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Comparing libev/ev.c (file contents):
Revision 1.240 by root, Thu May 8 21:21:41 2008 UTC vs.
Revision 1.282 by root, Sat Mar 28 22:17:17 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
		279	#ifndef EV_USE_4HEAP
		280	# define EV_USE_4HEAP !EV_MINIMAL
		281	#endif
		282
		283	#ifndef EV_HEAP_CACHE_AT
		284	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		285	#endif
		286
240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241		288
242	#ifndef CLOCK_MONOTONIC	289	#ifndef CLOCK_MONOTONIC
243	# undef EV_USE_MONOTONIC	290	# undef EV_USE_MONOTONIC
244	# define EV_USE_MONOTONIC 0	291	# define EV_USE_MONOTONIC 0
…		…
259	# include <sys/select.h>	306	# include <sys/select.h>
260	# endif	307	# endif
261	#endif	308	#endif
262		309
263	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
264	# 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
265	#endif	319	#endif
266		320
267	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
268	# 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
269	#endif	332	#endif
270		333
271	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
272	/* 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 */
273	# include <stdint.h>	336	# include <stdint.h>
…		…
279	}	342	}
280	# endif	343	# endif
281	#endif	344	#endif
282		345
283	/**/	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
284		353
285	/*	354	/*
286	* This is used to avoid floating point rounding problems.	355	* This is used to avoid floating point rounding problems.
287	* It is added to ev_rt_now when scheduling periodics	356	* It is added to ev_rt_now when scheduling periodics
288	* to ensure progress, time-wise, even when rounding	357	* to ensure progress, time-wise, even when rounding
…		…
328	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
329		398
330	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
331	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
332		401
333	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
334	/* 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 */
335	/* 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
336	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? */
337	#endif	410	#endif
338		411
339	#ifdef _WIN32	412	#ifdef _WIN32
340	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
349	{	422	{
350	syserr_cb = cb;	423	syserr_cb = cb;
351	}	424	}
352		425
353	static void noinline	426	static void noinline
354	syserr (const char *msg)	427	ev_syserr (const char *msg)
355	{	428	{
356	if (!msg)	429	if (!msg)
357	msg = "(libev) system error";	430	msg = "(libev) system error";
358		431
359	if (syserr_cb)	432	if (syserr_cb)
…		…
410	typedef struct	483	typedef struct
411	{	484	{
412	WL head;	485	WL head;
413	unsigned char events;	486	unsigned char events;
414	unsigned char reify;	487	unsigned char reify;
		488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
		489	unsigned char unused;
		490	#if EV_USE_EPOLL
		491	unsigned int egen; /* generation counter to counter epoll bugs */
		492	#endif
415	#if EV_SELECT_IS_WINSOCKET	493	#if EV_SELECT_IS_WINSOCKET
416	SOCKET handle;	494	SOCKET handle;
417	#endif	495	#endif
418	} ANFD;	496	} ANFD;
419		497
…		…
422	W w;	500	W w;
423	int events;	501	int events;
424	} ANPENDING;	502	} ANPENDING;
425		503
426	#if EV_USE_INOTIFY	504	#if EV_USE_INOTIFY
		505	/* hash table entry per inotify-id */
427	typedef struct	506	typedef struct
428	{	507	{
429	WL head;	508	WL head;
430	} ANFS;	509	} ANFS;
		510	#endif
		511
		512	/* Heap Entry */
		513	#if EV_HEAP_CACHE_AT
		514	typedef struct {
		515	ev_tstamp at;
		516	WT w;
		517	} ANHE;
		518
		519	#define ANHE_w(he) (he).w /* access watcher, read-write */
		520	#define ANHE_at(he) (he).at /* access cached at, read-only */
		521	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		522	#else
		523	typedef WT ANHE;
		524
		525	#define ANHE_w(he) (he)
		526	#define ANHE_at(he) (he)->at
		527	#define ANHE_at_cache(he)
431	#endif	528	#endif
432		529
433	#if EV_MULTIPLICITY	530	#if EV_MULTIPLICITY
434		531
435	struct ev_loop	532	struct ev_loop
…		…
460		557
461	ev_tstamp	558	ev_tstamp
462	ev_time (void)	559	ev_time (void)
463	{	560	{
464	#if EV_USE_REALTIME	561	#if EV_USE_REALTIME
		562	if (expect_true (have_realtime))
		563	{
465	struct timespec ts;	564	struct timespec ts;
466	clock_gettime (CLOCK_REALTIME, &ts);	565	clock_gettime (CLOCK_REALTIME, &ts);
467	return ts.tv_sec + ts.tv_nsec * 1e-9;	566	return ts.tv_sec + ts.tv_nsec * 1e-9;
468	#else	567	}
		568	#endif
		569
469	struct timeval tv;	570	struct timeval tv;
470	gettimeofday (&tv, 0);	571	gettimeofday (&tv, 0);
471	return tv.tv_sec + tv.tv_usec * 1e-6;	572	return tv.tv_sec + tv.tv_usec * 1e-6;
472	#endif
473	}	573	}
474		574
475	ev_tstamp inline_size	575	ev_tstamp inline_size
476	get_clock (void)	576	get_clock (void)
477	{	577	{
…		…
513	struct timeval tv;	613	struct timeval tv;
514		614
515	tv.tv_sec = (time_t)delay;	615	tv.tv_sec = (time_t)delay;
516	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
517		617
		618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		619	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		620	/* by older ones */
518	select (0, 0, 0, 0, &tv);	621	select (0, 0, 0, 0, &tv);
519	#endif	622	#endif
520	}	623	}
521	}	624	}
522		625
…		…
549	array_realloc (int elem, void *base, int *cur, int cnt)	652	array_realloc (int elem, void *base, int *cur, int cnt)
550	{	653	{
551	*cur = array_nextsize (elem, *cur, cnt);	654	*cur = array_nextsize (elem, *cur, cnt);
552	return ev_realloc (base, elem * *cur);	655	return ev_realloc (base, elem * *cur);
553	}	656	}
		657
		658	#define array_init_zero(base,count) \
		659	memset ((void *)(base), 0, sizeof (*(base)) * (count))
554		660
555	#define array_needsize(type,base,cur,cnt,init) \	661	#define array_needsize(type,base,cur,cnt,init) \
556	if (expect_false ((cnt) > (cur))) \	662	if (expect_false ((cnt) > (cur))) \
557	{ \	663	{ \
558	int ocur_ = (cur); \	664	int ocur_ = (cur); \
…		…
570	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	676	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
571	}	677	}
572	#endif	678	#endif
573		679
574	#define array_free(stem, idx) \	680	#define array_free(stem, idx) \
575	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
576		682
577	/*****************************************************************************/	683	/*****************************************************************************/
578		684
579	void noinline	685	void noinline
580	ev_feed_event (EV_P_ void *w, int revents)	686	ev_feed_event (EV_P_ void *w, int revents)
…		…
602	ev_feed_event (EV_A_ events [i], type);	708	ev_feed_event (EV_A_ events [i], type);
603	}	709	}
604		710
605	/*****************************************************************************/	711	/*****************************************************************************/
606		712
607	void inline_size
608	anfds_init (ANFD *base, int count)
609	{
610	while (count--)
611	{
612	base->head = 0;
613	base->events = EV_NONE;
614	base->reify = 0;
615
616	++base;
617	}
618	}
619
620	void inline_speed	713	void inline_speed
621	fd_event (EV_P_ int fd, int revents)	714	fd_event (EV_P_ int fd, int revents)
622	{	715	{
623	ANFD *anfd = anfds + fd;	716	ANFD *anfd = anfds + fd;
624	ev_io *w;	717	ev_io *w;
…		…
656	events |= (unsigned char)w->events;	749	events |= (unsigned char)w->events;
657		750
658	#if EV_SELECT_IS_WINSOCKET	751	#if EV_SELECT_IS_WINSOCKET
659	if (events)	752	if (events)
660	{	753	{
661	unsigned long argp;	754	unsigned long arg;
662	#ifdef EV_FD_TO_WIN32_HANDLE	755	#ifdef EV_FD_TO_WIN32_HANDLE
663	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	756	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
664	#else	757	#else
665	anfd->handle = _get_osfhandle (fd);	758	anfd->handle = _get_osfhandle (fd);
666	#endif	759	#endif
667	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	760	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
668	}	761	}
669	#endif	762	#endif
670		763
671	{	764	{
672	unsigned char o_events = anfd->events;	765	unsigned char o_events = anfd->events;
673	unsigned char o_reify = anfd->reify;	766	unsigned char o_reify = anfd->reify;
674		767
675	anfd->reify = 0;	768	anfd->reify = 0;
676	anfd->events = events;	769	anfd->events = events;
677		770
678	if (o_events != events || o_reify & EV_IOFDSET)	771	if (o_events != events || o_reify & EV__IOFDSET)
679	backend_modify (EV_A_ fd, o_events, events);	772	backend_modify (EV_A_ fd, o_events, events);
680	}	773	}
681	}	774	}
682		775
683	fdchangecnt = 0;	776	fdchangecnt = 0;
…		…
725	{	818	{
726	int fd;	819	int fd;
727		820
728	for (fd = 0; fd < anfdmax; ++fd)	821	for (fd = 0; fd < anfdmax; ++fd)
729	if (anfds [fd].events)	822	if (anfds [fd].events)
730	if (!fd_valid (fd) == -1 && errno == EBADF)	823	if (!fd_valid (fd) && errno == EBADF)
731	fd_kill (EV_A_ fd);	824	fd_kill (EV_A_ fd);
732	}	825	}
733		826
734	/* called on ENOMEM in select/poll to kill some fds and retry */	827	/* called on ENOMEM in select/poll to kill some fds and retry */
735	static void noinline	828	static void noinline
…		…
753		846
754	for (fd = 0; fd < anfdmax; ++fd)	847	for (fd = 0; fd < anfdmax; ++fd)
755	if (anfds [fd].events)	848	if (anfds [fd].events)
756	{	849	{
757	anfds [fd].events = 0;	850	anfds [fd].events = 0;
		851	anfds [fd].emask = 0;
758	fd_change (EV_A_ fd, EV_IOFDSET | 1);	852	fd_change (EV_A_ fd, EV__IOFDSET | 1);
759	}	853	}
760	}	854	}
761		855
762	/*****************************************************************************/	856	/*****************************************************************************/
		857
		858	/*
		859	* the heap functions want a real array index. array index 0 uis guaranteed to not
		860	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		861	* the branching factor of the d-tree.
