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

Comparing libev/ev.c (file contents):
Revision 1.302 by root, Thu Jul 16 15:08:08 2009 UTC vs.
Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
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
…		…
133	# else	133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
135	# endif	135	# endif
136	# endif	136	# endif
137		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
		143	# endif
		144	# endif
		145
138	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
139	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
140	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
141	# else	149	# else
142	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
145		153
146	#endif	154	#endif
147		155
148	#include <math.h>	156	#include <math.h>
149	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
150	#include <fcntl.h>	159	#include <fcntl.h>
151	#include <stddef.h>	160	#include <stddef.h>
152		161
153	#include <stdio.h>	162	#include <stdio.h>
154		163
155	#include <assert.h>	164	#include <assert.h>
156	#include <errno.h>	165	#include <errno.h>
157	#include <sys/types.h>	166	#include <sys/types.h>
158	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
159		169
160	#include <signal.h>	170	#include <signal.h>
161		171
162	#ifdef EV_H	172	#ifdef EV_H
163	# include EV_H	173	# include EV_H
…		…
174	# define WIN32_LEAN_AND_MEAN	184	# define WIN32_LEAN_AND_MEAN
175	# include <windows.h>	185	# include <windows.h>
176	# ifndef EV_SELECT_IS_WINSOCKET	186	# ifndef EV_SELECT_IS_WINSOCKET
177	# define EV_SELECT_IS_WINSOCKET 1	187	# define EV_SELECT_IS_WINSOCKET 1
178	# endif	188	# endif
		189	# undef EV_AVOID_STDIO
179	#endif	190	#endif
180		191
181	/* this block tries to deduce configuration from header-defined symbols and defaults */	192	/* this block tries to deduce configuration from header-defined symbols and defaults */
		193
		194	/* try to deduce the maximum number of signals on this platform */
		195	#if defined (EV_NSIG)
		196	/* use what's provided */
		197	#elif defined (NSIG)
		198	# define EV_NSIG (NSIG)
		199	#elif defined(_NSIG)
		200	# define EV_NSIG (_NSIG)
		201	#elif defined (SIGMAX)
		202	# define EV_NSIG (SIGMAX+1)
		203	#elif defined (SIG_MAX)
		204	# define EV_NSIG (SIG_MAX+1)
		205	#elif defined (_SIG_MAX)
		206	# define EV_NSIG (_SIG_MAX+1)
		207	#elif defined (MAXSIG)
		208	# define EV_NSIG (MAXSIG+1)
		209	#elif defined (MAX_SIG)
		210	# define EV_NSIG (MAX_SIG+1)
		211	#elif defined (SIGARRAYSIZE)
		212	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		213	#elif defined (_sys_nsig)
		214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		215	#else
		216	# error "unable to find value for NSIG, please report"
		217	/* to make it compile regardless, just remove the above line, */
		218	/* but consider reporting it, too! :) */
		219	# define EV_NSIG 65
		220	#endif
182		221
183	#ifndef EV_USE_CLOCK_SYSCALL	222	#ifndef EV_USE_CLOCK_SYSCALL
184	# if __linux && __GLIBC__ >= 2	223	# if __linux && __GLIBC__ >= 2
185	# define EV_USE_CLOCK_SYSCALL 1	224	# define EV_USE_CLOCK_SYSCALL 1
186	# else	225	# else
…		…
263	#ifndef EV_USE_EVENTFD	302	#ifndef EV_USE_EVENTFD
264	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	303	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265	# define EV_USE_EVENTFD 1	304	# define EV_USE_EVENTFD 1
266	# else	305	# else
267	# define EV_USE_EVENTFD 0	306	# define EV_USE_EVENTFD 0
		307	# endif
		308	#endif
		309
		310	#ifndef EV_USE_SIGNALFD
		311	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		312	# define EV_USE_SIGNALFD 1
		313	# else
		314	# define EV_USE_SIGNALFD 0
268	# endif	315	# endif
269	#endif	316	#endif
270		317
271	#if 0 /* debugging */	318	#if 0 /* debugging */
272	# define EV_VERIFY 3	319	# define EV_VERIFY 3
…		…
300	# endif	347	# endif
301	#endif	348	#endif
302		349
303	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	350	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304		351
		352	#ifdef _AIX
		353	/* AIX has a completely broken poll.h header */
		354	# undef EV_USE_POLL
		355	# define EV_USE_POLL 0
		356	#endif
		357
305	#ifndef CLOCK_MONOTONIC	358	#ifndef CLOCK_MONOTONIC
306	# undef EV_USE_MONOTONIC	359	# undef EV_USE_MONOTONIC
307	# define EV_USE_MONOTONIC 0	360	# define EV_USE_MONOTONIC 0
308	#endif	361	#endif
309		362
…		…
339	#endif	392	#endif
340		393
341	#if EV_USE_EVENTFD	394	#if EV_USE_EVENTFD
342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	395	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343	# include <stdint.h>	396	# include <stdint.h>
		397	# ifndef EFD_NONBLOCK
		398	# define EFD_NONBLOCK O_NONBLOCK
		399	# endif
		400	# ifndef EFD_CLOEXEC
		401	# ifdef O_CLOEXEC
		402	# define EFD_CLOEXEC O_CLOEXEC
		403	# else
		404	# define EFD_CLOEXEC 02000000
		405	# endif
		406	# endif
344	# ifdef __cplusplus	407	# ifdef __cplusplus
345	extern "C" {	408	extern "C" {
346	# endif	409	# endif
347	int eventfd (unsigned int initval, int flags);	410	int (eventfd) (unsigned int initval, int flags);
348	# ifdef __cplusplus	411	# ifdef __cplusplus
349	}	412	}
350	# endif	413	# endif
351	#endif	414	#endif
		415
		416	#if EV_USE_SIGNALFD
		417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		418	# include <stdint.h>
		419	# ifndef SFD_NONBLOCK
		420	# define SFD_NONBLOCK O_NONBLOCK
		421	# endif
		422	# ifndef SFD_CLOEXEC
		423	# ifdef O_CLOEXEC
		424	# define SFD_CLOEXEC O_CLOEXEC
		425	# else
		426	# define SFD_CLOEXEC 02000000
		427	# endif
		428	# endif
		429	# ifdef __cplusplus
		430	extern "C" {
		431	# endif
		432	int signalfd (int fd, const sigset_t *mask, int flags);
		433
		434	struct signalfd_siginfo
		435	{
		436	uint32_t ssi_signo;
		437	char pad[128 - sizeof (uint32_t)];
		438	};
		439	# ifdef __cplusplus
		440	}
		441	# endif
		442	#endif
		443
352		444
353	/**/	445	/**/
354		446
355	#if EV_VERIFY >= 3	447	#if EV_VERIFY >= 3
356	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	448	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
368	*/	460	*/
369	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	461	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370		462
371	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	463	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
374		465
375	#if __GNUC__ >= 4	466	#if __GNUC__ >= 4
376	# define expect(expr,value) __builtin_expect ((expr),(value))	467	# define expect(expr,value) __builtin_expect ((expr),(value))
377	# define noinline __attribute__ ((noinline))	468	# define noinline __attribute__ ((noinline))
378	#else	469	#else
…		…
419		510
420	#if EV_USE_MONOTONIC	511	#if EV_USE_MONOTONIC
421	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	512	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422	#endif	513	#endif
423		514
		515	#ifndef EV_FD_TO_WIN32_HANDLE
		516	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		517	#endif
		518	#ifndef EV_WIN32_HANDLE_TO_FD
		519	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		520	#endif
		521	#ifndef EV_WIN32_CLOSE_FD
		522	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		523	#endif
		524
424	#ifdef _WIN32	525	#ifdef _WIN32
425	# include "ev_win32.c"	526	# include "ev_win32.c"
426	#endif	527	#endif
427		528
428	/*****************************************************************************/	529	/*****************************************************************************/
		530
		531	#if EV_AVOID_STDIO
		532	static void noinline
		533	ev_printerr (const char *msg)
		534	{
		535	write (STDERR_FILENO, msg, strlen (msg));
		536	}
		537	#endif
429		538
430	static void (syserr_cb)(const char msg);	539	static void (syserr_cb)(const char msg);
431		540
432	void	541	void
433	ev_set_syserr_cb (void (cb)(const char msg))	542	ev_set_syserr_cb (void (cb)(const char msg))
…		…
443		552
444	if (syserr_cb)	553	if (syserr_cb)
445	syserr_cb (msg);	554	syserr_cb (msg);
446	else	555	else
447	{	556	{
		557	#if EV_AVOID_STDIO
		558	const char *err = strerror (errno);
		559
		560	ev_printerr (msg);
		561	ev_printerr (": ");
		562	ev_printerr (err);
		563	ev_printerr ("\n");
		564	#else
448	perror (msg);	565	perror (msg);
		566	#endif
449	abort ();	567	abort ();
450	}	568	}
451	}	569	}
452		570
453	static void *	571	static void *
454	ev_realloc_emul (void *ptr, long size)	572	ev_realloc_emul (void *ptr, long size)
455	{	573	{
		574	#if __GLIBC__
		575	return realloc (ptr, size);
		576	#else
456	/* some systems, notably openbsd and darwin, fail to properly	577	/* some systems, notably openbsd and darwin, fail to properly
457	* implement realloc (x, 0) (as required by both ansi c-98 and	578	* implement realloc (x, 0) (as required by both ansi c-89 and
458	* the single unix specification, so work around them here.	579	* the single unix specification, so work around them here.
