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

Comparing libev/ev.c (file contents):
Revision 1.318 by root, Tue Nov 17 00:22:28 2009 UTC vs.
Revision 1.338 by root, Tue Mar 16 00:20:17 2010 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 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 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	*
110	# define EV_USE_EPOLL 0	110	# define EV_USE_EPOLL 0
111	# endif	111	# endif
112	# endif	112	# endif
113		113
114	# ifndef EV_USE_KQUEUE	114	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE 1
117	# else	117	# else
118	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
119	# endif	119	# endif
120	# endif	120	# endif
…		…
153		153
154	#endif	154	#endif
155		155
156	#include <math.h>	156	#include <math.h>
157	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
158	#include <fcntl.h>	159	#include <fcntl.h>
159	#include <stddef.h>	160	#include <stddef.h>
160		161
161	#include <stdio.h>	162	#include <stdio.h>
162		163
163	#include <assert.h>	164	#include <assert.h>
164	#include <errno.h>	165	#include <errno.h>
165	#include <sys/types.h>	166	#include <sys/types.h>
166	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
167		169
168	#include <signal.h>	170	#include <signal.h>
169		171
170	#ifdef EV_H	172	#ifdef EV_H
171	# include EV_H	173	# include EV_H
…		…
182	# define WIN32_LEAN_AND_MEAN	184	# define WIN32_LEAN_AND_MEAN
183	# include <windows.h>	185	# include <windows.h>
184	# ifndef EV_SELECT_IS_WINSOCKET	186	# ifndef EV_SELECT_IS_WINSOCKET
185	# define EV_SELECT_IS_WINSOCKET 1	187	# define EV_SELECT_IS_WINSOCKET 1
186	# endif	188	# endif
		189	# undef EV_AVOID_STDIO
187	#endif	190	#endif
188		191
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	192	/* this block tries to deduce configuration from header-defined symbols and defaults */
190		193
191	/* try to deduce the maximum number of signals on this platform */	194	/* try to deduce the maximum number of signals on this platform */
…		…
204	#elif defined (MAXSIG)	207	#elif defined (MAXSIG)
205	# define EV_NSIG (MAXSIG+1)	208	# define EV_NSIG (MAXSIG+1)
206	#elif defined (MAX_SIG)	209	#elif defined (MAX_SIG)
207	# define EV_NSIG (MAX_SIG+1)	210	# define EV_NSIG (MAX_SIG+1)
208	#elif defined (SIGARRAYSIZE)	211	#elif defined (SIGARRAYSIZE)
209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	212	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210	#elif defined (_sys_nsig)	213	#elif defined (_sys_nsig)
211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212	#else	215	#else
213	# error "unable to find value for NSIG, please report"	216	# error "unable to find value for NSIG, please report"
214	/* to make it compile regardless, just remove the above line */	217	/* to make it compile regardless, just remove the above line, */
		218	/* but consider reporting it, too! :) */
215	# define EV_NSIG 65	219	# define EV_NSIG 65
216	#endif	220	#endif
217		221
218	#ifndef EV_USE_CLOCK_SYSCALL	222	#ifndef EV_USE_CLOCK_SYSCALL
219	# if __linux && __GLIBC__ >= 2	223	# if __linux && __GLIBC__ >= 2
220	# define EV_USE_CLOCK_SYSCALL 1	224	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221	# else	225	# else
222	# define EV_USE_CLOCK_SYSCALL 0	226	# define EV_USE_CLOCK_SYSCALL 0
223	# endif	227	# endif
224	#endif	228	#endif
225		229
226	#ifndef EV_USE_MONOTONIC	230	#ifndef EV_USE_MONOTONIC
227	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	231	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228	# define EV_USE_MONOTONIC 1	232	# define EV_USE_MONOTONIC EV_FEATURE_OS
229	# else	233	# else
230	# define EV_USE_MONOTONIC 0	234	# define EV_USE_MONOTONIC 0
231	# endif	235	# endif
232	#endif	236	#endif
233		237
…		…
235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	239	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236	#endif	240	#endif
237		241
238	#ifndef EV_USE_NANOSLEEP	242	#ifndef EV_USE_NANOSLEEP
239	# if _POSIX_C_SOURCE >= 199309L	243	# if _POSIX_C_SOURCE >= 199309L
240	# define EV_USE_NANOSLEEP 1	244	# define EV_USE_NANOSLEEP EV_FEATURE_OS
241	# else	245	# else
242	# define EV_USE_NANOSLEEP 0	246	# define EV_USE_NANOSLEEP 0
243	# endif	247	# endif
244	#endif	248	#endif
245		249
246	#ifndef EV_USE_SELECT	250	#ifndef EV_USE_SELECT
247	# define EV_USE_SELECT 1	251	# define EV_USE_SELECT EV_FEATURE_BACKENDS
248	#endif	252	#endif
249		253
250	#ifndef EV_USE_POLL	254	#ifndef EV_USE_POLL
251	# ifdef _WIN32	255	# ifdef _WIN32
252	# define EV_USE_POLL 0	256	# define EV_USE_POLL 0
253	# else	257	# else
254	# define EV_USE_POLL 1	258	# define EV_USE_POLL EV_FEATURE_BACKENDS
255	# endif	259	# endif
256	#endif	260	#endif
257		261
258	#ifndef EV_USE_EPOLL	262	#ifndef EV_USE_EPOLL
259	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	263	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260	# define EV_USE_EPOLL 1	264	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261	# else	265	# else
262	# define EV_USE_EPOLL 0	266	# define EV_USE_EPOLL 0
263	# endif	267	# endif
264	#endif	268	#endif
265		269
…		…
271	# define EV_USE_PORT 0	275	# define EV_USE_PORT 0
272	#endif	276	#endif
273		277
274	#ifndef EV_USE_INOTIFY	278	#ifndef EV_USE_INOTIFY
275	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	279	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276	# define EV_USE_INOTIFY 1	280	# define EV_USE_INOTIFY EV_FEATURE_OS
277	# else	281	# else
278	# define EV_USE_INOTIFY 0	282	# define EV_USE_INOTIFY 0
279	# endif	283	# endif
280	#endif	284	#endif
281		285
282	#ifndef EV_PID_HASHSIZE	286	#ifndef EV_PID_HASHSIZE
283	# if EV_MINIMAL	287	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284	# define EV_PID_HASHSIZE 1
285	# else
286	# define EV_PID_HASHSIZE 16
287	# endif
288	#endif	288	#endif
289		289
290	#ifndef EV_INOTIFY_HASHSIZE	290	#ifndef EV_INOTIFY_HASHSIZE
291	# if EV_MINIMAL	291	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292	# define EV_INOTIFY_HASHSIZE 1
293	# else
294	# define EV_INOTIFY_HASHSIZE 16
295	# endif
296	#endif	292	#endif
297		293
298	#ifndef EV_USE_EVENTFD	294	#ifndef EV_USE_EVENTFD
299	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	295	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300	# define EV_USE_EVENTFD 1	296	# define EV_USE_EVENTFD EV_FEATURE_OS
301	# else	297	# else
302	# define EV_USE_EVENTFD 0	298	# define EV_USE_EVENTFD 0
303	# endif	299	# endif
304	#endif	300	#endif
305		301
306	#ifndef EV_USE_SIGNALFD	302	#ifndef EV_USE_SIGNALFD
307	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	303	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308	# define EV_USE_SIGNALFD 1	304	# define EV_USE_SIGNALFD EV_FEATURE_OS
309	# else	305	# else
310	# define EV_USE_SIGNALFD 0	306	# define EV_USE_SIGNALFD 0
311	# endif	307	# endif
312	#endif	308	#endif
313		309
…		…
316	# define EV_USE_4HEAP 1	312	# define EV_USE_4HEAP 1
317	# define EV_HEAP_CACHE_AT 1	313	# define EV_HEAP_CACHE_AT 1
318	#endif	314	#endif
319		315
320	#ifndef EV_VERIFY	316	#ifndef EV_VERIFY
321	# define EV_VERIFY !EV_MINIMAL	317	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322	#endif	318	#endif
323		319
324	#ifndef EV_USE_4HEAP	320	#ifndef EV_USE_4HEAP
325	# define EV_USE_4HEAP !EV_MINIMAL	321	# define EV_USE_4HEAP EV_FEATURE_DATA
326	#endif	322	#endif
327		323
328	#ifndef EV_HEAP_CACHE_AT	324	#ifndef EV_HEAP_CACHE_AT
329	# define EV_HEAP_CACHE_AT !EV_MINIMAL	325	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330	#endif	326	#endif
331		327
332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	328	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333	/* which makes programs even slower. might work on other unices, too. */	329	/* which makes programs even slower. might work on other unices, too. */
334	#if EV_USE_CLOCK_SYSCALL	330	#if EV_USE_CLOCK_SYSCALL
…		…
343	# endif	339	# endif
344	#endif	340	#endif
345		341
346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	342	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347		343
		344	#ifdef _AIX
		345	/* AIX has a completely broken poll.h header */
		346	# undef EV_USE_POLL
		347	# define EV_USE_POLL 0
		348	#endif
		349
348	#ifndef CLOCK_MONOTONIC	350	#ifndef CLOCK_MONOTONIC
349	# undef EV_USE_MONOTONIC	351	# undef EV_USE_MONOTONIC
350	# define EV_USE_MONOTONIC 0	352	# define EV_USE_MONOTONIC 0
351	#endif	353	#endif
352		354
…		…
395	# endif	397	# endif
396	# endif	398	# endif
397	# ifdef __cplusplus	399	# ifdef __cplusplus
398	extern "C" {	400	extern "C" {
399	# endif	401	# endif
400	int eventfd (unsigned int initval, int flags);	402	int (eventfd) (unsigned int initval, int flags);
401	# ifdef __cplusplus	403	# ifdef __cplusplus
402	}	404	}
403	# endif	405	# endif
404	#endif	406	#endif
405		407
…		…
466		468
467	#define expect_false(expr) expect ((expr) != 0, 0)	469	#define expect_false(expr) expect ((expr) != 0, 0)
468	#define expect_true(expr) expect ((expr) != 0, 1)	470	#define expect_true(expr) expect ((expr) != 0, 1)
469	#define inline_size static inline	471	#define inline_size static inline
470		472
471	#if EV_MINIMAL	473	#if EV_FEATURE_CODE
		474	# define inline_speed static inline
		475	#else
472	# define inline_speed static noinline	476	# define inline_speed static noinline
473	#else
474	# define inline_speed static inline
475	#endif	477	#endif
476		478
477	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	479	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
478		480
479	#if EV_MINPRI == EV_MAXPRI	481	#if EV_MINPRI == EV_MAXPRI
…		…
504		506
505	#ifndef EV_FD_TO_WIN32_HANDLE	507	#ifndef EV_FD_TO_WIN32_HANDLE
506	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)	508	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
507	#endif	509	#endif
508	#ifndef EV_WIN32_HANDLE_TO_FD	510	#ifndef EV_WIN32_HANDLE_TO_FD
509	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)	511	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
510	#endif	512	#endif
511	#ifndef EV_WIN32_CLOSE_FD	513	#ifndef EV_WIN32_CLOSE_FD
512	# define EV_WIN32_CLOSE_FD(fd) close (fd)	514	# define EV_WIN32_CLOSE_FD(fd) close (fd)
513	#endif	515	#endif
514		516
515	#ifdef _WIN32	517	#ifdef _WIN32
516	# include "ev_win32.c"	518	# include "ev_win32.c"
517	#endif	519	#endif
518		520
519	/*****************************************************************************/	521	/*****************************************************************************/
		522
		523	#if EV_AVOID_STDIO
		524	static void noinline
		525	ev_printerr (const char *msg)
		526	{
		527	write (STDERR_FILENO, msg, strlen (msg));
		528	}
		529	#endif
520		530
521	static void (syserr_cb)(const char msg);	531	static void (syserr_cb)(const char msg);
522		532
523	void	533	void
524	ev_set_syserr_cb (void (cb)(const char msg))	534	ev_set_syserr_cb (void (cb)(const char msg))
…		…
534		544
535	if (syserr_cb)	545	if (syserr_cb)
536	syserr_cb (msg);	546	syserr_cb (msg);
537	else	547	else
538	{	548	{
		549	#if EV_AVOID_STDIO
		550	const char *err = strerror (errno);
		551
		552	ev_printerr (msg);
		553	ev_printerr (": ");
		554	ev_printerr (err);
		555	ev_printerr ("\n");
		556	#else
539	perror (msg);	557	perror (msg);
		558	#endif
540	abort ();	559	abort ();
541	}	560	}
542	}	561	}
543		562
544	static void *	563	static void *
545	ev_realloc_emul (void *ptr, long size)	564	ev_realloc_emul (void *ptr, long size)
546	{	565	{
		566	#if __GLIBC__
		567	return realloc (ptr, size);
		568	#else
547	/* some systems, notably openbsd and darwin, fail to properly	569	/* some systems, notably openbsd and darwin, fail to properly
548	* implement realloc (x, 0) (as required by both ansi c-98 and	570	* implement realloc (x, 0) (as required by both ansi c-89 and
549	* the single unix specification, so work around them here.	571	* the single unix specification, so work around them here.
550	*/	572	*/
551		573
552	if (size)	574	if (size)
553	return realloc (ptr, size);	575	return realloc (ptr, size);
554		576
555	free (ptr);	577	free (ptr);
556	return 0;	578	return 0;
		579	#endif
557	}	580	}
558		581
559	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	582	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
560		583
561	void	584	void
…		…
569	{	592	{
570	ptr = alloc (ptr, size);	593	ptr = alloc (ptr, size);
571		594
572	if (!ptr && size)	595	if (!ptr && size)
573	{	596	{
		597	#if EV_AVOID_STDIO
		598	ev_printerr ("libev: memory allocation failed, aborting.\n");
		599	#else
574	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	600	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		601	#endif
575	abort ();	602	abort ();
576	}	603	}
577		604
578	return ptr;	605	return ptr;
579	}	606	}
…		…
661		688
662	static int ev_default_loop_ptr;	689	static int ev_default_loop_ptr;
663		690
664	#endif	691	#endif
665		692
666	#if EV_MINIMAL < 2	693	#if EV_FEATURE_API
667	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	694	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
668	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	695	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
669	# define EV_INVOKE_PENDING invoke_cb (EV_A)	696	# define EV_INVOKE_PENDING invoke_cb (EV_A)
670	#else	697	#else
671	# define EV_RELEASE_CB (void)0	698	# define EV_RELEASE_CB (void)0
…		…
856	}	883	}
857		884
858	/*****************************************************************************/	885	/*****************************************************************************/
859		886
860	inline_speed void	887	inline_speed void
861	fd_event_nc (EV_P_ int fd, int revents)	888	fd_event_nocheck (EV_P_ int fd, int revents)
862	{	889	{
863	ANFD *anfd = anfds + fd;	890	ANFD *anfd = anfds + fd;
864	ev_io *w;	891	ev_io *w;
865		892
866	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	893	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
878	fd_event (EV_P_ int fd, int revents)	905	fd_event (EV_P_ int fd, int revents)
879	{	906	{
880	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
881		908
882	if (expect_true (!anfd->reify))	909	if (expect_true (!anfd->reify))
883	fd_event_nc (EV_A_ fd, revents);	910	fd_event_nocheck (EV_A_ fd, revents);
884	}	911	}
885		912
886	void	913	void
887	ev_feed_fd_event (EV_P_ int fd, int revents)	914	ev_feed_fd_event (EV_P_ int fd, int revents)
888	{	915	{
889	if (fd >= 0 && fd < anfdmax)	916	if (fd >= 0 && fd < anfdmax)
890	fd_event_nc (EV_A_ fd, revents);	917	fd_event_nocheck (EV_A_ fd, revents);
891	}	918	}
892		919
893	/* make sure the external fd watch events are in-sync */	920	/* make sure the external fd watch events are in-sync */
894	/* with the kernel/libev internal state */	921	/* with the kernel/libev internal state */
895	inline_size void	922	inline_size void
…		…
958	ev_io_stop (EV_A_ w);	985	ev_io_stop (EV_A_ w);
959	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	986	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
960	}	987	}
961	}	988	}
962		989
963	/* check whether the given fd is atcually valid, for error recovery */	990	/* check whether the given fd is actually valid, for error recovery */
964	inline_size int	991	inline_size int
965	fd_valid (int fd)	992	fd_valid (int fd)
966	{	993	{
967	#ifdef _WIN32	994	#ifdef _WIN32
968	return _get_osfhandle (fd) != -1;	995	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
969	#else	996	#else
970	return fcntl (fd, F_GETFD) != -1;	997	return fcntl (fd, F_GETFD) != -1;
971	#endif	998	#endif
972	}	999	}
973		1000
…		…
1008	{	1035	{
1009	anfds [fd].events = 0;	1036	anfds [fd].events = 0;
1010	anfds [fd].emask = 0;	1037	anfds [fd].emask = 0;
1011	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1038	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
1012	}	1039	}
		1040	}
		1041
		1042	/* used to prepare libev internal fd's */
		1043	/* this is not fork-safe */
		1044	inline_speed void
		1045	fd_intern (int fd)
		1046	{
		1047	#ifdef _WIN32
		1048	unsigned long arg = 1;
		1049	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1050	#else
		1051	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1052	fcntl (fd, F_SETFL, O_NONBLOCK);
		1053	#endif
1013	}	1054	}
1014		1055
1015	/*****************************************************************************/	1056	/*****************************************************************************/
1016		1057
1017	/*	1058	/*
…		…
1171		1212
1172	static ANSIG signals [EV_NSIG - 1];	1213	static ANSIG signals [EV_NSIG - 1];
1173		1214
1174	/*****************************************************************************/	1215	/*****************************************************************************/
1175		1216
1176	/* used to prepare libev internal fd's */	1217	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1177	/* this is not fork-safe */
1178	inline_speed void
1179	fd_intern (int fd)
1180	{
1181	#ifdef _WIN32
1182	unsigned long arg = 1;
1183	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1184	#else
1185	fcntl (fd, F_SETFD, FD_CLOEXEC);
1186	fcntl (fd, F_SETFL, O_NONBLOCK);
1187	#endif
1188	}
1189		1218
1190	static void noinline	1219	static void noinline
1191	evpipe_init (EV_P)	1220	evpipe_init (EV_P)
1192	{	1221	{
1193	if (!ev_is_active (&pipe_w))	1222	if (!ev_is_active (&pipe_w))
1194	{	1223	{
1195	#if EV_USE_EVENTFD	1224	# if EV_USE_EVENTFD
1196	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	1225	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1197	if (evfd < 0 && errno == EINVAL)	1226	if (evfd < 0 && errno == EINVAL)
1198	evfd = eventfd (0, 0);	1227	evfd = eventfd (0, 0);
1199		1228
1200	if (evfd >= 0)	1229	if (evfd >= 0)
…		…
1202	evpipe [0] = -1;	1231	evpipe [0] = -1;
1203	fd_intern (evfd); /* doing it twice doesn't hurt */	1232	fd_intern (evfd); /* doing it twice doesn't hurt */
1204	ev_io_set (&pipe_w, evfd, EV_READ);	1233	ev_io_set (&pipe_w, evfd, EV_READ);
1205	}	1234	}
1206	else	1235	else
1207	#endif	1236	# endif
1208	{	1237	{
1209	while (pipe (evpipe))	1238	while (pipe (evpipe))
1210	ev_syserr ("(libev) error creating signal/async pipe");	1239	ev_syserr ("(libev) error creating signal/async pipe");
1211		1240
1212	fd_intern (evpipe [0]);	1241	fd_intern (evpipe [0]);
…		…
1223	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1252	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1224	{	1253	{
1225	if (!*flag)	1254	if (!*flag)
1226	{	1255	{
1227	int old_errno = errno; /* save errno because write might clobber it */	1256	int old_errno = errno; /* save errno because write might clobber it */
		1257	char dummy;
1228		1258
1229	*flag = 1;	1259	*flag = 1;
1230		1260
1231	#if EV_USE_EVENTFD	1261	#if EV_USE_EVENTFD
1232	if (evfd >= 0)	1262	if (evfd >= 0)
…		…
1234	uint64_t counter = 1;	1264	uint64_t counter = 1;
1235	write (evfd, &counter, sizeof (uint64_t));	1265	write (evfd, &counter, sizeof (uint64_t));
1236	}	1266	}
1237	else	1267	else
1238	#endif	1268	#endif
1239	write (evpipe [1], &old_errno, 1);	1269	write (evpipe [1], &dummy, 1);
1240		1270
1241	errno = old_errno;	1271	errno = old_errno;
1242	}	1272	}
1243	}	1273	}
1244		1274
…		…
1293	{	1323	{
1294	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1295	EV_P = signals [signum - 1].loop;	1325	EV_P = signals [signum - 1].loop;
1296	#endif	1326	#endif
1297		1327
1298	#if _WIN32	1328	#ifdef _WIN32
1299	signal (signum, ev_sighandler);	1329	signal (signum, ev_sighandler);
1300	#endif	1330	#endif
1301		1331
1302	signals [signum - 1].pending = 1;	1332	signals [signum - 1].pending = 1;
1303	evpipe_write (EV_A_ &sig_pending);	1333	evpipe_write (EV_A_ &sig_pending);
…		…
1345	break;	1375	break;
1346	}	1376	}
1347	}	1377	}
1348	#endif	1378	#endif
1349		1379
		1380	#endif
		1381
1350	/*****************************************************************************/	1382	/*****************************************************************************/
1351		1383
		1384	#if EV_CHILD_ENABLE
1352	static WL childs [EV_PID_HASHSIZE];	1385	static WL childs [EV_PID_HASHSIZE];
1353
1354	#ifndef _WIN32
1355		1386
1356	static ev_signal childev;	1387	static ev_signal childev;
1357		1388
1358	#ifndef WIFCONTINUED	1389	#ifndef WIFCONTINUED
1359	# define WIFCONTINUED(status) 0	1390	# define WIFCONTINUED(status) 0
…		…
1364	child_reap (EV_P_ int chain, int pid, int status)	1395	child_reap (EV_P_ int chain, int pid, int status)
1365	{	1396	{
1366	ev_child *w;	1397	ev_child *w;
1367	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1398	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1368		1399
1369	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1400	for (w = (ev_child )childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child )((WL)w)->next)
1370	{	1401	{
1371	if ((w->pid == pid \|\| !w->pid)	1402	if ((w->pid == pid \|\| !w->pid)
1372	&& (!traced \|\| (w->flags & 1)))	1403	&& (!traced \|\| (w->flags & 1)))
1373	{	1404	{
1374	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */	1405	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
…		…
1399	/* make sure we are called again until all children have been reaped */	1430	/* make sure we are called again until all children have been reaped */
1400	/* we need to do it this way so that the callback gets called before we continue */	1431	/* we need to do it this way so that the callback gets called before we continue */
1401	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1432	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1402		1433
1403	child_reap (EV_A_ pid, pid, status);	1434	child_reap (EV_A_ pid, pid, status);
1404	if (EV_PID_HASHSIZE > 1)	1435	if ((EV_PID_HASHSIZE) > 1)
1405	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1436	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1406	}	1437	}
1407		1438
1408	#endif	1439	#endif
1409		1440
…		…
1498	ev_backend (EV_P)	1529	ev_backend (EV_P)
1499	{	1530	{
1500	return backend;	1531	return backend;
1501	}	1532	}
1502		1533
1503	#if EV_MINIMAL < 2	1534	#if EV_FEATURE_API
1504	unsigned int	1535	unsigned int
1505	ev_loop_count (EV_P)	1536	ev_loop_count (EV_P)
1506	{	1537	{
1507	return loop_count;	1538	return loop_count;
1508	}	1539	}
…		…
1588		1619
1589	ev_rt_now = ev_time ();	1620	ev_rt_now = ev_time ();
1590	mn_now = get_clock ();	1621	mn_now = get_clock ();
1591	now_floor = mn_now;	1622	now_floor = mn_now;
1592	rtmn_diff = ev_rt_now - mn_now;	1623	rtmn_diff = ev_rt_now - mn_now;
1593	#if EV_MINIMAL < 2	1624	#if EV_FEATURE_API
1594	invoke_cb = ev_invoke_pending;	1625	invoke_cb = ev_invoke_pending;
1595	#endif	1626	#endif
1596		1627
1597	io_blocktime = 0.;	1628	io_blocktime = 0.;
1598	timeout_blocktime = 0.;	1629	timeout_blocktime = 0.;
…		…
1604	#endif	1635	#endif
1605	#if EV_USE_INOTIFY	1636	#if EV_USE_INOTIFY
1606	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1637	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1607	#endif	1638	#endif
1608	#if EV_USE_SIGNALFD	1639	#if EV_USE_SIGNALFD
1609	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1640	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1610	#endif	1641	#endif
1611		1642
1612	if (!(flags & 0x0000ffffU))	1643	if (!(flags & 0x0000ffffU))
1613	flags \|= ev_recommended_backends ();	1644	flags \|= ev_recommended_backends ();
1614		1645
…		…
1628	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1659	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1629	#endif	1660	#endif
1630		1661
1631	ev_prepare_init (&pending_w, pendingcb);	1662	ev_prepare_init (&pending_w, pendingcb);
1632		1663
		1664	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1633	ev_init (&pipe_w, pipecb);	1665	ev_init (&pipe_w, pipecb);
1634	ev_set_priority (&pipe_w, EV_MAXPRI);	1666	ev_set_priority (&pipe_w, EV_MAXPRI);
		1667	#endif
1635	}	1668	}
1636	}	1669	}
1637		1670
1638	/* free up a loop structure */	1671	/* free up a loop structure */
1639	static void noinline	1672	static void noinline
…		…
1757	{	1790	{
1758	EV_WIN32_CLOSE_FD (evpipe [0]);	1791	EV_WIN32_CLOSE_FD (evpipe [0]);
1759	EV_WIN32_CLOSE_FD (evpipe [1]);	1792	EV_WIN32_CLOSE_FD (evpipe [1]);
1760	}	1793	}
1761		1794
		1795	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1762	evpipe_init (EV_A);	1796	evpipe_init (EV_A);
1763	/* now iterate over everything, in case we missed something */	1797	/* now iterate over everything, in case we missed something */
1764	pipecb (EV_A_ &pipe_w, EV_READ);	1798	pipecb (EV_A_ &pipe_w, EV_READ);
		1799	#endif
1765	}	1800	}
1766		1801
1767	postfork = 0;	1802	postfork = 0;
1768	}	1803	}
1769		1804
…		…
1831	verify_watcher (EV_A_ ws [cnt]);	1866	verify_watcher (EV_A_ ws [cnt]);
1832	}	1867	}
1833	}	1868	}
1834	#endif	1869	#endif
1835		1870
1836	#if EV_MINIMAL < 2	1871	#if EV_FEATURE_API
1837	void	1872	void
1838	ev_loop_verify (EV_P)	1873	ev_loop_verify (EV_P)
1839	{	1874	{
1840	#if EV_VERIFY	1875	#if EV_VERIFY
1841	int i;	1876	int i;
…		…
1882	#if EV_ASYNC_ENABLE	1917	#if EV_ASYNC_ENABLE
1883	assert (asyncmax >= asynccnt);	1918	assert (asyncmax >= asynccnt);
1884	array_verify (EV_A_ (W *)asyncs, asynccnt);	1919	array_verify (EV_A_ (W *)asyncs, asynccnt);
1885	#endif	1920	#endif
1886		1921
		1922	#if EV_PREPARE_ENABLE
1887	assert (preparemax >= preparecnt);	1923	assert (preparemax >= preparecnt);
1888	array_verify (EV_A_ (W *)prepares, preparecnt);	1924	array_verify (EV_A_ (W *)prepares, preparecnt);
		1925	#endif
1889		1926
		1927	#if EV_CHECK_ENABLE
1890	assert (checkmax >= checkcnt);	1928	assert (checkmax >= checkcnt);
1891	array_verify (EV_A_ (W *)checks, checkcnt);	1929	array_verify (EV_A_ (W *)checks, checkcnt);
		1930	#endif
1892		1931
1893	# if 0	1932	# if 0
		1933	#if EV_CHILD_ENABLE
1894	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1934	for (w = (ev_child )childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child )((WL)w)->next)
1895	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1935	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1936	#endif
1896	# endif	1937	# endif
1897	#endif	1938	#endif
1898	}	1939	}
1899	#endif	1940	#endif
1900		1941
…		…
1916		1957
1917	loop_init (EV_A_ flags);	1958	loop_init (EV_A_ flags);
1918		1959
1919	if (ev_backend (EV_A))	1960	if (ev_backend (EV_A))
1920	{	1961	{
1921	#ifndef _WIN32	1962	#if EV_CHILD_ENABLE
1922	ev_signal_init (&childev, childcb, SIGCHLD);	1963	ev_signal_init (&childev, childcb, SIGCHLD);
1923	ev_set_priority (&childev, EV_MAXPRI);	1964	ev_set_priority (&childev, EV_MAXPRI);
1924	ev_signal_start (EV_A_ &childev);	1965	ev_signal_start (EV_A_ &childev);
1925	ev_unref (EV_A); /* child watcher should not keep loop alive */	1966	ev_unref (EV_A); /* child watcher should not keep loop alive */
1926	#endif	1967	#endif
…		…
1939	EV_P = ev_default_loop_ptr;	1980	EV_P = ev_default_loop_ptr;
1940	#endif	1981	#endif
1941		1982
1942	ev_default_loop_ptr = 0;	1983	ev_default_loop_ptr = 0;
1943		1984
1944	#ifndef _WIN32	1985	#if EV_CHILD_ENABLE
1945	ev_ref (EV_A); /* child watcher */	1986	ev_ref (EV_A); /* child watcher */
1946	ev_signal_stop (EV_A_ &childev);	1987	ev_signal_stop (EV_A_ &childev);
1947	#endif	1988	#endif
1948		1989
1949	loop_destroy (EV_A);	1990	loop_destroy (EV_A);
…		…
2156	ANHE_at_cache (*he);	2197	ANHE_at_cache (*he);
2157	}	2198	}
2158	}	2199	}
2159		2200
2160	/* fetch new monotonic and realtime times from the kernel */	2201	/* fetch new monotonic and realtime times from the kernel */
2161	/* also detetc if there was a timejump, and act accordingly */	2202	/* also detect if there was a timejump, and act accordingly */
2162	inline_speed void	2203	inline_speed void
2163	time_update (EV_P_ ev_tstamp max_block)	2204	time_update (EV_P_ ev_tstamp max_block)
2164	{	2205	{
2165	#if EV_USE_MONOTONIC	2206	#if EV_USE_MONOTONIC
2166	if (expect_true (have_monotonic))	2207	if (expect_true (have_monotonic))
…		…
2226	}	2267	}
2227		2268
2228	void	2269	void
2229	ev_loop (EV_P_ int flags)	2270	ev_loop (EV_P_ int flags)
2230	{	2271	{
2231	#if EV_MINIMAL < 2	2272	#if EV_FEATURE_API
2232	++loop_depth;	2273	++loop_depth;
2233	#endif	2274	#endif
2234		2275
2235	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2276	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2236		2277
…		…
2261	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2302	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2262	EV_INVOKE_PENDING;	2303	EV_INVOKE_PENDING;
2263	}	2304	}
2264	#endif	2305	#endif
2265		2306
		2307	#if EV_PREPARE_ENABLE
2266	/* queue prepare watchers (and execute them) */	2308	/* queue prepare watchers (and execute them) */
2267	if (expect_false (preparecnt))	2309	if (expect_false (preparecnt))
2268	{	2310	{
2269	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2311	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2270	EV_INVOKE_PENDING;	2312	EV_INVOKE_PENDING;
2271	}	2313	}
		2314	#endif
2272		2315
2273	if (expect_false (loop_done))	2316	if (expect_false (loop_done))
2274	break;	2317	break;
2275		2318
2276	/* we might have forked, so reify kernel state if necessary */	2319	/* we might have forked, so reify kernel state if necessary */
…		…
2327	waittime -= sleeptime;	2370	waittime -= sleeptime;
2328	}	2371	}
2329	}	2372	}
2330	}	2373	}
2331		2374
2332	#if EV_MINIMAL < 2	2375	#if EV_FEATURE_API
2333	++loop_count;	2376	++loop_count;
2334	#endif	2377	#endif
2335	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2378	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2336	backend_poll (EV_A_ waittime);	2379	backend_poll (EV_A_ waittime);
2337	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2380	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2349	#if EV_IDLE_ENABLE	2392	#if EV_IDLE_ENABLE
2350	/* queue idle watchers unless other events are pending */	2393	/* queue idle watchers unless other events are pending */
2351	idle_reify (EV_A);	2394	idle_reify (EV_A);
2352	#endif	2395	#endif
2353		2396
		2397	#if EV_CHECK_ENABLE
2354	/* queue check watchers, to be executed first */	2398	/* queue check watchers, to be executed first */
2355	if (expect_false (checkcnt))	2399	if (expect_false (checkcnt))
2356	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2400	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2401	#endif
2357		2402
2358	EV_INVOKE_PENDING;	2403	EV_INVOKE_PENDING;
2359	}	2404	}
2360	while (expect_true (	2405	while (expect_true (
2361	activecnt	2406	activecnt
…		…
2364	));	2409	));
2365		2410
2366	if (loop_done == EVUNLOOP_ONE)	2411	if (loop_done == EVUNLOOP_ONE)
2367	loop_done = EVUNLOOP_CANCEL;	2412	loop_done = EVUNLOOP_CANCEL;
2368		2413
2369	#if EV_MINIMAL < 2	2414	#if EV_FEATURE_API
2370	--loop_depth;	2415	--loop_depth;
2371	#endif	2416	#endif
2372	}	2417	}
2373		2418
2374	void	2419	void
…		…
2500		2545
2501	if (expect_false (ev_is_active (w)))	2546	if (expect_false (ev_is_active (w)))
2502	return;	2547	return;
2503		2548
2504	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2549	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2505	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));	2550	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2506		2551
2507	EV_FREQUENT_CHECK;	2552	EV_FREQUENT_CHECK;
2508		2553
2509	ev_start (EV_A_ (W)w, 1);	2554	ev_start (EV_A_ (W)w, 1);
2510	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2555	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2580	timers [active] = timers [timercnt + HEAP0];	2625	timers [active] = timers [timercnt + HEAP0];
2581	adjustheap (timers, timercnt, active);	2626	adjustheap (timers, timercnt, active);
2582	}	2627	}
2583	}	2628	}
2584		2629
2585	EV_FREQUENT_CHECK;
2586
2587	ev_at (w) -= mn_now;	2630	ev_at (w) -= mn_now;
2588		2631
2589	ev_stop (EV_A_ (W)w);	2632	ev_stop (EV_A_ (W)w);
		2633
		2634	EV_FREQUENT_CHECK;
2590	}	2635	}
2591		2636
2592	void noinline	2637	void noinline
2593	ev_timer_again (EV_P_ ev_timer *w)	2638	ev_timer_again (EV_P_ ev_timer *w)
2594	{	2639	{
…		…
2673	periodics [active] = periodics [periodiccnt + HEAP0];	2718	periodics [active] = periodics [periodiccnt + HEAP0];
2674	adjustheap (periodics, periodiccnt, active);	2719	adjustheap (periodics, periodiccnt, active);
2675	}	2720	}
2676	}	2721	}
2677		2722
2678	EV_FREQUENT_CHECK;
2679
2680	ev_stop (EV_A_ (W)w);	2723	ev_stop (EV_A_ (W)w);
		2724
		2725	EV_FREQUENT_CHECK;
2681	}	2726	}
2682		2727
2683	void noinline	2728	void noinline
2684	ev_periodic_again (EV_P_ ev_periodic *w)	2729	ev_periodic_again (EV_P_ ev_periodic *w)
2685	{	2730	{
…		…
2690	#endif	2735	#endif
2691		2736
2692	#ifndef SA_RESTART	2737	#ifndef SA_RESTART
2693	# define SA_RESTART 0	2738	# define SA_RESTART 0
2694	#endif	2739	#endif
		2740
		2741	#if EV_SIGNAL_ENABLE
2695		2742
2696	void noinline	2743	void noinline
2697	ev_signal_start (EV_P_ ev_signal *w)	2744	ev_signal_start (EV_P_ ev_signal *w)
2698	{	2745	{
2699	if (expect_false (ev_is_active (w)))	2746	if (expect_false (ev_is_active (w)))
…		…
2746	if (!((WL)w)->next)	2793	if (!((WL)w)->next)
2747	# if EV_USE_SIGNALFD	2794	# if EV_USE_SIGNALFD
2748	if (sigfd < 0) /TODO/	2795	if (sigfd < 0) /TODO/
2749	# endif	2796	# endif
2750	{	2797	{
2751	# if _WIN32	2798	# ifdef _WIN32
2752	evpipe_init (EV_A);	2799	evpipe_init (EV_A);
2753		2800
2754	signal (w->signum, ev_sighandler);	2801	signal (w->signum, ev_sighandler);
2755	# else	2802	# else
2756	struct sigaction sa;	2803	struct sigaction sa;
…		…
2789	signals [w->signum - 1].loop = 0; /* unattach from signal */	2836	signals [w->signum - 1].loop = 0; /* unattach from signal */
2790	#endif	2837	#endif
2791	#if EV_USE_SIGNALFD	2838	#if EV_USE_SIGNALFD
2792	if (sigfd >= 0)	2839	if (sigfd >= 0)
2793	{	2840	{
2794	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2841	sigset_t ss;
		2842
		2843	sigemptyset (&ss);
		2844	sigaddset (&ss, w->signum);
2795	sigdelset (&sigfd_set, w->signum);	2845	sigdelset (&sigfd_set, w->signum);
		2846
2796	signalfd (sigfd, &sigfd_set, 0);	2847	signalfd (sigfd, &sigfd_set, 0);
2797	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2848	sigprocmask (SIG_UNBLOCK, &ss, 0);
2798	/TODO: maybe unblock signal? /
2799	}	2849	}
2800	else	2850	else
2801	#endif	2851	#endif
2802	signal (w->signum, SIG_DFL);	2852	signal (w->signum, SIG_DFL);
2803	}	2853	}
2804		2854
2805	EV_FREQUENT_CHECK;	2855	EV_FREQUENT_CHECK;
2806	}	2856	}
2807		2857
		2858	#endif
		2859
		2860	#if EV_CHILD_ENABLE
		2861
2808	void	2862	void
2809	ev_child_start (EV_P_ ev_child *w)	2863	ev_child_start (EV_P_ ev_child *w)
2810	{	2864	{
2811	#if EV_MULTIPLICITY	2865	#if EV_MULTIPLICITY
2812	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2866	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2815	return;	2869	return;
2816		2870
2817	EV_FREQUENT_CHECK;	2871	EV_FREQUENT_CHECK;
2818		2872
2819	ev_start (EV_A_ (W)w, 1);	2873	ev_start (EV_A_ (W)w, 1);
2820	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2874	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2821		2875
2822	EV_FREQUENT_CHECK;	2876	EV_FREQUENT_CHECK;
2823	}	2877	}
2824		2878
2825	void	2879	void
…		…
2829	if (expect_false (!ev_is_active (w)))	2883	if (expect_false (!ev_is_active (w)))
2830	return;	2884	return;
2831		2885
2832	EV_FREQUENT_CHECK;	2886	EV_FREQUENT_CHECK;
2833		2887
2834	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2888	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2835	ev_stop (EV_A_ (W)w);	2889	ev_stop (EV_A_ (W)w);
2836		2890
2837	EV_FREQUENT_CHECK;	2891	EV_FREQUENT_CHECK;
2838	}	2892	}
		2893
		2894	#endif
2839		2895
2840	#if EV_STAT_ENABLE	2896	#if EV_STAT_ENABLE
2841		2897
2842	# ifdef _WIN32	2898	# ifdef _WIN32
2843	# undef lstat	2899	# undef lstat
…		…
2849	#define MIN_STAT_INTERVAL 0.1074891	2905	#define MIN_STAT_INTERVAL 0.1074891
2850		2906
2851	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2907	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2852		2908
2853	#if EV_USE_INOTIFY	2909	#if EV_USE_INOTIFY
2854	# define EV_INOTIFY_BUFSIZE 8192	2910
		2911	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2912	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2855		2913
2856	static void noinline	2914	static void noinline
2857	infy_add (EV_P_ ev_stat *w)	2915	infy_add (EV_P_ ev_stat *w)
2858	{	2916	{
2859	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);	2917	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);
…		…
2908	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2966	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2909	}	2967	}
2910	}	2968	}
2911		2969
2912	if (w->wd >= 0)	2970	if (w->wd >= 0)
2913	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2971	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2914		2972
2915	/* now re-arm timer, if required */	2973	/* now re-arm timer, if required */
2916	if (ev_is_active (&w->timer)) ev_ref (EV_A);	2974	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2917	ev_timer_again (EV_A_ &w->timer);	2975	ev_timer_again (EV_A_ &w->timer);
2918	if (ev_is_active (&w->timer)) ev_unref (EV_A);	2976	if (ev_is_active (&w->timer)) ev_unref (EV_A);
…		…
2926		2984
2927	if (wd < 0)	2985	if (wd < 0)
2928	return;	2986	return;
2929		2987
2930	w->wd = -2;	2988	w->wd = -2;
2931	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	2989	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2932	wlist_del (&fs_hash [slot].head, (WL)w);	2990	wlist_del (&fs_hash [slot].head, (WL)w);
2933		2991
2934	/* remove this watcher, if others are watching it, they will rearm */	2992	/* remove this watcher, if others are watching it, they will rearm */
2935	inotify_rm_watch (fs_fd, wd);	2993	inotify_rm_watch (fs_fd, wd);
2936	}	2994	}
…		…
2938	static void noinline	2996	static void noinline
2939	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2997	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2940	{	2998	{
2941	if (slot < 0)	2999	if (slot < 0)
2942	/* overflow, need to check for all hash slots */	3000	/* overflow, need to check for all hash slots */
2943	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3001	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2944	infy_wd (EV_A_ slot, wd, ev);	3002	infy_wd (EV_A_ slot, wd, ev);
2945	else	3003	else
2946	{	3004	{
2947	WL w_;	3005	WL w_;
2948		3006
2949	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3007	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2950	{	3008	{
2951	ev_stat w = (ev_stat )w_;	3009	ev_stat w = (ev_stat )w_;
2952	w_ = w_->next; /* lets us remove this watcher and all before it */	3010	w_ = w_->next; /* lets us remove this watcher and all before it */
2953		3011
2954	if (w->wd == wd \|\| wd == -1)	3012	if (w->wd == wd \|\| wd == -1)
2955	{	3013	{
2956	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	3014	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2957	{	3015	{
2958	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3016	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2959	w->wd = -1;	3017	w->wd = -1;
2960	infy_add (EV_A_ w); /* re-add, no matter what */	3018	infy_add (EV_A_ w); /* re-add, no matter what */
2961	}	3019	}
2962		3020
2963	stat_timer_cb (EV_A_ &w->timer, 0);	3021	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2968		3026
2969	static void	3027	static void
2970	infy_cb (EV_P_ ev_io *w, int revents)	3028	infy_cb (EV_P_ ev_io *w, int revents)
2971	{	3029	{
2972	char buf [EV_INOTIFY_BUFSIZE];	3030	char buf [EV_INOTIFY_BUFSIZE];
2973	struct inotify_event ev = (struct inotify_event )buf;
2974	int ofs;	3031	int ofs;
2975	int len = read (fs_fd, buf, sizeof (buf));	3032	int len = read (fs_fd, buf, sizeof (buf));
2976		3033
2977	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3034	for (ofs = 0; ofs < len; )
		3035	{
		3036	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2978	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3037	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3038	ofs += sizeof (struct inotify_event) + ev->len;
		3039	}
		3040	}
		3041
		3042	inline_size unsigned int
		3043	ev_linux_version (void)
		3044	{
		3045	struct utsname buf;
		3046	unsigned int v;
		3047	int i;
		3048	char *p = buf.release;
		3049
		3050	if (uname (&buf))
		3051	return 0;
		3052
		3053	for (i = 3+1; --i; )
		3054	{
		3055	unsigned int c = 0;
		3056
		3057	for (;;)
		3058	{
		3059	if (p >= '0' && p <= '9')
		3060	c = c * 10 + *p++ - '0';
		3061	else
		3062	{
		3063	p += *p == '.';
		3064	break;
		3065	}
		3066	}
		3067
		3068	v = (v << 8) \| c;
		3069	}
		3070
		3071	return v;
2979	}	3072	}
2980		3073
2981	inline_size void	3074	inline_size void
2982	check_2625 (EV_P)	3075	ev_check_2625 (EV_P)
2983	{	3076	{
2984	/* kernels < 2.6.25 are borked	3077	/* kernels < 2.6.25 are borked
2985	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3078	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2986	*/	3079	*/
2987	struct utsname buf;	3080	if (ev_linux_version () < 0x020619)
2988	int major, minor, micro;
2989
2990	if (uname (&buf))
2991	return;
2992
2993	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2994	return;
2995
2996	if (major < 2
2997	\|\| (major == 2 && minor < 6)
2998	\|\| (major == 2 && minor == 6 && micro < 25))
2999	return;	3081	return;
3000		3082
3001	fs_2625 = 1;	3083	fs_2625 = 1;
3002	}	3084	}
3003		3085
…		…
3018	if (fs_fd != -2)	3100	if (fs_fd != -2)
3019	return;	3101	return;
3020		3102
3021	fs_fd = -1;	3103	fs_fd = -1;
3022		3104
3023	check_2625 (EV_A);	3105	ev_check_2625 (EV_A);
3024		3106
3025	fs_fd = infy_newfd ();	3107	fs_fd = infy_newfd ();
3026		3108
3027	if (fs_fd >= 0)	3109	if (fs_fd >= 0)
3028	{	3110	{
…		…
3053	ev_io_set (&fs_w, fs_fd, EV_READ);	3135	ev_io_set (&fs_w, fs_fd, EV_READ);
3054	ev_io_start (EV_A_ &fs_w);	3136	ev_io_start (EV_A_ &fs_w);
3055	ev_unref (EV_A);	3137	ev_unref (EV_A);
3056	}	3138	}
3057		3139
3058	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3140	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3059	{	3141	{
3060	WL w_ = fs_hash [slot].head;	3142	WL w_ = fs_hash [slot].head;
3061	fs_hash [slot].head = 0;	3143	fs_hash [slot].head = 0;
3062		3144
3063	while (w_)	3145	while (w_)
…		…
3100	static void noinline	3182	static void noinline
3101	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3183	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3102	{	3184	{
3103	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3185	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
3104		3186
3105	/* we copy this here each the time so that */	3187	ev_statdata prev = w->attr;
3106	/* prev has the old value when the callback gets invoked */
3107	w->prev = w->attr;
3108	ev_stat_stat (EV_A_ w);	3188	ev_stat_stat (EV_A_ w);
3109		3189
3110	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3190	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3111	if (	3191	if (
3112	w->prev.st_dev != w->attr.st_dev	3192	prev.st_dev != w->attr.st_dev
3113	\|\| w->prev.st_ino != w->attr.st_ino	3193	\|\| prev.st_ino != w->attr.st_ino
3114	\|\| w->prev.st_mode != w->attr.st_mode	3194	\|\| prev.st_mode != w->attr.st_mode
3115	\|\| w->prev.st_nlink != w->attr.st_nlink	3195	\|\| prev.st_nlink != w->attr.st_nlink
3116	\|\| w->prev.st_uid != w->attr.st_uid	3196	\|\| prev.st_uid != w->attr.st_uid
3117	\|\| w->prev.st_gid != w->attr.st_gid	3197	\|\| prev.st_gid != w->attr.st_gid
3118	\|\| w->prev.st_rdev != w->attr.st_rdev	3198	\|\| prev.st_rdev != w->attr.st_rdev
3119	\|\| w->prev.st_size != w->attr.st_size	3199	\|\| prev.st_size != w->attr.st_size
3120	\|\| w->prev.st_atime != w->attr.st_atime	3200	\|\| prev.st_atime != w->attr.st_atime
3121	\|\| w->prev.st_mtime != w->attr.st_mtime	3201	\|\| prev.st_mtime != w->attr.st_mtime
3122	\|\| w->prev.st_ctime != w->attr.st_ctime	3202	\|\| prev.st_ctime != w->attr.st_ctime
3123	) {	3203	) {
		3204	/* we only update w->prev on actual differences */
		3205	/* in case we test more often than invoke the callback, */
		3206	/* to ensure that prev is always different to attr */
		3207	w->prev = prev;
		3208
3124	#if EV_USE_INOTIFY	3209	#if EV_USE_INOTIFY
3125	if (fs_fd >= 0)	3210	if (fs_fd >= 0)
3126	{	3211	{
3127	infy_del (EV_A_ w);	3212	infy_del (EV_A_ w);
3128	infy_add (EV_A_ w);	3213	infy_add (EV_A_ w);
…		…
3235		3320
3236	EV_FREQUENT_CHECK;	3321	EV_FREQUENT_CHECK;
3237	}	3322	}
3238	#endif	3323	#endif
3239		3324
		3325	#if EV_PREPARE_ENABLE
3240	void	3326	void
3241	ev_prepare_start (EV_P_ ev_prepare *w)	3327	ev_prepare_start (EV_P_ ev_prepare *w)
3242	{	3328	{
3243	if (expect_false (ev_is_active (w)))	3329	if (expect_false (ev_is_active (w)))
3244	return;	3330	return;
…		…
3270		3356
3271	ev_stop (EV_A_ (W)w);	3357	ev_stop (EV_A_ (W)w);
3272		3358
3273	EV_FREQUENT_CHECK;	3359	EV_FREQUENT_CHECK;
3274	}	3360	}
		3361	#endif
3275		3362
		3363	#if EV_CHECK_ENABLE
3276	void	3364	void
3277	ev_check_start (EV_P_ ev_check *w)	3365	ev_check_start (EV_P_ ev_check *w)
3278	{	3366	{
3279	if (expect_false (ev_is_active (w)))	3367	if (expect_false (ev_is_active (w)))
3280	return;	3368	return;
…		…
3306		3394
3307	ev_stop (EV_A_ (W)w);	3395	ev_stop (EV_A_ (W)w);
3308		3396
3309	EV_FREQUENT_CHECK;	3397	EV_FREQUENT_CHECK;
3310	}	3398	}
		3399	#endif
3311		3400
3312	#if EV_EMBED_ENABLE	3401	#if EV_EMBED_ENABLE
3313	void noinline	3402	void noinline
3314	ev_embed_sweep (EV_P_ ev_embed *w)	3403	ev_embed_sweep (EV_P_ ev_embed *w)
3315	{	3404	{
…		…
3409	EV_FREQUENT_CHECK;	3498	EV_FREQUENT_CHECK;
3410		3499
3411	ev_io_stop (EV_A_ &w->io);	3500	ev_io_stop (EV_A_ &w->io);
3412	ev_prepare_stop (EV_A_ &w->prepare);	3501	ev_prepare_stop (EV_A_ &w->prepare);
3413	ev_fork_stop (EV_A_ &w->fork);	3502	ev_fork_stop (EV_A_ &w->fork);
		3503
		3504	ev_stop (EV_A_ (W)w);
3414		3505
3415	EV_FREQUENT_CHECK;	3506	EV_FREQUENT_CHECK;
3416	}	3507	}
3417	#endif	3508	#endif
3418		3509
…		…
3642	if (types & EV_ASYNC)	3733	if (types & EV_ASYNC)
3643	for (i = asynccnt; i--; )	3734	for (i = asynccnt; i--; )
3644	cb (EV_A_ EV_ASYNC, asyncs [i]);	3735	cb (EV_A_ EV_ASYNC, asyncs [i]);
3645	#endif	3736	#endif
3646		3737
		3738	#if EV_PREPARE_ENABLE
3647	if (types & EV_PREPARE)	3739	if (types & EV_PREPARE)
3648	for (i = preparecnt; i--; )	3740	for (i = preparecnt; i--; )
3649	#if EV_EMBED_ENABLE	3741	# if EV_EMBED_ENABLE
3650	if (ev_cb (prepares [i]) != embed_prepare_cb)	3742	if (ev_cb (prepares [i]) != embed_prepare_cb)
3651	#endif	3743	# endif
3652	cb (EV_A_ EV_PREPARE, prepares [i]);	3744	cb (EV_A_ EV_PREPARE, prepares [i]);
		3745	#endif
3653		3746
		3747	#if EV_CHECK_ENABLE
3654	if (types & EV_CHECK)	3748	if (types & EV_CHECK)
3655	for (i = checkcnt; i--; )	3749	for (i = checkcnt; i--; )
3656	cb (EV_A_ EV_CHECK, checks [i]);	3750	cb (EV_A_ EV_CHECK, checks [i]);
		3751	#endif
3657		3752
		3753	#if EV_SIGNAL_ENABLE
3658	if (types & EV_SIGNAL)	3754	if (types & EV_SIGNAL)
3659	for (i = 0; i < EV_NSIG - 1; ++i)	3755	for (i = 0; i < EV_NSIG - 1; ++i)
3660	for (wl = signals [i].head; wl; )	3756	for (wl = signals [i].head; wl; )
3661	{	3757	{
3662	wn = wl->next;	3758	wn = wl->next;
3663	cb (EV_A_ EV_SIGNAL, wl);	3759	cb (EV_A_ EV_SIGNAL, wl);
3664	wl = wn;	3760	wl = wn;
3665	}	3761	}
		3762	#endif
3666		3763
		3764	#if EV_CHILD_ENABLE
3667	if (types & EV_CHILD)	3765	if (types & EV_CHILD)
3668	for (i = EV_PID_HASHSIZE; i--; )	3766	for (i = (EV_PID_HASHSIZE); i--; )
3669	for (wl = childs [i]; wl; )	3767	for (wl = childs [i]; wl; )
3670	{	3768	{
3671	wn = wl->next;	3769	wn = wl->next;
3672	cb (EV_A_ EV_CHILD, wl);	3770	cb (EV_A_ EV_CHILD, wl);
3673	wl = wn;	3771	wl = wn;
3674	}	3772	}
		3773	#endif
3675	/* EV_STAT 0x00001000 /* stat data changed */	3774	/* EV_STAT 0x00001000 /* stat data changed */
3676	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3775	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3677	}	3776	}
3678	#endif	3777	#endif
3679		3778

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.318 by root, Tue Nov 17 00:22:28 2009 UTC vs. Revision 1.338 by root, Tue Mar 16 00:20:17 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.318 by root, Tue Nov 17 00:22:28 2009 UTC vs.
Revision 1.338 by root, Tue Mar 16 00:20:17 2010 UTC