		862	*/
763		863
764	/*	864	/*
765	* at the moment we allow libev the luxury of two heaps,	865	* at the moment we allow libev the luxury of two heaps,
766	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap	866	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
767	* which is more cache-efficient.	867	* which is more cache-efficient.
768	* the difference is about 5% with 50000+ watchers.	868	* the difference is about 5% with 50000+ watchers.
769	*/	869	*/
770	#define USE_4HEAP !EV_MINIMAL
771	#if USE_4HEAP	870	#if EV_USE_4HEAP
772		871
773	#define DHEAP 4	872	#define DHEAP 4
774	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	873	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
775		874	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
776	/* towards the root */	875	#define UPHEAP_DONE(p,k) ((p) == (k))
777	void inline_speed
778	upheap (WT *heap, int k)
779	{
780	WT w = heap [k];
781	ev_tstamp w_at = w->at;
782
783	for (;;)
784	{
785	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
786
787	if (p == k || heap [p]->at <= w_at)
788	break;
789
790	heap [k] = heap [p];
791	ev_active (heap [k]) = k;
792	k = p;
793	}
794
795	heap [k] = w;
796	ev_active (heap [k]) = k;
797	}
798		876
799	/* away from the root */	877	/* away from the root */
800	void inline_speed	878	void inline_speed
801	downheap (WT *heap, int N, int k)	879	downheap (ANHE *heap, int N, int k)
802	{	880	{
803	WT w = heap [k];	881	ANHE he = heap [k];
804	WT *E = heap + N + HEAP0;	882	ANHE *E = heap + N + HEAP0;
805		883
806	for (;;)	884	for (;;)
807	{	885	{
808	ev_tstamp minat;	886	ev_tstamp minat;
809	WT *minpos;	887	ANHE *minpos;
810	WT *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	888	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
811		889
812	// find minimum child	890	/* find minimum child */
813	if (expect_true (pos + DHEAP - 1 < E))	891	if (expect_true (pos + DHEAP - 1 < E))
814	{	892	{
815	/* fast path */ (minpos = pos + 0), (minat = (*minpos)->at);	893	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
816	if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at);	894	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
817	if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at);	895	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
818	if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at);	896	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
819	}	897	}
820	else if (pos < E)	898	else if (pos < E)
821	{	899	{
822	/* slow path */ (minpos = pos + 0), (minat = (*minpos)->at);	900	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
823	if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at);	901	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
824	if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at);	902	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
825	if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at);	903	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
826	}	904	}
827	else	905	else
828	break;	906	break;
829		907
830	if (w->at <= minat)	908	if (ANHE_at (he) <= minat)
831	break;	909	break;
832		910
833	ev_active (*minpos) = k;
834	heap [k] = *minpos;	911	heap [k] = *minpos;
		912	ev_active (ANHE_w (*minpos)) = k;
835		913
836	k = minpos - heap;	914	k = minpos - heap;
837	}	915	}
838		916
839	heap [k] = w;	917	heap [k] = he;
840	ev_active (heap [k]) = k;	918	ev_active (ANHE_w (he)) = k;
841	}	919	}
842		920
843	#else // 4HEAP	921	#else /* 4HEAP */
844		922
845	#define HEAP0 1	923	#define HEAP0 1
		924	#define HPARENT(k) ((k) >> 1)
		925	#define UPHEAP_DONE(p,k) (!(p))
		926
		927	/* away from the root */
		928	void inline_speed
		929	downheap (ANHE *heap, int N, int k)
		930	{
		931	ANHE he = heap [k];
		932
		933	for (;;)
		934	{
		935	int c = k << 1;
		936
		937	if (c > N + HEAP0 - 1)
		938	break;
		939
		940	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
		941	? 1 : 0;
		942
		943	if (ANHE_at (he) <= ANHE_at (heap [c]))
		944	break;
		945
		946	heap [k] = heap [c];
		947	ev_active (ANHE_w (heap [k])) = k;
		948
		949	k = c;
		950	}
		951
		952	heap [k] = he;
		953	ev_active (ANHE_w (he)) = k;
		954	}
		955	#endif
846		956
847	/* towards the root */	957	/* towards the root */
848	void inline_speed	958	void inline_speed
849	upheap (WT *heap, int k)	959	upheap (ANHE *heap, int k)
850	{	960	{
851	WT w = heap [k];	961	ANHE he = heap [k];
852		962
853	for (;;)	963	for (;;)
854	{	964	{
855	int p = k >> 1;	965	int p = HPARENT (k);
856		966
857	/* maybe we could use a dummy element at heap [0]? */	967	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
858	if (!p || heap [p]->at <= w->at)
859	break;	968	break;
860		969
861	heap [k] = heap [p];	970	heap [k] = heap [p];
862	ev_active (heap [k]) = k;	971	ev_active (ANHE_w (heap [k])) = k;
863	k = p;	972	k = p;
864	}	973	}
865		974
866	heap [k] = w;	975	heap [k] = he;
867	ev_active (heap [k]) = k;	976	ev_active (ANHE_w (he)) = k;
868	}	977	}
869
870	/* away from the root */
871	void inline_speed
872	downheap (WT *heap, int N, int k)
873	{
874	WT w = heap [k];
875
876	for (;;)
877	{
878	int c = k << 1;
879
880	if (c > N)
881	break;
882
883	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
884	? 1 : 0;
885
886	if (w->at <= heap [c]->at)
887	break;
888
889	heap [k] = heap [c];
890	((W)heap [k])->active = k;
891
892	k = c;
893	}
894
895	heap [k] = w;
896	ev_active (heap [k]) = k;
897	}
898	#endif
899		978
900	void inline_size	979	void inline_size
901	adjustheap (WT *heap, int N, int k)	980	adjustheap (ANHE *heap, int N, int k)
902	{	981	{
		982	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
903	upheap (heap, k);	983	upheap (heap, k);
		984	else
904	downheap (heap, N, k);	985	downheap (heap, N, k);
		986	}
		987
		988	/* rebuild the heap: this function is used only once and executed rarely */
		989	void inline_size
		990	reheap (ANHE *heap, int N)
		991	{
		992	int i;
		993
		994	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		995	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		996	for (i = 0; i < N; ++i)
		997	upheap (heap, i + HEAP0);
905	}	998	}
906		999
907	/*****************************************************************************/	1000	/*****************************************************************************/
908		1001
909	typedef struct	1002	typedef struct
…		…
915	static ANSIG *signals;	1008	static ANSIG *signals;
916	static int signalmax;	1009	static int signalmax;
917		1010
918	static EV_ATOMIC_T gotsig;	1011	static EV_ATOMIC_T gotsig;
919		1012
920	void inline_size
921	signals_init (ANSIG *base, int count)
922	{
923	while (count--)
924	{
925	base->head = 0;
926	base->gotsig = 0;
927
928	++base;
929	}
930	}
931
932	/*****************************************************************************/	1013	/*****************************************************************************/
933		1014
934	void inline_speed	1015	void inline_speed
935	fd_intern (int fd)	1016	fd_intern (int fd)
936	{	1017	{
937	#ifdef _WIN32	1018	#ifdef _WIN32
938	int arg = 1;	1019	unsigned long arg = 1;
939	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1020	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
940	#else	1021	#else
941	fcntl (fd, F_SETFD, FD_CLOEXEC);	1022	fcntl (fd, F_SETFD, FD_CLOEXEC);
942	fcntl (fd, F_SETFL, O_NONBLOCK);	1023	fcntl (fd, F_SETFL, O_NONBLOCK);
943	#endif	1024	#endif
…		…
957	}	1038	}
958	else	1039	else
959	#endif	1040	#endif
960	{	1041	{
961	while (pipe (evpipe))	1042	while (pipe (evpipe))
962	syserr ("(libev) error creating signal/async pipe");	1043	ev_syserr ("(libev) error creating signal/async pipe");
963		1044
964	fd_intern (evpipe [0]);	1045	fd_intern (evpipe [0]);
965	fd_intern (evpipe [1]);	1046	fd_intern (evpipe [1]);
966	ev_io_set (&pipeev, evpipe [0], EV_READ);	1047	ev_io_set (&pipeev, evpipe [0], EV_READ);
967	}	1048	}
…		…
1057	ev_feed_signal_event (EV_P_ int signum)	1138	ev_feed_signal_event (EV_P_ int signum)
1058	{	1139	{
1059	WL w;	1140	WL w;
1060		1141
1061	#if EV_MULTIPLICITY	1142	#if EV_MULTIPLICITY
1062	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1143	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1063	#endif	1144	#endif
1064		1145
1065	--signum;	1146	--signum;
1066		1147
1067	if (signum < 0 || signum >= signalmax)	1148	if (signum < 0 || signum >= signalmax)
…		…
1196	/* kqueue is borked on everything but netbsd apparently */	1277	/* kqueue is borked on everything but netbsd apparently */
1197	/* it usually doesn't work correctly on anything but sockets and pipes */	1278	/* it usually doesn't work correctly on anything but sockets and pipes */
1198	flags &= ~EVBACKEND_KQUEUE;	1279	flags &= ~EVBACKEND_KQUEUE;
1199	#endif	1280	#endif
1200	#ifdef __APPLE__	1281	#ifdef __APPLE__
1201	// flags &= ~EVBACKEND_KQUEUE; for documentation	1282	/* only select works correctly on that "unix-certified" platform */
1202	flags &= ~EVBACKEND_POLL;	1283	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1284	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1203	#endif	1285	#endif
1204		1286
1205	return flags;	1287	return flags;
1206	}	1288	}
1207		1289
…		…
1244	static void noinline	1326	static void noinline
1245	loop_init (EV_P_ unsigned int flags)	1327	loop_init (EV_P_ unsigned int flags)
1246	{	1328	{
1247	if (!backend)	1329	if (!backend)
1248	{	1330	{
		1331	#if EV_USE_REALTIME
		1332	if (!have_realtime)
		1333	{
		1334	struct timespec ts;
		1335
		1336	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1337	have_realtime = 1;
		1338	}
		1339	#endif
		1340
1249	#if EV_USE_MONOTONIC	1341	#if EV_USE_MONOTONIC
		1342	if (!have_monotonic)
1250	{	1343	{
1251	struct timespec ts;	1344	struct timespec ts;
		1345
1252	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1346	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1253	have_monotonic = 1;	1347	have_monotonic = 1;
1254	}	1348	}
1255	#endif	1349	#endif
1256		1350
1257	ev_rt_now = ev_time ();	1351	ev_rt_now = ev_time ();
1258	mn_now = get_clock ();	1352	mn_now = get_clock ();
1259	now_floor = mn_now;	1353	now_floor = mn_now;
…		…
1427		1521
1428	postfork = 0;	1522	postfork = 0;
1429	}	1523	}
1430		1524
1431	#if EV_MULTIPLICITY	1525	#if EV_MULTIPLICITY
		1526
1432	struct ev_loop *	1527	struct ev_loop *
1433	ev_loop_new (unsigned int flags)	1528	ev_loop_new (unsigned int flags)
1434	{	1529	{
1435	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1530	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1436		1531
…		…
1454	void	1549	void
1455	ev_loop_fork (EV_P)	1550	ev_loop_fork (EV_P)
1456	{	1551	{
1457	postfork = 1; /* must be in line with ev_default_fork */	1552	postfork = 1; /* must be in line with ev_default_fork */
1458	}	1553	}
		1554
		1555	#if EV_VERIFY
		1556	static void noinline
		1557	verify_watcher (EV_P_ W w)
		1558	{
		1559	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1560
		1561	if (w->pending)
		1562	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1563	}
		1564
		1565	static void noinline
		1566	verify_heap (EV_P_ ANHE *heap, int N)
		1567	{
		1568	int i;
		1569
		1570	for (i = HEAP0; i < N + HEAP0; ++i)
		1571	{
		1572	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1573	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1574	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1575
		1576	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1577	}
		1578	}
		1579
		1580	static void noinline
		1581	array_verify (EV_P_ W *ws, int cnt)
		1582	{
		1583	while (cnt--)
		1584	{
		1585	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1586	verify_watcher (EV_A_ ws [cnt]);
		1587	}
		1588	}
		1589	#endif
		1590
		1591	void
		1592	ev_loop_verify (EV_P)
		1593	{
		1594	#if EV_VERIFY
		1595	int i;
		1596	WL w;
		1597
		1598	assert (activecnt >= -1);
		1599
		1600	assert (fdchangemax >= fdchangecnt);
		1601	for (i = 0; i < fdchangecnt; ++i)
		1602	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1603
		1604	assert (anfdmax >= 0);
		1605	for (i = 0; i < anfdmax; ++i)
		1606	for (w = anfds [i].head; w; w = w->next)
		1607	{
		1608	verify_watcher (EV_A_ (W)w);
		1609	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1610	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1611	}
		1612
		1613	assert (timermax >= timercnt);
		1614	verify_heap (EV_A_ timers, timercnt);
		1615
		1616	#if EV_PERIODIC_ENABLE
		1617	assert (periodicmax >= periodiccnt);
		1618	verify_heap (EV_A_ periodics, periodiccnt);
		1619	#endif
		1620
		1621	for (i = NUMPRI; i--; )
		1622	{
		1623	assert (pendingmax [i] >= pendingcnt [i]);
		1624	#if EV_IDLE_ENABLE
		1625	assert (idleall >= 0);
		1626	assert (idlemax [i] >= idlecnt [i]);
		1627	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1628	#endif
		1629	}
		1630
		1631	#if EV_FORK_ENABLE
		1632	assert (forkmax >= forkcnt);
		1633	array_verify (EV_A_ (W *)forks, forkcnt);
		1634	#endif
		1635
		1636	#if EV_ASYNC_ENABLE
		1637	assert (asyncmax >= asynccnt);
		1638	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1639	#endif
		1640
		1641	assert (preparemax >= preparecnt);
		1642	array_verify (EV_A_ (W *)prepares, preparecnt);
		1643
		1644	assert (checkmax >= checkcnt);
		1645	array_verify (EV_A_ (W *)checks, checkcnt);
		1646
		1647	# if 0
		1648	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1649	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1459	#endif	1650	# endif
		1651	#endif
		1652	}
		1653
		1654	#endif /* multiplicity */
1460		1655
1461	#if EV_MULTIPLICITY	1656	#if EV_MULTIPLICITY
1462	struct ev_loop *	1657	struct ev_loop *
1463	ev_default_loop_init (unsigned int flags)	1658	ev_default_loop_init (unsigned int flags)
1464	#else	1659	#else
…		…
1497	{	1692	{
1498	#if EV_MULTIPLICITY	1693	#if EV_MULTIPLICITY
1499	struct ev_loop *loop = ev_default_loop_ptr;	1694	struct ev_loop *loop = ev_default_loop_ptr;
1500	#endif	1695	#endif
1501		1696
		1697	ev_default_loop_ptr = 0;
		1698
1502	#ifndef _WIN32	1699	#ifndef _WIN32
1503	ev_ref (EV_A); /* child watcher */	1700	ev_ref (EV_A); /* child watcher */
1504	ev_signal_stop (EV_A_ &childev);	1701	ev_signal_stop (EV_A_ &childev);
1505	#endif	1702	#endif
1506		1703
…		…
1512	{	1709	{
1513	#if EV_MULTIPLICITY	1710	#if EV_MULTIPLICITY
1514	struct ev_loop *loop = ev_default_loop_ptr;	1711	struct ev_loop *loop = ev_default_loop_ptr;
1515	#endif	1712	#endif
1516		1713
1517	if (backend)
1518	postfork = 1; /* must be in line with ev_loop_fork */	1714	postfork = 1; /* must be in line with ev_loop_fork */
1519	}	1715	}
1520		1716
1521	/*****************************************************************************/	1717	/*****************************************************************************/
1522		1718
1523	void	1719	void
…		…
1536	{	1732	{
1537	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1733	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1538		1734
1539	if (expect_true (p->w))	1735	if (expect_true (p->w))
1540	{	1736	{
1541	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1737	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1542		1738
1543	p->w->pending = 0;	1739	p->w->pending = 0;
1544	EV_CB_INVOKE (p->w, p->events);	1740	EV_CB_INVOKE (p->w, p->events);
		1741	EV_FREQUENT_CHECK;
1545	}	1742	}
1546	}	1743	}
1547	}	1744	}
1548		1745
1549	#if EV_IDLE_ENABLE	1746	#if EV_IDLE_ENABLE
…		…
1570	#endif	1767	#endif
1571		1768
1572	void inline_size	1769	void inline_size
1573	timers_reify (EV_P)	1770	timers_reify (EV_P)
1574	{	1771	{
		1772	EV_FREQUENT_CHECK;
		1773
1575	while (timercnt && ev_at (timers [HEAP0]) <= mn_now)	1774	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1576	{	1775	{
1577	ev_timer *w = (ev_timer *)timers [HEAP0];	1776	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1578		1777
1579	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1778	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1580		1779
1581	/* first reschedule or stop timer */	1780	/* first reschedule or stop timer */
1582	if (w->repeat)	1781	if (w->repeat)
1583	{	1782	{
1584	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1585
1586	ev_at (w) += w->repeat;	1783	ev_at (w) += w->repeat;
1587	if (ev_at (w) < mn_now)	1784	if (ev_at (w) < mn_now)
1588	ev_at (w) = mn_now;	1785	ev_at (w) = mn_now;
1589		1786
		1787	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1788
		1789	ANHE_at_cache (timers [HEAP0]);
1590	downheap (timers, timercnt, HEAP0);	1790	downheap (timers, timercnt, HEAP0);
1591	}	1791	}
1592	else	1792	else
1593	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1793	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1594		1794
		1795	EV_FREQUENT_CHECK;
1595	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1796	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1596	}	1797	}
1597	}	1798	}
