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Comparing libev/ev.c (file contents):
Revision 1.252 by root, Thu May 22 03:43:32 2008 UTC vs.
Revision 1.294 by root, Wed Jul 8 02:46:05 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
…		…
253		284
254	#ifndef EV_HEAP_CACHE_AT	285	#ifndef EV_HEAP_CACHE_AT
255	# define EV_HEAP_CACHE_AT !EV_MINIMAL	286	# define EV_HEAP_CACHE_AT !EV_MINIMAL
256	#endif	287	#endif
257		288
		289	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		290	/* which makes programs even slower. might work on other unices, too. */
		291	#if EV_USE_CLOCK_SYSCALL
		292	# include <syscall.h>
		293	# ifdef SYS_clock_gettime
		294	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		295	# undef EV_USE_MONOTONIC
		296	# define EV_USE_MONOTONIC 1
		297	# else
		298	# undef EV_USE_CLOCK_SYSCALL
		299	# define EV_USE_CLOCK_SYSCALL 0
		300	# endif
		301	#endif
		302
258	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	303	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
259		304
260	#ifndef CLOCK_MONOTONIC	305	#ifndef CLOCK_MONOTONIC
261	# undef EV_USE_MONOTONIC	306	# undef EV_USE_MONOTONIC
262	# define EV_USE_MONOTONIC 0	307	# define EV_USE_MONOTONIC 0
…		…
277	# include <sys/select.h>	322	# include <sys/select.h>
278	# endif	323	# endif
279	#endif	324	#endif
280		325
281	#if EV_USE_INOTIFY	326	#if EV_USE_INOTIFY
		327	# include <sys/utsname.h>
		328	# include <sys/statfs.h>
282	# include <sys/inotify.h>	329	# include <sys/inotify.h>
		330	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		331	# ifndef IN_DONT_FOLLOW
		332	# undef EV_USE_INOTIFY
		333	# define EV_USE_INOTIFY 0
		334	# endif
283	#endif	335	#endif
284		336
285	#if EV_SELECT_IS_WINSOCKET	337	#if EV_SELECT_IS_WINSOCKET
286	# include <winsock.h>	338	# include <winsock.h>
287	#endif	339	#endif
…		…
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)
…		…
499		564
500	#endif	565	#endif
501		566
502	/*****************************************************************************/	567	/*****************************************************************************/
503		568
		569	#ifndef EV_HAVE_EV_TIME
504	ev_tstamp	570	ev_tstamp
505	ev_time (void)	571	ev_time (void)
506	{	572	{
507	#if EV_USE_REALTIME	573	#if EV_USE_REALTIME
		574	if (expect_true (have_realtime))
		575	{
508	struct timespec ts;	576	struct timespec ts;
509	clock_gettime (CLOCK_REALTIME, &ts);	577	clock_gettime (CLOCK_REALTIME, &ts);
510	return ts.tv_sec + ts.tv_nsec * 1e-9;	578	return ts.tv_sec + ts.tv_nsec * 1e-9;
511	#else	579	}
		580	#endif
		581
512	struct timeval tv;	582	struct timeval tv;
513	gettimeofday (&tv, 0);	583	gettimeofday (&tv, 0);
514	return tv.tv_sec + tv.tv_usec * 1e-6;	584	return tv.tv_sec + tv.tv_usec * 1e-6;
515	#endif
516	}	585	}
		586	#endif
517		587
518	ev_tstamp inline_size	588	inline_size ev_tstamp
519	get_clock (void)	589	get_clock (void)
520	{	590	{
521	#if EV_USE_MONOTONIC	591	#if EV_USE_MONOTONIC
522	if (expect_true (have_monotonic))	592	if (expect_true (have_monotonic))
523	{	593	{
…		…
556	struct timeval tv;	626	struct timeval tv;
557		627
558	tv.tv_sec = (time_t)delay;	628	tv.tv_sec = (time_t)delay;
559	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	629	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560		630
		631	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		632	/* somehting not guaranteed by newer posix versions, but guaranteed */
		633	/* by older ones */
561	select (0, 0, 0, 0, &tv);	634	select (0, 0, 0, 0, &tv);
562	#endif	635	#endif
563	}	636	}
564	}	637	}
565		638
566	/*****************************************************************************/	639	/*****************************************************************************/
567		640
568	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	641	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
569		642
570	int inline_size	643	/* find a suitable new size for the given array, */
		644	/* hopefully by rounding to a ncie-to-malloc size */
		645	inline_size int
571	array_nextsize (int elem, int cur, int cnt)	646	array_nextsize (int elem, int cur, int cnt)
572	{	647	{
573	int ncur = cur + 1;	648	int ncur = cur + 1;
574		649
575	do	650	do
…		…
592	array_realloc (int elem, void *base, int *cur, int cnt)	667	array_realloc (int elem, void *base, int *cur, int cnt)
593	{	668	{
594	*cur = array_nextsize (elem, *cur, cnt);	669	*cur = array_nextsize (elem, *cur, cnt);
595	return ev_realloc (base, elem * *cur);	670	return ev_realloc (base, elem * *cur);
596	}	671	}
		672
		673	#define array_init_zero(base,count) \
		674	memset ((void *)(base), 0, sizeof (*(base)) * (count))
597		675
598	#define array_needsize(type,base,cur,cnt,init) \	676	#define array_needsize(type,base,cur,cnt,init) \
599	if (expect_false ((cnt) > (cur))) \	677	if (expect_false ((cnt) > (cur))) \
600	{ \	678	{ \
601	int ocur_ = (cur); \	679	int ocur_ = (cur); \
…		…
613	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	691	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614	}	692	}
615	#endif	693	#endif
616		694
617	#define array_free(stem, idx) \	695	#define array_free(stem, idx) \
618	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	696	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
619		697
620	/*****************************************************************************/	698	/*****************************************************************************/
		699
		700	/* dummy callback for pending events */
		701	static void noinline
		702	pendingcb (EV_P_ ev_prepare *w, int revents)
		703	{
		704	}
621		705
622	void noinline	706	void noinline
623	ev_feed_event (EV_P_ void *w, int revents)	707	ev_feed_event (EV_P_ void *w, int revents)
624	{	708	{
625	W w_ = (W)w;	709	W w_ = (W)w;
…		…
634	pendings [pri][w_->pending - 1].w = w_;	718	pendings [pri][w_->pending - 1].w = w_;
635	pendings [pri][w_->pending - 1].events = revents;	719	pendings [pri][w_->pending - 1].events = revents;
636	}	720	}
637	}	721	}
638		722
639	void inline_speed	723	inline_speed void
		724	feed_reverse (EV_P_ W w)
		725	{
		726	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		727	rfeeds [rfeedcnt++] = w;
		728	}
		729
		730	inline_size void
		731	feed_reverse_done (EV_P_ int revents)
		732	{
		733	do
		734	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		735	while (rfeedcnt);
		736	}
		737
		738	inline_speed void
640	queue_events (EV_P_ W *events, int eventcnt, int type)	739	queue_events (EV_P_ W *events, int eventcnt, int type)
641	{	740	{
642	int i;	741	int i;
643		742
644	for (i = 0; i < eventcnt; ++i)	743	for (i = 0; i < eventcnt; ++i)
645	ev_feed_event (EV_A_ events [i], type);	744	ev_feed_event (EV_A_ events [i], type);
646	}	745	}
647		746
648	/*****************************************************************************/	747	/*****************************************************************************/
649		748
650	void inline_size	749	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)	750	fd_event (EV_P_ int fd, int revents)
665	{	751	{
666	ANFD *anfd = anfds + fd;	752	ANFD *anfd = anfds + fd;
667	ev_io *w;	753	ev_io *w;
668		754
…		…
680	{	766	{
681	if (fd >= 0 && fd < anfdmax)	767	if (fd >= 0 && fd < anfdmax)
682	fd_event (EV_A_ fd, revents);	768	fd_event (EV_A_ fd, revents);
683	}	769	}
684		770
685	void inline_size	771	/* make sure the external fd watch events are in-sync */
		772	/* with the kernel/libev internal state */
		773	inline_size void
686	fd_reify (EV_P)	774	fd_reify (EV_P)
687	{	775	{
688	int i;	776	int i;
689		777
690	for (i = 0; i < fdchangecnt; ++i)	778	for (i = 0; i < fdchangecnt; ++i)
…		…
699	events |= (unsigned char)w->events;	787	events |= (unsigned char)w->events;
700		788
701	#if EV_SELECT_IS_WINSOCKET	789	#if EV_SELECT_IS_WINSOCKET
702	if (events)	790	if (events)
703	{	791	{
704	unsigned long argp;	792	unsigned long arg;
705	#ifdef EV_FD_TO_WIN32_HANDLE	793	#ifdef EV_FD_TO_WIN32_HANDLE
706	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	794	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707	#else	795	#else
708	anfd->handle = _get_osfhandle (fd);	796	anfd->handle = _get_osfhandle (fd);
709	#endif	797	#endif
710	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	798	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
711	}	799	}
712	#endif	800	#endif
713		801
714	{	802	{
715	unsigned char o_events = anfd->events;	803	unsigned char o_events = anfd->events;
716	unsigned char o_reify = anfd->reify;	804	unsigned char o_reify = anfd->reify;
717		805
718	anfd->reify = 0;	806	anfd->reify = 0;
719	anfd->events = events;	807	anfd->events = events;
720		808
721	if (o_events != events || o_reify & EV_IOFDSET)	809	if (o_events != events || o_reify & EV__IOFDSET)
722	backend_modify (EV_A_ fd, o_events, events);	810	backend_modify (EV_A_ fd, o_events, events);
723	}	811	}
724	}	812	}
725		813
726	fdchangecnt = 0;	814	fdchangecnt = 0;
727	}	815	}
728		816
729	void inline_size	817	/* something about the given fd changed */
		818	inline_size void
730	fd_change (EV_P_ int fd, int flags)	819	fd_change (EV_P_ int fd, int flags)
731	{	820	{
732	unsigned char reify = anfds [fd].reify;	821	unsigned char reify = anfds [fd].reify;
733	anfds [fd].reify |= flags;	822	anfds [fd].reify |= flags;
734		823
…		…
738	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	827	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739	fdchanges [fdchangecnt - 1] = fd;	828	fdchanges [fdchangecnt - 1] = fd;
740	}	829	}
741	}	830	}
742		831
743	void inline_speed	832	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		833	inline_speed void
744	fd_kill (EV_P_ int fd)	834	fd_kill (EV_P_ int fd)
745	{	835	{
746	ev_io *w;	836	ev_io *w;
747		837
748	while ((w = (ev_io *)anfds [fd].head))	838	while ((w = (ev_io *)anfds [fd].head))
…		…
750	ev_io_stop (EV_A_ w);	840	ev_io_stop (EV_A_ w);
751	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	841	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
752	}	842	}
753	}	843	}
754		844
755	int inline_size	845	/* check whether the given fd is atcually valid, for error recovery */
		846	inline_size int
756	fd_valid (int fd)	847	fd_valid (int fd)
757	{	848	{
758	#ifdef _WIN32	849	#ifdef _WIN32
759	return _get_osfhandle (fd) != -1;	850	return _get_osfhandle (fd) != -1;
760	#else	851	#else
…		…
768	{	859	{
769	int fd;	860	int fd;
770		861
771	for (fd = 0; fd < anfdmax; ++fd)	862	for (fd = 0; fd < anfdmax; ++fd)
772	if (anfds [fd].events)	863	if (anfds [fd].events)
773	if (!fd_valid (fd) == -1 && errno == EBADF)	864	if (!fd_valid (fd) && errno == EBADF)
774	fd_kill (EV_A_ fd);	865	fd_kill (EV_A_ fd);
775	}	866	}
776		867
777	/* called on ENOMEM in select/poll to kill some fds and retry */	868	/* called on ENOMEM in select/poll to kill some fds and retry */
778	static void noinline	869	static void noinline
…		…
796		887
797	for (fd = 0; fd < anfdmax; ++fd)	888	for (fd = 0; fd < anfdmax; ++fd)
798	if (anfds [fd].events)	889	if (anfds [fd].events)
799	{	890	{
800	anfds [fd].events = 0;	891	anfds [fd].events = 0;
		892	anfds [fd].emask = 0;
801	fd_change (EV_A_ fd, EV_IOFDSET | 1);	893	fd_change (EV_A_ fd, EV__IOFDSET | 1);
802	}	894	}
803	}	895	}
804		896
805	/*****************************************************************************/	897	/*****************************************************************************/
806		898
…		…
822	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	914	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	915	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824	#define UPHEAP_DONE(p,k) ((p) == (k))	916	#define UPHEAP_DONE(p,k) ((p) == (k))
825		917
826	/* away from the root */	918	/* away from the root */
827	void inline_speed	919	inline_speed void
828	downheap (ANHE *heap, int N, int k)	920	downheap (ANHE *heap, int N, int k)
829	{	921	{
830	ANHE he = heap [k];	922	ANHE he = heap [k];
831	ANHE *E = heap + N + HEAP0;	923	ANHE *E = heap + N + HEAP0;
832		924
…		…
872	#define HEAP0 1	964	#define HEAP0 1
873	#define HPARENT(k) ((k) >> 1)	965	#define HPARENT(k) ((k) >> 1)
874	#define UPHEAP_DONE(p,k) (!(p))	966	#define UPHEAP_DONE(p,k) (!(p))
875		967
876	/* away from the root */	968	/* away from the root */
877	void inline_speed	969	inline_speed void
878	downheap (ANHE *heap, int N, int k)	970	downheap (ANHE *heap, int N, int k)
879	{	971	{
880	ANHE he = heap [k];	972	ANHE he = heap [k];
881		973
882	for (;;)	974	for (;;)
…		…
902	ev_active (ANHE_w (he)) = k;	994	ev_active (ANHE_w (he)) = k;
903	}	995	}
904	#endif	996	#endif
905		997
906	/* towards the root */	998	/* towards the root */
907	void inline_speed	999	inline_speed void
908	upheap (ANHE *heap, int k)	1000	upheap (ANHE *heap, int k)
909	{	1001	{
910	ANHE he = heap [k];	1002	ANHE he = heap [k];
911		1003
912	for (;;)	1004	for (;;)
…		…
923		1015
924	heap [k] = he;	1016	heap [k] = he;
925	ev_active (ANHE_w (he)) = k;	1017	ev_active (ANHE_w (he)) = k;
926	}	1018	}
927		1019
928	void inline_size	1020	/* move an element suitably so it is in a correct place */
		1021	inline_size void
929	adjustheap (ANHE *heap, int N, int k)	1022	adjustheap (ANHE *heap, int N, int k)
930	{	1023	{
931	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1024	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
932	upheap (heap, k);	1025	upheap (heap, k);
933	else	1026	else
934	downheap (heap, N, k);	1027	downheap (heap, N, k);
935	}	1028	}
936		1029
937	/* rebuild the heap: this function is used only once and executed rarely */	1030	/* rebuild the heap: this function is used only once and executed rarely */
938	void inline_size	1031	inline_size void
939	reheap (ANHE *heap, int N)	1032	reheap (ANHE *heap, int N)
940	{	1033	{
941	int i;	1034	int i;
942		1035
943	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1036	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
946	upheap (heap, i + HEAP0);	1039	upheap (heap, i + HEAP0);
947	}	1040	}
948		1041
949	/*****************************************************************************/	1042	/*****************************************************************************/
950		1043
		1044	/* associate signal watchers to a signal signal */
951	typedef struct	1045	typedef struct
952	{	1046	{
953	WL head;	1047	WL head;
954	EV_ATOMIC_T gotsig;	1048	EV_ATOMIC_T gotsig;
955	} ANSIG;	1049	} ANSIG;
…		…
957	static ANSIG *signals;	1051	static ANSIG *signals;
958	static int signalmax;	1052	static int signalmax;
959		1053
960	static EV_ATOMIC_T gotsig;	1054	static EV_ATOMIC_T gotsig;
961		1055
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	/*****************************************************************************/	1056	/*****************************************************************************/
975		1057
976	void inline_speed	1058	/* used to prepare libev internal fd's */
		1059	/* this is not fork-safe */
		1060	inline_speed void
977	fd_intern (int fd)	1061	fd_intern (int fd)
978	{	1062	{
979	#ifdef _WIN32	1063	#ifdef _WIN32
980	int arg = 1;	1064	unsigned long arg = 1;
981	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1065	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
982	#else	1066	#else
983	fcntl (fd, F_SETFD, FD_CLOEXEC);	1067	fcntl (fd, F_SETFD, FD_CLOEXEC);
984	fcntl (fd, F_SETFL, O_NONBLOCK);	1068	fcntl (fd, F_SETFL, O_NONBLOCK);
985	#endif	1069	#endif
986	}	1070	}
987		1071
988	static void noinline	1072	static void noinline
989	evpipe_init (EV_P)	1073	evpipe_init (EV_P)
990	{	1074	{
991	if (!ev_is_active (&pipeev))	1075	if (!ev_is_active (&pipe_w))
992	{	1076	{
993	#if EV_USE_EVENTFD	1077	#if EV_USE_EVENTFD
994	if ((evfd = eventfd (0, 0)) >= 0)	1078	if ((evfd = eventfd (0, 0)) >= 0)
995	{	1079	{
996	evpipe [0] = -1;	1080	evpipe [0] = -1;
997	fd_intern (evfd);	1081	fd_intern (evfd);
998	ev_io_set (&pipeev, evfd, EV_READ);	1082	ev_io_set (&pipe_w, evfd, EV_READ);
999	}	1083	}
1000	else	1084	else
1001	#endif	1085	#endif
1002	{	1086	{
1003	while (pipe (evpipe))	1087	while (pipe (evpipe))
1004	syserr ("(libev) error creating signal/async pipe");	1088	ev_syserr ("(libev) error creating signal/async pipe");
1005		1089
1006	fd_intern (evpipe [0]);	1090	fd_intern (evpipe [0]);
1007	fd_intern (evpipe [1]);	1091	fd_intern (evpipe [1]);
1008	ev_io_set (&pipeev, evpipe [0], EV_READ);	1092	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1009	}	1093	}
1010		1094
1011	ev_io_start (EV_A_ &pipeev);	1095	ev_io_start (EV_A_ &pipe_w);
1012	ev_unref (EV_A); /* watcher should not keep loop alive */	1096	ev_unref (EV_A); /* watcher should not keep loop alive */
1013	}	1097	}
1014	}	1098	}
1015		1099
1016	void inline_size	1100	inline_size void
1017	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1101	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1018	{	1102	{
1019	if (!*flag)	1103	if (!*flag)
1020	{	1104	{
1021	int old_errno = errno; /* save errno because write might clobber it */	1105	int old_errno = errno; /* save errno because write might clobber it */
…		…
1034		1118
1035	errno = old_errno;	1119	errno = old_errno;
1036	}	1120	}
1037	}	1121	}
1038		1122
		1123	/* called whenever the libev signal pipe */
		1124	/* got some events (signal, async) */
1039	static void	1125	static void
1040	pipecb (EV_P_ ev_io *iow, int revents)	1126	pipecb (EV_P_ ev_io *iow, int revents)
1041	{	1127	{
1042	#if EV_USE_EVENTFD	1128	#if EV_USE_EVENTFD
1043	if (evfd >= 0)	1129	if (evfd >= 0)
…		…
1099	ev_feed_signal_event (EV_P_ int signum)	1185	ev_feed_signal_event (EV_P_ int signum)
1100	{	1186	{
1101	WL w;	1187	WL w;
1102		1188
1103	#if EV_MULTIPLICITY	1189	#if EV_MULTIPLICITY
1104	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1190	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1105	#endif	1191	#endif
1106		1192
1107	--signum;	1193	--signum;
1108		1194
1109	if (signum < 0 || signum >= signalmax)	1195	if (signum < 0 || signum >= signalmax)
…		…
1125		1211
1126	#ifndef WIFCONTINUED	1212	#ifndef WIFCONTINUED
1127	# define WIFCONTINUED(status) 0	1213	# define WIFCONTINUED(status) 0
1128	#endif	1214	#endif
1129		1215
1130	void inline_speed	1216	/* handle a single child status event */
		1217	inline_speed void
1131	child_reap (EV_P_ int chain, int pid, int status)	1218	child_reap (EV_P_ int chain, int pid, int status)
1132	{	1219	{
1133	ev_child *w;	1220	ev_child *w;
1134	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1221	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1135		1222
…		…
1148		1235
1149	#ifndef WCONTINUED	1236	#ifndef WCONTINUED
1150	# define WCONTINUED 0	1237	# define WCONTINUED 0
1151	#endif	1238	#endif
1152		1239
		1240	/* called on sigchld etc., calls waitpid */
1153	static void	1241	static void
1154	childcb (EV_P_ ev_signal *sw, int revents)	1242	childcb (EV_P_ ev_signal *sw, int revents)
1155	{	1243	{
1156	int pid, status;	1244	int pid, status;
1157		1245
…		…
1238	/* kqueue is borked on everything but netbsd apparently */	1326	/* kqueue is borked on everything but netbsd apparently */
1239	/* it usually doesn't work correctly on anything but sockets and pipes */	1327	/* it usually doesn't work correctly on anything but sockets and pipes */
1240	flags &= ~EVBACKEND_KQUEUE;	1328	flags &= ~EVBACKEND_KQUEUE;
1241	#endif	1329	#endif
1242	#ifdef __APPLE__	1330	#ifdef __APPLE__
1243	// flags &= ~EVBACKEND_KQUEUE; for documentation	1331	/* only select works correctly on that "unix-certified" platform */
1244	flags &= ~EVBACKEND_POLL;	1332	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1333	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1245	#endif	1334	#endif
1246		1335
1247	return flags;	1336	return flags;
1248	}	1337	}
1249		1338
…		…
1269	ev_loop_count (EV_P)	1358	ev_loop_count (EV_P)
1270	{	1359	{
1271	return loop_count;	1360	return loop_count;
1272	}	1361	}
1273		1362
		1363	unsigned int
		1364	ev_loop_depth (EV_P)
		1365	{
		1366	return loop_depth;
		1367	}
		1368
1274	void	1369	void
1275	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1370	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1276	{	1371	{
1277	io_blocktime = interval;	1372	io_blocktime = interval;
1278	}	1373	}
…		…
1281	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1376	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1282	{	1377	{
1283	timeout_blocktime = interval;	1378	timeout_blocktime = interval;
1284	}	1379	}
1285		1380
		1381	/* initialise a loop structure, must be zero-initialised */
1286	static void noinline	1382	static void noinline
1287	loop_init (EV_P_ unsigned int flags)	1383	loop_init (EV_P_ unsigned int flags)
1288	{	1384	{
1289	if (!backend)	1385	if (!backend)
1290	{	1386	{
		1387	#if EV_USE_REALTIME
		1388	if (!have_realtime)
		1389	{
		1390	struct timespec ts;
		1391
		1392	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1393	have_realtime = 1;
		1394	}
		1395	#endif
		1396
1291	#if EV_USE_MONOTONIC	1397	#if EV_USE_MONOTONIC
		1398	if (!have_monotonic)
1292	{	1399	{
1293	struct timespec ts;	1400	struct timespec ts;
		1401
1294	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1402	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1295	have_monotonic = 1;	1403	have_monotonic = 1;
1296	}	1404	}
1297	#endif	1405	#endif
1298		1406
1299	ev_rt_now = ev_time ();	1407	ev_rt_now = ev_time ();
1300	mn_now = get_clock ();	1408	mn_now = get_clock ();
1301	now_floor = mn_now;	1409	now_floor = mn_now;
…		…
1338	#endif	1446	#endif
1339	#if EV_USE_SELECT	1447	#if EV_USE_SELECT
1340	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1448	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1341	#endif	1449	#endif
1342		1450
		1451	ev_prepare_init (&pending_w, pendingcb);
		1452
1343	ev_init (&pipeev, pipecb);	1453	ev_init (&pipe_w, pipecb);
1344	ev_set_priority (&pipeev, EV_MAXPRI);	1454	ev_set_priority (&pipe_w, EV_MAXPRI);
1345	}	1455	}
1346	}	1456	}
1347		1457
		1458	/* free up a loop structure */
1348	static void noinline	1459	static void noinline
1349	loop_destroy (EV_P)	1460	loop_destroy (EV_P)
1350	{	1461	{
1351	int i;	1462	int i;
1352		1463
1353	if (ev_is_active (&pipeev))	1464	if (ev_is_active (&pipe_w))
1354	{	1465	{
1355	ev_ref (EV_A); /* signal watcher */	1466	ev_ref (EV_A); /* signal watcher */
1356	ev_io_stop (EV_A_ &pipeev);	1467	ev_io_stop (EV_A_ &pipe_w);
1357		1468
1358	#if EV_USE_EVENTFD	1469	#if EV_USE_EVENTFD
1359	if (evfd >= 0)	1470	if (evfd >= 0)
1360	close (evfd);	1471	close (evfd);
1361	#endif	1472	#endif
…		…
1400	}	1511	}
1401		1512
1402	ev_free (anfds); anfdmax = 0;	1513	ev_free (anfds); anfdmax = 0;
1403		1514
1404	/* have to use the microsoft-never-gets-it-right macro */	1515	/* have to use the microsoft-never-gets-it-right macro */
		1516	array_free (rfeed, EMPTY);
1405	array_free (fdchange, EMPTY);	1517	array_free (fdchange, EMPTY);
1406	array_free (timer, EMPTY);	1518	array_free (timer, EMPTY);
1407	#if EV_PERIODIC_ENABLE	1519	#if EV_PERIODIC_ENABLE
1408	array_free (periodic, EMPTY);	1520	array_free (periodic, EMPTY);
1409	#endif	1521	#endif
…		…
1418		1530
1419	backend = 0;	1531	backend = 0;
1420	}	1532	}
1421		1533
1422	#if EV_USE_INOTIFY	1534	#if EV_USE_INOTIFY
1423	void inline_size infy_fork (EV_P);	1535	inline_size void infy_fork (EV_P);
1424	#endif	1536	#endif
1425		1537
1426	void inline_size	1538	inline_size void
1427	loop_fork (EV_P)	1539	loop_fork (EV_P)
1428	{	1540	{
1429	#if EV_USE_PORT	1541	#if EV_USE_PORT
1430	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1542	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1431	#endif	1543	#endif
…		…
1437	#endif	1549	#endif
1438	#if EV_USE_INOTIFY	1550	#if EV_USE_INOTIFY
1439	infy_fork (EV_A);	1551	infy_fork (EV_A);
1440	#endif	1552	#endif
1441		1553
1442	if (ev_is_active (&pipeev))	1554	if (ev_is_active (&pipe_w))
1443	{	1555	{
1444	/* this "locks" the handlers against writing to the pipe */	1556	/* this "locks" the handlers against writing to the pipe */
1445	/* while we modify the fd vars */	1557	/* while we modify the fd vars */
1446	gotsig = 1;	1558	gotsig = 1;
1447	#if EV_ASYNC_ENABLE	1559	#if EV_ASYNC_ENABLE
1448	gotasync = 1;	1560	gotasync = 1;
1449	#endif	1561	#endif
1450		1562
1451	ev_ref (EV_A);	1563	ev_ref (EV_A);
1452	ev_io_stop (EV_A_ &pipeev);	1564	ev_io_stop (EV_A_ &pipe_w);
1453		1565
1454	#if EV_USE_EVENTFD	1566	#if EV_USE_EVENTFD
1455	if (evfd >= 0)	1567	if (evfd >= 0)
1456	close (evfd);	1568	close (evfd);
1457	#endif	1569	#endif
…		…
1462	close (evpipe [1]);	1574	close (evpipe [1]);
1463	}	1575	}
1464		1576
1465	evpipe_init (EV_A);	1577	evpipe_init (EV_A);
1466	/* now iterate over everything, in case we missed something */	1578	/* now iterate over everything, in case we missed something */
1467	pipecb (EV_A_ &pipeev, EV_READ);	1579	pipecb (EV_A_ &pipe_w, EV_READ);
1468	}	1580	}
1469		1581
1470	postfork = 0;	1582	postfork = 0;
1471	}	1583	}
1472		1584
…		…
1499	{	1611	{
1500	postfork = 1; /* must be in line with ev_default_fork */	1612	postfork = 1; /* must be in line with ev_default_fork */
1501	}	1613	}
1502		1614
1503	#if EV_VERIFY	1615	#if EV_VERIFY
1504	void noinline	1616	static void noinline
1505	verify_watcher (EV_P_ W w)	1617	verify_watcher (EV_P_ W w)
1506	{	1618	{
1507	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1619	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1508		1620
1509	if (w->pending)	1621	if (w->pending)
1510	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	1622	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1511	}	1623	}
1512		1624
1513	static void noinline	1625	static void noinline
1514	verify_heap (EV_P_ ANHE *heap, int N)	1626	verify_heap (EV_P_ ANHE *heap, int N)
1515	{	1627	{
1516	int i;	1628	int i;
1517		1629
1518	for (i = HEAP0; i < N + HEAP0; ++i)	1630	for (i = HEAP0; i < N + HEAP0; ++i)
1519	{	1631	{
1520	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));	1632	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])));	1633	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]))));	1634	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1523		1635
1524	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1636	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1525	}	1637	}
1526	}	1638	}
1527		1639
1528	static void noinline	1640	static void noinline
1529	array_verify (EV_P_ W *ws, int cnt)	1641	array_verify (EV_P_ W *ws, int cnt)
1530	{	1642	{
1531	while (cnt--)	1643	while (cnt--)
1532	{	1644	{
1533	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1645	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1534	verify_watcher (EV_A_ ws [cnt]);	1646	verify_watcher (EV_A_ ws [cnt]);
1535	}	1647	}
1536	}	1648	}
1537	#endif	1649	#endif
1538		1650
…		…
1545		1657
1546	assert (activecnt >= -1);	1658	assert (activecnt >= -1);
1547		1659
1548	assert (fdchangemax >= fdchangecnt);	1660	assert (fdchangemax >= fdchangecnt);
1549	for (i = 0; i < fdchangecnt; ++i)	1661	for (i = 0; i < fdchangecnt; ++i)
1550	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1662	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1551		1663
1552	assert (anfdmax >= 0);	1664	assert (anfdmax >= 0);
1553	for (i = 0; i < anfdmax; ++i)	1665	for (i = 0; i < anfdmax; ++i)
1554	for (w = anfds [i].head; w; w = w->next)	1666	for (w = anfds [i].head; w; w = w->next)
1555	{	1667	{
1556	verify_watcher (EV_A_ (W)w);	1668	verify_watcher (EV_A_ (W)w);
1557	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1669	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));	1670	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1559	}	1671	}
1560		1672
1561	assert (timermax >= timercnt);	1673	assert (timermax >= timercnt);
1562	verify_heap (EV_A_ timers, timercnt);	1674	verify_heap (EV_A_ timers, timercnt);
1563		1675
…		…
1640	{	1752	{
1641	#if EV_MULTIPLICITY	1753	#if EV_MULTIPLICITY
1642	struct ev_loop *loop = ev_default_loop_ptr;	1754	struct ev_loop *loop = ev_default_loop_ptr;
1643	#endif	1755	#endif
1644		1756
		1757	ev_default_loop_ptr = 0;
		1758
1645	#ifndef _WIN32	1759	#ifndef _WIN32
1646	ev_ref (EV_A); /* child watcher */	1760	ev_ref (EV_A); /* child watcher */
1647	ev_signal_stop (EV_A_ &childev);	1761	ev_signal_stop (EV_A_ &childev);
1648	#endif	1762	#endif
1649		1763
…		…
1655	{	1769	{
1656	#if EV_MULTIPLICITY	1770	#if EV_MULTIPLICITY
1657	struct ev_loop *loop = ev_default_loop_ptr;	1771	struct ev_loop *loop = ev_default_loop_ptr;
1658	#endif	1772	#endif
1659		1773
1660	if (backend)
1661	postfork = 1; /* must be in line with ev_loop_fork */	1774	postfork = 1; /* must be in line with ev_loop_fork */
1662	}	1775	}
1663		1776
1664	/*****************************************************************************/	1777	/*****************************************************************************/
1665		1778
1666	void	1779	void
1667	ev_invoke (EV_P_ void *w, int revents)	1780	ev_invoke (EV_P_ void *w, int revents)
1668	{	1781	{
1669	EV_CB_INVOKE ((W)w, revents);	1782	EV_CB_INVOKE ((W)w, revents);
1670	}	1783	}
1671		1784
1672	void inline_speed	1785	inline_speed void
1673	call_pending (EV_P)	1786	call_pending (EV_P)
1674	{	1787	{
1675	int pri;	1788	int pri;
1676		1789
1677	for (pri = NUMPRI; pri--; )	1790	for (pri = NUMPRI; pri--; )
1678	while (pendingcnt [pri])	1791	while (pendingcnt [pri])
1679	{	1792	{
1680	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1793	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1681		1794
1682	if (expect_true (p->w))
1683	{
1684	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1795	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1796	/* ^ this is no longer true, as pending_w could be here */
1685		1797
1686	p->w->pending = 0;	1798	p->w->pending = 0;
1687	EV_CB_INVOKE (p->w, p->events);	1799	EV_CB_INVOKE (p->w, p->events);
1688	EV_FREQUENT_CHECK;	1800	EV_FREQUENT_CHECK;
1689	}
1690	}	1801	}
1691	}	1802	}
1692		1803
1693	#if EV_IDLE_ENABLE	1804	#if EV_IDLE_ENABLE
1694	void inline_size	1805	/* make idle watchers pending. this handles the "call-idle */
		1806	/* only when higher priorities are idle" logic */
		1807	inline_size void
1695	idle_reify (EV_P)	1808	idle_reify (EV_P)
1696	{	1809	{
1697	if (expect_false (idleall))	1810	if (expect_false (idleall))
1698	{	1811	{
1699	int pri;	1812	int pri;
…		…
1711	}	1824	}
1712	}	1825	}
1713	}	1826	}
1714	#endif	1827	#endif
1715		1828
1716	void inline_size	1829	/* make timers pending */
		1830	inline_size void
1717	timers_reify (EV_P)	1831	timers_reify (EV_P)
1718	{	1832	{
1719	EV_FREQUENT_CHECK;	1833	EV_FREQUENT_CHECK;
1720		1834
1721	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1835	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1722	{	1836	{
1723	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1837	do
1724
1725	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1726
1727	/* first reschedule or stop timer */
1728	if (w->repeat)
1729	{	1838	{
		1839	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1840
		1841	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		1842
		1843	/* first reschedule or stop timer */
		1844	if (w->repeat)
		1845	{
1730	ev_at (w) += w->repeat;	1846	ev_at (w) += w->repeat;
1731	if (ev_at (w) < mn_now)	1847	if (ev_at (w) < mn_now)
1732	ev_at (w) = mn_now;	1848	ev_at (w) = mn_now;
1733		1849
1734	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1850	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1735		1851
1736	ANHE_at_cache (timers [HEAP0]);	1852	ANHE_at_cache (timers [HEAP0]);
1737	downheap (timers, timercnt, HEAP0);	1853	downheap (timers, timercnt, HEAP0);
		1854	}
		1855	else
		1856	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1857
		1858	EV_FREQUENT_CHECK;
		1859	feed_reverse (EV_A_ (W)w);
1738	}	1860	}
1739	else	1861	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1740	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1741		1862
1742	EV_FREQUENT_CHECK;
1743	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1863	feed_reverse_done (EV_A_ EV_TIMEOUT);
1744	}	1864	}
1745	}	1865	}
1746		1866
1747	#if EV_PERIODIC_ENABLE	1867	#if EV_PERIODIC_ENABLE
1748	void inline_size	1868	/* make periodics pending */
		1869	inline_size void
1749	periodics_reify (EV_P)	1870	periodics_reify (EV_P)
1750	{	1871	{
1751	EV_FREQUENT_CHECK;	1872	EV_FREQUENT_CHECK;
1752		1873
1753	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1874	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1754	{	1875	{
1755	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1876	int feed_count = 0;
1756		1877
1757	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1878	do
1758
1759	/* first reschedule or stop timer */
1760	if (w->reschedule_cb)
1761	{	1879	{
		1880	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1881
		1882	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		1883
		1884	/* first reschedule or stop timer */
		1885	if (w->reschedule_cb)
		1886	{
1762	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1887	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1763		1888
1764	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1889	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1765		1890
1766	ANHE_at_cache (periodics [HEAP0]);	1891	ANHE_at_cache (periodics [HEAP0]);
1767	downheap (periodics, periodiccnt, HEAP0);	1892	downheap (periodics, periodiccnt, HEAP0);
		1893	}
		1894	else if (w->interval)
		1895	{
		1896	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1897	/* if next trigger time is not sufficiently in the future, put it there */
		1898	/* this might happen because of floating point inexactness */
		1899	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1900	{
		1901	ev_at (w) += w->interval;
		1902
		1903	/* if interval is unreasonably low we might still have a time in the past */
		1904	/* so correct this. this will make the periodic very inexact, but the user */
		1905	/* has effectively asked to get triggered more often than possible */
		1906	if (ev_at (w) < ev_rt_now)
		1907	ev_at (w) = ev_rt_now;
		1908	}
		1909
		1910	ANHE_at_cache (periodics [HEAP0]);
		1911	downheap (periodics, periodiccnt, HEAP0);
		1912	}
		1913	else
		1914	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1915
		1916	EV_FREQUENT_CHECK;
		1917	feed_reverse (EV_A_ (W)w);
1768	}	1918	}
1769	else if (w->interval)	1919	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1770	{
1771	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1772	/* if next trigger time is not sufficiently in the future, put it there */
1773	/* this might happen because of floating point inexactness */
1774	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1775	{
1776	ev_at (w) += w->interval;
1777		1920
1778	/* if interval is unreasonably low we might still have a time in the past */
1779	/* so correct this. this will make the periodic very inexact, but the user */
1780	/* has effectively asked to get triggered more often than possible */
1781	if (ev_at (w) < ev_rt_now)
1782	ev_at (w) = ev_rt_now;
1783	}
1784
1785	ANHE_at_cache (periodics [HEAP0]);
1786	downheap (periodics, periodiccnt, HEAP0);
1787	}
1788	else
1789	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1790
1791	EV_FREQUENT_CHECK;
1792	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1921	feed_reverse_done (EV_A_ EV_PERIODIC);
1793	}	1922	}
1794	}	1923	}
1795		1924
		1925	/* simply recalculate all periodics */
		1926	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1796	static void noinline	1927	static void noinline
1797	periodics_reschedule (EV_P)	1928	periodics_reschedule (EV_P)
1798	{	1929	{
1799	int i;	1930	int i;
1800		1931
…		…
1813		1944
1814	reheap (periodics, periodiccnt);	1945	reheap (periodics, periodiccnt);
1815	}	1946	}
1816	#endif	1947	#endif
1817		1948
1818	void inline_speed	1949	/* adjust all timers by a given offset */
		1950	static void noinline
		1951	timers_reschedule (EV_P_ ev_tstamp adjust)
		1952	{
		1953	int i;
		1954
		1955	for (i = 0; i < timercnt; ++i)
		1956	{
		1957	ANHE *he = timers + i + HEAP0;
		1958	ANHE_w (*he)->at += adjust;
		1959	ANHE_at_cache (*he);
		1960	}
		1961	}
		1962
		1963	/* fetch new monotonic and realtime times from the kernel */
		1964	/* also detetc if there was a timejump, and act accordingly */
		1965	inline_speed void
1819	time_update (EV_P_ ev_tstamp max_block)	1966	time_update (EV_P_ ev_tstamp max_block)
1820	{	1967	{
1821	int i;
1822
1823	#if EV_USE_MONOTONIC	1968	#if EV_USE_MONOTONIC
1824	if (expect_true (have_monotonic))	1969	if (expect_true (have_monotonic))
1825	{	1970	{
		1971	int i;
1826	ev_tstamp odiff = rtmn_diff;	1972	ev_tstamp odiff = rtmn_diff;
1827		1973
1828	mn_now = get_clock ();	1974	mn_now = get_clock ();
1829		1975
1830	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	1976	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1856	ev_rt_now = ev_time ();	2002	ev_rt_now = ev_time ();
1857	mn_now = get_clock ();	2003	mn_now = get_clock ();
1858	now_floor = mn_now;	2004	now_floor = mn_now;
1859	}	2005	}
1860		2006
		2007	/* no timer adjustment, as the monotonic clock doesn't jump */
		2008	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1861	# if EV_PERIODIC_ENABLE	2009	# if EV_PERIODIC_ENABLE
1862	periodics_reschedule (EV_A);	2010	periodics_reschedule (EV_A);
1863	# endif	2011	# endif
1864	/* no timer adjustment, as the monotonic clock doesn't jump */
1865	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1866	}	2012	}
1867	else	2013	else
1868	#endif	2014	#endif
1869	{	2015	{
1870	ev_rt_now = ev_time ();	2016	ev_rt_now = ev_time ();
1871		2017
1872	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2018	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1873	{	2019	{
		2020	/* adjust timers. this is easy, as the offset is the same for all of them */
		2021	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1874	#if EV_PERIODIC_ENABLE	2022	#if EV_PERIODIC_ENABLE
1875	periodics_reschedule (EV_A);	2023	periodics_reschedule (EV_A);
1876	#endif	2024	#endif
1877	/* adjust timers. this is easy, as the offset is the same for all of them */
1878	for (i = 0; i < timercnt; ++i)
1879	{
1880	ANHE *he = timers + i + HEAP0;
1881	ANHE_w (*he)->at += ev_rt_now - mn_now;
1882	ANHE_at_cache (*he);
1883	}
1884	}	2025	}
1885		2026
1886	mn_now = ev_rt_now;	2027	mn_now = ev_rt_now;
1887	}	2028	}
1888	}	2029	}
1889		2030
1890	void	2031	void
1891	ev_ref (EV_P)
1892	{
1893	++activecnt;
1894	}
1895
1896	void
1897	ev_unref (EV_P)
1898	{
1899	--activecnt;
1900	}
1901
1902	static int loop_done;
1903
1904	void
1905	ev_loop (EV_P_ int flags)	2032	ev_loop (EV_P_ int flags)
1906	{	2033	{
		2034	++loop_depth;
		2035
1907	loop_done = EVUNLOOP_CANCEL;	2036	loop_done = EVUNLOOP_CANCEL;
1908		2037
1909	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2038	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1910		2039
1911	do	2040	do
…		…
1938	{	2067	{
1939	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2068	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1940	call_pending (EV_A);	2069	call_pending (EV_A);
1941	}	2070	}
1942		2071
1943	if (expect_false (!activecnt))
1944	break;
1945
1946	/* we might have forked, so reify kernel state if necessary */	2072	/* we might have forked, so reify kernel state if necessary */
1947	if (expect_false (postfork))	2073	if (expect_false (postfork))
1948	loop_fork (EV_A);	2074	loop_fork (EV_A);
1949		2075
1950	/* update fd-related kernel structures */	2076	/* update fd-related kernel structures */
…		…
1955	ev_tstamp waittime = 0.;	2081	ev_tstamp waittime = 0.;
1956	ev_tstamp sleeptime = 0.;	2082	ev_tstamp sleeptime = 0.;
1957		2083
1958	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2084	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1959	{	2085	{
		2086	/* remember old timestamp for io_blocktime calculation */
		2087	ev_tstamp prev_mn_now = mn_now;
		2088
1960	/* update time to cancel out callback processing overhead */	2089	/* update time to cancel out callback processing overhead */
1961	time_update (EV_A_ 1e100);	2090	time_update (EV_A_ 1e100);
1962		2091
1963	waittime = MAX_BLOCKTIME;	2092	waittime = MAX_BLOCKTIME;
1964		2093
…		…
1974	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2103	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1975	if (waittime > to) waittime = to;	2104	if (waittime > to) waittime = to;
1976	}	2105	}
1977	#endif	2106	#endif
1978		2107
		2108	/* don't let timeouts decrease the waittime below timeout_blocktime */
1979	if (expect_false (waittime < timeout_blocktime))	2109	if (expect_false (waittime < timeout_blocktime))
1980	waittime = timeout_blocktime;	2110	waittime = timeout_blocktime;
1981		2111
1982	sleeptime = waittime - backend_fudge;	2112	/* extra check because io_blocktime is commonly 0 */
1983
1984	if (expect_true (sleeptime > io_blocktime))	2113	if (expect_false (io_blocktime))
1985	sleeptime = io_blocktime;
1986
1987	if (sleeptime)
1988	{	2114	{
		2115	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2116
		2117	if (sleeptime > waittime - backend_fudge)
		2118	sleeptime = waittime - backend_fudge;
		2119
		2120	if (expect_true (sleeptime > 0.))
		2121	{
1989	ev_sleep (sleeptime);	2122	ev_sleep (sleeptime);
1990	waittime -= sleeptime;	2123	waittime -= sleeptime;
		2124	}
1991	}	2125	}
1992	}	2126	}
1993		2127
1994	++loop_count;	2128	++loop_count;
1995	backend_poll (EV_A_ waittime);	2129	backend_poll (EV_A_ waittime);
…		…
2021	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2155	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2022	));	2156	));
2023		2157
2024	if (loop_done == EVUNLOOP_ONE)	2158	if (loop_done == EVUNLOOP_ONE)
2025	loop_done = EVUNLOOP_CANCEL;	2159	loop_done = EVUNLOOP_CANCEL;
		2160
		2161	--loop_depth;
2026	}	2162	}
2027		2163
2028	void	2164	void
2029	ev_unloop (EV_P_ int how)	2165	ev_unloop (EV_P_ int how)
2030	{	2166	{
2031	loop_done = how;	2167	loop_done = how;
2032	}	2168	}
2033		2169
		2170	void
		2171	ev_ref (EV_P)
		2172	{
		2173	++activecnt;
		2174	}
		2175
		2176	void
		2177	ev_unref (EV_P)
		2178	{
		2179	--activecnt;
		2180	}
		2181
		2182	void
		2183	ev_now_update (EV_P)
		2184	{
		2185	time_update (EV_A_ 1e100);
		2186	}
		2187
		2188	void
		2189	ev_suspend (EV_P)
		2190	{
		2191	ev_now_update (EV_A);
		2192	}
		2193
		2194	void
		2195	ev_resume (EV_P)
		2196	{
		2197	ev_tstamp mn_prev = mn_now;
		2198
		2199	ev_now_update (EV_A);
		2200	timers_reschedule (EV_A_ mn_now - mn_prev);
		2201	#if EV_PERIODIC_ENABLE
		2202	/* TODO: really do this? */
		2203	periodics_reschedule (EV_A);
		2204	#endif
		2205	}
		2206
2034	/*****************************************************************************/	2207	/*****************************************************************************/
		2208	/* singly-linked list management, used when the expected list length is short */
2035		2209
2036	void inline_size	2210	inline_size void
2037	wlist_add (WL *head, WL elem)	2211	wlist_add (WL *head, WL elem)
2038	{	2212	{
2039	elem->next = *head;	2213	elem->next = *head;
2040	*head = elem;	2214	*head = elem;
2041	}	2215	}
2042		2216
2043	void inline_size	2217	inline_size void
2044	wlist_del (WL *head, WL elem)	2218	wlist_del (WL *head, WL elem)
2045	{	2219	{
2046	while (*head)	2220	while (*head)
2047	{	2221	{
2048	if (*head == elem)	2222	if (*head == elem)
…		…
2053		2227
2054	head = &(*head)->next;	2228	head = &(*head)->next;
2055	}	2229	}
2056	}	2230	}
2057		2231
2058	void inline_speed	2232	/* internal, faster, version of ev_clear_pending */
		2233	inline_speed void
2059	clear_pending (EV_P_ W w)	2234	clear_pending (EV_P_ W w)
2060	{	2235	{
2061	if (w->pending)	2236	if (w->pending)
2062	{	2237	{
2063	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2238	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2064	w->pending = 0;	2239	w->pending = 0;
2065	}	2240	}
2066	}	2241	}
2067		2242
2068	int	2243	int
…		…
2072	int pending = w_->pending;	2247	int pending = w_->pending;
2073		2248
2074	if (expect_true (pending))	2249	if (expect_true (pending))
2075	{	2250	{
2076	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2251	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2252	p->w = (W)&pending_w;
2077	w_->pending = 0;	2253	w_->pending = 0;
2078	p->w = 0;
2079	return p->events;	2254	return p->events;
2080	}	2255	}
2081	else	2256	else
2082	return 0;	2257	return 0;
2083	}	2258	}
2084		2259
2085	void inline_size	2260	inline_size void
2086	pri_adjust (EV_P_ W w)	2261	pri_adjust (EV_P_ W w)
2087	{	2262	{
2088	int pri = w->priority;	2263	int pri = w->priority;
2089	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2264	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2090	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2265	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2091	w->priority = pri;	2266	w->priority = pri;
2092	}	2267	}
2093		2268
2094	void inline_speed	2269	inline_speed void
2095	ev_start (EV_P_ W w, int active)	2270	ev_start (EV_P_ W w, int active)
2096	{	2271	{
2097	pri_adjust (EV_A_ w);	2272	pri_adjust (EV_A_ w);
2098	w->active = active;	2273	w->active = active;
2099	ev_ref (EV_A);	2274	ev_ref (EV_A);
2100	}	2275	}
2101		2276
2102	void inline_size	2277	inline_size void
2103	ev_stop (EV_P_ W w)	2278	ev_stop (EV_P_ W w)
2104	{	2279	{
2105	ev_unref (EV_A);	2280	ev_unref (EV_A);
2106	w->active = 0;	2281	w->active = 0;
2107	}	2282	}
…		…
2114	int fd = w->fd;	2289	int fd = w->fd;
2115		2290
2116	if (expect_false (ev_is_active (w)))	2291	if (expect_false (ev_is_active (w)))
2117	return;	2292	return;
2118		2293
2119	assert (("ev_io_start called with negative fd", fd >= 0));	2294	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2295	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2120		2296
2121	EV_FREQUENT_CHECK;	2297	EV_FREQUENT_CHECK;
2122		2298
2123	ev_start (EV_A_ (W)w, 1);	2299	ev_start (EV_A_ (W)w, 1);
2124	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2300	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2125	wlist_add (&anfds[fd].head, (WL)w);	2301	wlist_add (&anfds[fd].head, (WL)w);
2126		2302
2127	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2303	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2128	w->events &= ~EV_IOFDSET;	2304	w->events &= ~EV__IOFDSET;
2129		2305
2130	EV_FREQUENT_CHECK;	2306	EV_FREQUENT_CHECK;
2131	}	2307	}
2132		2308
2133	void noinline	2309	void noinline
…		…
2135	{	2311	{
2136	clear_pending (EV_A_ (W)w);	2312	clear_pending (EV_A_ (W)w);
2137	if (expect_false (!ev_is_active (w)))	2313	if (expect_false (!ev_is_active (w)))
2138	return;	2314	return;
2139		2315
2140	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2316	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2141		2317
2142	EV_FREQUENT_CHECK;	2318	EV_FREQUENT_CHECK;
2143		2319
2144	wlist_del (&anfds[w->fd].head, (WL)w);	2320	wlist_del (&anfds[w->fd].head, (WL)w);
2145	ev_stop (EV_A_ (W)w);	2321	ev_stop (EV_A_ (W)w);
…		…
2155	if (expect_false (ev_is_active (w)))	2331	if (expect_false (ev_is_active (w)))
2156	return;	2332	return;
2157		2333
2158	ev_at (w) += mn_now;	2334	ev_at (w) += mn_now;
2159		2335
2160	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2336	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2161		2337
2162	EV_FREQUENT_CHECK;	2338	EV_FREQUENT_CHECK;
2163		2339
2164	++timercnt;	2340	++timercnt;
2165	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2341	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2168	ANHE_at_cache (timers [ev_active (w)]);	2344	ANHE_at_cache (timers [ev_active (w)]);
2169	upheap (timers, ev_active (w));	2345	upheap (timers, ev_active (w));
2170		2346
2171	EV_FREQUENT_CHECK;	2347	EV_FREQUENT_CHECK;
2172		2348
2173	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2349	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2174	}	2350	}
2175		2351
2176	void noinline	2352	void noinline
2177	ev_timer_stop (EV_P_ ev_timer *w)	2353	ev_timer_stop (EV_P_ ev_timer *w)
2178	{	2354	{
…		…
2183	EV_FREQUENT_CHECK;	2359	EV_FREQUENT_CHECK;
2184		2360
2185	{	2361	{
2186	int active = ev_active (w);	2362	int active = ev_active (w);
2187		2363
2188	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2364	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2189		2365
2190	--timercnt;	2366	--timercnt;
2191		2367
2192	if (expect_true (active < timercnt + HEAP0))	2368	if (expect_true (active < timercnt + HEAP0))
2193	{	2369	{
…		…
2237		2413
2238	if (w->reschedule_cb)	2414	if (w->reschedule_cb)
2239	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2415	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2240	else if (w->interval)	2416	else if (w->interval)
2241	{	2417	{
2242	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2418	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2243	/* this formula differs from the one in periodic_reify because we do not always round up */	2419	/* this formula differs from the one in periodic_reify because we do not always round up */
2244	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2420	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2245	}	2421	}
2246	else	2422	else
2247	ev_at (w) = w->offset;	2423	ev_at (w) = w->offset;
…		…
2255	ANHE_at_cache (periodics [ev_active (w)]);	2431	ANHE_at_cache (periodics [ev_active (w)]);
2256	upheap (periodics, ev_active (w));	2432	upheap (periodics, ev_active (w));
2257		2433
2258	EV_FREQUENT_CHECK;	2434	EV_FREQUENT_CHECK;
2259		2435
2260	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2436	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2261	}	2437	}
2262		2438
2263	void noinline	2439	void noinline
2264	ev_periodic_stop (EV_P_ ev_periodic *w)	2440	ev_periodic_stop (EV_P_ ev_periodic *w)
2265	{	2441	{
…		…
2270	EV_FREQUENT_CHECK;	2446	EV_FREQUENT_CHECK;
2271		2447
2272	{	2448	{
2273	int active = ev_active (w);	2449	int active = ev_active (w);
2274		2450
2275	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2451	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2276		2452
2277	--periodiccnt;	2453	--periodiccnt;
2278		2454
2279	if (expect_true (active < periodiccnt + HEAP0))	2455	if (expect_true (active < periodiccnt + HEAP0))
2280	{	2456	{
…		…
2303		2479
2304	void noinline	2480	void noinline
2305	ev_signal_start (EV_P_ ev_signal *w)	2481	ev_signal_start (EV_P_ ev_signal *w)
2306	{	2482	{
2307	#if EV_MULTIPLICITY	2483	#if EV_MULTIPLICITY
2308	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2484	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2309	#endif	2485	#endif
2310	if (expect_false (ev_is_active (w)))	2486	if (expect_false (ev_is_active (w)))
2311	return;	2487	return;
2312		2488
2313	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2489	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2314		2490
2315	evpipe_init (EV_A);	2491	evpipe_init (EV_A);
2316		2492
2317	EV_FREQUENT_CHECK;	2493	EV_FREQUENT_CHECK;
2318		2494
…		…
2321	sigset_t full, prev;	2497	sigset_t full, prev;
2322	sigfillset (&full);	2498	sigfillset (&full);
2323	sigprocmask (SIG_SETMASK, &full, &prev);	2499	sigprocmask (SIG_SETMASK, &full, &prev);
2324	#endif	2500	#endif
2325		2501
2326	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2502	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2327		2503
2328	#ifndef _WIN32	2504	#ifndef _WIN32
2329	sigprocmask (SIG_SETMASK, &prev, 0);	2505	sigprocmask (SIG_SETMASK, &prev, 0);
2330	#endif	2506	#endif
2331	}	2507	}
…		…
2369		2545
2370	void	2546	void
2371	ev_child_start (EV_P_ ev_child *w)	2547	ev_child_start (EV_P_ ev_child *w)
2372	{	2548	{
2373	#if EV_MULTIPLICITY	2549	#if EV_MULTIPLICITY
2374	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2550	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2375	#endif	2551	#endif
2376	if (expect_false (ev_is_active (w)))	2552	if (expect_false (ev_is_active (w)))
2377	return;	2553	return;
2378		2554
2379	EV_FREQUENT_CHECK;	2555	EV_FREQUENT_CHECK;
…		…
2404	# ifdef _WIN32	2580	# ifdef _WIN32
2405	# undef lstat	2581	# undef lstat
2406	# define lstat(a,b) _stati64 (a,b)	2582	# define lstat(a,b) _stati64 (a,b)
2407	# endif	2583	# endif
2408		2584
2409	#define DEF_STAT_INTERVAL 5.0074891	2585	#define DEF_STAT_INTERVAL 5.0074891
		2586	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2410	#define MIN_STAT_INTERVAL 0.1074891	2587	#define MIN_STAT_INTERVAL 0.1074891
2411		2588
2412	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2589	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2413		2590
2414	#if EV_USE_INOTIFY	2591	#if EV_USE_INOTIFY
2415	# define EV_INOTIFY_BUFSIZE 8192	2592	# define EV_INOTIFY_BUFSIZE 8192
…		…
2419	{	2596	{
2420	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);	2597	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);
2421		2598
2422	if (w->wd < 0)	2599	if (w->wd < 0)
2423	{	2600	{
		2601	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2424	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2602	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2425		2603
2426	/* monitor some parent directory for speedup hints */	2604	/* monitor some parent directory for speedup hints */
2427	/* note that exceeding the hardcoded limit is not a correctness issue, */	2605	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2428	/* but an efficiency issue only */	2606	/* but an efficiency issue only */
2429	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2607	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2430	{	2608	{
2431	char path [4096];	2609	char path [4096];
2432	strcpy (path, w->path);	2610	strcpy (path, w->path);
…		…
2436	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2614	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2437	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2615	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2438		2616
2439	char *pend = strrchr (path, '/');	2617	char *pend = strrchr (path, '/');
2440		2618
2441	if (!pend)	2619	if (!pend || pend == path)
2442	break; /* whoops, no '/', complain to your admin */	2620	break;
2443		2621
2444	*pend = 0;	2622	*pend = 0;
2445	w->wd = inotify_add_watch (fs_fd, path, mask);	2623	w->wd = inotify_add_watch (fs_fd, path, mask);
2446	}	2624	}
2447	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2625	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2448	}	2626	}
2449	}	2627	}
2450	else
2451	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2452		2628
2453	if (w->wd >= 0)	2629	if (w->wd >= 0)
		2630	{
2454	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2631	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2632
		2633	/* now local changes will be tracked by inotify, but remote changes won't */
		2634	/* unless the filesystem it known to be local, we therefore still poll */
		2635	/* also do poll on <2.6.25, but with normal frequency */
		2636	struct statfs sfs;
		2637
		2638	if (fs_2625 && !statfs (w->path, &sfs))
		2639	if (sfs.f_type == 0x1373 /* devfs */
		2640	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2641	|| sfs.f_type == 0x3153464a /* jfs */
		2642	|| sfs.f_type == 0x52654973 /* reiser3 */
		2643	|| sfs.f_type == 0x01021994 /* tempfs */
		2644	|| sfs.f_type == 0x58465342 /* xfs */)
		2645	return;
		2646
		2647	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2648	ev_timer_again (EV_A_ &w->timer);
		2649	}
2455	}	2650	}
2456		2651
2457	static void noinline	2652	static void noinline
2458	infy_del (EV_P_ ev_stat *w)	2653	infy_del (EV_P_ ev_stat *w)
2459	{	2654	{
…		…
2473		2668
2474	static void noinline	2669	static void noinline
2475	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2670	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2476	{	2671	{
2477	if (slot < 0)	2672	if (slot < 0)
2478	/* overflow, need to check for all hahs slots */	2673	/* overflow, need to check for all hash slots */
2479	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2674	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2480	infy_wd (EV_A_ slot, wd, ev);	2675	infy_wd (EV_A_ slot, wd, ev);
2481	else	2676	else
2482	{	2677	{
2483	WL w_;	2678	WL w_;
…		…
2489		2684
2490	if (w->wd == wd || wd == -1)	2685	if (w->wd == wd || wd == -1)
2491	{	2686	{
2492	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2687	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2493	{	2688	{
		2689	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2494	w->wd = -1;	2690	w->wd = -1;
2495	infy_add (EV_A_ w); /* re-add, no matter what */	2691	infy_add (EV_A_ w); /* re-add, no matter what */
2496	}	2692	}
2497		2693
2498	stat_timer_cb (EV_A_ &w->timer, 0);	2694	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2511		2707
2512	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2708	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2513	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2709	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2514	}	2710	}
2515		2711
2516	void inline_size	2712	inline_size void
		2713	check_2625 (EV_P)
		2714	{
		2715	/* kernels < 2.6.25 are borked
		2716	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2717	*/
		2718	struct utsname buf;
		2719	int major, minor, micro;
		2720
		2721	if (uname (&buf))
		2722	return;
		2723
		2724	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2725	return;
		2726
		2727	if (major < 2
		2728	|| (major == 2 && minor < 6)
		2729	|| (major == 2 && minor == 6 && micro < 25))
		2730	return;
		2731
		2732	fs_2625 = 1;
		2733	}
		2734
		2735	inline_size void
2517	infy_init (EV_P)	2736	infy_init (EV_P)
2518	{	2737	{
2519	if (fs_fd != -2)	2738	if (fs_fd != -2)
2520	return;	2739	return;
		2740
		2741	fs_fd = -1;
		2742
		2743	check_2625 (EV_A);
2521		2744
2522	fs_fd = inotify_init ();	2745	fs_fd = inotify_init ();
2523		2746
2524	if (fs_fd >= 0)	2747	if (fs_fd >= 0)
2525	{	2748	{
…		…
2527	ev_set_priority (&fs_w, EV_MAXPRI);	2750	ev_set_priority (&fs_w, EV_MAXPRI);
2528	ev_io_start (EV_A_ &fs_w);	2751	ev_io_start (EV_A_ &fs_w);
2529	}	2752	}
2530	}	2753	}
2531		2754
2532	void inline_size	2755	inline_size void
2533	infy_fork (EV_P)	2756	infy_fork (EV_P)
2534	{	2757	{
2535	int slot;	2758	int slot;
2536		2759
2537	if (fs_fd < 0)	2760	if (fs_fd < 0)
…		…
2553	w->wd = -1;	2776	w->wd = -1;
2554		2777
2555	if (fs_fd >= 0)	2778	if (fs_fd >= 0)
2556	infy_add (EV_A_ w); /* re-add, no matter what */	2779	infy_add (EV_A_ w); /* re-add, no matter what */
2557	else	2780	else
2558	ev_timer_start (EV_A_ &w->timer);	2781	ev_timer_again (EV_A_ &w->timer);
2559	}	2782	}
2560
2561	}	2783	}
2562	}	2784	}
2563		2785
		2786	#endif
		2787
		2788	#ifdef _WIN32
		2789	# define EV_LSTAT(p,b) _stati64 (p, b)
		2790	#else
		2791	# define EV_LSTAT(p,b) lstat (p, b)
2564	#endif	2792	#endif
2565		2793
2566	void	2794	void
2567	ev_stat_stat (EV_P_ ev_stat *w)	2795	ev_stat_stat (EV_P_ ev_stat *w)
2568	{	2796	{
…		…
2595	|| w->prev.st_atime != w->attr.st_atime	2823	|| w->prev.st_atime != w->attr.st_atime
2596	|| w->prev.st_mtime != w->attr.st_mtime	2824	|| w->prev.st_mtime != w->attr.st_mtime
2597	|| w->prev.st_ctime != w->attr.st_ctime	2825	|| w->prev.st_ctime != w->attr.st_ctime
2598	) {	2826	) {
2599	#if EV_USE_INOTIFY	2827	#if EV_USE_INOTIFY
		2828	if (fs_fd >= 0)
		2829	{
2600	infy_del (EV_A_ w);	2830	infy_del (EV_A_ w);
2601	infy_add (EV_A_ w);	2831	infy_add (EV_A_ w);
2602	ev_stat_stat (EV_A_ w); /* avoid race... */	2832	ev_stat_stat (EV_A_ w); /* avoid race... */
		2833	}
2603	#endif	2834	#endif
2604		2835
2605	ev_feed_event (EV_A_ w, EV_STAT);	2836	ev_feed_event (EV_A_ w, EV_STAT);
2606	}	2837	}
2607	}	2838	}
…		…
2610	ev_stat_start (EV_P_ ev_stat *w)	2841	ev_stat_start (EV_P_ ev_stat *w)
2611	{	2842	{
2612	if (expect_false (ev_is_active (w)))	2843	if (expect_false (ev_is_active (w)))
2613	return;	2844	return;
2614		2845
2615	/* since we use memcmp, we need to clear any padding data etc. */
2616	memset (&w->prev, 0, sizeof (ev_statdata));
2617	memset (&w->attr, 0, sizeof (ev_statdata));
2618
2619	ev_stat_stat (EV_A_ w);	2846	ev_stat_stat (EV_A_ w);
2620		2847
		2848	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2621	if (w->interval < MIN_STAT_INTERVAL)	2849	w->interval = MIN_STAT_INTERVAL;
2622	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2623		2850
2624	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2851	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2625	ev_set_priority (&w->timer, ev_priority (w));	2852	ev_set_priority (&w->timer, ev_priority (w));
2626		2853
2627	#if EV_USE_INOTIFY	2854	#if EV_USE_INOTIFY
2628	infy_init (EV_A);	2855	infy_init (EV_A);
2629		2856
2630	if (fs_fd >= 0)	2857	if (fs_fd >= 0)
2631	infy_add (EV_A_ w);	2858	infy_add (EV_A_ w);
2632	else	2859	else
2633	#endif	2860	#endif
2634	ev_timer_start (EV_A_ &w->timer);	2861	ev_timer_again (EV_A_ &w->timer);
2635		2862
2636	ev_start (EV_A_ (W)w, 1);	2863	ev_start (EV_A_ (W)w, 1);
2637		2864
2638	EV_FREQUENT_CHECK;	2865	EV_FREQUENT_CHECK;
2639	}	2866	}
…		…
2809	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3036	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2810	}	3037	}
2811	}	3038	}
2812	}	3039	}
2813		3040
		3041	static void
		3042	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3043	{
		3044	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3045
		3046	ev_embed_stop (EV_A_ w);
		3047
		3048	{
		3049	struct ev_loop *loop = w->other;
		3050
		3051	ev_loop_fork (EV_A);
		3052	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3053	}
		3054
		3055	ev_embed_start (EV_A_ w);
		3056	}
		3057
2814	#if 0	3058	#if 0
2815	static void	3059	static void
2816	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3060	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2817	{	3061	{
2818	ev_idle_stop (EV_A_ idle);	3062	ev_idle_stop (EV_A_ idle);
…		…
2825	if (expect_false (ev_is_active (w)))	3069	if (expect_false (ev_is_active (w)))
2826	return;	3070	return;
2827		3071
2828	{	3072	{
2829	struct ev_loop *loop = w->other;	3073	struct ev_loop *loop = w->other;
2830	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3074	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2831	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3075	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2832	}	3076	}
2833		3077
2834	EV_FREQUENT_CHECK;	3078	EV_FREQUENT_CHECK;
2835		3079
…		…
2838		3082
2839	ev_prepare_init (&w->prepare, embed_prepare_cb);	3083	ev_prepare_init (&w->prepare, embed_prepare_cb);
2840	ev_set_priority (&w->prepare, EV_MINPRI);	3084	ev_set_priority (&w->prepare, EV_MINPRI);
2841	ev_prepare_start (EV_A_ &w->prepare);	3085	ev_prepare_start (EV_A_ &w->prepare);
2842		3086
		3087	ev_fork_init (&w->fork, embed_fork_cb);
		3088	ev_fork_start (EV_A_ &w->fork);
		3089
2843	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3090	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2844		3091
2845	ev_start (EV_A_ (W)w, 1);	3092	ev_start (EV_A_ (W)w, 1);
2846		3093
2847	EV_FREQUENT_CHECK;	3094	EV_FREQUENT_CHECK;
…		…
2854	if (expect_false (!ev_is_active (w)))	3101	if (expect_false (!ev_is_active (w)))
2855	return;	3102	return;
2856		3103
2857	EV_FREQUENT_CHECK;	3104	EV_FREQUENT_CHECK;
2858		3105
2859	ev_io_stop (EV_A_ &w->io);	3106	ev_io_stop (EV_A_ &w->io);
2860	ev_prepare_stop (EV_A_ &w->prepare);	3107	ev_prepare_stop (EV_A_ &w->prepare);
2861		3108	ev_fork_stop (EV_A_ &w->fork);
2862	ev_stop (EV_A_ (W)w);
2863		3109
2864	EV_FREQUENT_CHECK;	3110	EV_FREQUENT_CHECK;
2865	}	3111	}
2866	#endif	3112	#endif
2867		3113
…		…
2964	once_cb (EV_P_ struct ev_once *once, int revents)	3210	once_cb (EV_P_ struct ev_once *once, int revents)
2965	{	3211	{
2966	void (*cb)(int revents, void *arg) = once->cb;	3212	void (*cb)(int revents, void *arg) = once->cb;
2967	void *arg = once->arg;	3213	void *arg = once->arg;
2968		3214
2969	ev_io_stop (EV_A_ &once->io);	3215	ev_io_stop (EV_A_ &once->io);
2970	ev_timer_stop (EV_A_ &once->to);	3216	ev_timer_stop (EV_A_ &once->to);
2971	ev_free (once);	3217	ev_free (once);
2972		3218
2973	cb (revents, arg);	3219	cb (revents, arg);
2974	}	3220	}
2975		3221
2976	static void	3222	static void
2977	once_cb_io (EV_P_ ev_io *w, int revents)	3223	once_cb_io (EV_P_ ev_io *w, int revents)
2978	{	3224	{
2979	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3225	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3226
		3227	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2980	}	3228	}
2981		3229
2982	static void	3230	static void
2983	once_cb_to (EV_P_ ev_timer *w, int revents)	3231	once_cb_to (EV_P_ ev_timer *w, int revents)
2984	{	3232	{
2985	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3233	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3234
		3235	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2986	}	3236	}
2987		3237
2988	void	3238	void
2989	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3239	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2990	{	3240	{
…		…
3012	ev_timer_set (&once->to, timeout, 0.);	3262	ev_timer_set (&once->to, timeout, 0.);
3013	ev_timer_start (EV_A_ &once->to);	3263	ev_timer_start (EV_A_ &once->to);
3014	}	3264	}
3015	}	3265	}
3016		3266
		3267	/*****************************************************************************/
		3268
		3269	#if EV_WALK_ENABLE
		3270	void
		3271	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3272	{
		3273	int i, j;
		3274	ev_watcher_list *wl, *wn;
		3275
		3276	if (types & (EV_IO | EV_EMBED))
		3277	for (i = 0; i < anfdmax; ++i)
		3278	for (wl = anfds [i].head; wl; )
		3279	{
		3280	wn = wl->next;
		3281
		3282	#if EV_EMBED_ENABLE
		3283	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3284	{
		3285	if (types & EV_EMBED)
		3286	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3287	}
		3288	else
		3289	#endif
		3290	#if EV_USE_INOTIFY
		3291	if (ev_cb ((ev_io *)wl) == infy_cb)
		3292	;
		3293	else
		3294	#endif
		3295	if ((ev_io *)wl != &pipe_w)
		3296	if (types & EV_IO)
		3297	cb (EV_A_ EV_IO, wl);
		3298
		3299	wl = wn;
		3300	}
		3301
		3302	if (types & (EV_TIMER | EV_STAT))
		3303	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3304	#if EV_STAT_ENABLE
		3305	/*TODO: timer is not always active*/
		3306	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3307	{
		3308	if (types & EV_STAT)
		3309	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3310	}
		3311	else
		3312	#endif
		3313	if (types & EV_TIMER)
		3314	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3315
		3316	#if EV_PERIODIC_ENABLE
		3317	if (types & EV_PERIODIC)
		3318	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3319	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3320	#endif
		3321
		3322	#if EV_IDLE_ENABLE
		3323	if (types & EV_IDLE)
		3324	for (j = NUMPRI; i--; )
		3325	for (i = idlecnt [j]; i--; )
		3326	cb (EV_A_ EV_IDLE, idles [j][i]);
		3327	#endif
		3328
		3329	#if EV_FORK_ENABLE
		3330	if (types & EV_FORK)
		3331	for (i = forkcnt; i--; )
		3332	if (ev_cb (forks [i]) != embed_fork_cb)
		3333	cb (EV_A_ EV_FORK, forks [i]);
		3334	#endif
		3335
		3336	#if EV_ASYNC_ENABLE
		3337	if (types & EV_ASYNC)
		3338	for (i = asynccnt; i--; )
		3339	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3340	#endif
		3341
		3342	if (types & EV_PREPARE)
		3343	for (i = preparecnt; i--; )
		3344	#if EV_EMBED_ENABLE
		3345	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3346	#endif
		3347	cb (EV_A_ EV_PREPARE, prepares [i]);
		3348
		3349	if (types & EV_CHECK)
		3350	for (i = checkcnt; i--; )
		3351	cb (EV_A_ EV_CHECK, checks [i]);
		3352
		3353	if (types & EV_SIGNAL)
		3354	for (i = 0; i < signalmax; ++i)
		3355	for (wl = signals [i].head; wl; )
		3356	{
		3357	wn = wl->next;
		3358	cb (EV_A_ EV_SIGNAL, wl);
		3359	wl = wn;
		3360	}
		3361
		3362	if (types & EV_CHILD)
		3363	for (i = EV_PID_HASHSIZE; i--; )
		3364	for (wl = childs [i]; wl; )
		3365	{
		3366	wn = wl->next;
		3367	cb (EV_A_ EV_CHILD, wl);
		3368	wl = wn;
		3369	}
		3370	/* EV_STAT 0x00001000 /* stat data changed */
		3371	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3372	}
		3373	#endif
		3374
3017	#if EV_MULTIPLICITY	3375	#if EV_MULTIPLICITY
3018	#include "ev_wrap.h"	3376	#include "ev_wrap.h"
3019	#endif	3377	#endif
3020		3378
3021	#ifdef __cplusplus	3379	#ifdef __cplusplus

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