ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.141 by root, Mon Nov 26 20:33:58 2007 UTC vs.
Revision 1.181 by root, Wed Dec 12 00:17:08 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;
…		…
254	ev_set_allocator (void *(*cb)(void *ptr, long size))	300	ev_set_allocator (void *(*cb)(void *ptr, long size))
255	{	301	{
256	alloc = cb;	302	alloc = cb;
257	}	303	}
258		304
259	static void *	305	inline_speed void *
260	ev_realloc (void *ptr, long size)	306	ev_realloc (void *ptr, long size)
261	{	307	{
262	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	308	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
263		309
264	if (!ptr && size)	310	if (!ptr && size)
…		…
288	typedef struct	334	typedef struct
289	{	335	{
290	W w;	336	W w;
291	int events;	337	int events;
292	} ANPENDING;	338	} ANPENDING;
		339
		340	#if EV_USE_INOTIFY
		341	typedef struct
		342	{
		343	WL head;
		344	} ANFS;
		345	#endif
293		346
294	#if EV_MULTIPLICITY	347	#if EV_MULTIPLICITY
295		348
296	struct ev_loop	349	struct ev_loop
297	{	350	{
…		…
354	{	407	{
355	return ev_rt_now;	408	return ev_rt_now;
356	}	409	}
357	#endif	410	#endif
358		411
359	#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	}
360		439
361	#define array_needsize(type,base,cur,cnt,init) \	440	#define array_needsize(type,base,cur,cnt,init) \
362	if (expect_false ((cnt) > cur)) \	441	if (expect_false ((cnt) > (cur))) \
363	{ \	442	{ \
364	int newcnt = cur; \	443	int ocur_ = (cur); \
365	do \	444	(base) = (type *)array_realloc \
366	{ \	445	(sizeof (type), (base), &(cur), (cnt)); \
367	newcnt = array_roundsize (type, newcnt << 1); \	446	init ((base) + (ocur_), (cur) - ocur_); \
368	} \
369	while ((cnt) > newcnt); \
370	\
371	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
372	init (base + cur, newcnt - cur); \
373	cur = newcnt; \
374	}	447	}
375		448
		449	#if 0
376	#define array_slim(type,stem) \	450	#define array_slim(type,stem) \
377	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	451	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
378	{ \	452	{ \
379	stem ## max = array_roundsize (stem ## cnt >> 1); \	453	stem ## max = array_roundsize (stem ## cnt >> 1); \
380	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	454	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
381	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	455	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
382	}	456	}
		457	#endif
383		458
384	#define array_free(stem, idx) \	459	#define array_free(stem, idx) \
385	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;
386		461
387	/*****************************************************************************/	462	/*****************************************************************************/
388		463
389	void noinline	464	void noinline
390	ev_feed_event (EV_P_ void *w, int revents)	465	ev_feed_event (EV_P_ void *w, int revents)
391	{	466	{
392	W w_ = (W)w;	467	W w_ = (W)w;
		468	int pri = ABSPRI (w_);
393		469
394	if (expect_false (w_->pending))	470	if (expect_false (w_->pending))
		471	pendings [pri][w_->pending - 1].events |= revents;
		472	else
395	{	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_;
396	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	477	pendings [pri][w_->pending - 1].events = revents;
397	return;
398	}	478	}
399
400	w_->pending = ++pendingcnt [ABSPRI (w_)];
401	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
402	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
403	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
404	}	479	}
405		480
406	void inline_size	481	void inline_speed
407	queue_events (EV_P_ W *events, int eventcnt, int type)	482	queue_events (EV_P_ W *events, int eventcnt, int type)
408	{	483	{
409	int i;	484	int i;
410		485
411	for (i = 0; i < eventcnt; ++i)	486	for (i = 0; i < eventcnt; ++i)
…		…
443	}	518	}
444		519
445	void	520	void
446	ev_feed_fd_event (EV_P_ int fd, int revents)	521	ev_feed_fd_event (EV_P_ int fd, int revents)
447	{	522	{
		523	if (fd >= 0 && fd < anfdmax)
448	fd_event (EV_A_ fd, revents);	524	fd_event (EV_A_ fd, revents);
449	}	525	}
450		526
451	void inline_size	527	void inline_size
452	fd_reify (EV_P)	528	fd_reify (EV_P)
453	{	529	{
…		…
547	static void noinline	623	static void noinline
548	fd_rearm_all (EV_P)	624	fd_rearm_all (EV_P)
549	{	625	{
550	int fd;	626	int fd;
551		627
552	/* this should be highly optimised to not do anything but set a flag */
553	for (fd = 0; fd < anfdmax; ++fd)	628	for (fd = 0; fd < anfdmax; ++fd)
554	if (anfds [fd].events)	629	if (anfds [fd].events)
555	{	630	{
556	anfds [fd].events = 0;	631	anfds [fd].events = 0;
557	fd_change (EV_A_ fd);	632	fd_change (EV_A_ fd);
…		…
563	void inline_speed	638	void inline_speed
564	upheap (WT *heap, int k)	639	upheap (WT *heap, int k)
565	{	640	{
566	WT w = heap [k];	641	WT w = heap [k];
567		642
568	while (k && heap [k >> 1]->at > w->at)	643	while (k)
569	{	644	{
		645	int p = (k - 1) >> 1;
		646
		647	if (heap [p]->at <= w->at)
		648	break;
		649
570	heap [k] = heap [k >> 1];	650	heap [k] = heap [p];
571	((W)heap [k])->active = k + 1;	651	((W)heap [k])->active = k + 1;
572	k >>= 1;	652	k = p;
573	}	653	}
574		654
575	heap [k] = w;	655	heap [k] = w;
576	((W)heap [k])->active = k + 1;	656	((W)heap [k])->active = k + 1;
577
578	}	657	}
579		658
580	void inline_speed	659	void inline_speed
581	downheap (WT *heap, int N, int k)	660	downheap (WT *heap, int N, int k)
582	{	661	{
583	WT w = heap [k];	662	WT w = heap [k];
584		663
585	while (k < (N >> 1))	664	for (;;)
586	{	665	{
587	int j = k << 1;	666	int c = (k << 1) + 1;
588		667
589	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	668	if (c >= N)
590	++j;
591
592	if (w->at <= heap [j]->at)
593	break;	669	break;
594		670
		671	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		672	? 1 : 0;
		673
		674	if (w->at <= heap [c]->at)
		675	break;
		676
595	heap [k] = heap [j];	677	heap [k] = heap [c];
596	((W)heap [k])->active = k + 1;	678	((W)heap [k])->active = k + 1;
		679
597	k = j;	680	k = c;
598	}	681	}
599		682
600	heap [k] = w;	683	heap [k] = w;
601	((W)heap [k])->active = k + 1;	684	((W)heap [k])->active = k + 1;
602	}	685	}
…		…
684	for (signum = signalmax; signum--; )	767	for (signum = signalmax; signum--; )
685	if (signals [signum].gotsig)	768	if (signals [signum].gotsig)
686	ev_feed_signal_event (EV_A_ signum + 1);	769	ev_feed_signal_event (EV_A_ signum + 1);
687	}	770	}
688		771
689	void inline_size	772	void inline_speed
690	fd_intern (int fd)	773	fd_intern (int fd)
691	{	774	{
692	#ifdef _WIN32	775	#ifdef _WIN32
693	int arg = 1;	776	int arg = 1;
694	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	777	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
709	ev_unref (EV_A); /* child watcher should not keep loop alive */	792	ev_unref (EV_A); /* child watcher should not keep loop alive */
710	}	793	}
711		794
712	/*****************************************************************************/	795	/*****************************************************************************/
713		796
714	static ev_child *childs [PID_HASHSIZE];	797	static ev_child *childs [EV_PID_HASHSIZE];
715		798
716	#ifndef _WIN32	799	#ifndef _WIN32
717		800
718	static ev_signal childev;	801	static ev_signal childev;
		802
		803	void inline_speed
		804	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		805	{
		806	ev_child *w;
		807
		808	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		809	if (w->pid == pid || !w->pid)
		810	{
		811	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		812	w->rpid = pid;
		813	w->rstatus = status;
		814	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		815	}
		816	}
719		817
720	#ifndef WCONTINUED	818	#ifndef WCONTINUED
721	# define WCONTINUED 0	819	# define WCONTINUED 0
722	#endif	820	#endif
723		821
724	void inline_speed
725	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
726	{
727	ev_child *w;
728
729	for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
730	if (w->pid == pid || !w->pid)
731	{
732	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
733	w->rpid = pid;
734	w->rstatus = status;
735	ev_feed_event (EV_A_ (W)w, EV_CHILD);
736	}
737	}
738
739	static void	822	static void
740	childcb (EV_P_ ev_signal *sw, int revents)	823	childcb (EV_P_ ev_signal *sw, int revents)
741	{	824	{
742	int pid, status;	825	int pid, status;
743		826
		827	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
744	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	828	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
745	{	829	if (!WCONTINUED
		830	|| errno != EINVAL
		831	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		832	return;
		833
746	/* make sure we are called again until all childs have been reaped */	834	/* make sure we are called again until all childs have been reaped */
747	/* we need to do it this way so that the callback gets called before we continue */	835	/* we need to do it this way so that the callback gets called before we continue */
748	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	836	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
749		837
750	child_reap (EV_A_ sw, pid, pid, status);	838	child_reap (EV_A_ sw, pid, pid, status);
		839	if (EV_PID_HASHSIZE > 1)
751	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	840	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
752	}
753	}	841	}
754		842
755	#endif	843	#endif
756		844
757	/*****************************************************************************/	845	/*****************************************************************************/
…		…
840	ev_backend (EV_P)	928	ev_backend (EV_P)
841	{	929	{
842	return backend;	930	return backend;
843	}	931	}
844		932
845	static void	933	unsigned int
		934	ev_loop_count (EV_P)
		935	{
		936	return loop_count;
		937	}
		938
		939	static void noinline
846	loop_init (EV_P_ unsigned int flags)	940	loop_init (EV_P_ unsigned int flags)
847	{	941	{
848	if (!backend)	942	if (!backend)
849	{	943	{
850	#if EV_USE_MONOTONIC	944	#if EV_USE_MONOTONIC
…		…
858	ev_rt_now = ev_time ();	952	ev_rt_now = ev_time ();
859	mn_now = get_clock ();	953	mn_now = get_clock ();
860	now_floor = mn_now;	954	now_floor = mn_now;
861	rtmn_diff = ev_rt_now - mn_now;	955	rtmn_diff = ev_rt_now - mn_now;
862		956
		957	/* pid check not overridable via env */
		958	#ifndef _WIN32
		959	if (flags & EVFLAG_FORKCHECK)
		960	curpid = getpid ();
		961	#endif
		962
863	if (!(flags & EVFLAG_NOENV)	963	if (!(flags & EVFLAG_NOENV)
864	&& !enable_secure ()	964	&& !enable_secure ()
865	&& getenv ("LIBEV_FLAGS"))	965	&& getenv ("LIBEV_FLAGS"))
866	flags = atoi (getenv ("LIBEV_FLAGS"));	966	flags = atoi (getenv ("LIBEV_FLAGS"));
867		967
868	if (!(flags & 0x0000ffffUL))	968	if (!(flags & 0x0000ffffUL))
869	flags |= ev_recommended_backends ();	969	flags |= ev_recommended_backends ();
870		970
871	backend = 0;	971	backend = 0;
		972	backend_fd = -1;
		973	#if EV_USE_INOTIFY
		974	fs_fd = -2;
		975	#endif
		976
872	#if EV_USE_PORT	977	#if EV_USE_PORT
873	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	978	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
874	#endif	979	#endif
875	#if EV_USE_KQUEUE	980	#if EV_USE_KQUEUE
876	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	981	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
888	ev_init (&sigev, sigcb);	993	ev_init (&sigev, sigcb);
889	ev_set_priority (&sigev, EV_MAXPRI);	994	ev_set_priority (&sigev, EV_MAXPRI);
890	}	995	}
891	}	996	}
892		997
893	static void	998	static void noinline
894	loop_destroy (EV_P)	999	loop_destroy (EV_P)
895	{	1000	{
896	int i;	1001	int i;
		1002
		1003	#if EV_USE_INOTIFY
		1004	if (fs_fd >= 0)
		1005	close (fs_fd);
		1006	#endif
		1007
		1008	if (backend_fd >= 0)
		1009	close (backend_fd);
897		1010
898	#if EV_USE_PORT	1011	#if EV_USE_PORT
899	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1012	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
900	#endif	1013	#endif
901	#if EV_USE_KQUEUE	1014	#if EV_USE_KQUEUE
…		…
910	#if EV_USE_SELECT	1023	#if EV_USE_SELECT
911	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1024	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
912	#endif	1025	#endif
913		1026
914	for (i = NUMPRI; i--; )	1027	for (i = NUMPRI; i--; )
		1028	{
915	array_free (pending, [i]);	1029	array_free (pending, [i]);
		1030	#if EV_IDLE_ENABLE
		1031	array_free (idle, [i]);
		1032	#endif
		1033	}
916		1034
917	/* have to use the microsoft-never-gets-it-right macro */	1035	/* have to use the microsoft-never-gets-it-right macro */
918	array_free (fdchange, EMPTY0);	1036	array_free (fdchange, EMPTY);
919	array_free (timer, EMPTY0);	1037	array_free (timer, EMPTY);
920	#if EV_PERIODIC_ENABLE	1038	#if EV_PERIODIC_ENABLE
921	array_free (periodic, EMPTY0);	1039	array_free (periodic, EMPTY);
922	#endif	1040	#endif
923	array_free (idle, EMPTY0);
924	array_free (prepare, EMPTY0);	1041	array_free (prepare, EMPTY);
925	array_free (check, EMPTY0);	1042	array_free (check, EMPTY);
926		1043
927	backend = 0;	1044	backend = 0;
928	}	1045	}
929		1046
930	static void	1047	void inline_size infy_fork (EV_P);
		1048
		1049	void inline_size
931	loop_fork (EV_P)	1050	loop_fork (EV_P)
932	{	1051	{
933	#if EV_USE_PORT	1052	#if EV_USE_PORT
934	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1053	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
935	#endif	1054	#endif
936	#if EV_USE_KQUEUE	1055	#if EV_USE_KQUEUE
937	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1056	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
938	#endif	1057	#endif
939	#if EV_USE_EPOLL	1058	#if EV_USE_EPOLL
940	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1059	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1060	#endif
		1061	#if EV_USE_INOTIFY
		1062	infy_fork (EV_A);
941	#endif	1063	#endif
942		1064
943	if (ev_is_active (&sigev))	1065	if (ev_is_active (&sigev))
944	{	1066	{
945	/* default loop */	1067	/* default loop */
…		…
1061	postfork = 1;	1183	postfork = 1;
1062	}	1184	}
1063		1185
1064	/*****************************************************************************/	1186	/*****************************************************************************/
1065		1187
1066	int inline_size	1188	void
1067	any_pending (EV_P)	1189	ev_invoke (EV_P_ void *w, int revents)
1068	{	1190	{
1069	int pri;	1191	EV_CB_INVOKE ((W)w, revents);
1070
1071	for (pri = NUMPRI; pri--; )
1072	if (pendingcnt [pri])
1073	return 1;
1074
1075	return 0;
1076	}	1192	}
1077		1193
1078	void inline_speed	1194	void inline_speed
1079	call_pending (EV_P)	1195	call_pending (EV_P)
1080	{	1196	{
…		…
1085	{	1201	{
1086	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1202	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1087		1203
1088	if (expect_true (p->w))	1204	if (expect_true (p->w))
1089	{	1205	{
1090	assert (("non-pending watcher on pending list", p->w->pending));	1206	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1091		1207
1092	p->w->pending = 0;	1208	p->w->pending = 0;
1093	EV_CB_INVOKE (p->w, p->events);	1209	EV_CB_INVOKE (p->w, p->events);
1094	}	1210	}
1095	}	1211	}
…		…
1098	void inline_size	1214	void inline_size
1099	timers_reify (EV_P)	1215	timers_reify (EV_P)
1100	{	1216	{
1101	while (timercnt && ((WT)timers [0])->at <= mn_now)	1217	while (timercnt && ((WT)timers [0])->at <= mn_now)
1102	{	1218	{
1103	ev_timer *w = timers [0];	1219	ev_timer *w = (ev_timer *)timers [0];
1104		1220
1105	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1221	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1106		1222
1107	/* first reschedule or stop timer */	1223	/* first reschedule or stop timer */
1108	if (w->repeat)	1224	if (w->repeat)
1109	{	1225	{
1110	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1226	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1111		1227
1112	((WT)w)->at += w->repeat;	1228	((WT)w)->at += w->repeat;
1113	if (((WT)w)->at < mn_now)	1229	if (((WT)w)->at < mn_now)
1114	((WT)w)->at = mn_now;	1230	((WT)w)->at = mn_now;
1115		1231
1116	downheap ((WT *)timers, timercnt, 0);	1232	downheap (timers, timercnt, 0);
1117	}	1233	}
1118	else	1234	else
1119	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1235	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1120		1236
1121	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1237	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1126	void inline_size	1242	void inline_size
1127	periodics_reify (EV_P)	1243	periodics_reify (EV_P)
1128	{	1244	{
1129	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1245	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1130	{	1246	{
1131	ev_periodic *w = periodics [0];	1247	ev_periodic *w = (ev_periodic *)periodics [0];
1132		1248
1133	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1249	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1134		1250
1135	/* first reschedule or stop timer */	1251	/* first reschedule or stop timer */
1136	if (w->reschedule_cb)	1252	if (w->reschedule_cb)
1137	{	1253	{
1138	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1254	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1139	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1255	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1140	downheap ((WT *)periodics, periodiccnt, 0);	1256	downheap (periodics, periodiccnt, 0);
1141	}	1257	}
1142	else if (w->interval)	1258	else if (w->interval)
1143	{	1259	{
1144	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1260	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1261	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1145	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1262	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1146	downheap ((WT *)periodics, periodiccnt, 0);	1263	downheap (periodics, periodiccnt, 0);
1147	}	1264	}
1148	else	1265	else
1149	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1266	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1150		1267
1151	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1268	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1158	int i;	1275	int i;
1159		1276
1160	/* adjust periodics after time jump */	1277	/* adjust periodics after time jump */
1161	for (i = 0; i < periodiccnt; ++i)	1278	for (i = 0; i < periodiccnt; ++i)
1162	{	1279	{
1163	ev_periodic *w = periodics [i];	1280	ev_periodic *w = (ev_periodic *)periodics [i];
1164		1281
1165	if (w->reschedule_cb)	1282	if (w->reschedule_cb)
1166	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1283	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1167	else if (w->interval)	1284	else if (w->interval)
1168	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1285	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1169	}	1286	}
1170		1287
1171	/* now rebuild the heap */	1288	/* now rebuild the heap */
1172	for (i = periodiccnt >> 1; i--; )	1289	for (i = periodiccnt >> 1; i--; )
1173	downheap ((WT *)periodics, periodiccnt, i);	1290	downheap (periodics, periodiccnt, i);
1174	}	1291	}
1175	#endif	1292	#endif
1176		1293
		1294	#if EV_IDLE_ENABLE
1177	int inline_size	1295	void inline_size
1178	time_update_monotonic (EV_P)	1296	idle_reify (EV_P)
1179	{	1297	{
		1298	if (expect_false (idleall))
		1299	{
		1300	int pri;
		1301
		1302	for (pri = NUMPRI; pri--; )
		1303	{
		1304	if (pendingcnt [pri])
		1305	break;
		1306
		1307	if (idlecnt [pri])
		1308	{
		1309	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1310	break;
		1311	}
		1312	}
		1313	}
		1314	}
		1315	#endif
		1316
		1317	void inline_speed
		1318	time_update (EV_P_ ev_tstamp max_block)
		1319	{
		1320	int i;
		1321
		1322	#if EV_USE_MONOTONIC
		1323	if (expect_true (have_monotonic))
		1324	{
		1325	ev_tstamp odiff = rtmn_diff;
		1326
1180	mn_now = get_clock ();	1327	mn_now = get_clock ();
1181		1328
		1329	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1330	/* interpolate in the meantime */
1182	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1331	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1183	{	1332	{
1184	ev_rt_now = rtmn_diff + mn_now;	1333	ev_rt_now = rtmn_diff + mn_now;
1185	return 0;	1334	return;
1186	}	1335	}
1187	else	1336
1188	{
1189	now_floor = mn_now;	1337	now_floor = mn_now;
1190	ev_rt_now = ev_time ();	1338	ev_rt_now = ev_time ();
1191	return 1;
1192	}
1193	}
1194		1339
1195	void inline_size	1340	/* loop a few times, before making important decisions.
1196	time_update (EV_P)	1341	* on the choice of "4": one iteration isn't enough,
1197	{	1342	* in case we get preempted during the calls to
1198	int i;	1343	* ev_time and get_clock. a second call is almost guaranteed
1199		1344	* to succeed in that case, though. and looping a few more times
1200	#if EV_USE_MONOTONIC	1345	* doesn't hurt either as we only do this on time-jumps or
1201	if (expect_true (have_monotonic))	1346	* in the unlikely event of having been preempted here.
1202	{	1347	*/
1203	if (time_update_monotonic (EV_A))	1348	for (i = 4; --i; )
1204	{	1349	{
1205	ev_tstamp odiff = rtmn_diff;
1206
1207	/* loop a few times, before making important decisions.
1208	* on the choice of "4": one iteration isn't enough,
1209	* in case we get preempted during the calls to
1210	* ev_time and get_clock. a second call is almost guarenteed
1211	* to succeed in that case, though. and looping a few more times
1212	* doesn't hurt either as we only do this on time-jumps or
1213	* in the unlikely event of getting preempted here.
1214	*/
1215	for (i = 4; --i; )
1216	{
1217	rtmn_diff = ev_rt_now - mn_now;	1350	rtmn_diff = ev_rt_now - mn_now;
1218		1351
1219	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1352	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1220	return; /* all is well */	1353	return; /* all is well */
1221		1354
1222	ev_rt_now = ev_time ();	1355	ev_rt_now = ev_time ();
1223	mn_now = get_clock ();	1356	mn_now = get_clock ();
1224	now_floor = mn_now;	1357	now_floor = mn_now;
1225	}	1358	}
1226		1359
1227	# if EV_PERIODIC_ENABLE	1360	# if EV_PERIODIC_ENABLE
1228	periodics_reschedule (EV_A);	1361	periodics_reschedule (EV_A);
1229	# endif	1362	# endif
1230	/* no timer adjustment, as the monotonic clock doesn't jump */	1363	/* no timer adjustment, as the monotonic clock doesn't jump */
1231	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1364	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1232	}
1233	}	1365	}
1234	else	1366	else
1235	#endif	1367	#endif
1236	{	1368	{
1237	ev_rt_now = ev_time ();	1369	ev_rt_now = ev_time ();
1238		1370
1239	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1371	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1240	{	1372	{
1241	#if EV_PERIODIC_ENABLE	1373	#if EV_PERIODIC_ENABLE
1242	periodics_reschedule (EV_A);	1374	periodics_reschedule (EV_A);
1243	#endif	1375	#endif
1244
1245	/* adjust timers. this is easy, as the offset is the same for all */	1376	/* adjust timers. this is easy, as the offset is the same for all of them */
1246	for (i = 0; i < timercnt; ++i)	1377	for (i = 0; i < timercnt; ++i)
1247	((WT)timers [i])->at += ev_rt_now - mn_now;	1378	((WT)timers [i])->at += ev_rt_now - mn_now;
1248	}	1379	}
1249		1380
1250	mn_now = ev_rt_now;	1381	mn_now = ev_rt_now;
…		…
1270	{	1401	{
1271	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1402	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1272	? EVUNLOOP_ONE	1403	? EVUNLOOP_ONE
1273	: EVUNLOOP_CANCEL;	1404	: EVUNLOOP_CANCEL;
1274		1405
1275	while (activecnt)	1406	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1407
		1408	do
1276	{	1409	{
		1410	#ifndef _WIN32
		1411	if (expect_false (curpid)) /* penalise the forking check even more */
		1412	if (expect_false (getpid () != curpid))
		1413	{
		1414	curpid = getpid ();
		1415	postfork = 1;
		1416	}
		1417	#endif
		1418
		1419	#if EV_FORK_ENABLE
		1420	/* we might have forked, so queue fork handlers */
		1421	if (expect_false (postfork))
		1422	if (forkcnt)
		1423	{
		1424	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1425	call_pending (EV_A);
		1426	}
		1427	#endif
		1428
1277	/* queue check watchers (and execute them) */	1429	/* queue prepare watchers (and execute them) */
1278	if (expect_false (preparecnt))	1430	if (expect_false (preparecnt))
1279	{	1431	{
1280	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1432	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1281	call_pending (EV_A);	1433	call_pending (EV_A);
1282	}	1434	}
1283		1435
		1436	if (expect_false (!activecnt))
		1437	break;
		1438
1284	/* we might have forked, so reify kernel state if necessary */	1439	/* we might have forked, so reify kernel state if necessary */
1285	if (expect_false (postfork))	1440	if (expect_false (postfork))
1286	loop_fork (EV_A);	1441	loop_fork (EV_A);
1287		1442
1288	/* update fd-related kernel structures */	1443	/* update fd-related kernel structures */
1289	fd_reify (EV_A);	1444	fd_reify (EV_A);
1290		1445
1291	/* calculate blocking time */	1446	/* calculate blocking time */
1292	{	1447	{
1293	double block;	1448	ev_tstamp block;
1294		1449
1295	if (flags & EVLOOP_NONBLOCK || idlecnt)	1450	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1296	block = 0.; /* do not block at all */	1451	block = 0.; /* do not block at all */
1297	else	1452	else
1298	{	1453	{
1299	/* update time to cancel out callback processing overhead */	1454	/* update time to cancel out callback processing overhead */
1300	#if EV_USE_MONOTONIC
1301	if (expect_true (have_monotonic))
1302	time_update_monotonic (EV_A);	1455	time_update (EV_A_ 1e100);
1303	else
1304	#endif
1305	{
1306	ev_rt_now = ev_time ();
1307	mn_now = ev_rt_now;
1308	}
1309		1456
1310	block = MAX_BLOCKTIME;	1457	block = MAX_BLOCKTIME;
1311		1458
1312	if (timercnt)	1459	if (timercnt)
1313	{	1460	{
…		…
1324	#endif	1471	#endif
1325		1472
1326	if (expect_false (block < 0.)) block = 0.;	1473	if (expect_false (block < 0.)) block = 0.;
1327	}	1474	}
1328		1475
		1476	++loop_count;
1329	backend_poll (EV_A_ block);	1477	backend_poll (EV_A_ block);
		1478
		1479	/* update ev_rt_now, do magic */
		1480	time_update (EV_A_ block);
1330	}	1481	}
1331
1332	/* update ev_rt_now, do magic */
1333	time_update (EV_A);
1334		1482
1335	/* queue pending timers and reschedule them */	1483	/* queue pending timers and reschedule them */
1336	timers_reify (EV_A); /* relative timers called last */	1484	timers_reify (EV_A); /* relative timers called last */
1337	#if EV_PERIODIC_ENABLE	1485	#if EV_PERIODIC_ENABLE
1338	periodics_reify (EV_A); /* absolute timers called first */	1486	periodics_reify (EV_A); /* absolute timers called first */
1339	#endif	1487	#endif
1340		1488
		1489	#if EV_IDLE_ENABLE
1341	/* queue idle watchers unless other events are pending */	1490	/* queue idle watchers unless other events are pending */
1342	if (idlecnt && !any_pending (EV_A))	1491	idle_reify (EV_A);
1343	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1492	#endif
1344		1493
1345	/* queue check watchers, to be executed first */	1494	/* queue check watchers, to be executed first */
1346	if (expect_false (checkcnt))	1495	if (expect_false (checkcnt))
1347	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1496	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1348		1497
1349	call_pending (EV_A);	1498	call_pending (EV_A);
1350		1499
1351	if (expect_false (loop_done))
1352	break;
1353	}	1500	}
		1501	while (expect_true (activecnt && !loop_done));
1354		1502
1355	if (loop_done == EVUNLOOP_ONE)	1503	if (loop_done == EVUNLOOP_ONE)
1356	loop_done = EVUNLOOP_CANCEL;	1504	loop_done = EVUNLOOP_CANCEL;
1357	}	1505	}
1358		1506
…		…
1385	head = &(*head)->next;	1533	head = &(*head)->next;
1386	}	1534	}
1387	}	1535	}
1388		1536
1389	void inline_speed	1537	void inline_speed
1390	ev_clear_pending (EV_P_ W w)	1538	clear_pending (EV_P_ W w)
1391	{	1539	{
1392	if (w->pending)	1540	if (w->pending)
1393	{	1541	{
1394	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1542	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1395	w->pending = 0;	1543	w->pending = 0;
1396	}	1544	}
1397	}	1545	}
1398		1546
		1547	int
		1548	ev_clear_pending (EV_P_ void *w)
		1549	{
		1550	W w_ = (W)w;
		1551	int pending = w_->pending;
		1552
		1553	if (expect_true (pending))
		1554	{
		1555	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1556	w_->pending = 0;
		1557	p->w = 0;
		1558	return p->events;
		1559	}
		1560	else
		1561	return 0;
		1562	}
		1563
		1564	void inline_size
		1565	pri_adjust (EV_P_ W w)
		1566	{
		1567	int pri = w->priority;
		1568	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1569	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1570	w->priority = pri;
		1571	}
		1572
1399	void inline_speed	1573	void inline_speed
1400	ev_start (EV_P_ W w, int active)	1574	ev_start (EV_P_ W w, int active)
1401	{	1575	{
1402	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1576	pri_adjust (EV_A_ w);
1403	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1404
1405	w->active = active;	1577	w->active = active;
1406	ev_ref (EV_A);	1578	ev_ref (EV_A);
1407	}	1579	}
1408		1580
1409	void inline_size	1581	void inline_size
…		…
1413	w->active = 0;	1585	w->active = 0;
1414	}	1586	}
1415		1587
1416	/*****************************************************************************/	1588	/*****************************************************************************/
1417		1589
1418	void	1590	void noinline
1419	ev_io_start (EV_P_ ev_io *w)	1591	ev_io_start (EV_P_ ev_io *w)
1420	{	1592	{
1421	int fd = w->fd;	1593	int fd = w->fd;
1422		1594
1423	if (expect_false (ev_is_active (w)))	1595	if (expect_false (ev_is_active (w)))
…		…
1430	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1602	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1431		1603
1432	fd_change (EV_A_ fd);	1604	fd_change (EV_A_ fd);
1433	}	1605	}
1434		1606
1435	void	1607	void noinline
1436	ev_io_stop (EV_P_ ev_io *w)	1608	ev_io_stop (EV_P_ ev_io *w)
1437	{	1609	{
1438	ev_clear_pending (EV_A_ (W)w);	1610	clear_pending (EV_A_ (W)w);
1439	if (expect_false (!ev_is_active (w)))	1611	if (expect_false (!ev_is_active (w)))
1440	return;	1612	return;
1441		1613
1442	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1614	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1443		1615
…		…
1445	ev_stop (EV_A_ (W)w);	1617	ev_stop (EV_A_ (W)w);
1446		1618
1447	fd_change (EV_A_ w->fd);	1619	fd_change (EV_A_ w->fd);
1448	}	1620	}
1449		1621
1450	void	1622	void noinline
1451	ev_timer_start (EV_P_ ev_timer *w)	1623	ev_timer_start (EV_P_ ev_timer *w)
1452	{	1624	{
1453	if (expect_false (ev_is_active (w)))	1625	if (expect_false (ev_is_active (w)))
1454	return;	1626	return;
1455		1627
1456	((WT)w)->at += mn_now;	1628	((WT)w)->at += mn_now;
1457		1629
1458	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1630	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1459		1631
1460	ev_start (EV_A_ (W)w, ++timercnt);	1632	ev_start (EV_A_ (W)w, ++timercnt);
1461	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1633	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1462	timers [timercnt - 1] = w;	1634	timers [timercnt - 1] = (WT)w;
1463	upheap ((WT *)timers, timercnt - 1);	1635	upheap (timers, timercnt - 1);
1464		1636
1465	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1637	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1466	}	1638	}
1467		1639
1468	void	1640	void noinline
1469	ev_timer_stop (EV_P_ ev_timer *w)	1641	ev_timer_stop (EV_P_ ev_timer *w)
1470	{	1642	{
1471	ev_clear_pending (EV_A_ (W)w);	1643	clear_pending (EV_A_ (W)w);
1472	if (expect_false (!ev_is_active (w)))	1644	if (expect_false (!ev_is_active (w)))
1473	return;	1645	return;
1474		1646
1475	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1647	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1476		1648
		1649	{
		1650	int active = ((W)w)->active;
		1651
1477	if (expect_true (((W)w)->active < timercnt--))	1652	if (expect_true (--active < --timercnt))
1478	{	1653	{
1479	timers [((W)w)->active - 1] = timers [timercnt];	1654	timers [active] = timers [timercnt];
1480	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1655	adjustheap (timers, timercnt, active);
1481	}	1656	}
		1657	}
1482		1658
1483	((WT)w)->at -= mn_now;	1659	((WT)w)->at -= mn_now;
1484		1660
1485	ev_stop (EV_A_ (W)w);	1661	ev_stop (EV_A_ (W)w);
1486	}	1662	}
1487		1663
1488	void	1664	void noinline
1489	ev_timer_again (EV_P_ ev_timer *w)	1665	ev_timer_again (EV_P_ ev_timer *w)
1490	{	1666	{
1491	if (ev_is_active (w))	1667	if (ev_is_active (w))
1492	{	1668	{
1493	if (w->repeat)	1669	if (w->repeat)
1494	{	1670	{
1495	((WT)w)->at = mn_now + w->repeat;	1671	((WT)w)->at = mn_now + w->repeat;
1496	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1672	adjustheap (timers, timercnt, ((W)w)->active - 1);
1497	}	1673	}
1498	else	1674	else
1499	ev_timer_stop (EV_A_ w);	1675	ev_timer_stop (EV_A_ w);
1500	}	1676	}
1501	else if (w->repeat)	1677	else if (w->repeat)
…		…
1504	ev_timer_start (EV_A_ w);	1680	ev_timer_start (EV_A_ w);
1505	}	1681	}
1506	}	1682	}
1507		1683
1508	#if EV_PERIODIC_ENABLE	1684	#if EV_PERIODIC_ENABLE
1509	void	1685	void noinline
1510	ev_periodic_start (EV_P_ ev_periodic *w)	1686	ev_periodic_start (EV_P_ ev_periodic *w)
1511	{	1687	{
1512	if (expect_false (ev_is_active (w)))	1688	if (expect_false (ev_is_active (w)))
1513	return;	1689	return;
1514		1690
…		…
1516	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1692	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1517	else if (w->interval)	1693	else if (w->interval)
1518	{	1694	{
1519	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1695	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1520	/* this formula differs from the one in periodic_reify because we do not always round up */	1696	/* this formula differs from the one in periodic_reify because we do not always round up */
1521	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1697	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1522	}	1698	}
		1699	else
		1700	((WT)w)->at = w->offset;
1523		1701
1524	ev_start (EV_A_ (W)w, ++periodiccnt);	1702	ev_start (EV_A_ (W)w, ++periodiccnt);
1525	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1703	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1526	periodics [periodiccnt - 1] = w;	1704	periodics [periodiccnt - 1] = (WT)w;
1527	upheap ((WT *)periodics, periodiccnt - 1);	1705	upheap (periodics, periodiccnt - 1);
1528		1706
1529	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1707	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1530	}	1708	}
1531		1709
1532	void	1710	void noinline
1533	ev_periodic_stop (EV_P_ ev_periodic *w)	1711	ev_periodic_stop (EV_P_ ev_periodic *w)
1534	{	1712	{
1535	ev_clear_pending (EV_A_ (W)w);	1713	clear_pending (EV_A_ (W)w);
1536	if (expect_false (!ev_is_active (w)))	1714	if (expect_false (!ev_is_active (w)))
1537	return;	1715	return;
1538		1716
1539	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1717	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1540		1718
		1719	{
		1720	int active = ((W)w)->active;
		1721
1541	if (expect_true (((W)w)->active < periodiccnt--))	1722	if (expect_true (--active < --periodiccnt))
1542	{	1723	{
1543	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1724	periodics [active] = periodics [periodiccnt];
1544	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1725	adjustheap (periodics, periodiccnt, active);
1545	}	1726	}
		1727	}
1546		1728
1547	ev_stop (EV_A_ (W)w);	1729	ev_stop (EV_A_ (W)w);
1548	}	1730	}
1549		1731
1550	void	1732	void noinline
1551	ev_periodic_again (EV_P_ ev_periodic *w)	1733	ev_periodic_again (EV_P_ ev_periodic *w)
1552	{	1734	{
1553	/* TODO: use adjustheap and recalculation */	1735	/* TODO: use adjustheap and recalculation */
1554	ev_periodic_stop (EV_A_ w);	1736	ev_periodic_stop (EV_A_ w);
1555	ev_periodic_start (EV_A_ w);	1737	ev_periodic_start (EV_A_ w);
1556	}	1738	}
1557	#endif	1739	#endif
1558		1740
1559	void
1560	ev_idle_start (EV_P_ ev_idle *w)
1561	{
1562	if (expect_false (ev_is_active (w)))
1563	return;
1564
1565	ev_start (EV_A_ (W)w, ++idlecnt);
1566	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1567	idles [idlecnt - 1] = w;
1568	}
1569
1570	void
1571	ev_idle_stop (EV_P_ ev_idle *w)
1572	{
1573	ev_clear_pending (EV_A_ (W)w);
1574	if (expect_false (!ev_is_active (w)))
1575	return;
1576
1577	{
1578	int active = ((W)w)->active;
1579	idles [active - 1] = idles [--idlecnt];
1580	((W)idles [active - 1])->active = active;
1581	}
1582
1583	ev_stop (EV_A_ (W)w);
1584	}
1585
1586	void
1587	ev_prepare_start (EV_P_ ev_prepare *w)
1588	{
1589	if (expect_false (ev_is_active (w)))
1590	return;
1591
1592	ev_start (EV_A_ (W)w, ++preparecnt);
1593	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1594	prepares [preparecnt - 1] = w;
1595	}
1596
1597	void
1598	ev_prepare_stop (EV_P_ ev_prepare *w)
1599	{
1600	ev_clear_pending (EV_A_ (W)w);
1601	if (expect_false (!ev_is_active (w)))
1602	return;
1603
1604	{
1605	int active = ((W)w)->active;
1606	prepares [active - 1] = prepares [--preparecnt];
1607	((W)prepares [active - 1])->active = active;
1608	}
1609
1610	ev_stop (EV_A_ (W)w);
1611	}
1612
1613	void
1614	ev_check_start (EV_P_ ev_check *w)
1615	{
1616	if (expect_false (ev_is_active (w)))
1617	return;
1618
1619	ev_start (EV_A_ (W)w, ++checkcnt);
1620	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1621	checks [checkcnt - 1] = w;
1622	}
1623
1624	void
1625	ev_check_stop (EV_P_ ev_check *w)
1626	{
1627	ev_clear_pending (EV_A_ (W)w);
1628	if (expect_false (!ev_is_active (w)))
1629	return;
1630
1631	{
1632	int active = ((W)w)->active;
1633	checks [active - 1] = checks [--checkcnt];
1634	((W)checks [active - 1])->active = active;
1635	}
1636
1637	ev_stop (EV_A_ (W)w);
1638	}
1639
1640	#ifndef SA_RESTART	1741	#ifndef SA_RESTART
1641	# define SA_RESTART 0	1742	# define SA_RESTART 0
1642	#endif	1743	#endif
1643		1744
1644	void	1745	void noinline
1645	ev_signal_start (EV_P_ ev_signal *w)	1746	ev_signal_start (EV_P_ ev_signal *w)
1646	{	1747	{
1647	#if EV_MULTIPLICITY	1748	#if EV_MULTIPLICITY
1648	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1749	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1649	#endif	1750	#endif
1650	if (expect_false (ev_is_active (w)))	1751	if (expect_false (ev_is_active (w)))
1651	return;	1752	return;
1652		1753
1653	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1754	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1654		1755
		1756	{
		1757	#ifndef _WIN32
		1758	sigset_t full, prev;
		1759	sigfillset (&full);
		1760	sigprocmask (SIG_SETMASK, &full, &prev);
		1761	#endif
		1762
		1763	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1764
		1765	#ifndef _WIN32
		1766	sigprocmask (SIG_SETMASK, &prev, 0);
		1767	#endif
		1768	}
		1769
1655	ev_start (EV_A_ (W)w, 1);	1770	ev_start (EV_A_ (W)w, 1);
1656	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1657	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1771	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1658		1772
1659	if (!((WL)w)->next)	1773	if (!((WL)w)->next)
1660	{	1774	{
1661	#if _WIN32	1775	#if _WIN32
…		…
1668	sigaction (w->signum, &sa, 0);	1782	sigaction (w->signum, &sa, 0);
1669	#endif	1783	#endif
1670	}	1784	}
1671	}	1785	}
1672		1786
1673	void	1787	void noinline
1674	ev_signal_stop (EV_P_ ev_signal *w)	1788	ev_signal_stop (EV_P_ ev_signal *w)
1675	{	1789	{
1676	ev_clear_pending (EV_A_ (W)w);	1790	clear_pending (EV_A_ (W)w);
1677	if (expect_false (!ev_is_active (w)))	1791	if (expect_false (!ev_is_active (w)))
1678	return;	1792	return;
1679		1793
1680	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1794	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1681	ev_stop (EV_A_ (W)w);	1795	ev_stop (EV_A_ (W)w);
…		…
1692	#endif	1806	#endif
1693	if (expect_false (ev_is_active (w)))	1807	if (expect_false (ev_is_active (w)))
1694	return;	1808	return;
1695		1809
1696	ev_start (EV_A_ (W)w, 1);	1810	ev_start (EV_A_ (W)w, 1);
1697	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1811	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1698	}	1812	}
1699		1813
1700	void	1814	void
1701	ev_child_stop (EV_P_ ev_child *w)	1815	ev_child_stop (EV_P_ ev_child *w)
1702	{	1816	{
1703	ev_clear_pending (EV_A_ (W)w);	1817	clear_pending (EV_A_ (W)w);
1704	if (expect_false (!ev_is_active (w)))	1818	if (expect_false (!ev_is_active (w)))
1705	return;	1819	return;
1706		1820
1707	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1821	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		1822	ev_stop (EV_A_ (W)w);
		1823	}
		1824
		1825	#if EV_STAT_ENABLE
		1826
		1827	# ifdef _WIN32
		1828	# undef lstat
		1829	# define lstat(a,b) _stati64 (a,b)
		1830	# endif
		1831
		1832	#define DEF_STAT_INTERVAL 5.0074891
		1833	#define MIN_STAT_INTERVAL 0.1074891
		1834
		1835	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1836
		1837	#if EV_USE_INOTIFY
		1838	# define EV_INOTIFY_BUFSIZE 8192
		1839
		1840	static void noinline
		1841	infy_add (EV_P_ ev_stat *w)
		1842	{
		1843	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);
		1844
		1845	if (w->wd < 0)
		1846	{
		1847	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1848
		1849	/* monitor some parent directory for speedup hints */
		1850	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1851	{
		1852	char path [4096];
		1853	strcpy (path, w->path);
		1854
		1855	do
		1856	{
		1857	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1858	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1859
		1860	char *pend = strrchr (path, '/');
		1861
		1862	if (!pend)
		1863	break; /* whoops, no '/', complain to your admin */
		1864
		1865	*pend = 0;
		1866	w->wd = inotify_add_watch (fs_fd, path, mask);
		1867	}
		1868	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1869	}
		1870	}
		1871	else
		1872	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1873
		1874	if (w->wd >= 0)
		1875	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1876	}
		1877
		1878	static void noinline
		1879	infy_del (EV_P_ ev_stat *w)
		1880	{
		1881	int slot;
		1882	int wd = w->wd;
		1883
		1884	if (wd < 0)
		1885	return;
		1886
		1887	w->wd = -2;
		1888	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1889	wlist_del (&fs_hash [slot].head, (WL)w);
		1890
		1891	/* remove this watcher, if others are watching it, they will rearm */
		1892	inotify_rm_watch (fs_fd, wd);
		1893	}
		1894
		1895	static void noinline
		1896	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1897	{
		1898	if (slot < 0)
		1899	/* overflow, need to check for all hahs slots */
		1900	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1901	infy_wd (EV_A_ slot, wd, ev);
		1902	else
		1903	{
		1904	WL w_;
		1905
		1906	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1907	{
		1908	ev_stat *w = (ev_stat *)w_;
		1909	w_ = w_->next; /* lets us remove this watcher and all before it */
		1910
		1911	if (w->wd == wd || wd == -1)
		1912	{
		1913	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1914	{
		1915	w->wd = -1;
		1916	infy_add (EV_A_ w); /* re-add, no matter what */
		1917	}
		1918
		1919	stat_timer_cb (EV_A_ &w->timer, 0);
		1920	}
		1921	}
		1922	}
		1923	}
		1924
		1925	static void
		1926	infy_cb (EV_P_ ev_io *w, int revents)
		1927	{
		1928	char buf [EV_INOTIFY_BUFSIZE];
		1929	struct inotify_event *ev = (struct inotify_event *)buf;
		1930	int ofs;
		1931	int len = read (fs_fd, buf, sizeof (buf));
		1932
		1933	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1934	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1935	}
		1936
		1937	void inline_size
		1938	infy_init (EV_P)
		1939	{
		1940	if (fs_fd != -2)
		1941	return;
		1942
		1943	fs_fd = inotify_init ();
		1944
		1945	if (fs_fd >= 0)
		1946	{
		1947	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1948	ev_set_priority (&fs_w, EV_MAXPRI);
		1949	ev_io_start (EV_A_ &fs_w);
		1950	}
		1951	}
		1952
		1953	void inline_size
		1954	infy_fork (EV_P)
		1955	{
		1956	int slot;
		1957
		1958	if (fs_fd < 0)
		1959	return;
		1960
		1961	close (fs_fd);
		1962	fs_fd = inotify_init ();
		1963
		1964	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1965	{
		1966	WL w_ = fs_hash [slot].head;
		1967	fs_hash [slot].head = 0;
		1968
		1969	while (w_)
		1970	{
		1971	ev_stat *w = (ev_stat *)w_;
		1972	w_ = w_->next; /* lets us add this watcher */
		1973
		1974	w->wd = -1;
		1975
		1976	if (fs_fd >= 0)
		1977	infy_add (EV_A_ w); /* re-add, no matter what */
		1978	else
		1979	ev_timer_start (EV_A_ &w->timer);
		1980	}
		1981
		1982	}
		1983	}
		1984
		1985	#endif
		1986
		1987	void
		1988	ev_stat_stat (EV_P_ ev_stat *w)
		1989	{
		1990	if (lstat (w->path, &w->attr) < 0)
		1991	w->attr.st_nlink = 0;
		1992	else if (!w->attr.st_nlink)
		1993	w->attr.st_nlink = 1;
		1994	}
		1995
		1996	static void noinline
		1997	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		1998	{
		1999	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2000
		2001	/* we copy this here each the time so that */
		2002	/* prev has the old value when the callback gets invoked */
		2003	w->prev = w->attr;
		2004	ev_stat_stat (EV_A_ w);
		2005
		2006	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2007	if (
		2008	w->prev.st_dev != w->attr.st_dev
		2009	|| w->prev.st_ino != w->attr.st_ino
		2010	|| w->prev.st_mode != w->attr.st_mode
		2011	|| w->prev.st_nlink != w->attr.st_nlink
		2012	|| w->prev.st_uid != w->attr.st_uid
		2013	|| w->prev.st_gid != w->attr.st_gid
		2014	|| w->prev.st_rdev != w->attr.st_rdev
		2015	|| w->prev.st_size != w->attr.st_size
		2016	|| w->prev.st_atime != w->attr.st_atime
		2017	|| w->prev.st_mtime != w->attr.st_mtime
		2018	|| w->prev.st_ctime != w->attr.st_ctime
		2019	) {
		2020	#if EV_USE_INOTIFY
		2021	infy_del (EV_A_ w);
		2022	infy_add (EV_A_ w);
		2023	ev_stat_stat (EV_A_ w); /* avoid race... */
		2024	#endif
		2025
		2026	ev_feed_event (EV_A_ w, EV_STAT);
		2027	}
		2028	}
		2029
		2030	void
		2031	ev_stat_start (EV_P_ ev_stat *w)
		2032	{
		2033	if (expect_false (ev_is_active (w)))
		2034	return;
		2035
		2036	/* since we use memcmp, we need to clear any padding data etc. */
		2037	memset (&w->prev, 0, sizeof (ev_statdata));
		2038	memset (&w->attr, 0, sizeof (ev_statdata));
		2039
		2040	ev_stat_stat (EV_A_ w);
		2041
		2042	if (w->interval < MIN_STAT_INTERVAL)
		2043	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2044
		2045	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2046	ev_set_priority (&w->timer, ev_priority (w));
		2047
		2048	#if EV_USE_INOTIFY
		2049	infy_init (EV_A);
		2050
		2051	if (fs_fd >= 0)
		2052	infy_add (EV_A_ w);
		2053	else
		2054	#endif
		2055	ev_timer_start (EV_A_ &w->timer);
		2056
		2057	ev_start (EV_A_ (W)w, 1);
		2058	}
		2059
		2060	void
		2061	ev_stat_stop (EV_P_ ev_stat *w)
		2062	{
		2063	clear_pending (EV_A_ (W)w);
		2064	if (expect_false (!ev_is_active (w)))
		2065	return;
		2066
		2067	#if EV_USE_INOTIFY
		2068	infy_del (EV_A_ w);
		2069	#endif
		2070	ev_timer_stop (EV_A_ &w->timer);
		2071
		2072	ev_stop (EV_A_ (W)w);
		2073	}
		2074	#endif
		2075
		2076	#if EV_IDLE_ENABLE
		2077	void
		2078	ev_idle_start (EV_P_ ev_idle *w)
		2079	{
		2080	if (expect_false (ev_is_active (w)))
		2081	return;
		2082
		2083	pri_adjust (EV_A_ (W)w);
		2084
		2085	{
		2086	int active = ++idlecnt [ABSPRI (w)];
		2087
		2088	++idleall;
		2089	ev_start (EV_A_ (W)w, active);
		2090
		2091	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2092	idles [ABSPRI (w)][active - 1] = w;
		2093	}
		2094	}
		2095
		2096	void
		2097	ev_idle_stop (EV_P_ ev_idle *w)
		2098	{
		2099	clear_pending (EV_A_ (W)w);
		2100	if (expect_false (!ev_is_active (w)))
		2101	return;
		2102
		2103	{
		2104	int active = ((W)w)->active;
		2105
		2106	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2107	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2108
		2109	ev_stop (EV_A_ (W)w);
		2110	--idleall;
		2111	}
		2112	}
		2113	#endif
		2114
		2115	void
		2116	ev_prepare_start (EV_P_ ev_prepare *w)
		2117	{
		2118	if (expect_false (ev_is_active (w)))
		2119	return;
		2120
		2121	ev_start (EV_A_ (W)w, ++preparecnt);
		2122	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2123	prepares [preparecnt - 1] = w;
		2124	}
		2125
		2126	void
		2127	ev_prepare_stop (EV_P_ ev_prepare *w)
		2128	{
		2129	clear_pending (EV_A_ (W)w);
		2130	if (expect_false (!ev_is_active (w)))
		2131	return;
		2132
		2133	{
		2134	int active = ((W)w)->active;
		2135	prepares [active - 1] = prepares [--preparecnt];
		2136	((W)prepares [active - 1])->active = active;
		2137	}
		2138
		2139	ev_stop (EV_A_ (W)w);
		2140	}
		2141
		2142	void
		2143	ev_check_start (EV_P_ ev_check *w)
		2144	{
		2145	if (expect_false (ev_is_active (w)))
		2146	return;
		2147
		2148	ev_start (EV_A_ (W)w, ++checkcnt);
		2149	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2150	checks [checkcnt - 1] = w;
		2151	}
		2152
		2153	void
		2154	ev_check_stop (EV_P_ ev_check *w)
		2155	{
		2156	clear_pending (EV_A_ (W)w);
		2157	if (expect_false (!ev_is_active (w)))
		2158	return;
		2159
		2160	{
		2161	int active = ((W)w)->active;
		2162	checks [active - 1] = checks [--checkcnt];
		2163	((W)checks [active - 1])->active = active;
		2164	}
		2165
1708	ev_stop (EV_A_ (W)w);	2166	ev_stop (EV_A_ (W)w);
1709	}	2167	}
1710		2168
1711	#if EV_EMBED_ENABLE	2169	#if EV_EMBED_ENABLE
1712	void noinline	2170	void noinline
…		…
1745	}	2203	}
1746		2204
1747	void	2205	void
1748	ev_embed_stop (EV_P_ ev_embed *w)	2206	ev_embed_stop (EV_P_ ev_embed *w)
1749	{	2207	{
1750	ev_clear_pending (EV_A_ (W)w);	2208	clear_pending (EV_A_ (W)w);
1751	if (expect_false (!ev_is_active (w)))	2209	if (expect_false (!ev_is_active (w)))
1752	return;	2210	return;
1753		2211
1754	ev_io_stop (EV_A_ &w->io);	2212	ev_io_stop (EV_A_ &w->io);
1755		2213
1756	ev_stop (EV_A_ (W)w);	2214	ev_stop (EV_A_ (W)w);
1757	}	2215	}
1758	#endif	2216	#endif
1759		2217
1760	#if EV_STAT_ENABLE	2218	#if EV_FORK_ENABLE
1761
1762	# ifdef _WIN32
1763	# define lstat(a,b) stat(a,b)
1764	# endif
1765
1766	void	2219	void
1767	ev_stat_stat (EV_P_ ev_stat *w)
1768	{
1769	if (lstat (w->path, &w->attr) < 0)
1770	w->attr.st_nlink = 0;
1771	else if (!w->attr.st_nlink)
1772	w->attr.st_nlink = 1;
1773	}
1774
1775	static void
1776	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1777	{
1778	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1779
1780	/* we copy this here each the time so that */
1781	/* prev has the old value when the callback gets invoked */
1782	w->prev = w->attr;
1783	ev_stat_stat (EV_A_ w);
1784
1785	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1786	ev_feed_event (EV_A_ w, EV_STAT);
1787	}
1788
1789	void
1790	ev_stat_start (EV_P_ ev_stat *w)	2220	ev_fork_start (EV_P_ ev_fork *w)
1791	{	2221	{
1792	if (expect_false (ev_is_active (w)))	2222	if (expect_false (ev_is_active (w)))
1793	return;	2223	return;
1794		2224
1795	/* since we use memcmp, we need to clear any padding data etc. */
1796	memset (&w->prev, 0, sizeof (ev_statdata));
1797	memset (&w->attr, 0, sizeof (ev_statdata));
1798
1799	ev_stat_stat (EV_A_ w);
1800
1801	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1802	ev_set_priority (&w->timer, ev_priority (w));
1803	ev_timer_start (EV_A_ &w->timer);
1804
1805	ev_start (EV_A_ (W)w, 1);	2225	ev_start (EV_A_ (W)w, ++forkcnt);
		2226	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2227	forks [forkcnt - 1] = w;
1806	}	2228	}
1807		2229
1808	void	2230	void
1809	ev_stat_stop (EV_P_ ev_stat *w)	2231	ev_fork_stop (EV_P_ ev_fork *w)
1810	{	2232	{
1811	ev_clear_pending (EV_A_ (W)w);	2233	clear_pending (EV_A_ (W)w);
1812	if (expect_false (!ev_is_active (w)))	2234	if (expect_false (!ev_is_active (w)))
1813	return;	2235	return;
1814		2236
1815	ev_timer_stop (EV_A_ &w->timer);	2237	{
		2238	int active = ((W)w)->active;
		2239	forks [active - 1] = forks [--forkcnt];
		2240	((W)forks [active - 1])->active = active;
		2241	}
1816		2242
1817	ev_stop (EV_A_ (W)w);	2243	ev_stop (EV_A_ (W)w);
1818	}	2244	}
1819	#endif	2245	#endif
1820		2246

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines