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Comparing libev/ev.c (file contents):
Revision 1.243 by root, Fri May 9 15:52:13 2008 UTC vs.
Revision 1.288 by root, Sat Apr 25 14:12:48 2009 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# endif
		63
52	# if HAVE_CLOCK_GETTIME	64	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	65	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	66	# define EV_USE_MONOTONIC 1
55	# endif	67	# endif
56	# ifndef EV_USE_REALTIME	68	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	69	# define EV_USE_REALTIME 0
58	# endif	70	# endif
59	# else	71	# else
60	# ifndef EV_USE_MONOTONIC	72	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	73	# define EV_USE_MONOTONIC 0
62	# endif	74	# endif
…		…
126	# define EV_USE_EVENTFD 1	138	# define EV_USE_EVENTFD 1
127	# else	139	# else
128	# define EV_USE_EVENTFD 0	140	# define EV_USE_EVENTFD 0
129	# endif	141	# endif
130	# endif	142	# endif
131		143
132	#endif	144	#endif
133		145
134	#include <math.h>	146	#include <math.h>
135	#include <stdlib.h>	147	#include <stdlib.h>
136	#include <fcntl.h>	148	#include <fcntl.h>
…		…
154	#ifndef _WIN32	166	#ifndef _WIN32
155	# include <sys/time.h>	167	# include <sys/time.h>
156	# include <sys/wait.h>	168	# include <sys/wait.h>
157	# include <unistd.h>	169	# include <unistd.h>
158	#else	170	#else
		171	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	172	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	173	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	174	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	175	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	176	# endif
164	#endif	177	#endif
165		178
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	179	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		180
		181	#ifndef EV_USE_CLOCK_SYSCALL
		182	# if __linux && __GLIBC__ >= 2
		183	# define EV_USE_CLOCK_SYSCALL 1
		184	# else
		185	# define EV_USE_CLOCK_SYSCALL 0
		186	# endif
		187	#endif
		188
168	#ifndef EV_USE_MONOTONIC	189	#ifndef EV_USE_MONOTONIC
		190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		191	# define EV_USE_MONOTONIC 1
		192	# else
169	# define EV_USE_MONOTONIC 0	193	# define EV_USE_MONOTONIC 0
		194	# endif
170	#endif	195	#endif
171		196
172	#ifndef EV_USE_REALTIME	197	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	198	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174	#endif	199	#endif
175		200
176	#ifndef EV_USE_NANOSLEEP	201	#ifndef EV_USE_NANOSLEEP
		202	# if _POSIX_C_SOURCE >= 199309L
		203	# define EV_USE_NANOSLEEP 1
		204	# else
177	# define EV_USE_NANOSLEEP 0	205	# define EV_USE_NANOSLEEP 0
		206	# endif
178	#endif	207	#endif
179		208
180	#ifndef EV_USE_SELECT	209	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	210	# define EV_USE_SELECT 1
182	#endif	211	#endif
…		…
235	# else	264	# else
236	# define EV_USE_EVENTFD 0	265	# define EV_USE_EVENTFD 0
237	# endif	266	# endif
238	#endif	267	#endif
239		268
		269	#if 0 /* debugging */
		270	# define EV_VERIFY 3
		271	# define EV_USE_4HEAP 1
		272	# define EV_HEAP_CACHE_AT 1
		273	#endif
		274
		275	#ifndef EV_VERIFY
		276	# define EV_VERIFY !EV_MINIMAL
		277	#endif
		278
240	#ifndef EV_USE_4HEAP	279	#ifndef EV_USE_4HEAP
241	# define EV_USE_4HEAP !EV_MINIMAL	280	# define EV_USE_4HEAP !EV_MINIMAL
242	#endif	281	#endif
243		282
244	#ifndef EV_HEAP_CACHE_AT	283	#ifndef EV_HEAP_CACHE_AT
…		…
267	# include <sys/select.h>	306	# include <sys/select.h>
268	# endif	307	# endif
269	#endif	308	#endif
270		309
271	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
272	# include <sys/inotify.h>	313	# include <sys/inotify.h>
		314	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		315	# ifndef IN_DONT_FOLLOW
		316	# undef EV_USE_INOTIFY
		317	# define EV_USE_INOTIFY 0
		318	# endif
273	#endif	319	#endif
274		320
275	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
276	# include <winsock.h>	322	# include <winsock.h>
		323	#endif
		324
		325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		326	/* which makes programs even slower. might work on other unices, too. */
		327	#if EV_USE_CLOCK_SYSCALL
		328	# include <syscall.h>
		329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		330	# undef EV_USE_MONOTONIC
		331	# define EV_USE_MONOTONIC 1
277	#endif	332	#endif
278		333
279	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
280	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
281	# include <stdint.h>	336	# include <stdint.h>
…		…
287	}	342	}
288	# endif	343	# endif
289	#endif	344	#endif
290		345
291	/**/	346	/**/
		347
		348	#if EV_VERIFY >= 3
		349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		350	#else
		351	# define EV_FREQUENT_CHECK do { } while (0)
		352	#endif
292		353
293	/*	354	/*
294	* This is used to avoid floating point rounding problems.	355	* This is used to avoid floating point rounding problems.
295	* It is added to ev_rt_now when scheduling periodics	356	* It is added to ev_rt_now when scheduling periodics
296	* to ensure progress, time-wise, even when rounding	357	* to ensure progress, time-wise, even when rounding
…		…
336	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
337		398
338	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
339	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
340		401
341	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
342	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	403	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
343	/* giving it a reasonably high chance of working on typical architetcures */	404	/* giving it a reasonably high chance of working on typical architetcures */
		405	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		406	#endif
		407
		408	#if EV_USE_MONOTONIC
344	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
345	#endif	410	#endif
346		411
347	#ifdef _WIN32	412	#ifdef _WIN32
348	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
357	{	422	{
358	syserr_cb = cb;	423	syserr_cb = cb;
359	}	424	}
360		425
361	static void noinline	426	static void noinline
362	syserr (const char *msg)	427	ev_syserr (const char *msg)
363	{	428	{
364	if (!msg)	429	if (!msg)
365	msg = "(libev) system error";	430	msg = "(libev) system error";
366		431
367	if (syserr_cb)	432	if (syserr_cb)
…		…
413	#define ev_malloc(size) ev_realloc (0, (size))	478	#define ev_malloc(size) ev_realloc (0, (size))
414	#define ev_free(ptr) ev_realloc ((ptr), 0)	479	#define ev_free(ptr) ev_realloc ((ptr), 0)
415		480
416	/*****************************************************************************/	481	/*****************************************************************************/
417		482
		483	/* file descriptor info structure */
418	typedef struct	484	typedef struct
419	{	485	{
420	WL head;	486	WL head;
421	unsigned char events;	487	unsigned char events; /* the events watched for */
		488	unsigned char reify; /* flag set when this ANFD needs reification */
		489	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
422	unsigned char reify;	490	unsigned char unused;
		491	#if EV_USE_EPOLL
		492	unsigned int egen; /* generation counter to counter epoll bugs */
		493	#endif
423	#if EV_SELECT_IS_WINSOCKET	494	#if EV_SELECT_IS_WINSOCKET
424	SOCKET handle;	495	SOCKET handle;
425	#endif	496	#endif
426	} ANFD;	497	} ANFD;
427		498
		499	/* stores the pending event set for a given watcher */
428	typedef struct	500	typedef struct
429	{	501	{
430	W w;	502	W w;
431	int events;	503	int events; /* the pending event set for the given watcher */
432	} ANPENDING;	504	} ANPENDING;
433		505
434	#if EV_USE_INOTIFY	506	#if EV_USE_INOTIFY
435	/* hash table entry per inotify-id */	507	/* hash table entry per inotify-id */
436	typedef struct	508	typedef struct
…		…
439	} ANFS;	511	} ANFS;
440	#endif	512	#endif
441		513
442	/* Heap Entry */	514	/* Heap Entry */
443	#if EV_HEAP_CACHE_AT	515	#if EV_HEAP_CACHE_AT
		516	/* a heap element */
444	typedef struct {	517	typedef struct {
445	ev_tstamp at;	518	ev_tstamp at;
446	WT w;	519	WT w;
447	} ANHE;	520	} ANHE;
448		521
449	#define ANHE_w(he) (he).w /* access watcher, read-write */	522	#define ANHE_w(he) (he).w /* access watcher, read-write */
450	#define ANHE_at(he) (he).at /* access cached at, read-only */	523	#define ANHE_at(he) (he).at /* access cached at, read-only */
451	#define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */	524	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
452	#else	525	#else
		526	/* a heap element */
453	typedef WT ANHE;	527	typedef WT ANHE;
454		528
455	#define ANHE_w(he) (he)	529	#define ANHE_w(he) (he)
456	#define ANHE_at(he) (he)->at	530	#define ANHE_at(he) (he)->at
457	#define ANHE_at_set(he)	531	#define ANHE_at_cache(he)
458	#endif	532	#endif
459		533
460	#if EV_MULTIPLICITY	534	#if EV_MULTIPLICITY
461		535
462	struct ev_loop	536	struct ev_loop
…		…
487		561
488	ev_tstamp	562	ev_tstamp
489	ev_time (void)	563	ev_time (void)
490	{	564	{
491	#if EV_USE_REALTIME	565	#if EV_USE_REALTIME
		566	if (expect_true (have_realtime))
		567	{
492	struct timespec ts;	568	struct timespec ts;
493	clock_gettime (CLOCK_REALTIME, &ts);	569	clock_gettime (CLOCK_REALTIME, &ts);
494	return ts.tv_sec + ts.tv_nsec * 1e-9;	570	return ts.tv_sec + ts.tv_nsec * 1e-9;
495	#else	571	}
		572	#endif
		573
496	struct timeval tv;	574	struct timeval tv;
497	gettimeofday (&tv, 0);	575	gettimeofday (&tv, 0);
498	return tv.tv_sec + tv.tv_usec * 1e-6;	576	return tv.tv_sec + tv.tv_usec * 1e-6;
499	#endif
500	}	577	}
501		578
502	ev_tstamp inline_size	579	inline_size ev_tstamp
503	get_clock (void)	580	get_clock (void)
504	{	581	{
505	#if EV_USE_MONOTONIC	582	#if EV_USE_MONOTONIC
506	if (expect_true (have_monotonic))	583	if (expect_true (have_monotonic))
507	{	584	{
…		…
540	struct timeval tv;	617	struct timeval tv;
541		618
542	tv.tv_sec = (time_t)delay;	619	tv.tv_sec = (time_t)delay;
543	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	620	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
544		621
		622	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		623	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		624	/* by older ones */
545	select (0, 0, 0, 0, &tv);	625	select (0, 0, 0, 0, &tv);
546	#endif	626	#endif
547	}	627	}
548	}	628	}
549		629
550	/*****************************************************************************/	630	/*****************************************************************************/
551		631
552	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	632	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
553		633
554	int inline_size	634	/* find a suitable new size for the given array, */
		635	/* hopefully by rounding to a ncie-to-malloc size */
		636	inline_size int
555	array_nextsize (int elem, int cur, int cnt)	637	array_nextsize (int elem, int cur, int cnt)
556	{	638	{
557	int ncur = cur + 1;	639	int ncur = cur + 1;
558		640
559	do	641	do
…		…
576	array_realloc (int elem, void *base, int *cur, int cnt)	658	array_realloc (int elem, void *base, int *cur, int cnt)
577	{	659	{
578	*cur = array_nextsize (elem, *cur, cnt);	660	*cur = array_nextsize (elem, *cur, cnt);