1598		1799
1599	#if EV_PERIODIC_ENABLE	1800	#if EV_PERIODIC_ENABLE
1600	void inline_size	1801	void inline_size
1601	periodics_reify (EV_P)	1802	periodics_reify (EV_P)
1602	{	1803	{
		1804	EV_FREQUENT_CHECK;
		1805
1603	while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now)	1806	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1604	{	1807	{
1605	ev_periodic *w = (ev_periodic *)periodics [HEAP0];	1808	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1606		1809
1607	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1810	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
1608		1811
1609	/* first reschedule or stop timer */	1812	/* first reschedule or stop timer */
1610	if (w->reschedule_cb)	1813	if (w->reschedule_cb)
1611	{	1814	{
1612	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1815	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1816
1613	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));	1817	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1818
		1819	ANHE_at_cache (periodics [HEAP0]);
1614	downheap (periodics, periodiccnt, 1);	1820	downheap (periodics, periodiccnt, HEAP0);
1615	}	1821	}
1616	else if (w->interval)	1822	else if (w->interval)
1617	{	1823	{
1618	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1824	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1825	/* if next trigger time is not sufficiently in the future, put it there */
		1826	/* this might happen because of floating point inexactness */
1619	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;	1827	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1620	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));	1828	{
		1829	ev_at (w) += w->interval;
		1830
		1831	/* if interval is unreasonably low we might still have a time in the past */
		1832	/* so correct this. this will make the periodic very inexact, but the user */
		1833	/* has effectively asked to get triggered more often than possible */
		1834	if (ev_at (w) < ev_rt_now)
		1835	ev_at (w) = ev_rt_now;
		1836	}
		1837
		1838	ANHE_at_cache (periodics [HEAP0]);
1621	downheap (periodics, periodiccnt, HEAP0);	1839	downheap (periodics, periodiccnt, HEAP0);
1622	}	1840	}
1623	else	1841	else
1624	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1842	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1625		1843
		1844	EV_FREQUENT_CHECK;
1626	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1845	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1627	}	1846	}
1628	}	1847	}
1629		1848
1630	static void noinline	1849	static void noinline
1631	periodics_reschedule (EV_P)	1850	periodics_reschedule (EV_P)
1632	{	1851	{
1633	int i;	1852	int i;
1634		1853
1635	/* adjust periodics after time jump */	1854	/* adjust periodics after time jump */
1636	for (i = 1; i <= periodiccnt; ++i)	1855	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
1637	{	1856	{
1638	ev_periodic *w = (ev_periodic *)periodics [i];	1857	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1639		1858
1640	if (w->reschedule_cb)	1859	if (w->reschedule_cb)
1641	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1860	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1642	else if (w->interval)	1861	else if (w->interval)
1643	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1862	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1644	}
1645		1863
1646	/* now rebuild the heap */	1864	ANHE_at_cache (periodics [i]);
1647	for (i = periodiccnt >> 1; --i; )	1865	}
		1866
1648	downheap (periodics, periodiccnt, i + HEAP0);	1867	reheap (periodics, periodiccnt);
1649	}	1868	}
1650	#endif	1869	#endif
1651		1870
1652	void inline_speed	1871	void inline_speed
1653	time_update (EV_P_ ev_tstamp max_block)	1872	time_update (EV_P_ ev_tstamp max_block)
…		…
1707	{	1926	{
1708	#if EV_PERIODIC_ENABLE	1927	#if EV_PERIODIC_ENABLE
1709	periodics_reschedule (EV_A);	1928	periodics_reschedule (EV_A);
1710	#endif	1929	#endif
1711	/* adjust timers. this is easy, as the offset is the same for all of them */	1930	/* adjust timers. this is easy, as the offset is the same for all of them */
1712	for (i = 1; i <= timercnt; ++i)	1931	for (i = 0; i < timercnt; ++i)
1713	ev_at (timers [i]) += ev_rt_now - mn_now;	1932	{
		1933	ANHE *he = timers + i + HEAP0;
		1934	ANHE_w (*he)->at += ev_rt_now - mn_now;
		1935	ANHE_at_cache (*he);
		1936	}
1714	}	1937	}
1715		1938
1716	mn_now = ev_rt_now;	1939	mn_now = ev_rt_now;
1717	}	1940	}
1718	}	1941	}
…		…
1727	ev_unref (EV_P)	1950	ev_unref (EV_P)
1728	{	1951	{
1729	--activecnt;	1952	--activecnt;
1730	}	1953	}
1731		1954
		1955	void
		1956	ev_now_update (EV_P)
		1957	{
		1958	time_update (EV_A_ 1e100);
		1959	}
		1960
1732	static int loop_done;	1961	static int loop_done;
1733		1962
1734	void	1963	void
1735	ev_loop (EV_P_ int flags)	1964	ev_loop (EV_P_ int flags)
1736	{	1965	{
…		…
1738		1967
1739	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1968	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1740		1969
1741	do	1970	do
1742	{	1971	{
		1972	#if EV_VERIFY >= 2
		1973	ev_loop_verify (EV_A);
		1974	#endif
		1975
1743	#ifndef _WIN32	1976	#ifndef _WIN32
1744	if (expect_false (curpid)) /* penalise the forking check even more */	1977	if (expect_false (curpid)) /* penalise the forking check even more */
1745	if (expect_false (getpid () != curpid))	1978	if (expect_false (getpid () != curpid))
1746	{	1979	{
1747	curpid = getpid ();	1980	curpid = getpid ();
…		…
1788		2021
1789	waittime = MAX_BLOCKTIME;	2022	waittime = MAX_BLOCKTIME;
1790		2023
1791	if (timercnt)	2024	if (timercnt)
1792	{	2025	{
1793	ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge;	2026	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1794	if (waittime > to) waittime = to;	2027	if (waittime > to) waittime = to;
1795	}	2028	}
1796		2029
1797	#if EV_PERIODIC_ENABLE	2030	#if EV_PERIODIC_ENABLE
1798	if (periodiccnt)	2031	if (periodiccnt)
1799	{	2032	{
1800	ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2033	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1801	if (waittime > to) waittime = to;	2034	if (waittime > to) waittime = to;
1802	}	2035	}
1803	#endif	2036	#endif
1804		2037
1805	if (expect_false (waittime < timeout_blocktime))	2038	if (expect_false (waittime < timeout_blocktime))
…		…
1940	int fd = w->fd;	2173	int fd = w->fd;
1941		2174
1942	if (expect_false (ev_is_active (w)))	2175	if (expect_false (ev_is_active (w)))
1943	return;	2176	return;
1944		2177
1945	assert (("ev_io_start called with negative fd", fd >= 0));	2178	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2179	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
		2180
		2181	EV_FREQUENT_CHECK;
1946		2182
1947	ev_start (EV_A_ (W)w, 1);	2183	ev_start (EV_A_ (W)w, 1);
1948	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2184	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1949	wlist_add (&anfds[fd].head, (WL)w);	2185	wlist_add (&anfds[fd].head, (WL)w);
1950		2186
1951	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2187	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
1952	w->events &= ~EV_IOFDSET;	2188	w->events &= ~EV__IOFDSET;
		2189
		2190	EV_FREQUENT_CHECK;
1953	}	2191	}
1954		2192
1955	void noinline	2193	void noinline
1956	ev_io_stop (EV_P_ ev_io *w)	2194	ev_io_stop (EV_P_ ev_io *w)
1957	{	2195	{
1958	clear_pending (EV_A_ (W)w);	2196	clear_pending (EV_A_ (W)w);
1959	if (expect_false (!ev_is_active (w)))	2197	if (expect_false (!ev_is_active (w)))
1960	return;	2198	return;
1961		2199
1962	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2200	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2201
		2202	EV_FREQUENT_CHECK;
1963		2203
1964	wlist_del (&anfds[w->fd].head, (WL)w);	2204	wlist_del (&anfds[w->fd].head, (WL)w);
1965	ev_stop (EV_A_ (W)w);	2205	ev_stop (EV_A_ (W)w);
1966		2206
1967	fd_change (EV_A_ w->fd, 1);	2207	fd_change (EV_A_ w->fd, 1);
		2208
		2209	EV_FREQUENT_CHECK;
1968	}	2210	}
1969		2211
1970	void noinline	2212	void noinline
1971	ev_timer_start (EV_P_ ev_timer *w)	2213	ev_timer_start (EV_P_ ev_timer *w)
1972	{	2214	{
1973	if (expect_false (ev_is_active (w)))	2215	if (expect_false (ev_is_active (w)))
1974	return;	2216	return;
1975		2217
1976	ev_at (w) += mn_now;	2218	ev_at (w) += mn_now;
1977		2219
1978	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2220	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1979		2221
		2222	EV_FREQUENT_CHECK;
