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Comparing libev/ev.c (file contents):
Revision 1.287 by root, Mon Apr 20 19:45:58 2009 UTC vs.
Revision 1.344 by root, Fri Jul 9 20:55:14 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	*
…		…
57	# endif	57	# endif
58	# ifndef EV_USE_MONOTONIC	58	# ifndef EV_USE_MONOTONIC
59	# define EV_USE_MONOTONIC 1	59	# define EV_USE_MONOTONIC 1
60	# endif	60	# endif
61	# endif	61	# endif
		62	# elif !defined(EV_USE_CLOCK_SYSCALL)
		63	# define EV_USE_CLOCK_SYSCALL 0
62	# endif	64	# endif
63		65
64	# if HAVE_CLOCK_GETTIME	66	# if HAVE_CLOCK_GETTIME
65	# ifndef EV_USE_MONOTONIC	67	# ifndef EV_USE_MONOTONIC
66	# define EV_USE_MONOTONIC 1	68	# define EV_USE_MONOTONIC 1
…		…
75	# ifndef EV_USE_REALTIME	77	# ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 0	78	# define EV_USE_REALTIME 0
77	# endif	79	# endif
78	# endif	80	# endif
79		81
		82	# if HAVE_NANOSLEEP
80	# ifndef EV_USE_NANOSLEEP	83	# ifndef EV_USE_NANOSLEEP
81	# if HAVE_NANOSLEEP
82	# define EV_USE_NANOSLEEP 1	84	# define EV_USE_NANOSLEEP EV_FEATURE_OS
		85	# endif
83	# else	86	# else
		87	# undef EV_USE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 0	88	# define EV_USE_NANOSLEEP 0
		89	# endif
		90
		91	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		92	# ifndef EV_USE_SELECT
		93	# define EV_USE_SELECT EV_FEATURE_BACKENDS
85	# endif	94	# endif
		95	# else
		96	# undef EV_USE_SELECT
		97	# define EV_USE_SELECT 0
86	# endif	98	# endif
87		99
		100	# if HAVE_POLL && HAVE_POLL_H
88	# ifndef EV_USE_SELECT	101	# ifndef EV_USE_POLL
89	# if HAVE_SELECT && HAVE_SYS_SELECT_H	102	# define EV_USE_POLL EV_FEATURE_BACKENDS
90	# define EV_USE_SELECT 1
91	# else
92	# define EV_USE_SELECT 0
93	# endif	103	# endif
94	# endif
95
96	# ifndef EV_USE_POLL
97	# if HAVE_POLL && HAVE_POLL_H
98	# define EV_USE_POLL 1
99	# else	104	# else
		105	# undef EV_USE_POLL
100	# define EV_USE_POLL 0	106	# define EV_USE_POLL 0
101	# endif
102	# endif	107	# endif
103		108
104	# ifndef EV_USE_EPOLL
105	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	109	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
106	# define EV_USE_EPOLL 1	110	# ifndef EV_USE_EPOLL
107	# else	111	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
108	# define EV_USE_EPOLL 0
109	# endif	112	# endif
		113	# else
		114	# undef EV_USE_EPOLL
		115	# define EV_USE_EPOLL 0
110	# endif	116	# endif
111		117
		118	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
112	# ifndef EV_USE_KQUEUE	119	# ifndef EV_USE_KQUEUE
113	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	120	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
114	# define EV_USE_KQUEUE 1
115	# else
116	# define EV_USE_KQUEUE 0
117	# endif	121	# endif
		122	# else
		123	# undef EV_USE_KQUEUE
		124	# define EV_USE_KQUEUE 0
118	# endif	125	# endif
119		126
120	# ifndef EV_USE_PORT
121	# if HAVE_PORT_H && HAVE_PORT_CREATE	127	# if HAVE_PORT_H && HAVE_PORT_CREATE
122	# define EV_USE_PORT 1	128	# ifndef EV_USE_PORT
123	# else	129	# define EV_USE_PORT EV_FEATURE_BACKENDS
124	# define EV_USE_PORT 0
125	# endif	130	# endif
		131	# else
		132	# undef EV_USE_PORT
		133	# define EV_USE_PORT 0
126	# endif	134	# endif
127		135
128	# ifndef EV_USE_INOTIFY
129	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	136	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
130	# define EV_USE_INOTIFY 1	137	# ifndef EV_USE_INOTIFY
131	# else
132	# define EV_USE_INOTIFY 0	138	# define EV_USE_INOTIFY EV_FEATURE_OS
133	# endif	139	# endif
		140	# else
		141	# undef EV_USE_INOTIFY
		142	# define EV_USE_INOTIFY 0
134	# endif	143	# endif
135		144
		145	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
136	# ifndef EV_USE_EVENTFD	146	# ifndef EV_USE_SIGNALFD
137	# if HAVE_EVENTFD	147	# define EV_USE_SIGNALFD EV_FEATURE_OS
138	# define EV_USE_EVENTFD 1
139	# else
140	# define EV_USE_EVENTFD 0
141	# endif	148	# endif
		149	# else
		150	# undef EV_USE_SIGNALFD
		151	# define EV_USE_SIGNALFD 0
		152	# endif
		153
		154	# if HAVE_EVENTFD
		155	# ifndef EV_USE_EVENTFD
		156	# define EV_USE_EVENTFD EV_FEATURE_OS
		157	# endif
		158	# else
		159	# undef EV_USE_EVENTFD
		160	# define EV_USE_EVENTFD 0
142	# endif	161	# endif
143		162
144	#endif	163	#endif
145		164
146	#include <math.h>	165	#include <math.h>
147	#include <stdlib.h>	166	#include <stdlib.h>
		167	#include <string.h>
148	#include <fcntl.h>	168	#include <fcntl.h>
149	#include <stddef.h>	169	#include <stddef.h>
150		170
151	#include <stdio.h>	171	#include <stdio.h>
152		172
153	#include <assert.h>	173	#include <assert.h>
154	#include <errno.h>	174	#include <errno.h>
155	#include <sys/types.h>	175	#include <sys/types.h>
156	#include <time.h>	176	#include <time.h>
		177	#include <limits.h>
157		178
158	#include <signal.h>	179	#include <signal.h>
159		180
160	#ifdef EV_H	181	#ifdef EV_H
161	# include EV_H	182	# include EV_H
…		…
172	# define WIN32_LEAN_AND_MEAN	193	# define WIN32_LEAN_AND_MEAN
173	# include <windows.h>	194	# include <windows.h>
174	# ifndef EV_SELECT_IS_WINSOCKET	195	# ifndef EV_SELECT_IS_WINSOCKET
175	# define EV_SELECT_IS_WINSOCKET 1	196	# define EV_SELECT_IS_WINSOCKET 1
176	# endif	197	# endif
		198	# undef EV_AVOID_STDIO
177	#endif	199	#endif
		200
		201	/* OS X, in its infinite idiocy, actually HARDCODES
		202	* a limit of 1024 into their select. Where people have brains,
		203	* OS X engineers apparently have a vacuum. Or maybe they were
		204	* ordered to have a vacuum, or they do anything for money.
		205	* This might help. Or not.
		206	*/
		207	#define _DARWIN_UNLIMITED_SELECT 1
178		208
179	/* this block tries to deduce configuration from header-defined symbols and defaults */	209	/* this block tries to deduce configuration from header-defined symbols and defaults */
		210
		211	/* try to deduce the maximum number of signals on this platform */
		212	#if defined (EV_NSIG)
		213	/* use what's provided */
		214	#elif defined (NSIG)
		215	# define EV_NSIG (NSIG)
		216	#elif defined(_NSIG)
		217	# define EV_NSIG (_NSIG)
		218	#elif defined (SIGMAX)
		219	# define EV_NSIG (SIGMAX+1)
		220	#elif defined (SIG_MAX)
		221	# define EV_NSIG (SIG_MAX+1)
		222	#elif defined (_SIG_MAX)
		223	# define EV_NSIG (_SIG_MAX+1)
		224	#elif defined (MAXSIG)
		225	# define EV_NSIG (MAXSIG+1)
		226	#elif defined (MAX_SIG)
		227	# define EV_NSIG (MAX_SIG+1)
		228	#elif defined (SIGARRAYSIZE)
		229	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		230	#elif defined (_sys_nsig)
		231	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		232	#else
		233	# error "unable to find value for NSIG, please report"
		234	/* to make it compile regardless, just remove the above line, */
		235	/* but consider reporting it, too! :) */
		236	# define EV_NSIG 65
		237	#endif
180		238
181	#ifndef EV_USE_CLOCK_SYSCALL	239	#ifndef EV_USE_CLOCK_SYSCALL
182	# if __linux && __GLIBC__ >= 2	240	# if __linux && __GLIBC__ >= 2
183	# define EV_USE_CLOCK_SYSCALL 1	241	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
184	# else	242	# else
185	# define EV_USE_CLOCK_SYSCALL 0	243	# define EV_USE_CLOCK_SYSCALL 0
186	# endif	244	# endif
187	#endif	245	#endif
188		246
189	#ifndef EV_USE_MONOTONIC	247	#ifndef EV_USE_MONOTONIC
190	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	248	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
191	# define EV_USE_MONOTONIC 1	249	# define EV_USE_MONOTONIC EV_FEATURE_OS
192	# else	250	# else
193	# define EV_USE_MONOTONIC 0	251	# define EV_USE_MONOTONIC 0
194	# endif	252	# endif
195	#endif	253	#endif
196		254
…		…
198	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	256	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199	#endif	257	#endif
200		258
201	#ifndef EV_USE_NANOSLEEP	259	#ifndef EV_USE_NANOSLEEP
202	# if _POSIX_C_SOURCE >= 199309L	260	# if _POSIX_C_SOURCE >= 199309L
203	# define EV_USE_NANOSLEEP 1	261	# define EV_USE_NANOSLEEP EV_FEATURE_OS
204	# else	262	# else
205	# define EV_USE_NANOSLEEP 0	263	# define EV_USE_NANOSLEEP 0
206	# endif	264	# endif
207	#endif	265	#endif
208		266
209	#ifndef EV_USE_SELECT	267	#ifndef EV_USE_SELECT
210	# define EV_USE_SELECT 1	268	# define EV_USE_SELECT EV_FEATURE_BACKENDS
211	#endif	269	#endif
212		270
213	#ifndef EV_USE_POLL	271	#ifndef EV_USE_POLL
214	# ifdef _WIN32	272	# ifdef _WIN32
215	# define EV_USE_POLL 0	273	# define EV_USE_POLL 0
216	# else	274	# else
217	# define EV_USE_POLL 1	275	# define EV_USE_POLL EV_FEATURE_BACKENDS
218	# endif	276	# endif
219	#endif	277	#endif
220		278
221	#ifndef EV_USE_EPOLL	279	#ifndef EV_USE_EPOLL
222	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	280	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
223	# define EV_USE_EPOLL 1	281	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
224	# else	282	# else
225	# define EV_USE_EPOLL 0	283	# define EV_USE_EPOLL 0
226	# endif	284	# endif
227	#endif	285	#endif
228		286
…		…
234	# define EV_USE_PORT 0	292	# define EV_USE_PORT 0
235	#endif	293	#endif
236		294
237	#ifndef EV_USE_INOTIFY	295	#ifndef EV_USE_INOTIFY
238	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	296	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
239	# define EV_USE_INOTIFY 1	297	# define EV_USE_INOTIFY EV_FEATURE_OS
240	# else	298	# else
241	# define EV_USE_INOTIFY 0	299	# define EV_USE_INOTIFY 0
242	# endif	300	# endif
243	#endif	301	#endif
244		302
245	#ifndef EV_PID_HASHSIZE	303	#ifndef EV_PID_HASHSIZE
246	# if EV_MINIMAL	304	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
247	# define EV_PID_HASHSIZE 1
248	# else
249	# define EV_PID_HASHSIZE 16
250	# endif
251	#endif	305	#endif
252		306
253	#ifndef EV_INOTIFY_HASHSIZE	307	#ifndef EV_INOTIFY_HASHSIZE
254	# if EV_MINIMAL	308	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
255	# define EV_INOTIFY_HASHSIZE 1
256	# else
257	# define EV_INOTIFY_HASHSIZE 16
258	# endif
259	#endif	309	#endif
260		310
261	#ifndef EV_USE_EVENTFD	311	#ifndef EV_USE_EVENTFD
262	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	312	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
263	# define EV_USE_EVENTFD 1	313	# define EV_USE_EVENTFD EV_FEATURE_OS
264	# else	314	# else
265	# define EV_USE_EVENTFD 0	315	# define EV_USE_EVENTFD 0
		316	# endif
		317	#endif
		318
		319	#ifndef EV_USE_SIGNALFD
		320	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		321	# define EV_USE_SIGNALFD EV_FEATURE_OS
		322	# else
		323	# define EV_USE_SIGNALFD 0
266	# endif	324	# endif
267	#endif	325	#endif
268		326
269	#if 0 /* debugging */	327	#if 0 /* debugging */
270	# define EV_VERIFY 3	328	# define EV_VERIFY 3
271	# define EV_USE_4HEAP 1	329	# define EV_USE_4HEAP 1
272	# define EV_HEAP_CACHE_AT 1	330	# define EV_HEAP_CACHE_AT 1
273	#endif	331	#endif
274		332
275	#ifndef EV_VERIFY	333	#ifndef EV_VERIFY
276	# define EV_VERIFY !EV_MINIMAL	334	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
277	#endif	335	#endif
278		336
279	#ifndef EV_USE_4HEAP	337	#ifndef EV_USE_4HEAP
280	# define EV_USE_4HEAP !EV_MINIMAL	338	# define EV_USE_4HEAP EV_FEATURE_DATA
281	#endif	339	#endif
282		340
283	#ifndef EV_HEAP_CACHE_AT	341	#ifndef EV_HEAP_CACHE_AT
284	# define EV_HEAP_CACHE_AT !EV_MINIMAL	342	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
		343	#endif
		344
		345	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
		346	/* which makes programs even slower. might work on other unices, too. */
		347	#if EV_USE_CLOCK_SYSCALL
		348	# include <syscall.h>
		349	# ifdef SYS_clock_gettime
		350	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		351	# undef EV_USE_MONOTONIC
		352	# define EV_USE_MONOTONIC 1
		353	# else
		354	# undef EV_USE_CLOCK_SYSCALL
		355	# define EV_USE_CLOCK_SYSCALL 0
		356	# endif
285	#endif	357	#endif
286		358
287	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	359	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
		360
		361	#ifdef _AIX
		362	/* AIX has a completely broken poll.h header */
		363	# undef EV_USE_POLL
		364	# define EV_USE_POLL 0
		365	#endif
288		366
289	#ifndef CLOCK_MONOTONIC	367	#ifndef CLOCK_MONOTONIC
290	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
291	# define EV_USE_MONOTONIC 0	369	# define EV_USE_MONOTONIC 0
292	#endif	370	#endif
…		…
320		398
321	#if EV_SELECT_IS_WINSOCKET	399	#if EV_SELECT_IS_WINSOCKET
322	# include <winsock.h>	400	# include <winsock.h>
323	#endif	401	#endif
324		402
325	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326	/* which makes programs even slower. might work on other unices, too. */
327	#if EV_USE_CLOCK_SYSCALL
328	# include <syscall.h>
329	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330	# undef EV_USE_MONOTONIC
331	# define EV_USE_MONOTONIC 1
332	#endif
333
334	#if EV_USE_EVENTFD	403	#if EV_USE_EVENTFD
335	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	404	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336	# include <stdint.h>	405	# include <stdint.h>
		406	# ifndef EFD_NONBLOCK
		407	# define EFD_NONBLOCK O_NONBLOCK
		408	# endif
		409	# ifndef EFD_CLOEXEC
		410	# ifdef O_CLOEXEC
		411	# define EFD_CLOEXEC O_CLOEXEC
		412	# else
		413	# define EFD_CLOEXEC 02000000
		414	# endif
		415	# endif
337	# ifdef __cplusplus	416	# ifdef __cplusplus
338	extern "C" {	417	extern "C" {
339	# endif	418	# endif
340	int eventfd (unsigned int initval, int flags);	419	int (eventfd) (unsigned int initval, int flags);
341	# ifdef __cplusplus	420	# ifdef __cplusplus
342	}	421	}
343	# endif	422	# endif
344	#endif	423	#endif
345		424
		425	#if EV_USE_SIGNALFD
		426	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		427	# include <stdint.h>
		428	# ifndef SFD_NONBLOCK
		429	# define SFD_NONBLOCK O_NONBLOCK
		430	# endif
		431	# ifndef SFD_CLOEXEC
		432	# ifdef O_CLOEXEC
		433	# define SFD_CLOEXEC O_CLOEXEC
		434	# else
		435	# define SFD_CLOEXEC 02000000
		436	# endif
		437	# endif
		438	# ifdef __cplusplus
		439	extern "C" {
		440	# endif
		441	int signalfd (int fd, const sigset_t *mask, int flags);
		442
		443	struct signalfd_siginfo
		444	{
		445	uint32_t ssi_signo;
		446	char pad[128 - sizeof (uint32_t)];
		447	};
		448	# ifdef __cplusplus
		449	}
		450	# endif
		451	#endif
		452
		453
346	/**/	454	/**/
347		455
348	#if EV_VERIFY >= 3	456	#if EV_VERIFY >= 3
349	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	457	# define EV_FREQUENT_CHECK ev_verify (EV_A)
350	#else	458	#else
351	# define EV_FREQUENT_CHECK do { } while (0)	459	# define EV_FREQUENT_CHECK do { } while (0)
352	#endif	460	#endif
353		461
354	/*	462	/*
…		…
361	*/	469	*/
362	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	470	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363		471
364	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	472	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	473	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367		474
368	#if __GNUC__ >= 4	475	#if __GNUC__ >= 4
369	# define expect(expr,value) __builtin_expect ((expr),(value))	476	# define expect(expr,value) __builtin_expect ((expr),(value))
370	# define noinline __attribute__ ((noinline))	477	# define noinline __attribute__ ((noinline))
371	#else	478	#else
…		…
378		485
379	#define expect_false(expr) expect ((expr) != 0, 0)	486	#define expect_false(expr) expect ((expr) != 0, 0)
380	#define expect_true(expr) expect ((expr) != 0, 1)	487	#define expect_true(expr) expect ((expr) != 0, 1)
381	#define inline_size static inline	488	#define inline_size static inline
382		489
383	#if EV_MINIMAL	490	#if EV_FEATURE_CODE
		491	# define inline_speed static inline
		492	#else
384	# define inline_speed static noinline	493	# define inline_speed static noinline
		494	#endif
		495
		496	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		497
		498	#if EV_MINPRI == EV_MAXPRI
		499	# define ABSPRI(w) (((W)w), 0)
385	#else	500	#else
386	# define inline_speed static inline
387	#endif
388
389	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
390	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	501	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
		502	#endif
391		503
392	#define EMPTY /* required for microsofts broken pseudo-c compiler */	504	#define EMPTY /* required for microsofts broken pseudo-c compiler */
393	#define EMPTY2(a,b) /* used to suppress some warnings */	505	#define EMPTY2(a,b) /* used to suppress some warnings */
394		506
395	typedef ev_watcher *W;	507	typedef ev_watcher *W;
…		…
407		519
408	#if EV_USE_MONOTONIC	520	#if EV_USE_MONOTONIC
409	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	521	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
410	#endif	522	#endif
411		523
		524	#ifndef EV_FD_TO_WIN32_HANDLE
		525	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		526	#endif
		527	#ifndef EV_WIN32_HANDLE_TO_FD
		528	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		529	#endif
		530	#ifndef EV_WIN32_CLOSE_FD
		531	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		532	#endif
		533
412	#ifdef _WIN32	534	#ifdef _WIN32
413	# include "ev_win32.c"	535	# include "ev_win32.c"
414	#endif	536	#endif
415		537
416	/*****************************************************************************/	538	/*****************************************************************************/
		539
		540	#if EV_AVOID_STDIO
		541	static void noinline
		542	ev_printerr (const char *msg)
		543	{
		544	write (STDERR_FILENO, msg, strlen (msg));
		545	}
		546	#endif
417		547
418	static void (*syserr_cb)(const char *msg);	548	static void (*syserr_cb)(const char *msg);
419		549
420	void	550	void
421	ev_set_syserr_cb (void (*cb)(const char *msg))	551	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
431		561
432	if (syserr_cb)	562	if (syserr_cb)
433	syserr_cb (msg);	563	syserr_cb (msg);
434	else	564	else
435	{	565	{
		566	#if EV_AVOID_STDIO
		567	const char *err = strerror (errno);
		568
		569	ev_printerr (msg);
		570	ev_printerr (": ");
		571	ev_printerr (err);
		572	ev_printerr ("\n");
		573	#else
436	perror (msg);	574	perror (msg);
		575	#endif
437	abort ();	576	abort ();
438	}	577	}
439	}	578	}
440		579
441	static void *	580	static void *
442	ev_realloc_emul (void *ptr, long size)	581	ev_realloc_emul (void *ptr, long size)
443	{	582	{
		583	#if __GLIBC__
		584	return realloc (ptr, size);
		585	#else
444	/* some systems, notably openbsd and darwin, fail to properly	586	/* some systems, notably openbsd and darwin, fail to properly
445	* implement realloc (x, 0) (as required by both ansi c-98 and	587	* implement realloc (x, 0) (as required by both ansi c-89 and
446	* the single unix specification, so work around them here.	588	* the single unix specification, so work around them here.
447	*/	589	*/
448		590
449	if (size)	591	if (size)
450	return realloc (ptr, size);	592	return realloc (ptr, size);
451		593
452	free (ptr);	594	free (ptr);
453	return 0;	595	return 0;
		596	#endif
454	}	597	}
455		598
456	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	599	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
457		600
458	void	601	void
…		…
466	{	609	{
467	ptr = alloc (ptr, size);	610	ptr = alloc (ptr, size);
468		611
469	if (!ptr && size)	612	if (!ptr && size)
470	{	613	{
		614	#if EV_AVOID_STDIO
		615	ev_printerr ("libev: memory allocation failed, aborting.\n");
		616	#else
471	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	617	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		618	#endif
472	abort ();	619	abort ();
473	}	620	}
474		621
475	return ptr;	622	return ptr;
476	}	623	}
…		…
478	#define ev_malloc(size) ev_realloc (0, (size))	625	#define ev_malloc(size) ev_realloc (0, (size))
479	#define ev_free(ptr) ev_realloc ((ptr), 0)	626	#define ev_free(ptr) ev_realloc ((ptr), 0)
480		627
481	/*****************************************************************************/	628	/*****************************************************************************/
482		629
		630	/* set in reify when reification needed */
		631	#define EV_ANFD_REIFY 1
		632
		633	/* file descriptor info structure */
483	typedef struct	634	typedef struct
484	{	635	{
485	WL head;	636	WL head;
486	unsigned char events;	637	unsigned char events; /* the events watched for */
487	unsigned char reify;	638	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
488	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	639	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
489	unsigned char unused;	640	unsigned char unused;
490	#if EV_USE_EPOLL	641	#if EV_USE_EPOLL
491	unsigned int egen; /* generation counter to counter epoll bugs */	642	unsigned int egen; /* generation counter to counter epoll bugs */
492	#endif	643	#endif
493	#if EV_SELECT_IS_WINSOCKET	644	#if EV_SELECT_IS_WINSOCKET
494	SOCKET handle;	645	SOCKET handle;
495	#endif	646	#endif
496	} ANFD;	647	} ANFD;
497		648
		649	/* stores the pending event set for a given watcher */
498	typedef struct	650	typedef struct
499	{	651	{
500	W w;	652	W w;
501	int events;	653	int events; /* the pending event set for the given watcher */
502	} ANPENDING;	654	} ANPENDING;
503		655
504	#if EV_USE_INOTIFY	656	#if EV_USE_INOTIFY
505	/* hash table entry per inotify-id */	657	/* hash table entry per inotify-id */
506	typedef struct	658	typedef struct
…		…
509	} ANFS;	661	} ANFS;
510	#endif	662	#endif
511		663
512	/* Heap Entry */	664	/* Heap Entry */
513	#if EV_HEAP_CACHE_AT	665	#if EV_HEAP_CACHE_AT
		666	/* a heap element */
514	typedef struct {	667	typedef struct {
515	ev_tstamp at;	668	ev_tstamp at;
516	WT w;	669	WT w;
517	} ANHE;	670	} ANHE;
518		671
519	#define ANHE_w(he) (he).w /* access watcher, read-write */	672	#define ANHE_w(he) (he).w /* access watcher, read-write */
520	#define ANHE_at(he) (he).at /* access cached at, read-only */	673	#define ANHE_at(he) (he).at /* access cached at, read-only */
521	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */	674	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
522	#else	675	#else
		676	/* a heap element */
523	typedef WT ANHE;	677	typedef WT ANHE;
524		678
525	#define ANHE_w(he) (he)	679	#define ANHE_w(he) (he)
526	#define ANHE_at(he) (he)->at	680	#define ANHE_at(he) (he)->at
527	#define ANHE_at_cache(he)	681	#define ANHE_at_cache(he)
…		…
551		705
552	static int ev_default_loop_ptr;	706	static int ev_default_loop_ptr;
553		707
554	#endif	708	#endif
555		709
		710	#if EV_FEATURE_API
		711	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
		712	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
		713	# define EV_INVOKE_PENDING invoke_cb (EV_A)
		714	#else
		715	# define EV_RELEASE_CB (void)0
		716	# define EV_ACQUIRE_CB (void)0
		717	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
		718	#endif
		719
		720	#define EVUNLOOP_RECURSE 0x80
		721
556	/*****************************************************************************/	722	/*****************************************************************************/
557		723
		724	#ifndef EV_HAVE_EV_TIME
558	ev_tstamp	725	ev_tstamp
559	ev_time (void)	726	ev_time (void)
560	{	727	{
561	#if EV_USE_REALTIME	728	#if EV_USE_REALTIME
562	if (expect_true (have_realtime))	729	if (expect_true (have_realtime))
…		…
569		736
570	struct timeval tv;	737	struct timeval tv;
571	gettimeofday (&tv, 0);	738	gettimeofday (&tv, 0);
572	return tv.tv_sec + tv.tv_usec * 1e-6;	739	return tv.tv_sec + tv.tv_usec * 1e-6;
573	}	740	}
		741	#endif
574		742
575	inline_size ev_tstamp	743	inline_size ev_tstamp
576	get_clock (void)	744	get_clock (void)
577	{	745	{
578	#if EV_USE_MONOTONIC	746	#if EV_USE_MONOTONIC
…		…
614		782
615	tv.tv_sec = (time_t)delay;	783	tv.tv_sec = (time_t)delay;
616	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);	784	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
617		785
618	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	786	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
619	/* somehting nto guaranteed by newer posix versions, but guaranteed */	787	/* something not guaranteed by newer posix versions, but guaranteed */
620	/* by older ones */	788	/* by older ones */
621	select (0, 0, 0, 0, &tv);	789	select (0, 0, 0, 0, &tv);
622	#endif	790	#endif
623	}	791	}
624	}	792	}
625		793
626	/*****************************************************************************/	794	/*****************************************************************************/
627		795
628	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	796	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
629		797
		798	/* find a suitable new size for the given array, */
		799	/* hopefully by rounding to a ncie-to-malloc size */
630	inline_size int	800	inline_size int
631	array_nextsize (int elem, int cur, int cnt)	801	array_nextsize (int elem, int cur, int cnt)
632	{	802	{
633	int ncur = cur + 1;	803	int ncur = cur + 1;
634		804
…		…
680	#define array_free(stem, idx) \	850	#define array_free(stem, idx) \
681	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	851	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
682		852
683	/*****************************************************************************/	853	/*****************************************************************************/
684		854
		855	/* dummy callback for pending events */
		856	static void noinline
		857	pendingcb (EV_P_ ev_prepare *w, int revents)
		858	{
		859	}
		860
685	void noinline	861	void noinline
686	ev_feed_event (EV_P_ void *w, int revents)	862	ev_feed_event (EV_P_ void *w, int revents)
687	{	863	{
688	W w_ = (W)w;	864	W w_ = (W)w;
689	int pri = ABSPRI (w_);	865	int pri = ABSPRI (w_);
…		…
724	}	900	}
725		901
726	/*****************************************************************************/	902	/*****************************************************************************/
727		903
728	inline_speed void	904	inline_speed void
729	fd_event (EV_P_ int fd, int revents)	905	fd_event_nocheck (EV_P_ int fd, int revents)
730	{	906	{
731	ANFD *anfd = anfds + fd;	907	ANFD *anfd = anfds + fd;
732	ev_io *w;	908	ev_io *w;
733		909
734	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	910	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
738	if (ev)	914	if (ev)
739	ev_feed_event (EV_A_ (W)w, ev);	915	ev_feed_event (EV_A_ (W)w, ev);
740	}	916	}
741	}	917	}
742		918
		919	/* do not submit kernel events for fds that have reify set */
		920	/* because that means they changed while we were polling for new events */
		921	inline_speed void
		922	fd_event (EV_P_ int fd, int revents)
		923	{
		924	ANFD *anfd = anfds + fd;
		925
		926	if (expect_true (!anfd->reify))
		927	fd_event_nocheck (EV_A_ fd, revents);
		928	}
		929
743	void	930	void
744	ev_feed_fd_event (EV_P_ int fd, int revents)	931	ev_feed_fd_event (EV_P_ int fd, int revents)
745	{	932	{
746	if (fd >= 0 && fd < anfdmax)	933	if (fd >= 0 && fd < anfdmax)
747	fd_event (EV_A_ fd, revents);	934	fd_event_nocheck (EV_A_ fd, revents);
748	}	935	}
749		936
		937	/* make sure the external fd watch events are in-sync */
		938	/* with the kernel/libev internal state */
750	inline_size void	939	inline_size void
751	fd_reify (EV_P)	940	fd_reify (EV_P)
752	{	941	{
753	int i;	942	int i;
754		943
…		…
765		954
766	#if EV_SELECT_IS_WINSOCKET	955	#if EV_SELECT_IS_WINSOCKET
767	if (events)	956	if (events)
768	{	957	{
769	unsigned long arg;	958	unsigned long arg;
770	#ifdef EV_FD_TO_WIN32_HANDLE
771	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	959	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
772	#else
773	anfd->handle = _get_osfhandle (fd);
774	#endif
775	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	960	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
776	}	961	}
777	#endif	962	#endif
778		963
779	{	964	{
…		…
789	}	974	}
790		975
791	fdchangecnt = 0;	976	fdchangecnt = 0;
792	}	977	}
793		978
		979	/* something about the given fd changed */
794	inline_size void	980	inline_size void
795	fd_change (EV_P_ int fd, int flags)	981	fd_change (EV_P_ int fd, int flags)
796	{	982	{
797	unsigned char reify = anfds [fd].reify;	983	unsigned char reify = anfds [fd].reify;
798	anfds [fd].reify |= flags;	984	anfds [fd].reify |= flags;
…		…
803	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	989	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
804	fdchanges [fdchangecnt - 1] = fd;	990	fdchanges [fdchangecnt - 1] = fd;
805	}	991	}
806	}	992	}
807		993
		994	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
808	inline_speed void	995	inline_speed void
809	fd_kill (EV_P_ int fd)	996	fd_kill (EV_P_ int fd)
810	{	997	{
811	ev_io *w;	998	ev_io *w;
812		999
…		…
815	ev_io_stop (EV_A_ w);	1002	ev_io_stop (EV_A_ w);
816	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1003	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
817	}	1004	}
818	}	1005	}
819		1006
		1007	/* check whether the given fd is actually valid, for error recovery */
820	inline_size int	1008	inline_size int
821	fd_valid (int fd)	1009	fd_valid (int fd)
822	{	1010	{
823	#ifdef _WIN32	1011	#ifdef _WIN32
824	return _get_osfhandle (fd) != -1;	1012	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
825	#else	1013	#else
826	return fcntl (fd, F_GETFD) != -1;	1014	return fcntl (fd, F_GETFD) != -1;
827	#endif	1015	#endif
828	}	1016	}
829		1017
…		…
847		1035
848	for (fd = anfdmax; fd--; )	1036	for (fd = anfdmax; fd--; )
849	if (anfds [fd].events)	1037	if (anfds [fd].events)
850	{	1038	{
851	fd_kill (EV_A_ fd);	1039	fd_kill (EV_A_ fd);
852	return;	1040	break;
853	}	1041	}
854	}	1042	}
855		1043
856	/* usually called after fork if backend needs to re-arm all fds from scratch */	1044	/* usually called after fork if backend needs to re-arm all fds from scratch */
