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

Comparing libev/ev.c (file contents):
Revision 1.163 by root, Wed Dec 5 13:54:36 2007 UTC vs.
Revision 1.193 by root, Sat Dec 22 05:47:58 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;
…		…
396	{	426	{
397	return ev_rt_now;	427	return ev_rt_now;
398	}	428	}
399	#endif	429	#endif
400		430
		431	void
		432	ev_sleep (ev_tstamp delay)
		433	{
		434	if (delay > 0.)
		435	{
		436	#if EV_USE_NANOSLEEP
		437	struct timespec ts;
		438
		439	ts.tv_sec = (time_t)delay;
		440	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		441
		442	nanosleep (&ts, 0);
		443	#elif defined(_WIN32)
		444	Sleep (delay * 1e3);
		445	#else
		446	struct timeval tv;
		447
		448	tv.tv_sec = (time_t)delay;
		449	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		450
		451	select (0, 0, 0, 0, &tv);
		452	#endif
		453	}
		454	}
		455
		456	/*****************************************************************************/
		457
401	int inline_size	458	int inline_size
402	array_nextsize (int elem, int cur, int cnt)	459	array_nextsize (int elem, int cur, int cnt)
403	{	460	{
404	int ncur = cur + 1;	461	int ncur = cur + 1;
405		462
…		…
417	}	474	}
418		475
419	return ncur;	476	return ncur;
420	}	477	}
421		478
422	inline_speed void *	479	static noinline void *
423	array_realloc (int elem, void base, int cur, int cnt)	480	array_realloc (int elem, void base, int cur, int cnt)
424	{	481	{
425	cur = array_nextsize (elem, cur, cnt);	482	cur = array_nextsize (elem, cur, cnt);
426	return ev_realloc (base, elem * *cur);	483	return ev_realloc (base, elem * *cur);
427	}	484	}
…		…
452		509
453	void noinline	510	void noinline
454	ev_feed_event (EV_P_ void *w, int revents)	511	ev_feed_event (EV_P_ void *w, int revents)
455	{	512	{
456	W w_ = (W)w;	513	W w_ = (W)w;
		514	int pri = ABSPRI (w_);
457		515
458	if (expect_false (w_->pending))	516	if (expect_false (w_->pending))
		517	pendings [pri][w_->pending - 1].events \|= revents;
		518	else
459	{	519	{
		520	w_->pending = ++pendingcnt [pri];
		521	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		522	pendings [pri][w_->pending - 1].w = w_;
460	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	523	pendings [pri][w_->pending - 1].events = revents;
461	return;
462	}	524	}
463
464	w_->pending = ++pendingcnt [ABSPRI (w_)];
465	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
466	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
467	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
468	}	525	}
469		526
470	void inline_size	527	void inline_speed
471	queue_events (EV_P_ W *events, int eventcnt, int type)	528	queue_events (EV_P_ W *events, int eventcnt, int type)
472	{	529	{
473	int i;	530	int i;
474		531
475	for (i = 0; i < eventcnt; ++i)	532	for (i = 0; i < eventcnt; ++i)
…		…
507	}	564	}
508		565
509	void	566	void
510	ev_feed_fd_event (EV_P_ int fd, int revents)	567	ev_feed_fd_event (EV_P_ int fd, int revents)
511	{	568	{
		569	if (fd >= 0 && fd < anfdmax)
512	fd_event (EV_A_ fd, revents);	570	fd_event (EV_A_ fd, revents);
513	}	571	}
514		572
515	void inline_size	573	void inline_size
516	fd_reify (EV_P)	574	fd_reify (EV_P)
517	{	575	{
…		…
521	{	579	{
522	int fd = fdchanges [i];	580	int fd = fdchanges [i];
523	ANFD *anfd = anfds + fd;	581	ANFD *anfd = anfds + fd;
524	ev_io *w;	582	ev_io *w;
525		583
526	int events = 0;	584	unsigned char events = 0;
527		585
528	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	586	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
529	events \|= w->events;	587	events \|= (unsigned char)w->events;
530		588
531	#if EV_SELECT_IS_WINSOCKET	589	#if EV_SELECT_IS_WINSOCKET
532	if (events)	590	if (events)
533	{	591	{
534	unsigned long argp;	592	unsigned long argp;
535	anfd->handle = _get_osfhandle (fd);	593	anfd->handle = _get_osfhandle (fd);
536	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	594	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
537	}	595	}
538	#endif	596	#endif
539		597
		598	{
		599	unsigned char o_events = anfd->events;
		600	unsigned char o_reify = anfd->reify;
		601
540	anfd->reify = 0;	602	anfd->reify = 0;
541
542	backend_modify (EV_A_ fd, anfd->events, events);
543	anfd->events = events;	603	anfd->events = events;
		604
		605	if (o_events != events \|\| o_reify & EV_IOFDSET)
		606	backend_modify (EV_A_ fd, o_events, events);
		607	}
544	}	608	}
545		609
546	fdchangecnt = 0;	610	fdchangecnt = 0;
547	}	611	}
548		612
549	void inline_size	613	void inline_size
550	fd_change (EV_P_ int fd)	614	fd_change (EV_P_ int fd, int flags)
551	{	615	{
552	if (expect_false (anfds [fd].reify))	616	unsigned char reify = anfds [fd].reify;
553	return;
554
555	anfds [fd].reify = 1;	617	anfds [fd].reify \|= flags;
556		618
		619	if (expect_true (!reify))
		620	{
557	++fdchangecnt;	621	++fdchangecnt;
558	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	622	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
559	fdchanges [fdchangecnt - 1] = fd;	623	fdchanges [fdchangecnt - 1] = fd;
		624	}
560	}	625	}
561		626
562	void inline_speed	627	void inline_speed
563	fd_kill (EV_P_ int fd)	628	fd_kill (EV_P_ int fd)
564	{	629	{
…		…
615		680
616	for (fd = 0; fd < anfdmax; ++fd)	681	for (fd = 0; fd < anfdmax; ++fd)
617	if (anfds [fd].events)	682	if (anfds [fd].events)
618	{	683	{
619	anfds [fd].events = 0;	684	anfds [fd].events = 0;
620	fd_change (EV_A_ fd);	685	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
621	}	686	}
622	}	687	}
623		688
624	/*****************************************************************************/	689	/*****************************************************************************/
625		690
626	void inline_speed	691	void inline_speed
627	upheap (WT *heap, int k)	692	upheap (WT *heap, int k)
628	{	693	{
629	WT w = heap [k];	694	WT w = heap [k];
630		695
