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Comparing libev/ev.c (file contents):
Revision 1.280 by root, Sat Mar 14 04:45:39 2009 UTC vs.
Revision 1.317 by root, Sat Nov 14 00:15:21 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
…		…
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
…		…
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;
…		…
407		500
408	#if EV_USE_MONOTONIC	501	#if EV_USE_MONOTONIC
409	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? */
410	#endif	503	#endif
411		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)
		513	#endif
		514
412	#ifdef _WIN32	515	#ifdef _WIN32
413	# include "ev_win32.c"	516	# include "ev_win32.c"
414	#endif	517	#endif
415		518
416	/*****************************************************************************/	519	/*****************************************************************************/
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	581	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	582	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		583
481	/*****************************************************************************/	584	/*****************************************************************************/
482		585
		586	/* set in reify when reification needed */
		587	#define EV_ANFD_REIFY 1
		588
		589	/* file descriptor info structure */
483	typedef struct	590	typedef struct
484	{	591	{
485	WL head;	592	WL head;
486	unsigned char events;	593	unsigned char events; /* the events watched for */
487	unsigned char reify;	594	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
488	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 */
489	unsigned char unused;	596	unsigned char unused;
490	#if EV_USE_EPOLL	597	#if EV_USE_EPOLL
491	unsigned int egen; /* generation counter to counter epoll bugs */	598	unsigned int egen; /* generation counter to counter epoll bugs */
492	#endif	599	#endif
493	#if EV_SELECT_IS_WINSOCKET	600	#if EV_SELECT_IS_WINSOCKET
494	SOCKET handle;	601	SOCKET handle;
495	#endif	602	#endif
496	} ANFD;	603	} ANFD;
497		604
		605	/* stores the pending event set for a given watcher */
498	typedef struct	606	typedef struct
499	{	607	{
500	W w;	608	W w;
501	int events;	609	int events; /* the pending event set for the given watcher */
502	} ANPENDING;	610	} ANPENDING;
503		611
504	#if EV_USE_INOTIFY	612	#if EV_USE_INOTIFY
505	/* hash table entry per inotify-id */	613	/* hash table entry per inotify-id */
506	typedef struct	614	typedef struct
…		…
509	} ANFS;	617	} ANFS;
510	#endif	618	#endif
511		619
512	/* Heap Entry */	620	/* Heap Entry */
513	#if EV_HEAP_CACHE_AT	621	#if EV_HEAP_CACHE_AT
		622	/* a heap element */
514	typedef struct {	623	typedef struct {
515	ev_tstamp at;	624	ev_tstamp at;
516	WT w;	625	WT w;
517	} ANHE;	626	} ANHE;
518		627
519	#define ANHE_w(he) (he).w /* access watcher, read-write */	628	#define ANHE_w(he) (he).w /* access watcher, read-write */
520	#define ANHE_at(he) (he).at /* access cached at, read-only */	629	#define ANHE_at(he) (he).at /* access cached at, read-only */
521	#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 */
522	#else	631	#else
		632	/* a heap element */
523	typedef WT ANHE;	633	typedef WT ANHE;
524		634
525	#define ANHE_w(he) (he)	635	#define ANHE_w(he) (he)
526	#define ANHE_at(he) (he)->at	636	#define ANHE_at(he) (he)->at
527	#define ANHE_at_cache(he)	637	#define ANHE_at_cache(he)
…		…
551		661
552	static int ev_default_loop_ptr;	662	static int ev_default_loop_ptr;
553		663
554	#endif	664	#endif
555		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
556	/*****************************************************************************/	678	/*****************************************************************************/
557		679
		680	#ifndef EV_HAVE_EV_TIME
558	ev_tstamp	681	ev_tstamp
559	ev_time (void)	682	ev_time (void)
560	{	683	{
561	#if EV_USE_REALTIME	684	#if EV_USE_REALTIME
562	if (expect_true (have_realtime))	685	if (expect_true (have_realtime))
…		…
569		692
570	struct timeval tv;	693	struct timeval tv;
571	gettimeofday (&tv, 0);	694	gettimeofday (&tv, 0);
572	return tv.tv_sec + tv.tv_usec * 1e-6;	695	return tv.tv_sec + tv.tv_usec * 1e-6;
573	}	696	}
		697	#endif
574		698
575	ev_tstamp inline_size	699	inline_size ev_tstamp
576	get_clock (void)	700	get_clock (void)
577	{	701	{
578	#if EV_USE_MONOTONIC	702	#if EV_USE_MONOTONIC
579	if (expect_true (have_monotonic))	703	if (expect_true (have_monotonic))
580	{	704	{
…		…
614		738
615	tv.tv_sec = (time_t)delay;	739	tv.tv_sec = (time_t)delay;
616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	740	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617		741
618	/* 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 */
619	/* somehting nto guaranteed by newer posix versions, but guaranteed */	743	/* something not guaranteed by newer posix versions, but guaranteed */
620	/* by older ones */	744	/* by older ones */
621	select (0, 0, 0, 0, &tv);	745	select (0, 0, 0, 0, &tv);
622	#endif	746	#endif
623	}	747	}
624	}	748	}
625		749
626	/*****************************************************************************/	750	/*****************************************************************************/
627		751
628	#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 */
629		753
630	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
631	array_nextsize (int elem, int cur, int cnt)	757	array_nextsize (int elem, int cur, int cnt)
632	{	758	{
633	int ncur = cur + 1;	759	int ncur = cur + 1;
634		760
635	do	761	do
…		…
680	#define array_free(stem, idx) \	806	#define array_free(stem, idx) \
681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	807	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682		808
683	/*****************************************************************************/	809	/*****************************************************************************/
684		810
		811	/* dummy callback for pending events */
		812	static void noinline
		813	pendingcb (EV_P_ ev_prepare *w, int revents)
		814	{
		815	}
		816
685	void noinline	817	void noinline
686	ev_feed_event (EV_P_ void *w, int revents)	818	ev_feed_event (EV_P_ void *w, int revents)
687	{	819	{
688	W w_ = (W)w;	820	W w_ = (W)w;
689	int pri = ABSPRI (w_);	821	int pri = ABSPRI (w_);
…		…
697	pendings [pri][w_->pending - 1].w = w_;	829	pendings [pri][w_->pending - 1].w = w_;
698	pendings [pri][w_->pending - 1].events = revents;	830	pendings [pri][w_->pending - 1].events = revents;
699	}	831	}
700	}	832	}
701		833
702	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
703	queue_events (EV_P_ W *events, int eventcnt, int type)	850	queue_events (EV_P_ W *events, int eventcnt, int type)
704	{	851	{
705	int i;	852	int i;
706		853
707	for (i = 0; i < eventcnt; ++i)	854	for (i = 0; i < eventcnt; ++i)
708	ev_feed_event (EV_A_ events [i], type);	855	ev_feed_event (EV_A_ events [i], type);
709	}	856	}
710		857
711	/*****************************************************************************/	858	/*****************************************************************************/
712		859
713	void inline_speed	860	inline_speed void
714	fd_event (EV_P_ int fd, int revents)	861	fd_event_nc (EV_P_ int fd, int revents)
715	{	862	{
716	ANFD *anfd = anfds + fd;	863	ANFD *anfd = anfds + fd;
717	ev_io *w;	864	ev_io *w;
718		865
719	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)
…		…
723	if (ev)	870	if (ev)
724	ev_feed_event (EV_A_ (W)w, ev);	871	ev_feed_event (EV_A_ (W)w, ev);
725	}	872	}
726	}	873	}
727		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
728	void	886	void
729	ev_feed_fd_event (EV_P_ int fd, int revents)	887	ev_feed_fd_event (EV_P_ int fd, int revents)
730	{	888	{
731	if (fd >= 0 && fd < anfdmax)	889	if (fd >= 0 && fd < anfdmax)
732	fd_event (EV_A_ fd, revents);	890	fd_event_nc (EV_A_ fd, revents);
733	}	891	}
734		892
735	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
736	fd_reify (EV_P)	896	fd_reify (EV_P)
737	{	897	{
738	int i;	898	int i;
739		899
740	for (i = 0; i < fdchangecnt; ++i)	900	for (i = 0; i < fdchangecnt; ++i)
…		…
750		910
751	#if EV_SELECT_IS_WINSOCKET	911	#if EV_SELECT_IS_WINSOCKET
752	if (events)	912	if (events)
753	{	913	{
754	unsigned long arg;	914	unsigned long arg;
755	#ifdef EV_FD_TO_WIN32_HANDLE
756	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	915	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
757	#else
758	anfd->handle = _get_osfhandle (fd);
759	#endif
760	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));
761	}	917	}
762	#endif	918	#endif
763		919
764	{	920	{
…		…
766	unsigned char o_reify = anfd->reify;	922	unsigned char o_reify = anfd->reify;
767		923
768	anfd->reify = 0;	924	anfd->reify = 0;
769	anfd->events = events;	925	anfd->events = events;
770		926
771	if (o_events != events || o_reify & EV_IOFDSET)	927	if (o_events != events || o_reify & EV__IOFDSET)
772	backend_modify (EV_A_ fd, o_events, events);	928	backend_modify (EV_A_ fd, o_events, events);
773	}	929	}
774	}	930	}
775		931
776	fdchangecnt = 0;	932	fdchangecnt = 0;
777	}	933	}
778		934
779	void inline_size	935	/* something about the given fd changed */
		936	inline_size void
780	fd_change (EV_P_ int fd, int flags)	937	fd_change (EV_P_ int fd, int flags)
781	{	938	{
782	unsigned char reify = anfds [fd].reify;	939	unsigned char reify = anfds [fd].reify;
783	anfds [fd].reify |= flags;	940	anfds [fd].reify |= flags;
784		941
…		…
788	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	945	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
789	fdchanges [fdchangecnt - 1] = fd;	946	fdchanges [fdchangecnt - 1] = fd;
790	}	947	}
791	}	948	}
792		949
793	void inline_speed	950	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		951	inline_speed void
794	fd_kill (EV_P_ int fd)	952	fd_kill (EV_P_ int fd)
795	{	953	{
796	ev_io *w;	954	ev_io *w;
797		955
798	while ((w = (ev_io *)anfds [fd].head))	956	while ((w = (ev_io *)anfds [fd].head))
…		…
800	ev_io_stop (EV_A_ w);	958	ev_io_stop (EV_A_ w);
801	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);
802	}	960	}
803	}	961	}
804		962
805	int inline_size	963	/* check whether the given fd is atcually valid, for error recovery */
		964	inline_size int
806	fd_valid (int fd)	965	fd_valid (int fd)
807	{	966	{
808	#ifdef _WIN32	967	#ifdef _WIN32
809	return _get_osfhandle (fd) != -1;	968	return _get_osfhandle (fd) != -1;
810	#else	969	#else
…		…
832		991
833	for (fd = anfdmax; fd--; )	992	for (fd = anfdmax; fd--; )
834	if (anfds [fd].events)	993	if (anfds [fd].events)
835	{	994	{
836	fd_kill (EV_A_ fd);	995	fd_kill (EV_A_ fd);
837	return;	996	break;
838	}	997	}
839	}	998	}
840		999
841	/* 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 */
842	static void noinline	1001	static void noinline
…		…
847	for (fd = 0; fd < anfdmax; ++fd)	1006	for (fd = 0; fd < anfdmax; ++fd)
848	if (anfds [fd].events)	1007	if (anfds [fd].events)
849	{	1008	{
850	anfds [fd].events = 0;	1009	anfds [fd].events = 0;
851	anfds [fd].emask = 0;	1010	anfds [fd].emask = 0;
852	fd_change (EV_A_ fd, EV_IOFDSET | 1);	1011	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
853	}	1012	}
854	}	1013	}
855		1014
856	/*****************************************************************************/	1015	/*****************************************************************************/
857		1016
…		…
873	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	1032	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
874	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	1033	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
875	#define UPHEAP_DONE(p,k) ((p) == (k))	1034	#define UPHEAP_DONE(p,k) ((p) == (k))
876		1035
877	/* away from the root */	1036	/* away from the root */
878	void inline_speed	1037	inline_speed void
879	downheap (ANHE *heap, int N, int k)	1038	downheap (ANHE *heap, int N, int k)
880	{	1039	{
881	ANHE he = heap [k];	1040	ANHE he = heap [k];
882	ANHE *E = heap + N + HEAP0;	1041	ANHE *E = heap + N + HEAP0;
883		1042
…		…
923	#define HEAP0 1	1082	#define HEAP0 1
924	#define HPARENT(k) ((k) >> 1)	1083	#define HPARENT(k) ((k) >> 1)
925	#define UPHEAP_DONE(p,k) (!(p))	1084	#define UPHEAP_DONE(p,k) (!(p))
926		1085
927	/* away from the root */	1086	/* away from the root */
928	void inline_speed	1087	inline_speed void
929	downheap (ANHE *heap, int N, int k)	1088	downheap (ANHE *heap, int N, int k)
930	{	1089	{
931	ANHE he = heap [k];	1090	ANHE he = heap [k];
932		1091
933	for (;;)	1092	for (;;)
934	{	1093	{
935	int c = k << 1;	1094	int c = k << 1;
936		1095
937	if (c > N + HEAP0 - 1)	1096	if (c >= N + HEAP0)
938	break;	1097	break;
939		1098
940	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])
941	? 1 : 0;	1100	? 1 : 0;
942		1101
…		…
953	ev_active (ANHE_w (he)) = k;	1112	ev_active (ANHE_w (he)) = k;
954	}	1113	}
955	#endif	1114	#endif
956		1115
957	/* towards the root */	1116	/* towards the root */
958	void inline_speed	1117	inline_speed void
959	upheap (ANHE *heap, int k)	1118	upheap (ANHE *heap, int k)
960	{	1119	{
961	ANHE he = heap [k];	1120	ANHE he = heap [k];
962		1121
963	for (;;)	1122	for (;;)
…		…
974		1133
975	heap [k] = he;	1134	heap [k] = he;
976	ev_active (ANHE_w (he)) = k;	1135	ev_active (ANHE_w (he)) = k;
977	}	1136	}
978		1137
979	void inline_size	1138	/* move an element suitably so it is in a correct place */
		1139	inline_size void
980	adjustheap (ANHE *heap, int N, int k)	1140	adjustheap (ANHE *heap, int N, int k)
981	{	1141	{
982	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)]))
983	upheap (heap, k);	1143	upheap (heap, k);
984	else	1144	else
985	downheap (heap, N, k);	1145	downheap (heap, N, k);
986	}	1146	}
987		1147
988	/* 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 */
989	void inline_size	1149	inline_size void
990	reheap (ANHE *heap, int N)	1150	reheap (ANHE *heap, int N)
991	{	1151	{
992	int i;	1152	int i;
993		1153
994	/* 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 */
…		…
997	upheap (heap, i + HEAP0);	1157	upheap (heap, i + HEAP0);
998	}	1158	}
999		1159
1000	/*****************************************************************************/	1160	/*****************************************************************************/
1001		1161
		1162	/* associate signal watchers to a signal signal */
1002	typedef struct	1163	typedef struct
1003	{	1164	{
		1165	EV_ATOMIC_T pending;
		1166	#if EV_MULTIPLICITY
		1167	EV_P;
		1168	#endif
1004	WL head;	1169	WL head;
1005	EV_ATOMIC_T gotsig;
1006	} ANSIG;	1170	} ANSIG;
1007		1171
1008	static ANSIG *signals;	1172	static ANSIG signals [EV_NSIG - 1];
1009	static int signalmax;
1010
1011	static EV_ATOMIC_T gotsig;
1012		1173
1013	/*****************************************************************************/	1174	/*****************************************************************************/
1014		1175
1015	void inline_speed	1176	/* used to prepare libev internal fd's */
		1177	/* this is not fork-safe */
		1178	inline_speed void
1016	fd_intern (int fd)	1179	fd_intern (int fd)
1017	{	1180	{
1018	#ifdef _WIN32	1181	#ifdef _WIN32
1019	unsigned long arg = 1;	1182	unsigned long arg = 1;
1020	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1183	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1025	}	1188	}
1026		1189
1027	static void noinline	1190	static void noinline
1028	evpipe_init (EV_P)	1191	evpipe_init (EV_P)
1029	{	1192	{
1030	if (!ev_is_active (&pipeev))	1193	if (!ev_is_active (&pipe_w))
1031	{	1194	{
1032	#if EV_USE_EVENTFD	1195	#if EV_USE_EVENTFD
		1196	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1197	if (evfd < 0 && errno == EINVAL)
1033	if ((evfd = eventfd (0, 0)) >= 0)	1198	evfd = eventfd (0, 0);
		1199
		1200	if (evfd >= 0)
1034	{	1201	{
1035	evpipe [0] = -1;	1202	evpipe [0] = -1;
1036	fd_intern (evfd);	1203	fd_intern (evfd); /* doing it twice doesn't hurt */
1037	ev_io_set (&pipeev, evfd, EV_READ);	1204	ev_io_set (&pipe_w, evfd, EV_READ);
1038	}	1205	}
1039	else	1206	else
1040	#endif	1207	#endif
1041	{	1208	{
1042	while (pipe (evpipe))	1209	while (pipe (evpipe))
1043	ev_syserr ("(libev) error creating signal/async pipe");	1210	ev_syserr ("(libev) error creating signal/async pipe");
1044		1211
1045	fd_intern (evpipe [0]);	1212	fd_intern (evpipe [0]);
1046	fd_intern (evpipe [1]);	1213	fd_intern (evpipe [1]);
1047	ev_io_set (&pipeev, evpipe [0], EV_READ);	1214	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1048	}	1215	}
1049		1216
1050	ev_io_start (EV_A_ &pipeev);	1217	ev_io_start (EV_A_ &pipe_w);
1051	ev_unref (EV_A); /* watcher should not keep loop alive */	1218	ev_unref (EV_A); /* watcher should not keep loop alive */
1052	}	1219	}
1053	}	1220	}
1054		1221
1055	void inline_size	1222	inline_size void
1056	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1223	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1057	{	1224	{
1058	if (!*flag)	1225	if (!*flag)
1059	{	1226	{
1060	int old_errno = errno; /* save errno because write might clobber it */	1227	int old_errno = errno; /* save errno because write might clobber it */
…		…
1073		1240
1074	errno = old_errno;	1241	errno = old_errno;
1075	}	1242	}
1076	}	1243	}
1077		1244
		1245	/* called whenever the libev signal pipe */
		1246	/* got some events (signal, async) */
1078	static void	1247	static void
1079	pipecb (EV_P_ ev_io *iow, int revents)	1248	pipecb (EV_P_ ev_io *iow, int revents)
1080	{	1249	{
		1250	int i;
		1251
1081	#if EV_USE_EVENTFD	1252	#if EV_USE_EVENTFD
1082	if (evfd >= 0)	1253	if (evfd >= 0)
1083	{	1254	{
1084	uint64_t counter;	1255	uint64_t counter;
1085	read (evfd, &counter, sizeof (uint64_t));	1256	read (evfd, &counter, sizeof (uint64_t));
…		…
1089	{	1260	{
1090	char dummy;	1261	char dummy;
1091	read (evpipe [0], &dummy, 1);	1262	read (evpipe [0], &dummy, 1);
1092	}	1263	}
1093		1264
1094	if (gotsig && ev_is_default_loop (EV_A))	1265	if (sig_pending)
1095	{	1266	{
1096	int signum;	1267	sig_pending = 0;
1097	gotsig = 0;
1098		1268
1099	for (signum = signalmax; signum--; )	1269	for (i = EV_NSIG - 1; i--; )
1100	if (signals [signum].gotsig)	1270	if (expect_false (signals [i].pending))
1101	ev_feed_signal_event (EV_A_ signum + 1);	1271	ev_feed_signal_event (EV_A_ i + 1);
1102	}	1272	}
1103		1273
1104	#if EV_ASYNC_ENABLE	1274	#if EV_ASYNC_ENABLE
1105	if (gotasync)	1275	if (async_pending)
1106	{	1276	{
1107	int i;	1277	async_pending = 0;
1108	gotasync = 0;
1109		1278
1110	for (i = asynccnt; i--; )	1279	for (i = asynccnt; i--; )
1111	if (asyncs [i]->sent)	1280	if (asyncs [i]->sent)
1112	{	1281	{
1113	asyncs [i]->sent = 0;	1282	asyncs [i]->sent = 0;
…		…
1121		1290
1122	static void	1291	static void
1123	ev_sighandler (int signum)	1292	ev_sighandler (int signum)
1124	{	1293	{
1125	#if EV_MULTIPLICITY	1294	#if EV_MULTIPLICITY
1126	struct ev_loop *loop = &default_loop_struct;	1295	EV_P = signals [signum - 1].loop;
1127	#endif	1296	#endif
1128		1297
1129	#if _WIN32	1298	#if _WIN32
1130	signal (signum, ev_sighandler);	1299	signal (signum, ev_sighandler);
1131	#endif	1300	#endif
1132		1301
1133	signals [signum - 1].gotsig = 1;	1302	signals [signum - 1].pending = 1;
1134	evpipe_write (EV_A_ &gotsig);	1303	evpipe_write (EV_A_ &sig_pending);
1135	}	1304	}
1136		1305
1137	void noinline	1306	void noinline
1138	ev_feed_signal_event (EV_P_ int signum)	1307	ev_feed_signal_event (EV_P_ int signum)
1139	{	1308	{
1140	WL w;	1309	WL w;
1141		1310
		1311	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1312	return;
		1313
		1314	--signum;
		1315
1142	#if EV_MULTIPLICITY	1316	#if EV_MULTIPLICITY
1143	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 */
1144	#endif	1318	/* or, likely more useful, feeding a signal nobody is waiting for */
1145		1319
1146	--signum;	1320	if (expect_false (signals [signum].loop != EV_A))
1147
1148	if (signum < 0 || signum >= signalmax)
1149	return;	1321	return;
		1322	#endif
1150		1323
1151	signals [signum].gotsig = 0;	1324	signals [signum].pending = 0;
1152		1325
1153	for (w = signals [signum].head; w; w = w->next)	1326	for (w = signals [signum].head; w; w = w->next)
1154	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1327	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1155	}	1328	}
1156		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
1157	/*****************************************************************************/	1350	/*****************************************************************************/
1158		1351
1159	static WL childs [EV_PID_HASHSIZE];	1352	static WL childs [EV_PID_HASHSIZE];
1160		1353
1161	#ifndef _WIN32	1354	#ifndef _WIN32
…		…
1164		1357
1165	#ifndef WIFCONTINUED	1358	#ifndef WIFCONTINUED
1166	# define WIFCONTINUED(status) 0	1359	# define WIFCONTINUED(status) 0
1167	#endif	1360	#endif
1168		1361
1169	void inline_speed	1362	/* handle a single child status event */
		1363	inline_speed void
1170	child_reap (EV_P_ int chain, int pid, int status)	1364	child_reap (EV_P_ int chain, int pid, int status)
1171	{	1365	{
1172	ev_child *w;	1366	ev_child *w;
1173	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1367	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1174		1368
…		…
1187		1381
1188	#ifndef WCONTINUED	1382	#ifndef WCONTINUED
1189	# define WCONTINUED 0	1383	# define WCONTINUED 0
1190	#endif	1384	#endif
1191		1385
		1386	/* called on sigchld etc., calls waitpid */
1192	static void	1387	static void
1193	childcb (EV_P_ ev_signal *sw, int revents)	1388	childcb (EV_P_ ev_signal *sw, int revents)
1194	{	1389	{
1195	int pid, status;	1390	int pid, status;
1196		1391
…		…
1303	ev_backend (EV_P)	1498	ev_backend (EV_P)
1304	{	1499	{
1305	return backend;	1500	return backend;
1306	}	1501	}
1307		1502
		1503	#if EV_MINIMAL < 2
1308	unsigned int	1504	unsigned int
1309	ev_loop_count (EV_P)	1505	ev_loop_count (EV_P)
1310	{	1506	{
1311	return loop_count;	1507	return loop_count;
1312	}	1508	}
1313		1509
		1510	unsigned int
		1511	ev_loop_depth (EV_P)
		1512	{
		1513	return loop_depth;
		1514	}
		1515
1314	void	1516	void
1315	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1517	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1316	{	1518	{
1317	io_blocktime = interval;	1519	io_blocktime = interval;
1318	}	1520	}
…		…
1321	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1523	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1322	{	1524	{
1323	timeout_blocktime = interval;	1525	timeout_blocktime = interval;
1324	}	1526	}
1325		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 */
1326	static void noinline	1553	static void noinline
1327	loop_init (EV_P_ unsigned int flags)	1554	loop_init (EV_P_ unsigned int flags)
1328	{	1555	{
1329	if (!backend)	1556	if (!backend)
1330	{	1557	{
…		…
1346	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1573	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1347	have_monotonic = 1;	1574	have_monotonic = 1;
1348	}	1575	}
1349	#endif	1576	#endif
1350		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"));
		1588
1351	ev_rt_now = ev_time ();	1589	ev_rt_now = ev_time ();
1352	mn_now = get_clock ();	1590	mn_now = get_clock ();
1353	now_floor = mn_now;	1591	now_floor = mn_now;
1354	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
1355		1596
1356	io_blocktime = 0.;	1597	io_blocktime = 0.;
1357	timeout_blocktime = 0.;	1598	timeout_blocktime = 0.;
1358	backend = 0;	1599	backend = 0;
1359	backend_fd = -1;	1600	backend_fd = -1;
1360	gotasync = 0;	1601	sig_pending = 0;
		1602	#if EV_ASYNC_ENABLE
		1603	async_pending = 0;
		1604	#endif
1361	#if EV_USE_INOTIFY	1605	#if EV_USE_INOTIFY
1362	fs_fd = -2;	1606	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1363	#endif	1607	#endif
1364		1608	#if EV_USE_SIGNALFD
1365	/* pid check not overridable via env */	1609	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1366	#ifndef _WIN32
1367	if (flags & EVFLAG_FORKCHECK)
1368	curpid = getpid ();
1369	#endif	1610	#endif
1370
1371	if (!(flags & EVFLAG_NOENV)
1372	&& !enable_secure ()
1373	&& getenv ("LIBEV_FLAGS"))
1374	flags = atoi (getenv ("LIBEV_FLAGS"));
1375		1611
1376	if (!(flags & 0x0000ffffU))	1612	if (!(flags & 0x0000ffffU))
1377	flags |= ev_recommended_backends ();	1613	flags |= ev_recommended_backends ();
1378		1614
1379	#if EV_USE_PORT	1615	#if EV_USE_PORT
…		…
1390	#endif	1626	#endif
1391	#if EV_USE_SELECT	1627	#if EV_USE_SELECT
1392	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1628	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1393	#endif	1629	#endif
1394		1630
		1631	ev_prepare_init (&pending_w, pendingcb);
		1632
1395	ev_init (&pipeev, pipecb);	1633	ev_init (&pipe_w, pipecb);
1396	ev_set_priority (&pipeev, EV_MAXPRI);	1634	ev_set_priority (&pipe_w, EV_MAXPRI);
1397	}	1635	}
1398	}	1636	}
1399		1637
		1638	/* free up a loop structure */
1400	static void noinline	1639	static void noinline
1401	loop_destroy (EV_P)	1640	loop_destroy (EV_P)
1402	{	1641	{
1403	int i;	1642	int i;
1404		1643
1405	if (ev_is_active (&pipeev))	1644	if (ev_is_active (&pipe_w))
1406	{	1645	{
1407	ev_ref (EV_A); /* signal watcher */	1646	/*ev_ref (EV_A);*/
1408	ev_io_stop (EV_A_ &pipeev);	1647	/*ev_io_stop (EV_A_ &pipe_w);*/
1409		1648
1410	#if EV_USE_EVENTFD	1649	#if EV_USE_EVENTFD
1411	if (evfd >= 0)	1650	if (evfd >= 0)
1412	close (evfd);	1651	close (evfd);
1413	#endif	1652	#endif
1414		1653
1415	if (evpipe [0] >= 0)	1654	if (evpipe [0] >= 0)
1416	{	1655	{
1417	close (evpipe [0]);	1656	EV_WIN32_CLOSE_FD (evpipe [0]);
1418	close (evpipe [1]);	1657	EV_WIN32_CLOSE_FD (evpipe [1]);
1419	}	1658	}
1420	}	1659	}
		1660
		1661	#if EV_USE_SIGNALFD
		1662	if (ev_is_active (&sigfd_w))
		1663	close (sigfd);
		1664	#endif
1421		1665
1422	#if EV_USE_INOTIFY	1666	#if EV_USE_INOTIFY
1423	if (fs_fd >= 0)	1667	if (fs_fd >= 0)
1424	close (fs_fd);	1668	close (fs_fd);
1425	#endif	1669	#endif
…		…
1449	#if EV_IDLE_ENABLE	1693	#if EV_IDLE_ENABLE
1450	array_free (idle, [i]);	1694	array_free (idle, [i]);
1451	#endif	1695	#endif
1452	}	1696	}
1453		1697
1454	ev_free (anfds); anfdmax = 0;	1698	ev_free (anfds); anfds = 0; anfdmax = 0;
1455		1699
1456	/* have to use the microsoft-never-gets-it-right macro */	1700	/* have to use the microsoft-never-gets-it-right macro */
		1701	array_free (rfeed, EMPTY);
1457	array_free (fdchange, EMPTY);	1702	array_free (fdchange, EMPTY);
1458	array_free (timer, EMPTY);	1703	array_free (timer, EMPTY);
1459	#if EV_PERIODIC_ENABLE	1704	#if EV_PERIODIC_ENABLE
1460	array_free (periodic, EMPTY);	1705	array_free (periodic, EMPTY);
1461	#endif	1706	#endif
…		…
1470		1715
1471	backend = 0;	1716	backend = 0;
1472	}	1717	}
1473		1718
1474	#if EV_USE_INOTIFY	1719	#if EV_USE_INOTIFY
1475	void inline_size infy_fork (EV_P);	1720	inline_size void infy_fork (EV_P);
1476	#endif	1721	#endif
1477		1722
1478	void inline_size	1723	inline_size void
1479	loop_fork (EV_P)	1724	loop_fork (EV_P)
1480	{	1725	{
1481	#if EV_USE_PORT	1726	#if EV_USE_PORT
1482	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1727	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1483	#endif	1728	#endif
…		…
1489	#endif	1734	#endif
1490	#if EV_USE_INOTIFY	1735	#if EV_USE_INOTIFY
1491	infy_fork (EV_A);	1736	infy_fork (EV_A);
1492	#endif	1737	#endif
1493		1738
1494	if (ev_is_active (&pipeev))	1739	if (ev_is_active (&pipe_w))
1495	{	1740	{
1496	/* this "locks" the handlers against writing to the pipe */	1741	/* this "locks" the handlers against writing to the pipe */
1497	/* while we modify the fd vars */	1742	/* while we modify the fd vars */
1498	gotsig = 1;	1743	sig_pending = 1;
1499	#if EV_ASYNC_ENABLE	1744	#if EV_ASYNC_ENABLE
1500	gotasync = 1;	1745	async_pending = 1;
1501	#endif	1746	#endif
1502		1747
1503	ev_ref (EV_A);	1748	ev_ref (EV_A);
1504	ev_io_stop (EV_A_ &pipeev);	1749	ev_io_stop (EV_A_ &pipe_w);
1505		1750
1506	#if EV_USE_EVENTFD	1751	#if EV_USE_EVENTFD
1507	if (evfd >= 0)	1752	if (evfd >= 0)
1508	close (evfd);	1753	close (evfd);
1509	#endif	1754	#endif
1510		1755
1511	if (evpipe [0] >= 0)	1756	if (evpipe [0] >= 0)
1512	{	1757	{
1513	close (evpipe [0]);	1758	EV_WIN32_CLOSE_FD (evpipe [0]);
1514	close (evpipe [1]);	1759	EV_WIN32_CLOSE_FD (evpipe [1]);
1515	}	1760	}
1516		1761
1517	evpipe_init (EV_A);	1762	evpipe_init (EV_A);
1518	/* now iterate over everything, in case we missed something */	1763	/* now iterate over everything, in case we missed something */
1519	pipecb (EV_A_ &pipeev, EV_READ);	1764	pipecb (EV_A_ &pipe_w, EV_READ);
1520	}	1765	}
1521		1766
1522	postfork = 0;	1767	postfork = 0;
1523	}	1768	}
1524		1769
1525	#if EV_MULTIPLICITY	1770	#if EV_MULTIPLICITY
1526		1771
1527	struct ev_loop *	1772	struct ev_loop *
1528	ev_loop_new (unsigned int flags)	1773	ev_loop_new (unsigned int flags)
1529	{	1774	{
1530	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1775	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1531		1776
1532	memset (loop, 0, sizeof (struct ev_loop));	1777	memset (EV_A, 0, sizeof (struct ev_loop));
1533
1534	loop_init (EV_A_ flags);	1778	loop_init (EV_A_ flags);
1535		1779
1536	if (ev_backend (EV_A))	1780	if (ev_backend (EV_A))
1537	return loop;	1781	return EV_A;
1538		1782
1539	return 0;	1783	return 0;
1540	}	1784	}
1541		1785
1542	void	1786	void
…		…
1549	void	1793	void
1550	ev_loop_fork (EV_P)	1794	ev_loop_fork (EV_P)
1551	{	1795	{
1552	postfork = 1; /* must be in line with ev_default_fork */	1796	postfork = 1; /* must be in line with ev_default_fork */
1553	}	1797	}
		1798	#endif /* multiplicity */
1554		1799
1555	#if EV_VERIFY	1800	#if EV_VERIFY
1556	static void noinline	1801	static void noinline
1557	verify_watcher (EV_P_ W w)	1802	verify_watcher (EV_P_ W w)
1558	{	1803	{
…		…
1586	verify_watcher (EV_A_ ws [cnt]);	1831	verify_watcher (EV_A_ ws [cnt]);
1587	}	1832	}
1588	}	1833	}
1589	#endif	1834	#endif
1590		1835
		1836	#if EV_MINIMAL < 2
1591	void	1837	void
1592	ev_loop_verify (EV_P)	1838	ev_loop_verify (EV_P)
1593	{	1839	{
1594	#if EV_VERIFY	1840	#if EV_VERIFY
1595	int i;	1841	int i;
…		…
1644	assert (checkmax >= checkcnt);	1890	assert (checkmax >= checkcnt);
1645	array_verify (EV_A_ (W *)checks, checkcnt);	1891	array_verify (EV_A_ (W *)checks, checkcnt);
1646		1892
1647	# if 0	1893	# if 0
1648	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1894	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1649	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1895	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1650	# endif
1651	#endif	1896	# endif
		1897	#endif
1652	}	1898	}
1653		1899	#endif
1654	#endif /* multiplicity */
1655		1900
1656	#if EV_MULTIPLICITY	1901	#if EV_MULTIPLICITY
1657	struct ev_loop *	1902	struct ev_loop *
1658	ev_default_loop_init (unsigned int flags)	1903	ev_default_loop_init (unsigned int flags)
1659	#else	1904	#else
…		…
1662	#endif	1907	#endif
1663	{	1908	{
1664	if (!ev_default_loop_ptr)	1909	if (!ev_default_loop_ptr)
1665	{	1910	{
1666	#if EV_MULTIPLICITY	1911	#if EV_MULTIPLICITY
1667	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1912	EV_P = ev_default_loop_ptr = &default_loop_struct;
1668	#else	1913	#else
1669	ev_default_loop_ptr = 1;	1914	ev_default_loop_ptr = 1;
1670	#endif	1915	#endif
1671		1916
1672	loop_init (EV_A_ flags);	1917	loop_init (EV_A_ flags);
…		…
1689		1934
1690	void	1935	void
1691	ev_default_destroy (void)	1936	ev_default_destroy (void)
1692	{	1937	{
1693	#if EV_MULTIPLICITY	1938	#if EV_MULTIPLICITY
1694	struct ev_loop *loop = ev_default_loop_ptr;	1939	EV_P = ev_default_loop_ptr;
1695	#endif	1940	#endif
1696		1941
1697	ev_default_loop_ptr = 0;	1942	ev_default_loop_ptr = 0;
1698		1943
1699	#ifndef _WIN32	1944	#ifndef _WIN32
…		…
1706		1951
1707	void	1952	void
1708	ev_default_fork (void)	1953	ev_default_fork (void)
1709	{	1954	{
1710	#if EV_MULTIPLICITY	1955	#if EV_MULTIPLICITY
1711	struct ev_loop *loop = ev_default_loop_ptr;	1956	EV_P = ev_default_loop_ptr;
1712	#endif	1957	#endif
1713		1958
1714	postfork = 1; /* must be in line with ev_loop_fork */	1959	postfork = 1; /* must be in line with ev_loop_fork */
1715	}	1960	}
1716		1961
…		…
1720	ev_invoke (EV_P_ void *w, int revents)	1965	ev_invoke (EV_P_ void *w, int revents)
1721	{	1966	{
1722	EV_CB_INVOKE ((W)w, revents);	1967	EV_CB_INVOKE ((W)w, revents);
1723	}	1968	}
1724		1969
1725	void inline_speed	1970	unsigned int
1726	call_pending (EV_P)	1971	ev_pending_count (EV_P)
		1972	{
		1973	int pri;
		1974	unsigned int count = 0;
		1975
		1976	for (pri = NUMPRI; pri--; )
		1977	count += pendingcnt [pri];
		1978
		1979	return count;
		1980	}
		1981
		1982	void noinline
		1983	ev_invoke_pending (EV_P)
1727	{	1984	{
1728	int pri;	1985	int pri;
1729		1986
1730	for (pri = NUMPRI; pri--; )	1987	for (pri = NUMPRI; pri--; )
1731	while (pendingcnt [pri])	1988	while (pendingcnt [pri])
1732	{	1989	{
1733	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1990	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1734		1991
1735	if (expect_true (p->w))
1736	{
1737	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	1992	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1993	/* ^ this is no longer true, as pending_w could be here */
1738		1994
1739	p->w->pending = 0;	1995	p->w->pending = 0;
1740	EV_CB_INVOKE (p->w, p->events);	1996	EV_CB_INVOKE (p->w, p->events);
1741	EV_FREQUENT_CHECK;	1997	EV_FREQUENT_CHECK;
1742	}
1743	}	1998	}
1744	}	1999	}
1745		2000
1746	#if EV_IDLE_ENABLE	2001	#if EV_IDLE_ENABLE
1747	void inline_size	2002	/* make idle watchers pending. this handles the "call-idle */
		2003	/* only when higher priorities are idle" logic */
		2004	inline_size void
1748	idle_reify (EV_P)	2005	idle_reify (EV_P)
1749	{	2006	{
1750	if (expect_false (idleall))	2007	if (expect_false (idleall))
1751	{	2008	{
1752	int pri;	2009	int pri;
…		…
1764	}	2021	}
1765	}	2022	}
1766	}	2023	}
1767	#endif	2024	#endif
1768		2025
1769	void inline_size	2026	/* make timers pending */
		2027	inline_size void
1770	timers_reify (EV_P)	2028	timers_reify (EV_P)
1771	{	2029	{
1772	EV_FREQUENT_CHECK;	2030	EV_FREQUENT_CHECK;
1773		2031
1774	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	2032	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1775	{	2033	{
1776	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	2034	do
1777
1778	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1779
1780	/* first reschedule or stop timer */
1781	if (w->repeat)
1782	{	2035	{
		2036	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2037
		2038	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2039
		2040	/* first reschedule or stop timer */
		2041	if (w->repeat)
		2042	{
1783	ev_at (w) += w->repeat;	2043	ev_at (w) += w->repeat;
1784	if (ev_at (w) < mn_now)	2044	if (ev_at (w) < mn_now)
1785	ev_at (w) = mn_now;	2045	ev_at (w) = mn_now;
1786		2046
1787	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));	2047	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1788		2048
1789	ANHE_at_cache (timers [HEAP0]);	2049	ANHE_at_cache (timers [HEAP0]);
1790	downheap (timers, timercnt, HEAP0);	2050	downheap (timers, timercnt, HEAP0);
		2051	}
		2052	else
		2053	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2054
		2055	EV_FREQUENT_CHECK;
		2056	feed_reverse (EV_A_ (W)w);
1791	}	2057	}
1792	else	2058	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1793	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1794		2059
1795	EV_FREQUENT_CHECK;
1796	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	2060	feed_reverse_done (EV_A_ EV_TIMEOUT);
1797	}	2061	}
1798	}	2062	}
1799		2063
1800	#if EV_PERIODIC_ENABLE	2064	#if EV_PERIODIC_ENABLE
1801	void inline_size	2065	/* make periodics pending */
		2066	inline_size void
1802	periodics_reify (EV_P)	2067	periodics_reify (EV_P)
1803	{	2068	{
1804	EV_FREQUENT_CHECK;	2069	EV_FREQUENT_CHECK;
1805		2070
1806	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2071	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1807	{	2072	{
1808	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2073	int feed_count = 0;
1809		2074
1810	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2075	do
1811
1812	/* first reschedule or stop timer */
1813	if (w->reschedule_cb)
1814	{	2076	{
		2077	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2078
		2079	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2080
		2081	/* first reschedule or stop timer */
		2082	if (w->reschedule_cb)
		2083	{
1815	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2084	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1816		2085
1817	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	2086	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1818		2087
1819	ANHE_at_cache (periodics [HEAP0]);	2088	ANHE_at_cache (periodics [HEAP0]);
1820	downheap (periodics, periodiccnt, HEAP0);	2089	downheap (periodics, periodiccnt, HEAP0);
		2090	}
		2091	else if (w->interval)
		2092	{
		2093	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2094	/* if next trigger time is not sufficiently in the future, put it there */
		2095	/* this might happen because of floating point inexactness */
		2096	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2097	{
		2098	ev_at (w) += w->interval;
		2099
		2100	/* if interval is unreasonably low we might still have a time in the past */
		2101	/* so correct this. this will make the periodic very inexact, but the user */
		2102	/* has effectively asked to get triggered more often than possible */
		2103	if (ev_at (w) < ev_rt_now)
		2104	ev_at (w) = ev_rt_now;
		2105	}
		2106
		2107	ANHE_at_cache (periodics [HEAP0]);
		2108	downheap (periodics, periodiccnt, HEAP0);
		2109	}
		2110	else
		2111	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2112
		2113	EV_FREQUENT_CHECK;
		2114	feed_reverse (EV_A_ (W)w);
1821	}	2115	}
1822	else if (w->interval)	2116	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1823	{
1824	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1825	/* if next trigger time is not sufficiently in the future, put it there */
1826	/* this might happen because of floating point inexactness */
1827	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1828	{
1829	ev_at (w) += w->interval;
1830		2117
1831	/* if interval is unreasonably low we might still have a time in the past */
1832	/* so correct this. this will make the periodic very inexact, but the user */
1833	/* has effectively asked to get triggered more often than possible */
1834	if (ev_at (w) < ev_rt_now)
1835	ev_at (w) = ev_rt_now;
1836	}
1837
1838	ANHE_at_cache (periodics [HEAP0]);
1839	downheap (periodics, periodiccnt, HEAP0);
1840	}
1841	else
1842	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1843
1844	EV_FREQUENT_CHECK;
1845	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	2118	feed_reverse_done (EV_A_ EV_PERIODIC);
1846	}	2119	}
1847	}	2120	}
1848		2121
		2122	/* simply recalculate all periodics */
		2123	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1849	static void noinline	2124	static void noinline
1850	periodics_reschedule (EV_P)	2125	periodics_reschedule (EV_P)
1851	{	2126	{
1852	int i;	2127	int i;
1853		2128
…		…
1866		2141
1867	reheap (periodics, periodiccnt);	2142	reheap (periodics, periodiccnt);
1868	}	2143	}
1869	#endif	2144	#endif
1870		2145
1871	void inline_speed	2146	/* adjust all timers by a given offset */
		2147	static void noinline
		2148	timers_reschedule (EV_P_ ev_tstamp adjust)
		2149	{
		2150	int i;
		2151
		2152	for (i = 0; i < timercnt; ++i)
		2153	{
		2154	ANHE *he = timers + i + HEAP0;
		2155	ANHE_w (*he)->at += adjust;
		2156	ANHE_at_cache (*he);
		2157	}
		2158	}
		2159
		2160	/* fetch new monotonic and realtime times from the kernel */
		2161	/* also detetc if there was a timejump, and act accordingly */
		2162	inline_speed void
1872	time_update (EV_P_ ev_tstamp max_block)	2163	time_update (EV_P_ ev_tstamp max_block)
1873	{	2164	{
1874	int i;
1875
1876	#if EV_USE_MONOTONIC	2165	#if EV_USE_MONOTONIC
1877	if (expect_true (have_monotonic))	2166	if (expect_true (have_monotonic))
1878	{	2167	{
		2168	int i;
1879	ev_tstamp odiff = rtmn_diff;	2169	ev_tstamp odiff = rtmn_diff;
1880		2170
1881	mn_now = get_clock ();	2171	mn_now = get_clock ();
1882		2172
1883	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2173	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1909	ev_rt_now = ev_time ();	2199	ev_rt_now = ev_time ();
1910	mn_now = get_clock ();	2200	mn_now = get_clock ();
1911	now_floor = mn_now;	2201	now_floor = mn_now;
1912	}	2202	}
1913		2203
		2204	/* no timer adjustment, as the monotonic clock doesn't jump */
		2205	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1914	# if EV_PERIODIC_ENABLE	2206	# if EV_PERIODIC_ENABLE
1915	periodics_reschedule (EV_A);	2207	periodics_reschedule (EV_A);
1916	# endif	2208	# endif
1917	/* no timer adjustment, as the monotonic clock doesn't jump */
1918	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1919	}	2209	}
1920	else	2210	else
1921	#endif	2211	#endif
1922	{	2212	{
1923	ev_rt_now = ev_time ();	2213	ev_rt_now = ev_time ();
1924		2214
1925	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2215	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1926	{	2216	{
		2217	/* adjust timers. this is easy, as the offset is the same for all of them */
		2218	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1927	#if EV_PERIODIC_ENABLE	2219	#if EV_PERIODIC_ENABLE
1928	periodics_reschedule (EV_A);	2220	periodics_reschedule (EV_A);
1929	#endif	2221	#endif
1930	/* adjust timers. this is easy, as the offset is the same for all of them */
1931	for (i = 0; i < timercnt; ++i)
1932	{
1933	ANHE *he = timers + i + HEAP0;
1934	ANHE_w (*he)->at += ev_rt_now - mn_now;
1935	ANHE_at_cache (*he);
1936	}
1937	}	2222	}
1938		2223
1939	mn_now = ev_rt_now;	2224	mn_now = ev_rt_now;
1940	}	2225	}
1941	}	2226	}
1942		2227
1943	void	2228	void
1944	ev_ref (EV_P)
1945	{
1946	++activecnt;
1947	}
1948
1949	void
1950	ev_unref (EV_P)
1951	{
1952	--activecnt;
1953	}
1954
1955	void
1956	ev_now_update (EV_P)
1957	{
1958	time_update (EV_A_ 1e100);
1959	}
1960
1961	static int loop_done;
1962
1963	void
1964	ev_loop (EV_P_ int flags)	2229	ev_loop (EV_P_ int flags)
1965	{	2230	{
		2231	#if EV_MINIMAL < 2
		2232	++loop_depth;
		2233	#endif
		2234
		2235	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2236
1966	loop_done = EVUNLOOP_CANCEL;	2237	loop_done = EVUNLOOP_CANCEL;
1967		2238
1968	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2239	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1969		2240
1970	do	2241	do
1971	{	2242	{
1972	#if EV_VERIFY >= 2	2243	#if EV_VERIFY >= 2
1973	ev_loop_verify (EV_A);	2244	ev_loop_verify (EV_A);
…		…
1986	/* we might have forked, so queue fork handlers */	2257	/* we might have forked, so queue fork handlers */
1987	if (expect_false (postfork))	2258	if (expect_false (postfork))
1988	if (forkcnt)	2259	if (forkcnt)
1989	{	2260	{
1990	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2261	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1991	call_pending (EV_A);	2262	EV_INVOKE_PENDING;
1992	}	2263	}
1993	#endif	2264	#endif
1994		2265
1995	/* queue prepare watchers (and execute them) */	2266	/* queue prepare watchers (and execute them) */
1996	if (expect_false (preparecnt))	2267	if (expect_false (preparecnt))
1997	{	2268	{
1998	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2269	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1999	call_pending (EV_A);	2270	EV_INVOKE_PENDING;
2000	}	2271	}
2001		2272
2002	if (expect_false (!activecnt))	2273	if (expect_false (loop_done))
2003	break;	2274	break;
2004		2275
2005	/* we might have forked, so reify kernel state if necessary */	2276	/* we might have forked, so reify kernel state if necessary */
2006	if (expect_false (postfork))	2277	if (expect_false (postfork))
2007	loop_fork (EV_A);	2278	loop_fork (EV_A);
…		…
2014	ev_tstamp waittime = 0.;	2285	ev_tstamp waittime = 0.;
2015	ev_tstamp sleeptime = 0.;	2286	ev_tstamp sleeptime = 0.;
2016		2287
2017	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2288	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
2018	{	2289	{
		2290	/* remember old timestamp for io_blocktime calculation */
		2291	ev_tstamp prev_mn_now = mn_now;
		2292
2019	/* update time to cancel out callback processing overhead */	2293	/* update time to cancel out callback processing overhead */
2020	time_update (EV_A_ 1e100);	2294	time_update (EV_A_ 1e100);
2021		2295
2022	waittime = MAX_BLOCKTIME;	2296	waittime = MAX_BLOCKTIME;
2023		2297
…		…
2033	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2307	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2034	if (waittime > to) waittime = to;	2308	if (waittime > to) waittime = to;
2035	}	2309	}
2036	#endif	2310	#endif
2037		2311
		2312	/* don't let timeouts decrease the waittime below timeout_blocktime */
2038	if (expect_false (waittime < timeout_blocktime))	2313	if (expect_false (waittime < timeout_blocktime))
2039	waittime = timeout_blocktime;	2314	waittime = timeout_blocktime;
2040		2315
2041	sleeptime = waittime - backend_fudge;	2316	/* extra check because io_blocktime is commonly 0 */
2042
2043	if (expect_true (sleeptime > io_blocktime))	2317	if (expect_false (io_blocktime))
2044	sleeptime = io_blocktime;
2045
2046	if (sleeptime)
2047	{	2318	{
		2319	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2320
		2321	if (sleeptime > waittime - backend_fudge)
		2322	sleeptime = waittime - backend_fudge;
		2323
		2324	if (expect_true (sleeptime > 0.))
		2325	{
2048	ev_sleep (sleeptime);	2326	ev_sleep (sleeptime);
2049	waittime -= sleeptime;	2327	waittime -= sleeptime;
		2328	}
2050	}	2329	}
2051	}	2330	}
2052		2331
		2332	#if EV_MINIMAL < 2
2053	++loop_count;	2333	++loop_count;
		2334	#endif
		2335	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2054	backend_poll (EV_A_ waittime);	2336	backend_poll (EV_A_ waittime);
		2337	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2055		2338
2056	/* update ev_rt_now, do magic */	2339	/* update ev_rt_now, do magic */
2057	time_update (EV_A_ waittime + sleeptime);	2340	time_update (EV_A_ waittime + sleeptime);
2058	}	2341	}
2059		2342
…		…
2070		2353
2071	/* queue check watchers, to be executed first */	2354	/* queue check watchers, to be executed first */
2072	if (expect_false (checkcnt))	2355	if (expect_false (checkcnt))
2073	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2356	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2074		2357
2075	call_pending (EV_A);	2358	EV_INVOKE_PENDING;
2076	}	2359	}
2077	while (expect_true (	2360	while (expect_true (
2078	activecnt	2361	activecnt
2079	&& !loop_done	2362	&& !loop_done
2080	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2363	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2081	));	2364	));
2082		2365
2083	if (loop_done == EVUNLOOP_ONE)	2366	if (loop_done == EVUNLOOP_ONE)
2084	loop_done = EVUNLOOP_CANCEL;	2367	loop_done = EVUNLOOP_CANCEL;
		2368
		2369	#if EV_MINIMAL < 2
		2370	--loop_depth;
		2371	#endif
2085	}	2372	}
2086		2373
2087	void	2374	void
2088	ev_unloop (EV_P_ int how)	2375	ev_unloop (EV_P_ int how)
2089	{	2376	{
2090	loop_done = how;	2377	loop_done = how;
2091	}	2378	}
2092		2379
		2380	void
		2381	ev_ref (EV_P)
		2382	{
		2383	++activecnt;
		2384	}
		2385
		2386	void
		2387	ev_unref (EV_P)
		2388	{
		2389	--activecnt;
		2390	}
		2391
		2392	void
		2393	ev_now_update (EV_P)
		2394	{
		2395	time_update (EV_A_ 1e100);
		2396	}
		2397
		2398	void
		2399	ev_suspend (EV_P)
		2400	{
		2401	ev_now_update (EV_A);
		2402	}
		2403
		2404	void
		2405	ev_resume (EV_P)
		2406	{
		2407	ev_tstamp mn_prev = mn_now;
		2408
		2409	ev_now_update (EV_A);
		2410	timers_reschedule (EV_A_ mn_now - mn_prev);
		2411	#if EV_PERIODIC_ENABLE
		2412	/* TODO: really do this? */
		2413	periodics_reschedule (EV_A);
		2414	#endif
		2415	}
		2416
2093	/*****************************************************************************/	2417	/*****************************************************************************/
		2418	/* singly-linked list management, used when the expected list length is short */
2094		2419
2095	void inline_size	2420	inline_size void
2096	wlist_add (WL *head, WL elem)	2421	wlist_add (WL *head, WL elem)
2097	{	2422	{
2098	elem->next = *head;	2423	elem->next = *head;
2099	*head = elem;	2424	*head = elem;
2100	}	2425	}
2101		2426
2102	void inline_size	2427	inline_size void
2103	wlist_del (WL *head, WL elem)	2428	wlist_del (WL *head, WL elem)
2104	{	2429	{
2105	while (*head)	2430	while (*head)
2106	{	2431	{
2107	if (*head == elem)	2432	if (expect_true (*head == elem))
2108	{	2433	{
2109	*head = elem->next;	2434	*head = elem->next;
2110	return;	2435	break;
2111	}	2436	}
2112		2437
2113	head = &(*head)->next;	2438	head = &(*head)->next;
2114	}	2439	}
2115	}	2440	}
2116		2441
2117	void inline_speed	2442	/* internal, faster, version of ev_clear_pending */
		2443	inline_speed void
2118	clear_pending (EV_P_ W w)	2444	clear_pending (EV_P_ W w)
2119	{	2445	{
2120	if (w->pending)	2446	if (w->pending)
2121	{	2447	{
2122	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2448	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2123	w->pending = 0;	2449	w->pending = 0;
2124	}	2450	}
2125	}	2451	}
2126		2452
2127	int	2453	int
…		…
2131	int pending = w_->pending;	2457	int pending = w_->pending;
2132		2458
2133	if (expect_true (pending))	2459	if (expect_true (pending))
2134	{	2460	{
2135	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2461	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2462	p->w = (W)&pending_w;
2136	w_->pending = 0;	2463	w_->pending = 0;
2137	p->w = 0;
2138	return p->events;	2464	return p->events;
2139	}	2465	}
2140	else	2466	else
2141	return 0;	2467	return 0;
2142	}	2468	}
2143		2469
2144	void inline_size	2470	inline_size void
2145	pri_adjust (EV_P_ W w)	2471	pri_adjust (EV_P_ W w)
2146	{	2472	{
2147	int pri = w->priority;	2473	int pri = ev_priority (w);
2148	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2474	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2149	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2475	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2150	w->priority = pri;	2476	ev_set_priority (w, pri);
2151	}	2477	}
2152		2478
2153	void inline_speed	2479	inline_speed void
2154	ev_start (EV_P_ W w, int active)	2480	ev_start (EV_P_ W w, int active)
2155	{	2481	{
2156	pri_adjust (EV_A_ w);	2482	pri_adjust (EV_A_ w);
2157	w->active = active;	2483	w->active = active;
2158	ev_ref (EV_A);	2484	ev_ref (EV_A);
2159	}	2485	}
2160		2486
2161	void inline_size	2487	inline_size void
2162	ev_stop (EV_P_ W w)	2488	ev_stop (EV_P_ W w)
2163	{	2489	{
2164	ev_unref (EV_A);	2490	ev_unref (EV_A);
2165	w->active = 0;	2491	w->active = 0;
2166	}	2492	}
…		…
2174		2500
2175	if (expect_false (ev_is_active (w)))	2501	if (expect_false (ev_is_active (w)))
2176	return;	2502	return;
2177		2503
2178	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2504	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2179	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE))));	2505	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2180		2506
2181	EV_FREQUENT_CHECK;	2507	EV_FREQUENT_CHECK;
2182		2508
2183	ev_start (EV_A_ (W)w, 1);	2509	ev_start (EV_A_ (W)w, 1);
2184	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2510	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2185	wlist_add (&anfds[fd].head, (WL)w);	2511	wlist_add (&anfds[fd].head, (WL)w);
2186		2512
2187	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2513	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2188	w->events &= ~EV_IOFDSET;	2514	w->events &= ~EV__IOFDSET;
2189		2515
2190	EV_FREQUENT_CHECK;	2516	EV_FREQUENT_CHECK;
2191	}	2517	}
2192		2518
2193	void noinline	2519	void noinline
…		…
2286	}	2612	}
2287		2613
2288	EV_FREQUENT_CHECK;	2614	EV_FREQUENT_CHECK;
2289	}	2615	}
2290		2616
		2617	ev_tstamp
		2618	ev_timer_remaining (EV_P_ ev_timer *w)
		2619	{
		2620	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2621	}
		2622
2291	#if EV_PERIODIC_ENABLE	2623	#if EV_PERIODIC_ENABLE
2292	void noinline	2624	void noinline
2293	ev_periodic_start (EV_P_ ev_periodic *w)	2625	ev_periodic_start (EV_P_ ev_periodic *w)
2294	{	2626	{
2295	if (expect_false (ev_is_active (w)))	2627	if (expect_false (ev_is_active (w)))
…		…
2362	#endif	2694	#endif
2363		2695
2364	void noinline	2696	void noinline
2365	ev_signal_start (EV_P_ ev_signal *w)	2697	ev_signal_start (EV_P_ ev_signal *w)
2366	{	2698	{
2367	#if EV_MULTIPLICITY
2368	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2369	#endif
2370	if (expect_false (ev_is_active (w)))	2699	if (expect_false (ev_is_active (w)))
2371	return;	2700	return;
2372		2701
2373	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2702	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2374		2703
2375	evpipe_init (EV_A);	2704	#if EV_MULTIPLICITY
		2705	assert (("libev: a signal must not be attached to two different loops",
		2706	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2376		2707
2377	EV_FREQUENT_CHECK;	2708	signals [w->signum - 1].loop = EV_A;
		2709	#endif
2378		2710
		2711	EV_FREQUENT_CHECK;
		2712
		2713	#if EV_USE_SIGNALFD
		2714	if (sigfd == -2)
2379	{	2715	{
2380	#ifndef _WIN32	2716	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2381	sigset_t full, prev;	2717	if (sigfd < 0 && errno == EINVAL)
2382	sigfillset (&full);	2718	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2383	sigprocmask (SIG_SETMASK, &full, &prev);
2384	#endif
2385		2719
2386	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2720	if (sigfd >= 0)
		2721	{
		2722	fd_intern (sigfd); /* doing it twice will not hurt */
2387		2723
2388	#ifndef _WIN32	2724	sigemptyset (&sigfd_set);
2389	sigprocmask (SIG_SETMASK, &prev, 0);	2725
2390	#endif	2726	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2727	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2728	ev_io_start (EV_A_ &sigfd_w);
		2729	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2730	}
2391	}	2731	}
		2732
		2733	if (sigfd >= 0)
		2734	{
		2735	/* TODO: check .head */
		2736	sigaddset (&sigfd_set, w->signum);
		2737	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2738
		2739	signalfd (sigfd, &sigfd_set, 0);
		2740	}
		2741	#endif
2392		2742
2393	ev_start (EV_A_ (W)w, 1);	2743	ev_start (EV_A_ (W)w, 1);
2394	wlist_add (&signals [w->signum - 1].head, (WL)w);	2744	wlist_add (&signals [w->signum - 1].head, (WL)w);
2395		2745
2396	if (!((WL)w)->next)	2746	if (!((WL)w)->next)
		2747	# if EV_USE_SIGNALFD
		2748	if (sigfd < 0) /*TODO*/
		2749	# endif
2397	{	2750	{
2398	#if _WIN32	2751	# if _WIN32
		2752	evpipe_init (EV_A);
		2753
2399	signal (w->signum, ev_sighandler);	2754	signal (w->signum, ev_sighandler);
2400	#else	2755	# else
2401	struct sigaction sa;	2756	struct sigaction sa;
		2757
		2758	evpipe_init (EV_A);
		2759
2402	sa.sa_handler = ev_sighandler;	2760	sa.sa_handler = ev_sighandler;
2403	sigfillset (&sa.sa_mask);	2761	sigfillset (&sa.sa_mask);
2404	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2762	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2405	sigaction (w->signum, &sa, 0);	2763	sigaction (w->signum, &sa, 0);
		2764
		2765	sigemptyset (&sa.sa_mask);
		2766	sigaddset (&sa.sa_mask, w->signum);
		2767	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2406	#endif	2768	#endif
2407	}	2769	}
2408		2770
2409	EV_FREQUENT_CHECK;	2771	EV_FREQUENT_CHECK;
2410	}	2772	}
2411		2773
2412	void noinline	2774	void noinline
…		…
2420		2782
2421	wlist_del (&signals [w->signum - 1].head, (WL)w);	2783	wlist_del (&signals [w->signum - 1].head, (WL)w);
2422	ev_stop (EV_A_ (W)w);	2784	ev_stop (EV_A_ (W)w);
2423		2785
2424	if (!signals [w->signum - 1].head)	2786	if (!signals [w->signum - 1].head)
		2787	{
		2788	#if EV_MULTIPLICITY
		2789	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2790	#endif
		2791	#if EV_USE_SIGNALFD
		2792	if (sigfd >= 0)
		2793	{
		2794	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2795	sigdelset (&sigfd_set, w->signum);
		2796	signalfd (sigfd, &sigfd_set, 0);
		2797	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2798	/*TODO: maybe unblock signal? */
		2799	}
		2800	else
		2801	#endif
2425	signal (w->signum, SIG_DFL);	2802	signal (w->signum, SIG_DFL);
		2803	}
2426		2804
2427	EV_FREQUENT_CHECK;	2805	EV_FREQUENT_CHECK;
2428	}	2806	}
2429		2807
2430	void	2808	void
…		…
2510	}	2888	}
2511	}	2889	}
2512		2890
2513	if (w->wd >= 0)	2891	if (w->wd >= 0)
2514	{	2892	{
		2893	struct statfs sfs;
		2894
2515	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2895	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2516		2896
2517	/* now local changes will be tracked by inotify, but remote changes won't */	2897	/* now local changes will be tracked by inotify, but remote changes won't */
2518	/* unless the filesystem it known to be local, we therefore still poll */	2898	/* unless the filesystem is known to be local, we therefore still poll */
2519	/* also do poll on <2.6.25, but with normal frequency */	2899	/* also do poll on <2.6.25, but with normal frequency */
2520	struct statfs sfs;
2521		2900
2522	if (fs_2625 && !statfs (w->path, &sfs))	2901	if (fs_2625 && !statfs (w->path, &sfs))
2523	if (sfs.f_type == 0x1373 /* devfs */	2902	if (sfs.f_type == 0x1373 /* devfs */
2524	|| sfs.f_type == 0xEF53 /* ext2/3 */	2903	|| sfs.f_type == 0xEF53 /* ext2/3 */
2525	|| sfs.f_type == 0x3153464a /* jfs */	2904	|| sfs.f_type == 0x3153464a /* jfs */
…		…
2591		2970
2592	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2971	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2593	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2972	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2594	}	2973	}
2595		2974
2596	void inline_size	2975	inline_size void
2597	check_2625 (EV_P)	2976	check_2625 (EV_P)
2598	{	2977	{
2599	/* kernels < 2.6.25 are borked	2978	/* kernels < 2.6.25 are borked
2600	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	2979	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2601	*/	2980	*/
…		…
2614	return;	2993	return;
2615		2994
2616	fs_2625 = 1;	2995	fs_2625 = 1;
2617	}	2996	}
2618		2997
2619	void inline_size	2998	inline_size int
		2999	infy_newfd (void)
		3000	{
		3001	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3002	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3003	if (fd >= 0)
		3004	return fd;
		3005	#endif
		3006	return inotify_init ();
		3007	}
		3008
		3009	inline_size void
2620	infy_init (EV_P)	3010	infy_init (EV_P)
2621	{	3011	{
2622	if (fs_fd != -2)	3012	if (fs_fd != -2)
2623	return;	3013	return;
2624		3014
2625	fs_fd = -1;	3015	fs_fd = -1;
2626		3016
2627	check_2625 (EV_A);	3017	check_2625 (EV_A);
2628		3018
2629	fs_fd = inotify_init ();	3019	fs_fd = infy_newfd ();
2630		3020
2631	if (fs_fd >= 0)	3021	if (fs_fd >= 0)
2632	{	3022	{
		3023	fd_intern (fs_fd);
2633	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3024	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2634	ev_set_priority (&fs_w, EV_MAXPRI);	3025	ev_set_priority (&fs_w, EV_MAXPRI);
2635	ev_io_start (EV_A_ &fs_w);	3026	ev_io_start (EV_A_ &fs_w);
		3027	ev_unref (EV_A);
2636	}	3028	}
2637	}	3029	}
2638		3030
2639	void inline_size	3031	inline_size void
2640	infy_fork (EV_P)	3032	infy_fork (EV_P)
2641	{	3033	{
2642	int slot;	3034	int slot;
2643		3035
2644	if (fs_fd < 0)	3036	if (fs_fd < 0)
2645	return;	3037	return;
2646		3038
		3039	ev_ref (EV_A);
		3040	ev_io_stop (EV_A_ &fs_w);
2647	close (fs_fd);	3041	close (fs_fd);
2648	fs_fd = inotify_init ();	3042	fs_fd = infy_newfd ();
		3043
		3044	if (fs_fd >= 0)
		3045	{
		3046	fd_intern (fs_fd);
		3047	ev_io_set (&fs_w, fs_fd, EV_READ);
		3048	ev_io_start (EV_A_ &fs_w);
		3049	ev_unref (EV_A);
		3050	}
2649		3051
2650	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3052	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2651	{	3053	{
2652	WL w_ = fs_hash [slot].head;	3054	WL w_ = fs_hash [slot].head;
2653	fs_hash [slot].head = 0;	3055	fs_hash [slot].head = 0;
…		…
2910	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3312	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2911	{	3313	{
2912	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3314	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2913		3315
2914	{	3316	{
2915	struct ev_loop *loop = w->other;	3317	EV_P = w->other;
2916		3318
2917	while (fdchangecnt)	3319	while (fdchangecnt)
2918	{	3320	{
2919	fd_reify (EV_A);	3321	fd_reify (EV_A);
2920	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3322	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2928	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));
2929		3331
2930	ev_embed_stop (EV_A_ w);	3332	ev_embed_stop (EV_A_ w);
2931		3333
2932	{	3334	{
2933	struct ev_loop *loop = w->other;	3335	EV_P = w->other;
2934		3336
2935	ev_loop_fork (EV_A);	3337	ev_loop_fork (EV_A);
2936	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3338	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2937	}	3339	}
2938		3340
…		…
2952	{	3354	{
2953	if (expect_false (ev_is_active (w)))	3355	if (expect_false (ev_is_active (w)))
2954	return;	3356	return;
2955		3357
2956	{	3358	{
2957	struct ev_loop *loop = w->other;	3359	EV_P = w->other;
2958	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 ()));
2959	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);
2960	}	3362	}
2961		3363
2962	EV_FREQUENT_CHECK;	3364	EV_FREQUENT_CHECK;
…		…
3074		3476
3075	void	3477	void
3076	ev_async_send (EV_P_ ev_async *w)	3478	ev_async_send (EV_P_ ev_async *w)
3077	{	3479	{
3078	w->sent = 1;	3480	w->sent = 1;
3079	evpipe_write (EV_A_ &gotasync);	3481	evpipe_write (EV_A_ &async_pending);
3080	}	3482	}
3081	#endif	3483	#endif
3082		3484
3083	/*****************************************************************************/	3485	/*****************************************************************************/
3084		3486
…		…
3146	ev_timer_set (&once->to, timeout, 0.);	3548	ev_timer_set (&once->to, timeout, 0.);
3147	ev_timer_start (EV_A_ &once->to);	3549	ev_timer_start (EV_A_ &once->to);
3148	}	3550	}
3149	}	3551	}
3150		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
3151	#if EV_MULTIPLICITY	3661	#if EV_MULTIPLICITY
3152	#include "ev_wrap.h"	3662	#include "ev_wrap.h"
3153	#endif	3663	#endif
3154		3664
3155	#ifdef __cplusplus	3665	#ifdef __cplusplus

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