857	static void noinline	1045	static void noinline
…		…
862	for (fd = 0; fd < anfdmax; ++fd)	1050	for (fd = 0; fd < anfdmax; ++fd)
863	if (anfds [fd].events)	1051	if (anfds [fd].events)
864	{	1052	{
865	anfds [fd].events = 0;	1053	anfds [fd].events = 0;
866	anfds [fd].emask = 0;	1054	anfds [fd].emask = 0;
867	fd_change (EV_A_ fd, EV__IOFDSET | 1);	1055	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
868	}	1056	}
		1057	}
		1058
		1059	/* used to prepare libev internal fd's */
		1060	/* this is not fork-safe */
		1061	inline_speed void
		1062	fd_intern (int fd)
		1063	{
		1064	#ifdef _WIN32
		1065	unsigned long arg = 1;
		1066	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1067	#else
		1068	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1069	fcntl (fd, F_SETFL, O_NONBLOCK);
		1070	#endif
869	}	1071	}
870		1072
871	/*****************************************************************************/	1073	/*****************************************************************************/
872		1074
873	/*	1075	/*
…		…
947		1149
948	for (;;)	1150	for (;;)
949	{	1151	{
950	int c = k << 1;	1152	int c = k << 1;
951		1153
952	if (c > N + HEAP0 - 1)	1154	if (c >= N + HEAP0)
953	break;	1155	break;
954		1156
955	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1157	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
956	? 1 : 0;	1158	? 1 : 0;
957		1159
…		…
989		1191
990	heap [k] = he;	1192	heap [k] = he;
991	ev_active (ANHE_w (he)) = k;	1193	ev_active (ANHE_w (he)) = k;
992	}	1194	}
993		1195
		1196	/* move an element suitably so it is in a correct place */
994	inline_size void	1197	inline_size void
995	adjustheap (ANHE *heap, int N, int k)	1198	adjustheap (ANHE *heap, int N, int k)
996	{	1199	{
997	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1200	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
998	upheap (heap, k);	1201	upheap (heap, k);
999	else	1202	else
1000	downheap (heap, N, k);	1203	downheap (heap, N, k);
1001	}	1204	}
1002		1205
…		…
1012	upheap (heap, i + HEAP0);	1215	upheap (heap, i + HEAP0);
1013	}	1216	}
1014		1217
1015	/*****************************************************************************/	1218	/*****************************************************************************/
1016		1219
		1220	/* associate signal watchers to a signal signal */
1017	typedef struct	1221	typedef struct
1018	{	1222	{
		1223	EV_ATOMIC_T pending;
		1224	#if EV_MULTIPLICITY
		1225	EV_P;
		1226	#endif
1019	WL head;	1227	WL head;
1020	EV_ATOMIC_T gotsig;
1021	} ANSIG;	1228	} ANSIG;
1022		1229
1023	static ANSIG *signals;	1230	static ANSIG signals [EV_NSIG - 1];
1024	static int signalmax;
1025
1026	static EV_ATOMIC_T gotsig;
1027		1231
1028	/*****************************************************************************/	1232	/*****************************************************************************/
1029		1233
1030	inline_speed void	1234	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1031	fd_intern (int fd)
1032	{
1033	#ifdef _WIN32
1034	unsigned long arg = 1;
1035	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1036	#else
1037	fcntl (fd, F_SETFD, FD_CLOEXEC);
1038	fcntl (fd, F_SETFL, O_NONBLOCK);
1039	#endif
1040	}
1041		1235
1042	static void noinline	1236	static void noinline
1043	evpipe_init (EV_P)	1237	evpipe_init (EV_P)
1044	{	1238	{
1045	if (!ev_is_active (&pipeev))	1239	if (!ev_is_active (&pipe_w))
1046	{	1240	{
1047	#if EV_USE_EVENTFD	1241	# if EV_USE_EVENTFD
		1242	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1243	if (evfd < 0 && errno == EINVAL)
1048	if ((evfd = eventfd (0, 0)) >= 0)	1244	evfd = eventfd (0, 0);
		1245
		1246	if (evfd >= 0)
1049	{	1247	{
1050	evpipe [0] = -1;	1248	evpipe [0] = -1;
1051	fd_intern (evfd);	1249	fd_intern (evfd); /* doing it twice doesn't hurt */
1052	ev_io_set (&pipeev, evfd, EV_READ);	1250	ev_io_set (&pipe_w, evfd, EV_READ);
1053	}	1251	}
1054	else	1252	else
1055	#endif	1253	# endif
1056	{	1254	{
1057	while (pipe (evpipe))	1255	while (pipe (evpipe))
1058	ev_syserr ("(libev) error creating signal/async pipe");	1256	ev_syserr ("(libev) error creating signal/async pipe");
1059		1257
1060	fd_intern (evpipe [0]);	1258	fd_intern (evpipe [0]);
1061	fd_intern (evpipe [1]);	1259	fd_intern (evpipe [1]);
1062	ev_io_set (&pipeev, evpipe [0], EV_READ);	1260	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1063	}	1261	}
1064		1262
1065	ev_io_start (EV_A_ &pipeev);	1263	ev_io_start (EV_A_ &pipe_w);
1066	ev_unref (EV_A); /* watcher should not keep loop alive */	1264	ev_unref (EV_A); /* watcher should not keep loop alive */
1067	}	1265	}
1068	}	1266	}
1069		1267
1070	inline_size void	1268	inline_size void
1071	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1269	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1072	{	1270	{
1073	if (!*flag)	1271	if (!*flag)
1074	{	1272	{
1075	int old_errno = errno; /* save errno because write might clobber it */	1273	int old_errno = errno; /* save errno because write might clobber it */
		1274	char dummy;
1076		1275
1077	*flag = 1;	1276	*flag = 1;
1078		1277
1079	#if EV_USE_EVENTFD	1278	#if EV_USE_EVENTFD
1080	if (evfd >= 0)	1279	if (evfd >= 0)
…		…
1082	uint64_t counter = 1;	1281	uint64_t counter = 1;
1083	write (evfd, &counter, sizeof (uint64_t));	1282	write (evfd, &counter, sizeof (uint64_t));
1084	}	1283	}
1085	else	1284	else
1086	#endif	1285	#endif
1087	write (evpipe [1], &old_errno, 1);	1286	write (evpipe [1], &dummy, 1);
1088		1287
1089	errno = old_errno;	1288	errno = old_errno;
1090	}	1289	}
1091	}	1290	}
1092		1291
		1292	/* called whenever the libev signal pipe */
		1293	/* got some events (signal, async) */
1093	static void	1294	static void
1094	pipecb (EV_P_ ev_io *iow, int revents)	1295	pipecb (EV_P_ ev_io *iow, int revents)
1095	{	1296	{
		1297	int i;
		1298
1096	#if EV_USE_EVENTFD	1299	#if EV_USE_EVENTFD
1097	if (evfd >= 0)	1300	if (evfd >= 0)
1098	{	1301	{
1099	uint64_t counter;	1302	uint64_t counter;
1100	read (evfd, &counter, sizeof (uint64_t));	1303	read (evfd, &counter, sizeof (uint64_t));
…		…
1104	{	1307	{
1105	char dummy;	1308	char dummy;
1106	read (evpipe [0], &dummy, 1);	1309	read (evpipe [0], &dummy, 1);
1107	}	1310	}
1108		1311
1109	if (gotsig && ev_is_default_loop (EV_A))	1312	if (sig_pending)
1110	{	1313	{
1111	int signum;	1314	sig_pending = 0;
1112	gotsig = 0;
1113		1315
1114	for (signum = signalmax; signum--; )	1316	for (i = EV_NSIG - 1; i--; )
1115	if (signals [signum].gotsig)	1317	if (expect_false (signals [i].pending))
1116	ev_feed_signal_event (EV_A_ signum + 1);	1318	ev_feed_signal_event (EV_A_ i + 1);
1117	}	1319	}
1118		1320
1119	#if EV_ASYNC_ENABLE	1321	#if EV_ASYNC_ENABLE
1120	if (gotasync)	1322	if (async_pending)
1121	{	1323	{
1122	int i;	1324	async_pending = 0;
1123	gotasync = 0;
1124		1325
1125	for (i = asynccnt; i--; )	1326	for (i = asynccnt; i--; )
1126	if (asyncs [i]->sent)	1327	if (asyncs [i]->sent)
1127	{	1328	{
1128	asyncs [i]->sent = 0;	1329	asyncs [i]->sent = 0;
…		…
1136		1337
1137	static void	1338	static void
1138	ev_sighandler (int signum)	1339	ev_sighandler (int signum)
1139	{	1340	{
1140	#if EV_MULTIPLICITY	1341	#if EV_MULTIPLICITY
1141	struct ev_loop *loop = &default_loop_struct;	1342	EV_P = signals [signum - 1].loop;
1142	#endif	1343	#endif
1143		1344
1144	#if _WIN32	1345	#ifdef _WIN32
1145	signal (signum, ev_sighandler);	1346	signal (signum, ev_sighandler);
1146	#endif	1347	#endif
1147		1348
1148	signals [signum - 1].gotsig = 1;	1349	signals [signum - 1].pending = 1;
1149	evpipe_write (EV_A_ &gotsig);	1350	evpipe_write (EV_A_ &sig_pending);
1150	}	1351	}
1151		1352
1152	void noinline	1353	void noinline
1153	ev_feed_signal_event (EV_P_ int signum)	1354	ev_feed_signal_event (EV_P_ int signum)
1154	{	1355	{
1155	WL w;	1356	WL w;
1156		1357
		1358	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1359	return;
		1360
		1361	--signum;
		1362
1157	#if EV_MULTIPLICITY	1363	#if EV_MULTIPLICITY
1158	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1364	/* it is permissible to try to feed a signal to the wrong loop */
1159	#endif	1365	/* or, likely more useful, feeding a signal nobody is waiting for */
1160		1366
1161	--signum;	1367	if (expect_false (signals [signum].loop != EV_A))
1162
1163	if (signum < 0 || signum >= signalmax)
1164	return;	1368	return;
		1369	#endif
1165		1370
1166	signals [signum].gotsig = 0;	1371	signals [signum].pending = 0;
1167		1372
1168	for (w = signals [signum].head; w; w = w->next)	1373	for (w = signals [signum].head; w; w = w->next)
1169	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1374	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1170	}	1375	}
1171		1376
		1377	#if EV_USE_SIGNALFD
		1378	static void
		1379	sigfdcb (EV_P_ ev_io *iow, int revents)
		1380	{
		1381	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1382
		1383	for (;;)
		1384	{
		1385	ssize_t res = read (sigfd, si, sizeof (si));
		1386
		1387	/* not ISO-C, as res might be -1, but works with SuS */
		1388	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1389	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1390
		1391	if (res < (ssize_t)sizeof (si))
		1392	break;
		1393	}
		1394	}
		1395	#endif
		1396
		1397	#endif
		1398
1172	/*****************************************************************************/	1399	/*****************************************************************************/
1173		1400
		1401	#if EV_CHILD_ENABLE
1174	static WL childs [EV_PID_HASHSIZE];	1402	static WL childs [EV_PID_HASHSIZE];
1175
1176	#ifndef _WIN32
1177		1403
1178	static ev_signal childev;	1404	static ev_signal childev;
1179		1405
1180	#ifndef WIFCONTINUED	1406	#ifndef WIFCONTINUED
1181	# define WIFCONTINUED(status) 0	1407	# define WIFCONTINUED(status) 0
1182	#endif	1408	#endif
1183		1409
		1410	/* handle a single child status event */
1184	inline_speed void	1411	inline_speed void
1185	child_reap (EV_P_ int chain, int pid, int status)	1412	child_reap (EV_P_ int chain, int pid, int status)
1186	{	1413	{
1187	ev_child *w;	1414	ev_child *w;
1188	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1415	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1189		1416
1190	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1417	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1191	{	1418	{
1192	if ((w->pid == pid || !w->pid)	1419	if ((w->pid == pid || !w->pid)
1193	&& (!traced || (w->flags & 1)))	1420	&& (!traced || (w->flags & 1)))
1194	{	1421	{
1195	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1422	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1202		1429
1203	#ifndef WCONTINUED	1430	#ifndef WCONTINUED
1204	# define WCONTINUED 0	1431	# define WCONTINUED 0
1205	#endif	1432	#endif
1206		1433
		1434	/* called on sigchld etc., calls waitpid */
1207	static void	1435	static void
1208	childcb (EV_P_ ev_signal *sw, int revents)	1436	childcb (EV_P_ ev_signal *sw, int revents)
