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Comparing libev/ev.c (file contents):
Revision 1.264 by root, Mon Oct 13 23:20:12 2008 UTC vs.
Revision 1.285 by root, Wed Apr 15 19:35:53 2009 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 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 modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# endif
		63
52	# if HAVE_CLOCK_GETTIME	64	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	65	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	66	# define EV_USE_MONOTONIC 1
55	# endif	67	# endif
56	# ifndef EV_USE_REALTIME	68	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	69	# define EV_USE_REALTIME 0
58	# endif	70	# endif
59	# else	71	# else
60	# ifndef EV_USE_MONOTONIC	72	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	73	# define EV_USE_MONOTONIC 0
62	# endif	74	# endif
…		…
164	# endif	176	# endif
165	#endif	177	#endif
166		178
167	/* this block tries to deduce configuration from header-defined symbols and defaults */	179	/* this block tries to deduce configuration from header-defined symbols and defaults */
168		180
		181	#ifndef EV_USE_CLOCK_SYSCALL
		182	# if __linux && __GLIBC__ >= 2
		183	# define EV_USE_CLOCK_SYSCALL 1
		184	# else
		185	# define EV_USE_CLOCK_SYSCALL 0
		186	# endif
		187	#endif
		188
169	#ifndef EV_USE_MONOTONIC	189	#ifndef EV_USE_MONOTONIC
170	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171	# define EV_USE_MONOTONIC 1	191	# define EV_USE_MONOTONIC 1
172	# else	192	# else
173	# define EV_USE_MONOTONIC 0	193	# define EV_USE_MONOTONIC 0
174	# endif	194	# endif
175	#endif	195	#endif
176		196
177	#ifndef EV_USE_REALTIME	197	#ifndef EV_USE_REALTIME
178	# define EV_USE_REALTIME 0	198	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
179	#endif	199	#endif
180		200
181	#ifndef EV_USE_NANOSLEEP	201	#ifndef EV_USE_NANOSLEEP
182	# if _POSIX_C_SOURCE >= 199309L	202	# if _POSIX_C_SOURCE >= 199309L
183	# define EV_USE_NANOSLEEP 1	203	# define EV_USE_NANOSLEEP 1
…		…
287	# endif	307	# endif
288	#endif	308	#endif
289		309
290	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
291	# include <sys/utsname.h>	311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
292	# include <sys/inotify.h>	313	# include <sys/inotify.h>
293	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	314	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
294	# ifndef IN_DONT_FOLLOW	315	# ifndef IN_DONT_FOLLOW
295	# undef EV_USE_INOTIFY	316	# undef EV_USE_INOTIFY
296	# define EV_USE_INOTIFY 0	317	# define EV_USE_INOTIFY 0
297	# endif	318	# endif
298	#endif	319	#endif
299		320
300	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
301	# include <winsock.h>	322	# include <winsock.h>
		323	#endif
		324
		325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		326	/* which makes programs even slower. might work on other unices, too. */
		327	#if EV_USE_CLOCK_SYSCALL
		328	# include <syscall.h>
		329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		330	# undef EV_USE_MONOTONIC
		331	# define EV_USE_MONOTONIC 1
302	#endif	332	#endif
303		333
304	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
305	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
306	# include <stdint.h>	336	# include <stdint.h>
…		…
367	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
368		398
369	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
370	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
371		401
372	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
373	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	403	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
374	/* giving it a reasonably high chance of working on typical architetcures */	404	/* giving it a reasonably high chance of working on typical architetcures */
		405	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		406	#endif
		407
		408	#if EV_USE_MONOTONIC
375	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
376	#endif	410	#endif
377		411
378	#ifdef _WIN32	412	#ifdef _WIN32
379	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
388	{	422	{
389	syserr_cb = cb;	423	syserr_cb = cb;
390	}	424	}
391		425
392	static void noinline	426	static void noinline
393	syserr (const char *msg)	427	ev_syserr (const char *msg)
394	{	428	{
395	if (!msg)	429	if (!msg)
396	msg = "(libev) system error";	430	msg = "(libev) system error";
397		431
398	if (syserr_cb)	432	if (syserr_cb)
…		…
449	typedef struct	483	typedef struct
450	{	484	{
451	WL head;	485	WL head;
452	unsigned char events;	486	unsigned char events;
453	unsigned char reify;	487	unsigned char reify;
		488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
		489	unsigned char unused;
		490	#if EV_USE_EPOLL
		491	unsigned int egen; /* generation counter to counter epoll bugs */
		492	#endif
454	#if EV_SELECT_IS_WINSOCKET	493	#if EV_SELECT_IS_WINSOCKET
455	SOCKET handle;	494	SOCKET handle;
456	#endif	495	#endif
457	} ANFD;	496	} ANFD;
458		497
…		…
518		557
519	ev_tstamp	558	ev_tstamp
520	ev_time (void)	559	ev_time (void)
521	{	560	{
522	#if EV_USE_REALTIME	561	#if EV_USE_REALTIME
		562	if (expect_true (have_realtime))
		563	{
523	struct timespec ts;	564	struct timespec ts;
524	clock_gettime (CLOCK_REALTIME, &ts);	565	clock_gettime (CLOCK_REALTIME, &ts);
525	return ts.tv_sec + ts.tv_nsec * 1e-9;	566	return ts.tv_sec + ts.tv_nsec * 1e-9;
526	#else	567	}
		568	#endif
		569
527	struct timeval tv;	570	struct timeval tv;
528	gettimeofday (&tv, 0);	571	gettimeofday (&tv, 0);
529	return tv.tv_sec + tv.tv_usec * 1e-6;	572	return tv.tv_sec + tv.tv_usec * 1e-6;
530	#endif
531	}	573	}
532		574
533	ev_tstamp inline_size	575	inline_size ev_tstamp
534	get_clock (void)	576	get_clock (void)
535	{	577	{
536	#if EV_USE_MONOTONIC	578	#if EV_USE_MONOTONIC
537	if (expect_true (have_monotonic))	579	if (expect_true (have_monotonic))
538	{	580	{
…		…
583		625
584	/*****************************************************************************/	626	/*****************************************************************************/
585		627
586	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	628	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
587		629
588	int inline_size	630	inline_size int
589	array_nextsize (int elem, int cur, int cnt)	631	array_nextsize (int elem, int cur, int cnt)
590	{	632	{
591	int ncur = cur + 1;	633	int ncur = cur + 1;
592		634
593	do	635	do
…		…
610	array_realloc (int elem, void *base, int *cur, int cnt)	652	array_realloc (int elem, void *base, int *cur, int cnt)
611	{	653	{
612	*cur = array_nextsize (elem, *cur, cnt);	654	*cur = array_nextsize (elem, *cur, cnt);
613	return ev_realloc (base, elem * *cur);	655	return ev_realloc (base, elem * *cur);
614	}	656	}
		657
		658	#define array_init_zero(base,count) \
		659	memset ((void *)(base), 0, sizeof (*(base)) * (count))
615		660
616	#define array_needsize(type,base,cur,cnt,init) \	661	#define array_needsize(type,base,cur,cnt,init) \
617	if (expect_false ((cnt) > (cur))) \	662	if (expect_false ((cnt) > (cur))) \
618	{ \	663	{ \
