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Comparing libev/ev.c (file contents):
Revision 1.247 by root, Wed May 21 21:22:10 2008 UTC vs.
Revision 1.277 by root, Sun Dec 14 21:58:08 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	/*****************************************************************************/
…		…
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	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)	867	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
808		868	#define UPHEAP_DONE(p,k) ((p) == (k))
809	/* towards the root */
810	void inline_speed
811	upheap (ANHE *heap, int k)
812	{
813	ANHE he = heap [k];
814
815	for (;;)
816	{
817	int p = HPARENT (k);
818
819	if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
820	break;
821
822	heap [k] = heap [p];
823	ev_active (ANHE_w (heap [k])) = k;
824	k = p;
825	}
826
827	heap [k] = he;
828	ev_active (ANHE_w (he)) = k;
829	}
830		869
831	/* away from the root */	870	/* away from the root */
832	void inline_speed	871	void inline_speed
833	downheap (ANHE *heap, int N, int k)	872	downheap (ANHE *heap, int N, int k)
834	{	873	{
…		…
837		876
838	for (;;)	877	for (;;)
839	{	878	{
840	ev_tstamp minat;	879	ev_tstamp minat;
841	ANHE *minpos;	880	ANHE *minpos;
842	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	881	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
843		882
844	// find minimum child	883	/* find minimum child */
845	if (expect_true (pos + DHEAP - 1 < E))	884	if (expect_true (pos + DHEAP - 1 < E))
846	{	885	{
847	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	886	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
848	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));
849	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));
…		…
870		909
871	heap [k] = he;	910	heap [k] = he;
872	ev_active (ANHE_w (he)) = k;	911	ev_active (ANHE_w (he)) = k;
873	}	912	}
874		913
875	#else // 4HEAP	914	#else /* 4HEAP */
876		915
877	#define HEAP0 1	916	#define HEAP0 1
878	#define HPARENT(k) ((k) >> 1)	917	#define HPARENT(k) ((k) >> 1)
879		918	#define UPHEAP_DONE(p,k) (!(p))
880	/* towards the root */
881	void inline_speed
882	upheap (ANHE *heap, int k)
883	{
884	ANHE he = heap [k];
885
886	for (;;)
887	{
888	int p = HPARENT (k);
889
890	/* maybe we could use a dummy element at heap [0]? */
891	if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
892	break;
893
894	heap [k] = heap [p];
895	ev_active (ANHE_w (heap [k])) = k;
896	k = p;
897	}
898
899	heap [k] = he;
900	ev_active (ANHE_w (heap [k])) = k;
901	}
902		919
903	/* away from the root */	920	/* away from the root */
904	void inline_speed	921	void inline_speed
905	downheap (ANHE *heap, int N, int k)	922	downheap (ANHE *heap, int N, int k)
906	{	923	{
…		…
908		925
909	for (;;)	926	for (;;)
910	{	927	{
911	int c = k << 1;	928	int c = k << 1;
912		929
913	if (c > N)	930	if (c > N + HEAP0 - 1)
914	break;	931	break;
915		932
916	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])
917	? 1 : 0;	934	? 1 : 0;
918		935
919	if (ANHE_at (he) <= ANHE_at (heap [c]))	936	if (ANHE_at (he) <= ANHE_at (heap [c]))
920	break;	937	break;
921		938
…		…
928	heap [k] = he;	945	heap [k] = he;
929	ev_active (ANHE_w (he)) = k;	946	ev_active (ANHE_w (he)) = k;
930	}	947	}
931	#endif	948	#endif
932		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
933	void inline_size	972	void inline_size
934	adjustheap (ANHE *heap, int N, int k)	973	adjustheap (ANHE *heap, int N, int k)
935	{	974	{
936	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	975	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
937	upheap (heap, k);	976	upheap (heap, k);
938	else	977	else
939	downheap (heap, N, k);	978	downheap (heap, N, k);
940	}	979	}
941		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);
		991	}
		992
942	/*****************************************************************************/	993	/*****************************************************************************/
943		994
944	typedef struct	995	typedef struct
945	{	996	{
946	WL head;	997	WL head;
…		…
950	static ANSIG *signals;	1001	static ANSIG *signals;
951	static int signalmax;	1002	static int signalmax;
952		1003
953	static EV_ATOMIC_T gotsig;	1004	static EV_ATOMIC_T gotsig;
954		1005
955	void inline_size
956	signals_init (ANSIG *base, int count)
957	{
958	while (count--)
959	{
960	base->head = 0;
961	base->gotsig = 0;
962
963	++base;
964	}
965	}
966
967	/*****************************************************************************/	1006	/*****************************************************************************/
968		1007
969	void inline_speed	1008	void inline_speed
970	fd_intern (int fd)	1009	fd_intern (int fd)
971	{	1010	{
972	#ifdef _WIN32	1011	#ifdef _WIN32
973	int arg = 1;	1012	unsigned long arg = 1;
974	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
975	#else	1014	#else
976	fcntl (fd, F_SETFD, FD_CLOEXEC);	1015	fcntl (fd, F_SETFD, FD_CLOEXEC);
977	fcntl (fd, F_SETFL, O_NONBLOCK);	1016	fcntl (fd, F_SETFL, O_NONBLOCK);
978	#endif	1017	#endif
…		…
992	}	1031	}
993	else	1032	else
994	#endif	1033	#endif
995	{	1034	{
996	while (pipe (evpipe))	1035	while (pipe (evpipe))
997	syserr ("(libev) error creating signal/async pipe");	1036	ev_syserr ("(libev) error creating signal/async pipe");
998		1037
999	fd_intern (evpipe [0]);	1038	fd_intern (evpipe [0]);
1000	fd_intern (evpipe [1]);	1039	fd_intern (evpipe [1]);
1001	ev_io_set (&pipeev, evpipe [0], EV_READ);	1040	ev_io_set (&pipeev, evpipe [0], EV_READ);
1002	}	1041	}
…		…
1231	/* kqueue is borked on everything but netbsd apparently */	1270	/* kqueue is borked on everything but netbsd apparently */
1232	/* it usually doesn't work correctly on anything but sockets and pipes */	1271	/* it usually doesn't work correctly on anything but sockets and pipes */
1233	flags &= ~EVBACKEND_KQUEUE;	1272	flags &= ~EVBACKEND_KQUEUE;
1234	#endif	1273	#endif
1235	#ifdef __APPLE__	1274	#ifdef __APPLE__
1236	// flags &= ~EVBACKEND_KQUEUE; for documentation	1275	// flags &= ~EVBACKEND_KQUEUE & ~EVBACKEND_POLL; for documentation
1237	flags &= ~EVBACKEND_POLL;	1276	flags &= ~EVBACKEND_SELECT;
1238	#endif	1277	#endif
1239		1278
1240	return flags;	1279	return flags;
1241	}	1280	}
1242		1281
…		…
1462		1501
1463	postfork = 0;	1502	postfork = 0;
1464	}	1503	}
1465		1504
1466	#if EV_MULTIPLICITY	1505	#if EV_MULTIPLICITY
		1506
1467	struct ev_loop *	1507	struct ev_loop *
1468	ev_loop_new (unsigned int flags)	1508	ev_loop_new (unsigned int flags)
1469	{	1509	{
1470	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));
1471		1511
…		…
1489	void	1529	void
1490	ev_loop_fork (EV_P)	1530	ev_loop_fork (EV_P)
1491	{	1531	{
1492	postfork = 1; /* must be in line with ev_default_fork */	1532	postfork = 1; /* must be in line with ev_default_fork */
1493	}	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)
1494	#endif	1630	# endif
		1631	#endif
		1632	}
		1633
		1634	#endif /* multiplicity */
1495		1635
1496	#if EV_MULTIPLICITY	1636	#if EV_MULTIPLICITY
1497	struct ev_loop *	1637	struct ev_loop *
1498	ev_default_loop_init (unsigned int flags)	1638	ev_default_loop_init (unsigned int flags)
1499	#else	1639	#else
…		…
1532	{	1672	{
1533	#if EV_MULTIPLICITY	1673	#if EV_MULTIPLICITY
1534	struct ev_loop *loop = ev_default_loop_ptr;	1674	struct ev_loop *loop = ev_default_loop_ptr;
1535	#endif	1675	#endif
1536		1676
		1677	ev_default_loop_ptr = 0;
		1678
1537	#ifndef _WIN32	1679	#ifndef _WIN32
1538	ev_ref (EV_A); /* child watcher */	1680	ev_ref (EV_A); /* child watcher */
1539	ev_signal_stop (EV_A_ &childev);	1681	ev_signal_stop (EV_A_ &childev);
1540	#endif	1682	#endif
1541		1683
…		…
1547	{	1689	{
1548	#if EV_MULTIPLICITY	1690	#if EV_MULTIPLICITY
1549	struct ev_loop *loop = ev_default_loop_ptr;	1691	struct ev_loop *loop = ev_default_loop_ptr;
1550	#endif	1692	#endif
1551		1693
1552	if (backend)
1553	postfork = 1; /* must be in line with ev_loop_fork */	1694	postfork = 1; /* must be in line with ev_loop_fork */
1554	}	1695	}
1555		1696
1556	/*****************************************************************************/	1697	/*****************************************************************************/
1557		1698
1558	void	1699	void
…		…
1575	{	1716	{
1576	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1717	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1577		1718
1578	p->w->pending = 0;	1719	p->w->pending = 0;
1579	EV_CB_INVOKE (p->w, p->events);	1720	EV_CB_INVOKE (p->w, p->events);
		1721	EV_FREQUENT_CHECK;
1580	}	1722	}
1581	}	1723	}
1582	}	1724	}
1583		1725
1584	#if EV_IDLE_ENABLE	1726	#if EV_IDLE_ENABLE
…		…
1605	#endif	1747	#endif
1606		1748
1607	void inline_size	1749	void inline_size
1608	timers_reify (EV_P)	1750	timers_reify (EV_P)
1609	{	1751	{
		1752	EV_FREQUENT_CHECK;
		1753
1610	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1754	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1611	{	1755	{
1612	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1756	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1613		1757
1614	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1758	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
…		…
1620	if (ev_at (w) < mn_now)	1764	if (ev_at (w) < mn_now)
1621	ev_at (w) = mn_now;	1765	ev_at (w) = mn_now;
1622		1766
1623	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.));
1624		1768
1625	ANHE_at_set (timers [HEAP0]);	1769	ANHE_at_cache (timers [HEAP0]);
1626	downheap (timers, timercnt, HEAP0);	1770	downheap (timers, timercnt, HEAP0);
1627	}	1771	}
1628	else	1772	else
1629	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1773	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1630		1774
		1775	EV_FREQUENT_CHECK;
1631	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1776	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1632	}	1777	}
1633	}	1778	}
1634		1779
1635	#if EV_PERIODIC_ENABLE	1780	#if EV_PERIODIC_ENABLE
1636	void inline_size	1781	void inline_size
1637	periodics_reify (EV_P)	1782	periodics_reify (EV_P)
1638	{	1783	{
		1784	EV_FREQUENT_CHECK;
		1785
1639	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1786	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1640	{	1787	{
1641	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1788	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1642		1789
1643	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1790	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
1647	{	1794	{
1648	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1795	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1649		1796
1650	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));
1651		1798
1652	ANHE_at_set (periodics [HEAP0]);	1799	ANHE_at_cache (periodics [HEAP0]);
1653	downheap (periodics, periodiccnt, HEAP0);	1800	downheap (periodics, periodiccnt, HEAP0);
1654	}	1801	}
1655	else if (w->interval)	1802	else if (w->interval)
1656	{	1803	{
1657	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;
…		…
