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

Comparing libev/ev.c (file contents):
Revision 1.162 by root, Mon Dec 3 13:41:24 2007 UTC vs.
Revision 1.197 by root, Sat Dec 22 15:20:13 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	{
880	return EVBACKEND_EPOLL	977	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
881	\| EVBACKEND_KQUEUE	978
882	\| EVBACKEND_PORT;	979	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		980	/* please fix it and tell me how to detect the fix */
		981	flags &= ~EVBACKEND_EPOLL;
		982
		983	return flags;
883	}	984	}
884		985
885	unsigned int	986	unsigned int
886	ev_backend (EV_P)	987	ev_backend (EV_P)
887	{	988	{
…		…
890		991
891	unsigned int	992	unsigned int
892	ev_loop_count (EV_P)	993	ev_loop_count (EV_P)
893	{	994	{
894	return loop_count;	995	return loop_count;
		996	}
		997
		998	void
		999	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1000	{
		1001	io_blocktime = interval;
		1002	}
		1003
		1004	void
		1005	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1006	{
		1007	timeout_blocktime = interval;
895	}	1008	}
896		1009
897	static void noinline	1010	static void noinline
898	loop_init (EV_P_ unsigned int flags)	1011	loop_init (EV_P_ unsigned int flags)
899	{	1012	{
…		…
910	ev_rt_now = ev_time ();	1023	ev_rt_now = ev_time ();
911	mn_now = get_clock ();	1024	mn_now = get_clock ();
912	now_floor = mn_now;	1025	now_floor = mn_now;
913	rtmn_diff = ev_rt_now - mn_now;	1026	rtmn_diff = ev_rt_now - mn_now;
914		1027
		1028	io_blocktime = 0.;
		1029	timeout_blocktime = 0.;
		1030
915	/* pid check not overridable via env */	1031	/* pid check not overridable via env */
916	#ifndef _WIN32	1032	#ifndef _WIN32
917	if (flags & EVFLAG_FORKCHECK)	1033	if (flags & EVFLAG_FORKCHECK)
918	curpid = getpid ();	1034	curpid = getpid ();
919	#endif	1035	#endif
…		…
981	#if EV_USE_SELECT	1097	#if EV_USE_SELECT
982	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1098	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
983	#endif	1099	#endif
984		1100
985	for (i = NUMPRI; i--; )	1101	for (i = NUMPRI; i--; )
		1102	{
986	array_free (pending, [i]);	1103	array_free (pending, [i]);
		1104	#if EV_IDLE_ENABLE
		1105	array_free (idle, [i]);
		1106	#endif
		1107	}
		1108
		1109	ev_free (anfds); anfdmax = 0;
987		1110
988	/* have to use the microsoft-never-gets-it-right macro */	1111	/* have to use the microsoft-never-gets-it-right macro */
989	array_free (fdchange, EMPTY0);	1112	array_free (fdchange, EMPTY);
990	array_free (timer, EMPTY0);	1113	array_free (timer, EMPTY);
991	#if EV_PERIODIC_ENABLE	1114	#if EV_PERIODIC_ENABLE
992	array_free (periodic, EMPTY0);	1115	array_free (periodic, EMPTY);
993	#endif	1116	#endif
		1117	#if EV_FORK_ENABLE
994	array_free (idle, EMPTY0);	1118	array_free (fork, EMPTY);
		1119	#endif
995	array_free (prepare, EMPTY0);	1120	array_free (prepare, EMPTY);
996	array_free (check, EMPTY0);	1121	array_free (check, EMPTY);
997		1122
998	backend = 0;	1123	backend = 0;
999	}	1124	}
1000		1125
1001	void inline_size infy_fork (EV_P);	1126	void inline_size infy_fork (EV_P);
…		…
1137	postfork = 1;	1262	postfork = 1;
1138	}	1263	}
1139		1264
1140	/*****************************************************************************/	1265	/*****************************************************************************/
1141		1266
1142	int inline_size	1267	void
1143	any_pending (EV_P)	1268	ev_invoke (EV_P_ void *w, int revents)
1144	{	1269	{
1145	int pri;	1270	EV_CB_INVOKE ((W)w, revents);
1146
1147	for (pri = NUMPRI; pri--; )
1148	if (pendingcnt [pri])
1149	return 1;
1150
1151	return 0;
1152	}	1271	}
1153		1272
1154	void inline_speed	1273	void inline_speed
1155	call_pending (EV_P)	1274	call_pending (EV_P)
1156	{	1275	{
…		…
1174	void inline_size	1293	void inline_size
1175	timers_reify (EV_P)	1294	timers_reify (EV_P)
1176	{	1295	{
1177	while (timercnt && ((WT)timers [0])->at <= mn_now)	1296	while (timercnt && ((WT)timers [0])->at <= mn_now)
1178	{	1297	{
1179	ev_timer *w = timers [0];	1298	ev_timer w = (ev_timer )timers [0];
1180		1299
1181	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1300	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1182		1301
1183	/* first reschedule or stop timer */	1302	/* first reschedule or stop timer */
1184	if (w->repeat)	1303	if (w->repeat)
…		…
1187		1306
1188	((WT)w)->at += w->repeat;	1307	((WT)w)->at += w->repeat;
1189	if (((WT)w)->at < mn_now)	1308	if (((WT)w)->at < mn_now)
1190	((WT)w)->at = mn_now;	1309	((WT)w)->at = mn_now;
1191		1310
1192	downheap ((WT *)timers, timercnt, 0);	1311	downheap (timers, timercnt, 0);
1193	}	1312	}
1194	else	1313	else
