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Comparing libev/ev.c (file contents):
Revision 1.241 by root, Fri May 9 13:57:00 2008 UTC vs.
Revision 1.275 by root, Fri Dec 12 20:35:21 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
		279	#ifndef EV_USE_4HEAP
		280	# define EV_USE_4HEAP !EV_MINIMAL
		281	#endif
		282
		283	#ifndef EV_HEAP_CACHE_AT
		284	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		285	#endif
		286
240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
241		288
242	#ifndef CLOCK_MONOTONIC	289	#ifndef CLOCK_MONOTONIC
243	# undef EV_USE_MONOTONIC	290	# undef EV_USE_MONOTONIC
244	# define EV_USE_MONOTONIC 0	291	# define EV_USE_MONOTONIC 0
…		…
259	# include <sys/select.h>	306	# include <sys/select.h>
260	# endif	307	# endif
261	#endif	308	#endif
262		309
263	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
264	# 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
265	#endif	319	#endif
266		320
267	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
268	# 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
269	#endif	332	#endif
270		333
271	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
272	/* 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 */
273	# include <stdint.h>	336	# include <stdint.h>
…		…
279	}	342	}
280	# endif	343	# endif
281	#endif	344	#endif
282		345
283	/**/	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
284		353
285	/*	354	/*
286	* This is used to avoid floating point rounding problems.	355	* This is used to avoid floating point rounding problems.
287	* It is added to ev_rt_now when scheduling periodics	356	* It is added to ev_rt_now when scheduling periodics
288	* to ensure progress, time-wise, even when rounding	357	* to ensure progress, time-wise, even when rounding
…		…
349	{	418	{
350	syserr_cb = cb;	419	syserr_cb = cb;
351	}	420	}
352		421
353	static void noinline	422	static void noinline
354	syserr (const char *msg)	423	ev_syserr (const char *msg)
355	{	424	{
356	if (!msg)	425	if (!msg)
357	msg = "(libev) system error";	426	msg = "(libev) system error";
358		427
359	if (syserr_cb)	428	if (syserr_cb)
…		…
410	typedef struct	479	typedef struct
411	{	480	{
412	WL head;	481	WL head;
413	unsigned char events;	482	unsigned char events;
414	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
415	#if EV_SELECT_IS_WINSOCKET	489	#if EV_SELECT_IS_WINSOCKET
416	SOCKET handle;	490	SOCKET handle;
417	#endif	491	#endif
418	} ANFD;	492	} ANFD;
419		493
…		…
432	#endif	506	#endif
433		507
434	/* Heap Entry */	508	/* Heap Entry */
435	#if EV_HEAP_CACHE_AT	509	#if EV_HEAP_CACHE_AT
436	typedef struct {	510	typedef struct {
		511	ev_tstamp at;
437	WT w;	512	WT w;
438	ev_tstamp at;
439	} ANHE;	513	} ANHE;
440		514
441	#define ANHE_w(he) (he) /* access watcher, read-write */	515	#define ANHE_w(he) (he).w /* access watcher, read-write */
442	#define ANHE_at(he) (he)->at /* acces cahced at, read-only */	516	#define ANHE_at(he) (he).at /* access cached at, read-only */
443	#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 */
444	#else	518	#else
445	typedef WT ANHE;	519	typedef WT ANHE;
446		520
447	#define ANHE_w(he) (he)	521	#define ANHE_w(he) (he)
448	#define ANHE_at(he) (he)->at	522	#define ANHE_at(he) (he)->at
449	#define ANHE_at_set(he)	523	#define ANHE_at_cache(he)
450	#endif	524	#endif
451		525
452	#if EV_MULTIPLICITY	526	#if EV_MULTIPLICITY
453		527
454	struct ev_loop	528	struct ev_loop
…		…
532	struct timeval tv;	606	struct timeval tv;
533		607
534	tv.tv_sec = (time_t)delay;	608	tv.tv_sec = (time_t)delay;
535	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	609	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
536		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 */
537	select (0, 0, 0, 0, &tv);	614	select (0, 0, 0, 0, &tv);
538	#endif	615	#endif
539	}	616	}
540	}	617	}
541		618
…		…
568	array_realloc (int elem, void *base, int *cur, int cnt)	645	array_realloc (int elem, void *base, int *cur, int cnt)
569	{	646	{
570	*cur = array_nextsize (elem, *cur, cnt);	647	*cur = array_nextsize (elem, *cur, cnt);
571	return ev_realloc (base, elem * *cur);	648	return ev_realloc (base, elem * *cur);
572	}	649	}
		650
		651	#define array_init_zero(base,count) \
		652	memset ((void *)(base), 0, sizeof (*(base)) * (count))
573		653
574	#define array_needsize(type,base,cur,cnt,init) \	654	#define array_needsize(type,base,cur,cnt,init) \
575	if (expect_false ((cnt) > (cur))) \	655	if (expect_false ((cnt) > (cur))) \
576	{ \	656	{ \
577	int ocur_ = (cur); \	657	int ocur_ = (cur); \
…		…
621	ev_feed_event (EV_A_ events [i], type);	701	ev_feed_event (EV_A_ events [i], type);
622	}	702	}
623		703
624	/*****************************************************************************/	704	/*****************************************************************************/
625		705
626	void inline_size
627	anfds_init (ANFD *base, int count)
628	{
629	while (count--)
630	{
631	base->head = 0;
632	base->events = EV_NONE;
633	base->reify = 0;
634
635	++base;
636	}
637	}
638
639	void inline_speed	706	void inline_speed
640	fd_event (EV_P_ int fd, int revents)	707	fd_event (EV_P_ int fd, int revents)
641	{	708	{
642	ANFD *anfd = anfds + fd;	709	ANFD *anfd = anfds + fd;
643	ev_io *w;	710	ev_io *w;
…		…
675	events |= (unsigned char)w->events;	742	events |= (unsigned char)w->events;
676		743
677	#if EV_SELECT_IS_WINSOCKET	744	#if EV_SELECT_IS_WINSOCKET
678	if (events)	745	if (events)
679	{	746	{
680	unsigned long argp;	747	unsigned long arg;
681	#ifdef EV_FD_TO_WIN32_HANDLE	748	#ifdef EV_FD_TO_WIN32_HANDLE
682	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	749	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
683	#else	750	#else
684	anfd->handle = _get_osfhandle (fd);	751	anfd->handle = _get_osfhandle (fd);
685	#endif	752	#endif
686	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));
687	}	754	}
688	#endif	755	#endif
689		756
690	{	757	{
691	unsigned char o_events = anfd->events;	758	unsigned char o_events = anfd->events;
…		…
744	{	811	{
745	int fd;	812	int fd;
746		813
747	for (fd = 0; fd < anfdmax; ++fd)	814	for (fd = 0; fd < anfdmax; ++fd)
748	if (anfds [fd].events)	815	if (anfds [fd].events)
749	if (!fd_valid (fd) == -1 && errno == EBADF)	816	if (!fd_valid (fd) && errno == EBADF)
750	fd_kill (EV_A_ fd);	817	fd_kill (EV_A_ fd);
751	}	818	}
752		819
753	/* 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 */
754	static void noinline	821	static void noinline
…		…
772		839
773	for (fd = 0; fd < anfdmax; ++fd)	840	for (fd = 0; fd < anfdmax; ++fd)
774	if (anfds [fd].events)	841	if (anfds [fd].events)
775	{	842	{
776	anfds [fd].events = 0;	843	anfds [fd].events = 0;
		844	anfds [fd].emask = 0;
777	fd_change (EV_A_ fd, EV_IOFDSET | 1);	845	fd_change (EV_A_ fd, EV_IOFDSET | 1);
778	}	846	}
779	}	847	}
780		848
781	/*****************************************************************************/	849	/*****************************************************************************/
…		…
790	* at the moment we allow libev the luxury of two heaps,	858	* at the moment we allow libev the luxury of two heaps,
791	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap	859	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
792	* which is more cache-efficient.	860	* which is more cache-efficient.
