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

Comparing libev/ev.c (file contents):
Revision 1.159 by root, Sat Dec 1 19:48:36 2007 UTC vs.
Revision 1.196 by root, Sat Dec 22 12:43:28 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	#ifdef __APPLE__
		984	/* is there anything thats not broken on darwin? */
		985	flags &= ~EVBACKEND_KQUEUE;
		986	#endif
		987
		988	return flags;
883	}	989	}
884		990
885	unsigned int	991	unsigned int
886	ev_backend (EV_P)	992	ev_backend (EV_P)
887	{	993	{
888	return backend;	994	return backend;
		995	}
		996
		997	unsigned int
		998	ev_loop_count (EV_P)
		999	{
		1000	return loop_count;
		1001	}
		1002
		1003	void
		1004	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1005	{
		1006	io_blocktime = interval;
		1007	}
		1008
		1009	void
		1010	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1011	{
		1012	timeout_blocktime = interval;
889	}	1013	}
890		1014
891	static void noinline	1015	static void noinline
892	loop_init (EV_P_ unsigned int flags)	1016	loop_init (EV_P_ unsigned int flags)
893	{	1017	{
…		…
904	ev_rt_now = ev_time ();	1028	ev_rt_now = ev_time ();
905	mn_now = get_clock ();	1029	mn_now = get_clock ();
906	now_floor = mn_now;	1030	now_floor = mn_now;
907	rtmn_diff = ev_rt_now - mn_now;	1031	rtmn_diff = ev_rt_now - mn_now;
908		1032
		1033	io_blocktime = 0.;
		1034	timeout_blocktime = 0.;
		1035
909	/* pid check not overridable via env */	1036	/* pid check not overridable via env */
910	#ifndef _WIN32	1037	#ifndef _WIN32
911	if (flags & EVFLAG_FORKCHECK)	1038	if (flags & EVFLAG_FORKCHECK)
912	curpid = getpid ();	1039	curpid = getpid ();
913	#endif	1040	#endif
…		…
975	#if EV_USE_SELECT	1102	#if EV_USE_SELECT
976	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1103	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
977	#endif	1104	#endif
978		1105
979	for (i = NUMPRI; i--; )	1106	for (i = NUMPRI; i--; )
		1107	{
980	array_free (pending, [i]);	1108	array_free (pending, [i]);
		1109	#if EV_IDLE_ENABLE
		1110	array_free (idle, [i]);
		1111	#endif
		1112	}
		1113
		1114	ev_free (anfds); anfdmax = 0;
981		1115
982	/* have to use the microsoft-never-gets-it-right macro */	1116	/* have to use the microsoft-never-gets-it-right macro */
983	array_free (fdchange, EMPTY0);	1117	array_free (fdchange, EMPTY);
984	array_free (timer, EMPTY0);	1118	array_free (timer, EMPTY);
985	#if EV_PERIODIC_ENABLE	1119	#if EV_PERIODIC_ENABLE
986	array_free (periodic, EMPTY0);	1120	array_free (periodic, EMPTY);
987	#endif	1121	#endif
		1122	#if EV_FORK_ENABLE
988	array_free (idle, EMPTY0);	1123	array_free (fork, EMPTY);
		1124	#endif
989	array_free (prepare, EMPTY0);	1125	array_free (prepare, EMPTY);
990	array_free (check, EMPTY0);	1126	array_free (check, EMPTY);
991		1127
992	backend = 0;	1128	backend = 0;
993	}	1129	}
994		1130
995	void inline_size infy_fork (EV_P);	1131	void inline_size infy_fork (EV_P);
…		…
1131	postfork = 1;	1267	postfork = 1;
1132	}	1268	}
1133		1269
1134	/*****************************************************************************/	1270	/*****************************************************************************/
1135		1271
1136	int inline_size	1272	void
1137	any_pending (EV_P)	1273	ev_invoke (EV_P_ void *w, int revents)
1138	{	1274	{
1139	int pri;	1275	EV_CB_INVOKE ((W)w, revents);
1140
1141	for (pri = NUMPRI; pri--; )
1142	if (pendingcnt [pri])
1143	return 1;
1144
1145	return 0;
1146	}	1276	}
1147		1277
1148	void inline_speed	1278	void inline_speed
1149	call_pending (EV_P)	1279	call_pending (EV_P)
1150	{	1280	{
…		…
1168	void inline_size	1298	void inline_size
1169	timers_reify (EV_P)	1299	timers_reify (EV_P)
1170	{	1300	{
1171	while (timercnt && ((WT)timers [0])->at <= mn_now)	1301	while (timercnt && ((WT)timers [0])->at <= mn_now)
1172	{	1302	{
1173	ev_timer *w = timers [0];	1303	ev_timer w = (ev_timer )timers [0];
1174		1304
1175	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1305	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1176		1306
1177	/* first reschedule or stop timer */	1307	/* first reschedule or stop timer */
1178	if (w->repeat)	1308	if (w->repeat)
…		…
1181		1311
1182	((WT)w)->at += w->repeat;	1312	((WT)w)->at += w->repeat;
1183	if (((WT)w)->at < mn_now)	1313	if (((WT)w)->at < mn_now)
1184	((WT)w)->at = mn_now;	1314	((WT)w)->at = mn_now;
1185		1315
1186	downheap ((WT *)timers, timercnt, 0);	1316	downheap (timers, timercnt, 0);
1187	}	1317	}
1188	else	1318	else
1189	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1319	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1190		1320
1191	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1321	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1196	void inline_size	1326	void inline_size
1197	periodics_reify (EV_P)	1327	periodics_reify (EV_P)
1198	{	1328	{
1199	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1329	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1200	{	1330	{
1201	ev_periodic *w = periodics [0];	1331	ev_periodic w = (ev_periodic )periodics [0];
1202		1332
1203	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1333	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1204		1334
1205	/* first reschedule or stop timer */	1335	/* first reschedule or stop timer */
1206	if (w->reschedule_cb)	1336	if (w->reschedule_cb)
1207	{	1337	{
1208	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1338	((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));	1339	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1210	downheap ((WT *)periodics, periodiccnt, 0);	1340	downheap (periodics, periodiccnt, 0);
1211	}	1341	}
1212	else if (w->interval)	1342	else if (w->interval)
1213	{	1343	{
1214	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1344	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1345	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));	1346	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);	1347	downheap (periodics, periodiccnt, 0);
1217	}	1348	}
1218	else	1349	else
1219	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1350	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1220		1351
1221	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1352	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1228	int i;	1359	int i;
1229		1360
1230	/* adjust periodics after time jump */	1361	/* adjust periodics after time jump */
1231	for (i = 0; i < periodiccnt; ++i)	1362	for (i = 0; i < periodiccnt; ++i)
1232	{	1363	{
1233	ev_periodic *w = periodics [i];	1364	ev_periodic w = (ev_periodic )periodics [i];
1234		1365
1235	if (w->reschedule_cb)	1366	if (w->reschedule_cb)
1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1367	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1237	else if (w->interval)	1368	else if (w->interval)
1238	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1369	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1239	}	1370	}
1240		1371
1241	/* now rebuild the heap */	1372	/* now rebuild the heap */
1242	for (i = periodiccnt >> 1; i--; )	1373	for (i = periodiccnt >> 1; i--; )
1243	downheap ((WT *)periodics, periodiccnt, i);	1374	downheap (periodics, periodiccnt, i);
1244	}	1375	}
1245	#endif	1376	#endif
1246		1377
		1378	#if EV_IDLE_ENABLE
1247	int inline_size	1379	void inline_size
1248	time_update_monotonic (EV_P)	1380	idle_reify (EV_P)
1249	{	1381	{
		1382	if (expect_false (idleall))
		1383	{
		1384	int pri;
		1385
		1386	for (pri = NUMPRI; pri--; )
		1387	{
		1388	if (pendingcnt [pri])
		1389	break;
		1390
		1391	if (idlecnt [pri])
		1392	{
		1393	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1394	break;
		1395	}
		1396	}
		1397	}
		1398	}
		1399	#endif
		1400
		1401	void inline_speed
		1402	time_update (EV_P_ ev_tstamp max_block)
		1403	{
		1404	int i;
		1405
		1406	#if EV_USE_MONOTONIC
		1407	if (expect_true (have_monotonic))
		1408	{
		1409	ev_tstamp odiff = rtmn_diff;
		1410
1250	mn_now = get_clock ();	1411	mn_now = get_clock ();
1251		1412
		1413	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1414	/* interpolate in the meantime */
1252	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1415	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1253	{	1416	{
1254	ev_rt_now = rtmn_diff + mn_now;	1417	ev_rt_now = rtmn_diff + mn_now;
1255	return 0;	1418	return;
1256	}	1419	}
1257	else	1420
1258	{
1259	now_floor = mn_now;	1421	now_floor = mn_now;
1260	ev_rt_now = ev_time ();	1422	ev_rt_now = ev_time ();
1261	return 1;
1262	}
1263	}
1264		1423
1265	void inline_size	1424	/* loop a few times, before making important decisions.
1266	time_update (EV_P)	1425	* on the choice of "4": one iteration isn't enough,
1267	{	1426	* in case we get preempted during the calls to
1268	int i;	1427	* ev_time and get_clock. a second call is almost guaranteed
1269		1428	* to succeed in that case, though. and looping a few more times
1270	#if EV_USE_MONOTONIC	1429	* doesn't hurt either as we only do this on time-jumps or
1271	if (expect_true (have_monotonic))	1430	* in the unlikely event of having been preempted here.
1272	{	1431	*/
1273	if (time_update_monotonic (EV_A))	1432	for (i = 4; --i; )
1274	{	1433	{
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;	1434	rtmn_diff = ev_rt_now - mn_now;
1288		1435
1289	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1436	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1290	return; /* all is well */	1437	return; /* all is well */
1291		1438
1292	ev_rt_now = ev_time ();	1439	ev_rt_now = ev_time ();
1293	mn_now = get_clock ();	1440	mn_now = get_clock ();
1294	now_floor = mn_now;	1441	now_floor = mn_now;
1295	}	1442	}
1296		1443
1297	# if EV_PERIODIC_ENABLE	1444	# if EV_PERIODIC_ENABLE
1298	periodics_reschedule (EV_A);	1445	periodics_reschedule (EV_A);
1299	# endif	1446	# endif
1300	/* no timer adjustment, as the monotonic clock doesn't jump */	1447	/* no timer adjustment, as the monotonic clock doesn't jump */
1301	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1448	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1302	}
1303	}	1449	}
1304	else	1450	else
1305	#endif	1451	#endif
1306	{	1452	{
1307	ev_rt_now = ev_time ();	1453	ev_rt_now = ev_time ();
1308		1454
1309	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1455	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1310	{	1456	{
1311	#if EV_PERIODIC_ENABLE	1457	#if EV_PERIODIC_ENABLE
1312	periodics_reschedule (EV_A);	1458	periodics_reschedule (EV_A);
1313	#endif	1459	#endif
1314
1315	/* adjust timers. this is easy, as the offset is the same for all of them */	1460	/* adjust timers. this is easy, as the offset is the same for all of them */
1316	for (i = 0; i < timercnt; ++i)	1461	for (i = 0; i < timercnt; ++i)
1317	((WT)timers [i])->at += ev_rt_now - mn_now;	1462	((WT)timers [i])->at += ev_rt_now - mn_now;
1318	}	1463	}
1319		1464
…		…
1342	? EVUNLOOP_ONE	1487	? EVUNLOOP_ONE
1343	: EVUNLOOP_CANCEL;	1488	: EVUNLOOP_CANCEL;
1344		1489
1345	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1490	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1346		1491
1347	for (;;)	1492	do
1348	{	1493	{
1349	#ifndef _WIN32	1494	#ifndef _WIN32
1350	if (expect_false (curpid)) /* penalise the forking check even more */	1495	if (expect_false (curpid)) /* penalise the forking check even more */
1351	if (expect_false (getpid () != curpid))	1496	if (expect_false (getpid () != curpid))
1352	{	1497	{
…		…
1363	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1508	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1364	call_pending (EV_A);	1509	call_pending (EV_A);
1365	}	1510	}
1366	#endif	1511	#endif
1367		1512
1368	/* queue check watchers (and execute them) */	1513	/* queue prepare watchers (and execute them) */
1369	if (expect_false (preparecnt))	1514	if (expect_false (preparecnt))
1370	{	1515	{
1371	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1516	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1372	call_pending (EV_A);	1517	call_pending (EV_A);
1373	}	1518	}
…		…
1382	/* update fd-related kernel structures */	1527	/* update fd-related kernel structures */
1383	fd_reify (EV_A);	1528	fd_reify (EV_A);
1384		1529
1385	/* calculate blocking time */	1530	/* calculate blocking time */
1386	{	1531	{
1387	ev_tstamp block;	1532	ev_tstamp waittime = 0.;
		1533	ev_tstamp sleeptime = 0.;
1388		1534
1389	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1535	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1390	block = 0.; /* do not block at all */
1391	else
1392	{	1536	{
1393	/* update time to cancel out callback processing overhead */	1537	/* update time to cancel out callback processing overhead */
1394	#if EV_USE_MONOTONIC
1395	if (expect_true (have_monotonic))
1396	time_update_monotonic (EV_A);	1538	time_update (EV_A_ 1e100);
1397	else
1398	#endif
1399	{
1400	ev_rt_now = ev_time ();
1401	mn_now = ev_rt_now;
1402	}
1403		1539
1404	block = MAX_BLOCKTIME;	1540	waittime = MAX_BLOCKTIME;
1405		1541
1406	if (timercnt)	1542	if (timercnt)
1407	{	1543	{
1408	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1544	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1409	if (block > to) block = to;	1545	if (waittime > to) waittime = to;
1410	}	1546	}
1411		1547
1412	#if EV_PERIODIC_ENABLE	1548	#if EV_PERIODIC_ENABLE
1413	if (periodiccnt)	1549	if (periodiccnt)
1414	{	1550	{
1415	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1551	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1416	if (block > to) block = to;	1552	if (waittime > to) waittime = to;
1417	}	1553	}
1418	#endif	1554	#endif
1419		1555
1420	if (expect_false (block < 0.)) block = 0.;	1556	if (expect_false (waittime < timeout_blocktime))
		1557	waittime = timeout_blocktime;
		1558
		1559	sleeptime = waittime - backend_fudge;
		1560
		1561	if (expect_true (sleeptime > io_blocktime))
		1562	sleeptime = io_blocktime;
		1563
		1564	if (sleeptime)
		1565	{
		1566	ev_sleep (sleeptime);
		1567	waittime -= sleeptime;
		1568	}
1421	}	1569	}
1422		1570
		1571	++loop_count;
1423	backend_poll (EV_A_ block);	1572	backend_poll (EV_A_ waittime);
		1573
		1574	/* update ev_rt_now, do magic */
		1575	time_update (EV_A_ waittime + sleeptime);
1424	}	1576	}
1425
1426	/* update ev_rt_now, do magic */
1427	time_update (EV_A);
1428		1577
1429	/* queue pending timers and reschedule them */	1578	/* queue pending timers and reschedule them */
1430	timers_reify (EV_A); /* relative timers called last */	1579	timers_reify (EV_A); /* relative timers called last */
1431	#if EV_PERIODIC_ENABLE	1580	#if EV_PERIODIC_ENABLE
1432	periodics_reify (EV_A); /* absolute timers called first */	1581	periodics_reify (EV_A); /* absolute timers called first */
1433	#endif	1582	#endif
1434		1583
		1584	#if EV_IDLE_ENABLE
1435	/* queue idle watchers unless other events are pending */	1585	/* queue idle watchers unless other events are pending */
1436	if (idlecnt && !any_pending (EV_A))	1586	idle_reify (EV_A);
1437	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1587	#endif
1438		1588
1439	/* queue check watchers, to be executed first */	1589	/* queue check watchers, to be executed first */
1440	if (expect_false (checkcnt))	1590	if (expect_false (checkcnt))
1441	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1591	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1442		1592
1443	call_pending (EV_A);	1593	call_pending (EV_A);
1444		1594
1445	if (expect_false (loop_done))
1446	break;
1447	}	1595	}
		1596	while (expect_true (activecnt && !loop_done));
1448		1597
1449	if (loop_done == EVUNLOOP_ONE)	1598	if (loop_done == EVUNLOOP_ONE)
1450	loop_done = EVUNLOOP_CANCEL;	1599	loop_done = EVUNLOOP_CANCEL;
1451	}	1600	}
1452		1601
…		…
1479	head = &(*head)->next;	1628	head = &(*head)->next;
1480	}	1629	}
1481	}	1630	}
1482		1631
1483	void inline_speed	1632	void inline_speed
1484	ev_clear_pending (EV_P_ W w)	1633	clear_pending (EV_P_ W w)
1485	{	1634	{
1486	if (w->pending)	1635	if (w->pending)
1487	{	1636	{
1488	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1637	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1489	w->pending = 0;	1638	w->pending = 0;
1490	}	1639	}
1491	}	1640	}
1492		1641
		1642	int
		1643	ev_clear_pending (EV_P_ void *w)
		1644	{
		1645	W w_ = (W)w;
		1646	int pending = w_->pending;
		1647
		1648	if (expect_true (pending))
		1649	{
		1650	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1651	w_->pending = 0;
		1652	p->w = 0;
		1653	return p->events;
		1654	}
		1655	else
		1656	return 0;
		1657	}
		1658
		1659	void inline_size
		1660	pri_adjust (EV_P_ W w)
		1661	{
		1662	int pri = w->priority;
		1663	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1664	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1665	w->priority = pri;
		1666	}
		1667
1493	void inline_speed	1668	void inline_speed
1494	ev_start (EV_P_ W w, int active)	1669	ev_start (EV_P_ W w, int active)
1495	{	1670	{
1496	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1671	pri_adjust (EV_A_ w);
1497	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1498
1499	w->active = active;	1672	w->active = active;
1500	ev_ref (EV_A);	1673	ev_ref (EV_A);
1501	}	1674	}
1502		1675
1503	void inline_size	1676	void inline_size
…		…
1507	w->active = 0;	1680	w->active = 0;
1508	}	1681	}
1509		1682
1510	/*****************************************************************************/	1683	/*****************************************************************************/
1511		1684
1512	void	1685	void noinline
1513	ev_io_start (EV_P_ ev_io *w)	1686	ev_io_start (EV_P_ ev_io *w)
1514	{	1687	{
1515	int fd = w->fd;	1688	int fd = w->fd;
1516		1689
1517	if (expect_false (ev_is_active (w)))	1690	if (expect_false (ev_is_active (w)))
…		…
1519		1692
1520	assert (("ev_io_start called with negative fd", fd >= 0));	1693	assert (("ev_io_start called with negative fd", fd >= 0));
1521		1694
1522	ev_start (EV_A_ (W)w, 1);	1695	ev_start (EV_A_ (W)w, 1);
1523	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1696	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1524	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1697	wlist_add (&anfds[fd].head, (WL)w);
1525		1698
1526	fd_change (EV_A_ fd);	1699	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1700	w->events &= ~EV_IOFDSET;
1527	}	1701	}
1528		1702
1529	void	1703	void noinline
1530	ev_io_stop (EV_P_ ev_io *w)	1704	ev_io_stop (EV_P_ ev_io *w)
1531	{	1705	{
1532	ev_clear_pending (EV_A_ (W)w);	1706	clear_pending (EV_A_ (W)w);
1533	if (expect_false (!ev_is_active (w)))	1707	if (expect_false (!ev_is_active (w)))
1534	return;	1708	return;
1535		1709
1536	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1710	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1537		1711
1538	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1712	wlist_del (&anfds[w->fd].head, (WL)w);
1539	ev_stop (EV_A_ (W)w);	1713	ev_stop (EV_A_ (W)w);
1540		1714
1541	fd_change (EV_A_ w->fd);	1715	fd_change (EV_A_ w->fd, 1);
1542	}	1716	}
1543		1717
1544	void	1718	void noinline
1545	ev_timer_start (EV_P_ ev_timer *w)	1719	ev_timer_start (EV_P_ ev_timer *w)
1546	{	1720	{
1547	if (expect_false (ev_is_active (w)))	1721	if (expect_false (ev_is_active (w)))
1548	return;	1722	return;
1549		1723
1550	((WT)w)->at += mn_now;	1724	((WT)w)->at += mn_now;
1551		1725
1552	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1726	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1553		1727
1554	ev_start (EV_A_ (W)w, ++timercnt);	1728	ev_start (EV_A_ (W)w, ++timercnt);
1555	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1729	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1556	timers [timercnt - 1] = w;	1730	timers [timercnt - 1] = (WT)w;
1557	upheap ((WT *)timers, timercnt - 1);	1731	upheap (timers, timercnt - 1);
1558		1732
1559	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1733	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1560	}	1734	}
1561		1735
1562	void	1736	void noinline
1563	ev_timer_stop (EV_P_ ev_timer *w)	1737	ev_timer_stop (EV_P_ ev_timer *w)
1564	{	1738	{
1565	ev_clear_pending (EV_A_ (W)w);	1739	clear_pending (EV_A_ (W)w);
1566	if (expect_false (!ev_is_active (w)))	1740	if (expect_false (!ev_is_active (w)))
1567	return;	1741	return;
1568		1742
1569	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1743	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1570		1744
1571	{	1745	{
1572	int active = ((W)w)->active;	1746	int active = ((W)w)->active;
1573		1747
1574	if (expect_true (--active < --timercnt))	1748	if (expect_true (--active < --timercnt))
1575	{	1749	{
1576	timers [active] = timers [timercnt];	1750	timers [active] = timers [timercnt];
1577	adjustheap ((WT *)timers, timercnt, active);	1751	adjustheap (timers, timercnt, active);
1578	}	1752	}
1579	}	1753	}
1580		1754
1581	((WT)w)->at -= mn_now;	1755	((WT)w)->at -= mn_now;
1582		1756
1583	ev_stop (EV_A_ (W)w);	1757	ev_stop (EV_A_ (W)w);
1584	}	1758	}
1585		1759
1586	void	1760	void noinline
1587	ev_timer_again (EV_P_ ev_timer *w)	1761	ev_timer_again (EV_P_ ev_timer *w)
1588	{	1762	{
1589	if (ev_is_active (w))	1763	if (ev_is_active (w))
1590	{	1764	{
1591	if (w->repeat)	1765	if (w->repeat)
1592	{	1766	{
1593	((WT)w)->at = mn_now + w->repeat;	1767	((WT)w)->at = mn_now + w->repeat;
1594	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1768	adjustheap (timers, timercnt, ((W)w)->active - 1);
1595	}	1769	}
1596	else	1770	else
1597	ev_timer_stop (EV_A_ w);	1771	ev_timer_stop (EV_A_ w);
1598	}	1772	}
1599	else if (w->repeat)	1773	else if (w->repeat)
…		…
1602	ev_timer_start (EV_A_ w);	1776	ev_timer_start (EV_A_ w);
1603	}	1777	}
1604	}	1778	}
1605		1779
1606	#if EV_PERIODIC_ENABLE	1780	#if EV_PERIODIC_ENABLE
1607	void	1781	void noinline
1608	ev_periodic_start (EV_P_ ev_periodic *w)	1782	ev_periodic_start (EV_P_ ev_periodic *w)
1609	{	1783	{
1610	if (expect_false (ev_is_active (w)))	1784	if (expect_false (ev_is_active (w)))
1611	return;	1785	return;
1612		1786
…		…
1614	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1788	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1615	else if (w->interval)	1789	else if (w->interval)
1616	{	1790	{
1617	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1791	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1618	/* this formula differs from the one in periodic_reify because we do not always round up */	1792	/* this formula differs from the one in periodic_reify because we do not always round up */
1619	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1793	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1620	}	1794	}
		1795	else
		1796	((WT)w)->at = w->offset;
1621		1797
1622	ev_start (EV_A_ (W)w, ++periodiccnt);	1798	ev_start (EV_A_ (W)w, ++periodiccnt);
1623	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1799	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1624	periodics [periodiccnt - 1] = w;	1800	periodics [periodiccnt - 1] = (WT)w;
1625	upheap ((WT *)periodics, periodiccnt - 1);	1801	upheap (periodics, periodiccnt - 1);
1626		1802
1627	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1803	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1628	}	1804	}
1629		1805
1630	void	1806	void noinline
1631	ev_periodic_stop (EV_P_ ev_periodic *w)	1807	ev_periodic_stop (EV_P_ ev_periodic *w)
1632	{	1808	{
1633	ev_clear_pending (EV_A_ (W)w);	1809	clear_pending (EV_A_ (W)w);
1634	if (expect_false (!ev_is_active (w)))	1810	if (expect_false (!ev_is_active (w)))
1635	return;	1811	return;
1636		1812
1637	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1813	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1638		1814
1639	{	1815	{
1640	int active = ((W)w)->active;	1816	int active = ((W)w)->active;
1641		1817
1642	if (expect_true (--active < --periodiccnt))	1818	if (expect_true (--active < --periodiccnt))
1643	{	1819	{
1644	periodics [active] = periodics [periodiccnt];	1820	periodics [active] = periodics [periodiccnt];
1645	adjustheap ((WT *)periodics, periodiccnt, active);	1821	adjustheap (periodics, periodiccnt, active);
1646	}	1822	}
1647	}	1823	}
1648		1824
1649	ev_stop (EV_A_ (W)w);	1825	ev_stop (EV_A_ (W)w);
1650	}	1826	}
1651		1827
1652	void	1828	void noinline
1653	ev_periodic_again (EV_P_ ev_periodic *w)	1829	ev_periodic_again (EV_P_ ev_periodic *w)
1654	{	1830	{
1655	/* TODO: use adjustheap and recalculation */	1831	/* TODO: use adjustheap and recalculation */
1656	ev_periodic_stop (EV_A_ w);	1832	ev_periodic_stop (EV_A_ w);
1657	ev_periodic_start (EV_A_ w);	1833	ev_periodic_start (EV_A_ w);
…		…
1660		1836
1661	#ifndef SA_RESTART	1837	#ifndef SA_RESTART
1662	# define SA_RESTART 0	1838	# define SA_RESTART 0
1663	#endif	1839	#endif
1664		1840
1665	void	1841	void noinline
1666	ev_signal_start (EV_P_ ev_signal *w)	1842	ev_signal_start (EV_P_ ev_signal *w)
1667	{	1843	{
1668	#if EV_MULTIPLICITY	1844	#if EV_MULTIPLICITY
1669	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1845	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1670	#endif	1846	#endif
1671	if (expect_false (ev_is_active (w)))	1847	if (expect_false (ev_is_active (w)))
1672	return;	1848	return;
1673		1849
1674	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1850	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1675		1851
		1852	{
		1853	#ifndef _WIN32
		1854	sigset_t full, prev;
		1855	sigfillset (&full);
		1856	sigprocmask (SIG_SETMASK, &full, &prev);
		1857	#endif
		1858
		1859	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1860
		1861	#ifndef _WIN32
		1862	sigprocmask (SIG_SETMASK, &prev, 0);
		1863	#endif
		1864	}
		1865
1676	ev_start (EV_A_ (W)w, 1);	1866	ev_start (EV_A_ (W)w, 1);
1677	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1678	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1867	wlist_add (&signals [w->signum - 1].head, (WL)w);
1679		1868
1680	if (!((WL)w)->next)	1869	if (!((WL)w)->next)
1681	{	1870	{
1682	#if _WIN32	1871	#if _WIN32
1683	signal (w->signum, sighandler);	1872	signal (w->signum, sighandler);
…		…
1689	sigaction (w->signum, &sa, 0);	1878	sigaction (w->signum, &sa, 0);
1690	#endif	1879	#endif
1691	}	1880	}
1692	}	1881	}
1693		1882
1694	void	1883	void noinline
1695	ev_signal_stop (EV_P_ ev_signal *w)	1884	ev_signal_stop (EV_P_ ev_signal *w)
1696	{	1885	{
1697	ev_clear_pending (EV_A_ (W)w);	1886	clear_pending (EV_A_ (W)w);
1698	if (expect_false (!ev_is_active (w)))	1887	if (expect_false (!ev_is_active (w)))
1699	return;	1888	return;
1700		1889
1701	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1890	wlist_del (&signals [w->signum - 1].head, (WL)w);
1702	ev_stop (EV_A_ (W)w);	1891	ev_stop (EV_A_ (W)w);
1703		1892
1704	if (!signals [w->signum - 1].head)	1893	if (!signals [w->signum - 1].head)
1705	signal (w->signum, SIG_DFL);	1894	signal (w->signum, SIG_DFL);
1706	}	1895	}
…		…
1713	#endif	1902	#endif
1714	if (expect_false (ev_is_active (w)))	1903	if (expect_false (ev_is_active (w)))
1715	return;	1904	return;
1716		1905
1717	ev_start (EV_A_ (W)w, 1);	1906	ev_start (EV_A_ (W)w, 1);
1718	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1907	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1719	}	1908	}
1720		1909
1721	void	1910	void
1722	ev_child_stop (EV_P_ ev_child *w)	1911	ev_child_stop (EV_P_ ev_child *w)
1723	{	1912	{
1724	ev_clear_pending (EV_A_ (W)w);	1913	clear_pending (EV_A_ (W)w);
1725	if (expect_false (!ev_is_active (w)))	1914	if (expect_false (!ev_is_active (w)))
1726	return;	1915	return;
1727		1916
1728	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1917	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1729	ev_stop (EV_A_ (W)w);	1918	ev_stop (EV_A_ (W)w);
1730	}	1919	}
1731		1920
1732	#if EV_STAT_ENABLE	1921	#if EV_STAT_ENABLE
1733		1922
…		…
1965	}	2154	}
1966		2155
1967	void	2156	void
1968	ev_stat_stop (EV_P_ ev_stat *w)	2157	ev_stat_stop (EV_P_ ev_stat *w)
1969	{	2158	{
1970	ev_clear_pending (EV_A_ (W)w);	2159	clear_pending (EV_A_ (W)w);
1971	if (expect_false (!ev_is_active (w)))	2160	if (expect_false (!ev_is_active (w)))
1972	return;	2161	return;
1973		2162
1974	#if EV_USE_INOTIFY	2163	#if EV_USE_INOTIFY
1975	infy_del (EV_A_ w);	2164	infy_del (EV_A_ w);
…		…
1978		2167
1979	ev_stop (EV_A_ (W)w);	2168	ev_stop (EV_A_ (W)w);
1980	}	2169	}
1981	#endif	2170	#endif
1982		2171
		2172	#if EV_IDLE_ENABLE
1983	void	2173	void
1984	ev_idle_start (EV_P_ ev_idle *w)	2174	ev_idle_start (EV_P_ ev_idle *w)
1985	{	2175	{
1986	if (expect_false (ev_is_active (w)))	2176	if (expect_false (ev_is_active (w)))
1987	return;	2177	return;
1988		2178
		2179	pri_adjust (EV_A_ (W)w);
		2180
		2181	{
		2182	int active = ++idlecnt [ABSPRI (w)];
		2183
		2184	++idleall;
1989	ev_start (EV_A_ (W)w, ++idlecnt);	2185	ev_start (EV_A_ (W)w, active);
		2186
1990	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2187	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1991	idles [idlecnt - 1] = w;	2188	idles [ABSPRI (w)][active - 1] = w;
		2189	}
1992	}	2190	}
1993		2191
1994	void	2192	void
1995	ev_idle_stop (EV_P_ ev_idle *w)	2193	ev_idle_stop (EV_P_ ev_idle *w)
1996	{	2194	{
1997	ev_clear_pending (EV_A_ (W)w);	2195	clear_pending (EV_A_ (W)w);
1998	if (expect_false (!ev_is_active (w)))	2196	if (expect_false (!ev_is_active (w)))
1999	return;	2197	return;
2000		2198
2001	{	2199	{
2002	int active = ((W)w)->active;	2200	int active = ((W)w)->active;
2003	idles [active - 1] = idles [--idlecnt];	2201
		2202	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2004	((W)idles [active - 1])->active = active;	2203	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2204
		2205	ev_stop (EV_A_ (W)w);
		2206	--idleall;
2005	}	2207	}
2006
2007	ev_stop (EV_A_ (W)w);
2008	}	2208	}
		2209	#endif
2009		2210
2010	void	2211	void
2011	ev_prepare_start (EV_P_ ev_prepare *w)	2212	ev_prepare_start (EV_P_ ev_prepare *w)
2012	{	2213	{
2013	if (expect_false (ev_is_active (w)))	2214	if (expect_false (ev_is_active (w)))
…		…
2019	}	2220	}
2020		2221
2021	void	2222	void
2022	ev_prepare_stop (EV_P_ ev_prepare *w)	2223	ev_prepare_stop (EV_P_ ev_prepare *w)
2023	{	2224	{
2024	ev_clear_pending (EV_A_ (W)w);	2225	clear_pending (EV_A_ (W)w);
2025	if (expect_false (!ev_is_active (w)))	2226	if (expect_false (!ev_is_active (w)))
2026	return;	2227	return;
2027		2228
2028	{	2229	{
2029	int active = ((W)w)->active;	2230	int active = ((W)w)->active;
…		…
2046	}	2247	}
2047		2248
2048	void	2249	void
2049	ev_check_stop (EV_P_ ev_check *w)	2250	ev_check_stop (EV_P_ ev_check *w)
2050	{	2251	{
2051	ev_clear_pending (EV_A_ (W)w);	2252	clear_pending (EV_A_ (W)w);
2052	if (expect_false (!ev_is_active (w)))	2253	if (expect_false (!ev_is_active (w)))
2053	return;	2254	return;
2054		2255
2055	{	2256	{
2056	int active = ((W)w)->active;	2257	int active = ((W)w)->active;
…		…
2063		2264
2064	#if EV_EMBED_ENABLE	2265	#if EV_EMBED_ENABLE
2065	void noinline	2266	void noinline
2066	ev_embed_sweep (EV_P_ ev_embed *w)	2267	ev_embed_sweep (EV_P_ ev_embed *w)
2067	{	2268	{
2068	ev_loop (w->loop, EVLOOP_NONBLOCK);	2269	ev_loop (w->other, EVLOOP_NONBLOCK);
2069	}	2270	}
2070		2271
2071	static void	2272	static void
2072	embed_cb (EV_P_ ev_io *io, int revents)	2273	embed_io_cb (EV_P_ ev_io *io, int revents)
2073	{	2274	{
2074	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2275	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2075		2276
2076	if (ev_cb (w))	2277	if (ev_cb (w))
2077	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2278	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2078	else	2279	else
2079	ev_embed_sweep (loop, w);	2280	ev_loop (w->other, EVLOOP_NONBLOCK);
2080	}	2281	}
		2282
		2283	static void
		2284	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2285	{
		2286	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2287
		2288	{
		2289	struct ev_loop *loop = w->other;
		2290
		2291	while (fdchangecnt)
		2292	{
		2293	fd_reify (EV_A);
		2294	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2295	}
		2296	}
		2297	}
		2298
		2299	#if 0
		2300	static void
		2301	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2302	{
		2303	ev_idle_stop (EV_A_ idle);
		2304	}
		2305	#endif
2081		2306
2082	void	2307	void
2083	ev_embed_start (EV_P_ ev_embed *w)	2308	ev_embed_start (EV_P_ ev_embed *w)
2084	{	2309	{
2085	if (expect_false (ev_is_active (w)))	2310	if (expect_false (ev_is_active (w)))
2086	return;	2311	return;
2087		2312
2088	{	2313	{
2089	struct ev_loop *loop = w->loop;	2314	struct ev_loop *loop = w->other;
2090	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2315	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2091	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2316	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2092	}	2317	}
2093		2318
2094	ev_set_priority (&w->io, ev_priority (w));	2319	ev_set_priority (&w->io, ev_priority (w));
2095	ev_io_start (EV_A_ &w->io);	2320	ev_io_start (EV_A_ &w->io);
2096		2321
		2322	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2323	ev_set_priority (&w->prepare, EV_MINPRI);
		2324	ev_prepare_start (EV_A_ &w->prepare);
		2325
		2326	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2327
2097	ev_start (EV_A_ (W)w, 1);	2328	ev_start (EV_A_ (W)w, 1);
2098	}	2329	}
2099		2330
2100	void	2331	void
2101	ev_embed_stop (EV_P_ ev_embed *w)	2332	ev_embed_stop (EV_P_ ev_embed *w)
2102	{	2333	{
2103	ev_clear_pending (EV_A_ (W)w);	2334	clear_pending (EV_A_ (W)w);
2104	if (expect_false (!ev_is_active (w)))	2335	if (expect_false (!ev_is_active (w)))
2105	return;	2336	return;
2106		2337
2107	ev_io_stop (EV_A_ &w->io);	2338	ev_io_stop (EV_A_ &w->io);
		2339	ev_prepare_stop (EV_A_ &w->prepare);
2108		2340
2109	ev_stop (EV_A_ (W)w);	2341	ev_stop (EV_A_ (W)w);
2110	}	2342	}
2111	#endif	2343	#endif
2112		2344
…		…
2123	}	2355	}
2124		2356
2125	void	2357	void
2126	ev_fork_stop (EV_P_ ev_fork *w)	2358	ev_fork_stop (EV_P_ ev_fork *w)
2127	{	2359	{
2128	ev_clear_pending (EV_A_ (W)w);	2360	clear_pending (EV_A_ (W)w);
2129	if (expect_false (!ev_is_active (w)))	2361	if (expect_false (!ev_is_active (w)))
2130	return;	2362	return;
2131		2363
2132	{	2364	{
2133	int active = ((W)w)->active;	2365	int active = ((W)w)->active;
…		…
2201	ev_timer_set (&once->to, timeout, 0.);	2433	ev_timer_set (&once->to, timeout, 0.);
2202	ev_timer_start (EV_A_ &once->to);	2434	ev_timer_start (EV_A_ &once->to);
2203	}	2435	}
2204	}	2436	}
2205		2437
		2438	#if EV_MULTIPLICITY
		2439	#include "ev_wrap.h"
		2440	#endif
		2441
2206	#ifdef __cplusplus	2442	#ifdef __cplusplus
2207	}	2443	}
2208	#endif	2444	#endif
2209		2445

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Comparing libev/ev.c (file contents): Revision 1.159 by root, Sat Dec 1 19:48:36 2007 UTC vs. Revision 1.196 by root, Sat Dec 22 12:43:28 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.159 by root, Sat Dec 1 19:48:36 2007 UTC vs.
Revision 1.196 by root, Sat Dec 22 12:43:28 2007 UTC