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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 1.314 by root, Wed Aug 26 17:31:20 2009 UTC

…		…
57	# endif	57	# endif
58	# ifndef EV_USE_MONOTONIC	58	# ifndef EV_USE_MONOTONIC
59	# define EV_USE_MONOTONIC 1	59	# define EV_USE_MONOTONIC 1
60	# endif	60	# endif
61	# endif	61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
62	# endif	64	# endif
63		65
64	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
65	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
66	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
67	# endif	69	# endif
68	# ifndef EV_USE_REALTIME	70	# ifndef EV_USE_REALTIME
69	# define EV_USE_REALTIME 1	71	# define EV_USE_REALTIME 0
70	# endif	72	# endif
71	# else	73	# else
72	# ifndef EV_USE_MONOTONIC	74	# ifndef EV_USE_MONOTONIC
73	# define EV_USE_MONOTONIC 0	75	# define EV_USE_MONOTONIC 0
74	# endif	76	# endif
…		…
128	# ifndef EV_USE_INOTIFY	130	# ifndef EV_USE_INOTIFY
129	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
130	# define EV_USE_INOTIFY 1	132	# define EV_USE_INOTIFY 1
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
		135	# endif
		136	# endif
		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
133	# endif	143	# endif
134	# endif	144	# endif
135		145
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
…		…
176	# endif	186	# endif
177	#endif	187	#endif
178		188
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
180		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	#if defined (EV_NSIG)
		193	/* use what's provided */
		194	#elif defined (NSIG)
		195	# define EV_NSIG (NSIG)
		196	#elif defined(_NSIG)
		197	# define EV_NSIG (_NSIG)
		198	#elif defined (SIGMAX)
		199	# define EV_NSIG (SIGMAX+1)
		200	#elif defined (SIG_MAX)
		201	# define EV_NSIG (SIG_MAX+1)
		202	#elif defined (_SIG_MAX)
		203	# define EV_NSIG (_SIG_MAX+1)
		204	#elif defined (MAXSIG)
		205	# define EV_NSIG (MAXSIG+1)
		206	#elif defined (MAX_SIG)
		207	# define EV_NSIG (MAX_SIG+1)
		208	#elif defined (SIGARRAYSIZE)
		209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		210	#elif defined (_sys_nsig)
		211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		212	#else
		213	# error "unable to find value for NSIG, please report"
		214	/* to make it compile regardless, just remove the above line */
		215	# define EV_NSIG 65
		216	#endif
		217
181	#ifndef EV_USE_CLOCK_SYSCALL	218	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	219	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	220	# define EV_USE_CLOCK_SYSCALL 1
184	# else	221	# else
185	# define EV_USE_CLOCK_SYSCALL 0	222	# define EV_USE_CLOCK_SYSCALL 0
…		…
193	# define EV_USE_MONOTONIC 0	230	# define EV_USE_MONOTONIC 0
194	# endif	231	# endif
195	#endif	232	#endif
196		233
197	#ifndef EV_USE_REALTIME	234	#ifndef EV_USE_REALTIME
198	# define EV_USE_REALTIME 0	235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199	#endif	236	#endif
200		237
201	#ifndef EV_USE_NANOSLEEP	238	#ifndef EV_USE_NANOSLEEP
202	# if _POSIX_C_SOURCE >= 199309L	239	# if _POSIX_C_SOURCE >= 199309L
203	# define EV_USE_NANOSLEEP 1	240	# define EV_USE_NANOSLEEP 1
…		…
264	# else	301	# else
265	# define EV_USE_EVENTFD 0	302	# define EV_USE_EVENTFD 0
266	# endif	303	# endif
267	#endif	304	#endif
268		305
		306	#ifndef EV_USE_SIGNALFD
		307	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		308	# define EV_USE_SIGNALFD 1
		309	# else
		310	# define EV_USE_SIGNALFD 0
		311	# endif
		312	#endif
		313
269	#if 0 /* debugging */	314	#if 0 /* debugging */
270	# define EV_VERIFY 3	315	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	316	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	317	# define EV_HEAP_CACHE_AT 1
273	#endif	318	#endif
…		…
280	# define EV_USE_4HEAP !EV_MINIMAL	325	# define EV_USE_4HEAP !EV_MINIMAL
281	#endif	326	#endif
282		327
283	#ifndef EV_HEAP_CACHE_AT	328	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	329	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		330	#endif
		331
		332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		333	/* which makes programs even slower. might work on other unices, too. */
		334	#if EV_USE_CLOCK_SYSCALL
		335	# include <syscall.h>
		336	# ifdef SYS_clock_gettime
		337	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		338	# undef EV_USE_MONOTONIC
		339	# define EV_USE_MONOTONIC 1
		340	# else
		341	# undef EV_USE_CLOCK_SYSCALL
		342	# define EV_USE_CLOCK_SYSCALL 0
		343	# endif
285	#endif	344	#endif
286		345
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
288		347
289	#ifndef CLOCK_MONOTONIC	348	#ifndef CLOCK_MONOTONIC
…		…
320		379
321	#if EV_SELECT_IS_WINSOCKET	380	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	381	# include <winsock.h>
323	#endif	382	#endif
324		383
325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326	/* which makes programs even slower. might work on other unices, too. */
327	#if EV_USE_CLOCK_SYSCALL
328	# include <syscall.h>
329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330	# undef EV_USE_MONOTONIC
331	# define EV_USE_MONOTONIC 1
332	#endif
333
334	#if EV_USE_EVENTFD	384	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	385	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	386	# include <stdint.h>
		387	# ifndef EFD_NONBLOCK
		388	# define EFD_NONBLOCK O_NONBLOCK
		389	# endif
		390	# ifndef EFD_CLOEXEC
		391	# ifdef O_CLOEXEC
		392	# define EFD_CLOEXEC O_CLOEXEC
		393	# else
		394	# define EFD_CLOEXEC 02000000
		395	# endif
		396	# endif
337	# ifdef __cplusplus	397	# ifdef __cplusplus
338	extern "C" {	398	extern "C" {
339	# endif	399	# endif
340	int eventfd (unsigned int initval, int flags);	400	int eventfd (unsigned int initval, int flags);
341	# ifdef __cplusplus	401	# ifdef __cplusplus
342	}	402	}
343	# endif	403	# endif
344	#endif	404	#endif
		405
		406	#if EV_USE_SIGNALFD
		407	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		408	# include <stdint.h>
		409	# ifndef SFD_NONBLOCK
		410	# define SFD_NONBLOCK O_NONBLOCK
		411	# endif
		412	# ifndef SFD_CLOEXEC
		413	# ifdef O_CLOEXEC
		414	# define SFD_CLOEXEC O_CLOEXEC
		415	# else
		416	# define SFD_CLOEXEC 02000000
		417	# endif
		418	# endif
		419	# ifdef __cplusplus
		420	extern "C" {
		421	# endif
		422	int signalfd (int fd, const sigset_t *mask, int flags);
		423
		424	struct signalfd_siginfo
		425	{
		426	uint32_t ssi_signo;
		427	char pad[128 - sizeof (uint32_t)];
		428	};
		429	# ifdef __cplusplus
		430	}
		431	# endif
		432	#endif
		433
345		434
346	/**/	435	/**/
347		436
348	#if EV_VERIFY >= 3	437	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
384	# define inline_speed static noinline	473	# define inline_speed static noinline
385	#else	474	#else
386	# define inline_speed static inline	475	# define inline_speed static inline
387	#endif	476	#endif
388		477
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	478	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		479
		480	#if EV_MINPRI == EV_MAXPRI
		481	# define ABSPRI(w) (((W)w), 0)
		482	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	483	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		484	#endif
391		485
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	486	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	487	#define EMPTY2(a,b) /* used to suppress some warnings */
394		488
395	typedef ev_watcher *W;	489	typedef ev_watcher *W;
…		…
397	typedef ev_watcher_time *WT;	491	typedef ev_watcher_time *WT;
398		492
399	#define ev_active(w) ((W)(w))->active	493	#define ev_active(w) ((W)(w))->active
400	#define ev_at(w) ((WT)(w))->at	494	#define ev_at(w) ((WT)(w))->at
401		495
402	#if EV_USE_MONOTONIC	496	#if EV_USE_REALTIME
403	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	497	/* 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 */	498	/* giving it a reasonably high chance of working on typical architetcures */
		499	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
		500	#endif
		501
		502	#if EV_USE_MONOTONIC
405	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	503	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		504	#endif
		505
		506	#ifndef EV_FD_TO_WIN32_HANDLE
		507	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		508	#endif
		509	#ifndef EV_WIN32_HANDLE_TO_FD
		510	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
		511	#endif
		512	#ifndef EV_WIN32_CLOSE_FD
		513	# define EV_WIN32_CLOSE_FD(fd) close (fd)
406	#endif	514	#endif
407		515
408	#ifdef _WIN32	516	#ifdef _WIN32
409	# include "ev_win32.c"	517	# include "ev_win32.c"
410	#endif	518	#endif
…		…
474	#define ev_malloc(size) ev_realloc (0, (size))	582	#define ev_malloc(size) ev_realloc (0, (size))
475	#define ev_free(ptr) ev_realloc ((ptr), 0)	583	#define ev_free(ptr) ev_realloc ((ptr), 0)
476		584
477	/*****************************************************************************/	585	/*****************************************************************************/
478		586
		587	/* set in reify when reification needed */
		588	#define EV_ANFD_REIFY 1
		589
		590	/* file descriptor info structure */
479	typedef struct	591	typedef struct
480	{	592	{
481	WL head;	593	WL head;
482	unsigned char events;	594	unsigned char events; /* the events watched for */
483	unsigned char reify;	595	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 */	596	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
485	unsigned char unused;	597	unsigned char unused;
486	#if EV_USE_EPOLL	598	#if EV_USE_EPOLL
487	unsigned int egen; /* generation counter to counter epoll bugs */	599	unsigned int egen; /* generation counter to counter epoll bugs */
488	#endif	600	#endif
489	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
490	SOCKET handle;	602	SOCKET handle;
491	#endif	603	#endif
492	} ANFD;	604	} ANFD;
493		605
		606	/* stores the pending event set for a given watcher */
494	typedef struct	607	typedef struct
495	{	608	{
496	W w;	609	W w;
497	int events;	610	int events; /* the pending event set for the given watcher */
498	} ANPENDING;	611	} ANPENDING;
499		612
500	#if EV_USE_INOTIFY	613	#if EV_USE_INOTIFY
501	/* hash table entry per inotify-id */	614	/* hash table entry per inotify-id */
502	typedef struct	615	typedef struct
…		…
505	} ANFS;	618	} ANFS;
506	#endif	619	#endif
507		620
508	/* Heap Entry */	621	/* Heap Entry */
509	#if EV_HEAP_CACHE_AT	622	#if EV_HEAP_CACHE_AT
		623	/* a heap element */
510	typedef struct {	624	typedef struct {
511	ev_tstamp at;	625	ev_tstamp at;
512	WT w;	626	WT w;
513	} ANHE;	627	} ANHE;
514		628
515	#define ANHE_w(he) (he).w /* access watcher, read-write */	629	#define ANHE_w(he) (he).w /* access watcher, read-write */
516	#define ANHE_at(he) (he).at /* access cached at, read-only */	630	#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 */	631	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
518	#else	632	#else
		633	/* a heap element */
519	typedef WT ANHE;	634	typedef WT ANHE;
520		635
521	#define ANHE_w(he) (he)	636	#define ANHE_w(he) (he)
522	#define ANHE_at(he) (he)->at	637	#define ANHE_at(he) (he)->at
523	#define ANHE_at_cache(he)	638	#define ANHE_at_cache(he)
…		…
547		662
548	static int ev_default_loop_ptr;	663	static int ev_default_loop_ptr;
549		664
550	#endif	665	#endif
551		666
		667	#if EV_MINIMAL < 2
		668	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		669	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		670	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		671	#else
		672	# define EV_RELEASE_CB (void)0
		673	# define EV_ACQUIRE_CB (void)0
		674	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		675	#endif
		676
		677	#define EVUNLOOP_RECURSE 0x80
		678
552	/*****************************************************************************/	679	/*****************************************************************************/
553		680
		681	#ifndef EV_HAVE_EV_TIME
554	ev_tstamp	682	ev_tstamp
555	ev_time (void)	683	ev_time (void)
556	{	684	{
557	#if EV_USE_REALTIME	685	#if EV_USE_REALTIME
		686	if (expect_true (have_realtime))
		687	{
558	struct timespec ts;	688	struct timespec ts;
559	clock_gettime (CLOCK_REALTIME, &ts);	689	clock_gettime (CLOCK_REALTIME, &ts);
560	return ts.tv_sec + ts.tv_nsec * 1e-9;	690	return ts.tv_sec + ts.tv_nsec * 1e-9;
561	#else	691	}
		692	#endif
		693
562	struct timeval tv;	694	struct timeval tv;
563	gettimeofday (&tv, 0);	695	gettimeofday (&tv, 0);
564	return tv.tv_sec + tv.tv_usec * 1e-6;	696	return tv.tv_sec + tv.tv_usec * 1e-6;
565	#endif
566	}	697	}
		698	#endif
567		699
568	ev_tstamp inline_size	700	inline_size ev_tstamp
569	get_clock (void)	701	get_clock (void)
570	{	702	{
571	#if EV_USE_MONOTONIC	703	#if EV_USE_MONOTONIC
572	if (expect_true (have_monotonic))	704	if (expect_true (have_monotonic))
573	{	705	{
…		…
607		739
608	tv.tv_sec = (time_t)delay;	740	tv.tv_sec = (time_t)delay;
609	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	741	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
610		742
611	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	743	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
612	/* somehting nto guaranteed by newer posix versions, but guaranteed */	744	/* something not guaranteed by newer posix versions, but guaranteed */
613	/* by older ones */	745	/* by older ones */
614	select (0, 0, 0, 0, &tv);	746	select (0, 0, 0, 0, &tv);
615	#endif	747	#endif
616	}	748	}
617	}	749	}
618		750
619	/*****************************************************************************/	751	/*****************************************************************************/
620		752
621	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	753	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
622		754
623	int inline_size	755	/* find a suitable new size for the given array, */
		756	/* hopefully by rounding to a ncie-to-malloc size */
		757	inline_size int
624	array_nextsize (int elem, int cur, int cnt)	758	array_nextsize (int elem, int cur, int cnt)
625	{	759	{
626	int ncur = cur + 1;	760	int ncur = cur + 1;
627		761
628	do	762	do
…		…
669	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	803	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
670	}	804	}
671	#endif	805	#endif
672		806
673	#define array_free(stem, idx) \	807	#define array_free(stem, idx) \
674	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	808	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
675		809
676	/*****************************************************************************/	810	/*****************************************************************************/
		811
		812	/* dummy callback for pending events */
		813	static void noinline
		814	pendingcb (EV_P_ ev_prepare *w, int revents)
		815	{
		816	}
677		817
678	void noinline	818	void noinline
679	ev_feed_event (EV_P_ void *w, int revents)	819	ev_feed_event (EV_P_ void *w, int revents)
680	{	820	{
681	W w_ = (W)w;	821	W w_ = (W)w;
…		…
690	pendings [pri][w_->pending - 1].w = w_;	830	pendings [pri][w_->pending - 1].w = w_;
691	pendings [pri][w_->pending - 1].events = revents;	831	pendings [pri][w_->pending - 1].events = revents;
692	}	832	}
693	}	833	}
694		834
695	void inline_speed	835	inline_speed void
		836	feed_reverse (EV_P_ W w)
		837	{
		838	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
		839	rfeeds [rfeedcnt++] = w;
		840	}
		841
		842	inline_size void
		843	feed_reverse_done (EV_P_ int revents)
		844	{
		845	do
		846	ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
		847	while (rfeedcnt);
		848	}
		849
		850	inline_speed void
696	queue_events (EV_P_ W *events, int eventcnt, int type)	851	queue_events (EV_P_ W *events, int eventcnt, int type)
697	{	852	{
698	int i;	853	int i;
699		854
700	for (i = 0; i < eventcnt; ++i)	855	for (i = 0; i < eventcnt; ++i)
701	ev_feed_event (EV_A_ events [i], type);	856	ev_feed_event (EV_A_ events [i], type);
702	}	857	}
703		858
704	/*****************************************************************************/	859	/*****************************************************************************/
705		860
706	void inline_speed	861	inline_speed void
707	fd_event (EV_P_ int fd, int revents)	862	fd_event_nc (EV_P_ int fd, int revents)
708	{	863	{
709	ANFD *anfd = anfds + fd;	864	ANFD *anfd = anfds + fd;
710	ev_io *w;	865	ev_io *w;
711		866
712	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	867	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
716	if (ev)	871	if (ev)
717	ev_feed_event (EV_A_ (W)w, ev);	872	ev_feed_event (EV_A_ (W)w, ev);
718	}	873	}
719	}	874	}
720		875
		876	/* do not submit kernel events for fds that have reify set */
		877	/* because that means they changed while we were polling for new events */
		878	inline_speed void
		879	fd_event (EV_P_ int fd, int revents)
		880	{
		881	ANFD *anfd = anfds + fd;
		882
		883	if (expect_true (!anfd->reify))
		884	fd_event_nc (EV_A_ fd, revents);
		885	}
		886
721	void	887	void
722	ev_feed_fd_event (EV_P_ int fd, int revents)	888	ev_feed_fd_event (EV_P_ int fd, int revents)
723	{	889	{
724	if (fd >= 0 && fd < anfdmax)	890	if (fd >= 0 && fd < anfdmax)
725	fd_event (EV_A_ fd, revents);	891	fd_event_nc (EV_A_ fd, revents);
726	}	892	}
727		893
728	void inline_size	894	/* make sure the external fd watch events are in-sync */
		895	/* with the kernel/libev internal state */
		896	inline_size void
729	fd_reify (EV_P)	897	fd_reify (EV_P)
730	{	898	{
731	int i;	899	int i;
732		900
733	for (i = 0; i < fdchangecnt; ++i)	901	for (i = 0; i < fdchangecnt; ++i)
…		…
743		911
744	#if EV_SELECT_IS_WINSOCKET	912	#if EV_SELECT_IS_WINSOCKET
745	if (events)	913	if (events)
746	{	914	{
747	unsigned long arg;	915	unsigned long arg;
748	#ifdef EV_FD_TO_WIN32_HANDLE
749	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	916	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
750	#else
751	anfd->handle = _get_osfhandle (fd);
752	#endif
753	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	917	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
754	}	918	}
755	#endif	919	#endif
756		920
757	{	921	{
…		…
759	unsigned char o_reify = anfd->reify;	923	unsigned char o_reify = anfd->reify;
760		924
761	anfd->reify = 0;	925	anfd->reify = 0;
762	anfd->events = events;	926	anfd->events = events;
763		927
764	if (o_events != events || o_reify & EV_IOFDSET)	928	if (o_events != events || o_reify & EV__IOFDSET)
765	backend_modify (EV_A_ fd, o_events, events);	929	backend_modify (EV_A_ fd, o_events, events);
766	}	930	}
767	}	931	}
768		932
769	fdchangecnt = 0;	933	fdchangecnt = 0;
770	}	934	}
771		935
772	void inline_size	936	/* something about the given fd changed */
		937	inline_size void
773	fd_change (EV_P_ int fd, int flags)	938	fd_change (EV_P_ int fd, int flags)
774	{	939	{
775	unsigned char reify = anfds [fd].reify;	940	unsigned char reify = anfds [fd].reify;
776	anfds [fd].reify |= flags;	941	anfds [fd].reify |= flags;
777		942
…		…
781	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	946	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
782	fdchanges [fdchangecnt - 1] = fd;	947	fdchanges [fdchangecnt - 1] = fd;
783	}	948	}
784	}	949	}
785		950
786	void inline_speed	951	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
		952	inline_speed void
787	fd_kill (EV_P_ int fd)	953	fd_kill (EV_P_ int fd)
788	{	954	{
789	ev_io *w;	955	ev_io *w;
790		956
791	while ((w = (ev_io *)anfds [fd].head))	957	while ((w = (ev_io *)anfds [fd].head))
…		…
793	ev_io_stop (EV_A_ w);	959	ev_io_stop (EV_A_ w);
794	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	960	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
795	}	961	}
796	}	962	}
797		963
798	int inline_size	964	/* check whether the given fd is atcually valid, for error recovery */
		965	inline_size int
799	fd_valid (int fd)	966	fd_valid (int fd)
800	{	967	{
801	#ifdef _WIN32	968	#ifdef _WIN32
802	return _get_osfhandle (fd) != -1;	969	return _get_osfhandle (fd) != -1;
803	#else	970	#else
…		…
825		992
826	for (fd = anfdmax; fd--; )	993	for (fd = anfdmax; fd--; )
827	if (anfds [fd].events)	994	if (anfds [fd].events)
828	{	995	{
829	fd_kill (EV_A_ fd);	996	fd_kill (EV_A_ fd);
830	return;	997	break;
831	}	998	}
832	}	999	}
833		1000
834	/* usually called after fork if backend needs to re-arm all fds from scratch */	1001	/* usually called after fork if backend needs to re-arm all fds from scratch */
835	static void noinline	1002	static void noinline
…		…
840	for (fd = 0; fd < anfdmax; ++fd)	1007	for (fd = 0; fd < anfdmax; ++fd)
841	if (anfds [fd].events)	1008	if (anfds [fd].events)
842	{	1009	{
843	anfds [fd].events = 0;	1010	anfds [fd].events = 0;
844	anfds [fd].emask = 0;	1011	anfds [fd].emask = 0;
845	fd_change (EV_A_ fd, EV_IOFDSET | 1);	1012	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
846	}	1013	}
847	}	1014	}
848		1015
849	/*****************************************************************************/	1016	/*****************************************************************************/
850		1017
…		…
866	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	1033	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
867	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	1034	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
868	#define UPHEAP_DONE(p,k) ((p) == (k))	1035	#define UPHEAP_DONE(p,k) ((p) == (k))
869		1036
870	/* away from the root */	1037	/* away from the root */
871	void inline_speed	1038	inline_speed void
872	downheap (ANHE *heap, int N, int k)	1039	downheap (ANHE *heap, int N, int k)
873	{	1040	{
874	ANHE he = heap [k];	1041	ANHE he = heap [k];
875	ANHE *E = heap + N + HEAP0;	1042	ANHE *E = heap + N + HEAP0;
876		1043
…		…
916	#define HEAP0 1	1083	#define HEAP0 1
917	#define HPARENT(k) ((k) >> 1)	1084	#define HPARENT(k) ((k) >> 1)
918	#define UPHEAP_DONE(p,k) (!(p))	1085	#define UPHEAP_DONE(p,k) (!(p))
919		1086
920	/* away from the root */	1087	/* away from the root */
921	void inline_speed	1088	inline_speed void
922	downheap (ANHE *heap, int N, int k)	1089	downheap (ANHE *heap, int N, int k)
923	{	1090	{
924	ANHE he = heap [k];	1091	ANHE he = heap [k];
925		1092
926	for (;;)	1093	for (;;)
927	{	1094	{
928	int c = k << 1;	1095	int c = k << 1;
929		1096
930	if (c > N + HEAP0 - 1)	1097	if (c >= N + HEAP0)
931	break;	1098	break;
932		1099
933	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1100	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
934	? 1 : 0;	1101	? 1 : 0;
935		1102
…		…
946	ev_active (ANHE_w (he)) = k;	1113	ev_active (ANHE_w (he)) = k;
947	}	1114	}
948	#endif	1115	#endif
949		1116
950	/* towards the root */	1117	/* towards the root */
951	void inline_speed	1118	inline_speed void
952	upheap (ANHE *heap, int k)	1119	upheap (ANHE *heap, int k)
953	{	1120	{
954	ANHE he = heap [k];	1121	ANHE he = heap [k];
955		1122
956	for (;;)	1123	for (;;)
…		…
967		1134
968	heap [k] = he;	1135	heap [k] = he;
969	ev_active (ANHE_w (he)) = k;	1136	ev_active (ANHE_w (he)) = k;
970	}	1137	}
971		1138
972	void inline_size	1139	/* move an element suitably so it is in a correct place */
		1140	inline_size void
973	adjustheap (ANHE *heap, int N, int k)	1141	adjustheap (ANHE *heap, int N, int k)
974	{	1142	{
975	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1143	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
976	upheap (heap, k);	1144	upheap (heap, k);
977	else	1145	else
978	downheap (heap, N, k);	1146	downheap (heap, N, k);
979	}	1147	}
980		1148
981	/* rebuild the heap: this function is used only once and executed rarely */	1149	/* rebuild the heap: this function is used only once and executed rarely */
982	void inline_size	1150	inline_size void
983	reheap (ANHE *heap, int N)	1151	reheap (ANHE *heap, int N)
984	{	1152	{
985	int i;	1153	int i;
986		1154
987	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */	1155	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
…		…
990	upheap (heap, i + HEAP0);	1158	upheap (heap, i + HEAP0);
991	}	1159	}
992		1160
993	/*****************************************************************************/	1161	/*****************************************************************************/
994		1162
		1163	/* associate signal watchers to a signal signal */
995	typedef struct	1164	typedef struct
996	{	1165	{
		1166	EV_ATOMIC_T pending;
		1167	#if EV_MULTIPLICITY
		1168	EV_P;
		1169	#endif
997	WL head;	1170	WL head;
998	EV_ATOMIC_T gotsig;
999	} ANSIG;	1171	} ANSIG;
1000		1172
1001	static ANSIG *signals;	1173	static ANSIG signals [EV_NSIG - 1];
1002	static int signalmax;
1003
1004	static EV_ATOMIC_T gotsig;
1005		1174
1006	/*****************************************************************************/	1175	/*****************************************************************************/
1007		1176
1008	void inline_speed	1177	/* used to prepare libev internal fd's */
		1178	/* this is not fork-safe */
		1179	inline_speed void
1009	fd_intern (int fd)	1180	fd_intern (int fd)
1010	{	1181	{
1011	#ifdef _WIN32	1182	#ifdef _WIN32
1012	unsigned long arg = 1;	1183	unsigned long arg = 1;
1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1184	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
1018	}	1189	}
1019		1190
1020	static void noinline	1191	static void noinline
1021	evpipe_init (EV_P)	1192	evpipe_init (EV_P)
1022	{	1193	{
1023	if (!ev_is_active (&pipeev))	1194	if (!ev_is_active (&pipe_w))
1024	{	1195	{
1025	#if EV_USE_EVENTFD	1196	#if EV_USE_EVENTFD
		1197	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1198	if (evfd < 0 && errno == EINVAL)
1026	if ((evfd = eventfd (0, 0)) >= 0)	1199	evfd = eventfd (0, 0);
		1200
		1201	if (evfd >= 0)
1027	{	1202	{
1028	evpipe [0] = -1;	1203	evpipe [0] = -1;
1029	fd_intern (evfd);	1204	fd_intern (evfd); /* doing it twice doesn't hurt */
1030	ev_io_set (&pipeev, evfd, EV_READ);	1205	ev_io_set (&pipe_w, evfd, EV_READ);
1031	}	1206	}
1032	else	1207	else
1033	#endif	1208	#endif
1034	{	1209	{
1035	while (pipe (evpipe))	1210	while (pipe (evpipe))
1036	ev_syserr ("(libev) error creating signal/async pipe");	1211	ev_syserr ("(libev) error creating signal/async pipe");
1037		1212
1038	fd_intern (evpipe [0]);	1213	fd_intern (evpipe [0]);
1039	fd_intern (evpipe [1]);	1214	fd_intern (evpipe [1]);
1040	ev_io_set (&pipeev, evpipe [0], EV_READ);	1215	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1041	}	1216	}
1042		1217
1043	ev_io_start (EV_A_ &pipeev);	1218	ev_io_start (EV_A_ &pipe_w);
1044	ev_unref (EV_A); /* watcher should not keep loop alive */	1219	ev_unref (EV_A); /* watcher should not keep loop alive */
1045	}	1220	}
1046	}	1221	}
1047		1222
1048	void inline_size	1223	inline_size void
1049	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1224	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1050	{	1225	{
1051	if (!*flag)	1226	if (!*flag)
1052	{	1227	{
1053	int old_errno = errno; /* save errno because write might clobber it */	1228	int old_errno = errno; /* save errno because write might clobber it */
…		…
1066		1241
1067	errno = old_errno;	1242	errno = old_errno;
1068	}	1243	}
1069	}	1244	}
1070		1245
		1246	/* called whenever the libev signal pipe */
		1247	/* got some events (signal, async) */
1071	static void	1248	static void
1072	pipecb (EV_P_ ev_io *iow, int revents)	1249	pipecb (EV_P_ ev_io *iow, int revents)
1073	{	1250	{
		1251	int i;
		1252
1074	#if EV_USE_EVENTFD	1253	#if EV_USE_EVENTFD
1075	if (evfd >= 0)	1254	if (evfd >= 0)
1076	{	1255	{
1077	uint64_t counter;	1256	uint64_t counter;
1078	read (evfd, &counter, sizeof (uint64_t));	1257	read (evfd, &counter, sizeof (uint64_t));
…		…
1082	{	1261	{
1083	char dummy;	1262	char dummy;
1084	read (evpipe [0], &dummy, 1);	1263	read (evpipe [0], &dummy, 1);
1085	}	1264	}
1086		1265
1087	if (gotsig && ev_is_default_loop (EV_A))	1266	if (sig_pending)
1088	{	1267	{
1089	int signum;	1268	sig_pending = 0;
1090	gotsig = 0;
1091		1269
1092	for (signum = signalmax; signum--; )	1270	for (i = EV_NSIG - 1; i--; )
1093	if (signals [signum].gotsig)	1271	if (expect_false (signals [i].pending))
1094	ev_feed_signal_event (EV_A_ signum + 1);	1272	ev_feed_signal_event (EV_A_ i + 1);
1095	}	1273	}
1096		1274
1097	#if EV_ASYNC_ENABLE	1275	#if EV_ASYNC_ENABLE
1098	if (gotasync)	1276	if (async_pending)
1099	{	1277	{
1100	int i;	1278	async_pending = 0;
1101	gotasync = 0;
1102		1279
1103	for (i = asynccnt; i--; )	1280	for (i = asynccnt; i--; )
1104	if (asyncs [i]->sent)	1281	if (asyncs [i]->sent)
1105	{	1282	{
1106	asyncs [i]->sent = 0;	1283	asyncs [i]->sent = 0;
…		…
1114		1291
1115	static void	1292	static void
1116	ev_sighandler (int signum)	1293	ev_sighandler (int signum)
1117	{	1294	{
1118	#if EV_MULTIPLICITY	1295	#if EV_MULTIPLICITY
1119	struct ev_loop *loop = &default_loop_struct;	1296	EV_P = signals [signum - 1].loop;
1120	#endif	1297	#endif
1121		1298
1122	#if _WIN32	1299	#if _WIN32
1123	signal (signum, ev_sighandler);	1300	signal (signum, ev_sighandler);
1124	#endif	1301	#endif
1125		1302
1126	signals [signum - 1].gotsig = 1;	1303	signals [signum - 1].pending = 1;
1127	evpipe_write (EV_A_ &gotsig);	1304	evpipe_write (EV_A_ &sig_pending);
1128	}	1305	}
1129		1306
1130	void noinline	1307	void noinline
1131	ev_feed_signal_event (EV_P_ int signum)	1308	ev_feed_signal_event (EV_P_ int signum)
1132	{	1309	{
1133	WL w;	1310	WL w;
1134		1311
		1312	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1313	return;
		1314
		1315	--signum;
		1316
1135	#if EV_MULTIPLICITY	1317	#if EV_MULTIPLICITY
1136	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1318	/* it is permissible to try to feed a signal to the wrong loop */
1137	#endif	1319	/* or, likely more useful, feeding a signal nobody is waiting for */
1138		1320
1139	--signum;	1321	if (expect_false (signals [signum].loop != EV_A))
1140
1141	if (signum < 0 || signum >= signalmax)
1142	return;	1322	return;
		1323	#endif
1143		1324
1144	signals [signum].gotsig = 0;	1325	signals [signum].pending = 0;
1145		1326
1146	for (w = signals [signum].head; w; w = w->next)	1327	for (w = signals [signum].head; w; w = w->next)
1147	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1328	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1148	}	1329	}
1149		1330
		1331	#if EV_USE_SIGNALFD
		1332	static void
		1333	sigfdcb (EV_P_ ev_io *iow, int revents)
		1334	{
		1335	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1336
		1337	for (;;)
		1338	{
		1339	ssize_t res = read (sigfd, si, sizeof (si));
		1340
		1341	/* not ISO-C, as res might be -1, but works with SuS */
		1342	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1343	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1344
		1345	if (res < (ssize_t)sizeof (si))
		1346	break;
		1347	}
		1348	}
		1349	#endif
		1350
1150	/*****************************************************************************/	1351	/*****************************************************************************/
1151		1352
1152	static WL childs [EV_PID_HASHSIZE];	1353	static WL childs [EV_PID_HASHSIZE];
1153		1354
1154	#ifndef _WIN32	1355	#ifndef _WIN32
…		…
1157		1358
1158	#ifndef WIFCONTINUED	1359	#ifndef WIFCONTINUED
1159	# define WIFCONTINUED(status) 0	1360	# define WIFCONTINUED(status) 0
1160	#endif	1361	#endif
1161		1362
1162	void inline_speed	1363	/* handle a single child status event */
		1364	inline_speed void
1163	child_reap (EV_P_ int chain, int pid, int status)	1365	child_reap (EV_P_ int chain, int pid, int status)
1164	{	1366	{
1165	ev_child *w;	1367	ev_child *w;
1166	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1368	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1167		1369
…		…
1180		1382
1181	#ifndef WCONTINUED	1383	#ifndef WCONTINUED
1182	# define WCONTINUED 0	1384	# define WCONTINUED 0
1183	#endif	1385	#endif
1184		1386
		1387	/* called on sigchld etc., calls waitpid */
1185	static void	1388	static void
1186	childcb (EV_P_ ev_signal *sw, int revents)	1389	childcb (EV_P_ ev_signal *sw, int revents)
1187	{	1390	{
1188	int pid, status;	1391	int pid, status;
1189		1392
…		…
1296	ev_backend (EV_P)	1499	ev_backend (EV_P)
1297	{	1500	{
1298	return backend;	1501	return backend;
1299	}	1502	}
1300		1503
		1504	#if EV_MINIMAL < 2
1301	unsigned int	1505	unsigned int
1302	ev_loop_count (EV_P)	1506	ev_loop_count (EV_P)
1303	{	1507	{
1304	return loop_count;	1508	return loop_count;
1305	}	1509	}
1306		1510
		1511	unsigned int
		1512	ev_loop_depth (EV_P)
		1513	{
		1514	return loop_depth;
		1515	}
		1516
1307	void	1517	void
1308	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1518	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1309	{	1519	{
1310	io_blocktime = interval;	1520	io_blocktime = interval;
1311	}	1521	}
…		…
1314	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1524	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1315	{	1525	{
1316	timeout_blocktime = interval;	1526	timeout_blocktime = interval;
1317	}	1527	}
1318		1528
		1529	void
		1530	ev_set_userdata (EV_P_ void *data)
		1531	{
		1532	userdata = data;
		1533	}
		1534
		1535	void *
		1536	ev_userdata (EV_P)
		1537	{
		1538	return userdata;
		1539	}
		1540
		1541	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1542	{
		1543	invoke_cb = invoke_pending_cb;
		1544	}
		1545
		1546	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1547	{
		1548	release_cb = release;
		1549	acquire_cb = acquire;
		1550	}
		1551	#endif
		1552
		1553	/* initialise a loop structure, must be zero-initialised */
1319	static void noinline	1554	static void noinline
1320	loop_init (EV_P_ unsigned int flags)	1555	loop_init (EV_P_ unsigned int flags)
1321	{	1556	{
1322	if (!backend)	1557	if (!backend)
1323	{	1558	{
		1559	#if EV_USE_REALTIME
		1560	if (!have_realtime)
		1561	{
		1562	struct timespec ts;
		1563
		1564	if (!clock_gettime (CLOCK_REALTIME, &ts))
		1565	have_realtime = 1;
		1566	}
		1567	#endif
		1568
1324	#if EV_USE_MONOTONIC	1569	#if EV_USE_MONOTONIC
		1570	if (!have_monotonic)
1325	{	1571	{
1326	struct timespec ts;	1572	struct timespec ts;
		1573
1327	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1574	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1328	have_monotonic = 1;	1575	have_monotonic = 1;
1329	}	1576	}
1330	#endif	1577	#endif
		1578
		1579	/* pid check not overridable via env */
		1580	#ifndef _WIN32
		1581	if (flags & EVFLAG_FORKCHECK)
		1582	curpid = getpid ();
		1583	#endif
		1584
		1585	if (!(flags & EVFLAG_NOENV)
		1586	&& !enable_secure ()
		1587	&& getenv ("LIBEV_FLAGS"))
		1588	flags = atoi (getenv ("LIBEV_FLAGS"));
1331		1589
1332	ev_rt_now = ev_time ();	1590	ev_rt_now = ev_time ();
1333	mn_now = get_clock ();	1591	mn_now = get_clock ();
1334	now_floor = mn_now;	1592	now_floor = mn_now;
1335	rtmn_diff = ev_rt_now - mn_now;	1593	rtmn_diff = ev_rt_now - mn_now;
		1594	#if EV_MINIMAL < 2
		1595	invoke_cb = ev_invoke_pending;
		1596	#endif
1336		1597
1337	io_blocktime = 0.;	1598	io_blocktime = 0.;
1338	timeout_blocktime = 0.;	1599	timeout_blocktime = 0.;
1339	backend = 0;	1600	backend = 0;
1340	backend_fd = -1;	1601	backend_fd = -1;
1341	gotasync = 0;	1602	sig_pending = 0;
		1603	#if EV_ASYNC_ENABLE
		1604	async_pending = 0;
		1605	#endif
1342	#if EV_USE_INOTIFY	1606	#if EV_USE_INOTIFY
1343	fs_fd = -2;	1607	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1344	#endif	1608	#endif
1345		1609	#if EV_USE_SIGNALFD
1346	/* pid check not overridable via env */	1610	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1347	#ifndef _WIN32
1348	if (flags & EVFLAG_FORKCHECK)
1349	curpid = getpid ();
1350	#endif	1611	#endif
1351
1352	if (!(flags & EVFLAG_NOENV)
1353	&& !enable_secure ()
1354	&& getenv ("LIBEV_FLAGS"))
1355	flags = atoi (getenv ("LIBEV_FLAGS"));
1356		1612
1357	if (!(flags & 0x0000ffffU))	1613	if (!(flags & 0x0000ffffU))
1358	flags |= ev_recommended_backends ();	1614	flags |= ev_recommended_backends ();
1359		1615
1360	#if EV_USE_PORT	1616	#if EV_USE_PORT
…		…
1371	#endif	1627	#endif
1372	#if EV_USE_SELECT	1628	#if EV_USE_SELECT
1373	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1629	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1374	#endif	1630	#endif
1375		1631
		1632	ev_prepare_init (&pending_w, pendingcb);
		1633
1376	ev_init (&pipeev, pipecb);	1634	ev_init (&pipe_w, pipecb);
1377	ev_set_priority (&pipeev, EV_MAXPRI);	1635	ev_set_priority (&pipe_w, EV_MAXPRI);
1378	}	1636	}
1379	}	1637	}
1380		1638
		1639	/* free up a loop structure */
1381	static void noinline	1640	static void noinline
1382	loop_destroy (EV_P)	1641	loop_destroy (EV_P)
1383	{	1642	{
1384	int i;	1643	int i;
1385		1644
1386	if (ev_is_active (&pipeev))	1645	if (ev_is_active (&pipe_w))
1387	{	1646	{
1388	ev_ref (EV_A); /* signal watcher */	1647	/*ev_ref (EV_A);*/
1389	ev_io_stop (EV_A_ &pipeev);	1648	/*ev_io_stop (EV_A_ &pipe_w);*/
1390		1649
1391	#if EV_USE_EVENTFD	1650	#if EV_USE_EVENTFD
1392	if (evfd >= 0)	1651	if (evfd >= 0)
1393	close (evfd);	1652	close (evfd);
1394	#endif	1653	#endif
1395		1654
1396	if (evpipe [0] >= 0)	1655	if (evpipe [0] >= 0)
1397	{	1656	{
1398	close (evpipe [0]);	1657	EV_WIN32_CLOSE_FD (evpipe [0]);
1399	close (evpipe [1]);	1658	EV_WIN32_CLOSE_FD (evpipe [1]);
1400	}	1659	}
1401	}	1660	}
		1661
		1662	#if EV_USE_SIGNALFD
		1663	if (ev_is_active (&sigfd_w))
		1664	{
		1665	/*ev_ref (EV_A);*/
		1666	/*ev_io_stop (EV_A_ &sigfd_w);*/
		1667
		1668	close (sigfd);
		1669	}
		1670	#endif
1402		1671
1403	#if EV_USE_INOTIFY	1672	#if EV_USE_INOTIFY
1404	if (fs_fd >= 0)	1673	if (fs_fd >= 0)
1405	close (fs_fd);	1674	close (fs_fd);
1406	#endif	1675	#endif
…		…
1430	#if EV_IDLE_ENABLE	1699	#if EV_IDLE_ENABLE
1431	array_free (idle, [i]);	1700	array_free (idle, [i]);
1432	#endif	1701	#endif
1433	}	1702	}
1434		1703
1435	ev_free (anfds); anfdmax = 0;	1704	ev_free (anfds); anfds = 0; anfdmax = 0;
1436		1705
1437	/* have to use the microsoft-never-gets-it-right macro */	1706	/* have to use the microsoft-never-gets-it-right macro */
		1707	array_free (rfeed, EMPTY);
1438	array_free (fdchange, EMPTY);	1708	array_free (fdchange, EMPTY);
1439	array_free (timer, EMPTY);	1709	array_free (timer, EMPTY);
1440	#if EV_PERIODIC_ENABLE	1710	#if EV_PERIODIC_ENABLE
1441	array_free (periodic, EMPTY);	1711	array_free (periodic, EMPTY);
1442	#endif	1712	#endif
…		…
1451		1721
1452	backend = 0;	1722	backend = 0;
1453	}	1723	}
1454		1724
1455	#if EV_USE_INOTIFY	1725	#if EV_USE_INOTIFY
1456	void inline_size infy_fork (EV_P);	1726	inline_size void infy_fork (EV_P);
1457	#endif	1727	#endif
1458		1728
1459	void inline_size	1729	inline_size void
1460	loop_fork (EV_P)	1730	loop_fork (EV_P)
1461	{	1731	{
1462	#if EV_USE_PORT	1732	#if EV_USE_PORT
1463	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1733	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1464	#endif	1734	#endif
…		…
1470	#endif	1740	#endif
1471	#if EV_USE_INOTIFY	1741	#if EV_USE_INOTIFY
1472	infy_fork (EV_A);	1742	infy_fork (EV_A);
1473	#endif	1743	#endif
1474		1744
1475	if (ev_is_active (&pipeev))	1745	if (ev_is_active (&pipe_w))
1476	{	1746	{
1477	/* this "locks" the handlers against writing to the pipe */	1747	/* this "locks" the handlers against writing to the pipe */
1478	/* while we modify the fd vars */	1748	/* while we modify the fd vars */
1479	gotsig = 1;	1749	sig_pending = 1;
1480	#if EV_ASYNC_ENABLE	1750	#if EV_ASYNC_ENABLE
1481	gotasync = 1;	1751	async_pending = 1;
1482	#endif	1752	#endif
1483		1753
1484	ev_ref (EV_A);	1754	ev_ref (EV_A);
1485	ev_io_stop (EV_A_ &pipeev);	1755	ev_io_stop (EV_A_ &pipe_w);
1486		1756
1487	#if EV_USE_EVENTFD	1757	#if EV_USE_EVENTFD
1488	if (evfd >= 0)	1758	if (evfd >= 0)
1489	close (evfd);	1759	close (evfd);
1490	#endif	1760	#endif
1491		1761
1492	if (evpipe [0] >= 0)	1762	if (evpipe [0] >= 0)
1493	{	1763	{
1494	close (evpipe [0]);	1764	EV_WIN32_CLOSE_FD (evpipe [0]);
1495	close (evpipe [1]);	1765	EV_WIN32_CLOSE_FD (evpipe [1]);
1496	}	1766	}
1497		1767
1498	evpipe_init (EV_A);	1768	evpipe_init (EV_A);
1499	/* now iterate over everything, in case we missed something */	1769	/* now iterate over everything, in case we missed something */
1500	pipecb (EV_A_ &pipeev, EV_READ);	1770	pipecb (EV_A_ &pipe_w, EV_READ);
1501	}	1771	}
1502		1772
1503	postfork = 0;	1773	postfork = 0;
1504	}	1774	}
1505		1775
1506	#if EV_MULTIPLICITY	1776	#if EV_MULTIPLICITY
1507		1777
1508	struct ev_loop *	1778	struct ev_loop *
1509	ev_loop_new (unsigned int flags)	1779	ev_loop_new (unsigned int flags)
1510	{	1780	{
1511	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1781	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1512		1782
1513	memset (loop, 0, sizeof (struct ev_loop));	1783	memset (EV_A, 0, sizeof (struct ev_loop));
1514
1515	loop_init (EV_A_ flags);	1784	loop_init (EV_A_ flags);
1516		1785
1517	if (ev_backend (EV_A))	1786	if (ev_backend (EV_A))
1518	return loop;	1787	return EV_A;
1519		1788
1520	return 0;	1789	return 0;
1521	}	1790	}
1522		1791
1523	void	1792	void
…		…
1530	void	1799	void
1531	ev_loop_fork (EV_P)	1800	ev_loop_fork (EV_P)
1532	{	1801	{
1533	postfork = 1; /* must be in line with ev_default_fork */	1802	postfork = 1; /* must be in line with ev_default_fork */
1534	}	1803	}
		1804	#endif /* multiplicity */
1535		1805
1536	#if EV_VERIFY	1806	#if EV_VERIFY
1537	static void noinline	1807	static void noinline
1538	verify_watcher (EV_P_ W w)	1808	verify_watcher (EV_P_ W w)
1539	{	1809	{
…		…
1567	verify_watcher (EV_A_ ws [cnt]);	1837	verify_watcher (EV_A_ ws [cnt]);
1568	}	1838	}
1569	}	1839	}
1570	#endif	1840	#endif
1571		1841
		1842	#if EV_MINIMAL < 2
1572	void	1843	void
1573	ev_loop_verify (EV_P)	1844	ev_loop_verify (EV_P)
1574	{	1845	{
1575	#if EV_VERIFY	1846	#if EV_VERIFY
1576	int i;	1847	int i;
…		…
1625	assert (checkmax >= checkcnt);	1896	assert (checkmax >= checkcnt);
1626	array_verify (EV_A_ (W *)checks, checkcnt);	1897	array_verify (EV_A_ (W *)checks, checkcnt);
1627		1898
1628	# if 0	1899	# if 0
1629	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1900	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)	1901	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1631	# endif
1632	#endif	1902	# endif
		1903	#endif
1633	}	1904	}
1634		1905	#endif
1635	#endif /* multiplicity */
1636		1906
1637	#if EV_MULTIPLICITY	1907	#if EV_MULTIPLICITY
1638	struct ev_loop *	1908	struct ev_loop *
1639	ev_default_loop_init (unsigned int flags)	1909	ev_default_loop_init (unsigned int flags)
1640	#else	1910	#else
…		…
1643	#endif	1913	#endif
1644	{	1914	{
1645	if (!ev_default_loop_ptr)	1915	if (!ev_default_loop_ptr)
1646	{	1916	{
1647	#if EV_MULTIPLICITY	1917	#if EV_MULTIPLICITY
1648	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1918	EV_P = ev_default_loop_ptr = &default_loop_struct;
1649	#else	1919	#else
1650	ev_default_loop_ptr = 1;	1920	ev_default_loop_ptr = 1;
1651	#endif	1921	#endif
1652		1922
1653	loop_init (EV_A_ flags);	1923	loop_init (EV_A_ flags);
…		…
1670		1940
1671	void	1941	void
1672	ev_default_destroy (void)	1942	ev_default_destroy (void)
1673	{	1943	{
1674	#if EV_MULTIPLICITY	1944	#if EV_MULTIPLICITY
1675	struct ev_loop *loop = ev_default_loop_ptr;	1945	EV_P = ev_default_loop_ptr;
1676	#endif	1946	#endif
1677		1947
1678	ev_default_loop_ptr = 0;	1948	ev_default_loop_ptr = 0;
1679		1949
1680	#ifndef _WIN32	1950	#ifndef _WIN32
…		…
1687		1957
1688	void	1958	void
1689	ev_default_fork (void)	1959	ev_default_fork (void)
1690	{	1960	{
1691	#if EV_MULTIPLICITY	1961	#if EV_MULTIPLICITY
1692	struct ev_loop *loop = ev_default_loop_ptr;	1962	EV_P = ev_default_loop_ptr;
1693	#endif	1963	#endif
1694		1964
1695	postfork = 1; /* must be in line with ev_loop_fork */	1965	postfork = 1; /* must be in line with ev_loop_fork */
1696	}	1966	}
1697		1967
…		…
1701	ev_invoke (EV_P_ void *w, int revents)	1971	ev_invoke (EV_P_ void *w, int revents)
1702	{	1972	{
1703	EV_CB_INVOKE ((W)w, revents);	1973	EV_CB_INVOKE ((W)w, revents);
1704	}	1974	}
1705		1975
1706	void inline_speed	1976	unsigned int
1707	call_pending (EV_P)	1977	ev_pending_count (EV_P)
		1978	{
		1979	int pri;
		1980	unsigned int count = 0;
		1981
		1982	for (pri = NUMPRI; pri--; )
		1983	count += pendingcnt [pri];
		1984
		1985	return count;
		1986	}
		1987
		1988	void noinline
		1989	ev_invoke_pending (EV_P)
1708	{	1990	{
1709	int pri;	1991	int pri;
1710		1992
1711	for (pri = NUMPRI; pri--; )	1993	for (pri = NUMPRI; pri--; )
1712	while (pendingcnt [pri])	1994	while (pendingcnt [pri])
1713	{	1995	{
1714	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1996	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1715		1997
1716	if (expect_true (p->w))
1717	{
1718	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	1998	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		1999	/* ^ this is no longer true, as pending_w could be here */
1719		2000
1720	p->w->pending = 0;	2001	p->w->pending = 0;
1721	EV_CB_INVOKE (p->w, p->events);	2002	EV_CB_INVOKE (p->w, p->events);
1722	EV_FREQUENT_CHECK;	2003	EV_FREQUENT_CHECK;
1723	}
1724	}	2004	}
1725	}	2005	}
1726		2006
1727	#if EV_IDLE_ENABLE	2007	#if EV_IDLE_ENABLE
1728	void inline_size	2008	/* make idle watchers pending. this handles the "call-idle */
		2009	/* only when higher priorities are idle" logic */
		2010	inline_size void
1729	idle_reify (EV_P)	2011	idle_reify (EV_P)
1730	{	2012	{
1731	if (expect_false (idleall))	2013	if (expect_false (idleall))
1732	{	2014	{
1733	int pri;	2015	int pri;
…		…
1745	}	2027	}
1746	}	2028	}
1747	}	2029	}
1748	#endif	2030	#endif
1749		2031
1750	void inline_size	2032	/* make timers pending */
		2033	inline_size void
1751	timers_reify (EV_P)	2034	timers_reify (EV_P)
1752	{	2035	{
1753	EV_FREQUENT_CHECK;	2036	EV_FREQUENT_CHECK;
1754		2037
1755	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	2038	if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1756	{	2039	{
1757	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	2040	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	{	2041	{
		2042	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		2043
		2044	/*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
		2045
		2046	/* first reschedule or stop timer */
		2047	if (w->repeat)
		2048	{
1764	ev_at (w) += w->repeat;	2049	ev_at (w) += w->repeat;
1765	if (ev_at (w) < mn_now)	2050	if (ev_at (w) < mn_now)
1766	ev_at (w) = mn_now;	2051	ev_at (w) = mn_now;
1767		2052
1768	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));	2053	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1769		2054
1770	ANHE_at_cache (timers [HEAP0]);	2055	ANHE_at_cache (timers [HEAP0]);
1771	downheap (timers, timercnt, HEAP0);	2056	downheap (timers, timercnt, HEAP0);
		2057	}
		2058	else
		2059	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		2060
		2061	EV_FREQUENT_CHECK;
		2062	feed_reverse (EV_A_ (W)w);
1772	}	2063	}
1773	else	2064	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1774	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1775		2065
1776	EV_FREQUENT_CHECK;
1777	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	2066	feed_reverse_done (EV_A_ EV_TIMEOUT);
1778	}	2067	}
1779	}	2068	}
1780		2069
1781	#if EV_PERIODIC_ENABLE	2070	#if EV_PERIODIC_ENABLE
1782	void inline_size	2071	/* make periodics pending */
		2072	inline_size void
1783	periodics_reify (EV_P)	2073	periodics_reify (EV_P)
1784	{	2074	{
1785	EV_FREQUENT_CHECK;	2075	EV_FREQUENT_CHECK;
1786		2076
1787	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2077	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1788	{	2078	{
1789	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2079	int feed_count = 0;
1790		2080
1791	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2081	do
1792
1793	/* first reschedule or stop timer */
1794	if (w->reschedule_cb)
1795	{	2082	{
		2083	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		2084
		2085	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
		2086
		2087	/* first reschedule or stop timer */
		2088	if (w->reschedule_cb)
		2089	{
1796	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2090	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1797		2091
1798	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	2092	assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1799		2093
1800	ANHE_at_cache (periodics [HEAP0]);	2094	ANHE_at_cache (periodics [HEAP0]);
1801	downheap (periodics, periodiccnt, HEAP0);	2095	downheap (periodics, periodiccnt, HEAP0);
		2096	}
		2097	else if (w->interval)
		2098	{
		2099	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2100	/* if next trigger time is not sufficiently in the future, put it there */
		2101	/* this might happen because of floating point inexactness */
		2102	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		2103	{
		2104	ev_at (w) += w->interval;
		2105
		2106	/* if interval is unreasonably low we might still have a time in the past */
		2107	/* so correct this. this will make the periodic very inexact, but the user */
		2108	/* has effectively asked to get triggered more often than possible */
		2109	if (ev_at (w) < ev_rt_now)
		2110	ev_at (w) = ev_rt_now;
		2111	}
		2112
		2113	ANHE_at_cache (periodics [HEAP0]);
		2114	downheap (periodics, periodiccnt, HEAP0);
		2115	}
		2116	else
		2117	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		2118
		2119	EV_FREQUENT_CHECK;
		2120	feed_reverse (EV_A_ (W)w);
1802	}	2121	}
1803	else if (w->interval)	2122	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		2123
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);	2124	feed_reverse_done (EV_A_ EV_PERIODIC);
1827	}	2125	}
1828	}	2126	}
1829		2127
		2128	/* simply recalculate all periodics */
		2129	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1830	static void noinline	2130	static void noinline
1831	periodics_reschedule (EV_P)	2131	periodics_reschedule (EV_P)
1832	{	2132	{
1833	int i;	2133	int i;
1834		2134
…		…
1847		2147
1848	reheap (periodics, periodiccnt);	2148	reheap (periodics, periodiccnt);
1849	}	2149	}
1850	#endif	2150	#endif
1851		2151
1852	void inline_speed	2152	/* adjust all timers by a given offset */
		2153	static void noinline
		2154	timers_reschedule (EV_P_ ev_tstamp adjust)
		2155	{
		2156	int i;
		2157
		2158	for (i = 0; i < timercnt; ++i)
		2159	{
		2160	ANHE *he = timers + i + HEAP0;
		2161	ANHE_w (*he)->at += adjust;
		2162	ANHE_at_cache (*he);
		2163	}
		2164	}
		2165
		2166	/* fetch new monotonic and realtime times from the kernel */
		2167	/* also detetc if there was a timejump, and act accordingly */
		2168	inline_speed void
1853	time_update (EV_P_ ev_tstamp max_block)	2169	time_update (EV_P_ ev_tstamp max_block)
1854	{	2170	{
1855	int i;
1856
1857	#if EV_USE_MONOTONIC	2171	#if EV_USE_MONOTONIC
1858	if (expect_true (have_monotonic))	2172	if (expect_true (have_monotonic))
1859	{	2173	{
		2174	int i;
1860	ev_tstamp odiff = rtmn_diff;	2175	ev_tstamp odiff = rtmn_diff;
1861		2176
1862	mn_now = get_clock ();	2177	mn_now = get_clock ();
1863		2178
1864	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2179	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1890	ev_rt_now = ev_time ();	2205	ev_rt_now = ev_time ();
1891	mn_now = get_clock ();	2206	mn_now = get_clock ();
1892	now_floor = mn_now;	2207	now_floor = mn_now;
1893	}	2208	}
1894		2209
		2210	/* no timer adjustment, as the monotonic clock doesn't jump */
		2211	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1895	# if EV_PERIODIC_ENABLE	2212	# if EV_PERIODIC_ENABLE
1896	periodics_reschedule (EV_A);	2213	periodics_reschedule (EV_A);
1897	# endif	2214	# endif
1898	/* no timer adjustment, as the monotonic clock doesn't jump */
1899	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1900	}	2215	}
1901	else	2216	else
1902	#endif	2217	#endif
1903	{	2218	{
1904	ev_rt_now = ev_time ();	2219	ev_rt_now = ev_time ();
1905		2220
1906	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	2221	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1907	{	2222	{
		2223	/* adjust timers. this is easy, as the offset is the same for all of them */
		2224	timers_reschedule (EV_A_ ev_rt_now - mn_now);
1908	#if EV_PERIODIC_ENABLE	2225	#if EV_PERIODIC_ENABLE
1909	periodics_reschedule (EV_A);	2226	periodics_reschedule (EV_A);
1910	#endif	2227	#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	}	2228	}
1919		2229
1920	mn_now = ev_rt_now;	2230	mn_now = ev_rt_now;
1921	}	2231	}
1922	}	2232	}
1923		2233
1924	void	2234	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)	2235	ev_loop (EV_P_ int flags)
1946	{	2236	{
		2237	#if EV_MINIMAL < 2
		2238	++loop_depth;
		2239	#endif
		2240
		2241	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2242
1947	loop_done = EVUNLOOP_CANCEL;	2243	loop_done = EVUNLOOP_CANCEL;
1948		2244
1949	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2245	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1950		2246
1951	do	2247	do
1952	{	2248	{
1953	#if EV_VERIFY >= 2	2249	#if EV_VERIFY >= 2
1954	ev_loop_verify (EV_A);	2250	ev_loop_verify (EV_A);
…		…
1967	/* we might have forked, so queue fork handlers */	2263	/* we might have forked, so queue fork handlers */
1968	if (expect_false (postfork))	2264	if (expect_false (postfork))
1969	if (forkcnt)	2265	if (forkcnt)
1970	{	2266	{
1971	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2267	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1972	call_pending (EV_A);	2268	EV_INVOKE_PENDING;
1973	}	2269	}
1974	#endif	2270	#endif
1975		2271
1976	/* queue prepare watchers (and execute them) */	2272	/* queue prepare watchers (and execute them) */
1977	if (expect_false (preparecnt))	2273	if (expect_false (preparecnt))
1978	{	2274	{
1979	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2275	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1980	call_pending (EV_A);	2276	EV_INVOKE_PENDING;
1981	}	2277	}
1982		2278
1983	if (expect_false (!activecnt))	2279	if (expect_false (loop_done))
1984	break;	2280	break;
1985		2281
1986	/* we might have forked, so reify kernel state if necessary */	2282	/* we might have forked, so reify kernel state if necessary */
1987	if (expect_false (postfork))	2283	if (expect_false (postfork))
1988	loop_fork (EV_A);	2284	loop_fork (EV_A);
…		…
1995	ev_tstamp waittime = 0.;	2291	ev_tstamp waittime = 0.;
1996	ev_tstamp sleeptime = 0.;	2292	ev_tstamp sleeptime = 0.;
1997		2293
1998	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2294	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1999	{	2295	{
		2296	/* remember old timestamp for io_blocktime calculation */
		2297	ev_tstamp prev_mn_now = mn_now;
		2298
2000	/* update time to cancel out callback processing overhead */	2299	/* update time to cancel out callback processing overhead */
2001	time_update (EV_A_ 1e100);	2300	time_update (EV_A_ 1e100);
2002		2301
2003	waittime = MAX_BLOCKTIME;	2302	waittime = MAX_BLOCKTIME;
2004		2303
…		…
2014	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2313	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2015	if (waittime > to) waittime = to;	2314	if (waittime > to) waittime = to;
2016	}	2315	}
2017	#endif	2316	#endif
2018		2317
		2318	/* don't let timeouts decrease the waittime below timeout_blocktime */
2019	if (expect_false (waittime < timeout_blocktime))	2319	if (expect_false (waittime < timeout_blocktime))
2020	waittime = timeout_blocktime;	2320	waittime = timeout_blocktime;
2021		2321
2022	sleeptime = waittime - backend_fudge;	2322	/* extra check because io_blocktime is commonly 0 */
2023
2024	if (expect_true (sleeptime > io_blocktime))	2323	if (expect_false (io_blocktime))
2025	sleeptime = io_blocktime;
2026
2027	if (sleeptime)
2028	{	2324	{
		2325	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2326
		2327	if (sleeptime > waittime - backend_fudge)
		2328	sleeptime = waittime - backend_fudge;
		2329
		2330	if (expect_true (sleeptime > 0.))
		2331	{
2029	ev_sleep (sleeptime);	2332	ev_sleep (sleeptime);
2030	waittime -= sleeptime;	2333	waittime -= sleeptime;
		2334	}
2031	}	2335	}
2032	}	2336	}
2033		2337
		2338	#if EV_MINIMAL < 2
2034	++loop_count;	2339	++loop_count;
		2340	#endif
		2341	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2035	backend_poll (EV_A_ waittime);	2342	backend_poll (EV_A_ waittime);
		2343	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2036		2344
2037	/* update ev_rt_now, do magic */	2345	/* update ev_rt_now, do magic */
2038	time_update (EV_A_ waittime + sleeptime);	2346	time_update (EV_A_ waittime + sleeptime);
2039	}	2347	}
2040		2348
…		…
2051		2359
2052	/* queue check watchers, to be executed first */	2360	/* queue check watchers, to be executed first */
2053	if (expect_false (checkcnt))	2361	if (expect_false (checkcnt))
2054	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2362	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2055		2363
2056	call_pending (EV_A);	2364	EV_INVOKE_PENDING;
2057	}	2365	}
2058	while (expect_true (	2366	while (expect_true (
2059	activecnt	2367	activecnt
2060	&& !loop_done	2368	&& !loop_done
2061	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2369	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2062	));	2370	));
2063		2371
2064	if (loop_done == EVUNLOOP_ONE)	2372	if (loop_done == EVUNLOOP_ONE)
2065	loop_done = EVUNLOOP_CANCEL;	2373	loop_done = EVUNLOOP_CANCEL;
		2374
		2375	#if EV_MINIMAL < 2
		2376	--loop_depth;
		2377	#endif
2066	}	2378	}
2067		2379
2068	void	2380	void
2069	ev_unloop (EV_P_ int how)	2381	ev_unloop (EV_P_ int how)
2070	{	2382	{
2071	loop_done = how;	2383	loop_done = how;
2072	}	2384	}
2073		2385
		2386	void
		2387	ev_ref (EV_P)
		2388	{
		2389	++activecnt;
		2390	}
		2391
		2392	void
		2393	ev_unref (EV_P)
		2394	{
		2395	--activecnt;
		2396	}
		2397
		2398	void
		2399	ev_now_update (EV_P)
		2400	{
		2401	time_update (EV_A_ 1e100);
		2402	}
		2403
		2404	void
		2405	ev_suspend (EV_P)
		2406	{
		2407	ev_now_update (EV_A);
		2408	}
		2409
		2410	void
		2411	ev_resume (EV_P)
		2412	{
		2413	ev_tstamp mn_prev = mn_now;
		2414
		2415	ev_now_update (EV_A);
		2416	timers_reschedule (EV_A_ mn_now - mn_prev);
		2417	#if EV_PERIODIC_ENABLE
		2418	/* TODO: really do this? */
		2419	periodics_reschedule (EV_A);
		2420	#endif
		2421	}
		2422
2074	/*****************************************************************************/	2423	/*****************************************************************************/
		2424	/* singly-linked list management, used when the expected list length is short */
2075		2425
2076	void inline_size	2426	inline_size void
2077	wlist_add (WL *head, WL elem)	2427	wlist_add (WL *head, WL elem)
2078	{	2428	{
2079	elem->next = *head;	2429	elem->next = *head;
2080	*head = elem;	2430	*head = elem;
2081	}	2431	}
2082		2432
2083	void inline_size	2433	inline_size void
2084	wlist_del (WL *head, WL elem)	2434	wlist_del (WL *head, WL elem)
2085	{	2435	{
2086	while (*head)	2436	while (*head)
2087	{	2437	{
2088	if (*head == elem)	2438	if (expect_true (*head == elem))
2089	{	2439	{
2090	*head = elem->next;	2440	*head = elem->next;
2091	return;	2441	break;
2092	}	2442	}
2093		2443
2094	head = &(*head)->next;	2444	head = &(*head)->next;
2095	}	2445	}
2096	}	2446	}
2097		2447
2098	void inline_speed	2448	/* internal, faster, version of ev_clear_pending */
		2449	inline_speed void
2099	clear_pending (EV_P_ W w)	2450	clear_pending (EV_P_ W w)
2100	{	2451	{
2101	if (w->pending)	2452	if (w->pending)
2102	{	2453	{
2103	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2454	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2104	w->pending = 0;	2455	w->pending = 0;
2105	}	2456	}
2106	}	2457	}
2107		2458
2108	int	2459	int
…		…
2112	int pending = w_->pending;	2463	int pending = w_->pending;
2113		2464
2114	if (expect_true (pending))	2465	if (expect_true (pending))
2115	{	2466	{
2116	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2467	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2468	p->w = (W)&pending_w;
2117	w_->pending = 0;	2469	w_->pending = 0;
2118	p->w = 0;
2119	return p->events;	2470	return p->events;
2120	}	2471	}
2121	else	2472	else
2122	return 0;	2473	return 0;
2123	}	2474	}
2124		2475
2125	void inline_size	2476	inline_size void
2126	pri_adjust (EV_P_ W w)	2477	pri_adjust (EV_P_ W w)
2127	{	2478	{
2128	int pri = w->priority;	2479	int pri = ev_priority (w);
2129	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2480	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2130	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2481	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2131	w->priority = pri;	2482	ev_set_priority (w, pri);
2132	}	2483	}
2133		2484
2134	void inline_speed	2485	inline_speed void
2135	ev_start (EV_P_ W w, int active)	2486	ev_start (EV_P_ W w, int active)
2136	{	2487	{
2137	pri_adjust (EV_A_ w);	2488	pri_adjust (EV_A_ w);
2138	w->active = active;	2489	w->active = active;
2139	ev_ref (EV_A);	2490	ev_ref (EV_A);
2140	}	2491	}
2141		2492
2142	void inline_size	2493	inline_size void
2143	ev_stop (EV_P_ W w)	2494	ev_stop (EV_P_ W w)
2144	{	2495	{
2145	ev_unref (EV_A);	2496	ev_unref (EV_A);
2146	w->active = 0;	2497	w->active = 0;
2147	}	2498	}
…		…
2155		2506
2156	if (expect_false (ev_is_active (w)))	2507	if (expect_false (ev_is_active (w)))
2157	return;	2508	return;
2158		2509
2159	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2510	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))));	2511	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2161		2512
2162	EV_FREQUENT_CHECK;	2513	EV_FREQUENT_CHECK;
2163		2514
2164	ev_start (EV_A_ (W)w, 1);	2515	ev_start (EV_A_ (W)w, 1);
2165	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2516	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2166	wlist_add (&anfds[fd].head, (WL)w);	2517	wlist_add (&anfds[fd].head, (WL)w);
2167		2518
2168	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2519	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2169	w->events &= ~EV_IOFDSET;	2520	w->events &= ~EV__IOFDSET;
2170		2521
2171	EV_FREQUENT_CHECK;	2522	EV_FREQUENT_CHECK;
2172	}	2523	}
2173		2524
2174	void noinline	2525	void noinline
…		…
2267	}	2618	}
2268		2619
2269	EV_FREQUENT_CHECK;	2620	EV_FREQUENT_CHECK;
2270	}	2621	}
2271		2622
		2623	ev_tstamp
		2624	ev_timer_remaining (EV_P_ ev_timer *w)
		2625	{
		2626	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2627	}
		2628
2272	#if EV_PERIODIC_ENABLE	2629	#if EV_PERIODIC_ENABLE
2273	void noinline	2630	void noinline
2274	ev_periodic_start (EV_P_ ev_periodic *w)	2631	ev_periodic_start (EV_P_ ev_periodic *w)
2275	{	2632	{
2276	if (expect_false (ev_is_active (w)))	2633	if (expect_false (ev_is_active (w)))
…		…
2343	#endif	2700	#endif
2344		2701
2345	void noinline	2702	void noinline
2346	ev_signal_start (EV_P_ ev_signal *w)	2703	ev_signal_start (EV_P_ ev_signal *w)
2347	{	2704	{
2348	#if EV_MULTIPLICITY
2349	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2350	#endif
2351	if (expect_false (ev_is_active (w)))	2705	if (expect_false (ev_is_active (w)))
2352	return;	2706	return;
2353		2707
2354	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2708	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2355		2709
2356	evpipe_init (EV_A);	2710	#if EV_MULTIPLICITY
		2711	assert (("libev: a signal must not be attached to two different loops",
		2712	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2357		2713
2358	EV_FREQUENT_CHECK;	2714	signals [w->signum - 1].loop = EV_A;
		2715	#endif
2359		2716
		2717	EV_FREQUENT_CHECK;
		2718
		2719	#if EV_USE_SIGNALFD
		2720	if (sigfd == -2)
2360	{	2721	{
2361	#ifndef _WIN32	2722	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2362	sigset_t full, prev;	2723	if (sigfd < 0 && errno == EINVAL)
2363	sigfillset (&full);	2724	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2364	sigprocmask (SIG_SETMASK, &full, &prev);
2365	#endif
2366		2725
2367	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2726	if (sigfd >= 0)
		2727	{
		2728	fd_intern (sigfd); /* doing it twice will not hurt */
2368		2729
2369	#ifndef _WIN32	2730	sigemptyset (&sigfd_set);
2370	sigprocmask (SIG_SETMASK, &prev, 0);	2731
2371	#endif	2732	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2733	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2734	ev_io_start (EV_A_ &sigfd_w);
		2735	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2736	}
2372	}	2737	}
		2738
		2739	if (sigfd >= 0)
		2740	{
		2741	/* TODO: check .head */
		2742	sigaddset (&sigfd_set, w->signum);
		2743	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2744
		2745	signalfd (sigfd, &sigfd_set, 0);
		2746	}
		2747	#endif
2373		2748
2374	ev_start (EV_A_ (W)w, 1);	2749	ev_start (EV_A_ (W)w, 1);
2375	wlist_add (&signals [w->signum - 1].head, (WL)w);	2750	wlist_add (&signals [w->signum - 1].head, (WL)w);
2376		2751
2377	if (!((WL)w)->next)	2752	if (!((WL)w)->next)
		2753	# if EV_USE_SIGNALFD
		2754	if (sigfd < 0) /*TODO*/
		2755	# endif
2378	{	2756	{
2379	#if _WIN32	2757	# if _WIN32
2380	signal (w->signum, ev_sighandler);	2758	signal (w->signum, ev_sighandler);
2381	#else	2759	# else
2382	struct sigaction sa;	2760	struct sigaction sa;
		2761
		2762	evpipe_init (EV_A);
		2763
2383	sa.sa_handler = ev_sighandler;	2764	sa.sa_handler = ev_sighandler;
2384	sigfillset (&sa.sa_mask);	2765	sigfillset (&sa.sa_mask);
2385	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2766	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2386	sigaction (w->signum, &sa, 0);	2767	sigaction (w->signum, &sa, 0);
		2768
		2769	sigemptyset (&sa.sa_mask);
		2770	sigaddset (&sa.sa_mask, w->signum);
		2771	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2387	#endif	2772	#endif
2388	}	2773	}
2389		2774
2390	EV_FREQUENT_CHECK;	2775	EV_FREQUENT_CHECK;
2391	}	2776	}
2392		2777
2393	void noinline	2778	void noinline
…		…
2401		2786
2402	wlist_del (&signals [w->signum - 1].head, (WL)w);	2787	wlist_del (&signals [w->signum - 1].head, (WL)w);
2403	ev_stop (EV_A_ (W)w);	2788	ev_stop (EV_A_ (W)w);
2404		2789
2405	if (!signals [w->signum - 1].head)	2790	if (!signals [w->signum - 1].head)
		2791	{
		2792	#if EV_MULTIPLICITY
		2793	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2794	#endif
		2795	#if EV_USE_SIGNALFD
		2796	if (sigfd >= 0)
		2797	{
		2798	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2799	sigdelset (&sigfd_set, w->signum);
		2800	signalfd (sigfd, &sigfd_set, 0);
		2801	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2802	/*TODO: maybe unblock signal? */
		2803	}
		2804	else
		2805	#endif
2406	signal (w->signum, SIG_DFL);	2806	signal (w->signum, SIG_DFL);
		2807	}
2407		2808
2408	EV_FREQUENT_CHECK;	2809	EV_FREQUENT_CHECK;
2409	}	2810	}
2410		2811
2411	void	2812	void
…		…
2491	}	2892	}
2492	}	2893	}
2493		2894
2494	if (w->wd >= 0)	2895	if (w->wd >= 0)
2495	{	2896	{
		2897	struct statfs sfs;
		2898
2496	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2899	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2497		2900
2498	/* now local changes will be tracked by inotify, but remote changes won't */	2901	/* now local changes will be tracked by inotify, but remote changes won't */
2499	/* unless the filesystem it known to be local, we therefore still poll */	2902	/* unless the filesystem it known to be local, we therefore still poll */
2500	/* also do poll on <2.6.25, but with normal frequency */	2903	/* also do poll on <2.6.25, but with normal frequency */
2501	struct statfs sfs;
2502		2904
2503	if (fs_2625 && !statfs (w->path, &sfs))	2905	if (fs_2625 && !statfs (w->path, &sfs))
2504	if (sfs.f_type == 0x1373 /* devfs */	2906	if (sfs.f_type == 0x1373 /* devfs */
2505	|| sfs.f_type == 0xEF53 /* ext2/3 */	2907	|| sfs.f_type == 0xEF53 /* ext2/3 */
2506	|| sfs.f_type == 0x3153464a /* jfs */	2908	|| sfs.f_type == 0x3153464a /* jfs */
…		…
2572		2974
2573	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2975	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2574	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2976	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2575	}	2977	}
2576		2978
2577	void inline_size	2979	inline_size void
2578	check_2625 (EV_P)	2980	check_2625 (EV_P)
2579	{	2981	{
2580	/* kernels < 2.6.25 are borked	2982	/* kernels < 2.6.25 are borked
2581	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	2983	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2582	*/	2984	*/
…		…
2595	return;	2997	return;
2596		2998
2597	fs_2625 = 1;	2999	fs_2625 = 1;
2598	}	3000	}
2599		3001
2600	void inline_size	3002	inline_size void
2601	infy_init (EV_P)	3003	infy_init (EV_P)
2602	{	3004	{
2603	if (fs_fd != -2)	3005	if (fs_fd != -2)
2604	return;	3006	return;
2605		3007
…		…
2615	ev_set_priority (&fs_w, EV_MAXPRI);	3017	ev_set_priority (&fs_w, EV_MAXPRI);
2616	ev_io_start (EV_A_ &fs_w);	3018	ev_io_start (EV_A_ &fs_w);
2617	}	3019	}
2618	}	3020	}
2619		3021
2620	void inline_size	3022	inline_size void
2621	infy_fork (EV_P)	3023	infy_fork (EV_P)
2622	{	3024	{
2623	int slot;	3025	int slot;
2624		3026
2625	if (fs_fd < 0)	3027	if (fs_fd < 0)
…		…
2891	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3293	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2892	{	3294	{
2893	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3295	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2894		3296
2895	{	3297	{
2896	struct ev_loop *loop = w->other;	3298	EV_P = w->other;
2897		3299
2898	while (fdchangecnt)	3300	while (fdchangecnt)
2899	{	3301	{
2900	fd_reify (EV_A);	3302	fd_reify (EV_A);
2901	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3303	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2909	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3311	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2910		3312
2911	ev_embed_stop (EV_A_ w);	3313	ev_embed_stop (EV_A_ w);
2912		3314
2913	{	3315	{
2914	struct ev_loop *loop = w->other;	3316	EV_P = w->other;
2915		3317
2916	ev_loop_fork (EV_A);	3318	ev_loop_fork (EV_A);
2917	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3319	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2918	}	3320	}
2919		3321
…		…
2933	{	3335	{
2934	if (expect_false (ev_is_active (w)))	3336	if (expect_false (ev_is_active (w)))
2935	return;	3337	return;
2936		3338
2937	{	3339	{
2938	struct ev_loop *loop = w->other;	3340	EV_P = w->other;
2939	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3341	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2940	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3342	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2941	}	3343	}
2942		3344
2943	EV_FREQUENT_CHECK;	3345	EV_FREQUENT_CHECK;
…		…
3055		3457
3056	void	3458	void
3057	ev_async_send (EV_P_ ev_async *w)	3459	ev_async_send (EV_P_ ev_async *w)
3058	{	3460	{
3059	w->sent = 1;	3461	w->sent = 1;
3060	evpipe_write (EV_A_ &gotasync);	3462	evpipe_write (EV_A_ &async_pending);
3061	}	3463	}
3062	#endif	3464	#endif
3063		3465
3064	/*****************************************************************************/	3466	/*****************************************************************************/
3065		3467
…		…
3127	ev_timer_set (&once->to, timeout, 0.);	3529	ev_timer_set (&once->to, timeout, 0.);
3128	ev_timer_start (EV_A_ &once->to);	3530	ev_timer_start (EV_A_ &once->to);
3129	}	3531	}
3130	}	3532	}
3131		3533
		3534	/*****************************************************************************/
		3535
		3536	#if EV_WALK_ENABLE
		3537	void
		3538	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
		3539	{
		3540	int i, j;
		3541	ev_watcher_list *wl, *wn;
		3542
		3543	if (types & (EV_IO | EV_EMBED))
		3544	for (i = 0; i < anfdmax; ++i)
		3545	for (wl = anfds [i].head; wl; )
		3546	{
		3547	wn = wl->next;
		3548
		3549	#if EV_EMBED_ENABLE
		3550	if (ev_cb ((ev_io *)wl) == embed_io_cb)
		3551	{
		3552	if (types & EV_EMBED)
		3553	cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
		3554	}
		3555	else
		3556	#endif
		3557	#if EV_USE_INOTIFY
		3558	if (ev_cb ((ev_io *)wl) == infy_cb)
		3559	;
		3560	else
		3561	#endif
		3562	if ((ev_io *)wl != &pipe_w)
		3563	if (types & EV_IO)
		3564	cb (EV_A_ EV_IO, wl);
		3565
		3566	wl = wn;
		3567	}
		3568
		3569	if (types & (EV_TIMER | EV_STAT))
		3570	for (i = timercnt + HEAP0; i-- > HEAP0; )
		3571	#if EV_STAT_ENABLE
		3572	/*TODO: timer is not always active*/
		3573	if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
		3574	{
		3575	if (types & EV_STAT)
		3576	cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
		3577	}
		3578	else
		3579	#endif
		3580	if (types & EV_TIMER)
		3581	cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
		3582
		3583	#if EV_PERIODIC_ENABLE
		3584	if (types & EV_PERIODIC)
		3585	for (i = periodiccnt + HEAP0; i-- > HEAP0; )
		3586	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
		3587	#endif
		3588
		3589	#if EV_IDLE_ENABLE
		3590	if (types & EV_IDLE)
		3591	for (j = NUMPRI; i--; )
		3592	for (i = idlecnt [j]; i--; )
		3593	cb (EV_A_ EV_IDLE, idles [j][i]);
		3594	#endif
		3595
		3596	#if EV_FORK_ENABLE
		3597	if (types & EV_FORK)
		3598	for (i = forkcnt; i--; )
		3599	if (ev_cb (forks [i]) != embed_fork_cb)
		3600	cb (EV_A_ EV_FORK, forks [i]);
		3601	#endif
		3602
		3603	#if EV_ASYNC_ENABLE
		3604	if (types & EV_ASYNC)
		3605	for (i = asynccnt; i--; )
		3606	cb (EV_A_ EV_ASYNC, asyncs [i]);
		3607	#endif
		3608
		3609	if (types & EV_PREPARE)
		3610	for (i = preparecnt; i--; )
		3611	#if EV_EMBED_ENABLE
		3612	if (ev_cb (prepares [i]) != embed_prepare_cb)
		3613	#endif
		3614	cb (EV_A_ EV_PREPARE, prepares [i]);
		3615
		3616	if (types & EV_CHECK)
		3617	for (i = checkcnt; i--; )
		3618	cb (EV_A_ EV_CHECK, checks [i]);
		3619
		3620	if (types & EV_SIGNAL)
		3621	for (i = 0; i < EV_NSIG - 1; ++i)
		3622	for (wl = signals [i].head; wl; )
		3623	{
		3624	wn = wl->next;
		3625	cb (EV_A_ EV_SIGNAL, wl);
		3626	wl = wn;
		3627	}
		3628
		3629	if (types & EV_CHILD)
		3630	for (i = EV_PID_HASHSIZE; i--; )
		3631	for (wl = childs [i]; wl; )
		3632	{
		3633	wn = wl->next;
		3634	cb (EV_A_ EV_CHILD, wl);
		3635	wl = wn;
		3636	}
		3637	/* EV_STAT 0x00001000 /* stat data changed */
		3638	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		3639	}
		3640	#endif
		3641
3132	#if EV_MULTIPLICITY	3642	#if EV_MULTIPLICITY
3133	#include "ev_wrap.h"	3643	#include "ev_wrap.h"
3134	#endif	3644	#endif
3135		3645
3136	#ifdef __cplusplus	3646	#ifdef __cplusplus

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