ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.237 by root, Wed May 7 15:16:56 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
129	# endif	151	# endif
130	# endif	152	# endif
131		153
132	#endif	154	#endif
133		155
134	#include <math.h>	156	#include <math.h>
135	#include <stdlib.h>	157	#include <stdlib.h>
136	#include <fcntl.h>	158	#include <fcntl.h>
…		…
154	#ifndef _WIN32	176	#ifndef _WIN32
155	# include <sys/time.h>	177	# include <sys/time.h>
156	# include <sys/wait.h>	178	# include <sys/wait.h>
157	# include <unistd.h>	179	# include <unistd.h>
158	#else	180	#else
		181	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	182	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	183	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	184	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	185	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	186	# endif
164	#endif	187	#endif
165		188
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	#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
		314	#if 0 /* debugging */
		315	# define EV_VERIFY 3
		316	# define EV_USE_4HEAP 1
		317	# define EV_HEAP_CACHE_AT 1
		318	#endif
		319
		320	#ifndef EV_VERIFY
		321	# define EV_VERIFY !EV_MINIMAL
		322	#endif
		323
		324	#ifndef EV_USE_4HEAP
		325	# define EV_USE_4HEAP !EV_MINIMAL
		326	#endif
		327
		328	#ifndef EV_HEAP_CACHE_AT
		329	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		330	#endif
		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
240	/* 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 */
241		347
242	#ifndef CLOCK_MONOTONIC	348	#ifndef CLOCK_MONOTONIC
243	# undef EV_USE_MONOTONIC	349	# undef EV_USE_MONOTONIC
244	# define EV_USE_MONOTONIC 0	350	# define EV_USE_MONOTONIC 0
…		…
259	# include <sys/select.h>	365	# include <sys/select.h>
260	# endif	366	# endif
261	#endif	367	#endif
262		368
263	#if EV_USE_INOTIFY	369	#if EV_USE_INOTIFY
		370	# include <sys/utsname.h>
		371	# include <sys/statfs.h>
264	# 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
265	#endif	378	#endif
266		379
267	#if EV_SELECT_IS_WINSOCKET	380	#if EV_SELECT_IS_WINSOCKET
268	# include <winsock.h>	381	# include <winsock.h>
269	#endif	382	#endif
270		383
271	#if EV_USE_EVENTFD	384	#if EV_USE_EVENTFD
272	/* 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 */
273	# 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
274	# ifdef __cplusplus	397	# ifdef __cplusplus
275	extern "C" {	398	extern "C" {
276	# endif	399	# endif
277	int eventfd (unsigned int initval, int flags);	400	int eventfd (unsigned int initval, int flags);
278	# ifdef __cplusplus	401	# ifdef __cplusplus
279	}	402	}
280	# endif	403	# endif
281	#endif	404	#endif
282		405
		406	#if EV_USE_SIGNALFD
		407	# include <sys/signalfd.h>
		408	#endif
		409
283	/**/	410	/**/
		411
		412	#if EV_VERIFY >= 3
		413	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		414	#else
		415	# define EV_FREQUENT_CHECK do { } while (0)
		416	#endif
284		417
285	/*	418	/*
286	* This is used to avoid floating point rounding problems.	419	* This is used to avoid floating point rounding problems.
287	* It is added to ev_rt_now when scheduling periodics	420	* It is added to ev_rt_now when scheduling periodics
288	* to ensure progress, time-wise, even when rounding	421	* to ensure progress, time-wise, even when rounding
…		…
315	# define inline_speed static noinline	448	# define inline_speed static noinline
316	#else	449	#else
317	# define inline_speed static inline	450	# define inline_speed static inline
318	#endif	451	#endif
319		452
320	#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
321	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	458	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		459	#endif
322		460
323	#define EMPTY /* required for microsofts broken pseudo-c compiler */	461	#define EMPTY /* required for microsofts broken pseudo-c compiler */
324	#define EMPTY2(a,b) /* used to suppress some warnings */	462	#define EMPTY2(a,b) /* used to suppress some warnings */
325		463
326	typedef ev_watcher *W;	464	typedef ev_watcher *W;
…		…
328	typedef ev_watcher_time *WT;	466	typedef ev_watcher_time *WT;
329		467
330	#define ev_active(w) ((W)(w))->active	468	#define ev_active(w) ((W)(w))->active
331	#define ev_at(w) ((WT)(w))->at	469	#define ev_at(w) ((WT)(w))->at
332		470
333	#if EV_USE_MONOTONIC	471	#if EV_USE_REALTIME
334	/* 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 */
335	/* 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
336	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? */
337	#endif	479	#endif
338		480
339	#ifdef _WIN32	481	#ifdef _WIN32
340	# include "ev_win32.c"	482	# include "ev_win32.c"
…		…
349	{	491	{
350	syserr_cb = cb;	492	syserr_cb = cb;
351	}	493	}
352		494
353	static void noinline	495	static void noinline
354	syserr (const char *msg)	496	ev_syserr (const char *msg)
355	{	497	{
356	if (!msg)	498	if (!msg)
357	msg = "(libev) system error";	499	msg = "(libev) system error";
358		500
359	if (syserr_cb)	501	if (syserr_cb)
…		…
405	#define ev_malloc(size) ev_realloc (0, (size))	547	#define ev_malloc(size) ev_realloc (0, (size))
406	#define ev_free(ptr) ev_realloc ((ptr), 0)	548	#define ev_free(ptr) ev_realloc ((ptr), 0)
407		549
408	/*****************************************************************************/	550	/*****************************************************************************/
409		551
		552	/* set in reify when reification needed */
		553	#define EV_ANFD_REIFY 1
		554
		555	/* file descriptor info structure */
410	typedef struct	556	typedef struct
411	{	557	{
412	WL head;	558	WL head;
413	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 */
414	unsigned char reify;	562	unsigned char unused;
		563	#if EV_USE_EPOLL
		564	unsigned int egen; /* generation counter to counter epoll bugs */
		565	#endif
415	#if EV_SELECT_IS_WINSOCKET	566	#if EV_SELECT_IS_WINSOCKET
416	SOCKET handle;	567	SOCKET handle;
417	#endif	568	#endif
418	} ANFD;	569	} ANFD;
419		570
		571	/* stores the pending event set for a given watcher */
420	typedef struct	572	typedef struct
421	{	573	{
422	W w;	574	W w;
423	int events;	575	int events; /* the pending event set for the given watcher */
424	} ANPENDING;	576	} ANPENDING;
425		577
426	#if EV_USE_INOTIFY	578	#if EV_USE_INOTIFY
		579	/* hash table entry per inotify-id */
427	typedef struct	580	typedef struct
428	{	581	{
429	WL head;	582	WL head;
430	} ANFS;	583	} ANFS;
		584	#endif
		585
		586	/* Heap Entry */
		587	#if EV_HEAP_CACHE_AT
		588	/* a heap element */
		589	typedef struct {
		590	ev_tstamp at;
		591	WT w;
		592	} ANHE;
		593
		594	#define ANHE_w(he) (he).w /* access watcher, read-write */
		595	#define ANHE_at(he) (he).at /* access cached at, read-only */
		596	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		597	#else
		598	/* a heap element */
		599	typedef WT ANHE;
		600
		601	#define ANHE_w(he) (he)
		602	#define ANHE_at(he) (he)->at
		603	#define ANHE_at_cache(he)
431	#endif	604	#endif
432		605
433	#if EV_MULTIPLICITY	606	#if EV_MULTIPLICITY
434		607
435	struct ev_loop	608	struct ev_loop
…		…
454		627
455	static int ev_default_loop_ptr;	628	static int ev_default_loop_ptr;
456		629
457	#endif	630	#endif
458		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
459	/*****************************************************************************/	644	/*****************************************************************************/
460		645
		646	#ifndef EV_HAVE_EV_TIME
461	ev_tstamp	647	ev_tstamp
462	ev_time (void)	648	ev_time (void)
463	{	649	{
464	#if EV_USE_REALTIME	650	#if EV_USE_REALTIME
		651	if (expect_true (have_realtime))
		652	{
465	struct timespec ts;	653	struct timespec ts;
466	clock_gettime (CLOCK_REALTIME, &ts);	654	clock_gettime (CLOCK_REALTIME, &ts);
467	return ts.tv_sec + ts.tv_nsec * 1e-9;	655	return ts.tv_sec + ts.tv_nsec * 1e-9;
468	#else	656	}
		657	#endif
		658
469	struct timeval tv;	659	struct timeval tv;
470	gettimeofday (&tv, 0);	660	gettimeofday (&tv, 0);
471	return tv.tv_sec + tv.tv_usec * 1e-6;	661	return tv.tv_sec + tv.tv_usec * 1e-6;
472	#endif
473	}	662	}
		663	#endif
474		664
475	ev_tstamp inline_size	665	inline_size ev_tstamp
476	get_clock (void)	666	get_clock (void)
477	{	667	{
478	#if EV_USE_MONOTONIC	668	#if EV_USE_MONOTONIC
479	if (expect_true (have_monotonic))	669	if (expect_true (have_monotonic))
480	{	670	{
…		…
513	struct timeval tv;	703	struct timeval tv;
514		704
515	tv.tv_sec = (time_t)delay;	705	tv.tv_sec = (time_t)delay;
516	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	706	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
517		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 */
518	select (0, 0, 0, 0, &tv);	711	select (0, 0, 0, 0, &tv);
519	#endif	712	#endif
520	}	713	}
521	}	714	}
522		715
523	/*****************************************************************************/	716	/*****************************************************************************/
524		717
525	#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 */
526		719
527	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
528	array_nextsize (int elem, int cur, int cnt)	723	array_nextsize (int elem, int cur, int cnt)
529	{	724	{
530	int ncur = cur + 1;	725	int ncur = cur + 1;
531		726
532	do	727	do
…		…
549	array_realloc (int elem, void *base, int *cur, int cnt)	744	array_realloc (int elem, void *base, int *cur, int cnt)
550	{	745	{
551	*cur = array_nextsize (elem, *cur, cnt);	746	*cur = array_nextsize (elem, *cur, cnt);
552	return ev_realloc (base, elem * *cur);	747	return ev_realloc (base, elem * *cur);
553	}	748	}
		749
		750	#define array_init_zero(base,count) \
		751	memset ((void *)(base), 0, sizeof (*(base)) * (count))
554		752
555	#define array_needsize(type,base,cur,cnt,init) \	753	#define array_needsize(type,base,cur,cnt,init) \
556	if (expect_false ((cnt) > (cur))) \	754	if (expect_false ((cnt) > (cur))) \
557	{ \	755	{ \
558	int ocur_ = (cur); \	756	int ocur_ = (cur); \
…		…
570	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	768	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
571	}	769	}
572	#endif	770	#endif
573		771
574	#define array_free(stem, idx) \	772	#define array_free(stem, idx) \
575	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
576		774
577	/*****************************************************************************/	775	/*****************************************************************************/
		776
		777	/* dummy callback for pending events */
		778	static void noinline
		779	pendingcb (EV_P_ ev_prepare *w, int revents)
		780	{
		781	}
578		782
579	void noinline	783	void noinline
580	ev_feed_event (EV_P_ void *w, int revents)	784	ev_feed_event (EV_P_ void *w, int revents)
581	{	785	{
582	W w_ = (W)w;	786	W w_ = (W)w;
…		…
591	pendings [pri][w_->pending - 1].w = w_;	795	pendings [pri][w_->pending - 1].w = w_;
592	pendings [pri][w_->pending - 1].events = revents;	796	pendings [pri][w_->pending - 1].events = revents;
593	}	797	}
594	}	798	}
595		799
596	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
597	queue_events (EV_P_ W *events, int eventcnt, int type)	816	queue_events (EV_P_ W *events, int eventcnt, int type)
598	{	817	{
599	int i;	818	int i;
600		819
601	for (i = 0; i < eventcnt; ++i)	820	for (i = 0; i < eventcnt; ++i)
602	ev_feed_event (EV_A_ events [i], type);	821	ev_feed_event (EV_A_ events [i], type);
603	}	822	}
604		823
605	/*****************************************************************************/	824	/*****************************************************************************/
606		825
607	void inline_size	826	inline_speed void
608	anfds_init (ANFD *base, int count)
609	{
610	while (count--)
611	{
612	base->head = 0;
613	base->events = EV_NONE;
614	base->reify = 0;
615
616	++base;
617	}
618	}
619
620	void inline_speed
621	fd_event (EV_P_ int fd, int revents)	827	fd_event_nc (EV_P_ int fd, int revents)
622	{	828	{
623	ANFD *anfd = anfds + fd;	829	ANFD *anfd = anfds + fd;
624	ev_io *w;	830	ev_io *w;
625		831
626	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)
…		…
630	if (ev)	836	if (ev)
631	ev_feed_event (EV_A_ (W)w, ev);	837	ev_feed_event (EV_A_ (W)w, ev);
632	}	838	}
633	}	839	}
634		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
635	void	852	void
636	ev_feed_fd_event (EV_P_ int fd, int revents)	853	ev_feed_fd_event (EV_P_ int fd, int revents)
637	{	854	{
638	if (fd >= 0 && fd < anfdmax)	855	if (fd >= 0 && fd < anfdmax)
639	fd_event (EV_A_ fd, revents);	856	fd_event_nc (EV_A_ fd, revents);
640	}	857	}
641		858
642	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
643	fd_reify (EV_P)	862	fd_reify (EV_P)
644	{	863	{
645	int i;	864	int i;
646		865
647	for (i = 0; i < fdchangecnt; ++i)	866	for (i = 0; i < fdchangecnt; ++i)
…		…
656	events |= (unsigned char)w->events;	875	events |= (unsigned char)w->events;
657		876
658	#if EV_SELECT_IS_WINSOCKET	877	#if EV_SELECT_IS_WINSOCKET
659	if (events)	878	if (events)
660	{	879	{
661	unsigned long argp;	880	unsigned long arg;
662	#ifdef EV_FD_TO_WIN32_HANDLE	881	#ifdef EV_FD_TO_WIN32_HANDLE
663	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	882	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
664	#else	883	#else
665	anfd->handle = _get_osfhandle (fd);	884	anfd->handle = _get_osfhandle (fd);
666	#endif	885	#endif
667	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));
668	}	887	}
669	#endif	888	#endif
670		889
671	{	890	{
672	unsigned char o_events = anfd->events;	891	unsigned char o_events = anfd->events;
673	unsigned char o_reify = anfd->reify;	892	unsigned char o_reify = anfd->reify;
674		893
675	anfd->reify = 0;	894	anfd->reify = 0;
676	anfd->events = events;	895	anfd->events = events;
677		896
678	if (o_events != events || o_reify & EV_IOFDSET)	897	if (o_events != events || o_reify & EV__IOFDSET)
679	backend_modify (EV_A_ fd, o_events, events);	898	backend_modify (EV_A_ fd, o_events, events);
680	}	899	}
681	}	900	}
682		901
683	fdchangecnt = 0;	902	fdchangecnt = 0;
684	}	903	}
685		904
686	void inline_size	905	/* something about the given fd changed */
		906	inline_size void
687	fd_change (EV_P_ int fd, int flags)	907	fd_change (EV_P_ int fd, int flags)
688	{	908	{
689	unsigned char reify = anfds [fd].reify;	909	unsigned char reify = anfds [fd].reify;
690	anfds [fd].reify |= flags;	910	anfds [fd].reify |= flags;
691		911
…		…
695	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	915	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
696	fdchanges [fdchangecnt - 1] = fd;	916	fdchanges [fdchangecnt - 1] = fd;
697	}	917	}
698	}	918	}
699		919
700	void inline_speed	920	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		921	inline_speed void
701	fd_kill (EV_P_ int fd)	922	fd_kill (EV_P_ int fd)
702	{	923	{
703	ev_io *w;	924	ev_io *w;
704		925
705	while ((w = (ev_io *)anfds [fd].head))	926	while ((w = (ev_io *)anfds [fd].head))
…		…
707	ev_io_stop (EV_A_ w);	928	ev_io_stop (EV_A_ w);
708	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);
709	}	930	}
710	}	931	}
711		932
712	int inline_size	933	/* check whether the given fd is atcually valid, for error recovery */
		934	inline_size int
713	fd_valid (int fd)	935	fd_valid (int fd)
714	{	936	{
715	#ifdef _WIN32	937	#ifdef _WIN32
716	return _get_osfhandle (fd) != -1;	938	return _get_osfhandle (fd) != -1;
717	#else	939	#else
…		…
725	{	947	{
726	int fd;	948	int fd;
727		949
728	for (fd = 0; fd < anfdmax; ++fd)	950	for (fd = 0; fd < anfdmax; ++fd)
729	if (anfds [fd].events)	951	if (anfds [fd].events)
730	if (!fd_valid (fd) == -1 && errno == EBADF)	952	if (!fd_valid (fd) && errno == EBADF)
731	fd_kill (EV_A_ fd);	953	fd_kill (EV_A_ fd);
732	}	954	}
733		955
734	/* 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 */
735	static void noinline	957	static void noinline
…		…
739		961
740	for (fd = anfdmax; fd--; )	962	for (fd = anfdmax; fd--; )
741	if (anfds [fd].events)	963	if (anfds [fd].events)
742	{	964	{
743	fd_kill (EV_A_ fd);	965	fd_kill (EV_A_ fd);
744	return;	966	break;
745	}	967	}
746	}	968	}
747		969
748	/* 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 */
749	static void noinline	971	static void noinline
…		…
753		975
754	for (fd = 0; fd < anfdmax; ++fd)	976	for (fd = 0; fd < anfdmax; ++fd)
755	if (anfds [fd].events)	977	if (anfds [fd].events)
756	{	978	{
757	anfds [fd].events = 0;	979	anfds [fd].events = 0;
		980	anfds [fd].emask = 0;
758	fd_change (EV_A_ fd, EV_IOFDSET | 1);	981	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
759	}	982	}
760	}	983	}
761		984
762	/*****************************************************************************/	985	/*****************************************************************************/
		986
		987	/*
		988	* the heap functions want a real array index. array index 0 uis guaranteed to not
		989	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		990	* the branching factor of the d-tree.
		991	*/
763		992
764	/*	993	/*
765	* at the moment we allow libev the luxury of two heaps,	994	* at the moment we allow libev the luxury of two heaps,
766	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap	995	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
767	* which is more cache-efficient.	996	* which is more cache-efficient.
768	* the difference is about 5% with 50000+ watchers.	997	* the difference is about 5% with 50000+ watchers.
769	*/	998	*/
770	#define USE_4HEAP !EV_MINIMAL
771	#if USE_4HEAP	999	#if EV_USE_4HEAP
772		1000
773	#define DHEAP 4	1001	#define DHEAP 4
774	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	1002	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		1003	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		1004	#define UPHEAP_DONE(p,k) ((p) == (k))
775		1005
776	/* towards the root */	1006	/* away from the root */
777	void inline_speed	1007	inline_speed void
778	upheap (WT *heap, int k)	1008	downheap (ANHE *heap, int N, int k)
779	{	1009	{
780	WT w = heap [k];	1010	ANHE he = heap [k];
		1011	ANHE *E = heap + N + HEAP0;
781		1012
782	for (;;)	1013	for (;;)
783	{	1014	{
784	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
785
786	if (p >= HEAP0 || heap [p]->at <= w->at)
787	break;
788
789	heap [k] = heap [p];
790	ev_active (heap [k]) = k;
791	k = p;
792	}
793
794	heap [k] = w;
795	ev_active (heap [k]) = k;
796	}
797
798	/* away from the root */
799	void inline_speed
800	downheap (WT *heap, int N, int k)
801	{
802	WT w = heap [k];
803	WT *E = heap + N + HEAP0;
804
805	for (;;)
806	{
807	ev_tstamp minat;	1015	ev_tstamp minat;
808	WT *minpos;	1016	ANHE *minpos;
809	WT *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	1017	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
810		1018
811	// find minimum child	1019	/* find minimum child */
812	if (expect_true (pos + DHEAP - 1 < E))	1020	if (expect_true (pos + DHEAP - 1 < E))
813	{	1021	{
814	/* fast path */
815	(minpos = pos + 0), (minat = (*minpos)->at);	1022	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
816	if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at);	1023	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
817	if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at);	1024	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
818	if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at);	1025	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		1026	}
		1027	else if (pos < E)
		1028	{
		1029	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		1030	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		1031	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		1032	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
819	}	1033	}
820	else	1034	else
821	{
822	/* slow path */
823	if (pos >= E)
824	break;
825	(minpos = pos + 0), (minat = (*minpos)->at);
826	if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at);
827	if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at);
828	if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at);
829	}
830
831	if (w->at <= minat)
832	break;	1035	break;
833		1036
834	ev_active (*minpos) = k;	1037	if (ANHE_at (he) <= minat)
		1038	break;
		1039
835	heap [k] = *minpos;	1040	heap [k] = *minpos;
		1041	ev_active (ANHE_w (*minpos)) = k;
836		1042
837	k = minpos - heap;	1043	k = minpos - heap;
838	}	1044	}
839		1045
840	heap [k] = w;	1046	heap [k] = he;
841	ev_active (heap [k]) = k;	1047	ev_active (ANHE_w (he)) = k;
842	}	1048	}
843		1049
844	#else // 4HEAP	1050	#else /* 4HEAP */
845		1051
846	#define HEAP0 1	1052	#define HEAP0 1
		1053	#define HPARENT(k) ((k) >> 1)
		1054	#define UPHEAP_DONE(p,k) (!(p))
847		1055
848	/* towards the root */	1056	/* away from the root */
849	void inline_speed	1057	inline_speed void
850	upheap (WT *heap, int k)	1058	downheap (ANHE *heap, int N, int k)
851	{	1059	{
852	WT w = heap [k];	1060	ANHE he = heap [k];
853		1061
854	for (;;)	1062	for (;;)
855	{	1063	{
856	int p = k >> 1;	1064	int c = k << 1;
857		1065
858	/* maybe we could use a dummy element at heap [0]? */	1066	if (c >= N + HEAP0)
859	if (!p || heap [p]->at <= w->at)
860	break;	1067	break;
861		1068
862	heap [k] = heap [p];	1069	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
863	ev_active (heap [k]) = k;	1070	? 1 : 0;
864	k = p;
865	}
866		1071
867	heap [k] = w;	1072	if (ANHE_at (he) <= ANHE_at (heap [c]))
868	ev_active (heap [k]) = k;
869	}
870
871	/* away from the root */
872	void inline_speed
873	downheap (WT *heap, int N, int k)
874	{
875	WT w = heap [k];
876
877	for (;;)
878	{
879	int c = k << 1;
880
881	if (c > N)
882	break;	1073	break;
883		1074
884	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
885	? 1 : 0;
886
887	if (w->at <= heap [c]->at)
888	break;
889
890	heap [k] = heap [c];	1075	heap [k] = heap [c];
891	((W)heap [k])->active = k;	1076	ev_active (ANHE_w (heap [k])) = k;
892		1077
893	k = c;	1078	k = c;
894	}	1079	}
895		1080
896	heap [k] = w;	1081	heap [k] = he;
		1082	ev_active (ANHE_w (he)) = k;
		1083	}
		1084	#endif
		1085
		1086	/* towards the root */
		1087	inline_speed void
		1088	upheap (ANHE *heap, int k)
		1089	{
		1090	ANHE he = heap [k];
		1091
		1092	for (;;)
		1093	{
		1094	int p = HPARENT (k);
		1095
		1096	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		1097	break;
		1098
		1099	heap [k] = heap [p];
897	ev_active (heap [k]) = k;	1100	ev_active (ANHE_w (heap [k])) = k;
898	}	1101	k = p;
899	#endif	1102	}
900		1103
901	void inline_size	1104	heap [k] = he;
		1105	ev_active (ANHE_w (he)) = k;
		1106	}
		1107
		1108	/* move an element suitably so it is in a correct place */
		1109	inline_size void
902	adjustheap (WT *heap, int N, int k)	1110	adjustheap (ANHE *heap, int N, int k)
903	{	1111	{
		1112	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
904	upheap (heap, k);	1113	upheap (heap, k);
		1114	else
905	downheap (heap, N, k);	1115	downheap (heap, N, k);
		1116	}
		1117
		1118	/* rebuild the heap: this function is used only once and executed rarely */
		1119	inline_size void
		1120	reheap (ANHE *heap, int N)
		1121	{
		1122	int i;
		1123
		1124	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		1125	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		1126	for (i = 0; i < N; ++i)
		1127	upheap (heap, i + HEAP0);
906	}	1128	}
907		1129
908	/*****************************************************************************/	1130	/*****************************************************************************/
909		1131
		1132	/* associate signal watchers to a signal signal */
910	typedef struct	1133	typedef struct
911	{	1134	{
		1135	EV_ATOMIC_T pending;
		1136	#if EV_MULTIPLICITY
		1137	EV_P;
		1138	#endif
912	WL head;	1139	WL head;
913	EV_ATOMIC_T gotsig;
914	} ANSIG;	1140	} ANSIG;
915		1141
916	static ANSIG *signals;	1142	static ANSIG signals [EV_NSIG - 1];
917	static int signalmax;
918
919	static EV_ATOMIC_T gotsig;
920
921	void inline_size
922	signals_init (ANSIG *base, int count)
923	{
924	while (count--)
925	{
926	base->head = 0;
927	base->gotsig = 0;
928
929	++base;
930	}
931	}
932		1143
933	/*****************************************************************************/	1144	/*****************************************************************************/
934		1145
935	void inline_speed	1146	/* used to prepare libev internal fd's */
		1147	/* this is not fork-safe */
		1148	inline_speed void
936	fd_intern (int fd)	1149	fd_intern (int fd)
937	{	1150	{
938	#ifdef _WIN32	1151	#ifdef _WIN32
939	int arg = 1;	1152	unsigned long arg = 1;
940	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1153	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
941	#else	1154	#else
942	fcntl (fd, F_SETFD, FD_CLOEXEC);	1155	fcntl (fd, F_SETFD, FD_CLOEXEC);
943	fcntl (fd, F_SETFL, O_NONBLOCK);	1156	fcntl (fd, F_SETFL, O_NONBLOCK);
944	#endif	1157	#endif
945	}	1158	}
946		1159
947	static void noinline	1160	static void noinline
948	evpipe_init (EV_P)	1161	evpipe_init (EV_P)
949	{	1162	{
950	if (!ev_is_active (&pipeev))	1163	if (!ev_is_active (&pipe_w))
951	{	1164	{
952	#if EV_USE_EVENTFD	1165	#if EV_USE_EVENTFD
		1166	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1167	if (evfd < 0 && errno == EINVAL)
953	if ((evfd = eventfd (0, 0)) >= 0)	1168	evfd = eventfd (0, 0);
		1169
		1170	if (evfd >= 0)
954	{	1171	{
955	evpipe [0] = -1;	1172	evpipe [0] = -1;
956	fd_intern (evfd);	1173	fd_intern (evfd); /* doing it twice doesn't hurt */
957	ev_io_set (&pipeev, evfd, EV_READ);	1174	ev_io_set (&pipe_w, evfd, EV_READ);
958	}	1175	}
959	else	1176	else
960	#endif	1177	#endif
961	{	1178	{
962	while (pipe (evpipe))	1179	while (pipe (evpipe))
963	syserr ("(libev) error creating signal/async pipe");	1180	ev_syserr ("(libev) error creating signal/async pipe");
964		1181
965	fd_intern (evpipe [0]);	1182	fd_intern (evpipe [0]);
966	fd_intern (evpipe [1]);	1183	fd_intern (evpipe [1]);
967	ev_io_set (&pipeev, evpipe [0], EV_READ);	1184	ev_io_set (&pipe_w, evpipe [0], EV_READ);
968	}	1185	}
969		1186
970	ev_io_start (EV_A_ &pipeev);	1187	ev_io_start (EV_A_ &pipe_w);
971	ev_unref (EV_A); /* watcher should not keep loop alive */	1188	ev_unref (EV_A); /* watcher should not keep loop alive */
972	}	1189	}
973	}	1190	}
974		1191
975	void inline_size	1192	inline_size void
976	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1193	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
977	{	1194	{
978	if (!*flag)	1195	if (!*flag)
979	{	1196	{
980	int old_errno = errno; /* save errno because write might clobber it */	1197	int old_errno = errno; /* save errno because write might clobber it */
…		…
993		1210
994	errno = old_errno;	1211	errno = old_errno;
995	}	1212	}
996	}	1213	}
997		1214
		1215	/* called whenever the libev signal pipe */
		1216	/* got some events (signal, async) */
998	static void	1217	static void
999	pipecb (EV_P_ ev_io *iow, int revents)	1218	pipecb (EV_P_ ev_io *iow, int revents)
1000	{	1219	{
		1220	int i;
		1221
1001	#if EV_USE_EVENTFD	1222	#if EV_USE_EVENTFD
1002	if (evfd >= 0)	1223	if (evfd >= 0)
1003	{	1224	{
1004	uint64_t counter;	1225	uint64_t counter;
1005	read (evfd, &counter, sizeof (uint64_t));	1226	read (evfd, &counter, sizeof (uint64_t));
…		…
1009	{	1230	{
1010	char dummy;	1231	char dummy;
1011	read (evpipe [0], &dummy, 1);	1232	read (evpipe [0], &dummy, 1);
1012	}	1233	}
1013		1234
1014	if (gotsig && ev_is_default_loop (EV_A))	1235	if (sig_pending)
1015	{	1236	{
1016	int signum;	1237	sig_pending = 0;
1017	gotsig = 0;
1018		1238
1019	for (signum = signalmax; signum--; )	1239	for (i = EV_NSIG - 1; i--; )
1020	if (signals [signum].gotsig)	1240	if (expect_false (signals [i].pending))
1021	ev_feed_signal_event (EV_A_ signum + 1);	1241	ev_feed_signal_event (EV_A_ i + 1);
1022	}	1242	}
1023		1243
1024	#if EV_ASYNC_ENABLE	1244	#if EV_ASYNC_ENABLE
1025	if (gotasync)	1245	if (async_pending)
1026	{	1246	{
1027	int i;	1247	async_pending = 0;
1028	gotasync = 0;
1029		1248
1030	for (i = asynccnt; i--; )	1249	for (i = asynccnt; i--; )
1031	if (asyncs [i]->sent)	1250	if (asyncs [i]->sent)
1032	{	1251	{
1033	asyncs [i]->sent = 0;	1252	asyncs [i]->sent = 0;
…		…
1041		1260
1042	static void	1261	static void
1043	ev_sighandler (int signum)	1262	ev_sighandler (int signum)
1044	{	1263	{
1045	#if EV_MULTIPLICITY	1264	#if EV_MULTIPLICITY
1046	struct ev_loop *loop = &default_loop_struct;	1265	EV_P = signals [signum - 1].loop;
1047	#endif	1266	#endif
1048		1267
1049	#if _WIN32	1268	#if _WIN32
1050	signal (signum, ev_sighandler);	1269	signal (signum, ev_sighandler);
1051	#endif	1270	#endif
1052		1271
1053	signals [signum - 1].gotsig = 1;	1272	signals [signum - 1].pending = 1;
1054	evpipe_write (EV_A_ &gotsig);	1273	evpipe_write (EV_A_ &sig_pending);
1055	}	1274	}
1056		1275
1057	void noinline	1276	void noinline
1058	ev_feed_signal_event (EV_P_ int signum)	1277	ev_feed_signal_event (EV_P_ int signum)
1059	{	1278	{
1060	WL w;	1279	WL w;
1061		1280
		1281	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1282	return;
		1283
		1284	--signum;
		1285
1062	#if EV_MULTIPLICITY	1286	#if EV_MULTIPLICITY
1063	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 */
1064	#endif	1288	/* or, likely more useful, feeding a signal nobody is waiting for */
1065		1289
1066	--signum;	1290	if (expect_false (signals [signum].loop != EV_A))
1067
1068	if (signum < 0 || signum >= signalmax)
1069	return;	1291	return;
		1292	#endif
1070		1293
1071	signals [signum].gotsig = 0;	1294	signals [signum].pending = 0;
1072		1295
1073	for (w = signals [signum].head; w; w = w->next)	1296	for (w = signals [signum].head; w; w = w->next)
1074	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1297	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1075	}	1298	}
1076		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
1077	/*****************************************************************************/	1320	/*****************************************************************************/
1078		1321
1079	static WL childs [EV_PID_HASHSIZE];	1322	static WL childs [EV_PID_HASHSIZE];
1080		1323
1081	#ifndef _WIN32	1324	#ifndef _WIN32
…		…
1084		1327
1085	#ifndef WIFCONTINUED	1328	#ifndef WIFCONTINUED
1086	# define WIFCONTINUED(status) 0	1329	# define WIFCONTINUED(status) 0
1087	#endif	1330	#endif
1088		1331
1089	void inline_speed	1332	/* handle a single child status event */
		1333	inline_speed void
1090	child_reap (EV_P_ int chain, int pid, int status)	1334	child_reap (EV_P_ int chain, int pid, int status)
1091	{	1335	{
1092	ev_child *w;	1336	ev_child *w;
1093	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1337	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1094		1338
…		…
1107		1351
1108	#ifndef WCONTINUED	1352	#ifndef WCONTINUED
1109	# define WCONTINUED 0	1353	# define WCONTINUED 0
1110	#endif	1354	#endif
1111		1355
		1356	/* called on sigchld etc., calls waitpid */
1112	static void	1357	static void
1113	childcb (EV_P_ ev_signal *sw, int revents)	1358	childcb (EV_P_ ev_signal *sw, int revents)
1114	{	1359	{
1115	int pid, status;	1360	int pid, status;
1116		1361
…		…
1197	/* kqueue is borked on everything but netbsd apparently */	1442	/* kqueue is borked on everything but netbsd apparently */
1198	/* 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 */
1199	flags &= ~EVBACKEND_KQUEUE;	1444	flags &= ~EVBACKEND_KQUEUE;
1200	#endif	1445	#endif
1201	#ifdef __APPLE__	1446	#ifdef __APPLE__
1202	// flags &= ~EVBACKEND_KQUEUE; for documentation	1447	/* only select works correctly on that "unix-certified" platform */
1203	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 */
1204	#endif	1450	#endif
1205		1451
1206	return flags;	1452	return flags;
1207	}	1453	}
1208		1454
…		…
1222	ev_backend (EV_P)	1468	ev_backend (EV_P)
1223	{	1469	{
1224	return backend;	1470	return backend;
1225	}	1471	}
1226		1472
		1473	#if EV_MINIMAL < 2
1227	unsigned int	1474	unsigned int
1228	ev_loop_count (EV_P)	1475	ev_loop_count (EV_P)
1229	{	1476	{
1230	return loop_count;	1477	return loop_count;
1231	}	1478	}
1232		1479
		1480	unsigned int
		1481	ev_loop_depth (EV_P)
		1482	{
		1483	return loop_depth;
		1484	}
		1485
1233	void	1486	void
1234	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1487	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1235	{	1488	{
1236	io_blocktime = interval;	1489	io_blocktime = interval;
1237	}	1490	}
…		…
1240	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1493	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1241	{	1494	{
1242	timeout_blocktime = interval;	1495	timeout_blocktime = interval;
1243	}	1496	}
1244		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 */
1245	static void noinline	1523	static void noinline
1246	loop_init (EV_P_ unsigned int flags)	1524	loop_init (EV_P_ unsigned int flags)
1247	{	1525	{
1248	if (!backend)	1526	if (!backend)
1249	{	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
1250	#if EV_USE_MONOTONIC	1538	#if EV_USE_MONOTONIC
		1539	if (!have_monotonic)
1251	{	1540	{
1252	struct timespec ts;	1541	struct timespec ts;
		1542
1253	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1543	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1254	have_monotonic = 1;	1544	have_monotonic = 1;
1255	}	1545	}
1256	#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"));
1257		1558
1258	ev_rt_now = ev_time ();	1559	ev_rt_now = ev_time ();
1259	mn_now = get_clock ();	1560	mn_now = get_clock ();
1260	now_floor = mn_now;	1561	now_floor = mn_now;
1261	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
1262		1566
1263	io_blocktime = 0.;	1567	io_blocktime = 0.;
1264	timeout_blocktime = 0.;	1568	timeout_blocktime = 0.;
1265	backend = 0;	1569	backend = 0;
1266	backend_fd = -1;	1570	backend_fd = -1;
1267	gotasync = 0;	1571	sig_pending = 0;
		1572	#if EV_ASYNC_ENABLE
		1573	async_pending = 0;
		1574	#endif
1268	#if EV_USE_INOTIFY	1575	#if EV_USE_INOTIFY
1269	fs_fd = -2;	1576	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1270	#endif	1577	#endif
1271		1578	#if EV_USE_SIGNALFD
1272	/* pid check not overridable via env */	1579	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1273	#ifndef _WIN32
1274	if (flags & EVFLAG_FORKCHECK)
1275	curpid = getpid ();
1276	#endif	1580	#endif
1277
1278	if (!(flags & EVFLAG_NOENV)
1279	&& !enable_secure ()
1280	&& getenv ("LIBEV_FLAGS"))
1281	flags = atoi (getenv ("LIBEV_FLAGS"));
1282		1581
1283	if (!(flags & 0x0000ffffU))	1582	if (!(flags & 0x0000ffffU))
1284	flags |= ev_recommended_backends ();	1583	flags |= ev_recommended_backends ();
1285		1584
1286	#if EV_USE_PORT	1585	#if EV_USE_PORT
…		…
1297	#endif	1596	#endif
1298	#if EV_USE_SELECT	1597	#if EV_USE_SELECT
1299	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1598	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1300	#endif	1599	#endif
1301		1600
		1601	ev_prepare_init (&pending_w, pendingcb);
		1602
1302	ev_init (&pipeev, pipecb);	1603	ev_init (&pipe_w, pipecb);
1303	ev_set_priority (&pipeev, EV_MAXPRI);	1604	ev_set_priority (&pipe_w, EV_MAXPRI);
1304	}	1605	}
1305	}	1606	}
1306		1607
		1608	/* free up a loop structure */
1307	static void noinline	1609	static void noinline
1308	loop_destroy (EV_P)	1610	loop_destroy (EV_P)
1309	{	1611	{
1310	int i;	1612	int i;
1311		1613
1312	if (ev_is_active (&pipeev))	1614	if (ev_is_active (&pipe_w))
1313	{	1615	{
1314	ev_ref (EV_A); /* signal watcher */	1616	/*ev_ref (EV_A);*/
1315	ev_io_stop (EV_A_ &pipeev);	1617	/*ev_io_stop (EV_A_ &pipe_w);*/
1316		1618
1317	#if EV_USE_EVENTFD	1619	#if EV_USE_EVENTFD
1318	if (evfd >= 0)	1620	if (evfd >= 0)
1319	close (evfd);	1621	close (evfd);
1320	#endif	1622	#endif
…		…
1324	close (evpipe [0]);	1626	close (evpipe [0]);
1325	close (evpipe [1]);	1627	close (evpipe [1]);
1326	}	1628	}
1327	}	1629	}
1328		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
1329	#if EV_USE_INOTIFY	1641	#if EV_USE_INOTIFY
1330	if (fs_fd >= 0)	1642	if (fs_fd >= 0)
1331	close (fs_fd);	1643	close (fs_fd);
1332	#endif	1644	#endif
1333		1645
…		…
1356	#if EV_IDLE_ENABLE	1668	#if EV_IDLE_ENABLE
1357	array_free (idle, [i]);	1669	array_free (idle, [i]);
1358	#endif	1670	#endif
1359	}	1671	}
1360		1672
1361	ev_free (anfds); anfdmax = 0;	1673	ev_free (anfds); anfds = 0; anfdmax = 0;
1362		1674
1363	/* 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);
1364	array_free (fdchange, EMPTY);	1677	array_free (fdchange, EMPTY);
1365	array_free (timer, EMPTY);	1678	array_free (timer, EMPTY);
1366	#if EV_PERIODIC_ENABLE	1679	#if EV_PERIODIC_ENABLE
1367	array_free (periodic, EMPTY);	1680	array_free (periodic, EMPTY);
1368	#endif	1681	#endif
…		…
1377		1690
1378	backend = 0;	1691	backend = 0;
1379	}	1692	}
1380		1693
1381	#if EV_USE_INOTIFY	1694	#if EV_USE_INOTIFY
1382	void inline_size infy_fork (EV_P);	1695	inline_size void infy_fork (EV_P);
1383	#endif	1696	#endif
1384		1697
1385	void inline_size	1698	inline_size void
1386	loop_fork (EV_P)	1699	loop_fork (EV_P)
1387	{	1700	{
1388	#if EV_USE_PORT	1701	#if EV_USE_PORT
1389	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1702	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1390	#endif	1703	#endif
…		…
1396	#endif	1709	#endif
1397	#if EV_USE_INOTIFY	1710	#if EV_USE_INOTIFY
1398	infy_fork (EV_A);	1711	infy_fork (EV_A);
1399	#endif	1712	#endif
1400		1713
1401	if (ev_is_active (&pipeev))	1714	if (ev_is_active (&pipe_w))
1402	{	1715	{
1403	/* this "locks" the handlers against writing to the pipe */	1716	/* this "locks" the handlers against writing to the pipe */
1404	/* while we modify the fd vars */	1717	/* while we modify the fd vars */
1405	gotsig = 1;	1718	sig_pending = 1;
1406	#if EV_ASYNC_ENABLE	1719	#if EV_ASYNC_ENABLE
1407	gotasync = 1;	1720	async_pending = 1;
1408	#endif	1721	#endif
1409		1722
1410	ev_ref (EV_A);	1723	ev_ref (EV_A);
1411	ev_io_stop (EV_A_ &pipeev);	1724	ev_io_stop (EV_A_ &pipe_w);
1412		1725
1413	#if EV_USE_EVENTFD	1726	#if EV_USE_EVENTFD
1414	if (evfd >= 0)	1727	if (evfd >= 0)
1415	close (evfd);	1728	close (evfd);
1416	#endif	1729	#endif
…		…
1421	close (evpipe [1]);	1734	close (evpipe [1]);
1422	}	1735	}
1423		1736
1424	evpipe_init (EV_A);	1737	evpipe_init (EV_A);
1425	/* now iterate over everything, in case we missed something */	1738	/* now iterate over everything, in case we missed something */
1426	pipecb (EV_A_ &pipeev, EV_READ);	1739	pipecb (EV_A_ &pipe_w, EV_READ);
1427	}	1740	}
1428		1741
1429	postfork = 0;	1742	postfork = 0;
1430	}	1743	}
1431		1744
1432	#if EV_MULTIPLICITY	1745	#if EV_MULTIPLICITY
		1746
1433	struct ev_loop *	1747	struct ev_loop *
1434	ev_loop_new (unsigned int flags)	1748	ev_loop_new (unsigned int flags)
1435	{	1749	{
1436	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));
1437		1751
1438	memset (loop, 0, sizeof (struct ev_loop));	1752	memset (EV_A, 0, sizeof (struct ev_loop));
1439
1440	loop_init (EV_A_ flags);	1753	loop_init (EV_A_ flags);
1441		1754
1442	if (ev_backend (EV_A))	1755	if (ev_backend (EV_A))
1443	return loop;	1756	return EV_A;
1444		1757
1445	return 0;	1758	return 0;
1446	}	1759	}
1447		1760
1448	void	1761	void
…		…
1454		1767
1455	void	1768	void
1456	ev_loop_fork (EV_P)	1769	ev_loop_fork (EV_P)
1457	{	1770	{
1458	postfork = 1; /* must be in line with ev_default_fork */	1771	postfork = 1; /* must be in line with ev_default_fork */
		1772	}
		1773	#endif /* multiplicity */
		1774
		1775	#if EV_VERIFY
		1776	static void noinline
		1777	verify_watcher (EV_P_ W w)
		1778	{
		1779	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1780
		1781	if (w->pending)
		1782	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1783	}
		1784
		1785	static void noinline
		1786	verify_heap (EV_P_ ANHE *heap, int N)
		1787	{
		1788	int i;
		1789
		1790	for (i = HEAP0; i < N + HEAP0; ++i)
		1791	{
		1792	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1793	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1794	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1795
		1796	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1797	}
		1798	}
		1799
		1800	static void noinline
		1801	array_verify (EV_P_ W *ws, int cnt)
		1802	{
		1803	while (cnt--)
		1804	{
		1805	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1806	verify_watcher (EV_A_ ws [cnt]);
		1807	}
		1808	}
		1809	#endif
		1810
		1811	#if EV_MINIMAL < 2
		1812	void
		1813	ev_loop_verify (EV_P)
		1814	{
		1815	#if EV_VERIFY
		1816	int i;
		1817	WL w;
		1818
		1819	assert (activecnt >= -1);
		1820
		1821	assert (fdchangemax >= fdchangecnt);
		1822	for (i = 0; i < fdchangecnt; ++i)
		1823	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1824
		1825	assert (anfdmax >= 0);
		1826	for (i = 0; i < anfdmax; ++i)
		1827	for (w = anfds [i].head; w; w = w->next)
		1828	{
		1829	verify_watcher (EV_A_ (W)w);
		1830	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1831	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1832	}
		1833
		1834	assert (timermax >= timercnt);
		1835	verify_heap (EV_A_ timers, timercnt);
		1836
		1837	#if EV_PERIODIC_ENABLE
		1838	assert (periodicmax >= periodiccnt);
		1839	verify_heap (EV_A_ periodics, periodiccnt);
		1840	#endif
		1841
		1842	for (i = NUMPRI; i--; )
		1843	{
		1844	assert (pendingmax [i] >= pendingcnt [i]);
		1845	#if EV_IDLE_ENABLE
		1846	assert (idleall >= 0);
		1847	assert (idlemax [i] >= idlecnt [i]);
		1848	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1849	#endif
		1850	}
		1851
		1852	#if EV_FORK_ENABLE
		1853	assert (forkmax >= forkcnt);
		1854	array_verify (EV_A_ (W *)forks, forkcnt);
		1855	#endif
		1856
		1857	#if EV_ASYNC_ENABLE
		1858	assert (asyncmax >= asynccnt);
		1859	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1860	#endif
		1861
		1862	assert (preparemax >= preparecnt);
		1863	array_verify (EV_A_ (W *)prepares, preparecnt);
		1864
		1865	assert (checkmax >= checkcnt);
		1866	array_verify (EV_A_ (W *)checks, checkcnt);
		1867
		1868	# if 0
		1869	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1870	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1871	# endif
		1872	#endif
1459	}	1873	}
1460	#endif	1874	#endif
1461		1875
1462	#if EV_MULTIPLICITY	1876	#if EV_MULTIPLICITY
1463	struct ev_loop *	1877	struct ev_loop *
…		…
1468	#endif	1882	#endif
1469	{	1883	{
1470	if (!ev_default_loop_ptr)	1884	if (!ev_default_loop_ptr)
1471	{	1885	{
1472	#if EV_MULTIPLICITY	1886	#if EV_MULTIPLICITY
1473	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1887	EV_P = ev_default_loop_ptr = &default_loop_struct;
1474	#else	1888	#else
1475	ev_default_loop_ptr = 1;	1889	ev_default_loop_ptr = 1;
1476	#endif	1890	#endif
1477		1891
1478	loop_init (EV_A_ flags);	1892	loop_init (EV_A_ flags);
…		…
1495		1909
1496	void	1910	void
1497	ev_default_destroy (void)	1911	ev_default_destroy (void)
1498	{	1912	{
1499	#if EV_MULTIPLICITY	1913	#if EV_MULTIPLICITY
1500	struct ev_loop *loop = ev_default_loop_ptr;	1914	EV_P = ev_default_loop_ptr;
1501	#endif	1915	#endif
		1916
		1917	ev_default_loop_ptr = 0;
1502		1918
1503	#ifndef _WIN32	1919	#ifndef _WIN32
1504	ev_ref (EV_A); /* child watcher */	1920	ev_ref (EV_A); /* child watcher */
1505	ev_signal_stop (EV_A_ &childev);	1921	ev_signal_stop (EV_A_ &childev);
1506	#endif	1922	#endif
…		…
1510		1926
1511	void	1927	void
1512	ev_default_fork (void)	1928	ev_default_fork (void)
1513	{	1929	{
1514	#if EV_MULTIPLICITY	1930	#if EV_MULTIPLICITY
1515	struct ev_loop *loop = ev_default_loop_ptr;	1931	EV_P = ev_default_loop_ptr;
1516	#endif	1932	#endif
1517		1933
1518	if (backend)
1519	postfork = 1; /* must be in line with ev_loop_fork */	1934	postfork = 1; /* must be in line with ev_loop_fork */
1520	}	1935	}
1521		1936
1522	/*****************************************************************************/	1937	/*****************************************************************************/
1523		1938
1524	void	1939	void
1525	ev_invoke (EV_P_ void *w, int revents)	1940	ev_invoke (EV_P_ void *w, int revents)
1526	{	1941	{
1527	EV_CB_INVOKE ((W)w, revents);	1942	EV_CB_INVOKE ((W)w, revents);
1528	}	1943	}
1529		1944
1530	void inline_speed	1945	unsigned int
1531	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)
1532	{	1959	{
1533	int pri;	1960	int pri;
1534		1961
1535	for (pri = NUMPRI; pri--; )	1962	for (pri = NUMPRI; pri--; )
1536	while (pendingcnt [pri])	1963	while (pendingcnt [pri])
1537	{	1964	{
1538	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1965	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1539		1966
1540	if (expect_true (p->w))
1541	{
1542	/*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 */
1543		1969
1544	p->w->pending = 0;	1970	p->w->pending = 0;
1545	EV_CB_INVOKE (p->w, p->events);	1971	EV_CB_INVOKE (p->w, p->events);
1546	}	1972	EV_FREQUENT_CHECK;
1547	}	1973	}
1548	}	1974	}
1549		1975
1550	#if EV_IDLE_ENABLE	1976	#if EV_IDLE_ENABLE
1551	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
1552	idle_reify (EV_P)	1980	idle_reify (EV_P)
1553	{	1981	{
1554	if (expect_false (idleall))	1982	if (expect_false (idleall))
1555	{	1983	{
1556	int pri;	1984	int pri;
…		…
1568	}	1996	}
1569	}	1997	}
1570	}	1998	}
1571	#endif	1999	#endif
1572		2000
1573	void inline_size	2001	/* make timers pending */
		2002	inline_size void
1574	timers_reify (EV_P)	2003	timers_reify (EV_P)
1575	{	2004	{
		2005	EV_FREQUENT_CHECK;
		2006
1576	while (timercnt && ev_at (timers [HEAP0]) <= mn_now)	2007	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1577	{	2008	{
1578	ev_timer *w = (ev_timer *)timers [HEAP0];	2009	do
1579
1580	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1581
1582	/* first reschedule or stop timer */
1583	if (w->repeat)
1584	{	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	{
		2018	ev_at (w) += w->repeat;
		2019	if (ev_at (w) < mn_now)
		2020	ev_at (w) = mn_now;
		2021
1585	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.));
1586		2023
1587	ev_at (w) += w->repeat;	2024	ANHE_at_cache (timers [HEAP0]);
1588	if (ev_at (w) < mn_now)
1589	ev_at (w) = mn_now;
1590
1591	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);
1592	}	2032	}
1593	else	2033	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1594	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1595		2034
1596	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	2035	feed_reverse_done (EV_A_ EV_TIMEOUT);
1597	}	2036	}
1598	}	2037	}
1599		2038
1600	#if EV_PERIODIC_ENABLE	2039	#if EV_PERIODIC_ENABLE
1601	void inline_size	2040	/* make periodics pending */
		2041	inline_size void
1602	periodics_reify (EV_P)	2042	periodics_reify (EV_P)
1603	{	2043	{
		2044	EV_FREQUENT_CHECK;
		2045
1604	while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now)	2046	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1605	{	2047	{
1606	ev_periodic *w = (ev_periodic *)periodics [HEAP0];	2048	int feed_count = 0;
1607		2049
1608	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	2050	do
1609
1610	/* first reschedule or stop timer */
1611	if (w->reschedule_cb)
1612	{	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	{
1613	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	2059	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		2060
1614	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));
		2062
		2063	ANHE_at_cache (periodics [HEAP0]);
1615	downheap (periodics, periodiccnt, 1);	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);
1616	}	2090	}
1617	else if (w->interval)	2091	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1618	{
1619	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1620	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1621	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1622	downheap (periodics, periodiccnt, HEAP0);
1623	}
1624	else
1625	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1626		2092
1627	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	2093	feed_reverse_done (EV_A_ EV_PERIODIC);
1628	}	2094	}
1629	}	2095	}
1630		2096
		2097	/* simply recalculate all periodics */
		2098	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1631	static void noinline	2099	static void noinline
1632	periodics_reschedule (EV_P)	2100	periodics_reschedule (EV_P)
1633	{	2101	{
1634	int i;	2102	int i;
1635		2103
1636	/* adjust periodics after time jump */	2104	/* adjust periodics after time jump */
1637	for (i = 1; i <= periodiccnt; ++i)	2105	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
1638	{	2106	{
1639	ev_periodic *w = (ev_periodic *)periodics [i];	2107	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1640		2108
1641	if (w->reschedule_cb)	2109	if (w->reschedule_cb)
1642	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2110	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1643	else if (w->interval)	2111	else if (w->interval)
1644	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2112	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2113
		2114	ANHE_at_cache (periodics [i]);
		2115	}
		2116
		2117	reheap (periodics, periodiccnt);
		2118	}
		2119	#endif
		2120
		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)
1645	}	2128	{
1646		2129	ANHE *he = timers + i + HEAP0;
1647	/* now rebuild the heap */	2130	ANHE_w (*he)->at += adjust;
1648	for (i = periodiccnt >> 1; --i; )	2131	ANHE_at_cache (*he);
1649	downheap (periodics, periodiccnt, i + HEAP0);	2132	}
1650	}	2133	}
1651	#endif
1652		2134
1653	void inline_speed	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
1654	time_update (EV_P_ ev_tstamp max_block)	2138	time_update (EV_P_ ev_tstamp max_block)
1655	{	2139	{
1656	int i;
1657
1658	#if EV_USE_MONOTONIC	2140	#if EV_USE_MONOTONIC
1659	if (expect_true (have_monotonic))	2141	if (expect_true (have_monotonic))
1660	{	2142	{
		2143	int i;
1661	ev_tstamp odiff = rtmn_diff;	2144	ev_tstamp odiff = rtmn_diff;
1662		2145
1663	mn_now = get_clock ();	2146	mn_now = get_clock ();
1664		2147
1665	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2148	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1691	ev_rt_now = ev_time ();	2174	ev_rt_now = ev_time ();
1692	mn_now = get_clock ();	2175	mn_now = get_clock ();
1693	now_floor = mn_now;	2176	now_floor = mn_now;
1694	}	2177	}
1695		2178
		2179	/* no timer adjustment, as the monotonic clock doesn't jump */
		2180	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1696	# if EV_PERIODIC_ENABLE	2181	# if EV_PERIODIC_ENABLE
1697	periodics_reschedule (EV_A);	2182	periodics_reschedule (EV_A);
1698	# endif	2183	# endif
1699	/* no timer adjustment, as the monotonic clock doesn't jump */
1700	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1701	}	2184	}
1702	else	2185	else
1703	#endif	2186	#endif
1704	{	2187	{
1705	ev_rt_now = ev_time ();	2188	ev_rt_now = ev_time ();
1706		2189
1707	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))
1708	{	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);
1709	#if EV_PERIODIC_ENABLE	2194	#if EV_PERIODIC_ENABLE
1710	periodics_reschedule (EV_A);	2195	periodics_reschedule (EV_A);
1711	#endif	2196	#endif
1712	/* adjust timers. this is easy, as the offset is the same for all of them */
1713	for (i = 1; i <= timercnt; ++i)
1714	ev_at (timers [i]) += ev_rt_now - mn_now;
1715	}	2197	}
1716		2198
1717	mn_now = ev_rt_now;	2199	mn_now = ev_rt_now;
1718	}	2200	}
1719	}	2201	}
1720		2202
1721	void	2203	void
1722	ev_ref (EV_P)
1723	{
1724	++activecnt;
1725	}
1726
1727	void
1728	ev_unref (EV_P)
1729	{
1730	--activecnt;
1731	}
1732
1733	static int loop_done;
1734
1735	void
1736	ev_loop (EV_P_ int flags)	2204	ev_loop (EV_P_ int flags)
1737	{	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
1738	loop_done = EVUNLOOP_CANCEL;	2212	loop_done = EVUNLOOP_CANCEL;
1739		2213
1740	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 */
1741		2215
1742	do	2216	do
1743	{	2217	{
		2218	#if EV_VERIFY >= 2
		2219	ev_loop_verify (EV_A);
		2220	#endif
		2221
1744	#ifndef _WIN32	2222	#ifndef _WIN32
1745	if (expect_false (curpid)) /* penalise the forking check even more */	2223	if (expect_false (curpid)) /* penalise the forking check even more */
1746	if (expect_false (getpid () != curpid))	2224	if (expect_false (getpid () != curpid))
1747	{	2225	{
1748	curpid = getpid ();	2226	curpid = getpid ();
…		…
1754	/* we might have forked, so queue fork handlers */	2232	/* we might have forked, so queue fork handlers */
1755	if (expect_false (postfork))	2233	if (expect_false (postfork))
1756	if (forkcnt)	2234	if (forkcnt)
1757	{	2235	{
1758	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2236	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1759	call_pending (EV_A);	2237	EV_INVOKE_PENDING;
1760	}	2238	}
1761	#endif	2239	#endif
1762		2240
1763	/* queue prepare watchers (and execute them) */	2241	/* queue prepare watchers (and execute them) */
1764	if (expect_false (preparecnt))	2242	if (expect_false (preparecnt))
1765	{	2243	{
1766	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1767	call_pending (EV_A);	2245	EV_INVOKE_PENDING;
1768	}	2246	}
1769		2247
1770	if (expect_false (!activecnt))	2248	if (expect_false (loop_done))
1771	break;	2249	break;
1772		2250
1773	/* we might have forked, so reify kernel state if necessary */	2251	/* we might have forked, so reify kernel state if necessary */
1774	if (expect_false (postfork))	2252	if (expect_false (postfork))
1775	loop_fork (EV_A);	2253	loop_fork (EV_A);
…		…
1782	ev_tstamp waittime = 0.;	2260	ev_tstamp waittime = 0.;
1783	ev_tstamp sleeptime = 0.;	2261	ev_tstamp sleeptime = 0.;
1784		2262
1785	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2263	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1786	{	2264	{
		2265	/* remember old timestamp for io_blocktime calculation */
		2266	ev_tstamp prev_mn_now = mn_now;
		2267
1787	/* update time to cancel out callback processing overhead */	2268	/* update time to cancel out callback processing overhead */
1788	time_update (EV_A_ 1e100);	2269	time_update (EV_A_ 1e100);
1789		2270
1790	waittime = MAX_BLOCKTIME;	2271	waittime = MAX_BLOCKTIME;
1791		2272
1792	if (timercnt)	2273	if (timercnt)
1793	{	2274	{
1794	ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge;	2275	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1795	if (waittime > to) waittime = to;	2276	if (waittime > to) waittime = to;
1796	}	2277	}
1797		2278
1798	#if EV_PERIODIC_ENABLE	2279	#if EV_PERIODIC_ENABLE
1799	if (periodiccnt)	2280	if (periodiccnt)
1800	{	2281	{
1801	ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2282	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1802	if (waittime > to) waittime = to;	2283	if (waittime > to) waittime = to;
1803	}	2284	}
1804	#endif	2285	#endif
1805		2286
		2287	/* don't let timeouts decrease the waittime below timeout_blocktime */
1806	if (expect_false (waittime < timeout_blocktime))	2288	if (expect_false (waittime < timeout_blocktime))
1807	waittime = timeout_blocktime;	2289	waittime = timeout_blocktime;
1808		2290
1809	sleeptime = waittime - backend_fudge;	2291	/* extra check because io_blocktime is commonly 0 */
1810
1811	if (expect_true (sleeptime > io_blocktime))	2292	if (expect_false (io_blocktime))
1812	sleeptime = io_blocktime;
1813
1814	if (sleeptime)
1815	{	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	{
1816	ev_sleep (sleeptime);	2301	ev_sleep (sleeptime);
1817	waittime -= sleeptime;	2302	waittime -= sleeptime;
		2303	}
1818	}	2304	}
1819	}	2305	}
1820		2306
		2307	#if EV_MINIMAL < 2
1821	++loop_count;	2308	++loop_count;
		2309	#endif
		2310	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1822	backend_poll (EV_A_ waittime);	2311	backend_poll (EV_A_ waittime);
		2312	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1823		2313
1824	/* update ev_rt_now, do magic */	2314	/* update ev_rt_now, do magic */
1825	time_update (EV_A_ waittime + sleeptime);	2315	time_update (EV_A_ waittime + sleeptime);
1826	}	2316	}
1827		2317
…		…
1838		2328
1839	/* queue check watchers, to be executed first */	2329	/* queue check watchers, to be executed first */
1840	if (expect_false (checkcnt))	2330	if (expect_false (checkcnt))
1841	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2331	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1842		2332
1843	call_pending (EV_A);	2333	EV_INVOKE_PENDING;
1844	}	2334	}
1845	while (expect_true (	2335	while (expect_true (
1846	activecnt	2336	activecnt
1847	&& !loop_done	2337	&& !loop_done
1848	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2338	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1849	));	2339	));
1850		2340
1851	if (loop_done == EVUNLOOP_ONE)	2341	if (loop_done == EVUNLOOP_ONE)
1852	loop_done = EVUNLOOP_CANCEL;	2342	loop_done = EVUNLOOP_CANCEL;
		2343
		2344	#if EV_MINIMAL < 2
		2345	--loop_depth;
		2346	#endif
1853	}	2347	}
1854		2348
1855	void	2349	void
1856	ev_unloop (EV_P_ int how)	2350	ev_unloop (EV_P_ int how)
1857	{	2351	{
1858	loop_done = how;	2352	loop_done = how;
1859	}	2353	}
1860		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
1861	/*****************************************************************************/	2392	/*****************************************************************************/
		2393	/* singly-linked list management, used when the expected list length is short */
1862		2394
1863	void inline_size	2395	inline_size void
1864	wlist_add (WL *head, WL elem)	2396	wlist_add (WL *head, WL elem)
1865	{	2397	{
1866	elem->next = *head;	2398	elem->next = *head;
1867	*head = elem;	2399	*head = elem;
1868	}	2400	}
1869		2401
1870	void inline_size	2402	inline_size void
1871	wlist_del (WL *head, WL elem)	2403	wlist_del (WL *head, WL elem)
1872	{	2404	{
1873	while (*head)	2405	while (*head)
1874	{	2406	{
1875	if (*head == elem)	2407	if (expect_true (*head == elem))
1876	{	2408	{
1877	*head = elem->next;	2409	*head = elem->next;
1878	return;	2410	break;
1879	}	2411	}
1880		2412
1881	head = &(*head)->next;	2413	head = &(*head)->next;
1882	}	2414	}
1883	}	2415	}
1884		2416
1885	void inline_speed	2417	/* internal, faster, version of ev_clear_pending */
		2418	inline_speed void
1886	clear_pending (EV_P_ W w)	2419	clear_pending (EV_P_ W w)
1887	{	2420	{
1888	if (w->pending)	2421	if (w->pending)
1889	{	2422	{
1890	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2423	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1891	w->pending = 0;	2424	w->pending = 0;
1892	}	2425	}
1893	}	2426	}
1894		2427
1895	int	2428	int
…		…
1899	int pending = w_->pending;	2432	int pending = w_->pending;
1900		2433
1901	if (expect_true (pending))	2434	if (expect_true (pending))
1902	{	2435	{
1903	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2436	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2437	p->w = (W)&pending_w;
1904	w_->pending = 0;	2438	w_->pending = 0;
1905	p->w = 0;
1906	return p->events;	2439	return p->events;
1907	}	2440	}
1908	else	2441	else
1909	return 0;	2442	return 0;
1910	}	2443	}
1911		2444
1912	void inline_size	2445	inline_size void
1913	pri_adjust (EV_P_ W w)	2446	pri_adjust (EV_P_ W w)
1914	{	2447	{
1915	int pri = w->priority;	2448	int pri = ev_priority (w);
1916	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2449	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1917	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2450	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1918	w->priority = pri;	2451	ev_set_priority (w, pri);
1919	}	2452	}
1920		2453
1921	void inline_speed	2454	inline_speed void
1922	ev_start (EV_P_ W w, int active)	2455	ev_start (EV_P_ W w, int active)
1923	{	2456	{
1924	pri_adjust (EV_A_ w);	2457	pri_adjust (EV_A_ w);
1925	w->active = active;	2458	w->active = active;
1926	ev_ref (EV_A);	2459	ev_ref (EV_A);
1927	}	2460	}
1928		2461
1929	void inline_size	2462	inline_size void
1930	ev_stop (EV_P_ W w)	2463	ev_stop (EV_P_ W w)
1931	{	2464	{
1932	ev_unref (EV_A);	2465	ev_unref (EV_A);
1933	w->active = 0;	2466	w->active = 0;
1934	}	2467	}
…		…
1941	int fd = w->fd;	2474	int fd = w->fd;
1942		2475
1943	if (expect_false (ev_is_active (w)))	2476	if (expect_false (ev_is_active (w)))
1944	return;	2477	return;
1945		2478
1946	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))));
		2481
		2482	EV_FREQUENT_CHECK;
1947		2483
1948	ev_start (EV_A_ (W)w, 1);	2484	ev_start (EV_A_ (W)w, 1);
1949	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2485	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1950	wlist_add (&anfds[fd].head, (WL)w);	2486	wlist_add (&anfds[fd].head, (WL)w);
1951		2487
1952	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2488	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1953	w->events &= ~EV_IOFDSET;	2489	w->events &= ~EV__IOFDSET;
		2490
		2491	EV_FREQUENT_CHECK;
1954	}	2492	}
1955		2493
1956	void noinline	2494	void noinline
1957	ev_io_stop (EV_P_ ev_io *w)	2495	ev_io_stop (EV_P_ ev_io *w)
1958	{	2496	{
1959	clear_pending (EV_A_ (W)w);	2497	clear_pending (EV_A_ (W)w);
1960	if (expect_false (!ev_is_active (w)))	2498	if (expect_false (!ev_is_active (w)))
1961	return;	2499	return;
1962		2500
1963	assert (("ev_io_start 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));
		2502
		2503	EV_FREQUENT_CHECK;
1964		2504
1965	wlist_del (&anfds[w->fd].head, (WL)w);	2505	wlist_del (&anfds[w->fd].head, (WL)w);
1966	ev_stop (EV_A_ (W)w);	2506	ev_stop (EV_A_ (W)w);
1967		2507
1968	fd_change (EV_A_ w->fd, 1);	2508	fd_change (EV_A_ w->fd, 1);
		2509
		2510	EV_FREQUENT_CHECK;
1969	}	2511	}
1970		2512
1971	void noinline	2513	void noinline
1972	ev_timer_start (EV_P_ ev_timer *w)	2514	ev_timer_start (EV_P_ ev_timer *w)
1973	{	2515	{
1974	if (expect_false (ev_is_active (w)))	2516	if (expect_false (ev_is_active (w)))
1975	return;	2517	return;
1976		2518
1977	ev_at (w) += mn_now;	2519	ev_at (w) += mn_now;
1978		2520
1979	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.));
1980		2522
		2523	EV_FREQUENT_CHECK;
		2524
		2525	++timercnt;
1981	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2526	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1982	array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2);	2527	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1983	timers [ev_active (w)] = (WT)w;	2528	ANHE_w (timers [ev_active (w)]) = (WT)w;
		2529	ANHE_at_cache (timers [ev_active (w)]);
1984	upheap (timers, ev_active (w));	2530	upheap (timers, ev_active (w));
1985		2531
		2532	EV_FREQUENT_CHECK;
		2533
1986	/*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/	2534	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1987	}	2535	}
1988		2536
1989	void noinline	2537	void noinline
1990	ev_timer_stop (EV_P_ ev_timer *w)	2538	ev_timer_stop (EV_P_ ev_timer *w)
1991	{	2539	{
1992	clear_pending (EV_A_ (W)w);	2540	clear_pending (EV_A_ (W)w);
1993	if (expect_false (!ev_is_active (w)))	2541	if (expect_false (!ev_is_active (w)))
1994	return;	2542	return;
1995		2543
		2544	EV_FREQUENT_CHECK;
		2545
1996	{	2546	{
1997	int active = ev_active (w);	2547	int active = ev_active (w);
1998		2548
1999	assert (("internal timer heap corruption", timers [active] == (WT)w));	2549	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2000		2550
		2551	--timercnt;
		2552
2001	if (expect_true (active < timercnt + HEAP0 - 1))	2553	if (expect_true (active < timercnt + HEAP0))
2002	{	2554	{
2003	timers [active] = timers [timercnt + HEAP0 - 1];	2555	timers [active] = timers [timercnt + HEAP0];
2004	adjustheap (timers, timercnt, active);	2556	adjustheap (timers, timercnt, active);
2005	}	2557	}
2006
2007	--timercnt;
2008	}	2558	}
		2559
		2560	EV_FREQUENT_CHECK;
2009		2561
2010	ev_at (w) -= mn_now;	2562	ev_at (w) -= mn_now;
2011		2563
2012	ev_stop (EV_A_ (W)w);	2564	ev_stop (EV_A_ (W)w);
2013	}	2565	}
2014		2566
2015	void noinline	2567	void noinline
2016	ev_timer_again (EV_P_ ev_timer *w)	2568	ev_timer_again (EV_P_ ev_timer *w)
2017	{	2569	{
		2570	EV_FREQUENT_CHECK;
		2571
2018	if (ev_is_active (w))	2572	if (ev_is_active (w))
2019	{	2573	{
2020	if (w->repeat)	2574	if (w->repeat)
2021	{	2575	{
2022	ev_at (w) = mn_now + w->repeat;	2576	ev_at (w) = mn_now + w->repeat;
		2577	ANHE_at_cache (timers [ev_active (w)]);
2023	adjustheap (timers, timercnt, ev_active (w));	2578	adjustheap (timers, timercnt, ev_active (w));
2024	}	2579	}
2025	else	2580	else
2026	ev_timer_stop (EV_A_ w);	2581	ev_timer_stop (EV_A_ w);
2027	}	2582	}
2028	else if (w->repeat)	2583	else if (w->repeat)
2029	{	2584	{
2030	ev_at (w) = w->repeat;	2585	ev_at (w) = w->repeat;
2031	ev_timer_start (EV_A_ w);	2586	ev_timer_start (EV_A_ w);
2032	}	2587	}
		2588
		2589	EV_FREQUENT_CHECK;
		2590	}
		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.);
2033	}	2596	}
2034		2597
2035	#if EV_PERIODIC_ENABLE	2598	#if EV_PERIODIC_ENABLE
2036	void noinline	2599	void noinline
2037	ev_periodic_start (EV_P_ ev_periodic *w)	2600	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2041		2604
2042	if (w->reschedule_cb)	2605	if (w->reschedule_cb)
2043	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2606	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2044	else if (w->interval)	2607	else if (w->interval)
2045	{	2608	{
2046	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.));
2047	/* 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 */
2048	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;
2049	}	2612	}
2050	else	2613	else
2051	ev_at (w) = w->offset;	2614	ev_at (w) = w->offset;
2052		2615
		2616	EV_FREQUENT_CHECK;
		2617
		2618	++periodiccnt;
2053	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2619	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2054	array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2);	2620	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2055	periodics [ev_active (w)] = (WT)w;	2621	ANHE_w (periodics [ev_active (w)]) = (WT)w;
		2622	ANHE_at_cache (periodics [ev_active (w)]);
2056	upheap (periodics, ev_active (w));	2623	upheap (periodics, ev_active (w));
2057		2624
		2625	EV_FREQUENT_CHECK;
		2626
2058	/*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/	2627	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2059	}	2628	}
2060		2629
2061	void noinline	2630	void noinline
2062	ev_periodic_stop (EV_P_ ev_periodic *w)	2631	ev_periodic_stop (EV_P_ ev_periodic *w)
2063	{	2632	{
2064	clear_pending (EV_A_ (W)w);	2633	clear_pending (EV_A_ (W)w);
2065	if (expect_false (!ev_is_active (w)))	2634	if (expect_false (!ev_is_active (w)))
2066	return;	2635	return;
2067		2636
		2637	EV_FREQUENT_CHECK;
		2638
2068	{	2639	{
2069	int active = ev_active (w);	2640	int active = ev_active (w);
2070		2641
2071	assert (("internal periodic heap corruption", periodics [active] == (WT)w));	2642	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2072		2643
		2644	--periodiccnt;
		2645
2073	if (expect_true (active < periodiccnt + HEAP0 - 1))	2646	if (expect_true (active < periodiccnt + HEAP0))
2074	{	2647	{
2075	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2648	periodics [active] = periodics [periodiccnt + HEAP0];
2076	adjustheap (periodics, periodiccnt, active);	2649	adjustheap (periodics, periodiccnt, active);
2077	}	2650	}
2078
2079	--periodiccnt;
2080	}	2651	}
		2652
		2653	EV_FREQUENT_CHECK;
2081		2654
2082	ev_stop (EV_A_ (W)w);	2655	ev_stop (EV_A_ (W)w);
2083	}	2656	}
2084		2657
2085	void noinline	2658	void noinline
…		…
2096	#endif	2669	#endif
2097		2670
2098	void noinline	2671	void noinline
2099	ev_signal_start (EV_P_ ev_signal *w)	2672	ev_signal_start (EV_P_ ev_signal *w)
2100	{	2673	{
2101	#if EV_MULTIPLICITY
2102	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2103	#endif
2104	if (expect_false (ev_is_active (w)))	2674	if (expect_false (ev_is_active (w)))
2105	return;	2675	return;
2106		2676
2107	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));
2108		2678
2109	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));
2110		2682
		2683	signals [w->signum - 1].loop = EV_A;
		2684	#endif
		2685
		2686	EV_FREQUENT_CHECK;
		2687
		2688	#if EV_USE_SIGNALFD
		2689	if (sigfd == -2)
2111	{	2690	{
2112	#ifndef _WIN32	2691	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2113	sigset_t full, prev;	2692	if (sigfd < 0 && errno == EINVAL)
2114	sigfillset (&full);	2693	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2115	sigprocmask (SIG_SETMASK, &full, &prev);
2116	#endif
2117		2694
2118	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2695	if (sigfd >= 0)
		2696	{
		2697	fd_intern (sigfd); /* doing it twice will not hurt */
2119		2698
2120	#ifndef _WIN32	2699	sigemptyset (&sigfd_set);
2121	sigprocmask (SIG_SETMASK, &prev, 0);	2700
2122	#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	}
2123	}	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
2124		2717
2125	ev_start (EV_A_ (W)w, 1);	2718	ev_start (EV_A_ (W)w, 1);
2126	wlist_add (&signals [w->signum - 1].head, (WL)w);	2719	wlist_add (&signals [w->signum - 1].head, (WL)w);
2127		2720
2128	if (!((WL)w)->next)	2721	if (!((WL)w)->next)
		2722	# if EV_USE_SIGNALFD
		2723	if (sigfd < 0) /*TODO*/
		2724	# endif
2129	{	2725	{
2130	#if _WIN32	2726	# if _WIN32
2131	signal (w->signum, ev_sighandler);	2727	signal (w->signum, ev_sighandler);
2132	#else	2728	# else
2133	struct sigaction sa;	2729	struct sigaction sa;
		2730
		2731	evpipe_init (EV_A);
		2732
2134	sa.sa_handler = ev_sighandler;	2733	sa.sa_handler = ev_sighandler;
2135	sigfillset (&sa.sa_mask);	2734	sigfillset (&sa.sa_mask);
2136	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 */
2137	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);
2138	#endif	2741	#endif
2139	}	2742	}
		2743
		2744	EV_FREQUENT_CHECK;
2140	}	2745	}
2141		2746
2142	void noinline	2747	void noinline
2143	ev_signal_stop (EV_P_ ev_signal *w)	2748	ev_signal_stop (EV_P_ ev_signal *w)
2144	{	2749	{
2145	clear_pending (EV_A_ (W)w);	2750	clear_pending (EV_A_ (W)w);
2146	if (expect_false (!ev_is_active (w)))	2751	if (expect_false (!ev_is_active (w)))
2147	return;	2752	return;
2148		2753
		2754	EV_FREQUENT_CHECK;
		2755
2149	wlist_del (&signals [w->signum - 1].head, (WL)w);	2756	wlist_del (&signals [w->signum - 1].head, (WL)w);
2150	ev_stop (EV_A_ (W)w);	2757	ev_stop (EV_A_ (W)w);
2151		2758
2152	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
2153	signal (w->signum, SIG_DFL);	2775	signal (w->signum, SIG_DFL);
		2776	}
		2777
		2778	EV_FREQUENT_CHECK;
2154	}	2779	}
2155		2780
2156	void	2781	void
2157	ev_child_start (EV_P_ ev_child *w)	2782	ev_child_start (EV_P_ ev_child *w)
2158	{	2783	{
2159	#if EV_MULTIPLICITY	2784	#if EV_MULTIPLICITY
2160	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));
2161	#endif	2786	#endif
2162	if (expect_false (ev_is_active (w)))	2787	if (expect_false (ev_is_active (w)))
2163	return;	2788	return;
2164		2789
		2790	EV_FREQUENT_CHECK;
		2791
2165	ev_start (EV_A_ (W)w, 1);	2792	ev_start (EV_A_ (W)w, 1);
2166	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2793	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2794
		2795	EV_FREQUENT_CHECK;
2167	}	2796	}
2168		2797
2169	void	2798	void
2170	ev_child_stop (EV_P_ ev_child *w)	2799	ev_child_stop (EV_P_ ev_child *w)
2171	{	2800	{
2172	clear_pending (EV_A_ (W)w);	2801	clear_pending (EV_A_ (W)w);
2173	if (expect_false (!ev_is_active (w)))	2802	if (expect_false (!ev_is_active (w)))
2174	return;	2803	return;
2175		2804
		2805	EV_FREQUENT_CHECK;
		2806
2176	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2807	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2177	ev_stop (EV_A_ (W)w);	2808	ev_stop (EV_A_ (W)w);
		2809
		2810	EV_FREQUENT_CHECK;
2178	}	2811	}
2179		2812
2180	#if EV_STAT_ENABLE	2813	#if EV_STAT_ENABLE
2181		2814
2182	# ifdef _WIN32	2815	# ifdef _WIN32
2183	# undef lstat	2816	# undef lstat
2184	# define lstat(a,b) _stati64 (a,b)	2817	# define lstat(a,b) _stati64 (a,b)
2185	# endif	2818	# endif
2186		2819
2187	#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 */
2188	#define MIN_STAT_INTERVAL 0.1074891	2822	#define MIN_STAT_INTERVAL 0.1074891
2189		2823
2190	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);
2191		2825
2192	#if EV_USE_INOTIFY	2826	#if EV_USE_INOTIFY
2193	# define EV_INOTIFY_BUFSIZE 8192	2827	# define EV_INOTIFY_BUFSIZE 8192
…		…
2197	{	2831	{
2198	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);
2199		2833
2200	if (w->wd < 0)	2834	if (w->wd < 0)
2201	{	2835	{
		2836	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2202	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 */
2203		2838
2204	/* monitor some parent directory for speedup hints */	2839	/* monitor some parent directory for speedup hints */
2205	/* note that exceeding the hardcoded limit is not a correctness issue, */	2840	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2206	/* but an efficiency issue only */	2841	/* but an efficiency issue only */
2207	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2842	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2208	{	2843	{
2209	char path [4096];	2844	char path [4096];
2210	strcpy (path, w->path);	2845	strcpy (path, w->path);
…		…
2214	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2849	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2215	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2850	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2216		2851
2217	char *pend = strrchr (path, '/');	2852	char *pend = strrchr (path, '/');
2218		2853
2219	if (!pend)	2854	if (!pend || pend == path)
2220	break; /* whoops, no '/', complain to your admin */	2855	break;
2221		2856
2222	*pend = 0;	2857	*pend = 0;
2223	w->wd = inotify_add_watch (fs_fd, path, mask);	2858	w->wd = inotify_add_watch (fs_fd, path, mask);
2224	}	2859	}
2225	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2860	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2226	}	2861	}
2227	}	2862	}
2228	else
2229	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2230		2863
2231	if (w->wd >= 0)	2864	if (w->wd >= 0)
		2865	{
2232	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	}
2233	}	2885	}
2234		2886
2235	static void noinline	2887	static void noinline
2236	infy_del (EV_P_ ev_stat *w)	2888	infy_del (EV_P_ ev_stat *w)
2237	{	2889	{
…		…
2251		2903
2252	static void noinline	2904	static void noinline
2253	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)
2254	{	2906	{
2255	if (slot < 0)	2907	if (slot < 0)
2256	/* overflow, need to check for all hahs slots */	2908	/* overflow, need to check for all hash slots */
2257	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2909	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2258	infy_wd (EV_A_ slot, wd, ev);	2910	infy_wd (EV_A_ slot, wd, ev);
2259	else	2911	else
2260	{	2912	{
2261	WL w_;	2913	WL w_;
…		…
2267		2919
2268	if (w->wd == wd || wd == -1)	2920	if (w->wd == wd || wd == -1)
2269	{	2921	{
2270	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2922	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2271	{	2923	{
		2924	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2272	w->wd = -1;	2925	w->wd = -1;
2273	infy_add (EV_A_ w); /* re-add, no matter what */	2926	infy_add (EV_A_ w); /* re-add, no matter what */
2274	}	2927	}
2275		2928
2276	stat_timer_cb (EV_A_ &w->timer, 0);	2929	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2289		2942
2290	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)
2291	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2944	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2292	}	2945	}
2293		2946
2294	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
2295	infy_init (EV_P)	2971	infy_init (EV_P)
2296	{	2972	{
2297	if (fs_fd != -2)	2973	if (fs_fd != -2)
2298	return;	2974	return;
		2975
		2976	fs_fd = -1;
		2977
		2978	check_2625 (EV_A);
2299		2979
2300	fs_fd = inotify_init ();	2980	fs_fd = inotify_init ();
2301		2981
2302	if (fs_fd >= 0)	2982	if (fs_fd >= 0)
2303	{	2983	{
…		…
2305	ev_set_priority (&fs_w, EV_MAXPRI);	2985	ev_set_priority (&fs_w, EV_MAXPRI);
2306	ev_io_start (EV_A_ &fs_w);	2986	ev_io_start (EV_A_ &fs_w);
2307	}	2987	}
2308	}	2988	}
2309		2989
2310	void inline_size	2990	inline_size void
2311	infy_fork (EV_P)	2991	infy_fork (EV_P)
2312	{	2992	{
2313	int slot;	2993	int slot;
2314		2994
2315	if (fs_fd < 0)	2995	if (fs_fd < 0)
…		…
2331	w->wd = -1;	3011	w->wd = -1;
2332		3012
2333	if (fs_fd >= 0)	3013	if (fs_fd >= 0)
2334	infy_add (EV_A_ w); /* re-add, no matter what */	3014	infy_add (EV_A_ w); /* re-add, no matter what */
2335	else	3015	else
2336	ev_timer_start (EV_A_ &w->timer);	3016	ev_timer_again (EV_A_ &w->timer);
2337	}	3017	}
2338
2339	}	3018	}
2340	}	3019	}
2341		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)
2342	#endif	3027	#endif
2343		3028
2344	void	3029	void
2345	ev_stat_stat (EV_P_ ev_stat *w)	3030	ev_stat_stat (EV_P_ ev_stat *w)
2346	{	3031	{
…		…
2373	|| w->prev.st_atime != w->attr.st_atime	3058	|| w->prev.st_atime != w->attr.st_atime
2374	|| w->prev.st_mtime != w->attr.st_mtime	3059	|| w->prev.st_mtime != w->attr.st_mtime
2375	|| w->prev.st_ctime != w->attr.st_ctime	3060	|| w->prev.st_ctime != w->attr.st_ctime
2376	) {	3061	) {
2377	#if EV_USE_INOTIFY	3062	#if EV_USE_INOTIFY
		3063	if (fs_fd >= 0)
		3064	{
2378	infy_del (EV_A_ w);	3065	infy_del (EV_A_ w);
2379	infy_add (EV_A_ w);	3066	infy_add (EV_A_ w);
2380	ev_stat_stat (EV_A_ w); /* avoid race... */	3067	ev_stat_stat (EV_A_ w); /* avoid race... */
		3068	}
2381	#endif	3069	#endif
2382		3070
2383	ev_feed_event (EV_A_ w, EV_STAT);	3071	ev_feed_event (EV_A_ w, EV_STAT);
2384	}	3072	}
2385	}	3073	}
…		…
2388	ev_stat_start (EV_P_ ev_stat *w)	3076	ev_stat_start (EV_P_ ev_stat *w)
2389	{	3077	{
2390	if (expect_false (ev_is_active (w)))	3078	if (expect_false (ev_is_active (w)))
2391	return;	3079	return;
2392		3080
2393	/* since we use memcmp, we need to clear any padding data etc. */
2394	memset (&w->prev, 0, sizeof (ev_statdata));
2395	memset (&w->attr, 0, sizeof (ev_statdata));
2396
2397	ev_stat_stat (EV_A_ w);	3081	ev_stat_stat (EV_A_ w);
2398		3082
		3083	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2399	if (w->interval < MIN_STAT_INTERVAL)	3084	w->interval = MIN_STAT_INTERVAL;
2400	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2401		3085
2402	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);
2403	ev_set_priority (&w->timer, ev_priority (w));	3087	ev_set_priority (&w->timer, ev_priority (w));
2404		3088
2405	#if EV_USE_INOTIFY	3089	#if EV_USE_INOTIFY
2406	infy_init (EV_A);	3090	infy_init (EV_A);
2407		3091
2408	if (fs_fd >= 0)	3092	if (fs_fd >= 0)
2409	infy_add (EV_A_ w);	3093	infy_add (EV_A_ w);
2410	else	3094	else
2411	#endif	3095	#endif
2412	ev_timer_start (EV_A_ &w->timer);	3096	ev_timer_again (EV_A_ &w->timer);
2413		3097
2414	ev_start (EV_A_ (W)w, 1);	3098	ev_start (EV_A_ (W)w, 1);
		3099
		3100	EV_FREQUENT_CHECK;
2415	}	3101	}
2416		3102
2417	void	3103	void
2418	ev_stat_stop (EV_P_ ev_stat *w)	3104	ev_stat_stop (EV_P_ ev_stat *w)
2419	{	3105	{
2420	clear_pending (EV_A_ (W)w);	3106	clear_pending (EV_A_ (W)w);
2421	if (expect_false (!ev_is_active (w)))	3107	if (expect_false (!ev_is_active (w)))
2422	return;	3108	return;
2423		3109
		3110	EV_FREQUENT_CHECK;
		3111
2424	#if EV_USE_INOTIFY	3112	#if EV_USE_INOTIFY
2425	infy_del (EV_A_ w);	3113	infy_del (EV_A_ w);
2426	#endif	3114	#endif
2427	ev_timer_stop (EV_A_ &w->timer);	3115	ev_timer_stop (EV_A_ &w->timer);
2428		3116
2429	ev_stop (EV_A_ (W)w);	3117	ev_stop (EV_A_ (W)w);
		3118
		3119	EV_FREQUENT_CHECK;
2430	}	3120	}
2431	#endif	3121	#endif
2432		3122
2433	#if EV_IDLE_ENABLE	3123	#if EV_IDLE_ENABLE
2434	void	3124	void
…		…
2436	{	3126	{
2437	if (expect_false (ev_is_active (w)))	3127	if (expect_false (ev_is_active (w)))
2438	return;	3128	return;
2439		3129
2440	pri_adjust (EV_A_ (W)w);	3130	pri_adjust (EV_A_ (W)w);
		3131
		3132	EV_FREQUENT_CHECK;
2441		3133
2442	{	3134	{
2443	int active = ++idlecnt [ABSPRI (w)];	3135	int active = ++idlecnt [ABSPRI (w)];
2444		3136
2445	++idleall;	3137	++idleall;
2446	ev_start (EV_A_ (W)w, active);	3138	ev_start (EV_A_ (W)w, active);
2447		3139
2448	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	3140	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2449	idles [ABSPRI (w)][active - 1] = w;	3141	idles [ABSPRI (w)][active - 1] = w;
2450	}	3142	}
		3143
		3144	EV_FREQUENT_CHECK;
2451	}	3145	}
2452		3146
2453	void	3147	void
2454	ev_idle_stop (EV_P_ ev_idle *w)	3148	ev_idle_stop (EV_P_ ev_idle *w)
2455	{	3149	{
2456	clear_pending (EV_A_ (W)w);	3150	clear_pending (EV_A_ (W)w);
2457	if (expect_false (!ev_is_active (w)))	3151	if (expect_false (!ev_is_active (w)))
2458	return;	3152	return;
2459		3153
		3154	EV_FREQUENT_CHECK;
		3155
2460	{	3156	{
2461	int active = ev_active (w);	3157	int active = ev_active (w);
2462		3158
2463	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	3159	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2464	ev_active (idles [ABSPRI (w)][active - 1]) = active;	3160	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2465		3161
2466	ev_stop (EV_A_ (W)w);	3162	ev_stop (EV_A_ (W)w);
2467	--idleall;	3163	--idleall;
2468	}	3164	}
		3165
		3166	EV_FREQUENT_CHECK;
2469	}	3167	}
2470	#endif	3168	#endif
2471		3169
2472	void	3170	void
2473	ev_prepare_start (EV_P_ ev_prepare *w)	3171	ev_prepare_start (EV_P_ ev_prepare *w)
2474	{	3172	{
2475	if (expect_false (ev_is_active (w)))	3173	if (expect_false (ev_is_active (w)))
2476	return;	3174	return;
		3175
		3176	EV_FREQUENT_CHECK;
2477		3177
2478	ev_start (EV_A_ (W)w, ++preparecnt);	3178	ev_start (EV_A_ (W)w, ++preparecnt);
2479	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	3179	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2480	prepares [preparecnt - 1] = w;	3180	prepares [preparecnt - 1] = w;
		3181
		3182	EV_FREQUENT_CHECK;
2481	}	3183	}
2482		3184
2483	void	3185	void
2484	ev_prepare_stop (EV_P_ ev_prepare *w)	3186	ev_prepare_stop (EV_P_ ev_prepare *w)
2485	{	3187	{
2486	clear_pending (EV_A_ (W)w);	3188	clear_pending (EV_A_ (W)w);
2487	if (expect_false (!ev_is_active (w)))	3189	if (expect_false (!ev_is_active (w)))
2488	return;	3190	return;
2489		3191
		3192	EV_FREQUENT_CHECK;
		3193
2490	{	3194	{
2491	int active = ev_active (w);	3195	int active = ev_active (w);
2492		3196
2493	prepares [active - 1] = prepares [--preparecnt];	3197	prepares [active - 1] = prepares [--preparecnt];
2494	ev_active (prepares [active - 1]) = active;	3198	ev_active (prepares [active - 1]) = active;
2495	}	3199	}
2496		3200
2497	ev_stop (EV_A_ (W)w);	3201	ev_stop (EV_A_ (W)w);
		3202
		3203	EV_FREQUENT_CHECK;
2498	}	3204	}
2499		3205
2500	void	3206	void
2501	ev_check_start (EV_P_ ev_check *w)	3207	ev_check_start (EV_P_ ev_check *w)
2502	{	3208	{
2503	if (expect_false (ev_is_active (w)))	3209	if (expect_false (ev_is_active (w)))
2504	return;	3210	return;
		3211
		3212	EV_FREQUENT_CHECK;
2505		3213
2506	ev_start (EV_A_ (W)w, ++checkcnt);	3214	ev_start (EV_A_ (W)w, ++checkcnt);
2507	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	3215	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2508	checks [checkcnt - 1] = w;	3216	checks [checkcnt - 1] = w;
		3217
		3218	EV_FREQUENT_CHECK;
2509	}	3219	}
2510		3220
2511	void	3221	void
2512	ev_check_stop (EV_P_ ev_check *w)	3222	ev_check_stop (EV_P_ ev_check *w)
2513	{	3223	{
2514	clear_pending (EV_A_ (W)w);	3224	clear_pending (EV_A_ (W)w);
2515	if (expect_false (!ev_is_active (w)))	3225	if (expect_false (!ev_is_active (w)))
2516	return;	3226	return;
2517		3227
		3228	EV_FREQUENT_CHECK;
		3229
2518	{	3230	{
2519	int active = ev_active (w);	3231	int active = ev_active (w);
2520		3232
2521	checks [active - 1] = checks [--checkcnt];	3233	checks [active - 1] = checks [--checkcnt];
2522	ev_active (checks [active - 1]) = active;	3234	ev_active (checks [active - 1]) = active;
2523	}	3235	}
2524		3236
2525	ev_stop (EV_A_ (W)w);	3237	ev_stop (EV_A_ (W)w);
		3238
		3239	EV_FREQUENT_CHECK;
2526	}	3240	}
2527		3241
2528	#if EV_EMBED_ENABLE	3242	#if EV_EMBED_ENABLE
2529	void noinline	3243	void noinline
2530	ev_embed_sweep (EV_P_ ev_embed *w)	3244	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2547	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3261	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2548	{	3262	{
2549	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3263	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2550		3264
2551	{	3265	{
2552	struct ev_loop *loop = w->other;	3266	EV_P = w->other;
2553		3267
2554	while (fdchangecnt)	3268	while (fdchangecnt)
2555	{	3269	{
2556	fd_reify (EV_A);	3270	fd_reify (EV_A);
2557	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3271	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2558	}	3272	}
2559	}	3273	}
2560	}	3274	}
2561		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
2562	#if 0	3293	#if 0
2563	static void	3294	static void
2564	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3295	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2565	{	3296	{
2566	ev_idle_stop (EV_A_ idle);	3297	ev_idle_stop (EV_A_ idle);
…		…
2572	{	3303	{
2573	if (expect_false (ev_is_active (w)))	3304	if (expect_false (ev_is_active (w)))
2574	return;	3305	return;
2575		3306
2576	{	3307	{
2577	struct ev_loop *loop = w->other;	3308	EV_P = w->other;
2578	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 ()));
2579	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);
2580	}	3311	}
		3312
		3313	EV_FREQUENT_CHECK;
2581		3314
2582	ev_set_priority (&w->io, ev_priority (w));	3315	ev_set_priority (&w->io, ev_priority (w));
2583	ev_io_start (EV_A_ &w->io);	3316	ev_io_start (EV_A_ &w->io);
2584		3317
2585	ev_prepare_init (&w->prepare, embed_prepare_cb);	3318	ev_prepare_init (&w->prepare, embed_prepare_cb);
2586	ev_set_priority (&w->prepare, EV_MINPRI);	3319	ev_set_priority (&w->prepare, EV_MINPRI);
2587	ev_prepare_start (EV_A_ &w->prepare);	3320	ev_prepare_start (EV_A_ &w->prepare);
2588		3321
		3322	ev_fork_init (&w->fork, embed_fork_cb);
		3323	ev_fork_start (EV_A_ &w->fork);
		3324
2589	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3325	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2590		3326
2591	ev_start (EV_A_ (W)w, 1);	3327	ev_start (EV_A_ (W)w, 1);
		3328
		3329	EV_FREQUENT_CHECK;
2592	}	3330	}
2593		3331
2594	void	3332	void
2595	ev_embed_stop (EV_P_ ev_embed *w)	3333	ev_embed_stop (EV_P_ ev_embed *w)
2596	{	3334	{
2597	clear_pending (EV_A_ (W)w);	3335	clear_pending (EV_A_ (W)w);
2598	if (expect_false (!ev_is_active (w)))	3336	if (expect_false (!ev_is_active (w)))
2599	return;	3337	return;
2600		3338
		3339	EV_FREQUENT_CHECK;
		3340
2601	ev_io_stop (EV_A_ &w->io);	3341	ev_io_stop (EV_A_ &w->io);
2602	ev_prepare_stop (EV_A_ &w->prepare);	3342	ev_prepare_stop (EV_A_ &w->prepare);
		3343	ev_fork_stop (EV_A_ &w->fork);
2603		3344
2604	ev_stop (EV_A_ (W)w);	3345	EV_FREQUENT_CHECK;
2605	}	3346	}
2606	#endif	3347	#endif
2607		3348
2608	#if EV_FORK_ENABLE	3349	#if EV_FORK_ENABLE
2609	void	3350	void
2610	ev_fork_start (EV_P_ ev_fork *w)	3351	ev_fork_start (EV_P_ ev_fork *w)
2611	{	3352	{
2612	if (expect_false (ev_is_active (w)))	3353	if (expect_false (ev_is_active (w)))
2613	return;	3354	return;
		3355
		3356	EV_FREQUENT_CHECK;
2614		3357
2615	ev_start (EV_A_ (W)w, ++forkcnt);	3358	ev_start (EV_A_ (W)w, ++forkcnt);
2616	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	3359	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2617	forks [forkcnt - 1] = w;	3360	forks [forkcnt - 1] = w;
		3361
		3362	EV_FREQUENT_CHECK;
2618	}	3363	}
2619		3364
2620	void	3365	void
2621	ev_fork_stop (EV_P_ ev_fork *w)	3366	ev_fork_stop (EV_P_ ev_fork *w)
2622	{	3367	{
2623	clear_pending (EV_A_ (W)w);	3368	clear_pending (EV_A_ (W)w);
2624	if (expect_false (!ev_is_active (w)))	3369	if (expect_false (!ev_is_active (w)))
2625	return;	3370	return;
2626		3371
		3372	EV_FREQUENT_CHECK;
		3373
2627	{	3374	{
2628	int active = ev_active (w);	3375	int active = ev_active (w);
2629		3376
2630	forks [active - 1] = forks [--forkcnt];	3377	forks [active - 1] = forks [--forkcnt];
2631	ev_active (forks [active - 1]) = active;	3378	ev_active (forks [active - 1]) = active;
2632	}	3379	}
2633		3380
2634	ev_stop (EV_A_ (W)w);	3381	ev_stop (EV_A_ (W)w);
		3382
		3383	EV_FREQUENT_CHECK;
2635	}	3384	}
2636	#endif	3385	#endif
2637		3386
2638	#if EV_ASYNC_ENABLE	3387	#if EV_ASYNC_ENABLE
2639	void	3388	void
…		…
2641	{	3390	{
2642	if (expect_false (ev_is_active (w)))	3391	if (expect_false (ev_is_active (w)))
2643	return;	3392	return;
2644		3393
2645	evpipe_init (EV_A);	3394	evpipe_init (EV_A);
		3395
		3396	EV_FREQUENT_CHECK;
2646		3397
2647	ev_start (EV_A_ (W)w, ++asynccnt);	3398	ev_start (EV_A_ (W)w, ++asynccnt);
2648	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3399	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2649	asyncs [asynccnt - 1] = w;	3400	asyncs [asynccnt - 1] = w;
		3401
		3402	EV_FREQUENT_CHECK;
2650	}	3403	}
2651		3404
2652	void	3405	void
2653	ev_async_stop (EV_P_ ev_async *w)	3406	ev_async_stop (EV_P_ ev_async *w)
2654	{	3407	{
2655	clear_pending (EV_A_ (W)w);	3408	clear_pending (EV_A_ (W)w);
2656	if (expect_false (!ev_is_active (w)))	3409	if (expect_false (!ev_is_active (w)))
2657	return;	3410	return;
2658		3411
		3412	EV_FREQUENT_CHECK;
		3413
2659	{	3414	{
2660	int active = ev_active (w);	3415	int active = ev_active (w);
2661		3416
2662	asyncs [active - 1] = asyncs [--asynccnt];	3417	asyncs [active - 1] = asyncs [--asynccnt];
2663	ev_active (asyncs [active - 1]) = active;	3418	ev_active (asyncs [active - 1]) = active;
2664	}	3419	}
2665		3420
2666	ev_stop (EV_A_ (W)w);	3421	ev_stop (EV_A_ (W)w);
		3422
		3423	EV_FREQUENT_CHECK;
2667	}	3424	}
2668		3425
2669	void	3426	void
2670	ev_async_send (EV_P_ ev_async *w)	3427	ev_async_send (EV_P_ ev_async *w)
2671	{	3428	{
2672	w->sent = 1;	3429	w->sent = 1;
2673	evpipe_write (EV_A_ &gotasync);	3430	evpipe_write (EV_A_ &async_pending);
2674	}	3431	}
2675	#endif	3432	#endif
2676		3433
2677	/*****************************************************************************/	3434	/*****************************************************************************/
2678		3435
…		…
2688	once_cb (EV_P_ struct ev_once *once, int revents)	3445	once_cb (EV_P_ struct ev_once *once, int revents)
2689	{	3446	{
2690	void (*cb)(int revents, void *arg) = once->cb;	3447	void (*cb)(int revents, void *arg) = once->cb;
2691	void *arg = once->arg;	3448	void *arg = once->arg;
2692		3449
2693	ev_io_stop (EV_A_ &once->io);	3450	ev_io_stop (EV_A_ &once->io);
2694	ev_timer_stop (EV_A_ &once->to);	3451	ev_timer_stop (EV_A_ &once->to);
2695	ev_free (once);	3452	ev_free (once);
2696		3453
2697	cb (revents, arg);	3454	cb (revents, arg);
2698	}	3455	}
2699		3456
2700	static void	3457	static void
2701	once_cb_io (EV_P_ ev_io *w, int revents)	3458	once_cb_io (EV_P_ ev_io *w, int revents)
2702	{	3459	{
2703	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));
2704	}	3463	}
2705		3464
2706	static void	3465	static void
2707	once_cb_to (EV_P_ ev_timer *w, int revents)	3466	once_cb_to (EV_P_ ev_timer *w, int revents)
2708	{	3467	{
2709	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));
2710	}	3471	}
2711		3472
2712	void	3473	void
2713	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)
2714	{	3475	{
…		…
2736	ev_timer_set (&once->to, timeout, 0.);	3497	ev_timer_set (&once->to, timeout, 0.);
2737	ev_timer_start (EV_A_ &once->to);	3498	ev_timer_start (EV_A_ &once->to);
2738	}	3499	}
2739	}	3500	}
2740		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
2741	#if EV_MULTIPLICITY	3610	#if EV_MULTIPLICITY
2742	#include "ev_wrap.h"	3611	#include "ev_wrap.h"
2743	#endif	3612	#endif
2744		3613
2745	#ifdef __cplusplus	3614	#ifdef __cplusplus

Diff Legend

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