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

Comparing libev/ev.c (file contents):
Revision 1.253 by root, Sat May 31 03:13:27 2008 UTC vs.
Revision 1.279 by root, Fri Feb 6 20:17:43 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
…		…
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 */
		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
167		188
168	#ifndef EV_USE_MONOTONIC	189	#ifndef EV_USE_MONOTONIC
169	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
170	# define EV_USE_MONOTONIC 1	191	# define EV_USE_MONOTONIC 1
171	# else	192	# else
172	# define EV_USE_MONOTONIC 0	193	# define EV_USE_MONOTONIC 0
173	# endif	194	# endif
174	#endif	195	#endif
175		196
176	#ifndef EV_USE_REALTIME	197	#ifndef EV_USE_REALTIME
177	# define EV_USE_REALTIME 0	198	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
178	#endif	199	#endif
179		200
180	#ifndef EV_USE_NANOSLEEP	201	#ifndef EV_USE_NANOSLEEP
181	# if _POSIX_C_SOURCE >= 199309L	202	# if _POSIX_C_SOURCE >= 199309L
182	# define EV_USE_NANOSLEEP 1	203	# define EV_USE_NANOSLEEP 1
…		…
285	# include <sys/select.h>	306	# include <sys/select.h>
286	# endif	307	# endif
287	#endif	308	#endif
288		309
289	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
290	# 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
291	#endif	319	#endif
292		320
293	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
294	# 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
295	#endif	332	#endif
296		333
297	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
298	/* 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 */
299	# include <stdint.h>	336	# include <stdint.h>
…		…
360	typedef ev_watcher_time *WT;	397	typedef ev_watcher_time *WT;
361		398
362	#define ev_active(w) ((W)(w))->active	399	#define ev_active(w) ((W)(w))->active
363	#define ev_at(w) ((WT)(w))->at	400	#define ev_at(w) ((WT)(w))->at
364		401
365	#if EV_USE_MONOTONIC	402	#if EV_USE_REALTIME
366	/* 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 */
367	/* 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
368	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? */
369	#endif	410	#endif
370		411
371	#ifdef _WIN32	412	#ifdef _WIN32
372	# include "ev_win32.c"	413	# include "ev_win32.c"
…		…
381	{	422	{
382	syserr_cb = cb;	423	syserr_cb = cb;
383	}	424	}
384		425
385	static void noinline	426	static void noinline
386	syserr (const char *msg)	427	ev_syserr (const char *msg)
387	{	428	{
388	if (!msg)	429	if (!msg)
389	msg = "(libev) system error";	430	msg = "(libev) system error";
390		431
391	if (syserr_cb)	432	if (syserr_cb)
…		…
442	typedef struct	483	typedef struct
443	{	484	{
444	WL head;	485	WL head;
445	unsigned char events;	486	unsigned char events;
446	unsigned char reify;	487	unsigned char reify;
		488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
		489	unsigned char unused;
		490	#if EV_USE_EPOLL
		491	unsigned int egen; /* generation counter to counter epoll bugs */
		492	#endif
447	#if EV_SELECT_IS_WINSOCKET	493	#if EV_SELECT_IS_WINSOCKET
448	SOCKET handle;	494	SOCKET handle;
449	#endif	495	#endif
450	} ANFD;	496	} ANFD;
451		497
…		…
511		557
512	ev_tstamp	558	ev_tstamp
513	ev_time (void)	559	ev_time (void)
514	{	560	{
515	#if EV_USE_REALTIME	561	#if EV_USE_REALTIME
		562	if (expect_true (have_realtime))
		563	{
516	struct timespec ts;	564	struct timespec ts;
517	clock_gettime (CLOCK_REALTIME, &ts);	565	clock_gettime (CLOCK_REALTIME, &ts);
518	return ts.tv_sec + ts.tv_nsec * 1e-9;	566	return ts.tv_sec + ts.tv_nsec * 1e-9;
519	#else	567	}
		568	#endif
		569
520	struct timeval tv;	570	struct timeval tv;
521	gettimeofday (&tv, 0);	571	gettimeofday (&tv, 0);
522	return tv.tv_sec + tv.tv_usec * 1e-6;	572	return tv.tv_sec + tv.tv_usec * 1e-6;
523	#endif
524	}	573	}
525		574
526	ev_tstamp inline_size	575	ev_tstamp inline_size
527	get_clock (void)	576	get_clock (void)
528	{	577	{
…		…
564	struct timeval tv;	613	struct timeval tv;
565		614
566	tv.tv_sec = (time_t)delay;	615	tv.tv_sec = (time_t)delay;
567	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
568		617
		618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		619	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		620	/* by older ones */
569	select (0, 0, 0, 0, &tv);	621	select (0, 0, 0, 0, &tv);
570	#endif	622	#endif
571	}	623	}
572	}	624	}
573		625
…		…
600	array_realloc (int elem, void base, int cur, int cnt)	652	array_realloc (int elem, void base, int cur, int cnt)
601	{	653	{
602	cur = array_nextsize (elem, cur, cnt);	654	cur = array_nextsize (elem, cur, cnt);
603	return ev_realloc (base, elem * *cur);	655	return ev_realloc (base, elem * *cur);
604	}	656	}
		657
		658	#define array_init_zero(base,count) \
		659	memset ((void )(base), 0, sizeof ((base)) * (count))
