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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 1.314 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
…		…
131	# else	133	# else
132	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
133	# endif	135	# endif
134	# endif	136	# endif
135		137
		138	# ifndef EV_USE_SIGNALFD
		139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		140	# define EV_USE_SIGNALFD 1
		141	# else
		142	# define EV_USE_SIGNALFD 0
		143	# endif
		144	# endif
		145
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
137	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
138	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD 1
139	# else	149	# else
140	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
…		…
176	# endif	186	# endif
177	#endif	187	#endif
178		188
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	189	/* this block tries to deduce configuration from header-defined symbols and defaults */
180		190
		191	/* try to deduce the maximum number of signals on this platform */
		192	#if defined (EV_NSIG)
		193	/* use what's provided */
		194	#elif defined (NSIG)
		195	# define EV_NSIG (NSIG)
		196	#elif defined(_NSIG)
		197	# define EV_NSIG (_NSIG)
		198	#elif defined (SIGMAX)
		199	# define EV_NSIG (SIGMAX+1)
		200	#elif defined (SIG_MAX)
		201	# define EV_NSIG (SIG_MAX+1)
		202	#elif defined (_SIG_MAX)
		203	# define EV_NSIG (_SIG_MAX+1)
		204	#elif defined (MAXSIG)
		205	# define EV_NSIG (MAXSIG+1)
		206	#elif defined (MAX_SIG)
		207	# define EV_NSIG (MAX_SIG+1)
		208	#elif defined (SIGARRAYSIZE)
		209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
		210	#elif defined (_sys_nsig)
		211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		212	#else
		213	# error "unable to find value for NSIG, please report"
		214	/* to make it compile regardless, just remove the above line */
		215	# define EV_NSIG 65
		216	#endif
		217
181	#ifndef EV_USE_CLOCK_SYSCALL	218	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	219	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	220	# define EV_USE_CLOCK_SYSCALL 1
184	# else	221	# else
185	# define EV_USE_CLOCK_SYSCALL 0	222	# define EV_USE_CLOCK_SYSCALL 0
…		…
264	# else	301	# else
265	# define EV_USE_EVENTFD 0	302	# define EV_USE_EVENTFD 0
266	# endif	303	# endif
267	#endif	304	#endif
268		305
		306	#ifndef EV_USE_SIGNALFD
		307	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		308	# define EV_USE_SIGNALFD 1
		309	# else
		310	# define EV_USE_SIGNALFD 0
		311	# endif
		312	#endif
		313
269	#if 0 /* debugging */	314	#if 0 /* debugging */
270	# define EV_VERIFY 3	315	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	316	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	317	# define EV_HEAP_CACHE_AT 1
273	#endif	318	#endif
…		…
280	# define EV_USE_4HEAP !EV_MINIMAL	325	# define EV_USE_4HEAP !EV_MINIMAL
281	#endif	326	#endif
282		327
283	#ifndef EV_HEAP_CACHE_AT	328	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	329	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		330	#endif
		331
		332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		333	/* which makes programs even slower. might work on other unices, too. */
		334	#if EV_USE_CLOCK_SYSCALL
		335	# include <syscall.h>
		336	# ifdef SYS_clock_gettime
		337	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		338	# undef EV_USE_MONOTONIC
		339	# define EV_USE_MONOTONIC 1
		340	# else
		341	# undef EV_USE_CLOCK_SYSCALL
		342	# define EV_USE_CLOCK_SYSCALL 0
		343	# endif
285	#endif	344	#endif
286		345
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
288		347
289	#ifndef CLOCK_MONOTONIC	348	#ifndef CLOCK_MONOTONIC
…		…
320		379
321	#if EV_SELECT_IS_WINSOCKET	380	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	381	# include <winsock.h>
323	#endif	382	#endif
324		383
325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326	/* which makes programs even slower. might work on other unices, too. */
327	#if EV_USE_CLOCK_SYSCALL
328	# include <syscall.h>
329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330	# undef EV_USE_MONOTONIC
331	# define EV_USE_MONOTONIC 1
332	#endif
333
334	#if EV_USE_EVENTFD	384	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	385	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	386	# include <stdint.h>
		387	# ifndef EFD_NONBLOCK
		388	# define EFD_NONBLOCK O_NONBLOCK
		389	# endif
		390	# ifndef EFD_CLOEXEC
		391	# ifdef O_CLOEXEC
		392	# define EFD_CLOEXEC O_CLOEXEC
		393	# else
		394	# define EFD_CLOEXEC 02000000
		395	# endif
		396	# endif
337	# ifdef __cplusplus	397	# ifdef __cplusplus
338	extern "C" {	398	extern "C" {
339	# endif	399	# endif
340	int eventfd (unsigned int initval, int flags);	400	int eventfd (unsigned int initval, int flags);
341	# ifdef __cplusplus	401	# ifdef __cplusplus
342	}	402	}
343	# endif	403	# endif
344	#endif	404	#endif
		405
		406	#if EV_USE_SIGNALFD
		407	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		408	# include <stdint.h>
		409	# ifndef SFD_NONBLOCK
		410	# define SFD_NONBLOCK O_NONBLOCK
		411	# endif
		412	# ifndef SFD_CLOEXEC
		413	# ifdef O_CLOEXEC
		414	# define SFD_CLOEXEC O_CLOEXEC
		415	# else
		416	# define SFD_CLOEXEC 02000000
		417	# endif
		418	# endif
		419	# ifdef __cplusplus
		420	extern "C" {
		421	# endif
		422	int signalfd (int fd, const sigset_t *mask, int flags);
		423
		424	struct signalfd_siginfo
		425	{
		426	uint32_t ssi_signo;
		427	char pad[128 - sizeof (uint32_t)];
		428	};
		429	# ifdef __cplusplus
		430	}
		431	# endif
		432	#endif
		433
345		434
346	/**/	435	/**/
347		436
348	#if EV_VERIFY >= 3	437	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
…		…
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;
…		…
407		501
408	#if EV_USE_MONOTONIC	502	#if EV_USE_MONOTONIC
409	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? */
410	#endif	504	#endif
411		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)
		514	#endif
		515
412	#ifdef _WIN32	516	#ifdef _WIN32
413	# include "ev_win32.c"	517	# include "ev_win32.c"
414	#endif	518	#endif
415		519
416	/*****************************************************************************/	520	/*****************************************************************************/
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	582	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	583	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		584
481	/*****************************************************************************/	585	/*****************************************************************************/
482		586
		587	/* set in reify when reification needed */
		588	#define EV_ANFD_REIFY 1
		589
		590	/* file descriptor info structure */
483	typedef struct	591	typedef struct
484	{	592	{
485	WL head;	593	WL head;
486	unsigned char events;	594	unsigned char events; /* the events watched for */
487	unsigned char reify;	595	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 */	596	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
489	unsigned char unused;	597	unsigned char unused;
490	#if EV_USE_EPOLL	598	#if EV_USE_EPOLL
491	unsigned int egen; /* generation counter to counter epoll bugs */	599	unsigned int egen; /* generation counter to counter epoll bugs */
492	#endif	600	#endif
493	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
494	SOCKET handle;	602	SOCKET handle;
495	#endif	603	#endif
496	} ANFD;	604	} ANFD;
497		605
		606	/* stores the pending event set for a given watcher */
498	typedef struct	607	typedef struct
499	{	608	{
500	W w;	609	W w;
501	int events;	610	int events; /* the pending event set for the given watcher */
502	} ANPENDING;	611	} ANPENDING;
503		612
504	#if EV_USE_INOTIFY	613	#if EV_USE_INOTIFY
505	/* hash table entry per inotify-id */	614	/* hash table entry per inotify-id */
506	typedef struct	615	typedef struct
…		…
509	} ANFS;	618	} ANFS;
510	#endif	619	#endif
511		620
512	/* Heap Entry */	621	/* Heap Entry */
513	#if EV_HEAP_CACHE_AT	622	#if EV_HEAP_CACHE_AT
		623	/* a heap element */
514	typedef struct {	624	typedef struct {
515	ev_tstamp at;	625	ev_tstamp at;
516	WT w;	626	WT w;
517	} ANHE;	627	} ANHE;
518		628
519	#define ANHE_w(he) (he).w /* access watcher, read-write */	629	#define ANHE_w(he) (he).w /* access watcher, read-write */
520	#define ANHE_at(he) (he).at /* access cached at, read-only */	630	#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 */	631	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
522	#else	632	#else
		633	/* a heap element */
523	typedef WT ANHE;	634	typedef WT ANHE;
524		635
525	#define ANHE_w(he) (he)	636	#define ANHE_w(he) (he)
526	#define ANHE_at(he) (he)->at	637	#define ANHE_at(he) (he)->at
527	#define ANHE_at_cache(he)	638	#define ANHE_at_cache(he)
…		…
551		662
552	static int ev_default_loop_ptr;	663	static int ev_default_loop_ptr;
553		664
554	#endif	665	#endif
555		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
556	/*****************************************************************************/	679	/*****************************************************************************/
557		680
		681	#ifndef EV_HAVE_EV_TIME
558	ev_tstamp	682	ev_tstamp
559	ev_time (void)	683	ev_time (void)
560	{	684	{
561	#if EV_USE_REALTIME	685	#if EV_USE_REALTIME
562	if (expect_true (have_realtime))	686	if (expect_true (have_realtime))
…		…
569		693
570	struct timeval tv;	694	struct timeval tv;
571	gettimeofday (&tv, 0);	695	gettimeofday (&tv, 0);
572	return tv.tv_sec + tv.tv_usec * 1e-6;	696	return tv.tv_sec + tv.tv_usec * 1e-6;
573	}	697	}
		698	#endif
574		699
575	inline_size ev_tstamp	700	inline_size ev_tstamp
576	get_clock (void)	701	get_clock (void)
577	{	702	{
578	#if EV_USE_MONOTONIC	703	#if EV_USE_MONOTONIC
…		…
614		739
615	tv.tv_sec = (time_t)delay;	740	tv.tv_sec = (time_t)delay;
616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	741	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617		742
618	/* 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 */
619	/* somehting nto guaranteed by newer posix versions, but guaranteed */	744	/* something not guaranteed by newer posix versions, but guaranteed */
620	/* by older ones */	745	/* by older ones */
621	select (0, 0, 0, 0, &tv);	746	select (0, 0, 0, 0, &tv);
622	#endif	747	#endif
623	}	748	}
624	}	749	}
625		750
626	/*****************************************************************************/	751	/*****************************************************************************/
627		752
628	#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 */
629		754
		755	/* find a suitable new size for the given array, */
		756	/* hopefully by rounding to a ncie-to-malloc size */
630	inline_size int	757	inline_size int
631	array_nextsize (int elem, int cur, int cnt)	758	array_nextsize (int elem, int cur, int cnt)
632	{	759	{
633	int ncur = cur + 1;	760	int ncur = cur + 1;
634		761
…		…
680	#define array_free(stem, idx) \	807	#define array_free(stem, idx) \
681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	808	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682		809
683	/*****************************************************************************/	810	/*****************************************************************************/
684		811
		812	/* dummy callback for pending events */
		813	static void noinline
		814	pendingcb (EV_P_ ev_prepare *w, int revents)
		815	{
		816	}
		817
685	void noinline	818	void noinline
686	ev_feed_event (EV_P_ void *w, int revents)	819	ev_feed_event (EV_P_ void *w, int revents)
687	{	820	{
688	W w_ = (W)w;	821	W w_ = (W)w;
689	int pri = ABSPRI (w_);	822	int pri = ABSPRI (w_);
…		…
724	}	857	}
725		858
726	/*****************************************************************************/	859	/*****************************************************************************/
727		860
728	inline_speed void	861	inline_speed void
729	fd_event (EV_P_ int fd, int revents)	862	fd_event_nc (EV_P_ int fd, int revents)
730	{	863	{
731	ANFD *anfd = anfds + fd;	864	ANFD *anfd = anfds + fd;
732	ev_io *w;	865	ev_io *w;
733		866
734	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)
…		…
738	if (ev)	871	if (ev)
739	ev_feed_event (EV_A_ (W)w, ev);	872	ev_feed_event (EV_A_ (W)w, ev);
740	}	873	}
741	}	874	}
742		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
743	void	887	void
744	ev_feed_fd_event (EV_P_ int fd, int revents)	888	ev_feed_fd_event (EV_P_ int fd, int revents)
745	{	889	{
746	if (fd >= 0 && fd < anfdmax)	890	if (fd >= 0 && fd < anfdmax)
747	fd_event (EV_A_ fd, revents);	891	fd_event_nc (EV_A_ fd, revents);
748	}	892	}
749		893
		894	/* make sure the external fd watch events are in-sync */
		895	/* with the kernel/libev internal state */
750	inline_size void	896	inline_size void
751	fd_reify (EV_P)	897	fd_reify (EV_P)
752	{	898	{
753	int i;	899	int i;
754		900
…		…
765		911
766	#if EV_SELECT_IS_WINSOCKET	912	#if EV_SELECT_IS_WINSOCKET
767	if (events)	913	if (events)
768	{	914	{
769	unsigned long arg;	915	unsigned long arg;
770	#ifdef EV_FD_TO_WIN32_HANDLE
771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	916	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));	917	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
776	}	918	}
777	#endif	919	#endif
778		920
779	{	921	{
…		…
789	}	931	}
790		932
791	fdchangecnt = 0;	933	fdchangecnt = 0;
792	}	934	}
793		935
		936	/* something about the given fd changed */
794	inline_size void	937	inline_size void
795	fd_change (EV_P_ int fd, int flags)	938	fd_change (EV_P_ int fd, int flags)
796	{	939	{
797	unsigned char reify = anfds [fd].reify;	940	unsigned char reify = anfds [fd].reify;
798	anfds [fd].reify |= flags;	941	anfds [fd].reify |= flags;
…		…
803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	946	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
804	fdchanges [fdchangecnt - 1] = fd;	947	fdchanges [fdchangecnt - 1] = fd;
805	}	948	}
806	}	949	}
807		950
		951	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
808	inline_speed void	952	inline_speed void
809	fd_kill (EV_P_ int fd)	953	fd_kill (EV_P_ int fd)
810	{	954	{
811	ev_io *w;	955	ev_io *w;
812		956
…		…
815	ev_io_stop (EV_A_ w);	959	ev_io_stop (EV_A_ w);
816	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);
817	}	961	}
818	}	962	}
819		963
		964	/* check whether the given fd is atcually valid, for error recovery */
820	inline_size int	965	inline_size int
821	fd_valid (int fd)	966	fd_valid (int fd)
822	{	967	{
823	#ifdef _WIN32	968	#ifdef _WIN32
824	return _get_osfhandle (fd) != -1;	969	return _get_osfhandle (fd) != -1;
…		…
847		992
848	for (fd = anfdmax; fd--; )	993	for (fd = anfdmax; fd--; )
849	if (anfds [fd].events)	994	if (anfds [fd].events)
850	{	995	{
851	fd_kill (EV_A_ fd);	996	fd_kill (EV_A_ fd);
852	return;	997	break;
853	}	998	}
854	}	999	}
855		1000
856	/* 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 */
857	static void noinline	1002	static void noinline
…		…
862	for (fd = 0; fd < anfdmax; ++fd)	1007	for (fd = 0; fd < anfdmax; ++fd)
863	if (anfds [fd].events)	1008	if (anfds [fd].events)
864	{	1009	{
865	anfds [fd].events = 0;	1010	anfds [fd].events = 0;
866	anfds [fd].emask = 0;	1011	anfds [fd].emask = 0;
867	fd_change (EV_A_ fd, EV__IOFDSET | 1);	1012	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
868	}	1013	}
869	}	1014	}
870		1015
871	/*****************************************************************************/	1016	/*****************************************************************************/
872		1017
…		…
947		1092
948	for (;;)	1093	for (;;)
949	{	1094	{
950	int c = k << 1;	1095	int c = k << 1;
951		1096
952	if (c > N + HEAP0 - 1)	1097	if (c >= N + HEAP0)
953	break;	1098	break;
954		1099
955	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])
956	? 1 : 0;	1101	? 1 : 0;
957		1102
…		…
989		1134
990	heap [k] = he;	1135	heap [k] = he;
991	ev_active (ANHE_w (he)) = k;	1136	ev_active (ANHE_w (he)) = k;
992	}	1137	}
993		1138
		1139	/* move an element suitably so it is in a correct place */
994	inline_size void	1140	inline_size void
995	adjustheap (ANHE *heap, int N, int k)	1141	adjustheap (ANHE *heap, int N, int k)
996	{	1142	{
997	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)]))
998	upheap (heap, k);	1144	upheap (heap, k);
999	else	1145	else
1000	downheap (heap, N, k);	1146	downheap (heap, N, k);
1001	}	1147	}
1002		1148
…		…
1012	upheap (heap, i + HEAP0);	1158	upheap (heap, i + HEAP0);
1013	}	1159	}
1014		1160
1015	/*****************************************************************************/	1161	/*****************************************************************************/
1016		1162
		1163	/* associate signal watchers to a signal signal */
1017	typedef struct	1164	typedef struct
1018	{	1165	{
		1166	EV_ATOMIC_T pending;
		1167	#if EV_MULTIPLICITY
		1168	EV_P;
		1169	#endif
1019	WL head;	1170	WL head;
1020	EV_ATOMIC_T gotsig;
1021	} ANSIG;	1171	} ANSIG;
1022		1172
1023	static ANSIG *signals;	1173	static ANSIG signals [EV_NSIG - 1];
1024	static int signalmax;
1025
1026	static EV_ATOMIC_T gotsig;
1027		1174
1028	/*****************************************************************************/	1175	/*****************************************************************************/
1029		1176
		1177	/* used to prepare libev internal fd's */
		1178	/* this is not fork-safe */
1030	inline_speed void	1179	inline_speed void
1031	fd_intern (int fd)	1180	fd_intern (int fd)
1032	{	1181	{
1033	#ifdef _WIN32	1182	#ifdef _WIN32
1034	unsigned long arg = 1;	1183	unsigned long arg = 1;
…		…
1040	}	1189	}
1041		1190
1042	static void noinline	1191	static void noinline
1043	evpipe_init (EV_P)	1192	evpipe_init (EV_P)
1044	{	1193	{
1045	if (!ev_is_active (&pipeev))	1194	if (!ev_is_active (&pipe_w))
1046	{	1195	{
1047	#if EV_USE_EVENTFD	1196	#if EV_USE_EVENTFD
		1197	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1198	if (evfd < 0 && errno == EINVAL)
1048	if ((evfd = eventfd (0, 0)) >= 0)	1199	evfd = eventfd (0, 0);
		1200
		1201	if (evfd >= 0)
1049	{	1202	{
1050	evpipe [0] = -1;	1203	evpipe [0] = -1;
1051	fd_intern (evfd);	1204	fd_intern (evfd); /* doing it twice doesn't hurt */
1052	ev_io_set (&pipeev, evfd, EV_READ);	1205	ev_io_set (&pipe_w, evfd, EV_READ);
1053	}	1206	}
1054	else	1207	else
1055	#endif	1208	#endif
1056	{	1209	{
1057	while (pipe (evpipe))	1210	while (pipe (evpipe))
1058	ev_syserr ("(libev) error creating signal/async pipe");	1211	ev_syserr ("(libev) error creating signal/async pipe");
1059		1212
1060	fd_intern (evpipe [0]);	1213	fd_intern (evpipe [0]);
1061	fd_intern (evpipe [1]);	1214	fd_intern (evpipe [1]);
1062	ev_io_set (&pipeev, evpipe [0], EV_READ);	1215	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1063	}	1216	}
1064		1217
1065	ev_io_start (EV_A_ &pipeev);	1218	ev_io_start (EV_A_ &pipe_w);
1066	ev_unref (EV_A); /* watcher should not keep loop alive */	1219	ev_unref (EV_A); /* watcher should not keep loop alive */
1067	}	1220	}
1068	}	1221	}
1069		1222
1070	inline_size void	1223	inline_size void
…		…
1088		1241
1089	errno = old_errno;	1242	errno = old_errno;
1090	}	1243	}
1091	}	1244	}
1092		1245
		1246	/* called whenever the libev signal pipe */
		1247	/* got some events (signal, async) */
1093	static void	1248	static void
1094	pipecb (EV_P_ ev_io *iow, int revents)	1249	pipecb (EV_P_ ev_io *iow, int revents)
1095	{	1250	{
		1251	int i;
		1252
1096	#if EV_USE_EVENTFD	1253	#if EV_USE_EVENTFD
1097	if (evfd >= 0)	1254	if (evfd >= 0)
1098	{	1255	{
1099	uint64_t counter;	1256	uint64_t counter;
1100	read (evfd, &counter, sizeof (uint64_t));	1257	read (evfd, &counter, sizeof (uint64_t));
…		…
1104	{	1261	{
1105	char dummy;	1262	char dummy;
1106	read (evpipe [0], &dummy, 1);	1263	read (evpipe [0], &dummy, 1);
1107	}	1264	}
1108		1265
1109	if (gotsig && ev_is_default_loop (EV_A))	1266	if (sig_pending)
1110	{	1267	{
1111	int signum;	1268	sig_pending = 0;
1112	gotsig = 0;
1113		1269
1114	for (signum = signalmax; signum--; )	1270	for (i = EV_NSIG - 1; i--; )
1115	if (signals [signum].gotsig)	1271	if (expect_false (signals [i].pending))
1116	ev_feed_signal_event (EV_A_ signum + 1);	1272	ev_feed_signal_event (EV_A_ i + 1);
1117	}	1273	}
1118		1274
1119	#if EV_ASYNC_ENABLE	1275	#if EV_ASYNC_ENABLE
1120	if (gotasync)	1276	if (async_pending)
1121	{	1277	{
1122	int i;	1278	async_pending = 0;
1123	gotasync = 0;
1124		1279
1125	for (i = asynccnt; i--; )	1280	for (i = asynccnt; i--; )
1126	if (asyncs [i]->sent)	1281	if (asyncs [i]->sent)
1127	{	1282	{
1128	asyncs [i]->sent = 0;	1283	asyncs [i]->sent = 0;
…		…
1136		1291
1137	static void	1292	static void
1138	ev_sighandler (int signum)	1293	ev_sighandler (int signum)
1139	{	1294	{
1140	#if EV_MULTIPLICITY	1295	#if EV_MULTIPLICITY
1141	struct ev_loop *loop = &default_loop_struct;	1296	EV_P = signals [signum - 1].loop;
1142	#endif	1297	#endif
1143		1298
1144	#if _WIN32	1299	#if _WIN32
1145	signal (signum, ev_sighandler);	1300	signal (signum, ev_sighandler);
1146	#endif	1301	#endif
1147		1302
1148	signals [signum - 1].gotsig = 1;	1303	signals [signum - 1].pending = 1;
1149	evpipe_write (EV_A_ &gotsig);	1304	evpipe_write (EV_A_ &sig_pending);
1150	}	1305	}
1151		1306
1152	void noinline	1307	void noinline
1153	ev_feed_signal_event (EV_P_ int signum)	1308	ev_feed_signal_event (EV_P_ int signum)
1154	{	1309	{
1155	WL w;	1310	WL w;
1156		1311
		1312	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1313	return;
		1314
		1315	--signum;
		1316
1157	#if EV_MULTIPLICITY	1317	#if EV_MULTIPLICITY
1158	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 */
1159	#endif	1319	/* or, likely more useful, feeding a signal nobody is waiting for */
1160		1320
1161	--signum;	1321	if (expect_false (signals [signum].loop != EV_A))
1162
1163	if (signum < 0 || signum >= signalmax)
1164	return;	1322	return;
		1323	#endif
1165		1324
1166	signals [signum].gotsig = 0;	1325	signals [signum].pending = 0;
1167		1326
1168	for (w = signals [signum].head; w; w = w->next)	1327	for (w = signals [signum].head; w; w = w->next)
1169	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1328	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1170	}	1329	}
1171		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
1172	/*****************************************************************************/	1351	/*****************************************************************************/
1173		1352
1174	static WL childs [EV_PID_HASHSIZE];	1353	static WL childs [EV_PID_HASHSIZE];
1175		1354
1176	#ifndef _WIN32	1355	#ifndef _WIN32
…		…
1179		1358
1180	#ifndef WIFCONTINUED	1359	#ifndef WIFCONTINUED
1181	# define WIFCONTINUED(status) 0	1360	# define WIFCONTINUED(status) 0
1182	#endif	1361	#endif
1183		1362
		1363	/* handle a single child status event */
1184	inline_speed void	1364	inline_speed void
1185	child_reap (EV_P_ int chain, int pid, int status)	1365	child_reap (EV_P_ int chain, int pid, int status)
1186	{	1366	{
1187	ev_child *w;	1367	ev_child *w;
1188	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1368	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
…		…
1202		1382
1203	#ifndef WCONTINUED	1383	#ifndef WCONTINUED
1204	# define WCONTINUED 0	1384	# define WCONTINUED 0
1205	#endif	1385	#endif
1206		1386
		1387	/* called on sigchld etc., calls waitpid */
1207	static void	1388	static void
1208	childcb (EV_P_ ev_signal *sw, int revents)	1389	childcb (EV_P_ ev_signal *sw, int revents)
1209	{	1390	{
1210	int pid, status;	1391	int pid, status;
1211		1392
…		…
1318	ev_backend (EV_P)	1499	ev_backend (EV_P)
1319	{	1500	{
1320	return backend;	1501	return backend;
1321	}	1502	}
1322		1503
		1504	#if EV_MINIMAL < 2
1323	unsigned int	1505	unsigned int
1324	ev_loop_count (EV_P)	1506	ev_loop_count (EV_P)
1325	{	1507	{
1326	return loop_count;	1508	return loop_count;
1327	}	1509	}
1328		1510
		1511	unsigned int
		1512	ev_loop_depth (EV_P)
		1513	{
		1514	return loop_depth;
		1515	}
		1516
1329	void	1517	void
1330	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1518	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1331	{	1519	{
1332	io_blocktime = interval;	1520	io_blocktime = interval;
1333	}	1521	}
…		…
1336	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1524	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1337	{	1525	{
1338	timeout_blocktime = interval;	1526	timeout_blocktime = interval;
1339	}	1527	}
1340		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 */
1341	static void noinline	1554	static void noinline
1342	loop_init (EV_P_ unsigned int flags)	1555	loop_init (EV_P_ unsigned int flags)
1343	{	1556	{
1344	if (!backend)	1557	if (!backend)
1345	{	1558	{
…		…
1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1574	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1362	have_monotonic = 1;	1575	have_monotonic = 1;
1363	}	1576	}
1364	#endif	1577	#endif
1365		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"));
		1589
1366	ev_rt_now = ev_time ();	1590	ev_rt_now = ev_time ();
1367	mn_now = get_clock ();	1591	mn_now = get_clock ();
1368	now_floor = mn_now;	1592	now_floor = mn_now;
1369	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
1370		1597
1371	io_blocktime = 0.;	1598	io_blocktime = 0.;
1372	timeout_blocktime = 0.;	1599	timeout_blocktime = 0.;
1373	backend = 0;	1600	backend = 0;
1374	backend_fd = -1;	1601	backend_fd = -1;
1375	gotasync = 0;	1602	sig_pending = 0;
		1603	#if EV_ASYNC_ENABLE
		1604	async_pending = 0;
		1605	#endif
1376	#if EV_USE_INOTIFY	1606	#if EV_USE_INOTIFY
1377	fs_fd = -2;	1607	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1378	#endif	1608	#endif
1379		1609	#if EV_USE_SIGNALFD
1380	/* pid check not overridable via env */	1610	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1381	#ifndef _WIN32
1382	if (flags & EVFLAG_FORKCHECK)
1383	curpid = getpid ();
1384	#endif	1611	#endif
1385
1386	if (!(flags & EVFLAG_NOENV)
1387	&& !enable_secure ()
1388	&& getenv ("LIBEV_FLAGS"))
1389	flags = atoi (getenv ("LIBEV_FLAGS"));
1390		1612
1391	if (!(flags & 0x0000ffffU))	1613	if (!(flags & 0x0000ffffU))
1392	flags |= ev_recommended_backends ();	1614	flags |= ev_recommended_backends ();
1393		1615
1394	#if EV_USE_PORT	1616	#if EV_USE_PORT
…		…
1405	#endif	1627	#endif
1406	#if EV_USE_SELECT	1628	#if EV_USE_SELECT
1407	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1629	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1408	#endif	1630	#endif
1409		1631
		1632	ev_prepare_init (&pending_w, pendingcb);
		1633
1410	ev_init (&pipeev, pipecb);	1634	ev_init (&pipe_w, pipecb);
1411	ev_set_priority (&pipeev, EV_MAXPRI);	1635	ev_set_priority (&pipe_w, EV_MAXPRI);
1412	}	1636	}
1413	}	1637	}
1414		1638
		1639	/* free up a loop structure */
1415	static void noinline	1640	static void noinline
1416	loop_destroy (EV_P)	1641	loop_destroy (EV_P)
1417	{	1642	{
1418	int i;	1643	int i;
1419		1644
1420	if (ev_is_active (&pipeev))	1645	if (ev_is_active (&pipe_w))
1421	{	1646	{
1422	ev_ref (EV_A); /* signal watcher */	1647	/*ev_ref (EV_A);*/
1423	ev_io_stop (EV_A_ &pipeev);	1648	/*ev_io_stop (EV_A_ &pipe_w);*/
1424		1649
1425	#if EV_USE_EVENTFD	1650	#if EV_USE_EVENTFD
1426	if (evfd >= 0)	1651	if (evfd >= 0)
1427	close (evfd);	1652	close (evfd);
1428	#endif	1653	#endif
1429		1654
1430	if (evpipe [0] >= 0)	1655	if (evpipe [0] >= 0)
1431	{	1656	{
1432	close (evpipe [0]);	1657	EV_WIN32_CLOSE_FD (evpipe [0]);
1433	close (evpipe [1]);	1658	EV_WIN32_CLOSE_FD (evpipe [1]);
1434	}	1659	}
1435	}	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
1436		1671
1437	#if EV_USE_INOTIFY	1672	#if EV_USE_INOTIFY
1438	if (fs_fd >= 0)	1673	if (fs_fd >= 0)
1439	close (fs_fd);	1674	close (fs_fd);
1440	#endif	1675	#endif
…		…
1464	#if EV_IDLE_ENABLE	1699	#if EV_IDLE_ENABLE
1465	array_free (idle, [i]);	1700	array_free (idle, [i]);
1466	#endif	1701	#endif
1467	}	1702	}
1468		1703
1469	ev_free (anfds); anfdmax = 0;	1704	ev_free (anfds); anfds = 0; anfdmax = 0;
1470		1705
1471	/* have to use the microsoft-never-gets-it-right macro */	1706	/* have to use the microsoft-never-gets-it-right macro */
1472	array_free (rfeed, EMPTY);	1707	array_free (rfeed, EMPTY);
1473	array_free (fdchange, EMPTY);	1708	array_free (fdchange, EMPTY);
1474	array_free (timer, EMPTY);	1709	array_free (timer, EMPTY);
…		…
1505	#endif	1740	#endif
1506	#if EV_USE_INOTIFY	1741	#if EV_USE_INOTIFY
1507	infy_fork (EV_A);	1742	infy_fork (EV_A);
1508	#endif	1743	#endif
1509		1744
1510	if (ev_is_active (&pipeev))	1745	if (ev_is_active (&pipe_w))
1511	{	1746	{
1512	/* this "locks" the handlers against writing to the pipe */	1747	/* this "locks" the handlers against writing to the pipe */
1513	/* while we modify the fd vars */	1748	/* while we modify the fd vars */
1514	gotsig = 1;	1749	sig_pending = 1;
1515	#if EV_ASYNC_ENABLE	1750	#if EV_ASYNC_ENABLE
1516	gotasync = 1;	1751	async_pending = 1;
1517	#endif	1752	#endif
1518		1753
1519	ev_ref (EV_A);	1754	ev_ref (EV_A);
1520	ev_io_stop (EV_A_ &pipeev);	1755	ev_io_stop (EV_A_ &pipe_w);
1521		1756
1522	#if EV_USE_EVENTFD	1757	#if EV_USE_EVENTFD
1523	if (evfd >= 0)	1758	if (evfd >= 0)
1524	close (evfd);	1759	close (evfd);
1525	#endif	1760	#endif
1526		1761
1527	if (evpipe [0] >= 0)	1762	if (evpipe [0] >= 0)
1528	{	1763	{
1529	close (evpipe [0]);	1764	EV_WIN32_CLOSE_FD (evpipe [0]);
1530	close (evpipe [1]);	1765	EV_WIN32_CLOSE_FD (evpipe [1]);
1531	}	1766	}
1532		1767
1533	evpipe_init (EV_A);	1768	evpipe_init (EV_A);
1534	/* now iterate over everything, in case we missed something */	1769	/* now iterate over everything, in case we missed something */
1535	pipecb (EV_A_ &pipeev, EV_READ);	1770	pipecb (EV_A_ &pipe_w, EV_READ);
1536	}	1771	}
1537		1772
1538	postfork = 0;	1773	postfork = 0;
1539	}	1774	}
1540		1775
1541	#if EV_MULTIPLICITY	1776	#if EV_MULTIPLICITY
1542		1777
1543	struct ev_loop *	1778	struct ev_loop *
1544	ev_loop_new (unsigned int flags)	1779	ev_loop_new (unsigned int flags)
1545	{	1780	{
1546	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));
1547		1782
1548	memset (loop, 0, sizeof (struct ev_loop));	1783	memset (EV_A, 0, sizeof (struct ev_loop));
1549
1550	loop_init (EV_A_ flags);	1784	loop_init (EV_A_ flags);
1551		1785
1552	if (ev_backend (EV_A))	1786	if (ev_backend (EV_A))
1553	return loop;	1787	return EV_A;
1554		1788
1555	return 0;	1789	return 0;
1556	}	1790	}
1557		1791
1558	void	1792	void
…		…
1565	void	1799	void
1566	ev_loop_fork (EV_P)	1800	ev_loop_fork (EV_P)
1567	{	1801	{
1568	postfork = 1; /* must be in line with ev_default_fork */	1802	postfork = 1; /* must be in line with ev_default_fork */
1569	}	1803	}
		1804	#endif /* multiplicity */
1570		1805
1571	#if EV_VERIFY	1806	#if EV_VERIFY
1572	static void noinline	1807	static void noinline
1573	verify_watcher (EV_P_ W w)	1808	verify_watcher (EV_P_ W w)
1574	{	1809	{
…		…
1602	verify_watcher (EV_A_ ws [cnt]);	1837	verify_watcher (EV_A_ ws [cnt]);
1603	}	1838	}
1604	}	1839	}
1605	#endif	1840	#endif
1606		1841
		1842	#if EV_MINIMAL < 2
1607	void	1843	void
1608	ev_loop_verify (EV_P)	1844	ev_loop_verify (EV_P)
1609	{	1845	{
1610	#if EV_VERIFY	1846	#if EV_VERIFY
1611	int i;	1847	int i;
…		…
1660	assert (checkmax >= checkcnt);	1896	assert (checkmax >= checkcnt);
1661	array_verify (EV_A_ (W *)checks, checkcnt);	1897	array_verify (EV_A_ (W *)checks, checkcnt);
1662		1898
1663	# if 0	1899	# if 0
1664	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)
1665	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1901	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1666	# endif
1667	#endif	1902	# endif
		1903	#endif
1668	}	1904	}
1669		1905	#endif
1670	#endif /* multiplicity */
1671		1906
1672	#if EV_MULTIPLICITY	1907	#if EV_MULTIPLICITY
1673	struct ev_loop *	1908	struct ev_loop *
1674	ev_default_loop_init (unsigned int flags)	1909	ev_default_loop_init (unsigned int flags)
1675	#else	1910	#else
…		…
1678	#endif	1913	#endif
1679	{	1914	{
1680	if (!ev_default_loop_ptr)	1915	if (!ev_default_loop_ptr)
1681	{	1916	{
1682	#if EV_MULTIPLICITY	1917	#if EV_MULTIPLICITY
1683	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1918	EV_P = ev_default_loop_ptr = &default_loop_struct;
1684	#else	1919	#else
1685	ev_default_loop_ptr = 1;	1920	ev_default_loop_ptr = 1;
1686	#endif	1921	#endif
1687		1922
1688	loop_init (EV_A_ flags);	1923	loop_init (EV_A_ flags);
…		…
1705		1940
1706	void	1941	void
1707	ev_default_destroy (void)	1942	ev_default_destroy (void)
1708	{	1943	{
1709	#if EV_MULTIPLICITY	1944	#if EV_MULTIPLICITY
1710	struct ev_loop *loop = ev_default_loop_ptr;	1945	EV_P = ev_default_loop_ptr;
1711	#endif	1946	#endif
1712		1947
1713	ev_default_loop_ptr = 0;	1948	ev_default_loop_ptr = 0;
1714		1949
1715	#ifndef _WIN32	1950	#ifndef _WIN32
…		…
1722		1957
1723	void	1958	void
1724	ev_default_fork (void)	1959	ev_default_fork (void)
1725	{	1960	{
1726	#if EV_MULTIPLICITY	1961	#if EV_MULTIPLICITY
1727	struct ev_loop *loop = ev_default_loop_ptr;	1962	EV_P = ev_default_loop_ptr;
1728	#endif	1963	#endif
1729		1964
1730	postfork = 1; /* must be in line with ev_loop_fork */	1965	postfork = 1; /* must be in line with ev_loop_fork */
1731	}	1966	}
1732		1967
…		…
1736	ev_invoke (EV_P_ void *w, int revents)	1971	ev_invoke (EV_P_ void *w, int revents)
1737	{	1972	{
1738	EV_CB_INVOKE ((W)w, revents);	1973	EV_CB_INVOKE ((W)w, revents);
1739	}	1974	}
1740		1975
1741	inline_speed void	1976	unsigned int
1742	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)
1743	{	1990	{
1744	int pri;	1991	int pri;
1745		1992
1746	for (pri = NUMPRI; pri--; )	1993	for (pri = NUMPRI; pri--; )
1747	while (pendingcnt [pri])	1994	while (pendingcnt [pri])
1748	{	1995	{
1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1996	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1750		1997
1751	if (expect_true (p->w))
1752	{
1753	/*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 */
1754		2000
1755	p->w->pending = 0;	2001	p->w->pending = 0;
1756	EV_CB_INVOKE (p->w, p->events);	2002	EV_CB_INVOKE (p->w, p->events);
1757	EV_FREQUENT_CHECK;	2003	EV_FREQUENT_CHECK;
1758	}
1759	}	2004	}
1760	}	2005	}
1761		2006
1762	#if EV_IDLE_ENABLE	2007	#if EV_IDLE_ENABLE
		2008	/* make idle watchers pending. this handles the "call-idle */
		2009	/* only when higher priorities are idle" logic */
1763	inline_size void	2010	inline_size void
1764	idle_reify (EV_P)	2011	idle_reify (EV_P)
1765	{	2012	{
1766	if (expect_false (idleall))	2013	if (expect_false (idleall))
1767	{	2014	{
…		…
1780	}	2027	}
1781	}	2028	}
1782	}	2029	}
1783	#endif	2030	#endif
1784		2031
		2032	/* make timers pending */
1785	inline_size void	2033	inline_size void
1786	timers_reify (EV_P)	2034	timers_reify (EV_P)
1787	{	2035	{
1788	EV_FREQUENT_CHECK;	2036	EV_FREQUENT_CHECK;
1789		2037
…		…
1818	feed_reverse_done (EV_A_ EV_TIMEOUT);	2066	feed_reverse_done (EV_A_ EV_TIMEOUT);
1819	}	2067	}
1820	}	2068	}
1821		2069
1822	#if EV_PERIODIC_ENABLE	2070	#if EV_PERIODIC_ENABLE
		2071	/* make periodics pending */
1823	inline_size void	2072	inline_size void
1824	periodics_reify (EV_P)	2073	periodics_reify (EV_P)
1825	{	2074	{
1826	EV_FREQUENT_CHECK;	2075	EV_FREQUENT_CHECK;
1827		2076
…		…
1874		2123
1875	feed_reverse_done (EV_A_ EV_PERIODIC);	2124	feed_reverse_done (EV_A_ EV_PERIODIC);
1876	}	2125	}
1877	}	2126	}
1878		2127
		2128	/* simply recalculate all periodics */
		2129	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1879	static void noinline	2130	static void noinline
1880	periodics_reschedule (EV_P)	2131	periodics_reschedule (EV_P)
1881	{	2132	{
1882	int i;	2133	int i;
1883		2134
…		…
1896		2147
1897	reheap (periodics, periodiccnt);	2148	reheap (periodics, periodiccnt);
1898	}	2149	}
1899	#endif	2150	#endif
1900		2151
		2152	/* adjust all timers by a given offset */
1901	static void noinline	2153	static void noinline
1902	timers_reschedule (EV_P_ ev_tstamp adjust)	2154	timers_reschedule (EV_P_ ev_tstamp adjust)
1903	{	2155	{
1904	int i;	2156	int i;
1905		2157
…		…
1909	ANHE_w (*he)->at += adjust;	2161	ANHE_w (*he)->at += adjust;
1910	ANHE_at_cache (*he);	2162	ANHE_at_cache (*he);
1911	}	2163	}
1912	}	2164	}
1913		2165
		2166	/* fetch new monotonic and realtime times from the kernel */
		2167	/* also detetc if there was a timejump, and act accordingly */
1914	inline_speed void	2168	inline_speed void
1915	time_update (EV_P_ ev_tstamp max_block)	2169	time_update (EV_P_ ev_tstamp max_block)
1916	{	2170	{
1917	int i;
1918
1919	#if EV_USE_MONOTONIC	2171	#if EV_USE_MONOTONIC
1920	if (expect_true (have_monotonic))	2172	if (expect_true (have_monotonic))
1921	{	2173	{
		2174	int i;
1922	ev_tstamp odiff = rtmn_diff;	2175	ev_tstamp odiff = rtmn_diff;
1923		2176
1924	mn_now = get_clock ();	2177	mn_now = get_clock ();
1925		2178
1926	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2179	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1976		2229
1977	mn_now = ev_rt_now;	2230	mn_now = ev_rt_now;
1978	}	2231	}
1979	}	2232	}
1980		2233
1981	static int loop_done;
1982
1983	void	2234	void
1984	ev_loop (EV_P_ int flags)	2235	ev_loop (EV_P_ int flags)
1985	{	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
1986	loop_done = EVUNLOOP_CANCEL;	2243	loop_done = EVUNLOOP_CANCEL;
1987		2244
1988	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 */
1989		2246
1990	do	2247	do
1991	{	2248	{
1992	#if EV_VERIFY >= 2	2249	#if EV_VERIFY >= 2
1993	ev_loop_verify (EV_A);	2250	ev_loop_verify (EV_A);
…		…
2006	/* we might have forked, so queue fork handlers */	2263	/* we might have forked, so queue fork handlers */
2007	if (expect_false (postfork))	2264	if (expect_false (postfork))
2008	if (forkcnt)	2265	if (forkcnt)
2009	{	2266	{
2010	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2267	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2011	call_pending (EV_A);	2268	EV_INVOKE_PENDING;
2012	}	2269	}
2013	#endif	2270	#endif
2014		2271
2015	/* queue prepare watchers (and execute them) */	2272	/* queue prepare watchers (and execute them) */
2016	if (expect_false (preparecnt))	2273	if (expect_false (preparecnt))
2017	{	2274	{
2018	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2275	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2019	call_pending (EV_A);	2276	EV_INVOKE_PENDING;
2020	}	2277	}
		2278
		2279	if (expect_false (loop_done))
		2280	break;
2021		2281
2022	/* we might have forked, so reify kernel state if necessary */	2282	/* we might have forked, so reify kernel state if necessary */
2023	if (expect_false (postfork))	2283	if (expect_false (postfork))
2024	loop_fork (EV_A);	2284	loop_fork (EV_A);
2025		2285
…		…
2031	ev_tstamp waittime = 0.;	2291	ev_tstamp waittime = 0.;
2032	ev_tstamp sleeptime = 0.;	2292	ev_tstamp sleeptime = 0.;
2033		2293
2034	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2294	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
2035	{	2295	{
		2296	/* remember old timestamp for io_blocktime calculation */
		2297	ev_tstamp prev_mn_now = mn_now;
		2298
2036	/* update time to cancel out callback processing overhead */	2299	/* update time to cancel out callback processing overhead */
2037	time_update (EV_A_ 1e100);	2300	time_update (EV_A_ 1e100);
2038		2301
2039	waittime = MAX_BLOCKTIME;	2302	waittime = MAX_BLOCKTIME;
2040		2303
…		…
2050	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;
2051	if (waittime > to) waittime = to;	2314	if (waittime > to) waittime = to;
2052	}	2315	}
2053	#endif	2316	#endif
2054		2317
		2318	/* don't let timeouts decrease the waittime below timeout_blocktime */
2055	if (expect_false (waittime < timeout_blocktime))	2319	if (expect_false (waittime < timeout_blocktime))
2056	waittime = timeout_blocktime;	2320	waittime = timeout_blocktime;
2057		2321
2058	sleeptime = waittime - backend_fudge;	2322	/* extra check because io_blocktime is commonly 0 */
2059
2060	if (expect_true (sleeptime > io_blocktime))	2323	if (expect_false (io_blocktime))
2061	sleeptime = io_blocktime;
2062
2063	if (sleeptime)
2064	{	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	{
2065	ev_sleep (sleeptime);	2332	ev_sleep (sleeptime);
2066	waittime -= sleeptime;	2333	waittime -= sleeptime;
		2334	}
2067	}	2335	}
2068	}	2336	}
2069		2337
		2338	#if EV_MINIMAL < 2
2070	++loop_count;	2339	++loop_count;
		2340	#endif
		2341	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2071	backend_poll (EV_A_ waittime);	2342	backend_poll (EV_A_ waittime);
		2343	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2072		2344
2073	/* update ev_rt_now, do magic */	2345	/* update ev_rt_now, do magic */
2074	time_update (EV_A_ waittime + sleeptime);	2346	time_update (EV_A_ waittime + sleeptime);
2075	}	2347	}
2076		2348
…		…
2087		2359
2088	/* queue check watchers, to be executed first */	2360	/* queue check watchers, to be executed first */
2089	if (expect_false (checkcnt))	2361	if (expect_false (checkcnt))
2090	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2362	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2091		2363
2092	call_pending (EV_A);	2364	EV_INVOKE_PENDING;
2093	}	2365	}
2094	while (expect_true (	2366	while (expect_true (
2095	activecnt	2367	activecnt
2096	&& !loop_done	2368	&& !loop_done
2097	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2369	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2098	));	2370	));
2099		2371
2100	if (loop_done == EVUNLOOP_ONE)	2372	if (loop_done == EVUNLOOP_ONE)
2101	loop_done = EVUNLOOP_CANCEL;	2373	loop_done = EVUNLOOP_CANCEL;
		2374
		2375	#if EV_MINIMAL < 2
		2376	--loop_depth;
		2377	#endif
2102	}	2378	}
2103		2379
2104	void	2380	void
2105	ev_unloop (EV_P_ int how)	2381	ev_unloop (EV_P_ int how)
2106	{	2382	{
…		…
2137	ev_tstamp mn_prev = mn_now;	2413	ev_tstamp mn_prev = mn_now;
2138		2414
2139	ev_now_update (EV_A);	2415	ev_now_update (EV_A);
2140	timers_reschedule (EV_A_ mn_now - mn_prev);	2416	timers_reschedule (EV_A_ mn_now - mn_prev);
2141	#if EV_PERIODIC_ENABLE	2417	#if EV_PERIODIC_ENABLE
		2418	/* TODO: really do this? */
2142	periodics_reschedule (EV_A);	2419	periodics_reschedule (EV_A);
2143	#endif	2420	#endif
2144	}	2421	}
2145		2422
2146	/*****************************************************************************/	2423	/*****************************************************************************/
		2424	/* singly-linked list management, used when the expected list length is short */
2147		2425
2148	inline_size void	2426	inline_size void
2149	wlist_add (WL *head, WL elem)	2427	wlist_add (WL *head, WL elem)
2150	{	2428	{
2151	elem->next = *head;	2429	elem->next = *head;
…		…
2155	inline_size void	2433	inline_size void
2156	wlist_del (WL *head, WL elem)	2434	wlist_del (WL *head, WL elem)
2157	{	2435	{
2158	while (*head)	2436	while (*head)
2159	{	2437	{
2160	if (*head == elem)	2438	if (expect_true (*head == elem))
2161	{	2439	{
2162	*head = elem->next;	2440	*head = elem->next;
2163	return;	2441	break;
2164	}	2442	}
2165		2443
2166	head = &(*head)->next;	2444	head = &(*head)->next;
2167	}	2445	}
2168	}	2446	}
2169		2447
		2448	/* internal, faster, version of ev_clear_pending */
2170	inline_speed void	2449	inline_speed void
2171	clear_pending (EV_P_ W w)	2450	clear_pending (EV_P_ W w)
2172	{	2451	{
2173	if (w->pending)	2452	if (w->pending)
2174	{	2453	{
2175	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2454	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2176	w->pending = 0;	2455	w->pending = 0;
2177	}	2456	}
2178	}	2457	}
2179		2458
2180	int	2459	int
…		…
2184	int pending = w_->pending;	2463	int pending = w_->pending;
2185		2464
2186	if (expect_true (pending))	2465	if (expect_true (pending))
2187	{	2466	{
2188	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2467	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2468	p->w = (W)&pending_w;
2189	w_->pending = 0;	2469	w_->pending = 0;
2190	p->w = 0;
2191	return p->events;	2470	return p->events;
2192	}	2471	}
2193	else	2472	else
2194	return 0;	2473	return 0;
2195	}	2474	}
2196		2475
2197	inline_size void	2476	inline_size void
2198	pri_adjust (EV_P_ W w)	2477	pri_adjust (EV_P_ W w)
2199	{	2478	{
2200	int pri = w->priority;	2479	int pri = ev_priority (w);
2201	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2480	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2202	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2481	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2203	w->priority = pri;	2482	ev_set_priority (w, pri);
2204	}	2483	}
2205		2484
2206	inline_speed void	2485	inline_speed void
2207	ev_start (EV_P_ W w, int active)	2486	ev_start (EV_P_ W w, int active)
2208	{	2487	{
…		…
2235		2514
2236	ev_start (EV_A_ (W)w, 1);	2515	ev_start (EV_A_ (W)w, 1);
2237	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2516	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2238	wlist_add (&anfds[fd].head, (WL)w);	2517	wlist_add (&anfds[fd].head, (WL)w);
2239		2518
2240	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);	2519	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2241	w->events &= ~EV__IOFDSET;	2520	w->events &= ~EV__IOFDSET;
2242		2521
2243	EV_FREQUENT_CHECK;	2522	EV_FREQUENT_CHECK;
2244	}	2523	}
2245		2524
…		…
2339	}	2618	}
2340		2619
2341	EV_FREQUENT_CHECK;	2620	EV_FREQUENT_CHECK;
2342	}	2621	}
2343		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
2344	#if EV_PERIODIC_ENABLE	2629	#if EV_PERIODIC_ENABLE
2345	void noinline	2630	void noinline
2346	ev_periodic_start (EV_P_ ev_periodic *w)	2631	ev_periodic_start (EV_P_ ev_periodic *w)
2347	{	2632	{
2348	if (expect_false (ev_is_active (w)))	2633	if (expect_false (ev_is_active (w)))
…		…
2415	#endif	2700	#endif
2416		2701
2417	void noinline	2702	void noinline
2418	ev_signal_start (EV_P_ ev_signal *w)	2703	ev_signal_start (EV_P_ ev_signal *w)
2419	{	2704	{
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)))	2705	if (expect_false (ev_is_active (w)))
2424	return;	2706	return;
2425		2707
2426	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));
2427		2709
2428	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));
2429		2713
2430	EV_FREQUENT_CHECK;	2714	signals [w->signum - 1].loop = EV_A;
		2715	#endif
2431		2716
		2717	EV_FREQUENT_CHECK;
		2718
		2719	#if EV_USE_SIGNALFD
		2720	if (sigfd == -2)
2432	{	2721	{
2433	#ifndef _WIN32	2722	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2434	sigset_t full, prev;	2723	if (sigfd < 0 && errno == EINVAL)
2435	sigfillset (&full);	2724	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2436	sigprocmask (SIG_SETMASK, &full, &prev);
2437	#endif
2438		2725
2439	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 */
2440		2729
2441	#ifndef _WIN32	2730	sigemptyset (&sigfd_set);
2442	sigprocmask (SIG_SETMASK, &prev, 0);	2731
2443	#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	}
2444	}	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
2445		2748
2446	ev_start (EV_A_ (W)w, 1);	2749	ev_start (EV_A_ (W)w, 1);
2447	wlist_add (&signals [w->signum - 1].head, (WL)w);	2750	wlist_add (&signals [w->signum - 1].head, (WL)w);
2448		2751
2449	if (!((WL)w)->next)	2752	if (!((WL)w)->next)
		2753	# if EV_USE_SIGNALFD
		2754	if (sigfd < 0) /*TODO*/
		2755	# endif
2450	{	2756	{
2451	#if _WIN32	2757	# if _WIN32
2452	signal (w->signum, ev_sighandler);	2758	signal (w->signum, ev_sighandler);
2453	#else	2759	# else
2454	struct sigaction sa;	2760	struct sigaction sa;
		2761
		2762	evpipe_init (EV_A);
		2763
2455	sa.sa_handler = ev_sighandler;	2764	sa.sa_handler = ev_sighandler;
2456	sigfillset (&sa.sa_mask);	2765	sigfillset (&sa.sa_mask);
2457	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 */
2458	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);
2459	#endif	2772	#endif
2460	}	2773	}
2461		2774
2462	EV_FREQUENT_CHECK;	2775	EV_FREQUENT_CHECK;
2463	}	2776	}
2464		2777
2465	void noinline	2778	void noinline
…		…
2473		2786
2474	wlist_del (&signals [w->signum - 1].head, (WL)w);	2787	wlist_del (&signals [w->signum - 1].head, (WL)w);
2475	ev_stop (EV_A_ (W)w);	2788	ev_stop (EV_A_ (W)w);
2476		2789
2477	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
2478	signal (w->signum, SIG_DFL);	2806	signal (w->signum, SIG_DFL);
		2807	}
2479		2808
2480	EV_FREQUENT_CHECK;	2809	EV_FREQUENT_CHECK;
2481	}	2810	}
2482		2811
2483	void	2812	void
…		…
2563	}	2892	}
2564	}	2893	}
2565		2894
2566	if (w->wd >= 0)	2895	if (w->wd >= 0)
2567	{	2896	{
		2897	struct statfs sfs;
		2898
2568	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);
2569		2900
2570	/* 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 */
2571	/* 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 */
2572	/* also do poll on <2.6.25, but with normal frequency */	2903	/* also do poll on <2.6.25, but with normal frequency */
2573	struct statfs sfs;
2574		2904
2575	if (fs_2625 && !statfs (w->path, &sfs))	2905	if (fs_2625 && !statfs (w->path, &sfs))
2576	if (sfs.f_type == 0x1373 /* devfs */	2906	if (sfs.f_type == 0x1373 /* devfs */
2577	|| sfs.f_type == 0xEF53 /* ext2/3 */	2907	|| sfs.f_type == 0xEF53 /* ext2/3 */
2578	|| sfs.f_type == 0x3153464a /* jfs */	2908	|| sfs.f_type == 0x3153464a /* jfs */
…		…
2963	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3293	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2964	{	3294	{
2965	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3295	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2966		3296
2967	{	3297	{
2968	struct ev_loop *loop = w->other;	3298	EV_P = w->other;
2969		3299
2970	while (fdchangecnt)	3300	while (fdchangecnt)
2971	{	3301	{
2972	fd_reify (EV_A);	3302	fd_reify (EV_A);
2973	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3303	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2981	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));
2982		3312
2983	ev_embed_stop (EV_A_ w);	3313	ev_embed_stop (EV_A_ w);
2984		3314
2985	{	3315	{
2986	struct ev_loop *loop = w->other;	3316	EV_P = w->other;
2987		3317
2988	ev_loop_fork (EV_A);	3318	ev_loop_fork (EV_A);
2989	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3319	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2990	}	3320	}
2991		3321
…		…
3005	{	3335	{
3006	if (expect_false (ev_is_active (w)))	3336	if (expect_false (ev_is_active (w)))
3007	return;	3337	return;
3008		3338
3009	{	3339	{
3010	struct ev_loop *loop = w->other;	3340	EV_P = w->other;
3011	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 ()));
3012	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);
3013	}	3343	}
3014		3344
3015	EV_FREQUENT_CHECK;	3345	EV_FREQUENT_CHECK;
…		…
3127		3457
3128	void	3458	void
3129	ev_async_send (EV_P_ ev_async *w)	3459	ev_async_send (EV_P_ ev_async *w)
3130	{	3460	{
3131	w->sent = 1;	3461	w->sent = 1;
3132	evpipe_write (EV_A_ &gotasync);	3462	evpipe_write (EV_A_ &async_pending);
3133	}	3463	}
3134	#endif	3464	#endif
3135		3465
3136	/*****************************************************************************/	3466	/*****************************************************************************/
3137		3467
…		…
3201	}	3531	}
3202	}	3532	}
3203		3533
3204	/*****************************************************************************/	3534	/*****************************************************************************/
3205		3535
3206	#if 0	3536	#if EV_WALK_ENABLE
3207	void	3537	void
3208	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	3538	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3209	{	3539	{
3210	int i, j;	3540	int i, j;
3211	ev_watcher_list *wl, *wn;	3541	ev_watcher_list *wl, *wn;
…		…
3227	#if EV_USE_INOTIFY	3557	#if EV_USE_INOTIFY
3228	if (ev_cb ((ev_io *)wl) == infy_cb)	3558	if (ev_cb ((ev_io *)wl) == infy_cb)
3229	;	3559	;
3230	else	3560	else
3231	#endif	3561	#endif
3232	if ((ev_io *)wl != &pipeev)	3562	if ((ev_io *)wl != &pipe_w)
3233	if (types & EV_IO)	3563	if (types & EV_IO)
3234	cb (EV_A_ EV_IO, wl);	3564	cb (EV_A_ EV_IO, wl);
3235		3565
3236	wl = wn;	3566	wl = wn;
3237	}	3567	}
…		…
3286	if (types & EV_CHECK)	3616	if (types & EV_CHECK)
3287	for (i = checkcnt; i--; )	3617	for (i = checkcnt; i--; )
3288	cb (EV_A_ EV_CHECK, checks [i]);	3618	cb (EV_A_ EV_CHECK, checks [i]);
3289		3619
3290	if (types & EV_SIGNAL)	3620	if (types & EV_SIGNAL)
3291	for (i = 0; i < signalmax; ++i)	3621	for (i = 0; i < EV_NSIG - 1; ++i)
3292	for (wl = signals [i].head; wl; )	3622	for (wl = signals [i].head; wl; )
3293	{	3623	{
3294	wn = wl->next;	3624	wn = wl->next;
3295	cb (EV_A_ EV_SIGNAL, wl);	3625	cb (EV_A_ EV_SIGNAL, wl);
3296	wl = wn;	3626	wl = wn;

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