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

Comparing libev/ev.c (file contents):
Revision 1.152 by root, Wed Nov 28 11:15:55 2007 UTC vs.
Revision 1.183 by root, Wed Dec 12 05:11:56 2007 UTC

…		…
216	# include <sys/inotify.h>	216	# include <sys/inotify.h>
217	#endif	217	#endif
218		218
219	/**/	219	/**/
220		220
		221	/*
		222	* This is used to avoid floating point rounding problems.
		223	* It is added to ev_rt_now when scheduling periodics
		224	* to ensure progress, time-wise, even when rounding
		225	* errors are against us.
		226	* This value is good at least till the year 4000.
		227	* Better solutions welcome.
		228	*/
		229	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
		230
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	231	#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) */	232	#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 */	233	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
224		234
225	#if __GNUC__ >= 3	235	#if __GNUC__ >= 3
226	# define expect(expr,value) __builtin_expect ((expr),(value))	236	# 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))	237	# 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	238	#else
236	# define expect(expr,value) (expr)	239	# define expect(expr,value) (expr)
237	# define inline_speed static
238	# define inline_size static
239	# define noinline	240	# define noinline
		241	# if __STDC_VERSION__ < 199901L
		242	# define inline
		243	# endif
240	#endif	244	#endif
241		245
242	#define expect_false(expr) expect ((expr) != 0, 0)	246	#define expect_false(expr) expect ((expr) != 0, 0)
243	#define expect_true(expr) expect ((expr) != 0, 1)	247	#define expect_true(expr) expect ((expr) != 0, 1)
		248	#define inline_size static inline
		249
		250	#if EV_MINIMAL
		251	# define inline_speed static noinline
		252	#else
		253	# define inline_speed static inline
		254	#endif
244		255
245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	256	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	257	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247		258
248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	259	#define EMPTY /* required for microsofts broken pseudo-c compiler */
249	#define EMPTY2(a,b) /* used to suppress some warnings */	260	#define EMPTY2(a,b) /* used to suppress some warnings */
250		261
251	typedef ev_watcher *W;	262	typedef ev_watcher *W;
252	typedef ev_watcher_list *WL;	263	typedef ev_watcher_list *WL;
253	typedef ev_watcher_time *WT;	264	typedef ev_watcher_time *WT;
…		…
281	perror (msg);	292	perror (msg);
282	abort ();	293	abort ();
283	}	294	}
284	}	295	}
285		296
286	static void (alloc)(void *ptr, size_t size) = realloc;	297	static void (alloc)(void *ptr, long size);
287		298
288	void	299	void
289	ev_set_allocator (void (cb)(void *ptr, size_t size))	300	ev_set_allocator (void (cb)(void *ptr, long size))
290	{	301	{
291	alloc = cb;	302	alloc = cb;
292	}	303	}
293		304
294	inline_speed void *	305	inline_speed void *
295	ev_realloc (void *ptr, size_t size)	306	ev_realloc (void *ptr, long size)
296	{	307	{
297	ptr = alloc (ptr, size);	308	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
298		309
299	if (!ptr && size)	310	if (!ptr && size)
300	{	311	{
301	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size);	312	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
302	abort ();	313	abort ();
303	}	314	}
304		315
305	return ptr;	316	return ptr;
306	}	317	}
…		…
324	{	335	{
325	W w;	336	W w;
326	int events;	337	int events;
327	} ANPENDING;	338	} ANPENDING;
328		339
		340	#if EV_USE_INOTIFY
329	typedef struct	341	typedef struct
330	{	342	{
331	#if EV_USE_INOTIFY
332	WL head;	343	WL head;
333	#endif
334	} ANFS;	344	} ANFS;
		345	#endif
335		346
336	#if EV_MULTIPLICITY	347	#if EV_MULTIPLICITY
337		348
338	struct ev_loop	349	struct ev_loop
339	{	350	{
…		…
396	{	407	{
397	return ev_rt_now;	408	return ev_rt_now;
398	}	409	}
399	#endif	410	#endif
400		411
401	#define array_roundsize(type,n) (((n) \| 4) & ~3)	412	int inline_size
		413	array_nextsize (int elem, int cur, int cnt)
		414	{
		415	int ncur = cur + 1;
		416
		417	do
		418	ncur <<= 1;
		419	while (cnt > ncur);
		420
		421	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		422	if (elem * ncur > 4096)
		423	{
		424	ncur *= elem;
		425	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;
		426	ncur = ncur - sizeof (void ) 4;
		427	ncur /= elem;
		428	}
		429
		430	return ncur;
		431	}
		432
		433	static noinline void *
		434	array_realloc (int elem, void base, int cur, int cnt)
		435	{
		436	cur = array_nextsize (elem, cur, cnt);
		437	return ev_realloc (base, elem * *cur);
		438	}
402		439
403	#define array_needsize(type,base,cur,cnt,init) \	440	#define array_needsize(type,base,cur,cnt,init) \
404	if (expect_false ((cnt) > cur)) \	441	if (expect_false ((cnt) > (cur))) \
405	{ \	442	{ \
406	int newcnt = cur; \	443	int ocur_ = (cur); \
407	do \	444	(base) = (type *)array_realloc \
408	{ \	445	(sizeof (type), (base), &(cur), (cnt)); \
409	newcnt = array_roundsize (type, newcnt << 1); \	446	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	}	447	}
417		448
		449	#if 0
418	#define array_slim(type,stem) \	450	#define array_slim(type,stem) \
419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	451	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420	{ \	452	{ \
421	stem ## max = array_roundsize (stem ## cnt >> 1); \	453	stem ## max = array_roundsize (stem ## cnt >> 1); \
422	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	454	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	455	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
424	}	456	}
		457	#endif
425		458
426	#define array_free(stem, idx) \	459	#define array_free(stem, idx) \
427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	460	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428		461
429	/*****************************************************************************/	462	/*****************************************************************************/
430		463
431	void noinline	464	void noinline
432	ev_feed_event (EV_P_ void *w, int revents)	465	ev_feed_event (EV_P_ void *w, int revents)
433	{	466	{
434	W w_ = (W)w;	467	W w_ = (W)w;
		468	int pri = ABSPRI (w_);
435		469
436	if (expect_false (w_->pending))	470	if (expect_false (w_->pending))
		471	pendings [pri][w_->pending - 1].events \|= revents;
		472	else
437	{	473	{
		474	w_->pending = ++pendingcnt [pri];
		475	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		476	pendings [pri][w_->pending - 1].w = w_;
438	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	477	pendings [pri][w_->pending - 1].events = revents;
439	return;
440	}	478	}
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	}	479	}
447		480
448	void inline_size	481	void inline_speed
449	queue_events (EV_P_ W *events, int eventcnt, int type)	482	queue_events (EV_P_ W *events, int eventcnt, int type)
450	{	483	{
451	int i;	484	int i;
452		485
453	for (i = 0; i < eventcnt; ++i)	486	for (i = 0; i < eventcnt; ++i)
…		…
485	}	518	}
486		519
487	void	520	void
488	ev_feed_fd_event (EV_P_ int fd, int revents)	521	ev_feed_fd_event (EV_P_ int fd, int revents)
489	{	522	{
		523	if (fd >= 0 && fd < anfdmax)
490	fd_event (EV_A_ fd, revents);	524	fd_event (EV_A_ fd, revents);
491	}	525	}
492		526
493	void inline_size	527	void inline_size
494	fd_reify (EV_P)	528	fd_reify (EV_P)
495	{	529	{
…		…
523		557
524	fdchangecnt = 0;	558	fdchangecnt = 0;
525	}	559	}
526		560
527	void inline_size	561	void inline_size
528	fd_change (EV_P_ int fd)	562	fd_change (EV_P_ int fd, int flags)
529	{	563	{
530	if (expect_false (anfds [fd].reify))	564	unsigned char reify = anfds [fd].reify;
531	return;
532
533	anfds [fd].reify = 1;	565	anfds [fd].reify \|= flags \| 1;
534		566
		567	if (expect_true (!reify))
		568	{
535	++fdchangecnt;	569	++fdchangecnt;
536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	570	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537	fdchanges [fdchangecnt - 1] = fd;	571	fdchanges [fdchangecnt - 1] = fd;
		572	}
538	}	573	}
539		574
540	void inline_speed	575	void inline_speed
541	fd_kill (EV_P_ int fd)	576	fd_kill (EV_P_ int fd)
542	{	577	{
…		…
589	static void noinline	624	static void noinline
590	fd_rearm_all (EV_P)	625	fd_rearm_all (EV_P)
591	{	626	{
592	int fd;	627	int fd;
593		628
594	/* this should be highly optimised to not do anything but set a flag */
595	for (fd = 0; fd < anfdmax; ++fd)	629	for (fd = 0; fd < anfdmax; ++fd)
596	if (anfds [fd].events)	630	if (anfds [fd].events)
597	{	631	{
598	anfds [fd].events = 0;	632	anfds [fd].events = 0;
599	fd_change (EV_A_ fd);	633	fd_change (EV_A_ fd, EV_IOFDSET);
600	}	634	}
601	}	635	}
602		636
603	/*****************************************************************************/	637	/*****************************************************************************/
604		638
605	void inline_speed	639	void inline_speed
606	upheap (WT *heap, int k)	640	upheap (WT *heap, int k)
607	{	641	{
608	WT w = heap [k];	642	WT w = heap [k];
609		643
610	while (k && heap [k >> 1]->at > w->at)	644	while (k)
611	{	645	{
		646	int p = (k - 1) >> 1;
		647
		648	if (heap [p]->at <= w->at)
		649	break;
		650
612	heap [k] = heap [k >> 1];	651	heap [k] = heap [p];
613	((W)heap [k])->active = k + 1;	652	((W)heap [k])->active = k + 1;
614	k >>= 1;	653	k = p;
615	}	654	}
616		655
617	heap [k] = w;	656	heap [k] = w;
618	((W)heap [k])->active = k + 1;	657	((W)heap [k])->active = k + 1;
619
620	}	658	}
621		659
622	void inline_speed	660	void inline_speed
623	downheap (WT *heap, int N, int k)	661	downheap (WT *heap, int N, int k)
624	{	662	{
625	WT w = heap [k];	663	WT w = heap [k];
626		664
627	while (k < (N >> 1))	665	for (;;)
628	{	666	{
629	int j = k << 1;	667	int c = (k << 1) + 1;
630		668
631	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	669	if (c >= N)
632	++j;
633
634	if (w->at <= heap [j]->at)
635	break;	670	break;
636		671
		672	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		673	? 1 : 0;
		674
		675	if (w->at <= heap [c]->at)
		676	break;
		677
637	heap [k] = heap [j];	678	heap [k] = heap [c];
638	((W)heap [k])->active = k + 1;	679	((W)heap [k])->active = k + 1;
		680
639	k = j;	681	k = c;
640	}	682	}
641		683
642	heap [k] = w;	684	heap [k] = w;
643	((W)heap [k])->active = k + 1;	685	((W)heap [k])->active = k + 1;
644	}	686	}
…		…
726	for (signum = signalmax; signum--; )	768	for (signum = signalmax; signum--; )
727	if (signals [signum].gotsig)	769	if (signals [signum].gotsig)
728	ev_feed_signal_event (EV_A_ signum + 1);	770	ev_feed_signal_event (EV_A_ signum + 1);
729	}	771	}
730		772
731	void inline_size	773	void inline_speed
732	fd_intern (int fd)	774	fd_intern (int fd)
733	{	775	{
734	#ifdef _WIN32	776	#ifdef _WIN32
735	int arg = 1;	777	int arg = 1;
736	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	778	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
751	ev_unref (EV_A); /* child watcher should not keep loop alive */	793	ev_unref (EV_A); /* child watcher should not keep loop alive */
752	}	794	}
753		795
754	/*****************************************************************************/	796	/*****************************************************************************/
755		797
756	static ev_child *childs [EV_PID_HASHSIZE];	798	static WL childs [EV_PID_HASHSIZE];
757		799
758	#ifndef _WIN32	800	#ifndef _WIN32
759		801
760	static ev_signal childev;	802	static ev_signal childev;
761		803
…		…
765	ev_child *w;	807	ev_child *w;
766		808
767	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	809	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
768	if (w->pid == pid \|\| !w->pid)	810	if (w->pid == pid \|\| !w->pid)
769	{	811	{
770	ev_priority (w) = ev_priority (sw); /* need to do it now */	812	ev_set_priority (w, ev_priority (sw)); /* need to do it now */
771	w->rpid = pid;	813	w->rpid = pid;
772	w->rstatus = status;	814	w->rstatus = status;
773	ev_feed_event (EV_A_ (W)w, EV_CHILD);	815	ev_feed_event (EV_A_ (W)w, EV_CHILD);
774	}	816	}
775	}	817	}
776		818
777	#ifndef WCONTINUED	819	#ifndef WCONTINUED
…		…
887	ev_backend (EV_P)	929	ev_backend (EV_P)
888	{	930	{
889	return backend;	931	return backend;
890	}	932	}
891		933
		934	unsigned int
		935	ev_loop_count (EV_P)
		936	{
		937	return loop_count;
		938	}
		939
892	static void noinline	940	static void noinline
893	loop_init (EV_P_ unsigned int flags)	941	loop_init (EV_P_ unsigned int flags)
894	{	942	{
895	if (!backend)	943	if (!backend)
896	{	944	{
…		…
905	ev_rt_now = ev_time ();	953	ev_rt_now = ev_time ();
906	mn_now = get_clock ();	954	mn_now = get_clock ();
907	now_floor = mn_now;	955	now_floor = mn_now;
908	rtmn_diff = ev_rt_now - mn_now;	956	rtmn_diff = ev_rt_now - mn_now;
909		957
		958	/* pid check not overridable via env */
		959	#ifndef _WIN32
		960	if (flags & EVFLAG_FORKCHECK)
		961	curpid = getpid ();
		962	#endif
		963
910	if (!(flags & EVFLAG_NOENV)	964	if (!(flags & EVFLAG_NOENV)
911	&& !enable_secure ()	965	&& !enable_secure ()
912	&& getenv ("LIBEV_FLAGS"))	966	&& getenv ("LIBEV_FLAGS"))
913	flags = atoi (getenv ("LIBEV_FLAGS"));	967	flags = atoi (getenv ("LIBEV_FLAGS"));
914		968
…		…
970	#if EV_USE_SELECT	1024	#if EV_USE_SELECT
971	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1025	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
972	#endif	1026	#endif
973		1027
974	for (i = NUMPRI; i--; )	1028	for (i = NUMPRI; i--; )
		1029	{
975	array_free (pending, [i]);	1030	array_free (pending, [i]);
		1031	#if EV_IDLE_ENABLE
		1032	array_free (idle, [i]);
		1033	#endif
		1034	}
976		1035
977	/* have to use the microsoft-never-gets-it-right macro */	1036	/* have to use the microsoft-never-gets-it-right macro */
978	array_free (fdchange, EMPTY0);	1037	array_free (fdchange, EMPTY);
979	array_free (timer, EMPTY0);	1038	array_free (timer, EMPTY);
980	#if EV_PERIODIC_ENABLE	1039	#if EV_PERIODIC_ENABLE
981	array_free (periodic, EMPTY0);	1040	array_free (periodic, EMPTY);
982	#endif	1041	#endif
983	array_free (idle, EMPTY0);
984	array_free (prepare, EMPTY0);	1042	array_free (prepare, EMPTY);
985	array_free (check, EMPTY0);	1043	array_free (check, EMPTY);
986		1044
987	backend = 0;	1045	backend = 0;
988	}	1046	}
		1047
		1048	void inline_size infy_fork (EV_P);
989		1049
990	void inline_size	1050	void inline_size
991	loop_fork (EV_P)	1051	loop_fork (EV_P)
992	{	1052	{
993	#if EV_USE_PORT	1053	#if EV_USE_PORT
…		…
996	#if EV_USE_KQUEUE	1056	#if EV_USE_KQUEUE
997	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1057	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
998	#endif	1058	#endif
999	#if EV_USE_EPOLL	1059	#if EV_USE_EPOLL
1000	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1060	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1061	#endif
		1062	#if EV_USE_INOTIFY
		1063	infy_fork (EV_A);
1001	#endif	1064	#endif
1002		1065
1003	if (ev_is_active (&sigev))	1066	if (ev_is_active (&sigev))
1004	{	1067	{
1005	/* default loop */	1068	/* default loop */
…		…
1121	postfork = 1;	1184	postfork = 1;
1122	}	1185	}
1123		1186
1124	/*****************************************************************************/	1187	/*****************************************************************************/
1125		1188
1126	int inline_size	1189	void
1127	any_pending (EV_P)	1190	ev_invoke (EV_P_ void *w, int revents)
1128	{	1191	{
1129	int pri;	1192	EV_CB_INVOKE ((W)w, revents);
1130
1131	for (pri = NUMPRI; pri--; )
1132	if (pendingcnt [pri])
1133	return 1;
1134
1135	return 0;
1136	}	1193	}
1137		1194
1138	void inline_speed	1195	void inline_speed
1139	call_pending (EV_P)	1196	call_pending (EV_P)
1140	{	1197	{
…		…
1158	void inline_size	1215	void inline_size
1159	timers_reify (EV_P)	1216	timers_reify (EV_P)
1160	{	1217	{
1161	while (timercnt && ((WT)timers [0])->at <= mn_now)	1218	while (timercnt && ((WT)timers [0])->at <= mn_now)
1162	{	1219	{
1163	ev_timer *w = timers [0];	1220	ev_timer w = (ev_timer )timers [0];
1164		1221
1165	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1222	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1166		1223
1167	/* first reschedule or stop timer */	1224	/* first reschedule or stop timer */
1168	if (w->repeat)	1225	if (w->repeat)
…		…
1171		1228
1172	((WT)w)->at += w->repeat;	1229	((WT)w)->at += w->repeat;
1173	if (((WT)w)->at < mn_now)	1230	if (((WT)w)->at < mn_now)
1174	((WT)w)->at = mn_now;	1231	((WT)w)->at = mn_now;
1175		1232
1176	downheap ((WT *)timers, timercnt, 0);	1233	downheap (timers, timercnt, 0);
1177	}	1234	}
1178	else	1235	else
1179	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1236	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1180		1237
1181	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1238	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1186	void inline_size	1243	void inline_size
1187	periodics_reify (EV_P)	1244	periodics_reify (EV_P)
1188	{	1245	{
1189	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1246	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1190	{	1247	{
1191	ev_periodic *w = periodics [0];	1248	ev_periodic w = (ev_periodic )periodics [0];
1192		1249
1193	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1250	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1194		1251
1195	/* first reschedule or stop timer */	1252	/* first reschedule or stop timer */
1196	if (w->reschedule_cb)	1253	if (w->reschedule_cb)
1197	{	1254	{
1198	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1255	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1199	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1256	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1200	downheap ((WT *)periodics, periodiccnt, 0);	1257	downheap (periodics, periodiccnt, 0);
1201	}	1258	}
1202	else if (w->interval)	1259	else if (w->interval)
1203	{	1260	{
1204	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1261	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1262	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1205	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1263	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1206	downheap ((WT *)periodics, periodiccnt, 0);	1264	downheap (periodics, periodiccnt, 0);
1207	}	1265	}
1208	else	1266	else
1209	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1267	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1210		1268
1211	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1269	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1218	int i;	1276	int i;
1219		1277
1220	/* adjust periodics after time jump */	1278	/* adjust periodics after time jump */
1221	for (i = 0; i < periodiccnt; ++i)	1279	for (i = 0; i < periodiccnt; ++i)
1222	{	1280	{
1223	ev_periodic *w = periodics [i];	1281	ev_periodic w = (ev_periodic )periodics [i];
1224		1282
1225	if (w->reschedule_cb)	1283	if (w->reschedule_cb)
1226	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1284	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1227	else if (w->interval)	1285	else if (w->interval)
1228	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1286	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1229	}	1287	}
1230		1288
1231	/* now rebuild the heap */	1289	/* now rebuild the heap */
1232	for (i = periodiccnt >> 1; i--; )	1290	for (i = periodiccnt >> 1; i--; )
1233	downheap ((WT *)periodics, periodiccnt, i);	1291	downheap (periodics, periodiccnt, i);
1234	}	1292	}
1235	#endif	1293	#endif
1236		1294
		1295	#if EV_IDLE_ENABLE
1237	int inline_size	1296	void inline_size
1238	time_update_monotonic (EV_P)	1297	idle_reify (EV_P)
1239	{	1298	{
		1299	if (expect_false (idleall))
		1300	{
		1301	int pri;
		1302
		1303	for (pri = NUMPRI; pri--; )
		1304	{
		1305	if (pendingcnt [pri])
		1306	break;
		1307
		1308	if (idlecnt [pri])
		1309	{
		1310	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1311	break;
		1312	}
		1313	}
		1314	}
		1315	}
		1316	#endif
		1317
		1318	void inline_speed
		1319	time_update (EV_P_ ev_tstamp max_block)
		1320	{
		1321	int i;
		1322
		1323	#if EV_USE_MONOTONIC
		1324	if (expect_true (have_monotonic))
		1325	{
		1326	ev_tstamp odiff = rtmn_diff;
		1327
1240	mn_now = get_clock ();	1328	mn_now = get_clock ();
1241		1329
		1330	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1331	/* interpolate in the meantime */
1242	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1332	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1243	{	1333	{
1244	ev_rt_now = rtmn_diff + mn_now;	1334	ev_rt_now = rtmn_diff + mn_now;
1245	return 0;	1335	return;
1246	}	1336	}
1247	else	1337
1248	{
1249	now_floor = mn_now;	1338	now_floor = mn_now;
1250	ev_rt_now = ev_time ();	1339	ev_rt_now = ev_time ();
1251	return 1;
1252	}
1253	}
1254		1340
1255	void inline_size	1341	/* loop a few times, before making important decisions.
1256	time_update (EV_P)	1342	* on the choice of "4": one iteration isn't enough,
1257	{	1343	* in case we get preempted during the calls to
1258	int i;	1344	* ev_time and get_clock. a second call is almost guaranteed
1259		1345	* to succeed in that case, though. and looping a few more times
1260	#if EV_USE_MONOTONIC	1346	* doesn't hurt either as we only do this on time-jumps or
1261	if (expect_true (have_monotonic))	1347	* in the unlikely event of having been preempted here.
1262	{	1348	*/
1263	if (time_update_monotonic (EV_A))	1349	for (i = 4; --i; )
1264	{	1350	{
1265	ev_tstamp odiff = rtmn_diff;
1266
1267	/* loop a few times, before making important decisions.
1268	* on the choice of "4": one iteration isn't enough,
1269	* in case we get preempted during the calls to
1270	* ev_time and get_clock. a second call is almost guarenteed
1271	* to succeed in that case, though. and looping a few more times
1272	* doesn't hurt either as we only do this on time-jumps or
1273	* in the unlikely event of getting preempted here.
1274	*/
1275	for (i = 4; --i; )
1276	{
1277	rtmn_diff = ev_rt_now - mn_now;	1351	rtmn_diff = ev_rt_now - mn_now;
1278		1352
1279	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1353	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1280	return; /* all is well */	1354	return; /* all is well */
1281		1355
1282	ev_rt_now = ev_time ();	1356	ev_rt_now = ev_time ();
1283	mn_now = get_clock ();	1357	mn_now = get_clock ();
1284	now_floor = mn_now;	1358	now_floor = mn_now;
1285	}	1359	}
1286		1360
1287	# if EV_PERIODIC_ENABLE	1361	# if EV_PERIODIC_ENABLE
1288	periodics_reschedule (EV_A);	1362	periodics_reschedule (EV_A);
1289	# endif	1363	# endif
1290	/* no timer adjustment, as the monotonic clock doesn't jump */	1364	/* no timer adjustment, as the monotonic clock doesn't jump */
1291	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1365	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1292	}
1293	}	1366	}
1294	else	1367	else
1295	#endif	1368	#endif
1296	{	1369	{
1297	ev_rt_now = ev_time ();	1370	ev_rt_now = ev_time ();
1298		1371
1299	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1372	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1300	{	1373	{
1301	#if EV_PERIODIC_ENABLE	1374	#if EV_PERIODIC_ENABLE
1302	periodics_reschedule (EV_A);	1375	periodics_reschedule (EV_A);
1303	#endif	1376	#endif
1304
1305	/* adjust timers. this is easy, as the offset is the same for all */	1377	/* adjust timers. this is easy, as the offset is the same for all of them */
1306	for (i = 0; i < timercnt; ++i)	1378	for (i = 0; i < timercnt; ++i)
1307	((WT)timers [i])->at += ev_rt_now - mn_now;	1379	((WT)timers [i])->at += ev_rt_now - mn_now;
1308	}	1380	}
1309		1381
1310	mn_now = ev_rt_now;	1382	mn_now = ev_rt_now;
…		…
1330	{	1402	{
1331	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1403	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
1332	? EVUNLOOP_ONE	1404	? EVUNLOOP_ONE
1333	: EVUNLOOP_CANCEL;	1405	: EVUNLOOP_CANCEL;
1334		1406
1335	while (activecnt)	1407	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1408
		1409	do
1336	{	1410	{
1337	/* we might have forked, so reify kernel state if necessary */	1411	#ifndef _WIN32
		1412	if (expect_false (curpid)) /* penalise the forking check even more */
		1413	if (expect_false (getpid () != curpid))
		1414	{
		1415	curpid = getpid ();
		1416	postfork = 1;
		1417	}
		1418	#endif
		1419
1338	#if EV_FORK_ENABLE	1420	#if EV_FORK_ENABLE
		1421	/* we might have forked, so queue fork handlers */
1339	if (expect_false (postfork))	1422	if (expect_false (postfork))
1340	if (forkcnt)	1423	if (forkcnt)
1341	{	1424	{
1342	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1425	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1343	call_pending (EV_A);	1426	call_pending (EV_A);
1344	}	1427	}
1345	#endif	1428	#endif
1346		1429
1347	/* queue check watchers (and execute them) */	1430	/* queue prepare watchers (and execute them) */
1348	if (expect_false (preparecnt))	1431	if (expect_false (preparecnt))
1349	{	1432	{
1350	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1433	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1351	call_pending (EV_A);	1434	call_pending (EV_A);
1352	}	1435	}
1353		1436
		1437	if (expect_false (!activecnt))
		1438	break;
		1439
1354	/* we might have forked, so reify kernel state if necessary */	1440	/* we might have forked, so reify kernel state if necessary */
1355	if (expect_false (postfork))	1441	if (expect_false (postfork))
1356	loop_fork (EV_A);	1442	loop_fork (EV_A);
1357		1443
1358	/* update fd-related kernel structures */	1444	/* update fd-related kernel structures */
1359	fd_reify (EV_A);	1445	fd_reify (EV_A);
1360		1446
1361	/* calculate blocking time */	1447	/* calculate blocking time */
1362	{	1448	{
1363	double block;	1449	ev_tstamp block;
1364		1450
1365	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1451	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))
1366	block = 0.; /* do not block at all */	1452	block = 0.; /* do not block at all */
1367	else	1453	else
1368	{	1454	{
1369	/* update time to cancel out callback processing overhead */	1455	/* update time to cancel out callback processing overhead */
1370	#if EV_USE_MONOTONIC
1371	if (expect_true (have_monotonic))
1372	time_update_monotonic (EV_A);	1456	time_update (EV_A_ 1e100);
1373	else
1374	#endif
1375	{
1376	ev_rt_now = ev_time ();
1377	mn_now = ev_rt_now;
1378	}
1379		1457
1380	block = MAX_BLOCKTIME;	1458	block = MAX_BLOCKTIME;
1381		1459
1382	if (timercnt)	1460	if (timercnt)
1383	{	1461	{
…		…
1394	#endif	1472	#endif
1395		1473
1396	if (expect_false (block < 0.)) block = 0.;	1474	if (expect_false (block < 0.)) block = 0.;
1397	}	1475	}
1398		1476
		1477	++loop_count;
1399	backend_poll (EV_A_ block);	1478	backend_poll (EV_A_ block);
		1479
		1480	/* update ev_rt_now, do magic */
		1481	time_update (EV_A_ block);
1400	}	1482	}
1401
1402	/* update ev_rt_now, do magic */
1403	time_update (EV_A);
1404		1483
1405	/* queue pending timers and reschedule them */	1484	/* queue pending timers and reschedule them */
1406	timers_reify (EV_A); /* relative timers called last */	1485	timers_reify (EV_A); /* relative timers called last */
1407	#if EV_PERIODIC_ENABLE	1486	#if EV_PERIODIC_ENABLE
1408	periodics_reify (EV_A); /* absolute timers called first */	1487	periodics_reify (EV_A); /* absolute timers called first */
1409	#endif	1488	#endif
1410		1489
		1490	#if EV_IDLE_ENABLE
1411	/* queue idle watchers unless other events are pending */	1491	/* queue idle watchers unless other events are pending */
1412	if (idlecnt && !any_pending (EV_A))	1492	idle_reify (EV_A);
1413	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1493	#endif
1414		1494
1415	/* queue check watchers, to be executed first */	1495	/* queue check watchers, to be executed first */
1416	if (expect_false (checkcnt))	1496	if (expect_false (checkcnt))
1417	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1497	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1418		1498
1419	call_pending (EV_A);	1499	call_pending (EV_A);
1420		1500
1421	if (expect_false (loop_done))
1422	break;
1423	}	1501	}
		1502	while (expect_true (activecnt && !loop_done));
1424		1503
1425	if (loop_done == EVUNLOOP_ONE)	1504	if (loop_done == EVUNLOOP_ONE)
1426	loop_done = EVUNLOOP_CANCEL;	1505	loop_done = EVUNLOOP_CANCEL;
1427	}	1506	}
1428		1507
…		…
1455	head = &(*head)->next;	1534	head = &(*head)->next;
1456	}	1535	}
1457	}	1536	}
1458		1537
1459	void inline_speed	1538	void inline_speed
1460	ev_clear_pending (EV_P_ W w)	1539	clear_pending (EV_P_ W w)
1461	{	1540	{
1462	if (w->pending)	1541	if (w->pending)
1463	{	1542	{
1464	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1543	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1465	w->pending = 0;	1544	w->pending = 0;
1466	}	1545	}
1467	}	1546	}
1468		1547
		1548	int
		1549	ev_clear_pending (EV_P_ void *w)
		1550	{
		1551	W w_ = (W)w;
		1552	int pending = w_->pending;
		1553
		1554	if (expect_true (pending))
		1555	{
		1556	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1557	w_->pending = 0;
		1558	p->w = 0;
		1559	return p->events;
		1560	}
		1561	else
		1562	return 0;
		1563	}
		1564
		1565	void inline_size
		1566	pri_adjust (EV_P_ W w)
		1567	{
		1568	int pri = w->priority;
		1569	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1570	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1571	w->priority = pri;
		1572	}
		1573
1469	void inline_speed	1574	void inline_speed
1470	ev_start (EV_P_ W w, int active)	1575	ev_start (EV_P_ W w, int active)
1471	{	1576	{
1472	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1577	pri_adjust (EV_A_ w);
1473	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1474
1475	w->active = active;	1578	w->active = active;
1476	ev_ref (EV_A);	1579	ev_ref (EV_A);
1477	}	1580	}
1478		1581
1479	void inline_size	1582	void inline_size
…		…
1483	w->active = 0;	1586	w->active = 0;
1484	}	1587	}
1485		1588
1486	/*****************************************************************************/	1589	/*****************************************************************************/
1487		1590
1488	void	1591	void noinline
1489	ev_io_start (EV_P_ ev_io *w)	1592	ev_io_start (EV_P_ ev_io *w)
1490	{	1593	{
1491	int fd = w->fd;	1594	int fd = w->fd;
1492		1595
1493	if (expect_false (ev_is_active (w)))	1596	if (expect_false (ev_is_active (w)))
…		…
1495		1598
1496	assert (("ev_io_start called with negative fd", fd >= 0));	1599	assert (("ev_io_start called with negative fd", fd >= 0));
1497		1600
1498	ev_start (EV_A_ (W)w, 1);	1601	ev_start (EV_A_ (W)w, 1);
1499	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1602	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1500	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1603	wlist_add (&anfds[fd].head, (WL)w);
1501		1604
1502	fd_change (EV_A_ fd);	1605	fd_change (EV_A_ fd, w->events & EV_IOFDSET);
		1606	w->events &= ~ EV_IOFDSET;
1503	}	1607	}
1504		1608
1505	void	1609	void noinline
1506	ev_io_stop (EV_P_ ev_io *w)	1610	ev_io_stop (EV_P_ ev_io *w)
1507	{	1611	{
1508	ev_clear_pending (EV_A_ (W)w);	1612	clear_pending (EV_A_ (W)w);
1509	if (expect_false (!ev_is_active (w)))	1613	if (expect_false (!ev_is_active (w)))
1510	return;	1614	return;
1511		1615
1512	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1616	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1513		1617
1514	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1618	wlist_del (&anfds[w->fd].head, (WL)w);
1515	ev_stop (EV_A_ (W)w);	1619	ev_stop (EV_A_ (W)w);
1516		1620
1517	fd_change (EV_A_ w->fd);	1621	fd_change (EV_A_ w->fd, 0);
1518	}	1622	}
1519		1623
1520	void	1624	void noinline
1521	ev_timer_start (EV_P_ ev_timer *w)	1625	ev_timer_start (EV_P_ ev_timer *w)
1522	{	1626	{
1523	if (expect_false (ev_is_active (w)))	1627	if (expect_false (ev_is_active (w)))
1524	return;	1628	return;
1525		1629
1526	((WT)w)->at += mn_now;	1630	((WT)w)->at += mn_now;
1527		1631
1528	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1632	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1529		1633
1530	ev_start (EV_A_ (W)w, ++timercnt);	1634	ev_start (EV_A_ (W)w, ++timercnt);
1531	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1635	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1532	timers [timercnt - 1] = w;	1636	timers [timercnt - 1] = (WT)w;
1533	upheap ((WT *)timers, timercnt - 1);	1637	upheap (timers, timercnt - 1);
1534		1638
1535	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1639	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1536	}	1640	}
1537		1641
1538	void	1642	void noinline
1539	ev_timer_stop (EV_P_ ev_timer *w)	1643	ev_timer_stop (EV_P_ ev_timer *w)
1540	{	1644	{
1541	ev_clear_pending (EV_A_ (W)w);	1645	clear_pending (EV_A_ (W)w);
1542	if (expect_false (!ev_is_active (w)))	1646	if (expect_false (!ev_is_active (w)))
1543	return;	1647	return;
1544		1648
1545	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1649	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1546		1650
1547	{	1651	{
1548	int active = ((W)w)->active;	1652	int active = ((W)w)->active;
1549		1653
1550	if (expect_true (--active < --timercnt))	1654	if (expect_true (--active < --timercnt))
1551	{	1655	{
1552	timers [active] = timers [timercnt];	1656	timers [active] = timers [timercnt];
1553	adjustheap ((WT *)timers, timercnt, active);	1657	adjustheap (timers, timercnt, active);
1554	}	1658	}
1555	}	1659	}
1556		1660
1557	((WT)w)->at -= mn_now;	1661	((WT)w)->at -= mn_now;
1558		1662
1559	ev_stop (EV_A_ (W)w);	1663	ev_stop (EV_A_ (W)w);
1560	}	1664	}
1561		1665
1562	void	1666	void noinline
1563	ev_timer_again (EV_P_ ev_timer *w)	1667	ev_timer_again (EV_P_ ev_timer *w)
1564	{	1668	{
1565	if (ev_is_active (w))	1669	if (ev_is_active (w))
1566	{	1670	{
1567	if (w->repeat)	1671	if (w->repeat)
1568	{	1672	{
1569	((WT)w)->at = mn_now + w->repeat;	1673	((WT)w)->at = mn_now + w->repeat;
1570	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1674	adjustheap (timers, timercnt, ((W)w)->active - 1);
1571	}	1675	}
1572	else	1676	else
1573	ev_timer_stop (EV_A_ w);	1677	ev_timer_stop (EV_A_ w);
1574	}	1678	}
1575	else if (w->repeat)	1679	else if (w->repeat)
…		…
1578	ev_timer_start (EV_A_ w);	1682	ev_timer_start (EV_A_ w);
1579	}	1683	}
1580	}	1684	}
1581		1685
1582	#if EV_PERIODIC_ENABLE	1686	#if EV_PERIODIC_ENABLE
1583	void	1687	void noinline
1584	ev_periodic_start (EV_P_ ev_periodic *w)	1688	ev_periodic_start (EV_P_ ev_periodic *w)
1585	{	1689	{
1586	if (expect_false (ev_is_active (w)))	1690	if (expect_false (ev_is_active (w)))
1587	return;	1691	return;
1588		1692
…		…
1590	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1694	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1591	else if (w->interval)	1695	else if (w->interval)
1592	{	1696	{
1593	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1697	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1594	/* this formula differs from the one in periodic_reify because we do not always round up */	1698	/* this formula differs from the one in periodic_reify because we do not always round up */
1595	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1699	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1596	}	1700	}
		1701	else
		1702	((WT)w)->at = w->offset;
1597		1703
1598	ev_start (EV_A_ (W)w, ++periodiccnt);	1704	ev_start (EV_A_ (W)w, ++periodiccnt);
1599	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1705	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1600	periodics [periodiccnt - 1] = w;	1706	periodics [periodiccnt - 1] = (WT)w;
1601	upheap ((WT *)periodics, periodiccnt - 1);	1707	upheap (periodics, periodiccnt - 1);
1602		1708
1603	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1709	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1604	}	1710	}
1605		1711
1606	void	1712	void noinline
1607	ev_periodic_stop (EV_P_ ev_periodic *w)	1713	ev_periodic_stop (EV_P_ ev_periodic *w)
1608	{	1714	{
1609	ev_clear_pending (EV_A_ (W)w);	1715	clear_pending (EV_A_ (W)w);
1610	if (expect_false (!ev_is_active (w)))	1716	if (expect_false (!ev_is_active (w)))
1611	return;	1717	return;
1612		1718
1613	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1719	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1614		1720
1615	{	1721	{
1616	int active = ((W)w)->active;	1722	int active = ((W)w)->active;
1617		1723
1618	if (expect_true (--active < --periodiccnt))	1724	if (expect_true (--active < --periodiccnt))
1619	{	1725	{
1620	periodics [active] = periodics [periodiccnt];	1726	periodics [active] = periodics [periodiccnt];
1621	adjustheap ((WT *)periodics, periodiccnt, active);	1727	adjustheap (periodics, periodiccnt, active);
1622	}	1728	}
1623	}	1729	}
1624		1730
1625	ev_stop (EV_A_ (W)w);	1731	ev_stop (EV_A_ (W)w);
1626	}	1732	}
1627		1733
1628	void	1734	void noinline
1629	ev_periodic_again (EV_P_ ev_periodic *w)	1735	ev_periodic_again (EV_P_ ev_periodic *w)
1630	{	1736	{
1631	/* TODO: use adjustheap and recalculation */	1737	/* TODO: use adjustheap and recalculation */
1632	ev_periodic_stop (EV_A_ w);	1738	ev_periodic_stop (EV_A_ w);
1633	ev_periodic_start (EV_A_ w);	1739	ev_periodic_start (EV_A_ w);
…		…
1636		1742
1637	#ifndef SA_RESTART	1743	#ifndef SA_RESTART
1638	# define SA_RESTART 0	1744	# define SA_RESTART 0
1639	#endif	1745	#endif
1640		1746
1641	void	1747	void noinline
1642	ev_signal_start (EV_P_ ev_signal *w)	1748	ev_signal_start (EV_P_ ev_signal *w)
1643	{	1749	{
1644	#if EV_MULTIPLICITY	1750	#if EV_MULTIPLICITY
1645	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1751	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1646	#endif	1752	#endif
1647	if (expect_false (ev_is_active (w)))	1753	if (expect_false (ev_is_active (w)))
1648	return;	1754	return;
1649		1755
1650	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1756	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1651		1757
		1758	{
		1759	#ifndef _WIN32
		1760	sigset_t full, prev;
		1761	sigfillset (&full);
		1762	sigprocmask (SIG_SETMASK, &full, &prev);
		1763	#endif
		1764
		1765	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1766
		1767	#ifndef _WIN32
		1768	sigprocmask (SIG_SETMASK, &prev, 0);
		1769	#endif
		1770	}
		1771
1652	ev_start (EV_A_ (W)w, 1);	1772	ev_start (EV_A_ (W)w, 1);
1653	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1654	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1773	wlist_add (&signals [w->signum - 1].head, (WL)w);
1655		1774
1656	if (!((WL)w)->next)	1775	if (!((WL)w)->next)
1657	{	1776	{
1658	#if _WIN32	1777	#if _WIN32
1659	signal (w->signum, sighandler);	1778	signal (w->signum, sighandler);
…		…
1665	sigaction (w->signum, &sa, 0);	1784	sigaction (w->signum, &sa, 0);
1666	#endif	1785	#endif
1667	}	1786	}
1668	}	1787	}
1669		1788
1670	void	1789	void noinline
1671	ev_signal_stop (EV_P_ ev_signal *w)	1790	ev_signal_stop (EV_P_ ev_signal *w)
1672	{	1791	{
1673	ev_clear_pending (EV_A_ (W)w);	1792	clear_pending (EV_A_ (W)w);
1674	if (expect_false (!ev_is_active (w)))	1793	if (expect_false (!ev_is_active (w)))
1675	return;	1794	return;
1676		1795
1677	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1796	wlist_del (&signals [w->signum - 1].head, (WL)w);
1678	ev_stop (EV_A_ (W)w);	1797	ev_stop (EV_A_ (W)w);
1679		1798
1680	if (!signals [w->signum - 1].head)	1799	if (!signals [w->signum - 1].head)
1681	signal (w->signum, SIG_DFL);	1800	signal (w->signum, SIG_DFL);
1682	}	1801	}
…		…
1689	#endif	1808	#endif
1690	if (expect_false (ev_is_active (w)))	1809	if (expect_false (ev_is_active (w)))
1691	return;	1810	return;
1692		1811
1693	ev_start (EV_A_ (W)w, 1);	1812	ev_start (EV_A_ (W)w, 1);
1694	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1813	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1695	}	1814	}
1696		1815
1697	void	1816	void
1698	ev_child_stop (EV_P_ ev_child *w)	1817	ev_child_stop (EV_P_ ev_child *w)
1699	{	1818	{
1700	ev_clear_pending (EV_A_ (W)w);	1819	clear_pending (EV_A_ (W)w);
1701	if (expect_false (!ev_is_active (w)))	1820	if (expect_false (!ev_is_active (w)))
1702	return;	1821	return;
1703		1822
1704	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1823	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1705	ev_stop (EV_A_ (W)w);	1824	ev_stop (EV_A_ (W)w);
1706	}	1825	}
1707		1826
1708	#if EV_STAT_ENABLE	1827	#if EV_STAT_ENABLE
1709		1828
…		…
1713	# endif	1832	# endif
1714		1833
1715	#define DEF_STAT_INTERVAL 5.0074891	1834	#define DEF_STAT_INTERVAL 5.0074891
1716	#define MIN_STAT_INTERVAL 0.1074891	1835	#define MIN_STAT_INTERVAL 0.1074891
1717		1836
1718	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	1837	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1719		1838
1720	#if EV_USE_INOTIFY	1839	#if EV_USE_INOTIFY
1721	# define EV_INOTIFY_BUFSIZE ((PATH_MAX + sizeof (struct inotify_event)) + 2048)	1840	# define EV_INOTIFY_BUFSIZE 8192
1722		1841
1723	static void noinline	1842	static void noinline
1724	infy_add (EV_P_ ev_stat *w)	1843	infy_add (EV_P_ ev_stat *w)
1725	{	1844	{
1726	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);	1845	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);
…		…
1728	if (w->wd < 0)	1847	if (w->wd < 0)
1729	{	1848	{
1730	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	1849	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1731		1850
1732	/* monitor some parent directory for speedup hints */	1851	/* monitor some parent directory for speedup hints */
1733	if (errno == ENOENT \|\| errno == EACCES)	1852	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
1734	{	1853	{
1735	char path [PATH_MAX];	1854	char path [4096];
1736	strcpy (path, w->path);	1855	strcpy (path, w->path);
1737		1856
1738	do	1857	do
1739	{	1858	{
1740	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF	1859	int mask = IN_MASK_ADD \| IN_DELETE_SELF \| IN_MOVE_SELF
…		…
1744		1863
1745	if (!pend)	1864	if (!pend)
1746	break; /* whoops, no '/', complain to your admin */	1865	break; /* whoops, no '/', complain to your admin */
1747		1866
1748	*pend = 0;	1867	*pend = 0;
1749	w->wd = inotify_add_watch (fs_fd, path, IN_DELETE_SELF \| IN_CREATE \| IN_MOVED_TO \| IN_MASK_ADD);	1868	w->wd = inotify_add_watch (fs_fd, path, mask);
1750	}	1869	}
1751	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	1870	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
1752	}	1871	}
1753	}	1872	}
1754	else	1873	else
…		…
1759	}	1878	}
1760		1879
1761	static void noinline	1880	static void noinline
1762	infy_del (EV_P_ ev_stat *w)	1881	infy_del (EV_P_ ev_stat *w)
1763	{	1882	{
1764	WL w_;
1765	int slot;	1883	int slot;
1766	int wd = w->wd;	1884	int wd = w->wd;
1767		1885
1768	if (wd < 0)	1886	if (wd < 0)
1769	return;	1887	return;
…		…
1798	{	1916	{
1799	w->wd = -1;	1917	w->wd = -1;
1800	infy_add (EV_A_ w); /* re-add, no matter what */	1918	infy_add (EV_A_ w); /* re-add, no matter what */
1801	}	1919	}
1802		1920
1803	stat_timer_cb (EV_P_ &w->timer, 0);	1921	stat_timer_cb (EV_A_ &w->timer, 0);
1804	}	1922	}
1805	}	1923	}
1806	}	1924	}
1807	}	1925	}
1808		1926
…		…
1832	ev_set_priority (&fs_w, EV_MAXPRI);	1950	ev_set_priority (&fs_w, EV_MAXPRI);
1833	ev_io_start (EV_A_ &fs_w);	1951	ev_io_start (EV_A_ &fs_w);
1834	}	1952	}
1835	}	1953	}
1836		1954
		1955	void inline_size
		1956	infy_fork (EV_P)
		1957	{
		1958	int slot;
		1959
		1960	if (fs_fd < 0)
		1961	return;
		1962
		1963	close (fs_fd);
		1964	fs_fd = inotify_init ();
		1965
		1966	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1967	{
		1968	WL w_ = fs_hash [slot].head;
		1969	fs_hash [slot].head = 0;
		1970
		1971	while (w_)
		1972	{
		1973	ev_stat w = (ev_stat )w_;
		1974	w_ = w_->next; /* lets us add this watcher */
		1975
		1976	w->wd = -1;
		1977
		1978	if (fs_fd >= 0)
		1979	infy_add (EV_A_ w); /* re-add, no matter what */
		1980	else
		1981	ev_timer_start (EV_A_ &w->timer);
		1982	}
		1983
		1984	}
		1985	}
		1986
1837	#endif	1987	#endif
1838		1988
1839	void	1989	void
1840	ev_stat_stat (EV_P_ ev_stat *w)	1990	ev_stat_stat (EV_P_ ev_stat *w)
1841	{	1991	{
…		…
1843	w->attr.st_nlink = 0;	1993	w->attr.st_nlink = 0;
1844	else if (!w->attr.st_nlink)	1994	else if (!w->attr.st_nlink)
1845	w->attr.st_nlink = 1;	1995	w->attr.st_nlink = 1;
1846	}	1996	}
1847		1997
1848	void noinline	1998	static void noinline
1849	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	1999	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1850	{	2000	{
1851	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	2001	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
1852		2002
1853	/* we copy this here each the time so that */	2003	/* we copy this here each the time so that */
1854	/* prev has the old value when the callback gets invoked */	2004	/* prev has the old value when the callback gets invoked */
1855	w->prev = w->attr;	2005	w->prev = w->attr;
1856	ev_stat_stat (EV_A_ w);	2006	ev_stat_stat (EV_A_ w);
1857		2007
1858	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2008	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2009	if (
		2010	w->prev.st_dev != w->attr.st_dev
		2011	\|\| w->prev.st_ino != w->attr.st_ino
		2012	\|\| w->prev.st_mode != w->attr.st_mode
		2013	\|\| w->prev.st_nlink != w->attr.st_nlink
		2014	\|\| w->prev.st_uid != w->attr.st_uid
		2015	\|\| w->prev.st_gid != w->attr.st_gid
		2016	\|\| w->prev.st_rdev != w->attr.st_rdev
		2017	\|\| w->prev.st_size != w->attr.st_size
		2018	\|\| w->prev.st_atime != w->attr.st_atime
		2019	\|\| w->prev.st_mtime != w->attr.st_mtime
		2020	\|\| w->prev.st_ctime != w->attr.st_ctime
1859	{	2021	) {
1860	#if EV_USE_INOTIFY	2022	#if EV_USE_INOTIFY
1861	infy_del (EV_A_ w);	2023	infy_del (EV_A_ w);
1862	infy_add (EV_A_ w);	2024	infy_add (EV_A_ w);
1863	ev_stat_stat (EV_A_ w); /* avoid race... */	2025	ev_stat_stat (EV_A_ w); /* avoid race... */
1864	#endif	2026	#endif
…		…
1898	}	2060	}
1899		2061
1900	void	2062	void
1901	ev_stat_stop (EV_P_ ev_stat *w)	2063	ev_stat_stop (EV_P_ ev_stat *w)
1902	{	2064	{
1903	ev_clear_pending (EV_A_ (W)w);	2065	clear_pending (EV_A_ (W)w);
1904	if (expect_false (!ev_is_active (w)))	2066	if (expect_false (!ev_is_active (w)))
1905	return;	2067	return;
1906		2068
1907	#if EV_USE_INOTIFY	2069	#if EV_USE_INOTIFY
1908	infy_del (EV_A_ w);	2070	infy_del (EV_A_ w);
…		…
1911		2073
1912	ev_stop (EV_A_ (W)w);	2074	ev_stop (EV_A_ (W)w);
1913	}	2075	}
1914	#endif	2076	#endif
1915		2077
		2078	#if EV_IDLE_ENABLE
1916	void	2079	void
1917	ev_idle_start (EV_P_ ev_idle *w)	2080	ev_idle_start (EV_P_ ev_idle *w)
1918	{	2081	{
1919	if (expect_false (ev_is_active (w)))	2082	if (expect_false (ev_is_active (w)))
1920	return;	2083	return;
1921		2084
		2085	pri_adjust (EV_A_ (W)w);
		2086
		2087	{
		2088	int active = ++idlecnt [ABSPRI (w)];
		2089
		2090	++idleall;
1922	ev_start (EV_A_ (W)w, ++idlecnt);	2091	ev_start (EV_A_ (W)w, active);
		2092
1923	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2093	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1924	idles [idlecnt - 1] = w;	2094	idles [ABSPRI (w)][active - 1] = w;
		2095	}
1925	}	2096	}
1926		2097
1927	void	2098	void
1928	ev_idle_stop (EV_P_ ev_idle *w)	2099	ev_idle_stop (EV_P_ ev_idle *w)
1929	{	2100	{
1930	ev_clear_pending (EV_A_ (W)w);	2101	clear_pending (EV_A_ (W)w);
1931	if (expect_false (!ev_is_active (w)))	2102	if (expect_false (!ev_is_active (w)))
1932	return;	2103	return;
1933		2104
1934	{	2105	{
1935	int active = ((W)w)->active;	2106	int active = ((W)w)->active;
1936	idles [active - 1] = idles [--idlecnt];	2107
		2108	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1937	((W)idles [active - 1])->active = active;	2109	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2110
		2111	ev_stop (EV_A_ (W)w);
		2112	--idleall;
1938	}	2113	}
1939
1940	ev_stop (EV_A_ (W)w);
1941	}	2114	}
		2115	#endif
1942		2116
1943	void	2117	void
1944	ev_prepare_start (EV_P_ ev_prepare *w)	2118	ev_prepare_start (EV_P_ ev_prepare *w)
1945	{	2119	{
1946	if (expect_false (ev_is_active (w)))	2120	if (expect_false (ev_is_active (w)))
…		…
1952	}	2126	}
1953		2127
1954	void	2128	void
1955	ev_prepare_stop (EV_P_ ev_prepare *w)	2129	ev_prepare_stop (EV_P_ ev_prepare *w)
1956	{	2130	{
1957	ev_clear_pending (EV_A_ (W)w);	2131	clear_pending (EV_A_ (W)w);
1958	if (expect_false (!ev_is_active (w)))	2132	if (expect_false (!ev_is_active (w)))
1959	return;	2133	return;
1960		2134
1961	{	2135	{
1962	int active = ((W)w)->active;	2136	int active = ((W)w)->active;
…		…
1979	}	2153	}
1980		2154
1981	void	2155	void
1982	ev_check_stop (EV_P_ ev_check *w)	2156	ev_check_stop (EV_P_ ev_check *w)
1983	{	2157	{
1984	ev_clear_pending (EV_A_ (W)w);	2158	clear_pending (EV_A_ (W)w);
1985	if (expect_false (!ev_is_active (w)))	2159	if (expect_false (!ev_is_active (w)))
1986	return;	2160	return;
1987		2161
1988	{	2162	{
1989	int active = ((W)w)->active;	2163	int active = ((W)w)->active;
…		…
2031	}	2205	}
2032		2206
2033	void	2207	void
2034	ev_embed_stop (EV_P_ ev_embed *w)	2208	ev_embed_stop (EV_P_ ev_embed *w)
2035	{	2209	{
2036	ev_clear_pending (EV_A_ (W)w);	2210	clear_pending (EV_A_ (W)w);
2037	if (expect_false (!ev_is_active (w)))	2211	if (expect_false (!ev_is_active (w)))
2038	return;	2212	return;
2039		2213
2040	ev_io_stop (EV_A_ &w->io);	2214	ev_io_stop (EV_A_ &w->io);
2041		2215
…		…
2056	}	2230	}
2057		2231
2058	void	2232	void
2059	ev_fork_stop (EV_P_ ev_fork *w)	2233	ev_fork_stop (EV_P_ ev_fork *w)
2060	{	2234	{
2061	ev_clear_pending (EV_A_ (W)w);	2235	clear_pending (EV_A_ (W)w);
2062	if (expect_false (!ev_is_active (w)))	2236	if (expect_false (!ev_is_active (w)))
2063	return;	2237	return;
2064		2238
2065	{	2239	{
2066	int active = ((W)w)->active;	2240	int active = ((W)w)->active;

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Comparing libev/ev.c (file contents): Revision 1.152 by root, Wed Nov 28 11:15:55 2007 UTC vs. Revision 1.183 by root, Wed Dec 12 05:11:56 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.152 by root, Wed Nov 28 11:15:55 2007 UTC vs.
Revision 1.183 by root, Wed Dec 12 05:11:56 2007 UTC