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

Comparing libev/ev.c (file contents):
Revision 1.179 by root, Tue Dec 11 21:04:40 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
…		…
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); /* 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
794	}	867	}
795		868
796	/*****************************************************************************/	869	/*****************************************************************************/
797		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
798	static ev_child *childs [EV_PID_HASHSIZE];	908	static WL childs [EV_PID_HASHSIZE];
799		909
800	#ifndef _WIN32	910	#ifndef _WIN32
801		911
802	static ev_signal childev;	912	static ev_signal childev;
		913
		914	#ifndef WIFCONTINUED
		915	# define WIFCONTINUED(status) 0
		916	#endif
803		917
804	void inline_speed	918	void inline_speed
805	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)
806	{	920	{
807	ev_child *w;	921	ev_child *w;
		922	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
808		923
809	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	{
810	if (w->pid == pid \|\| !w->pid)	926	if ((w->pid == pid \|\| !w->pid)
		927	&& (!traced \|\| (w->flags & 1)))
811	{	928	{
812	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 */
813	w->rpid = pid;	930	w->rpid = pid;
814	w->rstatus = status;	931	w->rstatus = status;
815	ev_feed_event (EV_A_ (W)w, EV_CHILD);	932	ev_feed_event (EV_A_ (W)w, EV_CHILD);
816	}	933	}
		934	}
817	}	935	}
818		936
819	#ifndef WCONTINUED	937	#ifndef WCONTINUED
820	# define WCONTINUED 0	938	# define WCONTINUED 0
821	#endif	939	#endif
…		…
918	}	1036	}
919		1037
920	unsigned int	1038	unsigned int
921	ev_embeddable_backends (void)	1039	ev_embeddable_backends (void)
922	{	1040	{
923	return EVBACKEND_EPOLL	1041	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
924	\| EVBACKEND_KQUEUE	1042
925	\| 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;
926	}	1048	}
927		1049
928	unsigned int	1050	unsigned int
929	ev_backend (EV_P)	1051	ev_backend (EV_P)
930	{	1052	{
…		…
933		1055
934	unsigned int	1056	unsigned int
935	ev_loop_count (EV_P)	1057	ev_loop_count (EV_P)
936	{	1058	{
937	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;
938	}	1072	}
939		1073
940	static void noinline	1074	static void noinline
941	loop_init (EV_P_ unsigned int flags)	1075	loop_init (EV_P_ unsigned int flags)
942	{	1076	{
…		…
948	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1082	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
949	have_monotonic = 1;	1083	have_monotonic = 1;
950	}	1084	}
951	#endif	1085	#endif
952		1086
953	ev_rt_now = ev_time ();	1087	ev_rt_now = ev_time ();
954	mn_now = get_clock ();	1088	mn_now = get_clock ();
955	now_floor = mn_now;	1089	now_floor = mn_now;
956	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
957		1100
958	/* pid check not overridable via env */	1101	/* pid check not overridable via env */
959	#ifndef _WIN32	1102	#ifndef _WIN32
960	if (flags & EVFLAG_FORKCHECK)	1103	if (flags & EVFLAG_FORKCHECK)
961	curpid = getpid ();	1104	curpid = getpid ();
…		…
967	flags = atoi (getenv ("LIBEV_FLAGS"));	1110	flags = atoi (getenv ("LIBEV_FLAGS"));
968		1111
969	if (!(flags & 0x0000ffffUL))	1112	if (!(flags & 0x0000ffffUL))
970	flags \|= ev_recommended_backends ();	1113	flags \|= ev_recommended_backends ();
971		1114
972	backend = 0;
973	backend_fd = -1;
974	#if EV_USE_INOTIFY
975	fs_fd = -2;
976	#endif
977
978	#if EV_USE_PORT	1115	#if EV_USE_PORT
