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

Comparing libev/ev.c (file contents):
Revision 1.309 by root, Sun Jul 26 04:24:17 2009 UTC vs.
Revision 1.340 by root, Tue Mar 16 20:39:29 2010 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
79	# endif	79	# endif
80	# endif	80	# endif
81		81
82	# ifndef EV_USE_NANOSLEEP	82	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP	83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	84	# define EV_USE_NANOSLEEP EV_FEATURE_OS
85	# else	85	# else
86	# define EV_USE_NANOSLEEP 0	86	# define EV_USE_NANOSLEEP 0
87	# endif	87	# endif
88	# endif	88	# endif
89		89
90	# ifndef EV_USE_SELECT	90	# ifndef EV_USE_SELECT
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
92	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT EV_FEATURE_BACKENDS
93	# else	93	# else
94	# define EV_USE_SELECT 0	94	# define EV_USE_SELECT 0
95	# endif	95	# endif
96	# endif	96	# endif
97		97
98	# ifndef EV_USE_POLL	98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H	99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1	100	# define EV_USE_POLL EV_FEATURE_BACKENDS
101	# else	101	# else
102	# define EV_USE_POLL 0	102	# define EV_USE_POLL 0
103	# endif	103	# endif
104	# endif	104	# endif
105		105
106	# ifndef EV_USE_EPOLL	106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	108	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
109	# else	109	# else
110	# define EV_USE_EPOLL 0	110	# define EV_USE_EPOLL 0
111	# endif	111	# endif
112	# endif	112	# endif
113		113
114	# ifndef EV_USE_KQUEUE	114	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116	# define EV_USE_KQUEUE 1	116	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
117	# else	117	# else
118	# define EV_USE_KQUEUE 0	118	# define EV_USE_KQUEUE 0
119	# endif	119	# endif
120	# endif	120	# endif
121		121
122	# ifndef EV_USE_PORT	122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	124	# define EV_USE_PORT EV_FEATURE_BACKENDS
125	# else	125	# else
126	# define EV_USE_PORT 0	126	# define EV_USE_PORT 0
127	# endif	127	# endif
128	# endif	128	# endif
129		129
130	# ifndef EV_USE_INOTIFY	130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	132	# define EV_USE_INOTIFY EV_FEATURE_OS
133	# else	133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY 0
135	# endif	135	# endif
136	# endif	136	# endif
137		137
138	# ifndef EV_USE_SIGNALFD	138	# ifndef EV_USE_SIGNALFD
139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H	139	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140	# define EV_USE_SIGNALFD 1	140	# define EV_USE_SIGNALFD EV_FEATURE_OS
141	# else	141	# else
142	# define EV_USE_SIGNALFD 0	142	# define EV_USE_SIGNALFD 0
143	# endif	143	# endif
144	# endif	144	# endif
145		145
146	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_EVENTFD
147	# if HAVE_EVENTFD	147	# if HAVE_EVENTFD
148	# define EV_USE_EVENTFD 1	148	# define EV_USE_EVENTFD EV_FEATURE_OS
149	# else	149	# else
150	# define EV_USE_EVENTFD 0	150	# define EV_USE_EVENTFD 0
151	# endif	151	# endif
152	# endif	152	# endif
153		153
154	#endif	154	#endif
155		155
156	#include <math.h>	156	#include <math.h>
157	#include <stdlib.h>	157	#include <stdlib.h>
		158	#include <string.h>
158	#include <fcntl.h>	159	#include <fcntl.h>
159	#include <stddef.h>	160	#include <stddef.h>
160		161
161	#include <stdio.h>	162	#include <stdio.h>
162		163
163	#include <assert.h>	164	#include <assert.h>
164	#include <errno.h>	165	#include <errno.h>
165	#include <sys/types.h>	166	#include <sys/types.h>
166	#include <time.h>	167	#include <time.h>
		168	#include <limits.h>
167		169
168	#include <signal.h>	170	#include <signal.h>
169		171
170	#ifdef EV_H	172	#ifdef EV_H
171	# include EV_H	173	# include EV_H
…		…
182	# define WIN32_LEAN_AND_MEAN	184	# define WIN32_LEAN_AND_MEAN
183	# include <windows.h>	185	# include <windows.h>
184	# ifndef EV_SELECT_IS_WINSOCKET	186	# ifndef EV_SELECT_IS_WINSOCKET
185	# define EV_SELECT_IS_WINSOCKET 1	187	# define EV_SELECT_IS_WINSOCKET 1
186	# endif	188	# endif
		189	# undef EV_AVOID_STDIO
187	#endif	190	#endif
188		191
189	/* this block tries to deduce configuration from header-defined symbols and defaults */	192	/* this block tries to deduce configuration from header-defined symbols and defaults */
190		193
191	/* try to deduce the maximum number of signals on this platform */	194	/* try to deduce the maximum number of signals on this platform */
…		…
204	#elif defined (MAXSIG)	207	#elif defined (MAXSIG)
205	# define EV_NSIG (MAXSIG+1)	208	# define EV_NSIG (MAXSIG+1)
206	#elif defined (MAX_SIG)	209	#elif defined (MAX_SIG)
207	# define EV_NSIG (MAX_SIG+1)	210	# define EV_NSIG (MAX_SIG+1)
208	#elif defined (SIGARRAYSIZE)	211	#elif defined (SIGARRAYSIZE)
209	# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */	212	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
210	#elif defined (_sys_nsig)	213	#elif defined (_sys_nsig)
211	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	214	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
212	#else	215	#else
213	# error "unable to find value for NSIG, please report"	216	# error "unable to find value for NSIG, please report"
214	/* to make it compile regardless, just remove the above line */	217	/* to make it compile regardless, just remove the above line, */
		218	/* but consider reporting it, too! :) */
215	# define EV_NSIG 65	219	# define EV_NSIG 65
216	#endif	220	#endif
217		221
218	#ifndef EV_USE_CLOCK_SYSCALL	222	#ifndef EV_USE_CLOCK_SYSCALL
219	# if __linux && __GLIBC__ >= 2	223	# if __linux && __GLIBC__ >= 2
220	# define EV_USE_CLOCK_SYSCALL 1	224	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
221	# else	225	# else
222	# define EV_USE_CLOCK_SYSCALL 0	226	# define EV_USE_CLOCK_SYSCALL 0
223	# endif	227	# endif
224	#endif	228	#endif
225		229
226	#ifndef EV_USE_MONOTONIC	230	#ifndef EV_USE_MONOTONIC
227	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	231	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
228	# define EV_USE_MONOTONIC 1	232	# define EV_USE_MONOTONIC EV_FEATURE_OS
229	# else	233	# else
230	# define EV_USE_MONOTONIC 0	234	# define EV_USE_MONOTONIC 0
231	# endif	235	# endif
232	#endif	236	#endif
233		237
…		…
235	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	239	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
236	#endif	240	#endif
237		241
238	#ifndef EV_USE_NANOSLEEP	242	#ifndef EV_USE_NANOSLEEP
239	# if _POSIX_C_SOURCE >= 199309L	243	# if _POSIX_C_SOURCE >= 199309L
240	# define EV_USE_NANOSLEEP 1	244	# define EV_USE_NANOSLEEP EV_FEATURE_OS
241	# else	245	# else
242	# define EV_USE_NANOSLEEP 0	246	# define EV_USE_NANOSLEEP 0
243	# endif	247	# endif
244	#endif	248	#endif
245		249
246	#ifndef EV_USE_SELECT	250	#ifndef EV_USE_SELECT
247	# define EV_USE_SELECT 1	251	# define EV_USE_SELECT EV_FEATURE_BACKENDS
248	#endif	252	#endif
249		253
250	#ifndef EV_USE_POLL	254	#ifndef EV_USE_POLL
251	# ifdef _WIN32	255	# ifdef _WIN32
252	# define EV_USE_POLL 0	256	# define EV_USE_POLL 0
253	# else	257	# else
254	# define EV_USE_POLL 1	258	# define EV_USE_POLL EV_FEATURE_BACKENDS
255	# endif	259	# endif
256	#endif	260	#endif
257		261
258	#ifndef EV_USE_EPOLL	262	#ifndef EV_USE_EPOLL
259	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	263	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
260	# define EV_USE_EPOLL 1	264	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
261	# else	265	# else
262	# define EV_USE_EPOLL 0	266	# define EV_USE_EPOLL 0
263	# endif	267	# endif
264	#endif	268	#endif
265		269
…		…
271	# define EV_USE_PORT 0	275	# define EV_USE_PORT 0
272	#endif	276	#endif
273		277
274	#ifndef EV_USE_INOTIFY	278	#ifndef EV_USE_INOTIFY
275	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	279	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
276	# define EV_USE_INOTIFY 1	280	# define EV_USE_INOTIFY EV_FEATURE_OS
277	# else	281	# else
278	# define EV_USE_INOTIFY 0	282	# define EV_USE_INOTIFY 0
279	# endif	283	# endif
280	#endif	284	#endif
281		285
282	#ifndef EV_PID_HASHSIZE	286	#ifndef EV_PID_HASHSIZE
283	# if EV_MINIMAL	287	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
284	# define EV_PID_HASHSIZE 1
285	# else
286	# define EV_PID_HASHSIZE 16
287	# endif
288	#endif	288	#endif
289		289
290	#ifndef EV_INOTIFY_HASHSIZE	290	#ifndef EV_INOTIFY_HASHSIZE
291	# if EV_MINIMAL	291	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
292	# define EV_INOTIFY_HASHSIZE 1
293	# else
294	# define EV_INOTIFY_HASHSIZE 16
295	# endif
296	#endif	292	#endif
297		293
298	#ifndef EV_USE_EVENTFD	294	#ifndef EV_USE_EVENTFD
299	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	295	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
300	# define EV_USE_EVENTFD 1	296	# define EV_USE_EVENTFD EV_FEATURE_OS
301	# else	297	# else
302	# define EV_USE_EVENTFD 0	298	# define EV_USE_EVENTFD 0
303	# endif	299	# endif
304	#endif	300	#endif
305		301
306	#ifndef EV_USE_SIGNALFD	302	#ifndef EV_USE_SIGNALFD
307	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9))	303	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308	# define EV_USE_SIGNALFD 1	304	# define EV_USE_SIGNALFD EV_FEATURE_OS
309	# else	305	# else
310	# define EV_USE_SIGNALFD 0	306	# define EV_USE_SIGNALFD 0
311	# endif	307	# endif
312	#endif	308	#endif
313		309
…		…
316	# define EV_USE_4HEAP 1	312	# define EV_USE_4HEAP 1
317	# define EV_HEAP_CACHE_AT 1	313	# define EV_HEAP_CACHE_AT 1
318	#endif	314	#endif
319		315
320	#ifndef EV_VERIFY	316	#ifndef EV_VERIFY
321	# define EV_VERIFY !EV_MINIMAL	317	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
322	#endif	318	#endif
323		319
324	#ifndef EV_USE_4HEAP	320	#ifndef EV_USE_4HEAP
325	# define EV_USE_4HEAP !EV_MINIMAL	321	# define EV_USE_4HEAP EV_FEATURE_DATA
326	#endif	322	#endif
327		323
328	#ifndef EV_HEAP_CACHE_AT	324	#ifndef EV_HEAP_CACHE_AT
329	# define EV_HEAP_CACHE_AT !EV_MINIMAL	325	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
330	#endif	326	#endif
331		327
332	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	328	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
333	/* which makes programs even slower. might work on other unices, too. */	329	/* which makes programs even slower. might work on other unices, too. */
334	#if EV_USE_CLOCK_SYSCALL	330	#if EV_USE_CLOCK_SYSCALL
…		…
343	# endif	339	# endif
344	#endif	340	#endif
345		341
346	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	342	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
347		343
		344	#ifdef _AIX
		345	/* AIX has a completely broken poll.h header */
		346	# undef EV_USE_POLL
		347	# define EV_USE_POLL 0
		348	#endif
		349
348	#ifndef CLOCK_MONOTONIC	350	#ifndef CLOCK_MONOTONIC
349	# undef EV_USE_MONOTONIC	351	# undef EV_USE_MONOTONIC
350	# define EV_USE_MONOTONIC 0	352	# define EV_USE_MONOTONIC 0
351	#endif	353	#endif
352		354
…		…
386	# include <stdint.h>	388	# include <stdint.h>
387	# ifndef EFD_NONBLOCK	389	# ifndef EFD_NONBLOCK
388	# define EFD_NONBLOCK O_NONBLOCK	390	# define EFD_NONBLOCK O_NONBLOCK
389	# endif	391	# endif
390	# ifndef EFD_CLOEXEC	392	# ifndef EFD_CLOEXEC
		393	# ifdef O_CLOEXEC
391	# define EFD_CLOEXEC O_CLOEXEC	394	# define EFD_CLOEXEC O_CLOEXEC
		395	# else
		396	# define EFD_CLOEXEC 02000000
		397	# endif
392	# endif	398	# endif
393	# ifdef __cplusplus	399	# ifdef __cplusplus
394	extern "C" {	400	extern "C" {
395	# endif	401	# endif
396	int eventfd (unsigned int initval, int flags);	402	int (eventfd) (unsigned int initval, int flags);
397	# ifdef __cplusplus	403	# ifdef __cplusplus
398	}	404	}
399	# endif	405	# endif
400	#endif	406	#endif
401		407
402	#if EV_USE_SIGNALFD	408	#if EV_USE_SIGNALFD
403	# include <sys/signalfd.h>	409	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		410	# include <stdint.h>
		411	# ifndef SFD_NONBLOCK
		412	# define SFD_NONBLOCK O_NONBLOCK
404	#endif	413	# endif
		414	# ifndef SFD_CLOEXEC
		415	# ifdef O_CLOEXEC
		416	# define SFD_CLOEXEC O_CLOEXEC
		417	# else
		418	# define SFD_CLOEXEC 02000000
		419	# endif
		420	# endif
		421	# ifdef __cplusplus
		422	extern "C" {
		423	# endif
		424	int signalfd (int fd, const sigset_t *mask, int flags);
		425
		426	struct signalfd_siginfo
		427	{
		428	uint32_t ssi_signo;
		429	char pad[128 - sizeof (uint32_t)];
		430	};
		431	# ifdef __cplusplus
		432	}
		433	# endif
		434	#endif
		435
405		436
406	/**/	437	/**/
407		438
408	#if EV_VERIFY >= 3	439	#if EV_VERIFY >= 3
409	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	440	# define EV_FREQUENT_CHECK ev_verify (EV_A)
410	#else	441	#else
411	# define EV_FREQUENT_CHECK do { } while (0)	442	# define EV_FREQUENT_CHECK do { } while (0)
412	#endif	443	#endif
413		444
414	/*	445	/*
…		…
421	*/	452	*/
422	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	453	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
423		454
424	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	455	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
425	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	456	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
426	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
427		457
428	#if __GNUC__ >= 4	458	#if __GNUC__ >= 4
429	# define expect(expr,value) __builtin_expect ((expr),(value))	459	# define expect(expr,value) __builtin_expect ((expr),(value))
430	# define noinline __attribute__ ((noinline))	460	# define noinline __attribute__ ((noinline))
431	#else	461	#else
…		…
438		468
439	#define expect_false(expr) expect ((expr) != 0, 0)	469	#define expect_false(expr) expect ((expr) != 0, 0)
440	#define expect_true(expr) expect ((expr) != 0, 1)	470	#define expect_true(expr) expect ((expr) != 0, 1)
441	#define inline_size static inline	471	#define inline_size static inline
442		472
443	#if EV_MINIMAL	473	#if EV_FEATURE_CODE
		474	# define inline_speed static inline
		475	#else
444	# define inline_speed static noinline	476	# define inline_speed static noinline
445	#else
446	# define inline_speed static inline
447	#endif	477	#endif
448		478
449	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	479	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
450		480
451	#if EV_MINPRI == EV_MAXPRI	481	#if EV_MINPRI == EV_MAXPRI
…		…
472		502
473	#if EV_USE_MONOTONIC	503	#if EV_USE_MONOTONIC
474	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	504	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
475	#endif	505	#endif
476		506
		507	#ifndef EV_FD_TO_WIN32_HANDLE
		508	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		509	#endif
		510	#ifndef EV_WIN32_HANDLE_TO_FD
		511	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		512	#endif
		513	#ifndef EV_WIN32_CLOSE_FD
		514	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		515	#endif
		516
477	#ifdef _WIN32	517	#ifdef _WIN32
478	# include "ev_win32.c"	518	# include "ev_win32.c"
479	#endif	519	#endif
480		520
481	/*****************************************************************************/	521	/*****************************************************************************/
		522
		523	#if EV_AVOID_STDIO
		524	static void noinline
		525	ev_printerr (const char *msg)
		526	{
		527	write (STDERR_FILENO, msg, strlen (msg));
		528	}
		529	#endif
482		530
483	static void (syserr_cb)(const char msg);	531	static void (syserr_cb)(const char msg);
484		532
485	void	533	void
486	ev_set_syserr_cb (void (cb)(const char msg))	534	ev_set_syserr_cb (void (cb)(const char msg))
…		…
496		544
497	if (syserr_cb)	545	if (syserr_cb)
498	syserr_cb (msg);	546	syserr_cb (msg);
499	else	547	else
500	{	548	{
		549	#if EV_AVOID_STDIO
		550	const char *err = strerror (errno);
		551
		552	ev_printerr (msg);
		553	ev_printerr (": ");
		554	ev_printerr (err);
		555	ev_printerr ("\n");
		556	#else
501	perror (msg);	557	perror (msg);
		558	#endif
502	abort ();	559	abort ();
503	}	560	}
504	}	561	}
505		562
506	static void *	563	static void *
507	ev_realloc_emul (void *ptr, long size)	564	ev_realloc_emul (void *ptr, long size)
508	{	565	{
		566	#if __GLIBC__
		567	return realloc (ptr, size);
		568	#else
509	/* some systems, notably openbsd and darwin, fail to properly	569	/* some systems, notably openbsd and darwin, fail to properly
510	* implement realloc (x, 0) (as required by both ansi c-98 and	570	* implement realloc (x, 0) (as required by both ansi c-89 and
511	* the single unix specification, so work around them here.	571	* the single unix specification, so work around them here.
512	*/	572	*/
513		573
514	if (size)	574	if (size)
515	return realloc (ptr, size);	575	return realloc (ptr, size);
516		576
517	free (ptr);	577	free (ptr);
518	return 0;	578	return 0;
		579	#endif
519	}	580	}
520		581
521	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	582	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
522		583
523	void	584	void
…		…
531	{	592	{
532	ptr = alloc (ptr, size);	593	ptr = alloc (ptr, size);
533		594
534	if (!ptr && size)	595	if (!ptr && size)
535	{	596	{
		597	#if EV_AVOID_STDIO
		598	ev_printerr ("libev: memory allocation failed, aborting.\n");
		599	#else
536	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	600	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		601	#endif
537	abort ();	602	abort ();
538	}	603	}
539		604
540	return ptr;	605	return ptr;
541	}	606	}
…		…
623		688
624	static int ev_default_loop_ptr;	689	static int ev_default_loop_ptr;
625		690
626	#endif	691	#endif
627		692
628	#if EV_MINIMAL < 2	693	#if EV_FEATURE_API
629	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	694	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
630	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	695	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
631	# define EV_INVOKE_PENDING invoke_cb (EV_A)	696	# define EV_INVOKE_PENDING invoke_cb (EV_A)
632	#else	697	#else
633	# define EV_RELEASE_CB (void)0	698	# define EV_RELEASE_CB (void)0
…		…
818	}	883	}
819		884
820	/*****************************************************************************/	885	/*****************************************************************************/
821		886
822	inline_speed void	887	inline_speed void
823	fd_event_nc (EV_P_ int fd, int revents)	888	fd_event_nocheck (EV_P_ int fd, int revents)
824	{	889	{
825	ANFD *anfd = anfds + fd;	890	ANFD *anfd = anfds + fd;
826	ev_io *w;	891	ev_io *w;
827		892
828	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	893	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
840	fd_event (EV_P_ int fd, int revents)	905	fd_event (EV_P_ int fd, int revents)
841	{	906	{
842	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
843		908
844	if (expect_true (!anfd->reify))	909	if (expect_true (!anfd->reify))
845	fd_event_nc (EV_A_ fd, revents);	910	fd_event_nocheck (EV_A_ fd, revents);
846	}	911	}
847		912
848	void	913	void
849	ev_feed_fd_event (EV_P_ int fd, int revents)	914	ev_feed_fd_event (EV_P_ int fd, int revents)
850	{	915	{
851	if (fd >= 0 && fd < anfdmax)	916	if (fd >= 0 && fd < anfdmax)
852	fd_event_nc (EV_A_ fd, revents);	917	fd_event_nocheck (EV_A_ fd, revents);
853	}	918	}
854		919
855	/* make sure the external fd watch events are in-sync */	920	/* make sure the external fd watch events are in-sync */
856	/* with the kernel/libev internal state */	921	/* with the kernel/libev internal state */
857	inline_size void	922	inline_size void
…		…
872		937
873	#if EV_SELECT_IS_WINSOCKET	938	#if EV_SELECT_IS_WINSOCKET
874	if (events)	939	if (events)
875	{	940	{
876	unsigned long arg;	941	unsigned long arg;
877	#ifdef EV_FD_TO_WIN32_HANDLE
878	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	942	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
879	#else
880	anfd->handle = _get_osfhandle (fd);
881	#endif
882	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	943	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
883	}	944	}
884	#endif	945	#endif
885		946
886	{	947	{
…		…
924	ev_io_stop (EV_A_ w);	985	ev_io_stop (EV_A_ w);
925	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	986	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
926	}	987	}
927	}	988	}
928		989
929	/* check whether the given fd is atcually valid, for error recovery */	990	/* check whether the given fd is actually valid, for error recovery */
930	inline_size int	991	inline_size int
931	fd_valid (int fd)	992	fd_valid (int fd)
932	{	993	{
933	#ifdef _WIN32	994	#ifdef _WIN32
934	return _get_osfhandle (fd) != -1;	995	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
935	#else	996	#else
936	return fcntl (fd, F_GETFD) != -1;	997	return fcntl (fd, F_GETFD) != -1;
937	#endif	998	#endif
938	}	999	}
939		1000
…		…
974	{	1035	{
975	anfds [fd].events = 0;	1036	anfds [fd].events = 0;
976	anfds [fd].emask = 0;	1037	anfds [fd].emask = 0;
977	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1038	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
978	}	1039	}
		1040	}
		1041
		1042	/* used to prepare libev internal fd's */
		1043	/* this is not fork-safe */
		1044	inline_speed void
		1045	fd_intern (int fd)
		1046	{
		1047	#ifdef _WIN32
		1048	unsigned long arg = 1;
		1049	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1050	#else
		1051	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1052	fcntl (fd, F_SETFL, O_NONBLOCK);
		1053	#endif
979	}	1054	}
980		1055
981	/*****************************************************************************/	1056	/*****************************************************************************/
982		1057
983	/*	1058	/*
…		…
1103		1178
1104	/* move an element suitably so it is in a correct place */	1179	/* move an element suitably so it is in a correct place */
1105	inline_size void	1180	inline_size void
1106	adjustheap (ANHE *heap, int N, int k)	1181	adjustheap (ANHE *heap, int N, int k)
1107	{	1182	{
1108	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1183	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1109	upheap (heap, k);	1184	upheap (heap, k);
1110	else	1185	else
1111	downheap (heap, N, k);	1186	downheap (heap, N, k);
1112	}	1187	}
1113		1188
…		…
1137		1212
1138	static ANSIG signals [EV_NSIG - 1];	1213	static ANSIG signals [EV_NSIG - 1];
1139		1214
1140	/*****************************************************************************/	1215	/*****************************************************************************/
1141		1216
1142	/* used to prepare libev internal fd's */	1217	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1143	/* this is not fork-safe */
1144	inline_speed void
1145	fd_intern (int fd)
1146	{
1147	#ifdef _WIN32
1148	unsigned long arg = 1;
1149	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1150	#else
1151	fcntl (fd, F_SETFD, FD_CLOEXEC);
1152	fcntl (fd, F_SETFL, O_NONBLOCK);
1153	#endif
1154	}
1155		1218
1156	static void noinline	1219	static void noinline
1157	evpipe_init (EV_P)	1220	evpipe_init (EV_P)
1158	{	1221	{
1159	if (!ev_is_active (&pipe_w))	1222	if (!ev_is_active (&pipe_w))
1160	{	1223	{
1161	#if EV_USE_EVENTFD	1224	# if EV_USE_EVENTFD
1162	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	1225	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1163	if (evfd < 0 && errno == EINVAL)	1226	if (evfd < 0 && errno == EINVAL)
1164	evfd = eventfd (0, 0);	1227	evfd = eventfd (0, 0);
1165		1228
1166	if (evfd >= 0)	1229	if (evfd >= 0)
…		…
1168	evpipe [0] = -1;	1231	evpipe [0] = -1;
1169	fd_intern (evfd); /* doing it twice doesn't hurt */	1232	fd_intern (evfd); /* doing it twice doesn't hurt */
1170	ev_io_set (&pipe_w, evfd, EV_READ);	1233	ev_io_set (&pipe_w, evfd, EV_READ);
1171	}	1234	}
1172	else	1235	else
1173	#endif	1236	# endif
1174	{	1237	{
1175	while (pipe (evpipe))	1238	while (pipe (evpipe))
1176	ev_syserr ("(libev) error creating signal/async pipe");	1239	ev_syserr ("(libev) error creating signal/async pipe");
1177		1240
1178	fd_intern (evpipe [0]);	1241	fd_intern (evpipe [0]);
…		…
1189	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1252	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1190	{	1253	{
1191	if (!*flag)	1254	if (!*flag)
1192	{	1255	{
1193	int old_errno = errno; /* save errno because write might clobber it */	1256	int old_errno = errno; /* save errno because write might clobber it */
		1257	char dummy;
1194		1258
1195	*flag = 1;	1259	*flag = 1;
1196		1260
1197	#if EV_USE_EVENTFD	1261	#if EV_USE_EVENTFD
1198	if (evfd >= 0)	1262	if (evfd >= 0)
…		…
1200	uint64_t counter = 1;	1264	uint64_t counter = 1;
1201	write (evfd, &counter, sizeof (uint64_t));	1265	write (evfd, &counter, sizeof (uint64_t));
1202	}	1266	}
1203	else	1267	else
1204	#endif	1268	#endif
1205	write (evpipe [1], &old_errno, 1);	1269	write (evpipe [1], &dummy, 1);
1206		1270
1207	errno = old_errno;	1271	errno = old_errno;
1208	}	1272	}
1209	}	1273	}
1210		1274
…		…
1259	{	1323	{
1260	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1261	EV_P = signals [signum - 1].loop;	1325	EV_P = signals [signum - 1].loop;
1262	#endif	1326	#endif
1263		1327
1264	#if _WIN32	1328	#ifdef _WIN32
1265	signal (signum, ev_sighandler);	1329	signal (signum, ev_sighandler);
1266	#endif	1330	#endif
1267		1331
1268	signals [signum - 1].pending = 1;	1332	signals [signum - 1].pending = 1;
1269	evpipe_write (EV_A_ &sig_pending);	1333	evpipe_write (EV_A_ &sig_pending);
…		…
1311	break;	1375	break;
1312	}	1376	}
1313	}	1377	}
1314	#endif	1378	#endif
1315		1379
		1380	#endif
		1381
1316	/*****************************************************************************/	1382	/*****************************************************************************/
1317		1383
		1384	#if EV_CHILD_ENABLE
1318	static WL childs [EV_PID_HASHSIZE];	1385	static WL childs [EV_PID_HASHSIZE];
1319
1320	#ifndef _WIN32
1321		1386
1322	static ev_signal childev;	1387	static ev_signal childev;
1323		1388
1324	#ifndef WIFCONTINUED	1389	#ifndef WIFCONTINUED
1325	# define WIFCONTINUED(status) 0	1390	# define WIFCONTINUED(status) 0
…		…
1330	child_reap (EV_P_ int chain, int pid, int status)	1395	child_reap (EV_P_ int chain, int pid, int status)
1331	{	1396	{
1332	ev_child *w;	1397	ev_child *w;
1333	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1398	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1334		1399
1335	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1400	for (w = (ev_child )childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child )((WL)w)->next)
1336	{	1401	{
1337	if ((w->pid == pid \|\| !w->pid)	1402	if ((w->pid == pid \|\| !w->pid)
1338	&& (!traced \|\| (w->flags & 1)))	1403	&& (!traced \|\| (w->flags & 1)))
1339	{	1404	{
1340	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */	1405	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
…		…
1365	/* make sure we are called again until all children have been reaped */	1430	/* make sure we are called again until all children have been reaped */
1366	/* we need to do it this way so that the callback gets called before we continue */	1431	/* we need to do it this way so that the callback gets called before we continue */
1367	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1432	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1368		1433
1369	child_reap (EV_A_ pid, pid, status);	1434	child_reap (EV_A_ pid, pid, status);
1370	if (EV_PID_HASHSIZE > 1)	1435	if ((EV_PID_HASHSIZE) > 1)
1371	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1436	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1372	}	1437	}
1373		1438
1374	#endif	1439	#endif
1375		1440
…		…
1464	ev_backend (EV_P)	1529	ev_backend (EV_P)
1465	{	1530	{
1466	return backend;	1531	return backend;
1467	}	1532	}
1468		1533
1469	#if EV_MINIMAL < 2	1534	#if EV_FEATURE_API
1470	unsigned int	1535	unsigned int
1471	ev_loop_count (EV_P)	1536	ev_iteration (EV_P)
1472	{	1537	{
1473	return loop_count;	1538	return loop_count;
1474	}	1539	}
1475		1540
1476	unsigned int	1541	unsigned int
1477	ev_loop_depth (EV_P)	1542	ev_depth (EV_P)
1478	{	1543	{
1479	return loop_depth;	1544	return loop_depth;
1480	}	1545	}
1481		1546
1482	void	1547	void
…		…
1554		1619
1555	ev_rt_now = ev_time ();	1620	ev_rt_now = ev_time ();
1556	mn_now = get_clock ();	1621	mn_now = get_clock ();
1557	now_floor = mn_now;	1622	now_floor = mn_now;
1558	rtmn_diff = ev_rt_now - mn_now;	1623	rtmn_diff = ev_rt_now - mn_now;
1559	#if EV_MINIMAL < 2	1624	#if EV_FEATURE_API
1560	invoke_cb = ev_invoke_pending;	1625	invoke_cb = ev_invoke_pending;
1561	#endif	1626	#endif
1562		1627
1563	io_blocktime = 0.;	1628	io_blocktime = 0.;
1564	timeout_blocktime = 0.;	1629	timeout_blocktime = 0.;
…		…
1570	#endif	1635	#endif
1571	#if EV_USE_INOTIFY	1636	#if EV_USE_INOTIFY
1572	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1637	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1573	#endif	1638	#endif
1574	#if EV_USE_SIGNALFD	1639	#if EV_USE_SIGNALFD
1575	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1640	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1576	#endif	1641	#endif
1577		1642
1578	if (!(flags & 0x0000ffffU))	1643	if (!(flags & 0x0000ffffU))
1579	flags \|= ev_recommended_backends ();	1644	flags \|= ev_recommended_backends ();
1580		1645
…		…
1594	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1659	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1595	#endif	1660	#endif
1596		1661
1597	ev_prepare_init (&pending_w, pendingcb);	1662	ev_prepare_init (&pending_w, pendingcb);
1598		1663
		1664	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1599	ev_init (&pipe_w, pipecb);	1665	ev_init (&pipe_w, pipecb);
1600	ev_set_priority (&pipe_w, EV_MAXPRI);	1666	ev_set_priority (&pipe_w, EV_MAXPRI);
		1667	#endif
1601	}	1668	}
1602	}	1669	}
1603		1670
1604	/* free up a loop structure */	1671	/* free up a loop structure */
1605	static void noinline	1672	static void noinline
…		…
1617	close (evfd);	1684	close (evfd);
1618	#endif	1685	#endif
1619		1686
1620	if (evpipe [0] >= 0)	1687	if (evpipe [0] >= 0)
1621	{	1688	{
1622	close (evpipe [0]);	1689	EV_WIN32_CLOSE_FD (evpipe [0]);
1623	close (evpipe [1]);	1690	EV_WIN32_CLOSE_FD (evpipe [1]);
1624	}	1691	}
1625	}	1692	}
1626		1693
1627	#if EV_USE_SIGNALFD	1694	#if EV_USE_SIGNALFD
1628	if (ev_is_active (&sigfd_w))	1695	if (ev_is_active (&sigfd_w))
1629	{
1630	/ev_ref (EV_A);/
1631	/ev_io_stop (EV_A_ &sigfd_w);/
1632
1633	close (sigfd);	1696	close (sigfd);
1634	}
1635	#endif	1697	#endif
1636		1698
1637	#if EV_USE_INOTIFY	1699	#if EV_USE_INOTIFY
1638	if (fs_fd >= 0)	1700	if (fs_fd >= 0)
1639	close (fs_fd);	1701	close (fs_fd);
…		…
1724	close (evfd);	1786	close (evfd);
1725	#endif	1787	#endif
1726		1788
1727	if (evpipe [0] >= 0)	1789	if (evpipe [0] >= 0)
1728	{	1790	{
1729	close (evpipe [0]);	1791	EV_WIN32_CLOSE_FD (evpipe [0]);
1730	close (evpipe [1]);	1792	EV_WIN32_CLOSE_FD (evpipe [1]);
1731	}	1793	}
1732		1794
		1795	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1733	evpipe_init (EV_A);	1796	evpipe_init (EV_A);
1734	/* now iterate over everything, in case we missed something */	1797	/* now iterate over everything, in case we missed something */
1735	pipecb (EV_A_ &pipe_w, EV_READ);	1798	pipecb (EV_A_ &pipe_w, EV_READ);
		1799	#endif
1736	}	1800	}
1737		1801
1738	postfork = 0;	1802	postfork = 0;
1739	}	1803	}
1740		1804
…		…
1802	verify_watcher (EV_A_ ws [cnt]);	1866	verify_watcher (EV_A_ ws [cnt]);
1803	}	1867	}
1804	}	1868	}
1805	#endif	1869	#endif
1806		1870
1807	#if EV_MINIMAL < 2	1871	#if EV_FEATURE_API
1808	void	1872	void
1809	ev_loop_verify (EV_P)	1873	ev_verify (EV_P)
1810	{	1874	{
1811	#if EV_VERIFY	1875	#if EV_VERIFY
1812	int i;	1876	int i;
1813	WL w;	1877	WL w;
1814		1878
…		…
1853	#if EV_ASYNC_ENABLE	1917	#if EV_ASYNC_ENABLE
1854	assert (asyncmax >= asynccnt);	1918	assert (asyncmax >= asynccnt);
1855	array_verify (EV_A_ (W *)asyncs, asynccnt);	1919	array_verify (EV_A_ (W *)asyncs, asynccnt);
1856	#endif	1920	#endif
1857		1921
		1922	#if EV_PREPARE_ENABLE
1858	assert (preparemax >= preparecnt);	1923	assert (preparemax >= preparecnt);
1859	array_verify (EV_A_ (W *)prepares, preparecnt);	1924	array_verify (EV_A_ (W *)prepares, preparecnt);
		1925	#endif
1860		1926
		1927	#if EV_CHECK_ENABLE
1861	assert (checkmax >= checkcnt);	1928	assert (checkmax >= checkcnt);
1862	array_verify (EV_A_ (W *)checks, checkcnt);	1929	array_verify (EV_A_ (W *)checks, checkcnt);
		1930	#endif
1863		1931
1864	# if 0	1932	# if 0
		1933	#if EV_CHILD_ENABLE
1865	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1934	for (w = (ev_child )childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child )((WL)w)->next)
1866	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)	1935	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1936	#endif
1867	# endif	1937	# endif
1868	#endif	1938	#endif
1869	}	1939	}
1870	#endif	1940	#endif
1871		1941
…		…
1887		1957
1888	loop_init (EV_A_ flags);	1958	loop_init (EV_A_ flags);
1889		1959
1890	if (ev_backend (EV_A))	1960	if (ev_backend (EV_A))
1891	{	1961	{
1892	#ifndef _WIN32	1962	#if EV_CHILD_ENABLE
1893	ev_signal_init (&childev, childcb, SIGCHLD);	1963	ev_signal_init (&childev, childcb, SIGCHLD);
1894	ev_set_priority (&childev, EV_MAXPRI);	1964	ev_set_priority (&childev, EV_MAXPRI);
1895	ev_signal_start (EV_A_ &childev);	1965	ev_signal_start (EV_A_ &childev);
1896	ev_unref (EV_A); /* child watcher should not keep loop alive */	1966	ev_unref (EV_A); /* child watcher should not keep loop alive */
1897	#endif	1967	#endif
…		…
1910	EV_P = ev_default_loop_ptr;	1980	EV_P = ev_default_loop_ptr;
1911	#endif	1981	#endif
1912		1982
1913	ev_default_loop_ptr = 0;	1983	ev_default_loop_ptr = 0;
1914		1984
1915	#ifndef _WIN32	1985	#if EV_CHILD_ENABLE
1916	ev_ref (EV_A); /* child watcher */	1986	ev_ref (EV_A); /* child watcher */
1917	ev_signal_stop (EV_A_ &childev);	1987	ev_signal_stop (EV_A_ &childev);
1918	#endif	1988	#endif
1919		1989
1920	loop_destroy (EV_A);	1990	loop_destroy (EV_A);
…		…
2127	ANHE_at_cache (*he);	2197	ANHE_at_cache (*he);
2128	}	2198	}
2129	}	2199	}
2130		2200
2131	/* fetch new monotonic and realtime times from the kernel */	2201	/* fetch new monotonic and realtime times from the kernel */
2132	/* also detetc if there was a timejump, and act accordingly */	2202	/* also detect if there was a timejump, and act accordingly */
2133	inline_speed void	2203	inline_speed void
2134	time_update (EV_P_ ev_tstamp max_block)	2204	time_update (EV_P_ ev_tstamp max_block)
2135	{	2205	{
2136	#if EV_USE_MONOTONIC	2206	#if EV_USE_MONOTONIC
2137	if (expect_true (have_monotonic))	2207	if (expect_true (have_monotonic))
…		…
2197	}	2267	}
2198		2268
2199	void	2269	void
2200	ev_loop (EV_P_ int flags)	2270	ev_loop (EV_P_ int flags)
2201	{	2271	{
2202	#if EV_MINIMAL < 2	2272	#if EV_FEATURE_API
2203	++loop_depth;	2273	++loop_depth;
2204	#endif	2274	#endif
2205		2275
2206	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2276	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2207		2277
…		…
2210	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2280	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2211		2281
2212	do	2282	do
2213	{	2283	{
2214	#if EV_VERIFY >= 2	2284	#if EV_VERIFY >= 2
2215	ev_loop_verify (EV_A);	2285	ev_verify (EV_A);
2216	#endif	2286	#endif
2217		2287
2218	#ifndef _WIN32	2288	#ifndef _WIN32
2219	if (expect_false (curpid)) /* penalise the forking check even more */	2289	if (expect_false (curpid)) /* penalise the forking check even more */
2220	if (expect_false (getpid () != curpid))	2290	if (expect_false (getpid () != curpid))
…		…
2232	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2302	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2233	EV_INVOKE_PENDING;	2303	EV_INVOKE_PENDING;
2234	}	2304	}
2235	#endif	2305	#endif
2236		2306
		2307	#if EV_PREPARE_ENABLE
2237	/* queue prepare watchers (and execute them) */	2308	/* queue prepare watchers (and execute them) */
2238	if (expect_false (preparecnt))	2309	if (expect_false (preparecnt))
2239	{	2310	{
2240	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2311	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2241	EV_INVOKE_PENDING;	2312	EV_INVOKE_PENDING;
2242	}	2313	}
		2314	#endif
2243		2315
2244	if (expect_false (loop_done))	2316	if (expect_false (loop_done))
2245	break;	2317	break;
2246		2318
2247	/* we might have forked, so reify kernel state if necessary */	2319	/* we might have forked, so reify kernel state if necessary */
…		…
2298	waittime -= sleeptime;	2370	waittime -= sleeptime;
2299	}	2371	}
2300	}	2372	}
2301	}	2373	}
2302		2374
2303	#if EV_MINIMAL < 2	2375	#if EV_FEATURE_API
2304	++loop_count;	2376	++loop_count;
2305	#endif	2377	#endif
2306	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2378	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2307	backend_poll (EV_A_ waittime);	2379	backend_poll (EV_A_ waittime);
2308	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2380	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2320	#if EV_IDLE_ENABLE	2392	#if EV_IDLE_ENABLE
2321	/* queue idle watchers unless other events are pending */	2393	/* queue idle watchers unless other events are pending */
2322	idle_reify (EV_A);	2394	idle_reify (EV_A);
2323	#endif	2395	#endif
2324		2396
		2397	#if EV_CHECK_ENABLE
2325	/* queue check watchers, to be executed first */	2398	/* queue check watchers, to be executed first */
2326	if (expect_false (checkcnt))	2399	if (expect_false (checkcnt))
2327	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2400	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2401	#endif
2328		2402
2329	EV_INVOKE_PENDING;	2403	EV_INVOKE_PENDING;
2330	}	2404	}
2331	while (expect_true (	2405	while (expect_true (
2332	activecnt	2406	activecnt
…		…
2335	));	2409	));
2336		2410
2337	if (loop_done == EVUNLOOP_ONE)	2411	if (loop_done == EVUNLOOP_ONE)
2338	loop_done = EVUNLOOP_CANCEL;	2412	loop_done = EVUNLOOP_CANCEL;
2339		2413
2340	#if EV_MINIMAL < 2	2414	#if EV_FEATURE_API
2341	--loop_depth;	2415	--loop_depth;
2342	#endif	2416	#endif
2343	}	2417	}
2344		2418
2345	void	2419	void
…		…
2471		2545
2472	if (expect_false (ev_is_active (w)))	2546	if (expect_false (ev_is_active (w)))
2473	return;	2547	return;
2474		2548
2475	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2549	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2476	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));	2550	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2477		2551
2478	EV_FREQUENT_CHECK;	2552	EV_FREQUENT_CHECK;
2479		2553
2480	ev_start (EV_A_ (W)w, 1);	2554	ev_start (EV_A_ (W)w, 1);
2481	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2555	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2551	timers [active] = timers [timercnt + HEAP0];	2625	timers [active] = timers [timercnt + HEAP0];
2552	adjustheap (timers, timercnt, active);	2626	adjustheap (timers, timercnt, active);
2553	}	2627	}
2554	}	2628	}
2555		2629
2556	EV_FREQUENT_CHECK;
2557
2558	ev_at (w) -= mn_now;	2630	ev_at (w) -= mn_now;
2559		2631
2560	ev_stop (EV_A_ (W)w);	2632	ev_stop (EV_A_ (W)w);
		2633
		2634	EV_FREQUENT_CHECK;
2561	}	2635	}
2562		2636
2563	void noinline	2637	void noinline
2564	ev_timer_again (EV_P_ ev_timer *w)	2638	ev_timer_again (EV_P_ ev_timer *w)
2565	{	2639	{
…		…
2644	periodics [active] = periodics [periodiccnt + HEAP0];	2718	periodics [active] = periodics [periodiccnt + HEAP0];
2645	adjustheap (periodics, periodiccnt, active);	2719	adjustheap (periodics, periodiccnt, active);
2646	}	2720	}
2647	}	2721	}
2648		2722
2649	EV_FREQUENT_CHECK;
2650
2651	ev_stop (EV_A_ (W)w);	2723	ev_stop (EV_A_ (W)w);
		2724
		2725	EV_FREQUENT_CHECK;
2652	}	2726	}
2653		2727
2654	void noinline	2728	void noinline
2655	ev_periodic_again (EV_P_ ev_periodic *w)	2729	ev_periodic_again (EV_P_ ev_periodic *w)
2656	{	2730	{
…		…
2661	#endif	2735	#endif
2662		2736
2663	#ifndef SA_RESTART	2737	#ifndef SA_RESTART
2664	# define SA_RESTART 0	2738	# define SA_RESTART 0
2665	#endif	2739	#endif
		2740
		2741	#if EV_SIGNAL_ENABLE
2666		2742
2667	void noinline	2743	void noinline
2668	ev_signal_start (EV_P_ ev_signal *w)	2744	ev_signal_start (EV_P_ ev_signal *w)
2669	{	2745	{
2670	if (expect_false (ev_is_active (w)))	2746	if (expect_false (ev_is_active (w)))
…		…
2717	if (!((WL)w)->next)	2793	if (!((WL)w)->next)
2718	# if EV_USE_SIGNALFD	2794	# if EV_USE_SIGNALFD
2719	if (sigfd < 0) /TODO/	2795	if (sigfd < 0) /TODO/
2720	# endif	2796	# endif
2721	{	2797	{
2722	# if _WIN32	2798	# ifdef _WIN32
		2799	evpipe_init (EV_A);
		2800
2723	signal (w->signum, ev_sighandler);	2801	signal (w->signum, ev_sighandler);
2724	# else	2802	# else
2725	struct sigaction sa;	2803	struct sigaction sa;
2726		2804
2727	evpipe_init (EV_A);	2805	evpipe_init (EV_A);
…		…
2758	signals [w->signum - 1].loop = 0; /* unattach from signal */	2836	signals [w->signum - 1].loop = 0; /* unattach from signal */
2759	#endif	2837	#endif
2760	#if EV_USE_SIGNALFD	2838	#if EV_USE_SIGNALFD
2761	if (sigfd >= 0)	2839	if (sigfd >= 0)
2762	{	2840	{
2763	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2841	sigset_t ss;
		2842
		2843	sigemptyset (&ss);
		2844	sigaddset (&ss, w->signum);
2764	sigdelset (&sigfd_set, w->signum);	2845	sigdelset (&sigfd_set, w->signum);
		2846
2765	signalfd (sigfd, &sigfd_set, 0);	2847	signalfd (sigfd, &sigfd_set, 0);
2766	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2848	sigprocmask (SIG_UNBLOCK, &ss, 0);
2767	/TODO: maybe unblock signal? /
2768	}	2849	}
2769	else	2850	else
2770	#endif	2851	#endif
2771	signal (w->signum, SIG_DFL);	2852	signal (w->signum, SIG_DFL);
2772	}	2853	}
2773		2854
2774	EV_FREQUENT_CHECK;	2855	EV_FREQUENT_CHECK;
2775	}	2856	}
2776		2857
		2858	#endif
		2859
		2860	#if EV_CHILD_ENABLE
		2861
2777	void	2862	void
2778	ev_child_start (EV_P_ ev_child *w)	2863	ev_child_start (EV_P_ ev_child *w)
2779	{	2864	{
2780	#if EV_MULTIPLICITY	2865	#if EV_MULTIPLICITY
2781	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2866	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2784	return;	2869	return;
2785		2870
2786	EV_FREQUENT_CHECK;	2871	EV_FREQUENT_CHECK;
2787		2872
2788	ev_start (EV_A_ (W)w, 1);	2873	ev_start (EV_A_ (W)w, 1);
2789	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2874	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2790		2875
2791	EV_FREQUENT_CHECK;	2876	EV_FREQUENT_CHECK;
2792	}	2877	}
2793		2878
2794	void	2879	void
…		…
2798	if (expect_false (!ev_is_active (w)))	2883	if (expect_false (!ev_is_active (w)))
2799	return;	2884	return;
2800		2885
2801	EV_FREQUENT_CHECK;	2886	EV_FREQUENT_CHECK;
2802		2887
2803	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2888	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2804	ev_stop (EV_A_ (W)w);	2889	ev_stop (EV_A_ (W)w);
2805		2890
2806	EV_FREQUENT_CHECK;	2891	EV_FREQUENT_CHECK;
2807	}	2892	}
		2893
		2894	#endif
2808		2895
2809	#if EV_STAT_ENABLE	2896	#if EV_STAT_ENABLE
2810		2897
2811	# ifdef _WIN32	2898	# ifdef _WIN32
2812	# undef lstat	2899	# undef lstat
…		…
2818	#define MIN_STAT_INTERVAL 0.1074891	2905	#define MIN_STAT_INTERVAL 0.1074891
2819		2906
2820	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2907	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2821		2908
2822	#if EV_USE_INOTIFY	2909	#if EV_USE_INOTIFY
2823	# define EV_INOTIFY_BUFSIZE 8192	2910
		2911	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2912	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2824		2913
2825	static void noinline	2914	static void noinline
2826	infy_add (EV_P_ ev_stat *w)	2915	infy_add (EV_P_ ev_stat *w)
2827	{	2916	{
2828	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);	2917	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);
2829		2918
2830	if (w->wd < 0)	2919	if (w->wd >= 0)
		2920	{
		2921	struct statfs sfs;
		2922
		2923	/* now local changes will be tracked by inotify, but remote changes won't */
		2924	/* unless the filesystem is known to be local, we therefore still poll */
		2925	/* also do poll on <2.6.25, but with normal frequency */
		2926
		2927	if (!fs_2625)
		2928	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2929	else if (!statfs (w->path, &sfs)
		2930	&& (sfs.f_type == 0x1373 /* devfs */
		2931	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2932	\|\| sfs.f_type == 0x3153464a /* jfs */
		2933	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2934	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2935	\|\| sfs.f_type == 0x58465342 /* xfs */))
		2936	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2937	else
		2938	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2831	{	2939	}
		2940	else
		2941	{
		2942	/* can't use inotify, continue to stat */
2832	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2943	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2833	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2834		2944
2835	/* monitor some parent directory for speedup hints */	2945	/* if path is not there, monitor some parent directory for speedup hints */
2836	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2946	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2837	/* but an efficiency issue only */	2947	/* but an efficiency issue only */
2838	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2948	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2839	{	2949	{
2840	char path [4096];	2950	char path [4096];
…		…
2856	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2966	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2857	}	2967	}
2858	}	2968	}
2859		2969
2860	if (w->wd >= 0)	2970	if (w->wd >= 0)
2861	{
2862	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2971	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2863		2972
2864	/* now local changes will be tracked by inotify, but remote changes won't */	2973	/* now re-arm timer, if required */
2865	/* unless the filesystem it known to be local, we therefore still poll */	2974	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2866	/* also do poll on <2.6.25, but with normal frequency */
2867	struct statfs sfs;
2868
2869	if (fs_2625 && !statfs (w->path, &sfs))
2870	if (sfs.f_type == 0x1373 /* devfs */
2871	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
2872	\|\| sfs.f_type == 0x3153464a /* jfs */
2873	\|\| sfs.f_type == 0x52654973 /* reiser3 */
2874	\|\| sfs.f_type == 0x01021994 /* tempfs */
2875	\|\| sfs.f_type == 0x58465342 /* xfs */)
2876	return;
2877
2878	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2879	ev_timer_again (EV_A_ &w->timer);	2975	ev_timer_again (EV_A_ &w->timer);
2880	}	2976	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2881	}	2977	}
2882		2978
2883	static void noinline	2979	static void noinline
2884	infy_del (EV_P_ ev_stat *w)	2980	infy_del (EV_P_ ev_stat *w)
2885	{	2981	{
…		…
2888		2984
2889	if (wd < 0)	2985	if (wd < 0)
2890	return;	2986	return;
2891		2987
2892	w->wd = -2;	2988	w->wd = -2;
2893	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	2989	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2894	wlist_del (&fs_hash [slot].head, (WL)w);	2990	wlist_del (&fs_hash [slot].head, (WL)w);
2895		2991
2896	/* remove this watcher, if others are watching it, they will rearm */	2992	/* remove this watcher, if others are watching it, they will rearm */
2897	inotify_rm_watch (fs_fd, wd);	2993	inotify_rm_watch (fs_fd, wd);
2898	}	2994	}
…		…
2900	static void noinline	2996	static void noinline
2901	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	2997	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2902	{	2998	{
2903	if (slot < 0)	2999	if (slot < 0)
2904	/* overflow, need to check for all hash slots */	3000	/* overflow, need to check for all hash slots */
2905	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3001	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2906	infy_wd (EV_A_ slot, wd, ev);	3002	infy_wd (EV_A_ slot, wd, ev);
2907	else	3003	else
2908	{	3004	{
2909	WL w_;	3005	WL w_;
2910		3006
2911	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3007	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2912	{	3008	{
2913	ev_stat w = (ev_stat )w_;	3009	ev_stat w = (ev_stat )w_;
2914	w_ = w_->next; /* lets us remove this watcher and all before it */	3010	w_ = w_->next; /* lets us remove this watcher and all before it */
2915		3011
2916	if (w->wd == wd \|\| wd == -1)	3012	if (w->wd == wd \|\| wd == -1)
2917	{	3013	{
2918	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	3014	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2919	{	3015	{
2920	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3016	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2921	w->wd = -1;	3017	w->wd = -1;
2922	infy_add (EV_A_ w); /* re-add, no matter what */	3018	infy_add (EV_A_ w); /* re-add, no matter what */
2923	}	3019	}
2924		3020
2925	stat_timer_cb (EV_A_ &w->timer, 0);	3021	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2930		3026
2931	static void	3027	static void
2932	infy_cb (EV_P_ ev_io *w, int revents)	3028	infy_cb (EV_P_ ev_io *w, int revents)
2933	{	3029	{
2934	char buf [EV_INOTIFY_BUFSIZE];	3030	char buf [EV_INOTIFY_BUFSIZE];
2935	struct inotify_event ev = (struct inotify_event )buf;
2936	int ofs;	3031	int ofs;
2937	int len = read (fs_fd, buf, sizeof (buf));	3032	int len = read (fs_fd, buf, sizeof (buf));
2938		3033
2939	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3034	for (ofs = 0; ofs < len; )
		3035	{
		3036	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2940	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3037	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3038	ofs += sizeof (struct inotify_event) + ev->len;
		3039	}
		3040	}
		3041
		3042	inline_size unsigned int
		3043	ev_linux_version (void)
		3044	{
		3045	struct utsname buf;
		3046	unsigned int v;
		3047	int i;
		3048	char *p = buf.release;
		3049
		3050	if (uname (&buf))
		3051	return 0;
		3052
		3053	for (i = 3+1; --i; )
		3054	{
		3055	unsigned int c = 0;
		3056
		3057	for (;;)
		3058	{
		3059	if (p >= '0' && p <= '9')
		3060	c = c * 10 + *p++ - '0';
		3061	else
		3062	{
		3063	p += *p == '.';
		3064	break;
		3065	}
		3066	}
		3067
		3068	v = (v << 8) \| c;
		3069	}
		3070
		3071	return v;
2941	}	3072	}
2942		3073
2943	inline_size void	3074	inline_size void
2944	check_2625 (EV_P)	3075	ev_check_2625 (EV_P)
2945	{	3076	{
2946	/* kernels < 2.6.25 are borked	3077	/* kernels < 2.6.25 are borked
2947	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3078	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2948	*/	3079	*/
2949	struct utsname buf;	3080	if (ev_linux_version () < 0x020619)
2950	int major, minor, micro;
2951
2952	if (uname (&buf))
2953	return;	3081	return;
2954		3082
2955	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2956	return;
2957
2958	if (major < 2
2959	\|\| (major == 2 && minor < 6)
2960	\|\| (major == 2 && minor == 6 && micro < 25))
2961	return;
2962
2963	fs_2625 = 1;	3083	fs_2625 = 1;
		3084	}
		3085
		3086	inline_size int
		3087	infy_newfd (void)
		3088	{
		3089	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3090	int fd = inotify_init1 (IN_CLOEXEC \| IN_NONBLOCK);
		3091	if (fd >= 0)
		3092	return fd;
		3093	#endif
		3094	return inotify_init ();
2964	}	3095	}
2965		3096
2966	inline_size void	3097	inline_size void
2967	infy_init (EV_P)	3098	infy_init (EV_P)
2968	{	3099	{
2969	if (fs_fd != -2)	3100	if (fs_fd != -2)
2970	return;	3101	return;
2971		3102
2972	fs_fd = -1;	3103	fs_fd = -1;
2973		3104
2974	check_2625 (EV_A);	3105	ev_check_2625 (EV_A);
2975		3106
2976	fs_fd = inotify_init ();	3107	fs_fd = infy_newfd ();
2977		3108
2978	if (fs_fd >= 0)	3109	if (fs_fd >= 0)
2979	{	3110	{
		3111	fd_intern (fs_fd);
2980	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3112	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2981	ev_set_priority (&fs_w, EV_MAXPRI);	3113	ev_set_priority (&fs_w, EV_MAXPRI);
2982	ev_io_start (EV_A_ &fs_w);	3114	ev_io_start (EV_A_ &fs_w);
		3115	ev_unref (EV_A);
2983	}	3116	}
2984	}	3117	}
2985		3118
2986	inline_size void	3119	inline_size void
2987	infy_fork (EV_P)	3120	infy_fork (EV_P)
…		…
2989	int slot;	3122	int slot;
2990		3123
2991	if (fs_fd < 0)	3124	if (fs_fd < 0)
2992	return;	3125	return;
2993		3126
		3127	ev_ref (EV_A);
		3128	ev_io_stop (EV_A_ &fs_w);
2994	close (fs_fd);	3129	close (fs_fd);
2995	fs_fd = inotify_init ();	3130	fs_fd = infy_newfd ();
2996		3131
		3132	if (fs_fd >= 0)
		3133	{
		3134	fd_intern (fs_fd);
		3135	ev_io_set (&fs_w, fs_fd, EV_READ);
		3136	ev_io_start (EV_A_ &fs_w);
		3137	ev_unref (EV_A);
		3138	}
		3139
2997	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3140	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2998	{	3141	{
2999	WL w_ = fs_hash [slot].head;	3142	WL w_ = fs_hash [slot].head;
3000	fs_hash [slot].head = 0;	3143	fs_hash [slot].head = 0;
3001		3144
3002	while (w_)	3145	while (w_)
…		…
3007	w->wd = -1;	3150	w->wd = -1;
3008		3151
3009	if (fs_fd >= 0)	3152	if (fs_fd >= 0)
3010	infy_add (EV_A_ w); /* re-add, no matter what */	3153	infy_add (EV_A_ w); /* re-add, no matter what */
3011	else	3154	else
		3155	{
		3156	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3157	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3012	ev_timer_again (EV_A_ &w->timer);	3158	ev_timer_again (EV_A_ &w->timer);
		3159	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3160	}
3013	}	3161	}
3014	}	3162	}
3015	}	3163	}
3016		3164
3017	#endif	3165	#endif
…		…
3034	static void noinline	3182	static void noinline
3035	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3183	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3036	{	3184	{
3037	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3185	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
3038		3186
3039	/* we copy this here each the time so that */	3187	ev_statdata prev = w->attr;
3040	/* prev has the old value when the callback gets invoked */
3041	w->prev = w->attr;
3042	ev_stat_stat (EV_A_ w);	3188	ev_stat_stat (EV_A_ w);
3043		3189
3044	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3190	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3045	if (	3191	if (
3046	w->prev.st_dev != w->attr.st_dev	3192	prev.st_dev != w->attr.st_dev
3047	\|\| w->prev.st_ino != w->attr.st_ino	3193	\|\| prev.st_ino != w->attr.st_ino
3048	\|\| w->prev.st_mode != w->attr.st_mode	3194	\|\| prev.st_mode != w->attr.st_mode
3049	\|\| w->prev.st_nlink != w->attr.st_nlink	3195	\|\| prev.st_nlink != w->attr.st_nlink
3050	\|\| w->prev.st_uid != w->attr.st_uid	3196	\|\| prev.st_uid != w->attr.st_uid
3051	\|\| w->prev.st_gid != w->attr.st_gid	3197	\|\| prev.st_gid != w->attr.st_gid
3052	\|\| w->prev.st_rdev != w->attr.st_rdev	3198	\|\| prev.st_rdev != w->attr.st_rdev
3053	\|\| w->prev.st_size != w->attr.st_size	3199	\|\| prev.st_size != w->attr.st_size
3054	\|\| w->prev.st_atime != w->attr.st_atime	3200	\|\| prev.st_atime != w->attr.st_atime
3055	\|\| w->prev.st_mtime != w->attr.st_mtime	3201	\|\| prev.st_mtime != w->attr.st_mtime
3056	\|\| w->prev.st_ctime != w->attr.st_ctime	3202	\|\| prev.st_ctime != w->attr.st_ctime
3057	) {	3203	) {
		3204	/* we only update w->prev on actual differences */
		3205	/* in case we test more often than invoke the callback, */
		3206	/* to ensure that prev is always different to attr */
		3207	w->prev = prev;
		3208
3058	#if EV_USE_INOTIFY	3209	#if EV_USE_INOTIFY
3059	if (fs_fd >= 0)	3210	if (fs_fd >= 0)
3060	{	3211	{
3061	infy_del (EV_A_ w);	3212	infy_del (EV_A_ w);
3062	infy_add (EV_A_ w);	3213	infy_add (EV_A_ w);
…		…
3087		3238
3088	if (fs_fd >= 0)	3239	if (fs_fd >= 0)
3089	infy_add (EV_A_ w);	3240	infy_add (EV_A_ w);
3090	else	3241	else
3091	#endif	3242	#endif
		3243	{
3092	ev_timer_again (EV_A_ &w->timer);	3244	ev_timer_again (EV_A_ &w->timer);
		3245	ev_unref (EV_A);
		3246	}
3093		3247
3094	ev_start (EV_A_ (W)w, 1);	3248	ev_start (EV_A_ (W)w, 1);
3095		3249
3096	EV_FREQUENT_CHECK;	3250	EV_FREQUENT_CHECK;
3097	}	3251	}
…		…
3106	EV_FREQUENT_CHECK;	3260	EV_FREQUENT_CHECK;
3107		3261
3108	#if EV_USE_INOTIFY	3262	#if EV_USE_INOTIFY
3109	infy_del (EV_A_ w);	3263	infy_del (EV_A_ w);
3110	#endif	3264	#endif
		3265
		3266	if (ev_is_active (&w->timer))
		3267	{
		3268	ev_ref (EV_A);
3111	ev_timer_stop (EV_A_ &w->timer);	3269	ev_timer_stop (EV_A_ &w->timer);
		3270	}
3112		3271
3113	ev_stop (EV_A_ (W)w);	3272	ev_stop (EV_A_ (W)w);
3114		3273
3115	EV_FREQUENT_CHECK;	3274	EV_FREQUENT_CHECK;
3116	}	3275	}
…		…
3161		3320
3162	EV_FREQUENT_CHECK;	3321	EV_FREQUENT_CHECK;
3163	}	3322	}
3164	#endif	3323	#endif
3165		3324
		3325	#if EV_PREPARE_ENABLE
3166	void	3326	void
3167	ev_prepare_start (EV_P_ ev_prepare *w)	3327	ev_prepare_start (EV_P_ ev_prepare *w)
3168	{	3328	{
3169	if (expect_false (ev_is_active (w)))	3329	if (expect_false (ev_is_active (w)))
3170	return;	3330	return;
…		…
3196		3356
3197	ev_stop (EV_A_ (W)w);	3357	ev_stop (EV_A_ (W)w);
3198		3358
3199	EV_FREQUENT_CHECK;	3359	EV_FREQUENT_CHECK;
3200	}	3360	}
		3361	#endif
3201		3362
		3363	#if EV_CHECK_ENABLE
3202	void	3364	void
3203	ev_check_start (EV_P_ ev_check *w)	3365	ev_check_start (EV_P_ ev_check *w)
3204	{	3366	{
3205	if (expect_false (ev_is_active (w)))	3367	if (expect_false (ev_is_active (w)))
3206	return;	3368	return;
…		…
3232		3394
3233	ev_stop (EV_A_ (W)w);	3395	ev_stop (EV_A_ (W)w);
3234		3396
3235	EV_FREQUENT_CHECK;	3397	EV_FREQUENT_CHECK;
3236	}	3398	}
		3399	#endif
3237		3400
3238	#if EV_EMBED_ENABLE	3401	#if EV_EMBED_ENABLE
3239	void noinline	3402	void noinline
3240	ev_embed_sweep (EV_P_ ev_embed *w)	3403	ev_embed_sweep (EV_P_ ev_embed *w)
3241	{	3404	{
…		…
3335	EV_FREQUENT_CHECK;	3498	EV_FREQUENT_CHECK;
3336		3499
3337	ev_io_stop (EV_A_ &w->io);	3500	ev_io_stop (EV_A_ &w->io);
3338	ev_prepare_stop (EV_A_ &w->prepare);	3501	ev_prepare_stop (EV_A_ &w->prepare);
3339	ev_fork_stop (EV_A_ &w->fork);	3502	ev_fork_stop (EV_A_ &w->fork);
		3503
		3504	ev_stop (EV_A_ (W)w);
3340		3505
3341	EV_FREQUENT_CHECK;	3506	EV_FREQUENT_CHECK;
3342	}	3507	}
3343	#endif	3508	#endif
3344		3509
…		…
3568	if (types & EV_ASYNC)	3733	if (types & EV_ASYNC)
3569	for (i = asynccnt; i--; )	3734	for (i = asynccnt; i--; )
3570	cb (EV_A_ EV_ASYNC, asyncs [i]);	3735	cb (EV_A_ EV_ASYNC, asyncs [i]);
3571	#endif	3736	#endif
3572		3737
		3738	#if EV_PREPARE_ENABLE
3573	if (types & EV_PREPARE)	3739	if (types & EV_PREPARE)
3574	for (i = preparecnt; i--; )	3740	for (i = preparecnt; i--; )
3575	#if EV_EMBED_ENABLE	3741	# if EV_EMBED_ENABLE
3576	if (ev_cb (prepares [i]) != embed_prepare_cb)	3742	if (ev_cb (prepares [i]) != embed_prepare_cb)
3577	#endif	3743	# endif
3578	cb (EV_A_ EV_PREPARE, prepares [i]);	3744	cb (EV_A_ EV_PREPARE, prepares [i]);
		3745	#endif
3579		3746
		3747	#if EV_CHECK_ENABLE
3580	if (types & EV_CHECK)	3748	if (types & EV_CHECK)
3581	for (i = checkcnt; i--; )	3749	for (i = checkcnt; i--; )
3582	cb (EV_A_ EV_CHECK, checks [i]);	3750	cb (EV_A_ EV_CHECK, checks [i]);
		3751	#endif
3583		3752
		3753	#if EV_SIGNAL_ENABLE
3584	if (types & EV_SIGNAL)	3754	if (types & EV_SIGNAL)
3585	for (i = 0; i < EV_NSIG - 1; ++i)	3755	for (i = 0; i < EV_NSIG - 1; ++i)
3586	for (wl = signals [i].head; wl; )	3756	for (wl = signals [i].head; wl; )
3587	{	3757	{
3588	wn = wl->next;	3758	wn = wl->next;
3589	cb (EV_A_ EV_SIGNAL, wl);	3759	cb (EV_A_ EV_SIGNAL, wl);
3590	wl = wn;	3760	wl = wn;
3591	}	3761	}
		3762	#endif
3592		3763
		3764	#if EV_CHILD_ENABLE
3593	if (types & EV_CHILD)	3765	if (types & EV_CHILD)
3594	for (i = EV_PID_HASHSIZE; i--; )	3766	for (i = (EV_PID_HASHSIZE); i--; )
3595	for (wl = childs [i]; wl; )	3767	for (wl = childs [i]; wl; )
3596	{	3768	{
3597	wn = wl->next;	3769	wn = wl->next;
3598	cb (EV_A_ EV_CHILD, wl);	3770	cb (EV_A_ EV_CHILD, wl);
3599	wl = wn;	3771	wl = wn;
3600	}	3772	}
		3773	#endif
3601	/* EV_STAT 0x00001000 /* stat data changed */	3774	/* EV_STAT 0x00001000 /* stat data changed */
3602	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3775	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3603	}	3776	}
3604	#endif	3777	#endif
3605		3778

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Comparing libev/ev.c (file contents): Revision 1.309 by root, Sun Jul 26 04:24:17 2009 UTC vs. Revision 1.340 by root, Tue Mar 16 20:39:29 2010 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.309 by root, Sun Jul 26 04:24:17 2009 UTC vs.
Revision 1.340 by root, Tue Mar 16 20:39:29 2010 UTC