619	int ocur_ = (cur); \	664	int ocur_ = (cur); \
…		…
631	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	676	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
632	}	677	}
633	#endif	678	#endif
634		679
635	#define array_free(stem, idx) \	680	#define array_free(stem, idx) \
636	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
637		682
638	/*****************************************************************************/	683	/*****************************************************************************/
639		684
640	void noinline	685	void noinline
641	ev_feed_event (EV_P_ void *w, int revents)	686	ev_feed_event (EV_P_ void *w, int revents)
…		…
652	pendings [pri][w_->pending - 1].w = w_;	697	pendings [pri][w_->pending - 1].w = w_;
653	pendings [pri][w_->pending - 1].events = revents;	698	pendings [pri][w_->pending - 1].events = revents;
654	}	699	}
655	}	700	}
656		701
657	void inline_speed	702	inline_speed void
		703	feed_reverse (EV_P_ W w)
		704	{
		705	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		706	rfeeds [rfeedcnt++] = w;
		707	}
		708
		709	inline_size void
		710	feed_reverse_done (EV_P_ int revents)
		711	{
		712	do
		713	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		714	while (rfeedcnt);
		715	}
		716
		717	inline_speed void
658	queue_events (EV_P_ W *events, int eventcnt, int type)	718	queue_events (EV_P_ W *events, int eventcnt, int type)
659	{	719	{
660	int i;	720	int i;
661		721
662	for (i = 0; i < eventcnt; ++i)	722	for (i = 0; i < eventcnt; ++i)
663	ev_feed_event (EV_A_ events [i], type);	723	ev_feed_event (EV_A_ events [i], type);
664	}	724	}
665		725
666	/*****************************************************************************/	726	/*****************************************************************************/
667		727
668	void inline_size	728	inline_speed void
669	anfds_init (ANFD *base, int count)
670	{
671	while (count--)
672	{
673	base->head = 0;
674	base->events = EV_NONE;
675	base->reify = 0;
676
677	++base;
678	}
679	}
680
681	void inline_speed
682	fd_event (EV_P_ int fd, int revents)	729	fd_event (EV_P_ int fd, int revents)
683	{	730	{
684	ANFD *anfd = anfds + fd;	731	ANFD *anfd = anfds + fd;
685	ev_io *w;	732	ev_io *w;
686		733
…		…
698	{	745	{
699	if (fd >= 0 && fd < anfdmax)	746	if (fd >= 0 && fd < anfdmax)
700	fd_event (EV_A_ fd, revents);	747	fd_event (EV_A_ fd, revents);
701	}	748	}
702		749
703	void inline_size	750	inline_size void
704	fd_reify (EV_P)	751	fd_reify (EV_P)
705	{	752	{
706	int i;	753	int i;
707		754
708	for (i = 0; i < fdchangecnt; ++i)	755	for (i = 0; i < fdchangecnt; ++i)
…		…
723	#ifdef EV_FD_TO_WIN32_HANDLE	770	#ifdef EV_FD_TO_WIN32_HANDLE
724	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
725	#else	772	#else
726	anfd->handle = _get_osfhandle (fd);	773	anfd->handle = _get_osfhandle (fd);
727	#endif	774	#endif
728	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	775	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
729	}	776	}
730	#endif	777	#endif
731		778
732	{	779	{
733	unsigned char o_events = anfd->events;	780	unsigned char o_events = anfd->events;
734	unsigned char o_reify = anfd->reify;	781	unsigned char o_reify = anfd->reify;
735		782
736	anfd->reify = 0;	783	anfd->reify = 0;
737	anfd->events = events;	784	anfd->events = events;
738		785
739	if (o_events != events || o_reify & EV_IOFDSET)	786	if (o_events != events || o_reify & EV__IOFDSET)
740	backend_modify (EV_A_ fd, o_events, events);	787	backend_modify (EV_A_ fd, o_events, events);
741	}	788	}
742	}	789	}
743		790
744	fdchangecnt = 0;	791	fdchangecnt = 0;
745	}	792	}
746		793
747	void inline_size	794	inline_size void
748	fd_change (EV_P_ int fd, int flags)	795	fd_change (EV_P_ int fd, int flags)
749	{	796	{
750	unsigned char reify = anfds [fd].reify;	797	unsigned char reify = anfds [fd].reify;
751	anfds [fd].reify |= flags;	798	anfds [fd].reify |= flags;
752		799
…		…
756	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
757	fdchanges [fdchangecnt - 1] = fd;	804	fdchanges [fdchangecnt - 1] = fd;
758	}	805	}
759	}	806	}
760		807
761	void inline_speed	808	inline_speed void
762	fd_kill (EV_P_ int fd)	809	fd_kill (EV_P_ int fd)
763	{	810	{
764	ev_io *w;	811	ev_io *w;
765		812
766	while ((w = (ev_io *)anfds [fd].head))	813	while ((w = (ev_io *)anfds [fd].head))
…		…
768	ev_io_stop (EV_A_ w);	815	ev_io_stop (EV_A_ w);
769	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	816	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
770	}	817	}
771	}	818	}
772		819
773	int inline_size	820	inline_size int
774	fd_valid (int fd)	821	fd_valid (int fd)
775	{	822	{
776	#ifdef _WIN32	823	#ifdef _WIN32
777	return _get_osfhandle (fd) != -1;	824	return _get_osfhandle (fd) != -1;
778	#else	825	#else
…		…
814		861
815	for (fd = 0; fd < anfdmax; ++fd)	862	for (fd = 0; fd < anfdmax; ++fd)
816	if (anfds [fd].events)	863	if (anfds [fd].events)
817	{	864	{
818	anfds [fd].events = 0;	865	anfds [fd].events = 0;
		866	anfds [fd].emask = 0;
819	fd_change (EV_A_ fd, EV_IOFDSET | 1);	867	fd_change (EV_A_ fd, EV__IOFDSET | 1);
820	}	868	}
821	}	869	}
822		870
823	/*****************************************************************************/	871	/*****************************************************************************/
824		872
…		…
840	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	888	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
841	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	889	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
842	#define UPHEAP_DONE(p,k) ((p) == (k))	890	#define UPHEAP_DONE(p,k) ((p) == (k))
843		891
844	/* away from the root */	892	/* away from the root */
845	void inline_speed	893	inline_speed void
846	downheap (ANHE *heap, int N, int k)	894	downheap (ANHE *heap, int N, int k)
847	{	895	{
848	ANHE he = heap [k];	896	ANHE he = heap [k];
849	ANHE *E = heap + N + HEAP0;	897	ANHE *E = heap + N + HEAP0;
850		898
…		…
890	#define HEAP0 1	938	#define HEAP0 1
891	#define HPARENT(k) ((k) >> 1)	939	#define HPARENT(k) ((k) >> 1)
892	#define UPHEAP_DONE(p,k) (!(p))	940	#define UPHEAP_DONE(p,k) (!(p))
893		941
894	/* away from the root */	942	/* away from the root */
895	void inline_speed	943	inline_speed void
896	downheap (ANHE *heap, int N, int k)	944	downheap (ANHE *heap, int N, int k)
897	{	945	{
898	ANHE he = heap [k];	946	ANHE he = heap [k];
899		947
900	for (;;)	948	for (;;)
…		…
920	ev_active (ANHE_w (he)) = k;	968	ev_active (ANHE_w (he)) = k;
921	}	969	}
922	#endif	970	#endif
923		971
924	/* towards the root */	972	/* towards the root */
925	void inline_speed	973	inline_speed void
926	upheap (ANHE *heap, int k)	974	upheap (ANHE *heap, int k)
927	{	975	{
928	ANHE he = heap [k];	976	ANHE he = heap [k];
929		977
930	for (;;)	978	for (;;)
…		…
941		989
942	heap [k] = he;	990	heap [k] = he;
943	ev_active (ANHE_w (he)) = k;	991	ev_active (ANHE_w (he)) = k;
944	}	992	}
945		993
946	void inline_size	994	inline_size void
947	adjustheap (ANHE *heap, int N, int k)	995	adjustheap (ANHE *heap, int N, int k)
