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Comparing libev/ev.c (file contents):
Revision 1.251 by root, Thu May 22 03:42:34 2008 UTC vs.
Revision 1.290 by root, Mon Jun 29 04:41:34 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	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
		64	# endif
		65
52	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
55	# endif	69	# endif
56	# ifndef EV_USE_REALTIME	70	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	71	# define EV_USE_REALTIME 0
58	# endif	72	# endif
59	# else	73	# else
60	# ifndef EV_USE_MONOTONIC	74	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	75	# define EV_USE_MONOTONIC 0
62	# endif	76	# endif
…		…
154	#ifndef _WIN32	168	#ifndef _WIN32
155	# include <sys/time.h>	169	# include <sys/time.h>
156	# include <sys/wait.h>	170	# include <sys/wait.h>
157	# include <unistd.h>	171	# include <unistd.h>
158	#else	172	#else
		173	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	174	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	175	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	176	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	177	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	178	# endif
164	#endif	179	#endif
165		180
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	181	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		182
		183	#ifndef EV_USE_CLOCK_SYSCALL
		184	# if __linux && __GLIBC__ >= 2
		185	# define EV_USE_CLOCK_SYSCALL 1
		186	# else
		187	# define EV_USE_CLOCK_SYSCALL 0
		188	# endif
		189	#endif
		190
168	#ifndef EV_USE_MONOTONIC	191	#ifndef EV_USE_MONOTONIC
		192	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		193	# define EV_USE_MONOTONIC 1
		194	# else
169	# define EV_USE_MONOTONIC 0	195	# define EV_USE_MONOTONIC 0
		196	# endif
170	#endif	197	#endif
171		198
172	#ifndef EV_USE_REALTIME	199	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	200	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174	#endif	201	#endif
175		202
176	#ifndef EV_USE_NANOSLEEP	203	#ifndef EV_USE_NANOSLEEP
		204	# if _POSIX_C_SOURCE >= 199309L
		205	# define EV_USE_NANOSLEEP 1
		206	# else
177	# define EV_USE_NANOSLEEP 0	207	# define EV_USE_NANOSLEEP 0
		208	# endif
178	#endif	209	#endif
179		210
180	#ifndef EV_USE_SELECT	211	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	212	# define EV_USE_SELECT 1
182	#endif	213	#endif
…		…
277	# include <sys/select.h>	308	# include <sys/select.h>
278	# endif	309	# endif
279	#endif	310	#endif
280		311
281	#if EV_USE_INOTIFY	312	#if EV_USE_INOTIFY
		313	# include <sys/utsname.h>
		314	# include <sys/statfs.h>
282	# include <sys/inotify.h>	315	# include <sys/inotify.h>
		316	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		317	# ifndef IN_DONT_FOLLOW
		318	# undef EV_USE_INOTIFY
		319	# define EV_USE_INOTIFY 0
		320	# endif
283	#endif	321	#endif
284		322
285	#if EV_SELECT_IS_WINSOCKET	323	#if EV_SELECT_IS_WINSOCKET
286	# include <winsock.h>	324	# include <winsock.h>
		325	#endif
		326
		327	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		328	/* which makes programs even slower. might work on other unices, too. */
		329	#if EV_USE_CLOCK_SYSCALL
		330	# include <syscall.h>
		331	# ifdef SYS_clock_gettime
		332	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		333	# undef EV_USE_MONOTONIC
		334	# define EV_USE_MONOTONIC 1
		335	# else
		336	# undef EV_USE_CLOCK_SYSCALL
		337	# define EV_USE_CLOCK_SYSCALL 0
		338	# endif
287	#endif	339	#endif
288		340
289	#if EV_USE_EVENTFD	341	#if EV_USE_EVENTFD
290	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
291	# include <stdint.h>	343	# include <stdint.h>
…		…
352	typedef ev_watcher_time *WT;	404	typedef ev_watcher_time *WT;
353		405
354	#define ev_active(w) ((W)(w))->active	406	#define ev_active(w) ((W)(w))->active
355	#define ev_at(w) ((WT)(w))->at	407	#define ev_at(w) ((WT)(w))->at
356		408
357	#if EV_USE_MONOTONIC	409	#if EV_USE_REALTIME
358	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	410	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
359	/* giving it a reasonably high chance of working on typical architetcures */	411	/* giving it a reasonably high chance of working on typical architetcures */
		412	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		413	#endif
		414
		415	#if EV_USE_MONOTONIC
360	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	416	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
361	#endif	417	#endif
362		418
363	#ifdef _WIN32	419	#ifdef _WIN32
364	# include "ev_win32.c"	420	# include "ev_win32.c"
…		…
373	{	429	{
374	syserr_cb = cb;	430	syserr_cb = cb;
375	}	431	}
376		432
377	static void noinline	433	static void noinline
378	syserr (const char *msg)	434	ev_syserr (const char *msg)
379	{	435	{
380	if (!msg)	436	if (!msg)
381	msg = "(libev) system error";	437	msg = "(libev) system error";
382		438
383	if (syserr_cb)	439	if (syserr_cb)
…		…
429	#define ev_malloc(size) ev_realloc (0, (size))	485	#define ev_malloc(size) ev_realloc (0, (size))
430	#define ev_free(ptr) ev_realloc ((ptr), 0)	486	#define ev_free(ptr) ev_realloc ((ptr), 0)
431		487
432	/*****************************************************************************/	488	/*****************************************************************************/
433		489
		490	/* file descriptor info structure */
434	typedef struct	491	typedef struct
435	{	492	{
436	WL head;	493	WL head;
437	unsigned char events;	494	unsigned char events; /* the events watched for */
		495	unsigned char reify; /* flag set when this ANFD needs reification */
		496	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
438	unsigned char reify;	497	unsigned char unused;
		498	#if EV_USE_EPOLL
		499	unsigned int egen; /* generation counter to counter epoll bugs */
		500	#endif
439	#if EV_SELECT_IS_WINSOCKET	501	#if EV_SELECT_IS_WINSOCKET
440	SOCKET handle;	502	SOCKET handle;
441	#endif	503	#endif
442	} ANFD;	504	} ANFD;
443		505
		506	/* stores the pending event set for a given watcher */
444	typedef struct	507	typedef struct
445	{	508	{
446	W w;	509	W w;
447	int events;	510	int events; /* the pending event set for the given watcher */
448	} ANPENDING;	511	} ANPENDING;
449		512
450	#if EV_USE_INOTIFY	513	#if EV_USE_INOTIFY
451	/* hash table entry per inotify-id */	514	/* hash table entry per inotify-id */
452	typedef struct	515	typedef struct
…		…
455	} ANFS;	518	} ANFS;
456	#endif	519	#endif
457		520
458	/* Heap Entry */	521	/* Heap Entry */
459	#if EV_HEAP_CACHE_AT	522	#if EV_HEAP_CACHE_AT
		523	/* a heap element */
460	typedef struct {	524	typedef struct {
461	ev_tstamp at;	525	ev_tstamp at;
462	WT w;	526	WT w;
463	} ANHE;	527	} ANHE;
464		528
465	#define ANHE_w(he) (he).w /* access watcher, read-write */	529	#define ANHE_w(he) (he).w /* access watcher, read-write */
466	#define ANHE_at(he) (he).at /* access cached at, read-only */	530	#define ANHE_at(he) (he).at /* access cached at, read-only */
467	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	531	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
468	#else	532	#else
		533	/* a heap element */
469	typedef WT ANHE;	534	typedef WT ANHE;
470		535
471	#define ANHE_w(he) (he)	536	#define ANHE_w(he) (he)
472	#define ANHE_at(he) (he)->at	537	#define ANHE_at(he) (he)->at
473	#define ANHE_at_cache(he)	538	#define ANHE_at_cache(he)
…		…
503		568
504	ev_tstamp	569	ev_tstamp
505	ev_time (void)	570	ev_time (void)
506	{	571	{
507	#if EV_USE_REALTIME	572	#if EV_USE_REALTIME
		573	if (expect_true (have_realtime))
		574	{
508	struct timespec ts;	575	struct timespec ts;
509	clock_gettime (CLOCK_REALTIME, &ts);	576	clock_gettime (CLOCK_REALTIME, &ts);
510	return ts.tv_sec + ts.tv_nsec * 1e-9;	577	return ts.tv_sec + ts.tv_nsec * 1e-9;
511	#else	578	}
		579	#endif
		580
512	struct timeval tv;	581	struct timeval tv;
513	gettimeofday (&tv, 0);	582	gettimeofday (&tv, 0);
514	return tv.tv_sec + tv.tv_usec * 1e-6;	583	return tv.tv_sec + tv.tv_usec * 1e-6;
515	#endif
516	}	584	}
517		585
518	ev_tstamp inline_size	586	inline_size ev_tstamp
519	get_clock (void)	587	get_clock (void)
520	{	588	{
521	#if EV_USE_MONOTONIC	589	#if EV_USE_MONOTONIC
522	if (expect_true (have_monotonic))	590	if (expect_true (have_monotonic))
523	{	591	{
…		…
556	struct timeval tv;	624	struct timeval tv;
557		625
558	tv.tv_sec = (time_t)delay;	626	tv.tv_sec = (time_t)delay;
559	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	627	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560		628
		629	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		630	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		631	/* by older ones */
561	select (0, 0, 0, 0, &tv);	632	select (0, 0, 0, 0, &tv);
562	#endif	633	#endif
563	}	634	}
564	}	635	}
565		636
566	/*****************************************************************************/	637	/*****************************************************************************/