793	* the difference is about 5% with 50000+ watchers.	861	* the difference is about 5% with 50000+ watchers.
794	*/	862	*/
795	#define EV_USE_4HEAP !EV_MINIMAL
796	#if EV_USE_4HEAP	863	#if EV_USE_4HEAP
797		864
798	#define DHEAP 4	865	#define DHEAP 4
799	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	866	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
800		867	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
801	/* towards the root */	868	#define UPHEAP_DONE(p,k) ((p) == (k))
802	void inline_speed
803	upheap (ANHE *heap, int k)
804	{
805	ANHE he = heap [k];
806
807	for (;;)
808	{
809	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
810
811	if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
812	break;
813
814	heap [k] = heap [p];
815	ev_active (ANHE_w (heap [k])) = k;
816	k = p;
817	}
818
819	ev_active (ANHE_w (he)) = k;
820	heap [k] = he;
821	}
822		869
823	/* away from the root */	870	/* away from the root */
824	void inline_speed	871	void inline_speed
825	downheap (ANHE *heap, int N, int k)	872	downheap (ANHE *heap, int N, int k)
826	{	873	{
…		…
829		876
830	for (;;)	877	for (;;)
831	{	878	{
832	ev_tstamp minat;	879	ev_tstamp minat;
833	ANHE *minpos;	880	ANHE *minpos;
834	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0;	881	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
835		882
836	// find minimum child	883	/* find minimum child */
837	if (expect_true (pos + DHEAP - 1 < E))	884	if (expect_true (pos + DHEAP - 1 < E))
838	{	885	{
839	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	886	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
840	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));
841	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));
842	if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	889	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
843	}	890	}
844	else if (pos < E)	891	else if (pos < E)
845	{	892	{
846	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	893	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
847	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	894	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
…		…
852	break;	899	break;
853		900
854	if (ANHE_at (he) <= minat)	901	if (ANHE_at (he) <= minat)
855	break;	902	break;
856		903
		904	heap [k] = *minpos;
857	ev_active (ANHE_w (*minpos)) = k;	905	ev_active (ANHE_w (*minpos)) = k;
858	heap [k] = *minpos;
859		906
860	k = minpos - heap;	907	k = minpos - heap;
861	}	908	}
862		909
		910	heap [k] = he;
863	ev_active (ANHE_w (he)) = k;	911	ev_active (ANHE_w (he)) = k;
864	heap [k] = he;
865	}	912	}
866		913
867	#else // 4HEAP	914	#else /* 4HEAP */
868		915
869	#define HEAP0 1	916	#define HEAP0 1
870		917	#define HPARENT(k) ((k) >> 1)
871	/* towards the root */	918	#define UPHEAP_DONE(p,k) (!(p))
872	void inline_speed
873	upheap (ANHE *heap, int k)
874	{
875	ANHE he = heap [k];
876
877	for (;;)
878	{
879	int p = k >> 1;
880
881	/* maybe we could use a dummy element at heap [0]? */
882	if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
883	break;
884
885	heap [k] = heap [p];
886	ev_active (ANHE_w (heap [k])) = k;
887	k = p;
888	}
889
890	heap [k] = w;
891	ev_active (ANHE_w (heap [k])) = k;
892	}
893		919
894	/* away from the root */	920	/* away from the root */
895	void inline_speed	921	void inline_speed
896	downheap (ANHE *heap, int N, int k)	922	downheap (ANHE *heap, int N, int k)
897	{	923	{
…		…
899		925
900	for (;;)	926	for (;;)
901	{	927	{
902	int c = k << 1;	928	int c = k << 1;
903		929
904	if (c > N)	930	if (c > N + HEAP0 - 1)
905	break;	931	break;
906		932
907	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])
908	? 1 : 0;	934	? 1 : 0;
909		935
910	if (w->at <= ANHE_at (heap [c]))	936	if (ANHE_at (he) <= ANHE_at (heap [c]))
911	break;	937	break;
912		938
913	heap [k] = heap [c];	939	heap [k] = heap [c];
914	ev_active (ANHE_w (heap [k])) = k;	940	ev_active (ANHE_w (heap [k])) = k;
915		941
…		…
919	heap [k] = he;	945	heap [k] = he;
920	ev_active (ANHE_w (he)) = k;	946	ev_active (ANHE_w (he)) = k;
921	}	947	}
922	#endif	948	#endif
923		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
924	void inline_size	972	void inline_size
925	adjustheap (ANHE *heap, int N, int k)	973	adjustheap (ANHE *heap, int N, int k)
926	{	974	{
		975	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
927	upheap (heap, k);	976	upheap (heap, k);
		977	else
928	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);
929	}	991	}
930		992
931	/*****************************************************************************/	993	/*****************************************************************************/
932		994
933	typedef struct	995	typedef struct
…		…
939	static ANSIG *signals;	1001	static ANSIG *signals;
940	static int signalmax;	1002	static int signalmax;
941		1003
942	static EV_ATOMIC_T gotsig;	1004	static EV_ATOMIC_T gotsig;
943		1005
944	void inline_size
945	signals_init (ANSIG *base, int count)
946	{
947	while (count--)
948	{
949	base->head = 0;
950	base->gotsig = 0;
951
952	++base;
953	}
954	}
955
956	/*****************************************************************************/	1006	/*****************************************************************************/
957		1007
958	void inline_speed	1008	void inline_speed
959	fd_intern (int fd)	1009	fd_intern (int fd)
960	{	1010	{
961	#ifdef _WIN32	1011	#ifdef _WIN32
962	int arg = 1;	1012	unsigned long arg = 1;
963	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
964	#else	1014	#else
965	fcntl (fd, F_SETFD, FD_CLOEXEC);	1015	fcntl (fd, F_SETFD, FD_CLOEXEC);
966	fcntl (fd, F_SETFL, O_NONBLOCK);	1016	fcntl (fd, F_SETFL, O_NONBLOCK);
967	#endif	1017	#endif
…		…
981	}	1031	}
982	else	1032	else
983	#endif	1033	#endif
984	{	1034	{
985	while (pipe (evpipe))	1035	while (pipe (evpipe))
986	syserr ("(libev) error creating signal/async pipe");	1036	ev_syserr ("(libev) error creating signal/async pipe");
987		1037
988	fd_intern (evpipe [0]);	1038	fd_intern (evpipe [0]);
989	fd_intern (evpipe [1]);	1039	fd_intern (evpipe [1]);
