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Comparing libev/ev.c (file contents):
Revision 1.245 by root, Wed May 21 00:26:01 2008 UTC vs.
Revision 1.274 by root, Thu Nov 20 00:35:10 2008 UTC

…		…
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# endif
		63
52	# if HAVE_CLOCK_GETTIME	64	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	65	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	66	# define EV_USE_MONOTONIC 1
55	# endif	67	# endif
56	# ifndef EV_USE_REALTIME	68	# ifndef EV_USE_REALTIME
…		…
126	# define EV_USE_EVENTFD 1	138	# define EV_USE_EVENTFD 1
127	# else	139	# else
128	# define EV_USE_EVENTFD 0	140	# define EV_USE_EVENTFD 0
129	# endif	141	# endif
130	# endif	142	# endif
131		143
132	#endif	144	#endif
133		145
134	#include <math.h>	146	#include <math.h>
135	#include <stdlib.h>	147	#include <stdlib.h>
136	#include <fcntl.h>	148	#include <fcntl.h>
…		…
154	#ifndef _WIN32	166	#ifndef _WIN32
155	# include <sys/time.h>	167	# include <sys/time.h>
156	# include <sys/wait.h>	168	# include <sys/wait.h>
157	# include <unistd.h>	169	# include <unistd.h>
158	#else	170	#else
		171	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	172	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	173	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	174	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	175	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	176	# endif
164	#endif	177	#endif
165		178
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	179	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		180
		181	#ifndef EV_USE_CLOCK_SYSCALL
		182	# if __linux && __GLIBC__ >= 2
		183	# define EV_USE_CLOCK_SYSCALL 1
		184	# else
		185	# define EV_USE_CLOCK_SYSCALL 0
		186	# endif
		187	#endif
		188
168	#ifndef EV_USE_MONOTONIC	189	#ifndef EV_USE_MONOTONIC
		190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		191	# define EV_USE_MONOTONIC 1
		192	# else
169	# define EV_USE_MONOTONIC 0	193	# define EV_USE_MONOTONIC 0
		194	# endif
170	#endif	195	#endif
171		196
172	#ifndef EV_USE_REALTIME	197	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	198	# define EV_USE_REALTIME 0
174	#endif	199	#endif
175		200
176	#ifndef EV_USE_NANOSLEEP	201	#ifndef EV_USE_NANOSLEEP
		202	# if _POSIX_C_SOURCE >= 199309L
		203	# define EV_USE_NANOSLEEP 1
		204	# else
177	# define EV_USE_NANOSLEEP 0	205	# define EV_USE_NANOSLEEP 0
		206	# endif
178	#endif	207	#endif
179		208
180	#ifndef EV_USE_SELECT	209	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	210	# define EV_USE_SELECT 1
182	#endif	211	#endif
…		…
235	# else	264	# else
236	# define EV_USE_EVENTFD 0	265	# define EV_USE_EVENTFD 0
237	# endif	266	# endif
238	#endif	267	#endif
239		268
		269	#if 0 /* debugging */
		270	# define EV_VERIFY 3
		271	# define EV_USE_4HEAP 1
		272	# define EV_HEAP_CACHE_AT 1
		273	#endif
		274
		275	#ifndef EV_VERIFY
		276	# define EV_VERIFY !EV_MINIMAL
		277	#endif
		278
240	#ifndef EV_USE_4HEAP	279	#ifndef EV_USE_4HEAP
241	# define EV_USE_4HEAP !EV_MINIMAL	280	# define EV_USE_4HEAP !EV_MINIMAL
242	#endif	281	#endif
243		282
244	#ifndef EV_HEAP_CACHE_AT	283	#ifndef EV_HEAP_CACHE_AT
…		…
267	# include <sys/select.h>	306	# include <sys/select.h>
268	# endif	307	# endif
269	#endif	308	#endif
270		309
271	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
272	# include <sys/inotify.h>	313	# include <sys/inotify.h>
		314	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		315	# ifndef IN_DONT_FOLLOW
		316	# undef EV_USE_INOTIFY
		317	# define EV_USE_INOTIFY 0
		318	# endif
273	#endif	319	#endif
274		320
275	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
276	# include <winsock.h>	322	# include <winsock.h>
		323	#endif
		324
		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
277	#endif	332	#endif
278		333
279	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
280	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
281	# include <stdint.h>	336	# include <stdint.h>
…		…
287	}	342	}
288	# endif	343	# endif
289	#endif	344	#endif
290		345
291	/**/	346	/**/
		347
		348	#if EV_VERIFY >= 3
		349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		350	#else
		351	# define EV_FREQUENT_CHECK do { } while (0)
		352	#endif
292		353
293	/*	354	/*
294	* This is used to avoid floating point rounding problems.	355	* This is used to avoid floating point rounding problems.
295	* It is added to ev_rt_now when scheduling periodics	356	* It is added to ev_rt_now when scheduling periodics
296	* to ensure progress, time-wise, even when rounding	357	* to ensure progress, time-wise, even when rounding
…		…
357	{	418	{
358	syserr_cb = cb;	419	syserr_cb = cb;
359	}	420	}
360		421
361	static void noinline	422	static void noinline
362	syserr (const char *msg)	423	ev_syserr (const char *msg)
363	{	424	{
364	if (!msg)	425	if (!msg)
365	msg = "(libev) system error";	426	msg = "(libev) system error";
366		427
367	if (syserr_cb)	428	if (syserr_cb)
…		…
418	typedef struct	479	typedef struct
419	{	480	{
420	WL head;	481	WL head;
421	unsigned char events;	482	unsigned char events;
422	unsigned char reify;	483	unsigned char reify;
		484	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
		485	unsigned char unused;
		486	#if EV_USE_EPOLL
		487	unsigned int egen; /* generation counter to counter epoll bugs */
		488	#endif
423	#if EV_SELECT_IS_WINSOCKET	489	#if EV_SELECT_IS_WINSOCKET
424	SOCKET handle;	490	SOCKET handle;
425	#endif	491	#endif
426	} ANFD;	492	} ANFD;
427		493
…		…
444	typedef struct {	510	typedef struct {
445	ev_tstamp at;	511	ev_tstamp at;
446	WT w;	512	WT w;
447	} ANHE;	513	} ANHE;
448		514
449	#define ANHE_w(he) (he).w /* access watcher, read-write */	515	#define ANHE_w(he) (he).w /* access watcher, read-write */
450	#define ANHE_at(he) (he).at /* access cached at, read-only */	516	#define ANHE_at(he) (he).at /* access cached at, read-only */
451	#define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */	517	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
452	#else	518	#else
453	typedef WT ANHE;	519	typedef WT ANHE;
454		520
455	#define ANHE_w(he) (he)	521	#define ANHE_w(he) (he)
456	#define ANHE_at(he) (he)->at	522	#define ANHE_at(he) (he)->at
457	#define ANHE_at_set(he)	523	#define ANHE_at_cache(he)
458	#endif	524	#endif
459		525
460	#if EV_MULTIPLICITY	526	#if EV_MULTIPLICITY
461		527
462	struct ev_loop	528	struct ev_loop
…		…
540	struct timeval tv;	606	struct timeval tv;
541		607
542	tv.tv_sec = (time_t)delay;	608	tv.tv_sec = (time_t)delay;
543	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	609	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
544		610
		611	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		612	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		613	/* by older ones */
545	select (0, 0, 0, 0, &tv);	614	select (0, 0, 0, 0, &tv);
546	#endif	615	#endif
547	}	616	}
548	}	617	}
549		618
…		…
576	array_realloc (int elem, void *base, int *cur, int cnt)	645	array_realloc (int elem, void *base, int *cur, int cnt)
577	{	646	{
578	*cur = array_nextsize (elem, *cur, cnt);	647	*cur = array_nextsize (elem, *cur, cnt);
579	return ev_realloc (base, elem * *cur);	648	return ev_realloc (base, elem * *cur);
580	}	649	}
		650
		651	#define array_init_zero(base,count) \
		652	memset ((void *)(base), 0, sizeof (*(base)) * (count))
581		653
582	#define array_needsize(type,base,cur,cnt,init) \	654	#define array_needsize(type,base,cur,cnt,init) \
583	if (expect_false ((cnt) > (cur))) \	655	if (expect_false ((cnt) > (cur))) \
584	{ \	656	{ \
585	int ocur_ = (cur); \	657	int ocur_ = (cur); \
…		…
629	ev_feed_event (EV_A_ events [i], type);	701	ev_feed_event (EV_A_ events [i], type);
630	}	702	}
631		703
632	/*****************************************************************************/	704	/*****************************************************************************/
633		705
634	void inline_size
635	anfds_init (ANFD *base, int count)
636	{
637	while (count--)
638	{
639	base->head = 0;
640	base->events = EV_NONE;
641	base->reify = 0;
642
643	++base;
644	}
645	}
646
647	void inline_speed	706	void inline_speed
648	fd_event (EV_P_ int fd, int revents)	707	fd_event (EV_P_ int fd, int revents)
649	{	708	{
650	ANFD *anfd = anfds + fd;	709	ANFD *anfd = anfds + fd;
651	ev_io *w;	710	ev_io *w;
…		…
683	events |= (unsigned char)w->events;	742	events |= (unsigned char)w->events;
684		743
685	#if EV_SELECT_IS_WINSOCKET	744	#if EV_SELECT_IS_WINSOCKET
686	if (events)	745	if (events)
687	{	746	{
688	unsigned long argp;	747	unsigned long arg;
689	#ifdef EV_FD_TO_WIN32_HANDLE	748	#ifdef EV_FD_TO_WIN32_HANDLE
690	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	749	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
691	#else	750	#else
692	anfd->handle = _get_osfhandle (fd);	751	anfd->handle = _get_osfhandle (fd);
693	#endif	752	#endif
694	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	753	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
695	}	754	}
696	#endif	755	#endif
697		756
698	{	757	{
699	unsigned char o_events = anfd->events;	758	unsigned char o_events = anfd->events;
…		…
752	{	811	{
753	int fd;	812	int fd;
754		813
755	for (fd = 0; fd < anfdmax; ++fd)	814	for (fd = 0; fd < anfdmax; ++fd)
756	if (anfds [fd].events)	815	if (anfds [fd].events)
757	if (!fd_valid (fd) == -1 && errno == EBADF)	816	if (!fd_valid (fd) && errno == EBADF)
758	fd_kill (EV_A_ fd);	817	fd_kill (EV_A_ fd);
759	}	818	}
760		819
761	/* called on ENOMEM in select/poll to kill some fds and retry */	820	/* called on ENOMEM in select/poll to kill some fds and retry */
762	static void noinline	821	static void noinline
…		…
780		839
781	for (fd = 0; fd < anfdmax; ++fd)	840	for (fd = 0; fd < anfdmax; ++fd)
782	if (anfds [fd].events)	841	if (anfds [fd].events)
783	{	842	{
784	anfds [fd].events = 0;	843	anfds [fd].events = 0;
		844	anfds [fd].emask = 0;
785	fd_change (EV_A_ fd, EV_IOFDSET | 1);	845	fd_change (EV_A_ fd, EV_IOFDSET | 1);
786	}	846	}
787	}	847	}
788		848
789	/*****************************************************************************/	849	/*****************************************************************************/
…		…
802	*/	862	*/
803	#if EV_USE_4HEAP	863	#if EV_USE_4HEAP
804		864
805	#define DHEAP 4	865	#define DHEAP 4
806	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	866	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
807		867	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
808	/* towards the root */	868	#define UPHEAP_DONE(p,k) ((p) == (k))
809	void inline_speed
810	upheap (ANHE *heap, int k)
811	{
812	ANHE he = heap [k];
813
814	for (;;)
815	{
816	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
817
818	if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
819	break;
820
821	heap [k] = heap [p];
822	ev_active (ANHE_w (heap [k])) = k;
823	k = p;
824	}
825
826	ev_active (ANHE_w (he)) = k;
827	heap [k] = he;
828	}
829		869
830	/* away from the root */	870	/* away from the root */
831	void inline_speed	871	void inline_speed
832	downheap (ANHE *heap, int N, int k)	872	downheap (ANHE *heap, int N, int k)
833	{	873	{
…		…
836		876
837	for (;;)	877	for (;;)
838	{	878	{
839	ev_tstamp minat;	879	ev_tstamp minat;
840	ANHE *minpos;	880	ANHE *minpos;
841	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	881	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
842		882
843	// find minimum child	883	/* find minimum child */
844	if (expect_true (pos + DHEAP - 1 < E))	884	if (expect_true (pos + DHEAP - 1 < E))
845	{	885	{
846	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	886	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
847	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	887	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
848	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	888	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
…		…
859	break;	899	break;
860		900
861	if (ANHE_at (he) <= minat)	901	if (ANHE_at (he) <= minat)
862	break;	902	break;
863		903
		904	heap [k] = *minpos;
864	ev_active (ANHE_w (*minpos)) = k;	905	ev_active (ANHE_w (*minpos)) = k;
865	heap [k] = *minpos;
866		906
867	k = minpos - heap;	907	k = minpos - heap;
868	}	908	}
869		909
		910	heap [k] = he;
870	ev_active (ANHE_w (he)) = k;	911	ev_active (ANHE_w (he)) = k;
871	heap [k] = he;
872	}	912	}
873		913
874	#else // 4HEAP	914	#else /* 4HEAP */
875		915
876	#define HEAP0 1	916	#define HEAP0 1
877		917	#define HPARENT(k) ((k) >> 1)
878	/* towards the root */	918	#define UPHEAP_DONE(p,k) (!(p))
879	void inline_speed
880	upheap (ANHE *heap, int k)
881	{
882	ANHE he = heap [k];
883
884	for (;;)
885	{
886	int p = k >> 1;
887
888	/* maybe we could use a dummy element at heap [0]? */
889	if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
890	break;
891
892	heap [k] = heap [p];
893	ev_active (ANHE_w (heap [k])) = k;
894	k = p;
895	}
896
897	heap [k] = he;
898	ev_active (ANHE_w (heap [k])) = k;
899	}
900		919
901	/* away from the root */	920	/* away from the root */
902	void inline_speed	921	void inline_speed
903	downheap (ANHE *heap, int N, int k)	922	downheap (ANHE *heap, int N, int k)
904	{	923	{
…		…
906		925
907	for (;;)	926	for (;;)
908	{	927	{
909	int c = k << 1;	928	int c = k << 1;
910		929
911	if (c > N)	930	if (c > N + HEAP0 - 1)
912	break;	931	break;
913		932
914	c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	933	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
915	? 1 : 0;	934	? 1 : 0;
916		935
917	if (ANHE_at (he) <= ANHE_at (heap [c]))	936	if (ANHE_at (he) <= ANHE_at (heap [c]))
918	break;	937	break;
919		938
…		…
926	heap [k] = he;	945	heap [k] = he;
927	ev_active (ANHE_w (he)) = k;	946	ev_active (ANHE_w (he)) = k;
928	}	947	}
929	#endif	948	#endif
930		949
		950	/* towards the root */
		951	void inline_speed
		952	upheap (ANHE *heap, int k)
		953	{
		954	ANHE he = heap [k];
		955
		956	for (;;)
		957	{
		958	int p = HPARENT (k);
		959
		960	if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
		961	break;
		962
		963	heap [k] = heap [p];
		964	ev_active (ANHE_w (heap [k])) = k;
		965	k = p;
		966	}
		967
		968	heap [k] = he;
		969	ev_active (ANHE_w (he)) = k;
		970	}
		971
931	void inline_size	972	void inline_size
932	adjustheap (ANHE *heap, int N, int k)	973	adjustheap (ANHE *heap, int N, int k)
933	{	974	{
		975	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
934	upheap (heap, k);	976	upheap (heap, k);
		977	else
935	downheap (heap, N, k);	978	downheap (heap, N, k);
		979	}
		980
		981	/* rebuild the heap: this function is used only once and executed rarely */
		982	void inline_size
		983	reheap (ANHE *heap, int N)
		984	{
		985	int i;
		986
		987	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		988	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		989	for (i = 0; i < N; ++i)
		990	upheap (heap, i + HEAP0);
936	}	991	}
937		992
938	/*****************************************************************************/	993	/*****************************************************************************/
939		994
940	typedef struct	995	typedef struct
…		…
946	static ANSIG *signals;	1001	static ANSIG *signals;
947	static int signalmax;	1002	static int signalmax;
948		1003
949	static EV_ATOMIC_T gotsig;	1004	static EV_ATOMIC_T gotsig;
950		1005
951	void inline_size
952	signals_init (ANSIG *base, int count)
953	{
954	while (count--)
955	{
956	base->head = 0;
957	base->gotsig = 0;
958
959	++base;
960	}
961	}
962
963	/*****************************************************************************/	1006	/*****************************************************************************/
964		1007
965	void inline_speed	1008	void inline_speed
966	fd_intern (int fd)	1009	fd_intern (int fd)
967	{	1010	{
968	#ifdef _WIN32	1011	#ifdef _WIN32
969	int arg = 1;	1012	unsigned long arg = 1;
970	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
971	#else	1014	#else
972	fcntl (fd, F_SETFD, FD_CLOEXEC);	1015	fcntl (fd, F_SETFD, FD_CLOEXEC);
973	fcntl (fd, F_SETFL, O_NONBLOCK);	1016	fcntl (fd, F_SETFL, O_NONBLOCK);
974	#endif	1017	#endif
…		…
988	}	1031	}
989	else	1032	else
990	#endif	1033	#endif
991	{	1034	{
992	while (pipe (evpipe))	1035	while (pipe (evpipe))
993	syserr ("(libev) error creating signal/async pipe");	1036	ev_syserr ("(libev) error creating signal/async pipe");
994		1037
995	fd_intern (evpipe [0]);	1038	fd_intern (evpipe [0]);
996	fd_intern (evpipe [1]);	1039	fd_intern (evpipe [1]);
997	ev_io_set (&pipeev, evpipe [0], EV_READ);	1040	ev_io_set (&pipeev, evpipe [0], EV_READ);
998	}	1041	}
…		…
1458		1501
1459	postfork = 0;	1502	postfork = 0;
1460	}	1503	}
1461		1504
1462	#if EV_MULTIPLICITY	1505	#if EV_MULTIPLICITY
		1506
1463	struct ev_loop *	1507	struct ev_loop *
1464	ev_loop_new (unsigned int flags)	1508	ev_loop_new (unsigned int flags)
1465	{	1509	{
1466	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1510	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1467		1511
…		…
1485	void	1529	void
1486	ev_loop_fork (EV_P)	1530	ev_loop_fork (EV_P)
1487	{	1531	{
1488	postfork = 1; /* must be in line with ev_default_fork */	1532	postfork = 1; /* must be in line with ev_default_fork */
1489	}	1533	}
		1534
		1535	#if EV_VERIFY
		1536	static void noinline
		1537	verify_watcher (EV_P_ W w)
		1538	{
		1539	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1540
		1541	if (w->pending)
		1542	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1543	}
		1544
		1545	static void noinline
		1546	verify_heap (EV_P_ ANHE *heap, int N)
		1547	{
		1548	int i;
		1549
		1550	for (i = HEAP0; i < N + HEAP0; ++i)
		1551	{
		1552	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1553	assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1554	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1555
		1556	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1557	}
		1558	}
		1559
		1560	static void noinline
		1561	array_verify (EV_P_ W *ws, int cnt)
		1562	{
		1563	while (cnt--)
		1564	{
		1565	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1566	verify_watcher (EV_A_ ws [cnt]);
		1567	}
		1568	}
		1569	#endif
		1570
		1571	void
		1572	ev_loop_verify (EV_P)
		1573	{
		1574	#if EV_VERIFY
		1575	int i;
		1576	WL w;
		1577
		1578	assert (activecnt >= -1);
		1579
		1580	assert (fdchangemax >= fdchangecnt);
		1581	for (i = 0; i < fdchangecnt; ++i)
		1582	assert (("negative fd in fdchanges", fdchanges [i] >= 0));
		1583
		1584	assert (anfdmax >= 0);
		1585	for (i = 0; i < anfdmax; ++i)
		1586	for (w = anfds [i].head; w; w = w->next)
		1587	{
		1588	verify_watcher (EV_A_ (W)w);
		1589	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
		1590	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1591	}
		1592
		1593	assert (timermax >= timercnt);
		1594	verify_heap (EV_A_ timers, timercnt);
		1595
		1596	#if EV_PERIODIC_ENABLE
		1597	assert (periodicmax >= periodiccnt);
		1598	verify_heap (EV_A_ periodics, periodiccnt);
		1599	#endif
		1600
		1601	for (i = NUMPRI; i--; )
		1602	{
		1603	assert (pendingmax [i] >= pendingcnt [i]);
		1604	#if EV_IDLE_ENABLE
		1605	assert (idleall >= 0);
		1606	assert (idlemax [i] >= idlecnt [i]);
		1607	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1608	#endif
		1609	}
		1610
		1611	#if EV_FORK_ENABLE
		1612	assert (forkmax >= forkcnt);
		1613	array_verify (EV_A_ (W *)forks, forkcnt);
		1614	#endif
		1615
		1616	#if EV_ASYNC_ENABLE
		1617	assert (asyncmax >= asynccnt);
		1618	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1619	#endif
		1620
		1621	assert (preparemax >= preparecnt);
		1622	array_verify (EV_A_ (W *)prepares, preparecnt);
		1623
		1624	assert (checkmax >= checkcnt);
		1625	array_verify (EV_A_ (W *)checks, checkcnt);
		1626
		1627	# if 0
		1628	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1629	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1490	#endif	1630	# endif
		1631	#endif
		1632	}
		1633
		1634	#endif /* multiplicity */
1491		1635
1492	#if EV_MULTIPLICITY	1636	#if EV_MULTIPLICITY
1493	struct ev_loop *	1637	struct ev_loop *
1494	ev_default_loop_init (unsigned int flags)	1638	ev_default_loop_init (unsigned int flags)
1495	#else	1639	#else
…		…
1528	{	1672	{
1529	#if EV_MULTIPLICITY	1673	#if EV_MULTIPLICITY
1530	struct ev_loop *loop = ev_default_loop_ptr;	1674	struct ev_loop *loop = ev_default_loop_ptr;
1531	#endif	1675	#endif
1532		1676
		1677	ev_default_loop_ptr = 0;
		1678
1533	#ifndef _WIN32	1679	#ifndef _WIN32
1534	ev_ref (EV_A); /* child watcher */	1680	ev_ref (EV_A); /* child watcher */
1535	ev_signal_stop (EV_A_ &childev);	1681	ev_signal_stop (EV_A_ &childev);
1536	#endif	1682	#endif
1537		1683
…		…
1543	{	1689	{
1544	#if EV_MULTIPLICITY	1690	#if EV_MULTIPLICITY
1545	struct ev_loop *loop = ev_default_loop_ptr;	1691	struct ev_loop *loop = ev_default_loop_ptr;
1546	#endif	1692	#endif
1547		1693
1548	if (backend)
1549	postfork = 1; /* must be in line with ev_loop_fork */	1694	postfork = 1; /* must be in line with ev_loop_fork */
1550	}	1695	}
1551		1696
1552	/*****************************************************************************/	1697	/*****************************************************************************/
1553		1698
1554	void	1699	void
…		…
1571	{	1716	{
1572	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1717	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1573		1718
1574	p->w->pending = 0;	1719	p->w->pending = 0;
1575	EV_CB_INVOKE (p->w, p->events);	1720	EV_CB_INVOKE (p->w, p->events);
		1721	EV_FREQUENT_CHECK;
1576	}	1722	}
1577	}	1723	}
1578	}	1724	}
1579		1725
1580	#if EV_IDLE_ENABLE	1726	#if EV_IDLE_ENABLE
…		…
1601	#endif	1747	#endif
1602		1748
1603	void inline_size	1749	void inline_size
1604	timers_reify (EV_P)	1750	timers_reify (EV_P)
1605	{	1751	{
		1752	EV_FREQUENT_CHECK;
		1753
1606	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1754	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1607	{	1755	{
1608	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1756	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1609		1757
1610	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1758	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
…		…
1616	if (ev_at (w) < mn_now)	1764	if (ev_at (w) < mn_now)
1617	ev_at (w) = mn_now;	1765	ev_at (w) = mn_now;
1618		1766
1619	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1767	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1620		1768
1621	ANHE_at_set (timers [HEAP0]);	1769	ANHE_at_cache (timers [HEAP0]);
1622	downheap (timers, timercnt, HEAP0);	1770	downheap (timers, timercnt, HEAP0);
1623	}	1771	}
1624	else	1772	else
1625	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1773	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1626		1774
		1775	EV_FREQUENT_CHECK;
1627	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1776	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1628	}	1777	}
1629	}	1778	}
1630		1779
1631	#if EV_PERIODIC_ENABLE	1780	#if EV_PERIODIC_ENABLE
1632	void inline_size	1781	void inline_size
1633	periodics_reify (EV_P)	1782	periodics_reify (EV_P)
1634	{	1783	{
		1784	EV_FREQUENT_CHECK;
		1785
1635	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1786	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1636	{	1787	{
1637	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1788	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1638		1789
1639	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1790	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
1643	{	1794	{
1644	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1795	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1645		1796
1646	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1797	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1647		1798
1648	ANHE_at_set (periodics [HEAP0]);	1799	ANHE_at_cache (periodics [HEAP0]);
1649	downheap (periodics, periodiccnt, HEAP0);	1800	downheap (periodics, periodiccnt, HEAP0);
1650	}	1801	}
1651	else if (w->interval)	1802	else if (w->interval)
1652	{	1803	{
1653	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1804	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1805	/* if next trigger time is not sufficiently in the future, put it there */
		1806	/* this might happen because of floating point inexactness */
1654	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;	1807	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1808	{
		1809	ev_at (w) += w->interval;
1655		1810
1656	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) >= ev_rt_now));	1811	/* if interval is unreasonably low we might still have a time in the past */
		1812	/* so correct this. this will make the periodic very inexact, but the user */
		1813	/* has effectively asked to get triggered more often than possible */
		1814	if (ev_at (w) < ev_rt_now)
		1815	ev_at (w) = ev_rt_now;
		1816	}
1657		1817
1658	ANHE_at_set (periodics [HEAP0]);	1818	ANHE_at_cache (periodics [HEAP0]);
1659	downheap (periodics, periodiccnt, HEAP0);	1819	downheap (periodics, periodiccnt, HEAP0);
1660	}	1820	}
1661	else	1821	else
1662	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1822	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1663		1823
		1824	EV_FREQUENT_CHECK;
1664	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1825	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1665	}	1826	}
1666	}	1827	}
1667		1828
1668	static void noinline	1829	static void noinline
…		…
1678	if (w->reschedule_cb)	1839	if (w->reschedule_cb)
1679	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1840	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1680	else if (w->interval)	1841	else if (w->interval)
1681	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1842	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1682		1843
1683	ANHE_at_set (periodics [i]);	1844	ANHE_at_cache (periodics [i]);
1684	}	1845	}
1685		1846
1686	/* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */	1847	reheap (periodics, periodiccnt);
1687	/* also, this is easy and corretc for both 2-heaps and 4-heaps */
1688	for (i = 0; i < periodiccnt; ++i)
1689	upheap (periodics, i + HEAP0);
1690	}	1848	}
1691	#endif	1849	#endif
1692		1850
1693	void inline_speed	1851	void inline_speed
1694	time_update (EV_P_ ev_tstamp max_block)	1852	time_update (EV_P_ ev_tstamp max_block)
…		…
1752	/* adjust timers. this is easy, as the offset is the same for all of them */	1910	/* adjust timers. this is easy, as the offset is the same for all of them */
1753	for (i = 0; i < timercnt; ++i)	1911	for (i = 0; i < timercnt; ++i)
1754	{	1912	{
1755	ANHE *he = timers + i + HEAP0;	1913	ANHE *he = timers + i + HEAP0;
1756	ANHE_w (*he)->at += ev_rt_now - mn_now;	1914	ANHE_w (*he)->at += ev_rt_now - mn_now;
1757	ANHE_at_set (*he);	1915	ANHE_at_cache (*he);
1758	}	1916	}
1759	}	1917	}
1760		1918
1761	mn_now = ev_rt_now;	1919	mn_now = ev_rt_now;
1762	}	1920	}
…		…
1772	ev_unref (EV_P)	1930	ev_unref (EV_P)
1773	{	1931	{
1774	--activecnt;	1932	--activecnt;
1775	}	1933	}
1776		1934
		1935	void
		1936	ev_now_update (EV_P)
		1937	{
		1938	time_update (EV_A_ 1e100);
		1939	}
		1940
1777	static int loop_done;	1941	static int loop_done;
1778		1942
1779	void	1943	void
1780	ev_loop (EV_P_ int flags)	1944	ev_loop (EV_P_ int flags)
1781	{	1945	{
…		…
1783		1947
1784	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1948	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1785		1949
1786	do	1950	do
1787	{	1951	{
		1952	#if EV_VERIFY >= 2
		1953	ev_loop_verify (EV_A);
		1954	#endif
		1955
1788	#ifndef _WIN32	1956	#ifndef _WIN32
1789	if (expect_false (curpid)) /* penalise the forking check even more */	1957	if (expect_false (curpid)) /* penalise the forking check even more */
1790	if (expect_false (getpid () != curpid))	1958	if (expect_false (getpid () != curpid))
1791	{	1959	{
1792	curpid = getpid ();	1960	curpid = getpid ();
…		…
1986		2154
1987	if (expect_false (ev_is_active (w)))	2155	if (expect_false (ev_is_active (w)))
1988	return;	2156	return;
1989		2157
1990	assert (("ev_io_start called with negative fd", fd >= 0));	2158	assert (("ev_io_start called with negative fd", fd >= 0));
		2159	assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE))));
		2160
		2161	EV_FREQUENT_CHECK;
1991		2162
1992	ev_start (EV_A_ (W)w, 1);	2163	ev_start (EV_A_ (W)w, 1);
1993	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2164	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1994	wlist_add (&anfds[fd].head, (WL)w);	2165	wlist_add (&anfds[fd].head, (WL)w);
1995		2166
1996	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2167	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1997	w->events &= ~EV_IOFDSET;	2168	w->events &= ~EV_IOFDSET;
		2169
		2170	EV_FREQUENT_CHECK;
1998	}	2171	}
1999		2172
2000	void noinline	2173	void noinline
2001	ev_io_stop (EV_P_ ev_io *w)	2174	ev_io_stop (EV_P_ ev_io *w)
2002	{	2175	{
…		…
2004	if (expect_false (!ev_is_active (w)))	2177	if (expect_false (!ev_is_active (w)))
2005	return;	2178	return;
2006		2179
2007	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2180	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2008		2181
		2182	EV_FREQUENT_CHECK;
		2183
2009	wlist_del (&anfds[w->fd].head, (WL)w);	2184	wlist_del (&anfds[w->fd].head, (WL)w);
2010	ev_stop (EV_A_ (W)w);	2185	ev_stop (EV_A_ (W)w);
2011		2186
2012	fd_change (EV_A_ w->fd, 1);	2187	fd_change (EV_A_ w->fd, 1);
		2188
		2189	EV_FREQUENT_CHECK;
2013	}	2190	}
2014		2191
2015	void noinline	2192	void noinline
2016	ev_timer_start (EV_P_ ev_timer *w)	2193	ev_timer_start (EV_P_ ev_timer *w)
2017	{	2194	{
…		…
2020		2197
2021	ev_at (w) += mn_now;	2198	ev_at (w) += mn_now;
2022		2199
2023	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2200	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2024		2201
		2202	EV_FREQUENT_CHECK;
		2203
		2204	++timercnt;
2025	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2205	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2026	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	2206	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2027	ANHE_w (timers [ev_active (w)]) = (WT)w;	2207	ANHE_w (timers [ev_active (w)]) = (WT)w;
2028	ANHE_at_set (timers [ev_active (w)]);	2208	ANHE_at_cache (timers [ev_active (w)]);
2029	upheap (timers, ev_active (w));	2209	upheap (timers, ev_active (w));
		2210
		2211	EV_FREQUENT_CHECK;
2030		2212
2031	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2213	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2032	}	2214	}
2033		2215
2034	void noinline	2216	void noinline
…		…
2036	{	2218	{
2037	clear_pending (EV_A_ (W)w);	2219	clear_pending (EV_A_ (W)w);
2038	if (expect_false (!ev_is_active (w)))	2220	if (expect_false (!ev_is_active (w)))
2039	return;	2221	return;
2040		2222
		2223	EV_FREQUENT_CHECK;
		2224
2041	{	2225	{
2042	int active = ev_active (w);	2226	int active = ev_active (w);
2043		2227
2044	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2228	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2045		2229
		2230	--timercnt;
		2231
2046	if (expect_true (active < timercnt + HEAP0 - 1))	2232	if (expect_true (active < timercnt + HEAP0))
2047	{	2233	{
2048	timers [active] = timers [timercnt + HEAP0 - 1];	2234	timers [active] = timers [timercnt + HEAP0];
2049	adjustheap (timers, timercnt, active);	2235	adjustheap (timers, timercnt, active);
2050	}	2236	}
2051
2052	--timercnt;
2053	}	2237	}
		2238
		2239	EV_FREQUENT_CHECK;
2054		2240
2055	ev_at (w) -= mn_now;	2241	ev_at (w) -= mn_now;
2056		2242
2057	ev_stop (EV_A_ (W)w);	2243	ev_stop (EV_A_ (W)w);
2058	}	2244	}
2059		2245
2060	void noinline	2246	void noinline
2061	ev_timer_again (EV_P_ ev_timer *w)	2247	ev_timer_again (EV_P_ ev_timer *w)
2062	{	2248	{
		2249	EV_FREQUENT_CHECK;
		2250
2063	if (ev_is_active (w))	2251	if (ev_is_active (w))
2064	{	2252	{
2065	if (w->repeat)	2253	if (w->repeat)
2066	{	2254	{
2067	ev_at (w) = mn_now + w->repeat;	2255	ev_at (w) = mn_now + w->repeat;
2068	ANHE_at_set (timers [ev_active (w)]);	2256	ANHE_at_cache (timers [ev_active (w)]);
2069	adjustheap (timers, timercnt, ev_active (w));	2257	adjustheap (timers, timercnt, ev_active (w));
2070	}	2258	}
2071	else	2259	else
2072	ev_timer_stop (EV_A_ w);	2260	ev_timer_stop (EV_A_ w);
2073	}	2261	}
2074	else if (w->repeat)	2262	else if (w->repeat)
2075	{	2263	{
2076	ev_at (w) = w->repeat;	2264	ev_at (w) = w->repeat;
2077	ev_timer_start (EV_A_ w);	2265	ev_timer_start (EV_A_ w);
2078	}	2266	}
		2267
		2268	EV_FREQUENT_CHECK;
2079	}	2269	}
2080		2270
2081	#if EV_PERIODIC_ENABLE	2271	#if EV_PERIODIC_ENABLE
2082	void noinline	2272	void noinline
2083	ev_periodic_start (EV_P_ ev_periodic *w)	2273	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2094	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2284	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2095	}	2285	}
2096	else	2286	else
2097	ev_at (w) = w->offset;	2287	ev_at (w) = w->offset;
2098		2288
		2289	EV_FREQUENT_CHECK;
		2290
		2291	++periodiccnt;
2099	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2292	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2100	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	2293	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2101	ANHE_w (periodics [ev_active (w)]) = (WT)w;	2294	ANHE_w (periodics [ev_active (w)]) = (WT)w;
2102	ANHE_at_set (periodics [ev_active (w)]);	2295	ANHE_at_cache (periodics [ev_active (w)]);
2103	upheap (periodics, ev_active (w));	2296	upheap (periodics, ev_active (w));
		2297
		2298	EV_FREQUENT_CHECK;
2104		2299
2105	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	2300	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2106	}	2301	}
2107		2302
2108	void noinline	2303	void noinline
…		…
2110	{	2305	{
2111	clear_pending (EV_A_ (W)w);	2306	clear_pending (EV_A_ (W)w);
2112	if (expect_false (!ev_is_active (w)))	2307	if (expect_false (!ev_is_active (w)))
2113	return;	2308	return;
2114		2309
		2310	EV_FREQUENT_CHECK;
		2311
2115	{	2312	{
2116	int active = ev_active (w);	2313	int active = ev_active (w);
2117		2314
2118	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2315	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2119		2316
		2317	--periodiccnt;
		2318
2120	if (expect_true (active < periodiccnt + HEAP0 - 1))	2319	if (expect_true (active < periodiccnt + HEAP0))
2121	{	2320	{
2122	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2321	periodics [active] = periodics [periodiccnt + HEAP0];
2123	adjustheap (periodics, periodiccnt, active);	2322	adjustheap (periodics, periodiccnt, active);
2124	}	2323	}
2125
2126	--periodiccnt;
2127	}	2324	}
		2325
		2326	EV_FREQUENT_CHECK;
2128		2327
2129	ev_stop (EV_A_ (W)w);	2328	ev_stop (EV_A_ (W)w);
2130	}	2329	}
2131		2330
2132	void noinline	2331	void noinline
…		…
2152	return;	2351	return;
2153		2352
2154	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2353	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2155		2354
2156	evpipe_init (EV_A);	2355	evpipe_init (EV_A);
		2356
		2357	EV_FREQUENT_CHECK;
2157		2358
2158	{	2359	{
2159	#ifndef _WIN32	2360	#ifndef _WIN32
2160	sigset_t full, prev;	2361	sigset_t full, prev;
2161	sigfillset (&full);	2362	sigfillset (&full);
2162	sigprocmask (SIG_SETMASK, &full, &prev);	2363	sigprocmask (SIG_SETMASK, &full, &prev);
2163	#endif	2364	#endif
2164		2365
2165	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2366	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2166		2367
2167	#ifndef _WIN32	2368	#ifndef _WIN32
2168	sigprocmask (SIG_SETMASK, &prev, 0);	2369	sigprocmask (SIG_SETMASK, &prev, 0);
2169	#endif	2370	#endif
2170	}	2371	}
…		…
2182	sigfillset (&sa.sa_mask);	2383	sigfillset (&sa.sa_mask);
2183	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2384	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2184	sigaction (w->signum, &sa, 0);	2385	sigaction (w->signum, &sa, 0);
2185	#endif	2386	#endif
2186	}	2387	}
		2388
		2389	EV_FREQUENT_CHECK;
2187	}	2390	}
2188		2391
2189	void noinline	2392	void noinline
2190	ev_signal_stop (EV_P_ ev_signal *w)	2393	ev_signal_stop (EV_P_ ev_signal *w)
2191	{	2394	{
2192	clear_pending (EV_A_ (W)w);	2395	clear_pending (EV_A_ (W)w);
2193	if (expect_false (!ev_is_active (w)))	2396	if (expect_false (!ev_is_active (w)))
2194	return;	2397	return;
2195		2398
		2399	EV_FREQUENT_CHECK;
		2400
2196	wlist_del (&signals [w->signum - 1].head, (WL)w);	2401	wlist_del (&signals [w->signum - 1].head, (WL)w);
2197	ev_stop (EV_A_ (W)w);	2402	ev_stop (EV_A_ (W)w);
2198		2403
2199	if (!signals [w->signum - 1].head)	2404	if (!signals [w->signum - 1].head)
2200	signal (w->signum, SIG_DFL);	2405	signal (w->signum, SIG_DFL);
		2406
		2407	EV_FREQUENT_CHECK;
2201	}	2408	}
2202		2409
2203	void	2410	void
2204	ev_child_start (EV_P_ ev_child *w)	2411	ev_child_start (EV_P_ ev_child *w)
2205	{	2412	{
…		…
2207	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2414	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2208	#endif	2415	#endif
2209	if (expect_false (ev_is_active (w)))	2416	if (expect_false (ev_is_active (w)))
2210	return;	2417	return;
2211		2418
		2419	EV_FREQUENT_CHECK;
		2420
2212	ev_start (EV_A_ (W)w, 1);	2421	ev_start (EV_A_ (W)w, 1);
2213	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2422	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2423
		2424	EV_FREQUENT_CHECK;
2214	}	2425	}
2215		2426
2216	void	2427	void
2217	ev_child_stop (EV_P_ ev_child *w)	2428	ev_child_stop (EV_P_ ev_child *w)
2218	{	2429	{
2219	clear_pending (EV_A_ (W)w);	2430	clear_pending (EV_A_ (W)w);
2220	if (expect_false (!ev_is_active (w)))	2431	if (expect_false (!ev_is_active (w)))
2221	return;	2432	return;
2222		2433
		2434	EV_FREQUENT_CHECK;
		2435
2223	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2436	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2224	ev_stop (EV_A_ (W)w);	2437	ev_stop (EV_A_ (W)w);
		2438
		2439	EV_FREQUENT_CHECK;
2225	}	2440	}
2226		2441
2227	#if EV_STAT_ENABLE	2442	#if EV_STAT_ENABLE
2228		2443
2229	# ifdef _WIN32	2444	# ifdef _WIN32
2230	# undef lstat	2445	# undef lstat
2231	# define lstat(a,b) _stati64 (a,b)	2446	# define lstat(a,b) _stati64 (a,b)
2232	# endif	2447	# endif
2233		2448
2234	#define DEF_STAT_INTERVAL 5.0074891	2449	#define DEF_STAT_INTERVAL 5.0074891
		2450	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2235	#define MIN_STAT_INTERVAL 0.1074891	2451	#define MIN_STAT_INTERVAL 0.1074891
2236		2452
2237	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2453	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2238		2454
2239	#if EV_USE_INOTIFY	2455	#if EV_USE_INOTIFY
2240	# define EV_INOTIFY_BUFSIZE 8192	2456	# define EV_INOTIFY_BUFSIZE 8192
…		…
2244	{	2460	{
2245	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);	2461	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);
2246		2462
2247	if (w->wd < 0)	2463	if (w->wd < 0)
2248	{	2464	{
		2465	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2249	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2466	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2250		2467
2251	/* monitor some parent directory for speedup hints */	2468	/* monitor some parent directory for speedup hints */
2252	/* note that exceeding the hardcoded limit is not a correctness issue, */	2469	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2253	/* but an efficiency issue only */	2470	/* but an efficiency issue only */
2254	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2471	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2255	{	2472	{
2256	char path [4096];	2473	char path [4096];
2257	strcpy (path, w->path);	2474	strcpy (path, w->path);
…		…
2271	}	2488	}
2272	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2489	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2273	}	2490	}
2274	}	2491	}
2275	else	2492	else
2276	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */	2493	{
2277
2278	if (w->wd >= 0)
2279	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2494	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2495
		2496	/* now local changes will be tracked by inotify, but remote changes won't */
		2497	/* unless the filesystem it known to be local, we therefore still poll */
		2498	/* also do poll on <2.6.25, but with normal frequency */
		2499	struct statfs sfs;
		2500
		2501	if (fs_2625 && !statfs (w->path, &sfs))
		2502	if (sfs.f_type == 0x1373 /* devfs */
		2503	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2504	|| sfs.f_type == 0x3153464a /* jfs */
		2505	|| sfs.f_type == 0x52654973 /* reiser3 */
		2506	|| sfs.f_type == 0x01021994 /* tempfs */
		2507	|| sfs.f_type == 0x58465342 /* xfs */)
		2508	return;
		2509
		2510	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2511	ev_timer_again (EV_A_ &w->timer);
		2512	}
2280	}	2513	}
2281		2514
2282	static void noinline	2515	static void noinline
2283	infy_del (EV_P_ ev_stat *w)	2516	infy_del (EV_P_ ev_stat *w)
2284	{	2517	{
…		…
2298		2531
2299	static void noinline	2532	static void noinline
2300	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2533	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2301	{	2534	{
2302	if (slot < 0)	2535	if (slot < 0)
2303	/* overflow, need to check for all hahs slots */	2536	/* overflow, need to check for all hash slots */
2304	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2537	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2305	infy_wd (EV_A_ slot, wd, ev);	2538	infy_wd (EV_A_ slot, wd, ev);
2306	else	2539	else
2307	{	2540	{
2308	WL w_;	2541	WL w_;
…		…
2337	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2570	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2338	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2571	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2339	}	2572	}
2340		2573
2341	void inline_size	2574	void inline_size
		2575	check_2625 (EV_P)
		2576	{
		2577	/* kernels < 2.6.25 are borked
		2578	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2579	*/
		2580	struct utsname buf;
		2581	int major, minor, micro;
		2582
		2583	if (uname (&buf))
		2584	return;
		2585
		2586	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2587	return;
		2588
		2589	if (major < 2
		2590	|| (major == 2 && minor < 6)
		2591	|| (major == 2 && minor == 6 && micro < 25))
		2592	return;
		2593
		2594	fs_2625 = 1;
		2595	}
		2596
		2597	void inline_size
2342	infy_init (EV_P)	2598	infy_init (EV_P)
2343	{	2599	{
2344	if (fs_fd != -2)	2600	if (fs_fd != -2)
2345	return;	2601	return;
		2602
		2603	fs_fd = -1;
		2604
		2605	check_2625 (EV_A);
2346		2606
2347	fs_fd = inotify_init ();	2607	fs_fd = inotify_init ();
2348		2608
2349	if (fs_fd >= 0)	2609	if (fs_fd >= 0)
2350	{	2610	{
…		…
2378	w->wd = -1;	2638	w->wd = -1;
2379		2639
2380	if (fs_fd >= 0)	2640	if (fs_fd >= 0)
2381	infy_add (EV_A_ w); /* re-add, no matter what */	2641	infy_add (EV_A_ w); /* re-add, no matter what */
2382	else	2642	else
2383	ev_timer_start (EV_A_ &w->timer);	2643	ev_timer_again (EV_A_ &w->timer);
2384	}	2644	}
2385
2386	}	2645	}
2387	}	2646	}
2388		2647
		2648	#endif
		2649
		2650	#ifdef _WIN32
		2651	# define EV_LSTAT(p,b) _stati64 (p, b)
		2652	#else
		2653	# define EV_LSTAT(p,b) lstat (p, b)
2389	#endif	2654	#endif
2390		2655
2391	void	2656	void
2392	ev_stat_stat (EV_P_ ev_stat *w)	2657	ev_stat_stat (EV_P_ ev_stat *w)
2393	{	2658	{
…		…
2420	|| w->prev.st_atime != w->attr.st_atime	2685	|| w->prev.st_atime != w->attr.st_atime
2421	|| w->prev.st_mtime != w->attr.st_mtime	2686	|| w->prev.st_mtime != w->attr.st_mtime
2422	|| w->prev.st_ctime != w->attr.st_ctime	2687	|| w->prev.st_ctime != w->attr.st_ctime
2423	) {	2688	) {
2424	#if EV_USE_INOTIFY	2689	#if EV_USE_INOTIFY
		2690	if (fs_fd >= 0)
		2691	{
2425	infy_del (EV_A_ w);	2692	infy_del (EV_A_ w);
2426	infy_add (EV_A_ w);	2693	infy_add (EV_A_ w);
2427	ev_stat_stat (EV_A_ w); /* avoid race... */	2694	ev_stat_stat (EV_A_ w); /* avoid race... */
		2695	}
2428	#endif	2696	#endif
2429		2697
2430	ev_feed_event (EV_A_ w, EV_STAT);	2698	ev_feed_event (EV_A_ w, EV_STAT);
2431	}	2699	}
2432	}	2700	}
…		…
2435	ev_stat_start (EV_P_ ev_stat *w)	2703	ev_stat_start (EV_P_ ev_stat *w)
2436	{	2704	{
2437	if (expect_false (ev_is_active (w)))	2705	if (expect_false (ev_is_active (w)))
2438	return;	2706	return;
2439		2707
2440	/* since we use memcmp, we need to clear any padding data etc. */
2441	memset (&w->prev, 0, sizeof (ev_statdata));
2442	memset (&w->attr, 0, sizeof (ev_statdata));
2443
2444	ev_stat_stat (EV_A_ w);	2708	ev_stat_stat (EV_A_ w);
2445		2709
		2710	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2446	if (w->interval < MIN_STAT_INTERVAL)	2711	w->interval = MIN_STAT_INTERVAL;
2447	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2448		2712
2449	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2713	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2450	ev_set_priority (&w->timer, ev_priority (w));	2714	ev_set_priority (&w->timer, ev_priority (w));
2451		2715
2452	#if EV_USE_INOTIFY	2716	#if EV_USE_INOTIFY
2453	infy_init (EV_A);	2717	infy_init (EV_A);
2454		2718
2455	if (fs_fd >= 0)	2719	if (fs_fd >= 0)
2456	infy_add (EV_A_ w);	2720	infy_add (EV_A_ w);
2457	else	2721	else
2458	#endif	2722	#endif
2459	ev_timer_start (EV_A_ &w->timer);	2723	ev_timer_again (EV_A_ &w->timer);
2460		2724
2461	ev_start (EV_A_ (W)w, 1);	2725	ev_start (EV_A_ (W)w, 1);
		2726
		2727	EV_FREQUENT_CHECK;
2462	}	2728	}
2463		2729
2464	void	2730	void
2465	ev_stat_stop (EV_P_ ev_stat *w)	2731	ev_stat_stop (EV_P_ ev_stat *w)
2466	{	2732	{
2467	clear_pending (EV_A_ (W)w);	2733	clear_pending (EV_A_ (W)w);
2468	if (expect_false (!ev_is_active (w)))	2734	if (expect_false (!ev_is_active (w)))
2469	return;	2735	return;
2470		2736
		2737	EV_FREQUENT_CHECK;
		2738
2471	#if EV_USE_INOTIFY	2739	#if EV_USE_INOTIFY
2472	infy_del (EV_A_ w);	2740	infy_del (EV_A_ w);
2473	#endif	2741	#endif
2474	ev_timer_stop (EV_A_ &w->timer);	2742	ev_timer_stop (EV_A_ &w->timer);
2475		2743
2476	ev_stop (EV_A_ (W)w);	2744	ev_stop (EV_A_ (W)w);
		2745
		2746	EV_FREQUENT_CHECK;
2477	}	2747	}
2478	#endif	2748	#endif
2479		2749
2480	#if EV_IDLE_ENABLE	2750	#if EV_IDLE_ENABLE
2481	void	2751	void
…		…
2483	{	2753	{
2484	if (expect_false (ev_is_active (w)))	2754	if (expect_false (ev_is_active (w)))
2485	return;	2755	return;
2486		2756
2487	pri_adjust (EV_A_ (W)w);	2757	pri_adjust (EV_A_ (W)w);
		2758
		2759	EV_FREQUENT_CHECK;
2488		2760
2489	{	2761	{
2490	int active = ++idlecnt [ABSPRI (w)];	2762	int active = ++idlecnt [ABSPRI (w)];
2491		2763
2492	++idleall;	2764	++idleall;
2493	ev_start (EV_A_ (W)w, active);	2765	ev_start (EV_A_ (W)w, active);
2494		2766
2495	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2767	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2496	idles [ABSPRI (w)][active - 1] = w;	2768	idles [ABSPRI (w)][active - 1] = w;
2497	}	2769	}
		2770
		2771	EV_FREQUENT_CHECK;
2498	}	2772	}
2499		2773
2500	void	2774	void
2501	ev_idle_stop (EV_P_ ev_idle *w)	2775	ev_idle_stop (EV_P_ ev_idle *w)
2502	{	2776	{
2503	clear_pending (EV_A_ (W)w);	2777	clear_pending (EV_A_ (W)w);
2504	if (expect_false (!ev_is_active (w)))	2778	if (expect_false (!ev_is_active (w)))
2505	return;	2779	return;
2506		2780
		2781	EV_FREQUENT_CHECK;
		2782
2507	{	2783	{
2508	int active = ev_active (w);	2784	int active = ev_active (w);
2509		2785
2510	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2786	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2511	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2787	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2512		2788
2513	ev_stop (EV_A_ (W)w);	2789	ev_stop (EV_A_ (W)w);
2514	--idleall;	2790	--idleall;
2515	}	2791	}
		2792
		2793	EV_FREQUENT_CHECK;
2516	}	2794	}
2517	#endif	2795	#endif
2518		2796
2519	void	2797	void
2520	ev_prepare_start (EV_P_ ev_prepare *w)	2798	ev_prepare_start (EV_P_ ev_prepare *w)
2521	{	2799	{
2522	if (expect_false (ev_is_active (w)))	2800	if (expect_false (ev_is_active (w)))
2523	return;	2801	return;
		2802
		2803	EV_FREQUENT_CHECK;
2524		2804
2525	ev_start (EV_A_ (W)w, ++preparecnt);	2805	ev_start (EV_A_ (W)w, ++preparecnt);
2526	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2806	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2527	prepares [preparecnt - 1] = w;	2807	prepares [preparecnt - 1] = w;
		2808
		2809	EV_FREQUENT_CHECK;
2528	}	2810	}
2529		2811
2530	void	2812	void
2531	ev_prepare_stop (EV_P_ ev_prepare *w)	2813	ev_prepare_stop (EV_P_ ev_prepare *w)
2532	{	2814	{
2533	clear_pending (EV_A_ (W)w);	2815	clear_pending (EV_A_ (W)w);
2534	if (expect_false (!ev_is_active (w)))	2816	if (expect_false (!ev_is_active (w)))
2535	return;	2817	return;
2536		2818
		2819	EV_FREQUENT_CHECK;
		2820
2537	{	2821	{
2538	int active = ev_active (w);	2822	int active = ev_active (w);
2539		2823
2540	prepares [active - 1] = prepares [--preparecnt];	2824	prepares [active - 1] = prepares [--preparecnt];
2541	ev_active (prepares [active - 1]) = active;	2825	ev_active (prepares [active - 1]) = active;
2542	}	2826	}
2543		2827
2544	ev_stop (EV_A_ (W)w);	2828	ev_stop (EV_A_ (W)w);
		2829
		2830	EV_FREQUENT_CHECK;
2545	}	2831	}
2546		2832
2547	void	2833	void
2548	ev_check_start (EV_P_ ev_check *w)	2834	ev_check_start (EV_P_ ev_check *w)
2549	{	2835	{
2550	if (expect_false (ev_is_active (w)))	2836	if (expect_false (ev_is_active (w)))
2551	return;	2837	return;
		2838
		2839	EV_FREQUENT_CHECK;
2552		2840
2553	ev_start (EV_A_ (W)w, ++checkcnt);	2841	ev_start (EV_A_ (W)w, ++checkcnt);
2554	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2842	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2555	checks [checkcnt - 1] = w;	2843	checks [checkcnt - 1] = w;
		2844
		2845	EV_FREQUENT_CHECK;
2556	}	2846	}
2557		2847
2558	void	2848	void
2559	ev_check_stop (EV_P_ ev_check *w)	2849	ev_check_stop (EV_P_ ev_check *w)
2560	{	2850	{
2561	clear_pending (EV_A_ (W)w);	2851	clear_pending (EV_A_ (W)w);
2562	if (expect_false (!ev_is_active (w)))	2852	if (expect_false (!ev_is_active (w)))
2563	return;	2853	return;
2564		2854
		2855	EV_FREQUENT_CHECK;
		2856
2565	{	2857	{
2566	int active = ev_active (w);	2858	int active = ev_active (w);
2567		2859
2568	checks [active - 1] = checks [--checkcnt];	2860	checks [active - 1] = checks [--checkcnt];
2569	ev_active (checks [active - 1]) = active;	2861	ev_active (checks [active - 1]) = active;
2570	}	2862	}
2571		2863
2572	ev_stop (EV_A_ (W)w);	2864	ev_stop (EV_A_ (W)w);
		2865
		2866	EV_FREQUENT_CHECK;
2573	}	2867	}
2574		2868
2575	#if EV_EMBED_ENABLE	2869	#if EV_EMBED_ENABLE
2576	void noinline	2870	void noinline
2577	ev_embed_sweep (EV_P_ ev_embed *w)	2871	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2604	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2898	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2605	}	2899	}
2606	}	2900	}
2607	}	2901	}
2608		2902
		2903	static void
		2904	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2905	{
		2906	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		2907
		2908	{
		2909	struct ev_loop *loop = w->other;
		2910
		2911	ev_loop_fork (EV_A);
		2912	}
		2913	}
		2914
2609	#if 0	2915	#if 0
2610	static void	2916	static void
2611	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2917	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2612	{	2918	{
2613	ev_idle_stop (EV_A_ idle);	2919	ev_idle_stop (EV_A_ idle);
…		…
2624	struct ev_loop *loop = w->other;	2930	struct ev_loop *loop = w->other;
2625	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2931	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2626	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2932	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2627	}	2933	}
2628		2934
		2935	EV_FREQUENT_CHECK;
		2936
2629	ev_set_priority (&w->io, ev_priority (w));	2937	ev_set_priority (&w->io, ev_priority (w));
2630	ev_io_start (EV_A_ &w->io);	2938	ev_io_start (EV_A_ &w->io);
2631		2939
2632	ev_prepare_init (&w->prepare, embed_prepare_cb);	2940	ev_prepare_init (&w->prepare, embed_prepare_cb);
2633	ev_set_priority (&w->prepare, EV_MINPRI);	2941	ev_set_priority (&w->prepare, EV_MINPRI);
2634	ev_prepare_start (EV_A_ &w->prepare);	2942	ev_prepare_start (EV_A_ &w->prepare);
2635		2943
		2944	ev_fork_init (&w->fork, embed_fork_cb);
		2945	ev_fork_start (EV_A_ &w->fork);
		2946
2636	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	2947	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2637		2948
2638	ev_start (EV_A_ (W)w, 1);	2949	ev_start (EV_A_ (W)w, 1);
		2950
		2951	EV_FREQUENT_CHECK;
2639	}	2952	}
2640		2953
2641	void	2954	void
2642	ev_embed_stop (EV_P_ ev_embed *w)	2955	ev_embed_stop (EV_P_ ev_embed *w)
2643	{	2956	{
2644	clear_pending (EV_A_ (W)w);	2957	clear_pending (EV_A_ (W)w);
2645	if (expect_false (!ev_is_active (w)))	2958	if (expect_false (!ev_is_active (w)))
2646	return;	2959	return;
2647		2960
		2961	EV_FREQUENT_CHECK;
		2962
2648	ev_io_stop (EV_A_ &w->io);	2963	ev_io_stop (EV_A_ &w->io);
2649	ev_prepare_stop (EV_A_ &w->prepare);	2964	ev_prepare_stop (EV_A_ &w->prepare);
		2965	ev_fork_stop (EV_A_ &w->fork);
2650		2966
2651	ev_stop (EV_A_ (W)w);	2967	EV_FREQUENT_CHECK;
2652	}	2968	}
2653	#endif	2969	#endif
2654		2970
2655	#if EV_FORK_ENABLE	2971	#if EV_FORK_ENABLE
2656	void	2972	void
2657	ev_fork_start (EV_P_ ev_fork *w)	2973	ev_fork_start (EV_P_ ev_fork *w)
2658	{	2974	{
2659	if (expect_false (ev_is_active (w)))	2975	if (expect_false (ev_is_active (w)))
2660	return;	2976	return;
		2977
		2978	EV_FREQUENT_CHECK;
2661		2979
2662	ev_start (EV_A_ (W)w, ++forkcnt);	2980	ev_start (EV_A_ (W)w, ++forkcnt);
2663	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2981	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2664	forks [forkcnt - 1] = w;	2982	forks [forkcnt - 1] = w;
		2983
		2984	EV_FREQUENT_CHECK;
2665	}	2985	}
2666		2986
2667	void	2987	void
2668	ev_fork_stop (EV_P_ ev_fork *w)	2988	ev_fork_stop (EV_P_ ev_fork *w)
2669	{	2989	{
2670	clear_pending (EV_A_ (W)w);	2990	clear_pending (EV_A_ (W)w);
2671	if (expect_false (!ev_is_active (w)))	2991	if (expect_false (!ev_is_active (w)))
2672	return;	2992	return;
2673		2993
		2994	EV_FREQUENT_CHECK;
		2995
2674	{	2996	{
2675	int active = ev_active (w);	2997	int active = ev_active (w);
2676		2998
2677	forks [active - 1] = forks [--forkcnt];	2999	forks [active - 1] = forks [--forkcnt];
2678	ev_active (forks [active - 1]) = active;	3000	ev_active (forks [active - 1]) = active;
2679	}	3001	}
2680		3002
2681	ev_stop (EV_A_ (W)w);	3003	ev_stop (EV_A_ (W)w);
		3004
		3005	EV_FREQUENT_CHECK;
2682	}	3006	}
2683	#endif	3007	#endif
2684		3008
2685	#if EV_ASYNC_ENABLE	3009	#if EV_ASYNC_ENABLE
2686	void	3010	void
…		…
2688	{	3012	{
2689	if (expect_false (ev_is_active (w)))	3013	if (expect_false (ev_is_active (w)))
2690	return;	3014	return;
2691		3015
2692	evpipe_init (EV_A);	3016	evpipe_init (EV_A);
		3017
		3018	EV_FREQUENT_CHECK;
2693		3019
2694	ev_start (EV_A_ (W)w, ++asynccnt);	3020	ev_start (EV_A_ (W)w, ++asynccnt);
2695	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3021	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2696	asyncs [asynccnt - 1] = w;	3022	asyncs [asynccnt - 1] = w;
		3023
		3024	EV_FREQUENT_CHECK;
2697	}	3025	}
2698		3026
2699	void	3027	void
2700	ev_async_stop (EV_P_ ev_async *w)	3028	ev_async_stop (EV_P_ ev_async *w)
2701	{	3029	{
2702	clear_pending (EV_A_ (W)w);	3030	clear_pending (EV_A_ (W)w);
2703	if (expect_false (!ev_is_active (w)))	3031	if (expect_false (!ev_is_active (w)))
2704	return;	3032	return;
2705		3033
		3034	EV_FREQUENT_CHECK;
		3035
2706	{	3036	{
2707	int active = ev_active (w);	3037	int active = ev_active (w);
2708		3038
2709	asyncs [active - 1] = asyncs [--asynccnt];	3039	asyncs [active - 1] = asyncs [--asynccnt];
2710	ev_active (asyncs [active - 1]) = active;	3040	ev_active (asyncs [active - 1]) = active;
2711	}	3041	}
2712		3042
2713	ev_stop (EV_A_ (W)w);	3043	ev_stop (EV_A_ (W)w);
		3044
		3045	EV_FREQUENT_CHECK;
2714	}	3046	}
2715		3047
2716	void	3048	void
2717	ev_async_send (EV_P_ ev_async *w)	3049	ev_async_send (EV_P_ ev_async *w)
2718	{	3050	{
…		…
2735	once_cb (EV_P_ struct ev_once *once, int revents)	3067	once_cb (EV_P_ struct ev_once *once, int revents)
2736	{	3068	{
2737	void (*cb)(int revents, void *arg) = once->cb;	3069	void (*cb)(int revents, void *arg) = once->cb;
2738	void *arg = once->arg;	3070	void *arg = once->arg;
2739		3071
2740	ev_io_stop (EV_A_ &once->io);	3072	ev_io_stop (EV_A_ &once->io);
2741	ev_timer_stop (EV_A_ &once->to);	3073	ev_timer_stop (EV_A_ &once->to);
2742	ev_free (once);	3074	ev_free (once);
2743		3075
2744	cb (revents, arg);	3076	cb (revents, arg);
2745	}	3077	}
2746		3078
2747	static void	3079	static void
2748	once_cb_io (EV_P_ ev_io *w, int revents)	3080	once_cb_io (EV_P_ ev_io *w, int revents)
2749	{	3081	{
2750	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3082	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3083
		3084	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2751	}	3085	}
2752		3086
2753	static void	3087	static void
2754	once_cb_to (EV_P_ ev_timer *w, int revents)	3088	once_cb_to (EV_P_ ev_timer *w, int revents)
2755	{	3089	{
2756	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3090	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3091
		3092	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2757	}	3093	}
2758		3094
2759	void	3095	void
2760	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3096	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2761	{	3097	{

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