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

Comparing libev/ev.c (file contents):
Revision 1.294 by root, Wed Jul 8 02:46:05 2009 UTC vs.
Revision 1.329 by root, Tue Feb 16 09:32:39 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
…		…
178	# endif	188	# endif
179	#endif	189	#endif
180		190
181	/* 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 */
182		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
183	#ifndef EV_USE_CLOCK_SYSCALL	220	#ifndef EV_USE_CLOCK_SYSCALL
184	# if __linux && __GLIBC__ >= 2	221	# if __linux && __GLIBC__ >= 2
185	# define EV_USE_CLOCK_SYSCALL 1	222	# define EV_USE_CLOCK_SYSCALL 1
186	# else	223	# else
187	# define EV_USE_CLOCK_SYSCALL 0	224	# define EV_USE_CLOCK_SYSCALL 0
…		…
263	#ifndef EV_USE_EVENTFD	300	#ifndef EV_USE_EVENTFD
264	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	301	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265	# define EV_USE_EVENTFD 1	302	# define EV_USE_EVENTFD 1
266	# else	303	# else
267	# define EV_USE_EVENTFD 0	304	# define EV_USE_EVENTFD 0
		305	# endif
		306	#endif
		307
		308	#ifndef EV_USE_SIGNALFD
		309	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		310	# define EV_USE_SIGNALFD 1
		311	# else
		312	# define EV_USE_SIGNALFD 0
268	# endif	313	# endif
269	#endif	314	#endif
270		315
271	#if 0 /* debugging */	316	#if 0 /* debugging */
272	# define EV_VERIFY 3	317	# define EV_VERIFY 3
…		…
300	# endif	345	# endif
301	#endif	346	#endif
302		347
303	/* 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 */
304		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
305	#ifndef CLOCK_MONOTONIC	356	#ifndef CLOCK_MONOTONIC
306	# undef EV_USE_MONOTONIC	357	# undef EV_USE_MONOTONIC
307	# define EV_USE_MONOTONIC 0	358	# define EV_USE_MONOTONIC 0
308	#endif	359	#endif
309		360
…		…
339	#endif	390	#endif
340		391
341	#if EV_USE_EVENTFD	392	#if EV_USE_EVENTFD
342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	393	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343	# include <stdint.h>	394	# include <stdint.h>
		395	# ifndef EFD_NONBLOCK
		396	# define EFD_NONBLOCK O_NONBLOCK
		397	# endif
		398	# ifndef EFD_CLOEXEC
		399	# ifdef O_CLOEXEC
		400	# define EFD_CLOEXEC O_CLOEXEC
		401	# else
		402	# define EFD_CLOEXEC 02000000
		403	# endif
		404	# endif
344	# ifdef __cplusplus	405	# ifdef __cplusplus
345	extern "C" {	406	extern "C" {
346	# endif	407	# endif
347	int eventfd (unsigned int initval, int flags);	408	int (eventfd) (unsigned int initval, int flags);
348	# ifdef __cplusplus	409	# ifdef __cplusplus
349	}	410	}
350	# endif	411	# endif
351	#endif	412	#endif
		413
		414	#if EV_USE_SIGNALFD
		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
		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
352		442
353	/**/	443	/**/
354		444
355	#if EV_VERIFY >= 3	445	#if EV_VERIFY >= 3
356	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	446	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
368	*/	458	*/
369	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	459	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370		460
371	#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) */
372	#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) */
373	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
374		463
375	#if __GNUC__ >= 4	464	#if __GNUC__ >= 4
376	# define expect(expr,value) __builtin_expect ((expr),(value))	465	# define expect(expr,value) __builtin_expect ((expr),(value))
377	# define noinline __attribute__ ((noinline))	466	# define noinline __attribute__ ((noinline))
378	#else	467	#else
…		…
391	# define inline_speed static noinline	480	# define inline_speed static noinline
392	#else	481	#else
393	# define inline_speed static inline	482	# define inline_speed static inline
394	#endif	483	#endif
395		484
396	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	485	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		486
		487	#if EV_MINPRI == EV_MAXPRI
		488	# define ABSPRI(w) (((W)w), 0)
		489	#else
397	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	490	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		491	#endif
398		492
399	#define EMPTY /* required for microsofts broken pseudo-c compiler */	493	#define EMPTY /* required for microsofts broken pseudo-c compiler */
400	#define EMPTY2(a,b) /* used to suppress some warnings */	494	#define EMPTY2(a,b) /* used to suppress some warnings */
401		495
402	typedef ev_watcher *W;	496	typedef ev_watcher *W;
…		…
414		508
415	#if EV_USE_MONOTONIC	509	#if EV_USE_MONOTONIC
416	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? */
417	#endif	511	#endif
418		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
419	#ifdef _WIN32	523	#ifdef _WIN32
420	# include "ev_win32.c"	524	# include "ev_win32.c"
421	#endif	525	#endif
422		526
423	/*****************************************************************************/	527	/*****************************************************************************/
…		…
485	#define ev_malloc(size) ev_realloc (0, (size))	589	#define ev_malloc(size) ev_realloc (0, (size))
486	#define ev_free(ptr) ev_realloc ((ptr), 0)	590	#define ev_free(ptr) ev_realloc ((ptr), 0)
487		591
488	/*****************************************************************************/	592	/*****************************************************************************/
489		593
		594	/* set in reify when reification needed */
		595	#define EV_ANFD_REIFY 1
		596
490	/* file descriptor info structure */	597	/* file descriptor info structure */
491	typedef struct	598	typedef struct
492	{	599	{
493	WL head;	600	WL head;
494	unsigned char events; /* the events watched for */	601	unsigned char events; /* the events watched for */
495	unsigned char reify; /* flag set when this ANFD needs reification */	602	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	603	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
497	unsigned char unused;	604	unsigned char unused;
498	#if EV_USE_EPOLL	605	#if EV_USE_EPOLL
499	unsigned int egen; /* generation counter to counter epoll bugs */	606	unsigned int egen; /* generation counter to counter epoll bugs */
500	#endif	607	#endif
…		…
562		669
563	static int ev_default_loop_ptr;	670	static int ev_default_loop_ptr;
564		671
565	#endif	672	#endif
566		673
		674	#if EV_MINIMAL < 2
		675	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		676	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		677	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		678	#else
		679	# define EV_RELEASE_CB (void)0
		680	# define EV_ACQUIRE_CB (void)0
		681	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		682	#endif
		683
		684	#define EVUNLOOP_RECURSE 0x80
		685
567	/*****************************************************************************/	686	/*****************************************************************************/
568		687
569	#ifndef EV_HAVE_EV_TIME	688	#ifndef EV_HAVE_EV_TIME
570	ev_tstamp	689	ev_tstamp
571	ev_time (void)	690	ev_time (void)
…		…
627		746
628	tv.tv_sec = (time_t)delay;	747	tv.tv_sec = (time_t)delay;
629	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	748	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630		749
631	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	750	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
632	/* somehting not guaranteed by newer posix versions, but guaranteed */	751	/* something not guaranteed by newer posix versions, but guaranteed */
633	/* by older ones */	752	/* by older ones */
634	select (0, 0, 0, 0, &tv);	753	select (0, 0, 0, 0, &tv);
635	#endif	754	#endif
636	}	755	}
637	}	756	}
…		…
745	}	864	}
746		865
747	/*****************************************************************************/	866	/*****************************************************************************/
748		867
749	inline_speed void	868	inline_speed void
750	fd_event (EV_P_ int fd, int revents)	869	fd_event_nc (EV_P_ int fd, int revents)
751	{	870	{
752	ANFD *anfd = anfds + fd;	871	ANFD *anfd = anfds + fd;
753	ev_io *w;	872	ev_io *w;
754		873
755	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	874	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
759	if (ev)	878	if (ev)
760	ev_feed_event (EV_A_ (W)w, ev);	879	ev_feed_event (EV_A_ (W)w, ev);
761	}	880	}
762	}	881	}
763		882
		883	/* do not submit kernel events for fds that have reify set */
		884	/* because that means they changed while we were polling for new events */
		885	inline_speed void
		886	fd_event (EV_P_ int fd, int revents)
		887	{
		888	ANFD *anfd = anfds + fd;
		889
		890	if (expect_true (!anfd->reify))
		891	fd_event_nc (EV_A_ fd, revents);
		892	}
		893
764	void	894	void
765	ev_feed_fd_event (EV_P_ int fd, int revents)	895	ev_feed_fd_event (EV_P_ int fd, int revents)
766	{	896	{
767	if (fd >= 0 && fd < anfdmax)	897	if (fd >= 0 && fd < anfdmax)
768	fd_event (EV_A_ fd, revents);	898	fd_event_nc (EV_A_ fd, revents);
769	}	899	}
770		900
771	/* make sure the external fd watch events are in-sync */	901	/* make sure the external fd watch events are in-sync */
772	/* with the kernel/libev internal state */	902	/* with the kernel/libev internal state */
773	inline_size void	903	inline_size void
…		…
788		918
789	#if EV_SELECT_IS_WINSOCKET	919	#if EV_SELECT_IS_WINSOCKET
790	if (events)	920	if (events)
791	{	921	{
792	unsigned long arg;	922	unsigned long arg;
793	#ifdef EV_FD_TO_WIN32_HANDLE
794	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	923	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
795	#else
796	anfd->handle = _get_osfhandle (fd);
797	#endif
798	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	924	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
799	}	925	}
800	#endif	926	#endif
801		927
802	{	928	{
…		…
845	/* check whether the given fd is atcually valid, for error recovery */	971	/* check whether the given fd is atcually valid, for error recovery */
846	inline_size int	972	inline_size int
847	fd_valid (int fd)	973	fd_valid (int fd)
848	{	974	{
849	#ifdef _WIN32	975	#ifdef _WIN32
850	return _get_osfhandle (fd) != -1;	976	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851	#else	977	#else
852	return fcntl (fd, F_GETFD) != -1;	978	return fcntl (fd, F_GETFD) != -1;
853	#endif	979	#endif
854	}	980	}
855		981
…		…
873		999
874	for (fd = anfdmax; fd--; )	1000	for (fd = anfdmax; fd--; )
875	if (anfds [fd].events)	1001	if (anfds [fd].events)
876	{	1002	{
877	fd_kill (EV_A_ fd);	1003	fd_kill (EV_A_ fd);
878	return;	1004	break;
879	}	1005	}
880	}	1006	}
881		1007
882	/* usually called after fork if backend needs to re-arm all fds from scratch */	1008	/* usually called after fork if backend needs to re-arm all fds from scratch */
883	static void noinline	1009	static void noinline
…		…
888	for (fd = 0; fd < anfdmax; ++fd)	1014	for (fd = 0; fd < anfdmax; ++fd)
889	if (anfds [fd].events)	1015	if (anfds [fd].events)
890	{	1016	{
891	anfds [fd].events = 0;	1017	anfds [fd].events = 0;
892	anfds [fd].emask = 0;	1018	anfds [fd].emask = 0;
893	fd_change (EV_A_ fd, EV__IOFDSET \| 1);	1019	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
894	}	1020	}
895	}	1021	}
896		1022
897	/*****************************************************************************/	1023	/*****************************************************************************/
898		1024
…		…
973		1099
974	for (;;)	1100	for (;;)
975	{	1101	{
976	int c = k << 1;	1102	int c = k << 1;
977		1103
978	if (c > N + HEAP0 - 1)	1104	if (c >= N + HEAP0)
979	break;	1105	break;
980		1106
981	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1107	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
982	? 1 : 0;	1108	? 1 : 0;
983		1109
…		…
1019		1145
1020	/* move an element suitably so it is in a correct place */	1146	/* move an element suitably so it is in a correct place */
1021	inline_size void	1147	inline_size void
1022	adjustheap (ANHE *heap, int N, int k)	1148	adjustheap (ANHE *heap, int N, int k)
1023	{	1149	{
1024	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1150	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1025	upheap (heap, k);	1151	upheap (heap, k);
1026	else	1152	else
1027	downheap (heap, N, k);	1153	downheap (heap, N, k);
1028	}	1154	}
1029		1155
…		…
1042	/*****************************************************************************/	1168	/*****************************************************************************/
1043		1169
1044	/* associate signal watchers to a signal signal */	1170	/* associate signal watchers to a signal signal */
1045	typedef struct	1171	typedef struct
1046	{	1172	{
		1173	EV_ATOMIC_T pending;
		1174	#if EV_MULTIPLICITY
		1175	EV_P;
		1176	#endif
1047	WL head;	1177	WL head;
1048	EV_ATOMIC_T gotsig;
1049	} ANSIG;	1178	} ANSIG;
1050		1179
1051	static ANSIG *signals;	1180	static ANSIG signals [EV_NSIG - 1];
1052	static int signalmax;
1053
1054	static EV_ATOMIC_T gotsig;
1055		1181
1056	/*****************************************************************************/	1182	/*****************************************************************************/
1057		1183
1058	/* used to prepare libev internal fd's */	1184	/* used to prepare libev internal fd's */
1059	/* this is not fork-safe */	1185	/* this is not fork-safe */
1060	inline_speed void	1186	inline_speed void
1061	fd_intern (int fd)	1187	fd_intern (int fd)
1062	{	1188	{
1063	#ifdef _WIN32	1189	#ifdef _WIN32
1064	unsigned long arg = 1;	1190	unsigned long arg = 1;
1065	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1191	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1066	#else	1192	#else
1067	fcntl (fd, F_SETFD, FD_CLOEXEC);	1193	fcntl (fd, F_SETFD, FD_CLOEXEC);
1068	fcntl (fd, F_SETFL, O_NONBLOCK);	1194	fcntl (fd, F_SETFL, O_NONBLOCK);
1069	#endif	1195	#endif
1070	}	1196	}
…		…
1073	evpipe_init (EV_P)	1199	evpipe_init (EV_P)
1074	{	1200	{
1075	if (!ev_is_active (&pipe_w))	1201	if (!ev_is_active (&pipe_w))
1076	{	1202	{
1077	#if EV_USE_EVENTFD	1203	#if EV_USE_EVENTFD
		1204	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
		1205	if (evfd < 0 && errno == EINVAL)
1078	if ((evfd = eventfd (0, 0)) >= 0)	1206	evfd = eventfd (0, 0);
		1207
		1208	if (evfd >= 0)
1079	{	1209	{
1080	evpipe [0] = -1;	1210	evpipe [0] = -1;
1081	fd_intern (evfd);	1211	fd_intern (evfd); /* doing it twice doesn't hurt */
1082	ev_io_set (&pipe_w, evfd, EV_READ);	1212	ev_io_set (&pipe_w, evfd, EV_READ);
1083	}	1213	}
1084	else	1214	else
1085	#endif	1215	#endif
1086	{	1216	{
…		…
1123	/* called whenever the libev signal pipe */	1253	/* called whenever the libev signal pipe */
1124	/* got some events (signal, async) */	1254	/* got some events (signal, async) */
1125	static void	1255	static void
1126	pipecb (EV_P_ ev_io *iow, int revents)	1256	pipecb (EV_P_ ev_io *iow, int revents)
1127	{	1257	{
		1258	int i;
		1259
1128	#if EV_USE_EVENTFD	1260	#if EV_USE_EVENTFD
1129	if (evfd >= 0)	1261	if (evfd >= 0)
1130	{	1262	{
1131	uint64_t counter;	1263	uint64_t counter;
1132	read (evfd, &counter, sizeof (uint64_t));	1264	read (evfd, &counter, sizeof (uint64_t));
…		…
1136	{	1268	{
1137	char dummy;	1269	char dummy;
1138	read (evpipe [0], &dummy, 1);	1270	read (evpipe [0], &dummy, 1);
1139	}	1271	}
1140		1272
1141	if (gotsig && ev_is_default_loop (EV_A))	1273	if (sig_pending)
1142	{	1274	{
1143	int signum;	1275	sig_pending = 0;
1144	gotsig = 0;
1145		1276
1146	for (signum = signalmax; signum--; )	1277	for (i = EV_NSIG - 1; i--; )
1147	if (signals [signum].gotsig)	1278	if (expect_false (signals [i].pending))
1148	ev_feed_signal_event (EV_A_ signum + 1);	1279	ev_feed_signal_event (EV_A_ i + 1);
1149	}	1280	}
1150		1281
1151	#if EV_ASYNC_ENABLE	1282	#if EV_ASYNC_ENABLE
1152	if (gotasync)	1283	if (async_pending)
1153	{	1284	{
1154	int i;	1285	async_pending = 0;
1155	gotasync = 0;
1156		1286
1157	for (i = asynccnt; i--; )	1287	for (i = asynccnt; i--; )
1158	if (asyncs [i]->sent)	1288	if (asyncs [i]->sent)
1159	{	1289	{
1160	asyncs [i]->sent = 0;	1290	asyncs [i]->sent = 0;
…		…
1168		1298
1169	static void	1299	static void
1170	ev_sighandler (int signum)	1300	ev_sighandler (int signum)
1171	{	1301	{
1172	#if EV_MULTIPLICITY	1302	#if EV_MULTIPLICITY
1173	struct ev_loop *loop = &default_loop_struct;	1303	EV_P = signals [signum - 1].loop;
1174	#endif	1304	#endif
1175		1305
1176	#if _WIN32	1306	#ifdef _WIN32
1177	signal (signum, ev_sighandler);	1307	signal (signum, ev_sighandler);
1178	#endif	1308	#endif
1179		1309
1180	signals [signum - 1].gotsig = 1;	1310	signals [signum - 1].pending = 1;
1181	evpipe_write (EV_A_ &gotsig);	1311	evpipe_write (EV_A_ &sig_pending);
1182	}	1312	}
1183		1313
1184	void noinline	1314	void noinline
1185	ev_feed_signal_event (EV_P_ int signum)	1315	ev_feed_signal_event (EV_P_ int signum)
1186	{	1316	{
1187	WL w;	1317	WL w;
1188		1318
		1319	if (expect_false (signum <= 0 \|\| signum > EV_NSIG))
		1320	return;
		1321
		1322	--signum;
		1323
1189	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1190	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1325	/* it is permissible to try to feed a signal to the wrong loop */
1191	#endif	1326	/* or, likely more useful, feeding a signal nobody is waiting for */
1192		1327
1193	--signum;	1328	if (expect_false (signals [signum].loop != EV_A))
1194
1195	if (signum < 0 \|\| signum >= signalmax)
1196	return;	1329	return;
		1330	#endif
1197		1331
1198	signals [signum].gotsig = 0;	1332	signals [signum].pending = 0;
1199		1333
1200	for (w = signals [signum].head; w; w = w->next)	1334	for (w = signals [signum].head; w; w = w->next)
1201	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1335	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202	}	1336	}
		1337
		1338	#if EV_USE_SIGNALFD
		1339	static void
		1340	sigfdcb (EV_P_ ev_io *iow, int revents)
		1341	{
		1342	struct signalfd_siginfo si[2], sip; / these structs are big */
		1343
		1344	for (;;)
		1345	{
		1346	ssize_t res = read (sigfd, si, sizeof (si));
		1347
		1348	/* not ISO-C, as res might be -1, but works with SuS */
		1349	for (sip = si; (char )sip < (char )si + res; ++sip)
		1350	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1351
		1352	if (res < (ssize_t)sizeof (si))
		1353	break;
		1354	}
		1355	}
		1356	#endif
1203		1357
1204	/*****************************************************************************/	1358	/*****************************************************************************/
1205		1359
1206	static WL childs [EV_PID_HASHSIZE];	1360	static WL childs [EV_PID_HASHSIZE];
1207		1361
…		…
1352	ev_backend (EV_P)	1506	ev_backend (EV_P)
1353	{	1507	{
1354	return backend;	1508	return backend;
1355	}	1509	}
1356		1510
		1511	#if EV_MINIMAL < 2
1357	unsigned int	1512	unsigned int
1358	ev_loop_count (EV_P)	1513	ev_loop_count (EV_P)
1359	{	1514	{
1360	return loop_count;	1515	return loop_count;
1361	}	1516	}
…		…
1375	void	1530	void
1376	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1531	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1377	{	1532	{
1378	timeout_blocktime = interval;	1533	timeout_blocktime = interval;
1379	}	1534	}
		1535
		1536	void
		1537	ev_set_userdata (EV_P_ void *data)
		1538	{
		1539	userdata = data;
		1540	}
		1541
		1542	void *
		1543	ev_userdata (EV_P)
		1544	{
		1545	return userdata;
		1546	}
		1547
		1548	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1549	{
		1550	invoke_cb = invoke_pending_cb;
		1551	}
		1552
		1553	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
		1554	{
		1555	release_cb = release;
		1556	acquire_cb = acquire;
		1557	}
		1558	#endif
1380		1559
1381	/* initialise a loop structure, must be zero-initialised */	1560	/* initialise a loop structure, must be zero-initialised */
1382	static void noinline	1561	static void noinline
1383	loop_init (EV_P_ unsigned int flags)	1562	loop_init (EV_P_ unsigned int flags)
1384	{	1563	{
…		…
1402	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1581	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1403	have_monotonic = 1;	1582	have_monotonic = 1;
1404	}	1583	}
1405	#endif	1584	#endif
1406		1585
		1586	/* pid check not overridable via env */
		1587	#ifndef _WIN32
		1588	if (flags & EVFLAG_FORKCHECK)
		1589	curpid = getpid ();
		1590	#endif
		1591
		1592	if (!(flags & EVFLAG_NOENV)
		1593	&& !enable_secure ()
		1594	&& getenv ("LIBEV_FLAGS"))
		1595	flags = atoi (getenv ("LIBEV_FLAGS"));
		1596
1407	ev_rt_now = ev_time ();	1597	ev_rt_now = ev_time ();
1408	mn_now = get_clock ();	1598	mn_now = get_clock ();
1409	now_floor = mn_now;	1599	now_floor = mn_now;
1410	rtmn_diff = ev_rt_now - mn_now;	1600	rtmn_diff = ev_rt_now - mn_now;
		1601	#if EV_MINIMAL < 2
		1602	invoke_cb = ev_invoke_pending;
		1603	#endif
1411		1604
1412	io_blocktime = 0.;	1605	io_blocktime = 0.;
1413	timeout_blocktime = 0.;	1606	timeout_blocktime = 0.;
1414	backend = 0;	1607	backend = 0;
1415	backend_fd = -1;	1608	backend_fd = -1;
1416	gotasync = 0;	1609	sig_pending = 0;
		1610	#if EV_ASYNC_ENABLE
		1611	async_pending = 0;
		1612	#endif
1417	#if EV_USE_INOTIFY	1613	#if EV_USE_INOTIFY
1418	fs_fd = -2;	1614	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1419	#endif	1615	#endif
1420		1616	#if EV_USE_SIGNALFD
1421	/* pid check not overridable via env */	1617	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1422	#ifndef _WIN32
1423	if (flags & EVFLAG_FORKCHECK)
1424	curpid = getpid ();
1425	#endif	1618	#endif
1426
1427	if (!(flags & EVFLAG_NOENV)
1428	&& !enable_secure ()
1429	&& getenv ("LIBEV_FLAGS"))
1430	flags = atoi (getenv ("LIBEV_FLAGS"));
1431		1619
1432	if (!(flags & 0x0000ffffU))	1620	if (!(flags & 0x0000ffffU))
1433	flags \|= ev_recommended_backends ();	1621	flags \|= ev_recommended_backends ();
1434		1622
1435	#if EV_USE_PORT	1623	#if EV_USE_PORT
…		…
1461	{	1649	{
1462	int i;	1650	int i;
1463		1651
1464	if (ev_is_active (&pipe_w))	1652	if (ev_is_active (&pipe_w))
1465	{	1653	{
1466	ev_ref (EV_A); /* signal watcher */	1654	/ev_ref (EV_A);/
1467	ev_io_stop (EV_A_ &pipe_w);	1655	/ev_io_stop (EV_A_ &pipe_w);/
1468		1656
1469	#if EV_USE_EVENTFD	1657	#if EV_USE_EVENTFD
1470	if (evfd >= 0)	1658	if (evfd >= 0)
1471	close (evfd);	1659	close (evfd);
1472	#endif	1660	#endif
1473		1661
1474	if (evpipe [0] >= 0)	1662	if (evpipe [0] >= 0)
1475	{	1663	{
1476	close (evpipe [0]);	1664	EV_WIN32_CLOSE_FD (evpipe [0]);
1477	close (evpipe [1]);	1665	EV_WIN32_CLOSE_FD (evpipe [1]);
1478	}	1666	}
1479	}	1667	}
		1668
		1669	#if EV_USE_SIGNALFD
		1670	if (ev_is_active (&sigfd_w))
		1671	close (sigfd);
		1672	#endif
1480		1673
1481	#if EV_USE_INOTIFY	1674	#if EV_USE_INOTIFY
1482	if (fs_fd >= 0)	1675	if (fs_fd >= 0)
1483	close (fs_fd);	1676	close (fs_fd);
1484	#endif	1677	#endif
…		…
1508	#if EV_IDLE_ENABLE	1701	#if EV_IDLE_ENABLE
1509	array_free (idle, [i]);	1702	array_free (idle, [i]);
1510	#endif	1703	#endif
1511	}	1704	}
1512		1705
1513	ev_free (anfds); anfdmax = 0;	1706	ev_free (anfds); anfds = 0; anfdmax = 0;
1514		1707
1515	/* have to use the microsoft-never-gets-it-right macro */	1708	/* have to use the microsoft-never-gets-it-right macro */
1516	array_free (rfeed, EMPTY);	1709	array_free (rfeed, EMPTY);
1517	array_free (fdchange, EMPTY);	1710	array_free (fdchange, EMPTY);
1518	array_free (timer, EMPTY);	1711	array_free (timer, EMPTY);
…		…
1553		1746
1554	if (ev_is_active (&pipe_w))	1747	if (ev_is_active (&pipe_w))
1555	{	1748	{
1556	/* this "locks" the handlers against writing to the pipe */	1749	/* this "locks" the handlers against writing to the pipe */
1557	/* while we modify the fd vars */	1750	/* while we modify the fd vars */
1558	gotsig = 1;	1751	sig_pending = 1;
1559	#if EV_ASYNC_ENABLE	1752	#if EV_ASYNC_ENABLE
1560	gotasync = 1;	1753	async_pending = 1;
1561	#endif	1754	#endif
1562		1755
1563	ev_ref (EV_A);	1756	ev_ref (EV_A);
1564	ev_io_stop (EV_A_ &pipe_w);	1757	ev_io_stop (EV_A_ &pipe_w);
1565		1758
…		…
1568	close (evfd);	1761	close (evfd);
1569	#endif	1762	#endif
1570		1763
1571	if (evpipe [0] >= 0)	1764	if (evpipe [0] >= 0)
1572	{	1765	{
1573	close (evpipe [0]);	1766	EV_WIN32_CLOSE_FD (evpipe [0]);
1574	close (evpipe [1]);	1767	EV_WIN32_CLOSE_FD (evpipe [1]);
1575	}	1768	}
1576		1769
1577	evpipe_init (EV_A);	1770	evpipe_init (EV_A);
1578	/* now iterate over everything, in case we missed something */	1771	/* now iterate over everything, in case we missed something */
1579	pipecb (EV_A_ &pipe_w, EV_READ);	1772	pipecb (EV_A_ &pipe_w, EV_READ);
…		…
1585	#if EV_MULTIPLICITY	1778	#if EV_MULTIPLICITY
1586		1779
1587	struct ev_loop *	1780	struct ev_loop *
1588	ev_loop_new (unsigned int flags)	1781	ev_loop_new (unsigned int flags)
1589	{	1782	{
1590	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1783	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1591		1784
1592	memset (loop, 0, sizeof (struct ev_loop));	1785	memset (EV_A, 0, sizeof (struct ev_loop));
1593
1594	loop_init (EV_A_ flags);	1786	loop_init (EV_A_ flags);
1595		1787
1596	if (ev_backend (EV_A))	1788	if (ev_backend (EV_A))
1597	return loop;	1789	return EV_A;
1598		1790
1599	return 0;	1791	return 0;
1600	}	1792	}
1601		1793
1602	void	1794	void
…		…
1609	void	1801	void
1610	ev_loop_fork (EV_P)	1802	ev_loop_fork (EV_P)
1611	{	1803	{
1612	postfork = 1; /* must be in line with ev_default_fork */	1804	postfork = 1; /* must be in line with ev_default_fork */
1613	}	1805	}
		1806	#endif /* multiplicity */
1614		1807
1615	#if EV_VERIFY	1808	#if EV_VERIFY
1616	static void noinline	1809	static void noinline
1617	verify_watcher (EV_P_ W w)	1810	verify_watcher (EV_P_ W w)
1618	{	1811	{
…		…
1646	verify_watcher (EV_A_ ws [cnt]);	1839	verify_watcher (EV_A_ ws [cnt]);
1647	}	1840	}
1648	}	1841	}
1649	#endif	1842	#endif
1650		1843
		1844	#if EV_MINIMAL < 2
1651	void	1845	void
1652	ev_loop_verify (EV_P)	1846	ev_loop_verify (EV_P)
1653	{	1847	{
1654	#if EV_VERIFY	1848	#if EV_VERIFY
1655	int i;	1849	int i;
…		…
1704	assert (checkmax >= checkcnt);	1898	assert (checkmax >= checkcnt);
1705	array_verify (EV_A_ (W *)checks, checkcnt);	1899	array_verify (EV_A_ (W *)checks, checkcnt);
1706		1900
1707	# if 0	1901	# if 0
1708	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1902	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
1709	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1903	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1710	# endif
1711	#endif	1904	# endif
		1905	#endif
1712	}	1906	}
1713		1907	#endif
1714	#endif /* multiplicity */
1715		1908
1716	#if EV_MULTIPLICITY	1909	#if EV_MULTIPLICITY
1717	struct ev_loop *	1910	struct ev_loop *
1718	ev_default_loop_init (unsigned int flags)	1911	ev_default_loop_init (unsigned int flags)
1719	#else	1912	#else
…		…
1722	#endif	1915	#endif
1723	{	1916	{
1724	if (!ev_default_loop_ptr)	1917	if (!ev_default_loop_ptr)
1725	{	1918	{
1726	#if EV_MULTIPLICITY	1919	#if EV_MULTIPLICITY
1727	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1920	EV_P = ev_default_loop_ptr = &default_loop_struct;
1728	#else	1921	#else
1729	ev_default_loop_ptr = 1;	1922	ev_default_loop_ptr = 1;
1730	#endif	1923	#endif
1731		1924
1732	loop_init (EV_A_ flags);	1925	loop_init (EV_A_ flags);
…		…
1749		1942
1750	void	1943	void
1751	ev_default_destroy (void)	1944	ev_default_destroy (void)
1752	{	1945	{
1753	#if EV_MULTIPLICITY	1946	#if EV_MULTIPLICITY
1754	struct ev_loop *loop = ev_default_loop_ptr;	1947	EV_P = ev_default_loop_ptr;
1755	#endif	1948	#endif
1756		1949
1757	ev_default_loop_ptr = 0;	1950	ev_default_loop_ptr = 0;
1758		1951
1759	#ifndef _WIN32	1952	#ifndef _WIN32
…		…
1766		1959
1767	void	1960	void
1768	ev_default_fork (void)	1961	ev_default_fork (void)
1769	{	1962	{
1770	#if EV_MULTIPLICITY	1963	#if EV_MULTIPLICITY
1771	struct ev_loop *loop = ev_default_loop_ptr;	1964	EV_P = ev_default_loop_ptr;
1772	#endif	1965	#endif
1773		1966
1774	postfork = 1; /* must be in line with ev_loop_fork */	1967	postfork = 1; /* must be in line with ev_loop_fork */
1775	}	1968	}
1776		1969
…		…
1780	ev_invoke (EV_P_ void *w, int revents)	1973	ev_invoke (EV_P_ void *w, int revents)
1781	{	1974	{
1782	EV_CB_INVOKE ((W)w, revents);	1975	EV_CB_INVOKE ((W)w, revents);
1783	}	1976	}
1784		1977
1785	inline_speed void	1978	unsigned int
1786	call_pending (EV_P)	1979	ev_pending_count (EV_P)
		1980	{
		1981	int pri;
		1982	unsigned int count = 0;
		1983
		1984	for (pri = NUMPRI; pri--; )
		1985	count += pendingcnt [pri];
		1986
		1987	return count;
		1988	}
		1989
		1990	void noinline
		1991	ev_invoke_pending (EV_P)
1787	{	1992	{
1788	int pri;	1993	int pri;
1789		1994
1790	for (pri = NUMPRI; pri--; )	1995	for (pri = NUMPRI; pri--; )
1791	while (pendingcnt [pri])	1996	while (pendingcnt [pri])
…		…
1959	ANHE_at_cache (*he);	2164	ANHE_at_cache (*he);
1960	}	2165	}
1961	}	2166	}
1962		2167
1963	/* fetch new monotonic and realtime times from the kernel */	2168	/* fetch new monotonic and realtime times from the kernel */
1964	/* also detetc if there was a timejump, and act accordingly */	2169	/* also detect if there was a timejump, and act accordingly */
1965	inline_speed void	2170	inline_speed void
1966	time_update (EV_P_ ev_tstamp max_block)	2171	time_update (EV_P_ ev_tstamp max_block)
1967	{	2172	{
1968	#if EV_USE_MONOTONIC	2173	#if EV_USE_MONOTONIC
1969	if (expect_true (have_monotonic))	2174	if (expect_true (have_monotonic))
…		…
2029	}	2234	}
2030		2235
2031	void	2236	void
2032	ev_loop (EV_P_ int flags)	2237	ev_loop (EV_P_ int flags)
2033	{	2238	{
		2239	#if EV_MINIMAL < 2
2034	++loop_depth;	2240	++loop_depth;
		2241	#endif
		2242
		2243	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2035		2244
2036	loop_done = EVUNLOOP_CANCEL;	2245	loop_done = EVUNLOOP_CANCEL;
2037		2246
2038	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2247	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2039		2248
2040	do	2249	do
2041	{	2250	{
2042	#if EV_VERIFY >= 2	2251	#if EV_VERIFY >= 2
2043	ev_loop_verify (EV_A);	2252	ev_loop_verify (EV_A);
…		…
2056	/* we might have forked, so queue fork handlers */	2265	/* we might have forked, so queue fork handlers */
2057	if (expect_false (postfork))	2266	if (expect_false (postfork))
2058	if (forkcnt)	2267	if (forkcnt)
2059	{	2268	{
2060	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2269	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2061	call_pending (EV_A);	2270	EV_INVOKE_PENDING;
2062	}	2271	}
2063	#endif	2272	#endif
2064		2273
2065	/* queue prepare watchers (and execute them) */	2274	/* queue prepare watchers (and execute them) */
2066	if (expect_false (preparecnt))	2275	if (expect_false (preparecnt))
2067	{	2276	{
2068	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2277	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2069	call_pending (EV_A);	2278	EV_INVOKE_PENDING;
2070	}	2279	}
		2280
		2281	if (expect_false (loop_done))
		2282	break;
2071		2283
2072	/* we might have forked, so reify kernel state if necessary */	2284	/* we might have forked, so reify kernel state if necessary */
2073	if (expect_false (postfork))	2285	if (expect_false (postfork))
2074	loop_fork (EV_A);	2286	loop_fork (EV_A);
2075		2287
…		…
2123	waittime -= sleeptime;	2335	waittime -= sleeptime;
2124	}	2336	}
2125	}	2337	}
2126	}	2338	}
2127		2339
		2340	#if EV_MINIMAL < 2
2128	++loop_count;	2341	++loop_count;
		2342	#endif
		2343	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2129	backend_poll (EV_A_ waittime);	2344	backend_poll (EV_A_ waittime);
		2345	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2130		2346
2131	/* update ev_rt_now, do magic */	2347	/* update ev_rt_now, do magic */
2132	time_update (EV_A_ waittime + sleeptime);	2348	time_update (EV_A_ waittime + sleeptime);
2133	}	2349	}
2134		2350
…		…
2145		2361
2146	/* queue check watchers, to be executed first */	2362	/* queue check watchers, to be executed first */
2147	if (expect_false (checkcnt))	2363	if (expect_false (checkcnt))
2148	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2364	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2149		2365
2150	call_pending (EV_A);	2366	EV_INVOKE_PENDING;
2151	}	2367	}
2152	while (expect_true (	2368	while (expect_true (
2153	activecnt	2369	activecnt
2154	&& !loop_done	2370	&& !loop_done
2155	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))	2371	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
2156	));	2372	));
2157		2373
2158	if (loop_done == EVUNLOOP_ONE)	2374	if (loop_done == EVUNLOOP_ONE)
2159	loop_done = EVUNLOOP_CANCEL;	2375	loop_done = EVUNLOOP_CANCEL;
2160		2376
		2377	#if EV_MINIMAL < 2
2161	--loop_depth;	2378	--loop_depth;
		2379	#endif
2162	}	2380	}
2163		2381
2164	void	2382	void
2165	ev_unloop (EV_P_ int how)	2383	ev_unloop (EV_P_ int how)
2166	{	2384	{
…		…
2217	inline_size void	2435	inline_size void
2218	wlist_del (WL *head, WL elem)	2436	wlist_del (WL *head, WL elem)
2219	{	2437	{
2220	while (*head)	2438	while (*head)
2221	{	2439	{
2222	if (*head == elem)	2440	if (expect_true (*head == elem))
2223	{	2441	{
2224	*head = elem->next;	2442	*head = elem->next;
2225	return;	2443	break;
2226	}	2444	}
2227		2445
2228	head = &(*head)->next;	2446	head = &(*head)->next;
2229	}	2447	}
2230	}	2448	}
…		…
2258	}	2476	}
2259		2477
2260	inline_size void	2478	inline_size void
2261	pri_adjust (EV_P_ W w)	2479	pri_adjust (EV_P_ W w)
2262	{	2480	{
2263	int pri = w->priority;	2481	int pri = ev_priority (w);
2264	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2482	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2265	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2483	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2266	w->priority = pri;	2484	ev_set_priority (w, pri);
2267	}	2485	}
2268		2486
2269	inline_speed void	2487	inline_speed void
2270	ev_start (EV_P_ W w, int active)	2488	ev_start (EV_P_ W w, int active)
2271	{	2489	{
…		…
2290		2508
2291	if (expect_false (ev_is_active (w)))	2509	if (expect_false (ev_is_active (w)))
2292	return;	2510	return;
2293		2511
2294	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2512	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2295	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));	2513	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2296		2514
2297	EV_FREQUENT_CHECK;	2515	EV_FREQUENT_CHECK;
2298		2516
2299	ev_start (EV_A_ (W)w, 1);	2517	ev_start (EV_A_ (W)w, 1);
2300	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2518	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2301	wlist_add (&anfds[fd].head, (WL)w);	2519	wlist_add (&anfds[fd].head, (WL)w);
2302		2520
2303	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| 1);	2521	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| EV_ANFD_REIFY);
2304	w->events &= ~EV__IOFDSET;	2522	w->events &= ~EV__IOFDSET;
2305		2523
2306	EV_FREQUENT_CHECK;	2524	EV_FREQUENT_CHECK;
2307	}	2525	}
2308		2526
…		…
2370	timers [active] = timers [timercnt + HEAP0];	2588	timers [active] = timers [timercnt + HEAP0];
2371	adjustheap (timers, timercnt, active);	2589	adjustheap (timers, timercnt, active);
2372	}	2590	}
2373	}	2591	}
2374		2592
2375	EV_FREQUENT_CHECK;
2376
2377	ev_at (w) -= mn_now;	2593	ev_at (w) -= mn_now;
2378		2594
2379	ev_stop (EV_A_ (W)w);	2595	ev_stop (EV_A_ (W)w);
		2596
		2597	EV_FREQUENT_CHECK;
2380	}	2598	}
2381		2599
2382	void noinline	2600	void noinline
2383	ev_timer_again (EV_P_ ev_timer *w)	2601	ev_timer_again (EV_P_ ev_timer *w)
2384	{	2602	{
…		…
2402	}	2620	}
2403		2621
2404	EV_FREQUENT_CHECK;	2622	EV_FREQUENT_CHECK;
2405	}	2623	}
2406		2624
		2625	ev_tstamp
		2626	ev_timer_remaining (EV_P_ ev_timer *w)
		2627	{
		2628	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2629	}
		2630
2407	#if EV_PERIODIC_ENABLE	2631	#if EV_PERIODIC_ENABLE
2408	void noinline	2632	void noinline
2409	ev_periodic_start (EV_P_ ev_periodic *w)	2633	ev_periodic_start (EV_P_ ev_periodic *w)
2410	{	2634	{
2411	if (expect_false (ev_is_active (w)))	2635	if (expect_false (ev_is_active (w)))
…		…
2457	periodics [active] = periodics [periodiccnt + HEAP0];	2681	periodics [active] = periodics [periodiccnt + HEAP0];
2458	adjustheap (periodics, periodiccnt, active);	2682	adjustheap (periodics, periodiccnt, active);
2459	}	2683	}
2460	}	2684	}
2461		2685
2462	EV_FREQUENT_CHECK;
2463
2464	ev_stop (EV_A_ (W)w);	2686	ev_stop (EV_A_ (W)w);
		2687
		2688	EV_FREQUENT_CHECK;
2465	}	2689	}
2466		2690
2467	void noinline	2691	void noinline
2468	ev_periodic_again (EV_P_ ev_periodic *w)	2692	ev_periodic_again (EV_P_ ev_periodic *w)
2469	{	2693	{
…		…
2478	#endif	2702	#endif
2479		2703
2480	void noinline	2704	void noinline
2481	ev_signal_start (EV_P_ ev_signal *w)	2705	ev_signal_start (EV_P_ ev_signal *w)
2482	{	2706	{
2483	#if EV_MULTIPLICITY
2484	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2485	#endif
2486	if (expect_false (ev_is_active (w)))	2707	if (expect_false (ev_is_active (w)))
2487	return;	2708	return;
2488		2709
2489	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2710	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2490		2711
2491	evpipe_init (EV_A);	2712	#if EV_MULTIPLICITY
		2713	assert (("libev: a signal must not be attached to two different loops",
		2714	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));
2492		2715
2493	EV_FREQUENT_CHECK;	2716	signals [w->signum - 1].loop = EV_A;
		2717	#endif
2494		2718
		2719	EV_FREQUENT_CHECK;
		2720
		2721	#if EV_USE_SIGNALFD
		2722	if (sigfd == -2)
2495	{	2723	{
2496	#ifndef _WIN32	2724	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK \| SFD_CLOEXEC);
2497	sigset_t full, prev;	2725	if (sigfd < 0 && errno == EINVAL)
2498	sigfillset (&full);	2726	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2499	sigprocmask (SIG_SETMASK, &full, &prev);
2500	#endif
2501		2727
2502	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2728	if (sigfd >= 0)
		2729	{
		2730	fd_intern (sigfd); /* doing it twice will not hurt */
2503		2731
2504	#ifndef _WIN32	2732	sigemptyset (&sigfd_set);
2505	sigprocmask (SIG_SETMASK, &prev, 0);	2733
2506	#endif	2734	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2735	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2736	ev_io_start (EV_A_ &sigfd_w);
		2737	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2738	}
2507	}	2739	}
		2740
		2741	if (sigfd >= 0)
		2742	{
		2743	/* TODO: check .head */
		2744	sigaddset (&sigfd_set, w->signum);
		2745	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2746
		2747	signalfd (sigfd, &sigfd_set, 0);
		2748	}
		2749	#endif
2508		2750
2509	ev_start (EV_A_ (W)w, 1);	2751	ev_start (EV_A_ (W)w, 1);
2510	wlist_add (&signals [w->signum - 1].head, (WL)w);	2752	wlist_add (&signals [w->signum - 1].head, (WL)w);
2511		2753
2512	if (!((WL)w)->next)	2754	if (!((WL)w)->next)
		2755	# if EV_USE_SIGNALFD
		2756	if (sigfd < 0) /TODO/
		2757	# endif
2513	{	2758	{
2514	#if _WIN32	2759	# ifdef _WIN32
		2760	evpipe_init (EV_A);
		2761
2515	signal (w->signum, ev_sighandler);	2762	signal (w->signum, ev_sighandler);
2516	#else	2763	# else
2517	struct sigaction sa;	2764	struct sigaction sa;
		2765
		2766	evpipe_init (EV_A);
		2767
2518	sa.sa_handler = ev_sighandler;	2768	sa.sa_handler = ev_sighandler;
2519	sigfillset (&sa.sa_mask);	2769	sigfillset (&sa.sa_mask);
2520	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2770	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2521	sigaction (w->signum, &sa, 0);	2771	sigaction (w->signum, &sa, 0);
		2772
		2773	sigemptyset (&sa.sa_mask);
		2774	sigaddset (&sa.sa_mask, w->signum);
		2775	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2522	#endif	2776	#endif
2523	}	2777	}
2524		2778
2525	EV_FREQUENT_CHECK;	2779	EV_FREQUENT_CHECK;
2526	}	2780	}
2527		2781
2528	void noinline	2782	void noinline
…		…
2536		2790
2537	wlist_del (&signals [w->signum - 1].head, (WL)w);	2791	wlist_del (&signals [w->signum - 1].head, (WL)w);
2538	ev_stop (EV_A_ (W)w);	2792	ev_stop (EV_A_ (W)w);
2539		2793
2540	if (!signals [w->signum - 1].head)	2794	if (!signals [w->signum - 1].head)
		2795	{
		2796	#if EV_MULTIPLICITY
		2797	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2798	#endif
		2799	#if EV_USE_SIGNALFD
		2800	if (sigfd >= 0)
		2801	{
		2802	sigset_t ss;
		2803
		2804	sigemptyset (&ss);
		2805	sigaddset (&ss, w->signum);
		2806	sigdelset (&sigfd_set, w->signum);
		2807
		2808	signalfd (sigfd, &sigfd_set, 0);
		2809	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2810	}
		2811	else
		2812	#endif
2541	signal (w->signum, SIG_DFL);	2813	signal (w->signum, SIG_DFL);
		2814	}
2542		2815
2543	EV_FREQUENT_CHECK;	2816	EV_FREQUENT_CHECK;
2544	}	2817	}
2545		2818
2546	void	2819	void
…		…
2587	#define MIN_STAT_INTERVAL 0.1074891	2860	#define MIN_STAT_INTERVAL 0.1074891
2588		2861
2589	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2862	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2590		2863
2591	#if EV_USE_INOTIFY	2864	#if EV_USE_INOTIFY
2592	# define EV_INOTIFY_BUFSIZE 8192	2865
		2866	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2867	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2593		2868
2594	static void noinline	2869	static void noinline
2595	infy_add (EV_P_ ev_stat *w)	2870	infy_add (EV_P_ ev_stat *w)
2596	{	2871	{
2597	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);	2872	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);
2598		2873
2599	if (w->wd < 0)	2874	if (w->wd >= 0)
		2875	{
		2876	struct statfs sfs;
		2877
		2878	/* now local changes will be tracked by inotify, but remote changes won't */
		2879	/* unless the filesystem is known to be local, we therefore still poll */
		2880	/* also do poll on <2.6.25, but with normal frequency */
		2881
		2882	if (!fs_2625)
		2883	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2884	else if (!statfs (w->path, &sfs)
		2885	&& (sfs.f_type == 0x1373 /* devfs */
		2886	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2887	\|\| sfs.f_type == 0x3153464a /* jfs */
		2888	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2889	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2890	\|\| sfs.f_type == 0x58465342 /* xfs */))
		2891	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2892	else
		2893	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2600	{	2894	}
		2895	else
		2896	{
		2897	/* can't use inotify, continue to stat */
2601	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2898	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2602	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2603		2899
2604	/* monitor some parent directory for speedup hints */	2900	/* if path is not there, monitor some parent directory for speedup hints */
2605	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2901	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2606	/* but an efficiency issue only */	2902	/* but an efficiency issue only */
2607	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2903	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2608	{	2904	{
2609	char path [4096];	2905	char path [4096];
…		…
2625	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2921	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2626	}	2922	}
2627	}	2923	}
2628		2924
2629	if (w->wd >= 0)	2925	if (w->wd >= 0)
2630	{
2631	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2926	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2632		2927
2633	/* now local changes will be tracked by inotify, but remote changes won't */	2928	/* now re-arm timer, if required */
2634	/* unless the filesystem it known to be local, we therefore still poll */	2929	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2635	/* also do poll on <2.6.25, but with normal frequency */
2636	struct statfs sfs;
2637
2638	if (fs_2625 && !statfs (w->path, &sfs))
2639	if (sfs.f_type == 0x1373 /* devfs */
2640	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2641	\|\| sfs.f_type == 0x3153464a /* jfs */
2642	\|\| sfs.f_type == 0x52654973 /* reiser3 */
2643	\|\| sfs.f_type == 0x01021994 /* tempfs */
2644	\|\| sfs.f_type == 0x58465342 /* xfs */)
2645	return;
2646
2647	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2648	ev_timer_again (EV_A_ &w->timer);	2930	ev_timer_again (EV_A_ &w->timer);
2649	}	2931	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2650	}	2932	}
2651		2933
2652	static void noinline	2934	static void noinline
2653	infy_del (EV_P_ ev_stat *w)	2935	infy_del (EV_P_ ev_stat *w)
2654	{	2936	{
…		…
2699		2981
2700	static void	2982	static void
2701	infy_cb (EV_P_ ev_io *w, int revents)	2983	infy_cb (EV_P_ ev_io *w, int revents)
2702	{	2984	{
2703	char buf [EV_INOTIFY_BUFSIZE];	2985	char buf [EV_INOTIFY_BUFSIZE];
2704	struct inotify_event ev = (struct inotify_event )buf;
2705	int ofs;	2986	int ofs;
2706	int len = read (fs_fd, buf, sizeof (buf));	2987	int len = read (fs_fd, buf, sizeof (buf));
2707		2988
2708	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2989	for (ofs = 0; ofs < len; )
		2990	{
		2991	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2709	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2992	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2993	ofs += sizeof (struct inotify_event) + ev->len;
		2994	}
2710	}	2995	}
2711		2996
2712	inline_size void	2997	inline_size void
2713	check_2625 (EV_P)	2998	check_2625 (EV_P)
2714	{	2999	{
…		…
2730	return;	3015	return;
2731		3016
2732	fs_2625 = 1;	3017	fs_2625 = 1;
2733	}	3018	}
2734		3019
		3020	inline_size int
		3021	infy_newfd (void)
		3022	{
		3023	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3024	int fd = inotify_init1 (IN_CLOEXEC \| IN_NONBLOCK);
		3025	if (fd >= 0)
		3026	return fd;
		3027	#endif
		3028	return inotify_init ();
		3029	}
		3030
2735	inline_size void	3031	inline_size void
2736	infy_init (EV_P)	3032	infy_init (EV_P)
2737	{	3033	{
2738	if (fs_fd != -2)	3034	if (fs_fd != -2)
2739	return;	3035	return;
2740		3036
2741	fs_fd = -1;	3037	fs_fd = -1;
2742		3038
2743	check_2625 (EV_A);	3039	check_2625 (EV_A);
2744		3040
2745	fs_fd = inotify_init ();	3041	fs_fd = infy_newfd ();
2746		3042
2747	if (fs_fd >= 0)	3043	if (fs_fd >= 0)
2748	{	3044	{
		3045	fd_intern (fs_fd);
2749	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3046	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2750	ev_set_priority (&fs_w, EV_MAXPRI);	3047	ev_set_priority (&fs_w, EV_MAXPRI);
2751	ev_io_start (EV_A_ &fs_w);	3048	ev_io_start (EV_A_ &fs_w);
		3049	ev_unref (EV_A);
2752	}	3050	}
2753	}	3051	}
2754		3052
2755	inline_size void	3053	inline_size void
2756	infy_fork (EV_P)	3054	infy_fork (EV_P)
…		…
2758	int slot;	3056	int slot;
2759		3057
2760	if (fs_fd < 0)	3058	if (fs_fd < 0)
2761	return;	3059	return;
2762		3060
		3061	ev_ref (EV_A);
		3062	ev_io_stop (EV_A_ &fs_w);
2763	close (fs_fd);	3063	close (fs_fd);
2764	fs_fd = inotify_init ();	3064	fs_fd = infy_newfd ();
		3065
		3066	if (fs_fd >= 0)
		3067	{
		3068	fd_intern (fs_fd);
		3069	ev_io_set (&fs_w, fs_fd, EV_READ);
		3070	ev_io_start (EV_A_ &fs_w);
		3071	ev_unref (EV_A);
		3072	}
2765		3073
2766	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3074	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2767	{	3075	{
2768	WL w_ = fs_hash [slot].head;	3076	WL w_ = fs_hash [slot].head;
2769	fs_hash [slot].head = 0;	3077	fs_hash [slot].head = 0;
…		…
2776	w->wd = -1;	3084	w->wd = -1;
2777		3085
2778	if (fs_fd >= 0)	3086	if (fs_fd >= 0)
2779	infy_add (EV_A_ w); /* re-add, no matter what */	3087	infy_add (EV_A_ w); /* re-add, no matter what */
2780	else	3088	else
		3089	{
		3090	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3091	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2781	ev_timer_again (EV_A_ &w->timer);	3092	ev_timer_again (EV_A_ &w->timer);
		3093	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3094	}
2782	}	3095	}
2783	}	3096	}
2784	}	3097	}
2785		3098
2786	#endif	3099	#endif
…		…
2803	static void noinline	3116	static void noinline
2804	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3117	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2805	{	3118	{
2806	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3119	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
2807		3120
2808	/* we copy this here each the time so that */	3121	ev_statdata prev = w->attr;
2809	/* prev has the old value when the callback gets invoked */
2810	w->prev = w->attr;
2811	ev_stat_stat (EV_A_ w);	3122	ev_stat_stat (EV_A_ w);
2812		3123
2813	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3124	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2814	if (	3125	if (
2815	w->prev.st_dev != w->attr.st_dev	3126	prev.st_dev != w->attr.st_dev
2816	\|\| w->prev.st_ino != w->attr.st_ino	3127	\|\| prev.st_ino != w->attr.st_ino
2817	\|\| w->prev.st_mode != w->attr.st_mode	3128	\|\| prev.st_mode != w->attr.st_mode
2818	\|\| w->prev.st_nlink != w->attr.st_nlink	3129	\|\| prev.st_nlink != w->attr.st_nlink
2819	\|\| w->prev.st_uid != w->attr.st_uid	3130	\|\| prev.st_uid != w->attr.st_uid
2820	\|\| w->prev.st_gid != w->attr.st_gid	3131	\|\| prev.st_gid != w->attr.st_gid
2821	\|\| w->prev.st_rdev != w->attr.st_rdev	3132	\|\| prev.st_rdev != w->attr.st_rdev
2822	\|\| w->prev.st_size != w->attr.st_size	3133	\|\| prev.st_size != w->attr.st_size
2823	\|\| w->prev.st_atime != w->attr.st_atime	3134	\|\| prev.st_atime != w->attr.st_atime
2824	\|\| w->prev.st_mtime != w->attr.st_mtime	3135	\|\| prev.st_mtime != w->attr.st_mtime
2825	\|\| w->prev.st_ctime != w->attr.st_ctime	3136	\|\| prev.st_ctime != w->attr.st_ctime
2826	) {	3137	) {
		3138	/* we only update w->prev on actual differences */
		3139	/* in case we test more often than invoke the callback, */
		3140	/* to ensure that prev is always different to attr */
		3141	w->prev = prev;
		3142
2827	#if EV_USE_INOTIFY	3143	#if EV_USE_INOTIFY
2828	if (fs_fd >= 0)	3144	if (fs_fd >= 0)
2829	{	3145	{
2830	infy_del (EV_A_ w);	3146	infy_del (EV_A_ w);
2831	infy_add (EV_A_ w);	3147	infy_add (EV_A_ w);
…		…
2856		3172
2857	if (fs_fd >= 0)	3173	if (fs_fd >= 0)
2858	infy_add (EV_A_ w);	3174	infy_add (EV_A_ w);
2859	else	3175	else
2860	#endif	3176	#endif
		3177	{
2861	ev_timer_again (EV_A_ &w->timer);	3178	ev_timer_again (EV_A_ &w->timer);
		3179	ev_unref (EV_A);
		3180	}
2862		3181
2863	ev_start (EV_A_ (W)w, 1);	3182	ev_start (EV_A_ (W)w, 1);
2864		3183
2865	EV_FREQUENT_CHECK;	3184	EV_FREQUENT_CHECK;
2866	}	3185	}
…		…
2875	EV_FREQUENT_CHECK;	3194	EV_FREQUENT_CHECK;
2876		3195
2877	#if EV_USE_INOTIFY	3196	#if EV_USE_INOTIFY
2878	infy_del (EV_A_ w);	3197	infy_del (EV_A_ w);
2879	#endif	3198	#endif
		3199
		3200	if (ev_is_active (&w->timer))
		3201	{
		3202	ev_ref (EV_A);
2880	ev_timer_stop (EV_A_ &w->timer);	3203	ev_timer_stop (EV_A_ &w->timer);
		3204	}
2881		3205
2882	ev_stop (EV_A_ (W)w);	3206	ev_stop (EV_A_ (W)w);
2883		3207
2884	EV_FREQUENT_CHECK;	3208	EV_FREQUENT_CHECK;
2885	}	3209	}
…		…
3026	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3350	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3027	{	3351	{
3028	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));	3352	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
3029		3353
3030	{	3354	{
3031	struct ev_loop *loop = w->other;	3355	EV_P = w->other;
3032		3356
3033	while (fdchangecnt)	3357	while (fdchangecnt)
3034	{	3358	{
3035	fd_reify (EV_A);	3359	fd_reify (EV_A);
3036	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3360	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3044	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));	3368	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
3045		3369
3046	ev_embed_stop (EV_A_ w);	3370	ev_embed_stop (EV_A_ w);
3047		3371
3048	{	3372	{
3049	struct ev_loop *loop = w->other;	3373	EV_P = w->other;
3050		3374
3051	ev_loop_fork (EV_A);	3375	ev_loop_fork (EV_A);
3052	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3376	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3053	}	3377	}
3054		3378
…		…
3068	{	3392	{
3069	if (expect_false (ev_is_active (w)))	3393	if (expect_false (ev_is_active (w)))
3070	return;	3394	return;
3071		3395
3072	{	3396	{
3073	struct ev_loop *loop = w->other;	3397	EV_P = w->other;
3074	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3398	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3075	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3399	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3076	}	3400	}
3077		3401
3078	EV_FREQUENT_CHECK;	3402	EV_FREQUENT_CHECK;
…		…
3105		3429
3106	ev_io_stop (EV_A_ &w->io);	3430	ev_io_stop (EV_A_ &w->io);
3107	ev_prepare_stop (EV_A_ &w->prepare);	3431	ev_prepare_stop (EV_A_ &w->prepare);
3108	ev_fork_stop (EV_A_ &w->fork);	3432	ev_fork_stop (EV_A_ &w->fork);
3109		3433
		3434	ev_stop (EV_A_ (W)w);
		3435
3110	EV_FREQUENT_CHECK;	3436	EV_FREQUENT_CHECK;
3111	}	3437	}
3112	#endif	3438	#endif
3113		3439
3114	#if EV_FORK_ENABLE	3440	#if EV_FORK_ENABLE
…		…
3190		3516
3191	void	3517	void
3192	ev_async_send (EV_P_ ev_async *w)	3518	ev_async_send (EV_P_ ev_async *w)
3193	{	3519	{
3194	w->sent = 1;	3520	w->sent = 1;
3195	evpipe_write (EV_A_ &gotasync);	3521	evpipe_write (EV_A_ &async_pending);
3196	}	3522	}
3197	#endif	3523	#endif
3198		3524
3199	/*****************************************************************************/	3525	/*****************************************************************************/
3200		3526
…		…
3349	if (types & EV_CHECK)	3675	if (types & EV_CHECK)
3350	for (i = checkcnt; i--; )	3676	for (i = checkcnt; i--; )
3351	cb (EV_A_ EV_CHECK, checks [i]);	3677	cb (EV_A_ EV_CHECK, checks [i]);
3352		3678
3353	if (types & EV_SIGNAL)	3679	if (types & EV_SIGNAL)
3354	for (i = 0; i < signalmax; ++i)	3680	for (i = 0; i < EV_NSIG - 1; ++i)
3355	for (wl = signals [i].head; wl; )	3681	for (wl = signals [i].head; wl; )
3356	{	3682	{
3357	wn = wl->next;	3683	wn = wl->next;
3358	cb (EV_A_ EV_SIGNAL, wl);	3684	cb (EV_A_ EV_SIGNAL, wl);
3359	wl = wn;	3685	wl = wn;

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Comparing libev/ev.c (file contents): Revision 1.294 by root, Wed Jul 8 02:46:05 2009 UTC vs. Revision 1.329 by root, Tue Feb 16 09:32:39 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.294 by root, Wed Jul 8 02:46:05 2009 UTC vs.
Revision 1.329 by root, Tue Feb 16 09:32:39 2010 UTC