[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.161 by root, Sat Dec 1 23:43:45 2007 UTC vs.
Revision 1.194 by root, Sat Dec 22 07:03:31 2007 UTC

…		…
51	# ifndef EV_USE_MONOTONIC	51	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	52	# define EV_USE_MONOTONIC 0
53	# endif	53	# endif
54	# ifndef EV_USE_REALTIME	54	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	55	# define EV_USE_REALTIME 0
		56	# endif
		57	# endif
		58
		59	# ifndef EV_USE_NANOSLEEP
		60	# if HAVE_NANOSLEEP
		61	# define EV_USE_NANOSLEEP 1
		62	# else
		63	# define EV_USE_NANOSLEEP 0
56	# endif	64	# endif
57	# endif	65	# endif
58		66
59	# ifndef EV_USE_SELECT	67	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	68	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
146		154
147	#ifndef EV_USE_REALTIME	155	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	156	# define EV_USE_REALTIME 0
149	#endif	157	#endif
150		158
		159	#ifndef EV_USE_NANOSLEEP
		160	# define EV_USE_NANOSLEEP 0
		161	#endif
		162
151	#ifndef EV_USE_SELECT	163	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	164	# define EV_USE_SELECT 1
153	#endif	165	#endif
154		166
155	#ifndef EV_USE_POLL	167	#ifndef EV_USE_POLL
…		…
202	#ifndef CLOCK_REALTIME	214	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	215	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	216	# define EV_USE_REALTIME 0
205	#endif	217	#endif
206		218
		219	#if !EV_STAT_ENABLE
		220	# undef EV_USE_INOTIFY
		221	# define EV_USE_INOTIFY 0
		222	#endif
		223
		224	#if !EV_USE_NANOSLEEP
		225	# ifndef _WIN32
		226	# include <sys/select.h>
		227	# endif
		228	#endif
		229
		230	#if EV_USE_INOTIFY
		231	# include <sys/inotify.h>
		232	#endif
		233
207	#if EV_SELECT_IS_WINSOCKET	234	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	235	# include <winsock.h>
209	#endif	236	#endif
210		237
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
219	/**/	238	/**/
		239
		240	/*
		241	* This is used to avoid floating point rounding problems.
		242	* It is added to ev_rt_now when scheduling periodics
		243	* to ensure progress, time-wise, even when rounding
		244	* errors are against us.
		245	* This value is good at least till the year 4000.
		246	* Better solutions welcome.
		247	*/
		248	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		249
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	250	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	251	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */	252	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
224		253
225	#if __GNUC__ >= 3	254	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	255	# define expect(expr,value) __builtin_expect ((expr),(value))
227	# define inline_size static inline /* inline for codesize */
228	# if EV_MINIMAL
229	# define noinline __attribute__ ((noinline))	256	# define noinline __attribute__ ((noinline))
230	# define inline_speed static noinline
231	# else
232	# define noinline
233	# define inline_speed static inline
234	# endif
235	#else	257	#else
236	# define expect(expr,value) (expr)	258	# define expect(expr,value) (expr)
237	# define inline_speed static
238	# define inline_size static
239	# define noinline	259	# define noinline
		260	# if __STDC_VERSION__ < 199901L
		261	# define inline
		262	# endif
240	#endif	263	#endif
241		264
242	#define expect_false(expr) expect ((expr) != 0, 0)	265	#define expect_false(expr) expect ((expr) != 0, 0)
243	#define expect_true(expr) expect ((expr) != 0, 1)	266	#define expect_true(expr) expect ((expr) != 0, 1)
		267	#define inline_size static inline
		268
		269	#if EV_MINIMAL
		270	# define inline_speed static noinline
		271	#else
		272	# define inline_speed static inline
		273	#endif
244		274
245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	275	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	276	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247		277
248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	278	#define EMPTY /* required for microsofts broken pseudo-c compiler */
249	#define EMPTY2(a,b) /* used to suppress some warnings */	279	#define EMPTY2(a,b) /* used to suppress some warnings */
250		280
251	typedef ev_watcher *W;	281	typedef ev_watcher *W;
252	typedef ev_watcher_list *WL;	282	typedef ev_watcher_list *WL;
253	typedef ev_watcher_time *WT;	283	typedef ev_watcher_time *WT;
254		284
		285	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		286	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	287	static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
256		288
257	#ifdef _WIN32	289	#ifdef _WIN32
258	# include "ev_win32.c"	290	# include "ev_win32.c"
259	#endif	291	#endif
260		292
…		…
396	{	428	{
397	return ev_rt_now;	429	return ev_rt_now;
398	}	430	}
399	#endif	431	#endif
400		432
401	#define array_roundsize(type,n) (((n) \| 4) & ~3)	433	void
		434	ev_sleep (ev_tstamp delay)
		435	{
		436	if (delay > 0.)
