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Comparing libev/ev.c (file contents):
Revision 1.250 by root, Thu May 22 02:44:57 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
…		…
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
…		…
277	# include <sys/select.h>	306	# include <sys/select.h>
278	# endif	307	# endif
279	#endif	308	#endif
280		309
281	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
282	# 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
283	#endif	319	#endif
284		320
285	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
286	# 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
287	#endif	332	#endif
288		333
289	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
290	/* 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 */
291	# include <stdint.h>	336	# include <stdint.h>
…		…
352	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
353		398
354	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
355	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
356		401
357	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
358	/* 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 */
359	/* 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
360	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? */
361	#endif	410	#endif
362		411
363	#ifdef _WIN32	412	#ifdef _WIN32
364	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
373	{	422	{
374	syserr_cb = cb;	423	syserr_cb = cb;
375	}	424	}
376		425
377	static void noinline	426	static void noinline
378	syserr (const char *msg)	427	ev_syserr (const char *msg)
379	{	428	{
380	if (!msg)	429	if (!msg)
381	msg = "(libev) system error";	430	msg = "(libev) system error";
382		431
383	if (syserr_cb)	432	if (syserr_cb)
…		…
429	#define ev_malloc(size) ev_realloc (0, (size))	478	#define ev_malloc(size) ev_realloc (0, (size))
430	#define ev_free(ptr) ev_realloc ((ptr), 0)	479	#define ev_free(ptr) ev_realloc ((ptr), 0)
431		480
432	/*****************************************************************************/	481	/*****************************************************************************/
433		482
		483	/* file descriptor info structure */
434	typedef struct	484	typedef struct
435	{	485	{
436	WL head;	486	WL head;
437	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 */
438	unsigned char reify;	490	unsigned char unused;
		491	#if EV_USE_EPOLL
		492	unsigned int egen; /* generation counter to counter epoll bugs */
		493	#endif
439	#if EV_SELECT_IS_WINSOCKET	494	#if EV_SELECT_IS_WINSOCKET
440	SOCKET handle;	495	SOCKET handle;
441	#endif	496	#endif
442	} ANFD;	497	} ANFD;
443		498
		499	/* stores the pending event set for a given watcher */
444	typedef struct	500	typedef struct
445	{	501	{
446	W w;	502	W w;
447	int events;	503	int events; /* the pending event set for the given watcher */
448	} ANPENDING;	504	} ANPENDING;
449		505
450	#if EV_USE_INOTIFY	506	#if EV_USE_INOTIFY
451	/* hash table entry per inotify-id */	507	/* hash table entry per inotify-id */
452	typedef struct	508	typedef struct
…		…
455	} ANFS;	511	} ANFS;
456	#endif	512	#endif
457		513
458	/* Heap Entry */	514	/* Heap Entry */
459	#if EV_HEAP_CACHE_AT	515	#if EV_HEAP_CACHE_AT
		516	/* a heap element */
460	typedef struct {	517	typedef struct {
461	ev_tstamp at;	518	ev_tstamp at;
462	WT w;	519	WT w;
463	} ANHE;	520	} ANHE;
464		521
465	#define ANHE_w(he) (he).w /* access watcher, read-write */	522	#define ANHE_w(he) (he).w /* access watcher, read-write */
466	#define ANHE_at(he) (he).at /* access cached at, read-only */	523	#define ANHE_at(he) (he).at /* access cached at, read-only */
467	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	524	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
468	#else	525	#else
		526	/* a heap element */
469	typedef WT ANHE;	527	typedef WT ANHE;
470		528
471	#define ANHE_w(he) (he)	529	#define ANHE_w(he) (he)
472	#define ANHE_at(he) (he)->at	530	#define ANHE_at(he) (he)->at
473	#define ANHE_at_cache(he)	531	#define ANHE_at_cache(he)
…		…
503		561
504	ev_tstamp	562	ev_tstamp
505	ev_time (void)	563	ev_time (void)
506	{	564	{
507	#if EV_USE_REALTIME	565	#if EV_USE_REALTIME
		566	if (expect_true (have_realtime))
		567	{
508	struct timespec ts;	568	struct timespec ts;
509	clock_gettime (CLOCK_REALTIME, &ts);	569	clock_gettime (CLOCK_REALTIME, &ts);
510	return ts.tv_sec + ts.tv_nsec * 1e-9;	570	return ts.tv_sec + ts.tv_nsec * 1e-9;
511	#else	571	}
		572	#endif
		573
512	struct timeval tv;	574	struct timeval tv;
513	gettimeofday (&tv, 0);	575	gettimeofday (&tv, 0);
514	return tv.tv_sec + tv.tv_usec * 1e-6;	576	return tv.tv_sec + tv.tv_usec * 1e-6;
515	#endif
516	}	577	}
517		578
518	ev_tstamp inline_size	579	inline_size ev_tstamp
519	get_clock (void)	580	get_clock (void)
520	{	581	{
521	#if EV_USE_MONOTONIC	582	#if EV_USE_MONOTONIC
522	if (expect_true (have_monotonic))	583	if (expect_true (have_monotonic))
523	{	584	{
…		…
556	struct timeval tv;	617	struct timeval tv;
557		618
558	tv.tv_sec = (time_t)delay;	619	tv.tv_sec = (time_t)delay;
559	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	620	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560		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 */
561	select (0, 0, 0, 0, &tv);	625	select (0, 0, 0, 0, &tv);
562	#endif	626	#endif
563	}	627	}
564	}	628	}
565		629
566	/*****************************************************************************/	630	/*****************************************************************************/
567		631
568	#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 */
569		633
570	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
571	array_nextsize (int elem, int cur, int cnt)	637	array_nextsize (int elem, int cur, int cnt)
572	{	638	{
573	int ncur = cur + 1;	639	int ncur = cur + 1;
574		640
575	do	641	do
…		…
592	array_realloc (int elem, void *base, int *cur, int cnt)	658	array_realloc (int elem, void *base, int *cur, int cnt)
593	{	659	{
594	*cur = array_nextsize (elem, *cur, cnt);	660	*cur = array_nextsize (elem, *cur, cnt);
595	return ev_realloc (base, elem * *cur);	661	return ev_realloc (base, elem * *cur);
596	}	662	}
		663
		664	#define array_init_zero(base,count) \
		665	memset ((void *)(base), 0, sizeof (*(base)) * (count))
597		666
598	#define array_needsize(type,base,cur,cnt,init) \	667	#define array_needsize(type,base,cur,cnt,init) \
599	if (expect_false ((cnt) > (cur))) \	668	if (expect_false ((cnt) > (cur))) \
600	{ \	669	{ \
601	int ocur_ = (cur); \	670	int ocur_ = (cur); \
…		…
613	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	682	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614	}	683	}
615	#endif	684	#endif
616		685
617	#define array_free(stem, idx) \	686	#define array_free(stem, idx) \
618	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
619		688
620	/*****************************************************************************/	689	/*****************************************************************************/
		690
		691	/* dummy callback for pending events */
		692	static void noinline
		693	pendingcb (EV_P_ ev_prepare *w, int revents)
		694	{
		695	}
621		696
622	void noinline	697	void noinline
623	ev_feed_event (EV_P_ void *w, int revents)	698	ev_feed_event (EV_P_ void *w, int revents)
624	{	699	{
625	W w_ = (W)w;	700	W w_ = (W)w;
…		…
634	pendings [pri][w_->pending - 1].w = w_;	709	pendings [pri][w_->pending - 1].w = w_;
635	pendings [pri][w_->pending - 1].events = revents;	710	pendings [pri][w_->pending - 1].events = revents;
636	}	711	}
637	}	712	}
638		713
639	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
640	queue_events (EV_P_ W *events, int eventcnt, int type)	730	queue_events (EV_P_ W *events, int eventcnt, int type)
641	{	731	{
642	int i;	732	int i;
643		733
644	for (i = 0; i < eventcnt; ++i)	734	for (i = 0; i < eventcnt; ++i)
645	ev_feed_event (EV_A_ events [i], type);	735	ev_feed_event (EV_A_ events [i], type);
646	}	736	}
647		737
648	/*****************************************************************************/	738	/*****************************************************************************/
649		739
650	void inline_size	740	inline_speed void
651	anfds_init (ANFD *base, int count)
652	{
653	while (count--)
654	{
655	base->head = 0;
656	base->events = EV_NONE;
657	base->reify = 0;
658
659	++base;
660	}
661	}
662
663	void inline_speed
664	fd_event (EV_P_ int fd, int revents)	741	fd_event (EV_P_ int fd, int revents)
665	{	742	{
666	ANFD *anfd = anfds + fd;	743	ANFD *anfd = anfds + fd;
667	ev_io *w;	744	ev_io *w;
668		745
…		…
680	{	757	{
681	if (fd >= 0 && fd < anfdmax)	758	if (fd >= 0 && fd < anfdmax)
682	fd_event (EV_A_ fd, revents);	759	fd_event (EV_A_ fd, revents);
683	}	760	}
684		761
685	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
686	fd_reify (EV_P)	765	fd_reify (EV_P)
687	{	766	{
688	int i;	767	int i;
689		768
690	for (i = 0; i < fdchangecnt; ++i)	769	for (i = 0; i < fdchangecnt; ++i)
…		…
699	events |= (unsigned char)w->events;	778	events |= (unsigned char)w->events;
700		779
701	#if EV_SELECT_IS_WINSOCKET	780	#if EV_SELECT_IS_WINSOCKET
702	if (events)	781	if (events)
703	{	782	{
704	unsigned long argp;	783	unsigned long arg;
705	#ifdef EV_FD_TO_WIN32_HANDLE	784	#ifdef EV_FD_TO_WIN32_HANDLE
706	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	785	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707	#else	786	#else
708	anfd->handle = _get_osfhandle (fd);	787	anfd->handle = _get_osfhandle (fd);
709	#endif	788	#endif
710	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));
711	}	790	}
712	#endif	791	#endif
713		792
714	{	793	{
715	unsigned char o_events = anfd->events;	794	unsigned char o_events = anfd->events;
716	unsigned char o_reify = anfd->reify;	795	unsigned char o_reify = anfd->reify;
717		796
718	anfd->reify = 0;	797	anfd->reify = 0;
719	anfd->events = events;	798	anfd->events = events;
720		799
721	if (o_events != events || o_reify & EV_IOFDSET)	800	if (o_events != events || o_reify & EV__IOFDSET)
722	backend_modify (EV_A_ fd, o_events, events);	801	backend_modify (EV_A_ fd, o_events, events);
723	}	802	}
724	}	803	}
725		804
726	fdchangecnt = 0;	805	fdchangecnt = 0;
727	}	806	}
728		807
729	void inline_size	808	/* something about the given fd changed */
		809	inline_size void
730	fd_change (EV_P_ int fd, int flags)	810	fd_change (EV_P_ int fd, int flags)
731	{	811	{
732	unsigned char reify = anfds [fd].reify;	812	unsigned char reify = anfds [fd].reify;
733	anfds [fd].reify |= flags;	813	anfds [fd].reify |= flags;
734		814
…		…
738	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	818	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739	fdchanges [fdchangecnt - 1] = fd;	819	fdchanges [fdchangecnt - 1] = fd;
740	}	820	}
741	}	821	}
742		822
743	void inline_speed	823	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		824	inline_speed void
744	fd_kill (EV_P_ int fd)	825	fd_kill (EV_P_ int fd)
745	{	826	{
746	ev_io *w;	827	ev_io *w;
747		828
748	while ((w = (ev_io *)anfds [fd].head))	829	while ((w = (ev_io *)anfds [fd].head))
…		…
750	ev_io_stop (EV_A_ w);	831	ev_io_stop (EV_A_ w);
751	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);
752	}	833	}
753	}	834	}
754		835
755	int inline_size	836	/* check whether the given fd is atcually valid, for error recovery */
		837	inline_size int
756	fd_valid (int fd)	838	fd_valid (int fd)
757	{	839	{
758	#ifdef _WIN32	840	#ifdef _WIN32
759	return _get_osfhandle (fd) != -1;	841	return _get_osfhandle (fd) != -1;
760	#else	842	#else
…		…
768	{	850	{
769	int fd;	851	int fd;
770		852
771	for (fd = 0; fd < anfdmax; ++fd)	853	for (fd = 0; fd < anfdmax; ++fd)
772	if (anfds [fd].events)	854	if (anfds [fd].events)
773	if (!fd_valid (fd) == -1 && errno == EBADF)	855	if (!fd_valid (fd) && errno == EBADF)
774	fd_kill (EV_A_ fd);	856	fd_kill (EV_A_ fd);
775	}	857	}
776		858
777	/* 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 */
778	static void noinline	860	static void noinline
…		…
796		878
797	for (fd = 0; fd < anfdmax; ++fd)	879	for (fd = 0; fd < anfdmax; ++fd)
798	if (anfds [fd].events)	880	if (anfds [fd].events)
799	{	881	{
800	anfds [fd].events = 0;	882	anfds [fd].events = 0;
		883	anfds [fd].emask = 0;
801	fd_change (EV_A_ fd, EV_IOFDSET | 1);	884	fd_change (EV_A_ fd, EV__IOFDSET | 1);
802	}	885	}
803	}	886	}
804		887
805	/*****************************************************************************/	888	/*****************************************************************************/
806		889
…		…
822	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	905	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	906	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824	#define UPHEAP_DONE(p,k) ((p) == (k))	907	#define UPHEAP_DONE(p,k) ((p) == (k))
825		908
826	/* away from the root */	909	/* away from the root */
827	void inline_speed	910	inline_speed void
828	downheap (ANHE *heap, int N, int k)	911	downheap (ANHE *heap, int N, int k)
829	{	912	{
830	ANHE he = heap [k];	913	ANHE he = heap [k];
831	ANHE *E = heap + N + HEAP0;	914	ANHE *E = heap + N + HEAP0;
832		915
…		…
872	#define HEAP0 1	955	#define HEAP0 1
873	#define HPARENT(k) ((k) >> 1)	956	#define HPARENT(k) ((k) >> 1)
874	#define UPHEAP_DONE(p,k) (!(p))	957	#define UPHEAP_DONE(p,k) (!(p))
875		958
876	/* away from the root */	959	/* away from the root */
877	void inline_speed	960	inline_speed void
878	downheap (ANHE *heap, int N, int k)	961	downheap (ANHE *heap, int N, int k)
879	{	962	{
880	ANHE he = heap [k];	963	ANHE he = heap [k];
881		964
882	for (;;)	965	for (;;)
…		…
902	ev_active (ANHE_w (he)) = k;	985	ev_active (ANHE_w (he)) = k;
903	}	986	}
904	#endif	987	#endif
905		988
906	/* towards the root */	989	/* towards the root */
907	void inline_speed	990	inline_speed void
908	upheap (ANHE *heap, int k)	991	upheap (ANHE *heap, int k)
909	{	992	{
910	ANHE he = heap [k];	993	ANHE he = heap [k];
911		994
912	for (;;)	995	for (;;)
…		…
923		1006
924	heap [k] = he;	1007	heap [k] = he;
925	ev_active (ANHE_w (he)) = k;	1008	ev_active (ANHE_w (he)) = k;
926	}	1009	}