579	return ev_realloc (base, elem * *cur);	661	return ev_realloc (base, elem * *cur);
580	}	662	}
		663
		664	#define array_init_zero(base,count) \
		665	memset ((void *)(base), 0, sizeof (*(base)) * (count))
581		666
582	#define array_needsize(type,base,cur,cnt,init) \	667	#define array_needsize(type,base,cur,cnt,init) \
583	if (expect_false ((cnt) > (cur))) \	668	if (expect_false ((cnt) > (cur))) \
584	{ \	669	{ \
585	int ocur_ = (cur); \	670	int ocur_ = (cur); \
…		…
597	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	682	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
598	}	683	}
599	#endif	684	#endif
600		685
601	#define array_free(stem, idx) \	686	#define array_free(stem, idx) \
602	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	687	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
603		688
604	/*****************************************************************************/	689	/*****************************************************************************/
		690
		691	/* dummy callback for pending events */
		692	static void noinline
		693	pendingcb (EV_P_ ev_prepare *w, int revents)
		694	{
		695	}
605		696
606	void noinline	697	void noinline
607	ev_feed_event (EV_P_ void *w, int revents)	698	ev_feed_event (EV_P_ void *w, int revents)
608	{	699	{
609	W w_ = (W)w;	700	W w_ = (W)w;
…		…
618	pendings [pri][w_->pending - 1].w = w_;	709	pendings [pri][w_->pending - 1].w = w_;
619	pendings [pri][w_->pending - 1].events = revents;	710	pendings [pri][w_->pending - 1].events = revents;
620	}	711	}
621	}	712	}
622		713
623	void inline_speed	714	inline_speed void
		715	feed_reverse (EV_P_ W w)
		716	{
		717	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		718	rfeeds [rfeedcnt++] = w;
		719	}
		720
		721	inline_size void
		722	feed_reverse_done (EV_P_ int revents)
		723	{
		724	do
		725	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		726	while (rfeedcnt);
		727	}
		728
		729	inline_speed void
624	queue_events (EV_P_ W *events, int eventcnt, int type)	730	queue_events (EV_P_ W *events, int eventcnt, int type)
625	{	731	{
626	int i;	732	int i;
627		733
628	for (i = 0; i < eventcnt; ++i)	734	for (i = 0; i < eventcnt; ++i)
629	ev_feed_event (EV_A_ events [i], type);	735	ev_feed_event (EV_A_ events [i], type);
630	}	736	}
631		737
632	/*****************************************************************************/	738	/*****************************************************************************/
633		739
634	void inline_size	740	inline_speed void
635	anfds_init (ANFD *base, int count)
636	{
637	while (count--)
638	{
639	base->head = 0;
640	base->events = EV_NONE;
641	base->reify = 0;
642
643	++base;
644	}
645	}
646
647	void inline_speed
648	fd_event (EV_P_ int fd, int revents)	741	fd_event (EV_P_ int fd, int revents)
649	{	742	{
650	ANFD *anfd = anfds + fd;	743	ANFD *anfd = anfds + fd;
651	ev_io *w;	744	ev_io *w;
652		745
…		…
664	{	757	{
665	if (fd >= 0 && fd < anfdmax)	758	if (fd >= 0 && fd < anfdmax)
666	fd_event (EV_A_ fd, revents);	759	fd_event (EV_A_ fd, revents);
667	}	760	}
668		761
669	void inline_size	762	/* make sure the external fd watch events are in-sync */
		763	/* with the kernel/libev internal state */
		764	inline_size void
670	fd_reify (EV_P)	765	fd_reify (EV_P)
671	{	766	{
672	int i;	767	int i;
673		768
674	for (i = 0; i < fdchangecnt; ++i)	769	for (i = 0; i < fdchangecnt; ++i)
…		…
683	events |= (unsigned char)w->events;	778	events |= (unsigned char)w->events;
684		779
685	#if EV_SELECT_IS_WINSOCKET	780	#if EV_SELECT_IS_WINSOCKET
686	if (events)	781	if (events)
687	{	782	{
688	unsigned long argp;	783	unsigned long arg;
689	#ifdef EV_FD_TO_WIN32_HANDLE	784	#ifdef EV_FD_TO_WIN32_HANDLE
690	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	785	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
691	#else	786	#else
692	anfd->handle = _get_osfhandle (fd);	787	anfd->handle = _get_osfhandle (fd);
693	#endif	788	#endif
694	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	789	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
695	}	790	}
696	#endif	791	#endif
697		792
698	{	793	{
699	unsigned char o_events = anfd->events;	794	unsigned char o_events = anfd->events;
700	unsigned char o_reify = anfd->reify;	795	unsigned char o_reify = anfd->reify;
701		796
702	anfd->reify = 0;	797	anfd->reify = 0;
703	anfd->events = events;	798	anfd->events = events;
704		799
705	if (o_events != events || o_reify & EV_IOFDSET)	800	if (o_events != events || o_reify & EV__IOFDSET)
706	backend_modify (EV_A_ fd, o_events, events);	801	backend_modify (EV_A_ fd, o_events, events);
707	}	802	}
708	}	803	}
709		804
710	fdchangecnt = 0;	805	fdchangecnt = 0;
711	}	806	}
712		807
713	void inline_size	808	/* something about the given fd changed */
		809	inline_size void
714	fd_change (EV_P_ int fd, int flags)	810	fd_change (EV_P_ int fd, int flags)
715	{	811	{
716	unsigned char reify = anfds [fd].reify;	812	unsigned char reify = anfds [fd].reify;
717	anfds [fd].reify |= flags;	813	anfds [fd].reify |= flags;
718		814
…		…
722	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	818	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
723	fdchanges [fdchangecnt - 1] = fd;	819	fdchanges [fdchangecnt - 1] = fd;
724	}	820	}
725	}	821	}
726		822
727	void inline_speed	823	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		824	inline_speed void
728	fd_kill (EV_P_ int fd)	825	fd_kill (EV_P_ int fd)
729	{	826	{
730	ev_io *w;	827	ev_io *w;
731		828
732	while ((w = (ev_io *)anfds [fd].head))	829	while ((w = (ev_io *)anfds [fd].head))
…		…
734	ev_io_stop (EV_A_ w);	831	ev_io_stop (EV_A_ w);
735	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	832	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
736	}	833	}
737	}	834	}
738		835
739	int inline_size	836	/* check whether the given fd is atcually valid, for error recovery */
		837	inline_size int
740	fd_valid (int fd)	838	fd_valid (int fd)
741	{	839	{
742	#ifdef _WIN32	840	#ifdef _WIN32
743	return _get_osfhandle (fd) != -1;	841	return _get_osfhandle (fd) != -1;
744	#else	842	#else
…		…
752	{	850	{
753	int fd;	851	int fd;
754		852
755	for (fd = 0; fd < anfdmax; ++fd)	853	for (fd = 0; fd < anfdmax; ++fd)
756	if (anfds [fd].events)	854	if (anfds [fd].events)
757	if (!fd_valid (fd) == -1 && errno == EBADF)	855	if (!fd_valid (fd) && errno == EBADF)
758	fd_kill (EV_A_ fd);	856	fd_kill (EV_A_ fd);
759	}	857	}
760		858
761	/* called on ENOMEM in select/poll to kill some fds and retry */	859	/* called on ENOMEM in select/poll to kill some fds and retry */
762	static void noinline	860	static void noinline
…		…
780		878
781	for (fd = 0; fd < anfdmax; ++fd)	879	for (fd = 0; fd < anfdmax; ++fd)
782	if (anfds [fd].events)	880	if (anfds [fd].events)
783	{	881	{
784	anfds [fd].events = 0;	882	anfds [fd].events = 0;
		883	anfds [fd].emask = 0;
785	fd_change (EV_A_ fd, EV_IOFDSET | 1);	884	fd_change (EV_A_ fd, EV__IOFDSET | 1);
786	}	885	}
787	}	886	}
788		887
789	/*****************************************************************************/	888	/*****************************************************************************/
790		889
…		…
802	*/	901	*/
803	#if EV_USE_4HEAP	902	#if EV_USE_4HEAP
804		903
805	#define DHEAP 4	904	#define DHEAP 4
806	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	905	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
807		906	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
808	/* towards the root */	907	#define UPHEAP_DONE(p,k) ((p) == (k))
809	void inline_speed
810	upheap (ANHE *heap, int k)
811	{
812	ANHE he = heap [k];
813
814	for (;;)
815	{
816	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
817
818	if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
819	break;
820
821	heap [k] = heap [p];
822	ev_active (ANHE_w (heap [k])) = k;
823	k = p;
824	}
825
826	ev_active (ANHE_w (he)) = k;
827	heap [k] = he;
828	}
829		908
830	/* away from the root */	909	/* away from the root */
831	void inline_speed	910	inline_speed void
832	downheap (ANHE *heap, int N, int k)	911	downheap (ANHE *heap, int N, int k)
833	{	912	{
834	ANHE he = heap [k];	913	ANHE he = heap [k];
835	ANHE *E = heap + N + HEAP0;	914	ANHE *E = heap + N + HEAP0;
836		915
837	for (;;)	916	for (;;)
838	{	917	{
839	ev_tstamp minat;	918	ev_tstamp minat;
840	ANHE *minpos;	919	ANHE *minpos;
841	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	920	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
842		921
843	// find minimum child	922	/* find minimum child */
844	if (expect_true (pos + DHEAP - 1 < E))	923	if (expect_true (pos + DHEAP - 1 < E))
845	{	924	{
846	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	925	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
847	if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	926	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
848	if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	927	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
849	if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	928	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
850	}	929	}
851	else if (pos < E)	930	else if (pos < E)
852	{	931	{
853	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	932	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
854	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	933	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
…		…
859	break;	938	break;
860		939
861	if (ANHE_at (he) <= minat)	940	if (ANHE_at (he) <= minat)
862	break;	941	break;
863		942
		943	heap [k] = *minpos;
864	ev_active (ANHE_w (*minpos)) = k;	944	ev_active (ANHE_w (*minpos)) = k;
865	heap [k] = *minpos;
866		945
867	k = minpos - heap;	946	k = minpos - heap;
868	}	947	}
869		948
		949	heap [k] = he;
870	ev_active (ANHE_w (he)) = k;	950	ev_active (ANHE_w (he)) = k;
871	heap [k] = he;
872	}	951	}
873		952
874	#else // 4HEAP	953	#else /* 4HEAP */
875		954
876	#define HEAP0 1	955	#define HEAP0 1
		956	#define HPARENT(k) ((k) >> 1)
		957	#define UPHEAP_DONE(p,k) (!(p))
877		958
878	/* towards the root */	959	/* away from the root */
879	void inline_speed	960	inline_speed void
880	upheap (ANHE *heap, int k)	961	downheap (ANHE *heap, int N, int k)
881	{	962	{
882	ANHE he = heap [k];	963	ANHE he = heap [k];
883		964
884	for (;;)	965	for (;;)
885	{	966	{
886	int p = k >> 1;	967	int c = k << 1;
887		968
888	/* maybe we could use a dummy element at heap [0]? */	969	if (c > N + HEAP0 - 1)
889	if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
890	break;	970	break;
891		971
892	heap [k] = heap [p];
893	ev_active (ANHE_w (heap [k])) = k;
894	k = p;
895	}
896
897	heap [k] = he;
898	ev_active (ANHE_w (heap [k])) = k;
899	}
900
901	/* away from the root */
902	void inline_speed
903	downheap (ANHE *heap, int N, int k)
904	{
905	ANHE he = heap [k];
906
907	for (;;)
908	{
909	int c = k << 1;
910
911	if (c > N)
912	break;
913
914	c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	972	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
915	? 1 : 0;	973	? 1 : 0;
916		974
917	if (ANHE_at (he) <= ANHE_at (heap [c]))	975	if (ANHE_at (he) <= ANHE_at (heap [c]))
918	break;	976	break;
919		977
