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Comparing libev/ev.c (file contents):
Revision 1.224 by root, Wed Apr 9 22:07:50 2008 UTC vs.
Revision 1.306 by root, Sun Jul 19 06:35:25 2009 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
		64	# endif
		65
52	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
55	# endif	69	# endif
56	# ifndef EV_USE_REALTIME	70	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	71	# define EV_USE_REALTIME 0
58	# endif	72	# endif
59	# else	73	# else
60	# ifndef EV_USE_MONOTONIC	74	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	75	# define EV_USE_MONOTONIC 0
62	# endif	76	# endif
…		…
119	# else	133	# else
120	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
121	# endif	135	# endif
122	# endif	136	# endif
123		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
		143	# endif
		144	# endif
		145
124	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
125	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
126	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
127	# else	149	# else
128	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
129	# endif	151	# endif
130	# endif	152	# endif
131		153
132	#endif	154	#endif
133		155
134	#include <math.h>	156	#include <math.h>
135	#include <stdlib.h>	157	#include <stdlib.h>
136	#include <fcntl.h>	158	#include <fcntl.h>
…		…
154	#ifndef _WIN32	176	#ifndef _WIN32
155	# include <sys/time.h>	177	# include <sys/time.h>
156	# include <sys/wait.h>	178	# include <sys/wait.h>
157	# include <unistd.h>	179	# include <unistd.h>
158	#else	180	#else
		181	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	182	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	183	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	184	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	185	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	186	# endif
164	#endif	187	#endif
165		188
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	/* one some platforms, NSIG is one too large. we do not bother */
		193	#if defined (EV_NSIG)
		194	/* use what's provided */
		195	#elif defined (NSIG)
		196	# define EV_NSIG (NSIG)
		197	#elif defined(_NSIG)
		198	# define EV_NSIG (_NSIG)
		199	#elif defined (SIGMAX)
		200	# define EV_NSIG (SIGMAX+1)
		201	#elif defined (SIG_MAX)
		202	# define EV_NSIG (SIG_MAX+1)
		203	#elif defined (_SIG_MAX)
		204	# define EV_NSIG (_SIG_MAX+1)
		205	#elif defined (MAXSIG)
		206	# define EV_NSIG (MAXSIG+1)
		207	#elif defined (MAX_SIG)
		208	# define EV_NSIG (MAX_SIG+1)
		209	#elif defined (SIGARRAYSIZE)
		210	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		211	#elif defined (_sys_nsig)
		212	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		213	#else
		214	# error "unable to find value for NSIG, please report"
		215	/* to make it compile regardless, just remove the above line */
		216	# define EV_NSIG 65
		217	#endif
		218
		219	#ifndef EV_USE_CLOCK_SYSCALL
		220	# if __linux && __GLIBC__ >= 2
		221	# define EV_USE_CLOCK_SYSCALL 1
		222	# else
		223	# define EV_USE_CLOCK_SYSCALL 0
		224	# endif
		225	#endif
		226
168	#ifndef EV_USE_MONOTONIC	227	#ifndef EV_USE_MONOTONIC
		228	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		229	# define EV_USE_MONOTONIC 1
		230	# else
169	# define EV_USE_MONOTONIC 0	231	# define EV_USE_MONOTONIC 0
		232	# endif
170	#endif	233	#endif
171		234
172	#ifndef EV_USE_REALTIME	235	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	236	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174	#endif	237	#endif
175		238
176	#ifndef EV_USE_NANOSLEEP	239	#ifndef EV_USE_NANOSLEEP
		240	# if _POSIX_C_SOURCE >= 199309L
		241	# define EV_USE_NANOSLEEP 1
		242	# else
177	# define EV_USE_NANOSLEEP 0	243	# define EV_USE_NANOSLEEP 0
		244	# endif
178	#endif	245	#endif
179		246
180	#ifndef EV_USE_SELECT	247	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	248	# define EV_USE_SELECT 1
182	#endif	249	#endif
…		…
235	# else	302	# else
236	# define EV_USE_EVENTFD 0	303	# define EV_USE_EVENTFD 0
237	# endif	304	# endif
238	#endif	305	#endif
239		306
		307	#ifndef EV_USE_SIGNALFD
		308	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
		309	# define EV_USE_SIGNALFD 1
		310	# else
		311	# define EV_USE_SIGNALFD 0
		312	# endif
		313	#endif
		314
		315	#if 0 /* debugging */
		316	# define EV_VERIFY 3
		317	# define EV_USE_4HEAP 1
		318	# define EV_HEAP_CACHE_AT 1
		319	#endif
		320
		321	#ifndef EV_VERIFY
		322	# define EV_VERIFY !EV_MINIMAL
		323	#endif
		324
		325	#ifndef EV_USE_4HEAP
		326	# define EV_USE_4HEAP !EV_MINIMAL
		327	#endif
		328
		329	#ifndef EV_HEAP_CACHE_AT
		330	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		331	#endif
		332
		333	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		334	/* which makes programs even slower. might work on other unices, too. */
		335	#if EV_USE_CLOCK_SYSCALL
		336	# include <syscall.h>
		337	# ifdef SYS_clock_gettime
		338	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		339	# undef EV_USE_MONOTONIC
		340	# define EV_USE_MONOTONIC 1
		341	# else
		342	# undef EV_USE_CLOCK_SYSCALL
		343	# define EV_USE_CLOCK_SYSCALL 0
		344	# endif
		345	#endif
		346
240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	347	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241		348
242	#ifndef CLOCK_MONOTONIC	349	#ifndef CLOCK_MONOTONIC
243	# undef EV_USE_MONOTONIC	350	# undef EV_USE_MONOTONIC
244	# define EV_USE_MONOTONIC 0	351	# define EV_USE_MONOTONIC 0
…		…
259	# include <sys/select.h>	366	# include <sys/select.h>
260	# endif	367	# endif
261	#endif	368	#endif
262		369
263	#if EV_USE_INOTIFY	370	#if EV_USE_INOTIFY
		371	# include <sys/utsname.h>
		372	# include <sys/statfs.h>
264	# include <sys/inotify.h>	373	# include <sys/inotify.h>
		374	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		375	# ifndef IN_DONT_FOLLOW
		376	# undef EV_USE_INOTIFY
		377	# define EV_USE_INOTIFY 0
		378	# endif
265	#endif	379	#endif
266		380
267	#if EV_SELECT_IS_WINSOCKET	381	#if EV_SELECT_IS_WINSOCKET
268	# include <winsock.h>	382	# include <winsock.h>
269	#endif	383	#endif
270		384
271	#if EV_USE_EVENTFD	385	#if EV_USE_EVENTFD
272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	386	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
273	# include <stdint.h>	387	# include <stdint.h>
		388	# ifndef EFD_NONBLOCK
		389	# define EFD_NONBLOCK O_NONBLOCK
		390	# endif
		391	# ifndef EFD_CLOEXEC
		392	# define EFD_CLOEXEC O_CLOEXEC
		393	# endif
274	# ifdef __cplusplus	394	# ifdef __cplusplus
275	extern "C" {	395	extern "C" {
276	# endif	396	# endif
277	int eventfd (unsigned int initval, int flags);	397	int eventfd (unsigned int initval, int flags);
278	# ifdef __cplusplus	398	# ifdef __cplusplus
279	}	399	}
280	# endif	400	# endif
281	#endif	401	#endif
282		402
		403	#if EV_USE_SIGNALFD
		404	# include <sys/signalfd.h>
		405	#endif
		406
283	/**/	407	/**/
		408
		409	#if EV_VERIFY >= 3
		410	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		411	#else
		412	# define EV_FREQUENT_CHECK do { } while (0)
		413	#endif
284		414
285	/*	415	/*
286	* This is used to avoid floating point rounding problems.	416	* This is used to avoid floating point rounding problems.
287	* It is added to ev_rt_now when scheduling periodics	417	* It is added to ev_rt_now when scheduling periodics
288	* to ensure progress, time-wise, even when rounding	418	* to ensure progress, time-wise, even when rounding
…		…
315	# define inline_speed static noinline	445	# define inline_speed static noinline
316	#else	446	#else
317	# define inline_speed static inline	447	# define inline_speed static inline
318	#endif	448	#endif
319		449
320	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	450	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		451
		452	#if EV_MINPRI == EV_MAXPRI
		453	# define ABSPRI(w) (((W)w), 0)
		454	#else
321	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	455	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		456	#endif
322		457
323	#define EMPTY /* required for microsofts broken pseudo-c compiler */	458	#define EMPTY /* required for microsofts broken pseudo-c compiler */
324	#define EMPTY2(a,b) /* used to suppress some warnings */	459	#define EMPTY2(a,b) /* used to suppress some warnings */
325		460
326	typedef ev_watcher *W;	461	typedef ev_watcher *W;
327	typedef ev_watcher_list *WL;	462	typedef ev_watcher_list *WL;
328	typedef ev_watcher_time *WT;	463	typedef ev_watcher_time *WT;
329		464
330	#if EV_USE_MONOTONIC	465	#define ev_active(w) ((W)(w))->active
		466	#define ev_at(w) ((WT)(w))->at
		467
		468	#if EV_USE_REALTIME
331	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	469	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
332	/* giving it a reasonably high chance of working on typical architetcures */	470	/* giving it a reasonably high chance of working on typical architetcures */
		471	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		472	#endif
		473
		474	#if EV_USE_MONOTONIC
333	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	475	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
334	#endif	476	#endif
335		477
336	#ifdef _WIN32	478	#ifdef _WIN32
337	# include "ev_win32.c"	479	# include "ev_win32.c"
…		…
346	{	488	{
347	syserr_cb = cb;	489	syserr_cb = cb;
348	}	490	}
349		491
350	static void noinline	492	static void noinline
351	syserr (const char *msg)	493	ev_syserr (const char *msg)
352	{	494	{
353	if (!msg)	495	if (!msg)
354	msg = "(libev) system error";	496	msg = "(libev) system error";
355		497
356	if (syserr_cb)	498	if (syserr_cb)
…		…
402	#define ev_malloc(size) ev_realloc (0, (size))	544	#define ev_malloc(size) ev_realloc (0, (size))
403	#define ev_free(ptr) ev_realloc ((ptr), 0)	545	#define ev_free(ptr) ev_realloc ((ptr), 0)
404		546
405	/*****************************************************************************/	547	/*****************************************************************************/
406		548
		549	/* set in reify when reification needed */
		550	#define EV_ANFD_REIFY 1
		551
		552	/* file descriptor info structure */
407	typedef struct	553	typedef struct
408	{	554	{
409	WL head;	555	WL head;
410	unsigned char events;	556	unsigned char events; /* the events watched for */
		557	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
		558	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
411	unsigned char reify;	559	unsigned char unused;
		560	#if EV_USE_EPOLL
		561	unsigned int egen; /* generation counter to counter epoll bugs */
		562	#endif
412	#if EV_SELECT_IS_WINSOCKET	563	#if EV_SELECT_IS_WINSOCKET
413	SOCKET handle;	564	SOCKET handle;
414	#endif	565	#endif
415	} ANFD;	566	} ANFD;
416		567
		568	/* stores the pending event set for a given watcher */
417	typedef struct	569	typedef struct
418	{	570	{
419	W w;	571	W w;
420	int events;	572	int events; /* the pending event set for the given watcher */
421	} ANPENDING;	573	} ANPENDING;
422		574
423	#if EV_USE_INOTIFY	575	#if EV_USE_INOTIFY
		576	/* hash table entry per inotify-id */
424	typedef struct	577	typedef struct
425	{	578	{
426	WL head;	579	WL head;
427	} ANFS;	580	} ANFS;
		581	#endif
		582
		583	/* Heap Entry */
		584	#if EV_HEAP_CACHE_AT
		585	/* a heap element */
		586	typedef struct {
		587	ev_tstamp at;
		588	WT w;
		589	} ANHE;
		590
		591	#define ANHE_w(he) (he).w /* access watcher, read-write */
		592	#define ANHE_at(he) (he).at /* access cached at, read-only */
		593	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		594	#else
		595	/* a heap element */
		596	typedef WT ANHE;
		597
		598	#define ANHE_w(he) (he)
		599	#define ANHE_at(he) (he)->at
		600	#define ANHE_at_cache(he)
428	#endif	601	#endif
429		602
430	#if EV_MULTIPLICITY	603	#if EV_MULTIPLICITY
431		604
432	struct ev_loop	605	struct ev_loop
…		…
451		624
452	static int ev_default_loop_ptr;	625	static int ev_default_loop_ptr;
453		626
454	#endif	627	#endif
455		628
		629	#if EV_MINIMAL < 2
		630	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		631	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		632	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		633	#else
		634	# define EV_RELEASE_CB (void)0
		635	# define EV_ACQUIRE_CB (void)0
		636	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		637	#endif
		638
		639	#define EVUNLOOP_RECURSE 0x80
		640
456	/*****************************************************************************/	641	/*****************************************************************************/
457		642
		643	#ifndef EV_HAVE_EV_TIME
458	ev_tstamp	644	ev_tstamp
459	ev_time (void)	645	ev_time (void)
460	{	646	{
461	#if EV_USE_REALTIME	647	#if EV_USE_REALTIME
		648	if (expect_true (have_realtime))
		649	{
462	struct timespec ts;	650	struct timespec ts;
463	clock_gettime (CLOCK_REALTIME, &ts);	651	clock_gettime (CLOCK_REALTIME, &ts);
464	return ts.tv_sec + ts.tv_nsec * 1e-9;	652	return ts.tv_sec + ts.tv_nsec * 1e-9;
465	#else	653	}
		654	#endif
		655
466	struct timeval tv;	656	struct timeval tv;
467	gettimeofday (&tv, 0);	657	gettimeofday (&tv, 0);
468	return tv.tv_sec + tv.tv_usec * 1e-6;	658	return tv.tv_sec + tv.tv_usec * 1e-6;
469	#endif
470	}	659	}
		660	#endif
471		661
472	ev_tstamp inline_size	662	inline_size ev_tstamp
473	get_clock (void)	663	get_clock (void)
474	{	664	{
475	#if EV_USE_MONOTONIC	665	#if EV_USE_MONOTONIC
476	if (expect_true (have_monotonic))	666	if (expect_true (have_monotonic))
477	{	667	{
…		…
510	struct timeval tv;	700	struct timeval tv;
