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

Comparing libev/ev.c (file contents):
Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs.
Revision 1.341 by root, Tue Mar 16 20:48:29 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	*
79	# endif	79	# endif
80	# endif	80	# endif
81		81
82	# ifndef EV_USE_NANOSLEEP	82	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP	83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	84	# define EV_USE_NANOSLEEP EV_FEATURE_OS
85	# else	85	# else
86	# define EV_USE_NANOSLEEP 0	86	# define EV_USE_NANOSLEEP 0
87	# endif	87	# endif
88	# endif	88	# endif
89		89
90	# ifndef EV_USE_SELECT	90	# ifndef EV_USE_SELECT
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
92	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT EV_FEATURE_BACKENDS
93	# else	93	# else
94	# define EV_USE_SELECT 0	94	# define EV_USE_SELECT 0
95	# endif	95	# endif
96	# endif	96	# endif
97		97
98	# ifndef EV_USE_POLL	98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H	99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1	100	# define EV_USE_POLL EV_FEATURE_BACKENDS
101	# else	101	# else
102	# define EV_USE_POLL 0	102	# define EV_USE_POLL 0
103	# endif	103	# endif
104	# endif	104	# endif
105		105
106	# ifndef EV_USE_EPOLL	106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	108	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
109	# else	109	# else
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	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
117	# else	117	# else
118	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
119	# endif	119	# endif
120	# endif	120	# endif
121		121
122	# ifndef EV_USE_PORT	122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	124	# define EV_USE_PORT EV_FEATURE_BACKENDS
125	# else	125	# else
126	# define EV_USE_PORT 0	126	# define EV_USE_PORT 0
127	# endif	127	# endif
128	# endif	128	# endif
129		129
130	# ifndef EV_USE_INOTIFY	130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	132	# define EV_USE_INOTIFY EV_FEATURE_OS
133	# else	133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
135	# endif	135	# endif
136	# endif	136	# endif
137		137
138	# ifndef EV_USE_SIGNALFD	138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	140	# define EV_USE_SIGNALFD EV_FEATURE_OS
141	# else	141	# else
142	# define EV_USE_SIGNALFD 0	142	# define EV_USE_SIGNALFD 0
143	# endif	143	# endif
144	# endif	144	# endif
145		145
146	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else	149	# else
150	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
151	# endif	151	# endif
152	# endif	152	# endif
153		153
…		…
163		163
164	#include <assert.h>	164	#include <assert.h>
165	#include <errno.h>	165	#include <errno.h>
166	#include <sys/types.h>	166	#include <sys/types.h>
167	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
168		169
169	#include <signal.h>	170	#include <signal.h>
170		171
171	#ifdef EV_H	172	#ifdef EV_H
172	# include EV_H	173	# include EV_H
…		…
183	# define WIN32_LEAN_AND_MEAN	184	# define WIN32_LEAN_AND_MEAN
184	# include <windows.h>	185	# include <windows.h>
185	# ifndef EV_SELECT_IS_WINSOCKET	186	# ifndef EV_SELECT_IS_WINSOCKET
186	# define EV_SELECT_IS_WINSOCKET 1	187	# define EV_SELECT_IS_WINSOCKET 1
187	# endif	188	# endif
		189	# undef EV_AVOID_STDIO
188	#endif	190	#endif
189		191
190	/* 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 */
191		193
192	/* try to deduce the maximum number of signals on this platform */	194	/* try to deduce the maximum number of signals on this platform */
…		…
205	#elif defined (MAXSIG)	207	#elif defined (MAXSIG)
206	# define EV_NSIG (MAXSIG+1)	208	# define EV_NSIG (MAXSIG+1)
207	#elif defined (MAX_SIG)	209	#elif defined (MAX_SIG)
208	# define EV_NSIG (MAX_SIG+1)	210	# define EV_NSIG (MAX_SIG+1)
209	#elif defined (SIGARRAYSIZE)	211	#elif defined (SIGARRAYSIZE)
210	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	212	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211	#elif defined (_sys_nsig)	213	#elif defined (_sys_nsig)
212	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213	#else	215	#else
214	# error "unable to find value for NSIG, please report"	216	# error "unable to find value for NSIG, please report"
215	/* 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! :) */
216	# define EV_NSIG 65	219	# define EV_NSIG 65
217	#endif	220	#endif
218		221
219	#ifndef EV_USE_CLOCK_SYSCALL	222	#ifndef EV_USE_CLOCK_SYSCALL
220	# if __linux && __GLIBC__ >= 2	223	# if __linux && __GLIBC__ >= 2
221	# define EV_USE_CLOCK_SYSCALL 1	224	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222	# else	225	# else
223	# define EV_USE_CLOCK_SYSCALL 0	226	# define EV_USE_CLOCK_SYSCALL 0
224	# endif	227	# endif
225	#endif	228	#endif
226		229
227	#ifndef EV_USE_MONOTONIC	230	#ifndef EV_USE_MONOTONIC
228	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	231	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
229	# define EV_USE_MONOTONIC 1	232	# define EV_USE_MONOTONIC EV_FEATURE_OS
230	# else	233	# else
231	# define EV_USE_MONOTONIC 0	234	# define EV_USE_MONOTONIC 0
232	# endif	235	# endif
233	#endif	236	#endif
234		237
…		…
236	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	239	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237	#endif	240	#endif
238		241
239	#ifndef EV_USE_NANOSLEEP	242	#ifndef EV_USE_NANOSLEEP
240	# if _POSIX_C_SOURCE >= 199309L	243	# if _POSIX_C_SOURCE >= 199309L
241	# define EV_USE_NANOSLEEP 1	244	# define EV_USE_NANOSLEEP EV_FEATURE_OS
242	# else	245	# else
243	# define EV_USE_NANOSLEEP 0	246	# define EV_USE_NANOSLEEP 0
244	# endif	247	# endif
245	#endif	248	#endif
246		249
247	#ifndef EV_USE_SELECT	250	#ifndef EV_USE_SELECT
248	# define EV_USE_SELECT 1	251	# define EV_USE_SELECT EV_FEATURE_BACKENDS
249	#endif	252	#endif
250		253
251	#ifndef EV_USE_POLL	254	#ifndef EV_USE_POLL
252	# ifdef _WIN32	255	# ifdef _WIN32
253	# define EV_USE_POLL 0	256	# define EV_USE_POLL 0
254	# else	257	# else
255	# define EV_USE_POLL 1	258	# define EV_USE_POLL EV_FEATURE_BACKENDS
