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Comparing libev/ev.c (file contents):
Revision 1.260 by root, Mon Sep 8 17:24:39 2008 UTC vs.
Revision 1.286 by root, Wed Apr 15 19:37:15 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
…		…
286	# include <sys/select.h>	306	# include <sys/select.h>
287	# endif	307	# endif
288	#endif	308	#endif
289		309
290	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
291	# include <sys/inotify.h>	313	# include <sys/inotify.h>
		314	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		315	# ifndef IN_DONT_FOLLOW
		316	# undef EV_USE_INOTIFY
		317	# define EV_USE_INOTIFY 0
		318	# endif
292	#endif	319	#endif
293		320
294	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
295	# 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
296	#endif	332	#endif
297		333
298	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
299	/* 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 */
300	# include <stdint.h>	336	# include <stdint.h>
…		…
361	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
362		398
363	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
364	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
365		401
366	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
367	/* 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 */
368	/* 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
369	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? */
370	#endif	410	#endif
371		411
372	#ifdef _WIN32	412	#ifdef _WIN32
373	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
382	{	422	{
383	syserr_cb = cb;	423	syserr_cb = cb;
384	}	424	}
385		425
386	static void noinline	426	static void noinline
387	syserr (const char *msg)	427	ev_syserr (const char *msg)
388	{	428	{
389	if (!msg)	429	if (!msg)
390	msg = "(libev) system error";	430	msg = "(libev) system error";
391		431
392	if (syserr_cb)	432	if (syserr_cb)
…		…
443	typedef struct	483	typedef struct
444	{	484	{
445	WL head;	485	WL head;
446	unsigned char events;	486	unsigned char events;
447	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
448	#if EV_SELECT_IS_WINSOCKET	493	#if EV_SELECT_IS_WINSOCKET
449	SOCKET handle;	494	SOCKET handle;
450	#endif	495	#endif
451	} ANFD;	496	} ANFD;
452		497
…		…
512		557
513	ev_tstamp	558	ev_tstamp
514	ev_time (void)	559	ev_time (void)
515	{	560	{
516	#if EV_USE_REALTIME	561	#if EV_USE_REALTIME
		562	if (expect_true (have_realtime))
		563	{
517	struct timespec ts;	564	struct timespec ts;
518	clock_gettime (CLOCK_REALTIME, &ts);	565	clock_gettime (CLOCK_REALTIME, &ts);
519	return ts.tv_sec + ts.tv_nsec * 1e-9;	566	return ts.tv_sec + ts.tv_nsec * 1e-9;
520	#else	567	}
		568	#endif
		569
521	struct timeval tv;	570	struct timeval tv;
522	gettimeofday (&tv, 0);	571	gettimeofday (&tv, 0);
523	return tv.tv_sec + tv.tv_usec * 1e-6;	572	return tv.tv_sec + tv.tv_usec * 1e-6;
524	#endif
525	}	573	}
526		574
527	ev_tstamp inline_size	575	inline_size ev_tstamp
528	get_clock (void)	576	get_clock (void)
529	{	577	{
530	#if EV_USE_MONOTONIC	578	#if EV_USE_MONOTONIC
531	if (expect_true (have_monotonic))	579	if (expect_true (have_monotonic))
532	{	580	{
…		…
577		625
578	/*****************************************************************************/	626	/*****************************************************************************/
579		627
580	#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 */
581		629
582	int inline_size	630	inline_size int
583	array_nextsize (int elem, int cur, int cnt)	631	array_nextsize (int elem, int cur, int cnt)
584	{	632	{
585	int ncur = cur + 1;	633	int ncur = cur + 1;
586		634
587	do	635	do
…		…
604	array_realloc (int elem, void *base, int *cur, int cnt)	652	array_realloc (int elem, void *base, int *cur, int cnt)
605	{	653	{
606	*cur = array_nextsize (elem, *cur, cnt);	654	*cur = array_nextsize (elem, *cur, cnt);
607	return ev_realloc (base, elem * *cur);	655	return ev_realloc (base, elem * *cur);
608	}	656	}
		657
		658	#define array_init_zero(base,count) \
		659	memset ((void *)(base), 0, sizeof (*(base)) * (count))
609		660
610	#define array_needsize(type,base,cur,cnt,init) \	661	#define array_needsize(type,base,cur,cnt,init) \
611	if (expect_false ((cnt) > (cur))) \	662	if (expect_false ((cnt) > (cur))) \
612	{ \	663	{ \
613	int ocur_ = (cur); \	664	int ocur_ = (cur); \
…		…
625	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	676	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
626	}	677	}
627	#endif	678	#endif
628		679
629	#define array_free(stem, idx) \	680	#define array_free(stem, idx) \
630	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
631		682
632	/*****************************************************************************/	683	/*****************************************************************************/
633		684
634	void noinline	685	void noinline
635	ev_feed_event (EV_P_ void *w, int revents)	686	ev_feed_event (EV_P_ void *w, int revents)
…		…
646	pendings [pri][w_->pending - 1].w = w_;	697	pendings [pri][w_->pending - 1].w = w_;
647	pendings [pri][w_->pending - 1].events = revents;	698	pendings [pri][w_->pending - 1].events = revents;
648	}	699	}
649	}	700	}
650		701
651	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
652	queue_events (EV_P_ W *events, int eventcnt, int type)	718	queue_events (EV_P_ W *events, int eventcnt, int type)
653	{	719	{
654	int i;	720	int i;
655		721
656	for (i = 0; i < eventcnt; ++i)	722	for (i = 0; i < eventcnt; ++i)
657	ev_feed_event (EV_A_ events [i], type);	723	ev_feed_event (EV_A_ events [i], type);
658	}	724	}
659		725
660	/*****************************************************************************/	726	/*****************************************************************************/
661		727
662	void inline_size	728	inline_speed void
663	anfds_init (ANFD *base, int count)
664	{
665	while (count--)
666	{
667	base->head = 0;
668	base->events = EV_NONE;
669	base->reify = 0;
670
671	++base;
672	}
673	}
674
675	void inline_speed
676	fd_event (EV_P_ int fd, int revents)	729	fd_event (EV_P_ int fd, int revents)
677	{	730	{
678	ANFD *anfd = anfds + fd;	731	ANFD *anfd = anfds + fd;
679	ev_io *w;	732	ev_io *w;
680		733
…		…
692	{	745	{
693	if (fd >= 0 && fd < anfdmax)	746	if (fd >= 0 && fd < anfdmax)
694	fd_event (EV_A_ fd, revents);	747	fd_event (EV_A_ fd, revents);
695	}	748	}
696		749
697	void inline_size	750	inline_size void
698	fd_reify (EV_P)	751	fd_reify (EV_P)
699	{	752	{
700	int i;	753	int i;
701		754
702	for (i = 0; i < fdchangecnt; ++i)	755	for (i = 0; i < fdchangecnt; ++i)
…		…
717	#ifdef EV_FD_TO_WIN32_HANDLE	770	#ifdef EV_FD_TO_WIN32_HANDLE
718	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
719	#else	772	#else
720	anfd->handle = _get_osfhandle (fd);	773	anfd->handle = _get_osfhandle (fd);
721	#endif	774	#endif
722	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));
723	}	776	}
724	#endif	777	#endif
725		778
726	{	779	{
727	unsigned char o_events = anfd->events;	780	unsigned char o_events = anfd->events;
728	unsigned char o_reify = anfd->reify;	781	unsigned char o_reify = anfd->reify;
729		782
730	anfd->reify = 0;	783	anfd->reify = 0;
731	anfd->events = events;	784	anfd->events = events;
732		785
733	if (o_events != events || o_reify & EV_IOFDSET)	786	if (o_events != events || o_reify & EV__IOFDSET)
734	backend_modify (EV_A_ fd, o_events, events);	787	backend_modify (EV_A_ fd, o_events, events);
735	}	788	}
736	}	789	}
737		790
738	fdchangecnt = 0;	791	fdchangecnt = 0;
739	}	792	}
740		793
741	void inline_size	794	inline_size void
742	fd_change (EV_P_ int fd, int flags)	795	fd_change (EV_P_ int fd, int flags)
743	{	796	{
744	unsigned char reify = anfds [fd].reify;	797	unsigned char reify = anfds [fd].reify;
745	anfds [fd].reify |= flags;	798	anfds [fd].reify |= flags;
746		799
…		…
750	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
751	fdchanges [fdchangecnt - 1] = fd;	804	fdchanges [fdchangecnt - 1] = fd;
752	}	805	}
753	}	806	}
754		807
755	void inline_speed	808	inline_speed void
756	fd_kill (EV_P_ int fd)	809	fd_kill (EV_P_ int fd)
757	{	810	{
758	ev_io *w;	811	ev_io *w;
759		812
760	while ((w = (ev_io *)anfds [fd].head))	813	while ((w = (ev_io *)anfds [fd].head))
…		…
762	ev_io_stop (EV_A_ w);	815	ev_io_stop (EV_A_ w);
763	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);
764	}	817	}
765	}	818	}
766		819
767	int inline_size	820	inline_size int
768	fd_valid (int fd)	821	fd_valid (int fd)
769	{	822	{
770	#ifdef _WIN32	823	#ifdef _WIN32
771	return _get_osfhandle (fd) != -1;	824	return _get_osfhandle (fd) != -1;
772	#else	825	#else
…		…
808		861
809	for (fd = 0; fd < anfdmax; ++fd)	862	for (fd = 0; fd < anfdmax; ++fd)
810	if (anfds [fd].events)	863	if (anfds [fd].events)
811	{	864	{
812	anfds [fd].events = 0;	865	anfds [fd].events = 0;
		866	anfds [fd].emask = 0;
813	fd_change (EV_A_ fd, EV_IOFDSET | 1);	867	fd_change (EV_A_ fd, EV__IOFDSET | 1);
814	}	868	}
815	}	869	}
816		870
817	/*****************************************************************************/	871	/*****************************************************************************/
818		872
…		…
834	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	888	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
835	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	889	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
836	#define UPHEAP_DONE(p,k) ((p) == (k))	890	#define UPHEAP_DONE(p,k) ((p) == (k))
837		891
838	/* away from the root */	892	/* away from the root */
839	void inline_speed	893	inline_speed void
840	downheap (ANHE *heap, int N, int k)	894	downheap (ANHE *heap, int N, int k)
841	{	895	{
842	ANHE he = heap [k];	896	ANHE he = heap [k];
843	ANHE *E = heap + N + HEAP0;	897	ANHE *E = heap + N + HEAP0;
844		898
…		…
884	#define HEAP0 1	938	#define HEAP0 1
885	#define HPARENT(k) ((k) >> 1)	939	#define HPARENT(k) ((k) >> 1)
886	#define UPHEAP_DONE(p,k) (!(p))	940	#define UPHEAP_DONE(p,k) (!(p))
887		941
888	/* away from the root */	942	/* away from the root */
889	void inline_speed	943	inline_speed void
890	downheap (ANHE *heap, int N, int k)	944	downheap (ANHE *heap, int N, int k)
891	{	945	{
892	ANHE he = heap [k];	946	ANHE he = heap [k];
893		947
894	for (;;)	948	for (;;)
…		…
914	ev_active (ANHE_w (he)) = k;	968	ev_active (ANHE_w (he)) = k;
915	}	969	}
916	#endif	970	#endif
917		971
918	/* towards the root */	972	/* towards the root */
919	void inline_speed	973	inline_speed void
920	upheap (ANHE *heap, int k)	974	upheap (ANHE *heap, int k)
921	{	975	{
922	ANHE he = heap [k];	976	ANHE he = heap [k];
923		977
924	for (;;)	978	for (;;)
…		…
935		989
936	heap [k] = he;	990	heap [k] = he;
937	ev_active (ANHE_w (he)) = k;	991	ev_active (ANHE_w (he)) = k;
938	}	992	}
939		993
940	void inline_size	994	inline_size void
941	adjustheap (ANHE *heap, int N, int k)	995	adjustheap (ANHE *heap, int N, int k)
942	{	996	{
943	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]))
944	upheap (heap, k);	998	upheap (heap, k);
945	else	999	else
946	downheap (heap, N, k);	1000	downheap (heap, N, k);
947	}	1001	}
948		1002
949	/* 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 */
950	void inline_size	1004	inline_size void
951	reheap (ANHE *heap, int N)	1005	reheap (ANHE *heap, int N)
952	{	1006	{
953	int i;	1007	int i;
954		1008
955	/* 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 */
…		…
969	static ANSIG *signals;	1023	static ANSIG *signals;
970	static int signalmax;	1024	static int signalmax;
971		1025
972	static EV_ATOMIC_T gotsig;	1026	static EV_ATOMIC_T gotsig;
973		1027
974	void inline_size
975	signals_init (ANSIG *base, int count)
976	{
977	while (count--)
978	{
979	base->head = 0;
980	base->gotsig = 0;
981
982	++base;
983	}
984	}
985
986	/*****************************************************************************/	1028	/*****************************************************************************/
987		1029
988	void inline_speed	1030	inline_speed void
989	fd_intern (int fd)	1031	fd_intern (int fd)
990	{	1032	{
991	#ifdef _WIN32	1033	#ifdef _WIN32
992	unsigned long arg = 1;	1034	unsigned long arg = 1;
993	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1035	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1011	}	1053	}
1012	else	1054	else
1013	#endif	1055	#endif
1014	{	1056	{
1015	while (pipe (evpipe))	1057	while (pipe (evpipe))
1016	syserr ("(libev) error creating signal/async pipe");	1058	ev_syserr ("(libev) error creating signal/async pipe");
1017		1059
1018	fd_intern (evpipe [0]);	1060	fd_intern (evpipe [0]);
1019	fd_intern (evpipe [1]);	1061	fd_intern (evpipe [1]);
1020	ev_io_set (&pipeev, evpipe [0], EV_READ);	1062	ev_io_set (&pipeev, evpipe [0], EV_READ);
1021	}	1063	}
…		…
1023	ev_io_start (EV_A_ &pipeev);	1065	ev_io_start (EV_A_ &pipeev);
1024	ev_unref (EV_A); /* watcher should not keep loop alive */	1066	ev_unref (EV_A); /* watcher should not keep loop alive */
1025	}	1067	}
1026	}	1068	}
1027		1069
1028	void inline_size	1070	inline_size void
1029	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1071	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1030	{	1072	{
1031	if (!*flag)	1073	if (!*flag)
1032	{	1074	{