567		638
568	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	639	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
569		640
570	int inline_size	641	/* find a suitable new size for the given array, */
		642	/* hopefully by rounding to a ncie-to-malloc size */
		643	inline_size int
571	array_nextsize (int elem, int cur, int cnt)	644	array_nextsize (int elem, int cur, int cnt)
572	{	645	{
573	int ncur = cur + 1;	646	int ncur = cur + 1;
574		647
575	do	648	do
…		…
592	array_realloc (int elem, void *base, int *cur, int cnt)	665	array_realloc (int elem, void *base, int *cur, int cnt)
593	{	666	{
594	*cur = array_nextsize (elem, *cur, cnt);	667	*cur = array_nextsize (elem, *cur, cnt);
595	return ev_realloc (base, elem * *cur);	668	return ev_realloc (base, elem * *cur);
596	}	669	}
		670
		671	#define array_init_zero(base,count) \
		672	memset ((void *)(base), 0, sizeof (*(base)) * (count))
597		673
598	#define array_needsize(type,base,cur,cnt,init) \	674	#define array_needsize(type,base,cur,cnt,init) \
599	if (expect_false ((cnt) > (cur))) \	675	if (expect_false ((cnt) > (cur))) \
600	{ \	676	{ \
601	int ocur_ = (cur); \	677	int ocur_ = (cur); \
…		…
613	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	689	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614	}	690	}
615	#endif	691	#endif
616		692
617	#define array_free(stem, idx) \	693	#define array_free(stem, idx) \
618	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	694	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
619		695
620	/*****************************************************************************/	696	/*****************************************************************************/
		697
		698	/* dummy callback for pending events */
		699	static void noinline
		700	pendingcb (EV_P_ ev_prepare *w, int revents)
		701	{
		702	}
621		703
622	void noinline	704	void noinline
623	ev_feed_event (EV_P_ void *w, int revents)	705	ev_feed_event (EV_P_ void *w, int revents)
624	{	706	{
625	W w_ = (W)w;	707	W w_ = (W)w;
…		…
634	pendings [pri][w_->pending - 1].w = w_;	716	pendings [pri][w_->pending - 1].w = w_;
635	pendings [pri][w_->pending - 1].events = revents;	717	pendings [pri][w_->pending - 1].events = revents;
636	}	718	}
637	}	719	}
638		720
639	void inline_speed	721	inline_speed void
		722	feed_reverse (EV_P_ W w)
		723	{
		724	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		725	rfeeds [rfeedcnt++] = w;
		726	}
		727
		728	inline_size void
		729	feed_reverse_done (EV_P_ int revents)
		730	{
		731	do
		732	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		733	while (rfeedcnt);
		734	}
		735
		736	inline_speed void
640	queue_events (EV_P_ W *events, int eventcnt, int type)	737	queue_events (EV_P_ W *events, int eventcnt, int type)
641	{	738	{
642	int i;	739	int i;
643		740
644	for (i = 0; i < eventcnt; ++i)	741	for (i = 0; i < eventcnt; ++i)
645	ev_feed_event (EV_A_ events [i], type);	742	ev_feed_event (EV_A_ events [i], type);
646	}	743	}
647		744
648	/*****************************************************************************/	745	/*****************************************************************************/
649		746
650	void inline_size	747	inline_speed void
651	anfds_init (ANFD *base, int count)
652	{
653	while (count--)
654	{
655	base->head = 0;
656	base->events = EV_NONE;
657	base->reify = 0;
658
659	++base;
660	}
661	}
662
663	void inline_speed
664	fd_event (EV_P_ int fd, int revents)	748	fd_event (EV_P_ int fd, int revents)
665	{	749	{
666	ANFD *anfd = anfds + fd;	750	ANFD *anfd = anfds + fd;
667	ev_io *w;	751	ev_io *w;
668		752
…		…
680	{	764	{
681	if (fd >= 0 && fd < anfdmax)	765	if (fd >= 0 && fd < anfdmax)
682	fd_event (EV_A_ fd, revents);	766	fd_event (EV_A_ fd, revents);
683	}	767	}
684		768
685	void inline_size	769	/* make sure the external fd watch events are in-sync */
		770	/* with the kernel/libev internal state */
		771	inline_size void
686	fd_reify (EV_P)	772	fd_reify (EV_P)
687	{	773	{
688	int i;	774	int i;
689		775
690	for (i = 0; i < fdchangecnt; ++i)	776	for (i = 0; i < fdchangecnt; ++i)
…		…
699	events |= (unsigned char)w->events;	785	events |= (unsigned char)w->events;
700		786
701	#if EV_SELECT_IS_WINSOCKET	787	#if EV_SELECT_IS_WINSOCKET
702	if (events)	788	if (events)
703	{	789	{
704	unsigned long argp;	790	unsigned long arg;
705	#ifdef EV_FD_TO_WIN32_HANDLE	791	#ifdef EV_FD_TO_WIN32_HANDLE
706	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	792	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707	#else	793	#else
708	anfd->handle = _get_osfhandle (fd);	794	anfd->handle = _get_osfhandle (fd);
709	#endif	795	#endif
710	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	796	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
711	}	797	}
712	#endif	798	#endif
713		799
714	{	800	{
715	unsigned char o_events = anfd->events;	801	unsigned char o_events = anfd->events;
716	unsigned char o_reify = anfd->reify;	802	unsigned char o_reify = anfd->reify;
717		803
718	anfd->reify = 0;	804	anfd->reify = 0;
719	anfd->events = events;	805	anfd->events = events;
720		806
721	if (o_events != events || o_reify & EV_IOFDSET)	807	if (o_events != events || o_reify & EV__IOFDSET)
722	backend_modify (EV_A_ fd, o_events, events);	808	backend_modify (EV_A_ fd, o_events, events);
723	}	809	}
724	}	810	}
725		811
726	fdchangecnt = 0;	812	fdchangecnt = 0;
727	}	813	}
728		814
729	void inline_size	815	/* something about the given fd changed */
		816	inline_size void
730	fd_change (EV_P_ int fd, int flags)	817	fd_change (EV_P_ int fd, int flags)
731	{	818	{
732	unsigned char reify = anfds [fd].reify;	819	unsigned char reify = anfds [fd].reify;
733	anfds [fd].reify |= flags;	820	anfds [fd].reify |= flags;
734		821
…		…
738	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	825	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739	fdchanges [fdchangecnt - 1] = fd;	826	fdchanges [fdchangecnt - 1] = fd;
740	}	827	}
741	}	828	}
742		829
743	void inline_speed	830	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		831	inline_speed void
744	fd_kill (EV_P_ int fd)	832	fd_kill (EV_P_ int fd)
745	{	833	{
746	ev_io *w;	834	ev_io *w;
747		835
748	while ((w = (ev_io *)anfds [fd].head))	836	while ((w = (ev_io *)anfds [fd].head))
…		…
750	ev_io_stop (EV_A_ w);	838	ev_io_stop (EV_A_ w);
751	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	839	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
752	}	840	}
753	}	841	}
754		842
755	int inline_size	843	/* check whether the given fd is atcually valid, for error recovery */
		844	inline_size int
756	fd_valid (int fd)	845	fd_valid (int fd)
757	{	846	{
758	#ifdef _WIN32	847	#ifdef _WIN32
759	return _get_osfhandle (fd) != -1;	848	return _get_osfhandle (fd) != -1;
760	#else	849	#else
…		…
768	{	857	{
769	int fd;	858	int fd;
770		859
771	for (fd = 0; fd < anfdmax; ++fd)	860	for (fd = 0; fd < anfdmax; ++fd)
772	if (anfds [fd].events)	861	if (anfds [fd].events)
773	if (!fd_valid (fd) == -1 && errno == EBADF)	862	if (!fd_valid (fd) && errno == EBADF)
774	fd_kill (EV_A_ fd);	863	fd_kill (EV_A_ fd);
775	}	864	}
776		865
777	/* called on ENOMEM in select/poll to kill some fds and retry */	866	/* called on ENOMEM in select/poll to kill some fds and retry */
778	static void noinline	867	static void noinline
…		…
796		885
797	for (fd = 0; fd < anfdmax; ++fd)	886	for (fd = 0; fd < anfdmax; ++fd)
798	if (anfds [fd].events)	887	if (anfds [fd].events)
799	{	888	{
800	anfds [fd].events = 0;	889	anfds [fd].events = 0;
		890	anfds [fd].emask = 0;
801	fd_change (EV_A_ fd, EV_IOFDSET | 1);	891	fd_change (EV_A_ fd, EV__IOFDSET | 1);
802	}	892	}
803	}	893	}
804		894
805	/*****************************************************************************/	895	/*****************************************************************************/
806		896
…		…
822	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	912	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	913	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824	#define UPHEAP_DONE(p,k) ((p) == (k))	914	#define UPHEAP_DONE(p,k) ((p) == (k))
825		915
826	/* away from the root */	916	/* away from the root */
827	void inline_speed	917	inline_speed void
828	downheap (ANHE *heap, int N, int k)	918	downheap (ANHE *heap, int N, int k)
829	{	919	{
830	ANHE he = heap [k];	920	ANHE he = heap [k];
831	ANHE *E = heap + N + HEAP0;	921	ANHE *E = heap + N + HEAP0;
832		922
…		…
872	#define HEAP0 1	962	#define HEAP0 1
873	#define HPARENT(k) ((k) >> 1)	963	#define HPARENT(k) ((k) >> 1)
874	#define UPHEAP_DONE(p,k) (!(p))	964	#define UPHEAP_DONE(p,k) (!(p))
875		965
876	/* away from the root */	966	/* away from the root */
877	void inline_speed	967	inline_speed void
878	downheap (ANHE *heap, int N, int k)	968	downheap (ANHE *heap, int N, int k)
879	{	969	{
880	ANHE he = heap [k];	970	ANHE he = heap [k];
