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Comparing libev/ev.c (file contents):
Revision 1.283 by root, Wed Apr 15 09:51:19 2009 UTC vs.
Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
57	# endif	57	# endif
58	# ifndef EV_USE_MONOTONIC	58	# ifndef EV_USE_MONOTONIC
59	# define EV_USE_MONOTONIC 1	59	# define EV_USE_MONOTONIC 1
60	# endif	60	# endif
61	# endif	61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
62	# endif	64	# endif
63		65
64	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
65	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
66	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
…		…
108	# define EV_USE_EPOLL 0	110	# define EV_USE_EPOLL 0
109	# endif	111	# endif
110	# endif	112	# endif
111		113
112	# ifndef EV_USE_KQUEUE	114	# ifndef EV_USE_KQUEUE
113	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE 1
115	# else	117	# else
116	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
117	# endif	119	# endif
118	# endif	120	# endif
…		…
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
133	# endif	135	# endif
134	# endif	136	# endif
135		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
		143	# endif
		144	# endif
		145
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
138	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
139	# else	149	# else
140	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
143		153
144	#endif	154	#endif
145		155
146	#include <math.h>	156	#include <math.h>
147	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
148	#include <fcntl.h>	159	#include <fcntl.h>
149	#include <stddef.h>	160	#include <stddef.h>
150		161
151	#include <stdio.h>	162	#include <stdio.h>
152		163
153	#include <assert.h>	164	#include <assert.h>
154	#include <errno.h>	165	#include <errno.h>
155	#include <sys/types.h>	166	#include <sys/types.h>
156	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
157		169
158	#include <signal.h>	170	#include <signal.h>
159		171
160	#ifdef EV_H	172	#ifdef EV_H
161	# include EV_H	173	# include EV_H
…		…
172	# define WIN32_LEAN_AND_MEAN	184	# define WIN32_LEAN_AND_MEAN
173	# include <windows.h>	185	# include <windows.h>
174	# ifndef EV_SELECT_IS_WINSOCKET	186	# ifndef EV_SELECT_IS_WINSOCKET
175	# define EV_SELECT_IS_WINSOCKET 1	187	# define EV_SELECT_IS_WINSOCKET 1
176	# endif	188	# endif
		189	# undef EV_AVOID_STDIO
177	#endif	190	#endif
178		191
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	192	/* this block tries to deduce configuration from header-defined symbols and defaults */
		193
		194	/* try to deduce the maximum number of signals on this platform */
		195	#if defined (EV_NSIG)
		196	/* use what's provided */
		197	#elif defined (NSIG)
		198	# define EV_NSIG (NSIG)
		199	#elif defined(_NSIG)
		200	# define EV_NSIG (_NSIG)
		201	#elif defined (SIGMAX)
		202	# define EV_NSIG (SIGMAX+1)
		203	#elif defined (SIG_MAX)
		204	# define EV_NSIG (SIG_MAX+1)
		205	#elif defined (_SIG_MAX)
		206	# define EV_NSIG (_SIG_MAX+1)
		207	#elif defined (MAXSIG)
		208	# define EV_NSIG (MAXSIG+1)
		209	#elif defined (MAX_SIG)
		210	# define EV_NSIG (MAX_SIG+1)
		211	#elif defined (SIGARRAYSIZE)
		212	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		213	#elif defined (_sys_nsig)
		214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		215	#else
		216	# error "unable to find value for NSIG, please report"
		217	/* to make it compile regardless, just remove the above line, */
		218	/* but consider reporting it, too! :) */
		219	# define EV_NSIG 65
		220	#endif
180		221
181	#ifndef EV_USE_CLOCK_SYSCALL	222	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	223	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	224	# define EV_USE_CLOCK_SYSCALL 1
184	# else	225	# else
…		…
264	# else	305	# else
265	# define EV_USE_EVENTFD 0	306	# define EV_USE_EVENTFD 0
266	# endif	307	# endif
267	#endif	308	#endif
268		309
		310	#ifndef EV_USE_SIGNALFD
		311	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		312	# define EV_USE_SIGNALFD 1
		313	# else
		314	# define EV_USE_SIGNALFD 0
		315	# endif
		316	#endif
		317
269	#if 0 /* debugging */	318	#if 0 /* debugging */
270	# define EV_VERIFY 3	319	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	320	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	321	# define EV_HEAP_CACHE_AT 1
273	#endif	322	#endif
…		…
282		331
283	#ifndef EV_HEAP_CACHE_AT	332	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	333	# define EV_HEAP_CACHE_AT !EV_MINIMAL
285	#endif	334	#endif
286		335
		336	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		337	/* which makes programs even slower. might work on other unices, too. */
		338	#if EV_USE_CLOCK_SYSCALL
		339	# include <syscall.h>
		340	# ifdef SYS_clock_gettime
		341	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		342	# undef EV_USE_MONOTONIC
		343	# define EV_USE_MONOTONIC 1
		344	# else
		345	# undef EV_USE_CLOCK_SYSCALL
		346	# define EV_USE_CLOCK_SYSCALL 0
		347	# endif
		348	#endif
		349
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	350	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
		351
		352	#ifdef _AIX
		353	/* AIX has a completely broken poll.h header */
		354	# undef EV_USE_POLL
		355	# define EV_USE_POLL 0
		356	#endif
288		357
289	#ifndef CLOCK_MONOTONIC	358	#ifndef CLOCK_MONOTONIC
290	# undef EV_USE_MONOTONIC	359	# undef EV_USE_MONOTONIC
291	# define EV_USE_MONOTONIC 0	360	# define EV_USE_MONOTONIC 0
292	#endif	361	#endif
…		…
320		389
321	#if EV_SELECT_IS_WINSOCKET	390	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	391	# include <winsock.h>
323	#endif	392	#endif
324		393
325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326	/* which makes programs even slower. might work on other unices, too. */
327	#if EV_USE_CLOCK_SYSCALL
328	# include <syscall.h>
329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330	# undef EV_USE_MONOTONIC
331	# define EV_USE_MONOTONIC 1
332	#endif
333
334	#if EV_USE_EVENTFD	394	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	395	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	396	# include <stdint.h>
		397	# ifndef EFD_NONBLOCK
		398	# define EFD_NONBLOCK O_NONBLOCK
		399	# endif
		400	# ifndef EFD_CLOEXEC
		401	# ifdef O_CLOEXEC
		402	# define EFD_CLOEXEC O_CLOEXEC
		403	# else
		404	# define EFD_CLOEXEC 02000000
		405	# endif
		406	# endif
337	# ifdef __cplusplus	407	# ifdef __cplusplus
338	extern "C" {	408	extern "C" {
339	# endif	409	# endif
340	int eventfd (unsigned int initval, int flags);	410	int (eventfd) (unsigned int initval, int flags);
341	# ifdef __cplusplus	411	# ifdef __cplusplus
342	}	412	}
343	# endif	413	# endif
344	#endif	414	#endif
		415
		416	#if EV_USE_SIGNALFD
		417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		418	# include <stdint.h>
		419	# ifndef SFD_NONBLOCK
		420	# define SFD_NONBLOCK O_NONBLOCK
		421	# endif
		422	# ifndef SFD_CLOEXEC
		423	# ifdef O_CLOEXEC
		424	# define SFD_CLOEXEC O_CLOEXEC
		425	# else
		426	# define SFD_CLOEXEC 02000000
		427	# endif
		428	# endif
		429	# ifdef __cplusplus
		430	extern "C" {
		431	# endif
		432	int signalfd (int fd, const sigset_t *mask, int flags);
		433
		434	struct signalfd_siginfo
		435	{
		436	uint32_t ssi_signo;
		437	char pad[128 - sizeof (uint32_t)];
		438	};
		439	# ifdef __cplusplus
		440	}
		441	# endif
		442	#endif
		443
345		444
346	/**/	445	/**/
347		446
348	#if EV_VERIFY >= 3	447	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	448	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
361	*/	460	*/
362	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	461	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363		462
364	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	463	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367		465
368	#if __GNUC__ >= 4	466	#if __GNUC__ >= 4
369	# define expect(expr,value) __builtin_expect ((expr),(value))	467	# define expect(expr,value) __builtin_expect ((expr),(value))
370	# define noinline __attribute__ ((noinline))	468	# define noinline __attribute__ ((noinline))
371	#else	469	#else
…		…
384	# define inline_speed static noinline	482	# define inline_speed static noinline
385	#else	483	#else
386	# define inline_speed static inline	484	# define inline_speed static inline
387	#endif	485	#endif
388		486
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	487	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		488
		489	#if EV_MINPRI == EV_MAXPRI
		490	# define ABSPRI(w) (((W)w), 0)
		491	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	492	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		493	#endif
391		494
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	495	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	496	#define EMPTY2(a,b) /* used to suppress some warnings */
394		497
395	typedef ev_watcher *W;	498	typedef ev_watcher *W;
…		…
407		510
408	#if EV_USE_MONOTONIC	511	#if EV_USE_MONOTONIC
409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	512	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
410	#endif	513	#endif
411		514
		515	#ifndef EV_FD_TO_WIN32_HANDLE
		516	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		517	#endif
		518	#ifndef EV_WIN32_HANDLE_TO_FD
		519	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		520	#endif
		521	#ifndef EV_WIN32_CLOSE_FD
		522	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		523	#endif
		524
412	#ifdef _WIN32	525	#ifdef _WIN32
413	# include "ev_win32.c"	526	# include "ev_win32.c"
414	#endif	527	#endif
415		528
416	/*****************************************************************************/	529	/*****************************************************************************/
		530
		531	#if EV_AVOID_STDIO
		532	static void noinline
		533	ev_printerr (const char *msg)
		534	{
		535	write (STDERR_FILENO, msg, strlen (msg));
		536	}
		537	#endif
417		538
418	static void (*syserr_cb)(const char *msg);	539	static void (*syserr_cb)(const char *msg);
419		540
420	void	541	void
421	ev_set_syserr_cb (void (*cb)(const char *msg))	542	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
431		552
432	if (syserr_cb)	553	if (syserr_cb)
433	syserr_cb (msg);	554	syserr_cb (msg);
434	else	555	else
435	{	556	{
		557	#if EV_AVOID_STDIO
		558	const char *err = strerror (errno);
		559
		560	ev_printerr (msg);
		561	ev_printerr (": ");
		562	ev_printerr (err);
		563	ev_printerr ("\n");
		564	#else
436	perror (msg);	565	perror (msg);
		566	#endif
437	abort ();	567	abort ();
438	}	568	}
439	}	569	}
440		570
441	static void *	571	static void *
442	ev_realloc_emul (void *ptr, long size)	572	ev_realloc_emul (void *ptr, long size)
443	{	573	{
		574	#if __GLIBC__
		575	return realloc (ptr, size);
		576	#else
444	/* some systems, notably openbsd and darwin, fail to properly	577	/* some systems, notably openbsd and darwin, fail to properly
445	* implement realloc (x, 0) (as required by both ansi c-98 and	578	* implement realloc (x, 0) (as required by both ansi c-89 and
446	* the single unix specification, so work around them here.	579	* the single unix specification, so work around them here.
447	*/	580	*/
448		581
449	if (size)	582	if (size)
450	return realloc (ptr, size);	583	return realloc (ptr, size);
451		584
452	free (ptr);	585	free (ptr);
453	return 0;	586	return 0;
		587	#endif
454	}	588	}
455		589
456	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	590	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
457		591
458	void	592	void
…		…
466	{	600	{
467	ptr = alloc (ptr, size);	601	ptr = alloc (ptr, size);
468		602
469	if (!ptr && size)	603	if (!ptr && size)
470	{	604	{
		605	#if EV_AVOID_STDIO
		606	ev_printerr ("libev: memory allocation failed, aborting.\n");
		607	#else
471	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	608	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		609	#endif
472	abort ();	610	abort ();
473	}	611	}
474		612
475	return ptr;	613	return ptr;
476	}	614	}
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	616	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	617	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		618
481	/*****************************************************************************/	619	/*****************************************************************************/
482		620
		621	/* set in reify when reification needed */
		622	#define EV_ANFD_REIFY 1
		623
		624	/* file descriptor info structure */
483	typedef struct	625	typedef struct
484	{	626	{
485	WL head;	627	WL head;
486	unsigned char events;	628	unsigned char events; /* the events watched for */
487	unsigned char reify;	629	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	630	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
489	unsigned char unused;	631	unsigned char unused;
490	#if EV_USE_EPOLL	632	#if EV_USE_EPOLL
491	unsigned int egen; /* generation counter to counter epoll bugs */	633	unsigned int egen; /* generation counter to counter epoll bugs */
492	#endif	634	#endif
493	#if EV_SELECT_IS_WINSOCKET	635	#if EV_SELECT_IS_WINSOCKET
494	SOCKET handle;	636	SOCKET handle;
495	#endif	637	#endif
496	} ANFD;	638	} ANFD;
497		639
		640	/* stores the pending event set for a given watcher */
498	typedef struct	641	typedef struct
499	{	642	{
500	W w;	643	W w;
501	int events;	644	int events; /* the pending event set for the given watcher */
502	} ANPENDING;	645	} ANPENDING;
503		646
504	#if EV_USE_INOTIFY	647	#if EV_USE_INOTIFY
505	/* hash table entry per inotify-id */	648	/* hash table entry per inotify-id */
506	typedef struct	649	typedef struct
…		…
509	} ANFS;	652	} ANFS;
510	#endif	653	#endif
511		654
512	/* Heap Entry */	655	/* Heap Entry */
513	#if EV_HEAP_CACHE_AT	656	#if EV_HEAP_CACHE_AT
		657	/* a heap element */
514	typedef struct {	658	typedef struct {
515	ev_tstamp at;	659	ev_tstamp at;
516	WT w;	660	WT w;
517	} ANHE;	661	} ANHE;
518		662
519	#define ANHE_w(he) (he).w /* access watcher, read-write */	663	#define ANHE_w(he) (he).w /* access watcher, read-write */
520	#define ANHE_at(he) (he).at /* access cached at, read-only */	664	#define ANHE_at(he) (he).at /* access cached at, read-only */
521	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	665	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
522	#else	666	#else
		667	/* a heap element */
523	typedef WT ANHE;	668	typedef WT ANHE;
524		669
525	#define ANHE_w(he) (he)	670	#define ANHE_w(he) (he)
526	#define ANHE_at(he) (he)->at	671	#define ANHE_at(he) (he)->at
527	#define ANHE_at_cache(he)	672	#define ANHE_at_cache(he)
…		…
551		696
552	static int ev_default_loop_ptr;	697	static int ev_default_loop_ptr;
553		698
554	#endif	699	#endif
555		700
		701	#if EV_MINIMAL < 2
		702	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		703	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		704	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		705	#else
		706	# define EV_RELEASE_CB (void)0
		707	# define EV_ACQUIRE_CB (void)0
		708	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		709	#endif
		710
		711	#define EVUNLOOP_RECURSE 0x80
		712
556	/*****************************************************************************/	713	/*****************************************************************************/
557		714
		715	#ifndef EV_HAVE_EV_TIME
558	ev_tstamp	716	ev_tstamp
559	ev_time (void)	717	ev_time (void)
560	{	718	{
561	#if EV_USE_REALTIME	719	#if EV_USE_REALTIME
562	if (expect_true (have_realtime))	720	if (expect_true (have_realtime))
…		…
569		727
570	struct timeval tv;	728	struct timeval tv;
571	gettimeofday (&tv, 0);	729	gettimeofday (&tv, 0);
572	return tv.tv_sec + tv.tv_usec * 1e-6;	730	return tv.tv_sec + tv.tv_usec * 1e-6;
573	}	731	}
		732	#endif
574		733
575	ev_tstamp inline_size	734	inline_size ev_tstamp
576	get_clock (void)	735	get_clock (void)
577	{	736	{
578	#if EV_USE_MONOTONIC	737	#if EV_USE_MONOTONIC
579	if (expect_true (have_monotonic))	738	if (expect_true (have_monotonic))
580	{	739	{
…		…
614		773
615	tv.tv_sec = (time_t)delay;	774	tv.tv_sec = (time_t)delay;
616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	775	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617		776
618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	777	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
619	/* somehting nto guaranteed by newer posix versions, but guaranteed */	778	/* something not guaranteed by newer posix versions, but guaranteed */
620	/* by older ones */	779	/* by older ones */
621	select (0, 0, 0, 0, &tv);	780	select (0, 0, 0, 0, &tv);
622	#endif	781	#endif
623	}	782	}
624	}	783	}
625		784
626	/*****************************************************************************/	785	/*****************************************************************************/
627		786
628	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	787	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
629		788
630	int inline_size	789	/* find a suitable new size for the given array, */
		790	/* hopefully by rounding to a ncie-to-malloc size */
		791	inline_size int
631	array_nextsize (int elem, int cur, int cnt)	792	array_nextsize (int elem, int cur, int cnt)
632	{	793	{
633	int ncur = cur + 1;	794	int ncur = cur + 1;
634		795
635	do	796	do
…		…
680	#define array_free(stem, idx) \	841	#define array_free(stem, idx) \
681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	842	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682		843
683	/*****************************************************************************/	844	/*****************************************************************************/
684		845
		846	/* dummy callback for pending events */
		847	static void noinline
		848	pendingcb (EV_P_ ev_prepare *w, int revents)
		849	{
		850	}
		851
685	void noinline	852	void noinline
686	ev_feed_event (EV_P_ void *w, int revents)	853	ev_feed_event (EV_P_ void *w, int revents)
687	{	854	{
688	W w_ = (W)w;	855	W w_ = (W)w;
689	int pri = ABSPRI (w_);	856	int pri = ABSPRI (w_);
…		…
697	pendings [pri][w_->pending - 1].w = w_;	864	pendings [pri][w_->pending - 1].w = w_;
698	pendings [pri][w_->pending - 1].events = revents;	865	pendings [pri][w_->pending - 1].events = revents;
699	}	866	}
700	}	867	}
701		868
702	void inline_speed	869	inline_speed void
		870	feed_reverse (EV_P_ W w)
		871	{
		872	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		873	rfeeds [rfeedcnt++] = w;
		874	}
		875
		876	inline_size void
		877	feed_reverse_done (EV_P_ int revents)
		878	{
		879	do
		880	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		881	while (rfeedcnt);
		882	}
		883
		884	inline_speed void
703	queue_events (EV_P_ W *events, int eventcnt, int type)	885	queue_events (EV_P_ W *events, int eventcnt, int type)
704	{	886	{
705	int i;	887	int i;
706		888
707	for (i = 0; i < eventcnt; ++i)	889	for (i = 0; i < eventcnt; ++i)
708	ev_feed_event (EV_A_ events [i], type);	890	ev_feed_event (EV_A_ events [i], type);
709	}	891	}
710		892
711	/*****************************************************************************/	893	/*****************************************************************************/
712		894
713	void inline_speed	895	inline_speed void
714	fd_event (EV_P_ int fd, int revents)	896	fd_event_nocheck (EV_P_ int fd, int revents)
715	{	897	{
716	ANFD *anfd = anfds + fd;	898	ANFD *anfd = anfds + fd;
717	ev_io *w;	899	ev_io *w;
718		900
719	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	901	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
723	if (ev)	905	if (ev)
724	ev_feed_event (EV_A_ (W)w, ev);	906	ev_feed_event (EV_A_ (W)w, ev);
725	}	907	}
726	}	908	}
727		909
		910	/* do not submit kernel events for fds that have reify set */
		911	/* because that means they changed while we were polling for new events */
		912	inline_speed void
		913	fd_event (EV_P_ int fd, int revents)
		914	{
		915	ANFD *anfd = anfds + fd;
		916
		917	if (expect_true (!anfd->reify))
		918	fd_event_nocheck (EV_A_ fd, revents);
		919	}
		920
728	void	921	void
729	ev_feed_fd_event (EV_P_ int fd, int revents)	922	ev_feed_fd_event (EV_P_ int fd, int revents)
730	{	923	{
731	if (fd >= 0 && fd < anfdmax)	924	if (fd >= 0 && fd < anfdmax)
732	fd_event (EV_A_ fd, revents);	925	fd_event_nocheck (EV_A_ fd, revents);
733	}	926	}
734		927
735	void inline_size	928	/* make sure the external fd watch events are in-sync */
		929	/* with the kernel/libev internal state */
		930	inline_size void
736	fd_reify (EV_P)	931	fd_reify (EV_P)
737	{	932	{
738	int i;	933	int i;
739		934
740	for (i = 0; i < fdchangecnt; ++i)	935	for (i = 0; i < fdchangecnt; ++i)
…		…
750		945
751	#if EV_SELECT_IS_WINSOCKET	946	#if EV_SELECT_IS_WINSOCKET
752	if (events)	947	if (events)
753	{	948	{
754	unsigned long arg;	949	unsigned long arg;
755	#ifdef EV_FD_TO_WIN32_HANDLE
756	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	950	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
757	#else
758	anfd->handle = _get_osfhandle (fd);
759	#endif
760	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	951	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
761	}	952	}
762	#endif	953	#endif
763		954
764	{	955	{
…		…
774	}	965	}
775		966
776	fdchangecnt = 0;	967	fdchangecnt = 0;
777	}	968	}
778		969
779	void inline_size	970	/* something about the given fd changed */
		971	inline_size void
780	fd_change (EV_P_ int fd, int flags)	972	fd_change (EV_P_ int fd, int flags)
781	{	973	{
782	unsigned char reify = anfds [fd].reify;	974	unsigned char reify = anfds [fd].reify;
783	anfds [fd].reify |= flags;	975	anfds [fd].reify |= flags;
784		976
…		…
788	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	980	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
789	fdchanges [fdchangecnt - 1] = fd;	981	fdchanges [fdchangecnt - 1] = fd;
790	}	982	}
791	}	983	}
792		984
793	void inline_speed	985	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		986	inline_speed void
794	fd_kill (EV_P_ int fd)	987	fd_kill (EV_P_ int fd)
795	{	988	{
796	ev_io *w;	989	ev_io *w;
797		990
798	while ((w = (ev_io *)anfds [fd].head))	991	while ((w = (ev_io *)anfds [fd].head))
…		…
800	ev_io_stop (EV_A_ w);	993	ev_io_stop (EV_A_ w);
801	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	994	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
802	}	995	}
803	}	996	}
804		997
805	int inline_size	998	/* check whether the given fd is actually valid, for error recovery */
		999	inline_size int
806	fd_valid (int fd)	1000	fd_valid (int fd)
807	{	1001	{
808	#ifdef _WIN32	1002	#ifdef _WIN32
809	return _get_osfhandle (fd) != -1;	1003	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
810	#else	1004	#else
811	return fcntl (fd, F_GETFD) != -1;	1005	return fcntl (fd, F_GETFD) != -1;
812	#endif	1006	#endif
813	}	1007	}
814		1008
…		…
832		1026
833	for (fd = anfdmax; fd--; )	1027	for (fd = anfdmax; fd--; )
834	if (anfds [fd].events)	1028	if (anfds [fd].events)
835	{	1029	{
836	fd_kill (EV_A_ fd);	1030	fd_kill (EV_A_ fd);
837	return;	1031	break;
838	}	1032	}
839	}	1033	}
840		1034
841	/* usually called after fork if backend needs to re-arm all fds from scratch */	1035	/* usually called after fork if backend needs to re-arm all fds from scratch */
842	static void noinline	1036	static void noinline
…		…
847	for (fd = 0; fd < anfdmax; ++fd)	1041	for (fd = 0; fd < anfdmax; ++fd)
848	if (anfds [fd].events)	1042	if (anfds [fd].events)
849	{	1043	{
850	anfds [fd].events = 0;	1044	anfds [fd].events = 0;
851	anfds [fd].emask = 0;	1045	anfds [fd].emask = 0;
852	fd_change (EV_A_ fd, EV__IOFDSET | 1);	1046	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
853	}	1047	}
		1048	}
		1049
		1050	/* used to prepare libev internal fd's */
		1051	/* this is not fork-safe */
		1052	inline_speed void
		1053	fd_intern (int fd)
		1054	{
		1055	#ifdef _WIN32
		1056	unsigned long arg = 1;
		1057	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1058	#else
		1059	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1060	fcntl (fd, F_SETFL, O_NONBLOCK);
		1061	#endif
854	}	1062	}
855		1063
856	/*****************************************************************************/	1064	/*****************************************************************************/
857		1065
858	/*	1066	/*
…		…
873	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	1081	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
874	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	1082	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
875	#define UPHEAP_DONE(p,k) ((p) == (k))	1083	#define UPHEAP_DONE(p,k) ((p) == (k))
876		1084
877	/* away from the root */	1085	/* away from the root */
878	void inline_speed	1086	inline_speed void
879	downheap (ANHE *heap, int N, int k)	1087	downheap (ANHE *heap, int N, int k)
880	{	1088	{
881	ANHE he = heap [k];	1089	ANHE he = heap [k];
882	ANHE *E = heap + N + HEAP0;	1090	ANHE *E = heap + N + HEAP0;
883		1091
…		…
923	#define HEAP0 1	1131	#define HEAP0 1
924	#define HPARENT(k) ((k) >> 1)	1132	#define HPARENT(k) ((k) >> 1)
925	#define UPHEAP_DONE(p,k) (!(p))	1133	#define UPHEAP_DONE(p,k) (!(p))
926		1134
927	/* away from the root */	1135	/* away from the root */
928	void inline_speed	1136	inline_speed void
929	downheap (ANHE *heap, int N, int k)	1137	downheap (ANHE *heap, int N, int k)
930	{	1138	{
931	ANHE he = heap [k];	1139	ANHE he = heap [k];
932		1140
933	for (;;)	1141	for (;;)
934	{	1142	{
935	int c = k << 1;	1143	int c = k << 1;
936		1144
937	if (c > N + HEAP0 - 1)	1145	if (c >= N + HEAP0)
938	break;	1146	break;
939		1147
940	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1148	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
941	? 1 : 0;	1149	? 1 : 0;
942		1150
…		…
953	ev_active (ANHE_w (he)) = k;	1161	ev_active (ANHE_w (he)) = k;
954	}	1162	}
955	#endif	1163	#endif
956		1164
957	/* towards the root */	1165	/* towards the root */
958	void inline_speed	1166	inline_speed void
959	upheap (ANHE *heap, int k)	1167	upheap (ANHE *heap, int k)
960	{	1168	{
961	ANHE he = heap [k];	1169	ANHE he = heap [k];
962		1170
963	for (;;)	1171	for (;;)
…		…
974		1182
975	heap [k] = he;	1183	heap [k] = he;
976	ev_active (ANHE_w (he)) = k;	1184	ev_active (ANHE_w (he)) = k;
977	}	1185	}
978		1186
979	void inline_size	1187	/* move an element suitably so it is in a correct place */
		1188	inline_size void
980	adjustheap (ANHE *heap, int N, int k)	1189	adjustheap (ANHE *heap, int N, int k)
981	{	1190	{
982	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1191	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
983	upheap (heap, k);	1192	upheap (heap, k);
984	else	1193	else
985	downheap (heap, N, k);	1194	downheap (heap, N, k);
986	}	1195	}
987		1196
988	/* rebuild the heap: this function is used only once and executed rarely */	1197	/* rebuild the heap: this function is used only once and executed rarely */
989	void inline_size	1198	inline_size void
990	reheap (ANHE *heap, int N)	1199	reheap (ANHE *heap, int N)
991	{	1200	{
992	int i;	1201	int i;
993		1202
994	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1203	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
997	upheap (heap, i + HEAP0);	1206	upheap (heap, i + HEAP0);
998	}	1207	}
999		1208
1000	/*****************************************************************************/	1209	/*****************************************************************************/
1001		1210
		1211	/* associate signal watchers to a signal signal */
1002	typedef struct	1212	typedef struct
1003	{	1213	{
		1214	EV_ATOMIC_T pending;
		1215	#if EV_MULTIPLICITY
		1216	EV_P;
		1217	#endif
1004	WL head;	1218	WL head;
1005	EV_ATOMIC_T gotsig;
1006	} ANSIG;	1219	} ANSIG;
1007		1220
1008	static ANSIG *signals;	1221	static ANSIG signals [EV_NSIG - 1];
1009	static int signalmax;
1010
1011	static EV_ATOMIC_T gotsig;
1012		1222
1013	/*****************************************************************************/	1223	/*****************************************************************************/
1014		1224
1015	void inline_speed	1225	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1016	fd_intern (int fd)
1017	{
1018	#ifdef _WIN32
1019	unsigned long arg = 1;
1020	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1021	#else
1022	fcntl (fd, F_SETFD, FD_CLOEXEC);
1023	fcntl (fd, F_SETFL, O_NONBLOCK);
1024	#endif
1025	}
1026		1226
1027	static void noinline	1227	static void noinline
1028	evpipe_init (EV_P)	1228	evpipe_init (EV_P)
1029	{	1229	{
1030	if (!ev_is_active (&pipeev))	1230	if (!ev_is_active (&pipe_w))
1031	{	1231	{
1032	#if EV_USE_EVENTFD	1232	# if EV_USE_EVENTFD
		1233	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1234	if (evfd < 0 && errno == EINVAL)
1033	if ((evfd = eventfd (0, 0)) >= 0)	1235	evfd = eventfd (0, 0);
		1236
		1237	if (evfd >= 0)
1034	{	1238	{
1035	evpipe [0] = -1;	1239	evpipe [0] = -1;
1036	fd_intern (evfd);	1240	fd_intern (evfd); /* doing it twice doesn't hurt */
1037	ev_io_set (&pipeev, evfd, EV_READ);	1241	ev_io_set (&pipe_w, evfd, EV_READ);
1038	}	1242	}
1039	else	1243	else
1040	#endif	1244	# endif
1041	{	1245	{
1042	while (pipe (evpipe))	1246	while (pipe (evpipe))
1043	ev_syserr ("(libev) error creating signal/async pipe");	1247	ev_syserr ("(libev) error creating signal/async pipe");
1044		1248
1045	fd_intern (evpipe [0]);	1249	fd_intern (evpipe [0]);
1046	fd_intern (evpipe [1]);	1250	fd_intern (evpipe [1]);
1047	ev_io_set (&pipeev, evpipe [0], EV_READ);	1251	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1048	}	1252	}
1049		1253
1050	ev_io_start (EV_A_ &pipeev);	1254	ev_io_start (EV_A_ &pipe_w);
1051	ev_unref (EV_A); /* watcher should not keep loop alive */	1255	ev_unref (EV_A); /* watcher should not keep loop alive */
1052	}	1256	}
1053	}	1257	}
1054		1258
1055	void inline_size	1259	inline_size void
1056	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1260	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1057	{	1261	{
1058	if (!*flag)	1262	if (!*flag)
1059	{	1263	{
1060	int old_errno = errno; /* save errno because write might clobber it */	1264	int old_errno = errno; /* save errno because write might clobber it */
		1265	char dummy;
1061		1266
1062	*flag = 1;	1267	*flag = 1;
1063		1268
1064	#if EV_USE_EVENTFD	1269	#if EV_USE_EVENTFD
1065	if (evfd >= 0)	1270	if (evfd >= 0)
…		…
1067	uint64_t counter = 1;	1272	uint64_t counter = 1;
1068	write (evfd, &counter, sizeof (uint64_t));	1273	write (evfd, &counter, sizeof (uint64_t));
1069	}	1274	}
1070	else	1275	else
1071	#endif	1276	#endif
1072	write (evpipe [1], &old_errno, 1);	1277	write (evpipe [1], &dummy, 1);
1073		1278
1074	errno = old_errno;	1279	errno = old_errno;
1075	}	1280	}
1076	}	1281	}
1077		1282
		1283	/* called whenever the libev signal pipe */
		1284	/* got some events (signal, async) */
1078	static void	1285	static void
1079	pipecb (EV_P_ ev_io *iow, int revents)	1286	pipecb (EV_P_ ev_io *iow, int revents)
1080	{	1287	{
		1288	int i;
		1289
1081	#if EV_USE_EVENTFD	1290	#if EV_USE_EVENTFD
1082	if (evfd >= 0)	1291	if (evfd >= 0)
1083	{	1292	{
1084	uint64_t counter;	1293	uint64_t counter;
1085	read (evfd, &counter, sizeof (uint64_t));	1294	read (evfd, &counter, sizeof (uint64_t));
…		…
1089	{	1298	{
1090	char dummy;	1299	char dummy;
1091	read (evpipe [0], &dummy, 1);	1300	read (evpipe [0], &dummy, 1);
1092	}	1301	}
1093		1302
1094	if (gotsig && ev_is_default_loop (EV_A))	1303	if (sig_pending)
1095	{	1304	{
1096	int signum;	1305	sig_pending = 0;
1097	gotsig = 0;
1098		1306
1099	for (signum = signalmax; signum--; )	1307	for (i = EV_NSIG - 1; i--; )
1100	if (signals [signum].gotsig)	1308	if (expect_false (signals [i].pending))
1101	ev_feed_signal_event (EV_A_ signum + 1);	1309	ev_feed_signal_event (EV_A_ i + 1);
1102	}	1310	}
1103		1311
1104	#if EV_ASYNC_ENABLE	1312	#if EV_ASYNC_ENABLE
1105	if (gotasync)	1313	if (async_pending)
1106	{	1314	{
1107	int i;	1315	async_pending = 0;
1108	gotasync = 0;
1109		1316
1110	for (i = asynccnt; i--; )	1317	for (i = asynccnt; i--; )
1111	if (asyncs [i]->sent)	1318	if (asyncs [i]->sent)
1112	{	1319	{
1113	asyncs [i]->sent = 0;	1320	asyncs [i]->sent = 0;
…		…
1121		1328
1122	static void	1329	static void
1123	ev_sighandler (int signum)	1330	ev_sighandler (int signum)
1124	{	1331	{
1125	#if EV_MULTIPLICITY	1332	#if EV_MULTIPLICITY
1126	struct ev_loop *loop = &default_loop_struct;	1333	EV_P = signals [signum - 1].loop;
1127	#endif	1334	#endif
1128		1335
1129	#if _WIN32	1336	#ifdef _WIN32
1130	signal (signum, ev_sighandler);	1337	signal (signum, ev_sighandler);
1131	#endif	1338	#endif
1132		1339
1133	signals [signum - 1].gotsig = 1;	1340	signals [signum - 1].pending = 1;
1134	evpipe_write (EV_A_ &gotsig);	1341	evpipe_write (EV_A_ &sig_pending);
1135	}	1342	}
1136		1343
1137	void noinline	1344	void noinline
1138	ev_feed_signal_event (EV_P_ int signum)	1345	ev_feed_signal_event (EV_P_ int signum)
1139	{	1346	{
1140	WL w;	1347	WL w;
1141		1348
		1349	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1350	return;
		1351
		1352	--signum;
		1353
1142	#if EV_MULTIPLICITY	1354	#if EV_MULTIPLICITY
1143	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1355	/* it is permissible to try to feed a signal to the wrong loop */
1144	#endif	1356	/* or, likely more useful, feeding a signal nobody is waiting for */
1145		1357
1146	--signum;	1358	if (expect_false (signals [signum].loop != EV_A))
1147
1148	if (signum < 0 || signum >= signalmax)
1149	return;	1359	return;
		1360	#endif
1150		1361
1151	signals [signum].gotsig = 0;	1362	signals [signum].pending = 0;
1152		1363
1153	for (w = signals [signum].head; w; w = w->next)	1364	for (w = signals [signum].head; w; w = w->next)
1154	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1365	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1155	}	1366	}
1156		1367
		1368	#if EV_USE_SIGNALFD
		1369	static void
		1370	sigfdcb (EV_P_ ev_io *iow, int revents)
		1371	{
		1372	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1373
		1374	for (;;)
		1375	{
		1376	ssize_t res = read (sigfd, si, sizeof (si));
		1377
		1378	/* not ISO-C, as res might be -1, but works with SuS */
		1379	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1380	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1381
		1382	if (res < (ssize_t)sizeof (si))
		1383	break;
		1384	}
		1385	}
		1386	#endif
		1387
		1388	#endif
		1389
1157	/*****************************************************************************/	1390	/*****************************************************************************/
1158		1391
		1392	#if EV_CHILD_ENABLE
1159	static WL childs [EV_PID_HASHSIZE];	1393	static WL childs [EV_PID_HASHSIZE];
1160
1161	#ifndef _WIN32
1162		1394
1163	static ev_signal childev;	1395	static ev_signal childev;
1164		1396
1165	#ifndef WIFCONTINUED	1397	#ifndef WIFCONTINUED
1166	# define WIFCONTINUED(status) 0	1398	# define WIFCONTINUED(status) 0
1167	#endif	1399	#endif
1168		1400
1169	void inline_speed	1401	/* handle a single child status event */
		1402	inline_speed void
1170	child_reap (EV_P_ int chain, int pid, int status)	1403	child_reap (EV_P_ int chain, int pid, int status)
1171	{	1404	{
1172	ev_child *w;	1405	ev_child *w;
1173	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1406	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1174		1407
…		…
1187		1420
1188	#ifndef WCONTINUED	1421	#ifndef WCONTINUED
1189	# define WCONTINUED 0	1422	# define WCONTINUED 0
1190	#endif	1423	#endif
1191		1424
		1425	/* called on sigchld etc., calls waitpid */
1192	static void	1426	static void
1193	childcb (EV_P_ ev_signal *sw, int revents)	1427	childcb (EV_P_ ev_signal *sw, int revents)
1194	{	1428	{
1195	int pid, status;	1429	int pid, status;
1196		1430
…		…
1303	ev_backend (EV_P)	1537	ev_backend (EV_P)
1304	{	1538	{
1305	return backend;	1539	return backend;
1306	}	1540	}
1307		1541
		1542	#if EV_MINIMAL < 2
1308	unsigned int	1543	unsigned int
1309	ev_loop_count (EV_P)	1544	ev_loop_count (EV_P)
1310	{	1545	{
1311	return loop_count;	1546	return loop_count;
1312	}	1547	}
1313		1548
		1549	unsigned int
		1550	ev_loop_depth (EV_P)
		1551	{
		1552	return loop_depth;
		1553	}
		1554
1314	void	1555	void
1315	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1556	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1316	{	1557	{
1317	io_blocktime = interval;	1558	io_blocktime = interval;
1318	}	1559	}
…		…
1321	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1562	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1322	{	1563	{
1323	timeout_blocktime = interval;	1564	timeout_blocktime = interval;
1324	}	1565	}
1325		1566
		1567	void
		1568	ev_set_userdata (EV_P_ void *data)
		1569	{
		1570	userdata = data;
		1571	}
		1572
		1573	void *
		1574	ev_userdata (EV_P)
		1575	{
		1576	return userdata;
		1577	}
		1578
		1579	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1580	{
		1581	invoke_cb = invoke_pending_cb;
		1582	}
		1583
		1584	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1585	{
		1586	release_cb = release;
		1587	acquire_cb = acquire;
		1588	}
		1589	#endif
		1590
		1591	/* initialise a loop structure, must be zero-initialised */
1326	static void noinline	1592	static void noinline
1327	loop_init (EV_P_ unsigned int flags)	1593	loop_init (EV_P_ unsigned int flags)
1328	{	1594	{
1329	if (!backend)	1595	if (!backend)
1330	{	1596	{
…		…
1346	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1612	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1347	have_monotonic = 1;	1613	have_monotonic = 1;
1348	}	1614	}
1349	#endif	1615	#endif
1350		1616
		1617	/* pid check not overridable via env */
		1618	#ifndef _WIN32
		1619	if (flags & EVFLAG_FORKCHECK)
		1620	curpid = getpid ();
		1621	#endif
		1622
		1623	if (!(flags & EVFLAG_NOENV)
		1624	&& !enable_secure ()
		1625	&& getenv ("LIBEV_FLAGS"))
		1626	flags = atoi (getenv ("LIBEV_FLAGS"));
		1627
1351	ev_rt_now = ev_time ();	1628	ev_rt_now = ev_time ();
1352	mn_now = get_clock ();	1629	mn_now = get_clock ();
1353	now_floor = mn_now;	1630	now_floor = mn_now;
1354	rtmn_diff = ev_rt_now - mn_now;	1631	rtmn_diff = ev_rt_now - mn_now;
		1632	#if EV_MINIMAL < 2
		1633	invoke_cb = ev_invoke_pending;
		1634	#endif
1355		1635
1356	io_blocktime = 0.;	1636	io_blocktime = 0.;
1357	timeout_blocktime = 0.;	1637	timeout_blocktime = 0.;
1358	backend = 0;	1638	backend = 0;
1359	backend_fd = -1;	1639	backend_fd = -1;
1360	gotasync = 0;	1640	sig_pending = 0;
		1641	#if EV_ASYNC_ENABLE
		1642	async_pending = 0;
		1643	#endif
1361	#if EV_USE_INOTIFY	1644	#if EV_USE_INOTIFY
1362	fs_fd = -2;	1645	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1363	#endif	1646	#endif
1364		1647	#if EV_USE_SIGNALFD
1365	/* pid check not overridable via env */	1648	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1366	#ifndef _WIN32
1367	if (flags & EVFLAG_FORKCHECK)
1368	curpid = getpid ();
1369	#endif	1649	#endif
1370
1371	if (!(flags & EVFLAG_NOENV)
1372	&& !enable_secure ()
1373	&& getenv ("LIBEV_FLAGS"))
1374	flags = atoi (getenv ("LIBEV_FLAGS"));
1375		1650
1376	if (!(flags & 0x0000ffffU))	1651	if (!(flags & 0x0000ffffU))
1377	flags |= ev_recommended_backends ();	1652	flags |= ev_recommended_backends ();
1378		1653
1379	#if EV_USE_PORT	1654	#if EV_USE_PORT
…		…
1390	#endif	1665	#endif
1391	#if EV_USE_SELECT	1666	#if EV_USE_SELECT
1392	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1667	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1393	#endif	1668	#endif
1394		1669
		1670	ev_prepare_init (&pending_w, pendingcb);
		1671
		1672	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1395	ev_init (&pipeev, pipecb);	1673	ev_init (&pipe_w, pipecb);
1396	ev_set_priority (&pipeev, EV_MAXPRI);	1674	ev_set_priority (&pipe_w, EV_MAXPRI);
		1675	#endif
1397	}	1676	}
1398	}	1677	}
1399		1678
		1679	/* free up a loop structure */
1400	static void noinline	1680	static void noinline
1401	loop_destroy (EV_P)	1681	loop_destroy (EV_P)
1402	{	1682	{
1403	int i;	1683	int i;
1404		1684
1405	if (ev_is_active (&pipeev))	1685	if (ev_is_active (&pipe_w))
1406	{	1686	{
1407	ev_ref (EV_A); /* signal watcher */	1687	/*ev_ref (EV_A);*/
1408	ev_io_stop (EV_A_ &pipeev);	1688	/*ev_io_stop (EV_A_ &pipe_w);*/
1409		1689
1410	#if EV_USE_EVENTFD	1690	#if EV_USE_EVENTFD
1411	if (evfd >= 0)	1691	if (evfd >= 0)
1412	close (evfd);	1692	close (evfd);
1413	#endif	1693	#endif
1414		1694
1415	if (evpipe [0] >= 0)	1695	if (evpipe [0] >= 0)
1416	{	1696	{
1417	close (evpipe [0]);	1697	EV_WIN32_CLOSE_FD (evpipe [0]);
1418	close (evpipe [1]);	1698	EV_WIN32_CLOSE_FD (evpipe [1]);
1419	}	1699	}
1420	}	1700	}
		1701
		1702	#if EV_USE_SIGNALFD
		1703	if (ev_is_active (&sigfd_w))
		1704	close (sigfd);
		1705	#endif
1421		1706
1422	#if EV_USE_INOTIFY	1707	#if EV_USE_INOTIFY
1423	if (fs_fd >= 0)	1708	if (fs_fd >= 0)
1424	close (fs_fd);	1709	close (fs_fd);
1425	#endif	1710	#endif
…		…
1449	#if EV_IDLE_ENABLE	1734	#if EV_IDLE_ENABLE
1450	array_free (idle, [i]);	1735	array_free (idle, [i]);
1451	#endif	1736	#endif
1452	}	1737	}
1453		1738
1454	ev_free (anfds); anfdmax = 0;	1739	ev_free (anfds); anfds = 0; anfdmax = 0;
1455		1740
1456	/* have to use the microsoft-never-gets-it-right macro */	1741	/* have to use the microsoft-never-gets-it-right macro */
		1742	array_free (rfeed, EMPTY);
1457	array_free (fdchange, EMPTY);	1743	array_free (fdchange, EMPTY);
1458	array_free (timer, EMPTY);	1744	array_free (timer, EMPTY);
1459	#if EV_PERIODIC_ENABLE	1745	#if EV_PERIODIC_ENABLE
1460	array_free (periodic, EMPTY);	1746	array_free (periodic, EMPTY);
1461	#endif	1747	#endif
…		…
1470		1756
1471	backend = 0;	1757	backend = 0;
1472	}	1758	}
1473		1759
1474	#if EV_USE_INOTIFY	1760	#if EV_USE_INOTIFY
1475	void inline_size infy_fork (EV_P);	1761	inline_size void infy_fork (EV_P);
1476	#endif	1762	#endif
1477		1763
1478	void inline_size	1764	inline_size void
1479	loop_fork (EV_P)	1765	loop_fork (EV_P)
1480	{	1766	{
1481	#if EV_USE_PORT	1767	#if EV_USE_PORT
1482	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1768	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1483	#endif	1769	#endif
…		…
1489	#endif	1775	#endif
1490	#if EV_USE_INOTIFY	1776	#if EV_USE_INOTIFY
1491	infy_fork (EV_A);	1777	infy_fork (EV_A);
1492	#endif	1778	#endif
1493		1779
1494	if (ev_is_active (&pipeev))	1780	if (ev_is_active (&pipe_w))
1495	{	1781	{
1496	/* this "locks" the handlers against writing to the pipe */	1782	/* this "locks" the handlers against writing to the pipe */
1497	/* while we modify the fd vars */	1783	/* while we modify the fd vars */
1498	gotsig = 1;	1784	sig_pending = 1;
1499	#if EV_ASYNC_ENABLE	1785	#if EV_ASYNC_ENABLE
1500	gotasync = 1;	1786	async_pending = 1;
1501	#endif	1787	#endif
1502		1788
1503	ev_ref (EV_A);	1789	ev_ref (EV_A);
1504	ev_io_stop (EV_A_ &pipeev);	1790	ev_io_stop (EV_A_ &pipe_w);
1505		1791
1506	#if EV_USE_EVENTFD	1792	#if EV_USE_EVENTFD
1507	if (evfd >= 0)	1793	if (evfd >= 0)
1508	close (evfd);	1794	close (evfd);
1509	#endif	1795	#endif
1510		1796
1511	if (evpipe [0] >= 0)	1797	if (evpipe [0] >= 0)
1512	{	1798	{
1513	close (evpipe [0]);	1799	EV_WIN32_CLOSE_FD (evpipe [0]);
1514	close (evpipe [1]);	1800	EV_WIN32_CLOSE_FD (evpipe [1]);
1515	}	1801	}
1516		1802
		1803	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1517	evpipe_init (EV_A);	1804	evpipe_init (EV_A);
1518	/* now iterate over everything, in case we missed something */	1805	/* now iterate over everything, in case we missed something */
1519	pipecb (EV_A_ &pipeev, EV_READ);	1806	pipecb (EV_A_ &pipe_w, EV_READ);
		1807	#endif
1520	}	1808	}
1521		1809
1522	postfork = 0;	1810	postfork = 0;
1523	}	1811	}
1524		1812
1525	#if EV_MULTIPLICITY	1813	#if EV_MULTIPLICITY
1526		1814
1527	struct ev_loop *	1815	struct ev_loop *
1528	ev_loop_new (unsigned int flags)	1816	ev_loop_new (unsigned int flags)
1529	{	1817	{
1530	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1818	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1531		1819
1532	memset (loop, 0, sizeof (struct ev_loop));	1820	memset (EV_A, 0, sizeof (struct ev_loop));
1533
1534	loop_init (EV_A_ flags);	1821	loop_init (EV_A_ flags);
1535		1822
1536	if (ev_backend (EV_A))	1823	if (ev_backend (EV_A))
1537	return loop;	1824	return EV_A;
1538		1825
1539	return 0;	1826	return 0;
1540	}	1827	}
1541		1828
1542	void	1829	void
…		…
1549	void	1836	void
1550	ev_loop_fork (EV_P)	1837	ev_loop_fork (EV_P)
1551	{	1838	{
1552	postfork = 1; /* must be in line with ev_default_fork */	1839	postfork = 1; /* must be in line with ev_default_fork */
1553	}	1840	}
		1841	#endif /* multiplicity */
1554		1842
1555	#if EV_VERIFY	1843	#if EV_VERIFY
1556	static void noinline	1844	static void noinline
1557	verify_watcher (EV_P_ W w)	1845	verify_watcher (EV_P_ W w)
1558	{	1846	{
…		…
1586	verify_watcher (EV_A_ ws [cnt]);	1874	verify_watcher (EV_A_ ws [cnt]);
1587	}	1875	}
1588	}	1876	}
1589	#endif	1877	#endif
1590		1878
		1879	#if EV_MINIMAL < 2
1591	void	1880	void
1592	ev_loop_verify (EV_P)	1881	ev_loop_verify (EV_P)
1593	{	1882	{
1594	#if EV_VERIFY	1883	#if EV_VERIFY
1595	int i;	1884	int i;
…		…
1636	#if EV_ASYNC_ENABLE	1925	#if EV_ASYNC_ENABLE
1637	assert (asyncmax >= asynccnt);	1926	assert (asyncmax >= asynccnt);
1638	array_verify (EV_A_ (W *)asyncs, asynccnt);	1927	array_verify (EV_A_ (W *)asyncs, asynccnt);
1639	#endif	1928	#endif
1640		1929
		1930	#if EV_PREPARE_ENABLE
1641	assert (preparemax >= preparecnt);	1931	assert (preparemax >= preparecnt);
1642	array_verify (EV_A_ (W *)prepares, preparecnt);	1932	array_verify (EV_A_ (W *)prepares, preparecnt);
		1933	#endif
1643		1934
		1935	#if EV_CHECK_ENABLE
1644	assert (checkmax >= checkcnt);	1936	assert (checkmax >= checkcnt);
1645	array_verify (EV_A_ (W *)checks, checkcnt);	1937	array_verify (EV_A_ (W *)checks, checkcnt);
		1938	#endif
1646		1939
1647	# if 0	1940	# if 0
		1941	#if EV_CHILD_ENABLE
1648	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1942	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1649	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1943	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1650	# endif	1944	#endif
1651	#endif	1945	# endif
		1946	#endif
1652	}	1947	}
1653		1948	#endif
1654	#endif /* multiplicity */
1655		1949
1656	#if EV_MULTIPLICITY	1950	#if EV_MULTIPLICITY
1657	struct ev_loop *	1951	struct ev_loop *
1658	ev_default_loop_init (unsigned int flags)	1952	ev_default_loop_init (unsigned int flags)
1659	#else	1953	#else
…		…
1662	#endif	1956	#endif
1663	{	1957	{
1664	if (!ev_default_loop_ptr)	1958	if (!ev_default_loop_ptr)
1665	{	1959	{
1666	#if EV_MULTIPLICITY	1960	#if EV_MULTIPLICITY
1667	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1961	EV_P = ev_default_loop_ptr = &default_loop_struct;
1668	#else	1962	#else
1669	ev_default_loop_ptr = 1;	1963	ev_default_loop_ptr = 1;
1670	#endif	1964	#endif
1671		1965
1672	loop_init (EV_A_ flags);	1966	loop_init (EV_A_ flags);
1673		1967
1674	if (ev_backend (EV_A))	1968	if (ev_backend (EV_A))
1675	{	1969	{
1676	#ifndef _WIN32	1970	#if EV_CHILD_ENABLE
1677	ev_signal_init (&childev, childcb, SIGCHLD);	1971	ev_signal_init (&childev, childcb, SIGCHLD);
1678	ev_set_priority (&childev, EV_MAXPRI);	1972	ev_set_priority (&childev, EV_MAXPRI);
1679	ev_signal_start (EV_A_ &childev);	1973	ev_signal_start (EV_A_ &childev);
1680	ev_unref (EV_A); /* child watcher should not keep loop alive */	1974	ev_unref (EV_A); /* child watcher should not keep loop alive */
1681	#endif	1975	#endif
…		…
1689		1983
1690	void	1984	void
1691	ev_default_destroy (void)	1985	ev_default_destroy (void)
1692	{	1986	{
1693	#if EV_MULTIPLICITY	1987	#if EV_MULTIPLICITY
1694	struct ev_loop *loop = ev_default_loop_ptr;	1988	EV_P = ev_default_loop_ptr;
1695	#endif	1989	#endif
1696		1990
1697	ev_default_loop_ptr = 0;	1991	ev_default_loop_ptr = 0;
1698		1992
1699	#ifndef _WIN32	1993	#if EV_CHILD_ENABLE
1700	ev_ref (EV_A); /* child watcher */	1994	ev_ref (EV_A); /* child watcher */
1701	ev_signal_stop (EV_A_ &childev);	1995	ev_signal_stop (EV_A_ &childev);
1702	#endif	1996	#endif
1703		1997
1704	loop_destroy (EV_A);	1998	loop_destroy (EV_A);
…		…
1706		2000
1707	void	2001	void
1708	ev_default_fork (void)	2002	ev_default_fork (void)
1709	{	2003	{
1710	#if EV_MULTIPLICITY	2004	#if EV_MULTIPLICITY
1711	struct ev_loop *loop = ev_default_loop_ptr;	2005	EV_P = ev_default_loop_ptr;
1712	#endif	2006	#endif
1713		2007
1714	postfork = 1; /* must be in line with ev_loop_fork */	2008	postfork = 1; /* must be in line with ev_loop_fork */
1715	}	2009	}
1716		2010
…		…
1720	ev_invoke (EV_P_ void *w, int revents)	2014	ev_invoke (EV_P_ void *w, int revents)
1721	{	2015	{
1722	EV_CB_INVOKE ((W)w, revents);	2016	EV_CB_INVOKE ((W)w, revents);
1723	}	2017	}
1724		2018
1725	void inline_speed	2019	unsigned int
1726	call_pending (EV_P)	2020	ev_pending_count (EV_P)
		2021	{
		2022	int pri;
		2023	unsigned int count = 0;
		2024
		2025	for (pri = NUMPRI; pri--; )
		2026	count += pendingcnt [pri];
		2027
		2028	return count;
		2029	}
		2030
		2031	void noinline
		2032	ev_invoke_pending (EV_P)
1727	{	2033	{
1728	int pri;	2034	int pri;
1729		2035
1730	for (pri = NUMPRI; pri--; )	2036	for (pri = NUMPRI; pri--; )
1731	while (pendingcnt [pri])	2037	while (pendingcnt [pri])
1732	{	2038	{
1733	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2039	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1734		2040
1735	if (expect_true (p->w))
1736	{
1737	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	2041	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		2042	/* ^ this is no longer true, as pending_w could be here */
1738		2043
1739	p->w->pending = 0;	2044	p->w->pending = 0;
1740	EV_CB_INVOKE (p->w, p->events);	2045	EV_CB_INVOKE (p->w, p->events);
1741	EV_FREQUENT_CHECK;	2046	EV_FREQUENT_CHECK;
1742	}
1743	}	2047	}
1744	}	2048	}
1745		2049
1746	#if EV_IDLE_ENABLE	2050	#if EV_IDLE_ENABLE
1747	void inline_size	2051	/* make idle watchers pending. this handles the "call-idle */
		2052	/* only when higher priorities are idle" logic */
		2053	inline_size void
1748	idle_reify (EV_P)	2054	idle_reify (EV_P)
1749	{	2055	{
1750	if (expect_false (idleall))	2056	if (expect_false (idleall))
1751	{	2057	{
1752	int pri;	2058	int pri;
…		…
1764	}	2070	}
1765	}	2071	}
1766	}	2072	}
1767	#endif	2073	#endif
1768		2074
1769	void inline_size	2075	/* make timers pending */
		2076	inline_size void
1770	timers_reify (EV_P)	2077	timers_reify (EV_P)
1771	{	2078	{
1772	EV_FREQUENT_CHECK;	2079	EV_FREQUENT_CHECK;
1773		2080
1774	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	2081	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1775	{	2082	{
1776	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	2083	do
1777
1778	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1779
1780	/* first reschedule or stop timer */
1781	if (w->repeat)
1782	{	2084	{
		2085	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2086
		2087	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2088
		2089	/* first reschedule or stop timer */
		2090	if (w->repeat)
		2091	{
1783	ev_at (w) += w->repeat;	2092	ev_at (w) += w->repeat;
1784	if (ev_at (w) < mn_now)	2093	if (ev_at (w) < mn_now)
1785	ev_at (w) = mn_now;	2094	ev_at (w) = mn_now;
1786		2095
1787	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));	2096	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1788		2097
1789	ANHE_at_cache (timers [HEAP0]);	2098	ANHE_at_cache (timers [HEAP0]);
1790	downheap (timers, timercnt, HEAP0);	2099	downheap (timers, timercnt, HEAP0);
		2100	}
		2101	else
		2102	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2103
		2104	EV_FREQUENT_CHECK;
		2105	feed_reverse (EV_A_ (W)w);
1791	}	2106	}
1792	else	2107	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1793	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1794		2108
1795	EV_FREQUENT_CHECK;
1796	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	2109	feed_reverse_done (EV_A_ EV_TIMEOUT);
1797	}	2110	}
1798	}	2111	}
1799		2112
1800	#if EV_PERIODIC_ENABLE	2113	#if EV_PERIODIC_ENABLE
1801	void inline_size	2114	/* make periodics pending */
		2115	inline_size void
1802	periodics_reify (EV_P)	2116	periodics_reify (EV_P)
1803	{	2117	{
1804	EV_FREQUENT_CHECK;	2118	EV_FREQUENT_CHECK;
1805		2119
1806	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2120	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1807	{	2121	{
1808	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2122	int feed_count = 0;
1809		2123
1810	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2124	do
1811
1812	/* first reschedule or stop timer */
1813	if (w->reschedule_cb)
1814	{	2125	{
		2126	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2127
		2128	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2129
		2130	/* first reschedule or stop timer */
		2131	if (w->reschedule_cb)
		2132	{
1815	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2133	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1816		2134
1817	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	2135	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1818		2136
1819	ANHE_at_cache (periodics [HEAP0]);	2137	ANHE_at_cache (periodics [HEAP0]);
1820	downheap (periodics, periodiccnt, HEAP0);	2138	downheap (periodics, periodiccnt, HEAP0);
		2139	}
		2140	else if (w->interval)
		2141	{
		2142	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2143	/* if next trigger time is not sufficiently in the future, put it there */
		2144	/* this might happen because of floating point inexactness */
		2145	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2146	{
		2147	ev_at (w) += w->interval;
		2148
		2149	/* if interval is unreasonably low we might still have a time in the past */
		2150	/* so correct this. this will make the periodic very inexact, but the user */
		2151	/* has effectively asked to get triggered more often than possible */
		2152	if (ev_at (w) < ev_rt_now)
		2153	ev_at (w) = ev_rt_now;
		2154	}
		2155
		2156	ANHE_at_cache (periodics [HEAP0]);
		2157	downheap (periodics, periodiccnt, HEAP0);
		2158	}
		2159	else
		2160	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2161
		2162	EV_FREQUENT_CHECK;
		2163	feed_reverse (EV_A_ (W)w);
1821	}	2164	}
1822	else if (w->interval)	2165	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1823	{
1824	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1825	/* if next trigger time is not sufficiently in the future, put it there */
1826	/* this might happen because of floating point inexactness */
1827	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1828	{
1829	ev_at (w) += w->interval;
1830		2166
1831	/* if interval is unreasonably low we might still have a time in the past */
1832	/* so correct this. this will make the periodic very inexact, but the user */
1833	/* has effectively asked to get triggered more often than possible */
1834	if (ev_at (w) < ev_rt_now)
1835	ev_at (w) = ev_rt_now;
1836	}
1837
1838	ANHE_at_cache (periodics [HEAP0]);
1839	downheap (periodics, periodiccnt, HEAP0);
1840	}
1841	else
1842	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1843
1844	EV_FREQUENT_CHECK;
1845	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	2167	feed_reverse_done (EV_A_ EV_PERIODIC);
1846	}	2168	}
1847	}	2169	}
1848		2170
		2171	/* simply recalculate all periodics */
		2172	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1849	static void noinline	2173	static void noinline
1850	periodics_reschedule (EV_P)	2174	periodics_reschedule (EV_P)
1851	{	2175	{
1852	int i;	2176	int i;
1853		2177
…		…
1866		2190
1867	reheap (periodics, periodiccnt);	2191	reheap (periodics, periodiccnt);
1868	}	2192	}
1869	#endif	2193	#endif
1870		2194
1871	void inline_speed	2195	/* adjust all timers by a given offset */
		2196	static void noinline
		2197	timers_reschedule (EV_P_ ev_tstamp adjust)
		2198	{
		2199	int i;
		2200
		2201	for (i = 0; i < timercnt; ++i)
		2202	{
		2203	ANHE *he = timers + i + HEAP0;
		2204	ANHE_w (*he)->at += adjust;
		2205	ANHE_at_cache (*he);
		2206	}
		2207	}
		2208
		2209	/* fetch new monotonic and realtime times from the kernel */
		2210	/* also detect if there was a timejump, and act accordingly */
		2211	inline_speed void
1872	time_update (EV_P_ ev_tstamp max_block)	2212	time_update (EV_P_ ev_tstamp max_block)
1873	{	2213	{
1874	int i;
1875
1876	#if EV_USE_MONOTONIC	2214	#if EV_USE_MONOTONIC
1877	if (expect_true (have_monotonic))	2215	if (expect_true (have_monotonic))
1878	{	2216	{
		2217	int i;
1879	ev_tstamp odiff = rtmn_diff;	2218	ev_tstamp odiff = rtmn_diff;
1880		2219
1881	mn_now = get_clock ();	2220	mn_now = get_clock ();
1882		2221
1883	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2222	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1909	ev_rt_now = ev_time ();	2248	ev_rt_now = ev_time ();
1910	mn_now = get_clock ();	2249	mn_now = get_clock ();
1911	now_floor = mn_now;	2250	now_floor = mn_now;
1912	}	2251	}
1913		2252
		2253	/* no timer adjustment, as the monotonic clock doesn't jump */
		2254	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1914	# if EV_PERIODIC_ENABLE	2255	# if EV_PERIODIC_ENABLE
1915	periodics_reschedule (EV_A);	2256	periodics_reschedule (EV_A);
1916	# endif	2257	# endif
1917	/* no timer adjustment, as the monotonic clock doesn't jump */
1918	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1919	}	2258	}
1920	else	2259	else
1921	#endif	2260	#endif
1922	{	2261	{
1923	ev_rt_now = ev_time ();	2262	ev_rt_now = ev_time ();
1924		2263
1925	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2264	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1926	{	2265	{
		2266	/* adjust timers. this is easy, as the offset is the same for all of them */
		2267	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1927	#if EV_PERIODIC_ENABLE	2268	#if EV_PERIODIC_ENABLE
1928	periodics_reschedule (EV_A);	2269	periodics_reschedule (EV_A);
1929	#endif	2270	#endif
1930	/* adjust timers. this is easy, as the offset is the same for all of them */
1931	for (i = 0; i < timercnt; ++i)
1932	{
1933	ANHE *he = timers + i + HEAP0;
1934	ANHE_w (*he)->at += ev_rt_now - mn_now;
1935	ANHE_at_cache (*he);
1936	}
1937	}	2271	}
1938		2272
1939	mn_now = ev_rt_now;	2273	mn_now = ev_rt_now;
1940	}	2274	}
1941	}	2275	}
1942		2276
1943	void	2277	void
1944	ev_ref (EV_P)
1945	{
1946	++activecnt;
1947	}
1948
1949	void
1950	ev_unref (EV_P)
1951	{
1952	--activecnt;
1953	}
1954
1955	void
1956	ev_now_update (EV_P)
1957	{
1958	time_update (EV_A_ 1e100);
1959	}
1960
1961	static int loop_done;
1962
1963	void
1964	ev_loop (EV_P_ int flags)	2278	ev_loop (EV_P_ int flags)
1965	{	2279	{
		2280	#if EV_MINIMAL < 2
		2281	++loop_depth;
		2282	#endif
		2283
		2284	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2285
1966	loop_done = EVUNLOOP_CANCEL;	2286	loop_done = EVUNLOOP_CANCEL;
1967		2287
1968	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2288	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1969		2289
1970	do	2290	do
1971	{	2291	{
1972	#if EV_VERIFY >= 2	2292	#if EV_VERIFY >= 2
1973	ev_loop_verify (EV_A);	2293	ev_loop_verify (EV_A);
…		…
1986	/* we might have forked, so queue fork handlers */	2306	/* we might have forked, so queue fork handlers */
1987	if (expect_false (postfork))	2307	if (expect_false (postfork))
1988	if (forkcnt)	2308	if (forkcnt)
1989	{	2309	{
1990	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2310	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1991	call_pending (EV_A);	2311	EV_INVOKE_PENDING;
1992	}	2312	}
1993	#endif	2313	#endif
1994		2314
		2315	#if EV_PREPARE_ENABLE
1995	/* queue prepare watchers (and execute them) */	2316	/* queue prepare watchers (and execute them) */
1996	if (expect_false (preparecnt))	2317	if (expect_false (preparecnt))
1997	{	2318	{
1998	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2319	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1999	call_pending (EV_A);	2320	EV_INVOKE_PENDING;
2000	}	2321	}
		2322	#endif
		2323
		2324	if (expect_false (loop_done))
		2325	break;
2001		2326
2002	/* we might have forked, so reify kernel state if necessary */	2327	/* we might have forked, so reify kernel state if necessary */
2003	if (expect_false (postfork))	2328	if (expect_false (postfork))
2004	loop_fork (EV_A);	2329	loop_fork (EV_A);
2005		2330
…		…
2011	ev_tstamp waittime = 0.;	2336	ev_tstamp waittime = 0.;
2012	ev_tstamp sleeptime = 0.;	2337	ev_tstamp sleeptime = 0.;
2013		2338
2014	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2339	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
2015	{	2340	{
		2341	/* remember old timestamp for io_blocktime calculation */
		2342	ev_tstamp prev_mn_now = mn_now;
		2343
2016	/* update time to cancel out callback processing overhead */	2344	/* update time to cancel out callback processing overhead */
2017	time_update (EV_A_ 1e100);	2345	time_update (EV_A_ 1e100);
2018		2346
2019	waittime = MAX_BLOCKTIME;	2347	waittime = MAX_BLOCKTIME;
2020		2348
…		…
2030	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2358	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2031	if (waittime > to) waittime = to;	2359	if (waittime > to) waittime = to;
2032	}	2360	}
2033	#endif	2361	#endif
2034		2362
		2363	/* don't let timeouts decrease the waittime below timeout_blocktime */
2035	if (expect_false (waittime < timeout_blocktime))	2364	if (expect_false (waittime < timeout_blocktime))
2036	waittime = timeout_blocktime;	2365	waittime = timeout_blocktime;
2037		2366
2038	sleeptime = waittime - backend_fudge;	2367	/* extra check because io_blocktime is commonly 0 */
2039
2040	if (expect_true (sleeptime > io_blocktime))	2368	if (expect_false (io_blocktime))
2041	sleeptime = io_blocktime;
2042
2043	if (sleeptime)
2044	{	2369	{
		2370	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2371
		2372	if (sleeptime > waittime - backend_fudge)
		2373	sleeptime = waittime - backend_fudge;
		2374
		2375	if (expect_true (sleeptime > 0.))
		2376	{
2045	ev_sleep (sleeptime);	2377	ev_sleep (sleeptime);
2046	waittime -= sleeptime;	2378	waittime -= sleeptime;
		2379	}
2047	}	2380	}
2048	}	2381	}
2049		2382
		2383	#if EV_MINIMAL < 2
2050	++loop_count;	2384	++loop_count;
		2385	#endif
		2386	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2051	backend_poll (EV_A_ waittime);	2387	backend_poll (EV_A_ waittime);
		2388	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2052		2389
2053	/* update ev_rt_now, do magic */	2390	/* update ev_rt_now, do magic */
2054	time_update (EV_A_ waittime + sleeptime);	2391	time_update (EV_A_ waittime + sleeptime);
2055	}	2392	}
2056		2393
…		…
2063	#if EV_IDLE_ENABLE	2400	#if EV_IDLE_ENABLE
2064	/* queue idle watchers unless other events are pending */	2401	/* queue idle watchers unless other events are pending */
2065	idle_reify (EV_A);	2402	idle_reify (EV_A);
2066	#endif	2403	#endif
2067		2404
		2405	#if EV_CHECK_ENABLE
2068	/* queue check watchers, to be executed first */	2406	/* queue check watchers, to be executed first */
2069	if (expect_false (checkcnt))	2407	if (expect_false (checkcnt))
2070	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2408	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2409	#endif
2071		2410
2072	call_pending (EV_A);	2411	EV_INVOKE_PENDING;
2073	}	2412	}
2074	while (expect_true (	2413	while (expect_true (
2075	activecnt	2414	activecnt
2076	&& !loop_done	2415	&& !loop_done
2077	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2416	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2078	));	2417	));
2079		2418
2080	if (loop_done == EVUNLOOP_ONE)	2419	if (loop_done == EVUNLOOP_ONE)
2081	loop_done = EVUNLOOP_CANCEL;	2420	loop_done = EVUNLOOP_CANCEL;
		2421
		2422	#if EV_MINIMAL < 2
		2423	--loop_depth;
		2424	#endif
2082	}	2425	}
2083		2426
2084	void	2427	void
2085	ev_unloop (EV_P_ int how)	2428	ev_unloop (EV_P_ int how)
2086	{	2429	{
2087	loop_done = how;	2430	loop_done = how;
2088	}	2431	}
2089		2432
		2433	void
		2434	ev_ref (EV_P)
		2435	{
		2436	++activecnt;
		2437	}
		2438
		2439	void
		2440	ev_unref (EV_P)
		2441	{
		2442	--activecnt;
		2443	}
		2444
		2445	void
		2446	ev_now_update (EV_P)
		2447	{
		2448	time_update (EV_A_ 1e100);
		2449	}
		2450
		2451	void
		2452	ev_suspend (EV_P)
		2453	{
		2454	ev_now_update (EV_A);
		2455	}
		2456
		2457	void
		2458	ev_resume (EV_P)
		2459	{
		2460	ev_tstamp mn_prev = mn_now;
		2461
		2462	ev_now_update (EV_A);
		2463	timers_reschedule (EV_A_ mn_now - mn_prev);
		2464	#if EV_PERIODIC_ENABLE
		2465	/* TODO: really do this? */
		2466	periodics_reschedule (EV_A);
		2467	#endif
		2468	}
		2469
2090	/*****************************************************************************/	2470	/*****************************************************************************/
		2471	/* singly-linked list management, used when the expected list length is short */
2091		2472
2092	void inline_size	2473	inline_size void
2093	wlist_add (WL *head, WL elem)	2474	wlist_add (WL *head, WL elem)
2094	{	2475	{
2095	elem->next = *head;	2476	elem->next = *head;
2096	*head = elem;	2477	*head = elem;
2097	}	2478	}
2098		2479
2099	void inline_size	2480	inline_size void
2100	wlist_del (WL *head, WL elem)	2481	wlist_del (WL *head, WL elem)
2101	{	2482	{
2102	while (*head)	2483	while (*head)
2103	{	2484	{
2104	if (*head == elem)	2485	if (expect_true (*head == elem))
2105	{	2486	{
2106	*head = elem->next;	2487	*head = elem->next;
2107	return;	2488	break;
2108	}	2489	}
2109		2490
2110	head = &(*head)->next;	2491	head = &(*head)->next;
2111	}	2492	}
2112	}	2493	}
2113		2494
2114	void inline_speed	2495	/* internal, faster, version of ev_clear_pending */
		2496	inline_speed void
2115	clear_pending (EV_P_ W w)	2497	clear_pending (EV_P_ W w)
2116	{	2498	{
2117	if (w->pending)	2499	if (w->pending)
2118	{	2500	{
2119	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2501	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2120	w->pending = 0;	2502	w->pending = 0;
2121	}	2503	}
2122	}	2504	}
2123		2505
2124	int	2506	int
…		…
2128	int pending = w_->pending;	2510	int pending = w_->pending;
2129		2511
2130	if (expect_true (pending))	2512	if (expect_true (pending))
2131	{	2513	{
2132	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2514	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2515	p->w = (W)&pending_w;
2133	w_->pending = 0;	2516	w_->pending = 0;
2134	p->w = 0;
2135	return p->events;	2517	return p->events;
2136	}	2518	}
2137	else	2519	else
2138	return 0;	2520	return 0;
2139	}	2521	}
2140		2522
2141	void inline_size	2523	inline_size void
2142	pri_adjust (EV_P_ W w)	2524	pri_adjust (EV_P_ W w)
2143	{	2525	{
2144	int pri = w->priority;	2526	int pri = ev_priority (w);
2145	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2527	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2146	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2528	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2147	w->priority = pri;	2529	ev_set_priority (w, pri);
2148	}	2530	}
2149		2531
2150	void inline_speed	2532	inline_speed void
2151	ev_start (EV_P_ W w, int active)	2533	ev_start (EV_P_ W w, int active)
2152	{	2534	{
2153	pri_adjust (EV_A_ w);	2535	pri_adjust (EV_A_ w);
2154	w->active = active;	2536	w->active = active;
2155	ev_ref (EV_A);	2537	ev_ref (EV_A);
2156	}	2538	}
2157		2539
2158	void inline_size	2540	inline_size void
2159	ev_stop (EV_P_ W w)	2541	ev_stop (EV_P_ W w)
2160	{	2542	{
2161	ev_unref (EV_A);	2543	ev_unref (EV_A);
2162	w->active = 0;	2544	w->active = 0;
2163	}	2545	}
…		…
2171		2553
2172	if (expect_false (ev_is_active (w)))	2554	if (expect_false (ev_is_active (w)))
2173	return;	2555	return;
2174		2556
2175	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2557	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2176	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2558	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2177		2559
2178	EV_FREQUENT_CHECK;	2560	EV_FREQUENT_CHECK;
2179		2561
2180	ev_start (EV_A_ (W)w, 1);	2562	ev_start (EV_A_ (W)w, 1);
2181	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2563	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2182	wlist_add (&anfds[fd].head, (WL)w);	2564	wlist_add (&anfds[fd].head, (WL)w);
2183		2565
2184	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);	2566	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2185	w->events &= ~EV__IOFDSET;	2567	w->events &= ~EV__IOFDSET;
2186		2568
2187	EV_FREQUENT_CHECK;	2569	EV_FREQUENT_CHECK;
2188	}	2570	}
2189		2571
…		…
2251	timers [active] = timers [timercnt + HEAP0];	2633	timers [active] = timers [timercnt + HEAP0];
2252	adjustheap (timers, timercnt, active);	2634	adjustheap (timers, timercnt, active);
2253	}	2635	}
2254	}	2636	}
2255		2637
2256	EV_FREQUENT_CHECK;
2257
2258	ev_at (w) -= mn_now;	2638	ev_at (w) -= mn_now;
2259		2639
2260	ev_stop (EV_A_ (W)w);	2640	ev_stop (EV_A_ (W)w);
		2641
		2642	EV_FREQUENT_CHECK;
2261	}	2643	}
2262		2644
2263	void noinline	2645	void noinline
2264	ev_timer_again (EV_P_ ev_timer *w)	2646	ev_timer_again (EV_P_ ev_timer *w)
2265	{	2647	{
…		…
2283	}	2665	}
2284		2666
2285	EV_FREQUENT_CHECK;	2667	EV_FREQUENT_CHECK;
2286	}	2668	}
2287		2669
		2670	ev_tstamp
		2671	ev_timer_remaining (EV_P_ ev_timer *w)
		2672	{
		2673	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2674	}
		2675
2288	#if EV_PERIODIC_ENABLE	2676	#if EV_PERIODIC_ENABLE
2289	void noinline	2677	void noinline
2290	ev_periodic_start (EV_P_ ev_periodic *w)	2678	ev_periodic_start (EV_P_ ev_periodic *w)
2291	{	2679	{
2292	if (expect_false (ev_is_active (w)))	2680	if (expect_false (ev_is_active (w)))
…		…
2338	periodics [active] = periodics [periodiccnt + HEAP0];	2726	periodics [active] = periodics [periodiccnt + HEAP0];
2339	adjustheap (periodics, periodiccnt, active);	2727	adjustheap (periodics, periodiccnt, active);
2340	}	2728	}
2341	}	2729	}
2342		2730
2343	EV_FREQUENT_CHECK;
2344
2345	ev_stop (EV_A_ (W)w);	2731	ev_stop (EV_A_ (W)w);
		2732
		2733	EV_FREQUENT_CHECK;
2346	}	2734	}
2347		2735
2348	void noinline	2736	void noinline
2349	ev_periodic_again (EV_P_ ev_periodic *w)	2737	ev_periodic_again (EV_P_ ev_periodic *w)
2350	{	2738	{
…		…
2356		2744
2357	#ifndef SA_RESTART	2745	#ifndef SA_RESTART
2358	# define SA_RESTART 0	2746	# define SA_RESTART 0
2359	#endif	2747	#endif
2360		2748
		2749	#if EV_SIGNAL_ENABLE
		2750
2361	void noinline	2751	void noinline
2362	ev_signal_start (EV_P_ ev_signal *w)	2752	ev_signal_start (EV_P_ ev_signal *w)
2363	{	2753	{
2364	#if EV_MULTIPLICITY
2365	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2366	#endif
2367	if (expect_false (ev_is_active (w)))	2754	if (expect_false (ev_is_active (w)))
2368	return;	2755	return;
2369		2756
2370	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2757	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2371		2758
2372	evpipe_init (EV_A);	2759	#if EV_MULTIPLICITY
		2760	assert (("libev: a signal must not be attached to two different loops",
		2761	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2373		2762
2374	EV_FREQUENT_CHECK;	2763	signals [w->signum - 1].loop = EV_A;
		2764	#endif
2375		2765
		2766	EV_FREQUENT_CHECK;
		2767
		2768	#if EV_USE_SIGNALFD
		2769	if (sigfd == -2)
2376	{	2770	{
2377	#ifndef _WIN32	2771	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2378	sigset_t full, prev;	2772	if (sigfd < 0 && errno == EINVAL)
2379	sigfillset (&full);	2773	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2380	sigprocmask (SIG_SETMASK, &full, &prev);
2381	#endif
2382		2774
2383	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2775	if (sigfd >= 0)
		2776	{
		2777	fd_intern (sigfd); /* doing it twice will not hurt */
2384		2778
2385	#ifndef _WIN32	2779	sigemptyset (&sigfd_set);
2386	sigprocmask (SIG_SETMASK, &prev, 0);	2780
2387	#endif	2781	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2782	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2783	ev_io_start (EV_A_ &sigfd_w);
		2784	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2785	}
2388	}	2786	}
		2787
		2788	if (sigfd >= 0)
		2789	{
		2790	/* TODO: check .head */
		2791	sigaddset (&sigfd_set, w->signum);
		2792	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2793
		2794	signalfd (sigfd, &sigfd_set, 0);
		2795	}
		2796	#endif
2389		2797
2390	ev_start (EV_A_ (W)w, 1);	2798	ev_start (EV_A_ (W)w, 1);
2391	wlist_add (&signals [w->signum - 1].head, (WL)w);	2799	wlist_add (&signals [w->signum - 1].head, (WL)w);
2392		2800
2393	if (!((WL)w)->next)	2801	if (!((WL)w)->next)
		2802	# if EV_USE_SIGNALFD
		2803	if (sigfd < 0) /*TODO*/
		2804	# endif
2394	{	2805	{
2395	#if _WIN32	2806	# ifdef _WIN32
		2807	evpipe_init (EV_A);
		2808
2396	signal (w->signum, ev_sighandler);	2809	signal (w->signum, ev_sighandler);
2397	#else	2810	# else
2398	struct sigaction sa;	2811	struct sigaction sa;
		2812
		2813	evpipe_init (EV_A);
		2814
2399	sa.sa_handler = ev_sighandler;	2815	sa.sa_handler = ev_sighandler;
2400	sigfillset (&sa.sa_mask);	2816	sigfillset (&sa.sa_mask);
2401	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2817	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2402	sigaction (w->signum, &sa, 0);	2818	sigaction (w->signum, &sa, 0);
		2819
		2820	sigemptyset (&sa.sa_mask);
		2821	sigaddset (&sa.sa_mask, w->signum);
		2822	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2403	#endif	2823	#endif
2404	}	2824	}
2405		2825
2406	EV_FREQUENT_CHECK;	2826	EV_FREQUENT_CHECK;
2407	}	2827	}
2408		2828
2409	void noinline	2829	void noinline
…		…
2417		2837
2418	wlist_del (&signals [w->signum - 1].head, (WL)w);	2838	wlist_del (&signals [w->signum - 1].head, (WL)w);
2419	ev_stop (EV_A_ (W)w);	2839	ev_stop (EV_A_ (W)w);
2420		2840
2421	if (!signals [w->signum - 1].head)	2841	if (!signals [w->signum - 1].head)
		2842	{
		2843	#if EV_MULTIPLICITY
		2844	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2845	#endif
		2846	#if EV_USE_SIGNALFD
		2847	if (sigfd >= 0)
		2848	{
		2849	sigset_t ss;
		2850
		2851	sigemptyset (&ss);
		2852	sigaddset (&ss, w->signum);
		2853	sigdelset (&sigfd_set, w->signum);
		2854
		2855	signalfd (sigfd, &sigfd_set, 0);
		2856	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2857	}
		2858	else
		2859	#endif
2422	signal (w->signum, SIG_DFL);	2860	signal (w->signum, SIG_DFL);
		2861	}
2423		2862
2424	EV_FREQUENT_CHECK;	2863	EV_FREQUENT_CHECK;
2425	}	2864	}
		2865
		2866	#endif
		2867
		2868	#if EV_CHILD_ENABLE
2426		2869
2427	void	2870	void
2428	ev_child_start (EV_P_ ev_child *w)	2871	ev_child_start (EV_P_ ev_child *w)
2429	{	2872	{
2430	#if EV_MULTIPLICITY	2873	#if EV_MULTIPLICITY
…		…
2454	ev_stop (EV_A_ (W)w);	2897	ev_stop (EV_A_ (W)w);
2455		2898
2456	EV_FREQUENT_CHECK;	2899	EV_FREQUENT_CHECK;
2457	}	2900	}
2458		2901
		2902	#endif
		2903
2459	#if EV_STAT_ENABLE	2904	#if EV_STAT_ENABLE
2460		2905
2461	# ifdef _WIN32	2906	# ifdef _WIN32
2462	# undef lstat	2907	# undef lstat
2463	# define lstat(a,b) _stati64 (a,b)	2908	# define lstat(a,b) _stati64 (a,b)
…		…
2468	#define MIN_STAT_INTERVAL 0.1074891	2913	#define MIN_STAT_INTERVAL 0.1074891
2469		2914
2470	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2915	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2471		2916
2472	#if EV_USE_INOTIFY	2917	#if EV_USE_INOTIFY
2473	# define EV_INOTIFY_BUFSIZE 8192	2918
		2919	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2920	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2474		2921
2475	static void noinline	2922	static void noinline
2476	infy_add (EV_P_ ev_stat *w)	2923	infy_add (EV_P_ ev_stat *w)
2477	{	2924	{
2478	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);	2925	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);
2479		2926
2480	if (w->wd < 0)	2927	if (w->wd >= 0)
		2928	{
		2929	struct statfs sfs;
		2930
		2931	/* now local changes will be tracked by inotify, but remote changes won't */
		2932	/* unless the filesystem is known to be local, we therefore still poll */
		2933	/* also do poll on <2.6.25, but with normal frequency */
		2934
		2935	if (!fs_2625)
		2936	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2937	else if (!statfs (w->path, &sfs)
		2938	&& (sfs.f_type == 0x1373 /* devfs */
		2939	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2940	|| sfs.f_type == 0x3153464a /* jfs */
		2941	|| sfs.f_type == 0x52654973 /* reiser3 */
		2942	|| sfs.f_type == 0x01021994 /* tempfs */
		2943	|| sfs.f_type == 0x58465342 /* xfs */))
		2944	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2945	else
		2946	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2481	{	2947	}
		2948	else
		2949	{
		2950	/* can't use inotify, continue to stat */
2482	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2951	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2483	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2484		2952
2485	/* monitor some parent directory for speedup hints */	2953	/* if path is not there, monitor some parent directory for speedup hints */
2486	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2954	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2487	/* but an efficiency issue only */	2955	/* but an efficiency issue only */
2488	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2956	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2489	{	2957	{
2490	char path [4096];	2958	char path [4096];
…		…
2506	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2974	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2507	}	2975	}
2508	}	2976	}
2509		2977
2510	if (w->wd >= 0)	2978	if (w->wd >= 0)
2511	{
2512	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2979	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2513		2980
2514	/* now local changes will be tracked by inotify, but remote changes won't */	2981	/* now re-arm timer, if required */
2515	/* unless the filesystem it known to be local, we therefore still poll */	2982	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2516	/* also do poll on <2.6.25, but with normal frequency */
2517	struct statfs sfs;
2518
2519	if (fs_2625 && !statfs (w->path, &sfs))
2520	if (sfs.f_type == 0x1373 /* devfs */
2521	|| sfs.f_type == 0xEF53 /* ext2/3 */
2522	|| sfs.f_type == 0x3153464a /* jfs */
2523	|| sfs.f_type == 0x52654973 /* reiser3 */
2524	|| sfs.f_type == 0x01021994 /* tempfs */
2525	|| sfs.f_type == 0x58465342 /* xfs */)
2526	return;
2527
2528	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2529	ev_timer_again (EV_A_ &w->timer);	2983	ev_timer_again (EV_A_ &w->timer);
2530	}	2984	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2531	}	2985	}
2532		2986
2533	static void noinline	2987	static void noinline
2534	infy_del (EV_P_ ev_stat *w)	2988	infy_del (EV_P_ ev_stat *w)
2535	{	2989	{
…		…
2580		3034
2581	static void	3035	static void
2582	infy_cb (EV_P_ ev_io *w, int revents)	3036	infy_cb (EV_P_ ev_io *w, int revents)
2583	{	3037	{
2584	char buf [EV_INOTIFY_BUFSIZE];	3038	char buf [EV_INOTIFY_BUFSIZE];
2585	struct inotify_event *ev = (struct inotify_event *)buf;
2586	int ofs;	3039	int ofs;
2587	int len = read (fs_fd, buf, sizeof (buf));	3040	int len = read (fs_fd, buf, sizeof (buf));
2588		3041
2589	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3042	for (ofs = 0; ofs < len; )
		3043	{
		3044	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2590	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3045	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3046	ofs += sizeof (struct inotify_event) + ev->len;
		3047	}
2591	}	3048	}
2592		3049
2593	void inline_size	3050	inline_size unsigned int
		3051	ev_linux_version (void)
		3052	{
		3053	struct utsname buf;
		3054	unsigned int v;
		3055	int i;
		3056	char *p = buf.release;
		3057
		3058	if (uname (&buf))
		3059	return 0;
		3060
		3061	for (i = 3+1; --i; )
		3062	{
		3063	unsigned int c = 0;
		3064
		3065	for (;;)
		3066	{
		3067	if (*p >= '0' && *p <= '9')
		3068	c = c * 10 + *p++ - '0';
		3069	else
		3070	{
		3071	p += *p == '.';
		3072	break;
		3073	}
		3074	}
		3075
		3076	v = (v << 8) | c;
		3077	}
		3078
		3079	return v;
		3080	}
		3081
		3082	inline_size void
2594	check_2625 (EV_P)	3083	ev_check_2625 (EV_P)
2595	{	3084	{
2596	/* kernels < 2.6.25 are borked	3085	/* kernels < 2.6.25 are borked
2597	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3086	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2598	*/	3087	*/
2599	struct utsname buf;	3088	if (ev_linux_version () < 0x020619)
2600	int major, minor, micro;
2601
2602	if (uname (&buf))
2603	return;	3089	return;
2604		3090
2605	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2606	return;
2607
2608	if (major < 2
2609	|| (major == 2 && minor < 6)
2610	|| (major == 2 && minor == 6 && micro < 25))
2611	return;
2612
2613	fs_2625 = 1;	3091	fs_2625 = 1;
2614	}	3092	}
2615		3093
2616	void inline_size	3094	inline_size int
		3095	infy_newfd (void)
		3096	{
		3097	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3098	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3099	if (fd >= 0)
		3100	return fd;
		3101	#endif
		3102	return inotify_init ();
		3103	}
		3104
		3105	inline_size void
2617	infy_init (EV_P)	3106	infy_init (EV_P)
2618	{	3107	{
2619	if (fs_fd != -2)	3108	if (fs_fd != -2)
2620	return;	3109	return;
2621		3110
2622	fs_fd = -1;	3111	fs_fd = -1;
2623		3112
2624	check_2625 (EV_A);	3113	ev_check_2625 (EV_A);
2625		3114
2626	fs_fd = inotify_init ();	3115	fs_fd = infy_newfd ();
2627		3116
2628	if (fs_fd >= 0)	3117	if (fs_fd >= 0)
2629	{	3118	{
		3119	fd_intern (fs_fd);
2630	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3120	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2631	ev_set_priority (&fs_w, EV_MAXPRI);	3121	ev_set_priority (&fs_w, EV_MAXPRI);
2632	ev_io_start (EV_A_ &fs_w);	3122	ev_io_start (EV_A_ &fs_w);
		3123	ev_unref (EV_A);
2633	}	3124	}
2634	}	3125	}
2635		3126
2636	void inline_size	3127	inline_size void
2637	infy_fork (EV_P)	3128	infy_fork (EV_P)
2638	{	3129	{
2639	int slot;	3130	int slot;
2640		3131
2641	if (fs_fd < 0)	3132	if (fs_fd < 0)
2642	return;	3133	return;
2643		3134
		3135	ev_ref (EV_A);
		3136	ev_io_stop (EV_A_ &fs_w);
2644	close (fs_fd);	3137	close (fs_fd);
2645	fs_fd = inotify_init ();	3138	fs_fd = infy_newfd ();
		3139
		3140	if (fs_fd >= 0)
		3141	{
		3142	fd_intern (fs_fd);
		3143	ev_io_set (&fs_w, fs_fd, EV_READ);
		3144	ev_io_start (EV_A_ &fs_w);
		3145	ev_unref (EV_A);
		3146	}
2646		3147
2647	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3148	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2648	{	3149	{