…		…
926	heap [k] = he;	984	heap [k] = he;
927	ev_active (ANHE_w (he)) = k;	985	ev_active (ANHE_w (he)) = k;
928	}	986	}
929	#endif	987	#endif
930		988
931	void inline_size	989	/* towards the root */
		990	inline_speed void
		991	upheap (ANHE *heap, int k)
		992	{
		993	ANHE he = heap [k];
		994
		995	for (;;)
		996	{
		997	int p = HPARENT (k);
		998
		999	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		1000	break;
		1001
		1002	heap [k] = heap [p];
		1003	ev_active (ANHE_w (heap [k])) = k;
		1004	k = p;
		1005	}
		1006
		1007	heap [k] = he;
		1008	ev_active (ANHE_w (he)) = k;
		1009	}
		1010
		1011	/* move an element suitably so it is in a correct place */
		1012	inline_size void
932	adjustheap (ANHE *heap, int N, int k)	1013	adjustheap (ANHE *heap, int N, int k)
933	{	1014	{
		1015	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
934	upheap (heap, k);	1016	upheap (heap, k);
		1017	else
935	downheap (heap, N, k);	1018	downheap (heap, N, k);
		1019	}
		1020
		1021	/* rebuild the heap: this function is used only once and executed rarely */
		1022	inline_size void
		1023	reheap (ANHE *heap, int N)
		1024	{
		1025	int i;
		1026
		1027	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		1028	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		1029	for (i = 0; i < N; ++i)
		1030	upheap (heap, i + HEAP0);
936	}	1031	}
937		1032
938	/*****************************************************************************/	1033	/*****************************************************************************/
939		1034
		1035	/* associate signal watchers to a signal signal */
940	typedef struct	1036	typedef struct
941	{	1037	{
942	WL head;	1038	WL head;
943	EV_ATOMIC_T gotsig;	1039	EV_ATOMIC_T gotsig;
944	} ANSIG;	1040	} ANSIG;
…		…
946	static ANSIG *signals;	1042	static ANSIG *signals;
947	static int signalmax;	1043	static int signalmax;
948		1044
949	static EV_ATOMIC_T gotsig;	1045	static EV_ATOMIC_T gotsig;
950		1046
951	void inline_size
952	signals_init (ANSIG *base, int count)
953	{
954	while (count--)
955	{
956	base->head = 0;
957	base->gotsig = 0;
958
959	++base;
960	}
961	}
962
963	/*****************************************************************************/	1047	/*****************************************************************************/
964		1048
965	void inline_speed	1049	/* used to prepare libev internal fd's */
		1050	/* this is not fork-safe */
		1051	inline_speed void
966	fd_intern (int fd)	1052	fd_intern (int fd)
967	{	1053	{
968	#ifdef _WIN32	1054	#ifdef _WIN32
969	int arg = 1;	1055	unsigned long arg = 1;
970	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1056	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
971	#else	1057	#else
972	fcntl (fd, F_SETFD, FD_CLOEXEC);	1058	fcntl (fd, F_SETFD, FD_CLOEXEC);
973	fcntl (fd, F_SETFL, O_NONBLOCK);	1059	fcntl (fd, F_SETFL, O_NONBLOCK);
974	#endif	1060	#endif
975	}	1061	}
976		1062
977	static void noinline	1063	static void noinline
978	evpipe_init (EV_P)	1064	evpipe_init (EV_P)
979	{	1065	{
980	if (!ev_is_active (&pipeev))	1066	if (!ev_is_active (&pipe_w))
981	{	1067	{
982	#if EV_USE_EVENTFD	1068	#if EV_USE_EVENTFD
983	if ((evfd = eventfd (0, 0)) >= 0)	1069	if ((evfd = eventfd (0, 0)) >= 0)
984	{	1070	{
985	evpipe [0] = -1;	1071	evpipe [0] = -1;
986	fd_intern (evfd);	1072	fd_intern (evfd);
987	ev_io_set (&pipeev, evfd, EV_READ);	1073	ev_io_set (&pipe_w, evfd, EV_READ);
988	}	1074	}
989	else	1075	else
990	#endif	1076	#endif
991	{	1077	{
992	while (pipe (evpipe))	1078	while (pipe (evpipe))
993	syserr ("(libev) error creating signal/async pipe");	1079	ev_syserr ("(libev) error creating signal/async pipe");
994		1080
995	fd_intern (evpipe [0]);	1081	fd_intern (evpipe [0]);
996	fd_intern (evpipe [1]);	1082	fd_intern (evpipe [1]);
997	ev_io_set (&pipeev, evpipe [0], EV_READ);	1083	ev_io_set (&pipe_w, evpipe [0], EV_READ);
998	}	1084	}
999		1085
1000	ev_io_start (EV_A_ &pipeev);	1086	ev_io_start (EV_A_ &pipe_w);
1001	ev_unref (EV_A); /* watcher should not keep loop alive */	1087	ev_unref (EV_A); /* watcher should not keep loop alive */
1002	}	1088	}
1003	}	1089	}
1004		1090
1005	void inline_size	1091	inline_size void
1006	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1092	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1007	{	1093	{
1008	if (!*flag)	1094	if (!*flag)
1009	{	1095	{
1010	int old_errno = errno; /* save errno because write might clobber it */	1096	int old_errno = errno; /* save errno because write might clobber it */
…		…
1023		1109
1024	errno = old_errno;	1110	errno = old_errno;
1025	}	1111	}
1026	}	1112	}
1027		1113
		1114	/* called whenever the libev signal pipe */
		1115	/* got some events (signal, async) */
1028	static void	1116	static void
1029	pipecb (EV_P_ ev_io *iow, int revents)	1117	pipecb (EV_P_ ev_io *iow, int revents)
1030	{	1118	{
1031	#if EV_USE_EVENTFD	1119	#if EV_USE_EVENTFD
1032	if (evfd >= 0)	1120	if (evfd >= 0)
…		…
1088	ev_feed_signal_event (EV_P_ int signum)	1176	ev_feed_signal_event (EV_P_ int signum)
1089	{	1177	{
1090	WL w;	1178	WL w;
1091		1179
1092	#if EV_MULTIPLICITY	1180	#if EV_MULTIPLICITY
1093	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1181	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1094	#endif	1182	#endif
1095		1183
1096	--signum;	1184	--signum;
1097		1185
1098	if (signum < 0 || signum >= signalmax)	1186	if (signum < 0 || signum >= signalmax)
…		…
1114		1202
1115	#ifndef WIFCONTINUED	1203	#ifndef WIFCONTINUED
1116	# define WIFCONTINUED(status) 0	1204	# define WIFCONTINUED(status) 0
1117	#endif	1205	#endif
1118		1206
1119	void inline_speed	1207	/* handle a single child status event */
		1208	inline_speed void
1120	child_reap (EV_P_ int chain, int pid, int status)	1209	child_reap (EV_P_ int chain, int pid, int status)
1121	{	1210	{
1122	ev_child *w;	1211	ev_child *w;
1123	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1212	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1124		1213
…		…
1137		1226
1138	#ifndef WCONTINUED	1227	#ifndef WCONTINUED
1139	# define WCONTINUED 0	1228	# define WCONTINUED 0
1140	#endif	1229	#endif
1141		1230
		1231	/* called on sigchld etc., calls waitpid */
1142	static void	1232	static void
1143	childcb (EV_P_ ev_signal *sw, int revents)	1233	childcb (EV_P_ ev_signal *sw, int revents)
1144	{	1234	{
1145	int pid, status;	1235	int pid, status;
1146		1236
…		…
1227	/* kqueue is borked on everything but netbsd apparently */	1317	/* kqueue is borked on everything but netbsd apparently */
1228	/* it usually doesn't work correctly on anything but sockets and pipes */	1318	/* it usually doesn't work correctly on anything but sockets and pipes */
1229	flags &= ~EVBACKEND_KQUEUE;	1319	flags &= ~EVBACKEND_KQUEUE;
1230	#endif	1320	#endif
1231	#ifdef __APPLE__	1321	#ifdef __APPLE__
1232	// flags &= ~EVBACKEND_KQUEUE; for documentation	1322	/* only select works correctly on that "unix-certified" platform */
1233	flags &= ~EVBACKEND_POLL;	1323	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1324	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1234	#endif	1325	#endif
1235		1326
1236	return flags;	1327	return flags;
1237	}	1328	}
1238		1329
…		…
1270	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1361	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1271	{	1362	{
1272	timeout_blocktime = interval;	1363	timeout_blocktime = interval;
1273	}	1364	}
1274		1365
		1366	/* initialise a loop structure, must be zero-initialised */
1275	static void noinline	1367	static void noinline
1276	loop_init (EV_P_ unsigned int flags)	1368	loop_init (EV_P_ unsigned int flags)
1277	{	1369	{
1278	if (!backend)	1370	if (!backend)
1279	{	1371	{
		1372	#if EV_USE_REALTIME
		1373	if (!have_realtime)
		1374	{
		1375	struct timespec ts;
		1376
		1377	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1378	have_realtime = 1;
		1379	}
		1380	#endif
		1381
1280	#if EV_USE_MONOTONIC	1382	#if EV_USE_MONOTONIC
		1383	if (!have_monotonic)
1281	{	1384	{
1282	struct timespec ts;	1385	struct timespec ts;
		1386
1283	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1387	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1284	have_monotonic = 1;	1388	have_monotonic = 1;
1285	}	1389	}
1286	#endif	1390	#endif
1287		1391
1288	ev_rt_now = ev_time ();	1392	ev_rt_now = ev_time ();
1289	mn_now = get_clock ();	1393	mn_now = get_clock ();
1290	now_floor = mn_now;	1394	now_floor = mn_now;
…		…
1327	#endif	1431	#endif
1328	#if EV_USE_SELECT	1432	#if EV_USE_SELECT
1329	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1433	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1330	#endif	1434	#endif
1331		1435
		1436	ev_prepare_init (&pending_w, pendingcb);
		1437
1332	ev_init (&pipeev, pipecb);	1438	ev_init (&pipe_w, pipecb);
1333	ev_set_priority (&pipeev, EV_MAXPRI);	1439	ev_set_priority (&pipe_w, EV_MAXPRI);
1334	}	1440	}
1335	}	1441	}
1336		1442
		1443	/* free up a loop structure */
1337	static void noinline	1444	static void noinline
1338	loop_destroy (EV_P)	1445	loop_destroy (EV_P)
1339	{	1446	{
1340	int i;	1447	int i;
1341		1448
1342	if (ev_is_active (&pipeev))	1449	if (ev_is_active (&pipe_w))
1343	{	1450	{
1344	ev_ref (EV_A); /* signal watcher */	1451	ev_ref (EV_A); /* signal watcher */
1345	ev_io_stop (EV_A_ &pipeev);	1452	ev_io_stop (EV_A_ &pipe_w);
1346		1453
1347	#if EV_USE_EVENTFD	1454	#if EV_USE_EVENTFD
1348	if (evfd >= 0)	1455	if (evfd >= 0)
1349	close (evfd);	1456	close (evfd);
1350	#endif	1457	#endif
…		…
1389	}	1496	}
1390		1497
1391	ev_free (anfds); anfdmax = 0;	1498	ev_free (anfds); anfdmax = 0;
1392		1499
1393	/* have to use the microsoft-never-gets-it-right macro */	1500	/* have to use the microsoft-never-gets-it-right macro */
		1501	array_free (rfeed, EMPTY);
1394	array_free (fdchange, EMPTY);	1502	array_free (fdchange, EMPTY);
1395	array_free (timer, EMPTY);	1503	array_free (timer, EMPTY);
1396	#if EV_PERIODIC_ENABLE	1504	#if EV_PERIODIC_ENABLE
1397	array_free (periodic, EMPTY);	1505	array_free (periodic, EMPTY);
1398	#endif	1506	#endif
…		…
1407		1515
1408	backend = 0;	1516	backend = 0;
1409	}	1517	}
1410		1518
1411	#if EV_USE_INOTIFY	1519	#if EV_USE_INOTIFY
1412	void inline_size infy_fork (EV_P);	1520	inline_size void infy_fork (EV_P);
1413	#endif	1521	#endif
1414		1522
1415	void inline_size	1523	inline_size void
1416	loop_fork (EV_P)	1524	loop_fork (EV_P)
1417	{	1525	{
1418	#if EV_USE_PORT	1526	#if EV_USE_PORT
1419	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1527	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1420	#endif	1528	#endif
…		…
1426	#endif	1534	#endif
1427	#if EV_USE_INOTIFY	1535	#if EV_USE_INOTIFY
1428	infy_fork (EV_A);	1536	infy_fork (EV_A);
1429	#endif	1537	#endif
1430		1538
1431	if (ev_is_active (&pipeev))	1539	if (ev_is_active (&pipe_w))
1432	{	1540	{
1433	/* this "locks" the handlers against writing to the pipe */	1541	/* this "locks" the handlers against writing to the pipe */
1434	/* while we modify the fd vars */	1542	/* while we modify the fd vars */
1435	gotsig = 1;	1543	gotsig = 1;
1436	#if EV_ASYNC_ENABLE	1544	#if EV_ASYNC_ENABLE
1437	gotasync = 1;	1545	gotasync = 1;
1438	#endif	1546	#endif
1439		1547
1440	ev_ref (EV_A);	1548	ev_ref (EV_A);
1441	ev_io_stop (EV_A_ &pipeev);	1549	ev_io_stop (EV_A_ &pipe_w);
1442		1550
1443	#if EV_USE_EVENTFD	1551	#if EV_USE_EVENTFD
1444	if (evfd >= 0)	1552	if (evfd >= 0)
1445	close (evfd);	1553	close (evfd);
1446	#endif	1554	#endif
…		…
1451	close (evpipe [1]);	1559	close (evpipe [1]);
1452	}	1560	}
1453		1561
1454	evpipe_init (EV_A);	1562	evpipe_init (EV_A);
1455	/* now iterate over everything, in case we missed something */	1563	/* now iterate over everything, in case we missed something */
1456	pipecb (EV_A_ &pipeev, EV_READ);	1564	pipecb (EV_A_ &pipe_w, EV_READ);
1457	}	1565	}
1458		1566
1459	postfork = 0;	1567	postfork = 0;
1460	}	1568	}
1461		1569
1462	#if EV_MULTIPLICITY	1570	#if EV_MULTIPLICITY
		1571
1463	struct ev_loop *	1572	struct ev_loop *
1464	ev_loop_new (unsigned int flags)	1573	ev_loop_new (unsigned int flags)
1465	{	1574	{
1466	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1575	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1467		1576
…		…
1485	void	1594	void
1486	ev_loop_fork (EV_P)	1595	ev_loop_fork (EV_P)
1487	{	1596	{
1488	postfork = 1; /* must be in line with ev_default_fork */	1597	postfork = 1; /* must be in line with ev_default_fork */
1489	}	1598	}
		1599
		1600	#if EV_VERIFY
		1601	static void noinline
		1602	verify_watcher (EV_P_ W w)
		1603	{
		1604	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1605
		1606	if (w->pending)
		1607	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1608	}
		1609
		1610	static void noinline
		1611	verify_heap (EV_P_ ANHE *heap, int N)
		1612	{
		1613	int i;
		1614
		1615	for (i = HEAP0; i < N + HEAP0; ++i)
		1616	{
		1617	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1618	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1619	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1620
		1621	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1622	}
		1623	}
		1624
		1625	static void noinline
		1626	array_verify (EV_P_ W *ws, int cnt)
		1627	{
		1628	while (cnt--)
		1629	{
		1630	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1631	verify_watcher (EV_A_ ws [cnt]);
		1632	}
		1633	}
		1634	#endif
		1635
		1636	void
		1637	ev_loop_verify (EV_P)
		1638	{
		1639	#if EV_VERIFY
		1640	int i;
		1641	WL w;
		1642
		1643	assert (activecnt >= -1);
		1644
		1645	assert (fdchangemax >= fdchangecnt);
		1646	for (i = 0; i < fdchangecnt; ++i)
		1647	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1648
		1649	assert (anfdmax >= 0);
		1650	for (i = 0; i < anfdmax; ++i)
		1651	for (w = anfds [i].head; w; w = w->next)
		1652	{
		1653	verify_watcher (EV_A_ (W)w);
		1654	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1655	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1656	}
		1657
		1658	assert (timermax >= timercnt);
		1659	verify_heap (EV_A_ timers, timercnt);
		1660
		1661	#if EV_PERIODIC_ENABLE
		1662	assert (periodicmax >= periodiccnt);
		1663	verify_heap (EV_A_ periodics, periodiccnt);
		1664	#endif
		1665
		1666	for (i = NUMPRI; i--; )
		1667	{
		1668	assert (pendingmax [i] >= pendingcnt [i]);
		1669	#if EV_IDLE_ENABLE
		1670	assert (idleall >= 0);
		1671	assert (idlemax [i] >= idlecnt [i]);
		1672	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1673	#endif
		1674	}
		1675
		1676	#if EV_FORK_ENABLE
		1677	assert (forkmax >= forkcnt);
		1678	array_verify (EV_A_ (W *)forks, forkcnt);
		1679	#endif
		1680
		1681	#if EV_ASYNC_ENABLE
		1682	assert (asyncmax >= asynccnt);
		1683	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1684	#endif
		1685
		1686	assert (preparemax >= preparecnt);
		1687	array_verify (EV_A_ (W *)prepares, preparecnt);
		1688
		1689	assert (checkmax >= checkcnt);
		1690	array_verify (EV_A_ (W *)checks, checkcnt);
		1691
		1692	# if 0
		1693	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1694	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1490	#endif	1695	# endif
		1696	#endif
		1697	}
		1698
		1699	#endif /* multiplicity */
1491		1700
1492	#if EV_MULTIPLICITY	1701	#if EV_MULTIPLICITY
1493	struct ev_loop *	1702	struct ev_loop *
1494	ev_default_loop_init (unsigned int flags)	1703	ev_default_loop_init (unsigned int flags)
1495	#else	1704	#else
…		…
1528	{	1737	{
1529	#if EV_MULTIPLICITY	1738	#if EV_MULTIPLICITY
1530	struct ev_loop *loop = ev_default_loop_ptr;	1739	struct ev_loop *loop = ev_default_loop_ptr;
1531	#endif	1740	#endif
1532		1741
		1742	ev_default_loop_ptr = 0;
		1743
1533	#ifndef _WIN32	1744	#ifndef _WIN32
1534	ev_ref (EV_A); /* child watcher */	1745	ev_ref (EV_A); /* child watcher */
1535	ev_signal_stop (EV_A_ &childev);	1746	ev_signal_stop (EV_A_ &childev);
1536	#endif	1747	#endif
1537		1748
…		…
1543	{	1754	{
1544	#if EV_MULTIPLICITY	1755	#if EV_MULTIPLICITY
1545	struct ev_loop *loop = ev_default_loop_ptr;	1756	struct ev_loop *loop = ev_default_loop_ptr;
1546	#endif	1757	#endif
1547		1758
1548	if (backend)
1549	postfork = 1; /* must be in line with ev_loop_fork */	1759	postfork = 1; /* must be in line with ev_loop_fork */
1550	}	1760	}
1551		1761
1552	/*****************************************************************************/	1762	/*****************************************************************************/
1553		1763
1554	void	1764	void
1555	ev_invoke (EV_P_ void *w, int revents)	1765	ev_invoke (EV_P_ void *w, int revents)
1556	{	1766	{
1557	EV_CB_INVOKE ((W)w, revents);	1767	EV_CB_INVOKE ((W)w, revents);
1558	}	1768	}
1559		1769
1560	void inline_speed	1770	inline_speed void
1561	call_pending (EV_P)	1771	call_pending (EV_P)
1562	{	1772	{
1563	int pri;	1773	int pri;
1564		1774
1565	for (pri = NUMPRI; pri--; )	1775	for (pri = NUMPRI; pri--; )
1566	while (pendingcnt [pri])	1776	while (pendingcnt [pri])
1567	{	1777	{
1568	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1778	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1569		1779
1570	if (expect_true (p->w))
1571	{
1572	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1780	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1781	/* ^ this is no longer true, as pending_w could be here */
1573		1782
1574	p->w->pending = 0;	1783	p->w->pending = 0;
1575	EV_CB_INVOKE (p->w, p->events);	1784	EV_CB_INVOKE (p->w, p->events);
1576	}	1785	EV_FREQUENT_CHECK;
1577	}	1786	}
1578	}	1787	}
1579		1788
1580	#if EV_IDLE_ENABLE	1789	#if EV_IDLE_ENABLE
1581	void inline_size	1790	/* make idle watchers pending. this handles the "call-idle */
		1791	/* only when higher priorities are idle" logic */
		1792	inline_size void
1582	idle_reify (EV_P)	1793	idle_reify (EV_P)
1583	{	1794	{
1584	if (expect_false (idleall))	1795	if (expect_false (idleall))
1585	{	1796	{
1586	int pri;	1797	int pri;
…		…
1598	}	1809	}
1599	}	1810	}
1600	}	1811	}
1601	#endif	1812	#endif
1602		1813
1603	void inline_size	1814	/* make timers pending */
		1815	inline_size void
1604	timers_reify (EV_P)	1816	timers_reify (EV_P)
1605	{	1817	{
		1818	EV_FREQUENT_CHECK;
		1819
1606	while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now)	1820	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1607	{	1821	{
1608	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1822	do
1609
1610	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1611
1612	/* first reschedule or stop timer */
1613	if (w->repeat)
1614	{	1823	{
		1824	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1825
		1826	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		1827
		1828	/* first reschedule or stop timer */
		1829	if (w->repeat)
		1830	{
1615	ev_at (w) += w->repeat;	1831	ev_at (w) += w->repeat;
1616	if (ev_at (w) < mn_now)	1832	if (ev_at (w) < mn_now)
1617	ev_at (w) = mn_now;	1833	ev_at (w) = mn_now;
1618		1834
1619	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1835	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1620		1836
1621	ANHE_at_set (timers [HEAP0]);	1837	ANHE_at_cache (timers [HEAP0]);
1622	downheap (timers, timercnt, HEAP0);	1838	downheap (timers, timercnt, HEAP0);
		1839	}
		1840	else
		1841	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1842
		1843	EV_FREQUENT_CHECK;
		1844	feed_reverse (EV_A_ (W)w);
1623	}	1845	}
1624	else	1846	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1625	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1626		1847
1627	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1848	feed_reverse_done (EV_A_ EV_TIMEOUT);
1628	}	1849	}
1629	}	1850	}
1630		1851
1631	#if EV_PERIODIC_ENABLE	1852	#if EV_PERIODIC_ENABLE
1632	void inline_size	1853	/* make periodics pending */
		1854	inline_size void
1633	periodics_reify (EV_P)	1855	periodics_reify (EV_P)
1634	{	1856	{
		1857	EV_FREQUENT_CHECK;
		1858
1635	while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now)	1859	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1636	{	1860	{
1637	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1861	int feed_count = 0;
1638		1862
1639	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1863	do
1640
1641	/* first reschedule or stop timer */
1642	if (w->reschedule_cb)
1643	{	1864	{
		1865	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1866
		1867	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		1868
		1869	/* first reschedule or stop timer */
		1870	if (w->reschedule_cb)
		1871	{
1644	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1872	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1645		1873
1646	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));	1874	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1647		1875
1648	ANHE_at_set (periodics [HEAP0]);	1876	ANHE_at_cache (periodics [HEAP0]);
1649	downheap (periodics, periodiccnt, HEAP0);	1877	downheap (periodics, periodiccnt, HEAP0);
		1878	}
		1879	else if (w->interval)
		1880	{
		1881	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1882	/* if next trigger time is not sufficiently in the future, put it there */
		1883	/* this might happen because of floating point inexactness */
		1884	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1885	{
		1886	ev_at (w) += w->interval;
		1887
		1888	/* if interval is unreasonably low we might still have a time in the past */
		1889	/* so correct this. this will make the periodic very inexact, but the user */
		1890	/* has effectively asked to get triggered more often than possible */
		1891	if (ev_at (w) < ev_rt_now)
		1892	ev_at (w) = ev_rt_now;
		1893	}
		1894
		1895	ANHE_at_cache (periodics [HEAP0]);
		1896	downheap (periodics, periodiccnt, HEAP0);
		1897	}
		1898	else
		1899	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1900
		1901	EV_FREQUENT_CHECK;
		1902	feed_reverse (EV_A_ (W)w);
1650	}	1903	}
1651	else if (w->interval)	1904	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1652	{
1653	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1654	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1655		1905
1656	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1657
1658	ANHE_at_set (periodics [HEAP0]);
1659	downheap (periodics, periodiccnt, HEAP0);
1660	}
1661	else
1662	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1663
1664	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1906	feed_reverse_done (EV_A_ EV_PERIODIC);
1665	}	1907	}
1666	}	1908	}
1667		1909
		1910	/* simply recalculate all periodics */
		1911	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1668	static void noinline	1912	static void noinline
1669	periodics_reschedule (EV_P)	1913	periodics_reschedule (EV_P)
1670	{	1914	{
1671	int i;	1915	int i;
1672		1916
…		…
1678	if (w->reschedule_cb)	1922	if (w->reschedule_cb)
1679	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1923	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1680	else if (w->interval)	1924	else if (w->interval)
1681	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1925	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1682		1926
1683	ANHE_at_set (periodics [i]);	1927	ANHE_at_cache (periodics [i]);
1684	}	1928	}
1685		1929
1686	/* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */	1930	reheap (periodics, periodiccnt);
1687	/* also, this is easy and corretc for both 2-heaps and 4-heaps */	1931	}
		1932	#endif
		1933
		1934	/* adjust all timers by a given offset */
		1935	static void noinline
		1936	timers_reschedule (EV_P_ ev_tstamp adjust)
		1937	{
		1938	int i;
		1939
1688	for (i = 0; i < periodiccnt; ++i)	1940	for (i = 0; i < timercnt; ++i)
1689	upheap (periodics, i + HEAP0);	1941	{
		1942	ANHE *he = timers + i + HEAP0;
		1943	ANHE_w (*he)->at += adjust;
		1944	ANHE_at_cache (*he);
		1945	}
1690	}	1946	}
1691	#endif
1692		1947
1693	void inline_speed	1948	/* fetch new monotonic and realtime times from the kernel */
		1949	/* also detetc if there was a timejump, and act accordingly */
		1950	inline_speed void
1694	time_update (EV_P_ ev_tstamp max_block)	1951	time_update (EV_P_ ev_tstamp max_block)
1695	{	1952	{
1696	int i;	1953	int i;
1697		1954
1698	#if EV_USE_MONOTONIC	1955	#if EV_USE_MONOTONIC
…		…
1731	ev_rt_now = ev_time ();	1988	ev_rt_now = ev_time ();
1732	mn_now = get_clock ();	1989	mn_now = get_clock ();
1733	now_floor = mn_now;	1990	now_floor = mn_now;
1734	}	1991	}
1735		1992
		1993	/* no timer adjustment, as the monotonic clock doesn't jump */
		1994	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1736	# if EV_PERIODIC_ENABLE	1995	# if EV_PERIODIC_ENABLE
1737	periodics_reschedule (EV_A);	1996	periodics_reschedule (EV_A);
1738	# endif	1997	# endif
1739	/* no timer adjustment, as the monotonic clock doesn't jump */
1740	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1741	}	1998	}
1742	else	1999	else
1743	#endif	2000	#endif
1744	{	2001	{
1745	ev_rt_now = ev_time ();	2002	ev_rt_now = ev_time ();
1746		2003
1747	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2004	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1748	{	2005	{
		2006	/* adjust timers. this is easy, as the offset is the same for all of them */
		2007	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1749	#if EV_PERIODIC_ENABLE	2008	#if EV_PERIODIC_ENABLE
1750	periodics_reschedule (EV_A);	2009	periodics_reschedule (EV_A);
1751	#endif	2010	#endif
1752	/* adjust timers. this is easy, as the offset is the same for all of them */
1753	for (i = 0; i < timercnt; ++i)
1754	{
1755	ANHE *he = timers + i + HEAP0;
1756	ANHE_w (*he)->at += ev_rt_now - mn_now;
1757	ANHE_at_set (*he);
1758	}
1759	}	2011	}
1760		2012
1761	mn_now = ev_rt_now;	2013	mn_now = ev_rt_now;
1762	}	2014	}
1763	}	2015	}
1764		2016
1765	void
1766	ev_ref (EV_P)
1767	{
1768	++activecnt;
1769	}
1770
1771	void
1772	ev_unref (EV_P)
1773	{
1774	--activecnt;
1775	}
1776
1777	static int loop_done;	2017	static int loop_done;
1778		2018
1779	void	2019	void
1780	ev_loop (EV_P_ int flags)	2020	ev_loop (EV_P_ int flags)
1781	{	2021	{
…		…
1783		2023
1784	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2024	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1785		2025
1786	do	2026	do
1787	{	2027	{
		2028	#if EV_VERIFY >= 2
		2029	ev_loop_verify (EV_A);
		2030	#endif
		2031
1788	#ifndef _WIN32	2032	#ifndef _WIN32
1789	if (expect_false (curpid)) /* penalise the forking check even more */	2033	if (expect_false (curpid)) /* penalise the forking check even more */
1790	if (expect_false (getpid () != curpid))	2034	if (expect_false (getpid () != curpid))
1791	{	2035	{
1792	curpid = getpid ();	2036	curpid = getpid ();
…		…
1809	{	2053	{
1810	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2054	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1811	call_pending (EV_A);	2055	call_pending (EV_A);
1812	}	2056	}
1813		2057
1814	if (expect_false (!activecnt))
1815	break;
1816
1817	/* we might have forked, so reify kernel state if necessary */	2058	/* we might have forked, so reify kernel state if necessary */
1818	if (expect_false (postfork))	2059	if (expect_false (postfork))
1819	loop_fork (EV_A);	2060	loop_fork (EV_A);
1820		2061
1821	/* update fd-related kernel structures */	2062	/* update fd-related kernel structures */
…		…
1900	ev_unloop (EV_P_ int how)	2141	ev_unloop (EV_P_ int how)
1901	{	2142	{
1902	loop_done = how;	2143	loop_done = how;
1903	}	2144	}
1904		2145
		2146	void
		2147	ev_ref (EV_P)
		2148	{
		2149	++activecnt;
		2150	}
		2151
		2152	void
		2153	ev_unref (EV_P)
		2154	{
		2155	--activecnt;
		2156	}
		2157
		2158	void
		2159	ev_now_update (EV_P)
		2160	{
		2161	time_update (EV_A_ 1e100);
		2162	}
		2163
		2164	void
		2165	ev_suspend (EV_P)
		2166	{
		2167	ev_now_update (EV_A);
		2168	}
		2169
		2170	void
		2171	ev_resume (EV_P)
		2172	{
		2173	ev_tstamp mn_prev = mn_now;
		2174
		2175	ev_now_update (EV_A);
		2176	timers_reschedule (EV_A_ mn_now - mn_prev);
		2177	#if EV_PERIODIC_ENABLE
		2178	/* TODO: really do this? */
		2179	periodics_reschedule (EV_A);
		2180	#endif
		2181	}
		2182
1905	/*****************************************************************************/	2183	/*****************************************************************************/
		2184	/* singly-linked list management, used when the expected list length is short */
1906		2185
1907	void inline_size	2186	inline_size void
1908	wlist_add (WL *head, WL elem)	2187	wlist_add (WL *head, WL elem)
1909	{	2188	{
1910	elem->next = *head;	2189	elem->next = *head;
1911	*head = elem;	2190	*head = elem;
1912	}	2191	}
1913		2192
1914	void inline_size	2193	inline_size void
1915	wlist_del (WL *head, WL elem)	2194	wlist_del (WL *head, WL elem)
1916	{	2195	{
1917	while (*head)	2196	while (*head)
1918	{	2197	{
1919	if (*head == elem)	2198	if (*head == elem)
…		…
1924		2203
1925	head = &(*head)->next;	2204	head = &(*head)->next;
1926	}	2205	}
1927	}	2206	}
1928		2207
1929	void inline_speed	2208	/* internal, faster, version of ev_clear_pending */
		2209	inline_speed void
1930	clear_pending (EV_P_ W w)	2210	clear_pending (EV_P_ W w)
1931	{	2211	{
1932	if (w->pending)	2212	if (w->pending)
1933	{	2213	{
1934	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2214	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1935	w->pending = 0;	2215	w->pending = 0;
1936	}	2216	}
1937	}	2217	}
1938		2218
1939	int	2219	int
…		…
1943	int pending = w_->pending;	2223	int pending = w_->pending;
1944		2224
1945	if (expect_true (pending))	2225	if (expect_true (pending))
1946	{	2226	{
1947	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2227	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2228	p->w = (W)&pending_w;
1948	w_->pending = 0;	2229	w_->pending = 0;
1949	p->w = 0;
1950	return p->events;	2230	return p->events;
1951	}	2231	}
1952	else	2232	else
1953	return 0;	2233	return 0;
1954	}	2234	}
1955		2235
1956	void inline_size	2236	inline_size void
1957	pri_adjust (EV_P_ W w)	2237	pri_adjust (EV_P_ W w)
1958	{	2238	{
1959	int pri = w->priority;	2239	int pri = w->priority;
1960	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2240	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1961	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2241	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1962	w->priority = pri;	2242	w->priority = pri;
1963	}	2243	}
1964		2244
1965	void inline_speed	2245	inline_speed void
1966	ev_start (EV_P_ W w, int active)	2246	ev_start (EV_P_ W w, int active)
1967	{	2247	{
1968	pri_adjust (EV_A_ w);	2248	pri_adjust (EV_A_ w);
1969	w->active = active;	2249	w->active = active;
1970	ev_ref (EV_A);	2250	ev_ref (EV_A);
1971	}	2251	}
1972		2252
1973	void inline_size	2253	inline_size void
1974	ev_stop (EV_P_ W w)	2254	ev_stop (EV_P_ W w)
1975	{	2255	{
1976	ev_unref (EV_A);	2256	ev_unref (EV_A);
1977	w->active = 0;	2257	w->active = 0;
1978	}	2258	}
…		…
1985	int fd = w->fd;	2265	int fd = w->fd;
1986		2266
1987	if (expect_false (ev_is_active (w)))	2267	if (expect_false (ev_is_active (w)))
1988	return;	2268	return;
1989		2269
1990	assert (("ev_io_start called with negative fd", fd >= 0));	2270	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2271	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
		2272
		2273	EV_FREQUENT_CHECK;
1991		2274
1992	ev_start (EV_A_ (W)w, 1);	2275	ev_start (EV_A_ (W)w, 1);
1993	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2276	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1994	wlist_add (&anfds[fd].head, (WL)w);	2277	wlist_add (&anfds[fd].head, (WL)w);
1995		2278
1996	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2279	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
1997	w->events &= ~EV_IOFDSET;	2280	w->events &= ~EV__IOFDSET;
		2281
		2282	EV_FREQUENT_CHECK;
1998	}	2283	}
1999		2284
2000	void noinline	2285	void noinline
2001	ev_io_stop (EV_P_ ev_io *w)	2286	ev_io_stop (EV_P_ ev_io *w)
2002	{	2287	{
2003	clear_pending (EV_A_ (W)w);	2288	clear_pending (EV_A_ (W)w);
2004	if (expect_false (!ev_is_active (w)))	2289	if (expect_false (!ev_is_active (w)))
2005	return;	2290	return;
2006		2291
2007	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2292	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2293
		2294	EV_FREQUENT_CHECK;
2008		2295
2009	wlist_del (&anfds[w->fd].head, (WL)w);	2296	wlist_del (&anfds[w->fd].head, (WL)w);
2010	ev_stop (EV_A_ (W)w);	2297	ev_stop (EV_A_ (W)w);
2011		2298
2012	fd_change (EV_A_ w->fd, 1);	2299	fd_change (EV_A_ w->fd, 1);
		2300
		2301	EV_FREQUENT_CHECK;
2013	}	2302	}
2014		2303
2015	void noinline	2304	void noinline
2016	ev_timer_start (EV_P_ ev_timer *w)	2305	ev_timer_start (EV_P_ ev_timer *w)
2017	{	2306	{
2018	if (expect_false (ev_is_active (w)))	2307	if (expect_false (ev_is_active (w)))
2019	return;	2308	return;
2020		2309
2021	ev_at (w) += mn_now;	2310	ev_at (w) += mn_now;
2022		2311
2023	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2312	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2024		2313
		2314	EV_FREQUENT_CHECK;
		2315
		2316	++timercnt;
2025	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2317	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2026	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	2318	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2027	ANHE_w (timers [ev_active (w)]) = (WT)w;	2319	ANHE_w (timers [ev_active (w)]) = (WT)w;
2028	ANHE_at_set (timers [ev_active (w)]);	2320	ANHE_at_cache (timers [ev_active (w)]);
2029	upheap (timers, ev_active (w));	2321	upheap (timers, ev_active (w));
2030		2322
		2323	EV_FREQUENT_CHECK;
		2324
2031	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2325	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2032	}	2326	}
2033		2327
2034	void noinline	2328	void noinline
2035	ev_timer_stop (EV_P_ ev_timer *w)	2329	ev_timer_stop (EV_P_ ev_timer *w)
2036	{	2330	{
2037	clear_pending (EV_A_ (W)w);	2331	clear_pending (EV_A_ (W)w);
2038	if (expect_false (!ev_is_active (w)))	2332	if (expect_false (!ev_is_active (w)))
2039	return;	2333	return;
2040		2334
		2335	EV_FREQUENT_CHECK;
		2336
2041	{	2337	{
2042	int active = ev_active (w);	2338	int active = ev_active (w);
2043		2339
2044	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2340	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2045		2341
		2342	--timercnt;
		2343
2046	if (expect_true (active < timercnt + HEAP0 - 1))	2344	if (expect_true (active < timercnt + HEAP0))
2047	{	2345	{
2048	timers [active] = timers [timercnt + HEAP0 - 1];	2346	timers [active] = timers [timercnt + HEAP0];
2049	adjustheap (timers, timercnt, active);	2347	adjustheap (timers, timercnt, active);
2050	}	2348	}
2051
2052	--timercnt;
2053	}	2349	}
		2350
		2351	EV_FREQUENT_CHECK;
2054		2352
2055	ev_at (w) -= mn_now;	2353	ev_at (w) -= mn_now;
2056		2354
2057	ev_stop (EV_A_ (W)w);	2355	ev_stop (EV_A_ (W)w);
2058	}	2356	}
2059		2357
2060	void noinline	2358	void noinline
2061	ev_timer_again (EV_P_ ev_timer *w)	2359	ev_timer_again (EV_P_ ev_timer *w)
2062	{	2360	{
		2361	EV_FREQUENT_CHECK;
		2362
2063	if (ev_is_active (w))	2363	if (ev_is_active (w))
2064	{	2364	{
2065	if (w->repeat)	2365	if (w->repeat)
2066	{	2366	{
2067	ev_at (w) = mn_now + w->repeat;	2367	ev_at (w) = mn_now + w->repeat;
2068	ANHE_at_set (timers [ev_active (w)]);	2368	ANHE_at_cache (timers [ev_active (w)]);
2069	adjustheap (timers, timercnt, ev_active (w));	2369	adjustheap (timers, timercnt, ev_active (w));
2070	}	2370	}
2071	else	2371	else
2072	ev_timer_stop (EV_A_ w);	2372	ev_timer_stop (EV_A_ w);
2073	}	2373	}
2074	else if (w->repeat)	2374	else if (w->repeat)
2075	{	2375	{
2076	ev_at (w) = w->repeat;	2376	ev_at (w) = w->repeat;
2077	ev_timer_start (EV_A_ w);	2377	ev_timer_start (EV_A_ w);
2078	}	2378	}
		2379
		2380	EV_FREQUENT_CHECK;
2079	}	2381	}
2080		2382
2081	#if EV_PERIODIC_ENABLE	2383	#if EV_PERIODIC_ENABLE
2082	void noinline	2384	void noinline
2083	ev_periodic_start (EV_P_ ev_periodic *w)	2385	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2087		2389
2088	if (w->reschedule_cb)	2390	if (w->reschedule_cb)
2089	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2391	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2090	else if (w->interval)	2392	else if (w->interval)
2091	{	2393	{
2092	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2394	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2093	/* this formula differs from the one in periodic_reify because we do not always round up */	2395	/* this formula differs from the one in periodic_reify because we do not always round up */
2094	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2396	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2095	}	2397	}
2096	else	2398	else
2097	ev_at (w) = w->offset;	2399	ev_at (w) = w->offset;
2098		2400
		2401	EV_FREQUENT_CHECK;
		2402
		2403	++periodiccnt;
2099	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2404	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2100	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	2405	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2101	ANHE_w (periodics [ev_active (w)]) = (WT)w;	2406	ANHE_w (periodics [ev_active (w)]) = (WT)w;
2102	ANHE_at_set (periodics [ev_active (w)]);	2407	ANHE_at_cache (periodics [ev_active (w)]);
2103	upheap (periodics, ev_active (w));	2408	upheap (periodics, ev_active (w));
2104		2409
		2410	EV_FREQUENT_CHECK;
		2411
2105	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2412	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2106	}	2413	}
2107		2414
2108	void noinline	2415	void noinline
2109	ev_periodic_stop (EV_P_ ev_periodic *w)	2416	ev_periodic_stop (EV_P_ ev_periodic *w)
2110	{	2417	{
2111	clear_pending (EV_A_ (W)w);	2418	clear_pending (EV_A_ (W)w);
2112	if (expect_false (!ev_is_active (w)))	2419	if (expect_false (!ev_is_active (w)))
2113	return;	2420	return;
2114		2421
		2422	EV_FREQUENT_CHECK;
		2423
2115	{	2424	{
2116	int active = ev_active (w);	2425	int active = ev_active (w);
2117		2426
2118	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2427	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2119		2428
		2429	--periodiccnt;
		2430
2120	if (expect_true (active < periodiccnt + HEAP0 - 1))	2431	if (expect_true (active < periodiccnt + HEAP0))
2121	{	2432	{
2122	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2433	periodics [active] = periodics [periodiccnt + HEAP0];
2123	adjustheap (periodics, periodiccnt, active);	2434	adjustheap (periodics, periodiccnt, active);
2124	}	2435	}
2125
2126	--periodiccnt;
2127	}	2436	}
		2437
		2438	EV_FREQUENT_CHECK;
2128		2439
2129	ev_stop (EV_A_ (W)w);	2440	ev_stop (EV_A_ (W)w);
2130	}	2441	}
2131		2442
2132	void noinline	2443	void noinline
…		…
2144		2455
2145	void noinline	2456	void noinline
2146	ev_signal_start (EV_P_ ev_signal *w)	2457	ev_signal_start (EV_P_ ev_signal *w)
2147	{	2458	{
2148	#if EV_MULTIPLICITY	2459	#if EV_MULTIPLICITY
2149	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2460	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2150	#endif	2461	#endif
2151	if (expect_false (ev_is_active (w)))	2462	if (expect_false (ev_is_active (w)))
2152	return;	2463	return;
2153		2464
2154	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2465	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2155		2466
2156	evpipe_init (EV_A);	2467	evpipe_init (EV_A);
		2468
		2469	EV_FREQUENT_CHECK;
2157		2470
2158	{	2471	{
2159	#ifndef _WIN32	2472	#ifndef _WIN32
2160	sigset_t full, prev;	2473	sigset_t full, prev;
2161	sigfillset (&full);	2474	sigfillset (&full);
2162	sigprocmask (SIG_SETMASK, &full, &prev);	2475	sigprocmask (SIG_SETMASK, &full, &prev);
2163	#endif	2476	#endif
2164		2477
2165	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2478	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2166		2479
2167	#ifndef _WIN32	2480	#ifndef _WIN32
2168	sigprocmask (SIG_SETMASK, &prev, 0);	2481	sigprocmask (SIG_SETMASK, &prev, 0);
2169	#endif	2482	#endif
2170	}	2483	}
…		…
2182	sigfillset (&sa.sa_mask);	2495	sigfillset (&sa.sa_mask);
2183	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2496	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2184	sigaction (w->signum, &sa, 0);	2497	sigaction (w->signum, &sa, 0);
2185	#endif	2498	#endif
2186	}	2499	}
		2500
		2501	EV_FREQUENT_CHECK;
2187	}	2502	}
2188		2503
2189	void noinline	2504	void noinline
2190	ev_signal_stop (EV_P_ ev_signal *w)	2505	ev_signal_stop (EV_P_ ev_signal *w)
2191	{	2506	{
2192	clear_pending (EV_A_ (W)w);	2507	clear_pending (EV_A_ (W)w);
2193	if (expect_false (!ev_is_active (w)))	2508	if (expect_false (!ev_is_active (w)))
2194	return;	2509	return;
2195		2510
		2511	EV_FREQUENT_CHECK;
		2512
2196	wlist_del (&signals [w->signum - 1].head, (WL)w);	2513	wlist_del (&signals [w->signum - 1].head, (WL)w);
2197	ev_stop (EV_A_ (W)w);	2514	ev_stop (EV_A_ (W)w);
2198		2515
2199	if (!signals [w->signum - 1].head)	2516	if (!signals [w->signum - 1].head)
2200	signal (w->signum, SIG_DFL);	2517	signal (w->signum, SIG_DFL);
		2518
		2519	EV_FREQUENT_CHECK;
2201	}	2520	}
2202		2521
2203	void	2522	void
2204	ev_child_start (EV_P_ ev_child *w)	2523	ev_child_start (EV_P_ ev_child *w)
2205	{	2524	{
2206	#if EV_MULTIPLICITY	2525	#if EV_MULTIPLICITY
2207	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2526	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2208	#endif	2527	#endif
2209	if (expect_false (ev_is_active (w)))	2528	if (expect_false (ev_is_active (w)))
2210	return;	2529	return;
2211		2530
		2531	EV_FREQUENT_CHECK;
		2532
2212	ev_start (EV_A_ (W)w, 1);	2533	ev_start (EV_A_ (W)w, 1);
2213	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2534	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2535
		2536	EV_FREQUENT_CHECK;
2214	}	2537	}
2215		2538
2216	void	2539	void
2217	ev_child_stop (EV_P_ ev_child *w)	2540	ev_child_stop (EV_P_ ev_child *w)
2218	{	2541	{
2219	clear_pending (EV_A_ (W)w);	2542	clear_pending (EV_A_ (W)w);
2220	if (expect_false (!ev_is_active (w)))	2543	if (expect_false (!ev_is_active (w)))
2221	return;	2544	return;
2222		2545
		2546	EV_FREQUENT_CHECK;
		2547
2223	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2548	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2224	ev_stop (EV_A_ (W)w);	2549	ev_stop (EV_A_ (W)w);
		2550
		2551	EV_FREQUENT_CHECK;
2225	}	2552	}
2226		2553
2227	#if EV_STAT_ENABLE	2554	#if EV_STAT_ENABLE
2228		2555
2229	# ifdef _WIN32	2556	# ifdef _WIN32
2230	# undef lstat	2557	# undef lstat
2231	# define lstat(a,b) _stati64 (a,b)	2558	# define lstat(a,b) _stati64 (a,b)
2232	# endif	2559	# endif
2233		2560
2234	#define DEF_STAT_INTERVAL 5.0074891	2561	#define DEF_STAT_INTERVAL 5.0074891
		2562	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2235	#define MIN_STAT_INTERVAL 0.1074891	2563	#define MIN_STAT_INTERVAL 0.1074891
2236		2564
2237	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2565	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2238		2566
2239	#if EV_USE_INOTIFY	2567	#if EV_USE_INOTIFY
2240	# define EV_INOTIFY_BUFSIZE 8192	2568	# define EV_INOTIFY_BUFSIZE 8192
…		…
2244	{	2572	{
2245	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);	2573	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);
2246		2574
2247	if (w->wd < 0)	2575	if (w->wd < 0)
2248	{	2576	{
		2577	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2249	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2578	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2250		2579
2251	/* monitor some parent directory for speedup hints */	2580	/* monitor some parent directory for speedup hints */
2252	/* note that exceeding the hardcoded limit is not a correctness issue, */	2581	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2253	/* but an efficiency issue only */	2582	/* but an efficiency issue only */
2254	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2583	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2255	{	2584	{
2256	char path [4096];	2585	char path [4096];
2257	strcpy (path, w->path);	2586	strcpy (path, w->path);
…		…
2261	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2590	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2262	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2591	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2263		2592
2264	char *pend = strrchr (path, '/');	2593	char *pend = strrchr (path, '/');
2265		2594
2266	if (!pend)	2595	if (!pend || pend == path)
2267	break; /* whoops, no '/', complain to your admin */	2596	break;
2268		2597
2269	*pend = 0;	2598	*pend = 0;
2270	w->wd = inotify_add_watch (fs_fd, path, mask);	2599	w->wd = inotify_add_watch (fs_fd, path, mask);
2271	}	2600	}
2272	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2601	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2273	}	2602	}
2274	}	2603	}
2275	else
2276	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2277		2604
2278	if (w->wd >= 0)	2605	if (w->wd >= 0)
		2606	{
2279	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2607	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2608
		2609	/* now local changes will be tracked by inotify, but remote changes won't */
		2610	/* unless the filesystem it known to be local, we therefore still poll */
		2611	/* also do poll on <2.6.25, but with normal frequency */
		2612	struct statfs sfs;
		2613
		2614	if (fs_2625 && !statfs (w->path, &sfs))
		2615	if (sfs.f_type == 0x1373 /* devfs */
		2616	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2617	|| sfs.f_type == 0x3153464a /* jfs */
		2618	|| sfs.f_type == 0x52654973 /* reiser3 */
		2619	|| sfs.f_type == 0x01021994 /* tempfs */
		2620	|| sfs.f_type == 0x58465342 /* xfs */)
		2621	return;
		2622
		2623	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2624	ev_timer_again (EV_A_ &w->timer);
		2625	}
2280	}	2626	}
2281		2627
2282	static void noinline	2628	static void noinline
2283	infy_del (EV_P_ ev_stat *w)	2629	infy_del (EV_P_ ev_stat *w)
2284	{	2630	{
…		…
2298		2644
2299	static void noinline	2645	static void noinline
2300	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2646	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2301	{	2647	{
2302	if (slot < 0)	2648	if (slot < 0)
2303	/* overflow, need to check for all hahs slots */	2649	/* overflow, need to check for all hash slots */
2304	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2650	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2305	infy_wd (EV_A_ slot, wd, ev);	2651	infy_wd (EV_A_ slot, wd, ev);
2306	else	2652	else
2307	{	2653	{
2308	WL w_;	2654	WL w_;
…		…
2314		2660
2315	if (w->wd == wd || wd == -1)	2661	if (w->wd == wd || wd == -1)
2316	{	2662	{
2317	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2663	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2318	{	2664	{
		2665	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2319	w->wd = -1;	2666	w->wd = -1;
2320	infy_add (EV_A_ w); /* re-add, no matter what */	2667	infy_add (EV_A_ w); /* re-add, no matter what */
2321	}	2668	}
2322		2669
2323	stat_timer_cb (EV_A_ &w->timer, 0);	2670	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2336		2683
2337	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2684	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2338	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2685	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2339	}	2686	}
2340		2687
2341	void inline_size	2688	inline_size void
		2689	check_2625 (EV_P)
		2690	{
		2691	/* kernels < 2.6.25 are borked
		2692	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2693	*/
		2694	struct utsname buf;
		2695	int major, minor, micro;
		2696
		2697	if (uname (&buf))
		2698	return;
		2699
		2700	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2701	return;
		2702
		2703	if (major < 2
		2704	|| (major == 2 && minor < 6)
		2705	|| (major == 2 && minor == 6 && micro < 25))
		2706	return;
		2707
		2708	fs_2625 = 1;
		2709	}
		2710
		2711	inline_size void
2342	infy_init (EV_P)	2712	infy_init (EV_P)
2343	{	2713	{
2344	if (fs_fd != -2)	2714	if (fs_fd != -2)
2345	return;	2715	return;
		2716
		2717	fs_fd = -1;
		2718
		2719	check_2625 (EV_A);
2346		2720
2347	fs_fd = inotify_init ();	2721	fs_fd = inotify_init ();
2348		2722
2349	if (fs_fd >= 0)	2723	if (fs_fd >= 0)
2350	{	2724	{
…		…
2352	ev_set_priority (&fs_w, EV_MAXPRI);	2726	ev_set_priority (&fs_w, EV_MAXPRI);
2353	ev_io_start (EV_A_ &fs_w);	2727	ev_io_start (EV_A_ &fs_w);
2354	}	2728	}
2355	}	2729	}
2356		2730
2357	void inline_size	2731	inline_size void
2358	infy_fork (EV_P)	2732	infy_fork (EV_P)
2359	{	2733	{
2360	int slot;	2734	int slot;
2361		2735
2362	if (fs_fd < 0)	2736	if (fs_fd < 0)
…		…
2378	w->wd = -1;	2752	w->wd = -1;
2379		2753
2380	if (fs_fd >= 0)	2754	if (fs_fd >= 0)
2381	infy_add (EV_A_ w); /* re-add, no matter what */	2755	infy_add (EV_A_ w); /* re-add, no matter what */
2382	else	2756	else
2383	ev_timer_start (EV_A_ &w->timer);	2757	ev_timer_again (EV_A_ &w->timer);
2384	}	2758	}
2385
2386	}	2759	}
2387	}	2760	}
2388		2761
		2762	#endif
		2763
		2764	#ifdef _WIN32
		2765	# define EV_LSTAT(p,b) _stati64 (p, b)
		2766	#else
		2767	# define EV_LSTAT(p,b) lstat (p, b)
2389	#endif	2768	#endif
2390		2769
2391	void	2770	void
2392	ev_stat_stat (EV_P_ ev_stat *w)	2771	ev_stat_stat (EV_P_ ev_stat *w)
2393	{	2772	{
…		…
2420	|| w->prev.st_atime != w->attr.st_atime	2799	|| w->prev.st_atime != w->attr.st_atime
2421	|| w->prev.st_mtime != w->attr.st_mtime	2800	|| w->prev.st_mtime != w->attr.st_mtime
2422	|| w->prev.st_ctime != w->attr.st_ctime	2801	|| w->prev.st_ctime != w->attr.st_ctime
2423	) {	2802	) {
2424	#if EV_USE_INOTIFY	2803	#if EV_USE_INOTIFY
		2804	if (fs_fd >= 0)
		2805	{
2425	infy_del (EV_A_ w);	2806	infy_del (EV_A_ w);
2426	infy_add (EV_A_ w);	2807	infy_add (EV_A_ w);
2427	ev_stat_stat (EV_A_ w); /* avoid race... */	2808	ev_stat_stat (EV_A_ w); /* avoid race... */
		2809	}
2428	#endif	2810	#endif
2429		2811
2430	ev_feed_event (EV_A_ w, EV_STAT);	2812	ev_feed_event (EV_A_ w, EV_STAT);
2431	}	2813	}
2432	}	2814	}
…		…
2435	ev_stat_start (EV_P_ ev_stat *w)	2817	ev_stat_start (EV_P_ ev_stat *w)
2436	{	2818	{
2437	if (expect_false (ev_is_active (w)))	2819	if (expect_false (ev_is_active (w)))
2438	return;	2820	return;
2439		2821
2440	/* since we use memcmp, we need to clear any padding data etc. */
2441	memset (&w->prev, 0, sizeof (ev_statdata));
2442	memset (&w->attr, 0, sizeof (ev_statdata));
2443
2444	ev_stat_stat (EV_A_ w);	2822	ev_stat_stat (EV_A_ w);
2445		2823
		2824	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2446	if (w->interval < MIN_STAT_INTERVAL)	2825	w->interval = MIN_STAT_INTERVAL;
2447	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2448		2826
2449	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2827	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2450	ev_set_priority (&w->timer, ev_priority (w));	2828	ev_set_priority (&w->timer, ev_priority (w));
2451		2829
2452	#if EV_USE_INOTIFY	2830	#if EV_USE_INOTIFY
2453	infy_init (EV_A);	2831	infy_init (EV_A);
2454		2832
2455	if (fs_fd >= 0)	2833	if (fs_fd >= 0)
2456	infy_add (EV_A_ w);	2834	infy_add (EV_A_ w);
2457	else	2835	else
2458	#endif	2836	#endif
2459	ev_timer_start (EV_A_ &w->timer);	2837	ev_timer_again (EV_A_ &w->timer);
2460		2838
2461	ev_start (EV_A_ (W)w, 1);	2839	ev_start (EV_A_ (W)w, 1);
		2840
		2841	EV_FREQUENT_CHECK;
2462	}	2842	}
2463		2843
2464	void	2844	void
2465	ev_stat_stop (EV_P_ ev_stat *w)	2845	ev_stat_stop (EV_P_ ev_stat *w)
2466	{	2846	{
2467	clear_pending (EV_A_ (W)w);	2847	clear_pending (EV_A_ (W)w);
2468	if (expect_false (!ev_is_active (w)))	2848	if (expect_false (!ev_is_active (w)))
2469	return;	2849	return;
2470		2850
		2851	EV_FREQUENT_CHECK;
		2852
2471	#if EV_USE_INOTIFY	2853	#if EV_USE_INOTIFY
2472	infy_del (EV_A_ w);	2854	infy_del (EV_A_ w);
2473	#endif	2855	#endif
2474	ev_timer_stop (EV_A_ &w->timer);	2856	ev_timer_stop (EV_A_ &w->timer);
2475		2857
2476	ev_stop (EV_A_ (W)w);	2858	ev_stop (EV_A_ (W)w);
		2859
		2860	EV_FREQUENT_CHECK;
2477	}	2861	}
2478	#endif	2862	#endif
2479		2863
2480	#if EV_IDLE_ENABLE	2864	#if EV_IDLE_ENABLE
2481	void	2865	void
…		…
2483	{	2867	{
2484	if (expect_false (ev_is_active (w)))	2868	if (expect_false (ev_is_active (w)))
2485	return;	2869	return;
2486		2870
2487	pri_adjust (EV_A_ (W)w);	2871	pri_adjust (EV_A_ (W)w);
		2872
		2873	EV_FREQUENT_CHECK;
2488		2874
2489	{	2875	{
2490	int active = ++idlecnt [ABSPRI (w)];	2876	int active = ++idlecnt [ABSPRI (w)];
2491		2877
2492	++idleall;	2878	++idleall;
2493	ev_start (EV_A_ (W)w, active);	2879	ev_start (EV_A_ (W)w, active);
2494		2880
2495	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2881	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2496	idles [ABSPRI (w)][active - 1] = w;	2882	idles [ABSPRI (w)][active - 1] = w;
2497	}	2883	}
		2884
		2885	EV_FREQUENT_CHECK;
2498	}	2886	}
2499		2887
2500	void	2888	void
2501	ev_idle_stop (EV_P_ ev_idle *w)	2889	ev_idle_stop (EV_P_ ev_idle *w)
2502	{	2890	{
2503	clear_pending (EV_A_ (W)w);	2891	clear_pending (EV_A_ (W)w);
2504	if (expect_false (!ev_is_active (w)))	2892	if (expect_false (!ev_is_active (w)))
2505	return;	2893	return;
2506		2894
		2895	EV_FREQUENT_CHECK;
		2896
2507	{	2897	{
2508	int active = ev_active (w);	2898	int active = ev_active (w);
2509		2899
2510	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2900	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2511	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2901	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2512		2902
2513	ev_stop (EV_A_ (W)w);	2903	ev_stop (EV_A_ (W)w);
2514	--idleall;	2904	--idleall;
2515	}	2905	}
		2906
		2907	EV_FREQUENT_CHECK;
2516	}	2908	}
2517	#endif	2909	#endif
2518		2910
2519	void	2911	void
2520	ev_prepare_start (EV_P_ ev_prepare *w)	2912	ev_prepare_start (EV_P_ ev_prepare *w)
2521	{	2913	{
2522	if (expect_false (ev_is_active (w)))	2914	if (expect_false (ev_is_active (w)))
2523	return;	2915	return;
		2916
		2917	EV_FREQUENT_CHECK;
2524		2918
2525	ev_start (EV_A_ (W)w, ++preparecnt);	2919	ev_start (EV_A_ (W)w, ++preparecnt);
2526	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2920	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2527	prepares [preparecnt - 1] = w;	2921	prepares [preparecnt - 1] = w;
		2922
		2923	EV_FREQUENT_CHECK;
2528	}	2924	}
2529		2925
2530	void	2926	void
2531	ev_prepare_stop (EV_P_ ev_prepare *w)	2927	ev_prepare_stop (EV_P_ ev_prepare *w)
2532	{	2928	{
2533	clear_pending (EV_A_ (W)w);	2929	clear_pending (EV_A_ (W)w);
2534	if (expect_false (!ev_is_active (w)))	2930	if (expect_false (!ev_is_active (w)))
2535	return;	2931	return;
2536		2932
		2933	EV_FREQUENT_CHECK;
		2934
2537	{	2935	{
2538	int active = ev_active (w);	2936	int active = ev_active (w);
2539		2937
2540	prepares [active - 1] = prepares [--preparecnt];	2938	prepares [active - 1] = prepares [--preparecnt];
2541	ev_active (prepares [active - 1]) = active;	2939	ev_active (prepares [active - 1]) = active;
2542	}	2940	}
2543		2941
2544	ev_stop (EV_A_ (W)w);	2942	ev_stop (EV_A_ (W)w);
		2943
		2944	EV_FREQUENT_CHECK;
2545	}	2945	}
2546		2946
2547	void	2947	void
2548	ev_check_start (EV_P_ ev_check *w)	2948	ev_check_start (EV_P_ ev_check *w)
2549	{	2949	{
2550	if (expect_false (ev_is_active (w)))	2950	if (expect_false (ev_is_active (w)))
2551	return;	2951	return;
		2952
		2953	EV_FREQUENT_CHECK;
2552		2954
2553	ev_start (EV_A_ (W)w, ++checkcnt);	2955	ev_start (EV_A_ (W)w, ++checkcnt);
2554	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2956	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2555	checks [checkcnt - 1] = w;	2957	checks [checkcnt - 1] = w;
		2958
		2959	EV_FREQUENT_CHECK;
2556	}	2960	}
2557		2961
2558	void	2962	void
2559	ev_check_stop (EV_P_ ev_check *w)	2963	ev_check_stop (EV_P_ ev_check *w)
2560	{	2964	{
2561	clear_pending (EV_A_ (W)w);	2965	clear_pending (EV_A_ (W)w);
2562	if (expect_false (!ev_is_active (w)))	2966	if (expect_false (!ev_is_active (w)))
2563	return;	2967	return;
2564		2968
		2969	EV_FREQUENT_CHECK;
		2970
2565	{	2971	{
2566	int active = ev_active (w);	2972	int active = ev_active (w);
2567		2973
2568	checks [active - 1] = checks [--checkcnt];	2974	checks [active - 1] = checks [--checkcnt];
2569	ev_active (checks [active - 1]) = active;	2975	ev_active (checks [active - 1]) = active;
2570	}	2976	}
2571		2977
2572	ev_stop (EV_A_ (W)w);	2978	ev_stop (EV_A_ (W)w);
		2979
		2980	EV_FREQUENT_CHECK;
2573	}	2981	}
2574		2982
2575	#if EV_EMBED_ENABLE	2983	#if EV_EMBED_ENABLE
2576	void noinline	2984	void noinline
2577	ev_embed_sweep (EV_P_ ev_embed *w)	2985	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2604	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3012	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2605	}	3013	}
2606	}	3014	}
2607	}	3015	}
2608		3016
		3017	static void
		3018	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3019	{
		3020	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3021
		3022	ev_embed_stop (EV_A_ w);
		3023
		3024	{
		3025	struct ev_loop *loop = w->other;
		3026
		3027	ev_loop_fork (EV_A);
		3028	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3029	}
		3030
		3031	ev_embed_start (EV_A_ w);
		3032	}
		3033
2609	#if 0	3034	#if 0
2610	static void	3035	static void
2611	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3036	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2612	{	3037	{
2613	ev_idle_stop (EV_A_ idle);	3038	ev_idle_stop (EV_A_ idle);
…		…
2620	if (expect_false (ev_is_active (w)))	3045	if (expect_false (ev_is_active (w)))
2621	return;	3046	return;
2622		3047
2623	{	3048	{
2624	struct ev_loop *loop = w->other;	3049	struct ev_loop *loop = w->other;
2625	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3050	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2626	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3051	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2627	}	3052	}
		3053
		3054	EV_FREQUENT_CHECK;
2628		3055
2629	ev_set_priority (&w->io, ev_priority (w));	3056	ev_set_priority (&w->io, ev_priority (w));
2630	ev_io_start (EV_A_ &w->io);	3057	ev_io_start (EV_A_ &w->io);
2631		3058
2632	ev_prepare_init (&w->prepare, embed_prepare_cb);	3059	ev_prepare_init (&w->prepare, embed_prepare_cb);
2633	ev_set_priority (&w->prepare, EV_MINPRI);	3060	ev_set_priority (&w->prepare, EV_MINPRI);
2634	ev_prepare_start (EV_A_ &w->prepare);	3061	ev_prepare_start (EV_A_ &w->prepare);
2635		3062
		3063	ev_fork_init (&w->fork, embed_fork_cb);
		3064	ev_fork_start (EV_A_ &w->fork);
		3065
2636	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3066	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2637		3067
2638	ev_start (EV_A_ (W)w, 1);	3068	ev_start (EV_A_ (W)w, 1);
		3069
		3070	EV_FREQUENT_CHECK;
2639	}	3071	}
2640		3072
2641	void	3073	void
2642	ev_embed_stop (EV_P_ ev_embed *w)	3074	ev_embed_stop (EV_P_ ev_embed *w)
2643	{	3075	{
2644	clear_pending (EV_A_ (W)w);	3076	clear_pending (EV_A_ (W)w);
2645	if (expect_false (!ev_is_active (w)))	3077	if (expect_false (!ev_is_active (w)))
2646	return;	3078	return;
2647		3079
		3080	EV_FREQUENT_CHECK;
		3081
2648	ev_io_stop (EV_A_ &w->io);	3082	ev_io_stop (EV_A_ &w->io);
2649	ev_prepare_stop (EV_A_ &w->prepare);	3083	ev_prepare_stop (EV_A_ &w->prepare);
		3084	ev_fork_stop (EV_A_ &w->fork);
2650		3085
2651	ev_stop (EV_A_ (W)w);	3086	EV_FREQUENT_CHECK;
2652	}	3087	}
2653	#endif	3088	#endif
2654		3089
2655	#if EV_FORK_ENABLE	3090	#if EV_FORK_ENABLE
2656	void	3091	void
2657	ev_fork_start (EV_P_ ev_fork *w)	3092	ev_fork_start (EV_P_ ev_fork *w)
2658	{	3093	{
2659	if (expect_false (ev_is_active (w)))	3094	if (expect_false (ev_is_active (w)))
2660	return;	3095	return;
		3096
		3097	EV_FREQUENT_CHECK;
2661		3098
2662	ev_start (EV_A_ (W)w, ++forkcnt);	3099	ev_start (EV_A_ (W)w, ++forkcnt);
2663	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	3100	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2664	forks [forkcnt - 1] = w;	3101	forks [forkcnt - 1] = w;
		3102
		3103	EV_FREQUENT_CHECK;
2665	}	3104	}
2666		3105
2667	void	3106	void
2668	ev_fork_stop (EV_P_ ev_fork *w)	3107	ev_fork_stop (EV_P_ ev_fork *w)
2669	{	3108	{
2670	clear_pending (EV_A_ (W)w);	3109	clear_pending (EV_A_ (W)w);
2671	if (expect_false (!ev_is_active (w)))	3110	if (expect_false (!ev_is_active (w)))
2672	return;	3111	return;
2673		3112
		3113	EV_FREQUENT_CHECK;
		3114
2674	{	3115	{
2675	int active = ev_active (w);	3116	int active = ev_active (w);
2676		3117
2677	forks [active - 1] = forks [--forkcnt];	3118	forks [active - 1] = forks [--forkcnt];
2678	ev_active (forks [active - 1]) = active;	3119	ev_active (forks [active - 1]) = active;
2679	}	3120	}
2680		3121
2681	ev_stop (EV_A_ (W)w);	3122	ev_stop (EV_A_ (W)w);
		3123
		3124	EV_FREQUENT_CHECK;
2682	}	3125	}
2683	#endif	3126	#endif
2684		3127
2685	#if EV_ASYNC_ENABLE	3128	#if EV_ASYNC_ENABLE
2686	void	3129	void
…		…
2688	{	3131	{
2689	if (expect_false (ev_is_active (w)))	3132	if (expect_false (ev_is_active (w)))
2690	return;	3133	return;
2691		3134
2692	evpipe_init (EV_A);	3135	evpipe_init (EV_A);
		3136
		3137	EV_FREQUENT_CHECK;
2693		3138
2694	ev_start (EV_A_ (W)w, ++asynccnt);	3139	ev_start (EV_A_ (W)w, ++asynccnt);
2695	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3140	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2696	asyncs [asynccnt - 1] = w;	3141	asyncs [asynccnt - 1] = w;
		3142
		3143	EV_FREQUENT_CHECK;
2697	}	3144	}
2698		3145
2699	void	3146	void
2700	ev_async_stop (EV_P_ ev_async *w)	3147	ev_async_stop (EV_P_ ev_async *w)
2701	{	3148	{
2702	clear_pending (EV_A_ (W)w);	3149	clear_pending (EV_A_ (W)w);
2703	if (expect_false (!ev_is_active (w)))	3150	if (expect_false (!ev_is_active (w)))
2704	return;	3151	return;
2705		3152
		3153	EV_FREQUENT_CHECK;
		3154
2706	{	3155	{
2707	int active = ev_active (w);	3156	int active = ev_active (w);
2708		3157
2709	asyncs [active - 1] = asyncs [--asynccnt];	3158	asyncs [active - 1] = asyncs [--asynccnt];
2710	ev_active (asyncs [active - 1]) = active;	3159	ev_active (asyncs [active - 1]) = active;
2711	}	3160	}
2712		3161
2713	ev_stop (EV_A_ (W)w);	3162	ev_stop (EV_A_ (W)w);
		3163
		3164	EV_FREQUENT_CHECK;
2714	}	3165	}
2715		3166
2716	void	3167	void
2717	ev_async_send (EV_P_ ev_async *w)	3168	ev_async_send (EV_P_ ev_async *w)
2718	{	3169	{
…		…
2735	once_cb (EV_P_ struct ev_once *once, int revents)	3186	once_cb (EV_P_ struct ev_once *once, int revents)
2736	{	3187	{
2737	void (*cb)(int revents, void *arg) = once->cb;	3188	void (*cb)(int revents, void *arg) = once->cb;
2738	void *arg = once->arg;	3189	void *arg = once->arg;
2739		3190
2740	ev_io_stop (EV_A_ &once->io);	3191	ev_io_stop (EV_A_ &once->io);
2741	ev_timer_stop (EV_A_ &once->to);	3192	ev_timer_stop (EV_A_ &once->to);
2742	ev_free (once);	3193	ev_free (once);
2743		3194
2744	cb (revents, arg);	3195	cb (revents, arg);
2745	}	3196	}
2746		3197
2747	static void	3198	static void
2748	once_cb_io (EV_P_ ev_io *w, int revents)	3199	once_cb_io (EV_P_ ev_io *w, int revents)
2749	{	3200	{
2750	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3201	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3202
		3203	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2751	}	3204	}
2752		3205
2753	static void	3206	static void
2754	once_cb_to (EV_P_ ev_timer *w, int revents)	3207	once_cb_to (EV_P_ ev_timer *w, int revents)
2755	{	3208	{
2756	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3209	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3210
		3211	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2757	}	3212	}
2758		3213
2759	void	3214	void
2760	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3215	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2761	{	3216	{
…		…
2783	ev_timer_set (&once->to, timeout, 0.);	3238	ev_timer_set (&once->to, timeout, 0.);
2784	ev_timer_start (EV_A_ &once->to);	3239	ev_timer_start (EV_A_ &once->to);
2785	}	3240	}
2786	}	3241	}
2787		3242
		3243	/*****************************************************************************/
		3244
		3245	#if EV_WALK_ENABLE
		3246	void
		3247	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3248	{
		3249	int i, j;
		3250	ev_watcher_list *wl, *wn;
		3251
		3252	if (types & (EV_IO | EV_EMBED))
		3253	for (i = 0; i < anfdmax; ++i)
		3254	for (wl = anfds [i].head; wl; )
		3255	{
		3256	wn = wl->next;
		3257
		3258	#if EV_EMBED_ENABLE
		3259	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3260	{
		3261	if (types & EV_EMBED)
		3262	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3263	}
		3264	else
		3265	#endif
		3266	#if EV_USE_INOTIFY
		3267	if (ev_cb ((ev_io *)wl) == infy_cb)
		3268	;
		3269	else
		3270	#endif
		3271	if ((ev_io *)wl != &pipe_w)
		3272	if (types & EV_IO)
		3273	cb (EV_A_ EV_IO, wl);
		3274
		3275	wl = wn;
		3276	}
		3277
		3278	if (types & (EV_TIMER | EV_STAT))
		3279	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3280	#if EV_STAT_ENABLE
		3281	/*TODO: timer is not always active*/
		3282	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3283	{
		3284	if (types & EV_STAT)
		3285	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3286	}
		3287	else
		3288	#endif
		3289	if (types & EV_TIMER)
		3290	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3291
		3292	#if EV_PERIODIC_ENABLE
		3293	if (types & EV_PERIODIC)
		3294	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3295	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3296	#endif
		3297
		3298	#if EV_IDLE_ENABLE
		3299	if (types & EV_IDLE)
		3300	for (j = NUMPRI; i--; )
		3301	for (i = idlecnt [j]; i--; )
		3302	cb (EV_A_ EV_IDLE, idles [j][i]);
		3303	#endif
		3304
		3305	#if EV_FORK_ENABLE
		3306	if (types & EV_FORK)
		3307	for (i = forkcnt; i--; )
		3308	if (ev_cb (forks [i]) != embed_fork_cb)
		3309	cb (EV_A_ EV_FORK, forks [i]);
		3310	#endif
		3311
		3312	#if EV_ASYNC_ENABLE
		3313	if (types & EV_ASYNC)
		3314	for (i = asynccnt; i--; )
		3315	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3316	#endif
		3317
		3318	if (types & EV_PREPARE)
		3319	for (i = preparecnt; i--; )
		3320	#if EV_EMBED_ENABLE
		3321	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3322	#endif
		3323	cb (EV_A_ EV_PREPARE, prepares [i]);
		3324
		3325	if (types & EV_CHECK)
		3326	for (i = checkcnt; i--; )
		3327	cb (EV_A_ EV_CHECK, checks [i]);
		3328
		3329	if (types & EV_SIGNAL)
		3330	for (i = 0; i < signalmax; ++i)
		3331	for (wl = signals [i].head; wl; )
		3332	{
		3333	wn = wl->next;
		3334	cb (EV_A_ EV_SIGNAL, wl);
		3335	wl = wn;
		3336	}
		3337
		3338	if (types & EV_CHILD)
		3339	for (i = EV_PID_HASHSIZE; i--; )
		3340	for (wl = childs [i]; wl; )
		3341	{
		3342	wn = wl->next;
		3343	cb (EV_A_ EV_CHILD, wl);
		3344	wl = wn;
		3345	}
		3346	/* EV_STAT 0x00001000 /* stat data changed */
		3347	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3348	}
		3349	#endif
		3350
2788	#if EV_MULTIPLICITY	3351	#if EV_MULTIPLICITY
2789	#include "ev_wrap.h"	3352	#include "ev_wrap.h"
2790	#endif	3353	#endif
2791		3354
2792	#ifdef __cplusplus	3355	#ifdef __cplusplus

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