631	while (k && heap [k >> 1]->at > w->at)	696	while (k)
632	{	697	{
		698	int p = (k - 1) >> 1;
		699
		700	if (heap [p]->at <= w->at)
		701	break;
		702
633	heap [k] = heap [k >> 1];	703	heap [k] = heap [p];
634	((W)heap [k])->active = k + 1;	704	((W)heap [k])->active = k + 1;
635	k >>= 1;	705	k = p;
636	}	706	}
637		707
638	heap [k] = w;	708	heap [k] = w;
639	((W)heap [k])->active = k + 1;	709	((W)heap [k])->active = k + 1;
640
641	}	710	}
642		711
643	void inline_speed	712	void inline_speed
644	downheap (WT *heap, int N, int k)	713	downheap (WT *heap, int N, int k)
645	{	714	{
646	WT w = heap [k];	715	WT w = heap [k];
647		716
648	while (k < (N >> 1))	717	for (;;)
649	{	718	{
650	int j = k << 1;	719	int c = (k << 1) + 1;
651		720
652	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	721	if (c >= N)
653	++j;
654
655	if (w->at <= heap [j]->at)
656	break;	722	break;
657		723
		724	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		725	? 1 : 0;
		726
		727	if (w->at <= heap [c]->at)
		728	break;
		729
658	heap [k] = heap [j];	730	heap [k] = heap [c];
659	((W)heap [k])->active = k + 1;	731	((W)heap [k])->active = k + 1;
		732
660	k = j;	733	k = c;
661	}	734	}
662		735
663	heap [k] = w;	736	heap [k] = w;
664	((W)heap [k])->active = k + 1;	737	((W)heap [k])->active = k + 1;
665	}	738	}
…		…
747	for (signum = signalmax; signum--; )	820	for (signum = signalmax; signum--; )
748	if (signals [signum].gotsig)	821	if (signals [signum].gotsig)
749	ev_feed_signal_event (EV_A_ signum + 1);	822	ev_feed_signal_event (EV_A_ signum + 1);
750	}	823	}
751		824
752	void inline_size	825	void inline_speed
753	fd_intern (int fd)	826	fd_intern (int fd)
754	{	827	{
755	#ifdef _WIN32	828	#ifdef _WIN32
756	int arg = 1;	829	int arg = 1;
757	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	830	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
772	ev_unref (EV_A); /* child watcher should not keep loop alive */	845	ev_unref (EV_A); /* child watcher should not keep loop alive */
773	}	846	}
774		847
775	/*****************************************************************************/	848	/*****************************************************************************/
776		849
777	static ev_child *childs [EV_PID_HASHSIZE];	850	static WL childs [EV_PID_HASHSIZE];
778		851
779	#ifndef _WIN32	852	#ifndef _WIN32
780		853
781	static ev_signal childev;	854	static ev_signal childev;
782		855
…		…
786	ev_child *w;	859	ev_child *w;
787		860
788	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	861	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
789	if (w->pid == pid \|\| !w->pid)	862	if (w->pid == pid \|\| !w->pid)
790	{	863	{
791	ev_priority (w) = ev_priority (sw); /* need to do it now */	864	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
792	w->rpid = pid;	865	w->rpid = pid;
793	w->rstatus = status;	866	w->rstatus = status;
794	ev_feed_event (EV_A_ (W)w, EV_CHILD);	867	ev_feed_event (EV_A_ (W)w, EV_CHILD);
795	}	868	}
796	}	869	}
797		870
798	#ifndef WCONTINUED	871	#ifndef WCONTINUED
…		…
897	}	970	}
898		971
899	unsigned int	972	unsigned int
900	ev_embeddable_backends (void)	973	ev_embeddable_backends (void)
901	{	974	{
		975	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
902	return EVBACKEND_EPOLL	976	return EVBACKEND_KQUEUE
903	\| EVBACKEND_KQUEUE
904	\| EVBACKEND_PORT;	977	\| EVBACKEND_PORT;
905	}	978	}
906		979
907	unsigned int	980	unsigned int
908	ev_backend (EV_P)	981	ev_backend (EV_P)
…		…
912		985
913	unsigned int	986	unsigned int
914	ev_loop_count (EV_P)	987	ev_loop_count (EV_P)
915	{	988	{
916	return loop_count;	989	return loop_count;
		990	}
		991
		992	void
		993	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		994	{
		995	io_blocktime = interval;
		996	}
		997
		998	void
		999	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1000	{
		1001	timeout_blocktime = interval;
917	}	1002	}
918		1003
919	static void noinline	1004	static void noinline
920	loop_init (EV_P_ unsigned int flags)	1005	loop_init (EV_P_ unsigned int flags)
921	{	1006	{
…		…
932	ev_rt_now = ev_time ();	1017	ev_rt_now = ev_time ();
933	mn_now = get_clock ();	1018	mn_now = get_clock ();
934	now_floor = mn_now;	1019	now_floor = mn_now;
935	rtmn_diff = ev_rt_now - mn_now;	1020	rtmn_diff = ev_rt_now - mn_now;
936		1021
		1022	io_blocktime = 0.;
		1023	timeout_blocktime = 0.;
		1024
937	/* pid check not overridable via env */	1025	/* pid check not overridable via env */
938	#ifndef _WIN32	1026	#ifndef _WIN32
939	if (flags & EVFLAG_FORKCHECK)	1027	if (flags & EVFLAG_FORKCHECK)
940	curpid = getpid ();	1028	curpid = getpid ();
941	#endif	1029	#endif
…		…
1003	#if EV_USE_SELECT	1091	#if EV_USE_SELECT
1004	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1092	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
1005	#endif	1093	#endif
1006		1094
1007	for (i = NUMPRI; i--; )	1095	for (i = NUMPRI; i--; )
		1096	{
1008	array_free (pending, [i]);	1097	array_free (pending, [i]);
		1098	#if EV_IDLE_ENABLE
		1099	array_free (idle, [i]);
		1100	#endif
		1101	}
		1102
		1103	ev_free (anfds); anfdmax = 0;
1009		1104
1010	/* have to use the microsoft-never-gets-it-right macro */	1105	/* have to use the microsoft-never-gets-it-right macro */
1011	array_free (fdchange, EMPTY0);	1106	array_free (fdchange, EMPTY);
1012	array_free (timer, EMPTY0);	1107	array_free (timer, EMPTY);
1013	#if EV_PERIODIC_ENABLE	1108	#if EV_PERIODIC_ENABLE
1014	array_free (periodic, EMPTY0);	1109	array_free (periodic, EMPTY);
1015	#endif	1110	#endif
		1111	#if EV_FORK_ENABLE
1016	array_free (idle, EMPTY0);	1112	array_free (fork, EMPTY);
		1113	#endif
1017	array_free (prepare, EMPTY0);	1114	array_free (prepare, EMPTY);
1018	array_free (check, EMPTY0);	1115	array_free (check, EMPTY);
1019		1116
1020	backend = 0;	1117	backend = 0;
1021	}	1118	}
1022		1119
1023	void inline_size infy_fork (EV_P);	1120	void inline_size infy_fork (EV_P);
…		…
1159	postfork = 1;	1256	postfork = 1;
1160	}	1257	}
1161		1258
1162	/*****************************************************************************/	1259	/*****************************************************************************/
1163		1260
1164	int inline_size	1261	void
1165	any_pending (EV_P)	1262	ev_invoke (EV_P_ void *w, int revents)
1166	{	1263	{
1167	int pri;	1264	EV_CB_INVOKE ((W)w, revents);
1168
1169	for (pri = NUMPRI; pri--; )
1170	if (pendingcnt [pri])
1171	return 1;
1172
1173	return 0;
1174	}	1265	}
1175		1266
1176	void inline_speed	1267	void inline_speed
1177	call_pending (EV_P)	1268	call_pending (EV_P)
1178	{	1269	{
…		…
1196	void inline_size	1287	void inline_size
1197	timers_reify (EV_P)	1288	timers_reify (EV_P)
1198	{	1289	{
1199	while (timercnt && ((WT)timers [0])->at <= mn_now)	1290	while (timercnt && ((WT)timers [0])->at <= mn_now)
1200	{	1291	{
1201	ev_timer *w = timers [0];	1292	ev_timer w = (ev_timer )timers [0];
1202		1293
1203	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1294	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1204		1295
1205	/* first reschedule or stop timer */	1296	/* first reschedule or stop timer */
1206	if (w->repeat)	1297	if (w->repeat)
…		…
1209		1300
1210	((WT)w)->at += w->repeat;	1301	((WT)w)->at += w->repeat;
1211	if (((WT)w)->at < mn_now)	1302	if (((WT)w)->at < mn_now)
1212	((WT)w)->at = mn_now;	1303	((WT)w)->at = mn_now;
1213		1304
1214	downheap ((WT *)timers, timercnt, 0);	1305	downheap (timers, timercnt, 0);
1215	}	1306	}
1216	else	1307	else
1217	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1308	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1218		1309
1219	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1310	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1224	void inline_size	1315	void inline_size
1225	periodics_reify (EV_P)	1316	periodics_reify (EV_P)
1226	{	1317	{
1227	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1318	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1228	{	1319	{
1229	ev_periodic *w = periodics [0];	1320	ev_periodic w = (ev_periodic )periodics [0];
1230		1321
1231	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1322	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1232		1323
1233	/* first reschedule or stop timer */	1324	/* first reschedule or stop timer */
1234	if (w->reschedule_cb)	1325	if (w->reschedule_cb)
1235	{	1326	{
1236	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1327	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1237	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1328	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1238	downheap ((WT *)periodics, periodiccnt, 0);	1329	downheap (periodics, periodiccnt, 0);
1239	}	1330	}
1240	else if (w->interval)	1331	else if (w->interval)
1241	{	1332	{
1242	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1333	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1334	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1243	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1335	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1244	downheap ((WT *)periodics, periodiccnt, 0);	1336	downheap (periodics, periodiccnt, 0);
1245	}	1337	}
1246	else	1338	else
1247	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1339	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1248		1340
1249	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1341	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1256	int i;	1348	int i;
1257		1349
1258	/* adjust periodics after time jump */	1350	/* adjust periodics after time jump */
1259	for (i = 0; i < periodiccnt; ++i)	1351	for (i = 0; i < periodiccnt; ++i)
1260	{	1352	{
1261	ev_periodic *w = periodics [i];	1353	ev_periodic w = (ev_periodic )periodics [i];
1262		1354
1263	if (w->reschedule_cb)	1355	if (w->reschedule_cb)
1264	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1356	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1265	else if (w->interval)	1357	else if (w->interval)
1266	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1358	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1267	}	1359	}
1268		1360
1269	/* now rebuild the heap */	1361	/* now rebuild the heap */
1270	for (i = periodiccnt >> 1; i--; )	1362	for (i = periodiccnt >> 1; i--; )
1271	downheap ((WT *)periodics, periodiccnt, i);	1363	downheap (periodics, periodiccnt, i);
1272	}	1364	}
1273	#endif	1365	#endif
1274		1366
		1367	#if EV_IDLE_ENABLE
1275	int inline_size	1368	void inline_size
1276	time_update_monotonic (EV_P)	1369	idle_reify (EV_P)
1277	{	1370	{
		1371	if (expect_false (idleall))
		1372	{
		1373	int pri;
		1374
		1375	for (pri = NUMPRI; pri--; )
		1376	{
		1377	if (pendingcnt [pri])
		1378	break;
		1379
		1380	if (idlecnt [pri])
		1381	{
		1382	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1383	break;
		1384	}
		1385	}
		1386	}
		1387	}
		1388	#endif
		1389
		1390	void inline_speed
		1391	time_update (EV_P_ ev_tstamp max_block)
		1392	{
		1393	int i;
		1394
		1395	#if EV_USE_MONOTONIC
		1396	if (expect_true (have_monotonic))
		1397	{
		1398	ev_tstamp odiff = rtmn_diff;
		1399
1278	mn_now = get_clock ();	1400	mn_now = get_clock ();
1279		1401
		1402	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1403	/* interpolate in the meantime */
1280	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1404	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1281	{	1405	{
1282	ev_rt_now = rtmn_diff + mn_now;	1406	ev_rt_now = rtmn_diff + mn_now;
1283	return 0;	1407	return;
1284	}	1408	}
1285	else	1409
1286	{
1287	now_floor = mn_now;	1410	now_floor = mn_now;
1288	ev_rt_now = ev_time ();	1411	ev_rt_now = ev_time ();
1289	return 1;
1290	}
1291	}
1292		1412
1293	void inline_size	1413	/* loop a few times, before making important decisions.
1294	time_update (EV_P)	1414	* on the choice of "4": one iteration isn't enough,
1295	{	1415	* in case we get preempted during the calls to
1296	int i;	1416	* ev_time and get_clock. a second call is almost guaranteed
1297		1417	* to succeed in that case, though. and looping a few more times
1298	#if EV_USE_MONOTONIC	1418	* doesn't hurt either as we only do this on time-jumps or
1299	if (expect_true (have_monotonic))	1419	* in the unlikely event of having been preempted here.
1300	{	1420	*/
1301	if (time_update_monotonic (EV_A))	1421	for (i = 4; --i; )
1302	{	1422	{
1303	ev_tstamp odiff = rtmn_diff;
1304
1305	/* loop a few times, before making important decisions.
1306	* on the choice of "4": one iteration isn't enough,
1307	* in case we get preempted during the calls to
1308	* ev_time and get_clock. a second call is almost guaranteed
1309	* to succeed in that case, though. and looping a few more times
1310	* doesn't hurt either as we only do this on time-jumps or
1311	* in the unlikely event of having been preempted here.
1312	*/
1313	for (i = 4; --i; )
1314	{
1315	rtmn_diff = ev_rt_now - mn_now;	1423	rtmn_diff = ev_rt_now - mn_now;
1316		1424
1317	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1425	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1318	return; /* all is well */	1426	return; /* all is well */
1319		1427
1320	ev_rt_now = ev_time ();	1428	ev_rt_now = ev_time ();
1321	mn_now = get_clock ();	1429	mn_now = get_clock ();
1322	now_floor = mn_now;	1430	now_floor = mn_now;
1323	}	1431	}
1324		1432
1325	# if EV_PERIODIC_ENABLE	1433	# if EV_PERIODIC_ENABLE
1326	periodics_reschedule (EV_A);	1434	periodics_reschedule (EV_A);
1327	# endif	1435	# endif
1328	/* no timer adjustment, as the monotonic clock doesn't jump */	1436	/* no timer adjustment, as the monotonic clock doesn't jump */
1329	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1437	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1330	}
1331	}	1438	}
1332	else	1439	else
1333	#endif	1440	#endif
1334	{	1441	{
1335	ev_rt_now = ev_time ();	1442	ev_rt_now = ev_time ();
1336		1443
1337	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1444	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1338	{	1445	{
1339	#if EV_PERIODIC_ENABLE	1446	#if EV_PERIODIC_ENABLE
1340	periodics_reschedule (EV_A);	1447	periodics_reschedule (EV_A);
1341	#endif	1448	#endif
1342
1343	/* adjust timers. this is easy, as the offset is the same for all of them */	1449	/* adjust timers. this is easy, as the offset is the same for all of them */
1344	for (i = 0; i < timercnt; ++i)	1450	for (i = 0; i < timercnt; ++i)
1345	((WT)timers [i])->at += ev_rt_now - mn_now;	1451	((WT)timers [i])->at += ev_rt_now - mn_now;
1346	}	1452	}
1347		1453
…		…
1391	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1497	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1392	call_pending (EV_A);	1498	call_pending (EV_A);
1393	}	1499	}
1394	#endif	1500	#endif
1395		1501
1396	/* queue check watchers (and execute them) */	1502	/* queue prepare watchers (and execute them) */
1397	if (expect_false (preparecnt))	1503	if (expect_false (preparecnt))
1398	{	1504	{
1399	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1505	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1400	call_pending (EV_A);	1506	call_pending (EV_A);
1401	}	1507	}
…		…
1410	/* update fd-related kernel structures */	1516	/* update fd-related kernel structures */
1411	fd_reify (EV_A);	1517	fd_reify (EV_A);
1412		1518
1413	/* calculate blocking time */	1519	/* calculate blocking time */
1414	{	1520	{
1415	ev_tstamp block;	1521	ev_tstamp waittime = 0.;
		1522	ev_tstamp sleeptime = 0.;
1416		1523
1417	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idlecnt \|\| !activecnt))	1524	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1418	block = 0.; /* do not block at all */
1419	else
1420	{	1525	{
1421	/* update time to cancel out callback processing overhead */	1526	/* update time to cancel out callback processing overhead */
1422	#if EV_USE_MONOTONIC
1423	if (expect_true (have_monotonic))
1424	time_update_monotonic (EV_A);	1527	time_update (EV_A_ 1e100);
1425	else
1426	#endif
1427	{
1428	ev_rt_now = ev_time ();
1429	mn_now = ev_rt_now;
1430	}
1431		1528
1432	block = MAX_BLOCKTIME;	1529	waittime = MAX_BLOCKTIME;
1433		1530
1434	if (timercnt)	1531	if (timercnt)
1435	{	1532	{
1436	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1533	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1437	if (block > to) block = to;	1534	if (waittime > to) waittime = to;
1438	}	1535	}
1439		1536
1440	#if EV_PERIODIC_ENABLE	1537	#if EV_PERIODIC_ENABLE
1441	if (periodiccnt)	1538	if (periodiccnt)
1442	{	1539	{
1443	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1540	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1444	if (block > to) block = to;	1541	if (waittime > to) waittime = to;
1445	}	1542	}
1446	#endif	1543	#endif
1447		1544
1448	if (expect_false (block < 0.)) block = 0.;	1545	if (expect_false (waittime < timeout_blocktime))
		1546	waittime = timeout_blocktime;
		1547
		1548	sleeptime = waittime - backend_fudge;
		1549
		1550	if (expect_true (sleeptime > io_blocktime))
		1551	sleeptime = io_blocktime;
		1552
		1553	if (sleeptime)
		1554	{
		1555	ev_sleep (sleeptime);
		1556	waittime -= sleeptime;
		1557	}
1449	}	1558	}
1450		1559
1451	++loop_count;	1560	++loop_count;
1452	backend_poll (EV_A_ block);	1561	backend_poll (EV_A_ waittime);
		1562
		1563	/* update ev_rt_now, do magic */
		1564	time_update (EV_A_ waittime + sleeptime);
1453	}	1565	}
1454
1455	/* update ev_rt_now, do magic */
1456	time_update (EV_A);
1457		1566
1458	/* queue pending timers and reschedule them */	1567	/* queue pending timers and reschedule them */
1459	timers_reify (EV_A); /* relative timers called last */	1568	timers_reify (EV_A); /* relative timers called last */
1460	#if EV_PERIODIC_ENABLE	1569	#if EV_PERIODIC_ENABLE
1461	periodics_reify (EV_A); /* absolute timers called first */	1570	periodics_reify (EV_A); /* absolute timers called first */
1462	#endif	1571	#endif
1463		1572
		1573	#if EV_IDLE_ENABLE
1464	/* queue idle watchers unless other events are pending */	1574	/* queue idle watchers unless other events are pending */
1465	if (idlecnt && !any_pending (EV_A))	1575	idle_reify (EV_A);
1466	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1576	#endif
1467		1577
1468	/* queue check watchers, to be executed first */	1578	/* queue check watchers, to be executed first */
1469	if (expect_false (checkcnt))	1579	if (expect_false (checkcnt))
1470	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1580	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1471		1581
…		…
1507	head = &(*head)->next;	1617	head = &(*head)->next;
1508	}	1618	}
1509	}	1619	}
1510		1620
1511	void inline_speed	1621	void inline_speed
1512	ev_clear_pending (EV_P_ W w)	1622	clear_pending (EV_P_ W w)
1513	{	1623	{
1514	if (w->pending)	1624	if (w->pending)
1515	{	1625	{
1516	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1626	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1517	w->pending = 0;	1627	w->pending = 0;
1518	}	1628	}
1519	}	1629	}
1520		1630
		1631	int
		1632	ev_clear_pending (EV_P_ void *w)
		1633	{
		1634	W w_ = (W)w;
		1635	int pending = w_->pending;
		1636
		1637	if (expect_true (pending))
		1638	{
		1639	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1640	w_->pending = 0;
		1641	p->w = 0;
		1642	return p->events;
		1643	}
		1644	else
		1645	return 0;
		1646	}
		1647
		1648	void inline_size
		1649	pri_adjust (EV_P_ W w)
		1650	{
		1651	int pri = w->priority;
		1652	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1653	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1654	w->priority = pri;
		1655	}
		1656
1521	void inline_speed	1657	void inline_speed
1522	ev_start (EV_P_ W w, int active)	1658	ev_start (EV_P_ W w, int active)
1523	{	1659	{
1524	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1660	pri_adjust (EV_A_ w);
1525	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1526
1527	w->active = active;	1661	w->active = active;
1528	ev_ref (EV_A);	1662	ev_ref (EV_A);
1529	}	1663	}
1530		1664
1531	void inline_size	1665	void inline_size
…		…
1535	w->active = 0;	1669	w->active = 0;
1536	}	1670	}
1537		1671
1538	/*****************************************************************************/	1672	/*****************************************************************************/
1539		1673
1540	void	1674	void noinline
1541	ev_io_start (EV_P_ ev_io *w)	1675	ev_io_start (EV_P_ ev_io *w)
1542	{	1676	{
1543	int fd = w->fd;	1677	int fd = w->fd;
1544		1678
1545	if (expect_false (ev_is_active (w)))	1679	if (expect_false (ev_is_active (w)))
…		…
1547		1681
1548	assert (("ev_io_start called with negative fd", fd >= 0));	1682	assert (("ev_io_start called with negative fd", fd >= 0));
1549		1683
1550	ev_start (EV_A_ (W)w, 1);	1684	ev_start (EV_A_ (W)w, 1);
1551	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1685	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1552	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1686	wlist_add (&anfds[fd].head, (WL)w);
1553		1687
1554	fd_change (EV_A_ fd);	1688	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1689	w->events &= ~EV_IOFDSET;
1555	}	1690	}
1556		1691
1557	void	1692	void noinline
1558	ev_io_stop (EV_P_ ev_io *w)	1693	ev_io_stop (EV_P_ ev_io *w)
1559	{	1694	{
1560	ev_clear_pending (EV_A_ (W)w);	1695	clear_pending (EV_A_ (W)w);
1561	if (expect_false (!ev_is_active (w)))	1696	if (expect_false (!ev_is_active (w)))
1562	return;	1697	return;
1563		1698
1564	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1699	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1565		1700
1566	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1701	wlist_del (&anfds[w->fd].head, (WL)w);
1567	ev_stop (EV_A_ (W)w);	1702	ev_stop (EV_A_ (W)w);
1568		1703
1569	fd_change (EV_A_ w->fd);	1704	fd_change (EV_A_ w->fd, 1);
1570	}	1705	}
1571		1706
1572	void	1707	void noinline
1573	ev_timer_start (EV_P_ ev_timer *w)	1708	ev_timer_start (EV_P_ ev_timer *w)
1574	{	1709	{
1575	if (expect_false (ev_is_active (w)))	1710	if (expect_false (ev_is_active (w)))
1576	return;	1711	return;
1577		1712
1578	((WT)w)->at += mn_now;	1713	((WT)w)->at += mn_now;
1579		1714
1580	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1715	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1581		1716
1582	ev_start (EV_A_ (W)w, ++timercnt);	1717	ev_start (EV_A_ (W)w, ++timercnt);
1583	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1718	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1584	timers [timercnt - 1] = w;	1719	timers [timercnt - 1] = (WT)w;
1585	upheap ((WT *)timers, timercnt - 1);	1720	upheap (timers, timercnt - 1);
1586		1721
1587	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1722	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1588	}	1723	}
1589		1724
1590	void	1725	void noinline
1591	ev_timer_stop (EV_P_ ev_timer *w)	1726	ev_timer_stop (EV_P_ ev_timer *w)
1592	{	1727	{
1593	ev_clear_pending (EV_A_ (W)w);	1728	clear_pending (EV_A_ (W)w);
1594	if (expect_false (!ev_is_active (w)))	1729	if (expect_false (!ev_is_active (w)))
1595	return;	1730	return;
1596		1731
1597	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1732	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1598		1733
1599	{	1734	{
1600	int active = ((W)w)->active;	1735	int active = ((W)w)->active;
1601		1736
1602	if (expect_true (--active < --timercnt))	1737	if (expect_true (--active < --timercnt))
1603	{	1738	{
1604	timers [active] = timers [timercnt];	1739	timers [active] = timers [timercnt];
1605	adjustheap ((WT *)timers, timercnt, active);	1740	adjustheap (timers, timercnt, active);
1606	}	1741	}
1607	}	1742	}
1608		1743
1609	((WT)w)->at -= mn_now;	1744	((WT)w)->at -= mn_now;
1610		1745
1611	ev_stop (EV_A_ (W)w);	1746	ev_stop (EV_A_ (W)w);
1612	}	1747	}
1613		1748
1614	void	1749	void noinline
1615	ev_timer_again (EV_P_ ev_timer *w)	1750	ev_timer_again (EV_P_ ev_timer *w)
1616	{	1751	{
1617	if (ev_is_active (w))	1752	if (ev_is_active (w))
1618	{	1753	{
1619	if (w->repeat)	1754	if (w->repeat)
1620	{	1755	{
1621	((WT)w)->at = mn_now + w->repeat;	1756	((WT)w)->at = mn_now + w->repeat;
1622	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1757	adjustheap (timers, timercnt, ((W)w)->active - 1);
1623	}	1758	}
1624	else	1759	else
1625	ev_timer_stop (EV_A_ w);	1760	ev_timer_stop (EV_A_ w);
1626	}	1761	}
1627	else if (w->repeat)	1762	else if (w->repeat)
…		…
1630	ev_timer_start (EV_A_ w);	1765	ev_timer_start (EV_A_ w);
1631	}	1766	}
1632	}	1767	}
1633		1768
1634	#if EV_PERIODIC_ENABLE	1769	#if EV_PERIODIC_ENABLE
1635	void	1770	void noinline
1636	ev_periodic_start (EV_P_ ev_periodic *w)	1771	ev_periodic_start (EV_P_ ev_periodic *w)
1637	{	1772	{
1638	if (expect_false (ev_is_active (w)))	1773	if (expect_false (ev_is_active (w)))
1639	return;	1774	return;
1640		1775
…		…
1642	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1777	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1643	else if (w->interval)	1778	else if (w->interval)
1644	{	1779	{
1645	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1780	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1646	/* this formula differs from the one in periodic_reify because we do not always round up */	1781	/* this formula differs from the one in periodic_reify because we do not always round up */
1647	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1782	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1648	}	1783	}
		1784	else
		1785	((WT)w)->at = w->offset;
1649		1786
1650	ev_start (EV_A_ (W)w, ++periodiccnt);	1787	ev_start (EV_A_ (W)w, ++periodiccnt);
1651	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1788	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1652	periodics [periodiccnt - 1] = w;	1789	periodics [periodiccnt - 1] = (WT)w;
1653	upheap ((WT *)periodics, periodiccnt - 1);	1790	upheap (periodics, periodiccnt - 1);
1654		1791
1655	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1792	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1656	}	1793	}
1657		1794
1658	void	1795	void noinline
1659	ev_periodic_stop (EV_P_ ev_periodic *w)	1796	ev_periodic_stop (EV_P_ ev_periodic *w)
1660	{	1797	{
1661	ev_clear_pending (EV_A_ (W)w);	1798	clear_pending (EV_A_ (W)w);
1662	if (expect_false (!ev_is_active (w)))	1799	if (expect_false (!ev_is_active (w)))
1663	return;	1800	return;
1664		1801
1665	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1802	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1666		1803
1667	{	1804	{
1668	int active = ((W)w)->active;	1805	int active = ((W)w)->active;
1669		1806
1670	if (expect_true (--active < --periodiccnt))	1807	if (expect_true (--active < --periodiccnt))
1671	{	1808	{
1672	periodics [active] = periodics [periodiccnt];	1809	periodics [active] = periodics [periodiccnt];
1673	adjustheap ((WT *)periodics, periodiccnt, active);	1810	adjustheap (periodics, periodiccnt, active);
1674	}	1811	}
1675	}	1812	}
1676		1813
1677	ev_stop (EV_A_ (W)w);	1814	ev_stop (EV_A_ (W)w);
1678	}	1815	}
1679		1816
1680	void	1817	void noinline
1681	ev_periodic_again (EV_P_ ev_periodic *w)	1818	ev_periodic_again (EV_P_ ev_periodic *w)
1682	{	1819	{
1683	/* TODO: use adjustheap and recalculation */	1820	/* TODO: use adjustheap and recalculation */
1684	ev_periodic_stop (EV_A_ w);	1821	ev_periodic_stop (EV_A_ w);
1685	ev_periodic_start (EV_A_ w);	1822	ev_periodic_start (EV_A_ w);
…		…
1688		1825
1689	#ifndef SA_RESTART	1826	#ifndef SA_RESTART
1690	# define SA_RESTART 0	1827	# define SA_RESTART 0
1691	#endif	1828	#endif
1692		1829
1693	void	1830	void noinline
1694	ev_signal_start (EV_P_ ev_signal *w)	1831	ev_signal_start (EV_P_ ev_signal *w)
1695	{	1832	{
1696	#if EV_MULTIPLICITY	1833	#if EV_MULTIPLICITY
1697	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1834	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1698	#endif	1835	#endif
1699	if (expect_false (ev_is_active (w)))	1836	if (expect_false (ev_is_active (w)))
1700	return;	1837	return;
1701		1838
1702	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1839	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1703		1840
		1841	{
		1842	#ifndef _WIN32
		1843	sigset_t full, prev;
		1844	sigfillset (&full);
		1845	sigprocmask (SIG_SETMASK, &full, &prev);
		1846	#endif
		1847
		1848	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1849
		1850	#ifndef _WIN32
		1851	sigprocmask (SIG_SETMASK, &prev, 0);
		1852	#endif
		1853	}
		1854
1704	ev_start (EV_A_ (W)w, 1);	1855	ev_start (EV_A_ (W)w, 1);
1705	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1706	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1856	wlist_add (&signals [w->signum - 1].head, (WL)w);
1707		1857
1708	if (!((WL)w)->next)	1858	if (!((WL)w)->next)
1709	{	1859	{
1710	#if _WIN32	1860	#if _WIN32
1711	signal (w->signum, sighandler);	1861	signal (w->signum, sighandler);
…		…
1717	sigaction (w->signum, &sa, 0);	1867	sigaction (w->signum, &sa, 0);
1718	#endif	1868	#endif
1719	}	1869	}
1720	}	1870	}
1721		1871
1722	void	1872	void noinline
1723	ev_signal_stop (EV_P_ ev_signal *w)	1873	ev_signal_stop (EV_P_ ev_signal *w)
1724	{	1874	{
1725	ev_clear_pending (EV_A_ (W)w);	1875	clear_pending (EV_A_ (W)w);
1726	if (expect_false (!ev_is_active (w)))	1876	if (expect_false (!ev_is_active (w)))
1727	return;	1877	return;
1728		1878
1729	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1879	wlist_del (&signals [w->signum - 1].head, (WL)w);
1730	ev_stop (EV_A_ (W)w);	1880	ev_stop (EV_A_ (W)w);
1731		1881
1732	if (!signals [w->signum - 1].head)	1882	if (!signals [w->signum - 1].head)
1733	signal (w->signum, SIG_DFL);	1883	signal (w->signum, SIG_DFL);
1734	}	1884	}
…		…
1741	#endif	1891	#endif
1742	if (expect_false (ev_is_active (w)))	1892	if (expect_false (ev_is_active (w)))
1743	return;	1893	return;
1744		1894
1745	ev_start (EV_A_ (W)w, 1);	1895	ev_start (EV_A_ (W)w, 1);
1746	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1896	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1747	}	1897	}
1748		1898
1749	void	1899	void
1750	ev_child_stop (EV_P_ ev_child *w)	1900	ev_child_stop (EV_P_ ev_child *w)
1751	{	1901	{
1752	ev_clear_pending (EV_A_ (W)w);	1902	clear_pending (EV_A_ (W)w);
1753	if (expect_false (!ev_is_active (w)))	1903	if (expect_false (!ev_is_active (w)))
1754	return;	1904	return;
1755		1905
1756	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1906	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1757	ev_stop (EV_A_ (W)w);	1907	ev_stop (EV_A_ (W)w);
1758	}	1908	}
1759		1909
1760	#if EV_STAT_ENABLE	1910	#if EV_STAT_ENABLE
1761		1911
…		…
1993	}	2143	}
1994		2144
1995	void	2145	void
1996	ev_stat_stop (EV_P_ ev_stat *w)	2146	ev_stat_stop (EV_P_ ev_stat *w)
1997	{	2147	{
1998	ev_clear_pending (EV_A_ (W)w);	2148	clear_pending (EV_A_ (W)w);
1999	if (expect_false (!ev_is_active (w)))	2149	if (expect_false (!ev_is_active (w)))
2000	return;	2150	return;
2001		2151
2002	#if EV_USE_INOTIFY	2152	#if EV_USE_INOTIFY
2003	infy_del (EV_A_ w);	2153	infy_del (EV_A_ w);
…		…
2006		2156
2007	ev_stop (EV_A_ (W)w);	2157	ev_stop (EV_A_ (W)w);
2008	}	2158	}
2009	#endif	2159	#endif
2010		2160
		2161	#if EV_IDLE_ENABLE
2011	void	2162	void
2012	ev_idle_start (EV_P_ ev_idle *w)	2163	ev_idle_start (EV_P_ ev_idle *w)
2013	{	2164	{
2014	if (expect_false (ev_is_active (w)))	2165	if (expect_false (ev_is_active (w)))
2015	return;	2166	return;
2016		2167
		2168	pri_adjust (EV_A_ (W)w);
		2169
		2170	{
		2171	int active = ++idlecnt [ABSPRI (w)];
		2172
		2173	++idleall;
2017	ev_start (EV_A_ (W)w, ++idlecnt);	2174	ev_start (EV_A_ (W)w, active);
		2175
2018	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2176	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2019	idles [idlecnt - 1] = w;	2177	idles [ABSPRI (w)][active - 1] = w;
		2178	}
2020	}	2179	}
2021		2180
2022	void	2181	void
2023	ev_idle_stop (EV_P_ ev_idle *w)	2182	ev_idle_stop (EV_P_ ev_idle *w)
2024	{	2183	{
2025	ev_clear_pending (EV_A_ (W)w);	2184	clear_pending (EV_A_ (W)w);
2026	if (expect_false (!ev_is_active (w)))	2185	if (expect_false (!ev_is_active (w)))
2027	return;	2186	return;
2028		2187
2029	{	2188	{
2030	int active = ((W)w)->active;	2189	int active = ((W)w)->active;
2031	idles [active - 1] = idles [--idlecnt];	2190
		2191	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2032	((W)idles [active - 1])->active = active;	2192	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2193
		2194	ev_stop (EV_A_ (W)w);
		2195	--idleall;
2033	}	2196	}
2034
2035	ev_stop (EV_A_ (W)w);
2036	}	2197	}
		2198	#endif
2037		2199
2038	void	2200	void
2039	ev_prepare_start (EV_P_ ev_prepare *w)	2201	ev_prepare_start (EV_P_ ev_prepare *w)
2040	{	2202	{
2041	if (expect_false (ev_is_active (w)))	2203	if (expect_false (ev_is_active (w)))
…		…
2047	}	2209	}
2048		2210
2049	void	2211	void
2050	ev_prepare_stop (EV_P_ ev_prepare *w)	2212	ev_prepare_stop (EV_P_ ev_prepare *w)
2051	{	2213	{
2052	ev_clear_pending (EV_A_ (W)w);	2214	clear_pending (EV_A_ (W)w);
2053	if (expect_false (!ev_is_active (w)))	2215	if (expect_false (!ev_is_active (w)))
2054	return;	2216	return;
2055		2217
2056	{	2218	{
2057	int active = ((W)w)->active;	2219	int active = ((W)w)->active;
…		…
2074	}	2236	}
2075		2237
2076	void	2238	void
2077	ev_check_stop (EV_P_ ev_check *w)	2239	ev_check_stop (EV_P_ ev_check *w)
2078	{	2240	{
2079	ev_clear_pending (EV_A_ (W)w);	2241	clear_pending (EV_A_ (W)w);
2080	if (expect_false (!ev_is_active (w)))	2242	if (expect_false (!ev_is_active (w)))
2081	return;	2243	return;
2082		2244
2083	{	2245	{
2084	int active = ((W)w)->active;	2246	int active = ((W)w)->active;
…		…
2091		2253
2092	#if EV_EMBED_ENABLE	2254	#if EV_EMBED_ENABLE
2093	void noinline	2255	void noinline
2094	ev_embed_sweep (EV_P_ ev_embed *w)	2256	ev_embed_sweep (EV_P_ ev_embed *w)
2095	{	2257	{
2096	ev_loop (w->loop, EVLOOP_NONBLOCK);	2258	ev_loop (w->other, EVLOOP_NONBLOCK);
2097	}	2259	}
2098		2260
2099	static void	2261	static void
2100	embed_cb (EV_P_ ev_io *io, int revents)	2262	embed_io_cb (EV_P_ ev_io *io, int revents)
2101	{	2263	{
2102	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2264	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2103		2265
2104	if (ev_cb (w))	2266	if (ev_cb (w))
2105	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2267	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2106	else	2268	else
2107	ev_embed_sweep (loop, w);	2269	ev_embed_sweep (loop, w);
2108	}	2270	}
2109		2271
		2272	static void
		2273	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2274	{
		2275	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2276
		2277	fd_reify (w->other);
		2278	}
		2279
2110	void	2280	void
2111	ev_embed_start (EV_P_ ev_embed *w)	2281	ev_embed_start (EV_P_ ev_embed *w)
2112	{	2282	{
2113	if (expect_false (ev_is_active (w)))	2283	if (expect_false (ev_is_active (w)))
2114	return;	2284	return;
2115		2285
2116	{	2286	{
2117	struct ev_loop *loop = w->loop;	2287	struct ev_loop *loop = w->other;
2118	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2288	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2119	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2289	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2120	}	2290	}
2121		2291
2122	ev_set_priority (&w->io, ev_priority (w));	2292	ev_set_priority (&w->io, ev_priority (w));
2123	ev_io_start (EV_A_ &w->io);	2293	ev_io_start (EV_A_ &w->io);
2124		2294
		2295	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2296	ev_set_priority (&w->prepare, EV_MINPRI);
		2297	ev_prepare_start (EV_A_ &w->prepare);
		2298
2125	ev_start (EV_A_ (W)w, 1);	2299	ev_start (EV_A_ (W)w, 1);
2126	}	2300	}
2127		2301
2128	void	2302	void
2129	ev_embed_stop (EV_P_ ev_embed *w)	2303	ev_embed_stop (EV_P_ ev_embed *w)
2130	{	2304	{
2131	ev_clear_pending (EV_A_ (W)w);	2305	clear_pending (EV_A_ (W)w);
2132	if (expect_false (!ev_is_active (w)))	2306	if (expect_false (!ev_is_active (w)))
2133	return;	2307	return;
2134		2308
2135	ev_io_stop (EV_A_ &w->io);	2309	ev_io_stop (EV_A_ &w->io);
		2310	ev_prepare_stop (EV_A_ &w->prepare);
2136		2311
2137	ev_stop (EV_A_ (W)w);	2312	ev_stop (EV_A_ (W)w);
2138	}	2313	}
2139	#endif	2314	#endif
2140		2315
…		…
2151	}	2326	}
2152		2327
2153	void	2328	void
2154	ev_fork_stop (EV_P_ ev_fork *w)	2329	ev_fork_stop (EV_P_ ev_fork *w)
2155	{	2330	{
2156	ev_clear_pending (EV_A_ (W)w);	2331	clear_pending (EV_A_ (W)w);
2157	if (expect_false (!ev_is_active (w)))	2332	if (expect_false (!ev_is_active (w)))
2158	return;	2333	return;
2159		2334
2160	{	2335	{
2161	int active = ((W)w)->active;	2336	int active = ((W)w)->active;
…		…
2229	ev_timer_set (&once->to, timeout, 0.);	2404	ev_timer_set (&once->to, timeout, 0.);
2230	ev_timer_start (EV_A_ &once->to);	2405	ev_timer_start (EV_A_ &once->to);
2231	}	2406	}
2232	}	2407	}
2233		2408
		2409	#if EV_MULTIPLICITY
		2410	#include "ev_wrap.h"
		2411	#endif
		2412
2234	#ifdef __cplusplus	2413	#ifdef __cplusplus
2235	}	2414	}
2236	#endif	2415	#endif
2237		2416

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.163 by root, Wed Dec 5 13:54:36 2007 UTC vs. Revision 1.193 by root, Sat Dec 22 05:47:58 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.163 by root, Wed Dec 5 13:54:36 2007 UTC vs.
Revision 1.193 by root, Sat Dec 22 05:47:58 2007 UTC