ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.251 by root, Thu May 22 03:42:34 2008 UTC vs.
Revision 1.311 by root, Wed Jul 29 09:36:05 2009 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
		64	# endif
		65
52	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
55	# endif	69	# endif
56	# ifndef EV_USE_REALTIME	70	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	71	# define EV_USE_REALTIME 0
58	# endif	72	# endif
59	# else	73	# else
60	# ifndef EV_USE_MONOTONIC	74	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	75	# define EV_USE_MONOTONIC 0
62	# endif	76	# endif
…		…
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
…		…
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	#if defined (EV_NSIG)
		193	/* use what's provided */
		194	#elif defined (NSIG)
		195	# define EV_NSIG (NSIG)
		196	#elif defined(_NSIG)
		197	# define EV_NSIG (_NSIG)
		198	#elif defined (SIGMAX)
		199	# define EV_NSIG (SIGMAX+1)
		200	#elif defined (SIG_MAX)
		201	# define EV_NSIG (SIG_MAX+1)
		202	#elif defined (_SIG_MAX)
		203	# define EV_NSIG (_SIG_MAX+1)
		204	#elif defined (MAXSIG)
		205	# define EV_NSIG (MAXSIG+1)
		206	#elif defined (MAX_SIG)
		207	# define EV_NSIG (MAX_SIG+1)
		208	#elif defined (SIGARRAYSIZE)
		209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		210	#elif defined (_sys_nsig)
		211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		212	#else
		213	# error "unable to find value for NSIG, please report"
		214	/* to make it compile regardless, just remove the above line */
		215	# define EV_NSIG 65
		216	#endif
		217
		218	#ifndef EV_USE_CLOCK_SYSCALL
		219	# if __linux && __GLIBC__ >= 2
		220	# define EV_USE_CLOCK_SYSCALL 1
		221	# else
		222	# define EV_USE_CLOCK_SYSCALL 0
		223	# endif
		224	#endif
		225
168	#ifndef EV_USE_MONOTONIC	226	#ifndef EV_USE_MONOTONIC
		227	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		228	# define EV_USE_MONOTONIC 1
		229	# else
169	# define EV_USE_MONOTONIC 0	230	# define EV_USE_MONOTONIC 0
		231	# endif
170	#endif	232	#endif
171		233
172	#ifndef EV_USE_REALTIME	234	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174	#endif	236	#endif
175		237
176	#ifndef EV_USE_NANOSLEEP	238	#ifndef EV_USE_NANOSLEEP
		239	# if _POSIX_C_SOURCE >= 199309L
		240	# define EV_USE_NANOSLEEP 1
		241	# else
177	# define EV_USE_NANOSLEEP 0	242	# define EV_USE_NANOSLEEP 0
		243	# endif
178	#endif	244	#endif
179		245
180	#ifndef EV_USE_SELECT	246	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	247	# define EV_USE_SELECT 1
182	#endif	248	#endif
…		…
235	# else	301	# else
236	# define EV_USE_EVENTFD 0	302	# define EV_USE_EVENTFD 0
237	# endif	303	# endif
238	#endif	304	#endif
239		305
		306	#ifndef EV_USE_SIGNALFD
		307	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
		308	# define EV_USE_SIGNALFD 1
		309	# else
		310	# define EV_USE_SIGNALFD 0
		311	# endif
		312	#endif
		313
240	#if 0 /* debugging */	314	#if 0 /* debugging */
241	# define EV_VERIFY 3	315	# define EV_VERIFY 3
242	# define EV_USE_4HEAP 1	316	# define EV_USE_4HEAP 1
243	# define EV_HEAP_CACHE_AT 1	317	# define EV_HEAP_CACHE_AT 1
244	#endif	318	#endif
…		…
253		327
254	#ifndef EV_HEAP_CACHE_AT	328	#ifndef EV_HEAP_CACHE_AT
255	# define EV_HEAP_CACHE_AT !EV_MINIMAL	329	# define EV_HEAP_CACHE_AT !EV_MINIMAL
256	#endif	330	#endif
257		331
		332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		333	/* which makes programs even slower. might work on other unices, too. */
		334	#if EV_USE_CLOCK_SYSCALL
		335	# include <syscall.h>
		336	# ifdef SYS_clock_gettime
		337	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		338	# undef EV_USE_MONOTONIC
		339	# define EV_USE_MONOTONIC 1
		340	# else
		341	# undef EV_USE_CLOCK_SYSCALL
		342	# define EV_USE_CLOCK_SYSCALL 0
		343	# endif
		344	#endif
		345
258	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
259		347
260	#ifndef CLOCK_MONOTONIC	348	#ifndef CLOCK_MONOTONIC
261	# undef EV_USE_MONOTONIC	349	# undef EV_USE_MONOTONIC
262	# define EV_USE_MONOTONIC 0	350	# define EV_USE_MONOTONIC 0
…		…
277	# include <sys/select.h>	365	# include <sys/select.h>
278	# endif	366	# endif
279	#endif	367	#endif
280		368
281	#if EV_USE_INOTIFY	369	#if EV_USE_INOTIFY
		370	# include <sys/utsname.h>
		371	# include <sys/statfs.h>
282	# include <sys/inotify.h>	372	# include <sys/inotify.h>
		373	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		374	# ifndef IN_DONT_FOLLOW
		375	# undef EV_USE_INOTIFY
		376	# define EV_USE_INOTIFY 0
		377	# endif
283	#endif	378	#endif
284		379
285	#if EV_SELECT_IS_WINSOCKET	380	#if EV_SELECT_IS_WINSOCKET
286	# include <winsock.h>	381	# include <winsock.h>
287	#endif	382	#endif
288		383
289	#if EV_USE_EVENTFD	384	#if EV_USE_EVENTFD
290	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	385	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
291	# include <stdint.h>	386	# include <stdint.h>
		387	# ifndef EFD_NONBLOCK
		388	# define EFD_NONBLOCK O_NONBLOCK
		389	# endif
		390	# ifndef EFD_CLOEXEC
		391	# ifdef O_CLOEXEC
		392	# define EFD_CLOEXEC O_CLOEXEC
		393	# else
		394	# define EFD_CLOEXEC 02000000
		395	# endif
		396	# endif
292	# ifdef __cplusplus	397	# ifdef __cplusplus
293	extern "C" {	398	extern "C" {
294	# endif	399	# endif
295	int eventfd (unsigned int initval, int flags);	400	int eventfd (unsigned int initval, int flags);
296	# ifdef __cplusplus	401	# ifdef __cplusplus
297	}	402	}
298	# endif	403	# endif
		404	#endif
		405
		406	#if EV_USE_SIGNALFD
		407	# include <sys/signalfd.h>
299	#endif	408	#endif
300		409
301	/**/	410	/**/
302		411
303	#if EV_VERIFY >= 3	412	#if EV_VERIFY >= 3
…		…
339	# define inline_speed static noinline	448	# define inline_speed static noinline
340	#else	449	#else
341	# define inline_speed static inline	450	# define inline_speed static inline
342	#endif	451	#endif
343		452
344	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	453	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		454
		455	#if EV_MINPRI == EV_MAXPRI
		456	# define ABSPRI(w) (((W)w), 0)
		457	#else
345	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	458	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		459	#endif
346		460
347	#define EMPTY /* required for microsofts broken pseudo-c compiler */	461	#define EMPTY /* required for microsofts broken pseudo-c compiler */
348	#define EMPTY2(a,b) /* used to suppress some warnings */	462	#define EMPTY2(a,b) /* used to suppress some warnings */
349		463
350	typedef ev_watcher *W;	464	typedef ev_watcher *W;
…		…
352	typedef ev_watcher_time *WT;	466	typedef ev_watcher_time *WT;
353		467
354	#define ev_active(w) ((W)(w))->active	468	#define ev_active(w) ((W)(w))->active
355	#define ev_at(w) ((WT)(w))->at	469	#define ev_at(w) ((WT)(w))->at
356		470
357	#if EV_USE_MONOTONIC	471	#if EV_USE_REALTIME
358	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	472	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
359	/* giving it a reasonably high chance of working on typical architetcures */	473	/* giving it a reasonably high chance of working on typical architetcures */
		474	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		475	#endif
		476
		477	#if EV_USE_MONOTONIC
360	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	478	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
361	#endif	479	#endif
362		480
363	#ifdef _WIN32	481	#ifdef _WIN32
364	# include "ev_win32.c"	482	# include "ev_win32.c"
…		…
373	{	491	{
374	syserr_cb = cb;	492	syserr_cb = cb;
375	}	493	}
376		494
377	static void noinline	495	static void noinline
378	syserr (const char *msg)	496	ev_syserr (const char *msg)
379	{	497	{
380	if (!msg)	498	if (!msg)
381	msg = "(libev) system error";	499	msg = "(libev) system error";
382		500
383	if (syserr_cb)	501	if (syserr_cb)
…		…
429	#define ev_malloc(size) ev_realloc (0, (size))	547	#define ev_malloc(size) ev_realloc (0, (size))
430	#define ev_free(ptr) ev_realloc ((ptr), 0)	548	#define ev_free(ptr) ev_realloc ((ptr), 0)
431		549
432	/*****************************************************************************/	550	/*****************************************************************************/
433		551
		552	/* set in reify when reification needed */
		553	#define EV_ANFD_REIFY 1
		554
		555	/* file descriptor info structure */
434	typedef struct	556	typedef struct
435	{	557	{
436	WL head;	558	WL head;
437	unsigned char events;	559	unsigned char events; /* the events watched for */
		560	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
		561	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
438	unsigned char reify;	562	unsigned char unused;
		563	#if EV_USE_EPOLL
		564	unsigned int egen; /* generation counter to counter epoll bugs */
		565	#endif
439	#if EV_SELECT_IS_WINSOCKET	566	#if EV_SELECT_IS_WINSOCKET
440	SOCKET handle;	567	SOCKET handle;
441	#endif	568	#endif
442	} ANFD;	569	} ANFD;
443		570
		571	/* stores the pending event set for a given watcher */
444	typedef struct	572	typedef struct
445	{	573	{
446	W w;	574	W w;
447	int events;	575	int events; /* the pending event set for the given watcher */
448	} ANPENDING;	576	} ANPENDING;
449		577
450	#if EV_USE_INOTIFY	578	#if EV_USE_INOTIFY
451	/* hash table entry per inotify-id */	579	/* hash table entry per inotify-id */
452	typedef struct	580	typedef struct
…		…
455	} ANFS;	583	} ANFS;
456	#endif	584	#endif
457		585
458	/* Heap Entry */	586	/* Heap Entry */
459	#if EV_HEAP_CACHE_AT	587	#if EV_HEAP_CACHE_AT
		588	/* a heap element */
460	typedef struct {	589	typedef struct {
461	ev_tstamp at;	590	ev_tstamp at;
462	WT w;	591	WT w;
463	} ANHE;	592	} ANHE;
464		593
465	#define ANHE_w(he) (he).w /* access watcher, read-write */	594	#define ANHE_w(he) (he).w /* access watcher, read-write */
466	#define ANHE_at(he) (he).at /* access cached at, read-only */	595	#define ANHE_at(he) (he).at /* access cached at, read-only */
467	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	596	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
468	#else	597	#else
		598	/* a heap element */
469	typedef WT ANHE;	599	typedef WT ANHE;
470		600
471	#define ANHE_w(he) (he)	601	#define ANHE_w(he) (he)
472	#define ANHE_at(he) (he)->at	602	#define ANHE_at(he) (he)->at
473	#define ANHE_at_cache(he)	603	#define ANHE_at_cache(he)
…		…
497		627
498	static int ev_default_loop_ptr;	628	static int ev_default_loop_ptr;
499		629
500	#endif	630	#endif
501		631
		632	#if EV_MINIMAL < 2
		633	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		634	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		635	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		636	#else
		637	# define EV_RELEASE_CB (void)0
		638	# define EV_ACQUIRE_CB (void)0
		639	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		640	#endif
		641
		642	#define EVUNLOOP_RECURSE 0x80
		643
502	/*****************************************************************************/	644	/*****************************************************************************/
503		645
		646	#ifndef EV_HAVE_EV_TIME
504	ev_tstamp	647	ev_tstamp
505	ev_time (void)	648	ev_time (void)
506	{	649	{
507	#if EV_USE_REALTIME	650	#if EV_USE_REALTIME
		651	if (expect_true (have_realtime))
		652	{
508	struct timespec ts;	653	struct timespec ts;
509	clock_gettime (CLOCK_REALTIME, &ts);	654	clock_gettime (CLOCK_REALTIME, &ts);
510	return ts.tv_sec + ts.tv_nsec * 1e-9;	655	return ts.tv_sec + ts.tv_nsec * 1e-9;
511	#else	656	}
		657	#endif
		658
512	struct timeval tv;	659	struct timeval tv;
513	gettimeofday (&tv, 0);	660	gettimeofday (&tv, 0);
514	return tv.tv_sec + tv.tv_usec * 1e-6;	661	return tv.tv_sec + tv.tv_usec * 1e-6;
515	#endif
516	}	662	}
		663	#endif
517		664
518	ev_tstamp inline_size	665	inline_size ev_tstamp
519	get_clock (void)	666	get_clock (void)
520	{	667	{
521	#if EV_USE_MONOTONIC	668	#if EV_USE_MONOTONIC
522	if (expect_true (have_monotonic))	669	if (expect_true (have_monotonic))
523	{	670	{
…		…
556	struct timeval tv;	703	struct timeval tv;
557		704
558	tv.tv_sec = (time_t)delay;	705	tv.tv_sec = (time_t)delay;
559	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	706	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560		707
		708	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		709	/* something not guaranteed by newer posix versions, but guaranteed */
		710	/* by older ones */
561	select (0, 0, 0, 0, &tv);	711	select (0, 0, 0, 0, &tv);
562	#endif	712	#endif
563	}	713	}
564	}	714	}
565		715
566	/*****************************************************************************/	716	/*****************************************************************************/
567		717
568	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	718	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
569		719
570	int inline_size	720	/* find a suitable new size for the given array, */
		721	/* hopefully by rounding to a ncie-to-malloc size */
		722	inline_size int
571	array_nextsize (int elem, int cur, int cnt)	723	array_nextsize (int elem, int cur, int cnt)
572	{	724	{
573	int ncur = cur + 1;	725	int ncur = cur + 1;
574		726
575	do	727	do
…		…
592	array_realloc (int elem, void *base, int *cur, int cnt)	744	array_realloc (int elem, void *base, int *cur, int cnt)
593	{	745	{
594	*cur = array_nextsize (elem, *cur, cnt);	746	*cur = array_nextsize (elem, *cur, cnt);
595	return ev_realloc (base, elem * *cur);	747	return ev_realloc (base, elem * *cur);
596	}	748	}
		749
		750	#define array_init_zero(base,count) \
		751	memset ((void *)(base), 0, sizeof (*(base)) * (count))
597		752
598	#define array_needsize(type,base,cur,cnt,init) \	753	#define array_needsize(type,base,cur,cnt,init) \
599	if (expect_false ((cnt) > (cur))) \	754	if (expect_false ((cnt) > (cur))) \
600	{ \	755	{ \
601	int ocur_ = (cur); \	756	int ocur_ = (cur); \
…		…
613	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	768	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
614	}	769	}
615	#endif	770	#endif
616		771
617	#define array_free(stem, idx) \	772	#define array_free(stem, idx) \
618	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	773	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
619		774
620	/*****************************************************************************/	775	/*****************************************************************************/
		776
		777	/* dummy callback for pending events */
		778	static void noinline
		779	pendingcb (EV_P_ ev_prepare *w, int revents)
		780	{
		781	}
621		782
622	void noinline	783	void noinline
623	ev_feed_event (EV_P_ void *w, int revents)	784	ev_feed_event (EV_P_ void *w, int revents)
624	{	785	{
625	W w_ = (W)w;	786	W w_ = (W)w;
…		…
634	pendings [pri][w_->pending - 1].w = w_;	795	pendings [pri][w_->pending - 1].w = w_;
635	pendings [pri][w_->pending - 1].events = revents;	796	pendings [pri][w_->pending - 1].events = revents;
636	}	797	}
637	}	798	}
638		799
639	void inline_speed	800	inline_speed void
		801	feed_reverse (EV_P_ W w)
		802	{
		803	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		804	rfeeds [rfeedcnt++] = w;
		805	}
		806
		807	inline_size void
		808	feed_reverse_done (EV_P_ int revents)
		809	{
		810	do
		811	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		812	while (rfeedcnt);
		813	}
		814
		815	inline_speed void
640	queue_events (EV_P_ W *events, int eventcnt, int type)	816	queue_events (EV_P_ W *events, int eventcnt, int type)
641	{	817	{
642	int i;	818	int i;
643		819
644	for (i = 0; i < eventcnt; ++i)	820	for (i = 0; i < eventcnt; ++i)
645	ev_feed_event (EV_A_ events [i], type);	821	ev_feed_event (EV_A_ events [i], type);
646	}	822	}
647		823
648	/*****************************************************************************/	824	/*****************************************************************************/
649		825
650	void inline_size	826	inline_speed void
651	anfds_init (ANFD *base, int count)
652	{
653	while (count--)
654	{
655	base->head = 0;
656	base->events = EV_NONE;
657	base->reify = 0;
658
659	++base;
660	}
661	}
662
663	void inline_speed
664	fd_event (EV_P_ int fd, int revents)	827	fd_event_nc (EV_P_ int fd, int revents)
665	{	828	{
666	ANFD *anfd = anfds + fd;	829	ANFD *anfd = anfds + fd;
667	ev_io *w;	830	ev_io *w;
668		831
669	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	832	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
673	if (ev)	836	if (ev)
674	ev_feed_event (EV_A_ (W)w, ev);	837	ev_feed_event (EV_A_ (W)w, ev);
675	}	838	}
676	}	839	}
677		840
		841	/* do not submit kernel events for fds that have reify set */
		842	/* because that means they changed while we were polling for new events */
		843	inline_speed void
		844	fd_event (EV_P_ int fd, int revents)
		845	{
		846	ANFD *anfd = anfds + fd;
		847
		848	if (expect_true (!anfd->reify))
		849	fd_event_nc (EV_A_ fd, revents);
		850	}
		851
678	void	852	void
679	ev_feed_fd_event (EV_P_ int fd, int revents)	853	ev_feed_fd_event (EV_P_ int fd, int revents)
680	{	854	{
681	if (fd >= 0 && fd < anfdmax)	855	if (fd >= 0 && fd < anfdmax)
682	fd_event (EV_A_ fd, revents);	856	fd_event_nc (EV_A_ fd, revents);
683	}	857	}
684		858
685	void inline_size	859	/* make sure the external fd watch events are in-sync */
		860	/* with the kernel/libev internal state */
		861	inline_size void
686	fd_reify (EV_P)	862	fd_reify (EV_P)
687	{	863	{
688	int i;	864	int i;
689		865
690	for (i = 0; i < fdchangecnt; ++i)	866	for (i = 0; i < fdchangecnt; ++i)
…		…
699	events |= (unsigned char)w->events;	875	events |= (unsigned char)w->events;
700		876
701	#if EV_SELECT_IS_WINSOCKET	877	#if EV_SELECT_IS_WINSOCKET
702	if (events)	878	if (events)
703	{	879	{
704	unsigned long argp;	880	unsigned long arg;
705	#ifdef EV_FD_TO_WIN32_HANDLE	881	#ifdef EV_FD_TO_WIN32_HANDLE
706	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	882	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707	#else	883	#else
708	anfd->handle = _get_osfhandle (fd);	884	anfd->handle = _get_osfhandle (fd);
709	#endif	885	#endif
710	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	886	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
711	}	887	}
712	#endif	888	#endif
713		889
714	{	890	{
715	unsigned char o_events = anfd->events;	891	unsigned char o_events = anfd->events;
716	unsigned char o_reify = anfd->reify;	892	unsigned char o_reify = anfd->reify;
717		893
718	anfd->reify = 0;	894	anfd->reify = 0;
719	anfd->events = events;	895	anfd->events = events;
720		896
721	if (o_events != events || o_reify & EV_IOFDSET)	897	if (o_events != events || o_reify & EV__IOFDSET)
722	backend_modify (EV_A_ fd, o_events, events);	898	backend_modify (EV_A_ fd, o_events, events);
723	}	899	}
724	}	900	}
725		901
726	fdchangecnt = 0;	902	fdchangecnt = 0;
727	}	903	}
728		904
729	void inline_size	905	/* something about the given fd changed */
		906	inline_size void
730	fd_change (EV_P_ int fd, int flags)	907	fd_change (EV_P_ int fd, int flags)
731	{	908	{
732	unsigned char reify = anfds [fd].reify;	909	unsigned char reify = anfds [fd].reify;
733	anfds [fd].reify |= flags;	910	anfds [fd].reify |= flags;
734		911
…		…
738	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	915	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
739	fdchanges [fdchangecnt - 1] = fd;	916	fdchanges [fdchangecnt - 1] = fd;
740	}	917	}
741	}	918	}
742		919
743	void inline_speed	920	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		921	inline_speed void
744	fd_kill (EV_P_ int fd)	922	fd_kill (EV_P_ int fd)
745	{	923	{
746	ev_io *w;	924	ev_io *w;
747		925
748	while ((w = (ev_io *)anfds [fd].head))	926	while ((w = (ev_io *)anfds [fd].head))
…		…
750	ev_io_stop (EV_A_ w);	928	ev_io_stop (EV_A_ w);
751	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	929	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
752	}	930	}
753	}	931	}
754		932
755	int inline_size	933	/* check whether the given fd is atcually valid, for error recovery */
		934	inline_size int
756	fd_valid (int fd)	935	fd_valid (int fd)
757	{	936	{
758	#ifdef _WIN32	937	#ifdef _WIN32
759	return _get_osfhandle (fd) != -1;	938	return _get_osfhandle (fd) != -1;
760	#else	939	#else
…		…
768	{	947	{
769	int fd;	948	int fd;
770		949
771	for (fd = 0; fd < anfdmax; ++fd)	950	for (fd = 0; fd < anfdmax; ++fd)
772	if (anfds [fd].events)	951	if (anfds [fd].events)
773	if (!fd_valid (fd) == -1 && errno == EBADF)	952	if (!fd_valid (fd) && errno == EBADF)
774	fd_kill (EV_A_ fd);	953	fd_kill (EV_A_ fd);
775	}	954	}
776		955
777	/* called on ENOMEM in select/poll to kill some fds and retry */	956	/* called on ENOMEM in select/poll to kill some fds and retry */
778	static void noinline	957	static void noinline
…		…
782		961
783	for (fd = anfdmax; fd--; )	962	for (fd = anfdmax; fd--; )
784	if (anfds [fd].events)	963	if (anfds [fd].events)
785	{	964	{
786	fd_kill (EV_A_ fd);	965	fd_kill (EV_A_ fd);
787	return;	966	break;
788	}	967	}
789	}	968	}
790		969
791	/* usually called after fork if backend needs to re-arm all fds from scratch */	970	/* usually called after fork if backend needs to re-arm all fds from scratch */
792	static void noinline	971	static void noinline
…		…
796		975
797	for (fd = 0; fd < anfdmax; ++fd)	976	for (fd = 0; fd < anfdmax; ++fd)
798	if (anfds [fd].events)	977	if (anfds [fd].events)
799	{	978	{
800	anfds [fd].events = 0;	979	anfds [fd].events = 0;
		980	anfds [fd].emask = 0;
801	fd_change (EV_A_ fd, EV_IOFDSET | 1);	981	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
802	}	982	}
803	}	983	}
804		984
805	/*****************************************************************************/	985	/*****************************************************************************/
806		986
…		…
822	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	1002	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
823	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	1003	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
824	#define UPHEAP_DONE(p,k) ((p) == (k))	1004	#define UPHEAP_DONE(p,k) ((p) == (k))
825		1005
826	/* away from the root */	1006	/* away from the root */
827	void inline_speed	1007	inline_speed void
828	downheap (ANHE *heap, int N, int k)	1008	downheap (ANHE *heap, int N, int k)
829	{	1009	{
830	ANHE he = heap [k];	1010	ANHE he = heap [k];
831	ANHE *E = heap + N + HEAP0;	1011	ANHE *E = heap + N + HEAP0;
832		1012
…		…
872	#define HEAP0 1	1052	#define HEAP0 1
873	#define HPARENT(k) ((k) >> 1)	1053	#define HPARENT(k) ((k) >> 1)
874	#define UPHEAP_DONE(p,k) (!(p))	1054	#define UPHEAP_DONE(p,k) (!(p))
875		1055
876	/* away from the root */	1056	/* away from the root */
877	void inline_speed	1057	inline_speed void
878	downheap (ANHE *heap, int N, int k)	1058	downheap (ANHE *heap, int N, int k)
879	{	1059	{
880	ANHE he = heap [k];	1060	ANHE he = heap [k];
881		1061
882	for (;;)	1062	for (;;)
883	{	1063	{
884	int c = k << 1;	1064	int c = k << 1;
885		1065
886	if (c > N + HEAP0 - 1)	1066	if (c >= N + HEAP0)
887	break;	1067	break;
888		1068
889	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1069	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
890	? 1 : 0;	1070	? 1 : 0;
891		1071
…		…
902	ev_active (ANHE_w (he)) = k;	1082	ev_active (ANHE_w (he)) = k;
903	}	1083	}
904	#endif	1084	#endif
905		1085
906	/* towards the root */	1086	/* towards the root */
907	void inline_speed	1087	inline_speed void
908	upheap (ANHE *heap, int k)	1088	upheap (ANHE *heap, int k)
909	{	1089	{
910	ANHE he = heap [k];	1090	ANHE he = heap [k];
911		1091
912	for (;;)	1092	for (;;)
…		…
923		1103
924	heap [k] = he;	1104	heap [k] = he;
925	ev_active (ANHE_w (he)) = k;	1105	ev_active (ANHE_w (he)) = k;
926	}	1106	}
927		1107
928	void inline_size	1108	/* move an element suitably so it is in a correct place */
		1109	inline_size void
929	adjustheap (ANHE *heap, int N, int k)	1110	adjustheap (ANHE *heap, int N, int k)
930	{	1111	{
931	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1112	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
932	upheap (heap, k);	1113	upheap (heap, k);
933	else	1114	else
934	downheap (heap, N, k);	1115	downheap (heap, N, k);
935	}	1116	}
936		1117
937	/* rebuild the heap: this function is used only once and executed rarely */	1118	/* rebuild the heap: this function is used only once and executed rarely */
938	void inline_size	1119	inline_size void
939	reheap (ANHE *heap, int N)	1120	reheap (ANHE *heap, int N)
940	{	1121	{
941	int i;	1122	int i;
942		1123
943	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1124	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
946	upheap (heap, i + HEAP0);	1127	upheap (heap, i + HEAP0);
947	}	1128	}
948		1129
949	/*****************************************************************************/	1130	/*****************************************************************************/
950		1131
		1132	/* associate signal watchers to a signal signal */
951	typedef struct	1133	typedef struct
952	{	1134	{
		1135	EV_ATOMIC_T pending;
		1136	#if EV_MULTIPLICITY
		1137	EV_P;
		1138	#endif
953	WL head;	1139	WL head;
954	EV_ATOMIC_T gotsig;
955	} ANSIG;	1140	} ANSIG;
956		1141
957	static ANSIG *signals;	1142	static ANSIG signals [EV_NSIG - 1];
958	static int signalmax;
959
960	static EV_ATOMIC_T gotsig;
961
962	void inline_size
963	signals_init (ANSIG *base, int count)
964	{
965	while (count--)
966	{
967	base->head = 0;
968	base->gotsig = 0;
969
970	++base;
971	}
972	}
973		1143
974	/*****************************************************************************/	1144	/*****************************************************************************/
975		1145
976	void inline_speed	1146	/* used to prepare libev internal fd's */
		1147	/* this is not fork-safe */
		1148	inline_speed void
977	fd_intern (int fd)	1149	fd_intern (int fd)
978	{	1150	{
979	#ifdef _WIN32	1151	#ifdef _WIN32
980	int arg = 1;	1152	unsigned long arg = 1;
981	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1153	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
982	#else	1154	#else
983	fcntl (fd, F_SETFD, FD_CLOEXEC);	1155	fcntl (fd, F_SETFD, FD_CLOEXEC);
984	fcntl (fd, F_SETFL, O_NONBLOCK);	1156	fcntl (fd, F_SETFL, O_NONBLOCK);
985	#endif	1157	#endif
986	}	1158	}
987		1159
988	static void noinline	1160	static void noinline
989	evpipe_init (EV_P)	1161	evpipe_init (EV_P)
990	{	1162	{
991	if (!ev_is_active (&pipeev))	1163	if (!ev_is_active (&pipe_w))
992	{	1164	{
993	#if EV_USE_EVENTFD	1165	#if EV_USE_EVENTFD
		1166	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1167	if (evfd < 0 && errno == EINVAL)
994	if ((evfd = eventfd (0, 0)) >= 0)	1168	evfd = eventfd (0, 0);
		1169
		1170	if (evfd >= 0)
995	{	1171	{
996	evpipe [0] = -1;	1172	evpipe [0] = -1;
997	fd_intern (evfd);	1173	fd_intern (evfd); /* doing it twice doesn't hurt */
998	ev_io_set (&pipeev, evfd, EV_READ);	1174	ev_io_set (&pipe_w, evfd, EV_READ);
999	}	1175	}
1000	else	1176	else
1001	#endif	1177	#endif
1002	{	1178	{
1003	while (pipe (evpipe))	1179	while (pipe (evpipe))
1004	syserr ("(libev) error creating signal/async pipe");	1180	ev_syserr ("(libev) error creating signal/async pipe");
1005		1181
1006	fd_intern (evpipe [0]);	1182	fd_intern (evpipe [0]);
1007	fd_intern (evpipe [1]);	1183	fd_intern (evpipe [1]);
1008	ev_io_set (&pipeev, evpipe [0], EV_READ);	1184	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1009	}	1185	}
1010		1186
1011	ev_io_start (EV_A_ &pipeev);	1187	ev_io_start (EV_A_ &pipe_w);
1012	ev_unref (EV_A); /* watcher should not keep loop alive */	1188	ev_unref (EV_A); /* watcher should not keep loop alive */
1013	}	1189	}
1014	}	1190	}
1015		1191
1016	void inline_size	1192	inline_size void
1017	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1193	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1018	{	1194	{
1019	if (!*flag)	1195	if (!*flag)
1020	{	1196	{
1021	int old_errno = errno; /* save errno because write might clobber it */	1197	int old_errno = errno; /* save errno because write might clobber it */
…		…
1034		1210
1035	errno = old_errno;	1211	errno = old_errno;
1036	}	1212	}
1037	}	1213	}
1038		1214
		1215	/* called whenever the libev signal pipe */
		1216	/* got some events (signal, async) */
1039	static void	1217	static void
1040	pipecb (EV_P_ ev_io *iow, int revents)	1218	pipecb (EV_P_ ev_io *iow, int revents)
1041	{	1219	{
		1220	int i;
		1221
1042	#if EV_USE_EVENTFD	1222	#if EV_USE_EVENTFD
1043	if (evfd >= 0)	1223	if (evfd >= 0)
1044	{	1224	{
1045	uint64_t counter;	1225	uint64_t counter;
1046	read (evfd, &counter, sizeof (uint64_t));	1226	read (evfd, &counter, sizeof (uint64_t));
…		…
1050	{	1230	{
1051	char dummy;	1231	char dummy;
1052	read (evpipe [0], &dummy, 1);	1232	read (evpipe [0], &dummy, 1);
1053	}	1233	}
1054		1234
1055	if (gotsig && ev_is_default_loop (EV_A))	1235	if (sig_pending)
1056	{	1236	{
1057	int signum;	1237	sig_pending = 0;
1058	gotsig = 0;
1059		1238
1060	for (signum = signalmax; signum--; )	1239	for (i = EV_NSIG - 1; i--; )
1061	if (signals [signum].gotsig)	1240	if (expect_false (signals [i].pending))
1062	ev_feed_signal_event (EV_A_ signum + 1);	1241	ev_feed_signal_event (EV_A_ i + 1);
1063	}	1242	}
1064		1243
1065	#if EV_ASYNC_ENABLE	1244	#if EV_ASYNC_ENABLE
1066	if (gotasync)	1245	if (async_pending)
1067	{	1246	{
1068	int i;	1247	async_pending = 0;
1069	gotasync = 0;
1070		1248
1071	for (i = asynccnt; i--; )	1249	for (i = asynccnt; i--; )
1072	if (asyncs [i]->sent)	1250	if (asyncs [i]->sent)
1073	{	1251	{
1074	asyncs [i]->sent = 0;	1252	asyncs [i]->sent = 0;
…		…
1082		1260
1083	static void	1261	static void
1084	ev_sighandler (int signum)	1262	ev_sighandler (int signum)
1085	{	1263	{
1086	#if EV_MULTIPLICITY	1264	#if EV_MULTIPLICITY
1087	struct ev_loop *loop = &default_loop_struct;	1265	EV_P = signals [signum - 1].loop;
1088	#endif	1266	#endif
1089		1267
1090	#if _WIN32	1268	#if _WIN32
1091	signal (signum, ev_sighandler);	1269	signal (signum, ev_sighandler);
1092	#endif	1270	#endif
1093		1271
1094	signals [signum - 1].gotsig = 1;	1272	signals [signum - 1].pending = 1;
1095	evpipe_write (EV_A_ &gotsig);	1273	evpipe_write (EV_A_ &sig_pending);
1096	}	1274	}
1097		1275
1098	void noinline	1276	void noinline
1099	ev_feed_signal_event (EV_P_ int signum)	1277	ev_feed_signal_event (EV_P_ int signum)
1100	{	1278	{
1101	WL w;	1279	WL w;
1102		1280
		1281	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1282	return;
		1283
		1284	--signum;
		1285
1103	#if EV_MULTIPLICITY	1286	#if EV_MULTIPLICITY
1104	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1287	/* it is permissible to try to feed a signal to the wrong loop */
1105	#endif	1288	/* or, likely more useful, feeding a signal nobody is waiting for */
1106		1289
1107	--signum;	1290	if (expect_false (signals [signum].loop != EV_A))
1108
1109	if (signum < 0 || signum >= signalmax)
1110	return;	1291	return;
		1292	#endif
1111		1293
1112	signals [signum].gotsig = 0;	1294	signals [signum].pending = 0;
1113		1295
1114	for (w = signals [signum].head; w; w = w->next)	1296	for (w = signals [signum].head; w; w = w->next)
1115	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1297	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1116	}	1298	}
1117		1299
		1300	#if EV_USE_SIGNALFD
		1301	static void
		1302	sigfdcb (EV_P_ ev_io *iow, int revents)
		1303	{
		1304	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1305
		1306	for (;;)
		1307	{
		1308	ssize_t res = read (sigfd, si, sizeof (si));
		1309
		1310	/* not ISO-C, as res might be -1, but works with SuS */
		1311	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1312	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1313
		1314	if (res < (ssize_t)sizeof (si))
		1315	break;
		1316	}
		1317	}
		1318	#endif
		1319
1118	/*****************************************************************************/	1320	/*****************************************************************************/
1119		1321
1120	static WL childs [EV_PID_HASHSIZE];	1322	static WL childs [EV_PID_HASHSIZE];
1121		1323
1122	#ifndef _WIN32	1324	#ifndef _WIN32
…		…
1125		1327
1126	#ifndef WIFCONTINUED	1328	#ifndef WIFCONTINUED
1127	# define WIFCONTINUED(status) 0	1329	# define WIFCONTINUED(status) 0
1128	#endif	1330	#endif
1129		1331
1130	void inline_speed	1332	/* handle a single child status event */
		1333	inline_speed void
1131	child_reap (EV_P_ int chain, int pid, int status)	1334	child_reap (EV_P_ int chain, int pid, int status)
1132	{	1335	{
1133	ev_child *w;	1336	ev_child *w;
1134	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1337	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1135		1338
…		…
1148		1351
1149	#ifndef WCONTINUED	1352	#ifndef WCONTINUED
1150	# define WCONTINUED 0	1353	# define WCONTINUED 0
1151	#endif	1354	#endif
1152		1355
		1356	/* called on sigchld etc., calls waitpid */
1153	static void	1357	static void
1154	childcb (EV_P_ ev_signal *sw, int revents)	1358	childcb (EV_P_ ev_signal *sw, int revents)
1155	{	1359	{
1156	int pid, status;	1360	int pid, status;
1157		1361
…		…
1238	/* kqueue is borked on everything but netbsd apparently */	1442	/* kqueue is borked on everything but netbsd apparently */
1239	/* it usually doesn't work correctly on anything but sockets and pipes */	1443	/* it usually doesn't work correctly on anything but sockets and pipes */
1240	flags &= ~EVBACKEND_KQUEUE;	1444	flags &= ~EVBACKEND_KQUEUE;
1241	#endif	1445	#endif
1242	#ifdef __APPLE__	1446	#ifdef __APPLE__
1243	// flags &= ~EVBACKEND_KQUEUE; for documentation	1447	/* only select works correctly on that "unix-certified" platform */
1244	flags &= ~EVBACKEND_POLL;	1448	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1449	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1245	#endif	1450	#endif
1246		1451
1247	return flags;	1452	return flags;
1248	}	1453	}
1249		1454
…		…
1263	ev_backend (EV_P)	1468	ev_backend (EV_P)
1264	{	1469	{
1265	return backend;	1470	return backend;
1266	}	1471	}
1267		1472
		1473	#if EV_MINIMAL < 2
1268	unsigned int	1474	unsigned int
1269	ev_loop_count (EV_P)	1475	ev_loop_count (EV_P)
1270	{	1476	{
1271	return loop_count;	1477	return loop_count;
1272	}	1478	}
1273		1479
		1480	unsigned int
		1481	ev_loop_depth (EV_P)
		1482	{
		1483	return loop_depth;
		1484	}
		1485
1274	void	1486	void
1275	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1487	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1276	{	1488	{
1277	io_blocktime = interval;	1489	io_blocktime = interval;
1278	}	1490	}
…		…
1281	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1493	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1282	{	1494	{
1283	timeout_blocktime = interval;	1495	timeout_blocktime = interval;
1284	}	1496	}
1285		1497
		1498	void
		1499	ev_set_userdata (EV_P_ void *data)
		1500	{
		1501	userdata = data;
		1502	}
		1503
		1504	void *
		1505	ev_userdata (EV_P)
		1506	{
		1507	return userdata;
		1508	}
		1509
		1510	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1511	{
		1512	invoke_cb = invoke_pending_cb;
		1513	}
		1514
		1515	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1516	{
		1517	release_cb = release;
		1518	acquire_cb = acquire;
		1519	}
		1520	#endif
		1521
		1522	/* initialise a loop structure, must be zero-initialised */
1286	static void noinline	1523	static void noinline
1287	loop_init (EV_P_ unsigned int flags)	1524	loop_init (EV_P_ unsigned int flags)
1288	{	1525	{
1289	if (!backend)	1526	if (!backend)
1290	{	1527	{
		1528	#if EV_USE_REALTIME
		1529	if (!have_realtime)
		1530	{
		1531	struct timespec ts;
		1532
		1533	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1534	have_realtime = 1;
		1535	}
		1536	#endif
		1537
1291	#if EV_USE_MONOTONIC	1538	#if EV_USE_MONOTONIC
		1539	if (!have_monotonic)
1292	{	1540	{
1293	struct timespec ts;	1541	struct timespec ts;
		1542
1294	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1543	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1295	have_monotonic = 1;	1544	have_monotonic = 1;
1296	}	1545	}
1297	#endif	1546	#endif
		1547
		1548	/* pid check not overridable via env */
		1549	#ifndef _WIN32
		1550	if (flags & EVFLAG_FORKCHECK)
		1551	curpid = getpid ();
		1552	#endif
		1553
		1554	if (!(flags & EVFLAG_NOENV)
		1555	&& !enable_secure ()
		1556	&& getenv ("LIBEV_FLAGS"))
		1557	flags = atoi (getenv ("LIBEV_FLAGS"));
1298		1558
1299	ev_rt_now = ev_time ();	1559	ev_rt_now = ev_time ();
1300	mn_now = get_clock ();	1560	mn_now = get_clock ();
1301	now_floor = mn_now;	1561	now_floor = mn_now;
1302	rtmn_diff = ev_rt_now - mn_now;	1562	rtmn_diff = ev_rt_now - mn_now;
		1563	#if EV_MINIMAL < 2
		1564	invoke_cb = ev_invoke_pending;
		1565	#endif
1303		1566
1304	io_blocktime = 0.;	1567	io_blocktime = 0.;
1305	timeout_blocktime = 0.;	1568	timeout_blocktime = 0.;
1306	backend = 0;	1569	backend = 0;
1307	backend_fd = -1;	1570	backend_fd = -1;
1308	gotasync = 0;	1571	sig_pending = 0;
		1572	#if EV_ASYNC_ENABLE
		1573	async_pending = 0;
		1574	#endif
1309	#if EV_USE_INOTIFY	1575	#if EV_USE_INOTIFY
1310	fs_fd = -2;	1576	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1311	#endif	1577	#endif
1312		1578	#if EV_USE_SIGNALFD
