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

Comparing libev/ev.c (file contents):
Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC vs.
Revision 1.209 by root, Tue Feb 5 23:56:33 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
…		…
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
…		…
652	k = p;	721	k = p;
653	}	722	}
654		723
655	heap [k] = w;	724	heap [k] = w;
656	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
657
658	}	726	}
659		727
660	void inline_speed	728	void inline_speed
661	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
662	{	730	{
…		…
695	/*****************************************************************************/	763	/*****************************************************************************/
696		764
697	typedef struct	765	typedef struct
698	{	766	{
699	WL head;	767	WL head;
700	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
701	} ANSIG;	769	} ANSIG;
702		770
703	static ANSIG *signals;	771	static ANSIG *signals;
704	static int signalmax;	772	static int signalmax;
705		773
706	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
707	static sig_atomic_t volatile gotsig;
708	static ev_io sigev;
709		775
710	void inline_size	776	void inline_size
711	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
712	{	778	{
713	while (count--)	779	while (count--)
…		…
717		783
718	++base;	784	++base;
719	}	785	}
720	}	786	}
721		787
722	static void	788	/*****************************************************************************/
723	sighandler (int signum)
724	{
725	#if _WIN32
726	signal (signum, sighandler);
727	#endif
728
729	signals [signum - 1].gotsig = 1;
730
731	if (!gotsig)
732	{
733	int old_errno = errno;
734	gotsig = 1;
735	write (sigpipe [1], &signum, 1);
736	errno = old_errno;
737	}
738	}
739
740	void noinline
741	ev_feed_signal_event (EV_P_ int signum)
742	{
743	WL w;
744
745	#if EV_MULTIPLICITY
746	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
747	#endif
748
749	--signum;
750
751	if (signum < 0 \|\| signum >= signalmax)
752	return;
753
754	signals [signum].gotsig = 0;
755
756	for (w = signals [signum].head; w; w = w->next)
757	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
758	}
759
760	static void
761	sigcb (EV_P_ ev_io *iow, int revents)
762	{
763	int signum;
764
765	read (sigpipe [0], &revents, 1);
766	gotsig = 0;
767
768	for (signum = signalmax; signum--; )
769	if (signals [signum].gotsig)
770	ev_feed_signal_event (EV_A_ signum + 1);
771	}
772		789
773	void inline_speed	790	void inline_speed
774	fd_intern (int fd)	791	fd_intern (int fd)
775	{	792	{
776	#ifdef _WIN32	793	#ifdef _WIN32
…		…
781	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
782	#endif	799	#endif
783	}	800	}
784		801
785	static void noinline	802	static void noinline
786	siginit (EV_P)	803	evpipe_init (EV_P)
787	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
788	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
789	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
790		812
791	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
792	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
793	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* child 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;
		825
		826	if (sig) gotsig = 1;
		827	if (async) gotasync = 1;
		828
		829	write (evpipe [1], &old_errno, 1);
		830	errno = old_errno;
		831	}
		832	}
		833
		834	static void
		835	pipecb (EV_P_ ev_io *iow, int revents)
		836	{
		837	{
		838	int dummy;
		839	read (evpipe [0], &dummy, 1);
		840	}
		841
		842	if (gotsig)
		843	{
		844	int signum;
		845	gotsig = 0;
		846
		847	for (signum = signalmax; signum--; )
		848	if (signals [signum].gotsig)
		849	ev_feed_signal_event (EV_A_ signum + 1);
		850	}
		851
		852	#if EV_ASYNC_ENABLE
		853	if (gotasync)
		854	{
		855	int i;
		856	gotasync = 0;
		857
		858	for (i = asynccnt; i--; )
		859	if (asyncs [i]->sent)
		860	{
		861	asyncs [i]->sent = 0;
		862	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		863	}
		864	}
		865	#endif
794	}	866	}
795		867
796	/*****************************************************************************/	868	/*****************************************************************************/
