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

Comparing libev/ev.c (file contents):
Revision 1.303 by root, Sun Jul 19 01:36:34 2009 UTC vs.
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
110	# define EV_USE_EPOLL 0	110	# define EV_USE_EPOLL 0
111	# endif	111	# endif
112	# endif	112	# endif
113		113
114	# ifndef EV_USE_KQUEUE	114	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE 1
117	# else	117	# else
118	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
119	# endif	119	# endif
120	# endif	120	# endif
…		…
153		153
154	#endif	154	#endif
155		155
156	#include <math.h>	156	#include <math.h>
157	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
158	#include <fcntl.h>	159	#include <fcntl.h>
159	#include <stddef.h>	160	#include <stddef.h>
160		161
161	#include <stdio.h>	162	#include <stdio.h>
162		163
163	#include <assert.h>	164	#include <assert.h>
164	#include <errno.h>	165	#include <errno.h>
165	#include <sys/types.h>	166	#include <sys/types.h>
166	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
167		169
168	#include <signal.h>	170	#include <signal.h>
169		171
170	#ifdef EV_H	172	#ifdef EV_H
171	# include EV_H	173	# include EV_H
…		…
186	# endif	188	# endif
187	#endif	189	#endif
188		190
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	191	/* this block tries to deduce configuration from header-defined symbols and defaults */
190		192
		193	/* try to deduce the maximum number of signals on this platform */
		194	#if defined (EV_NSIG)
		195	/* use what's provided */
		196	#elif defined (NSIG)
		197	# define EV_NSIG (NSIG)
		198	#elif defined(_NSIG)
		199	# define EV_NSIG (_NSIG)
		200	#elif defined (SIGMAX)
		201	# define EV_NSIG (SIGMAX+1)
		202	#elif defined (SIG_MAX)
		203	# define EV_NSIG (SIG_MAX+1)
		204	#elif defined (_SIG_MAX)
		205	# define EV_NSIG (_SIG_MAX+1)
		206	#elif defined (MAXSIG)
		207	# define EV_NSIG (MAXSIG+1)
		208	#elif defined (MAX_SIG)
		209	# define EV_NSIG (MAX_SIG+1)
		210	#elif defined (SIGARRAYSIZE)
		211	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		212	#elif defined (_sys_nsig)
		213	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		214	#else
		215	# error "unable to find value for NSIG, please report"
		216	/* to make it compile regardless, just remove the above line */
		217	# define EV_NSIG 65
		218	#endif
		219
191	#ifndef EV_USE_CLOCK_SYSCALL	220	#ifndef EV_USE_CLOCK_SYSCALL
192	# if __linux && __GLIBC__ >= 2	221	# if __linux && __GLIBC__ >= 2
193	# define EV_USE_CLOCK_SYSCALL 1	222	# define EV_USE_CLOCK_SYSCALL 1
194	# else	223	# else
195	# define EV_USE_CLOCK_SYSCALL 0	224	# define EV_USE_CLOCK_SYSCALL 0
…		…
275	# define EV_USE_EVENTFD 0	304	# define EV_USE_EVENTFD 0
276	# endif	305	# endif
277	#endif	306	#endif
278		307
279	#ifndef EV_USE_SIGNALFD	308	#ifndef EV_USE_SIGNALFD
280	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))	309	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
281	# define EV_USE_SIGNALFD 1	310	# define EV_USE_SIGNALFD 1
282	# else	311	# else
283	# define EV_USE_SIGNALFD 0	312	# define EV_USE_SIGNALFD 0
284	# endif	313	# endif
285	#endif	314	#endif
…		…
316	# endif	345	# endif
317	#endif	346	#endif
318		347
319	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	348	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
320		349
		350	#ifdef _AIX
		351	/* AIX has a completely broken poll.h header */
		352	# undef EV_USE_POLL
		353	# define EV_USE_POLL 0
		354	#endif
		355
321	#ifndef CLOCK_MONOTONIC	356	#ifndef CLOCK_MONOTONIC
322	# undef EV_USE_MONOTONIC	357	# undef EV_USE_MONOTONIC
323	# define EV_USE_MONOTONIC 0	358	# define EV_USE_MONOTONIC 0
324	#endif	359	#endif
325		360
…		…
359	# include <stdint.h>	394	# include <stdint.h>
360	# ifndef EFD_NONBLOCK	395	# ifndef EFD_NONBLOCK
361	# define EFD_NONBLOCK O_NONBLOCK	396	# define EFD_NONBLOCK O_NONBLOCK
362	# endif	397	# endif
363	# ifndef EFD_CLOEXEC	398	# ifndef EFD_CLOEXEC
		399	# ifdef O_CLOEXEC
364	# define EFD_CLOEXEC O_CLOEXEC	400	# define EFD_CLOEXEC O_CLOEXEC
		401	# else
		402	# define EFD_CLOEXEC 02000000
		403	# endif
365	# endif	404	# endif
366	# ifdef __cplusplus	405	# ifdef __cplusplus
367	extern "C" {	406	extern "C" {
368	# endif	407	# endif
369	int eventfd (unsigned int initval, int flags);	408	int (eventfd) (unsigned int initval, int flags);
370	# ifdef __cplusplus	409	# ifdef __cplusplus
371	}	410	}
372	# endif	411	# endif
373	#endif	412	#endif
374		413
375	#if EV_USE_SIGNALFD	414	#if EV_USE_SIGNALFD
376	# include <sys/signalfd.h>	415	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		416	# include <stdint.h>
		417	# ifndef SFD_NONBLOCK
		418	# define SFD_NONBLOCK O_NONBLOCK
377	#endif	419	# endif
		420	# ifndef SFD_CLOEXEC
		421	# ifdef O_CLOEXEC
		422	# define SFD_CLOEXEC O_CLOEXEC
		423	# else
		424	# define SFD_CLOEXEC 02000000
		425	# endif
		426	# endif
		427	# ifdef __cplusplus
		428	extern "C" {
		429	# endif
		430	int signalfd (int fd, const sigset_t *mask, int flags);
		431
		432	struct signalfd_siginfo
		433	{
		434	uint32_t ssi_signo;
		435	char pad[128 - sizeof (uint32_t)];
		436	};
		437	# ifdef __cplusplus
		438	}
		439	# endif
		440	#endif
		441
378		442
379	/**/	443	/**/
380		444
381	#if EV_VERIFY >= 3	445	#if EV_VERIFY >= 3
382	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	446	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
394	*/	458	*/
395	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	459	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
396		460
