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

Comparing libev/ev.c (file contents):
Revision 1.344 by root, Fri Jul 9 20:55:14 2010 UTC vs.
Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
34	* by deleting the provisions above and replace them with the notice	34	* by deleting the provisions above and replace them with the notice
35	* and other provisions required by the GPL. If you do not delete the	35	* and other provisions required by the GPL. If you do not delete the
36	* provisions above, a recipient may use your version of this file under	36	* provisions above, a recipient may use your version of this file under
37	* either the BSD or the GPL.	37	* either the BSD or the GPL.
38	*/	38	*/
39
40	#ifdef __cplusplus
41	extern "C" {
42	#endif
43		39
44	/* this big block deduces configuration from config.h */	40	/* this big block deduces configuration from config.h */
45	#ifndef EV_STANDALONE	41	#ifndef EV_STANDALONE
46	# ifdef EV_CONFIG_H	42	# ifdef EV_CONFIG_H
47	# include EV_CONFIG_H	43	# include EV_CONFIG_H
…		…
182	# include EV_H	178	# include EV_H
183	#else	179	#else
184	# include "ev.h"	180	# include "ev.h"
185	#endif	181	#endif
186		182
		183	EV_CPP(extern "C" {)
		184
187	#ifndef _WIN32	185	#ifndef _WIN32
188	# include <sys/time.h>	186	# include <sys/time.h>
189	# include <sys/wait.h>	187	# include <sys/wait.h>
190	# include <unistd.h>	188	# include <unistd.h>
191	#else	189	#else
…		…
378	# undef EV_USE_INOTIFY	376	# undef EV_USE_INOTIFY
379	# define EV_USE_INOTIFY 0	377	# define EV_USE_INOTIFY 0
380	#endif	378	#endif
381		379
382	#if !EV_USE_NANOSLEEP	380	#if !EV_USE_NANOSLEEP
383	# ifndef _WIN32	381	/* hp-ux has it in sys/time.h, which we unconditionally include above */
		382	# if !defined(_WIN32) && !defined(__hpux)
384	# include <sys/select.h>	383	# include <sys/select.h>
385	# endif	384	# endif
386	#endif	385	#endif
387		386
388	#if EV_USE_INOTIFY	387	#if EV_USE_INOTIFY
389	# include <sys/utsname.h>
390	# include <sys/statfs.h>	388	# include <sys/statfs.h>
391	# include <sys/inotify.h>	389	# include <sys/inotify.h>
392	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	390	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
393	# ifndef IN_DONT_FOLLOW	391	# ifndef IN_DONT_FOLLOW
394	# undef EV_USE_INOTIFY	392	# undef EV_USE_INOTIFY
…		…
411	# define EFD_CLOEXEC O_CLOEXEC	409	# define EFD_CLOEXEC O_CLOEXEC
412	# else	410	# else
413	# define EFD_CLOEXEC 02000000	411	# define EFD_CLOEXEC 02000000
414	# endif	412	# endif
415	# endif	413	# endif
416	# ifdef __cplusplus
417	extern "C" {
418	# endif
419	int (eventfd) (unsigned int initval, int flags);	414	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
420	# ifdef __cplusplus
421	}
422	# endif
423	#endif	415	#endif
424		416
425	#if EV_USE_SIGNALFD	417	#if EV_USE_SIGNALFD
426	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	418	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
427	# include <stdint.h>	419	# include <stdint.h>
…		…
433	# define SFD_CLOEXEC O_CLOEXEC	425	# define SFD_CLOEXEC O_CLOEXEC
434	# else	426	# else
435	# define SFD_CLOEXEC 02000000	427	# define SFD_CLOEXEC 02000000
436	# endif	428	# endif
437	# endif	429	# endif
438	# ifdef __cplusplus
439	extern "C" {
440	# endif
441	int signalfd (int fd, const sigset_t *mask, int flags);	430	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
442		431
443	struct signalfd_siginfo	432	struct signalfd_siginfo
444	{	433	{
445	uint32_t ssi_signo;	434	uint32_t ssi_signo;
446	char pad[128 - sizeof (uint32_t)];	435	char pad[128 - sizeof (uint32_t)];
447	};	436	};
448	# ifdef __cplusplus
449	}
450	# endif	437	#endif
451	#endif
452
453		438
454	/**/	439	/**/
455		440
456	#if EV_VERIFY >= 3	441	#if EV_VERIFY >= 3
457	# define EV_FREQUENT_CHECK ev_verify (EV_A)	442	# define EV_FREQUENT_CHECK ev_verify (EV_A)
…		…
470	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	455	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
471		456
472	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	457	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
473	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	458	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
474		459
		460	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
		461	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
		462
475	#if __GNUC__ >= 4	463	#if __GNUC__ >= 4
476	# define expect(expr,value) __builtin_expect ((expr),(value))	464	# define expect(expr,value) __builtin_expect ((expr),(value))
477	# define noinline __attribute__ ((noinline))	465	# define noinline __attribute__ ((noinline))
478	#else	466	#else
479	# define expect(expr,value) (expr)	467	# define expect(expr,value) (expr)
…		…
511	#define ev_active(w) ((W)(w))->active	499	#define ev_active(w) ((W)(w))->active
512	#define ev_at(w) ((WT)(w))->at	500	#define ev_at(w) ((WT)(w))->at
513		501
514	#if EV_USE_REALTIME	502	#if EV_USE_REALTIME
515	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	503	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
516	/* giving it a reasonably high chance of working on typical architetcures */	504	/* giving it a reasonably high chance of working on typical architectures */
517	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */	505	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
518	#endif	506	#endif
519		507
520	#if EV_USE_MONOTONIC	508	#if EV_USE_MONOTONIC
521	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	509	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
…		…
532	#endif	520	#endif
533		521
534	#ifdef _WIN32	522	#ifdef _WIN32
535	# include "ev_win32.c"	523	# include "ev_win32.c"
536	#endif	524	#endif
		525
		526	/*****************************************************************************/
		527
		528	#ifdef __linux
		529	# include <sys/utsname.h>
		530	#endif
		531
		532	static unsigned int noinline
		533	ev_linux_version (void)
		534	{
		535	#ifdef __linux
		536	unsigned int v = 0;
		537	struct utsname buf;
		538	int i;
		539	char *p = buf.release;
		540
		541	if (uname (&buf))
		542	return 0;
		543
		544	for (i = 3+1; --i; )
		545	{
		546	unsigned int c = 0;
		547
		548	for (;;)
		549	{
		550	if (p >= '0' && p <= '9')
		551	c = c * 10 + *p++ - '0';
		552	else
		553	{
		554	p += *p == '.';
		555	break;
		556	}
		557	}
		558
		559	v = (v << 8) \| c;
		560	}
		561
		562	return v;
		563	#else
		564	return 0;
		565	#endif
		566	}
537		567
538	/*****************************************************************************/	568	/*****************************************************************************/
539		569
540	#if EV_AVOID_STDIO	570	#if EV_AVOID_STDIO
541	static void noinline	571	static void noinline
…		…
562	if (syserr_cb)	592	if (syserr_cb)
563	syserr_cb (msg);	593	syserr_cb (msg);
564	else	594	else
565	{	595	{
566	#if EV_AVOID_STDIO	596	#if EV_AVOID_STDIO
567	const char *err = strerror (errno);
568
569	ev_printerr (msg);	597	ev_printerr (msg);
570	ev_printerr (": ");	598	ev_printerr (": ");
571	ev_printerr (err);	599	ev_printerr (strerror (errno));
572	ev_printerr ("\n");	600	ev_printerr ("\n");
573	#else	601	#else
574	perror (msg);	602	perror (msg);
575	#endif	603	#endif
576	abort ();	604	abort ();
…		…
610	ptr = alloc (ptr, size);	638	ptr = alloc (ptr, size);
611		639
612	if (!ptr && size)	640	if (!ptr && size)
613	{	641	{
614	#if EV_AVOID_STDIO	642	#if EV_AVOID_STDIO
615	ev_printerr ("libev: memory allocation failed, aborting.\n");	643	ev_printerr ("(libev) memory allocation failed, aborting.\n");
616	#else	644	#else
617	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	645	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
618	#endif	646	#endif
619	abort ();	647	abort ();
620	}	648	}
621		649
622	return ptr;	650	return ptr;
…		…
639	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	667	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
640	unsigned char unused;	668	unsigned char unused;
641	#if EV_USE_EPOLL	669	#if EV_USE_EPOLL
642	unsigned int egen; /* generation counter to counter epoll bugs */	670	unsigned int egen; /* generation counter to counter epoll bugs */
643	#endif	671	#endif
644	#if EV_SELECT_IS_WINSOCKET	672	#if EV_SELECT_IS_WINSOCKET \|\| EV_USE_IOCP
645	SOCKET handle;	673	SOCKET handle;
		674	#endif
		675	#if EV_USE_IOCP
		676	OVERLAPPED or, ow;
646	#endif	677	#endif
647	} ANFD;	678	} ANFD;
648		679
649	/* stores the pending event set for a given watcher */	680	/* stores the pending event set for a given watcher */
650	typedef struct	681	typedef struct
…		…
715	# define EV_RELEASE_CB (void)0	746	# define EV_RELEASE_CB (void)0
716	# define EV_ACQUIRE_CB (void)0	747	# define EV_ACQUIRE_CB (void)0
717	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	748	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
718	#endif	749	#endif
719		750
720	#define EVUNLOOP_RECURSE 0x80	751	#define EVBREAK_RECURSE 0x80
721		752
722	/*****************************************************************************/	753	/*****************************************************************************/
723		754
724	#ifndef EV_HAVE_EV_TIME	755	#ifndef EV_HAVE_EV_TIME
725	ev_tstamp	756	ev_tstamp
…		…
769	if (delay > 0.)	800	if (delay > 0.)
770	{	801	{
771	#if EV_USE_NANOSLEEP	802	#if EV_USE_NANOSLEEP
772	struct timespec ts;	803	struct timespec ts;
773		804
774	ts.tv_sec = (time_t)delay;	805	EV_TS_SET (ts, delay);
775	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
776
777	nanosleep (&ts, 0);	806	nanosleep (&ts, 0);
778	#elif defined(_WIN32)	807	#elif defined(_WIN32)
779	Sleep ((unsigned long)(delay * 1e3));	808	Sleep ((unsigned long)(delay * 1e3));
780	#else	809	#else
781	struct timeval tv;	810	struct timeval tv;
782		811
783	tv.tv_sec = (time_t)delay;
784	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
785
786	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	812	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
787	/* something not guaranteed by newer posix versions, but guaranteed */	813	/* something not guaranteed by newer posix versions, but guaranteed */
788	/* by older ones */	814	/* by older ones */
		815	EV_TV_SET (tv, delay);
789	select (0, 0, 0, 0, &tv);	816	select (0, 0, 0, 0, &tv);
790	#endif	817	#endif
791	}	818	}
792	}	819	}
793		820
		821	inline_speed int
		822	ev_timeout_to_ms (ev_tstamp timeout)
		823	{
		824	int ms = timeout * 1000. + .999999;
		825
		826	return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
		827	}
		828
794	/*****************************************************************************/	829	/*****************************************************************************/
795		830
796	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /	831	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /
797		832
798	/* find a suitable new size for the given array, */	833	/* find a suitable new size for the given array, */
799	/* hopefully by rounding to a ncie-to-malloc size */	834	/* hopefully by rounding to a nice-to-malloc size */
800	inline_size int	835	inline_size int
801	array_nextsize (int elem, int cur, int cnt)	836	array_nextsize (int elem, int cur, int cnt)
802	{	837	{
803	int ncur = cur + 1;	838	int ncur = cur + 1;
804		839
…		…
939	inline_size void	974	inline_size void
940	fd_reify (EV_P)	975	fd_reify (EV_P)
941	{	976	{
942	int i;	977	int i;
943		978
		979	#if EV_SELECT_IS_WINSOCKET \|\| EV_USE_IOCP
		980	for (i = 0; i < fdchangecnt; ++i)
		981	{
		982	int fd = fdchanges [i];
		983	ANFD *anfd = anfds + fd;
		984
		985	if (anfd->reify & EV__IOFDSET)
		986	{
		987	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		988
		989	if (handle != anfd->handle)
		990	{
		991	unsigned long arg;
		992
		993	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		994
		995	/* handle changed, but fd didn't - we need to do it in two steps */
		996	backend_modify (EV_A_ fd, anfd->events, 0);
		997	anfd->events = 0;
		998	anfd->handle = handle;
		999	}
		1000	}
		1001	}
		1002	#endif
		1003
944	for (i = 0; i < fdchangecnt; ++i)	1004	for (i = 0; i < fdchangecnt; ++i)
945	{	1005	{
946	int fd = fdchanges [i];	1006	int fd = fdchanges [i];
947	ANFD *anfd = anfds + fd;	1007	ANFD *anfd = anfds + fd;
948	ev_io *w;	1008	ev_io *w;
949		1009
950	unsigned char events = 0;	1010	unsigned char o_events = anfd->events;
		1011	unsigned char o_reify = anfd->reify;
951		1012
952	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	1013	anfd->reify = 0;
953	events \|= (unsigned char)w->events;
954		1014
955	#if EV_SELECT_IS_WINSOCKET	1015	/if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation /
956	if (events)
957	{	1016	{
958	unsigned long arg;	1017	anfd->events = 0;
959	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	1018
960	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	1019	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
		1020	anfd->events \|= (unsigned char)w->events;
		1021
		1022	if (o_events != anfd->events)
		1023	o_reify = EV__IOFDSET; /* actually \|= */
961	}	1024	}
962	#endif
963		1025
964	{	1026	if (o_reify & EV__IOFDSET)
965	unsigned char o_events = anfd->events;
966	unsigned char o_reify = anfd->reify;
967
968	anfd->reify = 0;
969	anfd->events = events;
970
971	if (o_events != events \|\| o_reify & EV__IOFDSET)
972	backend_modify (EV_A_ fd, o_events, events);	1027	backend_modify (EV_A_ fd, o_events, anfd->events);
973	}
974	}	1028	}
975		1029
976	fdchangecnt = 0;	1030	fdchangecnt = 0;
977	}	1031	}
978		1032
…		…
1071	}	1125	}
1072		1126
1073	/*****************************************************************************/	1127	/*****************************************************************************/
1074		1128
1075	/*	1129	/*
1076	* the heap functions want a real array index. array index 0 uis guaranteed to not	1130	* the heap functions want a real array index. array index 0 is guaranteed to not
1077	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1131	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1078	* the branching factor of the d-tree.	1132	* the branching factor of the d-tree.
1079	*/	1133	*/
1080		1134
1081	/*	1135	/*
…		…
1281	uint64_t counter = 1;	1335	uint64_t counter = 1;
1282	write (evfd, &counter, sizeof (uint64_t));	1336	write (evfd, &counter, sizeof (uint64_t));
1283	}	1337	}
1284	else	1338	else
1285	#endif	1339	#endif
		1340	/* win32 people keep sending patches that change this write() to send() */
		1341	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1342	/* so when you think this write should be a send instead, please find out */
		1343	/* where your send() is from - it's definitely not the microsoft send, and */
		1344	/* tell me. thank you. */
1286	write (evpipe [1], &dummy, 1);	1345	write (evpipe [1], &dummy, 1);
1287		1346
1288	errno = old_errno;	1347	errno = old_errno;
1289	}	1348	}
1290	}	1349	}
…		…
1304	}	1363	}
1305	else	1364	else
1306	#endif	1365	#endif
1307	{	1366	{
1308	char dummy;	1367	char dummy;
		1368	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1309	read (evpipe [0], &dummy, 1);	1369	read (evpipe [0], &dummy, 1);
1310	}	1370	}
1311		1371
		1372	#if EV_SIGNAL_ENABLE
1312	if (sig_pending)	1373	if (sig_pending)
1313	{	1374	{
1314	sig_pending = 0;	1375	sig_pending = 0;
1315		1376
1316	for (i = EV_NSIG - 1; i--; )	1377	for (i = EV_NSIG - 1; i--; )
1317	if (expect_false (signals [i].pending))	1378	if (expect_false (signals [i].pending))
1318	ev_feed_signal_event (EV_A_ i + 1);	1379	ev_feed_signal_event (EV_A_ i + 1);
1319	}	1380	}
		1381	#endif
1320		1382
1321	#if EV_ASYNC_ENABLE	1383	#if EV_ASYNC_ENABLE
1322	if (async_pending)	1384	if (async_pending)
1323	{	1385	{
1324	async_pending = 0;	1386	async_pending = 0;
…		…
1333	#endif	1395	#endif
1334	}	1396	}
1335		1397
1336	/*****************************************************************************/	1398	/*****************************************************************************/
1337		1399
		1400	void
		1401	ev_feed_signal (int signum)
		1402	{
		1403	#if EV_MULTIPLICITY
		1404	EV_P = signals [signum - 1].loop;
		1405
		1406	if (!EV_A)
		1407	return;
		1408	#endif
		1409
		1410	signals [signum - 1].pending = 1;
		1411	evpipe_write (EV_A_ &sig_pending);
		1412	}
		1413
1338	static void	1414	static void
1339	ev_sighandler (int signum)	1415	ev_sighandler (int signum)
1340	{	1416	{
1341	#if EV_MULTIPLICITY
1342	EV_P = signals [signum - 1].loop;
1343	#endif
1344
1345	#ifdef _WIN32	1417	#ifdef _WIN32
1346	signal (signum, ev_sighandler);	1418	signal (signum, ev_sighandler);
1347	#endif	1419	#endif
1348		1420
1349	signals [signum - 1].pending = 1;	1421	ev_feed_signal (signum);
1350	evpipe_write (EV_A_ &sig_pending);
1351	}	1422	}
1352		1423
1353	void noinline	1424	void noinline
1354	ev_feed_signal_event (EV_P_ int signum)	1425	ev_feed_signal_event (EV_P_ int signum)
1355	{	1426	{
…		…
1455		1526
1456	#endif	1527	#endif
1457		1528
1458	/*****************************************************************************/	1529	/*****************************************************************************/
1459		1530
		1531	#if EV_USE_IOCP
		1532	# include "ev_iocp.c"
		1533	#endif
1460	#if EV_USE_PORT	1534	#if EV_USE_PORT
1461	# include "ev_port.c"	1535	# include "ev_port.c"
1462	#endif	1536	#endif
1463	#if EV_USE_KQUEUE	1537	#if EV_USE_KQUEUE
1464	# include "ev_kqueue.c"	1538	# include "ev_kqueue.c"
…		…
1537	ev_embeddable_backends (void)	1611	ev_embeddable_backends (void)
1538	{	1612	{
1539	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;	1613	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
1540		1614
1541	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1615	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1542	/* please fix it and tell me how to detect the fix */	1616	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1543	flags &= ~EVBACKEND_EPOLL;	1617	flags &= ~EVBACKEND_EPOLL;
1544		1618
1545	return flags;	1619	return flags;
1546	}	1620	}
1547		1621
1548	unsigned int	1622	unsigned int
…		…
1604	static void noinline	1678	static void noinline
1605	loop_init (EV_P_ unsigned int flags)	1679	loop_init (EV_P_ unsigned int flags)
1606	{	1680	{
1607	if (!backend)	1681	if (!backend)
1608	{	1682	{
		1683	origflags = flags;
		1684
1609	#if EV_USE_REALTIME	1685	#if EV_USE_REALTIME
1610	if (!have_realtime)	1686	if (!have_realtime)
1611	{	1687	{
1612	struct timespec ts;	1688	struct timespec ts;
1613		1689
…		…
1658	#endif	1734	#endif
1659	#if EV_USE_SIGNALFD	1735	#if EV_USE_SIGNALFD
1660	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	1736	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1661	#endif	1737	#endif
1662		1738
1663	if (!(flags & 0x0000ffffU))	1739	if (!(flags & EVBACKEND_MASK))
1664	flags \|= ev_recommended_backends ();	1740	flags \|= ev_recommended_backends ();
1665		1741
		1742	#if EV_USE_IOCP
		1743	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1744	#endif
1666	#if EV_USE_PORT	1745	#if EV_USE_PORT
1667	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1746	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1668	#endif	1747	#endif
1669	#if EV_USE_KQUEUE	1748	#if EV_USE_KQUEUE
1670	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1749	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1687	#endif	1766	#endif
1688	}	1767	}
1689	}	1768	}
1690		1769
1691	/* free up a loop structure */	1770	/* free up a loop structure */
1692	static void noinline	1771	void
1693	loop_destroy (EV_P)	1772	ev_loop_destroy (EV_P)
1694	{	1773	{
1695	int i;	1774	int i;
		1775
		1776	#if EV_MULTIPLICITY
		1777	/* mimic free (0) */
		1778	if (!EV_A)
		1779	return;
		1780	#endif
		1781
		1782	#if EV_CLEANUP_ENABLE
		1783	/* queue cleanup watchers (and execute them) */
		1784	if (expect_false (cleanupcnt))
		1785	{
		1786	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1787	EV_INVOKE_PENDING;
		1788	}
		1789	#endif
		1790
		1791	#if EV_CHILD_ENABLE
		1792	if (ev_is_active (&childev))
		1793	{
		1794	ev_ref (EV_A); /* child watcher */
		1795	ev_signal_stop (EV_A_ &childev);
		1796	}
		1797	#endif
1696		1798
1697	if (ev_is_active (&pipe_w))	1799	if (ev_is_active (&pipe_w))
1698	{	1800	{
1699	/ev_ref (EV_A);/	1801	/ev_ref (EV_A);/
1700	/ev_io_stop (EV_A_ &pipe_w);/	1802	/ev_io_stop (EV_A_ &pipe_w);/
…		…
1722	#endif	1824	#endif
1723		1825
1724	if (backend_fd >= 0)	1826	if (backend_fd >= 0)
1725	close (backend_fd);	1827	close (backend_fd);
1726		1828
		1829	#if EV_USE_IOCP
		1830	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1831	#endif
1727	#if EV_USE_PORT	1832	#if EV_USE_PORT
1728	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1833	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1729	#endif	1834	#endif
1730	#if EV_USE_KQUEUE	1835	#if EV_USE_KQUEUE
1731	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1836	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1758	array_free (periodic, EMPTY);	1863	array_free (periodic, EMPTY);
1759	#endif	1864	#endif
1760	#if EV_FORK_ENABLE	1865	#if EV_FORK_ENABLE
1761	array_free (fork, EMPTY);	1866	array_free (fork, EMPTY);
1762	#endif	1867	#endif
		1868	#if EV_CLEANUP_ENABLE
		1869	array_free (cleanup, EMPTY);
		1870	#endif
1763	array_free (prepare, EMPTY);	1871	array_free (prepare, EMPTY);
1764	array_free (check, EMPTY);	1872	array_free (check, EMPTY);
1765	#if EV_ASYNC_ENABLE	1873	#if EV_ASYNC_ENABLE
1766	array_free (async, EMPTY);	1874	array_free (async, EMPTY);
1767	#endif	1875	#endif
1768		1876
1769	backend = 0;	1877	backend = 0;
		1878
		1879	#if EV_MULTIPLICITY
		1880	if (ev_is_default_loop (EV_A))
		1881	#endif
		1882	ev_default_loop_ptr = 0;
		1883	#if EV_MULTIPLICITY
		1884	else
		1885	ev_free (EV_A);
		1886	#endif
1770	}	1887	}
1771		1888
1772	#if EV_USE_INOTIFY	1889	#if EV_USE_INOTIFY
1773	inline_size void infy_fork (EV_P);	1890	inline_size void infy_fork (EV_P);
1774	#endif	1891	#endif
…		…
1833	loop_init (EV_A_ flags);	1950	loop_init (EV_A_ flags);
1834		1951
1835	if (ev_backend (EV_A))	1952	if (ev_backend (EV_A))
1836	return EV_A;	1953	return EV_A;
1837		1954
		1955	ev_free (EV_A);
1838	return 0;	1956	return 0;
1839	}	1957	}
1840		1958
1841	void
1842	ev_loop_destroy (EV_P)
1843	{
1844	loop_destroy (EV_A);
1845	ev_free (loop);
1846	}
1847
1848	void
1849	ev_loop_fork (EV_P)
1850	{
1851	postfork = 1; /* must be in line with ev_default_fork */
1852	}
1853	#endif /* multiplicity */	1959	#endif /* multiplicity */
1854		1960
1855	#if EV_VERIFY	1961	#if EV_VERIFY
1856	static void noinline	1962	static void noinline
1857	verify_watcher (EV_P_ W w)	1963	verify_watcher (EV_P_ W w)
…		…
1932	#if EV_FORK_ENABLE	2038	#if EV_FORK_ENABLE
1933	assert (forkmax >= forkcnt);	2039	assert (forkmax >= forkcnt);
1934	array_verify (EV_A_ (W *)forks, forkcnt);	2040	array_verify (EV_A_ (W *)forks, forkcnt);
1935	#endif	2041	#endif
1936		2042
		2043	#if EV_CLEANUP_ENABLE
		2044	assert (cleanupmax >= cleanupcnt);
		2045	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2046	#endif
		2047
1937	#if EV_ASYNC_ENABLE	2048	#if EV_ASYNC_ENABLE
1938	assert (asyncmax >= asynccnt);	2049	assert (asyncmax >= asynccnt);
1939	array_verify (EV_A_ (W *)asyncs, asynccnt);	2050	array_verify (EV_A_ (W *)asyncs, asynccnt);
1940	#endif	2051	#endif
1941		2052
…		…
1959	}	2070	}
1960	#endif	2071	#endif
1961		2072
1962	#if EV_MULTIPLICITY	2073	#if EV_MULTIPLICITY
1963	struct ev_loop *	2074	struct ev_loop *
1964	ev_default_loop_init (unsigned int flags)
1965	#else	2075	#else
1966	int	2076	int
		2077	#endif
1967	ev_default_loop (unsigned int flags)	2078	ev_default_loop (unsigned int flags)
1968	#endif
1969	{	2079	{
1970	if (!ev_default_loop_ptr)	2080	if (!ev_default_loop_ptr)
1971	{	2081	{
1972	#if EV_MULTIPLICITY	2082	#if EV_MULTIPLICITY
1973	EV_P = ev_default_loop_ptr = &default_loop_struct;	2083	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1992		2102
1993	return ev_default_loop_ptr;	2103	return ev_default_loop_ptr;
1994	}	2104	}
1995		2105
1996	void	2106	void
1997	ev_default_destroy (void)	2107	ev_loop_fork (EV_P)
1998	{	2108	{
1999	#if EV_MULTIPLICITY
2000	EV_P = ev_default_loop_ptr;
2001	#endif
2002
2003	ev_default_loop_ptr = 0;
2004
2005	#if EV_CHILD_ENABLE
2006	ev_ref (EV_A); /* child watcher */
2007	ev_signal_stop (EV_A_ &childev);
2008	#endif
2009
2010	loop_destroy (EV_A);
2011	}
2012
2013	void
2014	ev_default_fork (void)
2015	{
2016	#if EV_MULTIPLICITY
2017	EV_P = ev_default_loop_ptr;
2018	#endif
2019
2020	postfork = 1; /* must be in line with ev_loop_fork */	2109	postfork = 1; /* must be in line with ev_default_fork */
2021	}	2110	}
2022		2111
2023	/*****************************************************************************/	2112	/*****************************************************************************/
2024		2113
2025	void	2114	void
…		…
2047		2136
2048	for (pri = NUMPRI; pri--; )	2137	for (pri = NUMPRI; pri--; )
2049	while (pendingcnt [pri])	2138	while (pendingcnt [pri])
2050	{	2139	{
2051	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2140	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2052
2053	/assert (("libev: non-pending watcher on pending list", p->w->pending));/
2054	/* ^ this is no longer true, as pending_w could be here */
2055		2141
2056	p->w->pending = 0;	2142	p->w->pending = 0;
2057	EV_CB_INVOKE (p->w, p->events);	2143	EV_CB_INVOKE (p->w, p->events);
2058	EV_FREQUENT_CHECK;	2144	EV_FREQUENT_CHECK;
2059	}	2145	}
…		…
2121	feed_reverse_done (EV_A_ EV_TIMER);	2207	feed_reverse_done (EV_A_ EV_TIMER);
2122	}	2208	}
2123	}	2209	}
2124		2210
2125	#if EV_PERIODIC_ENABLE	2211	#if EV_PERIODIC_ENABLE
		2212
		2213	inline_speed void
		2214	periodic_recalc (EV_P_ ev_periodic *w)
		2215	{
		2216	/* TODO: use slow but potentially more correct incremental algo, */
		2217	/* also do not rely on ceil */
		2218	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		2219	}
		2220
2126	/* make periodics pending */	2221	/* make periodics pending */
2127	inline_size void	2222	inline_size void
2128	periodics_reify (EV_P)	2223	periodics_reify (EV_P)
2129	{	2224	{
2130	EV_FREQUENT_CHECK;	2225	EV_FREQUENT_CHECK;
…		…
2149	ANHE_at_cache (periodics [HEAP0]);	2244	ANHE_at_cache (periodics [HEAP0]);
2150	downheap (periodics, periodiccnt, HEAP0);	2245	downheap (periodics, periodiccnt, HEAP0);
2151	}	2246	}
2152	else if (w->interval)	2247	else if (w->interval)
2153	{	2248	{
2154	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2249	periodic_recalc (EV_A_ w);
		2250
2155	/* if next trigger time is not sufficiently in the future, put it there */	2251	/* if next trigger time is not sufficiently in the future, put it there */
2156	/* this might happen because of floating point inexactness */	2252	/* this might happen because of floating point inexactness */
2157	if (ev_at (w) - ev_rt_now < TIME_EPSILON)	2253	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2158	{	2254	{
2159	ev_at (w) += w->interval;	2255	ev_at (w) += w->interval;
…		…
2179	feed_reverse_done (EV_A_ EV_PERIODIC);	2275	feed_reverse_done (EV_A_ EV_PERIODIC);
2180	}	2276	}
2181	}	2277	}
2182		2278
2183	/* simply recalculate all periodics */	2279	/* simply recalculate all periodics */
2184	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2280	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2185	static void noinline	2281	static void noinline
2186	periodics_reschedule (EV_P)	2282	periodics_reschedule (EV_P)
2187	{	2283	{
2188	int i;	2284	int i;
2189		2285
…		…
2193	ev_periodic w = (ev_periodic )ANHE_w (periodics [i]);	2289	ev_periodic w = (ev_periodic )ANHE_w (periodics [i]);
2194		2290
2195	if (w->reschedule_cb)	2291	if (w->reschedule_cb)
2196	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2292	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2197	else if (w->interval)	2293	else if (w->interval)
2198	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2294	periodic_recalc (EV_A_ w);
2199		2295
2200	ANHE_at_cache (periodics [i]);	2296	ANHE_at_cache (periodics [i]);
2201	}	2297	}
2202		2298
2203	reheap (periodics, periodiccnt);	2299	reheap (periodics, periodiccnt);
…		…
2285	mn_now = ev_rt_now;	2381	mn_now = ev_rt_now;
2286	}	2382	}
2287	}	2383	}
2288		2384
2289	void	2385	void
2290	ev_loop (EV_P_ int flags)	2386	ev_run (EV_P_ int flags)
2291	{	2387	{
2292	#if EV_FEATURE_API	2388	#if EV_FEATURE_API
2293	++loop_depth;	2389	++loop_depth;
2294	#endif	2390	#endif
2295		2391
2296	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2392	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2297		2393
2298	loop_done = EVUNLOOP_CANCEL;	2394	loop_done = EVBREAK_CANCEL;
2299		2395
2300	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2396	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2301		2397
2302	do	2398	do
2303	{	2399	{
…		…
2346	/* calculate blocking time */	2442	/* calculate blocking time */
2347	{	2443	{
2348	ev_tstamp waittime = 0.;	2444	ev_tstamp waittime = 0.;
2349	ev_tstamp sleeptime = 0.;	2445	ev_tstamp sleeptime = 0.;
2350		2446
		2447	/* remember old timestamp for io_blocktime calculation */
		2448	ev_tstamp prev_mn_now = mn_now;
		2449
		2450	/* update time to cancel out callback processing overhead */
		2451	time_update (EV_A_ 1e100);
		2452
2351	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))	2453	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt)))
2352	{	2454	{
2353	/* remember old timestamp for io_blocktime calculation */
2354	ev_tstamp prev_mn_now = mn_now;
2355
2356	/* update time to cancel out callback processing overhead */
2357	time_update (EV_A_ 1e100);
2358
2359	waittime = MAX_BLOCKTIME;	2455	waittime = MAX_BLOCKTIME;
2360		2456
2361	if (timercnt)	2457	if (timercnt)
2362	{	2458	{
2363	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2459	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2393	}	2489	}
2394		2490
2395	#if EV_FEATURE_API	2491	#if EV_FEATURE_API
2396	++loop_count;	2492	++loop_count;
2397	#endif	2493	#endif
2398	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2494	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2399	backend_poll (EV_A_ waittime);	2495	backend_poll (EV_A_ waittime);
2400	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2496	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2401		2497
2402	/* update ev_rt_now, do magic */	2498	/* update ev_rt_now, do magic */
2403	time_update (EV_A_ waittime + sleeptime);	2499	time_update (EV_A_ waittime + sleeptime);
2404	}	2500	}
2405		2501
…		…
2423	EV_INVOKE_PENDING;	2519	EV_INVOKE_PENDING;
2424	}	2520	}
2425	while (expect_true (	2521	while (expect_true (
2426	activecnt	2522	activecnt
2427	&& !loop_done	2523	&& !loop_done
2428	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))	2524	&& !(flags & (EVRUN_ONCE \| EVRUN_NOWAIT))
2429	));	2525	));
2430		2526
2431	if (loop_done == EVUNLOOP_ONE)	2527	if (loop_done == EVBREAK_ONE)
2432	loop_done = EVUNLOOP_CANCEL;	2528	loop_done = EVBREAK_CANCEL;
2433		2529
2434	#if EV_FEATURE_API	2530	#if EV_FEATURE_API
2435	--loop_depth;	2531	--loop_depth;
2436	#endif	2532	#endif
2437	}	2533	}
2438		2534
2439	void	2535	void
2440	ev_unloop (EV_P_ int how)	2536	ev_break (EV_P_ int how)
2441	{	2537	{
2442	loop_done = how;	2538	loop_done = how;
2443	}	2539	}
2444		2540
2445	void	2541	void
…		…
2593	EV_FREQUENT_CHECK;	2689	EV_FREQUENT_CHECK;
2594		2690
2595	wlist_del (&anfds[w->fd].head, (WL)w);	2691	wlist_del (&anfds[w->fd].head, (WL)w);
2596	ev_stop (EV_A_ (W)w);	2692	ev_stop (EV_A_ (W)w);
2597		2693
2598	fd_change (EV_A_ w->fd, 1);	2694	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2599		2695
2600	EV_FREQUENT_CHECK;	2696	EV_FREQUENT_CHECK;
2601	}	2697	}
2602		2698
2603	void noinline	2699	void noinline
…		…
2695	if (w->reschedule_cb)	2791	if (w->reschedule_cb)
2696	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2792	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2697	else if (w->interval)	2793	else if (w->interval)
2698	{	2794	{
2699	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	2795	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2700	/* this formula differs from the one in periodic_reify because we do not always round up */	2796	periodic_recalc (EV_A_ w);
2701	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2702	}	2797	}
2703	else	2798	else
2704	ev_at (w) = w->offset;	2799	ev_at (w) = w->offset;
2705		2800
2706	EV_FREQUENT_CHECK;	2801	EV_FREQUENT_CHECK;
…		…
2827	sa.sa_handler = ev_sighandler;	2922	sa.sa_handler = ev_sighandler;
2828	sigfillset (&sa.sa_mask);	2923	sigfillset (&sa.sa_mask);
2829	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2924	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2830	sigaction (w->signum, &sa, 0);	2925	sigaction (w->signum, &sa, 0);
2831		2926
		2927	if (origflags & EVFLAG_NOSIGMASK)
		2928	{
2832	sigemptyset (&sa.sa_mask);	2929	sigemptyset (&sa.sa_mask);
2833	sigaddset (&sa.sa_mask, w->signum);	2930	sigaddset (&sa.sa_mask, w->signum);
2834	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	2931	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2932	}
2835	#endif	2933	#endif
2836	}	2934	}
2837		2935
2838	EV_FREQUENT_CHECK;	2936	EV_FREQUENT_CHECK;
2839	}	2937	}
…		…
3055	{	3153	{
3056	struct inotify_event ev = (struct inotify_event )(buf + ofs);	3154	struct inotify_event ev = (struct inotify_event )(buf + ofs);
3057	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3155	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3058	ofs += sizeof (struct inotify_event) + ev->len;	3156	ofs += sizeof (struct inotify_event) + ev->len;
3059	}	3157	}
3060	}
3061
3062	inline_size unsigned int
3063	ev_linux_version (void)
3064	{
3065	struct utsname buf;
3066	unsigned int v;
3067	int i;
3068	char *p = buf.release;
3069
3070	if (uname (&buf))
3071	return 0;
3072
3073	for (i = 3+1; --i; )
3074	{
3075	unsigned int c = 0;
3076
3077	for (;;)
3078	{
3079	if (p >= '0' && p <= '9')
3080	c = c * 10 + *p++ - '0';
3081	else
3082	{
3083	p += *p == '.';
3084	break;
3085	}
3086	}
3087
3088	v = (v << 8) \| c;
3089	}
3090
3091	return v;
3092	}	3158	}
3093		3159
3094	inline_size void	3160	inline_size void
3095	ev_check_2625 (EV_P)	3161	ev_check_2625 (EV_P)
3096	{	3162	{
…		…
3420		3486
3421	#if EV_EMBED_ENABLE	3487	#if EV_EMBED_ENABLE
3422	void noinline	3488	void noinline
3423	ev_embed_sweep (EV_P_ ev_embed *w)	3489	ev_embed_sweep (EV_P_ ev_embed *w)
3424	{	3490	{
3425	ev_loop (w->other, EVLOOP_NONBLOCK);	3491	ev_run (w->other, EVRUN_NOWAIT);
3426	}	3492	}
3427		3493
3428	static void	3494	static void
3429	embed_io_cb (EV_P_ ev_io *io, int revents)	3495	embed_io_cb (EV_P_ ev_io *io, int revents)
3430	{	3496	{
3431	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	3497	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
3432		3498
3433	if (ev_cb (w))	3499	if (ev_cb (w))
3434	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3500	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3435	else	3501	else
3436	ev_loop (w->other, EVLOOP_NONBLOCK);	3502	ev_run (w->other, EVRUN_NOWAIT);
3437	}	3503	}
3438		3504
3439	static void	3505	static void
3440	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3506	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3441	{	3507	{
…		…
3445	EV_P = w->other;	3511	EV_P = w->other;
3446		3512
3447	while (fdchangecnt)	3513	while (fdchangecnt)
3448	{	3514	{
3449	fd_reify (EV_A);	3515	fd_reify (EV_A);
3450	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3516	ev_run (EV_A_ EVRUN_NOWAIT);
3451	}	3517	}
3452	}	3518	}
3453	}	3519	}
3454		3520
3455	static void	3521	static void
…		…
3461		3527
3462	{	3528	{
3463	EV_P = w->other;	3529	EV_P = w->other;
3464		3530
3465	ev_loop_fork (EV_A);	3531	ev_loop_fork (EV_A);
3466	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3532	ev_run (EV_A_ EVRUN_NOWAIT);
3467	}	3533	}
3468		3534
3469	ev_embed_start (EV_A_ w);	3535	ev_embed_start (EV_A_ w);
3470	}	3536	}
3471		3537
…		…
3563		3629
3564	EV_FREQUENT_CHECK;	3630	EV_FREQUENT_CHECK;
3565	}	3631	}
3566	#endif	3632	#endif
3567		3633
3568	#if EV_ASYNC_ENABLE	3634	#if EV_CLEANUP_ENABLE
3569	void	3635	void
3570	ev_async_start (EV_P_ ev_async *w)	3636	ev_cleanup_start (EV_P_ ev_cleanup *w)
3571	{	3637	{
3572	if (expect_false (ev_is_active (w)))	3638	if (expect_false (ev_is_active (w)))
3573	return;	3639	return;
		3640
		3641	EV_FREQUENT_CHECK;
		3642
		3643	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3644	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3645	cleanups [cleanupcnt - 1] = w;
		3646
		3647	/* cleanup watchers should never keep a refcount on the loop */
		3648	ev_unref (EV_A);
		3649	EV_FREQUENT_CHECK;
		3650	}
		3651
		3652	void
		3653	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3654	{
		3655	clear_pending (EV_A_ (W)w);
		3656	if (expect_false (!ev_is_active (w)))
		3657	return;
		3658
		3659	EV_FREQUENT_CHECK;
		3660	ev_ref (EV_A);
		3661
		3662	{
		3663	int active = ev_active (w);
		3664
		3665	cleanups [active - 1] = cleanups [--cleanupcnt];
		3666	ev_active (cleanups [active - 1]) = active;
		3667	}
		3668
		3669	ev_stop (EV_A_ (W)w);
		3670
		3671	EV_FREQUENT_CHECK;
		3672	}
		3673	#endif
		3674
		3675	#if EV_ASYNC_ENABLE
		3676	void
		3677	ev_async_start (EV_P_ ev_async *w)
		3678	{
		3679	if (expect_false (ev_is_active (w)))
		3680	return;
		3681
		3682	w->sent = 0;
3574		3683
3575	evpipe_init (EV_A);	3684	evpipe_init (EV_A);
3576		3685
3577	EV_FREQUENT_CHECK;	3686	EV_FREQUENT_CHECK;
3578		3687
…		…
3798		3907
3799	#if EV_MULTIPLICITY	3908	#if EV_MULTIPLICITY
3800	#include "ev_wrap.h"	3909	#include "ev_wrap.h"
3801	#endif	3910	#endif
3802		3911
3803	#ifdef __cplusplus	3912	EV_CPP(})
3804	}
3805	#endif
3806		3913

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Comparing libev/ev.c (file contents): Revision 1.344 by root, Fri Jul 9 20:55:14 2010 UTC vs. Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.344 by root, Fri Jul 9 20:55:14 2010 UTC vs.
Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC