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

Comparing libev/ev.c (file contents):
Revision 1.311 by root, Wed Jul 29 09:36:05 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__ >= 9))	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
406	#if EV_USE_SIGNALFD	417	#if EV_USE_SIGNALFD
407	# include <sys/signalfd.h>	418	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		419	# include <stdint.h>
		420	# ifndef SFD_NONBLOCK
		421	# define SFD_NONBLOCK O_NONBLOCK
408	#endif	422	# endif
		423	# ifndef SFD_CLOEXEC
		424	# ifdef O_CLOEXEC
		425	# define SFD_CLOEXEC O_CLOEXEC
		426	# else
		427	# define SFD_CLOEXEC 02000000
		428	# endif
		429	# endif
		430	# ifdef __cplusplus
		431	extern "C" {
		432	# endif
		433	int signalfd (int fd, const sigset_t *mask, int flags);
		434
		435	struct signalfd_siginfo
		436	{
		437	uint32_t ssi_signo;
		438	char pad[128 - sizeof (uint32_t)];
		439	};
		440	# ifdef __cplusplus
		441	}
		442	# endif
		443	#endif
		444
409		445
410	/**/	446	/**/
411		447
412	#if EV_VERIFY >= 3	448	#if EV_VERIFY >= 3
413	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	449	# define EV_FREQUENT_CHECK ev_verify (EV_A)
414	#else	450	#else
415	# define EV_FREQUENT_CHECK do { } while (0)	451	# define EV_FREQUENT_CHECK do { } while (0)
416	#endif	452	#endif
417		453
418	/*	454	/*
…		…
425	*/	461	*/
426	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	462	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
427		463
428	#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) */
429	#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) */
430	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
431		466
432	#if __GNUC__ >= 4	467	#if __GNUC__ >= 4
433	# define expect(expr,value) __builtin_expect ((expr),(value))	468	# define expect(expr,value) __builtin_expect ((expr),(value))
434	# define noinline __attribute__ ((noinline))	469	# define noinline __attribute__ ((noinline))
435	#else	470	#else
…		…
442		477
443	#define expect_false(expr) expect ((expr) != 0, 0)	478	#define expect_false(expr) expect ((expr) != 0, 0)
444	#define expect_true(expr) expect ((expr) != 0, 1)	479	#define expect_true(expr) expect ((expr) != 0, 1)
445	#define inline_size static inline	480	#define inline_size static inline
446		481
447	#if EV_MINIMAL	482	#if EV_FEATURE_CODE
		483	# define inline_speed static inline
		484	#else
448	# define inline_speed static noinline	485	# define inline_speed static noinline
449	#else
450	# define inline_speed static inline
451	#endif	486	#endif
452		487
453	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	488	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454		489
455	#if EV_MINPRI == EV_MAXPRI	490	#if EV_MINPRI == EV_MAXPRI
…		…
476		511
477	#if EV_USE_MONOTONIC	512	#if EV_USE_MONOTONIC
478	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	513	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
479	#endif	514	#endif
480		515
		516	#ifndef EV_FD_TO_WIN32_HANDLE
		517	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		518	#endif
		519	#ifndef EV_WIN32_HANDLE_TO_FD
		520	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		521	#endif
		522	#ifndef EV_WIN32_CLOSE_FD
		523	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		524	#endif
		525
481	#ifdef _WIN32	526	#ifdef _WIN32
482	# include "ev_win32.c"	527	# include "ev_win32.c"
483	#endif	528	#endif
484		529
485	/*****************************************************************************/	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
486		539
487	static void (syserr_cb)(const char msg);	540	static void (syserr_cb)(const char msg);
488		541
489	void	542	void
490	ev_set_syserr_cb (void (cb)(const char msg))	543	ev_set_syserr_cb (void (cb)(const char msg))
…		…
500		553
501	if (syserr_cb)	554	if (syserr_cb)
502	syserr_cb (msg);	555	syserr_cb (msg);
503	else	556	else
504	{	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
505	perror (msg);	566	perror (msg);
		567	#endif
506	abort ();	568	abort ();
507	}	569	}
508	}	570	}
509		571
510	static void *	572	static void *
511	ev_realloc_emul (void *ptr, long size)	573	ev_realloc_emul (void *ptr, long size)
512	{	574	{
		575	#if __GLIBC__
		576	return realloc (ptr, size);
		577	#else
513	/* some systems, notably openbsd and darwin, fail to properly	578	/* some systems, notably openbsd and darwin, fail to properly
514	* 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
515	* the single unix specification, so work around them here.	580	* the single unix specification, so work around them here.
516	*/	581	*/
517		582
518	if (size)	583	if (size)
519	return realloc (ptr, size);	584	return realloc (ptr, size);
520		585
521	free (ptr);	586	free (ptr);
522	return 0;	587	return 0;
		588	#endif
523	}	589	}
524		590
525	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	591	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
526		592
527	void	593	void
…		…
535	{	601	{
536	ptr = alloc (ptr, size);	602	ptr = alloc (ptr, size);
537		603
538	if (!ptr && size)	604	if (!ptr && size)
539	{	605	{
		606	#if EV_AVOID_STDIO
		607	ev_printerr ("libev: memory allocation failed, aborting.\n");
		608	#else
540	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	609	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		610	#endif
541	abort ();	611	abort ();
542	}	612	}
543		613
544	return ptr;	614	return ptr;
545	}	615	}
…		…
627		697
628	static int ev_default_loop_ptr;	698	static int ev_default_loop_ptr;
629		699
630	#endif	700	#endif
631		701
632	#if EV_MINIMAL < 2	702	#if EV_FEATURE_API
633	# 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)
634	# 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)
635	# define EV_INVOKE_PENDING invoke_cb (EV_A)	705	# define EV_INVOKE_PENDING invoke_cb (EV_A)
636	#else	706	#else
637	# define EV_RELEASE_CB (void)0	707	# define EV_RELEASE_CB (void)0
…		…
822	}	892	}
823		893
824	/*****************************************************************************/	894	/*****************************************************************************/
825		895
826	inline_speed void	896	inline_speed void
827	fd_event_nc (EV_P_ int fd, int revents)	897	fd_event_nocheck (EV_P_ int fd, int revents)
828	{	898	{
829	ANFD *anfd = anfds + fd;	899	ANFD *anfd = anfds + fd;
830	ev_io *w;	900	ev_io *w;
831		901
832	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)
…		…
844	fd_event (EV_P_ int fd, int revents)	914	fd_event (EV_P_ int fd, int revents)
845	{	915	{
846	ANFD *anfd = anfds + fd;	916	ANFD *anfd = anfds + fd;
847		917
848	if (expect_true (!anfd->reify))	918	if (expect_true (!anfd->reify))
849	fd_event_nc (EV_A_ fd, revents);	919	fd_event_nocheck (EV_A_ fd, revents);
850	}	920	}
851		921
852	void	922	void
853	ev_feed_fd_event (EV_P_ int fd, int revents)	923	ev_feed_fd_event (EV_P_ int fd, int revents)
854	{	924	{
855	if (fd >= 0 && fd < anfdmax)	925	if (fd >= 0 && fd < anfdmax)
856	fd_event_nc (EV_A_ fd, revents);	926	fd_event_nocheck (EV_A_ fd, revents);
857	}	927	}
858		928
859	/* make sure the external fd watch events are in-sync */	929	/* make sure the external fd watch events are in-sync */
860	/* with the kernel/libev internal state */	930	/* with the kernel/libev internal state */
861	inline_size void	931	inline_size void
…		…
876		946
877	#if EV_SELECT_IS_WINSOCKET	947	#if EV_SELECT_IS_WINSOCKET
878	if (events)	948	if (events)
879	{	949	{
880	unsigned long arg;	950	unsigned long arg;
881	#ifdef EV_FD_TO_WIN32_HANDLE
882	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	951	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
883	#else
884	anfd->handle = _get_osfhandle (fd);
885	#endif
886	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	952	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
887	}	953	}
888	#endif	954	#endif
889		955
890	{	956	{
…		…
928	ev_io_stop (EV_A_ w);	994	ev_io_stop (EV_A_ w);
929	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);
930	}	996	}
931	}	997	}
932		998
933	/* check whether the given fd is atcually valid, for error recovery */	999	/* check whether the given fd is actually valid, for error recovery */
934	inline_size int	1000	inline_size int
935	fd_valid (int fd)	1001	fd_valid (int fd)
936	{	1002	{
937	#ifdef _WIN32	1003	#ifdef _WIN32
938	return _get_osfhandle (fd) != -1;	1004	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
939	#else	1005	#else
940	return fcntl (fd, F_GETFD) != -1;	1006	return fcntl (fd, F_GETFD) != -1;
941	#endif	1007	#endif
942	}	1008	}
943		1009
…		…
978	{	1044	{
979	anfds [fd].events = 0;	1045	anfds [fd].events = 0;
980	anfds [fd].emask = 0;	1046	anfds [fd].emask = 0;
981	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1047	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
982	}	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
983	}	1063	}
984		1064
985	/*****************************************************************************/	1065	/*****************************************************************************/
986		1066
987	/*	1067	/*
…		…
1141		1221
1142	static ANSIG signals [EV_NSIG - 1];	1222	static ANSIG signals [EV_NSIG - 1];
1143		1223
1144	/*****************************************************************************/	1224	/*****************************************************************************/
1145		1225
1146	/* used to prepare libev internal fd's */	1226	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1147	/* this is not fork-safe */
1148	inline_speed void
1149	fd_intern (int fd)
1150	{
1151	#ifdef _WIN32
1152	unsigned long arg = 1;
1153	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1154	#else
1155	fcntl (fd, F_SETFD, FD_CLOEXEC);
1156	fcntl (fd, F_SETFL, O_NONBLOCK);
1157	#endif
1158	}
1159		1227
1160	static void noinline	1228	static void noinline
1161	evpipe_init (EV_P)	1229	evpipe_init (EV_P)
1162	{	1230	{
1163	if (!ev_is_active (&pipe_w))	1231	if (!ev_is_active (&pipe_w))
1164	{	1232	{
1165	#if EV_USE_EVENTFD	1233	# if EV_USE_EVENTFD
1166	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	1234	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1167	if (evfd < 0 && errno == EINVAL)	1235	if (evfd < 0 && errno == EINVAL)
1168	evfd = eventfd (0, 0);	1236	evfd = eventfd (0, 0);
1169		1237
1170	if (evfd >= 0)	1238	if (evfd >= 0)
…		…
1172	evpipe [0] = -1;	1240	evpipe [0] = -1;
1173	fd_intern (evfd); /* doing it twice doesn't hurt */	1241	fd_intern (evfd); /* doing it twice doesn't hurt */
1174	ev_io_set (&pipe_w, evfd, EV_READ);	1242	ev_io_set (&pipe_w, evfd, EV_READ);
1175	}	1243	}
1176	else	1244	else
1177	#endif	1245	# endif
1178	{	1246	{
1179	while (pipe (evpipe))	1247	while (pipe (evpipe))
1180	ev_syserr ("(libev) error creating signal/async pipe");	1248	ev_syserr ("(libev) error creating signal/async pipe");
1181		1249
1182	fd_intern (evpipe [0]);	1250	fd_intern (evpipe [0]);
…		…
1193	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1261	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1194	{	1262	{
1195	if (!*flag)	1263	if (!*flag)
1196	{	1264	{
1197	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;
1198		1267
1199	*flag = 1;	1268	*flag = 1;
1200		1269
1201	#if EV_USE_EVENTFD	1270	#if EV_USE_EVENTFD
1202	if (evfd >= 0)	1271	if (evfd >= 0)
…		…
1204	uint64_t counter = 1;	1273	uint64_t counter = 1;
1205	write (evfd, &counter, sizeof (uint64_t));	1274	write (evfd, &counter, sizeof (uint64_t));
1206	}	1275	}
1207	else	1276	else
1208	#endif	1277	#endif
1209	write (evpipe [1], &old_errno, 1);	1278	write (evpipe [1], &dummy, 1);
1210		1279
1211	errno = old_errno;	1280	errno = old_errno;
1212	}	1281	}
1213	}	1282	}
1214		1283
…		…
1263	{	1332	{
1264	#if EV_MULTIPLICITY	1333	#if EV_MULTIPLICITY
1265	EV_P = signals [signum - 1].loop;	1334	EV_P = signals [signum - 1].loop;
1266	#endif	1335	#endif
1267		1336
1268	#if _WIN32	1337	#ifdef _WIN32
1269	signal (signum, ev_sighandler);	1338	signal (signum, ev_sighandler);
1270	#endif	1339	#endif
1271		1340
1272	signals [signum - 1].pending = 1;	1341	signals [signum - 1].pending = 1;
1273	evpipe_write (EV_A_ &sig_pending);	1342	evpipe_write (EV_A_ &sig_pending);
…		…
1315	break;	1384	break;
1316	}	1385	}
1317	}	1386	}
1318	#endif	1387	#endif
1319		1388
		1389	#endif
		1390
1320	/*****************************************************************************/	1391	/*****************************************************************************/
1321		1392
		1393	#if EV_CHILD_ENABLE
1322	static WL childs [EV_PID_HASHSIZE];	1394	static WL childs [EV_PID_HASHSIZE];
1323
1324	#ifndef _WIN32
1325		1395
1326	static ev_signal childev;	1396	static ev_signal childev;
1327		1397
1328	#ifndef WIFCONTINUED	1398	#ifndef WIFCONTINUED
1329	# define WIFCONTINUED(status) 0	1399	# define WIFCONTINUED(status) 0
…		…
1334	child_reap (EV_P_ int chain, int pid, int status)	1404	child_reap (EV_P_ int chain, int pid, int status)
1335	{	1405	{
1336	ev_child *w;	1406	ev_child *w;
1337	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1407	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1338		1408
1339	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)
1340	{	1410	{
1341	if ((w->pid == pid \|\| !w->pid)	1411	if ((w->pid == pid \|\| !w->pid)
1342	&& (!traced \|\| (w->flags & 1)))	1412	&& (!traced \|\| (w->flags & 1)))
1343	{	1413	{
1344	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 */
…		…
1369	/* 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 */
1370	/* 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 */
1371	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1441	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1372		1442
1373	child_reap (EV_A_ pid, pid, status);	1443	child_reap (EV_A_ pid, pid, status);
1374	if (EV_PID_HASHSIZE > 1)	1444	if ((EV_PID_HASHSIZE) > 1)
1375	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 */
1376	}	1446	}
1377		1447
1378	#endif	1448	#endif
1379		1449
…		…
1446	#ifdef __APPLE__	1516	#ifdef __APPLE__
1447	/* only select works correctly on that "unix-certified" platform */	1517	/* only select works correctly on that "unix-certified" platform */
1448	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1518	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1449	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 */
1450	#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
1451		1524
1452	return flags;	1525	return flags;
1453	}	1526	}
1454		1527
1455	unsigned int	1528	unsigned int
…		…
1468	ev_backend (EV_P)	1541	ev_backend (EV_P)
1469	{	1542	{
1470	return backend;	1543	return backend;
1471	}	1544	}
1472		1545
1473	#if EV_MINIMAL < 2	1546	#if EV_FEATURE_API
1474	unsigned int	1547	unsigned int
1475	ev_loop_count (EV_P)	1548	ev_iteration (EV_P)
1476	{	1549	{
1477	return loop_count;	1550	return loop_count;
1478	}	1551	}
1479		1552
1480	unsigned int	1553	unsigned int
1481	ev_loop_depth (EV_P)	1554	ev_depth (EV_P)
1482	{	1555	{
1483	return loop_depth;	1556	return loop_depth;
1484	}	1557	}
1485		1558
1486	void	1559	void
…		…
1558		1631
1559	ev_rt_now = ev_time ();	1632	ev_rt_now = ev_time ();
1560	mn_now = get_clock ();	1633	mn_now = get_clock ();
1561	now_floor = mn_now;	1634	now_floor = mn_now;
1562	rtmn_diff = ev_rt_now - mn_now;	1635	rtmn_diff = ev_rt_now - mn_now;
1563	#if EV_MINIMAL < 2	1636	#if EV_FEATURE_API
1564	invoke_cb = ev_invoke_pending;	1637	invoke_cb = ev_invoke_pending;
1565	#endif	1638	#endif
1566		1639
1567	io_blocktime = 0.;	1640	io_blocktime = 0.;
1568	timeout_blocktime = 0.;	1641	timeout_blocktime = 0.;
…		…
1574	#endif	1647	#endif
1575	#if EV_USE_INOTIFY	1648	#if EV_USE_INOTIFY
1576	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1649	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1577	#endif	1650	#endif
1578	#if EV_USE_SIGNALFD	1651	#if EV_USE_SIGNALFD
1579	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1652	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1580	#endif	1653	#endif
1581		1654
1582	if (!(flags & 0x0000ffffU))	1655	if (!(flags & 0x0000ffffU))
1583	flags \|= ev_recommended_backends ();	1656	flags \|= ev_recommended_backends ();
1584		1657
…		…
1598	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1671	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1599	#endif	1672	#endif
1600		1673
1601	ev_prepare_init (&pending_w, pendingcb);	1674	ev_prepare_init (&pending_w, pendingcb);
1602		1675
		1676	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1603	ev_init (&pipe_w, pipecb);	1677	ev_init (&pipe_w, pipecb);
1604	ev_set_priority (&pipe_w, EV_MAXPRI);	1678	ev_set_priority (&pipe_w, EV_MAXPRI);
		1679	#endif
1605	}	1680	}
1606	}	1681	}
1607		1682
1608	/* free up a loop structure */	1683	/* free up a loop structure */
1609	static void noinline	1684	static void noinline
…		…
1621	close (evfd);	1696	close (evfd);
1622	#endif	1697	#endif
1623		1698
1624	if (evpipe [0] >= 0)	1699	if (evpipe [0] >= 0)
1625	{	1700	{
1626	close (evpipe [0]);	1701	EV_WIN32_CLOSE_FD (evpipe [0]);
1627	close (evpipe [1]);	1702	EV_WIN32_CLOSE_FD (evpipe [1]);
1628	}	1703	}
1629	}	1704	}
1630		1705
1631	#if EV_USE_SIGNALFD	1706	#if EV_USE_SIGNALFD
1632	if (ev_is_active (&sigfd_w))	1707	if (ev_is_active (&sigfd_w))
1633	{
1634	/ev_ref (EV_A);/
1635	/ev_io_stop (EV_A_ &sigfd_w);/
1636
1637	close (sigfd);	1708	close (sigfd);
1638	}
1639	#endif	1709	#endif
1640		1710
1641	#if EV_USE_INOTIFY	1711	#if EV_USE_INOTIFY
1642	if (fs_fd >= 0)	1712	if (fs_fd >= 0)
1643	close (fs_fd);	1713	close (fs_fd);
…		…
1728	close (evfd);	1798	close (evfd);
1729	#endif	1799	#endif
1730		1800
1731	if (evpipe [0] >= 0)	1801	if (evpipe [0] >= 0)
1732	{	1802	{
1733	close (evpipe [0]);	1803	EV_WIN32_CLOSE_FD (evpipe [0]);
1734	close (evpipe [1]);	1804	EV_WIN32_CLOSE_FD (evpipe [1]);
1735	}	1805	}
1736		1806
		1807	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1737	evpipe_init (EV_A);	1808	evpipe_init (EV_A);
1738	/* now iterate over everything, in case we missed something */	1809	/* now iterate over everything, in case we missed something */
1739	pipecb (EV_A_ &pipe_w, EV_READ);	1810	pipecb (EV_A_ &pipe_w, EV_READ);
		1811	#endif
1740	}	1812	}
1741		1813
1742	postfork = 0;	1814	postfork = 0;
1743	}	1815	}
1744		1816
…		…
1806	verify_watcher (EV_A_ ws [cnt]);	1878	verify_watcher (EV_A_ ws [cnt]);
1807	}	1879	}
1808	}	1880	}
1809	#endif	1881	#endif
1810		1882
1811	#if EV_MINIMAL < 2	1883	#if EV_FEATURE_API
1812	void	1884	void
1813	ev_loop_verify (EV_P)	1885	ev_verify (EV_P)
1814	{	1886	{
1815	#if EV_VERIFY	1887	#if EV_VERIFY
1816	int i;	1888	int i;
1817	WL w;	1889	WL w;
1818		1890
…		…
1857	#if EV_ASYNC_ENABLE	1929	#if EV_ASYNC_ENABLE
1858	assert (asyncmax >= asynccnt);	1930	assert (asyncmax >= asynccnt);
1859	array_verify (EV_A_ (W *)asyncs, asynccnt);	1931	array_verify (EV_A_ (W *)asyncs, asynccnt);
1860	#endif	1932	#endif
1861		1933
		1934	#if EV_PREPARE_ENABLE
1862	assert (preparemax >= preparecnt);	1935	assert (preparemax >= preparecnt);
1863	array_verify (EV_A_ (W *)prepares, preparecnt);	1936	array_verify (EV_A_ (W *)prepares, preparecnt);
		1937	#endif
1864		1938
		1939	#if EV_CHECK_ENABLE
1865	assert (checkmax >= checkcnt);	1940	assert (checkmax >= checkcnt);
1866	array_verify (EV_A_ (W *)checks, checkcnt);	1941	array_verify (EV_A_ (W *)checks, checkcnt);
		1942	#endif
1867		1943
1868	# if 0	1944	# if 0
		1945	#if EV_CHILD_ENABLE
1869	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)
1870	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1947	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1948	#endif
1871	# endif	1949	# endif
1872	#endif	1950	#endif
1873	}	1951	}
1874	#endif	1952	#endif
1875		1953
…		…
1891		1969
1892	loop_init (EV_A_ flags);	1970	loop_init (EV_A_ flags);
1893		1971
1894	if (ev_backend (EV_A))	1972	if (ev_backend (EV_A))
1895	{	1973	{
1896	#ifndef _WIN32	1974	#if EV_CHILD_ENABLE
1897	ev_signal_init (&childev, childcb, SIGCHLD);	1975	ev_signal_init (&childev, childcb, SIGCHLD);
1898	ev_set_priority (&childev, EV_MAXPRI);	1976	ev_set_priority (&childev, EV_MAXPRI);
1899	ev_signal_start (EV_A_ &childev);	1977	ev_signal_start (EV_A_ &childev);
1900	ev_unref (EV_A); /* child watcher should not keep loop alive */	1978	ev_unref (EV_A); /* child watcher should not keep loop alive */
1901	#endif	1979	#endif
…		…
1914	EV_P = ev_default_loop_ptr;	1992	EV_P = ev_default_loop_ptr;
1915	#endif	1993	#endif
1916		1994
1917	ev_default_loop_ptr = 0;	1995	ev_default_loop_ptr = 0;
1918		1996
1919	#ifndef _WIN32	1997	#if EV_CHILD_ENABLE
1920	ev_ref (EV_A); /* child watcher */	1998	ev_ref (EV_A); /* child watcher */
1921	ev_signal_stop (EV_A_ &childev);	1999	ev_signal_stop (EV_A_ &childev);
1922	#endif	2000	#endif
1923		2001
1924	loop_destroy (EV_A);	2002	loop_destroy (EV_A);
…		…
2030	EV_FREQUENT_CHECK;	2108	EV_FREQUENT_CHECK;
2031	feed_reverse (EV_A_ (W)w);	2109	feed_reverse (EV_A_ (W)w);
2032	}	2110	}
2033	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2111	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2034		2112
2035	feed_reverse_done (EV_A_ EV_TIMEOUT);	2113	feed_reverse_done (EV_A_ EV_TIMER);
2036	}	2114	}
2037	}	2115	}
2038		2116
2039	#if EV_PERIODIC_ENABLE	2117	#if EV_PERIODIC_ENABLE
2040	/* make periodics pending */	2118	/* make periodics pending */
…		…
2131	ANHE_at_cache (*he);	2209	ANHE_at_cache (*he);
2132	}	2210	}
2133	}	2211	}
2134		2212
2135	/* fetch new monotonic and realtime times from the kernel */	2213	/* fetch new monotonic and realtime times from the kernel */
2136	/* also detetc if there was a timejump, and act accordingly */	2214	/* also detect if there was a timejump, and act accordingly */
2137	inline_speed void	2215	inline_speed void
2138	time_update (EV_P_ ev_tstamp max_block)	2216	time_update (EV_P_ ev_tstamp max_block)
2139	{	2217	{
2140	#if EV_USE_MONOTONIC	2218	#if EV_USE_MONOTONIC
2141	if (expect_true (have_monotonic))	2219	if (expect_true (have_monotonic))
…		…
2201	}	2279	}
2202		2280
2203	void	2281	void
2204	ev_loop (EV_P_ int flags)	2282	ev_loop (EV_P_ int flags)
2205	{	2283	{
2206	#if EV_MINIMAL < 2	2284	#if EV_FEATURE_API
2207	++loop_depth;	2285	++loop_depth;
2208	#endif	2286	#endif
2209		2287
2210	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));
2211		2289
…		…
2214	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 */
2215		2293
2216	do	2294	do
2217	{	2295	{
2218	#if EV_VERIFY >= 2	2296	#if EV_VERIFY >= 2
2219	ev_loop_verify (EV_A);	2297	ev_verify (EV_A);
2220	#endif	2298	#endif
2221		2299
2222	#ifndef _WIN32	2300	#ifndef _WIN32
