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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 1.303 by root, Sun Jul 19 01:36:34 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
…		…
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
…		…
193	# define EV_USE_MONOTONIC 0	203	# define EV_USE_MONOTONIC 0
194	# endif	204	# endif
195	#endif	205	#endif
196		206
197	#ifndef EV_USE_REALTIME	207	#ifndef EV_USE_REALTIME
198	# define EV_USE_REALTIME 0	208	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199	#endif	209	#endif
200		210
201	#ifndef EV_USE_NANOSLEEP	211	#ifndef EV_USE_NANOSLEEP
202	# if _POSIX_C_SOURCE >= 199309L	212	# if _POSIX_C_SOURCE >= 199309L
203	# define EV_USE_NANOSLEEP 1	213	# define EV_USE_NANOSLEEP 1
…		…
264	# else	274	# else
265	# define EV_USE_EVENTFD 0	275	# define EV_USE_EVENTFD 0
266	# endif	276	# endif
267	#endif	277	#endif
268		278
		279	#ifndef EV_USE_SIGNALFD
		280	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
		281	# define EV_USE_SIGNALFD 1
		282	# else
		283	# define EV_USE_SIGNALFD 0
		284	# endif
		285	#endif
		286
269	#if 0 /* debugging */	287	#if 0 /* debugging */
270	# define EV_VERIFY 3	288	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	289	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	290	# define EV_HEAP_CACHE_AT 1
273	#endif	291	#endif
…		…
280	# define EV_USE_4HEAP !EV_MINIMAL	298	# define EV_USE_4HEAP !EV_MINIMAL
281	#endif	299	#endif
282		300
283	#ifndef EV_HEAP_CACHE_AT	301	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	302	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		303	#endif
		304
		305	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		306	/* which makes programs even slower. might work on other unices, too. */
		307	#if EV_USE_CLOCK_SYSCALL
		308	# include <syscall.h>
		309	# ifdef SYS_clock_gettime
		310	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		311	# undef EV_USE_MONOTONIC
		312	# define EV_USE_MONOTONIC 1
		313	# else
		314	# undef EV_USE_CLOCK_SYSCALL
		315	# define EV_USE_CLOCK_SYSCALL 0
		316	# endif
285	#endif	317	#endif
286		318
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	319	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
288		320
289	#ifndef CLOCK_MONOTONIC	321	#ifndef CLOCK_MONOTONIC
…		…
320		352
321	#if EV_SELECT_IS_WINSOCKET	353	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	354	# include <winsock.h>
323	#endif	355	#endif
324		356
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	357	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	358	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	359	# include <stdint.h>
		360	# ifndef EFD_NONBLOCK
		361	# define EFD_NONBLOCK O_NONBLOCK
		362	# endif
		363	# ifndef EFD_CLOEXEC
		364	# define EFD_CLOEXEC O_CLOEXEC
		365	# endif
337	# ifdef __cplusplus	366	# ifdef __cplusplus
338	extern "C" {	367	extern "C" {
339	# endif	368	# endif
340	int eventfd (unsigned int initval, int flags);	369	int eventfd (unsigned int initval, int flags);
341	# ifdef __cplusplus	370	# ifdef __cplusplus
342	}	371	}
343	# endif	372	# endif
		373	#endif
		374
		375	#if EV_USE_SIGNALFD
		376	# include <sys/signalfd.h>
344	#endif	377	#endif
345		378
346	/**/	379	/**/
347		380
348	#if EV_VERIFY >= 3	381	#if EV_VERIFY >= 3
…		…
384	# define inline_speed static noinline	417	# define inline_speed static noinline
385	#else	418	#else
386	# define inline_speed static inline	419	# define inline_speed static inline
387	#endif	420	#endif
388		421
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	422	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		423
		424	#if EV_MINPRI == EV_MAXPRI
		425	# define ABSPRI(w) (((W)w), 0)
		426	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	427	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		428	#endif
391		429
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	430	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	431	#define EMPTY2(a,b) /* used to suppress some warnings */
394		432
395	typedef ev_watcher *W;	433	typedef ev_watcher *W;
…		…
397	typedef ev_watcher_time *WT;	435	typedef ev_watcher_time *WT;
398		436
399	#define ev_active(w) ((W)(w))->active	437	#define ev_active(w) ((W)(w))->active
400	#define ev_at(w) ((WT)(w))->at	438	#define ev_at(w) ((WT)(w))->at
401		439
402	#if EV_USE_MONOTONIC	440	#if EV_USE_REALTIME
403	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	441	/* 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 */	442	/* giving it a reasonably high chance of working on typical architetcures */
		443	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		444	#endif
		445
		446	#if EV_USE_MONOTONIC
405	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	447	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
406	#endif	448	#endif
407		449
408	#ifdef _WIN32	450	#ifdef _WIN32
409	# include "ev_win32.c"	451	# include "ev_win32.c"
…		…
474	#define ev_malloc(size) ev_realloc (0, (size))	516	#define ev_malloc(size) ev_realloc (0, (size))
475	#define ev_free(ptr) ev_realloc ((ptr), 0)	517	#define ev_free(ptr) ev_realloc ((ptr), 0)
476		518
477	/*****************************************************************************/	519	/*****************************************************************************/
478		520
		521	/* set in reify when reification needed */
		522	#define EV_ANFD_REIFY 1
		523
		524	/* file descriptor info structure */
479	typedef struct	525	typedef struct
480	{	526	{
481	WL head;	527	WL head;
482	unsigned char events;	528	unsigned char events; /* the events watched for */
483	unsigned char reify;	529	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 */	530	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
485	unsigned char unused;	531	unsigned char unused;
486	#if EV_USE_EPOLL	532	#if EV_USE_EPOLL
487	unsigned int egen; /* generation counter to counter epoll bugs */	533	unsigned int egen; /* generation counter to counter epoll bugs */
488	#endif	534	#endif
489	#if EV_SELECT_IS_WINSOCKET	535	#if EV_SELECT_IS_WINSOCKET
490	SOCKET handle;	536	SOCKET handle;
491	#endif	537	#endif
492	} ANFD;	538	} ANFD;
493		539
		540	/* stores the pending event set for a given watcher */
494	typedef struct	541	typedef struct
495	{	542	{
496	W w;	543	W w;
497	int events;	544	int events; /* the pending event set for the given watcher */
498	} ANPENDING;	545	} ANPENDING;
499		546
500	#if EV_USE_INOTIFY	547	#if EV_USE_INOTIFY
501	/* hash table entry per inotify-id */	548	/* hash table entry per inotify-id */
502	typedef struct	549	typedef struct
…		…
505	} ANFS;	552	} ANFS;
506	#endif	553	#endif
507		554
508	/* Heap Entry */	555	/* Heap Entry */
509	#if EV_HEAP_CACHE_AT	556	#if EV_HEAP_CACHE_AT
		557	/* a heap element */
510	typedef struct {	558	typedef struct {
511	ev_tstamp at;	559	ev_tstamp at;
512	WT w;	560	WT w;
513	} ANHE;	561	} ANHE;
514		562
515	#define ANHE_w(he) (he).w /* access watcher, read-write */	563	#define ANHE_w(he) (he).w /* access watcher, read-write */
516	#define ANHE_at(he) (he).at /* access cached at, read-only */	564	#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 */	565	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
518	#else	566	#else
		567	/* a heap element */
519	typedef WT ANHE;	568	typedef WT ANHE;
520		569
521	#define ANHE_w(he) (he)	570	#define ANHE_w(he) (he)
522	#define ANHE_at(he) (he)->at	571	#define ANHE_at(he) (he)->at
523	#define ANHE_at_cache(he)	572	#define ANHE_at_cache(he)
…		…
547		596
548	static int ev_default_loop_ptr;	597	static int ev_default_loop_ptr;
549		598
550	#endif	599	#endif
551		600
		601	#if EV_MINIMAL < 2
		602	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		603	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		604	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		605	#else
		606	# define EV_RELEASE_CB (void)0
		607	# define EV_ACQUIRE_CB (void)0
		608	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		609	#endif
		610
		611	#define EVUNLOOP_RECURSE 0x80
		612
552	/*****************************************************************************/	613	/*****************************************************************************/
553		614
		615	#ifndef EV_HAVE_EV_TIME
554	ev_tstamp	616	ev_tstamp
555	ev_time (void)	617	ev_time (void)
556	{	618	{
557	#if EV_USE_REALTIME	619	#if EV_USE_REALTIME
		620	if (expect_true (have_realtime))
		621	{
558	struct timespec ts;	622	struct timespec ts;
559	clock_gettime (CLOCK_REALTIME, &ts);	623	clock_gettime (CLOCK_REALTIME, &ts);
560	return ts.tv_sec + ts.tv_nsec * 1e-9;	624	return ts.tv_sec + ts.tv_nsec * 1e-9;
561	#else	625	}
		626	#endif
		627
562	struct timeval tv;	628	struct timeval tv;
563	gettimeofday (&tv, 0);	629	gettimeofday (&tv, 0);
564	return tv.tv_sec + tv.tv_usec * 1e-6;	630	return tv.tv_sec + tv.tv_usec * 1e-6;
565	#endif
566	}	631	}
		632	#endif
567		633
568	ev_tstamp inline_size	634	inline_size ev_tstamp
569	get_clock (void)	635	get_clock (void)
570	{	636	{
571	#if EV_USE_MONOTONIC	637	#if EV_USE_MONOTONIC
572	if (expect_true (have_monotonic))	638	if (expect_true (have_monotonic))
573	{	639	{
…		…
607		673
608	tv.tv_sec = (time_t)delay;	674	tv.tv_sec = (time_t)delay;
609	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	675	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
610		676
611	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	677	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
612	/* somehting nto guaranteed by newer posix versions, but guaranteed */	678	/* something not guaranteed by newer posix versions, but guaranteed */
613	/* by older ones */	679	/* by older ones */
614	select (0, 0, 0, 0, &tv);	680	select (0, 0, 0, 0, &tv);
615	#endif	681	#endif
616	}	682	}
617	}	683	}
618		684
619	/*****************************************************************************/	685	/*****************************************************************************/
620		686
621	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	687	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
622		688
623	int inline_size	689	/* find a suitable new size for the given array, */
		690	/* hopefully by rounding to a ncie-to-malloc size */
		691	inline_size int
624	array_nextsize (int elem, int cur, int cnt)	692	array_nextsize (int elem, int cur, int cnt)
625	{	693	{
626	int ncur = cur + 1;	694	int ncur = cur + 1;
627		695
628	do	696	do
…		…
669	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	737	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
670	}	738	}
671	#endif	739	#endif
672		740
673	#define array_free(stem, idx) \	741	#define array_free(stem, idx) \
674	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	742	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
675		743
676	/*****************************************************************************/	744	/*****************************************************************************/
		745
		746	/* dummy callback for pending events */
		747	static void noinline
		748	pendingcb (EV_P_ ev_prepare *w, int revents)
		749	{
		750	}
677		751
678	void noinline	752	void noinline
679	ev_feed_event (EV_P_ void *w, int revents)	753	ev_feed_event (EV_P_ void *w, int revents)
680	{	754	{
681	W w_ = (W)w;	755	W w_ = (W)w;
…		…
690	pendings [pri][w_->pending - 1].w = w_;	764	pendings [pri][w_->pending - 1].w = w_;
691	pendings [pri][w_->pending - 1].events = revents;	765	pendings [pri][w_->pending - 1].events = revents;
692	}	766	}
693	}	767	}
694		768
695	void inline_speed	769	inline_speed void
		770	feed_reverse (EV_P_ W w)
		771	{
		772	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		773	rfeeds [rfeedcnt++] = w;
		774	}
		775
		776	inline_size void
		777	feed_reverse_done (EV_P_ int revents)
		778	{
		779	do
		780	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		781	while (rfeedcnt);
		782	}
		783
		784	inline_speed void
696	queue_events (EV_P_ W *events, int eventcnt, int type)	785	queue_events (EV_P_ W *events, int eventcnt, int type)
697	{	786	{
698	int i;	787	int i;
699		788
700	for (i = 0; i < eventcnt; ++i)	789	for (i = 0; i < eventcnt; ++i)
701	ev_feed_event (EV_A_ events [i], type);	790	ev_feed_event (EV_A_ events [i], type);
702	}	791	}
703		792
704	/*****************************************************************************/	793	/*****************************************************************************/
705		794
706	void inline_speed	795	inline_speed void
707	fd_event (EV_P_ int fd, int revents)	796	fd_event_nc (EV_P_ int fd, int revents)
708	{	797	{
709	ANFD *anfd = anfds + fd;	798	ANFD *anfd = anfds + fd;
710	ev_io *w;	799	ev_io *w;
711		800
712	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	801	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
716	if (ev)	805	if (ev)
717	ev_feed_event (EV_A_ (W)w, ev);	806	ev_feed_event (EV_A_ (W)w, ev);
718	}	807	}
719	}	808	}
720		809
		810	/* do not submit kernel events for fds that have reify set */
		811	/* because that means they changed while we were polling for new events */
		812	inline_speed void
		813	fd_event (EV_P_ int fd, int revents)
		814	{
		815	ANFD *anfd = anfds + fd;
		816
		817	if (expect_true (!anfd->reify))
		818	fd_event_nc (EV_A_ fd, revents);
		819	}
		820
721	void	821	void
722	ev_feed_fd_event (EV_P_ int fd, int revents)	822	ev_feed_fd_event (EV_P_ int fd, int revents)
723	{	823	{
724	if (fd >= 0 && fd < anfdmax)	824	if (fd >= 0 && fd < anfdmax)
725	fd_event (EV_A_ fd, revents);	825	fd_event_nc (EV_A_ fd, revents);
726	}	826	}
727		827
728	void inline_size	828	/* make sure the external fd watch events are in-sync */
		829	/* with the kernel/libev internal state */
		830	inline_size void
729	fd_reify (EV_P)	831	fd_reify (EV_P)
730	{	832	{
731	int i;	833	int i;
732		834
733	for (i = 0; i < fdchangecnt; ++i)	835	for (i = 0; i < fdchangecnt; ++i)
…		…
759	unsigned char o_reify = anfd->reify;	861	unsigned char o_reify = anfd->reify;
760		862
761	anfd->reify = 0;	863	anfd->reify = 0;
762	anfd->events = events;	864	anfd->events = events;
763		865
764	if (o_events != events || o_reify & EV_IOFDSET)	866	if (o_events != events || o_reify & EV__IOFDSET)
765	backend_modify (EV_A_ fd, o_events, events);	867	backend_modify (EV_A_ fd, o_events, events);
766	}	868	}
767	}	869	}
768		870
769	fdchangecnt = 0;	871	fdchangecnt = 0;
770	}	872	}
771		873
772	void inline_size	874	/* something about the given fd changed */
		875	inline_size void
773	fd_change (EV_P_ int fd, int flags)	876	fd_change (EV_P_ int fd, int flags)
774	{	877	{
775	unsigned char reify = anfds [fd].reify;	878	unsigned char reify = anfds [fd].reify;
776	anfds [fd].reify |= flags;	879	anfds [fd].reify |= flags;
777		880
…		…
781	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	884	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
782	fdchanges [fdchangecnt - 1] = fd;	885	fdchanges [fdchangecnt - 1] = fd;
783	}	886	}
784	}	887	}
785		888
786	void inline_speed	889	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		890	inline_speed void
787	fd_kill (EV_P_ int fd)	891	fd_kill (EV_P_ int fd)
788	{	892	{
789	ev_io *w;	893	ev_io *w;
790		894
791	while ((w = (ev_io *)anfds [fd].head))	895	while ((w = (ev_io *)anfds [fd].head))
…		…
793	ev_io_stop (EV_A_ w);	897	ev_io_stop (EV_A_ w);
794	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	898	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
795	}	899	}
796	}	900	}
797		901
798	int inline_size	902	/* check whether the given fd is atcually valid, for error recovery */
		903	inline_size int
799	fd_valid (int fd)	904	fd_valid (int fd)
800	{	905	{
801	#ifdef _WIN32	906	#ifdef _WIN32
802	return _get_osfhandle (fd) != -1;	907	return _get_osfhandle (fd) != -1;
803	#else	908	#else
…		…
840	for (fd = 0; fd < anfdmax; ++fd)	945	for (fd = 0; fd < anfdmax; ++fd)
841	if (anfds [fd].events)	946	if (anfds [fd].events)
842	{	947	{
843	anfds [fd].events = 0;	948	anfds [fd].events = 0;
844	anfds [fd].emask = 0;	949	anfds [fd].emask = 0;
845	fd_change (EV_A_ fd, EV_IOFDSET | 1);	950	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
846	}	951	}
847	}	952	}
848		953
849	/*****************************************************************************/	954	/*****************************************************************************/
850		955
…		…
866	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	971	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
867	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	972	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
868	#define UPHEAP_DONE(p,k) ((p) == (k))	973	#define UPHEAP_DONE(p,k) ((p) == (k))
869		974
870	/* away from the root */	975	/* away from the root */
871	void inline_speed	976	inline_speed void
872	downheap (ANHE *heap, int N, int k)	977	downheap (ANHE *heap, int N, int k)
873	{	978	{
874	ANHE he = heap [k];	979	ANHE he = heap [k];
875	ANHE *E = heap + N + HEAP0;	980	ANHE *E = heap + N + HEAP0;
876		981
…		…
916	#define HEAP0 1	1021	#define HEAP0 1
917	#define HPARENT(k) ((k) >> 1)	1022	#define HPARENT(k) ((k) >> 1)
918	#define UPHEAP_DONE(p,k) (!(p))	1023	#define UPHEAP_DONE(p,k) (!(p))
919		1024
920	/* away from the root */	1025	/* away from the root */
921	void inline_speed	1026	inline_speed void
922	downheap (ANHE *heap, int N, int k)	1027	downheap (ANHE *heap, int N, int k)
923	{	1028	{
924	ANHE he = heap [k];	1029	ANHE he = heap [k];
925		1030
926	for (;;)	1031	for (;;)
…		…
946	ev_active (ANHE_w (he)) = k;	1051	ev_active (ANHE_w (he)) = k;
947	}	1052	}
948	#endif	1053	#endif
949		1054
950	/* towards the root */	1055	/* towards the root */
951	void inline_speed	1056	inline_speed void
952	upheap (ANHE *heap, int k)	1057	upheap (ANHE *heap, int k)
953	{	1058	{
954	ANHE he = heap [k];	1059	ANHE he = heap [k];
955		1060
956	for (;;)	1061	for (;;)
…		…
967		1072
968	heap [k] = he;	1073	heap [k] = he;
969	ev_active (ANHE_w (he)) = k;	1074	ev_active (ANHE_w (he)) = k;
970	}	1075	}
971		1076
972	void inline_size	1077	/* move an element suitably so it is in a correct place */
		1078	inline_size void
973	adjustheap (ANHE *heap, int N, int k)	1079	adjustheap (ANHE *heap, int N, int k)
974	{	1080	{
975	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1081	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
976	upheap (heap, k);	1082	upheap (heap, k);
977	else	1083	else
978	downheap (heap, N, k);	1084	downheap (heap, N, k);
979	}	1085	}
980		1086
981	/* rebuild the heap: this function is used only once and executed rarely */	1087	/* rebuild the heap: this function is used only once and executed rarely */
982	void inline_size	1088	inline_size void
983	reheap (ANHE *heap, int N)	1089	reheap (ANHE *heap, int N)
984	{	1090	{
985	int i;	1091	int i;
986		1092
987	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1093	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
990	upheap (heap, i + HEAP0);	1096	upheap (heap, i + HEAP0);
991	}	1097	}
992		1098
993	/*****************************************************************************/	1099	/*****************************************************************************/
994		1100
		1101	/* associate signal watchers to a signal signal */
995	typedef struct	1102	typedef struct
996	{	1103	{
997	WL head;	1104	WL head;
998	EV_ATOMIC_T gotsig;	1105	EV_ATOMIC_T gotsig;
999	} ANSIG;	1106	} ANSIG;
…		…
1003		1110
1004	static EV_ATOMIC_T gotsig;	1111	static EV_ATOMIC_T gotsig;
1005		1112
1006	/*****************************************************************************/	1113	/*****************************************************************************/
1007		1114
1008	void inline_speed	1115	/* used to prepare libev internal fd's */
		1116	/* this is not fork-safe */
		1117	inline_speed void
1009	fd_intern (int fd)	1118	fd_intern (int fd)
1010	{	1119	{
1011	#ifdef _WIN32	1120	#ifdef _WIN32
1012	unsigned long arg = 1;	1121	unsigned long arg = 1;
1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1122	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1018	}	1127	}
1019		1128
1020	static void noinline	1129	static void noinline
1021	evpipe_init (EV_P)	1130	evpipe_init (EV_P)
1022	{	1131	{
1023	if (!ev_is_active (&pipeev))	1132	if (!ev_is_active (&pipe_w))
1024	{	1133	{
1025	#if EV_USE_EVENTFD	1134	#if EV_USE_EVENTFD
		1135	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1136	if (evfd < 0 && errno == EINVAL)
1026	if ((evfd = eventfd (0, 0)) >= 0)	1137	evfd = eventfd (0, 0);
		1138
		1139	if (evfd >= 0)
1027	{	1140	{
1028	evpipe [0] = -1;	1141	evpipe [0] = -1;
1029	fd_intern (evfd);	1142	fd_intern (evfd); /* doing it twice doesn't hurt */
1030	ev_io_set (&pipeev, evfd, EV_READ);	1143	ev_io_set (&pipe_w, evfd, EV_READ);
1031	}	1144	}
1032	else	1145	else
1033	#endif	1146	#endif
1034	{	1147	{
1035	while (pipe (evpipe))	1148	while (pipe (evpipe))
1036	ev_syserr ("(libev) error creating signal/async pipe");	1149	ev_syserr ("(libev) error creating signal/async pipe");
1037		1150
1038	fd_intern (evpipe [0]);	1151	fd_intern (evpipe [0]);
1039	fd_intern (evpipe [1]);	1152	fd_intern (evpipe [1]);
1040	ev_io_set (&pipeev, evpipe [0], EV_READ);	1153	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1041	}	1154	}
1042		1155
1043	ev_io_start (EV_A_ &pipeev);	1156	ev_io_start (EV_A_ &pipe_w);
1044	ev_unref (EV_A); /* watcher should not keep loop alive */	1157	ev_unref (EV_A); /* watcher should not keep loop alive */
1045	}	1158	}
1046	}	1159	}
1047		1160
1048	void inline_size	1161	inline_size void
1049	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1162	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1050	{	1163	{
1051	if (!*flag)	1164	if (!*flag)
1052	{	1165	{
1053	int old_errno = errno; /* save errno because write might clobber it */	1166	int old_errno = errno; /* save errno because write might clobber it */
…		…
1066		1179
1067	errno = old_errno;	1180	errno = old_errno;
1068	}	1181	}
1069	}	1182	}
1070		1183
		1184	/* called whenever the libev signal pipe */
		1185	/* got some events (signal, async) */
1071	static void	1186	static void
1072	pipecb (EV_P_ ev_io *iow, int revents)	1187	pipecb (EV_P_ ev_io *iow, int revents)
1073	{	1188	{
1074	#if EV_USE_EVENTFD	1189	#if EV_USE_EVENTFD
1075	if (evfd >= 0)	1190	if (evfd >= 0)
…		…
1145		1260
1146	for (w = signals [signum].head; w; w = w->next)	1261	for (w = signals [signum].head; w; w = w->next)
1147	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1262	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1148	}	1263	}
1149		1264
		1265	#if EV_USE_SIGNALFD
		1266	static void
		1267	sigfdcb (EV_P_ ev_io *iow, int revents)
		1268	{
		1269	struct signalfd_siginfo si[4], *sip;
		1270
		1271	for (;;)
		1272	{
		1273	ssize_t res = read (sigfd, si, sizeof (si));
		1274
		1275	/* not ISO-C, as res might be -1, but works with SuS */
		1276	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1277	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1278
		1279	if (res < (ssize_t)sizeof (si))
		1280	break;
		1281	}
		1282	}
		1283	#endif
		1284
1150	/*****************************************************************************/	1285	/*****************************************************************************/
1151		1286
1152	static WL childs [EV_PID_HASHSIZE];	1287	static WL childs [EV_PID_HASHSIZE];
1153		1288
1154	#ifndef _WIN32	1289	#ifndef _WIN32
…		…
1157		1292
1158	#ifndef WIFCONTINUED	1293	#ifndef WIFCONTINUED
1159	# define WIFCONTINUED(status) 0	1294	# define WIFCONTINUED(status) 0
1160	#endif	1295	#endif
1161		1296
1162	void inline_speed	1297	/* handle a single child status event */
		1298	inline_speed void
1163	child_reap (EV_P_ int chain, int pid, int status)	1299	child_reap (EV_P_ int chain, int pid, int status)
1164	{	1300	{
1165	ev_child *w;	1301	ev_child *w;
1166	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1302	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1167		1303
…		…
1180		1316
1181	#ifndef WCONTINUED	1317	#ifndef WCONTINUED
1182	# define WCONTINUED 0	1318	# define WCONTINUED 0
1183	#endif	1319	#endif
1184		1320
		1321	/* called on sigchld etc., calls waitpid */
1185	static void	1322	static void
1186	childcb (EV_P_ ev_signal *sw, int revents)	1323	childcb (EV_P_ ev_signal *sw, int revents)
1187	{	1324	{
1188	int pid, status;	1325	int pid, status;
1189		1326
…		…
1296	ev_backend (EV_P)	1433	ev_backend (EV_P)
1297	{	1434	{
1298	return backend;	1435	return backend;
1299	}	1436	}
1300		1437
		1438	#if EV_MINIMAL < 2
1301	unsigned int	1439	unsigned int
1302	ev_loop_count (EV_P)	1440	ev_loop_count (EV_P)
1303	{	1441	{
1304	return loop_count;	1442	return loop_count;
1305	}	1443	}
1306		1444
		1445	unsigned int
		1446	ev_loop_depth (EV_P)
		1447	{
		1448	return loop_depth;
		1449	}
		1450
1307	void	1451	void
1308	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1452	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1309	{	1453	{
1310	io_blocktime = interval;	1454	io_blocktime = interval;
1311	}	1455	}
…		…
1314	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1458	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1315	{	1459	{
1316	timeout_blocktime = interval;	1460	timeout_blocktime = interval;
1317	}	1461	}
1318		1462
		1463	void
		1464	ev_set_userdata (EV_P_ void *data)
		1465	{
		1466	userdata = data;
		1467	}
		1468
		1469	void *
		1470	ev_userdata (EV_P)
		1471	{
		1472	return userdata;
		1473	}
		1474
		1475	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1476	{
		1477	invoke_cb = invoke_pending_cb;
		1478	}
		1479
		1480	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1481	{
		1482	release_cb = release;
		1483	acquire_cb = acquire;
		1484	}
		1485	#endif
		1486
		1487	/* initialise a loop structure, must be zero-initialised */
1319	static void noinline	1488	static void noinline
1320	loop_init (EV_P_ unsigned int flags)	1489	loop_init (EV_P_ unsigned int flags)
1321	{	1490	{
1322	if (!backend)	1491	if (!backend)
1323	{	1492	{
		1493	#if EV_USE_REALTIME
		1494	if (!have_realtime)
		1495	{
		1496	struct timespec ts;
		1497
		1498	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1499	have_realtime = 1;
		1500	}
		1501	#endif
		1502
1324	#if EV_USE_MONOTONIC	1503	#if EV_USE_MONOTONIC
		1504	if (!have_monotonic)
1325	{	1505	{
1326	struct timespec ts;	1506	struct timespec ts;
		1507
1327	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1508	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1328	have_monotonic = 1;	1509	have_monotonic = 1;
1329	}	1510	}
1330	#endif	1511	#endif
1331		1512
1332	ev_rt_now = ev_time ();	1513	ev_rt_now = ev_time ();
1333	mn_now = get_clock ();	1514	mn_now = get_clock ();
1334	now_floor = mn_now;	1515	now_floor = mn_now;
1335	rtmn_diff = ev_rt_now - mn_now;	1516	rtmn_diff = ev_rt_now - mn_now;
		1517	#if EV_MINIMAL < 2
		1518	invoke_cb = ev_invoke_pending;
		1519	#endif
1336		1520
1337	io_blocktime = 0.;	1521	io_blocktime = 0.;
1338	timeout_blocktime = 0.;	1522	timeout_blocktime = 0.;
1339	backend = 0;	1523	backend = 0;
1340	backend_fd = -1;	1524	backend_fd = -1;
1341	gotasync = 0;	1525	gotasync = 0;
1342	#if EV_USE_INOTIFY	1526	#if EV_USE_INOTIFY
1343	fs_fd = -2;	1527	fs_fd = -2;
1344	#endif	1528	#endif
		1529	#if EV_USE_SIGNALFD
		1530	sigfd = -2;
		1531	#endif
1345		1532
1346	/* pid check not overridable via env */	1533	/* pid check not overridable via env */
1347	#ifndef _WIN32	1534	#ifndef _WIN32
1348	if (flags & EVFLAG_FORKCHECK)	1535	if (flags & EVFLAG_FORKCHECK)
1349	curpid = getpid ();	1536	curpid = getpid ();
…		…
1371	#endif	1558	#endif
1372	#if EV_USE_SELECT	1559	#if EV_USE_SELECT
1373	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1560	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1374	#endif	1561	#endif
1375		1562
		1563	ev_prepare_init (&pending_w, pendingcb);
		1564
1376	ev_init (&pipeev, pipecb);	1565	ev_init (&pipe_w, pipecb);
1377	ev_set_priority (&pipeev, EV_MAXPRI);	1566	ev_set_priority (&pipe_w, EV_MAXPRI);
1378	}	1567	}
1379	}	1568	}
1380		1569
		1570	/* free up a loop structure */
1381	static void noinline	1571	static void noinline
1382	loop_destroy (EV_P)	1572	loop_destroy (EV_P)
1383	{	1573	{
1384	int i;	1574	int i;
1385		1575
1386	if (ev_is_active (&pipeev))	1576	if (ev_is_active (&pipe_w))
1387	{	1577	{
1388	ev_ref (EV_A); /* signal watcher */	1578	/*ev_ref (EV_A);*/
1389	ev_io_stop (EV_A_ &pipeev);	1579	/*ev_io_stop (EV_A_ &pipe_w);*/
1390		1580
1391	#if EV_USE_EVENTFD	1581	#if EV_USE_EVENTFD
1392	if (evfd >= 0)	1582	if (evfd >= 0)
1393	close (evfd);	1583	close (evfd);
1394	#endif	1584	#endif
…		…
1398	close (evpipe [0]);	1588	close (evpipe [0]);
1399	close (evpipe [1]);	1589	close (evpipe [1]);
1400	}	1590	}
1401	}	1591	}
1402		1592
		1593	#if EV_USE_SIGNALFD
		1594	if (ev_is_active (&sigfd_w))
		1595	{
		1596	/*ev_ref (EV_A);*/
		1597	/*ev_io_stop (EV_A_ &sigfd_w);*/
		1598
		1599	close (sigfd);
		1600	}
		1601	#endif
		1602
1403	#if EV_USE_INOTIFY	1603	#if EV_USE_INOTIFY
1404	if (fs_fd >= 0)	1604	if (fs_fd >= 0)
1405	close (fs_fd);	1605	close (fs_fd);
1406	#endif	1606	#endif
1407		1607
…		…
1433	}	1633	}
1434		1634
1435	ev_free (anfds); anfdmax = 0;	1635	ev_free (anfds); anfdmax = 0;
1436		1636
1437	/* have to use the microsoft-never-gets-it-right macro */	1637	/* have to use the microsoft-never-gets-it-right macro */
		1638	array_free (rfeed, EMPTY);
1438	array_free (fdchange, EMPTY);	1639	array_free (fdchange, EMPTY);
1439	array_free (timer, EMPTY);	1640	array_free (timer, EMPTY);
1440	#if EV_PERIODIC_ENABLE	1641	#if EV_PERIODIC_ENABLE
1441	array_free (periodic, EMPTY);	1642	array_free (periodic, EMPTY);
1442	#endif	1643	#endif
…		…
1451		1652
1452	backend = 0;	1653	backend = 0;
1453	}	1654	}
1454		1655
1455	#if EV_USE_INOTIFY	1656	#if EV_USE_INOTIFY
1456	void inline_size infy_fork (EV_P);	1657	inline_size void infy_fork (EV_P);
1457	#endif	1658	#endif
1458		1659
1459	void inline_size	1660	inline_size void
1460	loop_fork (EV_P)	1661	loop_fork (EV_P)
1461	{	1662	{
1462	#if EV_USE_PORT	1663	#if EV_USE_PORT
1463	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1664	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1464	#endif	1665	#endif
…		…
1470	#endif	1671	#endif
1471	#if EV_USE_INOTIFY	1672	#if EV_USE_INOTIFY
1472	infy_fork (EV_A);	1673	infy_fork (EV_A);
1473	#endif	1674	#endif
1474		1675
1475	if (ev_is_active (&pipeev))	1676	if (ev_is_active (&pipe_w))
1476	{	1677	{
1477	/* this "locks" the handlers against writing to the pipe */	1678	/* this "locks" the handlers against writing to the pipe */
1478	/* while we modify the fd vars */	1679	/* while we modify the fd vars */
1479	gotsig = 1;	1680	gotsig = 1;
1480	#if EV_ASYNC_ENABLE	1681	#if EV_ASYNC_ENABLE
1481	gotasync = 1;	1682	gotasync = 1;
1482	#endif	1683	#endif
1483		1684
1484	ev_ref (EV_A);	1685	ev_ref (EV_A);
1485	ev_io_stop (EV_A_ &pipeev);	1686	ev_io_stop (EV_A_ &pipe_w);
1486		1687
1487	#if EV_USE_EVENTFD	1688	#if EV_USE_EVENTFD
1488	if (evfd >= 0)	1689	if (evfd >= 0)
1489	close (evfd);	1690	close (evfd);
1490	#endif	1691	#endif
…		…
1495	close (evpipe [1]);	1696	close (evpipe [1]);
1496	}	1697	}
1497		1698
1498	evpipe_init (EV_A);	1699	evpipe_init (EV_A);
1499	/* now iterate over everything, in case we missed something */	1700	/* now iterate over everything, in case we missed something */
1500	pipecb (EV_A_ &pipeev, EV_READ);	1701	pipecb (EV_A_ &pipe_w, EV_READ);
1501	}	1702	}
1502		1703
1503	postfork = 0;	1704	postfork = 0;
1504	}	1705	}
1505		1706
…		…
1509	ev_loop_new (unsigned int flags)	1710	ev_loop_new (unsigned int flags)
1510	{	1711	{
1511	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1712	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1512		1713
1513	memset (loop, 0, sizeof (struct ev_loop));	1714	memset (loop, 0, sizeof (struct ev_loop));
1514
1515	loop_init (EV_A_ flags);	1715	loop_init (EV_A_ flags);
1516		1716
1517	if (ev_backend (EV_A))	1717	if (ev_backend (EV_A))
1518	return loop;	1718	return loop;
1519		1719
…		…
1530	void	1730	void
1531	ev_loop_fork (EV_P)	1731	ev_loop_fork (EV_P)
1532	{	1732	{
1533	postfork = 1; /* must be in line with ev_default_fork */	1733	postfork = 1; /* must be in line with ev_default_fork */
1534	}	1734	}
		1735	#endif /* multiplicity */
1535		1736
1536	#if EV_VERIFY	1737	#if EV_VERIFY
1537	static void noinline	1738	static void noinline
1538	verify_watcher (EV_P_ W w)	1739	verify_watcher (EV_P_ W w)
1539	{	1740	{
…		…
1567	verify_watcher (EV_A_ ws [cnt]);	1768	verify_watcher (EV_A_ ws [cnt]);
1568	}	1769	}
1569	}	1770	}
1570	#endif	1771	#endif
1571		1772
		1773	#if EV_MINIMAL < 2
1572	void	1774	void
1573	ev_loop_verify (EV_P)	1775	ev_loop_verify (EV_P)
1574	{	1776	{
1575	#if EV_VERIFY	1777	#if EV_VERIFY
1576	int i;	1778	int i;
…		…
1629	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1831	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)	1832	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1631	# endif	1833	# endif
1632	#endif	1834	#endif
1633	}	1835	}
1634		1836	#endif
1635	#endif /* multiplicity */
1636		1837
1637	#if EV_MULTIPLICITY	1838	#if EV_MULTIPLICITY
1638	struct ev_loop *	1839	struct ev_loop *
1639	ev_default_loop_init (unsigned int flags)	1840	ev_default_loop_init (unsigned int flags)
1640	#else	1841	#else
…		…
1701	ev_invoke (EV_P_ void *w, int revents)	1902	ev_invoke (EV_P_ void *w, int revents)
1702	{	1903	{
1703	EV_CB_INVOKE ((W)w, revents);	1904	EV_CB_INVOKE ((W)w, revents);
1704	}	1905	}
1705		1906
1706	void inline_speed	1907	unsigned int
1707	call_pending (EV_P)	1908	ev_pending_count (EV_P)
		1909	{
		1910	int pri;
		1911	unsigned int count = 0;
		1912
		1913	for (pri = NUMPRI; pri--; )
		1914	count += pendingcnt [pri];
		1915
		1916	return count;
		1917	}
		1918
		1919	void noinline
		1920	ev_invoke_pending (EV_P)
1708	{	1921	{
1709	int pri;	1922	int pri;
1710		1923
1711	for (pri = NUMPRI; pri--; )	1924	for (pri = NUMPRI; pri--; )
1712	while (pendingcnt [pri])	1925	while (pendingcnt [pri])
1713	{	1926	{
1714	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1927	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1715		1928
1716	if (expect_true (p->w))
1717	{
1718	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	1929	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1930	/* ^ this is no longer true, as pending_w could be here */
1719		1931
1720	p->w->pending = 0;	1932	p->w->pending = 0;
1721	EV_CB_INVOKE (p->w, p->events);	1933	EV_CB_INVOKE (p->w, p->events);
1722	EV_FREQUENT_CHECK;	1934	EV_FREQUENT_CHECK;
1723	}
1724	}	1935	}
1725	}	1936	}
1726		1937
1727	#if EV_IDLE_ENABLE	1938	#if EV_IDLE_ENABLE
1728	void inline_size	1939	/* make idle watchers pending. this handles the "call-idle */
		1940	/* only when higher priorities are idle" logic */
		1941	inline_size void
1729	idle_reify (EV_P)	1942	idle_reify (EV_P)
1730	{	1943	{
1731	if (expect_false (idleall))	1944	if (expect_false (idleall))
1732	{	1945	{
1733	int pri;	1946	int pri;
…		…
1745	}	1958	}
1746	}	1959	}
1747	}	1960	}
1748	#endif	1961	#endif
1749		1962
1750	void inline_size	1963	/* make timers pending */
		1964	inline_size void
1751	timers_reify (EV_P)	1965	timers_reify (EV_P)
1752	{	1966	{
1753	EV_FREQUENT_CHECK;	1967	EV_FREQUENT_CHECK;
1754		1968
1755	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1969	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1756	{	1970	{
1757	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1971	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	{	1972	{
		1973	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1974
		1975	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		1976
		1977	/* first reschedule or stop timer */
		1978	if (w->repeat)
		1979	{
1764	ev_at (w) += w->repeat;	1980	ev_at (w) += w->repeat;
1765	if (ev_at (w) < mn_now)	1981	if (ev_at (w) < mn_now)
1766	ev_at (w) = mn_now;	1982	ev_at (w) = mn_now;
1767		1983
1768	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1984	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1769		1985
1770	ANHE_at_cache (timers [HEAP0]);	1986	ANHE_at_cache (timers [HEAP0]);
1771	downheap (timers, timercnt, HEAP0);	1987	downheap (timers, timercnt, HEAP0);
		1988	}
		1989	else
		1990	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1991
		1992	EV_FREQUENT_CHECK;
		1993	feed_reverse (EV_A_ (W)w);
1772	}	1994	}
1773	else	1995	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1774	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1775		1996
1776	EV_FREQUENT_CHECK;
1777	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1997	feed_reverse_done (EV_A_ EV_TIMEOUT);
1778	}	1998	}
1779	}	1999	}
1780		2000
1781	#if EV_PERIODIC_ENABLE	2001	#if EV_PERIODIC_ENABLE
1782	void inline_size	2002	/* make periodics pending */
		2003	inline_size void
1783	periodics_reify (EV_P)	2004	periodics_reify (EV_P)
1784	{	2005	{
1785	EV_FREQUENT_CHECK;	2006	EV_FREQUENT_CHECK;
1786		2007
1787	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2008	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1788	{	2009	{
1789	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2010	int feed_count = 0;
1790		2011
1791	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2012	do
1792
1793	/* first reschedule or stop timer */
1794	if (w->reschedule_cb)
1795	{	2013	{
		2014	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2015
		2016	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2017
		2018	/* first reschedule or stop timer */
		2019	if (w->reschedule_cb)
		2020	{
1796	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2021	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1797		2022
1798	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	2023	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1799		2024
1800	ANHE_at_cache (periodics [HEAP0]);	2025	ANHE_at_cache (periodics [HEAP0]);
1801	downheap (periodics, periodiccnt, HEAP0);	2026	downheap (periodics, periodiccnt, HEAP0);
		2027	}
		2028	else if (w->interval)
		2029	{
		2030	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2031	/* if next trigger time is not sufficiently in the future, put it there */
		2032	/* this might happen because of floating point inexactness */
		2033	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2034	{
		2035	ev_at (w) += w->interval;
		2036
		2037	/* if interval is unreasonably low we might still have a time in the past */
		2038	/* so correct this. this will make the periodic very inexact, but the user */
		2039	/* has effectively asked to get triggered more often than possible */
		2040	if (ev_at (w) < ev_rt_now)
		2041	ev_at (w) = ev_rt_now;
		2042	}
		2043
		2044	ANHE_at_cache (periodics [HEAP0]);
		2045	downheap (periodics, periodiccnt, HEAP0);
		2046	}
		2047	else
		2048	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2049
		2050	EV_FREQUENT_CHECK;
		2051	feed_reverse (EV_A_ (W)w);
1802	}	2052	}
1803	else if (w->interval)	2053	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		2054
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);	2055	feed_reverse_done (EV_A_ EV_PERIODIC);
1827	}	2056	}
1828	}	2057	}
1829		2058
		2059	/* simply recalculate all periodics */
		2060	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1830	static void noinline	2061	static void noinline
1831	periodics_reschedule (EV_P)	2062	periodics_reschedule (EV_P)
1832	{	2063	{
1833	int i;	2064	int i;
1834		2065
…		…
1847		2078
1848	reheap (periodics, periodiccnt);	2079	reheap (periodics, periodiccnt);
1849	}	2080	}
1850	#endif	2081	#endif
1851		2082
1852	void inline_speed	2083	/* adjust all timers by a given offset */
		2084	static void noinline
		2085	timers_reschedule (EV_P_ ev_tstamp adjust)
		2086	{
		2087	int i;
		2088
		2089	for (i = 0; i < timercnt; ++i)
		2090	{
		2091	ANHE *he = timers + i + HEAP0;
		2092	ANHE_w (*he)->at += adjust;
		2093	ANHE_at_cache (*he);
		2094	}
		2095	}
		2096
		2097	/* fetch new monotonic and realtime times from the kernel */
		2098	/* also detetc if there was a timejump, and act accordingly */
		2099	inline_speed void
1853	time_update (EV_P_ ev_tstamp max_block)	2100	time_update (EV_P_ ev_tstamp max_block)
1854	{	2101	{
1855	int i;
1856
1857	#if EV_USE_MONOTONIC	2102	#if EV_USE_MONOTONIC
1858	if (expect_true (have_monotonic))	2103	if (expect_true (have_monotonic))
1859	{	2104	{
		2105	int i;
1860	ev_tstamp odiff = rtmn_diff;	2106	ev_tstamp odiff = rtmn_diff;
1861		2107
1862	mn_now = get_clock ();	2108	mn_now = get_clock ();
1863		2109
1864	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2110	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1890	ev_rt_now = ev_time ();	2136	ev_rt_now = ev_time ();
1891	mn_now = get_clock ();	2137	mn_now = get_clock ();
1892	now_floor = mn_now;	2138	now_floor = mn_now;
1893	}	2139	}
1894		2140
		2141	/* no timer adjustment, as the monotonic clock doesn't jump */
		2142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1895	# if EV_PERIODIC_ENABLE	2143	# if EV_PERIODIC_ENABLE
1896	periodics_reschedule (EV_A);	2144	periodics_reschedule (EV_A);
1897	# endif	2145	# endif
1898	/* no timer adjustment, as the monotonic clock doesn't jump */
1899	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1900	}	2146	}
1901	else	2147	else
1902	#endif	2148	#endif
1903	{	2149	{
1904	ev_rt_now = ev_time ();	2150	ev_rt_now = ev_time ();
1905		2151
1906	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2152	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1907	{	2153	{
		2154	/* adjust timers. this is easy, as the offset is the same for all of them */
		2155	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1908	#if EV_PERIODIC_ENABLE	2156	#if EV_PERIODIC_ENABLE
1909	periodics_reschedule (EV_A);	2157	periodics_reschedule (EV_A);
1910	#endif	2158	#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	}	2159	}
1919		2160
1920	mn_now = ev_rt_now;	2161	mn_now = ev_rt_now;
1921	}	2162	}
1922	}	2163	}
1923		2164
1924	void	2165	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)	2166	ev_loop (EV_P_ int flags)
1946	{	2167	{
		2168	#if EV_MINIMAL < 2
		2169	++loop_depth;
		2170	#endif
		2171
		2172	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2173
1947	loop_done = EVUNLOOP_CANCEL;	2174	loop_done = EVUNLOOP_CANCEL;
1948		2175
1949	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2176	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1950		2177
1951	do	2178	do
1952	{	2179	{
1953	#if EV_VERIFY >= 2	2180	#if EV_VERIFY >= 2
1954	ev_loop_verify (EV_A);	2181	ev_loop_verify (EV_A);
…		…
1967	/* we might have forked, so queue fork handlers */	2194	/* we might have forked, so queue fork handlers */
1968	if (expect_false (postfork))	2195	if (expect_false (postfork))
1969	if (forkcnt)	2196	if (forkcnt)
1970	{	2197	{
1971	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2198	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1972	call_pending (EV_A);	2199	EV_INVOKE_PENDING;
1973	}	2200	}
1974	#endif	2201	#endif
1975		2202
1976	/* queue prepare watchers (and execute them) */	2203	/* queue prepare watchers (and execute them) */
1977	if (expect_false (preparecnt))	2204	if (expect_false (preparecnt))
1978	{	2205	{
1979	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2206	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1980	call_pending (EV_A);	2207	EV_INVOKE_PENDING;
1981	}	2208	}
1982		2209
1983	if (expect_false (!activecnt))	2210	if (expect_false (loop_done))
1984	break;	2211	break;
1985		2212
1986	/* we might have forked, so reify kernel state if necessary */	2213	/* we might have forked, so reify kernel state if necessary */
1987	if (expect_false (postfork))	2214	if (expect_false (postfork))
1988	loop_fork (EV_A);	2215	loop_fork (EV_A);
…		…
1995	ev_tstamp waittime = 0.;	2222	ev_tstamp waittime = 0.;
1996	ev_tstamp sleeptime = 0.;	2223	ev_tstamp sleeptime = 0.;
1997		2224
1998	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2225	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1999	{	2226	{
		2227	/* remember old timestamp for io_blocktime calculation */
		2228	ev_tstamp prev_mn_now = mn_now;
		2229
2000	/* update time to cancel out callback processing overhead */	2230	/* update time to cancel out callback processing overhead */
2001	time_update (EV_A_ 1e100);	2231	time_update (EV_A_ 1e100);
2002		2232
2003	waittime = MAX_BLOCKTIME;	2233	waittime = MAX_BLOCKTIME;
2004		2234
…		…
2014	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2244	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2015	if (waittime > to) waittime = to;	2245	if (waittime > to) waittime = to;
2016	}	2246	}
2017	#endif	2247	#endif
2018		2248
		2249	/* don't let timeouts decrease the waittime below timeout_blocktime */
2019	if (expect_false (waittime < timeout_blocktime))	2250	if (expect_false (waittime < timeout_blocktime))
2020	waittime = timeout_blocktime;	2251	waittime = timeout_blocktime;
2021		2252
2022	sleeptime = waittime - backend_fudge;	2253	/* extra check because io_blocktime is commonly 0 */
2023
2024	if (expect_true (sleeptime > io_blocktime))	2254	if (expect_false (io_blocktime))
2025	sleeptime = io_blocktime;
2026
2027	if (sleeptime)
2028	{	2255	{
		2256	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2257
		2258	if (sleeptime > waittime - backend_fudge)
		2259	sleeptime = waittime - backend_fudge;
		2260
		2261	if (expect_true (sleeptime > 0.))
		2262	{
2029	ev_sleep (sleeptime);	2263	ev_sleep (sleeptime);
2030	waittime -= sleeptime;	2264	waittime -= sleeptime;
		2265	}
2031	}	2266	}
2032	}	2267	}
2033		2268
		2269	#if EV_MINIMAL < 2
2034	++loop_count;	2270	++loop_count;
		2271	#endif
		2272	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2035	backend_poll (EV_A_ waittime);	2273	backend_poll (EV_A_ waittime);
		2274	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2036		2275
2037	/* update ev_rt_now, do magic */	2276	/* update ev_rt_now, do magic */
2038	time_update (EV_A_ waittime + sleeptime);	2277	time_update (EV_A_ waittime + sleeptime);
2039	}	2278	}
2040		2279
…		…
2051		2290
2052	/* queue check watchers, to be executed first */	2291	/* queue check watchers, to be executed first */
2053	if (expect_false (checkcnt))	2292	if (expect_false (checkcnt))
2054	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2293	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2055		2294
2056	call_pending (EV_A);	2295	EV_INVOKE_PENDING;
2057	}	2296	}
2058	while (expect_true (	2297	while (expect_true (
2059	activecnt	2298	activecnt
2060	&& !loop_done	2299	&& !loop_done
2061	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2300	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2062	));	2301	));
2063		2302
2064	if (loop_done == EVUNLOOP_ONE)	2303	if (loop_done == EVUNLOOP_ONE)
2065	loop_done = EVUNLOOP_CANCEL;	2304	loop_done = EVUNLOOP_CANCEL;
		2305
		2306	#if EV_MINIMAL < 2
		2307	--loop_depth;
		2308	#endif
2066	}	2309	}
2067		2310
2068	void	2311	void
2069	ev_unloop (EV_P_ int how)	2312	ev_unloop (EV_P_ int how)
2070	{	2313	{
2071	loop_done = how;	2314	loop_done = how;
2072	}	2315	}
2073		2316
		2317	void
		2318	ev_ref (EV_P)
		2319	{
		2320	++activecnt;
		2321	}
		2322
		2323	void
		2324	ev_unref (EV_P)
		2325	{
		2326	--activecnt;
		2327	}
		2328
		2329	void
		2330	ev_now_update (EV_P)
		2331	{
		2332	time_update (EV_A_ 1e100);
		2333	}
		2334
		2335	void
		2336	ev_suspend (EV_P)
		2337	{
		2338	ev_now_update (EV_A);
		2339	}
		2340
		2341	void
		2342	ev_resume (EV_P)
		2343	{
		2344	ev_tstamp mn_prev = mn_now;
		2345
		2346	ev_now_update (EV_A);
		2347	timers_reschedule (EV_A_ mn_now - mn_prev);
		2348	#if EV_PERIODIC_ENABLE
		2349	/* TODO: really do this? */
		2350	periodics_reschedule (EV_A);
		2351	#endif
		2352	}
		2353
2074	/*****************************************************************************/	2354	/*****************************************************************************/
		2355	/* singly-linked list management, used when the expected list length is short */
2075		2356
2076	void inline_size	2357	inline_size void
2077	wlist_add (WL *head, WL elem)	2358	wlist_add (WL *head, WL elem)
2078	{	2359	{
2079	elem->next = *head;	2360	elem->next = *head;
2080	*head = elem;	2361	*head = elem;
2081	}	2362	}
2082		2363
2083	void inline_size	2364	inline_size void
2084	wlist_del (WL *head, WL elem)	2365	wlist_del (WL *head, WL elem)
2085	{	2366	{
2086	while (*head)	2367	while (*head)
2087	{	2368	{
2088	if (*head == elem)	2369	if (*head == elem)
…		…
2093		2374
2094	head = &(*head)->next;	2375	head = &(*head)->next;
2095	}	2376	}
2096	}	2377	}
2097		2378
2098	void inline_speed	2379	/* internal, faster, version of ev_clear_pending */
		2380	inline_speed void
2099	clear_pending (EV_P_ W w)	2381	clear_pending (EV_P_ W w)
2100	{	2382	{
2101	if (w->pending)	2383	if (w->pending)
2102	{	2384	{
2103	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2385	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2104	w->pending = 0;	2386	w->pending = 0;
2105	}	2387	}
2106	}	2388	}
2107		2389
2108	int	2390	int
…		…
2112	int pending = w_->pending;	2394	int pending = w_->pending;
2113		2395
2114	if (expect_true (pending))	2396	if (expect_true (pending))
2115	{	2397	{
2116	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2398	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2399	p->w = (W)&pending_w;
2117	w_->pending = 0;	2400	w_->pending = 0;
2118	p->w = 0;
2119	return p->events;	2401	return p->events;
2120	}	2402	}
2121	else	2403	else
2122	return 0;	2404	return 0;
2123	}	2405	}
2124		2406
2125	void inline_size	2407	inline_size void
2126	pri_adjust (EV_P_ W w)	2408	pri_adjust (EV_P_ W w)
2127	{	2409	{
2128	int pri = w->priority;	2410	int pri = ev_priority (w);
2129	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2411	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2130	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2412	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2131	w->priority = pri;	2413	ev_set_priority (w, pri);
2132	}	2414	}
2133		2415
2134	void inline_speed	2416	inline_speed void
2135	ev_start (EV_P_ W w, int active)	2417	ev_start (EV_P_ W w, int active)
2136	{	2418	{
2137	pri_adjust (EV_A_ w);	2419	pri_adjust (EV_A_ w);
2138	w->active = active;	2420	w->active = active;
2139	ev_ref (EV_A);	2421	ev_ref (EV_A);
2140	}	2422	}
2141		2423
2142	void inline_size	2424	inline_size void
2143	ev_stop (EV_P_ W w)	2425	ev_stop (EV_P_ W w)
2144	{	2426	{
2145	ev_unref (EV_A);	2427	ev_unref (EV_A);
2146	w->active = 0;	2428	w->active = 0;
2147	}	2429	}
…		…
2155		2437
2156	if (expect_false (ev_is_active (w)))	2438	if (expect_false (ev_is_active (w)))
2157	return;	2439	return;
2158		2440
2159	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2441	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))));	2442	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2161		2443
2162	EV_FREQUENT_CHECK;	2444	EV_FREQUENT_CHECK;
2163		2445
2164	ev_start (EV_A_ (W)w, 1);	2446	ev_start (EV_A_ (W)w, 1);
2165	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2447	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2166	wlist_add (&anfds[fd].head, (WL)w);	2448	wlist_add (&anfds[fd].head, (WL)w);
2167		2449
2168	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2450	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2169	w->events &= ~EV_IOFDSET;	2451	w->events &= ~EV__IOFDSET;
2170		2452
2171	EV_FREQUENT_CHECK;	2453	EV_FREQUENT_CHECK;
2172	}	2454	}
2173		2455
2174	void noinline	2456	void noinline
…		…
2267	}	2549	}
2268		2550
2269	EV_FREQUENT_CHECK;	2551	EV_FREQUENT_CHECK;
2270	}	2552	}
2271		2553
		2554	ev_tstamp
		2555	ev_timer_remaining (EV_P_ ev_timer *w)
		2556	{
		2557	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2558	}
		2559
2272	#if EV_PERIODIC_ENABLE	2560	#if EV_PERIODIC_ENABLE
2273	void noinline	2561	void noinline
2274	ev_periodic_start (EV_P_ ev_periodic *w)	2562	ev_periodic_start (EV_P_ ev_periodic *w)
2275	{	2563	{
2276	if (expect_false (ev_is_active (w)))	2564	if (expect_false (ev_is_active (w)))
…		…
2351	if (expect_false (ev_is_active (w)))	2639	if (expect_false (ev_is_active (w)))
2352	return;	2640	return;
2353		2641
2354	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2642	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));
2355		2643
		2644	EV_FREQUENT_CHECK;
		2645
		2646	#if EV_USE_SIGNALFD
		2647	if (sigfd == -2)
		2648	{
		2649	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
		2650	if (sigfd < 0 && errno == EINVAL)
		2651	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
		2652
		2653	if (sigfd >= 0)
		2654	{
		2655	fd_intern (sigfd); /* doing it twice will not hurt */
		2656
		2657	sigemptyset (&sigfd_set);
		2658
		2659	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2660	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2661	ev_io_start (EV_A_ &sigfd_w);
		2662	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2663	}
		2664	}
		2665
		2666	if (sigfd >= 0)
		2667	{
		2668	/* TODO: check .head */
		2669	sigaddset (&sigfd_set, w->signum);
		2670	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2671
		2672	signalfd (sigfd, &sigfd_set, 0);
		2673	}
		2674	else
		2675	#endif
2356	evpipe_init (EV_A);	2676	evpipe_init (EV_A);
2357
2358	EV_FREQUENT_CHECK;
2359		2677
2360	{	2678	{
2361	#ifndef _WIN32	2679	#ifndef _WIN32
2362	sigset_t full, prev;	2680	sigset_t full, prev;
2363	sigfillset (&full);	2681	sigfillset (&full);
…		…
2365	#endif	2683	#endif
2366		2684
2367	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2685	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2368		2686
2369	#ifndef _WIN32	2687	#ifndef _WIN32
		2688	if (sigfd < 0)/*TODO*/
		2689	sigdelset (&prev, w->signum);
2370	sigprocmask (SIG_SETMASK, &prev, 0);	2690	sigprocmask (SIG_SETMASK, &prev, 0);
2371	#endif	2691	#endif
2372	}	2692	}
2373		2693
2374	ev_start (EV_A_ (W)w, 1);	2694	ev_start (EV_A_ (W)w, 1);
…		…
2377	if (!((WL)w)->next)	2697	if (!((WL)w)->next)
2378	{	2698	{
2379	#if _WIN32	2699	#if _WIN32
2380	signal (w->signum, ev_sighandler);	2700	signal (w->signum, ev_sighandler);
2381	#else	2701	#else
		2702	if (sigfd < 0) /*TODO*/
		2703	{
2382	struct sigaction sa;	2704	struct sigaction sa = { };
2383	sa.sa_handler = ev_sighandler;	2705	sa.sa_handler = ev_sighandler;
2384	sigfillset (&sa.sa_mask);	2706	sigfillset (&sa.sa_mask);
2385	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2707	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2386	sigaction (w->signum, &sa, 0);	2708	sigaction (w->signum, &sa, 0);
		2709	}
2387	#endif	2710	#endif
2388	}	2711	}
2389		2712
2390	EV_FREQUENT_CHECK;	2713	EV_FREQUENT_CHECK;
2391	}	2714	}
…		…
2401		2724
2402	wlist_del (&signals [w->signum - 1].head, (WL)w);	2725	wlist_del (&signals [w->signum - 1].head, (WL)w);
2403	ev_stop (EV_A_ (W)w);	2726	ev_stop (EV_A_ (W)w);
2404		2727
2405	if (!signals [w->signum - 1].head)	2728	if (!signals [w->signum - 1].head)
		2729	#if EV_USE_SIGNALFD
		2730	if (sigfd >= 0)
		2731	{
		2732	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2733	sigdelset (&sigfd_set, w->signum);
		2734	signalfd (sigfd, &sigfd_set, 0);
		2735	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2736	/*TODO: maybe unblock signal? */
		2737	}
		2738	else
		2739	#endif
2406	signal (w->signum, SIG_DFL);	2740	signal (w->signum, SIG_DFL);
2407		2741
2408	EV_FREQUENT_CHECK;	2742	EV_FREQUENT_CHECK;
2409	}	2743	}
2410		2744
2411	void	2745	void
…		…
2572		2906
2573	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2907	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2574	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2908	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2575	}	2909	}
2576		2910
2577	void inline_size	2911	inline_size void
2578	check_2625 (EV_P)	2912	check_2625 (EV_P)
2579	{	2913	{
2580	/* kernels < 2.6.25 are borked	2914	/* kernels < 2.6.25 are borked
2581	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	2915	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2582	*/	2916	*/
…		…
2595	return;	2929	return;
2596		2930
2597	fs_2625 = 1;	2931	fs_2625 = 1;
2598	}	2932	}
2599		2933
2600	void inline_size	2934	inline_size void
2601	infy_init (EV_P)	2935	infy_init (EV_P)
2602	{	2936	{
2603	if (fs_fd != -2)	2937	if (fs_fd != -2)
2604	return;	2938	return;
2605		2939
…		…
2615	ev_set_priority (&fs_w, EV_MAXPRI);	2949	ev_set_priority (&fs_w, EV_MAXPRI);
2616	ev_io_start (EV_A_ &fs_w);	2950	ev_io_start (EV_A_ &fs_w);
2617	}	2951	}
2618	}	2952	}
2619		2953
2620	void inline_size	2954	inline_size void
2621	infy_fork (EV_P)	2955	infy_fork (EV_P)
2622	{	2956	{
2623	int slot;	2957	int slot;
2624		2958
2625	if (fs_fd < 0)	2959	if (fs_fd < 0)
…		…
3127	ev_timer_set (&once->to, timeout, 0.);	3461	ev_timer_set (&once->to, timeout, 0.);
3128	ev_timer_start (EV_A_ &once->to);	3462	ev_timer_start (EV_A_ &once->to);
3129	}	3463	}
3130	}	3464	}
3131		3465
		3466	/*****************************************************************************/
		3467
		3468	#if EV_WALK_ENABLE
		3469	void
		3470	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3471	{
		3472	int i, j;
		3473	ev_watcher_list *wl, *wn;
		3474
		3475	if (types & (EV_IO | EV_EMBED))
		3476	for (i = 0; i < anfdmax; ++i)
		3477	for (wl = anfds [i].head; wl; )
		3478	{
		3479	wn = wl->next;
		3480
		3481	#if EV_EMBED_ENABLE
		3482	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3483	{
		3484	if (types & EV_EMBED)
		3485	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3486	}
		3487	else
		3488	#endif
		3489	#if EV_USE_INOTIFY
		3490	if (ev_cb ((ev_io *)wl) == infy_cb)
		3491	;
		3492	else
		3493	#endif
		3494	if ((ev_io *)wl != &pipe_w)
		3495	if (types & EV_IO)
		3496	cb (EV_A_ EV_IO, wl);
		3497
		3498	wl = wn;
		3499	}
		3500
		3501	if (types & (EV_TIMER | EV_STAT))
		3502	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3503	#if EV_STAT_ENABLE
		3504	/*TODO: timer is not always active*/
		3505	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3506	{
		3507	if (types & EV_STAT)
		3508	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3509	}
		3510	else
		3511	#endif
		3512	if (types & EV_TIMER)
		3513	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3514
		3515	#if EV_PERIODIC_ENABLE
		3516	if (types & EV_PERIODIC)
		3517	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3518	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3519	#endif
		3520
		3521	#if EV_IDLE_ENABLE
		3522	if (types & EV_IDLE)
		3523	for (j = NUMPRI; i--; )
		3524	for (i = idlecnt [j]; i--; )
		3525	cb (EV_A_ EV_IDLE, idles [j][i]);
		3526	#endif
		3527
		3528	#if EV_FORK_ENABLE
		3529	if (types & EV_FORK)
		3530	for (i = forkcnt; i--; )
		3531	if (ev_cb (forks [i]) != embed_fork_cb)
		3532	cb (EV_A_ EV_FORK, forks [i]);
		3533	#endif
		3534
		3535	#if EV_ASYNC_ENABLE
		3536	if (types & EV_ASYNC)
		3537	for (i = asynccnt; i--; )
		3538	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3539	#endif
		3540
		3541	if (types & EV_PREPARE)
		3542	for (i = preparecnt; i--; )
		3543	#if EV_EMBED_ENABLE
		3544	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3545	#endif
		3546	cb (EV_A_ EV_PREPARE, prepares [i]);
		3547
		3548	if (types & EV_CHECK)
		3549	for (i = checkcnt; i--; )
		3550	cb (EV_A_ EV_CHECK, checks [i]);
		3551
		3552	if (types & EV_SIGNAL)
		3553	for (i = 0; i < signalmax; ++i)
		3554	for (wl = signals [i].head; wl; )
		3555	{
		3556	wn = wl->next;
		3557	cb (EV_A_ EV_SIGNAL, wl);
		3558	wl = wn;
		3559	}
		3560
		3561	if (types & EV_CHILD)
		3562	for (i = EV_PID_HASHSIZE; i--; )
		3563	for (wl = childs [i]; wl; )
		3564	{
		3565	wn = wl->next;
		3566	cb (EV_A_ EV_CHILD, wl);
		3567	wl = wn;
		3568	}
		3569	/* EV_STAT 0x00001000 /* stat data changed */
		3570	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3571	}
		3572	#endif
		3573
3132	#if EV_MULTIPLICITY	3574	#if EV_MULTIPLICITY
3133	#include "ev_wrap.h"	3575	#include "ev_wrap.h"
3134	#endif	3576	#endif
3135		3577
3136	#ifdef __cplusplus	3578	#ifdef __cplusplus

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