1313	/* pid check not overridable via env */	1579	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1314	#ifndef _WIN32
1315	if (flags & EVFLAG_FORKCHECK)
1316	curpid = getpid ();
1317	#endif	1580	#endif
1318
1319	if (!(flags & EVFLAG_NOENV)
1320	&& !enable_secure ()
1321	&& getenv ("LIBEV_FLAGS"))
1322	flags = atoi (getenv ("LIBEV_FLAGS"));
1323		1581
1324	if (!(flags & 0x0000ffffU))	1582	if (!(flags & 0x0000ffffU))
1325	flags |= ev_recommended_backends ();	1583	flags |= ev_recommended_backends ();
1326		1584
1327	#if EV_USE_PORT	1585	#if EV_USE_PORT
…		…
1338	#endif	1596	#endif
1339	#if EV_USE_SELECT	1597	#if EV_USE_SELECT
1340	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1598	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1341	#endif	1599	#endif
1342		1600
		1601	ev_prepare_init (&pending_w, pendingcb);
		1602
1343	ev_init (&pipeev, pipecb);	1603	ev_init (&pipe_w, pipecb);
1344	ev_set_priority (&pipeev, EV_MAXPRI);	1604	ev_set_priority (&pipe_w, EV_MAXPRI);
1345	}	1605	}
1346	}	1606	}
1347		1607
		1608	/* free up a loop structure */
1348	static void noinline	1609	static void noinline
1349	loop_destroy (EV_P)	1610	loop_destroy (EV_P)
1350	{	1611	{
1351	int i;	1612	int i;
1352		1613
1353	if (ev_is_active (&pipeev))	1614	if (ev_is_active (&pipe_w))
1354	{	1615	{
1355	ev_ref (EV_A); /* signal watcher */	1616	/*ev_ref (EV_A);*/
1356	ev_io_stop (EV_A_ &pipeev);	1617	/*ev_io_stop (EV_A_ &pipe_w);*/
1357		1618
1358	#if EV_USE_EVENTFD	1619	#if EV_USE_EVENTFD
1359	if (evfd >= 0)	1620	if (evfd >= 0)
1360	close (evfd);	1621	close (evfd);
1361	#endif	1622	#endif
…		…
1365	close (evpipe [0]);	1626	close (evpipe [0]);
1366	close (evpipe [1]);	1627	close (evpipe [1]);
1367	}	1628	}
1368	}	1629	}
1369		1630
		1631	#if EV_USE_SIGNALFD
		1632	if (ev_is_active (&sigfd_w))
		1633	{
		1634	/*ev_ref (EV_A);*/
		1635	/*ev_io_stop (EV_A_ &sigfd_w);*/
		1636
		1637	close (sigfd);
		1638	}
		1639	#endif
		1640
1370	#if EV_USE_INOTIFY	1641	#if EV_USE_INOTIFY
1371	if (fs_fd >= 0)	1642	if (fs_fd >= 0)
1372	close (fs_fd);	1643	close (fs_fd);
1373	#endif	1644	#endif
1374		1645
…		…
1397	#if EV_IDLE_ENABLE	1668	#if EV_IDLE_ENABLE
1398	array_free (idle, [i]);	1669	array_free (idle, [i]);
1399	#endif	1670	#endif
1400	}	1671	}
1401		1672
1402	ev_free (anfds); anfdmax = 0;	1673	ev_free (anfds); anfds = 0; anfdmax = 0;
1403		1674
1404	/* have to use the microsoft-never-gets-it-right macro */	1675	/* have to use the microsoft-never-gets-it-right macro */
		1676	array_free (rfeed, EMPTY);
1405	array_free (fdchange, EMPTY);	1677	array_free (fdchange, EMPTY);
1406	array_free (timer, EMPTY);	1678	array_free (timer, EMPTY);
1407	#if EV_PERIODIC_ENABLE	1679	#if EV_PERIODIC_ENABLE
1408	array_free (periodic, EMPTY);	1680	array_free (periodic, EMPTY);
1409	#endif	1681	#endif
…		…
1418		1690
1419	backend = 0;	1691	backend = 0;
1420	}	1692	}
1421		1693
1422	#if EV_USE_INOTIFY	1694	#if EV_USE_INOTIFY
1423	void inline_size infy_fork (EV_P);	1695	inline_size void infy_fork (EV_P);
1424	#endif	1696	#endif
1425		1697
1426	void inline_size	1698	inline_size void
1427	loop_fork (EV_P)	1699	loop_fork (EV_P)
1428	{	1700	{
1429	#if EV_USE_PORT	1701	#if EV_USE_PORT
1430	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1702	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1431	#endif	1703	#endif
…		…
1437	#endif	1709	#endif
1438	#if EV_USE_INOTIFY	1710	#if EV_USE_INOTIFY
1439	infy_fork (EV_A);	1711	infy_fork (EV_A);
1440	#endif	1712	#endif
1441		1713
1442	if (ev_is_active (&pipeev))	1714	if (ev_is_active (&pipe_w))
1443	{	1715	{
1444	/* this "locks" the handlers against writing to the pipe */	1716	/* this "locks" the handlers against writing to the pipe */
1445	/* while we modify the fd vars */	1717	/* while we modify the fd vars */
1446	gotsig = 1;	1718	sig_pending = 1;
1447	#if EV_ASYNC_ENABLE	1719	#if EV_ASYNC_ENABLE
1448	gotasync = 1;	1720	async_pending = 1;
1449	#endif	1721	#endif
1450		1722
1451	ev_ref (EV_A);	1723	ev_ref (EV_A);
1452	ev_io_stop (EV_A_ &pipeev);	1724	ev_io_stop (EV_A_ &pipe_w);
1453		1725
1454	#if EV_USE_EVENTFD	1726	#if EV_USE_EVENTFD
1455	if (evfd >= 0)	1727	if (evfd >= 0)
1456	close (evfd);	1728	close (evfd);
1457	#endif	1729	#endif
…		…
1462	close (evpipe [1]);	1734	close (evpipe [1]);
1463	}	1735	}
1464		1736
1465	evpipe_init (EV_A);	1737	evpipe_init (EV_A);
1466	/* now iterate over everything, in case we missed something */	1738	/* now iterate over everything, in case we missed something */
1467	pipecb (EV_A_ &pipeev, EV_READ);	1739	pipecb (EV_A_ &pipe_w, EV_READ);
1468	}	1740	}
1469		1741
1470	postfork = 0;	1742	postfork = 0;
1471	}	1743	}
1472		1744
1473	#if EV_MULTIPLICITY	1745	#if EV_MULTIPLICITY
1474		1746
1475	struct ev_loop *	1747	struct ev_loop *
1476	ev_loop_new (unsigned int flags)	1748	ev_loop_new (unsigned int flags)
1477	{	1749	{
1478	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1750	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1479		1751
1480	memset (loop, 0, sizeof (struct ev_loop));	1752	memset (EV_A, 0, sizeof (struct ev_loop));
1481
1482	loop_init (EV_A_ flags);	1753	loop_init (EV_A_ flags);
1483		1754
1484	if (ev_backend (EV_A))	1755	if (ev_backend (EV_A))
1485	return loop;	1756	return EV_A;
1486		1757
1487	return 0;	1758	return 0;
1488	}	1759	}
1489		1760
1490	void	1761	void
…		…
1497	void	1768	void
1498	ev_loop_fork (EV_P)	1769	ev_loop_fork (EV_P)
1499	{	1770	{
1500	postfork = 1; /* must be in line with ev_default_fork */	1771	postfork = 1; /* must be in line with ev_default_fork */
1501	}	1772	}
		1773	#endif /* multiplicity */
1502		1774
1503	#if EV_VERIFY	1775	#if EV_VERIFY
1504	void noinline	1776	static void noinline
1505	verify_watcher (EV_P_ W w)	1777	verify_watcher (EV_P_ W w)
1506	{	1778	{
1507	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1779	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1508		1780
1509	if (w->pending)	1781	if (w->pending)
1510	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	1782	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1511	}	1783	}
1512		1784
1513	static void noinline	1785	static void noinline
1514	verify_heap (EV_P_ ANHE *heap, int N)	1786	verify_heap (EV_P_ ANHE *heap, int N)
1515	{	1787	{
1516	int i;	1788	int i;
1517		1789
1518	for (i = HEAP0; i < N + HEAP0; ++i)	1790	for (i = HEAP0; i < N + HEAP0; ++i)
1519	{	1791	{
1520	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));	1792	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1521	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));	1793	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1522	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));	1794	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1523		1795
1524	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1796	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1525	}	1797	}
1526	}	1798	}
1527		1799
1528	static void noinline	1800	static void noinline
1529	array_verify (EV_P_ W *ws, int cnt)	1801	array_verify (EV_P_ W *ws, int cnt)
1530	{	1802	{
1531	while (cnt--)	1803	while (cnt--)
1532	{	1804	{
1533	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1805	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1534	verify_watcher (EV_A_ ws [cnt]);	1806	verify_watcher (EV_A_ ws [cnt]);
1535	}	1807	}
1536	}	1808	}
1537	#endif	1809	#endif
1538		1810
		1811	#if EV_MINIMAL < 2
1539	void	1812	void
1540	ev_loop_verify (EV_P)	1813	ev_loop_verify (EV_P)
1541	{	1814	{
1542	#if EV_VERIFY	1815	#if EV_VERIFY
1543	int i;	1816	int i;
…		…
1545		1818
1546	assert (activecnt >= -1);	1819	assert (activecnt >= -1);
1547		1820
1548	assert (fdchangemax >= fdchangecnt);	1821	assert (fdchangemax >= fdchangecnt);
1549	for (i = 0; i < fdchangecnt; ++i)	1822	for (i = 0; i < fdchangecnt; ++i)
1550	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1823	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1551		1824
1552	assert (anfdmax >= 0);	1825	assert (anfdmax >= 0);
1553	for (i = 0; i < anfdmax; ++i)	1826	for (i = 0; i < anfdmax; ++i)
1554	for (w = anfds [i].head; w; w = w->next)	1827	for (w = anfds [i].head; w; w = w->next)
1555	{	1828	{
1556	verify_watcher (EV_A_ (W)w);	1829	verify_watcher (EV_A_ (W)w);
1557	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1830	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1558	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	1831	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1559	}	1832	}
1560		1833
1561	assert (timermax >= timercnt);	1834	assert (timermax >= timercnt);
1562	verify_heap (EV_A_ timers, timercnt);	1835	verify_heap (EV_A_ timers, timercnt);
1563		1836
…		…
1568		1841
1569	for (i = NUMPRI; i--; )	1842	for (i = NUMPRI; i--; )
1570	{	1843	{
1571	assert (pendingmax [i] >= pendingcnt [i]);	1844	assert (pendingmax [i] >= pendingcnt [i]);
1572	#if EV_IDLE_ENABLE	1845	#if EV_IDLE_ENABLE
		1846	assert (idleall >= 0);
1573	assert (idlemax [i] >= idlecnt [i]);	1847	assert (idlemax [i] >= idlecnt [i]);
1574	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);	1848	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1575	#endif	1849	#endif
1576	}	1850	}
1577		1851
…		…
1591	assert (checkmax >= checkcnt);	1865	assert (checkmax >= checkcnt);
1592	array_verify (EV_A_ (W *)checks, checkcnt);	1866	array_verify (EV_A_ (W *)checks, checkcnt);
1593		1867
1594	# if 0	1868	# if 0
1595	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1869	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1596	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1870	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1597	# endif	1871	# endif
1598	#endif	1872	#endif
1599	}	1873	}
1600		1874	#endif
1601	#endif /* multiplicity */
1602		1875
1603	#if EV_MULTIPLICITY	1876	#if EV_MULTIPLICITY
1604	struct ev_loop *	1877	struct ev_loop *
1605	ev_default_loop_init (unsigned int flags)	1878	ev_default_loop_init (unsigned int flags)
1606	#else	1879	#else
…		…
1609	#endif	1882	#endif
1610	{	1883	{
1611	if (!ev_default_loop_ptr)	1884	if (!ev_default_loop_ptr)
1612	{	1885	{
1613	#if EV_MULTIPLICITY	1886	#if EV_MULTIPLICITY
1614	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1887	EV_P = ev_default_loop_ptr = &default_loop_struct;
1615	#else	1888	#else
1616	ev_default_loop_ptr = 1;	1889	ev_default_loop_ptr = 1;
1617	#endif	1890	#endif
1618		1891
1619	loop_init (EV_A_ flags);	1892	loop_init (EV_A_ flags);
…		…
1636		1909
1637	void	1910	void
1638	ev_default_destroy (void)	1911	ev_default_destroy (void)
1639	{	1912	{
1640	#if EV_MULTIPLICITY	1913	#if EV_MULTIPLICITY
1641	struct ev_loop *loop = ev_default_loop_ptr;	1914	EV_P = ev_default_loop_ptr;
1642	#endif	1915	#endif
		1916
		1917	ev_default_loop_ptr = 0;
1643		1918
1644	#ifndef _WIN32	1919	#ifndef _WIN32
1645	ev_ref (EV_A); /* child watcher */	1920	ev_ref (EV_A); /* child watcher */
1646	ev_signal_stop (EV_A_ &childev);	1921	ev_signal_stop (EV_A_ &childev);
1647	#endif	1922	#endif
…		…
1651		1926
1652	void	1927	void
1653	ev_default_fork (void)	1928	ev_default_fork (void)
1654	{	1929	{
1655	#if EV_MULTIPLICITY	1930	#if EV_MULTIPLICITY
1656	struct ev_loop *loop = ev_default_loop_ptr;	1931	EV_P = ev_default_loop_ptr;
1657	#endif	1932	#endif
1658		1933
1659	if (backend)
1660	postfork = 1; /* must be in line with ev_loop_fork */	1934	postfork = 1; /* must be in line with ev_loop_fork */
1661	}	1935	}
1662		1936
1663	/*****************************************************************************/	1937	/*****************************************************************************/
1664		1938
1665	void	1939	void
1666	ev_invoke (EV_P_ void *w, int revents)	1940	ev_invoke (EV_P_ void *w, int revents)
1667	{	1941	{
1668	EV_CB_INVOKE ((W)w, revents);	1942	EV_CB_INVOKE ((W)w, revents);
1669	}	1943	}
1670		1944
1671	void inline_speed	1945	unsigned int
1672	call_pending (EV_P)	1946	ev_pending_count (EV_P)
		1947	{
		1948	int pri;
		1949	unsigned int count = 0;
		1950
		1951	for (pri = NUMPRI; pri--; )
		1952	count += pendingcnt [pri];
		1953
		1954	return count;
		1955	}
		1956
		1957	void noinline
		1958	ev_invoke_pending (EV_P)
1673	{	1959	{
1674	int pri;	1960	int pri;
1675		1961
1676	for (pri = NUMPRI; pri--; )	1962	for (pri = NUMPRI; pri--; )
1677	while (pendingcnt [pri])	1963	while (pendingcnt [pri])
1678	{	1964	{
1679	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1965	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1680		1966
1681	if (expect_true (p->w))
1682	{
1683	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1967	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1968	/* ^ this is no longer true, as pending_w could be here */
1684		1969
1685	p->w->pending = 0;	1970	p->w->pending = 0;
1686	EV_CB_INVOKE (p->w, p->events);	1971	EV_CB_INVOKE (p->w, p->events);
1687	EV_FREQUENT_CHECK;	1972	EV_FREQUENT_CHECK;
1688	}
1689	}	1973	}
1690	}	1974	}
1691		1975
1692	#if EV_IDLE_ENABLE	1976	#if EV_IDLE_ENABLE
1693	void inline_size	1977	/* make idle watchers pending. this handles the "call-idle */
		1978	/* only when higher priorities are idle" logic */
		1979	inline_size void
1694	idle_reify (EV_P)	1980	idle_reify (EV_P)
1695	{	1981	{
1696	if (expect_false (idleall))	1982	if (expect_false (idleall))
1697	{	1983	{
1698	int pri;	1984	int pri;
…		…
1710	}	1996	}
1711	}	1997	}
1712	}	1998	}
1713	#endif	1999	#endif
1714		2000
1715	void inline_size	2001	/* make timers pending */
		2002	inline_size void
1716	timers_reify (EV_P)	2003	timers_reify (EV_P)
1717	{	2004	{
1718	EV_FREQUENT_CHECK;	2005	EV_FREQUENT_CHECK;
1719		2006
1720	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	2007	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1721	{	2008	{
1722	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	2009	do
1723
1724	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1725
1726	/* first reschedule or stop timer */
1727	if (w->repeat)
1728	{	2010	{
		2011	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2012
		2013	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2014
		2015	/* first reschedule or stop timer */
		2016	if (w->repeat)
		2017	{
1729	ev_at (w) += w->repeat;	2018	ev_at (w) += w->repeat;
1730	if (ev_at (w) < mn_now)	2019	if (ev_at (w) < mn_now)
1731	ev_at (w) = mn_now;	2020	ev_at (w) = mn_now;
1732		2021
1733	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	2022	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1734		2023
1735	ANHE_at_cache (timers [HEAP0]);	2024	ANHE_at_cache (timers [HEAP0]);
1736	downheap (timers, timercnt, HEAP0);	2025	downheap (timers, timercnt, HEAP0);
		2026	}
		2027	else
		2028	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2029
		2030	EV_FREQUENT_CHECK;
		2031	feed_reverse (EV_A_ (W)w);
1737	}	2032	}
1738	else	2033	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1739	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1740		2034
1741	EV_FREQUENT_CHECK;
1742	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	2035	feed_reverse_done (EV_A_ EV_TIMEOUT);
1743	}	2036	}
1744	}	2037	}
1745		2038
1746	#if EV_PERIODIC_ENABLE	2039	#if EV_PERIODIC_ENABLE
1747	void inline_size	2040	/* make periodics pending */
		2041	inline_size void
1748	periodics_reify (EV_P)	2042	periodics_reify (EV_P)
1749	{	2043	{
1750	EV_FREQUENT_CHECK;	2044	EV_FREQUENT_CHECK;
1751		2045
1752	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2046	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1753	{	2047	{
1754	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2048	int feed_count = 0;
1755		2049
1756	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	2050	do
1757
1758	/* first reschedule or stop timer */
1759	if (w->reschedule_cb)
1760	{	2051	{
		2052	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2053
		2054	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2055
		2056	/* first reschedule or stop timer */
		2057	if (w->reschedule_cb)
		2058	{
1761	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2059	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1762		2060
1763	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	2061	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1764		2062
1765	ANHE_at_cache (periodics [HEAP0]);	2063	ANHE_at_cache (periodics [HEAP0]);
1766	downheap (periodics, periodiccnt, HEAP0);	2064	downheap (periodics, periodiccnt, HEAP0);
		2065	}
		2066	else if (w->interval)
		2067	{
		2068	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2069	/* if next trigger time is not sufficiently in the future, put it there */
		2070	/* this might happen because of floating point inexactness */
		2071	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2072	{
		2073	ev_at (w) += w->interval;
		2074
		2075	/* if interval is unreasonably low we might still have a time in the past */
		2076	/* so correct this. this will make the periodic very inexact, but the user */
		2077	/* has effectively asked to get triggered more often than possible */
		2078	if (ev_at (w) < ev_rt_now)
		2079	ev_at (w) = ev_rt_now;
		2080	}
		2081
		2082	ANHE_at_cache (periodics [HEAP0]);
		2083	downheap (periodics, periodiccnt, HEAP0);
		2084	}
		2085	else
		2086	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2087
		2088	EV_FREQUENT_CHECK;
		2089	feed_reverse (EV_A_ (W)w);
1767	}	2090	}
1768	else if (w->interval)	2091	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1769	{
1770	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1771	/* if next trigger time is not sufficiently in the future, put it there */
1772	/* this might happen because of floating point inexactness */
1773	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1774	{
1775	ev_at (w) += w->interval;
1776		2092
1777	/* if interval is unreasonably low we might still have a time in the past */
1778	/* so correct this. this will make the periodic very inexact, but the user */
1779	/* has effectively asked to get triggered more often than possible */
1780	if (ev_at (w) < ev_rt_now)
1781	ev_at (w) = ev_rt_now;
1782	}
1783
1784	ANHE_at_cache (periodics [HEAP0]);
1785	downheap (periodics, periodiccnt, HEAP0);
1786	}
1787	else
1788	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1789
1790	EV_FREQUENT_CHECK;
1791	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	2093	feed_reverse_done (EV_A_ EV_PERIODIC);
1792	}	2094	}
1793	}	2095	}
1794		2096
		2097	/* simply recalculate all periodics */
		2098	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1795	static void noinline	2099	static void noinline
1796	periodics_reschedule (EV_P)	2100	periodics_reschedule (EV_P)
1797	{	2101	{
1798	int i;	2102	int i;
1799		2103
…		…
1812		2116
1813	reheap (periodics, periodiccnt);	2117	reheap (periodics, periodiccnt);
1814	}	2118	}
1815	#endif	2119	#endif
1816		2120
1817	void inline_speed	2121	/* adjust all timers by a given offset */
		2122	static void noinline
		2123	timers_reschedule (EV_P_ ev_tstamp adjust)
		2124	{
		2125	int i;
		2126
		2127	for (i = 0; i < timercnt; ++i)
		2128	{
		2129	ANHE *he = timers + i + HEAP0;
		2130	ANHE_w (*he)->at += adjust;
		2131	ANHE_at_cache (*he);
		2132	}
		2133	}
		2134
		2135	/* fetch new monotonic and realtime times from the kernel */
		2136	/* also detetc if there was a timejump, and act accordingly */
		2137	inline_speed void
1818	time_update (EV_P_ ev_tstamp max_block)	2138	time_update (EV_P_ ev_tstamp max_block)
1819	{	2139	{
1820	int i;
1821
1822	#if EV_USE_MONOTONIC	2140	#if EV_USE_MONOTONIC
1823	if (expect_true (have_monotonic))	2141	if (expect_true (have_monotonic))
1824	{	2142	{
		2143	int i;
1825	ev_tstamp odiff = rtmn_diff;	2144	ev_tstamp odiff = rtmn_diff;
1826		2145
1827	mn_now = get_clock ();	2146	mn_now = get_clock ();
1828		2147
1829	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2148	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1855	ev_rt_now = ev_time ();	2174	ev_rt_now = ev_time ();
1856	mn_now = get_clock ();	2175	mn_now = get_clock ();
1857	now_floor = mn_now;	2176	now_floor = mn_now;
1858	}	2177	}
1859		2178
		2179	/* no timer adjustment, as the monotonic clock doesn't jump */
		2180	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1860	# if EV_PERIODIC_ENABLE	2181	# if EV_PERIODIC_ENABLE
1861	periodics_reschedule (EV_A);	2182	periodics_reschedule (EV_A);
1862	# endif	2183	# endif
1863	/* no timer adjustment, as the monotonic clock doesn't jump */
1864	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1865	}	2184	}
1866	else	2185	else
1867	#endif	2186	#endif
1868	{	2187	{
1869	ev_rt_now = ev_time ();	2188	ev_rt_now = ev_time ();
1870		2189
1871	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2190	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1872	{	2191	{
		2192	/* adjust timers. this is easy, as the offset is the same for all of them */
		2193	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1873	#if EV_PERIODIC_ENABLE	2194	#if EV_PERIODIC_ENABLE
1874	periodics_reschedule (EV_A);	2195	periodics_reschedule (EV_A);
1875	#endif	2196	#endif
1876	/* adjust timers. this is easy, as the offset is the same for all of them */
1877	for (i = 0; i < timercnt; ++i)
1878	{
1879	ANHE *he = timers + i + HEAP0;
1880	ANHE_w (*he)->at += ev_rt_now - mn_now;
1881	ANHE_at_cache (*he);
1882	}
1883	}	2197	}
1884		2198
1885	mn_now = ev_rt_now;	2199	mn_now = ev_rt_now;
1886	}	2200	}
1887	}	2201	}
1888		2202
1889	void	2203	void
1890	ev_ref (EV_P)
1891	{
1892	++activecnt;
1893	}
1894
1895	void
1896	ev_unref (EV_P)
1897	{
1898	--activecnt;
1899	}
1900
1901	static int loop_done;
1902
1903	void
1904	ev_loop (EV_P_ int flags)	2204	ev_loop (EV_P_ int flags)
1905	{	2205	{
		2206	#if EV_MINIMAL < 2
		2207	++loop_depth;
		2208	#endif
		2209
		2210	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2211
1906	loop_done = EVUNLOOP_CANCEL;	2212	loop_done = EVUNLOOP_CANCEL;
1907		2213
1908	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2214	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1909		2215
1910	do	2216	do
1911	{	2217	{
1912	#if EV_VERIFY >= 2	2218	#if EV_VERIFY >= 2
1913	ev_loop_verify (EV_A);	2219	ev_loop_verify (EV_A);
…		…
1926	/* we might have forked, so queue fork handlers */	2232	/* we might have forked, so queue fork handlers */
1927	if (expect_false (postfork))	2233	if (expect_false (postfork))
1928	if (forkcnt)	2234	if (forkcnt)
1929	{	2235	{
1930	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2236	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1931	call_pending (EV_A);	2237	EV_INVOKE_PENDING;
1932	}	2238	}
1933	#endif	2239	#endif
1934		2240
1935	/* queue prepare watchers (and execute them) */	2241	/* queue prepare watchers (and execute them) */
1936	if (expect_false (preparecnt))	2242	if (expect_false (preparecnt))
1937	{	2243	{
1938	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1939	call_pending (EV_A);	2245	EV_INVOKE_PENDING;
1940	}	2246	}
1941		2247
1942	if (expect_false (!activecnt))	2248	if (expect_false (loop_done))
1943	break;	2249	break;
1944		2250
1945	/* we might have forked, so reify kernel state if necessary */	2251	/* we might have forked, so reify kernel state if necessary */
1946	if (expect_false (postfork))	2252	if (expect_false (postfork))
1947	loop_fork (EV_A);	2253	loop_fork (EV_A);
…		…
1954	ev_tstamp waittime = 0.;	2260	ev_tstamp waittime = 0.;
1955	ev_tstamp sleeptime = 0.;	2261	ev_tstamp sleeptime = 0.;
1956		2262
1957	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2263	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1958	{	2264	{
		2265	/* remember old timestamp for io_blocktime calculation */
		2266	ev_tstamp prev_mn_now = mn_now;
		2267
1959	/* update time to cancel out callback processing overhead */	2268	/* update time to cancel out callback processing overhead */
1960	time_update (EV_A_ 1e100);	2269	time_update (EV_A_ 1e100);
1961		2270
1962	waittime = MAX_BLOCKTIME;	2271	waittime = MAX_BLOCKTIME;
1963		2272
…		…
1973	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2282	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1974	if (waittime > to) waittime = to;	2283	if (waittime > to) waittime = to;
1975	}	2284	}
1976	#endif	2285	#endif
1977		2286
		2287	/* don't let timeouts decrease the waittime below timeout_blocktime */
1978	if (expect_false (waittime < timeout_blocktime))	2288	if (expect_false (waittime < timeout_blocktime))
1979	waittime = timeout_blocktime;	2289	waittime = timeout_blocktime;
1980		2290
1981	sleeptime = waittime - backend_fudge;	2291	/* extra check because io_blocktime is commonly 0 */
1982
1983	if (expect_true (sleeptime > io_blocktime))	2292	if (expect_false (io_blocktime))
1984	sleeptime = io_blocktime;
1985
1986	if (sleeptime)
1987	{	2293	{
		2294	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2295
		2296	if (sleeptime > waittime - backend_fudge)
		2297	sleeptime = waittime - backend_fudge;
		2298
		2299	if (expect_true (sleeptime > 0.))
		2300	{
1988	ev_sleep (sleeptime);	2301	ev_sleep (sleeptime);
1989	waittime -= sleeptime;	2302	waittime -= sleeptime;
		2303	}
1990	}	2304	}
1991	}	2305	}
1992		2306
		2307	#if EV_MINIMAL < 2
1993	++loop_count;	2308	++loop_count;
		2309	#endif
		2310	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1994	backend_poll (EV_A_ waittime);	2311	backend_poll (EV_A_ waittime);
		2312	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1995		2313
1996	/* update ev_rt_now, do magic */	2314	/* update ev_rt_now, do magic */
1997	time_update (EV_A_ waittime + sleeptime);	2315	time_update (EV_A_ waittime + sleeptime);
1998	}	2316	}
1999		2317
…		…
2010		2328
2011	/* queue check watchers, to be executed first */	2329	/* queue check watchers, to be executed first */
2012	if (expect_false (checkcnt))	2330	if (expect_false (checkcnt))
2013	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2331	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2014		2332
2015	call_pending (EV_A);	2333	EV_INVOKE_PENDING;
2016	}	2334	}
2017	while (expect_true (	2335	while (expect_true (
2018	activecnt	2336	activecnt
2019	&& !loop_done	2337	&& !loop_done
2020	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2338	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2021	));	2339	));
2022		2340
2023	if (loop_done == EVUNLOOP_ONE)	2341	if (loop_done == EVUNLOOP_ONE)
2024	loop_done = EVUNLOOP_CANCEL;	2342	loop_done = EVUNLOOP_CANCEL;
		2343
		2344	#if EV_MINIMAL < 2
		2345	--loop_depth;
		2346	#endif
2025	}	2347	}
2026		2348
2027	void	2349	void
2028	ev_unloop (EV_P_ int how)	2350	ev_unloop (EV_P_ int how)
2029	{	2351	{
2030	loop_done = how;	2352	loop_done = how;
2031	}	2353	}
2032		2354
		2355	void
		2356	ev_ref (EV_P)
		2357	{
		2358	++activecnt;
		2359	}
		2360
		2361	void
		2362	ev_unref (EV_P)
		2363	{
		2364	--activecnt;
		2365	}
		2366
		2367	void
		2368	ev_now_update (EV_P)
		2369	{
		2370	time_update (EV_A_ 1e100);
		2371	}
		2372
		2373	void
		2374	ev_suspend (EV_P)
		2375	{
		2376	ev_now_update (EV_A);
		2377	}
		2378
		2379	void
		2380	ev_resume (EV_P)
		2381	{
		2382	ev_tstamp mn_prev = mn_now;
		2383
		2384	ev_now_update (EV_A);
		2385	timers_reschedule (EV_A_ mn_now - mn_prev);
		2386	#if EV_PERIODIC_ENABLE
		2387	/* TODO: really do this? */
		2388	periodics_reschedule (EV_A);
		2389	#endif
		2390	}
		2391
2033	/*****************************************************************************/	2392	/*****************************************************************************/
		2393	/* singly-linked list management, used when the expected list length is short */
2034		2394
2035	void inline_size	2395	inline_size void
2036	wlist_add (WL *head, WL elem)	2396	wlist_add (WL *head, WL elem)
2037	{	2397	{
2038	elem->next = *head;	2398	elem->next = *head;
2039	*head = elem;	2399	*head = elem;
2040	}	2400	}
2041		2401
2042	void inline_size	2402	inline_size void
2043	wlist_del (WL *head, WL elem)	2403	wlist_del (WL *head, WL elem)
2044	{	2404	{
2045	while (*head)	2405	while (*head)
2046	{	2406	{
2047	if (*head == elem)	2407	if (expect_true (*head == elem))
2048	{	2408	{
2049	*head = elem->next;	2409	*head = elem->next;
2050	return;	2410	break;
2051	}	2411	}
2052		2412
2053	head = &(*head)->next;	2413	head = &(*head)->next;
2054	}	2414	}
2055	}	2415	}
2056		2416
2057	void inline_speed	2417	/* internal, faster, version of ev_clear_pending */
		2418	inline_speed void
2058	clear_pending (EV_P_ W w)	2419	clear_pending (EV_P_ W w)
2059	{	2420	{
2060	if (w->pending)	2421	if (w->pending)
2061	{	2422	{
2062	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2423	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2063	w->pending = 0;	2424	w->pending = 0;
2064	}	2425	}
2065	}	2426	}
2066		2427
2067	int	2428	int
…		…
2071	int pending = w_->pending;	2432	int pending = w_->pending;
2072		2433
2073	if (expect_true (pending))	2434	if (expect_true (pending))
2074	{	2435	{
2075	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2436	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2437	p->w = (W)&pending_w;
2076	w_->pending = 0;	2438	w_->pending = 0;
2077	p->w = 0;
2078	return p->events;	2439	return p->events;
2079	}	2440	}
2080	else	2441	else
2081	return 0;	2442	return 0;
2082	}	2443	}
2083		2444
2084	void inline_size	2445	inline_size void
2085	pri_adjust (EV_P_ W w)	2446	pri_adjust (EV_P_ W w)
2086	{	2447	{
2087	int pri = w->priority;	2448	int pri = ev_priority (w);
2088	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2449	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2089	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2450	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2090	w->priority = pri;	2451	ev_set_priority (w, pri);
2091	}	2452	}
2092		2453
2093	void inline_speed	2454	inline_speed void
2094	ev_start (EV_P_ W w, int active)	2455	ev_start (EV_P_ W w, int active)
2095	{	2456	{
2096	pri_adjust (EV_A_ w);	2457	pri_adjust (EV_A_ w);
2097	w->active = active;	2458	w->active = active;
2098	ev_ref (EV_A);	2459	ev_ref (EV_A);
2099	}	2460	}
2100		2461
2101	void inline_size	2462	inline_size void
2102	ev_stop (EV_P_ W w)	2463	ev_stop (EV_P_ W w)
2103	{	2464	{
2104	ev_unref (EV_A);	2465	ev_unref (EV_A);
2105	w->active = 0;	2466	w->active = 0;
2106	}	2467	}
…		…
2113	int fd = w->fd;	2474	int fd = w->fd;
2114		2475
2115	if (expect_false (ev_is_active (w)))	2476	if (expect_false (ev_is_active (w)))
2116	return;	2477	return;
2117		2478
2118	assert (("ev_io_start called with negative fd", fd >= 0));	2479	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2480	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2119		2481
2120	EV_FREQUENT_CHECK;	2482	EV_FREQUENT_CHECK;
2121		2483
2122	ev_start (EV_A_ (W)w, 1);	2484	ev_start (EV_A_ (W)w, 1);
2123	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2485	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2124	wlist_add (&anfds[fd].head, (WL)w);	2486	wlist_add (&anfds[fd].head, (WL)w);
2125		2487
2126	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2488	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2127	w->events &= ~EV_IOFDSET;	2489	w->events &= ~EV__IOFDSET;
2128		2490
2129	EV_FREQUENT_CHECK;	2491	EV_FREQUENT_CHECK;
2130	}	2492	}
2131		2493
2132	void noinline	2494	void noinline
…		…
2134	{	2496	{
2135	clear_pending (EV_A_ (W)w);	2497	clear_pending (EV_A_ (W)w);
2136	if (expect_false (!ev_is_active (w)))	2498	if (expect_false (!ev_is_active (w)))
2137	return;	2499	return;
2138		2500
2139	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2501	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2140		2502
2141	EV_FREQUENT_CHECK;	2503	EV_FREQUENT_CHECK;
2142		2504
2143	wlist_del (&anfds[w->fd].head, (WL)w);	2505	wlist_del (&anfds[w->fd].head, (WL)w);
2144	ev_stop (EV_A_ (W)w);	2506	ev_stop (EV_A_ (W)w);
…		…
2154	if (expect_false (ev_is_active (w)))	2516	if (expect_false (ev_is_active (w)))
2155	return;	2517	return;
2156		2518
2157	ev_at (w) += mn_now;	2519	ev_at (w) += mn_now;
2158		2520
2159	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2521	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2160		2522
2161	EV_FREQUENT_CHECK;	2523	EV_FREQUENT_CHECK;
2162		2524
2163	++timercnt;	2525	++timercnt;
2164	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2526	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2167	ANHE_at_cache (timers [ev_active (w)]);	2529	ANHE_at_cache (timers [ev_active (w)]);
2168	upheap (timers, ev_active (w));	2530	upheap (timers, ev_active (w));
2169		2531
2170	EV_FREQUENT_CHECK;	2532	EV_FREQUENT_CHECK;
2171		2533
2172	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2534	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2173	}	2535	}
2174		2536
2175	void noinline	2537	void noinline
2176	ev_timer_stop (EV_P_ ev_timer *w)	2538	ev_timer_stop (EV_P_ ev_timer *w)
2177	{	2539	{
…		…
2182	EV_FREQUENT_CHECK;	2544	EV_FREQUENT_CHECK;
2183		2545
2184	{	2546	{
2185	int active = ev_active (w);	2547	int active = ev_active (w);
2186		2548
2187	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2549	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2188		2550
2189	--timercnt;	2551	--timercnt;
2190		2552
2191	if (expect_true (active < timercnt + HEAP0))	2553	if (expect_true (active < timercnt + HEAP0))
2192	{	2554	{
…		…
2225	}	2587	}
2226		2588
2227	EV_FREQUENT_CHECK;	2589	EV_FREQUENT_CHECK;
2228	}	2590	}
2229		2591
		2592	ev_tstamp
		2593	ev_timer_remaining (EV_P_ ev_timer *w)
		2594	{
		2595	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2596	}
		2597
2230	#if EV_PERIODIC_ENABLE	2598	#if EV_PERIODIC_ENABLE
2231	void noinline	2599	void noinline
2232	ev_periodic_start (EV_P_ ev_periodic *w)	2600	ev_periodic_start (EV_P_ ev_periodic *w)
2233	{	2601	{
2234	if (expect_false (ev_is_active (w)))	2602	if (expect_false (ev_is_active (w)))
…		…
2236		2604
2237	if (w->reschedule_cb)	2605	if (w->reschedule_cb)
2238	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2606	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2239	else if (w->interval)	2607	else if (w->interval)
2240	{	2608	{
2241	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2609	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2242	/* this formula differs from the one in periodic_reify because we do not always round up */	2610	/* this formula differs from the one in periodic_reify because we do not always round up */
2243	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2611	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2244	}	2612	}
2245	else	2613	else
2246	ev_at (w) = w->offset;	2614	ev_at (w) = w->offset;
…		…
2254	ANHE_at_cache (periodics [ev_active (w)]);	2622	ANHE_at_cache (periodics [ev_active (w)]);
2255	upheap (periodics, ev_active (w));	2623	upheap (periodics, ev_active (w));
2256		2624
2257	EV_FREQUENT_CHECK;	2625	EV_FREQUENT_CHECK;
2258		2626
2259	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2627	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2260	}	2628	}
2261		2629
2262	void noinline	2630	void noinline
2263	ev_periodic_stop (EV_P_ ev_periodic *w)	2631	ev_periodic_stop (EV_P_ ev_periodic *w)
2264	{	2632	{
…		…
2269	EV_FREQUENT_CHECK;	2637	EV_FREQUENT_CHECK;
2270		2638
2271	{	2639	{
2272	int active = ev_active (w);	2640	int active = ev_active (w);
2273		2641
2274	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2642	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2275		2643
2276	--periodiccnt;	2644	--periodiccnt;
2277		2645
2278	if (expect_true (active < periodiccnt + HEAP0))	2646	if (expect_true (active < periodiccnt + HEAP0))
2279	{	2647	{
…		…
2301	#endif	2669	#endif
2302		2670
2303	void noinline	2671	void noinline
2304	ev_signal_start (EV_P_ ev_signal *w)	2672	ev_signal_start (EV_P_ ev_signal *w)
2305	{	2673	{
2306	#if EV_MULTIPLICITY
2307	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2308	#endif
2309	if (expect_false (ev_is_active (w)))	2674	if (expect_false (ev_is_active (w)))
2310	return;	2675	return;
2311		2676
2312	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2677	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2313		2678
2314	evpipe_init (EV_A);	2679	#if EV_MULTIPLICITY
		2680	assert (("libev: a signal must not be attached to two different loops",
		2681	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2315		2682
2316	EV_FREQUENT_CHECK;	2683	signals [w->signum - 1].loop = EV_A;
		2684	#endif
2317		2685
		2686	EV_FREQUENT_CHECK;
		2687
		2688	#if EV_USE_SIGNALFD
		2689	if (sigfd == -2)
2318	{	2690	{
2319	#ifndef _WIN32	2691	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2320	sigset_t full, prev;	2692	if (sigfd < 0 && errno == EINVAL)
2321	sigfillset (&full);	2693	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2322	sigprocmask (SIG_SETMASK, &full, &prev);
2323	#endif
2324		2694
2325	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2695	if (sigfd >= 0)
		2696	{
		2697	fd_intern (sigfd); /* doing it twice will not hurt */
2326		2698
2327	#ifndef _WIN32	2699	sigemptyset (&sigfd_set);
2328	sigprocmask (SIG_SETMASK, &prev, 0);	2700
2329	#endif	2701	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2702	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2703	ev_io_start (EV_A_ &sigfd_w);
		2704	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2705	}
2330	}	2706	}
		2707
		2708	if (sigfd >= 0)
		2709	{
		2710	/* TODO: check .head */
		2711	sigaddset (&sigfd_set, w->signum);
		2712	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2713
		2714	signalfd (sigfd, &sigfd_set, 0);
		2715	}
		2716	#endif
2331		2717
2332	ev_start (EV_A_ (W)w, 1);	2718	ev_start (EV_A_ (W)w, 1);
2333	wlist_add (&signals [w->signum - 1].head, (WL)w);	2719	wlist_add (&signals [w->signum - 1].head, (WL)w);
2334		2720
2335	if (!((WL)w)->next)	2721	if (!((WL)w)->next)
		2722	# if EV_USE_SIGNALFD
		2723	if (sigfd < 0) /*TODO*/
		2724	# endif
2336	{	2725	{
2337	#if _WIN32	2726	# if _WIN32
2338	signal (w->signum, ev_sighandler);	2727	signal (w->signum, ev_sighandler);
2339	#else	2728	# else
2340	struct sigaction sa;	2729	struct sigaction sa;
		2730
		2731	evpipe_init (EV_A);
		2732
2341	sa.sa_handler = ev_sighandler;	2733	sa.sa_handler = ev_sighandler;
2342	sigfillset (&sa.sa_mask);	2734	sigfillset (&sa.sa_mask);
2343	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2735	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2344	sigaction (w->signum, &sa, 0);	2736	sigaction (w->signum, &sa, 0);
		2737
		2738	sigemptyset (&sa.sa_mask);
		2739	sigaddset (&sa.sa_mask, w->signum);
		2740	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2345	#endif	2741	#endif
2346	}	2742	}
2347		2743
2348	EV_FREQUENT_CHECK;	2744	EV_FREQUENT_CHECK;
2349	}	2745	}
2350		2746
2351	void noinline	2747	void noinline
…		…
2359		2755
2360	wlist_del (&signals [w->signum - 1].head, (WL)w);	2756	wlist_del (&signals [w->signum - 1].head, (WL)w);
2361	ev_stop (EV_A_ (W)w);	2757	ev_stop (EV_A_ (W)w);
2362		2758
2363	if (!signals [w->signum - 1].head)	2759	if (!signals [w->signum - 1].head)
		2760	{
		2761	#if EV_MULTIPLICITY
		2762	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2763	#endif
		2764	#if EV_USE_SIGNALFD
		2765	if (sigfd >= 0)
		2766	{
		2767	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2768	sigdelset (&sigfd_set, w->signum);
		2769	signalfd (sigfd, &sigfd_set, 0);
		2770	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2771	/*TODO: maybe unblock signal? */
		2772	}
		2773	else
		2774	#endif
2364	signal (w->signum, SIG_DFL);	2775	signal (w->signum, SIG_DFL);
		2776	}
2365		2777
2366	EV_FREQUENT_CHECK;	2778	EV_FREQUENT_CHECK;
2367	}	2779	}
2368		2780
2369	void	2781	void
2370	ev_child_start (EV_P_ ev_child *w)	2782	ev_child_start (EV_P_ ev_child *w)
2371	{	2783	{
2372	#if EV_MULTIPLICITY	2784	#if EV_MULTIPLICITY
2373	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2785	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2374	#endif	2786	#endif
2375	if (expect_false (ev_is_active (w)))	2787	if (expect_false (ev_is_active (w)))
2376	return;	2788	return;
2377		2789
2378	EV_FREQUENT_CHECK;	2790	EV_FREQUENT_CHECK;
…		…
2403	# ifdef _WIN32	2815	# ifdef _WIN32
2404	# undef lstat	2816	# undef lstat
2405	# define lstat(a,b) _stati64 (a,b)	2817	# define lstat(a,b) _stati64 (a,b)
2406	# endif	2818	# endif
2407		2819
2408	#define DEF_STAT_INTERVAL 5.0074891	2820	#define DEF_STAT_INTERVAL 5.0074891
		2821	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2409	#define MIN_STAT_INTERVAL 0.1074891	2822	#define MIN_STAT_INTERVAL 0.1074891
2410		2823
2411	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2824	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2412		2825
2413	#if EV_USE_INOTIFY	2826	#if EV_USE_INOTIFY
2414	# define EV_INOTIFY_BUFSIZE 8192	2827	# define EV_INOTIFY_BUFSIZE 8192
…		…
2418	{	2831	{
2419	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);	2832	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);
2420		2833
2421	if (w->wd < 0)	2834	if (w->wd < 0)
2422	{	2835	{
		2836	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2423	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2837	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2424		2838
2425	/* monitor some parent directory for speedup hints */	2839	/* monitor some parent directory for speedup hints */
2426	/* note that exceeding the hardcoded limit is not a correctness issue, */	2840	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2427	/* but an efficiency issue only */	2841	/* but an efficiency issue only */
2428	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2842	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2429	{	2843	{
2430	char path [4096];	2844	char path [4096];
2431	strcpy (path, w->path);	2845	strcpy (path, w->path);
…		…
2435	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2849	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2436	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2850	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2437		2851
2438	char *pend = strrchr (path, '/');	2852	char *pend = strrchr (path, '/');
2439		2853
2440	if (!pend)	2854	if (!pend || pend == path)
2441	break; /* whoops, no '/', complain to your admin */	2855	break;
2442		2856
2443	*pend = 0;	2857	*pend = 0;
2444	w->wd = inotify_add_watch (fs_fd, path, mask);	2858	w->wd = inotify_add_watch (fs_fd, path, mask);
2445	}	2859	}
2446	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2860	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2447	}	2861	}
2448	}	2862	}
2449	else
2450	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2451		2863
2452	if (w->wd >= 0)	2864	if (w->wd >= 0)
		2865	{
2453	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2866	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2867
		2868	/* now local changes will be tracked by inotify, but remote changes won't */
		2869	/* unless the filesystem it known to be local, we therefore still poll */
		2870	/* also do poll on <2.6.25, but with normal frequency */
		2871	struct statfs sfs;
		2872
		2873	if (fs_2625 && !statfs (w->path, &sfs))
		2874	if (sfs.f_type == 0x1373 /* devfs */
		2875	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2876	|| sfs.f_type == 0x3153464a /* jfs */
		2877	|| sfs.f_type == 0x52654973 /* reiser3 */
		2878	|| sfs.f_type == 0x01021994 /* tempfs */
		2879	|| sfs.f_type == 0x58465342 /* xfs */)
		2880	return;
		2881
		2882	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2883	ev_timer_again (EV_A_ &w->timer);
		2884	}
2454	}	2885	}
2455		2886
2456	static void noinline	2887	static void noinline
2457	infy_del (EV_P_ ev_stat *w)	2888	infy_del (EV_P_ ev_stat *w)
2458	{	2889	{
…		…
2472		2903
2473	static void noinline	2904	static void noinline
2474	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2905	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2475	{	2906	{
2476	if (slot < 0)	2907	if (slot < 0)
2477	/* overflow, need to check for all hahs slots */	2908	/* overflow, need to check for all hash slots */
2478	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2909	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2479	infy_wd (EV_A_ slot, wd, ev);	2910	infy_wd (EV_A_ slot, wd, ev);
2480	else	2911	else
2481	{	2912	{
2482	WL w_;	2913	WL w_;
…		…
2488		2919
2489	if (w->wd == wd || wd == -1)	2920	if (w->wd == wd || wd == -1)
2490	{	2921	{
2491	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2922	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2492	{	2923	{
		2924	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2493	w->wd = -1;	2925	w->wd = -1;
2494	infy_add (EV_A_ w); /* re-add, no matter what */	2926	infy_add (EV_A_ w); /* re-add, no matter what */
2495	}	2927	}
2496		2928
2497	stat_timer_cb (EV_A_ &w->timer, 0);	2929	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2510		2942
2511	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2943	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2512	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2944	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2513	}	2945	}
2514		2946
2515	void inline_size	2947	inline_size void
		2948	check_2625 (EV_P)
		2949	{
		2950	/* kernels < 2.6.25 are borked
		2951	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2952	*/
		2953	struct utsname buf;
		2954	int major, minor, micro;
		2955
		2956	if (uname (&buf))
		2957	return;
		2958
		2959	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2960	return;
		2961
		2962	if (major < 2
		2963	|| (major == 2 && minor < 6)
		2964	|| (major == 2 && minor == 6 && micro < 25))
		2965	return;
		2966
		2967	fs_2625 = 1;
		2968	}
		2969
		2970	inline_size void
2516	infy_init (EV_P)	2971	infy_init (EV_P)
2517	{	2972	{
2518	if (fs_fd != -2)	2973	if (fs_fd != -2)
2519	return;	2974	return;
		2975
		2976	fs_fd = -1;
		2977
		2978	check_2625 (EV_A);
2520		2979
2521	fs_fd = inotify_init ();	2980	fs_fd = inotify_init ();
2522		2981
2523	if (fs_fd >= 0)	2982	if (fs_fd >= 0)
2524	{	2983	{
…		…
2526	ev_set_priority (&fs_w, EV_MAXPRI);	2985	ev_set_priority (&fs_w, EV_MAXPRI);
2527	ev_io_start (EV_A_ &fs_w);	2986	ev_io_start (EV_A_ &fs_w);
2528	}	2987	}
2529	}	2988	}
2530		2989
2531	void inline_size	2990	inline_size void
2532	infy_fork (EV_P)	2991	infy_fork (EV_P)
2533	{	2992	{
2534	int slot;	2993	int slot;
2535		2994
2536	if (fs_fd < 0)	2995	if (fs_fd < 0)
…		…
2552	w->wd = -1;	3011	w->wd = -1;
2553		3012
2554	if (fs_fd >= 0)	3013	if (fs_fd >= 0)
2555	infy_add (EV_A_ w); /* re-add, no matter what */	3014	infy_add (EV_A_ w); /* re-add, no matter what */
2556	else	3015	else
2557	ev_timer_start (EV_A_ &w->timer);	3016	ev_timer_again (EV_A_ &w->timer);
2558	}	3017	}
2559
2560	}	3018	}
2561	}	3019	}
2562		3020
		3021	#endif
		3022
		3023	#ifdef _WIN32
		3024	# define EV_LSTAT(p,b) _stati64 (p, b)
		3025	#else
		3026	# define EV_LSTAT(p,b) lstat (p, b)
2563	#endif	3027	#endif
2564		3028
2565	void	3029	void
2566	ev_stat_stat (EV_P_ ev_stat *w)	3030	ev_stat_stat (EV_P_ ev_stat *w)
2567	{	3031	{
…		…
2594	|| w->prev.st_atime != w->attr.st_atime	3058	|| w->prev.st_atime != w->attr.st_atime
2595	|| w->prev.st_mtime != w->attr.st_mtime	3059	|| w->prev.st_mtime != w->attr.st_mtime
2596	|| w->prev.st_ctime != w->attr.st_ctime	3060	|| w->prev.st_ctime != w->attr.st_ctime
2597	) {	3061	) {
2598	#if EV_USE_INOTIFY	3062	#if EV_USE_INOTIFY
		3063	if (fs_fd >= 0)
		3064	{
2599	infy_del (EV_A_ w);	3065	infy_del (EV_A_ w);
2600	infy_add (EV_A_ w);	3066	infy_add (EV_A_ w);
2601	ev_stat_stat (EV_A_ w); /* avoid race... */	3067	ev_stat_stat (EV_A_ w); /* avoid race... */
		3068	}
2602	#endif	3069	#endif
2603		3070
2604	ev_feed_event (EV_A_ w, EV_STAT);	3071	ev_feed_event (EV_A_ w, EV_STAT);
2605	}	3072	}
2606	}	3073	}
…		…
2609	ev_stat_start (EV_P_ ev_stat *w)	3076	ev_stat_start (EV_P_ ev_stat *w)
2610	{	3077	{
2611	if (expect_false (ev_is_active (w)))	3078	if (expect_false (ev_is_active (w)))
2612	return;	3079	return;
2613		3080
2614	/* since we use memcmp, we need to clear any padding data etc. */
2615	memset (&w->prev, 0, sizeof (ev_statdata));
2616	memset (&w->attr, 0, sizeof (ev_statdata));
2617
2618	ev_stat_stat (EV_A_ w);	3081	ev_stat_stat (EV_A_ w);
2619		3082
		3083	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2620	if (w->interval < MIN_STAT_INTERVAL)	3084	w->interval = MIN_STAT_INTERVAL;
2621	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2622		3085
2623	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	3086	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2624	ev_set_priority (&w->timer, ev_priority (w));	3087	ev_set_priority (&w->timer, ev_priority (w));
2625		3088
2626	#if EV_USE_INOTIFY	3089	#if EV_USE_INOTIFY
2627	infy_init (EV_A);	3090	infy_init (EV_A);
2628		3091
2629	if (fs_fd >= 0)	3092	if (fs_fd >= 0)
2630	infy_add (EV_A_ w);	3093	infy_add (EV_A_ w);
2631	else	3094	else
2632	#endif	3095	#endif
2633	ev_timer_start (EV_A_ &w->timer);	3096	ev_timer_again (EV_A_ &w->timer);
2634		3097
2635	ev_start (EV_A_ (W)w, 1);	3098	ev_start (EV_A_ (W)w, 1);
2636		3099
2637	EV_FREQUENT_CHECK;	3100	EV_FREQUENT_CHECK;
2638	}	3101	}
…		…
2798	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3261	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2799	{	3262	{
2800	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3263	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2801		3264
2802	{	3265	{
2803	struct ev_loop *loop = w->other;	3266	EV_P = w->other;
2804		3267
2805	while (fdchangecnt)	3268	while (fdchangecnt)
2806	{	3269	{
2807	fd_reify (EV_A);	3270	fd_reify (EV_A);
2808	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3271	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2809	}	3272	}
2810	}	3273	}
2811	}	3274	}
2812		3275
		3276	static void
		3277	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3278	{
		3279	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3280
		3281	ev_embed_stop (EV_A_ w);
		3282
		3283	{
		3284	EV_P = w->other;
		3285
		3286	ev_loop_fork (EV_A);
		3287	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3288	}
		3289
		3290	ev_embed_start (EV_A_ w);
		3291	}
		3292
2813	#if 0	3293	#if 0
2814	static void	3294	static void
2815	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3295	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2816	{	3296	{
2817	ev_idle_stop (EV_A_ idle);	3297	ev_idle_stop (EV_A_ idle);
…		…
2823	{	3303	{
2824	if (expect_false (ev_is_active (w)))	3304	if (expect_false (ev_is_active (w)))
2825	return;	3305	return;
2826		3306
2827	{	3307	{
2828	struct ev_loop *loop = w->other;	3308	EV_P = w->other;
2829	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3309	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2830	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3310	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2831	}	3311	}
2832		3312
2833	EV_FREQUENT_CHECK;	3313	EV_FREQUENT_CHECK;
2834		3314
…		…
2837		3317
2838	ev_prepare_init (&w->prepare, embed_prepare_cb);	3318	ev_prepare_init (&w->prepare, embed_prepare_cb);
2839	ev_set_priority (&w->prepare, EV_MINPRI);	3319	ev_set_priority (&w->prepare, EV_MINPRI);
2840	ev_prepare_start (EV_A_ &w->prepare);	3320	ev_prepare_start (EV_A_ &w->prepare);
2841		3321
		3322	ev_fork_init (&w->fork, embed_fork_cb);
		3323	ev_fork_start (EV_A_ &w->fork);
		3324
2842	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3325	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2843		3326
2844	ev_start (EV_A_ (W)w, 1);	3327	ev_start (EV_A_ (W)w, 1);
2845		3328
2846	EV_FREQUENT_CHECK;	3329	EV_FREQUENT_CHECK;
…		…
2853	if (expect_false (!ev_is_active (w)))	3336	if (expect_false (!ev_is_active (w)))
2854	return;	3337	return;
2855		3338
2856	EV_FREQUENT_CHECK;	3339	EV_FREQUENT_CHECK;
2857		3340
2858	ev_io_stop (EV_A_ &w->io);	3341	ev_io_stop (EV_A_ &w->io);
2859	ev_prepare_stop (EV_A_ &w->prepare);	3342	ev_prepare_stop (EV_A_ &w->prepare);
2860		3343	ev_fork_stop (EV_A_ &w->fork);
2861	ev_stop (EV_A_ (W)w);
2862		3344
2863	EV_FREQUENT_CHECK;	3345	EV_FREQUENT_CHECK;
2864	}	3346	}
2865	#endif	3347	#endif
2866		3348
…		…
2943		3425
2944	void	3426	void
2945	ev_async_send (EV_P_ ev_async *w)	3427	ev_async_send (EV_P_ ev_async *w)
2946	{	3428	{
2947	w->sent = 1;	3429	w->sent = 1;
2948	evpipe_write (EV_A_ &gotasync);	3430	evpipe_write (EV_A_ &async_pending);
2949	}	3431	}
2950	#endif	3432	#endif
2951		3433
2952	/*****************************************************************************/	3434	/*****************************************************************************/
2953		3435
…		…
2963	once_cb (EV_P_ struct ev_once *once, int revents)	3445	once_cb (EV_P_ struct ev_once *once, int revents)
2964	{	3446	{
2965	void (*cb)(int revents, void *arg) = once->cb;	3447	void (*cb)(int revents, void *arg) = once->cb;
2966	void *arg = once->arg;	3448	void *arg = once->arg;
2967		3449
2968	ev_io_stop (EV_A_ &once->io);	3450	ev_io_stop (EV_A_ &once->io);
2969	ev_timer_stop (EV_A_ &once->to);	3451	ev_timer_stop (EV_A_ &once->to);
2970	ev_free (once);	3452	ev_free (once);
2971		3453
2972	cb (revents, arg);	3454	cb (revents, arg);
2973	}	3455	}
2974		3456
2975	static void	3457	static void
2976	once_cb_io (EV_P_ ev_io *w, int revents)	3458	once_cb_io (EV_P_ ev_io *w, int revents)
2977	{	3459	{
2978	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3460	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3461
		3462	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2979	}	3463	}
2980		3464
2981	static void	3465	static void
2982	once_cb_to (EV_P_ ev_timer *w, int revents)	3466	once_cb_to (EV_P_ ev_timer *w, int revents)
2983	{	3467	{
2984	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3468	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3469
		3470	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2985	}	3471	}
2986		3472
2987	void	3473	void
2988	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3474	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2989	{	3475	{
…		…
3011	ev_timer_set (&once->to, timeout, 0.);	3497	ev_timer_set (&once->to, timeout, 0.);
3012	ev_timer_start (EV_A_ &once->to);	3498	ev_timer_start (EV_A_ &once->to);
3013	}	3499	}
3014	}	3500	}
3015		3501
		3502	/*****************************************************************************/
		3503
		3504	#if EV_WALK_ENABLE
		3505	void
		3506	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3507	{
		3508	int i, j;
		3509	ev_watcher_list *wl, *wn;
		3510
		3511	if (types & (EV_IO | EV_EMBED))
		3512	for (i = 0; i < anfdmax; ++i)
		3513	for (wl = anfds [i].head; wl; )
		3514	{
		3515	wn = wl->next;
		3516
		3517	#if EV_EMBED_ENABLE
		3518	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3519	{
		3520	if (types & EV_EMBED)
		3521	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3522	}
		3523	else
		3524	#endif
		3525	#if EV_USE_INOTIFY
		3526	if (ev_cb ((ev_io *)wl) == infy_cb)
		3527	;
		3528	else
		3529	#endif
		3530	if ((ev_io *)wl != &pipe_w)
		3531	if (types & EV_IO)
		3532	cb (EV_A_ EV_IO, wl);
		3533
		3534	wl = wn;
		3535	}
		3536
		3537	if (types & (EV_TIMER | EV_STAT))
		3538	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3539	#if EV_STAT_ENABLE
		3540	/*TODO: timer is not always active*/
		3541	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3542	{
		3543	if (types & EV_STAT)
		3544	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3545	}
		3546	else
		3547	#endif
		3548	if (types & EV_TIMER)
		3549	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3550
		3551	#if EV_PERIODIC_ENABLE
		3552	if (types & EV_PERIODIC)
		3553	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3554	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3555	#endif
		3556
		3557	#if EV_IDLE_ENABLE
		3558	if (types & EV_IDLE)
		3559	for (j = NUMPRI; i--; )
		3560	for (i = idlecnt [j]; i--; )
		3561	cb (EV_A_ EV_IDLE, idles [j][i]);
		3562	#endif
		3563
		3564	#if EV_FORK_ENABLE
		3565	if (types & EV_FORK)
		3566	for (i = forkcnt; i--; )
		3567	if (ev_cb (forks [i]) != embed_fork_cb)
		3568	cb (EV_A_ EV_FORK, forks [i]);
		3569	#endif
		3570
		3571	#if EV_ASYNC_ENABLE
		3572	if (types & EV_ASYNC)
		3573	for (i = asynccnt; i--; )
		3574	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3575	#endif
		3576
		3577	if (types & EV_PREPARE)
		3578	for (i = preparecnt; i--; )
		3579	#if EV_EMBED_ENABLE
		3580	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3581	#endif
		3582	cb (EV_A_ EV_PREPARE, prepares [i]);
		3583
		3584	if (types & EV_CHECK)
		3585	for (i = checkcnt; i--; )
		3586	cb (EV_A_ EV_CHECK, checks [i]);
		3587
		3588	if (types & EV_SIGNAL)
		3589	for (i = 0; i < EV_NSIG - 1; ++i)
		3590	for (wl = signals [i].head; wl; )
		3591	{
		3592	wn = wl->next;
		3593	cb (EV_A_ EV_SIGNAL, wl);
		3594	wl = wn;
		3595	}
		3596
		3597	if (types & EV_CHILD)
		3598	for (i = EV_PID_HASHSIZE; i--; )
		3599	for (wl = childs [i]; wl; )
		3600	{
		3601	wn = wl->next;
		3602	cb (EV_A_ EV_CHILD, wl);
		3603	wl = wn;
		3604	}
		3605	/* EV_STAT 0x00001000 /* stat data changed */
		3606	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3607	}
		3608	#endif
		3609
3016	#if EV_MULTIPLICITY	3610	#if EV_MULTIPLICITY
3017	#include "ev_wrap.h"	3611	#include "ev_wrap.h"
3018	#endif	3612	#endif
3019		3613
3020	#ifdef __cplusplus	3614	#ifdef __cplusplus

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines