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Comparing libev/ev.c (file contents):
Revision 1.256 by root, Thu Jun 19 06:53:49 2008 UTC vs.
Revision 1.284 by root, Wed Apr 15 17:49:26 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	{
…		…
565	struct timeval tv;	613	struct timeval tv;
566		614
567	tv.tv_sec = (time_t)delay;	615	tv.tv_sec = (time_t)delay;
568	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
569		617
		618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		619	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		620	/* by older ones */
570	select (0, 0, 0, 0, &tv);	621	select (0, 0, 0, 0, &tv);
571	#endif	622	#endif
572	}	623	}
573	}	624	}
574		625
575	/*****************************************************************************/	626	/*****************************************************************************/
576		627
577	#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 */
578		629
579	int inline_size	630	inline_size int
580	array_nextsize (int elem, int cur, int cnt)	631	array_nextsize (int elem, int cur, int cnt)
581	{	632	{
582	int ncur = cur + 1;	633	int ncur = cur + 1;
583		634
584	do	635	do
…		…
601	array_realloc (int elem, void *base, int *cur, int cnt)	652	array_realloc (int elem, void *base, int *cur, int cnt)
602	{	653	{
603	*cur = array_nextsize (elem, *cur, cnt);	654	*cur = array_nextsize (elem, *cur, cnt);
604	return ev_realloc (base, elem * *cur);	655	return ev_realloc (base, elem * *cur);
605	}	656	}
		657
		658	#define array_init_zero(base,count) \
		659	memset ((void *)(base), 0, sizeof (*(base)) * (count))
606		660
607	#define array_needsize(type,base,cur,cnt,init) \	661	#define array_needsize(type,base,cur,cnt,init) \
608	if (expect_false ((cnt) > (cur))) \	662	if (expect_false ((cnt) > (cur))) \
609	{ \	663	{ \
610	int ocur_ = (cur); \	664	int ocur_ = (cur); \
…		…
622	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	676	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
623	}	677	}
624	#endif	678	#endif
625		679
626	#define array_free(stem, idx) \	680	#define array_free(stem, idx) \
627	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
628		682
629	/*****************************************************************************/	683	/*****************************************************************************/
630		684
631	void noinline	685	void noinline
632	ev_feed_event (EV_P_ void *w, int revents)	686	ev_feed_event (EV_P_ void *w, int revents)
…		…
643	pendings [pri][w_->pending - 1].w = w_;	697	pendings [pri][w_->pending - 1].w = w_;
644	pendings [pri][w_->pending - 1].events = revents;	698	pendings [pri][w_->pending - 1].events = revents;
645	}	699	}
646	}	700	}
647		701
648	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
649	queue_events (EV_P_ W *events, int eventcnt, int type)	718	queue_events (EV_P_ W *events, int eventcnt, int type)
650	{	719	{
651	int i;	720	int i;
652		721
653	for (i = 0; i < eventcnt; ++i)	722	for (i = 0; i < eventcnt; ++i)
654	ev_feed_event (EV_A_ events [i], type);	723	ev_feed_event (EV_A_ events [i], type);
655	}	724	}
656		725
657	/*****************************************************************************/	726	/*****************************************************************************/
658		727
659	void inline_size	728	inline_speed void
660	anfds_init (ANFD *base, int count)
661	{
662	while (count--)
663	{
664	base->head = 0;
665	base->events = EV_NONE;
666	base->reify = 0;
667
668	++base;
669	}
670	}
671
672	void inline_speed
673	fd_event (EV_P_ int fd, int revents)	729	fd_event (EV_P_ int fd, int revents)
674	{	730	{
675	ANFD *anfd = anfds + fd;	731	ANFD *anfd = anfds + fd;
676	ev_io *w;	732	ev_io *w;
677		733
…		…
689	{	745	{
690	if (fd >= 0 && fd < anfdmax)	746	if (fd >= 0 && fd < anfdmax)
691	fd_event (EV_A_ fd, revents);	747	fd_event (EV_A_ fd, revents);
692	}	748	}
693		749
694	void inline_size	750	inline_size void
695	fd_reify (EV_P)	751	fd_reify (EV_P)
696	{	752	{
697	int i;	753	int i;
698		754
699	for (i = 0; i < fdchangecnt; ++i)	755	for (i = 0; i < fdchangecnt; ++i)
…		…
714	#ifdef EV_FD_TO_WIN32_HANDLE	770	#ifdef EV_FD_TO_WIN32_HANDLE
715	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
716	#else	772	#else
717	anfd->handle = _get_osfhandle (fd);	773	anfd->handle = _get_osfhandle (fd);
718	#endif	774	#endif
719	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));
720	}	776	}
721	#endif	777	#endif
722		778
723	{	779	{
724	unsigned char o_events = anfd->events;	780	unsigned char o_events = anfd->events;
725	unsigned char o_reify = anfd->reify;	781	unsigned char o_reify = anfd->reify;
726		782
727	anfd->reify = 0;	783	anfd->reify = 0;
728	anfd->events = events;	784	anfd->events = events;
729		785
730	if (o_events != events || o_reify & EV_IOFDSET)	786	if (o_events != events || o_reify & EV__IOFDSET)
731	backend_modify (EV_A_ fd, o_events, events);	787	backend_modify (EV_A_ fd, o_events, events);
732	}	788	}
733	}	789	}
734		790
735	fdchangecnt = 0;	791	fdchangecnt = 0;
736	}	792	}
737		793
738	void inline_size	794	inline_size void
739	fd_change (EV_P_ int fd, int flags)	795	fd_change (EV_P_ int fd, int flags)
740	{	796	{
741	unsigned char reify = anfds [fd].reify;	797	unsigned char reify = anfds [fd].reify;
742	anfds [fd].reify |= flags;	798	anfds [fd].reify |= flags;
743		799
…		…
747	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
748	fdchanges [fdchangecnt - 1] = fd;	804	fdchanges [fdchangecnt - 1] = fd;
749	}	805	}
750	}	806	}
751		807
752	void inline_speed	808	inline_speed void
753	fd_kill (EV_P_ int fd)	809	fd_kill (EV_P_ int fd)
754	{	810	{
755	ev_io *w;	811	ev_io *w;
756		812
757	while ((w = (ev_io *)anfds [fd].head))	813	while ((w = (ev_io *)anfds [fd].head))
…		…
759	ev_io_stop (EV_A_ w);	815	ev_io_stop (EV_A_ w);
760	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);
761	}	817	}
762	}	818	}
763		819
764	int inline_size	820	inline_size int
765	fd_valid (int fd)	821	fd_valid (int fd)
766	{	822	{
767	#ifdef _WIN32	823	#ifdef _WIN32
768	return _get_osfhandle (fd) != -1;	824	return _get_osfhandle (fd) != -1;
769	#else	825	#else
…		…
805		861
806	for (fd = 0; fd < anfdmax; ++fd)	862	for (fd = 0; fd < anfdmax; ++fd)
807	if (anfds [fd].events)	863	if (anfds [fd].events)
808	{	864	{
809	anfds [fd].events = 0;	865	anfds [fd].events = 0;
		866	anfds [fd].emask = 0;
810	fd_change (EV_A_ fd, EV_IOFDSET | 1);	867	fd_change (EV_A_ fd, EV__IOFDSET | 1);
811	}	868	}
812	}	869	}
813		870
814	/*****************************************************************************/	871	/*****************************************************************************/
815		872
…		…
831	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	888	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
832	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	889	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
833	#define UPHEAP_DONE(p,k) ((p) == (k))	890	#define UPHEAP_DONE(p,k) ((p) == (k))
834		891
835	/* away from the root */	892	/* away from the root */
836	void inline_speed	893	inline_speed void
837	downheap (ANHE *heap, int N, int k)	894	downheap (ANHE *heap, int N, int k)
838	{	895	{
839	ANHE he = heap [k];	896	ANHE he = heap [k];
840	ANHE *E = heap + N + HEAP0;	897	ANHE *E = heap + N + HEAP0;
841		898
…		…
881	#define HEAP0 1	938	#define HEAP0 1
882	#define HPARENT(k) ((k) >> 1)	939	#define HPARENT(k) ((k) >> 1)
883	#define UPHEAP_DONE(p,k) (!(p))	940	#define UPHEAP_DONE(p,k) (!(p))
884		941
885	/* away from the root */	942	/* away from the root */
886	void inline_speed	943	inline_speed void
887	downheap (ANHE *heap, int N, int k)	944	downheap (ANHE *heap, int N, int k)
888	{	945	{
889	ANHE he = heap [k];	946	ANHE he = heap [k];
890		947
891	for (;;)	948	for (;;)
…		…
911	ev_active (ANHE_w (he)) = k;	968	ev_active (ANHE_w (he)) = k;
912	}	969	}
913	#endif	970	#endif
914		971
915	/* towards the root */	972	/* towards the root */
916	void inline_speed	973	inline_speed void
917	upheap (ANHE *heap, int k)	974	upheap (ANHE *heap, int k)
918	{	975	{
919	ANHE he = heap [k];	976	ANHE he = heap [k];
920		977
921	for (;;)	978	for (;;)
…		…
932		989
933	heap [k] = he;	990	heap [k] = he;
934	ev_active (ANHE_w (he)) = k;	991	ev_active (ANHE_w (he)) = k;
935	}	992	}
936		993
937	void inline_size	994	inline_size void
938	adjustheap (ANHE *heap, int N, int k)	995	adjustheap (ANHE *heap, int N, int k)
939	{	996	{
940	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]))
941	upheap (heap, k);	998	upheap (heap, k);
942	else	999	else
943	downheap (heap, N, k);	1000	downheap (heap, N, k);
944	}	1001	}
945		1002
946	/* 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 */
947	void inline_size	1004	inline_size void
948	reheap (ANHE *heap, int N)	1005	reheap (ANHE *heap, int N)
949	{	1006	{
950	int i;	1007	int i;
951		1008
952	/* 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 */
…		…
966	static ANSIG *signals;	1023	static ANSIG *signals;
967	static int signalmax;	1024	static int signalmax;
968		1025
969	static EV_ATOMIC_T gotsig;	1026	static EV_ATOMIC_T gotsig;
970		1027
971	void inline_size
972	signals_init (ANSIG *base, int count)
973	{
974	while (count--)
975	{
976	base->head = 0;
977	base->gotsig = 0;
978
979	++base;
980	}
981	}
982
983	/*****************************************************************************/	1028	/*****************************************************************************/
984		1029
985	void inline_speed	1030	inline_speed void
986	fd_intern (int fd)	1031	fd_intern (int fd)
987	{	1032	{
988	#ifdef _WIN32	1033	#ifdef _WIN32
989	unsigned long arg = 1;	1034	unsigned long arg = 1;
990	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1035	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1008	}	1053	}
1009	else	1054	else
1010	#endif	1055	#endif
1011	{	1056	{
1012	while (pipe (evpipe))	1057	while (pipe (evpipe))
1013	syserr ("(libev) error creating signal/async pipe");	1058	ev_syserr ("(libev) error creating signal/async pipe");
1014		1059
1015	fd_intern (evpipe [0]);	1060	fd_intern (evpipe [0]);
1016	fd_intern (evpipe [1]);	1061	fd_intern (evpipe [1]);
1017	ev_io_set (&pipeev, evpipe [0], EV_READ);	1062	ev_io_set (&pipeev, evpipe [0], EV_READ);
1018	}	1063	}
…		…
1020	ev_io_start (EV_A_ &pipeev);	1065	ev_io_start (EV_A_ &pipeev);
1021	ev_unref (EV_A); /* watcher should not keep loop alive */	1066	ev_unref (EV_A); /* watcher should not keep loop alive */
1022	}	1067	}
1023	}	1068	}
1024		1069
1025	void inline_size	1070	inline_size void
1026	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1071	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1027	{	1072	{
1028	if (!*flag)	1073	if (!*flag)
1029	{	1074	{
1030	int old_errno = errno; /* save errno because write might clobber it */	1075	int old_errno = errno; /* save errno because write might clobber it */
…		…
1108	ev_feed_signal_event (EV_P_ int signum)	1153	ev_feed_signal_event (EV_P_ int signum)
1109	{	1154	{
1110	WL w;	1155	WL w;
1111		1156
1112	#if EV_MULTIPLICITY	1157	#if EV_MULTIPLICITY
1113	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));
1114	#endif	1159	#endif
1115		1160
1116	--signum;	1161	--signum;
1117		1162
1118	if (signum < 0 || signum >= signalmax)	1163	if (signum < 0 || signum >= signalmax)
…		…
1134		1179
1135	#ifndef WIFCONTINUED	1180	#ifndef WIFCONTINUED
1136	# define WIFCONTINUED(status) 0	1181	# define WIFCONTINUED(status) 0
1137	#endif	1182	#endif
1138		1183
1139	void inline_speed	1184	inline_speed void
1140	child_reap (EV_P_ int chain, int pid, int status)	1185	child_reap (EV_P_ int chain, int pid, int status)
1141	{	1186	{
1142	ev_child *w;	1187	ev_child *w;
1143	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1188	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1144		1189
…		…
1247	/* kqueue is borked on everything but netbsd apparently */	1292	/* kqueue is borked on everything but netbsd apparently */
1248	/* 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 */
1249	flags &= ~EVBACKEND_KQUEUE;	1294	flags &= ~EVBACKEND_KQUEUE;
1250	#endif	1295	#endif
1251	#ifdef __APPLE__	1296	#ifdef __APPLE__
1252	// flags &= ~EVBACKEND_KQUEUE; for documentation	1297	/* only select works correctly on that "unix-certified" platform */
1253	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 */
1254	#endif	1300	#endif
1255		1301
1256	return flags;	1302	return flags;
1257	}	1303	}
1258		1304
…		…
1295	static void noinline	1341	static void noinline
1296	loop_init (EV_P_ unsigned int flags)	1342	loop_init (EV_P_ unsigned int flags)
1297	{	1343	{
1298	if (!backend)	1344	if (!backend)
1299	{	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
1300	#if EV_USE_MONOTONIC	1356	#if EV_USE_MONOTONIC
		1357	if (!have_monotonic)
1301	{	1358	{
1302	struct timespec ts;	1359	struct timespec ts;
		1360
1303	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1304	have_monotonic = 1;	1362	have_monotonic = 1;
1305	}	1363	}
1306	#endif	1364	#endif
1307		1365
1308	ev_rt_now = ev_time ();	1366	ev_rt_now = ev_time ();
1309	mn_now = get_clock ();	1367	mn_now = get_clock ();
1310	now_floor = mn_now;	1368	now_floor = mn_now;
…		…
1409	}	1467	}
1410		1468
1411	ev_free (anfds); anfdmax = 0;	1469	ev_free (anfds); anfdmax = 0;
1412		1470
1413	/* 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);
1414	array_free (fdchange, EMPTY);	1473	array_free (fdchange, EMPTY);
1415	array_free (timer, EMPTY);	1474	array_free (timer, EMPTY);
1416	#if EV_PERIODIC_ENABLE	1475	#if EV_PERIODIC_ENABLE
1417	array_free (periodic, EMPTY);	1476	array_free (periodic, EMPTY);
1418	#endif	1477	#endif
…		…
1427		1486
1428	backend = 0;	1487	backend = 0;
1429	}	1488	}
1430		1489
1431	#if EV_USE_INOTIFY	1490	#if EV_USE_INOTIFY
1432	void inline_size infy_fork (EV_P);	1491	inline_size void infy_fork (EV_P);
1433	#endif	1492	#endif
1434		1493
1435	void inline_size	1494	inline_size void
1436	loop_fork (EV_P)	1495	loop_fork (EV_P)
1437	{	1496	{
1438	#if EV_USE_PORT	1497	#if EV_USE_PORT
1439	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1498	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1440	#endif	1499	#endif
…		…
1508	{	1567	{
1509	postfork = 1; /* must be in line with ev_default_fork */	1568	postfork = 1; /* must be in line with ev_default_fork */
1510	}	1569	}
1511		1570
1512	#if EV_VERIFY	1571	#if EV_VERIFY
1513	void noinline	1572	static void noinline
1514	verify_watcher (EV_P_ W w)	1573	verify_watcher (EV_P_ W w)
1515	{	1574	{
1516	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1575	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1517		1576
1518	if (w->pending)	1577	if (w->pending)
1519	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));
1520	}	1579	}
1521		1580
1522	static void noinline	1581	static void noinline
1523	verify_heap (EV_P_ ANHE *heap, int N)	1582	verify_heap (EV_P_ ANHE *heap, int N)
1524	{	1583	{
1525	int i;	1584	int i;
1526		1585
1527	for (i = HEAP0; i < N + HEAP0; ++i)	1586	for (i = HEAP0; i < N + HEAP0; ++i)
1528	{	1587	{
1529	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));
1530	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])));
1531	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]))));
1532		1591
1533	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1592	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1534	}	1593	}
1535	}	1594	}
1536		1595
1537	static void noinline	1596	static void noinline
1538	array_verify (EV_P_ W *ws, int cnt)	1597	array_verify (EV_P_ W *ws, int cnt)
1539	{	1598	{
1540	while (cnt--)	1599	while (cnt--)
1541	{	1600	{
1542	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1601	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1543	verify_watcher (EV_A_ ws [cnt]);	1602	verify_watcher (EV_A_ ws [cnt]);
1544	}	1603	}
1545	}	1604	}
1546	#endif	1605	#endif
1547		1606
…		…
1554		1613
1555	assert (activecnt >= -1);	1614	assert (activecnt >= -1);
1556		1615
1557	assert (fdchangemax >= fdchangecnt);	1616	assert (fdchangemax >= fdchangecnt);
1558	for (i = 0; i < fdchangecnt; ++i)	1617	for (i = 0; i < fdchangecnt; ++i)
1559	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1618	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1560		1619
1561	assert (anfdmax >= 0);	1620	assert (anfdmax >= 0);
1562	for (i = 0; i < anfdmax; ++i)	1621	for (i = 0; i < anfdmax; ++i)
1563	for (w = anfds [i].head; w; w = w->next)	1622	for (w = anfds [i].head; w; w = w->next)
1564	{	1623	{
1565	verify_watcher (EV_A_ (W)w);	1624	verify_watcher (EV_A_ (W)w);
1566	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1625	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1567	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));
1568	}	1627	}
1569		1628
1570	assert (timermax >= timercnt);	1629	assert (timermax >= timercnt);
1571	verify_heap (EV_A_ timers, timercnt);	1630	verify_heap (EV_A_ timers, timercnt);
1572		1631
…		…
1649	{	1708	{
1650	#if EV_MULTIPLICITY	1709	#if EV_MULTIPLICITY
1651	struct ev_loop *loop = ev_default_loop_ptr;	1710	struct ev_loop *loop = ev_default_loop_ptr;
1652	#endif	1711	#endif
1653		1712
		1713	ev_default_loop_ptr = 0;
		1714
1654	#ifndef _WIN32	1715	#ifndef _WIN32
1655	ev_ref (EV_A); /* child watcher */	1716	ev_ref (EV_A); /* child watcher */
1656	ev_signal_stop (EV_A_ &childev);	1717	ev_signal_stop (EV_A_ &childev);
1657	#endif	1718	#endif
1658		1719
…		…
1664	{	1725	{
1665	#if EV_MULTIPLICITY	1726	#if EV_MULTIPLICITY
1666	struct ev_loop *loop = ev_default_loop_ptr;	1727	struct ev_loop *loop = ev_default_loop_ptr;
1667	#endif	1728	#endif
1668		1729
1669	if (backend)
1670	postfork = 1; /* must be in line with ev_loop_fork */	1730	postfork = 1; /* must be in line with ev_loop_fork */
1671	}	1731	}
1672		1732
1673	/*****************************************************************************/	1733	/*****************************************************************************/
1674		1734
1675	void	1735	void
1676	ev_invoke (EV_P_ void *w, int revents)	1736	ev_invoke (EV_P_ void *w, int revents)
1677	{	1737	{
1678	EV_CB_INVOKE ((W)w, revents);	1738	EV_CB_INVOKE ((W)w, revents);
1679	}	1739	}
1680		1740
1681	void inline_speed	1741	inline_speed void
1682	call_pending (EV_P)	1742	call_pending (EV_P)
1683	{	1743	{
1684	int pri;	1744	int pri;
1685		1745
1686	for (pri = NUMPRI; pri--; )	1746	for (pri = NUMPRI; pri--; )
…		…
1688	{	1748	{
1689	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1690		1750
1691	if (expect_true (p->w))	1751	if (expect_true (p->w))
1692	{	1752	{
1693	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1753	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1694		1754
1695	p->w->pending = 0;	1755	p->w->pending = 0;
1696	EV_CB_INVOKE (p->w, p->events);	1756	EV_CB_INVOKE (p->w, p->events);
1697	EV_FREQUENT_CHECK;	1757	EV_FREQUENT_CHECK;
1698	}	1758	}
1699	}	1759	}
1700	}	1760	}
1701		1761
1702	#if EV_IDLE_ENABLE	1762	#if EV_IDLE_ENABLE
1703	void inline_size	1763	inline_size void
1704	idle_reify (EV_P)	1764	idle_reify (EV_P)
1705	{	1765	{
1706	if (expect_false (idleall))	1766	if (expect_false (idleall))
1707	{	1767	{
1708	int pri;	1768	int pri;
…		…
1720	}	1780	}
1721	}	1781	}
1722	}	1782	}
1723	#endif	1783	#endif
1724		1784
1725	void inline_size	1785	inline_size void
1726	timers_reify (EV_P)	1786	timers_reify (EV_P)
1727	{	1787	{
1728	EV_FREQUENT_CHECK;	1788	EV_FREQUENT_CHECK;
1729		1789
1730	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1790	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1731	{	1791	{
1732	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1792	do
1733
1734	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1735
1736	/* first reschedule or stop timer */
1737	if (w->repeat)
1738	{	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	{
1739	ev_at (w) += w->repeat;	1801	ev_at (w) += w->repeat;
1740	if (ev_at (w) < mn_now)	1802	if (ev_at (w) < mn_now)
1741	ev_at (w) = mn_now;	1803	ev_at (w) = mn_now;
1742		1804
1743	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.));
1744		1806
1745	ANHE_at_cache (timers [HEAP0]);	1807	ANHE_at_cache (timers [HEAP0]);
1746	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);
1747	}	1815	}
1748	else	1816	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1749	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1750		1817
1751	EV_FREQUENT_CHECK;
1752	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1818	feed_reverse_done (EV_A_ EV_TIMEOUT);
1753	}	1819	}
1754	}	1820	}
1755		1821
1756	#if EV_PERIODIC_ENABLE	1822	#if EV_PERIODIC_ENABLE
1757	void inline_size	1823	inline_size void
1758	periodics_reify (EV_P)	1824	periodics_reify (EV_P)
1759	{	1825	{
1760	EV_FREQUENT_CHECK;	1826	EV_FREQUENT_CHECK;
1761		1827
1762	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1828	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1763	{	1829	{
1764	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1830	int feed_count = 0;
1765		1831
1766	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1832	do
1767
1768	/* first reschedule or stop timer */
1769	if (w->reschedule_cb)
1770	{	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	{
1771	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1841	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1772		1842
1773	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));
1774		1844
1775	ANHE_at_cache (periodics [HEAP0]);	1845	ANHE_at_cache (periodics [HEAP0]);
1776	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);
1777	}	1872	}
1778	else if (w->interval)	1873	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1779	{
1780	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1781	/* if next trigger time is not sufficiently in the future, put it there */
1782	/* this might happen because of floating point inexactness */
1783	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1784	{
1785	ev_at (w) += w->interval;
1786		1874
1787	/* if interval is unreasonably low we might still have a time in the past */
1788	/* so correct this. this will make the periodic very inexact, but the user */
1789	/* has effectively asked to get triggered more often than possible */
1790	if (ev_at (w) < ev_rt_now)
1791	ev_at (w) = ev_rt_now;
1792	}
1793
1794	ANHE_at_cache (periodics [HEAP0]);
1795	downheap (periodics, periodiccnt, HEAP0);
1796	}
1797	else
1798	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1799
1800	EV_FREQUENT_CHECK;
1801	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1875	feed_reverse_done (EV_A_ EV_PERIODIC);
1802	}	1876	}
1803	}	1877	}
1804		1878
1805	static void noinline	1879	static void noinline
1806	periodics_reschedule (EV_P)	1880	periodics_reschedule (EV_P)
…		…
1822		1896
1823	reheap (periodics, periodiccnt);	1897	reheap (periodics, periodiccnt);
1824	}	1898	}
1825	#endif	1899	#endif
1826		1900
1827	void inline_speed	1901	inline_speed void
1828	time_update (EV_P_ ev_tstamp max_block)	1902	time_update (EV_P_ ev_tstamp max_block)
1829	{	1903	{
1830	int i;	1904	int i;
1831		1905
1832	#if EV_USE_MONOTONIC	1906	#if EV_USE_MONOTONIC
…		…
1906	ev_unref (EV_P)	1980	ev_unref (EV_P)
1907	{	1981	{
1908	--activecnt;	1982	--activecnt;
1909	}	1983	}
1910		1984
		1985	void
		1986	ev_now_update (EV_P)
		1987	{
		1988	time_update (EV_A_ 1e100);
		1989	}
		1990
1911	static int loop_done;	1991	static int loop_done;
1912		1992
1913	void	1993	void
1914	ev_loop (EV_P_ int flags)	1994	ev_loop (EV_P_ int flags)
1915	{	1995	{
…		…
1947	{	2027	{
1948	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2028	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1949	call_pending (EV_A);	2029	call_pending (EV_A);
1950	}	2030	}
1951		2031
1952	if (expect_false (!activecnt))
1953	break;
1954
1955	/* we might have forked, so reify kernel state if necessary */	2032	/* we might have forked, so reify kernel state if necessary */
1956	if (expect_false (postfork))	2033	if (expect_false (postfork))
1957	loop_fork (EV_A);	2034	loop_fork (EV_A);
1958		2035
1959	/* update fd-related kernel structures */	2036	/* update fd-related kernel structures */
…		…
1966		2043
1967	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2044	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1968	{	2045	{
1969	/* update time to cancel out callback processing overhead */	2046	/* update time to cancel out callback processing overhead */
1970	time_update (EV_A_ 1e100);	2047	time_update (EV_A_ 1e100);
1971
1972	waittime = MAX_BLOCKTIME;
1973		2048
1974	if (timercnt)	2049	if (timercnt)
1975	{	2050	{
1976	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2051	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1977	if (waittime > to) waittime = to;	2052	if (waittime > to) waittime = to;
…		…
2040	loop_done = how;	2115	loop_done = how;
2041	}	2116	}
2042		2117
2043	/*****************************************************************************/	2118	/*****************************************************************************/
2044		2119
2045	void inline_size	2120	inline_size void
2046	wlist_add (WL *head, WL elem)	2121	wlist_add (WL *head, WL elem)
2047	{	2122	{
2048	elem->next = *head;	2123	elem->next = *head;
2049	*head = elem;	2124	*head = elem;
2050	}	2125	}
2051		2126
2052	void inline_size	2127	inline_size void
2053	wlist_del (WL *head, WL elem)	2128	wlist_del (WL *head, WL elem)
2054	{	2129	{
2055	while (*head)	2130	while (*head)
2056	{	2131	{
2057	if (*head == elem)	2132	if (*head == elem)
…		…
2062		2137
2063	head = &(*head)->next;	2138	head = &(*head)->next;
2064	}	2139	}
2065	}	2140	}
2066		2141
2067	void inline_speed	2142	inline_speed void
2068	clear_pending (EV_P_ W w)	2143	clear_pending (EV_P_ W w)
2069	{	2144	{
2070	if (w->pending)	2145	if (w->pending)
2071	{	2146	{
2072	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2147	pendings [ABSPRI (w)][w->pending - 1].w = 0;
…		…
2089	}	2164	}
2090	else	2165	else
2091	return 0;	2166	return 0;
2092	}	2167	}
2093		2168
2094	void inline_size	2169	inline_size void
2095	pri_adjust (EV_P_ W w)	2170	pri_adjust (EV_P_ W w)
2096	{	2171	{
2097	int pri = w->priority;	2172	int pri = w->priority;
2098	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2173	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2099	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2174	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2100	w->priority = pri;	2175	w->priority = pri;
2101	}	2176	}
2102		2177
2103	void inline_speed	2178	inline_speed void
2104	ev_start (EV_P_ W w, int active)	2179	ev_start (EV_P_ W w, int active)
2105	{	2180	{
2106	pri_adjust (EV_A_ w);	2181	pri_adjust (EV_A_ w);
2107	w->active = active;	2182	w->active = active;
2108	ev_ref (EV_A);	2183	ev_ref (EV_A);
2109	}	2184	}
2110		2185
2111	void inline_size	2186	inline_size void
2112	ev_stop (EV_P_ W w)	2187	ev_stop (EV_P_ W w)
2113	{	2188	{
2114	ev_unref (EV_A);	2189	ev_unref (EV_A);
2115	w->active = 0;	2190	w->active = 0;
2116	}	2191	}
…		…
2123	int fd = w->fd;	2198	int fd = w->fd;
2124		2199
2125	if (expect_false (ev_is_active (w)))	2200	if (expect_false (ev_is_active (w)))
2126	return;	2201	return;
2127		2202
2128	assert (("ev_io_start called with negative fd", fd >= 0));	2203	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2204	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2129		2205
2130	EV_FREQUENT_CHECK;	2206	EV_FREQUENT_CHECK;
2131		2207
2132	ev_start (EV_A_ (W)w, 1);	2208	ev_start (EV_A_ (W)w, 1);
2133	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2209	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2134	wlist_add (&anfds[fd].head, (WL)w);	2210	wlist_add (&anfds[fd].head, (WL)w);
2135		2211
2136	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2212	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2137	w->events &= ~EV_IOFDSET;	2213	w->events &= ~EV__IOFDSET;
2138		2214
2139	EV_FREQUENT_CHECK;	2215	EV_FREQUENT_CHECK;
2140	}	2216	}
2141		2217
2142	void noinline	2218	void noinline
…		…
2144	{	2220	{
2145	clear_pending (EV_A_ (W)w);	2221	clear_pending (EV_A_ (W)w);
2146	if (expect_false (!ev_is_active (w)))	2222	if (expect_false (!ev_is_active (w)))
2147	return;	2223	return;
2148		2224
2149	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2225	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2150		2226
2151	EV_FREQUENT_CHECK;	2227	EV_FREQUENT_CHECK;
2152		2228
2153	wlist_del (&anfds[w->fd].head, (WL)w);	2229	wlist_del (&anfds[w->fd].head, (WL)w);
2154	ev_stop (EV_A_ (W)w);	2230	ev_stop (EV_A_ (W)w);
…		…
2164	if (expect_false (ev_is_active (w)))	2240	if (expect_false (ev_is_active (w)))
2165	return;	2241	return;
2166		2242
2167	ev_at (w) += mn_now;	2243	ev_at (w) += mn_now;
2168		2244
2169	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2245	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2170		2246
2171	EV_FREQUENT_CHECK;	2247	EV_FREQUENT_CHECK;
2172		2248
2173	++timercnt;	2249	++timercnt;
2174	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2250	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2177	ANHE_at_cache (timers [ev_active (w)]);	2253	ANHE_at_cache (timers [ev_active (w)]);
2178	upheap (timers, ev_active (w));	2254	upheap (timers, ev_active (w));
2179		2255
2180	EV_FREQUENT_CHECK;	2256	EV_FREQUENT_CHECK;
2181		2257
2182	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2258	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2183	}	2259	}
2184		2260
2185	void noinline	2261	void noinline
2186	ev_timer_stop (EV_P_ ev_timer *w)	2262	ev_timer_stop (EV_P_ ev_timer *w)
2187	{	2263	{
…		…
2192	EV_FREQUENT_CHECK;	2268	EV_FREQUENT_CHECK;
2193		2269
2194	{	2270	{
2195	int active = ev_active (w);	2271	int active = ev_active (w);
2196		2272
2197	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2273	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2198		2274
2199	--timercnt;	2275	--timercnt;
2200		2276
2201	if (expect_true (active < timercnt + HEAP0))	2277	if (expect_true (active < timercnt + HEAP0))
2202	{	2278	{
…		…
2246		2322
2247	if (w->reschedule_cb)	2323	if (w->reschedule_cb)
2248	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2324	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2249	else if (w->interval)	2325	else if (w->interval)
2250	{	2326	{
2251	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2327	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2252	/* this formula differs from the one in periodic_reify because we do not always round up */	2328	/* this formula differs from the one in periodic_reify because we do not always round up */
2253	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2329	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2254	}	2330	}
2255	else	2331	else
2256	ev_at (w) = w->offset;	2332	ev_at (w) = w->offset;
…		…
2264	ANHE_at_cache (periodics [ev_active (w)]);	2340	ANHE_at_cache (periodics [ev_active (w)]);
2265	upheap (periodics, ev_active (w));	2341	upheap (periodics, ev_active (w));
2266		2342
2267	EV_FREQUENT_CHECK;	2343	EV_FREQUENT_CHECK;
2268		2344
2269	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2345	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2270	}	2346	}
2271		2347
2272	void noinline	2348	void noinline
2273	ev_periodic_stop (EV_P_ ev_periodic *w)	2349	ev_periodic_stop (EV_P_ ev_periodic *w)
2274	{	2350	{
…		…
2279	EV_FREQUENT_CHECK;	2355	EV_FREQUENT_CHECK;
2280		2356
2281	{	2357	{
2282	int active = ev_active (w);	2358	int active = ev_active (w);
2283		2359
2284	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2360	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2285		2361
2286	--periodiccnt;	2362	--periodiccnt;
2287		2363
2288	if (expect_true (active < periodiccnt + HEAP0))	2364	if (expect_true (active < periodiccnt + HEAP0))
2289	{	2365	{
…		…
2312		2388
2313	void noinline	2389	void noinline
2314	ev_signal_start (EV_P_ ev_signal *w)	2390	ev_signal_start (EV_P_ ev_signal *w)
2315	{	2391	{
2316	#if EV_MULTIPLICITY	2392	#if EV_MULTIPLICITY
2317	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2393	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2318	#endif	2394	#endif
2319	if (expect_false (ev_is_active (w)))	2395	if (expect_false (ev_is_active (w)))
2320	return;	2396	return;
2321		2397
2322	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2398	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2323		2399
2324	evpipe_init (EV_A);	2400	evpipe_init (EV_A);
2325		2401
2326	EV_FREQUENT_CHECK;	2402	EV_FREQUENT_CHECK;
2327		2403
…		…
2330	sigset_t full, prev;	2406	sigset_t full, prev;
2331	sigfillset (&full);	2407	sigfillset (&full);
2332	sigprocmask (SIG_SETMASK, &full, &prev);	2408	sigprocmask (SIG_SETMASK, &full, &prev);
2333	#endif	2409	#endif
2334		2410
2335	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2411	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2336		2412
2337	#ifndef _WIN32	2413	#ifndef _WIN32
2338	sigprocmask (SIG_SETMASK, &prev, 0);	2414	sigprocmask (SIG_SETMASK, &prev, 0);
2339	#endif	2415	#endif
2340	}	2416	}
…		…
2378		2454
2379	void	2455	void
2380	ev_child_start (EV_P_ ev_child *w)	2456	ev_child_start (EV_P_ ev_child *w)
2381	{	2457	{
2382	#if EV_MULTIPLICITY	2458	#if EV_MULTIPLICITY
2383	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2459	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2384	#endif	2460	#endif
2385	if (expect_false (ev_is_active (w)))	2461	if (expect_false (ev_is_active (w)))
2386	return;	2462	return;
2387		2463
2388	EV_FREQUENT_CHECK;	2464	EV_FREQUENT_CHECK;
…		…
2413	# ifdef _WIN32	2489	# ifdef _WIN32
2414	# undef lstat	2490	# undef lstat
2415	# define lstat(a,b) _stati64 (a,b)	2491	# define lstat(a,b) _stati64 (a,b)
2416	# endif	2492	# endif
2417		2493
2418	#define DEF_STAT_INTERVAL 5.0074891	2494	#define DEF_STAT_INTERVAL 5.0074891
		2495	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2419	#define MIN_STAT_INTERVAL 0.1074891	2496	#define MIN_STAT_INTERVAL 0.1074891
2420		2497
2421	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2498	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2422		2499
2423	#if EV_USE_INOTIFY	2500	#if EV_USE_INOTIFY
2424	# define EV_INOTIFY_BUFSIZE 8192	2501	# define EV_INOTIFY_BUFSIZE 8192
…		…
2428	{	2505	{
2429	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);	2506	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);
2430		2507
2431	if (w->wd < 0)	2508	if (w->wd < 0)
2432	{	2509	{
		2510	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2433	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2511	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2434		2512
2435	/* monitor some parent directory for speedup hints */	2513	/* monitor some parent directory for speedup hints */
2436	/* note that exceeding the hardcoded limit is not a correctness issue, */	2514	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2437	/* but an efficiency issue only */	2515	/* but an efficiency issue only */
2438	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2516	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2439	{	2517	{
2440	char path [4096];	2518	char path [4096];
2441	strcpy (path, w->path);	2519	strcpy (path, w->path);
…		…
2445	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2523	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2446	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2524	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2447		2525
2448	char *pend = strrchr (path, '/');	2526	char *pend = strrchr (path, '/');
2449		2527
2450	if (!pend)	2528	if (!pend || pend == path)
2451	break; /* whoops, no '/', complain to your admin */	2529	break;
2452		2530
2453	*pend = 0;	2531	*pend = 0;
2454	w->wd = inotify_add_watch (fs_fd, path, mask);	2532	w->wd = inotify_add_watch (fs_fd, path, mask);
2455	}	2533	}
2456	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2534	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2457	}	2535	}
2458	}	2536	}
2459	else
2460	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2461		2537
2462	if (w->wd >= 0)	2538	if (w->wd >= 0)
		2539	{
2463	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2540	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2541
		2542	/* now local changes will be tracked by inotify, but remote changes won't */
		2543	/* unless the filesystem it known to be local, we therefore still poll */
		2544	/* also do poll on <2.6.25, but with normal frequency */
		2545	struct statfs sfs;
		2546
		2547	if (fs_2625 && !statfs (w->path, &sfs))
		2548	if (sfs.f_type == 0x1373 /* devfs */
		2549	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2550	|| sfs.f_type == 0x3153464a /* jfs */
		2551	|| sfs.f_type == 0x52654973 /* reiser3 */
		2552	|| sfs.f_type == 0x01021994 /* tempfs */
		2553	|| sfs.f_type == 0x58465342 /* xfs */)
		2554	return;
		2555
		2556	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2557	ev_timer_again (EV_A_ &w->timer);
		2558	}
2464	}	2559	}
2465		2560
2466	static void noinline	2561	static void noinline
2467	infy_del (EV_P_ ev_stat *w)	2562	infy_del (EV_P_ ev_stat *w)
2468	{	2563	{
…		…
2482		2577
2483	static void noinline	2578	static void noinline
2484	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2579	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2485	{	2580	{
2486	if (slot < 0)	2581	if (slot < 0)
2487	/* overflow, need to check for all hahs slots */	2582	/* overflow, need to check for all hash slots */
2488	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2583	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2489	infy_wd (EV_A_ slot, wd, ev);	2584	infy_wd (EV_A_ slot, wd, ev);
2490	else	2585	else
2491	{	2586	{
2492	WL w_;	2587	WL w_;
…		…
2498		2593
2499	if (w->wd == wd || wd == -1)	2594	if (w->wd == wd || wd == -1)
2500	{	2595	{
2501	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2596	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2502	{	2597	{
		2598	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2503	w->wd = -1;	2599	w->wd = -1;
2504	infy_add (EV_A_ w); /* re-add, no matter what */	2600	infy_add (EV_A_ w); /* re-add, no matter what */
2505	}	2601	}
2506		2602
2507	stat_timer_cb (EV_A_ &w->timer, 0);	2603	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2520		2616
2521	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2617	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2522	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2618	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2523	}	2619	}
2524		2620
2525	void inline_size	2621	inline_size void
		2622	check_2625 (EV_P)
		2623	{
		2624	/* kernels < 2.6.25 are borked
		2625	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2626	*/
		2627	struct utsname buf;
		2628	int major, minor, micro;
		2629
		2630	if (uname (&buf))
		2631	return;
		2632
		2633	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2634	return;
		2635
		2636	if (major < 2
		2637	|| (major == 2 && minor < 6)
		2638	|| (major == 2 && minor == 6 && micro < 25))
		2639	return;
		2640
		2641	fs_2625 = 1;
		2642	}
		2643
		2644	inline_size void
2526	infy_init (EV_P)	2645	infy_init (EV_P)
2527	{	2646	{
2528	if (fs_fd != -2)	2647	if (fs_fd != -2)
2529	return;	2648	return;
		2649
		2650	fs_fd = -1;
		2651
		2652	check_2625 (EV_A);
2530		2653
2531	fs_fd = inotify_init ();	2654	fs_fd = inotify_init ();
2532		2655
2533	if (fs_fd >= 0)	2656	if (fs_fd >= 0)
2534	{	2657	{
…		…
2536	ev_set_priority (&fs_w, EV_MAXPRI);	2659	ev_set_priority (&fs_w, EV_MAXPRI);
2537	ev_io_start (EV_A_ &fs_w);	2660	ev_io_start (EV_A_ &fs_w);
2538	}	2661	}
2539	}	2662	}
2540		2663
2541	void inline_size	2664	inline_size void
2542	infy_fork (EV_P)	2665	infy_fork (EV_P)
2543	{	2666	{
2544	int slot;	2667	int slot;
2545		2668
2546	if (fs_fd < 0)	2669	if (fs_fd < 0)
…		…
2562	w->wd = -1;	2685	w->wd = -1;
2563		2686
2564	if (fs_fd >= 0)	2687	if (fs_fd >= 0)
2565	infy_add (EV_A_ w); /* re-add, no matter what */	2688	infy_add (EV_A_ w); /* re-add, no matter what */
2566	else	2689	else
2567	ev_timer_start (EV_A_ &w->timer);	2690	ev_timer_again (EV_A_ &w->timer);
2568	}	2691	}
2569
2570	}	2692	}
2571	}	2693	}
2572		2694
2573	#endif	2695	#endif
2574		2696
…		…
2610	|| w->prev.st_atime != w->attr.st_atime	2732	|| w->prev.st_atime != w->attr.st_atime
2611	|| w->prev.st_mtime != w->attr.st_mtime	2733	|| w->prev.st_mtime != w->attr.st_mtime
2612	|| w->prev.st_ctime != w->attr.st_ctime	2734	|| w->prev.st_ctime != w->attr.st_ctime
2613	) {	2735	) {
2614	#if EV_USE_INOTIFY	2736	#if EV_USE_INOTIFY
		2737	if (fs_fd >= 0)
		2738	{
2615	infy_del (EV_A_ w);	2739	infy_del (EV_A_ w);
2616	infy_add (EV_A_ w);	2740	infy_add (EV_A_ w);
2617	ev_stat_stat (EV_A_ w); /* avoid race... */	2741	ev_stat_stat (EV_A_ w); /* avoid race... */
		2742	}
2618	#endif	2743	#endif
2619		2744
2620	ev_feed_event (EV_A_ w, EV_STAT);	2745	ev_feed_event (EV_A_ w, EV_STAT);
2621	}	2746	}
2622	}	2747	}
…		…
2625	ev_stat_start (EV_P_ ev_stat *w)	2750	ev_stat_start (EV_P_ ev_stat *w)
2626	{	2751	{
2627	if (expect_false (ev_is_active (w)))	2752	if (expect_false (ev_is_active (w)))
2628	return;	2753	return;
2629		2754
2630	/* since we use memcmp, we need to clear any padding data etc. */
2631	memset (&w->prev, 0, sizeof (ev_statdata));
2632	memset (&w->attr, 0, sizeof (ev_statdata));
2633
2634	ev_stat_stat (EV_A_ w);	2755	ev_stat_stat (EV_A_ w);
2635		2756
		2757	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2636	if (w->interval < MIN_STAT_INTERVAL)	2758	w->interval = MIN_STAT_INTERVAL;
2637	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2638		2759
2639	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2760	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2640	ev_set_priority (&w->timer, ev_priority (w));	2761	ev_set_priority (&w->timer, ev_priority (w));
2641		2762
2642	#if EV_USE_INOTIFY	2763	#if EV_USE_INOTIFY
2643	infy_init (EV_A);	2764	infy_init (EV_A);
2644		2765
2645	if (fs_fd >= 0)	2766	if (fs_fd >= 0)
2646	infy_add (EV_A_ w);	2767	infy_add (EV_A_ w);
2647	else	2768	else
2648	#endif	2769	#endif
2649	ev_timer_start (EV_A_ &w->timer);	2770	ev_timer_again (EV_A_ &w->timer);
2650		2771
2651	ev_start (EV_A_ (W)w, 1);	2772	ev_start (EV_A_ (W)w, 1);
2652		2773
2653	EV_FREQUENT_CHECK;	2774	EV_FREQUENT_CHECK;
2654	}	2775	}
…		…
2824	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2945	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2825	}	2946	}
2826	}	2947	}
2827	}	2948	}
2828		2949
		2950	static void
		2951	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2952	{
		2953	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		2954
		2955	ev_embed_stop (EV_A_ w);
		2956
		2957	{
		2958	struct ev_loop *loop = w->other;
		2959
		2960	ev_loop_fork (EV_A);
		2961	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2962	}
		2963
		2964	ev_embed_start (EV_A_ w);
		2965	}
		2966
2829	#if 0	2967	#if 0
2830	static void	2968	static void
2831	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2969	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2832	{	2970	{
2833	ev_idle_stop (EV_A_ idle);	2971	ev_idle_stop (EV_A_ idle);
…		…
2840	if (expect_false (ev_is_active (w)))	2978	if (expect_false (ev_is_active (w)))
2841	return;	2979	return;
2842		2980
2843	{	2981	{
2844	struct ev_loop *loop = w->other;	2982	struct ev_loop *loop = w->other;
2845	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2983	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2846	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2984	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2847	}	2985	}
2848		2986
2849	EV_FREQUENT_CHECK;	2987	EV_FREQUENT_CHECK;
2850		2988
…		…
2853		2991
2854	ev_prepare_init (&w->prepare, embed_prepare_cb);	2992	ev_prepare_init (&w->prepare, embed_prepare_cb);
2855	ev_set_priority (&w->prepare, EV_MINPRI);	2993	ev_set_priority (&w->prepare, EV_MINPRI);
2856	ev_prepare_start (EV_A_ &w->prepare);	2994	ev_prepare_start (EV_A_ &w->prepare);
2857		2995
		2996	ev_fork_init (&w->fork, embed_fork_cb);
		2997	ev_fork_start (EV_A_ &w->fork);
		2998
2858	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	2999	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2859		3000
2860	ev_start (EV_A_ (W)w, 1);	3001	ev_start (EV_A_ (W)w, 1);
2861		3002
2862	EV_FREQUENT_CHECK;	3003	EV_FREQUENT_CHECK;
…		…
2869	if (expect_false (!ev_is_active (w)))	3010	if (expect_false (!ev_is_active (w)))
2870	return;	3011	return;
2871		3012
2872	EV_FREQUENT_CHECK;	3013	EV_FREQUENT_CHECK;
2873		3014
2874	ev_io_stop (EV_A_ &w->io);	3015	ev_io_stop (EV_A_ &w->io);
2875	ev_prepare_stop (EV_A_ &w->prepare);	3016	ev_prepare_stop (EV_A_ &w->prepare);
2876		3017	ev_fork_stop (EV_A_ &w->fork);
2877	ev_stop (EV_A_ (W)w);
2878		3018
2879	EV_FREQUENT_CHECK;	3019	EV_FREQUENT_CHECK;
2880	}	3020	}
2881	#endif	3021	#endif
2882		3022
…		…
2979	once_cb (EV_P_ struct ev_once *once, int revents)	3119	once_cb (EV_P_ struct ev_once *once, int revents)
2980	{	3120	{
2981	void (*cb)(int revents, void *arg) = once->cb;	3121	void (*cb)(int revents, void *arg) = once->cb;
2982	void *arg = once->arg;	3122	void *arg = once->arg;
2983		3123
2984	ev_io_stop (EV_A_ &once->io);	3124	ev_io_stop (EV_A_ &once->io);
2985	ev_timer_stop (EV_A_ &once->to);	3125	ev_timer_stop (EV_A_ &once->to);
2986	ev_free (once);	3126	ev_free (once);
2987		3127
2988	cb (revents, arg);	3128	cb (revents, arg);
2989	}	3129	}
2990		3130
2991	static void	3131	static void
2992	once_cb_io (EV_P_ ev_io *w, int revents)	3132	once_cb_io (EV_P_ ev_io *w, int revents)
2993	{	3133	{
2994	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3134	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3135
		3136	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2995	}	3137	}
2996		3138
2997	static void	3139	static void
2998	once_cb_to (EV_P_ ev_timer *w, int revents)	3140	once_cb_to (EV_P_ ev_timer *w, int revents)
2999	{	3141	{
3000	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3142	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3143
		3144	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3001	}	3145	}
3002		3146
3003	void	3147	void
3004	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3148	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
3005	{	3149	{
…		…
3027	ev_timer_set (&once->to, timeout, 0.);	3171	ev_timer_set (&once->to, timeout, 0.);
3028	ev_timer_start (EV_A_ &once->to);	3172	ev_timer_start (EV_A_ &once->to);
3029	}	3173	}
3030	}	3174	}
3031		3175
		3176	/*****************************************************************************/
		3177
		3178	#if 0
		3179	void
		3180	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3181	{
		3182	int i, j;
		3183	ev_watcher_list *wl, *wn;
		3184
		3185	if (types & (EV_IO | EV_EMBED))
		3186	for (i = 0; i < anfdmax; ++i)
		3187	for (wl = anfds [i].head; wl; )
		3188	{
		3189	wn = wl->next;
		3190
		3191	#if EV_EMBED_ENABLE
		3192	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3193	{
		3194	if (types & EV_EMBED)
		3195	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3196	}
		3197	else
		3198	#endif
		3199	#if EV_USE_INOTIFY
		3200	if (ev_cb ((ev_io *)wl) == infy_cb)
		3201	;
		3202	else
		3203	#endif
		3204	if ((ev_io *)wl != &pipeev)
		3205	if (types & EV_IO)
		3206	cb (EV_A_ EV_IO, wl);
		3207
		3208	wl = wn;
		3209	}
		3210
		3211	if (types & (EV_TIMER | EV_STAT))
		3212	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3213	#if EV_STAT_ENABLE
		3214	/*TODO: timer is not always active*/
		3215	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3216	{
		3217	if (types & EV_STAT)
		3218	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3219	}
		3220	else
		3221	#endif
		3222	if (types & EV_TIMER)
		3223	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3224
		3225	#if EV_PERIODIC_ENABLE
		3226	if (types & EV_PERIODIC)
		3227	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3228	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3229	#endif
		3230
		3231	#if EV_IDLE_ENABLE
		3232	if (types & EV_IDLE)
		3233	for (j = NUMPRI; i--; )
		3234	for (i = idlecnt [j]; i--; )
		3235	cb (EV_A_ EV_IDLE, idles [j][i]);
		3236	#endif
		3237
		3238	#if EV_FORK_ENABLE
		3239	if (types & EV_FORK)
		3240	for (i = forkcnt; i--; )
		3241	if (ev_cb (forks [i]) != embed_fork_cb)
		3242	cb (EV_A_ EV_FORK, forks [i]);
		3243	#endif
		3244
		3245	#if EV_ASYNC_ENABLE
		3246	if (types & EV_ASYNC)
		3247	for (i = asynccnt; i--; )
		3248	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3249	#endif
		3250
		3251	if (types & EV_PREPARE)
		3252	for (i = preparecnt; i--; )
		3253	#if EV_EMBED_ENABLE
		3254	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3255	#endif
		3256	cb (EV_A_ EV_PREPARE, prepares [i]);
		3257
		3258	if (types & EV_CHECK)
		3259	for (i = checkcnt; i--; )
		3260	cb (EV_A_ EV_CHECK, checks [i]);
		3261
		3262	if (types & EV_SIGNAL)
		3263	for (i = 0; i < signalmax; ++i)
		3264	for (wl = signals [i].head; wl; )
		3265	{
		3266	wn = wl->next;
		3267	cb (EV_A_ EV_SIGNAL, wl);
		3268	wl = wn;
		3269	}
		3270
		3271	if (types & EV_CHILD)
		3272	for (i = EV_PID_HASHSIZE; i--; )
		3273	for (wl = childs [i]; wl; )
		3274	{
		3275	wn = wl->next;
		3276	cb (EV_A_ EV_CHILD, wl);
		3277	wl = wn;
		3278	}
		3279	/* EV_STAT 0x00001000 /* stat data changed */
		3280	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3281	}
		3282	#endif
		3283
3032	#if EV_MULTIPLICITY	3284	#if EV_MULTIPLICITY
3033	#include "ev_wrap.h"	3285	#include "ev_wrap.h"
3034	#endif	3286	#endif
3035		3287
3036	#ifdef __cplusplus	3288	#ifdef __cplusplus

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