797		869
		870	static void
		871	sighandler (int signum)
		872	{
		873	#if EV_MULTIPLICITY
		874	struct ev_loop *loop = &default_loop_struct;
		875	#endif
		876
		877	#if _WIN32
		878	signal (signum, sighandler);
		879	#endif
		880
		881	signals [signum - 1].gotsig = 1;
		882	evpipe_write (EV_A_ 1, 0);
		883	}
		884
		885	void noinline
		886	ev_feed_signal_event (EV_P_ int signum)
		887	{
		888	WL w;
		889
		890	#if EV_MULTIPLICITY
		891	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		892	#endif
		893
		894	--signum;
		895
		896	if (signum < 0 \|\| signum >= signalmax)
		897	return;
		898
		899	signals [signum].gotsig = 0;
		900
		901	for (w = signals [signum].head; w; w = w->next)
		902	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		903	}
		904
		905	/*****************************************************************************/
		906
798	static ev_child *childs [EV_PID_HASHSIZE];	907	static WL childs [EV_PID_HASHSIZE];
799		908
800	#ifndef _WIN32	909	#ifndef _WIN32
801		910
802	static ev_signal childev;	911	static ev_signal childev;
		912
		913	#ifndef WIFCONTINUED
		914	# define WIFCONTINUED(status) 0
		915	#endif
803		916
804	void inline_speed	917	void inline_speed
805	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	918	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
806	{	919	{
807	ev_child *w;	920	ev_child *w;
		921	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
808		922
809	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	923	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		924	{
810	if (w->pid == pid \|\| !w->pid)	925	if ((w->pid == pid \|\| !w->pid)
		926	&& (!traced \|\| (w->flags & 1)))
811	{	927	{
812	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	928	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
813	w->rpid = pid;	929	w->rpid = pid;
814	w->rstatus = status;	930	w->rstatus = status;
815	ev_feed_event (EV_A_ (W)w, EV_CHILD);	931	ev_feed_event (EV_A_ (W)w, EV_CHILD);
816	}	932	}
		933	}
817	}	934	}
818		935
819	#ifndef WCONTINUED	936	#ifndef WCONTINUED
820	# define WCONTINUED 0	937	# define WCONTINUED 0
821	#endif	938	#endif
…		…
918	}	1035	}
919		1036
920	unsigned int	1037	unsigned int
921	ev_embeddable_backends (void)	1038	ev_embeddable_backends (void)
922	{	1039	{
923	return EVBACKEND_EPOLL	1040	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
924	\| EVBACKEND_KQUEUE	1041
925	\| EVBACKEND_PORT;	1042	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1043	/* please fix it and tell me how to detect the fix */
		1044	flags &= ~EVBACKEND_EPOLL;
		1045
		1046	return flags;
926	}	1047	}
927		1048
928	unsigned int	1049	unsigned int
929	ev_backend (EV_P)	1050	ev_backend (EV_P)
930	{	1051	{
…		…
933		1054
934	unsigned int	1055	unsigned int
935	ev_loop_count (EV_P)	1056	ev_loop_count (EV_P)
936	{	1057	{
937	return loop_count;	1058	return loop_count;
		1059	}
		1060
		1061	void
		1062	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1063	{
		1064	io_blocktime = interval;
		1065	}
		1066
		1067	void
		1068	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1069	{
		1070	timeout_blocktime = interval;
938	}	1071	}
939		1072
940	static void noinline	1073	static void noinline
941	loop_init (EV_P_ unsigned int flags)	1074	loop_init (EV_P_ unsigned int flags)
942	{	1075	{
…		…
948	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1081	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
949	have_monotonic = 1;	1082	have_monotonic = 1;
950	}	1083	}
951	#endif	1084	#endif
952		1085
953	ev_rt_now = ev_time ();	1086	ev_rt_now = ev_time ();
954	mn_now = get_clock ();	1087	mn_now = get_clock ();
955	now_floor = mn_now;	1088	now_floor = mn_now;
956	rtmn_diff = ev_rt_now - mn_now;	1089	rtmn_diff = ev_rt_now - mn_now;
		1090
		1091	io_blocktime = 0.;
		1092	timeout_blocktime = 0.;
		1093	backend = 0;
		1094	backend_fd = -1;
		1095	gotasync = 0;
		1096	#if EV_USE_INOTIFY
		1097	fs_fd = -2;
		1098	#endif
957		1099
958	/* pid check not overridable via env */	1100	/* pid check not overridable via env */
959	#ifndef _WIN32	1101	#ifndef _WIN32
960	if (flags & EVFLAG_FORKCHECK)	1102	if (flags & EVFLAG_FORKCHECK)
961	curpid = getpid ();	1103	curpid = getpid ();
…		…
967	flags = atoi (getenv ("LIBEV_FLAGS"));	1109	flags = atoi (getenv ("LIBEV_FLAGS"));
968		1110
969	if (!(flags & 0x0000ffffUL))	1111	if (!(flags & 0x0000ffffUL))
970	flags \|= ev_recommended_backends ();	1112	flags \|= ev_recommended_backends ();
971		1113
972	backend = 0;
973	backend_fd = -1;
974	#if EV_USE_INOTIFY
975	fs_fd = -2;
976	#endif
977
978	#if EV_USE_PORT	1114	#if EV_USE_PORT
979	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1115	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
980	#endif	1116	#endif
981	#if EV_USE_KQUEUE	1117	#if EV_USE_KQUEUE
982	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1118	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
989	#endif	1125	#endif
990	#if EV_USE_SELECT	1126	#if EV_USE_SELECT
991	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1127	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
992	#endif	1128	#endif
993		1129
994	ev_init (&sigev, sigcb);	1130	ev_init (&pipeev, pipecb);
995	ev_set_priority (&sigev, EV_MAXPRI);	1131	ev_set_priority (&pipeev, EV_MAXPRI);
996	}	1132	}
997	}	1133	}
998		1134
999	static void noinline	1135	static void noinline
1000	loop_destroy (EV_P)	1136	loop_destroy (EV_P)
1001	{	1137	{
1002	int i;	1138	int i;
		1139
		1140	if (ev_is_active (&pipeev))
		1141	{
		1142	ev_ref (EV_A); /* signal watcher */
		1143	ev_io_stop (EV_A_ &pipeev);
		1144
		1145	close (evpipe [0]); evpipe [0] = 0;
		1146	close (evpipe [1]); evpipe [1] = 0;
		1147	}
1003		1148
1004	#if EV_USE_INOTIFY	1149	#if EV_USE_INOTIFY
1005	if (fs_fd >= 0)	1150	if (fs_fd >= 0)
1006	close (fs_fd);	1151	close (fs_fd);
1007	#endif	1152	#endif
…		…
1030	array_free (pending, [i]);	1175	array_free (pending, [i]);
1031	#if EV_IDLE_ENABLE	1176	#if EV_IDLE_ENABLE
1032	array_free (idle, [i]);	1177	array_free (idle, [i]);
1033	#endif	1178	#endif
1034	}	1179	}
		1180
		1181	ev_free (anfds); anfdmax = 0;
1035		1182
1036	/* have to use the microsoft-never-gets-it-right macro */	1183	/* have to use the microsoft-never-gets-it-right macro */
1037	array_free (fdchange, EMPTY);	1184	array_free (fdchange, EMPTY);
1038	array_free (timer, EMPTY);	1185	array_free (timer, EMPTY);
1039	#if EV_PERIODIC_ENABLE	1186	#if EV_PERIODIC_ENABLE
1040	array_free (periodic, EMPTY);	1187	array_free (periodic, EMPTY);
1041	#endif	1188	#endif
		1189	#if EV_FORK_ENABLE
		1190	array_free (fork, EMPTY);
		1191	#endif
1042	array_free (prepare, EMPTY);	1192	array_free (prepare, EMPTY);
1043	array_free (check, EMPTY);	1193	array_free (check, EMPTY);
		1194	#if EV_ASYNC_ENABLE
		1195	array_free (async, EMPTY);
		1196	#endif
1044		1197
1045	backend = 0;	1198	backend = 0;
1046	}	1199	}
1047		1200
1048	void inline_size infy_fork (EV_P);	1201	void inline_size infy_fork (EV_P);
…		…
1061	#endif	1214	#endif
1062	#if EV_USE_INOTIFY	1215	#if EV_USE_INOTIFY
1063	infy_fork (EV_A);	1216	infy_fork (EV_A);
1064	#endif	1217	#endif
1065		1218
1066	if (ev_is_active (&sigev))	1219	if (ev_is_active (&pipeev))
1067	{	1220	{
1068	/* default loop */	1221	/* this "locks" the handlers against writing to the pipe */
		1222	gotsig = gotasync = 1;
1069		1223
1070	ev_ref (EV_A);	1224	ev_ref (EV_A);
1071	ev_io_stop (EV_A_ &sigev);	1225	ev_io_stop (EV_A_ &pipeev);
1072	close (sigpipe [0]);	1226	close (evpipe [0]);
1073	close (sigpipe [1]);	1227	close (evpipe [1]);
1074		1228
1075	while (pipe (sigpipe))
1076	syserr ("(libev) error creating pipe");
1077
1078	siginit (EV_A);	1229	evpipe_init (EV_A);
		1230	/* now iterate over everything, in case we missed something */
		1231	pipecb (EV_A_ &pipeev, EV_READ);
1079	}	1232	}
1080		1233
1081	postfork = 0;	1234	postfork = 0;
1082	}	1235	}
1083		1236
…		…
1105	}	1258	}
1106		1259
1107	void	1260	void
1108	ev_loop_fork (EV_P)	1261	ev_loop_fork (EV_P)
1109	{	1262	{
1110	postfork = 1;	1263	postfork = 1; /* must be in line with ev_default_fork */
1111	}	1264	}
1112		1265
1113	#endif	1266	#endif
1114		1267
1115	#if EV_MULTIPLICITY	1268	#if EV_MULTIPLICITY
…		…
1118	#else	1271	#else
1119	int	1272	int
1120	ev_default_loop (unsigned int flags)	1273	ev_default_loop (unsigned int flags)
1121	#endif	1274	#endif
1122	{	1275	{
1123	if (sigpipe [0] == sigpipe [1])
1124	if (pipe (sigpipe))
1125	return 0;
1126
1127	if (!ev_default_loop_ptr)	1276	if (!ev_default_loop_ptr)
1128	{	1277	{
1129	#if EV_MULTIPLICITY	1278	#if EV_MULTIPLICITY
1130	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1279	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1131	#else	1280	#else
…		…
1134		1283
1135	loop_init (EV_A_ flags);	1284	loop_init (EV_A_ flags);
1136		1285
1137	if (ev_backend (EV_A))	1286	if (ev_backend (EV_A))
1138	{	1287	{
1139	siginit (EV_A);
1140
1141	#ifndef _WIN32	1288	#ifndef _WIN32
1142	ev_signal_init (&childev, childcb, SIGCHLD);	1289	ev_signal_init (&childev, childcb, SIGCHLD);
1143	ev_set_priority (&childev, EV_MAXPRI);	1290	ev_set_priority (&childev, EV_MAXPRI);
1144	ev_signal_start (EV_A_ &childev);	1291	ev_signal_start (EV_A_ &childev);
1145	ev_unref (EV_A); /* child watcher should not keep loop alive */	1292	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1162	#ifndef _WIN32	1309	#ifndef _WIN32
1163	ev_ref (EV_A); /* child watcher */	1310	ev_ref (EV_A); /* child watcher */
1164	ev_signal_stop (EV_A_ &childev);	1311	ev_signal_stop (EV_A_ &childev);
1165	#endif	1312	#endif
1166		1313
1167	ev_ref (EV_A); /* signal watcher */
1168	ev_io_stop (EV_A_ &sigev);
1169
1170	close (sigpipe [0]); sigpipe [0] = 0;
1171	close (sigpipe [1]); sigpipe [1] = 0;
1172
1173	loop_destroy (EV_A);	1314	loop_destroy (EV_A);
1174	}	1315	}
1175		1316
1176	void	1317	void
1177	ev_default_fork (void)	1318	ev_default_fork (void)
…		…
1179	#if EV_MULTIPLICITY	1320	#if EV_MULTIPLICITY
1180	struct ev_loop *loop = ev_default_loop_ptr;	1321	struct ev_loop *loop = ev_default_loop_ptr;
1181	#endif	1322	#endif
1182		1323
1183	if (backend)	1324	if (backend)
1184	postfork = 1;	1325	postfork = 1; /* must be in line with ev_loop_fork */
1185	}	1326	}
1186		1327
1187	/*****************************************************************************/	1328	/*****************************************************************************/
1188		1329
1189	void	1330	void
…		…
1215	void inline_size	1356	void inline_size
1216	timers_reify (EV_P)	1357	timers_reify (EV_P)
1217	{	1358	{
1218	while (timercnt && ((WT)timers [0])->at <= mn_now)	1359	while (timercnt && ((WT)timers [0])->at <= mn_now)
1219	{	1360	{
1220	ev_timer *w = timers [0];	1361	ev_timer w = (ev_timer )timers [0];
1221		1362
1222	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1363	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1223		1364
1224	/* first reschedule or stop timer */	1365	/* first reschedule or stop timer */
1225	if (w->repeat)	1366	if (w->repeat)
…		…
1228		1369
1229	((WT)w)->at += w->repeat;	1370	((WT)w)->at += w->repeat;
1230	if (((WT)w)->at < mn_now)	1371	if (((WT)w)->at < mn_now)
1231	((WT)w)->at = mn_now;	1372	((WT)w)->at = mn_now;
1232		1373
1233	downheap ((WT *)timers, timercnt, 0);	1374	downheap (timers, timercnt, 0);
1234	}	1375	}
1235	else	1376	else
1236	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1377	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1237		1378
1238	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1379	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1243	void inline_size	1384	void inline_size
1244	periodics_reify (EV_P)	1385	periodics_reify (EV_P)
1245	{	1386	{
1246	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1387	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1247	{	1388	{
1248	ev_periodic *w = periodics [0];	1389	ev_periodic w = (ev_periodic )periodics [0];
1249		1390
1250	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1391	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1251		1392
1252	/* first reschedule or stop timer */	1393	/* first reschedule or stop timer */
1253	if (w->reschedule_cb)	1394	if (w->reschedule_cb)
1254	{	1395	{
1255	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1396	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1256	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1397	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1257	downheap ((WT *)periodics, periodiccnt, 0);	1398	downheap (periodics, periodiccnt, 0);
1258	}	1399	}
1259	else if (w->interval)	1400	else if (w->interval)
1260	{	1401	{
1261	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1402	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1262	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;	1403	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1263	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1404	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1264	downheap ((WT *)periodics, periodiccnt, 0);	1405	downheap (periodics, periodiccnt, 0);
1265	}	1406	}
1266	else	1407	else
1267	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1408	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1268		1409
1269	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1410	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1276	int i;	1417	int i;
1277		1418
1278	/* adjust periodics after time jump */	1419	/* adjust periodics after time jump */
1279	for (i = 0; i < periodiccnt; ++i)	1420	for (i = 0; i < periodiccnt; ++i)
1280	{	1421	{
1281	ev_periodic *w = periodics [i];	1422	ev_periodic w = (ev_periodic )periodics [i];
1282		1423
1283	if (w->reschedule_cb)	1424	if (w->reschedule_cb)
1284	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1285	else if (w->interval)	1426	else if (w->interval)
1286	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1427	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1287	}	1428	}
1288		1429
1289	/* now rebuild the heap */	1430	/* now rebuild the heap */
1290	for (i = periodiccnt >> 1; i--; )	1431	for (i = periodiccnt >> 1; i--; )
1291	downheap ((WT *)periodics, periodiccnt, i);	1432	downheap (periodics, periodiccnt, i);
1292	}	1433	}
1293	#endif	1434	#endif
1294		1435
1295	#if EV_IDLE_ENABLE	1436	#if EV_IDLE_ENABLE
1296	void inline_size	1437	void inline_size
…		…
1444	/* update fd-related kernel structures */	1585	/* update fd-related kernel structures */
1445	fd_reify (EV_A);	1586	fd_reify (EV_A);
1446		1587
1447	/* calculate blocking time */	1588	/* calculate blocking time */
1448	{	1589	{
1449	ev_tstamp block;	1590	ev_tstamp waittime = 0.;
		1591	ev_tstamp sleeptime = 0.;
1450		1592
1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1593	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1452	block = 0.; /* do not block at all */
1453	else
1454	{	1594	{
1455	/* update time to cancel out callback processing overhead */	1595	/* update time to cancel out callback processing overhead */
1456	time_update (EV_A_ 1e100);	1596	time_update (EV_A_ 1e100);
1457		1597
1458	block = MAX_BLOCKTIME;	1598	waittime = MAX_BLOCKTIME;
1459		1599
1460	if (timercnt)	1600	if (timercnt)
1461	{	1601	{
1462	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1602	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1463	if (block > to) block = to;	1603	if (waittime > to) waittime = to;
1464	}	1604	}
1465		1605
1466	#if EV_PERIODIC_ENABLE	1606	#if EV_PERIODIC_ENABLE
1467	if (periodiccnt)	1607	if (periodiccnt)
1468	{	1608	{
1469	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1609	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1470	if (block > to) block = to;	1610	if (waittime > to) waittime = to;
1471	}	1611	}
1472	#endif	1612	#endif
1473		1613
1474	if (expect_false (block < 0.)) block = 0.;	1614	if (expect_false (waittime < timeout_blocktime))
		1615	waittime = timeout_blocktime;
		1616
		1617	sleeptime = waittime - backend_fudge;
		1618
		1619	if (expect_true (sleeptime > io_blocktime))
		1620	sleeptime = io_blocktime;
		1621
		1622	if (sleeptime)
		1623	{
		1624	ev_sleep (sleeptime);
		1625	waittime -= sleeptime;
		1626	}
1475	}	1627	}
1476		1628
1477	++loop_count;	1629	++loop_count;
1478	backend_poll (EV_A_ block);	1630	backend_poll (EV_A_ waittime);
1479		1631
1480	/* update ev_rt_now, do magic */	1632	/* update ev_rt_now, do magic */
1481	time_update (EV_A_ block);	1633	time_update (EV_A_ waittime + sleeptime);
1482	}	1634	}
1483		1635
1484	/* queue pending timers and reschedule them */	1636	/* queue pending timers and reschedule them */
1485	timers_reify (EV_A); /* relative timers called last */	1637	timers_reify (EV_A); /* relative timers called last */
1486	#if EV_PERIODIC_ENABLE	1638	#if EV_PERIODIC_ENABLE
…		…
1598		1750
1599	assert (("ev_io_start called with negative fd", fd >= 0));	1751	assert (("ev_io_start called with negative fd", fd >= 0));
1600		1752
1601	ev_start (EV_A_ (W)w, 1);	1753	ev_start (EV_A_ (W)w, 1);
1602	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1754	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1603	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1755	wlist_add (&anfds[fd].head, (WL)w);
1604		1756
1605	fd_change (EV_A_ fd);	1757	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1758	w->events &= ~EV_IOFDSET;
1606	}	1759	}
1607		1760
1608	void noinline	1761	void noinline
1609	ev_io_stop (EV_P_ ev_io *w)	1762	ev_io_stop (EV_P_ ev_io *w)
1610	{	1763	{
…		…
1612	if (expect_false (!ev_is_active (w)))	1765	if (expect_false (!ev_is_active (w)))
1613	return;	1766	return;
1614		1767
1615	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1768	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1616		1769
1617	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1770	wlist_del (&anfds[w->fd].head, (WL)w);
1618	ev_stop (EV_A_ (W)w);	1771	ev_stop (EV_A_ (W)w);
1619		1772
1620	fd_change (EV_A_ w->fd);	1773	fd_change (EV_A_ w->fd, 1);
1621	}	1774	}
1622		1775
1623	void noinline	1776	void noinline
1624	ev_timer_start (EV_P_ ev_timer *w)	1777	ev_timer_start (EV_P_ ev_timer *w)
1625	{	1778	{
…		…
1629	((WT)w)->at += mn_now;	1782	((WT)w)->at += mn_now;
1630		1783
1631	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1784	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1632		1785
1633	ev_start (EV_A_ (W)w, ++timercnt);	1786	ev_start (EV_A_ (W)w, ++timercnt);
1634	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1787	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1635	timers [timercnt - 1] = w;	1788	timers [timercnt - 1] = (WT)w;
1636	upheap ((WT *)timers, timercnt - 1);	1789	upheap (timers, timercnt - 1);
1637		1790
1638	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1791	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1639	}	1792	}
1640		1793
1641	void noinline	1794	void noinline
…		…
1643	{	1796	{
1644	clear_pending (EV_A_ (W)w);	1797	clear_pending (EV_A_ (W)w);
1645	if (expect_false (!ev_is_active (w)))	1798	if (expect_false (!ev_is_active (w)))
1646	return;	1799	return;
1647		1800
1648	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1801	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1649		1802
1650	{	1803	{
1651	int active = ((W)w)->active;	1804	int active = ((W)w)->active;
1652		1805
1653	if (expect_true (--active < --timercnt))	1806	if (expect_true (--active < --timercnt))
1654	{	1807	{
1655	timers [active] = timers [timercnt];	1808	timers [active] = timers [timercnt];
1656	adjustheap ((WT *)timers, timercnt, active);	1809	adjustheap (timers, timercnt, active);
1657	}	1810	}
1658	}	1811	}
1659		1812
1660	((WT)w)->at -= mn_now;	1813	((WT)w)->at -= mn_now;
1661		1814
…		…
1668	if (ev_is_active (w))	1821	if (ev_is_active (w))
1669	{	1822	{
1670	if (w->repeat)	1823	if (w->repeat)
1671	{	1824	{
1672	((WT)w)->at = mn_now + w->repeat;	1825	((WT)w)->at = mn_now + w->repeat;
1673	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1826	adjustheap (timers, timercnt, ((W)w)->active - 1);
1674	}	1827	}
1675	else	1828	else
1676	ev_timer_stop (EV_A_ w);	1829	ev_timer_stop (EV_A_ w);
1677	}	1830	}
1678	else if (w->repeat)	1831	else if (w->repeat)
…		…
1699	}	1852	}
1700	else	1853	else
1701	((WT)w)->at = w->offset;	1854	((WT)w)->at = w->offset;
1702		1855
1703	ev_start (EV_A_ (W)w, ++periodiccnt);	1856	ev_start (EV_A_ (W)w, ++periodiccnt);
1704	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1857	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1705	periodics [periodiccnt - 1] = w;	1858	periodics [periodiccnt - 1] = (WT)w;
1706	upheap ((WT *)periodics, periodiccnt - 1);	1859	upheap (periodics, periodiccnt - 1);
1707		1860
1708	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1861	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1709	}	1862	}