256	# endif	259	# endif
257	#endif	260	#endif
258		261
259	#ifndef EV_USE_EPOLL	262	#ifndef EV_USE_EPOLL
260	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	263	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261	# define EV_USE_EPOLL 1	264	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262	# else	265	# else
263	# define EV_USE_EPOLL 0	266	# define EV_USE_EPOLL 0
264	# endif	267	# endif
265	#endif	268	#endif
266		269
…		…
272	# define EV_USE_PORT 0	275	# define EV_USE_PORT 0
273	#endif	276	#endif
274		277
275	#ifndef EV_USE_INOTIFY	278	#ifndef EV_USE_INOTIFY
276	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	279	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277	# define EV_USE_INOTIFY 1	280	# define EV_USE_INOTIFY EV_FEATURE_OS
278	# else	281	# else
279	# define EV_USE_INOTIFY 0	282	# define EV_USE_INOTIFY 0
280	# endif	283	# endif
281	#endif	284	#endif
282		285
283	#ifndef EV_PID_HASHSIZE	286	#ifndef EV_PID_HASHSIZE
284	# if EV_MINIMAL	287	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285	# define EV_PID_HASHSIZE 1
286	# else
287	# define EV_PID_HASHSIZE 16
288	# endif
289	#endif	288	#endif
290		289
291	#ifndef EV_INOTIFY_HASHSIZE	290	#ifndef EV_INOTIFY_HASHSIZE
292	# if EV_MINIMAL	291	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293	# define EV_INOTIFY_HASHSIZE 1
294	# else
295	# define EV_INOTIFY_HASHSIZE 16
296	# endif
297	#endif	292	#endif
298		293
299	#ifndef EV_USE_EVENTFD	294	#ifndef EV_USE_EVENTFD
300	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	295	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301	# define EV_USE_EVENTFD 1	296	# define EV_USE_EVENTFD EV_FEATURE_OS
302	# else	297	# else
303	# define EV_USE_EVENTFD 0	298	# define EV_USE_EVENTFD 0
304	# endif	299	# endif
305	#endif	300	#endif
306		301
307	#ifndef EV_USE_SIGNALFD	302	#ifndef EV_USE_SIGNALFD
308	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	303	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309	# define EV_USE_SIGNALFD 1	304	# define EV_USE_SIGNALFD EV_FEATURE_OS
310	# else	305	# else
311	# define EV_USE_SIGNALFD 0	306	# define EV_USE_SIGNALFD 0
312	# endif	307	# endif
313	#endif	308	#endif
314		309
…		…
317	# define EV_USE_4HEAP 1	312	# define EV_USE_4HEAP 1
318	# define EV_HEAP_CACHE_AT 1	313	# define EV_HEAP_CACHE_AT 1
319	#endif	314	#endif
320		315
321	#ifndef EV_VERIFY	316	#ifndef EV_VERIFY
322	# define EV_VERIFY !EV_MINIMAL	317	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323	#endif	318	#endif
324		319
325	#ifndef EV_USE_4HEAP	320	#ifndef EV_USE_4HEAP
326	# define EV_USE_4HEAP !EV_MINIMAL	321	# define EV_USE_4HEAP EV_FEATURE_DATA
327	#endif	322	#endif
328		323
329	#ifndef EV_HEAP_CACHE_AT	324	#ifndef EV_HEAP_CACHE_AT
330	# define EV_HEAP_CACHE_AT !EV_MINIMAL	325	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331	#endif	326	#endif
332		327
333	/* 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, */
334	/* which makes programs even slower. might work on other unices, too. */	329	/* which makes programs even slower. might work on other unices, too. */
335	#if EV_USE_CLOCK_SYSCALL	330	#if EV_USE_CLOCK_SYSCALL
…		…
402	# endif	397	# endif
403	# endif	398	# endif
404	# ifdef __cplusplus	399	# ifdef __cplusplus
405	extern "C" {	400	extern "C" {
406	# endif	401	# endif
407	int eventfd (unsigned int initval, int flags);	402	int (eventfd) (unsigned int initval, int flags);
408	# ifdef __cplusplus	403	# ifdef __cplusplus
409	}	404	}
410	# endif	405	# endif
411	#endif	406	#endif
412		407
…		…
440		435
441		436
442	/**/	437	/**/
443		438
444	#if EV_VERIFY >= 3	439	#if EV_VERIFY >= 3
445	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	440	# define EV_FREQUENT_CHECK ev_verify (EV_A)
446	#else	441	#else
447	# define EV_FREQUENT_CHECK do { } while (0)	442	# define EV_FREQUENT_CHECK do { } while (0)
448	#endif	443	#endif
449		444
450	/*	445	/*
…		…
473		468
474	#define expect_false(expr) expect ((expr) != 0, 0)	469	#define expect_false(expr) expect ((expr) != 0, 0)
475	#define expect_true(expr) expect ((expr) != 0, 1)	470	#define expect_true(expr) expect ((expr) != 0, 1)
476	#define inline_size static inline	471	#define inline_size static inline
477		472
478	#if EV_MINIMAL	473	#if EV_FEATURE_CODE
		474	# define inline_speed static inline
		475	#else
479	# define inline_speed static noinline	476	# define inline_speed static noinline
480	#else
481	# define inline_speed static inline
482	#endif	477	#endif
483		478
484	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	479	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
485		480
486	#if EV_MINPRI == EV_MAXPRI	481	#if EV_MINPRI == EV_MAXPRI
…		…
523	# include "ev_win32.c"	518	# include "ev_win32.c"
524	#endif	519	#endif
525		520
526	/*****************************************************************************/	521	/*****************************************************************************/
527		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
		530
528	static void (syserr_cb)(const char msg);	531	static void (syserr_cb)(const char msg);
529		532
530	void	533	void
531	ev_set_syserr_cb (void (cb)(const char msg))	534	ev_set_syserr_cb (void (cb)(const char msg))
532	{	535	{
…		…
541		544
542	if (syserr_cb)	545	if (syserr_cb)
543	syserr_cb (msg);	546	syserr_cb (msg);
544	else	547	else
545	{	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
546	perror (msg);	557	perror (msg);
		558	#endif
547	abort ();	559	abort ();
548	}	560	}
549	}	561	}
550		562
551	static void *	563	static void *
552	ev_realloc_emul (void *ptr, long size)	564	ev_realloc_emul (void *ptr, long size)
553	{	565	{
		566	#if __GLIBC__
		567	return realloc (ptr, size);
		568	#else
554	/* some systems, notably openbsd and darwin, fail to properly	569	/* some systems, notably openbsd and darwin, fail to properly
555	* 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
556	* the single unix specification, so work around them here.	571	* the single unix specification, so work around them here.
557	*/	572	*/
558		573
559	if (size)	574	if (size)
560	return realloc (ptr, size);	575	return realloc (ptr, size);
561		576
562	free (ptr);	577	free (ptr);
563	return 0;	578	return 0;
		579	#endif
564	}	580	}
565		581
566	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	582	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
567		583
568	void	584	void
…		…
576	{	592	{
577	ptr = alloc (ptr, size);	593	ptr = alloc (ptr, size);
578		594
579	if (!ptr && size)	595	if (!ptr && size)
580	{	596	{
		597	#if EV_AVOID_STDIO
		598	ev_printerr ("libev: memory allocation failed, aborting.\n");
		599	#else
581	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	600	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		601	#endif
582	abort ();	602	abort ();
583	}	603	}
584		604
585	return ptr;	605	return ptr;
586	}	606	}
…		…
668		688
669	static int ev_default_loop_ptr;	689	static int ev_default_loop_ptr;
670		690
671	#endif	691	#endif
672		692
673	#if EV_MINIMAL < 2	693	#if EV_FEATURE_API
674	# 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)
675	# 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)
676	# define EV_INVOKE_PENDING invoke_cb (EV_A)	696	# define EV_INVOKE_PENDING invoke_cb (EV_A)
677	#else	697	#else
678	# define EV_RELEASE_CB (void)0	698	# define EV_RELEASE_CB (void)0
…		…
863	}	883	}
864		884
865	/*****************************************************************************/	885	/*****************************************************************************/
866		886
867	inline_speed void	887	inline_speed void
868	fd_event_nc (EV_P_ int fd, int revents)	888	fd_event_nocheck (EV_P_ int fd, int revents)
869	{	889	{
870	ANFD *anfd = anfds + fd;	890	ANFD *anfd = anfds + fd;
871	ev_io *w;	891	ev_io *w;
872		892
873	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)
…		…
885	fd_event (EV_P_ int fd, int revents)	905	fd_event (EV_P_ int fd, int revents)
886	{	906	{
887	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
888		908
889	if (expect_true (!anfd->reify))	909	if (expect_true (!anfd->reify))
890	fd_event_nc (EV_A_ fd, revents);	910	fd_event_nocheck (EV_A_ fd, revents);
891	}	911	}
892		912
893	void	913	void
894	ev_feed_fd_event (EV_P_ int fd, int revents)	914	ev_feed_fd_event (EV_P_ int fd, int revents)
895	{	915	{
896	if (fd >= 0 && fd < anfdmax)	916	if (fd >= 0 && fd < anfdmax)
897	fd_event_nc (EV_A_ fd, revents);	917	fd_event_nocheck (EV_A_ fd, revents);
898	}	918	}
899		919
900	/* make sure the external fd watch events are in-sync */	920	/* make sure the external fd watch events are in-sync */
901	/* with the kernel/libev internal state */	921	/* with the kernel/libev internal state */
902	inline_size void	922	inline_size void
…		…
965	ev_io_stop (EV_A_ w);	985	ev_io_stop (EV_A_ w);
966	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);
967	}	987	}
968	}	988	}
969		989
970	/* check whether the given fd is atcually valid, for error recovery */	990	/* check whether the given fd is actually valid, for error recovery */
971	inline_size int	991	inline_size int
972	fd_valid (int fd)	992	fd_valid (int fd)
973	{	993	{
974	#ifdef _WIN32	994	#ifdef _WIN32
975	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	995	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
…		…
1015	{	1035	{
1016	anfds [fd].events = 0;	1036	anfds [fd].events = 0;
1017	anfds [fd].emask = 0;	1037	anfds [fd].emask = 0;
1018	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1038	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
1019	}	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
1020	}	1054	}
1021		1055
1022	/*****************************************************************************/	1056	/*****************************************************************************/
1023		1057
1024	/*	1058	/*
…		…
1178		1212
1179	static ANSIG signals [EV_NSIG - 1];	1213	static ANSIG signals [EV_NSIG - 1];
1180		1214
1181	/*****************************************************************************/	1215	/*****************************************************************************/
1182		1216
1183	/* used to prepare libev internal fd's */	1217	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1184	/* this is not fork-safe */
1185	inline_speed void
1186	fd_intern (int fd)
1187	{
1188	#ifdef _WIN32
1189	unsigned long arg = 1;
1190	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1191	#else
1192	fcntl (fd, F_SETFD, FD_CLOEXEC);
1193	fcntl (fd, F_SETFL, O_NONBLOCK);
1194	#endif
1195	}
1196		1218
1197	static void noinline	1219	static void noinline
1198	evpipe_init (EV_P)	1220	evpipe_init (EV_P)
1199	{	1221	{
1200	if (!ev_is_active (&pipe_w))	1222	if (!ev_is_active (&pipe_w))
1201	{	1223	{
1202	#if EV_USE_EVENTFD	1224	# if EV_USE_EVENTFD
1203	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	1225	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1204	if (evfd < 0 && errno == EINVAL)	1226	if (evfd < 0 && errno == EINVAL)
1205	evfd = eventfd (0, 0);	1227	evfd = eventfd (0, 0);
1206		1228
1207	if (evfd >= 0)	1229	if (evfd >= 0)
…		…
1209	evpipe [0] = -1;	1231	evpipe [0] = -1;
1210	fd_intern (evfd); /* doing it twice doesn't hurt */	1232	fd_intern (evfd); /* doing it twice doesn't hurt */
1211	ev_io_set (&pipe_w, evfd, EV_READ);	1233	ev_io_set (&pipe_w, evfd, EV_READ);
1212	}	1234	}
1213	else	1235	else
1214	#endif	1236	# endif
1215	{	1237	{
1216	while (pipe (evpipe))	1238	while (pipe (evpipe))
1217	ev_syserr ("(libev) error creating signal/async pipe");	1239	ev_syserr ("(libev) error creating signal/async pipe");
1218		1240
1219	fd_intern (evpipe [0]);	1241	fd_intern (evpipe [0]);
…		…
1230	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1252	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1231	{	1253	{
1232	if (!*flag)	1254	if (!*flag)
1233	{	1255	{
1234	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;
1235		1258
1236	*flag = 1;	1259	*flag = 1;
1237		1260
1238	#if EV_USE_EVENTFD	1261	#if EV_USE_EVENTFD
1239	if (evfd >= 0)	1262	if (evfd >= 0)
…		…
1241	uint64_t counter = 1;	1264	uint64_t counter = 1;
1242	write (evfd, &counter, sizeof (uint64_t));	1265	write (evfd, &counter, sizeof (uint64_t));
1243	}	1266	}
1244	else	1267	else
1245	#endif	1268	#endif
1246	write (evpipe [1], &old_errno, 1);	1269	write (evpipe [1], &dummy, 1);
1247		1270
1248	errno = old_errno;	1271	errno = old_errno;
1249	}	1272	}
1250	}	1273	}
1251		1274
…		…
1352	break;	1375	break;
1353	}	1376	}
1354	}	1377	}
1355	#endif	1378	#endif
1356		1379
		1380	#endif
		1381
1357	/*****************************************************************************/	1382	/*****************************************************************************/
1358		1383
		1384	#if EV_CHILD_ENABLE
1359	static WL childs [EV_PID_HASHSIZE];	1385	static WL childs [EV_PID_HASHSIZE];
1360
1361	#ifndef _WIN32
1362		1386
1363	static ev_signal childev;	1387	static ev_signal childev;
1364		1388
1365	#ifndef WIFCONTINUED	1389	#ifndef WIFCONTINUED
1366	# define WIFCONTINUED(status) 0	1390	# define WIFCONTINUED(status) 0
…		…
1371	child_reap (EV_P_ int chain, int pid, int status)	1395	child_reap (EV_P_ int chain, int pid, int status)
1372	{	1396	{
1373	ev_child *w;	1397	ev_child *w;
1374	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1398	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1375		1399
1376	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)
1377	{	1401	{
1378	if ((w->pid == pid \|\| !w->pid)	1402	if ((w->pid == pid \|\| !w->pid)
1379	&& (!traced \|\| (w->flags & 1)))	1403	&& (!traced \|\| (w->flags & 1)))
1380	{	1404	{
1381	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 */
…		…
1406	/* 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 */
1407	/* 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 */
1408	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1432	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1409		1433
1410	child_reap (EV_A_ pid, pid, status);	1434	child_reap (EV_A_ pid, pid, status);
1411	if (EV_PID_HASHSIZE > 1)	1435	if ((EV_PID_HASHSIZE) > 1)
1412	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 */
1413	}	1437	}
1414		1438
1415	#endif	1439	#endif
1416		1440
…		…
1505	ev_backend (EV_P)	1529	ev_backend (EV_P)
1506	{	1530	{
1507	return backend;	1531	return backend;
1508	}	1532	}
1509		1533
1510	#if EV_MINIMAL < 2	1534	#if EV_FEATURE_API
1511	unsigned int	1535	unsigned int
1512	ev_loop_count (EV_P)	1536	ev_iteration (EV_P)
1513	{	1537	{
1514	return loop_count;	1538	return loop_count;
1515	}	1539	}
1516		1540
1517	unsigned int	1541	unsigned int
1518	ev_loop_depth (EV_P)	1542	ev_depth (EV_P)
1519	{	1543	{
1520	return loop_depth;	1544	return loop_depth;
1521	}	1545	}
1522		1546
1523	void	1547	void
…		…
1595		1619
1596	ev_rt_now = ev_time ();	1620	ev_rt_now = ev_time ();
1597	mn_now = get_clock ();	1621	mn_now = get_clock ();
1598	now_floor = mn_now;	1622	now_floor = mn_now;
1599	rtmn_diff = ev_rt_now - mn_now;	1623	rtmn_diff = ev_rt_now - mn_now;
1600	#if EV_MINIMAL < 2	1624	#if EV_FEATURE_API
1601	invoke_cb = ev_invoke_pending;	1625	invoke_cb = ev_invoke_pending;
1602	#endif	1626	#endif
1603		1627
1604	io_blocktime = 0.;	1628	io_blocktime = 0.;
1605	timeout_blocktime = 0.;	1629	timeout_blocktime = 0.;
…		…
1635	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1659	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1636	#endif	1660	#endif
1637		1661
1638	ev_prepare_init (&pending_w, pendingcb);	1662	ev_prepare_init (&pending_w, pendingcb);
1639		1663
		1664	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1640	ev_init (&pipe_w, pipecb);	1665	ev_init (&pipe_w, pipecb);
1641	ev_set_priority (&pipe_w, EV_MAXPRI);	1666	ev_set_priority (&pipe_w, EV_MAXPRI);
		1667	#endif
1642	}	1668	}
1643	}	1669	}
1644		1670
1645	/* free up a loop structure */	1671	/* free up a loop structure */
1646	static void noinline	1672	static void noinline
…		…
1764	{	1790	{
1765	EV_WIN32_CLOSE_FD (evpipe [0]);	1791	EV_WIN32_CLOSE_FD (evpipe [0]);
1766	EV_WIN32_CLOSE_FD (evpipe [1]);	1792	EV_WIN32_CLOSE_FD (evpipe [1]);
1767	}	1793	}
1768		1794
		1795	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1769	evpipe_init (EV_A);	1796	evpipe_init (EV_A);
1770	/* now iterate over everything, in case we missed something */	1797	/* now iterate over everything, in case we missed something */
1771	pipecb (EV_A_ &pipe_w, EV_READ);	1798	pipecb (EV_A_ &pipe_w, EV_READ);
		1799	#endif
1772	}	1800	}
1773		1801
1774	postfork = 0;	1802	postfork = 0;
1775	}	1803	}
1776		1804
…		…
1838	verify_watcher (EV_A_ ws [cnt]);	1866	verify_watcher (EV_A_ ws [cnt]);
1839	}	1867	}
1840	}	1868	}
1841	#endif	1869	#endif
1842		1870
1843	#if EV_MINIMAL < 2	1871	#if EV_FEATURE_API
1844	void	1872	void
1845	ev_loop_verify (EV_P)	1873	ev_verify (EV_P)
1846	{	1874	{
1847	#if EV_VERIFY	1875	#if EV_VERIFY
1848	int i;	1876	int i;
1849	WL w;	1877	WL w;
1850		1878
…		…
1889	#if EV_ASYNC_ENABLE	1917	#if EV_ASYNC_ENABLE
1890	assert (asyncmax >= asynccnt);	1918	assert (asyncmax >= asynccnt);
1891	array_verify (EV_A_ (W *)asyncs, asynccnt);	1919	array_verify (EV_A_ (W *)asyncs, asynccnt);
1892	#endif	1920	#endif
1893		1921
		1922	#if EV_PREPARE_ENABLE
1894	assert (preparemax >= preparecnt);	1923	assert (preparemax >= preparecnt);
1895	array_verify (EV_A_ (W *)prepares, preparecnt);	1924	array_verify (EV_A_ (W *)prepares, preparecnt);
		1925	#endif
1896		1926
		1927	#if EV_CHECK_ENABLE
1897	assert (checkmax >= checkcnt);	1928	assert (checkmax >= checkcnt);
1898	array_verify (EV_A_ (W *)checks, checkcnt);	1929	array_verify (EV_A_ (W *)checks, checkcnt);
		1930	#endif
1899		1931
1900	# if 0	1932	# if 0
		1933	#if EV_CHILD_ENABLE
1901	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)
1902	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1935	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1936	#endif
1903	# endif	1937	# endif
1904	#endif	1938	#endif
1905	}	1939	}
1906	#endif	1940	#endif
1907		1941
…		…
1923		1957
1924	loop_init (EV_A_ flags);	1958	loop_init (EV_A_ flags);
1925		1959
1926	if (ev_backend (EV_A))	1960	if (ev_backend (EV_A))
1927	{	1961	{
1928	#ifndef _WIN32	1962	#if EV_CHILD_ENABLE
1929	ev_signal_init (&childev, childcb, SIGCHLD);	1963	ev_signal_init (&childev, childcb, SIGCHLD);
1930	ev_set_priority (&childev, EV_MAXPRI);	1964	ev_set_priority (&childev, EV_MAXPRI);
1931	ev_signal_start (EV_A_ &childev);	1965	ev_signal_start (EV_A_ &childev);
1932	ev_unref (EV_A); /* child watcher should not keep loop alive */	1966	ev_unref (EV_A); /* child watcher should not keep loop alive */
1933	#endif	1967	#endif
…		…
1946	EV_P = ev_default_loop_ptr;	1980	EV_P = ev_default_loop_ptr;
1947	#endif	1981	#endif
1948		1982
1949	ev_default_loop_ptr = 0;	1983	ev_default_loop_ptr = 0;
1950		1984
1951	#ifndef _WIN32	1985	#if EV_CHILD_ENABLE
1952	ev_ref (EV_A); /* child watcher */	1986	ev_ref (EV_A); /* child watcher */
1953	ev_signal_stop (EV_A_ &childev);	1987	ev_signal_stop (EV_A_ &childev);
1954	#endif	1988	#endif
1955		1989
1956	loop_destroy (EV_A);	1990	loop_destroy (EV_A);
…		…
2062	EV_FREQUENT_CHECK;	2096	EV_FREQUENT_CHECK;
2063	feed_reverse (EV_A_ (W)w);	2097	feed_reverse (EV_A_ (W)w);
2064	}	2098	}
2065	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2099	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2066		2100
2067	feed_reverse_done (EV_A_ EV_TIMEOUT);	2101	feed_reverse_done (EV_A_ EV_TIMER);
2068	}	2102	}
2069	}	2103	}
2070		2104
2071	#if EV_PERIODIC_ENABLE	2105	#if EV_PERIODIC_ENABLE
2072	/* make periodics pending */	2106	/* make periodics pending */
…		…
2233	}	2267	}
2234		2268
2235	void	2269	void
2236	ev_loop (EV_P_ int flags)	2270	ev_loop (EV_P_ int flags)
2237	{	2271	{
2238	#if EV_MINIMAL < 2	2272	#if EV_FEATURE_API
2239	++loop_depth;	2273	++loop_depth;
2240	#endif	2274	#endif
2241		2275
2242	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));
2243		2277
…		…
2246	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2280	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2247		2281
2248	do	2282	do
2249	{	2283	{
2250	#if EV_VERIFY >= 2	2284	#if EV_VERIFY >= 2
2251	ev_loop_verify (EV_A);	2285	ev_verify (EV_A);
2252	#endif	2286	#endif
2253		2287
2254	#ifndef _WIN32	2288	#ifndef _WIN32
2255	if (expect_false (curpid)) /* penalise the forking check even more */	2289	if (expect_false (curpid)) /* penalise the forking check even more */
2256	if (expect_false (getpid () != curpid))	2290	if (expect_false (getpid () != curpid))
…		…
2268	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2302	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2269	EV_INVOKE_PENDING;	2303	EV_INVOKE_PENDING;
2270	}	2304	}
2271	#endif	2305	#endif
2272		2306
		2307	#if EV_PREPARE_ENABLE
2273	/* queue prepare watchers (and execute them) */	2308	/* queue prepare watchers (and execute them) */
2274	if (expect_false (preparecnt))	2309	if (expect_false (preparecnt))
2275	{	2310	{
2276	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2311	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2277	EV_INVOKE_PENDING;	2312	EV_INVOKE_PENDING;
2278	}	2313	}
		2314	#endif
2279		2315
2280	if (expect_false (loop_done))	2316	if (expect_false (loop_done))
2281	break;	2317	break;
2282		2318
2283	/* we might have forked, so reify kernel state if necessary */	2319	/* we might have forked, so reify kernel state if necessary */
…		…
2334	waittime -= sleeptime;	2370	waittime -= sleeptime;
2335	}	2371	}
2336	}	2372	}
2337	}	2373	}
2338		2374
2339	#if EV_MINIMAL < 2	2375	#if EV_FEATURE_API
2340	++loop_count;	2376	++loop_count;
2341	#endif	2377	#endif
2342	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2378	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2343	backend_poll (EV_A_ waittime);	2379	backend_poll (EV_A_ waittime);
2344	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2380	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2356	#if EV_IDLE_ENABLE	2392	#if EV_IDLE_ENABLE
2357	/* queue idle watchers unless other events are pending */	2393	/* queue idle watchers unless other events are pending */
2358	idle_reify (EV_A);	2394	idle_reify (EV_A);
2359	#endif	2395	#endif
2360		2396
		2397	#if EV_CHECK_ENABLE
2361	/* queue check watchers, to be executed first */	2398	/* queue check watchers, to be executed first */
2362	if (expect_false (checkcnt))	2399	if (expect_false (checkcnt))
2363	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2400	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2401	#endif
2364		2402
2365	EV_INVOKE_PENDING;	2403	EV_INVOKE_PENDING;
2366	}	2404	}
2367	while (expect_true (	2405	while (expect_true (
2368	activecnt	2406	activecnt
…		…
2371	));	2409	));
2372		2410
2373	if (loop_done == EVUNLOOP_ONE)	2411	if (loop_done == EVUNLOOP_ONE)
2374	loop_done = EVUNLOOP_CANCEL;	2412	loop_done = EVUNLOOP_CANCEL;
2375		2413
2376	#if EV_MINIMAL < 2	2414	#if EV_FEATURE_API
2377	--loop_depth;	2415	--loop_depth;
2378	#endif	2416	#endif
2379	}	2417	}
2380		2418
2381	void	2419	void
…		…
2507		2545
2508	if (expect_false (ev_is_active (w)))	2546	if (expect_false (ev_is_active (w)))
2509	return;	2547	return;
2510		2548
2511	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2549	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2512	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))));
2513		2551
2514	EV_FREQUENT_CHECK;	2552	EV_FREQUENT_CHECK;
2515		2553
2516	ev_start (EV_A_ (W)w, 1);	2554	ev_start (EV_A_ (W)w, 1);
2517	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2555	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2587	timers [active] = timers [timercnt + HEAP0];	2625	timers [active] = timers [timercnt + HEAP0];
2588	adjustheap (timers, timercnt, active);	2626	adjustheap (timers, timercnt, active);
2589	}	2627	}
2590	}	2628	}
2591		2629
2592	EV_FREQUENT_CHECK;
2593
2594	ev_at (w) -= mn_now;	2630	ev_at (w) -= mn_now;
2595		2631
2596	ev_stop (EV_A_ (W)w);	2632	ev_stop (EV_A_ (W)w);
		2633
		2634	EV_FREQUENT_CHECK;
2597	}	2635	}
2598		2636
2599	void noinline	2637	void noinline
2600	ev_timer_again (EV_P_ ev_timer *w)	2638	ev_timer_again (EV_P_ ev_timer *w)
2601	{	2639	{
…		…
2680	periodics [active] = periodics [periodiccnt + HEAP0];	2718	periodics [active] = periodics [periodiccnt + HEAP0];
2681	adjustheap (periodics, periodiccnt, active);	2719	adjustheap (periodics, periodiccnt, active);
2682	}	2720	}
2683	}	2721	}
2684		2722
2685	EV_FREQUENT_CHECK;
2686
2687	ev_stop (EV_A_ (W)w);	2723	ev_stop (EV_A_ (W)w);
		2724
		2725	EV_FREQUENT_CHECK;
2688	}	2726	}
2689		2727
2690	void noinline	2728	void noinline
2691	ev_periodic_again (EV_P_ ev_periodic *w)	2729	ev_periodic_again (EV_P_ ev_periodic *w)
2692	{	2730	{
…		…
2697	#endif	2735	#endif
2698		2736
2699	#ifndef SA_RESTART	2737	#ifndef SA_RESTART
2700	# define SA_RESTART 0	2738	# define SA_RESTART 0
2701	#endif	2739	#endif
		2740
		2741	#if EV_SIGNAL_ENABLE
2702		2742
2703	void noinline	2743	void noinline
2704	ev_signal_start (EV_P_ ev_signal *w)	2744	ev_signal_start (EV_P_ ev_signal *w)
2705	{	2745	{
2706	if (expect_false (ev_is_active (w)))	2746	if (expect_false (ev_is_active (w)))
…		…
2813	}	2853	}
2814		2854
2815	EV_FREQUENT_CHECK;	2855	EV_FREQUENT_CHECK;
2816	}	2856	}
2817		2857
		2858	#endif
		2859
		2860	#if EV_CHILD_ENABLE
		2861
2818	void	2862	void
2819	ev_child_start (EV_P_ ev_child *w)	2863	ev_child_start (EV_P_ ev_child *w)
2820	{	2864	{
2821	#if EV_MULTIPLICITY	2865	#if EV_MULTIPLICITY
2822	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));
…		…
2825	return;	2869	return;
2826		2870
2827	EV_FREQUENT_CHECK;	2871	EV_FREQUENT_CHECK;
2828		2872
2829	ev_start (EV_A_ (W)w, 1);	2873	ev_start (EV_A_ (W)w, 1);
2830	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2874	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2831		2875
2832	EV_FREQUENT_CHECK;	2876	EV_FREQUENT_CHECK;
2833	}	2877	}
2834		2878
2835	void	2879	void
…		…
2839	if (expect_false (!ev_is_active (w)))	2883	if (expect_false (!ev_is_active (w)))
2840	return;	2884	return;
2841		2885
2842	EV_FREQUENT_CHECK;	2886	EV_FREQUENT_CHECK;
2843		2887
2844	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2888	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2845	ev_stop (EV_A_ (W)w);	2889	ev_stop (EV_A_ (W)w);
2846		2890
2847	EV_FREQUENT_CHECK;	2891	EV_FREQUENT_CHECK;
2848	}	2892	}
		2893
		2894	#endif
2849		2895
2850	#if EV_STAT_ENABLE	2896	#if EV_STAT_ENABLE
2851		2897
2852	# ifdef _WIN32	2898	# ifdef _WIN32
2853	# undef lstat	2899	# undef lstat
…		…
2859	#define MIN_STAT_INTERVAL 0.1074891	2905	#define MIN_STAT_INTERVAL 0.1074891
2860		2906
2861	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);
2862		2908
2863	#if EV_USE_INOTIFY	2909	#if EV_USE_INOTIFY
2864	# 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)
2865		2913
2866	static void noinline	2914	static void noinline
2867	infy_add (EV_P_ ev_stat *w)	2915	infy_add (EV_P_ ev_stat *w)
2868	{	2916	{
2869	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);
…		…
2918	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2966	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2919	}	2967	}
2920	}	2968	}
2921		2969
2922	if (w->wd >= 0)	2970	if (w->wd >= 0)
2923	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);
2924		2972
2925	/* now re-arm timer, if required */	2973	/* now re-arm timer, if required */
2926	if (ev_is_active (&w->timer)) ev_ref (EV_A);	2974	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2927	ev_timer_again (EV_A_ &w->timer);	2975	ev_timer_again (EV_A_ &w->timer);
2928	if (ev_is_active (&w->timer)) ev_unref (EV_A);	2976	if (ev_is_active (&w->timer)) ev_unref (EV_A);
…		…
2936		2984
2937	if (wd < 0)	2985	if (wd < 0)
2938	return;	2986	return;
2939		2987
2940	w->wd = -2;	2988	w->wd = -2;
2941	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	2989	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2942	wlist_del (&fs_hash [slot].head, (WL)w);	2990	wlist_del (&fs_hash [slot].head, (WL)w);
2943		2991
2944	/* remove this watcher, if others are watching it, they will rearm */	2992	/* remove this watcher, if others are watching it, they will rearm */
2945	inotify_rm_watch (fs_fd, wd);	2993	inotify_rm_watch (fs_fd, wd);
2946	}	2994	}
…		…
2948	static void noinline	2996	static void noinline
2949	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)
2950	{	2998	{
2951	if (slot < 0)	2999	if (slot < 0)
2952	/* overflow, need to check for all hash slots */	3000	/* overflow, need to check for all hash slots */
2953	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3001	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2954	infy_wd (EV_A_ slot, wd, ev);	3002	infy_wd (EV_A_ slot, wd, ev);
2955	else	3003	else
2956	{	3004	{
2957	WL w_;	3005	WL w_;
2958		3006
2959	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3007	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2960	{	3008	{
2961	ev_stat w = (ev_stat )w_;	3009	ev_stat w = (ev_stat )w_;
2962	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 */
2963		3011
2964	if (w->wd == wd \|\| wd == -1)	3012	if (w->wd == wd \|\| wd == -1)
2965	{	3013	{
2966	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	3014	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2967	{	3015	{
2968	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);
2969	w->wd = -1;	3017	w->wd = -1;
2970	infy_add (EV_A_ w); /* re-add, no matter what */	3018	infy_add (EV_A_ w); /* re-add, no matter what */
2971	}	3019	}
2972		3020
2973	stat_timer_cb (EV_A_ &w->timer, 0);	3021	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2978		3026
2979	static void	3027	static void
2980	infy_cb (EV_P_ ev_io *w, int revents)	3028	infy_cb (EV_P_ ev_io *w, int revents)
2981	{	3029	{
2982	char buf [EV_INOTIFY_BUFSIZE];	3030	char buf [EV_INOTIFY_BUFSIZE];
2983	struct inotify_event ev = (struct inotify_event )buf;
2984	int ofs;	3031	int ofs;
2985	int len = read (fs_fd, buf, sizeof (buf));	3032	int len = read (fs_fd, buf, sizeof (buf));
2986		3033
2987	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);
2988	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;
2989	}	3072	}
2990		3073
2991	inline_size void	3074	inline_size void
2992	check_2625 (EV_P)	3075	ev_check_2625 (EV_P)
2993	{	3076	{
2994	/* kernels < 2.6.25 are borked	3077	/* kernels < 2.6.25 are borked
2995	* 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
2996	*/	3079	*/
2997	struct utsname buf;	3080	if (ev_linux_version () < 0x020619)
2998	int major, minor, micro;
2999
3000	if (uname (&buf))
3001	return;
3002
3003	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3004	return;
3005
3006	if (major < 2
3007	\|\| (major == 2 && minor < 6)
3008	\|\| (major == 2 && minor == 6 && micro < 25))
3009	return;	3081	return;
3010		3082
3011	fs_2625 = 1;	3083	fs_2625 = 1;
3012	}	3084	}
3013		3085
…		…
3028	if (fs_fd != -2)	3100	if (fs_fd != -2)
3029	return;	3101	return;
3030		3102
3031	fs_fd = -1;	3103	fs_fd = -1;
3032		3104
3033	check_2625 (EV_A);	3105	ev_check_2625 (EV_A);
3034		3106
3035	fs_fd = infy_newfd ();	3107	fs_fd = infy_newfd ();
3036		3108
3037	if (fs_fd >= 0)	3109	if (fs_fd >= 0)
3038	{	3110	{
…		…
3063	ev_io_set (&fs_w, fs_fd, EV_READ);	3135	ev_io_set (&fs_w, fs_fd, EV_READ);
3064	ev_io_start (EV_A_ &fs_w);	3136	ev_io_start (EV_A_ &fs_w);
3065	ev_unref (EV_A);	3137	ev_unref (EV_A);
3066	}	3138	}
3067		3139
3068	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3140	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3069	{	3141	{
3070	WL w_ = fs_hash [slot].head;	3142	WL w_ = fs_hash [slot].head;
3071	fs_hash [slot].head = 0;	3143	fs_hash [slot].head = 0;
3072		3144
3073	while (w_)	3145	while (w_)
…		…
3248		3320
3249	EV_FREQUENT_CHECK;	3321	EV_FREQUENT_CHECK;
3250	}	3322	}
3251	#endif	3323	#endif
3252		3324
		3325	#if EV_PREPARE_ENABLE
3253	void	3326	void
3254	ev_prepare_start (EV_P_ ev_prepare *w)	3327	ev_prepare_start (EV_P_ ev_prepare *w)
3255	{	3328	{
3256	if (expect_false (ev_is_active (w)))	3329	if (expect_false (ev_is_active (w)))
3257	return;	3330	return;
…		…
3283		3356
3284	ev_stop (EV_A_ (W)w);	3357	ev_stop (EV_A_ (W)w);
3285		3358
3286	EV_FREQUENT_CHECK;	3359	EV_FREQUENT_CHECK;
3287	}	3360	}
		3361	#endif
3288		3362
		3363	#if EV_CHECK_ENABLE
3289	void	3364	void
3290	ev_check_start (EV_P_ ev_check *w)	3365	ev_check_start (EV_P_ ev_check *w)
3291	{	3366	{
3292	if (expect_false (ev_is_active (w)))	3367	if (expect_false (ev_is_active (w)))
3293	return;	3368	return;
…		…
3319		3394
3320	ev_stop (EV_A_ (W)w);	3395	ev_stop (EV_A_ (W)w);
3321		3396
3322	EV_FREQUENT_CHECK;	3397	EV_FREQUENT_CHECK;
3323	}	3398	}
		3399	#endif
3324		3400
3325	#if EV_EMBED_ENABLE	3401	#if EV_EMBED_ENABLE
3326	void noinline	3402	void noinline
3327	ev_embed_sweep (EV_P_ ev_embed *w)	3403	ev_embed_sweep (EV_P_ ev_embed *w)
3328	{	3404	{
…		…
3423		3499
3424	ev_io_stop (EV_A_ &w->io);	3500	ev_io_stop (EV_A_ &w->io);
3425	ev_prepare_stop (EV_A_ &w->prepare);	3501	ev_prepare_stop (EV_A_ &w->prepare);
3426	ev_fork_stop (EV_A_ &w->fork);	3502	ev_fork_stop (EV_A_ &w->fork);
3427		3503
		3504	ev_stop (EV_A_ (W)w);
		3505
3428	EV_FREQUENT_CHECK;	3506	EV_FREQUENT_CHECK;
3429	}	3507	}
3430	#endif	3508	#endif
3431		3509
3432	#if EV_FORK_ENABLE	3510	#if EV_FORK_ENABLE
…		…
3558	{	3636	{
3559	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	3637	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
3560		3638
3561	if (expect_false (!once))	3639	if (expect_false (!once))
3562	{	3640	{
3563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	3641	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMER, arg);
3564	return;	3642	return;
3565	}	3643	}
3566		3644
3567	once->cb = cb;	3645	once->cb = cb;
3568	once->arg = arg;	3646	once->arg = arg;
…		…
3655	if (types & EV_ASYNC)	3733	if (types & EV_ASYNC)
3656	for (i = asynccnt; i--; )	3734	for (i = asynccnt; i--; )
3657	cb (EV_A_ EV_ASYNC, asyncs [i]);	3735	cb (EV_A_ EV_ASYNC, asyncs [i]);
3658	#endif	3736	#endif
3659		3737
		3738	#if EV_PREPARE_ENABLE
3660	if (types & EV_PREPARE)	3739	if (types & EV_PREPARE)
3661	for (i = preparecnt; i--; )	3740	for (i = preparecnt; i--; )
3662	#if EV_EMBED_ENABLE	3741	# if EV_EMBED_ENABLE
3663	if (ev_cb (prepares [i]) != embed_prepare_cb)	3742	if (ev_cb (prepares [i]) != embed_prepare_cb)
3664	#endif	3743	# endif
3665	cb (EV_A_ EV_PREPARE, prepares [i]);	3744	cb (EV_A_ EV_PREPARE, prepares [i]);
		3745	#endif
3666		3746
		3747	#if EV_CHECK_ENABLE
3667	if (types & EV_CHECK)	3748	if (types & EV_CHECK)
3668	for (i = checkcnt; i--; )	3749	for (i = checkcnt; i--; )
3669	cb (EV_A_ EV_CHECK, checks [i]);	3750	cb (EV_A_ EV_CHECK, checks [i]);
		3751	#endif
3670		3752
		3753	#if EV_SIGNAL_ENABLE
3671	if (types & EV_SIGNAL)	3754	if (types & EV_SIGNAL)
3672	for (i = 0; i < EV_NSIG - 1; ++i)	3755	for (i = 0; i < EV_NSIG - 1; ++i)
3673	for (wl = signals [i].head; wl; )	3756	for (wl = signals [i].head; wl; )
3674	{	3757	{
3675	wn = wl->next;	3758	wn = wl->next;
3676	cb (EV_A_ EV_SIGNAL, wl);	3759	cb (EV_A_ EV_SIGNAL, wl);
3677	wl = wn;	3760	wl = wn;
3678	}	3761	}
		3762	#endif
3679		3763
		3764	#if EV_CHILD_ENABLE
3680	if (types & EV_CHILD)	3765	if (types & EV_CHILD)
3681	for (i = EV_PID_HASHSIZE; i--; )	3766	for (i = (EV_PID_HASHSIZE); i--; )
3682	for (wl = childs [i]; wl; )	3767	for (wl = childs [i]; wl; )
3683	{	3768	{
3684	wn = wl->next;	3769	wn = wl->next;
3685	cb (EV_A_ EV_CHILD, wl);	3770	cb (EV_A_ EV_CHILD, wl);
3686	wl = wn;	3771	wl = wn;
3687	}	3772	}
		3773	#endif
3688	/* EV_STAT 0x00001000 /* stat data changed */	3774	/* EV_STAT 0x00001000 /* stat data changed */
3689	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3775	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3690	}	3776	}
3691	#endif	3777	#endif
3692		3778

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Comparing libev/ev.c (file contents): Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs. Revision 1.341 by root, Tue Mar 16 20:48:29 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.325 by root, Sun Jan 24 12:31:55 2010 UTC vs.
Revision 1.341 by root, Tue Mar 16 20:48:29 2010 UTC