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Comparing libev/ev.c (file contents):
Revision 1.278 by root, Tue Jan 6 19:46:56 2009 UTC vs.
Revision 1.316 by root, Fri Sep 18 21:02:12 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
67	# endif	69	# endif
68	# ifndef EV_USE_REALTIME	70	# ifndef EV_USE_REALTIME
69	# define EV_USE_REALTIME 1	71	# define EV_USE_REALTIME 0
70	# endif	72	# endif
71	# else	73	# else
72	# ifndef EV_USE_MONOTONIC	74	# ifndef EV_USE_MONOTONIC
73	# define EV_USE_MONOTONIC 0	75	# define EV_USE_MONOTONIC 0
74	# endif	76	# endif
…		…
128	# ifndef EV_USE_INOTIFY	130	# ifndef EV_USE_INOTIFY
129	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
130	# define EV_USE_INOTIFY 1	132	# define EV_USE_INOTIFY 1
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
		135	# endif
		136	# endif
		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
133	# endif	143	# endif
134	# endif	144	# endif
135		145
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
…		…
176	# endif	186	# endif
177	#endif	187	#endif
178		188
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
180		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	#if defined (EV_NSIG)
		193	/* use what's provided */
		194	#elif defined (NSIG)
		195	# define EV_NSIG (NSIG)
		196	#elif defined(_NSIG)
		197	# define EV_NSIG (_NSIG)
		198	#elif defined (SIGMAX)
		199	# define EV_NSIG (SIGMAX+1)
		200	#elif defined (SIG_MAX)
		201	# define EV_NSIG (SIG_MAX+1)
		202	#elif defined (_SIG_MAX)
		203	# define EV_NSIG (_SIG_MAX+1)
		204	#elif defined (MAXSIG)
		205	# define EV_NSIG (MAXSIG+1)
		206	#elif defined (MAX_SIG)
		207	# define EV_NSIG (MAX_SIG+1)
		208	#elif defined (SIGARRAYSIZE)
		209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		210	#elif defined (_sys_nsig)
		211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		212	#else
		213	# error "unable to find value for NSIG, please report"
		214	/* to make it compile regardless, just remove the above line */
		215	# define EV_NSIG 65
		216	#endif
		217
181	#ifndef EV_USE_CLOCK_SYSCALL	218	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	219	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	220	# define EV_USE_CLOCK_SYSCALL 1
184	# else	221	# else
185	# define EV_USE_CLOCK_SYSCALL 0	222	# define EV_USE_CLOCK_SYSCALL 0
…		…
193	# define EV_USE_MONOTONIC 0	230	# define EV_USE_MONOTONIC 0
194	# endif	231	# endif
195	#endif	232	#endif
196		233
197	#ifndef EV_USE_REALTIME	234	#ifndef EV_USE_REALTIME
198	# define EV_USE_REALTIME 0	235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199	#endif	236	#endif
200		237
201	#ifndef EV_USE_NANOSLEEP	238	#ifndef EV_USE_NANOSLEEP
202	# if _POSIX_C_SOURCE >= 199309L	239	# if _POSIX_C_SOURCE >= 199309L
203	# define EV_USE_NANOSLEEP 1	240	# define EV_USE_NANOSLEEP 1
…		…
264	# else	301	# else
265	# define EV_USE_EVENTFD 0	302	# define EV_USE_EVENTFD 0
266	# endif	303	# endif
267	#endif	304	#endif
268		305
		306	#ifndef EV_USE_SIGNALFD
		307	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		308	# define EV_USE_SIGNALFD 1
		309	# else
		310	# define EV_USE_SIGNALFD 0
		311	# endif
		312	#endif
		313
269	#if 0 /* debugging */	314	#if 0 /* debugging */
270	# define EV_VERIFY 3	315	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	316	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	317	# define EV_HEAP_CACHE_AT 1
273	#endif	318	#endif
…		…
280	# define EV_USE_4HEAP !EV_MINIMAL	325	# define EV_USE_4HEAP !EV_MINIMAL
281	#endif	326	#endif
282		327
283	#ifndef EV_HEAP_CACHE_AT	328	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	329	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		330	#endif
		331
		332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		333	/* which makes programs even slower. might work on other unices, too. */
		334	#if EV_USE_CLOCK_SYSCALL
		335	# include <syscall.h>
		336	# ifdef SYS_clock_gettime
		337	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		338	# undef EV_USE_MONOTONIC
		339	# define EV_USE_MONOTONIC 1
		340	# else
		341	# undef EV_USE_CLOCK_SYSCALL
		342	# define EV_USE_CLOCK_SYSCALL 0
		343	# endif
285	#endif	344	#endif
286		345
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
288		347
289	#ifndef CLOCK_MONOTONIC	348	#ifndef CLOCK_MONOTONIC
…		…
320		379
321	#if EV_SELECT_IS_WINSOCKET	380	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	381	# include <winsock.h>
323	#endif	382	#endif
324		383
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	384	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	385	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	386	# include <stdint.h>
		387	# ifndef EFD_NONBLOCK
		388	# define EFD_NONBLOCK O_NONBLOCK
		389	# endif
		390	# ifndef EFD_CLOEXEC
		391	# ifdef O_CLOEXEC
		392	# define EFD_CLOEXEC O_CLOEXEC
		393	# else
		394	# define EFD_CLOEXEC 02000000
		395	# endif
		396	# endif
337	# ifdef __cplusplus	397	# ifdef __cplusplus
338	extern "C" {	398	extern "C" {
339	# endif	399	# endif
340	int eventfd (unsigned int initval, int flags);	400	int eventfd (unsigned int initval, int flags);
341	# ifdef __cplusplus	401	# ifdef __cplusplus
342	}	402	}
343	# endif	403	# endif
344	#endif	404	#endif
		405
		406	#if EV_USE_SIGNALFD
		407	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		408	# include <stdint.h>
		409	# ifndef SFD_NONBLOCK
		410	# define SFD_NONBLOCK O_NONBLOCK
		411	# endif
		412	# ifndef SFD_CLOEXEC
		413	# ifdef O_CLOEXEC
		414	# define SFD_CLOEXEC O_CLOEXEC
		415	# else
		416	# define SFD_CLOEXEC 02000000
		417	# endif
		418	# endif
		419	# ifdef __cplusplus
		420	extern "C" {
		421	# endif
		422	int signalfd (int fd, const sigset_t *mask, int flags);
		423
		424	struct signalfd_siginfo
		425	{
		426	uint32_t ssi_signo;
		427	char pad[128 - sizeof (uint32_t)];
		428	};
		429	# ifdef __cplusplus
		430	}
		431	# endif
		432	#endif
		433
345		434
346	/**/	435	/**/
347		436
348	#if EV_VERIFY >= 3	437	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
361	*/	450	*/
362	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	451	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363		452
364	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	453	#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) */	454	#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		455
368	#if __GNUC__ >= 4	456	#if __GNUC__ >= 4
369	# define expect(expr,value) __builtin_expect ((expr),(value))	457	# define expect(expr,value) __builtin_expect ((expr),(value))
370	# define noinline __attribute__ ((noinline))	458	# define noinline __attribute__ ((noinline))
371	#else	459	#else
…		…
384	# define inline_speed static noinline	472	# define inline_speed static noinline
385	#else	473	#else
386	# define inline_speed static inline	474	# define inline_speed static inline
387	#endif	475	#endif
388		476
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	477	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		478
		479	#if EV_MINPRI == EV_MAXPRI
		480	# define ABSPRI(w) (((W)w), 0)
		481	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	482	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		483	#endif
391		484
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	485	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	486	#define EMPTY2(a,b) /* used to suppress some warnings */
394		487
395	typedef ev_watcher *W;	488	typedef ev_watcher *W;
…		…
397	typedef ev_watcher_time *WT;	490	typedef ev_watcher_time *WT;
398		491
399	#define ev_active(w) ((W)(w))->active	492	#define ev_active(w) ((W)(w))->active
400	#define ev_at(w) ((WT)(w))->at	493	#define ev_at(w) ((WT)(w))->at
401		494
402	#if EV_USE_MONOTONIC	495	#if EV_USE_REALTIME
403	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	496	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
404	/* giving it a reasonably high chance of working on typical architetcures */	497	/* giving it a reasonably high chance of working on typical architetcures */
		498	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		499	#endif
		500
		501	#if EV_USE_MONOTONIC
405	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	502	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		503	#endif
		504
		505	#ifndef EV_FD_TO_WIN32_HANDLE
		506	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		507	#endif
		508	#ifndef EV_WIN32_HANDLE_TO_FD
		509	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
		510	#endif
		511	#ifndef EV_WIN32_CLOSE_FD
		512	# define EV_WIN32_CLOSE_FD(fd) close (fd)
406	#endif	513	#endif
407		514
408	#ifdef _WIN32	515	#ifdef _WIN32
409	# include "ev_win32.c"	516	# include "ev_win32.c"
410	#endif	517	#endif
…		…
474	#define ev_malloc(size) ev_realloc (0, (size))	581	#define ev_malloc(size) ev_realloc (0, (size))
475	#define ev_free(ptr) ev_realloc ((ptr), 0)	582	#define ev_free(ptr) ev_realloc ((ptr), 0)
476		583
477	/*****************************************************************************/	584	/*****************************************************************************/
478		585
		586	/* set in reify when reification needed */
		587	#define EV_ANFD_REIFY 1
		588
		589	/* file descriptor info structure */
479	typedef struct	590	typedef struct
480	{	591	{
481	WL head;	592	WL head;
482	unsigned char events;	593	unsigned char events; /* the events watched for */
483	unsigned char reify;	594	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
484	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	595	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
485	unsigned char unused;	596	unsigned char unused;
486	#if EV_USE_EPOLL	597	#if EV_USE_EPOLL
487	unsigned int egen; /* generation counter to counter epoll bugs */	598	unsigned int egen; /* generation counter to counter epoll bugs */
488	#endif	599	#endif
489	#if EV_SELECT_IS_WINSOCKET	600	#if EV_SELECT_IS_WINSOCKET
490	SOCKET handle;	601	SOCKET handle;
491	#endif	602	#endif
492	} ANFD;	603	} ANFD;
493		604
		605	/* stores the pending event set for a given watcher */
494	typedef struct	606	typedef struct
495	{	607	{
496	W w;	608	W w;
497	int events;	609	int events; /* the pending event set for the given watcher */
498	} ANPENDING;	610	} ANPENDING;
499		611
500	#if EV_USE_INOTIFY	612	#if EV_USE_INOTIFY
501	/* hash table entry per inotify-id */	613	/* hash table entry per inotify-id */
502	typedef struct	614	typedef struct
…		…
505	} ANFS;	617	} ANFS;
506	#endif	618	#endif
507		619
508	/* Heap Entry */	620	/* Heap Entry */
509	#if EV_HEAP_CACHE_AT	621	#if EV_HEAP_CACHE_AT
		622	/* a heap element */
510	typedef struct {	623	typedef struct {
511	ev_tstamp at;	624	ev_tstamp at;
512	WT w;	625	WT w;
513	} ANHE;	626	} ANHE;
514		627
515	#define ANHE_w(he) (he).w /* access watcher, read-write */	628	#define ANHE_w(he) (he).w /* access watcher, read-write */
516	#define ANHE_at(he) (he).at /* access cached at, read-only */	629	#define ANHE_at(he) (he).at /* access cached at, read-only */
517	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	630	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
518	#else	631	#else
		632	/* a heap element */
519	typedef WT ANHE;	633	typedef WT ANHE;
520		634
521	#define ANHE_w(he) (he)	635	#define ANHE_w(he) (he)
522	#define ANHE_at(he) (he)->at	636	#define ANHE_at(he) (he)->at
523	#define ANHE_at_cache(he)	637	#define ANHE_at_cache(he)
…		…
547		661
548	static int ev_default_loop_ptr;	662	static int ev_default_loop_ptr;
549		663
550	#endif	664	#endif
551		665
		666	#if EV_MINIMAL < 2
		667	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		668	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		669	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		670	#else
		671	# define EV_RELEASE_CB (void)0
		672	# define EV_ACQUIRE_CB (void)0
		673	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		674	#endif
		675
		676	#define EVUNLOOP_RECURSE 0x80
		677
552	/*****************************************************************************/	678	/*****************************************************************************/
553		679
		680	#ifndef EV_HAVE_EV_TIME
554	ev_tstamp	681	ev_tstamp
555	ev_time (void)	682	ev_time (void)
556	{	683	{
557	#if EV_USE_REALTIME	684	#if EV_USE_REALTIME
		685	if (expect_true (have_realtime))
		686	{
558	struct timespec ts;	687	struct timespec ts;
559	clock_gettime (CLOCK_REALTIME, &ts);	688	clock_gettime (CLOCK_REALTIME, &ts);
560	return ts.tv_sec + ts.tv_nsec * 1e-9;	689	return ts.tv_sec + ts.tv_nsec * 1e-9;
561	#else	690	}
		691	#endif
		692
562	struct timeval tv;	693	struct timeval tv;
563	gettimeofday (&tv, 0);	694	gettimeofday (&tv, 0);
564	return tv.tv_sec + tv.tv_usec * 1e-6;	695	return tv.tv_sec + tv.tv_usec * 1e-6;
565	#endif
566	}	696	}
		697	#endif
567		698
568	ev_tstamp inline_size	699	inline_size ev_tstamp
569	get_clock (void)	700	get_clock (void)
570	{	701	{
571	#if EV_USE_MONOTONIC	702	#if EV_USE_MONOTONIC
572	if (expect_true (have_monotonic))	703	if (expect_true (have_monotonic))
573	{	704	{
…		…
607		738
608	tv.tv_sec = (time_t)delay;	739	tv.tv_sec = (time_t)delay;
609	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	740	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
610		741
611	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	742	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
612	/* somehting nto guaranteed by newer posix versions, but guaranteed */	743	/* something not guaranteed by newer posix versions, but guaranteed */
613	/* by older ones */	744	/* by older ones */
614	select (0, 0, 0, 0, &tv);	745	select (0, 0, 0, 0, &tv);
615	#endif	746	#endif
616	}	747	}
617	}	748	}
618		749
619	/*****************************************************************************/	750	/*****************************************************************************/
620		751
621	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	752	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
622		753
623	int inline_size	754	/* find a suitable new size for the given array, */
		755	/* hopefully by rounding to a ncie-to-malloc size */
		756	inline_size int
624	array_nextsize (int elem, int cur, int cnt)	757	array_nextsize (int elem, int cur, int cnt)
625	{	758	{
626	int ncur = cur + 1;	759	int ncur = cur + 1;
627		760
628	do	761	do
…		…
669	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	802	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
670	}	803	}
671	#endif	804	#endif
672		805
673	#define array_free(stem, idx) \	806	#define array_free(stem, idx) \
674	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	807	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
675		808
676	/*****************************************************************************/	809	/*****************************************************************************/
		810
		811	/* dummy callback for pending events */
		812	static void noinline
		813	pendingcb (EV_P_ ev_prepare *w, int revents)
		814	{
		815	}
677		816
678	void noinline	817	void noinline
679	ev_feed_event (EV_P_ void *w, int revents)	818	ev_feed_event (EV_P_ void *w, int revents)
680	{	819	{
681	W w_ = (W)w;	820	W w_ = (W)w;
…		…
690	pendings [pri][w_->pending - 1].w = w_;	829	pendings [pri][w_->pending - 1].w = w_;
691	pendings [pri][w_->pending - 1].events = revents;	830	pendings [pri][w_->pending - 1].events = revents;
692	}	831	}
693	}	832	}
694		833
695	void inline_speed	834	inline_speed void
		835	feed_reverse (EV_P_ W w)
		836	{
		837	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		838	rfeeds [rfeedcnt++] = w;
		839	}
		840
		841	inline_size void
		842	feed_reverse_done (EV_P_ int revents)
		843	{
		844	do
		845	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		846	while (rfeedcnt);
		847	}
		848
		849	inline_speed void
696	queue_events (EV_P_ W *events, int eventcnt, int type)	850	queue_events (EV_P_ W *events, int eventcnt, int type)
697	{	851	{
698	int i;	852	int i;
699		853
700	for (i = 0; i < eventcnt; ++i)	854	for (i = 0; i < eventcnt; ++i)
701	ev_feed_event (EV_A_ events [i], type);	855	ev_feed_event (EV_A_ events [i], type);
702	}	856	}
703		857
704	/*****************************************************************************/	858	/*****************************************************************************/
705		859
706	void inline_speed	860	inline_speed void
707	fd_event (EV_P_ int fd, int revents)	861	fd_event_nc (EV_P_ int fd, int revents)
708	{	862	{
709	ANFD *anfd = anfds + fd;	863	ANFD *anfd = anfds + fd;
710	ev_io *w;	864	ev_io *w;
711		865
712	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	866	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
716	if (ev)	870	if (ev)
717	ev_feed_event (EV_A_ (W)w, ev);	871	ev_feed_event (EV_A_ (W)w, ev);
718	}	872	}
719	}	873	}
720		874
		875	/* do not submit kernel events for fds that have reify set */
		876	/* because that means they changed while we were polling for new events */
		877	inline_speed void
		878	fd_event (EV_P_ int fd, int revents)
		879	{
		880	ANFD *anfd = anfds + fd;
		881
		882	if (expect_true (!anfd->reify))
		883	fd_event_nc (EV_A_ fd, revents);
		884	}
		885
721	void	886	void
722	ev_feed_fd_event (EV_P_ int fd, int revents)	887	ev_feed_fd_event (EV_P_ int fd, int revents)
723	{	888	{
724	if (fd >= 0 && fd < anfdmax)	889	if (fd >= 0 && fd < anfdmax)
725	fd_event (EV_A_ fd, revents);	890	fd_event_nc (EV_A_ fd, revents);
726	}	891	}
727		892
728	void inline_size	893	/* make sure the external fd watch events are in-sync */
		894	/* with the kernel/libev internal state */
		895	inline_size void
729	fd_reify (EV_P)	896	fd_reify (EV_P)
730	{	897	{
731	int i;	898	int i;
732		899
733	for (i = 0; i < fdchangecnt; ++i)	900	for (i = 0; i < fdchangecnt; ++i)
…		…
743		910
744	#if EV_SELECT_IS_WINSOCKET	911	#if EV_SELECT_IS_WINSOCKET
745	if (events)	912	if (events)
746	{	913	{
747	unsigned long arg;	914	unsigned long arg;
748	#ifdef EV_FD_TO_WIN32_HANDLE
749	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	915	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
750	#else
751	anfd->handle = _get_osfhandle (fd);
752	#endif
753	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	916	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
754	}	917	}
755	#endif	918	#endif
756		919
757	{	920	{
…		…
759	unsigned char o_reify = anfd->reify;	922	unsigned char o_reify = anfd->reify;
760		923
761	anfd->reify = 0;	924	anfd->reify = 0;
762	anfd->events = events;	925	anfd->events = events;
763		926
764	if (o_events != events || o_reify & EV_IOFDSET)	927	if (o_events != events || o_reify & EV__IOFDSET)
765	backend_modify (EV_A_ fd, o_events, events);	928	backend_modify (EV_A_ fd, o_events, events);
766	}	929	}
767	}	930	}
768		931
769	fdchangecnt = 0;	932	fdchangecnt = 0;
770	}	933	}
771		934
772	void inline_size	935	/* something about the given fd changed */
		936	inline_size void
773	fd_change (EV_P_ int fd, int flags)	937	fd_change (EV_P_ int fd, int flags)
774	{	938	{
775	unsigned char reify = anfds [fd].reify;	939	unsigned char reify = anfds [fd].reify;
776	anfds [fd].reify |= flags;	940	anfds [fd].reify |= flags;
777		941
…		…
781	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	945	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
782	fdchanges [fdchangecnt - 1] = fd;	946	fdchanges [fdchangecnt - 1] = fd;
783	}	947	}
784	}	948	}
785		949
786	void inline_speed	950	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		951	inline_speed void
787	fd_kill (EV_P_ int fd)	952	fd_kill (EV_P_ int fd)
788	{	953	{
789	ev_io *w;	954	ev_io *w;
790		955
791	while ((w = (ev_io *)anfds [fd].head))	956	while ((w = (ev_io *)anfds [fd].head))
…		…
793	ev_io_stop (EV_A_ w);	958	ev_io_stop (EV_A_ w);
794	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	959	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
795	}	960	}
796	}	961	}
797		962
798	int inline_size	963	/* check whether the given fd is atcually valid, for error recovery */
		964	inline_size int
799	fd_valid (int fd)	965	fd_valid (int fd)
800	{	966	{
801	#ifdef _WIN32	967	#ifdef _WIN32
802	return _get_osfhandle (fd) != -1;	968	return _get_osfhandle (fd) != -1;
803	#else	969	#else
…		…
825		991
826	for (fd = anfdmax; fd--; )	992	for (fd = anfdmax; fd--; )
827	if (anfds [fd].events)	993	if (anfds [fd].events)
828	{	994	{
829	fd_kill (EV_A_ fd);	995	fd_kill (EV_A_ fd);
830	return;	996	break;
831	}	997	}
832	}	998	}
833		999
834	/* usually called after fork if backend needs to re-arm all fds from scratch */	1000	/* usually called after fork if backend needs to re-arm all fds from scratch */
835	static void noinline	1001	static void noinline
…		…
840	for (fd = 0; fd < anfdmax; ++fd)	1006	for (fd = 0; fd < anfdmax; ++fd)
841	if (anfds [fd].events)	1007	if (anfds [fd].events)
842	{	1008	{
843	anfds [fd].events = 0;	1009	anfds [fd].events = 0;
844	anfds [fd].emask = 0;	1010	anfds [fd].emask = 0;
845	fd_change (EV_A_ fd, EV_IOFDSET | 1);	1011	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
846	}	1012	}
847	}	1013	}
848		1014
849	/*****************************************************************************/	1015	/*****************************************************************************/
850		1016
…		…
866	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	1032	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
867	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	1033	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
868	#define UPHEAP_DONE(p,k) ((p) == (k))	1034	#define UPHEAP_DONE(p,k) ((p) == (k))
869		1035
870	/* away from the root */	1036	/* away from the root */
871	void inline_speed	1037	inline_speed void
872	downheap (ANHE *heap, int N, int k)	1038	downheap (ANHE *heap, int N, int k)
873	{	1039	{
874	ANHE he = heap [k];	1040	ANHE he = heap [k];
875	ANHE *E = heap + N + HEAP0;	1041	ANHE *E = heap + N + HEAP0;
876		1042
…		…
916	#define HEAP0 1	1082	#define HEAP0 1
917	#define HPARENT(k) ((k) >> 1)	1083	#define HPARENT(k) ((k) >> 1)
918	#define UPHEAP_DONE(p,k) (!(p))	1084	#define UPHEAP_DONE(p,k) (!(p))
919		1085
920	/* away from the root */	1086	/* away from the root */
921	void inline_speed	1087	inline_speed void
922	downheap (ANHE *heap, int N, int k)	1088	downheap (ANHE *heap, int N, int k)
923	{	1089	{
924	ANHE he = heap [k];	1090	ANHE he = heap [k];
925		1091
926	for (;;)	1092	for (;;)
927	{	1093	{
928	int c = k << 1;	1094	int c = k << 1;
929		1095
930	if (c > N + HEAP0 - 1)	1096	if (c >= N + HEAP0)
931	break;	1097	break;
932		1098
933	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1099	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
934	? 1 : 0;	1100	? 1 : 0;
935		1101
…		…
946	ev_active (ANHE_w (he)) = k;	1112	ev_active (ANHE_w (he)) = k;
947	}	1113	}
948	#endif	1114	#endif
949		1115
950	/* towards the root */	1116	/* towards the root */
951	void inline_speed	1117	inline_speed void
952	upheap (ANHE *heap, int k)	1118	upheap (ANHE *heap, int k)
953	{	1119	{
954	ANHE he = heap [k];	1120	ANHE he = heap [k];
955		1121
956	for (;;)	1122	for (;;)
…		…
967		1133
968	heap [k] = he;	1134	heap [k] = he;
969	ev_active (ANHE_w (he)) = k;	1135	ev_active (ANHE_w (he)) = k;
970	}	1136	}
971		1137
972	void inline_size	1138	/* move an element suitably so it is in a correct place */
		1139	inline_size void
973	adjustheap (ANHE *heap, int N, int k)	1140	adjustheap (ANHE *heap, int N, int k)
974	{	1141	{
975	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1142	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
976	upheap (heap, k);	1143	upheap (heap, k);
977	else	1144	else
978	downheap (heap, N, k);	1145	downheap (heap, N, k);
979	}	1146	}
980		1147
981	/* rebuild the heap: this function is used only once and executed rarely */	1148	/* rebuild the heap: this function is used only once and executed rarely */
982	void inline_size	1149	inline_size void
983	reheap (ANHE *heap, int N)	1150	reheap (ANHE *heap, int N)
984	{	1151	{
985	int i;	1152	int i;
986		1153
987	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1154	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
990	upheap (heap, i + HEAP0);	1157	upheap (heap, i + HEAP0);
991	}	1158	}
992		1159
993	/*****************************************************************************/	1160	/*****************************************************************************/
994		1161
		1162	/* associate signal watchers to a signal signal */
995	typedef struct	1163	typedef struct
996	{	1164	{
		1165	EV_ATOMIC_T pending;
		1166	#if EV_MULTIPLICITY
		1167	EV_P;
		1168	#endif
997	WL head;	1169	WL head;
998	EV_ATOMIC_T gotsig;
999	} ANSIG;	1170	} ANSIG;
1000		1171
1001	static ANSIG *signals;	1172	static ANSIG signals [EV_NSIG - 1];
1002	static int signalmax;
1003
1004	static EV_ATOMIC_T gotsig;
1005		1173
1006	/*****************************************************************************/	1174	/*****************************************************************************/
1007		1175
1008	void inline_speed	1176	/* used to prepare libev internal fd's */
		1177	/* this is not fork-safe */
		1178	inline_speed void
1009	fd_intern (int fd)	1179	fd_intern (int fd)
1010	{	1180	{
1011	#ifdef _WIN32	1181	#ifdef _WIN32
1012	unsigned long arg = 1;	1182	unsigned long arg = 1;
1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1183	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1018	}	1188	}
1019		1189
1020	static void noinline	1190	static void noinline
1021	evpipe_init (EV_P)	1191	evpipe_init (EV_P)
1022	{	1192	{
1023	if (!ev_is_active (&pipeev))	1193	if (!ev_is_active (&pipe_w))
1024	{	1194	{
1025	#if EV_USE_EVENTFD	1195	#if EV_USE_EVENTFD
		1196	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1197	if (evfd < 0 && errno == EINVAL)
1026	if ((evfd = eventfd (0, 0)) >= 0)	1198	evfd = eventfd (0, 0);
		1199
		1200	if (evfd >= 0)
1027	{	1201	{
1028	evpipe [0] = -1;	1202	evpipe [0] = -1;
1029	fd_intern (evfd);	1203	fd_intern (evfd); /* doing it twice doesn't hurt */
1030	ev_io_set (&pipeev, evfd, EV_READ);	1204	ev_io_set (&pipe_w, evfd, EV_READ);
1031	}	1205	}
1032	else	1206	else
1033	#endif	1207	#endif
1034	{	1208	{
1035	while (pipe (evpipe))	1209	while (pipe (evpipe))
1036	ev_syserr ("(libev) error creating signal/async pipe");	1210	ev_syserr ("(libev) error creating signal/async pipe");
1037		1211
1038	fd_intern (evpipe [0]);	1212	fd_intern (evpipe [0]);
1039	fd_intern (evpipe [1]);	1213	fd_intern (evpipe [1]);
1040	ev_io_set (&pipeev, evpipe [0], EV_READ);	1214	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1041	}	1215	}
1042		1216
1043	ev_io_start (EV_A_ &pipeev);	1217	ev_io_start (EV_A_ &pipe_w);
1044	ev_unref (EV_A); /* watcher should not keep loop alive */	1218	ev_unref (EV_A); /* watcher should not keep loop alive */
1045	}	1219	}
1046	}	1220	}
1047		1221
1048	void inline_size	1222	inline_size void
1049	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1223	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1050	{	1224	{
1051	if (!*flag)	1225	if (!*flag)
1052	{	1226	{
1053	int old_errno = errno; /* save errno because write might clobber it */	1227	int old_errno = errno; /* save errno because write might clobber it */
…		…
1066		1240
1067	errno = old_errno;	1241	errno = old_errno;
1068	}	1242	}
1069	}	1243	}
1070		1244
		1245	/* called whenever the libev signal pipe */
		1246	/* got some events (signal, async) */
1071	static void	1247	static void
1072	pipecb (EV_P_ ev_io *iow, int revents)	1248	pipecb (EV_P_ ev_io *iow, int revents)
1073	{	1249	{
		1250	int i;
		1251
1074	#if EV_USE_EVENTFD	1252	#if EV_USE_EVENTFD
1075	if (evfd >= 0)	1253	if (evfd >= 0)
1076	{	1254	{
1077	uint64_t counter;	1255	uint64_t counter;
1078	read (evfd, &counter, sizeof (uint64_t));	1256	read (evfd, &counter, sizeof (uint64_t));
…		…
1082	{	1260	{
1083	char dummy;	1261	char dummy;
1084	read (evpipe [0], &dummy, 1);	1262	read (evpipe [0], &dummy, 1);
1085	}	1263	}
1086		1264
1087	if (gotsig && ev_is_default_loop (EV_A))	1265	if (sig_pending)
1088	{	1266	{
1089	int signum;	1267	sig_pending = 0;
1090	gotsig = 0;
1091		1268
1092	for (signum = signalmax; signum--; )	1269	for (i = EV_NSIG - 1; i--; )
1093	if (signals [signum].gotsig)	1270	if (expect_false (signals [i].pending))
1094	ev_feed_signal_event (EV_A_ signum + 1);	1271	ev_feed_signal_event (EV_A_ i + 1);
1095	}	1272	}
1096		1273
1097	#if EV_ASYNC_ENABLE	1274	#if EV_ASYNC_ENABLE
1098	if (gotasync)	1275	if (async_pending)
1099	{	1276	{
1100	int i;	1277	async_pending = 0;
1101	gotasync = 0;
1102		1278
1103	for (i = asynccnt; i--; )	1279	for (i = asynccnt; i--; )
1104	if (asyncs [i]->sent)	1280	if (asyncs [i]->sent)
1105	{	1281	{
1106	asyncs [i]->sent = 0;	1282	asyncs [i]->sent = 0;
…		…
1114		1290
1115	static void	1291	static void
1116	ev_sighandler (int signum)	1292	ev_sighandler (int signum)
1117	{	1293	{
1118	#if EV_MULTIPLICITY	1294	#if EV_MULTIPLICITY
1119	struct ev_loop *loop = &default_loop_struct;	1295	EV_P = signals [signum - 1].loop;
1120	#endif	1296	#endif
1121		1297
1122	#if _WIN32	1298	#if _WIN32
1123	signal (signum, ev_sighandler);	1299	signal (signum, ev_sighandler);
1124	#endif	1300	#endif
1125		1301
1126	signals [signum - 1].gotsig = 1;	1302	signals [signum - 1].pending = 1;
1127	evpipe_write (EV_A_ &gotsig);	1303	evpipe_write (EV_A_ &sig_pending);
1128	}	1304	}
1129		1305
1130	void noinline	1306	void noinline
1131	ev_feed_signal_event (EV_P_ int signum)	1307	ev_feed_signal_event (EV_P_ int signum)
1132	{	1308	{
1133	WL w;	1309	WL w;
1134		1310
		1311	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1312	return;
		1313
		1314	--signum;
		1315
1135	#if EV_MULTIPLICITY	1316	#if EV_MULTIPLICITY
1136	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1317	/* it is permissible to try to feed a signal to the wrong loop */
1137	#endif	1318	/* or, likely more useful, feeding a signal nobody is waiting for */
1138		1319
1139	--signum;	1320	if (expect_false (signals [signum].loop != EV_A))
1140
1141	if (signum < 0 || signum >= signalmax)
1142	return;	1321	return;
		1322	#endif
1143		1323
1144	signals [signum].gotsig = 0;	1324	signals [signum].pending = 0;
1145		1325
1146	for (w = signals [signum].head; w; w = w->next)	1326	for (w = signals [signum].head; w; w = w->next)
1147	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1327	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1148	}	1328	}
1149		1329
		1330	#if EV_USE_SIGNALFD
		1331	static void
		1332	sigfdcb (EV_P_ ev_io *iow, int revents)
		1333	{
		1334	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1335
		1336	for (;;)
		1337	{
		1338	ssize_t res = read (sigfd, si, sizeof (si));
		1339
		1340	/* not ISO-C, as res might be -1, but works with SuS */
		1341	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1342	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1343
		1344	if (res < (ssize_t)sizeof (si))
		1345	break;
		1346	}
		1347	}
		1348	#endif
		1349
1150	/*****************************************************************************/	1350	/*****************************************************************************/
1151		1351
1152	static WL childs [EV_PID_HASHSIZE];	1352	static WL childs [EV_PID_HASHSIZE];
1153		1353
1154	#ifndef _WIN32	1354	#ifndef _WIN32
…		…
1157		1357
1158	#ifndef WIFCONTINUED	1358	#ifndef WIFCONTINUED
1159	# define WIFCONTINUED(status) 0	1359	# define WIFCONTINUED(status) 0
1160	#endif	1360	#endif
1161		1361
1162	void inline_speed	1362	/* handle a single child status event */
		1363	inline_speed void
1163	child_reap (EV_P_ int chain, int pid, int status)	1364	child_reap (EV_P_ int chain, int pid, int status)
1164	{	1365	{
1165	ev_child *w;	1366	ev_child *w;
1166	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1367	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1167		1368
…		…
1180		1381
1181	#ifndef WCONTINUED	1382	#ifndef WCONTINUED
1182	# define WCONTINUED 0	1383	# define WCONTINUED 0
1183	#endif	1384	#endif
1184		1385
		1386	/* called on sigchld etc., calls waitpid */
1185	static void	1387	static void
1186	childcb (EV_P_ ev_signal *sw, int revents)	1388	childcb (EV_P_ ev_signal *sw, int revents)
1187	{	1389	{
1188	int pid, status;	1390	int pid, status;
1189		1391
…		…
1296	ev_backend (EV_P)	1498	ev_backend (EV_P)
1297	{	1499	{
1298	return backend;	1500	return backend;
1299	}	1501	}
1300		1502
		1503	#if EV_MINIMAL < 2
1301	unsigned int	1504	unsigned int
1302	ev_loop_count (EV_P)	1505	ev_loop_count (EV_P)
1303	{	1506	{
1304	return loop_count;	1507	return loop_count;
1305	}	1508	}
1306		1509
		1510	unsigned int
		1511	ev_loop_depth (EV_P)
		1512	{
		1513	return loop_depth;
		1514	}
		1515
1307	void	1516	void
1308	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1517	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1309	{	1518	{
1310	io_blocktime = interval;	1519	io_blocktime = interval;
1311	}	1520	}
…		…
1314	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1523	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1315	{	1524	{
1316	timeout_blocktime = interval;	1525	timeout_blocktime = interval;
1317	}	1526	}
1318		1527
		1528	void
		1529	ev_set_userdata (EV_P_ void *data)
		1530	{
		1531	userdata = data;
		1532	}
		1533
		1534	void *
		1535	ev_userdata (EV_P)
		1536	{
		1537	return userdata;
		1538	}
		1539
		1540	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1541	{
		1542	invoke_cb = invoke_pending_cb;
		1543	}
		1544
		1545	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1546	{
		1547	release_cb = release;
		1548	acquire_cb = acquire;
		1549	}
		1550	#endif
		1551
		1552	/* initialise a loop structure, must be zero-initialised */
1319	static void noinline	1553	static void noinline
1320	loop_init (EV_P_ unsigned int flags)	1554	loop_init (EV_P_ unsigned int flags)
1321	{	1555	{
1322	if (!backend)	1556	if (!backend)
1323	{	1557	{
		1558	#if EV_USE_REALTIME
		1559	if (!have_realtime)
		1560	{
		1561	struct timespec ts;
		1562
		1563	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1564	have_realtime = 1;
		1565	}
		1566	#endif
		1567
1324	#if EV_USE_MONOTONIC	1568	#if EV_USE_MONOTONIC
		1569	if (!have_monotonic)
1325	{	1570	{
1326	struct timespec ts;	1571	struct timespec ts;
		1572
1327	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1573	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1328	have_monotonic = 1;	1574	have_monotonic = 1;
1329	}	1575	}
1330	#endif	1576	#endif
		1577
		1578	/* pid check not overridable via env */
		1579	#ifndef _WIN32
		1580	if (flags & EVFLAG_FORKCHECK)
		1581	curpid = getpid ();
		1582	#endif
		1583
		1584	if (!(flags & EVFLAG_NOENV)
		1585	&& !enable_secure ()
		1586	&& getenv ("LIBEV_FLAGS"))
		1587	flags = atoi (getenv ("LIBEV_FLAGS"));
1331		1588
1332	ev_rt_now = ev_time ();	1589	ev_rt_now = ev_time ();
1333	mn_now = get_clock ();	1590	mn_now = get_clock ();
1334	now_floor = mn_now;	1591	now_floor = mn_now;
1335	rtmn_diff = ev_rt_now - mn_now;	1592	rtmn_diff = ev_rt_now - mn_now;
		1593	#if EV_MINIMAL < 2
		1594	invoke_cb = ev_invoke_pending;
		1595	#endif
1336		1596
1337	io_blocktime = 0.;	1597	io_blocktime = 0.;
1338	timeout_blocktime = 0.;	1598	timeout_blocktime = 0.;
1339	backend = 0;	1599	backend = 0;
1340	backend_fd = -1;	1600	backend_fd = -1;
1341	gotasync = 0;	1601	sig_pending = 0;
		1602	#if EV_ASYNC_ENABLE
		1603	async_pending = 0;
		1604	#endif
1342	#if EV_USE_INOTIFY	1605	#if EV_USE_INOTIFY
1343	fs_fd = -2;	1606	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1344	#endif	1607	#endif
1345		1608	#if EV_USE_SIGNALFD
1346	/* pid check not overridable via env */	1609	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1347	#ifndef _WIN32
1348	if (flags & EVFLAG_FORKCHECK)
1349	curpid = getpid ();
1350	#endif	1610	#endif
1351
1352	if (!(flags & EVFLAG_NOENV)
1353	&& !enable_secure ()
1354	&& getenv ("LIBEV_FLAGS"))
1355	flags = atoi (getenv ("LIBEV_FLAGS"));
1356		1611
1357	if (!(flags & 0x0000ffffU))	1612	if (!(flags & 0x0000ffffU))
1358	flags |= ev_recommended_backends ();	1613	flags |= ev_recommended_backends ();
1359		1614
1360	#if EV_USE_PORT	1615	#if EV_USE_PORT
…		…
1371	#endif	1626	#endif
1372	#if EV_USE_SELECT	1627	#if EV_USE_SELECT
1373	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1628	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1374	#endif	1629	#endif
1375		1630
		1631	ev_prepare_init (&pending_w, pendingcb);
		1632
1376	ev_init (&pipeev, pipecb);	1633	ev_init (&pipe_w, pipecb);
1377	ev_set_priority (&pipeev, EV_MAXPRI);	1634	ev_set_priority (&pipe_w, EV_MAXPRI);
1378	}	1635	}
1379	}	1636	}
1380		1637
		1638	/* free up a loop structure */
1381	static void noinline	1639	static void noinline
1382	loop_destroy (EV_P)	1640	loop_destroy (EV_P)
1383	{	1641	{
1384	int i;	1642	int i;
1385		1643
1386	if (ev_is_active (&pipeev))	1644	if (ev_is_active (&pipe_w))
1387	{	1645	{
1388	ev_ref (EV_A); /* signal watcher */	1646	/*ev_ref (EV_A);*/
1389	ev_io_stop (EV_A_ &pipeev);	1647	/*ev_io_stop (EV_A_ &pipe_w);*/
1390		1648
1391	#if EV_USE_EVENTFD	1649	#if EV_USE_EVENTFD
1392	if (evfd >= 0)	1650	if (evfd >= 0)
1393	close (evfd);	1651	close (evfd);
1394	#endif	1652	#endif
1395		1653
1396	if (evpipe [0] >= 0)	1654	if (evpipe [0] >= 0)
1397	{	1655	{
1398	close (evpipe [0]);	1656	EV_WIN32_CLOSE_FD (evpipe [0]);
1399	close (evpipe [1]);	1657	EV_WIN32_CLOSE_FD (evpipe [1]);
1400	}	1658	}
1401	}	1659	}
		1660
		1661	#if EV_USE_SIGNALFD
		1662	if (ev_is_active (&sigfd_w))
		1663	{
		1664	/*ev_ref (EV_A);*/
		1665	/*ev_io_stop (EV_A_ &sigfd_w);*/
		1666
		1667	close (sigfd);
		1668	}
		1669	#endif
1402		1670
1403	#if EV_USE_INOTIFY	1671	#if EV_USE_INOTIFY
1404	if (fs_fd >= 0)	1672	if (fs_fd >= 0)
1405	close (fs_fd);	1673	close (fs_fd);
1406	#endif	1674	#endif
…		…
1430	#if EV_IDLE_ENABLE	1698	#if EV_IDLE_ENABLE
1431	array_free (idle, [i]);	1699	array_free (idle, [i]);
1432	#endif	1700	#endif
1433	}	1701	}
1434		1702
1435	ev_free (anfds); anfdmax = 0;	1703	ev_free (anfds); anfds = 0; anfdmax = 0;
1436		1704
1437	/* have to use the microsoft-never-gets-it-right macro */	1705	/* have to use the microsoft-never-gets-it-right macro */
		1706	array_free (rfeed, EMPTY);
1438	array_free (fdchange, EMPTY);	1707	array_free (fdchange, EMPTY);
1439	array_free (timer, EMPTY);	1708	array_free (timer, EMPTY);
1440	#if EV_PERIODIC_ENABLE	1709	#if EV_PERIODIC_ENABLE
1441	array_free (periodic, EMPTY);	1710	array_free (periodic, EMPTY);
1442	#endif	1711	#endif
…		…
1451		1720
1452	backend = 0;	1721	backend = 0;
1453	}	1722	}
1454		1723
1455	#if EV_USE_INOTIFY	1724	#if EV_USE_INOTIFY
1456	void inline_size infy_fork (EV_P);	1725	inline_size void infy_fork (EV_P);
1457	#endif	1726	#endif
1458		1727
1459	void inline_size	1728	inline_size void
1460	loop_fork (EV_P)	1729	loop_fork (EV_P)
1461	{	1730	{
1462	#if EV_USE_PORT	1731	#if EV_USE_PORT
1463	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1732	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1464	#endif	1733	#endif
…		…
1470	#endif	1739	#endif
1471	#if EV_USE_INOTIFY	1740	#if EV_USE_INOTIFY
1472	infy_fork (EV_A);	1741	infy_fork (EV_A);
1473	#endif	1742	#endif
1474		1743
1475	if (ev_is_active (&pipeev))	1744	if (ev_is_active (&pipe_w))
1476	{	1745	{
1477	/* this "locks" the handlers against writing to the pipe */	1746	/* this "locks" the handlers against writing to the pipe */
1478	/* while we modify the fd vars */	1747	/* while we modify the fd vars */
1479	gotsig = 1;	1748	sig_pending = 1;
1480	#if EV_ASYNC_ENABLE	1749	#if EV_ASYNC_ENABLE
1481	gotasync = 1;	1750	async_pending = 1;
1482	#endif	1751	#endif
1483		1752
1484	ev_ref (EV_A);	1753	ev_ref (EV_A);
1485	ev_io_stop (EV_A_ &pipeev);	1754	ev_io_stop (EV_A_ &pipe_w);
1486		1755
1487	#if EV_USE_EVENTFD	1756	#if EV_USE_EVENTFD
1488	if (evfd >= 0)	1757	if (evfd >= 0)
1489	close (evfd);	1758	close (evfd);
1490	#endif	1759	#endif
1491		1760
1492	if (evpipe [0] >= 0)	1761	if (evpipe [0] >= 0)
1493	{	1762	{
1494	close (evpipe [0]);	1763	EV_WIN32_CLOSE_FD (evpipe [0]);
1495	close (evpipe [1]);	1764	EV_WIN32_CLOSE_FD (evpipe [1]);
1496	}	1765	}
1497		1766
1498	evpipe_init (EV_A);	1767	evpipe_init (EV_A);
1499	/* now iterate over everything, in case we missed something */	1768	/* now iterate over everything, in case we missed something */
1500	pipecb (EV_A_ &pipeev, EV_READ);	1769	pipecb (EV_A_ &pipe_w, EV_READ);
1501	}	1770	}
1502		1771
1503	postfork = 0;	1772	postfork = 0;
1504	}	1773	}
1505		1774
1506	#if EV_MULTIPLICITY	1775	#if EV_MULTIPLICITY
1507		1776
1508	struct ev_loop *	1777	struct ev_loop *
1509	ev_loop_new (unsigned int flags)	1778	ev_loop_new (unsigned int flags)
1510	{	1779	{
1511	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1780	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1512		1781
1513	memset (loop, 0, sizeof (struct ev_loop));	1782	memset (EV_A, 0, sizeof (struct ev_loop));
1514
1515	loop_init (EV_A_ flags);	1783	loop_init (EV_A_ flags);
1516		1784
1517	if (ev_backend (EV_A))	1785	if (ev_backend (EV_A))
1518	return loop;	1786	return EV_A;
1519		1787
1520	return 0;	1788	return 0;
1521	}	1789	}
1522		1790
1523	void	1791	void
…		…
1530	void	1798	void
1531	ev_loop_fork (EV_P)	1799	ev_loop_fork (EV_P)
1532	{	1800	{
1533	postfork = 1; /* must be in line with ev_default_fork */	1801	postfork = 1; /* must be in line with ev_default_fork */
1534	}	1802	}
		1803	#endif /* multiplicity */
1535		1804
1536	#if EV_VERIFY	1805	#if EV_VERIFY
1537	static void noinline	1806	static void noinline
1538	verify_watcher (EV_P_ W w)	1807	verify_watcher (EV_P_ W w)
1539	{	1808	{
…		…
1567	verify_watcher (EV_A_ ws [cnt]);	1836	verify_watcher (EV_A_ ws [cnt]);
1568	}	1837	}
1569	}	1838	}
1570	#endif	1839	#endif
1571		1840
		1841	#if EV_MINIMAL < 2
1572	void	1842	void
1573	ev_loop_verify (EV_P)	1843	ev_loop_verify (EV_P)
1574	{	1844	{
1575	#if EV_VERIFY	1845	#if EV_VERIFY
1576	int i;	1846	int i;
…		…
1625	assert (checkmax >= checkcnt);	1895	assert (checkmax >= checkcnt);
1626	array_verify (EV_A_ (W *)checks, checkcnt);	1896	array_verify (EV_A_ (W *)checks, checkcnt);
1627		1897
1628	# if 0	1898	# if 0
1629	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1899	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1630	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1900	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1631	# endif
1632	#endif	1901	# endif
		1902	#endif
1633	}	1903	}
1634		1904	#endif
1635	#endif /* multiplicity */
1636		1905
1637	#if EV_MULTIPLICITY	1906	#if EV_MULTIPLICITY
1638	struct ev_loop *	1907	struct ev_loop *
1639	ev_default_loop_init (unsigned int flags)	1908	ev_default_loop_init (unsigned int flags)
1640	#else	1909	#else
…		…
1643	#endif	1912	#endif
1644	{	1913	{
1645	if (!ev_default_loop_ptr)	1914	if (!ev_default_loop_ptr)
1646	{	1915	{
1647	#if EV_MULTIPLICITY	1916	#if EV_MULTIPLICITY
1648	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1917	EV_P = ev_default_loop_ptr = &default_loop_struct;
1649	#else	1918	#else
1650	ev_default_loop_ptr = 1;	1919	ev_default_loop_ptr = 1;
1651	#endif	1920	#endif
1652		1921
1653	loop_init (EV_A_ flags);	1922	loop_init (EV_A_ flags);
…		…
1670		1939
1671	void	1940	void
1672	ev_default_destroy (void)	1941	ev_default_destroy (void)
1673	{	1942	{
1674	#if EV_MULTIPLICITY	1943	#if EV_MULTIPLICITY
1675	struct ev_loop *loop = ev_default_loop_ptr;	1944	EV_P = ev_default_loop_ptr;
1676	#endif	1945	#endif
1677		1946
1678	ev_default_loop_ptr = 0;	1947	ev_default_loop_ptr = 0;
1679		1948
1680	#ifndef _WIN32	1949	#ifndef _WIN32
…		…
1687		1956
1688	void	1957	void
1689	ev_default_fork (void)	1958	ev_default_fork (void)
1690	{	1959	{
1691	#if EV_MULTIPLICITY	1960	#if EV_MULTIPLICITY
1692	struct ev_loop *loop = ev_default_loop_ptr;	1961	EV_P = ev_default_loop_ptr;
1693	#endif	1962	#endif
1694		1963
1695	postfork = 1; /* must be in line with ev_loop_fork */	1964	postfork = 1; /* must be in line with ev_loop_fork */
1696	}	1965	}
1697		1966
…		…
1701	ev_invoke (EV_P_ void *w, int revents)	1970	ev_invoke (EV_P_ void *w, int revents)
1702	{	1971	{
1703	EV_CB_INVOKE ((W)w, revents);	1972	EV_CB_INVOKE ((W)w, revents);
1704	}	1973	}
1705		1974
1706	void inline_speed	1975	unsigned int
1707	call_pending (EV_P)	1976	ev_pending_count (EV_P)
		1977	{
		1978	int pri;
		1979	unsigned int count = 0;
		1980
		1981	for (pri = NUMPRI; pri--; )
		1982	count += pendingcnt [pri];
		1983
		1984	return count;
		1985	}
		1986
		1987	void noinline
		1988	ev_invoke_pending (EV_P)
1708	{	1989	{
1709	int pri;	1990	int pri;
1710		1991
1711	for (pri = NUMPRI; pri--; )	1992	for (pri = NUMPRI; pri--; )
1712	while (pendingcnt [pri])	1993	while (pendingcnt [pri])
1713	{	1994	{
1714	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1995	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1715		1996
1716	if (expect_true (p->w))
1717	{
1718	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	1997	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1998	/* ^ this is no longer true, as pending_w could be here */
1719		1999
1720	p->w->pending = 0;	2000	p->w->pending = 0;
1721	EV_CB_INVOKE (p->w, p->events);	2001	EV_CB_INVOKE (p->w, p->events);
1722	EV_FREQUENT_CHECK;	2002	EV_FREQUENT_CHECK;
1723	}
1724	}	2003	}
1725	}	2004	}
1726		2005
1727	#if EV_IDLE_ENABLE	2006	#if EV_IDLE_ENABLE
1728	void inline_size	2007	/* make idle watchers pending. this handles the "call-idle */
		2008	/* only when higher priorities are idle" logic */
		2009	inline_size void
1729	idle_reify (EV_P)	2010	idle_reify (EV_P)
1730	{	2011	{
1731	if (expect_false (idleall))	2012	if (expect_false (idleall))
1732	{	2013	{
1733	int pri;	2014	int pri;
…		…
1745	}	2026	}
1746	}	2027	}
1747	}	2028	}
1748	#endif	2029	#endif
1749		2030
1750	void inline_size	2031	/* make timers pending */
		2032	inline_size void
1751	timers_reify (EV_P)	2033	timers_reify (EV_P)
1752	{	2034	{
1753	EV_FREQUENT_CHECK;	2035	EV_FREQUENT_CHECK;
1754		2036
1755	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	2037	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1756	{	2038	{
1757	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	2039	do
1758
1759	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1760
1761	/* first reschedule or stop timer */
1762	if (w->repeat)
1763	{	2040	{
		2041	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2042
		2043	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2044
		2045	/* first reschedule or stop timer */
		2046	if (w->repeat)
		2047	{
1764	ev_at (w) += w->repeat;	2048	ev_at (w) += w->repeat;
1765	if (ev_at (w) < mn_now)	2049	if (ev_at (w) < mn_now)
1766	ev_at (w) = mn_now;	2050	ev_at (w) = mn_now;
1767		2051
1768	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));	2052	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1769		2053
1770	ANHE_at_cache (timers [HEAP0]);	2054	ANHE_at_cache (timers [HEAP0]);
1771	downheap (timers, timercnt, HEAP0);	2055	downheap (timers, timercnt, HEAP0);
		2056	}
		2057	else
		2058	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2059
		2060	EV_FREQUENT_CHECK;
		2061	feed_reverse (EV_A_ (W)w);
1772	}	2062	}
1773	else	2063	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1774	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1775		2064
1776	EV_FREQUENT_CHECK;
1777	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	2065	feed_reverse_done (EV_A_ EV_TIMEOUT);
1778	}	2066	}
1779	}	2067	}
1780		2068
1781	#if EV_PERIODIC_ENABLE	2069	#if EV_PERIODIC_ENABLE
1782	void inline_size	2070	/* make periodics pending */
		2071	inline_size void
1783	periodics_reify (EV_P)	2072	periodics_reify (EV_P)
1784	{	2073	{
1785	EV_FREQUENT_CHECK;	2074	EV_FREQUENT_CHECK;
1786		2075
1787	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2076	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1788	{	2077	{
1789	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2078	int feed_count = 0;
1790		2079
1791	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2080	do
1792
1793	/* first reschedule or stop timer */
1794	if (w->reschedule_cb)
1795	{	2081	{
		2082	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2083
		2084	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2085
		2086	/* first reschedule or stop timer */
		2087	if (w->reschedule_cb)
		2088	{
1796	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2089	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1797		2090
1798	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	2091	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1799		2092
1800	ANHE_at_cache (periodics [HEAP0]);	2093	ANHE_at_cache (periodics [HEAP0]);
1801	downheap (periodics, periodiccnt, HEAP0);	2094	downheap (periodics, periodiccnt, HEAP0);
		2095	}
		2096	else if (w->interval)
		2097	{
		2098	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2099	/* if next trigger time is not sufficiently in the future, put it there */
		2100	/* this might happen because of floating point inexactness */
		2101	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2102	{
		2103	ev_at (w) += w->interval;
		2104
		2105	/* if interval is unreasonably low we might still have a time in the past */
		2106	/* so correct this. this will make the periodic very inexact, but the user */
		2107	/* has effectively asked to get triggered more often than possible */
		2108	if (ev_at (w) < ev_rt_now)
		2109	ev_at (w) = ev_rt_now;
		2110	}
		2111
		2112	ANHE_at_cache (periodics [HEAP0]);
		2113	downheap (periodics, periodiccnt, HEAP0);
		2114	}
		2115	else
		2116	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2117
		2118	EV_FREQUENT_CHECK;
		2119	feed_reverse (EV_A_ (W)w);
1802	}	2120	}
1803	else if (w->interval)	2121	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1804	{
1805	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1806	/* if next trigger time is not sufficiently in the future, put it there */
1807	/* this might happen because of floating point inexactness */
1808	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1809	{
1810	ev_at (w) += w->interval;
1811		2122
1812	/* if interval is unreasonably low we might still have a time in the past */
1813	/* so correct this. this will make the periodic very inexact, but the user */
1814	/* has effectively asked to get triggered more often than possible */
1815	if (ev_at (w) < ev_rt_now)
1816	ev_at (w) = ev_rt_now;
1817	}
1818
1819	ANHE_at_cache (periodics [HEAP0]);
1820	downheap (periodics, periodiccnt, HEAP0);
1821	}
1822	else
1823	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1824
1825	EV_FREQUENT_CHECK;
1826	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	2123	feed_reverse_done (EV_A_ EV_PERIODIC);
1827	}	2124	}
1828	}	2125	}
1829		2126
		2127	/* simply recalculate all periodics */
		2128	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1830	static void noinline	2129	static void noinline
1831	periodics_reschedule (EV_P)	2130	periodics_reschedule (EV_P)
1832	{	2131	{
1833	int i;	2132	int i;
1834		2133
…		…
1847		2146
1848	reheap (periodics, periodiccnt);	2147	reheap (periodics, periodiccnt);
1849	}	2148	}
1850	#endif	2149	#endif
1851		2150
1852	void inline_speed	2151	/* adjust all timers by a given offset */
		2152	static void noinline
		2153	timers_reschedule (EV_P_ ev_tstamp adjust)
		2154	{
		2155	int i;
		2156
		2157	for (i = 0; i < timercnt; ++i)
		2158	{
		2159	ANHE *he = timers + i + HEAP0;
		2160	ANHE_w (*he)->at += adjust;
		2161	ANHE_at_cache (*he);
		2162	}
		2163	}
		2164
		2165	/* fetch new monotonic and realtime times from the kernel */
		2166	/* also detetc if there was a timejump, and act accordingly */
		2167	inline_speed void
1853	time_update (EV_P_ ev_tstamp max_block)	2168	time_update (EV_P_ ev_tstamp max_block)
1854	{	2169	{
1855	int i;
1856
1857	#if EV_USE_MONOTONIC	2170	#if EV_USE_MONOTONIC
1858	if (expect_true (have_monotonic))	2171	if (expect_true (have_monotonic))
1859	{	2172	{
		2173	int i;
1860	ev_tstamp odiff = rtmn_diff;	2174	ev_tstamp odiff = rtmn_diff;
1861		2175
1862	mn_now = get_clock ();	2176	mn_now = get_clock ();
1863		2177
1864	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2178	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1890	ev_rt_now = ev_time ();	2204	ev_rt_now = ev_time ();
1891	mn_now = get_clock ();	2205	mn_now = get_clock ();
1892	now_floor = mn_now;	2206	now_floor = mn_now;
1893	}	2207	}
1894		2208
		2209	/* no timer adjustment, as the monotonic clock doesn't jump */
		2210	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1895	# if EV_PERIODIC_ENABLE	2211	# if EV_PERIODIC_ENABLE
1896	periodics_reschedule (EV_A);	2212	periodics_reschedule (EV_A);
1897	# endif	2213	# endif
1898	/* no timer adjustment, as the monotonic clock doesn't jump */
1899	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1900	}	2214	}
1901	else	2215	else
1902	#endif	2216	#endif
1903	{	2217	{
1904	ev_rt_now = ev_time ();	2218	ev_rt_now = ev_time ();
1905		2219
1906	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2220	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1907	{	2221	{
		2222	/* adjust timers. this is easy, as the offset is the same for all of them */
		2223	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1908	#if EV_PERIODIC_ENABLE	2224	#if EV_PERIODIC_ENABLE
1909	periodics_reschedule (EV_A);	2225	periodics_reschedule (EV_A);
1910	#endif	2226	#endif
1911	/* adjust timers. this is easy, as the offset is the same for all of them */
1912	for (i = 0; i < timercnt; ++i)
1913	{
1914	ANHE *he = timers + i + HEAP0;
1915	ANHE_w (*he)->at += ev_rt_now - mn_now;
1916	ANHE_at_cache (*he);
1917	}
1918	}	2227	}
1919		2228
1920	mn_now = ev_rt_now;	2229	mn_now = ev_rt_now;
1921	}	2230	}
1922	}	2231	}
1923		2232
1924	void	2233	void
1925	ev_ref (EV_P)
1926	{
1927	++activecnt;
1928	}
1929
1930	void
1931	ev_unref (EV_P)
1932	{
1933	--activecnt;
1934	}
1935
1936	void
1937	ev_now_update (EV_P)
1938	{
1939	time_update (EV_A_ 1e100);
1940	}
1941
1942	static int loop_done;
1943
1944	void
1945	ev_loop (EV_P_ int flags)	2234	ev_loop (EV_P_ int flags)
1946	{	2235	{
		2236	#if EV_MINIMAL < 2
		2237	++loop_depth;
		2238	#endif
		2239
		2240	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2241
1947	loop_done = EVUNLOOP_CANCEL;	2242	loop_done = EVUNLOOP_CANCEL;
1948		2243
1949	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2244	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1950		2245
1951	do	2246	do
1952	{	2247	{
1953	#if EV_VERIFY >= 2	2248	#if EV_VERIFY >= 2
1954	ev_loop_verify (EV_A);	2249	ev_loop_verify (EV_A);
…		…
1967	/* we might have forked, so queue fork handlers */	2262	/* we might have forked, so queue fork handlers */
1968	if (expect_false (postfork))	2263	if (expect_false (postfork))
1969	if (forkcnt)	2264	if (forkcnt)
1970	{	2265	{
1971	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2266	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1972	call_pending (EV_A);	2267	EV_INVOKE_PENDING;
1973	}	2268	}
1974	#endif	2269	#endif
1975		2270
1976	/* queue prepare watchers (and execute them) */	2271	/* queue prepare watchers (and execute them) */
1977	if (expect_false (preparecnt))	2272	if (expect_false (preparecnt))
1978	{	2273	{
1979	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2274	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1980	call_pending (EV_A);	2275	EV_INVOKE_PENDING;
1981	}	2276	}
1982		2277
1983	if (expect_false (!activecnt))	2278	if (expect_false (loop_done))
1984	break;	2279	break;
1985		2280
1986	/* we might have forked, so reify kernel state if necessary */	2281	/* we might have forked, so reify kernel state if necessary */
1987	if (expect_false (postfork))	2282	if (expect_false (postfork))
1988	loop_fork (EV_A);	2283	loop_fork (EV_A);
…		…
1995	ev_tstamp waittime = 0.;	2290	ev_tstamp waittime = 0.;
1996	ev_tstamp sleeptime = 0.;	2291	ev_tstamp sleeptime = 0.;
1997		2292
1998	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2293	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1999	{	2294	{
		2295	/* remember old timestamp for io_blocktime calculation */
		2296	ev_tstamp prev_mn_now = mn_now;
		2297
2000	/* update time to cancel out callback processing overhead */	2298	/* update time to cancel out callback processing overhead */
2001	time_update (EV_A_ 1e100);	2299	time_update (EV_A_ 1e100);
2002		2300
2003	waittime = MAX_BLOCKTIME;	2301	waittime = MAX_BLOCKTIME;
2004		2302
…		…
2014	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2312	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2015	if (waittime > to) waittime = to;	2313	if (waittime > to) waittime = to;
2016	}	2314	}
2017	#endif	2315	#endif
2018		2316
		2317	/* don't let timeouts decrease the waittime below timeout_blocktime */
2019	if (expect_false (waittime < timeout_blocktime))	2318	if (expect_false (waittime < timeout_blocktime))
2020	waittime = timeout_blocktime;	2319	waittime = timeout_blocktime;
2021		2320
2022	sleeptime = waittime - backend_fudge;	2321	/* extra check because io_blocktime is commonly 0 */
2023
2024	if (expect_true (sleeptime > io_blocktime))	2322	if (expect_false (io_blocktime))
2025	sleeptime = io_blocktime;
2026
2027	if (sleeptime)
2028	{	2323	{
		2324	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2325
		2326	if (sleeptime > waittime - backend_fudge)
		2327	sleeptime = waittime - backend_fudge;
		2328
		2329	if (expect_true (sleeptime > 0.))
		2330	{
2029	ev_sleep (sleeptime);	2331	ev_sleep (sleeptime);
2030	waittime -= sleeptime;	2332	waittime -= sleeptime;
		2333	}
2031	}	2334	}
2032	}	2335	}
2033		2336
		2337	#if EV_MINIMAL < 2
2034	++loop_count;	2338	++loop_count;
		2339	#endif
		2340	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2035	backend_poll (EV_A_ waittime);	2341	backend_poll (EV_A_ waittime);
		2342	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2036		2343
2037	/* update ev_rt_now, do magic */	2344	/* update ev_rt_now, do magic */
2038	time_update (EV_A_ waittime + sleeptime);	2345	time_update (EV_A_ waittime + sleeptime);
2039	}	2346	}
2040		2347
…		…
2051		2358
2052	/* queue check watchers, to be executed first */	2359	/* queue check watchers, to be executed first */
2053	if (expect_false (checkcnt))	2360	if (expect_false (checkcnt))
2054	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2361	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2055		2362
2056	call_pending (EV_A);	2363	EV_INVOKE_PENDING;
2057	}	2364	}
2058	while (expect_true (	2365	while (expect_true (
2059	activecnt	2366	activecnt
2060	&& !loop_done	2367	&& !loop_done
2061	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2368	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2062	));	2369	));
2063		2370
2064	if (loop_done == EVUNLOOP_ONE)	2371	if (loop_done == EVUNLOOP_ONE)
2065	loop_done = EVUNLOOP_CANCEL;	2372	loop_done = EVUNLOOP_CANCEL;
		2373
		2374	#if EV_MINIMAL < 2
		2375	--loop_depth;
		2376	#endif
2066	}	2377	}
2067		2378
2068	void	2379	void
2069	ev_unloop (EV_P_ int how)	2380	ev_unloop (EV_P_ int how)
2070	{	2381	{
2071	loop_done = how;	2382	loop_done = how;
2072	}	2383	}
2073		2384
		2385	void
		2386	ev_ref (EV_P)
		2387	{
		2388	++activecnt;
		2389	}
		2390
		2391	void
		2392	ev_unref (EV_P)
		2393	{
		2394	--activecnt;
		2395	}
		2396
		2397	void
		2398	ev_now_update (EV_P)
		2399	{
		2400	time_update (EV_A_ 1e100);
		2401	}
		2402
		2403	void
		2404	ev_suspend (EV_P)
		2405	{
		2406	ev_now_update (EV_A);
		2407	}
		2408
		2409	void
		2410	ev_resume (EV_P)
		2411	{
		2412	ev_tstamp mn_prev = mn_now;
		2413
		2414	ev_now_update (EV_A);
		2415	timers_reschedule (EV_A_ mn_now - mn_prev);
		2416	#if EV_PERIODIC_ENABLE
		2417	/* TODO: really do this? */
		2418	periodics_reschedule (EV_A);
		2419	#endif
		2420	}
		2421
2074	/*****************************************************************************/	2422	/*****************************************************************************/
		2423	/* singly-linked list management, used when the expected list length is short */
2075		2424
2076	void inline_size	2425	inline_size void
2077	wlist_add (WL *head, WL elem)	2426	wlist_add (WL *head, WL elem)
2078	{	2427	{
2079	elem->next = *head;	2428	elem->next = *head;
2080	*head = elem;	2429	*head = elem;
2081	}	2430	}
2082		2431
2083	void inline_size	2432	inline_size void
2084	wlist_del (WL *head, WL elem)	2433	wlist_del (WL *head, WL elem)
2085	{	2434	{
2086	while (*head)	2435	while (*head)
2087	{	2436	{
2088	if (*head == elem)	2437	if (expect_true (*head == elem))
2089	{	2438	{
2090	*head = elem->next;	2439	*head = elem->next;
2091	return;	2440	break;
2092	}	2441	}
2093		2442
2094	head = &(*head)->next;	2443	head = &(*head)->next;
2095	}	2444	}
2096	}	2445	}
2097		2446
2098	void inline_speed	2447	/* internal, faster, version of ev_clear_pending */
		2448	inline_speed void
2099	clear_pending (EV_P_ W w)	2449	clear_pending (EV_P_ W w)
2100	{	2450	{
2101	if (w->pending)	2451	if (w->pending)
2102	{	2452	{
2103	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2453	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2104	w->pending = 0;	2454	w->pending = 0;
2105	}	2455	}
2106	}	2456	}
2107		2457
2108	int	2458	int
…		…
2112	int pending = w_->pending;	2462	int pending = w_->pending;
2113		2463
2114	if (expect_true (pending))	2464	if (expect_true (pending))
2115	{	2465	{
2116	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2466	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2467	p->w = (W)&pending_w;
2117	w_->pending = 0;	2468	w_->pending = 0;
2118	p->w = 0;
2119	return p->events;	2469	return p->events;
2120	}	2470	}
2121	else	2471	else
2122	return 0;	2472	return 0;
2123	}	2473	}
2124		2474
2125	void inline_size	2475	inline_size void
2126	pri_adjust (EV_P_ W w)	2476	pri_adjust (EV_P_ W w)
2127	{	2477	{
2128	int pri = w->priority;	2478	int pri = ev_priority (w);
2129	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2479	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2130	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2480	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2131	w->priority = pri;	2481	ev_set_priority (w, pri);
2132	}	2482	}
2133		2483
2134	void inline_speed	2484	inline_speed void
2135	ev_start (EV_P_ W w, int active)	2485	ev_start (EV_P_ W w, int active)
2136	{	2486	{
2137	pri_adjust (EV_A_ w);	2487	pri_adjust (EV_A_ w);
2138	w->active = active;	2488	w->active = active;
2139	ev_ref (EV_A);	2489	ev_ref (EV_A);
2140	}	2490	}
2141		2491
2142	void inline_size	2492	inline_size void
2143	ev_stop (EV_P_ W w)	2493	ev_stop (EV_P_ W w)
2144	{	2494	{
2145	ev_unref (EV_A);	2495	ev_unref (EV_A);
2146	w->active = 0;	2496	w->active = 0;
2147	}	2497	}
…		…
2155		2505
2156	if (expect_false (ev_is_active (w)))	2506	if (expect_false (ev_is_active (w)))
2157	return;	2507	return;
2158		2508
2159	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2509	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2160	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE))));	2510	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2161		2511
2162	EV_FREQUENT_CHECK;	2512	EV_FREQUENT_CHECK;
2163		2513
2164	ev_start (EV_A_ (W)w, 1);	2514	ev_start (EV_A_ (W)w, 1);
2165	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2515	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2166	wlist_add (&anfds[fd].head, (WL)w);	2516	wlist_add (&anfds[fd].head, (WL)w);
2167		2517
2168	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2518	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2169	w->events &= ~EV_IOFDSET;	2519	w->events &= ~EV__IOFDSET;
2170		2520
2171	EV_FREQUENT_CHECK;	2521	EV_FREQUENT_CHECK;
2172	}	2522	}
2173		2523
2174	void noinline	2524	void noinline
…		…
2267	}	2617	}
2268		2618
2269	EV_FREQUENT_CHECK;	2619	EV_FREQUENT_CHECK;
2270	}	2620	}
2271		2621
		2622	ev_tstamp
		2623	ev_timer_remaining (EV_P_ ev_timer *w)
		2624	{
		2625	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2626	}
		2627
2272	#if EV_PERIODIC_ENABLE	2628	#if EV_PERIODIC_ENABLE
2273	void noinline	2629	void noinline
2274	ev_periodic_start (EV_P_ ev_periodic *w)	2630	ev_periodic_start (EV_P_ ev_periodic *w)
2275	{	2631	{
2276	if (expect_false (ev_is_active (w)))	2632	if (expect_false (ev_is_active (w)))
…		…
2343	#endif	2699	#endif
2344		2700
2345	void noinline	2701	void noinline
2346	ev_signal_start (EV_P_ ev_signal *w)	2702	ev_signal_start (EV_P_ ev_signal *w)
2347	{	2703	{
2348	#if EV_MULTIPLICITY
2349	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2350	#endif
2351	if (expect_false (ev_is_active (w)))	2704	if (expect_false (ev_is_active (w)))
2352	return;	2705	return;
2353		2706
2354	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2707	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2355		2708
2356	evpipe_init (EV_A);	2709	#if EV_MULTIPLICITY
		2710	assert (("libev: a signal must not be attached to two different loops",
		2711	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2357		2712
2358	EV_FREQUENT_CHECK;	2713	signals [w->signum - 1].loop = EV_A;
		2714	#endif
2359		2715
		2716	EV_FREQUENT_CHECK;
		2717
		2718	#if EV_USE_SIGNALFD
		2719	if (sigfd == -2)
2360	{	2720	{
2361	#ifndef _WIN32	2721	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2362	sigset_t full, prev;	2722	if (sigfd < 0 && errno == EINVAL)
2363	sigfillset (&full);	2723	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2364	sigprocmask (SIG_SETMASK, &full, &prev);
2365	#endif
2366		2724
2367	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2725	if (sigfd >= 0)
		2726	{
		2727	fd_intern (sigfd); /* doing it twice will not hurt */
2368		2728
2369	#ifndef _WIN32	2729	sigemptyset (&sigfd_set);
2370	sigprocmask (SIG_SETMASK, &prev, 0);	2730
2371	#endif	2731	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2732	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2733	ev_io_start (EV_A_ &sigfd_w);
		2734	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2735	}
2372	}	2736	}
		2737
		2738	if (sigfd >= 0)
		2739	{
		2740	/* TODO: check .head */
		2741	sigaddset (&sigfd_set, w->signum);
		2742	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2743
		2744	signalfd (sigfd, &sigfd_set, 0);
		2745	}
		2746	#endif
2373		2747
2374	ev_start (EV_A_ (W)w, 1);	2748	ev_start (EV_A_ (W)w, 1);
2375	wlist_add (&signals [w->signum - 1].head, (WL)w);	2749	wlist_add (&signals [w->signum - 1].head, (WL)w);
2376		2750
2377	if (!((WL)w)->next)	2751	if (!((WL)w)->next)
		2752	# if EV_USE_SIGNALFD
		2753	if (sigfd < 0) /*TODO*/
		2754	# endif
2378	{	2755	{
2379	#if _WIN32	2756	# if _WIN32
2380	signal (w->signum, ev_sighandler);	2757	signal (w->signum, ev_sighandler);
2381	#else	2758	# else
2382	struct sigaction sa;	2759	struct sigaction sa;
		2760
		2761	evpipe_init (EV_A);
		2762
2383	sa.sa_handler = ev_sighandler;	2763	sa.sa_handler = ev_sighandler;
2384	sigfillset (&sa.sa_mask);	2764	sigfillset (&sa.sa_mask);
2385	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2765	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2386	sigaction (w->signum, &sa, 0);	2766	sigaction (w->signum, &sa, 0);
		2767
		2768	sigemptyset (&sa.sa_mask);
		2769	sigaddset (&sa.sa_mask, w->signum);
		2770	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2387	#endif	2771	#endif
2388	}	2772	}
2389		2773
2390	EV_FREQUENT_CHECK;	2774	EV_FREQUENT_CHECK;
2391	}	2775	}
2392		2776
2393	void noinline	2777	void noinline
…		…
2401		2785
2402	wlist_del (&signals [w->signum - 1].head, (WL)w);	2786	wlist_del (&signals [w->signum - 1].head, (WL)w);
2403	ev_stop (EV_A_ (W)w);	2787	ev_stop (EV_A_ (W)w);
2404		2788
2405	if (!signals [w->signum - 1].head)	2789	if (!signals [w->signum - 1].head)
		2790	{
		2791	#if EV_MULTIPLICITY
		2792	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2793	#endif
		2794	#if EV_USE_SIGNALFD
		2795	if (sigfd >= 0)
		2796	{
		2797	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2798	sigdelset (&sigfd_set, w->signum);
		2799	signalfd (sigfd, &sigfd_set, 0);
		2800	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2801	/*TODO: maybe unblock signal? */
		2802	}
		2803	else
		2804	#endif
2406	signal (w->signum, SIG_DFL);	2805	signal (w->signum, SIG_DFL);
		2806	}
2407		2807
2408	EV_FREQUENT_CHECK;	2808	EV_FREQUENT_CHECK;
2409	}	2809	}
2410		2810
2411	void	2811	void
…		…
2491	}	2891	}
2492	}	2892	}
2493		2893
2494	if (w->wd >= 0)	2894	if (w->wd >= 0)
2495	{	2895	{
		2896	struct statfs sfs;
		2897
2496	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2898	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2497		2899
2498	/* now local changes will be tracked by inotify, but remote changes won't */	2900	/* now local changes will be tracked by inotify, but remote changes won't */
2499	/* unless the filesystem it known to be local, we therefore still poll */	2901	/* unless the filesystem it known to be local, we therefore still poll */
2500	/* also do poll on <2.6.25, but with normal frequency */	2902	/* also do poll on <2.6.25, but with normal frequency */
2501	struct statfs sfs;
2502		2903
2503	if (fs_2625 && !statfs (w->path, &sfs))	2904	if (fs_2625 && !statfs (w->path, &sfs))
2504	if (sfs.f_type == 0x1373 /* devfs */	2905	if (sfs.f_type == 0x1373 /* devfs */
2505	|| sfs.f_type == 0xEF53 /* ext2/3 */	2906	|| sfs.f_type == 0xEF53 /* ext2/3 */
2506	|| sfs.f_type == 0x3153464a /* jfs */	2907	|| sfs.f_type == 0x3153464a /* jfs */
…		…
2572		2973
2573	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2974	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2574	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2975	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2575	}	2976	}
2576		2977
2577	void inline_size	2978	inline_size void
2578	check_2625 (EV_P)	2979	check_2625 (EV_P)
2579	{	2980	{
2580	/* kernels < 2.6.25 are borked	2981	/* kernels < 2.6.25 are borked
2581	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	2982	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2582	*/	2983	*/
…		…
2595	return;	2996	return;
2596		2997
2597	fs_2625 = 1;	2998	fs_2625 = 1;
2598	}	2999	}
2599		3000
2600	void inline_size	3001	inline_size int
		3002	infy_newfd (void)
		3003	{
		3004	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3005	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3006	if (fd >= 0)
		3007	return fd;
		3008	#endif
		3009	return inotify_init ();
		3010	}
		3011
		3012	inline_size void
2601	infy_init (EV_P)	3013	infy_init (EV_P)
2602	{	3014	{
2603	if (fs_fd != -2)	3015	if (fs_fd != -2)
2604	return;	3016	return;
2605		3017
2606	fs_fd = -1;	3018	fs_fd = -1;
2607		3019
2608	check_2625 (EV_A);	3020	check_2625 (EV_A);
2609		3021
2610	fs_fd = inotify_init ();	3022	fs_fd = infy_newfd ();
2611		3023
2612	if (fs_fd >= 0)	3024	if (fs_fd >= 0)
2613	{	3025	{
		3026	fd_intern (fs_fd);
2614	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3027	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2615	ev_set_priority (&fs_w, EV_MAXPRI);	3028	ev_set_priority (&fs_w, EV_MAXPRI);
2616	ev_io_start (EV_A_ &fs_w);	3029	ev_io_start (EV_A_ &fs_w);
2617	}	3030	}
2618	}	3031	}
2619		3032
2620	void inline_size	3033	inline_size void
2621	infy_fork (EV_P)	3034	infy_fork (EV_P)
2622	{	3035	{
2623	int slot;	3036	int slot;
2624		3037
2625	if (fs_fd < 0)	3038	if (fs_fd < 0)
2626	return;	3039	return;
2627		3040
		3041	ev_io_stop (EV_A_ &fs_w);
2628	close (fs_fd);	3042	close (fs_fd);
2629	fs_fd = inotify_init ();	3043	fs_fd = infy_newfd ();
		3044
		3045	if (fs_fd >= 0)
		3046	{
		3047	fd_intern (fs_fd);
		3048	ev_io_set (&fs_w, fs_fd, EV_READ);
		3049	ev_io_start (EV_A_ &fs_w);
		3050	}
2630		3051
2631	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3052	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2632	{	3053	{
2633	WL w_ = fs_hash [slot].head;	3054	WL w_ = fs_hash [slot].head;
2634	fs_hash [slot].head = 0;	3055	fs_hash [slot].head = 0;
…		…
2891	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3312	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2892	{	3313	{
2893	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3314	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2894		3315
2895	{	3316	{
2896	struct ev_loop *loop = w->other;	3317	EV_P = w->other;
2897		3318
2898	while (fdchangecnt)	3319	while (fdchangecnt)
2899	{	3320	{
2900	fd_reify (EV_A);	3321	fd_reify (EV_A);
2901	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3322	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2909	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3330	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2910		3331
2911	ev_embed_stop (EV_A_ w);	3332	ev_embed_stop (EV_A_ w);
2912		3333
2913	{	3334	{
2914	struct ev_loop *loop = w->other;	3335	EV_P = w->other;
2915		3336
2916	ev_loop_fork (EV_A);	3337	ev_loop_fork (EV_A);
2917	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3338	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2918	}	3339	}
2919		3340
…		…
2933	{	3354	{
2934	if (expect_false (ev_is_active (w)))	3355	if (expect_false (ev_is_active (w)))
2935	return;	3356	return;
2936		3357
2937	{	3358	{
2938	struct ev_loop *loop = w->other;	3359	EV_P = w->other;
2939	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3360	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2940	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3361	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2941	}	3362	}
2942		3363
2943	EV_FREQUENT_CHECK;	3364	EV_FREQUENT_CHECK;
…		…
3055		3476
3056	void	3477	void
3057	ev_async_send (EV_P_ ev_async *w)	3478	ev_async_send (EV_P_ ev_async *w)
3058	{	3479	{
3059	w->sent = 1;	3480	w->sent = 1;
3060	evpipe_write (EV_A_ &gotasync);	3481	evpipe_write (EV_A_ &async_pending);
3061	}	3482	}
3062	#endif	3483	#endif
3063		3484
3064	/*****************************************************************************/	3485	/*****************************************************************************/
3065		3486
…		…
3127	ev_timer_set (&once->to, timeout, 0.);	3548	ev_timer_set (&once->to, timeout, 0.);
3128	ev_timer_start (EV_A_ &once->to);	3549	ev_timer_start (EV_A_ &once->to);
3129	}	3550	}
3130	}	3551	}
3131		3552
		3553	/*****************************************************************************/
		3554
		3555	#if EV_WALK_ENABLE
		3556	void
		3557	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3558	{
		3559	int i, j;
		3560	ev_watcher_list *wl, *wn;
		3561
		3562	if (types & (EV_IO | EV_EMBED))
		3563	for (i = 0; i < anfdmax; ++i)
		3564	for (wl = anfds [i].head; wl; )
		3565	{
		3566	wn = wl->next;
		3567
		3568	#if EV_EMBED_ENABLE
		3569	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3570	{
		3571	if (types & EV_EMBED)
		3572	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3573	}
		3574	else
		3575	#endif
		3576	#if EV_USE_INOTIFY
		3577	if (ev_cb ((ev_io *)wl) == infy_cb)
		3578	;
		3579	else
		3580	#endif
		3581	if ((ev_io *)wl != &pipe_w)
		3582	if (types & EV_IO)
		3583	cb (EV_A_ EV_IO, wl);
		3584
		3585	wl = wn;
		3586	}
		3587
		3588	if (types & (EV_TIMER | EV_STAT))
		3589	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3590	#if EV_STAT_ENABLE
		3591	/*TODO: timer is not always active*/
		3592	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3593	{
		3594	if (types & EV_STAT)
		3595	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3596	}
		3597	else
		3598	#endif
		3599	if (types & EV_TIMER)
		3600	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3601
		3602	#if EV_PERIODIC_ENABLE
		3603	if (types & EV_PERIODIC)
		3604	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3605	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3606	#endif
		3607
		3608	#if EV_IDLE_ENABLE
		3609	if (types & EV_IDLE)
		3610	for (j = NUMPRI; i--; )
		3611	for (i = idlecnt [j]; i--; )
		3612	cb (EV_A_ EV_IDLE, idles [j][i]);
		3613	#endif
		3614
		3615	#if EV_FORK_ENABLE
		3616	if (types & EV_FORK)
		3617	for (i = forkcnt; i--; )
		3618	if (ev_cb (forks [i]) != embed_fork_cb)
		3619	cb (EV_A_ EV_FORK, forks [i]);
		3620	#endif
		3621
		3622	#if EV_ASYNC_ENABLE
		3623	if (types & EV_ASYNC)
		3624	for (i = asynccnt; i--; )
		3625	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3626	#endif
		3627
		3628	if (types & EV_PREPARE)
		3629	for (i = preparecnt; i--; )
		3630	#if EV_EMBED_ENABLE
		3631	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3632	#endif
		3633	cb (EV_A_ EV_PREPARE, prepares [i]);
		3634
		3635	if (types & EV_CHECK)
		3636	for (i = checkcnt; i--; )
		3637	cb (EV_A_ EV_CHECK, checks [i]);
		3638
		3639	if (types & EV_SIGNAL)
		3640	for (i = 0; i < EV_NSIG - 1; ++i)
		3641	for (wl = signals [i].head; wl; )
		3642	{
		3643	wn = wl->next;
		3644	cb (EV_A_ EV_SIGNAL, wl);
		3645	wl = wn;
		3646	}
		3647
		3648	if (types & EV_CHILD)
		3649	for (i = EV_PID_HASHSIZE; i--; )
		3650	for (wl = childs [i]; wl; )
		3651	{
		3652	wn = wl->next;
		3653	cb (EV_A_ EV_CHILD, wl);
		3654	wl = wn;
		3655	}
		3656	/* EV_STAT 0x00001000 /* stat data changed */
		3657	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3658	}
		3659	#endif
		3660
3132	#if EV_MULTIPLICITY	3661	#if EV_MULTIPLICITY
3133	#include "ev_wrap.h"	3662	#include "ev_wrap.h"
3134	#endif	3663	#endif
3135		3664
3136	#ifdef __cplusplus	3665	#ifdef __cplusplus

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