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Comparing libev/ev.c (file contents):
Revision 1.242 by root, Fri May 9 14:07:19 2008 UTC vs.
Revision 1.273 by root, Mon Nov 3 14:27:06 2008 UTC

…		…
126	# define EV_USE_EVENTFD 1	126	# define EV_USE_EVENTFD 1
127	# else	127	# else
128	# define EV_USE_EVENTFD 0	128	# define EV_USE_EVENTFD 0
129	# endif	129	# endif
130	# endif	130	# endif
131		131
132	#endif	132	#endif
133		133
134	#include <math.h>	134	#include <math.h>
135	#include <stdlib.h>	135	#include <stdlib.h>
136	#include <fcntl.h>	136	#include <fcntl.h>
…		…
154	#ifndef _WIN32	154	#ifndef _WIN32
155	# include <sys/time.h>	155	# include <sys/time.h>
156	# include <sys/wait.h>	156	# include <sys/wait.h>
157	# include <unistd.h>	157	# include <unistd.h>
158	#else	158	#else
		159	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	160	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	161	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	162	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	163	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	164	# endif
164	#endif	165	#endif
165		166
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	167	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		168
168	#ifndef EV_USE_MONOTONIC	169	#ifndef EV_USE_MONOTONIC
		170	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		171	# define EV_USE_MONOTONIC 1
		172	# else
169	# define EV_USE_MONOTONIC 0	173	# define EV_USE_MONOTONIC 0
		174	# endif
170	#endif	175	#endif
171		176
172	#ifndef EV_USE_REALTIME	177	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	178	# define EV_USE_REALTIME 0
174	#endif	179	#endif
175		180
176	#ifndef EV_USE_NANOSLEEP	181	#ifndef EV_USE_NANOSLEEP
		182	# if _POSIX_C_SOURCE >= 199309L
		183	# define EV_USE_NANOSLEEP 1
		184	# else
177	# define EV_USE_NANOSLEEP 0	185	# define EV_USE_NANOSLEEP 0
		186	# endif
178	#endif	187	#endif
179		188
180	#ifndef EV_USE_SELECT	189	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	190	# define EV_USE_SELECT 1
182	#endif	191	#endif
…		…
235	# else	244	# else
236	# define EV_USE_EVENTFD 0	245	# define EV_USE_EVENTFD 0
237	# endif	246	# endif
238	#endif	247	#endif
239		248
		249	#if 0 /* debugging */
		250	# define EV_VERIFY 3
		251	# define EV_USE_4HEAP 1
		252	# define EV_HEAP_CACHE_AT 1
		253	#endif
		254
		255	#ifndef EV_VERIFY
		256	# define EV_VERIFY !EV_MINIMAL
		257	#endif
		258
		259	#ifndef EV_USE_4HEAP
		260	# define EV_USE_4HEAP !EV_MINIMAL
		261	#endif
		262
		263	#ifndef EV_HEAP_CACHE_AT
		264	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		265	#endif
		266
240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	267	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241		268
242	#ifndef CLOCK_MONOTONIC	269	#ifndef CLOCK_MONOTONIC
243	# undef EV_USE_MONOTONIC	270	# undef EV_USE_MONOTONIC
244	# define EV_USE_MONOTONIC 0	271	# define EV_USE_MONOTONIC 0
…		…
259	# include <sys/select.h>	286	# include <sys/select.h>
260	# endif	287	# endif
261	#endif	288	#endif
262		289
263	#if EV_USE_INOTIFY	290	#if EV_USE_INOTIFY
		291	# include <sys/utsname.h>
		292	# include <sys/statfs.h>
264	# include <sys/inotify.h>	293	# include <sys/inotify.h>
		294	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		295	# ifndef IN_DONT_FOLLOW
		296	# undef EV_USE_INOTIFY
		297	# define EV_USE_INOTIFY 0
		298	# endif
265	#endif	299	#endif
266		300
267	#if EV_SELECT_IS_WINSOCKET	301	#if EV_SELECT_IS_WINSOCKET
268	# include <winsock.h>	302	# include <winsock.h>
269	#endif	303	#endif
…		…
279	}	313	}
280	# endif	314	# endif
281	#endif	315	#endif
282		316
283	/**/	317	/**/
		318
		319	#if EV_VERIFY >= 3
		320	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		321	#else
		322	# define EV_FREQUENT_CHECK do { } while (0)
		323	#endif
284		324
285	/*	325	/*
286	* This is used to avoid floating point rounding problems.	326	* This is used to avoid floating point rounding problems.
287	* It is added to ev_rt_now when scheduling periodics	327	* It is added to ev_rt_now when scheduling periodics
288	* to ensure progress, time-wise, even when rounding	328	* to ensure progress, time-wise, even when rounding
…		…
349	{	389	{
350	syserr_cb = cb;	390	syserr_cb = cb;
351	}	391	}
352		392
353	static void noinline	393	static void noinline
354	syserr (const char *msg)	394	ev_syserr (const char *msg)
355	{	395	{
356	if (!msg)	396	if (!msg)
357	msg = "(libev) system error";	397	msg = "(libev) system error";
358		398
359	if (syserr_cb)	399	if (syserr_cb)
…		…
410	typedef struct	450	typedef struct
411	{	451	{
412	WL head;	452	WL head;
413	unsigned char events;	453	unsigned char events;
414	unsigned char reify;	454	unsigned char reify;
		455	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
		456	unsigned char unused;
		457	#if EV_USE_EPOLL
		458	unsigned int egen; /* generation counter to counter epoll bugs */
		459	#endif
415	#if EV_SELECT_IS_WINSOCKET	460	#if EV_SELECT_IS_WINSOCKET
416	SOCKET handle;	461	SOCKET handle;
417	#endif	462	#endif
418	} ANFD;	463	} ANFD;
419		464
…		…
430	WL head;	475	WL head;
431	} ANFS;	476	} ANFS;
432	#endif	477	#endif
433		478
434	/* Heap Entry */	479	/* Heap Entry */
435	#define EV_HEAP_CACHE_AT 0
436	#if EV_HEAP_CACHE_AT	480	#if EV_HEAP_CACHE_AT
437	typedef struct {	481	typedef struct {
		482	ev_tstamp at;
438	WT w;	483	WT w;
439	ev_tstamp at;
440	} ANHE;	484	} ANHE;
441		485
442	#define ANHE_w(he) (he).w /* access watcher, read-write */	486	#define ANHE_w(he) (he).w /* access watcher, read-write */
443	#define ANHE_at(he) (he).at /* access cached at, read-only */	487	#define ANHE_at(he) (he).at /* access cached at, read-only */
444	#define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */	488	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
445	#else	489	#else
446	typedef WT ANHE;	490	typedef WT ANHE;
447		491
448	#define ANHE_w(he) (he)	492	#define ANHE_w(he) (he)
449	#define ANHE_at(he) (he)->at	493	#define ANHE_at(he) (he)->at
450	#define ANHE_at_set(he)	494	#define ANHE_at_cache(he)
451	#endif	495	#endif
452		496
453	#if EV_MULTIPLICITY	497	#if EV_MULTIPLICITY
454		498
455	struct ev_loop	499	struct ev_loop
…		…
533	struct timeval tv;	577	struct timeval tv;
534		578
535	tv.tv_sec = (time_t)delay;	579	tv.tv_sec = (time_t)delay;
536	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	580	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
537		581
		582	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		583	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		584	/* by older ones */
538	select (0, 0, 0, 0, &tv);	585	select (0, 0, 0, 0, &tv);
539	#endif	586	#endif
540	}	587	}
541	}	588	}
542		589
…		…
569	array_realloc (int elem, void *base, int *cur, int cnt)	616	array_realloc (int elem, void *base, int *cur, int cnt)
570	{	617	{
571	*cur = array_nextsize (elem, *cur, cnt);	618	*cur = array_nextsize (elem, *cur, cnt);
572	return ev_realloc (base, elem * *cur);	619	return ev_realloc (base, elem * *cur);
573	}	620	}
		621
		622	#define array_init_zero(base,count) \
		623	memset ((void *)(base), 0, sizeof (*(base)) * (count))
574		624
575	#define array_needsize(type,base,cur,cnt,init) \	625	#define array_needsize(type,base,cur,cnt,init) \
576	if (expect_false ((cnt) > (cur))) \	626	if (expect_false ((cnt) > (cur))) \
577	{ \	627	{ \
578	int ocur_ = (cur); \	628	int ocur_ = (cur); \
…		…
622	ev_feed_event (EV_A_ events [i], type);	672	ev_feed_event (EV_A_ events [i], type);
623	}	673	}
624		674
625	/*****************************************************************************/	675	/*****************************************************************************/
626		676
627	void inline_size
628	anfds_init (ANFD *base, int count)
629	{
630	while (count--)
631	{
632	base->head = 0;
633	base->events = EV_NONE;
634	base->reify = 0;
635
636	++base;
637	}
638	}
639
640	void inline_speed	677	void inline_speed
641	fd_event (EV_P_ int fd, int revents)	678	fd_event (EV_P_ int fd, int revents)
642	{	679	{
643	ANFD *anfd = anfds + fd;	680	ANFD *anfd = anfds + fd;
644	ev_io *w;	681	ev_io *w;
…		…
676	events |= (unsigned char)w->events;	713	events |= (unsigned char)w->events;
677		714
678	#if EV_SELECT_IS_WINSOCKET	715	#if EV_SELECT_IS_WINSOCKET
679	if (events)	716	if (events)
680	{	717	{
681	unsigned long argp;	718	unsigned long arg;
682	#ifdef EV_FD_TO_WIN32_HANDLE	719	#ifdef EV_FD_TO_WIN32_HANDLE
683	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	720	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
684	#else	721	#else
685	anfd->handle = _get_osfhandle (fd);	722	anfd->handle = _get_osfhandle (fd);
686	#endif	723	#endif
687	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	724	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
688	}	725	}
689	#endif	726	#endif
690		727
691	{	728	{
692	unsigned char o_events = anfd->events;	729	unsigned char o_events = anfd->events;
…		…
745	{	782	{
746	int fd;	783	int fd;
747		784
748	for (fd = 0; fd < anfdmax; ++fd)	785	for (fd = 0; fd < anfdmax; ++fd)
749	if (anfds [fd].events)	786	if (anfds [fd].events)
750	if (!fd_valid (fd) == -1 && errno == EBADF)	787	if (!fd_valid (fd) && errno == EBADF)
751	fd_kill (EV_A_ fd);	788	fd_kill (EV_A_ fd);
752	}	789	}
753		790
754	/* called on ENOMEM in select/poll to kill some fds and retry */	791	/* called on ENOMEM in select/poll to kill some fds and retry */
755	static void noinline	792	static void noinline
…		…
773		810
774	for (fd = 0; fd < anfdmax; ++fd)	811	for (fd = 0; fd < anfdmax; ++fd)
775	if (anfds [fd].events)	812	if (anfds [fd].events)
776	{	813	{
777	anfds [fd].events = 0;	814	anfds [fd].events = 0;
		815	anfds [fd].emask = 0;
778	fd_change (EV_A_ fd, EV_IOFDSET | 1);	816	fd_change (EV_A_ fd, EV_IOFDSET | 1);
779	}	817	}
780	}	818	}
781		819
782	/*****************************************************************************/	820	/*****************************************************************************/
…		…
791	* at the moment we allow libev the luxury of two heaps,	829	* at the moment we allow libev the luxury of two heaps,
792	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap	830	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
793	* which is more cache-efficient.	831	* which is more cache-efficient.
794	* the difference is about 5% with 50000+ watchers.	832	* the difference is about 5% with 50000+ watchers.
795	*/	833	*/
796	#define EV_USE_4HEAP !EV_MINIMAL
797	#if EV_USE_4HEAP	834	#if EV_USE_4HEAP
798		835
799	#define DHEAP 4	836	#define DHEAP 4
800	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	837	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
801		838	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
802	/* towards the root */	839	#define UPHEAP_DONE(p,k) ((p) == (k))
803	void inline_speed
804	upheap (ANHE *heap, int k)
805	{
806	ANHE he = heap [k];
807
808	for (;;)
809	{
810	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
811
812	if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
813	break;
814
815	heap [k] = heap [p];
816	ev_active (ANHE_w (heap [k])) = k;
817	k = p;
818	}
819
820	ev_active (ANHE_w (he)) = k;
821	heap [k] = he;
822	}
823		840
824	/* away from the root */	841	/* away from the root */
825	void inline_speed	842	void inline_speed
826	downheap (ANHE *heap, int N, int k)	843	downheap (ANHE *heap, int N, int k)
827	{	844	{
…		…
830		847
831	for (;;)	848	for (;;)
832	{	849	{
833	ev_tstamp minat;	850	ev_tstamp minat;
834	ANHE *minpos;	851	ANHE *minpos;
835	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	852	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
836		853
837	// find minimum child	854	/* find minimum child */
838	if (expect_true (pos + DHEAP - 1 < E))	855	if (expect_true (pos + DHEAP - 1 < E))
839	{	856	{
840	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	857	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
841	if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	858	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
842	if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	859	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
843	if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	860	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
844	}	861	}
845	else if (pos < E)	862	else if (pos < E)
846	{	863	{
847	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	864	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
848	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	865	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
…		…
853	break;	870	break;
854		871
855	if (ANHE_at (he) <= minat)	872	if (ANHE_at (he) <= minat)
856	break;	873	break;
857		874
		875	heap [k] = *minpos;
858	ev_active (ANHE_w (*minpos)) = k;	876	ev_active (ANHE_w (*minpos)) = k;
859	heap [k] = *minpos;
860		877
861	k = minpos - heap;	878	k = minpos - heap;
862	}	879	}
863		880
		881	heap [k] = he;
864	ev_active (ANHE_w (he)) = k;	882	ev_active (ANHE_w (he)) = k;
865	heap [k] = he;
866	}	883	}
867		884
868	#else // 4HEAP	885	#else /* 4HEAP */
869		886
870	#define HEAP0 1	887	#define HEAP0 1
871		888	#define HPARENT(k) ((k) >> 1)
872	/* towards the root */	889	#define UPHEAP_DONE(p,k) (!(p))
873	void inline_speed
874	upheap (ANHE *heap, int k)
875	{
876	ANHE he = heap [k];
877
878	for (;;)
879	{
880	int p = k >> 1;
881
882	/* maybe we could use a dummy element at heap [0]? */
883	if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
884	break;
885
886	heap [k] = heap [p];
887	ev_active (ANHE_w (heap [k])) = k;
888	k = p;
889	}
890
891	heap [k] = w;
892	ev_active (ANHE_w (heap [k])) = k;
893	}
894		890
895	/* away from the root */	891	/* away from the root */
896	void inline_speed	892	void inline_speed
897	downheap (ANHE *heap, int N, int k)	893	downheap (ANHE *heap, int N, int k)
898	{	894	{
…		…
900		896
901	for (;;)	897	for (;;)
902	{	898	{
903	int c = k << 1;	899	int c = k << 1;
904		900
905	if (c > N)	901	if (c > N + HEAP0 - 1)
906	break;	902	break;
907		903
908	c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	904	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
909	? 1 : 0;	905	? 1 : 0;
910		906
911	if (w->at <= ANHE_at (heap [c]))	907	if (ANHE_at (he) <= ANHE_at (heap [c]))
912	break;	908	break;
913		909
914	heap [k] = heap [c];	910	heap [k] = heap [c];
915	ev_active (ANHE_w (heap [k])) = k;	911	ev_active (ANHE_w (heap [k])) = k;
916		912
…		…
920	heap [k] = he;	916	heap [k] = he;
921	ev_active (ANHE_w (he)) = k;	917	ev_active (ANHE_w (he)) = k;
922	}	918	}
923	#endif	919	#endif
924		920
		921	/* towards the root */
		922	void inline_speed
		923	upheap (ANHE *heap, int k)
		924	{
		925	ANHE he = heap [k];
		926
		927	for (;;)
		928	{
		929	int p = HPARENT (k);
		930
		931	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		932	break;
		933
		934	heap [k] = heap [p];
		935	ev_active (ANHE_w (heap [k])) = k;
		936	k = p;
		937	}
		938
		939	heap [k] = he;
		940	ev_active (ANHE_w (he)) = k;
		941	}
		942
925	void inline_size	943	void inline_size
926	adjustheap (ANHE *heap, int N, int k)	944	adjustheap (ANHE *heap, int N, int k)
927	{	945	{
		946	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
928	upheap (heap, k);	947	upheap (heap, k);
		948	else
929	downheap (heap, N, k);	949	downheap (heap, N, k);
		950	}
		951
		952	/* rebuild the heap: this function is used only once and executed rarely */
		953	void inline_size
		954	reheap (ANHE *heap, int N)
		955	{
		956	int i;
		957
		958	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		959	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		960	for (i = 0; i < N; ++i)
		961	upheap (heap, i + HEAP0);
930	}	962	}
931		963
932	/*****************************************************************************/	964	/*****************************************************************************/
933		965
934	typedef struct	966	typedef struct
…		…
940	static ANSIG *signals;	972	static ANSIG *signals;
941	static int signalmax;	973	static int signalmax;
942		974
943	static EV_ATOMIC_T gotsig;	975	static EV_ATOMIC_T gotsig;
944		976
945	void inline_size
946	signals_init (ANSIG *base, int count)
947	{
948	while (count--)
949	{
950	base->head = 0;
951	base->gotsig = 0;
952
953	++base;
954	}
955	}
956
957	/*****************************************************************************/	977	/*****************************************************************************/
958		978
959	void inline_speed	979	void inline_speed
960	fd_intern (int fd)	980	fd_intern (int fd)
961	{	981	{
962	#ifdef _WIN32	982	#ifdef _WIN32
963	int arg = 1;	983	unsigned long arg = 1;
964	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	984	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
965	#else	985	#else
966	fcntl (fd, F_SETFD, FD_CLOEXEC);	986	fcntl (fd, F_SETFD, FD_CLOEXEC);
967	fcntl (fd, F_SETFL, O_NONBLOCK);	987	fcntl (fd, F_SETFL, O_NONBLOCK);
968	#endif	988	#endif
…		…
982	}	1002	}
983	else	1003	else
984	#endif	1004	#endif
985	{	1005	{
986	while (pipe (evpipe))	1006	while (pipe (evpipe))
987	syserr ("(libev) error creating signal/async pipe");	1007	ev_syserr ("(libev) error creating signal/async pipe");
988		1008
989	fd_intern (evpipe [0]);	1009	fd_intern (evpipe [0]);
990	fd_intern (evpipe [1]);	1010	fd_intern (evpipe [1]);
991	ev_io_set (&pipeev, evpipe [0], EV_READ);	1011	ev_io_set (&pipeev, evpipe [0], EV_READ);
992	}	1012	}
…		…
1452		1472
1453	postfork = 0;	1473	postfork = 0;
1454	}	1474	}
1455		1475
1456	#if EV_MULTIPLICITY	1476	#if EV_MULTIPLICITY
		1477
1457	struct ev_loop *	1478	struct ev_loop *
1458	ev_loop_new (unsigned int flags)	1479	ev_loop_new (unsigned int flags)
1459	{	1480	{
1460	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1481	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1461		1482
…		…
1479	void	1500	void
1480	ev_loop_fork (EV_P)	1501	ev_loop_fork (EV_P)
1481	{	1502	{
1482	postfork = 1; /* must be in line with ev_default_fork */	1503	postfork = 1; /* must be in line with ev_default_fork */
1483	}	1504	}
		1505
		1506	#if EV_VERIFY
		1507	static void noinline
		1508	verify_watcher (EV_P_ W w)
		1509	{
		1510	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1511
		1512	if (w->pending)
		1513	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1514	}
		1515
		1516	static void noinline
		1517	verify_heap (EV_P_ ANHE *heap, int N)
		1518	{
		1519	int i;
		1520
		1521	for (i = HEAP0; i < N + HEAP0; ++i)
		1522	{
		1523	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1524	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1525	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1526
		1527	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1528	}
		1529	}
		1530
		1531	static void noinline
		1532	array_verify (EV_P_ W *ws, int cnt)
		1533	{
		1534	while (cnt--)
		1535	{
		1536	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1537	verify_watcher (EV_A_ ws [cnt]);
		1538	}
		1539	}
		1540	#endif
		1541
		1542	void
		1543	ev_loop_verify (EV_P)
		1544	{
		1545	#if EV_VERIFY
		1546	int i;
		1547	WL w;
		1548
		1549	assert (activecnt >= -1);
		1550
		1551	assert (fdchangemax >= fdchangecnt);
		1552	for (i = 0; i < fdchangecnt; ++i)
		1553	assert (("negative fd in fdchanges", fdchanges [i] >= 0));
		1554
		1555	assert (anfdmax >= 0);
		1556	for (i = 0; i < anfdmax; ++i)
		1557	for (w = anfds [i].head; w; w = w->next)
		1558	{
		1559	verify_watcher (EV_A_ (W)w);
		1560	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
		1561	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1562	}
		1563
		1564	assert (timermax >= timercnt);
		1565	verify_heap (EV_A_ timers, timercnt);
		1566
		1567	#if EV_PERIODIC_ENABLE
		1568	assert (periodicmax >= periodiccnt);
		1569	verify_heap (EV_A_ periodics, periodiccnt);
		1570	#endif
		1571
		1572	for (i = NUMPRI; i--; )
		1573	{
		1574	assert (pendingmax [i] >= pendingcnt [i]);
		1575	#if EV_IDLE_ENABLE
		1576	assert (idleall >= 0);
		1577	assert (idlemax [i] >= idlecnt [i]);
		1578	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1579	#endif
		1580	}
		1581
		1582	#if EV_FORK_ENABLE
		1583	assert (forkmax >= forkcnt);
		1584	array_verify (EV_A_ (W *)forks, forkcnt);
		1585	#endif
		1586
		1587	#if EV_ASYNC_ENABLE
		1588	assert (asyncmax >= asynccnt);
		1589	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1590	#endif
		1591
		1592	assert (preparemax >= preparecnt);
		1593	array_verify (EV_A_ (W *)prepares, preparecnt);
		1594
		1595	assert (checkmax >= checkcnt);
		1596	array_verify (EV_A_ (W *)checks, checkcnt);
		1597
		1598	# if 0
		1599	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1600	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1484	#endif	1601	# endif
		1602	#endif
		1603	}
		1604
		1605	#endif /* multiplicity */
1485		1606
1486	#if EV_MULTIPLICITY	1607	#if EV_MULTIPLICITY
1487	struct ev_loop *	1608	struct ev_loop *
1488	ev_default_loop_init (unsigned int flags)	1609	ev_default_loop_init (unsigned int flags)
1489	#else	1610	#else
…		…
1522	{	1643	{
1523	#if EV_MULTIPLICITY	1644	#if EV_MULTIPLICITY
1524	struct ev_loop *loop = ev_default_loop_ptr;	1645	struct ev_loop *loop = ev_default_loop_ptr;
1525	#endif	1646	#endif
1526		1647
		1648	ev_default_loop_ptr = 0;
		1649
1527	#ifndef _WIN32	1650	#ifndef _WIN32
1528	ev_ref (EV_A); /* child watcher */	1651	ev_ref (EV_A); /* child watcher */
1529	ev_signal_stop (EV_A_ &childev);	1652	ev_signal_stop (EV_A_ &childev);
1530	#endif	1653	#endif
1531		1654
…		…
1537	{	1660	{
1538	#if EV_MULTIPLICITY	1661	#if EV_MULTIPLICITY
1539	struct ev_loop *loop = ev_default_loop_ptr;	1662	struct ev_loop *loop = ev_default_loop_ptr;
1540	#endif	1663	#endif
1541		1664
1542	if (backend)
1543	postfork = 1; /* must be in line with ev_loop_fork */	1665	postfork = 1; /* must be in line with ev_loop_fork */
1544	}	1666	}
1545		1667
1546	/*****************************************************************************/	1668	/*****************************************************************************/
1547		1669
1548	void	1670	void
…		…
1565	{	1687	{
1566	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1688	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1567		1689
1568	p->w->pending = 0;	1690	p->w->pending = 0;
1569	EV_CB_INVOKE (p->w, p->events);	1691	EV_CB_INVOKE (p->w, p->events);
		1692	EV_FREQUENT_CHECK;
1570	}	1693	}
1571	}	1694	}
1572	}	1695	}
1573		1696
1574	#if EV_IDLE_ENABLE	1697	#if EV_IDLE_ENABLE
…		…
1595	#endif	1718	#endif
1596		1719
1597	void inline_size	1720	void inline_size
1598	timers_reify (EV_P)	1721	timers_reify (EV_P)
1599	{	1722	{
		1723	EV_FREQUENT_CHECK;
		1724
1600	while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now)	1725	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1601	{	1726	{
1602	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1727	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1603		1728
1604	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1729	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1605		1730
1606	/* first reschedule or stop timer */	1731	/* first reschedule or stop timer */
1607	if (w->repeat)	1732	if (w->repeat)
1608	{	1733	{
1609	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1610
1611	ev_at (w) += w->repeat;	1734	ev_at (w) += w->repeat;
1612	if (ev_at (w) < mn_now)	1735	if (ev_at (w) < mn_now)
1613	ev_at (w) = mn_now;	1736	ev_at (w) = mn_now;
1614		1737
		1738	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1739
1615	ANHE_at_set (timers [HEAP0]);	1740	ANHE_at_cache (timers [HEAP0]);
1616	downheap (timers, timercnt, HEAP0);	1741	downheap (timers, timercnt, HEAP0);
1617	}	1742	}
1618	else	1743	else
1619	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1744	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1620		1745
		1746	EV_FREQUENT_CHECK;
1621	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1747	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1622	}	1748	}
1623	}	1749	}
1624		1750
1625	#if EV_PERIODIC_ENABLE	1751	#if EV_PERIODIC_ENABLE
1626	void inline_size	1752	void inline_size
1627	periodics_reify (EV_P)	1753	periodics_reify (EV_P)
1628	{	1754	{
		1755	EV_FREQUENT_CHECK;
		1756
1629	while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now)	1757	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1630	{	1758	{
1631	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1759	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1632		1760
1633	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1761	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1634		1762
1635	/* first reschedule or stop timer */	1763	/* first reschedule or stop timer */
1636	if (w->reschedule_cb)	1764	if (w->reschedule_cb)
1637	{	1765	{
1638	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1766	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1767
1639	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));	1768	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1769
1640	ANHE_at_set (periodics [HEAP0]);	1770	ANHE_at_cache (periodics [HEAP0]);
1641	downheap (periodics, periodiccnt, HEAP0);	1771	downheap (periodics, periodiccnt, HEAP0);
1642	}	1772	}
1643	else if (w->interval)	1773	else if (w->interval)
1644	{	1774	{
1645	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1775	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1776	/* if next trigger time is not sufficiently in the future, put it there */
		1777	/* this might happen because of floating point inexactness */
1646	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;	1778	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1647	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));	1779	{
		1780	ev_at (w) += w->interval;
		1781
		1782	/* if interval is unreasonably low we might still have a time in the past */
		1783	/* so correct this. this will make the periodic very inexact, but the user */
		1784	/* has effectively asked to get triggered more often than possible */
		1785	if (ev_at (w) < ev_rt_now)
		1786	ev_at (w) = ev_rt_now;
		1787	}
		1788
1648	ANHE_at_set (periodics [HEAP0]);	1789	ANHE_at_cache (periodics [HEAP0]);
1649	downheap (periodics, periodiccnt, HEAP0);	1790	downheap (periodics, periodiccnt, HEAP0);
1650	}	1791	}
1651	else	1792	else
1652	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1793	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1653		1794
		1795	EV_FREQUENT_CHECK;
1654	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1796	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1655	}	1797	}
1656	}	1798	}
1657		1799
1658	static void noinline	1800	static void noinline
…		…
1668	if (w->reschedule_cb)	1810	if (w->reschedule_cb)
1669	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1811	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1670	else if (w->interval)	1812	else if (w->interval)
1671	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1813	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1672		1814
1673	ANHE_at_set (periodics [i]);	1815	ANHE_at_cache (periodics [i]);
1674	}	1816	}
1675		1817
1676	/* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */
1677	for (i = periodiccnt >> 1; --i; )
1678	downheap (periodics, periodiccnt, i + HEAP0);	1818	reheap (periodics, periodiccnt);
1679	}	1819	}
1680	#endif	1820	#endif
1681		1821
1682	void inline_speed	1822	void inline_speed
1683	time_update (EV_P_ ev_tstamp max_block)	1823	time_update (EV_P_ ev_tstamp max_block)
…		…
1741	/* adjust timers. this is easy, as the offset is the same for all of them */	1881	/* adjust timers. this is easy, as the offset is the same for all of them */
1742	for (i = 0; i < timercnt; ++i)	1882	for (i = 0; i < timercnt; ++i)
1743	{	1883	{
1744	ANHE *he = timers + i + HEAP0;	1884	ANHE *he = timers + i + HEAP0;
1745	ANHE_w (*he)->at += ev_rt_now - mn_now;	1885	ANHE_w (*he)->at += ev_rt_now - mn_now;
1746	ANHE_at_set (*he);	1886	ANHE_at_cache (*he);
1747	}	1887	}
1748	}	1888	}
1749		1889
1750	mn_now = ev_rt_now;	1890	mn_now = ev_rt_now;
1751	}	1891	}
…		…
1761	ev_unref (EV_P)	1901	ev_unref (EV_P)
1762	{	1902	{
1763	--activecnt;	1903	--activecnt;
1764	}	1904	}
1765		1905
		1906	void
		1907	ev_now_update (EV_P)
		1908	{
		1909	time_update (EV_A_ 1e100);
		1910	}
		1911
1766	static int loop_done;	1912	static int loop_done;
1767		1913
1768	void	1914	void
1769	ev_loop (EV_P_ int flags)	1915	ev_loop (EV_P_ int flags)
1770	{	1916	{
…		…
1772		1918
1773	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1919	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1774		1920
1775	do	1921	do
1776	{	1922	{
		1923	#if EV_VERIFY >= 2
		1924	ev_loop_verify (EV_A);
		1925	#endif
		1926
1777	#ifndef _WIN32	1927	#ifndef _WIN32
1778	if (expect_false (curpid)) /* penalise the forking check even more */	1928	if (expect_false (curpid)) /* penalise the forking check even more */
1779	if (expect_false (getpid () != curpid))	1929	if (expect_false (getpid () != curpid))
1780	{	1930	{
1781	curpid = getpid ();	1931	curpid = getpid ();
…		…
1975		2125
1976	if (expect_false (ev_is_active (w)))	2126	if (expect_false (ev_is_active (w)))
1977	return;	2127	return;
1978		2128
1979	assert (("ev_io_start called with negative fd", fd >= 0));	2129	assert (("ev_io_start called with negative fd", fd >= 0));
		2130	assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE))));
		2131
		2132	EV_FREQUENT_CHECK;
1980		2133
1981	ev_start (EV_A_ (W)w, 1);	2134	ev_start (EV_A_ (W)w, 1);
1982	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2135	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1983	wlist_add (&anfds[fd].head, (WL)w);	2136	wlist_add (&anfds[fd].head, (WL)w);
1984		2137
1985	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2138	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1986	w->events &= ~EV_IOFDSET;	2139	w->events &= ~EV_IOFDSET;
		2140
		2141	EV_FREQUENT_CHECK;
1987	}	2142	}
1988		2143
1989	void noinline	2144	void noinline
1990	ev_io_stop (EV_P_ ev_io *w)	2145	ev_io_stop (EV_P_ ev_io *w)
1991	{	2146	{
…		…
1993	if (expect_false (!ev_is_active (w)))	2148	if (expect_false (!ev_is_active (w)))
1994	return;	2149	return;
1995		2150
1996	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2151	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1997		2152
		2153	EV_FREQUENT_CHECK;
		2154
1998	wlist_del (&anfds[w->fd].head, (WL)w);	2155	wlist_del (&anfds[w->fd].head, (WL)w);
1999	ev_stop (EV_A_ (W)w);	2156	ev_stop (EV_A_ (W)w);
2000		2157
2001	fd_change (EV_A_ w->fd, 1);	2158	fd_change (EV_A_ w->fd, 1);
		2159
		2160	EV_FREQUENT_CHECK;
2002	}	2161	}
2003		2162
2004	void noinline	2163	void noinline
2005	ev_timer_start (EV_P_ ev_timer *w)	2164	ev_timer_start (EV_P_ ev_timer *w)
2006	{	2165	{
…		…
2009		2168
2010	ev_at (w) += mn_now;	2169	ev_at (w) += mn_now;
2011		2170
2012	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2171	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2013		2172
		2173	EV_FREQUENT_CHECK;
		2174
		2175	++timercnt;
2014	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2176	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2015	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	2177	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2016	ANHE_w (timers [ev_active (w)]) = (WT)w;	2178	ANHE_w (timers [ev_active (w)]) = (WT)w;
2017	ANHE_at_set (timers [ev_active (w)]);	2179	ANHE_at_cache (timers [ev_active (w)]);
2018	upheap (timers, ev_active (w));	2180	upheap (timers, ev_active (w));
		2181
		2182	EV_FREQUENT_CHECK;
2019		2183
2020	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2184	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2021	}	2185	}
2022		2186
2023	void noinline	2187	void noinline
…		…
2025	{	2189	{
2026	clear_pending (EV_A_ (W)w);	2190	clear_pending (EV_A_ (W)w);
2027	if (expect_false (!ev_is_active (w)))	2191	if (expect_false (!ev_is_active (w)))
2028	return;	2192	return;
2029		2193
		2194	EV_FREQUENT_CHECK;
		2195
2030	{	2196	{
2031	int active = ev_active (w);	2197	int active = ev_active (w);
2032		2198
2033	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2199	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2034		2200
		2201	--timercnt;
		2202
2035	if (expect_true (active < timercnt + HEAP0 - 1))	2203	if (expect_true (active < timercnt + HEAP0))
2036	{	2204	{
2037	timers [active] = timers [timercnt + HEAP0 - 1];	2205	timers [active] = timers [timercnt + HEAP0];
2038	adjustheap (timers, timercnt, active);	2206	adjustheap (timers, timercnt, active);
2039	}	2207	}
2040
2041	--timercnt;
2042	}	2208	}
		2209
		2210	EV_FREQUENT_CHECK;
2043		2211
2044	ev_at (w) -= mn_now;	2212	ev_at (w) -= mn_now;
2045		2213
2046	ev_stop (EV_A_ (W)w);	2214	ev_stop (EV_A_ (W)w);
2047	}	2215	}
2048		2216
2049	void noinline	2217	void noinline
2050	ev_timer_again (EV_P_ ev_timer *w)	2218	ev_timer_again (EV_P_ ev_timer *w)
2051	{	2219	{
		2220	EV_FREQUENT_CHECK;
		2221
2052	if (ev_is_active (w))	2222	if (ev_is_active (w))
2053	{	2223	{
2054	if (w->repeat)	2224	if (w->repeat)
2055	{	2225	{
2056	ev_at (w) = mn_now + w->repeat;	2226	ev_at (w) = mn_now + w->repeat;
2057	ANHE_at_set (timers [ev_active (w)]);	2227	ANHE_at_cache (timers [ev_active (w)]);
2058	adjustheap (timers, timercnt, ev_active (w));	2228	adjustheap (timers, timercnt, ev_active (w));
2059	}	2229	}
2060	else	2230	else
2061	ev_timer_stop (EV_A_ w);	2231	ev_timer_stop (EV_A_ w);
2062	}	2232	}
2063	else if (w->repeat)	2233	else if (w->repeat)
2064	{	2234	{
2065	ev_at (w) = w->repeat;	2235	ev_at (w) = w->repeat;
2066	ev_timer_start (EV_A_ w);	2236	ev_timer_start (EV_A_ w);
2067	}	2237	}
		2238
		2239	EV_FREQUENT_CHECK;
2068	}	2240	}
2069		2241
2070	#if EV_PERIODIC_ENABLE	2242	#if EV_PERIODIC_ENABLE
2071	void noinline	2243	void noinline
2072	ev_periodic_start (EV_P_ ev_periodic *w)	2244	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2083	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2255	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2084	}	2256	}
2085	else	2257	else
2086	ev_at (w) = w->offset;	2258	ev_at (w) = w->offset;
2087		2259
		2260	EV_FREQUENT_CHECK;
		2261
		2262	++periodiccnt;
2088	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2263	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2089	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	2264	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2090	ANHE_w (periodics [ev_active (w)]) = (WT)w;	2265	ANHE_w (periodics [ev_active (w)]) = (WT)w;
		2266	ANHE_at_cache (periodics [ev_active (w)]);
2091	upheap (periodics, ev_active (w));	2267	upheap (periodics, ev_active (w));
		2268
		2269	EV_FREQUENT_CHECK;
2092		2270
2093	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2271	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2094	}	2272	}
2095		2273
2096	void noinline	2274	void noinline
…		…
2098	{	2276	{
2099	clear_pending (EV_A_ (W)w);	2277	clear_pending (EV_A_ (W)w);
2100	if (expect_false (!ev_is_active (w)))	2278	if (expect_false (!ev_is_active (w)))
2101	return;	2279	return;
2102		2280
		2281	EV_FREQUENT_CHECK;
		2282
2103	{	2283	{
2104	int active = ev_active (w);	2284	int active = ev_active (w);
2105		2285
2106	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2286	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2107		2287
		2288	--periodiccnt;
		2289
2108	if (expect_true (active < periodiccnt + HEAP0 - 1))	2290	if (expect_true (active < periodiccnt + HEAP0))
2109	{	2291	{
2110	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2292	periodics [active] = periodics [periodiccnt + HEAP0];
2111	adjustheap (periodics, periodiccnt, active);	2293	adjustheap (periodics, periodiccnt, active);
2112	}	2294	}
2113
2114	--periodiccnt;
2115	}	2295	}
		2296
		2297	EV_FREQUENT_CHECK;
2116		2298
2117	ev_stop (EV_A_ (W)w);	2299	ev_stop (EV_A_ (W)w);
2118	}	2300	}
2119		2301
2120	void noinline	2302	void noinline
…		…
2140	return;	2322	return;
2141		2323
2142	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2324	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2143		2325
2144	evpipe_init (EV_A);	2326	evpipe_init (EV_A);
		2327
		2328	EV_FREQUENT_CHECK;
2145		2329
2146	{	2330	{
2147	#ifndef _WIN32	2331	#ifndef _WIN32
2148	sigset_t full, prev;	2332	sigset_t full, prev;
2149	sigfillset (&full);	2333	sigfillset (&full);
2150	sigprocmask (SIG_SETMASK, &full, &prev);	2334	sigprocmask (SIG_SETMASK, &full, &prev);
2151	#endif	2335	#endif
2152		2336
2153	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2337	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2154		2338
2155	#ifndef _WIN32	2339	#ifndef _WIN32
2156	sigprocmask (SIG_SETMASK, &prev, 0);	2340	sigprocmask (SIG_SETMASK, &prev, 0);
2157	#endif	2341	#endif
2158	}	2342	}
…		…
2170	sigfillset (&sa.sa_mask);	2354	sigfillset (&sa.sa_mask);
2171	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2355	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2172	sigaction (w->signum, &sa, 0);	2356	sigaction (w->signum, &sa, 0);
2173	#endif	2357	#endif
2174	}	2358	}
		2359
		2360	EV_FREQUENT_CHECK;
2175	}	2361	}
2176		2362
2177	void noinline	2363	void noinline
2178	ev_signal_stop (EV_P_ ev_signal *w)	2364	ev_signal_stop (EV_P_ ev_signal *w)
2179	{	2365	{
2180	clear_pending (EV_A_ (W)w);	2366	clear_pending (EV_A_ (W)w);
2181	if (expect_false (!ev_is_active (w)))	2367	if (expect_false (!ev_is_active (w)))
2182	return;	2368	return;
2183		2369
		2370	EV_FREQUENT_CHECK;
		2371
2184	wlist_del (&signals [w->signum - 1].head, (WL)w);	2372	wlist_del (&signals [w->signum - 1].head, (WL)w);
2185	ev_stop (EV_A_ (W)w);	2373	ev_stop (EV_A_ (W)w);
2186		2374
2187	if (!signals [w->signum - 1].head)	2375	if (!signals [w->signum - 1].head)
2188	signal (w->signum, SIG_DFL);	2376	signal (w->signum, SIG_DFL);
		2377
		2378	EV_FREQUENT_CHECK;
2189	}	2379	}
2190		2380
2191	void	2381	void
2192	ev_child_start (EV_P_ ev_child *w)	2382	ev_child_start (EV_P_ ev_child *w)
2193	{	2383	{
…		…
2195	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2385	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2196	#endif	2386	#endif
2197	if (expect_false (ev_is_active (w)))	2387	if (expect_false (ev_is_active (w)))
2198	return;	2388	return;
2199		2389
		2390	EV_FREQUENT_CHECK;
		2391
2200	ev_start (EV_A_ (W)w, 1);	2392	ev_start (EV_A_ (W)w, 1);
2201	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2393	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2394
		2395	EV_FREQUENT_CHECK;
2202	}	2396	}
2203		2397
2204	void	2398	void
2205	ev_child_stop (EV_P_ ev_child *w)	2399	ev_child_stop (EV_P_ ev_child *w)
2206	{	2400	{
2207	clear_pending (EV_A_ (W)w);	2401	clear_pending (EV_A_ (W)w);
2208	if (expect_false (!ev_is_active (w)))	2402	if (expect_false (!ev_is_active (w)))
2209	return;	2403	return;
2210		2404
		2405	EV_FREQUENT_CHECK;
		2406
2211	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2407	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2212	ev_stop (EV_A_ (W)w);	2408	ev_stop (EV_A_ (W)w);
		2409
		2410	EV_FREQUENT_CHECK;
2213	}	2411	}
2214		2412
2215	#if EV_STAT_ENABLE	2413	#if EV_STAT_ENABLE
2216		2414
2217	# ifdef _WIN32	2415	# ifdef _WIN32
2218	# undef lstat	2416	# undef lstat
2219	# define lstat(a,b) _stati64 (a,b)	2417	# define lstat(a,b) _stati64 (a,b)
2220	# endif	2418	# endif
2221		2419
2222	#define DEF_STAT_INTERVAL 5.0074891	2420	#define DEF_STAT_INTERVAL 5.0074891
		2421	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2223	#define MIN_STAT_INTERVAL 0.1074891	2422	#define MIN_STAT_INTERVAL 0.1074891
2224		2423
2225	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2424	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2226		2425
2227	#if EV_USE_INOTIFY	2426	#if EV_USE_INOTIFY
2228	# define EV_INOTIFY_BUFSIZE 8192	2427	# define EV_INOTIFY_BUFSIZE 8192
…		…
2232	{	2431	{
2233	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	2432	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2234		2433
2235	if (w->wd < 0)	2434	if (w->wd < 0)
2236	{	2435	{
		2436	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2237	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2437	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2238		2438
2239	/* monitor some parent directory for speedup hints */	2439	/* monitor some parent directory for speedup hints */
2240	/* note that exceeding the hardcoded limit is not a correctness issue, */	2440	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2241	/* but an efficiency issue only */	2441	/* but an efficiency issue only */
2242	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2442	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2243	{	2443	{
2244	char path [4096];	2444	char path [4096];
2245	strcpy (path, w->path);	2445	strcpy (path, w->path);
…		…
2259	}	2459	}
2260	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2460	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2261	}	2461	}
2262	}	2462	}
2263	else	2463	else
2264	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */	2464	{
2265
2266	if (w->wd >= 0)
2267	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2465	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2466
		2467	/* now local changes will be tracked by inotify, but remote changes won't */
		2468	/* unless the filesystem it known to be local, we therefore still poll */
		2469	/* also do poll on <2.6.25, but with normal frequency */
		2470	struct statfs sfs;
		2471
		2472	if (fs_2625 && !statfs (w->path, &sfs))
		2473	if (sfs.f_type == 0x1373 /* devfs */
		2474	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2475	|| sfs.f_type == 0x3153464a /* jfs */
		2476	|| sfs.f_type == 0x52654973 /* reiser3 */
		2477	|| sfs.f_type == 0x01021994 /* tempfs */
		2478	|| sfs.f_type == 0x58465342 /* xfs */)
		2479	return;
		2480
		2481	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2482	ev_timer_again (EV_A_ &w->timer);
		2483	}
2268	}	2484	}
2269		2485
2270	static void noinline	2486	static void noinline
2271	infy_del (EV_P_ ev_stat *w)	2487	infy_del (EV_P_ ev_stat *w)
2272	{	2488	{
…		…
2286		2502
2287	static void noinline	2503	static void noinline
2288	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2504	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2289	{	2505	{
2290	if (slot < 0)	2506	if (slot < 0)
2291	/* overflow, need to check for all hahs slots */	2507	/* overflow, need to check for all hash slots */
2292	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2508	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2293	infy_wd (EV_A_ slot, wd, ev);	2509	infy_wd (EV_A_ slot, wd, ev);
2294	else	2510	else
2295	{	2511	{
2296	WL w_;	2512	WL w_;
…		…
2325	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2541	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2326	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2542	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2327	}	2543	}
2328		2544
2329	void inline_size	2545	void inline_size
		2546	check_2625 (EV_P)
		2547	{
		2548	/* kernels < 2.6.25 are borked
		2549	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2550	*/
		2551	struct utsname buf;
		2552	int major, minor, micro;
		2553
		2554	if (uname (&buf))
		2555	return;
		2556
		2557	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2558	return;
		2559
		2560	if (major < 2
		2561	|| (major == 2 && minor < 6)
		2562	|| (major == 2 && minor == 6 && micro < 25))
		2563	return;
		2564
		2565	fs_2625 = 1;
		2566	}
		2567
		2568	void inline_size
2330	infy_init (EV_P)	2569	infy_init (EV_P)
2331	{	2570	{
2332	if (fs_fd != -2)	2571	if (fs_fd != -2)
2333	return;	2572	return;
		2573
		2574	fs_fd = -1;
		2575
		2576	check_2625 (EV_A);
2334		2577
2335	fs_fd = inotify_init ();	2578	fs_fd = inotify_init ();
2336		2579
2337	if (fs_fd >= 0)	2580	if (fs_fd >= 0)
2338	{	2581	{
…		…
2366	w->wd = -1;	2609	w->wd = -1;
2367		2610
2368	if (fs_fd >= 0)	2611	if (fs_fd >= 0)
2369	infy_add (EV_A_ w); /* re-add, no matter what */	2612	infy_add (EV_A_ w); /* re-add, no matter what */
2370	else	2613	else
2371	ev_timer_start (EV_A_ &w->timer);	2614	ev_timer_again (EV_A_ &w->timer);
2372	}	2615	}
2373
2374	}	2616	}
2375	}	2617	}
2376		2618
		2619	#endif
		2620
		2621	#ifdef _WIN32
		2622	# define EV_LSTAT(p,b) _stati64 (p, b)
		2623	#else
		2624	# define EV_LSTAT(p,b) lstat (p, b)
2377	#endif	2625	#endif
2378		2626
2379	void	2627	void
2380	ev_stat_stat (EV_P_ ev_stat *w)	2628	ev_stat_stat (EV_P_ ev_stat *w)
2381	{	2629	{
…		…
2408	|| w->prev.st_atime != w->attr.st_atime	2656	|| w->prev.st_atime != w->attr.st_atime
2409	|| w->prev.st_mtime != w->attr.st_mtime	2657	|| w->prev.st_mtime != w->attr.st_mtime
2410	|| w->prev.st_ctime != w->attr.st_ctime	2658	|| w->prev.st_ctime != w->attr.st_ctime
2411	) {	2659	) {
2412	#if EV_USE_INOTIFY	2660	#if EV_USE_INOTIFY
		2661	if (fs_fd >= 0)
		2662	{
2413	infy_del (EV_A_ w);	2663	infy_del (EV_A_ w);
2414	infy_add (EV_A_ w);	2664	infy_add (EV_A_ w);
2415	ev_stat_stat (EV_A_ w); /* avoid race... */	2665	ev_stat_stat (EV_A_ w); /* avoid race... */
		2666	}
2416	#endif	2667	#endif
2417		2668
2418	ev_feed_event (EV_A_ w, EV_STAT);	2669	ev_feed_event (EV_A_ w, EV_STAT);
2419	}	2670	}
2420	}	2671	}
…		…
2423	ev_stat_start (EV_P_ ev_stat *w)	2674	ev_stat_start (EV_P_ ev_stat *w)
2424	{	2675	{
2425	if (expect_false (ev_is_active (w)))	2676	if (expect_false (ev_is_active (w)))
2426	return;	2677	return;
2427		2678
2428	/* since we use memcmp, we need to clear any padding data etc. */
2429	memset (&w->prev, 0, sizeof (ev_statdata));
2430	memset (&w->attr, 0, sizeof (ev_statdata));
2431
2432	ev_stat_stat (EV_A_ w);	2679	ev_stat_stat (EV_A_ w);
2433		2680
		2681	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2434	if (w->interval < MIN_STAT_INTERVAL)	2682	w->interval = MIN_STAT_INTERVAL;
2435	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2436		2683
2437	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2684	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2438	ev_set_priority (&w->timer, ev_priority (w));	2685	ev_set_priority (&w->timer, ev_priority (w));
2439		2686
2440	#if EV_USE_INOTIFY	2687	#if EV_USE_INOTIFY
2441	infy_init (EV_A);	2688	infy_init (EV_A);
2442		2689
2443	if (fs_fd >= 0)	2690	if (fs_fd >= 0)
2444	infy_add (EV_A_ w);	2691	infy_add (EV_A_ w);
2445	else	2692	else
2446	#endif	2693	#endif
2447	ev_timer_start (EV_A_ &w->timer);	2694	ev_timer_again (EV_A_ &w->timer);
2448		2695
2449	ev_start (EV_A_ (W)w, 1);	2696	ev_start (EV_A_ (W)w, 1);
		2697
		2698	EV_FREQUENT_CHECK;
2450	}	2699	}
2451		2700
2452	void	2701	void
2453	ev_stat_stop (EV_P_ ev_stat *w)	2702	ev_stat_stop (EV_P_ ev_stat *w)
2454	{	2703	{
2455	clear_pending (EV_A_ (W)w);	2704	clear_pending (EV_A_ (W)w);
2456	if (expect_false (!ev_is_active (w)))	2705	if (expect_false (!ev_is_active (w)))
2457	return;	2706	return;
2458		2707
		2708	EV_FREQUENT_CHECK;
		2709
2459	#if EV_USE_INOTIFY	2710	#if EV_USE_INOTIFY
2460	infy_del (EV_A_ w);	2711	infy_del (EV_A_ w);
2461	#endif	2712	#endif
2462	ev_timer_stop (EV_A_ &w->timer);	2713	ev_timer_stop (EV_A_ &w->timer);
2463		2714
2464	ev_stop (EV_A_ (W)w);	2715	ev_stop (EV_A_ (W)w);
		2716
		2717	EV_FREQUENT_CHECK;
2465	}	2718	}
2466	#endif	2719	#endif
2467		2720
2468	#if EV_IDLE_ENABLE	2721	#if EV_IDLE_ENABLE
2469	void	2722	void
…		…
2471	{	2724	{
2472	if (expect_false (ev_is_active (w)))	2725	if (expect_false (ev_is_active (w)))
2473	return;	2726	return;
2474		2727
2475	pri_adjust (EV_A_ (W)w);	2728	pri_adjust (EV_A_ (W)w);
		2729
		2730	EV_FREQUENT_CHECK;
2476		2731
2477	{	2732	{
2478	int active = ++idlecnt [ABSPRI (w)];	2733	int active = ++idlecnt [ABSPRI (w)];
2479		2734
2480	++idleall;	2735	++idleall;
2481	ev_start (EV_A_ (W)w, active);	2736	ev_start (EV_A_ (W)w, active);
2482		2737
2483	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2738	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2484	idles [ABSPRI (w)][active - 1] = w;	2739	idles [ABSPRI (w)][active - 1] = w;
2485	}	2740	}
		2741
		2742	EV_FREQUENT_CHECK;
2486	}	2743	}
2487		2744
2488	void	2745	void
2489	ev_idle_stop (EV_P_ ev_idle *w)	2746	ev_idle_stop (EV_P_ ev_idle *w)
2490	{	2747	{
2491	clear_pending (EV_A_ (W)w);	2748	clear_pending (EV_A_ (W)w);
2492	if (expect_false (!ev_is_active (w)))	2749	if (expect_false (!ev_is_active (w)))
2493	return;	2750	return;
2494		2751
		2752	EV_FREQUENT_CHECK;
		2753
2495	{	2754	{
2496	int active = ev_active (w);	2755	int active = ev_active (w);
2497		2756
2498	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2757	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2499	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2758	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2500		2759
2501	ev_stop (EV_A_ (W)w);	2760	ev_stop (EV_A_ (W)w);
2502	--idleall;	2761	--idleall;
2503	}	2762	}
		2763
		2764	EV_FREQUENT_CHECK;
2504	}	2765	}
2505	#endif	2766	#endif
2506		2767
2507	void	2768	void
2508	ev_prepare_start (EV_P_ ev_prepare *w)	2769	ev_prepare_start (EV_P_ ev_prepare *w)
2509	{	2770	{
2510	if (expect_false (ev_is_active (w)))	2771	if (expect_false (ev_is_active (w)))
2511	return;	2772	return;
		2773
		2774	EV_FREQUENT_CHECK;
2512		2775
2513	ev_start (EV_A_ (W)w, ++preparecnt);	2776	ev_start (EV_A_ (W)w, ++preparecnt);
2514	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2777	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2515	prepares [preparecnt - 1] = w;	2778	prepares [preparecnt - 1] = w;
		2779
		2780	EV_FREQUENT_CHECK;
2516	}	2781	}
2517		2782
2518	void	2783	void
2519	ev_prepare_stop (EV_P_ ev_prepare *w)	2784	ev_prepare_stop (EV_P_ ev_prepare *w)
2520	{	2785	{
2521	clear_pending (EV_A_ (W)w);	2786	clear_pending (EV_A_ (W)w);
2522	if (expect_false (!ev_is_active (w)))	2787	if (expect_false (!ev_is_active (w)))
2523	return;	2788	return;
2524		2789
		2790	EV_FREQUENT_CHECK;
		2791
2525	{	2792	{
2526	int active = ev_active (w);	2793	int active = ev_active (w);
2527		2794
2528	prepares [active - 1] = prepares [--preparecnt];	2795	prepares [active - 1] = prepares [--preparecnt];
2529	ev_active (prepares [active - 1]) = active;	2796	ev_active (prepares [active - 1]) = active;
2530	}	2797	}
2531		2798
2532	ev_stop (EV_A_ (W)w);	2799	ev_stop (EV_A_ (W)w);
		2800
		2801	EV_FREQUENT_CHECK;
2533	}	2802	}
2534		2803
2535	void	2804	void
2536	ev_check_start (EV_P_ ev_check *w)	2805	ev_check_start (EV_P_ ev_check *w)
2537	{	2806	{
2538	if (expect_false (ev_is_active (w)))	2807	if (expect_false (ev_is_active (w)))
2539	return;	2808	return;
		2809
		2810	EV_FREQUENT_CHECK;
2540		2811
2541	ev_start (EV_A_ (W)w, ++checkcnt);	2812	ev_start (EV_A_ (W)w, ++checkcnt);
2542	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2813	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2543	checks [checkcnt - 1] = w;	2814	checks [checkcnt - 1] = w;
		2815
		2816	EV_FREQUENT_CHECK;
2544	}	2817	}
2545		2818
2546	void	2819	void
2547	ev_check_stop (EV_P_ ev_check *w)	2820	ev_check_stop (EV_P_ ev_check *w)
2548	{	2821	{
2549	clear_pending (EV_A_ (W)w);	2822	clear_pending (EV_A_ (W)w);
2550	if (expect_false (!ev_is_active (w)))	2823	if (expect_false (!ev_is_active (w)))
2551	return;	2824	return;
2552		2825
		2826	EV_FREQUENT_CHECK;
		2827
2553	{	2828	{
2554	int active = ev_active (w);	2829	int active = ev_active (w);
2555		2830
2556	checks [active - 1] = checks [--checkcnt];	2831	checks [active - 1] = checks [--checkcnt];
2557	ev_active (checks [active - 1]) = active;	2832	ev_active (checks [active - 1]) = active;
2558	}	2833	}
2559		2834
2560	ev_stop (EV_A_ (W)w);	2835	ev_stop (EV_A_ (W)w);
		2836
		2837	EV_FREQUENT_CHECK;
2561	}	2838	}
2562		2839
2563	#if EV_EMBED_ENABLE	2840	#if EV_EMBED_ENABLE
2564	void noinline	2841	void noinline
2565	ev_embed_sweep (EV_P_ ev_embed *w)	2842	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2592	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2869	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2593	}	2870	}
2594	}	2871	}
2595	}	2872	}
2596		2873
		2874	static void
		2875	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2876	{
		2877	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		2878
		2879	{
		2880	struct ev_loop *loop = w->other;
		2881
		2882	ev_loop_fork (EV_A);
		2883	}
		2884	}
		2885
2597	#if 0	2886	#if 0
2598	static void	2887	static void
2599	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2888	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2600	{	2889	{
2601	ev_idle_stop (EV_A_ idle);	2890	ev_idle_stop (EV_A_ idle);
…		…
2612	struct ev_loop *loop = w->other;	2901	struct ev_loop *loop = w->other;
2613	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2902	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2614	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2903	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2615	}	2904	}
2616		2905
		2906	EV_FREQUENT_CHECK;
		2907
2617	ev_set_priority (&w->io, ev_priority (w));	2908	ev_set_priority (&w->io, ev_priority (w));
2618	ev_io_start (EV_A_ &w->io);	2909	ev_io_start (EV_A_ &w->io);
2619		2910
2620	ev_prepare_init (&w->prepare, embed_prepare_cb);	2911	ev_prepare_init (&w->prepare, embed_prepare_cb);
2621	ev_set_priority (&w->prepare, EV_MINPRI);	2912	ev_set_priority (&w->prepare, EV_MINPRI);
2622	ev_prepare_start (EV_A_ &w->prepare);	2913	ev_prepare_start (EV_A_ &w->prepare);
2623		2914
		2915	ev_fork_init (&w->fork, embed_fork_cb);
		2916	ev_fork_start (EV_A_ &w->fork);
		2917
2624	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	2918	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2625		2919
2626	ev_start (EV_A_ (W)w, 1);	2920	ev_start (EV_A_ (W)w, 1);
		2921
		2922	EV_FREQUENT_CHECK;
2627	}	2923	}
2628		2924
2629	void	2925	void
2630	ev_embed_stop (EV_P_ ev_embed *w)	2926	ev_embed_stop (EV_P_ ev_embed *w)
2631	{	2927	{
2632	clear_pending (EV_A_ (W)w);	2928	clear_pending (EV_A_ (W)w);
2633	if (expect_false (!ev_is_active (w)))	2929	if (expect_false (!ev_is_active (w)))
2634	return;	2930	return;
2635		2931
		2932	EV_FREQUENT_CHECK;
		2933
2636	ev_io_stop (EV_A_ &w->io);	2934	ev_io_stop (EV_A_ &w->io);
2637	ev_prepare_stop (EV_A_ &w->prepare);	2935	ev_prepare_stop (EV_A_ &w->prepare);
		2936	ev_fork_stop (EV_A_ &w->fork);
2638		2937
2639	ev_stop (EV_A_ (W)w);	2938	EV_FREQUENT_CHECK;
2640	}	2939	}
2641	#endif	2940	#endif
2642		2941
2643	#if EV_FORK_ENABLE	2942	#if EV_FORK_ENABLE
2644	void	2943	void
2645	ev_fork_start (EV_P_ ev_fork *w)	2944	ev_fork_start (EV_P_ ev_fork *w)
2646	{	2945	{
2647	if (expect_false (ev_is_active (w)))	2946	if (expect_false (ev_is_active (w)))
2648	return;	2947	return;
		2948
		2949	EV_FREQUENT_CHECK;
2649		2950
2650	ev_start (EV_A_ (W)w, ++forkcnt);	2951	ev_start (EV_A_ (W)w, ++forkcnt);
2651	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2952	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2652	forks [forkcnt - 1] = w;	2953	forks [forkcnt - 1] = w;
		2954
		2955	EV_FREQUENT_CHECK;
2653	}	2956	}
2654		2957
2655	void	2958	void
2656	ev_fork_stop (EV_P_ ev_fork *w)	2959	ev_fork_stop (EV_P_ ev_fork *w)
2657	{	2960	{
2658	clear_pending (EV_A_ (W)w);	2961	clear_pending (EV_A_ (W)w);
2659	if (expect_false (!ev_is_active (w)))	2962	if (expect_false (!ev_is_active (w)))
2660	return;	2963	return;
2661		2964
		2965	EV_FREQUENT_CHECK;
		2966
2662	{	2967	{
2663	int active = ev_active (w);	2968	int active = ev_active (w);
2664		2969
2665	forks [active - 1] = forks [--forkcnt];	2970	forks [active - 1] = forks [--forkcnt];
2666	ev_active (forks [active - 1]) = active;	2971	ev_active (forks [active - 1]) = active;
2667	}	2972	}
2668		2973
2669	ev_stop (EV_A_ (W)w);	2974	ev_stop (EV_A_ (W)w);
		2975
		2976	EV_FREQUENT_CHECK;
2670	}	2977	}
2671	#endif	2978	#endif
2672		2979
2673	#if EV_ASYNC_ENABLE	2980	#if EV_ASYNC_ENABLE
2674	void	2981	void
…		…
2676	{	2983	{
2677	if (expect_false (ev_is_active (w)))	2984	if (expect_false (ev_is_active (w)))
2678	return;	2985	return;
2679		2986
2680	evpipe_init (EV_A);	2987	evpipe_init (EV_A);
		2988
		2989	EV_FREQUENT_CHECK;
2681		2990
2682	ev_start (EV_A_ (W)w, ++asynccnt);	2991	ev_start (EV_A_ (W)w, ++asynccnt);
2683	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	2992	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2684	asyncs [asynccnt - 1] = w;	2993	asyncs [asynccnt - 1] = w;
		2994
		2995	EV_FREQUENT_CHECK;
2685	}	2996	}
2686		2997
2687	void	2998	void
2688	ev_async_stop (EV_P_ ev_async *w)	2999	ev_async_stop (EV_P_ ev_async *w)
2689	{	3000	{
2690	clear_pending (EV_A_ (W)w);	3001	clear_pending (EV_A_ (W)w);
2691	if (expect_false (!ev_is_active (w)))	3002	if (expect_false (!ev_is_active (w)))
2692	return;	3003	return;
2693		3004
		3005	EV_FREQUENT_CHECK;
		3006
2694	{	3007	{
2695	int active = ev_active (w);	3008	int active = ev_active (w);
2696		3009
2697	asyncs [active - 1] = asyncs [--asynccnt];	3010	asyncs [active - 1] = asyncs [--asynccnt];
2698	ev_active (asyncs [active - 1]) = active;	3011	ev_active (asyncs [active - 1]) = active;
2699	}	3012	}
2700		3013
2701	ev_stop (EV_A_ (W)w);	3014	ev_stop (EV_A_ (W)w);
		3015
		3016	EV_FREQUENT_CHECK;
2702	}	3017	}
2703		3018
2704	void	3019	void
2705	ev_async_send (EV_P_ ev_async *w)	3020	ev_async_send (EV_P_ ev_async *w)
2706	{	3021	{
…		…
2723	once_cb (EV_P_ struct ev_once *once, int revents)	3038	once_cb (EV_P_ struct ev_once *once, int revents)
2724	{	3039	{
2725	void (*cb)(int revents, void *arg) = once->cb;	3040	void (*cb)(int revents, void *arg) = once->cb;
2726	void *arg = once->arg;	3041	void *arg = once->arg;
2727		3042
2728	ev_io_stop (EV_A_ &once->io);	3043	ev_io_stop (EV_A_ &once->io);
2729	ev_timer_stop (EV_A_ &once->to);	3044	ev_timer_stop (EV_A_ &once->to);
2730	ev_free (once);	3045	ev_free (once);
2731		3046
2732	cb (revents, arg);	3047	cb (revents, arg);
2733	}	3048	}
2734		3049
2735	static void	3050	static void
2736	once_cb_io (EV_P_ ev_io *w, int revents)	3051	once_cb_io (EV_P_ ev_io *w, int revents)
2737	{	3052	{
2738	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3053	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3054
		3055	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2739	}	3056	}
2740		3057
2741	static void	3058	static void
2742	once_cb_to (EV_P_ ev_timer *w, int revents)	3059	once_cb_to (EV_P_ ev_timer *w, int revents)
2743	{	3060	{
2744	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3061	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3062
		3063	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2745	}	3064	}
2746		3065
2747	void	3066	void
2748	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3067	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2749	{	3068	{

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