		2223
		2224	++timercnt;
1980	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2225	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1981	array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2);	2226	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1982	timers [ev_active (w)] = (WT)w;	2227	ANHE_w (timers [ev_active (w)]) = (WT)w;
		2228	ANHE_at_cache (timers [ev_active (w)]);
1983	upheap (timers, ev_active (w));	2229	upheap (timers, ev_active (w));
1984		2230
		2231	EV_FREQUENT_CHECK;
		2232
1985	/*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/	2233	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1986	}	2234	}
1987		2235
1988	void noinline	2236	void noinline
1989	ev_timer_stop (EV_P_ ev_timer *w)	2237	ev_timer_stop (EV_P_ ev_timer *w)
1990	{	2238	{
1991	clear_pending (EV_A_ (W)w);	2239	clear_pending (EV_A_ (W)w);
1992	if (expect_false (!ev_is_active (w)))	2240	if (expect_false (!ev_is_active (w)))
1993	return;	2241	return;
1994		2242
		2243	EV_FREQUENT_CHECK;
		2244
1995	{	2245	{
1996	int active = ev_active (w);	2246	int active = ev_active (w);
1997		2247
1998	assert (("internal timer heap corruption", timers [active] == (WT)w));	2248	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
1999		2249
		2250	--timercnt;
		2251
2000	if (expect_true (active < timercnt + HEAP0 - 1))	2252	if (expect_true (active < timercnt + HEAP0))
2001	{	2253	{
2002	timers [active] = timers [timercnt + HEAP0 - 1];	2254	timers [active] = timers [timercnt + HEAP0];
2003	adjustheap (timers, timercnt, active);	2255	adjustheap (timers, timercnt, active);
2004	}	2256	}
2005
2006	--timercnt;
2007	}	2257	}
		2258
		2259	EV_FREQUENT_CHECK;
2008		2260
2009	ev_at (w) -= mn_now;	2261	ev_at (w) -= mn_now;
2010		2262
2011	ev_stop (EV_A_ (W)w);	2263	ev_stop (EV_A_ (W)w);
2012	}	2264	}
2013		2265
2014	void noinline	2266	void noinline
2015	ev_timer_again (EV_P_ ev_timer *w)	2267	ev_timer_again (EV_P_ ev_timer *w)
2016	{	2268	{
		2269	EV_FREQUENT_CHECK;
		2270
2017	if (ev_is_active (w))	2271	if (ev_is_active (w))
2018	{	2272	{
2019	if (w->repeat)	2273	if (w->repeat)
2020	{	2274	{
2021	ev_at (w) = mn_now + w->repeat;	2275	ev_at (w) = mn_now + w->repeat;
		2276	ANHE_at_cache (timers [ev_active (w)]);
2022	adjustheap (timers, timercnt, ev_active (w));	2277	adjustheap (timers, timercnt, ev_active (w));
2023	}	2278	}
2024	else	2279	else
2025	ev_timer_stop (EV_A_ w);	2280	ev_timer_stop (EV_A_ w);
2026	}	2281	}
2027	else if (w->repeat)	2282	else if (w->repeat)
2028	{	2283	{
2029	ev_at (w) = w->repeat;	2284	ev_at (w) = w->repeat;
2030	ev_timer_start (EV_A_ w);	2285	ev_timer_start (EV_A_ w);
2031	}	2286	}
		2287
		2288	EV_FREQUENT_CHECK;
2032	}	2289	}
2033		2290
2034	#if EV_PERIODIC_ENABLE	2291	#if EV_PERIODIC_ENABLE
2035	void noinline	2292	void noinline
2036	ev_periodic_start (EV_P_ ev_periodic *w)	2293	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2040		2297
2041	if (w->reschedule_cb)	2298	if (w->reschedule_cb)
2042	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2299	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2043	else if (w->interval)	2300	else if (w->interval)
2044	{	2301	{
2045	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2302	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2046	/* this formula differs from the one in periodic_reify because we do not always round up */	2303	/* this formula differs from the one in periodic_reify because we do not always round up */
2047	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2304	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2048	}	2305	}
2049	else	2306	else
2050	ev_at (w) = w->offset;	2307	ev_at (w) = w->offset;
2051		2308
		2309	EV_FREQUENT_CHECK;
		2310
		2311	++periodiccnt;
2052	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2312	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2053	array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2);	2313	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2054	periodics [ev_active (w)] = (WT)w;	2314	ANHE_w (periodics [ev_active (w)]) = (WT)w;
		2315	ANHE_at_cache (periodics [ev_active (w)]);
2055	upheap (periodics, ev_active (w));	2316	upheap (periodics, ev_active (w));
2056		2317
		2318	EV_FREQUENT_CHECK;
		2319
2057	/*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/	2320	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2058	}	2321	}
2059		2322
2060	void noinline	2323	void noinline
2061	ev_periodic_stop (EV_P_ ev_periodic *w)	2324	ev_periodic_stop (EV_P_ ev_periodic *w)
2062	{	2325	{
2063	clear_pending (EV_A_ (W)w);	2326	clear_pending (EV_A_ (W)w);
2064	if (expect_false (!ev_is_active (w)))	2327	if (expect_false (!ev_is_active (w)))
2065	return;	2328	return;
2066		2329
		2330	EV_FREQUENT_CHECK;
		2331
2067	{	2332	{
2068	int active = ev_active (w);	2333	int active = ev_active (w);
2069		2334
2070	assert (("internal periodic heap corruption", periodics [active] == (WT)w));	2335	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2071		2336
		2337	--periodiccnt;
		2338
2072	if (expect_true (active < periodiccnt + HEAP0 - 1))	2339	if (expect_true (active < periodiccnt + HEAP0))
2073	{	2340	{
2074	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2341	periodics [active] = periodics [periodiccnt + HEAP0];
2075	adjustheap (periodics, periodiccnt, active);	2342	adjustheap (periodics, periodiccnt, active);
2076	}	2343	}
2077
2078	--periodiccnt;
2079	}	2344	}
		2345
		2346	EV_FREQUENT_CHECK;
2080		2347
2081	ev_stop (EV_A_ (W)w);	2348	ev_stop (EV_A_ (W)w);
2082	}	2349	}
2083		2350
2084	void noinline	2351	void noinline
…		…
2096		2363
2097	void noinline	2364	void noinline
2098	ev_signal_start (EV_P_ ev_signal *w)	2365	ev_signal_start (EV_P_ ev_signal *w)
2099	{	2366	{
2100	#if EV_MULTIPLICITY	2367	#if EV_MULTIPLICITY
2101	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2368	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2102	#endif	2369	#endif
2103	if (expect_false (ev_is_active (w)))	2370	if (expect_false (ev_is_active (w)))
2104	return;	2371	return;
2105		2372
2106	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2373	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2107		2374
2108	evpipe_init (EV_A);	2375	evpipe_init (EV_A);
		2376
		2377	EV_FREQUENT_CHECK;
2109		2378
2110	{	2379	{
2111	#ifndef _WIN32	2380	#ifndef _WIN32
2112	sigset_t full, prev;	2381	sigset_t full, prev;
2113	sigfillset (&full);	2382	sigfillset (&full);
2114	sigprocmask (SIG_SETMASK, &full, &prev);	2383	sigprocmask (SIG_SETMASK, &full, &prev);
2115	#endif	2384	#endif
2116		2385
2117	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2386	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2118		2387
2119	#ifndef _WIN32	2388	#ifndef _WIN32
2120	sigprocmask (SIG_SETMASK, &prev, 0);	2389	sigprocmask (SIG_SETMASK, &prev, 0);
2121	#endif	2390	#endif
2122	}	2391	}
…		…
2134	sigfillset (&sa.sa_mask);	2403	sigfillset (&sa.sa_mask);
2135	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2404	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2136	sigaction (w->signum, &sa, 0);	2405	sigaction (w->signum, &sa, 0);
2137	#endif	2406	#endif
2138	}	2407	}
		2408
		2409	EV_FREQUENT_CHECK;
2139	}	2410	}
2140		2411
2141	void noinline	2412	void noinline
2142	ev_signal_stop (EV_P_ ev_signal *w)	2413	ev_signal_stop (EV_P_ ev_signal *w)
2143	{	2414	{
2144	clear_pending (EV_A_ (W)w);	2415	clear_pending (EV_A_ (W)w);
2145	if (expect_false (!ev_is_active (w)))	2416	if (expect_false (!ev_is_active (w)))
2146	return;	2417	return;
2147		2418
		2419	EV_FREQUENT_CHECK;
		2420
2148	wlist_del (&signals [w->signum - 1].head, (WL)w);	2421	wlist_del (&signals [w->signum - 1].head, (WL)w);
2149	ev_stop (EV_A_ (W)w);	2422	ev_stop (EV_A_ (W)w);
2150		2423
2151	if (!signals [w->signum - 1].head)	2424	if (!signals [w->signum - 1].head)
2152	signal (w->signum, SIG_DFL);	2425	signal (w->signum, SIG_DFL);
		2426
		2427	EV_FREQUENT_CHECK;
2153	}	2428	}
2154		2429
2155	void	2430	void
2156	ev_child_start (EV_P_ ev_child *w)	2431	ev_child_start (EV_P_ ev_child *w)
2157	{	2432	{
2158	#if EV_MULTIPLICITY	2433	#if EV_MULTIPLICITY
2159	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2434	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2160	#endif	2435	#endif
2161	if (expect_false (ev_is_active (w)))	2436	if (expect_false (ev_is_active (w)))
2162	return;	2437	return;
2163		2438
		2439	EV_FREQUENT_CHECK;
		2440
2164	ev_start (EV_A_ (W)w, 1);	2441	ev_start (EV_A_ (W)w, 1);
2165	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2442	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2443
		2444	EV_FREQUENT_CHECK;
2166	}	2445	}
2167		2446
2168	void	2447	void
2169	ev_child_stop (EV_P_ ev_child *w)	2448	ev_child_stop (EV_P_ ev_child *w)
2170	{	2449	{
2171	clear_pending (EV_A_ (W)w);	2450	clear_pending (EV_A_ (W)w);
2172	if (expect_false (!ev_is_active (w)))	2451	if (expect_false (!ev_is_active (w)))
2173	return;	2452	return;
2174		2453
		2454	EV_FREQUENT_CHECK;
		2455
2175	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2456	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2176	ev_stop (EV_A_ (W)w);	2457	ev_stop (EV_A_ (W)w);
		2458
		2459	EV_FREQUENT_CHECK;
2177	}	2460	}
2178		2461
2179	#if EV_STAT_ENABLE	2462	#if EV_STAT_ENABLE
2180		2463
2181	# ifdef _WIN32	2464	# ifdef _WIN32
2182	# undef lstat	2465	# undef lstat
2183	# define lstat(a,b) _stati64 (a,b)	2466	# define lstat(a,b) _stati64 (a,b)
2184	# endif	2467	# endif
2185		2468
2186	#define DEF_STAT_INTERVAL 5.0074891	2469	#define DEF_STAT_INTERVAL 5.0074891
		2470	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2187	#define MIN_STAT_INTERVAL 0.1074891	2471	#define MIN_STAT_INTERVAL 0.1074891
2188		2472
2189	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2473	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2190		2474
2191	#if EV_USE_INOTIFY	2475	#if EV_USE_INOTIFY
2192	# define EV_INOTIFY_BUFSIZE 8192	2476	# define EV_INOTIFY_BUFSIZE 8192
…		…
2196	{	2480	{
2197	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);	2481	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);
2198		2482
2199	if (w->wd < 0)	2483	if (w->wd < 0)
2200	{	2484	{
		2485	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2201	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2486	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2202		2487
2203	/* monitor some parent directory for speedup hints */	2488	/* monitor some parent directory for speedup hints */
2204	/* note that exceeding the hardcoded limit is not a correctness issue, */	2489	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2205	/* but an efficiency issue only */	2490	/* but an efficiency issue only */
2206	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2491	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2207	{	2492	{
2208	char path [4096];	2493	char path [4096];
2209	strcpy (path, w->path);	2494	strcpy (path, w->path);
…		…
2213	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2498	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2214	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2499	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2215		2500
2216	char *pend = strrchr (path, '/');	2501	char *pend = strrchr (path, '/');
2217		2502
2218	if (!pend)	2503	if (!pend || pend == path)
2219	break; /* whoops, no '/', complain to your admin */	2504	break;
2220		2505
2221	*pend = 0;	2506	*pend = 0;
2222	w->wd = inotify_add_watch (fs_fd, path, mask);	2507	w->wd = inotify_add_watch (fs_fd, path, mask);
2223	}	2508	}
2224	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2509	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2225	}	2510	}
2226	}	2511	}
2227	else
2228	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2229		2512
2230	if (w->wd >= 0)	2513	if (w->wd >= 0)
		2514	{
2231	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2515	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2516
		2517	/* now local changes will be tracked by inotify, but remote changes won't */
		2518	/* unless the filesystem it known to be local, we therefore still poll */
		2519	/* also do poll on <2.6.25, but with normal frequency */
		2520	struct statfs sfs;
		2521
		2522	if (fs_2625 && !statfs (w->path, &sfs))
		2523	if (sfs.f_type == 0x1373 /* devfs */
		2524	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2525	|| sfs.f_type == 0x3153464a /* jfs */
		2526	|| sfs.f_type == 0x52654973 /* reiser3 */
		2527	|| sfs.f_type == 0x01021994 /* tempfs */
		2528	|| sfs.f_type == 0x58465342 /* xfs */)
		2529	return;
		2530
		2531	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2532	ev_timer_again (EV_A_ &w->timer);
		2533	}
2232	}	2534	}
2233		2535
2234	static void noinline	2536	static void noinline
2235	infy_del (EV_P_ ev_stat *w)	2537	infy_del (EV_P_ ev_stat *w)
2236	{	2538	{
…		…
2250		2552
2251	static void noinline	2553	static void noinline
2252	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2554	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2253	{	2555	{
2254	if (slot < 0)	2556	if (slot < 0)
2255	/* overflow, need to check for all hahs slots */	2557	/* overflow, need to check for all hash slots */
2256	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2558	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2257	infy_wd (EV_A_ slot, wd, ev);	2559	infy_wd (EV_A_ slot, wd, ev);
2258	else	2560	else
2259	{	2561	{
2260	WL w_;	2562	WL w_;
…		…
2266		2568
2267	if (w->wd == wd || wd == -1)	2569	if (w->wd == wd || wd == -1)
2268	{	2570	{
2269	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2571	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2270	{	2572	{
		2573	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2271	w->wd = -1;	2574	w->wd = -1;
2272	infy_add (EV_A_ w); /* re-add, no matter what */	2575	infy_add (EV_A_ w); /* re-add, no matter what */
2273	}	2576	}
2274		2577
2275	stat_timer_cb (EV_A_ &w->timer, 0);	2578	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2289	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2592	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2290	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2593	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2291	}	2594	}
2292		2595
2293	void inline_size	2596	void inline_size
		2597	check_2625 (EV_P)
		2598	{
		2599	/* kernels < 2.6.25 are borked
		2600	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2601	*/
		2602	struct utsname buf;
		2603	int major, minor, micro;
		2604
		2605	if (uname (&buf))
		2606	return;
		2607
		2608	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2609	return;
		2610
		2611	if (major < 2
		2612	|| (major == 2 && minor < 6)
		2613	|| (major == 2 && minor == 6 && micro < 25))
		2614	return;
		2615
		2616	fs_2625 = 1;
		2617	}
		2618
		2619	void inline_size
2294	infy_init (EV_P)	2620	infy_init (EV_P)
2295	{	2621	{
2296	if (fs_fd != -2)	2622	if (fs_fd != -2)
2297	return;	2623	return;
		2624
		2625	fs_fd = -1;
		2626
		2627	check_2625 (EV_A);
2298		2628
2299	fs_fd = inotify_init ();	2629	fs_fd = inotify_init ();
2300		2630
2301	if (fs_fd >= 0)	2631	if (fs_fd >= 0)
2302	{	2632	{
…		…
2330	w->wd = -1;	2660	w->wd = -1;
2331		2661
2332	if (fs_fd >= 0)	2662	if (fs_fd >= 0)
2333	infy_add (EV_A_ w); /* re-add, no matter what */	2663	infy_add (EV_A_ w); /* re-add, no matter what */
2334	else	2664	else
2335	ev_timer_start (EV_A_ &w->timer);	2665	ev_timer_again (EV_A_ &w->timer);
2336	}	2666	}
2337
2338	}	2667	}
2339	}	2668	}
2340		2669
		2670	#endif
		2671
		2672	#ifdef _WIN32
		2673	# define EV_LSTAT(p,b) _stati64 (p, b)
		2674	#else
		2675	# define EV_LSTAT(p,b) lstat (p, b)
2341	#endif	2676	#endif
2342		2677
2343	void	2678	void
2344	ev_stat_stat (EV_P_ ev_stat *w)	2679	ev_stat_stat (EV_P_ ev_stat *w)
2345	{	2680	{
…		…
2372	|| w->prev.st_atime != w->attr.st_atime	2707	|| w->prev.st_atime != w->attr.st_atime
2373	|| w->prev.st_mtime != w->attr.st_mtime	2708	|| w->prev.st_mtime != w->attr.st_mtime
2374	|| w->prev.st_ctime != w->attr.st_ctime	2709	|| w->prev.st_ctime != w->attr.st_ctime
2375	) {	2710	) {
2376	#if EV_USE_INOTIFY	2711	#if EV_USE_INOTIFY
		2712	if (fs_fd >= 0)
		2713	{
2377	infy_del (EV_A_ w);	2714	infy_del (EV_A_ w);
2378	infy_add (EV_A_ w);	2715	infy_add (EV_A_ w);
2379	ev_stat_stat (EV_A_ w); /* avoid race... */	2716	ev_stat_stat (EV_A_ w); /* avoid race... */
		2717	}
2380	#endif	2718	#endif
2381		2719
2382	ev_feed_event (EV_A_ w, EV_STAT);	2720	ev_feed_event (EV_A_ w, EV_STAT);
2383	}	2721	}
2384	}	2722	}
…		…
2387	ev_stat_start (EV_P_ ev_stat *w)	2725	ev_stat_start (EV_P_ ev_stat *w)
2388	{	2726	{
2389	if (expect_false (ev_is_active (w)))	2727	if (expect_false (ev_is_active (w)))
2390	return;	2728	return;
2391		2729
2392	/* since we use memcmp, we need to clear any padding data etc. */
2393	memset (&w->prev, 0, sizeof (ev_statdata));
2394	memset (&w->attr, 0, sizeof (ev_statdata));
2395
2396	ev_stat_stat (EV_A_ w);	2730	ev_stat_stat (EV_A_ w);
2397		2731
		2732	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2398	if (w->interval < MIN_STAT_INTERVAL)	2733	w->interval = MIN_STAT_INTERVAL;
2399	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2400		2734
2401	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2735	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2402	ev_set_priority (&w->timer, ev_priority (w));	2736	ev_set_priority (&w->timer, ev_priority (w));
2403		2737
2404	#if EV_USE_INOTIFY	2738	#if EV_USE_INOTIFY
2405	infy_init (EV_A);	2739	infy_init (EV_A);
2406		2740
2407	if (fs_fd >= 0)	2741	if (fs_fd >= 0)
2408	infy_add (EV_A_ w);	2742	infy_add (EV_A_ w);
2409	else	2743	else
2410	#endif	2744	#endif
2411	ev_timer_start (EV_A_ &w->timer);	2745	ev_timer_again (EV_A_ &w->timer);
2412		2746
2413	ev_start (EV_A_ (W)w, 1);	2747	ev_start (EV_A_ (W)w, 1);
		2748
		2749	EV_FREQUENT_CHECK;
2414	}	2750	}
2415		2751
2416	void	2752	void
2417	ev_stat_stop (EV_P_ ev_stat *w)	2753	ev_stat_stop (EV_P_ ev_stat *w)
2418	{	2754	{
2419	clear_pending (EV_A_ (W)w);	2755	clear_pending (EV_A_ (W)w);
2420	if (expect_false (!ev_is_active (w)))	2756	if (expect_false (!ev_is_active (w)))
2421	return;	2757	return;
2422		2758
		2759	EV_FREQUENT_CHECK;
		2760
2423	#if EV_USE_INOTIFY	2761	#if EV_USE_INOTIFY
2424	infy_del (EV_A_ w);	2762	infy_del (EV_A_ w);
2425	#endif	2763	#endif
2426	ev_timer_stop (EV_A_ &w->timer);	2764	ev_timer_stop (EV_A_ &w->timer);
2427		2765
2428	ev_stop (EV_A_ (W)w);	2766	ev_stop (EV_A_ (W)w);
		2767
		2768	EV_FREQUENT_CHECK;
2429	}	2769	}
2430	#endif	2770	#endif
2431		2771
2432	#if EV_IDLE_ENABLE	2772	#if EV_IDLE_ENABLE
2433	void	2773	void
…		…
2435	{	2775	{
2436	if (expect_false (ev_is_active (w)))	2776	if (expect_false (ev_is_active (w)))
2437	return;	2777	return;
2438		2778
2439	pri_adjust (EV_A_ (W)w);	2779	pri_adjust (EV_A_ (W)w);
		2780
		2781	EV_FREQUENT_CHECK;
2440		2782
2441	{	2783	{
2442	int active = ++idlecnt [ABSPRI (w)];	2784	int active = ++idlecnt [ABSPRI (w)];
2443		2785
2444	++idleall;	2786	++idleall;
2445	ev_start (EV_A_ (W)w, active);	2787	ev_start (EV_A_ (W)w, active);
2446		2788
2447	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2789	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2448	idles [ABSPRI (w)][active - 1] = w;	2790	idles [ABSPRI (w)][active - 1] = w;
2449	}	2791	}
		2792
		2793	EV_FREQUENT_CHECK;
2450	}	2794	}
2451		2795
2452	void	2796	void
2453	ev_idle_stop (EV_P_ ev_idle *w)	2797	ev_idle_stop (EV_P_ ev_idle *w)
2454	{	2798	{
2455	clear_pending (EV_A_ (W)w);	2799	clear_pending (EV_A_ (W)w);
2456	if (expect_false (!ev_is_active (w)))	2800	if (expect_false (!ev_is_active (w)))
2457	return;	2801	return;
2458		2802
		2803	EV_FREQUENT_CHECK;
		2804
2459	{	2805	{
2460	int active = ev_active (w);	2806	int active = ev_active (w);
2461		2807
2462	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2808	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2463	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2809	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2464		2810
2465	ev_stop (EV_A_ (W)w);	2811	ev_stop (EV_A_ (W)w);
2466	--idleall;	2812	--idleall;
2467	}	2813	}
		2814
		2815	EV_FREQUENT_CHECK;
2468	}	2816	}
2469	#endif	2817	#endif
2470		2818
2471	void	2819	void
2472	ev_prepare_start (EV_P_ ev_prepare *w)	2820	ev_prepare_start (EV_P_ ev_prepare *w)
2473	{	2821	{
2474	if (expect_false (ev_is_active (w)))	2822	if (expect_false (ev_is_active (w)))
2475	return;	2823	return;
		2824
		2825	EV_FREQUENT_CHECK;
2476		2826
2477	ev_start (EV_A_ (W)w, ++preparecnt);	2827	ev_start (EV_A_ (W)w, ++preparecnt);
2478	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2828	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2479	prepares [preparecnt - 1] = w;	2829	prepares [preparecnt - 1] = w;
		2830
		2831	EV_FREQUENT_CHECK;
2480	}	2832	}
2481		2833
2482	void	2834	void
2483	ev_prepare_stop (EV_P_ ev_prepare *w)	2835	ev_prepare_stop (EV_P_ ev_prepare *w)
2484	{	2836	{
2485	clear_pending (EV_A_ (W)w);	2837	clear_pending (EV_A_ (W)w);
2486	if (expect_false (!ev_is_active (w)))	2838	if (expect_false (!ev_is_active (w)))
2487	return;	2839	return;
2488		2840
		2841	EV_FREQUENT_CHECK;
		2842
2489	{	2843	{
2490	int active = ev_active (w);	2844	int active = ev_active (w);
2491		2845
2492	prepares [active - 1] = prepares [--preparecnt];	2846	prepares [active - 1] = prepares [--preparecnt];
2493	ev_active (prepares [active - 1]) = active;	2847	ev_active (prepares [active - 1]) = active;
2494	}	2848	}
2495		2849
2496	ev_stop (EV_A_ (W)w);	2850	ev_stop (EV_A_ (W)w);
		2851
		2852	EV_FREQUENT_CHECK;
2497	}	2853	}
2498		2854
2499	void	2855	void
2500	ev_check_start (EV_P_ ev_check *w)	2856	ev_check_start (EV_P_ ev_check *w)
2501	{	2857	{
2502	if (expect_false (ev_is_active (w)))	2858	if (expect_false (ev_is_active (w)))
2503	return;	2859	return;
		2860
		2861	EV_FREQUENT_CHECK;
2504		2862
2505	ev_start (EV_A_ (W)w, ++checkcnt);	2863	ev_start (EV_A_ (W)w, ++checkcnt);
2506	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2864	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2507	checks [checkcnt - 1] = w;	2865	checks [checkcnt - 1] = w;
		2866
		2867	EV_FREQUENT_CHECK;
2508	}	2868	}
2509		2869
2510	void	2870	void
2511	ev_check_stop (EV_P_ ev_check *w)	2871	ev_check_stop (EV_P_ ev_check *w)
2512	{	2872	{
2513	clear_pending (EV_A_ (W)w);	2873	clear_pending (EV_A_ (W)w);
2514	if (expect_false (!ev_is_active (w)))	2874	if (expect_false (!ev_is_active (w)))
2515	return;	2875	return;
2516		2876
		2877	EV_FREQUENT_CHECK;
		2878
2517	{	2879	{
2518	int active = ev_active (w);	2880	int active = ev_active (w);
2519		2881
2520	checks [active - 1] = checks [--checkcnt];	2882	checks [active - 1] = checks [--checkcnt];
2521	ev_active (checks [active - 1]) = active;	2883	ev_active (checks [active - 1]) = active;
2522	}	2884	}
2523		2885
2524	ev_stop (EV_A_ (W)w);	2886	ev_stop (EV_A_ (W)w);
		2887
		2888	EV_FREQUENT_CHECK;
2525	}	2889	}
2526		2890
2527	#if EV_EMBED_ENABLE	2891	#if EV_EMBED_ENABLE
2528	void noinline	2892	void noinline
2529	ev_embed_sweep (EV_P_ ev_embed *w)	2893	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2556	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2920	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2557	}	2921	}
2558	}	2922	}
2559	}	2923	}
2560		2924
		2925	static void
		2926	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2927	{
		2928	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		2929
		2930	ev_embed_stop (EV_A_ w);
		2931
		2932	{
		2933	struct ev_loop *loop = w->other;
		2934
		2935	ev_loop_fork (EV_A);
		2936	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2937	}
		2938
		2939	ev_embed_start (EV_A_ w);
		2940	}
		2941
2561	#if 0	2942	#if 0
2562	static void	2943	static void
2563	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2944	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2564	{	2945	{
2565	ev_idle_stop (EV_A_ idle);	2946	ev_idle_stop (EV_A_ idle);
…		…
2572	if (expect_false (ev_is_active (w)))	2953	if (expect_false (ev_is_active (w)))
2573	return;	2954	return;
2574		2955
2575	{	2956	{
2576	struct ev_loop *loop = w->other;	2957	struct ev_loop *loop = w->other;
2577	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2958	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2578	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2959	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2579	}	2960	}
		2961
		2962	EV_FREQUENT_CHECK;
2580		2963
2581	ev_set_priority (&w->io, ev_priority (w));	2964	ev_set_priority (&w->io, ev_priority (w));
2582	ev_io_start (EV_A_ &w->io);	2965	ev_io_start (EV_A_ &w->io);
2583		2966
2584	ev_prepare_init (&w->prepare, embed_prepare_cb);	2967	ev_prepare_init (&w->prepare, embed_prepare_cb);
2585	ev_set_priority (&w->prepare, EV_MINPRI);	2968	ev_set_priority (&w->prepare, EV_MINPRI);
2586	ev_prepare_start (EV_A_ &w->prepare);	2969	ev_prepare_start (EV_A_ &w->prepare);
2587		2970
		2971	ev_fork_init (&w->fork, embed_fork_cb);
		2972	ev_fork_start (EV_A_ &w->fork);
		2973
2588	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	2974	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2589		2975
2590	ev_start (EV_A_ (W)w, 1);	2976	ev_start (EV_A_ (W)w, 1);
		2977
		2978	EV_FREQUENT_CHECK;
2591	}	2979	}
2592		2980
2593	void	2981	void
2594	ev_embed_stop (EV_P_ ev_embed *w)	2982	ev_embed_stop (EV_P_ ev_embed *w)
2595	{	2983	{
2596	clear_pending (EV_A_ (W)w);	2984	clear_pending (EV_A_ (W)w);
2597	if (expect_false (!ev_is_active (w)))	2985	if (expect_false (!ev_is_active (w)))
2598	return;	2986	return;
2599		2987
		2988	EV_FREQUENT_CHECK;
		2989
2600	ev_io_stop (EV_A_ &w->io);	2990	ev_io_stop (EV_A_ &w->io);
2601	ev_prepare_stop (EV_A_ &w->prepare);	2991	ev_prepare_stop (EV_A_ &w->prepare);
		2992	ev_fork_stop (EV_A_ &w->fork);
2602		2993
2603	ev_stop (EV_A_ (W)w);	2994	EV_FREQUENT_CHECK;
2604	}	2995	}
2605	#endif	2996	#endif
2606		2997
2607	#if EV_FORK_ENABLE	2998	#if EV_FORK_ENABLE
2608	void	2999	void
2609	ev_fork_start (EV_P_ ev_fork *w)	3000	ev_fork_start (EV_P_ ev_fork *w)
2610	{	3001	{
2611	if (expect_false (ev_is_active (w)))	3002	if (expect_false (ev_is_active (w)))
2612	return;	3003	return;
		3004
		3005	EV_FREQUENT_CHECK;
2613		3006
2614	ev_start (EV_A_ (W)w, ++forkcnt);	3007	ev_start (EV_A_ (W)w, ++forkcnt);
2615	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	3008	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2616	forks [forkcnt - 1] = w;	3009	forks [forkcnt - 1] = w;
		3010
		3011	EV_FREQUENT_CHECK;
2617	}	3012	}
2618		3013
2619	void	3014	void
2620	ev_fork_stop (EV_P_ ev_fork *w)	3015	ev_fork_stop (EV_P_ ev_fork *w)
2621	{	3016	{
2622	clear_pending (EV_A_ (W)w);	3017	clear_pending (EV_A_ (W)w);
2623	if (expect_false (!ev_is_active (w)))	3018	if (expect_false (!ev_is_active (w)))
2624	return;	3019	return;
2625		3020
		3021	EV_FREQUENT_CHECK;
		3022
2626	{	3023	{
2627	int active = ev_active (w);	3024	int active = ev_active (w);
2628		3025
2629	forks [active - 1] = forks [--forkcnt];	3026	forks [active - 1] = forks [--forkcnt];
2630	ev_active (forks [active - 1]) = active;	3027	ev_active (forks [active - 1]) = active;
2631	}	3028	}
2632		3029
2633	ev_stop (EV_A_ (W)w);	3030	ev_stop (EV_A_ (W)w);
		3031
		3032	EV_FREQUENT_CHECK;
2634	}	3033	}
2635	#endif	3034	#endif
2636		3035
2637	#if EV_ASYNC_ENABLE	3036	#if EV_ASYNC_ENABLE
2638	void	3037	void
…		…
2640	{	3039	{
2641	if (expect_false (ev_is_active (w)))	3040	if (expect_false (ev_is_active (w)))
2642	return;	3041	return;
2643		3042
2644	evpipe_init (EV_A);	3043	evpipe_init (EV_A);
		3044
		3045	EV_FREQUENT_CHECK;
2645		3046
2646	ev_start (EV_A_ (W)w, ++asynccnt);	3047	ev_start (EV_A_ (W)w, ++asynccnt);
2647	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3048	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2648	asyncs [asynccnt - 1] = w;	3049	asyncs [asynccnt - 1] = w;
		3050
		3051	EV_FREQUENT_CHECK;
2649	}	3052	}
2650		3053
2651	void	3054	void
2652	ev_async_stop (EV_P_ ev_async *w)	3055	ev_async_stop (EV_P_ ev_async *w)
2653	{	3056	{
2654	clear_pending (EV_A_ (W)w);	3057	clear_pending (EV_A_ (W)w);
2655	if (expect_false (!ev_is_active (w)))	3058	if (expect_false (!ev_is_active (w)))
2656	return;	3059	return;
2657		3060
		3061	EV_FREQUENT_CHECK;
		3062
2658	{	3063	{
2659	int active = ev_active (w);	3064	int active = ev_active (w);
2660		3065
2661	asyncs [active - 1] = asyncs [--asynccnt];	3066	asyncs [active - 1] = asyncs [--asynccnt];
2662	ev_active (asyncs [active - 1]) = active;	3067	ev_active (asyncs [active - 1]) = active;
2663	}	3068	}
2664		3069
2665	ev_stop (EV_A_ (W)w);	3070	ev_stop (EV_A_ (W)w);
		3071
		3072	EV_FREQUENT_CHECK;
2666	}	3073	}
2667		3074
2668	void	3075	void
2669	ev_async_send (EV_P_ ev_async *w)	3076	ev_async_send (EV_P_ ev_async *w)
2670	{	3077	{
…		…
2687	once_cb (EV_P_ struct ev_once *once, int revents)	3094	once_cb (EV_P_ struct ev_once *once, int revents)
2688	{	3095	{
2689	void (*cb)(int revents, void *arg) = once->cb;	3096	void (*cb)(int revents, void *arg) = once->cb;
2690	void *arg = once->arg;	3097	void *arg = once->arg;
2691		3098
2692	ev_io_stop (EV_A_ &once->io);	3099	ev_io_stop (EV_A_ &once->io);
2693	ev_timer_stop (EV_A_ &once->to);	3100	ev_timer_stop (EV_A_ &once->to);
2694	ev_free (once);	3101	ev_free (once);
2695		3102
2696	cb (revents, arg);	3103	cb (revents, arg);
2697	}	3104	}
2698		3105
2699	static void	3106	static void
2700	once_cb_io (EV_P_ ev_io *w, int revents)	3107	once_cb_io (EV_P_ ev_io *w, int revents)
2701	{	3108	{
2702	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3109	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3110
		3111	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2703	}	3112	}
2704		3113
2705	static void	3114	static void
2706	once_cb_to (EV_P_ ev_timer *w, int revents)	3115	once_cb_to (EV_P_ ev_timer *w, int revents)
2707	{	3116	{
2708	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3117	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3118
		3119	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2709	}	3120	}
2710		3121
2711	void	3122	void
2712	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3123	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2713	{	3124	{
…		…
2735	ev_timer_set (&once->to, timeout, 0.);	3146	ev_timer_set (&once->to, timeout, 0.);
2736	ev_timer_start (EV_A_ &once->to);	3147	ev_timer_start (EV_A_ &once->to);
2737	}	3148	}
2738	}	3149	}
2739		3150
		3151	/*****************************************************************************/
		3152
		3153	#if 0
		3154	void
		3155	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3156	{
		3157	int i, j;
		3158	ev_watcher_list *wl, *wn;
		3159
		3160	if (types & (EV_IO | EV_EMBED))
		3161	for (i = 0; i < anfdmax; ++i)
		3162	for (wl = anfds [i].head; wl; )
		3163	{
		3164	wn = wl->next;
		3165
		3166	#if EV_EMBED_ENABLE
		3167	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3168	{
		3169	if (types & EV_EMBED)
		3170	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3171	}
		3172	else
		3173	#endif
		3174	#if EV_USE_INOTIFY
		3175	if (ev_cb ((ev_io *)wl) == infy_cb)
		3176	;
		3177	else
		3178	#endif
		3179	if ((ev_io *)wl != &pipeev)
		3180	if (types & EV_IO)
		3181	cb (EV_A_ EV_IO, wl);
		3182
		3183	wl = wn;
		3184	}
		3185
		3186	if (types & (EV_TIMER | EV_STAT))
		3187	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3188	#if EV_STAT_ENABLE
		3189	/*TODO: timer is not always active*/
		3190	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3191	{
		3192	if (types & EV_STAT)
		3193	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3194	}
		3195	else
		3196	#endif
		3197	if (types & EV_TIMER)
		3198	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3199
		3200	#if EV_PERIODIC_ENABLE
		3201	if (types & EV_PERIODIC)
		3202	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3203	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3204	#endif
		3205
		3206	#if EV_IDLE_ENABLE
		3207	if (types & EV_IDLE)
		3208	for (j = NUMPRI; i--; )
		3209	for (i = idlecnt [j]; i--; )
		3210	cb (EV_A_ EV_IDLE, idles [j][i]);
		3211	#endif
		3212
		3213	#if EV_FORK_ENABLE
		3214	if (types & EV_FORK)
		3215	for (i = forkcnt; i--; )
		3216	if (ev_cb (forks [i]) != embed_fork_cb)
		3217	cb (EV_A_ EV_FORK, forks [i]);
		3218	#endif
		3219
		3220	#if EV_ASYNC_ENABLE
		3221	if (types & EV_ASYNC)
		3222	for (i = asynccnt; i--; )
		3223	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3224	#endif
		3225
		3226	if (types & EV_PREPARE)
		3227	for (i = preparecnt; i--; )
		3228	#if EV_EMBED_ENABLE
		3229	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3230	#endif
		3231	cb (EV_A_ EV_PREPARE, prepares [i]);
		3232
		3233	if (types & EV_CHECK)
		3234	for (i = checkcnt; i--; )
		3235	cb (EV_A_ EV_CHECK, checks [i]);
		3236
		3237	if (types & EV_SIGNAL)
		3238	for (i = 0; i < signalmax; ++i)
		3239	for (wl = signals [i].head; wl; )
		3240	{
		3241	wn = wl->next;
		3242	cb (EV_A_ EV_SIGNAL, wl);
		3243	wl = wn;
		3244	}
		3245
		3246	if (types & EV_CHILD)
		3247	for (i = EV_PID_HASHSIZE; i--; )
		3248	for (wl = childs [i]; wl; )
		3249	{
		3250	wn = wl->next;
		3251	cb (EV_A_ EV_CHILD, wl);
		3252	wl = wn;
		3253	}
		3254	/* EV_STAT 0x00001000 /* stat data changed */
		3255	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3256	}
		3257	#endif
		3258
2740	#if EV_MULTIPLICITY	3259	#if EV_MULTIPLICITY
2741	#include "ev_wrap.h"	3260	#include "ev_wrap.h"
2742	#endif	3261	#endif
2743		3262
2744	#ifdef __cplusplus	3263	#ifdef __cplusplus

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