[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.249 by root, Wed May 21 23:30:52 2008 UTC vs.
Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
		64	# endif
		65
52	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
55	# endif	69	# endif
56	# ifndef EV_USE_REALTIME	70	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	71	# define EV_USE_REALTIME 0
58	# endif	72	# endif
59	# else	73	# else
60	# ifndef EV_USE_MONOTONIC	74	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	75	# define EV_USE_MONOTONIC 0
62	# endif	76	# endif
…		…
126	# define EV_USE_EVENTFD 1	140	# define EV_USE_EVENTFD 1
127	# else	141	# else
128	# define EV_USE_EVENTFD 0	142	# define EV_USE_EVENTFD 0
129	# endif	143	# endif
130	# endif	144	# endif
131		145
132	#endif	146	#endif
133		147
134	#include <math.h>	148	#include <math.h>
135	#include <stdlib.h>	149	#include <stdlib.h>
136	#include <fcntl.h>	150	#include <fcntl.h>
…		…
154	#ifndef _WIN32	168	#ifndef _WIN32
155	# include <sys/time.h>	169	# include <sys/time.h>
156	# include <sys/wait.h>	170	# include <sys/wait.h>
157	# include <unistd.h>	171	# include <unistd.h>
158	#else	172	#else
		173	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	174	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	175	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	176	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	177	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	178	# endif
164	#endif	179	#endif
165		180
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	181	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		182
		183	#ifndef EV_USE_CLOCK_SYSCALL
		184	# if __linux && __GLIBC__ >= 2
		185	# define EV_USE_CLOCK_SYSCALL 1
		186	# else
		187	# define EV_USE_CLOCK_SYSCALL 0
		188	# endif
		189	#endif
		190
168	#ifndef EV_USE_MONOTONIC	191	#ifndef EV_USE_MONOTONIC
		192	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		193	# define EV_USE_MONOTONIC 1
		194	# else
169	# define EV_USE_MONOTONIC 0	195	# define EV_USE_MONOTONIC 0
		196	# endif
170	#endif	197	#endif
171		198
172	#ifndef EV_USE_REALTIME	199	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	200	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174	#endif	201	#endif
175		202
176	#ifndef EV_USE_NANOSLEEP	203	#ifndef EV_USE_NANOSLEEP
		204	# if _POSIX_C_SOURCE >= 199309L
		205	# define EV_USE_NANOSLEEP 1
		206	# else
177	# define EV_USE_NANOSLEEP 0	207	# define EV_USE_NANOSLEEP 0
		208	# endif
178	#endif	209	#endif
179		210
180	#ifndef EV_USE_SELECT	211	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	212	# define EV_USE_SELECT 1
182	#endif	213	#endif
…		…
236	# define EV_USE_EVENTFD 0	267	# define EV_USE_EVENTFD 0
237	# endif	268	# endif
238	#endif	269	#endif
239		270
240	#if 0 /* debugging */	271	#if 0 /* debugging */
241	# define EV_VERIFY 1	272	# define EV_VERIFY 3
242	# define EV_USE_4HEAP 1	273	# define EV_USE_4HEAP 1
243	# define EV_HEAP_CACHE_AT 1	274	# define EV_HEAP_CACHE_AT 1
		275	#endif
		276
		277	#ifndef EV_VERIFY
		278	# define EV_VERIFY !EV_MINIMAL
244	#endif	279	#endif
245		280
246	#ifndef EV_USE_4HEAP	281	#ifndef EV_USE_4HEAP
247	# define EV_USE_4HEAP !EV_MINIMAL	282	# define EV_USE_4HEAP !EV_MINIMAL
248	#endif	283	#endif
…		…
273	# include <sys/select.h>	308	# include <sys/select.h>
274	# endif	309	# endif
275	#endif	310	#endif
276		311
277	#if EV_USE_INOTIFY	312	#if EV_USE_INOTIFY
		313	# include <sys/utsname.h>
		314	# include <sys/statfs.h>
278	# include <sys/inotify.h>	315	# include <sys/inotify.h>
		316	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		317	# ifndef IN_DONT_FOLLOW
		318	# undef EV_USE_INOTIFY
		319	# define EV_USE_INOTIFY 0
		320	# endif
279	#endif	321	#endif
280		322
281	#if EV_SELECT_IS_WINSOCKET	323	#if EV_SELECT_IS_WINSOCKET
282	# include <winsock.h>	324	# include <winsock.h>
		325	#endif
		326
		327	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		328	/* which makes programs even slower. might work on other unices, too. */
		329	#if EV_USE_CLOCK_SYSCALL
		330	# include <syscall.h>
		331	# ifdef SYS_clock_gettime
		332	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		333	# undef EV_USE_MONOTONIC
		334	# define EV_USE_MONOTONIC 1
		335	# else
		336	# undef EV_USE_CLOCK_SYSCALL
		337	# define EV_USE_CLOCK_SYSCALL 0
		338	# endif
283	#endif	339	#endif
284		340
285	#if EV_USE_EVENTFD	341	#if EV_USE_EVENTFD
286	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
287	# include <stdint.h>	343	# include <stdint.h>
…		…
294	# endif	350	# endif
295	#endif	351	#endif
296		352
297	/**/	353	/**/
298		354
299	/* EV_VERIFY: enable internal consistency checks
300	* undefined or zero: no verification done or available
301	* 1 or higher: ev_loop_verify function available
302	* 2 or higher: ev_loop_verify is called frequently
303	*/
304	#if EV_VERIFY >= 1	355	#if EV_VERIFY >= 3
305	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	356	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
306	#else	357	#else
307	# define EV_FREQUENT_CHECK do { } while (0)	358	# define EV_FREQUENT_CHECK do { } while (0)
308	#endif	359	#endif
309		360
…		…
353	typedef ev_watcher_time *WT;	404	typedef ev_watcher_time *WT;
354		405
355	#define ev_active(w) ((W)(w))->active	406	#define ev_active(w) ((W)(w))->active
356	#define ev_at(w) ((WT)(w))->at	407	#define ev_at(w) ((WT)(w))->at
357		408
358	#if EV_USE_MONOTONIC	409	#if EV_USE_REALTIME
359	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	410	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
360	/* giving it a reasonably high chance of working on typical architetcures */	411	/* giving it a reasonably high chance of working on typical architetcures */
		412	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		413	#endif
		414
		415	#if EV_USE_MONOTONIC
361	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	416	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
362	#endif	417	#endif
363		418
364	#ifdef _WIN32	419	#ifdef _WIN32
365	# include "ev_win32.c"	420	# include "ev_win32.c"
…		…
374	{	429	{
375	syserr_cb = cb;	430	syserr_cb = cb;
376	}	431	}
377		432
378	static void noinline	433	static void noinline
379	syserr (const char *msg)	434	ev_syserr (const char *msg)
380	{	435	{
381	if (!msg)	436	if (!msg)
382	msg = "(libev) system error";	437	msg = "(libev) system error";
383		438
384	if (syserr_cb)	439	if (syserr_cb)
…		…
430	#define ev_malloc(size) ev_realloc (0, (size))	485	#define ev_malloc(size) ev_realloc (0, (size))
431	#define ev_free(ptr) ev_realloc ((ptr), 0)	486	#define ev_free(ptr) ev_realloc ((ptr), 0)
432		487
433	/*****************************************************************************/	488	/*****************************************************************************/
434		489
		490	/* file descriptor info structure */
435	typedef struct	491	typedef struct
436	{	492	{
437	WL head;	493	WL head;
438	unsigned char events;	494	unsigned char events; /* the events watched for */
		495	unsigned char reify; /* flag set when this ANFD needs reification */
		496	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
439	unsigned char reify;	497	unsigned char unused;
		498	#if EV_USE_EPOLL
		499	unsigned int egen; /* generation counter to counter epoll bugs */
		500	#endif
440	#if EV_SELECT_IS_WINSOCKET	501	#if EV_SELECT_IS_WINSOCKET
441	SOCKET handle;	502	SOCKET handle;
442	#endif	503	#endif
443	} ANFD;	504	} ANFD;
444		505
		506	/* stores the pending event set for a given watcher */
445	typedef struct	507	typedef struct
446	{	508	{
447	W w;	509	W w;
448	int events;	510	int events; /* the pending event set for the given watcher */
449	} ANPENDING;	511	} ANPENDING;
450		512
451	#if EV_USE_INOTIFY	513	#if EV_USE_INOTIFY
452	/* hash table entry per inotify-id */	514	/* hash table entry per inotify-id */
453	typedef struct	515	typedef struct
…		…
456	} ANFS;	518	} ANFS;
457	#endif	519	#endif
458		520
459	/* Heap Entry */	521	/* Heap Entry */
460	#if EV_HEAP_CACHE_AT	522	#if EV_HEAP_CACHE_AT
		523	/* a heap element */
461	typedef struct {	524	typedef struct {
462	ev_tstamp at;	525	ev_tstamp at;
463	WT w;	526	WT w;
464	} ANHE;	527	} ANHE;
465		528
466	#define ANHE_w(he) (he).w /* access watcher, read-write */	529	#define ANHE_w(he) (he).w /* access watcher, read-write */
467	#define ANHE_at(he) (he).at /* access cached at, read-only */	530	#define ANHE_at(he) (he).at /* access cached at, read-only */
468	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	531	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
469	#else	532	#else
		533	/* a heap element */
470	typedef WT ANHE;	534	typedef WT ANHE;
471		535
472	#define ANHE_w(he) (he)	536	#define ANHE_w(he) (he)
473	#define ANHE_at(he) (he)->at	537	#define ANHE_at(he) (he)->at
474	#define ANHE_at_cache(he)	538	#define ANHE_at_cache(he)
…		…
504		568
505	ev_tstamp	569	ev_tstamp
506	ev_time (void)	570	ev_time (void)
507	{	571	{
508	#if EV_USE_REALTIME	572	#if EV_USE_REALTIME
		573	if (expect_true (have_realtime))
		574	{
509	struct timespec ts;	575	struct timespec ts;
510	clock_gettime (CLOCK_REALTIME, &ts);	576	clock_gettime (CLOCK_REALTIME, &ts);
511	return ts.tv_sec + ts.tv_nsec * 1e-9;	577	return ts.tv_sec + ts.tv_nsec * 1e-9;
512	#else	578	}
		579	#endif
		580
513	struct timeval tv;	581	struct timeval tv;
514	gettimeofday (&tv, 0);	582	gettimeofday (&tv, 0);