948	{	996	{
949	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	997	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
950	upheap (heap, k);	998	upheap (heap, k);
951	else	999	else
952	downheap (heap, N, k);	1000	downheap (heap, N, k);
953	}	1001	}
954		1002
955	/* rebuild the heap: this function is used only once and executed rarely */	1003	/* rebuild the heap: this function is used only once and executed rarely */
956	void inline_size	1004	inline_size void
957	reheap (ANHE *heap, int N)	1005	reheap (ANHE *heap, int N)
958	{	1006	{
959	int i;	1007	int i;
960		1008
961	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1009	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
975	static ANSIG *signals;	1023	static ANSIG *signals;
976	static int signalmax;	1024	static int signalmax;
977		1025
978	static EV_ATOMIC_T gotsig;	1026	static EV_ATOMIC_T gotsig;
979		1027
980	void inline_size
981	signals_init (ANSIG *base, int count)
982	{
983	while (count--)
984	{
985	base->head = 0;
986	base->gotsig = 0;
987
988	++base;
989	}
990	}
991
992	/*****************************************************************************/	1028	/*****************************************************************************/
993		1029
994	void inline_speed	1030	inline_speed void
995	fd_intern (int fd)	1031	fd_intern (int fd)
996	{	1032	{
997	#ifdef _WIN32	1033	#ifdef _WIN32
998	unsigned long arg = 1;	1034	unsigned long arg = 1;
999	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1035	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1017	}	1053	}
1018	else	1054	else
1019	#endif	1055	#endif
1020	{	1056	{
1021	while (pipe (evpipe))	1057	while (pipe (evpipe))
1022	syserr ("(libev) error creating signal/async pipe");	1058	ev_syserr ("(libev) error creating signal/async pipe");
1023		1059
1024	fd_intern (evpipe [0]);	1060	fd_intern (evpipe [0]);
1025	fd_intern (evpipe [1]);	1061	fd_intern (evpipe [1]);
1026	ev_io_set (&pipeev, evpipe [0], EV_READ);	1062	ev_io_set (&pipeev, evpipe [0], EV_READ);
1027	}	1063	}
…		…
1029	ev_io_start (EV_A_ &pipeev);	1065	ev_io_start (EV_A_ &pipeev);
1030	ev_unref (EV_A); /* watcher should not keep loop alive */	1066	ev_unref (EV_A); /* watcher should not keep loop alive */
1031	}	1067	}
1032	}	1068	}
1033		1069
1034	void inline_size	1070	inline_size void
1035	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1071	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1036	{	1072	{
1037	if (!*flag)	1073	if (!*flag)
1038	{	1074	{
1039	int old_errno = errno; /* save errno because write might clobber it */	1075	int old_errno = errno; /* save errno because write might clobber it */
…		…
1117	ev_feed_signal_event (EV_P_ int signum)	1153	ev_feed_signal_event (EV_P_ int signum)
1118	{	1154	{
1119	WL w;	1155	WL w;
1120		1156
1121	#if EV_MULTIPLICITY	1157	#if EV_MULTIPLICITY
1122	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1158	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1123	#endif	1159	#endif
1124		1160
1125	--signum;	1161	--signum;
1126		1162
1127	if (signum < 0 || signum >= signalmax)	1163	if (signum < 0 || signum >= signalmax)
…		…
1143		1179
1144	#ifndef WIFCONTINUED	1180	#ifndef WIFCONTINUED
1145	# define WIFCONTINUED(status) 0	1181	# define WIFCONTINUED(status) 0
1146	#endif	1182	#endif
1147		1183
1148	void inline_speed	1184	inline_speed void
1149	child_reap (EV_P_ int chain, int pid, int status)	1185	child_reap (EV_P_ int chain, int pid, int status)
1150	{	1186	{
1151	ev_child *w;	1187	ev_child *w;
1152	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1188	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1153		1189
…		…
1256	/* kqueue is borked on everything but netbsd apparently */	1292	/* kqueue is borked on everything but netbsd apparently */
1257	/* it usually doesn't work correctly on anything but sockets and pipes */	1293	/* it usually doesn't work correctly on anything but sockets and pipes */
1258	flags &= ~EVBACKEND_KQUEUE;	1294	flags &= ~EVBACKEND_KQUEUE;
1259	#endif	1295	#endif
1260	#ifdef __APPLE__	1296	#ifdef __APPLE__
1261	// flags &= ~EVBACKEND_KQUEUE; for documentation	1297	/* only select works correctly on that "unix-certified" platform */
1262	flags &= ~EVBACKEND_POLL;	1298	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1299	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1263	#endif	1300	#endif
1264		1301
1265	return flags;	1302	return flags;
1266	}	1303	}
1267		1304
…		…
1304	static void noinline	1341	static void noinline
1305	loop_init (EV_P_ unsigned int flags)	1342	loop_init (EV_P_ unsigned int flags)
1306	{	1343	{
1307	if (!backend)	1344	if (!backend)
1308	{	1345	{
		1346	#if EV_USE_REALTIME
		1347	if (!have_realtime)
		1348	{
		1349	struct timespec ts;
		1350
		1351	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1352	have_realtime = 1;
		1353	}
		1354	#endif
		1355
1309	#if EV_USE_MONOTONIC	1356	#if EV_USE_MONOTONIC
		1357	if (!have_monotonic)
1310	{	1358	{
1311	struct timespec ts;	1359	struct timespec ts;
		1360
1312	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1313	have_monotonic = 1;	1362	have_monotonic = 1;
1314	}	1363	}
1315	#endif	1364	#endif
1316		1365
1317	ev_rt_now = ev_time ();	1366	ev_rt_now = ev_time ();
1318	mn_now = get_clock ();	1367	mn_now = get_clock ();
1319	now_floor = mn_now;	1368	now_floor = mn_now;
…		…
1418	}	1467	}
1419		1468
1420	ev_free (anfds); anfdmax = 0;	1469	ev_free (anfds); anfdmax = 0;
1421		1470
1422	/* have to use the microsoft-never-gets-it-right macro */	1471	/* have to use the microsoft-never-gets-it-right macro */
		1472	array_free (rfeed, EMPTY);
1423	array_free (fdchange, EMPTY);	1473	array_free (fdchange, EMPTY);
1424	array_free (timer, EMPTY);	1474	array_free (timer, EMPTY);
1425	#if EV_PERIODIC_ENABLE	1475	#if EV_PERIODIC_ENABLE
1426	array_free (periodic, EMPTY);	1476	array_free (periodic, EMPTY);
1427	#endif	1477	#endif
…		…
1436		1486
1437	backend = 0;	1487	backend = 0;
1438	}	1488	}
1439		1489
1440	#if EV_USE_INOTIFY	1490	#if EV_USE_INOTIFY
1441	void inline_size infy_fork (EV_P);	1491	inline_size void infy_fork (EV_P);
1442	#endif	1492	#endif
1443		1493
1444	void inline_size	1494	inline_size void
1445	loop_fork (EV_P)	1495	loop_fork (EV_P)
1446	{	1496	{
1447	#if EV_USE_PORT	1497	#if EV_USE_PORT
1448	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1498	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1449	#endif	1499	#endif
…		…
1520		1570
1521	#if EV_VERIFY	1571	#if EV_VERIFY
1522	static void noinline	1572	static void noinline
1523	verify_watcher (EV_P_ W w)	1573	verify_watcher (EV_P_ W w)
1524	{	1574	{
1525	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1575	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1526		1576
1527	if (w->pending)	1577	if (w->pending)
1528	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	1578	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1529	}	1579	}
1530		1580
1531	static void noinline	1581	static void noinline
1532	verify_heap (EV_P_ ANHE *heap, int N)	1582	verify_heap (EV_P_ ANHE *heap, int N)
1533	{	1583	{
1534	int i;	1584	int i;
1535		1585
1536	for (i = HEAP0; i < N + HEAP0; ++i)	1586	for (i = HEAP0; i < N + HEAP0; ++i)
1537	{	1587	{
1538	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));	1588	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1539	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));	1589	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1540	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));	1590	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1541		1591
1542	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1592	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1543	}	1593	}
1544	}	1594	}
1545		1595
1546	static void noinline	1596	static void noinline
1547	array_verify (EV_P_ W *ws, int cnt)	1597	array_verify (EV_P_ W *ws, int cnt)
1548	{	1598	{
1549	while (cnt--)	1599	while (cnt--)
1550	{	1600	{
1551	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1601	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1552	verify_watcher (EV_A_ ws [cnt]);	1602	verify_watcher (EV_A_ ws [cnt]);
1553	}	1603	}
1554	}	1604	}
1555	#endif	1605	#endif
1556		1606
…		…
1563		1613
1564	assert (activecnt >= -1);	1614	assert (activecnt >= -1);
1565		1615
1566	assert (fdchangemax >= fdchangecnt);	1616	assert (fdchangemax >= fdchangecnt);
1567	for (i = 0; i < fdchangecnt; ++i)	1617	for (i = 0; i < fdchangecnt; ++i)
1568	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1618	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1569		1619
1570	assert (anfdmax >= 0);	1620	assert (anfdmax >= 0);
1571	for (i = 0; i < anfdmax; ++i)	1621	for (i = 0; i < anfdmax; ++i)
1572	for (w = anfds [i].head; w; w = w->next)	1622	for (w = anfds [i].head; w; w = w->next)
1573	{	1623	{
1574	verify_watcher (EV_A_ (W)w);	1624	verify_watcher (EV_A_ (W)w);
1575	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1625	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1576	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	1626	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1577	}	1627	}
1578		1628
1579	assert (timermax >= timercnt);	1629	assert (timermax >= timercnt);
1580	verify_heap (EV_A_ timers, timercnt);	1630	verify_heap (EV_A_ timers, timercnt);
1581		1631
…		…
1658	{	1708	{
1659	#if EV_MULTIPLICITY	1709	#if EV_MULTIPLICITY
1660	struct ev_loop *loop = ev_default_loop_ptr;	1710	struct ev_loop *loop = ev_default_loop_ptr;
1661	#endif	1711	#endif
1662		1712
		1713	ev_default_loop_ptr = 0;
		1714
1663	#ifndef _WIN32	1715	#ifndef _WIN32
1664	ev_ref (EV_A); /* child watcher */	1716	ev_ref (EV_A); /* child watcher */
1665	ev_signal_stop (EV_A_ &childev);	1717	ev_signal_stop (EV_A_ &childev);
1666	#endif	1718	#endif
1667		1719
…		…
1673	{	1725	{
1674	#if EV_MULTIPLICITY	1726	#if EV_MULTIPLICITY
1675	struct ev_loop *loop = ev_default_loop_ptr;	1727	struct ev_loop *loop = ev_default_loop_ptr;
1676	#endif	1728	#endif
1677		1729
1678	if (backend)
1679	postfork = 1; /* must be in line with ev_loop_fork */	1730	postfork = 1; /* must be in line with ev_loop_fork */
1680	}	1731	}
1681		1732
1682	/*****************************************************************************/	1733	/*****************************************************************************/
1683		1734
1684	void	1735	void
1685	ev_invoke (EV_P_ void *w, int revents)	1736	ev_invoke (EV_P_ void *w, int revents)
1686	{	1737	{
1687	EV_CB_INVOKE ((W)w, revents);	1738	EV_CB_INVOKE ((W)w, revents);
1688	}	1739	}
1689		1740
1690	void inline_speed	1741	inline_speed void
1691	call_pending (EV_P)	1742	call_pending (EV_P)
1692	{	1743	{
1693	int pri;	1744	int pri;
1694		1745
1695	for (pri = NUMPRI; pri--; )	1746	for (pri = NUMPRI; pri--; )
…		…
1697	{	1748	{
1698	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1699		1750
1700	if (expect_true (p->w))	1751	if (expect_true (p->w))
1701	{	1752	{
1702	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1753	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1703		1754
1704	p->w->pending = 0;	1755	p->w->pending = 0;
1705	EV_CB_INVOKE (p->w, p->events);	1756	EV_CB_INVOKE (p->w, p->events);
1706	EV_FREQUENT_CHECK;	1757	EV_FREQUENT_CHECK;
1707	}	1758	}
1708	}	1759	}
1709	}	1760	}
1710		1761
1711	#if EV_IDLE_ENABLE	1762	#if EV_IDLE_ENABLE
1712	void inline_size	1763	inline_size void
1713	idle_reify (EV_P)	1764	idle_reify (EV_P)
1714	{	1765	{
1715	if (expect_false (idleall))	1766	if (expect_false (idleall))
1716	{	1767	{
1717	int pri;	1768	int pri;
…		…
1729	}	1780	}
1730	}	1781	}
1731	}	1782	}
1732	#endif	1783	#endif
1733		1784
1734	void inline_size	1785	inline_size void
1735	timers_reify (EV_P)	1786	timers_reify (EV_P)
1736	{	1787	{
1737	EV_FREQUENT_CHECK;	1788	EV_FREQUENT_CHECK;
1738		1789
1739	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1790	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1740	{	1791	{
1741	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1792	do
1742
1743	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1744
1745	/* first reschedule or stop timer */
1746	if (w->repeat)
1747	{	1793	{
		1794	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1795
		1796	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		1797
		1798	/* first reschedule or stop timer */
		1799	if (w->repeat)
		1800	{
1748	ev_at (w) += w->repeat;	1801	ev_at (w) += w->repeat;
1749	if (ev_at (w) < mn_now)	1802	if (ev_at (w) < mn_now)
1750	ev_at (w) = mn_now;	1803	ev_at (w) = mn_now;
1751		1804
1752	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1805	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1753		1806
1754	ANHE_at_cache (timers [HEAP0]);	1807	ANHE_at_cache (timers [HEAP0]);
1755	downheap (timers, timercnt, HEAP0);	1808	downheap (timers, timercnt, HEAP0);
		1809	}
		1810	else
		1811	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1812
		1813	EV_FREQUENT_CHECK;
		1814	feed_reverse (EV_A_ (W)w);
1756	}	1815	}
1757	else	1816	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1758	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1759		1817
1760	EV_FREQUENT_CHECK;
1761	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1818	feed_reverse_done (EV_A_ EV_TIMEOUT);
1762	}	1819	}
1763	}	1820	}
1764		1821
1765	#if EV_PERIODIC_ENABLE	1822	#if EV_PERIODIC_ENABLE
1766	void inline_size	1823	inline_size void
1767	periodics_reify (EV_P)	1824	periodics_reify (EV_P)
1768	{	1825	{
1769	EV_FREQUENT_CHECK;	1826	EV_FREQUENT_CHECK;
1770		1827
1771	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1828	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1772	{	1829	{
1773	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1830	int feed_count = 0;
1774		1831
1775	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1832	do
1776
1777	/* first reschedule or stop timer */
1778	if (w->reschedule_cb)
1779	{	1833	{
		1834	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1835
		1836	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		1837
		1838	/* first reschedule or stop timer */
		1839	if (w->reschedule_cb)
		1840	{
1780	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1841	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1781		1842
1782	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1843	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1783		1844
1784	ANHE_at_cache (periodics [HEAP0]);	1845	ANHE_at_cache (periodics [HEAP0]);
1785	downheap (periodics, periodiccnt, HEAP0);	1846	downheap (periodics, periodiccnt, HEAP0);
		1847	}
		1848	else if (w->interval)
		1849	{
		1850	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1851	/* if next trigger time is not sufficiently in the future, put it there */
		1852	/* this might happen because of floating point inexactness */
		1853	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1854	{
		1855	ev_at (w) += w->interval;
		1856
		1857	/* if interval is unreasonably low we might still have a time in the past */
		1858	/* so correct this. this will make the periodic very inexact, but the user */
		1859	/* has effectively asked to get triggered more often than possible */
		1860	if (ev_at (w) < ev_rt_now)
		1861	ev_at (w) = ev_rt_now;
		1862	}
		1863
		1864	ANHE_at_cache (periodics [HEAP0]);
		1865	downheap (periodics, periodiccnt, HEAP0);
		1866	}
		1867	else
		1868	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1869
		1870	EV_FREQUENT_CHECK;
		1871	feed_reverse (EV_A_ (W)w);
1786	}	1872	}
1787	else if (w->interval)	1873	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1788	{
1789	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1790	/* if next trigger time is not sufficiently in the future, put it there */
1791	/* this might happen because of floating point inexactness */
1792	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1793	{
1794	ev_at (w) += w->interval;
1795		1874
1796	/* if interval is unreasonably low we might still have a time in the past */
1797	/* so correct this. this will make the periodic very inexact, but the user */
1798	/* has effectively asked to get triggered more often than possible */
1799	if (ev_at (w) < ev_rt_now)
1800	ev_at (w) = ev_rt_now;
1801	}
1802
1803	ANHE_at_cache (periodics [HEAP0]);
1804	downheap (periodics, periodiccnt, HEAP0);
1805	}
1806	else
1807	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1808
1809	EV_FREQUENT_CHECK;
1810	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1875	feed_reverse_done (EV_A_ EV_PERIODIC);
1811	}	1876	}
1812	}	1877	}
1813		1878
1814	static void noinline	1879	static void noinline
1815	periodics_reschedule (EV_P)	1880	periodics_reschedule (EV_P)
…		…
1831		1896
1832	reheap (periodics, periodiccnt);	1897	reheap (periodics, periodiccnt);
1833	}	1898	}
1834	#endif	1899	#endif
1835		1900
1836	void inline_speed	1901	static void noinline
		1902	timers_reschedule (EV_P_ ev_tstamp adjust)
		1903	{
		1904	int i;
		1905
		1906	for (i = 0; i < timercnt; ++i)
		1907	{
		1908	ANHE *he = timers + i + HEAP0;
		1909	ANHE_w (*he)->at += adjust;
		1910	ANHE_at_cache (*he);
		1911	}
		1912	}
		1913
		1914	inline_speed void
1837	time_update (EV_P_ ev_tstamp max_block)	1915	time_update (EV_P_ ev_tstamp max_block)
1838	{	1916	{
1839	int i;	1917	int i;
1840		1918
1841	#if EV_USE_MONOTONIC	1919	#if EV_USE_MONOTONIC
…		…
1874	ev_rt_now = ev_time ();	1952	ev_rt_now = ev_time ();
1875	mn_now = get_clock ();	1953	mn_now = get_clock ();
1876	now_floor = mn_now;	1954	now_floor = mn_now;
1877	}	1955	}
1878		1956
		1957	/* no timer adjustment, as the monotonic clock doesn't jump */
		1958	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1879	# if EV_PERIODIC_ENABLE	1959	# if EV_PERIODIC_ENABLE
1880	periodics_reschedule (EV_A);	1960	periodics_reschedule (EV_A);
1881	# endif	1961	# endif
1882	/* no timer adjustment, as the monotonic clock doesn't jump */
1883	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1884	}	1962	}
1885	else	1963	else
1886	#endif	1964	#endif
1887	{	1965	{
1888	ev_rt_now = ev_time ();	1966	ev_rt_now = ev_time ();
1889		1967
1890	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	1968	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1891	{	1969	{
		1970	/* adjust timers. this is easy, as the offset is the same for all of them */
		1971	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1892	#if EV_PERIODIC_ENABLE	1972	#if EV_PERIODIC_ENABLE
1893	periodics_reschedule (EV_A);	1973	periodics_reschedule (EV_A);
1894	#endif	1974	#endif
1895	/* adjust timers. this is easy, as the offset is the same for all of them */
1896	for (i = 0; i < timercnt; ++i)
1897	{
1898	ANHE *he = timers + i + HEAP0;
1899	ANHE_w (*he)->at += ev_rt_now - mn_now;
1900	ANHE_at_cache (*he);
1901	}
1902	}	1975	}
1903		1976
1904	mn_now = ev_rt_now;	1977	mn_now = ev_rt_now;
1905	}	1978	}
1906	}
1907
1908	void
1909	ev_ref (EV_P)
1910	{
1911	++activecnt;
1912	}
1913
1914	void
1915	ev_unref (EV_P)
1916	{
1917	--activecnt;
1918	}
1919
1920	void
1921	ev_now_update (EV_P)
1922	{
1923	time_update (EV_A_ 1e100);
1924	}	1979	}
1925		1980
1926	static int loop_done;	1981	static int loop_done;
1927		1982
1928	void	1983	void
…		…
1962	{	2017	{
1963	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2018	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1964	call_pending (EV_A);	2019	call_pending (EV_A);
1965	}	2020	}
1966		2021
1967	if (expect_false (!activecnt))
1968	break;
1969
1970	/* we might have forked, so reify kernel state if necessary */	2022	/* we might have forked, so reify kernel state if necessary */
1971	if (expect_false (postfork))	2023	if (expect_false (postfork))
1972	loop_fork (EV_A);	2024	loop_fork (EV_A);
1973		2025
1974	/* update fd-related kernel structures */	2026	/* update fd-related kernel structures */
…		…
1981		2033
1982	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2034	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1983	{	2035	{
1984	/* update time to cancel out callback processing overhead */	2036	/* update time to cancel out callback processing overhead */
1985	time_update (EV_A_ 1e100);	2037	time_update (EV_A_ 1e100);
1986
1987	waittime = MAX_BLOCKTIME;
1988		2038
1989	if (timercnt)	2039	if (timercnt)
1990	{	2040	{
1991	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2041	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1992	if (waittime > to) waittime = to;	2042	if (waittime > to) waittime = to;
…		…
2053	ev_unloop (EV_P_ int how)	2103	ev_unloop (EV_P_ int how)
2054	{	2104	{
2055	loop_done = how;	2105	loop_done = how;
2056	}	2106	}
2057		2107
		2108	void
		2109	ev_ref (EV_P)
		2110	{
		2111	++activecnt;
		2112	}
		2113
		2114	void
		2115	ev_unref (EV_P)
		2116	{
		2117	--activecnt;
		2118	}
		2119
		2120	void
		2121	ev_now_update (EV_P)
		2122	{
		2123	time_update (EV_A_ 1e100);
		2124	}
		2125
		2126	void
		2127	ev_suspend (EV_P)
		2128	{
		2129	ev_now_update (EV_A);
		2130	}
		2131
		2132	void
		2133	ev_resume (EV_P)
		2134	{
		2135	ev_tstamp mn_prev = mn_now;
		2136
		2137	ev_now_update (EV_A);
		2138	printf ("update %f\n", mn_now - mn_prev);//D
		2139	timers_reschedule (EV_A_ mn_now - mn_prev);
		2140	periodics_reschedule (EV_A);
		2141	}
		2142
2058	/*****************************************************************************/	2143	/*****************************************************************************/
2059		2144
2060	void inline_size	2145	inline_size void
2061	wlist_add (WL *head, WL elem)	2146	wlist_add (WL *head, WL elem)
2062	{	2147	{
2063	elem->next = *head;	2148	elem->next = *head;
2064	*head = elem;	2149	*head = elem;
2065	}	2150	}
2066		2151
2067	void inline_size	2152	inline_size void
2068	wlist_del (WL *head, WL elem)	2153	wlist_del (WL *head, WL elem)
2069	{	2154	{
2070	while (*head)	2155	while (*head)
2071	{	2156	{
2072	if (*head == elem)	2157	if (*head == elem)
…		…
2077		2162
2078	head = &(*head)->next;	2163	head = &(*head)->next;
2079	}	2164	}
2080	}	2165	}
2081		2166
2082	void inline_speed	2167	inline_speed void
2083	clear_pending (EV_P_ W w)	2168	clear_pending (EV_P_ W w)
2084	{	2169	{
2085	if (w->pending)	2170	if (w->pending)
2086	{	2171	{
2087	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2172	pendings [ABSPRI (w)][w->pending - 1].w = 0;
…		…
2104	}	2189	}
2105	else	2190	else
2106	return 0;	2191	return 0;
2107	}	2192	}
2108		2193
2109	void inline_size	2194	inline_size void
2110	pri_adjust (EV_P_ W w)	2195	pri_adjust (EV_P_ W w)
2111	{	2196	{
2112	int pri = w->priority;	2197	int pri = w->priority;
2113	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2198	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2114	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2199	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2115	w->priority = pri;	2200	w->priority = pri;
2116	}	2201	}
2117		2202
2118	void inline_speed	2203	inline_speed void
2119	ev_start (EV_P_ W w, int active)	2204	ev_start (EV_P_ W w, int active)
2120	{	2205	{
2121	pri_adjust (EV_A_ w);	2206	pri_adjust (EV_A_ w);
2122	w->active = active;	2207	w->active = active;
2123	ev_ref (EV_A);	2208	ev_ref (EV_A);
2124	}	2209	}
2125		2210
2126	void inline_size	2211	inline_size void
2127	ev_stop (EV_P_ W w)	2212	ev_stop (EV_P_ W w)
2128	{	2213	{
2129	ev_unref (EV_A);	2214	ev_unref (EV_A);
2130	w->active = 0;	2215	w->active = 0;
2131	}	2216	}
…		…
2138	int fd = w->fd;	2223	int fd = w->fd;
2139		2224
2140	if (expect_false (ev_is_active (w)))	2225	if (expect_false (ev_is_active (w)))
2141	return;	2226	return;
2142		2227
2143	assert (("ev_io_start called with negative fd", fd >= 0));	2228	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2229	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2144		2230
2145	EV_FREQUENT_CHECK;	2231	EV_FREQUENT_CHECK;
2146		2232
2147	ev_start (EV_A_ (W)w, 1);	2233	ev_start (EV_A_ (W)w, 1);
2148	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2234	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2149	wlist_add (&anfds[fd].head, (WL)w);	2235	wlist_add (&anfds[fd].head, (WL)w);
2150		2236
2151	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2237	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2152	w->events &= ~EV_IOFDSET;	2238	w->events &= ~EV__IOFDSET;
2153		2239
2154	EV_FREQUENT_CHECK;	2240	EV_FREQUENT_CHECK;
2155	}	2241	}
2156		2242
2157	void noinline	2243	void noinline
…		…
2159	{	2245	{
2160	clear_pending (EV_A_ (W)w);	2246	clear_pending (EV_A_ (W)w);
2161	if (expect_false (!ev_is_active (w)))	2247	if (expect_false (!ev_is_active (w)))
2162	return;	2248	return;
2163		2249
2164	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2250	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2165		2251
2166	EV_FREQUENT_CHECK;	2252	EV_FREQUENT_CHECK;
2167		2253
2168	wlist_del (&anfds[w->fd].head, (WL)w);	2254	wlist_del (&anfds[w->fd].head, (WL)w);
2169	ev_stop (EV_A_ (W)w);	2255	ev_stop (EV_A_ (W)w);
…		…
2179	if (expect_false (ev_is_active (w)))	2265	if (expect_false (ev_is_active (w)))
2180	return;	2266	return;
2181		2267
2182	ev_at (w) += mn_now;	2268	ev_at (w) += mn_now;
2183		2269
2184	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2270	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2185		2271
2186	EV_FREQUENT_CHECK;	2272	EV_FREQUENT_CHECK;
2187		2273
2188	++timercnt;	2274	++timercnt;
2189	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2275	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2192	ANHE_at_cache (timers [ev_active (w)]);	2278	ANHE_at_cache (timers [ev_active (w)]);
2193	upheap (timers, ev_active (w));	2279	upheap (timers, ev_active (w));
2194		2280
2195	EV_FREQUENT_CHECK;	2281	EV_FREQUENT_CHECK;
2196		2282
2197	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2283	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2198	}	2284	}
2199		2285
2200	void noinline	2286	void noinline
2201	ev_timer_stop (EV_P_ ev_timer *w)	2287	ev_timer_stop (EV_P_ ev_timer *w)
2202	{	2288	{
…		…
2207	EV_FREQUENT_CHECK;	2293	EV_FREQUENT_CHECK;
2208		2294
2209	{	2295	{
2210	int active = ev_active (w);	2296	int active = ev_active (w);
2211		2297
2212	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2298	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2213		2299
2214	--timercnt;	2300	--timercnt;
2215		2301
2216	if (expect_true (active < timercnt + HEAP0))	2302	if (expect_true (active < timercnt + HEAP0))
2217	{	2303	{
…		…
2261		2347
2262	if (w->reschedule_cb)	2348	if (w->reschedule_cb)
2263	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2349	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2264	else if (w->interval)	2350	else if (w->interval)
2265	{	2351	{
2266	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2352	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2267	/* this formula differs from the one in periodic_reify because we do not always round up */	2353	/* this formula differs from the one in periodic_reify because we do not always round up */
2268	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2354	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2269	}	2355	}
2270	else	2356	else
2271	ev_at (w) = w->offset;	2357	ev_at (w) = w->offset;
…		…
2279	ANHE_at_cache (periodics [ev_active (w)]);	2365	ANHE_at_cache (periodics [ev_active (w)]);
2280	upheap (periodics, ev_active (w));	2366	upheap (periodics, ev_active (w));
2281		2367
2282	EV_FREQUENT_CHECK;	2368	EV_FREQUENT_CHECK;
2283		2369
2284	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2370	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2285	}	2371	}
2286		2372
2287	void noinline	2373	void noinline
2288	ev_periodic_stop (EV_P_ ev_periodic *w)	2374	ev_periodic_stop (EV_P_ ev_periodic *w)
2289	{	2375	{
…		…
2294	EV_FREQUENT_CHECK;	2380	EV_FREQUENT_CHECK;
2295		2381
2296	{	2382	{
2297	int active = ev_active (w);	2383	int active = ev_active (w);
2298		2384
2299	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2385	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2300		2386
2301	--periodiccnt;	2387	--periodiccnt;
2302		2388
2303	if (expect_true (active < periodiccnt + HEAP0))	2389	if (expect_true (active < periodiccnt + HEAP0))
2304	{	2390	{
…		…
2327		2413
2328	void noinline	2414	void noinline
2329	ev_signal_start (EV_P_ ev_signal *w)	2415	ev_signal_start (EV_P_ ev_signal *w)
2330	{	2416	{
2331	#if EV_MULTIPLICITY	2417	#if EV_MULTIPLICITY
2332	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2418	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2333	#endif	2419	#endif
2334	if (expect_false (ev_is_active (w)))	2420	if (expect_false (ev_is_active (w)))
2335	return;	2421	return;
2336		2422
2337	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2423	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2338		2424
2339	evpipe_init (EV_A);	2425	evpipe_init (EV_A);
2340		2426
2341	EV_FREQUENT_CHECK;	2427	EV_FREQUENT_CHECK;
2342		2428
…		…
2345	sigset_t full, prev;	2431	sigset_t full, prev;
2346	sigfillset (&full);	2432	sigfillset (&full);
2347	sigprocmask (SIG_SETMASK, &full, &prev);	2433	sigprocmask (SIG_SETMASK, &full, &prev);
2348	#endif	2434	#endif
2349		2435
2350	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2436	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2351		2437
2352	#ifndef _WIN32	2438	#ifndef _WIN32
2353	sigprocmask (SIG_SETMASK, &prev, 0);	2439	sigprocmask (SIG_SETMASK, &prev, 0);
2354	#endif	2440	#endif
2355	}	2441	}
…		…
2393		2479
2394	void	2480	void
2395	ev_child_start (EV_P_ ev_child *w)	2481	ev_child_start (EV_P_ ev_child *w)
2396	{	2482	{
2397	#if EV_MULTIPLICITY	2483	#if EV_MULTIPLICITY
2398	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2484	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2399	#endif	2485	#endif
2400	if (expect_false (ev_is_active (w)))	2486	if (expect_false (ev_is_active (w)))
2401	return;	2487	return;
2402		2488
2403	EV_FREQUENT_CHECK;	2489	EV_FREQUENT_CHECK;
…		…
2428	# ifdef _WIN32	2514	# ifdef _WIN32
2429	# undef lstat	2515	# undef lstat
2430	# define lstat(a,b) _stati64 (a,b)	2516	# define lstat(a,b) _stati64 (a,b)
2431	# endif	2517	# endif
2432		2518
2433	#define DEF_STAT_INTERVAL 5.0074891	2519	#define DEF_STAT_INTERVAL 5.0074891
		2520	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2434	#define MIN_STAT_INTERVAL 0.1074891	2521	#define MIN_STAT_INTERVAL 0.1074891
2435		2522
2436	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2523	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2437		2524
2438	#if EV_USE_INOTIFY	2525	#if EV_USE_INOTIFY
2439	# define EV_INOTIFY_BUFSIZE 8192	2526	# define EV_INOTIFY_BUFSIZE 8192
…		…
2443	{	2530	{
2444	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	2531	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2445		2532
2446	if (w->wd < 0)	2533	if (w->wd < 0)
2447	{	2534	{
		2535	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2448	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2536	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2449		2537
2450	/* monitor some parent directory for speedup hints */	2538	/* monitor some parent directory for speedup hints */
2451	/* note that exceeding the hardcoded limit is not a correctness issue, */	2539	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2452	/* but an efficiency issue only */	2540	/* but an efficiency issue only */
2453	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2541	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2454	{	2542	{
2455	char path [4096];	2543	char path [4096];
2456	strcpy (path, w->path);	2544	strcpy (path, w->path);
…		…
2460	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2548	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2461	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2549	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2462		2550
2463	char *pend = strrchr (path, '/');	2551	char *pend = strrchr (path, '/');
2464		2552
2465	if (!pend)	2553	if (!pend || pend == path)
2466	break; /* whoops, no '/', complain to your admin */	2554	break;
2467		2555
2468	*pend = 0;	2556	*pend = 0;
2469	w->wd = inotify_add_watch (fs_fd, path, mask);	2557	w->wd = inotify_add_watch (fs_fd, path, mask);
2470	}	2558	}
2471	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2559	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2472	}	2560	}
2473	}	2561	}
2474	else
2475	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2476		2562
2477	if (w->wd >= 0)	2563	if (w->wd >= 0)
		2564	{
2478	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2565	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2566
		2567	/* now local changes will be tracked by inotify, but remote changes won't */
		2568	/* unless the filesystem it known to be local, we therefore still poll */
		2569	/* also do poll on <2.6.25, but with normal frequency */
		2570	struct statfs sfs;
		2571
		2572	if (fs_2625 && !statfs (w->path, &sfs))
		2573	if (sfs.f_type == 0x1373 /* devfs */
		2574	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2575	|| sfs.f_type == 0x3153464a /* jfs */
		2576	|| sfs.f_type == 0x52654973 /* reiser3 */
		2577	|| sfs.f_type == 0x01021994 /* tempfs */
		2578	|| sfs.f_type == 0x58465342 /* xfs */)
		2579	return;
		2580
		2581	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2582	ev_timer_again (EV_A_ &w->timer);
		2583	}
2479	}	2584	}
2480		2585
2481	static void noinline	2586	static void noinline
2482	infy_del (EV_P_ ev_stat *w)	2587	infy_del (EV_P_ ev_stat *w)
2483	{	2588	{
…		…
2513		2618
2514	if (w->wd == wd || wd == -1)	2619	if (w->wd == wd || wd == -1)
2515	{	2620	{
2516	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2621	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2517	{	2622	{
		2623	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2518	w->wd = -1;	2624	w->wd = -1;
2519	infy_add (EV_A_ w); /* re-add, no matter what */	2625	infy_add (EV_A_ w); /* re-add, no matter what */
2520	}	2626	}
2521		2627
2522	stat_timer_cb (EV_A_ &w->timer, 0);	2628	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2535		2641
2536	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2642	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2537	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2643	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2538	}	2644	}
2539		2645
2540	void inline_size	2646	inline_size void
2541	infy_init (EV_P)	2647	check_2625 (EV_P)
2542	{	2648	{
2543	if (fs_fd != -2)
2544	return;
2545
2546	/* kernels < 2.6.25 are borked	2649	/* kernels < 2.6.25 are borked
2547	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	2650	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2548	*/	2651	*/
2549	{
2550	struct utsname buf;	2652	struct utsname buf;
2551	int major, minor, micro;	2653	int major, minor, micro;
2552		2654
2553	fs_fd = -1;
2554
2555	if (uname (&buf))	2655	if (uname (&buf))
2556	return;	2656	return;
2557		2657
2558	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)	2658	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2559	return;	2659	return;
2560		2660
2561	if (major < 2	2661	if (major < 2
2562	|| (major == 2 && minor < 6)	2662	|| (major == 2 && minor < 6)
2563	|| (major == 2 && minor == 6 && micro < 25))	2663	|| (major == 2 && minor == 6 && micro < 25))
2564	return;	2664	return;
2565	}	2665
		2666	fs_2625 = 1;
		2667	}
		2668
		2669	inline_size void
		2670	infy_init (EV_P)
		2671	{
		2672	if (fs_fd != -2)
		2673	return;
		2674
		2675	fs_fd = -1;
		2676
		2677	check_2625 (EV_A);
2566		2678
2567	fs_fd = inotify_init ();	2679	fs_fd = inotify_init ();
2568		2680
2569	if (fs_fd >= 0)	2681	if (fs_fd >= 0)
2570	{	2682	{
…		…
2572	ev_set_priority (&fs_w, EV_MAXPRI);	2684	ev_set_priority (&fs_w, EV_MAXPRI);
2573	ev_io_start (EV_A_ &fs_w);	2685	ev_io_start (EV_A_ &fs_w);
2574	}	2686	}
2575	}	2687	}
2576		2688
2577	void inline_size	2689	inline_size void
2578	infy_fork (EV_P)	2690	infy_fork (EV_P)
2579	{	2691	{
2580	int slot;	2692	int slot;
2581		2693
2582	if (fs_fd < 0)	2694	if (fs_fd < 0)
…		…
2598	w->wd = -1;	2710	w->wd = -1;
2599		2711
2600	if (fs_fd >= 0)	2712	if (fs_fd >= 0)
2601	infy_add (EV_A_ w); /* re-add, no matter what */	2713	infy_add (EV_A_ w); /* re-add, no matter what */
2602	else	2714	else
2603	ev_timer_start (EV_A_ &w->timer);	2715	ev_timer_again (EV_A_ &w->timer);
2604	}	2716	}
2605	}	2717	}
2606	}	2718	}
2607		2719
2608	#endif	2720	#endif
…		…
2663	ev_stat_start (EV_P_ ev_stat *w)	2775	ev_stat_start (EV_P_ ev_stat *w)
2664	{	2776	{
2665	if (expect_false (ev_is_active (w)))	2777	if (expect_false (ev_is_active (w)))
2666	return;	2778	return;
2667		2779
2668	/* since we use memcmp, we need to clear any padding data etc. */
2669	memset (&w->prev, 0, sizeof (ev_statdata));
2670	memset (&w->attr, 0, sizeof (ev_statdata));
2671
2672	ev_stat_stat (EV_A_ w);	2780	ev_stat_stat (EV_A_ w);
2673		2781
		2782	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2674	if (w->interval < MIN_STAT_INTERVAL)	2783	w->interval = MIN_STAT_INTERVAL;
2675	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2676		2784
2677	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2785	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2678	ev_set_priority (&w->timer, ev_priority (w));	2786	ev_set_priority (&w->timer, ev_priority (w));
2679		2787
2680	#if EV_USE_INOTIFY	2788	#if EV_USE_INOTIFY
2681	infy_init (EV_A);	2789	infy_init (EV_A);
2682		2790
2683	if (fs_fd >= 0)	2791	if (fs_fd >= 0)
2684	infy_add (EV_A_ w);	2792	infy_add (EV_A_ w);
2685	else	2793	else
2686	#endif	2794	#endif
2687	ev_timer_start (EV_A_ &w->timer);	2795	ev_timer_again (EV_A_ &w->timer);
2688		2796
2689	ev_start (EV_A_ (W)w, 1);	2797	ev_start (EV_A_ (W)w, 1);
2690		2798
2691	EV_FREQUENT_CHECK;	2799	EV_FREQUENT_CHECK;
2692	}	2800	}
…		…
2867	static void	2975	static void
2868	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)	2976	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2869	{	2977	{
2870	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	2978	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2871		2979
		2980	ev_embed_stop (EV_A_ w);
		2981
2872	{	2982	{
2873	struct ev_loop *loop = w->other;	2983	struct ev_loop *loop = w->other;
2874		2984
2875	ev_loop_fork (EV_A);	2985	ev_loop_fork (EV_A);
		2986	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2876	}	2987	}
		2988
		2989	ev_embed_start (EV_A_ w);
2877	}	2990	}
2878		2991
2879	#if 0	2992	#if 0
2880	static void	2993	static void
2881	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2994	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
…		…
2890	if (expect_false (ev_is_active (w)))	3003	if (expect_false (ev_is_active (w)))
2891	return;	3004	return;
2892		3005
2893	{	3006	{
2894	struct ev_loop *loop = w->other;	3007	struct ev_loop *loop = w->other;
2895	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3008	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2896	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3009	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2897	}	3010	}
2898		3011
2899	EV_FREQUENT_CHECK;	3012	EV_FREQUENT_CHECK;
2900		3013
…		…
3083	ev_timer_set (&once->to, timeout, 0.);	3196	ev_timer_set (&once->to, timeout, 0.);
3084	ev_timer_start (EV_A_ &once->to);	3197	ev_timer_start (EV_A_ &once->to);
3085	}	3198	}
3086	}	3199	}
3087		3200
		3201	/*****************************************************************************/
		3202
		3203	#if 0
		3204	void
		3205	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3206	{
		3207	int i, j;
		3208	ev_watcher_list *wl, *wn;
		3209
		3210	if (types & (EV_IO | EV_EMBED))
		3211	for (i = 0; i < anfdmax; ++i)
		3212	for (wl = anfds [i].head; wl; )
		3213	{
		3214	wn = wl->next;
		3215
		3216	#if EV_EMBED_ENABLE
		3217	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3218	{
		3219	if (types & EV_EMBED)
		3220	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3221	}
		3222	else
		3223	#endif
		3224	#if EV_USE_INOTIFY
		3225	if (ev_cb ((ev_io *)wl) == infy_cb)
		3226	;
		3227	else
		3228	#endif
		3229	if ((ev_io *)wl != &pipeev)
		3230	if (types & EV_IO)
		3231	cb (EV_A_ EV_IO, wl);
		3232
		3233	wl = wn;
		3234	}
		3235
		3236	if (types & (EV_TIMER | EV_STAT))
		3237	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3238	#if EV_STAT_ENABLE
		3239	/*TODO: timer is not always active*/
		3240	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3241	{
		3242	if (types & EV_STAT)
		3243	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3244	}
		3245	else
		3246	#endif
		3247	if (types & EV_TIMER)
		3248	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3249
		3250	#if EV_PERIODIC_ENABLE
		3251	if (types & EV_PERIODIC)
		3252	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3253	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3254	#endif
		3255
		3256	#if EV_IDLE_ENABLE
		3257	if (types & EV_IDLE)
		3258	for (j = NUMPRI; i--; )
		3259	for (i = idlecnt [j]; i--; )
		3260	cb (EV_A_ EV_IDLE, idles [j][i]);
		3261	#endif
		3262
		3263	#if EV_FORK_ENABLE
		3264	if (types & EV_FORK)
		3265	for (i = forkcnt; i--; )
		3266	if (ev_cb (forks [i]) != embed_fork_cb)
		3267	cb (EV_A_ EV_FORK, forks [i]);
		3268	#endif
		3269
		3270	#if EV_ASYNC_ENABLE
		3271	if (types & EV_ASYNC)
		3272	for (i = asynccnt; i--; )
		3273	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3274	#endif
		3275
		3276	if (types & EV_PREPARE)
		3277	for (i = preparecnt; i--; )
		3278	#if EV_EMBED_ENABLE
		3279	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3280	#endif
		3281	cb (EV_A_ EV_PREPARE, prepares [i]);
		3282
		3283	if (types & EV_CHECK)
		3284	for (i = checkcnt; i--; )
		3285	cb (EV_A_ EV_CHECK, checks [i]);
		3286
		3287	if (types & EV_SIGNAL)
		3288	for (i = 0; i < signalmax; ++i)
		3289	for (wl = signals [i].head; wl; )
		3290	{
		3291	wn = wl->next;
		3292	cb (EV_A_ EV_SIGNAL, wl);
		3293	wl = wn;
		3294	}
		3295
		3296	if (types & EV_CHILD)
		3297	for (i = EV_PID_HASHSIZE; i--; )
		3298	for (wl = childs [i]; wl; )
		3299	{
		3300	wn = wl->next;
		3301	cb (EV_A_ EV_CHILD, wl);
		3302	wl = wn;
		3303	}
		3304	/* EV_STAT 0x00001000 /* stat data changed */
		3305	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3306	}
		3307	#endif
		3308
3088	#if EV_MULTIPLICITY	3309	#if EV_MULTIPLICITY
3089	#include "ev_wrap.h"	3310	#include "ev_wrap.h"
3090	#endif	3311	#endif
3091		3312
3092	#ifdef __cplusplus	3313	#ifdef __cplusplus

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