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Comparing libev/ev.c (file contents):
Revision 1.288 by root, Sat Apr 25 14:12:48 2009 UTC vs.
Revision 1.321 by root, Thu Dec 31 06:50:17 2009 UTC

…		…
57	# endif	57	# endif
58	# ifndef EV_USE_MONOTONIC	58	# ifndef EV_USE_MONOTONIC
59	# define EV_USE_MONOTONIC 1	59	# define EV_USE_MONOTONIC 1
60	# endif	60	# endif
61	# endif	61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
62	# endif	64	# endif
63		65
64	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
65	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
66	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
…		…
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
133	# endif	135	# endif
134	# endif	136	# endif
135		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
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
138	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
139	# else	149	# else
140	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
143		153
144	#endif	154	#endif
145		155
146	#include <math.h>	156	#include <math.h>
147	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
148	#include <fcntl.h>	159	#include <fcntl.h>
149	#include <stddef.h>	160	#include <stddef.h>
150		161
151	#include <stdio.h>	162	#include <stdio.h>
152		163
…		…
176	# endif	187	# endif
177	#endif	188	#endif
178		189
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	190	/* this block tries to deduce configuration from header-defined symbols and defaults */
180		191
		192	/* try to deduce the maximum number of signals on this platform */
		193	#if defined (EV_NSIG)
		194	/* use what's provided */
		195	#elif defined (NSIG)
		196	# define EV_NSIG (NSIG)
		197	#elif defined(_NSIG)
		198	# define EV_NSIG (_NSIG)
		199	#elif defined (SIGMAX)
		200	# define EV_NSIG (SIGMAX+1)
		201	#elif defined (SIG_MAX)
		202	# define EV_NSIG (SIG_MAX+1)
		203	#elif defined (_SIG_MAX)
		204	# define EV_NSIG (_SIG_MAX+1)
		205	#elif defined (MAXSIG)
		206	# define EV_NSIG (MAXSIG+1)
		207	#elif defined (MAX_SIG)
		208	# define EV_NSIG (MAX_SIG+1)
		209	#elif defined (SIGARRAYSIZE)
		210	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		211	#elif defined (_sys_nsig)
		212	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		213	#else
		214	# error "unable to find value for NSIG, please report"
		215	/* to make it compile regardless, just remove the above line */
		216	# define EV_NSIG 65
		217	#endif
		218
181	#ifndef EV_USE_CLOCK_SYSCALL	219	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	220	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	221	# define EV_USE_CLOCK_SYSCALL 1
184	# else	222	# else
185	# define EV_USE_CLOCK_SYSCALL 0	223	# define EV_USE_CLOCK_SYSCALL 0
…		…
264	# else	302	# else
265	# define EV_USE_EVENTFD 0	303	# define EV_USE_EVENTFD 0
266	# endif	304	# endif
267	#endif	305	#endif
268		306
		307	#ifndef EV_USE_SIGNALFD
		308	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		309	# define EV_USE_SIGNALFD 1
		310	# else
		311	# define EV_USE_SIGNALFD 0
		312	# endif
		313	#endif
		314
269	#if 0 /* debugging */	315	#if 0 /* debugging */
270	# define EV_VERIFY 3	316	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	317	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	318	# define EV_HEAP_CACHE_AT 1
273	#endif	319	#endif
…		…
280	# define EV_USE_4HEAP !EV_MINIMAL	326	# define EV_USE_4HEAP !EV_MINIMAL
281	#endif	327	#endif
282		328
283	#ifndef EV_HEAP_CACHE_AT	329	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	330	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		331	#endif
		332
		333	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		334	/* which makes programs even slower. might work on other unices, too. */
		335	#if EV_USE_CLOCK_SYSCALL
		336	# include <syscall.h>
		337	# ifdef SYS_clock_gettime
		338	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		339	# undef EV_USE_MONOTONIC
		340	# define EV_USE_MONOTONIC 1
		341	# else
		342	# undef EV_USE_CLOCK_SYSCALL
		343	# define EV_USE_CLOCK_SYSCALL 0
		344	# endif
285	#endif	345	#endif
286		346
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	347	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
288		348
289	#ifndef CLOCK_MONOTONIC	349	#ifndef CLOCK_MONOTONIC
…		…
320		380
321	#if EV_SELECT_IS_WINSOCKET	381	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	382	# include <winsock.h>
323	#endif	383	#endif
324		384
325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326	/* which makes programs even slower. might work on other unices, too. */
327	#if EV_USE_CLOCK_SYSCALL
328	# include <syscall.h>
329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330	# undef EV_USE_MONOTONIC
331	# define EV_USE_MONOTONIC 1
332	#endif
333
334	#if EV_USE_EVENTFD	385	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	386	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	387	# include <stdint.h>
		388	# ifndef EFD_NONBLOCK
		389	# define EFD_NONBLOCK O_NONBLOCK
		390	# endif
		391	# ifndef EFD_CLOEXEC
		392	# ifdef O_CLOEXEC
		393	# define EFD_CLOEXEC O_CLOEXEC
		394	# else
		395	# define EFD_CLOEXEC 02000000
		396	# endif
		397	# endif
337	# ifdef __cplusplus	398	# ifdef __cplusplus
338	extern "C" {	399	extern "C" {
339	# endif	400	# endif
340	int eventfd (unsigned int initval, int flags);	401	int eventfd (unsigned int initval, int flags);
341	# ifdef __cplusplus	402	# ifdef __cplusplus
342	}	403	}
343	# endif	404	# endif
344	#endif	405	#endif
		406
		407	#if EV_USE_SIGNALFD
		408	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		409	# include <stdint.h>
		410	# ifndef SFD_NONBLOCK
		411	# define SFD_NONBLOCK O_NONBLOCK
		412	# endif
		413	# ifndef SFD_CLOEXEC
		414	# ifdef O_CLOEXEC
		415	# define SFD_CLOEXEC O_CLOEXEC
		416	# else
		417	# define SFD_CLOEXEC 02000000
		418	# endif
		419	# endif
		420	# ifdef __cplusplus
		421	extern "C" {
		422	# endif
		423	int signalfd (int fd, const sigset_t *mask, int flags);
		424
		425	struct signalfd_siginfo
		426	{
		427	uint32_t ssi_signo;
		428	char pad[128 - sizeof (uint32_t)];
		429	};
		430	# ifdef __cplusplus
		431	}
		432	# endif
		433	#endif
		434
345		435
346	/**/	436	/**/
347		437
348	#if EV_VERIFY >= 3	438	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	439	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
361	*/	451	*/
362	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	452	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363		453
364	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	454	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	455	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367		456
368	#if __GNUC__ >= 4	457	#if __GNUC__ >= 4
369	# define expect(expr,value) __builtin_expect ((expr),(value))	458	# define expect(expr,value) __builtin_expect ((expr),(value))
370	# define noinline __attribute__ ((noinline))	459	# define noinline __attribute__ ((noinline))
371	#else	460	#else
…		…
384	# define inline_speed static noinline	473	# define inline_speed static noinline
385	#else	474	#else
386	# define inline_speed static inline	475	# define inline_speed static inline
387	#endif	476	#endif
388		477
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	478	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		479
		480	#if EV_MINPRI == EV_MAXPRI
		481	# define ABSPRI(w) (((W)w), 0)
		482	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	483	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		484	#endif
391		485
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	486	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	487	#define EMPTY2(a,b) /* used to suppress some warnings */
394		488
395	typedef ev_watcher *W;	489	typedef ev_watcher *W;
…		…
407		501
408	#if EV_USE_MONOTONIC	502	#if EV_USE_MONOTONIC
409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	503	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
410	#endif	504	#endif
411		505
		506	#ifndef EV_FD_TO_WIN32_HANDLE
		507	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		508	#endif
		509	#ifndef EV_WIN32_HANDLE_TO_FD
		510	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
		511	#endif
		512	#ifndef EV_WIN32_CLOSE_FD
		513	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		514	#endif
		515
412	#ifdef _WIN32	516	#ifdef _WIN32
413	# include "ev_win32.c"	517	# include "ev_win32.c"
414	#endif	518	#endif
415		519
416	/*****************************************************************************/	520	/*****************************************************************************/
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	582	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	583	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		584
481	/*****************************************************************************/	585	/*****************************************************************************/
482		586
		587	/* set in reify when reification needed */
		588	#define EV_ANFD_REIFY 1
		589
483	/* file descriptor info structure */	590	/* file descriptor info structure */
484	typedef struct	591	typedef struct
485	{	592	{
486	WL head;	593	WL head;
487	unsigned char events; /* the events watched for */	594	unsigned char events; /* the events watched for */
488	unsigned char reify; /* flag set when this ANFD needs reification */	595	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
489	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	596	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
490	unsigned char unused;	597	unsigned char unused;
491	#if EV_USE_EPOLL	598	#if EV_USE_EPOLL
492	unsigned int egen; /* generation counter to counter epoll bugs */	599	unsigned int egen; /* generation counter to counter epoll bugs */
493	#endif	600	#endif
…		…
555		662
556	static int ev_default_loop_ptr;	663	static int ev_default_loop_ptr;
557		664
558	#endif	665	#endif
559		666
		667	#if EV_MINIMAL < 2
		668	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		669	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		670	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		671	#else
		672	# define EV_RELEASE_CB (void)0
		673	# define EV_ACQUIRE_CB (void)0
		674	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		675	#endif
		676
		677	#define EVUNLOOP_RECURSE 0x80
		678
560	/*****************************************************************************/	679	/*****************************************************************************/
561		680
		681	#ifndef EV_HAVE_EV_TIME
562	ev_tstamp	682	ev_tstamp
563	ev_time (void)	683	ev_time (void)
564	{	684	{
565	#if EV_USE_REALTIME	685	#if EV_USE_REALTIME
566	if (expect_true (have_realtime))	686	if (expect_true (have_realtime))
…		…
573		693
574	struct timeval tv;	694	struct timeval tv;
575	gettimeofday (&tv, 0);	695	gettimeofday (&tv, 0);
576	return tv.tv_sec + tv.tv_usec * 1e-6;	696	return tv.tv_sec + tv.tv_usec * 1e-6;
577	}	697	}
		698	#endif
578		699
579	inline_size ev_tstamp	700	inline_size ev_tstamp
580	get_clock (void)	701	get_clock (void)
581	{	702	{
582	#if EV_USE_MONOTONIC	703	#if EV_USE_MONOTONIC
…		…
618		739
619	tv.tv_sec = (time_t)delay;	740	tv.tv_sec = (time_t)delay;
620	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	741	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
621		742
622	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	743	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
623	/* somehting nto guaranteed by newer posix versions, but guaranteed */	744	/* something not guaranteed by newer posix versions, but guaranteed */
624	/* by older ones */	745	/* by older ones */
625	select (0, 0, 0, 0, &tv);	746	select (0, 0, 0, 0, &tv);
626	#endif	747	#endif
627	}	748	}
628	}	749	}
…		…
736	}	857	}
737		858
738	/*****************************************************************************/	859	/*****************************************************************************/
739		860
740	inline_speed void	861	inline_speed void
741	fd_event (EV_P_ int fd, int revents)	862	fd_event_nc (EV_P_ int fd, int revents)
742	{	863	{
743	ANFD *anfd = anfds + fd;	864	ANFD *anfd = anfds + fd;
744	ev_io *w;	865	ev_io *w;
745		866
746	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	867	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
750	if (ev)	871	if (ev)
751	ev_feed_event (EV_A_ (W)w, ev);	872	ev_feed_event (EV_A_ (W)w, ev);
752	}	873	}
753	}	874	}
754		875
		876	/* do not submit kernel events for fds that have reify set */
		877	/* because that means they changed while we were polling for new events */
		878	inline_speed void
		879	fd_event (EV_P_ int fd, int revents)
		880	{
		881	ANFD *anfd = anfds + fd;
		882
		883	if (expect_true (!anfd->reify))
		884	fd_event_nc (EV_A_ fd, revents);
		885	}
		886
755	void	887	void
756	ev_feed_fd_event (EV_P_ int fd, int revents)	888	ev_feed_fd_event (EV_P_ int fd, int revents)
757	{	889	{
758	if (fd >= 0 && fd < anfdmax)	890	if (fd >= 0 && fd < anfdmax)
759	fd_event (EV_A_ fd, revents);	891	fd_event_nc (EV_A_ fd, revents);
760	}	892	}
761		893
762	/* make sure the external fd watch events are in-sync */	894	/* make sure the external fd watch events are in-sync */
763	/* with the kernel/libev internal state */	895	/* with the kernel/libev internal state */
764	inline_size void	896	inline_size void
…		…
779		911
780	#if EV_SELECT_IS_WINSOCKET	912	#if EV_SELECT_IS_WINSOCKET
781	if (events)	913	if (events)
782	{	914	{
783	unsigned long arg;	915	unsigned long arg;
784	#ifdef EV_FD_TO_WIN32_HANDLE
785	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	916	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
786	#else
787	anfd->handle = _get_osfhandle (fd);
788	#endif
789	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	917	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
790	}	918	}
791	#endif	919	#endif
792		920
793	{	921	{
…		…
864		992
865	for (fd = anfdmax; fd--; )	993	for (fd = anfdmax; fd--; )
866	if (anfds [fd].events)	994	if (anfds [fd].events)
867	{	995	{
868	fd_kill (EV_A_ fd);	996	fd_kill (EV_A_ fd);
869	return;	997	break;
870	}	998	}
871	}	999	}
872		1000
873	/* usually called after fork if backend needs to re-arm all fds from scratch */	1001	/* usually called after fork if backend needs to re-arm all fds from scratch */
874	static void noinline	1002	static void noinline
…		…
879	for (fd = 0; fd < anfdmax; ++fd)	1007	for (fd = 0; fd < anfdmax; ++fd)
880	if (anfds [fd].events)	1008	if (anfds [fd].events)
881	{	1009	{
882	anfds [fd].events = 0;	1010	anfds [fd].events = 0;
883	anfds [fd].emask = 0;	1011	anfds [fd].emask = 0;
884	fd_change (EV_A_ fd, EV__IOFDSET | 1);	1012	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
885	}	1013	}
886	}	1014	}
887		1015
888	/*****************************************************************************/	1016	/*****************************************************************************/
889		1017
…		…
964		1092
965	for (;;)	1093	for (;;)
966	{	1094	{
967	int c = k << 1;	1095	int c = k << 1;
968		1096
969	if (c > N + HEAP0 - 1)	1097	if (c >= N + HEAP0)
970	break;	1098	break;
971		1099
972	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1100	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
973	? 1 : 0;	1101	? 1 : 0;
974		1102
…		…
1010		1138
1011	/* move an element suitably so it is in a correct place */	1139	/* move an element suitably so it is in a correct place */
1012	inline_size void	1140	inline_size void
1013	adjustheap (ANHE *heap, int N, int k)	1141	adjustheap (ANHE *heap, int N, int k)
1014	{	1142	{
1015	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1143	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1016	upheap (heap, k);	1144	upheap (heap, k);
1017	else	1145	else
1018	downheap (heap, N, k);	1146	downheap (heap, N, k);
1019	}	1147	}
1020		1148
…		…
1033	/*****************************************************************************/	1161	/*****************************************************************************/
1034		1162
1035	/* associate signal watchers to a signal signal */	1163	/* associate signal watchers to a signal signal */
1036	typedef struct	1164	typedef struct
1037	{	1165	{
		1166	EV_ATOMIC_T pending;
		1167	#if EV_MULTIPLICITY
		1168	EV_P;
		1169	#endif
1038	WL head;	1170	WL head;
1039	EV_ATOMIC_T gotsig;
1040	} ANSIG;	1171	} ANSIG;
1041		1172
1042	static ANSIG *signals;	1173	static ANSIG signals [EV_NSIG - 1];
1043	static int signalmax;
1044
1045	static EV_ATOMIC_T gotsig;
1046		1174
1047	/*****************************************************************************/	1175	/*****************************************************************************/
1048		1176
1049	/* used to prepare libev internal fd's */	1177	/* used to prepare libev internal fd's */
1050	/* this is not fork-safe */	1178	/* this is not fork-safe */
…		…
1064	evpipe_init (EV_P)	1192	evpipe_init (EV_P)
1065	{	1193	{
1066	if (!ev_is_active (&pipe_w))	1194	if (!ev_is_active (&pipe_w))
1067	{	1195	{
1068	#if EV_USE_EVENTFD	1196	#if EV_USE_EVENTFD
		1197	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1198	if (evfd < 0 && errno == EINVAL)
1069	if ((evfd = eventfd (0, 0)) >= 0)	1199	evfd = eventfd (0, 0);
		1200
		1201	if (evfd >= 0)
1070	{	1202	{
1071	evpipe [0] = -1;	1203	evpipe [0] = -1;
1072	fd_intern (evfd);	1204	fd_intern (evfd); /* doing it twice doesn't hurt */
1073	ev_io_set (&pipe_w, evfd, EV_READ);	1205	ev_io_set (&pipe_w, evfd, EV_READ);
1074	}	1206	}
1075	else	1207	else
1076	#endif	1208	#endif
1077	{	1209	{
…		…
1114	/* called whenever the libev signal pipe */	1246	/* called whenever the libev signal pipe */
1115	/* got some events (signal, async) */	1247	/* got some events (signal, async) */
1116	static void	1248	static void
1117	pipecb (EV_P_ ev_io *iow, int revents)	1249	pipecb (EV_P_ ev_io *iow, int revents)
1118	{	1250	{
		1251	int i;
		1252
1119	#if EV_USE_EVENTFD	1253	#if EV_USE_EVENTFD
1120	if (evfd >= 0)	1254	if (evfd >= 0)
1121	{	1255	{
1122	uint64_t counter;	1256	uint64_t counter;
1123	read (evfd, &counter, sizeof (uint64_t));	1257	read (evfd, &counter, sizeof (uint64_t));
…		…
1127	{	1261	{
1128	char dummy;	1262	char dummy;
1129	read (evpipe [0], &dummy, 1);	1263	read (evpipe [0], &dummy, 1);
1130	}	1264	}
1131		1265
1132	if (gotsig && ev_is_default_loop (EV_A))	1266	if (sig_pending)
1133	{	1267	{
1134	int signum;	1268	sig_pending = 0;
1135	gotsig = 0;
1136		1269
1137	for (signum = signalmax; signum--; )	1270	for (i = EV_NSIG - 1; i--; )
1138	if (signals [signum].gotsig)	1271	if (expect_false (signals [i].pending))
1139	ev_feed_signal_event (EV_A_ signum + 1);	1272	ev_feed_signal_event (EV_A_ i + 1);
1140	}	1273	}
1141		1274
1142	#if EV_ASYNC_ENABLE	1275	#if EV_ASYNC_ENABLE
1143	if (gotasync)	1276	if (async_pending)
1144	{	1277	{
1145	int i;	1278	async_pending = 0;
1146	gotasync = 0;
1147		1279
1148	for (i = asynccnt; i--; )	1280	for (i = asynccnt; i--; )
1149	if (asyncs [i]->sent)	1281	if (asyncs [i]->sent)
1150	{	1282	{
1151	asyncs [i]->sent = 0;	1283	asyncs [i]->sent = 0;
…		…
1159		1291
1160	static void	1292	static void
1161	ev_sighandler (int signum)	1293	ev_sighandler (int signum)
1162	{	1294	{
1163	#if EV_MULTIPLICITY	1295	#if EV_MULTIPLICITY
1164	struct ev_loop *loop = &default_loop_struct;	1296	EV_P = signals [signum - 1].loop;
1165	#endif	1297	#endif
1166		1298
1167	#if _WIN32	1299	#if _WIN32
1168	signal (signum, ev_sighandler);	1300	signal (signum, ev_sighandler);
1169	#endif	1301	#endif
1170		1302
1171	signals [signum - 1].gotsig = 1;	1303	signals [signum - 1].pending = 1;
1172	evpipe_write (EV_A_ &gotsig);	1304	evpipe_write (EV_A_ &sig_pending);
1173	}	1305	}
1174		1306
1175	void noinline	1307	void noinline
1176	ev_feed_signal_event (EV_P_ int signum)	1308	ev_feed_signal_event (EV_P_ int signum)
1177	{	1309	{
1178	WL w;	1310	WL w;
1179		1311
		1312	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1313	return;
		1314
		1315	--signum;
		1316
1180	#if EV_MULTIPLICITY	1317	#if EV_MULTIPLICITY
1181	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1318	/* it is permissible to try to feed a signal to the wrong loop */
1182	#endif	1319	/* or, likely more useful, feeding a signal nobody is waiting for */
1183		1320
1184	--signum;	1321	if (expect_false (signals [signum].loop != EV_A))
1185
1186	if (signum < 0 || signum >= signalmax)
1187	return;	1322	return;
		1323	#endif
1188		1324
1189	signals [signum].gotsig = 0;	1325	signals [signum].pending = 0;
1190		1326
1191	for (w = signals [signum].head; w; w = w->next)	1327	for (w = signals [signum].head; w; w = w->next)
1192	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1328	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1193	}	1329	}
		1330
		1331	#if EV_USE_SIGNALFD
		1332	static void
		1333	sigfdcb (EV_P_ ev_io *iow, int revents)
		1334	{
		1335	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1336
		1337	for (;;)
		1338	{
		1339	ssize_t res = read (sigfd, si, sizeof (si));
		1340
		1341	/* not ISO-C, as res might be -1, but works with SuS */
		1342	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1343	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1344
		1345	if (res < (ssize_t)sizeof (si))
		1346	break;
		1347	}
		1348	}
		1349	#endif
1194		1350
1195	/*****************************************************************************/	1351	/*****************************************************************************/
1196		1352
1197	static WL childs [EV_PID_HASHSIZE];	1353	static WL childs [EV_PID_HASHSIZE];
1198		1354
…		…
1343	ev_backend (EV_P)	1499	ev_backend (EV_P)
1344	{	1500	{
1345	return backend;	1501	return backend;
1346	}	1502	}
1347		1503
		1504	#if EV_MINIMAL < 2
1348	unsigned int	1505	unsigned int
1349	ev_loop_count (EV_P)	1506	ev_loop_count (EV_P)
1350	{	1507	{
1351	return loop_count;	1508	return loop_count;
1352	}	1509	}
1353		1510
		1511	unsigned int
		1512	ev_loop_depth (EV_P)
		1513	{
		1514	return loop_depth;
		1515	}
		1516
1354	void	1517	void
1355	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1518	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1356	{	1519	{
1357	io_blocktime = interval;	1520	io_blocktime = interval;
1358	}	1521	}
…		…
1360	void	1523	void
1361	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1524	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1362	{	1525	{
1363	timeout_blocktime = interval;	1526	timeout_blocktime = interval;
1364	}	1527	}
		1528
		1529	void
		1530	ev_set_userdata (EV_P_ void *data)
		1531	{
		1532	userdata = data;
		1533	}
		1534
		1535	void *
		1536	ev_userdata (EV_P)
		1537	{
		1538	return userdata;
		1539	}
		1540
		1541	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1542	{
		1543	invoke_cb = invoke_pending_cb;
		1544	}
		1545
		1546	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1547	{
		1548	release_cb = release;
		1549	acquire_cb = acquire;
		1550	}
		1551	#endif
1365		1552
1366	/* initialise a loop structure, must be zero-initialised */	1553	/* initialise a loop structure, must be zero-initialised */
1367	static void noinline	1554	static void noinline
1368	loop_init (EV_P_ unsigned int flags)	1555	loop_init (EV_P_ unsigned int flags)
1369	{	1556	{
…		…
1387	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1574	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1388	have_monotonic = 1;	1575	have_monotonic = 1;
1389	}	1576	}
1390	#endif	1577	#endif
1391		1578
		1579	/* pid check not overridable via env */
		1580	#ifndef _WIN32
		1581	if (flags & EVFLAG_FORKCHECK)
		1582	curpid = getpid ();
		1583	#endif
		1584
		1585	if (!(flags & EVFLAG_NOENV)
		1586	&& !enable_secure ()
		1587	&& getenv ("LIBEV_FLAGS"))
		1588	flags = atoi (getenv ("LIBEV_FLAGS"));
		1589
1392	ev_rt_now = ev_time ();	1590	ev_rt_now = ev_time ();
1393	mn_now = get_clock ();	1591	mn_now = get_clock ();
1394	now_floor = mn_now;	1592	now_floor = mn_now;
1395	rtmn_diff = ev_rt_now - mn_now;	1593	rtmn_diff = ev_rt_now - mn_now;
		1594	#if EV_MINIMAL < 2
		1595	invoke_cb = ev_invoke_pending;
		1596	#endif
1396		1597
1397	io_blocktime = 0.;	1598	io_blocktime = 0.;
1398	timeout_blocktime = 0.;	1599	timeout_blocktime = 0.;
1399	backend = 0;	1600	backend = 0;
1400	backend_fd = -1;	1601	backend_fd = -1;
1401	gotasync = 0;	1602	sig_pending = 0;
		1603	#if EV_ASYNC_ENABLE
		1604	async_pending = 0;
		1605	#endif
1402	#if EV_USE_INOTIFY	1606	#if EV_USE_INOTIFY
1403	fs_fd = -2;	1607	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1404	#endif	1608	#endif
1405		1609	#if EV_USE_SIGNALFD
1406	/* pid check not overridable via env */	1610	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1407	#ifndef _WIN32
1408	if (flags & EVFLAG_FORKCHECK)
1409	curpid = getpid ();
1410	#endif	1611	#endif
1411
1412	if (!(flags & EVFLAG_NOENV)
1413	&& !enable_secure ()
1414	&& getenv ("LIBEV_FLAGS"))
1415	flags = atoi (getenv ("LIBEV_FLAGS"));
1416		1612
1417	if (!(flags & 0x0000ffffU))	1613	if (!(flags & 0x0000ffffU))
1418	flags |= ev_recommended_backends ();	1614	flags |= ev_recommended_backends ();
1419		1615
1420	#if EV_USE_PORT	1616	#if EV_USE_PORT
…		…
1446	{	1642	{
1447	int i;	1643	int i;
1448		1644
1449	if (ev_is_active (&pipe_w))	1645	if (ev_is_active (&pipe_w))
1450	{	1646	{
1451	ev_ref (EV_A); /* signal watcher */	1647	/*ev_ref (EV_A);*/
1452	ev_io_stop (EV_A_ &pipe_w);	1648	/*ev_io_stop (EV_A_ &pipe_w);*/
1453		1649
1454	#if EV_USE_EVENTFD	1650	#if EV_USE_EVENTFD
1455	if (evfd >= 0)	1651	if (evfd >= 0)
1456	close (evfd);	1652	close (evfd);
1457	#endif	1653	#endif
1458		1654
1459	if (evpipe [0] >= 0)	1655	if (evpipe [0] >= 0)
1460	{	1656	{
1461	close (evpipe [0]);	1657	EV_WIN32_CLOSE_FD (evpipe [0]);
1462	close (evpipe [1]);	1658	EV_WIN32_CLOSE_FD (evpipe [1]);
1463	}	1659	}
1464	}	1660	}
		1661
		1662	#if EV_USE_SIGNALFD
		1663	if (ev_is_active (&sigfd_w))
		1664	close (sigfd);
		1665	#endif
1465		1666
1466	#if EV_USE_INOTIFY	1667	#if EV_USE_INOTIFY
1467	if (fs_fd >= 0)	1668	if (fs_fd >= 0)
1468	close (fs_fd);	1669	close (fs_fd);
1469	#endif	1670	#endif
…		…
1493	#if EV_IDLE_ENABLE	1694	#if EV_IDLE_ENABLE
1494	array_free (idle, [i]);	1695	array_free (idle, [i]);
1495	#endif	1696	#endif
1496	}	1697	}
1497		1698
1498	ev_free (anfds); anfdmax = 0;	1699	ev_free (anfds); anfds = 0; anfdmax = 0;
1499		1700
1500	/* have to use the microsoft-never-gets-it-right macro */	1701	/* have to use the microsoft-never-gets-it-right macro */
1501	array_free (rfeed, EMPTY);	1702	array_free (rfeed, EMPTY);
1502	array_free (fdchange, EMPTY);	1703	array_free (fdchange, EMPTY);
1503	array_free (timer, EMPTY);	1704	array_free (timer, EMPTY);
…		…
1538		1739
1539	if (ev_is_active (&pipe_w))	1740	if (ev_is_active (&pipe_w))
1540	{	1741	{
1541	/* this "locks" the handlers against writing to the pipe */	1742	/* this "locks" the handlers against writing to the pipe */
1542	/* while we modify the fd vars */	1743	/* while we modify the fd vars */
1543	gotsig = 1;	1744	sig_pending = 1;
1544	#if EV_ASYNC_ENABLE	1745	#if EV_ASYNC_ENABLE
1545	gotasync = 1;	1746	async_pending = 1;
1546	#endif	1747	#endif
1547		1748
1548	ev_ref (EV_A);	1749	ev_ref (EV_A);
1549	ev_io_stop (EV_A_ &pipe_w);	1750	ev_io_stop (EV_A_ &pipe_w);
1550		1751
…		…
1553	close (evfd);	1754	close (evfd);
1554	#endif	1755	#endif
1555		1756
1556	if (evpipe [0] >= 0)	1757	if (evpipe [0] >= 0)
1557	{	1758	{
1558	close (evpipe [0]);	1759	EV_WIN32_CLOSE_FD (evpipe [0]);
1559	close (evpipe [1]);	1760	EV_WIN32_CLOSE_FD (evpipe [1]);
1560	}	1761	}
1561		1762
1562	evpipe_init (EV_A);	1763	evpipe_init (EV_A);
1563	/* now iterate over everything, in case we missed something */	1764	/* now iterate over everything, in case we missed something */
1564	pipecb (EV_A_ &pipe_w, EV_READ);	1765	pipecb (EV_A_ &pipe_w, EV_READ);
…		…
1570	#if EV_MULTIPLICITY	1771	#if EV_MULTIPLICITY
1571		1772
1572	struct ev_loop *	1773	struct ev_loop *
1573	ev_loop_new (unsigned int flags)	1774	ev_loop_new (unsigned int flags)
1574	{	1775	{
1575	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1776	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1576		1777
1577	memset (loop, 0, sizeof (struct ev_loop));	1778	memset (EV_A, 0, sizeof (struct ev_loop));
1578
1579	loop_init (EV_A_ flags);	1779	loop_init (EV_A_ flags);
1580		1780
1581	if (ev_backend (EV_A))	1781	if (ev_backend (EV_A))
1582	return loop;	1782	return EV_A;
1583		1783
1584	return 0;	1784	return 0;
1585	}	1785	}
1586		1786
1587	void	1787	void
…		…
1594	void	1794	void
1595	ev_loop_fork (EV_P)	1795	ev_loop_fork (EV_P)
1596	{	1796	{
1597	postfork = 1; /* must be in line with ev_default_fork */	1797	postfork = 1; /* must be in line with ev_default_fork */
1598	}	1798	}
		1799	#endif /* multiplicity */
1599		1800
1600	#if EV_VERIFY	1801	#if EV_VERIFY
1601	static void noinline	1802	static void noinline
1602	verify_watcher (EV_P_ W w)	1803	verify_watcher (EV_P_ W w)
1603	{	1804	{
…		…
1631	verify_watcher (EV_A_ ws [cnt]);	1832	verify_watcher (EV_A_ ws [cnt]);
1632	}	1833	}
1633	}	1834	}
1634	#endif	1835	#endif
1635		1836
		1837	#if EV_MINIMAL < 2
1636	void	1838	void
1637	ev_loop_verify (EV_P)	1839	ev_loop_verify (EV_P)
1638	{	1840	{
1639	#if EV_VERIFY	1841	#if EV_VERIFY
1640	int i;	1842	int i;
…		…
1689	assert (checkmax >= checkcnt);	1891	assert (checkmax >= checkcnt);
1690	array_verify (EV_A_ (W *)checks, checkcnt);	1892	array_verify (EV_A_ (W *)checks, checkcnt);
1691		1893
1692	# if 0	1894	# if 0
1693	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1895	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1694	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1896	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1695	# endif
1696	#endif	1897	# endif
		1898	#endif
1697	}	1899	}
1698		1900	#endif
1699	#endif /* multiplicity */
1700		1901
1701	#if EV_MULTIPLICITY	1902	#if EV_MULTIPLICITY
1702	struct ev_loop *	1903	struct ev_loop *
1703	ev_default_loop_init (unsigned int flags)	1904	ev_default_loop_init (unsigned int flags)
1704	#else	1905	#else
…		…
1707	#endif	1908	#endif
1708	{	1909	{
1709	if (!ev_default_loop_ptr)	1910	if (!ev_default_loop_ptr)
1710	{	1911	{
1711	#if EV_MULTIPLICITY	1912	#if EV_MULTIPLICITY
1712	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1913	EV_P = ev_default_loop_ptr = &default_loop_struct;
1713	#else	1914	#else
1714	ev_default_loop_ptr = 1;	1915	ev_default_loop_ptr = 1;
1715	#endif	1916	#endif
1716		1917
1717	loop_init (EV_A_ flags);	1918	loop_init (EV_A_ flags);
…		…
1734		1935
1735	void	1936	void
1736	ev_default_destroy (void)	1937	ev_default_destroy (void)
1737	{	1938	{
1738	#if EV_MULTIPLICITY	1939	#if EV_MULTIPLICITY
1739	struct ev_loop *loop = ev_default_loop_ptr;	1940	EV_P = ev_default_loop_ptr;
1740	#endif	1941	#endif
1741		1942
1742	ev_default_loop_ptr = 0;	1943	ev_default_loop_ptr = 0;
1743		1944
1744	#ifndef _WIN32	1945	#ifndef _WIN32
…		…
1751		1952
1752	void	1953	void
1753	ev_default_fork (void)	1954	ev_default_fork (void)
1754	{	1955	{
1755	#if EV_MULTIPLICITY	1956	#if EV_MULTIPLICITY
1756	struct ev_loop *loop = ev_default_loop_ptr;	1957	EV_P = ev_default_loop_ptr;
1757	#endif	1958	#endif
1758		1959
1759	postfork = 1; /* must be in line with ev_loop_fork */	1960	postfork = 1; /* must be in line with ev_loop_fork */
1760	}	1961	}
1761		1962
…		…
1765	ev_invoke (EV_P_ void *w, int revents)	1966	ev_invoke (EV_P_ void *w, int revents)
1766	{	1967	{
1767	EV_CB_INVOKE ((W)w, revents);	1968	EV_CB_INVOKE ((W)w, revents);
1768	}	1969	}
1769		1970
1770	inline_speed void	1971	unsigned int
1771	call_pending (EV_P)	1972	ev_pending_count (EV_P)
		1973	{
		1974	int pri;
		1975	unsigned int count = 0;
		1976
		1977	for (pri = NUMPRI; pri--; )
		1978	count += pendingcnt [pri];
		1979
		1980	return count;
		1981	}
		1982
		1983	void noinline
		1984	ev_invoke_pending (EV_P)
1772	{	1985	{
1773	int pri;	1986	int pri;
1774		1987
1775	for (pri = NUMPRI; pri--; )	1988	for (pri = NUMPRI; pri--; )
1776	while (pendingcnt [pri])	1989	while (pendingcnt [pri])
…		…
1948	/* fetch new monotonic and realtime times from the kernel */	2161	/* fetch new monotonic and realtime times from the kernel */
1949	/* also detetc if there was a timejump, and act accordingly */	2162	/* also detetc if there was a timejump, and act accordingly */
1950	inline_speed void	2163	inline_speed void
1951	time_update (EV_P_ ev_tstamp max_block)	2164	time_update (EV_P_ ev_tstamp max_block)
1952	{	2165	{
1953	int i;
1954
1955	#if EV_USE_MONOTONIC	2166	#if EV_USE_MONOTONIC
1956	if (expect_true (have_monotonic))	2167	if (expect_true (have_monotonic))
1957	{	2168	{
		2169	int i;
1958	ev_tstamp odiff = rtmn_diff;	2170	ev_tstamp odiff = rtmn_diff;
1959		2171
1960	mn_now = get_clock ();	2172	mn_now = get_clock ();
1961		2173
1962	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2174	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
2012		2224
2013	mn_now = ev_rt_now;	2225	mn_now = ev_rt_now;
2014	}	2226	}
2015	}	2227	}
2016		2228
2017	static int loop_done;
2018
2019	void	2229	void
2020	ev_loop (EV_P_ int flags)	2230	ev_loop (EV_P_ int flags)
2021	{	2231	{
		2232	#if EV_MINIMAL < 2
		2233	++loop_depth;
		2234	#endif
		2235
		2236	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2237
2022	loop_done = EVUNLOOP_CANCEL;	2238	loop_done = EVUNLOOP_CANCEL;
2023		2239
2024	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2240	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2025		2241
2026	do	2242	do
2027	{	2243	{
2028	#if EV_VERIFY >= 2	2244	#if EV_VERIFY >= 2
2029	ev_loop_verify (EV_A);	2245	ev_loop_verify (EV_A);
…		…
2042	/* we might have forked, so queue fork handlers */	2258	/* we might have forked, so queue fork handlers */
2043	if (expect_false (postfork))	2259	if (expect_false (postfork))
2044	if (forkcnt)	2260	if (forkcnt)
2045	{	2261	{
2046	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2262	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2047	call_pending (EV_A);	2263	EV_INVOKE_PENDING;
2048	}	2264	}
2049	#endif	2265	#endif
2050		2266
2051	/* queue prepare watchers (and execute them) */	2267	/* queue prepare watchers (and execute them) */
2052	if (expect_false (preparecnt))	2268	if (expect_false (preparecnt))
2053	{	2269	{
2054	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2270	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2055	call_pending (EV_A);	2271	EV_INVOKE_PENDING;
2056	}	2272	}
		2273
		2274	if (expect_false (loop_done))
		2275	break;
2057		2276
2058	/* we might have forked, so reify kernel state if necessary */	2277	/* we might have forked, so reify kernel state if necessary */
2059	if (expect_false (postfork))	2278	if (expect_false (postfork))
2060	loop_fork (EV_A);	2279	loop_fork (EV_A);
2061		2280
…		…
2067	ev_tstamp waittime = 0.;	2286	ev_tstamp waittime = 0.;
2068	ev_tstamp sleeptime = 0.;	2287	ev_tstamp sleeptime = 0.;
2069		2288
2070	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2289	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
2071	{	2290	{
		2291	/* remember old timestamp for io_blocktime calculation */
		2292	ev_tstamp prev_mn_now = mn_now;
		2293
2072	/* update time to cancel out callback processing overhead */	2294	/* update time to cancel out callback processing overhead */
2073	time_update (EV_A_ 1e100);	2295	time_update (EV_A_ 1e100);
2074		2296
2075	waittime = MAX_BLOCKTIME;	2297	waittime = MAX_BLOCKTIME;
2076		2298
…		…
2086	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2308	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2087	if (waittime > to) waittime = to;	2309	if (waittime > to) waittime = to;
2088	}	2310	}
2089	#endif	2311	#endif
2090		2312
		2313	/* don't let timeouts decrease the waittime below timeout_blocktime */
2091	if (expect_false (waittime < timeout_blocktime))	2314	if (expect_false (waittime < timeout_blocktime))
2092	waittime = timeout_blocktime;	2315	waittime = timeout_blocktime;
2093		2316
2094	sleeptime = waittime - backend_fudge;	2317	/* extra check because io_blocktime is commonly 0 */
2095
2096	if (expect_true (sleeptime > io_blocktime))	2318	if (expect_false (io_blocktime))
2097	sleeptime = io_blocktime;
2098
2099	if (sleeptime)
2100	{	2319	{
		2320	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2321
		2322	if (sleeptime > waittime - backend_fudge)
		2323	sleeptime = waittime - backend_fudge;
		2324
		2325	if (expect_true (sleeptime > 0.))
		2326	{
2101	ev_sleep (sleeptime);	2327	ev_sleep (sleeptime);
2102	waittime -= sleeptime;	2328	waittime -= sleeptime;
		2329	}
2103	}	2330	}
2104	}	2331	}
2105		2332
		2333	#if EV_MINIMAL < 2
2106	++loop_count;	2334	++loop_count;
		2335	#endif
		2336	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2107	backend_poll (EV_A_ waittime);	2337	backend_poll (EV_A_ waittime);
		2338	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2108		2339
2109	/* update ev_rt_now, do magic */	2340	/* update ev_rt_now, do magic */
2110	time_update (EV_A_ waittime + sleeptime);	2341	time_update (EV_A_ waittime + sleeptime);
2111	}	2342	}
2112		2343
…		…
2123		2354
2124	/* queue check watchers, to be executed first */	2355	/* queue check watchers, to be executed first */
2125	if (expect_false (checkcnt))	2356	if (expect_false (checkcnt))
2126	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2357	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2127		2358
2128	call_pending (EV_A);	2359	EV_INVOKE_PENDING;
2129	}	2360	}
2130	while (expect_true (	2361	while (expect_true (
2131	activecnt	2362	activecnt
2132	&& !loop_done	2363	&& !loop_done
2133	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2364	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2134	));	2365	));
2135		2366
2136	if (loop_done == EVUNLOOP_ONE)	2367	if (loop_done == EVUNLOOP_ONE)
2137	loop_done = EVUNLOOP_CANCEL;	2368	loop_done = EVUNLOOP_CANCEL;
		2369
		2370	#if EV_MINIMAL < 2
		2371	--loop_depth;
		2372	#endif
2138	}	2373	}
2139		2374
2140	void	2375	void
2141	ev_unloop (EV_P_ int how)	2376	ev_unloop (EV_P_ int how)
2142	{	2377	{
…		…
2193	inline_size void	2428	inline_size void
2194	wlist_del (WL *head, WL elem)	2429	wlist_del (WL *head, WL elem)
2195	{	2430	{
2196	while (*head)	2431	while (*head)
2197	{	2432	{
2198	if (*head == elem)	2433	if (expect_true (*head == elem))
2199	{	2434	{
2200	*head = elem->next;	2435	*head = elem->next;
2201	return;	2436	break;
2202	}	2437	}
2203		2438
2204	head = &(*head)->next;	2439	head = &(*head)->next;
2205	}	2440	}
2206	}	2441	}
…		…
2234	}	2469	}
2235		2470
2236	inline_size void	2471	inline_size void
2237	pri_adjust (EV_P_ W w)	2472	pri_adjust (EV_P_ W w)
2238	{	2473	{
2239	int pri = w->priority;	2474	int pri = ev_priority (w);
2240	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2475	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2241	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2476	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2242	w->priority = pri;	2477	ev_set_priority (w, pri);
2243	}	2478	}
2244		2479
2245	inline_speed void	2480	inline_speed void
2246	ev_start (EV_P_ W w, int active)	2481	ev_start (EV_P_ W w, int active)
2247	{	2482	{
…		…
2274		2509
2275	ev_start (EV_A_ (W)w, 1);	2510	ev_start (EV_A_ (W)w, 1);
2276	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2511	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2277	wlist_add (&anfds[fd].head, (WL)w);	2512	wlist_add (&anfds[fd].head, (WL)w);
2278		2513
2279	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);	2514	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2280	w->events &= ~EV__IOFDSET;	2515	w->events &= ~EV__IOFDSET;
2281		2516
2282	EV_FREQUENT_CHECK;	2517	EV_FREQUENT_CHECK;
2283	}	2518	}
2284		2519
…		…
2378	}	2613	}
2379		2614
2380	EV_FREQUENT_CHECK;	2615	EV_FREQUENT_CHECK;
2381	}	2616	}
2382		2617
		2618	ev_tstamp
		2619	ev_timer_remaining (EV_P_ ev_timer *w)
		2620	{
		2621	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2622	}
		2623
2383	#if EV_PERIODIC_ENABLE	2624	#if EV_PERIODIC_ENABLE
2384	void noinline	2625	void noinline
2385	ev_periodic_start (EV_P_ ev_periodic *w)	2626	ev_periodic_start (EV_P_ ev_periodic *w)
2386	{	2627	{
2387	if (expect_false (ev_is_active (w)))	2628	if (expect_false (ev_is_active (w)))
…		…
2454	#endif	2695	#endif
2455		2696
2456	void noinline	2697	void noinline
2457	ev_signal_start (EV_P_ ev_signal *w)	2698	ev_signal_start (EV_P_ ev_signal *w)
2458	{	2699	{
2459	#if EV_MULTIPLICITY
2460	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2461	#endif
2462	if (expect_false (ev_is_active (w)))	2700	if (expect_false (ev_is_active (w)))
2463	return;	2701	return;
2464		2702
2465	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2703	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2466		2704
2467	evpipe_init (EV_A);	2705	#if EV_MULTIPLICITY
		2706	assert (("libev: a signal must not be attached to two different loops",
		2707	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2468		2708
2469	EV_FREQUENT_CHECK;	2709	signals [w->signum - 1].loop = EV_A;
		2710	#endif
2470		2711
		2712	EV_FREQUENT_CHECK;
		2713
		2714	#if EV_USE_SIGNALFD
		2715	if (sigfd == -2)
2471	{	2716	{
2472	#ifndef _WIN32	2717	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2473	sigset_t full, prev;	2718	if (sigfd < 0 && errno == EINVAL)
2474	sigfillset (&full);	2719	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2475	sigprocmask (SIG_SETMASK, &full, &prev);
2476	#endif
2477		2720
2478	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2721	if (sigfd >= 0)
		2722	{
		2723	fd_intern (sigfd); /* doing it twice will not hurt */
2479		2724
2480	#ifndef _WIN32	2725	sigemptyset (&sigfd_set);
2481	sigprocmask (SIG_SETMASK, &prev, 0);	2726
2482	#endif	2727	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2728	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2729	ev_io_start (EV_A_ &sigfd_w);
		2730	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2731	}
2483	}	2732	}
		2733
		2734	if (sigfd >= 0)
		2735	{
		2736	/* TODO: check .head */
		2737	sigaddset (&sigfd_set, w->signum);
		2738	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2739
		2740	signalfd (sigfd, &sigfd_set, 0);
		2741	}
		2742	#endif
2484		2743
2485	ev_start (EV_A_ (W)w, 1);	2744	ev_start (EV_A_ (W)w, 1);
2486	wlist_add (&signals [w->signum - 1].head, (WL)w);	2745	wlist_add (&signals [w->signum - 1].head, (WL)w);
2487		2746
2488	if (!((WL)w)->next)	2747	if (!((WL)w)->next)
		2748	# if EV_USE_SIGNALFD
		2749	if (sigfd < 0) /*TODO*/
		2750	# endif
2489	{	2751	{
2490	#if _WIN32	2752	# if _WIN32
		2753	evpipe_init (EV_A);
		2754
2491	signal (w->signum, ev_sighandler);	2755	signal (w->signum, ev_sighandler);
2492	#else	2756	# else
2493	struct sigaction sa;	2757	struct sigaction sa;
		2758
		2759	evpipe_init (EV_A);
		2760
2494	sa.sa_handler = ev_sighandler;	2761	sa.sa_handler = ev_sighandler;
2495	sigfillset (&sa.sa_mask);	2762	sigfillset (&sa.sa_mask);
2496	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2763	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2497	sigaction (w->signum, &sa, 0);	2764	sigaction (w->signum, &sa, 0);
		2765
		2766	sigemptyset (&sa.sa_mask);
		2767	sigaddset (&sa.sa_mask, w->signum);
		2768	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2498	#endif	2769	#endif
2499	}	2770	}
2500		2771
2501	EV_FREQUENT_CHECK;	2772	EV_FREQUENT_CHECK;
2502	}	2773	}
2503		2774
2504	void noinline	2775	void noinline
…		…
2512		2783
2513	wlist_del (&signals [w->signum - 1].head, (WL)w);	2784	wlist_del (&signals [w->signum - 1].head, (WL)w);
2514	ev_stop (EV_A_ (W)w);	2785	ev_stop (EV_A_ (W)w);
2515		2786
2516	if (!signals [w->signum - 1].head)	2787	if (!signals [w->signum - 1].head)
		2788	{
		2789	#if EV_MULTIPLICITY
		2790	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2791	#endif
		2792	#if EV_USE_SIGNALFD
		2793	if (sigfd >= 0)
		2794	{
		2795	sigset_t ss;
		2796
		2797	sigemptyset (&ss);
		2798	sigaddset (&ss, w->signum);
		2799	sigdelset (&sigfd_set, w->signum);
		2800
		2801	signalfd (sigfd, &sigfd_set, 0);
		2802	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2803	}
		2804	else
		2805	#endif
2517	signal (w->signum, SIG_DFL);	2806	signal (w->signum, SIG_DFL);
		2807	}
2518		2808
2519	EV_FREQUENT_CHECK;	2809	EV_FREQUENT_CHECK;
2520	}	2810	}
2521		2811
2522	void	2812	void
…		…
2570	static void noinline	2860	static void noinline
2571	infy_add (EV_P_ ev_stat *w)	2861	infy_add (EV_P_ ev_stat *w)
2572	{	2862	{
2573	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	2863	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);
2574		2864
2575	if (w->wd < 0)	2865	if (w->wd >= 0)
		2866	{
		2867	struct statfs sfs;
		2868
		2869	/* now local changes will be tracked by inotify, but remote changes won't */
		2870	/* unless the filesystem is known to be local, we therefore still poll */
		2871	/* also do poll on <2.6.25, but with normal frequency */
		2872
		2873	if (!fs_2625)
		2874	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2875	else if (!statfs (w->path, &sfs)
		2876	&& (sfs.f_type == 0x1373 /* devfs */
		2877	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2878	|| sfs.f_type == 0x3153464a /* jfs */
		2879	|| sfs.f_type == 0x52654973 /* reiser3 */
		2880	|| sfs.f_type == 0x01021994 /* tempfs */
		2881	|| sfs.f_type == 0x58465342 /* xfs */))
		2882	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2883	else
		2884	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2576	{	2885	}
		2886	else
		2887	{
		2888	/* can't use inotify, continue to stat */
2577	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2889	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2578	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2579		2890
2580	/* monitor some parent directory for speedup hints */	2891	/* if path is not there, monitor some parent directory for speedup hints */
2581	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2892	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2582	/* but an efficiency issue only */	2893	/* but an efficiency issue only */
2583	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2894	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2584	{	2895	{
2585	char path [4096];	2896	char path [4096];
…		…
2601	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2912	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2602	}	2913	}
2603	}	2914	}
2604		2915
2605	if (w->wd >= 0)	2916	if (w->wd >= 0)
2606	{
2607	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2917	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2608		2918
2609	/* now local changes will be tracked by inotify, but remote changes won't */	2919	/* now re-arm timer, if required */
2610	/* unless the filesystem it known to be local, we therefore still poll */	2920	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2611	/* also do poll on <2.6.25, but with normal frequency */
2612	struct statfs sfs;
2613
2614	if (fs_2625 && !statfs (w->path, &sfs))
2615	if (sfs.f_type == 0x1373 /* devfs */
2616	|| sfs.f_type == 0xEF53 /* ext2/3 */
2617	|| sfs.f_type == 0x3153464a /* jfs */
2618	|| sfs.f_type == 0x52654973 /* reiser3 */
2619	|| sfs.f_type == 0x01021994 /* tempfs */
2620	|| sfs.f_type == 0x58465342 /* xfs */)
2621	return;
2622
2623	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2624	ev_timer_again (EV_A_ &w->timer);	2921	ev_timer_again (EV_A_ &w->timer);
2625	}	2922	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2626	}	2923	}
2627		2924
2628	static void noinline	2925	static void noinline
2629	infy_del (EV_P_ ev_stat *w)	2926	infy_del (EV_P_ ev_stat *w)
2630	{	2927	{
…		…
2706	return;	3003	return;
2707		3004
2708	fs_2625 = 1;	3005	fs_2625 = 1;
2709	}	3006	}
2710		3007
		3008	inline_size int
		3009	infy_newfd (void)
		3010	{
		3011	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3012	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3013	if (fd >= 0)
		3014	return fd;
		3015	#endif
		3016	return inotify_init ();
		3017	}
		3018
2711	inline_size void	3019	inline_size void
2712	infy_init (EV_P)	3020	infy_init (EV_P)
2713	{	3021	{
2714	if (fs_fd != -2)	3022	if (fs_fd != -2)
2715	return;	3023	return;
2716		3024
2717	fs_fd = -1;	3025	fs_fd = -1;
2718		3026
2719	check_2625 (EV_A);	3027	check_2625 (EV_A);
2720		3028
2721	fs_fd = inotify_init ();	3029	fs_fd = infy_newfd ();
2722		3030
2723	if (fs_fd >= 0)	3031	if (fs_fd >= 0)
2724	{	3032	{
		3033	fd_intern (fs_fd);
2725	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3034	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2726	ev_set_priority (&fs_w, EV_MAXPRI);	3035	ev_set_priority (&fs_w, EV_MAXPRI);
2727	ev_io_start (EV_A_ &fs_w);	3036	ev_io_start (EV_A_ &fs_w);
		3037	ev_unref (EV_A);
2728	}	3038	}
2729	}	3039	}
2730		3040
2731	inline_size void	3041	inline_size void
2732	infy_fork (EV_P)	3042	infy_fork (EV_P)
…		…
2734	int slot;	3044	int slot;
2735		3045
2736	if (fs_fd < 0)	3046	if (fs_fd < 0)
2737	return;	3047	return;
2738		3048
		3049	ev_ref (EV_A);
		3050	ev_io_stop (EV_A_ &fs_w);
2739	close (fs_fd);	3051	close (fs_fd);
2740	fs_fd = inotify_init ();	3052	fs_fd = infy_newfd ();
		3053
		3054	if (fs_fd >= 0)
		3055	{
		3056	fd_intern (fs_fd);
		3057	ev_io_set (&fs_w, fs_fd, EV_READ);
		3058	ev_io_start (EV_A_ &fs_w);
		3059	ev_unref (EV_A);
		3060	}
2741		3061
2742	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3062	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2743	{	3063	{
2744	WL w_ = fs_hash [slot].head;	3064	WL w_ = fs_hash [slot].head;
2745	fs_hash [slot].head = 0;	3065	fs_hash [slot].head = 0;
…		…
2752	w->wd = -1;	3072	w->wd = -1;
2753		3073
2754	if (fs_fd >= 0)	3074	if (fs_fd >= 0)
2755	infy_add (EV_A_ w); /* re-add, no matter what */	3075	infy_add (EV_A_ w); /* re-add, no matter what */
2756	else	3076	else
		3077	{
		3078	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3079	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2757	ev_timer_again (EV_A_ &w->timer);	3080	ev_timer_again (EV_A_ &w->timer);
		3081	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3082	}
2758	}	3083	}
2759	}	3084	}
2760	}	3085	}
2761		3086
2762	#endif	3087	#endif
…		…
2779	static void noinline	3104	static void noinline
2780	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3105	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2781	{	3106	{
2782	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3107	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2783		3108
2784	/* we copy this here each the time so that */	3109	ev_statdata prev = w->attr;
2785	/* prev has the old value when the callback gets invoked */
2786	w->prev = w->attr;
2787	ev_stat_stat (EV_A_ w);	3110	ev_stat_stat (EV_A_ w);
2788		3111
2789	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3112	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2790	if (	3113	if (
2791	w->prev.st_dev != w->attr.st_dev	3114	prev.st_dev != w->attr.st_dev
2792	|| w->prev.st_ino != w->attr.st_ino	3115	|| prev.st_ino != w->attr.st_ino
2793	|| w->prev.st_mode != w->attr.st_mode	3116	|| prev.st_mode != w->attr.st_mode
2794	|| w->prev.st_nlink != w->attr.st_nlink	3117	|| prev.st_nlink != w->attr.st_nlink
2795	|| w->prev.st_uid != w->attr.st_uid	3118	|| prev.st_uid != w->attr.st_uid
2796	|| w->prev.st_gid != w->attr.st_gid	3119	|| prev.st_gid != w->attr.st_gid
2797	|| w->prev.st_rdev != w->attr.st_rdev	3120	|| prev.st_rdev != w->attr.st_rdev
2798	|| w->prev.st_size != w->attr.st_size	3121	|| prev.st_size != w->attr.st_size
2799	|| w->prev.st_atime != w->attr.st_atime	3122	|| prev.st_atime != w->attr.st_atime
2800	|| w->prev.st_mtime != w->attr.st_mtime	3123	|| prev.st_mtime != w->attr.st_mtime
2801	|| w->prev.st_ctime != w->attr.st_ctime	3124	|| prev.st_ctime != w->attr.st_ctime
2802	) {	3125	) {
		3126	/* we only update w->prev on actual differences */
		3127	/* in case we test more often than invoke the callback, */
		3128	/* to ensure that prev is always different to attr */
		3129	w->prev = prev;
		3130
2803	#if EV_USE_INOTIFY	3131	#if EV_USE_INOTIFY
2804	if (fs_fd >= 0)	3132	if (fs_fd >= 0)
2805	{	3133	{
2806	infy_del (EV_A_ w);	3134	infy_del (EV_A_ w);
2807	infy_add (EV_A_ w);	3135	infy_add (EV_A_ w);
…		…
2832		3160
2833	if (fs_fd >= 0)	3161	if (fs_fd >= 0)
2834	infy_add (EV_A_ w);	3162	infy_add (EV_A_ w);
2835	else	3163	else
2836	#endif	3164	#endif
		3165	{
2837	ev_timer_again (EV_A_ &w->timer);	3166	ev_timer_again (EV_A_ &w->timer);
		3167	ev_unref (EV_A);
		3168	}
2838		3169
2839	ev_start (EV_A_ (W)w, 1);	3170	ev_start (EV_A_ (W)w, 1);
2840		3171
2841	EV_FREQUENT_CHECK;	3172	EV_FREQUENT_CHECK;
2842	}	3173	}
…		…
2851	EV_FREQUENT_CHECK;	3182	EV_FREQUENT_CHECK;
2852		3183
2853	#if EV_USE_INOTIFY	3184	#if EV_USE_INOTIFY
2854	infy_del (EV_A_ w);	3185	infy_del (EV_A_ w);
2855	#endif	3186	#endif
		3187
		3188	if (ev_is_active (&w->timer))
		3189	{
		3190	ev_ref (EV_A);
2856	ev_timer_stop (EV_A_ &w->timer);	3191	ev_timer_stop (EV_A_ &w->timer);
		3192	}
2857		3193
2858	ev_stop (EV_A_ (W)w);	3194	ev_stop (EV_A_ (W)w);
2859		3195
2860	EV_FREQUENT_CHECK;	3196	EV_FREQUENT_CHECK;
2861	}	3197	}
…		…
3002	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3338	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3003	{	3339	{
3004	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3340	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3005		3341
3006	{	3342	{
3007	struct ev_loop *loop = w->other;	3343	EV_P = w->other;
3008		3344
3009	while (fdchangecnt)	3345	while (fdchangecnt)
3010	{	3346	{
3011	fd_reify (EV_A);	3347	fd_reify (EV_A);
3012	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3348	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
3020	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3356	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3021		3357
3022	ev_embed_stop (EV_A_ w);	3358	ev_embed_stop (EV_A_ w);
3023		3359
3024	{	3360	{
3025	struct ev_loop *loop = w->other;	3361	EV_P = w->other;
3026		3362
3027	ev_loop_fork (EV_A);	3363	ev_loop_fork (EV_A);
3028	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3364	ev_loop (EV_A_ EVLOOP_NONBLOCK);
3029	}	3365	}
3030		3366
…		…
3044	{	3380	{
3045	if (expect_false (ev_is_active (w)))	3381	if (expect_false (ev_is_active (w)))
3046	return;	3382	return;
3047		3383
3048	{	3384	{
3049	struct ev_loop *loop = w->other;	3385	EV_P = w->other;
3050	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3386	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3051	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3387	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3052	}	3388	}
3053		3389
3054	EV_FREQUENT_CHECK;	3390	EV_FREQUENT_CHECK;
…		…
3166		3502
3167	void	3503	void
3168	ev_async_send (EV_P_ ev_async *w)	3504	ev_async_send (EV_P_ ev_async *w)
3169	{	3505	{
3170	w->sent = 1;	3506	w->sent = 1;
3171	evpipe_write (EV_A_ &gotasync);	3507	evpipe_write (EV_A_ &async_pending);
3172	}	3508	}
3173	#endif	3509	#endif
3174		3510
3175	/*****************************************************************************/	3511	/*****************************************************************************/
3176		3512
…		…
3325	if (types & EV_CHECK)	3661	if (types & EV_CHECK)
3326	for (i = checkcnt; i--; )	3662	for (i = checkcnt; i--; )
3327	cb (EV_A_ EV_CHECK, checks [i]);	3663	cb (EV_A_ EV_CHECK, checks [i]);
3328		3664
3329	if (types & EV_SIGNAL)	3665	if (types & EV_SIGNAL)
3330	for (i = 0; i < signalmax; ++i)	3666	for (i = 0; i < EV_NSIG - 1; ++i)
3331	for (wl = signals [i].head; wl; )	3667	for (wl = signals [i].head; wl; )
3332	{	3668	{
3333	wn = wl->next;	3669	wn = wl->next;
3334	cb (EV_A_ EV_SIGNAL, wl);	3670	cb (EV_A_ EV_SIGNAL, wl);
3335	wl = wn;	3671	wl = wn;

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