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Comparing libev/ev.c (file contents):
Revision 1.284 by root, Wed Apr 15 17:49:26 2009 UTC vs.
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 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	*
…		…
57	# endif	57	# endif
58	# ifndef EV_USE_MONOTONIC	58	# ifndef EV_USE_MONOTONIC
59	# define EV_USE_MONOTONIC 1	59	# define EV_USE_MONOTONIC 1
60	# endif	60	# endif
61	# endif	61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
62	# endif	64	# endif
63		65
64	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
65	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
66	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
…		…
108	# define EV_USE_EPOLL 0	110	# define EV_USE_EPOLL 0
109	# endif	111	# endif
110	# endif	112	# endif
111		113
112	# ifndef EV_USE_KQUEUE	114	# ifndef EV_USE_KQUEUE
113	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE 1
115	# else	117	# else
116	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
117	# endif	119	# endif
118	# endif	120	# endif
…		…
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
133	# endif	135	# endif
134	# endif	136	# endif
135		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
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
138	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
139	# else	149	# else
140	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
143		153
144	#endif	154	#endif
145		155
146	#include <math.h>	156	#include <math.h>
147	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
148	#include <fcntl.h>	159	#include <fcntl.h>
149	#include <stddef.h>	160	#include <stddef.h>
150		161
151	#include <stdio.h>	162	#include <stdio.h>
152		163
153	#include <assert.h>	164	#include <assert.h>
154	#include <errno.h>	165	#include <errno.h>
155	#include <sys/types.h>	166	#include <sys/types.h>
156	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
157		169
158	#include <signal.h>	170	#include <signal.h>
159		171
160	#ifdef EV_H	172	#ifdef EV_H
161	# include EV_H	173	# include EV_H
…		…
176	# endif	188	# endif
177	#endif	189	#endif
178		190
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	191	/* this block tries to deduce configuration from header-defined symbols and defaults */
180		192
		193	/* try to deduce the maximum number of signals on this platform */
		194	#if defined (EV_NSIG)
		195	/* use what's provided */
		196	#elif defined (NSIG)
		197	# define EV_NSIG (NSIG)
		198	#elif defined(_NSIG)
		199	# define EV_NSIG (_NSIG)
		200	#elif defined (SIGMAX)
		201	# define EV_NSIG (SIGMAX+1)
		202	#elif defined (SIG_MAX)
		203	# define EV_NSIG (SIG_MAX+1)
		204	#elif defined (_SIG_MAX)
		205	# define EV_NSIG (_SIG_MAX+1)
		206	#elif defined (MAXSIG)
		207	# define EV_NSIG (MAXSIG+1)
		208	#elif defined (MAX_SIG)
		209	# define EV_NSIG (MAX_SIG+1)
		210	#elif defined (SIGARRAYSIZE)
		211	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		212	#elif defined (_sys_nsig)
		213	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		214	#else
		215	# error "unable to find value for NSIG, please report"
		216	/* to make it compile regardless, just remove the above line */
		217	# define EV_NSIG 65
		218	#endif
		219
181	#ifndef EV_USE_CLOCK_SYSCALL	220	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	221	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	222	# define EV_USE_CLOCK_SYSCALL 1
184	# else	223	# else
185	# define EV_USE_CLOCK_SYSCALL 0	224	# define EV_USE_CLOCK_SYSCALL 0
…		…
264	# else	303	# else
265	# define EV_USE_EVENTFD 0	304	# define EV_USE_EVENTFD 0
266	# endif	305	# endif
267	#endif	306	#endif
268		307
		308	#ifndef EV_USE_SIGNALFD
		309	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		310	# define EV_USE_SIGNALFD 1
		311	# else
		312	# define EV_USE_SIGNALFD 0
		313	# endif
		314	#endif
		315
269	#if 0 /* debugging */	316	#if 0 /* debugging */
270	# define EV_VERIFY 3	317	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	318	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	319	# define EV_HEAP_CACHE_AT 1
273	#endif	320	#endif
…		…
282		329
283	#ifndef EV_HEAP_CACHE_AT	330	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	331	# define EV_HEAP_CACHE_AT !EV_MINIMAL
285	#endif	332	#endif
286		333
		334	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		335	/* which makes programs even slower. might work on other unices, too. */
		336	#if EV_USE_CLOCK_SYSCALL
		337	# include <syscall.h>
		338	# ifdef SYS_clock_gettime
		339	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		340	# undef EV_USE_MONOTONIC
		341	# define EV_USE_MONOTONIC 1
		342	# else
		343	# undef EV_USE_CLOCK_SYSCALL
		344	# define EV_USE_CLOCK_SYSCALL 0
		345	# endif
		346	#endif
		347
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	348	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
		349
		350	#ifdef _AIX
		351	/* AIX has a completely broken poll.h header */
		352	# undef EV_USE_POLL
		353	# define EV_USE_POLL 0
		354	#endif
288		355
289	#ifndef CLOCK_MONOTONIC	356	#ifndef CLOCK_MONOTONIC
290	# undef EV_USE_MONOTONIC	357	# undef EV_USE_MONOTONIC
291	# define EV_USE_MONOTONIC 0	358	# define EV_USE_MONOTONIC 0
292	#endif	359	#endif
…		…
320		387
321	#if EV_SELECT_IS_WINSOCKET	388	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	389	# include <winsock.h>
323	#endif	390	#endif
324		391
325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326	/* which makes programs even slower. might work on other unices, too. */
327	#if EV_USE_CLOCK_SYSCALL
328	# include <syscall.h>
329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330	# undef EV_USE_MONOTONIC
331	# define EV_USE_MONOTONIC 1
332	#endif
333
334	#if EV_USE_EVENTFD	392	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	393	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	394	# include <stdint.h>
		395	# ifndef EFD_NONBLOCK
		396	# define EFD_NONBLOCK O_NONBLOCK
		397	# endif
		398	# ifndef EFD_CLOEXEC
		399	# ifdef O_CLOEXEC
		400	# define EFD_CLOEXEC O_CLOEXEC
		401	# else
		402	# define EFD_CLOEXEC 02000000
		403	# endif
		404	# endif
337	# ifdef __cplusplus	405	# ifdef __cplusplus
338	extern "C" {	406	extern "C" {
339	# endif	407	# endif
340	int eventfd (unsigned int initval, int flags);	408	int (eventfd) (unsigned int initval, int flags);
341	# ifdef __cplusplus	409	# ifdef __cplusplus
342	}	410	}
343	# endif	411	# endif
344	#endif	412	#endif
		413
		414	#if EV_USE_SIGNALFD
		415	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		416	# include <stdint.h>
		417	# ifndef SFD_NONBLOCK
		418	# define SFD_NONBLOCK O_NONBLOCK
		419	# endif
		420	# ifndef SFD_CLOEXEC
		421	# ifdef O_CLOEXEC
		422	# define SFD_CLOEXEC O_CLOEXEC
		423	# else
		424	# define SFD_CLOEXEC 02000000
		425	# endif
		426	# endif
		427	# ifdef __cplusplus
		428	extern "C" {
		429	# endif
		430	int signalfd (int fd, const sigset_t *mask, int flags);
		431
		432	struct signalfd_siginfo
		433	{
		434	uint32_t ssi_signo;
		435	char pad[128 - sizeof (uint32_t)];
		436	};
		437	# ifdef __cplusplus
		438	}
		439	# endif
		440	#endif
		441
345		442
346	/**/	443	/**/
347		444
348	#if EV_VERIFY >= 3	445	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	446	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
361	*/	458	*/
362	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	459	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363		460
364	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	461	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	462	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367		463
368	#if __GNUC__ >= 4	464	#if __GNUC__ >= 4
369	# define expect(expr,value) __builtin_expect ((expr),(value))	465	# define expect(expr,value) __builtin_expect ((expr),(value))
370	# define noinline __attribute__ ((noinline))	466	# define noinline __attribute__ ((noinline))
371	#else	467	#else
…		…
384	# define inline_speed static noinline	480	# define inline_speed static noinline
385	#else	481	#else
386	# define inline_speed static inline	482	# define inline_speed static inline
387	#endif	483	#endif
388		484
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	485	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		486
		487	#if EV_MINPRI == EV_MAXPRI
		488	# define ABSPRI(w) (((W)w), 0)
		489	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	490	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		491	#endif
391		492
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	493	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	494	#define EMPTY2(a,b) /* used to suppress some warnings */
394		495
395	typedef ev_watcher *W;	496	typedef ev_watcher *W;
…		…
407		508
408	#if EV_USE_MONOTONIC	509	#if EV_USE_MONOTONIC
409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	510	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
410	#endif	511	#endif
411		512
		513	#ifndef EV_FD_TO_WIN32_HANDLE
		514	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		515	#endif
		516	#ifndef EV_WIN32_HANDLE_TO_FD
		517	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		518	#endif
		519	#ifndef EV_WIN32_CLOSE_FD
		520	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		521	#endif
		522
412	#ifdef _WIN32	523	#ifdef _WIN32
413	# include "ev_win32.c"	524	# include "ev_win32.c"
414	#endif	525	#endif
415		526
416	/*****************************************************************************/	527	/*****************************************************************************/
…		…
431		542
432	if (syserr_cb)	543	if (syserr_cb)
433	syserr_cb (msg);	544	syserr_cb (msg);
434	else	545	else
435	{	546	{
		547	#if EV_AVOID_STDIO
		548	write (STDERR_FILENO, msg, strlen (msg));
		549	write (STDERR_FILENO, ": ", 2);
		550	msg = strerror (errno);
		551	write (STDERR_FILENO, msg, strlen (msg));
		552	write (STDERR_FILENO, "\n", 1);
		553	#else
436	perror (msg);	554	perror (msg);
		555	#endif
437	abort ();	556	abort ();
438	}	557	}
439	}	558	}
440		559
441	static void *	560	static void *
…		…
466	{	585	{
467	ptr = alloc (ptr, size);	586	ptr = alloc (ptr, size);
468		587
469	if (!ptr && size)	588	if (!ptr && size)
470	{	589	{
		590	#if EV_AVOID_STDIO
		591	write (STDERR_FILENO, "libev: memory allocation failed, aborting.",
		592	sizeof ("libev: memory allocation failed, aborting.") - 1);
		593	#else
471	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	594	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		595	#endif
472	abort ();	596	abort ();
473	}	597	}
474		598
475	return ptr;	599	return ptr;
476	}	600	}
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	602	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	603	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		604
481	/*****************************************************************************/	605	/*****************************************************************************/
482		606
		607	/* set in reify when reification needed */
		608	#define EV_ANFD_REIFY 1
		609
		610	/* file descriptor info structure */
483	typedef struct	611	typedef struct
484	{	612	{
485	WL head;	613	WL head;
486	unsigned char events;	614	unsigned char events; /* the events watched for */
487	unsigned char reify;	615	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	616	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
489	unsigned char unused;	617	unsigned char unused;
490	#if EV_USE_EPOLL	618	#if EV_USE_EPOLL
491	unsigned int egen; /* generation counter to counter epoll bugs */	619	unsigned int egen; /* generation counter to counter epoll bugs */
492	#endif	620	#endif
493	#if EV_SELECT_IS_WINSOCKET	621	#if EV_SELECT_IS_WINSOCKET
494	SOCKET handle;	622	SOCKET handle;
495	#endif	623	#endif
496	} ANFD;	624	} ANFD;
497		625
		626	/* stores the pending event set for a given watcher */
498	typedef struct	627	typedef struct
499	{	628	{
500	W w;	629	W w;
501	int events;	630	int events; /* the pending event set for the given watcher */
502	} ANPENDING;	631	} ANPENDING;
503		632
504	#if EV_USE_INOTIFY	633	#if EV_USE_INOTIFY
505	/* hash table entry per inotify-id */	634	/* hash table entry per inotify-id */
506	typedef struct	635	typedef struct
…		…
509	} ANFS;	638	} ANFS;
510	#endif	639	#endif
511		640
512	/* Heap Entry */	641	/* Heap Entry */
513	#if EV_HEAP_CACHE_AT	642	#if EV_HEAP_CACHE_AT
		643	/* a heap element */
514	typedef struct {	644	typedef struct {
515	ev_tstamp at;	645	ev_tstamp at;
516	WT w;	646	WT w;
517	} ANHE;	647	} ANHE;
518		648
519	#define ANHE_w(he) (he).w /* access watcher, read-write */	649	#define ANHE_w(he) (he).w /* access watcher, read-write */
520	#define ANHE_at(he) (he).at /* access cached at, read-only */	650	#define ANHE_at(he) (he).at /* access cached at, read-only */
521	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	651	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
522	#else	652	#else
		653	/* a heap element */
523	typedef WT ANHE;	654	typedef WT ANHE;
524		655
525	#define ANHE_w(he) (he)	656	#define ANHE_w(he) (he)
526	#define ANHE_at(he) (he)->at	657	#define ANHE_at(he) (he)->at
527	#define ANHE_at_cache(he)	658	#define ANHE_at_cache(he)
…		…
551		682
552	static int ev_default_loop_ptr;	683	static int ev_default_loop_ptr;
553		684
554	#endif	685	#endif
555		686
		687	#if EV_MINIMAL < 2
		688	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		689	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		690	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		691	#else
		692	# define EV_RELEASE_CB (void)0
		693	# define EV_ACQUIRE_CB (void)0
		694	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		695	#endif
		696
		697	#define EVUNLOOP_RECURSE 0x80
		698
556	/*****************************************************************************/	699	/*****************************************************************************/
557		700
		701	#ifndef EV_HAVE_EV_TIME
558	ev_tstamp	702	ev_tstamp
559	ev_time (void)	703	ev_time (void)
560	{	704	{
561	#if EV_USE_REALTIME	705	#if EV_USE_REALTIME
562	if (expect_true (have_realtime))	706	if (expect_true (have_realtime))
…		…
569		713
570	struct timeval tv;	714	struct timeval tv;
571	gettimeofday (&tv, 0);	715	gettimeofday (&tv, 0);
572	return tv.tv_sec + tv.tv_usec * 1e-6;	716	return tv.tv_sec + tv.tv_usec * 1e-6;
573	}	717	}
		718	#endif
574		719
575	inline_size ev_tstamp	720	inline_size ev_tstamp
576	get_clock (void)	721	get_clock (void)
577	{	722	{
578	#if EV_USE_MONOTONIC	723	#if EV_USE_MONOTONIC
…		…
614		759
615	tv.tv_sec = (time_t)delay;	760	tv.tv_sec = (time_t)delay;
616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	761	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617		762
618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	763	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
619	/* somehting nto guaranteed by newer posix versions, but guaranteed */	764	/* something not guaranteed by newer posix versions, but guaranteed */
620	/* by older ones */	765	/* by older ones */
621	select (0, 0, 0, 0, &tv);	766	select (0, 0, 0, 0, &tv);
622	#endif	767	#endif
623	}	768	}
624	}	769	}
625		770
626	/*****************************************************************************/	771	/*****************************************************************************/
627		772
628	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	773	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
629		774
		775	/* find a suitable new size for the given array, */
		776	/* hopefully by rounding to a ncie-to-malloc size */
630	inline_size int	777	inline_size int
631	array_nextsize (int elem, int cur, int cnt)	778	array_nextsize (int elem, int cur, int cnt)
632	{	779	{
633	int ncur = cur + 1;	780	int ncur = cur + 1;
634		781
…		…
680	#define array_free(stem, idx) \	827	#define array_free(stem, idx) \
681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	828	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682		829
683	/*****************************************************************************/	830	/*****************************************************************************/
684		831
		832	/* dummy callback for pending events */
		833	static void noinline
		834	pendingcb (EV_P_ ev_prepare *w, int revents)
		835	{
		836	}
		837
685	void noinline	838	void noinline
686	ev_feed_event (EV_P_ void *w, int revents)	839	ev_feed_event (EV_P_ void *w, int revents)
687	{	840	{
688	W w_ = (W)w;	841	W w_ = (W)w;
689	int pri = ABSPRI (w_);	842	int pri = ABSPRI (w_);
…		…
724	}	877	}
725		878
726	/*****************************************************************************/	879	/*****************************************************************************/
727		880
728	inline_speed void	881	inline_speed void
729	fd_event (EV_P_ int fd, int revents)	882	fd_event_nc (EV_P_ int fd, int revents)
730	{	883	{
731	ANFD *anfd = anfds + fd;	884	ANFD *anfd = anfds + fd;
732	ev_io *w;	885	ev_io *w;
733		886
734	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	887	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
738	if (ev)	891	if (ev)
739	ev_feed_event (EV_A_ (W)w, ev);	892	ev_feed_event (EV_A_ (W)w, ev);
740	}	893	}
741	}	894	}
742		895
		896	/* do not submit kernel events for fds that have reify set */
		897	/* because that means they changed while we were polling for new events */
		898	inline_speed void
		899	fd_event (EV_P_ int fd, int revents)
		900	{
		901	ANFD *anfd = anfds + fd;
		902
		903	if (expect_true (!anfd->reify))
		904	fd_event_nc (EV_A_ fd, revents);
		905	}
		906
743	void	907	void
744	ev_feed_fd_event (EV_P_ int fd, int revents)	908	ev_feed_fd_event (EV_P_ int fd, int revents)
745	{	909	{
746	if (fd >= 0 && fd < anfdmax)	910	if (fd >= 0 && fd < anfdmax)
747	fd_event (EV_A_ fd, revents);	911	fd_event_nc (EV_A_ fd, revents);
748	}	912	}
749		913
		914	/* make sure the external fd watch events are in-sync */
		915	/* with the kernel/libev internal state */
750	inline_size void	916	inline_size void
751	fd_reify (EV_P)	917	fd_reify (EV_P)
752	{	918	{
753	int i;	919	int i;
754		920
…		…
765		931
766	#if EV_SELECT_IS_WINSOCKET	932	#if EV_SELECT_IS_WINSOCKET
767	if (events)	933	if (events)
768	{	934	{
769	unsigned long arg;	935	unsigned long arg;
770	#ifdef EV_FD_TO_WIN32_HANDLE
771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	936	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
772	#else
773	anfd->handle = _get_osfhandle (fd);
774	#endif
775	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	937	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
776	}	938	}
777	#endif	939	#endif
778		940
779	{	941	{
…		…
789	}	951	}
790		952
791	fdchangecnt = 0;	953	fdchangecnt = 0;
792	}	954	}
793		955
		956	/* something about the given fd changed */
794	inline_size void	957	inline_size void
795	fd_change (EV_P_ int fd, int flags)	958	fd_change (EV_P_ int fd, int flags)
796	{	959	{
797	unsigned char reify = anfds [fd].reify;	960	unsigned char reify = anfds [fd].reify;
798	anfds [fd].reify |= flags;	961	anfds [fd].reify |= flags;
…		…
803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	966	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
804	fdchanges [fdchangecnt - 1] = fd;	967	fdchanges [fdchangecnt - 1] = fd;
805	}	968	}
806	}	969	}
807		970
		971	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
808	inline_speed void	972	inline_speed void
809	fd_kill (EV_P_ int fd)	973	fd_kill (EV_P_ int fd)
810	{	974	{
811	ev_io *w;	975	ev_io *w;
812		976
…		…
815	ev_io_stop (EV_A_ w);	979	ev_io_stop (EV_A_ w);
816	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	980	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
817	}	981	}
818	}	982	}
819		983
		984	/* check whether the given fd is atcually valid, for error recovery */
820	inline_size int	985	inline_size int
821	fd_valid (int fd)	986	fd_valid (int fd)
822	{	987	{
823	#ifdef _WIN32	988	#ifdef _WIN32
824	return _get_osfhandle (fd) != -1;	989	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
825	#else	990	#else
826	return fcntl (fd, F_GETFD) != -1;	991	return fcntl (fd, F_GETFD) != -1;
827	#endif	992	#endif
828	}	993	}
829		994
…		…
847		1012
848	for (fd = anfdmax; fd--; )	1013	for (fd = anfdmax; fd--; )
849	if (anfds [fd].events)	1014	if (anfds [fd].events)
850	{	1015	{
851	fd_kill (EV_A_ fd);	1016	fd_kill (EV_A_ fd);
852	return;	1017	break;
853	}	1018	}
854	}	1019	}
855		1020
856	/* usually called after fork if backend needs to re-arm all fds from scratch */	1021	/* usually called after fork if backend needs to re-arm all fds from scratch */
857	static void noinline	1022	static void noinline
…		…
862	for (fd = 0; fd < anfdmax; ++fd)	1027	for (fd = 0; fd < anfdmax; ++fd)
863	if (anfds [fd].events)	1028	if (anfds [fd].events)
864	{	1029	{
865	anfds [fd].events = 0;	1030	anfds [fd].events = 0;
866	anfds [fd].emask = 0;	1031	anfds [fd].emask = 0;
867	fd_change (EV_A_ fd, EV__IOFDSET | 1);	1032	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
868	}	1033	}
869	}	1034	}
870		1035
871	/*****************************************************************************/	1036	/*****************************************************************************/
872		1037
…		…
947		1112
948	for (;;)	1113	for (;;)
949	{	1114	{
950	int c = k << 1;	1115	int c = k << 1;
951		1116
952	if (c > N + HEAP0 - 1)	1117	if (c >= N + HEAP0)
953	break;	1118	break;
954		1119
955	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1120	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
956	? 1 : 0;	1121	? 1 : 0;
957		1122
…		…
989		1154
990	heap [k] = he;	1155	heap [k] = he;
991	ev_active (ANHE_w (he)) = k;	1156	ev_active (ANHE_w (he)) = k;
992	}	1157	}
993		1158
		1159	/* move an element suitably so it is in a correct place */
994	inline_size void	1160	inline_size void
995	adjustheap (ANHE *heap, int N, int k)	1161	adjustheap (ANHE *heap, int N, int k)
996	{	1162	{
997	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1163	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
998	upheap (heap, k);	1164	upheap (heap, k);
999	else	1165	else
1000	downheap (heap, N, k);	1166	downheap (heap, N, k);
1001	}	1167	}
1002		1168
…		…
1012	upheap (heap, i + HEAP0);	1178	upheap (heap, i + HEAP0);
1013	}	1179	}
1014		1180
1015	/*****************************************************************************/	1181	/*****************************************************************************/
1016		1182
		1183	/* associate signal watchers to a signal signal */
1017	typedef struct	1184	typedef struct
1018	{	1185	{
		1186	EV_ATOMIC_T pending;
		1187	#if EV_MULTIPLICITY
		1188	EV_P;
		1189	#endif
1019	WL head;	1190	WL head;
1020	EV_ATOMIC_T gotsig;
1021	} ANSIG;	1191	} ANSIG;
1022		1192
1023	static ANSIG *signals;	1193	static ANSIG signals [EV_NSIG - 1];
1024	static int signalmax;
1025
1026	static EV_ATOMIC_T gotsig;
1027		1194
1028	/*****************************************************************************/	1195	/*****************************************************************************/
1029		1196
		1197	/* used to prepare libev internal fd's */
		1198	/* this is not fork-safe */
1030	inline_speed void	1199	inline_speed void
1031	fd_intern (int fd)	1200	fd_intern (int fd)
1032	{	1201	{
1033	#ifdef _WIN32	1202	#ifdef _WIN32
1034	unsigned long arg = 1;	1203	unsigned long arg = 1;
1035	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1204	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1036	#else	1205	#else
1037	fcntl (fd, F_SETFD, FD_CLOEXEC);	1206	fcntl (fd, F_SETFD, FD_CLOEXEC);
1038	fcntl (fd, F_SETFL, O_NONBLOCK);	1207	fcntl (fd, F_SETFL, O_NONBLOCK);
1039	#endif	1208	#endif
1040	}	1209	}
1041		1210
1042	static void noinline	1211	static void noinline
1043	evpipe_init (EV_P)	1212	evpipe_init (EV_P)
1044	{	1213	{
1045	if (!ev_is_active (&pipeev))	1214	if (!ev_is_active (&pipe_w))
1046	{	1215	{
1047	#if EV_USE_EVENTFD	1216	#if EV_USE_EVENTFD
		1217	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1218	if (evfd < 0 && errno == EINVAL)
1048	if ((evfd = eventfd (0, 0)) >= 0)	1219	evfd = eventfd (0, 0);
		1220
		1221	if (evfd >= 0)
1049	{	1222	{
1050	evpipe [0] = -1;	1223	evpipe [0] = -1;
1051	fd_intern (evfd);	1224	fd_intern (evfd); /* doing it twice doesn't hurt */
1052	ev_io_set (&pipeev, evfd, EV_READ);	1225	ev_io_set (&pipe_w, evfd, EV_READ);
1053	}	1226	}
1054	else	1227	else
1055	#endif	1228	#endif
1056	{	1229	{
1057	while (pipe (evpipe))	1230	while (pipe (evpipe))
1058	ev_syserr ("(libev) error creating signal/async pipe");	1231	ev_syserr ("(libev) error creating signal/async pipe");
1059		1232
1060	fd_intern (evpipe [0]);	1233	fd_intern (evpipe [0]);
1061	fd_intern (evpipe [1]);	1234	fd_intern (evpipe [1]);
1062	ev_io_set (&pipeev, evpipe [0], EV_READ);	1235	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1063	}	1236	}
1064		1237
1065	ev_io_start (EV_A_ &pipeev);	1238	ev_io_start (EV_A_ &pipe_w);
1066	ev_unref (EV_A); /* watcher should not keep loop alive */	1239	ev_unref (EV_A); /* watcher should not keep loop alive */
1067	}	1240	}
1068	}	1241	}
1069		1242
1070	inline_size void	1243	inline_size void
…		…
1088		1261
1089	errno = old_errno;	1262	errno = old_errno;
1090	}	1263	}
1091	}	1264	}
1092		1265
		1266	/* called whenever the libev signal pipe */
		1267	/* got some events (signal, async) */
1093	static void	1268	static void
1094	pipecb (EV_P_ ev_io *iow, int revents)	1269	pipecb (EV_P_ ev_io *iow, int revents)
1095	{	1270	{
		1271	int i;
		1272
1096	#if EV_USE_EVENTFD	1273	#if EV_USE_EVENTFD
1097	if (evfd >= 0)	1274	if (evfd >= 0)
1098	{	1275	{
1099	uint64_t counter;	1276	uint64_t counter;
1100	read (evfd, &counter, sizeof (uint64_t));	1277	read (evfd, &counter, sizeof (uint64_t));
…		…
1104	{	1281	{
1105	char dummy;	1282	char dummy;
1106	read (evpipe [0], &dummy, 1);	1283	read (evpipe [0], &dummy, 1);
1107	}	1284	}
1108		1285
1109	if (gotsig && ev_is_default_loop (EV_A))	1286	if (sig_pending)
1110	{	1287	{
1111	int signum;	1288	sig_pending = 0;
1112	gotsig = 0;
1113		1289
1114	for (signum = signalmax; signum--; )	1290	for (i = EV_NSIG - 1; i--; )
1115	if (signals [signum].gotsig)	1291	if (expect_false (signals [i].pending))
1116	ev_feed_signal_event (EV_A_ signum + 1);	1292	ev_feed_signal_event (EV_A_ i + 1);
1117	}	1293	}
1118		1294
1119	#if EV_ASYNC_ENABLE	1295	#if EV_ASYNC_ENABLE
1120	if (gotasync)	1296	if (async_pending)
1121	{	1297	{
1122	int i;	1298	async_pending = 0;
1123	gotasync = 0;
1124		1299
1125	for (i = asynccnt; i--; )	1300	for (i = asynccnt; i--; )
1126	if (asyncs [i]->sent)	1301	if (asyncs [i]->sent)
1127	{	1302	{
1128	asyncs [i]->sent = 0;	1303	asyncs [i]->sent = 0;
…		…
1136		1311
1137	static void	1312	static void
1138	ev_sighandler (int signum)	1313	ev_sighandler (int signum)
1139	{	1314	{
1140	#if EV_MULTIPLICITY	1315	#if EV_MULTIPLICITY
1141	struct ev_loop *loop = &default_loop_struct;	1316	EV_P = signals [signum - 1].loop;
1142	#endif	1317	#endif
1143		1318
1144	#if _WIN32	1319	#ifdef _WIN32
1145	signal (signum, ev_sighandler);	1320	signal (signum, ev_sighandler);
1146	#endif	1321	#endif
1147		1322
1148	signals [signum - 1].gotsig = 1;	1323	signals [signum - 1].pending = 1;
1149	evpipe_write (EV_A_ &gotsig);	1324	evpipe_write (EV_A_ &sig_pending);
1150	}	1325	}
1151		1326
1152	void noinline	1327	void noinline
1153	ev_feed_signal_event (EV_P_ int signum)	1328	ev_feed_signal_event (EV_P_ int signum)
1154	{	1329	{
1155	WL w;	1330	WL w;
1156		1331
		1332	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1333	return;
		1334
		1335	--signum;
		1336
1157	#if EV_MULTIPLICITY	1337	#if EV_MULTIPLICITY
1158	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1338	/* it is permissible to try to feed a signal to the wrong loop */
1159	#endif	1339	/* or, likely more useful, feeding a signal nobody is waiting for */
1160		1340
1161	--signum;	1341	if (expect_false (signals [signum].loop != EV_A))
1162
1163	if (signum < 0 || signum >= signalmax)
1164	return;	1342	return;
		1343	#endif
1165		1344
1166	signals [signum].gotsig = 0;	1345	signals [signum].pending = 0;
1167		1346
1168	for (w = signals [signum].head; w; w = w->next)	1347	for (w = signals [signum].head; w; w = w->next)
1169	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1348	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1170	}	1349	}
1171		1350
		1351	#if EV_USE_SIGNALFD
		1352	static void
		1353	sigfdcb (EV_P_ ev_io *iow, int revents)
		1354	{
		1355	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1356
		1357	for (;;)
		1358	{
		1359	ssize_t res = read (sigfd, si, sizeof (si));
		1360
		1361	/* not ISO-C, as res might be -1, but works with SuS */
		1362	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1363	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1364
		1365	if (res < (ssize_t)sizeof (si))
		1366	break;
		1367	}
		1368	}
		1369	#endif
		1370
1172	/*****************************************************************************/	1371	/*****************************************************************************/
1173		1372
1174	static WL childs [EV_PID_HASHSIZE];	1373	static WL childs [EV_PID_HASHSIZE];
1175		1374
1176	#ifndef _WIN32	1375	#ifndef _WIN32
…		…
1179		1378
1180	#ifndef WIFCONTINUED	1379	#ifndef WIFCONTINUED
1181	# define WIFCONTINUED(status) 0	1380	# define WIFCONTINUED(status) 0
1182	#endif	1381	#endif
1183		1382
		1383	/* handle a single child status event */
1184	inline_speed void	1384	inline_speed void
1185	child_reap (EV_P_ int chain, int pid, int status)	1385	child_reap (EV_P_ int chain, int pid, int status)
1186	{	1386	{
1187	ev_child *w;	1387	ev_child *w;
1188	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1388	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
…		…
1202		1402
1203	#ifndef WCONTINUED	1403	#ifndef WCONTINUED
1204	# define WCONTINUED 0	1404	# define WCONTINUED 0
1205	#endif	1405	#endif
1206		1406
		1407	/* called on sigchld etc., calls waitpid */
1207	static void	1408	static void
1208	childcb (EV_P_ ev_signal *sw, int revents)	1409	childcb (EV_P_ ev_signal *sw, int revents)
1209	{	1410	{
1210	int pid, status;	1411	int pid, status;
1211		1412
…		…
1318	ev_backend (EV_P)	1519	ev_backend (EV_P)
1319	{	1520	{
1320	return backend;	1521	return backend;
1321	}	1522	}
1322		1523
		1524	#if EV_MINIMAL < 2
1323	unsigned int	1525	unsigned int
1324	ev_loop_count (EV_P)	1526	ev_loop_count (EV_P)
1325	{	1527	{
1326	return loop_count;	1528	return loop_count;
1327	}	1529	}
1328		1530
		1531	unsigned int
		1532	ev_loop_depth (EV_P)
		1533	{
		1534	return loop_depth;
		1535	}
		1536
1329	void	1537	void
1330	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1538	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1331	{	1539	{
1332	io_blocktime = interval;	1540	io_blocktime = interval;
1333	}	1541	}
…		…
1336	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1544	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1337	{	1545	{
1338	timeout_blocktime = interval;	1546	timeout_blocktime = interval;
1339	}	1547	}
1340		1548
		1549	void
		1550	ev_set_userdata (EV_P_ void *data)
		1551	{
		1552	userdata = data;
		1553	}
		1554
		1555	void *
		1556	ev_userdata (EV_P)
		1557	{
		1558	return userdata;
		1559	}
		1560
		1561	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1562	{
		1563	invoke_cb = invoke_pending_cb;
		1564	}
		1565
		1566	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1567	{
		1568	release_cb = release;
		1569	acquire_cb = acquire;
		1570	}
		1571	#endif
		1572
		1573	/* initialise a loop structure, must be zero-initialised */
1341	static void noinline	1574	static void noinline
1342	loop_init (EV_P_ unsigned int flags)	1575	loop_init (EV_P_ unsigned int flags)
1343	{	1576	{
1344	if (!backend)	1577	if (!backend)
1345	{	1578	{
…		…
1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1594	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1362	have_monotonic = 1;	1595	have_monotonic = 1;
1363	}	1596	}
1364	#endif	1597	#endif
1365		1598
		1599	/* pid check not overridable via env */
		1600	#ifndef _WIN32
		1601	if (flags & EVFLAG_FORKCHECK)
		1602	curpid = getpid ();
		1603	#endif
		1604
		1605	if (!(flags & EVFLAG_NOENV)
		1606	&& !enable_secure ()
		1607	&& getenv ("LIBEV_FLAGS"))
		1608	flags = atoi (getenv ("LIBEV_FLAGS"));
		1609
1366	ev_rt_now = ev_time ();	1610	ev_rt_now = ev_time ();
1367	mn_now = get_clock ();	1611	mn_now = get_clock ();
1368	now_floor = mn_now;	1612	now_floor = mn_now;
1369	rtmn_diff = ev_rt_now - mn_now;	1613	rtmn_diff = ev_rt_now - mn_now;
		1614	#if EV_MINIMAL < 2
		1615	invoke_cb = ev_invoke_pending;
		1616	#endif
1370		1617
1371	io_blocktime = 0.;	1618	io_blocktime = 0.;
1372	timeout_blocktime = 0.;	1619	timeout_blocktime = 0.;
1373	backend = 0;	1620	backend = 0;
1374	backend_fd = -1;	1621	backend_fd = -1;
1375	gotasync = 0;	1622	sig_pending = 0;
		1623	#if EV_ASYNC_ENABLE
		1624	async_pending = 0;
		1625	#endif
1376	#if EV_USE_INOTIFY	1626	#if EV_USE_INOTIFY
1377	fs_fd = -2;	1627	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1378	#endif	1628	#endif
1379		1629	#if EV_USE_SIGNALFD
1380	/* pid check not overridable via env */	1630	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1381	#ifndef _WIN32
1382	if (flags & EVFLAG_FORKCHECK)
1383	curpid = getpid ();
1384	#endif	1631	#endif
1385
1386	if (!(flags & EVFLAG_NOENV)
1387	&& !enable_secure ()
1388	&& getenv ("LIBEV_FLAGS"))
1389	flags = atoi (getenv ("LIBEV_FLAGS"));
1390		1632
1391	if (!(flags & 0x0000ffffU))	1633	if (!(flags & 0x0000ffffU))
1392	flags |= ev_recommended_backends ();	1634	flags |= ev_recommended_backends ();
1393		1635
1394	#if EV_USE_PORT	1636	#if EV_USE_PORT
…		…
1405	#endif	1647	#endif
1406	#if EV_USE_SELECT	1648	#if EV_USE_SELECT
1407	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1649	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1408	#endif	1650	#endif
1409		1651
		1652	ev_prepare_init (&pending_w, pendingcb);
		1653
1410	ev_init (&pipeev, pipecb);	1654	ev_init (&pipe_w, pipecb);
1411	ev_set_priority (&pipeev, EV_MAXPRI);	1655	ev_set_priority (&pipe_w, EV_MAXPRI);
1412	}	1656	}
1413	}	1657	}
1414		1658
		1659	/* free up a loop structure */
1415	static void noinline	1660	static void noinline
1416	loop_destroy (EV_P)	1661	loop_destroy (EV_P)
1417	{	1662	{
1418	int i;	1663	int i;
1419		1664
1420	if (ev_is_active (&pipeev))	1665	if (ev_is_active (&pipe_w))
1421	{	1666	{
1422	ev_ref (EV_A); /* signal watcher */	1667	/*ev_ref (EV_A);*/
1423	ev_io_stop (EV_A_ &pipeev);	1668	/*ev_io_stop (EV_A_ &pipe_w);*/
1424		1669
1425	#if EV_USE_EVENTFD	1670	#if EV_USE_EVENTFD
1426	if (evfd >= 0)	1671	if (evfd >= 0)
1427	close (evfd);	1672	close (evfd);
1428	#endif	1673	#endif
1429		1674
1430	if (evpipe [0] >= 0)	1675	if (evpipe [0] >= 0)
1431	{	1676	{
1432	close (evpipe [0]);	1677	EV_WIN32_CLOSE_FD (evpipe [0]);
1433	close (evpipe [1]);	1678	EV_WIN32_CLOSE_FD (evpipe [1]);
1434	}	1679	}
1435	}	1680	}
		1681
		1682	#if EV_USE_SIGNALFD
		1683	if (ev_is_active (&sigfd_w))
		1684	close (sigfd);
		1685	#endif
1436		1686
1437	#if EV_USE_INOTIFY	1687	#if EV_USE_INOTIFY
1438	if (fs_fd >= 0)	1688	if (fs_fd >= 0)
1439	close (fs_fd);	1689	close (fs_fd);
1440	#endif	1690	#endif
…		…
1464	#if EV_IDLE_ENABLE	1714	#if EV_IDLE_ENABLE
1465	array_free (idle, [i]);	1715	array_free (idle, [i]);
1466	#endif	1716	#endif
1467	}	1717	}
1468		1718
1469	ev_free (anfds); anfdmax = 0;	1719	ev_free (anfds); anfds = 0; anfdmax = 0;
1470		1720
1471	/* have to use the microsoft-never-gets-it-right macro */	1721	/* have to use the microsoft-never-gets-it-right macro */
1472	array_free (rfeed, EMPTY);	1722	array_free (rfeed, EMPTY);
1473	array_free (fdchange, EMPTY);	1723	array_free (fdchange, EMPTY);
1474	array_free (timer, EMPTY);	1724	array_free (timer, EMPTY);
…		…
1505	#endif	1755	#endif
1506	#if EV_USE_INOTIFY	1756	#if EV_USE_INOTIFY
1507	infy_fork (EV_A);	1757	infy_fork (EV_A);
1508	#endif	1758	#endif
1509		1759
1510	if (ev_is_active (&pipeev))	1760	if (ev_is_active (&pipe_w))
1511	{	1761	{
1512	/* this "locks" the handlers against writing to the pipe */	1762	/* this "locks" the handlers against writing to the pipe */
1513	/* while we modify the fd vars */	1763	/* while we modify the fd vars */
1514	gotsig = 1;	1764	sig_pending = 1;
1515	#if EV_ASYNC_ENABLE	1765	#if EV_ASYNC_ENABLE
1516	gotasync = 1;	1766	async_pending = 1;
1517	#endif	1767	#endif
1518		1768
1519	ev_ref (EV_A);	1769	ev_ref (EV_A);
1520	ev_io_stop (EV_A_ &pipeev);	1770	ev_io_stop (EV_A_ &pipe_w);
1521		1771
1522	#if EV_USE_EVENTFD	1772	#if EV_USE_EVENTFD
1523	if (evfd >= 0)	1773	if (evfd >= 0)
1524	close (evfd);	1774	close (evfd);
1525	#endif	1775	#endif
1526		1776
1527	if (evpipe [0] >= 0)	1777	if (evpipe [0] >= 0)
1528	{	1778	{
1529	close (evpipe [0]);	1779	EV_WIN32_CLOSE_FD (evpipe [0]);
1530	close (evpipe [1]);	1780	EV_WIN32_CLOSE_FD (evpipe [1]);
1531	}	1781	}
1532		1782
1533	evpipe_init (EV_A);	1783	evpipe_init (EV_A);
1534	/* now iterate over everything, in case we missed something */	1784	/* now iterate over everything, in case we missed something */
1535	pipecb (EV_A_ &pipeev, EV_READ);	1785	pipecb (EV_A_ &pipe_w, EV_READ);
1536	}	1786	}
1537		1787
1538	postfork = 0;	1788	postfork = 0;
1539	}	1789	}
1540		1790
1541	#if EV_MULTIPLICITY	1791	#if EV_MULTIPLICITY
1542		1792
1543	struct ev_loop *	1793	struct ev_loop *
1544	ev_loop_new (unsigned int flags)	1794	ev_loop_new (unsigned int flags)
1545	{	1795	{
1546	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1796	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1547		1797
1548	memset (loop, 0, sizeof (struct ev_loop));	1798	memset (EV_A, 0, sizeof (struct ev_loop));
1549
1550	loop_init (EV_A_ flags);	1799	loop_init (EV_A_ flags);
1551		1800
1552	if (ev_backend (EV_A))	1801	if (ev_backend (EV_A))
1553	return loop;	1802	return EV_A;
1554		1803
1555	return 0;	1804	return 0;
1556	}	1805	}
1557		1806
1558	void	1807	void
…		…
1565	void	1814	void
1566	ev_loop_fork (EV_P)	1815	ev_loop_fork (EV_P)
1567	{	1816	{
1568	postfork = 1; /* must be in line with ev_default_fork */	1817	postfork = 1; /* must be in line with ev_default_fork */
1569	}	1818	}
		1819	#endif /* multiplicity */
1570		1820
1571	#if EV_VERIFY	1821	#if EV_VERIFY
1572	static void noinline	1822	static void noinline
1573	verify_watcher (EV_P_ W w)	1823	verify_watcher (EV_P_ W w)
1574	{	1824	{
…		…
1602	verify_watcher (EV_A_ ws [cnt]);	1852	verify_watcher (EV_A_ ws [cnt]);
1603	}	1853	}
1604	}	1854	}
1605	#endif	1855	#endif
1606		1856
		1857	#if EV_MINIMAL < 2
1607	void	1858	void
1608	ev_loop_verify (EV_P)	1859	ev_loop_verify (EV_P)
1609	{	1860	{
1610	#if EV_VERIFY	1861	#if EV_VERIFY
1611	int i;	1862	int i;
…		…
1660	assert (checkmax >= checkcnt);	1911	assert (checkmax >= checkcnt);
1661	array_verify (EV_A_ (W *)checks, checkcnt);	1912	array_verify (EV_A_ (W *)checks, checkcnt);
1662		1913
1663	# if 0	1914	# if 0
1664	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1915	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1665	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1916	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1666	# endif
1667	#endif	1917	# endif
		1918	#endif
1668	}	1919	}
1669		1920	#endif
1670	#endif /* multiplicity */
1671		1921
1672	#if EV_MULTIPLICITY	1922	#if EV_MULTIPLICITY
1673	struct ev_loop *	1923	struct ev_loop *
1674	ev_default_loop_init (unsigned int flags)	1924	ev_default_loop_init (unsigned int flags)
1675	#else	1925	#else
…		…
1678	#endif	1928	#endif
1679	{	1929	{
1680	if (!ev_default_loop_ptr)	1930	if (!ev_default_loop_ptr)
1681	{	1931	{
1682	#if EV_MULTIPLICITY	1932	#if EV_MULTIPLICITY
1683	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1933	EV_P = ev_default_loop_ptr = &default_loop_struct;
1684	#else	1934	#else
1685	ev_default_loop_ptr = 1;	1935	ev_default_loop_ptr = 1;
1686	#endif	1936	#endif
1687		1937
1688	loop_init (EV_A_ flags);	1938	loop_init (EV_A_ flags);
…		…
1705		1955
1706	void	1956	void
1707	ev_default_destroy (void)	1957	ev_default_destroy (void)
1708	{	1958	{
1709	#if EV_MULTIPLICITY	1959	#if EV_MULTIPLICITY
1710	struct ev_loop *loop = ev_default_loop_ptr;	1960	EV_P = ev_default_loop_ptr;
1711	#endif	1961	#endif
1712		1962
1713	ev_default_loop_ptr = 0;	1963	ev_default_loop_ptr = 0;
1714		1964
1715	#ifndef _WIN32	1965	#ifndef _WIN32
…		…
1722		1972
1723	void	1973	void
1724	ev_default_fork (void)	1974	ev_default_fork (void)
1725	{	1975	{
1726	#if EV_MULTIPLICITY	1976	#if EV_MULTIPLICITY
1727	struct ev_loop *loop = ev_default_loop_ptr;	1977	EV_P = ev_default_loop_ptr;
1728	#endif	1978	#endif
1729		1979
1730	postfork = 1; /* must be in line with ev_loop_fork */	1980	postfork = 1; /* must be in line with ev_loop_fork */
1731	}	1981	}
1732		1982
…		…
1736	ev_invoke (EV_P_ void *w, int revents)	1986	ev_invoke (EV_P_ void *w, int revents)
1737	{	1987	{
1738	EV_CB_INVOKE ((W)w, revents);	1988	EV_CB_INVOKE ((W)w, revents);
1739	}	1989	}
1740		1990
1741	inline_speed void	1991	unsigned int
1742	call_pending (EV_P)	1992	ev_pending_count (EV_P)
		1993	{
		1994	int pri;
		1995	unsigned int count = 0;
		1996
		1997	for (pri = NUMPRI; pri--; )
		1998	count += pendingcnt [pri];
		1999
		2000	return count;
		2001	}
		2002
		2003	void noinline
		2004	ev_invoke_pending (EV_P)
1743	{	2005	{
1744	int pri;	2006	int pri;
1745		2007
1746	for (pri = NUMPRI; pri--; )	2008	for (pri = NUMPRI; pri--; )
1747	while (pendingcnt [pri])	2009	while (pendingcnt [pri])
1748	{	2010	{
1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2011	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1750		2012
1751	if (expect_true (p->w))
1752	{
1753	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	2013	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		2014	/* ^ this is no longer true, as pending_w could be here */
1754		2015
1755	p->w->pending = 0;	2016	p->w->pending = 0;
1756	EV_CB_INVOKE (p->w, p->events);	2017	EV_CB_INVOKE (p->w, p->events);
1757	EV_FREQUENT_CHECK;	2018	EV_FREQUENT_CHECK;
1758	}
1759	}	2019	}
1760	}	2020	}
1761		2021
1762	#if EV_IDLE_ENABLE	2022	#if EV_IDLE_ENABLE
		2023	/* make idle watchers pending. this handles the "call-idle */
		2024	/* only when higher priorities are idle" logic */
1763	inline_size void	2025	inline_size void
1764	idle_reify (EV_P)	2026	idle_reify (EV_P)
1765	{	2027	{
1766	if (expect_false (idleall))	2028	if (expect_false (idleall))
1767	{	2029	{
…		…
1780	}	2042	}
1781	}	2043	}
1782	}	2044	}
1783	#endif	2045	#endif
1784		2046
		2047	/* make timers pending */
1785	inline_size void	2048	inline_size void
1786	timers_reify (EV_P)	2049	timers_reify (EV_P)
1787	{	2050	{
1788	EV_FREQUENT_CHECK;	2051	EV_FREQUENT_CHECK;
1789		2052
…		…
1818	feed_reverse_done (EV_A_ EV_TIMEOUT);	2081	feed_reverse_done (EV_A_ EV_TIMEOUT);
1819	}	2082	}
1820	}	2083	}
1821		2084
1822	#if EV_PERIODIC_ENABLE	2085	#if EV_PERIODIC_ENABLE
		2086	/* make periodics pending */
1823	inline_size void	2087	inline_size void
1824	periodics_reify (EV_P)	2088	periodics_reify (EV_P)
1825	{	2089	{
1826	EV_FREQUENT_CHECK;	2090	EV_FREQUENT_CHECK;
1827		2091
…		…
1874		2138
1875	feed_reverse_done (EV_A_ EV_PERIODIC);	2139	feed_reverse_done (EV_A_ EV_PERIODIC);
1876	}	2140	}
1877	}	2141	}
1878		2142
		2143	/* simply recalculate all periodics */
		2144	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1879	static void noinline	2145	static void noinline
1880	periodics_reschedule (EV_P)	2146	periodics_reschedule (EV_P)
1881	{	2147	{
1882	int i;	2148	int i;
1883		2149
…		…
1896		2162
1897	reheap (periodics, periodiccnt);	2163	reheap (periodics, periodiccnt);
1898	}	2164	}
1899	#endif	2165	#endif
1900		2166
		2167	/* adjust all timers by a given offset */
		2168	static void noinline
		2169	timers_reschedule (EV_P_ ev_tstamp adjust)
		2170	{
		2171	int i;
		2172
		2173	for (i = 0; i < timercnt; ++i)
		2174	{
		2175	ANHE *he = timers + i + HEAP0;
		2176	ANHE_w (*he)->at += adjust;
		2177	ANHE_at_cache (*he);
		2178	}
		2179	}
		2180
		2181	/* fetch new monotonic and realtime times from the kernel */
		2182	/* also detect if there was a timejump, and act accordingly */
1901	inline_speed void	2183	inline_speed void
1902	time_update (EV_P_ ev_tstamp max_block)	2184	time_update (EV_P_ ev_tstamp max_block)
1903	{	2185	{
1904	int i;
1905
1906	#if EV_USE_MONOTONIC	2186	#if EV_USE_MONOTONIC
1907	if (expect_true (have_monotonic))	2187	if (expect_true (have_monotonic))
1908	{	2188	{
		2189	int i;
1909	ev_tstamp odiff = rtmn_diff;	2190	ev_tstamp odiff = rtmn_diff;
1910		2191
1911	mn_now = get_clock ();	2192	mn_now = get_clock ();
1912		2193
1913	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2194	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1939	ev_rt_now = ev_time ();	2220	ev_rt_now = ev_time ();
1940	mn_now = get_clock ();	2221	mn_now = get_clock ();
1941	now_floor = mn_now;	2222	now_floor = mn_now;
1942	}	2223	}
1943		2224
		2225	/* no timer adjustment, as the monotonic clock doesn't jump */
		2226	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1944	# if EV_PERIODIC_ENABLE	2227	# if EV_PERIODIC_ENABLE
1945	periodics_reschedule (EV_A);	2228	periodics_reschedule (EV_A);
1946	# endif	2229	# endif
1947	/* no timer adjustment, as the monotonic clock doesn't jump */
1948	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1949	}	2230	}
1950	else	2231	else
1951	#endif	2232	#endif
1952	{	2233	{
1953	ev_rt_now = ev_time ();	2234	ev_rt_now = ev_time ();
1954		2235
1955	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2236	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1956	{	2237	{
		2238	/* adjust timers. this is easy, as the offset is the same for all of them */
		2239	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1957	#if EV_PERIODIC_ENABLE	2240	#if EV_PERIODIC_ENABLE
1958	periodics_reschedule (EV_A);	2241	periodics_reschedule (EV_A);
1959	#endif	2242	#endif
1960	/* adjust timers. this is easy, as the offset is the same for all of them */
1961	for (i = 0; i < timercnt; ++i)
1962	{
1963	ANHE *he = timers + i + HEAP0;
1964	ANHE_w (*he)->at += ev_rt_now - mn_now;
1965	ANHE_at_cache (*he);
1966	}
1967	}	2243	}
1968		2244
1969	mn_now = ev_rt_now;	2245	mn_now = ev_rt_now;
1970	}	2246	}
1971	}	2247	}
1972		2248
1973	void	2249	void
1974	ev_ref (EV_P)
1975	{
1976	++activecnt;
1977	}
1978
1979	void
1980	ev_unref (EV_P)
1981	{
1982	--activecnt;
1983	}
1984
1985	void
1986	ev_now_update (EV_P)
1987	{
1988	time_update (EV_A_ 1e100);
1989	}
1990
1991	static int loop_done;
1992
1993	void
1994	ev_loop (EV_P_ int flags)	2250	ev_loop (EV_P_ int flags)
1995	{	2251	{
		2252	#if EV_MINIMAL < 2
		2253	++loop_depth;
		2254	#endif
		2255
		2256	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2257
1996	loop_done = EVUNLOOP_CANCEL;	2258	loop_done = EVUNLOOP_CANCEL;
1997		2259
1998	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2260	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1999		2261
2000	do	2262	do
2001	{	2263	{
2002	#if EV_VERIFY >= 2	2264	#if EV_VERIFY >= 2
2003	ev_loop_verify (EV_A);	2265	ev_loop_verify (EV_A);
…		…
2016	/* we might have forked, so queue fork handlers */	2278	/* we might have forked, so queue fork handlers */
2017	if (expect_false (postfork))	2279	if (expect_false (postfork))
2018	if (forkcnt)	2280	if (forkcnt)
2019	{	2281	{
2020	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2282	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2021	call_pending (EV_A);	2283	EV_INVOKE_PENDING;
2022	}	2284	}
2023	#endif	2285	#endif
2024		2286
2025	/* queue prepare watchers (and execute them) */	2287	/* queue prepare watchers (and execute them) */
2026	if (expect_false (preparecnt))	2288	if (expect_false (preparecnt))
2027	{	2289	{
2028	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2290	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2029	call_pending (EV_A);	2291	EV_INVOKE_PENDING;
2030	}	2292	}
		2293
		2294	if (expect_false (loop_done))
		2295	break;
2031		2296
2032	/* we might have forked, so reify kernel state if necessary */	2297	/* we might have forked, so reify kernel state if necessary */
2033	if (expect_false (postfork))	2298	if (expect_false (postfork))
2034	loop_fork (EV_A);	2299	loop_fork (EV_A);
2035		2300
…		…
2041	ev_tstamp waittime = 0.;	2306	ev_tstamp waittime = 0.;
2042	ev_tstamp sleeptime = 0.;	2307	ev_tstamp sleeptime = 0.;
2043		2308
2044	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2309	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
2045	{	2310	{
		2311	/* remember old timestamp for io_blocktime calculation */
		2312	ev_tstamp prev_mn_now = mn_now;
		2313
2046	/* update time to cancel out callback processing overhead */	2314	/* update time to cancel out callback processing overhead */
2047	time_update (EV_A_ 1e100);	2315	time_update (EV_A_ 1e100);
		2316
		2317	waittime = MAX_BLOCKTIME;
2048		2318
2049	if (timercnt)	2319	if (timercnt)
2050	{	2320	{
2051	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2321	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
2052	if (waittime > to) waittime = to;	2322	if (waittime > to) waittime = to;
…		…
2058	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2328	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2059	if (waittime > to) waittime = to;	2329	if (waittime > to) waittime = to;
2060	}	2330	}
2061	#endif	2331	#endif
2062		2332
		2333	/* don't let timeouts decrease the waittime below timeout_blocktime */
2063	if (expect_false (waittime < timeout_blocktime))	2334	if (expect_false (waittime < timeout_blocktime))
2064	waittime = timeout_blocktime;	2335	waittime = timeout_blocktime;
2065		2336
2066	sleeptime = waittime - backend_fudge;	2337	/* extra check because io_blocktime is commonly 0 */
2067
2068	if (expect_true (sleeptime > io_blocktime))	2338	if (expect_false (io_blocktime))
2069	sleeptime = io_blocktime;
2070
2071	if (sleeptime)
2072	{	2339	{
		2340	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2341
		2342	if (sleeptime > waittime - backend_fudge)
		2343	sleeptime = waittime - backend_fudge;
		2344
		2345	if (expect_true (sleeptime > 0.))
		2346	{
2073	ev_sleep (sleeptime);	2347	ev_sleep (sleeptime);
2074	waittime -= sleeptime;	2348	waittime -= sleeptime;
		2349	}
2075	}	2350	}
2076	}	2351	}
2077		2352
		2353	#if EV_MINIMAL < 2
2078	++loop_count;	2354	++loop_count;
		2355	#endif
		2356	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2079	backend_poll (EV_A_ waittime);	2357	backend_poll (EV_A_ waittime);
		2358	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2080		2359
2081	/* update ev_rt_now, do magic */	2360	/* update ev_rt_now, do magic */
2082	time_update (EV_A_ waittime + sleeptime);	2361	time_update (EV_A_ waittime + sleeptime);
2083	}	2362	}
2084		2363
…		…
2095		2374
2096	/* queue check watchers, to be executed first */	2375	/* queue check watchers, to be executed first */
2097	if (expect_false (checkcnt))	2376	if (expect_false (checkcnt))
2098	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2377	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2099		2378
2100	call_pending (EV_A);	2379	EV_INVOKE_PENDING;
2101	}	2380	}
2102	while (expect_true (	2381	while (expect_true (
2103	activecnt	2382	activecnt
2104	&& !loop_done	2383	&& !loop_done
2105	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2384	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2106	));	2385	));
2107		2386
2108	if (loop_done == EVUNLOOP_ONE)	2387	if (loop_done == EVUNLOOP_ONE)
2109	loop_done = EVUNLOOP_CANCEL;	2388	loop_done = EVUNLOOP_CANCEL;
		2389
		2390	#if EV_MINIMAL < 2
		2391	--loop_depth;
		2392	#endif
2110	}	2393	}
2111		2394
2112	void	2395	void
2113	ev_unloop (EV_P_ int how)	2396	ev_unloop (EV_P_ int how)
2114	{	2397	{
2115	loop_done = how;	2398	loop_done = how;
2116	}	2399	}
2117		2400
		2401	void
		2402	ev_ref (EV_P)
		2403	{
		2404	++activecnt;
		2405	}
		2406
		2407	void
		2408	ev_unref (EV_P)
		2409	{
		2410	--activecnt;
		2411	}
		2412
		2413	void
		2414	ev_now_update (EV_P)
		2415	{
		2416	time_update (EV_A_ 1e100);
		2417	}
		2418
		2419	void
		2420	ev_suspend (EV_P)
		2421	{
		2422	ev_now_update (EV_A);
		2423	}
		2424
		2425	void
		2426	ev_resume (EV_P)
		2427	{
		2428	ev_tstamp mn_prev = mn_now;
		2429
		2430	ev_now_update (EV_A);
		2431	timers_reschedule (EV_A_ mn_now - mn_prev);
		2432	#if EV_PERIODIC_ENABLE
		2433	/* TODO: really do this? */
		2434	periodics_reschedule (EV_A);
		2435	#endif
		2436	}
		2437
2118	/*****************************************************************************/	2438	/*****************************************************************************/
		2439	/* singly-linked list management, used when the expected list length is short */
2119		2440
2120	inline_size void	2441	inline_size void
2121	wlist_add (WL *head, WL elem)	2442	wlist_add (WL *head, WL elem)
2122	{	2443	{
2123	elem->next = *head;	2444	elem->next = *head;
…		…
2127	inline_size void	2448	inline_size void
2128	wlist_del (WL *head, WL elem)	2449	wlist_del (WL *head, WL elem)
2129	{	2450	{
2130	while (*head)	2451	while (*head)
2131	{	2452	{
2132	if (*head == elem)	2453	if (expect_true (*head == elem))
2133	{	2454	{
2134	*head = elem->next;	2455	*head = elem->next;
2135	return;	2456	break;
2136	}	2457	}
2137		2458
2138	head = &(*head)->next;	2459	head = &(*head)->next;
2139	}	2460	}
2140	}	2461	}
2141		2462
		2463	/* internal, faster, version of ev_clear_pending */
2142	inline_speed void	2464	inline_speed void
2143	clear_pending (EV_P_ W w)	2465	clear_pending (EV_P_ W w)
2144	{	2466	{
2145	if (w->pending)	2467	if (w->pending)
2146	{	2468	{
2147	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2469	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2148	w->pending = 0;	2470	w->pending = 0;
2149	}	2471	}
2150	}	2472	}
2151		2473
2152	int	2474	int
…		…
2156	int pending = w_->pending;	2478	int pending = w_->pending;
2157		2479
2158	if (expect_true (pending))	2480	if (expect_true (pending))
2159	{	2481	{
2160	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2482	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2483	p->w = (W)&pending_w;
2161	w_->pending = 0;	2484	w_->pending = 0;
2162	p->w = 0;
2163	return p->events;	2485	return p->events;
2164	}	2486	}
2165	else	2487	else
2166	return 0;	2488	return 0;
2167	}	2489	}
2168		2490
2169	inline_size void	2491	inline_size void
2170	pri_adjust (EV_P_ W w)	2492	pri_adjust (EV_P_ W w)
2171	{	2493	{
2172	int pri = w->priority;	2494	int pri = ev_priority (w);
2173	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2495	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2174	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2496	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2175	w->priority = pri;	2497	ev_set_priority (w, pri);
2176	}	2498	}
2177		2499
2178	inline_speed void	2500	inline_speed void
2179	ev_start (EV_P_ W w, int active)	2501	ev_start (EV_P_ W w, int active)
2180	{	2502	{
…		…
2199		2521
2200	if (expect_false (ev_is_active (w)))	2522	if (expect_false (ev_is_active (w)))
2201	return;	2523	return;
2202		2524
2203	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2525	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2204	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2526	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2205		2527
2206	EV_FREQUENT_CHECK;	2528	EV_FREQUENT_CHECK;
2207		2529
2208	ev_start (EV_A_ (W)w, 1);	2530	ev_start (EV_A_ (W)w, 1);
2209	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2531	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2210	wlist_add (&anfds[fd].head, (WL)w);	2532	wlist_add (&anfds[fd].head, (WL)w);
2211		2533
2212	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);	2534	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2213	w->events &= ~EV__IOFDSET;	2535	w->events &= ~EV__IOFDSET;
2214		2536
2215	EV_FREQUENT_CHECK;	2537	EV_FREQUENT_CHECK;
2216	}	2538	}
2217		2539
…		…
2279	timers [active] = timers [timercnt + HEAP0];	2601	timers [active] = timers [timercnt + HEAP0];
2280	adjustheap (timers, timercnt, active);	2602	adjustheap (timers, timercnt, active);
2281	}	2603	}
2282	}	2604	}
2283		2605
2284	EV_FREQUENT_CHECK;
2285
2286	ev_at (w) -= mn_now;	2606	ev_at (w) -= mn_now;
2287		2607
2288	ev_stop (EV_A_ (W)w);	2608	ev_stop (EV_A_ (W)w);
		2609
		2610	EV_FREQUENT_CHECK;
2289	}	2611	}
2290		2612
2291	void noinline	2613	void noinline
2292	ev_timer_again (EV_P_ ev_timer *w)	2614	ev_timer_again (EV_P_ ev_timer *w)
2293	{	2615	{
…		…
2311	}	2633	}
2312		2634
2313	EV_FREQUENT_CHECK;	2635	EV_FREQUENT_CHECK;
2314	}	2636	}
2315		2637
		2638	ev_tstamp
		2639	ev_timer_remaining (EV_P_ ev_timer *w)
		2640	{
		2641	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2642	}
		2643
2316	#if EV_PERIODIC_ENABLE	2644	#if EV_PERIODIC_ENABLE
2317	void noinline	2645	void noinline
2318	ev_periodic_start (EV_P_ ev_periodic *w)	2646	ev_periodic_start (EV_P_ ev_periodic *w)
2319	{	2647	{
2320	if (expect_false (ev_is_active (w)))	2648	if (expect_false (ev_is_active (w)))
…		…
2366	periodics [active] = periodics [periodiccnt + HEAP0];	2694	periodics [active] = periodics [periodiccnt + HEAP0];
2367	adjustheap (periodics, periodiccnt, active);	2695	adjustheap (periodics, periodiccnt, active);
2368	}	2696	}
2369	}	2697	}
2370		2698
2371	EV_FREQUENT_CHECK;
2372
2373	ev_stop (EV_A_ (W)w);	2699	ev_stop (EV_A_ (W)w);
		2700
		2701	EV_FREQUENT_CHECK;
2374	}	2702	}
2375		2703
2376	void noinline	2704	void noinline
2377	ev_periodic_again (EV_P_ ev_periodic *w)	2705	ev_periodic_again (EV_P_ ev_periodic *w)
2378	{	2706	{
…		…
2387	#endif	2715	#endif
2388		2716
2389	void noinline	2717	void noinline
2390	ev_signal_start (EV_P_ ev_signal *w)	2718	ev_signal_start (EV_P_ ev_signal *w)
2391	{	2719	{
2392	#if EV_MULTIPLICITY
2393	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2394	#endif
2395	if (expect_false (ev_is_active (w)))	2720	if (expect_false (ev_is_active (w)))
2396	return;	2721	return;
2397		2722
2398	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2723	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2399		2724
2400	evpipe_init (EV_A);	2725	#if EV_MULTIPLICITY
		2726	assert (("libev: a signal must not be attached to two different loops",
		2727	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2401		2728
2402	EV_FREQUENT_CHECK;	2729	signals [w->signum - 1].loop = EV_A;
		2730	#endif
2403		2731
		2732	EV_FREQUENT_CHECK;
		2733
		2734	#if EV_USE_SIGNALFD
		2735	if (sigfd == -2)
2404	{	2736	{
2405	#ifndef _WIN32	2737	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2406	sigset_t full, prev;	2738	if (sigfd < 0 && errno == EINVAL)
2407	sigfillset (&full);	2739	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2408	sigprocmask (SIG_SETMASK, &full, &prev);
2409	#endif
2410		2740
2411	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2741	if (sigfd >= 0)
		2742	{
		2743	fd_intern (sigfd); /* doing it twice will not hurt */
2412		2744
2413	#ifndef _WIN32	2745	sigemptyset (&sigfd_set);
2414	sigprocmask (SIG_SETMASK, &prev, 0);	2746
2415	#endif	2747	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2748	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2749	ev_io_start (EV_A_ &sigfd_w);
		2750	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2751	}
2416	}	2752	}
		2753
		2754	if (sigfd >= 0)
		2755	{
		2756	/* TODO: check .head */
		2757	sigaddset (&sigfd_set, w->signum);
		2758	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2759
		2760	signalfd (sigfd, &sigfd_set, 0);
		2761	}
		2762	#endif
2417		2763
2418	ev_start (EV_A_ (W)w, 1);	2764	ev_start (EV_A_ (W)w, 1);
2419	wlist_add (&signals [w->signum - 1].head, (WL)w);	2765	wlist_add (&signals [w->signum - 1].head, (WL)w);
2420		2766
2421	if (!((WL)w)->next)	2767	if (!((WL)w)->next)
		2768	# if EV_USE_SIGNALFD
		2769	if (sigfd < 0) /*TODO*/
		2770	# endif
2422	{	2771	{
2423	#if _WIN32	2772	# ifdef _WIN32
		2773	evpipe_init (EV_A);
		2774
2424	signal (w->signum, ev_sighandler);	2775	signal (w->signum, ev_sighandler);
2425	#else	2776	# else
2426	struct sigaction sa;	2777	struct sigaction sa;
		2778
		2779	evpipe_init (EV_A);
		2780
2427	sa.sa_handler = ev_sighandler;	2781	sa.sa_handler = ev_sighandler;
2428	sigfillset (&sa.sa_mask);	2782	sigfillset (&sa.sa_mask);
2429	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2783	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2430	sigaction (w->signum, &sa, 0);	2784	sigaction (w->signum, &sa, 0);
		2785
		2786	sigemptyset (&sa.sa_mask);
		2787	sigaddset (&sa.sa_mask, w->signum);
		2788	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2431	#endif	2789	#endif
2432	}	2790	}
2433		2791
2434	EV_FREQUENT_CHECK;	2792	EV_FREQUENT_CHECK;
2435	}	2793	}
2436		2794
2437	void noinline	2795	void noinline
…		…
2445		2803
2446	wlist_del (&signals [w->signum - 1].head, (WL)w);	2804	wlist_del (&signals [w->signum - 1].head, (WL)w);
2447	ev_stop (EV_A_ (W)w);	2805	ev_stop (EV_A_ (W)w);
2448		2806
2449	if (!signals [w->signum - 1].head)	2807	if (!signals [w->signum - 1].head)
		2808	{
		2809	#if EV_MULTIPLICITY
		2810	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2811	#endif
		2812	#if EV_USE_SIGNALFD
		2813	if (sigfd >= 0)
		2814	{
		2815	sigset_t ss;
		2816
		2817	sigemptyset (&ss);
		2818	sigaddset (&ss, w->signum);
		2819	sigdelset (&sigfd_set, w->signum);
		2820
		2821	signalfd (sigfd, &sigfd_set, 0);
		2822	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2823	}
		2824	else
		2825	#endif
2450	signal (w->signum, SIG_DFL);	2826	signal (w->signum, SIG_DFL);
		2827	}
2451		2828
2452	EV_FREQUENT_CHECK;	2829	EV_FREQUENT_CHECK;
2453	}	2830	}
2454		2831
2455	void	2832	void
…		…
2496	#define MIN_STAT_INTERVAL 0.1074891	2873	#define MIN_STAT_INTERVAL 0.1074891
2497		2874
2498	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2875	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2499		2876
2500	#if EV_USE_INOTIFY	2877	#if EV_USE_INOTIFY
2501	# define EV_INOTIFY_BUFSIZE 8192	2878
		2879	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2880	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2502		2881
2503	static void noinline	2882	static void noinline
2504	infy_add (EV_P_ ev_stat *w)	2883	infy_add (EV_P_ ev_stat *w)
2505	{	2884	{
2506	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);	2885	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);
2507		2886
2508	if (w->wd < 0)	2887	if (w->wd >= 0)
		2888	{
		2889	struct statfs sfs;
		2890
		2891	/* now local changes will be tracked by inotify, but remote changes won't */
		2892	/* unless the filesystem is known to be local, we therefore still poll */
		2893	/* also do poll on <2.6.25, but with normal frequency */
		2894
		2895	if (!fs_2625)
		2896	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2897	else if (!statfs (w->path, &sfs)
		2898	&& (sfs.f_type == 0x1373 /* devfs */
		2899	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2900	|| sfs.f_type == 0x3153464a /* jfs */
		2901	|| sfs.f_type == 0x52654973 /* reiser3 */
		2902	|| sfs.f_type == 0x01021994 /* tempfs */
		2903	|| sfs.f_type == 0x58465342 /* xfs */))
		2904	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2905	else
		2906	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2509	{	2907	}
		2908	else
		2909	{
		2910	/* can't use inotify, continue to stat */
2510	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2911	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2511	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2512		2912
2513	/* monitor some parent directory for speedup hints */	2913	/* if path is not there, monitor some parent directory for speedup hints */
2514	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2914	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2515	/* but an efficiency issue only */	2915	/* but an efficiency issue only */
2516	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2916	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2517	{	2917	{
2518	char path [4096];	2918	char path [4096];
…		…
2534	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2934	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2535	}	2935	}
2536	}	2936	}
2537		2937
2538	if (w->wd >= 0)	2938	if (w->wd >= 0)
2539	{
2540	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2939	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2541		2940
2542	/* now local changes will be tracked by inotify, but remote changes won't */	2941	/* now re-arm timer, if required */
2543	/* unless the filesystem it known to be local, we therefore still poll */	2942	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2544	/* also do poll on <2.6.25, but with normal frequency */
2545	struct statfs sfs;
2546
2547	if (fs_2625 && !statfs (w->path, &sfs))
2548	if (sfs.f_type == 0x1373 /* devfs */
2549	|| sfs.f_type == 0xEF53 /* ext2/3 */
2550	|| sfs.f_type == 0x3153464a /* jfs */
2551	|| sfs.f_type == 0x52654973 /* reiser3 */
2552	|| sfs.f_type == 0x01021994 /* tempfs */
2553	|| sfs.f_type == 0x58465342 /* xfs */)
2554	return;
2555
2556	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2557	ev_timer_again (EV_A_ &w->timer);	2943	ev_timer_again (EV_A_ &w->timer);
2558	}	2944	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2559	}	2945	}
2560		2946
2561	static void noinline	2947	static void noinline
2562	infy_del (EV_P_ ev_stat *w)	2948	infy_del (EV_P_ ev_stat *w)
2563	{	2949	{
…		…
2608		2994
2609	static void	2995	static void
2610	infy_cb (EV_P_ ev_io *w, int revents)	2996	infy_cb (EV_P_ ev_io *w, int revents)
2611	{	2997	{
2612	char buf [EV_INOTIFY_BUFSIZE];	2998	char buf [EV_INOTIFY_BUFSIZE];
2613	struct inotify_event *ev = (struct inotify_event *)buf;
2614	int ofs;	2999	int ofs;
2615	int len = read (fs_fd, buf, sizeof (buf));	3000	int len = read (fs_fd, buf, sizeof (buf));
2616		3001
2617	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3002	for (ofs = 0; ofs < len; )
		3003	{
		3004	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2618	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3005	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3006	ofs += sizeof (struct inotify_event) + ev->len;
		3007	}
		3008	}
		3009
		3010	inline_size unsigned int
		3011	ev_linux_version (void)
		3012	{
		3013	struct utsname buf;
		3014	unsigned int v;
		3015	int i;
		3016	char *p = buf.release;
		3017
		3018	if (uname (&buf))
		3019	return 0;
		3020
		3021	for (i = 3+1; --i; )
		3022	{
		3023	unsigned int c = 0;
		3024
		3025	for (;;)
		3026	{
		3027	if (*p >= '0' && *p <= '9')
		3028	c = c * 10 + *p++ - '0';
		3029	else
		3030	{
		3031	p += *p == '.';
		3032	break;
		3033	}
		3034	}
		3035
		3036	v = (v << 8) | c;
		3037	}
		3038
		3039	return v;
2619	}	3040	}
2620		3041
2621	inline_size void	3042	inline_size void
2622	check_2625 (EV_P)	3043	ev_check_2625 (EV_P)
2623	{	3044	{
2624	/* kernels < 2.6.25 are borked	3045	/* kernels < 2.6.25 are borked
2625	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3046	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2626	*/	3047	*/
2627	struct utsname buf;	3048	if (ev_linux_version () < 0x020619)
2628	int major, minor, micro;
2629
2630	if (uname (&buf))
2631	return;	3049	return;
2632		3050
2633	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2634	return;
2635
2636	if (major < 2
2637	|| (major == 2 && minor < 6)
2638	|| (major == 2 && minor == 6 && micro < 25))
2639	return;
2640
2641	fs_2625 = 1;	3051	fs_2625 = 1;
		3052	}
		3053
		3054	inline_size int
		3055	infy_newfd (void)
		3056	{
		3057	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3058	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3059	if (fd >= 0)
		3060	return fd;
		3061	#endif
		3062	return inotify_init ();
2642	}	3063	}
2643		3064
2644	inline_size void	3065	inline_size void
2645	infy_init (EV_P)	3066	infy_init (EV_P)
2646	{	3067	{
2647	if (fs_fd != -2)	3068	if (fs_fd != -2)
2648	return;	3069	return;
2649		3070
2650	fs_fd = -1;	3071	fs_fd = -1;
2651		3072
2652	check_2625 (EV_A);	3073	ev_check_2625 (EV_A);
2653		3074
2654	fs_fd = inotify_init ();	3075	fs_fd = infy_newfd ();
2655		3076
2656	if (fs_fd >= 0)	3077	if (fs_fd >= 0)
2657	{	3078	{
		3079	fd_intern (fs_fd);
2658	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3080	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2659	ev_set_priority (&fs_w, EV_MAXPRI);	3081	ev_set_priority (&fs_w, EV_MAXPRI);
2660	ev_io_start (EV_A_ &fs_w);	3082	ev_io_start (EV_A_ &fs_w);
		3083	ev_unref (EV_A);
2661	}	3084	}
2662	}	3085	}
2663		3086
2664	inline_size void	3087	inline_size void
2665	infy_fork (EV_P)	3088	infy_fork (EV_P)
…		…
2667	int slot;	3090	int slot;
2668		3091
2669	if (fs_fd < 0)	3092	if (fs_fd < 0)
2670	return;	3093	return;
2671		3094
		3095	ev_ref (EV_A);
		3096	ev_io_stop (EV_A_ &fs_w);
2672	close (fs_fd);	3097	close (fs_fd);
2673	fs_fd = inotify_init ();	3098	fs_fd = infy_newfd ();
		3099
		3100	if (fs_fd >= 0)
		3101	{
		3102	fd_intern (fs_fd);
		3103	ev_io_set (&fs_w, fs_fd, EV_READ);
		3104	ev_io_start (EV_A_ &fs_w);
		3105	ev_unref (EV_A);
		3106	}
2674		3107
2675	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3108	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2676	{	3109	{
2677	WL w_ = fs_hash [slot].head;	3110	WL w_ = fs_hash [slot].head;
2678	fs_hash [slot].head = 0;	3111	fs_hash [slot].head = 0;
…		…
2685	w->wd = -1;	3118	w->wd = -1;
2686		3119
2687	if (fs_fd >= 0)	3120	if (fs_fd >= 0)
2688	infy_add (EV_A_ w); /* re-add, no matter what */	3121	infy_add (EV_A_ w); /* re-add, no matter what */
2689	else	3122	else
		3123	{
		3124	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3125	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2690	ev_timer_again (EV_A_ &w->timer);	3126	ev_timer_again (EV_A_ &w->timer);
		3127	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3128	}
2691	}	3129	}
2692	}	3130	}
2693	}	3131	}
2694		3132
2695	#endif	3133	#endif
…		…
2712	static void noinline	3150	static void noinline
2713	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3151	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2714	{	3152	{
2715	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3153	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2716		3154
2717	/* we copy this here each the time so that */	3155	ev_statdata prev = w->attr;
2718	/* prev has the old value when the callback gets invoked */
2719	w->prev = w->attr;
2720	ev_stat_stat (EV_A_ w);	3156	ev_stat_stat (EV_A_ w);
2721		3157
2722	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3158	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2723	if (	3159	if (
2724	w->prev.st_dev != w->attr.st_dev	3160	prev.st_dev != w->attr.st_dev
2725	|| w->prev.st_ino != w->attr.st_ino	3161	|| prev.st_ino != w->attr.st_ino
2726	|| w->prev.st_mode != w->attr.st_mode	3162	|| prev.st_mode != w->attr.st_mode
2727	|| w->prev.st_nlink != w->attr.st_nlink	3163	|| prev.st_nlink != w->attr.st_nlink
2728	|| w->prev.st_uid != w->attr.st_uid	3164	|| prev.st_uid != w->attr.st_uid
2729	|| w->prev.st_gid != w->attr.st_gid	3165	|| prev.st_gid != w->attr.st_gid
2730	|| w->prev.st_rdev != w->attr.st_rdev	3166	|| prev.st_rdev != w->attr.st_rdev
2731	|| w->prev.st_size != w->attr.st_size	3167	|| prev.st_size != w->attr.st_size
2732	|| w->prev.st_atime != w->attr.st_atime	3168	|| prev.st_atime != w->attr.st_atime
2733	|| w->prev.st_mtime != w->attr.st_mtime	3169	|| prev.st_mtime != w->attr.st_mtime
2734	|| w->prev.st_ctime != w->attr.st_ctime	3170	|| prev.st_ctime != w->attr.st_ctime
2735	) {	3171	) {
		3172	/* we only update w->prev on actual differences */
		3173	/* in case we test more often than invoke the callback, */
		3174	/* to ensure that prev is always different to attr */
		3175	w->prev = prev;
		3176
2736	#if EV_USE_INOTIFY	3177	#if EV_USE_INOTIFY
2737	if (fs_fd >= 0)	3178	if (fs_fd >= 0)
2738	{	3179	{
2739	infy_del (EV_A_ w);	3180	infy_del (EV_A_ w);
2740	infy_add (EV_A_ w);	3181	infy_add (EV_A_ w);
…		…
2765		3206
2766	if (fs_fd >= 0)	3207	if (fs_fd >= 0)
2767	infy_add (EV_A_ w);	3208	infy_add (EV_A_ w);
2768	else	3209	else
2769	#endif	3210	#endif
		3211	{
2770	ev_timer_again (EV_A_ &w->timer);	3212	ev_timer_again (EV_A_ &w->timer);
		3213	ev_unref (EV_A);
		3214	}
2771		3215
2772	ev_start (EV_A_ (W)w, 1);	3216	ev_start (EV_A_ (W)w, 1);
2773		3217
2774	EV_FREQUENT_CHECK;	3218	EV_FREQUENT_CHECK;
2775	}	3219	}
…		…
2784	EV_FREQUENT_CHECK;	3228	EV_FREQUENT_CHECK;
2785		3229
2786	#if EV_USE_INOTIFY	3230	#if EV_USE_INOTIFY
2787	infy_del (EV_A_ w);	3231	infy_del (EV_A_ w);
2788	#endif	3232	#endif
		3233
		3234	if (ev_is_active (&w->timer))
		3235	{
		3236	ev_ref (EV_A);
2789	ev_timer_stop (EV_A_ &w->timer);	3237	ev_timer_stop (EV_A_ &w->timer);
		3238	}
2790		3239
2791	ev_stop (EV_A_ (W)w);	3240	ev_stop (EV_A_ (W)w);
2792		3241
2793	EV_FREQUENT_CHECK;	3242	EV_FREQUENT_CHECK;
2794	}	3243	}
…		…
2935	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3384	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2936	{	3385	{
2937	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3386	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2938		3387
2939	{	3388	{
2940	struct ev_loop *loop = w->other;	3389	EV_P = w->other;
2941		3390
2942	while (fdchangecnt)	3391	while (fdchangecnt)
2943	{	3392	{
2944	fd_reify (EV_A);	3393	fd_reify (EV_A);
2945	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3394	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2953	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3402	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2954		3403
2955	ev_embed_stop (EV_A_ w);	3404	ev_embed_stop (EV_A_ w);
2956		3405
2957	{	3406	{
2958	struct ev_loop *loop = w->other;	3407	EV_P = w->other;
2959		3408
2960	ev_loop_fork (EV_A);	3409	ev_loop_fork (EV_A);
2961	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3410	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2962	}	3411	}
2963		3412
…		…
2977	{	3426	{
2978	if (expect_false (ev_is_active (w)))	3427	if (expect_false (ev_is_active (w)))
2979	return;	3428	return;
2980		3429
2981	{	3430	{
2982	struct ev_loop *loop = w->other;	3431	EV_P = w->other;
2983	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3432	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2984	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3433	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2985	}	3434	}
2986		3435
2987	EV_FREQUENT_CHECK;	3436	EV_FREQUENT_CHECK;
…		…
3014		3463
3015	ev_io_stop (EV_A_ &w->io);	3464	ev_io_stop (EV_A_ &w->io);
3016	ev_prepare_stop (EV_A_ &w->prepare);	3465	ev_prepare_stop (EV_A_ &w->prepare);
3017	ev_fork_stop (EV_A_ &w->fork);	3466	ev_fork_stop (EV_A_ &w->fork);
3018		3467
		3468	ev_stop (EV_A_ (W)w);
		3469
3019	EV_FREQUENT_CHECK;	3470	EV_FREQUENT_CHECK;
3020	}	3471	}
3021	#endif	3472	#endif
3022		3473
3023	#if EV_FORK_ENABLE	3474	#if EV_FORK_ENABLE
…		…
3099		3550
3100	void	3551	void
3101	ev_async_send (EV_P_ ev_async *w)	3552	ev_async_send (EV_P_ ev_async *w)
3102	{	3553	{
3103	w->sent = 1;	3554	w->sent = 1;
3104	evpipe_write (EV_A_ &gotasync);	3555	evpipe_write (EV_A_ &async_pending);
3105	}	3556	}
3106	#endif	3557	#endif
3107		3558
3108	/*****************************************************************************/	3559	/*****************************************************************************/
3109		3560
…		…
3173	}	3624	}
3174	}	3625	}
3175		3626
3176	/*****************************************************************************/	3627	/*****************************************************************************/
3177		3628
3178	#if 0	3629	#if EV_WALK_ENABLE
3179	void	3630	void
3180	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	3631	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3181	{	3632	{
3182	int i, j;	3633	int i, j;
3183	ev_watcher_list *wl, *wn;	3634	ev_watcher_list *wl, *wn;
…		…
3199	#if EV_USE_INOTIFY	3650	#if EV_USE_INOTIFY
3200	if (ev_cb ((ev_io *)wl) == infy_cb)	3651	if (ev_cb ((ev_io *)wl) == infy_cb)
3201	;	3652	;
3202	else	3653	else
3203	#endif	3654	#endif
3204	if ((ev_io *)wl != &pipeev)	3655	if ((ev_io *)wl != &pipe_w)
3205	if (types & EV_IO)	3656	if (types & EV_IO)
3206	cb (EV_A_ EV_IO, wl);	3657	cb (EV_A_ EV_IO, wl);
3207		3658
3208	wl = wn;	3659	wl = wn;
3209	}	3660	}
…		…
3258	if (types & EV_CHECK)	3709	if (types & EV_CHECK)
3259	for (i = checkcnt; i--; )	3710	for (i = checkcnt; i--; )
3260	cb (EV_A_ EV_CHECK, checks [i]);	3711	cb (EV_A_ EV_CHECK, checks [i]);
3261		3712
3262	if (types & EV_SIGNAL)	3713	if (types & EV_SIGNAL)
3263	for (i = 0; i < signalmax; ++i)	3714	for (i = 0; i < EV_NSIG - 1; ++i)
3264	for (wl = signals [i].head; wl; )	3715	for (wl = signals [i].head; wl; )
3265	{	3716	{
3266	wn = wl->next;	3717	wn = wl->next;
3267	cb (EV_A_ EV_SIGNAL, wl);	3718	cb (EV_A_ EV_SIGNAL, wl);
3268	wl = wn;	3719	wl = wn;

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