979	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1116	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
980	#endif	1117	#endif
981	#if EV_USE_KQUEUE	1118	#if EV_USE_KQUEUE
982	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1119	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
989	#endif	1126	#endif
990	#if EV_USE_SELECT	1127	#if EV_USE_SELECT
991	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1128	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
992	#endif	1129	#endif
993		1130
994	ev_init (&sigev, sigcb);	1131	ev_init (&pipeev, pipecb);
995	ev_set_priority (&sigev, EV_MAXPRI);	1132	ev_set_priority (&pipeev, EV_MAXPRI);
996	}	1133	}
997	}	1134	}
998		1135
999	static void noinline	1136	static void noinline
1000	loop_destroy (EV_P)	1137	loop_destroy (EV_P)
1001	{	1138	{
1002	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	}
1003		1149
1004	#if EV_USE_INOTIFY	1150	#if EV_USE_INOTIFY
1005	if (fs_fd >= 0)	1151	if (fs_fd >= 0)
1006	close (fs_fd);	1152	close (fs_fd);
1007	#endif	1153	#endif
…		…
1030	array_free (pending, [i]);	1176	array_free (pending, [i]);
1031	#if EV_IDLE_ENABLE	1177	#if EV_IDLE_ENABLE
1032	array_free (idle, [i]);	1178	array_free (idle, [i]);
1033	#endif	1179	#endif
1034	}	1180	}
		1181
		1182	ev_free (anfds); anfdmax = 0;
1035		1183
1036	/* have to use the microsoft-never-gets-it-right macro */	1184	/* have to use the microsoft-never-gets-it-right macro */
1037	array_free (fdchange, EMPTY);	1185	array_free (fdchange, EMPTY);
1038	array_free (timer, EMPTY);	1186	array_free (timer, EMPTY);
1039	#if EV_PERIODIC_ENABLE	1187	#if EV_PERIODIC_ENABLE
1040	array_free (periodic, EMPTY);	1188	array_free (periodic, EMPTY);
1041	#endif	1189	#endif
		1190	#if EV_FORK_ENABLE
		1191	array_free (fork, EMPTY);
		1192	#endif
1042	array_free (prepare, EMPTY);	1193	array_free (prepare, EMPTY);
1043	array_free (check, EMPTY);	1194	array_free (check, EMPTY);
		1195	#if EV_ASYNC_ENABLE
		1196	array_free (async, EMPTY);
		1197	#endif
1044		1198
1045	backend = 0;	1199	backend = 0;
1046	}	1200	}
1047		1201
1048	void inline_size infy_fork (EV_P);	1202	void inline_size infy_fork (EV_P);
…		…
1061	#endif	1215	#endif
1062	#if EV_USE_INOTIFY	1216	#if EV_USE_INOTIFY
1063	infy_fork (EV_A);	1217	infy_fork (EV_A);
1064	#endif	1218	#endif
1065		1219
1066	if (ev_is_active (&sigev))	1220	if (ev_is_active (&pipeev))
1067	{	1221	{
1068	/* 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
1069		1228
1070	ev_ref (EV_A);	1229	ev_ref (EV_A);
1071	ev_io_stop (EV_A_ &sigev);	1230	ev_io_stop (EV_A_ &pipeev);
1072	close (sigpipe [0]);	1231	close (evpipe [0]);
1073	close (sigpipe [1]);	1232	close (evpipe [1]);
1074		1233
1075	while (pipe (sigpipe))
1076	syserr ("(libev) error creating pipe");
1077
1078	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);
1079	}	1237	}
1080		1238
1081	postfork = 0;	1239	postfork = 0;
1082	}	1240	}
1083		1241
…		…
1105	}	1263	}
1106		1264
1107	void	1265	void
1108	ev_loop_fork (EV_P)	1266	ev_loop_fork (EV_P)
1109	{	1267	{
1110	postfork = 1;	1268	postfork = 1; /* must be in line with ev_default_fork */
1111	}	1269	}
1112		1270
1113	#endif	1271	#endif
1114		1272
1115	#if EV_MULTIPLICITY	1273	#if EV_MULTIPLICITY
…		…
1118	#else	1276	#else
1119	int	1277	int
1120	ev_default_loop (unsigned int flags)	1278	ev_default_loop (unsigned int flags)
1121	#endif	1279	#endif
1122	{	1280	{
1123	if (sigpipe [0] == sigpipe [1])
1124	if (pipe (sigpipe))
1125	return 0;
1126
1127	if (!ev_default_loop_ptr)	1281	if (!ev_default_loop_ptr)
1128	{	1282	{
1129	#if EV_MULTIPLICITY	1283	#if EV_MULTIPLICITY
1130	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1284	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1131	#else	1285	#else
…		…
1134		1288
1135	loop_init (EV_A_ flags);	1289	loop_init (EV_A_ flags);
1136		1290
1137	if (ev_backend (EV_A))	1291	if (ev_backend (EV_A))
1138	{	1292	{
1139	siginit (EV_A);
1140
1141	#ifndef _WIN32	1293	#ifndef _WIN32
1142	ev_signal_init (&childev, childcb, SIGCHLD);	1294	ev_signal_init (&childev, childcb, SIGCHLD);
1143	ev_set_priority (&childev, EV_MAXPRI);	1295	ev_set_priority (&childev, EV_MAXPRI);
1144	ev_signal_start (EV_A_ &childev);	1296	ev_signal_start (EV_A_ &childev);
1145	ev_unref (EV_A); /* child watcher should not keep loop alive */	1297	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1162	#ifndef _WIN32	1314	#ifndef _WIN32
1163	ev_ref (EV_A); /* child watcher */	1315	ev_ref (EV_A); /* child watcher */
1164	ev_signal_stop (EV_A_ &childev);	1316	ev_signal_stop (EV_A_ &childev);
1165	#endif	1317	#endif
1166		1318
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);	1319	loop_destroy (EV_A);
1174	}	1320	}
1175		1321
1176	void	1322	void
1177	ev_default_fork (void)	1323	ev_default_fork (void)
…		…
1179	#if EV_MULTIPLICITY	1325	#if EV_MULTIPLICITY
1180	struct ev_loop *loop = ev_default_loop_ptr;	1326	struct ev_loop *loop = ev_default_loop_ptr;
1181	#endif	1327	#endif
1182		1328
1183	if (backend)	1329	if (backend)
1184	postfork = 1;	1330	postfork = 1; /* must be in line with ev_loop_fork */
1185	}	1331	}
1186		1332
1187	/*****************************************************************************/	1333	/*****************************************************************************/
1188		1334
1189	void	1335	void
…		…
1215	void inline_size	1361	void inline_size
1216	timers_reify (EV_P)	1362	timers_reify (EV_P)
1217	{	1363	{
1218	while (timercnt && ((WT)timers [0])->at <= mn_now)	1364	while (timercnt && ((WT)timers [0])->at <= mn_now)
1219	{	1365	{
1220	ev_timer *w = timers [0];	1366	ev_timer w = (ev_timer )timers [0];
1221		1367
1222	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1368	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1223		1369
1224	/* first reschedule or stop timer */	1370	/* first reschedule or stop timer */
1225	if (w->repeat)	1371	if (w->repeat)
…		…
1228		1374
1229	((WT)w)->at += w->repeat;	1375	((WT)w)->at += w->repeat;
1230	if (((WT)w)->at < mn_now)	1376	if (((WT)w)->at < mn_now)
1231	((WT)w)->at = mn_now;	1377	((WT)w)->at = mn_now;
1232		1378
1233	downheap ((WT *)timers, timercnt, 0);	1379	downheap (timers, timercnt, 0);
1234	}	1380	}
1235	else	1381	else
1236	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1382	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1237		1383
1238	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1384	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1243	void inline_size	1389	void inline_size
1244	periodics_reify (EV_P)	1390	periodics_reify (EV_P)
1245	{	1391	{
1246	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1392	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1247	{	1393	{
1248	ev_periodic *w = periodics [0];	1394	ev_periodic w = (ev_periodic )periodics [0];
1249		1395
1250	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1396	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1251		1397
1252	/* first reschedule or stop timer */	1398	/* first reschedule or stop timer */
1253	if (w->reschedule_cb)	1399	if (w->reschedule_cb)
1254	{	1400	{
1255	((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);
1256	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));
1257	downheap ((WT *)periodics, periodiccnt, 0);	1403	downheap (periodics, periodiccnt, 0);
1258	}	1404	}
1259	else if (w->interval)	1405	else if (w->interval)
1260	{	1406	{
1261	((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;
1262	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;
1263	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));
1264	downheap ((WT *)periodics, periodiccnt, 0);	1410	downheap (periodics, periodiccnt, 0);
1265	}	1411	}
1266	else	1412	else
1267	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1413	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1268		1414
1269	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1415	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1276	int i;	1422	int i;
1277		1423
1278	/* adjust periodics after time jump */	1424	/* adjust periodics after time jump */
1279	for (i = 0; i < periodiccnt; ++i)	1425	for (i = 0; i < periodiccnt; ++i)
1280	{	1426	{
1281	ev_periodic *w = periodics [i];	1427	ev_periodic w = (ev_periodic )periodics [i];
1282		1428
1283	if (w->reschedule_cb)	1429	if (w->reschedule_cb)
1284	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1430	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1285	else if (w->interval)	1431	else if (w->interval)
1286	((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;
1287	}	1433	}
1288		1434
1289	/* now rebuild the heap */	1435	/* now rebuild the heap */
1290	for (i = periodiccnt >> 1; i--; )	1436	for (i = periodiccnt >> 1; i--; )
1291	downheap ((WT *)periodics, periodiccnt, i);	1437	downheap (periodics, periodiccnt, i);
1292	}	1438	}
1293	#endif	1439	#endif
1294		1440
1295	#if EV_IDLE_ENABLE	1441	#if EV_IDLE_ENABLE
1296	void inline_size	1442	void inline_size
…		…
1444	/* update fd-related kernel structures */	1590	/* update fd-related kernel structures */
1445	fd_reify (EV_A);	1591	fd_reify (EV_A);
1446		1592
1447	/* calculate blocking time */	1593	/* calculate blocking time */
1448	{	1594	{
1449	ev_tstamp block;	1595	ev_tstamp waittime = 0.;
		1596	ev_tstamp sleeptime = 0.;
1450		1597
1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1598	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1452	block = 0.; /* do not block at all */
1453	else
1454	{	1599	{
1455	/* update time to cancel out callback processing overhead */	1600	/* update time to cancel out callback processing overhead */
1456	time_update (EV_A_ 1e100);	1601	time_update (EV_A_ 1e100);
1457		1602
1458	block = MAX_BLOCKTIME;	1603	waittime = MAX_BLOCKTIME;
1459		1604
1460	if (timercnt)	1605	if (timercnt)
1461	{	1606	{
1462	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1607	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1463	if (block > to) block = to;	1608	if (waittime > to) waittime = to;
1464	}	1609	}
1465		1610
1466	#if EV_PERIODIC_ENABLE	1611	#if EV_PERIODIC_ENABLE
1467	if (periodiccnt)	1612	if (periodiccnt)
1468	{	1613	{
1469	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;
1470	if (block > to) block = to;	1615	if (waittime > to) waittime = to;
1471	}	1616	}
1472	#endif	1617	#endif
1473		1618
1474	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	}
1475	}	1632	}
1476		1633
1477	++loop_count;	1634	++loop_count;
1478	backend_poll (EV_A_ block);	1635	backend_poll (EV_A_ waittime);
1479		1636
1480	/* update ev_rt_now, do magic */	1637	/* update ev_rt_now, do magic */
1481	time_update (EV_A_ block);	1638	time_update (EV_A_ waittime + sleeptime);
1482	}	1639	}
1483		1640
1484	/* queue pending timers and reschedule them */	1641	/* queue pending timers and reschedule them */
1485	timers_reify (EV_A); /* relative timers called last */	1642	timers_reify (EV_A); /* relative timers called last */
1486	#if EV_PERIODIC_ENABLE	1643	#if EV_PERIODIC_ENABLE
…		…
1598		1755
1599	assert (("ev_io_start called with negative fd", fd >= 0));	1756	assert (("ev_io_start called with negative fd", fd >= 0));
1600		1757
1601	ev_start (EV_A_ (W)w, 1);	1758	ev_start (EV_A_ (W)w, 1);
1602	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1759	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1603	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1760	wlist_add (&anfds[fd].head, (WL)w);
1604		1761
1605	fd_change (EV_A_ fd);	1762	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1763	w->events &= ~EV_IOFDSET;
1606	}	1764	}
1607		1765
1608	void noinline	1766	void noinline
1609	ev_io_stop (EV_P_ ev_io *w)	1767	ev_io_stop (EV_P_ ev_io *w)
1610	{	1768	{
…		…
1612	if (expect_false (!ev_is_active (w)))	1770	if (expect_false (!ev_is_active (w)))
1613	return;	1771	return;
1614		1772
1615	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));
1616		1774
1617	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1775	wlist_del (&anfds[w->fd].head, (WL)w);
1618	ev_stop (EV_A_ (W)w);	1776	ev_stop (EV_A_ (W)w);
1619		1777
1620	fd_change (EV_A_ w->fd);	1778	fd_change (EV_A_ w->fd, 1);
1621	}	1779	}
1622		1780
1623	void noinline	1781	void noinline
1624	ev_timer_start (EV_P_ ev_timer *w)	1782	ev_timer_start (EV_P_ ev_timer *w)
1625	{	1783	{
…		…
1629	((WT)w)->at += mn_now;	1787	((WT)w)->at += mn_now;
1630		1788
1631	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.));
1632		1790
1633	ev_start (EV_A_ (W)w, ++timercnt);	1791	ev_start (EV_A_ (W)w, ++timercnt);
1634	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1792	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1635	timers [timercnt - 1] = w;	1793	timers [timercnt - 1] = (WT)w;
1636	upheap ((WT *)timers, timercnt - 1);	1794	upheap (timers, timercnt - 1);
1637		1795
1638	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1796	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1639	}	1797	}
1640		1798
1641	void noinline	1799	void noinline
…		…
1643	{	1801	{
1644	clear_pending (EV_A_ (W)w);	1802	clear_pending (EV_A_ (W)w);
1645	if (expect_false (!ev_is_active (w)))	1803	if (expect_false (!ev_is_active (w)))
1646	return;	1804	return;
1647		1805
1648	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1806	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1649		1807
1650	{	1808	{
1651	int active = ((W)w)->active;	1809	int active = ((W)w)->active;
1652		1810
1653	if (expect_true (--active < --timercnt))	1811	if (expect_true (--active < --timercnt))
1654	{	1812	{
1655	timers [active] = timers [timercnt];	1813	timers [active] = timers [timercnt];
1656	adjustheap ((WT *)timers, timercnt, active);	1814	adjustheap (timers, timercnt, active);
1657	}	1815	}
1658	}	1816	}
1659		1817
1660	((WT)w)->at -= mn_now;	1818	((WT)w)->at -= mn_now;
1661		1819
…		…
1668	if (ev_is_active (w))	1826	if (ev_is_active (w))
1669	{	1827	{
1670	if (w->repeat)	1828	if (w->repeat)
1671	{	1829	{
1672	((WT)w)->at = mn_now + w->repeat;	1830	((WT)w)->at = mn_now + w->repeat;
1673	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1831	adjustheap (timers, timercnt, ((W)w)->active - 1);
1674	}	1832	}
1675	else	1833	else
1676	ev_timer_stop (EV_A_ w);	1834	ev_timer_stop (EV_A_ w);
1677	}	1835	}
1678	else if (w->repeat)	1836	else if (w->repeat)
…		…
1699	}	1857	}
1700	else	1858	else
1701	((WT)w)->at = w->offset;	1859	((WT)w)->at = w->offset;
1702		1860
1703	ev_start (EV_A_ (W)w, ++periodiccnt);	1861	ev_start (EV_A_ (W)w, ++periodiccnt);
1704	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1862	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1705	periodics [periodiccnt - 1] = w;	1863	periodics [periodiccnt - 1] = (WT)w;
1706	upheap ((WT *)periodics, periodiccnt - 1);	1864	upheap (periodics, periodiccnt - 1);
1707		1865
1708	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1866	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1709	}	1867	}
1710		1868
1711	void noinline	1869	void noinline
…		…
1713	{	1871	{
1714	clear_pending (EV_A_ (W)w);	1872	clear_pending (EV_A_ (W)w);
1715	if (expect_false (!ev_is_active (w)))	1873	if (expect_false (!ev_is_active (w)))
1716	return;	1874	return;
1717		1875
1718	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1876	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1719		1877
1720	{	1878	{
1721	int active = ((W)w)->active;	1879	int active = ((W)w)->active;
1722		1880
1723	if (expect_true (--active < --periodiccnt))	1881	if (expect_true (--active < --periodiccnt))
1724	{	1882	{
1725	periodics [active] = periodics [periodiccnt];	1883	periodics [active] = periodics [periodiccnt];
1726	adjustheap ((WT *)periodics, periodiccnt, active);	1884	adjustheap (periodics, periodiccnt, active);
1727	}	1885	}
1728	}	1886	}
1729		1887
1730	ev_stop (EV_A_ (W)w);	1888	ev_stop (EV_A_ (W)w);
1731	}	1889	}
…		…
1752	if (expect_false (ev_is_active (w)))	1910	if (expect_false (ev_is_active (w)))
1753	return;	1911	return;
1754		1912
1755	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));
1756		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
1757	ev_start (EV_A_ (W)w, 1);	1931	ev_start (EV_A_ (W)w, 1);
1758	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1759	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1932	wlist_add (&signals [w->signum - 1].head, (WL)w);
1760		1933
1761	if (!((WL)w)->next)	1934	if (!((WL)w)->next)
1762	{	1935	{
1763	#if _WIN32	1936	#if _WIN32
1764	signal (w->signum, sighandler);	1937	signal (w->signum, sighandler);
…		…
1777	{	1950	{
1778	clear_pending (EV_A_ (W)w);	1951	clear_pending (EV_A_ (W)w);
1779	if (expect_false (!ev_is_active (w)))	1952	if (expect_false (!ev_is_active (w)))
1780	return;	1953	return;
1781		1954
1782	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1955	wlist_del (&signals [w->signum - 1].head, (WL)w);
1783	ev_stop (EV_A_ (W)w);	1956	ev_stop (EV_A_ (W)w);
1784		1957
1785	if (!signals [w->signum - 1].head)	1958	if (!signals [w->signum - 1].head)
1786	signal (w->signum, SIG_DFL);	1959	signal (w->signum, SIG_DFL);
1787	}	1960	}
…		…
1794	#endif	1967	#endif
1795	if (expect_false (ev_is_active (w)))	1968	if (expect_false (ev_is_active (w)))
1796	return;	1969	return;
1797		1970
1798	ev_start (EV_A_ (W)w, 1);	1971	ev_start (EV_A_ (W)w, 1);
1799	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1972	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1800	}	1973	}
1801		1974
1802	void	1975	void
1803	ev_child_stop (EV_P_ ev_child *w)	1976	ev_child_stop (EV_P_ ev_child *w)
1804	{	1977	{
1805	clear_pending (EV_A_ (W)w);	1978	clear_pending (EV_A_ (W)w);
1806	if (expect_false (!ev_is_active (w)))	1979	if (expect_false (!ev_is_active (w)))
1807	return;	1980	return;
1808		1981
1809	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1982	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1810	ev_stop (EV_A_ (W)w);	1983	ev_stop (EV_A_ (W)w);
1811	}	1984	}
1812		1985
1813	#if EV_STAT_ENABLE	1986	#if EV_STAT_ENABLE
1814		1987
…		…
2156		2329
2157	#if EV_EMBED_ENABLE	2330	#if EV_EMBED_ENABLE
2158	void noinline	2331	void noinline
2159	ev_embed_sweep (EV_P_ ev_embed *w)	2332	ev_embed_sweep (EV_P_ ev_embed *w)
2160	{	2333	{
2161	ev_loop (w->loop, EVLOOP_NONBLOCK);	2334	ev_loop (w->other, EVLOOP_NONBLOCK);
2162	}	2335	}
2163		2336
2164	static void	2337	static void
2165	embed_cb (EV_P_ ev_io *io, int revents)	2338	embed_io_cb (EV_P_ ev_io *io, int revents)
2166	{	2339	{
2167	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2340	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2168		2341
2169	if (ev_cb (w))	2342	if (ev_cb (w))
2170	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2343	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2171	else	2344	else
2172	ev_embed_sweep (loop, w);	2345	ev_loop (w->other, EVLOOP_NONBLOCK);
2173	}	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
2174		2371
2175	void	2372	void
2176	ev_embed_start (EV_P_ ev_embed *w)	2373	ev_embed_start (EV_P_ ev_embed *w)
2177	{	2374	{
2178	if (expect_false (ev_is_active (w)))	2375	if (expect_false (ev_is_active (w)))
2179	return;	2376	return;
2180		2377
2181	{	2378	{
2182	struct ev_loop *loop = w->loop;	2379	struct ev_loop *loop = w->other;
2183	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 ()));
2184	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2381	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2185	}	2382	}
2186		2383
2187	ev_set_priority (&w->io, ev_priority (w));	2384	ev_set_priority (&w->io, ev_priority (w));
2188	ev_io_start (EV_A_ &w->io);	2385	ev_io_start (EV_A_ &w->io);
2189		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
2190	ev_start (EV_A_ (W)w, 1);	2393	ev_start (EV_A_ (W)w, 1);
2191	}	2394	}
2192		2395
2193	void	2396	void
2194	ev_embed_stop (EV_P_ ev_embed *w)	2397	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2196	clear_pending (EV_A_ (W)w);	2399	clear_pending (EV_A_ (W)w);
2197	if (expect_false (!ev_is_active (w)))	2400	if (expect_false (!ev_is_active (w)))
2198	return;	2401	return;
2199		2402
2200	ev_io_stop (EV_A_ &w->io);	2403	ev_io_stop (EV_A_ &w->io);
		2404	ev_prepare_stop (EV_A_ &w->prepare);
2201		2405
2202	ev_stop (EV_A_ (W)w);	2406	ev_stop (EV_A_ (W)w);
2203	}	2407	}
2204	#endif	2408	#endif
2205		2409
…		…
2230		2434
2231	ev_stop (EV_A_ (W)w);	2435	ev_stop (EV_A_ (W)w);
2232	}	2436	}
2233	#endif	2437	#endif
2234		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
2235	/*****************************************************************************/	2477	/*****************************************************************************/
2236		2478
2237	struct ev_once	2479	struct ev_once
2238	{	2480	{
2239	ev_io io;	2481	ev_io io;
…		…
2294	ev_timer_set (&once->to, timeout, 0.);	2536	ev_timer_set (&once->to, timeout, 0.);
2295	ev_timer_start (EV_A_ &once->to);	2537	ev_timer_start (EV_A_ &once->to);
2296	}	2538	}
2297	}	2539	}
2298		2540
		2541	#if EV_MULTIPLICITY
		2542	#include "ev_wrap.h"
		2543	#endif
		2544
2299	#ifdef __cplusplus	2545	#ifdef __cplusplus
2300	}	2546	}
2301	#endif	2547	#endif
2302		2548

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Comparing libev/ev.c (file contents): Revision 1.179 by root, Tue Dec 11 21:04:40 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 1.179 by root, Tue Dec 11 21:04:40 2007 UTC vs.
Revision 1.212 by root, Tue Feb 19 19:01:13 2008 UTC