927		1010
928	void inline_size	1011	/* move an element suitably so it is in a correct place */
		1012	inline_size void
929	adjustheap (ANHE *heap, int N, int k)	1013	adjustheap (ANHE *heap, int N, int k)
930	{	1014	{
931	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1015	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
932	upheap (heap, k);	1016	upheap (heap, k);
933	else	1017	else
934	downheap (heap, N, k);	1018	downheap (heap, N, k);
935	}	1019	}
936		1020
937	/* rebuild the heap: this function is used only once and executed rarely */	1021	/* rebuild the heap: this function is used only once and executed rarely */
938	void inline_size	1022	inline_size void
939	reheap (ANHE *heap, int N)	1023	reheap (ANHE *heap, int N)
940	{	1024	{
941	int i;	1025	int i;
		1026
942	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1027	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
943	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */	1028	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
944	for (i = 0; i < N; ++i)	1029	for (i = 0; i < N; ++i)
945	upheap (heap, i + HEAP0);	1030	upheap (heap, i + HEAP0);
946	}	1031	}
947		1032
948	#if EV_VERIFY
949	static void
950	checkheap (ANHE *heap, int N)
951	{
952	int i;
953
954	for (i = HEAP0; i < N + HEAP0; ++i)
955	{
956	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
957	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
958	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
959	}
960	}
961	#endif
962
963	/*****************************************************************************/	1033	/*****************************************************************************/
964		1034
		1035	/* associate signal watchers to a signal signal */
965	typedef struct	1036	typedef struct
966	{	1037	{
967	WL head;	1038	WL head;
968	EV_ATOMIC_T gotsig;	1039	EV_ATOMIC_T gotsig;
969	} ANSIG;	1040	} ANSIG;
…		…
971	static ANSIG *signals;	1042	static ANSIG *signals;
972	static int signalmax;	1043	static int signalmax;
973		1044
974	static EV_ATOMIC_T gotsig;	1045	static EV_ATOMIC_T gotsig;
975		1046
976	void inline_size
977	signals_init (ANSIG *base, int count)
978	{
979	while (count--)
980	{
981	base->head = 0;
982	base->gotsig = 0;
983
984	++base;
985	}
986	}
987
988	/*****************************************************************************/	1047	/*****************************************************************************/
989		1048
990	void inline_speed	1049	/* used to prepare libev internal fd's */
		1050	/* this is not fork-safe */
		1051	inline_speed void
991	fd_intern (int fd)	1052	fd_intern (int fd)
992	{	1053	{
993	#ifdef _WIN32	1054	#ifdef _WIN32
994	int arg = 1;	1055	unsigned long arg = 1;
995	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1056	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
996	#else	1057	#else
997	fcntl (fd, F_SETFD, FD_CLOEXEC);	1058	fcntl (fd, F_SETFD, FD_CLOEXEC);
998	fcntl (fd, F_SETFL, O_NONBLOCK);	1059	fcntl (fd, F_SETFL, O_NONBLOCK);
999	#endif	1060	#endif
1000	}	1061	}
1001		1062
1002	static void noinline	1063	static void noinline
1003	evpipe_init (EV_P)	1064	evpipe_init (EV_P)
1004	{	1065	{
1005	if (!ev_is_active (&pipeev))	1066	if (!ev_is_active (&pipe_w))
1006	{	1067	{
1007	#if EV_USE_EVENTFD	1068	#if EV_USE_EVENTFD
1008	if ((evfd = eventfd (0, 0)) >= 0)	1069	if ((evfd = eventfd (0, 0)) >= 0)
1009	{	1070	{
1010	evpipe [0] = -1;	1071	evpipe [0] = -1;
1011	fd_intern (evfd);	1072	fd_intern (evfd);
1012	ev_io_set (&pipeev, evfd, EV_READ);	1073	ev_io_set (&pipe_w, evfd, EV_READ);
1013	}	1074	}
1014	else	1075	else
1015	#endif	1076	#endif
1016	{	1077	{
1017	while (pipe (evpipe))	1078	while (pipe (evpipe))
1018	syserr ("(libev) error creating signal/async pipe");	1079	ev_syserr ("(libev) error creating signal/async pipe");
1019		1080
1020	fd_intern (evpipe [0]);	1081	fd_intern (evpipe [0]);
1021	fd_intern (evpipe [1]);	1082	fd_intern (evpipe [1]);
1022	ev_io_set (&pipeev, evpipe [0], EV_READ);	1083	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1023	}	1084	}
1024		1085
1025	ev_io_start (EV_A_ &pipeev);	1086	ev_io_start (EV_A_ &pipe_w);
1026	ev_unref (EV_A); /* watcher should not keep loop alive */	1087	ev_unref (EV_A); /* watcher should not keep loop alive */
1027	}	1088	}
1028	}	1089	}
1029		1090
1030	void inline_size	1091	inline_size void
1031	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1092	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1032	{	1093	{
1033	if (!*flag)	1094	if (!*flag)
1034	{	1095	{
1035	int old_errno = errno; /* save errno because write might clobber it */	1096	int old_errno = errno; /* save errno because write might clobber it */
…		…
1048		1109
1049	errno = old_errno;	1110	errno = old_errno;
1050	}	1111	}
1051	}	1112	}
1052		1113
		1114	/* called whenever the libev signal pipe */
		1115	/* got some events (signal, async) */
1053	static void	1116	static void
1054	pipecb (EV_P_ ev_io *iow, int revents)	1117	pipecb (EV_P_ ev_io *iow, int revents)
1055	{	1118	{
1056	#if EV_USE_EVENTFD	1119	#if EV_USE_EVENTFD
1057	if (evfd >= 0)	1120	if (evfd >= 0)
…		…
1113	ev_feed_signal_event (EV_P_ int signum)	1176	ev_feed_signal_event (EV_P_ int signum)
1114	{	1177	{
1115	WL w;	1178	WL w;
1116		1179
1117	#if EV_MULTIPLICITY	1180	#if EV_MULTIPLICITY
1118	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));
1119	#endif	1182	#endif
1120		1183
1121	--signum;	1184	--signum;
1122		1185
1123	if (signum < 0 || signum >= signalmax)	1186	if (signum < 0 || signum >= signalmax)
…		…
1139		1202
1140	#ifndef WIFCONTINUED	1203	#ifndef WIFCONTINUED
1141	# define WIFCONTINUED(status) 0	1204	# define WIFCONTINUED(status) 0
1142	#endif	1205	#endif
1143		1206
1144	void inline_speed	1207	/* handle a single child status event */
		1208	inline_speed void
1145	child_reap (EV_P_ int chain, int pid, int status)	1209	child_reap (EV_P_ int chain, int pid, int status)
1146	{	1210	{
1147	ev_child *w;	1211	ev_child *w;
1148	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1212	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1149		1213
…		…
1162		1226
1163	#ifndef WCONTINUED	1227	#ifndef WCONTINUED
1164	# define WCONTINUED 0	1228	# define WCONTINUED 0
1165	#endif	1229	#endif
1166		1230
		1231	/* called on sigchld etc., calls waitpid */
1167	static void	1232	static void
1168	childcb (EV_P_ ev_signal *sw, int revents)	1233	childcb (EV_P_ ev_signal *sw, int revents)
1169	{	1234	{
1170	int pid, status;	1235	int pid, status;
1171		1236
…		…
1252	/* kqueue is borked on everything but netbsd apparently */	1317	/* kqueue is borked on everything but netbsd apparently */
1253	/* 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 */
1254	flags &= ~EVBACKEND_KQUEUE;	1319	flags &= ~EVBACKEND_KQUEUE;
1255	#endif	1320	#endif
1256	#ifdef __APPLE__	1321	#ifdef __APPLE__
1257	// flags &= ~EVBACKEND_KQUEUE; for documentation	1322	/* only select works correctly on that "unix-certified" platform */
1258	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 */
1259	#endif	1325	#endif
1260		1326