1195	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1314	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1196		1315
1197	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1316	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1202	void inline_size	1321	void inline_size
1203	periodics_reify (EV_P)	1322	periodics_reify (EV_P)
1204	{	1323	{
1205	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1324	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1206	{	1325	{
1207	ev_periodic *w = periodics [0];	1326	ev_periodic w = (ev_periodic )periodics [0];
1208		1327
1209	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1328	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1210		1329
1211	/* first reschedule or stop timer */	1330	/* first reschedule or stop timer */
1212	if (w->reschedule_cb)	1331	if (w->reschedule_cb)
1213	{	1332	{
1214	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1333	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1215	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1334	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1216	downheap ((WT *)periodics, periodiccnt, 0);	1335	downheap (periodics, periodiccnt, 0);
1217	}	1336	}
1218	else if (w->interval)	1337	else if (w->interval)
1219	{	1338	{
1220	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1339	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1340	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1221	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1341	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1222	downheap ((WT *)periodics, periodiccnt, 0);	1342	downheap (periodics, periodiccnt, 0);
1223	}	1343	}
1224	else	1344	else
1225	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1345	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1226		1346
1227	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1347	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1234	int i;	1354	int i;
1235		1355
1236	/* adjust periodics after time jump */	1356	/* adjust periodics after time jump */
1237	for (i = 0; i < periodiccnt; ++i)	1357	for (i = 0; i < periodiccnt; ++i)
1238	{	1358	{
1239	ev_periodic *w = periodics [i];	1359	ev_periodic w = (ev_periodic )periodics [i];
1240		1360
1241	if (w->reschedule_cb)	1361	if (w->reschedule_cb)
1242	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1362	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1243	else if (w->interval)	1363	else if (w->interval)
1244	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1364	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1245	}	1365	}
1246		1366
1247	/* now rebuild the heap */	1367	/* now rebuild the heap */
1248	for (i = periodiccnt >> 1; i--; )	1368	for (i = periodiccnt >> 1; i--; )
1249	downheap ((WT *)periodics, periodiccnt, i);	1369	downheap (periodics, periodiccnt, i);
1250	}	1370	}
1251	#endif	1371	#endif
1252		1372
		1373	#if EV_IDLE_ENABLE
1253	int inline_size	1374	void inline_size
1254	time_update_monotonic (EV_P)	1375	idle_reify (EV_P)
1255	{	1376	{
		1377	if (expect_false (idleall))
		1378	{
		1379	int pri;
		1380
		1381	for (pri = NUMPRI; pri--; )
		1382	{
		1383	if (pendingcnt [pri])
		1384	break;
		1385
		1386	if (idlecnt [pri])
		1387	{
		1388	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1389	break;
		1390	}
		1391	}
		1392	}
		1393	}
		1394	#endif
		1395
		1396	void inline_speed
		1397	time_update (EV_P_ ev_tstamp max_block)
		1398	{
		1399	int i;
		1400
		1401	#if EV_USE_MONOTONIC
		1402	if (expect_true (have_monotonic))
		1403	{
		1404	ev_tstamp odiff = rtmn_diff;
		1405
1256	mn_now = get_clock ();	1406	mn_now = get_clock ();
1257		1407
		1408	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1409	/* interpolate in the meantime */
1258	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1410	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1259	{	1411	{
1260	ev_rt_now = rtmn_diff + mn_now;	1412	ev_rt_now = rtmn_diff + mn_now;
1261	return 0;	1413	return;
1262	}	1414	}
1263	else	1415
1264	{
1265	now_floor = mn_now;	1416	now_floor = mn_now;
1266	ev_rt_now = ev_time ();	1417	ev_rt_now = ev_time ();
1267	return 1;
1268	}
1269	}
1270		1418
1271	void inline_size	1419	/* loop a few times, before making important decisions.
1272	time_update (EV_P)	1420	* on the choice of "4": one iteration isn't enough,
1273	{	1421	* in case we get preempted during the calls to
1274	int i;	1422	* ev_time and get_clock. a second call is almost guaranteed
1275		1423	* to succeed in that case, though. and looping a few more times
1276	#if EV_USE_MONOTONIC	1424	* doesn't hurt either as we only do this on time-jumps or
1277	if (expect_true (have_monotonic))	1425	* in the unlikely event of having been preempted here.
1278	{	1426	*/
1279	if (time_update_monotonic (EV_A))	1427	for (i = 4; --i; )
1280	{	1428	{
1281	ev_tstamp odiff = rtmn_diff;
1282
1283	/* loop a few times, before making important decisions.
1284	* on the choice of "4": one iteration isn't enough,
1285	* in case we get preempted during the calls to
1286	* ev_time and get_clock. a second call is almost guaranteed
1287	* to succeed in that case, though. and looping a few more times
1288	* doesn't hurt either as we only do this on time-jumps or
1289	* in the unlikely event of having been preempted here.
1290	*/
1291	for (i = 4; --i; )
1292	{
1293	rtmn_diff = ev_rt_now - mn_now;	1429	rtmn_diff = ev_rt_now - mn_now;
1294		1430
1295	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1431	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1296	return; /* all is well */	1432	return; /* all is well */
1297		1433
1298	ev_rt_now = ev_time ();	1434	ev_rt_now = ev_time ();
1299	mn_now = get_clock ();	1435	mn_now = get_clock ();
1300	now_floor = mn_now;	1436	now_floor = mn_now;
1301	}	1437	}
1302		1438
1303	# if EV_PERIODIC_ENABLE	1439	# if EV_PERIODIC_ENABLE
1304	periodics_reschedule (EV_A);	1440	periodics_reschedule (EV_A);
1305	# endif	1441	# endif
1306	/* no timer adjustment, as the monotonic clock doesn't jump */	1442	/* no timer adjustment, as the monotonic clock doesn't jump */
1307	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1443	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1308	}
1309	}	1444	}
1310	else	1445	else
1311	#endif	1446	#endif
1312	{	1447	{
1313	ev_rt_now = ev_time ();	1448	ev_rt_now = ev_time ();
1314		1449
1315	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1450	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1316	{	1451	{
1317	#if EV_PERIODIC_ENABLE	1452	#if EV_PERIODIC_ENABLE
1318	periodics_reschedule (EV_A);	1453	periodics_reschedule (EV_A);
1319	#endif	1454	#endif
1320
1321	/* adjust timers. this is easy, as the offset is the same for all of them */	1455	/* adjust timers. this is easy, as the offset is the same for all of them */
1322	for (i = 0; i < timercnt; ++i)	1456	for (i = 0; i < timercnt; ++i)
1323	((WT)timers [i])->at += ev_rt_now - mn_now;	1457	((WT)timers [i])->at += ev_rt_now - mn_now;
1324	}	1458	}
1325		1459
…		…
1369	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1503	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1370	call_pending (EV_A);	1504	call_pending (EV_A);
1371	}	1505	}
1372	#endif	1506	#endif
1373		1507
1374	/* queue check watchers (and execute them) */	1508	/* queue prepare watchers (and execute them) */
1375	if (expect_false (preparecnt))	1509	if (expect_false (preparecnt))
1376	{	1510	{
1377	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1511	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1378	call_pending (EV_A);	1512	call_pending (EV_A);
1379	}	1513	}
…		…
1388	/* update fd-related kernel structures */	1522	/* update fd-related kernel structures */
1389	fd_reify (EV_A);	1523	fd_reify (EV_A);
1390		1524
1391	/* calculate blocking time */	1525	/* calculate blocking time */
1392	{	1526	{
1393	ev_tstamp block;	1527	ev_tstamp waittime = 0.;
		1528	ev_tstamp sleeptime = 0.;
1394		1529
1395	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idlecnt \|\| !activecnt))	1530	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1396	block = 0.; /* do not block at all */
1397	else
1398	{	1531	{
1399	/* update time to cancel out callback processing overhead */	1532	/* update time to cancel out callback processing overhead */
1400	#if EV_USE_MONOTONIC
1401	if (expect_true (have_monotonic))
1402	time_update_monotonic (EV_A);	1533	time_update (EV_A_ 1e100);
1403	else
1404	#endif
1405	{
1406	ev_rt_now = ev_time ();
1407	mn_now = ev_rt_now;
1408	}
1409		1534
1410	block = MAX_BLOCKTIME;	1535	waittime = MAX_BLOCKTIME;
1411		1536
1412	if (timercnt)	1537	if (timercnt)
1413	{	1538	{
1414	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1539	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1415	if (block > to) block = to;	1540	if (waittime > to) waittime = to;
1416	}	1541	}
1417		1542
1418	#if EV_PERIODIC_ENABLE	1543	#if EV_PERIODIC_ENABLE
1419	if (periodiccnt)	1544	if (periodiccnt)
1420	{	1545	{
1421	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1546	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1422	if (block > to) block = to;	1547	if (waittime > to) waittime = to;
1423	}	1548	}
1424	#endif	1549	#endif
1425		1550
1426	if (expect_false (block < 0.)) block = 0.;	1551	if (expect_false (waittime < timeout_blocktime))
		1552	waittime = timeout_blocktime;
		1553
		1554	sleeptime = waittime - backend_fudge;
		1555
		1556	if (expect_true (sleeptime > io_blocktime))
		1557	sleeptime = io_blocktime;
		1558
		1559	if (sleeptime)
		1560	{
		1561	ev_sleep (sleeptime);
		1562	waittime -= sleeptime;
		1563	}
1427	}	1564	}
1428		1565
1429	++loop_count;	1566	++loop_count;
1430	backend_poll (EV_A_ block);	1567	backend_poll (EV_A_ waittime);
		1568
		1569	/* update ev_rt_now, do magic */
		1570	time_update (EV_A_ waittime + sleeptime);
1431	}	1571	}
1432
1433	/* update ev_rt_now, do magic */
1434	time_update (EV_A);
1435		1572
1436	/* queue pending timers and reschedule them */	1573	/* queue pending timers and reschedule them */
1437	timers_reify (EV_A); /* relative timers called last */	1574	timers_reify (EV_A); /* relative timers called last */
1438	#if EV_PERIODIC_ENABLE	1575	#if EV_PERIODIC_ENABLE
1439	periodics_reify (EV_A); /* absolute timers called first */	1576	periodics_reify (EV_A); /* absolute timers called first */
1440	#endif	1577	#endif
1441		1578
		1579	#if EV_IDLE_ENABLE
1442	/* queue idle watchers unless other events are pending */	1580	/* queue idle watchers unless other events are pending */
1443	if (idlecnt && !any_pending (EV_A))	1581	idle_reify (EV_A);
1444	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1582	#endif
1445		1583
1446	/* queue check watchers, to be executed first */	1584	/* queue check watchers, to be executed first */
1447	if (expect_false (checkcnt))	1585	if (expect_false (checkcnt))
1448	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1586	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1449		1587
…		…
1485	head = &(*head)->next;	1623	head = &(*head)->next;
1486	}	1624	}
1487	}	1625	}
1488		1626
1489	void inline_speed	1627	void inline_speed
1490	ev_clear_pending (EV_P_ W w)	1628	clear_pending (EV_P_ W w)
1491	{	1629	{
1492	if (w->pending)	1630	if (w->pending)
1493	{	1631	{
1494	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1632	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1495	w->pending = 0;	1633	w->pending = 0;
1496	}	1634	}
1497	}	1635	}
1498		1636
		1637	int
		1638	ev_clear_pending (EV_P_ void *w)
		1639	{
		1640	W w_ = (W)w;
		1641	int pending = w_->pending;
		1642
		1643	if (expect_true (pending))
		1644	{
		1645	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1646	w_->pending = 0;
		1647	p->w = 0;
		1648	return p->events;
		1649	}
		1650	else
		1651	return 0;
		1652	}
		1653
		1654	void inline_size
		1655	pri_adjust (EV_P_ W w)
		1656	{
		1657	int pri = w->priority;
		1658	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1659	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1660	w->priority = pri;
		1661	}
		1662
1499	void inline_speed	1663	void inline_speed
1500	ev_start (EV_P_ W w, int active)	1664	ev_start (EV_P_ W w, int active)
1501	{	1665	{
1502	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1666	pri_adjust (EV_A_ w);
1503	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1504
1505	w->active = active;	1667	w->active = active;
1506	ev_ref (EV_A);	1668	ev_ref (EV_A);
1507	}	1669	}
1508		1670
1509	void inline_size	1671	void inline_size
…		…
1513	w->active = 0;	1675	w->active = 0;
1514	}	1676	}
1515		1677
1516	/*****************************************************************************/	1678	/*****************************************************************************/
1517		1679
1518	void	1680	void noinline
1519	ev_io_start (EV_P_ ev_io *w)	1681	ev_io_start (EV_P_ ev_io *w)
1520	{	1682	{
1521	int fd = w->fd;	1683	int fd = w->fd;
1522		1684
1523	if (expect_false (ev_is_active (w)))	1685	if (expect_false (ev_is_active (w)))
…		…
1525		1687
1526	assert (("ev_io_start called with negative fd", fd >= 0));	1688	assert (("ev_io_start called with negative fd", fd >= 0));
1527		1689
1528	ev_start (EV_A_ (W)w, 1);	1690	ev_start (EV_A_ (W)w, 1);
1529	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1691	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1530	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1692	wlist_add (&anfds[fd].head, (WL)w);
1531		1693
1532	fd_change (EV_A_ fd);	1694	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1695	w->events &= ~EV_IOFDSET;
1533	}	1696	}
1534		1697
1535	void	1698	void noinline
1536	ev_io_stop (EV_P_ ev_io *w)	1699	ev_io_stop (EV_P_ ev_io *w)
1537	{	1700	{
1538	ev_clear_pending (EV_A_ (W)w);	1701	clear_pending (EV_A_ (W)w);
1539	if (expect_false (!ev_is_active (w)))	1702	if (expect_false (!ev_is_active (w)))
1540	return;	1703	return;
1541		1704
1542	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1705	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1543		1706
1544	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1707	wlist_del (&anfds[w->fd].head, (WL)w);
1545	ev_stop (EV_A_ (W)w);	1708	ev_stop (EV_A_ (W)w);
1546		1709
1547	fd_change (EV_A_ w->fd);	1710	fd_change (EV_A_ w->fd, 1);
1548	}	1711	}
1549		1712
1550	void	1713	void noinline
1551	ev_timer_start (EV_P_ ev_timer *w)	1714	ev_timer_start (EV_P_ ev_timer *w)
1552	{	1715	{
1553	if (expect_false (ev_is_active (w)))	1716	if (expect_false (ev_is_active (w)))
1554	return;	1717	return;
1555		1718
1556	((WT)w)->at += mn_now;	1719	((WT)w)->at += mn_now;
1557		1720
1558	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1721	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1559		1722
1560	ev_start (EV_A_ (W)w, ++timercnt);	1723	ev_start (EV_A_ (W)w, ++timercnt);
1561	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1724	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1562	timers [timercnt - 1] = w;	1725	timers [timercnt - 1] = (WT)w;
1563	upheap ((WT *)timers, timercnt - 1);	1726	upheap (timers, timercnt - 1);
1564		1727
1565	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1728	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1566	}	1729	}
1567		1730
1568	void	1731	void noinline
1569	ev_timer_stop (EV_P_ ev_timer *w)	1732	ev_timer_stop (EV_P_ ev_timer *w)
1570	{	1733	{
1571	ev_clear_pending (EV_A_ (W)w);	1734	clear_pending (EV_A_ (W)w);
1572	if (expect_false (!ev_is_active (w)))	1735	if (expect_false (!ev_is_active (w)))
1573	return;	1736	return;
1574		1737
1575	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1738	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1576		1739
1577	{	1740	{
1578	int active = ((W)w)->active;	1741	int active = ((W)w)->active;
1579		1742
1580	if (expect_true (--active < --timercnt))	1743	if (expect_true (--active < --timercnt))
1581	{	1744	{
1582	timers [active] = timers [timercnt];	1745	timers [active] = timers [timercnt];
1583	adjustheap ((WT *)timers, timercnt, active);	1746	adjustheap (timers, timercnt, active);
1584	}	1747	}
1585	}	1748	}
1586		1749
1587	((WT)w)->at -= mn_now;	1750	((WT)w)->at -= mn_now;
1588		1751
1589	ev_stop (EV_A_ (W)w);	1752	ev_stop (EV_A_ (W)w);
1590	}	1753	}
1591		1754
1592	void	1755	void noinline
1593	ev_timer_again (EV_P_ ev_timer *w)	1756	ev_timer_again (EV_P_ ev_timer *w)
1594	{	1757	{
1595	if (ev_is_active (w))	1758	if (ev_is_active (w))
1596	{	1759	{
1597	if (w->repeat)	1760	if (w->repeat)
1598	{	1761	{
1599	((WT)w)->at = mn_now + w->repeat;	1762	((WT)w)->at = mn_now + w->repeat;
1600	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1763	adjustheap (timers, timercnt, ((W)w)->active - 1);
1601	}	1764	}
1602	else	1765	else
1603	ev_timer_stop (EV_A_ w);	1766	ev_timer_stop (EV_A_ w);
1604	}	1767	}
1605	else if (w->repeat)	1768	else if (w->repeat)
…		…
1608	ev_timer_start (EV_A_ w);	1771	ev_timer_start (EV_A_ w);
1609	}	1772	}
1610	}	1773	}
1611		1774
1612	#if EV_PERIODIC_ENABLE	1775	#if EV_PERIODIC_ENABLE
1613	void	1776	void noinline
1614	ev_periodic_start (EV_P_ ev_periodic *w)	1777	ev_periodic_start (EV_P_ ev_periodic *w)
1615	{	1778	{
1616	if (expect_false (ev_is_active (w)))	1779	if (expect_false (ev_is_active (w)))
1617	return;	1780	return;
1618		1781
…		…
1620	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1783	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1621	else if (w->interval)	1784	else if (w->interval)
1622	{	1785	{
1623	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1786	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1624	/* this formula differs from the one in periodic_reify because we do not always round up */	1787	/* this formula differs from the one in periodic_reify because we do not always round up */
1625	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1788	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1626	}	1789	}
		1790	else
		1791	((WT)w)->at = w->offset;
1627		1792
1628	ev_start (EV_A_ (W)w, ++periodiccnt);	1793	ev_start (EV_A_ (W)w, ++periodiccnt);
1629	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1794	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1630	periodics [periodiccnt - 1] = w;	1795	periodics [periodiccnt - 1] = (WT)w;
1631	upheap ((WT *)periodics, periodiccnt - 1);	1796	upheap (periodics, periodiccnt - 1);
1632		1797
1633	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1798	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1634	}	1799	}
1635		1800
1636	void	1801	void noinline
1637	ev_periodic_stop (EV_P_ ev_periodic *w)	1802	ev_periodic_stop (EV_P_ ev_periodic *w)
1638	{	1803	{
1639	ev_clear_pending (EV_A_ (W)w);	1804	clear_pending (EV_A_ (W)w);
1640	if (expect_false (!ev_is_active (w)))	1805	if (expect_false (!ev_is_active (w)))
1641	return;	1806	return;
1642		1807
1643	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1808	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1644		1809
1645	{	1810	{
1646	int active = ((W)w)->active;	1811	int active = ((W)w)->active;
1647		1812
1648	if (expect_true (--active < --periodiccnt))	1813	if (expect_true (--active < --periodiccnt))
1649	{	1814	{
1650	periodics [active] = periodics [periodiccnt];	1815	periodics [active] = periodics [periodiccnt];
1651	adjustheap ((WT *)periodics, periodiccnt, active);	1816	adjustheap (periodics, periodiccnt, active);
1652	}	1817	}
1653	}	1818	}
1654		1819
1655	ev_stop (EV_A_ (W)w);	1820	ev_stop (EV_A_ (W)w);
1656	}	1821	}
1657		1822
1658	void	1823	void noinline
1659	ev_periodic_again (EV_P_ ev_periodic *w)	1824	ev_periodic_again (EV_P_ ev_periodic *w)
1660	{	1825	{
1661	/* TODO: use adjustheap and recalculation */	1826	/* TODO: use adjustheap and recalculation */
1662	ev_periodic_stop (EV_A_ w);	1827	ev_periodic_stop (EV_A_ w);
1663	ev_periodic_start (EV_A_ w);	1828	ev_periodic_start (EV_A_ w);
…		…
1666		1831
1667	#ifndef SA_RESTART	1832	#ifndef SA_RESTART
1668	# define SA_RESTART 0	1833	# define SA_RESTART 0
1669	#endif	1834	#endif
1670		1835
1671	void	1836	void noinline
1672	ev_signal_start (EV_P_ ev_signal *w)	1837	ev_signal_start (EV_P_ ev_signal *w)
1673	{	1838	{
1674	#if EV_MULTIPLICITY	1839	#if EV_MULTIPLICITY
1675	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1840	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1676	#endif	1841	#endif
1677	if (expect_false (ev_is_active (w)))	1842	if (expect_false (ev_is_active (w)))
1678	return;	1843	return;
1679		1844
1680	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1845	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1681		1846
		1847	{
		1848	#ifndef _WIN32
		1849	sigset_t full, prev;
		1850	sigfillset (&full);
		1851	sigprocmask (SIG_SETMASK, &full, &prev);
		1852	#endif
		1853
		1854	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1855
		1856	#ifndef _WIN32
		1857	sigprocmask (SIG_SETMASK, &prev, 0);
		1858	#endif
		1859	}
		1860
1682	ev_start (EV_A_ (W)w, 1);	1861	ev_start (EV_A_ (W)w, 1);
1683	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1684	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1862	wlist_add (&signals [w->signum - 1].head, (WL)w);
1685		1863
1686	if (!((WL)w)->next)	1864	if (!((WL)w)->next)
1687	{	1865	{
1688	#if _WIN32	1866	#if _WIN32
1689	signal (w->signum, sighandler);	1867	signal (w->signum, sighandler);
…		…
1695	sigaction (w->signum, &sa, 0);	1873	sigaction (w->signum, &sa, 0);
1696	#endif	1874	#endif
1697	}	1875	}
1698	}	1876	}
1699		1877
1700	void	1878	void noinline
1701	ev_signal_stop (EV_P_ ev_signal *w)	1879	ev_signal_stop (EV_P_ ev_signal *w)
1702	{	1880	{
1703	ev_clear_pending (EV_A_ (W)w);	1881	clear_pending (EV_A_ (W)w);
1704	if (expect_false (!ev_is_active (w)))	1882	if (expect_false (!ev_is_active (w)))
1705	return;	1883	return;
1706		1884
1707	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1885	wlist_del (&signals [w->signum - 1].head, (WL)w);
1708	ev_stop (EV_A_ (W)w);	1886	ev_stop (EV_A_ (W)w);
1709		1887
1710	if (!signals [w->signum - 1].head)	1888	if (!signals [w->signum - 1].head)
1711	signal (w->signum, SIG_DFL);	1889	signal (w->signum, SIG_DFL);
1712	}	1890	}
…		…
1719	#endif	1897	#endif
1720	if (expect_false (ev_is_active (w)))	1898	if (expect_false (ev_is_active (w)))
1721	return;	1899	return;
1722		1900
1723	ev_start (EV_A_ (W)w, 1);	1901	ev_start (EV_A_ (W)w, 1);
1724	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1902	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1725	}	1903	}
1726		1904
1727	void	1905	void
1728	ev_child_stop (EV_P_ ev_child *w)	1906	ev_child_stop (EV_P_ ev_child *w)
1729	{	1907	{
1730	ev_clear_pending (EV_A_ (W)w);	1908	clear_pending (EV_A_ (W)w);
1731	if (expect_false (!ev_is_active (w)))	1909	if (expect_false (!ev_is_active (w)))
1732	return;	1910	return;
1733		1911
1734	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1912	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1735	ev_stop (EV_A_ (W)w);	1913	ev_stop (EV_A_ (W)w);
1736	}	1914	}
1737		1915
1738	#if EV_STAT_ENABLE	1916	#if EV_STAT_ENABLE
1739		1917
…		…
1971	}	2149	}
1972		2150
1973	void	2151	void
1974	ev_stat_stop (EV_P_ ev_stat *w)	2152	ev_stat_stop (EV_P_ ev_stat *w)
1975	{	2153	{
1976	ev_clear_pending (EV_A_ (W)w);	2154	clear_pending (EV_A_ (W)w);
1977	if (expect_false (!ev_is_active (w)))	2155	if (expect_false (!ev_is_active (w)))
1978	return;	2156	return;
1979		2157
1980	#if EV_USE_INOTIFY	2158	#if EV_USE_INOTIFY
1981	infy_del (EV_A_ w);	2159	infy_del (EV_A_ w);
…		…
1984		2162
1985	ev_stop (EV_A_ (W)w);	2163	ev_stop (EV_A_ (W)w);
1986	}	2164	}
1987	#endif	2165	#endif
1988		2166
		2167	#if EV_IDLE_ENABLE
1989	void	2168	void
1990	ev_idle_start (EV_P_ ev_idle *w)	2169	ev_idle_start (EV_P_ ev_idle *w)
1991	{	2170	{
1992	if (expect_false (ev_is_active (w)))	2171	if (expect_false (ev_is_active (w)))
1993	return;	2172	return;
1994		2173
		2174	pri_adjust (EV_A_ (W)w);
		2175
		2176	{
		2177	int active = ++idlecnt [ABSPRI (w)];
		2178
		2179	++idleall;
1995	ev_start (EV_A_ (W)w, ++idlecnt);	2180	ev_start (EV_A_ (W)w, active);
		2181
1996	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2182	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1997	idles [idlecnt - 1] = w;	2183	idles [ABSPRI (w)][active - 1] = w;
		2184	}
1998	}	2185	}
1999		2186
2000	void	2187	void
2001	ev_idle_stop (EV_P_ ev_idle *w)	2188	ev_idle_stop (EV_P_ ev_idle *w)
2002	{	2189	{
2003	ev_clear_pending (EV_A_ (W)w);	2190	clear_pending (EV_A_ (W)w);
2004	if (expect_false (!ev_is_active (w)))	2191	if (expect_false (!ev_is_active (w)))
2005	return;	2192	return;
2006		2193
2007	{	2194	{
2008	int active = ((W)w)->active;	2195	int active = ((W)w)->active;
2009	idles [active - 1] = idles [--idlecnt];	2196
		2197	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2010	((W)idles [active - 1])->active = active;	2198	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2199
		2200	ev_stop (EV_A_ (W)w);
		2201	--idleall;
2011	}	2202	}
2012
2013	ev_stop (EV_A_ (W)w);
2014	}	2203	}
		2204	#endif
2015		2205
2016	void	2206	void
2017	ev_prepare_start (EV_P_ ev_prepare *w)	2207	ev_prepare_start (EV_P_ ev_prepare *w)
2018	{	2208	{
2019	if (expect_false (ev_is_active (w)))	2209	if (expect_false (ev_is_active (w)))
…		…
2025	}	2215	}
2026		2216
2027	void	2217	void
2028	ev_prepare_stop (EV_P_ ev_prepare *w)	2218	ev_prepare_stop (EV_P_ ev_prepare *w)
2029	{	2219	{
2030	ev_clear_pending (EV_A_ (W)w);	2220	clear_pending (EV_A_ (W)w);
2031	if (expect_false (!ev_is_active (w)))	2221	if (expect_false (!ev_is_active (w)))
2032	return;	2222	return;
2033		2223
2034	{	2224	{
2035	int active = ((W)w)->active;	2225	int active = ((W)w)->active;
…		…
2052	}	2242	}
2053		2243
2054	void	2244	void
2055	ev_check_stop (EV_P_ ev_check *w)	2245	ev_check_stop (EV_P_ ev_check *w)
2056	{	2246	{
2057	ev_clear_pending (EV_A_ (W)w);	2247	clear_pending (EV_A_ (W)w);
2058	if (expect_false (!ev_is_active (w)))	2248	if (expect_false (!ev_is_active (w)))
2059	return;	2249	return;
2060		2250
2061	{	2251	{
2062	int active = ((W)w)->active;	2252	int active = ((W)w)->active;
…		…
2069		2259
2070	#if EV_EMBED_ENABLE	2260	#if EV_EMBED_ENABLE
2071	void noinline	2261	void noinline
2072	ev_embed_sweep (EV_P_ ev_embed *w)	2262	ev_embed_sweep (EV_P_ ev_embed *w)
2073	{	2263	{
2074	ev_loop (w->loop, EVLOOP_NONBLOCK);	2264	ev_loop (w->other, EVLOOP_NONBLOCK);
2075	}	2265	}
2076		2266
2077	static void	2267	static void
2078	embed_cb (EV_P_ ev_io *io, int revents)	2268	embed_io_cb (EV_P_ ev_io *io, int revents)
2079	{	2269	{
2080	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2270	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2081		2271
2082	if (ev_cb (w))	2272	if (ev_cb (w))
2083	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2273	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2084	else	2274	else
2085	ev_embed_sweep (loop, w);	2275	ev_loop (w->other, EVLOOP_NONBLOCK);
2086	}	2276	}
		2277
		2278	static void
		2279	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2280	{
		2281	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2282
		2283	{
		2284	struct ev_loop *loop = w->other;
		2285
		2286	while (fdchangecnt)
		2287	{
		2288	fd_reify (EV_A);
		2289	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2290	}
		2291	}
		2292	}
		2293
		2294	#if 0
		2295	static void
		2296	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2297	{
		2298	ev_idle_stop (EV_A_ idle);
		2299	}
		2300	#endif
2087		2301
2088	void	2302	void
2089	ev_embed_start (EV_P_ ev_embed *w)	2303	ev_embed_start (EV_P_ ev_embed *w)
2090	{	2304	{
2091	if (expect_false (ev_is_active (w)))	2305	if (expect_false (ev_is_active (w)))
2092	return;	2306	return;
2093		2307
2094	{	2308	{
2095	struct ev_loop *loop = w->loop;	2309	struct ev_loop *loop = w->other;
2096	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2310	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2097	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2311	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2098	}	2312	}
2099		2313
2100	ev_set_priority (&w->io, ev_priority (w));	2314	ev_set_priority (&w->io, ev_priority (w));
2101	ev_io_start (EV_A_ &w->io);	2315	ev_io_start (EV_A_ &w->io);
2102		2316
		2317	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2318	ev_set_priority (&w->prepare, EV_MINPRI);
		2319	ev_prepare_start (EV_A_ &w->prepare);
		2320
		2321	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2322
2103	ev_start (EV_A_ (W)w, 1);	2323	ev_start (EV_A_ (W)w, 1);
2104	}	2324	}
2105		2325
2106	void	2326	void
2107	ev_embed_stop (EV_P_ ev_embed *w)	2327	ev_embed_stop (EV_P_ ev_embed *w)
2108	{	2328	{
2109	ev_clear_pending (EV_A_ (W)w);	2329	clear_pending (EV_A_ (W)w);
2110	if (expect_false (!ev_is_active (w)))	2330	if (expect_false (!ev_is_active (w)))
2111	return;	2331	return;
2112		2332
2113	ev_io_stop (EV_A_ &w->io);	2333	ev_io_stop (EV_A_ &w->io);
		2334	ev_prepare_stop (EV_A_ &w->prepare);
2114		2335
2115	ev_stop (EV_A_ (W)w);	2336	ev_stop (EV_A_ (W)w);
2116	}	2337	}
2117	#endif	2338	#endif
2118		2339
…		…
2129	}	2350	}
2130		2351
2131	void	2352	void
2132	ev_fork_stop (EV_P_ ev_fork *w)	2353	ev_fork_stop (EV_P_ ev_fork *w)
2133	{	2354	{
2134	ev_clear_pending (EV_A_ (W)w);	2355	clear_pending (EV_A_ (W)w);
2135	if (expect_false (!ev_is_active (w)))	2356	if (expect_false (!ev_is_active (w)))
2136	return;	2357	return;
2137		2358
2138	{	2359	{
2139	int active = ((W)w)->active;	2360	int active = ((W)w)->active;
…		…
2207	ev_timer_set (&once->to, timeout, 0.);	2428	ev_timer_set (&once->to, timeout, 0.);
2208	ev_timer_start (EV_A_ &once->to);	2429	ev_timer_start (EV_A_ &once->to);
2209	}	2430	}
2210	}	2431	}
2211		2432
		2433	#if EV_MULTIPLICITY
		2434	#include "ev_wrap.h"
		2435	#endif
		2436
2212	#ifdef __cplusplus	2437	#ifdef __cplusplus
2213	}	2438	}
2214	#endif	2439	#endif
2215		2440

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Comparing libev/ev.c (file contents): Revision 1.162 by root, Mon Dec 3 13:41:24 2007 UTC vs. Revision 1.197 by root, Sat Dec 22 15:20:13 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.162 by root, Mon Dec 3 13:41:24 2007 UTC vs.
Revision 1.197 by root, Sat Dec 22 15:20:13 2007 UTC