2223	if (expect_false (curpid)) /* penalise the forking check even more */	2301	if (expect_false (curpid)) /* penalise the forking check even more */
2224	if (expect_false (getpid () != curpid))	2302	if (expect_false (getpid () != curpid))
…		…
2236	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2314	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2237	EV_INVOKE_PENDING;	2315	EV_INVOKE_PENDING;
2238	}	2316	}
2239	#endif	2317	#endif
2240		2318
		2319	#if EV_PREPARE_ENABLE
2241	/* queue prepare watchers (and execute them) */	2320	/* queue prepare watchers (and execute them) */
2242	if (expect_false (preparecnt))	2321	if (expect_false (preparecnt))
2243	{	2322	{
2244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2323	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2245	EV_INVOKE_PENDING;	2324	EV_INVOKE_PENDING;
2246	}	2325	}
		2326	#endif
2247		2327
2248	if (expect_false (loop_done))	2328	if (expect_false (loop_done))
2249	break;	2329	break;
2250		2330
2251	/* we might have forked, so reify kernel state if necessary */	2331	/* we might have forked, so reify kernel state if necessary */
…		…
2302	waittime -= sleeptime;	2382	waittime -= sleeptime;
2303	}	2383	}
2304	}	2384	}
2305	}	2385	}
2306		2386
2307	#if EV_MINIMAL < 2	2387	#if EV_FEATURE_API
2308	++loop_count;	2388	++loop_count;
2309	#endif	2389	#endif
2310	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2390	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2311	backend_poll (EV_A_ waittime);	2391	backend_poll (EV_A_ waittime);
2312	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2392	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2324	#if EV_IDLE_ENABLE	2404	#if EV_IDLE_ENABLE
2325	/* queue idle watchers unless other events are pending */	2405	/* queue idle watchers unless other events are pending */
2326	idle_reify (EV_A);	2406	idle_reify (EV_A);
2327	#endif	2407	#endif
2328		2408
		2409	#if EV_CHECK_ENABLE
2329	/* queue check watchers, to be executed first */	2410	/* queue check watchers, to be executed first */
2330	if (expect_false (checkcnt))	2411	if (expect_false (checkcnt))
2331	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2412	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2413	#endif
2332		2414
2333	EV_INVOKE_PENDING;	2415	EV_INVOKE_PENDING;
2334	}	2416	}
2335	while (expect_true (	2417	while (expect_true (
2336	activecnt	2418	activecnt
…		…
2339	));	2421	));
2340		2422
2341	if (loop_done == EVUNLOOP_ONE)	2423	if (loop_done == EVUNLOOP_ONE)
2342	loop_done = EVUNLOOP_CANCEL;	2424	loop_done = EVUNLOOP_CANCEL;
2343		2425
2344	#if EV_MINIMAL < 2	2426	#if EV_FEATURE_API
2345	--loop_depth;	2427	--loop_depth;
2346	#endif	2428	#endif
2347	}	2429	}
2348		2430
2349	void	2431	void
…		…
2475		2557
2476	if (expect_false (ev_is_active (w)))	2558	if (expect_false (ev_is_active (w)))
2477	return;	2559	return;
2478		2560
2479	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2561	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2480	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))));
2481		2563
2482	EV_FREQUENT_CHECK;	2564	EV_FREQUENT_CHECK;
2483		2565
2484	ev_start (EV_A_ (W)w, 1);	2566	ev_start (EV_A_ (W)w, 1);
2485	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2567	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2555	timers [active] = timers [timercnt + HEAP0];	2637	timers [active] = timers [timercnt + HEAP0];
2556	adjustheap (timers, timercnt, active);	2638	adjustheap (timers, timercnt, active);
2557	}	2639	}
2558	}	2640	}
2559		2641
2560	EV_FREQUENT_CHECK;
2561
2562	ev_at (w) -= mn_now;	2642	ev_at (w) -= mn_now;
2563		2643
2564	ev_stop (EV_A_ (W)w);	2644	ev_stop (EV_A_ (W)w);
		2645
		2646	EV_FREQUENT_CHECK;
2565	}	2647	}
2566		2648
2567	void noinline	2649	void noinline
2568	ev_timer_again (EV_P_ ev_timer *w)	2650	ev_timer_again (EV_P_ ev_timer *w)
2569	{	2651	{
…		…
2648	periodics [active] = periodics [periodiccnt + HEAP0];	2730	periodics [active] = periodics [periodiccnt + HEAP0];
2649	adjustheap (periodics, periodiccnt, active);	2731	adjustheap (periodics, periodiccnt, active);
2650	}	2732	}
2651	}	2733	}
2652		2734
2653	EV_FREQUENT_CHECK;
2654
2655	ev_stop (EV_A_ (W)w);	2735	ev_stop (EV_A_ (W)w);
		2736
		2737	EV_FREQUENT_CHECK;
2656	}	2738	}
2657		2739
2658	void noinline	2740	void noinline
2659	ev_periodic_again (EV_P_ ev_periodic *w)	2741	ev_periodic_again (EV_P_ ev_periodic *w)
2660	{	2742	{
…		…
2665	#endif	2747	#endif
2666		2748
2667	#ifndef SA_RESTART	2749	#ifndef SA_RESTART
2668	# define SA_RESTART 0	2750	# define SA_RESTART 0
2669	#endif	2751	#endif
		2752
		2753	#if EV_SIGNAL_ENABLE
2670		2754
2671	void noinline	2755	void noinline
2672	ev_signal_start (EV_P_ ev_signal *w)	2756	ev_signal_start (EV_P_ ev_signal *w)
2673	{	2757	{
2674	if (expect_false (ev_is_active (w)))	2758	if (expect_false (ev_is_active (w)))
…		…
2721	if (!((WL)w)->next)	2805	if (!((WL)w)->next)
2722	# if EV_USE_SIGNALFD	2806	# if EV_USE_SIGNALFD
2723	if (sigfd < 0) /TODO/	2807	if (sigfd < 0) /TODO/
2724	# endif	2808	# endif
2725	{	2809	{
2726	# if _WIN32	2810	# ifdef _WIN32
		2811	evpipe_init (EV_A);
		2812
2727	signal (w->signum, ev_sighandler);	2813	signal (w->signum, ev_sighandler);
2728	# else	2814	# else
2729	struct sigaction sa;	2815	struct sigaction sa;
2730		2816
2731	evpipe_init (EV_A);	2817	evpipe_init (EV_A);
…		…
2762	signals [w->signum - 1].loop = 0; /* unattach from signal */	2848	signals [w->signum - 1].loop = 0; /* unattach from signal */
2763	#endif	2849	#endif
2764	#if EV_USE_SIGNALFD	2850	#if EV_USE_SIGNALFD
2765	if (sigfd >= 0)	2851	if (sigfd >= 0)
2766	{	2852	{
2767	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2853	sigset_t ss;
		2854
		2855	sigemptyset (&ss);
		2856	sigaddset (&ss, w->signum);
2768	sigdelset (&sigfd_set, w->signum);	2857	sigdelset (&sigfd_set, w->signum);
		2858
2769	signalfd (sigfd, &sigfd_set, 0);	2859	signalfd (sigfd, &sigfd_set, 0);
2770	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2860	sigprocmask (SIG_UNBLOCK, &ss, 0);
2771	/TODO: maybe unblock signal? /
2772	}	2861	}
2773	else	2862	else
2774	#endif	2863	#endif
2775	signal (w->signum, SIG_DFL);	2864	signal (w->signum, SIG_DFL);
2776	}	2865	}
2777		2866
2778	EV_FREQUENT_CHECK;	2867	EV_FREQUENT_CHECK;
2779	}	2868	}
2780		2869
		2870	#endif
		2871
		2872	#if EV_CHILD_ENABLE
		2873
2781	void	2874	void
2782	ev_child_start (EV_P_ ev_child *w)	2875	ev_child_start (EV_P_ ev_child *w)
2783	{	2876	{
2784	#if EV_MULTIPLICITY	2877	#if EV_MULTIPLICITY
2785	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));
…		…
2788	return;	2881	return;
2789		2882
2790	EV_FREQUENT_CHECK;	2883	EV_FREQUENT_CHECK;
2791		2884
2792	ev_start (EV_A_ (W)w, 1);	2885	ev_start (EV_A_ (W)w, 1);
2793	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2886	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2794		2887
2795	EV_FREQUENT_CHECK;	2888	EV_FREQUENT_CHECK;
2796	}	2889	}
2797		2890
2798	void	2891	void
…		…
2802	if (expect_false (!ev_is_active (w)))	2895	if (expect_false (!ev_is_active (w)))
2803	return;	2896	return;
2804		2897
2805	EV_FREQUENT_CHECK;	2898	EV_FREQUENT_CHECK;
2806		2899
2807	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2900	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2808	ev_stop (EV_A_ (W)w);	2901	ev_stop (EV_A_ (W)w);
2809		2902
2810	EV_FREQUENT_CHECK;	2903	EV_FREQUENT_CHECK;
2811	}	2904	}
		2905
		2906	#endif
2812		2907
2813	#if EV_STAT_ENABLE	2908	#if EV_STAT_ENABLE
2814		2909
2815	# ifdef _WIN32	2910	# ifdef _WIN32
2816	# undef lstat	2911	# undef lstat
…		…
2822	#define MIN_STAT_INTERVAL 0.1074891	2917	#define MIN_STAT_INTERVAL 0.1074891
2823		2918
2824	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);
2825		2920
2826	#if EV_USE_INOTIFY	2921	#if EV_USE_INOTIFY
2827	# 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)
2828		2925
2829	static void noinline	2926	static void noinline
2830	infy_add (EV_P_ ev_stat *w)	2927	infy_add (EV_P_ ev_stat *w)
2831	{	2928	{
2832	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);
2833		2930
2834	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 */
2835	{	2951	}
		2952	else
		2953	{
		2954	/* can't use inotify, continue to stat */
2836	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2955	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2837	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2838		2956
2839	/* monitor some parent directory for speedup hints */	2957	/* if path is not there, monitor some parent directory for speedup hints */
2840	/* 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, */
2841	/* but an efficiency issue only */	2959	/* but an efficiency issue only */
2842	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2960	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2843	{	2961	{
2844	char path [4096];	2962	char path [4096];
…		…
2860	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2978	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2861	}	2979	}
2862	}	2980	}
2863		2981
2864	if (w->wd >= 0)	2982	if (w->wd >= 0)
2865	{
2866	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);
2867		2984
2868	/* now local changes will be tracked by inotify, but remote changes won't */	2985	/* now re-arm timer, if required */
2869	/* unless the filesystem it known to be local, we therefore still poll */	2986	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2870	/* also do poll on <2.6.25, but with normal frequency */
2871	struct statfs sfs;
2872
2873	if (fs_2625 && !statfs (w->path, &sfs))
2874	if (sfs.f_type == 0x1373 /* devfs */
2875	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2876	\|\| sfs.f_type == 0x3153464a /* jfs */
2877	\|\| sfs.f_type == 0x52654973 /* reiser3 */
2878	\|\| sfs.f_type == 0x01021994 /* tempfs */
2879	\|\| sfs.f_type == 0x58465342 /* xfs */)
2880	return;
2881
2882	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2883	ev_timer_again (EV_A_ &w->timer);	2987	ev_timer_again (EV_A_ &w->timer);
2884	}	2988	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2885	}	2989	}
2886		2990
2887	static void noinline	2991	static void noinline
2888	infy_del (EV_P_ ev_stat *w)	2992	infy_del (EV_P_ ev_stat *w)
2889	{	2993	{
…		…
2892		2996
2893	if (wd < 0)	2997	if (wd < 0)
2894	return;	2998	return;
2895		2999
2896	w->wd = -2;	3000	w->wd = -2;
2897	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3001	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2898	wlist_del (&fs_hash [slot].head, (WL)w);	3002	wlist_del (&fs_hash [slot].head, (WL)w);
2899		3003
2900	/* remove this watcher, if others are watching it, they will rearm */	3004	/* remove this watcher, if others are watching it, they will rearm */
2901	inotify_rm_watch (fs_fd, wd);	3005	inotify_rm_watch (fs_fd, wd);
2902	}	3006	}
…		…
2904	static void noinline	3008	static void noinline
2905	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)
2906	{	3010	{
2907	if (slot < 0)	3011	if (slot < 0)
2908	/* overflow, need to check for all hash slots */	3012	/* overflow, need to check for all hash slots */
2909	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3013	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2910	infy_wd (EV_A_ slot, wd, ev);	3014	infy_wd (EV_A_ slot, wd, ev);
2911	else	3015	else
2912	{	3016	{
2913	WL w_;	3017	WL w_;
2914		3018
2915	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3019	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2916	{	3020	{
2917	ev_stat w = (ev_stat )w_;	3021	ev_stat w = (ev_stat )w_;
2918	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 */
2919		3023
2920	if (w->wd == wd \|\| wd == -1)	3024	if (w->wd == wd \|\| wd == -1)
2921	{	3025	{
2922	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	3026	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2923	{	3027	{
2924	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);
2925	w->wd = -1;	3029	w->wd = -1;
2926	infy_add (EV_A_ w); /* re-add, no matter what */	3030	infy_add (EV_A_ w); /* re-add, no matter what */
2927	}	3031	}
2928		3032
2929	stat_timer_cb (EV_A_ &w->timer, 0);	3033	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2934		3038
2935	static void	3039	static void
2936	infy_cb (EV_P_ ev_io *w, int revents)	3040	infy_cb (EV_P_ ev_io *w, int revents)
2937	{	3041	{
2938	char buf [EV_INOTIFY_BUFSIZE];	3042	char buf [EV_INOTIFY_BUFSIZE];
2939	struct inotify_event ev = (struct inotify_event )buf;
2940	int ofs;	3043	int ofs;
2941	int len = read (fs_fd, buf, sizeof (buf));	3044	int len = read (fs_fd, buf, sizeof (buf));
2942		3045
2943	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);
2944	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;
2945	}	3084	}
2946		3085
2947	inline_size void	3086	inline_size void
2948	check_2625 (EV_P)	3087	ev_check_2625 (EV_P)
2949	{	3088	{
2950	/* kernels < 2.6.25 are borked	3089	/* kernels < 2.6.25 are borked
2951	* 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
2952	*/	3091	*/
2953	struct utsname buf;	3092	if (ev_linux_version () < 0x020619)
2954	int major, minor, micro;
2955
2956	if (uname (&buf))
2957	return;	3093	return;
2958		3094
2959	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2960	return;
2961
2962	if (major < 2
2963	\|\| (major == 2 && minor < 6)
2964	\|\| (major == 2 && minor == 6 && micro < 25))
2965	return;
2966
2967	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 ();
2968	}	3107	}
2969		3108
2970	inline_size void	3109	inline_size void
2971	infy_init (EV_P)	3110	infy_init (EV_P)
2972	{	3111	{
2973	if (fs_fd != -2)	3112	if (fs_fd != -2)
2974	return;	3113	return;
2975		3114
2976	fs_fd = -1;	3115	fs_fd = -1;
2977		3116
2978	check_2625 (EV_A);	3117	ev_check_2625 (EV_A);
2979		3118
2980	fs_fd = inotify_init ();	3119	fs_fd = infy_newfd ();
2981		3120
2982	if (fs_fd >= 0)	3121	if (fs_fd >= 0)
2983	{	3122	{
		3123	fd_intern (fs_fd);
2984	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3124	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2985	ev_set_priority (&fs_w, EV_MAXPRI);	3125	ev_set_priority (&fs_w, EV_MAXPRI);
2986	ev_io_start (EV_A_ &fs_w);	3126	ev_io_start (EV_A_ &fs_w);
		3127	ev_unref (EV_A);
2987	}	3128	}
2988	}	3129	}
2989		3130
2990	inline_size void	3131	inline_size void
2991	infy_fork (EV_P)	3132	infy_fork (EV_P)
…		…
2993	int slot;	3134	int slot;
2994		3135
2995	if (fs_fd < 0)	3136	if (fs_fd < 0)
2996	return;	3137	return;
2997		3138
		3139	ev_ref (EV_A);
		3140	ev_io_stop (EV_A_ &fs_w);
2998	close (fs_fd);	3141	close (fs_fd);
2999	fs_fd = inotify_init ();	3142	fs_fd = infy_newfd ();
3000		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
3001	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3152	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3002	{	3153	{
3003	WL w_ = fs_hash [slot].head;	3154	WL w_ = fs_hash [slot].head;
3004	fs_hash [slot].head = 0;	3155	fs_hash [slot].head = 0;
3005		3156
3006	while (w_)	3157	while (w_)
…		…
3011	w->wd = -1;	3162	w->wd = -1;
3012		3163
3013	if (fs_fd >= 0)	3164	if (fs_fd >= 0)
3014	infy_add (EV_A_ w); /* re-add, no matter what */	3165	infy_add (EV_A_ w); /* re-add, no matter what */
3015	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);
3016	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	}
3017	}	3173	}
3018	}	3174	}
3019	}	3175	}
3020		3176
3021	#endif	3177	#endif
…		…
3038	static void noinline	3194	static void noinline
3039	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3195	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3040	{	3196	{
3041	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3197	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
3042		3198
3043	/* we copy this here each the time so that */	3199	ev_statdata prev = w->attr;
3044	/* prev has the old value when the callback gets invoked */
3045	w->prev = w->attr;
3046	ev_stat_stat (EV_A_ w);	3200	ev_stat_stat (EV_A_ w);
3047		3201
3048	/* 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 */
3049	if (	3203	if (
3050	w->prev.st_dev != w->attr.st_dev	3204	prev.st_dev != w->attr.st_dev
3051	\|\| w->prev.st_ino != w->attr.st_ino	3205	\|\| prev.st_ino != w->attr.st_ino
3052	\|\| w->prev.st_mode != w->attr.st_mode	3206	\|\| prev.st_mode != w->attr.st_mode
3053	\|\| w->prev.st_nlink != w->attr.st_nlink	3207	\|\| prev.st_nlink != w->attr.st_nlink
3054	\|\| w->prev.st_uid != w->attr.st_uid	3208	\|\| prev.st_uid != w->attr.st_uid
3055	\|\| w->prev.st_gid != w->attr.st_gid	3209	\|\| prev.st_gid != w->attr.st_gid
3056	\|\| w->prev.st_rdev != w->attr.st_rdev	3210	\|\| prev.st_rdev != w->attr.st_rdev
3057	\|\| w->prev.st_size != w->attr.st_size	3211	\|\| prev.st_size != w->attr.st_size
3058	\|\| w->prev.st_atime != w->attr.st_atime	3212	\|\| prev.st_atime != w->attr.st_atime
3059	\|\| w->prev.st_mtime != w->attr.st_mtime	3213	\|\| prev.st_mtime != w->attr.st_mtime
3060	\|\| w->prev.st_ctime != w->attr.st_ctime	3214	\|\| prev.st_ctime != w->attr.st_ctime
3061	) {	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
3062	#if EV_USE_INOTIFY	3221	#if EV_USE_INOTIFY
3063	if (fs_fd >= 0)	3222	if (fs_fd >= 0)
3064	{	3223	{
3065	infy_del (EV_A_ w);	3224	infy_del (EV_A_ w);
3066	infy_add (EV_A_ w);	3225	infy_add (EV_A_ w);
…		…
3091		3250
3092	if (fs_fd >= 0)	3251	if (fs_fd >= 0)
3093	infy_add (EV_A_ w);	3252	infy_add (EV_A_ w);
3094	else	3253	else
3095	#endif	3254	#endif
		3255	{
3096	ev_timer_again (EV_A_ &w->timer);	3256	ev_timer_again (EV_A_ &w->timer);
		3257	ev_unref (EV_A);
		3258	}
3097		3259
3098	ev_start (EV_A_ (W)w, 1);	3260	ev_start (EV_A_ (W)w, 1);
3099		3261
3100	EV_FREQUENT_CHECK;	3262	EV_FREQUENT_CHECK;
3101	}	3263	}
…		…
3110	EV_FREQUENT_CHECK;	3272	EV_FREQUENT_CHECK;
3111		3273
3112	#if EV_USE_INOTIFY	3274	#if EV_USE_INOTIFY
3113	infy_del (EV_A_ w);	3275	infy_del (EV_A_ w);
3114	#endif	3276	#endif
		3277
		3278	if (ev_is_active (&w->timer))
		3279	{
		3280	ev_ref (EV_A);
3115	ev_timer_stop (EV_A_ &w->timer);	3281	ev_timer_stop (EV_A_ &w->timer);
		3282	}
3116		3283
3117	ev_stop (EV_A_ (W)w);	3284	ev_stop (EV_A_ (W)w);
3118		3285
3119	EV_FREQUENT_CHECK;	3286	EV_FREQUENT_CHECK;
3120	}	3287	}
…		…
3165		3332
3166	EV_FREQUENT_CHECK;	3333	EV_FREQUENT_CHECK;
3167	}	3334	}
3168	#endif	3335	#endif
3169		3336
		3337	#if EV_PREPARE_ENABLE
3170	void	3338	void
3171	ev_prepare_start (EV_P_ ev_prepare *w)	3339	ev_prepare_start (EV_P_ ev_prepare *w)
3172	{	3340	{
3173	if (expect_false (ev_is_active (w)))	3341	if (expect_false (ev_is_active (w)))
3174	return;	3342	return;
…		…
3200		3368
3201	ev_stop (EV_A_ (W)w);	3369	ev_stop (EV_A_ (W)w);
3202		3370
3203	EV_FREQUENT_CHECK;	3371	EV_FREQUENT_CHECK;
3204	}	3372	}
		3373	#endif
3205		3374
		3375	#if EV_CHECK_ENABLE
3206	void	3376	void
3207	ev_check_start (EV_P_ ev_check *w)	3377	ev_check_start (EV_P_ ev_check *w)
3208	{	3378	{
3209	if (expect_false (ev_is_active (w)))	3379	if (expect_false (ev_is_active (w)))
3210	return;	3380	return;
…		…
3236		3406
3237	ev_stop (EV_A_ (W)w);	3407	ev_stop (EV_A_ (W)w);
3238		3408
3239	EV_FREQUENT_CHECK;	3409	EV_FREQUENT_CHECK;
3240	}	3410	}
		3411	#endif
3241		3412
3242	#if EV_EMBED_ENABLE	3413	#if EV_EMBED_ENABLE
3243	void noinline	3414	void noinline
3244	ev_embed_sweep (EV_P_ ev_embed *w)	3415	ev_embed_sweep (EV_P_ ev_embed *w)
3245	{	3416	{
…		…
3340		3511
3341	ev_io_stop (EV_A_ &w->io);	3512	ev_io_stop (EV_A_ &w->io);
3342	ev_prepare_stop (EV_A_ &w->prepare);	3513	ev_prepare_stop (EV_A_ &w->prepare);
3343	ev_fork_stop (EV_A_ &w->fork);	3514	ev_fork_stop (EV_A_ &w->fork);
3344		3515
		3516	ev_stop (EV_A_ (W)w);
		3517
3345	EV_FREQUENT_CHECK;	3518	EV_FREQUENT_CHECK;
3346	}	3519	}
3347	#endif	3520	#endif
3348		3521
3349	#if EV_FORK_ENABLE	3522	#if EV_FORK_ENABLE
…		…
3475	{	3648	{
3476	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));
3477		3650
3478	if (expect_false (!once))	3651	if (expect_false (!once))
3479	{	3652	{
3480	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	3653	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMER, arg);
3481	return;	3654	return;
3482	}	3655	}
3483		3656
3484	once->cb = cb;	3657	once->cb = cb;
3485	once->arg = arg;	3658	once->arg = arg;
…		…
3572	if (types & EV_ASYNC)	3745	if (types & EV_ASYNC)
3573	for (i = asynccnt; i--; )	3746	for (i = asynccnt; i--; )
3574	cb (EV_A_ EV_ASYNC, asyncs [i]);	3747	cb (EV_A_ EV_ASYNC, asyncs [i]);
3575	#endif	3748	#endif
3576		3749
		3750	#if EV_PREPARE_ENABLE
3577	if (types & EV_PREPARE)	3751	if (types & EV_PREPARE)
3578	for (i = preparecnt; i--; )	3752	for (i = preparecnt; i--; )
3579	#if EV_EMBED_ENABLE	3753	# if EV_EMBED_ENABLE
3580	if (ev_cb (prepares [i]) != embed_prepare_cb)	3754	if (ev_cb (prepares [i]) != embed_prepare_cb)
3581	#endif	3755	# endif
3582	cb (EV_A_ EV_PREPARE, prepares [i]);	3756	cb (EV_A_ EV_PREPARE, prepares [i]);
		3757	#endif
3583		3758
		3759	#if EV_CHECK_ENABLE
3584	if (types & EV_CHECK)	3760	if (types & EV_CHECK)
3585	for (i = checkcnt; i--; )	3761	for (i = checkcnt; i--; )
3586	cb (EV_A_ EV_CHECK, checks [i]);	3762	cb (EV_A_ EV_CHECK, checks [i]);
		3763	#endif
3587		3764
		3765	#if EV_SIGNAL_ENABLE
3588	if (types & EV_SIGNAL)	3766	if (types & EV_SIGNAL)
3589	for (i = 0; i < EV_NSIG - 1; ++i)	3767	for (i = 0; i < EV_NSIG - 1; ++i)
3590	for (wl = signals [i].head; wl; )	3768	for (wl = signals [i].head; wl; )
3591	{	3769	{
3592	wn = wl->next;	3770	wn = wl->next;
3593	cb (EV_A_ EV_SIGNAL, wl);	3771	cb (EV_A_ EV_SIGNAL, wl);
3594	wl = wn;	3772	wl = wn;
3595	}	3773	}
		3774	#endif
3596		3775
		3776	#if EV_CHILD_ENABLE
3597	if (types & EV_CHILD)	3777	if (types & EV_CHILD)
3598	for (i = EV_PID_HASHSIZE; i--; )	3778	for (i = (EV_PID_HASHSIZE); i--; )
3599	for (wl = childs [i]; wl; )	3779	for (wl = childs [i]; wl; )
3600	{	3780	{
3601	wn = wl->next;	3781	wn = wl->next;
3602	cb (EV_A_ EV_CHILD, wl);	3782	cb (EV_A_ EV_CHILD, wl);
3603	wl = wn;	3783	wl = wn;
3604	}	3784	}
		3785	#endif
3605	/* EV_STAT 0x00001000 /* stat data changed */	3786	/* EV_STAT 0x00001000 /* stat data changed */
3606	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3787	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3607	}	3788	}
3608	#endif	3789	#endif
3609		3790

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Comparing libev/ev.c (file contents): Revision 1.311 by root, Wed Jul 29 09:36:05 2009 UTC vs. Revision 1.343 by root, Fri Apr 2 21:03:46 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.311 by root, Wed Jul 29 09:36:05 2009 UTC vs.
Revision 1.343 by root, Fri Apr 2 21:03:46 2010 UTC