1209	{	1437	{
1210	int pid, status;	1438	int pid, status;
1211		1439
…		…
1219	/* make sure we are called again until all children have been reaped */	1447	/* make sure we are called again until all children have been reaped */
1220	/* we need to do it this way so that the callback gets called before we continue */	1448	/* we need to do it this way so that the callback gets called before we continue */
1221	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1449	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1222		1450
1223	child_reap (EV_A_ pid, pid, status);	1451	child_reap (EV_A_ pid, pid, status);
1224	if (EV_PID_HASHSIZE > 1)	1452	if ((EV_PID_HASHSIZE) > 1)
1225	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1453	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1226	}	1454	}
1227		1455
1228	#endif	1456	#endif
1229		1457
…		…
1296	#ifdef __APPLE__	1524	#ifdef __APPLE__
1297	/* only select works correctly on that "unix-certified" platform */	1525	/* only select works correctly on that "unix-certified" platform */
1298	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1526	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1299	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1527	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1300	#endif	1528	#endif
		1529	#ifdef __FreeBSD__
		1530	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1531	#endif
1301		1532
1302	return flags;	1533	return flags;
1303	}	1534	}
1304		1535
1305	unsigned int	1536	unsigned int
…		…
1318	ev_backend (EV_P)	1549	ev_backend (EV_P)
1319	{	1550	{
1320	return backend;	1551	return backend;
1321	}	1552	}
1322		1553
		1554	#if EV_FEATURE_API
1323	unsigned int	1555	unsigned int
1324	ev_loop_count (EV_P)	1556	ev_iteration (EV_P)
1325	{	1557	{
1326	return loop_count;	1558	return loop_count;
1327	}	1559	}
1328		1560
		1561	unsigned int
		1562	ev_depth (EV_P)
		1563	{
		1564	return loop_depth;
		1565	}
		1566
1329	void	1567	void
1330	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	1568	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1331	{	1569	{
1332	io_blocktime = interval;	1570	io_blocktime = interval;
1333	}	1571	}
…		…
1336	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	1574	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1337	{	1575	{
1338	timeout_blocktime = interval;	1576	timeout_blocktime = interval;
1339	}	1577	}
1340		1578
		1579	void
		1580	ev_set_userdata (EV_P_ void *data)
		1581	{
		1582	userdata = data;
		1583	}
		1584
		1585	void *
		1586	ev_userdata (EV_P)
		1587	{
		1588	return userdata;
		1589	}
		1590
		1591	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
		1592	{
		1593	invoke_cb = invoke_pending_cb;
		1594	}
		1595
		1596	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
		1597	{
		1598	release_cb = release;
		1599	acquire_cb = acquire;
		1600	}
		1601	#endif
		1602
		1603	/* initialise a loop structure, must be zero-initialised */
1341	static void noinline	1604	static void noinline
1342	loop_init (EV_P_ unsigned int flags)	1605	loop_init (EV_P_ unsigned int flags)
1343	{	1606	{
1344	if (!backend)	1607	if (!backend)
1345	{	1608	{
…		…
1361	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1624	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1362	have_monotonic = 1;	1625	have_monotonic = 1;
1363	}	1626	}
1364	#endif	1627	#endif
1365		1628
		1629	/* pid check not overridable via env */
		1630	#ifndef _WIN32
		1631	if (flags & EVFLAG_FORKCHECK)
		1632	curpid = getpid ();
		1633	#endif
		1634
		1635	if (!(flags & EVFLAG_NOENV)
		1636	&& !enable_secure ()
		1637	&& getenv ("LIBEV_FLAGS"))
		1638	flags = atoi (getenv ("LIBEV_FLAGS"));
		1639
1366	ev_rt_now = ev_time ();	1640	ev_rt_now = ev_time ();
1367	mn_now = get_clock ();	1641	mn_now = get_clock ();
1368	now_floor = mn_now;	1642	now_floor = mn_now;
1369	rtmn_diff = ev_rt_now - mn_now;	1643	rtmn_diff = ev_rt_now - mn_now;
		1644	#if EV_FEATURE_API
		1645	invoke_cb = ev_invoke_pending;
		1646	#endif
1370		1647
1371	io_blocktime = 0.;	1648	io_blocktime = 0.;
1372	timeout_blocktime = 0.;	1649	timeout_blocktime = 0.;
1373	backend = 0;	1650	backend = 0;
1374	backend_fd = -1;	1651	backend_fd = -1;
1375	gotasync = 0;	1652	sig_pending = 0;
		1653	#if EV_ASYNC_ENABLE
		1654	async_pending = 0;
		1655	#endif
1376	#if EV_USE_INOTIFY	1656	#if EV_USE_INOTIFY
1377	fs_fd = -2;	1657	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1378	#endif	1658	#endif
1379		1659	#if EV_USE_SIGNALFD
1380	/* pid check not overridable via env */	1660	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1381	#ifndef _WIN32
1382	if (flags & EVFLAG_FORKCHECK)
1383	curpid = getpid ();
1384	#endif	1661	#endif
1385
1386	if (!(flags & EVFLAG_NOENV)
1387	&& !enable_secure ()
1388	&& getenv ("LIBEV_FLAGS"))
1389	flags = atoi (getenv ("LIBEV_FLAGS"));
1390		1662
1391	if (!(flags & 0x0000ffffU))	1663	if (!(flags & 0x0000ffffU))
1392	flags |= ev_recommended_backends ();	1664	flags |= ev_recommended_backends ();
1393		1665
1394	#if EV_USE_PORT	1666	#if EV_USE_PORT
…		…
1405	#endif	1677	#endif
1406	#if EV_USE_SELECT	1678	#if EV_USE_SELECT
1407	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1679	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1408	#endif	1680	#endif
1409		1681
		1682	ev_prepare_init (&pending_w, pendingcb);
		1683
		1684	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1410	ev_init (&pipeev, pipecb);	1685	ev_init (&pipe_w, pipecb);
1411	ev_set_priority (&pipeev, EV_MAXPRI);	1686	ev_set_priority (&pipe_w, EV_MAXPRI);
		1687	#endif
1412	}	1688	}
1413	}	1689	}
1414		1690
		1691	/* free up a loop structure */
1415	static void noinline	1692	static void noinline
1416	loop_destroy (EV_P)	1693	loop_destroy (EV_P)
1417	{	1694	{
1418	int i;	1695	int i;
1419		1696
1420	if (ev_is_active (&pipeev))	1697	if (ev_is_active (&pipe_w))
1421	{	1698	{
1422	ev_ref (EV_A); /* signal watcher */	1699	/*ev_ref (EV_A);*/
1423	ev_io_stop (EV_A_ &pipeev);	1700	/*ev_io_stop (EV_A_ &pipe_w);*/
1424		1701
1425	#if EV_USE_EVENTFD	1702	#if EV_USE_EVENTFD
1426	if (evfd >= 0)	1703	if (evfd >= 0)
1427	close (evfd);	1704	close (evfd);
1428	#endif	1705	#endif
1429		1706
1430	if (evpipe [0] >= 0)	1707	if (evpipe [0] >= 0)
1431	{	1708	{
1432	close (evpipe [0]);	1709	EV_WIN32_CLOSE_FD (evpipe [0]);
1433	close (evpipe [1]);	1710	EV_WIN32_CLOSE_FD (evpipe [1]);
1434	}	1711	}
1435	}	1712	}
		1713
		1714	#if EV_USE_SIGNALFD
		1715	if (ev_is_active (&sigfd_w))
		1716	close (sigfd);
		1717	#endif
1436		1718
1437	#if EV_USE_INOTIFY	1719	#if EV_USE_INOTIFY
1438	if (fs_fd >= 0)	1720	if (fs_fd >= 0)
1439	close (fs_fd);	1721	close (fs_fd);
1440	#endif	1722	#endif
…		…
1464	#if EV_IDLE_ENABLE	1746	#if EV_IDLE_ENABLE
1465	array_free (idle, [i]);	1747	array_free (idle, [i]);
1466	#endif	1748	#endif
1467	}	1749	}
1468		1750
1469	ev_free (anfds); anfdmax = 0;	1751	ev_free (anfds); anfds = 0; anfdmax = 0;
1470		1752
1471	/* have to use the microsoft-never-gets-it-right macro */	1753	/* have to use the microsoft-never-gets-it-right macro */
1472	array_free (rfeed, EMPTY);	1754	array_free (rfeed, EMPTY);
1473	array_free (fdchange, EMPTY);	1755	array_free (fdchange, EMPTY);
1474	array_free (timer, EMPTY);	1756	array_free (timer, EMPTY);
…		…
1505	#endif	1787	#endif
1506	#if EV_USE_INOTIFY	1788	#if EV_USE_INOTIFY
1507	infy_fork (EV_A);	1789	infy_fork (EV_A);
1508	#endif	1790	#endif
1509		1791
1510	if (ev_is_active (&pipeev))	1792	if (ev_is_active (&pipe_w))
1511	{	1793	{
1512	/* this "locks" the handlers against writing to the pipe */	1794	/* this "locks" the handlers against writing to the pipe */
1513	/* while we modify the fd vars */	1795	/* while we modify the fd vars */
1514	gotsig = 1;	1796	sig_pending = 1;
1515	#if EV_ASYNC_ENABLE	1797	#if EV_ASYNC_ENABLE
1516	gotasync = 1;	1798	async_pending = 1;
1517	#endif	1799	#endif
1518		1800
1519	ev_ref (EV_A);	1801	ev_ref (EV_A);
1520	ev_io_stop (EV_A_ &pipeev);	1802	ev_io_stop (EV_A_ &pipe_w);
1521		1803
1522	#if EV_USE_EVENTFD	1804	#if EV_USE_EVENTFD
1523	if (evfd >= 0)	1805	if (evfd >= 0)
1524	close (evfd);	1806	close (evfd);
1525	#endif	1807	#endif
1526		1808
1527	if (evpipe [0] >= 0)	1809	if (evpipe [0] >= 0)
1528	{	1810	{
1529	close (evpipe [0]);	1811	EV_WIN32_CLOSE_FD (evpipe [0]);
1530	close (evpipe [1]);	1812	EV_WIN32_CLOSE_FD (evpipe [1]);
1531	}	1813	}
1532		1814
		1815	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1533	evpipe_init (EV_A);	1816	evpipe_init (EV_A);
1534	/* now iterate over everything, in case we missed something */	1817	/* now iterate over everything, in case we missed something */
1535	pipecb (EV_A_ &pipeev, EV_READ);	1818	pipecb (EV_A_ &pipe_w, EV_READ);
		1819	#endif
1536	}	1820	}
1537		1821
1538	postfork = 0;	1822	postfork = 0;
1539	}	1823	}
1540		1824
1541	#if EV_MULTIPLICITY	1825	#if EV_MULTIPLICITY
1542		1826
1543	struct ev_loop *	1827	struct ev_loop *
1544	ev_loop_new (unsigned int flags)	1828	ev_loop_new (unsigned int flags)
1545	{	1829	{
1546	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1830	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1547		1831
1548	memset (loop, 0, sizeof (struct ev_loop));	1832	memset (EV_A, 0, sizeof (struct ev_loop));
1549
1550	loop_init (EV_A_ flags);	1833	loop_init (EV_A_ flags);
1551		1834
1552	if (ev_backend (EV_A))	1835	if (ev_backend (EV_A))
1553	return loop;	1836	return EV_A;
1554		1837
1555	return 0;	1838	return 0;
1556	}	1839	}
1557		1840
1558	void	1841	void
…		…
1565	void	1848	void
1566	ev_loop_fork (EV_P)	1849	ev_loop_fork (EV_P)
1567	{	1850	{
1568	postfork = 1; /* must be in line with ev_default_fork */	1851	postfork = 1; /* must be in line with ev_default_fork */
1569	}	1852	}
		1853	#endif /* multiplicity */
1570		1854
1571	#if EV_VERIFY	1855	#if EV_VERIFY
1572	static void noinline	1856	static void noinline
1573	verify_watcher (EV_P_ W w)	1857	verify_watcher (EV_P_ W w)
1574	{	1858	{
…		…
1602	verify_watcher (EV_A_ ws [cnt]);	1886	verify_watcher (EV_A_ ws [cnt]);
1603	}	1887	}
1604	}	1888	}
1605	#endif	1889	#endif
1606		1890
		1891	#if EV_FEATURE_API
1607	void	1892	void
1608	ev_loop_verify (EV_P)	1893	ev_verify (EV_P)
1609	{	1894	{
1610	#if EV_VERIFY	1895	#if EV_VERIFY
1611	int i;	1896	int i;
1612	WL w;	1897	WL w;
1613		1898
…		…
1652	#if EV_ASYNC_ENABLE	1937	#if EV_ASYNC_ENABLE
1653	assert (asyncmax >= asynccnt);	1938	assert (asyncmax >= asynccnt);
1654	array_verify (EV_A_ (W *)asyncs, asynccnt);	1939	array_verify (EV_A_ (W *)asyncs, asynccnt);
1655	#endif	1940	#endif
1656		1941
		1942	#if EV_PREPARE_ENABLE
1657	assert (preparemax >= preparecnt);	1943	assert (preparemax >= preparecnt);
1658	array_verify (EV_A_ (W *)prepares, preparecnt);	1944	array_verify (EV_A_ (W *)prepares, preparecnt);
		1945	#endif
1659		1946
		1947	#if EV_CHECK_ENABLE
1660	assert (checkmax >= checkcnt);	1948	assert (checkmax >= checkcnt);
1661	array_verify (EV_A_ (W *)checks, checkcnt);	1949	array_verify (EV_A_ (W *)checks, checkcnt);
		1950	#endif
1662		1951
1663	# if 0	1952	# if 0
		1953	#if EV_CHILD_ENABLE
1664	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1954	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1665	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	1955	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		1956	#endif
1666	# endif	1957	# endif
1667	#endif	1958	#endif
1668	}	1959	}
1669		1960	#endif
1670	#endif /* multiplicity */
1671		1961
1672	#if EV_MULTIPLICITY	1962	#if EV_MULTIPLICITY
1673	struct ev_loop *	1963	struct ev_loop *
1674	ev_default_loop_init (unsigned int flags)	1964	ev_default_loop_init (unsigned int flags)
1675	#else	1965	#else
…		…
1678	#endif	1968	#endif
1679	{	1969	{
1680	if (!ev_default_loop_ptr)	1970	if (!ev_default_loop_ptr)
1681	{	1971	{
1682	#if EV_MULTIPLICITY	1972	#if EV_MULTIPLICITY
1683	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1973	EV_P = ev_default_loop_ptr = &default_loop_struct;
1684	#else	1974	#else
1685	ev_default_loop_ptr = 1;	1975	ev_default_loop_ptr = 1;
1686	#endif	1976	#endif
1687		1977
1688	loop_init (EV_A_ flags);	1978	loop_init (EV_A_ flags);
1689		1979
1690	if (ev_backend (EV_A))	1980	if (ev_backend (EV_A))
1691	{	1981	{
1692	#ifndef _WIN32	1982	#if EV_CHILD_ENABLE
1693	ev_signal_init (&childev, childcb, SIGCHLD);	1983	ev_signal_init (&childev, childcb, SIGCHLD);
1694	ev_set_priority (&childev, EV_MAXPRI);	1984	ev_set_priority (&childev, EV_MAXPRI);
1695	ev_signal_start (EV_A_ &childev);	1985	ev_signal_start (EV_A_ &childev);
1696	ev_unref (EV_A); /* child watcher should not keep loop alive */	1986	ev_unref (EV_A); /* child watcher should not keep loop alive */
1697	#endif	1987	#endif
…		…
1705		1995
1706	void	1996	void
1707	ev_default_destroy (void)	1997	ev_default_destroy (void)
1708	{	1998	{
1709	#if EV_MULTIPLICITY	1999	#if EV_MULTIPLICITY
1710	struct ev_loop *loop = ev_default_loop_ptr;	2000	EV_P = ev_default_loop_ptr;
1711	#endif	2001	#endif
1712		2002
1713	ev_default_loop_ptr = 0;	2003	ev_default_loop_ptr = 0;
1714		2004
1715	#ifndef _WIN32	2005	#if EV_CHILD_ENABLE
1716	ev_ref (EV_A); /* child watcher */	2006	ev_ref (EV_A); /* child watcher */
1717	ev_signal_stop (EV_A_ &childev);	2007	ev_signal_stop (EV_A_ &childev);
1718	#endif	2008	#endif
1719		2009
1720	loop_destroy (EV_A);	2010	loop_destroy (EV_A);
…		…
1722		2012
1723	void	2013	void
1724	ev_default_fork (void)	2014	ev_default_fork (void)
1725	{	2015	{
1726	#if EV_MULTIPLICITY	2016	#if EV_MULTIPLICITY
1727	struct ev_loop *loop = ev_default_loop_ptr;	2017	EV_P = ev_default_loop_ptr;
1728	#endif	2018	#endif
1729		2019
1730	postfork = 1; /* must be in line with ev_loop_fork */	2020	postfork = 1; /* must be in line with ev_loop_fork */
1731	}	2021	}
1732		2022
…		…
1736	ev_invoke (EV_P_ void *w, int revents)	2026	ev_invoke (EV_P_ void *w, int revents)
1737	{	2027	{
1738	EV_CB_INVOKE ((W)w, revents);	2028	EV_CB_INVOKE ((W)w, revents);
1739	}	2029	}
1740		2030
1741	inline_speed void	2031	unsigned int
1742	call_pending (EV_P)	2032	ev_pending_count (EV_P)
		2033	{
		2034	int pri;
		2035	unsigned int count = 0;
		2036
		2037	for (pri = NUMPRI; pri--; )
		2038	count += pendingcnt [pri];
		2039
		2040	return count;
		2041	}
		2042
		2043	void noinline
		2044	ev_invoke_pending (EV_P)
1743	{	2045	{
1744	int pri;	2046	int pri;
1745		2047
1746	for (pri = NUMPRI; pri--; )	2048	for (pri = NUMPRI; pri--; )
1747	while (pendingcnt [pri])	2049	while (pendingcnt [pri])
1748	{	2050	{
1749	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2051	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1750		2052
1751	if (expect_true (p->w))
1752	{
1753	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/	2053	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
		2054	/* ^ this is no longer true, as pending_w could be here */
1754		2055
1755	p->w->pending = 0;	2056	p->w->pending = 0;
1756	EV_CB_INVOKE (p->w, p->events);	2057	EV_CB_INVOKE (p->w, p->events);
1757	EV_FREQUENT_CHECK;	2058	EV_FREQUENT_CHECK;
1758	}
1759	}	2059	}
1760	}	2060	}
1761		2061
1762	#if EV_IDLE_ENABLE	2062	#if EV_IDLE_ENABLE
		2063	/* make idle watchers pending. this handles the "call-idle */
		2064	/* only when higher priorities are idle" logic */
1763	inline_size void	2065	inline_size void
1764	idle_reify (EV_P)	2066	idle_reify (EV_P)
1765	{	2067	{
1766	if (expect_false (idleall))	2068	if (expect_false (idleall))
1767	{	2069	{
…		…
1780	}	2082	}
1781	}	2083	}
1782	}	2084	}
1783	#endif	2085	#endif
1784		2086
		2087	/* make timers pending */
1785	inline_size void	2088	inline_size void
1786	timers_reify (EV_P)	2089	timers_reify (EV_P)
1787	{	2090	{
1788	EV_FREQUENT_CHECK;	2091	EV_FREQUENT_CHECK;
1789		2092
…		…
1813	EV_FREQUENT_CHECK;	2116	EV_FREQUENT_CHECK;
1814	feed_reverse (EV_A_ (W)w);	2117	feed_reverse (EV_A_ (W)w);
1815	}	2118	}
1816	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2119	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1817		2120
1818	feed_reverse_done (EV_A_ EV_TIMEOUT);	2121	feed_reverse_done (EV_A_ EV_TIMER);
1819	}	2122	}
1820	}	2123	}
1821		2124
1822	#if EV_PERIODIC_ENABLE	2125	#if EV_PERIODIC_ENABLE
		2126	/* make periodics pending */
1823	inline_size void	2127	inline_size void
1824	periodics_reify (EV_P)	2128	periodics_reify (EV_P)
1825	{	2129	{
1826	EV_FREQUENT_CHECK;	2130	EV_FREQUENT_CHECK;
1827		2131
…		…
1874		2178
1875	feed_reverse_done (EV_A_ EV_PERIODIC);	2179	feed_reverse_done (EV_A_ EV_PERIODIC);
1876	}	2180	}
1877	}	2181	}
1878		2182
		2183	/* simply recalculate all periodics */
		2184	/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1879	static void noinline	2185	static void noinline
1880	periodics_reschedule (EV_P)	2186	periodics_reschedule (EV_P)
1881	{	2187	{
1882	int i;	2188	int i;
1883		2189
…		…
1896		2202
1897	reheap (periodics, periodiccnt);	2203	reheap (periodics, periodiccnt);
1898	}	2204	}
1899	#endif	2205	#endif
1900		2206
		2207	/* adjust all timers by a given offset */
1901	static void noinline	2208	static void noinline
1902	timers_reschedule (EV_P_ ev_tstamp adjust)	2209	timers_reschedule (EV_P_ ev_tstamp adjust)
1903	{	2210	{
1904	int i;	2211	int i;
1905		2212
…		…
1909	ANHE_w (*he)->at += adjust;	2216	ANHE_w (*he)->at += adjust;
1910	ANHE_at_cache (*he);	2217	ANHE_at_cache (*he);
1911	}	2218	}
1912	}	2219	}
1913		2220
		2221	/* fetch new monotonic and realtime times from the kernel */
		2222	/* also detect if there was a timejump, and act accordingly */
1914	inline_speed void	2223	inline_speed void
1915	time_update (EV_P_ ev_tstamp max_block)	2224	time_update (EV_P_ ev_tstamp max_block)
1916	{	2225	{
1917	int i;
1918
1919	#if EV_USE_MONOTONIC	2226	#if EV_USE_MONOTONIC
1920	if (expect_true (have_monotonic))	2227	if (expect_true (have_monotonic))
1921	{	2228	{
		2229	int i;
1922	ev_tstamp odiff = rtmn_diff;	2230	ev_tstamp odiff = rtmn_diff;
1923		2231
1924	mn_now = get_clock ();	2232	mn_now = get_clock ();
1925		2233
1926	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	2234	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
…		…
1976		2284
1977	mn_now = ev_rt_now;	2285	mn_now = ev_rt_now;
1978	}	2286	}
1979	}	2287	}
1980		2288
1981	static int loop_done;
1982
1983	void	2289	void
1984	ev_loop (EV_P_ int flags)	2290	ev_loop (EV_P_ int flags)
1985	{	2291	{
		2292	#if EV_FEATURE_API
		2293	++loop_depth;
		2294	#endif
		2295
		2296	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
		2297
1986	loop_done = EVUNLOOP_CANCEL;	2298	loop_done = EVUNLOOP_CANCEL;
1987		2299
1988	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	2300	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1989		2301
1990	do	2302	do
1991	{	2303	{
1992	#if EV_VERIFY >= 2	2304	#if EV_VERIFY >= 2
1993	ev_loop_verify (EV_A);	2305	ev_verify (EV_A);
1994	#endif	2306	#endif
1995		2307
1996	#ifndef _WIN32	2308	#ifndef _WIN32
1997	if (expect_false (curpid)) /* penalise the forking check even more */	2309	if (expect_false (curpid)) /* penalise the forking check even more */
1998	if (expect_false (getpid () != curpid))	2310	if (expect_false (getpid () != curpid))
…		…
2006	/* we might have forked, so queue fork handlers */	2318	/* we might have forked, so queue fork handlers */
2007	if (expect_false (postfork))	2319	if (expect_false (postfork))
2008	if (forkcnt)	2320	if (forkcnt)
2009	{	2321	{
2010	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2322	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2011	call_pending (EV_A);	2323	EV_INVOKE_PENDING;
2012	}	2324	}
2013	#endif	2325	#endif
2014		2326
		2327	#if EV_PREPARE_ENABLE
2015	/* queue prepare watchers (and execute them) */	2328	/* queue prepare watchers (and execute them) */
2016	if (expect_false (preparecnt))	2329	if (expect_false (preparecnt))
2017	{	2330	{
2018	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2331	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2019	call_pending (EV_A);	2332	EV_INVOKE_PENDING;
2020	}	2333	}
		2334	#endif
		2335
		2336	if (expect_false (loop_done))
		2337	break;
2021		2338
2022	/* we might have forked, so reify kernel state if necessary */	2339	/* we might have forked, so reify kernel state if necessary */
2023	if (expect_false (postfork))	2340	if (expect_false (postfork))
2024	loop_fork (EV_A);	2341	loop_fork (EV_A);
2025		2342
…		…
2031	ev_tstamp waittime = 0.;	2348	ev_tstamp waittime = 0.;
2032	ev_tstamp sleeptime = 0.;	2349	ev_tstamp sleeptime = 0.;
2033		2350
2034	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2351	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
2035	{	2352	{
		2353	/* remember old timestamp for io_blocktime calculation */
		2354	ev_tstamp prev_mn_now = mn_now;
		2355
2036	/* update time to cancel out callback processing overhead */	2356	/* update time to cancel out callback processing overhead */
2037	time_update (EV_A_ 1e100);	2357	time_update (EV_A_ 1e100);
2038		2358
2039	waittime = MAX_BLOCKTIME;	2359	waittime = MAX_BLOCKTIME;
2040		2360
…		…
2050	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2370	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2051	if (waittime > to) waittime = to;	2371	if (waittime > to) waittime = to;
2052	}	2372	}
2053	#endif	2373	#endif
2054		2374
		2375	/* don't let timeouts decrease the waittime below timeout_blocktime */
2055	if (expect_false (waittime < timeout_blocktime))	2376	if (expect_false (waittime < timeout_blocktime))
2056	waittime = timeout_blocktime;	2377	waittime = timeout_blocktime;
2057		2378
2058	sleeptime = waittime - backend_fudge;	2379	/* extra check because io_blocktime is commonly 0 */
2059
2060	if (expect_true (sleeptime > io_blocktime))	2380	if (expect_false (io_blocktime))
2061	sleeptime = io_blocktime;
2062
2063	if (sleeptime)
2064	{	2381	{
		2382	sleeptime = io_blocktime - (mn_now - prev_mn_now);
		2383
		2384	if (sleeptime > waittime - backend_fudge)
		2385	sleeptime = waittime - backend_fudge;
		2386
		2387	if (expect_true (sleeptime > 0.))
		2388	{
2065	ev_sleep (sleeptime);	2389	ev_sleep (sleeptime);
2066	waittime -= sleeptime;	2390	waittime -= sleeptime;
		2391	}
2067	}	2392	}
2068	}	2393	}
2069		2394
		2395	#if EV_FEATURE_API
2070	++loop_count;	2396	++loop_count;
		2397	#endif
		2398	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2071	backend_poll (EV_A_ waittime);	2399	backend_poll (EV_A_ waittime);
		2400	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2072		2401
2073	/* update ev_rt_now, do magic */	2402	/* update ev_rt_now, do magic */
2074	time_update (EV_A_ waittime + sleeptime);	2403	time_update (EV_A_ waittime + sleeptime);
2075	}	2404	}
2076		2405
…		…
2083	#if EV_IDLE_ENABLE	2412	#if EV_IDLE_ENABLE
2084	/* queue idle watchers unless other events are pending */	2413	/* queue idle watchers unless other events are pending */
2085	idle_reify (EV_A);	2414	idle_reify (EV_A);
2086	#endif	2415	#endif
2087		2416
		2417	#if EV_CHECK_ENABLE
2088	/* queue check watchers, to be executed first */	2418	/* queue check watchers, to be executed first */
2089	if (expect_false (checkcnt))	2419	if (expect_false (checkcnt))
2090	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2420	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2421	#endif
2091		2422
2092	call_pending (EV_A);	2423	EV_INVOKE_PENDING;
2093	}	2424	}
2094	while (expect_true (	2425	while (expect_true (
2095	activecnt	2426	activecnt
2096	&& !loop_done	2427	&& !loop_done
2097	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2428	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2098	));	2429	));
2099		2430
2100	if (loop_done == EVUNLOOP_ONE)	2431	if (loop_done == EVUNLOOP_ONE)
2101	loop_done = EVUNLOOP_CANCEL;	2432	loop_done = EVUNLOOP_CANCEL;
		2433
		2434	#if EV_FEATURE_API
		2435	--loop_depth;
		2436	#endif
2102	}	2437	}
2103		2438
2104	void	2439	void
2105	ev_unloop (EV_P_ int how)	2440	ev_unloop (EV_P_ int how)
2106	{	2441	{
…		…
2137	ev_tstamp mn_prev = mn_now;	2472	ev_tstamp mn_prev = mn_now;
2138		2473
2139	ev_now_update (EV_A);	2474	ev_now_update (EV_A);
2140	timers_reschedule (EV_A_ mn_now - mn_prev);	2475	timers_reschedule (EV_A_ mn_now - mn_prev);
2141	#if EV_PERIODIC_ENABLE	2476	#if EV_PERIODIC_ENABLE
		2477	/* TODO: really do this? */
2142	periodics_reschedule (EV_A);	2478	periodics_reschedule (EV_A);
2143	#endif	2479	#endif
2144	}	2480	}
2145		2481
2146	/*****************************************************************************/	2482	/*****************************************************************************/
		2483	/* singly-linked list management, used when the expected list length is short */
2147		2484
2148	inline_size void	2485	inline_size void
2149	wlist_add (WL *head, WL elem)	2486	wlist_add (WL *head, WL elem)
2150	{	2487	{
2151	elem->next = *head;	2488	elem->next = *head;
…		…
2155	inline_size void	2492	inline_size void
2156	wlist_del (WL *head, WL elem)	2493	wlist_del (WL *head, WL elem)
2157	{	2494	{
2158	while (*head)	2495	while (*head)
2159	{	2496	{
2160	if (*head == elem)	2497	if (expect_true (*head == elem))
2161	{	2498	{
2162	*head = elem->next;	2499	*head = elem->next;
2163	return;	2500	break;
2164	}	2501	}
2165		2502
2166	head = &(*head)->next;	2503	head = &(*head)->next;
2167	}	2504	}
2168	}	2505	}
2169		2506
		2507	/* internal, faster, version of ev_clear_pending */
2170	inline_speed void	2508	inline_speed void
2171	clear_pending (EV_P_ W w)	2509	clear_pending (EV_P_ W w)
2172	{	2510	{
2173	if (w->pending)	2511	if (w->pending)
2174	{	2512	{
2175	pendings [ABSPRI (w)][w->pending - 1].w = 0;	2513	pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2176	w->pending = 0;	2514	w->pending = 0;
2177	}	2515	}
2178	}	2516	}
2179		2517
2180	int	2518	int
…		…
2184	int pending = w_->pending;	2522	int pending = w_->pending;
2185		2523
2186	if (expect_true (pending))	2524	if (expect_true (pending))
2187	{	2525	{
2188	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	2526	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		2527	p->w = (W)&pending_w;
2189	w_->pending = 0;	2528	w_->pending = 0;
2190	p->w = 0;
2191	return p->events;	2529	return p->events;
2192	}	2530	}
2193	else	2531	else
2194	return 0;	2532	return 0;
2195	}	2533	}
2196		2534
2197	inline_size void	2535	inline_size void
2198	pri_adjust (EV_P_ W w)	2536	pri_adjust (EV_P_ W w)
2199	{	2537	{
2200	int pri = w->priority;	2538	int pri = ev_priority (w);
2201	pri = pri < EV_MINPRI ? EV_MINPRI : pri;	2539	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2202	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;	2540	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2203	w->priority = pri;	2541	ev_set_priority (w, pri);
2204	}	2542	}
2205		2543
2206	inline_speed void	2544	inline_speed void
2207	ev_start (EV_P_ W w, int active)	2545	ev_start (EV_P_ W w, int active)
2208	{	2546	{
…		…
2227		2565
2228	if (expect_false (ev_is_active (w)))	2566	if (expect_false (ev_is_active (w)))
2229	return;	2567	return;
2230		2568
2231	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2569	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2232	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2570	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2233		2571
2234	EV_FREQUENT_CHECK;	2572	EV_FREQUENT_CHECK;
2235		2573
2236	ev_start (EV_A_ (W)w, 1);	2574	ev_start (EV_A_ (W)w, 1);
2237	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2575	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2238	wlist_add (&anfds[fd].head, (WL)w);	2576	wlist_add (&anfds[fd].head, (WL)w);
2239		2577
2240	fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1);	2578	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2241	w->events &= ~EV__IOFDSET;	2579	w->events &= ~EV__IOFDSET;
2242		2580
2243	EV_FREQUENT_CHECK;	2581	EV_FREQUENT_CHECK;
2244	}	2582	}
2245		2583
…		…
2307	timers [active] = timers [timercnt + HEAP0];	2645	timers [active] = timers [timercnt + HEAP0];
2308	adjustheap (timers, timercnt, active);	2646	adjustheap (timers, timercnt, active);
2309	}	2647	}
2310	}	2648	}
2311		2649
2312	EV_FREQUENT_CHECK;
2313
2314	ev_at (w) -= mn_now;	2650	ev_at (w) -= mn_now;
2315		2651
2316	ev_stop (EV_A_ (W)w);	2652	ev_stop (EV_A_ (W)w);
		2653
		2654	EV_FREQUENT_CHECK;
2317	}	2655	}
2318		2656
2319	void noinline	2657	void noinline
2320	ev_timer_again (EV_P_ ev_timer *w)	2658	ev_timer_again (EV_P_ ev_timer *w)
2321	{	2659	{
…		…
2339	}	2677	}
2340		2678
2341	EV_FREQUENT_CHECK;	2679	EV_FREQUENT_CHECK;
2342	}	2680	}
2343		2681
		2682	ev_tstamp
		2683	ev_timer_remaining (EV_P_ ev_timer *w)
		2684	{
		2685	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2686	}
		2687
2344	#if EV_PERIODIC_ENABLE	2688	#if EV_PERIODIC_ENABLE
2345	void noinline	2689	void noinline
2346	ev_periodic_start (EV_P_ ev_periodic *w)	2690	ev_periodic_start (EV_P_ ev_periodic *w)
2347	{	2691	{
2348	if (expect_false (ev_is_active (w)))	2692	if (expect_false (ev_is_active (w)))
…		…
2394	periodics [active] = periodics [periodiccnt + HEAP0];	2738	periodics [active] = periodics [periodiccnt + HEAP0];
2395	adjustheap (periodics, periodiccnt, active);	2739	adjustheap (periodics, periodiccnt, active);
2396	}	2740	}
2397	}	2741	}
2398		2742
2399	EV_FREQUENT_CHECK;
2400
2401	ev_stop (EV_A_ (W)w);	2743	ev_stop (EV_A_ (W)w);
		2744
		2745	EV_FREQUENT_CHECK;
2402	}	2746	}
2403		2747
2404	void noinline	2748	void noinline
2405	ev_periodic_again (EV_P_ ev_periodic *w)	2749	ev_periodic_again (EV_P_ ev_periodic *w)
2406	{	2750	{
…		…
2412		2756
2413	#ifndef SA_RESTART	2757	#ifndef SA_RESTART
2414	# define SA_RESTART 0	2758	# define SA_RESTART 0
2415	#endif	2759	#endif
2416		2760
		2761	#if EV_SIGNAL_ENABLE
		2762
2417	void noinline	2763	void noinline
2418	ev_signal_start (EV_P_ ev_signal *w)	2764	ev_signal_start (EV_P_ ev_signal *w)
2419	{	2765	{
2420	#if EV_MULTIPLICITY
2421	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2422	#endif
2423	if (expect_false (ev_is_active (w)))	2766	if (expect_false (ev_is_active (w)))
2424	return;	2767	return;
2425		2768
2426	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2769	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2427		2770
2428	evpipe_init (EV_A);	2771	#if EV_MULTIPLICITY
		2772	assert (("libev: a signal must not be attached to two different loops",
		2773	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2429		2774
2430	EV_FREQUENT_CHECK;	2775	signals [w->signum - 1].loop = EV_A;
		2776	#endif
2431		2777
		2778	EV_FREQUENT_CHECK;
		2779
		2780	#if EV_USE_SIGNALFD
		2781	if (sigfd == -2)
2432	{	2782	{
2433	#ifndef _WIN32	2783	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2434	sigset_t full, prev;	2784	if (sigfd < 0 && errno == EINVAL)
2435	sigfillset (&full);	2785	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2436	sigprocmask (SIG_SETMASK, &full, &prev);
2437	#endif
2438		2786
2439	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2787	if (sigfd >= 0)
		2788	{
		2789	fd_intern (sigfd); /* doing it twice will not hurt */
2440		2790
2441	#ifndef _WIN32	2791	sigemptyset (&sigfd_set);
2442	sigprocmask (SIG_SETMASK, &prev, 0);	2792
2443	#endif	2793	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2794	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2795	ev_io_start (EV_A_ &sigfd_w);
		2796	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2797	}
2444	}	2798	}
		2799
		2800	if (sigfd >= 0)
		2801	{
		2802	/* TODO: check .head */
		2803	sigaddset (&sigfd_set, w->signum);
		2804	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2805
		2806	signalfd (sigfd, &sigfd_set, 0);
		2807	}
		2808	#endif
2445		2809
2446	ev_start (EV_A_ (W)w, 1);	2810	ev_start (EV_A_ (W)w, 1);
2447	wlist_add (&signals [w->signum - 1].head, (WL)w);	2811	wlist_add (&signals [w->signum - 1].head, (WL)w);
2448		2812
2449	if (!((WL)w)->next)	2813	if (!((WL)w)->next)
		2814	# if EV_USE_SIGNALFD
		2815	if (sigfd < 0) /*TODO*/
		2816	# endif
2450	{	2817	{
2451	#if _WIN32	2818	# ifdef _WIN32
		2819	evpipe_init (EV_A);
		2820
2452	signal (w->signum, ev_sighandler);	2821	signal (w->signum, ev_sighandler);
2453	#else	2822	# else
2454	struct sigaction sa;	2823	struct sigaction sa;
		2824
		2825	evpipe_init (EV_A);
		2826
2455	sa.sa_handler = ev_sighandler;	2827	sa.sa_handler = ev_sighandler;
2456	sigfillset (&sa.sa_mask);	2828	sigfillset (&sa.sa_mask);
2457	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2829	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2458	sigaction (w->signum, &sa, 0);	2830	sigaction (w->signum, &sa, 0);
		2831
		2832	sigemptyset (&sa.sa_mask);
		2833	sigaddset (&sa.sa_mask, w->signum);
		2834	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2459	#endif	2835	#endif
2460	}	2836	}
2461		2837
2462	EV_FREQUENT_CHECK;	2838	EV_FREQUENT_CHECK;
2463	}	2839	}
2464		2840
2465	void noinline	2841	void noinline
…		…
2473		2849
2474	wlist_del (&signals [w->signum - 1].head, (WL)w);	2850	wlist_del (&signals [w->signum - 1].head, (WL)w);
2475	ev_stop (EV_A_ (W)w);	2851	ev_stop (EV_A_ (W)w);
2476		2852
2477	if (!signals [w->signum - 1].head)	2853	if (!signals [w->signum - 1].head)
		2854	{
		2855	#if EV_MULTIPLICITY
		2856	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2857	#endif
		2858	#if EV_USE_SIGNALFD
		2859	if (sigfd >= 0)
		2860	{
		2861	sigset_t ss;
		2862
		2863	sigemptyset (&ss);
		2864	sigaddset (&ss, w->signum);
		2865	sigdelset (&sigfd_set, w->signum);
		2866
		2867	signalfd (sigfd, &sigfd_set, 0);
		2868	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2869	}
		2870	else
		2871	#endif
2478	signal (w->signum, SIG_DFL);	2872	signal (w->signum, SIG_DFL);
		2873	}
2479		2874
2480	EV_FREQUENT_CHECK;	2875	EV_FREQUENT_CHECK;
2481	}	2876	}
		2877
		2878	#endif
		2879
		2880	#if EV_CHILD_ENABLE
2482		2881
2483	void	2882	void
2484	ev_child_start (EV_P_ ev_child *w)	2883	ev_child_start (EV_P_ ev_child *w)
2485	{	2884	{
2486	#if EV_MULTIPLICITY	2885	#if EV_MULTIPLICITY
…		…
