ViewVC Help

View File | Revision Log | Show Annotations | Download File

/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 1.288 by root, Sat Apr 25 14:12:48 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	# endif
		63
52	# if HAVE_CLOCK_GETTIME	64	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	65	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	66	# define EV_USE_MONOTONIC 1
55	# endif	67	# endif
56	# ifndef EV_USE_REALTIME	68	# ifndef EV_USE_REALTIME
57	# define EV_USE_REALTIME 1	69	# define EV_USE_REALTIME 0
58	# endif	70	# endif
59	# else	71	# else
60	# ifndef EV_USE_MONOTONIC	72	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 0	73	# define EV_USE_MONOTONIC 0
62	# endif	74	# endif
…		…
126	# define EV_USE_EVENTFD 1	138	# define EV_USE_EVENTFD 1
127	# else	139	# else
128	# define EV_USE_EVENTFD 0	140	# define EV_USE_EVENTFD 0
129	# endif	141	# endif
130	# endif	142	# endif
131		143
132	#endif	144	#endif
133		145
134	#include <math.h>	146	#include <math.h>
135	#include <stdlib.h>	147	#include <stdlib.h>
136	#include <fcntl.h>	148	#include <fcntl.h>
…		…
154	#ifndef _WIN32	166	#ifndef _WIN32
155	# include <sys/time.h>	167	# include <sys/time.h>
156	# include <sys/wait.h>	168	# include <sys/wait.h>
157	# include <unistd.h>	169	# include <unistd.h>
158	#else	170	#else
		171	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	172	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	173	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	174	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	175	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	176	# endif
164	#endif	177	#endif
165		178
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	179	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		180
		181	#ifndef EV_USE_CLOCK_SYSCALL
		182	# if __linux && __GLIBC__ >= 2
		183	# define EV_USE_CLOCK_SYSCALL 1
		184	# else
		185	# define EV_USE_CLOCK_SYSCALL 0
		186	# endif
		187	#endif
		188
168	#ifndef EV_USE_MONOTONIC	189	#ifndef EV_USE_MONOTONIC
		190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		191	# define EV_USE_MONOTONIC 1
		192	# else
169	# define EV_USE_MONOTONIC 0	193	# define EV_USE_MONOTONIC 0
		194	# endif
170	#endif	195	#endif
171		196
172	#ifndef EV_USE_REALTIME	197	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	198	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174	#endif	199	#endif
175		200
176	#ifndef EV_USE_NANOSLEEP	201	#ifndef EV_USE_NANOSLEEP
		202	# if _POSIX_C_SOURCE >= 199309L
		203	# define EV_USE_NANOSLEEP 1
		204	# else
177	# define EV_USE_NANOSLEEP 0	205	# define EV_USE_NANOSLEEP 0
		206	# endif
178	#endif	207	#endif
179		208
180	#ifndef EV_USE_SELECT	209	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	210	# define EV_USE_SELECT 1
182	#endif	211	#endif
…		…
236	# define EV_USE_EVENTFD 0	265	# define EV_USE_EVENTFD 0
237	# endif	266	# endif
238	#endif	267	#endif
239		268
240	#if 0 /* debugging */	269	#if 0 /* debugging */
241	# define EV_VERIFY 1	270	# define EV_VERIFY 3
242	# define EV_USE_4HEAP 1	271	# define EV_USE_4HEAP 1
243	# define EV_HEAP_CACHE_AT 1	272	# define EV_HEAP_CACHE_AT 1
		273	#endif
		274
		275	#ifndef EV_VERIFY
		276	# define EV_VERIFY !EV_MINIMAL
244	#endif	277	#endif
245		278
246	#ifndef EV_USE_4HEAP	279	#ifndef EV_USE_4HEAP
247	# define EV_USE_4HEAP !EV_MINIMAL	280	# define EV_USE_4HEAP !EV_MINIMAL
248	#endif	281	#endif
…		…
273	# include <sys/select.h>	306	# include <sys/select.h>
274	# endif	307	# endif
275	#endif	308	#endif
276		309
277	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
278	# include <sys/inotify.h>	313	# include <sys/inotify.h>
		314	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		315	# ifndef IN_DONT_FOLLOW
		316	# undef EV_USE_INOTIFY
		317	# define EV_USE_INOTIFY 0
		318	# endif
279	#endif	319	#endif
280		320
281	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
282	# include <winsock.h>	322	# include <winsock.h>
		323	#endif
		324
		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
283	#endif	332	#endif
284		333
285	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
286	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
287	# include <stdint.h>	336	# include <stdint.h>
…		…
294	# endif	343	# endif
295	#endif	344	#endif
296		345
297	/**/	346	/**/
298		347
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	348	#if EV_VERIFY >= 3
305	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
306	#else	350	#else
307	# define EV_FREQUENT_CHECK do { } while (0)	351	# define EV_FREQUENT_CHECK do { } while (0)
308	#endif	352	#endif
309		353
…		…
353	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
354		398
355	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
356	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
357		401
358	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
359	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	403	/* 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 */	404	/* giving it a reasonably high chance of working on typical architetcures */
		405	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		406	#endif
		407
		408	#if EV_USE_MONOTONIC
361	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
362	#endif	410	#endif
363		411
364	#ifdef _WIN32	412	#ifdef _WIN32
365	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
374	{	422	{
375	syserr_cb = cb;	423	syserr_cb = cb;
376	}	424	}
377		425
378	static void noinline	426	static void noinline
379	syserr (const char *msg)	427	ev_syserr (const char *msg)
380	{	428	{
381	if (!msg)	429	if (!msg)
382	msg = "(libev) system error";	430	msg = "(libev) system error";
383		431
384	if (syserr_cb)	432	if (syserr_cb)
…		…
430	#define ev_malloc(size) ev_realloc (0, (size))	478	#define ev_malloc(size) ev_realloc (0, (size))
431	#define ev_free(ptr) ev_realloc ((ptr), 0)	479	#define ev_free(ptr) ev_realloc ((ptr), 0)
432		480
433	/*****************************************************************************/	481	/*****************************************************************************/
434		482
		483	/* file descriptor info structure */
435	typedef struct	484	typedef struct
436	{	485	{
437	WL head;	486	WL head;
438	unsigned char events;	487	unsigned char events; /* the events watched for */
		488	unsigned char reify; /* flag set when this ANFD needs reification */
		489	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
439	unsigned char reify;	490	unsigned char unused;
		491	#if EV_USE_EPOLL
		492	unsigned int egen; /* generation counter to counter epoll bugs */
		493	#endif
440	#if EV_SELECT_IS_WINSOCKET	494	#if EV_SELECT_IS_WINSOCKET
441	SOCKET handle;	495	SOCKET handle;
442	#endif	496	#endif
443	} ANFD;	497	} ANFD;
444		498
		499	/* stores the pending event set for a given watcher */
445	typedef struct	500	typedef struct
446	{	501	{
447	W w;	502	W w;
448	int events;	503	int events; /* the pending event set for the given watcher */
449	} ANPENDING;	504	} ANPENDING;
450		505
451	#if EV_USE_INOTIFY	506	#if EV_USE_INOTIFY
452	/* hash table entry per inotify-id */	507	/* hash table entry per inotify-id */
453	typedef struct	508	typedef struct
…		…
456	} ANFS;	511	} ANFS;
457	#endif	512	#endif
458		513
459	/* Heap Entry */	514	/* Heap Entry */
460	#if EV_HEAP_CACHE_AT	515	#if EV_HEAP_CACHE_AT
		516	/* a heap element */
461	typedef struct {	517	typedef struct {
462	ev_tstamp at;	518	ev_tstamp at;
463	WT w;	519	WT w;
464	} ANHE;	520	} ANHE;
465		521
466	#define ANHE_w(he) (he).w /* access watcher, read-write */	522	#define ANHE_w(he) (he).w /* access watcher, read-write */
467	#define ANHE_at(he) (he).at /* access cached at, read-only */	523	#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 */	524	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
469	#else	525	#else
		526	/* a heap element */
470	typedef WT ANHE;	527	typedef WT ANHE;
471		528
472	#define ANHE_w(he) (he)	529	#define ANHE_w(he) (he)
473	#define ANHE_at(he) (he)->at	530	#define ANHE_at(he) (he)->at
474	#define ANHE_at_cache(he)	531	#define ANHE_at_cache(he)
…		…
504		561
505	ev_tstamp	562	ev_tstamp
506	ev_time (void)	563	ev_time (void)
507	{	564	{
508	#if EV_USE_REALTIME	565	#if EV_USE_REALTIME
		566	if (expect_true (have_realtime))
		567	{
509	struct timespec ts;	568	struct timespec ts;
510	clock_gettime (CLOCK_REALTIME, &ts);	569	clock_gettime (CLOCK_REALTIME, &ts);
511	return ts.tv_sec + ts.tv_nsec * 1e-9;	570	return ts.tv_sec + ts.tv_nsec * 1e-9;
512	#else	571	}
		572	#endif
		573
513	struct timeval tv;	574	struct timeval tv;
514	gettimeofday (&tv, 0);	575	gettimeofday (&tv, 0);
515	return tv.tv_sec + tv.tv_usec * 1e-6;	576	return tv.tv_sec + tv.tv_usec * 1e-6;
516	#endif
517	}	577	}
518		578
519	ev_tstamp inline_size	579	inline_size ev_tstamp
520	get_clock (void)	580	get_clock (void)
521	{	581	{
522	#if EV_USE_MONOTONIC	582	#if EV_USE_MONOTONIC
523	if (expect_true (have_monotonic))	583	if (expect_true (have_monotonic))
524	{	584	{
…		…
557	struct timeval tv;	617	struct timeval tv;
558		618
559	tv.tv_sec = (time_t)delay;	619	tv.tv_sec = (time_t)delay;
560	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	620	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
561		621
		622	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		623	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		624	/* by older ones */
562	select (0, 0, 0, 0, &tv);	625	select (0, 0, 0, 0, &tv);
563	#endif	626	#endif
564	}	627	}
565	}	628	}
566		629
567	/*****************************************************************************/	630	/*****************************************************************************/
568		631
569	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	632	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
570		633
571	int inline_size	634	/* find a suitable new size for the given array, */
		635	/* hopefully by rounding to a ncie-to-malloc size */
		636	inline_size int
572	array_nextsize (int elem, int cur, int cnt)	637	array_nextsize (int elem, int cur, int cnt)
573	{	638	{
574	int ncur = cur + 1;	639	int ncur = cur + 1;
575		640
576	do	641	do
…		…
593	array_realloc (int elem, void *base, int *cur, int cnt)	658	array_realloc (int elem, void *base, int *cur, int cnt)
594	{	659	{
595	*cur = array_nextsize (elem, *cur, cnt);	660	*cur = array_nextsize (elem, *cur, cnt);
596	return ev_realloc (base, elem * *cur);	661	return ev_realloc (base, elem * *cur);
597	}	662	}
		663
		664	#define array_init_zero(base,count) \
		665	memset ((void *)(base), 0, sizeof (*(base)) * (count))
598		666
599	#define array_needsize(type,base,cur,cnt,init) \	667	#define array_needsize(type,base,cur,cnt,init) \
600	if (expect_false ((cnt) > (cur))) \	668	if (expect_false ((cnt) > (cur))) \
601	{ \	669	{ \
602	int ocur_ = (cur); \	670	int ocur_ = (cur); \
…		…
614	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	682	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
615	}	683	}
616	#endif	684	#endif
617		685
618	#define array_free(stem, idx) \	686	#define array_free(stem, idx) \
619	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	687	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
620		688
621	/*****************************************************************************/	689	/*****************************************************************************/
		690
		691	/* dummy callback for pending events */
		692	static void noinline
		693	pendingcb (EV_P_ ev_prepare *w, int revents)
		694	{
		695	}
622		696
623	void noinline	697	void noinline
624	ev_feed_event (EV_P_ void *w, int revents)	698	ev_feed_event (EV_P_ void *w, int revents)
625	{	699	{
626	W w_ = (W)w;	700	W w_ = (W)w;
…		…
635	pendings [pri][w_->pending - 1].w = w_;	709	pendings [pri][w_->pending - 1].w = w_;
636	pendings [pri][w_->pending - 1].events = revents;	710	pendings [pri][w_->pending - 1].events = revents;
637	}	711	}
638	}	712	}
639		713
640	void inline_speed	714	inline_speed void
		715	feed_reverse (EV_P_ W w)
		716	{
		717	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		718	rfeeds [rfeedcnt++] = w;
		719	}
		720
		721	inline_size void
		722	feed_reverse_done (EV_P_ int revents)
		723	{
		724	do
		725	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		726	while (rfeedcnt);
		727	}
		728
		729	inline_speed void
641	queue_events (EV_P_ W *events, int eventcnt, int type)	730	queue_events (EV_P_ W *events, int eventcnt, int type)
642	{	731	{
643	int i;	732	int i;
644		733
645	for (i = 0; i < eventcnt; ++i)	734	for (i = 0; i < eventcnt; ++i)
646	ev_feed_event (EV_A_ events [i], type);	735	ev_feed_event (EV_A_ events [i], type);
647	}	736	}
648		737
649	/*****************************************************************************/	738	/*****************************************************************************/
650		739
651	void inline_size	740	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)	741	fd_event (EV_P_ int fd, int revents)
666	{	742	{
667	ANFD *anfd = anfds + fd;	743	ANFD *anfd = anfds + fd;
668	ev_io *w;	744	ev_io *w;
669		745
…		…
681	{	757	{
682	if (fd >= 0 && fd < anfdmax)	758	if (fd >= 0 && fd < anfdmax)
683	fd_event (EV_A_ fd, revents);	759	fd_event (EV_A_ fd, revents);
684	}	760	}
685		761
686	void inline_size	762	/* make sure the external fd watch events are in-sync */
		763	/* with the kernel/libev internal state */
		764	inline_size void
687	fd_reify (EV_P)	765	fd_reify (EV_P)
688	{	766	{
689	int i;	767	int i;
690		768
691	for (i = 0; i < fdchangecnt; ++i)	769	for (i = 0; i < fdchangecnt; ++i)
…		…
700	events |= (unsigned char)w->events;	778	events |= (unsigned char)w->events;
701		779
702	#if EV_SELECT_IS_WINSOCKET	780	#if EV_SELECT_IS_WINSOCKET
703	if (events)	781	if (events)
704	{	782	{
705	unsigned long argp;	783	unsigned long arg;
706	#ifdef EV_FD_TO_WIN32_HANDLE	784	#ifdef EV_FD_TO_WIN32_HANDLE
707	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	785	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
708	#else	786	#else
709	anfd->handle = _get_osfhandle (fd);	787	anfd->handle = _get_osfhandle (fd);
710	#endif	788	#endif
711	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	789	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
712	}	790	}
713	#endif	791	#endif
714		792
715	{	793	{
716	unsigned char o_events = anfd->events;	794	unsigned char o_events = anfd->events;
717	unsigned char o_reify = anfd->reify;	795	unsigned char o_reify = anfd->reify;
718		796
719	anfd->reify = 0;	797	anfd->reify = 0;
720	anfd->events = events;	798	anfd->events = events;
721		799
722	if (o_events != events || o_reify & EV_IOFDSET)	800	if (o_events != events || o_reify & EV__IOFDSET)
723	backend_modify (EV_A_ fd, o_events, events);	801	backend_modify (EV_A_ fd, o_events, events);
724	}	802	}
725	}	803	}
726		804
727	fdchangecnt = 0;	805	fdchangecnt = 0;
728	}	806	}
729		807
730	void inline_size	808	/* something about the given fd changed */
		809	inline_size void
731	fd_change (EV_P_ int fd, int flags)	810	fd_change (EV_P_ int fd, int flags)
732	{	811	{
733	unsigned char reify = anfds [fd].reify;	812	unsigned char reify = anfds [fd].reify;
734	anfds [fd].reify |= flags;	813	anfds [fd].reify |= flags;
735		814
…		…
739	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	818	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
740	fdchanges [fdchangecnt - 1] = fd;	819	fdchanges [fdchangecnt - 1] = fd;
741	}	820	}
742	}	821	}
743		822
744	void inline_speed	823	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		824	inline_speed void
745	fd_kill (EV_P_ int fd)	825	fd_kill (EV_P_ int fd)
746	{	826	{
747	ev_io *w;	827	ev_io *w;
748		828
749	while ((w = (ev_io *)anfds [fd].head))	829	while ((w = (ev_io *)anfds [fd].head))
…		…
751	ev_io_stop (EV_A_ w);	831	ev_io_stop (EV_A_ w);
752	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	832	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
753	}	833	}
754	}	834	}
755		835
756	int inline_size	836	/* check whether the given fd is atcually valid, for error recovery */
		837	inline_size int
757	fd_valid (int fd)	838	fd_valid (int fd)
758	{	839	{
759	#ifdef _WIN32	840	#ifdef _WIN32
760	return _get_osfhandle (fd) != -1;	841	return _get_osfhandle (fd) != -1;
761	#else	842	#else
…		…
769	{	850	{
770	int fd;	851	int fd;
771		852
772	for (fd = 0; fd < anfdmax; ++fd)	853	for (fd = 0; fd < anfdmax; ++fd)
773	if (anfds [fd].events)	854	if (anfds [fd].events)
774	if (!fd_valid (fd) == -1 && errno == EBADF)	855	if (!fd_valid (fd) && errno == EBADF)
775	fd_kill (EV_A_ fd);	856	fd_kill (EV_A_ fd);
776	}	857	}
777		858
778	/* called on ENOMEM in select/poll to kill some fds and retry */	859	/* called on ENOMEM in select/poll to kill some fds and retry */
779	static void noinline	860	static void noinline
…		…
797		878
798	for (fd = 0; fd < anfdmax; ++fd)	879	for (fd = 0; fd < anfdmax; ++fd)
799	if (anfds [fd].events)	880	if (anfds [fd].events)
800	{	881	{
801	anfds [fd].events = 0;	882	anfds [fd].events = 0;
		883	anfds [fd].emask = 0;
802	fd_change (EV_A_ fd, EV_IOFDSET | 1);	884	fd_change (EV_A_ fd, EV__IOFDSET | 1);
803	}	885	}
804	}	886	}
805		887
806	/*****************************************************************************/	888	/*****************************************************************************/
807		889
…		…
823	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	905	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
824	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	906	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
825	#define UPHEAP_DONE(p,k) ((p) == (k))	907	#define UPHEAP_DONE(p,k) ((p) == (k))
826		908
827	/* away from the root */	909	/* away from the root */
828	void inline_speed	910	inline_speed void
829	downheap (ANHE *heap, int N, int k)	911	downheap (ANHE *heap, int N, int k)
830	{	912	{
831	ANHE he = heap [k];	913	ANHE he = heap [k];
832	ANHE *E = heap + N + HEAP0;	914	ANHE *E = heap + N + HEAP0;
833		915
…		…
873	#define HEAP0 1	955	#define HEAP0 1
874	#define HPARENT(k) ((k) >> 1)	956	#define HPARENT(k) ((k) >> 1)
875	#define UPHEAP_DONE(p,k) (!(p))	957	#define UPHEAP_DONE(p,k) (!(p))
876		958
877	/* away from the root */	959	/* away from the root */
878	void inline_speed	960	inline_speed void
879	downheap (ANHE *heap, int N, int k)	961	downheap (ANHE *heap, int N, int k)
880	{	962	{
881	ANHE he = heap [k];	963	ANHE he = heap [k];
882		964
883	for (;;)	965	for (;;)
…		…
903	ev_active (ANHE_w (he)) = k;	985	ev_active (ANHE_w (he)) = k;
904	}	986	}
905	#endif	987	#endif
906		988
907	/* towards the root */	989	/* towards the root */
908	void inline_speed	990	inline_speed void
909	upheap (ANHE *heap, int k)	991	upheap (ANHE *heap, int k)
910	{	992	{
911	ANHE he = heap [k];	993	ANHE he = heap [k];
912		994
913	for (;;)	995	for (;;)
…		…
924		1006
925	heap [k] = he;	1007	heap [k] = he;
926	ev_active (ANHE_w (he)) = k;	1008	ev_active (ANHE_w (he)) = k;
927	}	1009	}
928		1010
929	void inline_size	1011	/* move an element suitably so it is in a correct place */
		1012	inline_size void
930	adjustheap (ANHE *heap, int N, int k)	1013	adjustheap (ANHE *heap, int N, int k)
931	{	1014	{
932	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1015	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
933	upheap (heap, k);	1016	upheap (heap, k);
934	else	1017	else
935	downheap (heap, N, k);	1018	downheap (heap, N, k);
936	}	1019	}
937		1020
938	/* rebuild the heap: this function is used only once and executed rarely */	1021	/* rebuild the heap: this function is used only once and executed rarely */
939	void inline_size	1022	inline_size void
940	reheap (ANHE *heap, int N)	1023	reheap (ANHE *heap, int N)
941	{	1024	{
942	int i;	1025	int i;
		1026
943	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1027	/* 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 */	1028	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
945	for (i = 0; i < N; ++i)	1029	for (i = 0; i < N; ++i)
946	upheap (heap, i + HEAP0);	1030	upheap (heap, i + HEAP0);
947	}	1031	}
948		1032
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	/*****************************************************************************/	1033	/*****************************************************************************/
965		1034
		1035	/* associate signal watchers to a signal signal */
966	typedef struct	1036	typedef struct
967	{	1037	{
968	WL head;	1038	WL head;
969	EV_ATOMIC_T gotsig;	1039	EV_ATOMIC_T gotsig;
970	} ANSIG;	1040	} ANSIG;
…		…
972	static ANSIG *signals;	1042	static ANSIG *signals;
973	static int signalmax;	1043	static int signalmax;
974		1044
975	static EV_ATOMIC_T gotsig;	1045	static EV_ATOMIC_T gotsig;
976		1046
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	/*****************************************************************************/	1047	/*****************************************************************************/
990		1048
991	void inline_speed	1049	/* used to prepare libev internal fd's */
		1050	/* this is not fork-safe */
		1051	inline_speed void
992	fd_intern (int fd)	1052	fd_intern (int fd)
993	{	1053	{
994	#ifdef _WIN32	1054	#ifdef _WIN32
995	int arg = 1;	1055	unsigned long arg = 1;
996	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1056	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
997	#else	1057	#else
998	fcntl (fd, F_SETFD, FD_CLOEXEC);	1058	fcntl (fd, F_SETFD, FD_CLOEXEC);
999	fcntl (fd, F_SETFL, O_NONBLOCK);	1059	fcntl (fd, F_SETFL, O_NONBLOCK);
1000	#endif	1060	#endif
1001	}	1061	}
1002		1062
1003	static void noinline	1063	static void noinline
1004	evpipe_init (EV_P)	1064	evpipe_init (EV_P)
1005	{	1065	{
1006	if (!ev_is_active (&pipeev))	1066	if (!ev_is_active (&pipe_w))
1007	{	1067	{
1008	#if EV_USE_EVENTFD	1068	#if EV_USE_EVENTFD
1009	if ((evfd = eventfd (0, 0)) >= 0)	1069	if ((evfd = eventfd (0, 0)) >= 0)
1010	{	1070	{
1011	evpipe [0] = -1;	1071	evpipe [0] = -1;
1012	fd_intern (evfd);	1072	fd_intern (evfd);
1013	ev_io_set (&pipeev, evfd, EV_READ);	1073	ev_io_set (&pipe_w, evfd, EV_READ);
1014	}	1074	}
1015	else	1075	else
1016	#endif	1076	#endif
1017	{	1077	{
1018	while (pipe (evpipe))	1078	while (pipe (evpipe))
1019	syserr ("(libev) error creating signal/async pipe");	1079	ev_syserr ("(libev) error creating signal/async pipe");
1020		1080
1021	fd_intern (evpipe [0]);	1081	fd_intern (evpipe [0]);
1022	fd_intern (evpipe [1]);	1082	fd_intern (evpipe [1]);
1023	ev_io_set (&pipeev, evpipe [0], EV_READ);	1083	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1024	}	1084	}
1025		1085
1026	ev_io_start (EV_A_ &pipeev);	1086	ev_io_start (EV_A_ &pipe_w);
1027	ev_unref (EV_A); /* watcher should not keep loop alive */	1087	ev_unref (EV_A); /* watcher should not keep loop alive */
1028	}	1088	}
1029	}	1089	}
1030		1090
1031	void inline_size	1091	inline_size void
1032	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1092	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1033	{	1093	{
1034	if (!*flag)	1094	if (!*flag)
1035	{	1095	{
1036	int old_errno = errno; /* save errno because write might clobber it */	1096	int old_errno = errno; /* save errno because write might clobber it */
…		…
1049		1109
1050	errno = old_errno;	1110	errno = old_errno;
1051	}	1111	}
1052	}	1112	}
1053		1113
		1114	/* called whenever the libev signal pipe */
		1115	/* got some events (signal, async) */
1054	static void	1116	static void
1055	pipecb (EV_P_ ev_io *iow, int revents)	1117	pipecb (EV_P_ ev_io *iow, int revents)
1056	{	1118	{
1057	#if EV_USE_EVENTFD	1119	#if EV_USE_EVENTFD
1058	if (evfd >= 0)	1120	if (evfd >= 0)
…		…
1114	ev_feed_signal_event (EV_P_ int signum)	1176	ev_feed_signal_event (EV_P_ int signum)
1115	{	1177	{
1116	WL w;	1178	WL w;
1117		1179
1118	#if EV_MULTIPLICITY	1180	#if EV_MULTIPLICITY
1119	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1181	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1120	#endif	1182	#endif
1121		1183
1122	--signum;	1184	--signum;
1123		1185
1124	if (signum < 0 || signum >= signalmax)	1186	if (signum < 0 || signum >= signalmax)
…		…
1140		1202
1141	#ifndef WIFCONTINUED	1203	#ifndef WIFCONTINUED
1142	# define WIFCONTINUED(status) 0	1204	# define WIFCONTINUED(status) 0
1143	#endif	1205	#endif
1144		1206
1145	void inline_speed	1207	/* handle a single child status event */
		1208	inline_speed void
1146	child_reap (EV_P_ int chain, int pid, int status)	1209	child_reap (EV_P_ int chain, int pid, int status)
1147	{	1210	{
1148	ev_child *w;	1211	ev_child *w;
1149	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1212	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1150		1213
…		…
1163		1226
1164	#ifndef WCONTINUED	1227	#ifndef WCONTINUED
1165	# define WCONTINUED 0	1228	# define WCONTINUED 0
1166	#endif	1229	#endif
1167		1230
		1231	/* called on sigchld etc., calls waitpid */
1168	static void	1232	static void
1169	childcb (EV_P_ ev_signal *sw, int revents)	1233	childcb (EV_P_ ev_signal *sw, int revents)
1170	{	1234	{
1171	int pid, status;	1235	int pid, status;
1172		1236
…		…
1253	/* kqueue is borked on everything but netbsd apparently */	1317	/* kqueue is borked on everything but netbsd apparently */
1254	/* it usually doesn't work correctly on anything but sockets and pipes */	1318	/* it usually doesn't work correctly on anything but sockets and pipes */
1255	flags &= ~EVBACKEND_KQUEUE;	1319	flags &= ~EVBACKEND_KQUEUE;
1256	#endif	1320	#endif
1257	#ifdef __APPLE__	1321	#ifdef __APPLE__
1258	// flags &= ~EVBACKEND_KQUEUE; for documentation	1322	/* only select works correctly on that "unix-certified" platform */
1259	flags &= ~EVBACKEND_POLL;	1323	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1324	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1260	#endif	1325	#endif
1261		1326
1262	return flags;	1327	return flags;
1263	}	1328	}
1264		1329
…		…
1296	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1361	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1297	{	1362	{
1298	timeout_blocktime = interval;	1363	timeout_blocktime = interval;
1299	}	1364	}
1300		1365
		1366	/* initialise a loop structure, must be zero-initialised */
1301	static void noinline	1367	static void noinline
1302	loop_init (EV_P_ unsigned int flags)	1368	loop_init (EV_P_ unsigned int flags)
1303	{	1369	{
1304	if (!backend)	1370	if (!backend)
1305	{	1371	{
		1372	#if EV_USE_REALTIME
		1373	if (!have_realtime)
		1374	{
		1375	struct timespec ts;
		1376
		1377	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1378	have_realtime = 1;
		1379	}
		1380	#endif
		1381
1306	#if EV_USE_MONOTONIC	1382	#if EV_USE_MONOTONIC
		1383	if (!have_monotonic)
1307	{	1384	{
1308	struct timespec ts;	1385	struct timespec ts;
		1386
1309	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1387	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1310	have_monotonic = 1;	1388	have_monotonic = 1;
1311	}	1389	}
1312	#endif	1390	#endif
1313		1391
1314	ev_rt_now = ev_time ();	1392	ev_rt_now = ev_time ();
1315	mn_now = get_clock ();	1393	mn_now = get_clock ();
1316	now_floor = mn_now;	1394	now_floor = mn_now;
…		…
1353	#endif	1431	#endif
1354	#if EV_USE_SELECT	1432	#if EV_USE_SELECT
1355	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1433	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1356	#endif	1434	#endif
1357		1435
		1436	ev_prepare_init (&pending_w, pendingcb);
		1437
1358	ev_init (&pipeev, pipecb);	1438	ev_init (&pipe_w, pipecb);
1359	ev_set_priority (&pipeev, EV_MAXPRI);	1439	ev_set_priority (&pipe_w, EV_MAXPRI);
1360	}	1440	}
1361	}	1441	}
1362		1442
		1443	/* free up a loop structure */
1363	static void noinline	1444	static void noinline
1364	loop_destroy (EV_P)	1445	loop_destroy (EV_P)
1365	{	1446	{
1366	int i;	1447	int i;
1367		1448
1368	if (ev_is_active (&pipeev))	1449	if (ev_is_active (&pipe_w))
1369	{	1450	{
1370	ev_ref (EV_A); /* signal watcher */	1451	ev_ref (EV_A); /* signal watcher */
1371	ev_io_stop (EV_A_ &pipeev);	1452	ev_io_stop (EV_A_ &pipe_w);
1372		1453
1373	#if EV_USE_EVENTFD	1454	#if EV_USE_EVENTFD
1374	if (evfd >= 0)	1455	if (evfd >= 0)
1375	close (evfd);	1456	close (evfd);
1376	#endif	1457	#endif
…		…
1415	}	1496	}
1416		1497
1417	ev_free (anfds); anfdmax = 0;	1498	ev_free (anfds); anfdmax = 0;
1418		1499
1419	/* have to use the microsoft-never-gets-it-right macro */	1500	/* have to use the microsoft-never-gets-it-right macro */
		1501	array_free (rfeed, EMPTY);
1420	array_free (fdchange, EMPTY);	1502	array_free (fdchange, EMPTY);
1421	array_free (timer, EMPTY);	1503	array_free (timer, EMPTY);
1422	#if EV_PERIODIC_ENABLE	1504	#if EV_PERIODIC_ENABLE
1423	array_free (periodic, EMPTY);	1505	array_free (periodic, EMPTY);
1424	#endif	1506	#endif
…		…
1433		1515
1434	backend = 0;	1516	backend = 0;
1435	}	1517	}
1436		1518
1437	#if EV_USE_INOTIFY	1519	#if EV_USE_INOTIFY
1438	void inline_size infy_fork (EV_P);	1520	inline_size void infy_fork (EV_P);
1439	#endif	1521	#endif
1440		1522
1441	void inline_size	1523	inline_size void
1442	loop_fork (EV_P)	1524	loop_fork (EV_P)
1443	{	1525	{
1444	#if EV_USE_PORT	1526	#if EV_USE_PORT
1445	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1527	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1446	#endif	1528	#endif
…		…
1452	#endif	1534	#endif
1453	#if EV_USE_INOTIFY	1535	#if EV_USE_INOTIFY
1454	infy_fork (EV_A);	1536	infy_fork (EV_A);
1455	#endif	1537	#endif
1456		1538
1457	if (ev_is_active (&pipeev))	1539	if (ev_is_active (&pipe_w))
1458	{	1540	{
1459	/* this "locks" the handlers against writing to the pipe */	1541	/* this "locks" the handlers against writing to the pipe */
1460	/* while we modify the fd vars */	1542	/* while we modify the fd vars */
1461	gotsig = 1;	1543	gotsig = 1;
1462	#if EV_ASYNC_ENABLE	1544	#if EV_ASYNC_ENABLE
1463	gotasync = 1;	1545	gotasync = 1;
1464	#endif	1546	#endif
1465		1547
1466	ev_ref (EV_A);	1548	ev_ref (EV_A);
1467	ev_io_stop (EV_A_ &pipeev);	1549	ev_io_stop (EV_A_ &pipe_w);
1468		1550
1469	#if EV_USE_EVENTFD	1551	#if EV_USE_EVENTFD
1470	if (evfd >= 0)	1552	if (evfd >= 0)
1471	close (evfd);	1553	close (evfd);
1472	#endif	1554	#endif
…		…
1477	close (evpipe [1]);	1559	close (evpipe [1]);
1478	}	1560	}
1479		1561
1480	evpipe_init (EV_A);	1562	evpipe_init (EV_A);
1481	/* now iterate over everything, in case we missed something */	1563	/* now iterate over everything, in case we missed something */
1482	pipecb (EV_A_ &pipeev, EV_READ);	1564	pipecb (EV_A_ &pipe_w, EV_READ);
1483	}	1565	}
1484		1566
1485	postfork = 0;	1567	postfork = 0;
1486	}	1568	}
1487		1569
1488	#if EV_MULTIPLICITY	1570	#if EV_MULTIPLICITY
		1571
1489	struct ev_loop *	1572	struct ev_loop *
1490	ev_loop_new (unsigned int flags)	1573	ev_loop_new (unsigned int flags)
1491	{	1574	{
1492	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1575	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1493		1576
…		…
1513	{	1596	{
1514	postfork = 1; /* must be in line with ev_default_fork */	1597	postfork = 1; /* must be in line with ev_default_fork */
1515	}	1598	}
1516		1599
1517	#if EV_VERIFY	1600	#if EV_VERIFY
1518	static void	1601	static void noinline
		1602	verify_watcher (EV_P_ W w)
		1603	{
		1604	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1605
		1606	if (w->pending)
		1607	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1608	}
		1609
		1610	static void noinline
		1611	verify_heap (EV_P_ ANHE *heap, int N)
		1612	{
		1613	int i;
		1614
		1615	for (i = HEAP0; i < N + HEAP0; ++i)
		1616	{
		1617	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1618	assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1619	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1620
		1621	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1622	}
		1623	}
		1624
		1625	static void noinline
1519	array_check (W **ws, int cnt)	1626	array_verify (EV_P_ W *ws, int cnt)
1520	{	1627	{
1521	while (cnt--)	1628	while (cnt--)
		1629	{
1522	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1630	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1631	verify_watcher (EV_A_ ws [cnt]);
		1632	}
1523	}	1633	}
		1634	#endif
1524		1635
1525	static void	1636	void
1526	ev_loop_verify (EV_P)	1637	ev_loop_verify (EV_P)
1527	{	1638	{
		1639	#if EV_VERIFY
1528	int i;	1640	int i;
		1641	WL w;
1529		1642
		1643	assert (activecnt >= -1);
		1644
		1645	assert (fdchangemax >= fdchangecnt);
		1646	for (i = 0; i < fdchangecnt; ++i)
		1647	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
		1648
		1649	assert (anfdmax >= 0);
		1650	for (i = 0; i < anfdmax; ++i)
		1651	for (w = anfds [i].head; w; w = w->next)
		1652	{
		1653	verify_watcher (EV_A_ (W)w);
		1654	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
		1655	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1656	}
		1657
		1658	assert (timermax >= timercnt);
1530	checkheap (timers, timercnt);	1659	verify_heap (EV_A_ timers, timercnt);
		1660
1531	#if EV_PERIODIC_ENABLE	1661	#if EV_PERIODIC_ENABLE
		1662	assert (periodicmax >= periodiccnt);
1532	checkheap (periodics, periodiccnt);	1663	verify_heap (EV_A_ periodics, periodiccnt);
1533	#endif	1664	#endif
1534		1665
		1666	for (i = NUMPRI; i--; )
		1667	{
		1668	assert (pendingmax [i] >= pendingcnt [i]);
1535	#if EV_IDLE_ENABLE	1669	#if EV_IDLE_ENABLE
1536	for (i = NUMPRI; i--; )	1670	assert (idleall >= 0);
		1671	assert (idlemax [i] >= idlecnt [i]);
1537	array_check ((W **)idles [i], idlecnt [i]);	1672	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1538	#endif	1673	#endif
		1674	}
		1675
1539	#if EV_FORK_ENABLE	1676	#if EV_FORK_ENABLE
		1677	assert (forkmax >= forkcnt);
1540	array_check ((W **)forks, forkcnt);	1678	array_verify (EV_A_ (W *)forks, forkcnt);
1541	#endif	1679	#endif
1542	array_check ((W **)prepares, preparecnt);	1680
1543	array_check ((W **)checks, checkcnt);
1544	#if EV_ASYNC_ENABLE	1681	#if EV_ASYNC_ENABLE
		1682	assert (asyncmax >= asynccnt);
1545	array_check ((W **)asyncs, asynccnt);	1683	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1684	#endif
		1685
		1686	assert (preparemax >= preparecnt);
		1687	array_verify (EV_A_ (W *)prepares, preparecnt);
		1688
		1689	assert (checkmax >= checkcnt);
		1690	array_verify (EV_A_ (W *)checks, checkcnt);
		1691
		1692	# if 0
		1693	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1694	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1546	#endif	1695	# endif
1547	}
1548	#endif	1696	#endif
		1697	}
1549		1698
1550	#endif	1699	#endif /* multiplicity */
1551		1700
1552	#if EV_MULTIPLICITY	1701	#if EV_MULTIPLICITY
1553	struct ev_loop *	1702	struct ev_loop *
1554	ev_default_loop_init (unsigned int flags)	1703	ev_default_loop_init (unsigned int flags)
1555	#else	1704	#else
…		…
1588	{	1737	{
1589	#if EV_MULTIPLICITY	1738	#if EV_MULTIPLICITY
1590	struct ev_loop *loop = ev_default_loop_ptr;	1739	struct ev_loop *loop = ev_default_loop_ptr;
1591	#endif	1740	#endif
1592		1741
		1742	ev_default_loop_ptr = 0;
		1743
1593	#ifndef _WIN32	1744	#ifndef _WIN32
1594	ev_ref (EV_A); /* child watcher */	1745	ev_ref (EV_A); /* child watcher */
1595	ev_signal_stop (EV_A_ &childev);	1746	ev_signal_stop (EV_A_ &childev);
1596	#endif	1747	#endif
1597		1748
…		…
1603	{	1754	{
1604	#if EV_MULTIPLICITY	1755	#if EV_MULTIPLICITY
1605	struct ev_loop *loop = ev_default_loop_ptr;	1756	struct ev_loop *loop = ev_default_loop_ptr;
1606	#endif	1757	#endif
1607		1758
1608	if (backend)
1609	postfork = 1; /* must be in line with ev_loop_fork */	1759	postfork = 1; /* must be in line with ev_loop_fork */
1610	}	1760	}
1611		1761
1612	/*****************************************************************************/	1762	/*****************************************************************************/
1613		1763
1614	void	1764	void
1615	ev_invoke (EV_P_ void *w, int revents)	1765	ev_invoke (EV_P_ void *w, int revents)
1616	{	1766	{
1617	EV_CB_INVOKE ((W)w, revents);	1767	EV_CB_INVOKE ((W)w, revents);
1618	}	1768	}
1619		1769
1620	void inline_speed	1770	inline_speed void
1621	call_pending (EV_P)	1771	call_pending (EV_P)
1622	{	1772	{
1623	int pri;	1773	int pri;
1624
1625	EV_FREQUENT_CHECK;
1626		1774
1627	for (pri = NUMPRI; pri--; )	1775	for (pri = NUMPRI; pri--; )
1628	while (pendingcnt [pri])	1776	while (pendingcnt [pri])
1629	{	1777	{
1630	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1778	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1631		1779
1632	if (expect_true (p->w))
1633	{
1634	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1780	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1781	/* ^ this is no longer true, as pending_w could be here */
1635		1782
1636	p->w->pending = 0;	1783	p->w->pending = 0;
1637	EV_CB_INVOKE (p->w, p->events);	1784	EV_CB_INVOKE (p->w, p->events);
1638	}	1785	EV_FREQUENT_CHECK;
1639	}	1786	}
1640
1641	EV_FREQUENT_CHECK;
1642	}	1787	}
1643		1788
1644	#if EV_IDLE_ENABLE	1789	#if EV_IDLE_ENABLE
1645	void inline_size	1790	/* make idle watchers pending. this handles the "call-idle */
		1791	/* only when higher priorities are idle" logic */
		1792	inline_size void
1646	idle_reify (EV_P)	1793	idle_reify (EV_P)
1647	{	1794	{
1648	if (expect_false (idleall))	1795	if (expect_false (idleall))
1649	{	1796	{
1650	int pri;	1797	int pri;
…		…
1662	}	1809	}
1663	}	1810	}
1664	}	1811	}
1665	#endif	1812	#endif
1666		1813
1667	void inline_size	1814	/* make timers pending */
		1815	inline_size void
1668	timers_reify (EV_P)	1816	timers_reify (EV_P)
1669	{	1817	{
1670	EV_FREQUENT_CHECK;	1818	EV_FREQUENT_CHECK;
1671		1819
1672	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1820	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1673	{	1821	{
1674	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1822	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	{	1823	{
		1824	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1825
		1826	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		1827
		1828	/* first reschedule or stop timer */
		1829	if (w->repeat)
		1830	{
1681	ev_at (w) += w->repeat;	1831	ev_at (w) += w->repeat;
1682	if (ev_at (w) < mn_now)	1832	if (ev_at (w) < mn_now)
1683	ev_at (w) = mn_now;	1833	ev_at (w) = mn_now;
1684		1834
1685	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1835	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1686		1836
1687	ANHE_at_cache (timers [HEAP0]);	1837	ANHE_at_cache (timers [HEAP0]);
1688	downheap (timers, timercnt, HEAP0);	1838	downheap (timers, timercnt, HEAP0);
		1839	}
		1840	else
		1841	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1842
		1843	EV_FREQUENT_CHECK;
		1844	feed_reverse (EV_A_ (W)w);
1689	}	1845	}
1690	else	1846	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1691	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1692		1847
1693	EV_FREQUENT_CHECK;
1694	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1848	feed_reverse_done (EV_A_ EV_TIMEOUT);
1695	}	1849	}
1696	}	1850	}
1697		1851
1698	#if EV_PERIODIC_ENABLE	1852	#if EV_PERIODIC_ENABLE
1699	void inline_size	1853	/* make periodics pending */
		1854	inline_size void
1700	periodics_reify (EV_P)	1855	periodics_reify (EV_P)
1701	{	1856	{
1702	EV_FREQUENT_CHECK;	1857	EV_FREQUENT_CHECK;
		1858
1703	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1859	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1704	{	1860	{
1705	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1861	int feed_count = 0;
1706		1862
1707	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1863	do
1708
1709	/* first reschedule or stop timer */
1710	if (w->reschedule_cb)
1711	{	1864	{
		1865	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1866
		1867	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		1868
		1869	/* first reschedule or stop timer */
		1870	if (w->reschedule_cb)
		1871	{
1712	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1872	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1713		1873
1714	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1874	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1715		1875
1716	ANHE_at_cache (periodics [HEAP0]);	1876	ANHE_at_cache (periodics [HEAP0]);
1717	downheap (periodics, periodiccnt, HEAP0);	1877	downheap (periodics, periodiccnt, HEAP0);
		1878	}
		1879	else if (w->interval)
		1880	{
		1881	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1882	/* if next trigger time is not sufficiently in the future, put it there */
		1883	/* this might happen because of floating point inexactness */
		1884	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1885	{
		1886	ev_at (w) += w->interval;
		1887
		1888	/* if interval is unreasonably low we might still have a time in the past */
		1889	/* so correct this. this will make the periodic very inexact, but the user */
		1890	/* has effectively asked to get triggered more often than possible */
		1891	if (ev_at (w) < ev_rt_now)
		1892	ev_at (w) = ev_rt_now;
		1893	}
		1894
		1895	ANHE_at_cache (periodics [HEAP0]);
		1896	downheap (periodics, periodiccnt, HEAP0);
		1897	}
		1898	else
		1899	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1900
1718	EV_FREQUENT_CHECK;	1901	EV_FREQUENT_CHECK;
		1902	feed_reverse (EV_A_ (W)w);
1719	}	1903	}
1720	else if (w->interval)	1904	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		1905
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);	1906	feed_reverse_done (EV_A_ EV_PERIODIC);
1744	}	1907	}
1745	}	1908	}
1746		1909
		1910	/* simply recalculate all periodics */
		1911	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1747	static void noinline	1912	static void noinline
1748	periodics_reschedule (EV_P)	1913	periodics_reschedule (EV_P)
1749	{	1914	{
1750	int i;	1915	int i;
1751		1916
…		…
1764		1929
1765	reheap (periodics, periodiccnt);	1930	reheap (periodics, periodiccnt);
1766	}	1931	}
1767	#endif	1932	#endif
1768		1933
1769	void inline_speed	1934	/* adjust all timers by a given offset */
		1935	static void noinline
		1936	timers_reschedule (EV_P_ ev_tstamp adjust)
		1937	{
		1938	int i;
		1939
		1940	for (i = 0; i < timercnt; ++i)
		1941	{
		1942	ANHE *he = timers + i + HEAP0;
		1943	ANHE_w (*he)->at += adjust;
		1944	ANHE_at_cache (*he);
		1945	}
		1946	}
		1947
		1948	/* fetch new monotonic and realtime times from the kernel */
		1949	/* also detetc if there was a timejump, and act accordingly */
		1950	inline_speed void
1770	time_update (EV_P_ ev_tstamp max_block)	1951	time_update (EV_P_ ev_tstamp max_block)
1771	{	1952	{
1772	int i;	1953	int i;
1773		1954
1774	#if EV_USE_MONOTONIC	1955	#if EV_USE_MONOTONIC
…		…
1807	ev_rt_now = ev_time ();	1988	ev_rt_now = ev_time ();
1808	mn_now = get_clock ();	1989	mn_now = get_clock ();
1809	now_floor = mn_now;	1990	now_floor = mn_now;
1810	}	1991	}
1811		1992
		1993	/* no timer adjustment, as the monotonic clock doesn't jump */
		1994	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1812	# if EV_PERIODIC_ENABLE	1995	# if EV_PERIODIC_ENABLE
1813	periodics_reschedule (EV_A);	1996	periodics_reschedule (EV_A);
1814	# endif	1997	# endif
1815	/* no timer adjustment, as the monotonic clock doesn't jump */
1816	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1817	}	1998	}
1818	else	1999	else
1819	#endif	2000	#endif
1820	{	2001	{
1821	ev_rt_now = ev_time ();	2002	ev_rt_now = ev_time ();
1822		2003
1823	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2004	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1824	{	2005	{
		2006	/* adjust timers. this is easy, as the offset is the same for all of them */
		2007	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1825	#if EV_PERIODIC_ENABLE	2008	#if EV_PERIODIC_ENABLE
1826	periodics_reschedule (EV_A);	2009	periodics_reschedule (EV_A);
1827	#endif	2010	#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	}	2011	}
1836		2012
1837	mn_now = ev_rt_now;	2013	mn_now = ev_rt_now;
1838	}	2014	}
1839	}	2015	}
1840		2016
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;	2017	static int loop_done;
1854		2018
1855	void	2019	void
1856	ev_loop (EV_P_ int flags)	2020	ev_loop (EV_P_ int flags)
1857	{	2021	{
…		…
1859		2023
1860	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2024	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1861		2025
1862	do	2026	do
1863	{	2027	{
		2028	#if EV_VERIFY >= 2
		2029	ev_loop_verify (EV_A);
		2030	#endif
		2031
1864	#ifndef _WIN32	2032	#ifndef _WIN32
1865	if (expect_false (curpid)) /* penalise the forking check even more */	2033	if (expect_false (curpid)) /* penalise the forking check even more */
1866	if (expect_false (getpid () != curpid))	2034	if (expect_false (getpid () != curpid))
1867	{	2035	{
1868	curpid = getpid ();	2036	curpid = getpid ();
…		…
1885	{	2053	{
1886	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2054	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1887	call_pending (EV_A);	2055	call_pending (EV_A);
1888	}	2056	}
1889		2057
1890	if (expect_false (!activecnt))
1891	break;
1892
1893	/* we might have forked, so reify kernel state if necessary */	2058	/* we might have forked, so reify kernel state if necessary */
1894	if (expect_false (postfork))	2059	if (expect_false (postfork))
1895	loop_fork (EV_A);	2060	loop_fork (EV_A);
1896		2061
1897	/* update fd-related kernel structures */	2062	/* update fd-related kernel structures */
…		…
1976	ev_unloop (EV_P_ int how)	2141	ev_unloop (EV_P_ int how)
1977	{	2142	{
1978	loop_done = how;	2143	loop_done = how;
1979	}	2144	}
1980		2145
		2146	void
		2147	ev_ref (EV_P)
		2148	{
		2149	++activecnt;
		2150	}
		2151
		2152	void
		2153	ev_unref (EV_P)
		2154	{
		2155	--activecnt;
		2156	}
		2157
		2158	void
		2159	ev_now_update (EV_P)
		2160	{
		2161	time_update (EV_A_ 1e100);
		2162	}
		2163
		2164	void
		2165	ev_suspend (EV_P)
		2166	{
		2167	ev_now_update (EV_A);
		2168	}
		2169
		2170	void
		2171	ev_resume (EV_P)
		2172	{
		2173	ev_tstamp mn_prev = mn_now;
		2174
		2175	ev_now_update (EV_A);
		2176	timers_reschedule (EV_A_ mn_now - mn_prev);
		2177	#if EV_PERIODIC_ENABLE
		2178	/* TODO: really do this? */
		2179	periodics_reschedule (EV_A);
		2180	#endif
		2181	}
		2182
1981	/*****************************************************************************/	2183	/*****************************************************************************/
		2184	/* singly-linked list management, used when the expected list length is short */
1982		2185
1983	void inline_size	2186	inline_size void
1984	wlist_add (WL *head, WL elem)	2187	wlist_add (WL *head, WL elem)
1985	{	2188	{
1986	elem->next = *head;	2189	elem->next = *head;
1987	*head = elem;	2190	*head = elem;
1988	}	2191	}
1989		2192
1990	void inline_size	2193	inline_size void
1991	wlist_del (WL *head, WL elem)	2194	wlist_del (WL *head, WL elem)
1992	{	2195	{
1993	while (*head)	2196	while (*head)
1994	{	2197	{
1995	if (*head == elem)	2198	if (*head == elem)
…		…
2000		2203
2001	head = &(*head)->next;	2204	head = &(*head)->next;
2002	}	2205	}
2003	}	2206	}
2004		2207
2005	void inline_speed	2208	/* internal, faster, version of ev_clear_pending */
		2209	inline_speed void
2006	clear_pending (EV_P_ W w)	2210	clear_pending (EV_P_ W w)
2007	{	2211	{
2008	if (w->pending)	2212	if (w->pending)
2009	{	2213	{
2010	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2214	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2011	w->pending = 0;	2215	w->pending = 0;
2012	}	2216	}
2013	}	2217	}
2014		2218
2015	int	2219	int
…		…
2019	int pending = w_->pending;	2223	int pending = w_->pending;
2020		2224
2021	if (expect_true (pending))	2225	if (expect_true (pending))
2022	{	2226	{
2023	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2227	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2228	p->w = (W)&pending_w;
2024	w_->pending = 0;	2229	w_->pending = 0;
2025	p->w = 0;
2026	return p->events;	2230	return p->events;
2027	}	2231	}
2028	else	2232	else
2029	return 0;	2233	return 0;
2030	}	2234	}
2031		2235
2032	void inline_size	2236	inline_size void
2033	pri_adjust (EV_P_ W w)	2237	pri_adjust (EV_P_ W w)
2034	{	2238	{
2035	int pri = w->priority;	2239	int pri = w->priority;
2036	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2240	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2037	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2241	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2038	w->priority = pri;	2242	w->priority = pri;
2039	}	2243	}
2040		2244
2041	void inline_speed	2245	inline_speed void
2042	ev_start (EV_P_ W w, int active)	2246	ev_start (EV_P_ W w, int active)
2043	{	2247	{
2044	pri_adjust (EV_A_ w);	2248	pri_adjust (EV_A_ w);
2045	w->active = active;	2249	w->active = active;
2046	ev_ref (EV_A);	2250	ev_ref (EV_A);
2047	}	2251	}
2048		2252
2049	void inline_size	2253	inline_size void
2050	ev_stop (EV_P_ W w)	2254	ev_stop (EV_P_ W w)
2051	{	2255	{
2052	ev_unref (EV_A);	2256	ev_unref (EV_A);
2053	w->active = 0;	2257	w->active = 0;
2054	}	2258	}
…		…
2061	int fd = w->fd;	2265	int fd = w->fd;
2062		2266
2063	if (expect_false (ev_is_active (w)))	2267	if (expect_false (ev_is_active (w)))
2064	return;	2268	return;
2065		2269
2066	assert (("ev_io_start called with negative fd", fd >= 0));	2270	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2271	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2067		2272
2068	EV_FREQUENT_CHECK;	2273	EV_FREQUENT_CHECK;
2069		2274
2070	ev_start (EV_A_ (W)w, 1);	2275	ev_start (EV_A_ (W)w, 1);
2071	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2276	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2072	wlist_add (&anfds[fd].head, (WL)w);	2277	wlist_add (&anfds[fd].head, (WL)w);
2073		2278
2074	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2279	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);
2075	w->events &= ~EV_IOFDSET;	2280	w->events &= ~EV__IOFDSET;
2076		2281
2077	EV_FREQUENT_CHECK;	2282	EV_FREQUENT_CHECK;
2078	}	2283	}
2079		2284
2080	void noinline	2285	void noinline
…		…
2082	{	2287	{
2083	clear_pending (EV_A_ (W)w);	2288	clear_pending (EV_A_ (W)w);
2084	if (expect_false (!ev_is_active (w)))	2289	if (expect_false (!ev_is_active (w)))
2085	return;	2290	return;
2086		2291
2087	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2292	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2088		2293
2089	EV_FREQUENT_CHECK;	2294	EV_FREQUENT_CHECK;
2090		2295
2091	wlist_del (&anfds[w->fd].head, (WL)w);	2296	wlist_del (&anfds[w->fd].head, (WL)w);
2092	ev_stop (EV_A_ (W)w);	2297	ev_stop (EV_A_ (W)w);
…		…
2102	if (expect_false (ev_is_active (w)))	2307	if (expect_false (ev_is_active (w)))
2103	return;	2308	return;
2104		2309
2105	ev_at (w) += mn_now;	2310	ev_at (w) += mn_now;
2106		2311
2107	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2312	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2108		2313
2109	EV_FREQUENT_CHECK;	2314	EV_FREQUENT_CHECK;
2110		2315
2111	++timercnt;	2316	++timercnt;
2112	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2317	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2115	ANHE_at_cache (timers [ev_active (w)]);	2320	ANHE_at_cache (timers [ev_active (w)]);
2116	upheap (timers, ev_active (w));	2321	upheap (timers, ev_active (w));
2117		2322
2118	EV_FREQUENT_CHECK;	2323	EV_FREQUENT_CHECK;
2119		2324
2120	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2325	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2121	}	2326	}
2122		2327
2123	void noinline	2328	void noinline
2124	ev_timer_stop (EV_P_ ev_timer *w)	2329	ev_timer_stop (EV_P_ ev_timer *w)
2125	{	2330	{
…		…
2130	EV_FREQUENT_CHECK;	2335	EV_FREQUENT_CHECK;
2131		2336
2132	{	2337	{
2133	int active = ev_active (w);	2338	int active = ev_active (w);
2134		2339
2135	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2340	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2136		2341
2137	--timercnt;	2342	--timercnt;
2138		2343
2139	if (expect_true (active < timercnt + HEAP0))	2344	if (expect_true (active < timercnt + HEAP0))
2140	{	2345	{
…		…
2184		2389
2185	if (w->reschedule_cb)	2390	if (w->reschedule_cb)
2186	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2391	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2187	else if (w->interval)	2392	else if (w->interval)
2188	{	2393	{
2189	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2394	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 */	2395	/* 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;	2396	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2192	}	2397	}
2193	else	2398	else
2194	ev_at (w) = w->offset;	2399	ev_at (w) = w->offset;
…		…
2202	ANHE_at_cache (periodics [ev_active (w)]);	2407	ANHE_at_cache (periodics [ev_active (w)]);
2203	upheap (periodics, ev_active (w));	2408	upheap (periodics, ev_active (w));
2204		2409
2205	EV_FREQUENT_CHECK;	2410	EV_FREQUENT_CHECK;
2206		2411
2207	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2412	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2208	}	2413	}
2209		2414
2210	void noinline	2415	void noinline
2211	ev_periodic_stop (EV_P_ ev_periodic *w)	2416	ev_periodic_stop (EV_P_ ev_periodic *w)
2212	{	2417	{
…		…
2217	EV_FREQUENT_CHECK;	2422	EV_FREQUENT_CHECK;
2218		2423
2219	{	2424	{
2220	int active = ev_active (w);	2425	int active = ev_active (w);
2221		2426
2222	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2427	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2223		2428
2224	--periodiccnt;	2429	--periodiccnt;
2225		2430
2226	if (expect_true (active < periodiccnt + HEAP0))	2431	if (expect_true (active < periodiccnt + HEAP0))
2227	{	2432	{
…		…
2250		2455
2251	void noinline	2456	void noinline
2252	ev_signal_start (EV_P_ ev_signal *w)	2457	ev_signal_start (EV_P_ ev_signal *w)
2253	{	2458	{
2254	#if EV_MULTIPLICITY	2459	#if EV_MULTIPLICITY
2255	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2460	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2256	#endif	2461	#endif
2257	if (expect_false (ev_is_active (w)))	2462	if (expect_false (ev_is_active (w)))
2258	return;	2463	return;
2259		2464
2260	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2465	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2261		2466
2262	evpipe_init (EV_A);	2467	evpipe_init (EV_A);
2263		2468
2264	EV_FREQUENT_CHECK;	2469	EV_FREQUENT_CHECK;
2265		2470
…		…
2268	sigset_t full, prev;	2473	sigset_t full, prev;
2269	sigfillset (&full);	2474	sigfillset (&full);
2270	sigprocmask (SIG_SETMASK, &full, &prev);	2475	sigprocmask (SIG_SETMASK, &full, &prev);
2271	#endif	2476	#endif
2272		2477
2273	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2478	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2274		2479
2275	#ifndef _WIN32	2480	#ifndef _WIN32
2276	sigprocmask (SIG_SETMASK, &prev, 0);	2481	sigprocmask (SIG_SETMASK, &prev, 0);
2277	#endif	2482	#endif
2278	}	2483	}
…		…
2316		2521
2317	void	2522	void
2318	ev_child_start (EV_P_ ev_child *w)	2523	ev_child_start (EV_P_ ev_child *w)
2319	{	2524	{
2320	#if EV_MULTIPLICITY	2525	#if EV_MULTIPLICITY
2321	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2526	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2322	#endif	2527	#endif
2323	if (expect_false (ev_is_active (w)))	2528	if (expect_false (ev_is_active (w)))
2324	return;	2529	return;
2325		2530
2326	EV_FREQUENT_CHECK;	2531	EV_FREQUENT_CHECK;
…		…
2351	# ifdef _WIN32	2556	# ifdef _WIN32
2352	# undef lstat	2557	# undef lstat
2353	# define lstat(a,b) _stati64 (a,b)	2558	# define lstat(a,b) _stati64 (a,b)
2354	# endif	2559	# endif
2355		2560
2356	#define DEF_STAT_INTERVAL 5.0074891	2561	#define DEF_STAT_INTERVAL 5.0074891
		2562	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2357	#define MIN_STAT_INTERVAL 0.1074891	2563	#define MIN_STAT_INTERVAL 0.1074891
2358		2564
2359	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2565	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2360		2566
2361	#if EV_USE_INOTIFY	2567	#if EV_USE_INOTIFY
2362	# define EV_INOTIFY_BUFSIZE 8192	2568	# define EV_INOTIFY_BUFSIZE 8192
…		…
2366	{	2572	{
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);	2573	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		2574
2369	if (w->wd < 0)	2575	if (w->wd < 0)
2370	{	2576	{
		2577	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 */	2578	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2372		2579
2373	/* monitor some parent directory for speedup hints */	2580	/* monitor some parent directory for speedup hints */
2374	/* note that exceeding the hardcoded limit is not a correctness issue, */	2581	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2375	/* but an efficiency issue only */	2582	/* but an efficiency issue only */
2376	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2583	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2377	{	2584	{
2378	char path [4096];	2585	char path [4096];
2379	strcpy (path, w->path);	2586	strcpy (path, w->path);
…		…
2383	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2590	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2384	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2591	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2385		2592
2386	char *pend = strrchr (path, '/');	2593	char *pend = strrchr (path, '/');
2387		2594
2388	if (!pend)	2595	if (!pend || pend == path)
2389	break; /* whoops, no '/', complain to your admin */	2596	break;
2390		2597
2391	*pend = 0;	2598	*pend = 0;
2392	w->wd = inotify_add_watch (fs_fd, path, mask);	2599	w->wd = inotify_add_watch (fs_fd, path, mask);
2393	}	2600	}
2394	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2601	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2395	}	2602	}
2396	}	2603	}
2397	else
2398	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2399		2604
2400	if (w->wd >= 0)	2605	if (w->wd >= 0)
		2606	{
2401	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2607	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2608
		2609	/* now local changes will be tracked by inotify, but remote changes won't */
		2610	/* unless the filesystem it known to be local, we therefore still poll */
		2611	/* also do poll on <2.6.25, but with normal frequency */
		2612	struct statfs sfs;
		2613
		2614	if (fs_2625 && !statfs (w->path, &sfs))
		2615	if (sfs.f_type == 0x1373 /* devfs */
		2616	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2617	|| sfs.f_type == 0x3153464a /* jfs */
		2618	|| sfs.f_type == 0x52654973 /* reiser3 */
		2619	|| sfs.f_type == 0x01021994 /* tempfs */
		2620	|| sfs.f_type == 0x58465342 /* xfs */)
		2621	return;
		2622
		2623	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2624	ev_timer_again (EV_A_ &w->timer);
		2625	}
2402	}	2626	}
2403		2627
2404	static void noinline	2628	static void noinline
2405	infy_del (EV_P_ ev_stat *w)	2629	infy_del (EV_P_ ev_stat *w)
2406	{	2630	{
…		…
2420		2644
2421	static void noinline	2645	static void noinline
2422	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2646	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2423	{	2647	{
2424	if (slot < 0)	2648	if (slot < 0)
2425	/* overflow, need to check for all hahs slots */	2649	/* overflow, need to check for all hash slots */
2426	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2650	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2427	infy_wd (EV_A_ slot, wd, ev);	2651	infy_wd (EV_A_ slot, wd, ev);
2428	else	2652	else
2429	{	2653	{
2430	WL w_;	2654	WL w_;
…		…
2436		2660
2437	if (w->wd == wd || wd == -1)	2661	if (w->wd == wd || wd == -1)
2438	{	2662	{
2439	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2663	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2440	{	2664	{
		2665	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2441	w->wd = -1;	2666	w->wd = -1;
2442	infy_add (EV_A_ w); /* re-add, no matter what */	2667	infy_add (EV_A_ w); /* re-add, no matter what */
2443	}	2668	}
2444		2669
2445	stat_timer_cb (EV_A_ &w->timer, 0);	2670	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2458		2683
2459	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2684	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2460	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2685	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2461	}	2686	}
2462		2687
2463	void inline_size	2688	inline_size void
		2689	check_2625 (EV_P)
		2690	{
		2691	/* kernels < 2.6.25 are borked
		2692	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2693	*/
		2694	struct utsname buf;
		2695	int major, minor, micro;
		2696
		2697	if (uname (&buf))
		2698	return;
		2699
		2700	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2701	return;
		2702
		2703	if (major < 2
		2704	|| (major == 2 && minor < 6)
		2705	|| (major == 2 && minor == 6 && micro < 25))
		2706	return;
		2707
		2708	fs_2625 = 1;
		2709	}
		2710
		2711	inline_size void
2464	infy_init (EV_P)	2712	infy_init (EV_P)
2465	{	2713	{
2466	if (fs_fd != -2)	2714	if (fs_fd != -2)
2467	return;	2715	return;
		2716
		2717	fs_fd = -1;
		2718
		2719	check_2625 (EV_A);
2468		2720
2469	fs_fd = inotify_init ();	2721	fs_fd = inotify_init ();
2470		2722
2471	if (fs_fd >= 0)	2723	if (fs_fd >= 0)
2472	{	2724	{
…		…
2474	ev_set_priority (&fs_w, EV_MAXPRI);	2726	ev_set_priority (&fs_w, EV_MAXPRI);
2475	ev_io_start (EV_A_ &fs_w);	2727	ev_io_start (EV_A_ &fs_w);
2476	}	2728	}
2477	}	2729	}
2478		2730
2479	void inline_size	2731	inline_size void
2480	infy_fork (EV_P)	2732	infy_fork (EV_P)
2481	{	2733	{
2482	int slot;	2734	int slot;
2483		2735
2484	if (fs_fd < 0)	2736	if (fs_fd < 0)
…		…
2500	w->wd = -1;	2752	w->wd = -1;
2501		2753
2502	if (fs_fd >= 0)	2754	if (fs_fd >= 0)
2503	infy_add (EV_A_ w); /* re-add, no matter what */	2755	infy_add (EV_A_ w); /* re-add, no matter what */
2504	else	2756	else
2505	ev_timer_start (EV_A_ &w->timer);	2757	ev_timer_again (EV_A_ &w->timer);
2506	}	2758	}
2507
2508	}	2759	}
2509	}	2760	}
2510		2761
		2762	#endif
		2763
		2764	#ifdef _WIN32
		2765	# define EV_LSTAT(p,b) _stati64 (p, b)
		2766	#else
		2767	# define EV_LSTAT(p,b) lstat (p, b)
2511	#endif	2768	#endif
2512		2769
2513	void	2770	void
2514	ev_stat_stat (EV_P_ ev_stat *w)	2771	ev_stat_stat (EV_P_ ev_stat *w)
2515	{	2772	{
…		…
2542	|| w->prev.st_atime != w->attr.st_atime	2799	|| w->prev.st_atime != w->attr.st_atime
2543	|| w->prev.st_mtime != w->attr.st_mtime	2800	|| w->prev.st_mtime != w->attr.st_mtime
2544	|| w->prev.st_ctime != w->attr.st_ctime	2801	|| w->prev.st_ctime != w->attr.st_ctime
2545	) {	2802	) {
2546	#if EV_USE_INOTIFY	2803	#if EV_USE_INOTIFY
		2804	if (fs_fd >= 0)
		2805	{
2547	infy_del (EV_A_ w);	2806	infy_del (EV_A_ w);
2548	infy_add (EV_A_ w);	2807	infy_add (EV_A_ w);
2549	ev_stat_stat (EV_A_ w); /* avoid race... */	2808	ev_stat_stat (EV_A_ w); /* avoid race... */
		2809	}
2550	#endif	2810	#endif
2551		2811
2552	ev_feed_event (EV_A_ w, EV_STAT);	2812	ev_feed_event (EV_A_ w, EV_STAT);
2553	}	2813	}
2554	}	2814	}
…		…
2557	ev_stat_start (EV_P_ ev_stat *w)	2817	ev_stat_start (EV_P_ ev_stat *w)
2558	{	2818	{
2559	if (expect_false (ev_is_active (w)))	2819	if (expect_false (ev_is_active (w)))
2560	return;	2820	return;
2561		2821
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);	2822	ev_stat_stat (EV_A_ w);
2567		2823
		2824	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2568	if (w->interval < MIN_STAT_INTERVAL)	2825	w->interval = MIN_STAT_INTERVAL;
2569	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2570		2826
2571	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2827	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));	2828	ev_set_priority (&w->timer, ev_priority (w));
2573		2829
2574	#if EV_USE_INOTIFY	2830	#if EV_USE_INOTIFY
2575	infy_init (EV_A);	2831	infy_init (EV_A);
2576		2832
2577	if (fs_fd >= 0)	2833	if (fs_fd >= 0)
2578	infy_add (EV_A_ w);	2834	infy_add (EV_A_ w);
2579	else	2835	else
2580	#endif	2836	#endif
2581	ev_timer_start (EV_A_ &w->timer);	2837	ev_timer_again (EV_A_ &w->timer);
2582		2838
2583	ev_start (EV_A_ (W)w, 1);	2839	ev_start (EV_A_ (W)w, 1);
2584		2840
2585	EV_FREQUENT_CHECK;	2841	EV_FREQUENT_CHECK;
2586	}	2842	}
…		…
2756	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3012	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2757	}	3013	}
2758	}	3014	}
2759	}	3015	}
2760		3016
		3017	static void
		3018	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		3019	{
		3020	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		3021
		3022	ev_embed_stop (EV_A_ w);
		3023
		3024	{
		3025	struct ev_loop *loop = w->other;
		3026
		3027	ev_loop_fork (EV_A);
		3028	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		3029	}
		3030
		3031	ev_embed_start (EV_A_ w);
		3032	}
		3033
2761	#if 0	3034	#if 0
2762	static void	3035	static void
2763	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	3036	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2764	{	3037	{
2765	ev_idle_stop (EV_A_ idle);	3038	ev_idle_stop (EV_A_ idle);
…		…
2772	if (expect_false (ev_is_active (w)))	3045	if (expect_false (ev_is_active (w)))
2773	return;	3046	return;
2774		3047
2775	{	3048	{
2776	struct ev_loop *loop = w->other;	3049	struct ev_loop *loop = w->other;
2777	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3050	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);	3051	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2779	}	3052	}
2780		3053
2781	EV_FREQUENT_CHECK;	3054	EV_FREQUENT_CHECK;
2782		3055
…		…
2785		3058
2786	ev_prepare_init (&w->prepare, embed_prepare_cb);	3059	ev_prepare_init (&w->prepare, embed_prepare_cb);
2787	ev_set_priority (&w->prepare, EV_MINPRI);	3060	ev_set_priority (&w->prepare, EV_MINPRI);
2788	ev_prepare_start (EV_A_ &w->prepare);	3061	ev_prepare_start (EV_A_ &w->prepare);
2789		3062
		3063	ev_fork_init (&w->fork, embed_fork_cb);
		3064	ev_fork_start (EV_A_ &w->fork);
		3065
2790	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	3066	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2791		3067
2792	ev_start (EV_A_ (W)w, 1);	3068	ev_start (EV_A_ (W)w, 1);
2793		3069
2794	EV_FREQUENT_CHECK;	3070	EV_FREQUENT_CHECK;
…		…
2801	if (expect_false (!ev_is_active (w)))	3077	if (expect_false (!ev_is_active (w)))
2802	return;	3078	return;
2803		3079
2804	EV_FREQUENT_CHECK;	3080	EV_FREQUENT_CHECK;
2805		3081
2806	ev_io_stop (EV_A_ &w->io);	3082	ev_io_stop (EV_A_ &w->io);
2807	ev_prepare_stop (EV_A_ &w->prepare);	3083	ev_prepare_stop (EV_A_ &w->prepare);
2808		3084	ev_fork_stop (EV_A_ &w->fork);
2809	ev_stop (EV_A_ (W)w);
2810		3085
2811	EV_FREQUENT_CHECK;	3086	EV_FREQUENT_CHECK;
2812	}	3087	}
2813	#endif	3088	#endif
2814		3089
…		…
2911	once_cb (EV_P_ struct ev_once *once, int revents)	3186	once_cb (EV_P_ struct ev_once *once, int revents)
2912	{	3187	{
2913	void (*cb)(int revents, void *arg) = once->cb;	3188	void (*cb)(int revents, void *arg) = once->cb;
2914	void *arg = once->arg;	3189	void *arg = once->arg;
2915		3190
2916	ev_io_stop (EV_A_ &once->io);	3191	ev_io_stop (EV_A_ &once->io);
2917	ev_timer_stop (EV_A_ &once->to);	3192	ev_timer_stop (EV_A_ &once->to);
2918	ev_free (once);	3193	ev_free (once);
2919		3194
2920	cb (revents, arg);	3195	cb (revents, arg);
2921	}	3196	}
2922		3197
2923	static void	3198	static void
2924	once_cb_io (EV_P_ ev_io *w, int revents)	3199	once_cb_io (EV_P_ ev_io *w, int revents)
2925	{	3200	{
2926	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3201	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3202
		3203	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2927	}	3204	}
2928		3205
2929	static void	3206	static void
2930	once_cb_to (EV_P_ ev_timer *w, int revents)	3207	once_cb_to (EV_P_ ev_timer *w, int revents)
2931	{	3208	{
2932	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3209	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3210
		3211	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2933	}	3212	}
2934		3213
2935	void	3214	void
2936	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3215	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2937	{	3216	{
…		…
2959	ev_timer_set (&once->to, timeout, 0.);	3238	ev_timer_set (&once->to, timeout, 0.);
2960	ev_timer_start (EV_A_ &once->to);	3239	ev_timer_start (EV_A_ &once->to);
2961	}	3240	}
2962	}	3241	}
2963		3242
		3243	/*****************************************************************************/
		3244
		3245	#if EV_WALK_ENABLE
		3246	void
		3247	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3248	{
		3249	int i, j;
		3250	ev_watcher_list *wl, *wn;
		3251
		3252	if (types & (EV_IO | EV_EMBED))
		3253	for (i = 0; i < anfdmax; ++i)
		3254	for (wl = anfds [i].head; wl; )
		3255	{
		3256	wn = wl->next;
		3257
		3258	#if EV_EMBED_ENABLE
		3259	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3260	{
		3261	if (types & EV_EMBED)
		3262	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3263	}
		3264	else
		3265	#endif
		3266	#if EV_USE_INOTIFY
		3267	if (ev_cb ((ev_io *)wl) == infy_cb)
		3268	;
		3269	else
		3270	#endif
		3271	if ((ev_io *)wl != &pipe_w)
		3272	if (types & EV_IO)
		3273	cb (EV_A_ EV_IO, wl);
		3274
		3275	wl = wn;
		3276	}
		3277
		3278	if (types & (EV_TIMER | EV_STAT))
		3279	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3280	#if EV_STAT_ENABLE
		3281	/*TODO: timer is not always active*/
		3282	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3283	{
		3284	if (types & EV_STAT)
		3285	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3286	}
		3287	else
		3288	#endif
		3289	if (types & EV_TIMER)
		3290	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3291
		3292	#if EV_PERIODIC_ENABLE
		3293	if (types & EV_PERIODIC)
		3294	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3295	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3296	#endif
		3297
		3298	#if EV_IDLE_ENABLE
		3299	if (types & EV_IDLE)
		3300	for (j = NUMPRI; i--; )
		3301	for (i = idlecnt [j]; i--; )
		3302	cb (EV_A_ EV_IDLE, idles [j][i]);
		3303	#endif
		3304
		3305	#if EV_FORK_ENABLE
		3306	if (types & EV_FORK)
		3307	for (i = forkcnt; i--; )
		3308	if (ev_cb (forks [i]) != embed_fork_cb)
		3309	cb (EV_A_ EV_FORK, forks [i]);
		3310	#endif
		3311
		3312	#if EV_ASYNC_ENABLE
		3313	if (types & EV_ASYNC)
		3314	for (i = asynccnt; i--; )
		3315	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3316	#endif
		3317
		3318	if (types & EV_PREPARE)
		3319	for (i = preparecnt; i--; )
		3320	#if EV_EMBED_ENABLE
		3321	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3322	#endif
		3323	cb (EV_A_ EV_PREPARE, prepares [i]);
		3324
		3325	if (types & EV_CHECK)
		3326	for (i = checkcnt; i--; )
		3327	cb (EV_A_ EV_CHECK, checks [i]);
		3328
		3329	if (types & EV_SIGNAL)
		3330	for (i = 0; i < signalmax; ++i)
		3331	for (wl = signals [i].head; wl; )
		3332	{
		3333	wn = wl->next;
		3334	cb (EV_A_ EV_SIGNAL, wl);
		3335	wl = wn;
		3336	}
		3337
		3338	if (types & EV_CHILD)
		3339	for (i = EV_PID_HASHSIZE; i--; )
		3340	for (wl = childs [i]; wl; )
		3341	{
		3342	wn = wl->next;
		3343	cb (EV_A_ EV_CHILD, wl);
		3344	wl = wn;
		3345	}
		3346	/* EV_STAT 0x00001000 /* stat data changed */
		3347	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3348	}
		3349	#endif
		3350
2964	#if EV_MULTIPLICITY	3351	#if EV_MULTIPLICITY
2965	#include "ev_wrap.h"	3352	#include "ev_wrap.h"
2966	#endif	3353	#endif
2967		3354
2968	#ifdef __cplusplus	3355	#ifdef __cplusplus

Diff Legend

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