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

Comparing libev/ev.c (file contents):
Revision 1.244 by root, Tue May 20 23:49:41 2008 UTC vs.
Revision 1.264 by root, Mon Oct 13 23:20:12 2008 UTC

…		…
126	# define EV_USE_EVENTFD 1	126	# define EV_USE_EVENTFD 1
127	# else	127	# else
128	# define EV_USE_EVENTFD 0	128	# define EV_USE_EVENTFD 0
129	# endif	129	# endif
130	# endif	130	# endif
131		131
132	#endif	132	#endif
133		133
134	#include <math.h>	134	#include <math.h>
135	#include <stdlib.h>	135	#include <stdlib.h>
136	#include <fcntl.h>	136	#include <fcntl.h>
…		…
154	#ifndef _WIN32	154	#ifndef _WIN32
155	# include <sys/time.h>	155	# include <sys/time.h>
156	# include <sys/wait.h>	156	# include <sys/wait.h>
157	# include <unistd.h>	157	# include <unistd.h>
158	#else	158	#else
		159	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	160	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	161	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	162	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	163	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	164	# endif
164	#endif	165	#endif
165		166
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	167	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		168
168	#ifndef EV_USE_MONOTONIC	169	#ifndef EV_USE_MONOTONIC
		170	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		171	# define EV_USE_MONOTONIC 1
		172	# else
169	# define EV_USE_MONOTONIC 0	173	# define EV_USE_MONOTONIC 0
		174	# endif
170	#endif	175	#endif
171		176
172	#ifndef EV_USE_REALTIME	177	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	178	# define EV_USE_REALTIME 0
174	#endif	179	#endif
175		180
176	#ifndef EV_USE_NANOSLEEP	181	#ifndef EV_USE_NANOSLEEP
		182	# if _POSIX_C_SOURCE >= 199309L
		183	# define EV_USE_NANOSLEEP 1
		184	# else
177	# define EV_USE_NANOSLEEP 0	185	# define EV_USE_NANOSLEEP 0
		186	# endif
178	#endif	187	#endif
179		188
180	#ifndef EV_USE_SELECT	189	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	190	# define EV_USE_SELECT 1
182	#endif	191	#endif
…		…
235	# else	244	# else
236	# define EV_USE_EVENTFD 0	245	# define EV_USE_EVENTFD 0
237	# endif	246	# endif
238	#endif	247	#endif
239		248
		249	#if 0 /* debugging */
		250	# define EV_VERIFY 3
		251	# define EV_USE_4HEAP 1
		252	# define EV_HEAP_CACHE_AT 1
		253	#endif
		254
		255	#ifndef EV_VERIFY
		256	# define EV_VERIFY !EV_MINIMAL
		257	#endif
		258
240	#ifndef EV_USE_4HEAP	259	#ifndef EV_USE_4HEAP
241	# define EV_USE_4HEAP !EV_MINIMAL	260	# define EV_USE_4HEAP !EV_MINIMAL
242	#endif	261	#endif
243		262
244	#ifndef EV_HEAP_CACHE_AT	263	#ifndef EV_HEAP_CACHE_AT
…		…
267	# include <sys/select.h>	286	# include <sys/select.h>
268	# endif	287	# endif
269	#endif	288	#endif
270		289
271	#if EV_USE_INOTIFY	290	#if EV_USE_INOTIFY
		291	# include <sys/utsname.h>
272	# include <sys/inotify.h>	292	# include <sys/inotify.h>
		293	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		294	# ifndef IN_DONT_FOLLOW
		295	# undef EV_USE_INOTIFY
		296	# define EV_USE_INOTIFY 0
		297	# endif
273	#endif	298	#endif
274		299
275	#if EV_SELECT_IS_WINSOCKET	300	#if EV_SELECT_IS_WINSOCKET
276	# include <winsock.h>	301	# include <winsock.h>
277	#endif	302	#endif
…		…
287	}	312	}
288	# endif	313	# endif
289	#endif	314	#endif
290		315
291	/**/	316	/**/
		317
		318	#if EV_VERIFY >= 3
		319	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		320	#else
		321	# define EV_FREQUENT_CHECK do { } while (0)
		322	#endif
292		323
293	/*	324	/*
294	* This is used to avoid floating point rounding problems.	325	* This is used to avoid floating point rounding problems.
295	* It is added to ev_rt_now when scheduling periodics	326	* It is added to ev_rt_now when scheduling periodics
296	* to ensure progress, time-wise, even when rounding	327	* to ensure progress, time-wise, even when rounding
…		…
444	typedef struct {	475	typedef struct {
445	ev_tstamp at;	476	ev_tstamp at;
446	WT w;	477	WT w;
447	} ANHE;	478	} ANHE;
448		479
449	#define ANHE_w(he) (he).w /* access watcher, read-write */	480	#define ANHE_w(he) (he).w /* access watcher, read-write */
450	#define ANHE_at(he) (he).at /* access cached at, read-only */	481	#define ANHE_at(he) (he).at /* access cached at, read-only */
451	#define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */	482	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
452	#else	483	#else
453	typedef WT ANHE;	484	typedef WT ANHE;
454		485
455	#define ANHE_w(he) (he)	486	#define ANHE_w(he) (he)
456	#define ANHE_at(he) (he)->at	487	#define ANHE_at(he) (he)->at
457	#define ANHE_at_set(he)	488	#define ANHE_at_cache(he)
458	#endif	489	#endif
459		490
460	#if EV_MULTIPLICITY	491	#if EV_MULTIPLICITY
461		492
462	struct ev_loop	493	struct ev_loop
…		…
540	struct timeval tv;	571	struct timeval tv;
541		572
542	tv.tv_sec = (time_t)delay;	573	tv.tv_sec = (time_t)delay;
543	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	574	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
544		575
		576	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		577	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		578	/* by older ones */
545	select (0, 0, 0, 0, &tv);	579	select (0, 0, 0, 0, &tv);
546	#endif	580	#endif
547	}	581	}
548	}	582	}
549		583
…		…
683	events \|= (unsigned char)w->events;	717	events \|= (unsigned char)w->events;
684		718
685	#if EV_SELECT_IS_WINSOCKET	719	#if EV_SELECT_IS_WINSOCKET
686	if (events)	720	if (events)
687	{	721	{
688	unsigned long argp;	722	unsigned long arg;
689	#ifdef EV_FD_TO_WIN32_HANDLE	723	#ifdef EV_FD_TO_WIN32_HANDLE
690	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	724	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
691	#else	725	#else
692	anfd->handle = _get_osfhandle (fd);	726	anfd->handle = _get_osfhandle (fd);
693	#endif	727	#endif
694	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	728	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
695	}	729	}
696	#endif	730	#endif
697		731
698	{	732	{
699	unsigned char o_events = anfd->events;	733	unsigned char o_events = anfd->events;
…		…
752	{	786	{
753	int fd;	787	int fd;
754		788
755	for (fd = 0; fd < anfdmax; ++fd)	789	for (fd = 0; fd < anfdmax; ++fd)
756	if (anfds [fd].events)	790	if (anfds [fd].events)
757	if (!fd_valid (fd) == -1 && errno == EBADF)	791	if (!fd_valid (fd) && errno == EBADF)
758	fd_kill (EV_A_ fd);	792	fd_kill (EV_A_ fd);
759	}	793	}
760		794
761	/* called on ENOMEM in select/poll to kill some fds and retry */	795	/* called on ENOMEM in select/poll to kill some fds and retry */
762	static void noinline	796	static void noinline
…		…
802	*/	836	*/
803	#if EV_USE_4HEAP	837	#if EV_USE_4HEAP
804		838
805	#define DHEAP 4	839	#define DHEAP 4
806	#define HEAP0 (DHEAP - 1) /* index of first element in heap */	840	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
807		841	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
808	/* towards the root */	842	#define UPHEAP_DONE(p,k) ((p) == (k))
809	void inline_speed
810	upheap (ANHE *heap, int k)
811	{
812	ANHE he = heap [k];
813
814	for (;;)
815	{
816	int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0;
817
818	if (p == k \|\| ANHE_at (heap [p]) <= ANHE_at (he))
819	break;
820
821	heap [k] = heap [p];
822	ev_active (ANHE_w (heap [k])) = k;
823	k = p;
824	}
825
826	ev_active (ANHE_w (he)) = k;
827	heap [k] = he;
828	}
829		843
830	/* away from the root */	844	/* away from the root */
831	void inline_speed	845	void inline_speed
832	downheap (ANHE *heap, int N, int k)	846	downheap (ANHE *heap, int N, int k)
833	{	847	{
…		…
836		850
837	for (;;)	851	for (;;)
838	{	852	{
839	ev_tstamp minat;	853	ev_tstamp minat;
840	ANHE *minpos;	854	ANHE *minpos;
841	ANHE pos = heap + DHEAP (k - HEAP0) + HEAP0;	855	ANHE pos = heap + DHEAP (k - HEAP0) + HEAP0 + 1;
842		856
843	// find minimum child	857	/* find minimum child */
844	if (expect_true (pos + DHEAP - 1 < E))	858	if (expect_true (pos + DHEAP - 1 < E))
845	{	859	{
846	/* fast path / (minpos = pos + 0), (minat = ANHE_at (minpos));	860	/* fast path / (minpos = pos + 0), (minat = ANHE_at (minpos));
847	if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	861	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
848	if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	862	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
849	if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	863	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
850	}	864	}
851	else if (pos < E)	865	else if (pos < E)
852	{	866	{
853	/* slow path / (minpos = pos + 0), (minat = ANHE_at (minpos));	867	/* slow path / (minpos = pos + 0), (minat = ANHE_at (minpos));
854	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	868	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
…		…
859	break;	873	break;
860		874
861	if (ANHE_at (he) <= minat)	875	if (ANHE_at (he) <= minat)
862	break;	876	break;
863		877
		878	heap [k] = *minpos;
864	ev_active (ANHE_w (*minpos)) = k;	879	ev_active (ANHE_w (*minpos)) = k;
865	heap [k] = *minpos;
866		880
867	k = minpos - heap;	881	k = minpos - heap;
868	}	882	}
869		883
		884	heap [k] = he;
870	ev_active (ANHE_w (he)) = k;	885	ev_active (ANHE_w (he)) = k;
871	heap [k] = he;
872	}	886	}
873		887
874	#else // 4HEAP	888	#else /* 4HEAP */
875		889
876	#define HEAP0 1	890	#define HEAP0 1
877		891	#define HPARENT(k) ((k) >> 1)
878	/* towards the root */	892	#define UPHEAP_DONE(p,k) (!(p))
879	void inline_speed
880	upheap (ANHE *heap, int k)
881	{
882	ANHE he = heap [k];
883
884	for (;;)
885	{
886	int p = k >> 1;
887
888	/* maybe we could use a dummy element at heap [0]? */
889	if (!p \|\| ANHE_at (heap [p]) <= ANHE_at (he))
890	break;
891
892	heap [k] = heap [p];
893	ev_active (ANHE_w (heap [k])) = k;
894	k = p;
895	}
896
897	heap [k] = he;
898	ev_active (ANHE_w (heap [k])) = k;
899	}
900		893
901	/* away from the root */	894	/* away from the root */
902	void inline_speed	895	void inline_speed
903	downheap (ANHE *heap, int N, int k)	896	downheap (ANHE *heap, int N, int k)
904	{	897	{
…		…
906		899
907	for (;;)	900	for (;;)
908	{	901	{
909	int c = k << 1;	902	int c = k << 1;
910		903
911	if (c > N)	904	if (c > N + HEAP0 - 1)
912	break;	905	break;
913		906
914	c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	907	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
915	? 1 : 0;	908	? 1 : 0;
916		909
917	if (ANHE_at (he) <= ANHE_at (heap [c]))	910	if (ANHE_at (he) <= ANHE_at (heap [c]))
918	break;	911	break;
919		912
…		…
926	heap [k] = he;	919	heap [k] = he;
927	ev_active (ANHE_w (he)) = k;	920	ev_active (ANHE_w (he)) = k;
928	}	921	}
929	#endif	922	#endif
930		923
		924	/* towards the root */
		925	void inline_speed
		926	upheap (ANHE *heap, int k)
		927	{
		928	ANHE he = heap [k];
		929
		930	for (;;)
		931	{
		932	int p = HPARENT (k);
		933
		934	if (UPHEAP_DONE (p, k) \|\| ANHE_at (heap [p]) <= ANHE_at (he))
		935	break;
		936
		937	heap [k] = heap [p];
		938	ev_active (ANHE_w (heap [k])) = k;
		939	k = p;
		940	}
		941
		942	heap [k] = he;
		943	ev_active (ANHE_w (he)) = k;
		944	}
		945
931	void inline_size	946	void inline_size
932	adjustheap (ANHE *heap, int N, int k)	947	adjustheap (ANHE *heap, int N, int k)
933	{	948	{
		949	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
934	upheap (heap, k);	950	upheap (heap, k);
		951	else
935	downheap (heap, N, k);	952	downheap (heap, N, k);
		953	}
		954
		955	/* rebuild the heap: this function is used only once and executed rarely */
		956	void inline_size
		957	reheap (ANHE *heap, int N)
		958	{
		959	int i;
		960
		961	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		962	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		963	for (i = 0; i < N; ++i)
		964	upheap (heap, i + HEAP0);
936	}	965	}
937		966
938	/*****************************************************************************/	967	/*****************************************************************************/
939		968
940	typedef struct	969	typedef struct
…		…
964		993
965	void inline_speed	994	void inline_speed
966	fd_intern (int fd)	995	fd_intern (int fd)
967	{	996	{
968	#ifdef _WIN32	997	#ifdef _WIN32
969	int arg = 1;	998	unsigned long arg = 1;
970	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	999	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
971	#else	1000	#else
972	fcntl (fd, F_SETFD, FD_CLOEXEC);	1001	fcntl (fd, F_SETFD, FD_CLOEXEC);
973	fcntl (fd, F_SETFL, O_NONBLOCK);	1002	fcntl (fd, F_SETFL, O_NONBLOCK);
974	#endif	1003	#endif
…		…
1458		1487
1459	postfork = 0;	1488	postfork = 0;
1460	}	1489	}
1461		1490
1462	#if EV_MULTIPLICITY	1491	#if EV_MULTIPLICITY
		1492
1463	struct ev_loop *	1493	struct ev_loop *
1464	ev_loop_new (unsigned int flags)	1494	ev_loop_new (unsigned int flags)
1465	{	1495	{
1466	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1496	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
1467		1497
…		…
1485	void	1515	void
1486	ev_loop_fork (EV_P)	1516	ev_loop_fork (EV_P)
1487	{	1517	{
1488	postfork = 1; /* must be in line with ev_default_fork */	1518	postfork = 1; /* must be in line with ev_default_fork */
1489	}	1519	}
		1520
		1521	#if EV_VERIFY
		1522	static void noinline
		1523	verify_watcher (EV_P_ W w)
		1524	{
		1525	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1526
		1527	if (w->pending)
		1528	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1529	}
		1530
		1531	static void noinline
		1532	verify_heap (EV_P_ ANHE *heap, int N)
		1533	{
		1534	int i;
		1535
		1536	for (i = HEAP0; i < N + HEAP0; ++i)
		1537	{
		1538	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1539	assert (("heap condition violated", i == HEAP0 \|\| ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1540	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1541
		1542	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1543	}
		1544	}
		1545
		1546	static void noinline
		1547	array_verify (EV_P_ W *ws, int cnt)
		1548	{
		1549	while (cnt--)
		1550	{
		1551	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1552	verify_watcher (EV_A_ ws [cnt]);
		1553	}
		1554	}
		1555	#endif
		1556
		1557	void
		1558	ev_loop_verify (EV_P)
		1559	{
		1560	#if EV_VERIFY
		1561	int i;
		1562	WL w;
		1563
		1564	assert (activecnt >= -1);
		1565
		1566	assert (fdchangemax >= fdchangecnt);
		1567	for (i = 0; i < fdchangecnt; ++i)
		1568	assert (("negative fd in fdchanges", fdchanges [i] >= 0));
		1569
		1570	assert (anfdmax >= 0);
		1571	for (i = 0; i < anfdmax; ++i)
		1572	for (w = anfds [i].head; w; w = w->next)
		1573	{
		1574	verify_watcher (EV_A_ (W)w);
		1575	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
		1576	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1577	}
		1578
		1579	assert (timermax >= timercnt);
		1580	verify_heap (EV_A_ timers, timercnt);
		1581
		1582	#if EV_PERIODIC_ENABLE
		1583	assert (periodicmax >= periodiccnt);
		1584	verify_heap (EV_A_ periodics, periodiccnt);
		1585	#endif
		1586
		1587	for (i = NUMPRI; i--; )
		1588	{
		1589	assert (pendingmax [i] >= pendingcnt [i]);
		1590	#if EV_IDLE_ENABLE
		1591	assert (idleall >= 0);
		1592	assert (idlemax [i] >= idlecnt [i]);
		1593	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1594	#endif
		1595	}
		1596
		1597	#if EV_FORK_ENABLE
		1598	assert (forkmax >= forkcnt);
		1599	array_verify (EV_A_ (W *)forks, forkcnt);
		1600	#endif
		1601
		1602	#if EV_ASYNC_ENABLE
		1603	assert (asyncmax >= asynccnt);
		1604	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1605	#endif
		1606
		1607	assert (preparemax >= preparecnt);
		1608	array_verify (EV_A_ (W *)prepares, preparecnt);
		1609
		1610	assert (checkmax >= checkcnt);
		1611	array_verify (EV_A_ (W *)checks, checkcnt);
		1612
		1613	# if 0
		1614	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1615	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1490	#endif	1616	# endif
		1617	#endif
		1618	}
		1619
		1620	#endif /* multiplicity */
1491		1621
1492	#if EV_MULTIPLICITY	1622	#if EV_MULTIPLICITY
1493	struct ev_loop *	1623	struct ev_loop *
1494	ev_default_loop_init (unsigned int flags)	1624	ev_default_loop_init (unsigned int flags)
1495	#else	1625	#else
…		…
1571	{	1701	{
1572	/assert (("non-pending watcher on pending list", p->w->pending));/	1702	/assert (("non-pending watcher on pending list", p->w->pending));/
1573		1703
1574	p->w->pending = 0;	1704	p->w->pending = 0;
1575	EV_CB_INVOKE (p->w, p->events);	1705	EV_CB_INVOKE (p->w, p->events);
		1706	EV_FREQUENT_CHECK;
1576	}	1707	}
1577	}	1708	}
1578	}	1709	}
1579		1710
1580	#if EV_IDLE_ENABLE	1711	#if EV_IDLE_ENABLE
…		…
1601	#endif	1732	#endif
1602		1733
1603	void inline_size	1734	void inline_size
1604	timers_reify (EV_P)	1735	timers_reify (EV_P)
1605	{	1736	{
		1737	EV_FREQUENT_CHECK;
		1738
1606	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)	1739	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1607	{	1740	{
1608	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);	1741	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);
1609		1742
1610	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1743	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
…		…
1616	if (ev_at (w) < mn_now)	1749	if (ev_at (w) < mn_now)
1617	ev_at (w) = mn_now;	1750	ev_at (w) = mn_now;
1618		1751
1619	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1752	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1620		1753
1621	ANHE_at_set (timers [HEAP0]);	1754	ANHE_at_cache (timers [HEAP0]);
1622	downheap (timers, timercnt, HEAP0);	1755	downheap (timers, timercnt, HEAP0);
1623	}	1756	}
1624	else	1757	else
1625	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1758	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1626		1759
		1760	EV_FREQUENT_CHECK;
1627	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1761	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1628	}	1762	}
1629	}	1763	}
1630		1764
1631	#if EV_PERIODIC_ENABLE	1765	#if EV_PERIODIC_ENABLE
1632	void inline_size	1766	void inline_size
1633	periodics_reify (EV_P)	1767	periodics_reify (EV_P)
1634	{	1768	{
		1769	EV_FREQUENT_CHECK;
		1770
1635	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	1771	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1636	{	1772	{
1637	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);	1773	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);
1638		1774
1639	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1775	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
…		…
1643	{	1779	{
1644	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1780	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1645		1781
1646	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));	1782	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1647		1783
1648	ANHE_at_set (periodics [HEAP0]);	1784	ANHE_at_cache (periodics [HEAP0]);
1649	downheap (periodics, periodiccnt, HEAP0);	1785	downheap (periodics, periodiccnt, HEAP0);
1650	}	1786	}
1651	else if (w->interval)	1787	else if (w->interval)
1652	{	1788	{
1653	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1789	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1790	/* if next trigger time is not sufficiently in the future, put it there */
		1791	/* this might happen because of floating point inexactness */
1654	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;	1792	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1793	{
		1794	ev_at (w) += w->interval;
1655		1795
1656	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) >= ev_rt_now));	1796	/* if interval is unreasonably low we might still have a time in the past */
		1797	/* so correct this. this will make the periodic very inexact, but the user */
		1798	/* has effectively asked to get triggered more often than possible */
		1799	if (ev_at (w) < ev_rt_now)
		1800	ev_at (w) = ev_rt_now;
		1801	}
1657		1802
1658	ANHE_at_set (periodics [HEAP0]);	1803	ANHE_at_cache (periodics [HEAP0]);
1659	downheap (periodics, periodiccnt, HEAP0);	1804	downheap (periodics, periodiccnt, HEAP0);
1660	}	1805	}
1661	else	1806	else
1662	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1807	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1663		1808
		1809	EV_FREQUENT_CHECK;
1664	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1810	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1665	}	1811	}
1666	}	1812	}
1667		1813
1668	static void noinline	1814	static void noinline
…		…
1678	if (w->reschedule_cb)	1824	if (w->reschedule_cb)
1679	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	1825	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1680	else if (w->interval)	1826	else if (w->interval)
1681	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	1827	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1682		1828
1683	ANHE_at_set (periodics [i]);	1829	ANHE_at_cache (periodics [i]);
1684	}	1830	}
1685		1831
1686	/* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */	1832	reheap (periodics, periodiccnt);
1687	/* also, this is easy and corretc for both 2-heaps and 4-heaps */
1688	for (i = 0; i < periodiccnt; ++i)
1689	upheap (periodics, i + HEAP0);
1690	}	1833	}
1691	#endif	1834	#endif
1692		1835
1693	void inline_speed	1836	void inline_speed
1694	time_update (EV_P_ ev_tstamp max_block)	1837	time_update (EV_P_ ev_tstamp max_block)
…		…
1752	/* adjust timers. this is easy, as the offset is the same for all of them */	1895	/* adjust timers. this is easy, as the offset is the same for all of them */
1753	for (i = 0; i < timercnt; ++i)	1896	for (i = 0; i < timercnt; ++i)
1754	{	1897	{
1755	ANHE *he = timers + i + HEAP0;	1898	ANHE *he = timers + i + HEAP0;
1756	ANHE_w (*he)->at += ev_rt_now - mn_now;	1899	ANHE_w (*he)->at += ev_rt_now - mn_now;
1757	ANHE_at_set (*he);	1900	ANHE_at_cache (*he);
1758	}	1901	}
1759	}	1902	}
1760		1903
1761	mn_now = ev_rt_now;	1904	mn_now = ev_rt_now;
1762	}	1905	}
…		…
1772	ev_unref (EV_P)	1915	ev_unref (EV_P)
1773	{	1916	{
1774	--activecnt;	1917	--activecnt;
1775	}	1918	}
1776		1919
		1920	void
		1921	ev_now_update (EV_P)
		1922	{
		1923	time_update (EV_A_ 1e100);
		1924	}
		1925
1777	static int loop_done;	1926	static int loop_done;
1778		1927
1779	void	1928	void
1780	ev_loop (EV_P_ int flags)	1929	ev_loop (EV_P_ int flags)
1781	{	1930	{
…		…
1783		1932
1784	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1933	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1785		1934
1786	do	1935	do
1787	{	1936	{
		1937	#if EV_VERIFY >= 2
		1938	ev_loop_verify (EV_A);
		1939	#endif
		1940
1788	#ifndef _WIN32	1941	#ifndef _WIN32
1789	if (expect_false (curpid)) /* penalise the forking check even more */	1942	if (expect_false (curpid)) /* penalise the forking check even more */
1790	if (expect_false (getpid () != curpid))	1943	if (expect_false (getpid () != curpid))
1791	{	1944	{
1792	curpid = getpid ();	1945	curpid = getpid ();
…		…
1987	if (expect_false (ev_is_active (w)))	2140	if (expect_false (ev_is_active (w)))
1988	return;	2141	return;
1989		2142
1990	assert (("ev_io_start called with negative fd", fd >= 0));	2143	assert (("ev_io_start called with negative fd", fd >= 0));
1991		2144
		2145	EV_FREQUENT_CHECK;
		2146
1992	ev_start (EV_A_ (W)w, 1);	2147	ev_start (EV_A_ (W)w, 1);
1993	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2148	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1994	wlist_add (&anfds[fd].head, (WL)w);	2149	wlist_add (&anfds[fd].head, (WL)w);
1995		2150
1996	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);	2151	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
1997	w->events &= ~EV_IOFDSET;	2152	w->events &= ~EV_IOFDSET;
		2153
		2154	EV_FREQUENT_CHECK;
1998	}	2155	}
1999		2156
2000	void noinline	2157	void noinline
2001	ev_io_stop (EV_P_ ev_io *w)	2158	ev_io_stop (EV_P_ ev_io *w)
2002	{	2159	{
…		…
2004	if (expect_false (!ev_is_active (w)))	2161	if (expect_false (!ev_is_active (w)))
2005	return;	2162	return;
2006		2163
2007	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2164	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2008		2165
		2166	EV_FREQUENT_CHECK;
		2167
2009	wlist_del (&anfds[w->fd].head, (WL)w);	2168	wlist_del (&anfds[w->fd].head, (WL)w);
2010	ev_stop (EV_A_ (W)w);	2169	ev_stop (EV_A_ (W)w);
2011		2170
2012	fd_change (EV_A_ w->fd, 1);	2171	fd_change (EV_A_ w->fd, 1);
		2172
		2173	EV_FREQUENT_CHECK;
2013	}	2174	}
2014		2175
2015	void noinline	2176	void noinline
2016	ev_timer_start (EV_P_ ev_timer *w)	2177	ev_timer_start (EV_P_ ev_timer *w)
2017	{	2178	{
…		…
2020		2181
2021	ev_at (w) += mn_now;	2182	ev_at (w) += mn_now;
2022		2183
2023	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2184	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2024		2185
		2186	EV_FREQUENT_CHECK;
		2187
		2188	++timercnt;
2025	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);	2189	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2026	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	2190	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2027	ANHE_w (timers [ev_active (w)]) = (WT)w;	2191	ANHE_w (timers [ev_active (w)]) = (WT)w;
2028	ANHE_at_set (timers [ev_active (w)]);	2192	ANHE_at_cache (timers [ev_active (w)]);
2029	upheap (timers, ev_active (w));	2193	upheap (timers, ev_active (w));
		2194
		2195	EV_FREQUENT_CHECK;
2030		2196
2031	/assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));/	2197	/assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));/
2032	}	2198	}
2033		2199
2034	void noinline	2200	void noinline
…		…
2036	{	2202	{
2037	clear_pending (EV_A_ (W)w);	2203	clear_pending (EV_A_ (W)w);
2038	if (expect_false (!ev_is_active (w)))	2204	if (expect_false (!ev_is_active (w)))
2039	return;	2205	return;
2040		2206
		2207	EV_FREQUENT_CHECK;
		2208
2041	{	2209	{
2042	int active = ev_active (w);	2210	int active = ev_active (w);
2043		2211
2044	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	2212	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2045		2213
		2214	--timercnt;
		2215
2046	if (expect_true (active < timercnt + HEAP0 - 1))	2216	if (expect_true (active < timercnt + HEAP0))
2047	{	2217	{
2048	timers [active] = timers [timercnt + HEAP0 - 1];	2218	timers [active] = timers [timercnt + HEAP0];
2049	adjustheap (timers, timercnt, active);	2219	adjustheap (timers, timercnt, active);
2050	}	2220	}
2051
2052	--timercnt;
2053	}	2221	}
		2222
		2223	EV_FREQUENT_CHECK;
2054		2224
2055	ev_at (w) -= mn_now;	2225	ev_at (w) -= mn_now;
2056		2226
2057	ev_stop (EV_A_ (W)w);	2227	ev_stop (EV_A_ (W)w);
2058	}	2228	}
2059		2229
2060	void noinline	2230	void noinline
2061	ev_timer_again (EV_P_ ev_timer *w)	2231	ev_timer_again (EV_P_ ev_timer *w)
2062	{	2232	{
		2233	EV_FREQUENT_CHECK;
		2234
2063	if (ev_is_active (w))	2235	if (ev_is_active (w))
2064	{	2236	{
2065	if (w->repeat)	2237	if (w->repeat)
2066	{	2238	{
2067	ev_at (w) = mn_now + w->repeat;	2239	ev_at (w) = mn_now + w->repeat;
2068	ANHE_at_set (timers [ev_active (w)]);	2240	ANHE_at_cache (timers [ev_active (w)]);
2069	adjustheap (timers, timercnt, ev_active (w));	2241	adjustheap (timers, timercnt, ev_active (w));
2070	}	2242	}
2071	else	2243	else
2072	ev_timer_stop (EV_A_ w);	2244	ev_timer_stop (EV_A_ w);
2073	}	2245	}
2074	else if (w->repeat)	2246	else if (w->repeat)
2075	{	2247	{
2076	ev_at (w) = w->repeat;	2248	ev_at (w) = w->repeat;
2077	ev_timer_start (EV_A_ w);	2249	ev_timer_start (EV_A_ w);
2078	}	2250	}
		2251
		2252	EV_FREQUENT_CHECK;
2079	}	2253	}
2080		2254
2081	#if EV_PERIODIC_ENABLE	2255	#if EV_PERIODIC_ENABLE
2082	void noinline	2256	void noinline
2083	ev_periodic_start (EV_P_ ev_periodic *w)	2257	ev_periodic_start (EV_P_ ev_periodic *w)
…		…
2094	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2268	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2095	}	2269	}
2096	else	2270	else
2097	ev_at (w) = w->offset;	2271	ev_at (w) = w->offset;
2098		2272
		2273	EV_FREQUENT_CHECK;
		2274
		2275	++periodiccnt;
2099	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);	2276	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2100	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	2277	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2101	ANHE_w (periodics [ev_active (w)]) = (WT)w;	2278	ANHE_w (periodics [ev_active (w)]) = (WT)w;
2102	ANHE_at_set (periodics [ev_active (w)]);	2279	ANHE_at_cache (periodics [ev_active (w)]);
2103	upheap (periodics, ev_active (w));	2280	upheap (periodics, ev_active (w));
		2281
		2282	EV_FREQUENT_CHECK;
2104		2283
2105	/assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/	2284	/assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/
2106	}	2285	}
2107		2286
2108	void noinline	2287	void noinline
…		…
2110	{	2289	{
2111	clear_pending (EV_A_ (W)w);	2290	clear_pending (EV_A_ (W)w);
2112	if (expect_false (!ev_is_active (w)))	2291	if (expect_false (!ev_is_active (w)))
2113	return;	2292	return;
2114		2293
		2294	EV_FREQUENT_CHECK;
		2295
2115	{	2296	{
2116	int active = ev_active (w);	2297	int active = ev_active (w);
2117		2298
2118	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	2299	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2119		2300
		2301	--periodiccnt;
		2302
2120	if (expect_true (active < periodiccnt + HEAP0 - 1))	2303	if (expect_true (active < periodiccnt + HEAP0))
2121	{	2304	{
2122	periodics [active] = periodics [periodiccnt + HEAP0 - 1];	2305	periodics [active] = periodics [periodiccnt + HEAP0];
2123	adjustheap (periodics, periodiccnt, active);	2306	adjustheap (periodics, periodiccnt, active);
2124	}	2307	}
2125
2126	--periodiccnt;
2127	}	2308	}
		2309
		2310	EV_FREQUENT_CHECK;
2128		2311
2129	ev_stop (EV_A_ (W)w);	2312	ev_stop (EV_A_ (W)w);
2130	}	2313	}
2131		2314
2132	void noinline	2315	void noinline
…		…
2152	return;	2335	return;
2153		2336
2154	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2337	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
2155		2338
2156	evpipe_init (EV_A);	2339	evpipe_init (EV_A);
		2340
		2341	EV_FREQUENT_CHECK;
2157		2342
2158	{	2343	{
2159	#ifndef _WIN32	2344	#ifndef _WIN32
2160	sigset_t full, prev;	2345	sigset_t full, prev;
2161	sigfillset (&full);	2346	sigfillset (&full);
…		…
2182	sigfillset (&sa.sa_mask);	2367	sigfillset (&sa.sa_mask);
2183	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2368	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2184	sigaction (w->signum, &sa, 0);	2369	sigaction (w->signum, &sa, 0);
2185	#endif	2370	#endif
2186	}	2371	}
		2372
		2373	EV_FREQUENT_CHECK;
2187	}	2374	}
2188		2375
2189	void noinline	2376	void noinline
2190	ev_signal_stop (EV_P_ ev_signal *w)	2377	ev_signal_stop (EV_P_ ev_signal *w)
2191	{	2378	{
2192	clear_pending (EV_A_ (W)w);	2379	clear_pending (EV_A_ (W)w);
2193	if (expect_false (!ev_is_active (w)))	2380	if (expect_false (!ev_is_active (w)))
2194	return;	2381	return;
2195		2382
		2383	EV_FREQUENT_CHECK;
		2384
2196	wlist_del (&signals [w->signum - 1].head, (WL)w);	2385	wlist_del (&signals [w->signum - 1].head, (WL)w);
2197	ev_stop (EV_A_ (W)w);	2386	ev_stop (EV_A_ (W)w);
2198		2387
2199	if (!signals [w->signum - 1].head)	2388	if (!signals [w->signum - 1].head)
2200	signal (w->signum, SIG_DFL);	2389	signal (w->signum, SIG_DFL);
		2390
		2391	EV_FREQUENT_CHECK;
2201	}	2392	}
2202		2393
2203	void	2394	void
2204	ev_child_start (EV_P_ ev_child *w)	2395	ev_child_start (EV_P_ ev_child *w)
2205	{	2396	{
…		…
2207	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2398	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2208	#endif	2399	#endif
2209	if (expect_false (ev_is_active (w)))	2400	if (expect_false (ev_is_active (w)))
2210	return;	2401	return;
2211		2402
		2403	EV_FREQUENT_CHECK;
		2404
2212	ev_start (EV_A_ (W)w, 1);	2405	ev_start (EV_A_ (W)w, 1);
2213	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2406	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2407
		2408	EV_FREQUENT_CHECK;
2214	}	2409	}
2215		2410
2216	void	2411	void
2217	ev_child_stop (EV_P_ ev_child *w)	2412	ev_child_stop (EV_P_ ev_child *w)
2218	{	2413	{
2219	clear_pending (EV_A_ (W)w);	2414	clear_pending (EV_A_ (W)w);
2220	if (expect_false (!ev_is_active (w)))	2415	if (expect_false (!ev_is_active (w)))
2221	return;	2416	return;
2222		2417
		2418	EV_FREQUENT_CHECK;
		2419
2223	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2420	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2224	ev_stop (EV_A_ (W)w);	2421	ev_stop (EV_A_ (W)w);
		2422
		2423	EV_FREQUENT_CHECK;
2225	}	2424	}
2226		2425
2227	#if EV_STAT_ENABLE	2426	#if EV_STAT_ENABLE
2228		2427
2229	# ifdef _WIN32	2428	# ifdef _WIN32
…		…
2298		2497
2299	static void noinline	2498	static void noinline
2300	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2499	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2301	{	2500	{
2302	if (slot < 0)	2501	if (slot < 0)
2303	/* overflow, need to check for all hahs slots */	2502	/* overflow, need to check for all hash slots */
2304	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2503	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2305	infy_wd (EV_A_ slot, wd, ev);	2504	infy_wd (EV_A_ slot, wd, ev);
2306	else	2505	else
2307	{	2506	{
2308	WL w_;	2507	WL w_;
…		…
2342	infy_init (EV_P)	2541	infy_init (EV_P)
2343	{	2542	{
2344	if (fs_fd != -2)	2543	if (fs_fd != -2)
2345	return;	2544	return;
2346		2545
		2546	/* kernels < 2.6.25 are borked
		2547	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2548	*/
		2549	{
		2550	struct utsname buf;
		2551	int major, minor, micro;
		2552
		2553	fs_fd = -1;
		2554
		2555	if (uname (&buf))
		2556	return;
		2557
		2558	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2559	return;
		2560
		2561	if (major < 2
		2562	\|\| (major == 2 && minor < 6)
		2563	\|\| (major == 2 && minor == 6 && micro < 25))
		2564	return;
		2565	}
		2566
2347	fs_fd = inotify_init ();	2567	fs_fd = inotify_init ();
2348		2568
2349	if (fs_fd >= 0)	2569	if (fs_fd >= 0)
2350	{	2570	{
2351	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	2571	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
…		…
2380	if (fs_fd >= 0)	2600	if (fs_fd >= 0)
2381	infy_add (EV_A_ w); /* re-add, no matter what */	2601	infy_add (EV_A_ w); /* re-add, no matter what */
2382	else	2602	else
2383	ev_timer_start (EV_A_ &w->timer);	2603	ev_timer_start (EV_A_ &w->timer);
2384	}	2604	}
2385
2386	}	2605	}
2387	}	2606	}
2388		2607
		2608	#endif
		2609
		2610	#ifdef _WIN32
		2611	# define EV_LSTAT(p,b) _stati64 (p, b)
		2612	#else
		2613	# define EV_LSTAT(p,b) lstat (p, b)
2389	#endif	2614	#endif
2390		2615
2391	void	2616	void
2392	ev_stat_stat (EV_P_ ev_stat *w)	2617	ev_stat_stat (EV_P_ ev_stat *w)
2393	{	2618	{
…		…
2420	\|\| w->prev.st_atime != w->attr.st_atime	2645	\|\| w->prev.st_atime != w->attr.st_atime
2421	\|\| w->prev.st_mtime != w->attr.st_mtime	2646	\|\| w->prev.st_mtime != w->attr.st_mtime
2422	\|\| w->prev.st_ctime != w->attr.st_ctime	2647	\|\| w->prev.st_ctime != w->attr.st_ctime
2423	) {	2648	) {
2424	#if EV_USE_INOTIFY	2649	#if EV_USE_INOTIFY
		2650	if (fs_fd >= 0)
		2651	{
2425	infy_del (EV_A_ w);	2652	infy_del (EV_A_ w);
2426	infy_add (EV_A_ w);	2653	infy_add (EV_A_ w);
2427	ev_stat_stat (EV_A_ w); /* avoid race... */	2654	ev_stat_stat (EV_A_ w); /* avoid race... */
		2655	}
2428	#endif	2656	#endif
2429		2657
2430	ev_feed_event (EV_A_ w, EV_STAT);	2658	ev_feed_event (EV_A_ w, EV_STAT);
2431	}	2659	}
2432	}	2660	}
…		…
2457	else	2685	else
2458	#endif	2686	#endif
2459	ev_timer_start (EV_A_ &w->timer);	2687	ev_timer_start (EV_A_ &w->timer);
2460		2688
2461	ev_start (EV_A_ (W)w, 1);	2689	ev_start (EV_A_ (W)w, 1);
		2690
		2691	EV_FREQUENT_CHECK;
2462	}	2692	}
2463		2693
2464	void	2694	void
2465	ev_stat_stop (EV_P_ ev_stat *w)	2695	ev_stat_stop (EV_P_ ev_stat *w)
2466	{	2696	{
2467	clear_pending (EV_A_ (W)w);	2697	clear_pending (EV_A_ (W)w);
2468	if (expect_false (!ev_is_active (w)))	2698	if (expect_false (!ev_is_active (w)))
2469	return;	2699	return;
2470		2700
		2701	EV_FREQUENT_CHECK;
		2702
2471	#if EV_USE_INOTIFY	2703	#if EV_USE_INOTIFY
2472	infy_del (EV_A_ w);	2704	infy_del (EV_A_ w);
2473	#endif	2705	#endif
2474	ev_timer_stop (EV_A_ &w->timer);	2706	ev_timer_stop (EV_A_ &w->timer);
2475		2707
2476	ev_stop (EV_A_ (W)w);	2708	ev_stop (EV_A_ (W)w);
		2709
		2710	EV_FREQUENT_CHECK;
2477	}	2711	}
2478	#endif	2712	#endif
2479		2713
2480	#if EV_IDLE_ENABLE	2714	#if EV_IDLE_ENABLE
2481	void	2715	void
…		…
2483	{	2717	{
2484	if (expect_false (ev_is_active (w)))	2718	if (expect_false (ev_is_active (w)))
2485	return;	2719	return;
2486		2720
2487	pri_adjust (EV_A_ (W)w);	2721	pri_adjust (EV_A_ (W)w);
		2722
		2723	EV_FREQUENT_CHECK;
2488		2724
2489	{	2725	{
2490	int active = ++idlecnt [ABSPRI (w)];	2726	int active = ++idlecnt [ABSPRI (w)];
2491		2727
2492	++idleall;	2728	++idleall;
2493	ev_start (EV_A_ (W)w, active);	2729	ev_start (EV_A_ (W)w, active);
2494		2730
2495	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2731	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2496	idles [ABSPRI (w)][active - 1] = w;	2732	idles [ABSPRI (w)][active - 1] = w;
2497	}	2733	}
		2734
		2735	EV_FREQUENT_CHECK;
2498	}	2736	}
2499		2737
2500	void	2738	void
2501	ev_idle_stop (EV_P_ ev_idle *w)	2739	ev_idle_stop (EV_P_ ev_idle *w)
2502	{	2740	{
2503	clear_pending (EV_A_ (W)w);	2741	clear_pending (EV_A_ (W)w);
2504	if (expect_false (!ev_is_active (w)))	2742	if (expect_false (!ev_is_active (w)))
2505	return;	2743	return;
2506		2744
		2745	EV_FREQUENT_CHECK;
		2746
2507	{	2747	{
2508	int active = ev_active (w);	2748	int active = ev_active (w);
2509		2749
2510	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2750	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2511	ev_active (idles [ABSPRI (w)][active - 1]) = active;	2751	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2512		2752
2513	ev_stop (EV_A_ (W)w);	2753	ev_stop (EV_A_ (W)w);
2514	--idleall;	2754	--idleall;
2515	}	2755	}
		2756
		2757	EV_FREQUENT_CHECK;
2516	}	2758	}
2517	#endif	2759	#endif
2518		2760
2519	void	2761	void
2520	ev_prepare_start (EV_P_ ev_prepare *w)	2762	ev_prepare_start (EV_P_ ev_prepare *w)
2521	{	2763	{
2522	if (expect_false (ev_is_active (w)))	2764	if (expect_false (ev_is_active (w)))
2523	return;	2765	return;
		2766
		2767	EV_FREQUENT_CHECK;
2524		2768
2525	ev_start (EV_A_ (W)w, ++preparecnt);	2769	ev_start (EV_A_ (W)w, ++preparecnt);
2526	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2770	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2527	prepares [preparecnt - 1] = w;	2771	prepares [preparecnt - 1] = w;
		2772
		2773	EV_FREQUENT_CHECK;
2528	}	2774	}
2529		2775
2530	void	2776	void
2531	ev_prepare_stop (EV_P_ ev_prepare *w)	2777	ev_prepare_stop (EV_P_ ev_prepare *w)
2532	{	2778	{
2533	clear_pending (EV_A_ (W)w);	2779	clear_pending (EV_A_ (W)w);
2534	if (expect_false (!ev_is_active (w)))	2780	if (expect_false (!ev_is_active (w)))
2535	return;	2781	return;
2536		2782
		2783	EV_FREQUENT_CHECK;
		2784
2537	{	2785	{
2538	int active = ev_active (w);	2786	int active = ev_active (w);
2539		2787
2540	prepares [active - 1] = prepares [--preparecnt];	2788	prepares [active - 1] = prepares [--preparecnt];
2541	ev_active (prepares [active - 1]) = active;	2789	ev_active (prepares [active - 1]) = active;
2542	}	2790	}
2543		2791
2544	ev_stop (EV_A_ (W)w);	2792	ev_stop (EV_A_ (W)w);
		2793
		2794	EV_FREQUENT_CHECK;
2545	}	2795	}
2546		2796
2547	void	2797	void
2548	ev_check_start (EV_P_ ev_check *w)	2798	ev_check_start (EV_P_ ev_check *w)
2549	{	2799	{
2550	if (expect_false (ev_is_active (w)))	2800	if (expect_false (ev_is_active (w)))
2551	return;	2801	return;
		2802
		2803	EV_FREQUENT_CHECK;
2552		2804
2553	ev_start (EV_A_ (W)w, ++checkcnt);	2805	ev_start (EV_A_ (W)w, ++checkcnt);
2554	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2806	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2555	checks [checkcnt - 1] = w;	2807	checks [checkcnt - 1] = w;
		2808
		2809	EV_FREQUENT_CHECK;
2556	}	2810	}
2557		2811
2558	void	2812	void
2559	ev_check_stop (EV_P_ ev_check *w)	2813	ev_check_stop (EV_P_ ev_check *w)
2560	{	2814	{
2561	clear_pending (EV_A_ (W)w);	2815	clear_pending (EV_A_ (W)w);
2562	if (expect_false (!ev_is_active (w)))	2816	if (expect_false (!ev_is_active (w)))
2563	return;	2817	return;
2564		2818
		2819	EV_FREQUENT_CHECK;
		2820
2565	{	2821	{
2566	int active = ev_active (w);	2822	int active = ev_active (w);
2567		2823
2568	checks [active - 1] = checks [--checkcnt];	2824	checks [active - 1] = checks [--checkcnt];
2569	ev_active (checks [active - 1]) = active;	2825	ev_active (checks [active - 1]) = active;
2570	}	2826	}
2571		2827
2572	ev_stop (EV_A_ (W)w);	2828	ev_stop (EV_A_ (W)w);
		2829
		2830	EV_FREQUENT_CHECK;
2573	}	2831	}
2574		2832
2575	#if EV_EMBED_ENABLE	2833	#if EV_EMBED_ENABLE
2576	void noinline	2834	void noinline
2577	ev_embed_sweep (EV_P_ ev_embed *w)	2835	ev_embed_sweep (EV_P_ ev_embed *w)
…		…
2604	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2862	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2605	}	2863	}
2606	}	2864	}
2607	}	2865	}
2608		2866
		2867	static void
		2868	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2869	{
		2870	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
		2871
		2872	{
		2873	struct ev_loop *loop = w->other;
		2874
		2875	ev_loop_fork (EV_A);
		2876	}
		2877	}
		2878
2609	#if 0	2879	#if 0
2610	static void	2880	static void
2611	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2881	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2612	{	2882	{
2613	ev_idle_stop (EV_A_ idle);	2883	ev_idle_stop (EV_A_ idle);
…		…
2624	struct ev_loop *loop = w->other;	2894	struct ev_loop *loop = w->other;
2625	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2895	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2626	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	2896	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2627	}	2897	}
2628		2898
		2899	EV_FREQUENT_CHECK;
		2900
2629	ev_set_priority (&w->io, ev_priority (w));	2901	ev_set_priority (&w->io, ev_priority (w));
2630	ev_io_start (EV_A_ &w->io);	2902	ev_io_start (EV_A_ &w->io);
2631		2903
2632	ev_prepare_init (&w->prepare, embed_prepare_cb);	2904	ev_prepare_init (&w->prepare, embed_prepare_cb);
2633	ev_set_priority (&w->prepare, EV_MINPRI);	2905	ev_set_priority (&w->prepare, EV_MINPRI);
2634	ev_prepare_start (EV_A_ &w->prepare);	2906	ev_prepare_start (EV_A_ &w->prepare);
2635		2907
		2908	ev_fork_init (&w->fork, embed_fork_cb);
		2909	ev_fork_start (EV_A_ &w->fork);
		2910
2636	/ev_idle_init (&w->idle, e,bed_idle_cb);/	2911	/ev_idle_init (&w->idle, e,bed_idle_cb);/
2637		2912
2638	ev_start (EV_A_ (W)w, 1);	2913	ev_start (EV_A_ (W)w, 1);
		2914
		2915	EV_FREQUENT_CHECK;
2639	}	2916	}
2640		2917
2641	void	2918	void
2642	ev_embed_stop (EV_P_ ev_embed *w)	2919	ev_embed_stop (EV_P_ ev_embed *w)
2643	{	2920	{
2644	clear_pending (EV_A_ (W)w);	2921	clear_pending (EV_A_ (W)w);
2645	if (expect_false (!ev_is_active (w)))	2922	if (expect_false (!ev_is_active (w)))
2646	return;	2923	return;
2647		2924
		2925	EV_FREQUENT_CHECK;
		2926
2648	ev_io_stop (EV_A_ &w->io);	2927	ev_io_stop (EV_A_ &w->io);
2649	ev_prepare_stop (EV_A_ &w->prepare);	2928	ev_prepare_stop (EV_A_ &w->prepare);
		2929	ev_fork_stop (EV_A_ &w->fork);
2650		2930
2651	ev_stop (EV_A_ (W)w);	2931	EV_FREQUENT_CHECK;
2652	}	2932	}
2653	#endif	2933	#endif
2654		2934
2655	#if EV_FORK_ENABLE	2935	#if EV_FORK_ENABLE
2656	void	2936	void
2657	ev_fork_start (EV_P_ ev_fork *w)	2937	ev_fork_start (EV_P_ ev_fork *w)
2658	{	2938	{
2659	if (expect_false (ev_is_active (w)))	2939	if (expect_false (ev_is_active (w)))
2660	return;	2940	return;
		2941
		2942	EV_FREQUENT_CHECK;
2661		2943
2662	ev_start (EV_A_ (W)w, ++forkcnt);	2944	ev_start (EV_A_ (W)w, ++forkcnt);
2663	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2945	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2664	forks [forkcnt - 1] = w;	2946	forks [forkcnt - 1] = w;
		2947
		2948	EV_FREQUENT_CHECK;
2665	}	2949	}
2666		2950
2667	void	2951	void
2668	ev_fork_stop (EV_P_ ev_fork *w)	2952	ev_fork_stop (EV_P_ ev_fork *w)
2669	{	2953	{
2670	clear_pending (EV_A_ (W)w);	2954	clear_pending (EV_A_ (W)w);
2671	if (expect_false (!ev_is_active (w)))	2955	if (expect_false (!ev_is_active (w)))
2672	return;	2956	return;
2673		2957
		2958	EV_FREQUENT_CHECK;
		2959
2674	{	2960	{
2675	int active = ev_active (w);	2961	int active = ev_active (w);
2676		2962
2677	forks [active - 1] = forks [--forkcnt];	2963	forks [active - 1] = forks [--forkcnt];
2678	ev_active (forks [active - 1]) = active;	2964	ev_active (forks [active - 1]) = active;
2679	}	2965	}
2680		2966
2681	ev_stop (EV_A_ (W)w);	2967	ev_stop (EV_A_ (W)w);
		2968
		2969	EV_FREQUENT_CHECK;
2682	}	2970	}
2683	#endif	2971	#endif
2684		2972
2685	#if EV_ASYNC_ENABLE	2973	#if EV_ASYNC_ENABLE
2686	void	2974	void
…		…
2688	{	2976	{
2689	if (expect_false (ev_is_active (w)))	2977	if (expect_false (ev_is_active (w)))
2690	return;	2978	return;
2691		2979
2692	evpipe_init (EV_A);	2980	evpipe_init (EV_A);
		2981
		2982	EV_FREQUENT_CHECK;
2693		2983
2694	ev_start (EV_A_ (W)w, ++asynccnt);	2984	ev_start (EV_A_ (W)w, ++asynccnt);
2695	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	2985	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2696	asyncs [asynccnt - 1] = w;	2986	asyncs [asynccnt - 1] = w;
		2987
		2988	EV_FREQUENT_CHECK;
2697	}	2989	}
2698		2990
2699	void	2991	void
2700	ev_async_stop (EV_P_ ev_async *w)	2992	ev_async_stop (EV_P_ ev_async *w)
2701	{	2993	{
2702	clear_pending (EV_A_ (W)w);	2994	clear_pending (EV_A_ (W)w);
2703	if (expect_false (!ev_is_active (w)))	2995	if (expect_false (!ev_is_active (w)))
2704	return;	2996	return;
2705		2997
		2998	EV_FREQUENT_CHECK;
		2999
2706	{	3000	{
2707	int active = ev_active (w);	3001	int active = ev_active (w);
2708		3002
2709	asyncs [active - 1] = asyncs [--asynccnt];	3003	asyncs [active - 1] = asyncs [--asynccnt];
2710	ev_active (asyncs [active - 1]) = active;	3004	ev_active (asyncs [active - 1]) = active;
2711	}	3005	}
2712		3006
2713	ev_stop (EV_A_ (W)w);	3007	ev_stop (EV_A_ (W)w);
		3008
		3009	EV_FREQUENT_CHECK;
2714	}	3010	}
2715		3011
2716	void	3012	void
2717	ev_async_send (EV_P_ ev_async *w)	3013	ev_async_send (EV_P_ ev_async *w)
2718	{	3014	{
…		…
2735	once_cb (EV_P_ struct ev_once *once, int revents)	3031	once_cb (EV_P_ struct ev_once *once, int revents)
2736	{	3032	{
2737	void (cb)(int revents, void arg) = once->cb;	3033	void (cb)(int revents, void arg) = once->cb;
2738	void *arg = once->arg;	3034	void *arg = once->arg;
2739		3035
2740	ev_io_stop (EV_A_ &once->io);	3036	ev_io_stop (EV_A_ &once->io);
2741	ev_timer_stop (EV_A_ &once->to);	3037	ev_timer_stop (EV_A_ &once->to);
2742	ev_free (once);	3038	ev_free (once);
2743		3039
2744	cb (revents, arg);	3040	cb (revents, arg);
2745	}	3041	}
2746		3042
2747	static void	3043	static void
2748	once_cb_io (EV_P_ ev_io *w, int revents)	3044	once_cb_io (EV_P_ ev_io *w, int revents)
2749	{	3045	{
2750	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	3046	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, io));
		3047
		3048	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->to));
2751	}	3049	}
2752		3050
2753	static void	3051	static void
2754	once_cb_to (EV_P_ ev_timer *w, int revents)	3052	once_cb_to (EV_P_ ev_timer *w, int revents)
2755	{	3053	{
2756	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	3054	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, to));
		3055
		3056	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->io));
2757	}	3057	}
2758		3058
2759	void	3059	void
2760	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	3060	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
2761	{	3061	{

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Comparing libev/ev.c (file contents): Revision 1.244 by root, Tue May 20 23:49:41 2008 UTC vs. Revision 1.264 by root, Mon Oct 13 23:20:12 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.244 by root, Tue May 20 23:49:41 2008 UTC vs.
Revision 1.264 by root, Mon Oct 13 23:20:12 2008 UTC