511		701
512	tv.tv_sec = (time_t)delay;	702	tv.tv_sec = (time_t)delay;
513	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	703	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
514		704
		705	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		706	/* something not guaranteed by newer posix versions, but guaranteed */
		707	/* by older ones */
515	select (0, 0, 0, 0, &tv);	708	select (0, 0, 0, 0, &tv);
516	#endif	709	#endif
517	}	710	}
518	}	711	}
519		712
520	/*****************************************************************************/	713	/*****************************************************************************/
521		714
522	int inline_size	715	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
		716
		717	/* find a suitable new size for the given array, */
		718	/* hopefully by rounding to a ncie-to-malloc size */
		719	inline_size int
523	array_nextsize (int elem, int cur, int cnt)	720	array_nextsize (int elem, int cur, int cnt)
524	{	721	{
525	int ncur = cur + 1;	722	int ncur = cur + 1;
526		723
527	do	724	do
528	ncur <<= 1;	725	ncur <<= 1;
529	while (cnt > ncur);	726	while (cnt > ncur);
530		727
531	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */	728	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
532	if (elem * ncur > 4096)	729	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
533	{	730	{
534	ncur *= elem;	731	ncur *= elem;
535	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;	732	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
536	ncur = ncur - sizeof (void *) * 4;	733	ncur = ncur - sizeof (void *) * 4;
537	ncur /= elem;	734	ncur /= elem;
538	}	735	}
539		736
540	return ncur;	737	return ncur;
…		…
544	array_realloc (int elem, void *base, int *cur, int cnt)	741	array_realloc (int elem, void *base, int *cur, int cnt)
545	{	742	{
546	*cur = array_nextsize (elem, *cur, cnt);	743	*cur = array_nextsize (elem, *cur, cnt);
547	return ev_realloc (base, elem * *cur);	744	return ev_realloc (base, elem * *cur);
548	}	745	}
		746
		747	#define array_init_zero(base,count) \
		748	memset ((void *)(base), 0, sizeof (*(base)) * (count))
549		749
550	#define array_needsize(type,base,cur,cnt,init) \	750	#define array_needsize(type,base,cur,cnt,init) \
551	if (expect_false ((cnt) > (cur))) \	751	if (expect_false ((cnt) > (cur))) \
552	{ \	752	{ \
553	int ocur_ = (cur); \	753	int ocur_ = (cur); \
…		…
565	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	765	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
566	}	766	}
567	#endif	767	#endif
568		768
569	#define array_free(stem, idx) \	769	#define array_free(stem, idx) \
570	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	770	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
571		771
572	/*****************************************************************************/	772	/*****************************************************************************/
		773
		774	/* dummy callback for pending events */
		775	static void noinline
		776	pendingcb (EV_P_ ev_prepare *w, int revents)
		777	{
		778	}
573		779
574	void noinline	780	void noinline
575	ev_feed_event (EV_P_ void *w, int revents)	781	ev_feed_event (EV_P_ void *w, int revents)
576	{	782	{
577	W w_ = (W)w;	783	W w_ = (W)w;
…		…
586	pendings [pri][w_->pending - 1].w = w_;	792	pendings [pri][w_->pending - 1].w = w_;
587	pendings [pri][w_->pending - 1].events = revents;	793	pendings [pri][w_->pending - 1].events = revents;
588	}	794	}
589	}	795	}
590		796
591	void inline_speed	797	inline_speed void
		798	feed_reverse (EV_P_ W w)
		799	{
		800	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		801	rfeeds [rfeedcnt++] = w;
		802	}
		803
		804	inline_size void
		805	feed_reverse_done (EV_P_ int revents)
		806	{
		807	do
		808	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		809	while (rfeedcnt);
		810	}
		811
		812	inline_speed void
592	queue_events (EV_P_ W *events, int eventcnt, int type)	813	queue_events (EV_P_ W *events, int eventcnt, int type)
593	{	814	{
594	int i;	815	int i;
595		816
596	for (i = 0; i < eventcnt; ++i)	817	for (i = 0; i < eventcnt; ++i)
597	ev_feed_event (EV_A_ events [i], type);	818	ev_feed_event (EV_A_ events [i], type);
598	}	819	}
599		820
600	/*****************************************************************************/	821	/*****************************************************************************/
601		822
602	void inline_size	823	inline_speed void
603	anfds_init (ANFD *base, int count)
604	{
605	while (count--)
606	{
607	base->head = 0;
608	base->events = EV_NONE;
609	base->reify = 0;
610
611	++base;
612	}
613	}
614
615	void inline_speed
616	fd_event (EV_P_ int fd, int revents)	824	fd_event_nc (EV_P_ int fd, int revents)
617	{	825	{
618	ANFD *anfd = anfds + fd;	826	ANFD *anfd = anfds + fd;
619	ev_io *w;	827	ev_io *w;
620		828
621	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	829	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
625	if (ev)	833	if (ev)
626	ev_feed_event (EV_A_ (W)w, ev);	834	ev_feed_event (EV_A_ (W)w, ev);
627	}	835	}
628	}	836	}
629		837
		838	/* do not submit kernel events for fds that have reify set */
		839	/* because that means they changed while we were polling for new events */
		840	inline_speed void
		841	fd_event (EV_P_ int fd, int revents)
		842	{
		843	ANFD *anfd = anfds + fd;
		844
		845	if (expect_true (!anfd->reify))
		846	fd_event_nc (EV_A_ fd, revents);
		847	}
		848
630	void	849	void
631	ev_feed_fd_event (EV_P_ int fd, int revents)	850	ev_feed_fd_event (EV_P_ int fd, int revents)
632	{	851	{
633	if (fd >= 0 && fd < anfdmax)	852	if (fd >= 0 && fd < anfdmax)
634	fd_event (EV_A_ fd, revents);	853	fd_event_nc (EV_A_ fd, revents);
635	}	854	}
636		855
637	void inline_size	856	/* make sure the external fd watch events are in-sync */
		857	/* with the kernel/libev internal state */
		858	inline_size void
638	fd_reify (EV_P)	859	fd_reify (EV_P)
639	{	860	{
640	int i;	861	int i;
641		862
642	for (i = 0; i < fdchangecnt; ++i)	863	for (i = 0; i < fdchangecnt; ++i)
…		…
651	events |= (unsigned char)w->events;	872	events |= (unsigned char)w->events;
652		873
653	#if EV_SELECT_IS_WINSOCKET	874	#if EV_SELECT_IS_WINSOCKET
654	if (events)	875	if (events)
655	{	876	{
656	unsigned long argp;	877	unsigned long arg;
657	#ifdef EV_FD_TO_WIN32_HANDLE	878	#ifdef EV_FD_TO_WIN32_HANDLE
658	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	879	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
659	#else	880	#else
660	anfd->handle = _get_osfhandle (fd);	881	anfd->handle = _get_osfhandle (fd);
661	#endif	882	#endif
662	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	883	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
663	}	884	}
664	#endif	885	#endif
665		886
666	{	887	{
667	unsigned char o_events = anfd->events;	888	unsigned char o_events = anfd->events;
668	unsigned char o_reify = anfd->reify;	889	unsigned char o_reify = anfd->reify;
669		890
670	anfd->reify = 0;	891	anfd->reify = 0;
671	anfd->events = events;	892	anfd->events = events;
672		893
673	if (o_events != events || o_reify & EV_IOFDSET)	894	if (o_events != events || o_reify & EV__IOFDSET)
674	backend_modify (EV_A_ fd, o_events, events);	895	backend_modify (EV_A_ fd, o_events, events);
675	}	896	}
676	}	897	}
677		898
678	fdchangecnt = 0;	899	fdchangecnt = 0;
679	}	900	}
680		901
681	void inline_size	902	/* something about the given fd changed */
		903	inline_size void
682	fd_change (EV_P_ int fd, int flags)	904	fd_change (EV_P_ int fd, int flags)
683	{	905	{
684	unsigned char reify = anfds [fd].reify;	906	unsigned char reify = anfds [fd].reify;
685	anfds [fd].reify |= flags;	907	anfds [fd].reify |= flags;
686		908
…		…
690	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	912	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
691	fdchanges [fdchangecnt - 1] = fd;	913	fdchanges [fdchangecnt - 1] = fd;
692	}	914	}
693	}	915	}
694		916
695	void inline_speed	917	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		918	inline_speed void
696	fd_kill (EV_P_ int fd)	919	fd_kill (EV_P_ int fd)
697	{	920	{
698	ev_io *w;	921	ev_io *w;
699		922
700	while ((w = (ev_io *)anfds [fd].head))	923	while ((w = (ev_io *)anfds [fd].head))
…		…
702	ev_io_stop (EV_A_ w);	925	ev_io_stop (EV_A_ w);
703	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	926	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
704	}	927	}
705	}	928	}
706		929
707	int inline_size	930	/* check whether the given fd is atcually valid, for error recovery */
		931	inline_size int
708	fd_valid (int fd)	932	fd_valid (int fd)
709	{	933	{
710	#ifdef _WIN32	934	#ifdef _WIN32
711	return _get_osfhandle (fd) != -1;	935	return _get_osfhandle (fd) != -1;
712	#else	936	#else
…		…
720	{	944	{
721	int fd;	945	int fd;
722		946
723	for (fd = 0; fd < anfdmax; ++fd)	947	for (fd = 0; fd < anfdmax; ++fd)
724	if (anfds [fd].events)	948	if (anfds [fd].events)
725	if (!fd_valid (fd) == -1 && errno == EBADF)	949	if (!fd_valid (fd) && errno == EBADF)
726	fd_kill (EV_A_ fd);	950	fd_kill (EV_A_ fd);
727	}	951	}
728		952
729	/* called on ENOMEM in select/poll to kill some fds and retry */	953	/* called on ENOMEM in select/poll to kill some fds and retry */
730	static void noinline	954	static void noinline
…		…
748		972
749	for (fd = 0; fd < anfdmax; ++fd)	973	for (fd = 0; fd < anfdmax; ++fd)
750	if (anfds [fd].events)	974	if (anfds [fd].events)
751	{	975	{
752	anfds [fd].events = 0;	976	anfds [fd].events = 0;
		977	anfds [fd].emask = 0;
753	fd_change (EV_A_ fd, EV_IOFDSET | 1);	978	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
754	}	979	}
755	}	980	}
756		981
757	/*****************************************************************************/	982	/*****************************************************************************/
758		983
759	void inline_speed	984	/*
760	upheap (WT *heap, int k)	985	* the heap functions want a real array index. array index 0 uis guaranteed to not
761	{	986	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
762	WT w = heap [k];	987	* the branching factor of the d-tree.
		988	*/
763		989
764	while (k)	990	/*
765	{	991	* at the moment we allow libev the luxury of two heaps,
766	int p = (k - 1) >> 1;	992	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
		993	* which is more cache-efficient.
		994	* the difference is about 5% with 50000+ watchers.
		995	*/
		996	#if EV_USE_4HEAP
767		997
768	if (heap [p]->at <= w->at)	998	#define DHEAP 4
		999	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		1000	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		1001	#define UPHEAP_DONE(p,k) ((p) == (k))
		1002
		1003	/* away from the root */
		1004	inline_speed void
		1005	downheap (ANHE *heap, int N, int k)
		1006	{
		1007	ANHE he = heap [k];
		1008	ANHE *E = heap + N + HEAP0;
		1009
		1010	for (;;)
		1011	{
		1012	ev_tstamp minat;
		1013	ANHE *minpos;
		1014	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
		1015
		1016	/* find minimum child */
		1017	if (expect_true (pos + DHEAP - 1 < E))
		1018	{
		1019	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		1020	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		1021	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		1022	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		1023	}
		1024	else if (pos < E)
		1025	{
		1026	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		1027	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		1028	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		1029	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		1030	}
		1031	else
769	break;	1032	break;
770		1033
		1034	if (ANHE_at (he) <= minat)
		1035	break;
		1036
		1037	heap [k] = *minpos;
		1038	ev_active (ANHE_w (*minpos)) = k;
		1039
		1040	k = minpos - heap;
		1041	}
		1042
		1043	heap [k] = he;
		1044	ev_active (ANHE_w (he)) = k;
		1045	}
		1046
		1047	#else /* 4HEAP */
		1048
		1049	#define HEAP0 1
		1050	#define HPARENT(k) ((k) >> 1)
		1051	#define UPHEAP_DONE(p,k) (!(p))
		1052
		1053	/* away from the root */
		1054	inline_speed void
		1055	downheap (ANHE *heap, int N, int k)
		1056	{
		1057	ANHE he = heap [k];
		1058
		1059	for (;;)
		1060	{
		1061	int c = k << 1;
		1062
		1063	if (c > N + HEAP0 - 1)
		1064	break;
		1065
		1066	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
		1067	? 1 : 0;
		1068
		1069	if (ANHE_at (he) <= ANHE_at (heap [c]))
		1070	break;
		1071
		1072	heap [k] = heap [c];
		1073	ev_active (ANHE_w (heap [k])) = k;
		1074
		1075	k = c;
		1076	}
		1077
		1078	heap [k] = he;
		1079	ev_active (ANHE_w (he)) = k;
		1080	}
		1081	#endif
		1082
		1083	/* towards the root */
		1084	inline_speed void
		1085	upheap (ANHE *heap, int k)
		1086	{
		1087	ANHE he = heap [k];
		1088
		1089	for (;;)
		1090	{
		1091	int p = HPARENT (k);
		1092
		1093	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		1094	break;
		1095
771	heap [k] = heap [p];	1096	heap [k] = heap [p];
772	((W)heap [k])->active = k + 1;	1097	ev_active (ANHE_w (heap [k])) = k;
773	k = p;	1098	k = p;
774	}	1099	}
775		1100
776	heap [k] = w;	1101	heap [k] = he;
777	((W)heap [k])->active = k + 1;	1102	ev_active (ANHE_w (he)) = k;
778	}	1103	}
779		1104
780	void inline_speed	1105	/* move an element suitably so it is in a correct place */
781	downheap (WT *heap, int N, int k)	1106	inline_size void
782	{
783	WT w = heap [k];
784
785	for (;;)
786	{
787	int c = (k << 1) + 1;
788
789	if (c >= N)
790	break;
791
792	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
793	? 1 : 0;
794
795	if (w->at <= heap [c]->at)
796	break;
797
798	heap [k] = heap [c];
799	((W)heap [k])->active = k + 1;
800
801	k = c;
802	}
803
804	heap [k] = w;
805	((W)heap [k])->active = k + 1;
806	}
807
808	void inline_size
809	adjustheap (WT *heap, int N, int k)	1107	adjustheap (ANHE *heap, int N, int k)
810	{	1108	{
		1109	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
811	upheap (heap, k);	1110	upheap (heap, k);
		1111	else
812	downheap (heap, N, k);	1112	downheap (heap, N, k);
		1113	}
		1114
		1115	/* rebuild the heap: this function is used only once and executed rarely */
		1116	inline_size void
		1117	reheap (ANHE *heap, int N)
		1118	{
		1119	int i;
		1120
		1121	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		1122	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		1123	for (i = 0; i < N; ++i)
		1124	upheap (heap, i + HEAP0);
813	}	1125	}
814		1126
815	/*****************************************************************************/	1127	/*****************************************************************************/
816		1128
		1129	/* associate signal watchers to a signal signal */
817	typedef struct	1130	typedef struct
818	{	1131	{
		1132	#if EV_MULTIPLICITY
		1133	EV_P;
		1134	#endif
819	WL head;	1135	WL head;
820	EV_ATOMIC_T gotsig;	1136	EV_ATOMIC_T gotsig;
821	} ANSIG;	1137	} ANSIG;
822		1138
823	static ANSIG *signals;	1139	static ANSIG signals [EV_NSIG - 1];
824	static int signalmax;
825
826	static EV_ATOMIC_T gotsig;	1140	static EV_ATOMIC_T gotsig;
827		1141
828	void inline_size
829	signals_init (ANSIG *base, int count)
830	{
831	while (count--)
832	{
833	base->head = 0;
834	base->gotsig = 0;
835
836	++base;
837	}
838	}
839
840	/*****************************************************************************/	1142	/*****************************************************************************/
841		1143
842	void inline_speed	1144	/* used to prepare libev internal fd's */
		1145	/* this is not fork-safe */
		1146	inline_speed void
843	fd_intern (int fd)	1147	fd_intern (int fd)
844	{	1148	{
845	#ifdef _WIN32	1149	#ifdef _WIN32
846	int arg = 1;	1150	unsigned long arg = 1;
847	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1151	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
848	#else	1152	#else
849	fcntl (fd, F_SETFD, FD_CLOEXEC);	1153	fcntl (fd, F_SETFD, FD_CLOEXEC);
850	fcntl (fd, F_SETFL, O_NONBLOCK);	1154	fcntl (fd, F_SETFL, O_NONBLOCK);
851	#endif	1155	#endif
852	}	1156	}
853		1157
854	static void noinline	1158	static void noinline
855	evpipe_init (EV_P)	1159	evpipe_init (EV_P)
856	{	1160	{
857	if (!ev_is_active (&pipeev))	1161	if (!ev_is_active (&pipe_w))
858	{	1162	{
859	#if EV_USE_EVENTFD	1163	#if EV_USE_EVENTFD
		1164	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1165	if (evfd < 0 && errno == EINVAL)
860	if ((evfd = eventfd (0, 0)) >= 0)	1166	evfd = eventfd (0, 0);
		1167
		1168	if (evfd >= 0)
861	{	1169	{
862	evpipe [0] = -1;	1170	evpipe [0] = -1;
863	fd_intern (evfd);	1171	fd_intern (evfd); /* doing it twice doesn't hurt */
864	ev_io_set (&pipeev, evfd, EV_READ);	1172	ev_io_set (&pipe_w, evfd, EV_READ);
865	}	1173	}
866	else	1174	else
867	#endif	1175	#endif
868	{	1176	{
869	while (pipe (evpipe))	1177	while (pipe (evpipe))
870	syserr ("(libev) error creating signal/async pipe");	1178	ev_syserr ("(libev) error creating signal/async pipe");
871		1179
872	fd_intern (evpipe [0]);	1180	fd_intern (evpipe [0]);
873	fd_intern (evpipe [1]);	1181	fd_intern (evpipe [1]);
874	ev_io_set (&pipeev, evpipe [0], EV_READ);	1182	ev_io_set (&pipe_w, evpipe [0], EV_READ);
875	}	1183	}
876		1184
877	ev_io_start (EV_A_ &pipeev);	1185	ev_io_start (EV_A_ &pipe_w);
878	ev_unref (EV_A); /* watcher should not keep loop alive */	1186	ev_unref (EV_A); /* watcher should not keep loop alive */
879	}	1187	}
880	}	1188	}
881		1189
882	void inline_size	1190	inline_size void
883	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1191	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
884	{	1192	{
885	if (!*flag)	1193	if (!*flag)
886	{	1194	{
887	int old_errno = errno; /* save errno because write might clobber it */	1195	int old_errno = errno; /* save errno because write might clobber it */
…		…
900		1208
901	errno = old_errno;	1209	errno = old_errno;
902	}	1210	}
903	}	1211	}
904		1212
		1213	/* called whenever the libev signal pipe */
		1214	/* got some events (signal, async) */
905	static void	1215	static void
906	pipecb (EV_P_ ev_io *iow, int revents)	1216	pipecb (EV_P_ ev_io *iow, int revents)
907	{	1217	{
908	#if EV_USE_EVENTFD	1218	#if EV_USE_EVENTFD
909	if (evfd >= 0)	1219	if (evfd >= 0)
910	{	1220	{
911	uint64_t counter = 1;	1221	uint64_t counter;
912	read (evfd, &counter, sizeof (uint64_t));	1222	read (evfd, &counter, sizeof (uint64_t));
913	}	1223	}
914	else	1224	else
915	#endif	1225	#endif
916	{	1226	{
…		…
921	if (gotsig && ev_is_default_loop (EV_A))	1231	if (gotsig && ev_is_default_loop (EV_A))
922	{	1232	{
923	int signum;	1233	int signum;
924	gotsig = 0;	1234	gotsig = 0;
925		1235
926	for (signum = signalmax; signum--; )	1236	for (signum = EV_NSIG - 1; signum--; )
927	if (signals [signum].gotsig)	1237	if (signals [signum].gotsig)
928	ev_feed_signal_event (EV_A_ signum + 1);	1238	ev_feed_signal_event (EV_A_ signum + 1);
929	}	1239	}
930		1240
931	#if EV_ASYNC_ENABLE	1241	#if EV_ASYNC_ENABLE
…		…
948		1258
949	static void	1259	static void
950	ev_sighandler (int signum)	1260	ev_sighandler (int signum)
951	{	1261	{
952	#if EV_MULTIPLICITY	1262	#if EV_MULTIPLICITY
953	struct ev_loop *loop = &default_loop_struct;	1263	EV_P = signals [signum - 1].loop;
954	#endif	1264	#endif
955		1265
956	#if _WIN32	1266	#if _WIN32
957	signal (signum, ev_sighandler);	1267	signal (signum, ev_sighandler);
958	#endif	1268	#endif
…		…
965	ev_feed_signal_event (EV_P_ int signum)	1275	ev_feed_signal_event (EV_P_ int signum)
966	{	1276	{
967	WL w;	1277	WL w;
968		1278
969	#if EV_MULTIPLICITY	1279	#if EV_MULTIPLICITY
970	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1280	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
971	#endif	1281	#endif
		1282
		1283	if (signum <= 0 || signum > EV_NSIG)
		1284	return;
972		1285
973	--signum;	1286	--signum;
974
975	if (signum < 0 || signum >= signalmax)
976	return;
977		1287
978	signals [signum].gotsig = 0;	1288	signals [signum].gotsig = 0;
979		1289
980	for (w = signals [signum].head; w; w = w->next)	1290	for (w = signals [signum].head; w; w = w->next)
981	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1291	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
982	}	1292	}
983		1293
		1294	#if EV_USE_SIGNALFD
		1295	static void
		1296	sigfdcb (EV_P_ ev_io *iow, int revents)
		1297	{
		1298	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1299
		1300	for (;;)
		1301	{
		1302	ssize_t res = read (sigfd, si, sizeof (si));
		1303
		1304	/* not ISO-C, as res might be -1, but works with SuS */
		1305	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1306	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1307
		1308	if (res < (ssize_t)sizeof (si))
		1309	break;
		1310	}
		1311	}
		1312	#endif
		1313
984	/*****************************************************************************/	1314	/*****************************************************************************/
985		1315
986	static WL childs [EV_PID_HASHSIZE];	1316	static WL childs [EV_PID_HASHSIZE];
987		1317
988	#ifndef _WIN32	1318	#ifndef _WIN32
…		…
991		1321
992	#ifndef WIFCONTINUED	1322	#ifndef WIFCONTINUED
993	# define WIFCONTINUED(status) 0	1323	# define WIFCONTINUED(status) 0
994	#endif	1324	#endif
995		1325
996	void inline_speed	1326	/* handle a single child status event */
		1327	inline_speed void
997	child_reap (EV_P_ int chain, int pid, int status)	1328	child_reap (EV_P_ int chain, int pid, int status)
998	{	1329	{
999	ev_child *w;	1330	ev_child *w;
1000	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1331	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1001		1332
…		…
1014		1345
1015	#ifndef WCONTINUED	1346	#ifndef WCONTINUED
1016	# define WCONTINUED 0	1347	# define WCONTINUED 0
1017	#endif	1348	#endif
1018		1349
		1350	/* called on sigchld etc., calls waitpid */
1019	static void	1351	static void
1020	childcb (EV_P_ ev_signal *sw, int revents)	1352	childcb (EV_P_ ev_signal *sw, int revents)
1021	{	1353	{
1022	int pid, status;	1354	int pid, status;
1023		1355
…		…
1104	/* kqueue is borked on everything but netbsd apparently */	1436	/* kqueue is borked on everything but netbsd apparently */
1105	/* it usually doesn't work correctly on anything but sockets and pipes */	1437	/* it usually doesn't work correctly on anything but sockets and pipes */
1106	flags &= ~EVBACKEND_KQUEUE;	1438	flags &= ~EVBACKEND_KQUEUE;
1107	#endif	1439	#endif
1108	#ifdef __APPLE__	1440	#ifdef __APPLE__
1109	// flags &= ~EVBACKEND_KQUEUE; for documentation	1441	/* only select works correctly on that "unix-certified" platform */
1110	flags &= ~EVBACKEND_POLL;	1442	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1443	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1111	#endif	1444	#endif
1112		1445
1113	return flags;	1446	return flags;
1114	}	1447	}
1115		1448
…		…
1129	ev_backend (EV_P)	1462	ev_backend (EV_P)
1130	{	1463	{
1131	return backend;	1464	return backend;
1132	}	1465	}
1133		1466
		1467	#if EV_MINIMAL < 2
1134	unsigned int	1468	unsigned int
1135	ev_loop_count (EV_P)	1469	ev_loop_count (EV_P)
1136	{	1470	{
1137	return loop_count;	1471	return loop_count;
1138	}	1472	}
1139		1473
		1474	unsigned int
		1475	ev_loop_depth (EV_P)
		1476	{
		1477	return loop_depth;
		1478	}
		1479
1140	void	1480	void
1141	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1481	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1142	{	1482	{
1143	io_blocktime = interval;	1483	io_blocktime = interval;
1144	}	1484	}
…		…
1147	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1487	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1148	{	1488	{
1149	timeout_blocktime = interval;	1489	timeout_blocktime = interval;
1150	}	1490	}
1151		1491
		1492	void
		1493	ev_set_userdata (EV_P_ void *data)
		1494	{
		1495	userdata = data;
		1496	}
		1497
		1498	void *
		1499	ev_userdata (EV_P)
		1500	{
		1501	return userdata;
		1502	}
		1503
		1504	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1505	{
		1506	invoke_cb = invoke_pending_cb;
		1507	}
		1508
		1509	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1510	{
		1511	release_cb = release;
		1512	acquire_cb = acquire;
		1513	}
		1514	#endif
		1515
		1516	/* initialise a loop structure, must be zero-initialised */
1152	static void noinline	1517	static void noinline
1153	loop_init (EV_P_ unsigned int flags)	1518	loop_init (EV_P_ unsigned int flags)
1154	{	1519	{
1155	if (!backend)	1520	if (!backend)
1156	{	1521	{
		1522	#if EV_USE_REALTIME
		1523	if (!have_realtime)
		1524	{
		1525	struct timespec ts;
		1526
		1527	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1528	have_realtime = 1;
		1529	}
		1530	#endif
		1531
1157	#if EV_USE_MONOTONIC	1532	#if EV_USE_MONOTONIC
		1533	if (!have_monotonic)
1158	{	1534	{
1159	struct timespec ts;	1535	struct timespec ts;
		1536
1160	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1537	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1161	have_monotonic = 1;	1538	have_monotonic = 1;
1162	}	1539	}
1163	#endif	1540	#endif
		1541
		1542	/* pid check not overridable via env */
		1543	#ifndef _WIN32
		1544	if (flags & EVFLAG_FORKCHECK)
		1545	curpid = getpid ();
		1546	#endif
		1547
		1548	if (!(flags & EVFLAG_NOENV)
		1549	&& !enable_secure ()
		1550	&& getenv ("LIBEV_FLAGS"))
		1551	flags = atoi (getenv ("LIBEV_FLAGS"));
1164		1552
1165	ev_rt_now = ev_time ();	1553	ev_rt_now = ev_time ();
1166	mn_now = get_clock ();	1554	mn_now = get_clock ();
1167	now_floor = mn_now;	1555	now_floor = mn_now;
1168	rtmn_diff = ev_rt_now - mn_now;	1556	rtmn_diff = ev_rt_now - mn_now;
		1557	#if EV_MINIMAL < 2
		1558	invoke_cb = ev_invoke_pending;
		1559	#endif
1169		1560
1170	io_blocktime = 0.;	1561	io_blocktime = 0.;
1171	timeout_blocktime = 0.;	1562	timeout_blocktime = 0.;
1172	backend = 0;	1563	backend = 0;
1173	backend_fd = -1;	1564	backend_fd = -1;
1174	gotasync = 0;	1565	gotasync = 0;
1175	#if EV_USE_INOTIFY	1566	#if EV_USE_INOTIFY
1176	fs_fd = -2;	1567	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1177	#endif	1568	#endif
1178		1569	#if EV_USE_SIGNALFD
1179	/* pid check not overridable via env */	1570	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1180	#ifndef _WIN32
1181	if (flags & EVFLAG_FORKCHECK)
1182	curpid = getpid ();
1183	#endif	1571	#endif
1184		1572
1185	if (!(flags & EVFLAG_NOENV)
1186	&& !enable_secure ()
1187	&& getenv ("LIBEV_FLAGS"))
1188	flags = atoi (getenv ("LIBEV_FLAGS"));
1189
1190	if (!(flags & 0x0000ffffUL))	1573	if (!(flags & 0x0000ffffU))
1191	flags |= ev_recommended_backends ();	1574	flags |= ev_recommended_backends ();
1192		1575
1193	#if EV_USE_PORT	1576	#if EV_USE_PORT
1194	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1577	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1195	#endif	1578	#endif
…		…
1204	#endif	1587	#endif
1205	#if EV_USE_SELECT	1588	#if EV_USE_SELECT
1206	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1589	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1207	#endif	1590	#endif
1208		1591
		1592	ev_prepare_init (&pending_w, pendingcb);
		1593
1209	ev_init (&pipeev, pipecb);	1594	ev_init (&pipe_w, pipecb);
1210	ev_set_priority (&pipeev, EV_MAXPRI);	1595	ev_set_priority (&pipe_w, EV_MAXPRI);
1211	}	1596	}
1212	}	1597	}
1213		1598
		1599	/* free up a loop structure */
1214	static void noinline	1600	static void noinline
1215	loop_destroy (EV_P)	1601	loop_destroy (EV_P)
1216	{	1602	{
1217	int i;	1603	int i;
1218		1604
1219	if (ev_is_active (&pipeev))	1605	if (ev_is_active (&pipe_w))
1220	{	1606	{
1221	ev_ref (EV_A); /* signal watcher */	1607	/*ev_ref (EV_A);*/
1222	ev_io_stop (EV_A_ &pipeev);	1608	/*ev_io_stop (EV_A_ &pipe_w);*/
1223		1609
1224	#if EV_USE_EVENTFD	1610	#if EV_USE_EVENTFD
1225	if (evfd >= 0)	1611	if (evfd >= 0)
1226	close (evfd);	1612	close (evfd);
1227	#endif	1613	#endif
…		…
1231	close (evpipe [0]);	1617	close (evpipe [0]);
1232	close (evpipe [1]);	1618	close (evpipe [1]);
1233	}	1619	}
1234	}	1620	}
1235		1621
		1622	#if EV_USE_SIGNALFD
		1623	if (ev_is_active (&sigfd_w))
		1624	{
		1625	/*ev_ref (EV_A);*/
		1626	/*ev_io_stop (EV_A_ &sigfd_w);*/
		1627
		1628	close (sigfd);
		1629	}
		1630	#endif
		1631
1236	#if EV_USE_INOTIFY	1632	#if EV_USE_INOTIFY
1237	if (fs_fd >= 0)	1633	if (fs_fd >= 0)
1238	close (fs_fd);	1634	close (fs_fd);
1239	#endif	1635	#endif
1240		1636
…		…
1263	#if EV_IDLE_ENABLE	1659	#if EV_IDLE_ENABLE
1264	array_free (idle, [i]);	1660	array_free (idle, [i]);
1265	#endif	1661	#endif
1266	}	1662	}
1267		1663
1268	ev_free (anfds); anfdmax = 0;	1664	ev_free (anfds); anfds = 0; anfdmax = 0;
1269		1665
1270	/* have to use the microsoft-never-gets-it-right macro */	1666	/* have to use the microsoft-never-gets-it-right macro */
		1667	array_free (rfeed, EMPTY);
1271	array_free (fdchange, EMPTY);	1668	array_free (fdchange, EMPTY);
1272	array_free (timer, EMPTY);	1669	array_free (timer, EMPTY);
1273	#if EV_PERIODIC_ENABLE	1670	#if EV_PERIODIC_ENABLE
1274	array_free (periodic, EMPTY);	1671	array_free (periodic, EMPTY);
1275	#endif	1672	#endif
…		…
1283	#endif	1680	#endif
1284		1681
1285	backend = 0;	1682	backend = 0;
1286	}	1683	}
1287		1684
		1685	#if EV_USE_INOTIFY
1288	void inline_size infy_fork (EV_P);	1686	inline_size void infy_fork (EV_P);
		1687	#endif
1289		1688
1290	void inline_size	1689	inline_size void
1291	loop_fork (EV_P)	1690	loop_fork (EV_P)
1292	{	1691	{
1293	#if EV_USE_PORT	1692	#if EV_USE_PORT
1294	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1693	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1295	#endif	1694	#endif
…		…
1301	#endif	1700	#endif
1302	#if EV_USE_INOTIFY	1701	#if EV_USE_INOTIFY
1303	infy_fork (EV_A);	1702	infy_fork (EV_A);
1304	#endif	1703	#endif
1305		1704
1306	if (ev_is_active (&pipeev))	1705	if (ev_is_active (&pipe_w))
1307	{	1706	{
1308	/* this "locks" the handlers against writing to the pipe */	1707	/* this "locks" the handlers against writing to the pipe */
1309	/* while we modify the fd vars */	1708	/* while we modify the fd vars */
1310	gotsig = 1;	1709	gotsig = 1;
1311	#if EV_ASYNC_ENABLE	1710	#if EV_ASYNC_ENABLE
1312	gotasync = 1;	1711	gotasync = 1;
1313	#endif	1712	#endif
1314		1713
1315	ev_ref (EV_A);	1714	ev_ref (EV_A);
1316	ev_io_stop (EV_A_ &pipeev);	1715	ev_io_stop (EV_A_ &pipe_w);
1317		1716
1318	#if EV_USE_EVENTFD	1717	#if EV_USE_EVENTFD
1319	if (evfd >= 0)	1718	if (evfd >= 0)
1320	close (evfd);	1719	close (evfd);
1321	#endif	1720	#endif
…		…
1326	close (evpipe [1]);	1725	close (evpipe [1]);
1327	}	1726	}
1328		1727
1329	evpipe_init (EV_A);	1728	evpipe_init (EV_A);
1330	/* now iterate over everything, in case we missed something */	1729	/* now iterate over everything, in case we missed something */
1331	pipecb (EV_A_ &pipeev, EV_READ);	1730	pipecb (EV_A_ &pipe_w, EV_READ);
1332	}	1731	}
1333		1732
1334	postfork = 0;	1733	postfork = 0;
1335	}	1734	}
1336		1735
1337	#if EV_MULTIPLICITY	1736	#if EV_MULTIPLICITY
		1737
1338	struct ev_loop *	1738	struct ev_loop *
1339	ev_loop_new (unsigned int flags)	1739	ev_loop_new (unsigned int flags)
1340	{	1740	{
1341	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1741	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1342		1742
1343	memset (loop, 0, sizeof (struct ev_loop));	1743	memset (EV_A, 0, sizeof (struct ev_loop));
1344
1345	loop_init (EV_A_ flags);	1744	loop_init (EV_A_ flags);
1346		1745
1347	if (ev_backend (EV_A))	1746	if (ev_backend (EV_A))
1348	return loop;	1747	return EV_A;
1349		1748
1350	return 0;	1749	return 0;
1351	}	1750	}
1352		1751
1353	void	1752	void
…		…
1360	void	1759	void
1361	ev_loop_fork (EV_P)	1760	ev_loop_fork (EV_P)
1362	{	1761	{
1363	postfork = 1; /* must be in line with ev_default_fork */	1762	postfork = 1; /* must be in line with ev_default_fork */
1364	}	1763	}
		1764	#endif /* multiplicity */
1365		1765
		1766	#if EV_VERIFY
		1767	static void noinline
		1768	verify_watcher (EV_P_ W w)
		1769	{
		1770	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1771
		1772	if (w->pending)
		1773	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1774	}
		1775
		1776	static void noinline
		1777	verify_heap (EV_P_ ANHE *heap, int N)
		1778	{
		1779	int i;
		1780
		1781	for (i = HEAP0; i < N + HEAP0; ++i)
		1782	{
		1783	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1784	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1785	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1786
		1787	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1788	}
		1789	}
		1790
		1791	static void noinline
		1792	array_verify (EV_P_ W *ws, int cnt)
		1793	{
		1794	while (cnt--)
		1795	{
		1796	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1797	verify_watcher (EV_A_ ws [cnt]);
		1798	}
		1799	}
		1800	#endif
		1801
		1802	#if EV_MINIMAL < 2
		1803	void
		1804	ev_loop_verify (EV_P)
		1805	{
		1806	#if EV_VERIFY
		1807	int i;
		1808	WL w;
		1809
		1810	assert (activecnt >= -1);
		1811
		1812	assert (fdchangemax >= fdchangecnt);
		1813	for (i = 0; i < fdchangecnt; ++i)
		1814	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1815
		1816	assert (anfdmax >= 0);
		1817	for (i = 0; i < anfdmax; ++i)
		1818	for (w = anfds [i].head; w; w = w->next)
		1819	{
		1820	verify_watcher (EV_A_ (W)w);
		1821	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1822	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1823	}
		1824
		1825	assert (timermax >= timercnt);
		1826	verify_heap (EV_A_ timers, timercnt);
		1827
		1828	#if EV_PERIODIC_ENABLE
		1829	assert (periodicmax >= periodiccnt);
		1830	verify_heap (EV_A_ periodics, periodiccnt);
		1831	#endif
		1832
		1833	for (i = NUMPRI; i--; )
		1834	{
		1835	assert (pendingmax [i] >= pendingcnt [i]);
		1836	#if EV_IDLE_ENABLE
		1837	assert (idleall >= 0);
		1838	assert (idlemax [i] >= idlecnt [i]);
		1839	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1840	#endif
		1841	}
		1842
		1843	#if EV_FORK_ENABLE
		1844	assert (forkmax >= forkcnt);
		1845	array_verify (EV_A_ (W *)forks, forkcnt);
		1846	#endif
		1847
		1848	#if EV_ASYNC_ENABLE
		1849	assert (asyncmax >= asynccnt);
		1850	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1851	#endif
		1852
		1853	assert (preparemax >= preparecnt);
		1854	array_verify (EV_A_ (W *)prepares, preparecnt);
		1855
		1856	assert (checkmax >= checkcnt);
		1857	array_verify (EV_A_ (W *)checks, checkcnt);
		1858
		1859	# if 0
		1860	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1861	for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig)
		1862	# endif
		1863	#endif
		1864	}
1366	#endif	1865	#endif
1367		1866
1368	#if EV_MULTIPLICITY	1867	#if EV_MULTIPLICITY
1369	struct ev_loop *	1868	struct ev_loop *
1370	ev_default_loop_init (unsigned int flags)	1869	ev_default_loop_init (unsigned int flags)
…		…
1374	#endif	1873	#endif
1375	{	1874	{
1376	if (!ev_default_loop_ptr)	1875	if (!ev_default_loop_ptr)
1377	{	1876	{
1378	#if EV_MULTIPLICITY	1877	#if EV_MULTIPLICITY
1379	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1878	EV_P = ev_default_loop_ptr = &default_loop_struct;
1380	#else	1879	#else
1381	ev_default_loop_ptr = 1;	1880	ev_default_loop_ptr = 1;
1382	#endif	1881	#endif
1383		1882
1384	loop_init (EV_A_ flags);	1883	loop_init (EV_A_ flags);
…		…
1401		1900
1402	void	1901	void
1403	ev_default_destroy (void)	1902	ev_default_destroy (void)
1404	{	1903	{
1405	#if EV_MULTIPLICITY	1904	#if EV_MULTIPLICITY
1406	struct ev_loop *loop = ev_default_loop_ptr;	1905	EV_P = ev_default_loop_ptr;
1407	#endif	1906	#endif
		1907
		1908	ev_default_loop_ptr = 0;
1408		1909
1409	#ifndef _WIN32	1910	#ifndef _WIN32
1410	ev_ref (EV_A); /* child watcher */	1911	ev_ref (EV_A); /* child watcher */
1411	ev_signal_stop (EV_A_ &childev);	1912	ev_signal_stop (EV_A_ &childev);
1412	#endif	1913	#endif
…		…
1416		1917
1417	void	1918	void
1418	ev_default_fork (void)	1919	ev_default_fork (void)
1419	{	1920	{
1420	#if EV_MULTIPLICITY	1921	#if EV_MULTIPLICITY
1421	struct ev_loop *loop = ev_default_loop_ptr;	1922	EV_P = ev_default_loop_ptr;
1422	#endif	1923	#endif
1423		1924
1424	if (backend)
1425	postfork = 1; /* must be in line with ev_loop_fork */	1925	postfork = 1; /* must be in line with ev_loop_fork */
1426	}	1926	}
1427		1927
1428	/*****************************************************************************/	1928	/*****************************************************************************/
1429		1929
1430	void	1930	void
1431	ev_invoke (EV_P_ void *w, int revents)	1931	ev_invoke (EV_P_ void *w, int revents)
1432	{	1932	{
1433	EV_CB_INVOKE ((W)w, revents);	1933	EV_CB_INVOKE ((W)w, revents);
1434	}	1934	}
1435		1935
1436	void inline_speed	1936	unsigned int
1437	call_pending (EV_P)	1937	ev_pending_count (EV_P)
		1938	{
		1939	int pri;
		1940	unsigned int count = 0;
		1941
		1942	for (pri = NUMPRI; pri--; )
		1943	count += pendingcnt [pri];
		1944
		1945	return count;
		1946	}
		1947
		1948	void noinline
		1949	ev_invoke_pending (EV_P)
1438	{	1950	{
1439	int pri;	1951	int pri;
1440		1952
1441	for (pri = NUMPRI; pri--; )	1953	for (pri = NUMPRI; pri--; )
1442	while (pendingcnt [pri])	1954	while (pendingcnt [pri])
1443	{	1955	{
1444	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1956	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1445		1957
1446	if (expect_true (p->w))
1447	{
1448	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1958	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1959	/* ^ this is no longer true, as pending_w could be here */
1449		1960
1450	p->w->pending = 0;	1961	p->w->pending = 0;
1451	EV_CB_INVOKE (p->w, p->events);	1962	EV_CB_INVOKE (p->w, p->events);
1452	}	1963	EV_FREQUENT_CHECK;
1453	}	1964	}
1454	}	1965	}
1455		1966
1456	void inline_size
1457	timers_reify (EV_P)
1458	{
1459	while (timercnt && ((WT)timers [0])->at <= mn_now)
1460	{
1461	ev_timer *w = (ev_timer *)timers [0];
1462
1463	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1464
1465	/* first reschedule or stop timer */
1466	if (w->repeat)
1467	{
1468	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1469
1470	((WT)w)->at += w->repeat;
1471	if (((WT)w)->at < mn_now)
1472	((WT)w)->at = mn_now;
1473
1474	downheap (timers, timercnt, 0);
1475	}
1476	else
1477	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1478
1479	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1480	}
1481	}
1482
1483	#if EV_PERIODIC_ENABLE
1484	void inline_size
1485	periodics_reify (EV_P)
1486	{
1487	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1488	{
1489	ev_periodic *w = (ev_periodic *)periodics [0];
1490
1491	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1492
1493	/* first reschedule or stop timer */
1494	if (w->reschedule_cb)
1495	{
1496	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1497	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1498	downheap (periodics, periodiccnt, 0);
1499	}
1500	else if (w->interval)
1501	{
1502	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1503	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1504	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1505	downheap (periodics, periodiccnt, 0);
1506	}
1507	else
1508	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1509
1510	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1511	}
1512	}
1513
1514	static void noinline
1515	periodics_reschedule (EV_P)
1516	{
1517	int i;
1518
1519	/* adjust periodics after time jump */
1520	for (i = 0; i < periodiccnt; ++i)
1521	{
1522	ev_periodic *w = (ev_periodic *)periodics [i];
1523
1524	if (w->reschedule_cb)
1525	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1526	else if (w->interval)
1527	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1528	}
1529
1530	/* now rebuild the heap */
1531	for (i = periodiccnt >> 1; i--; )
1532	downheap (periodics, periodiccnt, i);
1533	}
1534	#endif
1535
1536	#if EV_IDLE_ENABLE	1967	#if EV_IDLE_ENABLE
1537	void inline_size	1968	/* make idle watchers pending. this handles the "call-idle */
		1969	/* only when higher priorities are idle" logic */
		1970	inline_size void
1538	idle_reify (EV_P)	1971	idle_reify (EV_P)
1539	{	1972	{
1540	if (expect_false (idleall))	1973	if (expect_false (idleall))
1541	{	1974	{
1542	int pri;	1975	int pri;
…		…
1554	}	1987	}
1555	}	1988	}
1556	}	1989	}
1557	#endif	1990	#endif
1558		1991
1559	void inline_speed	1992	/* make timers pending */
		1993	inline_size void
		1994	timers_reify (EV_P)
		1995	{
		1996	EV_FREQUENT_CHECK;
		1997
		1998	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		1999	{
		2000	do
		2001	{
		2002	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2003
		2004	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2005
		2006	/* first reschedule or stop timer */
		2007	if (w->repeat)
		2008	{
		2009	ev_at (w) += w->repeat;
		2010	if (ev_at (w) < mn_now)
		2011	ev_at (w) = mn_now;
		2012
		2013	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		2014
		2015	ANHE_at_cache (timers [HEAP0]);
		2016	downheap (timers, timercnt, HEAP0);
		2017	}
		2018	else
		2019	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2020
		2021	EV_FREQUENT_CHECK;
		2022	feed_reverse (EV_A_ (W)w);
		2023	}
		2024	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
		2025
		2026	feed_reverse_done (EV_A_ EV_TIMEOUT);
		2027	}
		2028	}
		2029
		2030	#if EV_PERIODIC_ENABLE
		2031	/* make periodics pending */
		2032	inline_size void
		2033	periodics_reify (EV_P)
		2034	{
		2035	EV_FREQUENT_CHECK;
		2036
		2037	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		2038	{
		2039	int feed_count = 0;
		2040
		2041	do
		2042	{
		2043	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2044
		2045	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2046
		2047	/* first reschedule or stop timer */
		2048	if (w->reschedule_cb)
		2049	{
		2050	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		2051
		2052	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		2053
		2054	ANHE_at_cache (periodics [HEAP0]);
		2055	downheap (periodics, periodiccnt, HEAP0);
		2056	}
		2057	else if (w->interval)
		2058	{
		2059	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2060	/* if next trigger time is not sufficiently in the future, put it there */
		2061	/* this might happen because of floating point inexactness */
		2062	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2063	{
		2064	ev_at (w) += w->interval;
		2065
		2066	/* if interval is unreasonably low we might still have a time in the past */
		2067	/* so correct this. this will make the periodic very inexact, but the user */
		2068	/* has effectively asked to get triggered more often than possible */
		2069	if (ev_at (w) < ev_rt_now)
		2070	ev_at (w) = ev_rt_now;
		2071	}
		2072
		2073	ANHE_at_cache (periodics [HEAP0]);
		2074	downheap (periodics, periodiccnt, HEAP0);
		2075	}
		2076	else
		2077	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2078
		2079	EV_FREQUENT_CHECK;
		2080	feed_reverse (EV_A_ (W)w);
		2081	}
		2082	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
		2083
		2084	feed_reverse_done (EV_A_ EV_PERIODIC);
		2085	}
		2086	}
		2087
		2088	/* simply recalculate all periodics */
		2089	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
		2090	static void noinline
		2091	periodics_reschedule (EV_P)
		2092	{
		2093	int i;
		2094
		2095	/* adjust periodics after time jump */
		2096	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		2097	{
		2098	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
		2099
		2100	if (w->reschedule_cb)
		2101	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		2102	else if (w->interval)
		2103	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2104
		2105	ANHE_at_cache (periodics [i]);
		2106	}
		2107
		2108	reheap (periodics, periodiccnt);
		2109	}
		2110	#endif
		2111
		2112	/* adjust all timers by a given offset */
		2113	static void noinline
		2114	timers_reschedule (EV_P_ ev_tstamp adjust)
		2115	{
		2116	int i;
		2117
		2118	for (i = 0; i < timercnt; ++i)
		2119	{
		2120	ANHE *he = timers + i + HEAP0;
		2121	ANHE_w (*he)->at += adjust;
		2122	ANHE_at_cache (*he);
		2123	}
		2124	}
		2125
		2126	/* fetch new monotonic and realtime times from the kernel */
		2127	/* also detetc if there was a timejump, and act accordingly */
		2128	inline_speed void
1560	time_update (EV_P_ ev_tstamp max_block)	2129	time_update (EV_P_ ev_tstamp max_block)
1561	{	2130	{
1562	int i;
1563
1564	#if EV_USE_MONOTONIC	2131	#if EV_USE_MONOTONIC
1565	if (expect_true (have_monotonic))	2132	if (expect_true (have_monotonic))
1566	{	2133	{
		2134	int i;
1567	ev_tstamp odiff = rtmn_diff;	2135	ev_tstamp odiff = rtmn_diff;
1568		2136
1569	mn_now = get_clock ();	2137	mn_now = get_clock ();
1570		2138
1571	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2139	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1589	*/	2157	*/
1590	for (i = 4; --i; )	2158	for (i = 4; --i; )
1591	{	2159	{
1592	rtmn_diff = ev_rt_now - mn_now;	2160	rtmn_diff = ev_rt_now - mn_now;
1593		2161
1594	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	2162	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1595	return; /* all is well */	2163	return; /* all is well */
1596		2164
1597	ev_rt_now = ev_time ();	2165	ev_rt_now = ev_time ();
1598	mn_now = get_clock ();	2166	mn_now = get_clock ();
1599	now_floor = mn_now;	2167	now_floor = mn_now;
1600	}	2168	}
1601		2169
		2170	/* no timer adjustment, as the monotonic clock doesn't jump */
		2171	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1602	# if EV_PERIODIC_ENABLE	2172	# if EV_PERIODIC_ENABLE
1603	periodics_reschedule (EV_A);	2173	periodics_reschedule (EV_A);
1604	# endif	2174	# endif
1605	/* no timer adjustment, as the monotonic clock doesn't jump */
1606	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1607	}	2175	}
1608	else	2176	else
1609	#endif	2177	#endif
1610	{	2178	{
1611	ev_rt_now = ev_time ();	2179	ev_rt_now = ev_time ();
1612		2180
1613	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2181	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1614	{	2182	{
		2183	/* adjust timers. this is easy, as the offset is the same for all of them */
		2184	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1615	#if EV_PERIODIC_ENABLE	2185	#if EV_PERIODIC_ENABLE
1616	periodics_reschedule (EV_A);	2186	periodics_reschedule (EV_A);
1617	#endif	2187	#endif
1618	/* adjust timers. this is easy, as the offset is the same for all of them */
1619	for (i = 0; i < timercnt; ++i)
1620	((WT)timers [i])->at += ev_rt_now - mn_now;
1621	}	2188	}
1622		2189
1623	mn_now = ev_rt_now;	2190	mn_now = ev_rt_now;
1624	}	2191	}
1625	}	2192	}
1626		2193
1627	void	2194	void
1628	ev_ref (EV_P)
1629	{
1630	++activecnt;
1631	}
1632
1633	void
1634	ev_unref (EV_P)
1635	{
1636	--activecnt;
1637	}
1638
1639	static int loop_done;
1640
1641	void
1642	ev_loop (EV_P_ int flags)	2195	ev_loop (EV_P_ int flags)
1643	{	2196	{
		2197	#if EV_MINIMAL < 2
		2198	++loop_depth;
		2199	#endif
		2200
		2201	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2202
1644	loop_done = EVUNLOOP_CANCEL;	2203	loop_done = EVUNLOOP_CANCEL;
1645		2204
1646	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2205	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1647		2206
1648	do	2207	do
1649	{	2208	{
		2209	#if EV_VERIFY >= 2
		2210	ev_loop_verify (EV_A);
		2211	#endif
		2212
1650	#ifndef _WIN32	2213	#ifndef _WIN32
1651	if (expect_false (curpid)) /* penalise the forking check even more */	2214	if (expect_false (curpid)) /* penalise the forking check even more */
1652	if (expect_false (getpid () != curpid))	2215	if (expect_false (getpid () != curpid))
1653	{	2216	{
1654	curpid = getpid ();	2217	curpid = getpid ();
…		…
1660	/* we might have forked, so queue fork handlers */	2223	/* we might have forked, so queue fork handlers */
1661	if (expect_false (postfork))	2224	if (expect_false (postfork))
1662	if (forkcnt)	2225	if (forkcnt)
1663	{	2226	{
1664	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2227	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1665	call_pending (EV_A);	2228	EV_INVOKE_PENDING;
1666	}	2229	}
1667	#endif	2230	#endif
1668		2231
1669	/* queue prepare watchers (and execute them) */	2232	/* queue prepare watchers (and execute them) */
1670	if (expect_false (preparecnt))	2233	if (expect_false (preparecnt))
1671	{	2234	{
1672	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2235	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1673	call_pending (EV_A);	2236	EV_INVOKE_PENDING;
1674	}	2237	}
1675		2238
1676	if (expect_false (!activecnt))	2239	if (expect_false (loop_done))
1677	break;	2240	break;
1678		2241
1679	/* we might have forked, so reify kernel state if necessary */	2242	/* we might have forked, so reify kernel state if necessary */
1680	if (expect_false (postfork))	2243	if (expect_false (postfork))
1681	loop_fork (EV_A);	2244	loop_fork (EV_A);
…		…
1688	ev_tstamp waittime = 0.;	2251	ev_tstamp waittime = 0.;
1689	ev_tstamp sleeptime = 0.;	2252	ev_tstamp sleeptime = 0.;
1690		2253
1691	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2254	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1692	{	2255	{
		2256	/* remember old timestamp for io_blocktime calculation */
		2257	ev_tstamp prev_mn_now = mn_now;
		2258
1693	/* update time to cancel out callback processing overhead */	2259	/* update time to cancel out callback processing overhead */
1694	time_update (EV_A_ 1e100);	2260	time_update (EV_A_ 1e100);
1695		2261
1696	waittime = MAX_BLOCKTIME;	2262	waittime = MAX_BLOCKTIME;
1697		2263
1698	if (timercnt)	2264	if (timercnt)
1699	{	2265	{
1700	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	2266	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1701	if (waittime > to) waittime = to;	2267	if (waittime > to) waittime = to;
1702	}	2268	}
1703		2269
1704	#if EV_PERIODIC_ENABLE	2270	#if EV_PERIODIC_ENABLE
1705	if (periodiccnt)	2271	if (periodiccnt)
1706	{	2272	{
1707	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	2273	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1708	if (waittime > to) waittime = to;	2274	if (waittime > to) waittime = to;
1709	}	2275	}
1710	#endif	2276	#endif
1711		2277
		2278	/* don't let timeouts decrease the waittime below timeout_blocktime */
1712	if (expect_false (waittime < timeout_blocktime))	2279	if (expect_false (waittime < timeout_blocktime))
1713	waittime = timeout_blocktime;	2280	waittime = timeout_blocktime;
1714		2281
1715	sleeptime = waittime - backend_fudge;	2282	/* extra check because io_blocktime is commonly 0 */
1716
1717	if (expect_true (sleeptime > io_blocktime))	2283	if (expect_false (io_blocktime))
1718	sleeptime = io_blocktime;
1719
1720	if (sleeptime)
1721	{	2284	{
		2285	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2286
		2287	if (sleeptime > waittime - backend_fudge)
		2288	sleeptime = waittime - backend_fudge;
		2289
		2290	if (expect_true (sleeptime > 0.))
		2291	{
1722	ev_sleep (sleeptime);	2292	ev_sleep (sleeptime);
1723	waittime -= sleeptime;	2293	waittime -= sleeptime;
		2294	}
1724	}	2295	}
1725	}	2296	}
1726		2297
		2298	#if EV_MINIMAL < 2
1727	++loop_count;	2299	++loop_count;
		2300	#endif
		2301	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1728	backend_poll (EV_A_ waittime);	2302	backend_poll (EV_A_ waittime);
		2303	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1729		2304
1730	/* update ev_rt_now, do magic */	2305	/* update ev_rt_now, do magic */
1731	time_update (EV_A_ waittime + sleeptime);	2306	time_update (EV_A_ waittime + sleeptime);
1732	}	2307	}
1733		2308
…		…
1744		2319
1745	/* queue check watchers, to be executed first */	2320	/* queue check watchers, to be executed first */
1746	if (expect_false (checkcnt))	2321	if (expect_false (checkcnt))
1747	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2322	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1748		2323
1749	call_pending (EV_A);	2324	EV_INVOKE_PENDING;
1750	}	2325	}
1751	while (expect_true (	2326	while (expect_true (
1752	activecnt	2327	activecnt
1753	&& !loop_done	2328	&& !loop_done
1754	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2329	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1755	));	2330	));
1756		2331
1757	if (loop_done == EVUNLOOP_ONE)	2332	if (loop_done == EVUNLOOP_ONE)
1758	loop_done = EVUNLOOP_CANCEL;	2333	loop_done = EVUNLOOP_CANCEL;
		2334
		2335	#if EV_MINIMAL < 2
		2336	--loop_depth;
		2337	#endif
1759	}	2338	}
1760		2339
1761	void	2340	void
1762	ev_unloop (EV_P_ int how)	2341	ev_unloop (EV_P_ int how)
1763	{	2342	{
1764	loop_done = how;	2343	loop_done = how;
1765	}	2344	}
1766		2345
		2346	void
		2347	ev_ref (EV_P)
		2348	{
		2349	++activecnt;
		2350	}
		2351
		2352	void
		2353	ev_unref (EV_P)
		2354	{
		2355	--activecnt;
		2356	}
		2357
		2358	void
		2359	ev_now_update (EV_P)
		2360	{
		2361	time_update (EV_A_ 1e100);
		2362	}
		2363
		2364	void
		2365	ev_suspend (EV_P)
		2366	{
		2367	ev_now_update (EV_A);
		2368	}
		2369
		2370	void
		2371	ev_resume (EV_P)
		2372	{
		2373	ev_tstamp mn_prev = mn_now;
		2374
		2375	ev_now_update (EV_A);
		2376	timers_reschedule (EV_A_ mn_now - mn_prev);
		2377	#if EV_PERIODIC_ENABLE
		2378	/* TODO: really do this? */
		2379	periodics_reschedule (EV_A);
		2380	#endif
		2381	}
		2382
1767	/*****************************************************************************/	2383	/*****************************************************************************/
		2384	/* singly-linked list management, used when the expected list length is short */
1768		2385
1769	void inline_size	2386	inline_size void
1770	wlist_add (WL *head, WL elem)	2387	wlist_add (WL *head, WL elem)
1771	{	2388	{
1772	elem->next = *head;	2389	elem->next = *head;
1773	*head = elem;	2390	*head = elem;
1774	}	2391	}
1775		2392
1776	void inline_size	2393	inline_size void
1777	wlist_del (WL *head, WL elem)	2394	wlist_del (WL *head, WL elem)
1778	{	2395	{
1779	while (*head)	2396	while (*head)
1780	{	2397	{
1781	if (*head == elem)	2398	if (*head == elem)
…		…
1786		2403
1787	head = &(*head)->next;	2404	head = &(*head)->next;
1788	}	2405	}
1789	}	2406	}
1790		2407
1791	void inline_speed	2408	/* internal, faster, version of ev_clear_pending */
		2409	inline_speed void
1792	clear_pending (EV_P_ W w)	2410	clear_pending (EV_P_ W w)
1793	{	2411	{
1794	if (w->pending)	2412	if (w->pending)
1795	{	2413	{
1796	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2414	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1797	w->pending = 0;	2415	w->pending = 0;
1798	}	2416	}
1799	}	2417	}
1800		2418
1801	int	2419	int
…		…
1805	int pending = w_->pending;	2423	int pending = w_->pending;
1806		2424
1807	if (expect_true (pending))	2425	if (expect_true (pending))
1808	{	2426	{
1809	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2427	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2428	p->w = (W)&pending_w;
1810	w_->pending = 0;	2429	w_->pending = 0;
1811	p->w = 0;
1812	return p->events;	2430	return p->events;
1813	}	2431	}
1814	else	2432	else
1815	return 0;	2433	return 0;
1816	}	2434	}
1817		2435
1818	void inline_size	2436	inline_size void
1819	pri_adjust (EV_P_ W w)	2437	pri_adjust (EV_P_ W w)
1820	{	2438	{
1821	int pri = w->priority;	2439	int pri = ev_priority (w);
1822	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2440	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1823	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2441	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1824	w->priority = pri;	2442	ev_set_priority (w, pri);
1825	}	2443	}
1826		2444
1827	void inline_speed	2445	inline_speed void
1828	ev_start (EV_P_ W w, int active)	2446	ev_start (EV_P_ W w, int active)
1829	{	2447	{
1830	pri_adjust (EV_A_ w);	2448	pri_adjust (EV_A_ w);
1831	w->active = active;	2449	w->active = active;
1832	ev_ref (EV_A);	2450	ev_ref (EV_A);
1833	}	2451	}
1834		2452
1835	void inline_size	2453	inline_size void
1836	ev_stop (EV_P_ W w)	2454	ev_stop (EV_P_ W w)
1837	{	2455	{
1838	ev_unref (EV_A);	2456	ev_unref (EV_A);
1839	w->active = 0;	2457	w->active = 0;
1840	}	2458	}
…		…
1847	int fd = w->fd;	2465	int fd = w->fd;
1848		2466
1849	if (expect_false (ev_is_active (w)))	2467	if (expect_false (ev_is_active (w)))
1850	return;	2468	return;
1851		2469
1852	assert (("ev_io_start called with negative fd", fd >= 0));	2470	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2471	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
		2472
		2473	EV_FREQUENT_CHECK;
1853		2474
1854	ev_start (EV_A_ (W)w, 1);	2475	ev_start (EV_A_ (W)w, 1);
1855	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2476	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1856	wlist_add (&anfds[fd].head, (WL)w);	2477	wlist_add (&anfds[fd].head, (WL)w);
1857		2478
1858	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2479	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1859	w->events &= ~EV_IOFDSET;	2480	w->events &= ~EV__IOFDSET;
		2481
		2482	EV_FREQUENT_CHECK;
1860	}	2483	}
1861		2484
1862	void noinline	2485	void noinline
1863	ev_io_stop (EV_P_ ev_io *w)	2486	ev_io_stop (EV_P_ ev_io *w)
1864	{	2487	{
1865	clear_pending (EV_A_ (W)w);	2488	clear_pending (EV_A_ (W)w);
1866	if (expect_false (!ev_is_active (w)))	2489	if (expect_false (!ev_is_active (w)))
1867	return;	2490	return;
1868		2491
1869	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2492	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2493
		2494	EV_FREQUENT_CHECK;
1870		2495
1871	wlist_del (&anfds[w->fd].head, (WL)w);	2496	wlist_del (&anfds[w->fd].head, (WL)w);
1872	ev_stop (EV_A_ (W)w);	2497	ev_stop (EV_A_ (W)w);
1873		2498
1874	fd_change (EV_A_ w->fd, 1);	2499	fd_change (EV_A_ w->fd, 1);
		2500
		2501	EV_FREQUENT_CHECK;
1875	}	2502	}
1876		2503
1877	void noinline	2504	void noinline
1878	ev_timer_start (EV_P_ ev_timer *w)	2505	ev_timer_start (EV_P_ ev_timer *w)
1879	{	2506	{
1880	if (expect_false (ev_is_active (w)))	2507	if (expect_false (ev_is_active (w)))
1881	return;	2508	return;
1882		2509
1883	((WT)w)->at += mn_now;	2510	ev_at (w) += mn_now;
1884		2511
1885	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2512	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1886		2513
		2514	EV_FREQUENT_CHECK;
		2515
		2516	++timercnt;
1887	ev_start (EV_A_ (W)w, ++timercnt);	2517	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1888	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2518	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1889	timers [timercnt - 1] = (WT)w;	2519	ANHE_w (timers [ev_active (w)]) = (WT)w;
1890	upheap (timers, timercnt - 1);	2520	ANHE_at_cache (timers [ev_active (w)]);
		2521	upheap (timers, ev_active (w));
1891		2522
		2523	EV_FREQUENT_CHECK;
		2524
1892	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	2525	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1893	}	2526	}
1894		2527
1895	void noinline	2528	void noinline
1896	ev_timer_stop (EV_P_ ev_timer *w)	2529	ev_timer_stop (EV_P_ ev_timer *w)
1897	{	2530	{
1898	clear_pending (EV_A_ (W)w);	2531	clear_pending (EV_A_ (W)w);
1899	if (expect_false (!ev_is_active (w)))	2532	if (expect_false (!ev_is_active (w)))
1900	return;	2533	return;
1901		2534
1902	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));	2535	EV_FREQUENT_CHECK;
1903		2536
1904	{	2537	{
1905	int active = ((W)w)->active;	2538	int active = ev_active (w);
1906		2539
		2540	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2541
		2542	--timercnt;
		2543
1907	if (expect_true (--active < --timercnt))	2544	if (expect_true (active < timercnt + HEAP0))
1908	{	2545	{
1909	timers [active] = timers [timercnt];	2546	timers [active] = timers [timercnt + HEAP0];
1910	adjustheap (timers, timercnt, active);	2547	adjustheap (timers, timercnt, active);
1911	}	2548	}
1912	}	2549	}
1913		2550
1914	((WT)w)->at -= mn_now;	2551	EV_FREQUENT_CHECK;
		2552
		2553	ev_at (w) -= mn_now;
1915		2554
1916	ev_stop (EV_A_ (W)w);	2555	ev_stop (EV_A_ (W)w);
1917	}	2556	}
1918		2557
1919	void noinline	2558	void noinline
1920	ev_timer_again (EV_P_ ev_timer *w)	2559	ev_timer_again (EV_P_ ev_timer *w)
1921	{	2560	{
		2561	EV_FREQUENT_CHECK;
		2562
1922	if (ev_is_active (w))	2563	if (ev_is_active (w))
1923	{	2564	{
1924	if (w->repeat)	2565	if (w->repeat)
1925	{	2566	{
1926	((WT)w)->at = mn_now + w->repeat;	2567	ev_at (w) = mn_now + w->repeat;
		2568	ANHE_at_cache (timers [ev_active (w)]);
1927	adjustheap (timers, timercnt, ((W)w)->active - 1);	2569	adjustheap (timers, timercnt, ev_active (w));
1928	}	2570	}
1929	else	2571	else
1930	ev_timer_stop (EV_A_ w);	2572	ev_timer_stop (EV_A_ w);
1931	}	2573	}
1932	else if (w->repeat)	2574	else if (w->repeat)
1933	{	2575	{
1934	w->at = w->repeat;	2576	ev_at (w) = w->repeat;
1935	ev_timer_start (EV_A_ w);	2577	ev_timer_start (EV_A_ w);
1936	}	2578	}
		2579
		2580	EV_FREQUENT_CHECK;
		2581	}
		2582
		2583	ev_tstamp
		2584	ev_timer_remaining (EV_P_ ev_timer *w)
		2585	{
		2586	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
1937	}	2587	}
1938		2588
1939	#if EV_PERIODIC_ENABLE	2589	#if EV_PERIODIC_ENABLE
1940	void noinline	2590	void noinline
1941	ev_periodic_start (EV_P_ ev_periodic *w)	2591	ev_periodic_start (EV_P_ ev_periodic *w)
1942	{	2592	{
1943	if (expect_false (ev_is_active (w)))	2593	if (expect_false (ev_is_active (w)))
1944	return;	2594	return;
1945		2595
1946	if (w->reschedule_cb)	2596	if (w->reschedule_cb)
1947	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2597	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1948	else if (w->interval)	2598	else if (w->interval)
1949	{	2599	{
1950	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2600	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1951	/* this formula differs from the one in periodic_reify because we do not always round up */	2601	/* this formula differs from the one in periodic_reify because we do not always round up */
1952	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2602	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1953	}	2603	}
1954	else	2604	else
1955	((WT)w)->at = w->offset;	2605	ev_at (w) = w->offset;
1956		2606
		2607	EV_FREQUENT_CHECK;
		2608
		2609	++periodiccnt;
1957	ev_start (EV_A_ (W)w, ++periodiccnt);	2610	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1958	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2611	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1959	periodics [periodiccnt - 1] = (WT)w;	2612	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1960	upheap (periodics, periodiccnt - 1);	2613	ANHE_at_cache (periodics [ev_active (w)]);
		2614	upheap (periodics, ev_active (w));
1961		2615
		2616	EV_FREQUENT_CHECK;
		2617
1962	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	2618	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1963	}	2619	}
1964		2620
1965	void noinline	2621	void noinline
1966	ev_periodic_stop (EV_P_ ev_periodic *w)	2622	ev_periodic_stop (EV_P_ ev_periodic *w)
1967	{	2623	{
1968	clear_pending (EV_A_ (W)w);	2624	clear_pending (EV_A_ (W)w);
1969	if (expect_false (!ev_is_active (w)))	2625	if (expect_false (!ev_is_active (w)))
1970	return;	2626	return;
1971		2627
1972	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));	2628	EV_FREQUENT_CHECK;
1973		2629
1974	{	2630	{
1975	int active = ((W)w)->active;	2631	int active = ev_active (w);
1976		2632
		2633	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2634
		2635	--periodiccnt;
		2636
1977	if (expect_true (--active < --periodiccnt))	2637	if (expect_true (active < periodiccnt + HEAP0))
1978	{	2638	{
1979	periodics [active] = periodics [periodiccnt];	2639	periodics [active] = periodics [periodiccnt + HEAP0];
1980	adjustheap (periodics, periodiccnt, active);	2640	adjustheap (periodics, periodiccnt, active);
1981	}	2641	}
1982	}	2642	}
1983		2643
		2644	EV_FREQUENT_CHECK;
		2645
1984	ev_stop (EV_A_ (W)w);	2646	ev_stop (EV_A_ (W)w);
1985	}	2647	}
1986		2648
1987	void noinline	2649	void noinline
1988	ev_periodic_again (EV_P_ ev_periodic *w)	2650	ev_periodic_again (EV_P_ ev_periodic *w)
…		…
1998	#endif	2660	#endif
1999		2661
2000	void noinline	2662	void noinline
2001	ev_signal_start (EV_P_ ev_signal *w)	2663	ev_signal_start (EV_P_ ev_signal *w)
2002	{	2664	{
2003	#if EV_MULTIPLICITY
2004	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2005	#endif
2006	if (expect_false (ev_is_active (w)))	2665	if (expect_false (ev_is_active (w)))
2007	return;	2666	return;
2008		2667
2009	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2668	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2010		2669
2011	evpipe_init (EV_A);	2670	#if EV_MULTIPLICITY
		2671	assert (("libev: tried to attach to a signal from two different loops",
		2672	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2012		2673
		2674	signals [w->signum - 1].loop = EV_A;
		2675	#endif
		2676
		2677	EV_FREQUENT_CHECK;
		2678
		2679	#if EV_USE_SIGNALFD
		2680	if (sigfd == -2)
2013	{	2681	{
2014	#ifndef _WIN32	2682	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2015	sigset_t full, prev;	2683	if (sigfd < 0 && errno == EINVAL)
2016	sigfillset (&full);	2684	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2017	sigprocmask (SIG_SETMASK, &full, &prev);
2018	#endif
2019		2685
2020	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2686	if (sigfd >= 0)
		2687	{
		2688	fd_intern (sigfd); /* doing it twice will not hurt */
2021		2689
2022	#ifndef _WIN32	2690	sigemptyset (&sigfd_set);
2023	sigprocmask (SIG_SETMASK, &prev, 0);	2691
2024	#endif	2692	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2693	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2694	ev_io_start (EV_A_ &sigfd_w);
		2695	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2696	}
2025	}	2697	}
		2698
		2699	if (sigfd >= 0)
		2700	{
		2701	/* TODO: check .head */
		2702	sigaddset (&sigfd_set, w->signum);
		2703	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2704
		2705	signalfd (sigfd, &sigfd_set, 0);
		2706	}
		2707	#endif
2026		2708
2027	ev_start (EV_A_ (W)w, 1);	2709	ev_start (EV_A_ (W)w, 1);
2028	wlist_add (&signals [w->signum - 1].head, (WL)w);	2710	wlist_add (&signals [w->signum - 1].head, (WL)w);
2029		2711
2030	if (!((WL)w)->next)	2712	if (!((WL)w)->next)
		2713	# if EV_USE_SIGNALFD
		2714	if (sigfd < 0) /*TODO*/
		2715	# endif
2031	{	2716	{
2032	#if _WIN32	2717	# if _WIN32
2033	signal (w->signum, ev_sighandler);	2718	signal (w->signum, ev_sighandler);
2034	#else	2719	# else
2035	struct sigaction sa;	2720	struct sigaction sa;
		2721
		2722	evpipe_init (EV_A);
		2723
2036	sa.sa_handler = ev_sighandler;	2724	sa.sa_handler = ev_sighandler;
2037	sigfillset (&sa.sa_mask);	2725	sigfillset (&sa.sa_mask);
2038	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2726	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2039	sigaction (w->signum, &sa, 0);	2727	sigaction (w->signum, &sa, 0);
		2728
		2729	sigemptyset (&sa.sa_mask);
		2730	sigaddset (&sa.sa_mask, w->signum);
		2731	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2040	#endif	2732	#endif
2041	}	2733	}
		2734
		2735	EV_FREQUENT_CHECK;
2042	}	2736	}
2043		2737
2044	void noinline	2738	void noinline
2045	ev_signal_stop (EV_P_ ev_signal *w)	2739	ev_signal_stop (EV_P_ ev_signal *w)
2046	{	2740	{
2047	clear_pending (EV_A_ (W)w);	2741	clear_pending (EV_A_ (W)w);
2048	if (expect_false (!ev_is_active (w)))	2742	if (expect_false (!ev_is_active (w)))
2049	return;	2743	return;
2050		2744
		2745	EV_FREQUENT_CHECK;
		2746
2051	wlist_del (&signals [w->signum - 1].head, (WL)w);	2747	wlist_del (&signals [w->signum - 1].head, (WL)w);
2052	ev_stop (EV_A_ (W)w);	2748	ev_stop (EV_A_ (W)w);
2053		2749
2054	if (!signals [w->signum - 1].head)	2750	if (!signals [w->signum - 1].head)
		2751	{
		2752	#if EV_MULTIPLICITY
		2753	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2754	#endif
		2755	#if EV_USE_SIGNALFD
		2756	if (sigfd >= 0)
		2757	{
		2758	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2759	sigdelset (&sigfd_set, w->signum);
		2760	signalfd (sigfd, &sigfd_set, 0);
		2761	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2762	/*TODO: maybe unblock signal? */
		2763	}
		2764	else
		2765	#endif
2055	signal (w->signum, SIG_DFL);	2766	signal (w->signum, SIG_DFL);
		2767	}
		2768
		2769	EV_FREQUENT_CHECK;
2056	}	2770	}
2057		2771
2058	void	2772	void
2059	ev_child_start (EV_P_ ev_child *w)	2773	ev_child_start (EV_P_ ev_child *w)
2060	{	2774	{
2061	#if EV_MULTIPLICITY	2775	#if EV_MULTIPLICITY
2062	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2776	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2063	#endif	2777	#endif
2064	if (expect_false (ev_is_active (w)))	2778	if (expect_false (ev_is_active (w)))
2065	return;	2779	return;
2066		2780
		2781	EV_FREQUENT_CHECK;
		2782
2067	ev_start (EV_A_ (W)w, 1);	2783	ev_start (EV_A_ (W)w, 1);
2068	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2784	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2785
		2786	EV_FREQUENT_CHECK;
2069	}	2787	}
2070		2788
2071	void	2789	void
2072	ev_child_stop (EV_P_ ev_child *w)	2790	ev_child_stop (EV_P_ ev_child *w)
2073	{	2791	{
2074	clear_pending (EV_A_ (W)w);	2792	clear_pending (EV_A_ (W)w);
2075	if (expect_false (!ev_is_active (w)))	2793	if (expect_false (!ev_is_active (w)))
2076	return;	2794	return;
2077		2795
		2796	EV_FREQUENT_CHECK;
		2797
2078	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2798	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2079	ev_stop (EV_A_ (W)w);	2799	ev_stop (EV_A_ (W)w);
		2800
		2801	EV_FREQUENT_CHECK;
2080	}	2802	}
2081		2803
2082	#if EV_STAT_ENABLE	2804	#if EV_STAT_ENABLE
2083		2805
2084	# ifdef _WIN32	2806	# ifdef _WIN32
2085	# undef lstat	2807	# undef lstat
2086	# define lstat(a,b) _stati64 (a,b)	2808	# define lstat(a,b) _stati64 (a,b)
2087	# endif	2809	# endif
2088		2810
2089	#define DEF_STAT_INTERVAL 5.0074891	2811	#define DEF_STAT_INTERVAL 5.0074891
		2812	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2090	#define MIN_STAT_INTERVAL 0.1074891	2813	#define MIN_STAT_INTERVAL 0.1074891
2091		2814
2092	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2815	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2093		2816
2094	#if EV_USE_INOTIFY	2817	#if EV_USE_INOTIFY
2095	# define EV_INOTIFY_BUFSIZE 8192	2818	# define EV_INOTIFY_BUFSIZE 8192
…		…
2099	{	2822	{
2100	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);	2823	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);
2101		2824
2102	if (w->wd < 0)	2825	if (w->wd < 0)
2103	{	2826	{
		2827	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2104	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2828	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2105		2829
2106	/* monitor some parent directory for speedup hints */	2830	/* monitor some parent directory for speedup hints */
		2831	/* note that exceeding the hardcoded path limit is not a correctness issue, */
		2832	/* but an efficiency issue only */
2107	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2833	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2108	{	2834	{
2109	char path [4096];	2835	char path [4096];
2110	strcpy (path, w->path);	2836	strcpy (path, w->path);
2111		2837
…		…
2114	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2840	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2115	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2841	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2116		2842
2117	char *pend = strrchr (path, '/');	2843	char *pend = strrchr (path, '/');
2118		2844
2119	if (!pend)	2845	if (!pend || pend == path)
2120	break; /* whoops, no '/', complain to your admin */	2846	break;
2121		2847
2122	*pend = 0;	2848	*pend = 0;
2123	w->wd = inotify_add_watch (fs_fd, path, mask);	2849	w->wd = inotify_add_watch (fs_fd, path, mask);
2124	}	2850	}
2125	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2851	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2126	}	2852	}
2127	}	2853	}
2128	else
2129	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2130		2854
2131	if (w->wd >= 0)	2855	if (w->wd >= 0)
		2856	{
2132	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2857	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2858
		2859	/* now local changes will be tracked by inotify, but remote changes won't */
		2860	/* unless the filesystem it known to be local, we therefore still poll */
		2861	/* also do poll on <2.6.25, but with normal frequency */
		2862	struct statfs sfs;
		2863
		2864	if (fs_2625 && !statfs (w->path, &sfs))
		2865	if (sfs.f_type == 0x1373 /* devfs */
		2866	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2867	|| sfs.f_type == 0x3153464a /* jfs */
		2868	|| sfs.f_type == 0x52654973 /* reiser3 */
		2869	|| sfs.f_type == 0x01021994 /* tempfs */
		2870	|| sfs.f_type == 0x58465342 /* xfs */)
		2871	return;
		2872
		2873	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2874	ev_timer_again (EV_A_ &w->timer);
		2875	}
2133	}	2876	}
2134		2877
2135	static void noinline	2878	static void noinline
2136	infy_del (EV_P_ ev_stat *w)	2879	infy_del (EV_P_ ev_stat *w)
2137	{	2880	{
…		…
2151		2894
2152	static void noinline	2895	static void noinline
2153	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2896	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2154	{	2897	{
2155	if (slot < 0)	2898	if (slot < 0)
2156	/* overflow, need to check for all hahs slots */	2899	/* overflow, need to check for all hash slots */
2157	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2900	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2158	infy_wd (EV_A_ slot, wd, ev);	2901	infy_wd (EV_A_ slot, wd, ev);
2159	else	2902	else
2160	{	2903	{
2161	WL w_;	2904	WL w_;
…		…
2167		2910
2168	if (w->wd == wd || wd == -1)	2911	if (w->wd == wd || wd == -1)
2169	{	2912	{
2170	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2913	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2171	{	2914	{
		2915	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2172	w->wd = -1;	2916	w->wd = -1;
2173	infy_add (EV_A_ w); /* re-add, no matter what */	2917	infy_add (EV_A_ w); /* re-add, no matter what */
2174	}	2918	}
2175		2919
2176	stat_timer_cb (EV_A_ &w->timer, 0);	2920	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2189		2933
2190	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2934	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2191	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2935	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2192	}	2936	}
2193		2937
2194	void inline_size	2938	inline_size void
		2939	check_2625 (EV_P)
		2940	{
		2941	/* kernels < 2.6.25 are borked
		2942	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2943	*/
		2944	struct utsname buf;
		2945	int major, minor, micro;
		2946
		2947	if (uname (&buf))
		2948	return;
		2949
		2950	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2951	return;
		2952
		2953	if (major < 2
		2954	|| (major == 2 && minor < 6)
		2955	|| (major == 2 && minor == 6 && micro < 25))
		2956	return;
		2957
		2958	fs_2625 = 1;
		2959	}
		2960
		2961	inline_size void
2195	infy_init (EV_P)	2962	infy_init (EV_P)
2196	{	2963	{
2197	if (fs_fd != -2)	2964	if (fs_fd != -2)
2198	return;	2965	return;
		2966
		2967	fs_fd = -1;
		2968
		2969	check_2625 (EV_A);
2199		2970
2200	fs_fd = inotify_init ();	2971	fs_fd = inotify_init ();
2201		2972
2202	if (fs_fd >= 0)	2973	if (fs_fd >= 0)
2203	{	2974	{
…		…
2205	ev_set_priority (&fs_w, EV_MAXPRI);	2976	ev_set_priority (&fs_w, EV_MAXPRI);
2206	ev_io_start (EV_A_ &fs_w);	2977	ev_io_start (EV_A_ &fs_w);
2207	}	2978	}
2208	}	2979	}
2209		2980
2210	void inline_size	2981	inline_size void
2211	infy_fork (EV_P)	2982	infy_fork (EV_P)
2212	{	2983	{
2213	int slot;	2984	int slot;
2214		2985
2215	if (fs_fd < 0)	2986	if (fs_fd < 0)
…		…
2231	w->wd = -1;	3002	w->wd = -1;
2232		3003
2233	if (fs_fd >= 0)	3004	if (fs_fd >= 0)
2234	infy_add (EV_A_ w); /* re-add, no matter what */	3005	infy_add (EV_A_ w); /* re-add, no matter what */
2235	else	3006	else
2236	ev_timer_start (EV_A_ &w->timer);	3007	ev_timer_again (EV_A_ &w->timer);
2237	}	3008	}
2238
2239	}	3009	}
2240	}	3010	}
2241		3011
		3012	#endif
		3013
		3014	#ifdef _WIN32
		3015	# define EV_LSTAT(p,b) _stati64 (p, b)
		3016	#else
		3017	# define EV_LSTAT(p,b) lstat (p, b)
2242	#endif	3018	#endif
2243		3019
2244	void	3020	void
2245	ev_stat_stat (EV_P_ ev_stat *w)	3021	ev_stat_stat (EV_P_ ev_stat *w)
2246	{	3022	{
…		…
2273	|| w->prev.st_atime != w->attr.st_atime	3049	|| w->prev.st_atime != w->attr.st_atime
2274	|| w->prev.st_mtime != w->attr.st_mtime	3050	|| w->prev.st_mtime != w->attr.st_mtime
2275	|| w->prev.st_ctime != w->attr.st_ctime	3051	|| w->prev.st_ctime != w->attr.st_ctime
2276	) {	3052	) {
2277	#if EV_USE_INOTIFY	3053	#if EV_USE_INOTIFY
		3054	if (fs_fd >= 0)
		3055	{
2278	infy_del (EV_A_ w);	3056	infy_del (EV_A_ w);
2279	infy_add (EV_A_ w);	3057	infy_add (EV_A_ w);
2280	ev_stat_stat (EV_A_ w); /* avoid race... */	3058	ev_stat_stat (EV_A_ w); /* avoid race... */
		3059	}
2281	#endif	3060	#endif
2282		3061
2283	ev_feed_event (EV_A_ w, EV_STAT);	3062	ev_feed_event (EV_A_ w, EV_STAT);
2284	}	3063	}
2285	}	3064	}
…		…
2288	ev_stat_start (EV_P_ ev_stat *w)	3067	ev_stat_start (EV_P_ ev_stat *w)
2289	{	3068	{
2290	if (expect_false (ev_is_active (w)))	3069	if (expect_false (ev_is_active (w)))
2291	return;	3070	return;
2292		3071
2293	/* since we use memcmp, we need to clear any padding data etc. */
2294	memset (&w->prev, 0, sizeof (ev_statdata));
2295	memset (&w->attr, 0, sizeof (ev_statdata));
2296
2297	ev_stat_stat (EV_A_ w);	3072	ev_stat_stat (EV_A_ w);
2298		3073
		3074	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2299	if (w->interval < MIN_STAT_INTERVAL)	3075	w->interval = MIN_STAT_INTERVAL;
2300	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2301		3076
2302	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	3077	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2303	ev_set_priority (&w->timer, ev_priority (w));	3078	ev_set_priority (&w->timer, ev_priority (w));
2304		3079
2305	#if EV_USE_INOTIFY	3080	#if EV_USE_INOTIFY
2306	infy_init (EV_A);	3081	infy_init (EV_A);
2307		3082
2308	if (fs_fd >= 0)	3083	if (fs_fd >= 0)
2309	infy_add (EV_A_ w);	3084	infy_add (EV_A_ w);
2310	else	3085	else
2311	#endif	3086	#endif
2312	ev_timer_start (EV_A_ &w->timer);	3087	ev_timer_again (EV_A_ &w->timer);
2313		3088
2314	ev_start (EV_A_ (W)w, 1);	3089	ev_start (EV_A_ (W)w, 1);
		3090
		3091	EV_FREQUENT_CHECK;
2315	}	3092	}
2316		3093
2317	void	3094	void
2318	ev_stat_stop (EV_P_ ev_stat *w)	3095	ev_stat_stop (EV_P_ ev_stat *w)
2319	{	3096	{
2320	clear_pending (EV_A_ (W)w);	3097	clear_pending (EV_A_ (W)w);
2321	if (expect_false (!ev_is_active (w)))	3098	if (expect_false (!ev_is_active (w)))
2322	return;	3099	return;
2323		3100
		3101	EV_FREQUENT_CHECK;
		3102
2324	#if EV_USE_INOTIFY	3103	#if EV_USE_INOTIFY
2325	infy_del (EV_A_ w);	3104	infy_del (EV_A_ w);
2326	#endif	3105	#endif
2327	ev_timer_stop (EV_A_ &w->timer);	3106	ev_timer_stop (EV_A_ &w->timer);
2328		3107
2329	ev_stop (EV_A_ (W)w);	3108	ev_stop (EV_A_ (W)w);
		3109
		3110	EV_FREQUENT_CHECK;
2330	}	3111	}
2331	#endif	3112	#endif
2332		3113
2333	#if EV_IDLE_ENABLE	3114	#if EV_IDLE_ENABLE
2334	void	3115	void
…		…
2336	{	3117	{
2337	if (expect_false (ev_is_active (w)))	3118	if (expect_false (ev_is_active (w)))
2338	return;	3119	return;
2339		3120
2340	pri_adjust (EV_A_ (W)w);	3121	pri_adjust (EV_A_ (W)w);
		3122
		3123	EV_FREQUENT_CHECK;
2341		3124
2342	{	3125	{
2343	int active = ++idlecnt [ABSPRI (w)];	3126	int active = ++idlecnt [ABSPRI (w)];
2344		3127
2345	++idleall;	3128	++idleall;
2346	ev_start (EV_A_ (W)w, active);	3129	ev_start (EV_A_ (W)w, active);
2347		3130
2348	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	3131	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2349	idles [ABSPRI (w)][active - 1] = w;	3132	idles [ABSPRI (w)][active - 1] = w;
2350	}	3133	}
		3134
		3135	EV_FREQUENT_CHECK;
2351	}	3136	}
2352		3137
2353	void	3138	void
2354	ev_idle_stop (EV_P_ ev_idle *w)	3139	ev_idle_stop (EV_P_ ev_idle *w)
2355	{	3140	{
2356	clear_pending (EV_A_ (W)w);	3141	clear_pending (EV_A_ (W)w);
2357	if (expect_false (!ev_is_active (w)))	3142	if (expect_false (!ev_is_active (w)))
2358	return;	3143	return;
2359		3144
		3145	EV_FREQUENT_CHECK;
		3146
2360	{	3147	{
2361	int active = ((W)w)->active;	3148	int active = ev_active (w);
2362		3149
2363	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	3150	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2364	((W)idles [ABSPRI (w)][active - 1])->active = active;	3151	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2365		3152
2366	ev_stop (EV_A_ (W)w);	3153	ev_stop (EV_A_ (W)w);
2367	--idleall;	3154	--idleall;
2368	}	3155	}
		3156
		3157	EV_FREQUENT_CHECK;
2369	}	3158	}
2370	#endif	3159	#endif
2371		3160
2372	void	3161	void
2373	ev_prepare_start (EV_P_ ev_prepare *w)	3162	ev_prepare_start (EV_P_ ev_prepare *w)
2374	{	3163	{
2375	if (expect_false (ev_is_active (w)))	3164	if (expect_false (ev_is_active (w)))
2376	return;	3165	return;
		3166
		3167	EV_FREQUENT_CHECK;
2377		3168
2378	ev_start (EV_A_ (W)w, ++preparecnt);	3169	ev_start (EV_A_ (W)w, ++preparecnt);
2379	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	3170	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2380	prepares [preparecnt - 1] = w;	3171	prepares [preparecnt - 1] = w;
		3172
		3173	EV_FREQUENT_CHECK;
2381	}	3174	}
2382		3175
2383	void	3176	void
2384	ev_prepare_stop (EV_P_ ev_prepare *w)	3177	ev_prepare_stop (EV_P_ ev_prepare *w)
2385	{	3178	{
2386	clear_pending (EV_A_ (W)w);	3179	clear_pending (EV_A_ (W)w);
2387	if (expect_false (!ev_is_active (w)))	3180	if (expect_false (!ev_is_active (w)))
2388	return;	3181	return;
2389		3182
		3183	EV_FREQUENT_CHECK;
		3184
2390	{	3185	{
2391	int active = ((W)w)->active;	3186	int active = ev_active (w);
		3187
2392	prepares [active - 1] = prepares [--preparecnt];	3188	prepares [active - 1] = prepares [--preparecnt];
2393	((W)prepares [active - 1])->active = active;	3189	ev_active (prepares [active - 1]) = active;
2394	}	3190	}
2395		3191
2396	ev_stop (EV_A_ (W)w);	3192	ev_stop (EV_A_ (W)w);
		3193
		3194	EV_FREQUENT_CHECK;
2397	}	3195	}
2398		3196
2399	void	3197	void
2400	ev_check_start (EV_P_ ev_check *w)	3198	ev_check_start (EV_P_ ev_check *w)
2401	{	3199	{
2402	if (expect_false (ev_is_active (w)))	3200	if (expect_false (ev_is_active (w)))
2403	return;	3201	return;
		3202
		3203	EV_FREQUENT_CHECK;
2404		3204
2405	ev_start (EV_A_ (W)w, ++checkcnt);	3205	ev_start (EV_A_ (W)w, ++checkcnt);
2406	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	3206	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2407	checks [checkcnt - 1] = w;	3207	checks [checkcnt - 1] = w;
		3208
		3209	EV_FREQUENT_CHECK;
2408	}	3210	}
2409		3211
2410	void	3212	void
2411	ev_check_stop (EV_P_ ev_check *w)	3213	ev_check_stop (EV_P_ ev_check *w)
2412	{	3214	{
2413	clear_pending (EV_A_ (W)w);	3215	clear_pending (EV_A_ (W)w);
2414	if (expect_false (!ev_is_active (w)))	3216	if (expect_false (!ev_is_active (w)))
2415	return;	3217	return;
2416		3218
		3219	EV_FREQUENT_CHECK;
		3220
2417	{	3221	{
2418	int active = ((W)w)->active;	3222	int active = ev_active (w);
		3223
2419	checks [active - 1] = checks [--checkcnt];	3224	checks [active - 1] = checks [--checkcnt];
2420	((W)checks [active - 1])->active = active;	3225	ev_active (checks [active - 1]) = active;
2421	}	3226	}
2422		3227
2423	ev_stop (EV_A_ (W)w);	3228	ev_stop (EV_A_ (W)w);
		3229
		3230	EV_FREQUENT_CHECK;
2424	}	3231	}
2425		3232
2426	#if EV_EMBED_ENABLE	3233	#if EV_EMBED_ENABLE
2427	void noinline	3234	void noinline
2428	ev_embed_sweep (EV_P_ ev_embed *w)	3235	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2445	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3252	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2446	{	3253	{
2447	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3254	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2448		3255
2449	{	3256	{
2450	struct ev_loop *loop = w->other;	3257	EV_P = w->other;
2451		3258
2452	while (fdchangecnt)	3259	while (fdchangecnt)
2453	{	3260	{
2454	fd_reify (EV_A);	3261	fd_reify (EV_A);
2455	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3262	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2456	}	3263	}
2457	}	3264	}
2458	}	3265	}
2459		3266
		3267	static void
		3268	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3269	{
		3270	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3271
		3272	ev_embed_stop (EV_A_ w);
		3273
		3274	{
		3275	EV_P = w->other;
		3276
		3277	ev_loop_fork (EV_A);
		3278	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3279	}
		3280
		3281	ev_embed_start (EV_A_ w);
		3282	}
		3283
2460	#if 0	3284	#if 0
2461	static void	3285	static void
2462	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3286	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2463	{	3287	{
2464	ev_idle_stop (EV_A_ idle);	3288	ev_idle_stop (EV_A_ idle);
…		…
2470	{	3294	{
2471	if (expect_false (ev_is_active (w)))	3295	if (expect_false (ev_is_active (w)))
2472	return;	3296	return;
2473		3297
2474	{	3298	{
2475	struct ev_loop *loop = w->other;	3299	EV_P = w->other;
2476	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3300	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2477	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3301	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2478	}	3302	}
		3303
		3304	EV_FREQUENT_CHECK;
2479		3305
2480	ev_set_priority (&w->io, ev_priority (w));	3306	ev_set_priority (&w->io, ev_priority (w));
2481	ev_io_start (EV_A_ &w->io);	3307	ev_io_start (EV_A_ &w->io);
2482		3308
2483	ev_prepare_init (&w->prepare, embed_prepare_cb);	3309	ev_prepare_init (&w->prepare, embed_prepare_cb);
2484	ev_set_priority (&w->prepare, EV_MINPRI);	3310	ev_set_priority (&w->prepare, EV_MINPRI);
2485	ev_prepare_start (EV_A_ &w->prepare);	3311	ev_prepare_start (EV_A_ &w->prepare);
2486		3312
		3313	ev_fork_init (&w->fork, embed_fork_cb);
		3314	ev_fork_start (EV_A_ &w->fork);
		3315
2487	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3316	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2488		3317
2489	ev_start (EV_A_ (W)w, 1);	3318	ev_start (EV_A_ (W)w, 1);
		3319
		3320	EV_FREQUENT_CHECK;
2490	}	3321	}
2491		3322
2492	void	3323	void
2493	ev_embed_stop (EV_P_ ev_embed *w)	3324	ev_embed_stop (EV_P_ ev_embed *w)
2494	{	3325	{
2495	clear_pending (EV_A_ (W)w);	3326	clear_pending (EV_A_ (W)w);
2496	if (expect_false (!ev_is_active (w)))	3327	if (expect_false (!ev_is_active (w)))
2497	return;	3328	return;
2498		3329
		3330	EV_FREQUENT_CHECK;
		3331
2499	ev_io_stop (EV_A_ &w->io);	3332	ev_io_stop (EV_A_ &w->io);
2500	ev_prepare_stop (EV_A_ &w->prepare);	3333	ev_prepare_stop (EV_A_ &w->prepare);
		3334	ev_fork_stop (EV_A_ &w->fork);
2501		3335
2502	ev_stop (EV_A_ (W)w);	3336	EV_FREQUENT_CHECK;
2503	}	3337	}
2504	#endif	3338	#endif
2505		3339
2506	#if EV_FORK_ENABLE	3340	#if EV_FORK_ENABLE
2507	void	3341	void
2508	ev_fork_start (EV_P_ ev_fork *w)	3342	ev_fork_start (EV_P_ ev_fork *w)
2509	{	3343	{
2510	if (expect_false (ev_is_active (w)))	3344	if (expect_false (ev_is_active (w)))
2511	return;	3345	return;
		3346
		3347	EV_FREQUENT_CHECK;
2512		3348
2513	ev_start (EV_A_ (W)w, ++forkcnt);	3349	ev_start (EV_A_ (W)w, ++forkcnt);
2514	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	3350	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2515	forks [forkcnt - 1] = w;	3351	forks [forkcnt - 1] = w;
		3352
		3353	EV_FREQUENT_CHECK;
2516	}	3354	}
2517		3355
2518	void	3356	void
2519	ev_fork_stop (EV_P_ ev_fork *w)	3357	ev_fork_stop (EV_P_ ev_fork *w)
2520	{	3358	{
2521	clear_pending (EV_A_ (W)w);	3359	clear_pending (EV_A_ (W)w);
2522	if (expect_false (!ev_is_active (w)))	3360	if (expect_false (!ev_is_active (w)))
2523	return;	3361	return;
2524		3362
		3363	EV_FREQUENT_CHECK;
		3364
2525	{	3365	{
2526	int active = ((W)w)->active;	3366	int active = ev_active (w);
		3367
2527	forks [active - 1] = forks [--forkcnt];	3368	forks [active - 1] = forks [--forkcnt];
2528	((W)forks [active - 1])->active = active;	3369	ev_active (forks [active - 1]) = active;
2529	}	3370	}
2530		3371
2531	ev_stop (EV_A_ (W)w);	3372	ev_stop (EV_A_ (W)w);
		3373
		3374	EV_FREQUENT_CHECK;
2532	}	3375	}
2533	#endif	3376	#endif
2534		3377
2535	#if EV_ASYNC_ENABLE	3378	#if EV_ASYNC_ENABLE
2536	void	3379	void
…		…
2538	{	3381	{
2539	if (expect_false (ev_is_active (w)))	3382	if (expect_false (ev_is_active (w)))
2540	return;	3383	return;
2541		3384
2542	evpipe_init (EV_A);	3385	evpipe_init (EV_A);
		3386
		3387	EV_FREQUENT_CHECK;
2543		3388
2544	ev_start (EV_A_ (W)w, ++asynccnt);	3389	ev_start (EV_A_ (W)w, ++asynccnt);
2545	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3390	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2546	asyncs [asynccnt - 1] = w;	3391	asyncs [asynccnt - 1] = w;
		3392
		3393	EV_FREQUENT_CHECK;
2547	}	3394	}
2548		3395
2549	void	3396	void
2550	ev_async_stop (EV_P_ ev_async *w)	3397	ev_async_stop (EV_P_ ev_async *w)
2551	{	3398	{
2552	clear_pending (EV_A_ (W)w);	3399	clear_pending (EV_A_ (W)w);
2553	if (expect_false (!ev_is_active (w)))	3400	if (expect_false (!ev_is_active (w)))
2554	return;	3401	return;
2555		3402
		3403	EV_FREQUENT_CHECK;
		3404
2556	{	3405	{
2557	int active = ((W)w)->active;	3406	int active = ev_active (w);
		3407
2558	asyncs [active - 1] = asyncs [--asynccnt];	3408	asyncs [active - 1] = asyncs [--asynccnt];
2559	((W)asyncs [active - 1])->active = active;	3409	ev_active (asyncs [active - 1]) = active;
2560	}	3410	}
2561		3411
2562	ev_stop (EV_A_ (W)w);	3412	ev_stop (EV_A_ (W)w);
		3413
		3414	EV_FREQUENT_CHECK;
2563	}	3415	}
2564		3416
2565	void	3417	void
2566	ev_async_send (EV_P_ ev_async *w)	3418	ev_async_send (EV_P_ ev_async *w)
2567	{	3419	{
…		…
2584	once_cb (EV_P_ struct ev_once *once, int revents)	3436	once_cb (EV_P_ struct ev_once *once, int revents)
2585	{	3437	{
2586	void (*cb)(int revents, void *arg) = once->cb;	3438	void (*cb)(int revents, void *arg) = once->cb;
2587	void *arg = once->arg;	3439	void *arg = once->arg;
2588		3440
2589	ev_io_stop (EV_A_ &once->io);	3441	ev_io_stop (EV_A_ &once->io);
2590	ev_timer_stop (EV_A_ &once->to);	3442	ev_timer_stop (EV_A_ &once->to);
2591	ev_free (once);	3443	ev_free (once);
2592		3444
2593	cb (revents, arg);	3445	cb (revents, arg);
2594	}	3446	}
2595		3447
2596	static void	3448	static void
2597	once_cb_io (EV_P_ ev_io *w, int revents)	3449	once_cb_io (EV_P_ ev_io *w, int revents)
2598	{	3450	{
2599	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3451	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3452
		3453	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2600	}	3454	}
2601		3455
2602	static void	3456	static void
2603	once_cb_to (EV_P_ ev_timer *w, int revents)	3457	once_cb_to (EV_P_ ev_timer *w, int revents)
2604	{	3458	{
2605	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3459	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3460
		3461	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2606	}	3462	}
2607		3463
2608	void	3464	void
2609	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3465	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2610	{	3466	{
…		…
2632	ev_timer_set (&once->to, timeout, 0.);	3488	ev_timer_set (&once->to, timeout, 0.);
2633	ev_timer_start (EV_A_ &once->to);	3489	ev_timer_start (EV_A_ &once->to);
2634	}	3490	}
2635	}	3491	}
2636		3492
		3493	/*****************************************************************************/
		3494
		3495	#if EV_WALK_ENABLE
		3496	void
		3497	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3498	{
		3499	int i, j;
		3500	ev_watcher_list *wl, *wn;
		3501
		3502	if (types & (EV_IO | EV_EMBED))
		3503	for (i = 0; i < anfdmax; ++i)
		3504	for (wl = anfds [i].head; wl; )
		3505	{
		3506	wn = wl->next;
		3507
		3508	#if EV_EMBED_ENABLE
		3509	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3510	{
		3511	if (types & EV_EMBED)
		3512	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3513	}
		3514	else
		3515	#endif
		3516	#if EV_USE_INOTIFY
		3517	if (ev_cb ((ev_io *)wl) == infy_cb)
		3518	;
		3519	else
		3520	#endif
		3521	if ((ev_io *)wl != &pipe_w)
		3522	if (types & EV_IO)
		3523	cb (EV_A_ EV_IO, wl);
		3524
		3525	wl = wn;
		3526	}
		3527
		3528	if (types & (EV_TIMER | EV_STAT))
		3529	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3530	#if EV_STAT_ENABLE
		3531	/*TODO: timer is not always active*/
		3532	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3533	{
		3534	if (types & EV_STAT)
		3535	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3536	}
		3537	else
		3538	#endif
		3539	if (types & EV_TIMER)
		3540	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3541
		3542	#if EV_PERIODIC_ENABLE
		3543	if (types & EV_PERIODIC)
		3544	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3545	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3546	#endif
		3547
		3548	#if EV_IDLE_ENABLE
		3549	if (types & EV_IDLE)
		3550	for (j = NUMPRI; i--; )
		3551	for (i = idlecnt [j]; i--; )
		3552	cb (EV_A_ EV_IDLE, idles [j][i]);
		3553	#endif
		3554
		3555	#if EV_FORK_ENABLE
		3556	if (types & EV_FORK)
		3557	for (i = forkcnt; i--; )
		3558	if (ev_cb (forks [i]) != embed_fork_cb)
		3559	cb (EV_A_ EV_FORK, forks [i]);
		3560	#endif
		3561
		3562	#if EV_ASYNC_ENABLE
		3563	if (types & EV_ASYNC)
		3564	for (i = asynccnt; i--; )
		3565	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3566	#endif
		3567
		3568	if (types & EV_PREPARE)
		3569	for (i = preparecnt; i--; )
		3570	#if EV_EMBED_ENABLE
		3571	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3572	#endif
		3573	cb (EV_A_ EV_PREPARE, prepares [i]);
		3574
		3575	if (types & EV_CHECK)
		3576	for (i = checkcnt; i--; )
		3577	cb (EV_A_ EV_CHECK, checks [i]);
		3578
		3579	if (types & EV_SIGNAL)
		3580	for (i = 0; i < EV_NSIG - 1; ++i)
		3581	for (wl = signals [i].head; wl; )
		3582	{
		3583	wn = wl->next;
		3584	cb (EV_A_ EV_SIGNAL, wl);
		3585	wl = wn;
		3586	}
		3587
		3588	if (types & EV_CHILD)
		3589	for (i = EV_PID_HASHSIZE; i--; )
		3590	for (wl = childs [i]; wl; )
		3591	{
		3592	wn = wl->next;
		3593	cb (EV_A_ EV_CHILD, wl);
		3594	wl = wn;
		3595	}
		3596	/* EV_STAT 0x00001000 /* stat data changed */
		3597	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3598	}
		3599	#endif
		3600
2637	#if EV_MULTIPLICITY	3601	#if EV_MULTIPLICITY
2638	#include "ev_wrap.h"	3602	#include "ev_wrap.h"
2639	#endif	3603	#endif
2640		3604
2641	#ifdef __cplusplus	3605	#ifdef __cplusplus

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