[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.287 by root, Mon Apr 20 19:45:58 2009 UTC vs.
Revision 1.313 by root, Wed Aug 19 23:44:51 2009 UTC

…		…
57	# endif	57	# endif
58	# ifndef EV_USE_MONOTONIC	58	# ifndef EV_USE_MONOTONIC
59	# define EV_USE_MONOTONIC 1	59	# define EV_USE_MONOTONIC 1
60	# endif	60	# endif
61	# endif	61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
62	# endif	64	# endif
63		65
64	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
65	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
66	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
…		…
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
133	# endif	135	# endif
134	# endif	136	# endif
135		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
		143	# endif
		144	# endif
		145
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
138	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
139	# else	149	# else
140	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
176	# endif	186	# endif
177	#endif	187	#endif
178		188
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
180		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	#if defined (EV_NSIG)
		193	/* use what's provided */
		194	#elif defined (NSIG)
		195	# define EV_NSIG (NSIG)
		196	#elif defined(_NSIG)
		197	# define EV_NSIG (_NSIG)
		198	#elif defined (SIGMAX)
		199	# define EV_NSIG (SIGMAX+1)
		200	#elif defined (SIG_MAX)
		201	# define EV_NSIG (SIG_MAX+1)
		202	#elif defined (_SIG_MAX)
		203	# define EV_NSIG (_SIG_MAX+1)
		204	#elif defined (MAXSIG)
		205	# define EV_NSIG (MAXSIG+1)
		206	#elif defined (MAX_SIG)
		207	# define EV_NSIG (MAX_SIG+1)
		208	#elif defined (SIGARRAYSIZE)
		209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		210	#elif defined (_sys_nsig)
		211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		212	#else
		213	# error "unable to find value for NSIG, please report"
		214	/* to make it compile regardless, just remove the above line */
		215	# define EV_NSIG 65
		216	#endif
		217
181	#ifndef EV_USE_CLOCK_SYSCALL	218	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	219	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	220	# define EV_USE_CLOCK_SYSCALL 1
184	# else	221	# else
185	# define EV_USE_CLOCK_SYSCALL 0	222	# define EV_USE_CLOCK_SYSCALL 0
…		…
264	# else	301	# else
265	# define EV_USE_EVENTFD 0	302	# define EV_USE_EVENTFD 0
266	# endif	303	# endif
267	#endif	304	#endif
268		305
		306	#ifndef EV_USE_SIGNALFD
		307	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))
		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
		404	#endif
		405
		406	#if EV_USE_SIGNALFD
		407	# include <sys/signalfd.h>
344	#endif	408	#endif
345		409
346	/**/	410	/**/
347		411
348	#if EV_VERIFY >= 3	412	#if EV_VERIFY >= 3
…		…
384	# define inline_speed static noinline	448	# define inline_speed static noinline
385	#else	449	#else
386	# define inline_speed static inline	450	# define inline_speed static inline
387	#endif	451	#endif
388		452
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	453	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		454
		455	#if EV_MINPRI == EV_MAXPRI
		456	# define ABSPRI(w) (((W)w), 0)
		457	#else
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	458	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		459	#endif
391		460
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	461	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	462	#define EMPTY2(a,b) /* used to suppress some warnings */
394		463
395	typedef ev_watcher *W;	464	typedef ev_watcher *W;
…		…
407		476
408	#if EV_USE_MONOTONIC	477	#if EV_USE_MONOTONIC
409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	478	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
410	#endif	479	#endif
411		480
		481	#ifndef EV_FD_TO_WIN32_HANDLE
		482	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		483	#endif
		484	#ifndef EV_WIN32_HANDLE_TO_FD
		485	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
		486	#endif
		487	#ifndef EV_WIN32_CLOSE_FD
		488	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		489	#endif
		490
412	#ifdef _WIN32	491	#ifdef _WIN32
413	# include "ev_win32.c"	492	# include "ev_win32.c"
414	#endif	493	#endif
415		494
416	/*****************************************************************************/	495	/*****************************************************************************/
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	557	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	558	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		559
481	/*****************************************************************************/	560	/*****************************************************************************/
482		561
		562	/* set in reify when reification needed */
		563	#define EV_ANFD_REIFY 1
		564
		565	/* file descriptor info structure */
483	typedef struct	566	typedef struct
484	{	567	{
485	WL head;	568	WL head;
486	unsigned char events;	569	unsigned char events; /* the events watched for */
487	unsigned char reify;	570	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	571	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
489	unsigned char unused;	572	unsigned char unused;
490	#if EV_USE_EPOLL	573	#if EV_USE_EPOLL
491	unsigned int egen; /* generation counter to counter epoll bugs */	574	unsigned int egen; /* generation counter to counter epoll bugs */
492	#endif	575	#endif
493	#if EV_SELECT_IS_WINSOCKET	576	#if EV_SELECT_IS_WINSOCKET
494	SOCKET handle;	577	SOCKET handle;
495	#endif	578	#endif
496	} ANFD;	579	} ANFD;
497		580
		581	/* stores the pending event set for a given watcher */
498	typedef struct	582	typedef struct
499	{	583	{
500	W w;	584	W w;
501	int events;	585	int events; /* the pending event set for the given watcher */
502	} ANPENDING;	586	} ANPENDING;
503		587
504	#if EV_USE_INOTIFY	588	#if EV_USE_INOTIFY
505	/* hash table entry per inotify-id */	589	/* hash table entry per inotify-id */
506	typedef struct	590	typedef struct
…		…
509	} ANFS;	593	} ANFS;
510	#endif	594	#endif
511		595
512	/* Heap Entry */	596	/* Heap Entry */
513	#if EV_HEAP_CACHE_AT	597	#if EV_HEAP_CACHE_AT
		598	/* a heap element */
514	typedef struct {	599	typedef struct {
515	ev_tstamp at;	600	ev_tstamp at;
516	WT w;	601	WT w;
517	} ANHE;	602	} ANHE;
518		603
519	#define ANHE_w(he) (he).w /* access watcher, read-write */	604	#define ANHE_w(he) (he).w /* access watcher, read-write */
520	#define ANHE_at(he) (he).at /* access cached at, read-only */	605	#define ANHE_at(he) (he).at /* access cached at, read-only */
521	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	606	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
522	#else	607	#else
		608	/* a heap element */
523	typedef WT ANHE;	609	typedef WT ANHE;
524		610
525	#define ANHE_w(he) (he)	611	#define ANHE_w(he) (he)
526	#define ANHE_at(he) (he)->at	612	#define ANHE_at(he) (he)->at
527	#define ANHE_at_cache(he)	613	#define ANHE_at_cache(he)
…		…
551		637
552	static int ev_default_loop_ptr;	638	static int ev_default_loop_ptr;
553		639
554	#endif	640	#endif
555		641
		642	#if EV_MINIMAL < 2
		643	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		644	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		645	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		646	#else
		647	# define EV_RELEASE_CB (void)0
		648	# define EV_ACQUIRE_CB (void)0
		649	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		650	#endif
		651
		652	#define EVUNLOOP_RECURSE 0x80
		653
556	/*****************************************************************************/	654	/*****************************************************************************/
557		655
		656	#ifndef EV_HAVE_EV_TIME
558	ev_tstamp	657	ev_tstamp
559	ev_time (void)	658	ev_time (void)
560	{	659	{
561	#if EV_USE_REALTIME	660	#if EV_USE_REALTIME
562	if (expect_true (have_realtime))	661	if (expect_true (have_realtime))
…		…
569		668
570	struct timeval tv;	669	struct timeval tv;
571	gettimeofday (&tv, 0);	670	gettimeofday (&tv, 0);
572	return tv.tv_sec + tv.tv_usec * 1e-6;	671	return tv.tv_sec + tv.tv_usec * 1e-6;
573	}	672	}
		673	#endif
574		674
575	inline_size ev_tstamp	675	inline_size ev_tstamp
576	get_clock (void)	676	get_clock (void)
577	{	677	{
578	#if EV_USE_MONOTONIC	678	#if EV_USE_MONOTONIC
…		…
614		714
615	tv.tv_sec = (time_t)delay;	715	tv.tv_sec = (time_t)delay;
616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	716	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617		717
618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	718	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
619	/* somehting nto guaranteed by newer posix versions, but guaranteed */	719	/* something not guaranteed by newer posix versions, but guaranteed */
620	/* by older ones */	720	/* by older ones */
621	select (0, 0, 0, 0, &tv);	721	select (0, 0, 0, 0, &tv);
622	#endif	722	#endif
623	}	723	}
624	}	724	}
625		725
626	/*****************************************************************************/	726	/*****************************************************************************/
627		727
628	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /	728	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /
629		729
		730	/* find a suitable new size for the given array, */
		731	/* hopefully by rounding to a ncie-to-malloc size */
630	inline_size int	732	inline_size int
631	array_nextsize (int elem, int cur, int cnt)	733	array_nextsize (int elem, int cur, int cnt)
632	{	734	{
633	int ncur = cur + 1;	735	int ncur = cur + 1;
634		736
…		…
680	#define array_free(stem, idx) \	782	#define array_free(stem, idx) \
681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	783	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682		784
683	/*****************************************************************************/	785	/*****************************************************************************/
684		786
		787	/* dummy callback for pending events */
		788	static void noinline
		789	pendingcb (EV_P_ ev_prepare *w, int revents)
		790	{
		791	}
		792
685	void noinline	793	void noinline
686	ev_feed_event (EV_P_ void *w, int revents)	794	ev_feed_event (EV_P_ void *w, int revents)
687	{	795	{
688	W w_ = (W)w;	796	W w_ = (W)w;
689	int pri = ABSPRI (w_);	797	int pri = ABSPRI (w_);
…		…
724	}	832	}
725		833
726	/*****************************************************************************/	834	/*****************************************************************************/
727		835
728	inline_speed void	836	inline_speed void
729	fd_event (EV_P_ int fd, int revents)	837	fd_event_nc (EV_P_ int fd, int revents)
730	{	838	{
731	ANFD *anfd = anfds + fd;	839	ANFD *anfd = anfds + fd;
732	ev_io *w;	840	ev_io *w;
733		841
734	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	842	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
738	if (ev)	846	if (ev)
739	ev_feed_event (EV_A_ (W)w, ev);	847	ev_feed_event (EV_A_ (W)w, ev);
740	}	848	}
741	}	849	}
742		850
		851	/* do not submit kernel events for fds that have reify set */
		852	/* because that means they changed while we were polling for new events */
		853	inline_speed void
		854	fd_event (EV_P_ int fd, int revents)
		855	{
		856	ANFD *anfd = anfds + fd;
		857
		858	if (expect_true (!anfd->reify))
		859	fd_event_nc (EV_A_ fd, revents);
		860	}
		861
743	void	862	void
744	ev_feed_fd_event (EV_P_ int fd, int revents)	863	ev_feed_fd_event (EV_P_ int fd, int revents)
745	{	864	{
746	if (fd >= 0 && fd < anfdmax)	865	if (fd >= 0 && fd < anfdmax)
747	fd_event (EV_A_ fd, revents);	866	fd_event_nc (EV_A_ fd, revents);
748	}	867	}
749		868
		869	/* make sure the external fd watch events are in-sync */
		870	/* with the kernel/libev internal state */
750	inline_size void	871	inline_size void
751	fd_reify (EV_P)	872	fd_reify (EV_P)
752	{	873	{
753	int i;	874	int i;
754		875
…		…
765		886
766	#if EV_SELECT_IS_WINSOCKET	887	#if EV_SELECT_IS_WINSOCKET
767	if (events)	888	if (events)
768	{	889	{
769	unsigned long arg;	890	unsigned long arg;
770	#ifdef EV_FD_TO_WIN32_HANDLE
771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	891	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
772	#else
773	anfd->handle = _get_osfhandle (fd);
774	#endif
775	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	892	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
776	}	893	}
777	#endif	894	#endif
778		895
779	{	896	{
…		…
789	}	906	}
790		907
791	fdchangecnt = 0;	908	fdchangecnt = 0;
792	}	909	}
793		910
		911	/* something about the given fd changed */
794	inline_size void	912	inline_size void
795	fd_change (EV_P_ int fd, int flags)	913	fd_change (EV_P_ int fd, int flags)
796	{	914	{
797	unsigned char reify = anfds [fd].reify;	915	unsigned char reify = anfds [fd].reify;
798	anfds [fd].reify \|= flags;	916	anfds [fd].reify \|= flags;
…		…
803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	921	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
804	fdchanges [fdchangecnt - 1] = fd;	922	fdchanges [fdchangecnt - 1] = fd;
805	}	923	}
806	}	924	}
807		925
		926	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
808	inline_speed void	927	inline_speed void
809	fd_kill (EV_P_ int fd)	928	fd_kill (EV_P_ int fd)
810	{	929	{
811	ev_io *w;	930	ev_io *w;
812		931
…		…
815	ev_io_stop (EV_A_ w);	934	ev_io_stop (EV_A_ w);
816	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	935	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
817	}	936	}
818	}	937	}
819		938
		939	/* check whether the given fd is atcually valid, for error recovery */
820	inline_size int	940	inline_size int
821	fd_valid (int fd)	941	fd_valid (int fd)
822	{	942	{
823	#ifdef _WIN32	943	#ifdef _WIN32
824	return _get_osfhandle (fd) != -1;	944	return _get_osfhandle (fd) != -1;
…		…
847		967
848	for (fd = anfdmax; fd--; )	968	for (fd = anfdmax; fd--; )
849	if (anfds [fd].events)	969	if (anfds [fd].events)
850	{	970	{
851	fd_kill (EV_A_ fd);	971	fd_kill (EV_A_ fd);
852	return;	972	break;
853	}	973	}
854	}	974	}
855		975
856	/* usually called after fork if backend needs to re-arm all fds from scratch */	976	/* usually called after fork if backend needs to re-arm all fds from scratch */
857	static void noinline	977	static void noinline
…		…
862	for (fd = 0; fd < anfdmax; ++fd)	982	for (fd = 0; fd < anfdmax; ++fd)
863	if (anfds [fd].events)	983	if (anfds [fd].events)
864	{	984	{
865	anfds [fd].events = 0;	985	anfds [fd].events = 0;
866	anfds [fd].emask = 0;	986	anfds [fd].emask = 0;
867	fd_change (EV_A_ fd, EV__IOFDSET \| 1);	987	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
868	}	988	}
869	}	989	}
870		990
871	/*****************************************************************************/	991	/*****************************************************************************/
872		992
…		…
947		1067
948	for (;;)	1068	for (;;)
949	{	1069	{
950	int c = k << 1;	1070	int c = k << 1;
951		1071
952	if (c > N + HEAP0 - 1)	1072	if (c >= N + HEAP0)
953	break;	1073	break;
954		1074
955	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1075	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
956	? 1 : 0;	1076	? 1 : 0;
957		1077
…		…
989		1109
990	heap [k] = he;	1110	heap [k] = he;
991	ev_active (ANHE_w (he)) = k;	1111	ev_active (ANHE_w (he)) = k;
992	}	1112	}
993		1113
		1114	/* move an element suitably so it is in a correct place */
994	inline_size void	1115	inline_size void
995	adjustheap (ANHE *heap, int N, int k)	1116	adjustheap (ANHE *heap, int N, int k)
996	{	1117	{
997	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1118	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
998	upheap (heap, k);	1119	upheap (heap, k);
999	else	1120	else
1000	downheap (heap, N, k);	1121	downheap (heap, N, k);
1001	}	1122	}
1002		1123
…		…
1012	upheap (heap, i + HEAP0);	1133	upheap (heap, i + HEAP0);
1013	}	1134	}
1014		1135
1015	/*****************************************************************************/	1136	/*****************************************************************************/
1016		1137
		1138	/* associate signal watchers to a signal signal */
1017	typedef struct	1139	typedef struct
1018	{	1140	{
		1141	EV_ATOMIC_T pending;
		1142	#if EV_MULTIPLICITY
		1143	EV_P;
		1144	#endif
1019	WL head;	1145	WL head;
1020	EV_ATOMIC_T gotsig;
1021	} ANSIG;	1146	} ANSIG;
1022		1147
1023	static ANSIG *signals;	1148	static ANSIG signals [EV_NSIG - 1];
1024	static int signalmax;
1025
1026	static EV_ATOMIC_T gotsig;
1027		1149
1028	/*****************************************************************************/	1150	/*****************************************************************************/
1029		1151
		1152	/* used to prepare libev internal fd's */
		1153	/* this is not fork-safe */
1030	inline_speed void	1154	inline_speed void
1031	fd_intern (int fd)	1155	fd_intern (int fd)
1032	{	1156	{
1033	#ifdef _WIN32	1157	#ifdef _WIN32
1034	unsigned long arg = 1;	1158	unsigned long arg = 1;
…		…
1040	}	1164	}
1041		1165
1042	static void noinline	1166	static void noinline
1043	evpipe_init (EV_P)	1167	evpipe_init (EV_P)
1044	{	1168	{
1045	if (!ev_is_active (&pipeev))	1169	if (!ev_is_active (&pipe_w))
1046	{	1170	{
1047	#if EV_USE_EVENTFD	1171	#if EV_USE_EVENTFD
		1172	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
		1173	if (evfd < 0 && errno == EINVAL)
1048	if ((evfd = eventfd (0, 0)) >= 0)	1174	evfd = eventfd (0, 0);
		1175
		1176	if (evfd >= 0)
1049	{	1177	{
1050	evpipe [0] = -1;	1178	evpipe [0] = -1;
1051	fd_intern (evfd);	1179	fd_intern (evfd); /* doing it twice doesn't hurt */
1052	ev_io_set (&pipeev, evfd, EV_READ);	1180	ev_io_set (&pipe_w, evfd, EV_READ);
1053	}	1181	}
1054	else	1182	else
1055	#endif	1183	#endif
1056	{	1184	{
1057	while (pipe (evpipe))	1185	while (pipe (evpipe))
1058	ev_syserr ("(libev) error creating signal/async pipe");	1186	ev_syserr ("(libev) error creating signal/async pipe");
1059		1187
1060	fd_intern (evpipe [0]);	1188	fd_intern (evpipe [0]);
1061	fd_intern (evpipe [1]);	1189	fd_intern (evpipe [1]);
1062	ev_io_set (&pipeev, evpipe [0], EV_READ);	1190	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1063	}	1191	}
1064		1192
1065	ev_io_start (EV_A_ &pipeev);	1193	ev_io_start (EV_A_ &pipe_w);
1066	ev_unref (EV_A); /* watcher should not keep loop alive */	1194	ev_unref (EV_A); /* watcher should not keep loop alive */
1067	}	1195	}
1068	}	1196	}
1069		1197
1070	inline_size void	1198	inline_size void
…		…
1088		1216
1089	errno = old_errno;	1217	errno = old_errno;
1090	}	1218	}
1091	}	1219	}
1092		1220
		1221	/* called whenever the libev signal pipe */
		1222	/* got some events (signal, async) */
1093	static void	1223	static void
1094	pipecb (EV_P_ ev_io *iow, int revents)	1224	pipecb (EV_P_ ev_io *iow, int revents)
1095	{	1225	{
		1226	int i;
		1227
1096	#if EV_USE_EVENTFD	1228	#if EV_USE_EVENTFD
1097	if (evfd >= 0)	1229	if (evfd >= 0)
1098	{	1230	{
1099	uint64_t counter;	1231	uint64_t counter;
1100	read (evfd, &counter, sizeof (uint64_t));	1232	read (evfd, &counter, sizeof (uint64_t));
…		…
1104	{	1236	{
1105	char dummy;	1237	char dummy;
1106	read (evpipe [0], &dummy, 1);	1238	read (evpipe [0], &dummy, 1);
1107	}	1239	}
1108		1240
1109	if (gotsig && ev_is_default_loop (EV_A))	1241	if (sig_pending)
1110	{	1242	{
1111	int signum;	1243	sig_pending = 0;
1112	gotsig = 0;
1113		1244
1114	for (signum = signalmax; signum--; )	1245	for (i = EV_NSIG - 1; i--; )
1115	if (signals [signum].gotsig)	1246	if (expect_false (signals [i].pending))
1116	ev_feed_signal_event (EV_A_ signum + 1);	1247	ev_feed_signal_event (EV_A_ i + 1);
1117	}	1248	}
1118		1249
1119	#if EV_ASYNC_ENABLE	1250	#if EV_ASYNC_ENABLE
1120	if (gotasync)	1251	if (async_pending)
1121	{	1252	{
1122	int i;	1253	async_pending = 0;
1123	gotasync = 0;
1124		1254
1125	for (i = asynccnt; i--; )	1255	for (i = asynccnt; i--; )
1126	if (asyncs [i]->sent)	1256	if (asyncs [i]->sent)
1127	{	1257	{
1128	asyncs [i]->sent = 0;	1258	asyncs [i]->sent = 0;
…		…
1136		1266
1137	static void	1267	static void
1138	ev_sighandler (int signum)	1268	ev_sighandler (int signum)
1139	{	1269	{
1140	#if EV_MULTIPLICITY	1270	#if EV_MULTIPLICITY
1141	struct ev_loop *loop = &default_loop_struct;	1271	EV_P = signals [signum - 1].loop;
1142	#endif	1272	#endif
1143		1273
1144	#if _WIN32	1274	#if _WIN32
1145	signal (signum, ev_sighandler);	1275	signal (signum, ev_sighandler);
1146	#endif	1276	#endif
1147		1277
1148	signals [signum - 1].gotsig = 1;	1278	signals [signum - 1].pending = 1;
1149	evpipe_write (EV_A_ &gotsig);	1279	evpipe_write (EV_A_ &sig_pending);
1150	}	1280	}
1151		1281
1152	void noinline	1282	void noinline
1153	ev_feed_signal_event (EV_P_ int signum)	1283	ev_feed_signal_event (EV_P_ int signum)
1154	{	1284	{
1155	WL w;	1285	WL w;
1156		1286
		1287	if (expect_false (signum <= 0 \|\| signum > EV_NSIG))
		1288	return;
		1289
		1290	--signum;
		1291
1157	#if EV_MULTIPLICITY	1292	#if EV_MULTIPLICITY
1158	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1293	/* it is permissible to try to feed a signal to the wrong loop */
1159	#endif	1294	/* or, likely more useful, feeding a signal nobody is waiting for */
1160		1295
1161	--signum;	1296	if (expect_false (signals [signum].loop != EV_A))
1162
1163	if (signum < 0 \|\| signum >= signalmax)
1164	return;	1297	return;
		1298	#endif
1165		1299
1166	signals [signum].gotsig = 0;	1300	signals [signum].pending = 0;
1167		1301
1168	for (w = signals [signum].head; w; w = w->next)	1302	for (w = signals [signum].head; w; w = w->next)
1169	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1303	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1170	}	1304	}
1171		1305
		1306	#if EV_USE_SIGNALFD
		1307	static void
		1308	sigfdcb (EV_P_ ev_io *iow, int revents)
		1309	{
		1310	struct signalfd_siginfo si[2], sip; / these structs are big */
		1311
		1312	for (;;)
		1313	{
		1314	ssize_t res = read (sigfd, si, sizeof (si));
		1315
		1316	/* not ISO-C, as res might be -1, but works with SuS */
		1317	for (sip = si; (char )sip < (char )si + res; ++sip)
		1318	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1319
		1320	if (res < (ssize_t)sizeof (si))
		1321	break;
		1322	}
		1323	}
		1324	#endif
		1325
1172	/*****************************************************************************/	1326	/*****************************************************************************/
1173		1327
1174	static WL childs [EV_PID_HASHSIZE];	1328	static WL childs [EV_PID_HASHSIZE];
1175		1329
1176	#ifndef _WIN32	1330	#ifndef _WIN32
…		…
1179		1333
1180	#ifndef WIFCONTINUED	1334	#ifndef WIFCONTINUED
1181	# define WIFCONTINUED(status) 0	1335	# define WIFCONTINUED(status) 0
1182	#endif	1336	#endif
1183		1337
		1338	/* handle a single child status event */
1184	inline_speed void	1339	inline_speed void
1185	child_reap (EV_P_ int chain, int pid, int status)	1340	child_reap (EV_P_ int chain, int pid, int status)
1186	{	1341	{
1187	ev_child *w;	1342	ev_child *w;
1188	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1343	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
…		…
1202		1357
1203	#ifndef WCONTINUED	1358	#ifndef WCONTINUED
1204	# define WCONTINUED 0	1359	# define WCONTINUED 0
1205	#endif	1360	#endif
1206		1361
		1362	/* called on sigchld etc., calls waitpid */
1207	static void	1363	static void
1208	childcb (EV_P_ ev_signal *sw, int revents)	1364	childcb (EV_P_ ev_signal *sw, int revents)
1209	{	1365	{
1210	int pid, status;	1366	int pid, status;
1211		1367
…		…
1318	ev_backend (EV_P)	1474	ev_backend (EV_P)
1319	{	1475	{
1320	return backend;	1476	return backend;
1321	}	1477	}
1322		1478
		1479	#if EV_MINIMAL < 2
1323	unsigned int	1480	unsigned int
1324	ev_loop_count (EV_P)	1481	ev_loop_count (EV_P)
1325	{	1482	{
1326	return loop_count;	1483	return loop_count;
1327	}	1484	}
1328		1485
		1486	unsigned int
		1487	ev_loop_depth (EV_P)
		1488	{
		1489	return loop_depth;
		1490	}
		1491
1329	void	1492	void
1330	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1493	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1331	{	1494	{
1332	io_blocktime = interval;	1495	io_blocktime = interval;
1333	}	1496	}
…		…
1336	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1499	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1337	{	1500	{
1338	timeout_blocktime = interval;	1501	timeout_blocktime = interval;
1339	}	1502	}
1340		1503
		1504	void
		1505	ev_set_userdata (EV_P_ void *data)
		1506	{
		1507	userdata = data;
		1508	}
		1509
		1510	void *
		1511	ev_userdata (EV_P)
		1512	{
		1513	return userdata;
		1514	}
		1515
		1516	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1517	{
		1518	invoke_cb = invoke_pending_cb;
		1519	}
		1520
		1521	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
		1522	{
		1523	release_cb = release;
		1524	acquire_cb = acquire;
		1525	}
		1526	#endif
		1527
		1528	/* initialise a loop structure, must be zero-initialised */
1341	static void noinline	1529	static void noinline
1342	loop_init (EV_P_ unsigned int flags)	1530	loop_init (EV_P_ unsigned int flags)
1343	{	1531	{
1344	if (!backend)	1532	if (!backend)
1345	{	1533	{
…		…
1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1549	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1362	have_monotonic = 1;	1550	have_monotonic = 1;
1363	}	1551	}
1364	#endif	1552	#endif
1365		1553
		1554	/* pid check not overridable via env */
		1555	#ifndef _WIN32
		1556	if (flags & EVFLAG_FORKCHECK)
		1557	curpid = getpid ();
		1558	#endif
		1559
		1560	if (!(flags & EVFLAG_NOENV)
		1561	&& !enable_secure ()
		1562	&& getenv ("LIBEV_FLAGS"))
		1563	flags = atoi (getenv ("LIBEV_FLAGS"));
		1564
1366	ev_rt_now = ev_time ();	1565	ev_rt_now = ev_time ();
1367	mn_now = get_clock ();	1566	mn_now = get_clock ();
1368	now_floor = mn_now;	1567	now_floor = mn_now;
1369	rtmn_diff = ev_rt_now - mn_now;	1568	rtmn_diff = ev_rt_now - mn_now;
		1569	#if EV_MINIMAL < 2
		1570	invoke_cb = ev_invoke_pending;
		1571	#endif
1370		1572
1371	io_blocktime = 0.;	1573	io_blocktime = 0.;
1372	timeout_blocktime = 0.;	1574	timeout_blocktime = 0.;
1373	backend = 0;	1575	backend = 0;
1374	backend_fd = -1;	1576	backend_fd = -1;
1375	gotasync = 0;	1577	sig_pending = 0;
		1578	#if EV_ASYNC_ENABLE
		1579	async_pending = 0;
		1580	#endif
1376	#if EV_USE_INOTIFY	1581	#if EV_USE_INOTIFY
1377	fs_fd = -2;	1582	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1378	#endif	1583	#endif
1379		1584	#if EV_USE_SIGNALFD
1380	/* pid check not overridable via env */	1585	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1381	#ifndef _WIN32
1382	if (flags & EVFLAG_FORKCHECK)
1383	curpid = getpid ();
1384	#endif	1586	#endif
1385
1386	if (!(flags & EVFLAG_NOENV)
1387	&& !enable_secure ()
1388	&& getenv ("LIBEV_FLAGS"))
1389	flags = atoi (getenv ("LIBEV_FLAGS"));
1390		1587
1391	if (!(flags & 0x0000ffffU))	1588	if (!(flags & 0x0000ffffU))
1392	flags \|= ev_recommended_backends ();	1589	flags \|= ev_recommended_backends ();
1393		1590
1394	#if EV_USE_PORT	1591	#if EV_USE_PORT
…		…
1405	#endif	1602	#endif
1406	#if EV_USE_SELECT	1603	#if EV_USE_SELECT
1407	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1604	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1408	#endif	1605	#endif
1409		1606
		1607	ev_prepare_init (&pending_w, pendingcb);
		1608
1410	ev_init (&pipeev, pipecb);	1609	ev_init (&pipe_w, pipecb);
1411	ev_set_priority (&pipeev, EV_MAXPRI);	1610	ev_set_priority (&pipe_w, EV_MAXPRI);
1412	}	1611	}
1413	}	1612	}
1414		1613
		1614	/* free up a loop structure */
1415	static void noinline	1615	static void noinline
1416	loop_destroy (EV_P)	1616	loop_destroy (EV_P)
1417	{	1617	{
1418	int i;	1618	int i;
1419		1619
1420	if (ev_is_active (&pipeev))	1620	if (ev_is_active (&pipe_w))
1421	{	1621	{
1422	ev_ref (EV_A); /* signal watcher */	1622	/ev_ref (EV_A);/
1423	ev_io_stop (EV_A_ &pipeev);	1623	/ev_io_stop (EV_A_ &pipe_w);/
1424		1624
1425	#if EV_USE_EVENTFD	1625	#if EV_USE_EVENTFD
1426	if (evfd >= 0)	1626	if (evfd >= 0)
1427	close (evfd);	1627	close (evfd);
1428	#endif	1628	#endif
1429		1629
1430	if (evpipe [0] >= 0)	1630	if (evpipe [0] >= 0)
1431	{	1631	{
1432	close (evpipe [0]);	1632	EV_WIN32_CLOSE_FD (evpipe [0]);
1433	close (evpipe [1]);	1633	EV_WIN32_CLOSE_FD (evpipe [1]);
1434	}	1634	}
1435	}	1635	}
		1636
		1637	#if EV_USE_SIGNALFD
		1638	if (ev_is_active (&sigfd_w))
		1639	{
		1640	/ev_ref (EV_A);/
		1641	/ev_io_stop (EV_A_ &sigfd_w);/
		1642
		1643	close (sigfd);
		1644	}
		1645	#endif
1436		1646
1437	#if EV_USE_INOTIFY	1647	#if EV_USE_INOTIFY
1438	if (fs_fd >= 0)	1648	if (fs_fd >= 0)
1439	close (fs_fd);	1649	close (fs_fd);
1440	#endif	1650	#endif
…		…
1464	#if EV_IDLE_ENABLE	1674	#if EV_IDLE_ENABLE
1465	array_free (idle, [i]);	1675	array_free (idle, [i]);
1466	#endif	1676	#endif
1467	}	1677	}
1468		1678
1469	ev_free (anfds); anfdmax = 0;	1679	ev_free (anfds); anfds = 0; anfdmax = 0;
1470		1680
1471	/* have to use the microsoft-never-gets-it-right macro */	1681	/* have to use the microsoft-never-gets-it-right macro */
1472	array_free (rfeed, EMPTY);	1682	array_free (rfeed, EMPTY);
1473	array_free (fdchange, EMPTY);	1683	array_free (fdchange, EMPTY);
1474	array_free (timer, EMPTY);	1684	array_free (timer, EMPTY);
…		…
1505	#endif	1715	#endif
1506	#if EV_USE_INOTIFY	1716	#if EV_USE_INOTIFY
1507	infy_fork (EV_A);	1717	infy_fork (EV_A);
1508	#endif	1718	#endif
1509		1719
1510	if (ev_is_active (&pipeev))	1720	if (ev_is_active (&pipe_w))
1511	{	1721	{
1512	/* this "locks" the handlers against writing to the pipe */	1722	/* this "locks" the handlers against writing to the pipe */
1513	/* while we modify the fd vars */	1723	/* while we modify the fd vars */
1514	gotsig = 1;	1724	sig_pending = 1;
1515	#if EV_ASYNC_ENABLE	1725	#if EV_ASYNC_ENABLE
1516	gotasync = 1;	1726	async_pending = 1;
1517	#endif	1727	#endif
1518		1728
1519	ev_ref (EV_A);	1729	ev_ref (EV_A);
1520	ev_io_stop (EV_A_ &pipeev);	1730	ev_io_stop (EV_A_ &pipe_w);
1521		1731
1522	#if EV_USE_EVENTFD	1732	#if EV_USE_EVENTFD
1523	if (evfd >= 0)	1733	if (evfd >= 0)
1524	close (evfd);	1734	close (evfd);
1525	#endif	1735	#endif
1526		1736
1527	if (evpipe [0] >= 0)	1737	if (evpipe [0] >= 0)
1528	{	1738	{
1529	close (evpipe [0]);	1739	EV_WIN32_CLOSE_FD (evpipe [0]);
1530	close (evpipe [1]);	1740	EV_WIN32_CLOSE_FD (evpipe [1]);
1531	}	1741	}
1532		1742
1533	evpipe_init (EV_A);	1743	evpipe_init (EV_A);
1534	/* now iterate over everything, in case we missed something */	1744	/* now iterate over everything, in case we missed something */
1535	pipecb (EV_A_ &pipeev, EV_READ);	1745	pipecb (EV_A_ &pipe_w, EV_READ);
1536	}	1746	}
1537		1747
1538	postfork = 0;	1748	postfork = 0;
1539	}	1749	}
1540		1750
1541	#if EV_MULTIPLICITY	1751	#if EV_MULTIPLICITY
1542		1752
1543	struct ev_loop *	1753	struct ev_loop *
1544	ev_loop_new (unsigned int flags)	1754	ev_loop_new (unsigned int flags)
1545	{	1755	{
1546	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1756	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1547		1757
1548	memset (loop, 0, sizeof (struct ev_loop));	1758	memset (EV_A, 0, sizeof (struct ev_loop));
1549
1550	loop_init (EV_A_ flags);	1759	loop_init (EV_A_ flags);
1551		1760
1552	if (ev_backend (EV_A))	1761	if (ev_backend (EV_A))
1553	return loop;	1762	return EV_A;
1554		1763
1555	return 0;	1764	return 0;
1556	}	1765	}
1557		1766
1558	void	1767	void
…		…
1565	void	1774	void
1566	ev_loop_fork (EV_P)	1775	ev_loop_fork (EV_P)
1567	{	1776	{
1568	postfork = 1; /* must be in line with ev_default_fork */	1777	postfork = 1; /* must be in line with ev_default_fork */
1569	}	1778	}
		1779	#endif /* multiplicity */
1570		1780
1571	#if EV_VERIFY	1781	#if EV_VERIFY
1572	static void noinline	1782	static void noinline
1573	verify_watcher (EV_P_ W w)	1783	verify_watcher (EV_P_ W w)
1574	{	1784	{
…		…
1602	verify_watcher (EV_A_ ws [cnt]);	1812	verify_watcher (EV_A_ ws [cnt]);
1603	}	1813	}
1604	}	1814	}
1605	#endif	1815	#endif
1606		1816
		1817	#if EV_MINIMAL < 2
1607	void	1818	void
1608	ev_loop_verify (EV_P)	1819	ev_loop_verify (EV_P)
1609	{	1820	{
1610	#if EV_VERIFY	1821	#if EV_VERIFY
1611	int i;	1822	int i;
…		…
1660	assert (checkmax >= checkcnt);	1871	assert (checkmax >= checkcnt);
1661	array_verify (EV_A_ (W *)checks, checkcnt);	1872	array_verify (EV_A_ (W *)checks, checkcnt);
1662		1873
1663	# if 0	1874	# if 0
1664	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1875	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
1665	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1876	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1666	# endif	1877	# endif
1667	#endif	1878	#endif
1668	}	1879	}
1669		1880	#endif
1670	#endif /* multiplicity */
1671		1881
1672	#if EV_MULTIPLICITY	1882	#if EV_MULTIPLICITY
1673	struct ev_loop *	1883	struct ev_loop *
1674	ev_default_loop_init (unsigned int flags)	1884	ev_default_loop_init (unsigned int flags)
1675	#else	1885	#else
…		…
1678	#endif	1888	#endif
1679	{	1889	{
1680	if (!ev_default_loop_ptr)	1890	if (!ev_default_loop_ptr)
1681	{	1891	{
1682	#if EV_MULTIPLICITY	1892	#if EV_MULTIPLICITY
1683	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1893	EV_P = ev_default_loop_ptr = &default_loop_struct;
1684	#else	1894	#else
1685	ev_default_loop_ptr = 1;	1895	ev_default_loop_ptr = 1;
1686	#endif	1896	#endif
1687		1897
1688	loop_init (EV_A_ flags);	1898	loop_init (EV_A_ flags);
…		…
1705		1915
1706	void	1916	void
1707	ev_default_destroy (void)	1917	ev_default_destroy (void)
1708	{	1918	{
1709	#if EV_MULTIPLICITY	1919	#if EV_MULTIPLICITY
1710	struct ev_loop *loop = ev_default_loop_ptr;	1920	EV_P = ev_default_loop_ptr;
1711	#endif	1921	#endif
1712		1922
1713	ev_default_loop_ptr = 0;	1923	ev_default_loop_ptr = 0;
1714		1924
1715	#ifndef _WIN32	1925	#ifndef _WIN32
…		…
1722		1932
1723	void	1933	void
1724	ev_default_fork (void)	1934	ev_default_fork (void)
1725	{	1935	{
1726	#if EV_MULTIPLICITY	1936	#if EV_MULTIPLICITY
1727	struct ev_loop *loop = ev_default_loop_ptr;	1937	EV_P = ev_default_loop_ptr;
1728	#endif	1938	#endif
1729		1939
1730	postfork = 1; /* must be in line with ev_loop_fork */	1940	postfork = 1; /* must be in line with ev_loop_fork */
1731	}	1941	}
1732		1942
…		…
1736	ev_invoke (EV_P_ void *w, int revents)	1946	ev_invoke (EV_P_ void *w, int revents)
1737	{	1947	{
1738	EV_CB_INVOKE ((W)w, revents);	1948	EV_CB_INVOKE ((W)w, revents);
1739	}	1949	}
1740		1950
1741	inline_speed void	1951	unsigned int
1742	call_pending (EV_P)	1952	ev_pending_count (EV_P)
		1953	{
		1954	int pri;
		1955	unsigned int count = 0;
		1956
		1957	for (pri = NUMPRI; pri--; )
		1958	count += pendingcnt [pri];
		1959
		1960	return count;
		1961	}
		1962
		1963	void noinline
		1964	ev_invoke_pending (EV_P)
1743	{	1965	{
1744	int pri;	1966	int pri;
1745		1967
1746	for (pri = NUMPRI; pri--; )	1968	for (pri = NUMPRI; pri--; )
1747	while (pendingcnt [pri])	1969	while (pendingcnt [pri])
1748	{	1970	{
1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1971	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1750		1972
1751	if (expect_true (p->w))
1752	{
1753	/assert (("libev: non-pending watcher on pending list", p->w->pending));/	1973	/assert (("libev: non-pending watcher on pending list", p->w->pending));/
		1974	/* ^ this is no longer true, as pending_w could be here */
1754		1975
1755	p->w->pending = 0;	1976	p->w->pending = 0;
1756	EV_CB_INVOKE (p->w, p->events);	1977	EV_CB_INVOKE (p->w, p->events);
1757	EV_FREQUENT_CHECK;	1978	EV_FREQUENT_CHECK;
1758	}
1759	}	1979	}
1760	}	1980	}
1761		1981
1762	#if EV_IDLE_ENABLE	1982	#if EV_IDLE_ENABLE
		1983	/* make idle watchers pending. this handles the "call-idle */
		1984	/* only when higher priorities are idle" logic */
1763	inline_size void	1985	inline_size void
1764	idle_reify (EV_P)	1986	idle_reify (EV_P)
1765	{	1987	{
1766	if (expect_false (idleall))	1988	if (expect_false (idleall))
1767	{	1989	{
…		…
1780	}	2002	}
1781	}	2003	}
1782	}	2004	}
1783	#endif	2005	#endif
1784		2006
		2007	/* make timers pending */
1785	inline_size void	2008	inline_size void
1786	timers_reify (EV_P)	2009	timers_reify (EV_P)
1787	{	2010	{
1788	EV_FREQUENT_CHECK;	2011	EV_FREQUENT_CHECK;
1789		2012
…		…
1818	feed_reverse_done (EV_A_ EV_TIMEOUT);	2041	feed_reverse_done (EV_A_ EV_TIMEOUT);
1819	}	2042	}
1820	}	2043	}
1821		2044
1822	#if EV_PERIODIC_ENABLE	2045	#if EV_PERIODIC_ENABLE
		2046	/* make periodics pending */
1823	inline_size void	2047	inline_size void
1824	periodics_reify (EV_P)	2048	periodics_reify (EV_P)
1825	{	2049	{
1826	EV_FREQUENT_CHECK;	2050	EV_FREQUENT_CHECK;
1827		2051
…		…
1874		2098
1875	feed_reverse_done (EV_A_ EV_PERIODIC);	2099	feed_reverse_done (EV_A_ EV_PERIODIC);
1876	}	2100	}
1877	}	2101	}
1878		2102
		2103	/* simply recalculate all periodics */
		2104	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1879	static void noinline	2105	static void noinline
1880	periodics_reschedule (EV_P)	2106	periodics_reschedule (EV_P)
1881	{	2107	{
1882	int i;	2108	int i;
1883		2109
…		…
1896		2122
1897	reheap (periodics, periodiccnt);	2123	reheap (periodics, periodiccnt);
1898	}	2124	}
1899	#endif	2125	#endif
1900		2126
		2127	/* adjust all timers by a given offset */
1901	static void noinline	2128	static void noinline
1902	timers_reschedule (EV_P_ ev_tstamp adjust)	2129	timers_reschedule (EV_P_ ev_tstamp adjust)
1903	{	2130	{
1904	int i;	2131	int i;
1905		2132
…		…
1909	ANHE_w (*he)->at += adjust;	2136	ANHE_w (*he)->at += adjust;
1910	ANHE_at_cache (*he);	2137	ANHE_at_cache (*he);
1911	}	2138	}
1912	}	2139	}
1913		2140
		2141	/* fetch new monotonic and realtime times from the kernel */
		2142	/* also detetc if there was a timejump, and act accordingly */
1914	inline_speed void	2143	inline_speed void
1915	time_update (EV_P_ ev_tstamp max_block)	2144	time_update (EV_P_ ev_tstamp max_block)
1916	{	2145	{
1917	int i;
1918
1919	#if EV_USE_MONOTONIC	2146	#if EV_USE_MONOTONIC
1920	if (expect_true (have_monotonic))	2147	if (expect_true (have_monotonic))
1921	{	2148	{
		2149	int i;
1922	ev_tstamp odiff = rtmn_diff;	2150	ev_tstamp odiff = rtmn_diff;
1923		2151
1924	mn_now = get_clock ();	2152	mn_now = get_clock ();
1925		2153
1926	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /	2154	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
…		…
1976		2204
1977	mn_now = ev_rt_now;	2205	mn_now = ev_rt_now;
1978	}	2206	}
1979	}	2207	}
1980		2208
1981	static int loop_done;
1982
1983	void	2209	void
1984	ev_loop (EV_P_ int flags)	2210	ev_loop (EV_P_ int flags)
1985	{	2211	{
		2212	#if EV_MINIMAL < 2
		2213	++loop_depth;
		2214	#endif
		2215
		2216	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2217
1986	loop_done = EVUNLOOP_CANCEL;	2218	loop_done = EVUNLOOP_CANCEL;
1987		2219
1988	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2220	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1989		2221
1990	do	2222	do
1991	{	2223	{
1992	#if EV_VERIFY >= 2	2224	#if EV_VERIFY >= 2
1993	ev_loop_verify (EV_A);	2225	ev_loop_verify (EV_A);
…		…
2006	/* we might have forked, so queue fork handlers */	2238	/* we might have forked, so queue fork handlers */
2007	if (expect_false (postfork))	2239	if (expect_false (postfork))
2008	if (forkcnt)	2240	if (forkcnt)
2009	{	2241	{
2010	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2242	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2011	call_pending (EV_A);	2243	EV_INVOKE_PENDING;
2012	}	2244	}
2013	#endif	2245	#endif
2014		2246
2015	/* queue prepare watchers (and execute them) */	2247	/* queue prepare watchers (and execute them) */
2016	if (expect_false (preparecnt))	2248	if (expect_false (preparecnt))
2017	{	2249	{
2018	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2250	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2019	call_pending (EV_A);	2251	EV_INVOKE_PENDING;
2020	}	2252	}
		2253
		2254	if (expect_false (loop_done))
		2255	break;
2021		2256
2022	/* we might have forked, so reify kernel state if necessary */	2257	/* we might have forked, so reify kernel state if necessary */
2023	if (expect_false (postfork))	2258	if (expect_false (postfork))
2024	loop_fork (EV_A);	2259	loop_fork (EV_A);
2025		2260
…		…
2031	ev_tstamp waittime = 0.;	2266	ev_tstamp waittime = 0.;
2032	ev_tstamp sleeptime = 0.;	2267	ev_tstamp sleeptime = 0.;
2033		2268
2034	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))	2269	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
2035	{	2270	{
		2271	/* remember old timestamp for io_blocktime calculation */
		2272	ev_tstamp prev_mn_now = mn_now;
		2273
2036	/* update time to cancel out callback processing overhead */	2274	/* update time to cancel out callback processing overhead */
2037	time_update (EV_A_ 1e100);	2275	time_update (EV_A_ 1e100);
2038		2276
2039	waittime = MAX_BLOCKTIME;	2277	waittime = MAX_BLOCKTIME;
2040		2278
…		…
2050	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2288	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2051	if (waittime > to) waittime = to;	2289	if (waittime > to) waittime = to;
2052	}	2290	}
2053	#endif	2291	#endif
2054		2292
		2293	/* don't let timeouts decrease the waittime below timeout_blocktime */
2055	if (expect_false (waittime < timeout_blocktime))	2294	if (expect_false (waittime < timeout_blocktime))
2056	waittime = timeout_blocktime;	2295	waittime = timeout_blocktime;
2057		2296
2058	sleeptime = waittime - backend_fudge;	2297	/* extra check because io_blocktime is commonly 0 */
2059
2060	if (expect_true (sleeptime > io_blocktime))	2298	if (expect_false (io_blocktime))
2061	sleeptime = io_blocktime;
2062
2063	if (sleeptime)
2064	{	2299	{
		2300	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2301
		2302	if (sleeptime > waittime - backend_fudge)
		2303	sleeptime = waittime - backend_fudge;
		2304
		2305	if (expect_true (sleeptime > 0.))
		2306	{
2065	ev_sleep (sleeptime);	2307	ev_sleep (sleeptime);
2066	waittime -= sleeptime;	2308	waittime -= sleeptime;
		2309	}
2067	}	2310	}
2068	}	2311	}
2069		2312
		2313	#if EV_MINIMAL < 2
2070	++loop_count;	2314	++loop_count;
		2315	#endif
		2316	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2071	backend_poll (EV_A_ waittime);	2317	backend_poll (EV_A_ waittime);
		2318	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2072		2319
2073	/* update ev_rt_now, do magic */	2320	/* update ev_rt_now, do magic */
2074	time_update (EV_A_ waittime + sleeptime);	2321	time_update (EV_A_ waittime + sleeptime);
2075	}	2322	}
2076		2323
…		…
2087		2334
2088	/* queue check watchers, to be executed first */	2335	/* queue check watchers, to be executed first */
2089	if (expect_false (checkcnt))	2336	if (expect_false (checkcnt))
2090	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2337	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2091		2338
2092	call_pending (EV_A);	2339	EV_INVOKE_PENDING;
2093	}	2340	}
2094	while (expect_true (	2341	while (expect_true (
2095	activecnt	2342	activecnt
2096	&& !loop_done	2343	&& !loop_done
2097	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))	2344	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
2098	));	2345	));
2099		2346
2100	if (loop_done == EVUNLOOP_ONE)	2347	if (loop_done == EVUNLOOP_ONE)
2101	loop_done = EVUNLOOP_CANCEL;	2348	loop_done = EVUNLOOP_CANCEL;
		2349
		2350	#if EV_MINIMAL < 2
		2351	--loop_depth;
		2352	#endif
2102	}	2353	}
2103		2354
2104	void	2355	void
2105	ev_unloop (EV_P_ int how)	2356	ev_unloop (EV_P_ int how)
2106	{	2357	{
…		…
2137	ev_tstamp mn_prev = mn_now;	2388	ev_tstamp mn_prev = mn_now;
2138		2389
2139	ev_now_update (EV_A);	2390	ev_now_update (EV_A);
2140	timers_reschedule (EV_A_ mn_now - mn_prev);	2391	timers_reschedule (EV_A_ mn_now - mn_prev);
2141	#if EV_PERIODIC_ENABLE	2392	#if EV_PERIODIC_ENABLE
		2393	/* TODO: really do this? */
2142	periodics_reschedule (EV_A);	2394	periodics_reschedule (EV_A);
2143	#endif	2395	#endif
2144	}	2396	}
2145		2397
2146	/*****************************************************************************/	2398	/*****************************************************************************/
		2399	/* singly-linked list management, used when the expected list length is short */
2147		2400
2148	inline_size void	2401	inline_size void
2149	wlist_add (WL *head, WL elem)	2402	wlist_add (WL *head, WL elem)
2150	{	2403	{
2151	elem->next = *head;	2404	elem->next = *head;
…		…
2155	inline_size void	2408	inline_size void
2156	wlist_del (WL *head, WL elem)	2409	wlist_del (WL *head, WL elem)
2157	{	2410	{
2158	while (*head)	2411	while (*head)
2159	{	2412	{
2160	if (*head == elem)	2413	if (expect_true (*head == elem))
2161	{	2414	{
2162	*head = elem->next;	2415	*head = elem->next;
2163	return;	2416	break;
2164	}	2417	}
2165		2418
2166	head = &(*head)->next;	2419	head = &(*head)->next;
2167	}	2420	}
2168	}	2421	}
2169		2422
		2423	/* internal, faster, version of ev_clear_pending */
2170	inline_speed void	2424	inline_speed void
2171	clear_pending (EV_P_ W w)	2425	clear_pending (EV_P_ W w)
2172	{	2426	{
2173	if (w->pending)	2427	if (w->pending)
2174	{	2428	{
2175	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2429	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2176	w->pending = 0;	2430	w->pending = 0;
2177	}	2431	}
2178	}	2432	}
2179		2433
2180	int	2434	int
…		…
2184	int pending = w_->pending;	2438	int pending = w_->pending;
2185		2439
2186	if (expect_true (pending))	2440	if (expect_true (pending))
2187	{	2441	{
2188	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2442	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2443	p->w = (W)&pending_w;
2189	w_->pending = 0;	2444	w_->pending = 0;
2190	p->w = 0;
2191	return p->events;	2445	return p->events;
2192	}	2446	}
2193	else	2447	else
2194	return 0;	2448	return 0;
2195	}	2449	}
2196		2450
2197	inline_size void	2451	inline_size void
2198	pri_adjust (EV_P_ W w)	2452	pri_adjust (EV_P_ W w)
2199	{	2453	{
2200	int pri = w->priority;	2454	int pri = ev_priority (w);
2201	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2455	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2202	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2456	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2203	w->priority = pri;	2457	ev_set_priority (w, pri);
2204	}	2458	}
2205		2459
2206	inline_speed void	2460	inline_speed void
2207	ev_start (EV_P_ W w, int active)	2461	ev_start (EV_P_ W w, int active)
2208	{	2462	{
…		…
2235		2489
2236	ev_start (EV_A_ (W)w, 1);	2490	ev_start (EV_A_ (W)w, 1);
2237	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2491	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2238	wlist_add (&anfds[fd].head, (WL)w);	2492	wlist_add (&anfds[fd].head, (WL)w);
2239		2493
2240	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| 1);	2494	fd_change (EV_A_ fd, w->events & EV__IOFDSET \| EV_ANFD_REIFY);
2241	w->events &= ~EV__IOFDSET;	2495	w->events &= ~EV__IOFDSET;
2242		2496
2243	EV_FREQUENT_CHECK;	2497	EV_FREQUENT_CHECK;
2244	}	2498	}
2245		2499
…		…
2339	}	2593	}
2340		2594
2341	EV_FREQUENT_CHECK;	2595	EV_FREQUENT_CHECK;
2342	}	2596	}
2343		2597
		2598	ev_tstamp
		2599	ev_timer_remaining (EV_P_ ev_timer *w)
		2600	{
		2601	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2602	}
		2603
2344	#if EV_PERIODIC_ENABLE	2604	#if EV_PERIODIC_ENABLE
2345	void noinline	2605	void noinline
2346	ev_periodic_start (EV_P_ ev_periodic *w)	2606	ev_periodic_start (EV_P_ ev_periodic *w)
2347	{	2607	{
2348	if (expect_false (ev_is_active (w)))	2608	if (expect_false (ev_is_active (w)))
…		…
2415	#endif	2675	#endif
2416		2676
2417	void noinline	2677	void noinline
2418	ev_signal_start (EV_P_ ev_signal *w)	2678	ev_signal_start (EV_P_ ev_signal *w)
2419	{	2679	{
2420	#if EV_MULTIPLICITY
2421	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2422	#endif
2423	if (expect_false (ev_is_active (w)))	2680	if (expect_false (ev_is_active (w)))
2424	return;	2681	return;
2425		2682
2426	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2683	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2427		2684
2428	evpipe_init (EV_A);	2685	#if EV_MULTIPLICITY
		2686	assert (("libev: a signal must not be attached to two different loops",
		2687	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));
2429		2688
2430	EV_FREQUENT_CHECK;	2689	signals [w->signum - 1].loop = EV_A;
		2690	#endif
2431		2691
		2692	EV_FREQUENT_CHECK;
		2693
		2694	#if EV_USE_SIGNALFD
		2695	if (sigfd == -2)
2432	{	2696	{
2433	#ifndef _WIN32	2697	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK \| SFD_CLOEXEC);
2434	sigset_t full, prev;	2698	if (sigfd < 0 && errno == EINVAL)
2435	sigfillset (&full);	2699	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2436	sigprocmask (SIG_SETMASK, &full, &prev);
2437	#endif
2438		2700
2439	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2701	if (sigfd >= 0)
		2702	{
		2703	fd_intern (sigfd); /* doing it twice will not hurt */
2440		2704
2441	#ifndef _WIN32	2705	sigemptyset (&sigfd_set);
2442	sigprocmask (SIG_SETMASK, &prev, 0);	2706
2443	#endif	2707	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2708	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2709	ev_io_start (EV_A_ &sigfd_w);
		2710	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2711	}
2444	}	2712	}
		2713
		2714	if (sigfd >= 0)
		2715	{
		2716	/* TODO: check .head */
		2717	sigaddset (&sigfd_set, w->signum);
		2718	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2719
		2720	signalfd (sigfd, &sigfd_set, 0);
		2721	}
		2722	#endif
2445		2723
2446	ev_start (EV_A_ (W)w, 1);	2724	ev_start (EV_A_ (W)w, 1);
2447	wlist_add (&signals [w->signum - 1].head, (WL)w);	2725	wlist_add (&signals [w->signum - 1].head, (WL)w);
2448		2726
2449	if (!((WL)w)->next)	2727	if (!((WL)w)->next)
		2728	# if EV_USE_SIGNALFD
		2729	if (sigfd < 0) /TODO/
		2730	# endif
2450	{	2731	{
2451	#if _WIN32	2732	# if _WIN32
2452	signal (w->signum, ev_sighandler);	2733	signal (w->signum, ev_sighandler);
2453	#else	2734	# else
2454	struct sigaction sa;	2735	struct sigaction sa;
		2736
		2737	evpipe_init (EV_A);
		2738
2455	sa.sa_handler = ev_sighandler;	2739	sa.sa_handler = ev_sighandler;
2456	sigfillset (&sa.sa_mask);	2740	sigfillset (&sa.sa_mask);
2457	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2741	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2458	sigaction (w->signum, &sa, 0);	2742	sigaction (w->signum, &sa, 0);
		2743
		2744	sigemptyset (&sa.sa_mask);
		2745	sigaddset (&sa.sa_mask, w->signum);
		2746	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2459	#endif	2747	#endif
2460	}	2748	}
2461		2749
2462	EV_FREQUENT_CHECK;	2750	EV_FREQUENT_CHECK;
2463	}	2751	}
2464		2752
2465	void noinline	2753	void noinline
…		…
2473		2761
2474	wlist_del (&signals [w->signum - 1].head, (WL)w);	2762	wlist_del (&signals [w->signum - 1].head, (WL)w);
2475	ev_stop (EV_A_ (W)w);	2763	ev_stop (EV_A_ (W)w);
2476		2764
2477	if (!signals [w->signum - 1].head)	2765	if (!signals [w->signum - 1].head)
		2766	{
		2767	#if EV_MULTIPLICITY
		2768	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2769	#endif
		2770	#if EV_USE_SIGNALFD
		2771	if (sigfd >= 0)
		2772	{
		2773	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
		2774	sigdelset (&sigfd_set, w->signum);
		2775	signalfd (sigfd, &sigfd_set, 0);
		2776	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
		2777	/TODO: maybe unblock signal? /
		2778	}
		2779	else
		2780	#endif
2478	signal (w->signum, SIG_DFL);	2781	signal (w->signum, SIG_DFL);
		2782	}
2479		2783
2480	EV_FREQUENT_CHECK;	2784	EV_FREQUENT_CHECK;
2481	}	2785	}
2482		2786
2483	void	2787	void
…		…
2563	}	2867	}
2564	}	2868	}
2565		2869
2566	if (w->wd >= 0)	2870	if (w->wd >= 0)
2567	{	2871	{
		2872	struct statfs sfs;
		2873
2568	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2874	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2569		2875
2570	/* now local changes will be tracked by inotify, but remote changes won't */	2876	/* now local changes will be tracked by inotify, but remote changes won't */
2571	/* unless the filesystem it known to be local, we therefore still poll */	2877	/* unless the filesystem it known to be local, we therefore still poll */
2572	/* also do poll on <2.6.25, but with normal frequency */	2878	/* also do poll on <2.6.25, but with normal frequency */
2573	struct statfs sfs;
2574		2879
2575	if (fs_2625 && !statfs (w->path, &sfs))	2880	if (fs_2625 && !statfs (w->path, &sfs))
2576	if (sfs.f_type == 0x1373 /* devfs */	2881	if (sfs.f_type == 0x1373 /* devfs */
2577	\|\| sfs.f_type == 0xEF53 /* ext2/3 */	2882	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2578	\|\| sfs.f_type == 0x3153464a /* jfs */	2883	\|\| sfs.f_type == 0x3153464a /* jfs */
…		…
2963	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3268	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2964	{	3269	{
2965	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));	3270	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
2966		3271
2967	{	3272	{
2968	struct ev_loop *loop = w->other;	3273	EV_P = w->other;
2969		3274
2970	while (fdchangecnt)	3275	while (fdchangecnt)
2971	{	3276	{
2972	fd_reify (EV_A);	3277	fd_reify (EV_A);
2973	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3278	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2981	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));	3286	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
2982		3287
2983	ev_embed_stop (EV_A_ w);	3288	ev_embed_stop (EV_A_ w);
2984		3289
2985	{	3290	{
2986	struct ev_loop *loop = w->other;	3291	EV_P = w->other;
2987		3292
2988	ev_loop_fork (EV_A);	3293	ev_loop_fork (EV_A);
2989	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3294	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2990	}	3295	}
2991		3296
…		…
3005	{	3310	{
3006	if (expect_false (ev_is_active (w)))	3311	if (expect_false (ev_is_active (w)))
3007	return;	3312	return;
3008		3313
3009	{	3314	{
3010	struct ev_loop *loop = w->other;	3315	EV_P = w->other;
3011	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3316	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3012	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3317	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3013	}	3318	}
3014		3319
3015	EV_FREQUENT_CHECK;	3320	EV_FREQUENT_CHECK;
…		…
3127		3432
3128	void	3433	void
3129	ev_async_send (EV_P_ ev_async *w)	3434	ev_async_send (EV_P_ ev_async *w)
3130	{	3435	{
3131	w->sent = 1;	3436	w->sent = 1;
3132	evpipe_write (EV_A_ &gotasync);	3437	evpipe_write (EV_A_ &async_pending);
3133	}	3438	}
3134	#endif	3439	#endif
3135		3440
3136	/*****************************************************************************/	3441	/*****************************************************************************/
3137		3442
…		…
3201	}	3506	}
3202	}	3507	}
3203		3508
3204	/*****************************************************************************/	3509	/*****************************************************************************/
3205		3510
3206	#if 0	3511	#if EV_WALK_ENABLE
3207	void	3512	void
3208	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))	3513	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))
3209	{	3514	{
3210	int i, j;	3515	int i, j;
3211	ev_watcher_list wl, wn;	3516	ev_watcher_list wl, wn;
…		…
3227	#if EV_USE_INOTIFY	3532	#if EV_USE_INOTIFY
3228	if (ev_cb ((ev_io *)wl) == infy_cb)	3533	if (ev_cb ((ev_io *)wl) == infy_cb)
3229	;	3534	;
3230	else	3535	else
3231	#endif	3536	#endif
3232	if ((ev_io *)wl != &pipeev)	3537	if ((ev_io *)wl != &pipe_w)
3233	if (types & EV_IO)	3538	if (types & EV_IO)
3234	cb (EV_A_ EV_IO, wl);	3539	cb (EV_A_ EV_IO, wl);
3235		3540
3236	wl = wn;	3541	wl = wn;
3237	}	3542	}
…		…
3286	if (types & EV_CHECK)	3591	if (types & EV_CHECK)
3287	for (i = checkcnt; i--; )	3592	for (i = checkcnt; i--; )
3288	cb (EV_A_ EV_CHECK, checks [i]);	3593	cb (EV_A_ EV_CHECK, checks [i]);
3289		3594
3290	if (types & EV_SIGNAL)	3595	if (types & EV_SIGNAL)
3291	for (i = 0; i < signalmax; ++i)	3596	for (i = 0; i < EV_NSIG - 1; ++i)
3292	for (wl = signals [i].head; wl; )	3597	for (wl = signals [i].head; wl; )
3293	{	3598	{
3294	wn = wl->next;	3599	wn = wl->next;
3295	cb (EV_A_ EV_SIGNAL, wl);	3600	cb (EV_A_ EV_SIGNAL, wl);
3296	wl = wn;	3601	wl = wn;

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Comparing libev/ev.c (file contents): Revision 1.287 by root, Mon Apr 20 19:45:58 2009 UTC vs. Revision 1.313 by root, Wed Aug 19 23:44:51 2009 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.287 by root, Mon Apr 20 19:45:58 2009 UTC vs.
Revision 1.313 by root, Wed Aug 19 23:44:51 2009 UTC