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

Comparing libev/ev.c (file contents):
Revision 1.251 by root, Thu May 22 03:42:34 2008 UTC vs.
Revision 1.274 by root, Thu Nov 20 00:35:10 2008 UTC

…		…
47	# include EV_CONFIG_H	47	# include EV_CONFIG_H
48	# else	48	# else
49	# include "config.h"	49	# include "config.h"
50	# endif	50	# endif
51		51
		52	# if HAVE_CLOCK_SYSCALL
		53	# ifndef EV_USE_CLOCK_SYSCALL
		54	# define EV_USE_CLOCK_SYSCALL 1
		55	# ifndef EV_USE_REALTIME
		56	# define EV_USE_REALTIME 0
		57	# endif
		58	# ifndef EV_USE_MONOTONIC
		59	# define EV_USE_MONOTONIC 1
		60	# endif
		61	# endif
		62	# endif
		63
52	# if HAVE_CLOCK_GETTIME	64	# if HAVE_CLOCK_GETTIME
53	# ifndef EV_USE_MONOTONIC	65	# ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	66	# define EV_USE_MONOTONIC 1
55	# endif	67	# endif
56	# ifndef EV_USE_REALTIME	68	# ifndef EV_USE_REALTIME
…		…
154	#ifndef _WIN32	166	#ifndef _WIN32
155	# include <sys/time.h>	167	# include <sys/time.h>
156	# include <sys/wait.h>	168	# include <sys/wait.h>
157	# include <unistd.h>	169	# include <unistd.h>
158	#else	170	#else
		171	# include <io.h>
159	# define WIN32_LEAN_AND_MEAN	172	# define WIN32_LEAN_AND_MEAN
160	# include <windows.h>	173	# include <windows.h>
161	# ifndef EV_SELECT_IS_WINSOCKET	174	# ifndef EV_SELECT_IS_WINSOCKET
162	# define EV_SELECT_IS_WINSOCKET 1	175	# define EV_SELECT_IS_WINSOCKET 1
163	# endif	176	# endif
164	#endif	177	#endif
165		178
166	/* this block tries to deduce configuration from header-defined symbols and defaults */	179	/* this block tries to deduce configuration from header-defined symbols and defaults */
167		180
		181	#ifndef EV_USE_CLOCK_SYSCALL
		182	# if __linux && __GLIBC__ >= 2
		183	# define EV_USE_CLOCK_SYSCALL 1
		184	# else
		185	# define EV_USE_CLOCK_SYSCALL 0
		186	# endif
		187	#endif
		188
168	#ifndef EV_USE_MONOTONIC	189	#ifndef EV_USE_MONOTONIC
		190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		191	# define EV_USE_MONOTONIC 1
		192	# else
169	# define EV_USE_MONOTONIC 0	193	# define EV_USE_MONOTONIC 0
		194	# endif
170	#endif	195	#endif
171		196
172	#ifndef EV_USE_REALTIME	197	#ifndef EV_USE_REALTIME
173	# define EV_USE_REALTIME 0	198	# define EV_USE_REALTIME 0
174	#endif	199	#endif
175		200
176	#ifndef EV_USE_NANOSLEEP	201	#ifndef EV_USE_NANOSLEEP
		202	# if _POSIX_C_SOURCE >= 199309L
		203	# define EV_USE_NANOSLEEP 1
		204	# else
177	# define EV_USE_NANOSLEEP 0	205	# define EV_USE_NANOSLEEP 0
		206	# endif
178	#endif	207	#endif
179		208
180	#ifndef EV_USE_SELECT	209	#ifndef EV_USE_SELECT
181	# define EV_USE_SELECT 1	210	# define EV_USE_SELECT 1
182	#endif	211	#endif
…		…
277	# include <sys/select.h>	306	# include <sys/select.h>
278	# endif	307	# endif
279	#endif	308	#endif
280		309
281	#if EV_USE_INOTIFY	310	#if EV_USE_INOTIFY
		311	# include <sys/utsname.h>
		312	# include <sys/statfs.h>
282	# include <sys/inotify.h>	313	# include <sys/inotify.h>
		314	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
		315	# ifndef IN_DONT_FOLLOW
		316	# undef EV_USE_INOTIFY
		317	# define EV_USE_INOTIFY 0
		318	# endif
283	#endif	319	#endif
284		320
285	#if EV_SELECT_IS_WINSOCKET	321	#if EV_SELECT_IS_WINSOCKET
286	# include <winsock.h>	322	# include <winsock.h>
		323	#endif
		324
		325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		326	/* which makes programs even slower. might work on other unices, too. */
		327	#if EV_USE_CLOCK_SYSCALL
		328	# include <syscall.h>
		329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		330	# undef EV_USE_MONOTONIC
		331	# define EV_USE_MONOTONIC 1
287	#endif	332	#endif
288		333
289	#if EV_USE_EVENTFD	334	#if EV_USE_EVENTFD
290	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
291	# include <stdint.h>	336	# include <stdint.h>
…		…
373	{	418	{
374	syserr_cb = cb;	419	syserr_cb = cb;
375	}	420	}
376		421
377	static void noinline	422	static void noinline
378	syserr (const char *msg)	423	ev_syserr (const char *msg)
379	{	424	{
380	if (!msg)	425	if (!msg)
381	msg = "(libev) system error";	426	msg = "(libev) system error";
382		427
383	if (syserr_cb)	428	if (syserr_cb)
…		…
434	typedef struct	479	typedef struct
435	{	480	{
436	WL head;	481	WL head;
437	unsigned char events;	482	unsigned char events;
438	unsigned char reify;	483	unsigned char reify;
		484	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
		485	unsigned char unused;
		486	#if EV_USE_EPOLL
		487	unsigned int egen; /* generation counter to counter epoll bugs */
		488	#endif
439	#if EV_SELECT_IS_WINSOCKET	489	#if EV_SELECT_IS_WINSOCKET
440	SOCKET handle;	490	SOCKET handle;
441	#endif	491	#endif
442	} ANFD;	492	} ANFD;
443		493
…		…
556	struct timeval tv;	606	struct timeval tv;
557		607
558	tv.tv_sec = (time_t)delay;	608	tv.tv_sec = (time_t)delay;
559	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	609	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
560		610
		611	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		612	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		613	/* by older ones */
561	select (0, 0, 0, 0, &tv);	614	select (0, 0, 0, 0, &tv);
562	#endif	615	#endif
563	}	616	}
564	}	617	}
565		618
…		…
592	array_realloc (int elem, void base, int cur, int cnt)	645	array_realloc (int elem, void base, int cur, int cnt)
593	{	646	{
594	cur = array_nextsize (elem, cur, cnt);	647	cur = array_nextsize (elem, cur, cnt);
595	return ev_realloc (base, elem * *cur);	648	return ev_realloc (base, elem * *cur);
596	}	649	}
		650
		651	#define array_init_zero(base,count) \
		652	memset ((void )(base), 0, sizeof ((base)) * (count))
597		653
598	#define array_needsize(type,base,cur,cnt,init) \	654	#define array_needsize(type,base,cur,cnt,init) \
599	if (expect_false ((cnt) > (cur))) \	655	if (expect_false ((cnt) > (cur))) \
600	{ \	656	{ \
601	int ocur_ = (cur); \	657	int ocur_ = (cur); \
…		…
645	ev_feed_event (EV_A_ events [i], type);	701	ev_feed_event (EV_A_ events [i], type);
646	}	702	}
647		703
648	/*****************************************************************************/	704	/*****************************************************************************/
649		705
650	void inline_size
651	anfds_init (ANFD *base, int count)
652	{
653	while (count--)
654	{
655	base->head = 0;
656	base->events = EV_NONE;
657	base->reify = 0;
658
659	++base;
660	}
661	}
662
663	void inline_speed	706	void inline_speed
664	fd_event (EV_P_ int fd, int revents)	707	fd_event (EV_P_ int fd, int revents)
665	{	708	{
666	ANFD *anfd = anfds + fd;	709	ANFD *anfd = anfds + fd;
667	ev_io *w;	710	ev_io *w;
…		…
699	events \|= (unsigned char)w->events;	742	events \|= (unsigned char)w->events;
700		743
701	#if EV_SELECT_IS_WINSOCKET	744	#if EV_SELECT_IS_WINSOCKET
702	if (events)	745	if (events)
703	{	746	{
704	unsigned long argp;	747	unsigned long arg;
705	#ifdef EV_FD_TO_WIN32_HANDLE	748	#ifdef EV_FD_TO_WIN32_HANDLE
706	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	749	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
707	#else	750	#else
708	anfd->handle = _get_osfhandle (fd);	751	anfd->handle = _get_osfhandle (fd);
709	#endif	752	#endif
710	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	753	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
711	}	754	}
712	#endif	755	#endif
713		756
714	{	757	{
715	unsigned char o_events = anfd->events;	758	unsigned char o_events = anfd->events;
…		…
768	{	811	{
769	int fd;	812	int fd;
770		813
771	for (fd = 0; fd < anfdmax; ++fd)	814	for (fd = 0; fd < anfdmax; ++fd)
772	if (anfds [fd].events)	815	if (anfds [fd].events)
773	if (!fd_valid (fd) == -1 && errno == EBADF)	816	if (!fd_valid (fd) && errno == EBADF)
774	fd_kill (EV_A_ fd);	817	fd_kill (EV_A_ fd);
775	}	818	}
776		819
777	/* called on ENOMEM in select/poll to kill some fds and retry */	820	/* called on ENOMEM in select/poll to kill some fds and retry */
778	static void noinline	821	static void noinline
…		…
796		839
797	for (fd = 0; fd < anfdmax; ++fd)	840	for (fd = 0; fd < anfdmax; ++fd)
798	if (anfds [fd].events)	841	if (anfds [fd].events)
799	{	842	{
800	anfds [fd].events = 0;	843	anfds [fd].events = 0;
		844	anfds [fd].emask = 0;
801	fd_change (EV_A_ fd, EV_IOFDSET \| 1);	845	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
802	}	846	}
803	}	847	}
804		848
805	/*****************************************************************************/	849	/*****************************************************************************/
…		…
957	static ANSIG *signals;	1001	static ANSIG *signals;
958	static int signalmax;	1002	static int signalmax;
959		1003
960	static EV_ATOMIC_T gotsig;	1004	static EV_ATOMIC_T gotsig;
961		1005
962	void inline_size
963	signals_init (ANSIG *base, int count)
964	{
965	while (count--)
966	{
967	base->head = 0;
968	base->gotsig = 0;
969
970	++base;
971	}
972	}
973
974	/*****************************************************************************/	1006	/*****************************************************************************/
975		1007
976	void inline_speed	1008	void inline_speed
977	fd_intern (int fd)	1009	fd_intern (int fd)
978	{	1010	{
979	#ifdef _WIN32	1011	#ifdef _WIN32
980	int arg = 1;	1012	unsigned long arg = 1;
981	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	1013	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
982	#else	1014	#else
983	fcntl (fd, F_SETFD, FD_CLOEXEC);	1015	fcntl (fd, F_SETFD, FD_CLOEXEC);
984	fcntl (fd, F_SETFL, O_NONBLOCK);	1016	fcntl (fd, F_SETFL, O_NONBLOCK);
985	#endif	1017	#endif
…		…
999	}	1031	}
1000	else	1032	else
1001	#endif	1033	#endif
1002	{	1034	{
1003	while (pipe (evpipe))	1035	while (pipe (evpipe))
1004	syserr ("(libev) error creating signal/async pipe");	1036	ev_syserr ("(libev) error creating signal/async pipe");
1005		1037
1006	fd_intern (evpipe [0]);	1038	fd_intern (evpipe [0]);
1007	fd_intern (evpipe [1]);	1039	fd_intern (evpipe [1]);
1008	ev_io_set (&pipeev, evpipe [0], EV_READ);	1040	ev_io_set (&pipeev, evpipe [0], EV_READ);
1009	}	1041	}
…		…
1499	{	1531	{
1500	postfork = 1; /* must be in line with ev_default_fork */	1532	postfork = 1; /* must be in line with ev_default_fork */
1501	}	1533	}
1502		1534
1503	#if EV_VERIFY	1535	#if EV_VERIFY
1504	void noinline	1536	static void noinline
1505	verify_watcher (EV_P_ W w)	1537	verify_watcher (EV_P_ W w)
1506	{	1538	{
1507	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	1539	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1508		1540
1509	if (w->pending)	1541	if (w->pending)
…		…
1568		1600
1569	for (i = NUMPRI; i--; )	1601	for (i = NUMPRI; i--; )
1570	{	1602	{
1571	assert (pendingmax [i] >= pendingcnt [i]);	1603	assert (pendingmax [i] >= pendingcnt [i]);
1572	#if EV_IDLE_ENABLE	1604	#if EV_IDLE_ENABLE
		1605	assert (idleall >= 0);
1573	assert (idlemax [i] >= idlecnt [i]);	1606	assert (idlemax [i] >= idlecnt [i]);
1574	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);	1607	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1575	#endif	1608	#endif
1576	}	1609	}
1577		1610
…		…
1639	{	1672	{
1640	#if EV_MULTIPLICITY	1673	#if EV_MULTIPLICITY
1641	struct ev_loop *loop = ev_default_loop_ptr;	1674	struct ev_loop *loop = ev_default_loop_ptr;
1642	#endif	1675	#endif
1643		1676
		1677	ev_default_loop_ptr = 0;
		1678
1644	#ifndef _WIN32	1679	#ifndef _WIN32
1645	ev_ref (EV_A); /* child watcher */	1680	ev_ref (EV_A); /* child watcher */
1646	ev_signal_stop (EV_A_ &childev);	1681	ev_signal_stop (EV_A_ &childev);
1647	#endif	1682	#endif
1648		1683
…		…
1654	{	1689	{
1655	#if EV_MULTIPLICITY	1690	#if EV_MULTIPLICITY
1656	struct ev_loop *loop = ev_default_loop_ptr;	1691	struct ev_loop *loop = ev_default_loop_ptr;
1657	#endif	1692	#endif
1658		1693
1659	if (backend)
1660	postfork = 1; /* must be in line with ev_loop_fork */	1694	postfork = 1; /* must be in line with ev_loop_fork */
1661	}	1695	}
1662		1696
1663	/*****************************************************************************/	1697	/*****************************************************************************/
1664		1698
1665	void	1699	void
…		…
1896	ev_unref (EV_P)	1930	ev_unref (EV_P)
1897	{	1931	{
1898	--activecnt;	1932	--activecnt;
1899	}	1933	}
1900		1934
		1935	void
		1936	ev_now_update (EV_P)
		1937	{
		1938	time_update (EV_A_ 1e100);
		1939	}
		1940
1901	static int loop_done;	1941	static int loop_done;
1902		1942
1903	void	1943	void
1904	ev_loop (EV_P_ int flags)	1944	ev_loop (EV_P_ int flags)
1905	{	1945	{
…		…
2114		2154
2115	if (expect_false (ev_is_active (w)))	2155	if (expect_false (ev_is_active (w)))
2116	return;	2156	return;
2117		2157
2118	assert (("ev_io_start called with negative fd", fd >= 0));	2158	assert (("ev_io_start called with negative fd", fd >= 0));
		2159	assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET \| EV_READ \| EV_WRITE))));
2119		2160
2120	EV_FREQUENT_CHECK;	2161	EV_FREQUENT_CHECK;
2121		2162
2122	ev_start (EV_A_ (W)w, 1);	2163	ev_start (EV_A_ (W)w, 1);
2123	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2164	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2124	wlist_add (&anfds[fd].head, (WL)w);	2165	wlist_add (&anfds[fd].head, (WL)w);
2125		2166
2126	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);	2167	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
2127	w->events &= ~EV_IOFDSET;	2168	w->events &= ~EV_IOFDSET;
2128		2169
…		…
2320	sigset_t full, prev;	2361	sigset_t full, prev;
2321	sigfillset (&full);	2362	sigfillset (&full);
2322	sigprocmask (SIG_SETMASK, &full, &prev);	2363	sigprocmask (SIG_SETMASK, &full, &prev);
2323	#endif	2364	#endif
2324		2365
2325	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	2366	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);
2326		2367
2327	#ifndef _WIN32	2368	#ifndef _WIN32
2328	sigprocmask (SIG_SETMASK, &prev, 0);	2369	sigprocmask (SIG_SETMASK, &prev, 0);
2329	#endif	2370	#endif
2330	}	2371	}
…		…
2403	# ifdef _WIN32	2444	# ifdef _WIN32
2404	# undef lstat	2445	# undef lstat
2405	# define lstat(a,b) _stati64 (a,b)	2446	# define lstat(a,b) _stati64 (a,b)
2406	# endif	2447	# endif
2407		2448
2408	#define DEF_STAT_INTERVAL 5.0074891	2449	#define DEF_STAT_INTERVAL 5.0074891
		2450	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2409	#define MIN_STAT_INTERVAL 0.1074891	2451	#define MIN_STAT_INTERVAL 0.1074891
2410		2452
2411	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2453	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2412		2454
2413	#if EV_USE_INOTIFY	2455	#if EV_USE_INOTIFY
2414	# define EV_INOTIFY_BUFSIZE 8192	2456	# define EV_INOTIFY_BUFSIZE 8192
…		…
2418	{	2460	{
2419	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);	2461	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);
2420		2462
2421	if (w->wd < 0)	2463	if (w->wd < 0)
2422	{	2464	{
		2465	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2423	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2466	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2424		2467
2425	/* monitor some parent directory for speedup hints */	2468	/* monitor some parent directory for speedup hints */
2426	/* note that exceeding the hardcoded limit is not a correctness issue, */	2469	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2427	/* but an efficiency issue only */	2470	/* but an efficiency issue only */
2428	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2471	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2429	{	2472	{
2430	char path [4096];	2473	char path [4096];
2431	strcpy (path, w->path);	2474	strcpy (path, w->path);
…		…
2445	}	2488	}
2446	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2489	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2447	}	2490	}
2448	}	2491	}
2449	else	2492	else
2450	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */	2493	{
2451
2452	if (w->wd >= 0)
2453	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2494	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2495
		2496	/* now local changes will be tracked by inotify, but remote changes won't */
		2497	/* unless the filesystem it known to be local, we therefore still poll */
		2498	/* also do poll on <2.6.25, but with normal frequency */
		2499	struct statfs sfs;
		2500
		2501	if (fs_2625 && !statfs (w->path, &sfs))
		2502	if (sfs.f_type == 0x1373 /* devfs */
		2503	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2504	\|\| sfs.f_type == 0x3153464a /* jfs */
		2505	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2506	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2507	\|\| sfs.f_type == 0x58465342 /* xfs */)
		2508	return;
		2509
		2510	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2511	ev_timer_again (EV_A_ &w->timer);
		2512	}
2454	}	2513	}
2455		2514
2456	static void noinline	2515	static void noinline
2457	infy_del (EV_P_ ev_stat *w)	2516	infy_del (EV_P_ ev_stat *w)
2458	{	2517	{
…		…
2472		2531
2473	static void noinline	2532	static void noinline
2474	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2533	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2475	{	2534	{
2476	if (slot < 0)	2535	if (slot < 0)
2477	/* overflow, need to check for all hahs slots */	2536	/* overflow, need to check for all hash slots */
2478	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	2537	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2479	infy_wd (EV_A_ slot, wd, ev);	2538	infy_wd (EV_A_ slot, wd, ev);
2480	else	2539	else
2481	{	2540	{
2482	WL w_;	2541	WL w_;
…		…
2511	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	2570	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2512	infy_wd (EV_A_ ev->wd, ev->wd, ev);	2571	infy_wd (EV_A_ ev->wd, ev->wd, ev);
2513	}	2572	}
2514		2573
2515	void inline_size	2574	void inline_size
		2575	check_2625 (EV_P)
		2576	{
		2577	/* kernels < 2.6.25 are borked
		2578	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
		2579	*/
		2580	struct utsname buf;
		2581	int major, minor, micro;
		2582
		2583	if (uname (&buf))
		2584	return;
		2585
		2586	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
		2587	return;
		2588
		2589	if (major < 2
		2590	\|\| (major == 2 && minor < 6)
		2591	\|\| (major == 2 && minor == 6 && micro < 25))
		2592	return;
		2593
		2594	fs_2625 = 1;
		2595	}
		2596
		2597	void inline_size
2516	infy_init (EV_P)	2598	infy_init (EV_P)
2517	{	2599	{
2518	if (fs_fd != -2)	2600	if (fs_fd != -2)
2519	return;	2601	return;
		2602
		2603	fs_fd = -1;
		2604
		2605	check_2625 (EV_A);
2520		2606
2521	fs_fd = inotify_init ();	2607	fs_fd = inotify_init ();
2522		2608
2523	if (fs_fd >= 0)	2609	if (fs_fd >= 0)
2524	{	2610	{
…		…
2552	w->wd = -1;	2638	w->wd = -1;
2553		2639
2554	if (fs_fd >= 0)	2640	if (fs_fd >= 0)
2555	infy_add (EV_A_ w); /* re-add, no matter what */	2641	infy_add (EV_A_ w); /* re-add, no matter what */
2556	else	2642	else
2557	ev_timer_start (EV_A_ &w->timer);	2643	ev_timer_again (EV_A_ &w->timer);
2558	}	2644	}
2559
2560	}	2645	}
2561	}	2646	}
2562		2647
		2648	#endif
		2649
		2650	#ifdef _WIN32
		2651	# define EV_LSTAT(p,b) _stati64 (p, b)
		2652	#else
		2653	# define EV_LSTAT(p,b) lstat (p, b)
2563	#endif	2654	#endif
2564		2655
2565	void	2656	void
2566	ev_stat_stat (EV_P_ ev_stat *w)	2657	ev_stat_stat (EV_P_ ev_stat *w)
2567	{	2658	{
…		…
2594	\|\| w->prev.st_atime != w->attr.st_atime	2685	\|\| w->prev.st_atime != w->attr.st_atime
2595	\|\| w->prev.st_mtime != w->attr.st_mtime	2686	\|\| w->prev.st_mtime != w->attr.st_mtime
2596	\|\| w->prev.st_ctime != w->attr.st_ctime	2687	\|\| w->prev.st_ctime != w->attr.st_ctime
2597	) {	2688	) {
2598	#if EV_USE_INOTIFY	2689	#if EV_USE_INOTIFY
		2690	if (fs_fd >= 0)
		2691	{
2599	infy_del (EV_A_ w);	2692	infy_del (EV_A_ w);
2600	infy_add (EV_A_ w);	2693	infy_add (EV_A_ w);
2601	ev_stat_stat (EV_A_ w); /* avoid race... */	2694	ev_stat_stat (EV_A_ w); /* avoid race... */
		2695	}
2602	#endif	2696	#endif
2603		2697
2604	ev_feed_event (EV_A_ w, EV_STAT);	2698	ev_feed_event (EV_A_ w, EV_STAT);
2605	}	2699	}
2606	}	2700	}
…		…
2609	ev_stat_start (EV_P_ ev_stat *w)	2703	ev_stat_start (EV_P_ ev_stat *w)
2610	{	2704	{
2611	if (expect_false (ev_is_active (w)))	2705	if (expect_false (ev_is_active (w)))
2612	return;	2706	return;
2613		2707
2614	/* since we use memcmp, we need to clear any padding data etc. */
2615	memset (&w->prev, 0, sizeof (ev_statdata));
2616	memset (&w->attr, 0, sizeof (ev_statdata));
2617
2618	ev_stat_stat (EV_A_ w);	2708	ev_stat_stat (EV_A_ w);
2619		2709
		2710	if (w->interval < MIN_STAT_INTERVAL && w->interval)
2620	if (w->interval < MIN_STAT_INTERVAL)	2711	w->interval = MIN_STAT_INTERVAL;
2621	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2622		2712
2623	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2713	ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2624	ev_set_priority (&w->timer, ev_priority (w));	2714	ev_set_priority (&w->timer, ev_priority (w));
2625		2715
2626	#if EV_USE_INOTIFY	2716	#if EV_USE_INOTIFY
2627	infy_init (EV_A);	2717	infy_init (EV_A);
2628		2718
2629	if (fs_fd >= 0)	2719	if (fs_fd >= 0)
2630	infy_add (EV_A_ w);	2720	infy_add (EV_A_ w);
2631	else	2721	else
2632	#endif	2722	#endif
2633	ev_timer_start (EV_A_ &w->timer);	2723	ev_timer_again (EV_A_ &w->timer);
2634		2724
2635	ev_start (EV_A_ (W)w, 1);	2725	ev_start (EV_A_ (W)w, 1);
2636		2726
2637	EV_FREQUENT_CHECK;	2727	EV_FREQUENT_CHECK;
2638	}	2728	}
…		…
2808	ev_loop (EV_A_ EVLOOP_NONBLOCK);	2898	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2809	}	2899	}
2810	}	2900	}
2811	}	2901	}
2812		2902
		2903	static void
		2904	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
		2905	{
		2906	ev_embed w = (ev_embed )(((char *)fork_w) - offsetof (ev_embed, fork));
		2907
		2908	{
		2909	struct ev_loop *loop = w->other;
		2910
		2911	ev_loop_fork (EV_A);
		2912	}
		2913	}
		2914
2813	#if 0	2915	#if 0
2814	static void	2916	static void
2815	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	2917	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2816	{	2918	{
2817	ev_idle_stop (EV_A_ idle);	2919	ev_idle_stop (EV_A_ idle);
…		…
2837		2939
2838	ev_prepare_init (&w->prepare, embed_prepare_cb);	2940	ev_prepare_init (&w->prepare, embed_prepare_cb);
2839	ev_set_priority (&w->prepare, EV_MINPRI);	2941	ev_set_priority (&w->prepare, EV_MINPRI);
2840	ev_prepare_start (EV_A_ &w->prepare);	2942	ev_prepare_start (EV_A_ &w->prepare);
2841		2943
		2944	ev_fork_init (&w->fork, embed_fork_cb);
		2945	ev_fork_start (EV_A_ &w->fork);
		2946
2842	/ev_idle_init (&w->idle, e,bed_idle_cb);/	2947	/ev_idle_init (&w->idle, e,bed_idle_cb);/
2843		2948
2844	ev_start (EV_A_ (W)w, 1);	2949	ev_start (EV_A_ (W)w, 1);
2845		2950
2846	EV_FREQUENT_CHECK;	2951	EV_FREQUENT_CHECK;
…		…
2853	if (expect_false (!ev_is_active (w)))	2958	if (expect_false (!ev_is_active (w)))
2854	return;	2959	return;
2855		2960
2856	EV_FREQUENT_CHECK;	2961	EV_FREQUENT_CHECK;
2857		2962
2858	ev_io_stop (EV_A_ &w->io);	2963	ev_io_stop (EV_A_ &w->io);
2859	ev_prepare_stop (EV_A_ &w->prepare);	2964	ev_prepare_stop (EV_A_ &w->prepare);
2860		2965	ev_fork_stop (EV_A_ &w->fork);
2861	ev_stop (EV_A_ (W)w);
2862		2966
2863	EV_FREQUENT_CHECK;	2967	EV_FREQUENT_CHECK;
2864	}	2968	}
2865	#endif	2969	#endif
2866		2970
…		…
2963	once_cb (EV_P_ struct ev_once *once, int revents)	3067	once_cb (EV_P_ struct ev_once *once, int revents)
2964	{	3068	{
2965	void (cb)(int revents, void arg) = once->cb;	3069	void (cb)(int revents, void arg) = once->cb;
2966	void *arg = once->arg;	3070	void *arg = once->arg;
2967		3071
2968	ev_io_stop (EV_A_ &once->io);	3072	ev_io_stop (EV_A_ &once->io);
2969	ev_timer_stop (EV_A_ &once->to);	3073	ev_timer_stop (EV_A_ &once->to);
2970	ev_free (once);	3074	ev_free (once);
2971		3075
2972	cb (revents, arg);	3076	cb (revents, arg);
2973	}	3077	}
2974		3078
2975	static void	3079	static void
2976	once_cb_io (EV_P_ ev_io *w, int revents)	3080	once_cb_io (EV_P_ ev_io *w, int revents)
2977	{	3081	{
2978	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	3082	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, io));
		3083
		3084	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->to));
2979	}	3085	}
2980		3086
2981	static void	3087	static void
2982	once_cb_to (EV_P_ ev_timer *w, int revents)	3088	once_cb_to (EV_P_ ev_timer *w, int revents)
2983	{	3089	{
2984	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	3090	struct ev_once once = (struct ev_once )(((char *)w) - offsetof (struct ev_once, to));
		3091
		3092	once_cb (EV_A_ once, revents \| ev_clear_pending (EV_A_ &once->io));
2985	}	3093	}
2986		3094
2987	void	3095	void
2988	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	3096	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
2989	{	3097	{

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Comparing libev/ev.c (file contents): Revision 1.251 by root, Thu May 22 03:42:34 2008 UTC vs. Revision 1.274 by root, Thu Nov 20 00:35:10 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.251 by root, Thu May 22 03:42:34 2008 UTC vs.
Revision 1.274 by root, Thu Nov 20 00:35:10 2008 UTC