459	*/	580	*/
460		581
461	if (size)	582	if (size)
462	return realloc (ptr, size);	583	return realloc (ptr, size);
463		584
464	free (ptr);	585	free (ptr);
465	return 0;	586	return 0;
		587	#endif
466	}	588	}
467		589
468	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	590	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
469		591
470	void	592	void
…		…
478	{	600	{
479	ptr = alloc (ptr, size);	601	ptr = alloc (ptr, size);
480		602
481	if (!ptr && size)	603	if (!ptr && size)
482	{	604	{
		605	#if EV_AVOID_STDIO
		606	ev_printerr ("libev: memory allocation failed, aborting.\n");
		607	#else
483	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	608	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		609	#endif
484	abort ();	610	abort ();
485	}	611	}
486		612
487	return ptr;	613	return ptr;
488	}	614	}
…		…
765	}	891	}
766		892
767	/*****************************************************************************/	893	/*****************************************************************************/
768		894
769	inline_speed void	895	inline_speed void
770	fd_event_nc (EV_P_ int fd, int revents)	896	fd_event_nocheck (EV_P_ int fd, int revents)
771	{	897	{
772	ANFD *anfd = anfds + fd;	898	ANFD *anfd = anfds + fd;
773	ev_io *w;	899	ev_io *w;
774		900
775	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	901	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
787	fd_event (EV_P_ int fd, int revents)	913	fd_event (EV_P_ int fd, int revents)
788	{	914	{
789	ANFD *anfd = anfds + fd;	915	ANFD *anfd = anfds + fd;
790		916
791	if (expect_true (!anfd->reify))	917	if (expect_true (!anfd->reify))
792	fd_event_nc (EV_A_ fd, revents);	918	fd_event_nocheck (EV_A_ fd, revents);
793	}	919	}
794		920
795	void	921	void
796	ev_feed_fd_event (EV_P_ int fd, int revents)	922	ev_feed_fd_event (EV_P_ int fd, int revents)
797	{	923	{
798	if (fd >= 0 && fd < anfdmax)	924	if (fd >= 0 && fd < anfdmax)
799	fd_event_nc (EV_A_ fd, revents);	925	fd_event_nocheck (EV_A_ fd, revents);
800	}	926	}
801		927
802	/* make sure the external fd watch events are in-sync */	928	/* make sure the external fd watch events are in-sync */
803	/* with the kernel/libev internal state */	929	/* with the kernel/libev internal state */
804	inline_size void	930	inline_size void
…		…
819		945
820	#if EV_SELECT_IS_WINSOCKET	946	#if EV_SELECT_IS_WINSOCKET
821	if (events)	947	if (events)
822	{	948	{
823	unsigned long arg;	949	unsigned long arg;
824	#ifdef EV_FD_TO_WIN32_HANDLE
825	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	950	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
826	#else
827	anfd->handle = _get_osfhandle (fd);
828	#endif
829	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	951	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
830	}	952	}
831	#endif	953	#endif
832		954
833	{	955	{
…		…
871	ev_io_stop (EV_A_ w);	993	ev_io_stop (EV_A_ w);
872	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	994	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
873	}	995	}
874	}	996	}
875		997
876	/* check whether the given fd is atcually valid, for error recovery */	998	/* check whether the given fd is actually valid, for error recovery */
877	inline_size int	999	inline_size int
878	fd_valid (int fd)	1000	fd_valid (int fd)
879	{	1001	{
880	#ifdef _WIN32	1002	#ifdef _WIN32
881	return _get_osfhandle (fd) != -1;	1003	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
882	#else	1004	#else
883	return fcntl (fd, F_GETFD) != -1;	1005	return fcntl (fd, F_GETFD) != -1;
884	#endif	1006	#endif
885	}	1007	}
886		1008
…		…
904		1026
905	for (fd = anfdmax; fd--; )	1027	for (fd = anfdmax; fd--; )
906	if (anfds [fd].events)	1028	if (anfds [fd].events)
907	{	1029	{
908	fd_kill (EV_A_ fd);	1030	fd_kill (EV_A_ fd);
909	return;	1031	break;
910	}	1032	}
911	}	1033	}
912		1034
913	/* usually called after fork if backend needs to re-arm all fds from scratch */	1035	/* usually called after fork if backend needs to re-arm all fds from scratch */
914	static void noinline	1036	static void noinline
…		…
921	{	1043	{
922	anfds [fd].events = 0;	1044	anfds [fd].events = 0;
923	anfds [fd].emask = 0;	1045	anfds [fd].emask = 0;
924	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1046	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
925	}	1047	}
		1048	}
		1049
		1050	/* used to prepare libev internal fd's */
		1051	/* this is not fork-safe */
		1052	inline_speed void
		1053	fd_intern (int fd)
		1054	{
		1055	#ifdef _WIN32
		1056	unsigned long arg = 1;
		1057	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1058	#else
		1059	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1060	fcntl (fd, F_SETFL, O_NONBLOCK);
		1061	#endif
926	}	1062	}
927		1063
928	/*****************************************************************************/	1064	/*****************************************************************************/
929		1065
930	/*	1066	/*
…		…
1004		1140
1005	for (;;)	1141	for (;;)
1006	{	1142	{
1007	int c = k << 1;	1143	int c = k << 1;
1008		1144
1009	if (c > N + HEAP0 - 1)	1145	if (c >= N + HEAP0)
1010	break;	1146	break;
1011		1147
1012	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1148	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1013	? 1 : 0;	1149	? 1 : 0;
1014		1150
…		…
1050		1186
1051	/* move an element suitably so it is in a correct place */	1187	/* move an element suitably so it is in a correct place */
1052	inline_size void	1188	inline_size void
1053	adjustheap (ANHE *heap, int N, int k)	1189	adjustheap (ANHE *heap, int N, int k)
1054	{	1190	{
1055	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1191	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1056	upheap (heap, k);	1192	upheap (heap, k);
1057	else	1193	else
1058	downheap (heap, N, k);	1194	downheap (heap, N, k);
1059	}	1195	}
1060		1196
…		…
1073	/*****************************************************************************/	1209	/*****************************************************************************/
1074		1210
1075	/* associate signal watchers to a signal signal */	1211	/* associate signal watchers to a signal signal */
1076	typedef struct	1212	typedef struct
1077	{	1213	{
		1214	EV_ATOMIC_T pending;
		1215	#if EV_MULTIPLICITY
		1216	EV_P;
		1217	#endif
1078	WL head;	1218	WL head;
1079	EV_ATOMIC_T gotsig;
1080	} ANSIG;	1219	} ANSIG;
1081		1220
1082	static ANSIG *signals;	1221	static ANSIG signals [EV_NSIG - 1];
1083	static int signalmax;
1084
1085	static EV_ATOMIC_T gotsig;
1086		1222
1087	/*****************************************************************************/	1223	/*****************************************************************************/
1088		1224
1089	/* used to prepare libev internal fd's */	1225	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1090	/* this is not fork-safe */
1091	inline_speed void
1092	fd_intern (int fd)
1093	{
1094	#ifdef _WIN32
1095	unsigned long arg = 1;
1096	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1097	#else