1033	int old_errno = errno; /* save errno because write might clobber it */	1075	int old_errno = errno; /* save errno because write might clobber it */
…		…
1111	ev_feed_signal_event (EV_P_ int signum)	1153	ev_feed_signal_event (EV_P_ int signum)
1112	{	1154	{
1113	WL w;	1155	WL w;
1114		1156
1115	#if EV_MULTIPLICITY	1157	#if EV_MULTIPLICITY
1116	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));
1117	#endif	1159	#endif
1118		1160
1119	--signum;	1161	--signum;
1120		1162
1121	if (signum < 0 || signum >= signalmax)	1163	if (signum < 0 || signum >= signalmax)
…		…
1137		1179
1138	#ifndef WIFCONTINUED	1180	#ifndef WIFCONTINUED
1139	# define WIFCONTINUED(status) 0	1181	# define WIFCONTINUED(status) 0
1140	#endif	1182	#endif
1141		1183
1142	void inline_speed	1184	inline_speed void
1143	child_reap (EV_P_ int chain, int pid, int status)	1185	child_reap (EV_P_ int chain, int pid, int status)
1144	{	1186	{
1145	ev_child *w;	1187	ev_child *w;
1146	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1188	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1147		1189
…		…
1250	/* kqueue is borked on everything but netbsd apparently */	1292	/* kqueue is borked on everything but netbsd apparently */
1251	/* 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 */
1252	flags &= ~EVBACKEND_KQUEUE;	1294	flags &= ~EVBACKEND_KQUEUE;
1253	#endif	1295	#endif
1254	#ifdef __APPLE__	1296	#ifdef __APPLE__
1255	// flags &= ~EVBACKEND_KQUEUE; for documentation	1297	/* only select works correctly on that "unix-certified" platform */
1256	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 */
1257	#endif	1300	#endif
1258		1301
1259	return flags;	1302	return flags;
1260	}	1303	}
1261		1304
…		…
1298	static void noinline	1341	static void noinline
1299	loop_init (EV_P_ unsigned int flags)	1342	loop_init (EV_P_ unsigned int flags)
1300	{	1343	{
1301	if (!backend)	1344	if (!backend)
1302	{	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
1303	#if EV_USE_MONOTONIC	1356	#if EV_USE_MONOTONIC
		1357	if (!have_monotonic)
1304	{	1358	{
1305	struct timespec ts;	1359	struct timespec ts;
		1360
1306	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1307	have_monotonic = 1;	1362	have_monotonic = 1;
1308	}	1363	}
1309	#endif	1364	#endif
1310		1365
1311	ev_rt_now = ev_time ();	1366	ev_rt_now = ev_time ();
1312	mn_now = get_clock ();	1367	mn_now = get_clock ();
1313	now_floor = mn_now;	1368	now_floor = mn_now;
…		…
1412	}	1467	}
1413		1468
1414	ev_free (anfds); anfdmax = 0;	1469	ev_free (anfds); anfdmax = 0;
1415		1470
1416	/* 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);
1417	array_free (fdchange, EMPTY);	1473	array_free (fdchange, EMPTY);
1418	array_free (timer, EMPTY);	1474	array_free (timer, EMPTY);
1419	#if EV_PERIODIC_ENABLE	1475	#if EV_PERIODIC_ENABLE
1420	array_free (periodic, EMPTY);	1476	array_free (periodic, EMPTY);
1421	#endif	1477	#endif
…		…
1430		1486
1431	backend = 0;	1487	backend = 0;
1432	}	1488	}
1433		1489
1434	#if EV_USE_INOTIFY	1490	#if EV_USE_INOTIFY
1435	void inline_size infy_fork (EV_P);	1491	inline_size void infy_fork (EV_P);
1436	#endif	1492	#endif
1437		1493
1438	void inline_size	1494	inline_size void
1439	loop_fork (EV_P)	1495	loop_fork (EV_P)
1440	{	1496	{
1441	#if EV_USE_PORT	1497	#if EV_USE_PORT
1442	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1498	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1443	#endif	1499	#endif
…		…
1514		1570
1515	#if EV_VERIFY	1571	#if EV_VERIFY
1516	static void noinline	1572	static void noinline
1517	verify_watcher (EV_P_ W w)	1573	verify_watcher (EV_P_ W w)
1518	{	1574	{
1519	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1575	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1520		1576
1521	if (w->pending)	1577	if (w->pending)
1522	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));
1523	}	1579	}
1524		1580
1525	static void noinline	1581	static void noinline
1526	verify_heap (EV_P_ ANHE *heap, int N)	1582	verify_heap (EV_P_ ANHE *heap, int N)
1527	{	1583	{
1528	int i;	1584	int i;
1529		1585
1530	for (i = HEAP0; i < N + HEAP0; ++i)	1586	for (i = HEAP0; i < N + HEAP0; ++i)
1531	{	1587	{
1532	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));
1533	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])));
1534	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]))));
1535		1591
1536	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1592	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1537	}	1593	}
1538	}	1594	}
1539		1595
1540	static void noinline	1596	static void noinline
1541	array_verify (EV_P_ W *ws, int cnt)	1597	array_verify (EV_P_ W *ws, int cnt)
1542	{	1598	{
1543	while (cnt--)	1599	while (cnt--)
1544	{	1600	{
1545	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1601	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1546	verify_watcher (EV_A_ ws [cnt]);	1602	verify_watcher (EV_A_ ws [cnt]);
1547	}	1603	}
1548	}	1604	}
1549	#endif	1605	#endif
1550		1606
…		…
1557		1613
1558	assert (activecnt >= -1);	1614	assert (activecnt >= -1);
1559		1615
1560	assert (fdchangemax >= fdchangecnt);	1616	assert (fdchangemax >= fdchangecnt);
1561	for (i = 0; i < fdchangecnt; ++i)	1617	for (i = 0; i < fdchangecnt; ++i)
1562	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1618	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1563		1619
1564	assert (anfdmax >= 0);	1620	assert (anfdmax >= 0);
1565	for (i = 0; i < anfdmax; ++i)	1621	for (i = 0; i < anfdmax; ++i)
1566	for (w = anfds [i].head; w; w = w->next)	1622	for (w = anfds [i].head; w; w = w->next)
1567	{	1623	{
1568	verify_watcher (EV_A_ (W)w);	1624	verify_watcher (EV_A_ (W)w);
1569	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1625	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1570	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));
1571	}	1627	}
1572		1628
1573	assert (timermax >= timercnt);	1629	assert (timermax >= timercnt);
1574	verify_heap (EV_A_ timers, timercnt);	1630	verify_heap (EV_A_ timers, timercnt);
1575		1631
…		…
1652	{	1708	{
1653	#if EV_MULTIPLICITY	1709	#if EV_MULTIPLICITY
1654	struct ev_loop *loop = ev_default_loop_ptr;	1710	struct ev_loop *loop = ev_default_loop_ptr;
1655	#endif	1711	#endif
1656		1712
		1713	ev_default_loop_ptr = 0;
		1714
1657	#ifndef _WIN32	1715	#ifndef _WIN32
1658	ev_ref (EV_A); /* child watcher */	1716	ev_ref (EV_A); /* child watcher */
1659	ev_signal_stop (EV_A_ &childev);	1717	ev_signal_stop (EV_A_ &childev);
1660	#endif	1718	#endif
1661		1719
…		…
1667	{	1725	{
1668	#if EV_MULTIPLICITY	1726	#if EV_MULTIPLICITY
1669	struct ev_loop *loop = ev_default_loop_ptr;	1727	struct ev_loop *loop = ev_default_loop_ptr;