397	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	461	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
398	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	462	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
399	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
400		463
401	#if __GNUC__ >= 4	464	#if __GNUC__ >= 4
402	# define expect(expr,value) __builtin_expect ((expr),(value))	465	# define expect(expr,value) __builtin_expect ((expr),(value))
403	# define noinline __attribute__ ((noinline))	466	# define noinline __attribute__ ((noinline))
404	#else	467	#else
…		…
445		508
446	#if EV_USE_MONOTONIC	509	#if EV_USE_MONOTONIC
447	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	510	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
448	#endif	511	#endif
449		512
		513	#ifndef EV_FD_TO_WIN32_HANDLE
		514	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		515	#endif
		516	#ifndef EV_WIN32_HANDLE_TO_FD
		517	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		518	#endif
		519	#ifndef EV_WIN32_CLOSE_FD
		520	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		521	#endif
		522
450	#ifdef _WIN32	523	#ifdef _WIN32
451	# include "ev_win32.c"	524	# include "ev_win32.c"
452	#endif	525	#endif
453		526
454	/*****************************************************************************/	527	/*****************************************************************************/
…		…
469		542
470	if (syserr_cb)	543	if (syserr_cb)
471	syserr_cb (msg);	544	syserr_cb (msg);
472	else	545	else
473	{	546	{
		547	#if EV_AVOID_STDIO
		548	write (STDERR_FILENO, msg, strlen (msg));
		549	write (STDERR_FILENO, ": ", 2);
		550	msg = strerror (errno);
		551	write (STDERR_FILENO, msg, strlen (msg));
		552	write (STDERR_FILENO, "\n", 1);
		553	#else
474	perror (msg);	554	perror (msg);
		555	#endif
475	abort ();	556	abort ();
476	}	557	}
477	}	558	}
478		559
479	static void *	560	static void *
…		…
504	{	585	{
505	ptr = alloc (ptr, size);	586	ptr = alloc (ptr, size);
506		587
507	if (!ptr && size)	588	if (!ptr && size)
508	{	589	{
		590	#if EV_AVOID_STDIO
		591	write (STDERR_FILENO, "libev: memory allocation failed, aborting.",
		592	sizeof ("libev: memory allocation failed, aborting.") - 1);
		593	#else
509	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	594	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		595	#endif
510	abort ();	596	abort ();
511	}	597	}
512		598
513	return ptr;	599	return ptr;
514	}	600	}
…		…
845		931
846	#if EV_SELECT_IS_WINSOCKET	932	#if EV_SELECT_IS_WINSOCKET
847	if (events)	933	if (events)
848	{	934	{
849	unsigned long arg;	935	unsigned long arg;
850	#ifdef EV_FD_TO_WIN32_HANDLE
851	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	936	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
852	#else
853	anfd->handle = _get_osfhandle (fd);
854	#endif
855	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	937	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
856	}	938	}
857	#endif	939	#endif
858		940
859	{	941	{
…		…
902	/* check whether the given fd is atcually valid, for error recovery */	984	/* check whether the given fd is atcually valid, for error recovery */
903	inline_size int	985	inline_size int
904	fd_valid (int fd)	986	fd_valid (int fd)
905	{	987	{
906	#ifdef _WIN32	988	#ifdef _WIN32
907	return _get_osfhandle (fd) != -1;	989	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
908	#else	990	#else
909	return fcntl (fd, F_GETFD) != -1;	991	return fcntl (fd, F_GETFD) != -1;
910	#endif	992	#endif
911	}	993	}
912		994
…		…
930		1012
931	for (fd = anfdmax; fd--; )	1013	for (fd = anfdmax; fd--; )
932	if (anfds [fd].events)	1014	if (anfds [fd].events)
933	{	1015	{
934	fd_kill (EV_A_ fd);	1016	fd_kill (EV_A_ fd);
935	return;	1017	break;
936	}	1018	}
937	}	1019	}
938		1020
939	/* usually called after fork if backend needs to re-arm all fds from scratch */	1021	/* usually called after fork if backend needs to re-arm all fds from scratch */
940	static void noinline	1022	static void noinline
…		…
1030		1112
1031	for (;;)	1113	for (;;)
1032	{	1114	{
1033	int c = k << 1;	1115	int c = k << 1;
1034		1116
1035	if (c > N + HEAP0 - 1)	1117	if (c >= N + HEAP0)
1036	break;	1118	break;
1037		1119
1038	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1120	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1039	? 1 : 0;	1121	? 1 : 0;
1040		1122
…		…
1076		1158
1077	/* move an element suitably so it is in a correct place */	1159	/* move an element suitably so it is in a correct place */
1078	inline_size void	1160	inline_size void
1079	adjustheap (ANHE *heap, int N, int k)	1161	adjustheap (ANHE *heap, int N, int k)
1080	{	1162	{
1081	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1163	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1082	upheap (heap, k);	1164	upheap (heap, k);
1083	else	1165	else
1084	downheap (heap, N, k);	1166	downheap (heap, N, k);
1085	}	1167	}
1086		1168
…		…
1099	/*****************************************************************************/	1181	/*****************************************************************************/
1100		1182
1101	/* associate signal watchers to a signal signal */	1183	/* associate signal watchers to a signal signal */
1102	typedef struct	1184	typedef struct
1103	{	1185	{
		1186	EV_ATOMIC_T pending;
		1187	#if EV_MULTIPLICITY
		1188	EV_P;
		1189	#endif
1104	WL head;	1190	WL head;
1105	EV_ATOMIC_T gotsig;
1106	} ANSIG;	1191	} ANSIG;
1107		1192
1108	static ANSIG *signals;	1193	static ANSIG signals [EV_NSIG - 1];
1109	static int signalmax;
1110
1111	static EV_ATOMIC_T gotsig;
1112		1194
1113	/*****************************************************************************/	1195	/*****************************************************************************/
1114		1196
1115	/* used to prepare libev internal fd's */	1197	/* used to prepare libev internal fd's */
1116	/* this is not fork-safe */	1198	/* this is not fork-safe */
1117	inline_speed void	1199	inline_speed void
1118	fd_intern (int fd)	1200	fd_intern (int fd)
1119	{	1201	{
1120	#ifdef _WIN32	1202	#ifdef _WIN32
1121	unsigned long arg = 1;	1203	unsigned long arg = 1;
1122	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1204	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1123	#else	1205	#else
1124	fcntl (fd, F_SETFD, FD_CLOEXEC);	1206	fcntl (fd, F_SETFD, FD_CLOEXEC);
1125	fcntl (fd, F_SETFL, O_NONBLOCK);	1207	fcntl (fd, F_SETFL, O_NONBLOCK);
1126	#endif	1208	#endif
1127	}	1209	}
…		…
1184	/* called whenever the libev signal pipe */	1266	/* called whenever the libev signal pipe */
1185	/* got some events (signal, async) */	1267	/* got some events (signal, async) */
1186	static void	1268	static void
1187	pipecb (EV_P_ ev_io *iow, int revents)	1269	pipecb (EV_P_ ev_io *iow, int revents)
1188	{	1270	{
		1271	int i;
		1272
1189	#if EV_USE_EVENTFD	1273	#if EV_USE_EVENTFD
1190	if (evfd >= 0)	1274	if (evfd >= 0)
1191	{	1275	{
1192	uint64_t counter;	1276	uint64_t counter;
1193	read (evfd, &counter, sizeof (uint64_t));	1277	read (evfd, &counter, sizeof (uint64_t));
…		…
1197	{	1281	{
1198	char dummy;	1282	char dummy;
1199	read (evpipe [0], &dummy, 1);	1283	read (evpipe [0], &dummy, 1);
1200	}	1284	}
1201		1285
1202	if (gotsig && ev_is_default_loop (EV_A))	1286	if (sig_pending)
1203	{	1287	{
1204	int signum;	1288	sig_pending = 0;
1205	gotsig = 0;
1206		1289
1207	for (signum = signalmax; signum--; )	1290	for (i = EV_NSIG - 1; i--; )
1208	if (signals [signum].gotsig)	1291	if (expect_false (signals [i].pending))
1209	ev_feed_signal_event (EV_A_ signum + 1);	1292	ev_feed_signal_event (EV_A_ i + 1);
1210	}	1293	}
1211		1294
1212	#if EV_ASYNC_ENABLE	1295	#if EV_ASYNC_ENABLE
1213	if (gotasync)	1296	if (async_pending)
1214	{	1297	{
1215	int i;	1298	async_pending = 0;
1216	gotasync = 0;
1217		1299
1218	for (i = asynccnt; i--; )	1300	for (i = asynccnt; i--; )
1219	if (asyncs [i]->sent)	1301	if (asyncs [i]->sent)
1220	{	1302	{
1221	asyncs [i]->sent = 0;	1303	asyncs [i]->sent = 0;
…		…
1229		1311
1230	static void	1312	static void
1231	ev_sighandler (int signum)	1313	ev_sighandler (int signum)
1232	{	1314	{
1233	#if EV_MULTIPLICITY	1315	#if EV_MULTIPLICITY
1234	struct ev_loop *loop = &default_loop_struct;	1316	EV_P = signals [signum - 1].loop;
1235	#endif	1317	#endif
1236		1318
1237	#if _WIN32	1319	#ifdef _WIN32
1238	signal (signum, ev_sighandler);	1320	signal (signum, ev_sighandler);
1239	#endif	1321	#endif
1240		1322
1241	signals [signum - 1].gotsig = 1;	1323	signals [signum - 1].pending = 1;
1242	evpipe_write (EV_A_ &gotsig);	1324	evpipe_write (EV_A_ &sig_pending);
1243	}	1325	}
1244		1326
1245	void noinline	1327	void noinline
1246	ev_feed_signal_event (EV_P_ int signum)	1328	ev_feed_signal_event (EV_P_ int signum)
1247	{	1329	{
1248	WL w;	1330	WL w;
1249		1331
		1332	if (expect_false (signum <= 0 \|\| signum > EV_NSIG))
		1333	return;
		1334
		1335	--signum;
		1336
1250	#if EV_MULTIPLICITY	1337	#if EV_MULTIPLICITY
1251	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1338	/* it is permissible to try to feed a signal to the wrong loop */
1252	#endif	1339	/* or, likely more useful, feeding a signal nobody is waiting for */
1253		1340
1254	--signum;	1341	if (expect_false (signals [signum].loop != EV_A))
1255
1256	if (signum < 0 \|\| signum >= signalmax)
1257	return;	1342	return;
		1343	#endif
1258		1344
1259	signals [signum].gotsig = 0;	1345	signals [signum].pending = 0;
1260		1346
1261	for (w = signals [signum].head; w; w = w->next)	1347	for (w = signals [signum].head; w; w = w->next)
1262	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1348	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1263	}	1349	}
1264		1350
1265	#if EV_USE_SIGNALFD	1351	#if EV_USE_SIGNALFD
1266	static void	1352	static void
1267	sigfdcb (EV_P_ ev_io *iow, int revents)	1353	sigfdcb (EV_P_ ev_io *iow, int revents)
1268	{	1354	{
1269	struct signalfd_siginfo si[4], *sip;	1355	struct signalfd_siginfo si[2], sip; / these structs are big */
1270		1356
1271	for (;;)	1357	for (;;)
1272	{	1358	{
1273	ssize_t res = read (sigfd, si, sizeof (si));	1359	ssize_t res = read (sigfd, si, sizeof (si));
1274		1360
…		…
1508	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1594	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1509	have_monotonic = 1;	1595	have_monotonic = 1;
1510	}	1596	}
1511	#endif	1597	#endif
1512		1598
		1599	/* pid check not overridable via env */
		1600	#ifndef _WIN32
		1601	if (flags & EVFLAG_FORKCHECK)
		1602	curpid = getpid ();
		1603	#endif
		1604
		1605	if (!(flags & EVFLAG_NOENV)
		1606	&& !enable_secure ()
		1607	&& getenv ("LIBEV_FLAGS"))
		1608	flags = atoi (getenv ("LIBEV_FLAGS"));
		1609
1513	ev_rt_now = ev_time ();	1610	ev_rt_now = ev_time ();
1514	mn_now = get_clock ();	1611	mn_now = get_clock ();
1515	now_floor = mn_now;	1612	now_floor = mn_now;
1516	rtmn_diff = ev_rt_now - mn_now;	1613	rtmn_diff = ev_rt_now - mn_now;
1517	#if EV_MINIMAL < 2	1614	#if EV_MINIMAL < 2
…		…
1520		1617
1521	io_blocktime = 0.;	1618	io_blocktime = 0.;
1522	timeout_blocktime = 0.;	1619	timeout_blocktime = 0.;
1523	backend = 0;	1620	backend = 0;
1524	backend_fd = -1;	1621	backend_fd = -1;
1525	gotasync = 0;	1622	sig_pending = 0;
		1623	#if EV_ASYNC_ENABLE
		1624	async_pending = 0;
		1625	#endif
1526	#if EV_USE_INOTIFY	1626	#if EV_USE_INOTIFY
1527	fs_fd = -2;	1627	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1528	#endif	1628	#endif
1529	#if EV_USE_SIGNALFD	1629	#if EV_USE_SIGNALFD
1530	sigfd = -2;	1630	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1531	#endif	1631	#endif
1532
1533	/* pid check not overridable via env */
1534	#ifndef _WIN32
1535	if (flags & EVFLAG_FORKCHECK)
1536	curpid = getpid ();
1537	#endif
1538
1539	if (!(flags & EVFLAG_NOENV)
1540	&& !enable_secure ()
1541	&& getenv ("LIBEV_FLAGS"))
1542	flags = atoi (getenv ("LIBEV_FLAGS"));
1543		1632
1544	if (!(flags & 0x0000ffffU))	1633	if (!(flags & 0x0000ffffU))
1545	flags \|= ev_recommended_backends ();	1634	flags \|= ev_recommended_backends ();
1546		1635
1547	#if EV_USE_PORT	1636	#if EV_USE_PORT
…		…
1583	close (evfd);	1672	close (evfd);
1584	#endif	1673	#endif
1585		1674
1586	if (evpipe [0] >= 0)	1675	if (evpipe [0] >= 0)
1587	{	1676	{
1588	close (evpipe [0]);	1677	EV_WIN32_CLOSE_FD (evpipe [0]);
1589	close (evpipe [1]);	1678	EV_WIN32_CLOSE_FD (evpipe [1]);
1590	}	1679	}
1591	}	1680	}
1592		1681
1593	#if EV_USE_SIGNALFD	1682	#if EV_USE_SIGNALFD
1594	if (ev_is_active (&sigfd_w))	1683	if (ev_is_active (&sigfd_w))
1595	{
1596	/ev_ref (EV_A);/
1597	/ev_io_stop (EV_A_ &sigfd_w);/
1598
1599	close (sigfd);	1684	close (sigfd);
1600	}
1601	#endif	1685	#endif
1602		1686
1603	#if EV_USE_INOTIFY	1687	#if EV_USE_INOTIFY
1604	if (fs_fd >= 0)	1688	if (fs_fd >= 0)
1605	close (fs_fd);	1689	close (fs_fd);
…		…
1630	#if EV_IDLE_ENABLE	1714	#if EV_IDLE_ENABLE
1631	array_free (idle, [i]);	1715	array_free (idle, [i]);
1632	#endif	1716	#endif
1633	}	1717	}
1634		1718
1635	ev_free (anfds); anfdmax = 0;	1719	ev_free (anfds); anfds = 0; anfdmax = 0;
1636		1720
1637	/* have to use the microsoft-never-gets-it-right macro */	1721	/* have to use the microsoft-never-gets-it-right macro */
1638	array_free (rfeed, EMPTY);	1722	array_free (rfeed, EMPTY);
1639	array_free (fdchange, EMPTY);	1723	array_free (fdchange, EMPTY);
1640	array_free (timer, EMPTY);	1724	array_free (timer, EMPTY);
…		…
1675		1759
1676	if (ev_is_active (&pipe_w))	1760	if (ev_is_active (&pipe_w))
1677	{	1761	{
1678	/* this "locks" the handlers against writing to the pipe */	1762	/* this "locks" the handlers against writing to the pipe */
1679	/* while we modify the fd vars */	1763	/* while we modify the fd vars */
1680	gotsig = 1;	1764	sig_pending = 1;
1681	#if EV_ASYNC_ENABLE	1765	#if EV_ASYNC_ENABLE
1682	gotasync = 1;	1766	async_pending = 1;
1683	#endif	1767	#endif
1684		1768
1685	ev_ref (EV_A);	1769	ev_ref (EV_A);
1686	ev_io_stop (EV_A_ &pipe_w);	1770	ev_io_stop (EV_A_ &pipe_w);
1687		1771
…		…
1690	close (evfd);	1774	close (evfd);
1691	#endif	1775	#endif
1692		1776
1693	if (evpipe [0] >= 0)	1777	if (evpipe [0] >= 0)
1694	{	1778	{
1695	close (evpipe [0]);	1779	EV_WIN32_CLOSE_FD (evpipe [0]);
1696	close (evpipe [1]);	1780	EV_WIN32_CLOSE_FD (evpipe [1]);
1697	}	1781	}
1698		1782
1699	evpipe_init (EV_A);	1783	evpipe_init (EV_A);
1700	/* now iterate over everything, in case we missed something */	1784	/* now iterate over everything, in case we missed something */
1701	pipecb (EV_A_ &pipe_w, EV_READ);	1785	pipecb (EV_A_ &pipe_w, EV_READ);
…		…
1707	#if EV_MULTIPLICITY	1791	#if EV_MULTIPLICITY
1708		1792
1709	struct ev_loop *	1793	struct ev_loop *
1710	ev_loop_new (unsigned int flags)	1794	ev_loop_new (unsigned int flags)
1711	{	1795	{
1712	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1796	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1713		1797
1714	memset (loop, 0, sizeof (struct ev_loop));	1798	memset (EV_A, 0, sizeof (struct ev_loop));
1715	loop_init (EV_A_ flags);	1799	loop_init (EV_A_ flags);
1716		1800
1717	if (ev_backend (EV_A))	1801	if (ev_backend (EV_A))
1718	return loop;	1802	return EV_A;
1719		1803
1720	return 0;	1804	return 0;
1721	}	1805	}
1722		1806
1723	void	1807	void
…		…
1827	assert (checkmax >= checkcnt);	1911	assert (checkmax >= checkcnt);
1828	array_verify (EV_A_ (W *)checks, checkcnt);	1912	array_verify (EV_A_ (W *)checks, checkcnt);
1829		1913
1830	# if 0	1914	# if 0
1831	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1915	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
1832	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1916	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1833	# endif	1917	# endif
1834	#endif	1918	#endif
1835	}	1919	}
1836	#endif	1920	#endif
1837		1921
…		…
1844	#endif	1928	#endif
1845	{	1929	{
1846	if (!ev_default_loop_ptr)	1930	if (!ev_default_loop_ptr)
1847	{	1931	{
1848	#if EV_MULTIPLICITY	1932	#if EV_MULTIPLICITY
1849	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1933	EV_P = ev_default_loop_ptr = &default_loop_struct;
1850	#else	1934	#else
1851	ev_default_loop_ptr = 1;	1935	ev_default_loop_ptr = 1;
1852	#endif	1936	#endif
1853		1937
1854	loop_init (EV_A_ flags);	1938	loop_init (EV_A_ flags);
…		…
1871		1955
1872	void	1956	void
1873	ev_default_destroy (void)	1957	ev_default_destroy (void)
1874	{	1958	{
1875	#if EV_MULTIPLICITY	1959	#if EV_MULTIPLICITY
1876	struct ev_loop *loop = ev_default_loop_ptr;	1960	EV_P = ev_default_loop_ptr;
1877	#endif	1961	#endif
1878		1962
1879	ev_default_loop_ptr = 0;	1963	ev_default_loop_ptr = 0;
1880		1964
1881	#ifndef _WIN32	1965	#ifndef _WIN32
…		…
1888		1972
1889	void	1973	void
1890	ev_default_fork (void)	1974	ev_default_fork (void)
1891	{	1975	{
1892	#if EV_MULTIPLICITY	1976	#if EV_MULTIPLICITY
1893	struct ev_loop *loop = ev_default_loop_ptr;	1977	EV_P = ev_default_loop_ptr;
1894	#endif	1978	#endif
1895		1979
1896	postfork = 1; /* must be in line with ev_loop_fork */	1980	postfork = 1; /* must be in line with ev_loop_fork */
1897	}	1981	}
1898		1982
…		…
2093	ANHE_at_cache (*he);	2177	ANHE_at_cache (*he);
2094	}	2178	}
2095	}	2179	}
2096		2180
2097	/* fetch new monotonic and realtime times from the kernel */	2181	/* fetch new monotonic and realtime times from the kernel */
2098	/* also detetc if there was a timejump, and act accordingly */	2182	/* also detect if there was a timejump, and act accordingly */
2099	inline_speed void	2183	inline_speed void
2100	time_update (EV_P_ ev_tstamp max_block)	2184	time_update (EV_P_ ev_tstamp max_block)
2101	{	2185	{
2102	#if EV_USE_MONOTONIC	2186	#if EV_USE_MONOTONIC
2103	if (expect_true (have_monotonic))	2187	if (expect_true (have_monotonic))
…		…
2364	inline_size void	2448	inline_size void
2365	wlist_del (WL *head, WL elem)	2449	wlist_del (WL *head, WL elem)
2366	{	2450	{
2367	while (*head)	2451	while (*head)
2368	{	2452	{
2369	if (*head == elem)	2453	if (expect_true (*head == elem))
2370	{	2454	{
2371	*head = elem->next;	2455	*head = elem->next;
2372	return;	2456	break;
2373	}	2457	}
2374		2458
2375	head = &(*head)->next;	2459	head = &(*head)->next;
2376	}	2460	}
2377	}	2461	}
…		…
2437		2521
2438	if (expect_false (ev_is_active (w)))	2522	if (expect_false (ev_is_active (w)))
2439	return;	2523	return;
2440		2524
2441	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2525	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2442	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));	2526	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2443		2527
2444	EV_FREQUENT_CHECK;	2528	EV_FREQUENT_CHECK;
2445		2529
2446	ev_start (EV_A_ (W)w, 1);	2530	ev_start (EV_A_ (W)w, 1);
2447	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2531	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2517	timers [active] = timers [timercnt + HEAP0];	2601	timers [active] = timers [timercnt + HEAP0];
2518	adjustheap (timers, timercnt, active);	2602	adjustheap (timers, timercnt, active);
2519	}	2603	}
2520	}	2604	}
2521		2605
2522	EV_FREQUENT_CHECK;
2523
2524	ev_at (w) -= mn_now;	2606	ev_at (w) -= mn_now;
2525		2607
2526	ev_stop (EV_A_ (W)w);	2608	ev_stop (EV_A_ (W)w);
		2609
		2610	EV_FREQUENT_CHECK;
2527	}	2611	}
2528		2612
2529	void noinline	2613	void noinline
2530	ev_timer_again (EV_P_ ev_timer *w)	2614	ev_timer_again (EV_P_ ev_timer *w)
2531	{	2615	{
…		…
2610	periodics [active] = periodics [periodiccnt + HEAP0];	2694	periodics [active] = periodics [periodiccnt + HEAP0];
2611	adjustheap (periodics, periodiccnt, active);	2695	adjustheap (periodics, periodiccnt, active);
2612	}	2696	}
2613	}	2697	}
2614		2698
2615	EV_FREQUENT_CHECK;
2616
2617	ev_stop (EV_A_ (W)w);	2699	ev_stop (EV_A_ (W)w);
		2700
		2701	EV_FREQUENT_CHECK;
2618	}	2702	}
2619		2703
2620	void noinline	2704	void noinline
2621	ev_periodic_again (EV_P_ ev_periodic *w)	2705	ev_periodic_again (EV_P_ ev_periodic *w)
2622	{	2706	{
…		…
2631	#endif	2715	#endif
2632		2716
2633	void noinline	2717	void noinline
2634	ev_signal_start (EV_P_ ev_signal *w)	2718	ev_signal_start (EV_P_ ev_signal *w)
2635	{	2719	{
2636	#if EV_MULTIPLICITY
2637	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2638	#endif
2639	if (expect_false (ev_is_active (w)))	2720	if (expect_false (ev_is_active (w)))
2640	return;	2721	return;
2641		2722
2642	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2723	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
		2724
		2725	#if EV_MULTIPLICITY
		2726	assert (("libev: a signal must not be attached to two different loops",
		2727	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));
		2728
		2729	signals [w->signum - 1].loop = EV_A;
		2730	#endif
2643		2731
2644	EV_FREQUENT_CHECK;	2732	EV_FREQUENT_CHECK;
2645		2733
2646	#if EV_USE_SIGNALFD	2734	#if EV_USE_SIGNALFD
2647	if (sigfd == -2)	2735	if (sigfd == -2)
…		…
2669	sigaddset (&sigfd_set, w->signum);	2757	sigaddset (&sigfd_set, w->signum);
2670	sigprocmask (SIG_BLOCK, &sigfd_set, 0);	2758	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2671		2759
2672	signalfd (sigfd, &sigfd_set, 0);	2760	signalfd (sigfd, &sigfd_set, 0);
2673	}	2761	}
2674	else
2675	#endif	2762	#endif
2676	evpipe_init (EV_A);
2677
2678	{
2679	#ifndef _WIN32
2680	sigset_t full, prev;
2681	sigfillset (&full);
2682	sigprocmask (SIG_SETMASK, &full, &prev);
2683	#endif
2684
2685	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2686
2687	#ifndef _WIN32
2688	if (sigfd < 0)/TODO/
2689	sigdelset (&prev, w->signum);
2690	sigprocmask (SIG_SETMASK, &prev, 0);
2691	#endif
2692	}
2693		2763
2694	ev_start (EV_A_ (W)w, 1);	2764	ev_start (EV_A_ (W)w, 1);
2695	wlist_add (&signals [w->signum - 1].head, (WL)w);	2765	wlist_add (&signals [w->signum - 1].head, (WL)w);
2696		2766
2697	if (!((WL)w)->next)	2767	if (!((WL)w)->next)
		2768	# if EV_USE_SIGNALFD
		2769	if (sigfd < 0) /TODO/
		2770	# endif
2698	{	2771	{
2699	#if _WIN32	2772	# ifdef _WIN32
		2773	evpipe_init (EV_A);
		2774
2700	signal (w->signum, ev_sighandler);	2775	signal (w->signum, ev_sighandler);
2701	#else	2776	# else
2702	if (sigfd < 0) /TODO/
2703	{
2704	struct sigaction sa = { };	2777	struct sigaction sa;
		2778
		2779	evpipe_init (EV_A);
		2780
2705	sa.sa_handler = ev_sighandler;	2781	sa.sa_handler = ev_sighandler;
2706	sigfillset (&sa.sa_mask);	2782	sigfillset (&sa.sa_mask);
2707	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2783	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2708	sigaction (w->signum, &sa, 0);	2784	sigaction (w->signum, &sa, 0);
		2785
		2786	sigemptyset (&sa.sa_mask);
		2787	sigaddset (&sa.sa_mask, w->signum);
		2788	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2789	#endif
2709	}	2790	}
2710	#endif
2711	}
2712		2791
2713	EV_FREQUENT_CHECK;	2792	EV_FREQUENT_CHECK;
2714	}	2793	}
2715		2794
2716	void noinline	2795	void noinline
…		…
2724		2803
2725	wlist_del (&signals [w->signum - 1].head, (WL)w);	2804	wlist_del (&signals [w->signum - 1].head, (WL)w);
2726	ev_stop (EV_A_ (W)w);	2805	ev_stop (EV_A_ (W)w);
2727		2806
2728	if (!signals [w->signum - 1].head)	2807	if (!signals [w->signum - 1].head)
		2808	{
		2809	#if EV_MULTIPLICITY
		2810	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2811	#endif
2729	#if EV_USE_SIGNALFD	2812	#if EV_USE_SIGNALFD
2730	if (sigfd >= 0)	2813	if (sigfd >= 0)
2731	{	2814	{
2732	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2815	sigset_t ss;
		2816
		2817	sigemptyset (&ss);
		2818	sigaddset (&ss, w->signum);
2733	sigdelset (&sigfd_set, w->signum);	2819	sigdelset (&sigfd_set, w->signum);
		2820
2734	signalfd (sigfd, &sigfd_set, 0);	2821	signalfd (sigfd, &sigfd_set, 0);
2735	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2822	sigprocmask (SIG_UNBLOCK, &ss, 0);
2736	/TODO: maybe unblock signal? /
2737	}	2823	}
2738	else	2824	else
2739	#endif	2825	#endif
2740	signal (w->signum, SIG_DFL);	2826	signal (w->signum, SIG_DFL);
		2827	}
2741		2828
2742	EV_FREQUENT_CHECK;	2829	EV_FREQUENT_CHECK;
2743	}	2830	}
2744		2831
2745	void	2832	void
…		…
2786	#define MIN_STAT_INTERVAL 0.1074891	2873	#define MIN_STAT_INTERVAL 0.1074891
2787		2874
2788	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2875	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2789		2876
2790	#if EV_USE_INOTIFY	2877	#if EV_USE_INOTIFY
2791	# define EV_INOTIFY_BUFSIZE 8192	2878
		2879	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2880	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2792		2881
2793	static void noinline	2882	static void noinline
2794	infy_add (EV_P_ ev_stat *w)	2883	infy_add (EV_P_ ev_stat *w)
2795	{	2884	{
2796	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);	2885	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);
2797		2886
2798	if (w->wd < 0)	2887	if (w->wd >= 0)
		2888	{
		2889	struct statfs sfs;
		2890
		2891	/* now local changes will be tracked by inotify, but remote changes won't */
		2892	/* unless the filesystem is known to be local, we therefore still poll */
		2893	/* also do poll on <2.6.25, but with normal frequency */
		2894
		2895	if (!fs_2625)
		2896	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2897	else if (!statfs (w->path, &sfs)
		2898	&& (sfs.f_type == 0x1373 /* devfs */
		2899	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2900	\|\| sfs.f_type == 0x3153464a /* jfs */
		2901	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2902	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2903	\|\| sfs.f_type == 0x58465342 /* xfs */))
		2904	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2905	else
		2906	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2799	{	2907	}
		2908	else
		2909	{
		2910	/* can't use inotify, continue to stat */
2800	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2911	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2801	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2802		2912
2803	/* monitor some parent directory for speedup hints */	2913	/* if path is not there, monitor some parent directory for speedup hints */
2804	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2914	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2805	/* but an efficiency issue only */	2915	/* but an efficiency issue only */
2806	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2916	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2807	{	2917	{
2808	char path [4096];	2918	char path [4096];
…		…
2824	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2934	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2825	}	2935	}
2826	}	2936	}
2827		2937
2828	if (w->wd >= 0)	2938	if (w->wd >= 0)
2829	{
2830	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2939	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2831		2940
2832	/* now local changes will be tracked by inotify, but remote changes won't */	2941	/* now re-arm timer, if required */
2833	/* unless the filesystem it known to be local, we therefore still poll */	2942	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2834	/* also do poll on <2.6.25, but with normal frequency */
2835	struct statfs sfs;
2836
2837	if (fs_2625 && !statfs (w->path, &sfs))
2838	if (sfs.f_type == 0x1373 /* devfs */
2839	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2840	\|\| sfs.f_type == 0x3153464a /* jfs */
2841	\|\| sfs.f_type == 0x52654973 /* reiser3 */
2842	\|\| sfs.f_type == 0x01021994 /* tempfs */
2843	\|\| sfs.f_type == 0x58465342 /* xfs */)
2844	return;
2845
2846	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2847	ev_timer_again (EV_A_ &w->timer);	2943	ev_timer_again (EV_A_ &w->timer);
2848	}	2944	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2849	}	2945	}
2850		2946
2851	static void noinline	2947	static void noinline
2852	infy_del (EV_P_ ev_stat *w)	2948	infy_del (EV_P_ ev_stat *w)
2853	{	2949	{
…		…
2898		2994
2899	static void	2995	static void
2900	infy_cb (EV_P_ ev_io *w, int revents)	2996	infy_cb (EV_P_ ev_io *w, int revents)
2901	{	2997	{
2902	char buf [EV_INOTIFY_BUFSIZE];	2998	char buf [EV_INOTIFY_BUFSIZE];
2903	struct inotify_event ev = (struct inotify_event )buf;
2904	int ofs;	2999	int ofs;
2905	int len = read (fs_fd, buf, sizeof (buf));	3000	int len = read (fs_fd, buf, sizeof (buf));
2906		3001
2907	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3002	for (ofs = 0; ofs < len; )
		3003	{
		3004	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2908	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3005	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3006	ofs += sizeof (struct inotify_event) + ev->len;
		3007	}
		3008	}
		3009
		3010	inline_size unsigned int
		3011	ev_linux_version (void)
		3012	{
		3013	struct utsname buf;
		3014	unsigned int v;
		3015	int i;
		3016	char *p = buf.release;
		3017
		3018	if (uname (&buf))
		3019	return 0;
		3020
		3021	for (i = 3+1; --i; )
		3022	{
		3023	unsigned int c = 0;
		3024
		3025	for (;;)
		3026	{
		3027	if (p >= '0' && p <= '9')
		3028	c = c * 10 + *p++ - '0';
		3029	else
		3030	{
		3031	p += *p == '.';
		3032	break;
		3033	}
		3034	}
		3035
		3036	v = (v << 8) \| c;
		3037	}
		3038
		3039	return v;
2909	}	3040	}
2910		3041
2911	inline_size void	3042	inline_size void
2912	check_2625 (EV_P)	3043	ev_check_2625 (EV_P)
2913	{	3044	{
2914	/* kernels < 2.6.25 are borked	3045	/* kernels < 2.6.25 are borked
2915	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3046	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2916	*/	3047	*/
2917	struct utsname buf;	3048	if (ev_linux_version () < 0x020619)
2918	int major, minor, micro;
2919
2920	if (uname (&buf))
2921	return;	3049	return;
2922		3050
2923	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2924	return;
2925
2926	if (major < 2
2927	\|\| (major == 2 && minor < 6)
2928	\|\| (major == 2 && minor == 6 && micro < 25))
2929	return;
2930
2931	fs_2625 = 1;	3051	fs_2625 = 1;
		3052	}
		3053
		3054	inline_size int
		3055	infy_newfd (void)
		3056	{
		3057	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3058	int fd = inotify_init1 (IN_CLOEXEC \| IN_NONBLOCK);
		3059	if (fd >= 0)
		3060	return fd;
		3061	#endif
		3062	return inotify_init ();
2932	}	3063	}
2933		3064
2934	inline_size void	3065	inline_size void
2935	infy_init (EV_P)	3066	infy_init (EV_P)
2936	{	3067	{
2937	if (fs_fd != -2)	3068	if (fs_fd != -2)
2938	return;	3069	return;
2939		3070
2940	fs_fd = -1;	3071	fs_fd = -1;
2941		3072
2942	check_2625 (EV_A);	3073	ev_check_2625 (EV_A);
2943		3074
2944	fs_fd = inotify_init ();	3075	fs_fd = infy_newfd ();
2945		3076
2946	if (fs_fd >= 0)	3077	if (fs_fd >= 0)
2947	{	3078	{
		3079	fd_intern (fs_fd);
2948	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3080	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2949	ev_set_priority (&fs_w, EV_MAXPRI);	3081	ev_set_priority (&fs_w, EV_MAXPRI);
2950	ev_io_start (EV_A_ &fs_w);	3082	ev_io_start (EV_A_ &fs_w);
		3083	ev_unref (EV_A);
2951	}	3084	}
2952	}	3085	}
2953		3086
2954	inline_size void	3087	inline_size void
2955	infy_fork (EV_P)	3088	infy_fork (EV_P)
…		…
2957	int slot;	3090	int slot;
2958		3091
2959	if (fs_fd < 0)	3092	if (fs_fd < 0)
2960	return;	3093	return;
2961		3094
		3095	ev_ref (EV_A);
		3096	ev_io_stop (EV_A_ &fs_w);
2962	close (fs_fd);	3097	close (fs_fd);
2963	fs_fd = inotify_init ();	3098	fs_fd = infy_newfd ();
		3099
		3100	if (fs_fd >= 0)
		3101	{
		3102	fd_intern (fs_fd);
		3103	ev_io_set (&fs_w, fs_fd, EV_READ);
		3104	ev_io_start (EV_A_ &fs_w);
		3105	ev_unref (EV_A);
		3106	}
2964		3107
2965	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3108	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2966	{	3109	{
2967	WL w_ = fs_hash [slot].head;	3110	WL w_ = fs_hash [slot].head;
2968	fs_hash [slot].head = 0;	3111	fs_hash [slot].head = 0;
…		…
2975	w->wd = -1;	3118	w->wd = -1;
2976		3119
2977	if (fs_fd >= 0)	3120	if (fs_fd >= 0)
2978	infy_add (EV_A_ w); /* re-add, no matter what */	3121	infy_add (EV_A_ w); /* re-add, no matter what */
2979	else	3122	else
		3123	{
		3124	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3125	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2980	ev_timer_again (EV_A_ &w->timer);	3126	ev_timer_again (EV_A_ &w->timer);
		3127	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3128	}
2981	}	3129	}
2982	}	3130	}
2983	}	3131	}
2984		3132
2985	#endif	3133	#endif
…		…
3002	static void noinline	3150	static void noinline
3003	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3151	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3004	{	3152	{
3005	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3153	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
3006		3154
3007	/* we copy this here each the time so that */	3155	ev_statdata prev = w->attr;
3008	/* prev has the old value when the callback gets invoked */
3009	w->prev = w->attr;
3010	ev_stat_stat (EV_A_ w);	3156	ev_stat_stat (EV_A_ w);
3011		3157
3012	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3158	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3013	if (	3159	if (
3014	w->prev.st_dev != w->attr.st_dev	3160	prev.st_dev != w->attr.st_dev
3015	\|\| w->prev.st_ino != w->attr.st_ino	3161	\|\| prev.st_ino != w->attr.st_ino
3016	\|\| w->prev.st_mode != w->attr.st_mode	3162	\|\| prev.st_mode != w->attr.st_mode
3017	\|\| w->prev.st_nlink != w->attr.st_nlink	3163	\|\| prev.st_nlink != w->attr.st_nlink
3018	\|\| w->prev.st_uid != w->attr.st_uid	3164	\|\| prev.st_uid != w->attr.st_uid
3019	\|\| w->prev.st_gid != w->attr.st_gid	3165	\|\| prev.st_gid != w->attr.st_gid
3020	\|\| w->prev.st_rdev != w->attr.st_rdev	3166	\|\| prev.st_rdev != w->attr.st_rdev
3021	\|\| w->prev.st_size != w->attr.st_size	3167	\|\| prev.st_size != w->attr.st_size
3022	\|\| w->prev.st_atime != w->attr.st_atime	3168	\|\| prev.st_atime != w->attr.st_atime
3023	\|\| w->prev.st_mtime != w->attr.st_mtime	3169	\|\| prev.st_mtime != w->attr.st_mtime
3024	\|\| w->prev.st_ctime != w->attr.st_ctime	3170	\|\| prev.st_ctime != w->attr.st_ctime
3025	) {	3171	) {
		3172	/* we only update w->prev on actual differences */
		3173	/* in case we test more often than invoke the callback, */
		3174	/* to ensure that prev is always different to attr */
		3175	w->prev = prev;
		3176
3026	#if EV_USE_INOTIFY	3177	#if EV_USE_INOTIFY
3027	if (fs_fd >= 0)	3178	if (fs_fd >= 0)
3028	{	3179	{
3029	infy_del (EV_A_ w);	3180	infy_del (EV_A_ w);
3030	infy_add (EV_A_ w);	3181	infy_add (EV_A_ w);
…		…
3055		3206
3056	if (fs_fd >= 0)	3207	if (fs_fd >= 0)
3057	infy_add (EV_A_ w);	3208	infy_add (EV_A_ w);
3058	else	3209	else
3059	#endif	3210	#endif
		3211	{
3060	ev_timer_again (EV_A_ &w->timer);	3212	ev_timer_again (EV_A_ &w->timer);
		3213	ev_unref (EV_A);
		3214	}
3061		3215
3062	ev_start (EV_A_ (W)w, 1);	3216	ev_start (EV_A_ (W)w, 1);
3063		3217
3064	EV_FREQUENT_CHECK;	3218	EV_FREQUENT_CHECK;
3065	}	3219	}
…		…
3074	EV_FREQUENT_CHECK;	3228	EV_FREQUENT_CHECK;
3075		3229
3076	#if EV_USE_INOTIFY	3230	#if EV_USE_INOTIFY
3077	infy_del (EV_A_ w);	3231	infy_del (EV_A_ w);
3078	#endif	3232	#endif
		3233
		3234	if (ev_is_active (&w->timer))
		3235	{
		3236	ev_ref (EV_A);
3079	ev_timer_stop (EV_A_ &w->timer);	3237	ev_timer_stop (EV_A_ &w->timer);
		3238	}
3080		3239
3081	ev_stop (EV_A_ (W)w);	3240	ev_stop (EV_A_ (W)w);
3082		3241
3083	EV_FREQUENT_CHECK;	3242	EV_FREQUENT_CHECK;
3084	}	3243	}
…		…
3225	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3384	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3226	{	3385	{
3227	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));	3386	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
3228		3387
3229	{	3388	{
3230	struct ev_loop *loop = w->other;	3389	EV_P = w->other;
3231		3390
3232	while (fdchangecnt)	3391	while (fdchangecnt)
3233	{	3392	{
3234	fd_reify (EV_A);	3393	fd_reify (EV_A);
3235	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3394	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3243	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));	3402	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
3244		3403
3245	ev_embed_stop (EV_A_ w);	3404	ev_embed_stop (EV_A_ w);
3246		3405
3247	{	3406	{
3248	struct ev_loop *loop = w->other;	3407	EV_P = w->other;
3249		3408
3250	ev_loop_fork (EV_A);	3409	ev_loop_fork (EV_A);
3251	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3410	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3252	}	3411	}
3253		3412
…		…
3267	{	3426	{
3268	if (expect_false (ev_is_active (w)))	3427	if (expect_false (ev_is_active (w)))
3269	return;	3428	return;
3270		3429
3271	{	3430	{
3272	struct ev_loop *loop = w->other;	3431	EV_P = w->other;
3273	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3432	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3274	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3433	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3275	}	3434	}
3276		3435
3277	EV_FREQUENT_CHECK;	3436	EV_FREQUENT_CHECK;
…		…
3304		3463
3305	ev_io_stop (EV_A_ &w->io);	3464	ev_io_stop (EV_A_ &w->io);
3306	ev_prepare_stop (EV_A_ &w->prepare);	3465	ev_prepare_stop (EV_A_ &w->prepare);
3307	ev_fork_stop (EV_A_ &w->fork);	3466	ev_fork_stop (EV_A_ &w->fork);
3308		3467
		3468	ev_stop (EV_A_ (W)w);
		3469
3309	EV_FREQUENT_CHECK;	3470	EV_FREQUENT_CHECK;
3310	}	3471	}
3311	#endif	3472	#endif
3312		3473
3313	#if EV_FORK_ENABLE	3474	#if EV_FORK_ENABLE
…		…
3389		3550
3390	void	3551	void
3391	ev_async_send (EV_P_ ev_async *w)	3552	ev_async_send (EV_P_ ev_async *w)
3392	{	3553	{
3393	w->sent = 1;	3554	w->sent = 1;
3394	evpipe_write (EV_A_ &gotasync);	3555	evpipe_write (EV_A_ &async_pending);
3395	}	3556	}
3396	#endif	3557	#endif
3397		3558
3398	/*****************************************************************************/	3559	/*****************************************************************************/
3399		3560
…		…
3548	if (types & EV_CHECK)	3709	if (types & EV_CHECK)
3549	for (i = checkcnt; i--; )	3710	for (i = checkcnt; i--; )
3550	cb (EV_A_ EV_CHECK, checks [i]);	3711	cb (EV_A_ EV_CHECK, checks [i]);
3551		3712
3552	if (types & EV_SIGNAL)	3713	if (types & EV_SIGNAL)
3553	for (i = 0; i < signalmax; ++i)	3714	for (i = 0; i < EV_NSIG - 1; ++i)
3554	for (wl = signals [i].head; wl; )	3715	for (wl = signals [i].head; wl; )
3555	{	3716	{
3556	wn = wl->next;	3717	wn = wl->next;
3557	cb (EV_A_ EV_SIGNAL, wl);	3718	cb (EV_A_ EV_SIGNAL, wl);
3558	wl = wn;	3719	wl = wn;

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+Removed lines
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+Changed lines
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Comparing libev/ev.c (file contents): Revision 1.303 by root, Sun Jul 19 01:36:34 2009 UTC vs. Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.303 by root, Sun Jul 19 01:36:34 2009 UTC vs.
Revision 1.330 by root, Tue Mar 9 08:46:17 2010 UTC