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Comparing libev/ev.c (file contents):
Revision 1.314 by root, Wed Aug 26 17:31:20 2009 UTC vs.
Revision 1.343 by root, Fri Apr 2 21:03:46 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
88	# endif
89
90	# ifndef EV_USE_SELECT
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
92	# define EV_USE_SELECT 1
93	# else	95	# else
		96	# undef EV_USE_SELECT
94	# define EV_USE_SELECT 0	97	# define EV_USE_SELECT 0
		98	# endif
		99
		100	# if HAVE_POLL && HAVE_POLL_H
		101	# ifndef EV_USE_POLL
		102	# define EV_USE_POLL EV_FEATURE_BACKENDS
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
		107	# endif
		108
		109	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		110	# ifndef EV_USE_EPOLL
		111	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
103	# endif	112	# endif
		113	# else
		114	# undef EV_USE_EPOLL
		115	# define EV_USE_EPOLL 0
104	# endif	116	# endif
105		117
		118	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
106	# ifndef EV_USE_EPOLL	119	# ifndef EV_USE_KQUEUE
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	120	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
108	# define EV_USE_EPOLL 1
109	# else
110	# define EV_USE_EPOLL 0
111	# endif	121	# endif
		122	# else
		123	# undef EV_USE_KQUEUE
		124	# define EV_USE_KQUEUE 0
112	# endif	125	# endif
113		126
114	# ifndef EV_USE_KQUEUE	127	# if HAVE_PORT_H && HAVE_PORT_CREATE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	128	# ifndef EV_USE_PORT
116	# define EV_USE_KQUEUE 1	129	# define EV_USE_PORT EV_FEATURE_BACKENDS
117	# else
118	# define EV_USE_KQUEUE 0
119	# endif	130	# endif
120	# endif
121
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1
125	# else	131	# else
		132	# undef EV_USE_PORT
126	# define EV_USE_PORT 0	133	# define EV_USE_PORT 0
		134	# endif
		135
		136	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		137	# ifndef EV_USE_INOTIFY
		138	# define EV_USE_INOTIFY EV_FEATURE_OS
127	# endif	139	# endif
128	# endif
129
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1
133	# else	140	# else
		141	# undef EV_USE_INOTIFY
134	# define EV_USE_INOTIFY 0	142	# define EV_USE_INOTIFY 0
		143	# endif
		144
		145	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
		146	# ifndef EV_USE_SIGNALFD
		147	# define EV_USE_SIGNALFD EV_FEATURE_OS
135	# endif	148	# endif
136	# endif
137
138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1
141	# else	149	# else
		150	# undef EV_USE_SIGNALFD
142	# define EV_USE_SIGNALFD 0	151	# define EV_USE_SIGNALFD 0
		152	# endif
		153
		154	# if HAVE_EVENTFD
		155	# ifndef EV_USE_EVENTFD
		156	# define EV_USE_EVENTFD EV_FEATURE_OS
143	# endif	157	# endif
144	# endif
145
146	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1
149	# else	158	# else
		159	# undef EV_USE_EVENTFD
150	# define EV_USE_EVENTFD 0	160	# define EV_USE_EVENTFD 0
151	# endif
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
188		200
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	201	/* this block tries to deduce configuration from header-defined symbols and defaults */
190		202
191	/* try to deduce the maximum number of signals on this platform */	203	/* try to deduce the maximum number of signals on this platform */
…		…
204	#elif defined (MAXSIG)	216	#elif defined (MAXSIG)
205	# define EV_NSIG (MAXSIG+1)	217	# define EV_NSIG (MAXSIG+1)
206	#elif defined (MAX_SIG)	218	#elif defined (MAX_SIG)
207	# define EV_NSIG (MAX_SIG+1)	219	# define EV_NSIG (MAX_SIG+1)
208	#elif defined (SIGARRAYSIZE)	220	#elif defined (SIGARRAYSIZE)
209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	221	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210	#elif defined (_sys_nsig)	222	#elif defined (_sys_nsig)
211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	223	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212	#else	224	#else
213	# error "unable to find value for NSIG, please report"	225	# error "unable to find value for NSIG, please report"
214	/* to make it compile regardless, just remove the above line */	226	/* to make it compile regardless, just remove the above line, */
		227	/* but consider reporting it, too! :) */
215	# define EV_NSIG 65	228	# define EV_NSIG 65
216	#endif	229	#endif
217		230
218	#ifndef EV_USE_CLOCK_SYSCALL	231	#ifndef EV_USE_CLOCK_SYSCALL
219	# if __linux && __GLIBC__ >= 2	232	# if __linux && __GLIBC__ >= 2
220	# define EV_USE_CLOCK_SYSCALL 1	233	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221	# else	234	# else
222	# define EV_USE_CLOCK_SYSCALL 0	235	# define EV_USE_CLOCK_SYSCALL 0
223	# endif	236	# endif
224	#endif	237	#endif
225		238
226	#ifndef EV_USE_MONOTONIC	239	#ifndef EV_USE_MONOTONIC
227	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	240	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228	# define EV_USE_MONOTONIC 1	241	# define EV_USE_MONOTONIC EV_FEATURE_OS
229	# else	242	# else
230	# define EV_USE_MONOTONIC 0	243	# define EV_USE_MONOTONIC 0
231	# endif	244	# endif
232	#endif	245	#endif
233		246
…		…
235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	248	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236	#endif	249	#endif
237		250
238	#ifndef EV_USE_NANOSLEEP	251	#ifndef EV_USE_NANOSLEEP
239	# if _POSIX_C_SOURCE >= 199309L	252	# if _POSIX_C_SOURCE >= 199309L
240	# define EV_USE_NANOSLEEP 1	253	# define EV_USE_NANOSLEEP EV_FEATURE_OS
241	# else	254	# else
242	# define EV_USE_NANOSLEEP 0	255	# define EV_USE_NANOSLEEP 0
243	# endif	256	# endif
244	#endif	257	#endif
245		258
246	#ifndef EV_USE_SELECT	259	#ifndef EV_USE_SELECT
247	# define EV_USE_SELECT 1	260	# define EV_USE_SELECT EV_FEATURE_BACKENDS
248	#endif	261	#endif
249		262
250	#ifndef EV_USE_POLL	263	#ifndef EV_USE_POLL
251	# ifdef _WIN32	264	# ifdef _WIN32
252	# define EV_USE_POLL 0	265	# define EV_USE_POLL 0
253	# else	266	# else
254	# define EV_USE_POLL 1	267	# define EV_USE_POLL EV_FEATURE_BACKENDS
255	# endif	268	# endif
256	#endif	269	#endif
257		270
258	#ifndef EV_USE_EPOLL	271	#ifndef EV_USE_EPOLL
259	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	272	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260	# define EV_USE_EPOLL 1	273	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261	# else	274	# else
262	# define EV_USE_EPOLL 0	275	# define EV_USE_EPOLL 0
263	# endif	276	# endif
264	#endif	277	#endif
265		278
…		…
271	# define EV_USE_PORT 0	284	# define EV_USE_PORT 0
272	#endif	285	#endif
273		286
274	#ifndef EV_USE_INOTIFY	287	#ifndef EV_USE_INOTIFY
275	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	288	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276	# define EV_USE_INOTIFY 1	289	# define EV_USE_INOTIFY EV_FEATURE_OS
277	# else	290	# else
278	# define EV_USE_INOTIFY 0	291	# define EV_USE_INOTIFY 0
279	# endif	292	# endif
280	#endif	293	#endif
281		294
282	#ifndef EV_PID_HASHSIZE	295	#ifndef EV_PID_HASHSIZE
283	# if EV_MINIMAL	296	# 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	297	#endif
289		298
290	#ifndef EV_INOTIFY_HASHSIZE	299	#ifndef EV_INOTIFY_HASHSIZE
291	# if EV_MINIMAL	300	# 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	301	#endif
297		302
298	#ifndef EV_USE_EVENTFD	303	#ifndef EV_USE_EVENTFD
299	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	304	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300	# define EV_USE_EVENTFD 1	305	# define EV_USE_EVENTFD EV_FEATURE_OS
301	# else	306	# else
302	# define EV_USE_EVENTFD 0	307	# define EV_USE_EVENTFD 0
303	# endif	308	# endif
304	#endif	309	#endif
305		310
306	#ifndef EV_USE_SIGNALFD	311	#ifndef EV_USE_SIGNALFD
307	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	312	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308	# define EV_USE_SIGNALFD 1	313	# define EV_USE_SIGNALFD EV_FEATURE_OS
309	# else	314	# else
310	# define EV_USE_SIGNALFD 0	315	# define EV_USE_SIGNALFD 0
311	# endif	316	# endif
312	#endif	317	#endif
313		318
…		…
316	# define EV_USE_4HEAP 1	321	# define EV_USE_4HEAP 1
317	# define EV_HEAP_CACHE_AT 1	322	# define EV_HEAP_CACHE_AT 1
318	#endif	323	#endif
319		324
320	#ifndef EV_VERIFY	325	#ifndef EV_VERIFY
321	# define EV_VERIFY !EV_MINIMAL	326	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322	#endif	327	#endif
323		328
324	#ifndef EV_USE_4HEAP	329	#ifndef EV_USE_4HEAP
325	# define EV_USE_4HEAP !EV_MINIMAL	330	# define EV_USE_4HEAP EV_FEATURE_DATA
326	#endif	331	#endif
327		332
328	#ifndef EV_HEAP_CACHE_AT	333	#ifndef EV_HEAP_CACHE_AT
329	# define EV_HEAP_CACHE_AT !EV_MINIMAL	334	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330	#endif	335	#endif
331		336
332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	337	/* 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. */	338	/* which makes programs even slower. might work on other unices, too. */
334	#if EV_USE_CLOCK_SYSCALL	339	#if EV_USE_CLOCK_SYSCALL
…		…
343	# endif	348	# endif
344	#endif	349	#endif
345		350
346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	351	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347		352
		353	#ifdef _AIX
		354	/* AIX has a completely broken poll.h header */
		355	# undef EV_USE_POLL
		356	# define EV_USE_POLL 0
		357	#endif
		358
348	#ifndef CLOCK_MONOTONIC	359	#ifndef CLOCK_MONOTONIC
349	# undef EV_USE_MONOTONIC	360	# undef EV_USE_MONOTONIC
350	# define EV_USE_MONOTONIC 0	361	# define EV_USE_MONOTONIC 0
351	#endif	362	#endif
352		363
…		…
395	# endif	406	# endif
396	# endif	407	# endif
397	# ifdef __cplusplus	408	# ifdef __cplusplus
398	extern "C" {	409	extern "C" {
399	# endif	410	# endif
400	int eventfd (unsigned int initval, int flags);	411	int (eventfd) (unsigned int initval, int flags);
401	# ifdef __cplusplus	412	# ifdef __cplusplus
402	}	413	}
403	# endif	414	# endif
404	#endif	415	#endif
405		416
…		…
433		444
434		445
435	/**/	446	/**/
436		447
437	#if EV_VERIFY >= 3	448	#if EV_VERIFY >= 3
438	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	449	# define EV_FREQUENT_CHECK ev_verify (EV_A)
439	#else	450	#else
440	# define EV_FREQUENT_CHECK do { } while (0)	451	# define EV_FREQUENT_CHECK do { } while (0)
441	#endif	452	#endif
442		453
443	/*	454	/*
…		…
450	*/	461	*/
451	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	462	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
452		463
453	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	464	#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) */	465	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
455	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
456		466
457	#if __GNUC__ >= 4	467	#if __GNUC__ >= 4
458	# define expect(expr,value) __builtin_expect ((expr),(value))	468	# define expect(expr,value) __builtin_expect ((expr),(value))
459	# define noinline __attribute__ ((noinline))	469	# define noinline __attribute__ ((noinline))
460	#else	470	#else
…		…
467		477
468	#define expect_false(expr) expect ((expr) != 0, 0)	478	#define expect_false(expr) expect ((expr) != 0, 0)
469	#define expect_true(expr) expect ((expr) != 0, 1)	479	#define expect_true(expr) expect ((expr) != 0, 1)
470	#define inline_size static inline	480	#define inline_size static inline
471		481
472	#if EV_MINIMAL	482	#if EV_FEATURE_CODE
		483	# define inline_speed static inline
		484	#else
473	# define inline_speed static noinline	485	# define inline_speed static noinline
474	#else
475	# define inline_speed static inline
476	#endif	486	#endif
477		487
478	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	488	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479		489
480	#if EV_MINPRI == EV_MAXPRI	490	#if EV_MINPRI == EV_MAXPRI
…		…
505		515
506	#ifndef EV_FD_TO_WIN32_HANDLE	516	#ifndef EV_FD_TO_WIN32_HANDLE
507	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)	517	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
508	#endif	518	#endif
509	#ifndef EV_WIN32_HANDLE_TO_FD	519	#ifndef EV_WIN32_HANDLE_TO_FD
510	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)	520	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
511	#endif	521	#endif
512	#ifndef EV_WIN32_CLOSE_FD	522	#ifndef EV_WIN32_CLOSE_FD
513	# define EV_WIN32_CLOSE_FD(fd) close (fd)	523	# define EV_WIN32_CLOSE_FD(fd) close (fd)
514	#endif	524	#endif
515		525
516	#ifdef _WIN32	526	#ifdef _WIN32
517	# include "ev_win32.c"	527	# include "ev_win32.c"
518	#endif	528	#endif
519		529
520	/*****************************************************************************/	530	/*****************************************************************************/
		531
		532	#if EV_AVOID_STDIO
		533	static void noinline
		534	ev_printerr (const char *msg)
		535	{
		536	write (STDERR_FILENO, msg, strlen (msg));
		537	}
		538	#endif
521		539
522	static void (*syserr_cb)(const char *msg);	540	static void (*syserr_cb)(const char *msg);
523		541
524	void	542	void
525	ev_set_syserr_cb (void (*cb)(const char *msg))	543	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
535		553
536	if (syserr_cb)	554	if (syserr_cb)
537	syserr_cb (msg);	555	syserr_cb (msg);
538	else	556	else
539	{	557	{
		558	#if EV_AVOID_STDIO
		559	const char *err = strerror (errno);
		560
		561	ev_printerr (msg);
		562	ev_printerr (": ");
		563	ev_printerr (err);
		564	ev_printerr ("\n");
		565	#else
540	perror (msg);	566	perror (msg);
		567	#endif
541	abort ();	568	abort ();
542	}	569	}
543	}	570	}
544		571
545	static void *	572	static void *
546	ev_realloc_emul (void *ptr, long size)	573	ev_realloc_emul (void *ptr, long size)
547	{	574	{
		575	#if __GLIBC__
		576	return realloc (ptr, size);
		577	#else
548	/* some systems, notably openbsd and darwin, fail to properly	578	/* some systems, notably openbsd and darwin, fail to properly
549	* implement realloc (x, 0) (as required by both ansi c-98 and	579	* implement realloc (x, 0) (as required by both ansi c-89 and
550	* the single unix specification, so work around them here.	580	* the single unix specification, so work around them here.
551	*/	581	*/
552		582
553	if (size)	583	if (size)
554	return realloc (ptr, size);	584	return realloc (ptr, size);
555		585
556	free (ptr);	586	free (ptr);
557	return 0;	587	return 0;
		588	#endif
558	}	589	}
559		590
560	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	591	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
561		592
562	void	593	void
…		…
570	{	601	{
571	ptr = alloc (ptr, size);	602	ptr = alloc (ptr, size);
572		603
573	if (!ptr && size)	604	if (!ptr && size)
574	{	605	{
		606	#if EV_AVOID_STDIO
		607	ev_printerr ("libev: memory allocation failed, aborting.\n");
		608	#else
575	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	609	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		610	#endif
576	abort ();	611	abort ();
577	}	612	}
578		613
579	return ptr;	614	return ptr;
580	}	615	}
…		…
662		697
663	static int ev_default_loop_ptr;	698	static int ev_default_loop_ptr;
664		699
665	#endif	700	#endif
666		701
667	#if EV_MINIMAL < 2	702	#if EV_FEATURE_API
668	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	703	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	704	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670	# define EV_INVOKE_PENDING invoke_cb (EV_A)	705	# define EV_INVOKE_PENDING invoke_cb (EV_A)
671	#else	706	#else
672	# define EV_RELEASE_CB (void)0	707	# define EV_RELEASE_CB (void)0
…		…
857	}	892	}
858		893
859	/*****************************************************************************/	894	/*****************************************************************************/
860		895
861	inline_speed void	896	inline_speed void
862	fd_event_nc (EV_P_ int fd, int revents)	897	fd_event_nocheck (EV_P_ int fd, int revents)
863	{	898	{
864	ANFD *anfd = anfds + fd;	899	ANFD *anfd = anfds + fd;
865	ev_io *w;	900	ev_io *w;
866		901
867	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	902	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
879	fd_event (EV_P_ int fd, int revents)	914	fd_event (EV_P_ int fd, int revents)
880	{	915	{
881	ANFD *anfd = anfds + fd;	916	ANFD *anfd = anfds + fd;
882		917
883	if (expect_true (!anfd->reify))	918	if (expect_true (!anfd->reify))
884	fd_event_nc (EV_A_ fd, revents);	919	fd_event_nocheck (EV_A_ fd, revents);
885	}	920	}
886		921
887	void	922	void
888	ev_feed_fd_event (EV_P_ int fd, int revents)	923	ev_feed_fd_event (EV_P_ int fd, int revents)
889	{	924	{
890	if (fd >= 0 && fd < anfdmax)	925	if (fd >= 0 && fd < anfdmax)
891	fd_event_nc (EV_A_ fd, revents);	926	fd_event_nocheck (EV_A_ fd, revents);
892	}	927	}
893		928
894	/* make sure the external fd watch events are in-sync */	929	/* make sure the external fd watch events are in-sync */
895	/* with the kernel/libev internal state */	930	/* with the kernel/libev internal state */
896	inline_size void	931	inline_size void
…		…
959	ev_io_stop (EV_A_ w);	994	ev_io_stop (EV_A_ w);
960	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	995	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961	}	996	}
962	}	997	}
963		998
964	/* check whether the given fd is atcually valid, for error recovery */	999	/* check whether the given fd is actually valid, for error recovery */
965	inline_size int	1000	inline_size int
966	fd_valid (int fd)	1001	fd_valid (int fd)
967	{	1002	{
968	#ifdef _WIN32	1003	#ifdef _WIN32
969	return _get_osfhandle (fd) != -1;	1004	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970	#else	1005	#else
971	return fcntl (fd, F_GETFD) != -1;	1006	return fcntl (fd, F_GETFD) != -1;
972	#endif	1007	#endif
973	}	1008	}
974		1009
…		…
1009	{	1044	{
1010	anfds [fd].events = 0;	1045	anfds [fd].events = 0;
1011	anfds [fd].emask = 0;	1046	anfds [fd].emask = 0;
1012	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1047	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013	}	1048	}
		1049	}
		1050
		1051	/* used to prepare libev internal fd's */
		1052	/* this is not fork-safe */
		1053	inline_speed void
		1054	fd_intern (int fd)
		1055	{
		1056	#ifdef _WIN32
		1057	unsigned long arg = 1;
		1058	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1059	#else
		1060	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1061	fcntl (fd, F_SETFL, O_NONBLOCK);
		1062	#endif
1014	}	1063	}
1015		1064
1016	/*****************************************************************************/	1065	/*****************************************************************************/
1017		1066
1018	/*	1067	/*
…		…
1172		1221
1173	static ANSIG signals [EV_NSIG - 1];	1222	static ANSIG signals [EV_NSIG - 1];
1174		1223
1175	/*****************************************************************************/	1224	/*****************************************************************************/
1176		1225
1177	/* used to prepare libev internal fd's */	1226	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1178	/* this is not fork-safe */
1179	inline_speed void
1180	fd_intern (int fd)
1181	{
1182	#ifdef _WIN32
1183	unsigned long arg = 1;
1184	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1185	#else
1186	fcntl (fd, F_SETFD, FD_CLOEXEC);
1187	fcntl (fd, F_SETFL, O_NONBLOCK);
1188	#endif
1189	}
1190		1227
1191	static void noinline	1228	static void noinline
1192	evpipe_init (EV_P)	1229	evpipe_init (EV_P)
1193	{	1230	{
1194	if (!ev_is_active (&pipe_w))	1231	if (!ev_is_active (&pipe_w))
1195	{	1232	{
1196	#if EV_USE_EVENTFD	1233	# if EV_USE_EVENTFD
1197	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1234	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198	if (evfd < 0 && errno == EINVAL)	1235	if (evfd < 0 && errno == EINVAL)
1199	evfd = eventfd (0, 0);	1236	evfd = eventfd (0, 0);
1200		1237
1201	if (evfd >= 0)	1238	if (evfd >= 0)
…		…
1203	evpipe [0] = -1;	1240	evpipe [0] = -1;
1204	fd_intern (evfd); /* doing it twice doesn't hurt */	1241	fd_intern (evfd); /* doing it twice doesn't hurt */
1205	ev_io_set (&pipe_w, evfd, EV_READ);	1242	ev_io_set (&pipe_w, evfd, EV_READ);
1206	}	1243	}
1207	else	1244	else
1208	#endif	1245	# endif
1209	{	1246	{
1210	while (pipe (evpipe))	1247	while (pipe (evpipe))
1211	ev_syserr ("(libev) error creating signal/async pipe");	1248	ev_syserr ("(libev) error creating signal/async pipe");
1212		1249
1213	fd_intern (evpipe [0]);	1250	fd_intern (evpipe [0]);
…		…
1224	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1261	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225	{	1262	{
1226	if (!*flag)	1263	if (!*flag)
1227	{	1264	{
1228	int old_errno = errno; /* save errno because write might clobber it */	1265	int old_errno = errno; /* save errno because write might clobber it */
		1266	char dummy;
1229		1267
1230	*flag = 1;	1268	*flag = 1;
1231		1269
1232	#if EV_USE_EVENTFD	1270	#if EV_USE_EVENTFD
1233	if (evfd >= 0)	1271	if (evfd >= 0)
…		…
1235	uint64_t counter = 1;	1273	uint64_t counter = 1;
1236	write (evfd, &counter, sizeof (uint64_t));	1274	write (evfd, &counter, sizeof (uint64_t));
1237	}	1275	}
1238	else	1276	else
1239	#endif	1277	#endif
1240	write (evpipe [1], &old_errno, 1);	1278	write (evpipe [1], &dummy, 1);
1241		1279
1242	errno = old_errno;	1280	errno = old_errno;
1243	}	1281	}
1244	}	1282	}
1245		1283
…		…
1294	{	1332	{
1295	#if EV_MULTIPLICITY	1333	#if EV_MULTIPLICITY
1296	EV_P = signals [signum - 1].loop;	1334	EV_P = signals [signum - 1].loop;
1297	#endif	1335	#endif
1298		1336
1299	#if _WIN32	1337	#ifdef _WIN32
1300	signal (signum, ev_sighandler);	1338	signal (signum, ev_sighandler);
1301	#endif	1339	#endif
1302		1340
1303	signals [signum - 1].pending = 1;	1341	signals [signum - 1].pending = 1;
1304	evpipe_write (EV_A_ &sig_pending);	1342	evpipe_write (EV_A_ &sig_pending);
…		…
1346	break;	1384	break;
1347	}	1385	}
1348	}	1386	}
1349	#endif	1387	#endif
1350		1388
		1389	#endif
		1390
1351	/*****************************************************************************/	1391	/*****************************************************************************/
1352		1392
		1393	#if EV_CHILD_ENABLE
1353	static WL childs [EV_PID_HASHSIZE];	1394	static WL childs [EV_PID_HASHSIZE];
1354
1355	#ifndef _WIN32
1356		1395
1357	static ev_signal childev;	1396	static ev_signal childev;
1358		1397
1359	#ifndef WIFCONTINUED	1398	#ifndef WIFCONTINUED
1360	# define WIFCONTINUED(status) 0	1399	# define WIFCONTINUED(status) 0
…		…
1365	child_reap (EV_P_ int chain, int pid, int status)	1404	child_reap (EV_P_ int chain, int pid, int status)
1366	{	1405	{
1367	ev_child *w;	1406	ev_child *w;
1368	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1407	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369		1408
1370	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1409	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371	{	1410	{
1372	if ((w->pid == pid || !w->pid)	1411	if ((w->pid == pid || !w->pid)
1373	&& (!traced || (w->flags & 1)))	1412	&& (!traced || (w->flags & 1)))
1374	{	1413	{
1375	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1414	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1400	/* make sure we are called again until all children have been reaped */	1439	/* make sure we are called again until all children have been reaped */
1401	/* we need to do it this way so that the callback gets called before we continue */	1440	/* we need to do it this way so that the callback gets called before we continue */
1402	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1441	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403		1442
1404	child_reap (EV_A_ pid, pid, status);	1443	child_reap (EV_A_ pid, pid, status);
1405	if (EV_PID_HASHSIZE > 1)	1444	if ((EV_PID_HASHSIZE) > 1)
1406	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1445	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407	}	1446	}
1408		1447
1409	#endif	1448	#endif
1410		1449
…		…
1477	#ifdef __APPLE__	1516	#ifdef __APPLE__
1478	/* only select works correctly on that "unix-certified" platform */	1517	/* only select works correctly on that "unix-certified" platform */
1479	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1518	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1519	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481	#endif	1520	#endif
		1521	#ifdef __FreeBSD__
		1522	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1523	#endif
1482		1524
1483	return flags;	1525	return flags;
1484	}	1526	}
1485		1527
1486	unsigned int	1528	unsigned int
…		…
1499	ev_backend (EV_P)	1541	ev_backend (EV_P)
1500	{	1542	{
1501	return backend;	1543	return backend;
1502	}	1544	}
1503		1545
1504	#if EV_MINIMAL < 2	1546	#if EV_FEATURE_API
1505	unsigned int	1547	unsigned int
1506	ev_loop_count (EV_P)	1548	ev_iteration (EV_P)
1507	{	1549	{
1508	return loop_count;	1550	return loop_count;
1509	}	1551	}
1510		1552
1511	unsigned int	1553	unsigned int
1512	ev_loop_depth (EV_P)	1554	ev_depth (EV_P)
1513	{	1555	{
1514	return loop_depth;	1556	return loop_depth;
1515	}	1557	}
1516		1558
1517	void	1559	void
…		…
1589		1631
1590	ev_rt_now = ev_time ();	1632	ev_rt_now = ev_time ();
1591	mn_now = get_clock ();	1633	mn_now = get_clock ();
1592	now_floor = mn_now;	1634	now_floor = mn_now;
1593	rtmn_diff = ev_rt_now - mn_now;	1635	rtmn_diff = ev_rt_now - mn_now;
1594	#if EV_MINIMAL < 2	1636	#if EV_FEATURE_API
1595	invoke_cb = ev_invoke_pending;	1637	invoke_cb = ev_invoke_pending;
1596	#endif	1638	#endif
1597		1639
1598	io_blocktime = 0.;	1640	io_blocktime = 0.;
1599	timeout_blocktime = 0.;	1641	timeout_blocktime = 0.;
…		…
1605	#endif	1647	#endif
1606	#if EV_USE_INOTIFY	1648	#if EV_USE_INOTIFY
1607	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1649	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608	#endif	1650	#endif
1609	#if EV_USE_SIGNALFD	1651	#if EV_USE_SIGNALFD
1610	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1652	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611	#endif	1653	#endif
1612		1654
1613	if (!(flags & 0x0000ffffU))	1655	if (!(flags & 0x0000ffffU))
1614	flags |= ev_recommended_backends ();	1656	flags |= ev_recommended_backends ();
1615		1657
…		…
1629	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1671	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630	#endif	1672	#endif
1631		1673
1632	ev_prepare_init (&pending_w, pendingcb);	1674	ev_prepare_init (&pending_w, pendingcb);
1633		1675
		1676	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634	ev_init (&pipe_w, pipecb);	1677	ev_init (&pipe_w, pipecb);
1635	ev_set_priority (&pipe_w, EV_MAXPRI);	1678	ev_set_priority (&pipe_w, EV_MAXPRI);
		1679	#endif
1636	}	1680	}
1637	}	1681	}
1638		1682
1639	/* free up a loop structure */	1683	/* free up a loop structure */
1640	static void noinline	1684	static void noinline
…		…
1659	}	1703	}
1660	}	1704	}
1661		1705
1662	#if EV_USE_SIGNALFD	1706	#if EV_USE_SIGNALFD
1663	if (ev_is_active (&sigfd_w))	1707	if (ev_is_active (&sigfd_w))
1664	{
1665	/*ev_ref (EV_A);*/
1666	/*ev_io_stop (EV_A_ &sigfd_w);*/
1667
1668	close (sigfd);	1708	close (sigfd);
1669	}
1670	#endif	1709	#endif
1671		1710
1672	#if EV_USE_INOTIFY	1711	#if EV_USE_INOTIFY
1673	if (fs_fd >= 0)	1712	if (fs_fd >= 0)
1674	close (fs_fd);	1713	close (fs_fd);
…		…
1763	{	1802	{
1764	EV_WIN32_CLOSE_FD (evpipe [0]);	1803	EV_WIN32_CLOSE_FD (evpipe [0]);
1765	EV_WIN32_CLOSE_FD (evpipe [1]);	1804	EV_WIN32_CLOSE_FD (evpipe [1]);
1766	}	1805	}
1767		1806
		1807	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1768	evpipe_init (EV_A);	1808	evpipe_init (EV_A);
1769	/* now iterate over everything, in case we missed something */	1809	/* now iterate over everything, in case we missed something */
1770	pipecb (EV_A_ &pipe_w, EV_READ);	1810	pipecb (EV_A_ &pipe_w, EV_READ);
		1811	#endif
1771	}	1812	}
1772		1813
1773	postfork = 0;	1814	postfork = 0;
1774	}	1815	}
1775		1816
…		…
1837	verify_watcher (EV_A_ ws [cnt]);	1878	verify_watcher (EV_A_ ws [cnt]);
1838	}	1879	}
1839	}	1880	}
1840	#endif	1881	#endif
1841		1882
1842	#if EV_MINIMAL < 2	1883	#if EV_FEATURE_API
1843	void	1884	void
1844	ev_loop_verify (EV_P)	1885	ev_verify (EV_P)
1845	{	1886	{
1846	#if EV_VERIFY	1887	#if EV_VERIFY
1847	int i;	1888	int i;
1848	WL w;	1889	WL w;
1849		1890
…		…
1888	#if EV_ASYNC_ENABLE	1929	#if EV_ASYNC_ENABLE
1889	assert (asyncmax >= asynccnt);	1930	assert (asyncmax >= asynccnt);
1890	array_verify (EV_A_ (W *)asyncs, asynccnt);	1931	array_verify (EV_A_ (W *)asyncs, asynccnt);
1891	#endif	1932	#endif
1892		1933
		1934	#if EV_PREPARE_ENABLE
1893	assert (preparemax >= preparecnt);	1935	assert (preparemax >= preparecnt);
1894	array_verify (EV_A_ (W *)prepares, preparecnt);	1936	array_verify (EV_A_ (W *)prepares, preparecnt);
		1937	#endif
1895		1938
		1939	#if EV_CHECK_ENABLE
1896	assert (checkmax >= checkcnt);	1940	assert (checkmax >= checkcnt);
1897	array_verify (EV_A_ (W *)checks, checkcnt);	1941	array_verify (EV_A_ (W *)checks, checkcnt);
		1942	#endif
1898		1943
1899	# if 0	1944	# if 0
		1945	#if EV_CHILD_ENABLE
1900	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1946	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1901	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1947	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1948	#endif
1902	# endif	1949	# endif
1903	#endif	1950	#endif
1904	}	1951	}
1905	#endif	1952	#endif
1906		1953
…		…
1922		1969
1923	loop_init (EV_A_ flags);	1970	loop_init (EV_A_ flags);
1924		1971
1925	if (ev_backend (EV_A))	1972	if (ev_backend (EV_A))
1926	{	1973	{
1927	#ifndef _WIN32	1974	#if EV_CHILD_ENABLE
1928	ev_signal_init (&childev, childcb, SIGCHLD);	1975	ev_signal_init (&childev, childcb, SIGCHLD);
1929	ev_set_priority (&childev, EV_MAXPRI);	1976	ev_set_priority (&childev, EV_MAXPRI);
1930	ev_signal_start (EV_A_ &childev);	1977	ev_signal_start (EV_A_ &childev);
1931	ev_unref (EV_A); /* child watcher should not keep loop alive */	1978	ev_unref (EV_A); /* child watcher should not keep loop alive */
1932	#endif	1979	#endif
…		…
1945	EV_P = ev_default_loop_ptr;	1992	EV_P = ev_default_loop_ptr;
1946	#endif	1993	#endif
1947		1994
1948	ev_default_loop_ptr = 0;	1995	ev_default_loop_ptr = 0;
1949		1996
1950	#ifndef _WIN32	1997	#if EV_CHILD_ENABLE
1951	ev_ref (EV_A); /* child watcher */	1998	ev_ref (EV_A); /* child watcher */
1952	ev_signal_stop (EV_A_ &childev);	1999	ev_signal_stop (EV_A_ &childev);
1953	#endif	2000	#endif
1954		2001
1955	loop_destroy (EV_A);	2002	loop_destroy (EV_A);
…		…
2061	EV_FREQUENT_CHECK;	2108	EV_FREQUENT_CHECK;
2062	feed_reverse (EV_A_ (W)w);	2109	feed_reverse (EV_A_ (W)w);
2063	}	2110	}
2064	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2111	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2065		2112
2066	feed_reverse_done (EV_A_ EV_TIMEOUT);	2113	feed_reverse_done (EV_A_ EV_TIMER);
2067	}	2114	}
2068	}	2115	}
2069		2116
2070	#if EV_PERIODIC_ENABLE	2117	#if EV_PERIODIC_ENABLE
2071	/* make periodics pending */	2118	/* make periodics pending */
…		…
2162	ANHE_at_cache (*he);	2209	ANHE_at_cache (*he);
2163	}	2210	}
2164	}	2211	}
2165		2212
2166	/* fetch new monotonic and realtime times from the kernel */	2213	/* fetch new monotonic and realtime times from the kernel */
2167	/* also detetc if there was a timejump, and act accordingly */	2214	/* also detect if there was a timejump, and act accordingly */
2168	inline_speed void	2215	inline_speed void
2169	time_update (EV_P_ ev_tstamp max_block)	2216	time_update (EV_P_ ev_tstamp max_block)
2170	{	2217	{
2171	#if EV_USE_MONOTONIC	2218	#if EV_USE_MONOTONIC
2172	if (expect_true (have_monotonic))	2219	if (expect_true (have_monotonic))
…		…
2232	}	2279	}
2233		2280
2234	void	2281	void
2235	ev_loop (EV_P_ int flags)	2282	ev_loop (EV_P_ int flags)
2236	{	2283	{
2237	#if EV_MINIMAL < 2	2284	#if EV_FEATURE_API
2238	++loop_depth;	2285	++loop_depth;
2239	#endif	2286	#endif
2240		2287
2241	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2288	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2242		2289
…		…
2245	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2292	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2246		2293
2247	do	2294	do
2248	{	2295	{
2249	#if EV_VERIFY >= 2	2296	#if EV_VERIFY >= 2
2250	ev_loop_verify (EV_A);	2297	ev_verify (EV_A);
2251	#endif	2298	#endif
2252		2299
2253	#ifndef _WIN32	2300	#ifndef _WIN32
2254	if (expect_false (curpid)) /* penalise the forking check even more */	2301	if (expect_false (curpid)) /* penalise the forking check even more */
2255	if (expect_false (getpid () != curpid))	2302	if (expect_false (getpid () != curpid))
…		…
2267	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2314	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2268	EV_INVOKE_PENDING;	2315	EV_INVOKE_PENDING;
2269	}	2316	}
2270	#endif	2317	#endif
2271		2318
		2319	#if EV_PREPARE_ENABLE
2272	/* queue prepare watchers (and execute them) */	2320	/* queue prepare watchers (and execute them) */
2273	if (expect_false (preparecnt))	2321	if (expect_false (preparecnt))
2274	{	2322	{
2275	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2323	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2276	EV_INVOKE_PENDING;	2324	EV_INVOKE_PENDING;
2277	}	2325	}
		2326	#endif
2278		2327
2279	if (expect_false (loop_done))	2328	if (expect_false (loop_done))
2280	break;	2329	break;
2281		2330
2282	/* we might have forked, so reify kernel state if necessary */	2331	/* we might have forked, so reify kernel state if necessary */
…		…
2333	waittime -= sleeptime;	2382	waittime -= sleeptime;
2334	}	2383	}
2335	}	2384	}
2336	}	2385	}
2337		2386
2338	#if EV_MINIMAL < 2	2387	#if EV_FEATURE_API
2339	++loop_count;	2388	++loop_count;
2340	#endif	2389	#endif
2341	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2390	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2342	backend_poll (EV_A_ waittime);	2391	backend_poll (EV_A_ waittime);
2343	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2392	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2355	#if EV_IDLE_ENABLE	2404	#if EV_IDLE_ENABLE
2356	/* queue idle watchers unless other events are pending */	2405	/* queue idle watchers unless other events are pending */
2357	idle_reify (EV_A);	2406	idle_reify (EV_A);
2358	#endif	2407	#endif
2359		2408
		2409	#if EV_CHECK_ENABLE
2360	/* queue check watchers, to be executed first */	2410	/* queue check watchers, to be executed first */
2361	if (expect_false (checkcnt))	2411	if (expect_false (checkcnt))
2362	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2412	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2413	#endif
2363		2414
2364	EV_INVOKE_PENDING;	2415	EV_INVOKE_PENDING;
2365	}	2416	}
2366	while (expect_true (	2417	while (expect_true (
2367	activecnt	2418	activecnt
…		…
2370	));	2421	));
2371		2422
2372	if (loop_done == EVUNLOOP_ONE)	2423	if (loop_done == EVUNLOOP_ONE)
2373	loop_done = EVUNLOOP_CANCEL;	2424	loop_done = EVUNLOOP_CANCEL;
2374		2425
2375	#if EV_MINIMAL < 2	2426	#if EV_FEATURE_API
2376	--loop_depth;	2427	--loop_depth;
2377	#endif	2428	#endif
2378	}	2429	}
2379		2430
2380	void	2431	void
…		…
2506		2557
2507	if (expect_false (ev_is_active (w)))	2558	if (expect_false (ev_is_active (w)))
2508	return;	2559	return;
2509		2560
2510	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2561	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2511	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2562	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2512		2563
2513	EV_FREQUENT_CHECK;	2564	EV_FREQUENT_CHECK;
2514		2565
2515	ev_start (EV_A_ (W)w, 1);	2566	ev_start (EV_A_ (W)w, 1);
2516	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2567	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2586	timers [active] = timers [timercnt + HEAP0];	2637	timers [active] = timers [timercnt + HEAP0];
2587	adjustheap (timers, timercnt, active);	2638	adjustheap (timers, timercnt, active);
2588	}	2639	}
2589	}	2640	}
2590		2641
2591	EV_FREQUENT_CHECK;
2592
2593	ev_at (w) -= mn_now;	2642	ev_at (w) -= mn_now;
2594		2643
2595	ev_stop (EV_A_ (W)w);	2644	ev_stop (EV_A_ (W)w);
		2645
		2646	EV_FREQUENT_CHECK;
2596	}	2647	}
2597		2648
2598	void noinline	2649	void noinline
2599	ev_timer_again (EV_P_ ev_timer *w)	2650	ev_timer_again (EV_P_ ev_timer *w)
2600	{	2651	{
…		…
2679	periodics [active] = periodics [periodiccnt + HEAP0];	2730	periodics [active] = periodics [periodiccnt + HEAP0];
2680	adjustheap (periodics, periodiccnt, active);	2731	adjustheap (periodics, periodiccnt, active);
2681	}	2732	}
2682	}	2733	}
2683		2734
2684	EV_FREQUENT_CHECK;
2685
2686	ev_stop (EV_A_ (W)w);	2735	ev_stop (EV_A_ (W)w);
		2736
		2737	EV_FREQUENT_CHECK;
2687	}	2738	}
2688		2739
2689	void noinline	2740	void noinline
2690	ev_periodic_again (EV_P_ ev_periodic *w)	2741	ev_periodic_again (EV_P_ ev_periodic *w)
2691	{	2742	{
…		…
2696	#endif	2747	#endif
2697		2748
2698	#ifndef SA_RESTART	2749	#ifndef SA_RESTART
2699	# define SA_RESTART 0	2750	# define SA_RESTART 0
2700	#endif	2751	#endif
		2752
		2753	#if EV_SIGNAL_ENABLE
2701		2754
2702	void noinline	2755	void noinline
2703	ev_signal_start (EV_P_ ev_signal *w)	2756	ev_signal_start (EV_P_ ev_signal *w)
2704	{	2757	{
2705	if (expect_false (ev_is_active (w)))	2758	if (expect_false (ev_is_active (w)))
…		…
2752	if (!((WL)w)->next)	2805	if (!((WL)w)->next)
2753	# if EV_USE_SIGNALFD	2806	# if EV_USE_SIGNALFD
2754	if (sigfd < 0) /*TODO*/	2807	if (sigfd < 0) /*TODO*/
2755	# endif	2808	# endif
2756	{	2809	{
2757	# if _WIN32	2810	# ifdef _WIN32
		2811	evpipe_init (EV_A);
		2812
2758	signal (w->signum, ev_sighandler);	2813	signal (w->signum, ev_sighandler);
2759	# else	2814	# else
2760	struct sigaction sa;	2815	struct sigaction sa;
2761		2816
2762	evpipe_init (EV_A);	2817	evpipe_init (EV_A);
…		…
2793	signals [w->signum - 1].loop = 0; /* unattach from signal */	2848	signals [w->signum - 1].loop = 0; /* unattach from signal */
2794	#endif	2849	#endif
2795	#if EV_USE_SIGNALFD	2850	#if EV_USE_SIGNALFD
2796	if (sigfd >= 0)	2851	if (sigfd >= 0)
2797	{	2852	{
2798	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2853	sigset_t ss;
		2854
		2855	sigemptyset (&ss);
		2856	sigaddset (&ss, w->signum);
2799	sigdelset (&sigfd_set, w->signum);	2857	sigdelset (&sigfd_set, w->signum);
		2858
2800	signalfd (sigfd, &sigfd_set, 0);	2859	signalfd (sigfd, &sigfd_set, 0);
2801	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2860	sigprocmask (SIG_UNBLOCK, &ss, 0);
2802	/*TODO: maybe unblock signal? */
2803	}	2861	}
2804	else	2862	else
2805	#endif	2863	#endif
2806	signal (w->signum, SIG_DFL);	2864	signal (w->signum, SIG_DFL);
2807	}	2865	}
2808		2866
2809	EV_FREQUENT_CHECK;	2867	EV_FREQUENT_CHECK;
2810	}	2868	}
2811		2869
		2870	#endif
		2871
		2872	#if EV_CHILD_ENABLE
		2873
2812	void	2874	void
2813	ev_child_start (EV_P_ ev_child *w)	2875	ev_child_start (EV_P_ ev_child *w)
2814	{	2876	{
2815	#if EV_MULTIPLICITY	2877	#if EV_MULTIPLICITY
2816	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2878	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2819	return;	2881	return;
2820		2882
2821	EV_FREQUENT_CHECK;	2883	EV_FREQUENT_CHECK;
2822		2884
2823	ev_start (EV_A_ (W)w, 1);	2885	ev_start (EV_A_ (W)w, 1);
2824	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2886	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825		2887
2826	EV_FREQUENT_CHECK;	2888	EV_FREQUENT_CHECK;
2827	}	2889	}
2828		2890
2829	void	2891	void
…		…
2833	if (expect_false (!ev_is_active (w)))	2895	if (expect_false (!ev_is_active (w)))
2834	return;	2896	return;
2835		2897
2836	EV_FREQUENT_CHECK;	2898	EV_FREQUENT_CHECK;
2837		2899
2838	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2900	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839	ev_stop (EV_A_ (W)w);	2901	ev_stop (EV_A_ (W)w);
2840		2902
2841	EV_FREQUENT_CHECK;	2903	EV_FREQUENT_CHECK;
2842	}	2904	}
		2905
		2906	#endif
2843		2907
2844	#if EV_STAT_ENABLE	2908	#if EV_STAT_ENABLE
2845		2909
2846	# ifdef _WIN32	2910	# ifdef _WIN32
2847	# undef lstat	2911	# undef lstat
…		…
2853	#define MIN_STAT_INTERVAL 0.1074891	2917	#define MIN_STAT_INTERVAL 0.1074891
2854		2918
2855	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2919	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856		2920
2857	#if EV_USE_INOTIFY	2921	#if EV_USE_INOTIFY
2858	# define EV_INOTIFY_BUFSIZE 8192	2922
		2923	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2924	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859		2925
2860	static void noinline	2926	static void noinline
2861	infy_add (EV_P_ ev_stat *w)	2927	infy_add (EV_P_ ev_stat *w)
2862	{	2928	{
2863	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);	2929	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);
2864		2930
2865	if (w->wd < 0)	2931	if (w->wd >= 0)
		2932	{
		2933	struct statfs sfs;
		2934
		2935	/* now local changes will be tracked by inotify, but remote changes won't */
		2936	/* unless the filesystem is known to be local, we therefore still poll */
		2937	/* also do poll on <2.6.25, but with normal frequency */
		2938
		2939	if (!fs_2625)
		2940	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2941	else if (!statfs (w->path, &sfs)
		2942	&& (sfs.f_type == 0x1373 /* devfs */
		2943	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2944	|| sfs.f_type == 0x3153464a /* jfs */
		2945	|| sfs.f_type == 0x52654973 /* reiser3 */
		2946	|| sfs.f_type == 0x01021994 /* tempfs */
		2947	|| sfs.f_type == 0x58465342 /* xfs */))
		2948	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2949	else
		2950	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2866	{	2951	}
		2952	else
		2953	{
		2954	/* can't use inotify, continue to stat */
2867	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2955	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2868	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2869		2956
2870	/* monitor some parent directory for speedup hints */	2957	/* if path is not there, monitor some parent directory for speedup hints */
2871	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2958	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2872	/* but an efficiency issue only */	2959	/* but an efficiency issue only */
2873	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2960	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2874	{	2961	{
2875	char path [4096];	2962	char path [4096];
…		…
2891	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2978	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2892	}	2979	}
2893	}	2980	}
2894		2981
2895	if (w->wd >= 0)	2982	if (w->wd >= 0)
2896	{
2897	struct statfs sfs;
2898
2899	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2983	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2900		2984
2901	/* now local changes will be tracked by inotify, but remote changes won't */	2985	/* now re-arm timer, if required */
2902	/* unless the filesystem it known to be local, we therefore still poll */	2986	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2903	/* also do poll on <2.6.25, but with normal frequency */
2904
2905	if (fs_2625 && !statfs (w->path, &sfs))
2906	if (sfs.f_type == 0x1373 /* devfs */
2907	|| sfs.f_type == 0xEF53 /* ext2/3 */
2908	|| sfs.f_type == 0x3153464a /* jfs */
2909	|| sfs.f_type == 0x52654973 /* reiser3 */
2910	|| sfs.f_type == 0x01021994 /* tempfs */
2911	|| sfs.f_type == 0x58465342 /* xfs */)
2912	return;
2913
2914	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2915	ev_timer_again (EV_A_ &w->timer);	2987	ev_timer_again (EV_A_ &w->timer);
2916	}	2988	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2917	}	2989	}
2918		2990
2919	static void noinline	2991	static void noinline
2920	infy_del (EV_P_ ev_stat *w)	2992	infy_del (EV_P_ ev_stat *w)
2921	{	2993	{
…		…
2924		2996
2925	if (wd < 0)	2997	if (wd < 0)
2926	return;	2998	return;
2927		2999
2928	w->wd = -2;	3000	w->wd = -2;
2929	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3001	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2930	wlist_del (&fs_hash [slot].head, (WL)w);	3002	wlist_del (&fs_hash [slot].head, (WL)w);
2931		3003
2932	/* remove this watcher, if others are watching it, they will rearm */	3004	/* remove this watcher, if others are watching it, they will rearm */
2933	inotify_rm_watch (fs_fd, wd);	3005	inotify_rm_watch (fs_fd, wd);
2934	}	3006	}
…		…
2936	static void noinline	3008	static void noinline
2937	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3009	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2938	{	3010	{
2939	if (slot < 0)	3011	if (slot < 0)
2940	/* overflow, need to check for all hash slots */	3012	/* overflow, need to check for all hash slots */
2941	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3013	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2942	infy_wd (EV_A_ slot, wd, ev);	3014	infy_wd (EV_A_ slot, wd, ev);
2943	else	3015	else
2944	{	3016	{
2945	WL w_;	3017	WL w_;
2946		3018
2947	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3019	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2948	{	3020	{
2949	ev_stat *w = (ev_stat *)w_;	3021	ev_stat *w = (ev_stat *)w_;
2950	w_ = w_->next; /* lets us remove this watcher and all before it */	3022	w_ = w_->next; /* lets us remove this watcher and all before it */
2951		3023
2952	if (w->wd == wd || wd == -1)	3024	if (w->wd == wd || wd == -1)
2953	{	3025	{
2954	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3026	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2955	{	3027	{
2956	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3028	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2957	w->wd = -1;	3029	w->wd = -1;
2958	infy_add (EV_A_ w); /* re-add, no matter what */	3030	infy_add (EV_A_ w); /* re-add, no matter what */
2959	}	3031	}
2960		3032
2961	stat_timer_cb (EV_A_ &w->timer, 0);	3033	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2966		3038
2967	static void	3039	static void
2968	infy_cb (EV_P_ ev_io *w, int revents)	3040	infy_cb (EV_P_ ev_io *w, int revents)
2969	{	3041	{
2970	char buf [EV_INOTIFY_BUFSIZE];	3042	char buf [EV_INOTIFY_BUFSIZE];
2971	struct inotify_event *ev = (struct inotify_event *)buf;
2972	int ofs;	3043	int ofs;
2973	int len = read (fs_fd, buf, sizeof (buf));	3044	int len = read (fs_fd, buf, sizeof (buf));
2974		3045
2975	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3046	for (ofs = 0; ofs < len; )
		3047	{
		3048	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2976	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3049	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3050	ofs += sizeof (struct inotify_event) + ev->len;
		3051	}
		3052	}
		3053
		3054	inline_size unsigned int
		3055	ev_linux_version (void)
		3056	{
		3057	struct utsname buf;
		3058	unsigned int v;
		3059	int i;
		3060	char *p = buf.release;
		3061
		3062	if (uname (&buf))
		3063	return 0;
		3064
		3065	for (i = 3+1; --i; )
		3066	{
		3067	unsigned int c = 0;
		3068
		3069	for (;;)
		3070	{
		3071	if (*p >= '0' && *p <= '9')
		3072	c = c * 10 + *p++ - '0';
		3073	else
		3074	{
		3075	p += *p == '.';
		3076	break;
		3077	}
		3078	}
		3079
		3080	v = (v << 8) | c;
		3081	}
		3082
		3083	return v;
2977	}	3084	}
2978		3085
2979	inline_size void	3086	inline_size void
2980	check_2625 (EV_P)	3087	ev_check_2625 (EV_P)
2981	{	3088	{
2982	/* kernels < 2.6.25 are borked	3089	/* kernels < 2.6.25 are borked
2983	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3090	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2984	*/	3091	*/
2985	struct utsname buf;	3092	if (ev_linux_version () < 0x020619)
2986	int major, minor, micro;
2987
2988	if (uname (&buf))
2989	return;	3093	return;
2990		3094
2991	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2992	return;
2993
2994	if (major < 2
2995	|| (major == 2 && minor < 6)
2996	|| (major == 2 && minor == 6 && micro < 25))
2997	return;
2998
2999	fs_2625 = 1;	3095	fs_2625 = 1;
		3096	}
		3097
		3098	inline_size int
		3099	infy_newfd (void)
		3100	{
		3101	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3102	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3103	if (fd >= 0)
		3104	return fd;
		3105	#endif
		3106	return inotify_init ();
3000	}	3107	}
3001		3108
3002	inline_size void	3109	inline_size void
3003	infy_init (EV_P)	3110	infy_init (EV_P)
3004	{	3111	{
3005	if (fs_fd != -2)	3112	if (fs_fd != -2)
3006	return;	3113	return;
3007		3114
3008	fs_fd = -1;	3115	fs_fd = -1;
3009		3116
3010	check_2625 (EV_A);	3117	ev_check_2625 (EV_A);
3011		3118
3012	fs_fd = inotify_init ();	3119	fs_fd = infy_newfd ();
3013		3120
3014	if (fs_fd >= 0)	3121	if (fs_fd >= 0)
3015	{	3122	{
		3123	fd_intern (fs_fd);
3016	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3124	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
3017	ev_set_priority (&fs_w, EV_MAXPRI);	3125	ev_set_priority (&fs_w, EV_MAXPRI);
3018	ev_io_start (EV_A_ &fs_w);	3126	ev_io_start (EV_A_ &fs_w);
		3127	ev_unref (EV_A);
3019	}	3128	}
3020	}	3129	}
3021		3130
3022	inline_size void	3131	inline_size void
3023	infy_fork (EV_P)	3132	infy_fork (EV_P)
…		…
3025	int slot;	3134	int slot;
3026		3135
3027	if (fs_fd < 0)	3136	if (fs_fd < 0)
3028	return;	3137	return;
3029		3138
		3139	ev_ref (EV_A);
		3140	ev_io_stop (EV_A_ &fs_w);
3030	close (fs_fd);	3141	close (fs_fd);
3031	fs_fd = inotify_init ();	3142	fs_fd = infy_newfd ();
3032		3143
		3144	if (fs_fd >= 0)
		3145	{
		3146	fd_intern (fs_fd);
		3147	ev_io_set (&fs_w, fs_fd, EV_READ);
		3148	ev_io_start (EV_A_ &fs_w);
		3149	ev_unref (EV_A);
		3150	}
		3151
3033	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3152	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3034	{	3153	{
3035	WL w_ = fs_hash [slot].head;	3154	WL w_ = fs_hash [slot].head;
3036	fs_hash [slot].head = 0;	3155	fs_hash [slot].head = 0;
3037		3156
3038	while (w_)	3157	while (w_)
…		…
3043	w->wd = -1;	3162	w->wd = -1;
3044		3163
3045	if (fs_fd >= 0)	3164	if (fs_fd >= 0)
3046	infy_add (EV_A_ w); /* re-add, no matter what */	3165	infy_add (EV_A_ w); /* re-add, no matter what */
3047	else	3166	else
		3167	{
		3168	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3169	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3048	ev_timer_again (EV_A_ &w->timer);	3170	ev_timer_again (EV_A_ &w->timer);
		3171	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3172	}
3049	}	3173	}
3050	}	3174	}
3051	}	3175	}
3052		3176
3053	#endif	3177	#endif
…		…
3070	static void noinline	3194	static void noinline
3071	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3195	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3072	{	3196	{
3073	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3197	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3074		3198
3075	/* we copy this here each the time so that */	3199	ev_statdata prev = w->attr;
3076	/* prev has the old value when the callback gets invoked */
3077	w->prev = w->attr;
3078	ev_stat_stat (EV_A_ w);	3200	ev_stat_stat (EV_A_ w);
3079		3201
3080	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3202	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3081	if (	3203	if (
3082	w->prev.st_dev != w->attr.st_dev	3204	prev.st_dev != w->attr.st_dev
3083	|| w->prev.st_ino != w->attr.st_ino	3205	|| prev.st_ino != w->attr.st_ino
3084	|| w->prev.st_mode != w->attr.st_mode	3206	|| prev.st_mode != w->attr.st_mode
3085	|| w->prev.st_nlink != w->attr.st_nlink	3207	|| prev.st_nlink != w->attr.st_nlink
3086	|| w->prev.st_uid != w->attr.st_uid	3208	|| prev.st_uid != w->attr.st_uid
3087	|| w->prev.st_gid != w->attr.st_gid	3209	|| prev.st_gid != w->attr.st_gid
3088	|| w->prev.st_rdev != w->attr.st_rdev	3210	|| prev.st_rdev != w->attr.st_rdev
3089	|| w->prev.st_size != w->attr.st_size	3211	|| prev.st_size != w->attr.st_size
3090	|| w->prev.st_atime != w->attr.st_atime	3212	|| prev.st_atime != w->attr.st_atime
3091	|| w->prev.st_mtime != w->attr.st_mtime	3213	|| prev.st_mtime != w->attr.st_mtime
3092	|| w->prev.st_ctime != w->attr.st_ctime	3214	|| prev.st_ctime != w->attr.st_ctime
3093	) {	3215	) {
		3216	/* we only update w->prev on actual differences */
		3217	/* in case we test more often than invoke the callback, */
		3218	/* to ensure that prev is always different to attr */
		3219	w->prev = prev;
		3220
3094	#if EV_USE_INOTIFY	3221	#if EV_USE_INOTIFY
3095	if (fs_fd >= 0)	3222	if (fs_fd >= 0)
3096	{	3223	{
3097	infy_del (EV_A_ w);	3224	infy_del (EV_A_ w);
3098	infy_add (EV_A_ w);	3225	infy_add (EV_A_ w);
…		…
3123		3250
3124	if (fs_fd >= 0)	3251	if (fs_fd >= 0)
3125	infy_add (EV_A_ w);	3252	infy_add (EV_A_ w);
3126	else	3253	else
3127	#endif	3254	#endif
		3255	{
3128	ev_timer_again (EV_A_ &w->timer);	3256	ev_timer_again (EV_A_ &w->timer);
		3257	ev_unref (EV_A);
		3258	}
3129		3259
3130	ev_start (EV_A_ (W)w, 1);	3260	ev_start (EV_A_ (W)w, 1);
3131		3261
3132	EV_FREQUENT_CHECK;	3262	EV_FREQUENT_CHECK;
3133	}	3263	}
…		…
3142	EV_FREQUENT_CHECK;	3272	EV_FREQUENT_CHECK;
3143		3273
3144	#if EV_USE_INOTIFY	3274	#if EV_USE_INOTIFY
3145	infy_del (EV_A_ w);	3275	infy_del (EV_A_ w);
3146	#endif	3276	#endif
		3277
		3278	if (ev_is_active (&w->timer))
		3279	{
		3280	ev_ref (EV_A);
3147	ev_timer_stop (EV_A_ &w->timer);	3281	ev_timer_stop (EV_A_ &w->timer);
		3282	}
3148		3283
3149	ev_stop (EV_A_ (W)w);	3284	ev_stop (EV_A_ (W)w);
3150		3285
3151	EV_FREQUENT_CHECK;	3286	EV_FREQUENT_CHECK;
3152	}	3287	}
…		…
3197		3332
3198	EV_FREQUENT_CHECK;	3333	EV_FREQUENT_CHECK;
3199	}	3334	}
3200	#endif	3335	#endif
3201		3336
		3337	#if EV_PREPARE_ENABLE
3202	void	3338	void
3203	ev_prepare_start (EV_P_ ev_prepare *w)	3339	ev_prepare_start (EV_P_ ev_prepare *w)
3204	{	3340	{
3205	if (expect_false (ev_is_active (w)))	3341	if (expect_false (ev_is_active (w)))
3206	return;	3342	return;
…		…
3232		3368
3233	ev_stop (EV_A_ (W)w);	3369	ev_stop (EV_A_ (W)w);
3234		3370
3235	EV_FREQUENT_CHECK;	3371	EV_FREQUENT_CHECK;
3236	}	3372	}
		3373	#endif
3237		3374
		3375	#if EV_CHECK_ENABLE
3238	void	3376	void
3239	ev_check_start (EV_P_ ev_check *w)	3377	ev_check_start (EV_P_ ev_check *w)
3240	{	3378	{
3241	if (expect_false (ev_is_active (w)))	3379	if (expect_false (ev_is_active (w)))
3242	return;	3380	return;
…		…
3268		3406
3269	ev_stop (EV_A_ (W)w);	3407	ev_stop (EV_A_ (W)w);
3270		3408
3271	EV_FREQUENT_CHECK;	3409	EV_FREQUENT_CHECK;
3272	}	3410	}
		3411	#endif
3273		3412
3274	#if EV_EMBED_ENABLE	3413	#if EV_EMBED_ENABLE
3275	void noinline	3414	void noinline
3276	ev_embed_sweep (EV_P_ ev_embed *w)	3415	ev_embed_sweep (EV_P_ ev_embed *w)
3277	{	3416	{
…		…
3372		3511
3373	ev_io_stop (EV_A_ &w->io);	3512	ev_io_stop (EV_A_ &w->io);
3374	ev_prepare_stop (EV_A_ &w->prepare);	3513	ev_prepare_stop (EV_A_ &w->prepare);
3375	ev_fork_stop (EV_A_ &w->fork);	3514	ev_fork_stop (EV_A_ &w->fork);
3376		3515
		3516	ev_stop (EV_A_ (W)w);
		3517
3377	EV_FREQUENT_CHECK;	3518	EV_FREQUENT_CHECK;
3378	}	3519	}
3379	#endif	3520	#endif
3380		3521
3381	#if EV_FORK_ENABLE	3522	#if EV_FORK_ENABLE
…		…
3507	{	3648	{
3508	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3649	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3509		3650
3510	if (expect_false (!once))	3651	if (expect_false (!once))
3511	{	3652	{
3512	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3653	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3513	return;	3654	return;
3514	}	3655	}
3515		3656
3516	once->cb = cb;	3657	once->cb = cb;
3517	once->arg = arg;	3658	once->arg = arg;
…		…
3604	if (types & EV_ASYNC)	3745	if (types & EV_ASYNC)
3605	for (i = asynccnt; i--; )	3746	for (i = asynccnt; i--; )
3606	cb (EV_A_ EV_ASYNC, asyncs [i]);	3747	cb (EV_A_ EV_ASYNC, asyncs [i]);
3607	#endif	3748	#endif
3608		3749
		3750	#if EV_PREPARE_ENABLE
3609	if (types & EV_PREPARE)	3751	if (types & EV_PREPARE)
3610	for (i = preparecnt; i--; )	3752	for (i = preparecnt; i--; )
3611	#if EV_EMBED_ENABLE	3753	# if EV_EMBED_ENABLE
3612	if (ev_cb (prepares [i]) != embed_prepare_cb)	3754	if (ev_cb (prepares [i]) != embed_prepare_cb)
3613	#endif	3755	# endif
3614	cb (EV_A_ EV_PREPARE, prepares [i]);	3756	cb (EV_A_ EV_PREPARE, prepares [i]);
		3757	#endif
3615		3758
		3759	#if EV_CHECK_ENABLE
3616	if (types & EV_CHECK)	3760	if (types & EV_CHECK)
3617	for (i = checkcnt; i--; )	3761	for (i = checkcnt; i--; )
3618	cb (EV_A_ EV_CHECK, checks [i]);	3762	cb (EV_A_ EV_CHECK, checks [i]);
		3763	#endif
3619		3764
		3765	#if EV_SIGNAL_ENABLE
3620	if (types & EV_SIGNAL)	3766	if (types & EV_SIGNAL)
3621	for (i = 0; i < EV_NSIG - 1; ++i)	3767	for (i = 0; i < EV_NSIG - 1; ++i)
3622	for (wl = signals [i].head; wl; )	3768	for (wl = signals [i].head; wl; )
3623	{	3769	{
3624	wn = wl->next;	3770	wn = wl->next;
3625	cb (EV_A_ EV_SIGNAL, wl);	3771	cb (EV_A_ EV_SIGNAL, wl);
3626	wl = wn;	3772	wl = wn;
3627	}	3773	}
		3774	#endif
3628		3775
		3776	#if EV_CHILD_ENABLE
3629	if (types & EV_CHILD)	3777	if (types & EV_CHILD)
3630	for (i = EV_PID_HASHSIZE; i--; )	3778	for (i = (EV_PID_HASHSIZE); i--; )
3631	for (wl = childs [i]; wl; )	3779	for (wl = childs [i]; wl; )
3632	{	3780	{
3633	wn = wl->next;	3781	wn = wl->next;
3634	cb (EV_A_ EV_CHILD, wl);	3782	cb (EV_A_ EV_CHILD, wl);
3635	wl = wn;	3783	wl = wn;
3636	}	3784	}
		3785	#endif
3637	/* EV_STAT 0x00001000 /* stat data changed */	3786	/* EV_STAT 0x00001000 /* stat data changed */
3638	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3787	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3639	}	3788	}
3640	#endif	3789	#endif
3641		3790

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