605		660
606	#define array_needsize(type,base,cur,cnt,init) \	661	#define array_needsize(type,base,cur,cnt,init) \
607	if (expect_false ((cnt) > (cur))) \	662	if (expect_false ((cnt) > (cur))) \
608	{ \	663	{ \
609	int ocur_ = (cur); \	664	int ocur_ = (cur); \
…		…
653	ev_feed_event (EV_A_ events [i], type);	708	ev_feed_event (EV_A_ events [i], type);
654	}	709	}
655		710
656	/*****************************************************************************/	711	/*****************************************************************************/
657		712
658	void inline_size
659	anfds_init (ANFD *base, int count)
660	{
661	while (count--)
662	{
663	base->head = 0;
664	base->events = EV_NONE;
665	base->reify = 0;
666
667	++base;
668	}
669	}
670
671	void inline_speed	713	void inline_speed
672	fd_event (EV_P_ int fd, int revents)	714	fd_event (EV_P_ int fd, int revents)
673	{	715	{
674	ANFD *anfd = anfds + fd;	716	ANFD *anfd = anfds + fd;
675	ev_io *w;	717	ev_io *w;
…		…
707	events \|= (unsigned char)w->events;	749	events \|= (unsigned char)w->events;
708		750
709	#if EV_SELECT_IS_WINSOCKET	751	#if EV_SELECT_IS_WINSOCKET
710	if (events)	752	if (events)
711	{	753	{
712	unsigned long argp;	754	unsigned long arg;
713	#ifdef EV_FD_TO_WIN32_HANDLE	755	#ifdef EV_FD_TO_WIN32_HANDLE
714	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	756	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
715	#else	757	#else
716	anfd->handle = _get_osfhandle (fd);	758	anfd->handle = _get_osfhandle (fd);
717	#endif	759	#endif
718	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	760	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
719	}	761	}
720	#endif	762	#endif
721		763
722	{	764	{
723	unsigned char o_events = anfd->events;	765	unsigned char o_events = anfd->events;
…		…
776	{	818	{
777	int fd;	819	int fd;
778		820
779	for (fd = 0; fd < anfdmax; ++fd)	821	for (fd = 0; fd < anfdmax; ++fd)
780	if (anfds [fd].events)	822	if (anfds [fd].events)
781	if (!fd_valid (fd) == -1 && errno == EBADF)	823	if (!fd_valid (fd) && errno == EBADF)
782	fd_kill (EV_A_ fd);	824	fd_kill (EV_A_ fd);
783	}	825	}
784		826
785	/* called on ENOMEM in select/poll to kill some fds and retry */	827	/* called on ENOMEM in select/poll to kill some fds and retry */
786	static void noinline	828	static void noinline
…		…
804		846
805	for (fd = 0; fd < anfdmax; ++fd)	847	for (fd = 0; fd < anfdmax; ++fd)
806	if (anfds [fd].events)	848	if (anfds [fd].events)
807	{	849	{
808	anfds [fd].events = 0;	850	anfds [fd].events = 0;
		851	anfds [fd].emask = 0;
809	fd_change (EV_A_ fd, EV_IOFDSET \| 1);	852	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
810	}	853	}
811	}	854	}
812		855
813	/*****************************************************************************/	856	/*****************************************************************************/
…		…
965	static ANSIG *signals;	1008	static ANSIG *signals;
966	static int signalmax;	1009	static int signalmax;
967		1010
968	static EV_ATOMIC_T gotsig;	1011	static EV_ATOMIC_T gotsig;
969		1012
970	void inline_size
971	signals_init (ANSIG *base, int count)
972	{
973	while (count--)
974	{
975	base->head = 0;
976	base->gotsig = 0;
977
978	++base;
979	}
980	}
981
982	/*****************************************************************************/	1013	/*****************************************************************************/
983		1014
984	void inline_speed	1015	void inline_speed
985	fd_intern (int fd)	1016	fd_intern (int fd)
986	{	1017	{
987	#ifdef _WIN32	1018	#ifdef _WIN32
988	int arg = 1;	1019	unsigned long arg = 1;
989	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1020	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
990	#else	1021	#else
991	fcntl (fd, F_SETFD, FD_CLOEXEC);	1022	fcntl (fd, F_SETFD, FD_CLOEXEC);
992	fcntl (fd, F_SETFL, O_NONBLOCK);	1023	fcntl (fd, F_SETFL, O_NONBLOCK);
993	#endif	1024	#endif
…		…
1007	}	1038	}
1008	else	1039	else
1009	#endif	1040	#endif
1010	{	1041	{
1011	while (pipe (evpipe))	1042	while (pipe (evpipe))
1012	syserr ("(libev) error creating signal/async pipe");	1043	ev_syserr ("(libev) error creating signal/async pipe");
1013		1044
1014	fd_intern (evpipe [0]);	1045	fd_intern (evpipe [0]);
1015	fd_intern (evpipe [1]);	1046	fd_intern (evpipe [1]);
1016	ev_io_set (&pipeev, evpipe [0], EV_READ);	1047	ev_io_set (&pipeev, evpipe [0], EV_READ);
1017	}	1048	}
…		…
1107	ev_feed_signal_event (EV_P_ int signum)	1138	ev_feed_signal_event (EV_P_ int signum)
1108	{	1139	{
1109	WL w;	1140	WL w;
1110		1141
1111	#if EV_MULTIPLICITY	1142	#if EV_MULTIPLICITY
1112	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1143	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
1113	#endif	1144	#endif
1114		1145
1115	--signum;	1146	--signum;
1116		1147
1117	if (signum < 0 \|\| signum >= signalmax)	1148	if (signum < 0 \|\| signum >= signalmax)
…		…
1246	/* kqueue is borked on everything but netbsd apparently */	1277	/* kqueue is borked on everything but netbsd apparently */
1247	/* it usually doesn't work correctly on anything but sockets and pipes */	1278	/* it usually doesn't work correctly on anything but sockets and pipes */
1248	flags &= ~EVBACKEND_KQUEUE;	1279	flags &= ~EVBACKEND_KQUEUE;
1249	#endif	1280	#endif
1250	#ifdef __APPLE__	1281	#ifdef __APPLE__
1251	// flags &= ~EVBACKEND_KQUEUE; for documentation	1282	/* only select works correctly on that "unix-certified" platform */
1252	flags &= ~EVBACKEND_POLL;	1283	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
		1284	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1253	#endif	1285	#endif
1254		1286
1255	return flags;	1287	return flags;
1256	}	1288	}
1257		1289
…		…
1294	static void noinline	1326	static void noinline
1295	loop_init (EV_P_ unsigned int flags)	1327	loop_init (EV_P_ unsigned int flags)
1296	{	1328	{
1297	if (!backend)	1329	if (!backend)
1298	{	1330	{
		1331	#if EV_USE_REALTIME
		1332	if (!have_realtime)
		1333	{
		1334	struct timespec ts;
		1335
		1336	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1337	have_realtime = 1;
		1338	}
		1339	#endif
		1340
1299	#if EV_USE_MONOTONIC	1341	#if EV_USE_MONOTONIC
		1342	if (!have_monotonic)
1300	{	1343	{
1301	struct timespec ts;	1344	struct timespec ts;
		1345
1302	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1346	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1303	have_monotonic = 1;	1347	have_monotonic = 1;
1304	}	1348	}
1305	#endif	1349	#endif
1306		1350
1307	ev_rt_now = ev_time ();	1351	ev_rt_now = ev_time ();
1308	mn_now = get_clock ();	1352	mn_now = get_clock ();
1309	now_floor = mn_now;	1353	now_floor = mn_now;
…		…
1507	{	1551	{
1508	postfork = 1; /* must be in line with ev_default_fork */	1552	postfork = 1; /* must be in line with ev_default_fork */
1509	}	1553	}
1510		1554
1511	#if EV_VERIFY	1555	#if EV_VERIFY
1512	void noinline	1556	static void noinline
1513	verify_watcher (EV_P_ W w)	1557	verify_watcher (EV_P_ W w)
1514	{	1558	{
1515	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1559	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1516		1560
1517	if (w->pending)	1561	if (w->pending)
1518	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	1562	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1519	}	1563	}
1520		1564
1521	static void noinline	1565	static void noinline
1522	verify_heap (EV_P_ ANHE *heap, int N)	1566	verify_heap (EV_P_ ANHE *heap, int N)
1523	{	1567	{
1524	int i;	1568	int i;
1525		1569
1526	for (i = HEAP0; i < N + HEAP0; ++i)	1570	for (i = HEAP0; i < N + HEAP0; ++i)
1527	{	1571	{
1528	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));	1572	assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1529	assert (("heap condition violated", i == HEAP0 \|\| ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));	1573	assert (("libev: heap condition violated", i == HEAP0 \|\| ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1530	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));	1574	assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1531		1575
1532	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	1576	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1533	}	1577	}
1534	}	1578	}
1535		1579
1536	static void noinline	1580	static void noinline
1537	array_verify (EV_P_ W *ws, int cnt)	1581	array_verify (EV_P_ W *ws, int cnt)
1538	{	1582	{
1539	while (cnt--)	1583	while (cnt--)
1540	{	1584	{
1541	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));	1585	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1542	verify_watcher (EV_A_ ws [cnt]);	1586	verify_watcher (EV_A_ ws [cnt]);
1543	}	1587	}
1544	}	1588	}
1545	#endif	1589	#endif
1546		1590
…		…
1553		1597
1554	assert (activecnt >= -1);	1598	assert (activecnt >= -1);
1555		1599
1556	assert (fdchangemax >= fdchangecnt);	1600	assert (fdchangemax >= fdchangecnt);
1557	for (i = 0; i < fdchangecnt; ++i)	1601	for (i = 0; i < fdchangecnt; ++i)
1558	assert (("negative fd in fdchanges", fdchanges [i] >= 0));	1602	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1559		1603
1560	assert (anfdmax >= 0);	1604	assert (anfdmax >= 0);
1561	for (i = 0; i < anfdmax; ++i)	1605	for (i = 0; i < anfdmax; ++i)
1562	for (w = anfds [i].head; w; w = w->next)	1606	for (w = anfds [i].head; w; w = w->next)
1563	{	1607	{
1564	verify_watcher (EV_A_ (W)w);	1608	verify_watcher (EV_A_ (W)w);
1565	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));	1609	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1566	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	1610	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1567	}	1611	}
1568		1612
1569	assert (timermax >= timercnt);	1613	assert (timermax >= timercnt);
1570	verify_heap (EV_A_ timers, timercnt);	1614	verify_heap (EV_A_ timers, timercnt);
1571		1615
…		…
1648	{	1692	{
1649	#if EV_MULTIPLICITY	1693	#if EV_MULTIPLICITY
1650	struct ev_loop *loop = ev_default_loop_ptr;	1694	struct ev_loop *loop = ev_default_loop_ptr;
1651	#endif	1695	#endif
1652		1696
		1697	ev_default_loop_ptr = 0;
		1698
1653	#ifndef _WIN32	1699	#ifndef _WIN32
1654	ev_ref (EV_A); /* child watcher */	1700	ev_ref (EV_A); /* child watcher */
1655	ev_signal_stop (EV_A_ &childev);	1701	ev_signal_stop (EV_A_ &childev);
1656	#endif	1702	#endif
1657		1703
…		…
1663	{	1709	{
1664	#if EV_MULTIPLICITY	1710	#if EV_MULTIPLICITY
1665	struct ev_loop *loop = ev_default_loop_ptr;	1711	struct ev_loop *loop = ev_default_loop_ptr;
1666	#endif	1712	#endif
1667		1713
1668	if (backend)
1669	postfork = 1; /* must be in line with ev_loop_fork */	1714	postfork = 1; /* must be in line with ev_loop_fork */
1670	}	1715	}
1671		1716
1672	/*****************************************************************************/	1717	/*****************************************************************************/
1673		1718
1674	void	1719	void
…		…
1687	{	1732	{
1688	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1733	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1689		1734
1690	if (expect_true (p->w))	1735	if (expect_true (p->w))
1691	{	1736	{
1692	/assert (("non-pending watcher on pending list", p->w->pending));/	1737	/assert (("libev: non-pending watcher on pending list", p->w->pending));/
1693		1738
1694	p->w->pending = 0;	1739	p->w->pending = 0;
1695	EV_CB_INVOKE (p->w, p->events);	1740	EV_CB_INVOKE (p->w, p->events);
1696	EV_FREQUENT_CHECK;	1741	EV_FREQUENT_CHECK;
1697	}	1742	}
…		…
1728		1773
1729	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1774	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1730	{	1775	{
1731	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);	1776	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);
1732		1777
1733	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1778	/assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));/
1734		1779
1735	/* first reschedule or stop timer */	1780	/* first reschedule or stop timer */
1736	if (w->repeat)	1781	if (w->repeat)
1737	{	1782	{
1738	ev_at (w) += w->repeat;	1783	ev_at (w) += w->repeat;
1739	if (ev_at (w) < mn_now)	1784	if (ev_at (w) < mn_now)
1740	ev_at (w) = mn_now;	1785	ev_at (w) = mn_now;
1741		1786
1742	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1787	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1743		1788
1744	ANHE_at_cache (timers [HEAP0]);	1789	ANHE_at_cache (timers [HEAP0]);
1745	downheap (timers, timercnt, HEAP0);	1790	downheap (timers, timercnt, HEAP0);
1746	}	1791	}
1747	else	1792	else
…		…
1760		1805
1761	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1806	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1762	{	1807	{
1763	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);	1808	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);
1764		1809
1765	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1810	/assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));/
1766		1811
1767	/* first reschedule or stop timer */	1812	/* first reschedule or stop timer */
1768	if (w->reschedule_cb)	1813	if (w->reschedule_cb)
1769	{	1814	{
1770	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1815	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1771		1816
1772	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1817	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1773		1818
1774	ANHE_at_cache (periodics [HEAP0]);	1819	ANHE_at_cache (periodics [HEAP0]);
1775	downheap (periodics, periodiccnt, HEAP0);	1820	downheap (periodics, periodiccnt, HEAP0);
1776	}	1821	}
1777	else if (w->interval)	1822	else if (w->interval)
…		…
1905	ev_unref (EV_P)	1950	ev_unref (EV_P)
1906	{	1951	{
1907	--activecnt;	1952	--activecnt;
1908	}	1953	}
1909		1954
		1955	void
		1956	ev_now_update (EV_P)
		1957	{
		1958	time_update (EV_A_ 1e100);
		1959	}
		1960
1910	static int loop_done;	1961	static int loop_done;
1911		1962
1912	void	1963	void
1913	ev_loop (EV_P_ int flags)	1964	ev_loop (EV_P_ int flags)
1914	{	1965	{
…		…
2122	int fd = w->fd;	2173	int fd = w->fd;
2123		2174
2124	if (expect_false (ev_is_active (w)))	2175	if (expect_false (ev_is_active (w)))
2125	return;	2176	return;
2126		2177
2127	assert (("ev_io_start called with negative fd", fd >= 0));	2178	assert (("libev: ev_io_start called with negative fd", fd >= 0));
		2179	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET \| EV_READ \| EV_WRITE))));
2128		2180
2129	EV_FREQUENT_CHECK;	2181	EV_FREQUENT_CHECK;
2130		2182
2131	ev_start (EV_A_ (W)w, 1);	2183	ev_start (EV_A_ (W)w, 1);
2132	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2184	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2133	wlist_add (&anfds[fd].head, (WL)w);	2185	wlist_add (&anfds[fd].head, (WL)w);
2134		2186
2135	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);	2187	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
2136	w->events &= ~EV_IOFDSET;	2188	w->events &= ~EV_IOFDSET;
2137		2189
…		…
2143	{	2195	{
2144	clear_pending (EV_A_ (W)w);	2196	clear_pending (EV_A_ (W)w);
2145	if (expect_false (!ev_is_active (w)))	2197	if (expect_false (!ev_is_active (w)))
2146	return;	2198	return;
2147		2199
2148	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2200	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2149		2201
2150	EV_FREQUENT_CHECK;	2202	EV_FREQUENT_CHECK;
2151		2203
2152	wlist_del (&anfds[w->fd].head, (WL)w);	2204	wlist_del (&anfds[w->fd].head, (WL)w);
2153	ev_stop (EV_A_ (W)w);	2205	ev_stop (EV_A_ (W)w);
…		…
2163	if (expect_false (ev_is_active (w)))	2215	if (expect_false (ev_is_active (w)))
2164	return;	2216	return;
2165		2217
2166	ev_at (w) += mn_now;	2218	ev_at (w) += mn_now;
2167		2219
2168	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2220	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2169		2221
2170	EV_FREQUENT_CHECK;	2222	EV_FREQUENT_CHECK;
2171		2223
2172	++timercnt;	2224	++timercnt;
2173	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	2225	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
…		…
2176	ANHE_at_cache (timers [ev_active (w)]);	2228	ANHE_at_cache (timers [ev_active (w)]);
2177	upheap (timers, ev_active (w));	2229	upheap (timers, ev_active (w));
2178		2230
2179	EV_FREQUENT_CHECK;	2231	EV_FREQUENT_CHECK;
2180		2232
2181	/assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));/	2233	/assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));/
2182	}	2234	}
2183		2235
2184	void noinline	2236	void noinline
2185	ev_timer_stop (EV_P_ ev_timer *w)	2237	ev_timer_stop (EV_P_ ev_timer *w)
2186	{	2238	{
…		…
2191	EV_FREQUENT_CHECK;	2243	EV_FREQUENT_CHECK;
2192		2244
2193	{	2245	{
2194	int active = ev_active (w);	2246	int active = ev_active (w);
2195		2247
2196	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2248	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2197		2249
2198	--timercnt;	2250	--timercnt;
2199		2251
2200	if (expect_true (active < timercnt + HEAP0))	2252	if (expect_true (active < timercnt + HEAP0))
2201	{	2253	{
…		…
2245		2297
2246	if (w->reschedule_cb)	2298	if (w->reschedule_cb)
2247	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2299	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2248	else if (w->interval)	2300	else if (w->interval)
2249	{	2301	{
2250	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2302	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2251	/* this formula differs from the one in periodic_reify because we do not always round up */	2303	/* this formula differs from the one in periodic_reify because we do not always round up */
2252	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2304	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2253	}	2305	}
2254	else	2306	else
2255	ev_at (w) = w->offset;	2307	ev_at (w) = w->offset;
…		…
2263	ANHE_at_cache (periodics [ev_active (w)]);	2315	ANHE_at_cache (periodics [ev_active (w)]);
2264	upheap (periodics, ev_active (w));	2316	upheap (periodics, ev_active (w));
2265		2317
2266	EV_FREQUENT_CHECK;	2318	EV_FREQUENT_CHECK;
2267		2319
2268	/assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/	2320	/assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/
2269	}	2321	}
2270		2322
2271	void noinline	2323	void noinline
2272	ev_periodic_stop (EV_P_ ev_periodic *w)	2324	ev_periodic_stop (EV_P_ ev_periodic *w)
2273	{	2325	{
…		…
2278	EV_FREQUENT_CHECK;	2330	EV_FREQUENT_CHECK;
2279		2331
2280	{	2332	{
2281	int active = ev_active (w);	2333	int active = ev_active (w);
2282		2334
2283	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2335	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2284		2336
2285	--periodiccnt;	2337	--periodiccnt;
2286		2338
2287	if (expect_true (active < periodiccnt + HEAP0))	2339	if (expect_true (active < periodiccnt + HEAP0))
2288	{	2340	{
…		…
2311		2363
2312	void noinline	2364	void noinline
2313	ev_signal_start (EV_P_ ev_signal *w)	2365	ev_signal_start (EV_P_ ev_signal *w)
2314	{	2366	{
2315	#if EV_MULTIPLICITY	2367	#if EV_MULTIPLICITY
2316	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2368	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2317	#endif	2369	#endif
2318	if (expect_false (ev_is_active (w)))	2370	if (expect_false (ev_is_active (w)))
2319	return;	2371	return;
2320		2372
2321	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2373	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2322		2374
2323	evpipe_init (EV_A);	2375	evpipe_init (EV_A);
2324		2376
2325	EV_FREQUENT_CHECK;	2377	EV_FREQUENT_CHECK;
2326		2378
…		…
2329	sigset_t full, prev;	2381	sigset_t full, prev;
2330	sigfillset (&full);	2382	sigfillset (&full);
2331	sigprocmask (SIG_SETMASK, &full, &prev);	2383	sigprocmask (SIG_SETMASK, &full, &prev);
2332	#endif	2384	#endif
2333		2385
2334	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2386	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2335		2387
2336	#ifndef _WIN32	2388	#ifndef _WIN32
2337	sigprocmask (SIG_SETMASK, &prev, 0);	2389	sigprocmask (SIG_SETMASK, &prev, 0);
2338	#endif	2390	#endif
2339	}	2391	}
…		…
2377		2429
2378	void	2430	void
2379	ev_child_start (EV_P_ ev_child *w)	2431	ev_child_start (EV_P_ ev_child *w)
2380	{	2432	{
2381	#if EV_MULTIPLICITY	2433	#if EV_MULTIPLICITY
2382	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2434	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2383	#endif	2435	#endif
2384	if (expect_false (ev_is_active (w)))	2436	if (expect_false (ev_is_active (w)))
2385	return;	2437	return;
2386		2438
2387	EV_FREQUENT_CHECK;	2439	EV_FREQUENT_CHECK;
…		…
2412	# ifdef _WIN32	2464	# ifdef _WIN32
2413	# undef lstat	2465	# undef lstat
2414	# define lstat(a,b) _stati64 (a,b)	2466	# define lstat(a,b) _stati64 (a,b)
2415	# endif	2467	# endif
2416		2468
2417	#define DEF_STAT_INTERVAL 5.0074891	2469	#define DEF_STAT_INTERVAL 5.0074891
		2470	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2418	#define MIN_STAT_INTERVAL 0.1074891	2471	#define MIN_STAT_INTERVAL 0.1074891
2419		2472
2420	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2473	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2421		2474
2422	#if EV_USE_INOTIFY	2475	#if EV_USE_INOTIFY
2423	# define EV_INOTIFY_BUFSIZE 8192	2476	# define EV_INOTIFY_BUFSIZE 8192
…		…
2427	{	2480	{
2428	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);	2481	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);
2429		2482
2430	if (w->wd < 0)	2483	if (w->wd < 0)
2431	{	2484	{
		2485	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2432	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2486	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2433		2487
2434	/* monitor some parent directory for speedup hints */	2488	/* monitor some parent directory for speedup hints */
2435	/* note that exceeding the hardcoded limit is not a correctness issue, */	2489	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2436	/* but an efficiency issue only */	2490	/* but an efficiency issue only */
2437	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2491	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2438	{	2492	{
2439	char path [4096];	2493	char path [4096];
2440	strcpy (path, w->path);	2494	strcpy (path, w->path);
…		…
2444	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF	2498	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
2445	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);	2499	\| (errno == EACCES ? IN_ATTRIB : IN_CREATE \| IN_MOVED_TO);
2446		2500
2447	char *pend = strrchr (path, '/');	2501	char *pend = strrchr (path, '/');
2448		2502
2449	if (!pend)	2503	if (!pend \|\| pend == path)
2450	break; /* whoops, no '/', complain to your admin */	2504	break;
2451		2505
2452	*pend = 0;	2506	*pend = 0;
2453	w->wd = inotify_add_watch (fs_fd, path, mask);	2507	w->wd = inotify_add_watch (fs_fd, path, mask);
2454	}	2508	}
2455	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2509	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2456	}	2510	}
2457	}	2511	}
2458	else
2459	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2460		2512
2461	if (w->wd >= 0)	2513	if (w->wd >= 0)
		2514	{
2462	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2515	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2516
		2517	/* now local changes will be tracked by inotify, but remote changes won't */
		2518	/* unless the filesystem it known to be local, we therefore still poll */
		2519	/* also do poll on <2.6.25, but with normal frequency */
		2520	struct statfs sfs;
		2521
		2522	if (fs_2625 && !statfs (w->path, &sfs))
		2523	if (sfs.f_type == 0x1373 /* devfs */
		2524	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2525	\|\| sfs.f_type == 0x3153464a /* jfs */
		2526	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2527	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2528	\|\| sfs.f_type == 0x58465342 /* xfs */)
		2529	return;
		2530
		2531	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2532	ev_timer_again (EV_A_ &w->timer);
		2533	}
2463	}	2534	}
2464		2535
2465	static void noinline	2536	static void noinline
2466	infy_del (EV_P_ ev_stat *w)	2537	infy_del (EV_P_ ev_stat *w)
2467	{	2538	{
…		…
2481		2552
2482	static void noinline	2553	static void noinline
2483	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2554	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2484	{	2555	{
2485	if (slot < 0)	2556	if (slot < 0)
2486	/* overflow, need to check for all hahs slots */	2557	/* overflow, need to check for all hash slots */
2487	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2558	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2488	infy_wd (EV_A_ slot, wd, ev);	2559	infy_wd (EV_A_ slot, wd, ev);
2489	else	2560	else
2490	{	2561	{
2491	WL w_;	2562	WL w_;
…		…
2497		2568
2498	if (w->wd == wd \|\| wd == -1)	2569	if (w->wd == wd \|\| wd == -1)
2499	{	2570	{
2500	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	2571	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2501	{	2572	{
		2573	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2502	w->wd = -1;	2574	w->wd = -1;
2503	infy_add (EV_A_ w); /* re-add, no matter what */	2575	infy_add (EV_A_ w); /* re-add, no matter what */
2504	}	2576	}
2505		2577
2506	stat_timer_cb (EV_A_ &w->timer, 0);	2578	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2520	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2592	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2521	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2593	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2522	}	2594	}
2523		2595
2524	void inline_size	2596	void inline_size
		2597	check_2625 (EV_P)
		2598	{
		2599	/* kernels < 2.6.25 are borked
		2600	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2601	*/
		2602	struct utsname buf;
		2603	int major, minor, micro;
		2604
		2605	if (uname (&buf))
		2606	return;
		2607
		2608	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2609	return;
		2610
		2611	if (major < 2
		2612	\|\| (major == 2 && minor < 6)
		2613	\|\| (major == 2 && minor == 6 && micro < 25))
		2614	return;
		2615
		2616	fs_2625 = 1;
		2617	}
		2618
		2619	void inline_size
2525	infy_init (EV_P)	2620	infy_init (EV_P)
2526	{	2621	{
2527	if (fs_fd != -2)	2622	if (fs_fd != -2)
2528	return;	2623	return;
		2624
		2625	fs_fd = -1;
		2626
		2627	check_2625 (EV_A);
2529		2628
2530	fs_fd = inotify_init ();	2629	fs_fd = inotify_init ();
2531		2630
2532	if (fs_fd >= 0)	2631	if (fs_fd >= 0)
2533	{	2632	{
…		…
2561	w->wd = -1;	2660	w->wd = -1;
2562		2661
2563	if (fs_fd >= 0)	2662	if (fs_fd >= 0)
2564	infy_add (EV_A_ w); /* re-add, no matter what */	2663	infy_add (EV_A_ w); /* re-add, no matter what */
2565	else	2664	else
2566	ev_timer_start (EV_A_ &w->timer);	2665	ev_timer_again (EV_A_ &w->timer);
2567	}	2666	}
2568
2569	}	2667	}
2570	}	2668	}
2571		2669
		2670	#endif
		2671
		2672	#ifdef _WIN32
		2673	# define EV_LSTAT(p,b) _stati64 (p, b)
		2674	#else
		2675	# define EV_LSTAT(p,b) lstat (p, b)
2572	#endif	2676	#endif
2573		2677
2574	void	2678	void
2575	ev_stat_stat (EV_P_ ev_stat *w)	2679	ev_stat_stat (EV_P_ ev_stat *w)
2576	{	2680	{
…		…
2603	\|\| w->prev.st_atime != w->attr.st_atime	2707	\|\| w->prev.st_atime != w->attr.st_atime
2604	\|\| w->prev.st_mtime != w->attr.st_mtime	2708	\|\| w->prev.st_mtime != w->attr.st_mtime
2605	\|\| w->prev.st_ctime != w->attr.st_ctime	2709	\|\| w->prev.st_ctime != w->attr.st_ctime
2606	) {	2710	) {
2607	#if EV_USE_INOTIFY	2711	#if EV_USE_INOTIFY
		2712	if (fs_fd >= 0)
		2713	{
2608	infy_del (EV_A_ w);	2714	infy_del (EV_A_ w);
2609	infy_add (EV_A_ w);	2715	infy_add (EV_A_ w);
2610	ev_stat_stat (EV_A_ w); /* avoid race... */	2716	ev_stat_stat (EV_A_ w); /* avoid race... */
		2717	}
2611	#endif	2718	#endif
2612		2719
2613	ev_feed_event (EV_A_ w, EV_STAT);	2720	ev_feed_event (EV_A_ w, EV_STAT);
2614	}	2721	}
2615	}	2722	}
…		…
2618	ev_stat_start (EV_P_ ev_stat *w)	2725	ev_stat_start (EV_P_ ev_stat *w)
2619	{	2726	{
2620	if (expect_false (ev_is_active (w)))	2727	if (expect_false (ev_is_active (w)))
2621	return;	2728	return;
2622		2729
2623	/* since we use memcmp, we need to clear any padding data etc. */
2624	memset (&w->prev, 0, sizeof (ev_statdata));
2625	memset (&w->attr, 0, sizeof (ev_statdata));
2626
2627	ev_stat_stat (EV_A_ w);	2730	ev_stat_stat (EV_A_ w);
2628		2731
		2732	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2629	if (w->interval < MIN_STAT_INTERVAL)	2733	w->interval = MIN_STAT_INTERVAL;
2630	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2631		2734
2632	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2735	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2633	ev_set_priority (&w->timer, ev_priority (w));	2736	ev_set_priority (&w->timer, ev_priority (w));
2634		2737
2635	#if EV_USE_INOTIFY	2738	#if EV_USE_INOTIFY
2636	infy_init (EV_A);	2739	infy_init (EV_A);
2637		2740
2638	if (fs_fd >= 0)	2741	if (fs_fd >= 0)
2639	infy_add (EV_A_ w);	2742	infy_add (EV_A_ w);
2640	else	2743	else
2641	#endif	2744	#endif
2642	ev_timer_start (EV_A_ &w->timer);	2745	ev_timer_again (EV_A_ &w->timer);
2643		2746
2644	ev_start (EV_A_ (W)w, 1);	2747	ev_start (EV_A_ (W)w, 1);
2645		2748
2646	EV_FREQUENT_CHECK;	2749	EV_FREQUENT_CHECK;
2647	}	2750	}
…		…
2817	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2920	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2818	}	2921	}
2819	}	2922	}
2820	}	2923	}
2821		2924
		2925	static void
		2926	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2927	{
		2928	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
		2929
		2930	ev_embed_stop (EV_A_ w);
		2931
		2932	{
		2933	struct ev_loop *loop = w->other;
		2934
		2935	ev_loop_fork (EV_A);
		2936	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2937	}
		2938
		2939	ev_embed_start (EV_A_ w);
		2940	}
		2941
2822	#if 0	2942	#if 0
2823	static void	2943	static void
2824	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2944	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2825	{	2945	{
2826	ev_idle_stop (EV_A_ idle);	2946	ev_idle_stop (EV_A_ idle);
…		…
2833	if (expect_false (ev_is_active (w)))	2953	if (expect_false (ev_is_active (w)))
2834	return;	2954	return;
2835		2955
2836	{	2956	{
2837	struct ev_loop *loop = w->other;	2957	struct ev_loop *loop = w->other;
2838	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2958	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2839	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2959	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2840	}	2960	}
2841		2961
2842	EV_FREQUENT_CHECK;	2962	EV_FREQUENT_CHECK;
2843		2963
…		…
2846		2966
2847	ev_prepare_init (&w->prepare, embed_prepare_cb);	2967	ev_prepare_init (&w->prepare, embed_prepare_cb);
2848	ev_set_priority (&w->prepare, EV_MINPRI);	2968	ev_set_priority (&w->prepare, EV_MINPRI);
2849	ev_prepare_start (EV_A_ &w->prepare);	2969	ev_prepare_start (EV_A_ &w->prepare);
2850		2970
		2971	ev_fork_init (&w->fork, embed_fork_cb);
		2972	ev_fork_start (EV_A_ &w->fork);
		2973
2851	/ev_idle_init (&w->idle, e,bed_idle_cb);/	2974	/ev_idle_init (&w->idle, e,bed_idle_cb);/
2852		2975
2853	ev_start (EV_A_ (W)w, 1);	2976	ev_start (EV_A_ (W)w, 1);
2854		2977
2855	EV_FREQUENT_CHECK;	2978	EV_FREQUENT_CHECK;
…		…
2862	if (expect_false (!ev_is_active (w)))	2985	if (expect_false (!ev_is_active (w)))
2863	return;	2986	return;
2864		2987
2865	EV_FREQUENT_CHECK;	2988	EV_FREQUENT_CHECK;
2866		2989
2867	ev_io_stop (EV_A_ &w->io);	2990	ev_io_stop (EV_A_ &w->io);
2868	ev_prepare_stop (EV_A_ &w->prepare);	2991	ev_prepare_stop (EV_A_ &w->prepare);
2869		2992	ev_fork_stop (EV_A_ &w->fork);
2870	ev_stop (EV_A_ (W)w);
2871		2993
2872	EV_FREQUENT_CHECK;	2994	EV_FREQUENT_CHECK;
2873	}	2995	}
2874	#endif	2996	#endif
2875		2997
…		…
2972	once_cb (EV_P_ struct ev_once *once, int revents)	3094	once_cb (EV_P_ struct ev_once *once, int revents)
2973	{	3095	{
2974	void (cb)(int revents, void arg) = once->cb;	3096	void (cb)(int revents, void arg) = once->cb;
2975	void *arg = once->arg;	3097	void *arg = once->arg;
2976		3098
2977	ev_io_stop (EV_A_ &once->io);	3099	ev_io_stop (EV_A_ &once->io);
2978	ev_timer_stop (EV_A_ &once->to);	3100	ev_timer_stop (EV_A_ &once->to);
2979	ev_free (once);	3101	ev_free (once);
2980		3102
2981	cb (revents, arg);	3103	cb (revents, arg);
2982	}	3104	}
2983		3105
2984	static void	3106	static void
2985	once_cb_io (EV_P_ ev_io *w, int revents)	3107	once_cb_io (EV_P_ ev_io *w, int revents)
2986	{	3108	{
2987	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	3109	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, io));
		3110
		3111	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->to));
2988	}	3112	}
2989		3113
2990	static void	3114	static void
2991	once_cb_to (EV_P_ ev_timer *w, int revents)	3115	once_cb_to (EV_P_ ev_timer *w, int revents)
2992	{	3116	{
2993	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	3117	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, to));
		3118
		3119	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->io));
2994	}	3120	}
2995		3121
2996	void	3122	void
2997	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	3123	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
2998	{	3124	{

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.253 by root, Sat May 31 03:13:27 2008 UTC vs. Revision 1.279 by root, Fri Feb 6 20:17:43 2009 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.253 by root, Sat May 31 03:13:27 2008 UTC vs.
Revision 1.279 by root, Fri Feb 6 20:17:43 2009 UTC