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Comparing libev/ev.c (file contents):
Revision 1.140 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.178 by root, Tue Dec 11 18:36:11 2007 UTC

…		…
94	# else	94	# else
95	# define EV_USE_PORT 0	95	# define EV_USE_PORT 0
96	# endif	96	# endif
97	# endif	97	# endif
98		98
		99	# ifndef EV_USE_INOTIFY
		100	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		101	# define EV_USE_INOTIFY 1
		102	# else
		103	# define EV_USE_INOTIFY 0
		104	# endif
		105	# endif
		106
99	#endif	107	#endif
100		108
101	#include <math.h>	109	#include <math.h>
102	#include <stdlib.h>	110	#include <stdlib.h>
103	#include <fcntl.h>	111	#include <fcntl.h>
…		…
109	#include <errno.h>	117	#include <errno.h>
110	#include <sys/types.h>	118	#include <sys/types.h>
111	#include <time.h>	119	#include <time.h>
112		120
113	#include <signal.h>	121	#include <signal.h>
		122
		123	#ifdef EV_H
		124	# include EV_H
		125	#else
		126	# include "ev.h"
		127	#endif
114		128
115	#ifndef _WIN32	129	#ifndef _WIN32
116	# include <sys/time.h>	130	# include <sys/time.h>
117	# include <sys/wait.h>	131	# include <sys/wait.h>
118	# include <unistd.h>	132	# include <unistd.h>
…		…
156		170
157	#ifndef EV_USE_PORT	171	#ifndef EV_USE_PORT
158	# define EV_USE_PORT 0	172	# define EV_USE_PORT 0
159	#endif	173	#endif
160		174
		175	#ifndef EV_USE_INOTIFY
		176	# define EV_USE_INOTIFY 0
		177	#endif
		178
		179	#ifndef EV_PID_HASHSIZE
		180	# if EV_MINIMAL
		181	# define EV_PID_HASHSIZE 1
		182	# else
		183	# define EV_PID_HASHSIZE 16
		184	# endif
		185	#endif
		186
		187	#ifndef EV_INOTIFY_HASHSIZE
		188	# if EV_MINIMAL
		189	# define EV_INOTIFY_HASHSIZE 1
		190	# else
		191	# define EV_INOTIFY_HASHSIZE 16
		192	# endif
		193	#endif
		194
161	/**/	195	/**/
162		196
163	#ifndef CLOCK_MONOTONIC	197	#ifndef CLOCK_MONOTONIC
164	# undef EV_USE_MONOTONIC	198	# undef EV_USE_MONOTONIC
165	# define EV_USE_MONOTONIC 0	199	# define EV_USE_MONOTONIC 0
…		…
172		206
173	#if EV_SELECT_IS_WINSOCKET	207	#if EV_SELECT_IS_WINSOCKET
174	# include <winsock.h>	208	# include <winsock.h>
175	#endif	209	#endif
176		210
		211	#if !EV_STAT_ENABLE
		212	# define EV_USE_INOTIFY 0
		213	#endif
		214
		215	#if EV_USE_INOTIFY
		216	# include <sys/inotify.h>
		217	#endif
		218
177	/**/	219	/**/
		220
		221	/*
		222	* This is used to avoid floating point rounding problems.
		223	* It is added to ev_rt_now when scheduling periodics
		224	* to ensure progress, time-wise, even when rounding
		225	* errors are against us.
		226	* This value is good at least till the year 4000.
		227	* Better solutions welcome.
		228	*/
		229	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
178		230
179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	231	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	232	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	233	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
183
184	#ifdef EV_H
185	# include EV_H
186	#else
187	# include "ev.h"
188	#endif
189		234
190	#if __GNUC__ >= 3	235	#if __GNUC__ >= 3
191	# define expect(expr,value) __builtin_expect ((expr),(value))	236	# define expect(expr,value) __builtin_expect ((expr),(value))
192	# define inline_size static inline /* inline for codesize */
193	# if EV_MINIMAL
194	# define noinline __attribute__ ((noinline))	237	# define noinline __attribute__ ((noinline))
195	# define inline_speed static noinline
196	# else
197	# define noinline
198	# define inline_speed static inline
199	# endif
200	#else	238	#else
201	# define expect(expr,value) (expr)	239	# define expect(expr,value) (expr)
202	# define inline_speed static
203	# define inline_minimal static
204	# define noinline	240	# define noinline
		241	# if __STDC_VERSION__ < 199901L
		242	# define inline
		243	# endif
205	#endif	244	#endif
206		245
207	#define expect_false(expr) expect ((expr) != 0, 0)	246	#define expect_false(expr) expect ((expr) != 0, 0)
208	#define expect_true(expr) expect ((expr) != 0, 1)	247	#define expect_true(expr) expect ((expr) != 0, 1)
		248	#define inline_size static inline
		249
		250	#if EV_MINIMAL
		251	# define inline_speed static noinline
		252	#else
		253	# define inline_speed static inline
		254	#endif
209		255
210	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	256	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
211	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	257	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
212		258
213	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	259	#define EMPTY /* required for microsofts broken pseudo-c compiler */
214	#define EMPTY2(a,b) /* used to suppress some warnings */	260	#define EMPTY2(a,b) /* used to suppress some warnings */
215		261
216	typedef ev_watcher *W;	262	typedef ev_watcher *W;
217	typedef ev_watcher_list *WL;	263	typedef ev_watcher_list *WL;
218	typedef ev_watcher_time *WT;	264	typedef ev_watcher_time *WT;
…		…
225		271
226	/*****************************************************************************/	272	/*****************************************************************************/
227		273
228	static void (*syserr_cb)(const char *msg);	274	static void (*syserr_cb)(const char *msg);
229		275
		276	void
230	void ev_set_syserr_cb (void (*cb)(const char *msg))	277	ev_set_syserr_cb (void (*cb)(const char *msg))
231	{	278	{
232	syserr_cb = cb;	279	syserr_cb = cb;
233	}	280	}
234		281
235	static void	282	static void noinline
236	syserr (const char *msg)	283	syserr (const char *msg)
237	{	284	{
238	if (!msg)	285	if (!msg)
239	msg = "(libev) system error";	286	msg = "(libev) system error";
240		287
…		…
247	}	294	}
248	}	295	}
249		296
250	static void *(*alloc)(void *ptr, long size);	297	static void *(*alloc)(void *ptr, long size);
251		298
		299	void
252	void ev_set_allocator (void *(*cb)(void *ptr, long size))	300	ev_set_allocator (void *(*cb)(void *ptr, long size))
253	{	301	{
254	alloc = cb;	302	alloc = cb;
255	}	303	}
256		304
257	static void *	305	inline_speed void *
258	ev_realloc (void *ptr, long size)	306	ev_realloc (void *ptr, long size)
259	{	307	{
260	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	308	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
261		309
262	if (!ptr && size)	310	if (!ptr && size)
…		…
286	typedef struct	334	typedef struct
287	{	335	{
288	W w;	336	W w;
289	int events;	337	int events;
290	} ANPENDING;	338	} ANPENDING;
		339
		340	#if EV_USE_INOTIFY
		341	typedef struct
		342	{
		343	WL head;
		344	} ANFS;
		345	#endif
291		346
292	#if EV_MULTIPLICITY	347	#if EV_MULTIPLICITY
293		348
294	struct ev_loop	349	struct ev_loop
295	{	350	{
…		…
315		370
316	#endif	371	#endif
317		372
318	/*****************************************************************************/	373	/*****************************************************************************/
319		374
320	ev_tstamp noinline	375	ev_tstamp
321	ev_time (void)	376	ev_time (void)
322	{	377	{
323	#if EV_USE_REALTIME	378	#if EV_USE_REALTIME
324	struct timespec ts;	379	struct timespec ts;
325	clock_gettime (CLOCK_REALTIME, &ts);	380	clock_gettime (CLOCK_REALTIME, &ts);
…		…
352	{	407	{
353	return ev_rt_now;	408	return ev_rt_now;
354	}	409	}
355	#endif	410	#endif
356		411
357	#define array_roundsize(type,n) (((n) | 4) & ~3)	412	int inline_size
		413	array_nextsize (int elem, int cur, int cnt)
		414	{
		415	int ncur = cur + 1;
		416
		417	do
		418	ncur <<= 1;
		419	while (cnt > ncur);
		420
		421	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		422	if (elem * ncur > 4096)
		423	{
		424	ncur *= elem;
		425	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		426	ncur = ncur - sizeof (void *) * 4;
		427	ncur /= elem;
		428	}
		429
		430	return ncur;
		431	}
		432
		433	static noinline void *
		434	array_realloc (int elem, void *base, int *cur, int cnt)
		435	{
		436	*cur = array_nextsize (elem, *cur, cnt);
		437	return ev_realloc (base, elem * *cur);
		438	}
358		439
359	#define array_needsize(type,base,cur,cnt,init) \	440	#define array_needsize(type,base,cur,cnt,init) \
360	if (expect_false ((cnt) > cur)) \	441	if (expect_false ((cnt) > (cur))) \
361	{ \	442	{ \
362	int newcnt = cur; \	443	int ocur_ = (cur); \
363	do \	444	(base) = (type *)array_realloc \
364	{ \	445	(sizeof (type), (base), &(cur), (cnt)); \
365	newcnt = array_roundsize (type, newcnt << 1); \	446	init ((base) + (ocur_), (cur) - ocur_); \
366	} \
367	while ((cnt) > newcnt); \
368	\
369	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
370	init (base + cur, newcnt - cur); \
371	cur = newcnt; \
372	}	447	}
373		448
		449	#if 0
374	#define array_slim(type,stem) \	450	#define array_slim(type,stem) \
375	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	451	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
376	{ \	452	{ \
377	stem ## max = array_roundsize (stem ## cnt >> 1); \	453	stem ## max = array_roundsize (stem ## cnt >> 1); \
378	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	454	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
379	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	455	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
380	}	456	}
		457	#endif
381		458
382	#define array_free(stem, idx) \	459	#define array_free(stem, idx) \
383	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	460	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
		461
		462	/*****************************************************************************/
		463
		464	void noinline
		465	ev_feed_event (EV_P_ void *w, int revents)
		466	{
		467	W w_ = (W)w;
		468	int pri = ABSPRI (w_);
		469
		470	if (expect_false (w_->pending))
		471	pendings [pri][w_->pending - 1].events |= revents;
		472	else
		473	{
		474	w_->pending = ++pendingcnt [pri];
		475	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		476	pendings [pri][w_->pending - 1].w = w_;
		477	pendings [pri][w_->pending - 1].events = revents;
		478	}
		479	}
		480
		481	void inline_size
		482	queue_events (EV_P_ W *events, int eventcnt, int type)
		483	{
		484	int i;
		485
		486	for (i = 0; i < eventcnt; ++i)
		487	ev_feed_event (EV_A_ events [i], type);
		488	}
384		489
385	/*****************************************************************************/	490	/*****************************************************************************/
386		491
387	void inline_size	492	void inline_size
388	anfds_init (ANFD *base, int count)	493	anfds_init (ANFD *base, int count)
…		…
395		500
396	++base;	501	++base;
397	}	502	}
398	}	503	}
399		504
400	void noinline
401	ev_feed_event (EV_P_ void *w, int revents)
402	{
403	W w_ = (W)w;
404
405	if (expect_false (w_->pending))
406	{
407	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
408	return;
409	}
410
411	w_->pending = ++pendingcnt [ABSPRI (w_)];
412	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
413	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
414	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
415	}
416
417	static void
418	queue_events (EV_P_ W *events, int eventcnt, int type)
419	{
420	int i;
421
422	for (i = 0; i < eventcnt; ++i)
423	ev_feed_event (EV_A_ events [i], type);
424	}
425
426	void inline_speed	505	void inline_speed
427	fd_event (EV_P_ int fd, int revents)	506	fd_event (EV_P_ int fd, int revents)
428	{	507	{
429	ANFD *anfd = anfds + fd;	508	ANFD *anfd = anfds + fd;
430	ev_io *w;	509	ev_io *w;
…		…
439	}	518	}
440		519
441	void	520	void
442	ev_feed_fd_event (EV_P_ int fd, int revents)	521	ev_feed_fd_event (EV_P_ int fd, int revents)
443	{	522	{
		523	if (fd >= 0 && fd < anfdmax)
444	fd_event (EV_A_ fd, revents);	524	fd_event (EV_A_ fd, revents);
445	}	525	}
446
447	/*****************************************************************************/
448		526
449	void inline_size	527	void inline_size
450	fd_reify (EV_P)	528	fd_reify (EV_P)
451	{	529	{
452	int i;	530	int i;
…		…
545	static void noinline	623	static void noinline
546	fd_rearm_all (EV_P)	624	fd_rearm_all (EV_P)
547	{	625	{
548	int fd;	626	int fd;
549		627
550	/* this should be highly optimised to not do anything but set a flag */
551	for (fd = 0; fd < anfdmax; ++fd)	628	for (fd = 0; fd < anfdmax; ++fd)
552	if (anfds [fd].events)	629	if (anfds [fd].events)
553	{	630	{
554	anfds [fd].events = 0;	631	anfds [fd].events = 0;
555	fd_change (EV_A_ fd);	632	fd_change (EV_A_ fd);
…		…
682	for (signum = signalmax; signum--; )	759	for (signum = signalmax; signum--; )
683	if (signals [signum].gotsig)	760	if (signals [signum].gotsig)
684	ev_feed_signal_event (EV_A_ signum + 1);	761	ev_feed_signal_event (EV_A_ signum + 1);
685	}	762	}
686		763
687	void inline_size	764	void inline_speed
688	fd_intern (int fd)	765	fd_intern (int fd)
689	{	766	{
690	#ifdef _WIN32	767	#ifdef _WIN32
691	int arg = 1;	768	int arg = 1;
692	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	769	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
707	ev_unref (EV_A); /* child watcher should not keep loop alive */	784	ev_unref (EV_A); /* child watcher should not keep loop alive */
708	}	785	}
709		786
710	/*****************************************************************************/	787	/*****************************************************************************/
711		788
712	static ev_child *childs [PID_HASHSIZE];	789	static ev_child *childs [EV_PID_HASHSIZE];
713		790
714	#ifndef _WIN32	791	#ifndef _WIN32
715		792
716	static ev_signal childev;	793	static ev_signal childev;
		794
		795	void inline_speed
		796	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		797	{
		798	ev_child *w;
		799
		800	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		801	if (w->pid == pid || !w->pid)
		802	{
		803	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		804	w->rpid = pid;
		805	w->rstatus = status;
		806	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		807	}
		808	}
717		809
718	#ifndef WCONTINUED	810	#ifndef WCONTINUED
719	# define WCONTINUED 0	811	# define WCONTINUED 0
720	#endif	812	#endif
721		813
722	void inline_speed
723	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
724	{
725	ev_child *w;
726
727	for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
728	if (w->pid == pid || !w->pid)
729	{
730	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
731	w->rpid = pid;
732	w->rstatus = status;
733	ev_feed_event (EV_A_ (W)w, EV_CHILD);
734	}
735	}
736
737	static void	814	static void
738	childcb (EV_P_ ev_signal *sw, int revents)	815	childcb (EV_P_ ev_signal *sw, int revents)
739	{	816	{
740	int pid, status;	817	int pid, status;
741		818
		819	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
742	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	820	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
743	{	821	if (!WCONTINUED
		822	|| errno != EINVAL
		823	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		824	return;
		825
744	/* make sure we are called again until all childs have been reaped */	826	/* make sure we are called again until all childs have been reaped */
745	/* we need to do it this way so that the callback gets called before we continue */	827	/* we need to do it this way so that the callback gets called before we continue */
746	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	828	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
747		829
748	child_reap (EV_A_ sw, pid, pid, status);	830	child_reap (EV_A_ sw, pid, pid, status);
		831	if (EV_PID_HASHSIZE > 1)
749	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	832	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
750	}
751	}	833	}
752		834
753	#endif	835	#endif
754		836
755	/*****************************************************************************/	837	/*****************************************************************************/
…		…
838	ev_backend (EV_P)	920	ev_backend (EV_P)
839	{	921	{
840	return backend;	922	return backend;
841	}	923	}
842		924
843	static void	925	unsigned int
		926	ev_loop_count (EV_P)
		927	{
		928	return loop_count;
		929	}
		930
		931	static void noinline
844	loop_init (EV_P_ unsigned int flags)	932	loop_init (EV_P_ unsigned int flags)
845	{	933	{
846	if (!backend)	934	if (!backend)
847	{	935	{
848	#if EV_USE_MONOTONIC	936	#if EV_USE_MONOTONIC
…		…
856	ev_rt_now = ev_time ();	944	ev_rt_now = ev_time ();
857	mn_now = get_clock ();	945	mn_now = get_clock ();
858	now_floor = mn_now;	946	now_floor = mn_now;
859	rtmn_diff = ev_rt_now - mn_now;	947	rtmn_diff = ev_rt_now - mn_now;
860		948
		949	/* pid check not overridable via env */
		950	#ifndef _WIN32
		951	if (flags & EVFLAG_FORKCHECK)
		952	curpid = getpid ();
		953	#endif
		954
861	if (!(flags & EVFLAG_NOENV)	955	if (!(flags & EVFLAG_NOENV)
862	&& !enable_secure ()	956	&& !enable_secure ()
863	&& getenv ("LIBEV_FLAGS"))	957	&& getenv ("LIBEV_FLAGS"))
864	flags = atoi (getenv ("LIBEV_FLAGS"));	958	flags = atoi (getenv ("LIBEV_FLAGS"));
865		959
866	if (!(flags & 0x0000ffffUL))	960	if (!(flags & 0x0000ffffUL))
867	flags |= ev_recommended_backends ();	961	flags |= ev_recommended_backends ();
868		962
869	backend = 0;	963	backend = 0;
		964	backend_fd = -1;
		965	#if EV_USE_INOTIFY
		966	fs_fd = -2;
		967	#endif
		968
870	#if EV_USE_PORT	969	#if EV_USE_PORT
871	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	970	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
872	#endif	971	#endif
873	#if EV_USE_KQUEUE	972	#if EV_USE_KQUEUE
874	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	973	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
886	ev_init (&sigev, sigcb);	985	ev_init (&sigev, sigcb);
887	ev_set_priority (&sigev, EV_MAXPRI);	986	ev_set_priority (&sigev, EV_MAXPRI);
888	}	987	}
889	}	988	}
890		989
891	static void	990	static void noinline
892	loop_destroy (EV_P)	991	loop_destroy (EV_P)
893	{	992	{
894	int i;	993	int i;
		994
		995	#if EV_USE_INOTIFY
		996	if (fs_fd >= 0)
		997	close (fs_fd);
		998	#endif
		999
		1000	if (backend_fd >= 0)
		1001	close (backend_fd);
895		1002
896	#if EV_USE_PORT	1003	#if EV_USE_PORT
897	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1004	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
898	#endif	1005	#endif
899	#if EV_USE_KQUEUE	1006	#if EV_USE_KQUEUE
…		…
908	#if EV_USE_SELECT	1015	#if EV_USE_SELECT
909	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1016	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
910	#endif	1017	#endif
911		1018
912	for (i = NUMPRI; i--; )	1019	for (i = NUMPRI; i--; )
		1020	{
913	array_free (pending, [i]);	1021	array_free (pending, [i]);
		1022	#if EV_IDLE_ENABLE
		1023	array_free (idle, [i]);
		1024	#endif
		1025	}
914		1026
915	/* have to use the microsoft-never-gets-it-right macro */	1027	/* have to use the microsoft-never-gets-it-right macro */
916	array_free (fdchange, EMPTY0);	1028	array_free (fdchange, EMPTY);
917	array_free (timer, EMPTY0);	1029	array_free (timer, EMPTY);
918	#if EV_PERIODIC_ENABLE	1030	#if EV_PERIODIC_ENABLE
919	array_free (periodic, EMPTY0);	1031	array_free (periodic, EMPTY);
920	#endif	1032	#endif
921	array_free (idle, EMPTY0);
922	array_free (prepare, EMPTY0);	1033	array_free (prepare, EMPTY);
923	array_free (check, EMPTY0);	1034	array_free (check, EMPTY);
924		1035
925	backend = 0;	1036	backend = 0;
926	}	1037	}
927		1038
928	static void	1039	void inline_size infy_fork (EV_P);
		1040
		1041	void inline_size
929	loop_fork (EV_P)	1042	loop_fork (EV_P)
930	{	1043	{
931	#if EV_USE_PORT	1044	#if EV_USE_PORT
932	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1045	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
933	#endif	1046	#endif
934	#if EV_USE_KQUEUE	1047	#if EV_USE_KQUEUE
935	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1048	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
936	#endif	1049	#endif
937	#if EV_USE_EPOLL	1050	#if EV_USE_EPOLL
938	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1051	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1052	#endif
		1053	#if EV_USE_INOTIFY
		1054	infy_fork (EV_A);
939	#endif	1055	#endif
940		1056
941	if (ev_is_active (&sigev))	1057	if (ev_is_active (&sigev))
942	{	1058	{
943	/* default loop */	1059	/* default loop */
…		…
1059	postfork = 1;	1175	postfork = 1;
1060	}	1176	}
1061		1177
1062	/*****************************************************************************/	1178	/*****************************************************************************/
1063		1179
1064	int inline_size	1180	void
1065	any_pending (EV_P)	1181	ev_invoke (EV_P_ void *w, int revents)
1066	{	1182	{
1067	int pri;	1183	EV_CB_INVOKE ((W)w, revents);
1068
1069	for (pri = NUMPRI; pri--; )
1070	if (pendingcnt [pri])
1071	return 1;
1072
1073	return 0;
1074	}	1184	}
1075		1185
1076	void inline_speed	1186	void inline_speed
1077	call_pending (EV_P)	1187	call_pending (EV_P)
1078	{	1188	{
…		…
1083	{	1193	{
1084	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1194	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1085		1195
1086	if (expect_true (p->w))	1196	if (expect_true (p->w))
1087	{	1197	{
1088	assert (("non-pending watcher on pending list", p->w->pending));	1198	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1089		1199
1090	p->w->pending = 0;	1200	p->w->pending = 0;
1091	EV_CB_INVOKE (p->w, p->events);	1201	EV_CB_INVOKE (p->w, p->events);
1092	}	1202	}
1093	}	1203	}
…		…
1098	{	1208	{
1099	while (timercnt && ((WT)timers [0])->at <= mn_now)	1209	while (timercnt && ((WT)timers [0])->at <= mn_now)
1100	{	1210	{
1101	ev_timer *w = timers [0];	1211	ev_timer *w = timers [0];
1102		1212
1103	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1213	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1104		1214
1105	/* first reschedule or stop timer */	1215	/* first reschedule or stop timer */
1106	if (w->repeat)	1216	if (w->repeat)
1107	{	1217	{
1108	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1218	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
…		…
1126	{	1236	{
1127	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1237	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1128	{	1238	{
1129	ev_periodic *w = periodics [0];	1239	ev_periodic *w = periodics [0];
1130		1240
1131	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1241	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1132		1242
1133	/* first reschedule or stop timer */	1243	/* first reschedule or stop timer */
1134	if (w->reschedule_cb)	1244	if (w->reschedule_cb)
1135	{	1245	{
1136	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1246	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1137	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1247	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1138	downheap ((WT *)periodics, periodiccnt, 0);	1248	downheap ((WT *)periodics, periodiccnt, 0);
1139	}	1249	}
1140	else if (w->interval)	1250	else if (w->interval)
1141	{	1251	{
1142	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1252	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1253	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1143	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1254	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1144	downheap ((WT *)periodics, periodiccnt, 0);	1255	downheap ((WT *)periodics, periodiccnt, 0);
1145	}	1256	}
1146	else	1257	else
1147	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1258	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
1161	ev_periodic *w = periodics [i];	1272	ev_periodic *w = periodics [i];
1162		1273
1163	if (w->reschedule_cb)	1274	if (w->reschedule_cb)
1164	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1275	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1165	else if (w->interval)	1276	else if (w->interval)
1166	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1277	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1167	}	1278	}
1168		1279
1169	/* now rebuild the heap */	1280	/* now rebuild the heap */
1170	for (i = periodiccnt >> 1; i--; )	1281	for (i = periodiccnt >> 1; i--; )
1171	downheap ((WT *)periodics, periodiccnt, i);	1282	downheap ((WT *)periodics, periodiccnt, i);
1172	}	1283	}
1173	#endif	1284	#endif
1174		1285
		1286	#if EV_IDLE_ENABLE
1175	int inline_size	1287	void inline_size
1176	time_update_monotonic (EV_P)	1288	idle_reify (EV_P)
1177	{	1289	{
		1290	if (expect_false (idleall))
		1291	{
		1292	int pri;
		1293
		1294	for (pri = NUMPRI; pri--; )
		1295	{
		1296	if (pendingcnt [pri])
		1297	break;
		1298
		1299	if (idlecnt [pri])
		1300	{
		1301	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1302	break;
		1303	}
		1304	}
		1305	}
		1306	}
		1307	#endif
		1308
		1309	void inline_speed
		1310	time_update (EV_P_ ev_tstamp max_block)
		1311	{
		1312	int i;
		1313
		1314	#if EV_USE_MONOTONIC
		1315	if (expect_true (have_monotonic))
		1316	{
		1317	ev_tstamp odiff = rtmn_diff;
		1318
1178	mn_now = get_clock ();	1319	mn_now = get_clock ();
1179		1320
		1321	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1322	/* interpolate in the meantime */
1180	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1323	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1181	{	1324	{
1182	ev_rt_now = rtmn_diff + mn_now;	1325	ev_rt_now = rtmn_diff + mn_now;
1183	return 0;	1326	return;
1184	}	1327	}
1185	else	1328
1186	{
1187	now_floor = mn_now;	1329	now_floor = mn_now;
1188	ev_rt_now = ev_time ();	1330	ev_rt_now = ev_time ();
1189	return 1;
1190	}
1191	}
1192		1331
1193	void inline_size	1332	/* loop a few times, before making important decisions.
1194	time_update (EV_P)	1333	* on the choice of "4": one iteration isn't enough,
1195	{	1334	* in case we get preempted during the calls to
1196	int i;	1335	* ev_time and get_clock. a second call is almost guaranteed
1197		1336	* to succeed in that case, though. and looping a few more times
1198	#if EV_USE_MONOTONIC	1337	* doesn't hurt either as we only do this on time-jumps or
1199	if (expect_true (have_monotonic))	1338	* in the unlikely event of having been preempted here.
1200	{	1339	*/
1201	if (time_update_monotonic (EV_A))	1340	for (i = 4; --i; )
1202	{	1341	{
1203	ev_tstamp odiff = rtmn_diff;
1204
1205	/* loop a few times, before making important decisions.
1206	* on the choice of "4": one iteration isn't enough,
1207	* in case we get preempted during the calls to
1208	* ev_time and get_clock. a second call is almost guarenteed
1209	* to succeed in that case, though. and looping a few more times
1210	* doesn't hurt either as we only do this on time-jumps or
1211	* in the unlikely event of getting preempted here.
1212	*/
1213	for (i = 4; --i; )
1214	{
1215	rtmn_diff = ev_rt_now - mn_now;	1342	rtmn_diff = ev_rt_now - mn_now;
1216		1343
1217	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1344	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1218	return; /* all is well */	1345	return; /* all is well */
1219		1346
1220	ev_rt_now = ev_time ();	1347	ev_rt_now = ev_time ();
1221	mn_now = get_clock ();	1348	mn_now = get_clock ();
1222	now_floor = mn_now;	1349	now_floor = mn_now;
1223	}	1350	}
1224		1351
1225	# if EV_PERIODIC_ENABLE	1352	# if EV_PERIODIC_ENABLE
1226	periodics_reschedule (EV_A);	1353	periodics_reschedule (EV_A);
1227	# endif	1354	# endif
1228	/* no timer adjustment, as the monotonic clock doesn't jump */	1355	/* no timer adjustment, as the monotonic clock doesn't jump */
1229	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1356	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1230	}
1231	}	1357	}
1232	else	1358	else
1233	#endif	1359	#endif
1234	{	1360	{
1235	ev_rt_now = ev_time ();	1361	ev_rt_now = ev_time ();
1236		1362
1237	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1363	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1238	{	1364	{
1239	#if EV_PERIODIC_ENABLE	1365	#if EV_PERIODIC_ENABLE
1240	periodics_reschedule (EV_A);	1366	periodics_reschedule (EV_A);
1241	#endif	1367	#endif
1242
1243	/* adjust timers. this is easy, as the offset is the same for all */	1368	/* adjust timers. this is easy, as the offset is the same for all of them */
1244	for (i = 0; i < timercnt; ++i)	1369	for (i = 0; i < timercnt; ++i)
1245	((WT)timers [i])->at += ev_rt_now - mn_now;	1370	((WT)timers [i])->at += ev_rt_now - mn_now;
1246	}	1371	}
1247		1372
1248	mn_now = ev_rt_now;	1373	mn_now = ev_rt_now;
…		…
1268	{	1393	{
1269	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1394	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1270	? EVUNLOOP_ONE	1395	? EVUNLOOP_ONE
1271	: EVUNLOOP_CANCEL;	1396	: EVUNLOOP_CANCEL;
1272		1397
1273	while (activecnt)	1398	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1399
		1400	do
1274	{	1401	{
		1402	#ifndef _WIN32
		1403	if (expect_false (curpid)) /* penalise the forking check even more */
		1404	if (expect_false (getpid () != curpid))
		1405	{
		1406	curpid = getpid ();
		1407	postfork = 1;
		1408	}
		1409	#endif
		1410
		1411	#if EV_FORK_ENABLE
		1412	/* we might have forked, so queue fork handlers */
		1413	if (expect_false (postfork))
		1414	if (forkcnt)
		1415	{
		1416	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1417	call_pending (EV_A);
		1418	}
		1419	#endif
		1420
1275	/* queue check watchers (and execute them) */	1421	/* queue prepare watchers (and execute them) */
1276	if (expect_false (preparecnt))	1422	if (expect_false (preparecnt))
1277	{	1423	{
1278	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1424	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1279	call_pending (EV_A);	1425	call_pending (EV_A);
1280	}	1426	}
1281		1427
		1428	if (expect_false (!activecnt))
		1429	break;
		1430
1282	/* we might have forked, so reify kernel state if necessary */	1431	/* we might have forked, so reify kernel state if necessary */
1283	if (expect_false (postfork))	1432	if (expect_false (postfork))
1284	loop_fork (EV_A);	1433	loop_fork (EV_A);
1285		1434
1286	/* update fd-related kernel structures */	1435	/* update fd-related kernel structures */
1287	fd_reify (EV_A);	1436	fd_reify (EV_A);
1288		1437
1289	/* calculate blocking time */	1438	/* calculate blocking time */
1290	{	1439	{
1291	double block;	1440	ev_tstamp block;
1292		1441
1293	if (flags & EVLOOP_NONBLOCK || idlecnt)	1442	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1294	block = 0.; /* do not block at all */	1443	block = 0.; /* do not block at all */
1295	else	1444	else
1296	{	1445	{
1297	/* update time to cancel out callback processing overhead */	1446	/* update time to cancel out callback processing overhead */
1298	#if EV_USE_MONOTONIC
1299	if (expect_true (have_monotonic))
1300	time_update_monotonic (EV_A);	1447	time_update (EV_A_ 1e100);
1301	else
1302	#endif
1303	{
1304	ev_rt_now = ev_time ();
1305	mn_now = ev_rt_now;
1306	}
1307		1448
1308	block = MAX_BLOCKTIME;	1449	block = MAX_BLOCKTIME;
1309		1450
1310	if (timercnt)	1451	if (timercnt)
1311	{	1452	{
…		…
1322	#endif	1463	#endif
1323		1464
1324	if (expect_false (block < 0.)) block = 0.;	1465	if (expect_false (block < 0.)) block = 0.;
1325	}	1466	}
1326		1467
		1468	++loop_count;
1327	backend_poll (EV_A_ block);	1469	backend_poll (EV_A_ block);
		1470
		1471	/* update ev_rt_now, do magic */
		1472	time_update (EV_A_ block);
1328	}	1473	}
1329
1330	/* update ev_rt_now, do magic */
1331	time_update (EV_A);
1332		1474
1333	/* queue pending timers and reschedule them */	1475	/* queue pending timers and reschedule them */
1334	timers_reify (EV_A); /* relative timers called last */	1476	timers_reify (EV_A); /* relative timers called last */
1335	#if EV_PERIODIC_ENABLE	1477	#if EV_PERIODIC_ENABLE
1336	periodics_reify (EV_A); /* absolute timers called first */	1478	periodics_reify (EV_A); /* absolute timers called first */
1337	#endif	1479	#endif
1338		1480
		1481	#if EV_IDLE_ENABLE
1339	/* queue idle watchers unless other events are pending */	1482	/* queue idle watchers unless other events are pending */
1340	if (idlecnt && !any_pending (EV_A))	1483	idle_reify (EV_A);
1341	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1484	#endif
1342		1485
1343	/* queue check watchers, to be executed first */	1486	/* queue check watchers, to be executed first */
1344	if (expect_false (checkcnt))	1487	if (expect_false (checkcnt))
1345	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1488	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1346		1489
1347	call_pending (EV_A);	1490	call_pending (EV_A);
1348		1491
1349	if (expect_false (loop_done))
1350	break;
1351	}	1492	}
		1493	while (expect_true (activecnt && !loop_done));
1352		1494
1353	if (loop_done == EVUNLOOP_ONE)	1495	if (loop_done == EVUNLOOP_ONE)
1354	loop_done = EVUNLOOP_CANCEL;	1496	loop_done = EVUNLOOP_CANCEL;
1355	}	1497	}
1356		1498
…		…
1383	head = &(*head)->next;	1525	head = &(*head)->next;
1384	}	1526	}
1385	}	1527	}
1386		1528
1387	void inline_speed	1529	void inline_speed
1388	ev_clear_pending (EV_P_ W w)	1530	clear_pending (EV_P_ W w)
1389	{	1531	{
1390	if (w->pending)	1532	if (w->pending)
1391	{	1533	{
1392	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1534	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1393	w->pending = 0;	1535	w->pending = 0;
1394	}	1536	}
1395	}	1537	}
1396		1538
		1539	int
		1540	ev_clear_pending (EV_P_ void *w)
		1541	{
		1542	W w_ = (W)w;
		1543	int pending = w_->pending;
		1544
		1545	if (expect_true (pending))
		1546	{
		1547	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1548	w_->pending = 0;
		1549	p->w = 0;
		1550	return p->events;
		1551	}
		1552	else
		1553	return 0;
		1554	}
		1555
		1556	void inline_size
		1557	pri_adjust (EV_P_ W w)
		1558	{
		1559	int pri = w->priority;
		1560	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1561	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1562	w->priority = pri;
		1563	}
		1564
1397	void inline_speed	1565	void inline_speed
1398	ev_start (EV_P_ W w, int active)	1566	ev_start (EV_P_ W w, int active)
1399	{	1567	{
1400	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1568	pri_adjust (EV_A_ w);
1401	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1402
1403	w->active = active;	1569	w->active = active;
1404	ev_ref (EV_A);	1570	ev_ref (EV_A);
1405	}	1571	}
1406		1572
1407	void inline_size	1573	void inline_size
…		…
1411	w->active = 0;	1577	w->active = 0;
1412	}	1578	}
1413		1579
1414	/*****************************************************************************/	1580	/*****************************************************************************/
1415		1581
1416	void	1582	void noinline
1417	ev_io_start (EV_P_ ev_io *w)	1583	ev_io_start (EV_P_ ev_io *w)
1418	{	1584	{
1419	int fd = w->fd;	1585	int fd = w->fd;
1420		1586
1421	if (expect_false (ev_is_active (w)))	1587	if (expect_false (ev_is_active (w)))
…		…
1428	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1594	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1429		1595
1430	fd_change (EV_A_ fd);	1596	fd_change (EV_A_ fd);
1431	}	1597	}
1432		1598
1433	void	1599	void noinline
1434	ev_io_stop (EV_P_ ev_io *w)	1600	ev_io_stop (EV_P_ ev_io *w)
1435	{	1601	{
1436	ev_clear_pending (EV_A_ (W)w);	1602	clear_pending (EV_A_ (W)w);
1437	if (expect_false (!ev_is_active (w)))	1603	if (expect_false (!ev_is_active (w)))
1438	return;	1604	return;
1439		1605
1440	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1606	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1441		1607
…		…
1443	ev_stop (EV_A_ (W)w);	1609	ev_stop (EV_A_ (W)w);
1444		1610
1445	fd_change (EV_A_ w->fd);	1611	fd_change (EV_A_ w->fd);
1446	}	1612	}
1447		1613
1448	void	1614	void noinline
1449	ev_timer_start (EV_P_ ev_timer *w)	1615	ev_timer_start (EV_P_ ev_timer *w)
1450	{	1616	{
1451	if (expect_false (ev_is_active (w)))	1617	if (expect_false (ev_is_active (w)))
1452	return;	1618	return;
1453		1619
…		…
1458	ev_start (EV_A_ (W)w, ++timercnt);	1624	ev_start (EV_A_ (W)w, ++timercnt);
1459	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1625	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1460	timers [timercnt - 1] = w;	1626	timers [timercnt - 1] = w;
1461	upheap ((WT *)timers, timercnt - 1);	1627	upheap ((WT *)timers, timercnt - 1);
1462		1628
		1629	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
		1630	}
		1631
		1632	void noinline
		1633	ev_timer_stop (EV_P_ ev_timer *w)
		1634	{
		1635	clear_pending (EV_A_ (W)w);
		1636	if (expect_false (!ev_is_active (w)))
		1637	return;
		1638
1463	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1639	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1464	}
1465		1640
1466	void	1641	{
1467	ev_timer_stop (EV_P_ ev_timer *w)	1642	int active = ((W)w)->active;
1468	{
1469	ev_clear_pending (EV_A_ (W)w);
1470	if (expect_false (!ev_is_active (w)))
1471	return;
1472		1643
1473	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1474
1475	if (expect_true (((W)w)->active < timercnt--))	1644	if (expect_true (--active < --timercnt))
1476	{	1645	{
1477	timers [((W)w)->active - 1] = timers [timercnt];	1646	timers [active] = timers [timercnt];
1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1647	adjustheap ((WT *)timers, timercnt, active);
1479	}	1648	}
		1649	}
1480		1650
1481	((WT)w)->at -= mn_now;	1651	((WT)w)->at -= mn_now;
1482		1652
1483	ev_stop (EV_A_ (W)w);	1653	ev_stop (EV_A_ (W)w);
1484	}	1654	}
1485		1655
1486	void	1656	void noinline
1487	ev_timer_again (EV_P_ ev_timer *w)	1657	ev_timer_again (EV_P_ ev_timer *w)
1488	{	1658	{
1489	if (ev_is_active (w))	1659	if (ev_is_active (w))
1490	{	1660	{
1491	if (w->repeat)	1661	if (w->repeat)
…		…
1502	ev_timer_start (EV_A_ w);	1672	ev_timer_start (EV_A_ w);
1503	}	1673	}
1504	}	1674	}
1505		1675
1506	#if EV_PERIODIC_ENABLE	1676	#if EV_PERIODIC_ENABLE
1507	void	1677	void noinline
1508	ev_periodic_start (EV_P_ ev_periodic *w)	1678	ev_periodic_start (EV_P_ ev_periodic *w)
1509	{	1679	{
1510	if (expect_false (ev_is_active (w)))	1680	if (expect_false (ev_is_active (w)))
1511	return;	1681	return;
1512		1682
…		…
1514	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1684	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1515	else if (w->interval)	1685	else if (w->interval)
1516	{	1686	{
1517	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1687	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1518	/* this formula differs from the one in periodic_reify because we do not always round up */	1688	/* this formula differs from the one in periodic_reify because we do not always round up */
1519	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1689	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1520	}	1690	}
		1691	else
		1692	((WT)w)->at = w->offset;
1521		1693
1522	ev_start (EV_A_ (W)w, ++periodiccnt);	1694	ev_start (EV_A_ (W)w, ++periodiccnt);
1523	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1695	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1524	periodics [periodiccnt - 1] = w;	1696	periodics [periodiccnt - 1] = w;
1525	upheap ((WT *)periodics, periodiccnt - 1);	1697	upheap ((WT *)periodics, periodiccnt - 1);
1526		1698
		1699	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
		1700	}
		1701
		1702	void noinline
		1703	ev_periodic_stop (EV_P_ ev_periodic *w)
		1704	{
		1705	clear_pending (EV_A_ (W)w);
		1706	if (expect_false (!ev_is_active (w)))
		1707	return;
		1708
1527	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1709	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1528	}
1529		1710
1530	void	1711	{
1531	ev_periodic_stop (EV_P_ ev_periodic *w)	1712	int active = ((W)w)->active;
1532	{
1533	ev_clear_pending (EV_A_ (W)w);
1534	if (expect_false (!ev_is_active (w)))
1535	return;
1536		1713
1537	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1538
1539	if (expect_true (((W)w)->active < periodiccnt--))	1714	if (expect_true (--active < --periodiccnt))
1540	{	1715	{
1541	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1716	periodics [active] = periodics [periodiccnt];
1542	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1717	adjustheap ((WT *)periodics, periodiccnt, active);
1543	}	1718	}
		1719	}
1544		1720
1545	ev_stop (EV_A_ (W)w);	1721	ev_stop (EV_A_ (W)w);
1546	}	1722	}
1547		1723
1548	void	1724	void noinline
1549	ev_periodic_again (EV_P_ ev_periodic *w)	1725	ev_periodic_again (EV_P_ ev_periodic *w)
1550	{	1726	{
1551	/* TODO: use adjustheap and recalculation */	1727	/* TODO: use adjustheap and recalculation */
1552	ev_periodic_stop (EV_A_ w);	1728	ev_periodic_stop (EV_A_ w);
1553	ev_periodic_start (EV_A_ w);	1729	ev_periodic_start (EV_A_ w);
1554	}	1730	}
1555	#endif	1731	#endif
1556		1732
1557	void
1558	ev_idle_start (EV_P_ ev_idle *w)
1559	{
1560	if (expect_false (ev_is_active (w)))
1561	return;
1562
1563	ev_start (EV_A_ (W)w, ++idlecnt);
1564	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1565	idles [idlecnt - 1] = w;
1566	}
1567
1568	void
1569	ev_idle_stop (EV_P_ ev_idle *w)
1570	{
1571	ev_clear_pending (EV_A_ (W)w);
1572	if (expect_false (!ev_is_active (w)))
1573	return;
1574
1575	{
1576	int active = ((W)w)->active;
1577	idles [active - 1] = idles [--idlecnt];
1578	((W)idles [active - 1])->active = active;
1579	}
1580
1581	ev_stop (EV_A_ (W)w);
1582	}
1583
1584	void
1585	ev_prepare_start (EV_P_ ev_prepare *w)
1586	{
1587	if (expect_false (ev_is_active (w)))
1588	return;
1589
1590	ev_start (EV_A_ (W)w, ++preparecnt);
1591	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1592	prepares [preparecnt - 1] = w;
1593	}
1594
1595	void
1596	ev_prepare_stop (EV_P_ ev_prepare *w)
1597	{
1598	ev_clear_pending (EV_A_ (W)w);
1599	if (expect_false (!ev_is_active (w)))
1600	return;
1601
1602	{
1603	int active = ((W)w)->active;
1604	prepares [active - 1] = prepares [--preparecnt];
1605	((W)prepares [active - 1])->active = active;
1606	}
1607
1608	ev_stop (EV_A_ (W)w);
1609	}
1610
1611	void
1612	ev_check_start (EV_P_ ev_check *w)
1613	{
1614	if (expect_false (ev_is_active (w)))
1615	return;
1616
1617	ev_start (EV_A_ (W)w, ++checkcnt);
1618	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1619	checks [checkcnt - 1] = w;
1620	}
1621
1622	void
1623	ev_check_stop (EV_P_ ev_check *w)
1624	{
1625	ev_clear_pending (EV_A_ (W)w);
1626	if (expect_false (!ev_is_active (w)))
1627	return;
1628
1629	{
1630	int active = ((W)w)->active;
1631	checks [active - 1] = checks [--checkcnt];
1632	((W)checks [active - 1])->active = active;
1633	}
1634
1635	ev_stop (EV_A_ (W)w);
1636	}
1637
1638	#ifndef SA_RESTART	1733	#ifndef SA_RESTART
1639	# define SA_RESTART 0	1734	# define SA_RESTART 0
1640	#endif	1735	#endif
1641		1736
1642	void	1737	void noinline
1643	ev_signal_start (EV_P_ ev_signal *w)	1738	ev_signal_start (EV_P_ ev_signal *w)
1644	{	1739	{
1645	#if EV_MULTIPLICITY	1740	#if EV_MULTIPLICITY
1646	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1741	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1647	#endif	1742	#endif
…		…
1666	sigaction (w->signum, &sa, 0);	1761	sigaction (w->signum, &sa, 0);
1667	#endif	1762	#endif
1668	}	1763	}
1669	}	1764	}
1670		1765
1671	void	1766	void noinline
1672	ev_signal_stop (EV_P_ ev_signal *w)	1767	ev_signal_stop (EV_P_ ev_signal *w)
1673	{	1768	{
1674	ev_clear_pending (EV_A_ (W)w);	1769	clear_pending (EV_A_ (W)w);
1675	if (expect_false (!ev_is_active (w)))	1770	if (expect_false (!ev_is_active (w)))
1676	return;	1771	return;
1677		1772
1678	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1773	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1679	ev_stop (EV_A_ (W)w);	1774	ev_stop (EV_A_ (W)w);
…		…
1690	#endif	1785	#endif
1691	if (expect_false (ev_is_active (w)))	1786	if (expect_false (ev_is_active (w)))
1692	return;	1787	return;
1693		1788
1694	ev_start (EV_A_ (W)w, 1);	1789	ev_start (EV_A_ (W)w, 1);
1695	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1790	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1696	}	1791	}
1697		1792
1698	void	1793	void
1699	ev_child_stop (EV_P_ ev_child *w)	1794	ev_child_stop (EV_P_ ev_child *w)
1700	{	1795	{
1701	ev_clear_pending (EV_A_ (W)w);	1796	clear_pending (EV_A_ (W)w);
1702	if (expect_false (!ev_is_active (w)))	1797	if (expect_false (!ev_is_active (w)))
1703	return;	1798	return;
1704		1799
1705	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1800	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		1801	ev_stop (EV_A_ (W)w);
		1802	}
		1803
		1804	#if EV_STAT_ENABLE
		1805
		1806	# ifdef _WIN32
		1807	# undef lstat
		1808	# define lstat(a,b) _stati64 (a,b)
		1809	# endif
		1810
		1811	#define DEF_STAT_INTERVAL 5.0074891
		1812	#define MIN_STAT_INTERVAL 0.1074891
		1813
		1814	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1815
		1816	#if EV_USE_INOTIFY
		1817	# define EV_INOTIFY_BUFSIZE 8192
		1818
		1819	static void noinline
		1820	infy_add (EV_P_ ev_stat *w)
		1821	{
		1822	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);
		1823
		1824	if (w->wd < 0)
		1825	{
		1826	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1827
		1828	/* monitor some parent directory for speedup hints */
		1829	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1830	{
		1831	char path [4096];
		1832	strcpy (path, w->path);
		1833
		1834	do
		1835	{
		1836	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1837	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1838
		1839	char *pend = strrchr (path, '/');
		1840
		1841	if (!pend)
		1842	break; /* whoops, no '/', complain to your admin */
		1843
		1844	*pend = 0;
		1845	w->wd = inotify_add_watch (fs_fd, path, mask);
		1846	}
		1847	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1848	}
		1849	}
		1850	else
		1851	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1852
		1853	if (w->wd >= 0)
		1854	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1855	}
		1856
		1857	static void noinline
		1858	infy_del (EV_P_ ev_stat *w)
		1859	{
		1860	int slot;
		1861	int wd = w->wd;
		1862
		1863	if (wd < 0)
		1864	return;
		1865
		1866	w->wd = -2;
		1867	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1868	wlist_del (&fs_hash [slot].head, (WL)w);
		1869
		1870	/* remove this watcher, if others are watching it, they will rearm */
		1871	inotify_rm_watch (fs_fd, wd);
		1872	}
		1873
		1874	static void noinline
		1875	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1876	{
		1877	if (slot < 0)
		1878	/* overflow, need to check for all hahs slots */
		1879	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1880	infy_wd (EV_A_ slot, wd, ev);
		1881	else
		1882	{
		1883	WL w_;
		1884
		1885	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1886	{
		1887	ev_stat *w = (ev_stat *)w_;
		1888	w_ = w_->next; /* lets us remove this watcher and all before it */
		1889
		1890	if (w->wd == wd || wd == -1)
		1891	{
		1892	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1893	{
		1894	w->wd = -1;
		1895	infy_add (EV_A_ w); /* re-add, no matter what */
		1896	}
		1897
		1898	stat_timer_cb (EV_A_ &w->timer, 0);
		1899	}
		1900	}
		1901	}
		1902	}
		1903
		1904	static void
		1905	infy_cb (EV_P_ ev_io *w, int revents)
		1906	{
		1907	char buf [EV_INOTIFY_BUFSIZE];
		1908	struct inotify_event *ev = (struct inotify_event *)buf;
		1909	int ofs;
		1910	int len = read (fs_fd, buf, sizeof (buf));
		1911
		1912	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1913	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1914	}
		1915
		1916	void inline_size
		1917	infy_init (EV_P)
		1918	{
		1919	if (fs_fd != -2)
		1920	return;
		1921
		1922	fs_fd = inotify_init ();
		1923
		1924	if (fs_fd >= 0)
		1925	{
		1926	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1927	ev_set_priority (&fs_w, EV_MAXPRI);
		1928	ev_io_start (EV_A_ &fs_w);
		1929	}
		1930	}
		1931
		1932	void inline_size
		1933	infy_fork (EV_P)
		1934	{
		1935	int slot;
		1936
		1937	if (fs_fd < 0)
		1938	return;
		1939
		1940	close (fs_fd);
		1941	fs_fd = inotify_init ();
		1942
		1943	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1944	{
		1945	WL w_ = fs_hash [slot].head;
		1946	fs_hash [slot].head = 0;
		1947
		1948	while (w_)
		1949	{
		1950	ev_stat *w = (ev_stat *)w_;
		1951	w_ = w_->next; /* lets us add this watcher */
		1952
		1953	w->wd = -1;
		1954
		1955	if (fs_fd >= 0)
		1956	infy_add (EV_A_ w); /* re-add, no matter what */
		1957	else
		1958	ev_timer_start (EV_A_ &w->timer);
		1959	}
		1960
		1961	}
		1962	}
		1963
		1964	#endif
		1965
		1966	void
		1967	ev_stat_stat (EV_P_ ev_stat *w)
		1968	{
		1969	if (lstat (w->path, &w->attr) < 0)
		1970	w->attr.st_nlink = 0;
		1971	else if (!w->attr.st_nlink)
		1972	w->attr.st_nlink = 1;
		1973	}
		1974
		1975	static void noinline
		1976	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1977	{
		1978	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		1979
		1980	/* we copy this here each the time so that */
		1981	/* prev has the old value when the callback gets invoked */
		1982	w->prev = w->attr;
		1983	ev_stat_stat (EV_A_ w);
		1984
		1985	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		1986	if (
		1987	w->prev.st_dev != w->attr.st_dev
		1988	|| w->prev.st_ino != w->attr.st_ino
		1989	|| w->prev.st_mode != w->attr.st_mode
		1990	|| w->prev.st_nlink != w->attr.st_nlink
		1991	|| w->prev.st_uid != w->attr.st_uid
		1992	|| w->prev.st_gid != w->attr.st_gid
		1993	|| w->prev.st_rdev != w->attr.st_rdev
		1994	|| w->prev.st_size != w->attr.st_size
		1995	|| w->prev.st_atime != w->attr.st_atime
		1996	|| w->prev.st_mtime != w->attr.st_mtime
		1997	|| w->prev.st_ctime != w->attr.st_ctime
		1998	) {
		1999	#if EV_USE_INOTIFY
		2000	infy_del (EV_A_ w);
		2001	infy_add (EV_A_ w);
		2002	ev_stat_stat (EV_A_ w); /* avoid race... */
		2003	#endif
		2004
		2005	ev_feed_event (EV_A_ w, EV_STAT);
		2006	}
		2007	}
		2008
		2009	void
		2010	ev_stat_start (EV_P_ ev_stat *w)
		2011	{
		2012	if (expect_false (ev_is_active (w)))
		2013	return;
		2014
		2015	/* since we use memcmp, we need to clear any padding data etc. */
		2016	memset (&w->prev, 0, sizeof (ev_statdata));
		2017	memset (&w->attr, 0, sizeof (ev_statdata));
		2018
		2019	ev_stat_stat (EV_A_ w);
		2020
		2021	if (w->interval < MIN_STAT_INTERVAL)
		2022	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2023
		2024	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2025	ev_set_priority (&w->timer, ev_priority (w));
		2026
		2027	#if EV_USE_INOTIFY
		2028	infy_init (EV_A);
		2029
		2030	if (fs_fd >= 0)
		2031	infy_add (EV_A_ w);
		2032	else
		2033	#endif
		2034	ev_timer_start (EV_A_ &w->timer);
		2035
		2036	ev_start (EV_A_ (W)w, 1);
		2037	}
		2038
		2039	void
		2040	ev_stat_stop (EV_P_ ev_stat *w)
		2041	{
		2042	clear_pending (EV_A_ (W)w);
		2043	if (expect_false (!ev_is_active (w)))
		2044	return;
		2045
		2046	#if EV_USE_INOTIFY
		2047	infy_del (EV_A_ w);
		2048	#endif
		2049	ev_timer_stop (EV_A_ &w->timer);
		2050
		2051	ev_stop (EV_A_ (W)w);
		2052	}
		2053	#endif
		2054
		2055	#if EV_IDLE_ENABLE
		2056	void
		2057	ev_idle_start (EV_P_ ev_idle *w)
		2058	{
		2059	if (expect_false (ev_is_active (w)))
		2060	return;
		2061
		2062	pri_adjust (EV_A_ (W)w);
		2063
		2064	{
		2065	int active = ++idlecnt [ABSPRI (w)];
		2066
		2067	++idleall;
		2068	ev_start (EV_A_ (W)w, active);
		2069
		2070	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2071	idles [ABSPRI (w)][active - 1] = w;
		2072	}
		2073	}
		2074
		2075	void
		2076	ev_idle_stop (EV_P_ ev_idle *w)
		2077	{
		2078	clear_pending (EV_A_ (W)w);
		2079	if (expect_false (!ev_is_active (w)))
		2080	return;
		2081
		2082	{
		2083	int active = ((W)w)->active;
		2084
		2085	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2086	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2087
		2088	ev_stop (EV_A_ (W)w);
		2089	--idleall;
		2090	}
		2091	}
		2092	#endif
		2093
		2094	void
		2095	ev_prepare_start (EV_P_ ev_prepare *w)
		2096	{
		2097	if (expect_false (ev_is_active (w)))
		2098	return;
		2099
		2100	ev_start (EV_A_ (W)w, ++preparecnt);
		2101	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2102	prepares [preparecnt - 1] = w;
		2103	}
		2104
		2105	void
		2106	ev_prepare_stop (EV_P_ ev_prepare *w)
		2107	{
		2108	clear_pending (EV_A_ (W)w);
		2109	if (expect_false (!ev_is_active (w)))
		2110	return;
		2111
		2112	{
		2113	int active = ((W)w)->active;
		2114	prepares [active - 1] = prepares [--preparecnt];
		2115	((W)prepares [active - 1])->active = active;
		2116	}
		2117
		2118	ev_stop (EV_A_ (W)w);
		2119	}
		2120
		2121	void
		2122	ev_check_start (EV_P_ ev_check *w)
		2123	{
		2124	if (expect_false (ev_is_active (w)))
		2125	return;
		2126
		2127	ev_start (EV_A_ (W)w, ++checkcnt);
		2128	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2129	checks [checkcnt - 1] = w;
		2130	}
		2131
		2132	void
		2133	ev_check_stop (EV_P_ ev_check *w)
		2134	{
		2135	clear_pending (EV_A_ (W)w);
		2136	if (expect_false (!ev_is_active (w)))
		2137	return;
		2138
		2139	{
		2140	int active = ((W)w)->active;
		2141	checks [active - 1] = checks [--checkcnt];
		2142	((W)checks [active - 1])->active = active;
		2143	}
		2144
1706	ev_stop (EV_A_ (W)w);	2145	ev_stop (EV_A_ (W)w);
1707	}	2146	}
1708		2147
1709	#if EV_EMBED_ENABLE	2148	#if EV_EMBED_ENABLE
1710	void noinline	2149	void noinline
…		…
1743	}	2182	}
1744		2183
1745	void	2184	void
1746	ev_embed_stop (EV_P_ ev_embed *w)	2185	ev_embed_stop (EV_P_ ev_embed *w)
1747	{	2186	{
1748	ev_clear_pending (EV_A_ (W)w);	2187	clear_pending (EV_A_ (W)w);
1749	if (expect_false (!ev_is_active (w)))	2188	if (expect_false (!ev_is_active (w)))
1750	return;	2189	return;
1751		2190
1752	ev_io_stop (EV_A_ &w->io);	2191	ev_io_stop (EV_A_ &w->io);
1753		2192
1754	ev_stop (EV_A_ (W)w);	2193	ev_stop (EV_A_ (W)w);
1755	}	2194	}
1756	#endif	2195	#endif
1757		2196
1758	#if EV_STAT_ENABLE	2197	#if EV_FORK_ENABLE
1759
1760	# ifdef _WIN32
1761	# define lstat(a,b) stat(a,b)
1762	# endif
1763
1764	void	2198	void
1765	ev_stat_stat (EV_P_ ev_stat *w)
1766	{
1767	if (lstat (w->path, &w->attr) < 0)
1768	w->attr.st_nlink = 0;
1769	else if (!w->attr.st_nlink)
1770	w->attr.st_nlink = 1;
1771	}
1772
1773	static void
1774	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1775	{
1776	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1777
1778	/* we copy this here each the time so that */
1779	/* prev has the old value when the callback gets invoked */
1780	w->prev = w->attr;
1781	ev_stat_stat (EV_A_ w);
1782
1783	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1784	ev_feed_event (EV_A_ w, EV_STAT);
1785	}
1786
1787	void
1788	ev_stat_start (EV_P_ ev_stat *w)	2199	ev_fork_start (EV_P_ ev_fork *w)
1789	{	2200	{
1790	if (expect_false (ev_is_active (w)))	2201	if (expect_false (ev_is_active (w)))
1791	return;	2202	return;
1792		2203
1793	/* since we use memcmp, we need to clear any padding data etc. */
1794	memset (&w->prev, 0, sizeof (ev_statdata));
1795	memset (&w->attr, 0, sizeof (ev_statdata));
1796
1797	ev_stat_stat (EV_A_ w);
1798
1799	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1800	ev_set_priority (&w->timer, ev_priority (w));
1801	ev_timer_start (EV_A_ &w->timer);
1802
1803	ev_start (EV_A_ (W)w, 1);	2204	ev_start (EV_A_ (W)w, ++forkcnt);
		2205	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2206	forks [forkcnt - 1] = w;
1804	}	2207	}
1805		2208
1806	void	2209	void
1807	ev_stat_stop (EV_P_ ev_stat *w)	2210	ev_fork_stop (EV_P_ ev_fork *w)
1808	{	2211	{
1809	ev_clear_pending (EV_A_ (W)w);	2212	clear_pending (EV_A_ (W)w);
1810	if (expect_false (!ev_is_active (w)))	2213	if (expect_false (!ev_is_active (w)))
1811	return;	2214	return;
1812		2215
1813	ev_timer_stop (EV_A_ &w->timer);	2216	{
		2217	int active = ((W)w)->active;
		2218	forks [active - 1] = forks [--forkcnt];
		2219	((W)forks [active - 1])->active = active;
		2220	}
1814		2221
1815	ev_stop (EV_A_ (W)w);	2222	ev_stop (EV_A_ (W)w);
1816	}	2223	}
1817	#endif	2224	#endif
1818		2225

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