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

Comparing libev/ev.c (file contents):
Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC vs.
Revision 1.198 by root, Sun Dec 23 04:45:51 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	#if EV_USE_MONOTONIC
		286	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		287	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	288	static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		289	#endif
256		290
257	#ifdef _WIN32	291	#ifdef _WIN32
258	# include "ev_win32.c"	292	# include "ev_win32.c"
259	#endif	293	#endif
260		294
…		…
396	{	430	{
397	return ev_rt_now;	431	return ev_rt_now;
398	}	432	}
399	#endif	433	#endif
400		434
401	#define array_roundsize(type,n) (((n) \| 4) & ~3)	435	void
		436	ev_sleep (ev_tstamp delay)
		437	{
		438	if (delay > 0.)
		439	{
		440	#if EV_USE_NANOSLEEP
		441	struct timespec ts;
		442
		443	ts.tv_sec = (time_t)delay;
		444	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		445
		446	nanosleep (&ts, 0);
		447	#elif defined(_WIN32)
		448	Sleep (delay * 1e3);
		449	#else
		450	struct timeval tv;
		451
		452	tv.tv_sec = (time_t)delay;
		453	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		454
		455	select (0, 0, 0, 0, &tv);
		456	#endif
		457	}
		458	}
		459
		460	/*****************************************************************************/
		461
		462	int inline_size
		463	array_nextsize (int elem, int cur, int cnt)
		464	{
		465	int ncur = cur + 1;
		466
		467	do
		468	ncur <<= 1;
		469	while (cnt > ncur);
		470
		471	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		472	if (elem * ncur > 4096)
		473	{
		474	ncur *= elem;
		475	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;
		476	ncur = ncur - sizeof (void ) 4;
		477	ncur /= elem;
		478	}
		479
		480	return ncur;
		481	}
		482
		483	static noinline void *
		484	array_realloc (int elem, void base, int cur, int cnt)
		485	{
		486	cur = array_nextsize (elem, cur, cnt);
		487	return ev_realloc (base, elem * *cur);
		488	}
402		489
403	#define array_needsize(type,base,cur,cnt,init) \	490	#define array_needsize(type,base,cur,cnt,init) \
404	if (expect_false ((cnt) > cur)) \	491	if (expect_false ((cnt) > (cur))) \
405	{ \	492	{ \
406	int newcnt = cur; \	493	int ocur_ = (cur); \
407	do \	494	(base) = (type *)array_realloc \
408	{ \	495	(sizeof (type), (base), &(cur), (cnt)); \
409	newcnt = array_roundsize (type, newcnt << 1); \	496	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	}	497	}
417		498
		499	#if 0
418	#define array_slim(type,stem) \	500	#define array_slim(type,stem) \
419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	501	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420	{ \	502	{ \
421	stem ## max = array_roundsize (stem ## cnt >> 1); \	503	stem ## max = array_roundsize (stem ## cnt >> 1); \
422	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	504	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	505	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
424	}	506	}
		507	#endif
425		508
426	#define array_free(stem, idx) \	509	#define array_free(stem, idx) \
427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	510	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428		511
429	/*****************************************************************************/	512	/*****************************************************************************/
430		513
431	void noinline	514	void noinline
432	ev_feed_event (EV_P_ void *w, int revents)	515	ev_feed_event (EV_P_ void *w, int revents)
433	{	516	{
434	W w_ = (W)w;	517	W w_ = (W)w;
		518	int pri = ABSPRI (w_);
435		519
436	if (expect_false (w_->pending))	520	if (expect_false (w_->pending))
		521	pendings [pri][w_->pending - 1].events \|= revents;
		522	else
437	{	523	{
		524	w_->pending = ++pendingcnt [pri];
		525	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		526	pendings [pri][w_->pending - 1].w = w_;
438	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	527	pendings [pri][w_->pending - 1].events = revents;
439	return;
440	}	528	}
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	}	529	}
447		530
448	void inline_size	531	void inline_speed
449	queue_events (EV_P_ W *events, int eventcnt, int type)	532	queue_events (EV_P_ W *events, int eventcnt, int type)
450	{	533	{
451	int i;	534	int i;
452		535
453	for (i = 0; i < eventcnt; ++i)	536	for (i = 0; i < eventcnt; ++i)
…		…
485	}	568	}
486		569
487	void	570	void
488	ev_feed_fd_event (EV_P_ int fd, int revents)	571	ev_feed_fd_event (EV_P_ int fd, int revents)
489	{	572	{
		573	if (fd >= 0 && fd < anfdmax)
490	fd_event (EV_A_ fd, revents);	574	fd_event (EV_A_ fd, revents);
491	}	575	}
492		576
493	void inline_size	577	void inline_size
494	fd_reify (EV_P)	578	fd_reify (EV_P)
495	{	579	{
…		…
499	{	583	{
500	int fd = fdchanges [i];	584	int fd = fdchanges [i];
501	ANFD *anfd = anfds + fd;	585	ANFD *anfd = anfds + fd;
502	ev_io *w;	586	ev_io *w;
503		587
504	int events = 0;	588	unsigned char events = 0;
505		589
506	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	590	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
507	events \|= w->events;	591	events \|= (unsigned char)w->events;
508		592
509	#if EV_SELECT_IS_WINSOCKET	593	#if EV_SELECT_IS_WINSOCKET
510	if (events)	594	if (events)
511	{	595	{
512	unsigned long argp;	596	unsigned long argp;
513	anfd->handle = _get_osfhandle (fd);	597	anfd->handle = _get_osfhandle (fd);
514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	598	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515	}	599	}
516	#endif	600	#endif
517		601
		602	{
		603	unsigned char o_events = anfd->events;
		604	unsigned char o_reify = anfd->reify;
		605
518	anfd->reify = 0;	606	anfd->reify = 0;
519
520	backend_modify (EV_A_ fd, anfd->events, events);
521	anfd->events = events;	607	anfd->events = events;
		608
		609	if (o_events != events \|\| o_reify & EV_IOFDSET)
		610	backend_modify (EV_A_ fd, o_events, events);
		611	}
522	}	612	}
523		613
524	fdchangecnt = 0;	614	fdchangecnt = 0;
525	}	615	}
526		616
527	void inline_size	617	void inline_size
528	fd_change (EV_P_ int fd)	618	fd_change (EV_P_ int fd, int flags)
529	{	619	{
530	if (expect_false (anfds [fd].reify))	620	unsigned char reify = anfds [fd].reify;
531	return;
532
533	anfds [fd].reify = 1;	621	anfds [fd].reify \|= flags;
534		622
		623	if (expect_true (!reify))
		624	{
535	++fdchangecnt;	625	++fdchangecnt;
536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	626	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537	fdchanges [fdchangecnt - 1] = fd;	627	fdchanges [fdchangecnt - 1] = fd;
		628	}
538	}	629	}
539		630
540	void inline_speed	631	void inline_speed
541	fd_kill (EV_P_ int fd)	632	fd_kill (EV_P_ int fd)
542	{	633	{
…		…
593		684
594	for (fd = 0; fd < anfdmax; ++fd)	685	for (fd = 0; fd < anfdmax; ++fd)
595	if (anfds [fd].events)	686	if (anfds [fd].events)
596	{	687	{
597	anfds [fd].events = 0;	688	anfds [fd].events = 0;
598	fd_change (EV_A_ fd);	689	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
599	}	690	}
600	}	691	}
601		692
602	/*****************************************************************************/	693	/*****************************************************************************/
603		694
604	void inline_speed	695	void inline_speed
605	upheap (WT *heap, int k)	696	upheap (WT *heap, int k)
606	{	697	{
607	WT w = heap [k];	698	WT w = heap [k];
608		699
609	while (k && heap [k >> 1]->at > w->at)	700	while (k)
610	{	701	{
		702	int p = (k - 1) >> 1;
		703
		704	if (heap [p]->at <= w->at)
		705	break;
		706
611	heap [k] = heap [k >> 1];	707	heap [k] = heap [p];
612	((W)heap [k])->active = k + 1;	708	((W)heap [k])->active = k + 1;
613	k >>= 1;	709	k = p;
614	}	710	}
615		711
616	heap [k] = w;	712	heap [k] = w;
617	((W)heap [k])->active = k + 1;	713	((W)heap [k])->active = k + 1;
618
619	}	714	}
620		715
621	void inline_speed	716	void inline_speed
622	downheap (WT *heap, int N, int k)	717	downheap (WT *heap, int N, int k)
623	{	718	{
624	WT w = heap [k];	719	WT w = heap [k];
625		720
626	while (k < (N >> 1))	721	for (;;)
627	{	722	{
628	int j = k << 1;	723	int c = (k << 1) + 1;
629		724
630	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	725	if (c >= N)
631	++j;
632
633	if (w->at <= heap [j]->at)
634	break;	726	break;
635		727
		728	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		729	? 1 : 0;
		730
		731	if (w->at <= heap [c]->at)
		732	break;
		733
636	heap [k] = heap [j];	734	heap [k] = heap [c];
637	((W)heap [k])->active = k + 1;	735	((W)heap [k])->active = k + 1;
		736
638	k = j;	737	k = c;
639	}	738	}
640		739
641	heap [k] = w;	740	heap [k] = w;
642	((W)heap [k])->active = k + 1;	741	((W)heap [k])->active = k + 1;
643	}	742	}
…		…
725	for (signum = signalmax; signum--; )	824	for (signum = signalmax; signum--; )
726	if (signals [signum].gotsig)	825	if (signals [signum].gotsig)
727	ev_feed_signal_event (EV_A_ signum + 1);	826	ev_feed_signal_event (EV_A_ signum + 1);
728	}	827	}
729		828
730	void inline_size	829	void inline_speed
731	fd_intern (int fd)	830	fd_intern (int fd)
732	{	831	{
733	#ifdef _WIN32	832	#ifdef _WIN32
734	int arg = 1;	833	int arg = 1;
735	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	834	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
750	ev_unref (EV_A); /* child watcher should not keep loop alive */	849	ev_unref (EV_A); /* child watcher should not keep loop alive */
751	}	850	}
752		851
753	/*****************************************************************************/	852	/*****************************************************************************/
754		853
755	static ev_child *childs [EV_PID_HASHSIZE];	854	static WL childs [EV_PID_HASHSIZE];
756		855
757	#ifndef _WIN32	856	#ifndef _WIN32
758		857
759	static ev_signal childev;	858	static ev_signal childev;
760		859
…		…
764	ev_child *w;	863	ev_child *w;
765		864
766	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	865	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
767	if (w->pid == pid \|\| !w->pid)	866	if (w->pid == pid \|\| !w->pid)
768	{	867	{
769	ev_priority (w) = ev_priority (sw); /* need to do it now */	868	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
770	w->rpid = pid;	869	w->rpid = pid;
771	w->rstatus = status;	870	w->rstatus = status;
772	ev_feed_event (EV_A_ (W)w, EV_CHILD);	871	ev_feed_event (EV_A_ (W)w, EV_CHILD);
773	}	872	}
774	}	873	}
775		874
776	#ifndef WCONTINUED	875	#ifndef WCONTINUED
…		…
875	}	974	}
876		975
877	unsigned int	976	unsigned int
878	ev_embeddable_backends (void)	977	ev_embeddable_backends (void)
879	{	978	{
880	return EVBACKEND_EPOLL	979	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
881	\| EVBACKEND_KQUEUE	980
882	\| EVBACKEND_PORT;	981	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		982	/* please fix it and tell me how to detect the fix */
		983	flags &= ~EVBACKEND_EPOLL;
		984
		985	return flags;
883	}	986	}
884		987
885	unsigned int	988	unsigned int
886	ev_backend (EV_P)	989	ev_backend (EV_P)
887	{	990	{
888	return backend;	991	return backend;
		992	}
		993
		994	unsigned int
		995	ev_loop_count (EV_P)
		996	{
		997	return loop_count;
		998	}
		999
		1000	void
		1001	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1002	{
		1003	io_blocktime = interval;
		1004	}
		1005
		1006	void
		1007	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1008	{
		1009	timeout_blocktime = interval;
889	}	1010	}
890		1011
891	static void noinline	1012	static void noinline
892	loop_init (EV_P_ unsigned int flags)	1013	loop_init (EV_P_ unsigned int flags)
893	{	1014	{
…		…
904	ev_rt_now = ev_time ();	1025	ev_rt_now = ev_time ();
905	mn_now = get_clock ();	1026	mn_now = get_clock ();
906	now_floor = mn_now;	1027	now_floor = mn_now;
907	rtmn_diff = ev_rt_now - mn_now;	1028	rtmn_diff = ev_rt_now - mn_now;
908		1029
		1030	io_blocktime = 0.;
		1031	timeout_blocktime = 0.;
		1032
		1033	/* pid check not overridable via env */
		1034	#ifndef _WIN32
		1035	if (flags & EVFLAG_FORKCHECK)
		1036	curpid = getpid ();
		1037	#endif
		1038
909	if (!(flags & EVFLAG_NOENV)	1039	if (!(flags & EVFLAG_NOENV)
910	&& !enable_secure ()	1040	&& !enable_secure ()
911	&& getenv ("LIBEV_FLAGS"))	1041	&& getenv ("LIBEV_FLAGS"))
912	flags = atoi (getenv ("LIBEV_FLAGS"));	1042	flags = atoi (getenv ("LIBEV_FLAGS"));
913		1043
…		…
969	#if EV_USE_SELECT	1099	#if EV_USE_SELECT
970	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1100	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
971	#endif	1101	#endif
972		1102
973	for (i = NUMPRI; i--; )	1103	for (i = NUMPRI; i--; )
		1104	{
974	array_free (pending, [i]);	1105	array_free (pending, [i]);
		1106	#if EV_IDLE_ENABLE
		1107	array_free (idle, [i]);
		1108	#endif
		1109	}
		1110
		1111	ev_free (anfds); anfdmax = 0;
975		1112
976	/* have to use the microsoft-never-gets-it-right macro */	1113	/* have to use the microsoft-never-gets-it-right macro */
977	array_free (fdchange, EMPTY0);	1114	array_free (fdchange, EMPTY);
978	array_free (timer, EMPTY0);	1115	array_free (timer, EMPTY);
979	#if EV_PERIODIC_ENABLE	1116	#if EV_PERIODIC_ENABLE
980	array_free (periodic, EMPTY0);	1117	array_free (periodic, EMPTY);
981	#endif	1118	#endif
		1119	#if EV_FORK_ENABLE
982	array_free (idle, EMPTY0);	1120	array_free (fork, EMPTY);
		1121	#endif
983	array_free (prepare, EMPTY0);	1122	array_free (prepare, EMPTY);
984	array_free (check, EMPTY0);	1123	array_free (check, EMPTY);
985		1124
986	backend = 0;	1125	backend = 0;
987	}	1126	}
988		1127
989	void inline_size infy_fork (EV_P);	1128	void inline_size infy_fork (EV_P);
…		…
1125	postfork = 1;	1264	postfork = 1;
1126	}	1265	}
1127		1266
1128	/*****************************************************************************/	1267	/*****************************************************************************/
1129		1268
1130	int inline_size	1269	void
1131	any_pending (EV_P)	1270	ev_invoke (EV_P_ void *w, int revents)
1132	{	1271	{
1133	int pri;	1272	EV_CB_INVOKE ((W)w, revents);
1134
1135	for (pri = NUMPRI; pri--; )
1136	if (pendingcnt [pri])
1137	return 1;
1138
1139	return 0;
1140	}	1273	}
1141		1274
1142	void inline_speed	1275	void inline_speed
1143	call_pending (EV_P)	1276	call_pending (EV_P)
1144	{	1277	{
…		…
1162	void inline_size	1295	void inline_size
1163	timers_reify (EV_P)	1296	timers_reify (EV_P)
1164	{	1297	{
1165	while (timercnt && ((WT)timers [0])->at <= mn_now)	1298	while (timercnt && ((WT)timers [0])->at <= mn_now)
1166	{	1299	{
1167	ev_timer *w = timers [0];	1300	ev_timer w = (ev_timer )timers [0];
1168		1301
1169	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1302	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1170		1303
1171	/* first reschedule or stop timer */	1304	/* first reschedule or stop timer */
1172	if (w->repeat)	1305	if (w->repeat)
…		…
1175		1308
1176	((WT)w)->at += w->repeat;	1309	((WT)w)->at += w->repeat;
1177	if (((WT)w)->at < mn_now)	1310	if (((WT)w)->at < mn_now)
1178	((WT)w)->at = mn_now;	1311	((WT)w)->at = mn_now;
1179		1312
1180	downheap ((WT *)timers, timercnt, 0);	1313	downheap (timers, timercnt, 0);
1181	}	1314	}
1182	else	1315	else
1183	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1316	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1184		1317
1185	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1318	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1190	void inline_size	1323	void inline_size
1191	periodics_reify (EV_P)	1324	periodics_reify (EV_P)
1192	{	1325	{
1193	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1326	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1194	{	1327	{
1195	ev_periodic *w = periodics [0];	1328	ev_periodic w = (ev_periodic )periodics [0];
1196		1329
1197	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1330	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1198		1331
1199	/* first reschedule or stop timer */	1332	/* first reschedule or stop timer */
1200	if (w->reschedule_cb)	1333	if (w->reschedule_cb)
1201	{	1334	{
1202	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1335	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1203	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1336	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1204	downheap ((WT *)periodics, periodiccnt, 0);	1337	downheap (periodics, periodiccnt, 0);
1205	}	1338	}
1206	else if (w->interval)	1339	else if (w->interval)
1207	{	1340	{
1208	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1341	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1342	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1209	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1343	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1210	downheap ((WT *)periodics, periodiccnt, 0);	1344	downheap (periodics, periodiccnt, 0);
1211	}	1345	}
1212	else	1346	else
1213	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1347	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1214		1348
1215	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1349	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1222	int i;	1356	int i;
1223		1357
1224	/* adjust periodics after time jump */	1358	/* adjust periodics after time jump */
1225	for (i = 0; i < periodiccnt; ++i)	1359	for (i = 0; i < periodiccnt; ++i)
1226	{	1360	{
1227	ev_periodic *w = periodics [i];	1361	ev_periodic w = (ev_periodic )periodics [i];
1228		1362
1229	if (w->reschedule_cb)	1363	if (w->reschedule_cb)
1230	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1364	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1231	else if (w->interval)	1365	else if (w->interval)
1232	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1366	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1233	}	1367	}
1234		1368
1235	/* now rebuild the heap */	1369	/* now rebuild the heap */
1236	for (i = periodiccnt >> 1; i--; )	1370	for (i = periodiccnt >> 1; i--; )
1237	downheap ((WT *)periodics, periodiccnt, i);	1371	downheap (periodics, periodiccnt, i);
1238	}	1372	}
1239	#endif	1373	#endif
1240		1374
		1375	#if EV_IDLE_ENABLE
1241	int inline_size	1376	void inline_size
1242	time_update_monotonic (EV_P)	1377	idle_reify (EV_P)
1243	{	1378	{
		1379	if (expect_false (idleall))
		1380	{
		1381	int pri;
		1382
		1383	for (pri = NUMPRI; pri--; )
		1384	{
		1385	if (pendingcnt [pri])
		1386	break;
		1387
		1388	if (idlecnt [pri])
		1389	{
		1390	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1391	break;
		1392	}
		1393	}
		1394	}
		1395	}
		1396	#endif
		1397
		1398	void inline_speed
		1399	time_update (EV_P_ ev_tstamp max_block)
		1400	{
		1401	int i;
		1402
		1403	#if EV_USE_MONOTONIC
		1404	if (expect_true (have_monotonic))
		1405	{
		1406	ev_tstamp odiff = rtmn_diff;
		1407
1244	mn_now = get_clock ();	1408	mn_now = get_clock ();
1245		1409
		1410	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1411	/* interpolate in the meantime */
1246	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1412	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1247	{	1413	{
1248	ev_rt_now = rtmn_diff + mn_now;	1414	ev_rt_now = rtmn_diff + mn_now;
1249	return 0;	1415	return;
1250	}	1416	}
1251	else	1417
1252	{
1253	now_floor = mn_now;	1418	now_floor = mn_now;
1254	ev_rt_now = ev_time ();	1419	ev_rt_now = ev_time ();
1255	return 1;
1256	}
1257	}
1258		1420
1259	void inline_size	1421	/* loop a few times, before making important decisions.
1260	time_update (EV_P)	1422	* on the choice of "4": one iteration isn't enough,
1261	{	1423	* in case we get preempted during the calls to
1262	int i;	1424	* ev_time and get_clock. a second call is almost guaranteed
1263		1425	* to succeed in that case, though. and looping a few more times
1264	#if EV_USE_MONOTONIC	1426	* doesn't hurt either as we only do this on time-jumps or
1265	if (expect_true (have_monotonic))	1427	* in the unlikely event of having been preempted here.
1266	{	1428	*/
1267	if (time_update_monotonic (EV_A))	1429	for (i = 4; --i; )
1268	{	1430	{
1269	ev_tstamp odiff = rtmn_diff;
1270
1271	/* loop a few times, before making important decisions.
1272	* on the choice of "4": one iteration isn't enough,
1273	* in case we get preempted during the calls to
1274	* ev_time and get_clock. a second call is almost guaranteed
1275	* to succeed in that case, though. and looping a few more times
1276	* doesn't hurt either as we only do this on time-jumps or
1277	* in the unlikely event of having been preempted here.
1278	*/
1279	for (i = 4; --i; )
1280	{
1281	rtmn_diff = ev_rt_now - mn_now;	1431	rtmn_diff = ev_rt_now - mn_now;
1282		1432
1283	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1433	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1284	return; /* all is well */	1434	return; /* all is well */
1285		1435
1286	ev_rt_now = ev_time ();	1436	ev_rt_now = ev_time ();
1287	mn_now = get_clock ();	1437	mn_now = get_clock ();
1288	now_floor = mn_now;	1438	now_floor = mn_now;
1289	}	1439	}
1290		1440
1291	# if EV_PERIODIC_ENABLE	1441	# if EV_PERIODIC_ENABLE
1292	periodics_reschedule (EV_A);	1442	periodics_reschedule (EV_A);
1293	# endif	1443	# endif
1294	/* no timer adjustment, as the monotonic clock doesn't jump */	1444	/* no timer adjustment, as the monotonic clock doesn't jump */
1295	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1445	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1296	}
1297	}	1446	}
1298	else	1447	else
1299	#endif	1448	#endif
1300	{	1449	{
1301	ev_rt_now = ev_time ();	1450	ev_rt_now = ev_time ();
1302		1451
1303	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1452	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1304	{	1453	{
1305	#if EV_PERIODIC_ENABLE	1454	#if EV_PERIODIC_ENABLE
1306	periodics_reschedule (EV_A);	1455	periodics_reschedule (EV_A);
1307	#endif	1456	#endif
1308
1309	/* adjust timers. this is easy, as the offset is the same for all of them */	1457	/* adjust timers. this is easy, as the offset is the same for all of them */
1310	for (i = 0; i < timercnt; ++i)	1458	for (i = 0; i < timercnt; ++i)
1311	((WT)timers [i])->at += ev_rt_now - mn_now;	1459	((WT)timers [i])->at += ev_rt_now - mn_now;
1312	}	1460	}
1313		1461
…		…
1334	{	1482	{
1335	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1483	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
1336	? EVUNLOOP_ONE	1484	? EVUNLOOP_ONE
1337	: EVUNLOOP_CANCEL;	1485	: EVUNLOOP_CANCEL;
1338		1486
1339	while (activecnt)	1487	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1488
		1489	do
1340	{	1490	{
		1491	#ifndef _WIN32
		1492	if (expect_false (curpid)) /* penalise the forking check even more */
		1493	if (expect_false (getpid () != curpid))
		1494	{
		1495	curpid = getpid ();
		1496	postfork = 1;
		1497	}
		1498	#endif
		1499
1341	#if EV_FORK_ENABLE	1500	#if EV_FORK_ENABLE
1342	/* we might have forked, so queue fork handlers */	1501	/* we might have forked, so queue fork handlers */
1343	if (expect_false (postfork))	1502	if (expect_false (postfork))
1344	if (forkcnt)	1503	if (forkcnt)
1345	{	1504	{
1346	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1505	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1347	call_pending (EV_A);	1506	call_pending (EV_A);
1348	}	1507	}
1349	#endif	1508	#endif
1350		1509
1351	/* queue check watchers (and execute them) */	1510	/* queue prepare watchers (and execute them) */
1352	if (expect_false (preparecnt))	1511	if (expect_false (preparecnt))
1353	{	1512	{
1354	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1513	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1355	call_pending (EV_A);	1514	call_pending (EV_A);
1356	}	1515	}
1357		1516
		1517	if (expect_false (!activecnt))
		1518	break;
		1519
1358	/* we might have forked, so reify kernel state if necessary */	1520	/* we might have forked, so reify kernel state if necessary */
1359	if (expect_false (postfork))	1521	if (expect_false (postfork))
1360	loop_fork (EV_A);	1522	loop_fork (EV_A);
1361		1523
1362	/* update fd-related kernel structures */	1524	/* update fd-related kernel structures */
1363	fd_reify (EV_A);	1525	fd_reify (EV_A);
1364		1526
1365	/* calculate blocking time */	1527	/* calculate blocking time */
1366	{	1528	{
1367	ev_tstamp block;	1529	ev_tstamp waittime = 0.;
		1530	ev_tstamp sleeptime = 0.;
1368		1531
1369	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1532	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1370	block = 0.; /* do not block at all */
1371	else
1372	{	1533	{
1373	/* update time to cancel out callback processing overhead */	1534	/* update time to cancel out callback processing overhead */
1374	#if EV_USE_MONOTONIC
1375	if (expect_true (have_monotonic))
1376	time_update_monotonic (EV_A);	1535	time_update (EV_A_ 1e100);
1377	else
1378	#endif
1379	{
1380	ev_rt_now = ev_time ();
1381	mn_now = ev_rt_now;
1382	}
1383		1536
1384	block = MAX_BLOCKTIME;	1537	waittime = MAX_BLOCKTIME;
1385		1538
1386	if (timercnt)	1539	if (timercnt)
1387	{	1540	{
1388	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1541	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1389	if (block > to) block = to;	1542	if (waittime > to) waittime = to;
1390	}	1543	}
1391		1544
1392	#if EV_PERIODIC_ENABLE	1545	#if EV_PERIODIC_ENABLE
1393	if (periodiccnt)	1546	if (periodiccnt)
1394	{	1547	{
1395	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1548	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1396	if (block > to) block = to;	1549	if (waittime > to) waittime = to;
1397	}	1550	}
1398	#endif	1551	#endif
1399		1552
1400	if (expect_false (block < 0.)) block = 0.;	1553	if (expect_false (waittime < timeout_blocktime))
		1554	waittime = timeout_blocktime;
		1555
		1556	sleeptime = waittime - backend_fudge;
		1557
		1558	if (expect_true (sleeptime > io_blocktime))
		1559	sleeptime = io_blocktime;
		1560
		1561	if (sleeptime)
		1562	{
		1563	ev_sleep (sleeptime);
		1564	waittime -= sleeptime;
		1565	}
1401	}	1566	}
1402		1567
		1568	++loop_count;
1403	backend_poll (EV_A_ block);	1569	backend_poll (EV_A_ waittime);
		1570
		1571	/* update ev_rt_now, do magic */
		1572	time_update (EV_A_ waittime + sleeptime);
1404	}	1573	}
1405
1406	/* update ev_rt_now, do magic */
1407	time_update (EV_A);
1408		1574
1409	/* queue pending timers and reschedule them */	1575	/* queue pending timers and reschedule them */
1410	timers_reify (EV_A); /* relative timers called last */	1576	timers_reify (EV_A); /* relative timers called last */
1411	#if EV_PERIODIC_ENABLE	1577	#if EV_PERIODIC_ENABLE
1412	periodics_reify (EV_A); /* absolute timers called first */	1578	periodics_reify (EV_A); /* absolute timers called first */
1413	#endif	1579	#endif
1414		1580
		1581	#if EV_IDLE_ENABLE
1415	/* queue idle watchers unless other events are pending */	1582	/* queue idle watchers unless other events are pending */
1416	if (idlecnt && !any_pending (EV_A))	1583	idle_reify (EV_A);
1417	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1584	#endif
1418		1585
1419	/* queue check watchers, to be executed first */	1586	/* queue check watchers, to be executed first */
1420	if (expect_false (checkcnt))	1587	if (expect_false (checkcnt))
1421	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1588	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1422		1589
1423	call_pending (EV_A);	1590	call_pending (EV_A);
1424		1591
1425	if (expect_false (loop_done))
1426	break;
1427	}	1592	}
		1593	while (expect_true (activecnt && !loop_done));
1428		1594
1429	if (loop_done == EVUNLOOP_ONE)	1595	if (loop_done == EVUNLOOP_ONE)
1430	loop_done = EVUNLOOP_CANCEL;	1596	loop_done = EVUNLOOP_CANCEL;
1431	}	1597	}
1432		1598
…		…
1459	head = &(*head)->next;	1625	head = &(*head)->next;
1460	}	1626	}
1461	}	1627	}
1462		1628
1463	void inline_speed	1629	void inline_speed
1464	ev_clear_pending (EV_P_ W w)	1630	clear_pending (EV_P_ W w)
1465	{	1631	{
1466	if (w->pending)	1632	if (w->pending)
1467	{	1633	{
1468	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1634	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1469	w->pending = 0;	1635	w->pending = 0;
1470	}	1636	}
1471	}	1637	}
1472		1638
		1639	int
		1640	ev_clear_pending (EV_P_ void *w)
		1641	{
		1642	W w_ = (W)w;
		1643	int pending = w_->pending;
		1644
		1645	if (expect_true (pending))
		1646	{
		1647	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1648	w_->pending = 0;
		1649	p->w = 0;
		1650	return p->events;
		1651	}
		1652	else
		1653	return 0;
		1654	}
		1655
		1656	void inline_size
		1657	pri_adjust (EV_P_ W w)
		1658	{
		1659	int pri = w->priority;
		1660	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1661	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1662	w->priority = pri;
		1663	}
		1664
1473	void inline_speed	1665	void inline_speed
1474	ev_start (EV_P_ W w, int active)	1666	ev_start (EV_P_ W w, int active)
1475	{	1667	{
1476	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1668	pri_adjust (EV_A_ w);
1477	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1478
1479	w->active = active;	1669	w->active = active;
1480	ev_ref (EV_A);	1670	ev_ref (EV_A);
1481	}	1671	}
1482		1672
1483	void inline_size	1673	void inline_size
…		…
1487	w->active = 0;	1677	w->active = 0;
1488	}	1678	}
1489		1679
1490	/*****************************************************************************/	1680	/*****************************************************************************/
1491		1681
1492	void	1682	void noinline
1493	ev_io_start (EV_P_ ev_io *w)	1683	ev_io_start (EV_P_ ev_io *w)
1494	{	1684	{
1495	int fd = w->fd;	1685	int fd = w->fd;
1496		1686
1497	if (expect_false (ev_is_active (w)))	1687	if (expect_false (ev_is_active (w)))
…		…
1499		1689
1500	assert (("ev_io_start called with negative fd", fd >= 0));	1690	assert (("ev_io_start called with negative fd", fd >= 0));
1501		1691
1502	ev_start (EV_A_ (W)w, 1);	1692	ev_start (EV_A_ (W)w, 1);
1503	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1693	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1504	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1694	wlist_add (&anfds[fd].head, (WL)w);
1505		1695
1506	fd_change (EV_A_ fd);	1696	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1697	w->events &= ~EV_IOFDSET;
1507	}	1698	}
1508		1699
1509	void	1700	void noinline
1510	ev_io_stop (EV_P_ ev_io *w)	1701	ev_io_stop (EV_P_ ev_io *w)
1511	{	1702	{
1512	ev_clear_pending (EV_A_ (W)w);	1703	clear_pending (EV_A_ (W)w);
1513	if (expect_false (!ev_is_active (w)))	1704	if (expect_false (!ev_is_active (w)))
1514	return;	1705	return;
1515		1706
1516	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1707	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1517		1708
1518	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1709	wlist_del (&anfds[w->fd].head, (WL)w);
1519	ev_stop (EV_A_ (W)w);	1710	ev_stop (EV_A_ (W)w);
1520		1711
1521	fd_change (EV_A_ w->fd);	1712	fd_change (EV_A_ w->fd, 1);
1522	}	1713	}
1523		1714
1524	void	1715	void noinline
1525	ev_timer_start (EV_P_ ev_timer *w)	1716	ev_timer_start (EV_P_ ev_timer *w)
1526	{	1717	{
1527	if (expect_false (ev_is_active (w)))	1718	if (expect_false (ev_is_active (w)))
1528	return;	1719	return;
1529		1720
1530	((WT)w)->at += mn_now;	1721	((WT)w)->at += mn_now;
1531		1722
1532	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1723	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1533		1724
1534	ev_start (EV_A_ (W)w, ++timercnt);	1725	ev_start (EV_A_ (W)w, ++timercnt);
1535	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1726	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1536	timers [timercnt - 1] = w;	1727	timers [timercnt - 1] = (WT)w;
1537	upheap ((WT *)timers, timercnt - 1);	1728	upheap (timers, timercnt - 1);
1538		1729
1539	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1730	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1540	}	1731	}
1541		1732
1542	void	1733	void noinline
1543	ev_timer_stop (EV_P_ ev_timer *w)	1734	ev_timer_stop (EV_P_ ev_timer *w)
1544	{	1735	{
1545	ev_clear_pending (EV_A_ (W)w);	1736	clear_pending (EV_A_ (W)w);
1546	if (expect_false (!ev_is_active (w)))	1737	if (expect_false (!ev_is_active (w)))
1547	return;	1738	return;
1548		1739
1549	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1740	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1550		1741
1551	{	1742	{
1552	int active = ((W)w)->active;	1743	int active = ((W)w)->active;
1553		1744
1554	if (expect_true (--active < --timercnt))	1745	if (expect_true (--active < --timercnt))
1555	{	1746	{
1556	timers [active] = timers [timercnt];	1747	timers [active] = timers [timercnt];
1557	adjustheap ((WT *)timers, timercnt, active);	1748	adjustheap (timers, timercnt, active);
1558	}	1749	}
1559	}	1750	}
1560		1751
1561	((WT)w)->at -= mn_now;	1752	((WT)w)->at -= mn_now;
1562		1753
1563	ev_stop (EV_A_ (W)w);	1754	ev_stop (EV_A_ (W)w);
1564	}	1755	}
1565		1756
1566	void	1757	void noinline
1567	ev_timer_again (EV_P_ ev_timer *w)	1758	ev_timer_again (EV_P_ ev_timer *w)
1568	{	1759	{
1569	if (ev_is_active (w))	1760	if (ev_is_active (w))
1570	{	1761	{
1571	if (w->repeat)	1762	if (w->repeat)
1572	{	1763	{
1573	((WT)w)->at = mn_now + w->repeat;	1764	((WT)w)->at = mn_now + w->repeat;
1574	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1765	adjustheap (timers, timercnt, ((W)w)->active - 1);
1575	}	1766	}
1576	else	1767	else
1577	ev_timer_stop (EV_A_ w);	1768	ev_timer_stop (EV_A_ w);
1578	}	1769	}
1579	else if (w->repeat)	1770	else if (w->repeat)
…		…
1582	ev_timer_start (EV_A_ w);	1773	ev_timer_start (EV_A_ w);
1583	}	1774	}
1584	}	1775	}
1585		1776
1586	#if EV_PERIODIC_ENABLE	1777	#if EV_PERIODIC_ENABLE
1587	void	1778	void noinline
1588	ev_periodic_start (EV_P_ ev_periodic *w)	1779	ev_periodic_start (EV_P_ ev_periodic *w)
1589	{	1780	{
1590	if (expect_false (ev_is_active (w)))	1781	if (expect_false (ev_is_active (w)))
1591	return;	1782	return;
1592		1783
…		…
1594	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1785	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1595	else if (w->interval)	1786	else if (w->interval)
1596	{	1787	{
1597	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1788	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1598	/* this formula differs from the one in periodic_reify because we do not always round up */	1789	/* this formula differs from the one in periodic_reify because we do not always round up */
1599	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1790	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1600	}	1791	}
		1792	else
		1793	((WT)w)->at = w->offset;
1601		1794
1602	ev_start (EV_A_ (W)w, ++periodiccnt);	1795	ev_start (EV_A_ (W)w, ++periodiccnt);
1603	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1796	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1604	periodics [periodiccnt - 1] = w;	1797	periodics [periodiccnt - 1] = (WT)w;
1605	upheap ((WT *)periodics, periodiccnt - 1);	1798	upheap (periodics, periodiccnt - 1);
1606		1799
1607	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1800	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1608	}	1801	}
1609		1802
1610	void	1803	void noinline
1611	ev_periodic_stop (EV_P_ ev_periodic *w)	1804	ev_periodic_stop (EV_P_ ev_periodic *w)
1612	{	1805	{
1613	ev_clear_pending (EV_A_ (W)w);	1806	clear_pending (EV_A_ (W)w);
1614	if (expect_false (!ev_is_active (w)))	1807	if (expect_false (!ev_is_active (w)))
1615	return;	1808	return;
1616		1809
1617	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1810	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1618		1811
1619	{	1812	{
1620	int active = ((W)w)->active;	1813	int active = ((W)w)->active;
1621		1814
1622	if (expect_true (--active < --periodiccnt))	1815	if (expect_true (--active < --periodiccnt))
1623	{	1816	{
1624	periodics [active] = periodics [periodiccnt];	1817	periodics [active] = periodics [periodiccnt];
1625	adjustheap ((WT *)periodics, periodiccnt, active);	1818	adjustheap (periodics, periodiccnt, active);
1626	}	1819	}
1627	}	1820	}
1628		1821
1629	ev_stop (EV_A_ (W)w);	1822	ev_stop (EV_A_ (W)w);
1630	}	1823	}
1631		1824
1632	void	1825	void noinline
1633	ev_periodic_again (EV_P_ ev_periodic *w)	1826	ev_periodic_again (EV_P_ ev_periodic *w)
1634	{	1827	{
1635	/* TODO: use adjustheap and recalculation */	1828	/* TODO: use adjustheap and recalculation */
1636	ev_periodic_stop (EV_A_ w);	1829	ev_periodic_stop (EV_A_ w);
1637	ev_periodic_start (EV_A_ w);	1830	ev_periodic_start (EV_A_ w);
…		…
1640		1833
1641	#ifndef SA_RESTART	1834	#ifndef SA_RESTART
1642	# define SA_RESTART 0	1835	# define SA_RESTART 0
1643	#endif	1836	#endif
1644		1837
1645	void	1838	void noinline
1646	ev_signal_start (EV_P_ ev_signal *w)	1839	ev_signal_start (EV_P_ ev_signal *w)
1647	{	1840	{
1648	#if EV_MULTIPLICITY	1841	#if EV_MULTIPLICITY
1649	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1842	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1650	#endif	1843	#endif
1651	if (expect_false (ev_is_active (w)))	1844	if (expect_false (ev_is_active (w)))
1652	return;	1845	return;
1653		1846
1654	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1847	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1655		1848
		1849	{
		1850	#ifndef _WIN32
		1851	sigset_t full, prev;
		1852	sigfillset (&full);
		1853	sigprocmask (SIG_SETMASK, &full, &prev);
		1854	#endif
		1855
		1856	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1857
		1858	#ifndef _WIN32
		1859	sigprocmask (SIG_SETMASK, &prev, 0);
		1860	#endif
		1861	}
		1862
1656	ev_start (EV_A_ (W)w, 1);	1863	ev_start (EV_A_ (W)w, 1);
1657	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1658	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1864	wlist_add (&signals [w->signum - 1].head, (WL)w);
1659		1865
1660	if (!((WL)w)->next)	1866	if (!((WL)w)->next)
1661	{	1867	{
1662	#if _WIN32	1868	#if _WIN32
1663	signal (w->signum, sighandler);	1869	signal (w->signum, sighandler);
…		…
1669	sigaction (w->signum, &sa, 0);	1875	sigaction (w->signum, &sa, 0);
1670	#endif	1876	#endif
1671	}	1877	}
1672	}	1878	}
1673		1879
1674	void	1880	void noinline
1675	ev_signal_stop (EV_P_ ev_signal *w)	1881	ev_signal_stop (EV_P_ ev_signal *w)
1676	{	1882	{
1677	ev_clear_pending (EV_A_ (W)w);	1883	clear_pending (EV_A_ (W)w);
1678	if (expect_false (!ev_is_active (w)))	1884	if (expect_false (!ev_is_active (w)))
1679	return;	1885	return;
1680		1886
1681	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1887	wlist_del (&signals [w->signum - 1].head, (WL)w);
1682	ev_stop (EV_A_ (W)w);	1888	ev_stop (EV_A_ (W)w);
1683		1889
1684	if (!signals [w->signum - 1].head)	1890	if (!signals [w->signum - 1].head)
1685	signal (w->signum, SIG_DFL);	1891	signal (w->signum, SIG_DFL);
1686	}	1892	}
…		…
1693	#endif	1899	#endif
1694	if (expect_false (ev_is_active (w)))	1900	if (expect_false (ev_is_active (w)))
1695	return;	1901	return;
1696		1902
1697	ev_start (EV_A_ (W)w, 1);	1903	ev_start (EV_A_ (W)w, 1);
1698	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1904	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1699	}	1905	}
1700		1906
1701	void	1907	void
1702	ev_child_stop (EV_P_ ev_child *w)	1908	ev_child_stop (EV_P_ ev_child *w)
1703	{	1909	{
1704	ev_clear_pending (EV_A_ (W)w);	1910	clear_pending (EV_A_ (W)w);
1705	if (expect_false (!ev_is_active (w)))	1911	if (expect_false (!ev_is_active (w)))
1706	return;	1912	return;
1707		1913
1708	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1914	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1709	ev_stop (EV_A_ (W)w);	1915	ev_stop (EV_A_ (W)w);
1710	}	1916	}
1711		1917
1712	#if EV_STAT_ENABLE	1918	#if EV_STAT_ENABLE
1713		1919
…		…
1945	}	2151	}
1946		2152
1947	void	2153	void
1948	ev_stat_stop (EV_P_ ev_stat *w)	2154	ev_stat_stop (EV_P_ ev_stat *w)
1949	{	2155	{
1950	ev_clear_pending (EV_A_ (W)w);	2156	clear_pending (EV_A_ (W)w);
1951	if (expect_false (!ev_is_active (w)))	2157	if (expect_false (!ev_is_active (w)))
1952	return;	2158	return;
1953		2159
1954	#if EV_USE_INOTIFY	2160	#if EV_USE_INOTIFY
1955	infy_del (EV_A_ w);	2161	infy_del (EV_A_ w);
…		…
1958		2164
1959	ev_stop (EV_A_ (W)w);	2165	ev_stop (EV_A_ (W)w);
1960	}	2166	}
1961	#endif	2167	#endif
1962		2168
		2169	#if EV_IDLE_ENABLE
1963	void	2170	void
1964	ev_idle_start (EV_P_ ev_idle *w)	2171	ev_idle_start (EV_P_ ev_idle *w)
1965	{	2172	{
1966	if (expect_false (ev_is_active (w)))	2173	if (expect_false (ev_is_active (w)))
1967	return;	2174	return;
1968		2175
		2176	pri_adjust (EV_A_ (W)w);
		2177
		2178	{
		2179	int active = ++idlecnt [ABSPRI (w)];
		2180
		2181	++idleall;
1969	ev_start (EV_A_ (W)w, ++idlecnt);	2182	ev_start (EV_A_ (W)w, active);
		2183
1970	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2184	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1971	idles [idlecnt - 1] = w;	2185	idles [ABSPRI (w)][active - 1] = w;
		2186	}
1972	}	2187	}
1973		2188
1974	void	2189	void
1975	ev_idle_stop (EV_P_ ev_idle *w)	2190	ev_idle_stop (EV_P_ ev_idle *w)
1976	{	2191	{
1977	ev_clear_pending (EV_A_ (W)w);	2192	clear_pending (EV_A_ (W)w);
1978	if (expect_false (!ev_is_active (w)))	2193	if (expect_false (!ev_is_active (w)))
1979	return;	2194	return;
1980		2195
1981	{	2196	{
1982	int active = ((W)w)->active;	2197	int active = ((W)w)->active;
1983	idles [active - 1] = idles [--idlecnt];	2198
		2199	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1984	((W)idles [active - 1])->active = active;	2200	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2201
		2202	ev_stop (EV_A_ (W)w);
		2203	--idleall;
1985	}	2204	}
1986
1987	ev_stop (EV_A_ (W)w);
1988	}	2205	}
		2206	#endif
1989		2207
1990	void	2208	void
1991	ev_prepare_start (EV_P_ ev_prepare *w)	2209	ev_prepare_start (EV_P_ ev_prepare *w)
1992	{	2210	{
1993	if (expect_false (ev_is_active (w)))	2211	if (expect_false (ev_is_active (w)))
…		…
1999	}	2217	}
2000		2218
2001	void	2219	void
2002	ev_prepare_stop (EV_P_ ev_prepare *w)	2220	ev_prepare_stop (EV_P_ ev_prepare *w)
2003	{	2221	{
2004	ev_clear_pending (EV_A_ (W)w);	2222	clear_pending (EV_A_ (W)w);
2005	if (expect_false (!ev_is_active (w)))	2223	if (expect_false (!ev_is_active (w)))
2006	return;	2224	return;
2007		2225
2008	{	2226	{
2009	int active = ((W)w)->active;	2227	int active = ((W)w)->active;
…		…
2026	}	2244	}
2027		2245
2028	void	2246	void
2029	ev_check_stop (EV_P_ ev_check *w)	2247	ev_check_stop (EV_P_ ev_check *w)
2030	{	2248	{
2031	ev_clear_pending (EV_A_ (W)w);	2249	clear_pending (EV_A_ (W)w);
2032	if (expect_false (!ev_is_active (w)))	2250	if (expect_false (!ev_is_active (w)))
2033	return;	2251	return;
2034		2252
2035	{	2253	{
2036	int active = ((W)w)->active;	2254	int active = ((W)w)->active;
…		…
2043		2261
2044	#if EV_EMBED_ENABLE	2262	#if EV_EMBED_ENABLE
2045	void noinline	2263	void noinline
2046	ev_embed_sweep (EV_P_ ev_embed *w)	2264	ev_embed_sweep (EV_P_ ev_embed *w)
2047	{	2265	{
2048	ev_loop (w->loop, EVLOOP_NONBLOCK);	2266	ev_loop (w->other, EVLOOP_NONBLOCK);
2049	}	2267	}
2050		2268
2051	static void	2269	static void
2052	embed_cb (EV_P_ ev_io *io, int revents)	2270	embed_io_cb (EV_P_ ev_io *io, int revents)
2053	{	2271	{
2054	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2272	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2055		2273
2056	if (ev_cb (w))	2274	if (ev_cb (w))
2057	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2275	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2058	else	2276	else
2059	ev_embed_sweep (loop, w);	2277	ev_loop (w->other, EVLOOP_NONBLOCK);
2060	}	2278	}
		2279
		2280	static void
		2281	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2282	{
		2283	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2284
		2285	{
		2286	struct ev_loop *loop = w->other;
		2287
		2288	while (fdchangecnt)
		2289	{
		2290	fd_reify (EV_A);
		2291	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2292	}
		2293	}
		2294	}
		2295
		2296	#if 0
		2297	static void
		2298	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2299	{
		2300	ev_idle_stop (EV_A_ idle);
		2301	}
		2302	#endif
2061		2303
2062	void	2304	void
2063	ev_embed_start (EV_P_ ev_embed *w)	2305	ev_embed_start (EV_P_ ev_embed *w)
2064	{	2306	{
2065	if (expect_false (ev_is_active (w)))	2307	if (expect_false (ev_is_active (w)))
2066	return;	2308	return;
2067		2309
2068	{	2310	{
2069	struct ev_loop *loop = w->loop;	2311	struct ev_loop *loop = w->other;
2070	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2312	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2071	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2313	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2072	}	2314	}
2073		2315
2074	ev_set_priority (&w->io, ev_priority (w));	2316	ev_set_priority (&w->io, ev_priority (w));
2075	ev_io_start (EV_A_ &w->io);	2317	ev_io_start (EV_A_ &w->io);
2076		2318
		2319	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2320	ev_set_priority (&w->prepare, EV_MINPRI);
		2321	ev_prepare_start (EV_A_ &w->prepare);
		2322
		2323	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2324
2077	ev_start (EV_A_ (W)w, 1);	2325	ev_start (EV_A_ (W)w, 1);
2078	}	2326	}
2079		2327
2080	void	2328	void
2081	ev_embed_stop (EV_P_ ev_embed *w)	2329	ev_embed_stop (EV_P_ ev_embed *w)
2082	{	2330	{
2083	ev_clear_pending (EV_A_ (W)w);	2331	clear_pending (EV_A_ (W)w);
2084	if (expect_false (!ev_is_active (w)))	2332	if (expect_false (!ev_is_active (w)))
2085	return;	2333	return;
2086		2334
2087	ev_io_stop (EV_A_ &w->io);	2335	ev_io_stop (EV_A_ &w->io);
		2336	ev_prepare_stop (EV_A_ &w->prepare);
2088		2337
2089	ev_stop (EV_A_ (W)w);	2338	ev_stop (EV_A_ (W)w);
2090	}	2339	}
2091	#endif	2340	#endif
2092		2341
…		…
2103	}	2352	}
2104		2353
2105	void	2354	void
2106	ev_fork_stop (EV_P_ ev_fork *w)	2355	ev_fork_stop (EV_P_ ev_fork *w)
2107	{	2356	{
2108	ev_clear_pending (EV_A_ (W)w);	2357	clear_pending (EV_A_ (W)w);
2109	if (expect_false (!ev_is_active (w)))	2358	if (expect_false (!ev_is_active (w)))
2110	return;	2359	return;
2111		2360
2112	{	2361	{
2113	int active = ((W)w)->active;	2362	int active = ((W)w)->active;
…		…
2181	ev_timer_set (&once->to, timeout, 0.);	2430	ev_timer_set (&once->to, timeout, 0.);
2182	ev_timer_start (EV_A_ &once->to);	2431	ev_timer_start (EV_A_ &once->to);
2183	}	2432	}
2184	}	2433	}
2185		2434
		2435	#if EV_MULTIPLICITY
		2436	#include "ev_wrap.h"
		2437	#endif
		2438
2186	#ifdef __cplusplus	2439	#ifdef __cplusplus
2187	}	2440	}
2188	#endif	2441	#endif
2189		2442

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Comparing libev/ev.c (file contents): Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC vs. Revision 1.198 by root, Sun Dec 23 04:45:51 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.157 by root, Wed Nov 28 20:58:32 2007 UTC vs.
Revision 1.198 by root, Sun Dec 23 04:45:51 2007 UTC