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

Comparing libev/ev.c (file contents):
Revision 1.158 by root, Thu Nov 29 17:28:13 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	{
888	return backend;	989	return backend;
		990	}
		991
		992	unsigned int
		993	ev_loop_count (EV_P)
		994	{
		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;
889	}	1008	}
890		1009
891	static void noinline	1010	static void noinline
892	loop_init (EV_P_ unsigned int flags)	1011	loop_init (EV_P_ unsigned int flags)
893	{	1012	{
…		…
904	ev_rt_now = ev_time ();	1023	ev_rt_now = ev_time ();
905	mn_now = get_clock ();	1024	mn_now = get_clock ();
906	now_floor = mn_now;	1025	now_floor = mn_now;
907	rtmn_diff = ev_rt_now - mn_now;	1026	rtmn_diff = ev_rt_now - mn_now;
908		1027
		1028	io_blocktime = 0.;
		1029	timeout_blocktime = 0.;
		1030
909	/* pid check not overridable via env */	1031	/* pid check not overridable via env */
910	#ifndef _WIN32	1032	#ifndef _WIN32
911	if (flags & EVFLAG_FORKCHECK)	1033	if (flags & EVFLAG_FORKCHECK)
912	curpid = getpid ();	1034	curpid = getpid ();
913	#endif	1035	#endif
…		…
975	#if EV_USE_SELECT	1097	#if EV_USE_SELECT
976	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1098	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
977	#endif	1099	#endif
978		1100
979	for (i = NUMPRI; i--; )	1101	for (i = NUMPRI; i--; )
		1102	{
980	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;
981		1110
982	/* have to use the microsoft-never-gets-it-right macro */	1111	/* have to use the microsoft-never-gets-it-right macro */
983	array_free (fdchange, EMPTY0);	1112	array_free (fdchange, EMPTY);
984	array_free (timer, EMPTY0);	1113	array_free (timer, EMPTY);
985	#if EV_PERIODIC_ENABLE	1114	#if EV_PERIODIC_ENABLE
986	array_free (periodic, EMPTY0);	1115	array_free (periodic, EMPTY);
987	#endif	1116	#endif
		1117	#if EV_FORK_ENABLE
988	array_free (idle, EMPTY0);	1118	array_free (fork, EMPTY);
		1119	#endif
989	array_free (prepare, EMPTY0);	1120	array_free (prepare, EMPTY);
990	array_free (check, EMPTY0);	1121	array_free (check, EMPTY);
991		1122
992	backend = 0;	1123	backend = 0;
993	}	1124	}
994		1125
995	void inline_size infy_fork (EV_P);	1126	void inline_size infy_fork (EV_P);
…		…
1131	postfork = 1;	1262	postfork = 1;
1132	}	1263	}
1133		1264
1134	/*****************************************************************************/	1265	/*****************************************************************************/
1135		1266
1136	int inline_size	1267	void
1137	any_pending (EV_P)	1268	ev_invoke (EV_P_ void *w, int revents)
1138	{	1269	{
1139	int pri;	1270	EV_CB_INVOKE ((W)w, revents);
1140
1141	for (pri = NUMPRI; pri--; )
1142	if (pendingcnt [pri])
1143	return 1;
1144
1145	return 0;
1146	}	1271	}
1147		1272
1148	void inline_speed	1273	void inline_speed
1149	call_pending (EV_P)	1274	call_pending (EV_P)
1150	{	1275	{
…		…
1168	void inline_size	1293	void inline_size
1169	timers_reify (EV_P)	1294	timers_reify (EV_P)
1170	{	1295	{
1171	while (timercnt && ((WT)timers [0])->at <= mn_now)	1296	while (timercnt && ((WT)timers [0])->at <= mn_now)
1172	{	1297	{
1173	ev_timer *w = timers [0];	1298	ev_timer w = (ev_timer )timers [0];
1174		1299
1175	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1300	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1176		1301
1177	/* first reschedule or stop timer */	1302	/* first reschedule or stop timer */
1178	if (w->repeat)	1303	if (w->repeat)
…		…
1181		1306
1182	((WT)w)->at += w->repeat;	1307	((WT)w)->at += w->repeat;
1183	if (((WT)w)->at < mn_now)	1308	if (((WT)w)->at < mn_now)
1184	((WT)w)->at = mn_now;	1309	((WT)w)->at = mn_now;
1185		1310
1186	downheap ((WT *)timers, timercnt, 0);	1311	downheap (timers, timercnt, 0);
1187	}	1312	}
1188	else	1313	else
1189	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1314	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1190		1315
1191	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1316	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1196	void inline_size	1321	void inline_size
1197	periodics_reify (EV_P)	1322	periodics_reify (EV_P)
1198	{	1323	{
1199	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1324	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1200	{	1325	{
1201	ev_periodic *w = periodics [0];	1326	ev_periodic w = (ev_periodic )periodics [0];
1202		1327
1203	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1328	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1204		1329
1205	/* first reschedule or stop timer */	1330	/* first reschedule or stop timer */
1206	if (w->reschedule_cb)	1331	if (w->reschedule_cb)
1207	{	1332	{
1208	((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);
1209	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));
1210	downheap ((WT *)periodics, periodiccnt, 0);	1335	downheap (periodics, periodiccnt, 0);
1211	}	1336	}
1212	else if (w->interval)	1337	else if (w->interval)
1213	{	1338	{
1214	((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;
1215	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));
1216	downheap ((WT *)periodics, periodiccnt, 0);	1342	downheap (periodics, periodiccnt, 0);
1217	}	1343	}
1218	else	1344	else
1219	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1345	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1220		1346
1221	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1347	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1228	int i;	1354	int i;
1229		1355
1230	/* adjust periodics after time jump */	1356	/* adjust periodics after time jump */
1231	for (i = 0; i < periodiccnt; ++i)	1357	for (i = 0; i < periodiccnt; ++i)
1232	{	1358	{
1233	ev_periodic *w = periodics [i];	1359	ev_periodic w = (ev_periodic )periodics [i];
1234		1360
1235	if (w->reschedule_cb)	1361	if (w->reschedule_cb)
1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1362	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1237	else if (w->interval)	1363	else if (w->interval)
1238	((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;
1239	}	1365	}
1240		1366
1241	/* now rebuild the heap */	1367	/* now rebuild the heap */
1242	for (i = periodiccnt >> 1; i--; )	1368	for (i = periodiccnt >> 1; i--; )
1243	downheap ((WT *)periodics, periodiccnt, i);	1369	downheap (periodics, periodiccnt, i);
1244	}	1370	}
1245	#endif	1371	#endif
1246		1372
		1373	#if EV_IDLE_ENABLE
1247	int inline_size	1374	void inline_size
1248	time_update_monotonic (EV_P)	1375	idle_reify (EV_P)
1249	{	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
1250	mn_now = get_clock ();	1406	mn_now = get_clock ();
1251		1407
		1408	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1409	/* interpolate in the meantime */
1252	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1410	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1253	{	1411	{
1254	ev_rt_now = rtmn_diff + mn_now;	1412	ev_rt_now = rtmn_diff + mn_now;
1255	return 0;	1413	return;
1256	}	1414	}
1257	else	1415
1258	{
1259	now_floor = mn_now;	1416	now_floor = mn_now;
1260	ev_rt_now = ev_time ();	1417	ev_rt_now = ev_time ();
1261	return 1;
1262	}
1263	}
1264		1418
1265	void inline_size	1419	/* loop a few times, before making important decisions.
1266	time_update (EV_P)	1420	* on the choice of "4": one iteration isn't enough,
1267	{	1421	* in case we get preempted during the calls to
1268	int i;	1422	* ev_time and get_clock. a second call is almost guaranteed
1269		1423	* to succeed in that case, though. and looping a few more times
1270	#if EV_USE_MONOTONIC	1424	* doesn't hurt either as we only do this on time-jumps or
1271	if (expect_true (have_monotonic))	1425	* in the unlikely event of having been preempted here.
1272	{	1426	*/
1273	if (time_update_monotonic (EV_A))	1427	for (i = 4; --i; )
1274	{	1428	{
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;	1429	rtmn_diff = ev_rt_now - mn_now;
1288		1430
1289	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1431	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1290	return; /* all is well */	1432	return; /* all is well */
1291		1433
1292	ev_rt_now = ev_time ();	1434	ev_rt_now = ev_time ();
1293	mn_now = get_clock ();	1435	mn_now = get_clock ();
1294	now_floor = mn_now;	1436	now_floor = mn_now;
1295	}	1437	}
1296		1438
1297	# if EV_PERIODIC_ENABLE	1439	# if EV_PERIODIC_ENABLE
1298	periodics_reschedule (EV_A);	1440	periodics_reschedule (EV_A);
1299	# endif	1441	# endif
1300	/* no timer adjustment, as the monotonic clock doesn't jump */	1442	/* no timer adjustment, as the monotonic clock doesn't jump */
1301	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1443	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1302	}
1303	}	1444	}
1304	else	1445	else
1305	#endif	1446	#endif
1306	{	1447	{
1307	ev_rt_now = ev_time ();	1448	ev_rt_now = ev_time ();
1308		1449
1309	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))
1310	{	1451	{
1311	#if EV_PERIODIC_ENABLE	1452	#if EV_PERIODIC_ENABLE
1312	periodics_reschedule (EV_A);	1453	periodics_reschedule (EV_A);
1313	#endif	1454	#endif
1314
1315	/* 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 */
1316	for (i = 0; i < timercnt; ++i)	1456	for (i = 0; i < timercnt; ++i)
1317	((WT)timers [i])->at += ev_rt_now - mn_now;	1457	((WT)timers [i])->at += ev_rt_now - mn_now;
1318	}	1458	}
1319		1459
…		…
1342	? EVUNLOOP_ONE	1482	? EVUNLOOP_ONE
1343	: EVUNLOOP_CANCEL;	1483	: EVUNLOOP_CANCEL;
1344		1484
1345	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1485	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1346		1486
1347	while (activecnt)	1487	do
1348	{	1488	{
1349	#ifndef _WIN32	1489	#ifndef _WIN32
1350	if (expect_false (curpid)) /* penalise the forking check even more */	1490	if (expect_false (curpid)) /* penalise the forking check even more */
1351	if (expect_false (getpid () != curpid))	1491	if (expect_false (getpid () != curpid))
1352	{	1492	{
…		…
1363	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1503	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1364	call_pending (EV_A);	1504	call_pending (EV_A);
1365	}	1505	}
1366	#endif	1506	#endif
1367		1507
1368	/* queue check watchers (and execute them) */	1508	/* queue prepare watchers (and execute them) */
1369	if (expect_false (preparecnt))	1509	if (expect_false (preparecnt))
1370	{	1510	{
1371	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1511	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1372	call_pending (EV_A);	1512	call_pending (EV_A);
1373	}	1513	}
1374		1514
		1515	if (expect_false (!activecnt))
		1516	break;
		1517
1375	/* we might have forked, so reify kernel state if necessary */	1518	/* we might have forked, so reify kernel state if necessary */
1376	if (expect_false (postfork))	1519	if (expect_false (postfork))
1377	loop_fork (EV_A);	1520	loop_fork (EV_A);
1378		1521
1379	/* update fd-related kernel structures */	1522	/* update fd-related kernel structures */
1380	fd_reify (EV_A);	1523	fd_reify (EV_A);
1381		1524
1382	/* calculate blocking time */	1525	/* calculate blocking time */
1383	{	1526	{
1384	ev_tstamp block;	1527	ev_tstamp waittime = 0.;
		1528	ev_tstamp sleeptime = 0.;
1385		1529
1386	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1530	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1387	block = 0.; /* do not block at all */
1388	else
1389	{	1531	{
1390	/* update time to cancel out callback processing overhead */	1532	/* update time to cancel out callback processing overhead */
1391	#if EV_USE_MONOTONIC
1392	if (expect_true (have_monotonic))
1393	time_update_monotonic (EV_A);	1533	time_update (EV_A_ 1e100);
1394	else
1395	#endif
1396	{
1397	ev_rt_now = ev_time ();
1398	mn_now = ev_rt_now;
1399	}
1400		1534
1401	block = MAX_BLOCKTIME;	1535	waittime = MAX_BLOCKTIME;
1402		1536
1403	if (timercnt)	1537	if (timercnt)
1404	{	1538	{
1405	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1539	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1406	if (block > to) block = to;	1540	if (waittime > to) waittime = to;
1407	}	1541	}
1408		1542
1409	#if EV_PERIODIC_ENABLE	1543	#if EV_PERIODIC_ENABLE
1410	if (periodiccnt)	1544	if (periodiccnt)
1411	{	1545	{
1412	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;
1413	if (block > to) block = to;	1547	if (waittime > to) waittime = to;
1414	}	1548	}
1415	#endif	1549	#endif
1416		1550
1417	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	}
1418	}	1564	}
1419		1565
		1566	++loop_count;
1420	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);
1421	}	1571	}
1422
1423	/* update ev_rt_now, do magic */
1424	time_update (EV_A);
1425		1572
1426	/* queue pending timers and reschedule them */	1573	/* queue pending timers and reschedule them */
1427	timers_reify (EV_A); /* relative timers called last */	1574	timers_reify (EV_A); /* relative timers called last */
1428	#if EV_PERIODIC_ENABLE	1575	#if EV_PERIODIC_ENABLE
1429	periodics_reify (EV_A); /* absolute timers called first */	1576	periodics_reify (EV_A); /* absolute timers called first */
1430	#endif	1577	#endif
1431		1578
		1579	#if EV_IDLE_ENABLE
1432	/* queue idle watchers unless other events are pending */	1580	/* queue idle watchers unless other events are pending */
1433	if (idlecnt && !any_pending (EV_A))	1581	idle_reify (EV_A);
1434	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1582	#endif
1435		1583
1436	/* queue check watchers, to be executed first */	1584	/* queue check watchers, to be executed first */
1437	if (expect_false (checkcnt))	1585	if (expect_false (checkcnt))
1438	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1586	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1439		1587
1440	call_pending (EV_A);	1588	call_pending (EV_A);
1441		1589
1442	if (expect_false (loop_done))
1443	break;
1444	}	1590	}
		1591	while (expect_true (activecnt && !loop_done));
1445		1592
1446	if (loop_done == EVUNLOOP_ONE)	1593	if (loop_done == EVUNLOOP_ONE)
1447	loop_done = EVUNLOOP_CANCEL;	1594	loop_done = EVUNLOOP_CANCEL;
1448	}	1595	}
1449		1596
…		…
1476	head = &(*head)->next;	1623	head = &(*head)->next;
1477	}	1624	}
1478	}	1625	}
1479		1626
1480	void inline_speed	1627	void inline_speed
1481	ev_clear_pending (EV_P_ W w)	1628	clear_pending (EV_P_ W w)
1482	{	1629	{
1483	if (w->pending)	1630	if (w->pending)
1484	{	1631	{
1485	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1632	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1486	w->pending = 0;	1633	w->pending = 0;
1487	}	1634	}
1488	}	1635	}
1489		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
1490	void inline_speed	1663	void inline_speed
1491	ev_start (EV_P_ W w, int active)	1664	ev_start (EV_P_ W w, int active)
1492	{	1665	{
1493	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1666	pri_adjust (EV_A_ w);
1494	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1495
1496	w->active = active;	1667	w->active = active;
1497	ev_ref (EV_A);	1668	ev_ref (EV_A);
1498	}	1669	}
1499		1670
1500	void inline_size	1671	void inline_size
…		…
1504	w->active = 0;	1675	w->active = 0;
1505	}	1676	}
1506		1677
1507	/*****************************************************************************/	1678	/*****************************************************************************/
1508		1679
1509	void	1680	void noinline
1510	ev_io_start (EV_P_ ev_io *w)	1681	ev_io_start (EV_P_ ev_io *w)
1511	{	1682	{
1512	int fd = w->fd;	1683	int fd = w->fd;
1513		1684
1514	if (expect_false (ev_is_active (w)))	1685	if (expect_false (ev_is_active (w)))
…		…
1516		1687
1517	assert (("ev_io_start called with negative fd", fd >= 0));	1688	assert (("ev_io_start called with negative fd", fd >= 0));
1518		1689
1519	ev_start (EV_A_ (W)w, 1);	1690	ev_start (EV_A_ (W)w, 1);
1520	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1691	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1521	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1692	wlist_add (&anfds[fd].head, (WL)w);
1522		1693
1523	fd_change (EV_A_ fd);	1694	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1695	w->events &= ~EV_IOFDSET;
1524	}	1696	}
1525		1697
1526	void	1698	void noinline
1527	ev_io_stop (EV_P_ ev_io *w)	1699	ev_io_stop (EV_P_ ev_io *w)
1528	{	1700	{
1529	ev_clear_pending (EV_A_ (W)w);	1701	clear_pending (EV_A_ (W)w);
1530	if (expect_false (!ev_is_active (w)))	1702	if (expect_false (!ev_is_active (w)))
1531	return;	1703	return;
1532		1704
1533	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));
1534		1706
1535	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1707	wlist_del (&anfds[w->fd].head, (WL)w);
1536	ev_stop (EV_A_ (W)w);	1708	ev_stop (EV_A_ (W)w);
1537		1709
1538	fd_change (EV_A_ w->fd);	1710	fd_change (EV_A_ w->fd, 1);
1539	}	1711	}
1540		1712
1541	void	1713	void noinline
1542	ev_timer_start (EV_P_ ev_timer *w)	1714	ev_timer_start (EV_P_ ev_timer *w)
1543	{	1715	{
1544	if (expect_false (ev_is_active (w)))	1716	if (expect_false (ev_is_active (w)))
1545	return;	1717	return;
1546		1718
1547	((WT)w)->at += mn_now;	1719	((WT)w)->at += mn_now;
1548		1720
1549	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.));
1550		1722
1551	ev_start (EV_A_ (W)w, ++timercnt);	1723	ev_start (EV_A_ (W)w, ++timercnt);
1552	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1724	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1553	timers [timercnt - 1] = w;	1725	timers [timercnt - 1] = (WT)w;
1554	upheap ((WT *)timers, timercnt - 1);	1726	upheap (timers, timercnt - 1);
1555		1727
1556	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1728	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1557	}	1729	}
1558		1730
1559	void	1731	void noinline
1560	ev_timer_stop (EV_P_ ev_timer *w)	1732	ev_timer_stop (EV_P_ ev_timer *w)
1561	{	1733	{
1562	ev_clear_pending (EV_A_ (W)w);	1734	clear_pending (EV_A_ (W)w);
1563	if (expect_false (!ev_is_active (w)))	1735	if (expect_false (!ev_is_active (w)))
1564	return;	1736	return;
1565		1737
1566	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1738	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1567		1739
1568	{	1740	{
1569	int active = ((W)w)->active;	1741	int active = ((W)w)->active;
1570		1742
1571	if (expect_true (--active < --timercnt))	1743	if (expect_true (--active < --timercnt))
1572	{	1744	{
1573	timers [active] = timers [timercnt];	1745	timers [active] = timers [timercnt];
1574	adjustheap ((WT *)timers, timercnt, active);	1746	adjustheap (timers, timercnt, active);
1575	}	1747	}
1576	}	1748	}
1577		1749
1578	((WT)w)->at -= mn_now;	1750	((WT)w)->at -= mn_now;
1579		1751
1580	ev_stop (EV_A_ (W)w);	1752	ev_stop (EV_A_ (W)w);
1581	}	1753	}
1582		1754
1583	void	1755	void noinline
1584	ev_timer_again (EV_P_ ev_timer *w)	1756	ev_timer_again (EV_P_ ev_timer *w)
1585	{	1757	{
1586	if (ev_is_active (w))	1758	if (ev_is_active (w))
1587	{	1759	{
1588	if (w->repeat)	1760	if (w->repeat)
1589	{	1761	{
1590	((WT)w)->at = mn_now + w->repeat;	1762	((WT)w)->at = mn_now + w->repeat;
1591	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1763	adjustheap (timers, timercnt, ((W)w)->active - 1);
1592	}	1764	}
1593	else	1765	else
1594	ev_timer_stop (EV_A_ w);	1766	ev_timer_stop (EV_A_ w);
1595	}	1767	}
1596	else if (w->repeat)	1768	else if (w->repeat)
…		…
1599	ev_timer_start (EV_A_ w);	1771	ev_timer_start (EV_A_ w);
1600	}	1772	}
1601	}	1773	}
1602		1774
1603	#if EV_PERIODIC_ENABLE	1775	#if EV_PERIODIC_ENABLE
1604	void	1776	void noinline
1605	ev_periodic_start (EV_P_ ev_periodic *w)	1777	ev_periodic_start (EV_P_ ev_periodic *w)
1606	{	1778	{
1607	if (expect_false (ev_is_active (w)))	1779	if (expect_false (ev_is_active (w)))
1608	return;	1780	return;
1609		1781
…		…
1611	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1783	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1612	else if (w->interval)	1784	else if (w->interval)
1613	{	1785	{
1614	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.));
1615	/* 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 */
1616	((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;
1617	}	1789	}
		1790	else
		1791	((WT)w)->at = w->offset;
1618		1792
1619	ev_start (EV_A_ (W)w, ++periodiccnt);	1793	ev_start (EV_A_ (W)w, ++periodiccnt);
1620	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1794	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1621	periodics [periodiccnt - 1] = w;	1795	periodics [periodiccnt - 1] = (WT)w;
1622	upheap ((WT *)periodics, periodiccnt - 1);	1796	upheap (periodics, periodiccnt - 1);
1623		1797
1624	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1798	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1625	}	1799	}
1626		1800
1627	void	1801	void noinline
1628	ev_periodic_stop (EV_P_ ev_periodic *w)	1802	ev_periodic_stop (EV_P_ ev_periodic *w)
1629	{	1803	{
1630	ev_clear_pending (EV_A_ (W)w);	1804	clear_pending (EV_A_ (W)w);
1631	if (expect_false (!ev_is_active (w)))	1805	if (expect_false (!ev_is_active (w)))
1632	return;	1806	return;
1633		1807
1634	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1808	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1635		1809
1636	{	1810	{
1637	int active = ((W)w)->active;	1811	int active = ((W)w)->active;
1638		1812
1639	if (expect_true (--active < --periodiccnt))	1813	if (expect_true (--active < --periodiccnt))
1640	{	1814	{
1641	periodics [active] = periodics [periodiccnt];	1815	periodics [active] = periodics [periodiccnt];
1642	adjustheap ((WT *)periodics, periodiccnt, active);	1816	adjustheap (periodics, periodiccnt, active);
1643	}	1817	}
1644	}	1818	}
1645		1819
1646	ev_stop (EV_A_ (W)w);	1820	ev_stop (EV_A_ (W)w);
1647	}	1821	}
1648		1822
1649	void	1823	void noinline
1650	ev_periodic_again (EV_P_ ev_periodic *w)	1824	ev_periodic_again (EV_P_ ev_periodic *w)
1651	{	1825	{
1652	/* TODO: use adjustheap and recalculation */	1826	/* TODO: use adjustheap and recalculation */
1653	ev_periodic_stop (EV_A_ w);	1827	ev_periodic_stop (EV_A_ w);
1654	ev_periodic_start (EV_A_ w);	1828	ev_periodic_start (EV_A_ w);
…		…
1657		1831
1658	#ifndef SA_RESTART	1832	#ifndef SA_RESTART
1659	# define SA_RESTART 0	1833	# define SA_RESTART 0
1660	#endif	1834	#endif
1661		1835
1662	void	1836	void noinline
1663	ev_signal_start (EV_P_ ev_signal *w)	1837	ev_signal_start (EV_P_ ev_signal *w)
1664	{	1838	{
1665	#if EV_MULTIPLICITY	1839	#if EV_MULTIPLICITY
1666	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));
1667	#endif	1841	#endif
1668	if (expect_false (ev_is_active (w)))	1842	if (expect_false (ev_is_active (w)))
1669	return;	1843	return;
1670		1844
1671	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));
1672		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
1673	ev_start (EV_A_ (W)w, 1);	1861	ev_start (EV_A_ (W)w, 1);
1674	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1675	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1862	wlist_add (&signals [w->signum - 1].head, (WL)w);
1676		1863
1677	if (!((WL)w)->next)	1864	if (!((WL)w)->next)
1678	{	1865	{
1679	#if _WIN32	1866	#if _WIN32
1680	signal (w->signum, sighandler);	1867	signal (w->signum, sighandler);
…		…
1686	sigaction (w->signum, &sa, 0);	1873	sigaction (w->signum, &sa, 0);
1687	#endif	1874	#endif
1688	}	1875	}
1689	}	1876	}
1690		1877
1691	void	1878	void noinline
1692	ev_signal_stop (EV_P_ ev_signal *w)	1879	ev_signal_stop (EV_P_ ev_signal *w)
1693	{	1880	{
1694	ev_clear_pending (EV_A_ (W)w);	1881	clear_pending (EV_A_ (W)w);
1695	if (expect_false (!ev_is_active (w)))	1882	if (expect_false (!ev_is_active (w)))
1696	return;	1883	return;
1697		1884
1698	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1885	wlist_del (&signals [w->signum - 1].head, (WL)w);
1699	ev_stop (EV_A_ (W)w);	1886	ev_stop (EV_A_ (W)w);
1700		1887
1701	if (!signals [w->signum - 1].head)	1888	if (!signals [w->signum - 1].head)
1702	signal (w->signum, SIG_DFL);	1889	signal (w->signum, SIG_DFL);
1703	}	1890	}
…		…
1710	#endif	1897	#endif
1711	if (expect_false (ev_is_active (w)))	1898	if (expect_false (ev_is_active (w)))
1712	return;	1899	return;
1713		1900
1714	ev_start (EV_A_ (W)w, 1);	1901	ev_start (EV_A_ (W)w, 1);
1715	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1902	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1716	}	1903	}
1717		1904
1718	void	1905	void
1719	ev_child_stop (EV_P_ ev_child *w)	1906	ev_child_stop (EV_P_ ev_child *w)
1720	{	1907	{
1721	ev_clear_pending (EV_A_ (W)w);	1908	clear_pending (EV_A_ (W)w);
1722	if (expect_false (!ev_is_active (w)))	1909	if (expect_false (!ev_is_active (w)))
1723	return;	1910	return;
1724		1911
1725	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1912	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1726	ev_stop (EV_A_ (W)w);	1913	ev_stop (EV_A_ (W)w);
1727	}	1914	}
1728		1915
1729	#if EV_STAT_ENABLE	1916	#if EV_STAT_ENABLE
1730		1917
…		…
1962	}	2149	}
1963		2150
1964	void	2151	void
1965	ev_stat_stop (EV_P_ ev_stat *w)	2152	ev_stat_stop (EV_P_ ev_stat *w)
1966	{	2153	{
1967	ev_clear_pending (EV_A_ (W)w);	2154	clear_pending (EV_A_ (W)w);
1968	if (expect_false (!ev_is_active (w)))	2155	if (expect_false (!ev_is_active (w)))
1969	return;	2156	return;
1970		2157
1971	#if EV_USE_INOTIFY	2158	#if EV_USE_INOTIFY
1972	infy_del (EV_A_ w);	2159	infy_del (EV_A_ w);
…		…
1975		2162
1976	ev_stop (EV_A_ (W)w);	2163	ev_stop (EV_A_ (W)w);
1977	}	2164	}
1978	#endif	2165	#endif
1979		2166
		2167	#if EV_IDLE_ENABLE
1980	void	2168	void
1981	ev_idle_start (EV_P_ ev_idle *w)	2169	ev_idle_start (EV_P_ ev_idle *w)
1982	{	2170	{
1983	if (expect_false (ev_is_active (w)))	2171	if (expect_false (ev_is_active (w)))
1984	return;	2172	return;
1985		2173
		2174	pri_adjust (EV_A_ (W)w);
		2175
		2176	{
		2177	int active = ++idlecnt [ABSPRI (w)];
		2178
		2179	++idleall;
1986	ev_start (EV_A_ (W)w, ++idlecnt);	2180	ev_start (EV_A_ (W)w, active);
		2181
1987	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2182	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1988	idles [idlecnt - 1] = w;	2183	idles [ABSPRI (w)][active - 1] = w;
		2184	}
1989	}	2185	}
1990		2186
1991	void	2187	void
1992	ev_idle_stop (EV_P_ ev_idle *w)	2188	ev_idle_stop (EV_P_ ev_idle *w)
1993	{	2189	{
1994	ev_clear_pending (EV_A_ (W)w);	2190	clear_pending (EV_A_ (W)w);
1995	if (expect_false (!ev_is_active (w)))	2191	if (expect_false (!ev_is_active (w)))
1996	return;	2192	return;
1997		2193
1998	{	2194	{
1999	int active = ((W)w)->active;	2195	int active = ((W)w)->active;
2000	idles [active - 1] = idles [--idlecnt];	2196
		2197	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2001	((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;
2002	}	2202	}
2003
2004	ev_stop (EV_A_ (W)w);
2005	}	2203	}
		2204	#endif
2006		2205
2007	void	2206	void
2008	ev_prepare_start (EV_P_ ev_prepare *w)	2207	ev_prepare_start (EV_P_ ev_prepare *w)
2009	{	2208	{
2010	if (expect_false (ev_is_active (w)))	2209	if (expect_false (ev_is_active (w)))
…		…
2016	}	2215	}
2017		2216
2018	void	2217	void
2019	ev_prepare_stop (EV_P_ ev_prepare *w)	2218	ev_prepare_stop (EV_P_ ev_prepare *w)
2020	{	2219	{
2021	ev_clear_pending (EV_A_ (W)w);	2220	clear_pending (EV_A_ (W)w);
2022	if (expect_false (!ev_is_active (w)))	2221	if (expect_false (!ev_is_active (w)))
2023	return;	2222	return;
2024		2223
2025	{	2224	{
2026	int active = ((W)w)->active;	2225	int active = ((W)w)->active;
…		…
2043	}	2242	}
2044		2243
2045	void	2244	void
2046	ev_check_stop (EV_P_ ev_check *w)	2245	ev_check_stop (EV_P_ ev_check *w)
2047	{	2246	{
2048	ev_clear_pending (EV_A_ (W)w);	2247	clear_pending (EV_A_ (W)w);
2049	if (expect_false (!ev_is_active (w)))	2248	if (expect_false (!ev_is_active (w)))
2050	return;	2249	return;
2051		2250
2052	{	2251	{
2053	int active = ((W)w)->active;	2252	int active = ((W)w)->active;
…		…
2060		2259
2061	#if EV_EMBED_ENABLE	2260	#if EV_EMBED_ENABLE
2062	void noinline	2261	void noinline
2063	ev_embed_sweep (EV_P_ ev_embed *w)	2262	ev_embed_sweep (EV_P_ ev_embed *w)
2064	{	2263	{
2065	ev_loop (w->loop, EVLOOP_NONBLOCK);	2264	ev_loop (w->other, EVLOOP_NONBLOCK);
2066	}	2265	}
2067		2266
2068	static void	2267	static void
2069	embed_cb (EV_P_ ev_io *io, int revents)	2268	embed_io_cb (EV_P_ ev_io *io, int revents)
2070	{	2269	{
2071	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2270	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2072		2271
2073	if (ev_cb (w))	2272	if (ev_cb (w))
2074	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2273	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2075	else	2274	else
2076	ev_embed_sweep (loop, w);	2275	ev_loop (w->other, EVLOOP_NONBLOCK);
2077	}	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
2078		2301
2079	void	2302	void
2080	ev_embed_start (EV_P_ ev_embed *w)	2303	ev_embed_start (EV_P_ ev_embed *w)
2081	{	2304	{
2082	if (expect_false (ev_is_active (w)))	2305	if (expect_false (ev_is_active (w)))
2083	return;	2306	return;
2084		2307
2085	{	2308	{
2086	struct ev_loop *loop = w->loop;	2309	struct ev_loop *loop = w->other;
2087	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 ()));
2088	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2311	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2089	}	2312	}
2090		2313
2091	ev_set_priority (&w->io, ev_priority (w));	2314	ev_set_priority (&w->io, ev_priority (w));
2092	ev_io_start (EV_A_ &w->io);	2315	ev_io_start (EV_A_ &w->io);
2093		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
2094	ev_start (EV_A_ (W)w, 1);	2323	ev_start (EV_A_ (W)w, 1);
2095	}	2324	}
2096		2325
2097	void	2326	void
2098	ev_embed_stop (EV_P_ ev_embed *w)	2327	ev_embed_stop (EV_P_ ev_embed *w)
2099	{	2328	{
2100	ev_clear_pending (EV_A_ (W)w);	2329	clear_pending (EV_A_ (W)w);
2101	if (expect_false (!ev_is_active (w)))	2330	if (expect_false (!ev_is_active (w)))
2102	return;	2331	return;
2103		2332
2104	ev_io_stop (EV_A_ &w->io);	2333	ev_io_stop (EV_A_ &w->io);
		2334	ev_prepare_stop (EV_A_ &w->prepare);
2105		2335
2106	ev_stop (EV_A_ (W)w);	2336	ev_stop (EV_A_ (W)w);
2107	}	2337	}
2108	#endif	2338	#endif
2109		2339
…		…
2120	}	2350	}
2121		2351
2122	void	2352	void
2123	ev_fork_stop (EV_P_ ev_fork *w)	2353	ev_fork_stop (EV_P_ ev_fork *w)
2124	{	2354	{
2125	ev_clear_pending (EV_A_ (W)w);	2355	clear_pending (EV_A_ (W)w);
2126	if (expect_false (!ev_is_active (w)))	2356	if (expect_false (!ev_is_active (w)))
2127	return;	2357	return;
2128		2358
2129	{	2359	{
2130	int active = ((W)w)->active;	2360	int active = ((W)w)->active;
…		…
2198	ev_timer_set (&once->to, timeout, 0.);	2428	ev_timer_set (&once->to, timeout, 0.);
2199	ev_timer_start (EV_A_ &once->to);	2429	ev_timer_start (EV_A_ &once->to);
2200	}	2430	}
2201	}	2431	}
2202		2432
		2433	#if EV_MULTIPLICITY
		2434	#include "ev_wrap.h"
		2435	#endif
		2436
2203	#ifdef __cplusplus	2437	#ifdef __cplusplus
2204	}	2438	}
2205	#endif	2439	#endif
2206		2440

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Comparing libev/ev.c (file contents): Revision 1.158 by root, Thu Nov 29 17:28:13 2007 UTC vs. Revision 1.197 by root, Sat Dec 22 15:20:13 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.158 by root, Thu Nov 29 17:28:13 2007 UTC vs.
Revision 1.197 by root, Sat Dec 22 15:20:13 2007 UTC