1098	fcntl (fd, F_SETFD, FD_CLOEXEC);
1099	fcntl (fd, F_SETFL, O_NONBLOCK);
1100	#endif
1101	}
1102		1226
1103	static void noinline	1227	static void noinline
1104	evpipe_init (EV_P)	1228	evpipe_init (EV_P)
1105	{	1229	{
1106	if (!ev_is_active (&pipe_w))	1230	if (!ev_is_active (&pipe_w))
1107	{	1231	{
1108	#if EV_USE_EVENTFD	1232	# if EV_USE_EVENTFD
		1233	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
		1234	if (evfd < 0 && errno == EINVAL)
1109	if ((evfd = eventfd (0, 0)) >= 0)	1235	evfd = eventfd (0, 0);
		1236
		1237	if (evfd >= 0)
1110	{	1238	{
1111	evpipe [0] = -1;	1239	evpipe [0] = -1;
1112	fd_intern (evfd);	1240	fd_intern (evfd); /* doing it twice doesn't hurt */
1113	ev_io_set (&pipe_w, evfd, EV_READ);	1241	ev_io_set (&pipe_w, evfd, EV_READ);
1114	}	1242	}
1115	else	1243	else
1116	#endif	1244	# endif
1117	{	1245	{
1118	while (pipe (evpipe))	1246	while (pipe (evpipe))
1119	ev_syserr ("(libev) error creating signal/async pipe");	1247	ev_syserr ("(libev) error creating signal/async pipe");
1120		1248
1121	fd_intern (evpipe [0]);	1249	fd_intern (evpipe [0]);
…		…
1132	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1260	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133	{	1261	{
1134	if (!*flag)	1262	if (!*flag)
1135	{	1263	{
1136	int old_errno = errno; /* save errno because write might clobber it */	1264	int old_errno = errno; /* save errno because write might clobber it */
		1265	char dummy;
1137		1266
1138	*flag = 1;	1267	*flag = 1;
1139		1268
1140	#if EV_USE_EVENTFD	1269	#if EV_USE_EVENTFD
1141	if (evfd >= 0)	1270	if (evfd >= 0)
…		…
1143	uint64_t counter = 1;	1272	uint64_t counter = 1;
1144	write (evfd, &counter, sizeof (uint64_t));	1273	write (evfd, &counter, sizeof (uint64_t));
1145	}	1274	}
1146	else	1275	else
1147	#endif	1276	#endif
1148	write (evpipe [1], &old_errno, 1);	1277	write (evpipe [1], &dummy, 1);
1149		1278
1150	errno = old_errno;	1279	errno = old_errno;
1151	}	1280	}
1152	}	1281	}
1153		1282
1154	/* called whenever the libev signal pipe */	1283	/* called whenever the libev signal pipe */
1155	/* got some events (signal, async) */	1284	/* got some events (signal, async) */
1156	static void	1285	static void
1157	pipecb (EV_P_ ev_io *iow, int revents)	1286	pipecb (EV_P_ ev_io *iow, int revents)
1158	{	1287	{
		1288	int i;
		1289
1159	#if EV_USE_EVENTFD	1290	#if EV_USE_EVENTFD
1160	if (evfd >= 0)	1291	if (evfd >= 0)
1161	{	1292	{
1162	uint64_t counter;	1293	uint64_t counter;
1163	read (evfd, &counter, sizeof (uint64_t));	1294	read (evfd, &counter, sizeof (uint64_t));
…		…
1167	{	1298	{
1168	char dummy;	1299	char dummy;
1169	read (evpipe [0], &dummy, 1);	1300	read (evpipe [0], &dummy, 1);
1170	}	1301	}
1171		1302
1172	if (gotsig && ev_is_default_loop (EV_A))	1303	if (sig_pending)
1173	{	1304	{
1174	int signum;	1305	sig_pending = 0;
1175	gotsig = 0;
1176		1306
1177	for (signum = signalmax; signum--; )	1307	for (i = EV_NSIG - 1; i--; )
1178	if (signals [signum].gotsig)	1308	if (expect_false (signals [i].pending))
1179	ev_feed_signal_event (EV_A_ signum + 1);	1309	ev_feed_signal_event (EV_A_ i + 1);
1180	}	1310	}
1181		1311
1182	#if EV_ASYNC_ENABLE	1312	#if EV_ASYNC_ENABLE
1183	if (gotasync)	1313	if (async_pending)
1184	{	1314	{
1185	int i;	1315	async_pending = 0;
1186	gotasync = 0;
1187		1316
1188	for (i = asynccnt; i--; )	1317	for (i = asynccnt; i--; )
1189	if (asyncs [i]->sent)	1318	if (asyncs [i]->sent)
1190	{	1319	{
1191	asyncs [i]->sent = 0;	1320	asyncs [i]->sent = 0;
…		…
1199		1328
1200	static void	1329	static void
1201	ev_sighandler (int signum)	1330	ev_sighandler (int signum)
1202	{	1331	{
1203	#if EV_MULTIPLICITY	1332	#if EV_MULTIPLICITY
1204	struct ev_loop *loop = &default_loop_struct;	1333	EV_P = signals [signum - 1].loop;
1205	#endif	1334	#endif
1206		1335
1207	#if _WIN32	1336	#ifdef _WIN32
1208	signal (signum, ev_sighandler);	1337	signal (signum, ev_sighandler);
1209	#endif	1338	#endif
1210		1339
1211	signals [signum - 1].gotsig = 1;	1340	signals [signum - 1].pending = 1;
1212	evpipe_write (EV_A_ &gotsig);	1341	evpipe_write (EV_A_ &sig_pending);
1213	}	1342	}
1214		1343
1215	void noinline	1344	void noinline
1216	ev_feed_signal_event (EV_P_ int signum)	1345	ev_feed_signal_event (EV_P_ int signum)
1217	{	1346	{
1218	WL w;	1347	WL w;
1219		1348
		1349	if (expect_false (signum <= 0 \|\| signum > EV_NSIG))
		1350	return;
		1351
		1352	--signum;
		1353
1220	#if EV_MULTIPLICITY	1354	#if EV_MULTIPLICITY
1221	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1355	/* it is permissible to try to feed a signal to the wrong loop */
1222	#endif	1356	/* or, likely more useful, feeding a signal nobody is waiting for */
1223		1357
1224	--signum;	1358	if (expect_false (signals [signum].loop != EV_A))
1225
1226	if (signum < 0 \|\| signum >= signalmax)
1227	return;	1359	return;
		1360	#endif
1228		1361
1229	signals [signum].gotsig = 0;	1362	signals [signum].pending = 0;
1230		1363
1231	for (w = signals [signum].head; w; w = w->next)	1364	for (w = signals [signum].head; w; w = w->next)
1232	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1365	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233	}	1366	}
1234		1367
		1368	#if EV_USE_SIGNALFD
		1369	static void
		1370	sigfdcb (EV_P_ ev_io *iow, int revents)
		1371	{
		1372	struct signalfd_siginfo si[2], sip; / these structs are big */
		1373
		1374	for (;;)
		1375	{
		1376	ssize_t res = read (sigfd, si, sizeof (si));
		1377
		1378	/* not ISO-C, as res might be -1, but works with SuS */
		1379	for (sip = si; (char )sip < (char )si + res; ++sip)
		1380	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1381
		1382	if (res < (ssize_t)sizeof (si))
		1383	break;
		1384	}
		1385	}
		1386	#endif
		1387
		1388	#endif
		1389
1235	/*****************************************************************************/	1390	/*****************************************************************************/
1236		1391
		1392	#if EV_CHILD_ENABLE
1237	static WL childs [EV_PID_HASHSIZE];	1393	static WL childs [EV_PID_HASHSIZE];
1238
1239	#ifndef _WIN32
1240		1394
1241	static ev_signal childev;	1395	static ev_signal childev;
1242		1396
1243	#ifndef WIFCONTINUED	1397	#ifndef WIFCONTINUED
1244	# define WIFCONTINUED(status) 0	1398	# define WIFCONTINUED(status) 0
…		…
1458	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1612	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1459	have_monotonic = 1;	1613	have_monotonic = 1;
1460	}	1614	}
1461	#endif	1615	#endif
1462		1616
		1617	/* pid check not overridable via env */
		1618	#ifndef _WIN32
		1619	if (flags & EVFLAG_FORKCHECK)
		1620	curpid = getpid ();
		1621	#endif
		1622
		1623	if (!(flags & EVFLAG_NOENV)
		1624	&& !enable_secure ()
		1625	&& getenv ("LIBEV_FLAGS"))
		1626	flags = atoi (getenv ("LIBEV_FLAGS"));
		1627
1463	ev_rt_now = ev_time ();	1628	ev_rt_now = ev_time ();
1464	mn_now = get_clock ();	1629	mn_now = get_clock ();
1465	now_floor = mn_now;	1630	now_floor = mn_now;
1466	rtmn_diff = ev_rt_now - mn_now;	1631	rtmn_diff = ev_rt_now - mn_now;
1467	#if EV_MINIMAL < 2	1632	#if EV_MINIMAL < 2
…		…
1470		1635
1471	io_blocktime = 0.;	1636	io_blocktime = 0.;
1472	timeout_blocktime = 0.;	1637	timeout_blocktime = 0.;
1473	backend = 0;	1638	backend = 0;
1474	backend_fd = -1;	1639	backend_fd = -1;
1475	gotasync = 0;	1640	sig_pending = 0;
		1641	#if EV_ASYNC_ENABLE
		1642	async_pending = 0;
		1643	#endif
1476	#if EV_USE_INOTIFY	1644	#if EV_USE_INOTIFY
1477	fs_fd = -2;	1645	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1478	#endif	1646	#endif
1479		1647	#if EV_USE_SIGNALFD
1480	/* pid check not overridable via env */	1648	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1481	#ifndef _WIN32
1482	if (flags & EVFLAG_FORKCHECK)
1483	curpid = getpid ();
1484	#endif	1649	#endif
1485
1486	if (!(flags & EVFLAG_NOENV)
1487	&& !enable_secure ()
1488	&& getenv ("LIBEV_FLAGS"))
1489	flags = atoi (getenv ("LIBEV_FLAGS"));
1490		1650
1491	if (!(flags & 0x0000ffffU))	1651	if (!(flags & 0x0000ffffU))
1492	flags \|= ev_recommended_backends ();	1652	flags \|= ev_recommended_backends ();
1493		1653
1494	#if EV_USE_PORT	1654	#if EV_USE_PORT
…		…
1507	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1667	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1508	#endif	1668	#endif
1509		1669
1510	ev_prepare_init (&pending_w, pendingcb);	1670	ev_prepare_init (&pending_w, pendingcb);
1511		1671
		1672	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1512	ev_init (&pipe_w, pipecb);	1673	ev_init (&pipe_w, pipecb);
1513	ev_set_priority (&pipe_w, EV_MAXPRI);	1674	ev_set_priority (&pipe_w, EV_MAXPRI);
		1675	#endif
1514	}	1676	}
1515	}	1677	}
1516		1678
1517	/* free up a loop structure */	1679	/* free up a loop structure */
1518	static void noinline	1680	static void noinline
…		…
1520	{	1682	{
1521	int i;	1683	int i;
1522		1684
1523	if (ev_is_active (&pipe_w))	1685	if (ev_is_active (&pipe_w))
1524	{	1686	{
1525	ev_ref (EV_A); /* signal watcher */	1687	/ev_ref (EV_A);/
1526	ev_io_stop (EV_A_ &pipe_w);	1688	/ev_io_stop (EV_A_ &pipe_w);/
1527		1689
1528	#if EV_USE_EVENTFD	1690	#if EV_USE_EVENTFD
1529	if (evfd >= 0)	1691	if (evfd >= 0)
1530	close (evfd);	1692	close (evfd);
1531	#endif	1693	#endif
1532		1694
1533	if (evpipe [0] >= 0)	1695	if (evpipe [0] >= 0)
1534	{	1696	{
1535	close (evpipe [0]);	1697	EV_WIN32_CLOSE_FD (evpipe [0]);
1536	close (evpipe [1]);	1698	EV_WIN32_CLOSE_FD (evpipe [1]);
1537	}	1699	}
1538	}	1700	}
		1701
		1702	#if EV_USE_SIGNALFD
		1703	if (ev_is_active (&sigfd_w))
		1704	close (sigfd);
		1705	#endif
1539		1706
1540	#if EV_USE_INOTIFY	1707	#if EV_USE_INOTIFY
1541	if (fs_fd >= 0)	1708	if (fs_fd >= 0)
1542	close (fs_fd);	1709	close (fs_fd);
1543	#endif	1710	#endif
…		…
1567	#if EV_IDLE_ENABLE	1734	#if EV_IDLE_ENABLE
1568	array_free (idle, [i]);	1735	array_free (idle, [i]);
1569	#endif	1736	#endif
1570	}	1737	}
1571		1738
1572	ev_free (anfds); anfdmax = 0;	1739	ev_free (anfds); anfds = 0; anfdmax = 0;
1573		1740
1574	/* have to use the microsoft-never-gets-it-right macro */	1741	/* have to use the microsoft-never-gets-it-right macro */
1575	array_free (rfeed, EMPTY);	1742	array_free (rfeed, EMPTY);
1576	array_free (fdchange, EMPTY);	1743	array_free (fdchange, EMPTY);
1577	array_free (timer, EMPTY);	1744	array_free (timer, EMPTY);
…		…
1612		1779
1613	if (ev_is_active (&pipe_w))	1780	if (ev_is_active (&pipe_w))
1614	{	1781	{
1615	/* this "locks" the handlers against writing to the pipe */	1782	/* this "locks" the handlers against writing to the pipe */
1616	/* while we modify the fd vars */	1783	/* while we modify the fd vars */
1617	gotsig = 1;	1784	sig_pending = 1;
1618	#if EV_ASYNC_ENABLE	1785	#if EV_ASYNC_ENABLE
1619	gotasync = 1;	1786	async_pending = 1;
1620	#endif	1787	#endif
1621		1788
1622	ev_ref (EV_A);	1789	ev_ref (EV_A);
1623	ev_io_stop (EV_A_ &pipe_w);	1790	ev_io_stop (EV_A_ &pipe_w);
1624		1791
…		…
1627	close (evfd);	1794	close (evfd);
1628	#endif	1795	#endif
1629		1796
1630	if (evpipe [0] >= 0)	1797	if (evpipe [0] >= 0)
1631	{	1798	{
1632	close (evpipe [0]);	1799	EV_WIN32_CLOSE_FD (evpipe [0]);
1633	close (evpipe [1]);	1800	EV_WIN32_CLOSE_FD (evpipe [1]);
1634	}	1801	}
1635		1802
		1803	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1636	evpipe_init (EV_A);	1804	evpipe_init (EV_A);
1637	/* now iterate over everything, in case we missed something */	1805	/* now iterate over everything, in case we missed something */
1638	pipecb (EV_A_ &pipe_w, EV_READ);	1806	pipecb (EV_A_ &pipe_w, EV_READ);
		1807	#endif
1639	}	1808	}
1640		1809
1641	postfork = 0;	1810	postfork = 0;
1642	}	1811	}
1643		1812
1644	#if EV_MULTIPLICITY	1813	#if EV_MULTIPLICITY
1645		1814
1646	struct ev_loop *	1815	struct ev_loop *
1647	ev_loop_new (unsigned int flags)	1816	ev_loop_new (unsigned int flags)
1648	{	1817	{
1649	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1818	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1650		1819
1651	memset (loop, 0, sizeof (struct ev_loop));	1820	memset (EV_A, 0, sizeof (struct ev_loop));
1652
1653	loop_init (EV_A_ flags);	1821	loop_init (EV_A_ flags);
1654		1822
1655	if (ev_backend (EV_A))	1823	if (ev_backend (EV_A))
1656	return loop;	1824	return EV_A;
1657		1825
1658	return 0;	1826	return 0;
1659	}	1827	}
1660		1828
1661	void	1829	void
…		…
1757	#if EV_ASYNC_ENABLE	1925	#if EV_ASYNC_ENABLE
1758	assert (asyncmax >= asynccnt);	1926	assert (asyncmax >= asynccnt);
1759	array_verify (EV_A_ (W *)asyncs, asynccnt);	1927	array_verify (EV_A_ (W *)asyncs, asynccnt);
1760	#endif	1928	#endif
1761		1929
		1930	#if EV_PREPARE_ENABLE
1762	assert (preparemax >= preparecnt);	1931	assert (preparemax >= preparecnt);
1763	array_verify (EV_A_ (W *)prepares, preparecnt);	1932	array_verify (EV_A_ (W *)prepares, preparecnt);
		1933	#endif
1764		1934
		1935	#if EV_CHECK_ENABLE
1765	assert (checkmax >= checkcnt);	1936	assert (checkmax >= checkcnt);
1766	array_verify (EV_A_ (W *)checks, checkcnt);	1937	array_verify (EV_A_ (W *)checks, checkcnt);
		1938	#endif
1767		1939
1768	# if 0	1940	# if 0
		1941	#if EV_CHILD_ENABLE
1769	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1942	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
1770	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1943	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1944	#endif
1771	# endif	1945	# endif
1772	#endif	1946	#endif
1773	}	1947	}
1774	#endif	1948	#endif
1775		1949
…		…
1782	#endif	1956	#endif
1783	{	1957	{
1784	if (!ev_default_loop_ptr)	1958	if (!ev_default_loop_ptr)
1785	{	1959	{
1786	#if EV_MULTIPLICITY	1960	#if EV_MULTIPLICITY
1787	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1961	EV_P = ev_default_loop_ptr = &default_loop_struct;
1788	#else	1962	#else
1789	ev_default_loop_ptr = 1;	1963	ev_default_loop_ptr = 1;
1790	#endif	1964	#endif
1791		1965
1792	loop_init (EV_A_ flags);	1966	loop_init (EV_A_ flags);
1793		1967
1794	if (ev_backend (EV_A))	1968	if (ev_backend (EV_A))
1795	{	1969	{
1796	#ifndef _WIN32	1970	#if EV_CHILD_ENABLE
1797	ev_signal_init (&childev, childcb, SIGCHLD);	1971	ev_signal_init (&childev, childcb, SIGCHLD);
1798	ev_set_priority (&childev, EV_MAXPRI);	1972	ev_set_priority (&childev, EV_MAXPRI);
1799	ev_signal_start (EV_A_ &childev);	1973	ev_signal_start (EV_A_ &childev);
1800	ev_unref (EV_A); /* child watcher should not keep loop alive */	1974	ev_unref (EV_A); /* child watcher should not keep loop alive */
1801	#endif	1975	#endif
…		…
1809		1983
1810	void	1984	void
1811	ev_default_destroy (void)	1985	ev_default_destroy (void)
1812	{	1986	{
1813	#if EV_MULTIPLICITY	1987	#if EV_MULTIPLICITY
1814	struct ev_loop *loop = ev_default_loop_ptr;	1988	EV_P = ev_default_loop_ptr;
1815	#endif	1989	#endif
1816		1990
1817	ev_default_loop_ptr = 0;	1991	ev_default_loop_ptr = 0;
1818		1992
1819	#ifndef _WIN32	1993	#if EV_CHILD_ENABLE
1820	ev_ref (EV_A); /* child watcher */	1994	ev_ref (EV_A); /* child watcher */
1821	ev_signal_stop (EV_A_ &childev);	1995	ev_signal_stop (EV_A_ &childev);
1822	#endif	1996	#endif
1823		1997
1824	loop_destroy (EV_A);	1998	loop_destroy (EV_A);
…		…
1826		2000
1827	void	2001	void
1828	ev_default_fork (void)	2002	ev_default_fork (void)
1829	{	2003	{
1830	#if EV_MULTIPLICITY	2004	#if EV_MULTIPLICITY
1831	struct ev_loop *loop = ev_default_loop_ptr;	2005	EV_P = ev_default_loop_ptr;
1832	#endif	2006	#endif
1833		2007
1834	postfork = 1; /* must be in line with ev_loop_fork */	2008	postfork = 1; /* must be in line with ev_loop_fork */
1835	}	2009	}
1836		2010
…		…
2031	ANHE_at_cache (*he);	2205	ANHE_at_cache (*he);
2032	}	2206	}
2033	}	2207	}
2034		2208
2035	/* fetch new monotonic and realtime times from the kernel */	2209	/* fetch new monotonic and realtime times from the kernel */
2036	/* also detetc if there was a timejump, and act accordingly */	2210	/* also detect if there was a timejump, and act accordingly */
2037	inline_speed void	2211	inline_speed void
2038	time_update (EV_P_ ev_tstamp max_block)	2212	time_update (EV_P_ ev_tstamp max_block)
2039	{	2213	{
2040	#if EV_USE_MONOTONIC	2214	#if EV_USE_MONOTONIC
2041	if (expect_true (have_monotonic))	2215	if (expect_true (have_monotonic))
…		…
2136	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2310	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2137	EV_INVOKE_PENDING;	2311	EV_INVOKE_PENDING;
2138	}	2312	}
2139	#endif	2313	#endif
2140		2314
		2315	#if EV_PREPARE_ENABLE
2141	/* queue prepare watchers (and execute them) */	2316	/* queue prepare watchers (and execute them) */
2142	if (expect_false (preparecnt))	2317	if (expect_false (preparecnt))
2143	{	2318	{
2144	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2319	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2145	EV_INVOKE_PENDING;	2320	EV_INVOKE_PENDING;
2146	}	2321	}
		2322	#endif
2147		2323
2148	if (expect_false (loop_done))	2324	if (expect_false (loop_done))
2149	break;	2325	break;
2150		2326
2151	/* we might have forked, so reify kernel state if necessary */	2327	/* we might have forked, so reify kernel state if necessary */
…		…
2224	#if EV_IDLE_ENABLE	2400	#if EV_IDLE_ENABLE
2225	/* queue idle watchers unless other events are pending */	2401	/* queue idle watchers unless other events are pending */
2226	idle_reify (EV_A);	2402	idle_reify (EV_A);
2227	#endif	2403	#endif
2228		2404
		2405	#if EV_CHECK_ENABLE
2229	/* queue check watchers, to be executed first */	2406	/* queue check watchers, to be executed first */
2230	if (expect_false (checkcnt))	2407	if (expect_false (checkcnt))
2231	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2408	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2409	#endif
2232		2410
2233	EV_INVOKE_PENDING;	2411	EV_INVOKE_PENDING;
2234	}	2412	}
2235	while (expect_true (	2413	while (expect_true (
2236	activecnt	2414	activecnt
…		…
2302	inline_size void	2480	inline_size void
2303	wlist_del (WL *head, WL elem)	2481	wlist_del (WL *head, WL elem)
2304	{	2482	{
2305	while (*head)	2483	while (*head)
2306	{	2484	{
2307	if (*head == elem)	2485	if (expect_true (*head == elem))
2308	{	2486	{
2309	*head = elem->next;	2487	*head = elem->next;
2310	return;	2488	break;
2311	}	2489	}
2312		2490
2313	head = &(*head)->next;	2491	head = &(*head)->next;
2314	}	2492	}
2315	}	2493	}
…		…
2375		2553
2376	if (expect_false (ev_is_active (w)))	2554	if (expect_false (ev_is_active (w)))
2377	return;	2555	return;
2378		2556
2379	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2557	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2380	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));	2558	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2381		2559
2382	EV_FREQUENT_CHECK;	2560	EV_FREQUENT_CHECK;
2383		2561
2384	ev_start (EV_A_ (W)w, 1);	2562	ev_start (EV_A_ (W)w, 1);
2385	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2563	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2455	timers [active] = timers [timercnt + HEAP0];	2633	timers [active] = timers [timercnt + HEAP0];
2456	adjustheap (timers, timercnt, active);	2634	adjustheap (timers, timercnt, active);
2457	}	2635	}
2458	}	2636	}
2459		2637
2460	EV_FREQUENT_CHECK;
2461
2462	ev_at (w) -= mn_now;	2638	ev_at (w) -= mn_now;
2463		2639
2464	ev_stop (EV_A_ (W)w);	2640	ev_stop (EV_A_ (W)w);
		2641
		2642	EV_FREQUENT_CHECK;
2465	}	2643	}
2466		2644
2467	void noinline	2645	void noinline
2468	ev_timer_again (EV_P_ ev_timer *w)	2646	ev_timer_again (EV_P_ ev_timer *w)
2469	{	2647	{
…		…
2548	periodics [active] = periodics [periodiccnt + HEAP0];	2726	periodics [active] = periodics [periodiccnt + HEAP0];
2549	adjustheap (periodics, periodiccnt, active);	2727	adjustheap (periodics, periodiccnt, active);
2550	}	2728	}
2551	}	2729	}
2552		2730
2553	EV_FREQUENT_CHECK;
2554
2555	ev_stop (EV_A_ (W)w);	2731	ev_stop (EV_A_ (W)w);
		2732
		2733	EV_FREQUENT_CHECK;
2556	}	2734	}
2557		2735
2558	void noinline	2736	void noinline
2559	ev_periodic_again (EV_P_ ev_periodic *w)	2737	ev_periodic_again (EV_P_ ev_periodic *w)
2560	{	2738	{
…		…
2566		2744
2567	#ifndef SA_RESTART	2745	#ifndef SA_RESTART
2568	# define SA_RESTART 0	2746	# define SA_RESTART 0
2569	#endif	2747	#endif
2570		2748
		2749	#if EV_SIGNAL_ENABLE
		2750
2571	void noinline	2751	void noinline
2572	ev_signal_start (EV_P_ ev_signal *w)	2752	ev_signal_start (EV_P_ ev_signal *w)
2573	{	2753	{
2574	#if EV_MULTIPLICITY
2575	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2576	#endif
2577	if (expect_false (ev_is_active (w)))	2754	if (expect_false (ev_is_active (w)))
2578	return;	2755	return;
2579		2756
2580	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2757	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2581		2758
2582	evpipe_init (EV_A);	2759	#if EV_MULTIPLICITY
		2760	assert (("libev: a signal must not be attached to two different loops",
		2761	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));
2583		2762
2584	EV_FREQUENT_CHECK;	2763	signals [w->signum - 1].loop = EV_A;
		2764	#endif
2585		2765
		2766	EV_FREQUENT_CHECK;
		2767
		2768	#if EV_USE_SIGNALFD
		2769	if (sigfd == -2)
2586	{	2770	{
2587	#ifndef _WIN32	2771	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK \| SFD_CLOEXEC);
2588	sigset_t full, prev;	2772	if (sigfd < 0 && errno == EINVAL)
2589	sigfillset (&full);	2773	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2590	sigprocmask (SIG_SETMASK, &full, &prev);
2591	#endif
2592		2774
2593	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2775	if (sigfd >= 0)
		2776	{
		2777	fd_intern (sigfd); /* doing it twice will not hurt */
2594		2778
2595	#ifndef _WIN32	2779	sigemptyset (&sigfd_set);
2596	sigprocmask (SIG_SETMASK, &prev, 0);	2780
2597	#endif	2781	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2782	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2783	ev_io_start (EV_A_ &sigfd_w);
		2784	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2785	}
2598	}	2786	}
		2787
		2788	if (sigfd >= 0)
		2789	{
		2790	/* TODO: check .head */
		2791	sigaddset (&sigfd_set, w->signum);
		2792	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2793
		2794	signalfd (sigfd, &sigfd_set, 0);
		2795	}
		2796	#endif
2599		2797
2600	ev_start (EV_A_ (W)w, 1);	2798	ev_start (EV_A_ (W)w, 1);
2601	wlist_add (&signals [w->signum - 1].head, (WL)w);	2799	wlist_add (&signals [w->signum - 1].head, (WL)w);
2602		2800
2603	if (!((WL)w)->next)	2801	if (!((WL)w)->next)
		2802	# if EV_USE_SIGNALFD
		2803	if (sigfd < 0) /TODO/
		2804	# endif
2604	{	2805	{
2605	#if _WIN32	2806	# ifdef _WIN32
		2807	evpipe_init (EV_A);
		2808
2606	signal (w->signum, ev_sighandler);	2809	signal (w->signum, ev_sighandler);
2607	#else	2810	# else
2608	struct sigaction sa = { };	2811	struct sigaction sa;
		2812
		2813	evpipe_init (EV_A);
		2814
2609	sa.sa_handler = ev_sighandler;	2815	sa.sa_handler = ev_sighandler;
2610	sigfillset (&sa.sa_mask);	2816	sigfillset (&sa.sa_mask);
2611	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2817	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2612	sigaction (w->signum, &sa, 0);	2818	sigaction (w->signum, &sa, 0);
		2819
		2820	sigemptyset (&sa.sa_mask);
		2821	sigaddset (&sa.sa_mask, w->signum);
		2822	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2613	#endif	2823	#endif
2614	}	2824	}
2615		2825
2616	EV_FREQUENT_CHECK;	2826	EV_FREQUENT_CHECK;
2617	}	2827	}
2618		2828
2619	void noinline	2829	void noinline
…		…
2627		2837
2628	wlist_del (&signals [w->signum - 1].head, (WL)w);	2838	wlist_del (&signals [w->signum - 1].head, (WL)w);
2629	ev_stop (EV_A_ (W)w);	2839	ev_stop (EV_A_ (W)w);
2630		2840
2631	if (!signals [w->signum - 1].head)	2841	if (!signals [w->signum - 1].head)
		2842	{
		2843	#if EV_MULTIPLICITY
		2844	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2845	#endif
		2846	#if EV_USE_SIGNALFD
		2847	if (sigfd >= 0)
		2848	{
		2849	sigset_t ss;
		2850
		2851	sigemptyset (&ss);
		2852	sigaddset (&ss, w->signum);
		2853	sigdelset (&sigfd_set, w->signum);
		2854
		2855	signalfd (sigfd, &sigfd_set, 0);
		2856	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2857	}
		2858	else
		2859	#endif
2632	signal (w->signum, SIG_DFL);	2860	signal (w->signum, SIG_DFL);
		2861	}
2633		2862
2634	EV_FREQUENT_CHECK;	2863	EV_FREQUENT_CHECK;
2635	}	2864	}
		2865
		2866	#endif
		2867
		2868	#if EV_CHILD_ENABLE
2636		2869
2637	void	2870	void
2638	ev_child_start (EV_P_ ev_child *w)	2871	ev_child_start (EV_P_ ev_child *w)
2639	{	2872	{
2640	#if EV_MULTIPLICITY	2873	#if EV_MULTIPLICITY
…		…
2664	ev_stop (EV_A_ (W)w);	2897	ev_stop (EV_A_ (W)w);
2665		2898
2666	EV_FREQUENT_CHECK;	2899	EV_FREQUENT_CHECK;
2667	}	2900	}
2668		2901
		2902	#endif
		2903
2669	#if EV_STAT_ENABLE	2904	#if EV_STAT_ENABLE
2670		2905
2671	# ifdef _WIN32	2906	# ifdef _WIN32
2672	# undef lstat	2907	# undef lstat
2673	# define lstat(a,b) _stati64 (a,b)	2908	# define lstat(a,b) _stati64 (a,b)
…		…
2678	#define MIN_STAT_INTERVAL 0.1074891	2913	#define MIN_STAT_INTERVAL 0.1074891
2679		2914
2680	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2915	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2681		2916
2682	#if EV_USE_INOTIFY	2917	#if EV_USE_INOTIFY
2683	# define EV_INOTIFY_BUFSIZE 8192	2918
		2919	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2920	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2684		2921
2685	static void noinline	2922	static void noinline
2686	infy_add (EV_P_ ev_stat *w)	2923	infy_add (EV_P_ ev_stat *w)
2687	{	2924	{
2688	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);	2925	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);
2689		2926
2690	if (w->wd < 0)	2927	if (w->wd >= 0)
		2928	{
		2929	struct statfs sfs;
		2930
		2931	/* now local changes will be tracked by inotify, but remote changes won't */
		2932	/* unless the filesystem is known to be local, we therefore still poll */
		2933	/* also do poll on <2.6.25, but with normal frequency */
		2934
		2935	if (!fs_2625)
		2936	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2937	else if (!statfs (w->path, &sfs)
		2938	&& (sfs.f_type == 0x1373 /* devfs */
		2939	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2940	\|\| sfs.f_type == 0x3153464a /* jfs */
		2941	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2942	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2943	\|\| sfs.f_type == 0x58465342 /* xfs */))
		2944	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2945	else
		2946	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2691	{	2947	}
		2948	else
		2949	{
		2950	/* can't use inotify, continue to stat */
2692	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2951	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2693	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2694		2952
2695	/* monitor some parent directory for speedup hints */	2953	/* if path is not there, monitor some parent directory for speedup hints */
2696	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2954	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2697	/* but an efficiency issue only */	2955	/* but an efficiency issue only */
2698	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2956	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2699	{	2957	{
2700	char path [4096];	2958	char path [4096];
…		…
2716	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2974	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2717	}	2975	}
2718	}	2976	}
2719		2977
2720	if (w->wd >= 0)	2978	if (w->wd >= 0)
2721	{
2722	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2979	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2723		2980
2724	/* now local changes will be tracked by inotify, but remote changes won't */	2981	/* now re-arm timer, if required */
2725	/* unless the filesystem it known to be local, we therefore still poll */	2982	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2726	/* also do poll on <2.6.25, but with normal frequency */
2727	struct statfs sfs;
2728
2729	if (fs_2625 && !statfs (w->path, &sfs))
2730	if (sfs.f_type == 0x1373 /* devfs */
2731	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2732	\|\| sfs.f_type == 0x3153464a /* jfs */
2733	\|\| sfs.f_type == 0x52654973 /* reiser3 */
2734	\|\| sfs.f_type == 0x01021994 /* tempfs */
2735	\|\| sfs.f_type == 0x58465342 /* xfs */)
2736	return;
2737
2738	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2739	ev_timer_again (EV_A_ &w->timer);	2983	ev_timer_again (EV_A_ &w->timer);
2740	}	2984	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2741	}	2985	}
2742		2986
2743	static void noinline	2987	static void noinline
2744	infy_del (EV_P_ ev_stat *w)	2988	infy_del (EV_P_ ev_stat *w)
2745	{	2989	{
…		…
2790		3034
2791	static void	3035	static void
2792	infy_cb (EV_P_ ev_io *w, int revents)	3036	infy_cb (EV_P_ ev_io *w, int revents)
2793	{	3037	{
2794	char buf [EV_INOTIFY_BUFSIZE];	3038	char buf [EV_INOTIFY_BUFSIZE];
2795	struct inotify_event ev = (struct inotify_event )buf;
2796	int ofs;	3039	int ofs;
2797	int len = read (fs_fd, buf, sizeof (buf));	3040	int len = read (fs_fd, buf, sizeof (buf));
2798		3041
2799	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3042	for (ofs = 0; ofs < len; )
		3043	{
		3044	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2800	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3045	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3046	ofs += sizeof (struct inotify_event) + ev->len;
		3047	}
		3048	}
		3049
		3050	inline_size unsigned int
		3051	ev_linux_version (void)
		3052	{
		3053	struct utsname buf;
		3054	unsigned int v;
		3055	int i;
		3056	char *p = buf.release;
		3057
		3058	if (uname (&buf))
		3059	return 0;
		3060
		3061	for (i = 3+1; --i; )
		3062	{
		3063	unsigned int c = 0;
		3064
		3065	for (;;)
		3066	{
		3067	if (p >= '0' && p <= '9')
		3068	c = c * 10 + *p++ - '0';
		3069	else
		3070	{
		3071	p += *p == '.';
		3072	break;
		3073	}
		3074	}
		3075
		3076	v = (v << 8) \| c;
		3077	}
		3078
		3079	return v;
2801	}	3080	}
2802		3081
2803	inline_size void	3082	inline_size void
2804	check_2625 (EV_P)	3083	ev_check_2625 (EV_P)
2805	{	3084	{
2806	/* kernels < 2.6.25 are borked	3085	/* kernels < 2.6.25 are borked
2807	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3086	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2808	*/	3087	*/
2809	struct utsname buf;	3088	if (ev_linux_version () < 0x020619)
2810	int major, minor, micro;
2811
2812	if (uname (&buf))
2813	return;	3089	return;
2814		3090
2815	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2816	return;
2817
2818	if (major < 2
2819	\|\| (major == 2 && minor < 6)
2820	\|\| (major == 2 && minor == 6 && micro < 25))
2821	return;
2822
2823	fs_2625 = 1;	3091	fs_2625 = 1;
		3092	}
		3093
		3094	inline_size int
		3095	infy_newfd (void)
		3096	{
		3097	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3098	int fd = inotify_init1 (IN_CLOEXEC \| IN_NONBLOCK);
		3099	if (fd >= 0)
		3100	return fd;
		3101	#endif
		3102	return inotify_init ();
2824	}	3103	}
2825		3104
2826	inline_size void	3105	inline_size void
2827	infy_init (EV_P)	3106	infy_init (EV_P)
2828	{	3107	{
2829	if (fs_fd != -2)	3108	if (fs_fd != -2)
2830	return;	3109	return;
2831		3110
2832	fs_fd = -1;	3111	fs_fd = -1;
2833		3112
2834	check_2625 (EV_A);	3113	ev_check_2625 (EV_A);
2835		3114
2836	fs_fd = inotify_init ();	3115	fs_fd = infy_newfd ();
2837		3116
2838	if (fs_fd >= 0)	3117	if (fs_fd >= 0)
2839	{	3118	{
		3119	fd_intern (fs_fd);
2840	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3120	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2841	ev_set_priority (&fs_w, EV_MAXPRI);	3121	ev_set_priority (&fs_w, EV_MAXPRI);
2842	ev_io_start (EV_A_ &fs_w);	3122	ev_io_start (EV_A_ &fs_w);
		3123	ev_unref (EV_A);
2843	}	3124	}
2844	}	3125	}
2845		3126
2846	inline_size void	3127	inline_size void
2847	infy_fork (EV_P)	3128	infy_fork (EV_P)
…		…
2849	int slot;	3130	int slot;
2850		3131
2851	if (fs_fd < 0)	3132	if (fs_fd < 0)
2852	return;	3133	return;
2853		3134
		3135	ev_ref (EV_A);
		3136	ev_io_stop (EV_A_ &fs_w);
2854	close (fs_fd);	3137	close (fs_fd);
2855	fs_fd = inotify_init ();	3138	fs_fd = infy_newfd ();
		3139
		3140	if (fs_fd >= 0)
		3141	{
		3142	fd_intern (fs_fd);
		3143	ev_io_set (&fs_w, fs_fd, EV_READ);
		3144	ev_io_start (EV_A_ &fs_w);
		3145	ev_unref (EV_A);
		3146	}
2856		3147
2857	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3148	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2858	{	3149	{
2859	WL w_ = fs_hash [slot].head;	3150	WL w_ = fs_hash [slot].head;
2860	fs_hash [slot].head = 0;	3151	fs_hash [slot].head = 0;
…		…
2867	w->wd = -1;	3158	w->wd = -1;
2868		3159
2869	if (fs_fd >= 0)	3160	if (fs_fd >= 0)
2870	infy_add (EV_A_ w); /* re-add, no matter what */	3161	infy_add (EV_A_ w); /* re-add, no matter what */
2871	else	3162	else
		3163	{
		3164	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3165	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2872	ev_timer_again (EV_A_ &w->timer);	3166	ev_timer_again (EV_A_ &w->timer);
		3167	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3168	}
2873	}	3169	}
2874	}	3170	}
2875	}	3171	}
2876		3172
2877	#endif	3173	#endif
…		…
2894	static void noinline	3190	static void noinline
2895	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3191	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2896	{	3192	{
2897	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3193	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
2898		3194
2899	/* we copy this here each the time so that */	3195	ev_statdata prev = w->attr;
2900	/* prev has the old value when the callback gets invoked */
2901	w->prev = w->attr;
2902	ev_stat_stat (EV_A_ w);	3196	ev_stat_stat (EV_A_ w);
2903		3197
2904	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3198	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2905	if (	3199	if (
2906	w->prev.st_dev != w->attr.st_dev	3200	prev.st_dev != w->attr.st_dev
2907	\|\| w->prev.st_ino != w->attr.st_ino	3201	\|\| prev.st_ino != w->attr.st_ino
2908	\|\| w->prev.st_mode != w->attr.st_mode	3202	\|\| prev.st_mode != w->attr.st_mode
2909	\|\| w->prev.st_nlink != w->attr.st_nlink	3203	\|\| prev.st_nlink != w->attr.st_nlink
2910	\|\| w->prev.st_uid != w->attr.st_uid	3204	\|\| prev.st_uid != w->attr.st_uid
2911	\|\| w->prev.st_gid != w->attr.st_gid	3205	\|\| prev.st_gid != w->attr.st_gid
2912	\|\| w->prev.st_rdev != w->attr.st_rdev	3206	\|\| prev.st_rdev != w->attr.st_rdev
2913	\|\| w->prev.st_size != w->attr.st_size	3207	\|\| prev.st_size != w->attr.st_size
2914	\|\| w->prev.st_atime != w->attr.st_atime	3208	\|\| prev.st_atime != w->attr.st_atime
2915	\|\| w->prev.st_mtime != w->attr.st_mtime	3209	\|\| prev.st_mtime != w->attr.st_mtime
2916	\|\| w->prev.st_ctime != w->attr.st_ctime	3210	\|\| prev.st_ctime != w->attr.st_ctime
2917	) {	3211	) {
		3212	/* we only update w->prev on actual differences */
		3213	/* in case we test more often than invoke the callback, */
		3214	/* to ensure that prev is always different to attr */
		3215	w->prev = prev;
		3216
2918	#if EV_USE_INOTIFY	3217	#if EV_USE_INOTIFY
2919	if (fs_fd >= 0)	3218	if (fs_fd >= 0)
2920	{	3219	{
2921	infy_del (EV_A_ w);	3220	infy_del (EV_A_ w);
2922	infy_add (EV_A_ w);	3221	infy_add (EV_A_ w);
…		…
2947		3246
2948	if (fs_fd >= 0)	3247	if (fs_fd >= 0)
2949	infy_add (EV_A_ w);	3248	infy_add (EV_A_ w);
2950	else	3249	else
2951	#endif	3250	#endif
		3251	{
2952	ev_timer_again (EV_A_ &w->timer);	3252	ev_timer_again (EV_A_ &w->timer);
		3253	ev_unref (EV_A);
		3254	}
2953		3255
2954	ev_start (EV_A_ (W)w, 1);	3256	ev_start (EV_A_ (W)w, 1);
2955		3257
2956	EV_FREQUENT_CHECK;	3258	EV_FREQUENT_CHECK;
2957	}	3259	}
…		…
2966	EV_FREQUENT_CHECK;	3268	EV_FREQUENT_CHECK;
2967		3269
2968	#if EV_USE_INOTIFY	3270	#if EV_USE_INOTIFY
2969	infy_del (EV_A_ w);	3271	infy_del (EV_A_ w);
2970	#endif	3272	#endif
		3273
		3274	if (ev_is_active (&w->timer))
		3275	{
		3276	ev_ref (EV_A);
2971	ev_timer_stop (EV_A_ &w->timer);	3277	ev_timer_stop (EV_A_ &w->timer);
		3278	}
2972		3279
2973	ev_stop (EV_A_ (W)w);	3280	ev_stop (EV_A_ (W)w);
2974		3281
2975	EV_FREQUENT_CHECK;	3282	EV_FREQUENT_CHECK;
2976	}	3283	}
…		…
3021		3328
3022	EV_FREQUENT_CHECK;	3329	EV_FREQUENT_CHECK;
3023	}	3330	}
3024	#endif	3331	#endif
3025		3332
		3333	#if EV_PREPARE_ENABLE
3026	void	3334	void
3027	ev_prepare_start (EV_P_ ev_prepare *w)	3335	ev_prepare_start (EV_P_ ev_prepare *w)
3028	{	3336	{
3029	if (expect_false (ev_is_active (w)))	3337	if (expect_false (ev_is_active (w)))
3030	return;	3338	return;
…		…
3056		3364
3057	ev_stop (EV_A_ (W)w);	3365	ev_stop (EV_A_ (W)w);
3058		3366
3059	EV_FREQUENT_CHECK;	3367	EV_FREQUENT_CHECK;
3060	}	3368	}
		3369	#endif
3061		3370
		3371	#if EV_CHECK_ENABLE
3062	void	3372	void
3063	ev_check_start (EV_P_ ev_check *w)	3373	ev_check_start (EV_P_ ev_check *w)
3064	{	3374	{
3065	if (expect_false (ev_is_active (w)))	3375	if (expect_false (ev_is_active (w)))
3066	return;	3376	return;
…		…
3092		3402
3093	ev_stop (EV_A_ (W)w);	3403	ev_stop (EV_A_ (W)w);
3094		3404
3095	EV_FREQUENT_CHECK;	3405	EV_FREQUENT_CHECK;
3096	}	3406	}
		3407	#endif
3097		3408
3098	#if EV_EMBED_ENABLE	3409	#if EV_EMBED_ENABLE
3099	void noinline	3410	void noinline
3100	ev_embed_sweep (EV_P_ ev_embed *w)	3411	ev_embed_sweep (EV_P_ ev_embed *w)
3101	{	3412	{
…		…
3117	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3428	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3118	{	3429	{
3119	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));	3430	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
3120		3431
3121	{	3432	{
3122	struct ev_loop *loop = w->other;	3433	EV_P = w->other;
3123		3434
3124	while (fdchangecnt)	3435	while (fdchangecnt)
3125	{	3436	{
3126	fd_reify (EV_A);	3437	fd_reify (EV_A);
3127	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3438	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3135	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));	3446	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
3136		3447
3137	ev_embed_stop (EV_A_ w);	3448	ev_embed_stop (EV_A_ w);
3138		3449
3139	{	3450	{
3140	struct ev_loop *loop = w->other;	3451	EV_P = w->other;
3141		3452
3142	ev_loop_fork (EV_A);	3453	ev_loop_fork (EV_A);
3143	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3454	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3144	}	3455	}
3145		3456
…		…
3159	{	3470	{
3160	if (expect_false (ev_is_active (w)))	3471	if (expect_false (ev_is_active (w)))
3161	return;	3472	return;
3162		3473
3163	{	3474	{
3164	struct ev_loop *loop = w->other;	3475	EV_P = w->other;
3165	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3476	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3166	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3477	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3167	}	3478	}
3168		3479
3169	EV_FREQUENT_CHECK;	3480	EV_FREQUENT_CHECK;
…		…
3196		3507
3197	ev_io_stop (EV_A_ &w->io);	3508	ev_io_stop (EV_A_ &w->io);
3198	ev_prepare_stop (EV_A_ &w->prepare);	3509	ev_prepare_stop (EV_A_ &w->prepare);
3199	ev_fork_stop (EV_A_ &w->fork);	3510	ev_fork_stop (EV_A_ &w->fork);
3200		3511
		3512	ev_stop (EV_A_ (W)w);
		3513
3201	EV_FREQUENT_CHECK;	3514	EV_FREQUENT_CHECK;
3202	}	3515	}
3203	#endif	3516	#endif
3204		3517
3205	#if EV_FORK_ENABLE	3518	#if EV_FORK_ENABLE
…		…
3281		3594
3282	void	3595	void
3283	ev_async_send (EV_P_ ev_async *w)	3596	ev_async_send (EV_P_ ev_async *w)
3284	{	3597	{
3285	w->sent = 1;	3598	w->sent = 1;
3286	evpipe_write (EV_A_ &gotasync);	3599	evpipe_write (EV_A_ &async_pending);
3287	}	3600	}
3288	#endif	3601	#endif
3289		3602
3290	/*****************************************************************************/	3603	/*****************************************************************************/
3291		3604
…		…
3428	if (types & EV_ASYNC)	3741	if (types & EV_ASYNC)
3429	for (i = asynccnt; i--; )	3742	for (i = asynccnt; i--; )
3430	cb (EV_A_ EV_ASYNC, asyncs [i]);	3743	cb (EV_A_ EV_ASYNC, asyncs [i]);
3431	#endif	3744	#endif
3432		3745
		3746	#if EV_PREPARE_ENABLE
3433	if (types & EV_PREPARE)	3747	if (types & EV_PREPARE)
3434	for (i = preparecnt; i--; )	3748	for (i = preparecnt; i--; )
3435	#if EV_EMBED_ENABLE	3749	# if EV_EMBED_ENABLE
3436	if (ev_cb (prepares [i]) != embed_prepare_cb)	3750	if (ev_cb (prepares [i]) != embed_prepare_cb)
3437	#endif	3751	# endif
3438	cb (EV_A_ EV_PREPARE, prepares [i]);	3752	cb (EV_A_ EV_PREPARE, prepares [i]);
		3753	#endif
3439		3754
		3755	#if EV_CHECK_ENABLE
3440	if (types & EV_CHECK)	3756	if (types & EV_CHECK)
3441	for (i = checkcnt; i--; )	3757	for (i = checkcnt; i--; )
3442	cb (EV_A_ EV_CHECK, checks [i]);	3758	cb (EV_A_ EV_CHECK, checks [i]);
		3759	#endif
3443		3760
		3761	#if EV_SIGNAL_ENABLE
3444	if (types & EV_SIGNAL)	3762	if (types & EV_SIGNAL)
3445	for (i = 0; i < signalmax; ++i)	3763	for (i = 0; i < EV_NSIG - 1; ++i)
3446	for (wl = signals [i].head; wl; )	3764	for (wl = signals [i].head; wl; )
3447	{	3765	{
3448	wn = wl->next;	3766	wn = wl->next;
3449	cb (EV_A_ EV_SIGNAL, wl);	3767	cb (EV_A_ EV_SIGNAL, wl);
3450	wl = wn;	3768	wl = wn;
3451	}	3769	}
		3770	#endif
3452		3771
		3772	#if EV_CHILD_ENABLE
3453	if (types & EV_CHILD)	3773	if (types & EV_CHILD)
3454	for (i = EV_PID_HASHSIZE; i--; )	3774	for (i = EV_PID_HASHSIZE; i--; )
3455	for (wl = childs [i]; wl; )	3775	for (wl = childs [i]; wl; )
3456	{	3776	{
3457	wn = wl->next;	3777	wn = wl->next;
3458	cb (EV_A_ EV_CHILD, wl);	3778	cb (EV_A_ EV_CHILD, wl);
3459	wl = wn;	3779	wl = wn;
3460	}	3780	}
		3781	#endif
3461	/* EV_STAT 0x00001000 /* stat data changed */	3782	/* EV_STAT 0x00001000 /* stat data changed */
3462	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3783	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3463	}	3784	}
3464	#endif	3785	#endif
3465		3786

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Comparing libev/ev.c (file contents): Revision 1.302 by root, Thu Jul 16 15:08:08 2009 UTC vs. Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.302 by root, Thu Jul 16 15:08:08 2009 UTC vs.
Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC