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

Comparing libev/ev.c (file contents):
Revision 1.316 by root, Fri Sep 18 21:02:12 2009 UTC vs.
Revision 1.350 by root, Sat Oct 16 00:59:56 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	*
77	# ifndef EV_USE_REALTIME	77	# ifndef EV_USE_REALTIME
78	# define EV_USE_REALTIME 0	78	# define EV_USE_REALTIME 0
79	# endif	79	# endif
80	# endif	80	# endif
81		81
		82	# if HAVE_NANOSLEEP
82	# ifndef EV_USE_NANOSLEEP	83	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	84	# define EV_USE_NANOSLEEP EV_FEATURE_OS
		85	# endif
85	# else	86	# else
		87	# undef EV_USE_NANOSLEEP
86	# define EV_USE_NANOSLEEP 0	88	# define EV_USE_NANOSLEEP 0
		89	# endif
		90
		91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		92	# ifndef EV_USE_SELECT
		93	# define EV_USE_SELECT EV_FEATURE_BACKENDS
87	# endif	94	# endif
		95	# else
		96	# undef EV_USE_SELECT
		97	# define EV_USE_SELECT 0
88	# endif	98	# endif
89		99
		100	# if HAVE_POLL && HAVE_POLL_H
90	# ifndef EV_USE_SELECT	101	# ifndef EV_USE_POLL
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	102	# define EV_USE_POLL EV_FEATURE_BACKENDS
92	# define EV_USE_SELECT 1
93	# else
94	# define EV_USE_SELECT 0
95	# endif	103	# endif
96	# endif
97
98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1
101	# else	104	# else
		105	# undef EV_USE_POLL
102	# define EV_USE_POLL 0	106	# define EV_USE_POLL 0
103	# endif
104	# endif	107	# endif
105		108
106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	109	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	110	# ifndef EV_USE_EPOLL
109	# else	111	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110	# define EV_USE_EPOLL 0
111	# endif	112	# endif
		113	# else
		114	# undef EV_USE_EPOLL
		115	# define EV_USE_EPOLL 0
112	# endif	116	# endif
113		117
		118	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114	# ifndef EV_USE_KQUEUE	119	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	120	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116	# define EV_USE_KQUEUE 1
117	# else
118	# define EV_USE_KQUEUE 0
119	# endif	121	# endif
		122	# else
		123	# undef EV_USE_KQUEUE
		124	# define EV_USE_KQUEUE 0
120	# endif	125	# endif
121		126
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	127	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	128	# ifndef EV_USE_PORT
125	# else	129	# define EV_USE_PORT EV_FEATURE_BACKENDS
126	# define EV_USE_PORT 0
127	# endif	130	# endif
		131	# else
		132	# undef EV_USE_PORT
		133	# define EV_USE_PORT 0
128	# endif	134	# endif
129		135
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	136	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	137	# ifndef EV_USE_INOTIFY
133	# else
134	# define EV_USE_INOTIFY 0	138	# define EV_USE_INOTIFY EV_FEATURE_OS
135	# endif	139	# endif
		140	# else
		141	# undef EV_USE_INOTIFY
		142	# define EV_USE_INOTIFY 0
136	# endif	143	# endif
137		144
138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	145	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	146	# ifndef EV_USE_SIGNALFD
141	# else
142	# define EV_USE_SIGNALFD 0	147	# define EV_USE_SIGNALFD EV_FEATURE_OS
143	# endif	148	# endif
		149	# else
		150	# undef EV_USE_SIGNALFD
		151	# define EV_USE_SIGNALFD 0
144	# endif	152	# endif
145		153
		154	# if HAVE_EVENTFD
146	# ifndef EV_USE_EVENTFD	155	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	156	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else
150	# define EV_USE_EVENTFD 0
151	# endif	157	# endif
		158	# else
		159	# undef EV_USE_EVENTFD
		160	# define EV_USE_EVENTFD 0
152	# endif	161	# endif
153		162
154	#endif	163	#endif
155		164
156	#include <math.h>	165	#include <math.h>
157	#include <stdlib.h>	166	#include <stdlib.h>
		167	#include <string.h>
158	#include <fcntl.h>	168	#include <fcntl.h>
159	#include <stddef.h>	169	#include <stddef.h>
160		170
161	#include <stdio.h>	171	#include <stdio.h>
162		172
163	#include <assert.h>	173	#include <assert.h>
164	#include <errno.h>	174	#include <errno.h>
165	#include <sys/types.h>	175	#include <sys/types.h>
166	#include <time.h>	176	#include <time.h>
		177	#include <limits.h>
167		178
168	#include <signal.h>	179	#include <signal.h>
169		180
170	#ifdef EV_H	181	#ifdef EV_H
171	# include EV_H	182	# include EV_H
…		…
182	# define WIN32_LEAN_AND_MEAN	193	# define WIN32_LEAN_AND_MEAN
183	# include <windows.h>	194	# include <windows.h>
184	# ifndef EV_SELECT_IS_WINSOCKET	195	# ifndef EV_SELECT_IS_WINSOCKET
185	# define EV_SELECT_IS_WINSOCKET 1	196	# define EV_SELECT_IS_WINSOCKET 1
186	# endif	197	# endif
		198	# undef EV_AVOID_STDIO
187	#endif	199	#endif
		200
		201	/* OS X, in its infinite idiocy, actually HARDCODES
		202	* a limit of 1024 into their select. Where people have brains,
		203	* OS X engineers apparently have a vacuum. Or maybe they were
		204	* ordered to have a vacuum, or they do anything for money.
		205	* This might help. Or not.
		206	*/
		207	#define _DARWIN_UNLIMITED_SELECT 1
188		208
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	209	/* this block tries to deduce configuration from header-defined symbols and defaults */
190		210
191	/* try to deduce the maximum number of signals on this platform */	211	/* try to deduce the maximum number of signals on this platform */
192	#if defined (EV_NSIG)	212	#if defined (EV_NSIG)
…		…
204	#elif defined (MAXSIG)	224	#elif defined (MAXSIG)
205	# define EV_NSIG (MAXSIG+1)	225	# define EV_NSIG (MAXSIG+1)
206	#elif defined (MAX_SIG)	226	#elif defined (MAX_SIG)
207	# define EV_NSIG (MAX_SIG+1)	227	# define EV_NSIG (MAX_SIG+1)
208	#elif defined (SIGARRAYSIZE)	228	#elif defined (SIGARRAYSIZE)
209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	229	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210	#elif defined (_sys_nsig)	230	#elif defined (_sys_nsig)
211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	231	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212	#else	232	#else
213	# error "unable to find value for NSIG, please report"	233	# error "unable to find value for NSIG, please report"
214	/* to make it compile regardless, just remove the above line */	234	/* to make it compile regardless, just remove the above line, */
		235	/* but consider reporting it, too! :) */
215	# define EV_NSIG 65	236	# define EV_NSIG 65
216	#endif	237	#endif
217		238
218	#ifndef EV_USE_CLOCK_SYSCALL	239	#ifndef EV_USE_CLOCK_SYSCALL
219	# if __linux && __GLIBC__ >= 2	240	# if __linux && __GLIBC__ >= 2
220	# define EV_USE_CLOCK_SYSCALL 1	241	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221	# else	242	# else
222	# define EV_USE_CLOCK_SYSCALL 0	243	# define EV_USE_CLOCK_SYSCALL 0
223	# endif	244	# endif
224	#endif	245	#endif
225		246
226	#ifndef EV_USE_MONOTONIC	247	#ifndef EV_USE_MONOTONIC
227	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	248	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228	# define EV_USE_MONOTONIC 1	249	# define EV_USE_MONOTONIC EV_FEATURE_OS
229	# else	250	# else
230	# define EV_USE_MONOTONIC 0	251	# define EV_USE_MONOTONIC 0
231	# endif	252	# endif
232	#endif	253	#endif
233		254
…		…
235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	256	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236	#endif	257	#endif
237		258
238	#ifndef EV_USE_NANOSLEEP	259	#ifndef EV_USE_NANOSLEEP
239	# if _POSIX_C_SOURCE >= 199309L	260	# if _POSIX_C_SOURCE >= 199309L
240	# define EV_USE_NANOSLEEP 1	261	# define EV_USE_NANOSLEEP EV_FEATURE_OS
241	# else	262	# else
242	# define EV_USE_NANOSLEEP 0	263	# define EV_USE_NANOSLEEP 0
243	# endif	264	# endif
244	#endif	265	#endif
245		266
246	#ifndef EV_USE_SELECT	267	#ifndef EV_USE_SELECT
247	# define EV_USE_SELECT 1	268	# define EV_USE_SELECT EV_FEATURE_BACKENDS
248	#endif	269	#endif
249		270
250	#ifndef EV_USE_POLL	271	#ifndef EV_USE_POLL
251	# ifdef _WIN32	272	# ifdef _WIN32
252	# define EV_USE_POLL 0	273	# define EV_USE_POLL 0
253	# else	274	# else
254	# define EV_USE_POLL 1	275	# define EV_USE_POLL EV_FEATURE_BACKENDS
255	# endif	276	# endif
256	#endif	277	#endif
257		278
258	#ifndef EV_USE_EPOLL	279	#ifndef EV_USE_EPOLL
259	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	280	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260	# define EV_USE_EPOLL 1	281	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261	# else	282	# else
262	# define EV_USE_EPOLL 0	283	# define EV_USE_EPOLL 0
263	# endif	284	# endif
264	#endif	285	#endif
265		286
…		…
271	# define EV_USE_PORT 0	292	# define EV_USE_PORT 0
272	#endif	293	#endif
273		294
274	#ifndef EV_USE_INOTIFY	295	#ifndef EV_USE_INOTIFY
275	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	296	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276	# define EV_USE_INOTIFY 1	297	# define EV_USE_INOTIFY EV_FEATURE_OS
277	# else	298	# else
278	# define EV_USE_INOTIFY 0	299	# define EV_USE_INOTIFY 0
279	# endif	300	# endif
280	#endif	301	#endif
281		302
282	#ifndef EV_PID_HASHSIZE	303	#ifndef EV_PID_HASHSIZE
283	# if EV_MINIMAL	304	# 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	305	#endif
289		306
290	#ifndef EV_INOTIFY_HASHSIZE	307	#ifndef EV_INOTIFY_HASHSIZE
291	# if EV_MINIMAL	308	# 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	309	#endif
297		310
298	#ifndef EV_USE_EVENTFD	311	#ifndef EV_USE_EVENTFD
299	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	312	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300	# define EV_USE_EVENTFD 1	313	# define EV_USE_EVENTFD EV_FEATURE_OS
301	# else	314	# else
302	# define EV_USE_EVENTFD 0	315	# define EV_USE_EVENTFD 0
303	# endif	316	# endif
304	#endif	317	#endif
305		318
306	#ifndef EV_USE_SIGNALFD	319	#ifndef EV_USE_SIGNALFD
307	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	320	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308	# define EV_USE_SIGNALFD 1	321	# define EV_USE_SIGNALFD EV_FEATURE_OS
309	# else	322	# else
310	# define EV_USE_SIGNALFD 0	323	# define EV_USE_SIGNALFD 0
311	# endif	324	# endif
312	#endif	325	#endif
313		326
…		…
316	# define EV_USE_4HEAP 1	329	# define EV_USE_4HEAP 1
317	# define EV_HEAP_CACHE_AT 1	330	# define EV_HEAP_CACHE_AT 1
318	#endif	331	#endif
319		332
320	#ifndef EV_VERIFY	333	#ifndef EV_VERIFY
321	# define EV_VERIFY !EV_MINIMAL	334	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322	#endif	335	#endif
323		336
324	#ifndef EV_USE_4HEAP	337	#ifndef EV_USE_4HEAP
325	# define EV_USE_4HEAP !EV_MINIMAL	338	# define EV_USE_4HEAP EV_FEATURE_DATA
326	#endif	339	#endif
327		340
328	#ifndef EV_HEAP_CACHE_AT	341	#ifndef EV_HEAP_CACHE_AT
329	# define EV_HEAP_CACHE_AT !EV_MINIMAL	342	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330	#endif	343	#endif
331		344
332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	345	/* 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. */	346	/* which makes programs even slower. might work on other unices, too. */
334	#if EV_USE_CLOCK_SYSCALL	347	#if EV_USE_CLOCK_SYSCALL
…		…
342	# define EV_USE_CLOCK_SYSCALL 0	355	# define EV_USE_CLOCK_SYSCALL 0
343	# endif	356	# endif
344	#endif	357	#endif
345		358
346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	359	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
		360
		361	#ifdef _AIX
		362	/* AIX has a completely broken poll.h header */
		363	# undef EV_USE_POLL
		364	# define EV_USE_POLL 0
		365	#endif
347		366
348	#ifndef CLOCK_MONOTONIC	367	#ifndef CLOCK_MONOTONIC
349	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
350	# define EV_USE_MONOTONIC 0	369	# define EV_USE_MONOTONIC 0
351	#endif	370	#endif
…		…
395	# endif	414	# endif
396	# endif	415	# endif
397	# ifdef __cplusplus	416	# ifdef __cplusplus
398	extern "C" {	417	extern "C" {
399	# endif	418	# endif
400	int eventfd (unsigned int initval, int flags);	419	int (eventfd) (unsigned int initval, int flags);
401	# ifdef __cplusplus	420	# ifdef __cplusplus
402	}	421	}
403	# endif	422	# endif
404	#endif	423	#endif
405		424
…		…
429	# ifdef __cplusplus	448	# ifdef __cplusplus
430	}	449	}
431	# endif	450	# endif
432	#endif	451	#endif
433		452
434
435	/**/	453	/**/
436		454
437	#if EV_VERIFY >= 3	455	#if EV_VERIFY >= 3
438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	456	# define EV_FREQUENT_CHECK ev_verify (EV_A)
439	#else	457	#else
440	# define EV_FREQUENT_CHECK do { } while (0)	458	# define EV_FREQUENT_CHECK do { } while (0)
441	#endif	459	#endif
442		460
443	/*	461	/*
…		…
451	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	469	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
452		470
453	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	471	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
454	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	472	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
455		473
		474	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
		475	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
		476
456	#if __GNUC__ >= 4	477	#if __GNUC__ >= 4
457	# define expect(expr,value) __builtin_expect ((expr),(value))	478	# define expect(expr,value) __builtin_expect ((expr),(value))
458	# define noinline __attribute__ ((noinline))	479	# define noinline __attribute__ ((noinline))
459	#else	480	#else
460	# define expect(expr,value) (expr)	481	# define expect(expr,value) (expr)
…		…
466		487
467	#define expect_false(expr) expect ((expr) != 0, 0)	488	#define expect_false(expr) expect ((expr) != 0, 0)
468	#define expect_true(expr) expect ((expr) != 0, 1)	489	#define expect_true(expr) expect ((expr) != 0, 1)
469	#define inline_size static inline	490	#define inline_size static inline
470		491
471	#if EV_MINIMAL	492	#if EV_FEATURE_CODE
		493	# define inline_speed static inline
		494	#else
472	# define inline_speed static noinline	495	# define inline_speed static noinline
473	#else
474	# define inline_speed static inline
475	#endif	496	#endif
476		497
477	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	498	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
478		499
479	#if EV_MINPRI == EV_MAXPRI	500	#if EV_MINPRI == EV_MAXPRI
…		…
492	#define ev_active(w) ((W)(w))->active	513	#define ev_active(w) ((W)(w))->active
493	#define ev_at(w) ((WT)(w))->at	514	#define ev_at(w) ((WT)(w))->at
494		515
495	#if EV_USE_REALTIME	516	#if EV_USE_REALTIME
496	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	517	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
497	/* giving it a reasonably high chance of working on typical architetcures */	518	/* giving it a reasonably high chance of working on typical architectures */
498	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */	519	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
499	#endif	520	#endif
500		521
501	#if EV_USE_MONOTONIC	522	#if EV_USE_MONOTONIC
502	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	523	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
…		…
504		525
505	#ifndef EV_FD_TO_WIN32_HANDLE	526	#ifndef EV_FD_TO_WIN32_HANDLE
506	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)	527	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
507	#endif	528	#endif
508	#ifndef EV_WIN32_HANDLE_TO_FD	529	#ifndef EV_WIN32_HANDLE_TO_FD
509	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)	530	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
510	#endif	531	#endif
511	#ifndef EV_WIN32_CLOSE_FD	532	#ifndef EV_WIN32_CLOSE_FD
512	# define EV_WIN32_CLOSE_FD(fd) close (fd)	533	# define EV_WIN32_CLOSE_FD(fd) close (fd)
513	#endif	534	#endif
514		535
515	#ifdef _WIN32	536	#ifdef _WIN32
516	# include "ev_win32.c"	537	# include "ev_win32.c"
517	#endif	538	#endif
518		539
519	/*****************************************************************************/	540	/*****************************************************************************/
		541
		542	#if EV_AVOID_STDIO
		543	static void noinline
		544	ev_printerr (const char *msg)
		545	{
		546	write (STDERR_FILENO, msg, strlen (msg));
		547	}
		548	#endif
520		549
521	static void (syserr_cb)(const char msg);	550	static void (syserr_cb)(const char msg);
522		551
523	void	552	void
524	ev_set_syserr_cb (void (cb)(const char msg))	553	ev_set_syserr_cb (void (cb)(const char msg))
…		…
534		563
535	if (syserr_cb)	564	if (syserr_cb)
536	syserr_cb (msg);	565	syserr_cb (msg);
537	else	566	else
538	{	567	{
		568	#if EV_AVOID_STDIO
		569	const char *err = strerror (errno);
		570
		571	ev_printerr (msg);
		572	ev_printerr (": ");
		573	ev_printerr (err);
		574	ev_printerr ("\n");
		575	#else
539	perror (msg);	576	perror (msg);
		577	#endif
540	abort ();	578	abort ();
541	}	579	}
542	}	580	}
543		581
544	static void *	582	static void *
545	ev_realloc_emul (void *ptr, long size)	583	ev_realloc_emul (void *ptr, long size)
546	{	584	{
		585	#if __GLIBC__
		586	return realloc (ptr, size);
		587	#else
547	/* some systems, notably openbsd and darwin, fail to properly	588	/* some systems, notably openbsd and darwin, fail to properly
548	* implement realloc (x, 0) (as required by both ansi c-98 and	589	* implement realloc (x, 0) (as required by both ansi c-89 and
549	* the single unix specification, so work around them here.	590	* the single unix specification, so work around them here.
550	*/	591	*/
551		592
552	if (size)	593	if (size)
553	return realloc (ptr, size);	594	return realloc (ptr, size);
554		595
555	free (ptr);	596	free (ptr);
556	return 0;	597	return 0;
		598	#endif
557	}	599	}
558		600
559	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	601	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
560		602
561	void	603	void
…		…
569	{	611	{
570	ptr = alloc (ptr, size);	612	ptr = alloc (ptr, size);
571		613
572	if (!ptr && size)	614	if (!ptr && size)
573	{	615	{
		616	#if EV_AVOID_STDIO
		617	ev_printerr ("libev: memory allocation failed, aborting.\n");
		618	#else
574	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	619	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		620	#endif
575	abort ();	621	abort ();
576	}	622	}
577		623
578	return ptr;	624	return ptr;
579	}	625	}
…		…
661		707
662	static int ev_default_loop_ptr;	708	static int ev_default_loop_ptr;
663		709
664	#endif	710	#endif
665		711
666	#if EV_MINIMAL < 2	712	#if EV_FEATURE_API
667	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	713	# 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)	714	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
669	# define EV_INVOKE_PENDING invoke_cb (EV_A)	715	# define EV_INVOKE_PENDING invoke_cb (EV_A)
670	#else	716	#else
671	# define EV_RELEASE_CB (void)0	717	# define EV_RELEASE_CB (void)0
…		…
725	if (delay > 0.)	771	if (delay > 0.)
726	{	772	{
727	#if EV_USE_NANOSLEEP	773	#if EV_USE_NANOSLEEP
728	struct timespec ts;	774	struct timespec ts;
729		775
730	ts.tv_sec = (time_t)delay;	776	EV_TS_SET (ts, delay);
731	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
732
733	nanosleep (&ts, 0);	777	nanosleep (&ts, 0);
734	#elif defined(_WIN32)	778	#elif defined(_WIN32)
735	Sleep ((unsigned long)(delay * 1e3));	779	Sleep ((unsigned long)(delay * 1e3));
736	#else	780	#else
737	struct timeval tv;	781	struct timeval tv;
738		782
739	tv.tv_sec = (time_t)delay;
740	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
741
742	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	783	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
743	/* something not guaranteed by newer posix versions, but guaranteed */	784	/* something not guaranteed by newer posix versions, but guaranteed */
744	/* by older ones */	785	/* by older ones */
		786	EV_TV_SET (tv, delay);
745	select (0, 0, 0, 0, &tv);	787	select (0, 0, 0, 0, &tv);
746	#endif	788	#endif
747	}	789	}
748	}	790	}
749		791
750	/*****************************************************************************/	792	/*****************************************************************************/
751		793
752	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /	794	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /
753		795
754	/* find a suitable new size for the given array, */	796	/* find a suitable new size for the given array, */
755	/* hopefully by rounding to a ncie-to-malloc size */	797	/* hopefully by rounding to a nice-to-malloc size */
756	inline_size int	798	inline_size int
757	array_nextsize (int elem, int cur, int cnt)	799	array_nextsize (int elem, int cur, int cnt)
758	{	800	{
759	int ncur = cur + 1;	801	int ncur = cur + 1;
760		802
…		…
856	}	898	}
857		899
858	/*****************************************************************************/	900	/*****************************************************************************/
859		901
860	inline_speed void	902	inline_speed void
861	fd_event_nc (EV_P_ int fd, int revents)	903	fd_event_nocheck (EV_P_ int fd, int revents)
862	{	904	{
863	ANFD *anfd = anfds + fd;	905	ANFD *anfd = anfds + fd;
864	ev_io *w;	906	ev_io *w;
865		907
866	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	908	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
878	fd_event (EV_P_ int fd, int revents)	920	fd_event (EV_P_ int fd, int revents)
879	{	921	{
880	ANFD *anfd = anfds + fd;	922	ANFD *anfd = anfds + fd;
881		923
882	if (expect_true (!anfd->reify))	924	if (expect_true (!anfd->reify))
883	fd_event_nc (EV_A_ fd, revents);	925	fd_event_nocheck (EV_A_ fd, revents);
884	}	926	}
885		927
886	void	928	void
887	ev_feed_fd_event (EV_P_ int fd, int revents)	929	ev_feed_fd_event (EV_P_ int fd, int revents)
888	{	930	{
889	if (fd >= 0 && fd < anfdmax)	931	if (fd >= 0 && fd < anfdmax)
890	fd_event_nc (EV_A_ fd, revents);	932	fd_event_nocheck (EV_A_ fd, revents);
891	}	933	}
892		934
893	/* make sure the external fd watch events are in-sync */	935	/* make sure the external fd watch events are in-sync */
894	/* with the kernel/libev internal state */	936	/* with the kernel/libev internal state */
895	inline_size void	937	inline_size void
…		…
901	{	943	{
902	int fd = fdchanges [i];	944	int fd = fdchanges [i];
903	ANFD *anfd = anfds + fd;	945	ANFD *anfd = anfds + fd;
904	ev_io *w;	946	ev_io *w;
905		947
906	unsigned char events = 0;	948	unsigned char o_events = anfd->events;
		949	unsigned char o_reify = anfd->reify;
907		950
908	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	951	anfd->reify = 0;
909	events \|= (unsigned char)w->events;
910		952
911	#if EV_SELECT_IS_WINSOCKET	953	#if EV_SELECT_IS_WINSOCKET
912	if (events)	954	if (o_reify & EV__IOFDSET)
913	{	955	{
914	unsigned long arg;	956	unsigned long arg;
915	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	957	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
916	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	958	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
917	}	959	}
918	#endif	960	#endif
919		961
		962	/if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation /
920	{	963	{
921	unsigned char o_events = anfd->events;
922	unsigned char o_reify = anfd->reify;
923
924	anfd->reify = 0;
925	anfd->events = events;	964	anfd->events = 0;
926		965
927	if (o_events != events \|\| o_reify & EV__IOFDSET)	966	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
		967	anfd->events \|= (unsigned char)w->events;
		968
		969	if (o_events !=anfd-> events)
		970	o_reify = EV__IOFDSET; /* actually \|= */
		971	}
		972
		973	if (o_reify & EV__IOFDSET)
928	backend_modify (EV_A_ fd, o_events, events);	974	backend_modify (EV_A_ fd, o_events, anfd->events);
929	}
930	}	975	}
931		976
932	fdchangecnt = 0;	977	fdchangecnt = 0;
933	}	978	}
934		979
…		…
958	ev_io_stop (EV_A_ w);	1003	ev_io_stop (EV_A_ w);
959	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	1004	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
960	}	1005	}
961	}	1006	}
962		1007
963	/* check whether the given fd is atcually valid, for error recovery */	1008	/* check whether the given fd is actually valid, for error recovery */
964	inline_size int	1009	inline_size int
965	fd_valid (int fd)	1010	fd_valid (int fd)
966	{	1011	{
967	#ifdef _WIN32	1012	#ifdef _WIN32
968	return _get_osfhandle (fd) != -1;	1013	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
969	#else	1014	#else
970	return fcntl (fd, F_GETFD) != -1;	1015	return fcntl (fd, F_GETFD) != -1;
971	#endif	1016	#endif
972	}	1017	}
973		1018
…		…
1010	anfds [fd].emask = 0;	1055	anfds [fd].emask = 0;
1011	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1056	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
1012	}	1057	}
1013	}	1058	}
1014		1059
		1060	/* used to prepare libev internal fd's */
		1061	/* this is not fork-safe */
		1062	inline_speed void
		1063	fd_intern (int fd)
		1064	{
		1065	#ifdef _WIN32
		1066	unsigned long arg = 1;
		1067	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1068	#else
		1069	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1070	fcntl (fd, F_SETFL, O_NONBLOCK);
		1071	#endif
		1072	}
		1073
1015	/*****************************************************************************/	1074	/*****************************************************************************/
1016		1075
1017	/*	1076	/*
1018	* the heap functions want a real array index. array index 0 uis guaranteed to not	1077	* the heap functions want a real array index. array index 0 is guaranteed to not
1019	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1078	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1020	* the branching factor of the d-tree.	1079	* the branching factor of the d-tree.
1021	*/	1080	*/
1022		1081
1023	/*	1082	/*
…		…
1171		1230
1172	static ANSIG signals [EV_NSIG - 1];	1231	static ANSIG signals [EV_NSIG - 1];
1173		1232
1174	/*****************************************************************************/	1233	/*****************************************************************************/
1175		1234
1176	/* used to prepare libev internal fd's */	1235	#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		1236
1190	static void noinline	1237	static void noinline
1191	evpipe_init (EV_P)	1238	evpipe_init (EV_P)
1192	{	1239	{
1193	if (!ev_is_active (&pipe_w))	1240	if (!ev_is_active (&pipe_w))
1194	{	1241	{
1195	#if EV_USE_EVENTFD	1242	# if EV_USE_EVENTFD
1196	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	1243	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1197	if (evfd < 0 && errno == EINVAL)	1244	if (evfd < 0 && errno == EINVAL)
1198	evfd = eventfd (0, 0);	1245	evfd = eventfd (0, 0);
1199		1246
1200	if (evfd >= 0)	1247	if (evfd >= 0)
…		…
1202	evpipe [0] = -1;	1249	evpipe [0] = -1;
1203	fd_intern (evfd); /* doing it twice doesn't hurt */	1250	fd_intern (evfd); /* doing it twice doesn't hurt */
1204	ev_io_set (&pipe_w, evfd, EV_READ);	1251	ev_io_set (&pipe_w, evfd, EV_READ);
1205	}	1252	}
1206	else	1253	else
1207	#endif	1254	# endif
1208	{	1255	{
1209	while (pipe (evpipe))	1256	while (pipe (evpipe))
1210	ev_syserr ("(libev) error creating signal/async pipe");	1257	ev_syserr ("(libev) error creating signal/async pipe");
1211		1258
1212	fd_intern (evpipe [0]);	1259	fd_intern (evpipe [0]);
…		…
1223	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1270	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1224	{	1271	{
1225	if (!*flag)	1272	if (!*flag)
1226	{	1273	{
1227	int old_errno = errno; /* save errno because write might clobber it */	1274	int old_errno = errno; /* save errno because write might clobber it */
		1275	char dummy;
1228		1276
1229	*flag = 1;	1277	*flag = 1;
1230		1278
1231	#if EV_USE_EVENTFD	1279	#if EV_USE_EVENTFD
1232	if (evfd >= 0)	1280	if (evfd >= 0)
…		…
1234	uint64_t counter = 1;	1282	uint64_t counter = 1;
1235	write (evfd, &counter, sizeof (uint64_t));	1283	write (evfd, &counter, sizeof (uint64_t));
1236	}	1284	}
1237	else	1285	else
1238	#endif	1286	#endif
		1287	/* win32 people keep sending patches that change this write() to send() */
		1288	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1289	/* so when you think this write should be a send instead, please find out */
		1290	/* where your send() is from - it's definitely not the microsoft send, and */
		1291	/* tell me. thank you. */
1239	write (evpipe [1], &old_errno, 1);	1292	write (evpipe [1], &dummy, 1);
1240		1293
1241	errno = old_errno;	1294	errno = old_errno;
1242	}	1295	}
1243	}	1296	}
1244		1297
…		…
1257	}	1310	}
1258	else	1311	else
1259	#endif	1312	#endif
1260	{	1313	{
1261	char dummy;	1314	char dummy;
		1315	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1262	read (evpipe [0], &dummy, 1);	1316	read (evpipe [0], &dummy, 1);
1263	}	1317	}
1264		1318
1265	if (sig_pending)	1319	if (sig_pending)
1266	{	1320	{
…		…
1293	{	1347	{
1294	#if EV_MULTIPLICITY	1348	#if EV_MULTIPLICITY
1295	EV_P = signals [signum - 1].loop;	1349	EV_P = signals [signum - 1].loop;
1296	#endif	1350	#endif
1297		1351
1298	#if _WIN32	1352	#ifdef _WIN32
1299	signal (signum, ev_sighandler);	1353	signal (signum, ev_sighandler);
1300	#endif	1354	#endif
1301		1355
1302	signals [signum - 1].pending = 1;	1356	signals [signum - 1].pending = 1;
1303	evpipe_write (EV_A_ &sig_pending);	1357	evpipe_write (EV_A_ &sig_pending);
…		…
1345	break;	1399	break;
1346	}	1400	}
1347	}	1401	}
1348	#endif	1402	#endif
1349		1403
		1404	#endif
		1405
1350	/*****************************************************************************/	1406	/*****************************************************************************/
1351		1407
		1408	#if EV_CHILD_ENABLE
1352	static WL childs [EV_PID_HASHSIZE];	1409	static WL childs [EV_PID_HASHSIZE];
1353
1354	#ifndef _WIN32
1355		1410
1356	static ev_signal childev;	1411	static ev_signal childev;
1357		1412
1358	#ifndef WIFCONTINUED	1413	#ifndef WIFCONTINUED
1359	# define WIFCONTINUED(status) 0	1414	# define WIFCONTINUED(status) 0
…		…
1364	child_reap (EV_P_ int chain, int pid, int status)	1419	child_reap (EV_P_ int chain, int pid, int status)
1365	{	1420	{
1366	ev_child *w;	1421	ev_child *w;
1367	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1422	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1368		1423
1369	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1424	for (w = (ev_child )childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child )((WL)w)->next)
1370	{	1425	{
1371	if ((w->pid == pid \|\| !w->pid)	1426	if ((w->pid == pid \|\| !w->pid)
1372	&& (!traced \|\| (w->flags & 1)))	1427	&& (!traced \|\| (w->flags & 1)))
1373	{	1428	{
1374	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */	1429	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 */	1454	/* 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 */	1455	/* 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);	1456	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1402		1457
1403	child_reap (EV_A_ pid, pid, status);	1458	child_reap (EV_A_ pid, pid, status);
1404	if (EV_PID_HASHSIZE > 1)	1459	if ((EV_PID_HASHSIZE) > 1)
1405	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1460	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1406	}	1461	}
1407		1462
1408	#endif	1463	#endif
1409		1464
…		…
1476	#ifdef __APPLE__	1531	#ifdef __APPLE__
1477	/* only select works correctly on that "unix-certified" platform */	1532	/* only select works correctly on that "unix-certified" platform */
1478	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1533	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1479	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1534	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1480	#endif	1535	#endif
		1536	#ifdef __FreeBSD__
		1537	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1538	#endif
1481		1539
1482	return flags;	1540	return flags;
1483	}	1541	}
1484		1542
1485	unsigned int	1543	unsigned int
…		…
1498	ev_backend (EV_P)	1556	ev_backend (EV_P)
1499	{	1557	{
1500	return backend;	1558	return backend;
1501	}	1559	}
1502		1560
1503	#if EV_MINIMAL < 2	1561	#if EV_FEATURE_API
1504	unsigned int	1562	unsigned int
1505	ev_loop_count (EV_P)	1563	ev_iteration (EV_P)
1506	{	1564	{
1507	return loop_count;	1565	return loop_count;
1508	}	1566	}
1509		1567
1510	unsigned int	1568	unsigned int
1511	ev_loop_depth (EV_P)	1569	ev_depth (EV_P)
1512	{	1570	{
1513	return loop_depth;	1571	return loop_depth;
1514	}	1572	}
1515		1573
1516	void	1574	void
…		…
1588		1646
1589	ev_rt_now = ev_time ();	1647	ev_rt_now = ev_time ();
1590	mn_now = get_clock ();	1648	mn_now = get_clock ();
1591	now_floor = mn_now;	1649	now_floor = mn_now;
1592	rtmn_diff = ev_rt_now - mn_now;	1650	rtmn_diff = ev_rt_now - mn_now;
1593	#if EV_MINIMAL < 2	1651	#if EV_FEATURE_API
1594	invoke_cb = ev_invoke_pending;	1652	invoke_cb = ev_invoke_pending;
1595	#endif	1653	#endif
1596		1654
1597	io_blocktime = 0.;	1655	io_blocktime = 0.;
1598	timeout_blocktime = 0.;	1656	timeout_blocktime = 0.;
…		…
1604	#endif	1662	#endif
1605	#if EV_USE_INOTIFY	1663	#if EV_USE_INOTIFY
1606	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1664	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1607	#endif	1665	#endif
1608	#if EV_USE_SIGNALFD	1666	#if EV_USE_SIGNALFD
1609	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1667	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1610	#endif	1668	#endif
1611		1669
1612	if (!(flags & 0x0000ffffU))	1670	if (!(flags & 0x0000ffffU))
1613	flags \|= ev_recommended_backends ();	1671	flags \|= ev_recommended_backends ();
1614		1672
…		…
1628	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1686	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1629	#endif	1687	#endif
1630		1688
1631	ev_prepare_init (&pending_w, pendingcb);	1689	ev_prepare_init (&pending_w, pendingcb);
1632		1690
		1691	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1633	ev_init (&pipe_w, pipecb);	1692	ev_init (&pipe_w, pipecb);
1634	ev_set_priority (&pipe_w, EV_MAXPRI);	1693	ev_set_priority (&pipe_w, EV_MAXPRI);
		1694	#endif
1635	}	1695	}
1636	}	1696	}
1637		1697
1638	/* free up a loop structure */	1698	/* free up a loop structure */
1639	static void noinline	1699	static void noinline
…		…
1658	}	1718	}
1659	}	1719	}
1660		1720
1661	#if EV_USE_SIGNALFD	1721	#if EV_USE_SIGNALFD
1662	if (ev_is_active (&sigfd_w))	1722	if (ev_is_active (&sigfd_w))
1663	{
1664	/ev_ref (EV_A);/
1665	/ev_io_stop (EV_A_ &sigfd_w);/
1666
1667	close (sigfd);	1723	close (sigfd);
1668	}
1669	#endif	1724	#endif
1670		1725
1671	#if EV_USE_INOTIFY	1726	#if EV_USE_INOTIFY
1672	if (fs_fd >= 0)	1727	if (fs_fd >= 0)
1673	close (fs_fd);	1728	close (fs_fd);
…		…
1762	{	1817	{
1763	EV_WIN32_CLOSE_FD (evpipe [0]);	1818	EV_WIN32_CLOSE_FD (evpipe [0]);
1764	EV_WIN32_CLOSE_FD (evpipe [1]);	1819	EV_WIN32_CLOSE_FD (evpipe [1]);
1765	}	1820	}
1766		1821
		1822	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1767	evpipe_init (EV_A);	1823	evpipe_init (EV_A);
1768	/* now iterate over everything, in case we missed something */	1824	/* now iterate over everything, in case we missed something */
1769	pipecb (EV_A_ &pipe_w, EV_READ);	1825	pipecb (EV_A_ &pipe_w, EV_READ);
		1826	#endif
1770	}	1827	}
1771		1828
1772	postfork = 0;	1829	postfork = 0;
1773	}	1830	}
1774		1831
…		…
1836	verify_watcher (EV_A_ ws [cnt]);	1893	verify_watcher (EV_A_ ws [cnt]);
1837	}	1894	}
1838	}	1895	}
1839	#endif	1896	#endif
1840		1897
1841	#if EV_MINIMAL < 2	1898	#if EV_FEATURE_API
1842	void	1899	void
1843	ev_loop_verify (EV_P)	1900	ev_verify (EV_P)
1844	{	1901	{
1845	#if EV_VERIFY	1902	#if EV_VERIFY
1846	int i;	1903	int i;
1847	WL w;	1904	WL w;
1848		1905
…		…
1887	#if EV_ASYNC_ENABLE	1944	#if EV_ASYNC_ENABLE
1888	assert (asyncmax >= asynccnt);	1945	assert (asyncmax >= asynccnt);
1889	array_verify (EV_A_ (W *)asyncs, asynccnt);	1946	array_verify (EV_A_ (W *)asyncs, asynccnt);
1890	#endif	1947	#endif
1891		1948
		1949	#if EV_PREPARE_ENABLE
1892	assert (preparemax >= preparecnt);	1950	assert (preparemax >= preparecnt);
1893	array_verify (EV_A_ (W *)prepares, preparecnt);	1951	array_verify (EV_A_ (W *)prepares, preparecnt);
		1952	#endif
1894		1953
		1954	#if EV_CHECK_ENABLE
1895	assert (checkmax >= checkcnt);	1955	assert (checkmax >= checkcnt);
1896	array_verify (EV_A_ (W *)checks, checkcnt);	1956	array_verify (EV_A_ (W *)checks, checkcnt);
		1957	#endif
1897		1958
1898	# if 0	1959	# if 0
		1960	#if EV_CHILD_ENABLE
1899	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1961	for (w = (ev_child )childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child )((WL)w)->next)
1900	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1962	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1963	#endif
1901	# endif	1964	# endif
1902	#endif	1965	#endif
1903	}	1966	}
1904	#endif	1967	#endif
1905		1968
…		…
1921		1984
1922	loop_init (EV_A_ flags);	1985	loop_init (EV_A_ flags);
1923		1986
1924	if (ev_backend (EV_A))	1987	if (ev_backend (EV_A))
1925	{	1988	{
1926	#ifndef _WIN32	1989	#if EV_CHILD_ENABLE
1927	ev_signal_init (&childev, childcb, SIGCHLD);	1990	ev_signal_init (&childev, childcb, SIGCHLD);
1928	ev_set_priority (&childev, EV_MAXPRI);	1991	ev_set_priority (&childev, EV_MAXPRI);
1929	ev_signal_start (EV_A_ &childev);	1992	ev_signal_start (EV_A_ &childev);
1930	ev_unref (EV_A); /* child watcher should not keep loop alive */	1993	ev_unref (EV_A); /* child watcher should not keep loop alive */
1931	#endif	1994	#endif
…		…
1944	EV_P = ev_default_loop_ptr;	2007	EV_P = ev_default_loop_ptr;
1945	#endif	2008	#endif
1946		2009
1947	ev_default_loop_ptr = 0;	2010	ev_default_loop_ptr = 0;
1948		2011
1949	#ifndef _WIN32	2012	#if EV_CHILD_ENABLE
1950	ev_ref (EV_A); /* child watcher */	2013	ev_ref (EV_A); /* child watcher */
1951	ev_signal_stop (EV_A_ &childev);	2014	ev_signal_stop (EV_A_ &childev);
1952	#endif	2015	#endif
1953		2016
1954	loop_destroy (EV_A);	2017	loop_destroy (EV_A);
…		…
2060	EV_FREQUENT_CHECK;	2123	EV_FREQUENT_CHECK;
2061	feed_reverse (EV_A_ (W)w);	2124	feed_reverse (EV_A_ (W)w);
2062	}	2125	}
2063	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2126	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2064		2127
2065	feed_reverse_done (EV_A_ EV_TIMEOUT);	2128	feed_reverse_done (EV_A_ EV_TIMER);
2066	}	2129	}
2067	}	2130	}
2068		2131
2069	#if EV_PERIODIC_ENABLE	2132	#if EV_PERIODIC_ENABLE
2070	/* make periodics pending */	2133	/* make periodics pending */
…		…
2123	feed_reverse_done (EV_A_ EV_PERIODIC);	2186	feed_reverse_done (EV_A_ EV_PERIODIC);
2124	}	2187	}
2125	}	2188	}
2126		2189
2127	/* simply recalculate all periodics */	2190	/* simply recalculate all periodics */
2128	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2191	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2129	static void noinline	2192	static void noinline
2130	periodics_reschedule (EV_P)	2193	periodics_reschedule (EV_P)
2131	{	2194	{
2132	int i;	2195	int i;
2133		2196
…		…
2161	ANHE_at_cache (*he);	2224	ANHE_at_cache (*he);
2162	}	2225	}
2163	}	2226	}
2164		2227
2165	/* fetch new monotonic and realtime times from the kernel */	2228	/* fetch new monotonic and realtime times from the kernel */
2166	/* also detetc if there was a timejump, and act accordingly */	2229	/* also detect if there was a timejump, and act accordingly */
2167	inline_speed void	2230	inline_speed void
2168	time_update (EV_P_ ev_tstamp max_block)	2231	time_update (EV_P_ ev_tstamp max_block)
2169	{	2232	{
2170	#if EV_USE_MONOTONIC	2233	#if EV_USE_MONOTONIC
2171	if (expect_true (have_monotonic))	2234	if (expect_true (have_monotonic))
…		…
2231	}	2294	}
2232		2295
2233	void	2296	void
2234	ev_loop (EV_P_ int flags)	2297	ev_loop (EV_P_ int flags)
2235	{	2298	{
2236	#if EV_MINIMAL < 2	2299	#if EV_FEATURE_API
2237	++loop_depth;	2300	++loop_depth;
2238	#endif	2301	#endif
2239		2302
2240	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2303	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2241		2304
…		…
2244	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2307	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2245		2308
2246	do	2309	do
2247	{	2310	{
2248	#if EV_VERIFY >= 2	2311	#if EV_VERIFY >= 2
2249	ev_loop_verify (EV_A);	2312	ev_verify (EV_A);
2250	#endif	2313	#endif
2251		2314
2252	#ifndef _WIN32	2315	#ifndef _WIN32
2253	if (expect_false (curpid)) /* penalise the forking check even more */	2316	if (expect_false (curpid)) /* penalise the forking check even more */
2254	if (expect_false (getpid () != curpid))	2317	if (expect_false (getpid () != curpid))
…		…
2266	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2329	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2267	EV_INVOKE_PENDING;	2330	EV_INVOKE_PENDING;
2268	}	2331	}
2269	#endif	2332	#endif
2270		2333
		2334	#if EV_PREPARE_ENABLE
2271	/* queue prepare watchers (and execute them) */	2335	/* queue prepare watchers (and execute them) */
2272	if (expect_false (preparecnt))	2336	if (expect_false (preparecnt))
2273	{	2337	{
2274	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2338	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2275	EV_INVOKE_PENDING;	2339	EV_INVOKE_PENDING;
2276	}	2340	}
		2341	#endif
2277		2342
2278	if (expect_false (loop_done))	2343	if (expect_false (loop_done))
2279	break;	2344	break;
2280		2345
2281	/* we might have forked, so reify kernel state if necessary */	2346	/* we might have forked, so reify kernel state if necessary */
…		…
2332	waittime -= sleeptime;	2397	waittime -= sleeptime;
2333	}	2398	}
2334	}	2399	}
2335	}	2400	}
2336		2401
2337	#if EV_MINIMAL < 2	2402	#if EV_FEATURE_API
2338	++loop_count;	2403	++loop_count;
2339	#endif	2404	#endif
2340	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2405	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2341	backend_poll (EV_A_ waittime);	2406	backend_poll (EV_A_ waittime);
2342	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2407	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2354	#if EV_IDLE_ENABLE	2419	#if EV_IDLE_ENABLE
2355	/* queue idle watchers unless other events are pending */	2420	/* queue idle watchers unless other events are pending */
2356	idle_reify (EV_A);	2421	idle_reify (EV_A);
2357	#endif	2422	#endif
2358		2423
		2424	#if EV_CHECK_ENABLE
2359	/* queue check watchers, to be executed first */	2425	/* queue check watchers, to be executed first */
2360	if (expect_false (checkcnt))	2426	if (expect_false (checkcnt))
2361	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2427	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2428	#endif
2362		2429
2363	EV_INVOKE_PENDING;	2430	EV_INVOKE_PENDING;
2364	}	2431	}
2365	while (expect_true (	2432	while (expect_true (
2366	activecnt	2433	activecnt
…		…
2369	));	2436	));
2370		2437
2371	if (loop_done == EVUNLOOP_ONE)	2438	if (loop_done == EVUNLOOP_ONE)
2372	loop_done = EVUNLOOP_CANCEL;	2439	loop_done = EVUNLOOP_CANCEL;
2373		2440
2374	#if EV_MINIMAL < 2	2441	#if EV_FEATURE_API
2375	--loop_depth;	2442	--loop_depth;
2376	#endif	2443	#endif
2377	}	2444	}
2378		2445
2379	void	2446	void
…		…
2505		2572
2506	if (expect_false (ev_is_active (w)))	2573	if (expect_false (ev_is_active (w)))
2507	return;	2574	return;
2508		2575
2509	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2576	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2510	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));	2577	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2511		2578
2512	EV_FREQUENT_CHECK;	2579	EV_FREQUENT_CHECK;
2513		2580
2514	ev_start (EV_A_ (W)w, 1);	2581	ev_start (EV_A_ (W)w, 1);
2515	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2582	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2533	EV_FREQUENT_CHECK;	2600	EV_FREQUENT_CHECK;
2534		2601
2535	wlist_del (&anfds[w->fd].head, (WL)w);	2602	wlist_del (&anfds[w->fd].head, (WL)w);
2536	ev_stop (EV_A_ (W)w);	2603	ev_stop (EV_A_ (W)w);
2537		2604
2538	fd_change (EV_A_ w->fd, 1);	2605	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2539		2606
2540	EV_FREQUENT_CHECK;	2607	EV_FREQUENT_CHECK;
2541	}	2608	}
2542		2609
2543	void noinline	2610	void noinline
…		…
2585	timers [active] = timers [timercnt + HEAP0];	2652	timers [active] = timers [timercnt + HEAP0];
2586	adjustheap (timers, timercnt, active);	2653	adjustheap (timers, timercnt, active);
2587	}	2654	}
2588	}	2655	}
2589		2656
2590	EV_FREQUENT_CHECK;
2591
2592	ev_at (w) -= mn_now;	2657	ev_at (w) -= mn_now;
2593		2658
2594	ev_stop (EV_A_ (W)w);	2659	ev_stop (EV_A_ (W)w);
		2660
		2661	EV_FREQUENT_CHECK;
2595	}	2662	}
2596		2663
2597	void noinline	2664	void noinline
2598	ev_timer_again (EV_P_ ev_timer *w)	2665	ev_timer_again (EV_P_ ev_timer *w)
2599	{	2666	{
…		…
2678	periodics [active] = periodics [periodiccnt + HEAP0];	2745	periodics [active] = periodics [periodiccnt + HEAP0];
2679	adjustheap (periodics, periodiccnt, active);	2746	adjustheap (periodics, periodiccnt, active);
2680	}	2747	}
2681	}	2748	}
2682		2749
2683	EV_FREQUENT_CHECK;
2684
2685	ev_stop (EV_A_ (W)w);	2750	ev_stop (EV_A_ (W)w);
		2751
		2752	EV_FREQUENT_CHECK;
2686	}	2753	}
2687		2754
2688	void noinline	2755	void noinline
2689	ev_periodic_again (EV_P_ ev_periodic *w)	2756	ev_periodic_again (EV_P_ ev_periodic *w)
2690	{	2757	{
…		…
2695	#endif	2762	#endif
2696		2763
2697	#ifndef SA_RESTART	2764	#ifndef SA_RESTART
2698	# define SA_RESTART 0	2765	# define SA_RESTART 0
2699	#endif	2766	#endif
		2767
		2768	#if EV_SIGNAL_ENABLE
2700		2769
2701	void noinline	2770	void noinline
2702	ev_signal_start (EV_P_ ev_signal *w)	2771	ev_signal_start (EV_P_ ev_signal *w)
2703	{	2772	{
2704	if (expect_false (ev_is_active (w)))	2773	if (expect_false (ev_is_active (w)))
…		…
2751	if (!((WL)w)->next)	2820	if (!((WL)w)->next)
2752	# if EV_USE_SIGNALFD	2821	# if EV_USE_SIGNALFD
2753	if (sigfd < 0) /TODO/	2822	if (sigfd < 0) /TODO/
2754	# endif	2823	# endif
2755	{	2824	{
2756	# if _WIN32	2825	# ifdef _WIN32
		2826	evpipe_init (EV_A);
		2827
2757	signal (w->signum, ev_sighandler);	2828	signal (w->signum, ev_sighandler);
2758	# else	2829	# else
2759	struct sigaction sa;	2830	struct sigaction sa;
2760		2831
2761	evpipe_init (EV_A);	2832	evpipe_init (EV_A);
…		…
2792	signals [w->signum - 1].loop = 0; /* unattach from signal */	2863	signals [w->signum - 1].loop = 0; /* unattach from signal */
2793	#endif	2864	#endif
2794	#if EV_USE_SIGNALFD	2865	#if EV_USE_SIGNALFD
2795	if (sigfd >= 0)	2866	if (sigfd >= 0)
2796	{	2867	{
2797	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2868	sigset_t ss;
		2869
		2870	sigemptyset (&ss);
		2871	sigaddset (&ss, w->signum);
2798	sigdelset (&sigfd_set, w->signum);	2872	sigdelset (&sigfd_set, w->signum);
		2873
2799	signalfd (sigfd, &sigfd_set, 0);	2874	signalfd (sigfd, &sigfd_set, 0);
2800	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2875	sigprocmask (SIG_UNBLOCK, &ss, 0);
2801	/TODO: maybe unblock signal? /
2802	}	2876	}
2803	else	2877	else
2804	#endif	2878	#endif
2805	signal (w->signum, SIG_DFL);	2879	signal (w->signum, SIG_DFL);
2806	}	2880	}
2807		2881
2808	EV_FREQUENT_CHECK;	2882	EV_FREQUENT_CHECK;
2809	}	2883	}
2810		2884
		2885	#endif
		2886
		2887	#if EV_CHILD_ENABLE
		2888
2811	void	2889	void
2812	ev_child_start (EV_P_ ev_child *w)	2890	ev_child_start (EV_P_ ev_child *w)
2813	{	2891	{
2814	#if EV_MULTIPLICITY	2892	#if EV_MULTIPLICITY
2815	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2893	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2818	return;	2896	return;
2819		2897
2820	EV_FREQUENT_CHECK;	2898	EV_FREQUENT_CHECK;
2821		2899
2822	ev_start (EV_A_ (W)w, 1);	2900	ev_start (EV_A_ (W)w, 1);
2823	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2901	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2824		2902
2825	EV_FREQUENT_CHECK;	2903	EV_FREQUENT_CHECK;
2826	}	2904	}
2827		2905
2828	void	2906	void
…		…
2832	if (expect_false (!ev_is_active (w)))	2910	if (expect_false (!ev_is_active (w)))
2833	return;	2911	return;
2834		2912
2835	EV_FREQUENT_CHECK;	2913	EV_FREQUENT_CHECK;
2836		2914
2837	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2915	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2838	ev_stop (EV_A_ (W)w);	2916	ev_stop (EV_A_ (W)w);
2839		2917
2840	EV_FREQUENT_CHECK;	2918	EV_FREQUENT_CHECK;
2841	}	2919	}
		2920
		2921	#endif
2842		2922
2843	#if EV_STAT_ENABLE	2923	#if EV_STAT_ENABLE
2844		2924
2845	# ifdef _WIN32	2925	# ifdef _WIN32
2846	# undef lstat	2926	# undef lstat
…		…
2852	#define MIN_STAT_INTERVAL 0.1074891	2932	#define MIN_STAT_INTERVAL 0.1074891
2853		2933
2854	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2934	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2855		2935
2856	#if EV_USE_INOTIFY	2936	#if EV_USE_INOTIFY
2857	# define EV_INOTIFY_BUFSIZE 8192	2937
		2938	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2939	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2858		2940
2859	static void noinline	2941	static void noinline
2860	infy_add (EV_P_ ev_stat *w)	2942	infy_add (EV_P_ ev_stat *w)
2861	{	2943	{
2862	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);	2944	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);
2863		2945
2864	if (w->wd < 0)	2946	if (w->wd >= 0)
		2947	{
		2948	struct statfs sfs;
		2949
		2950	/* now local changes will be tracked by inotify, but remote changes won't */
		2951	/* unless the filesystem is known to be local, we therefore still poll */
		2952	/* also do poll on <2.6.25, but with normal frequency */
		2953
		2954	if (!fs_2625)
		2955	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2956	else if (!statfs (w->path, &sfs)
		2957	&& (sfs.f_type == 0x1373 /* devfs */
		2958	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2959	\|\| sfs.f_type == 0x3153464a /* jfs */
		2960	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2961	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2962	\|\| sfs.f_type == 0x58465342 /* xfs */))
		2963	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2964	else
		2965	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2865	{	2966	}
		2967	else
		2968	{
		2969	/* can't use inotify, continue to stat */
2866	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2970	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2867	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2868		2971
2869	/* monitor some parent directory for speedup hints */	2972	/* if path is not there, monitor some parent directory for speedup hints */
2870	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2973	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2871	/* but an efficiency issue only */	2974	/* but an efficiency issue only */
2872	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2975	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2873	{	2976	{
2874	char path [4096];	2977	char path [4096];
…		…
2890	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2993	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2891	}	2994	}
2892	}	2995	}
2893		2996
2894	if (w->wd >= 0)	2997	if (w->wd >= 0)
2895	{
2896	struct statfs sfs;
2897
2898	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2998	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2899		2999
2900	/* now local changes will be tracked by inotify, but remote changes won't */	3000	/* now re-arm timer, if required */
2901	/* unless the filesystem it known to be local, we therefore still poll */	3001	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2902	/* also do poll on <2.6.25, but with normal frequency */
2903
2904	if (fs_2625 && !statfs (w->path, &sfs))
2905	if (sfs.f_type == 0x1373 /* devfs */
2906	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2907	\|\| sfs.f_type == 0x3153464a /* jfs */
2908	\|\| sfs.f_type == 0x52654973 /* reiser3 */
2909	\|\| sfs.f_type == 0x01021994 /* tempfs */
2910	\|\| sfs.f_type == 0x58465342 /* xfs */)
2911	return;
2912
2913	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2914	ev_timer_again (EV_A_ &w->timer);	3002	ev_timer_again (EV_A_ &w->timer);
2915	}	3003	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2916	}	3004	}
2917		3005
2918	static void noinline	3006	static void noinline
2919	infy_del (EV_P_ ev_stat *w)	3007	infy_del (EV_P_ ev_stat *w)
2920	{	3008	{
…		…
2923		3011
2924	if (wd < 0)	3012	if (wd < 0)
2925	return;	3013	return;
2926		3014
2927	w->wd = -2;	3015	w->wd = -2;
2928	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3016	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2929	wlist_del (&fs_hash [slot].head, (WL)w);	3017	wlist_del (&fs_hash [slot].head, (WL)w);
2930		3018
2931	/* remove this watcher, if others are watching it, they will rearm */	3019	/* remove this watcher, if others are watching it, they will rearm */
2932	inotify_rm_watch (fs_fd, wd);	3020	inotify_rm_watch (fs_fd, wd);
2933	}	3021	}
…		…
2935	static void noinline	3023	static void noinline
2936	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3024	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2937	{	3025	{
2938	if (slot < 0)	3026	if (slot < 0)
2939	/* overflow, need to check for all hash slots */	3027	/* overflow, need to check for all hash slots */
2940	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3028	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2941	infy_wd (EV_A_ slot, wd, ev);	3029	infy_wd (EV_A_ slot, wd, ev);
2942	else	3030	else
2943	{	3031	{
2944	WL w_;	3032	WL w_;
2945		3033
2946	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3034	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2947	{	3035	{
2948	ev_stat w = (ev_stat )w_;	3036	ev_stat w = (ev_stat )w_;
2949	w_ = w_->next; /* lets us remove this watcher and all before it */	3037	w_ = w_->next; /* lets us remove this watcher and all before it */
2950		3038
2951	if (w->wd == wd \|\| wd == -1)	3039	if (w->wd == wd \|\| wd == -1)
2952	{	3040	{
2953	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	3041	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2954	{	3042	{
2955	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3043	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2956	w->wd = -1;	3044	w->wd = -1;
2957	infy_add (EV_A_ w); /* re-add, no matter what */	3045	infy_add (EV_A_ w); /* re-add, no matter what */
2958	}	3046	}
2959		3047
2960	stat_timer_cb (EV_A_ &w->timer, 0);	3048	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2965		3053
2966	static void	3054	static void
2967	infy_cb (EV_P_ ev_io *w, int revents)	3055	infy_cb (EV_P_ ev_io *w, int revents)
2968	{	3056	{
2969	char buf [EV_INOTIFY_BUFSIZE];	3057	char buf [EV_INOTIFY_BUFSIZE];
2970	struct inotify_event ev = (struct inotify_event )buf;
2971	int ofs;	3058	int ofs;
2972	int len = read (fs_fd, buf, sizeof (buf));	3059	int len = read (fs_fd, buf, sizeof (buf));
2973		3060
2974	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3061	for (ofs = 0; ofs < len; )
		3062	{
		3063	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2975	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3064	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3065	ofs += sizeof (struct inotify_event) + ev->len;
		3066	}
		3067	}
		3068
		3069	inline_size unsigned int
		3070	ev_linux_version (void)
		3071	{
		3072	struct utsname buf;
		3073	unsigned int v;
		3074	int i;
		3075	char *p = buf.release;
		3076
		3077	if (uname (&buf))
		3078	return 0;
		3079
		3080	for (i = 3+1; --i; )
		3081	{
		3082	unsigned int c = 0;
		3083
		3084	for (;;)
		3085	{
		3086	if (p >= '0' && p <= '9')
		3087	c = c * 10 + *p++ - '0';
		3088	else
		3089	{
		3090	p += *p == '.';
		3091	break;
		3092	}
		3093	}
		3094
		3095	v = (v << 8) \| c;
		3096	}
		3097
		3098	return v;
2976	}	3099	}
2977		3100
2978	inline_size void	3101	inline_size void
2979	check_2625 (EV_P)	3102	ev_check_2625 (EV_P)
2980	{	3103	{
2981	/* kernels < 2.6.25 are borked	3104	/* kernels < 2.6.25 are borked
2982	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3105	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2983	*/	3106	*/
2984	struct utsname buf;	3107	if (ev_linux_version () < 0x020619)
2985	int major, minor, micro;
2986
2987	if (uname (&buf))
2988	return;
2989
2990	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2991	return;
2992
2993	if (major < 2
2994	\|\| (major == 2 && minor < 6)
2995	\|\| (major == 2 && minor == 6 && micro < 25))
2996	return;	3108	return;
2997		3109
2998	fs_2625 = 1;	3110	fs_2625 = 1;
2999	}	3111	}
3000		3112
…		…
3015	if (fs_fd != -2)	3127	if (fs_fd != -2)
3016	return;	3128	return;
3017		3129
3018	fs_fd = -1;	3130	fs_fd = -1;
3019		3131
3020	check_2625 (EV_A);	3132	ev_check_2625 (EV_A);
3021		3133
3022	fs_fd = infy_newfd ();	3134	fs_fd = infy_newfd ();
3023		3135
3024	if (fs_fd >= 0)	3136	if (fs_fd >= 0)
3025	{	3137	{
3026	fd_intern (fs_fd);	3138	fd_intern (fs_fd);
3027	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3139	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
3028	ev_set_priority (&fs_w, EV_MAXPRI);	3140	ev_set_priority (&fs_w, EV_MAXPRI);
3029	ev_io_start (EV_A_ &fs_w);	3141	ev_io_start (EV_A_ &fs_w);
		3142	ev_unref (EV_A);
3030	}	3143	}
3031	}	3144	}
3032		3145
3033	inline_size void	3146	inline_size void
3034	infy_fork (EV_P)	3147	infy_fork (EV_P)
…		…
3036	int slot;	3149	int slot;
3037		3150
3038	if (fs_fd < 0)	3151	if (fs_fd < 0)
3039	return;	3152	return;
3040		3153
		3154	ev_ref (EV_A);
3041	ev_io_stop (EV_A_ &fs_w);	3155	ev_io_stop (EV_A_ &fs_w);
3042	close (fs_fd);	3156	close (fs_fd);
3043	fs_fd = infy_newfd ();	3157	fs_fd = infy_newfd ();
3044		3158
3045	if (fs_fd >= 0)	3159	if (fs_fd >= 0)
3046	{	3160	{
3047	fd_intern (fs_fd);	3161	fd_intern (fs_fd);
3048	ev_io_set (&fs_w, fs_fd, EV_READ);	3162	ev_io_set (&fs_w, fs_fd, EV_READ);
3049	ev_io_start (EV_A_ &fs_w);	3163	ev_io_start (EV_A_ &fs_w);
		3164	ev_unref (EV_A);
3050	}	3165	}
3051		3166
3052	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3167	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3053	{	3168	{
3054	WL w_ = fs_hash [slot].head;	3169	WL w_ = fs_hash [slot].head;
3055	fs_hash [slot].head = 0;	3170	fs_hash [slot].head = 0;
3056		3171
3057	while (w_)	3172	while (w_)
…		…
3062	w->wd = -1;	3177	w->wd = -1;
3063		3178
3064	if (fs_fd >= 0)	3179	if (fs_fd >= 0)
3065	infy_add (EV_A_ w); /* re-add, no matter what */	3180	infy_add (EV_A_ w); /* re-add, no matter what */
3066	else	3181	else
		3182	{
		3183	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3184	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3067	ev_timer_again (EV_A_ &w->timer);	3185	ev_timer_again (EV_A_ &w->timer);
		3186	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3187	}
3068	}	3188	}
3069	}	3189	}
3070	}	3190	}
3071		3191
3072	#endif	3192	#endif
…		…
3089	static void noinline	3209	static void noinline
3090	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3210	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3091	{	3211	{
3092	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3212	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
3093		3213
3094	/* we copy this here each the time so that */	3214	ev_statdata prev = w->attr;
3095	/* prev has the old value when the callback gets invoked */
3096	w->prev = w->attr;
3097	ev_stat_stat (EV_A_ w);	3215	ev_stat_stat (EV_A_ w);
3098		3216
3099	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3217	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3100	if (	3218	if (
3101	w->prev.st_dev != w->attr.st_dev	3219	prev.st_dev != w->attr.st_dev
3102	\|\| w->prev.st_ino != w->attr.st_ino	3220	\|\| prev.st_ino != w->attr.st_ino
3103	\|\| w->prev.st_mode != w->attr.st_mode	3221	\|\| prev.st_mode != w->attr.st_mode
3104	\|\| w->prev.st_nlink != w->attr.st_nlink	3222	\|\| prev.st_nlink != w->attr.st_nlink
3105	\|\| w->prev.st_uid != w->attr.st_uid	3223	\|\| prev.st_uid != w->attr.st_uid
3106	\|\| w->prev.st_gid != w->attr.st_gid	3224	\|\| prev.st_gid != w->attr.st_gid
3107	\|\| w->prev.st_rdev != w->attr.st_rdev	3225	\|\| prev.st_rdev != w->attr.st_rdev
3108	\|\| w->prev.st_size != w->attr.st_size	3226	\|\| prev.st_size != w->attr.st_size
3109	\|\| w->prev.st_atime != w->attr.st_atime	3227	\|\| prev.st_atime != w->attr.st_atime
3110	\|\| w->prev.st_mtime != w->attr.st_mtime	3228	\|\| prev.st_mtime != w->attr.st_mtime
3111	\|\| w->prev.st_ctime != w->attr.st_ctime	3229	\|\| prev.st_ctime != w->attr.st_ctime
3112	) {	3230	) {
		3231	/* we only update w->prev on actual differences */
		3232	/* in case we test more often than invoke the callback, */
		3233	/* to ensure that prev is always different to attr */
		3234	w->prev = prev;
		3235
3113	#if EV_USE_INOTIFY	3236	#if EV_USE_INOTIFY
3114	if (fs_fd >= 0)	3237	if (fs_fd >= 0)
3115	{	3238	{
3116	infy_del (EV_A_ w);	3239	infy_del (EV_A_ w);
3117	infy_add (EV_A_ w);	3240	infy_add (EV_A_ w);
…		…
3142		3265
3143	if (fs_fd >= 0)	3266	if (fs_fd >= 0)
3144	infy_add (EV_A_ w);	3267	infy_add (EV_A_ w);
3145	else	3268	else
3146	#endif	3269	#endif
		3270	{
3147	ev_timer_again (EV_A_ &w->timer);	3271	ev_timer_again (EV_A_ &w->timer);
		3272	ev_unref (EV_A);
		3273	}
3148		3274
3149	ev_start (EV_A_ (W)w, 1);	3275	ev_start (EV_A_ (W)w, 1);
3150		3276
3151	EV_FREQUENT_CHECK;	3277	EV_FREQUENT_CHECK;
3152	}	3278	}
…		…
3161	EV_FREQUENT_CHECK;	3287	EV_FREQUENT_CHECK;
3162		3288
3163	#if EV_USE_INOTIFY	3289	#if EV_USE_INOTIFY
3164	infy_del (EV_A_ w);	3290	infy_del (EV_A_ w);
3165	#endif	3291	#endif
		3292
		3293	if (ev_is_active (&w->timer))
		3294	{
		3295	ev_ref (EV_A);
3166	ev_timer_stop (EV_A_ &w->timer);	3296	ev_timer_stop (EV_A_ &w->timer);
		3297	}
3167		3298
3168	ev_stop (EV_A_ (W)w);	3299	ev_stop (EV_A_ (W)w);
3169		3300
3170	EV_FREQUENT_CHECK;	3301	EV_FREQUENT_CHECK;
3171	}	3302	}
…		…
3216		3347
3217	EV_FREQUENT_CHECK;	3348	EV_FREQUENT_CHECK;
3218	}	3349	}
3219	#endif	3350	#endif
3220		3351
		3352	#if EV_PREPARE_ENABLE
3221	void	3353	void
3222	ev_prepare_start (EV_P_ ev_prepare *w)	3354	ev_prepare_start (EV_P_ ev_prepare *w)
3223	{	3355	{
3224	if (expect_false (ev_is_active (w)))	3356	if (expect_false (ev_is_active (w)))
3225	return;	3357	return;
…		…
3251		3383
3252	ev_stop (EV_A_ (W)w);	3384	ev_stop (EV_A_ (W)w);
3253		3385
3254	EV_FREQUENT_CHECK;	3386	EV_FREQUENT_CHECK;
3255	}	3387	}
		3388	#endif
3256		3389
		3390	#if EV_CHECK_ENABLE
3257	void	3391	void
3258	ev_check_start (EV_P_ ev_check *w)	3392	ev_check_start (EV_P_ ev_check *w)
3259	{	3393	{
3260	if (expect_false (ev_is_active (w)))	3394	if (expect_false (ev_is_active (w)))
3261	return;	3395	return;
…		…
3287		3421
3288	ev_stop (EV_A_ (W)w);	3422	ev_stop (EV_A_ (W)w);
3289		3423
3290	EV_FREQUENT_CHECK;	3424	EV_FREQUENT_CHECK;
3291	}	3425	}
		3426	#endif
3292		3427
3293	#if EV_EMBED_ENABLE	3428	#if EV_EMBED_ENABLE
3294	void noinline	3429	void noinline
3295	ev_embed_sweep (EV_P_ ev_embed *w)	3430	ev_embed_sweep (EV_P_ ev_embed *w)
3296	{	3431	{
…		…
3391		3526
3392	ev_io_stop (EV_A_ &w->io);	3527	ev_io_stop (EV_A_ &w->io);
3393	ev_prepare_stop (EV_A_ &w->prepare);	3528	ev_prepare_stop (EV_A_ &w->prepare);
3394	ev_fork_stop (EV_A_ &w->fork);	3529	ev_fork_stop (EV_A_ &w->fork);
3395		3530
		3531	ev_stop (EV_A_ (W)w);
		3532
3396	EV_FREQUENT_CHECK;	3533	EV_FREQUENT_CHECK;
3397	}	3534	}
3398	#endif	3535	#endif
3399		3536
3400	#if EV_FORK_ENABLE	3537	#if EV_FORK_ENABLE
…		…
3526	{	3663	{
3527	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	3664	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
3528		3665
3529	if (expect_false (!once))	3666	if (expect_false (!once))
3530	{	3667	{
3531	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	3668	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMER, arg);
3532	return;	3669	return;
3533	}	3670	}
3534		3671
3535	once->cb = cb;	3672	once->cb = cb;
3536	once->arg = arg;	3673	once->arg = arg;
…		…
3623	if (types & EV_ASYNC)	3760	if (types & EV_ASYNC)
3624	for (i = asynccnt; i--; )	3761	for (i = asynccnt; i--; )
3625	cb (EV_A_ EV_ASYNC, asyncs [i]);	3762	cb (EV_A_ EV_ASYNC, asyncs [i]);
3626	#endif	3763	#endif
3627		3764
		3765	#if EV_PREPARE_ENABLE
3628	if (types & EV_PREPARE)	3766	if (types & EV_PREPARE)
3629	for (i = preparecnt; i--; )	3767	for (i = preparecnt; i--; )
3630	#if EV_EMBED_ENABLE	3768	# if EV_EMBED_ENABLE
3631	if (ev_cb (prepares [i]) != embed_prepare_cb)	3769	if (ev_cb (prepares [i]) != embed_prepare_cb)
3632	#endif	3770	# endif
3633	cb (EV_A_ EV_PREPARE, prepares [i]);	3771	cb (EV_A_ EV_PREPARE, prepares [i]);
		3772	#endif
3634		3773
		3774	#if EV_CHECK_ENABLE
3635	if (types & EV_CHECK)	3775	if (types & EV_CHECK)
3636	for (i = checkcnt; i--; )	3776	for (i = checkcnt; i--; )
3637	cb (EV_A_ EV_CHECK, checks [i]);	3777	cb (EV_A_ EV_CHECK, checks [i]);
		3778	#endif
3638		3779
		3780	#if EV_SIGNAL_ENABLE
3639	if (types & EV_SIGNAL)	3781	if (types & EV_SIGNAL)
3640	for (i = 0; i < EV_NSIG - 1; ++i)	3782	for (i = 0; i < EV_NSIG - 1; ++i)
3641	for (wl = signals [i].head; wl; )	3783	for (wl = signals [i].head; wl; )
3642	{	3784	{
3643	wn = wl->next;	3785	wn = wl->next;
3644	cb (EV_A_ EV_SIGNAL, wl);	3786	cb (EV_A_ EV_SIGNAL, wl);
3645	wl = wn;	3787	wl = wn;
3646	}	3788	}
		3789	#endif
3647		3790
		3791	#if EV_CHILD_ENABLE
3648	if (types & EV_CHILD)	3792	if (types & EV_CHILD)
3649	for (i = EV_PID_HASHSIZE; i--; )	3793	for (i = (EV_PID_HASHSIZE); i--; )
3650	for (wl = childs [i]; wl; )	3794	for (wl = childs [i]; wl; )
3651	{	3795	{
3652	wn = wl->next;	3796	wn = wl->next;
3653	cb (EV_A_ EV_CHILD, wl);	3797	cb (EV_A_ EV_CHILD, wl);
3654	wl = wn;	3798	wl = wn;
3655	}	3799	}
		3800	#endif
3656	/* EV_STAT 0x00001000 /* stat data changed */	3801	/* EV_STAT 0x00001000 /* stat data changed */
3657	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3802	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3658	}	3803	}
3659	#endif	3804	#endif
3660		3805

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Comparing libev/ev.c (file contents): Revision 1.316 by root, Fri Sep 18 21:02:12 2009 UTC vs. Revision 1.350 by root, Sat Oct 16 00:59:56 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.316 by root, Fri Sep 18 21:02:12 2009 UTC vs.
Revision 1.350 by root, Sat Oct 16 00:59:56 2010 UTC