1666	/* has effectively asked to get triggered more often than possible */	1813	/* has effectively asked to get triggered more often than possible */
1667	if (ev_at (w) < ev_rt_now)	1814	if (ev_at (w) < ev_rt_now)
1668	ev_at (w) = ev_rt_now;	1815	ev_at (w) = ev_rt_now;
1669	}	1816	}
1670		1817
1671	ANHE_at_set (periodics [HEAP0]);	1818	ANHE_at_cache (periodics [HEAP0]);
1672	downheap (periodics, periodiccnt, HEAP0);	1819	downheap (periodics, periodiccnt, HEAP0);
1673	}	1820	}
1674	else	1821	else
1675	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1822	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1676		1823
		1824	EV_FREQUENT_CHECK;
1677	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1825	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1678	}	1826	}
1679	}	1827	}
1680		1828
1681	static void noinline	1829	static void noinline
…		…
1691	if (w->reschedule_cb)	1839	if (w->reschedule_cb)
1692	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1840	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1693	else if (w->interval)	1841	else if (w->interval)
1694	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;
1695		1843
1696	ANHE_at_set (periodics [i]);	1844	ANHE_at_cache (periodics [i]);
1697	}	1845	}
1698		1846
1699	/* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */	1847	reheap (periodics, periodiccnt);
1700	/* also, this is easy and corretc for both 2-heaps and 4-heaps */
1701	for (i = 0; i < periodiccnt; ++i)
1702	upheap (periodics, i + HEAP0);
1703	}	1848	}
1704	#endif	1849	#endif
1705		1850
1706	void inline_speed	1851	void inline_speed
1707	time_update (EV_P_ ev_tstamp max_block)	1852	time_update (EV_P_ ev_tstamp max_block)
…		…
1765	/* 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 */
1766	for (i = 0; i < timercnt; ++i)	1911	for (i = 0; i < timercnt; ++i)
1767	{	1912	{
1768	ANHE *he = timers + i + HEAP0;	1913	ANHE *he = timers + i + HEAP0;
1769	ANHE_w (*he)->at += ev_rt_now - mn_now;	1914	ANHE_w (*he)->at += ev_rt_now - mn_now;
1770	ANHE_at_set (*he);	1915	ANHE_at_cache (*he);
1771	}	1916	}
1772	}	1917	}
1773		1918
1774	mn_now = ev_rt_now;	1919	mn_now = ev_rt_now;
1775	}	1920	}
…		…
1785	ev_unref (EV_P)	1930	ev_unref (EV_P)
1786	{	1931	{
1787	--activecnt;	1932	--activecnt;
1788	}	1933	}
1789		1934
		1935	void
		1936	ev_now_update (EV_P)
		1937	{
		1938	time_update (EV_A_ 1e100);
		1939	}
		1940
1790	static int loop_done;	1941	static int loop_done;
1791		1942
1792	void	1943	void
1793	ev_loop (EV_P_ int flags)	1944	ev_loop (EV_P_ int flags)
1794	{	1945	{
…		…
1796		1947
1797	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 */
1798		1949
1799	do	1950	do
1800	{	1951	{
		1952	#if EV_VERIFY >= 2
		1953	ev_loop_verify (EV_A);
		1954	#endif
		1955
1801	#ifndef _WIN32	1956	#ifndef _WIN32
1802	if (expect_false (curpid)) /* penalise the forking check even more */	1957	if (expect_false (curpid)) /* penalise the forking check even more */
1803	if (expect_false (getpid () != curpid))	1958	if (expect_false (getpid () != curpid))
1804	{	1959	{
1805	curpid = getpid ();	1960	curpid = getpid ();
…		…
1999		2154
2000	if (expect_false (ev_is_active (w)))	2155	if (expect_false (ev_is_active (w)))
2001	return;	2156	return;
2002		2157
2003	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;
2004		2162
2005	ev_start (EV_A_ (W)w, 1);	2163	ev_start (EV_A_ (W)w, 1);
2006	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2164	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2007	wlist_add (&anfds[fd].head, (WL)w);	2165	wlist_add (&anfds[fd].head, (WL)w);
2008		2166
2009	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2167	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
2010	w->events &= ~EV_IOFDSET;	2168	w->events &= ~EV_IOFDSET;
		2169
		2170	EV_FREQUENT_CHECK;
2011	}	2171	}
2012		2172
2013	void noinline	2173	void noinline
2014	ev_io_stop (EV_P_ ev_io *w)	2174	ev_io_stop (EV_P_ ev_io *w)
2015	{	2175	{
…		…
2017	if (expect_false (!ev_is_active (w)))	2177	if (expect_false (!ev_is_active (w)))
2018	return;	2178	return;
2019		2179
2020	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));
2021		2181
		2182	EV_FREQUENT_CHECK;
		2183
2022	wlist_del (&anfds[w->fd].head, (WL)w);	2184	wlist_del (&anfds[w->fd].head, (WL)w);
2023	ev_stop (EV_A_ (W)w);	2185	ev_stop (EV_A_ (W)w);
2024		2186
2025	fd_change (EV_A_ w->fd, 1);	2187	fd_change (EV_A_ w->fd, 1);
		2188
		2189	EV_FREQUENT_CHECK;
2026	}	2190	}
2027		2191
2028	void noinline	2192	void noinline
2029	ev_timer_start (EV_P_ ev_timer *w)	2193	ev_timer_start (EV_P_ ev_timer *w)
2030	{	2194	{
…		…
2033		2197
2034	ev_at (w) += mn_now;	2198	ev_at (w) += mn_now;
2035		2199
2036	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.));
2037		2201
		2202	EV_FREQUENT_CHECK;
		2203
		2204	++timercnt;
2038	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2205	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2039	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	2206	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2040	ANHE_w (timers [ev_active (w)]) = (WT)w;	2207	ANHE_w (timers [ev_active (w)]) = (WT)w;
2041	ANHE_at_set (timers [ev_active (w)]);	2208	ANHE_at_cache (timers [ev_active (w)]);
2042	upheap (timers, ev_active (w));	2209	upheap (timers, ev_active (w));
		2210
		2211	EV_FREQUENT_CHECK;
2043		2212
2044	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	2213	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2045	}	2214	}
2046		2215
2047	void noinline	2216	void noinline
…		…
2049	{	2218	{
2050	clear_pending (EV_A_ (W)w);	2219	clear_pending (EV_A_ (W)w);
2051	if (expect_false (!ev_is_active (w)))	2220	if (expect_false (!ev_is_active (w)))
2052	return;	2221	return;
2053		2222
		2223	EV_FREQUENT_CHECK;
		2224
2054	{	2225	{
2055	int active = ev_active (w);	2226	int active = ev_active (w);
2056		2227
2057	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2228	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2058		2229
		2230	--timercnt;
		2231
2059	if (expect_true (active < timercnt + HEAP0 - 1))	2232	if (expect_true (active < timercnt + HEAP0))
2060	{	2233	{
2061	timers [active] = timers [timercnt + HEAP0 - 1];	2234	timers [active] = timers [timercnt + HEAP0];
2062	adjustheap (timers, timercnt, active);	2235	adjustheap (timers, timercnt, active);
2063	}	2236	}
2064
2065	--timercnt;
2066	}	2237	}
		2238
		2239	EV_FREQUENT_CHECK;
2067		2240
2068	ev_at (w) -= mn_now;	2241	ev_at (w) -= mn_now;
2069		2242
2070	ev_stop (EV_A_ (W)w);	2243	ev_stop (EV_A_ (W)w);
2071	}	2244	}
2072		2245
2073	void noinline	2246	void noinline
2074	ev_timer_again (EV_P_ ev_timer *w)	2247	ev_timer_again (EV_P_ ev_timer *w)
2075	{	2248	{
		2249	EV_FREQUENT_CHECK;
		2250
2076	if (ev_is_active (w))	2251	if (ev_is_active (w))
2077	{	2252	{
2078	if (w->repeat)	2253	if (w->repeat)
2079	{	2254	{
2080	ev_at (w) = mn_now + w->repeat;	2255	ev_at (w) = mn_now + w->repeat;
2081	ANHE_at_set (timers [ev_active (w)]);	2256	ANHE_at_cache (timers [ev_active (w)]);
2082	adjustheap (timers, timercnt, ev_active (w));	2257	adjustheap (timers, timercnt, ev_active (w));
2083	}	2258	}
2084	else	2259	else
2085	ev_timer_stop (EV_A_ w);	2260	ev_timer_stop (EV_A_ w);
2086	}	2261	}
2087	else if (w->repeat)	2262	else if (w->repeat)
2088	{	2263	{
2089	ev_at (w) = w->repeat;	2264	ev_at (w) = w->repeat;
2090	ev_timer_start (EV_A_ w);	2265	ev_timer_start (EV_A_ w);
2091	}	2266	}
		2267
		2268	EV_FREQUENT_CHECK;
2092	}	2269	}
2093		2270
2094	#if EV_PERIODIC_ENABLE	2271	#if EV_PERIODIC_ENABLE
2095	void noinline	2272	void noinline
2096	ev_periodic_start (EV_P_ ev_periodic *w)	2273	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2107	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;
2108	}	2285	}
2109	else	2286	else
2110	ev_at (w) = w->offset;	2287	ev_at (w) = w->offset;
2111		2288
		2289	EV_FREQUENT_CHECK;
		2290
		2291	++periodiccnt;
2112	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2292	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2113	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	2293	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2114	ANHE_w (periodics [ev_active (w)]) = (WT)w;	2294	ANHE_w (periodics [ev_active (w)]) = (WT)w;
2115	ANHE_at_set (periodics [ev_active (w)]);	2295	ANHE_at_cache (periodics [ev_active (w)]);
2116	upheap (periodics, ev_active (w));	2296	upheap (periodics, ev_active (w));
		2297
		2298	EV_FREQUENT_CHECK;
2117		2299
2118	/*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));*/
2119	}	2301	}
2120		2302
2121	void noinline	2303	void noinline
…		…
2123	{	2305	{
2124	clear_pending (EV_A_ (W)w);	2306	clear_pending (EV_A_ (W)w);
2125	if (expect_false (!ev_is_active (w)))	2307	if (expect_false (!ev_is_active (w)))
2126	return;	2308	return;
2127		2309
		2310	EV_FREQUENT_CHECK;
		2311
2128	{	2312	{
2129	int active = ev_active (w);	2313	int active = ev_active (w);
2130		2314
2131	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2315	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2132		2316
		2317	--periodiccnt;
		2318
2133	if (expect_true (active < periodiccnt + HEAP0 - 1))	2319	if (expect_true (active < periodiccnt + HEAP0))
2134	{	2320	{
2135	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2321	periodics [active] = periodics [periodiccnt + HEAP0];
2136	adjustheap (periodics, periodiccnt, active);	2322	adjustheap (periodics, periodiccnt, active);
2137	}	2323	}
2138
2139	--periodiccnt;
2140	}	2324	}
		2325
		2326	EV_FREQUENT_CHECK;
2141		2327
2142	ev_stop (EV_A_ (W)w);	2328	ev_stop (EV_A_ (W)w);
2143	}	2329	}
2144		2330
2145	void noinline	2331	void noinline
…		…
2165	return;	2351	return;
2166		2352
2167	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));
2168		2354
2169	evpipe_init (EV_A);	2355	evpipe_init (EV_A);
		2356
		2357	EV_FREQUENT_CHECK;
2170		2358
2171	{	2359	{
2172	#ifndef _WIN32	2360	#ifndef _WIN32
2173	sigset_t full, prev;	2361	sigset_t full, prev;
2174	sigfillset (&full);	2362	sigfillset (&full);
2175	sigprocmask (SIG_SETMASK, &full, &prev);	2363	sigprocmask (SIG_SETMASK, &full, &prev);
2176	#endif	2364	#endif
2177		2365
2178	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2366	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2179		2367
2180	#ifndef _WIN32	2368	#ifndef _WIN32
2181	sigprocmask (SIG_SETMASK, &prev, 0);	2369	sigprocmask (SIG_SETMASK, &prev, 0);
2182	#endif	2370	#endif
2183	}	2371	}
…		…
2195	sigfillset (&sa.sa_mask);	2383	sigfillset (&sa.sa_mask);
2196	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 */
2197	sigaction (w->signum, &sa, 0);	2385	sigaction (w->signum, &sa, 0);
2198	#endif	2386	#endif
2199	}	2387	}
		2388
		2389	EV_FREQUENT_CHECK;
2200	}	2390	}
2201		2391
2202	void noinline	2392	void noinline
2203	ev_signal_stop (EV_P_ ev_signal *w)	2393	ev_signal_stop (EV_P_ ev_signal *w)
2204	{	2394	{
2205	clear_pending (EV_A_ (W)w);	2395	clear_pending (EV_A_ (W)w);
2206	if (expect_false (!ev_is_active (w)))	2396	if (expect_false (!ev_is_active (w)))
2207	return;	2397	return;
2208		2398
		2399	EV_FREQUENT_CHECK;
		2400
2209	wlist_del (&signals [w->signum - 1].head, (WL)w);	2401	wlist_del (&signals [w->signum - 1].head, (WL)w);
2210	ev_stop (EV_A_ (W)w);	2402	ev_stop (EV_A_ (W)w);
2211		2403
2212	if (!signals [w->signum - 1].head)	2404	if (!signals [w->signum - 1].head)
2213	signal (w->signum, SIG_DFL);	2405	signal (w->signum, SIG_DFL);
		2406
		2407	EV_FREQUENT_CHECK;
2214	}	2408	}
2215		2409
2216	void	2410	void
2217	ev_child_start (EV_P_ ev_child *w)	2411	ev_child_start (EV_P_ ev_child *w)
2218	{	2412	{
…		…
2220	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));
2221	#endif	2415	#endif
2222	if (expect_false (ev_is_active (w)))	2416	if (expect_false (ev_is_active (w)))
2223	return;	2417	return;
2224		2418
		2419	EV_FREQUENT_CHECK;
		2420
2225	ev_start (EV_A_ (W)w, 1);	2421	ev_start (EV_A_ (W)w, 1);
2226	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;
2227	}	2425	}
2228		2426
2229	void	2427	void
2230	ev_child_stop (EV_P_ ev_child *w)	2428	ev_child_stop (EV_P_ ev_child *w)
2231	{	2429	{
2232	clear_pending (EV_A_ (W)w);	2430	clear_pending (EV_A_ (W)w);
2233	if (expect_false (!ev_is_active (w)))	2431	if (expect_false (!ev_is_active (w)))
2234	return;	2432	return;
2235		2433
		2434	EV_FREQUENT_CHECK;
		2435
2236	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2436	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2237	ev_stop (EV_A_ (W)w);	2437	ev_stop (EV_A_ (W)w);
		2438
		2439	EV_FREQUENT_CHECK;
2238	}	2440	}
2239		2441
2240	#if EV_STAT_ENABLE	2442	#if EV_STAT_ENABLE
2241		2443
2242	# ifdef _WIN32	2444	# ifdef _WIN32
2243	# undef lstat	2445	# undef lstat
2244	# define lstat(a,b) _stati64 (a,b)	2446	# define lstat(a,b) _stati64 (a,b)
2245	# endif	2447	# endif
2246		2448
2247	#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 */
2248	#define MIN_STAT_INTERVAL 0.1074891	2451	#define MIN_STAT_INTERVAL 0.1074891
2249		2452
2250	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);
2251		2454
2252	#if EV_USE_INOTIFY	2455	#if EV_USE_INOTIFY
2253	# define EV_INOTIFY_BUFSIZE 8192	2456	# define EV_INOTIFY_BUFSIZE 8192
…		…
2257	{	2460	{
2258	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);
2259		2462
2260	if (w->wd < 0)	2463	if (w->wd < 0)
2261	{	2464	{
		2465	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2262	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 */
2263		2467
2264	/* monitor some parent directory for speedup hints */	2468	/* monitor some parent directory for speedup hints */
2265	/* note that exceeding the hardcoded limit is not a correctness issue, */	2469	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2266	/* but an efficiency issue only */	2470	/* but an efficiency issue only */
2267	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2471	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2268	{	2472	{
2269	char path [4096];	2473	char path [4096];
2270	strcpy (path, w->path);	2474	strcpy (path, w->path);
…		…
2274	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2478	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2275	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2479	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2276		2480
2277	char *pend = strrchr (path, '/');	2481	char *pend = strrchr (path, '/');
2278		2482
2279	if (!pend)	2483	if (!pend || pend == path)
2280	break; /* whoops, no '/', complain to your admin */	2484	break;
2281		2485
2282	*pend = 0;	2486	*pend = 0;
2283	w->wd = inotify_add_watch (fs_fd, path, mask);	2487	w->wd = inotify_add_watch (fs_fd, path, mask);
2284	}	2488	}
2285	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2489	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2286	}	2490	}
2287	}	2491	}
2288	else
2289	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2290		2492
2291	if (w->wd >= 0)	2493	if (w->wd >= 0)
		2494	{
2292	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2495	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2496
		2497	/* now local changes will be tracked by inotify, but remote changes won't */
		2498	/* unless the filesystem it known to be local, we therefore still poll */
		2499	/* also do poll on <2.6.25, but with normal frequency */
		2500	struct statfs sfs;
		2501
		2502	if (fs_2625 && !statfs (w->path, &sfs))
		2503	if (sfs.f_type == 0x1373 /* devfs */
		2504	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2505	|| sfs.f_type == 0x3153464a /* jfs */
		2506	|| sfs.f_type == 0x52654973 /* reiser3 */
		2507	|| sfs.f_type == 0x01021994 /* tempfs */
		2508	|| sfs.f_type == 0x58465342 /* xfs */)
		2509	return;
		2510
		2511	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2512	ev_timer_again (EV_A_ &w->timer);
		2513	}
2293	}	2514	}
2294		2515
2295	static void noinline	2516	static void noinline
2296	infy_del (EV_P_ ev_stat *w)	2517	infy_del (EV_P_ ev_stat *w)
2297	{	2518	{
…		…
2311		2532
2312	static void noinline	2533	static void noinline
2313	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2534	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2314	{	2535	{
2315	if (slot < 0)	2536	if (slot < 0)
2316	/* overflow, need to check for all hahs slots */	2537	/* overflow, need to check for all hash slots */
2317	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2538	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2318	infy_wd (EV_A_ slot, wd, ev);	2539	infy_wd (EV_A_ slot, wd, ev);
2319	else	2540	else
2320	{	2541	{
2321	WL w_;	2542	WL w_;
…		…
2327		2548
2328	if (w->wd == wd || wd == -1)	2549	if (w->wd == wd || wd == -1)
2329	{	2550	{
2330	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2551	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2331	{	2552	{
		2553	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2332	w->wd = -1;	2554	w->wd = -1;
2333	infy_add (EV_A_ w); /* re-add, no matter what */	2555	infy_add (EV_A_ w); /* re-add, no matter what */
2334	}	2556	}
2335		2557
2336	stat_timer_cb (EV_A_ &w->timer, 0);	2558	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2350	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2572	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2351	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2573	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2352	}	2574	}
2353		2575
2354	void inline_size	2576	void inline_size
		2577	check_2625 (EV_P)
		2578	{
		2579	/* kernels < 2.6.25 are borked
		2580	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2581	*/
		2582	struct utsname buf;
		2583	int major, minor, micro;
		2584
		2585	if (uname (&buf))
		2586	return;
		2587
		2588	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2589	return;
		2590
		2591	if (major < 2
		2592	|| (major == 2 && minor < 6)
		2593	|| (major == 2 && minor == 6 && micro < 25))
		2594	return;
		2595
		2596	fs_2625 = 1;
		2597	}
		2598
		2599	void inline_size
2355	infy_init (EV_P)	2600	infy_init (EV_P)
2356	{	2601	{
2357	if (fs_fd != -2)	2602	if (fs_fd != -2)
2358	return;	2603	return;
		2604
		2605	fs_fd = -1;
		2606
		2607	check_2625 (EV_A);
2359		2608
2360	fs_fd = inotify_init ();	2609	fs_fd = inotify_init ();
2361		2610
2362	if (fs_fd >= 0)	2611	if (fs_fd >= 0)
2363	{	2612	{
…		…
2391	w->wd = -1;	2640	w->wd = -1;
2392		2641
2393	if (fs_fd >= 0)	2642	if (fs_fd >= 0)
2394	infy_add (EV_A_ w); /* re-add, no matter what */	2643	infy_add (EV_A_ w); /* re-add, no matter what */
2395	else	2644	else
2396	ev_timer_start (EV_A_ &w->timer);	2645	ev_timer_again (EV_A_ &w->timer);
2397	}	2646	}
2398
2399	}	2647	}
2400	}	2648	}
2401		2649
		2650	#endif
		2651
		2652	#ifdef _WIN32
		2653	# define EV_LSTAT(p,b) _stati64 (p, b)
		2654	#else
		2655	# define EV_LSTAT(p,b) lstat (p, b)
2402	#endif	2656	#endif
2403		2657
2404	void	2658	void
2405	ev_stat_stat (EV_P_ ev_stat *w)	2659	ev_stat_stat (EV_P_ ev_stat *w)
2406	{	2660	{
…		…
2433	|| w->prev.st_atime != w->attr.st_atime	2687	|| w->prev.st_atime != w->attr.st_atime
2434	|| w->prev.st_mtime != w->attr.st_mtime	2688	|| w->prev.st_mtime != w->attr.st_mtime
2435	|| w->prev.st_ctime != w->attr.st_ctime	2689	|| w->prev.st_ctime != w->attr.st_ctime
2436	) {	2690	) {
2437	#if EV_USE_INOTIFY	2691	#if EV_USE_INOTIFY
		2692	if (fs_fd >= 0)
		2693	{
2438	infy_del (EV_A_ w);	2694	infy_del (EV_A_ w);
2439	infy_add (EV_A_ w);	2695	infy_add (EV_A_ w);
2440	ev_stat_stat (EV_A_ w); /* avoid race... */	2696	ev_stat_stat (EV_A_ w); /* avoid race... */
		2697	}
2441	#endif	2698	#endif
2442		2699
2443	ev_feed_event (EV_A_ w, EV_STAT);	2700	ev_feed_event (EV_A_ w, EV_STAT);
2444	}	2701	}
2445	}	2702	}
…		…
2448	ev_stat_start (EV_P_ ev_stat *w)	2705	ev_stat_start (EV_P_ ev_stat *w)
2449	{	2706	{
2450	if (expect_false (ev_is_active (w)))	2707	if (expect_false (ev_is_active (w)))
2451	return;	2708	return;
2452		2709
2453	/* since we use memcmp, we need to clear any padding data etc. */
2454	memset (&w->prev, 0, sizeof (ev_statdata));
2455	memset (&w->attr, 0, sizeof (ev_statdata));
2456
2457	ev_stat_stat (EV_A_ w);	2710	ev_stat_stat (EV_A_ w);
2458		2711
		2712	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2459	if (w->interval < MIN_STAT_INTERVAL)	2713	w->interval = MIN_STAT_INTERVAL;
2460	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2461		2714
2462	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2715	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2463	ev_set_priority (&w->timer, ev_priority (w));	2716	ev_set_priority (&w->timer, ev_priority (w));
2464		2717
2465	#if EV_USE_INOTIFY	2718	#if EV_USE_INOTIFY
2466	infy_init (EV_A);	2719	infy_init (EV_A);
2467		2720
2468	if (fs_fd >= 0)	2721	if (fs_fd >= 0)
2469	infy_add (EV_A_ w);	2722	infy_add (EV_A_ w);
2470	else	2723	else
2471	#endif	2724	#endif
2472	ev_timer_start (EV_A_ &w->timer);	2725	ev_timer_again (EV_A_ &w->timer);
2473		2726
2474	ev_start (EV_A_ (W)w, 1);	2727	ev_start (EV_A_ (W)w, 1);
		2728
		2729	EV_FREQUENT_CHECK;
2475	}	2730	}
2476		2731
2477	void	2732	void
2478	ev_stat_stop (EV_P_ ev_stat *w)	2733	ev_stat_stop (EV_P_ ev_stat *w)
2479	{	2734	{
2480	clear_pending (EV_A_ (W)w);	2735	clear_pending (EV_A_ (W)w);
2481	if (expect_false (!ev_is_active (w)))	2736	if (expect_false (!ev_is_active (w)))
2482	return;	2737	return;
2483		2738
		2739	EV_FREQUENT_CHECK;
		2740
2484	#if EV_USE_INOTIFY	2741	#if EV_USE_INOTIFY
2485	infy_del (EV_A_ w);	2742	infy_del (EV_A_ w);
2486	#endif	2743	#endif
2487	ev_timer_stop (EV_A_ &w->timer);	2744	ev_timer_stop (EV_A_ &w->timer);
2488		2745
2489	ev_stop (EV_A_ (W)w);	2746	ev_stop (EV_A_ (W)w);
		2747
		2748	EV_FREQUENT_CHECK;
2490	}	2749	}
2491	#endif	2750	#endif
2492		2751
2493	#if EV_IDLE_ENABLE	2752	#if EV_IDLE_ENABLE
2494	void	2753	void
…		…
2496	{	2755	{
2497	if (expect_false (ev_is_active (w)))	2756	if (expect_false (ev_is_active (w)))
2498	return;	2757	return;
2499		2758
2500	pri_adjust (EV_A_ (W)w);	2759	pri_adjust (EV_A_ (W)w);
		2760
		2761	EV_FREQUENT_CHECK;
2501		2762
2502	{	2763	{
2503	int active = ++idlecnt [ABSPRI (w)];	2764	int active = ++idlecnt [ABSPRI (w)];
2504		2765
2505	++idleall;	2766	++idleall;
2506	ev_start (EV_A_ (W)w, active);	2767	ev_start (EV_A_ (W)w, active);
2507		2768
2508	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2769	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2509	idles [ABSPRI (w)][active - 1] = w;	2770	idles [ABSPRI (w)][active - 1] = w;
2510	}	2771	}
		2772
		2773	EV_FREQUENT_CHECK;
2511	}	2774	}
2512		2775
2513	void	2776	void
2514	ev_idle_stop (EV_P_ ev_idle *w)	2777	ev_idle_stop (EV_P_ ev_idle *w)
2515	{	2778	{
2516	clear_pending (EV_A_ (W)w);	2779	clear_pending (EV_A_ (W)w);
2517	if (expect_false (!ev_is_active (w)))	2780	if (expect_false (!ev_is_active (w)))
2518	return;	2781	return;
2519		2782
		2783	EV_FREQUENT_CHECK;
		2784
2520	{	2785	{
2521	int active = ev_active (w);	2786	int active = ev_active (w);
2522		2787
2523	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2788	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2524	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2789	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2525		2790
2526	ev_stop (EV_A_ (W)w);	2791	ev_stop (EV_A_ (W)w);
2527	--idleall;	2792	--idleall;
2528	}	2793	}
		2794
		2795	EV_FREQUENT_CHECK;
2529	}	2796	}
2530	#endif	2797	#endif
2531		2798
2532	void	2799	void
2533	ev_prepare_start (EV_P_ ev_prepare *w)	2800	ev_prepare_start (EV_P_ ev_prepare *w)
2534	{	2801	{
2535	if (expect_false (ev_is_active (w)))	2802	if (expect_false (ev_is_active (w)))
2536	return;	2803	return;
		2804
		2805	EV_FREQUENT_CHECK;
2537		2806
2538	ev_start (EV_A_ (W)w, ++preparecnt);	2807	ev_start (EV_A_ (W)w, ++preparecnt);
2539	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2808	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2540	prepares [preparecnt - 1] = w;	2809	prepares [preparecnt - 1] = w;
		2810
		2811	EV_FREQUENT_CHECK;
2541	}	2812	}
2542		2813
2543	void	2814	void
2544	ev_prepare_stop (EV_P_ ev_prepare *w)	2815	ev_prepare_stop (EV_P_ ev_prepare *w)
2545	{	2816	{
2546	clear_pending (EV_A_ (W)w);	2817	clear_pending (EV_A_ (W)w);
2547	if (expect_false (!ev_is_active (w)))	2818	if (expect_false (!ev_is_active (w)))
2548	return;	2819	return;
2549		2820
		2821	EV_FREQUENT_CHECK;
		2822
2550	{	2823	{
2551	int active = ev_active (w);	2824	int active = ev_active (w);
2552		2825
2553	prepares [active - 1] = prepares [--preparecnt];	2826	prepares [active - 1] = prepares [--preparecnt];
2554	ev_active (prepares [active - 1]) = active;	2827	ev_active (prepares [active - 1]) = active;
2555	}	2828	}
2556		2829
2557	ev_stop (EV_A_ (W)w);	2830	ev_stop (EV_A_ (W)w);
		2831
		2832	EV_FREQUENT_CHECK;
2558	}	2833	}
2559		2834
2560	void	2835	void
2561	ev_check_start (EV_P_ ev_check *w)	2836	ev_check_start (EV_P_ ev_check *w)
2562	{	2837	{
2563	if (expect_false (ev_is_active (w)))	2838	if (expect_false (ev_is_active (w)))
2564	return;	2839	return;
		2840
		2841	EV_FREQUENT_CHECK;
2565		2842
2566	ev_start (EV_A_ (W)w, ++checkcnt);	2843	ev_start (EV_A_ (W)w, ++checkcnt);
2567	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2844	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2568	checks [checkcnt - 1] = w;	2845	checks [checkcnt - 1] = w;
		2846
		2847	EV_FREQUENT_CHECK;
2569	}	2848	}
2570		2849
2571	void	2850	void
2572	ev_check_stop (EV_P_ ev_check *w)	2851	ev_check_stop (EV_P_ ev_check *w)
2573	{	2852	{
2574	clear_pending (EV_A_ (W)w);	2853	clear_pending (EV_A_ (W)w);
2575	if (expect_false (!ev_is_active (w)))	2854	if (expect_false (!ev_is_active (w)))
2576	return;	2855	return;
2577		2856
		2857	EV_FREQUENT_CHECK;
		2858
2578	{	2859	{
2579	int active = ev_active (w);	2860	int active = ev_active (w);
2580		2861
2581	checks [active - 1] = checks [--checkcnt];	2862	checks [active - 1] = checks [--checkcnt];
2582	ev_active (checks [active - 1]) = active;	2863	ev_active (checks [active - 1]) = active;
2583	}	2864	}
2584		2865
2585	ev_stop (EV_A_ (W)w);	2866	ev_stop (EV_A_ (W)w);
		2867
		2868	EV_FREQUENT_CHECK;
2586	}	2869	}
2587		2870
2588	#if EV_EMBED_ENABLE	2871	#if EV_EMBED_ENABLE
2589	void noinline	2872	void noinline
2590	ev_embed_sweep (EV_P_ ev_embed *w)	2873	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2617	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2900	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2618	}	2901	}
2619	}	2902	}
2620	}	2903	}
2621		2904
		2905	static void
		2906	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2907	{
		2908	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
		2909
		2910	ev_embed_stop (EV_A_ w);
		2911
		2912	{
		2913	struct ev_loop *loop = w->other;
		2914
		2915	ev_loop_fork (EV_A);
		2916	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2917	}
		2918
		2919	ev_embed_start (EV_A_ w);
		2920	}
		2921
2622	#if 0	2922	#if 0
2623	static void	2923	static void
2624	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2924	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2625	{	2925	{
2626	ev_idle_stop (EV_A_ idle);	2926	ev_idle_stop (EV_A_ idle);
…		…
2637	struct ev_loop *loop = w->other;	2937	struct ev_loop *loop = w->other;
2638	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2938	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2639	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2939	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2640	}	2940	}
2641		2941
		2942	EV_FREQUENT_CHECK;
		2943
2642	ev_set_priority (&w->io, ev_priority (w));	2944	ev_set_priority (&w->io, ev_priority (w));
2643	ev_io_start (EV_A_ &w->io);	2945	ev_io_start (EV_A_ &w->io);
2644		2946
2645	ev_prepare_init (&w->prepare, embed_prepare_cb);	2947	ev_prepare_init (&w->prepare, embed_prepare_cb);
2646	ev_set_priority (&w->prepare, EV_MINPRI);	2948	ev_set_priority (&w->prepare, EV_MINPRI);
2647	ev_prepare_start (EV_A_ &w->prepare);	2949	ev_prepare_start (EV_A_ &w->prepare);
2648		2950
		2951	ev_fork_init (&w->fork, embed_fork_cb);
		2952	ev_fork_start (EV_A_ &w->fork);
		2953
2649	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	2954	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2650		2955
2651	ev_start (EV_A_ (W)w, 1);	2956	ev_start (EV_A_ (W)w, 1);
		2957
		2958	EV_FREQUENT_CHECK;
2652	}	2959	}
2653		2960
2654	void	2961	void
2655	ev_embed_stop (EV_P_ ev_embed *w)	2962	ev_embed_stop (EV_P_ ev_embed *w)
2656	{	2963	{
2657	clear_pending (EV_A_ (W)w);	2964	clear_pending (EV_A_ (W)w);
2658	if (expect_false (!ev_is_active (w)))	2965	if (expect_false (!ev_is_active (w)))
2659	return;	2966	return;
2660		2967
		2968	EV_FREQUENT_CHECK;
		2969
2661	ev_io_stop (EV_A_ &w->io);	2970	ev_io_stop (EV_A_ &w->io);
2662	ev_prepare_stop (EV_A_ &w->prepare);	2971	ev_prepare_stop (EV_A_ &w->prepare);
		2972	ev_fork_stop (EV_A_ &w->fork);
2663		2973
2664	ev_stop (EV_A_ (W)w);	2974	EV_FREQUENT_CHECK;
2665	}	2975	}
2666	#endif	2976	#endif
2667		2977
2668	#if EV_FORK_ENABLE	2978	#if EV_FORK_ENABLE
2669	void	2979	void
2670	ev_fork_start (EV_P_ ev_fork *w)	2980	ev_fork_start (EV_P_ ev_fork *w)
2671	{	2981	{
2672	if (expect_false (ev_is_active (w)))	2982	if (expect_false (ev_is_active (w)))
2673	return;	2983	return;
		2984
		2985	EV_FREQUENT_CHECK;
2674		2986
2675	ev_start (EV_A_ (W)w, ++forkcnt);	2987	ev_start (EV_A_ (W)w, ++forkcnt);
2676	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2988	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2677	forks [forkcnt - 1] = w;	2989	forks [forkcnt - 1] = w;
		2990
		2991	EV_FREQUENT_CHECK;
2678	}	2992	}
2679		2993
2680	void	2994	void
2681	ev_fork_stop (EV_P_ ev_fork *w)	2995	ev_fork_stop (EV_P_ ev_fork *w)
2682	{	2996	{
2683	clear_pending (EV_A_ (W)w);	2997	clear_pending (EV_A_ (W)w);
2684	if (expect_false (!ev_is_active (w)))	2998	if (expect_false (!ev_is_active (w)))
2685	return;	2999	return;
2686		3000
		3001	EV_FREQUENT_CHECK;
		3002
2687	{	3003	{
2688	int active = ev_active (w);	3004	int active = ev_active (w);
2689		3005
2690	forks [active - 1] = forks [--forkcnt];	3006	forks [active - 1] = forks [--forkcnt];
2691	ev_active (forks [active - 1]) = active;	3007	ev_active (forks [active - 1]) = active;
2692	}	3008	}
2693		3009
2694	ev_stop (EV_A_ (W)w);	3010	ev_stop (EV_A_ (W)w);
		3011
		3012	EV_FREQUENT_CHECK;
2695	}	3013	}
2696	#endif	3014	#endif
2697		3015
2698	#if EV_ASYNC_ENABLE	3016	#if EV_ASYNC_ENABLE
2699	void	3017	void
…		…
2701	{	3019	{
2702	if (expect_false (ev_is_active (w)))	3020	if (expect_false (ev_is_active (w)))
2703	return;	3021	return;
2704		3022
2705	evpipe_init (EV_A);	3023	evpipe_init (EV_A);
		3024
		3025	EV_FREQUENT_CHECK;
2706		3026
2707	ev_start (EV_A_ (W)w, ++asynccnt);	3027	ev_start (EV_A_ (W)w, ++asynccnt);
2708	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3028	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2709	asyncs [asynccnt - 1] = w;	3029	asyncs [asynccnt - 1] = w;
		3030
		3031	EV_FREQUENT_CHECK;
2710	}	3032	}
2711		3033
2712	void	3034	void
2713	ev_async_stop (EV_P_ ev_async *w)	3035	ev_async_stop (EV_P_ ev_async *w)
2714	{	3036	{
2715	clear_pending (EV_A_ (W)w);	3037	clear_pending (EV_A_ (W)w);
2716	if (expect_false (!ev_is_active (w)))	3038	if (expect_false (!ev_is_active (w)))
2717	return;	3039	return;
2718		3040
		3041	EV_FREQUENT_CHECK;
		3042
2719	{	3043	{
2720	int active = ev_active (w);	3044	int active = ev_active (w);
2721		3045
2722	asyncs [active - 1] = asyncs [--asynccnt];	3046	asyncs [active - 1] = asyncs [--asynccnt];
2723	ev_active (asyncs [active - 1]) = active;	3047	ev_active (asyncs [active - 1]) = active;
2724	}	3048	}
2725		3049
2726	ev_stop (EV_A_ (W)w);	3050	ev_stop (EV_A_ (W)w);
		3051
		3052	EV_FREQUENT_CHECK;
2727	}	3053	}
2728		3054
2729	void	3055	void
2730	ev_async_send (EV_P_ ev_async *w)	3056	ev_async_send (EV_P_ ev_async *w)
2731	{	3057	{
…		…
2748	once_cb (EV_P_ struct ev_once *once, int revents)	3074	once_cb (EV_P_ struct ev_once *once, int revents)
2749	{	3075	{
2750	void (*cb)(int revents, void *arg) = once->cb;	3076	void (*cb)(int revents, void *arg) = once->cb;
2751	void *arg = once->arg;	3077	void *arg = once->arg;
2752		3078
2753	ev_io_stop (EV_A_ &once->io);	3079	ev_io_stop (EV_A_ &once->io);
2754	ev_timer_stop (EV_A_ &once->to);	3080	ev_timer_stop (EV_A_ &once->to);
2755	ev_free (once);	3081	ev_free (once);
2756		3082
2757	cb (revents, arg);	3083	cb (revents, arg);
2758	}	3084	}
2759		3085
2760	static void	3086	static void
2761	once_cb_io (EV_P_ ev_io *w, int revents)	3087	once_cb_io (EV_P_ ev_io *w, int revents)
2762	{	3088	{
2763	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3089	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3090
		3091	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2764	}	3092	}
2765		3093
2766	static void	3094	static void
2767	once_cb_to (EV_P_ ev_timer *w, int revents)	3095	once_cb_to (EV_P_ ev_timer *w, int revents)
2768	{	3096	{
2769	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3097	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3098
		3099	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2770	}	3100	}
2771		3101
2772	void	3102	void
2773	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3103	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2774	{	3104	{

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