		437	{
		438	#if EV_USE_NANOSLEEP
		439	struct timespec ts;
		440
		441	ts.tv_sec = (time_t)delay;
		442	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		443
		444	nanosleep (&ts, 0);
		445	#elif defined(_WIN32)
		446	Sleep (delay * 1e3);
		447	#else
		448	struct timeval tv;
		449
		450	tv.tv_sec = (time_t)delay;
		451	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		452
		453	select (0, 0, 0, 0, &tv);
		454	#endif
		455	}
		456	}
		457
		458	/*****************************************************************************/
		459
		460	int inline_size
		461	array_nextsize (int elem, int cur, int cnt)
		462	{
		463	int ncur = cur + 1;
		464
		465	do
		466	ncur <<= 1;
		467	while (cnt > ncur);
		468
		469	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		470	if (elem * ncur > 4096)
		471	{
		472	ncur *= elem;
		473	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;
		474	ncur = ncur - sizeof (void ) 4;
		475	ncur /= elem;
		476	}
		477
		478	return ncur;
		479	}
		480
		481	static noinline void *
		482	array_realloc (int elem, void base, int cur, int cnt)
		483	{
		484	cur = array_nextsize (elem, cur, cnt);
		485	return ev_realloc (base, elem * *cur);
		486	}
402		487
403	#define array_needsize(type,base,cur,cnt,init) \	488	#define array_needsize(type,base,cur,cnt,init) \
404	if (expect_false ((cnt) > cur)) \	489	if (expect_false ((cnt) > (cur))) \
405	{ \	490	{ \
406	int newcnt = cur; \	491	int ocur_ = (cur); \
407	do \	492	(base) = (type *)array_realloc \
408	{ \	493	(sizeof (type), (base), &(cur), (cnt)); \
409	newcnt = array_roundsize (type, newcnt << 1); \	494	init ((base) + (ocur_), (cur) - ocur_); \
410	} \
411	while ((cnt) > newcnt); \
412	\
413	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
414	init (base + cur, newcnt - cur); \
415	cur = newcnt; \
416	}	495	}
417		496
		497	#if 0
418	#define array_slim(type,stem) \	498	#define array_slim(type,stem) \
419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	499	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420	{ \	500	{ \
421	stem ## max = array_roundsize (stem ## cnt >> 1); \	501	stem ## max = array_roundsize (stem ## cnt >> 1); \
422	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	502	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	503	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
424	}	504	}
		505	#endif
425		506
426	#define array_free(stem, idx) \	507	#define array_free(stem, idx) \
427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	508	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428		509
429	/*****************************************************************************/	510	/*****************************************************************************/
430		511
431	void noinline	512	void noinline
432	ev_feed_event (EV_P_ void *w, int revents)	513	ev_feed_event (EV_P_ void *w, int revents)
433	{	514	{
434	W w_ = (W)w;	515	W w_ = (W)w;
		516	int pri = ABSPRI (w_);
435		517
436	if (expect_false (w_->pending))	518	if (expect_false (w_->pending))
		519	pendings [pri][w_->pending - 1].events \|= revents;
		520	else
437	{	521	{
		522	w_->pending = ++pendingcnt [pri];
		523	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		524	pendings [pri][w_->pending - 1].w = w_;
438	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	525	pendings [pri][w_->pending - 1].events = revents;
439	return;
440	}	526	}
441
442	w_->pending = ++pendingcnt [ABSPRI (w_)];
443	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
444	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
445	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
446	}	527	}
447		528
448	void inline_size	529	void inline_speed
449	queue_events (EV_P_ W *events, int eventcnt, int type)	530	queue_events (EV_P_ W *events, int eventcnt, int type)
450	{	531	{
451	int i;	532	int i;
452		533
453	for (i = 0; i < eventcnt; ++i)	534	for (i = 0; i < eventcnt; ++i)
…		…
485	}	566	}
486		567
487	void	568	void
488	ev_feed_fd_event (EV_P_ int fd, int revents)	569	ev_feed_fd_event (EV_P_ int fd, int revents)
489	{	570	{
		571	if (fd >= 0 && fd < anfdmax)
490	fd_event (EV_A_ fd, revents);	572	fd_event (EV_A_ fd, revents);
491	}	573	}
492		574
493	void inline_size	575	void inline_size
494	fd_reify (EV_P)	576	fd_reify (EV_P)
495	{	577	{
…		…
499	{	581	{
500	int fd = fdchanges [i];	582	int fd = fdchanges [i];
501	ANFD *anfd = anfds + fd;	583	ANFD *anfd = anfds + fd;
502	ev_io *w;	584	ev_io *w;
503		585
504	int events = 0;	586	unsigned char events = 0;
505		587
506	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	588	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
507	events \|= w->events;	589	events \|= (unsigned char)w->events;
508		590
509	#if EV_SELECT_IS_WINSOCKET	591	#if EV_SELECT_IS_WINSOCKET
510	if (events)	592	if (events)
511	{	593	{
512	unsigned long argp;	594	unsigned long argp;
513	anfd->handle = _get_osfhandle (fd);	595	anfd->handle = _get_osfhandle (fd);
514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	596	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515	}	597	}
516	#endif	598	#endif
517		599
		600	{
		601	unsigned char o_events = anfd->events;
		602	unsigned char o_reify = anfd->reify;
		603
518	anfd->reify = 0;	604	anfd->reify = 0;
519
520	backend_modify (EV_A_ fd, anfd->events, events);
521	anfd->events = events;	605	anfd->events = events;
		606
		607	if (o_events != events \|\| o_reify & EV_IOFDSET)
		608	backend_modify (EV_A_ fd, o_events, events);
		609	}
522	}	610	}
523		611
524	fdchangecnt = 0;	612	fdchangecnt = 0;
525	}	613	}
526		614
527	void inline_size	615	void inline_size
528	fd_change (EV_P_ int fd)	616	fd_change (EV_P_ int fd, int flags)
529	{	617	{
530	if (expect_false (anfds [fd].reify))	618	unsigned char reify = anfds [fd].reify;
531	return;
532
533	anfds [fd].reify = 1;	619	anfds [fd].reify \|= flags;
534		620
		621	if (expect_true (!reify))
		622	{
535	++fdchangecnt;	623	++fdchangecnt;
536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	624	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537	fdchanges [fdchangecnt - 1] = fd;	625	fdchanges [fdchangecnt - 1] = fd;
		626	}
538	}	627	}
539		628
540	void inline_speed	629	void inline_speed
541	fd_kill (EV_P_ int fd)	630	fd_kill (EV_P_ int fd)
542	{	631	{
…		…
593		682
594	for (fd = 0; fd < anfdmax; ++fd)	683	for (fd = 0; fd < anfdmax; ++fd)
595	if (anfds [fd].events)	684	if (anfds [fd].events)
596	{	685	{
597	anfds [fd].events = 0;	686	anfds [fd].events = 0;
598	fd_change (EV_A_ fd);	687	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
599	}	688	}
600	}	689	}
601		690
602	/*****************************************************************************/	691	/*****************************************************************************/
603		692
604	void inline_speed	693	void inline_speed
605	upheap (WT *heap, int k)	694	upheap (WT *heap, int k)
606	{	695	{
607	WT w = heap [k];	696	WT w = heap [k];
608		697
609	while (k && heap [k >> 1]->at > w->at)	698	while (k)
610	{	699	{
		700	int p = (k - 1) >> 1;
		701
		702	if (heap [p]->at <= w->at)
		703	break;
		704
611	heap [k] = heap [k >> 1];	705	heap [k] = heap [p];
612	((W)heap [k])->active = k + 1;	706	((W)heap [k])->active = k + 1;
613	k >>= 1;	707	k = p;
614	}	708	}
615		709
616	heap [k] = w;	710	heap [k] = w;
617	((W)heap [k])->active = k + 1;	711	((W)heap [k])->active = k + 1;
618
619	}	712	}
620		713
621	void inline_speed	714	void inline_speed
622	downheap (WT *heap, int N, int k)	715	downheap (WT *heap, int N, int k)
623	{	716	{
624	WT w = heap [k];	717	WT w = heap [k];
625		718
626	while (k < (N >> 1))	719	for (;;)
627	{	720	{
628	int j = k << 1;	721	int c = (k << 1) + 1;
629		722
630	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	723	if (c >= N)
631	++j;
632
633	if (w->at <= heap [j]->at)
634	break;	724	break;
635		725
		726	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		727	? 1 : 0;
		728
		729	if (w->at <= heap [c]->at)
		730	break;
		731
636	heap [k] = heap [j];	732	heap [k] = heap [c];
637	((W)heap [k])->active = k + 1;	733	((W)heap [k])->active = k + 1;
		734
638	k = j;	735	k = c;
639	}	736	}
640		737
641	heap [k] = w;	738	heap [k] = w;
642	((W)heap [k])->active = k + 1;	739	((W)heap [k])->active = k + 1;
643	}	740	}
…		…
725	for (signum = signalmax; signum--; )	822	for (signum = signalmax; signum--; )
726	if (signals [signum].gotsig)	823	if (signals [signum].gotsig)
727	ev_feed_signal_event (EV_A_ signum + 1);	824	ev_feed_signal_event (EV_A_ signum + 1);
728	}	825	}
729		826
730	void inline_size	827	void inline_speed
731	fd_intern (int fd)	828	fd_intern (int fd)
732	{	829	{
733	#ifdef _WIN32	830	#ifdef _WIN32
734	int arg = 1;	831	int arg = 1;
735	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	832	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
750	ev_unref (EV_A); /* child watcher should not keep loop alive */	847	ev_unref (EV_A); /* child watcher should not keep loop alive */
751	}	848	}
752		849
753	/*****************************************************************************/	850	/*****************************************************************************/
754		851
755	static ev_child *childs [EV_PID_HASHSIZE];	852	static WL childs [EV_PID_HASHSIZE];
756		853
757	#ifndef _WIN32	854	#ifndef _WIN32
758		855
759	static ev_signal childev;	856	static ev_signal childev;
760		857
…		…
764	ev_child *w;	861	ev_child *w;
765		862
766	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	863	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
767	if (w->pid == pid \|\| !w->pid)	864	if (w->pid == pid \|\| !w->pid)
768	{	865	{
769	ev_priority (w) = ev_priority (sw); /* need to do it now */	866	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
770	w->rpid = pid;	867	w->rpid = pid;
771	w->rstatus = status;	868	w->rstatus = status;
772	ev_feed_event (EV_A_ (W)w, EV_CHILD);	869	ev_feed_event (EV_A_ (W)w, EV_CHILD);
773	}	870	}
774	}	871	}
775		872
776	#ifndef WCONTINUED	873	#ifndef WCONTINUED
…		…
875	}	972	}
876		973
877	unsigned int	974	unsigned int
878	ev_embeddable_backends (void)	975	ev_embeddable_backends (void)
879	{	976	{
		977	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
880	return EVBACKEND_EPOLL	978	return EVBACKEND_KQUEUE
881	\| EVBACKEND_KQUEUE
882	\| EVBACKEND_PORT;	979	\| EVBACKEND_PORT;
883	}	980	}
884		981
885	unsigned int	982	unsigned int
886	ev_backend (EV_P)	983	ev_backend (EV_P)
887	{	984	{
888	return backend;	985	return backend;
		986	}
		987
		988	unsigned int
		989	ev_loop_count (EV_P)
		990	{
		991	return loop_count;
		992	}
		993
		994	void
		995	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		996	{
		997	io_blocktime = interval;
		998	}
		999
		1000	void
		1001	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1002	{
		1003	timeout_blocktime = interval;
889	}	1004	}
890		1005
891	static void noinline	1006	static void noinline
892	loop_init (EV_P_ unsigned int flags)	1007	loop_init (EV_P_ unsigned int flags)
893	{	1008	{
…		…
904	ev_rt_now = ev_time ();	1019	ev_rt_now = ev_time ();
905	mn_now = get_clock ();	1020	mn_now = get_clock ();
906	now_floor = mn_now;	1021	now_floor = mn_now;
907	rtmn_diff = ev_rt_now - mn_now;	1022	rtmn_diff = ev_rt_now - mn_now;
908		1023
		1024	io_blocktime = 0.;
		1025	timeout_blocktime = 0.;
		1026
909	/* pid check not overridable via env */	1027	/* pid check not overridable via env */
910	#ifndef _WIN32	1028	#ifndef _WIN32
911	if (flags & EVFLAG_FORKCHECK)	1029	if (flags & EVFLAG_FORKCHECK)
912	curpid = getpid ();	1030	curpid = getpid ();
913	#endif	1031	#endif
…		…
975	#if EV_USE_SELECT	1093	#if EV_USE_SELECT
976	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1094	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
977	#endif	1095	#endif
978		1096
979	for (i = NUMPRI; i--; )	1097	for (i = NUMPRI; i--; )
		1098	{
980	array_free (pending, [i]);	1099	array_free (pending, [i]);
		1100	#if EV_IDLE_ENABLE
		1101	array_free (idle, [i]);
		1102	#endif
		1103	}
		1104
		1105	ev_free (anfds); anfdmax = 0;
981		1106
982	/* have to use the microsoft-never-gets-it-right macro */	1107	/* have to use the microsoft-never-gets-it-right macro */
983	array_free (fdchange, EMPTY0);	1108	array_free (fdchange, EMPTY);
984	array_free (timer, EMPTY0);	1109	array_free (timer, EMPTY);
985	#if EV_PERIODIC_ENABLE	1110	#if EV_PERIODIC_ENABLE
986	array_free (periodic, EMPTY0);	1111	array_free (periodic, EMPTY);
987	#endif	1112	#endif
		1113	#if EV_FORK_ENABLE
988	array_free (idle, EMPTY0);	1114	array_free (fork, EMPTY);
		1115	#endif
989	array_free (prepare, EMPTY0);	1116	array_free (prepare, EMPTY);
990	array_free (check, EMPTY0);	1117	array_free (check, EMPTY);
991		1118
992	backend = 0;	1119	backend = 0;
993	}	1120	}
994		1121
995	void inline_size infy_fork (EV_P);	1122	void inline_size infy_fork (EV_P);
…		…
1131	postfork = 1;	1258	postfork = 1;
1132	}	1259	}
1133		1260
1134	/*****************************************************************************/	1261	/*****************************************************************************/
1135		1262
1136	int inline_size	1263	void
1137	any_pending (EV_P)	1264	ev_invoke (EV_P_ void *w, int revents)
1138	{	1265	{
1139	int pri;	1266	EV_CB_INVOKE ((W)w, revents);
1140
1141	for (pri = NUMPRI; pri--; )
1142	if (pendingcnt [pri])
1143	return 1;
1144
1145	return 0;
1146	}	1267	}
1147		1268
1148	void inline_speed	1269	void inline_speed
1149	call_pending (EV_P)	1270	call_pending (EV_P)
1150	{	1271	{
…		…
1168	void inline_size	1289	void inline_size
1169	timers_reify (EV_P)	1290	timers_reify (EV_P)
1170	{	1291	{
1171	while (timercnt && ((WT)timers [0])->at <= mn_now)	1292	while (timercnt && ((WT)timers [0])->at <= mn_now)
1172	{	1293	{
1173	ev_timer *w = timers [0];	1294	ev_timer w = (ev_timer )timers [0];
1174		1295
1175	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1296	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1176		1297
1177	/* first reschedule or stop timer */	1298	/* first reschedule or stop timer */
1178	if (w->repeat)	1299	if (w->repeat)
…		…
1181		1302
1182	((WT)w)->at += w->repeat;	1303	((WT)w)->at += w->repeat;
1183	if (((WT)w)->at < mn_now)	1304	if (((WT)w)->at < mn_now)
1184	((WT)w)->at = mn_now;	1305	((WT)w)->at = mn_now;
1185		1306
1186	downheap ((WT *)timers, timercnt, 0);	1307	downheap (timers, timercnt, 0);
1187	}	1308	}
1188	else	1309	else
1189	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1310	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1190		1311
1191	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1312	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1196	void inline_size	1317	void inline_size
1197	periodics_reify (EV_P)	1318	periodics_reify (EV_P)
1198	{	1319	{
1199	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1320	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1200	{	1321	{
1201	ev_periodic *w = periodics [0];	1322	ev_periodic w = (ev_periodic )periodics [0];
1202		1323
1203	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1324	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1204		1325
1205	/* first reschedule or stop timer */	1326	/* first reschedule or stop timer */
1206	if (w->reschedule_cb)	1327	if (w->reschedule_cb)
1207	{	1328	{
1208	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1329	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1209	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1330	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1210	downheap ((WT *)periodics, periodiccnt, 0);	1331	downheap (periodics, periodiccnt, 0);
1211	}	1332	}
1212	else if (w->interval)	1333	else if (w->interval)
1213	{	1334	{
1214	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1335	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1336	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1215	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1337	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1216	downheap ((WT *)periodics, periodiccnt, 0);	1338	downheap (periodics, periodiccnt, 0);
1217	}	1339	}
1218	else	1340	else
1219	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1341	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1220		1342
1221	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1343	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1228	int i;	1350	int i;
1229		1351
1230	/* adjust periodics after time jump */	1352	/* adjust periodics after time jump */
1231	for (i = 0; i < periodiccnt; ++i)	1353	for (i = 0; i < periodiccnt; ++i)
1232	{	1354	{
1233	ev_periodic *w = periodics [i];	1355	ev_periodic w = (ev_periodic )periodics [i];
1234		1356
1235	if (w->reschedule_cb)	1357	if (w->reschedule_cb)
1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1358	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1237	else if (w->interval)	1359	else if (w->interval)
1238	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1360	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1239	}	1361	}
1240		1362
1241	/* now rebuild the heap */	1363	/* now rebuild the heap */
1242	for (i = periodiccnt >> 1; i--; )	1364	for (i = periodiccnt >> 1; i--; )
1243	downheap ((WT *)periodics, periodiccnt, i);	1365	downheap (periodics, periodiccnt, i);
1244	}	1366	}
1245	#endif	1367	#endif
1246		1368
		1369	#if EV_IDLE_ENABLE
1247	int inline_size	1370	void inline_size
1248	time_update_monotonic (EV_P)	1371	idle_reify (EV_P)
1249	{	1372	{
		1373	if (expect_false (idleall))
		1374	{
		1375	int pri;
		1376
		1377	for (pri = NUMPRI; pri--; )
		1378	{
		1379	if (pendingcnt [pri])
		1380	break;
		1381
		1382	if (idlecnt [pri])
		1383	{
		1384	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1385	break;
		1386	}
		1387	}
		1388	}
		1389	}
		1390	#endif
		1391
		1392	void inline_speed
		1393	time_update (EV_P_ ev_tstamp max_block)
		1394	{
		1395	int i;
		1396
		1397	#if EV_USE_MONOTONIC
		1398	if (expect_true (have_monotonic))
		1399	{
		1400	ev_tstamp odiff = rtmn_diff;
		1401
1250	mn_now = get_clock ();	1402	mn_now = get_clock ();
1251		1403
		1404	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1405	/* interpolate in the meantime */
1252	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1406	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1253	{	1407	{
1254	ev_rt_now = rtmn_diff + mn_now;	1408	ev_rt_now = rtmn_diff + mn_now;
1255	return 0;	1409	return;
1256	}	1410	}
1257	else	1411
1258	{
1259	now_floor = mn_now;	1412	now_floor = mn_now;
1260	ev_rt_now = ev_time ();	1413	ev_rt_now = ev_time ();
1261	return 1;
1262	}
1263	}
1264		1414
1265	void inline_size	1415	/* loop a few times, before making important decisions.
1266	time_update (EV_P)	1416	* on the choice of "4": one iteration isn't enough,
1267	{	1417	* in case we get preempted during the calls to
1268	int i;	1418	* ev_time and get_clock. a second call is almost guaranteed
1269		1419	* to succeed in that case, though. and looping a few more times
1270	#if EV_USE_MONOTONIC	1420	* doesn't hurt either as we only do this on time-jumps or
1271	if (expect_true (have_monotonic))	1421	* in the unlikely event of having been preempted here.
1272	{	1422	*/
1273	if (time_update_monotonic (EV_A))	1423	for (i = 4; --i; )
1274	{	1424	{
1275	ev_tstamp odiff = rtmn_diff;
1276
1277	/* loop a few times, before making important decisions.
1278	* on the choice of "4": one iteration isn't enough,
1279	* in case we get preempted during the calls to
1280	* ev_time and get_clock. a second call is almost guaranteed
1281	* to succeed in that case, though. and looping a few more times
1282	* doesn't hurt either as we only do this on time-jumps or
1283	* in the unlikely event of having been preempted here.
1284	*/
1285	for (i = 4; --i; )
1286	{
1287	rtmn_diff = ev_rt_now - mn_now;	1425	rtmn_diff = ev_rt_now - mn_now;
1288		1426
1289	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1427	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1290	return; /* all is well */	1428	return; /* all is well */
1291		1429
1292	ev_rt_now = ev_time ();	1430	ev_rt_now = ev_time ();
1293	mn_now = get_clock ();	1431	mn_now = get_clock ();
1294	now_floor = mn_now;	1432	now_floor = mn_now;
1295	}	1433	}
1296		1434
1297	# if EV_PERIODIC_ENABLE	1435	# if EV_PERIODIC_ENABLE
1298	periodics_reschedule (EV_A);	1436	periodics_reschedule (EV_A);
1299	# endif	1437	# endif
1300	/* no timer adjustment, as the monotonic clock doesn't jump */	1438	/* no timer adjustment, as the monotonic clock doesn't jump */
1301	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1439	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1302	}
1303	}	1440	}
1304	else	1441	else
1305	#endif	1442	#endif
1306	{	1443	{
1307	ev_rt_now = ev_time ();	1444	ev_rt_now = ev_time ();
1308		1445
1309	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1446	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1310	{	1447	{
1311	#if EV_PERIODIC_ENABLE	1448	#if EV_PERIODIC_ENABLE
1312	periodics_reschedule (EV_A);	1449	periodics_reschedule (EV_A);
1313	#endif	1450	#endif
1314
1315	/* adjust timers. this is easy, as the offset is the same for all of them */	1451	/* adjust timers. this is easy, as the offset is the same for all of them */
1316	for (i = 0; i < timercnt; ++i)	1452	for (i = 0; i < timercnt; ++i)
1317	((WT)timers [i])->at += ev_rt_now - mn_now;	1453	((WT)timers [i])->at += ev_rt_now - mn_now;
1318	}	1454	}
1319		1455
…		…
1363	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1499	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1364	call_pending (EV_A);	1500	call_pending (EV_A);
1365	}	1501	}
1366	#endif	1502	#endif
1367		1503
1368	/* queue check watchers (and execute them) */	1504	/* queue prepare watchers (and execute them) */
1369	if (expect_false (preparecnt))	1505	if (expect_false (preparecnt))
1370	{	1506	{
1371	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1507	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1372	call_pending (EV_A);	1508	call_pending (EV_A);
1373	}	1509	}
…		…
1382	/* update fd-related kernel structures */	1518	/* update fd-related kernel structures */
1383	fd_reify (EV_A);	1519	fd_reify (EV_A);
1384		1520
1385	/* calculate blocking time */	1521	/* calculate blocking time */
1386	{	1522	{
1387	ev_tstamp block;	1523	ev_tstamp waittime = 0.;
		1524	ev_tstamp sleeptime = 0.;
1388		1525
1389	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idlecnt \|\| !activecnt))	1526	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1390	block = 0.; /* do not block at all */
1391	else
1392	{	1527	{
1393	/* update time to cancel out callback processing overhead */	1528	/* update time to cancel out callback processing overhead */
1394	#if EV_USE_MONOTONIC
1395	if (expect_true (have_monotonic))
1396	time_update_monotonic (EV_A);	1529	time_update (EV_A_ 1e100);
1397	else
1398	#endif
1399	{
1400	ev_rt_now = ev_time ();
1401	mn_now = ev_rt_now;
1402	}
1403		1530
1404	block = MAX_BLOCKTIME;	1531	waittime = MAX_BLOCKTIME;
1405		1532
1406	if (timercnt)	1533	if (timercnt)
1407	{	1534	{
1408	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1535	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1409	if (block > to) block = to;	1536	if (waittime > to) waittime = to;
1410	}	1537	}
1411		1538
1412	#if EV_PERIODIC_ENABLE	1539	#if EV_PERIODIC_ENABLE
1413	if (periodiccnt)	1540	if (periodiccnt)
1414	{	1541	{
1415	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1542	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1416	if (block > to) block = to;	1543	if (waittime > to) waittime = to;
1417	}	1544	}
1418	#endif	1545	#endif
1419		1546
1420	if (expect_false (block < 0.)) block = 0.;	1547	if (expect_false (waittime < timeout_blocktime))
		1548	waittime = timeout_blocktime;
		1549
		1550	sleeptime = waittime - backend_fudge;
		1551
		1552	if (expect_true (sleeptime > io_blocktime))
		1553	sleeptime = io_blocktime;
		1554
		1555	if (sleeptime)
		1556	{
		1557	ev_sleep (sleeptime);
		1558	waittime -= sleeptime;
		1559	}
1421	}	1560	}
1422		1561
		1562	++loop_count;
1423	backend_poll (EV_A_ block);	1563	backend_poll (EV_A_ waittime);
		1564
		1565	/* update ev_rt_now, do magic */
		1566	time_update (EV_A_ waittime + sleeptime);
1424	}	1567	}
1425
1426	/* update ev_rt_now, do magic */
1427	time_update (EV_A);
1428		1568
1429	/* queue pending timers and reschedule them */	1569	/* queue pending timers and reschedule them */
1430	timers_reify (EV_A); /* relative timers called last */	1570	timers_reify (EV_A); /* relative timers called last */
1431	#if EV_PERIODIC_ENABLE	1571	#if EV_PERIODIC_ENABLE
1432	periodics_reify (EV_A); /* absolute timers called first */	1572	periodics_reify (EV_A); /* absolute timers called first */
1433	#endif	1573	#endif
1434		1574
		1575	#if EV_IDLE_ENABLE
1435	/* queue idle watchers unless other events are pending */	1576	/* queue idle watchers unless other events are pending */
1436	if (idlecnt && !any_pending (EV_A))	1577	idle_reify (EV_A);
1437	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1578	#endif
1438		1579
1439	/* queue check watchers, to be executed first */	1580	/* queue check watchers, to be executed first */
1440	if (expect_false (checkcnt))	1581	if (expect_false (checkcnt))
1441	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1582	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1442		1583
…		…
1478	head = &(*head)->next;	1619	head = &(*head)->next;
1479	}	1620	}
1480	}	1621	}
1481		1622
1482	void inline_speed	1623	void inline_speed
1483	ev_clear_pending (EV_P_ W w)	1624	clear_pending (EV_P_ W w)
1484	{	1625	{
1485	if (w->pending)	1626	if (w->pending)
1486	{	1627	{
1487	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1628	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1488	w->pending = 0;	1629	w->pending = 0;
1489	}	1630	}
1490	}	1631	}
1491		1632
		1633	int
		1634	ev_clear_pending (EV_P_ void *w)
		1635	{
		1636	W w_ = (W)w;
		1637	int pending = w_->pending;
		1638
		1639	if (expect_true (pending))
		1640	{
		1641	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1642	w_->pending = 0;
		1643	p->w = 0;
		1644	return p->events;
		1645	}
		1646	else
		1647	return 0;
		1648	}
		1649
		1650	void inline_size
		1651	pri_adjust (EV_P_ W w)
		1652	{
		1653	int pri = w->priority;
		1654	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1655	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1656	w->priority = pri;
		1657	}
		1658
1492	void inline_speed	1659	void inline_speed
1493	ev_start (EV_P_ W w, int active)	1660	ev_start (EV_P_ W w, int active)
1494	{	1661	{
1495	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1662	pri_adjust (EV_A_ w);
1496	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1497
1498	w->active = active;	1663	w->active = active;
1499	ev_ref (EV_A);	1664	ev_ref (EV_A);
1500	}	1665	}
1501		1666
1502	void inline_size	1667	void inline_size
…		…
1506	w->active = 0;	1671	w->active = 0;
1507	}	1672	}
1508		1673
1509	/*****************************************************************************/	1674	/*****************************************************************************/
1510		1675
1511	void	1676	void noinline
1512	ev_io_start (EV_P_ ev_io *w)	1677	ev_io_start (EV_P_ ev_io *w)
1513	{	1678	{
1514	int fd = w->fd;	1679	int fd = w->fd;
1515		1680
1516	if (expect_false (ev_is_active (w)))	1681	if (expect_false (ev_is_active (w)))
…		…
1518		1683
1519	assert (("ev_io_start called with negative fd", fd >= 0));	1684	assert (("ev_io_start called with negative fd", fd >= 0));
1520		1685
1521	ev_start (EV_A_ (W)w, 1);	1686	ev_start (EV_A_ (W)w, 1);
1522	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1687	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1523	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1688	wlist_add (&anfds[fd].head, (WL)w);
1524		1689
1525	fd_change (EV_A_ fd);	1690	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1691	w->events &= ~EV_IOFDSET;
1526	}	1692	}
1527		1693
1528	void	1694	void noinline
1529	ev_io_stop (EV_P_ ev_io *w)	1695	ev_io_stop (EV_P_ ev_io *w)
1530	{	1696	{
1531	ev_clear_pending (EV_A_ (W)w);	1697	clear_pending (EV_A_ (W)w);
1532	if (expect_false (!ev_is_active (w)))	1698	if (expect_false (!ev_is_active (w)))
1533	return;	1699	return;
1534		1700
1535	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1701	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1536		1702
1537	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1703	wlist_del (&anfds[w->fd].head, (WL)w);
1538	ev_stop (EV_A_ (W)w);	1704	ev_stop (EV_A_ (W)w);
1539		1705
1540	fd_change (EV_A_ w->fd);	1706	fd_change (EV_A_ w->fd, 1);
1541	}	1707	}
1542		1708
1543	void	1709	void noinline
1544	ev_timer_start (EV_P_ ev_timer *w)	1710	ev_timer_start (EV_P_ ev_timer *w)
1545	{	1711	{
1546	if (expect_false (ev_is_active (w)))	1712	if (expect_false (ev_is_active (w)))
1547	return;	1713	return;
1548		1714
1549	((WT)w)->at += mn_now;	1715	((WT)w)->at += mn_now;
1550		1716
1551	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1717	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1552		1718
1553	ev_start (EV_A_ (W)w, ++timercnt);	1719	ev_start (EV_A_ (W)w, ++timercnt);
1554	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1720	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1555	timers [timercnt - 1] = w;	1721	timers [timercnt - 1] = (WT)w;
1556	upheap ((WT *)timers, timercnt - 1);	1722	upheap (timers, timercnt - 1);
1557		1723
1558	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1724	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1559	}	1725	}
1560		1726
1561	void	1727	void noinline
1562	ev_timer_stop (EV_P_ ev_timer *w)	1728	ev_timer_stop (EV_P_ ev_timer *w)
1563	{	1729	{
1564	ev_clear_pending (EV_A_ (W)w);	1730	clear_pending (EV_A_ (W)w);
1565	if (expect_false (!ev_is_active (w)))	1731	if (expect_false (!ev_is_active (w)))
1566	return;	1732	return;
1567		1733
1568	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1734	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1569		1735
1570	{	1736	{
1571	int active = ((W)w)->active;	1737	int active = ((W)w)->active;
1572		1738
1573	if (expect_true (--active < --timercnt))	1739	if (expect_true (--active < --timercnt))
1574	{	1740	{
1575	timers [active] = timers [timercnt];	1741	timers [active] = timers [timercnt];
1576	adjustheap ((WT *)timers, timercnt, active);	1742	adjustheap (timers, timercnt, active);
1577	}	1743	}
1578	}	1744	}
1579		1745
1580	((WT)w)->at -= mn_now;	1746	((WT)w)->at -= mn_now;
1581		1747
1582	ev_stop (EV_A_ (W)w);	1748	ev_stop (EV_A_ (W)w);
1583	}	1749	}
1584		1750
1585	void	1751	void noinline
1586	ev_timer_again (EV_P_ ev_timer *w)	1752	ev_timer_again (EV_P_ ev_timer *w)
1587	{	1753	{
1588	if (ev_is_active (w))	1754	if (ev_is_active (w))
1589	{	1755	{
1590	if (w->repeat)	1756	if (w->repeat)
1591	{	1757	{
1592	((WT)w)->at = mn_now + w->repeat;	1758	((WT)w)->at = mn_now + w->repeat;
1593	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1759	adjustheap (timers, timercnt, ((W)w)->active - 1);
1594	}	1760	}
1595	else	1761	else
1596	ev_timer_stop (EV_A_ w);	1762	ev_timer_stop (EV_A_ w);
1597	}	1763	}
1598	else if (w->repeat)	1764	else if (w->repeat)
…		…
1601	ev_timer_start (EV_A_ w);	1767	ev_timer_start (EV_A_ w);
1602	}	1768	}
1603	}	1769	}
1604		1770
1605	#if EV_PERIODIC_ENABLE	1771	#if EV_PERIODIC_ENABLE
1606	void	1772	void noinline
1607	ev_periodic_start (EV_P_ ev_periodic *w)	1773	ev_periodic_start (EV_P_ ev_periodic *w)
1608	{	1774	{
1609	if (expect_false (ev_is_active (w)))	1775	if (expect_false (ev_is_active (w)))
1610	return;	1776	return;
1611		1777
…		…
1613	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1779	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1614	else if (w->interval)	1780	else if (w->interval)
1615	{	1781	{
1616	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1782	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1617	/* this formula differs from the one in periodic_reify because we do not always round up */	1783	/* this formula differs from the one in periodic_reify because we do not always round up */
1618	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1784	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1619	}	1785	}
		1786	else
		1787	((WT)w)->at = w->offset;
1620		1788
1621	ev_start (EV_A_ (W)w, ++periodiccnt);	1789	ev_start (EV_A_ (W)w, ++periodiccnt);
1622	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1790	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1623	periodics [periodiccnt - 1] = w;	1791	periodics [periodiccnt - 1] = (WT)w;
1624	upheap ((WT *)periodics, periodiccnt - 1);	1792	upheap (periodics, periodiccnt - 1);
1625		1793
1626	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1794	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1627	}	1795	}
1628		1796
1629	void	1797	void noinline
1630	ev_periodic_stop (EV_P_ ev_periodic *w)	1798	ev_periodic_stop (EV_P_ ev_periodic *w)
1631	{	1799	{
1632	ev_clear_pending (EV_A_ (W)w);	1800	clear_pending (EV_A_ (W)w);
1633	if (expect_false (!ev_is_active (w)))	1801	if (expect_false (!ev_is_active (w)))
1634	return;	1802	return;
1635		1803
1636	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1804	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1637		1805
1638	{	1806	{
1639	int active = ((W)w)->active;	1807	int active = ((W)w)->active;
1640		1808
1641	if (expect_true (--active < --periodiccnt))	1809	if (expect_true (--active < --periodiccnt))
1642	{	1810	{
1643	periodics [active] = periodics [periodiccnt];	1811	periodics [active] = periodics [periodiccnt];
1644	adjustheap ((WT *)periodics, periodiccnt, active);	1812	adjustheap (periodics, periodiccnt, active);
1645	}	1813	}
1646	}	1814	}
1647		1815
1648	ev_stop (EV_A_ (W)w);	1816	ev_stop (EV_A_ (W)w);
1649	}	1817	}
1650		1818
1651	void	1819	void noinline
1652	ev_periodic_again (EV_P_ ev_periodic *w)	1820	ev_periodic_again (EV_P_ ev_periodic *w)
1653	{	1821	{
1654	/* TODO: use adjustheap and recalculation */	1822	/* TODO: use adjustheap and recalculation */
1655	ev_periodic_stop (EV_A_ w);	1823	ev_periodic_stop (EV_A_ w);
1656	ev_periodic_start (EV_A_ w);	1824	ev_periodic_start (EV_A_ w);
…		…
1659		1827
1660	#ifndef SA_RESTART	1828	#ifndef SA_RESTART
1661	# define SA_RESTART 0	1829	# define SA_RESTART 0
1662	#endif	1830	#endif
1663		1831
1664	void	1832	void noinline
1665	ev_signal_start (EV_P_ ev_signal *w)	1833	ev_signal_start (EV_P_ ev_signal *w)
1666	{	1834	{
1667	#if EV_MULTIPLICITY	1835	#if EV_MULTIPLICITY
1668	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1836	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1669	#endif	1837	#endif
1670	if (expect_false (ev_is_active (w)))	1838	if (expect_false (ev_is_active (w)))
1671	return;	1839	return;
1672		1840
1673	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1841	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1674		1842
		1843	{
		1844	#ifndef _WIN32
		1845	sigset_t full, prev;
		1846	sigfillset (&full);
		1847	sigprocmask (SIG_SETMASK, &full, &prev);
		1848	#endif
		1849
		1850	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1851
		1852	#ifndef _WIN32
		1853	sigprocmask (SIG_SETMASK, &prev, 0);
		1854	#endif
		1855	}
		1856
1675	ev_start (EV_A_ (W)w, 1);	1857	ev_start (EV_A_ (W)w, 1);
1676	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1677	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1858	wlist_add (&signals [w->signum - 1].head, (WL)w);
1678		1859
1679	if (!((WL)w)->next)	1860	if (!((WL)w)->next)
1680	{	1861	{
1681	#if _WIN32	1862	#if _WIN32
1682	signal (w->signum, sighandler);	1863	signal (w->signum, sighandler);
…		…
1688	sigaction (w->signum, &sa, 0);	1869	sigaction (w->signum, &sa, 0);
1689	#endif	1870	#endif
1690	}	1871	}
1691	}	1872	}
1692		1873
1693	void	1874	void noinline
1694	ev_signal_stop (EV_P_ ev_signal *w)	1875	ev_signal_stop (EV_P_ ev_signal *w)
1695	{	1876	{
1696	ev_clear_pending (EV_A_ (W)w);	1877	clear_pending (EV_A_ (W)w);
1697	if (expect_false (!ev_is_active (w)))	1878	if (expect_false (!ev_is_active (w)))
1698	return;	1879	return;
1699		1880
1700	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1881	wlist_del (&signals [w->signum - 1].head, (WL)w);
1701	ev_stop (EV_A_ (W)w);	1882	ev_stop (EV_A_ (W)w);
1702		1883
1703	if (!signals [w->signum - 1].head)	1884	if (!signals [w->signum - 1].head)
1704	signal (w->signum, SIG_DFL);	1885	signal (w->signum, SIG_DFL);
1705	}	1886	}
…		…
1712	#endif	1893	#endif
1713	if (expect_false (ev_is_active (w)))	1894	if (expect_false (ev_is_active (w)))
1714	return;	1895	return;
1715		1896
1716	ev_start (EV_A_ (W)w, 1);	1897	ev_start (EV_A_ (W)w, 1);
1717	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1898	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1718	}	1899	}
1719		1900
1720	void	1901	void
1721	ev_child_stop (EV_P_ ev_child *w)	1902	ev_child_stop (EV_P_ ev_child *w)
1722	{	1903	{
1723	ev_clear_pending (EV_A_ (W)w);	1904	clear_pending (EV_A_ (W)w);
1724	if (expect_false (!ev_is_active (w)))	1905	if (expect_false (!ev_is_active (w)))
1725	return;	1906	return;
1726		1907
1727	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1908	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1728	ev_stop (EV_A_ (W)w);	1909	ev_stop (EV_A_ (W)w);
1729	}	1910	}
1730		1911
1731	#if EV_STAT_ENABLE	1912	#if EV_STAT_ENABLE
1732		1913
…		…
1964	}	2145	}
1965		2146
1966	void	2147	void
1967	ev_stat_stop (EV_P_ ev_stat *w)	2148	ev_stat_stop (EV_P_ ev_stat *w)
1968	{	2149	{
1969	ev_clear_pending (EV_A_ (W)w);	2150	clear_pending (EV_A_ (W)w);
1970	if (expect_false (!ev_is_active (w)))	2151	if (expect_false (!ev_is_active (w)))
1971	return;	2152	return;
1972		2153
1973	#if EV_USE_INOTIFY	2154	#if EV_USE_INOTIFY
1974	infy_del (EV_A_ w);	2155	infy_del (EV_A_ w);
…		…
1977		2158
1978	ev_stop (EV_A_ (W)w);	2159	ev_stop (EV_A_ (W)w);
1979	}	2160	}
1980	#endif	2161	#endif
1981		2162
		2163	#if EV_IDLE_ENABLE
1982	void	2164	void
1983	ev_idle_start (EV_P_ ev_idle *w)	2165	ev_idle_start (EV_P_ ev_idle *w)
1984	{	2166	{
1985	if (expect_false (ev_is_active (w)))	2167	if (expect_false (ev_is_active (w)))
1986	return;	2168	return;
1987		2169
		2170	pri_adjust (EV_A_ (W)w);
		2171
		2172	{
		2173	int active = ++idlecnt [ABSPRI (w)];
		2174
		2175	++idleall;
1988	ev_start (EV_A_ (W)w, ++idlecnt);	2176	ev_start (EV_A_ (W)w, active);
		2177
1989	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2178	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1990	idles [idlecnt - 1] = w;	2179	idles [ABSPRI (w)][active - 1] = w;
		2180	}
1991	}	2181	}
1992		2182
1993	void	2183	void
1994	ev_idle_stop (EV_P_ ev_idle *w)	2184	ev_idle_stop (EV_P_ ev_idle *w)
1995	{	2185	{
1996	ev_clear_pending (EV_A_ (W)w);	2186	clear_pending (EV_A_ (W)w);
1997	if (expect_false (!ev_is_active (w)))	2187	if (expect_false (!ev_is_active (w)))
1998	return;	2188	return;
1999		2189
2000	{	2190	{
2001	int active = ((W)w)->active;	2191	int active = ((W)w)->active;
2002	idles [active - 1] = idles [--idlecnt];	2192
		2193	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2003	((W)idles [active - 1])->active = active;	2194	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2195
		2196	ev_stop (EV_A_ (W)w);
		2197	--idleall;
2004	}	2198	}
2005
2006	ev_stop (EV_A_ (W)w);
2007	}	2199	}
		2200	#endif
2008		2201
2009	void	2202	void
2010	ev_prepare_start (EV_P_ ev_prepare *w)	2203	ev_prepare_start (EV_P_ ev_prepare *w)
2011	{	2204	{
2012	if (expect_false (ev_is_active (w)))	2205	if (expect_false (ev_is_active (w)))
…		…
2018	}	2211	}
2019		2212
2020	void	2213	void
2021	ev_prepare_stop (EV_P_ ev_prepare *w)	2214	ev_prepare_stop (EV_P_ ev_prepare *w)
2022	{	2215	{
2023	ev_clear_pending (EV_A_ (W)w);	2216	clear_pending (EV_A_ (W)w);
2024	if (expect_false (!ev_is_active (w)))	2217	if (expect_false (!ev_is_active (w)))
2025	return;	2218	return;
2026		2219
2027	{	2220	{
2028	int active = ((W)w)->active;	2221	int active = ((W)w)->active;
…		…
2045	}	2238	}
2046		2239
2047	void	2240	void
2048	ev_check_stop (EV_P_ ev_check *w)	2241	ev_check_stop (EV_P_ ev_check *w)
2049	{	2242	{
2050	ev_clear_pending (EV_A_ (W)w);	2243	clear_pending (EV_A_ (W)w);
2051	if (expect_false (!ev_is_active (w)))	2244	if (expect_false (!ev_is_active (w)))
2052	return;	2245	return;
2053		2246
2054	{	2247	{
2055	int active = ((W)w)->active;	2248	int active = ((W)w)->active;
…		…
2062		2255
2063	#if EV_EMBED_ENABLE	2256	#if EV_EMBED_ENABLE
2064	void noinline	2257	void noinline
2065	ev_embed_sweep (EV_P_ ev_embed *w)	2258	ev_embed_sweep (EV_P_ ev_embed *w)
2066	{	2259	{
2067	ev_loop (w->loop, EVLOOP_NONBLOCK);	2260	ev_loop (w->other, EVLOOP_NONBLOCK);
2068	}	2261	}
2069		2262
2070	static void	2263	static void
2071	embed_cb (EV_P_ ev_io *io, int revents)	2264	embed_io_cb (EV_P_ ev_io *io, int revents)
2072	{	2265	{
2073	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2266	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2074		2267
2075	if (ev_cb (w))	2268	if (ev_cb (w))
2076	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2269	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2077	else	2270	else
2078	ev_embed_sweep (loop, w);	2271	ev_embed_sweep (loop, w);
2079	}	2272	}
2080		2273
		2274	static void
		2275	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2276	{
		2277	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2278
		2279	fd_reify (w->other);
		2280	}
		2281
2081	void	2282	void
2082	ev_embed_start (EV_P_ ev_embed *w)	2283	ev_embed_start (EV_P_ ev_embed *w)
2083	{	2284	{
2084	if (expect_false (ev_is_active (w)))	2285	if (expect_false (ev_is_active (w)))
2085	return;	2286	return;
2086		2287
2087	{	2288	{
2088	struct ev_loop *loop = w->loop;	2289	struct ev_loop *loop = w->other;
2089	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2290	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2090	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2291	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2091	}	2292	}
2092		2293
2093	ev_set_priority (&w->io, ev_priority (w));	2294	ev_set_priority (&w->io, ev_priority (w));
2094	ev_io_start (EV_A_ &w->io);	2295	ev_io_start (EV_A_ &w->io);
2095		2296
		2297	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2298	ev_set_priority (&w->prepare, EV_MINPRI);
		2299	ev_prepare_start (EV_A_ &w->prepare);
		2300
2096	ev_start (EV_A_ (W)w, 1);	2301	ev_start (EV_A_ (W)w, 1);
2097	}	2302	}
2098		2303
2099	void	2304	void
2100	ev_embed_stop (EV_P_ ev_embed *w)	2305	ev_embed_stop (EV_P_ ev_embed *w)
2101	{	2306	{
2102	ev_clear_pending (EV_A_ (W)w);	2307	clear_pending (EV_A_ (W)w);
2103	if (expect_false (!ev_is_active (w)))	2308	if (expect_false (!ev_is_active (w)))
2104	return;	2309	return;
2105		2310
2106	ev_io_stop (EV_A_ &w->io);	2311	ev_io_stop (EV_A_ &w->io);
		2312	ev_prepare_stop (EV_A_ &w->prepare);
2107		2313
2108	ev_stop (EV_A_ (W)w);	2314	ev_stop (EV_A_ (W)w);
2109	}	2315	}
2110	#endif	2316	#endif
2111		2317
…		…
2122	}	2328	}
2123		2329
2124	void	2330	void
2125	ev_fork_stop (EV_P_ ev_fork *w)	2331	ev_fork_stop (EV_P_ ev_fork *w)
2126	{	2332	{
2127	ev_clear_pending (EV_A_ (W)w);	2333	clear_pending (EV_A_ (W)w);
2128	if (expect_false (!ev_is_active (w)))	2334	if (expect_false (!ev_is_active (w)))
2129	return;	2335	return;
2130		2336
2131	{	2337	{
2132	int active = ((W)w)->active;	2338	int active = ((W)w)->active;
…		…
2200	ev_timer_set (&once->to, timeout, 0.);	2406	ev_timer_set (&once->to, timeout, 0.);
2201	ev_timer_start (EV_A_ &once->to);	2407	ev_timer_start (EV_A_ &once->to);
2202	}	2408	}
2203	}	2409	}
2204		2410
		2411	#if EV_MULTIPLICITY
		2412	#include "ev_wrap.h"
		2413	#endif
		2414
2205	#ifdef __cplusplus	2415	#ifdef __cplusplus
2206	}	2416	}
2207	#endif	2417	#endif
2208		2418

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.161 by root, Sat Dec 1 23:43:45 2007 UTC vs. Revision 1.194 by root, Sat Dec 22 07:03:31 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.161 by root, Sat Dec 1 23:43:45 2007 UTC vs.
Revision 1.194 by root, Sat Dec 22 07:03:31 2007 UTC