ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.233 by root, Tue May 6 23:34:16 2008 UTC vs.
Revision 1.317 by root, Sat Nov 14 00:15:21 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__ >= 7))
		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	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		408	# include <stdint.h>
		409	# ifndef SFD_NONBLOCK
		410	# define SFD_NONBLOCK O_NONBLOCK
		411	# endif
		412	# ifndef SFD_CLOEXEC
		413	# ifdef O_CLOEXEC
		414	# define SFD_CLOEXEC O_CLOEXEC
		415	# else
		416	# define SFD_CLOEXEC 02000000
		417	# endif
		418	# endif
		419	# ifdef __cplusplus
		420	extern "C" {
		421	# endif
		422	int signalfd (int fd, const sigset_t *mask, int flags);
		423
		424	struct signalfd_siginfo
		425	{
		426	uint32_t ssi_signo;
		427	char pad[128 - sizeof (uint32_t)];
		428	};
		429	# ifdef __cplusplus
		430	}
		431	# endif
		432	#endif
		433
		434
283	/**/	435	/**/
		436
		437	#if EV_VERIFY >= 3
		438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		439	#else
		440	# define EV_FREQUENT_CHECK do { } while (0)
		441	#endif
284		442
285	/*	443	/*
286	* This is used to avoid floating point rounding problems.	444	* This is used to avoid floating point rounding problems.
287	* It is added to ev_rt_now when scheduling periodics	445	* It is added to ev_rt_now when scheduling periodics
288	* to ensure progress, time-wise, even when rounding	446	* to ensure progress, time-wise, even when rounding
…		…
292	*/	450	*/
293	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	451	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
294		452
295	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	453	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
296	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	454	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
297	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
298		455
299	#if __GNUC__ >= 4	456	#if __GNUC__ >= 4
300	# define expect(expr,value) __builtin_expect ((expr),(value))	457	# define expect(expr,value) __builtin_expect ((expr),(value))
301	# define noinline __attribute__ ((noinline))	458	# define noinline __attribute__ ((noinline))
302	#else	459	#else
…		…
315	# define inline_speed static noinline	472	# define inline_speed static noinline
316	#else	473	#else
317	# define inline_speed static inline	474	# define inline_speed static inline
318	#endif	475	#endif
319		476
320	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	477	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		478
		479	#if EV_MINPRI == EV_MAXPRI
		480	# define ABSPRI(w) (((W)w), 0)
		481	#else
321	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	482	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		483	#endif
322		484
323	#define EMPTY /* required for microsofts broken pseudo-c compiler */	485	#define EMPTY /* required for microsofts broken pseudo-c compiler */
324	#define EMPTY2(a,b) /* used to suppress some warnings */	486	#define EMPTY2(a,b) /* used to suppress some warnings */
325		487
326	typedef ev_watcher *W;	488	typedef ev_watcher *W;
…		…
328	typedef ev_watcher_time *WT;	490	typedef ev_watcher_time *WT;
329		491
330	#define ev_active(w) ((W)(w))->active	492	#define ev_active(w) ((W)(w))->active
331	#define ev_at(w) ((WT)(w))->at	493	#define ev_at(w) ((WT)(w))->at
332		494
333	#if EV_USE_MONOTONIC	495	#if EV_USE_REALTIME
334	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	496	/* 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 */	497	/* giving it a reasonably high chance of working on typical architetcures */
		498	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		499	#endif
		500
		501	#if EV_USE_MONOTONIC
336	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	502	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		503	#endif
		504
		505	#ifndef EV_FD_TO_WIN32_HANDLE
		506	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		507	#endif
		508	#ifndef EV_WIN32_HANDLE_TO_FD
		509	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
		510	#endif
		511	#ifndef EV_WIN32_CLOSE_FD
		512	# define EV_WIN32_CLOSE_FD(fd) close (fd)
337	#endif	513	#endif
338		514
339	#ifdef _WIN32	515	#ifdef _WIN32
340	# include "ev_win32.c"	516	# include "ev_win32.c"
341	#endif	517	#endif
…		…
349	{	525	{
350	syserr_cb = cb;	526	syserr_cb = cb;
351	}	527	}
352		528
353	static void noinline	529	static void noinline
354	syserr (const char *msg)	530	ev_syserr (const char *msg)
355	{	531	{
356	if (!msg)	532	if (!msg)
357	msg = "(libev) system error";	533	msg = "(libev) system error";
358		534
359	if (syserr_cb)	535	if (syserr_cb)
…		…
405	#define ev_malloc(size) ev_realloc (0, (size))	581	#define ev_malloc(size) ev_realloc (0, (size))
406	#define ev_free(ptr) ev_realloc ((ptr), 0)	582	#define ev_free(ptr) ev_realloc ((ptr), 0)
407		583
408	/*****************************************************************************/	584	/*****************************************************************************/
409		585
		586	/* set in reify when reification needed */
		587	#define EV_ANFD_REIFY 1
		588
		589	/* file descriptor info structure */
410	typedef struct	590	typedef struct
411	{	591	{
412	WL head;	592	WL head;
413	unsigned char events;	593	unsigned char events; /* the events watched for */
		594	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
		595	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
414	unsigned char reify;	596	unsigned char unused;
		597	#if EV_USE_EPOLL
		598	unsigned int egen; /* generation counter to counter epoll bugs */
		599	#endif
415	#if EV_SELECT_IS_WINSOCKET	600	#if EV_SELECT_IS_WINSOCKET
416	SOCKET handle;	601	SOCKET handle;
417	#endif	602	#endif
418	} ANFD;	603	} ANFD;
419		604
		605	/* stores the pending event set for a given watcher */
420	typedef struct	606	typedef struct
421	{	607	{
422	W w;	608	W w;
423	int events;	609	int events; /* the pending event set for the given watcher */
424	} ANPENDING;	610	} ANPENDING;
425		611
426	#if EV_USE_INOTIFY	612	#if EV_USE_INOTIFY
		613	/* hash table entry per inotify-id */
427	typedef struct	614	typedef struct
428	{	615	{
429	WL head;	616	WL head;
430	} ANFS;	617	} ANFS;
		618	#endif
		619
		620	/* Heap Entry */
		621	#if EV_HEAP_CACHE_AT
		622	/* a heap element */
		623	typedef struct {
		624	ev_tstamp at;
		625	WT w;
		626	} ANHE;
		627
		628	#define ANHE_w(he) (he).w /* access watcher, read-write */
		629	#define ANHE_at(he) (he).at /* access cached at, read-only */
		630	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		631	#else
		632	/* a heap element */
		633	typedef WT ANHE;
		634
		635	#define ANHE_w(he) (he)
		636	#define ANHE_at(he) (he)->at
		637	#define ANHE_at_cache(he)
431	#endif	638	#endif
432		639
433	#if EV_MULTIPLICITY	640	#if EV_MULTIPLICITY
434		641
435	struct ev_loop	642	struct ev_loop
…		…
454		661
455	static int ev_default_loop_ptr;	662	static int ev_default_loop_ptr;
456		663
457	#endif	664	#endif
458		665
		666	#if EV_MINIMAL < 2
		667	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		668	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		669	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		670	#else
		671	# define EV_RELEASE_CB (void)0
		672	# define EV_ACQUIRE_CB (void)0
		673	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		674	#endif
		675
		676	#define EVUNLOOP_RECURSE 0x80
		677
459	/*****************************************************************************/	678	/*****************************************************************************/
460		679
		680	#ifndef EV_HAVE_EV_TIME
461	ev_tstamp	681	ev_tstamp
462	ev_time (void)	682	ev_time (void)
463	{	683	{
464	#if EV_USE_REALTIME	684	#if EV_USE_REALTIME
		685	if (expect_true (have_realtime))
		686	{
465	struct timespec ts;	687	struct timespec ts;
466	clock_gettime (CLOCK_REALTIME, &ts);	688	clock_gettime (CLOCK_REALTIME, &ts);
467	return ts.tv_sec + ts.tv_nsec * 1e-9;	689	return ts.tv_sec + ts.tv_nsec * 1e-9;
468	#else	690	}
		691	#endif
		692
469	struct timeval tv;	693	struct timeval tv;
470	gettimeofday (&tv, 0);	694	gettimeofday (&tv, 0);
471	return tv.tv_sec + tv.tv_usec * 1e-6;	695	return tv.tv_sec + tv.tv_usec * 1e-6;
472	#endif
473	}	696	}
		697	#endif
474		698
475	ev_tstamp inline_size	699	inline_size ev_tstamp
476	get_clock (void)	700	get_clock (void)
477	{	701	{
478	#if EV_USE_MONOTONIC	702	#if EV_USE_MONOTONIC
479	if (expect_true (have_monotonic))	703	if (expect_true (have_monotonic))
480	{	704	{
…		…
513	struct timeval tv;	737	struct timeval tv;
514		738
515	tv.tv_sec = (time_t)delay;	739	tv.tv_sec = (time_t)delay;
516	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	740	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
517		741
		742	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		743	/* something not guaranteed by newer posix versions, but guaranteed */
		744	/* by older ones */
518	select (0, 0, 0, 0, &tv);	745	select (0, 0, 0, 0, &tv);
519	#endif	746	#endif
520	}	747	}
521	}	748	}
522		749
523	/*****************************************************************************/	750	/*****************************************************************************/
524		751
525	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	752	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
526		753
527	int inline_size	754	/* find a suitable new size for the given array, */
		755	/* hopefully by rounding to a ncie-to-malloc size */
		756	inline_size int
528	array_nextsize (int elem, int cur, int cnt)	757	array_nextsize (int elem, int cur, int cnt)
529	{	758	{
530	int ncur = cur + 1;	759	int ncur = cur + 1;
531		760
532	do	761	do
…		…
549	array_realloc (int elem, void *base, int *cur, int cnt)	778	array_realloc (int elem, void *base, int *cur, int cnt)
550	{	779	{
551	*cur = array_nextsize (elem, *cur, cnt);	780	*cur = array_nextsize (elem, *cur, cnt);
552	return ev_realloc (base, elem * *cur);	781	return ev_realloc (base, elem * *cur);
553	}	782	}
		783
		784	#define array_init_zero(base,count) \
		785	memset ((void *)(base), 0, sizeof (*(base)) * (count))
554		786
555	#define array_needsize(type,base,cur,cnt,init) \	787	#define array_needsize(type,base,cur,cnt,init) \
556	if (expect_false ((cnt) > (cur))) \	788	if (expect_false ((cnt) > (cur))) \
557	{ \	789	{ \
558	int ocur_ = (cur); \	790	int ocur_ = (cur); \
…		…
570	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	802	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
571	}	803	}
572	#endif	804	#endif
573		805
574	#define array_free(stem, idx) \	806	#define array_free(stem, idx) \
575	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	807	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
576		808
577	/*****************************************************************************/	809	/*****************************************************************************/
		810
		811	/* dummy callback for pending events */
		812	static void noinline
		813	pendingcb (EV_P_ ev_prepare *w, int revents)
		814	{
		815	}
578		816
579	void noinline	817	void noinline
580	ev_feed_event (EV_P_ void *w, int revents)	818	ev_feed_event (EV_P_ void *w, int revents)
581	{	819	{
582	W w_ = (W)w;	820	W w_ = (W)w;
…		…
591	pendings [pri][w_->pending - 1].w = w_;	829	pendings [pri][w_->pending - 1].w = w_;
592	pendings [pri][w_->pending - 1].events = revents;	830	pendings [pri][w_->pending - 1].events = revents;
593	}	831	}
594	}	832	}
595		833
596	void inline_speed	834	inline_speed void
		835	feed_reverse (EV_P_ W w)
		836	{
		837	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		838	rfeeds [rfeedcnt++] = w;
		839	}
		840
		841	inline_size void
		842	feed_reverse_done (EV_P_ int revents)
		843	{
		844	do
		845	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		846	while (rfeedcnt);
		847	}
		848
		849	inline_speed void
597	queue_events (EV_P_ W *events, int eventcnt, int type)	850	queue_events (EV_P_ W *events, int eventcnt, int type)
598	{	851	{
599	int i;	852	int i;
600		853
601	for (i = 0; i < eventcnt; ++i)	854	for (i = 0; i < eventcnt; ++i)
602	ev_feed_event (EV_A_ events [i], type);	855	ev_feed_event (EV_A_ events [i], type);
603	}	856	}
604		857
605	/*****************************************************************************/	858	/*****************************************************************************/
606		859
607	void inline_size	860	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)	861	fd_event_nc (EV_P_ int fd, int revents)
622	{	862	{
623	ANFD *anfd = anfds + fd;	863	ANFD *anfd = anfds + fd;
624	ev_io *w;	864	ev_io *w;
625		865
626	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	866	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
630	if (ev)	870	if (ev)
631	ev_feed_event (EV_A_ (W)w, ev);	871	ev_feed_event (EV_A_ (W)w, ev);
632	}	872	}
633	}	873	}
634		874
		875	/* do not submit kernel events for fds that have reify set */
		876	/* because that means they changed while we were polling for new events */
		877	inline_speed void
		878	fd_event (EV_P_ int fd, int revents)
		879	{
		880	ANFD *anfd = anfds + fd;
		881
		882	if (expect_true (!anfd->reify))
		883	fd_event_nc (EV_A_ fd, revents);
		884	}
		885
635	void	886	void
636	ev_feed_fd_event (EV_P_ int fd, int revents)	887	ev_feed_fd_event (EV_P_ int fd, int revents)
637	{	888	{
638	if (fd >= 0 && fd < anfdmax)	889	if (fd >= 0 && fd < anfdmax)
639	fd_event (EV_A_ fd, revents);	890	fd_event_nc (EV_A_ fd, revents);
640	}	891	}
641		892
642	void inline_size	893	/* make sure the external fd watch events are in-sync */
		894	/* with the kernel/libev internal state */
		895	inline_size void
643	fd_reify (EV_P)	896	fd_reify (EV_P)
644	{	897	{
645	int i;	898	int i;
646		899
647	for (i = 0; i < fdchangecnt; ++i)	900	for (i = 0; i < fdchangecnt; ++i)
…		…
656	events |= (unsigned char)w->events;	909	events |= (unsigned char)w->events;
657		910
658	#if EV_SELECT_IS_WINSOCKET	911	#if EV_SELECT_IS_WINSOCKET
659	if (events)	912	if (events)
660	{	913	{
661	unsigned long argp;	914	unsigned long arg;
662	#ifdef EV_FD_TO_WIN32_HANDLE
663	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	915	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
664	#else
665	anfd->handle = _get_osfhandle (fd);
666	#endif
667	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	916	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
668	}	917	}
669	#endif	918	#endif
670		919
671	{	920	{
672	unsigned char o_events = anfd->events;	921	unsigned char o_events = anfd->events;
673	unsigned char o_reify = anfd->reify;	922	unsigned char o_reify = anfd->reify;
674		923
675	anfd->reify = 0;	924	anfd->reify = 0;
676	anfd->events = events;	925	anfd->events = events;
677		926
678	if (o_events != events || o_reify & EV_IOFDSET)	927	if (o_events != events || o_reify & EV__IOFDSET)
679	backend_modify (EV_A_ fd, o_events, events);	928	backend_modify (EV_A_ fd, o_events, events);
680	}	929	}
681	}	930	}
682		931
683	fdchangecnt = 0;	932	fdchangecnt = 0;
684	}	933	}
685		934
686	void inline_size	935	/* something about the given fd changed */
		936	inline_size void
687	fd_change (EV_P_ int fd, int flags)	937	fd_change (EV_P_ int fd, int flags)
688	{	938	{
689	unsigned char reify = anfds [fd].reify;	939	unsigned char reify = anfds [fd].reify;
690	anfds [fd].reify |= flags;	940	anfds [fd].reify |= flags;
691		941
…		…
695	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	945	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
696	fdchanges [fdchangecnt - 1] = fd;	946	fdchanges [fdchangecnt - 1] = fd;
697	}	947	}
698	}	948	}
699		949
700	void inline_speed	950	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		951	inline_speed void
701	fd_kill (EV_P_ int fd)	952	fd_kill (EV_P_ int fd)
702	{	953	{
703	ev_io *w;	954	ev_io *w;
704		955
705	while ((w = (ev_io *)anfds [fd].head))	956	while ((w = (ev_io *)anfds [fd].head))
…		…
707	ev_io_stop (EV_A_ w);	958	ev_io_stop (EV_A_ w);
708	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	959	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
709	}	960	}
710	}	961	}
711		962
712	int inline_size	963	/* check whether the given fd is atcually valid, for error recovery */
		964	inline_size int
713	fd_valid (int fd)	965	fd_valid (int fd)
714	{	966	{
715	#ifdef _WIN32	967	#ifdef _WIN32
716	return _get_osfhandle (fd) != -1;	968	return _get_osfhandle (fd) != -1;
717	#else	969	#else
…		…
725	{	977	{
726	int fd;	978	int fd;
727		979
728	for (fd = 0; fd < anfdmax; ++fd)	980	for (fd = 0; fd < anfdmax; ++fd)
729	if (anfds [fd].events)	981	if (anfds [fd].events)
730	if (!fd_valid (fd) == -1 && errno == EBADF)	982	if (!fd_valid (fd) && errno == EBADF)
731	fd_kill (EV_A_ fd);	983	fd_kill (EV_A_ fd);
732	}	984	}
733		985
734	/* called on ENOMEM in select/poll to kill some fds and retry */	986	/* called on ENOMEM in select/poll to kill some fds and retry */
735	static void noinline	987	static void noinline
…		…
739		991
740	for (fd = anfdmax; fd--; )	992	for (fd = anfdmax; fd--; )
741	if (anfds [fd].events)	993	if (anfds [fd].events)
742	{	994	{
743	fd_kill (EV_A_ fd);	995	fd_kill (EV_A_ fd);
744	return;	996	break;
745	}	997	}
746	}	998	}
747		999
748	/* usually called after fork if backend needs to re-arm all fds from scratch */	1000	/* usually called after fork if backend needs to re-arm all fds from scratch */
749	static void noinline	1001	static void noinline
…		…
753		1005
754	for (fd = 0; fd < anfdmax; ++fd)	1006	for (fd = 0; fd < anfdmax; ++fd)
755	if (anfds [fd].events)	1007	if (anfds [fd].events)
756	{	1008	{
757	anfds [fd].events = 0;	1009	anfds [fd].events = 0;
		1010	anfds [fd].emask = 0;
758	fd_change (EV_A_ fd, EV_IOFDSET | 1);	1011	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
759	}	1012	}
760	}	1013	}
761		1014
762	/*****************************************************************************/	1015	/*****************************************************************************/
763		1016
		1017	/*
		1018	* the heap functions want a real array index. array index 0 uis guaranteed to not
		1019	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		1020	* the branching factor of the d-tree.
		1021	*/
		1022
		1023	/*
		1024	* at the moment we allow libev the luxury of two heaps,
		1025	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
		1026	* which is more cache-efficient.
		1027	* the difference is about 5% with 50000+ watchers.
		1028	*/
		1029	#if EV_USE_4HEAP
		1030
		1031	#define DHEAP 4
		1032	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		1033	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		1034	#define UPHEAP_DONE(p,k) ((p) == (k))
		1035
		1036	/* away from the root */
		1037	inline_speed void
		1038	downheap (ANHE *heap, int N, int k)
		1039	{
		1040	ANHE he = heap [k];
		1041	ANHE *E = heap + N + HEAP0;
		1042
		1043	for (;;)
		1044	{
		1045	ev_tstamp minat;
		1046	ANHE *minpos;
		1047	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
		1048
		1049	/* find minimum child */
		1050	if (expect_true (pos + DHEAP - 1 < E))
		1051	{
		1052	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		1053	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		1054	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		1055	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		1056	}
		1057	else if (pos < E)
		1058	{
		1059	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		1060	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		1061	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		1062	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		1063	}
		1064	else
		1065	break;
		1066
		1067	if (ANHE_at (he) <= minat)
		1068	break;
		1069
		1070	heap [k] = *minpos;
		1071	ev_active (ANHE_w (*minpos)) = k;
		1072
		1073	k = minpos - heap;
		1074	}
		1075
		1076	heap [k] = he;
		1077	ev_active (ANHE_w (he)) = k;
		1078	}
		1079
		1080	#else /* 4HEAP */
		1081
		1082	#define HEAP0 1
		1083	#define HPARENT(k) ((k) >> 1)
		1084	#define UPHEAP_DONE(p,k) (!(p))
		1085
		1086	/* away from the root */
		1087	inline_speed void
		1088	downheap (ANHE *heap, int N, int k)
		1089	{
		1090	ANHE he = heap [k];
		1091
		1092	for (;;)
		1093	{
		1094	int c = k << 1;
		1095
		1096	if (c >= N + HEAP0)
		1097	break;
		1098
		1099	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
		1100	? 1 : 0;
		1101
		1102	if (ANHE_at (he) <= ANHE_at (heap [c]))
		1103	break;
		1104
		1105	heap [k] = heap [c];
		1106	ev_active (ANHE_w (heap [k])) = k;
		1107
		1108	k = c;
		1109	}
		1110
		1111	heap [k] = he;
		1112	ev_active (ANHE_w (he)) = k;
		1113	}
		1114	#endif
		1115
764	/* towards the root */	1116	/* towards the root */
765	void inline_speed	1117	inline_speed void
766	upheap (WT *heap, int k)	1118	upheap (ANHE *heap, int k)
767	{	1119	{
768	WT w = heap [k];	1120	ANHE he = heap [k];
769		1121
770	for (;;)	1122	for (;;)
771	{	1123	{
772	int p = k >> 1;	1124	int p = HPARENT (k);
773		1125
774	/* maybe we could use a dummy element at heap [0]? */	1126	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
775	if (!p || heap [p]->at <= w->at)
776	break;	1127	break;
777		1128
778	heap [k] = heap [p];	1129	heap [k] = heap [p];
779	ev_active (heap [k]) = k;	1130	ev_active (ANHE_w (heap [k])) = k;
780	k = p;	1131	k = p;
781	}	1132	}
782		1133
783	heap [k] = w;	1134	heap [k] = he;
784	ev_active (heap [k]) = k;	1135	ev_active (ANHE_w (he)) = k;
785	}	1136	}
786		1137
787	/* away from the root */	1138	/* move an element suitably so it is in a correct place */
788	void inline_speed	1139	inline_size void
789	downheap (WT *heap, int N, int k)
790	{
791	WT w = heap [k];
792
793	for (;;)
794	{
795	int c = k << 1;
796
797	if (c > N)
798	break;
799
800	c += c < N && heap [c]->at > heap [c + 1]->at
801	? 1 : 0;
802
803	if (w->at <= heap [c]->at)
804	break;
805
806	heap [k] = heap [c];
807	ev_active (heap [k]) = k;
808
809	k = c;
810	}
811
812	heap [k] = w;
813	ev_active (heap [k]) = k;
814	}
815
816	void inline_size
817	adjustheap (WT *heap, int N, int k)	1140	adjustheap (ANHE *heap, int N, int k)
818	{	1141	{
		1142	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
819	upheap (heap, k);	1143	upheap (heap, k);
		1144	else
820	downheap (heap, N, k);	1145	downheap (heap, N, k);
		1146	}
		1147
		1148	/* rebuild the heap: this function is used only once and executed rarely */
		1149	inline_size void
		1150	reheap (ANHE *heap, int N)
		1151	{
		1152	int i;
		1153
		1154	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		1155	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		1156	for (i = 0; i < N; ++i)
		1157	upheap (heap, i + HEAP0);
821	}	1158	}
822		1159
823	/*****************************************************************************/	1160	/*****************************************************************************/
824		1161
		1162	/* associate signal watchers to a signal signal */
825	typedef struct	1163	typedef struct
826	{	1164	{
		1165	EV_ATOMIC_T pending;
		1166	#if EV_MULTIPLICITY
		1167	EV_P;
		1168	#endif
827	WL head;	1169	WL head;
828	EV_ATOMIC_T gotsig;
829	} ANSIG;	1170	} ANSIG;
830		1171
831	static ANSIG *signals;	1172	static ANSIG signals [EV_NSIG - 1];
832	static int signalmax;
833
834	static EV_ATOMIC_T gotsig;
835
836	void inline_size
837	signals_init (ANSIG *base, int count)
838	{
839	while (count--)
840	{
841	base->head = 0;
842	base->gotsig = 0;
843
844	++base;
845	}
846	}
847		1173
848	/*****************************************************************************/	1174	/*****************************************************************************/
849		1175
850	void inline_speed	1176	/* used to prepare libev internal fd's */
		1177	/* this is not fork-safe */
		1178	inline_speed void
851	fd_intern (int fd)	1179	fd_intern (int fd)
852	{	1180	{
853	#ifdef _WIN32	1181	#ifdef _WIN32
854	int arg = 1;	1182	unsigned long arg = 1;
855	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1183	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
856	#else	1184	#else
857	fcntl (fd, F_SETFD, FD_CLOEXEC);	1185	fcntl (fd, F_SETFD, FD_CLOEXEC);
858	fcntl (fd, F_SETFL, O_NONBLOCK);	1186	fcntl (fd, F_SETFL, O_NONBLOCK);
859	#endif	1187	#endif
860	}	1188	}
861		1189
862	static void noinline	1190	static void noinline
863	evpipe_init (EV_P)	1191	evpipe_init (EV_P)
864	{	1192	{
865	if (!ev_is_active (&pipeev))	1193	if (!ev_is_active (&pipe_w))
866	{	1194	{
867	#if EV_USE_EVENTFD	1195	#if EV_USE_EVENTFD
		1196	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1197	if (evfd < 0 && errno == EINVAL)
868	if ((evfd = eventfd (0, 0)) >= 0)	1198	evfd = eventfd (0, 0);
		1199
		1200	if (evfd >= 0)
869	{	1201	{
870	evpipe [0] = -1;	1202	evpipe [0] = -1;
871	fd_intern (evfd);	1203	fd_intern (evfd); /* doing it twice doesn't hurt */
872	ev_io_set (&pipeev, evfd, EV_READ);	1204	ev_io_set (&pipe_w, evfd, EV_READ);
873	}	1205	}
874	else	1206	else
875	#endif	1207	#endif
876	{	1208	{
877	while (pipe (evpipe))	1209	while (pipe (evpipe))
878	syserr ("(libev) error creating signal/async pipe");	1210	ev_syserr ("(libev) error creating signal/async pipe");
879		1211
880	fd_intern (evpipe [0]);	1212	fd_intern (evpipe [0]);
881	fd_intern (evpipe [1]);	1213	fd_intern (evpipe [1]);
882	ev_io_set (&pipeev, evpipe [0], EV_READ);	1214	ev_io_set (&pipe_w, evpipe [0], EV_READ);
883	}	1215	}
884		1216
885	ev_io_start (EV_A_ &pipeev);	1217	ev_io_start (EV_A_ &pipe_w);
886	ev_unref (EV_A); /* watcher should not keep loop alive */	1218	ev_unref (EV_A); /* watcher should not keep loop alive */
887	}	1219	}
888	}	1220	}
889		1221
890	void inline_size	1222	inline_size void
891	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1223	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
892	{	1224	{
893	if (!*flag)	1225	if (!*flag)
894	{	1226	{
895	int old_errno = errno; /* save errno because write might clobber it */	1227	int old_errno = errno; /* save errno because write might clobber it */
…		…
908		1240
909	errno = old_errno;	1241	errno = old_errno;
910	}	1242	}
911	}	1243	}
912		1244
		1245	/* called whenever the libev signal pipe */
		1246	/* got some events (signal, async) */
913	static void	1247	static void
914	pipecb (EV_P_ ev_io *iow, int revents)	1248	pipecb (EV_P_ ev_io *iow, int revents)
915	{	1249	{
		1250	int i;
		1251
916	#if EV_USE_EVENTFD	1252	#if EV_USE_EVENTFD
917	if (evfd >= 0)	1253	if (evfd >= 0)
918	{	1254	{
919	uint64_t counter;	1255	uint64_t counter;
920	read (evfd, &counter, sizeof (uint64_t));	1256	read (evfd, &counter, sizeof (uint64_t));
…		…
924	{	1260	{
925	char dummy;	1261	char dummy;
926	read (evpipe [0], &dummy, 1);	1262	read (evpipe [0], &dummy, 1);
927	}	1263	}
928		1264
929	if (gotsig && ev_is_default_loop (EV_A))	1265	if (sig_pending)
930	{	1266	{
931	int signum;	1267	sig_pending = 0;
932	gotsig = 0;
933		1268
934	for (signum = signalmax; signum--; )	1269	for (i = EV_NSIG - 1; i--; )
935	if (signals [signum].gotsig)	1270	if (expect_false (signals [i].pending))
936	ev_feed_signal_event (EV_A_ signum + 1);	1271	ev_feed_signal_event (EV_A_ i + 1);
937	}	1272	}
938		1273
939	#if EV_ASYNC_ENABLE	1274	#if EV_ASYNC_ENABLE
940	if (gotasync)	1275	if (async_pending)
941	{	1276	{
942	int i;	1277	async_pending = 0;
943	gotasync = 0;
944		1278
945	for (i = asynccnt; i--; )	1279	for (i = asynccnt; i--; )
946	if (asyncs [i]->sent)	1280	if (asyncs [i]->sent)
947	{	1281	{
948	asyncs [i]->sent = 0;	1282	asyncs [i]->sent = 0;
…		…
956		1290
957	static void	1291	static void
958	ev_sighandler (int signum)	1292	ev_sighandler (int signum)
959	{	1293	{
960	#if EV_MULTIPLICITY	1294	#if EV_MULTIPLICITY
961	struct ev_loop *loop = &default_loop_struct;	1295	EV_P = signals [signum - 1].loop;
962	#endif	1296	#endif
963		1297
964	#if _WIN32	1298	#if _WIN32
965	signal (signum, ev_sighandler);	1299	signal (signum, ev_sighandler);
966	#endif	1300	#endif
967		1301
968	signals [signum - 1].gotsig = 1;	1302	signals [signum - 1].pending = 1;
969	evpipe_write (EV_A_ &gotsig);	1303	evpipe_write (EV_A_ &sig_pending);
970	}	1304	}
971		1305
972	void noinline	1306	void noinline
973	ev_feed_signal_event (EV_P_ int signum)	1307	ev_feed_signal_event (EV_P_ int signum)
974	{	1308	{
975	WL w;	1309	WL w;
976		1310
		1311	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1312	return;
		1313
		1314	--signum;
		1315
977	#if EV_MULTIPLICITY	1316	#if EV_MULTIPLICITY
978	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1317	/* it is permissible to try to feed a signal to the wrong loop */
979	#endif	1318	/* or, likely more useful, feeding a signal nobody is waiting for */
980		1319
981	--signum;	1320	if (expect_false (signals [signum].loop != EV_A))
982
983	if (signum < 0 || signum >= signalmax)
984	return;	1321	return;
		1322	#endif
985		1323
986	signals [signum].gotsig = 0;	1324	signals [signum].pending = 0;
987		1325
988	for (w = signals [signum].head; w; w = w->next)	1326	for (w = signals [signum].head; w; w = w->next)
989	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1327	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
990	}	1328	}
991		1329
		1330	#if EV_USE_SIGNALFD
		1331	static void
		1332	sigfdcb (EV_P_ ev_io *iow, int revents)
		1333	{
		1334	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1335
		1336	for (;;)
		1337	{
		1338	ssize_t res = read (sigfd, si, sizeof (si));
		1339
		1340	/* not ISO-C, as res might be -1, but works with SuS */
		1341	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1342	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1343
		1344	if (res < (ssize_t)sizeof (si))
		1345	break;
		1346	}
		1347	}
		1348	#endif
		1349
992	/*****************************************************************************/	1350	/*****************************************************************************/
993		1351
994	static WL childs [EV_PID_HASHSIZE];	1352	static WL childs [EV_PID_HASHSIZE];
995		1353
996	#ifndef _WIN32	1354	#ifndef _WIN32
…		…
999		1357
1000	#ifndef WIFCONTINUED	1358	#ifndef WIFCONTINUED
1001	# define WIFCONTINUED(status) 0	1359	# define WIFCONTINUED(status) 0
1002	#endif	1360	#endif
1003		1361
1004	void inline_speed	1362	/* handle a single child status event */
		1363	inline_speed void
1005	child_reap (EV_P_ int chain, int pid, int status)	1364	child_reap (EV_P_ int chain, int pid, int status)
1006	{	1365	{
1007	ev_child *w;	1366	ev_child *w;
1008	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1367	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1009		1368
…		…
1022		1381
1023	#ifndef WCONTINUED	1382	#ifndef WCONTINUED
1024	# define WCONTINUED 0	1383	# define WCONTINUED 0
1025	#endif	1384	#endif
1026		1385
		1386	/* called on sigchld etc., calls waitpid */
1027	static void	1387	static void
1028	childcb (EV_P_ ev_signal *sw, int revents)	1388	childcb (EV_P_ ev_signal *sw, int revents)
1029	{	1389	{
1030	int pid, status;	1390	int pid, status;
1031		1391
…		…
1112	/* kqueue is borked on everything but netbsd apparently */	1472	/* kqueue is borked on everything but netbsd apparently */
1113	/* it usually doesn't work correctly on anything but sockets and pipes */	1473	/* it usually doesn't work correctly on anything but sockets and pipes */
1114	flags &= ~EVBACKEND_KQUEUE;	1474	flags &= ~EVBACKEND_KQUEUE;
1115	#endif	1475	#endif
1116	#ifdef __APPLE__	1476	#ifdef __APPLE__
1117	// flags &= ~EVBACKEND_KQUEUE; for documentation	1477	/* only select works correctly on that "unix-certified" platform */
1118	flags &= ~EVBACKEND_POLL;	1478	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1479	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1119	#endif	1480	#endif
1120		1481
1121	return flags;	1482	return flags;
1122	}	1483	}
1123		1484
…		…
1137	ev_backend (EV_P)	1498	ev_backend (EV_P)
1138	{	1499	{
1139	return backend;	1500	return backend;
1140	}	1501	}
1141		1502
		1503	#if EV_MINIMAL < 2
1142	unsigned int	1504	unsigned int
1143	ev_loop_count (EV_P)	1505	ev_loop_count (EV_P)
1144	{	1506	{
1145	return loop_count;	1507	return loop_count;
1146	}	1508	}
1147		1509
		1510	unsigned int
		1511	ev_loop_depth (EV_P)
		1512	{
		1513	return loop_depth;
		1514	}
		1515
1148	void	1516	void
1149	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1517	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1150	{	1518	{
1151	io_blocktime = interval;	1519	io_blocktime = interval;
1152	}	1520	}
…		…
1155	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1523	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1156	{	1524	{
1157	timeout_blocktime = interval;	1525	timeout_blocktime = interval;
1158	}	1526	}
1159		1527
		1528	void
		1529	ev_set_userdata (EV_P_ void *data)
		1530	{
		1531	userdata = data;
		1532	}
		1533
		1534	void *
		1535	ev_userdata (EV_P)
		1536	{
		1537	return userdata;
		1538	}
		1539
		1540	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1541	{
		1542	invoke_cb = invoke_pending_cb;
		1543	}
		1544
		1545	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1546	{
		1547	release_cb = release;
		1548	acquire_cb = acquire;
		1549	}
		1550	#endif
		1551
		1552	/* initialise a loop structure, must be zero-initialised */
1160	static void noinline	1553	static void noinline
1161	loop_init (EV_P_ unsigned int flags)	1554	loop_init (EV_P_ unsigned int flags)
1162	{	1555	{
1163	if (!backend)	1556	if (!backend)
1164	{	1557	{
		1558	#if EV_USE_REALTIME
		1559	if (!have_realtime)
		1560	{
		1561	struct timespec ts;
		1562
		1563	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1564	have_realtime = 1;
		1565	}
		1566	#endif
		1567
1165	#if EV_USE_MONOTONIC	1568	#if EV_USE_MONOTONIC
		1569	if (!have_monotonic)
1166	{	1570	{
1167	struct timespec ts;	1571	struct timespec ts;
		1572
1168	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1573	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1169	have_monotonic = 1;	1574	have_monotonic = 1;
1170	}	1575	}
1171	#endif	1576	#endif
		1577
		1578	/* pid check not overridable via env */
		1579	#ifndef _WIN32
		1580	if (flags & EVFLAG_FORKCHECK)
		1581	curpid = getpid ();
		1582	#endif
		1583
		1584	if (!(flags & EVFLAG_NOENV)
		1585	&& !enable_secure ()
		1586	&& getenv ("LIBEV_FLAGS"))
		1587	flags = atoi (getenv ("LIBEV_FLAGS"));
1172		1588
1173	ev_rt_now = ev_time ();	1589	ev_rt_now = ev_time ();
1174	mn_now = get_clock ();	1590	mn_now = get_clock ();
1175	now_floor = mn_now;	1591	now_floor = mn_now;
1176	rtmn_diff = ev_rt_now - mn_now;	1592	rtmn_diff = ev_rt_now - mn_now;
		1593	#if EV_MINIMAL < 2
		1594	invoke_cb = ev_invoke_pending;
		1595	#endif
1177		1596
1178	io_blocktime = 0.;	1597	io_blocktime = 0.;
1179	timeout_blocktime = 0.;	1598	timeout_blocktime = 0.;
1180	backend = 0;	1599	backend = 0;
1181	backend_fd = -1;	1600	backend_fd = -1;
1182	gotasync = 0;	1601	sig_pending = 0;
		1602	#if EV_ASYNC_ENABLE
		1603	async_pending = 0;
		1604	#endif
1183	#if EV_USE_INOTIFY	1605	#if EV_USE_INOTIFY
1184	fs_fd = -2;	1606	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1185	#endif	1607	#endif
1186		1608	#if EV_USE_SIGNALFD
1187	/* pid check not overridable via env */	1609	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1188	#ifndef _WIN32
1189	if (flags & EVFLAG_FORKCHECK)
1190	curpid = getpid ();
1191	#endif	1610	#endif
1192
1193	if (!(flags & EVFLAG_NOENV)
1194	&& !enable_secure ()
1195	&& getenv ("LIBEV_FLAGS"))
1196	flags = atoi (getenv ("LIBEV_FLAGS"));
1197		1611
1198	if (!(flags & 0x0000ffffU))	1612	if (!(flags & 0x0000ffffU))
1199	flags |= ev_recommended_backends ();	1613	flags |= ev_recommended_backends ();
1200		1614
1201	#if EV_USE_PORT	1615	#if EV_USE_PORT
…		…
1212	#endif	1626	#endif
1213	#if EV_USE_SELECT	1627	#if EV_USE_SELECT
1214	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1628	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1215	#endif	1629	#endif
1216		1630
		1631	ev_prepare_init (&pending_w, pendingcb);
		1632
1217	ev_init (&pipeev, pipecb);	1633	ev_init (&pipe_w, pipecb);
1218	ev_set_priority (&pipeev, EV_MAXPRI);	1634	ev_set_priority (&pipe_w, EV_MAXPRI);
1219	}	1635	}
1220	}	1636	}
1221		1637
		1638	/* free up a loop structure */
1222	static void noinline	1639	static void noinline
1223	loop_destroy (EV_P)	1640	loop_destroy (EV_P)
1224	{	1641	{
1225	int i;	1642	int i;
1226		1643
1227	if (ev_is_active (&pipeev))	1644	if (ev_is_active (&pipe_w))
1228	{	1645	{
1229	ev_ref (EV_A); /* signal watcher */	1646	/*ev_ref (EV_A);*/
1230	ev_io_stop (EV_A_ &pipeev);	1647	/*ev_io_stop (EV_A_ &pipe_w);*/
1231		1648
1232	#if EV_USE_EVENTFD	1649	#if EV_USE_EVENTFD
1233	if (evfd >= 0)	1650	if (evfd >= 0)
1234	close (evfd);	1651	close (evfd);
1235	#endif	1652	#endif
1236		1653
1237	if (evpipe [0] >= 0)	1654	if (evpipe [0] >= 0)
1238	{	1655	{
1239	close (evpipe [0]);	1656	EV_WIN32_CLOSE_FD (evpipe [0]);
1240	close (evpipe [1]);	1657	EV_WIN32_CLOSE_FD (evpipe [1]);
1241	}	1658	}
1242	}	1659	}
		1660
		1661	#if EV_USE_SIGNALFD
		1662	if (ev_is_active (&sigfd_w))
		1663	close (sigfd);
		1664	#endif
1243		1665
1244	#if EV_USE_INOTIFY	1666	#if EV_USE_INOTIFY
1245	if (fs_fd >= 0)	1667	if (fs_fd >= 0)
1246	close (fs_fd);	1668	close (fs_fd);
1247	#endif	1669	#endif
…		…
1271	#if EV_IDLE_ENABLE	1693	#if EV_IDLE_ENABLE
1272	array_free (idle, [i]);	1694	array_free (idle, [i]);
1273	#endif	1695	#endif
1274	}	1696	}
1275		1697
1276	ev_free (anfds); anfdmax = 0;	1698	ev_free (anfds); anfds = 0; anfdmax = 0;
1277		1699
1278	/* have to use the microsoft-never-gets-it-right macro */	1700	/* have to use the microsoft-never-gets-it-right macro */
		1701	array_free (rfeed, EMPTY);
1279	array_free (fdchange, EMPTY);	1702	array_free (fdchange, EMPTY);
1280	array_free (timer, EMPTY);	1703	array_free (timer, EMPTY);
1281	#if EV_PERIODIC_ENABLE	1704	#if EV_PERIODIC_ENABLE
1282	array_free (periodic, EMPTY);	1705	array_free (periodic, EMPTY);
1283	#endif	1706	#endif
…		…
1292		1715
1293	backend = 0;	1716	backend = 0;
1294	}	1717	}
1295		1718
1296	#if EV_USE_INOTIFY	1719	#if EV_USE_INOTIFY
1297	void inline_size infy_fork (EV_P);	1720	inline_size void infy_fork (EV_P);
1298	#endif	1721	#endif
1299		1722
1300	void inline_size	1723	inline_size void
1301	loop_fork (EV_P)	1724	loop_fork (EV_P)
1302	{	1725	{
1303	#if EV_USE_PORT	1726	#if EV_USE_PORT
1304	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1727	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1305	#endif	1728	#endif
…		…
1311	#endif	1734	#endif
1312	#if EV_USE_INOTIFY	1735	#if EV_USE_INOTIFY
1313	infy_fork (EV_A);	1736	infy_fork (EV_A);
1314	#endif	1737	#endif
1315		1738
1316	if (ev_is_active (&pipeev))	1739	if (ev_is_active (&pipe_w))
1317	{	1740	{
1318	/* this "locks" the handlers against writing to the pipe */	1741	/* this "locks" the handlers against writing to the pipe */
1319	/* while we modify the fd vars */	1742	/* while we modify the fd vars */
1320	gotsig = 1;	1743	sig_pending = 1;
1321	#if EV_ASYNC_ENABLE	1744	#if EV_ASYNC_ENABLE
1322	gotasync = 1;	1745	async_pending = 1;
1323	#endif	1746	#endif
1324		1747
1325	ev_ref (EV_A);	1748	ev_ref (EV_A);
1326	ev_io_stop (EV_A_ &pipeev);	1749	ev_io_stop (EV_A_ &pipe_w);
1327		1750
1328	#if EV_USE_EVENTFD	1751	#if EV_USE_EVENTFD
1329	if (evfd >= 0)	1752	if (evfd >= 0)
1330	close (evfd);	1753	close (evfd);
1331	#endif	1754	#endif
1332		1755
1333	if (evpipe [0] >= 0)	1756	if (evpipe [0] >= 0)
1334	{	1757	{
1335	close (evpipe [0]);	1758	EV_WIN32_CLOSE_FD (evpipe [0]);
1336	close (evpipe [1]);	1759	EV_WIN32_CLOSE_FD (evpipe [1]);
1337	}	1760	}
1338		1761
1339	evpipe_init (EV_A);	1762	evpipe_init (EV_A);
1340	/* now iterate over everything, in case we missed something */	1763	/* now iterate over everything, in case we missed something */
1341	pipecb (EV_A_ &pipeev, EV_READ);	1764	pipecb (EV_A_ &pipe_w, EV_READ);
1342	}	1765	}
1343		1766
1344	postfork = 0;	1767	postfork = 0;
1345	}	1768	}
1346		1769
1347	#if EV_MULTIPLICITY	1770	#if EV_MULTIPLICITY
		1771
1348	struct ev_loop *	1772	struct ev_loop *
1349	ev_loop_new (unsigned int flags)	1773	ev_loop_new (unsigned int flags)
1350	{	1774	{
1351	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1775	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1352		1776
1353	memset (loop, 0, sizeof (struct ev_loop));	1777	memset (EV_A, 0, sizeof (struct ev_loop));
1354
1355	loop_init (EV_A_ flags);	1778	loop_init (EV_A_ flags);
1356		1779
1357	if (ev_backend (EV_A))	1780	if (ev_backend (EV_A))
1358	return loop;	1781	return EV_A;
1359		1782
1360	return 0;	1783	return 0;
1361	}	1784	}
1362		1785
1363	void	1786	void
…		…
1370	void	1793	void
1371	ev_loop_fork (EV_P)	1794	ev_loop_fork (EV_P)
1372	{	1795	{
1373	postfork = 1; /* must be in line with ev_default_fork */	1796	postfork = 1; /* must be in line with ev_default_fork */
1374	}	1797	}
		1798	#endif /* multiplicity */
1375		1799
		1800	#if EV_VERIFY
		1801	static void noinline
		1802	verify_watcher (EV_P_ W w)
		1803	{
		1804	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1805
		1806	if (w->pending)
		1807	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1808	}
		1809
		1810	static void noinline
		1811	verify_heap (EV_P_ ANHE *heap, int N)
		1812	{
		1813	int i;
		1814
		1815	for (i = HEAP0; i < N + HEAP0; ++i)
		1816	{
		1817	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1818	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1819	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1820
		1821	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1822	}
		1823	}
		1824
		1825	static void noinline
		1826	array_verify (EV_P_ W *ws, int cnt)
		1827	{
		1828	while (cnt--)
		1829	{
		1830	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1831	verify_watcher (EV_A_ ws [cnt]);
		1832	}
		1833	}
		1834	#endif
		1835
		1836	#if EV_MINIMAL < 2
		1837	void
		1838	ev_loop_verify (EV_P)
		1839	{
		1840	#if EV_VERIFY
		1841	int i;
		1842	WL w;
		1843
		1844	assert (activecnt >= -1);
		1845
		1846	assert (fdchangemax >= fdchangecnt);
		1847	for (i = 0; i < fdchangecnt; ++i)
		1848	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1849
		1850	assert (anfdmax >= 0);
		1851	for (i = 0; i < anfdmax; ++i)
		1852	for (w = anfds [i].head; w; w = w->next)
		1853	{
		1854	verify_watcher (EV_A_ (W)w);
		1855	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1856	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1857	}
		1858
		1859	assert (timermax >= timercnt);
		1860	verify_heap (EV_A_ timers, timercnt);
		1861
		1862	#if EV_PERIODIC_ENABLE
		1863	assert (periodicmax >= periodiccnt);
		1864	verify_heap (EV_A_ periodics, periodiccnt);
		1865	#endif
		1866
		1867	for (i = NUMPRI; i--; )
		1868	{
		1869	assert (pendingmax [i] >= pendingcnt [i]);
		1870	#if EV_IDLE_ENABLE
		1871	assert (idleall >= 0);
		1872	assert (idlemax [i] >= idlecnt [i]);
		1873	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1874	#endif
		1875	}
		1876
		1877	#if EV_FORK_ENABLE
		1878	assert (forkmax >= forkcnt);
		1879	array_verify (EV_A_ (W *)forks, forkcnt);
		1880	#endif
		1881
		1882	#if EV_ASYNC_ENABLE
		1883	assert (asyncmax >= asynccnt);
		1884	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1885	#endif
		1886
		1887	assert (preparemax >= preparecnt);
		1888	array_verify (EV_A_ (W *)prepares, preparecnt);
		1889
		1890	assert (checkmax >= checkcnt);
		1891	array_verify (EV_A_ (W *)checks, checkcnt);
		1892
		1893	# if 0
		1894	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1895	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1896	# endif
		1897	#endif
		1898	}
1376	#endif	1899	#endif
1377		1900
1378	#if EV_MULTIPLICITY	1901	#if EV_MULTIPLICITY
1379	struct ev_loop *	1902	struct ev_loop *
1380	ev_default_loop_init (unsigned int flags)	1903	ev_default_loop_init (unsigned int flags)
…		…
1384	#endif	1907	#endif
1385	{	1908	{
1386	if (!ev_default_loop_ptr)	1909	if (!ev_default_loop_ptr)
1387	{	1910	{
1388	#if EV_MULTIPLICITY	1911	#if EV_MULTIPLICITY
1389	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1912	EV_P = ev_default_loop_ptr = &default_loop_struct;
1390	#else	1913	#else
1391	ev_default_loop_ptr = 1;	1914	ev_default_loop_ptr = 1;
1392	#endif	1915	#endif
1393		1916
1394	loop_init (EV_A_ flags);	1917	loop_init (EV_A_ flags);
…		…
1411		1934
1412	void	1935	void
1413	ev_default_destroy (void)	1936	ev_default_destroy (void)
1414	{	1937	{
1415	#if EV_MULTIPLICITY	1938	#if EV_MULTIPLICITY
1416	struct ev_loop *loop = ev_default_loop_ptr;	1939	EV_P = ev_default_loop_ptr;
1417	#endif	1940	#endif
		1941
		1942	ev_default_loop_ptr = 0;
1418		1943
1419	#ifndef _WIN32	1944	#ifndef _WIN32
1420	ev_ref (EV_A); /* child watcher */	1945	ev_ref (EV_A); /* child watcher */
1421	ev_signal_stop (EV_A_ &childev);	1946	ev_signal_stop (EV_A_ &childev);
1422	#endif	1947	#endif
…		…
1426		1951
1427	void	1952	void
1428	ev_default_fork (void)	1953	ev_default_fork (void)
1429	{	1954	{
1430	#if EV_MULTIPLICITY	1955	#if EV_MULTIPLICITY
1431	struct ev_loop *loop = ev_default_loop_ptr;	1956	EV_P = ev_default_loop_ptr;
1432	#endif	1957	#endif
1433		1958
1434	if (backend)
1435	postfork = 1; /* must be in line with ev_loop_fork */	1959	postfork = 1; /* must be in line with ev_loop_fork */
1436	}	1960	}
1437		1961
1438	/*****************************************************************************/	1962	/*****************************************************************************/
1439		1963
1440	void	1964	void
1441	ev_invoke (EV_P_ void *w, int revents)	1965	ev_invoke (EV_P_ void *w, int revents)
1442	{	1966	{
1443	EV_CB_INVOKE ((W)w, revents);	1967	EV_CB_INVOKE ((W)w, revents);
1444	}	1968	}
1445		1969
1446	void inline_speed	1970	unsigned int
1447	call_pending (EV_P)	1971	ev_pending_count (EV_P)
		1972	{
		1973	int pri;
		1974	unsigned int count = 0;
		1975
		1976	for (pri = NUMPRI; pri--; )
		1977	count += pendingcnt [pri];
		1978
		1979	return count;
		1980	}
		1981
		1982	void noinline
		1983	ev_invoke_pending (EV_P)
1448	{	1984	{
1449	int pri;	1985	int pri;
1450		1986
1451	for (pri = NUMPRI; pri--; )	1987	for (pri = NUMPRI; pri--; )
1452	while (pendingcnt [pri])	1988	while (pendingcnt [pri])
1453	{	1989	{
1454	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1990	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1455		1991
1456	if (expect_true (p->w))
1457	{
1458	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1992	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1993	/* ^ this is no longer true, as pending_w could be here */
1459		1994
1460	p->w->pending = 0;	1995	p->w->pending = 0;
1461	EV_CB_INVOKE (p->w, p->events);	1996	EV_CB_INVOKE (p->w, p->events);
1462	}	1997	EV_FREQUENT_CHECK;
1463	}	1998	}
1464	}	1999	}
1465		2000
1466	void inline_size
1467	timers_reify (EV_P)
1468	{
1469	while (timercnt && ev_at (timers [1]) <= mn_now)
1470	{
1471	ev_timer *w = (ev_timer *)timers [1];
1472
1473	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1474
1475	/* first reschedule or stop timer */
1476	if (w->repeat)
1477	{
1478	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1479
1480	ev_at (w) += w->repeat;
1481	if (ev_at (w) < mn_now)
1482	ev_at (w) = mn_now;
1483
1484	downheap (timers, timercnt, 1);
1485	}
1486	else
1487	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1488
1489	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1490	}
1491	}
1492
1493	#if EV_PERIODIC_ENABLE
1494	void inline_size
1495	periodics_reify (EV_P)
1496	{
1497	while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1498	{
1499	ev_periodic *w = (ev_periodic *)periodics [1];
1500
1501	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1502
1503	/* first reschedule or stop timer */
1504	if (w->reschedule_cb)
1505	{
1506	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1507	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1508	downheap (periodics, periodiccnt, 1);
1509	}
1510	else if (w->interval)
1511	{
1512	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1513	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1514	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1515	downheap (periodics, periodiccnt, 1);
1516	}
1517	else
1518	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1519
1520	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1521	}
1522	}
1523
1524	static void noinline
1525	periodics_reschedule (EV_P)
1526	{
1527	int i;
1528
1529	/* adjust periodics after time jump */
1530	for (i = 1; i <= periodiccnt; ++i)
1531	{
1532	ev_periodic *w = (ev_periodic *)periodics [i];
1533
1534	if (w->reschedule_cb)
1535	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1536	else if (w->interval)
1537	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1538	}
1539
1540	/* now rebuild the heap */
1541	for (i = periodiccnt >> 1; i--; )
1542	downheap (periodics, periodiccnt, i);
1543	}
1544	#endif
1545
1546	#if EV_IDLE_ENABLE	2001	#if EV_IDLE_ENABLE
1547	void inline_size	2002	/* make idle watchers pending. this handles the "call-idle */
		2003	/* only when higher priorities are idle" logic */
		2004	inline_size void
1548	idle_reify (EV_P)	2005	idle_reify (EV_P)
1549	{	2006	{
1550	if (expect_false (idleall))	2007	if (expect_false (idleall))
1551	{	2008	{
1552	int pri;	2009	int pri;
…		…
1564	}	2021	}
1565	}	2022	}
1566	}	2023	}
1567	#endif	2024	#endif
1568		2025
1569	void inline_speed	2026	/* make timers pending */
		2027	inline_size void
		2028	timers_reify (EV_P)
		2029	{
		2030	EV_FREQUENT_CHECK;
		2031
		2032	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		2033	{
		2034	do
		2035	{
		2036	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2037
		2038	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2039
		2040	/* first reschedule or stop timer */
		2041	if (w->repeat)
		2042	{
		2043	ev_at (w) += w->repeat;
		2044	if (ev_at (w) < mn_now)
		2045	ev_at (w) = mn_now;
		2046
		2047	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		2048
		2049	ANHE_at_cache (timers [HEAP0]);
		2050	downheap (timers, timercnt, HEAP0);
		2051	}
		2052	else
		2053	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2054
		2055	EV_FREQUENT_CHECK;
		2056	feed_reverse (EV_A_ (W)w);
		2057	}
		2058	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
		2059
		2060	feed_reverse_done (EV_A_ EV_TIMEOUT);
		2061	}
		2062	}
		2063
		2064	#if EV_PERIODIC_ENABLE
		2065	/* make periodics pending */
		2066	inline_size void
		2067	periodics_reify (EV_P)
		2068	{
		2069	EV_FREQUENT_CHECK;
		2070
		2071	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		2072	{
		2073	int feed_count = 0;
		2074
		2075	do
		2076	{
		2077	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2078
		2079	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2080
		2081	/* first reschedule or stop timer */
		2082	if (w->reschedule_cb)
		2083	{
		2084	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		2085
		2086	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		2087
		2088	ANHE_at_cache (periodics [HEAP0]);
		2089	downheap (periodics, periodiccnt, HEAP0);
		2090	}
		2091	else if (w->interval)
		2092	{
		2093	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2094	/* if next trigger time is not sufficiently in the future, put it there */
		2095	/* this might happen because of floating point inexactness */
		2096	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2097	{
		2098	ev_at (w) += w->interval;
		2099
		2100	/* if interval is unreasonably low we might still have a time in the past */
		2101	/* so correct this. this will make the periodic very inexact, but the user */
		2102	/* has effectively asked to get triggered more often than possible */
		2103	if (ev_at (w) < ev_rt_now)
		2104	ev_at (w) = ev_rt_now;
		2105	}
		2106
		2107	ANHE_at_cache (periodics [HEAP0]);
		2108	downheap (periodics, periodiccnt, HEAP0);
		2109	}
		2110	else
		2111	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2112
		2113	EV_FREQUENT_CHECK;
		2114	feed_reverse (EV_A_ (W)w);
		2115	}
		2116	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
		2117
		2118	feed_reverse_done (EV_A_ EV_PERIODIC);
		2119	}
		2120	}
		2121
		2122	/* simply recalculate all periodics */
		2123	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
		2124	static void noinline
		2125	periodics_reschedule (EV_P)
		2126	{
		2127	int i;
		2128
		2129	/* adjust periodics after time jump */
		2130	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		2131	{
		2132	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
		2133
		2134	if (w->reschedule_cb)
		2135	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		2136	else if (w->interval)
		2137	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2138
		2139	ANHE_at_cache (periodics [i]);
		2140	}
		2141
		2142	reheap (periodics, periodiccnt);
		2143	}
		2144	#endif
		2145
		2146	/* adjust all timers by a given offset */
		2147	static void noinline
		2148	timers_reschedule (EV_P_ ev_tstamp adjust)
		2149	{
		2150	int i;
		2151
		2152	for (i = 0; i < timercnt; ++i)
		2153	{
		2154	ANHE *he = timers + i + HEAP0;
		2155	ANHE_w (*he)->at += adjust;
		2156	ANHE_at_cache (*he);
		2157	}
		2158	}
		2159
		2160	/* fetch new monotonic and realtime times from the kernel */
		2161	/* also detetc if there was a timejump, and act accordingly */
		2162	inline_speed void
1570	time_update (EV_P_ ev_tstamp max_block)	2163	time_update (EV_P_ ev_tstamp max_block)
1571	{	2164	{
1572	int i;
1573
1574	#if EV_USE_MONOTONIC	2165	#if EV_USE_MONOTONIC
1575	if (expect_true (have_monotonic))	2166	if (expect_true (have_monotonic))
1576	{	2167	{
		2168	int i;
1577	ev_tstamp odiff = rtmn_diff;	2169	ev_tstamp odiff = rtmn_diff;
1578		2170
1579	mn_now = get_clock ();	2171	mn_now = get_clock ();
1580		2172
1581	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2173	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1599	*/	2191	*/
1600	for (i = 4; --i; )	2192	for (i = 4; --i; )
1601	{	2193	{
1602	rtmn_diff = ev_rt_now - mn_now;	2194	rtmn_diff = ev_rt_now - mn_now;
1603		2195
1604	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	2196	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1605	return; /* all is well */	2197	return; /* all is well */
1606		2198
1607	ev_rt_now = ev_time ();	2199	ev_rt_now = ev_time ();
1608	mn_now = get_clock ();	2200	mn_now = get_clock ();
1609	now_floor = mn_now;	2201	now_floor = mn_now;
1610	}	2202	}
1611		2203
		2204	/* no timer adjustment, as the monotonic clock doesn't jump */
		2205	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1612	# if EV_PERIODIC_ENABLE	2206	# if EV_PERIODIC_ENABLE
1613	periodics_reschedule (EV_A);	2207	periodics_reschedule (EV_A);
1614	# endif	2208	# endif
1615	/* no timer adjustment, as the monotonic clock doesn't jump */
1616	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1617	}	2209	}
1618	else	2210	else
1619	#endif	2211	#endif
1620	{	2212	{
1621	ev_rt_now = ev_time ();	2213	ev_rt_now = ev_time ();
1622		2214
1623	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2215	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1624	{	2216	{
		2217	/* adjust timers. this is easy, as the offset is the same for all of them */
		2218	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1625	#if EV_PERIODIC_ENABLE	2219	#if EV_PERIODIC_ENABLE
1626	periodics_reschedule (EV_A);	2220	periodics_reschedule (EV_A);
1627	#endif	2221	#endif
1628	/* adjust timers. this is easy, as the offset is the same for all of them */
1629	for (i = 1; i <= timercnt; ++i)
1630	ev_at (timers [i]) += ev_rt_now - mn_now;
1631	}	2222	}
1632		2223
1633	mn_now = ev_rt_now;	2224	mn_now = ev_rt_now;
1634	}	2225	}
1635	}	2226	}
1636		2227
1637	void	2228	void
1638	ev_ref (EV_P)
1639	{
1640	++activecnt;
1641	}
1642
1643	void
1644	ev_unref (EV_P)
1645	{
1646	--activecnt;
1647	}
1648
1649	static int loop_done;
1650
1651	void
1652	ev_loop (EV_P_ int flags)	2229	ev_loop (EV_P_ int flags)
1653	{	2230	{
		2231	#if EV_MINIMAL < 2
		2232	++loop_depth;
		2233	#endif
		2234
		2235	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2236
1654	loop_done = EVUNLOOP_CANCEL;	2237	loop_done = EVUNLOOP_CANCEL;
1655		2238
1656	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2239	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1657		2240
1658	do	2241	do
1659	{	2242	{
		2243	#if EV_VERIFY >= 2
		2244	ev_loop_verify (EV_A);
		2245	#endif
		2246
1660	#ifndef _WIN32	2247	#ifndef _WIN32
1661	if (expect_false (curpid)) /* penalise the forking check even more */	2248	if (expect_false (curpid)) /* penalise the forking check even more */
1662	if (expect_false (getpid () != curpid))	2249	if (expect_false (getpid () != curpid))
1663	{	2250	{
1664	curpid = getpid ();	2251	curpid = getpid ();
…		…
1670	/* we might have forked, so queue fork handlers */	2257	/* we might have forked, so queue fork handlers */
1671	if (expect_false (postfork))	2258	if (expect_false (postfork))
1672	if (forkcnt)	2259	if (forkcnt)
1673	{	2260	{
1674	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2261	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1675	call_pending (EV_A);	2262	EV_INVOKE_PENDING;
1676	}	2263	}
1677	#endif	2264	#endif
1678		2265
1679	/* queue prepare watchers (and execute them) */	2266	/* queue prepare watchers (and execute them) */
1680	if (expect_false (preparecnt))	2267	if (expect_false (preparecnt))
1681	{	2268	{
1682	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2269	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1683	call_pending (EV_A);	2270	EV_INVOKE_PENDING;
1684	}	2271	}
1685		2272
1686	if (expect_false (!activecnt))	2273	if (expect_false (loop_done))
1687	break;	2274	break;
1688		2275
1689	/* we might have forked, so reify kernel state if necessary */	2276	/* we might have forked, so reify kernel state if necessary */
1690	if (expect_false (postfork))	2277	if (expect_false (postfork))
1691	loop_fork (EV_A);	2278	loop_fork (EV_A);
…		…
1698	ev_tstamp waittime = 0.;	2285	ev_tstamp waittime = 0.;
1699	ev_tstamp sleeptime = 0.;	2286	ev_tstamp sleeptime = 0.;
1700		2287
1701	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2288	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1702	{	2289	{
		2290	/* remember old timestamp for io_blocktime calculation */
		2291	ev_tstamp prev_mn_now = mn_now;
		2292
1703	/* update time to cancel out callback processing overhead */	2293	/* update time to cancel out callback processing overhead */
1704	time_update (EV_A_ 1e100);	2294	time_update (EV_A_ 1e100);
1705		2295
1706	waittime = MAX_BLOCKTIME;	2296	waittime = MAX_BLOCKTIME;
1707		2297
1708	if (timercnt)	2298	if (timercnt)
1709	{	2299	{
1710	ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;	2300	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1711	if (waittime > to) waittime = to;	2301	if (waittime > to) waittime = to;
1712	}	2302	}
1713		2303
1714	#if EV_PERIODIC_ENABLE	2304	#if EV_PERIODIC_ENABLE
1715	if (periodiccnt)	2305	if (periodiccnt)
1716	{	2306	{
1717	ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;	2307	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1718	if (waittime > to) waittime = to;	2308	if (waittime > to) waittime = to;
1719	}	2309	}
1720	#endif	2310	#endif
1721		2311
		2312	/* don't let timeouts decrease the waittime below timeout_blocktime */
1722	if (expect_false (waittime < timeout_blocktime))	2313	if (expect_false (waittime < timeout_blocktime))
1723	waittime = timeout_blocktime;	2314	waittime = timeout_blocktime;
1724		2315
1725	sleeptime = waittime - backend_fudge;	2316	/* extra check because io_blocktime is commonly 0 */
1726
1727	if (expect_true (sleeptime > io_blocktime))	2317	if (expect_false (io_blocktime))
1728	sleeptime = io_blocktime;
1729
1730	if (sleeptime)
1731	{	2318	{
		2319	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2320
		2321	if (sleeptime > waittime - backend_fudge)
		2322	sleeptime = waittime - backend_fudge;
		2323
		2324	if (expect_true (sleeptime > 0.))
		2325	{
1732	ev_sleep (sleeptime);	2326	ev_sleep (sleeptime);
1733	waittime -= sleeptime;	2327	waittime -= sleeptime;
		2328	}
1734	}	2329	}
1735	}	2330	}
1736		2331
		2332	#if EV_MINIMAL < 2
1737	++loop_count;	2333	++loop_count;
		2334	#endif
		2335	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1738	backend_poll (EV_A_ waittime);	2336	backend_poll (EV_A_ waittime);
		2337	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1739		2338
1740	/* update ev_rt_now, do magic */	2339	/* update ev_rt_now, do magic */
1741	time_update (EV_A_ waittime + sleeptime);	2340	time_update (EV_A_ waittime + sleeptime);
1742	}	2341	}
1743		2342
…		…
1754		2353
1755	/* queue check watchers, to be executed first */	2354	/* queue check watchers, to be executed first */
1756	if (expect_false (checkcnt))	2355	if (expect_false (checkcnt))
1757	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2356	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1758		2357
1759	call_pending (EV_A);	2358	EV_INVOKE_PENDING;
1760	}	2359	}
1761	while (expect_true (	2360	while (expect_true (
1762	activecnt	2361	activecnt
1763	&& !loop_done	2362	&& !loop_done
1764	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2363	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1765	));	2364	));
1766		2365
1767	if (loop_done == EVUNLOOP_ONE)	2366	if (loop_done == EVUNLOOP_ONE)
1768	loop_done = EVUNLOOP_CANCEL;	2367	loop_done = EVUNLOOP_CANCEL;
		2368
		2369	#if EV_MINIMAL < 2
		2370	--loop_depth;
		2371	#endif
1769	}	2372	}
1770		2373
1771	void	2374	void
1772	ev_unloop (EV_P_ int how)	2375	ev_unloop (EV_P_ int how)
1773	{	2376	{
1774	loop_done = how;	2377	loop_done = how;
1775	}	2378	}
1776		2379
		2380	void
		2381	ev_ref (EV_P)
		2382	{
		2383	++activecnt;
		2384	}
		2385
		2386	void
		2387	ev_unref (EV_P)
		2388	{
		2389	--activecnt;
		2390	}
		2391
		2392	void
		2393	ev_now_update (EV_P)
		2394	{
		2395	time_update (EV_A_ 1e100);
		2396	}
		2397
		2398	void
		2399	ev_suspend (EV_P)
		2400	{
		2401	ev_now_update (EV_A);
		2402	}
		2403
		2404	void
		2405	ev_resume (EV_P)
		2406	{
		2407	ev_tstamp mn_prev = mn_now;
		2408
		2409	ev_now_update (EV_A);
		2410	timers_reschedule (EV_A_ mn_now - mn_prev);
		2411	#if EV_PERIODIC_ENABLE
		2412	/* TODO: really do this? */
		2413	periodics_reschedule (EV_A);
		2414	#endif
		2415	}
		2416
1777	/*****************************************************************************/	2417	/*****************************************************************************/
		2418	/* singly-linked list management, used when the expected list length is short */
1778		2419
1779	void inline_size	2420	inline_size void
1780	wlist_add (WL *head, WL elem)	2421	wlist_add (WL *head, WL elem)
1781	{	2422	{
1782	elem->next = *head;	2423	elem->next = *head;
1783	*head = elem;	2424	*head = elem;
1784	}	2425	}
1785		2426
1786	void inline_size	2427	inline_size void
1787	wlist_del (WL *head, WL elem)	2428	wlist_del (WL *head, WL elem)
1788	{	2429	{
1789	while (*head)	2430	while (*head)
1790	{	2431	{
1791	if (*head == elem)	2432	if (expect_true (*head == elem))
1792	{	2433	{
1793	*head = elem->next;	2434	*head = elem->next;
1794	return;	2435	break;
1795	}	2436	}
1796		2437
1797	head = &(*head)->next;	2438	head = &(*head)->next;
1798	}	2439	}
1799	}	2440	}
1800		2441
1801	void inline_speed	2442	/* internal, faster, version of ev_clear_pending */
		2443	inline_speed void
1802	clear_pending (EV_P_ W w)	2444	clear_pending (EV_P_ W w)
1803	{	2445	{
1804	if (w->pending)	2446	if (w->pending)
1805	{	2447	{
1806	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2448	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1807	w->pending = 0;	2449	w->pending = 0;
1808	}	2450	}
1809	}	2451	}
1810		2452
1811	int	2453	int
…		…
1815	int pending = w_->pending;	2457	int pending = w_->pending;
1816		2458
1817	if (expect_true (pending))	2459	if (expect_true (pending))
1818	{	2460	{
1819	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2461	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2462	p->w = (W)&pending_w;
1820	w_->pending = 0;	2463	w_->pending = 0;
1821	p->w = 0;
1822	return p->events;	2464	return p->events;
1823	}	2465	}
1824	else	2466	else
1825	return 0;	2467	return 0;
1826	}	2468	}
1827		2469
1828	void inline_size	2470	inline_size void
1829	pri_adjust (EV_P_ W w)	2471	pri_adjust (EV_P_ W w)
1830	{	2472	{
1831	int pri = w->priority;	2473	int pri = ev_priority (w);
1832	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2474	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1833	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2475	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1834	w->priority = pri;	2476	ev_set_priority (w, pri);
1835	}	2477	}
1836		2478
1837	void inline_speed	2479	inline_speed void
1838	ev_start (EV_P_ W w, int active)	2480	ev_start (EV_P_ W w, int active)
1839	{	2481	{
1840	pri_adjust (EV_A_ w);	2482	pri_adjust (EV_A_ w);
1841	w->active = active;	2483	w->active = active;
1842	ev_ref (EV_A);	2484	ev_ref (EV_A);
1843	}	2485	}
1844		2486
1845	void inline_size	2487	inline_size void
1846	ev_stop (EV_P_ W w)	2488	ev_stop (EV_P_ W w)
1847	{	2489	{
1848	ev_unref (EV_A);	2490	ev_unref (EV_A);
1849	w->active = 0;	2491	w->active = 0;
1850	}	2492	}
…		…
1857	int fd = w->fd;	2499	int fd = w->fd;
1858		2500
1859	if (expect_false (ev_is_active (w)))	2501	if (expect_false (ev_is_active (w)))
1860	return;	2502	return;
1861		2503
1862	assert (("ev_io_start called with negative fd", fd >= 0));	2504	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2505	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
		2506
		2507	EV_FREQUENT_CHECK;
1863		2508
1864	ev_start (EV_A_ (W)w, 1);	2509	ev_start (EV_A_ (W)w, 1);
1865	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2510	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1866	wlist_add (&anfds[fd].head, (WL)w);	2511	wlist_add (&anfds[fd].head, (WL)w);
1867		2512
1868	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2513	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
1869	w->events &= ~EV_IOFDSET;	2514	w->events &= ~EV__IOFDSET;
		2515
		2516	EV_FREQUENT_CHECK;
1870	}	2517	}
1871		2518
1872	void noinline	2519	void noinline
1873	ev_io_stop (EV_P_ ev_io *w)	2520	ev_io_stop (EV_P_ ev_io *w)
1874	{	2521	{
1875	clear_pending (EV_A_ (W)w);	2522	clear_pending (EV_A_ (W)w);
1876	if (expect_false (!ev_is_active (w)))	2523	if (expect_false (!ev_is_active (w)))
1877	return;	2524	return;
1878		2525
1879	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2526	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2527
		2528	EV_FREQUENT_CHECK;
1880		2529
1881	wlist_del (&anfds[w->fd].head, (WL)w);	2530	wlist_del (&anfds[w->fd].head, (WL)w);
1882	ev_stop (EV_A_ (W)w);	2531	ev_stop (EV_A_ (W)w);
1883		2532
1884	fd_change (EV_A_ w->fd, 1);	2533	fd_change (EV_A_ w->fd, 1);
		2534
		2535	EV_FREQUENT_CHECK;
1885	}	2536	}
1886		2537
1887	void noinline	2538	void noinline
1888	ev_timer_start (EV_P_ ev_timer *w)	2539	ev_timer_start (EV_P_ ev_timer *w)
1889	{	2540	{
1890	if (expect_false (ev_is_active (w)))	2541	if (expect_false (ev_is_active (w)))
1891	return;	2542	return;
1892		2543
1893	ev_at (w) += mn_now;	2544	ev_at (w) += mn_now;
1894		2545
1895	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2546	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1896		2547
		2548	EV_FREQUENT_CHECK;
		2549
		2550	++timercnt;
1897	ev_start (EV_A_ (W)w, ++timercnt);	2551	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1898	array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);	2552	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1899	timers [timercnt] = (WT)w;	2553	ANHE_w (timers [ev_active (w)]) = (WT)w;
		2554	ANHE_at_cache (timers [ev_active (w)]);
1900	upheap (timers, timercnt);	2555	upheap (timers, ev_active (w));
1901		2556
		2557	EV_FREQUENT_CHECK;
		2558
1902	/*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/	2559	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1903	}	2560	}
1904		2561
1905	void noinline	2562	void noinline
1906	ev_timer_stop (EV_P_ ev_timer *w)	2563	ev_timer_stop (EV_P_ ev_timer *w)
1907	{	2564	{
1908	clear_pending (EV_A_ (W)w);	2565	clear_pending (EV_A_ (W)w);
1909	if (expect_false (!ev_is_active (w)))	2566	if (expect_false (!ev_is_active (w)))
1910	return;	2567	return;
1911		2568
		2569	EV_FREQUENT_CHECK;
		2570
1912	{	2571	{
1913	int active = ev_active (w);	2572	int active = ev_active (w);
1914		2573
1915	assert (("internal timer heap corruption", timers [active] == (WT)w));	2574	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
1916		2575
		2576	--timercnt;
		2577
1917	if (expect_true (active < timercnt))	2578	if (expect_true (active < timercnt + HEAP0))
1918	{	2579	{
1919	timers [active] = timers [timercnt];	2580	timers [active] = timers [timercnt + HEAP0];
1920	adjustheap (timers, timercnt, active);	2581	adjustheap (timers, timercnt, active);
1921	}	2582	}
1922
1923	--timercnt;
1924	}	2583	}
		2584
		2585	EV_FREQUENT_CHECK;
1925		2586
1926	ev_at (w) -= mn_now;	2587	ev_at (w) -= mn_now;
1927		2588
1928	ev_stop (EV_A_ (W)w);	2589	ev_stop (EV_A_ (W)w);
1929	}	2590	}
1930		2591
1931	void noinline	2592	void noinline
1932	ev_timer_again (EV_P_ ev_timer *w)	2593	ev_timer_again (EV_P_ ev_timer *w)
1933	{	2594	{
		2595	EV_FREQUENT_CHECK;
		2596
1934	if (ev_is_active (w))	2597	if (ev_is_active (w))
1935	{	2598	{
1936	if (w->repeat)	2599	if (w->repeat)
1937	{	2600	{
1938	ev_at (w) = mn_now + w->repeat;	2601	ev_at (w) = mn_now + w->repeat;
		2602	ANHE_at_cache (timers [ev_active (w)]);
1939	adjustheap (timers, timercnt, ev_active (w));	2603	adjustheap (timers, timercnt, ev_active (w));
1940	}	2604	}
1941	else	2605	else
1942	ev_timer_stop (EV_A_ w);	2606	ev_timer_stop (EV_A_ w);
1943	}	2607	}
1944	else if (w->repeat)	2608	else if (w->repeat)
1945	{	2609	{
1946	ev_at (w) = w->repeat;	2610	ev_at (w) = w->repeat;
1947	ev_timer_start (EV_A_ w);	2611	ev_timer_start (EV_A_ w);
1948	}	2612	}
		2613
		2614	EV_FREQUENT_CHECK;
		2615	}
		2616
		2617	ev_tstamp
		2618	ev_timer_remaining (EV_P_ ev_timer *w)
		2619	{
		2620	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
1949	}	2621	}
1950		2622
1951	#if EV_PERIODIC_ENABLE	2623	#if EV_PERIODIC_ENABLE
1952	void noinline	2624	void noinline
1953	ev_periodic_start (EV_P_ ev_periodic *w)	2625	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
1957		2629
1958	if (w->reschedule_cb)	2630	if (w->reschedule_cb)
1959	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2631	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1960	else if (w->interval)	2632	else if (w->interval)
1961	{	2633	{
1962	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2634	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
1963	/* this formula differs from the one in periodic_reify because we do not always round up */	2635	/* this formula differs from the one in periodic_reify because we do not always round up */
1964	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2636	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1965	}	2637	}
1966	else	2638	else
1967	ev_at (w) = w->offset;	2639	ev_at (w) = w->offset;
1968		2640
		2641	EV_FREQUENT_CHECK;
		2642
		2643	++periodiccnt;
1969	ev_start (EV_A_ (W)w, ++periodiccnt);	2644	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1970	array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);	2645	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1971	periodics [periodiccnt] = (WT)w;	2646	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1972	upheap (periodics, periodiccnt);	2647	ANHE_at_cache (periodics [ev_active (w)]);
		2648	upheap (periodics, ev_active (w));
1973		2649
		2650	EV_FREQUENT_CHECK;
		2651
1974	/*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/	2652	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1975	}	2653	}
1976		2654
1977	void noinline	2655	void noinline
1978	ev_periodic_stop (EV_P_ ev_periodic *w)	2656	ev_periodic_stop (EV_P_ ev_periodic *w)
1979	{	2657	{
1980	clear_pending (EV_A_ (W)w);	2658	clear_pending (EV_A_ (W)w);
1981	if (expect_false (!ev_is_active (w)))	2659	if (expect_false (!ev_is_active (w)))
1982	return;	2660	return;
1983		2661
		2662	EV_FREQUENT_CHECK;
		2663
1984	{	2664	{
1985	int active = ev_active (w);	2665	int active = ev_active (w);
1986		2666
1987	assert (("internal periodic heap corruption", periodics [active] == (WT)w));	2667	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
1988		2668
		2669	--periodiccnt;
		2670
1989	if (expect_true (active < periodiccnt))	2671	if (expect_true (active < periodiccnt + HEAP0))
1990	{	2672	{
1991	periodics [active] = periodics [periodiccnt];	2673	periodics [active] = periodics [periodiccnt + HEAP0];
1992	adjustheap (periodics, periodiccnt, active);	2674	adjustheap (periodics, periodiccnt, active);
1993	}	2675	}
1994
1995	--periodiccnt;
1996	}	2676	}
		2677
		2678	EV_FREQUENT_CHECK;
1997		2679
1998	ev_stop (EV_A_ (W)w);	2680	ev_stop (EV_A_ (W)w);
1999	}	2681	}
2000		2682
2001	void noinline	2683	void noinline
…		…
2012	#endif	2694	#endif
2013		2695
2014	void noinline	2696	void noinline
2015	ev_signal_start (EV_P_ ev_signal *w)	2697	ev_signal_start (EV_P_ ev_signal *w)
2016	{	2698	{
2017	#if EV_MULTIPLICITY
2018	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2019	#endif
2020	if (expect_false (ev_is_active (w)))	2699	if (expect_false (ev_is_active (w)))
2021	return;	2700	return;
2022		2701
2023	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2702	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2024		2703
2025	evpipe_init (EV_A);	2704	#if EV_MULTIPLICITY
		2705	assert (("libev: a signal must not be attached to two different loops",
		2706	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2026		2707
		2708	signals [w->signum - 1].loop = EV_A;
		2709	#endif
		2710
		2711	EV_FREQUENT_CHECK;
		2712
		2713	#if EV_USE_SIGNALFD
		2714	if (sigfd == -2)
2027	{	2715	{
2028	#ifndef _WIN32	2716	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2029	sigset_t full, prev;	2717	if (sigfd < 0 && errno == EINVAL)
2030	sigfillset (&full);	2718	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2031	sigprocmask (SIG_SETMASK, &full, &prev);
2032	#endif
2033		2719
2034	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2720	if (sigfd >= 0)
		2721	{
		2722	fd_intern (sigfd); /* doing it twice will not hurt */
2035		2723
2036	#ifndef _WIN32	2724	sigemptyset (&sigfd_set);
2037	sigprocmask (SIG_SETMASK, &prev, 0);	2725
2038	#endif	2726	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2727	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2728	ev_io_start (EV_A_ &sigfd_w);
		2729	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2730	}
2039	}	2731	}
		2732
		2733	if (sigfd >= 0)
		2734	{
		2735	/* TODO: check .head */
		2736	sigaddset (&sigfd_set, w->signum);
		2737	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2738
		2739	signalfd (sigfd, &sigfd_set, 0);
		2740	}
		2741	#endif
2040		2742
2041	ev_start (EV_A_ (W)w, 1);	2743	ev_start (EV_A_ (W)w, 1);
2042	wlist_add (&signals [w->signum - 1].head, (WL)w);	2744	wlist_add (&signals [w->signum - 1].head, (WL)w);
2043		2745
2044	if (!((WL)w)->next)	2746	if (!((WL)w)->next)
		2747	# if EV_USE_SIGNALFD
		2748	if (sigfd < 0) /*TODO*/
		2749	# endif
2045	{	2750	{
2046	#if _WIN32	2751	# if _WIN32
		2752	evpipe_init (EV_A);
		2753
2047	signal (w->signum, ev_sighandler);	2754	signal (w->signum, ev_sighandler);
2048	#else	2755	# else
2049	struct sigaction sa;	2756	struct sigaction sa;
		2757
		2758	evpipe_init (EV_A);
		2759
2050	sa.sa_handler = ev_sighandler;	2760	sa.sa_handler = ev_sighandler;
2051	sigfillset (&sa.sa_mask);	2761	sigfillset (&sa.sa_mask);
2052	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2762	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2053	sigaction (w->signum, &sa, 0);	2763	sigaction (w->signum, &sa, 0);
		2764
		2765	sigemptyset (&sa.sa_mask);
		2766	sigaddset (&sa.sa_mask, w->signum);
		2767	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2054	#endif	2768	#endif
2055	}	2769	}
		2770
		2771	EV_FREQUENT_CHECK;
2056	}	2772	}
2057		2773
2058	void noinline	2774	void noinline
2059	ev_signal_stop (EV_P_ ev_signal *w)	2775	ev_signal_stop (EV_P_ ev_signal *w)
2060	{	2776	{
2061	clear_pending (EV_A_ (W)w);	2777	clear_pending (EV_A_ (W)w);
2062	if (expect_false (!ev_is_active (w)))	2778	if (expect_false (!ev_is_active (w)))
2063	return;	2779	return;
2064		2780
		2781	EV_FREQUENT_CHECK;
		2782
2065	wlist_del (&signals [w->signum - 1].head, (WL)w);	2783	wlist_del (&signals [w->signum - 1].head, (WL)w);
2066	ev_stop (EV_A_ (W)w);	2784	ev_stop (EV_A_ (W)w);
2067		2785
2068	if (!signals [w->signum - 1].head)	2786	if (!signals [w->signum - 1].head)
		2787	{
		2788	#if EV_MULTIPLICITY
		2789	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2790	#endif
		2791	#if EV_USE_SIGNALFD
		2792	if (sigfd >= 0)
		2793	{
		2794	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2795	sigdelset (&sigfd_set, w->signum);
		2796	signalfd (sigfd, &sigfd_set, 0);
		2797	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2798	/*TODO: maybe unblock signal? */
		2799	}
		2800	else
		2801	#endif
2069	signal (w->signum, SIG_DFL);	2802	signal (w->signum, SIG_DFL);
		2803	}
		2804
		2805	EV_FREQUENT_CHECK;
2070	}	2806	}
2071		2807
2072	void	2808	void
2073	ev_child_start (EV_P_ ev_child *w)	2809	ev_child_start (EV_P_ ev_child *w)
2074	{	2810	{
2075	#if EV_MULTIPLICITY	2811	#if EV_MULTIPLICITY
2076	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2812	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2077	#endif	2813	#endif
2078	if (expect_false (ev_is_active (w)))	2814	if (expect_false (ev_is_active (w)))
2079	return;	2815	return;
2080		2816
		2817	EV_FREQUENT_CHECK;
		2818
2081	ev_start (EV_A_ (W)w, 1);	2819	ev_start (EV_A_ (W)w, 1);
2082	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2820	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2821
		2822	EV_FREQUENT_CHECK;
2083	}	2823	}
2084		2824
2085	void	2825	void
2086	ev_child_stop (EV_P_ ev_child *w)	2826	ev_child_stop (EV_P_ ev_child *w)
2087	{	2827	{
2088	clear_pending (EV_A_ (W)w);	2828	clear_pending (EV_A_ (W)w);
2089	if (expect_false (!ev_is_active (w)))	2829	if (expect_false (!ev_is_active (w)))
2090	return;	2830	return;
2091		2831
		2832	EV_FREQUENT_CHECK;
		2833
2092	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2834	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2093	ev_stop (EV_A_ (W)w);	2835	ev_stop (EV_A_ (W)w);
		2836
		2837	EV_FREQUENT_CHECK;
2094	}	2838	}
2095		2839
2096	#if EV_STAT_ENABLE	2840	#if EV_STAT_ENABLE
2097		2841
2098	# ifdef _WIN32	2842	# ifdef _WIN32
2099	# undef lstat	2843	# undef lstat
2100	# define lstat(a,b) _stati64 (a,b)	2844	# define lstat(a,b) _stati64 (a,b)
2101	# endif	2845	# endif
2102		2846
2103	#define DEF_STAT_INTERVAL 5.0074891	2847	#define DEF_STAT_INTERVAL 5.0074891
		2848	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2104	#define MIN_STAT_INTERVAL 0.1074891	2849	#define MIN_STAT_INTERVAL 0.1074891
2105		2850
2106	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2851	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2107		2852
2108	#if EV_USE_INOTIFY	2853	#if EV_USE_INOTIFY
2109	# define EV_INOTIFY_BUFSIZE 8192	2854	# define EV_INOTIFY_BUFSIZE 8192
…		…
2113	{	2858	{
2114	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);	2859	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);
2115		2860
2116	if (w->wd < 0)	2861	if (w->wd < 0)
2117	{	2862	{
		2863	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2118	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2864	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2119		2865
2120	/* monitor some parent directory for speedup hints */	2866	/* monitor some parent directory for speedup hints */
2121	/* note that exceeding the hardcoded limit is not a correctness issue, */	2867	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2122	/* but an efficiency issue only */	2868	/* but an efficiency issue only */
2123	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2869	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2124	{	2870	{
2125	char path [4096];	2871	char path [4096];
2126	strcpy (path, w->path);	2872	strcpy (path, w->path);
…		…
2130	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2876	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2131	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2877	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2132		2878
2133	char *pend = strrchr (path, '/');	2879	char *pend = strrchr (path, '/');
2134		2880
2135	if (!pend)	2881	if (!pend || pend == path)
2136	break; /* whoops, no '/', complain to your admin */	2882	break;
2137		2883
2138	*pend = 0;	2884	*pend = 0;
2139	w->wd = inotify_add_watch (fs_fd, path, mask);	2885	w->wd = inotify_add_watch (fs_fd, path, mask);
2140	}	2886	}
2141	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2887	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2142	}	2888	}
2143	}	2889	}
2144	else
2145	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2146		2890
2147	if (w->wd >= 0)	2891	if (w->wd >= 0)
		2892	{
		2893	struct statfs sfs;
		2894
2148	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2895	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2896
		2897	/* now local changes will be tracked by inotify, but remote changes won't */
		2898	/* unless the filesystem is known to be local, we therefore still poll */
		2899	/* also do poll on <2.6.25, but with normal frequency */
		2900
		2901	if (fs_2625 && !statfs (w->path, &sfs))
		2902	if (sfs.f_type == 0x1373 /* devfs */
		2903	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2904	|| sfs.f_type == 0x3153464a /* jfs */
		2905	|| sfs.f_type == 0x52654973 /* reiser3 */
		2906	|| sfs.f_type == 0x01021994 /* tempfs */
		2907	|| sfs.f_type == 0x58465342 /* xfs */)
		2908	return;
		2909
		2910	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2911	ev_timer_again (EV_A_ &w->timer);
		2912	}
2149	}	2913	}
2150		2914
2151	static void noinline	2915	static void noinline
2152	infy_del (EV_P_ ev_stat *w)	2916	infy_del (EV_P_ ev_stat *w)
2153	{	2917	{
…		…
2167		2931
2168	static void noinline	2932	static void noinline
2169	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2933	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2170	{	2934	{
2171	if (slot < 0)	2935	if (slot < 0)
2172	/* overflow, need to check for all hahs slots */	2936	/* overflow, need to check for all hash slots */
2173	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2937	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2174	infy_wd (EV_A_ slot, wd, ev);	2938	infy_wd (EV_A_ slot, wd, ev);
2175	else	2939	else
2176	{	2940	{
2177	WL w_;	2941	WL w_;
…		…
2183		2947
2184	if (w->wd == wd || wd == -1)	2948	if (w->wd == wd || wd == -1)
2185	{	2949	{
2186	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2950	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2187	{	2951	{
		2952	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2188	w->wd = -1;	2953	w->wd = -1;
2189	infy_add (EV_A_ w); /* re-add, no matter what */	2954	infy_add (EV_A_ w); /* re-add, no matter what */
2190	}	2955	}
2191		2956
2192	stat_timer_cb (EV_A_ &w->timer, 0);	2957	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2205		2970
2206	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2971	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2207	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2972	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2208	}	2973	}
2209		2974
2210	void inline_size	2975	inline_size void
		2976	check_2625 (EV_P)
		2977	{
		2978	/* kernels < 2.6.25 are borked
		2979	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2980	*/
		2981	struct utsname buf;
		2982	int major, minor, micro;
		2983
		2984	if (uname (&buf))
		2985	return;
		2986
		2987	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2988	return;
		2989
		2990	if (major < 2
		2991	|| (major == 2 && minor < 6)
		2992	|| (major == 2 && minor == 6 && micro < 25))
		2993	return;
		2994
		2995	fs_2625 = 1;
		2996	}
		2997
		2998	inline_size int
		2999	infy_newfd (void)
		3000	{
		3001	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3002	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3003	if (fd >= 0)
		3004	return fd;
		3005	#endif
		3006	return inotify_init ();
		3007	}
		3008
		3009	inline_size void
2211	infy_init (EV_P)	3010	infy_init (EV_P)
2212	{	3011	{
2213	if (fs_fd != -2)	3012	if (fs_fd != -2)
2214	return;	3013	return;
2215		3014
		3015	fs_fd = -1;
		3016
		3017	check_2625 (EV_A);
		3018
2216	fs_fd = inotify_init ();	3019	fs_fd = infy_newfd ();
2217		3020
2218	if (fs_fd >= 0)	3021	if (fs_fd >= 0)
2219	{	3022	{
		3023	fd_intern (fs_fd);
2220	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3024	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2221	ev_set_priority (&fs_w, EV_MAXPRI);	3025	ev_set_priority (&fs_w, EV_MAXPRI);
2222	ev_io_start (EV_A_ &fs_w);	3026	ev_io_start (EV_A_ &fs_w);
		3027	ev_unref (EV_A);
2223	}	3028	}
2224	}	3029	}
2225		3030
2226	void inline_size	3031	inline_size void
2227	infy_fork (EV_P)	3032	infy_fork (EV_P)
2228	{	3033	{
2229	int slot;	3034	int slot;
2230		3035
2231	if (fs_fd < 0)	3036	if (fs_fd < 0)
2232	return;	3037	return;
2233		3038
		3039	ev_ref (EV_A);
		3040	ev_io_stop (EV_A_ &fs_w);
2234	close (fs_fd);	3041	close (fs_fd);
2235	fs_fd = inotify_init ();	3042	fs_fd = infy_newfd ();
		3043
		3044	if (fs_fd >= 0)
		3045	{
		3046	fd_intern (fs_fd);
		3047	ev_io_set (&fs_w, fs_fd, EV_READ);
		3048	ev_io_start (EV_A_ &fs_w);
		3049	ev_unref (EV_A);
		3050	}
2236		3051
2237	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3052	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2238	{	3053	{
2239	WL w_ = fs_hash [slot].head;	3054	WL w_ = fs_hash [slot].head;
2240	fs_hash [slot].head = 0;	3055	fs_hash [slot].head = 0;
…		…
2247	w->wd = -1;	3062	w->wd = -1;
2248		3063
2249	if (fs_fd >= 0)	3064	if (fs_fd >= 0)
2250	infy_add (EV_A_ w); /* re-add, no matter what */	3065	infy_add (EV_A_ w); /* re-add, no matter what */
2251	else	3066	else
2252	ev_timer_start (EV_A_ &w->timer);	3067	ev_timer_again (EV_A_ &w->timer);
2253	}	3068	}
2254
2255	}	3069	}
2256	}	3070	}
2257		3071
		3072	#endif
		3073
		3074	#ifdef _WIN32
		3075	# define EV_LSTAT(p,b) _stati64 (p, b)
		3076	#else
		3077	# define EV_LSTAT(p,b) lstat (p, b)
2258	#endif	3078	#endif
2259		3079
2260	void	3080	void
2261	ev_stat_stat (EV_P_ ev_stat *w)	3081	ev_stat_stat (EV_P_ ev_stat *w)
2262	{	3082	{
…		…
2289	|| w->prev.st_atime != w->attr.st_atime	3109	|| w->prev.st_atime != w->attr.st_atime
2290	|| w->prev.st_mtime != w->attr.st_mtime	3110	|| w->prev.st_mtime != w->attr.st_mtime
2291	|| w->prev.st_ctime != w->attr.st_ctime	3111	|| w->prev.st_ctime != w->attr.st_ctime
2292	) {	3112	) {
2293	#if EV_USE_INOTIFY	3113	#if EV_USE_INOTIFY
		3114	if (fs_fd >= 0)
		3115	{
2294	infy_del (EV_A_ w);	3116	infy_del (EV_A_ w);
2295	infy_add (EV_A_ w);	3117	infy_add (EV_A_ w);
2296	ev_stat_stat (EV_A_ w); /* avoid race... */	3118	ev_stat_stat (EV_A_ w); /* avoid race... */
		3119	}
2297	#endif	3120	#endif
2298		3121
2299	ev_feed_event (EV_A_ w, EV_STAT);	3122	ev_feed_event (EV_A_ w, EV_STAT);
2300	}	3123	}
2301	}	3124	}
…		…
2304	ev_stat_start (EV_P_ ev_stat *w)	3127	ev_stat_start (EV_P_ ev_stat *w)
2305	{	3128	{
2306	if (expect_false (ev_is_active (w)))	3129	if (expect_false (ev_is_active (w)))
2307	return;	3130	return;
2308		3131
2309	/* since we use memcmp, we need to clear any padding data etc. */
2310	memset (&w->prev, 0, sizeof (ev_statdata));
2311	memset (&w->attr, 0, sizeof (ev_statdata));
2312
2313	ev_stat_stat (EV_A_ w);	3132	ev_stat_stat (EV_A_ w);
2314		3133
		3134	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2315	if (w->interval < MIN_STAT_INTERVAL)	3135	w->interval = MIN_STAT_INTERVAL;
2316	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2317		3136
2318	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	3137	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2319	ev_set_priority (&w->timer, ev_priority (w));	3138	ev_set_priority (&w->timer, ev_priority (w));
2320		3139
2321	#if EV_USE_INOTIFY	3140	#if EV_USE_INOTIFY
2322	infy_init (EV_A);	3141	infy_init (EV_A);
2323		3142
2324	if (fs_fd >= 0)	3143	if (fs_fd >= 0)
2325	infy_add (EV_A_ w);	3144	infy_add (EV_A_ w);
2326	else	3145	else
2327	#endif	3146	#endif
2328	ev_timer_start (EV_A_ &w->timer);	3147	ev_timer_again (EV_A_ &w->timer);
2329		3148
2330	ev_start (EV_A_ (W)w, 1);	3149	ev_start (EV_A_ (W)w, 1);
		3150
		3151	EV_FREQUENT_CHECK;
2331	}	3152	}
2332		3153
2333	void	3154	void
2334	ev_stat_stop (EV_P_ ev_stat *w)	3155	ev_stat_stop (EV_P_ ev_stat *w)
2335	{	3156	{
2336	clear_pending (EV_A_ (W)w);	3157	clear_pending (EV_A_ (W)w);
2337	if (expect_false (!ev_is_active (w)))	3158	if (expect_false (!ev_is_active (w)))
2338	return;	3159	return;
2339		3160
		3161	EV_FREQUENT_CHECK;
		3162
2340	#if EV_USE_INOTIFY	3163	#if EV_USE_INOTIFY
2341	infy_del (EV_A_ w);	3164	infy_del (EV_A_ w);
2342	#endif	3165	#endif
2343	ev_timer_stop (EV_A_ &w->timer);	3166	ev_timer_stop (EV_A_ &w->timer);
2344		3167
2345	ev_stop (EV_A_ (W)w);	3168	ev_stop (EV_A_ (W)w);
		3169
		3170	EV_FREQUENT_CHECK;
2346	}	3171	}
2347	#endif	3172	#endif
2348		3173
2349	#if EV_IDLE_ENABLE	3174	#if EV_IDLE_ENABLE
2350	void	3175	void
…		…
2352	{	3177	{
2353	if (expect_false (ev_is_active (w)))	3178	if (expect_false (ev_is_active (w)))
2354	return;	3179	return;
2355		3180
2356	pri_adjust (EV_A_ (W)w);	3181	pri_adjust (EV_A_ (W)w);
		3182
		3183	EV_FREQUENT_CHECK;
2357		3184
2358	{	3185	{
2359	int active = ++idlecnt [ABSPRI (w)];	3186	int active = ++idlecnt [ABSPRI (w)];
2360		3187
2361	++idleall;	3188	++idleall;
2362	ev_start (EV_A_ (W)w, active);	3189	ev_start (EV_A_ (W)w, active);
2363		3190
2364	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	3191	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2365	idles [ABSPRI (w)][active - 1] = w;	3192	idles [ABSPRI (w)][active - 1] = w;
2366	}	3193	}
		3194
		3195	EV_FREQUENT_CHECK;
2367	}	3196	}
2368		3197
2369	void	3198	void
2370	ev_idle_stop (EV_P_ ev_idle *w)	3199	ev_idle_stop (EV_P_ ev_idle *w)
2371	{	3200	{
2372	clear_pending (EV_A_ (W)w);	3201	clear_pending (EV_A_ (W)w);
2373	if (expect_false (!ev_is_active (w)))	3202	if (expect_false (!ev_is_active (w)))
2374	return;	3203	return;
2375		3204
		3205	EV_FREQUENT_CHECK;
		3206
2376	{	3207	{
2377	int active = ev_active (w);	3208	int active = ev_active (w);
2378		3209
2379	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	3210	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2380	ev_active (idles [ABSPRI (w)][active - 1]) = active;	3211	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2381		3212
2382	ev_stop (EV_A_ (W)w);	3213	ev_stop (EV_A_ (W)w);
2383	--idleall;	3214	--idleall;
2384	}	3215	}
		3216
		3217	EV_FREQUENT_CHECK;
2385	}	3218	}
2386	#endif	3219	#endif
2387		3220
2388	void	3221	void
2389	ev_prepare_start (EV_P_ ev_prepare *w)	3222	ev_prepare_start (EV_P_ ev_prepare *w)
2390	{	3223	{
2391	if (expect_false (ev_is_active (w)))	3224	if (expect_false (ev_is_active (w)))
2392	return;	3225	return;
		3226
		3227	EV_FREQUENT_CHECK;
2393		3228
2394	ev_start (EV_A_ (W)w, ++preparecnt);	3229	ev_start (EV_A_ (W)w, ++preparecnt);
2395	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	3230	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2396	prepares [preparecnt - 1] = w;	3231	prepares [preparecnt - 1] = w;
		3232
		3233	EV_FREQUENT_CHECK;
2397	}	3234	}
2398		3235
2399	void	3236	void
2400	ev_prepare_stop (EV_P_ ev_prepare *w)	3237	ev_prepare_stop (EV_P_ ev_prepare *w)
2401	{	3238	{
2402	clear_pending (EV_A_ (W)w);	3239	clear_pending (EV_A_ (W)w);
2403	if (expect_false (!ev_is_active (w)))	3240	if (expect_false (!ev_is_active (w)))
2404	return;	3241	return;
2405		3242
		3243	EV_FREQUENT_CHECK;
		3244
2406	{	3245	{
2407	int active = ev_active (w);	3246	int active = ev_active (w);
2408		3247
2409	prepares [active - 1] = prepares [--preparecnt];	3248	prepares [active - 1] = prepares [--preparecnt];
2410	ev_active (prepares [active - 1]) = active;	3249	ev_active (prepares [active - 1]) = active;
2411	}	3250	}
2412		3251
2413	ev_stop (EV_A_ (W)w);	3252	ev_stop (EV_A_ (W)w);
		3253
		3254	EV_FREQUENT_CHECK;
2414	}	3255	}
2415		3256
2416	void	3257	void
2417	ev_check_start (EV_P_ ev_check *w)	3258	ev_check_start (EV_P_ ev_check *w)
2418	{	3259	{
2419	if (expect_false (ev_is_active (w)))	3260	if (expect_false (ev_is_active (w)))
2420	return;	3261	return;
		3262
		3263	EV_FREQUENT_CHECK;
2421		3264
2422	ev_start (EV_A_ (W)w, ++checkcnt);	3265	ev_start (EV_A_ (W)w, ++checkcnt);
2423	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	3266	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2424	checks [checkcnt - 1] = w;	3267	checks [checkcnt - 1] = w;
		3268
		3269	EV_FREQUENT_CHECK;
2425	}	3270	}
2426		3271
2427	void	3272	void
2428	ev_check_stop (EV_P_ ev_check *w)	3273	ev_check_stop (EV_P_ ev_check *w)
2429	{	3274	{
2430	clear_pending (EV_A_ (W)w);	3275	clear_pending (EV_A_ (W)w);
2431	if (expect_false (!ev_is_active (w)))	3276	if (expect_false (!ev_is_active (w)))
2432	return;	3277	return;
2433		3278
		3279	EV_FREQUENT_CHECK;
		3280
2434	{	3281	{
2435	int active = ev_active (w);	3282	int active = ev_active (w);
2436		3283
2437	checks [active - 1] = checks [--checkcnt];	3284	checks [active - 1] = checks [--checkcnt];
2438	ev_active (checks [active - 1]) = active;	3285	ev_active (checks [active - 1]) = active;
2439	}	3286	}
2440		3287
2441	ev_stop (EV_A_ (W)w);	3288	ev_stop (EV_A_ (W)w);
		3289
		3290	EV_FREQUENT_CHECK;
2442	}	3291	}
2443		3292
2444	#if EV_EMBED_ENABLE	3293	#if EV_EMBED_ENABLE
2445	void noinline	3294	void noinline
2446	ev_embed_sweep (EV_P_ ev_embed *w)	3295	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2463	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3312	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2464	{	3313	{
2465	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3314	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2466		3315
2467	{	3316	{
2468	struct ev_loop *loop = w->other;	3317	EV_P = w->other;
2469		3318
2470	while (fdchangecnt)	3319	while (fdchangecnt)
2471	{	3320	{
2472	fd_reify (EV_A);	3321	fd_reify (EV_A);
2473	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3322	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2474	}	3323	}
2475	}	3324	}
2476	}	3325	}
2477		3326
		3327	static void
		3328	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3329	{
		3330	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3331
		3332	ev_embed_stop (EV_A_ w);
		3333
		3334	{
		3335	EV_P = w->other;
		3336
		3337	ev_loop_fork (EV_A);
		3338	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3339	}
		3340
		3341	ev_embed_start (EV_A_ w);
		3342	}
		3343
2478	#if 0	3344	#if 0
2479	static void	3345	static void
2480	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3346	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2481	{	3347	{
2482	ev_idle_stop (EV_A_ idle);	3348	ev_idle_stop (EV_A_ idle);
…		…
2488	{	3354	{
2489	if (expect_false (ev_is_active (w)))	3355	if (expect_false (ev_is_active (w)))
2490	return;	3356	return;
2491		3357
2492	{	3358	{
2493	struct ev_loop *loop = w->other;	3359	EV_P = w->other;
2494	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3360	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2495	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3361	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2496	}	3362	}
		3363
		3364	EV_FREQUENT_CHECK;
2497		3365
2498	ev_set_priority (&w->io, ev_priority (w));	3366	ev_set_priority (&w->io, ev_priority (w));
2499	ev_io_start (EV_A_ &w->io);	3367	ev_io_start (EV_A_ &w->io);
2500		3368
2501	ev_prepare_init (&w->prepare, embed_prepare_cb);	3369	ev_prepare_init (&w->prepare, embed_prepare_cb);
2502	ev_set_priority (&w->prepare, EV_MINPRI);	3370	ev_set_priority (&w->prepare, EV_MINPRI);
2503	ev_prepare_start (EV_A_ &w->prepare);	3371	ev_prepare_start (EV_A_ &w->prepare);
2504		3372
		3373	ev_fork_init (&w->fork, embed_fork_cb);
		3374	ev_fork_start (EV_A_ &w->fork);
		3375
2505	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3376	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2506		3377
2507	ev_start (EV_A_ (W)w, 1);	3378	ev_start (EV_A_ (W)w, 1);
		3379
		3380	EV_FREQUENT_CHECK;
2508	}	3381	}
2509		3382
2510	void	3383	void
2511	ev_embed_stop (EV_P_ ev_embed *w)	3384	ev_embed_stop (EV_P_ ev_embed *w)
2512	{	3385	{
2513	clear_pending (EV_A_ (W)w);	3386	clear_pending (EV_A_ (W)w);
2514	if (expect_false (!ev_is_active (w)))	3387	if (expect_false (!ev_is_active (w)))
2515	return;	3388	return;
2516		3389
		3390	EV_FREQUENT_CHECK;
		3391
2517	ev_io_stop (EV_A_ &w->io);	3392	ev_io_stop (EV_A_ &w->io);
2518	ev_prepare_stop (EV_A_ &w->prepare);	3393	ev_prepare_stop (EV_A_ &w->prepare);
		3394	ev_fork_stop (EV_A_ &w->fork);
2519		3395
2520	ev_stop (EV_A_ (W)w);	3396	EV_FREQUENT_CHECK;
2521	}	3397	}
2522	#endif	3398	#endif
2523		3399
2524	#if EV_FORK_ENABLE	3400	#if EV_FORK_ENABLE
2525	void	3401	void
2526	ev_fork_start (EV_P_ ev_fork *w)	3402	ev_fork_start (EV_P_ ev_fork *w)
2527	{	3403	{
2528	if (expect_false (ev_is_active (w)))	3404	if (expect_false (ev_is_active (w)))
2529	return;	3405	return;
		3406
		3407	EV_FREQUENT_CHECK;
2530		3408
2531	ev_start (EV_A_ (W)w, ++forkcnt);	3409	ev_start (EV_A_ (W)w, ++forkcnt);
2532	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	3410	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2533	forks [forkcnt - 1] = w;	3411	forks [forkcnt - 1] = w;
		3412
		3413	EV_FREQUENT_CHECK;
2534	}	3414	}
2535		3415
2536	void	3416	void
2537	ev_fork_stop (EV_P_ ev_fork *w)	3417	ev_fork_stop (EV_P_ ev_fork *w)
2538	{	3418	{
2539	clear_pending (EV_A_ (W)w);	3419	clear_pending (EV_A_ (W)w);
2540	if (expect_false (!ev_is_active (w)))	3420	if (expect_false (!ev_is_active (w)))
2541	return;	3421	return;
2542		3422
		3423	EV_FREQUENT_CHECK;
		3424
2543	{	3425	{
2544	int active = ev_active (w);	3426	int active = ev_active (w);
2545		3427
2546	forks [active - 1] = forks [--forkcnt];	3428	forks [active - 1] = forks [--forkcnt];
2547	ev_active (forks [active - 1]) = active;	3429	ev_active (forks [active - 1]) = active;
2548	}	3430	}
2549		3431
2550	ev_stop (EV_A_ (W)w);	3432	ev_stop (EV_A_ (W)w);
		3433
		3434	EV_FREQUENT_CHECK;
2551	}	3435	}
2552	#endif	3436	#endif
2553		3437
2554	#if EV_ASYNC_ENABLE	3438	#if EV_ASYNC_ENABLE
2555	void	3439	void
…		…
2557	{	3441	{
2558	if (expect_false (ev_is_active (w)))	3442	if (expect_false (ev_is_active (w)))
2559	return;	3443	return;
2560		3444
2561	evpipe_init (EV_A);	3445	evpipe_init (EV_A);
		3446
		3447	EV_FREQUENT_CHECK;
2562		3448
2563	ev_start (EV_A_ (W)w, ++asynccnt);	3449	ev_start (EV_A_ (W)w, ++asynccnt);
2564	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3450	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2565	asyncs [asynccnt - 1] = w;	3451	asyncs [asynccnt - 1] = w;
		3452
		3453	EV_FREQUENT_CHECK;
2566	}	3454	}
2567		3455
2568	void	3456	void
2569	ev_async_stop (EV_P_ ev_async *w)	3457	ev_async_stop (EV_P_ ev_async *w)
2570	{	3458	{
2571	clear_pending (EV_A_ (W)w);	3459	clear_pending (EV_A_ (W)w);
2572	if (expect_false (!ev_is_active (w)))	3460	if (expect_false (!ev_is_active (w)))
2573	return;	3461	return;
2574		3462
		3463	EV_FREQUENT_CHECK;
		3464
2575	{	3465	{
2576	int active = ev_active (w);	3466	int active = ev_active (w);
2577		3467
2578	asyncs [active - 1] = asyncs [--asynccnt];	3468	asyncs [active - 1] = asyncs [--asynccnt];
2579	ev_active (asyncs [active - 1]) = active;	3469	ev_active (asyncs [active - 1]) = active;
2580	}	3470	}
2581		3471
2582	ev_stop (EV_A_ (W)w);	3472	ev_stop (EV_A_ (W)w);
		3473
		3474	EV_FREQUENT_CHECK;
2583	}	3475	}
2584		3476
2585	void	3477	void
2586	ev_async_send (EV_P_ ev_async *w)	3478	ev_async_send (EV_P_ ev_async *w)
2587	{	3479	{
2588	w->sent = 1;	3480	w->sent = 1;
2589	evpipe_write (EV_A_ &gotasync);	3481	evpipe_write (EV_A_ &async_pending);
2590	}	3482	}
2591	#endif	3483	#endif
2592		3484
2593	/*****************************************************************************/	3485	/*****************************************************************************/
2594		3486
…		…
2604	once_cb (EV_P_ struct ev_once *once, int revents)	3496	once_cb (EV_P_ struct ev_once *once, int revents)
2605	{	3497	{
2606	void (*cb)(int revents, void *arg) = once->cb;	3498	void (*cb)(int revents, void *arg) = once->cb;
2607	void *arg = once->arg;	3499	void *arg = once->arg;
2608		3500
2609	ev_io_stop (EV_A_ &once->io);	3501	ev_io_stop (EV_A_ &once->io);
2610	ev_timer_stop (EV_A_ &once->to);	3502	ev_timer_stop (EV_A_ &once->to);
2611	ev_free (once);	3503	ev_free (once);
2612		3504
2613	cb (revents, arg);	3505	cb (revents, arg);
2614	}	3506	}
2615		3507
2616	static void	3508	static void
2617	once_cb_io (EV_P_ ev_io *w, int revents)	3509	once_cb_io (EV_P_ ev_io *w, int revents)
2618	{	3510	{
2619	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3511	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3512
		3513	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2620	}	3514	}
2621		3515
2622	static void	3516	static void
2623	once_cb_to (EV_P_ ev_timer *w, int revents)	3517	once_cb_to (EV_P_ ev_timer *w, int revents)
2624	{	3518	{
2625	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3519	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3520
		3521	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2626	}	3522	}
2627		3523
2628	void	3524	void
2629	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3525	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2630	{	3526	{
…		…
2652	ev_timer_set (&once->to, timeout, 0.);	3548	ev_timer_set (&once->to, timeout, 0.);
2653	ev_timer_start (EV_A_ &once->to);	3549	ev_timer_start (EV_A_ &once->to);
2654	}	3550	}
2655	}	3551	}
2656		3552
		3553	/*****************************************************************************/
		3554
		3555	#if EV_WALK_ENABLE
		3556	void
		3557	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3558	{
		3559	int i, j;
		3560	ev_watcher_list *wl, *wn;
		3561
		3562	if (types & (EV_IO | EV_EMBED))
		3563	for (i = 0; i < anfdmax; ++i)
		3564	for (wl = anfds [i].head; wl; )
		3565	{
		3566	wn = wl->next;
		3567
		3568	#if EV_EMBED_ENABLE
		3569	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3570	{
		3571	if (types & EV_EMBED)
		3572	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3573	}
		3574	else
		3575	#endif
		3576	#if EV_USE_INOTIFY
		3577	if (ev_cb ((ev_io *)wl) == infy_cb)
		3578	;
		3579	else
		3580	#endif
		3581	if ((ev_io *)wl != &pipe_w)
		3582	if (types & EV_IO)
		3583	cb (EV_A_ EV_IO, wl);
		3584
		3585	wl = wn;
		3586	}
		3587
		3588	if (types & (EV_TIMER | EV_STAT))
		3589	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3590	#if EV_STAT_ENABLE
		3591	/*TODO: timer is not always active*/
		3592	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3593	{
		3594	if (types & EV_STAT)
		3595	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3596	}
		3597	else
		3598	#endif
		3599	if (types & EV_TIMER)
		3600	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3601
		3602	#if EV_PERIODIC_ENABLE
		3603	if (types & EV_PERIODIC)
		3604	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3605	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3606	#endif
		3607
		3608	#if EV_IDLE_ENABLE
		3609	if (types & EV_IDLE)
		3610	for (j = NUMPRI; i--; )
		3611	for (i = idlecnt [j]; i--; )
		3612	cb (EV_A_ EV_IDLE, idles [j][i]);
		3613	#endif
		3614
		3615	#if EV_FORK_ENABLE
		3616	if (types & EV_FORK)
		3617	for (i = forkcnt; i--; )
		3618	if (ev_cb (forks [i]) != embed_fork_cb)
		3619	cb (EV_A_ EV_FORK, forks [i]);
		3620	#endif
		3621
		3622	#if EV_ASYNC_ENABLE
		3623	if (types & EV_ASYNC)
		3624	for (i = asynccnt; i--; )
		3625	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3626	#endif
		3627
		3628	if (types & EV_PREPARE)
		3629	for (i = preparecnt; i--; )
		3630	#if EV_EMBED_ENABLE
		3631	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3632	#endif
		3633	cb (EV_A_ EV_PREPARE, prepares [i]);
		3634
		3635	if (types & EV_CHECK)
		3636	for (i = checkcnt; i--; )
		3637	cb (EV_A_ EV_CHECK, checks [i]);
		3638
		3639	if (types & EV_SIGNAL)
		3640	for (i = 0; i < EV_NSIG - 1; ++i)
		3641	for (wl = signals [i].head; wl; )
		3642	{
		3643	wn = wl->next;
		3644	cb (EV_A_ EV_SIGNAL, wl);
		3645	wl = wn;
		3646	}
		3647
		3648	if (types & EV_CHILD)
		3649	for (i = EV_PID_HASHSIZE; i--; )
		3650	for (wl = childs [i]; wl; )
		3651	{
		3652	wn = wl->next;
		3653	cb (EV_A_ EV_CHILD, wl);
		3654	wl = wn;
		3655	}
		3656	/* EV_STAT 0x00001000 /* stat data changed */
		3657	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3658	}
		3659	#endif
		3660
2657	#if EV_MULTIPLICITY	3661	#if EV_MULTIPLICITY
2658	#include "ev_wrap.h"	3662	#include "ev_wrap.h"
2659	#endif	3663	#endif
2660		3664
2661	#ifdef __cplusplus	3665	#ifdef __cplusplus

Diff Legend

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