[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 1.342 by root, Mon Mar 29 12:40:57 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
…		…
395	# endif	397	# endif
396	# endif	398	# endif
397	# ifdef __cplusplus	399	# ifdef __cplusplus
398	extern "C" {	400	extern "C" {
399	# endif	401	# endif
400	int eventfd (unsigned int initval, int flags);	402	int (eventfd) (unsigned int initval, int flags);
401	# ifdef __cplusplus	403	# ifdef __cplusplus
402	}	404	}
403	# endif	405	# endif
404	#endif	406	#endif
405		407
406	#if EV_USE_SIGNALFD	408	#if EV_USE_SIGNALFD
407	# 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
408	#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
409		436
410	/**/	437	/**/
411		438
412	#if EV_VERIFY >= 3	439	#if EV_VERIFY >= 3
413	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	440	# define EV_FREQUENT_CHECK ev_verify (EV_A)
414	#else	441	#else
415	# define EV_FREQUENT_CHECK do { } while (0)	442	# define EV_FREQUENT_CHECK do { } while (0)
416	#endif	443	#endif
417		444
418	/*	445	/*
…		…
425	*/	452	*/
426	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	453	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
427		454
428	#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) */
429	#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) */
430	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
431		457
432	#if __GNUC__ >= 4	458	#if __GNUC__ >= 4
433	# define expect(expr,value) __builtin_expect ((expr),(value))	459	# define expect(expr,value) __builtin_expect ((expr),(value))
434	# define noinline __attribute__ ((noinline))	460	# define noinline __attribute__ ((noinline))
435	#else	461	#else
…		…
442		468
443	#define expect_false(expr) expect ((expr) != 0, 0)	469	#define expect_false(expr) expect ((expr) != 0, 0)
444	#define expect_true(expr) expect ((expr) != 0, 1)	470	#define expect_true(expr) expect ((expr) != 0, 1)
445	#define inline_size static inline	471	#define inline_size static inline
446		472
447	#if EV_MINIMAL	473	#if EV_FEATURE_CODE
		474	# define inline_speed static inline
		475	#else
448	# define inline_speed static noinline	476	# define inline_speed static noinline
449	#else
450	# define inline_speed static inline
451	#endif	477	#endif
452		478
453	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	479	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
454		480
455	#if EV_MINPRI == EV_MAXPRI	481	#if EV_MINPRI == EV_MAXPRI
…		…
476		502
477	#if EV_USE_MONOTONIC	503	#if EV_USE_MONOTONIC
478	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? */
479	#endif	505	#endif
480		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
481	#ifdef _WIN32	517	#ifdef _WIN32
482	# include "ev_win32.c"	518	# include "ev_win32.c"
483	#endif	519	#endif
484		520
485	/*****************************************************************************/	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
486		530
487	static void (syserr_cb)(const char msg);	531	static void (syserr_cb)(const char msg);
488		532
489	void	533	void
490	ev_set_syserr_cb (void (cb)(const char msg))	534	ev_set_syserr_cb (void (cb)(const char msg))
…		…
500		544
501	if (syserr_cb)	545	if (syserr_cb)
502	syserr_cb (msg);	546	syserr_cb (msg);
503	else	547	else
504	{	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
505	perror (msg);	557	perror (msg);
		558	#endif
506	abort ();	559	abort ();
507	}	560	}
508	}	561	}
509		562
510	static void *	563	static void *
511	ev_realloc_emul (void *ptr, long size)	564	ev_realloc_emul (void *ptr, long size)
512	{	565	{
		566	#if __GLIBC__
		567	return realloc (ptr, size);
		568	#else
513	/* some systems, notably openbsd and darwin, fail to properly	569	/* some systems, notably openbsd and darwin, fail to properly
514	* 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
515	* the single unix specification, so work around them here.	571	* the single unix specification, so work around them here.
516	*/	572	*/
517		573
518	if (size)	574	if (size)
519	return realloc (ptr, size);	575	return realloc (ptr, size);
520		576
521	free (ptr);	577	free (ptr);
522	return 0;	578	return 0;
		579	#endif
523	}	580	}
524		581
525	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	582	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
526		583
527	void	584	void
…		…
535	{	592	{
536	ptr = alloc (ptr, size);	593	ptr = alloc (ptr, size);
537		594
538	if (!ptr && size)	595	if (!ptr && size)
539	{	596	{
		597	#if EV_AVOID_STDIO
		598	ev_printerr ("libev: memory allocation failed, aborting.\n");
		599	#else
540	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	600	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		601	#endif
541	abort ();	602	abort ();
542	}	603	}
543		604
544	return ptr;	605	return ptr;
545	}	606	}
…		…
627		688
628	static int ev_default_loop_ptr;	689	static int ev_default_loop_ptr;
629		690
630	#endif	691	#endif
631		692
632	#if EV_MINIMAL < 2	693	#if EV_FEATURE_API
633	# 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)
634	# 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)
635	# define EV_INVOKE_PENDING invoke_cb (EV_A)	696	# define EV_INVOKE_PENDING invoke_cb (EV_A)
636	#else	697	#else
637	# define EV_RELEASE_CB (void)0	698	# define EV_RELEASE_CB (void)0
…		…
822	}	883	}
823		884
824	/*****************************************************************************/	885	/*****************************************************************************/
825		886
826	inline_speed void	887	inline_speed void
827	fd_event_nc (EV_P_ int fd, int revents)	888	fd_event_nocheck (EV_P_ int fd, int revents)
828	{	889	{
829	ANFD *anfd = anfds + fd;	890	ANFD *anfd = anfds + fd;
830	ev_io *w;	891	ev_io *w;
831		892
832	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)