990	ev_io_set (&pipeev, evpipe [0], EV_READ);	1040	ev_io_set (&pipeev, evpipe [0], EV_READ);
991	}	1041	}
…		…
1451		1501
1452	postfork = 0;	1502	postfork = 0;
1453	}	1503	}
1454		1504
1455	#if EV_MULTIPLICITY	1505	#if EV_MULTIPLICITY
		1506
1456	struct ev_loop *	1507	struct ev_loop *
1457	ev_loop_new (unsigned int flags)	1508	ev_loop_new (unsigned int flags)
1458	{	1509	{
1459	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));
1460		1511
…		…
1478	void	1529	void
1479	ev_loop_fork (EV_P)	1530	ev_loop_fork (EV_P)
1480	{	1531	{
1481	postfork = 1; /* must be in line with ev_default_fork */	1532	postfork = 1; /* must be in line with ev_default_fork */
1482	}	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)
1483	#endif	1630	# endif
		1631	#endif
		1632	}
		1633
		1634	#endif /* multiplicity */
1484		1635
1485	#if EV_MULTIPLICITY	1636	#if EV_MULTIPLICITY
1486	struct ev_loop *	1637	struct ev_loop *
1487	ev_default_loop_init (unsigned int flags)	1638	ev_default_loop_init (unsigned int flags)
1488	#else	1639	#else
…		…
1521	{	1672	{
1522	#if EV_MULTIPLICITY	1673	#if EV_MULTIPLICITY
1523	struct ev_loop *loop = ev_default_loop_ptr;	1674	struct ev_loop *loop = ev_default_loop_ptr;
1524	#endif	1675	#endif
1525		1676
		1677	ev_default_loop_ptr = 0;
		1678
1526	#ifndef _WIN32	1679	#ifndef _WIN32
1527	ev_ref (EV_A); /* child watcher */	1680	ev_ref (EV_A); /* child watcher */
1528	ev_signal_stop (EV_A_ &childev);	1681	ev_signal_stop (EV_A_ &childev);
1529	#endif	1682	#endif
1530		1683
…		…
1536	{	1689	{
1537	#if EV_MULTIPLICITY	1690	#if EV_MULTIPLICITY
1538	struct ev_loop *loop = ev_default_loop_ptr;	1691	struct ev_loop *loop = ev_default_loop_ptr;
1539	#endif	1692	#endif
1540		1693
1541	if (backend)
1542	postfork = 1; /* must be in line with ev_loop_fork */	1694	postfork = 1; /* must be in line with ev_loop_fork */
1543	}	1695	}
1544		1696
1545	/*****************************************************************************/	1697	/*****************************************************************************/
1546		1698
1547	void	1699	void
…		…
1564	{	1716	{
1565	/*assert (("non-pending watcher on pending list", p->w->pending));*/	1717	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1566		1718
1567	p->w->pending = 0;	1719	p->w->pending = 0;
1568	EV_CB_INVOKE (p->w, p->events);	1720	EV_CB_INVOKE (p->w, p->events);
		1721	EV_FREQUENT_CHECK;
1569	}	1722	}
1570	}	1723	}
1571	}	1724	}
1572		1725
1573	#if EV_IDLE_ENABLE	1726	#if EV_IDLE_ENABLE
…		…
1594	#endif	1747	#endif
1595		1748
1596	void inline_size	1749	void inline_size
1597	timers_reify (EV_P)	1750	timers_reify (EV_P)
1598	{	1751	{
		1752	EV_FREQUENT_CHECK;
		1753
1599	while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now)	1754	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1600	{	1755	{
1601	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);	1756	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
1602		1757
1603	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1758	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1604		1759
1605	/* first reschedule or stop timer */	1760	/* first reschedule or stop timer */
1606	if (w->repeat)	1761	if (w->repeat)
1607	{	1762	{
1608	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1609
1610	ev_at (w) += w->repeat;	1763	ev_at (w) += w->repeat;
1611	if (ev_at (w) < mn_now)	1764	if (ev_at (w) < mn_now)
1612	ev_at (w) = mn_now;	1765	ev_at (w) = mn_now;
1613		1766
		1767	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1768
		1769	ANHE_at_cache (timers [HEAP0]);
1614	downheap (timers, timercnt, HEAP0);	1770	downheap (timers, timercnt, HEAP0);
1615	}	1771	}
1616	else	1772	else
1617	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1773	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1618		1774
		1775	EV_FREQUENT_CHECK;
1619	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1776	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1620	}	1777	}
1621	}	1778	}
1622		1779
1623	#if EV_PERIODIC_ENABLE	1780	#if EV_PERIODIC_ENABLE
1624	void inline_size	1781	void inline_size
1625	periodics_reify (EV_P)	1782	periodics_reify (EV_P)
1626	{	1783	{
		1784	EV_FREQUENT_CHECK;
		1785
1627	while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now)	1786	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1628	{	1787	{
1629	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	1788	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
1630		1789
1631	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1790	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1632		1791
1633	/* first reschedule or stop timer */	1792	/* first reschedule or stop timer */
1634	if (w->reschedule_cb)	1793	if (w->reschedule_cb)
1635	{	1794	{
1636	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);	1795	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1796
1637	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));
		1798
		1799	ANHE_at_cache (periodics [HEAP0]);
1638	downheap (periodics, periodiccnt, 1);	1800	downheap (periodics, periodiccnt, HEAP0);
1639	}	1801	}
1640	else if (w->interval)	1802	else if (w->interval)
1641	{	1803	{
1642	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 */
1643	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;	1807	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1644	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));	1808	{
		1809	ev_at (w) += w->interval;
		1810
		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	}
		1817
		1818	ANHE_at_cache (periodics [HEAP0]);
1645	downheap (periodics, periodiccnt, HEAP0);	1819	downheap (periodics, periodiccnt, HEAP0);
1646	}	1820	}
1647	else	1821	else
1648	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1822	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1649		1823
		1824	EV_FREQUENT_CHECK;
1650	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1825	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1651	}	1826	}
1652	}	1827	}
1653		1828
1654	static void noinline	1829	static void noinline
…		…
1663		1838
1664	if (w->reschedule_cb)	1839	if (w->reschedule_cb)