881		971
882	for (;;)	972	for (;;)
…		…
902	ev_active (ANHE_w (he)) = k;	992	ev_active (ANHE_w (he)) = k;
903	}	993	}
904	#endif	994	#endif
905		995
906	/* towards the root */	996	/* towards the root */
907	void inline_speed	997	inline_speed void
908	upheap (ANHE *heap, int k)	998	upheap (ANHE *heap, int k)
909	{	999	{
910	ANHE he = heap [k];	1000	ANHE he = heap [k];
911		1001
912	for (;;)	1002	for (;;)
…		…
923		1013
924	heap [k] = he;	1014	heap [k] = he;
925	ev_active (ANHE_w (he)) = k;	1015	ev_active (ANHE_w (he)) = k;
926	}	1016	}
927		1017
928	void inline_size	1018	/* move an element suitably so it is in a correct place */
		1019	inline_size void
929	adjustheap (ANHE *heap, int N, int k)	1020	adjustheap (ANHE *heap, int N, int k)
930	{	1021	{
931	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1022	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
932	upheap (heap, k);	1023	upheap (heap, k);
933	else	1024	else
934	downheap (heap, N, k);	1025	downheap (heap, N, k);
935	}	1026	}
936		1027
937	/* rebuild the heap: this function is used only once and executed rarely */	1028	/* rebuild the heap: this function is used only once and executed rarely */
938	void inline_size	1029	inline_size void
939	reheap (ANHE *heap, int N)	1030	reheap (ANHE *heap, int N)
940	{	1031	{
941	int i;	1032	int i;
942		1033
943	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1034	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
946	upheap (heap, i + HEAP0);	1037	upheap (heap, i + HEAP0);
947	}	1038	}
948		1039
949	/*****************************************************************************/	1040	/*****************************************************************************/
950		1041
		1042	/* associate signal watchers to a signal signal */
951	typedef struct	1043	typedef struct
952	{	1044	{
953	WL head;	1045	WL head;
954	EV_ATOMIC_T gotsig;	1046	EV_ATOMIC_T gotsig;
955	} ANSIG;	1047	} ANSIG;
…		…
957	static ANSIG *signals;	1049	static ANSIG *signals;
958	static int signalmax;	1050	static int signalmax;
959		1051
960	static EV_ATOMIC_T gotsig;	1052	static EV_ATOMIC_T gotsig;
961		1053
962	void inline_size
963	signals_init (ANSIG *base, int count)
964	{
965	while (count--)
966	{
967	base->head = 0;
968	base->gotsig = 0;
969
970	++base;
971	}
972	}
973
974	/*****************************************************************************/	1054	/*****************************************************************************/
975		1055
976	void inline_speed	1056	/* used to prepare libev internal fd's */
		1057	/* this is not fork-safe */
		1058	inline_speed void
977	fd_intern (int fd)	1059	fd_intern (int fd)
978	{	1060	{
979	#ifdef _WIN32	1061	#ifdef _WIN32
980	int arg = 1;	1062	unsigned long arg = 1;
981	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1063	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
982	#else	1064	#else
983	fcntl (fd, F_SETFD, FD_CLOEXEC);	1065	fcntl (fd, F_SETFD, FD_CLOEXEC);
984	fcntl (fd, F_SETFL, O_NONBLOCK);	1066	fcntl (fd, F_SETFL, O_NONBLOCK);
985	#endif	1067	#endif
986	}	1068	}
987		1069
988	static void noinline	1070	static void noinline
989	evpipe_init (EV_P)	1071	evpipe_init (EV_P)
990	{	1072	{
991	if (!ev_is_active (&pipeev))	1073	if (!ev_is_active (&pipe_w))
992	{	1074	{
993	#if EV_USE_EVENTFD	1075	#if EV_USE_EVENTFD
994	if ((evfd = eventfd (0, 0)) >= 0)	1076	if ((evfd = eventfd (0, 0)) >= 0)
995	{	1077	{
996	evpipe [0] = -1;	1078	evpipe [0] = -1;
997	fd_intern (evfd);	1079	fd_intern (evfd);
998	ev_io_set (&pipeev, evfd, EV_READ);	1080	ev_io_set (&pipe_w, evfd, EV_READ);
999	}	1081	}
1000	else	1082	else
1001	#endif	1083	#endif
1002	{	1084	{
1003	while (pipe (evpipe))	1085	while (pipe (evpipe))
1004	syserr ("(libev) error creating signal/async pipe");	1086	ev_syserr ("(libev) error creating signal/async pipe");
1005		1087
1006	fd_intern (evpipe [0]);	1088	fd_intern (evpipe [0]);
1007	fd_intern (evpipe [1]);	1089	fd_intern (evpipe [1]);
1008	ev_io_set (&pipeev, evpipe [0], EV_READ);	1090	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1009	}	1091	}
1010		1092
1011	ev_io_start (EV_A_ &pipeev);	1093	ev_io_start (EV_A_ &pipe_w);
1012	ev_unref (EV_A); /* watcher should not keep loop alive */	1094	ev_unref (EV_A); /* watcher should not keep loop alive */
1013	}	1095	}
1014	}	1096	}
1015		1097
1016	void inline_size	1098	inline_size void
1017	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1099	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1018	{	1100	{
1019	if (!*flag)	1101	if (!*flag)
1020	{	1102	{
1021	int old_errno = errno; /* save errno because write might clobber it */	1103	int old_errno = errno; /* save errno because write might clobber it */
…		…
1034		1116
1035	errno = old_errno;	1117	errno = old_errno;
1036	}	1118	}
1037	}	1119	}
1038		1120
		1121	/* called whenever the libev signal pipe */
		1122	/* got some events (signal, async) */
1039	static void	1123	static void
1040	pipecb (EV_P_ ev_io *iow, int revents)	1124	pipecb (EV_P_ ev_io *iow, int revents)
1041	{	1125	{
1042	#if EV_USE_EVENTFD	1126	#if EV_USE_EVENTFD
1043	if (evfd >= 0)	1127	if (evfd >= 0)
…		…
1099	ev_feed_signal_event (EV_P_ int signum)	1183	ev_feed_signal_event (EV_P_ int signum)
1100	{	1184	{
1101	WL w;	1185	WL w;
1102		1186
1103	#if EV_MULTIPLICITY	1187	#if EV_MULTIPLICITY
1104	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1188	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1105	#endif	1189	#endif
1106		1190
1107	--signum;	1191	--signum;
1108		1192
1109	if (signum < 0 || signum >= signalmax)	1193	if (signum < 0 || signum >= signalmax)
…		…
1125		1209
1126	#ifndef WIFCONTINUED	1210	#ifndef WIFCONTINUED
1127	# define WIFCONTINUED(status) 0	1211	# define WIFCONTINUED(status) 0
1128	#endif	1212	#endif
1129		1213
1130	void inline_speed	1214	/* handle a single child status event */
		1215	inline_speed void
1131	child_reap (EV_P_ int chain, int pid, int status)	1216	child_reap (EV_P_ int chain, int pid, int status)
1132	{	1217	{
1133	ev_child *w;	1218	ev_child *w;
1134	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1219	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1135		1220
…		…
1148		1233
1149	#ifndef WCONTINUED	1234	#ifndef WCONTINUED
1150	# define WCONTINUED 0	1235	# define WCONTINUED 0
1151	#endif	1236	#endif
1152		1237
		1238	/* called on sigchld etc., calls waitpid */
1153	static void	1239	static void
1154	childcb (EV_P_ ev_signal *sw, int revents)	1240	childcb (EV_P_ ev_signal *sw, int revents)
1155	{	1241	{
1156	int pid, status;	1242	int pid, status;
1157		1243
…		…
1238	/* kqueue is borked on everything but netbsd apparently */	1324	/* kqueue is borked on everything but netbsd apparently */
1239	/* it usually doesn't work correctly on anything but sockets and pipes */	1325	/* it usually doesn't work correctly on anything but sockets and pipes */
1240	flags &= ~EVBACKEND_KQUEUE;	1326	flags &= ~EVBACKEND_KQUEUE;
1241	#endif	1327	#endif
1242	#ifdef __APPLE__	1328	#ifdef __APPLE__
1243	// flags &= ~EVBACKEND_KQUEUE; for documentation	1329	/* only select works correctly on that "unix-certified" platform */
1244	flags &= ~EVBACKEND_POLL;	1330	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1331	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1245	#endif	1332	#endif
1246		1333
1247	return flags;	1334	return flags;
1248	}	1335	}
1249		1336
…		…
1281	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1368	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1282	{	1369	{
1283	timeout_blocktime = interval;	1370	timeout_blocktime = interval;
1284	}	1371	}
1285		1372
		1373	/* initialise a loop structure, must be zero-initialised */
1286	static void noinline	1374	static void noinline
1287	loop_init (EV_P_ unsigned int flags)	1375	loop_init (EV_P_ unsigned int flags)
1288	{	1376	{
1289	if (!backend)	1377	if (!backend)
1290	{	1378	{
		1379	#if EV_USE_REALTIME
		1380	if (!have_realtime)
		1381	{
		1382	struct timespec ts;
		1383
		1384	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1385	have_realtime = 1;
		1386	}
		1387	#endif
		1388
1291	#if EV_USE_MONOTONIC	1389	#if EV_USE_MONOTONIC
		1390	if (!have_monotonic)
1292	{	1391	{
1293	struct timespec ts;	1392	struct timespec ts;
		1393
1294	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1394	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1295	have_monotonic = 1;	1395	have_monotonic = 1;
1296	}	1396	}
1297	#endif	1397	#endif
1298		1398
1299	ev_rt_now = ev_time ();	1399	ev_rt_now = ev_time ();
1300	mn_now = get_clock ();	1400	mn_now = get_clock ();
1301	now_floor = mn_now;	1401	now_floor = mn_now;
…		…
1338	#endif	1438	#endif
1339	#if EV_USE_SELECT	1439	#if EV_USE_SELECT
1340	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1440	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1341	#endif	1441	#endif
1342		1442
		1443	ev_prepare_init (&pending_w, pendingcb);
		1444
1343	ev_init (&pipeev, pipecb);	1445	ev_init (&pipe_w, pipecb);
1344	ev_set_priority (&pipeev, EV_MAXPRI);	1446	ev_set_priority (&pipe_w, EV_MAXPRI);
1345	}	1447	}
1346	}	1448	}
1347		1449
		1450	/* free up a loop structure */
1348	static void noinline	1451	static void noinline
1349	loop_destroy (EV_P)	1452	loop_destroy (EV_P)
1350	{	1453	{
1351	int i;	1454	int i;
1352		1455
1353	if (ev_is_active (&pipeev))	1456	if (ev_is_active (&pipe_w))
1354	{	1457	{
1355	ev_ref (EV_A); /* signal watcher */	1458	ev_ref (EV_A); /* signal watcher */
1356	ev_io_stop (EV_A_ &pipeev);	1459	ev_io_stop (EV_A_ &pipe_w);
1357		1460
1358	#if EV_USE_EVENTFD	1461	#if EV_USE_EVENTFD
1359	if (evfd >= 0)	1462	if (evfd >= 0)
1360	close (evfd);	1463	close (evfd);
1361	#endif	1464	#endif
…		…
1400	}	1503	}
1401		1504
1402	ev_free (anfds); anfdmax = 0;	1505	ev_free (anfds); anfdmax = 0;
1403		1506
1404	/* have to use the microsoft-never-gets-it-right macro */	1507	/* have to use the microsoft-never-gets-it-right macro */
		1508	array_free (rfeed, EMPTY);
1405	array_free (fdchange, EMPTY);	1509	array_free (fdchange, EMPTY);
1406	array_free (timer, EMPTY);	1510	array_free (timer, EMPTY);
1407	#if EV_PERIODIC_ENABLE	1511	#if EV_PERIODIC_ENABLE
1408	array_free (periodic, EMPTY);	1512	array_free (periodic, EMPTY);
1409	#endif	1513	#endif
…		…
1418		1522
1419	backend = 0;	1523	backend = 0;
1420	}	1524	}
1421		1525
1422	#if EV_USE_INOTIFY	1526	#if EV_USE_INOTIFY
1423	void inline_size infy_fork (EV_P);	1527	inline_size void infy_fork (EV_P);
1424	#endif	1528	#endif
1425		1529
1426	void inline_size	1530	inline_size void
1427	loop_fork (EV_P)	1531	loop_fork (EV_P)
1428	{	1532	{
1429	#if EV_USE_PORT	1533	#if EV_USE_PORT
1430	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1534	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1431	#endif	1535	#endif
…		…
1437	#endif	1541	#endif
1438	#if EV_USE_INOTIFY	1542	#if EV_USE_INOTIFY
1439	infy_fork (EV_A);	1543	infy_fork (EV_A);
1440	#endif	1544	#endif
1441		1545
1442	if (ev_is_active (&pipeev))	1546	if (ev_is_active (&pipe_w))
1443	{	1547	{
1444	/* this "locks" the handlers against writing to the pipe */	1548	/* this "locks" the handlers against writing to the pipe */
1445	/* while we modify the fd vars */	1549	/* while we modify the fd vars */
1446	gotsig = 1;	1550	gotsig = 1;
1447	#if EV_ASYNC_ENABLE	1551	#if EV_ASYNC_ENABLE
1448	gotasync = 1;	1552	gotasync = 1;
1449	#endif	1553	#endif
1450		1554
1451	ev_ref (EV_A);	1555	ev_ref (EV_A);
1452	ev_io_stop (EV_A_ &pipeev);	1556	ev_io_stop (EV_A_ &pipe_w);
1453		1557
1454	#if EV_USE_EVENTFD	1558	#if EV_USE_EVENTFD
1455	if (evfd >= 0)	1559	if (evfd >= 0)
1456	close (evfd);	1560	close (evfd);
1457	#endif	1561	#endif
…		…
1462	close (evpipe [1]);	1566	close (evpipe [1]);
1463	}	1567	}
1464		1568
1465	evpipe_init (EV_A);	1569	evpipe_init (EV_A);
1466	/* now iterate over everything, in case we missed something */	1570	/* now iterate over everything, in case we missed something */
1467	pipecb (EV_A_ &pipeev, EV_READ);	1571	pipecb (EV_A_ &pipe_w, EV_READ);
1468	}	1572	}
1469		1573
1470	postfork = 0;	1574	postfork = 0;
1471	}	1575	}
1472		1576
…		…
1499	{	1603	{
1500	postfork = 1; /* must be in line with ev_default_fork */	1604	postfork = 1; /* must be in line with ev_default_fork */
1501	}	1605	}
1502		1606
1503	#if EV_VERIFY	1607	#if EV_VERIFY
1504	void noinline	1608	static void noinline
1505	verify_watcher (EV_P_ W w)	1609	verify_watcher (EV_P_ W w)
1506	{	1610	{
1507	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1611	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1508		1612
1509	if (w->pending)	1613	if (w->pending)
1510	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	1614	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1511	}	1615	}
1512		1616
1513	static void noinline	1617	static void noinline
1514	verify_heap (EV_P_ ANHE *heap, int N)	1618	verify_heap (EV_P_ ANHE *heap, int N)
1515	{	1619	{
1516	int i;	1620	int i;
1517		1621
1518	for (i = HEAP0; i < N + HEAP0; ++i)	1622	for (i = HEAP0; i < N + HEAP0; ++i)
1519	{	1623	{
1520	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));	1624	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1521	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));	1625	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1522	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));	1626	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1523		1627
1524	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1628	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1525	}	1629	}
1526	}	1630	}
1527		1631
1528	static void noinline	1632	static void noinline
1529	array_verify (EV_P_ W *ws, int cnt)	1633	array_verify (EV_P_ W *ws, int cnt)
1530	{	1634	{
1531	while (cnt--)	1635	while (cnt--)
1532	{	1636	{
1533	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1637	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1534	verify_watcher (EV_A_ ws [cnt]);	1638	verify_watcher (EV_A_ ws [cnt]);
1535	}	1639	}
1536	}	1640	}
1537	#endif	1641	#endif
1538		1642
…		…
1545		1649
1546	assert (activecnt >= -1);	1650	assert (activecnt >= -1);
1547		1651
1548	assert (fdchangemax >= fdchangecnt);	1652	assert (fdchangemax >= fdchangecnt);
1549	for (i = 0; i < fdchangecnt; ++i)	1653	for (i = 0; i < fdchangecnt; ++i)
1550	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1654	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1551		1655
1552	assert (anfdmax >= 0);	1656	assert (anfdmax >= 0);
1553	for (i = 0; i < anfdmax; ++i)	1657	for (i = 0; i < anfdmax; ++i)
1554	for (w = anfds [i].head; w; w = w->next)	1658	for (w = anfds [i].head; w; w = w->next)
1555	{	1659	{
1556	verify_watcher (EV_A_ (W)w);	1660	verify_watcher (EV_A_ (W)w);
1557	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1661	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1558	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	1662	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1559	}	1663	}
1560		1664
1561	assert (timermax >= timercnt);	1665	assert (timermax >= timercnt);
1562	verify_heap (EV_A_ timers, timercnt);	1666	verify_heap (EV_A_ timers, timercnt);
1563		1667
…		…
1568		1672
1569	for (i = NUMPRI; i--; )	1673	for (i = NUMPRI; i--; )
1570	{	1674	{
1571	assert (pendingmax [i] >= pendingcnt [i]);	1675	assert (pendingmax [i] >= pendingcnt [i]);
1572	#if EV_IDLE_ENABLE	1676	#if EV_IDLE_ENABLE
		1677	assert (idleall >= 0);
1573	assert (idlemax [i] >= idlecnt [i]);	1678	assert (idlemax [i] >= idlecnt [i]);
1574	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);	1679	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1575	#endif	1680	#endif
1576	}	1681	}
1577		1682
…		…
1639	{	1744	{
1640	#if EV_MULTIPLICITY	1745	#if EV_MULTIPLICITY
1641	struct ev_loop *loop = ev_default_loop_ptr;	1746	struct ev_loop *loop = ev_default_loop_ptr;
1642	#endif	1747	#endif
1643		1748
		1749	ev_default_loop_ptr = 0;
		1750
1644	#ifndef _WIN32	1751	#ifndef _WIN32
1645	ev_ref (EV_A); /* child watcher */	1752	ev_ref (EV_A); /* child watcher */
1646	ev_signal_stop (EV_A_ &childev);	1753	ev_signal_stop (EV_A_ &childev);
1647	#endif	1754	#endif
1648		1755
…		…
1654	{	1761	{
1655	#if EV_MULTIPLICITY	1762	#if EV_MULTIPLICITY
1656	struct ev_loop *loop = ev_default_loop_ptr;	1763	struct ev_loop *loop = ev_default_loop_ptr;
1657	#endif	1764	#endif
1658		1765
1659	if (backend)
1660	postfork = 1; /* must be in line with ev_loop_fork */	1766	postfork = 1; /* must be in line with ev_loop_fork */
1661	}	1767	}
1662		1768
1663	/*****************************************************************************/	1769	/*****************************************************************************/
1664		1770
1665	void	1771	void
1666	ev_invoke (EV_P_ void *w, int revents)	1772	ev_invoke (EV_P_ void *w, int revents)
1667	{	1773	{
1668	EV_CB_INVOKE ((W)w, revents);	1774	EV_CB_INVOKE ((W)w, revents);
1669	}	1775	}
1670		1776
1671	void inline_speed	1777	inline_speed void
1672	call_pending (EV_P)	1778	call_pending (EV_P)
1673	{	1779	{
1674	int pri;	1780	int pri;
1675		1781
1676	for (pri = NUMPRI; pri--; )	1782	for (pri = NUMPRI; pri--; )
1677	while (pendingcnt [pri])	1783	while (pendingcnt [pri])
1678	{	1784	{
1679	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1785	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1680		1786
1681	if (expect_true (p->w))
1682	{
1683	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1787	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1788	/* ^ this is no longer true, as pending_w could be here */
1684		1789
1685	p->w->pending = 0;	1790	p->w->pending = 0;
1686	EV_CB_INVOKE (p->w, p->events);	1791	EV_CB_INVOKE (p->w, p->events);
1687	EV_FREQUENT_CHECK;	1792	EV_FREQUENT_CHECK;
1688	}
1689	}	1793	}
1690	}	1794	}
1691		1795
1692	#if EV_IDLE_ENABLE	1796	#if EV_IDLE_ENABLE
1693	void inline_size	1797	/* make idle watchers pending. this handles the "call-idle */
		1798	/* only when higher priorities are idle" logic */
		1799	inline_size void
1694	idle_reify (EV_P)	1800	idle_reify (EV_P)
1695	{	1801	{
1696	if (expect_false (idleall))	1802	if (expect_false (idleall))
1697	{	1803	{
1698	int pri;	1804	int pri;
…		…
1710	}	1816	}
1711	}	1817	}
1712	}	1818	}
1713	#endif	1819	#endif
1714		1820
1715	void inline_size	1821	/* make timers pending */
		1822	inline_size void
1716	timers_reify (EV_P)	1823	timers_reify (EV_P)
1717	{	1824	{
1718	EV_FREQUENT_CHECK;	1825	EV_FREQUENT_CHECK;
1719		1826
1720	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1827	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1721	{	1828	{
1722	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1829	do
1723
1724	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1725
1726	/* first reschedule or stop timer */
1727	if (w->repeat)
1728	{	1830	{
		1831	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1832
		1833	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		1834
		1835	/* first reschedule or stop timer */
		1836	if (w->repeat)
		1837	{
1729	ev_at (w) += w->repeat;	1838	ev_at (w) += w->repeat;
1730	if (ev_at (w) < mn_now)	1839	if (ev_at (w) < mn_now)
1731	ev_at (w) = mn_now;	1840	ev_at (w) = mn_now;
1732		1841
1733	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1842	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1734		1843
1735	ANHE_at_cache (timers [HEAP0]);	1844	ANHE_at_cache (timers [HEAP0]);
1736	downheap (timers, timercnt, HEAP0);	1845	downheap (timers, timercnt, HEAP0);
		1846	}
		1847	else
		1848	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1849
		1850	EV_FREQUENT_CHECK;
		1851	feed_reverse (EV_A_ (W)w);
1737	}	1852	}
1738	else	1853	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1739	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1740		1854
1741	EV_FREQUENT_CHECK;
1742	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1855	feed_reverse_done (EV_A_ EV_TIMEOUT);
1743	}	1856	}
1744	}	1857	}
1745		1858
1746	#if EV_PERIODIC_ENABLE	1859	#if EV_PERIODIC_ENABLE
1747	void inline_size	1860	/* make periodics pending */
		1861	inline_size void
1748	periodics_reify (EV_P)	1862	periodics_reify (EV_P)
1749	{	1863	{
1750	EV_FREQUENT_CHECK;	1864	EV_FREQUENT_CHECK;
1751		1865
1752	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1866	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1753	{	1867	{
1754	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1868	int feed_count = 0;
1755		1869
1756	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1870	do
1757
1758	/* first reschedule or stop timer */
1759	if (w->reschedule_cb)
1760	{	1871	{
		1872	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1873
		1874	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		1875
		1876	/* first reschedule or stop timer */
		1877	if (w->reschedule_cb)
		1878	{
1761	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1879	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1762		1880
1763	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1881	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1764		1882
1765	ANHE_at_cache (periodics [HEAP0]);	1883	ANHE_at_cache (periodics [HEAP0]);
1766	downheap (periodics, periodiccnt, HEAP0);	1884	downheap (periodics, periodiccnt, HEAP0);
		1885	}
		1886	else if (w->interval)
		1887	{
		1888	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1889	/* if next trigger time is not sufficiently in the future, put it there */
		1890	/* this might happen because of floating point inexactness */
		1891	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1892	{
		1893	ev_at (w) += w->interval;
		1894
		1895	/* if interval is unreasonably low we might still have a time in the past */
		1896	/* so correct this. this will make the periodic very inexact, but the user */
		1897	/* has effectively asked to get triggered more often than possible */
		1898	if (ev_at (w) < ev_rt_now)
		1899	ev_at (w) = ev_rt_now;
		1900	}
		1901
		1902	ANHE_at_cache (periodics [HEAP0]);
		1903	downheap (periodics, periodiccnt, HEAP0);
		1904	}
		1905	else
		1906	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1907
		1908	EV_FREQUENT_CHECK;
		1909	feed_reverse (EV_A_ (W)w);
1767	}	1910	}
1768	else if (w->interval)	1911	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1769	{
1770	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1771	/* if next trigger time is not sufficiently in the future, put it there */
1772	/* this might happen because of floating point inexactness */
1773	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1774	{
1775	ev_at (w) += w->interval;
1776		1912
1777	/* if interval is unreasonably low we might still have a time in the past */
1778	/* so correct this. this will make the periodic very inexact, but the user */
1779	/* has effectively asked to get triggered more often than possible */
1780	if (ev_at (w) < ev_rt_now)
1781	ev_at (w) = ev_rt_now;
1782	}
1783
1784	ANHE_at_cache (periodics [HEAP0]);
1785	downheap (periodics, periodiccnt, HEAP0);
1786	}
1787	else
1788	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1789
1790	EV_FREQUENT_CHECK;
1791	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1913	feed_reverse_done (EV_A_ EV_PERIODIC);
1792	}	1914	}
1793	}	1915	}
1794		1916
		1917	/* simply recalculate all periodics */
		1918	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1795	static void noinline	1919	static void noinline
1796	periodics_reschedule (EV_P)	1920	periodics_reschedule (EV_P)
1797	{	1921	{
1798	int i;	1922	int i;
1799		1923
…		…
1812		1936
1813	reheap (periodics, periodiccnt);	1937	reheap (periodics, periodiccnt);
1814	}	1938	}
1815	#endif	1939	#endif
1816		1940
1817	void inline_speed	1941	/* adjust all timers by a given offset */
		1942	static void noinline
		1943	timers_reschedule (EV_P_ ev_tstamp adjust)
		1944	{
		1945	int i;
		1946
		1947	for (i = 0; i < timercnt; ++i)
		1948	{
		1949	ANHE *he = timers + i + HEAP0;
		1950	ANHE_w (*he)->at += adjust;
		1951	ANHE_at_cache (*he);
		1952	}
		1953	}
		1954
		1955	/* fetch new monotonic and realtime times from the kernel */
		1956	/* also detetc if there was a timejump, and act accordingly */
		1957	inline_speed void
1818	time_update (EV_P_ ev_tstamp max_block)	1958	time_update (EV_P_ ev_tstamp max_block)
1819	{	1959	{
1820	int i;
1821
1822	#if EV_USE_MONOTONIC	1960	#if EV_USE_MONOTONIC
1823	if (expect_true (have_monotonic))	1961	if (expect_true (have_monotonic))
1824	{	1962	{
		1963	int i;
1825	ev_tstamp odiff = rtmn_diff;	1964	ev_tstamp odiff = rtmn_diff;
1826		1965
1827	mn_now = get_clock ();	1966	mn_now = get_clock ();
1828		1967
1829	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	1968	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1855	ev_rt_now = ev_time ();	1994	ev_rt_now = ev_time ();
1856	mn_now = get_clock ();	1995	mn_now = get_clock ();
1857	now_floor = mn_now;	1996	now_floor = mn_now;
1858	}	1997	}
1859		1998
		1999	/* no timer adjustment, as the monotonic clock doesn't jump */
		2000	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1860	# if EV_PERIODIC_ENABLE	2001	# if EV_PERIODIC_ENABLE
1861	periodics_reschedule (EV_A);	2002	periodics_reschedule (EV_A);
1862	# endif	2003	# endif
1863	/* no timer adjustment, as the monotonic clock doesn't jump */
1864	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1865	}	2004	}
1866	else	2005	else
1867	#endif	2006	#endif
1868	{	2007	{
1869	ev_rt_now = ev_time ();	2008	ev_rt_now = ev_time ();
1870		2009
1871	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2010	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1872	{	2011	{
		2012	/* adjust timers. this is easy, as the offset is the same for all of them */
		2013	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1873	#if EV_PERIODIC_ENABLE	2014	#if EV_PERIODIC_ENABLE
1874	periodics_reschedule (EV_A);	2015	periodics_reschedule (EV_A);
1875	#endif	2016	#endif
1876	/* adjust timers. this is easy, as the offset is the same for all of them */
1877	for (i = 0; i < timercnt; ++i)
1878	{
1879	ANHE *he = timers + i + HEAP0;
1880	ANHE_w (*he)->at += ev_rt_now - mn_now;
1881	ANHE_at_cache (*he);
1882	}
1883	}	2017	}
1884		2018
1885	mn_now = ev_rt_now;	2019	mn_now = ev_rt_now;
1886	}	2020	}
1887	}
1888
1889	void
1890	ev_ref (EV_P)
1891	{
1892	++activecnt;
1893	}
1894
1895	void
1896	ev_unref (EV_P)
1897	{
1898	--activecnt;
1899	}	2021	}
1900		2022
1901	static int loop_done;	2023	static int loop_done;
1902		2024
1903	void	2025	void
…		…
1937	{	2059	{
1938	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2060	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1939	call_pending (EV_A);	2061	call_pending (EV_A);
1940	}	2062	}
1941		2063
1942	if (expect_false (!activecnt))
1943	break;
1944
1945	/* we might have forked, so reify kernel state if necessary */	2064	/* we might have forked, so reify kernel state if necessary */
1946	if (expect_false (postfork))	2065	if (expect_false (postfork))
1947	loop_fork (EV_A);	2066	loop_fork (EV_A);
1948		2067
1949	/* update fd-related kernel structures */	2068	/* update fd-related kernel structures */
…		…
2028	ev_unloop (EV_P_ int how)	2147	ev_unloop (EV_P_ int how)
2029	{	2148	{
2030	loop_done = how;	2149	loop_done = how;
2031	}	2150	}
2032		2151
		2152	void
		2153	ev_ref (EV_P)
		2154	{
		2155	++activecnt;
		2156	}
		2157
		2158	void
		2159	ev_unref (EV_P)
		2160	{
		2161	--activecnt;
		2162	}
		2163
		2164	void
		2165	ev_now_update (EV_P)
		2166	{
		2167	time_update (EV_A_ 1e100);
		2168	}
		2169
		2170	void
		2171	ev_suspend (EV_P)
		2172	{
		2173	ev_now_update (EV_A);
		2174	}
		2175
		2176	void
		2177	ev_resume (EV_P)
		2178	{
		2179	ev_tstamp mn_prev = mn_now;
		2180
		2181	ev_now_update (EV_A);
		2182	timers_reschedule (EV_A_ mn_now - mn_prev);
		2183	#if EV_PERIODIC_ENABLE
		2184	/* TODO: really do this? */
		2185	periodics_reschedule (EV_A);
		2186	#endif
		2187	}
		2188
2033	/*****************************************************************************/	2189	/*****************************************************************************/
		2190	/* singly-linked list management, used when the expected list length is short */
2034		2191
2035	void inline_size	2192	inline_size void
2036	wlist_add (WL *head, WL elem)	2193	wlist_add (WL *head, WL elem)
2037	{	2194	{
2038	elem->next = *head;	2195	elem->next = *head;
2039	*head = elem;	2196	*head = elem;
2040	}	2197	}
2041		2198
2042	void inline_size	2199	inline_size void
2043	wlist_del (WL *head, WL elem)	2200	wlist_del (WL *head, WL elem)
2044	{	2201	{
2045	while (*head)	2202	while (*head)
2046	{	2203	{
2047	if (*head == elem)	2204	if (*head == elem)
…		…
2052		2209
2053	head = &(*head)->next;	2210	head = &(*head)->next;
2054	}	2211	}
2055	}	2212	}
2056		2213
2057	void inline_speed	2214	/* internal, faster, version of ev_clear_pending */
		2215	inline_speed void
2058	clear_pending (EV_P_ W w)	2216	clear_pending (EV_P_ W w)
2059	{	2217	{
2060	if (w->pending)	2218	if (w->pending)
2061	{	2219	{
2062	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2220	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2063	w->pending = 0;	2221	w->pending = 0;
2064	}	2222	}
2065	}	2223	}
2066		2224
2067	int	2225	int
…		…
2071	int pending = w_->pending;	2229	int pending = w_->pending;
2072		2230
2073	if (expect_true (pending))	2231	if (expect_true (pending))
2074	{	2232	{
2075	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2233	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2234	p->w = (W)&pending_w;
2076	w_->pending = 0;	2235	w_->pending = 0;
2077	p->w = 0;
2078	return p->events;	2236	return p->events;
2079	}	2237	}
2080	else	2238	else
2081	return 0;	2239	return 0;
2082	}	2240	}
2083		2241
2084	void inline_size	2242	inline_size void
2085	pri_adjust (EV_P_ W w)	2243	pri_adjust (EV_P_ W w)
2086	{	2244	{
2087	int pri = w->priority;	2245	int pri = w->priority;
2088	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2246	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2089	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2247	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2090	w->priority = pri;	2248	w->priority = pri;
2091	}	2249	}
2092		2250
2093	void inline_speed	2251	inline_speed void
2094	ev_start (EV_P_ W w, int active)	2252	ev_start (EV_P_ W w, int active)
2095	{	2253	{
2096	pri_adjust (EV_A_ w);	2254	pri_adjust (EV_A_ w);
2097	w->active = active;	2255	w->active = active;
2098	ev_ref (EV_A);	2256	ev_ref (EV_A);
2099	}	2257	}
2100		2258
2101	void inline_size	2259	inline_size void
2102	ev_stop (EV_P_ W w)	2260	ev_stop (EV_P_ W w)
2103	{	2261	{
2104	ev_unref (EV_A);	2262	ev_unref (EV_A);
2105	w->active = 0;	2263	w->active = 0;
2106	}	2264	}
…		…
2113	int fd = w->fd;	2271	int fd = w->fd;
2114		2272
2115	if (expect_false (ev_is_active (w)))	2273	if (expect_false (ev_is_active (w)))
2116	return;	2274	return;
2117		2275
2118	assert (("ev_io_start called with negative fd", fd >= 0));	2276	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2277	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2119		2278
2120	EV_FREQUENT_CHECK;	2279	EV_FREQUENT_CHECK;
2121		2280
2122	ev_start (EV_A_ (W)w, 1);	2281	ev_start (EV_A_ (W)w, 1);
2123	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2282	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2124	wlist_add (&anfds[fd].head, (WL)w);	2283	wlist_add (&anfds[fd].head, (WL)w);
2125		2284
2126	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2285	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2127	w->events &= ~EV_IOFDSET;	2286	w->events &= ~EV__IOFDSET;
2128		2287
2129	EV_FREQUENT_CHECK;	2288	EV_FREQUENT_CHECK;
2130	}	2289	}
2131		2290
2132	void noinline	2291	void noinline
…		…
2134	{	2293	{
2135	clear_pending (EV_A_ (W)w);	2294	clear_pending (EV_A_ (W)w);
2136	if (expect_false (!ev_is_active (w)))	2295	if (expect_false (!ev_is_active (w)))
2137	return;	2296	return;
2138		2297
2139	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2298	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2140		2299
2141	EV_FREQUENT_CHECK;	2300	EV_FREQUENT_CHECK;
2142		2301
2143	wlist_del (&anfds[w->fd].head, (WL)w);	2302	wlist_del (&anfds[w->fd].head, (WL)w);
2144	ev_stop (EV_A_ (W)w);	2303	ev_stop (EV_A_ (W)w);
…		…
2154	if (expect_false (ev_is_active (w)))	2313	if (expect_false (ev_is_active (w)))
2155	return;	2314	return;
2156		2315
2157	ev_at (w) += mn_now;	2316	ev_at (w) += mn_now;
2158		2317
2159	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2318	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2160		2319
2161	EV_FREQUENT_CHECK;	2320	EV_FREQUENT_CHECK;
2162		2321
2163	++timercnt;	2322	++timercnt;
2164	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2323	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2167	ANHE_at_cache (timers [ev_active (w)]);	2326	ANHE_at_cache (timers [ev_active (w)]);
2168	upheap (timers, ev_active (w));	2327	upheap (timers, ev_active (w));
2169		2328
2170	EV_FREQUENT_CHECK;	2329	EV_FREQUENT_CHECK;
2171		2330
2172	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2331	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2173	}	2332	}
2174		2333
2175	void noinline	2334	void noinline
2176	ev_timer_stop (EV_P_ ev_timer *w)	2335	ev_timer_stop (EV_P_ ev_timer *w)
2177	{	2336	{
…		…
2182	EV_FREQUENT_CHECK;	2341	EV_FREQUENT_CHECK;
2183		2342
2184	{	2343	{
2185	int active = ev_active (w);	2344	int active = ev_active (w);
2186		2345
2187	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2346	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2188		2347
2189	--timercnt;	2348	--timercnt;
2190		2349
2191	if (expect_true (active < timercnt + HEAP0))	2350	if (expect_true (active < timercnt + HEAP0))
2192	{	2351	{
…		…
2236		2395
2237	if (w->reschedule_cb)	2396	if (w->reschedule_cb)
2238	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2397	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2239	else if (w->interval)	2398	else if (w->interval)
2240	{	2399	{
2241	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2400	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2242	/* this formula differs from the one in periodic_reify because we do not always round up */	2401	/* this formula differs from the one in periodic_reify because we do not always round up */
2243	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2402	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2244	}	2403	}
2245	else	2404	else
2246	ev_at (w) = w->offset;	2405	ev_at (w) = w->offset;
…		…
2254	ANHE_at_cache (periodics [ev_active (w)]);	2413	ANHE_at_cache (periodics [ev_active (w)]);
2255	upheap (periodics, ev_active (w));	2414	upheap (periodics, ev_active (w));
2256		2415
2257	EV_FREQUENT_CHECK;	2416	EV_FREQUENT_CHECK;
2258		2417
2259	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2418	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2260	}	2419	}
2261		2420
2262	void noinline	2421	void noinline
2263	ev_periodic_stop (EV_P_ ev_periodic *w)	2422	ev_periodic_stop (EV_P_ ev_periodic *w)
2264	{	2423	{
…		…
2269	EV_FREQUENT_CHECK;	2428	EV_FREQUENT_CHECK;
2270		2429
2271	{	2430	{
2272	int active = ev_active (w);	2431	int active = ev_active (w);
2273		2432
2274	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2433	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2275		2434
2276	--periodiccnt;	2435	--periodiccnt;
2277		2436
2278	if (expect_true (active < periodiccnt + HEAP0))	2437	if (expect_true (active < periodiccnt + HEAP0))
2279	{	2438	{
…		…
2302		2461
2303	void noinline	2462	void noinline
2304	ev_signal_start (EV_P_ ev_signal *w)	2463	ev_signal_start (EV_P_ ev_signal *w)
2305	{	2464	{
2306	#if EV_MULTIPLICITY	2465	#if EV_MULTIPLICITY
2307	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2466	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2308	#endif	2467	#endif
2309	if (expect_false (ev_is_active (w)))	2468	if (expect_false (ev_is_active (w)))
2310	return;	2469	return;
2311		2470
2312	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2471	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2313		2472
2314	evpipe_init (EV_A);	2473	evpipe_init (EV_A);
2315		2474
2316	EV_FREQUENT_CHECK;	2475	EV_FREQUENT_CHECK;
2317		2476
…		…
2320	sigset_t full, prev;	2479	sigset_t full, prev;
2321	sigfillset (&full);	2480	sigfillset (&full);
2322	sigprocmask (SIG_SETMASK, &full, &prev);	2481	sigprocmask (SIG_SETMASK, &full, &prev);
2323	#endif	2482	#endif
2324		2483
2325	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2484	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2326		2485
2327	#ifndef _WIN32	2486	#ifndef _WIN32
2328	sigprocmask (SIG_SETMASK, &prev, 0);	2487	sigprocmask (SIG_SETMASK, &prev, 0);
2329	#endif	2488	#endif
2330	}	2489	}
…		…
2368		2527
2369	void	2528	void
2370	ev_child_start (EV_P_ ev_child *w)	2529	ev_child_start (EV_P_ ev_child *w)
2371	{	2530	{
2372	#if EV_MULTIPLICITY	2531	#if EV_MULTIPLICITY
2373	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2532	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2374	#endif	2533	#endif
2375	if (expect_false (ev_is_active (w)))	2534	if (expect_false (ev_is_active (w)))
2376	return;	2535	return;
2377		2536
2378	EV_FREQUENT_CHECK;	2537	EV_FREQUENT_CHECK;
…		…
2403	# ifdef _WIN32	2562	# ifdef _WIN32
2404	# undef lstat	2563	# undef lstat
2405	# define lstat(a,b) _stati64 (a,b)	2564	# define lstat(a,b) _stati64 (a,b)
2406	# endif	2565	# endif
2407		2566
2408	#define DEF_STAT_INTERVAL 5.0074891	2567	#define DEF_STAT_INTERVAL 5.0074891
		2568	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2409	#define MIN_STAT_INTERVAL 0.1074891	2569	#define MIN_STAT_INTERVAL 0.1074891
2410		2570
2411	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2571	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2412		2572
2413	#if EV_USE_INOTIFY	2573	#if EV_USE_INOTIFY
2414	# define EV_INOTIFY_BUFSIZE 8192	2574	# define EV_INOTIFY_BUFSIZE 8192
…		…
2418	{	2578	{
2419	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);	2579	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);
2420		2580
2421	if (w->wd < 0)	2581	if (w->wd < 0)
2422	{	2582	{
		2583	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2423	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2584	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2424		2585
2425	/* monitor some parent directory for speedup hints */	2586	/* monitor some parent directory for speedup hints */
2426	/* note that exceeding the hardcoded limit is not a correctness issue, */	2587	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2427	/* but an efficiency issue only */	2588	/* but an efficiency issue only */
2428	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2589	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2429	{	2590	{
2430	char path [4096];	2591	char path [4096];
2431	strcpy (path, w->path);	2592	strcpy (path, w->path);
…		…
2435	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2596	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2436	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2597	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2437		2598
2438	char *pend = strrchr (path, '/');	2599	char *pend = strrchr (path, '/');
2439		2600
2440	if (!pend)	2601	if (!pend || pend == path)
2441	break; /* whoops, no '/', complain to your admin */	2602	break;
2442		2603
2443	*pend = 0;	2604	*pend = 0;
2444	w->wd = inotify_add_watch (fs_fd, path, mask);	2605	w->wd = inotify_add_watch (fs_fd, path, mask);
2445	}	2606	}
2446	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2607	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2447	}	2608	}
2448	}	2609	}
2449	else
2450	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2451		2610
2452	if (w->wd >= 0)	2611	if (w->wd >= 0)
		2612	{
2453	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2613	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2614
		2615	/* now local changes will be tracked by inotify, but remote changes won't */
		2616	/* unless the filesystem it known to be local, we therefore still poll */
		2617	/* also do poll on <2.6.25, but with normal frequency */
		2618	struct statfs sfs;
		2619
		2620	if (fs_2625 && !statfs (w->path, &sfs))
		2621	if (sfs.f_type == 0x1373 /* devfs */
		2622	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2623	|| sfs.f_type == 0x3153464a /* jfs */
		2624	|| sfs.f_type == 0x52654973 /* reiser3 */
		2625	|| sfs.f_type == 0x01021994 /* tempfs */
		2626	|| sfs.f_type == 0x58465342 /* xfs */)
		2627	return;
		2628
		2629	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2630	ev_timer_again (EV_A_ &w->timer);
		2631	}
2454	}	2632	}
2455		2633
2456	static void noinline	2634	static void noinline
2457	infy_del (EV_P_ ev_stat *w)	2635	infy_del (EV_P_ ev_stat *w)
2458	{	2636	{
…		…
2472		2650
2473	static void noinline	2651	static void noinline
2474	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2652	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2475	{	2653	{
2476	if (slot < 0)	2654	if (slot < 0)
2477	/* overflow, need to check for all hahs slots */	2655	/* overflow, need to check for all hash slots */
2478	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2656	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2479	infy_wd (EV_A_ slot, wd, ev);	2657	infy_wd (EV_A_ slot, wd, ev);
2480	else	2658	else
2481	{	2659	{
2482	WL w_;	2660	WL w_;
…		…
2488		2666
2489	if (w->wd == wd || wd == -1)	2667	if (w->wd == wd || wd == -1)
2490	{	2668	{
2491	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2669	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2492	{	2670	{
		2671	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2493	w->wd = -1;	2672	w->wd = -1;
2494	infy_add (EV_A_ w); /* re-add, no matter what */	2673	infy_add (EV_A_ w); /* re-add, no matter what */
2495	}	2674	}
2496		2675
2497	stat_timer_cb (EV_A_ &w->timer, 0);	2676	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2510		2689
2511	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2690	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2512	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2691	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2513	}	2692	}
2514		2693
2515	void inline_size	2694	inline_size void
		2695	check_2625 (EV_P)
		2696	{
		2697	/* kernels < 2.6.25 are borked
		2698	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2699	*/
		2700	struct utsname buf;
		2701	int major, minor, micro;
		2702
		2703	if (uname (&buf))
		2704	return;
		2705
		2706	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2707	return;
		2708
		2709	if (major < 2
		2710	|| (major == 2 && minor < 6)
		2711	|| (major == 2 && minor == 6 && micro < 25))
		2712	return;
		2713
		2714	fs_2625 = 1;
		2715	}
		2716
		2717	inline_size void
2516	infy_init (EV_P)	2718	infy_init (EV_P)
2517	{	2719	{
2518	if (fs_fd != -2)	2720	if (fs_fd != -2)
2519	return;	2721	return;
		2722
		2723	fs_fd = -1;
		2724
		2725	check_2625 (EV_A);
2520		2726
2521	fs_fd = inotify_init ();	2727	fs_fd = inotify_init ();
2522		2728
2523	if (fs_fd >= 0)	2729	if (fs_fd >= 0)
2524	{	2730	{
…		…
2526	ev_set_priority (&fs_w, EV_MAXPRI);	2732	ev_set_priority (&fs_w, EV_MAXPRI);
2527	ev_io_start (EV_A_ &fs_w);	2733	ev_io_start (EV_A_ &fs_w);
2528	}	2734	}
2529	}	2735	}
2530		2736
2531	void inline_size	2737	inline_size void
2532	infy_fork (EV_P)	2738	infy_fork (EV_P)
2533	{	2739	{
2534	int slot;	2740	int slot;
2535		2741
2536	if (fs_fd < 0)	2742	if (fs_fd < 0)
…		…
2552	w->wd = -1;	2758	w->wd = -1;
2553		2759
2554	if (fs_fd >= 0)	2760	if (fs_fd >= 0)
2555	infy_add (EV_A_ w); /* re-add, no matter what */	2761	infy_add (EV_A_ w); /* re-add, no matter what */
2556	else	2762	else
2557	ev_timer_start (EV_A_ &w->timer);	2763	ev_timer_again (EV_A_ &w->timer);
2558	}	2764	}
2559
2560	}	2765	}
2561	}	2766	}
2562		2767
		2768	#endif
		2769
		2770	#ifdef _WIN32
		2771	# define EV_LSTAT(p,b) _stati64 (p, b)
		2772	#else
		2773	# define EV_LSTAT(p,b) lstat (p, b)
2563	#endif	2774	#endif
2564		2775
2565	void	2776	void
2566	ev_stat_stat (EV_P_ ev_stat *w)	2777	ev_stat_stat (EV_P_ ev_stat *w)
2567	{	2778	{
…		…
2594	|| w->prev.st_atime != w->attr.st_atime	2805	|| w->prev.st_atime != w->attr.st_atime
2595	|| w->prev.st_mtime != w->attr.st_mtime	2806	|| w->prev.st_mtime != w->attr.st_mtime
2596	|| w->prev.st_ctime != w->attr.st_ctime	2807	|| w->prev.st_ctime != w->attr.st_ctime
2597	) {	2808	) {
2598	#if EV_USE_INOTIFY	2809	#if EV_USE_INOTIFY
		2810	if (fs_fd >= 0)
		2811	{
2599	infy_del (EV_A_ w);	2812	infy_del (EV_A_ w);
2600	infy_add (EV_A_ w);	2813	infy_add (EV_A_ w);
2601	ev_stat_stat (EV_A_ w); /* avoid race... */	2814	ev_stat_stat (EV_A_ w); /* avoid race... */
		2815	}
2602	#endif	2816	#endif
2603		2817
2604	ev_feed_event (EV_A_ w, EV_STAT);	2818	ev_feed_event (EV_A_ w, EV_STAT);
2605	}	2819	}
2606	}	2820	}
…		…
2609	ev_stat_start (EV_P_ ev_stat *w)	2823	ev_stat_start (EV_P_ ev_stat *w)
2610	{	2824	{
2611	if (expect_false (ev_is_active (w)))	2825	if (expect_false (ev_is_active (w)))
2612	return;	2826	return;
2613		2827
2614	/* since we use memcmp, we need to clear any padding data etc. */
2615	memset (&w->prev, 0, sizeof (ev_statdata));
2616	memset (&w->attr, 0, sizeof (ev_statdata));
2617
2618	ev_stat_stat (EV_A_ w);	2828	ev_stat_stat (EV_A_ w);
2619		2829
		2830	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2620	if (w->interval < MIN_STAT_INTERVAL)	2831	w->interval = MIN_STAT_INTERVAL;
2621	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2622		2832
2623	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2833	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2624	ev_set_priority (&w->timer, ev_priority (w));	2834	ev_set_priority (&w->timer, ev_priority (w));
2625		2835
2626	#if EV_USE_INOTIFY	2836	#if EV_USE_INOTIFY
2627	infy_init (EV_A);	2837	infy_init (EV_A);
2628		2838
2629	if (fs_fd >= 0)	2839	if (fs_fd >= 0)
2630	infy_add (EV_A_ w);	2840	infy_add (EV_A_ w);
2631	else	2841	else
2632	#endif	2842	#endif
2633	ev_timer_start (EV_A_ &w->timer);	2843	ev_timer_again (EV_A_ &w->timer);
2634		2844
2635	ev_start (EV_A_ (W)w, 1);	2845	ev_start (EV_A_ (W)w, 1);
2636		2846
2637	EV_FREQUENT_CHECK;	2847	EV_FREQUENT_CHECK;
2638	}	2848	}
…		…
2808	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3018	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2809	}	3019	}
2810	}	3020	}
2811	}	3021	}
2812		3022
		3023	static void
		3024	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3025	{
		3026	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3027
		3028	ev_embed_stop (EV_A_ w);
		3029
		3030	{
		3031	struct ev_loop *loop = w->other;
		3032
		3033	ev_loop_fork (EV_A);
		3034	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3035	}
		3036
		3037	ev_embed_start (EV_A_ w);
		3038	}
		3039
2813	#if 0	3040	#if 0
2814	static void	3041	static void
2815	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3042	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2816	{	3043	{
2817	ev_idle_stop (EV_A_ idle);	3044	ev_idle_stop (EV_A_ idle);
…		…
2824	if (expect_false (ev_is_active (w)))	3051	if (expect_false (ev_is_active (w)))
2825	return;	3052	return;
2826		3053
2827	{	3054	{
2828	struct ev_loop *loop = w->other;	3055	struct ev_loop *loop = w->other;
2829	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3056	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2830	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3057	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2831	}	3058	}
2832		3059
2833	EV_FREQUENT_CHECK;	3060	EV_FREQUENT_CHECK;
2834		3061
…		…
2837		3064
2838	ev_prepare_init (&w->prepare, embed_prepare_cb);	3065	ev_prepare_init (&w->prepare, embed_prepare_cb);
2839	ev_set_priority (&w->prepare, EV_MINPRI);	3066	ev_set_priority (&w->prepare, EV_MINPRI);
2840	ev_prepare_start (EV_A_ &w->prepare);	3067	ev_prepare_start (EV_A_ &w->prepare);
2841		3068
		3069	ev_fork_init (&w->fork, embed_fork_cb);
		3070	ev_fork_start (EV_A_ &w->fork);
		3071
2842	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3072	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2843		3073
2844	ev_start (EV_A_ (W)w, 1);	3074	ev_start (EV_A_ (W)w, 1);
2845		3075
2846	EV_FREQUENT_CHECK;	3076	EV_FREQUENT_CHECK;
…		…
2853	if (expect_false (!ev_is_active (w)))	3083	if (expect_false (!ev_is_active (w)))
2854	return;	3084	return;
2855		3085
2856	EV_FREQUENT_CHECK;	3086	EV_FREQUENT_CHECK;
2857		3087
2858	ev_io_stop (EV_A_ &w->io);	3088	ev_io_stop (EV_A_ &w->io);
2859	ev_prepare_stop (EV_A_ &w->prepare);	3089	ev_prepare_stop (EV_A_ &w->prepare);
2860		3090	ev_fork_stop (EV_A_ &w->fork);
2861	ev_stop (EV_A_ (W)w);
2862		3091
2863	EV_FREQUENT_CHECK;	3092	EV_FREQUENT_CHECK;
2864	}	3093	}
2865	#endif	3094	#endif
2866		3095
…		…
2963	once_cb (EV_P_ struct ev_once *once, int revents)	3192	once_cb (EV_P_ struct ev_once *once, int revents)
2964	{	3193	{
2965	void (*cb)(int revents, void *arg) = once->cb;	3194	void (*cb)(int revents, void *arg) = once->cb;
2966	void *arg = once->arg;	3195	void *arg = once->arg;
2967		3196
2968	ev_io_stop (EV_A_ &once->io);	3197	ev_io_stop (EV_A_ &once->io);
2969	ev_timer_stop (EV_A_ &once->to);	3198	ev_timer_stop (EV_A_ &once->to);
2970	ev_free (once);	3199	ev_free (once);
2971		3200
2972	cb (revents, arg);	3201	cb (revents, arg);
2973	}	3202	}
2974		3203
2975	static void	3204	static void
2976	once_cb_io (EV_P_ ev_io *w, int revents)	3205	once_cb_io (EV_P_ ev_io *w, int revents)
2977	{	3206	{
2978	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3207	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3208
		3209	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2979	}	3210	}
2980		3211
2981	static void	3212	static void
2982	once_cb_to (EV_P_ ev_timer *w, int revents)	3213	once_cb_to (EV_P_ ev_timer *w, int revents)
2983	{	3214	{
2984	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3215	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3216
		3217	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2985	}	3218	}
2986		3219
2987	void	3220	void
2988	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3221	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2989	{	3222	{
…		…
3011	ev_timer_set (&once->to, timeout, 0.);	3244	ev_timer_set (&once->to, timeout, 0.);
3012	ev_timer_start (EV_A_ &once->to);	3245	ev_timer_start (EV_A_ &once->to);
3013	}	3246	}
3014	}	3247	}
3015		3248
		3249	/*****************************************************************************/
		3250
		3251	#if EV_WALK_ENABLE
		3252	void
		3253	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3254	{
		3255	int i, j;
		3256	ev_watcher_list *wl, *wn;
		3257
		3258	if (types & (EV_IO | EV_EMBED))
		3259	for (i = 0; i < anfdmax; ++i)
		3260	for (wl = anfds [i].head; wl; )
		3261	{
		3262	wn = wl->next;
		3263
		3264	#if EV_EMBED_ENABLE
		3265	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3266	{
		3267	if (types & EV_EMBED)
		3268	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3269	}
		3270	else
		3271	#endif
		3272	#if EV_USE_INOTIFY
		3273	if (ev_cb ((ev_io *)wl) == infy_cb)
		3274	;
		3275	else
		3276	#endif
		3277	if ((ev_io *)wl != &pipe_w)
		3278	if (types & EV_IO)
		3279	cb (EV_A_ EV_IO, wl);
		3280
		3281	wl = wn;
		3282	}
		3283
		3284	if (types & (EV_TIMER | EV_STAT))
		3285	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3286	#if EV_STAT_ENABLE
		3287	/*TODO: timer is not always active*/
		3288	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3289	{
		3290	if (types & EV_STAT)
		3291	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3292	}
		3293	else
		3294	#endif
		3295	if (types & EV_TIMER)
		3296	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3297
		3298	#if EV_PERIODIC_ENABLE
		3299	if (types & EV_PERIODIC)
		3300	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3301	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3302	#endif
		3303
		3304	#if EV_IDLE_ENABLE
		3305	if (types & EV_IDLE)
		3306	for (j = NUMPRI; i--; )
		3307	for (i = idlecnt [j]; i--; )
		3308	cb (EV_A_ EV_IDLE, idles [j][i]);
		3309	#endif
		3310
		3311	#if EV_FORK_ENABLE
		3312	if (types & EV_FORK)
		3313	for (i = forkcnt; i--; )
		3314	if (ev_cb (forks [i]) != embed_fork_cb)
		3315	cb (EV_A_ EV_FORK, forks [i]);
		3316	#endif
		3317
		3318	#if EV_ASYNC_ENABLE
		3319	if (types & EV_ASYNC)
		3320	for (i = asynccnt; i--; )
		3321	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3322	#endif
		3323
		3324	if (types & EV_PREPARE)
		3325	for (i = preparecnt; i--; )
		3326	#if EV_EMBED_ENABLE
		3327	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3328	#endif
		3329	cb (EV_A_ EV_PREPARE, prepares [i]);
		3330
		3331	if (types & EV_CHECK)
		3332	for (i = checkcnt; i--; )
		3333	cb (EV_A_ EV_CHECK, checks [i]);
		3334
		3335	if (types & EV_SIGNAL)
		3336	for (i = 0; i < signalmax; ++i)
		3337	for (wl = signals [i].head; wl; )
		3338	{
		3339	wn = wl->next;
		3340	cb (EV_A_ EV_SIGNAL, wl);
		3341	wl = wn;
		3342	}
		3343
		3344	if (types & EV_CHILD)
		3345	for (i = EV_PID_HASHSIZE; i--; )
		3346	for (wl = childs [i]; wl; )
		3347	{
		3348	wn = wl->next;
		3349	cb (EV_A_ EV_CHILD, wl);
		3350	wl = wn;
		3351	}
		3352	/* EV_STAT 0x00001000 /* stat data changed */
		3353	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3354	}
		3355	#endif
		3356
3016	#if EV_MULTIPLICITY	3357	#if EV_MULTIPLICITY
3017	#include "ev_wrap.h"	3358	#include "ev_wrap.h"
3018	#endif	3359	#endif
3019		3360
3020	#ifdef __cplusplus	3361	#ifdef __cplusplus

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