…		…
844	fd_event (EV_P_ int fd, int revents)	905	fd_event (EV_P_ int fd, int revents)
845	{	906	{
846	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
847		908
848	if (expect_true (!anfd->reify))	909	if (expect_true (!anfd->reify))
849	fd_event_nc (EV_A_ fd, revents);	910	fd_event_nocheck (EV_A_ fd, revents);
850	}	911	}
851		912
852	void	913	void
853	ev_feed_fd_event (EV_P_ int fd, int revents)	914	ev_feed_fd_event (EV_P_ int fd, int revents)
854	{	915	{
855	if (fd >= 0 && fd < anfdmax)	916	if (fd >= 0 && fd < anfdmax)
856	fd_event_nc (EV_A_ fd, revents);	917	fd_event_nocheck (EV_A_ fd, revents);
857	}	918	}
858		919
859	/* make sure the external fd watch events are in-sync */	920	/* make sure the external fd watch events are in-sync */
860	/* with the kernel/libev internal state */	921	/* with the kernel/libev internal state */
861	inline_size void	922	inline_size void
…		…
876		937
877	#if EV_SELECT_IS_WINSOCKET	938	#if EV_SELECT_IS_WINSOCKET
878	if (events)	939	if (events)
879	{	940	{
880	unsigned long arg;	941	unsigned long arg;
881	#ifdef EV_FD_TO_WIN32_HANDLE
882	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	942	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));	943	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
887	}	944	}
888	#endif	945	#endif
889		946
890	{	947	{
…		…
928	ev_io_stop (EV_A_ w);	985	ev_io_stop (EV_A_ w);
929	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);
930	}	987	}
931	}	988	}
932		989
933	/* check whether the given fd is atcually valid, for error recovery */	990	/* check whether the given fd is actually valid, for error recovery */
934	inline_size int	991	inline_size int
935	fd_valid (int fd)	992	fd_valid (int fd)
936	{	993	{
937	#ifdef _WIN32	994	#ifdef _WIN32
938	return _get_osfhandle (fd) != -1;	995	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
939	#else	996	#else
940	return fcntl (fd, F_GETFD) != -1;	997	return fcntl (fd, F_GETFD) != -1;
941	#endif	998	#endif
942	}	999	}
943		1000
…		…
978	{	1035	{
979	anfds [fd].events = 0;	1036	anfds [fd].events = 0;
980	anfds [fd].emask = 0;	1037	anfds [fd].emask = 0;
981	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);	1038	fd_change (EV_A_ fd, EV__IOFDSET \| EV_ANFD_REIFY);
982	}	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
983	}	1054	}
984		1055
985	/*****************************************************************************/	1056	/*****************************************************************************/
986		1057
987	/*	1058	/*
…		…
1141		1212
1142	static ANSIG signals [EV_NSIG - 1];	1213	static ANSIG signals [EV_NSIG - 1];
1143		1214
1144	/*****************************************************************************/	1215	/*****************************************************************************/
1145		1216
1146	/* used to prepare libev internal fd's */	1217	#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		1218
1160	static void noinline	1219	static void noinline
1161	evpipe_init (EV_P)	1220	evpipe_init (EV_P)
1162	{	1221	{
1163	if (!ev_is_active (&pipe_w))	1222	if (!ev_is_active (&pipe_w))
1164	{	1223	{
1165	#if EV_USE_EVENTFD	1224	# if EV_USE_EVENTFD
1166	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	1225	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1167	if (evfd < 0 && errno == EINVAL)	1226	if (evfd < 0 && errno == EINVAL)
1168	evfd = eventfd (0, 0);	1227	evfd = eventfd (0, 0);
1169		1228
1170	if (evfd >= 0)	1229	if (evfd >= 0)
…		…
1172	evpipe [0] = -1;	1231	evpipe [0] = -1;
1173	fd_intern (evfd); /* doing it twice doesn't hurt */	1232	fd_intern (evfd); /* doing it twice doesn't hurt */
1174	ev_io_set (&pipe_w, evfd, EV_READ);	1233	ev_io_set (&pipe_w, evfd, EV_READ);
1175	}	1234	}
1176	else	1235	else
1177	#endif	1236	# endif
1178	{	1237	{
1179	while (pipe (evpipe))	1238	while (pipe (evpipe))
1180	ev_syserr ("(libev) error creating signal/async pipe");	1239	ev_syserr ("(libev) error creating signal/async pipe");
1181		1240
1182	fd_intern (evpipe [0]);	1241	fd_intern (evpipe [0]);
…		…
1193	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1252	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1194	{	1253	{
1195	if (!*flag)	1254	if (!*flag)
1196	{	1255	{
1197	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;
1198		1258
1199	*flag = 1;	1259	*flag = 1;
1200		1260
1201	#if EV_USE_EVENTFD	1261	#if EV_USE_EVENTFD
1202	if (evfd >= 0)	1262	if (evfd >= 0)
…		…
1204	uint64_t counter = 1;	1264	uint64_t counter = 1;
1205	write (evfd, &counter, sizeof (uint64_t));	1265	write (evfd, &counter, sizeof (uint64_t));
1206	}	1266	}
1207	else	1267	else
1208	#endif	1268	#endif
1209	write (evpipe [1], &old_errno, 1);	1269	write (evpipe [1], &dummy, 1);
1210		1270
1211	errno = old_errno;	1271	errno = old_errno;
1212	}	1272	}
1213	}	1273	}
1214		1274
…		…
1263	{	1323	{
1264	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1265	EV_P = signals [signum - 1].loop;	1325	EV_P = signals [signum - 1].loop;
1266	#endif	1326	#endif
1267		1327
1268	#if _WIN32	1328	#ifdef _WIN32
1269	signal (signum, ev_sighandler);	1329	signal (signum, ev_sighandler);
1270	#endif	1330	#endif
1271		1331
1272	signals [signum - 1].pending = 1;	1332	signals [signum - 1].pending = 1;
1273	evpipe_write (EV_A_ &sig_pending);	1333	evpipe_write (EV_A_ &sig_pending);
…		…
1315	break;	1375	break;
1316	}	1376	}
1317	}	1377	}
1318	#endif	1378	#endif
1319		1379
		1380	#endif
		1381
1320	/*****************************************************************************/	1382	/*****************************************************************************/
1321		1383
		1384	#if EV_CHILD_ENABLE
1322	static WL childs [EV_PID_HASHSIZE];	1385	static WL childs [EV_PID_HASHSIZE];
1323
1324	#ifndef _WIN32
1325		1386
1326	static ev_signal childev;	1387	static ev_signal childev;
1327		1388
1328	#ifndef WIFCONTINUED	1389	#ifndef WIFCONTINUED
1329	# define WIFCONTINUED(status) 0	1390	# define WIFCONTINUED(status) 0
…		…
1334	child_reap (EV_P_ int chain, int pid, int status)	1395	child_reap (EV_P_ int chain, int pid, int status)
1335	{	1396	{
1336	ev_child *w;	1397	ev_child *w;
1337	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);	1398	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
1338		1399
1339	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)
1340	{	1401	{
1341	if ((w->pid == pid \|\| !w->pid)	1402	if ((w->pid == pid \|\| !w->pid)
1342	&& (!traced \|\| (w->flags & 1)))	1403	&& (!traced \|\| (w->flags & 1)))
1343	{	1404	{
1344	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 */
…		…
1369	/* 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 */
1370	/* 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 */
1371	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1432	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1372		1433
1373	child_reap (EV_A_ pid, pid, status);	1434	child_reap (EV_A_ pid, pid, status);
1374	if (EV_PID_HASHSIZE > 1)	1435	if ((EV_PID_HASHSIZE) > 1)
1375	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 */
1376	}	1437	}
1377		1438
1378	#endif	1439	#endif
1379		1440
…		…
1446	#ifdef __APPLE__	1507	#ifdef __APPLE__
1447	/* only select works correctly on that "unix-certified" platform */	1508	/* only select works correctly on that "unix-certified" platform */
1448	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1509	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1449	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1510	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1450	#endif	1511	#endif
		1512	#ifdef __FreeBSD__
		1513	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1514	#endif
1451		1515
1452	return flags;	1516	return flags;
1453	}	1517	}
1454		1518
1455	unsigned int	1519	unsigned int
…		…
1468	ev_backend (EV_P)	1532	ev_backend (EV_P)
1469	{	1533	{
1470	return backend;	1534	return backend;
1471	}	1535	}
1472		1536
1473	#if EV_MINIMAL < 2	1537	#if EV_FEATURE_API
1474	unsigned int	1538	unsigned int
1475	ev_loop_count (EV_P)	1539	ev_iteration (EV_P)
1476	{	1540	{
1477	return loop_count;	1541	return loop_count;
1478	}	1542	}
1479		1543
1480	unsigned int	1544	unsigned int
1481	ev_loop_depth (EV_P)	1545	ev_depth (EV_P)
1482	{	1546	{
1483	return loop_depth;	1547	return loop_depth;
1484	}	1548	}
1485		1549
1486	void	1550	void
…		…
1558		1622
1559	ev_rt_now = ev_time ();	1623	ev_rt_now = ev_time ();
1560	mn_now = get_clock ();	1624	mn_now = get_clock ();
1561	now_floor = mn_now;	1625	now_floor = mn_now;
1562	rtmn_diff = ev_rt_now - mn_now;	1626	rtmn_diff = ev_rt_now - mn_now;
1563	#if EV_MINIMAL < 2	1627	#if EV_FEATURE_API
1564	invoke_cb = ev_invoke_pending;	1628	invoke_cb = ev_invoke_pending;
1565	#endif	1629	#endif
1566		1630
1567	io_blocktime = 0.;	1631	io_blocktime = 0.;
1568	timeout_blocktime = 0.;	1632	timeout_blocktime = 0.;
…		…
1574	#endif	1638	#endif
1575	#if EV_USE_INOTIFY	1639	#if EV_USE_INOTIFY
1576	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1640	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1577	#endif	1641	#endif
1578	#if EV_USE_SIGNALFD	1642	#if EV_USE_SIGNALFD
1579	sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;	1643	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1580	#endif	1644	#endif
1581		1645
1582	if (!(flags & 0x0000ffffU))	1646	if (!(flags & 0x0000ffffU))
1583	flags \|= ev_recommended_backends ();	1647	flags \|= ev_recommended_backends ();
1584		1648
…		…
1598	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1662	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1599	#endif	1663	#endif
1600		1664
1601	ev_prepare_init (&pending_w, pendingcb);	1665	ev_prepare_init (&pending_w, pendingcb);
1602		1666
		1667	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1603	ev_init (&pipe_w, pipecb);	1668	ev_init (&pipe_w, pipecb);
1604	ev_set_priority (&pipe_w, EV_MAXPRI);	1669	ev_set_priority (&pipe_w, EV_MAXPRI);
		1670	#endif
1605	}	1671	}
1606	}	1672	}
1607		1673
1608	/* free up a loop structure */	1674	/* free up a loop structure */
1609	static void noinline	1675	static void noinline
…		…
1621	close (evfd);	1687	close (evfd);
1622	#endif	1688	#endif
1623		1689
1624	if (evpipe [0] >= 0)	1690	if (evpipe [0] >= 0)
1625	{	1691	{
1626	close (evpipe [0]);	1692	EV_WIN32_CLOSE_FD (evpipe [0]);
1627	close (evpipe [1]);	1693	EV_WIN32_CLOSE_FD (evpipe [1]);
1628	}	1694	}
1629	}	1695	}
1630		1696
1631	#if EV_USE_SIGNALFD	1697	#if EV_USE_SIGNALFD
1632	if (ev_is_active (&sigfd_w))	1698	if (ev_is_active (&sigfd_w))
1633	{
1634	/ev_ref (EV_A);/
1635	/ev_io_stop (EV_A_ &sigfd_w);/
1636
1637	close (sigfd);	1699	close (sigfd);
1638	}
1639	#endif	1700	#endif
1640		1701
1641	#if EV_USE_INOTIFY	1702	#if EV_USE_INOTIFY
1642	if (fs_fd >= 0)	1703	if (fs_fd >= 0)
1643	close (fs_fd);	1704	close (fs_fd);
…		…
1728	close (evfd);	1789	close (evfd);
1729	#endif	1790	#endif
1730		1791
1731	if (evpipe [0] >= 0)	1792	if (evpipe [0] >= 0)
1732	{	1793	{
1733	close (evpipe [0]);	1794	EV_WIN32_CLOSE_FD (evpipe [0]);
1734	close (evpipe [1]);	1795	EV_WIN32_CLOSE_FD (evpipe [1]);
1735	}	1796	}
1736		1797
		1798	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1737	evpipe_init (EV_A);	1799	evpipe_init (EV_A);
1738	/* now iterate over everything, in case we missed something */	1800	/* now iterate over everything, in case we missed something */
1739	pipecb (EV_A_ &pipe_w, EV_READ);	1801	pipecb (EV_A_ &pipe_w, EV_READ);
		1802	#endif
1740	}	1803	}
1741		1804
1742	postfork = 0;	1805	postfork = 0;
1743	}	1806	}
1744		1807
…		…
1806	verify_watcher (EV_A_ ws [cnt]);	1869	verify_watcher (EV_A_ ws [cnt]);
1807	}	1870	}
1808	}	1871	}
1809	#endif	1872	#endif
1810		1873
1811	#if EV_MINIMAL < 2	1874	#if EV_FEATURE_API
1812	void	1875	void
1813	ev_loop_verify (EV_P)	1876	ev_verify (EV_P)
1814	{	1877	{
1815	#if EV_VERIFY	1878	#if EV_VERIFY
1816	int i;	1879	int i;
1817	WL w;	1880	WL w;
1818		1881
…		…
1857	#if EV_ASYNC_ENABLE	1920	#if EV_ASYNC_ENABLE
1858	assert (asyncmax >= asynccnt);	1921	assert (asyncmax >= asynccnt);
1859	array_verify (EV_A_ (W *)asyncs, asynccnt);	1922	array_verify (EV_A_ (W *)asyncs, asynccnt);
1860	#endif	1923	#endif
1861		1924
		1925	#if EV_PREPARE_ENABLE
1862	assert (preparemax >= preparecnt);	1926	assert (preparemax >= preparecnt);
1863	array_verify (EV_A_ (W *)prepares, preparecnt);	1927	array_verify (EV_A_ (W *)prepares, preparecnt);
		1928	#endif
1864		1929
		1930	#if EV_CHECK_ENABLE
1865	assert (checkmax >= checkcnt);	1931	assert (checkmax >= checkcnt);
1866	array_verify (EV_A_ (W *)checks, checkcnt);	1932	array_verify (EV_A_ (W *)checks, checkcnt);
		1933	#endif
1867		1934
1868	# if 0	1935	# if 0
		1936	#if EV_CHILD_ENABLE
1869	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1937	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)	1938	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1939	#endif
1871	# endif	1940	# endif
1872	#endif	1941	#endif
1873	}	1942	}
1874	#endif	1943	#endif
1875		1944
…		…
1891		1960
1892	loop_init (EV_A_ flags);	1961	loop_init (EV_A_ flags);
1893		1962
1894	if (ev_backend (EV_A))	1963	if (ev_backend (EV_A))
1895	{	1964	{
1896	#ifndef _WIN32	1965	#if EV_CHILD_ENABLE
1897	ev_signal_init (&childev, childcb, SIGCHLD);	1966	ev_signal_init (&childev, childcb, SIGCHLD);
1898	ev_set_priority (&childev, EV_MAXPRI);	1967	ev_set_priority (&childev, EV_MAXPRI);
1899	ev_signal_start (EV_A_ &childev);	1968	ev_signal_start (EV_A_ &childev);
1900	ev_unref (EV_A); /* child watcher should not keep loop alive */	1969	ev_unref (EV_A); /* child watcher should not keep loop alive */
1901	#endif	1970	#endif
…		…
1914	EV_P = ev_default_loop_ptr;	1983	EV_P = ev_default_loop_ptr;
1915	#endif	1984	#endif
1916		1985
1917	ev_default_loop_ptr = 0;	1986	ev_default_loop_ptr = 0;
1918		1987
1919	#ifndef _WIN32	1988	#if EV_CHILD_ENABLE
1920	ev_ref (EV_A); /* child watcher */	1989	ev_ref (EV_A); /* child watcher */
1921	ev_signal_stop (EV_A_ &childev);	1990	ev_signal_stop (EV_A_ &childev);
1922	#endif	1991	#endif
1923		1992
1924	loop_destroy (EV_A);	1993	loop_destroy (EV_A);
…		…
2030	EV_FREQUENT_CHECK;	2099	EV_FREQUENT_CHECK;
2031	feed_reverse (EV_A_ (W)w);	2100	feed_reverse (EV_A_ (W)w);
2032	}	2101	}
2033	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2102	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2034		2103
2035	feed_reverse_done (EV_A_ EV_TIMEOUT);	2104	feed_reverse_done (EV_A_ EV_TIMER);
2036	}	2105	}
2037	}	2106	}
2038		2107
2039	#if EV_PERIODIC_ENABLE	2108	#if EV_PERIODIC_ENABLE
2040	/* make periodics pending */	2109	/* make periodics pending */
…		…
2131	ANHE_at_cache (*he);	2200	ANHE_at_cache (*he);
2132	}	2201	}
2133	}	2202	}
2134		2203
2135	/* fetch new monotonic and realtime times from the kernel */	2204	/* fetch new monotonic and realtime times from the kernel */
2136	/* also detetc if there was a timejump, and act accordingly */	2205	/* also detect if there was a timejump, and act accordingly */
2137	inline_speed void	2206	inline_speed void
2138	time_update (EV_P_ ev_tstamp max_block)	2207	time_update (EV_P_ ev_tstamp max_block)
2139	{	2208	{
2140	#if EV_USE_MONOTONIC	2209	#if EV_USE_MONOTONIC
2141	if (expect_true (have_monotonic))	2210	if (expect_true (have_monotonic))
…		…
2201	}	2270	}
2202		2271
2203	void	2272	void
2204	ev_loop (EV_P_ int flags)	2273	ev_loop (EV_P_ int flags)
2205	{	2274	{
2206	#if EV_MINIMAL < 2	2275	#if EV_FEATURE_API
2207	++loop_depth;	2276	++loop_depth;
2208	#endif	2277	#endif
2209		2278
2210	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2279	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2211		2280
…		…
2214	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2283	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2215		2284
2216	do	2285	do
2217	{	2286	{
2218	#if EV_VERIFY >= 2	2287	#if EV_VERIFY >= 2
2219	ev_loop_verify (EV_A);	2288	ev_verify (EV_A);
2220	#endif	2289	#endif
2221		2290
2222	#ifndef _WIN32	2291	#ifndef _WIN32
2223	if (expect_false (curpid)) /* penalise the forking check even more */	2292	if (expect_false (curpid)) /* penalise the forking check even more */
2224	if (expect_false (getpid () != curpid))	2293	if (expect_false (getpid () != curpid))
…		…
2236	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2305	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2237	EV_INVOKE_PENDING;	2306	EV_INVOKE_PENDING;
2238	}	2307	}
2239	#endif	2308	#endif
2240		2309
		2310	#if EV_PREPARE_ENABLE
2241	/* queue prepare watchers (and execute them) */	2311	/* queue prepare watchers (and execute them) */
2242	if (expect_false (preparecnt))	2312	if (expect_false (preparecnt))
2243	{	2313	{
2244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2314	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2245	EV_INVOKE_PENDING;	2315	EV_INVOKE_PENDING;
2246	}	2316	}
		2317	#endif
2247		2318
2248	if (expect_false (loop_done))	2319	if (expect_false (loop_done))
2249	break;	2320	break;
2250		2321
2251	/* we might have forked, so reify kernel state if necessary */	2322	/* we might have forked, so reify kernel state if necessary */
…		…
2302	waittime -= sleeptime;	2373	waittime -= sleeptime;
2303	}	2374	}
2304	}	2375	}
2305	}	2376	}
2306		2377
2307	#if EV_MINIMAL < 2	2378	#if EV_FEATURE_API
2308	++loop_count;	2379	++loop_count;
2309	#endif	2380	#endif
2310	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2381	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2311	backend_poll (EV_A_ waittime);	2382	backend_poll (EV_A_ waittime);
2312	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2383	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
…		…
2324	#if EV_IDLE_ENABLE	2395	#if EV_IDLE_ENABLE
2325	/* queue idle watchers unless other events are pending */	2396	/* queue idle watchers unless other events are pending */
2326	idle_reify (EV_A);	2397	idle_reify (EV_A);
2327	#endif	2398	#endif
2328		2399
		2400	#if EV_CHECK_ENABLE
2329	/* queue check watchers, to be executed first */	2401	/* queue check watchers, to be executed first */
2330	if (expect_false (checkcnt))	2402	if (expect_false (checkcnt))
2331	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2403	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2404	#endif
2332		2405
2333	EV_INVOKE_PENDING;	2406	EV_INVOKE_PENDING;
2334	}	2407	}
2335	while (expect_true (	2408	while (expect_true (
2336	activecnt	2409	activecnt
…		…
2339	));	2412	));
2340		2413
2341	if (loop_done == EVUNLOOP_ONE)	2414	if (loop_done == EVUNLOOP_ONE)
2342	loop_done = EVUNLOOP_CANCEL;	2415	loop_done = EVUNLOOP_CANCEL;
2343		2416
2344	#if EV_MINIMAL < 2	2417	#if EV_FEATURE_API
2345	--loop_depth;	2418	--loop_depth;
2346	#endif	2419	#endif
2347	}	2420	}
2348		2421
2349	void	2422	void
…		…
2475		2548
2476	if (expect_false (ev_is_active (w)))	2549	if (expect_false (ev_is_active (w)))
2477	return;	2550	return;
2478		2551
2479	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2552	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))));	2553	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET \| EV_READ \| EV_WRITE))));
2481		2554
2482	EV_FREQUENT_CHECK;	2555	EV_FREQUENT_CHECK;
2483		2556
2484	ev_start (EV_A_ (W)w, 1);	2557	ev_start (EV_A_ (W)w, 1);
2485	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2558	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2555	timers [active] = timers [timercnt + HEAP0];	2628	timers [active] = timers [timercnt + HEAP0];
2556	adjustheap (timers, timercnt, active);	2629	adjustheap (timers, timercnt, active);
2557	}	2630	}
2558	}	2631	}
2559		2632
2560	EV_FREQUENT_CHECK;
2561
2562	ev_at (w) -= mn_now;	2633	ev_at (w) -= mn_now;
2563		2634
2564	ev_stop (EV_A_ (W)w);	2635	ev_stop (EV_A_ (W)w);
		2636
		2637	EV_FREQUENT_CHECK;
2565	}	2638	}
2566		2639
2567	void noinline	2640	void noinline
2568	ev_timer_again (EV_P_ ev_timer *w)	2641	ev_timer_again (EV_P_ ev_timer *w)
2569	{	2642	{
…		…
2648	periodics [active] = periodics [periodiccnt + HEAP0];	2721	periodics [active] = periodics [periodiccnt + HEAP0];
2649	adjustheap (periodics, periodiccnt, active);	2722	adjustheap (periodics, periodiccnt, active);
2650	}	2723	}
2651	}	2724	}
2652		2725
2653	EV_FREQUENT_CHECK;
2654
2655	ev_stop (EV_A_ (W)w);	2726	ev_stop (EV_A_ (W)w);
		2727
		2728	EV_FREQUENT_CHECK;
2656	}	2729	}
2657		2730
2658	void noinline	2731	void noinline
2659	ev_periodic_again (EV_P_ ev_periodic *w)	2732	ev_periodic_again (EV_P_ ev_periodic *w)
2660	{	2733	{
…		…
2665	#endif	2738	#endif
2666		2739
2667	#ifndef SA_RESTART	2740	#ifndef SA_RESTART
2668	# define SA_RESTART 0	2741	# define SA_RESTART 0
2669	#endif	2742	#endif
		2743
		2744	#if EV_SIGNAL_ENABLE
2670		2745
2671	void noinline	2746	void noinline
2672	ev_signal_start (EV_P_ ev_signal *w)	2747	ev_signal_start (EV_P_ ev_signal *w)
2673	{	2748	{
2674	if (expect_false (ev_is_active (w)))	2749	if (expect_false (ev_is_active (w)))
…		…
2721	if (!((WL)w)->next)	2796	if (!((WL)w)->next)
2722	# if EV_USE_SIGNALFD	2797	# if EV_USE_SIGNALFD
2723	if (sigfd < 0) /TODO/	2798	if (sigfd < 0) /TODO/
2724	# endif	2799	# endif
2725	{	2800	{
2726	# if _WIN32	2801	# ifdef _WIN32
		2802	evpipe_init (EV_A);
		2803
2727	signal (w->signum, ev_sighandler);	2804	signal (w->signum, ev_sighandler);
2728	# else	2805	# else
2729	struct sigaction sa;	2806	struct sigaction sa;
2730		2807
2731	evpipe_init (EV_A);	2808	evpipe_init (EV_A);
…		…
2762	signals [w->signum - 1].loop = 0; /* unattach from signal */	2839	signals [w->signum - 1].loop = 0; /* unattach from signal */
2763	#endif	2840	#endif
2764	#if EV_USE_SIGNALFD	2841	#if EV_USE_SIGNALFD
2765	if (sigfd >= 0)	2842	if (sigfd >= 0)
2766	{	2843	{
2767	sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D	2844	sigset_t ss;
		2845
		2846	sigemptyset (&ss);
		2847	sigaddset (&ss, w->signum);
2768	sigdelset (&sigfd_set, w->signum);	2848	sigdelset (&sigfd_set, w->signum);
		2849
2769	signalfd (sigfd, &sigfd_set, 0);	2850	signalfd (sigfd, &sigfd_set, 0);
2770	sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D	2851	sigprocmask (SIG_UNBLOCK, &ss, 0);
2771	/TODO: maybe unblock signal? /
2772	}	2852	}
2773	else	2853	else
2774	#endif	2854	#endif
2775	signal (w->signum, SIG_DFL);	2855	signal (w->signum, SIG_DFL);
2776	}	2856	}
2777		2857
2778	EV_FREQUENT_CHECK;	2858	EV_FREQUENT_CHECK;
2779	}	2859	}
2780		2860
		2861	#endif
		2862
		2863	#if EV_CHILD_ENABLE
		2864
2781	void	2865	void
2782	ev_child_start (EV_P_ ev_child *w)	2866	ev_child_start (EV_P_ ev_child *w)
2783	{	2867	{
2784	#if EV_MULTIPLICITY	2868	#if EV_MULTIPLICITY
2785	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2869	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
…		…
2788	return;	2872	return;
2789		2873
2790	EV_FREQUENT_CHECK;	2874	EV_FREQUENT_CHECK;
2791		2875
2792	ev_start (EV_A_ (W)w, 1);	2876	ev_start (EV_A_ (W)w, 1);
2793	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2877	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2794		2878
2795	EV_FREQUENT_CHECK;	2879	EV_FREQUENT_CHECK;
2796	}	2880	}
2797		2881
2798	void	2882	void
…		…
2802	if (expect_false (!ev_is_active (w)))	2886	if (expect_false (!ev_is_active (w)))
2803	return;	2887	return;
2804		2888
2805	EV_FREQUENT_CHECK;	2889	EV_FREQUENT_CHECK;
2806		2890
2807	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2891	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2808	ev_stop (EV_A_ (W)w);	2892	ev_stop (EV_A_ (W)w);
2809		2893
2810	EV_FREQUENT_CHECK;	2894	EV_FREQUENT_CHECK;
2811	}	2895	}
		2896
		2897	#endif
2812		2898
2813	#if EV_STAT_ENABLE	2899	#if EV_STAT_ENABLE
2814		2900
2815	# ifdef _WIN32	2901	# ifdef _WIN32
2816	# undef lstat	2902	# undef lstat
…		…
2822	#define MIN_STAT_INTERVAL 0.1074891	2908	#define MIN_STAT_INTERVAL 0.1074891
2823		2909
2824	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2910	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2825		2911
2826	#if EV_USE_INOTIFY	2912	#if EV_USE_INOTIFY
2827	# define EV_INOTIFY_BUFSIZE 8192	2913
		2914	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2915	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2828		2916
2829	static void noinline	2917	static void noinline
2830	infy_add (EV_P_ ev_stat *w)	2918	infy_add (EV_P_ ev_stat *w)
2831	{	2919	{
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);	2920	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		2921
2834	if (w->wd < 0)	2922	if (w->wd >= 0)
		2923	{
		2924	struct statfs sfs;
		2925
		2926	/* now local changes will be tracked by inotify, but remote changes won't */
		2927	/* unless the filesystem is known to be local, we therefore still poll */
		2928	/* also do poll on <2.6.25, but with normal frequency */
		2929
		2930	if (!fs_2625)
		2931	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2932	else if (!statfs (w->path, &sfs)
		2933	&& (sfs.f_type == 0x1373 /* devfs */
		2934	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		2935	\|\| sfs.f_type == 0x3153464a /* jfs */
		2936	\|\| sfs.f_type == 0x52654973 /* reiser3 */
		2937	\|\| sfs.f_type == 0x01021994 /* tempfs */
		2938	\|\| sfs.f_type == 0x58465342 /* xfs */))
		2939	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2940	else
		2941	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2835	{	2942	}
		2943	else
		2944	{
		2945	/* can't use inotify, continue to stat */
2836	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2946	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		2947
2839	/* monitor some parent directory for speedup hints */	2948	/* 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, */	2949	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2841	/* but an efficiency issue only */	2950	/* but an efficiency issue only */
2842	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2951	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
2843	{	2952	{
2844	char path [4096];	2953	char path [4096];
…		…
2860	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	2969	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
2861	}	2970	}
2862	}	2971	}
2863		2972
2864	if (w->wd >= 0)	2973	if (w->wd >= 0)
2865	{
2866	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2974	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2867		2975
2868	/* now local changes will be tracked by inotify, but remote changes won't */	2976	/* now re-arm timer, if required */
2869	/* unless the filesystem it known to be local, we therefore still poll */	2977	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);	2978	ev_timer_again (EV_A_ &w->timer);
2884	}	2979	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2885	}	2980	}
2886		2981
2887	static void noinline	2982	static void noinline
2888	infy_del (EV_P_ ev_stat *w)	2983	infy_del (EV_P_ ev_stat *w)
2889	{	2984	{
…		…
2892		2987
2893	if (wd < 0)	2988	if (wd < 0)
2894	return;	2989	return;
2895		2990
2896	w->wd = -2;	2991	w->wd = -2;
2897	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	2992	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2898	wlist_del (&fs_hash [slot].head, (WL)w);	2993	wlist_del (&fs_hash [slot].head, (WL)w);
2899		2994
2900	/* remove this watcher, if others are watching it, they will rearm */	2995	/* remove this watcher, if others are watching it, they will rearm */
2901	inotify_rm_watch (fs_fd, wd);	2996	inotify_rm_watch (fs_fd, wd);
2902	}	2997	}
…		…
2904	static void noinline	2999	static void noinline
2905	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3000	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2906	{	3001	{
2907	if (slot < 0)	3002	if (slot < 0)
2908	/* overflow, need to check for all hash slots */	3003	/* overflow, need to check for all hash slots */
2909	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3004	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2910	infy_wd (EV_A_ slot, wd, ev);	3005	infy_wd (EV_A_ slot, wd, ev);
2911	else	3006	else
2912	{	3007	{
2913	WL w_;	3008	WL w_;
2914		3009
2915	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3010	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2916	{	3011	{
2917	ev_stat w = (ev_stat )w_;	3012	ev_stat w = (ev_stat )w_;
2918	w_ = w_->next; /* lets us remove this watcher and all before it */	3013	w_ = w_->next; /* lets us remove this watcher and all before it */
2919		3014
2920	if (w->wd == wd \|\| wd == -1)	3015	if (w->wd == wd \|\| wd == -1)
2921	{	3016	{
2922	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))	3017	if (ev->mask & (IN_IGNORED \| IN_UNMOUNT \| IN_DELETE_SELF))
2923	{	3018	{
2924	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3019	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2925	w->wd = -1;	3020	w->wd = -1;
2926	infy_add (EV_A_ w); /* re-add, no matter what */	3021	infy_add (EV_A_ w); /* re-add, no matter what */
2927	}	3022	}
2928		3023
2929	stat_timer_cb (EV_A_ &w->timer, 0);	3024	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2934		3029
2935	static void	3030	static void
2936	infy_cb (EV_P_ ev_io *w, int revents)	3031	infy_cb (EV_P_ ev_io *w, int revents)
2937	{	3032	{
2938	char buf [EV_INOTIFY_BUFSIZE];	3033	char buf [EV_INOTIFY_BUFSIZE];
2939	struct inotify_event ev = (struct inotify_event )buf;
2940	int ofs;	3034	int ofs;
2941	int len = read (fs_fd, buf, sizeof (buf));	3035	int len = read (fs_fd, buf, sizeof (buf));
2942		3036
2943	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3037	for (ofs = 0; ofs < len; )
		3038	{
		3039	struct inotify_event ev = (struct inotify_event )(buf + ofs);
2944	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3040	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3041	ofs += sizeof (struct inotify_event) + ev->len;
		3042	}
		3043	}
		3044
		3045	inline_size unsigned int
		3046	ev_linux_version (void)
		3047	{
		3048	struct utsname buf;
		3049	unsigned int v;
		3050	int i;
		3051	char *p = buf.release;
		3052
		3053	if (uname (&buf))
		3054	return 0;
		3055
		3056	for (i = 3+1; --i; )
		3057	{
		3058	unsigned int c = 0;
		3059
		3060	for (;;)
		3061	{
		3062	if (p >= '0' && p <= '9')
		3063	c = c * 10 + *p++ - '0';
		3064	else
		3065	{
		3066	p += *p == '.';
		3067	break;
		3068	}
		3069	}
		3070
		3071	v = (v << 8) \| c;
		3072	}
		3073
		3074	return v;
2945	}	3075	}
2946		3076
2947	inline_size void	3077	inline_size void
2948	check_2625 (EV_P)	3078	ev_check_2625 (EV_P)
2949	{	3079	{
2950	/* kernels < 2.6.25 are borked	3080	/* kernels < 2.6.25 are borked
2951	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3081	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2952	*/	3082	*/
2953	struct utsname buf;	3083	if (ev_linux_version () < 0x020619)
2954	int major, minor, micro;
2955
2956	if (uname (&buf))
2957	return;	3084	return;
2958		3085
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;	3086	fs_2625 = 1;
		3087	}
		3088
		3089	inline_size int
		3090	infy_newfd (void)
		3091	{
		3092	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3093	int fd = inotify_init1 (IN_CLOEXEC \| IN_NONBLOCK);
		3094	if (fd >= 0)
		3095	return fd;
		3096	#endif
		3097	return inotify_init ();
2968	}	3098	}
2969		3099
2970	inline_size void	3100	inline_size void
2971	infy_init (EV_P)	3101	infy_init (EV_P)
2972	{	3102	{
2973	if (fs_fd != -2)	3103	if (fs_fd != -2)
2974	return;	3104	return;
2975		3105
2976	fs_fd = -1;	3106	fs_fd = -1;
2977		3107
2978	check_2625 (EV_A);	3108	ev_check_2625 (EV_A);
2979		3109
2980	fs_fd = inotify_init ();	3110	fs_fd = infy_newfd ();
2981		3111
2982	if (fs_fd >= 0)	3112	if (fs_fd >= 0)
2983	{	3113	{
		3114	fd_intern (fs_fd);
2984	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3115	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2985	ev_set_priority (&fs_w, EV_MAXPRI);	3116	ev_set_priority (&fs_w, EV_MAXPRI);
2986	ev_io_start (EV_A_ &fs_w);	3117	ev_io_start (EV_A_ &fs_w);
		3118	ev_unref (EV_A);
2987	}	3119	}
2988	}	3120	}
2989		3121
2990	inline_size void	3122	inline_size void
2991	infy_fork (EV_P)	3123	infy_fork (EV_P)
…		…
2993	int slot;	3125	int slot;
2994		3126
2995	if (fs_fd < 0)	3127	if (fs_fd < 0)
2996	return;	3128	return;
2997		3129
		3130	ev_ref (EV_A);
		3131	ev_io_stop (EV_A_ &fs_w);
2998	close (fs_fd);	3132	close (fs_fd);
2999	fs_fd = inotify_init ();	3133	fs_fd = infy_newfd ();
3000		3134
		3135	if (fs_fd >= 0)
		3136	{
		3137	fd_intern (fs_fd);
		3138	ev_io_set (&fs_w, fs_fd, EV_READ);
		3139	ev_io_start (EV_A_ &fs_w);
		3140	ev_unref (EV_A);
		3141	}
		3142
3001	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3143	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3002	{	3144	{
3003	WL w_ = fs_hash [slot].head;	3145	WL w_ = fs_hash [slot].head;
3004	fs_hash [slot].head = 0;	3146	fs_hash [slot].head = 0;
3005		3147
3006	while (w_)	3148	while (w_)
…		…
3011	w->wd = -1;	3153	w->wd = -1;
3012		3154
3013	if (fs_fd >= 0)	3155	if (fs_fd >= 0)
3014	infy_add (EV_A_ w); /* re-add, no matter what */	3156	infy_add (EV_A_ w); /* re-add, no matter what */
3015	else	3157	else
		3158	{
		3159	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3160	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3016	ev_timer_again (EV_A_ &w->timer);	3161	ev_timer_again (EV_A_ &w->timer);
		3162	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3163	}
3017	}	3164	}
3018	}	3165	}
3019	}	3166	}
3020		3167
3021	#endif	3168	#endif
…		…
3038	static void noinline	3185	static void noinline
3039	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3186	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3040	{	3187	{
3041	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));	3188	ev_stat w = (ev_stat )(((char *)w_) - offsetof (ev_stat, timer));
3042		3189
3043	/* we copy this here each the time so that */	3190	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);	3191	ev_stat_stat (EV_A_ w);
3047		3192
3048	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3193	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
3049	if (	3194	if (
3050	w->prev.st_dev != w->attr.st_dev	3195	prev.st_dev != w->attr.st_dev
3051	\|\| w->prev.st_ino != w->attr.st_ino	3196	\|\| prev.st_ino != w->attr.st_ino
3052	\|\| w->prev.st_mode != w->attr.st_mode	3197	\|\| prev.st_mode != w->attr.st_mode
3053	\|\| w->prev.st_nlink != w->attr.st_nlink	3198	\|\| prev.st_nlink != w->attr.st_nlink
3054	\|\| w->prev.st_uid != w->attr.st_uid	3199	\|\| prev.st_uid != w->attr.st_uid
3055	\|\| w->prev.st_gid != w->attr.st_gid	3200	\|\| prev.st_gid != w->attr.st_gid
3056	\|\| w->prev.st_rdev != w->attr.st_rdev	3201	\|\| prev.st_rdev != w->attr.st_rdev
3057	\|\| w->prev.st_size != w->attr.st_size	3202	\|\| prev.st_size != w->attr.st_size
3058	\|\| w->prev.st_atime != w->attr.st_atime	3203	\|\| prev.st_atime != w->attr.st_atime
3059	\|\| w->prev.st_mtime != w->attr.st_mtime	3204	\|\| prev.st_mtime != w->attr.st_mtime
3060	\|\| w->prev.st_ctime != w->attr.st_ctime	3205	\|\| prev.st_ctime != w->attr.st_ctime
3061	) {	3206	) {
		3207	/* we only update w->prev on actual differences */
		3208	/* in case we test more often than invoke the callback, */
		3209	/* to ensure that prev is always different to attr */
		3210	w->prev = prev;
		3211
3062	#if EV_USE_INOTIFY	3212	#if EV_USE_INOTIFY
3063	if (fs_fd >= 0)	3213	if (fs_fd >= 0)
3064	{	3214	{
3065	infy_del (EV_A_ w);	3215	infy_del (EV_A_ w);
3066	infy_add (EV_A_ w);	3216	infy_add (EV_A_ w);
…		…
3091		3241
3092	if (fs_fd >= 0)	3242	if (fs_fd >= 0)
3093	infy_add (EV_A_ w);	3243	infy_add (EV_A_ w);
3094	else	3244	else
3095	#endif	3245	#endif
		3246	{
3096	ev_timer_again (EV_A_ &w->timer);	3247	ev_timer_again (EV_A_ &w->timer);
		3248	ev_unref (EV_A);
		3249	}
3097		3250
3098	ev_start (EV_A_ (W)w, 1);	3251	ev_start (EV_A_ (W)w, 1);
3099		3252
3100	EV_FREQUENT_CHECK;	3253	EV_FREQUENT_CHECK;
3101	}	3254	}
…		…
3110	EV_FREQUENT_CHECK;	3263	EV_FREQUENT_CHECK;
3111		3264
3112	#if EV_USE_INOTIFY	3265	#if EV_USE_INOTIFY
3113	infy_del (EV_A_ w);	3266	infy_del (EV_A_ w);
3114	#endif	3267	#endif
		3268
		3269	if (ev_is_active (&w->timer))
		3270	{
		3271	ev_ref (EV_A);
3115	ev_timer_stop (EV_A_ &w->timer);	3272	ev_timer_stop (EV_A_ &w->timer);
		3273	}
3116		3274
3117	ev_stop (EV_A_ (W)w);	3275	ev_stop (EV_A_ (W)w);
3118		3276
3119	EV_FREQUENT_CHECK;	3277	EV_FREQUENT_CHECK;
3120	}	3278	}
…		…
3165		3323
3166	EV_FREQUENT_CHECK;	3324	EV_FREQUENT_CHECK;
3167	}	3325	}
3168	#endif	3326	#endif
3169		3327
		3328	#if EV_PREPARE_ENABLE
3170	void	3329	void
3171	ev_prepare_start (EV_P_ ev_prepare *w)	3330	ev_prepare_start (EV_P_ ev_prepare *w)
3172	{	3331	{
3173	if (expect_false (ev_is_active (w)))	3332	if (expect_false (ev_is_active (w)))
3174	return;	3333	return;
…		…
3200		3359
3201	ev_stop (EV_A_ (W)w);	3360	ev_stop (EV_A_ (W)w);
3202		3361
3203	EV_FREQUENT_CHECK;	3362	EV_FREQUENT_CHECK;
3204	}	3363	}
		3364	#endif
3205		3365
		3366	#if EV_CHECK_ENABLE
3206	void	3367	void
3207	ev_check_start (EV_P_ ev_check *w)	3368	ev_check_start (EV_P_ ev_check *w)
3208	{	3369	{
3209	if (expect_false (ev_is_active (w)))	3370	if (expect_false (ev_is_active (w)))
3210	return;	3371	return;
…		…
3236		3397
3237	ev_stop (EV_A_ (W)w);	3398	ev_stop (EV_A_ (W)w);
3238		3399
3239	EV_FREQUENT_CHECK;	3400	EV_FREQUENT_CHECK;
3240	}	3401	}
		3402	#endif
3241		3403
3242	#if EV_EMBED_ENABLE	3404	#if EV_EMBED_ENABLE
3243	void noinline	3405	void noinline
3244	ev_embed_sweep (EV_P_ ev_embed *w)	3406	ev_embed_sweep (EV_P_ ev_embed *w)
3245	{	3407	{
…		…
3340		3502
3341	ev_io_stop (EV_A_ &w->io);	3503	ev_io_stop (EV_A_ &w->io);
3342	ev_prepare_stop (EV_A_ &w->prepare);	3504	ev_prepare_stop (EV_A_ &w->prepare);
3343	ev_fork_stop (EV_A_ &w->fork);	3505	ev_fork_stop (EV_A_ &w->fork);
3344		3506
		3507	ev_stop (EV_A_ (W)w);
		3508
3345	EV_FREQUENT_CHECK;	3509	EV_FREQUENT_CHECK;
3346	}	3510	}
3347	#endif	3511	#endif
3348		3512
3349	#if EV_FORK_ENABLE	3513	#if EV_FORK_ENABLE
…		…
3475	{	3639	{
3476	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	3640	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
3477		3641
3478	if (expect_false (!once))	3642	if (expect_false (!once))
3479	{	3643	{
3480	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	3644	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMER, arg);
3481	return;	3645	return;
3482	}	3646	}
3483		3647
3484	once->cb = cb;	3648	once->cb = cb;
3485	once->arg = arg;	3649	once->arg = arg;
…		…
3572	if (types & EV_ASYNC)	3736	if (types & EV_ASYNC)
3573	for (i = asynccnt; i--; )	3737	for (i = asynccnt; i--; )
3574	cb (EV_A_ EV_ASYNC, asyncs [i]);	3738	cb (EV_A_ EV_ASYNC, asyncs [i]);
3575	#endif	3739	#endif
3576		3740
		3741	#if EV_PREPARE_ENABLE
3577	if (types & EV_PREPARE)	3742	if (types & EV_PREPARE)
3578	for (i = preparecnt; i--; )	3743	for (i = preparecnt; i--; )
3579	#if EV_EMBED_ENABLE	3744	# if EV_EMBED_ENABLE
3580	if (ev_cb (prepares [i]) != embed_prepare_cb)	3745	if (ev_cb (prepares [i]) != embed_prepare_cb)
3581	#endif	3746	# endif
3582	cb (EV_A_ EV_PREPARE, prepares [i]);	3747	cb (EV_A_ EV_PREPARE, prepares [i]);
		3748	#endif
3583		3749
		3750	#if EV_CHECK_ENABLE
3584	if (types & EV_CHECK)	3751	if (types & EV_CHECK)
3585	for (i = checkcnt; i--; )	3752	for (i = checkcnt; i--; )
3586	cb (EV_A_ EV_CHECK, checks [i]);	3753	cb (EV_A_ EV_CHECK, checks [i]);
		3754	#endif
3587		3755
		3756	#if EV_SIGNAL_ENABLE
3588	if (types & EV_SIGNAL)	3757	if (types & EV_SIGNAL)
3589	for (i = 0; i < EV_NSIG - 1; ++i)	3758	for (i = 0; i < EV_NSIG - 1; ++i)
3590	for (wl = signals [i].head; wl; )	3759	for (wl = signals [i].head; wl; )
3591	{	3760	{
3592	wn = wl->next;	3761	wn = wl->next;
3593	cb (EV_A_ EV_SIGNAL, wl);	3762	cb (EV_A_ EV_SIGNAL, wl);
3594	wl = wn;	3763	wl = wn;
3595	}	3764	}
		3765	#endif
3596		3766
		3767	#if EV_CHILD_ENABLE
3597	if (types & EV_CHILD)	3768	if (types & EV_CHILD)
3598	for (i = EV_PID_HASHSIZE; i--; )	3769	for (i = (EV_PID_HASHSIZE); i--; )
3599	for (wl = childs [i]; wl; )	3770	for (wl = childs [i]; wl; )
3600	{	3771	{
3601	wn = wl->next;	3772	wn = wl->next;
3602	cb (EV_A_ EV_CHILD, wl);	3773	cb (EV_A_ EV_CHILD, wl);
3603	wl = wn;	3774	wl = wn;
3604	}	3775	}
		3776	#endif
3605	/* EV_STAT 0x00001000 /* stat data changed */	3777	/* EV_STAT 0x00001000 /* stat data changed */
3606	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3778	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3607	}	3779	}
3608	#endif	3780	#endif
3609		3781

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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 1.342 by root, Mon Mar 29 12:40:57 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 1.342 by root, Mon Mar 29 12:40:57 2010 UTC