2649	WL w_ = fs_hash [slot].head;	3150	WL w_ = fs_hash [slot].head;
2650	fs_hash [slot].head = 0;	3151	fs_hash [slot].head = 0;
…		…
2657	w->wd = -1;	3158	w->wd = -1;
2658		3159
2659	if (fs_fd >= 0)	3160	if (fs_fd >= 0)
2660	infy_add (EV_A_ w); /* re-add, no matter what */	3161	infy_add (EV_A_ w); /* re-add, no matter what */
2661	else	3162	else
		3163	{
		3164	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3165	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2662	ev_timer_again (EV_A_ &w->timer);	3166	ev_timer_again (EV_A_ &w->timer);
		3167	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3168	}
2663	}	3169	}
2664	}	3170	}
2665	}	3171	}
2666		3172
2667	#endif	3173	#endif
…		…
2684	static void noinline	3190	static void noinline
2685	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3191	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2686	{	3192	{
2687	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3193	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2688		3194
2689	/* we copy this here each the time so that */	3195	ev_statdata prev = w->attr;
2690	/* prev has the old value when the callback gets invoked */
2691	w->prev = w->attr;
2692	ev_stat_stat (EV_A_ w);	3196	ev_stat_stat (EV_A_ w);
2693		3197
2694	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3198	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2695	if (	3199	if (
2696	w->prev.st_dev != w->attr.st_dev	3200	prev.st_dev != w->attr.st_dev
2697	|| w->prev.st_ino != w->attr.st_ino	3201	|| prev.st_ino != w->attr.st_ino
2698	|| w->prev.st_mode != w->attr.st_mode	3202	|| prev.st_mode != w->attr.st_mode
2699	|| w->prev.st_nlink != w->attr.st_nlink	3203	|| prev.st_nlink != w->attr.st_nlink
2700	|| w->prev.st_uid != w->attr.st_uid	3204	|| prev.st_uid != w->attr.st_uid
2701	|| w->prev.st_gid != w->attr.st_gid	3205	|| prev.st_gid != w->attr.st_gid
2702	|| w->prev.st_rdev != w->attr.st_rdev	3206	|| prev.st_rdev != w->attr.st_rdev
2703	|| w->prev.st_size != w->attr.st_size	3207	|| prev.st_size != w->attr.st_size
2704	|| w->prev.st_atime != w->attr.st_atime	3208	|| prev.st_atime != w->attr.st_atime
2705	|| w->prev.st_mtime != w->attr.st_mtime	3209	|| prev.st_mtime != w->attr.st_mtime
2706	|| w->prev.st_ctime != w->attr.st_ctime	3210	|| prev.st_ctime != w->attr.st_ctime
2707	) {	3211	) {
		3212	/* we only update w->prev on actual differences */
		3213	/* in case we test more often than invoke the callback, */
		3214	/* to ensure that prev is always different to attr */
		3215	w->prev = prev;
		3216
2708	#if EV_USE_INOTIFY	3217	#if EV_USE_INOTIFY
2709	if (fs_fd >= 0)	3218	if (fs_fd >= 0)
2710	{	3219	{
2711	infy_del (EV_A_ w);	3220	infy_del (EV_A_ w);
2712	infy_add (EV_A_ w);	3221	infy_add (EV_A_ w);
…		…
2737		3246
2738	if (fs_fd >= 0)	3247	if (fs_fd >= 0)
2739	infy_add (EV_A_ w);	3248	infy_add (EV_A_ w);
2740	else	3249	else
2741	#endif	3250	#endif
		3251	{
2742	ev_timer_again (EV_A_ &w->timer);	3252	ev_timer_again (EV_A_ &w->timer);
		3253	ev_unref (EV_A);
		3254	}
2743		3255
2744	ev_start (EV_A_ (W)w, 1);	3256	ev_start (EV_A_ (W)w, 1);
2745		3257
2746	EV_FREQUENT_CHECK;	3258	EV_FREQUENT_CHECK;
2747	}	3259	}
…		…
2756	EV_FREQUENT_CHECK;	3268	EV_FREQUENT_CHECK;
2757		3269
2758	#if EV_USE_INOTIFY	3270	#if EV_USE_INOTIFY
2759	infy_del (EV_A_ w);	3271	infy_del (EV_A_ w);
2760	#endif	3272	#endif
		3273
		3274	if (ev_is_active (&w->timer))
		3275	{
		3276	ev_ref (EV_A);
2761	ev_timer_stop (EV_A_ &w->timer);	3277	ev_timer_stop (EV_A_ &w->timer);
		3278	}
2762		3279
2763	ev_stop (EV_A_ (W)w);	3280	ev_stop (EV_A_ (W)w);
2764		3281
2765	EV_FREQUENT_CHECK;	3282	EV_FREQUENT_CHECK;
2766	}	3283	}
…		…
2811		3328
2812	EV_FREQUENT_CHECK;	3329	EV_FREQUENT_CHECK;
2813	}	3330	}
2814	#endif	3331	#endif
2815		3332
		3333	#if EV_PREPARE_ENABLE
2816	void	3334	void
2817	ev_prepare_start (EV_P_ ev_prepare *w)	3335	ev_prepare_start (EV_P_ ev_prepare *w)
2818	{	3336	{
2819	if (expect_false (ev_is_active (w)))	3337	if (expect_false (ev_is_active (w)))
2820	return;	3338	return;
…		…
2846		3364
2847	ev_stop (EV_A_ (W)w);	3365	ev_stop (EV_A_ (W)w);
2848		3366
2849	EV_FREQUENT_CHECK;	3367	EV_FREQUENT_CHECK;
2850	}	3368	}
		3369	#endif
2851		3370
		3371	#if EV_CHECK_ENABLE
2852	void	3372	void
2853	ev_check_start (EV_P_ ev_check *w)	3373	ev_check_start (EV_P_ ev_check *w)
2854	{	3374	{
2855	if (expect_false (ev_is_active (w)))	3375	if (expect_false (ev_is_active (w)))
2856	return;	3376	return;
…		…
2882		3402
2883	ev_stop (EV_A_ (W)w);	3403	ev_stop (EV_A_ (W)w);
2884		3404
2885	EV_FREQUENT_CHECK;	3405	EV_FREQUENT_CHECK;
2886	}	3406	}
		3407	#endif
2887		3408
2888	#if EV_EMBED_ENABLE	3409	#if EV_EMBED_ENABLE
2889	void noinline	3410	void noinline
2890	ev_embed_sweep (EV_P_ ev_embed *w)	3411	ev_embed_sweep (EV_P_ ev_embed *w)
2891	{	3412	{
…		…
2907	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3428	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2908	{	3429	{
2909	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3430	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2910		3431
2911	{	3432	{
2912	struct ev_loop *loop = w->other;	3433	EV_P = w->other;
2913		3434
2914	while (fdchangecnt)	3435	while (fdchangecnt)
2915	{	3436	{
2916	fd_reify (EV_A);	3437	fd_reify (EV_A);
2917	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3438	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2925	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3446	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2926		3447
2927	ev_embed_stop (EV_A_ w);	3448	ev_embed_stop (EV_A_ w);
2928		3449
2929	{	3450	{
2930	struct ev_loop *loop = w->other;	3451	EV_P = w->other;
2931		3452
2932	ev_loop_fork (EV_A);	3453	ev_loop_fork (EV_A);
2933	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3454	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2934	}	3455	}
2935		3456
…		…
2949	{	3470	{
2950	if (expect_false (ev_is_active (w)))	3471	if (expect_false (ev_is_active (w)))
2951	return;	3472	return;
2952		3473
2953	{	3474	{
2954	struct ev_loop *loop = w->other;	3475	EV_P = w->other;
2955	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3476	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2956	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3477	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2957	}	3478	}
2958		3479
2959	EV_FREQUENT_CHECK;	3480	EV_FREQUENT_CHECK;
…		…
2986		3507
2987	ev_io_stop (EV_A_ &w->io);	3508	ev_io_stop (EV_A_ &w->io);
2988	ev_prepare_stop (EV_A_ &w->prepare);	3509	ev_prepare_stop (EV_A_ &w->prepare);
2989	ev_fork_stop (EV_A_ &w->fork);	3510	ev_fork_stop (EV_A_ &w->fork);
2990		3511
		3512	ev_stop (EV_A_ (W)w);
		3513
2991	EV_FREQUENT_CHECK;	3514	EV_FREQUENT_CHECK;
2992	}	3515	}
2993	#endif	3516	#endif
2994		3517
2995	#if EV_FORK_ENABLE	3518	#if EV_FORK_ENABLE
…		…
3071		3594
3072	void	3595	void
3073	ev_async_send (EV_P_ ev_async *w)	3596	ev_async_send (EV_P_ ev_async *w)
3074	{	3597	{
3075	w->sent = 1;	3598	w->sent = 1;
3076	evpipe_write (EV_A_ &gotasync);	3599	evpipe_write (EV_A_ &async_pending);
3077	}	3600	}
3078	#endif	3601	#endif
3079		3602
3080	/*****************************************************************************/	3603	/*****************************************************************************/
3081		3604
…		…
3145	}	3668	}
3146	}	3669	}
3147		3670
3148	/*****************************************************************************/	3671	/*****************************************************************************/
3149		3672
3150	#if 0	3673	#if EV_WALK_ENABLE
3151	void	3674	void
3152	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	3675	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3153	{	3676	{
3154	int i, j;	3677	int i, j;
3155	ev_watcher_list *wl, *wn;	3678	ev_watcher_list *wl, *wn;
…		…
3171	#if EV_USE_INOTIFY	3694	#if EV_USE_INOTIFY
3172	if (ev_cb ((ev_io *)wl) == infy_cb)	3695	if (ev_cb ((ev_io *)wl) == infy_cb)
3173	;	3696	;
3174	else	3697	else
3175	#endif	3698	#endif
3176	if ((ev_io *)wl != &pipeev)	3699	if ((ev_io *)wl != &pipe_w)
3177	if (types & EV_IO)	3700	if (types & EV_IO)
3178	cb (EV_A_ EV_IO, wl);	3701	cb (EV_A_ EV_IO, wl);
3179		3702
3180	wl = wn;	3703	wl = wn;
3181	}	3704	}
…		…
3218	if (types & EV_ASYNC)	3741	if (types & EV_ASYNC)
3219	for (i = asynccnt; i--; )	3742	for (i = asynccnt; i--; )
3220	cb (EV_A_ EV_ASYNC, asyncs [i]);	3743	cb (EV_A_ EV_ASYNC, asyncs [i]);
3221	#endif	3744	#endif
3222		3745
		3746	#if EV_PREPARE_ENABLE
3223	if (types & EV_PREPARE)	3747	if (types & EV_PREPARE)
3224	for (i = preparecnt; i--; )	3748	for (i = preparecnt; i--; )
3225	#if EV_EMBED_ENABLE	3749	# if EV_EMBED_ENABLE
3226	if (ev_cb (prepares [i]) != embed_prepare_cb)	3750	if (ev_cb (prepares [i]) != embed_prepare_cb)
3227	#endif	3751	# endif
3228	cb (EV_A_ EV_PREPARE, prepares [i]);	3752	cb (EV_A_ EV_PREPARE, prepares [i]);
		3753	#endif
3229		3754
		3755	#if EV_CHECK_ENABLE
3230	if (types & EV_CHECK)	3756	if (types & EV_CHECK)
3231	for (i = checkcnt; i--; )	3757	for (i = checkcnt; i--; )
3232	cb (EV_A_ EV_CHECK, checks [i]);	3758	cb (EV_A_ EV_CHECK, checks [i]);
		3759	#endif
3233		3760
		3761	#if EV_SIGNAL_ENABLE
3234	if (types & EV_SIGNAL)	3762	if (types & EV_SIGNAL)
3235	for (i = 0; i < signalmax; ++i)	3763	for (i = 0; i < EV_NSIG - 1; ++i)
3236	for (wl = signals [i].head; wl; )	3764	for (wl = signals [i].head; wl; )
3237	{	3765	{
3238	wn = wl->next;	3766	wn = wl->next;
3239	cb (EV_A_ EV_SIGNAL, wl);	3767	cb (EV_A_ EV_SIGNAL, wl);
3240	wl = wn;	3768	wl = wn;
3241	}	3769	}
		3770	#endif
3242		3771
		3772	#if EV_CHILD_ENABLE
3243	if (types & EV_CHILD)	3773	if (types & EV_CHILD)
3244	for (i = EV_PID_HASHSIZE; i--; )	3774	for (i = EV_PID_HASHSIZE; i--; )
3245	for (wl = childs [i]; wl; )	3775	for (wl = childs [i]; wl; )
3246	{	3776	{
3247	wn = wl->next;	3777	wn = wl->next;
3248	cb (EV_A_ EV_CHILD, wl);	3778	cb (EV_A_ EV_CHILD, wl);
3249	wl = wn;	3779	wl = wn;
3250	}	3780	}
		3781	#endif
3251	/* EV_STAT 0x00001000 /* stat data changed */	3782	/* EV_STAT 0x00001000 /* stat data changed */
3252	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3783	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3253	}	3784	}
3254	#endif	3785	#endif
3255		3786

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