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

Comparing libev/ev.c (file contents):
Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC vs.
Revision 1.180 by root, Tue Dec 11 22:04:55 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	{
…		…
589	static void noinline	623	static void noinline
590	fd_rearm_all (EV_P)	624	fd_rearm_all (EV_P)
591	{	625	{
592	int fd;	626	int fd;
593		627
594	/* this should be highly optimised to not do anything but set a flag */
595	for (fd = 0; fd < anfdmax; ++fd)	628	for (fd = 0; fd < anfdmax; ++fd)
596	if (anfds [fd].events)	629	if (anfds [fd].events)
597	{	630	{
598	anfds [fd].events = 0;	631	anfds [fd].events = 0;
599	fd_change (EV_A_ fd);	632	fd_change (EV_A_ fd);
…		…
605	void inline_speed	638	void inline_speed
606	upheap (WT *heap, int k)	639	upheap (WT *heap, int k)
607	{	640	{
608	WT w = heap [k];	641	WT w = heap [k];
609		642
610	while (k && heap [k >> 1]->at > w->at)	643	while (k)
611	{	644	{
		645	int p = (k - 1) >> 1;
		646
		647	if (heap [p]->at <= w->at)
		648	break;
		649
612	heap [k] = heap [k >> 1];	650	heap [k] = heap [p];
613	((W)heap [k])->active = k + 1;	651	((W)heap [k])->active = k + 1;
614	k >>= 1;	652	k = p;
615	}	653	}
616		654
617	heap [k] = w;	655	heap [k] = w;
618	((W)heap [k])->active = k + 1;	656	((W)heap [k])->active = k + 1;
619		657
…		…
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);
…		…
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	{
…		…
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 ((WT *)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 ((WT *)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 */
…		…
1223	ev_periodic *w = periodics [i];	1281	ev_periodic *w = 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 ((WT *)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)))
…		…
1500	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1603	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1501		1604
1502	fd_change (EV_A_ fd);	1605	fd_change (EV_A_ fd);
1503	}	1606	}
1504		1607
1505	void	1608	void noinline
1506	ev_io_stop (EV_P_ ev_io *w)	1609	ev_io_stop (EV_P_ ev_io *w)
1507	{	1610	{
1508	ev_clear_pending (EV_A_ (W)w);	1611	clear_pending (EV_A_ (W)w);
1509	if (expect_false (!ev_is_active (w)))	1612	if (expect_false (!ev_is_active (w)))
1510	return;	1613	return;
1511		1614
1512	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1615	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1513		1616
…		…
1515	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1516		1619
1517	fd_change (EV_A_ w->fd);	1620	fd_change (EV_A_ w->fd);
1518	}	1621	}
1519		1622
1520	void	1623	void noinline
1521	ev_timer_start (EV_P_ ev_timer *w)	1624	ev_timer_start (EV_P_ ev_timer *w)
1522	{	1625	{
1523	if (expect_false (ev_is_active (w)))	1626	if (expect_false (ev_is_active (w)))
1524	return;	1627	return;
1525		1628
…		…
1533	upheap ((WT *)timers, timercnt - 1);	1636	upheap ((WT *)timers, timercnt - 1);
1534		1637
1535	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1638	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1536	}	1639	}
1537		1640
1538	void	1641	void noinline
1539	ev_timer_stop (EV_P_ ev_timer *w)	1642	ev_timer_stop (EV_P_ ev_timer *w)
1540	{	1643	{
1541	ev_clear_pending (EV_A_ (W)w);	1644	clear_pending (EV_A_ (W)w);
1542	if (expect_false (!ev_is_active (w)))	1645	if (expect_false (!ev_is_active (w)))
1543	return;	1646	return;
1544		1647
1545	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1648	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1546		1649
…		…
1557	((WT)w)->at -= mn_now;	1660	((WT)w)->at -= mn_now;
1558		1661
1559	ev_stop (EV_A_ (W)w);	1662	ev_stop (EV_A_ (W)w);
1560	}	1663	}
1561		1664
1562	void	1665	void noinline
1563	ev_timer_again (EV_P_ ev_timer *w)	1666	ev_timer_again (EV_P_ ev_timer *w)
1564	{	1667	{
1565	if (ev_is_active (w))	1668	if (ev_is_active (w))
1566	{	1669	{
1567	if (w->repeat)	1670	if (w->repeat)
…		…
1578	ev_timer_start (EV_A_ w);	1681	ev_timer_start (EV_A_ w);
1579	}	1682	}
1580	}	1683	}
1581		1684
1582	#if EV_PERIODIC_ENABLE	1685	#if EV_PERIODIC_ENABLE
1583	void	1686	void noinline
1584	ev_periodic_start (EV_P_ ev_periodic *w)	1687	ev_periodic_start (EV_P_ ev_periodic *w)
1585	{	1688	{
1586	if (expect_false (ev_is_active (w)))	1689	if (expect_false (ev_is_active (w)))
1587	return;	1690	return;
1588		1691
…		…
1590	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1693	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1591	else if (w->interval)	1694	else if (w->interval)
1592	{	1695	{
1593	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1696	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 */	1697	/* 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;	1698	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1596	}	1699	}
		1700	else
		1701	((WT)w)->at = w->offset;
1597		1702
1598	ev_start (EV_A_ (W)w, ++periodiccnt);	1703	ev_start (EV_A_ (W)w, ++periodiccnt);
1599	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1704	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1600	periodics [periodiccnt - 1] = w;	1705	periodics [periodiccnt - 1] = w;
1601	upheap ((WT *)periodics, periodiccnt - 1);	1706	upheap ((WT *)periodics, periodiccnt - 1);
1602		1707
1603	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1708	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1604	}	1709	}
1605		1710
1606	void	1711	void noinline
1607	ev_periodic_stop (EV_P_ ev_periodic *w)	1712	ev_periodic_stop (EV_P_ ev_periodic *w)
1608	{	1713	{
1609	ev_clear_pending (EV_A_ (W)w);	1714	clear_pending (EV_A_ (W)w);
1610	if (expect_false (!ev_is_active (w)))	1715	if (expect_false (!ev_is_active (w)))
1611	return;	1716	return;
1612		1717
1613	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1718	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1614		1719
…		…
1623	}	1728	}
1624		1729
1625	ev_stop (EV_A_ (W)w);	1730	ev_stop (EV_A_ (W)w);
1626	}	1731	}
1627		1732
1628	void	1733	void noinline
1629	ev_periodic_again (EV_P_ ev_periodic *w)	1734	ev_periodic_again (EV_P_ ev_periodic *w)
1630	{	1735	{
1631	/* TODO: use adjustheap and recalculation */	1736	/* TODO: use adjustheap and recalculation */
1632	ev_periodic_stop (EV_A_ w);	1737	ev_periodic_stop (EV_A_ w);
1633	ev_periodic_start (EV_A_ w);	1738	ev_periodic_start (EV_A_ w);
…		…
1636		1741
1637	#ifndef SA_RESTART	1742	#ifndef SA_RESTART
1638	# define SA_RESTART 0	1743	# define SA_RESTART 0
1639	#endif	1744	#endif
1640		1745
1641	void	1746	void noinline
1642	ev_signal_start (EV_P_ ev_signal *w)	1747	ev_signal_start (EV_P_ ev_signal *w)
1643	{	1748	{
1644	#if EV_MULTIPLICITY	1749	#if EV_MULTIPLICITY
1645	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1750	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1646	#endif	1751	#endif
1647	if (expect_false (ev_is_active (w)))	1752	if (expect_false (ev_is_active (w)))
1648	return;	1753	return;
1649		1754
1650	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1755	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1651		1756
		1757	{
		1758	#ifndef _WIN32
		1759	sigset_t full, prev;
		1760	sigfillset (&full);
		1761	sigprocmask (SIG_SETMASK, &full, &prev);
		1762	#endif
		1763
		1764	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1765
		1766	#ifndef _WIN32
		1767	sigprocmask (SIG_SETMASK, &prev, 0);
		1768	#endif
		1769	}
		1770
1652	ev_start (EV_A_ (W)w, 1);	1771	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);	1772	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1655		1773
1656	if (!((WL)w)->next)	1774	if (!((WL)w)->next)
1657	{	1775	{
1658	#if _WIN32	1776	#if _WIN32
…		…
1665	sigaction (w->signum, &sa, 0);	1783	sigaction (w->signum, &sa, 0);
1666	#endif	1784	#endif
1667	}	1785	}
1668	}	1786	}
1669		1787
1670	void	1788	void noinline
1671	ev_signal_stop (EV_P_ ev_signal *w)	1789	ev_signal_stop (EV_P_ ev_signal *w)
1672	{	1790	{
1673	ev_clear_pending (EV_A_ (W)w);	1791	clear_pending (EV_A_ (W)w);
1674	if (expect_false (!ev_is_active (w)))	1792	if (expect_false (!ev_is_active (w)))
1675	return;	1793	return;
1676		1794
1677	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1795	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1678	ev_stop (EV_A_ (W)w);	1796	ev_stop (EV_A_ (W)w);
…		…
1695	}	1813	}
1696		1814
1697	void	1815	void
1698	ev_child_stop (EV_P_ ev_child *w)	1816	ev_child_stop (EV_P_ ev_child *w)
1699	{	1817	{
1700	ev_clear_pending (EV_A_ (W)w);	1818	clear_pending (EV_A_ (W)w);
1701	if (expect_false (!ev_is_active (w)))	1819	if (expect_false (!ev_is_active (w)))
1702	return;	1820	return;
1703		1821
1704	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1822	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1705	ev_stop (EV_A_ (W)w);	1823	ev_stop (EV_A_ (W)w);
…		…
1713	# endif	1831	# endif
1714		1832
1715	#define DEF_STAT_INTERVAL 5.0074891	1833	#define DEF_STAT_INTERVAL 5.0074891
1716	#define MIN_STAT_INTERVAL 0.1074891	1834	#define MIN_STAT_INTERVAL 0.1074891
1717		1835
1718	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	1836	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1719		1837
1720	#if EV_USE_INOTIFY	1838	#if EV_USE_INOTIFY
1721	# define EV_INOTIFY_BUFSIZE 8192	1839	# define EV_INOTIFY_BUFSIZE 8192
1722		1840
1723	static void noinline	1841	static void noinline
…		…
1831	ev_set_priority (&fs_w, EV_MAXPRI);	1949	ev_set_priority (&fs_w, EV_MAXPRI);
1832	ev_io_start (EV_A_ &fs_w);	1950	ev_io_start (EV_A_ &fs_w);
1833	}	1951	}
1834	}	1952	}
1835		1953
		1954	void inline_size
		1955	infy_fork (EV_P)
		1956	{
		1957	int slot;
		1958
		1959	if (fs_fd < 0)
		1960	return;
		1961
		1962	close (fs_fd);
		1963	fs_fd = inotify_init ();
		1964
		1965	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1966	{
		1967	WL w_ = fs_hash [slot].head;
		1968	fs_hash [slot].head = 0;
		1969
		1970	while (w_)
		1971	{
		1972	ev_stat w = (ev_stat )w_;
		1973	w_ = w_->next; /* lets us add this watcher */
		1974
		1975	w->wd = -1;
		1976
		1977	if (fs_fd >= 0)
		1978	infy_add (EV_A_ w); /* re-add, no matter what */
		1979	else
		1980	ev_timer_start (EV_A_ &w->timer);
		1981	}
		1982
		1983	}
		1984	}
		1985
1836	#endif	1986	#endif
1837		1987
1838	void	1988	void
1839	ev_stat_stat (EV_P_ ev_stat *w)	1989	ev_stat_stat (EV_P_ ev_stat *w)
1840	{	1990	{
…		…
1842	w->attr.st_nlink = 0;	1992	w->attr.st_nlink = 0;
1843	else if (!w->attr.st_nlink)	1993	else if (!w->attr.st_nlink)
1844	w->attr.st_nlink = 1;	1994	w->attr.st_nlink = 1;
1845	}	1995	}
1846		1996
1847	void noinline	1997	static void noinline
1848	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	1998	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1849	{	1999	{
1850	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	2000	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
1851		2001
1852	/* we copy this here each the time so that */	2002	/* we copy this here each the time so that */
1853	/* prev has the old value when the callback gets invoked */	2003	/* prev has the old value when the callback gets invoked */
1854	w->prev = w->attr;	2004	w->prev = w->attr;
1855	ev_stat_stat (EV_A_ w);	2005	ev_stat_stat (EV_A_ w);
1856		2006
1857	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2007	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2008	if (
		2009	w->prev.st_dev != w->attr.st_dev
		2010	\|\| w->prev.st_ino != w->attr.st_ino
		2011	\|\| w->prev.st_mode != w->attr.st_mode
		2012	\|\| w->prev.st_nlink != w->attr.st_nlink
		2013	\|\| w->prev.st_uid != w->attr.st_uid
		2014	\|\| w->prev.st_gid != w->attr.st_gid
		2015	\|\| w->prev.st_rdev != w->attr.st_rdev
		2016	\|\| w->prev.st_size != w->attr.st_size
		2017	\|\| w->prev.st_atime != w->attr.st_atime
		2018	\|\| w->prev.st_mtime != w->attr.st_mtime
		2019	\|\| w->prev.st_ctime != w->attr.st_ctime
1858	{	2020	) {
1859	#if EV_USE_INOTIFY	2021	#if EV_USE_INOTIFY
1860	infy_del (EV_A_ w);	2022	infy_del (EV_A_ w);
1861	infy_add (EV_A_ w);	2023	infy_add (EV_A_ w);
1862	ev_stat_stat (EV_A_ w); /* avoid race... */	2024	ev_stat_stat (EV_A_ w); /* avoid race... */
1863	#endif	2025	#endif
…		…
1897	}	2059	}
1898		2060
1899	void	2061	void
1900	ev_stat_stop (EV_P_ ev_stat *w)	2062	ev_stat_stop (EV_P_ ev_stat *w)
1901	{	2063	{
1902	ev_clear_pending (EV_A_ (W)w);	2064	clear_pending (EV_A_ (W)w);
1903	if (expect_false (!ev_is_active (w)))	2065	if (expect_false (!ev_is_active (w)))
1904	return;	2066	return;
1905		2067
1906	#if EV_USE_INOTIFY	2068	#if EV_USE_INOTIFY
1907	infy_del (EV_A_ w);	2069	infy_del (EV_A_ w);
…		…
1910		2072
1911	ev_stop (EV_A_ (W)w);	2073	ev_stop (EV_A_ (W)w);
1912	}	2074	}
1913	#endif	2075	#endif
1914		2076
		2077	#if EV_IDLE_ENABLE
1915	void	2078	void
1916	ev_idle_start (EV_P_ ev_idle *w)	2079	ev_idle_start (EV_P_ ev_idle *w)
1917	{	2080	{
1918	if (expect_false (ev_is_active (w)))	2081	if (expect_false (ev_is_active (w)))
1919	return;	2082	return;
1920		2083
		2084	pri_adjust (EV_A_ (W)w);
		2085
		2086	{
		2087	int active = ++idlecnt [ABSPRI (w)];
		2088
		2089	++idleall;
1921	ev_start (EV_A_ (W)w, ++idlecnt);	2090	ev_start (EV_A_ (W)w, active);
		2091
1922	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2092	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1923	idles [idlecnt - 1] = w;	2093	idles [ABSPRI (w)][active - 1] = w;
		2094	}
1924	}	2095	}
1925		2096
1926	void	2097	void
1927	ev_idle_stop (EV_P_ ev_idle *w)	2098	ev_idle_stop (EV_P_ ev_idle *w)
1928	{	2099	{
1929	ev_clear_pending (EV_A_ (W)w);	2100	clear_pending (EV_A_ (W)w);
1930	if (expect_false (!ev_is_active (w)))	2101	if (expect_false (!ev_is_active (w)))
1931	return;	2102	return;
1932		2103
1933	{	2104	{
1934	int active = ((W)w)->active;	2105	int active = ((W)w)->active;
1935	idles [active - 1] = idles [--idlecnt];	2106
		2107	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1936	((W)idles [active - 1])->active = active;	2108	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2109
		2110	ev_stop (EV_A_ (W)w);
		2111	--idleall;
1937	}	2112	}
1938
1939	ev_stop (EV_A_ (W)w);
1940	}	2113	}
		2114	#endif
1941		2115
1942	void	2116	void
1943	ev_prepare_start (EV_P_ ev_prepare *w)	2117	ev_prepare_start (EV_P_ ev_prepare *w)
1944	{	2118	{
1945	if (expect_false (ev_is_active (w)))	2119	if (expect_false (ev_is_active (w)))
…		…
1951	}	2125	}
1952		2126
1953	void	2127	void
1954	ev_prepare_stop (EV_P_ ev_prepare *w)	2128	ev_prepare_stop (EV_P_ ev_prepare *w)
1955	{	2129	{
1956	ev_clear_pending (EV_A_ (W)w);	2130	clear_pending (EV_A_ (W)w);
1957	if (expect_false (!ev_is_active (w)))	2131	if (expect_false (!ev_is_active (w)))
1958	return;	2132	return;
1959		2133
1960	{	2134	{
1961	int active = ((W)w)->active;	2135	int active = ((W)w)->active;
…		…
1978	}	2152	}
1979		2153
1980	void	2154	void
1981	ev_check_stop (EV_P_ ev_check *w)	2155	ev_check_stop (EV_P_ ev_check *w)
1982	{	2156	{
1983	ev_clear_pending (EV_A_ (W)w);	2157	clear_pending (EV_A_ (W)w);
1984	if (expect_false (!ev_is_active (w)))	2158	if (expect_false (!ev_is_active (w)))
1985	return;	2159	return;
1986		2160
1987	{	2161	{
1988	int active = ((W)w)->active;	2162	int active = ((W)w)->active;
…		…
2030	}	2204	}
2031		2205
2032	void	2206	void
2033	ev_embed_stop (EV_P_ ev_embed *w)	2207	ev_embed_stop (EV_P_ ev_embed *w)
2034	{	2208	{
2035	ev_clear_pending (EV_A_ (W)w);	2209	clear_pending (EV_A_ (W)w);
2036	if (expect_false (!ev_is_active (w)))	2210	if (expect_false (!ev_is_active (w)))
2037	return;	2211	return;
2038		2212
2039	ev_io_stop (EV_A_ &w->io);	2213	ev_io_stop (EV_A_ &w->io);
2040		2214
…		…
2055	}	2229	}
2056		2230
2057	void	2231	void
2058	ev_fork_stop (EV_P_ ev_fork *w)	2232	ev_fork_stop (EV_P_ ev_fork *w)
2059	{	2233	{
2060	ev_clear_pending (EV_A_ (W)w);	2234	clear_pending (EV_A_ (W)w);
2061	if (expect_false (!ev_is_active (w)))	2235	if (expect_false (!ev_is_active (w)))
2062	return;	2236	return;
2063		2237
2064	{	2238	{
2065	int active = ((W)w)->active;	2239	int active = ((W)w)->active;

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Comparing libev/ev.c (file contents): Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC vs. Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.153 by root, Wed Nov 28 11:41:18 2007 UTC vs.
Revision 1.180 by root, Tue Dec 11 22:04:55 2007 UTC