1665	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1840	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1666	else if (w->interval)	1841	else if (w->interval)
1667	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;
1668	}
1669		1843
1670	/* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */	1844	ANHE_at_cache (periodics [i]);
1671	for (i = periodiccnt >> 1; --i; )	1845	}
		1846
1672	downheap (periodics, periodiccnt, i + HEAP0);	1847	reheap (periodics, periodiccnt);
1673	}	1848	}
1674	#endif	1849	#endif
1675		1850
1676	void inline_speed	1851	void inline_speed
1677	time_update (EV_P_ ev_tstamp max_block)	1852	time_update (EV_P_ ev_tstamp max_block)
…		…
1735	/* 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 */
1736	for (i = 0; i < timercnt; ++i)	1911	for (i = 0; i < timercnt; ++i)
1737	{	1912	{
1738	ANHE *he = timers + i + HEAP0;	1913	ANHE *he = timers + i + HEAP0;
1739	ANHE_w (*he)->at += ev_rt_now - mn_now;	1914	ANHE_w (*he)->at += ev_rt_now - mn_now;
1740	ANHE_at_set (*he);	1915	ANHE_at_cache (*he);
1741	}	1916	}
1742	}	1917	}
1743		1918
1744	mn_now = ev_rt_now;	1919	mn_now = ev_rt_now;
1745	}	1920	}
…		…
1755	ev_unref (EV_P)	1930	ev_unref (EV_P)
1756	{	1931	{
1757	--activecnt;	1932	--activecnt;
1758	}	1933	}
1759		1934
		1935	void
		1936	ev_now_update (EV_P)
		1937	{
		1938	time_update (EV_A_ 1e100);
		1939	}
		1940
1760	static int loop_done;	1941	static int loop_done;
1761		1942
1762	void	1943	void
1763	ev_loop (EV_P_ int flags)	1944	ev_loop (EV_P_ int flags)
1764	{	1945	{
…		…
1766		1947
1767	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 */
1768		1949
1769	do	1950	do
1770	{	1951	{
		1952	#if EV_VERIFY >= 2
		1953	ev_loop_verify (EV_A);
		1954	#endif
		1955
1771	#ifndef _WIN32	1956	#ifndef _WIN32
1772	if (expect_false (curpid)) /* penalise the forking check even more */	1957	if (expect_false (curpid)) /* penalise the forking check even more */
1773	if (expect_false (getpid () != curpid))	1958	if (expect_false (getpid () != curpid))
1774	{	1959	{
1775	curpid = getpid ();	1960	curpid = getpid ();
…		…
1969		2154
1970	if (expect_false (ev_is_active (w)))	2155	if (expect_false (ev_is_active (w)))
1971	return;	2156	return;
1972		2157
1973	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;
1974		2162
1975	ev_start (EV_A_ (W)w, 1);	2163	ev_start (EV_A_ (W)w, 1);
1976	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2164	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
1977	wlist_add (&anfds[fd].head, (WL)w);	2165	wlist_add (&anfds[fd].head, (WL)w);
1978		2166
1979	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);	2167	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1980	w->events &= ~EV_IOFDSET;	2168	w->events &= ~EV_IOFDSET;
		2169
		2170	EV_FREQUENT_CHECK;
1981	}	2171	}
1982		2172
1983	void noinline	2173	void noinline
1984	ev_io_stop (EV_P_ ev_io *w)	2174	ev_io_stop (EV_P_ ev_io *w)
1985	{	2175	{
1986	clear_pending (EV_A_ (W)w);	2176	clear_pending (EV_A_ (W)w);
1987	if (expect_false (!ev_is_active (w)))	2177	if (expect_false (!ev_is_active (w)))
1988	return;	2178	return;
1989		2179
1990	assert (("ev_io_start 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));
		2181
		2182	EV_FREQUENT_CHECK;
1991		2183
1992	wlist_del (&anfds[w->fd].head, (WL)w);	2184	wlist_del (&anfds[w->fd].head, (WL)w);
1993	ev_stop (EV_A_ (W)w);	2185	ev_stop (EV_A_ (W)w);
1994		2186
1995	fd_change (EV_A_ w->fd, 1);	2187	fd_change (EV_A_ w->fd, 1);
		2188
		2189	EV_FREQUENT_CHECK;
1996	}	2190	}
1997		2191
1998	void noinline	2192	void noinline
1999	ev_timer_start (EV_P_ ev_timer *w)	2193	ev_timer_start (EV_P_ ev_timer *w)
2000	{	2194	{
…		…
2003		2197
2004	ev_at (w) += mn_now;	2198	ev_at (w) += mn_now;
2005		2199
2006	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.));
2007		2201
		2202	EV_FREQUENT_CHECK;
		2203
		2204	++timercnt;
2008	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2205	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2009	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	2206	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2010	ANHE_w (timers [ev_active (w)]) = (WT)w;	2207	ANHE_w (timers [ev_active (w)]) = (WT)w;
2011	ANHE_at_set (timers [ev_active (w)]);	2208	ANHE_at_cache (timers [ev_active (w)]);
2012	upheap (timers, ev_active (w));	2209	upheap (timers, ev_active (w));
2013		2210
		2211	EV_FREQUENT_CHECK;
		2212
2014	/*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/	2213	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2015	}	2214	}
2016		2215
2017	void noinline	2216	void noinline
2018	ev_timer_stop (EV_P_ ev_timer *w)	2217	ev_timer_stop (EV_P_ ev_timer *w)
2019	{	2218	{
2020	clear_pending (EV_A_ (W)w);	2219	clear_pending (EV_A_ (W)w);
2021	if (expect_false (!ev_is_active (w)))	2220	if (expect_false (!ev_is_active (w)))
2022	return;	2221	return;
2023		2222
		2223	EV_FREQUENT_CHECK;
		2224
2024	{	2225	{
2025	int active = ev_active (w);	2226	int active = ev_active (w);
2026		2227
2027	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2228	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2028		2229
		2230	--timercnt;
		2231
2029	if (expect_true (active < timercnt + HEAP0 - 1))	2232	if (expect_true (active < timercnt + HEAP0))
2030	{	2233	{
2031	timers [active] = timers [timercnt + HEAP0 - 1];	2234	timers [active] = timers [timercnt + HEAP0];
2032	adjustheap (timers, timercnt, active);	2235	adjustheap (timers, timercnt, active);
2033	}	2236	}
2034
2035	--timercnt;
2036	}	2237	}
		2238
		2239	EV_FREQUENT_CHECK;
2037		2240
2038	ev_at (w) -= mn_now;	2241	ev_at (w) -= mn_now;
2039		2242
2040	ev_stop (EV_A_ (W)w);	2243	ev_stop (EV_A_ (W)w);
2041	}	2244	}
2042		2245
2043	void noinline	2246	void noinline
2044	ev_timer_again (EV_P_ ev_timer *w)	2247	ev_timer_again (EV_P_ ev_timer *w)
2045	{	2248	{
		2249	EV_FREQUENT_CHECK;
		2250
2046	if (ev_is_active (w))	2251	if (ev_is_active (w))
2047	{	2252	{
2048	if (w->repeat)	2253	if (w->repeat)
2049	{	2254	{
2050	ev_at (w) = mn_now + w->repeat;	2255	ev_at (w) = mn_now + w->repeat;
2051	ANHE_at_set (timers [ev_active (w)]);	2256	ANHE_at_cache (timers [ev_active (w)]);
2052	adjustheap (timers, timercnt, ev_active (w));	2257	adjustheap (timers, timercnt, ev_active (w));
2053	}	2258	}
2054	else	2259	else
2055	ev_timer_stop (EV_A_ w);	2260	ev_timer_stop (EV_A_ w);
2056	}	2261	}
2057	else if (w->repeat)	2262	else if (w->repeat)
2058	{	2263	{
2059	ev_at (w) = w->repeat;	2264	ev_at (w) = w->repeat;
2060	ev_timer_start (EV_A_ w);	2265	ev_timer_start (EV_A_ w);
2061	}	2266	}
		2267
		2268	EV_FREQUENT_CHECK;
2062	}	2269	}
2063		2270
2064	#if EV_PERIODIC_ENABLE	2271	#if EV_PERIODIC_ENABLE
2065	void noinline	2272	void noinline
2066	ev_periodic_start (EV_P_ ev_periodic *w)	2273	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2077	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;
2078	}	2285	}
2079	else	2286	else
2080	ev_at (w) = w->offset;	2287	ev_at (w) = w->offset;
2081		2288
		2289	EV_FREQUENT_CHECK;
		2290
		2291	++periodiccnt;
2082	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2292	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2083	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	2293	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2084	ANHE_w (periodics [ev_active (w)]) = (WT)w;	2294	ANHE_w (periodics [ev_active (w)]) = (WT)w;
		2295	ANHE_at_cache (periodics [ev_active (w)]);
2085	upheap (periodics, ev_active (w));	2296	upheap (periodics, ev_active (w));
		2297
		2298	EV_FREQUENT_CHECK;
2086		2299
2087	/*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));*/
2088	}	2301	}
2089		2302
2090	void noinline	2303	void noinline
…		…
2092	{	2305	{
2093	clear_pending (EV_A_ (W)w);	2306	clear_pending (EV_A_ (W)w);
2094	if (expect_false (!ev_is_active (w)))	2307	if (expect_false (!ev_is_active (w)))
2095	return;	2308	return;
2096		2309
		2310	EV_FREQUENT_CHECK;
		2311
2097	{	2312	{
2098	int active = ev_active (w);	2313	int active = ev_active (w);
2099		2314
2100	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2315	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2101		2316
		2317	--periodiccnt;
		2318
2102	if (expect_true (active < periodiccnt + HEAP0 - 1))	2319	if (expect_true (active < periodiccnt + HEAP0))
2103	{	2320	{
2104	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2321	periodics [active] = periodics [periodiccnt + HEAP0];
2105	adjustheap (periodics, periodiccnt, active);	2322	adjustheap (periodics, periodiccnt, active);
2106	}	2323	}
2107
2108	--periodiccnt;
2109	}	2324	}
		2325
		2326	EV_FREQUENT_CHECK;
2110		2327
2111	ev_stop (EV_A_ (W)w);	2328	ev_stop (EV_A_ (W)w);
2112	}	2329	}
2113		2330
2114	void noinline	2331	void noinline
…		…
2134	return;	2351	return;
2135		2352
2136	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));
2137		2354
2138	evpipe_init (EV_A);	2355	evpipe_init (EV_A);
		2356
		2357	EV_FREQUENT_CHECK;
2139		2358
2140	{	2359	{
2141	#ifndef _WIN32	2360	#ifndef _WIN32
2142	sigset_t full, prev;	2361	sigset_t full, prev;
2143	sigfillset (&full);	2362	sigfillset (&full);
2144	sigprocmask (SIG_SETMASK, &full, &prev);	2363	sigprocmask (SIG_SETMASK, &full, &prev);
2145	#endif	2364	#endif
2146		2365
2147	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2366	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2148		2367
2149	#ifndef _WIN32	2368	#ifndef _WIN32
2150	sigprocmask (SIG_SETMASK, &prev, 0);	2369	sigprocmask (SIG_SETMASK, &prev, 0);
2151	#endif	2370	#endif
2152	}	2371	}
…		…
2164	sigfillset (&sa.sa_mask);	2383	sigfillset (&sa.sa_mask);
2165	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 */
2166	sigaction (w->signum, &sa, 0);	2385	sigaction (w->signum, &sa, 0);
2167	#endif	2386	#endif
2168	}	2387	}
		2388
		2389	EV_FREQUENT_CHECK;
2169	}	2390	}
2170		2391
2171	void noinline	2392	void noinline
2172	ev_signal_stop (EV_P_ ev_signal *w)	2393	ev_signal_stop (EV_P_ ev_signal *w)
2173	{	2394	{
2174	clear_pending (EV_A_ (W)w);	2395	clear_pending (EV_A_ (W)w);
2175	if (expect_false (!ev_is_active (w)))	2396	if (expect_false (!ev_is_active (w)))
2176	return;	2397	return;
2177		2398
		2399	EV_FREQUENT_CHECK;
		2400
2178	wlist_del (&signals [w->signum - 1].head, (WL)w);	2401	wlist_del (&signals [w->signum - 1].head, (WL)w);
2179	ev_stop (EV_A_ (W)w);	2402	ev_stop (EV_A_ (W)w);
2180		2403
2181	if (!signals [w->signum - 1].head)	2404	if (!signals [w->signum - 1].head)
2182	signal (w->signum, SIG_DFL);	2405	signal (w->signum, SIG_DFL);
		2406
		2407	EV_FREQUENT_CHECK;
2183	}	2408	}
2184		2409
2185	void	2410	void
2186	ev_child_start (EV_P_ ev_child *w)	2411	ev_child_start (EV_P_ ev_child *w)
2187	{	2412	{
…		…
2189	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));
2190	#endif	2415	#endif
2191	if (expect_false (ev_is_active (w)))	2416	if (expect_false (ev_is_active (w)))
2192	return;	2417	return;
2193		2418
		2419	EV_FREQUENT_CHECK;
		2420
2194	ev_start (EV_A_ (W)w, 1);	2421	ev_start (EV_A_ (W)w, 1);
2195	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;
2196	}	2425	}
2197		2426
2198	void	2427	void
2199	ev_child_stop (EV_P_ ev_child *w)	2428	ev_child_stop (EV_P_ ev_child *w)
2200	{	2429	{
2201	clear_pending (EV_A_ (W)w);	2430	clear_pending (EV_A_ (W)w);
2202	if (expect_false (!ev_is_active (w)))	2431	if (expect_false (!ev_is_active (w)))
2203	return;	2432	return;
2204		2433
		2434	EV_FREQUENT_CHECK;
		2435
2205	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2436	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2206	ev_stop (EV_A_ (W)w);	2437	ev_stop (EV_A_ (W)w);
		2438
		2439	EV_FREQUENT_CHECK;
2207	}	2440	}
2208		2441
2209	#if EV_STAT_ENABLE	2442	#if EV_STAT_ENABLE
2210		2443
2211	# ifdef _WIN32	2444	# ifdef _WIN32
2212	# undef lstat	2445	# undef lstat
2213	# define lstat(a,b) _stati64 (a,b)	2446	# define lstat(a,b) _stati64 (a,b)
2214	# endif	2447	# endif
2215		2448
2216	#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 */
2217	#define MIN_STAT_INTERVAL 0.1074891	2451	#define MIN_STAT_INTERVAL 0.1074891
2218		2452
2219	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);
2220		2454
2221	#if EV_USE_INOTIFY	2455	#if EV_USE_INOTIFY
2222	# define EV_INOTIFY_BUFSIZE 8192	2456	# define EV_INOTIFY_BUFSIZE 8192
…		…
2226	{	2460	{
2227	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);
2228		2462
2229	if (w->wd < 0)	2463	if (w->wd < 0)
2230	{	2464	{
		2465	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2231	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 */
2232		2467
2233	/* monitor some parent directory for speedup hints */	2468	/* monitor some parent directory for speedup hints */
2234	/* note that exceeding the hardcoded limit is not a correctness issue, */	2469	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2235	/* but an efficiency issue only */	2470	/* but an efficiency issue only */
2236	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2471	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2237	{	2472	{
2238	char path [4096];	2473	char path [4096];
2239	strcpy (path, w->path);	2474	strcpy (path, w->path);
…		…
2243	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF	2478	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2244	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);	2479	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2245		2480
2246	char *pend = strrchr (path, '/');	2481	char *pend = strrchr (path, '/');
2247		2482
2248	if (!pend)	2483	if (!pend || pend == path)
2249	break; /* whoops, no '/', complain to your admin */	2484	break;
2250		2485
2251	*pend = 0;	2486	*pend = 0;
2252	w->wd = inotify_add_watch (fs_fd, path, mask);	2487	w->wd = inotify_add_watch (fs_fd, path, mask);
2253	}	2488	}
2254	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2489	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2255	}	2490	}
2256	}	2491	}
2257	else
2258	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2259		2492
2260	if (w->wd >= 0)	2493	if (w->wd >= 0)
		2494	{
2261	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	}
2262	}	2514	}
2263		2515
2264	static void noinline	2516	static void noinline
2265	infy_del (EV_P_ ev_stat *w)	2517	infy_del (EV_P_ ev_stat *w)
2266	{	2518	{
…		…
2280		2532
2281	static void noinline	2533	static void noinline
2282	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)
2283	{	2535	{
2284	if (slot < 0)	2536	if (slot < 0)
2285	/* overflow, need to check for all hahs slots */	2537	/* overflow, need to check for all hash slots */
2286	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2538	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2287	infy_wd (EV_A_ slot, wd, ev);	2539	infy_wd (EV_A_ slot, wd, ev);
2288	else	2540	else
2289	{	2541	{
2290	WL w_;	2542	WL w_;
…		…
2296		2548
2297	if (w->wd == wd || wd == -1)	2549	if (w->wd == wd || wd == -1)
2298	{	2550	{
2299	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	2551	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2300	{	2552	{
		2553	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2301	w->wd = -1;	2554	w->wd = -1;
2302	infy_add (EV_A_ w); /* re-add, no matter what */	2555	infy_add (EV_A_ w); /* re-add, no matter what */
2303	}	2556	}
2304		2557
2305	stat_timer_cb (EV_A_ &w->timer, 0);	2558	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2319	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)
2320	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2573	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2321	}	2574	}
2322		2575
2323	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
2324	infy_init (EV_P)	2600	infy_init (EV_P)
2325	{	2601	{
2326	if (fs_fd != -2)	2602	if (fs_fd != -2)
2327	return;	2603	return;
		2604
		2605	fs_fd = -1;
		2606
		2607	check_2625 (EV_A);
2328		2608
2329	fs_fd = inotify_init ();	2609	fs_fd = inotify_init ();
2330		2610
2331	if (fs_fd >= 0)	2611	if (fs_fd >= 0)
2332	{	2612	{
…		…
2360	w->wd = -1;	2640	w->wd = -1;
2361		2641
2362	if (fs_fd >= 0)	2642	if (fs_fd >= 0)
2363	infy_add (EV_A_ w); /* re-add, no matter what */	2643	infy_add (EV_A_ w); /* re-add, no matter what */
2364	else	2644	else
2365	ev_timer_start (EV_A_ &w->timer);	2645	ev_timer_again (EV_A_ &w->timer);
2366	}	2646	}
2367
2368	}	2647	}
2369	}	2648	}
2370		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)
2371	#endif	2656	#endif
2372		2657
2373	void	2658	void
2374	ev_stat_stat (EV_P_ ev_stat *w)	2659	ev_stat_stat (EV_P_ ev_stat *w)
2375	{	2660	{
…		…
2402	|| w->prev.st_atime != w->attr.st_atime	2687	|| w->prev.st_atime != w->attr.st_atime
2403	|| w->prev.st_mtime != w->attr.st_mtime	2688	|| w->prev.st_mtime != w->attr.st_mtime
2404	|| w->prev.st_ctime != w->attr.st_ctime	2689	|| w->prev.st_ctime != w->attr.st_ctime
2405	) {	2690	) {
2406	#if EV_USE_INOTIFY	2691	#if EV_USE_INOTIFY
		2692	if (fs_fd >= 0)
		2693	{
2407	infy_del (EV_A_ w);	2694	infy_del (EV_A_ w);
2408	infy_add (EV_A_ w);	2695	infy_add (EV_A_ w);
2409	ev_stat_stat (EV_A_ w); /* avoid race... */	2696	ev_stat_stat (EV_A_ w); /* avoid race... */
		2697	}
2410	#endif	2698	#endif
2411		2699
2412	ev_feed_event (EV_A_ w, EV_STAT);	2700	ev_feed_event (EV_A_ w, EV_STAT);
2413	}	2701	}
2414	}	2702	}
…		…
2417	ev_stat_start (EV_P_ ev_stat *w)	2705	ev_stat_start (EV_P_ ev_stat *w)
2418	{	2706	{
2419	if (expect_false (ev_is_active (w)))	2707	if (expect_false (ev_is_active (w)))
2420	return;	2708	return;
2421		2709
2422	/* since we use memcmp, we need to clear any padding data etc. */
2423	memset (&w->prev, 0, sizeof (ev_statdata));
2424	memset (&w->attr, 0, sizeof (ev_statdata));
2425
2426	ev_stat_stat (EV_A_ w);	2710	ev_stat_stat (EV_A_ w);
2427		2711
		2712	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2428	if (w->interval < MIN_STAT_INTERVAL)	2713	w->interval = MIN_STAT_INTERVAL;
2429	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2430		2714
2431	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);
2432	ev_set_priority (&w->timer, ev_priority (w));	2716	ev_set_priority (&w->timer, ev_priority (w));
2433		2717
2434	#if EV_USE_INOTIFY	2718	#if EV_USE_INOTIFY
2435	infy_init (EV_A);	2719	infy_init (EV_A);
2436		2720
2437	if (fs_fd >= 0)	2721	if (fs_fd >= 0)
2438	infy_add (EV_A_ w);	2722	infy_add (EV_A_ w);
2439	else	2723	else
2440	#endif	2724	#endif
2441	ev_timer_start (EV_A_ &w->timer);	2725	ev_timer_again (EV_A_ &w->timer);
2442		2726
2443	ev_start (EV_A_ (W)w, 1);	2727	ev_start (EV_A_ (W)w, 1);
		2728
		2729	EV_FREQUENT_CHECK;
2444	}	2730	}
2445		2731
2446	void	2732	void
2447	ev_stat_stop (EV_P_ ev_stat *w)	2733	ev_stat_stop (EV_P_ ev_stat *w)
2448	{	2734	{
2449	clear_pending (EV_A_ (W)w);	2735	clear_pending (EV_A_ (W)w);
2450	if (expect_false (!ev_is_active (w)))	2736	if (expect_false (!ev_is_active (w)))
2451	return;	2737	return;
2452		2738
		2739	EV_FREQUENT_CHECK;
		2740
2453	#if EV_USE_INOTIFY	2741	#if EV_USE_INOTIFY
2454	infy_del (EV_A_ w);	2742	infy_del (EV_A_ w);
2455	#endif	2743	#endif
2456	ev_timer_stop (EV_A_ &w->timer);	2744	ev_timer_stop (EV_A_ &w->timer);
2457		2745
2458	ev_stop (EV_A_ (W)w);	2746	ev_stop (EV_A_ (W)w);
		2747
		2748	EV_FREQUENT_CHECK;
2459	}	2749	}
2460	#endif	2750	#endif
2461		2751
2462	#if EV_IDLE_ENABLE	2752	#if EV_IDLE_ENABLE
2463	void	2753	void
…		…
2465	{	2755	{
2466	if (expect_false (ev_is_active (w)))	2756	if (expect_false (ev_is_active (w)))
2467	return;	2757	return;
2468		2758
2469	pri_adjust (EV_A_ (W)w);	2759	pri_adjust (EV_A_ (W)w);
		2760
		2761	EV_FREQUENT_CHECK;
2470		2762
2471	{	2763	{
2472	int active = ++idlecnt [ABSPRI (w)];	2764	int active = ++idlecnt [ABSPRI (w)];
2473		2765
2474	++idleall;	2766	++idleall;
2475	ev_start (EV_A_ (W)w, active);	2767	ev_start (EV_A_ (W)w, active);
2476		2768
2477	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);
2478	idles [ABSPRI (w)][active - 1] = w;	2770	idles [ABSPRI (w)][active - 1] = w;
2479	}	2771	}
		2772
		2773	EV_FREQUENT_CHECK;
2480	}	2774	}
2481		2775
2482	void	2776	void
2483	ev_idle_stop (EV_P_ ev_idle *w)	2777	ev_idle_stop (EV_P_ ev_idle *w)
2484	{	2778	{
2485	clear_pending (EV_A_ (W)w);	2779	clear_pending (EV_A_ (W)w);
2486	if (expect_false (!ev_is_active (w)))	2780	if (expect_false (!ev_is_active (w)))
2487	return;	2781	return;
2488		2782
		2783	EV_FREQUENT_CHECK;
		2784
2489	{	2785	{
2490	int active = ev_active (w);	2786	int active = ev_active (w);
2491		2787
2492	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2788	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2493	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2789	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2494		2790
2495	ev_stop (EV_A_ (W)w);	2791	ev_stop (EV_A_ (W)w);
2496	--idleall;	2792	--idleall;
2497	}	2793	}
		2794
		2795	EV_FREQUENT_CHECK;
2498	}	2796	}
2499	#endif	2797	#endif
2500		2798
2501	void	2799	void
2502	ev_prepare_start (EV_P_ ev_prepare *w)	2800	ev_prepare_start (EV_P_ ev_prepare *w)
2503	{	2801	{
2504	if (expect_false (ev_is_active (w)))	2802	if (expect_false (ev_is_active (w)))
2505	return;	2803	return;
		2804
		2805	EV_FREQUENT_CHECK;
2506		2806
2507	ev_start (EV_A_ (W)w, ++preparecnt);	2807	ev_start (EV_A_ (W)w, ++preparecnt);
2508	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2808	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2509	prepares [preparecnt - 1] = w;	2809	prepares [preparecnt - 1] = w;
		2810
		2811	EV_FREQUENT_CHECK;
2510	}	2812	}
2511		2813
2512	void	2814	void
2513	ev_prepare_stop (EV_P_ ev_prepare *w)	2815	ev_prepare_stop (EV_P_ ev_prepare *w)
2514	{	2816	{
2515	clear_pending (EV_A_ (W)w);	2817	clear_pending (EV_A_ (W)w);
2516	if (expect_false (!ev_is_active (w)))	2818	if (expect_false (!ev_is_active (w)))
2517	return;	2819	return;
2518		2820
		2821	EV_FREQUENT_CHECK;
		2822
2519	{	2823	{
2520	int active = ev_active (w);	2824	int active = ev_active (w);
2521		2825
2522	prepares [active - 1] = prepares [--preparecnt];	2826	prepares [active - 1] = prepares [--preparecnt];
2523	ev_active (prepares [active - 1]) = active;	2827	ev_active (prepares [active - 1]) = active;
2524	}	2828	}
2525		2829
2526	ev_stop (EV_A_ (W)w);	2830	ev_stop (EV_A_ (W)w);
		2831
		2832	EV_FREQUENT_CHECK;
2527	}	2833	}
2528		2834
2529	void	2835	void
2530	ev_check_start (EV_P_ ev_check *w)	2836	ev_check_start (EV_P_ ev_check *w)
2531	{	2837	{
2532	if (expect_false (ev_is_active (w)))	2838	if (expect_false (ev_is_active (w)))
2533	return;	2839	return;
		2840
		2841	EV_FREQUENT_CHECK;
2534		2842
2535	ev_start (EV_A_ (W)w, ++checkcnt);	2843	ev_start (EV_A_ (W)w, ++checkcnt);
2536	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2844	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2537	checks [checkcnt - 1] = w;	2845	checks [checkcnt - 1] = w;
		2846
		2847	EV_FREQUENT_CHECK;
2538	}	2848	}
2539		2849
2540	void	2850	void
2541	ev_check_stop (EV_P_ ev_check *w)	2851	ev_check_stop (EV_P_ ev_check *w)
2542	{	2852	{
2543	clear_pending (EV_A_ (W)w);	2853	clear_pending (EV_A_ (W)w);
2544	if (expect_false (!ev_is_active (w)))	2854	if (expect_false (!ev_is_active (w)))
2545	return;	2855	return;
2546		2856
		2857	EV_FREQUENT_CHECK;
		2858
2547	{	2859	{
2548	int active = ev_active (w);	2860	int active = ev_active (w);
2549		2861
2550	checks [active - 1] = checks [--checkcnt];	2862	checks [active - 1] = checks [--checkcnt];
2551	ev_active (checks [active - 1]) = active;	2863	ev_active (checks [active - 1]) = active;
2552	}	2864	}
2553		2865
2554	ev_stop (EV_A_ (W)w);	2866	ev_stop (EV_A_ (W)w);
		2867
		2868	EV_FREQUENT_CHECK;
2555	}	2869	}
2556		2870
2557	#if EV_EMBED_ENABLE	2871	#if EV_EMBED_ENABLE
2558	void noinline	2872	void noinline
2559	ev_embed_sweep (EV_P_ ev_embed *w)	2873	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2586	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2900	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2587	}	2901	}
2588	}	2902	}
2589	}	2903	}
2590		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	{
		2911	struct ev_loop *loop = w->other;
		2912
		2913	ev_loop_fork (EV_A);
		2914	}
		2915	}
		2916
2591	#if 0	2917	#if 0
2592	static void	2918	static void
2593	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2919	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2594	{	2920	{
2595	ev_idle_stop (EV_A_ idle);	2921	ev_idle_stop (EV_A_ idle);
…		…
2606	struct ev_loop *loop = w->other;	2932	struct ev_loop *loop = w->other;
2607	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2933	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2608	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2934	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2609	}	2935	}
2610		2936
		2937	EV_FREQUENT_CHECK;
		2938
2611	ev_set_priority (&w->io, ev_priority (w));	2939	ev_set_priority (&w->io, ev_priority (w));
2612	ev_io_start (EV_A_ &w->io);	2940	ev_io_start (EV_A_ &w->io);
2613		2941
2614	ev_prepare_init (&w->prepare, embed_prepare_cb);	2942	ev_prepare_init (&w->prepare, embed_prepare_cb);
2615	ev_set_priority (&w->prepare, EV_MINPRI);	2943	ev_set_priority (&w->prepare, EV_MINPRI);
2616	ev_prepare_start (EV_A_ &w->prepare);	2944	ev_prepare_start (EV_A_ &w->prepare);
2617		2945
		2946	ev_fork_init (&w->fork, embed_fork_cb);
		2947	ev_fork_start (EV_A_ &w->fork);
		2948
2618	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	2949	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2619		2950
2620	ev_start (EV_A_ (W)w, 1);	2951	ev_start (EV_A_ (W)w, 1);
		2952
		2953	EV_FREQUENT_CHECK;
2621	}	2954	}
2622		2955
2623	void	2956	void
2624	ev_embed_stop (EV_P_ ev_embed *w)	2957	ev_embed_stop (EV_P_ ev_embed *w)
2625	{	2958	{
2626	clear_pending (EV_A_ (W)w);	2959	clear_pending (EV_A_ (W)w);
2627	if (expect_false (!ev_is_active (w)))	2960	if (expect_false (!ev_is_active (w)))
2628	return;	2961	return;
2629		2962
		2963	EV_FREQUENT_CHECK;
		2964
2630	ev_io_stop (EV_A_ &w->io);	2965	ev_io_stop (EV_A_ &w->io);
2631	ev_prepare_stop (EV_A_ &w->prepare);	2966	ev_prepare_stop (EV_A_ &w->prepare);
		2967	ev_fork_stop (EV_A_ &w->fork);
2632		2968
2633	ev_stop (EV_A_ (W)w);	2969	EV_FREQUENT_CHECK;
2634	}	2970	}
2635	#endif	2971	#endif
2636		2972
2637	#if EV_FORK_ENABLE	2973	#if EV_FORK_ENABLE
2638	void	2974	void
2639	ev_fork_start (EV_P_ ev_fork *w)	2975	ev_fork_start (EV_P_ ev_fork *w)
2640	{	2976	{
2641	if (expect_false (ev_is_active (w)))	2977	if (expect_false (ev_is_active (w)))
2642	return;	2978	return;
		2979
		2980	EV_FREQUENT_CHECK;
2643		2981
2644	ev_start (EV_A_ (W)w, ++forkcnt);	2982	ev_start (EV_A_ (W)w, ++forkcnt);
2645	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2983	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2646	forks [forkcnt - 1] = w;	2984	forks [forkcnt - 1] = w;
		2985
		2986	EV_FREQUENT_CHECK;
2647	}	2987	}
2648		2988
2649	void	2989	void
2650	ev_fork_stop (EV_P_ ev_fork *w)	2990	ev_fork_stop (EV_P_ ev_fork *w)
2651	{	2991	{
2652	clear_pending (EV_A_ (W)w);	2992	clear_pending (EV_A_ (W)w);
2653	if (expect_false (!ev_is_active (w)))	2993	if (expect_false (!ev_is_active (w)))
2654	return;	2994	return;
2655		2995
		2996	EV_FREQUENT_CHECK;
		2997
2656	{	2998	{
2657	int active = ev_active (w);	2999	int active = ev_active (w);
2658		3000
2659	forks [active - 1] = forks [--forkcnt];	3001	forks [active - 1] = forks [--forkcnt];
2660	ev_active (forks [active - 1]) = active;	3002	ev_active (forks [active - 1]) = active;
2661	}	3003	}
2662		3004
2663	ev_stop (EV_A_ (W)w);	3005	ev_stop (EV_A_ (W)w);
		3006
		3007	EV_FREQUENT_CHECK;
2664	}	3008	}
2665	#endif	3009	#endif
2666		3010
2667	#if EV_ASYNC_ENABLE	3011	#if EV_ASYNC_ENABLE
2668	void	3012	void
…		…
2670	{	3014	{
2671	if (expect_false (ev_is_active (w)))	3015	if (expect_false (ev_is_active (w)))
2672	return;	3016	return;
2673		3017
2674	evpipe_init (EV_A);	3018	evpipe_init (EV_A);
		3019
		3020	EV_FREQUENT_CHECK;
2675		3021
2676	ev_start (EV_A_ (W)w, ++asynccnt);	3022	ev_start (EV_A_ (W)w, ++asynccnt);
2677	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	3023	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2678	asyncs [asynccnt - 1] = w;	3024	asyncs [asynccnt - 1] = w;
		3025
		3026	EV_FREQUENT_CHECK;
2679	}	3027	}
2680		3028
2681	void	3029	void
2682	ev_async_stop (EV_P_ ev_async *w)	3030	ev_async_stop (EV_P_ ev_async *w)
2683	{	3031	{
2684	clear_pending (EV_A_ (W)w);	3032	clear_pending (EV_A_ (W)w);
2685	if (expect_false (!ev_is_active (w)))	3033	if (expect_false (!ev_is_active (w)))
2686	return;	3034	return;
2687		3035
		3036	EV_FREQUENT_CHECK;
		3037
2688	{	3038	{
2689	int active = ev_active (w);	3039	int active = ev_active (w);
2690		3040
2691	asyncs [active - 1] = asyncs [--asynccnt];	3041	asyncs [active - 1] = asyncs [--asynccnt];
2692	ev_active (asyncs [active - 1]) = active;	3042	ev_active (asyncs [active - 1]) = active;
2693	}	3043	}
2694		3044
2695	ev_stop (EV_A_ (W)w);	3045	ev_stop (EV_A_ (W)w);
		3046
		3047	EV_FREQUENT_CHECK;
2696	}	3048	}
2697		3049
2698	void	3050	void
2699	ev_async_send (EV_P_ ev_async *w)	3051	ev_async_send (EV_P_ ev_async *w)
2700	{	3052	{
…		…
2717	once_cb (EV_P_ struct ev_once *once, int revents)	3069	once_cb (EV_P_ struct ev_once *once, int revents)
2718	{	3070	{
2719	void (*cb)(int revents, void *arg) = once->cb;	3071	void (*cb)(int revents, void *arg) = once->cb;
2720	void *arg = once->arg;	3072	void *arg = once->arg;
2721		3073
2722	ev_io_stop (EV_A_ &once->io);	3074	ev_io_stop (EV_A_ &once->io);
2723	ev_timer_stop (EV_A_ &once->to);	3075	ev_timer_stop (EV_A_ &once->to);
2724	ev_free (once);	3076	ev_free (once);
2725		3077
2726	cb (revents, arg);	3078	cb (revents, arg);
2727	}	3079	}
2728		3080
2729	static void	3081	static void
2730	once_cb_io (EV_P_ ev_io *w, int revents)	3082	once_cb_io (EV_P_ ev_io *w, int revents)
2731	{	3083	{
2732	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	3084	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
		3085
		3086	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2733	}	3087	}
2734		3088
2735	static void	3089	static void
2736	once_cb_to (EV_P_ ev_timer *w, int revents)	3090	once_cb_to (EV_P_ ev_timer *w, int revents)
2737	{	3091	{
2738	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	3092	struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
		3093
		3094	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2739	}	3095	}
2740		3096
2741	void	3097	void
2742	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	3098	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2743	{	3099	{

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