1261	return flags;	1327	return flags;
1262	}	1328	}
1263		1329
…		…
1295	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1361	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1296	{	1362	{
1297	timeout_blocktime = interval;	1363	timeout_blocktime = interval;
1298	}	1364	}
1299		1365
		1366	/* initialise a loop structure, must be zero-initialised */
1300	static void noinline	1367	static void noinline
1301	loop_init (EV_P_ unsigned int flags)	1368	loop_init (EV_P_ unsigned int flags)
1302	{	1369	{
1303	if (!backend)	1370	if (!backend)
1304	{	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
1305	#if EV_USE_MONOTONIC	1382	#if EV_USE_MONOTONIC
		1383	if (!have_monotonic)
1306	{	1384	{
1307	struct timespec ts;	1385	struct timespec ts;
		1386
1308	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1387	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1309	have_monotonic = 1;	1388	have_monotonic = 1;
1310	}	1389	}
1311	#endif	1390	#endif
1312		1391
1313	ev_rt_now = ev_time ();	1392	ev_rt_now = ev_time ();
1314	mn_now = get_clock ();	1393	mn_now = get_clock ();
1315	now_floor = mn_now;	1394	now_floor = mn_now;
…		…
1352	#endif	1431	#endif
1353	#if EV_USE_SELECT	1432	#if EV_USE_SELECT
1354	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1433	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1355	#endif	1434	#endif
1356		1435
		1436	ev_prepare_init (&pending_w, pendingcb);
		1437
1357	ev_init (&pipeev, pipecb);	1438	ev_init (&pipe_w, pipecb);
1358	ev_set_priority (&pipeev, EV_MAXPRI);	1439	ev_set_priority (&pipe_w, EV_MAXPRI);
1359	}	1440	}
1360	}	1441	}
1361		1442
		1443	/* free up a loop structure */
1362	static void noinline	1444	static void noinline
1363	loop_destroy (EV_P)	1445	loop_destroy (EV_P)
1364	{	1446	{
1365	int i;	1447	int i;
1366		1448
1367	if (ev_is_active (&pipeev))	1449	if (ev_is_active (&pipe_w))
1368	{	1450	{
1369	ev_ref (EV_A); /* signal watcher */	1451	ev_ref (EV_A); /* signal watcher */
1370	ev_io_stop (EV_A_ &pipeev);	1452	ev_io_stop (EV_A_ &pipe_w);
1371		1453
1372	#if EV_USE_EVENTFD	1454	#if EV_USE_EVENTFD
1373	if (evfd >= 0)	1455	if (evfd >= 0)
1374	close (evfd);	1456	close (evfd);
1375	#endif	1457	#endif
…		…
1414	}	1496	}
1415		1497
1416	ev_free (anfds); anfdmax = 0;	1498	ev_free (anfds); anfdmax = 0;
1417		1499
1418	/* 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);
1419	array_free (fdchange, EMPTY);	1502	array_free (fdchange, EMPTY);
1420	array_free (timer, EMPTY);	1503	array_free (timer, EMPTY);
1421	#if EV_PERIODIC_ENABLE	1504	#if EV_PERIODIC_ENABLE
1422	array_free (periodic, EMPTY);	1505	array_free (periodic, EMPTY);
1423	#endif	1506	#endif
…		…
1432		1515
1433	backend = 0;	1516	backend = 0;
1434	}	1517	}
1435		1518
1436	#if EV_USE_INOTIFY	1519	#if EV_USE_INOTIFY
1437	void inline_size infy_fork (EV_P);	1520	inline_size void infy_fork (EV_P);
1438	#endif	1521	#endif
1439		1522
1440	void inline_size	1523	inline_size void
1441	loop_fork (EV_P)	1524	loop_fork (EV_P)
1442	{	1525	{
1443	#if EV_USE_PORT	1526	#if EV_USE_PORT
1444	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1527	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1445	#endif	1528	#endif
…		…
1451	#endif	1534	#endif
1452	#if EV_USE_INOTIFY	1535	#if EV_USE_INOTIFY
1453	infy_fork (EV_A);	1536	infy_fork (EV_A);
1454	#endif	1537	#endif
1455		1538
1456	if (ev_is_active (&pipeev))	1539	if (ev_is_active (&pipe_w))
1457	{	1540	{
1458	/* this "locks" the handlers against writing to the pipe */	1541	/* this "locks" the handlers against writing to the pipe */
1459	/* while we modify the fd vars */	1542	/* while we modify the fd vars */
1460	gotsig = 1;	1543	gotsig = 1;
1461	#if EV_ASYNC_ENABLE	1544	#if EV_ASYNC_ENABLE
1462	gotasync = 1;	1545	gotasync = 1;
1463	#endif	1546	#endif
1464		1547
1465	ev_ref (EV_A);	1548	ev_ref (EV_A);
1466	ev_io_stop (EV_A_ &pipeev);	1549	ev_io_stop (EV_A_ &pipe_w);
1467		1550
1468	#if EV_USE_EVENTFD	1551	#if EV_USE_EVENTFD
1469	if (evfd >= 0)	1552	if (evfd >= 0)
1470	close (evfd);	1553	close (evfd);
1471	#endif	1554	#endif
…		…
1476	close (evpipe [1]);	1559	close (evpipe [1]);
1477	}	1560	}
1478		1561
1479	evpipe_init (EV_A);	1562	evpipe_init (EV_A);
1480	/* now iterate over everything, in case we missed something */	1563	/* now iterate over everything, in case we missed something */
1481	pipecb (EV_A_ &pipeev, EV_READ);	1564	pipecb (EV_A_ &pipe_w, EV_READ);
1482	}	1565	}
1483		1566
1484	postfork = 0;	1567	postfork = 0;
1485	}	1568	}
1486		1569
…		…
1513	{	1596	{
1514	postfork = 1; /* must be in line with ev_default_fork */	1597	postfork = 1; /* must be in line with ev_default_fork */
1515	}	1598	}
1516		1599
1517	#if EV_VERIFY	1600	#if EV_VERIFY
1518	static void	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
1519	array_check (W **ws, int cnt)	1626	array_verify (EV_P_ W *ws, int cnt)
1520	{	1627	{
1521	while (cnt--)	1628	while (cnt--)
		1629	{
1522	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1630	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1631	verify_watcher (EV_A_ ws [cnt]);
		1632	}
1523	}	1633	}
1524	#endif	1634	#endif
1525		1635
1526	void	1636	void
1527	ev_loop_verify (EV_P)	1637	ev_loop_verify (EV_P)
1528	{	1638	{
1529	#if EV_VERIFY	1639	#if EV_VERIFY
1530	int i;	1640	int i;
		1641	WL w;
1531		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);
1532	checkheap (timers, timercnt);	1659	verify_heap (EV_A_ timers, timercnt);
		1660
1533	#if EV_PERIODIC_ENABLE	1661	#if EV_PERIODIC_ENABLE
		1662	assert (periodicmax >= periodiccnt);
1534	checkheap (periodics, periodiccnt);	1663	verify_heap (EV_A_ periodics, periodiccnt);
1535	#endif	1664	#endif
1536		1665
		1666	for (i = NUMPRI; i--; )
		1667	{
		1668	assert (pendingmax [i] >= pendingcnt [i]);
1537	#if EV_IDLE_ENABLE	1669	#if EV_IDLE_ENABLE
1538	for (i = NUMPRI; i--; )	1670	assert (idleall >= 0);
		1671	assert (idlemax [i] >= idlecnt [i]);
1539	array_check ((W **)idles [i], idlecnt [i]);	1672	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1540	#endif	1673	#endif
		1674	}
		1675
1541	#if EV_FORK_ENABLE	1676	#if EV_FORK_ENABLE
		1677	assert (forkmax >= forkcnt);
1542	array_check ((W **)forks, forkcnt);	1678	array_verify (EV_A_ (W *)forks, forkcnt);
1543	#endif	1679	#endif
		1680
1544	#if EV_ASYNC_ENABLE	1681	#if EV_ASYNC_ENABLE
		1682	assert (asyncmax >= asynccnt);
1545	array_check ((W **)asyncs, 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)
1546	#endif	1695	# endif
1547	array_check ((W **)prepares, preparecnt);
1548	array_check ((W **)checks, checkcnt);
1549	#endif	1696	#endif
1550	}	1697	}
1551		1698
1552	#endif /* multiplicity */	1699	#endif /* multiplicity */
1553		1700
…		…
1590	{	1737	{
1591	#if EV_MULTIPLICITY	1738	#if EV_MULTIPLICITY
1592	struct ev_loop *loop = ev_default_loop_ptr;	1739	struct ev_loop *loop = ev_default_loop_ptr;
1593	#endif	1740	#endif
1594		1741
		1742	ev_default_loop_ptr = 0;
		1743
1595	#ifndef _WIN32	1744	#ifndef _WIN32
1596	ev_ref (EV_A); /* child watcher */	1745	ev_ref (EV_A); /* child watcher */
1597	ev_signal_stop (EV_A_ &childev);	1746	ev_signal_stop (EV_A_ &childev);
1598	#endif	1747	#endif
1599		1748
…		…
1605	{	1754	{
1606	#if EV_MULTIPLICITY	1755	#if EV_MULTIPLICITY
1607	struct ev_loop *loop = ev_default_loop_ptr;	1756	struct ev_loop *loop = ev_default_loop_ptr;
1608	#endif	1757	#endif
1609		1758
1610	if (backend)
1611	postfork = 1; /* must be in line with ev_loop_fork */	1759	postfork = 1; /* must be in line with ev_loop_fork */
1612	}	1760	}
1613		1761
1614	/*****************************************************************************/	1762	/*****************************************************************************/
1615		1763
1616	void	1764	void
1617	ev_invoke (EV_P_ void *w, int revents)	1765	ev_invoke (EV_P_ void *w, int revents)
1618	{	1766	{
1619	EV_CB_INVOKE ((W)w, revents);	1767	EV_CB_INVOKE ((W)w, revents);
1620	}	1768	}
1621		1769
1622	void inline_speed	1770	inline_speed void
1623	call_pending (EV_P)	1771	call_pending (EV_P)
1624	{	1772	{
1625	int pri;	1773	int pri;
1626		1774
1627	for (pri = NUMPRI; pri--; )	1775	for (pri = NUMPRI; pri--; )
1628	while (pendingcnt [pri])	1776	while (pendingcnt [pri])
1629	{	1777	{
1630	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1778	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1631		1779
1632	if (expect_true (p->w))
1633	{
1634	/*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 */
1635		1782
1636	p->w->pending = 0;	1783	p->w->pending = 0;
1637	EV_CB_INVOKE (p->w, p->events);	1784	EV_CB_INVOKE (p->w, p->events);
1638	EV_FREQUENT_CHECK;	1785	EV_FREQUENT_CHECK;
1639	}
1640	}	1786	}
1641	}	1787	}
1642		1788
1643	#if EV_IDLE_ENABLE	1789	#if EV_IDLE_ENABLE
1644	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
1645	idle_reify (EV_P)	1793	idle_reify (EV_P)
1646	{	1794	{
1647	if (expect_false (idleall))	1795	if (expect_false (idleall))
1648	{	1796	{
1649	int pri;	1797	int pri;
…		…
1661	}	1809	}
1662	}	1810	}
1663	}	1811	}
1664	#endif	1812	#endif
1665		1813
1666	void inline_size	1814	/* make timers pending */
		1815	inline_size void
1667	timers_reify (EV_P)	1816	timers_reify (EV_P)
1668	{	1817	{
1669	EV_FREQUENT_CHECK;	1818	EV_FREQUENT_CHECK;
1670		1819
1671	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1820	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1672	{	1821	{
1673	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1822	do
1674
1675	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1676
1677	/* first reschedule or stop timer */
1678	if (w->repeat)
1679	{	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	{
1680	ev_at (w) += w->repeat;	1831	ev_at (w) += w->repeat;
1681	if (ev_at (w) < mn_now)	1832	if (ev_at (w) < mn_now)
1682	ev_at (w) = mn_now;	1833	ev_at (w) = mn_now;
1683		1834
1684	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.));
1685		1836
1686	ANHE_at_cache (timers [HEAP0]);	1837	ANHE_at_cache (timers [HEAP0]);
1687	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);
1688	}	1845	}
1689	else	1846	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1690	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1691		1847
1692	EV_FREQUENT_CHECK;
1693	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1848	feed_reverse_done (EV_A_ EV_TIMEOUT);
1694	}	1849	}
1695	}	1850	}
1696		1851
1697	#if EV_PERIODIC_ENABLE	1852	#if EV_PERIODIC_ENABLE
1698	void inline_size	1853	/* make periodics pending */
		1854	inline_size void
1699	periodics_reify (EV_P)	1855	periodics_reify (EV_P)
1700	{	1856	{
1701	EV_FREQUENT_CHECK;	1857	EV_FREQUENT_CHECK;
1702		1858
1703	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1859	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704	{	1860	{
1705	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1861	int feed_count = 0;
1706		1862
1707	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1863	do
1708
1709	/* first reschedule or stop timer */
1710	if (w->reschedule_cb)
1711	{	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	{
1712	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1872	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1713		1873
1714	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));
1715		1875
1716	ANHE_at_cache (periodics [HEAP0]);	1876	ANHE_at_cache (periodics [HEAP0]);
1717	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);
1718	}	1903	}
1719	else if (w->interval)	1904	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1720	{
1721	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1722	/* if next trigger time is not sufficiently in the future, put it there */
1723	/* this might happen because of floating point inexactness */
1724	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1725	{
1726	ev_at (w) += w->interval;
1727		1905
1728	/* if interval is unreasonably low we might still have a time in the past */
1729	/* so correct this. this will make the periodic very inexact, but the user */
1730	/* has effectively asked to get triggered more often than possible */
1731	if (ev_at (w) < ev_rt_now)
1732	ev_at (w) = ev_rt_now;
1733	}
1734
1735	ANHE_at_cache (periodics [HEAP0]);
1736	downheap (periodics, periodiccnt, HEAP0);
1737	}
1738	else
1739	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1740
1741	EV_FREQUENT_CHECK;
1742	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1906	feed_reverse_done (EV_A_ EV_PERIODIC);
1743	}	1907	}
1744	}	1908	}
1745		1909
		1910	/* simply recalculate all periodics */
		1911	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1746	static void noinline	1912	static void noinline
1747	periodics_reschedule (EV_P)	1913	periodics_reschedule (EV_P)
1748	{	1914	{
1749	int i;	1915	int i;
1750		1916
…		…
1763		1929
1764	reheap (periodics, periodiccnt);	1930	reheap (periodics, periodiccnt);
1765	}	1931	}
1766	#endif	1932	#endif
1767		1933
1768	void inline_speed	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
		1940	for (i = 0; i < timercnt; ++i)
		1941	{
		1942	ANHE *he = timers + i + HEAP0;
		1943	ANHE_w (*he)->at += adjust;
		1944	ANHE_at_cache (*he);
		1945	}
		1946	}
		1947
		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
1769	time_update (EV_P_ ev_tstamp max_block)	1951	time_update (EV_P_ ev_tstamp max_block)
1770	{	1952	{
1771	int i;	1953	int i;
1772		1954
1773	#if EV_USE_MONOTONIC	1955	#if EV_USE_MONOTONIC
…		…
1806	ev_rt_now = ev_time ();	1988	ev_rt_now = ev_time ();
1807	mn_now = get_clock ();	1989	mn_now = get_clock ();
1808	now_floor = mn_now;	1990	now_floor = mn_now;
1809	}	1991	}
1810		1992
		1993	/* no timer adjustment, as the monotonic clock doesn't jump */
		1994	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1811	# if EV_PERIODIC_ENABLE	1995	# if EV_PERIODIC_ENABLE
1812	periodics_reschedule (EV_A);	1996	periodics_reschedule (EV_A);
1813	# endif	1997	# endif
1814	/* no timer adjustment, as the monotonic clock doesn't jump */
1815	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1816	}	1998	}
1817	else	1999	else
1818	#endif	2000	#endif
1819	{	2001	{
1820	ev_rt_now = ev_time ();	2002	ev_rt_now = ev_time ();
1821		2003
1822	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))
1823	{	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);
1824	#if EV_PERIODIC_ENABLE	2008	#if EV_PERIODIC_ENABLE
1825	periodics_reschedule (EV_A);	2009	periodics_reschedule (EV_A);
1826	#endif	2010	#endif
1827	/* adjust timers. this is easy, as the offset is the same for all of them */
1828	for (i = 0; i < timercnt; ++i)
1829	{
1830	ANHE *he = timers + i + HEAP0;
1831	ANHE_w (*he)->at += ev_rt_now - mn_now;
1832	ANHE_at_cache (*he);
1833	}
1834	}	2011	}
1835		2012
1836	mn_now = ev_rt_now;	2013	mn_now = ev_rt_now;
1837	}	2014	}
1838	}
1839
1840	void
1841	ev_ref (EV_P)
1842	{
1843	++activecnt;
1844	}
1845
1846	void
1847	ev_unref (EV_P)
1848	{
1849	--activecnt;
1850	}	2015	}
1851		2016
1852	static int loop_done;	2017	static int loop_done;
1853		2018
1854	void	2019	void
…		…
1888	{	2053	{
1889	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2054	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1890	call_pending (EV_A);	2055	call_pending (EV_A);
1891	}	2056	}
1892		2057
1893	if (expect_false (!activecnt))
1894	break;
1895
1896	/* we might have forked, so reify kernel state if necessary */	2058	/* we might have forked, so reify kernel state if necessary */
1897	if (expect_false (postfork))	2059	if (expect_false (postfork))
1898	loop_fork (EV_A);	2060	loop_fork (EV_A);
1899		2061
1900	/* update fd-related kernel structures */	2062	/* update fd-related kernel structures */
…		…
1979	ev_unloop (EV_P_ int how)	2141	ev_unloop (EV_P_ int how)
1980	{	2142	{
1981	loop_done = how;	2143	loop_done = how;
1982	}	2144	}
1983		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
1984	/*****************************************************************************/	2183	/*****************************************************************************/
		2184	/* singly-linked list management, used when the expected list length is short */
1985		2185
1986	void inline_size	2186	inline_size void
1987	wlist_add (WL *head, WL elem)	2187	wlist_add (WL *head, WL elem)
1988	{	2188	{
1989	elem->next = *head;	2189	elem->next = *head;
1990	*head = elem;	2190	*head = elem;
1991	}	2191	}
1992		2192
1993	void inline_size	2193	inline_size void
1994	wlist_del (WL *head, WL elem)	2194	wlist_del (WL *head, WL elem)
1995	{	2195	{
1996	while (*head)	2196	while (*head)
1997	{	2197	{
1998	if (*head == elem)	2198	if (*head == elem)
…		…
2003		2203
2004	head = &(*head)->next;	2204	head = &(*head)->next;
2005	}	2205	}
2006	}	2206	}
2007		2207
2008	void inline_speed	2208	/* internal, faster, version of ev_clear_pending */
		2209	inline_speed void
2009	clear_pending (EV_P_ W w)	2210	clear_pending (EV_P_ W w)
2010	{	2211	{
2011	if (w->pending)	2212	if (w->pending)
2012	{	2213	{
2013	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2214	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2014	w->pending = 0;	2215	w->pending = 0;
2015	}	2216	}
2016	}	2217	}
2017		2218
2018	int	2219	int
…		…
2022	int pending = w_->pending;	2223	int pending = w_->pending;
2023		2224
2024	if (expect_true (pending))	2225	if (expect_true (pending))
2025	{	2226	{
2026	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2227	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2228	p->w = (W)&pending_w;
2027	w_->pending = 0;	2229	w_->pending = 0;
2028	p->w = 0;
2029	return p->events;	2230	return p->events;
2030	}	2231	}
2031	else	2232	else
2032	return 0;	2233	return 0;
2033	}	2234	}
2034		2235
2035	void inline_size	2236	inline_size void
2036	pri_adjust (EV_P_ W w)	2237	pri_adjust (EV_P_ W w)
2037	{	2238	{
2038	int pri = w->priority;	2239	int pri = w->priority;
2039	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2240	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2040	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2241	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2041	w->priority = pri;	2242	w->priority = pri;
2042	}	2243	}
2043		2244
2044	void inline_speed	2245	inline_speed void
2045	ev_start (EV_P_ W w, int active)	2246	ev_start (EV_P_ W w, int active)
2046	{	2247	{
2047	pri_adjust (EV_A_ w);	2248	pri_adjust (EV_A_ w);
2048	w->active = active;	2249	w->active = active;
2049	ev_ref (EV_A);	2250	ev_ref (EV_A);
2050	}	2251	}
2051		2252
2052	void inline_size	2253	inline_size void
2053	ev_stop (EV_P_ W w)	2254	ev_stop (EV_P_ W w)
2054	{	2255	{
2055	ev_unref (EV_A);	2256	ev_unref (EV_A);
2056	w->active = 0;	2257	w->active = 0;
2057	}	2258	}
…		…
2064	int fd = w->fd;	2265	int fd = w->fd;
2065		2266
2066	if (expect_false (ev_is_active (w)))	2267	if (expect_false (ev_is_active (w)))
2067	return;	2268	return;
2068		2269
2069	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))));
2070		2272
2071	EV_FREQUENT_CHECK;	2273	EV_FREQUENT_CHECK;
2072		2274
2073	ev_start (EV_A_ (W)w, 1);	2275	ev_start (EV_A_ (W)w, 1);
2074	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2276	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2075	wlist_add (&anfds[fd].head, (WL)w);	2277	wlist_add (&anfds[fd].head, (WL)w);
2076		2278
2077	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2279	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2078	w->events &= ~EV_IOFDSET;	2280	w->events &= ~EV__IOFDSET;
2079		2281
2080	EV_FREQUENT_CHECK;	2282	EV_FREQUENT_CHECK;
2081	}	2283	}
2082		2284
2083	void noinline	2285	void noinline
…		…
2085	{	2287	{
2086	clear_pending (EV_A_ (W)w);	2288	clear_pending (EV_A_ (W)w);
2087	if (expect_false (!ev_is_active (w)))	2289	if (expect_false (!ev_is_active (w)))
2088	return;	2290	return;
2089		2291
2090	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));
2091		2293
2092	EV_FREQUENT_CHECK;	2294	EV_FREQUENT_CHECK;
2093		2295
2094	wlist_del (&anfds[w->fd].head, (WL)w);	2296	wlist_del (&anfds[w->fd].head, (WL)w);
2095	ev_stop (EV_A_ (W)w);	2297	ev_stop (EV_A_ (W)w);
…		…
2105	if (expect_false (ev_is_active (w)))	2307	if (expect_false (ev_is_active (w)))
2106	return;	2308	return;
2107		2309
2108	ev_at (w) += mn_now;	2310	ev_at (w) += mn_now;
2109		2311
2110	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.));
2111		2313
2112	EV_FREQUENT_CHECK;	2314	EV_FREQUENT_CHECK;
2113		2315
2114	++timercnt;	2316	++timercnt;
2115	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2317	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2118	ANHE_at_cache (timers [ev_active (w)]);	2320	ANHE_at_cache (timers [ev_active (w)]);
2119	upheap (timers, ev_active (w));	2321	upheap (timers, ev_active (w));
2120		2322
2121	EV_FREQUENT_CHECK;	2323	EV_FREQUENT_CHECK;
2122		2324
2123	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2325	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2124	}	2326	}
2125		2327
2126	void noinline	2328	void noinline
2127	ev_timer_stop (EV_P_ ev_timer *w)	2329	ev_timer_stop (EV_P_ ev_timer *w)
2128	{	2330	{
…		…
2133	EV_FREQUENT_CHECK;	2335	EV_FREQUENT_CHECK;
2134		2336
2135	{	2337	{
2136	int active = ev_active (w);	2338	int active = ev_active (w);
2137		2339
2138	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2340	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2139		2341