515	return tv.tv_sec + tv.tv_usec * 1e-6;	583	return tv.tv_sec + tv.tv_usec * 1e-6;
516	#endif
517	}	584	}
518		585
519	ev_tstamp inline_size	586	inline_size ev_tstamp
520	get_clock (void)	587	get_clock (void)
521	{	588	{
522	#if EV_USE_MONOTONIC	589	#if EV_USE_MONOTONIC
523	if (expect_true (have_monotonic))	590	if (expect_true (have_monotonic))
524	{	591	{
…		…
557	struct timeval tv;	624	struct timeval tv;
558		625
559	tv.tv_sec = (time_t)delay;	626	tv.tv_sec = (time_t)delay;
560	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	627	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
561		628
		629	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		630	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		631	/* by older ones */
562	select (0, 0, 0, 0, &tv);	632	select (0, 0, 0, 0, &tv);
563	#endif	633	#endif
564	}	634	}
565	}	635	}
566		636
567	/*****************************************************************************/	637	/*****************************************************************************/
568		638
569	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /	639	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /
570		640
571	int inline_size	641	/* find a suitable new size for the given array, */
		642	/* hopefully by rounding to a ncie-to-malloc size */
		643	inline_size int
572	array_nextsize (int elem, int cur, int cnt)	644	array_nextsize (int elem, int cur, int cnt)
573	{	645	{
574	int ncur = cur + 1;	646	int ncur = cur + 1;
575		647
576	do	648	do
…		…
593	array_realloc (int elem, void base, int cur, int cnt)	665	array_realloc (int elem, void base, int cur, int cnt)
594	{	666	{
595	cur = array_nextsize (elem, cur, cnt);	667	cur = array_nextsize (elem, cur, cnt);
596	return ev_realloc (base, elem * *cur);	668	return ev_realloc (base, elem * *cur);
597	}	669	}
		670
		671	#define array_init_zero(base,count) \
		672	memset ((void )(base), 0, sizeof ((base)) * (count))
598		673
599	#define array_needsize(type,base,cur,cnt,init) \	674	#define array_needsize(type,base,cur,cnt,init) \
600	if (expect_false ((cnt) > (cur))) \	675	if (expect_false ((cnt) > (cur))) \
601	{ \	676	{ \
602	int ocur_ = (cur); \	677	int ocur_ = (cur); \
…		…
614	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	689	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
615	}	690	}
616	#endif	691	#endif
617		692
618	#define array_free(stem, idx) \	693	#define array_free(stem, idx) \
619	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	694	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
620		695
621	/*****************************************************************************/	696	/*****************************************************************************/
		697
		698	/* dummy callback for pending events */
		699	static void noinline
		700	pendingcb (EV_P_ ev_prepare *w, int revents)
		701	{
		702	}
622		703
623	void noinline	704	void noinline
624	ev_feed_event (EV_P_ void *w, int revents)	705	ev_feed_event (EV_P_ void *w, int revents)
625	{	706	{
626	W w_ = (W)w;	707	W w_ = (W)w;
…		…
635	pendings [pri][w_->pending - 1].w = w_;	716	pendings [pri][w_->pending - 1].w = w_;
636	pendings [pri][w_->pending - 1].events = revents;	717	pendings [pri][w_->pending - 1].events = revents;
637	}	718	}
638	}	719	}
639		720
640	void inline_speed	721	inline_speed void
		722	feed_reverse (EV_P_ W w)
		723	{
		724	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		725	rfeeds [rfeedcnt++] = w;
		726	}
		727
		728	inline_size void
		729	feed_reverse_done (EV_P_ int revents)
		730	{
		731	do
		732	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		733	while (rfeedcnt);
		734	}
		735
		736	inline_speed void
641	queue_events (EV_P_ W *events, int eventcnt, int type)	737	queue_events (EV_P_ W *events, int eventcnt, int type)
642	{	738	{
643	int i;	739	int i;
644		740
645	for (i = 0; i < eventcnt; ++i)	741	for (i = 0; i < eventcnt; ++i)
646	ev_feed_event (EV_A_ events [i], type);	742	ev_feed_event (EV_A_ events [i], type);
647	}	743	}
648		744
649	/*****************************************************************************/	745	/*****************************************************************************/
650		746
651	void inline_size	747	inline_speed void
652	anfds_init (ANFD *base, int count)
653	{
654	while (count--)
655	{
656	base->head = 0;
657	base->events = EV_NONE;
658	base->reify = 0;
659
660	++base;
661	}
662	}
663
664	void inline_speed
665	fd_event (EV_P_ int fd, int revents)	748	fd_event (EV_P_ int fd, int revents)
666	{	749	{
667	ANFD *anfd = anfds + fd;	750	ANFD *anfd = anfds + fd;
668	ev_io *w;	751	ev_io *w;
669		752
…		…
681	{	764	{
682	if (fd >= 0 && fd < anfdmax)	765	if (fd >= 0 && fd < anfdmax)
683	fd_event (EV_A_ fd, revents);	766	fd_event (EV_A_ fd, revents);
684	}	767	}
685		768
686	void inline_size	769	/* make sure the external fd watch events are in-sync */
		770	/* with the kernel/libev internal state */
		771	inline_size void
687	fd_reify (EV_P)	772	fd_reify (EV_P)
688	{	773	{
689	int i;	774	int i;
690		775
691	for (i = 0; i < fdchangecnt; ++i)	776	for (i = 0; i < fdchangecnt; ++i)
…		…
700	events \|= (unsigned char)w->events;	785	events \|= (unsigned char)w->events;
701		786
702	#if EV_SELECT_IS_WINSOCKET	787	#if EV_SELECT_IS_WINSOCKET
703	if (events)	788	if (events)
704	{	789	{
705	unsigned long argp;	790	unsigned long arg;
706	#ifdef EV_FD_TO_WIN32_HANDLE	791	#ifdef EV_FD_TO_WIN32_HANDLE
707	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	792	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
708	#else	793	#else
709	anfd->handle = _get_osfhandle (fd);	794	anfd->handle = _get_osfhandle (fd);
710	#endif	795	#endif
711	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	796	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
712	}	797	}
713	#endif	798	#endif
714		799
715	{	800	{
716	unsigned char o_events = anfd->events;	801	unsigned char o_events = anfd->events;
717	unsigned char o_reify = anfd->reify;	802	unsigned char o_reify = anfd->reify;
718		803
719	anfd->reify = 0;	804	anfd->reify = 0;
720	anfd->events = events;	805	anfd->events = events;
721		806
722	if (o_events != events \|\| o_reify & EV_IOFDSET)	807	if (o_events != events \|\| o_reify & EV__IOFDSET)
723	backend_modify (EV_A_ fd, o_events, events);	808	backend_modify (EV_A_ fd, o_events, events);
724	}	809	}
725	}	810	}
726		811
727	fdchangecnt = 0;	812	fdchangecnt = 0;
728	}	813	}
729		814
730	void inline_size	815	/* something about the given fd changed */
		816	inline_size void
731	fd_change (EV_P_ int fd, int flags)	817	fd_change (EV_P_ int fd, int flags)
732	{	818	{
733	unsigned char reify = anfds [fd].reify;	819	unsigned char reify = anfds [fd].reify;
734	anfds [fd].reify \|= flags;	820	anfds [fd].reify \|= flags;
735		821
…		…
739	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	825	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
740	fdchanges [fdchangecnt - 1] = fd;	826	fdchanges [fdchangecnt - 1] = fd;
741	}	827	}
742	}	828	}
743		829
744	void inline_speed	830	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		831	inline_speed void
745	fd_kill (EV_P_ int fd)	832	fd_kill (EV_P_ int fd)
746	{	833	{
747	ev_io *w;	834	ev_io *w;
748		835
749	while ((w = (ev_io *)anfds [fd].head))	836	while ((w = (ev_io *)anfds [fd].head))
…		…
751	ev_io_stop (EV_A_ w);	838	ev_io_stop (EV_A_ w);
752	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	839	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
753	}	840	}
754	}	841	}
755		842
756	int inline_size	843	/* check whether the given fd is atcually valid, for error recovery */
		844	inline_size int
757	fd_valid (int fd)	845	fd_valid (int fd)
758	{	846	{
759	#ifdef _WIN32	847	#ifdef _WIN32
760	return _get_osfhandle (fd) != -1;	848	return _get_osfhandle (fd) != -1;
761	#else	849	#else
…		…
769	{	857	{
770	int fd;	858	int fd;
771		859
772	for (fd = 0; fd < anfdmax; ++fd)	860	for (fd = 0; fd < anfdmax; ++fd)
773	if (anfds [fd].events)	861	if (anfds [fd].events)
774	if (!fd_valid (fd) == -1 && errno == EBADF)	862	if (!fd_valid (fd) && errno == EBADF)
775	fd_kill (EV_A_ fd);	863	fd_kill (EV_A_ fd);
776	}	864	}
777		865
778	/* called on ENOMEM in select/poll to kill some fds and retry */	866	/* called on ENOMEM in select/poll to kill some fds and retry */
779	static void noinline	867	static void noinline
…		…
797		885
798	for (fd = 0; fd < anfdmax; ++fd)	886	for (fd = 0; fd < anfdmax; ++fd)
799	if (anfds [fd].events)	887	if (anfds [fd].events)
800	{	888	{
801	anfds [fd].events = 0;	889	anfds [fd].events = 0;
		890	anfds [fd].emask = 0;
802	fd_change (EV_A_ fd, EV_IOFDSET \| 1);	891	fd_change (EV_A_ fd, EV__IOFDSET \| 1);
803	}	892	}
804	}	893	}
805		894
806	/*****************************************************************************/	895	/*****************************************************************************/
807		896
…		…
823	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	912	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
824	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	913	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
825	#define UPHEAP_DONE(p,k) ((p) == (k))	914	#define UPHEAP_DONE(p,k) ((p) == (k))
826		915
827	/* away from the root */	916	/* away from the root */
828	void inline_speed	917	inline_speed void
829	downheap (ANHE *heap, int N, int k)	918	downheap (ANHE *heap, int N, int k)
830	{	919	{
831	ANHE he = heap [k];	920	ANHE he = heap [k];
832	ANHE *E = heap + N + HEAP0;	921	ANHE *E = heap + N + HEAP0;
833		922
…		…
873	#define HEAP0 1	962	#define HEAP0 1
874	#define HPARENT(k) ((k) >> 1)	963	#define HPARENT(k) ((k) >> 1)
875	#define UPHEAP_DONE(p,k) (!(p))	964	#define UPHEAP_DONE(p,k) (!(p))
876		965
877	/* away from the root */	966	/* away from the root */
878	void inline_speed	967	inline_speed void
879	downheap (ANHE *heap, int N, int k)	968	downheap (ANHE *heap, int N, int k)
880	{	969	{
881	ANHE he = heap [k];	970	ANHE he = heap [k];
882		971
883	for (;;)	972	for (;;)
…		…
903	ev_active (ANHE_w (he)) = k;	992	ev_active (ANHE_w (he)) = k;
904	}	993	}
905	#endif	994	#endif
906		995
907	/* towards the root */	996	/* towards the root */
908	void inline_speed	997	inline_speed void
909	upheap (ANHE *heap, int k)	998	upheap (ANHE *heap, int k)
910	{	999	{
911	ANHE he = heap [k];	1000	ANHE he = heap [k];
912		1001
913	for (;;)	1002	for (;;)
…		…
924		1013
925	heap [k] = he;	1014	heap [k] = he;
926	ev_active (ANHE_w (he)) = k;	1015	ev_active (ANHE_w (he)) = k;
927	}	1016	}
928		1017
929	void inline_size	1018	/* move an element suitably so it is in a correct place */
		1019	inline_size void
930	adjustheap (ANHE *heap, int N, int k)	1020	adjustheap (ANHE *heap, int N, int k)
931	{	1021	{
932	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1022	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
933	upheap (heap, k);	1023	upheap (heap, k);
934	else	1024	else
935	downheap (heap, N, k);	1025	downheap (heap, N, k);
936	}	1026	}
937		1027
938	/* rebuild the heap: this function is used only once and executed rarely */	1028	/* rebuild the heap: this function is used only once and executed rarely */
939	void inline_size	1029	inline_size void
940	reheap (ANHE *heap, int N)	1030	reheap (ANHE *heap, int N)
941	{	1031	{
942	int i;	1032	int i;
		1033
943	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1034	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
944	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */	1035	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
945	for (i = 0; i < N; ++i)	1036	for (i = 0; i < N; ++i)
946	upheap (heap, i + HEAP0);	1037	upheap (heap, i + HEAP0);
947	}	1038	}
948		1039
949	#if EV_VERIFY
950	static void
951	checkheap (ANHE *heap, int N)
952	{
953	int i;
954
955	for (i = HEAP0; i < N + HEAP0; ++i)
956	{
957	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
958	assert (("heap condition violated", i == HEAP0 \|\| ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
959	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
960	}
961	}
962	#endif
963
964	/*****************************************************************************/	1040	/*****************************************************************************/
965		1041
		1042	/* associate signal watchers to a signal signal */
966	typedef struct	1043	typedef struct
967	{	1044	{
968	WL head;	1045	WL head;
969	EV_ATOMIC_T gotsig;	1046	EV_ATOMIC_T gotsig;
970	} ANSIG;	1047	} ANSIG;
…		…
972	static ANSIG *signals;	1049	static ANSIG *signals;
973	static int signalmax;	1050	static int signalmax;
974		1051
975	static EV_ATOMIC_T gotsig;	1052	static EV_ATOMIC_T gotsig;
976		1053
977	void inline_size
978	signals_init (ANSIG *base, int count)
979	{
980	while (count--)
981	{
982	base->head = 0;
983	base->gotsig = 0;
984
985	++base;
986	}
987	}
988
989	/*****************************************************************************/	1054	/*****************************************************************************/
990		1055
991	void inline_speed	1056	/* used to prepare libev internal fd's */
		1057	/* this is not fork-safe */
		1058	inline_speed void
992	fd_intern (int fd)	1059	fd_intern (int fd)
993	{	1060	{
994	#ifdef _WIN32	1061	#ifdef _WIN32
995	int arg = 1;	1062	unsigned long arg = 1;
996	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1063	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
997	#else	1064	#else
998	fcntl (fd, F_SETFD, FD_CLOEXEC);	1065	fcntl (fd, F_SETFD, FD_CLOEXEC);
999	fcntl (fd, F_SETFL, O_NONBLOCK);	1066	fcntl (fd, F_SETFL, O_NONBLOCK);
1000	#endif	1067	#endif
1001	}	1068	}
1002		1069
1003	static void noinline	1070	static void noinline
1004	evpipe_init (EV_P)	1071	evpipe_init (EV_P)
1005	{	1072	{
1006	if (!ev_is_active (&pipeev))	1073	if (!ev_is_active (&pipe_w))
1007	{	1074	{
1008	#if EV_USE_EVENTFD	1075	#if EV_USE_EVENTFD
1009	if ((evfd = eventfd (0, 0)) >= 0)	1076	if ((evfd = eventfd (0, 0)) >= 0)
1010	{	1077	{
1011	evpipe [0] = -1;	1078	evpipe [0] = -1;
1012	fd_intern (evfd);	1079	fd_intern (evfd);
1013	ev_io_set (&pipeev, evfd, EV_READ);	1080	ev_io_set (&pipe_w, evfd, EV_READ);
1014	}	1081	}
1015	else	1082	else
1016	#endif	1083	#endif
1017	{	1084	{
1018	while (pipe (evpipe))	1085	while (pipe (evpipe))
1019	syserr ("(libev) error creating signal/async pipe");	1086	ev_syserr ("(libev) error creating signal/async pipe");
1020		1087
1021	fd_intern (evpipe [0]);	1088	fd_intern (evpipe [0]);
1022	fd_intern (evpipe [1]);	1089	fd_intern (evpipe [1]);
1023	ev_io_set (&pipeev, evpipe [0], EV_READ);	1090	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1024	}	1091	}
1025		1092
1026	ev_io_start (EV_A_ &pipeev);	1093	ev_io_start (EV_A_ &pipe_w);
1027	ev_unref (EV_A); /* watcher should not keep loop alive */	1094	ev_unref (EV_A); /* watcher should not keep loop alive */
1028	}	1095	}
1029	}	1096	}
1030		1097
1031	void inline_size	1098	inline_size void
1032	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1099	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1033	{	1100	{
1034	if (!*flag)	1101	if (!*flag)
1035	{	1102	{
1036	int old_errno = errno; /* save errno because write might clobber it */	1103	int old_errno = errno; /* save errno because write might clobber it */
…		…
1049		1116
1050	errno = old_errno;	1117	errno = old_errno;
1051	}	1118	}
1052	}	1119	}
1053		1120
		1121	/* called whenever the libev signal pipe */
		1122	/* got some events (signal, async) */
1054	static void	1123	static void
1055	pipecb (EV_P_ ev_io *iow, int revents)	1124	pipecb (EV_P_ ev_io *iow, int revents)
1056	{	1125	{
1057	#if EV_USE_EVENTFD	1126	#if EV_USE_EVENTFD
1058	if (evfd >= 0)	1127	if (evfd >= 0)
…		…
1114	ev_feed_signal_event (EV_P_ int signum)	1183	ev_feed_signal_event (EV_P_ int signum)
1115	{	1184	{
1116	WL w;	1185	WL w;
1117		1186
1118	#if EV_MULTIPLICITY	1187	#if EV_MULTIPLICITY
1119	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1188	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1120	#endif	1189	#endif
1121		1190
1122	--signum;	1191	--signum;
1123		1192
1124	if (signum < 0 \|\| signum >= signalmax)	1193	if (signum < 0 \|\| signum >= signalmax)
…		…
1140		1209
1141	#ifndef WIFCONTINUED	1210	#ifndef WIFCONTINUED
1142	# define WIFCONTINUED(status) 0	1211	# define WIFCONTINUED(status) 0
1143	#endif	1212	#endif
1144		1213
1145	void inline_speed	1214	/* handle a single child status event */
		1215	inline_speed void
1146	child_reap (EV_P_ int chain, int pid, int status)	1216	child_reap (EV_P_ int chain, int pid, int status)
1147	{	1217	{
1148	ev_child *w;	1218	ev_child *w;
1149	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1219	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1150		1220
…		…
1163		1233
1164	#ifndef WCONTINUED	1234	#ifndef WCONTINUED
1165	# define WCONTINUED 0	1235	# define WCONTINUED 0
1166	#endif	1236	#endif
1167		1237
		1238	/* called on sigchld etc., calls waitpid */
1168	static void	1239	static void
1169	childcb (EV_P_ ev_signal *sw, int revents)	1240	childcb (EV_P_ ev_signal *sw, int revents)
1170	{	1241	{
1171	int pid, status;	1242	int pid, status;
1172		1243
…		…
1253	/* kqueue is borked on everything but netbsd apparently */	1324	/* kqueue is borked on everything but netbsd apparently */
1254	/* it usually doesn't work correctly on anything but sockets and pipes */	1325	/* it usually doesn't work correctly on anything but sockets and pipes */
1255	flags &= ~EVBACKEND_KQUEUE;	1326	flags &= ~EVBACKEND_KQUEUE;
1256	#endif	1327	#endif
1257	#ifdef __APPLE__	1328	#ifdef __APPLE__
1258	// flags &= ~EVBACKEND_KQUEUE; for documentation	1329	/* only select works correctly on that "unix-certified" platform */
1259	flags &= ~EVBACKEND_POLL;	1330	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1331	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1260	#endif	1332	#endif
1261		1333
1262	return flags;	1334	return flags;
1263	}	1335	}
1264		1336
…		…
1296	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1368	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1297	{	1369	{
1298	timeout_blocktime = interval;	1370	timeout_blocktime = interval;
1299	}	1371	}
1300		1372
		1373	/* initialise a loop structure, must be zero-initialised */
1301	static void noinline	1374	static void noinline
1302	loop_init (EV_P_ unsigned int flags)	1375	loop_init (EV_P_ unsigned int flags)
1303	{	1376	{
1304	if (!backend)	1377	if (!backend)
1305	{	1378	{
		1379	#if EV_USE_REALTIME
		1380	if (!have_realtime)
		1381	{
		1382	struct timespec ts;
		1383
		1384	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1385	have_realtime = 1;
		1386	}
		1387	#endif
		1388
1306	#if EV_USE_MONOTONIC	1389	#if EV_USE_MONOTONIC
		1390	if (!have_monotonic)
1307	{	1391	{
1308	struct timespec ts;	1392	struct timespec ts;
		1393
1309	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1394	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1310	have_monotonic = 1;	1395	have_monotonic = 1;
1311	}	1396	}
1312	#endif	1397	#endif
1313		1398
1314	ev_rt_now = ev_time ();	1399	ev_rt_now = ev_time ();
1315	mn_now = get_clock ();	1400	mn_now = get_clock ();
1316	now_floor = mn_now;	1401	now_floor = mn_now;
…		…
1353	#endif	1438	#endif
1354	#if EV_USE_SELECT	1439	#if EV_USE_SELECT
1355	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1440	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1356	#endif	1441	#endif
1357		1442
		1443	ev_prepare_init (&pending_w, pendingcb);
		1444
1358	ev_init (&pipeev, pipecb);	1445	ev_init (&pipe_w, pipecb);
1359	ev_set_priority (&pipeev, EV_MAXPRI);	1446	ev_set_priority (&pipe_w, EV_MAXPRI);
1360	}	1447	}
1361	}	1448	}
1362		1449
		1450	/* free up a loop structure */
1363	static void noinline	1451	static void noinline
1364	loop_destroy (EV_P)	1452	loop_destroy (EV_P)
1365	{	1453	{
1366	int i;	1454	int i;
1367		1455
1368	if (ev_is_active (&pipeev))	1456	if (ev_is_active (&pipe_w))
1369	{	1457	{
1370	ev_ref (EV_A); /* signal watcher */	1458	ev_ref (EV_A); /* signal watcher */
1371	ev_io_stop (EV_A_ &pipeev);	1459	ev_io_stop (EV_A_ &pipe_w);
1372		1460
1373	#if EV_USE_EVENTFD	1461	#if EV_USE_EVENTFD
1374	if (evfd >= 0)	1462	if (evfd >= 0)
1375	close (evfd);	1463	close (evfd);
1376	#endif	1464	#endif
…		…
1415	}	1503	}
1416		1504
1417	ev_free (anfds); anfdmax = 0;	1505	ev_free (anfds); anfdmax = 0;
1418		1506
1419	/* have to use the microsoft-never-gets-it-right macro */	1507	/* have to use the microsoft-never-gets-it-right macro */
		1508	array_free (rfeed, EMPTY);
1420	array_free (fdchange, EMPTY);	1509	array_free (fdchange, EMPTY);
1421	array_free (timer, EMPTY);	1510	array_free (timer, EMPTY);
1422	#if EV_PERIODIC_ENABLE	1511	#if EV_PERIODIC_ENABLE
1423	array_free (periodic, EMPTY);	1512	array_free (periodic, EMPTY);
1424	#endif	1513	#endif
…		…
1433		1522
1434	backend = 0;	1523	backend = 0;
1435	}	1524	}
1436		1525
1437	#if EV_USE_INOTIFY	1526	#if EV_USE_INOTIFY
1438	void inline_size infy_fork (EV_P);	1527	inline_size void infy_fork (EV_P);
1439	#endif	1528	#endif
1440		1529
1441	void inline_size	1530	inline_size void
1442	loop_fork (EV_P)	1531	loop_fork (EV_P)
1443	{	1532	{
1444	#if EV_USE_PORT	1533	#if EV_USE_PORT
1445	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1534	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1446	#endif	1535	#endif
…		…
1452	#endif	1541	#endif
1453	#if EV_USE_INOTIFY	1542	#if EV_USE_INOTIFY
1454	infy_fork (EV_A);	1543	infy_fork (EV_A);
1455	#endif	1544	#endif
1456		1545
1457	if (ev_is_active (&pipeev))	1546	if (ev_is_active (&pipe_w))
1458	{	1547	{
1459	/* this "locks" the handlers against writing to the pipe */	1548	/* this "locks" the handlers against writing to the pipe */
1460	/* while we modify the fd vars */	1549	/* while we modify the fd vars */
1461	gotsig = 1;	1550	gotsig = 1;
1462	#if EV_ASYNC_ENABLE	1551	#if EV_ASYNC_ENABLE
1463	gotasync = 1;	1552	gotasync = 1;
1464	#endif	1553	#endif
1465		1554
1466	ev_ref (EV_A);	1555	ev_ref (EV_A);
1467	ev_io_stop (EV_A_ &pipeev);	1556	ev_io_stop (EV_A_ &pipe_w);
1468		1557
1469	#if EV_USE_EVENTFD	1558	#if EV_USE_EVENTFD
1470	if (evfd >= 0)	1559	if (evfd >= 0)
1471	close (evfd);	1560	close (evfd);
1472	#endif	1561	#endif
…		…
1477	close (evpipe [1]);	1566	close (evpipe [1]);
1478	}	1567	}
1479		1568
1480	evpipe_init (EV_A);	1569	evpipe_init (EV_A);
1481	/* now iterate over everything, in case we missed something */	1570	/* now iterate over everything, in case we missed something */
1482	pipecb (EV_A_ &pipeev, EV_READ);	1571	pipecb (EV_A_ &pipe_w, EV_READ);
1483	}	1572	}
1484		1573
1485	postfork = 0;	1574	postfork = 0;
1486	}	1575	}
1487		1576
1488	#if EV_MULTIPLICITY	1577	#if EV_MULTIPLICITY
		1578
1489	struct ev_loop *	1579	struct ev_loop *
1490	ev_loop_new (unsigned int flags)	1580	ev_loop_new (unsigned int flags)
1491	{	1581	{
1492	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1582	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
1493		1583
…		…
1513	{	1603	{
1514	postfork = 1; /* must be in line with ev_default_fork */	1604	postfork = 1; /* must be in line with ev_default_fork */
1515	}	1605	}
1516		1606
1517	#if EV_VERIFY	1607	#if EV_VERIFY
1518	static void	1608	static void noinline
		1609	verify_watcher (EV_P_ W w)
		1610	{
		1611	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1612
		1613	if (w->pending)
		1614	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1615	}
		1616
		1617	static void noinline
		1618	verify_heap (EV_P_ ANHE *heap, int N)
		1619	{
		1620	int i;
		1621
		1622	for (i = HEAP0; i < N + HEAP0; ++i)
		1623	{
		1624	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1625	assert (("libev: heap condition violated", i == HEAP0 \|\| ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1626	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1627
		1628	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1629	}
		1630	}
		1631
		1632	static void noinline
1519	array_check (W **ws, int cnt)	1633	array_verify (EV_P_ W *ws, int cnt)
1520	{	1634	{
1521	while (cnt--)	1635	while (cnt--)
		1636	{
1522	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1637	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1638	verify_watcher (EV_A_ ws [cnt]);
		1639	}
1523	}	1640	}
		1641	#endif
1524		1642
1525	static void	1643	void
1526	ev_loop_verify (EV_P)	1644	ev_loop_verify (EV_P)
1527	{	1645	{
		1646	#if EV_VERIFY
1528	int i;	1647	int i;
		1648	WL w;
1529		1649
		1650	assert (activecnt >= -1);
		1651
		1652	assert (fdchangemax >= fdchangecnt);
		1653	for (i = 0; i < fdchangecnt; ++i)
		1654	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1655
		1656	assert (anfdmax >= 0);
		1657	for (i = 0; i < anfdmax; ++i)
		1658	for (w = anfds [i].head; w; w = w->next)
		1659	{
		1660	verify_watcher (EV_A_ (W)w);
		1661	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1662	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1663	}
		1664
		1665	assert (timermax >= timercnt);
1530	checkheap (timers, timercnt);	1666	verify_heap (EV_A_ timers, timercnt);
		1667
1531	#if EV_PERIODIC_ENABLE	1668	#if EV_PERIODIC_ENABLE
		1669	assert (periodicmax >= periodiccnt);
1532	checkheap (periodics, periodiccnt);	1670	verify_heap (EV_A_ periodics, periodiccnt);
1533	#endif	1671	#endif
1534		1672
		1673	for (i = NUMPRI; i--; )
		1674	{
		1675	assert (pendingmax [i] >= pendingcnt [i]);
1535	#if EV_IDLE_ENABLE	1676	#if EV_IDLE_ENABLE
1536	for (i = NUMPRI; i--; )	1677	assert (idleall >= 0);
		1678	assert (idlemax [i] >= idlecnt [i]);
1537	array_check ((W **)idles [i], idlecnt [i]);	1679	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1538	#endif	1680	#endif
		1681	}
		1682
1539	#if EV_FORK_ENABLE	1683	#if EV_FORK_ENABLE
		1684	assert (forkmax >= forkcnt);
1540	array_check ((W **)forks, forkcnt);	1685	array_verify (EV_A_ (W *)forks, forkcnt);
1541	#endif	1686	#endif
1542	array_check ((W **)prepares, preparecnt);	1687
1543	array_check ((W **)checks, checkcnt);
1544	#if EV_ASYNC_ENABLE	1688	#if EV_ASYNC_ENABLE
		1689	assert (asyncmax >= asynccnt);
1545	array_check ((W **)asyncs, asynccnt);	1690	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1691	#endif
		1692
		1693	assert (preparemax >= preparecnt);
		1694	array_verify (EV_A_ (W *)prepares, preparecnt);
		1695
		1696	assert (checkmax >= checkcnt);
		1697	array_verify (EV_A_ (W *)checks, checkcnt);
		1698
		1699	# if 0
		1700	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1701	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1546	#endif	1702	# endif
1547	}
1548	#endif	1703	#endif
		1704	}
1549		1705
1550	#endif	1706	#endif /* multiplicity */
1551		1707
1552	#if EV_MULTIPLICITY	1708	#if EV_MULTIPLICITY
1553	struct ev_loop *	1709	struct ev_loop *
1554	ev_default_loop_init (unsigned int flags)	1710	ev_default_loop_init (unsigned int flags)
1555	#else	1711	#else
…		…
1588	{	1744	{
1589	#if EV_MULTIPLICITY	1745	#if EV_MULTIPLICITY
1590	struct ev_loop *loop = ev_default_loop_ptr;	1746	struct ev_loop *loop = ev_default_loop_ptr;
1591	#endif	1747	#endif
1592		1748
		1749	ev_default_loop_ptr = 0;
		1750
1593	#ifndef _WIN32	1751	#ifndef _WIN32
1594	ev_ref (EV_A); /* child watcher */	1752	ev_ref (EV_A); /* child watcher */
1595	ev_signal_stop (EV_A_ &childev);	1753	ev_signal_stop (EV_A_ &childev);
1596	#endif	1754	#endif
1597		1755
…		…
1603	{	1761	{
1604	#if EV_MULTIPLICITY	1762	#if EV_MULTIPLICITY
1605	struct ev_loop *loop = ev_default_loop_ptr;	1763	struct ev_loop *loop = ev_default_loop_ptr;
1606	#endif	1764	#endif
1607		1765
1608	if (backend)
1609	postfork = 1; /* must be in line with ev_loop_fork */	1766	postfork = 1; /* must be in line with ev_loop_fork */
1610	}	1767	}
1611		1768
1612	/*****************************************************************************/	1769	/*****************************************************************************/
1613		1770
1614	void	1771	void
1615	ev_invoke (EV_P_ void *w, int revents)	1772	ev_invoke (EV_P_ void *w, int revents)
1616	{	1773	{
1617	EV_CB_INVOKE ((W)w, revents);	1774	EV_CB_INVOKE ((W)w, revents);
1618	}	1775	}
1619		1776
1620	void inline_speed	1777	inline_speed void
1621	call_pending (EV_P)	1778	call_pending (EV_P)
1622	{	1779	{
1623	int pri;	1780	int pri;
1624
1625	EV_FREQUENT_CHECK;
1626		1781
1627	for (pri = NUMPRI; pri--; )	1782	for (pri = NUMPRI; pri--; )
1628	while (pendingcnt [pri])	1783	while (pendingcnt [pri])
1629	{	1784	{
1630	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1785	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1631		1786
1632	if (expect_true (p->w))
1633	{
1634	/assert (("non-pending watcher on pending list", p->w->pending));/	1787	/assert (("libev: non-pending watcher on pending list", p->w->pending));/
		1788	/* ^ this is no longer true, as pending_w could be here */
1635		1789
1636	p->w->pending = 0;	1790	p->w->pending = 0;
1637	EV_CB_INVOKE (p->w, p->events);	1791	EV_CB_INVOKE (p->w, p->events);
1638	}	1792	EV_FREQUENT_CHECK;
1639	}	1793	}
1640
1641	EV_FREQUENT_CHECK;
1642	}	1794	}
1643		1795
1644	#if EV_IDLE_ENABLE	1796	#if EV_IDLE_ENABLE
1645	void inline_size	1797	/* make idle watchers pending. this handles the "call-idle */
		1798	/* only when higher priorities are idle" logic */
		1799	inline_size void
1646	idle_reify (EV_P)	1800	idle_reify (EV_P)
1647	{	1801	{
1648	if (expect_false (idleall))	1802	if (expect_false (idleall))
1649	{	1803	{
1650	int pri;	1804	int pri;
…		…
1662	}	1816	}
1663	}	1817	}
1664	}	1818	}
1665	#endif	1819	#endif
1666		1820
1667	void inline_size	1821	/* make timers pending */
		1822	inline_size void
1668	timers_reify (EV_P)	1823	timers_reify (EV_P)
1669	{	1824	{
1670	EV_FREQUENT_CHECK;	1825	EV_FREQUENT_CHECK;
1671		1826
1672	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1827	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1673	{	1828	{
1674	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);	1829	do
1675
1676	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1677
1678	/* first reschedule or stop timer */
1679	if (w->repeat)
1680	{	1830	{
		1831	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);
		1832
		1833	/assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));/
		1834
		1835	/* first reschedule or stop timer */
		1836	if (w->repeat)
		1837	{
1681	ev_at (w) += w->repeat;	1838	ev_at (w) += w->repeat;
1682	if (ev_at (w) < mn_now)	1839	if (ev_at (w) < mn_now)
1683	ev_at (w) = mn_now;	1840	ev_at (w) = mn_now;
1684		1841
1685	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1842	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1686		1843
1687	ANHE_at_cache (timers [HEAP0]);	1844	ANHE_at_cache (timers [HEAP0]);
1688	downheap (timers, timercnt, HEAP0);	1845	downheap (timers, timercnt, HEAP0);
		1846	}
		1847	else
		1848	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1849
		1850	EV_FREQUENT_CHECK;
		1851	feed_reverse (EV_A_ (W)w);
1689	}	1852	}
1690	else	1853	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1691	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1692		1854
1693	EV_FREQUENT_CHECK;
1694	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1855	feed_reverse_done (EV_A_ EV_TIMEOUT);
1695	}	1856	}
1696	}	1857	}
1697		1858
1698	#if EV_PERIODIC_ENABLE	1859	#if EV_PERIODIC_ENABLE
1699	void inline_size	1860	/* make periodics pending */
		1861	inline_size void
1700	periodics_reify (EV_P)	1862	periodics_reify (EV_P)
1701	{	1863	{
1702	EV_FREQUENT_CHECK;	1864	EV_FREQUENT_CHECK;
		1865
1703	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1866	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704	{	1867	{
1705	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);	1868	int feed_count = 0;
1706		1869
1707	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1870	do
1708
1709	/* first reschedule or stop timer */
1710	if (w->reschedule_cb)
1711	{	1871	{
		1872	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);
		1873
		1874	/assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));/
		1875
		1876	/* first reschedule or stop timer */
		1877	if (w->reschedule_cb)
		1878	{
1712	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1879	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1713		1880
1714	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1881	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1715		1882
1716	ANHE_at_cache (periodics [HEAP0]);	1883	ANHE_at_cache (periodics [HEAP0]);
1717	downheap (periodics, periodiccnt, HEAP0);	1884	downheap (periodics, periodiccnt, HEAP0);
		1885	}
		1886	else if (w->interval)
		1887	{
		1888	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1889	/* if next trigger time is not sufficiently in the future, put it there */
		1890	/* this might happen because of floating point inexactness */
		1891	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1892	{
		1893	ev_at (w) += w->interval;
		1894
		1895	/* if interval is unreasonably low we might still have a time in the past */
		1896	/* so correct this. this will make the periodic very inexact, but the user */
		1897	/* has effectively asked to get triggered more often than possible */
		1898	if (ev_at (w) < ev_rt_now)
		1899	ev_at (w) = ev_rt_now;
		1900	}
		1901
		1902	ANHE_at_cache (periodics [HEAP0]);
		1903	downheap (periodics, periodiccnt, HEAP0);
		1904	}
		1905	else
		1906	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1907
1718	EV_FREQUENT_CHECK;	1908	EV_FREQUENT_CHECK;
		1909	feed_reverse (EV_A_ (W)w);
1719	}	1910	}
1720	else if (w->interval)	1911	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1721	{
1722	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1723	/* if next trigger time is not sufficiently in the future, put it there */
1724	/* this might happen because of floating point inexactness */
1725	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1726	{
1727	ev_at (w) += w->interval;
1728		1912
1729	/* if interval is unreasonably low we might still have a time in the past */
1730	/* so correct this. this will make the periodic very inexact, but the user */
1731	/* has effectively asked to get triggered more often than possible */
1732	if (ev_at (w) < ev_rt_now)
1733	ev_at (w) = ev_rt_now;
1734	}
1735
1736	ANHE_at_cache (periodics [HEAP0]);
1737	downheap (periodics, periodiccnt, HEAP0);
1738	}
1739	else
1740	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1741
1742	EV_FREQUENT_CHECK;
1743	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1913	feed_reverse_done (EV_A_ EV_PERIODIC);
1744	}	1914	}
1745	}	1915	}
1746		1916
		1917	/* simply recalculate all periodics */
		1918	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1747	static void noinline	1919	static void noinline
1748	periodics_reschedule (EV_P)	1920	periodics_reschedule (EV_P)
1749	{	1921	{
1750	int i;	1922	int i;
1751		1923
…		…
1764		1936
1765	reheap (periodics, periodiccnt);	1937	reheap (periodics, periodiccnt);
1766	}	1938	}
1767	#endif	1939	#endif
1768		1940
1769	void inline_speed	1941	/* adjust all timers by a given offset */
		1942	static void noinline
		1943	timers_reschedule (EV_P_ ev_tstamp adjust)
		1944	{
		1945	int i;
		1946
		1947	for (i = 0; i < timercnt; ++i)
		1948	{
		1949	ANHE *he = timers + i + HEAP0;
		1950	ANHE_w (*he)->at += adjust;
		1951	ANHE_at_cache (*he);
		1952	}
		1953	}
		1954
		1955	/* fetch new monotonic and realtime times from the kernel */
		1956	/* also detetc if there was a timejump, and act accordingly */
		1957	inline_speed void
1770	time_update (EV_P_ ev_tstamp max_block)	1958	time_update (EV_P_ ev_tstamp max_block)
1771	{	1959	{
1772	int i;
1773
1774	#if EV_USE_MONOTONIC	1960	#if EV_USE_MONOTONIC
1775	if (expect_true (have_monotonic))	1961	if (expect_true (have_monotonic))
1776	{	1962	{
		1963	int i;
1777	ev_tstamp odiff = rtmn_diff;	1964	ev_tstamp odiff = rtmn_diff;
1778		1965
1779	mn_now = get_clock ();	1966	mn_now = get_clock ();
1780		1967
1781	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /	1968	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
…		…
1807	ev_rt_now = ev_time ();	1994	ev_rt_now = ev_time ();
1808	mn_now = get_clock ();	1995	mn_now = get_clock ();
1809	now_floor = mn_now;	1996	now_floor = mn_now;
1810	}	1997	}
1811		1998
		1999	/* no timer adjustment, as the monotonic clock doesn't jump */
		2000	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1812	# if EV_PERIODIC_ENABLE	2001	# if EV_PERIODIC_ENABLE
1813	periodics_reschedule (EV_A);	2002	periodics_reschedule (EV_A);
1814	# endif	2003	# endif
1815	/* no timer adjustment, as the monotonic clock doesn't jump */
1816	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1817	}	2004	}
1818	else	2005	else
1819	#endif	2006	#endif
1820	{	2007	{
1821	ev_rt_now = ev_time ();	2008	ev_rt_now = ev_time ();
1822		2009
1823	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2010	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1824	{	2011	{
		2012	/* adjust timers. this is easy, as the offset is the same for all of them */
		2013	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1825	#if EV_PERIODIC_ENABLE	2014	#if EV_PERIODIC_ENABLE
1826	periodics_reschedule (EV_A);	2015	periodics_reschedule (EV_A);
1827	#endif	2016	#endif
1828	/* adjust timers. this is easy, as the offset is the same for all of them */
1829	for (i = 0; i < timercnt; ++i)
1830	{
1831	ANHE *he = timers + i + HEAP0;
1832	ANHE_w (*he)->at += ev_rt_now - mn_now;
1833	ANHE_at_cache (*he);
1834	}
1835	}	2017	}
1836		2018
1837	mn_now = ev_rt_now;	2019	mn_now = ev_rt_now;
1838	}	2020	}
1839	}	2021	}
1840		2022
1841	void
1842	ev_ref (EV_P)
1843	{
1844	++activecnt;
1845	}
1846
1847	void
1848	ev_unref (EV_P)
1849	{
1850	--activecnt;
1851	}
1852
1853	static int loop_done;	2023	static int loop_done;
1854		2024
1855	void	2025	void
1856	ev_loop (EV_P_ int flags)	2026	ev_loop (EV_P_ int flags)
1857	{	2027	{
…		…
1859		2029
1860	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2030	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1861		2031
1862	do	2032	do
1863	{	2033	{
		2034	#if EV_VERIFY >= 2
		2035	ev_loop_verify (EV_A);
		2036	#endif
		2037
1864	#ifndef _WIN32	2038	#ifndef _WIN32
1865	if (expect_false (curpid)) /* penalise the forking check even more */	2039	if (expect_false (curpid)) /* penalise the forking check even more */
1866	if (expect_false (getpid () != curpid))	2040	if (expect_false (getpid () != curpid))
1867	{	2041	{
1868	curpid = getpid ();	2042	curpid = getpid ();
…		…
1885	{	2059	{
1886	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2060	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1887	call_pending (EV_A);	2061	call_pending (EV_A);
1888	}	2062	}
1889		2063
1890	if (expect_false (!activecnt))
1891	break;
1892
1893	/* we might have forked, so reify kernel state if necessary */	2064	/* we might have forked, so reify kernel state if necessary */
1894	if (expect_false (postfork))	2065	if (expect_false (postfork))
1895	loop_fork (EV_A);	2066	loop_fork (EV_A);
1896		2067
1897	/* update fd-related kernel structures */	2068	/* update fd-related kernel structures */
…		…
1976	ev_unloop (EV_P_ int how)	2147	ev_unloop (EV_P_ int how)
1977	{	2148	{
1978	loop_done = how;	2149	loop_done = how;
1979	}	2150	}
1980		2151
		2152	void
		2153	ev_ref (EV_P)
		2154	{
		2155	++activecnt;
		2156	}
		2157
		2158	void
		2159	ev_unref (EV_P)
		2160	{
		2161	--activecnt;
		2162	}
		2163
		2164	void
		2165	ev_now_update (EV_P)
		2166	{
		2167	time_update (EV_A_ 1e100);
		2168	}
		2169
		2170	void
		2171	ev_suspend (EV_P)
		2172	{
		2173	ev_now_update (EV_A);
		2174	}
		2175
		2176	void
		2177	ev_resume (EV_P)
		2178	{
		2179	ev_tstamp mn_prev = mn_now;
		2180
		2181	ev_now_update (EV_A);
		2182	timers_reschedule (EV_A_ mn_now - mn_prev);
		2183	#if EV_PERIODIC_ENABLE
		2184	/* TODO: really do this? */
		2185	periodics_reschedule (EV_A);
		2186	#endif
		2187	}
		2188
1981	/*****************************************************************************/	2189	/*****************************************************************************/
		2190	/* singly-linked list management, used when the expected list length is short */
1982		2191
1983	void inline_size	2192	inline_size void
1984	wlist_add (WL *head, WL elem)	2193	wlist_add (WL *head, WL elem)
1985	{	2194	{
1986	elem->next = *head;	2195	elem->next = *head;
1987	*head = elem;	2196	*head = elem;
1988	}	2197	}
1989		2198
1990	void inline_size	2199	inline_size void
1991	wlist_del (WL *head, WL elem)	2200	wlist_del (WL *head, WL elem)
1992	{	2201	{
1993	while (*head)	2202	while (*head)
1994	{	2203	{
1995	if (*head == elem)	2204	if (*head == elem)
…		…
2000		2209
2001	head = &(*head)->next;	2210	head = &(*head)->next;
2002	}	2211	}
2003	}	2212	}
2004		2213
2005	void inline_speed	2214	/* internal, faster, version of ev_clear_pending */
		2215	inline_speed void
2006	clear_pending (EV_P_ W w)	2216	clear_pending (EV_P_ W w)
2007	{	2217	{
2008	if (w->pending)	2218	if (w->pending)
2009	{	2219	{
2010	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2220	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2011	w->pending = 0;	2221	w->pending = 0;
2012	}	2222	}
2013	}	2223	}
2014		2224
2015	int	2225	int
…		…
2019	int pending = w_->pending;	2229	int pending = w_->pending;
2020		2230
2021	if (expect_true (pending))	2231	if (expect_true (pending))
2022	{	2232	{
2023	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2233	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2234	p->w = (W)&pending_w;
2024	w_->pending = 0;	2235	w_->pending = 0;
2025	p->w = 0;
2026	return p->events;	2236	return p->events;
2027	}	2237	}
2028	else	2238	else
2029	return 0;	2239	return 0;
2030	}	2240	}
2031		2241
2032	void inline_size	2242	inline_size void
2033	pri_adjust (EV_P_ W w)	2243	pri_adjust (EV_P_ W w)
2034	{	2244	{
2035	int pri = w->priority;	2245	int pri = w->priority;
2036	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2246	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2037	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2247	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2038	w->priority = pri;	2248	w->priority = pri;
2039	}	2249	}
2040		2250
2041	void inline_speed	2251	inline_speed void
2042	ev_start (EV_P_ W w, int active)	2252	ev_start (EV_P_ W w, int active)
2043	{	2253	{
2044	pri_adjust (EV_A_ w);	2254	pri_adjust (EV_A_ w);
2045	w->active = active;	2255	w->active = active;
2046	ev_ref (EV_A);	2256	ev_ref (EV_A);
2047	}	2257	}
2048		2258
2049	void inline_size	2259	inline_size void
2050	ev_stop (EV_P_ W w)	2260	ev_stop (EV_P_ W w)
2051	{	2261	{
2052	ev_unref (EV_A);	2262	ev_unref (EV_A);
2053	w->active = 0;	2263	w->active = 0;
2054	}	2264	}
…		…
2061	int fd = w->fd;	2271	int fd = w->fd;
2062		2272
2063	if (expect_false (ev_is_active (w)))	2273	if (expect_false (ev_is_active (w)))
2064	return;	2274	return;
2065		2275
2066	assert (("ev_io_start called with negative fd", fd >= 0));	2276	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2277	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2067		2278
2068	EV_FREQUENT_CHECK;	2279	EV_FREQUENT_CHECK;
2069		2280
2070	ev_start (EV_A_ (W)w, 1);	2281	ev_start (EV_A_ (W)w, 1);
2071	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2282	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2072	wlist_add (&anfds[fd].head, (WL)w);	2283	wlist_add (&anfds[fd].head, (WL)w);
2073		2284
2074	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);	2285	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| 1);
2075	w->events &= ~EV_IOFDSET;	2286	w->events &= ~EV__IOFDSET;
2076		2287
2077	EV_FREQUENT_CHECK;	2288	EV_FREQUENT_CHECK;
2078	}	2289	}
2079		2290
2080	void noinline	2291	void noinline
…		…
2082	{	2293	{
2083	clear_pending (EV_A_ (W)w);	2294	clear_pending (EV_A_ (W)w);
2084	if (expect_false (!ev_is_active (w)))	2295	if (expect_false (!ev_is_active (w)))
2085	return;	2296	return;
2086		2297
2087	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2298	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2088		2299
2089	EV_FREQUENT_CHECK;	2300	EV_FREQUENT_CHECK;
2090		2301
2091	wlist_del (&anfds[w->fd].head, (WL)w);	2302	wlist_del (&anfds[w->fd].head, (WL)w);
2092	ev_stop (EV_A_ (W)w);	2303	ev_stop (EV_A_ (W)w);
…		…
2102	if (expect_false (ev_is_active (w)))	2313	if (expect_false (ev_is_active (w)))
2103	return;	2314	return;
2104		2315
2105	ev_at (w) += mn_now;	2316	ev_at (w) += mn_now;
2106		2317
2107	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2318	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2108		2319
2109	EV_FREQUENT_CHECK;	2320	EV_FREQUENT_CHECK;
2110		2321
2111	++timercnt;	2322	++timercnt;
2112	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2323	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2115	ANHE_at_cache (timers [ev_active (w)]);	2326	ANHE_at_cache (timers [ev_active (w)]);
2116	upheap (timers, ev_active (w));	2327	upheap (timers, ev_active (w));
2117		2328
2118	EV_FREQUENT_CHECK;	2329	EV_FREQUENT_CHECK;
2119		2330
2120	/assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));/	2331	/assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));/
2121	}	2332	}
2122		2333
2123	void noinline	2334	void noinline
2124	ev_timer_stop (EV_P_ ev_timer *w)	2335	ev_timer_stop (EV_P_ ev_timer *w)
2125	{	2336	{
…		…
2130	EV_FREQUENT_CHECK;	2341	EV_FREQUENT_CHECK;
2131		2342
2132	{	2343	{
2133	int active = ev_active (w);	2344	int active = ev_active (w);
2134		2345
2135	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2346	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2136		2347
2137	--timercnt;	2348	--timercnt;
2138		2349
2139	if (expect_true (active < timercnt + HEAP0))	2350	if (expect_true (active < timercnt + HEAP0))
2140	{	2351	{
…		…
2184		2395
2185	if (w->reschedule_cb)	2396	if (w->reschedule_cb)
2186	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2397	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2187	else if (w->interval)	2398	else if (w->interval)
2188	{	2399	{
2189	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2400	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2190	/* this formula differs from the one in periodic_reify because we do not always round up */	2401	/* this formula differs from the one in periodic_reify because we do not always round up */
2191	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2402	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2192	}	2403	}
2193	else	2404	else
2194	ev_at (w) = w->offset;	2405	ev_at (w) = w->offset;
…		…
2202	ANHE_at_cache (periodics [ev_active (w)]);	2413	ANHE_at_cache (periodics [ev_active (w)]);
2203	upheap (periodics, ev_active (w));	2414	upheap (periodics, ev_active (w));
2204		2415
2205	EV_FREQUENT_CHECK;	2416	EV_FREQUENT_CHECK;
2206		2417
2207	/assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/	2418	/assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/
2208	}	2419	}
2209		2420
2210	void noinline	2421	void noinline
2211	ev_periodic_stop (EV_P_ ev_periodic *w)	2422	ev_periodic_stop (EV_P_ ev_periodic *w)
2212	{	2423	{
…		…
2217	EV_FREQUENT_CHECK;	2428	EV_FREQUENT_CHECK;
2218		2429
2219	{	2430	{
2220	int active = ev_active (w);	2431	int active = ev_active (w);
2221		2432
2222	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2433	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2223		2434
2224	--periodiccnt;	2435	--periodiccnt;
2225		2436
2226	if (expect_true (active < periodiccnt + HEAP0))	2437	if (expect_true (active < periodiccnt + HEAP0))
2227	{	2438	{
…		…
2250		2461
2251	void noinline	2462	void noinline
2252	ev_signal_start (EV_P_ ev_signal *w)	2463	ev_signal_start (EV_P_ ev_signal *w)
2253	{	2464	{
2254	#if EV_MULTIPLICITY	2465	#if EV_MULTIPLICITY
2255	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2466	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2256	#endif	2467	#endif
2257	if (expect_false (ev_is_active (w)))	2468	if (expect_false (ev_is_active (w)))
2258	return;	2469	return;
2259		2470
2260	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2471	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2261		2472
2262	evpipe_init (EV_A);	2473	evpipe_init (EV_A);
2263		2474
2264	EV_FREQUENT_CHECK;	2475	EV_FREQUENT_CHECK;
2265		2476
…		…
2268	sigset_t full, prev;	2479	sigset_t full, prev;
2269	sigfillset (&full);	2480	sigfillset (&full);
2270	sigprocmask (SIG_SETMASK, &full, &prev);	2481	sigprocmask (SIG_SETMASK, &full, &prev);
2271	#endif	2482	#endif
2272		2483
2273	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2484	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2274		2485
2275	#ifndef _WIN32	2486	#ifndef _WIN32
2276	sigprocmask (SIG_SETMASK, &prev, 0);	2487	sigprocmask (SIG_SETMASK, &prev, 0);
2277	#endif	2488	#endif
2278	}	2489	}
…		…
2316		2527
2317	void	2528	void
2318	ev_child_start (EV_P_ ev_child *w)	2529	ev_child_start (EV_P_ ev_child *w)
2319	{	2530	{
2320	#if EV_MULTIPLICITY	2531	#if EV_MULTIPLICITY
2321	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2532	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2322	#endif	2533	#endif
2323	if (expect_false (ev_is_active (w)))	2534	if (expect_false (ev_is_active (w)))
2324	return;	2535	return;
2325		2536
2326	EV_FREQUENT_CHECK;	2537	EV_FREQUENT_CHECK;
…		…
2351	# ifdef _WIN32	2562	# ifdef _WIN32
2352	# undef lstat	2563	# undef lstat
2353	# define lstat(a,b) _stati64 (a,b)	2564	# define lstat(a,b) _stati64 (a,b)
2354	# endif	2565	# endif
2355		2566
2356	#define DEF_STAT_INTERVAL 5.0074891	2567	#define DEF_STAT_INTERVAL 5.0074891
		2568	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2357	#define MIN_STAT_INTERVAL 0.1074891	2569	#define MIN_STAT_INTERVAL 0.1074891
2358		2570
2359	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2571	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2360		2572
2361	#if EV_USE_INOTIFY	2573	#if EV_USE_INOTIFY
2362	# define EV_INOTIFY_BUFSIZE 8192	2574	# define EV_INOTIFY_BUFSIZE 8192
…		…
2366	{	2578	{
2367	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);	2579	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);
2368		2580
2369	if (w->wd < 0)	2581	if (w->wd < 0)
2370	{	2582	{
		2583	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2371	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2584	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2372		2585
2373	/* monitor some parent directory for speedup hints */	2586	/* monitor some parent directory for speedup hints */
2374	/* note that exceeding the hardcoded limit is not a correctness issue, */	2587	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2375	/* but an efficiency issue only */	2588	/* but an efficiency issue only */
2376	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2589	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2377	{	2590	{
2378	char path [4096];	2591	char path [4096];
2379	strcpy (path, w->path);	2592	strcpy (path, w->path);
…		…
2383	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF	2596	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
2384	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);	2597	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
2385		2598
2386	char *pend = strrchr (path, '/');	2599	char *pend = strrchr (path, '/');
2387		2600
2388	if (!pend)	2601	if (!pend \|\| pend == path)
2389	break; /* whoops, no '/', complain to your admin */	2602	break;
2390		2603
2391	*pend = 0;	2604	*pend = 0;
2392	w->wd = inotify_add_watch (fs_fd, path, mask);	2605	w->wd = inotify_add_watch (fs_fd, path, mask);
2393	}	2606	}
2394	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2607	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2395	}	2608	}
2396	}	2609	}
2397	else
2398	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2399		2610
2400	if (w->wd >= 0)	2611	if (w->wd >= 0)
		2612	{
2401	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2613	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2614
		2615	/* now local changes will be tracked by inotify, but remote changes won't */
		2616	/* unless the filesystem it known to be local, we therefore still poll */
		2617	/* also do poll on <2.6.25, but with normal frequency */
		2618	struct statfs sfs;
		2619
		2620	if (fs_2625 && !statfs (w->path, &sfs))
		2621	if (sfs.f_type == 0x1373 /* devfs */
		2622	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2623	\|\| sfs.f_type == 0x3153464a /* jfs */
		2624	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2625	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2626	\|\| sfs.f_type == 0x58465342 /* xfs */)
		2627	return;
		2628
		2629	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2630	ev_timer_again (EV_A_ &w->timer);
		2631	}
2402	}	2632	}
2403		2633
2404	static void noinline	2634	static void noinline
2405	infy_del (EV_P_ ev_stat *w)	2635	infy_del (EV_P_ ev_stat *w)
2406	{	2636	{
…		…
2420		2650
2421	static void noinline	2651	static void noinline
2422	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2652	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2423	{	2653	{
2424	if (slot < 0)	2654	if (slot < 0)
2425	/* overflow, need to check for all hahs slots */	2655	/* overflow, need to check for all hash slots */
2426	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2656	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2427	infy_wd (EV_A_ slot, wd, ev);	2657	infy_wd (EV_A_ slot, wd, ev);
2428	else	2658	else
2429	{	2659	{
2430	WL w_;	2660	WL w_;
…		…
2436		2666
2437	if (w->wd == wd \|\| wd == -1)	2667	if (w->wd == wd \|\| wd == -1)
2438	{	2668	{
2439	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	2669	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2440	{	2670	{
		2671	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2441	w->wd = -1;	2672	w->wd = -1;
2442	infy_add (EV_A_ w); /* re-add, no matter what */	2673	infy_add (EV_A_ w); /* re-add, no matter what */
2443	}	2674	}
2444		2675
2445	stat_timer_cb (EV_A_ &w->timer, 0);	2676	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2458		2689
2459	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2690	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2460	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2691	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2461	}	2692	}
2462		2693
2463	void inline_size	2694	inline_size void
		2695	check_2625 (EV_P)
		2696	{
		2697	/* kernels < 2.6.25 are borked
		2698	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2699	*/
		2700	struct utsname buf;
		2701	int major, minor, micro;
		2702
		2703	if (uname (&buf))
		2704	return;
		2705
		2706	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2707	return;
		2708
		2709	if (major < 2
		2710	\|\| (major == 2 && minor < 6)
		2711	\|\| (major == 2 && minor == 6 && micro < 25))
		2712	return;
		2713
		2714	fs_2625 = 1;
		2715	}
		2716
		2717	inline_size void
2464	infy_init (EV_P)	2718	infy_init (EV_P)
2465	{	2719	{
2466	if (fs_fd != -2)	2720	if (fs_fd != -2)
2467	return;	2721	return;
		2722
		2723	fs_fd = -1;
		2724
		2725	check_2625 (EV_A);
2468		2726
2469	fs_fd = inotify_init ();	2727	fs_fd = inotify_init ();
2470		2728
2471	if (fs_fd >= 0)	2729	if (fs_fd >= 0)
2472	{	2730	{
…		…
2474	ev_set_priority (&fs_w, EV_MAXPRI);	2732	ev_set_priority (&fs_w, EV_MAXPRI);
2475	ev_io_start (EV_A_ &fs_w);	2733	ev_io_start (EV_A_ &fs_w);
2476	}	2734	}
2477	}	2735	}
2478		2736
2479	void inline_size	2737	inline_size void
2480	infy_fork (EV_P)	2738	infy_fork (EV_P)
2481	{	2739	{
2482	int slot;	2740	int slot;
2483		2741
2484	if (fs_fd < 0)	2742	if (fs_fd < 0)
…		…
2500	w->wd = -1;	2758	w->wd = -1;
2501		2759
2502	if (fs_fd >= 0)	2760	if (fs_fd >= 0)
2503	infy_add (EV_A_ w); /* re-add, no matter what */	2761	infy_add (EV_A_ w); /* re-add, no matter what */
2504	else	2762	else
2505	ev_timer_start (EV_A_ &w->timer);	2763	ev_timer_again (EV_A_ &w->timer);
2506	}	2764	}
2507
2508	}	2765	}
2509	}	2766	}
2510		2767
		2768	#endif
		2769
		2770	#ifdef _WIN32
		2771	# define EV_LSTAT(p,b) _stati64 (p, b)
		2772	#else
		2773	# define EV_LSTAT(p,b) lstat (p, b)
2511	#endif	2774	#endif
2512		2775
2513	void	2776	void
2514	ev_stat_stat (EV_P_ ev_stat *w)	2777	ev_stat_stat (EV_P_ ev_stat *w)
2515	{	2778	{
…		…
2542	\|\| w->prev.st_atime != w->attr.st_atime	2805	\|\| w->prev.st_atime != w->attr.st_atime
2543	\|\| w->prev.st_mtime != w->attr.st_mtime	2806	\|\| w->prev.st_mtime != w->attr.st_mtime
2544	\|\| w->prev.st_ctime != w->attr.st_ctime	2807	\|\| w->prev.st_ctime != w->attr.st_ctime
2545	) {	2808	) {
2546	#if EV_USE_INOTIFY	2809	#if EV_USE_INOTIFY
		2810	if (fs_fd >= 0)
		2811	{
2547	infy_del (EV_A_ w);	2812	infy_del (EV_A_ w);
2548	infy_add (EV_A_ w);	2813	infy_add (EV_A_ w);
2549	ev_stat_stat (EV_A_ w); /* avoid race... */	2814	ev_stat_stat (EV_A_ w); /* avoid race... */
		2815	}
2550	#endif	2816	#endif
2551		2817
2552	ev_feed_event (EV_A_ w, EV_STAT);	2818	ev_feed_event (EV_A_ w, EV_STAT);
2553	}	2819	}
2554	}	2820	}
…		…
2557	ev_stat_start (EV_P_ ev_stat *w)	2823	ev_stat_start (EV_P_ ev_stat *w)
2558	{	2824	{
2559	if (expect_false (ev_is_active (w)))	2825	if (expect_false (ev_is_active (w)))
2560	return;	2826	return;
2561		2827
2562	/* since we use memcmp, we need to clear any padding data etc. */
2563	memset (&w->prev, 0, sizeof (ev_statdata));
2564	memset (&w->attr, 0, sizeof (ev_statdata));
2565
2566	ev_stat_stat (EV_A_ w);	2828	ev_stat_stat (EV_A_ w);
2567		2829
		2830	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2568	if (w->interval < MIN_STAT_INTERVAL)	2831	w->interval = MIN_STAT_INTERVAL;
2569	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2570		2832
2571	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2833	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2572	ev_set_priority (&w->timer, ev_priority (w));	2834	ev_set_priority (&w->timer, ev_priority (w));
2573		2835
2574	#if EV_USE_INOTIFY	2836	#if EV_USE_INOTIFY
2575	infy_init (EV_A);	2837	infy_init (EV_A);
2576		2838
2577	if (fs_fd >= 0)	2839	if (fs_fd >= 0)
2578	infy_add (EV_A_ w);	2840	infy_add (EV_A_ w);
2579	else	2841	else
2580	#endif	2842	#endif
2581	ev_timer_start (EV_A_ &w->timer);	2843	ev_timer_again (EV_A_ &w->timer);
2582		2844
2583	ev_start (EV_A_ (W)w, 1);	2845	ev_start (EV_A_ (W)w, 1);
2584		2846
2585	EV_FREQUENT_CHECK;	2847	EV_FREQUENT_CHECK;
2586	}	2848	}
…		…
2756	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3018	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2757	}	3019	}
2758	}	3020	}
2759	}	3021	}
2760		3022
		3023	static void
		3024	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3025	{
		3026	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
		3027
		3028	ev_embed_stop (EV_A_ w);
		3029
		3030	{
		3031	struct ev_loop *loop = w->other;
		3032
		3033	ev_loop_fork (EV_A);
		3034	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3035	}
		3036
		3037	ev_embed_start (EV_A_ w);
		3038	}
		3039
2761	#if 0	3040	#if 0
2762	static void	3041	static void
2763	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3042	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2764	{	3043	{
2765	ev_idle_stop (EV_A_ idle);	3044	ev_idle_stop (EV_A_ idle);
…		…
2772	if (expect_false (ev_is_active (w)))	3051	if (expect_false (ev_is_active (w)))
2773	return;	3052	return;
2774		3053
2775	{	3054	{
2776	struct ev_loop *loop = w->other;	3055	struct ev_loop *loop = w->other;
2777	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3056	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2778	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3057	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2779	}	3058	}
2780		3059
2781	EV_FREQUENT_CHECK;	3060	EV_FREQUENT_CHECK;
2782		3061
…		…
2785		3064
2786	ev_prepare_init (&w->prepare, embed_prepare_cb);	3065	ev_prepare_init (&w->prepare, embed_prepare_cb);
2787	ev_set_priority (&w->prepare, EV_MINPRI);	3066	ev_set_priority (&w->prepare, EV_MINPRI);
2788	ev_prepare_start (EV_A_ &w->prepare);	3067	ev_prepare_start (EV_A_ &w->prepare);
2789		3068
		3069	ev_fork_init (&w->fork, embed_fork_cb);
		3070	ev_fork_start (EV_A_ &w->fork);
		3071
2790	/ev_idle_init (&w->idle, e,bed_idle_cb);/	3072	/ev_idle_init (&w->idle, e,bed_idle_cb);/
2791		3073
2792	ev_start (EV_A_ (W)w, 1);	3074	ev_start (EV_A_ (W)w, 1);
2793		3075
2794	EV_FREQUENT_CHECK;	3076	EV_FREQUENT_CHECK;
…		…
2801	if (expect_false (!ev_is_active (w)))	3083	if (expect_false (!ev_is_active (w)))
2802	return;	3084	return;
2803		3085
2804	EV_FREQUENT_CHECK;	3086	EV_FREQUENT_CHECK;
2805		3087
2806	ev_io_stop (EV_A_ &w->io);	3088	ev_io_stop (EV_A_ &w->io);
2807	ev_prepare_stop (EV_A_ &w->prepare);	3089	ev_prepare_stop (EV_A_ &w->prepare);
2808		3090	ev_fork_stop (EV_A_ &w->fork);
2809	ev_stop (EV_A_ (W)w);
2810		3091
2811	EV_FREQUENT_CHECK;	3092	EV_FREQUENT_CHECK;
2812	}	3093	}
2813	#endif	3094	#endif
2814		3095
…		…
2911	once_cb (EV_P_ struct ev_once *once, int revents)	3192	once_cb (EV_P_ struct ev_once *once, int revents)
2912	{	3193	{
2913	void (cb)(int revents, void arg) = once->cb;	3194	void (cb)(int revents, void arg) = once->cb;
2914	void *arg = once->arg;	3195	void *arg = once->arg;
2915		3196
2916	ev_io_stop (EV_A_ &once->io);	3197	ev_io_stop (EV_A_ &once->io);
2917	ev_timer_stop (EV_A_ &once->to);	3198	ev_timer_stop (EV_A_ &once->to);
2918	ev_free (once);	3199	ev_free (once);
2919		3200
2920	cb (revents, arg);	3201	cb (revents, arg);
2921	}	3202	}
2922		3203
2923	static void	3204	static void
2924	once_cb_io (EV_P_ ev_io *w, int revents)	3205	once_cb_io (EV_P_ ev_io *w, int revents)
2925	{	3206	{
2926	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	3207	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, io));
		3208
		3209	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->to));
2927	}	3210	}
2928		3211
2929	static void	3212	static void
2930	once_cb_to (EV_P_ ev_timer *w, int revents)	3213	once_cb_to (EV_P_ ev_timer *w, int revents)
2931	{	3214	{
2932	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	3215	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, to));
		3216
		3217	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->io));
2933	}	3218	}
2934		3219
2935	void	3220	void
2936	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	3221	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
2937	{	3222	{
…		…
2959	ev_timer_set (&once->to, timeout, 0.);	3244	ev_timer_set (&once->to, timeout, 0.);
2960	ev_timer_start (EV_A_ &once->to);	3245	ev_timer_start (EV_A_ &once->to);
2961	}	3246	}
2962	}	3247	}
2963		3248
		3249	/*****************************************************************************/
		3250
		3251	#if EV_WALK_ENABLE
		3252	void
		3253	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))
		3254	{
		3255	int i, j;
		3256	ev_watcher_list wl, wn;
		3257
		3258	if (types & (EV_IO \| EV_EMBED))
		3259	for (i = 0; i < anfdmax; ++i)
		3260	for (wl = anfds [i].head; wl; )
		3261	{
		3262	wn = wl->next;
		3263
		3264	#if EV_EMBED_ENABLE
		3265	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3266	{
		3267	if (types & EV_EMBED)
		3268	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3269	}
		3270	else
		3271	#endif
		3272	#if EV_USE_INOTIFY
		3273	if (ev_cb ((ev_io *)wl) == infy_cb)
		3274	;
		3275	else
		3276	#endif
		3277	if ((ev_io *)wl != &pipe_w)
		3278	if (types & EV_IO)
		3279	cb (EV_A_ EV_IO, wl);
		3280
		3281	wl = wn;
		3282	}
		3283
		3284	if (types & (EV_TIMER \| EV_STAT))
		3285	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3286	#if EV_STAT_ENABLE
		3287	/TODO: timer is not always active/
		3288	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3289	{
		3290	if (types & EV_STAT)
		3291	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3292	}
		3293	else
		3294	#endif
		3295	if (types & EV_TIMER)
		3296	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3297
		3298	#if EV_PERIODIC_ENABLE
		3299	if (types & EV_PERIODIC)
		3300	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3301	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3302	#endif
		3303
		3304	#if EV_IDLE_ENABLE
		3305	if (types & EV_IDLE)
		3306	for (j = NUMPRI; i--; )
		3307	for (i = idlecnt [j]; i--; )
		3308	cb (EV_A_ EV_IDLE, idles [j][i]);
		3309	#endif
		3310
		3311	#if EV_FORK_ENABLE
		3312	if (types & EV_FORK)
		3313	for (i = forkcnt; i--; )
		3314	if (ev_cb (forks [i]) != embed_fork_cb)
		3315	cb (EV_A_ EV_FORK, forks [i]);
		3316	#endif
		3317
		3318	#if EV_ASYNC_ENABLE
		3319	if (types & EV_ASYNC)
		3320	for (i = asynccnt; i--; )
		3321	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3322	#endif
		3323
		3324	if (types & EV_PREPARE)
		3325	for (i = preparecnt; i--; )
		3326	#if EV_EMBED_ENABLE
		3327	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3328	#endif
		3329	cb (EV_A_ EV_PREPARE, prepares [i]);
		3330
		3331	if (types & EV_CHECK)
		3332	for (i = checkcnt; i--; )
		3333	cb (EV_A_ EV_CHECK, checks [i]);
		3334
		3335	if (types & EV_SIGNAL)
		3336	for (i = 0; i < signalmax; ++i)
		3337	for (wl = signals [i].head; wl; )
		3338	{
		3339	wn = wl->next;
		3340	cb (EV_A_ EV_SIGNAL, wl);
		3341	wl = wn;
		3342	}
		3343
		3344	if (types & EV_CHILD)
		3345	for (i = EV_PID_HASHSIZE; i--; )
		3346	for (wl = childs [i]; wl; )
		3347	{
		3348	wn = wl->next;
		3349	cb (EV_A_ EV_CHILD, wl);
		3350	wl = wn;
		3351	}
		3352	/* EV_STAT 0x00001000 /* stat data changed */
		3353	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3354	}
		3355	#endif
		3356
2964	#if EV_MULTIPLICITY	3357	#if EV_MULTIPLICITY
2965	#include "ev_wrap.h"	3358	#include "ev_wrap.h"
2966	#endif	3359	#endif
2967		3360
2968	#ifdef __cplusplus	3361	#ifdef __cplusplus

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Comparing libev/ev.c (file contents): Revision 1.249 by root, Wed May 21 23:30:52 2008 UTC vs. Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.249 by root, Wed May 21 23:30:52 2008 UTC vs.
Revision 1.290 by root, Mon Jun 29 04:41:34 2009 UTC