschedule or stop timer */
1216	if (w->repeat)	1371	if (w->repeat)
…		…
1219		1374
1220	((WT)w)->at += w->repeat;	1375	((WT)w)->at += w->repeat;
1221	if (((WT)w)->at < mn_now)	1376	if (((WT)w)->at < mn_now)
1222	((WT)w)->at = mn_now;	1377	((WT)w)->at = mn_now;
1223		1378
1224	downheap ((WT *)timers, timercnt, 0);	1379	downheap (timers, timercnt, 0);
1225	}	1380	}
1226	else	1381	else
1227	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1382	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1228		1383
1229	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1384	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1234	void inline_size	1389	void inline_size
1235	periodics_reify (EV_P)	1390	periodics_reify (EV_P)
1236	{	1391	{
1237	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1392	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1238	{	1393	{
1239	ev_periodic *w = periodics [0];	1394	ev_periodic w = (ev_periodic )periodics [0];
1240		1395
1241	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1396	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1242		1397
1243	/* first reschedule or stop timer */	1398	/* first reschedule or stop timer */
1244	if (w->reschedule_cb)	1399	if (w->reschedule_cb)
1245	{	1400	{
1246	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1401	((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));	1402	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1248	downheap ((WT *)periodics, periodiccnt, 0);	1403	downheap (periodics, periodiccnt, 0);
1249	}	1404	}
1250	else if (w->interval)	1405	else if (w->interval)
1251	{	1406	{
1252	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1407	((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;	1408	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));	1409	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);	1410	downheap (periodics, periodiccnt, 0);
1256	}	1411	}
1257	else	1412	else
1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1413	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1259		1414
1260	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1415	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1267	int i;	1422	int i;
1268		1423
1269	/* adjust periodics after time jump */	1424	/* adjust periodics after time jump */
1270	for (i = 0; i < periodiccnt; ++i)	1425	for (i = 0; i < periodiccnt; ++i)
1271	{	1426	{
1272	ev_periodic *w = periodics [i];	1427	ev_periodic w = (ev_periodic )periodics [i];
1273		1428
1274	if (w->reschedule_cb)	1429	if (w->reschedule_cb)
1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1430	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1276	else if (w->interval)	1431	else if (w->interval)
1277	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1432	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1278	}	1433	}
1279		1434
1280	/* now rebuild the heap */	1435	/* now rebuild the heap */
1281	for (i = periodiccnt >> 1; i--; )	1436	for (i = periodiccnt >> 1; i--; )
1282	downheap ((WT *)periodics, periodiccnt, i);	1437	downheap (periodics, periodiccnt, i);
1283	}	1438	}
1284	#endif	1439	#endif
1285		1440
1286	#if EV_IDLE_ENABLE	1441	#if EV_IDLE_ENABLE
1287	void inline_size	1442	void inline_size
…		…
1435	/* update fd-related kernel structures */	1590	/* update fd-related kernel structures */
1436	fd_reify (EV_A);	1591	fd_reify (EV_A);
1437		1592
1438	/* calculate blocking time */	1593	/* calculate blocking time */
1439	{	1594	{
1440	ev_tstamp block;	1595	ev_tstamp waittime = 0.;
		1596	ev_tstamp sleeptime = 0.;
1441		1597
1442	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1598	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1443	block = 0.; /* do not block at all */
1444	else
1445	{	1599	{
1446	/* update time to cancel out callback processing overhead */	1600	/* update time to cancel out callback processing overhead */
1447	time_update (EV_A_ 1e100);	1601	time_update (EV_A_ 1e100);
1448		1602
1449	block = MAX_BLOCKTIME;	1603	waittime = MAX_BLOCKTIME;
1450		1604
1451	if (timercnt)	1605	if (timercnt)
1452	{	1606	{
1453	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1607	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1454	if (block > to) block = to;	1608	if (waittime > to) waittime = to;
1455	}	1609	}
1456		1610
1457	#if EV_PERIODIC_ENABLE	1611	#if EV_PERIODIC_ENABLE
1458	if (periodiccnt)	1612	if (periodiccnt)
1459	{	1613	{
1460	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1614	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1461	if (block > to) block = to;	1615	if (waittime > to) waittime = to;
1462	}	1616	}
1463	#endif	1617	#endif
1464		1618
1465	if (expect_false (block < 0.)) block = 0.;	1619	if (expect_false (waittime < timeout_blocktime))
		1620	waittime = timeout_blocktime;
		1621
		1622	sleeptime = waittime - backend_fudge;
		1623
		1624	if (expect_true (sleeptime > io_blocktime))
		1625	sleeptime = io_blocktime;
		1626
		1627	if (sleeptime)
		1628	{
		1629	ev_sleep (sleeptime);
		1630	waittime -= sleeptime;
		1631	}
1466	}	1632	}
1467		1633
1468	++loop_count;	1634	++loop_count;
1469	backend_poll (EV_A_ block);	1635	backend_poll (EV_A_ waittime);
1470		1636
1471	/* update ev_rt_now, do magic */	1637	/* update ev_rt_now, do magic */
1472	time_update (EV_A_ block);	1638	time_update (EV_A_ waittime + sleeptime);
1473	}	1639	}
1474		1640
1475	/* queue pending timers and reschedule them */	1641	/* queue pending timers and reschedule them */
1476	timers_reify (EV_A); /* relative timers called last */	1642	timers_reify (EV_A); /* relative timers called last */
1477	#if EV_PERIODIC_ENABLE	1643	#if EV_PERIODIC_ENABLE
…		…
1589		1755
1590	assert (("ev_io_start called with negative fd", fd >= 0));	1756	assert (("ev_io_start called with negative fd", fd >= 0));
1591		1757
1592	ev_start (EV_A_ (W)w, 1);	1758	ev_start (EV_A_ (W)w, 1);
1593	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1759	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1594	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1760	wlist_add (&anfds[fd].head, (WL)w);
1595		1761
1596	fd_change (EV_A_ fd);	1762	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1763	w->events &= ~EV_IOFDSET;
1597	}	1764	}
1598		1765
1599	void noinline	1766	void noinline
1600	ev_io_stop (EV_P_ ev_io *w)	1767	ev_io_stop (EV_P_ ev_io *w)
1601	{	1768	{
…		…
1603	if (expect_false (!ev_is_active (w)))	1770	if (expect_false (!ev_is_active (w)))
1604	return;	1771	return;
1605		1772
1606	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1773	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1607		1774
1608	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1775	wlist_del (&anfds[w->fd].head, (WL)w);
1609	ev_stop (EV_A_ (W)w);	1776	ev_stop (EV_A_ (W)w);
1610		1777
1611	fd_change (EV_A_ w->fd);	1778	fd_change (EV_A_ w->fd, 1);
1612	}	1779	}
1613		1780
1614	void noinline	1781	void noinline
1615	ev_timer_start (EV_P_ ev_timer *w)	1782	ev_timer_start (EV_P_ ev_timer *w)
1616	{	1783	{
…		…
1620	((WT)w)->at += mn_now;	1787	((WT)w)->at += mn_now;
1621		1788
1622	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1789	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1623		1790
1624	ev_start (EV_A_ (W)w, ++timercnt);	1791	ev_start (EV_A_ (W)w, ++timercnt);
1625	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1792	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1626	timers [timercnt - 1] = w;	1793	timers [timercnt - 1] = (WT)w;
1627	upheap ((WT *)timers, timercnt - 1);	1794	upheap (timers, timercnt - 1);
1628		1795
1629	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1796	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1630	}	1797	}
1631		1798
1632	void noinline	1799	void noinline
…		…
1634	{	1801	{
1635	clear_pending (EV_A_ (W)w);	1802	clear_pending (EV_A_ (W)w);
1636	if (expect_false (!ev_is_active (w)))	1803	if (expect_false (!ev_is_active (w)))
1637	return;	1804	return;
1638		1805
1639	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1806	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1640		1807
1641	{	1808	{
1642	int active = ((W)w)->active;	1809	int active = ((W)w)->active;
1643		1810
1644	if (expect_true (--active < --timercnt))	1811	if (expect_true (--active < --timercnt))
1645	{	1812	{
1646	timers [active] = timers [timercnt];	1813	timers [active] = timers [timercnt];
1647	adjustheap ((WT *)timers, timercnt, active);	1814	adjustheap (timers, timercnt, active);
1648	}	1815	}
1649	}	1816	}
1650		1817
1651	((WT)w)->at -= mn_now;	1818	((WT)w)->at -= mn_now;
1652		1819
…		…
1659	if (ev_is_active (w))	1826	if (ev_is_active (w))
1660	{	1827	{
1661	if (w->repeat)	1828	if (w->repeat)
1662	{	1829	{
1663	((WT)w)->at = mn_now + w->repeat;	1830	((WT)w)->at = mn_now + w->repeat;
1664	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1831	adjustheap (timers, timercnt, ((W)w)->active - 1);
1665	}	1832	}
1666	else	1833	else
1667	ev_timer_stop (EV_A_ w);	1834	ev_timer_stop (EV_A_ w);
1668	}	1835	}
1669	else if (w->repeat)	1836	else if (w->repeat)
…		…
1690	}	1857	}
1691	else	1858	else
1692	((WT)w)->at = w->offset;	1859	((WT)w)->at = w->offset;
1693		1860
1694	ev_start (EV_A_ (W)w, ++periodiccnt);	1861	ev_start (EV_A_ (W)w, ++periodiccnt);
1695	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1862	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1696	periodics [periodiccnt - 1] = w;	1863	periodics [periodiccnt - 1] = (WT)w;
1697	upheap ((WT *)periodics, periodiccnt - 1);	1864	upheap (periodics, periodiccnt - 1);
1698		1865
1699	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1866	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1700	}	1867	}
1701		1868
1702	void noinline	1869	void noinline
…		…
1704	{	1871	{
1705	clear_pending (EV_A_ (W)w);	1872	clear_pending (EV_A_ (W)w);
1706	if (expect_false (!ev_is_active (w)))	1873	if (expect_false (!ev_is_active (w)))
1707	return;	1874	return;
1708		1875
1709	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1876	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1710		1877
1711	{	1878	{
1712	int active = ((W)w)->active;	1879	int active = ((W)w)->active;
1713		1880
1714	if (expect_true (--active < --periodiccnt))	1881	if (expect_true (--active < --periodiccnt))
1715	{	1882	{
1716	periodics [active] = periodics [periodiccnt];	1883	periodics [active] = periodics [periodiccnt];
1717	adjustheap ((WT *)periodics, periodiccnt, active);	1884	adjustheap (periodics, periodiccnt, active);
1718	}	1885	}
1719	}	1886	}
1720		1887
1721	ev_stop (EV_A_ (W)w);	1888	ev_stop (EV_A_ (W)w);
1722	}	1889	}
…		…
1743	if (expect_false (ev_is_active (w)))	1910	if (expect_false (ev_is_active (w)))
1744	return;	1911	return;
1745		1912
1746	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1913	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1747		1914
		1915	evpipe_init (EV_A);
		1916
		1917	{
		1918	#ifndef _WIN32
		1919	sigset_t full, prev;
		1920	sigfillset (&full);
		1921	sigprocmask (SIG_SETMASK, &full, &prev);
		1922	#endif
		1923
		1924	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1925
		1926	#ifndef _WIN32
		1927	sigprocmask (SIG_SETMASK, &prev, 0);
		1928	#endif
		1929	}
		1930
1748	ev_start (EV_A_ (W)w, 1);	1931	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);	1932	wlist_add (&signals [w->signum - 1].head, (WL)w);
1751		1933
1752	if (!((WL)w)->next)	1934	if (!((WL)w)->next)
1753	{	1935	{
1754	#if _WIN32	1936	#if _WIN32
1755	signal (w->signum, sighandler);	1937	signal (w->signum, sighandler);
…		…
1768	{	1950	{
1769	clear_pending (EV_A_ (W)w);	1951	clear_pending (EV_A_ (W)w);
1770	if (expect_false (!ev_is_active (w)))	1952	if (expect_false (!ev_is_active (w)))
1771	return;	1953	return;
1772		1954
1773	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1955	wlist_del (&signals [w->signum - 1].head, (WL)w);
1774	ev_stop (EV_A_ (W)w);	1956	ev_stop (EV_A_ (W)w);
1775		1957
1776	if (!signals [w->signum - 1].head)	1958	if (!signals [w->signum - 1].head)
1777	signal (w->signum, SIG_DFL);	1959	signal (w->signum, SIG_DFL);
1778	}	1960	}
…		…
1785	#endif	1967	#endif
1786	if (expect_false (ev_is_active (w)))	1968	if (expect_false (ev_is_active (w)))
1787	return;	1969	return;
1788		1970
1789	ev_start (EV_A_ (W)w, 1);	1971	ev_start (EV_A_ (W)w, 1);
1790	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1972	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1791	}	1973	}
1792		1974
1793	void	1975	void
1794	ev_child_stop (EV_P_ ev_child *w)	1976	ev_child_stop (EV_P_ ev_child *w)
1795	{	1977	{
1796	clear_pending (EV_A_ (W)w);	1978	clear_pending (EV_A_ (W)w);
1797	if (expect_false (!ev_is_active (w)))	1979	if (expect_false (!ev_is_active (w)))
1798	return;	1980	return;
1799		1981
1800	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1982	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1801	ev_stop (EV_A_ (W)w);	1983	ev_stop (EV_A_ (W)w);
1802	}	1984	}
1803		1985
1804	#if EV_STAT_ENABLE	1986	#if EV_STAT_ENABLE
1805		1987
…		…
2147		2329
2148	#if EV_EMBED_ENABLE	2330	#if EV_EMBED_ENABLE
2149	void noinline	2331	void noinline
2150	ev_embed_sweep (EV_P_ ev_embed *w)	2332	ev_embed_sweep (EV_P_ ev_embed *w)
2151	{	2333	{
2152	ev_loop (w->loop, EVLOOP_NONBLOCK);	2334	ev_loop (w->other, EVLOOP_NONBLOCK);
2153	}	2335	}
2154		2336
2155	static void	2337	static void
2156	embed_cb (EV_P_ ev_io *io, int revents)	2338	embed_io_cb (EV_P_ ev_io *io, int revents)
2157	{	2339	{
2158	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2340	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2159		2341
2160	if (ev_cb (w))	2342	if (ev_cb (w))
2161	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2343	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2162	else	2344	else
2163	ev_embed_sweep (loop, w);	2345	ev_loop (w->other, EVLOOP_NONBLOCK);
2164	}	2346	}
		2347
		2348	static void
		2349	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2350	{
		2351	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2352
		2353	{
		2354	struct ev_loop *loop = w->other;
		2355
		2356	while (fdchangecnt)
		2357	{
		2358	fd_reify (EV_A);
		2359	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2360	}
		2361	}
		2362	}
		2363
		2364	#if 0
		2365	static void
		2366	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2367	{
		2368	ev_idle_stop (EV_A_ idle);
		2369	}
		2370	#endif
2165		2371
2166	void	2372	void
2167	ev_embed_start (EV_P_ ev_embed *w)	2373	ev_embed_start (EV_P_ ev_embed *w)
2168	{	2374	{
2169	if (expect_false (ev_is_active (w)))	2375	if (expect_false (ev_is_active (w)))
2170	return;	2376	return;
2171		2377
2172	{	2378	{
2173	struct ev_loop *loop = w->loop;	2379	struct ev_loop *loop = w->other;
2174	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2380	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2175	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2381	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2176	}	2382	}
2177		2383
2178	ev_set_priority (&w->io, ev_priority (w));	2384	ev_set_priority (&w->io, ev_priority (w));
2179	ev_io_start (EV_A_ &w->io);	2385	ev_io_start (EV_A_ &w->io);
2180		2386
		2387	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2388	ev_set_priority (&w->prepare, EV_MINPRI);
		2389	ev_prepare_start (EV_A_ &w->prepare);
		2390
		2391	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2392
2181	ev_start (EV_A_ (W)w, 1);	2393	ev_start (EV_A_ (W)w, 1);
2182	}	2394	}
2183		2395
2184	void	2396	void
2185	ev_embed_stop (EV_P_ ev_embed *w)	2397	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2187	clear_pending (EV_A_ (W)w);	2399	clear_pending (EV_A_ (W)w);
2188	if (expect_false (!ev_is_active (w)))	2400	if (expect_false (!ev_is_active (w)))
2189	return;	2401	return;
2190		2402
2191	ev_io_stop (EV_A_ &w->io);	2403	ev_io_stop (EV_A_ &w->io);
		2404	ev_prepare_stop (EV_A_ &w->prepare);
2192		2405
2193	ev_stop (EV_A_ (W)w);	2406	ev_stop (EV_A_ (W)w);
2194	}	2407	}
2195	#endif	2408	#endif
2196		2409
…		…
2221		2434
2222	ev_stop (EV_A_ (W)w);	2435	ev_stop (EV_A_ (W)w);
2223	}	2436	}
2224	#endif	2437	#endif
2225		2438
		2439	#if EV_ASYNC_ENABLE
		2440	void
		2441	ev_async_start (EV_P_ ev_async *w)
		2442	{
		2443	if (expect_false (ev_is_active (w)))
		2444	return;
		2445
		2446	evpipe_init (EV_A);
		2447
		2448	ev_start (EV_A_ (W)w, ++asynccnt);
		2449	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2450	asyncs [asynccnt - 1] = w;
		2451	}
		2452
		2453	void
		2454	ev_async_stop (EV_P_ ev_async *w)
		2455	{
		2456	clear_pending (EV_A_ (W)w);
		2457	if (expect_false (!ev_is_active (w)))
		2458	return;
		2459
		2460	{
		2461	int active = ((W)w)->active;
		2462	asyncs [active - 1] = asyncs [--asynccnt];
		2463	((W)asyncs [active - 1])->active = active;
		2464	}
		2465
		2466	ev_stop (EV_A_ (W)w);
		2467	}
		2468
		2469	void
		2470	ev_async_send (EV_P_ ev_async *w)
		2471	{
		2472	w->sent = 1;
		2473	evpipe_write (EV_A_ 0, 1);
		2474	}
		2475	#endif
		2476
2226	/*****************************************************************************/	2477	/*****************************************************************************/
2227		2478
2228	struct ev_once	2479	struct ev_once
2229	{	2480	{
2230	ev_io io;	2481	ev_io io;
…		…
2285	ev_timer_set (&once->to, timeout, 0.);	2536	ev_timer_set (&once->to, timeout, 0.);
2286	ev_timer_start (EV_A_ &once->to);	2537	ev_timer_start (EV_A_ &once->to);
2287	}	2538	}
2288	}	2539	}
2289		2540
		2541	#if EV_MULTIPLICITY
		2542	#include "ev_wrap.h"
		2543	#endif
		2544
2290	#ifdef __cplusplus	2545	#ifdef __cplusplus
2291	}	2546	}
2292	#endif	2547	#endif
2293		2548

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Comparing libev/ev.c (file contents): Revision 1.178 by root, Tue Dec 11 18:36:11 2007 UTC vs. Revision 1.212 by root, Tue Feb 19 19:01:13 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 1.212 by root, Tue Feb 19 19:01:13 2008 UTC