2140	--timercnt;	2342	--timercnt;
2141		2343
2142	if (expect_true (active < timercnt + HEAP0))	2344	if (expect_true (active < timercnt + HEAP0))
2143	{	2345	{
…		…
2187		2389
2188	if (w->reschedule_cb)	2390	if (w->reschedule_cb)
2189	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2391	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2190	else if (w->interval)	2392	else if (w->interval)
2191	{	2393	{
2192	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.));
2193	/* 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 */
2194	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;
2195	}	2397	}
2196	else	2398	else
2197	ev_at (w) = w->offset;	2399	ev_at (w) = w->offset;
…		…
2205	ANHE_at_cache (periodics [ev_active (w)]);	2407	ANHE_at_cache (periodics [ev_active (w)]);
2206	upheap (periodics, ev_active (w));	2408	upheap (periodics, ev_active (w));
2207		2409
2208	EV_FREQUENT_CHECK;	2410	EV_FREQUENT_CHECK;
2209		2411
2210	/*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));*/
2211	}	2413	}
2212		2414
2213	void noinline	2415	void noinline
2214	ev_periodic_stop (EV_P_ ev_periodic *w)	2416	ev_periodic_stop (EV_P_ ev_periodic *w)
2215	{	2417	{
…		…
2220	EV_FREQUENT_CHECK;	2422	EV_FREQUENT_CHECK;
2221		2423
2222	{	2424	{
2223	int active = ev_active (w);	2425	int active = ev_active (w);
2224		2426
2225	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2427	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2226		2428
2227	--periodiccnt;	2429	--periodiccnt;
2228		2430
2229	if (expect_true (active < periodiccnt + HEAP0))	2431	if (expect_true (active < periodiccnt + HEAP0))
2230	{	2432	{
…		…
2253		2455
2254	void noinline	2456	void noinline
2255	ev_signal_start (EV_P_ ev_signal *w)	2457	ev_signal_start (EV_P_ ev_signal *w)
2256	{	2458	{
2257	#if EV_MULTIPLICITY	2459	#if EV_MULTIPLICITY
2258	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));
2259	#endif	2461	#endif
2260	if (expect_false (ev_is_active (w)))	2462	if (expect_false (ev_is_active (w)))
2261	return;	2463	return;
2262		2464
2263	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));
2264		2466
2265	evpipe_init (EV_A);	2467	evpipe_init (EV_A);
2266		2468
2267	EV_FREQUENT_CHECK;	2469	EV_FREQUENT_CHECK;
2268		2470
…		…
2271	sigset_t full, prev;	2473	sigset_t full, prev;
2272	sigfillset (&full);	2474	sigfillset (&full);
2273	sigprocmask (SIG_SETMASK, &full, &prev);	2475	sigprocmask (SIG_SETMASK, &full, &prev);
2274	#endif	2476	#endif
2275		2477
2276	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2478	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2277		2479
2278	#ifndef _WIN32	2480	#ifndef _WIN32
2279	sigprocmask (SIG_SETMASK, &prev, 0);	2481	sigprocmask (SIG_SETMASK, &prev, 0);
2280	#endif	2482	#endif
2281	}	2483	}
…		…
2319		2521
2320	void	2522	void
2321	ev_child_start (EV_P_ ev_child *w)	2523	ev_child_start (EV_P_ ev_child *w)
2322	{	2524	{
2323	#if EV_MULTIPLICITY	2525	#if EV_MULTIPLICITY
2324	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));
2325	#endif	2527	#endif
2326	if (expect_false (ev_is_active (w)))	2528	if (expect_false (ev_is_active (w)))
2327	return;	2529	return;
2328		2530
2329	EV_FREQUENT_CHECK;	2531	EV_FREQUENT_CHECK;
…		…
2354	# ifdef _WIN32	2556	# ifdef _WIN32
2355	# undef lstat	2557	# undef lstat
2356	# define lstat(a,b) _stati64 (a,b)	2558	# define lstat(a,b) _stati64 (a,b)
2357	# endif	2559	# endif
2358		2560
2359	#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 */
2360	#define MIN_STAT_INTERVAL 0.1074891	2563	#define MIN_STAT_INTERVAL 0.1074891
2361		2564
2362	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);
2363		2566
2364	#if EV_USE_INOTIFY	2567	#if EV_USE_INOTIFY
2365	# define EV_INOTIFY_BUFSIZE 8192	2568	# define EV_INOTIFY_BUFSIZE 8192
…		…
2369	{	2572	{
2370	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);
2371		2574
2372	if (w->wd < 0)	2575	if (w->wd < 0)
2373	{	2576	{
		2577	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2374	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 */
2375		2579
2376	/* monitor some parent directory for speedup hints */	2580	/* monitor some parent directory for speedup hints */
2377	/* note that exceeding the hardcoded limit is not a correctness issue, */	2581	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2378	/* but an efficiency issue only */	2582	/* but an efficiency issue only */
2379	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2583	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2380	{	2584	{
2381	char path [4096];	2585	char path [4096];
2382	strcpy (path, w->path);	2586	strcpy (path, w->path);
…		…
2386	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2590	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2387	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2591	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2388		2592
2389	char *pend = strrchr (path, '/');	2593	char *pend = strrchr (path, '/');
2390		2594
2391	if (!pend)	2595	if (!pend || pend == path)
2392	break; /* whoops, no '/', complain to your admin */	2596	break;
2393		2597
2394	*pend = 0;	2598	*pend = 0;
2395	w->wd = inotify_add_watch (fs_fd, path, mask);	2599	w->wd = inotify_add_watch (fs_fd, path, mask);
2396	}	2600	}
2397	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2601	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2398	}	2602	}
2399	}	2603	}
2400	else
2401	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2402		2604
2403	if (w->wd >= 0)	2605	if (w->wd >= 0)
		2606	{
2404	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	}
2405	}	2626	}
2406		2627
2407	static void noinline	2628	static void noinline
2408	infy_del (EV_P_ ev_stat *w)	2629	infy_del (EV_P_ ev_stat *w)
2409	{	2630	{
…		…
2423		2644
2424	static void noinline	2645	static void noinline
2425	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)
2426	{	2647	{
2427	if (slot < 0)	2648	if (slot < 0)
2428	/* overflow, need to check for all hahs slots */	2649	/* overflow, need to check for all hash slots */
2429	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2650	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2430	infy_wd (EV_A_ slot, wd, ev);	2651	infy_wd (EV_A_ slot, wd, ev);
2431	else	2652	else
2432	{	2653	{
2433	WL w_;	2654	WL w_;
…		…
2439		2660
2440	if (w->wd == wd || wd == -1)	2661	if (w->wd == wd || wd == -1)
2441	{	2662	{
2442	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2663	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2443	{	2664	{
		2665	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2444	w->wd = -1;	2666	w->wd = -1;
2445	infy_add (EV_A_ w); /* re-add, no matter what */	2667	infy_add (EV_A_ w); /* re-add, no matter what */
2446	}	2668	}
2447		2669
2448	stat_timer_cb (EV_A_ &w->timer, 0);	2670	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2461		2683
2462	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)
2463	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2685	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2464	}	2686	}
2465		2687
2466	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
2467	infy_init (EV_P)	2712	infy_init (EV_P)
2468	{	2713	{
2469	if (fs_fd != -2)	2714	if (fs_fd != -2)
2470	return;	2715	return;
		2716
		2717	fs_fd = -1;
		2718
		2719	check_2625 (EV_A);
2471		2720
2472	fs_fd = inotify_init ();	2721	fs_fd = inotify_init ();
2473		2722
2474	if (fs_fd >= 0)	2723	if (fs_fd >= 0)
2475	{	2724	{
…		…
2477	ev_set_priority (&fs_w, EV_MAXPRI);	2726	ev_set_priority (&fs_w, EV_MAXPRI);
2478	ev_io_start (EV_A_ &fs_w);	2727	ev_io_start (EV_A_ &fs_w);
2479	}	2728	}
2480	}	2729	}
2481		2730
2482	void inline_size	2731	inline_size void
2483	infy_fork (EV_P)	2732	infy_fork (EV_P)
2484	{	2733	{
2485	int slot;	2734	int slot;
2486		2735
2487	if (fs_fd < 0)	2736	if (fs_fd < 0)
…		…
2503	w->wd = -1;	2752	w->wd = -1;
2504		2753
2505	if (fs_fd >= 0)	2754	if (fs_fd >= 0)
2506	infy_add (EV_A_ w); /* re-add, no matter what */	2755	infy_add (EV_A_ w); /* re-add, no matter what */
2507	else	2756	else
2508	ev_timer_start (EV_A_ &w->timer);	2757	ev_timer_again (EV_A_ &w->timer);
2509	}	2758	}
2510
2511	}	2759	}
2512	}	2760	}
2513		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)
2514	#endif	2768	#endif
2515		2769
2516	void	2770	void
2517	ev_stat_stat (EV_P_ ev_stat *w)	2771	ev_stat_stat (EV_P_ ev_stat *w)
2518	{	2772	{
…		…
2545	|| w->prev.st_atime != w->attr.st_atime	2799	|| w->prev.st_atime != w->attr.st_atime
2546	|| w->prev.st_mtime != w->attr.st_mtime	2800	|| w->prev.st_mtime != w->attr.st_mtime
2547	|| w->prev.st_ctime != w->attr.st_ctime	2801	|| w->prev.st_ctime != w->attr.st_ctime
2548	) {	2802	) {
2549	#if EV_USE_INOTIFY	2803	#if EV_USE_INOTIFY
		2804	if (fs_fd >= 0)
		2805	{
2550	infy_del (EV_A_ w);	2806	infy_del (EV_A_ w);
2551	infy_add (EV_A_ w);	2807	infy_add (EV_A_ w);
2552	ev_stat_stat (EV_A_ w); /* avoid race... */	2808	ev_stat_stat (EV_A_ w); /* avoid race... */
		2809	}
2553	#endif	2810	#endif
2554		2811
2555	ev_feed_event (EV_A_ w, EV_STAT);	2812	ev_feed_event (EV_A_ w, EV_STAT);
2556	}	2813	}
2557	}	2814	}
…		…
2560	ev_stat_start (EV_P_ ev_stat *w)	2817	ev_stat_start (EV_P_ ev_stat *w)
2561	{	2818	{
2562	if (expect_false (ev_is_active (w)))	2819	if (expect_false (ev_is_active (w)))
2563	return;	2820	return;
2564		2821
2565	/* since we use memcmp, we need to clear any padding data etc. */
2566	memset (&w->prev, 0, sizeof (ev_statdata));
2567	memset (&w->attr, 0, sizeof (ev_statdata));
2568
2569	ev_stat_stat (EV_A_ w);	2822	ev_stat_stat (EV_A_ w);
2570		2823
		2824	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2571	if (w->interval < MIN_STAT_INTERVAL)	2825	w->interval = MIN_STAT_INTERVAL;
2572	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2573		2826
2574	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);
2575	ev_set_priority (&w->timer, ev_priority (w));	2828	ev_set_priority (&w->timer, ev_priority (w));
2576		2829
2577	#if EV_USE_INOTIFY	2830	#if EV_USE_INOTIFY
2578	infy_init (EV_A);	2831	infy_init (EV_A);
2579		2832
2580	if (fs_fd >= 0)	2833	if (fs_fd >= 0)
2581	infy_add (EV_A_ w);	2834	infy_add (EV_A_ w);
2582	else	2835	else
2583	#endif	2836	#endif
2584	ev_timer_start (EV_A_ &w->timer);	2837	ev_timer_again (EV_A_ &w->timer);
2585		2838
2586	ev_start (EV_A_ (W)w, 1);	2839	ev_start (EV_A_ (W)w, 1);
2587		2840
2588	EV_FREQUENT_CHECK;	2841	EV_FREQUENT_CHECK;
2589	}	2842	}
…		…
2759	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3012	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2760	}	3013	}
2761	}	3014	}
2762	}	3015	}
2763		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
2764	#if 0	3034	#if 0
2765	static void	3035	static void
2766	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3036	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2767	{	3037	{
2768	ev_idle_stop (EV_A_ idle);	3038	ev_idle_stop (EV_A_ idle);
…		…
2775	if (expect_false (ev_is_active (w)))	3045	if (expect_false (ev_is_active (w)))
2776	return;	3046	return;
2777		3047
2778	{	3048	{
2779	struct ev_loop *loop = w->other;	3049	struct ev_loop *loop = w->other;
2780	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 ()));
2781	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);
2782	}	3052	}
2783		3053
2784	EV_FREQUENT_CHECK;	3054	EV_FREQUENT_CHECK;
2785		3055
…		…
2788		3058
2789	ev_prepare_init (&w->prepare, embed_prepare_cb);	3059	ev_prepare_init (&w->prepare, embed_prepare_cb);
2790	ev_set_priority (&w->prepare, EV_MINPRI);	3060	ev_set_priority (&w->prepare, EV_MINPRI);
2791	ev_prepare_start (EV_A_ &w->prepare);	3061	ev_prepare_start (EV_A_ &w->prepare);
2792		3062
		3063	ev_fork_init (&w->fork, embed_fork_cb);
		3064	ev_fork_start (EV_A_ &w->fork);
		3065
2793	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3066	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2794		3067
2795	ev_start (EV_A_ (W)w, 1);	3068	ev_start (EV_A_ (W)w, 1);
2796		3069
2797	EV_FREQUENT_CHECK;	3070	EV_FREQUENT_CHECK;
…		…
2804	if (expect_false (!ev_is_active (w)))	3077	if (expect_false (!ev_is_active (w)))
2805	return;	3078	return;
2806		3079
2807	EV_FREQUENT_CHECK;	3080	EV_FREQUENT_CHECK;
2808		3081
2809	ev_io_stop (EV_A_ &w->io);	3082	ev_io_stop (EV_A_ &w->io);
2810	ev_prepare_stop (EV_A_ &w->prepare);	3083	ev_prepare_stop (EV_A_ &w->prepare);
2811		3084	ev_fork_stop (EV_A_ &w->fork);
2812	ev_stop (EV_A_ (W)w);
2813		3085
2814	EV_FREQUENT_CHECK;	3086	EV_FREQUENT_CHECK;
2815	}	3087	}
2816	#endif	3088	#endif
2817		3089
…		…
2914	once_cb (EV_P_ struct ev_once *once, int revents)	3186	once_cb (EV_P_ struct ev_once *once, int revents)
2915	{	3187	{
2916	void (*cb)(int revents, void *arg) = once->cb;	3188	void (*cb)(int revents, void *arg) = once->cb;
2917	void *arg = once->arg;	3189	void *arg = once->arg;
2918		3190
2919	ev_io_stop (EV_A_ &once->io);	3191	ev_io_stop (EV_A_ &once->io);
2920	ev_timer_stop (EV_A_ &once->to);	3192	ev_timer_stop (EV_A_ &once->to);
2921	ev_free (once);	3193	ev_free (once);
2922		3194
2923	cb (revents, arg);	3195	cb (revents, arg);
2924	}	3196	}
2925		3197
2926	static void	3198	static void
2927	once_cb_io (EV_P_ ev_io *w, int revents)	3199	once_cb_io (EV_P_ ev_io *w, int revents)
2928	{	3200	{
2929	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));
2930	}	3204	}
2931		3205
2932	static void	3206	static void
2933	once_cb_to (EV_P_ ev_timer *w, int revents)	3207	once_cb_to (EV_P_ ev_timer *w, int revents)
2934	{	3208	{
2935	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));
2936	}	3212	}
2937		3213
2938	void	3214	void
2939	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)
2940	{	3216	{
…		…
2962	ev_timer_set (&once->to, timeout, 0.);	3238	ev_timer_set (&once->to, timeout, 0.);
2963	ev_timer_start (EV_A_ &once->to);	3239	ev_timer_start (EV_A_ &once->to);
2964	}	3240	}
2965	}	3241	}
2966		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
2967	#if EV_MULTIPLICITY	3351	#if EV_MULTIPLICITY
2968	#include "ev_wrap.h"	3352	#include "ev_wrap.h"
2969	#endif	3353	#endif
2970		3354
2971	#ifdef __cplusplus	3355	#ifdef __cplusplus

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