1670	#endif	1728	#endif
1671		1729
1672	if (backend)
1673	postfork = 1; /* must be in line with ev_loop_fork */	1730	postfork = 1; /* must be in line with ev_loop_fork */
1674	}	1731	}
1675		1732
1676	/*****************************************************************************/	1733	/*****************************************************************************/
1677		1734
1678	void	1735	void
1679	ev_invoke (EV_P_ void *w, int revents)	1736	ev_invoke (EV_P_ void *w, int revents)
1680	{	1737	{
1681	EV_CB_INVOKE ((W)w, revents);	1738	EV_CB_INVOKE ((W)w, revents);
1682	}	1739	}
1683		1740
1684	void inline_speed	1741	inline_speed void
1685	call_pending (EV_P)	1742	call_pending (EV_P)
1686	{	1743	{
1687	int pri;	1744	int pri;
1688		1745
1689	for (pri = NUMPRI; pri--; )	1746	for (pri = NUMPRI; pri--; )
…		…
1691	{	1748	{
1692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1693		1750
1694	if (expect_true (p->w))	1751	if (expect_true (p->w))
1695	{	1752	{
1696	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1753	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1697		1754
1698	p->w->pending = 0;	1755	p->w->pending = 0;
1699	EV_CB_INVOKE (p->w, p->events);	1756	EV_CB_INVOKE (p->w, p->events);
1700	EV_FREQUENT_CHECK;	1757	EV_FREQUENT_CHECK;
1701	}	1758	}
1702	}	1759	}
1703	}	1760	}
1704		1761
1705	#if EV_IDLE_ENABLE	1762	#if EV_IDLE_ENABLE
1706	void inline_size	1763	inline_size void
1707	idle_reify (EV_P)	1764	idle_reify (EV_P)
1708	{	1765	{
1709	if (expect_false (idleall))	1766	if (expect_false (idleall))
1710	{	1767	{
1711	int pri;	1768	int pri;
…		…
1723	}	1780	}
1724	}	1781	}
1725	}	1782	}
1726	#endif	1783	#endif
1727		1784
1728	void inline_size	1785	inline_size void
1729	timers_reify (EV_P)	1786	timers_reify (EV_P)
1730	{	1787	{
1731	EV_FREQUENT_CHECK;	1788	EV_FREQUENT_CHECK;
1732		1789
1733	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1790	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1734	{	1791	{
1735	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1792	do
1736
1737	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1738
1739	/* first reschedule or stop timer */
1740	if (w->repeat)
1741	{	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	{
1742	ev_at (w) += w->repeat;	1801	ev_at (w) += w->repeat;
1743	if (ev_at (w) < mn_now)	1802	if (ev_at (w) < mn_now)
1744	ev_at (w) = mn_now;	1803	ev_at (w) = mn_now;
1745		1804
1746	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.));
1747		1806
1748	ANHE_at_cache (timers [HEAP0]);	1807	ANHE_at_cache (timers [HEAP0]);
1749	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);
1750	}	1815	}
1751	else	1816	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1752	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1753		1817
1754	EV_FREQUENT_CHECK;
1755	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1818	feed_reverse_done (EV_A_ EV_TIMEOUT);
1756	}	1819	}
1757	}	1820	}
1758		1821
1759	#if EV_PERIODIC_ENABLE	1822	#if EV_PERIODIC_ENABLE
1760	void inline_size	1823	inline_size void
1761	periodics_reify (EV_P)	1824	periodics_reify (EV_P)
1762	{	1825	{
1763	EV_FREQUENT_CHECK;	1826	EV_FREQUENT_CHECK;
1764		1827
1765	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1828	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1766	{	1829	{
1767	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1830	int feed_count = 0;
1768		1831
1769	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1832	do
1770
1771	/* first reschedule or stop timer */
1772	if (w->reschedule_cb)
1773	{	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	{
1774	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1841	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1775		1842
1776	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));
1777		1844
1778	ANHE_at_cache (periodics [HEAP0]);	1845	ANHE_at_cache (periodics [HEAP0]);
1779	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);
1780	}	1872	}
1781	else if (w->interval)	1873	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1782	{
1783	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1784	/* if next trigger time is not sufficiently in the future, put it there */
1785	/* this might happen because of floating point inexactness */
1786	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1787	{
1788	ev_at (w) += w->interval;
1789		1874
1790	/* if interval is unreasonably low we might still have a time in the past */
1791	/* so correct this. this will make the periodic very inexact, but the user */
1792	/* has effectively asked to get triggered more often than possible */
1793	if (ev_at (w) < ev_rt_now)
1794	ev_at (w) = ev_rt_now;
1795	}
1796
1797	ANHE_at_cache (periodics [HEAP0]);
1798	downheap (periodics, periodiccnt, HEAP0);
1799	}
1800	else
1801	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1802
1803	EV_FREQUENT_CHECK;
1804	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1875	feed_reverse_done (EV_A_ EV_PERIODIC);
1805	}	1876	}
1806	}	1877	}
1807		1878
1808	static void noinline	1879	static void noinline
1809	periodics_reschedule (EV_P)	1880	periodics_reschedule (EV_P)
…		…
1825		1896
1826	reheap (periodics, periodiccnt);	1897	reheap (periodics, periodiccnt);
1827	}	1898	}
1828	#endif	1899	#endif
1829		1900
1830	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
1831	time_update (EV_P_ ev_tstamp max_block)	1915	time_update (EV_P_ ev_tstamp max_block)
1832	{	1916	{
1833	int i;	1917	int i;
1834		1918
1835	#if EV_USE_MONOTONIC	1919	#if EV_USE_MONOTONIC
…		…
1868	ev_rt_now = ev_time ();	1952	ev_rt_now = ev_time ();
1869	mn_now = get_clock ();	1953	mn_now = get_clock ();
1870	now_floor = mn_now;	1954	now_floor = mn_now;
1871	}	1955	}
1872		1956
		1957	/* no timer adjustment, as the monotonic clock doesn't jump */
		1958	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1873	# if EV_PERIODIC_ENABLE	1959	# if EV_PERIODIC_ENABLE
1874	periodics_reschedule (EV_A);	1960	periodics_reschedule (EV_A);
1875	# endif	1961	# endif
1876	/* no timer adjustment, as the monotonic clock doesn't jump */
1877	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1878	}	1962	}
1879	else	1963	else
1880	#endif	1964	#endif
1881	{	1965	{
1882	ev_rt_now = ev_time ();	1966	ev_rt_now = ev_time ();
1883		1967
1884	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))
1885	{	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);
1886	#if EV_PERIODIC_ENABLE	1972	#if EV_PERIODIC_ENABLE
1887	periodics_reschedule (EV_A);	1973	periodics_reschedule (EV_A);
1888	#endif	1974	#endif
1889	/* adjust timers. this is easy, as the offset is the same for all of them */
1890	for (i = 0; i < timercnt; ++i)
1891	{
1892	ANHE *he = timers + i + HEAP0;
1893	ANHE_w (*he)->at += ev_rt_now - mn_now;
1894	ANHE_at_cache (*he);
1895	}
1896	}	1975	}
1897		1976
1898	mn_now = ev_rt_now;	1977	mn_now = ev_rt_now;
1899	}	1978	}
1900	}
1901
1902	void
1903	ev_ref (EV_P)
1904	{
1905	++activecnt;
1906	}
1907
1908	void
1909	ev_unref (EV_P)
1910	{
1911	--activecnt;
1912	}
1913
1914	void
1915	ev_now_update (EV_P)
1916	{
1917	time_update (EV_A_ 1e100);
1918	}	1979	}
1919		1980
1920	static int loop_done;	1981	static int loop_done;
1921		1982
1922	void	1983	void
…		…
1956	{	2017	{
1957	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2018	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1958	call_pending (EV_A);	2019	call_pending (EV_A);
1959	}	2020	}
1960		2021
1961	if (expect_false (!activecnt))
1962	break;
1963
1964	/* we might have forked, so reify kernel state if necessary */	2022	/* we might have forked, so reify kernel state if necessary */
1965	if (expect_false (postfork))	2023	if (expect_false (postfork))
1966	loop_fork (EV_A);	2024	loop_fork (EV_A);
1967		2025
1968	/* update fd-related kernel structures */	2026	/* update fd-related kernel structures */
…		…
1975		2033
1976	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2034	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1977	{	2035	{
1978	/* update time to cancel out callback processing overhead */	2036	/* update time to cancel out callback processing overhead */
1979	time_update (EV_A_ 1e100);	2037	time_update (EV_A_ 1e100);
1980
1981	waittime = MAX_BLOCKTIME;
1982		2038
1983	if (timercnt)	2039	if (timercnt)
1984	{	2040	{
1985	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2041	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1986	if (waittime > to) waittime = to;	2042	if (waittime > to) waittime = to;
…		…
2047	ev_unloop (EV_P_ int how)	2103	ev_unloop (EV_P_ int how)
2048	{	2104	{
2049	loop_done = how;	2105	loop_done = how;
2050	}	2106	}
2051		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	timers_reschedule (EV_A_ mn_now - mn_prev);
		2139	#if EV_PERIODIC_ENABLE
		2140	periodics_reschedule (EV_A);
		2141	#endif
		2142	}
		2143
2052	/*****************************************************************************/	2144	/*****************************************************************************/
2053		2145
2054	void inline_size	2146	inline_size void
2055	wlist_add (WL *head, WL elem)	2147	wlist_add (WL *head, WL elem)
2056	{	2148	{
2057	elem->next = *head;	2149	elem->next = *head;
2058	*head = elem;	2150	*head = elem;
2059	}	2151	}
2060		2152
2061	void inline_size	2153	inline_size void
2062	wlist_del (WL *head, WL elem)	2154	wlist_del (WL *head, WL elem)
2063	{	2155	{
2064	while (*head)	2156	while (*head)
2065	{	2157	{
2066	if (*head == elem)	2158	if (*head == elem)
…		…
2071		2163
2072	head = &(*head)->next;	2164	head = &(*head)->next;
2073	}	2165	}
2074	}	2166	}
2075		2167
2076	void inline_speed	2168	inline_speed void
2077	clear_pending (EV_P_ W w)	2169	clear_pending (EV_P_ W w)
2078	{	2170	{
2079	if (w->pending)	2171	if (w->pending)
2080	{	2172	{
2081	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2173	pendings [ABSPRI (w)][w->pending - 1].w = 0;
…		…
2098	}	2190	}
2099	else	2191	else
2100	return 0;	2192	return 0;
2101	}	2193	}
2102		2194
2103	void inline_size	2195	inline_size void
2104	pri_adjust (EV_P_ W w)	2196	pri_adjust (EV_P_ W w)
2105	{	2197	{
2106	int pri = w->priority;	2198	int pri = w->priority;
2107	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2199	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2108	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2200	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2109	w->priority = pri;	2201	w->priority = pri;
2110	}	2202	}
2111		2203
2112	void inline_speed	2204	inline_speed void
2113	ev_start (EV_P_ W w, int active)	2205	ev_start (EV_P_ W w, int active)
2114	{	2206	{
2115	pri_adjust (EV_A_ w);	2207	pri_adjust (EV_A_ w);
2116	w->active = active;	2208	w->active = active;
2117	ev_ref (EV_A);	2209	ev_ref (EV_A);
2118	}	2210	}
2119		2211
2120	void inline_size	2212	inline_size void
2121	ev_stop (EV_P_ W w)	2213	ev_stop (EV_P_ W w)
2122	{	2214	{
2123	ev_unref (EV_A);	2215	ev_unref (EV_A);
2124	w->active = 0;	2216	w->active = 0;
2125	}	2217	}
…		…
2132	int fd = w->fd;	2224	int fd = w->fd;
2133		2225
2134	if (expect_false (ev_is_active (w)))	2226	if (expect_false (ev_is_active (w)))
2135	return;	2227	return;
2136		2228
2137	assert (("ev_io_start called with negative fd", fd >= 0));	2229	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2230	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2138		2231
2139	EV_FREQUENT_CHECK;	2232	EV_FREQUENT_CHECK;
2140		2233
2141	ev_start (EV_A_ (W)w, 1);	2234	ev_start (EV_A_ (W)w, 1);
2142	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2235	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2143	wlist_add (&anfds[fd].head, (WL)w);	2236	wlist_add (&anfds[fd].head, (WL)w);
2144		2237
2145	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2238	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2146	w->events &= ~EV_IOFDSET;	2239	w->events &= ~EV__IOFDSET;
2147		2240
2148	EV_FREQUENT_CHECK;	2241	EV_FREQUENT_CHECK;
2149	}	2242	}
2150		2243
2151	void noinline	2244	void noinline
…		…
2153	{	2246	{
2154	clear_pending (EV_A_ (W)w);	2247	clear_pending (EV_A_ (W)w);
2155	if (expect_false (!ev_is_active (w)))	2248	if (expect_false (!ev_is_active (w)))
2156	return;	2249	return;
2157		2250
2158	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2251	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2159		2252
2160	EV_FREQUENT_CHECK;	2253	EV_FREQUENT_CHECK;
2161		2254
2162	wlist_del (&anfds[w->fd].head, (WL)w);	2255	wlist_del (&anfds[w->fd].head, (WL)w);
2163	ev_stop (EV_A_ (W)w);	2256	ev_stop (EV_A_ (W)w);
…		…
2173	if (expect_false (ev_is_active (w)))	2266	if (expect_false (ev_is_active (w)))
2174	return;	2267	return;
2175		2268
2176	ev_at (w) += mn_now;	2269	ev_at (w) += mn_now;
2177		2270
2178	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2271	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2179		2272
2180	EV_FREQUENT_CHECK;	2273	EV_FREQUENT_CHECK;
2181		2274
2182	++timercnt;	2275	++timercnt;
2183	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2276	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2186	ANHE_at_cache (timers [ev_active (w)]);	2279	ANHE_at_cache (timers [ev_active (w)]);
2187	upheap (timers, ev_active (w));	2280	upheap (timers, ev_active (w));
2188		2281
2189	EV_FREQUENT_CHECK;	2282	EV_FREQUENT_CHECK;
2190		2283
2191	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2284	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2192	}	2285	}
2193		2286
2194	void noinline	2287	void noinline
2195	ev_timer_stop (EV_P_ ev_timer *w)	2288	ev_timer_stop (EV_P_ ev_timer *w)
2196	{	2289	{
…		…
2201	EV_FREQUENT_CHECK;	2294	EV_FREQUENT_CHECK;
2202		2295
2203	{	2296	{
2204	int active = ev_active (w);	2297	int active = ev_active (w);
2205		2298
2206	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2299	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2207		2300
2208	--timercnt;	2301	--timercnt;
2209		2302
2210	if (expect_true (active < timercnt + HEAP0))	2303	if (expect_true (active < timercnt + HEAP0))
2211	{	2304	{
…		…
2255		2348
2256	if (w->reschedule_cb)	2349	if (w->reschedule_cb)
2257	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2350	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2258	else if (w->interval)	2351	else if (w->interval)
2259	{	2352	{
2260	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2353	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2261	/* this formula differs from the one in periodic_reify because we do not always round up */	2354	/* this formula differs from the one in periodic_reify because we do not always round up */
2262	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2355	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2263	}	2356	}
2264	else	2357	else
2265	ev_at (w) = w->offset;	2358	ev_at (w) = w->offset;
…		…
2273	ANHE_at_cache (periodics [ev_active (w)]);	2366	ANHE_at_cache (periodics [ev_active (w)]);
2274	upheap (periodics, ev_active (w));	2367	upheap (periodics, ev_active (w));
2275		2368
2276	EV_FREQUENT_CHECK;	2369	EV_FREQUENT_CHECK;
2277		2370
2278	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2371	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2279	}	2372	}
2280		2373
2281	void noinline	2374	void noinline
2282	ev_periodic_stop (EV_P_ ev_periodic *w)	2375	ev_periodic_stop (EV_P_ ev_periodic *w)
2283	{	2376	{
…		…
2288	EV_FREQUENT_CHECK;	2381	EV_FREQUENT_CHECK;
2289		2382
2290	{	2383	{
2291	int active = ev_active (w);	2384	int active = ev_active (w);
2292		2385
2293	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2386	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2294		2387
2295	--periodiccnt;	2388	--periodiccnt;
2296		2389
2297	if (expect_true (active < periodiccnt + HEAP0))	2390	if (expect_true (active < periodiccnt + HEAP0))
2298	{	2391	{
…		…
2321		2414
2322	void noinline	2415	void noinline
2323	ev_signal_start (EV_P_ ev_signal *w)	2416	ev_signal_start (EV_P_ ev_signal *w)
2324	{	2417	{
2325	#if EV_MULTIPLICITY	2418	#if EV_MULTIPLICITY
2326	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2419	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2327	#endif	2420	#endif
2328	if (expect_false (ev_is_active (w)))	2421	if (expect_false (ev_is_active (w)))
2329	return;	2422	return;
2330		2423
2331	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2424	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2332		2425
2333	evpipe_init (EV_A);	2426	evpipe_init (EV_A);
2334		2427
2335	EV_FREQUENT_CHECK;	2428	EV_FREQUENT_CHECK;
2336		2429
…		…
2339	sigset_t full, prev;	2432	sigset_t full, prev;
2340	sigfillset (&full);	2433	sigfillset (&full);
2341	sigprocmask (SIG_SETMASK, &full, &prev);	2434	sigprocmask (SIG_SETMASK, &full, &prev);
2342	#endif	2435	#endif
2343		2436
2344	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2437	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2345		2438
2346	#ifndef _WIN32	2439	#ifndef _WIN32
2347	sigprocmask (SIG_SETMASK, &prev, 0);	2440	sigprocmask (SIG_SETMASK, &prev, 0);
2348	#endif	2441	#endif
2349	}	2442	}
…		…
2387		2480
2388	void	2481	void
2389	ev_child_start (EV_P_ ev_child *w)	2482	ev_child_start (EV_P_ ev_child *w)
2390	{	2483	{
2391	#if EV_MULTIPLICITY	2484	#if EV_MULTIPLICITY
2392	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2485	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2393	#endif	2486	#endif
2394	if (expect_false (ev_is_active (w)))	2487	if (expect_false (ev_is_active (w)))
2395	return;	2488	return;
2396		2489
2397	EV_FREQUENT_CHECK;	2490	EV_FREQUENT_CHECK;
…		…
2422	# ifdef _WIN32	2515	# ifdef _WIN32
2423	# undef lstat	2516	# undef lstat
2424	# define lstat(a,b) _stati64 (a,b)	2517	# define lstat(a,b) _stati64 (a,b)
2425	# endif	2518	# endif
2426		2519
2427	#define DEF_STAT_INTERVAL 5.0074891	2520	#define DEF_STAT_INTERVAL 5.0074891
		2521	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2428	#define MIN_STAT_INTERVAL 0.1074891	2522	#define MIN_STAT_INTERVAL 0.1074891
2429		2523
2430	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2524	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2431		2525
2432	#if EV_USE_INOTIFY	2526	#if EV_USE_INOTIFY
2433	# define EV_INOTIFY_BUFSIZE 8192	2527	# define EV_INOTIFY_BUFSIZE 8192
…		…
2437	{	2531	{
2438	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);	2532	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);
2439		2533
2440	if (w->wd < 0)	2534	if (w->wd < 0)
2441	{	2535	{
		2536	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2442	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2537	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2443		2538
2444	/* monitor some parent directory for speedup hints */	2539	/* monitor some parent directory for speedup hints */
2445	/* note that exceeding the hardcoded limit is not a correctness issue, */	2540	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2446	/* but an efficiency issue only */	2541	/* but an efficiency issue only */
2447	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2542	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2448	{	2543	{
2449	char path [4096];	2544	char path [4096];
2450	strcpy (path, w->path);	2545	strcpy (path, w->path);
…		…
2454	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2549	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2455	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2550	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2456		2551
2457	char *pend = strrchr (path, '/');	2552	char *pend = strrchr (path, '/');
2458		2553
2459	if (!pend)	2554	if (!pend || pend == path)
2460	break; /* whoops, no '/', complain to your admin */	2555	break;
2461		2556
2462	*pend = 0;	2557	*pend = 0;
2463	w->wd = inotify_add_watch (fs_fd, path, mask);	2558	w->wd = inotify_add_watch (fs_fd, path, mask);
2464	}	2559	}
2465	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2560	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2466	}	2561	}
2467	}	2562	}
2468	else
2469	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2470		2563
2471	if (w->wd >= 0)	2564	if (w->wd >= 0)
		2565	{
2472	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2566	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2567
		2568	/* now local changes will be tracked by inotify, but remote changes won't */
		2569	/* unless the filesystem it known to be local, we therefore still poll */
		2570	/* also do poll on <2.6.25, but with normal frequency */
		2571	struct statfs sfs;
		2572
		2573	if (fs_2625 && !statfs (w->path, &sfs))
		2574	if (sfs.f_type == 0x1373 /* devfs */
		2575	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2576	|| sfs.f_type == 0x3153464a /* jfs */
		2577	|| sfs.f_type == 0x52654973 /* reiser3 */
		2578	|| sfs.f_type == 0x01021994 /* tempfs */
		2579	|| sfs.f_type == 0x58465342 /* xfs */)
		2580	return;
		2581
		2582	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2583	ev_timer_again (EV_A_ &w->timer);
		2584	}
2473	}	2585	}
2474		2586
2475	static void noinline	2587	static void noinline
2476	infy_del (EV_P_ ev_stat *w)	2588	infy_del (EV_P_ ev_stat *w)
2477	{	2589	{
…		…
2491		2603
2492	static void noinline	2604	static void noinline
2493	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2605	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2494	{	2606	{
2495	if (slot < 0)	2607	if (slot < 0)
2496	/* overflow, need to check for all hahs slots */	2608	/* overflow, need to check for all hash slots */
2497	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2609	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2498	infy_wd (EV_A_ slot, wd, ev);	2610	infy_wd (EV_A_ slot, wd, ev);
2499	else	2611	else
2500	{	2612	{
2501	WL w_;	2613	WL w_;
…		…
2507		2619
2508	if (w->wd == wd || wd == -1)	2620	if (w->wd == wd || wd == -1)
2509	{	2621	{
2510	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2622	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2511	{	2623	{
		2624	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2512	w->wd = -1;	2625	w->wd = -1;
2513	infy_add (EV_A_ w); /* re-add, no matter what */	2626	infy_add (EV_A_ w); /* re-add, no matter what */
2514	}	2627	}
2515		2628
2516	stat_timer_cb (EV_A_ &w->timer, 0);	2629	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2529		2642
2530	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2643	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2531	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2644	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2532	}	2645	}
2533		2646
2534	void inline_size	2647	inline_size void
		2648	check_2625 (EV_P)
		2649	{
		2650	/* kernels < 2.6.25 are borked
		2651	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2652	*/
		2653	struct utsname buf;
		2654	int major, minor, micro;
		2655
		2656	if (uname (&buf))
		2657	return;
		2658
		2659	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2660	return;
		2661
		2662	if (major < 2
		2663	|| (major == 2 && minor < 6)
		2664	|| (major == 2 && minor == 6 && micro < 25))
		2665	return;
		2666
		2667	fs_2625 = 1;
		2668	}
		2669
		2670	inline_size void
2535	infy_init (EV_P)	2671	infy_init (EV_P)
2536	{	2672	{
2537	if (fs_fd != -2)	2673	if (fs_fd != -2)
2538	return;	2674	return;
		2675
		2676	fs_fd = -1;
		2677
		2678	check_2625 (EV_A);
2539		2679
2540	fs_fd = inotify_init ();	2680	fs_fd = inotify_init ();
2541		2681
2542	if (fs_fd >= 0)	2682	if (fs_fd >= 0)
2543	{	2683	{
…		…
2545	ev_set_priority (&fs_w, EV_MAXPRI);	2685	ev_set_priority (&fs_w, EV_MAXPRI);
2546	ev_io_start (EV_A_ &fs_w);	2686	ev_io_start (EV_A_ &fs_w);
2547	}	2687	}
2548	}	2688	}
2549		2689
2550	void inline_size	2690	inline_size void
2551	infy_fork (EV_P)	2691	infy_fork (EV_P)
2552	{	2692	{
2553	int slot;	2693	int slot;
2554		2694
2555	if (fs_fd < 0)	2695	if (fs_fd < 0)
…		…
2571	w->wd = -1;	2711	w->wd = -1;
2572		2712
2573	if (fs_fd >= 0)	2713	if (fs_fd >= 0)
2574	infy_add (EV_A_ w); /* re-add, no matter what */	2714	infy_add (EV_A_ w); /* re-add, no matter what */
2575	else	2715	else
2576	ev_timer_start (EV_A_ &w->timer);	2716	ev_timer_again (EV_A_ &w->timer);
2577	}	2717	}
2578
2579	}	2718	}
2580	}	2719	}
2581		2720
2582	#endif	2721	#endif
2583		2722
…		…
2619	|| w->prev.st_atime != w->attr.st_atime	2758	|| w->prev.st_atime != w->attr.st_atime
2620	|| w->prev.st_mtime != w->attr.st_mtime	2759	|| w->prev.st_mtime != w->attr.st_mtime
2621	|| w->prev.st_ctime != w->attr.st_ctime	2760	|| w->prev.st_ctime != w->attr.st_ctime
2622	) {	2761	) {
2623	#if EV_USE_INOTIFY	2762	#if EV_USE_INOTIFY
		2763	if (fs_fd >= 0)
		2764	{
2624	infy_del (EV_A_ w);	2765	infy_del (EV_A_ w);
2625	infy_add (EV_A_ w);	2766	infy_add (EV_A_ w);
2626	ev_stat_stat (EV_A_ w); /* avoid race... */	2767	ev_stat_stat (EV_A_ w); /* avoid race... */
		2768	}
2627	#endif	2769	#endif
2628		2770
2629	ev_feed_event (EV_A_ w, EV_STAT);	2771	ev_feed_event (EV_A_ w, EV_STAT);
2630	}	2772	}
2631	}	2773	}
…		…
2634	ev_stat_start (EV_P_ ev_stat *w)	2776	ev_stat_start (EV_P_ ev_stat *w)
2635	{	2777	{
2636	if (expect_false (ev_is_active (w)))	2778	if (expect_false (ev_is_active (w)))
2637	return;	2779	return;
2638		2780
2639	/* since we use memcmp, we need to clear any padding data etc. */
2640	memset (&w->prev, 0, sizeof (ev_statdata));
2641	memset (&w->attr, 0, sizeof (ev_statdata));
2642
2643	ev_stat_stat (EV_A_ w);	2781	ev_stat_stat (EV_A_ w);
2644		2782
		2783	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2645	if (w->interval < MIN_STAT_INTERVAL)	2784	w->interval = MIN_STAT_INTERVAL;
2646	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2647		2785
2648	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2786	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2649	ev_set_priority (&w->timer, ev_priority (w));	2787	ev_set_priority (&w->timer, ev_priority (w));
2650		2788
2651	#if EV_USE_INOTIFY	2789	#if EV_USE_INOTIFY
2652	infy_init (EV_A);	2790	infy_init (EV_A);
2653		2791
2654	if (fs_fd >= 0)	2792	if (fs_fd >= 0)
2655	infy_add (EV_A_ w);	2793	infy_add (EV_A_ w);
2656	else	2794	else
2657	#endif	2795	#endif
2658	ev_timer_start (EV_A_ &w->timer);	2796	ev_timer_again (EV_A_ &w->timer);
2659		2797
2660	ev_start (EV_A_ (W)w, 1);	2798	ev_start (EV_A_ (W)w, 1);
2661		2799
2662	EV_FREQUENT_CHECK;	2800	EV_FREQUENT_CHECK;
2663	}	2801	}
…		…
2833	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2971	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2834	}	2972	}
2835	}	2973	}
2836	}	2974	}
2837		2975
		2976	static void
		2977	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2978	{
		2979	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		2980
		2981	ev_embed_stop (EV_A_ w);
		2982
		2983	{
		2984	struct ev_loop *loop = w->other;
		2985
		2986	ev_loop_fork (EV_A);
		2987	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2988	}
		2989
		2990	ev_embed_start (EV_A_ w);
		2991	}
		2992
2838	#if 0	2993	#if 0
2839	static void	2994	static void
2840	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2995	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2841	{	2996	{
2842	ev_idle_stop (EV_A_ idle);	2997	ev_idle_stop (EV_A_ idle);
…		…
2849	if (expect_false (ev_is_active (w)))	3004	if (expect_false (ev_is_active (w)))
2850	return;	3005	return;
2851		3006
2852	{	3007	{
2853	struct ev_loop *loop = w->other;	3008	struct ev_loop *loop = w->other;
2854	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3009	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2855	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3010	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2856	}	3011	}
2857		3012
2858	EV_FREQUENT_CHECK;	3013	EV_FREQUENT_CHECK;
2859		3014
…		…
2862		3017
2863	ev_prepare_init (&w->prepare, embed_prepare_cb);	3018	ev_prepare_init (&w->prepare, embed_prepare_cb);
2864	ev_set_priority (&w->prepare, EV_MINPRI);	3019	ev_set_priority (&w->prepare, EV_MINPRI);
2865	ev_prepare_start (EV_A_ &w->prepare);	3020	ev_prepare_start (EV_A_ &w->prepare);
2866		3021
		3022	ev_fork_init (&w->fork, embed_fork_cb);
		3023	ev_fork_start (EV_A_ &w->fork);
		3024
2867	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3025	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2868		3026
2869	ev_start (EV_A_ (W)w, 1);	3027	ev_start (EV_A_ (W)w, 1);
2870		3028
2871	EV_FREQUENT_CHECK;	3029	EV_FREQUENT_CHECK;
…		…
2878	if (expect_false (!ev_is_active (w)))	3036	if (expect_false (!ev_is_active (w)))
2879	return;	3037	return;
2880		3038
2881	EV_FREQUENT_CHECK;	3039	EV_FREQUENT_CHECK;
2882		3040
2883	ev_io_stop (EV_A_ &w->io);	3041	ev_io_stop (EV_A_ &w->io);
2884	ev_prepare_stop (EV_A_ &w->prepare);	3042	ev_prepare_stop (EV_A_ &w->prepare);
2885		3043	ev_fork_stop (EV_A_ &w->fork);
2886	ev_stop (EV_A_ (W)w);
2887		3044
2888	EV_FREQUENT_CHECK;	3045	EV_FREQUENT_CHECK;
2889	}	3046	}
2890	#endif	3047	#endif
2891		3048
…		…
2998	}	3155	}
2999		3156
3000	static void	3157	static void
3001	once_cb_io (EV_P_ ev_io *w, int revents)	3158	once_cb_io (EV_P_ ev_io *w, int revents)
3002	{	3159	{
3003	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3160	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3161
		3162	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
3004	}	3163	}
3005		3164
3006	static void	3165	static void
3007	once_cb_to (EV_P_ ev_timer *w, int revents)	3166	once_cb_to (EV_P_ ev_timer *w, int revents)
3008	{	3167	{
3009	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3168	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3169
		3170	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3010	}	3171	}
3011		3172
3012	void	3173	void
3013	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3174	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
3014	{	3175	{
…		…
3036	ev_timer_set (&once->to, timeout, 0.);	3197	ev_timer_set (&once->to, timeout, 0.);
3037	ev_timer_start (EV_A_ &once->to);	3198	ev_timer_start (EV_A_ &once->to);
3038	}	3199	}
3039	}	3200	}
3040		3201
		3202	/*****************************************************************************/
		3203
		3204	#if 0
		3205	void
		3206	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3207	{
		3208	int i, j;
		3209	ev_watcher_list *wl, *wn;
		3210
		3211	if (types & (EV_IO | EV_EMBED))
		3212	for (i = 0; i < anfdmax; ++i)
		3213	for (wl = anfds [i].head; wl; )
		3214	{
		3215	wn = wl->next;
		3216
		3217	#if EV_EMBED_ENABLE
		3218	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3219	{
		3220	if (types & EV_EMBED)
		3221	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3222	}
		3223	else
		3224	#endif
		3225	#if EV_USE_INOTIFY
		3226	if (ev_cb ((ev_io *)wl) == infy_cb)
		3227	;
		3228	else
		3229	#endif
		3230	if ((ev_io *)wl != &pipeev)
		3231	if (types & EV_IO)
		3232	cb (EV_A_ EV_IO, wl);
		3233
		3234	wl = wn;
		3235	}
		3236
		3237	if (types & (EV_TIMER | EV_STAT))
		3238	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3239	#if EV_STAT_ENABLE
		3240	/*TODO: timer is not always active*/
		3241	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3242	{
		3243	if (types & EV_STAT)
		3244	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3245	}
		3246	else
		3247	#endif
		3248	if (types & EV_TIMER)
		3249	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3250
		3251	#if EV_PERIODIC_ENABLE
		3252	if (types & EV_PERIODIC)
		3253	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3254	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3255	#endif
		3256
		3257	#if EV_IDLE_ENABLE
		3258	if (types & EV_IDLE)
		3259	for (j = NUMPRI; i--; )
		3260	for (i = idlecnt [j]; i--; )
		3261	cb (EV_A_ EV_IDLE, idles [j][i]);
		3262	#endif
		3263
		3264	#if EV_FORK_ENABLE
		3265	if (types & EV_FORK)
		3266	for (i = forkcnt; i--; )
		3267	if (ev_cb (forks [i]) != embed_fork_cb)
		3268	cb (EV_A_ EV_FORK, forks [i]);
		3269	#endif
		3270
		3271	#if EV_ASYNC_ENABLE
		3272	if (types & EV_ASYNC)
		3273	for (i = asynccnt; i--; )
		3274	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3275	#endif
		3276
		3277	if (types & EV_PREPARE)
		3278	for (i = preparecnt; i--; )
		3279	#if EV_EMBED_ENABLE
		3280	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3281	#endif
		3282	cb (EV_A_ EV_PREPARE, prepares [i]);
		3283
		3284	if (types & EV_CHECK)
		3285	for (i = checkcnt; i--; )
		3286	cb (EV_A_ EV_CHECK, checks [i]);
		3287
		3288	if (types & EV_SIGNAL)
		3289	for (i = 0; i < signalmax; ++i)
		3290	for (wl = signals [i].head; wl; )
		3291	{
		3292	wn = wl->next;
		3293	cb (EV_A_ EV_SIGNAL, wl);
		3294	wl = wn;
		3295	}
		3296
		3297	if (types & EV_CHILD)
		3298	for (i = EV_PID_HASHSIZE; i--; )
		3299	for (wl = childs [i]; wl; )
		3300	{
		3301	wn = wl->next;
		3302	cb (EV_A_ EV_CHILD, wl);
		3303	wl = wn;
		3304	}
		3305	/* EV_STAT 0x00001000 /* stat data changed */
		3306	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3307	}
		3308	#endif
		3309
3041	#if EV_MULTIPLICITY	3310	#if EV_MULTIPLICITY
3042	#include "ev_wrap.h"	3311	#include "ev_wrap.h"
3043	#endif	3312	#endif
3044		3313
3045	#ifdef __cplusplus	3314	#ifdef __cplusplus

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