1710		1863
1711	void noinline	1864	void noinline
…		…
1713	{	1866	{
1714	clear_pending (EV_A_ (W)w);	1867	clear_pending (EV_A_ (W)w);
1715	if (expect_false (!ev_is_active (w)))	1868	if (expect_false (!ev_is_active (w)))
1716	return;	1869	return;
1717		1870
1718	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1871	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1719		1872
1720	{	1873	{
1721	int active = ((W)w)->active;	1874	int active = ((W)w)->active;
1722		1875
1723	if (expect_true (--active < --periodiccnt))	1876	if (expect_true (--active < --periodiccnt))
1724	{	1877	{
1725	periodics [active] = periodics [periodiccnt];	1878	periodics [active] = periodics [periodiccnt];
1726	adjustheap ((WT *)periodics, periodiccnt, active);	1879	adjustheap (periodics, periodiccnt, active);
1727	}	1880	}
1728	}	1881	}
1729		1882
1730	ev_stop (EV_A_ (W)w);	1883	ev_stop (EV_A_ (W)w);
1731	}	1884	}
…		…
1751	#endif	1904	#endif
1752	if (expect_false (ev_is_active (w)))	1905	if (expect_false (ev_is_active (w)))
1753	return;	1906	return;
1754		1907
1755	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1908	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		1909
		1910	evpipe_init (EV_A);
1756		1911
1757	{	1912	{
1758	#ifndef _WIN32	1913	#ifndef _WIN32
1759	sigset_t full, prev;	1914	sigset_t full, prev;
1760	sigfillset (&full);	1915	sigfillset (&full);
…		…
1767	sigprocmask (SIG_SETMASK, &prev, 0);	1922	sigprocmask (SIG_SETMASK, &prev, 0);
1768	#endif	1923	#endif
1769	}	1924	}
1770		1925
1771	ev_start (EV_A_ (W)w, 1);	1926	ev_start (EV_A_ (W)w, 1);
1772	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1927	wlist_add (&signals [w->signum - 1].head, (WL)w);
1773		1928
1774	if (!((WL)w)->next)	1929	if (!((WL)w)->next)
1775	{	1930	{
1776	#if _WIN32	1931	#if _WIN32
1777	signal (w->signum, sighandler);	1932	signal (w->signum, sighandler);
…		…
1790	{	1945	{
1791	clear_pending (EV_A_ (W)w);	1946	clear_pending (EV_A_ (W)w);
1792	if (expect_false (!ev_is_active (w)))	1947	if (expect_false (!ev_is_active (w)))
1793	return;	1948	return;
1794		1949
1795	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1950	wlist_del (&signals [w->signum - 1].head, (WL)w);
1796	ev_stop (EV_A_ (W)w);	1951	ev_stop (EV_A_ (W)w);
1797		1952
1798	if (!signals [w->signum - 1].head)	1953	if (!signals [w->signum - 1].head)
1799	signal (w->signum, SIG_DFL);	1954	signal (w->signum, SIG_DFL);
1800	}	1955	}
…		…
1807	#endif	1962	#endif
1808	if (expect_false (ev_is_active (w)))	1963	if (expect_false (ev_is_active (w)))
1809	return;	1964	return;
1810		1965
1811	ev_start (EV_A_ (W)w, 1);	1966	ev_start (EV_A_ (W)w, 1);
1812	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1967	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1813	}	1968	}
1814		1969
1815	void	1970	void
1816	ev_child_stop (EV_P_ ev_child *w)	1971	ev_child_stop (EV_P_ ev_child *w)
1817	{	1972	{
1818	clear_pending (EV_A_ (W)w);	1973	clear_pending (EV_A_ (W)w);
1819	if (expect_false (!ev_is_active (w)))	1974	if (expect_false (!ev_is_active (w)))
1820	return;	1975	return;
1821		1976
1822	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1977	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1823	ev_stop (EV_A_ (W)w);	1978	ev_stop (EV_A_ (W)w);
1824	}	1979	}
1825		1980
1826	#if EV_STAT_ENABLE	1981	#if EV_STAT_ENABLE
1827		1982
…		…
2169		2324
2170	#if EV_EMBED_ENABLE	2325	#if EV_EMBED_ENABLE
2171	void noinline	2326	void noinline
2172	ev_embed_sweep (EV_P_ ev_embed *w)	2327	ev_embed_sweep (EV_P_ ev_embed *w)
2173	{	2328	{
2174	ev_loop (w->loop, EVLOOP_NONBLOCK);	2329	ev_loop (w->other, EVLOOP_NONBLOCK);
2175	}	2330	}
2176		2331
2177	static void	2332	static void
2178	embed_cb (EV_P_ ev_io *io, int revents)	2333	embed_io_cb (EV_P_ ev_io *io, int revents)
2179	{	2334	{
2180	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2335	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2181		2336
2182	if (ev_cb (w))	2337	if (ev_cb (w))
2183	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2338	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2184	else	2339	else
2185	ev_embed_sweep (loop, w);	2340	ev_loop (w->other, EVLOOP_NONBLOCK);
2186	}	2341	}
		2342
		2343	static void
		2344	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2345	{
		2346	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2347
		2348	{
		2349	struct ev_loop *loop = w->other;
		2350
		2351	while (fdchangecnt)
		2352	{
		2353	fd_reify (EV_A);
		2354	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2355	}
		2356	}
		2357	}
		2358
		2359	#if 0
		2360	static void
		2361	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2362	{
		2363	ev_idle_stop (EV_A_ idle);
		2364	}
		2365	#endif
2187		2366
2188	void	2367	void
2189	ev_embed_start (EV_P_ ev_embed *w)	2368	ev_embed_start (EV_P_ ev_embed *w)
2190	{	2369	{
2191	if (expect_false (ev_is_active (w)))	2370	if (expect_false (ev_is_active (w)))
2192	return;	2371	return;
2193		2372
2194	{	2373	{
2195	struct ev_loop *loop = w->loop;	2374	struct ev_loop *loop = w->other;
2196	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2375	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2197	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2376	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2198	}	2377	}
2199		2378
2200	ev_set_priority (&w->io, ev_priority (w));	2379	ev_set_priority (&w->io, ev_priority (w));
2201	ev_io_start (EV_A_ &w->io);	2380	ev_io_start (EV_A_ &w->io);
2202		2381
		2382	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2383	ev_set_priority (&w->prepare, EV_MINPRI);
		2384	ev_prepare_start (EV_A_ &w->prepare);
		2385
		2386	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2387
2203	ev_start (EV_A_ (W)w, 1);	2388	ev_start (EV_A_ (W)w, 1);
2204	}	2389	}
2205		2390
2206	void	2391	void
2207	ev_embed_stop (EV_P_ ev_embed *w)	2392	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2209	clear_pending (EV_A_ (W)w);	2394	clear_pending (EV_A_ (W)w);
2210	if (expect_false (!ev_is_active (w)))	2395	if (expect_false (!ev_is_active (w)))
2211	return;	2396	return;
2212		2397
2213	ev_io_stop (EV_A_ &w->io);	2398	ev_io_stop (EV_A_ &w->io);
		2399	ev_prepare_stop (EV_A_ &w->prepare);
2214		2400
2215	ev_stop (EV_A_ (W)w);	2401	ev_stop (EV_A_ (W)w);
2216	}	2402	}
2217	#endif	2403	#endif
2218		2404
…		…
2243		2429
2244	ev_stop (EV_A_ (W)w);	2430	ev_stop (EV_A_ (W)w);
2245	}	2431	}
2246	#endif	2432	#endif
2247		2433
		2434	#if EV_ASYNC_ENABLE
		2435	void
		2436	ev_async_start (EV_P_ ev_async *w)
		2437	{
		2438	if (expect_false (ev_is_active (w)))
		2439	return;
		2440
		2441	evpipe_init (EV_A);
		2442
		2443	ev_start (EV_A_ (W)w, ++asynccnt);
		2444	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2445	asyncs [asynccnt - 1] = w;
		2446	}
		2447
		2448	void
		2449	ev_async_stop (EV_P_ ev_async *w)
		2450	{
		2451	clear_pending (EV_A_ (W)w);
		2452	if (expect_false (!ev_is_active (w)))
		2453	return;
		2454
		2455	{
		2456	int active = ((W)w)->active;
		2457	asyncs [active - 1] = asyncs [--asynccnt];
		2458	((W)asyncs [active - 1])->active = active;
		2459	}
		2460
		2461	ev_stop (EV_A_ (W)w);
		2462	}
		2463
		2464	void
		2465	ev_async_send (EV_P_ ev_async *w)
		2466	{
		2467	w->sent = 1;
		2468	evpipe_write (EV_A_ 0, 1);
		2469	}
		2470	#endif
		2471
2248	/*****************************************************************************/	2472	/*****************************************************************************/
2249		2473
2250	struct ev_once	2474	struct ev_once
2251	{	2475	{
2252	ev_io io;	2476	ev_io io;
…		…
2307	ev_timer_set (&once->to, timeout, 0.);	2531	ev_timer_set (&once->to, timeout, 0.);
2308	ev_timer_start (EV_A_ &once->to);	2532	ev_timer_start (EV_A_ &once->to);
2309	}	2533	}
2310	}	2534	}
2311		2535
		2536	#if EV_MULTIPLICITY
		2537	#include "ev_wrap.h"
		2538	#endif
		2539
2312	#ifdef __cplusplus	2540	#ifdef __cplusplus
2313	}	2541	}
2314	#endif	2542	#endif
2315		2543

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Comparing libev/ev.c (file contents): Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC vs. Revision 1.209 by root, Tue Feb 5 23:56:33 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC vs.
Revision 1.209 by root, Tue Feb 5 23:56:33 2008 UTC