2490	return;	2889	return;
2491		2890
2492	EV_FREQUENT_CHECK;	2891	EV_FREQUENT_CHECK;
2493		2892
2494	ev_start (EV_A_ (W)w, 1);	2893	ev_start (EV_A_ (W)w, 1);
2495	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2894	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2496		2895
2497	EV_FREQUENT_CHECK;	2896	EV_FREQUENT_CHECK;
2498	}	2897	}
2499		2898
2500	void	2899	void
…		…
2504	if (expect_false (!ev_is_active (w)))	2903	if (expect_false (!ev_is_active (w)))
2505	return;	2904	return;
2506		2905
2507	EV_FREQUENT_CHECK;	2906	EV_FREQUENT_CHECK;
2508		2907
2509	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2908	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2510	ev_stop (EV_A_ (W)w);	2909	ev_stop (EV_A_ (W)w);
2511		2910
2512	EV_FREQUENT_CHECK;	2911	EV_FREQUENT_CHECK;
2513	}	2912	}
		2913
		2914	#endif
2514		2915
2515	#if EV_STAT_ENABLE	2916	#if EV_STAT_ENABLE
2516		2917
2517	# ifdef _WIN32	2918	# ifdef _WIN32
2518	# undef lstat	2919	# undef lstat
…		…
2524	#define MIN_STAT_INTERVAL 0.1074891	2925	#define MIN_STAT_INTERVAL 0.1074891
2525		2926
2526	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2927	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2527		2928
2528	#if EV_USE_INOTIFY	2929	#if EV_USE_INOTIFY
2529	# define EV_INOTIFY_BUFSIZE 8192	2930
		2931	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2932	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2530		2933
2531	static void noinline	2934	static void noinline
2532	infy_add (EV_P_ ev_stat *w)	2935	infy_add (EV_P_ ev_stat *w)
2533	{	2936	{
2534	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);	2937	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);
2535		2938
2536	if (w->wd < 0)	2939	if (w->wd >= 0)
		2940	{
		2941	struct statfs sfs;
		2942
		2943	/* now local changes will be tracked by inotify, but remote changes won't */
		2944	/* unless the filesystem is known to be local, we therefore still poll */
		2945	/* also do poll on <2.6.25, but with normal frequency */
		2946
		2947	if (!fs_2625)
		2948	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		2949	else if (!statfs (w->path, &sfs)
		2950	&& (sfs.f_type == 0x1373 /* devfs */
		2951	|| sfs.f_type == 0xEF53 /* ext2/3 */
		2952	|| sfs.f_type == 0x3153464a /* jfs */
		2953	|| sfs.f_type == 0x52654973 /* reiser3 */
		2954	|| sfs.f_type == 0x01021994 /* tempfs */
		2955	|| sfs.f_type == 0x58465342 /* xfs */))
		2956	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		2957	else
		2958	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2537	{	2959	}
		2960	else
		2961	{
		2962	/* can't use inotify, continue to stat */
2538	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	2963	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2539	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2540		2964
2541	/* monitor some parent directory for speedup hints */	2965	/* if path is not there, monitor some parent directory for speedup hints */
2542	/* note that exceeding the hardcoded path limit is not a correctness issue, */	2966	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2543	/* but an efficiency issue only */	2967	/* but an efficiency issue only */
2544	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2968	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2545	{	2969	{
2546	char path [4096];	2970	char path [4096];
…		…
2562	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	2986	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2563	}	2987	}
2564	}	2988	}
2565		2989
2566	if (w->wd >= 0)	2990	if (w->wd >= 0)
2567	{
2568	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	2991	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2569		2992
2570	/* now local changes will be tracked by inotify, but remote changes won't */	2993	/* now re-arm timer, if required */
2571	/* unless the filesystem it known to be local, we therefore still poll */	2994	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2572	/* also do poll on <2.6.25, but with normal frequency */
2573	struct statfs sfs;
2574
2575	if (fs_2625 && !statfs (w->path, &sfs))
2576	if (sfs.f_type == 0x1373 /* devfs */
2577	|| sfs.f_type == 0xEF53 /* ext2/3 */
2578	|| sfs.f_type == 0x3153464a /* jfs */
2579	|| sfs.f_type == 0x52654973 /* reiser3 */
2580	|| sfs.f_type == 0x01021994 /* tempfs */
2581	|| sfs.f_type == 0x58465342 /* xfs */)
2582	return;
2583
2584	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2585	ev_timer_again (EV_A_ &w->timer);	2995	ev_timer_again (EV_A_ &w->timer);
2586	}	2996	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2587	}	2997	}
2588		2998
2589	static void noinline	2999	static void noinline
2590	infy_del (EV_P_ ev_stat *w)	3000	infy_del (EV_P_ ev_stat *w)
2591	{	3001	{
…		…
2594		3004
2595	if (wd < 0)	3005	if (wd < 0)
2596	return;	3006	return;
2597		3007
2598	w->wd = -2;	3008	w->wd = -2;
2599	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3009	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2600	wlist_del (&fs_hash [slot].head, (WL)w);	3010	wlist_del (&fs_hash [slot].head, (WL)w);
2601		3011
2602	/* remove this watcher, if others are watching it, they will rearm */	3012	/* remove this watcher, if others are watching it, they will rearm */
2603	inotify_rm_watch (fs_fd, wd);	3013	inotify_rm_watch (fs_fd, wd);
2604	}	3014	}
…		…
2606	static void noinline	3016	static void noinline
2607	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3017	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2608	{	3018	{
2609	if (slot < 0)	3019	if (slot < 0)
2610	/* overflow, need to check for all hash slots */	3020	/* overflow, need to check for all hash slots */
2611	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3021	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2612	infy_wd (EV_A_ slot, wd, ev);	3022	infy_wd (EV_A_ slot, wd, ev);
2613	else	3023	else
2614	{	3024	{
2615	WL w_;	3025	WL w_;
2616		3026
2617	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3027	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2618	{	3028	{
2619	ev_stat *w = (ev_stat *)w_;	3029	ev_stat *w = (ev_stat *)w_;
2620	w_ = w_->next; /* lets us remove this watcher and all before it */	3030	w_ = w_->next; /* lets us remove this watcher and all before it */
2621		3031
2622	if (w->wd == wd || wd == -1)	3032	if (w->wd == wd || wd == -1)
2623	{	3033	{
2624	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3034	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2625	{	3035	{
2626	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3036	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2627	w->wd = -1;	3037	w->wd = -1;
2628	infy_add (EV_A_ w); /* re-add, no matter what */	3038	infy_add (EV_A_ w); /* re-add, no matter what */
2629	}	3039	}
2630		3040
2631	stat_timer_cb (EV_A_ &w->timer, 0);	3041	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2636		3046
2637	static void	3047	static void
2638	infy_cb (EV_P_ ev_io *w, int revents)	3048	infy_cb (EV_P_ ev_io *w, int revents)
2639	{	3049	{
2640	char buf [EV_INOTIFY_BUFSIZE];	3050	char buf [EV_INOTIFY_BUFSIZE];
2641	struct inotify_event *ev = (struct inotify_event *)buf;
2642	int ofs;	3051	int ofs;
2643	int len = read (fs_fd, buf, sizeof (buf));	3052	int len = read (fs_fd, buf, sizeof (buf));
2644		3053
2645	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3054	for (ofs = 0; ofs < len; )
		3055	{
		3056	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2646	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3057	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3058	ofs += sizeof (struct inotify_event) + ev->len;
		3059	}
		3060	}
		3061
		3062	inline_size unsigned int
		3063	ev_linux_version (void)
		3064	{
		3065	struct utsname buf;
		3066	unsigned int v;
		3067	int i;
		3068	char *p = buf.release;
		3069
		3070	if (uname (&buf))
		3071	return 0;
		3072
		3073	for (i = 3+1; --i; )
		3074	{
		3075	unsigned int c = 0;
		3076
		3077	for (;;)
		3078	{
		3079	if (*p >= '0' && *p <= '9')
		3080	c = c * 10 + *p++ - '0';
		3081	else
		3082	{
		3083	p += *p == '.';
		3084	break;
		3085	}
		3086	}
		3087
		3088	v = (v << 8) | c;
		3089	}
		3090
		3091	return v;
2647	}	3092	}
2648		3093
2649	inline_size void	3094	inline_size void
2650	check_2625 (EV_P)	3095	ev_check_2625 (EV_P)
2651	{	3096	{
2652	/* kernels < 2.6.25 are borked	3097	/* kernels < 2.6.25 are borked
2653	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3098	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2654	*/	3099	*/
2655	struct utsname buf;	3100	if (ev_linux_version () < 0x020619)
2656	int major, minor, micro;
2657
2658	if (uname (&buf))
2659	return;	3101	return;
2660		3102
2661	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2662	return;
2663
2664	if (major < 2
2665	|| (major == 2 && minor < 6)
2666	|| (major == 2 && minor == 6 && micro < 25))
2667	return;
2668
2669	fs_2625 = 1;	3103	fs_2625 = 1;
		3104	}
		3105
		3106	inline_size int
		3107	infy_newfd (void)
		3108	{
		3109	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3110	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3111	if (fd >= 0)
		3112	return fd;
		3113	#endif
		3114	return inotify_init ();
2670	}	3115	}
2671		3116
2672	inline_size void	3117	inline_size void
2673	infy_init (EV_P)	3118	infy_init (EV_P)
2674	{	3119	{
2675	if (fs_fd != -2)	3120	if (fs_fd != -2)
2676	return;	3121	return;
2677		3122
2678	fs_fd = -1;	3123	fs_fd = -1;
2679		3124
2680	check_2625 (EV_A);	3125	ev_check_2625 (EV_A);
2681		3126
2682	fs_fd = inotify_init ();	3127	fs_fd = infy_newfd ();
2683		3128
2684	if (fs_fd >= 0)	3129	if (fs_fd >= 0)
2685	{	3130	{
		3131	fd_intern (fs_fd);
2686	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3132	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2687	ev_set_priority (&fs_w, EV_MAXPRI);	3133	ev_set_priority (&fs_w, EV_MAXPRI);
2688	ev_io_start (EV_A_ &fs_w);	3134	ev_io_start (EV_A_ &fs_w);
		3135	ev_unref (EV_A);
2689	}	3136	}
2690	}	3137	}
2691		3138
2692	inline_size void	3139	inline_size void
2693	infy_fork (EV_P)	3140	infy_fork (EV_P)
…		…
2695	int slot;	3142	int slot;
2696		3143
2697	if (fs_fd < 0)	3144	if (fs_fd < 0)
2698	return;	3145	return;
2699		3146
		3147	ev_ref (EV_A);
		3148	ev_io_stop (EV_A_ &fs_w);
2700	close (fs_fd);	3149	close (fs_fd);
2701	fs_fd = inotify_init ();	3150	fs_fd = infy_newfd ();
2702		3151
		3152	if (fs_fd >= 0)
		3153	{
		3154	fd_intern (fs_fd);
		3155	ev_io_set (&fs_w, fs_fd, EV_READ);
		3156	ev_io_start (EV_A_ &fs_w);
		3157	ev_unref (EV_A);
		3158	}
		3159
2703	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3160	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2704	{	3161	{
2705	WL w_ = fs_hash [slot].head;	3162	WL w_ = fs_hash [slot].head;
2706	fs_hash [slot].head = 0;	3163	fs_hash [slot].head = 0;
2707		3164
2708	while (w_)	3165	while (w_)
…		…
2713	w->wd = -1;	3170	w->wd = -1;
2714		3171
2715	if (fs_fd >= 0)	3172	if (fs_fd >= 0)
2716	infy_add (EV_A_ w); /* re-add, no matter what */	3173	infy_add (EV_A_ w); /* re-add, no matter what */
2717	else	3174	else
		3175	{
		3176	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3177	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2718	ev_timer_again (EV_A_ &w->timer);	3178	ev_timer_again (EV_A_ &w->timer);
		3179	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3180	}
2719	}	3181	}
2720	}	3182	}
2721	}	3183	}
2722		3184
2723	#endif	3185	#endif
…		…
2740	static void noinline	3202	static void noinline
2741	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3203	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2742	{	3204	{
2743	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3205	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2744		3206
2745	/* we copy this here each the time so that */	3207	ev_statdata prev = w->attr;
2746	/* prev has the old value when the callback gets invoked */
2747	w->prev = w->attr;
2748	ev_stat_stat (EV_A_ w);	3208	ev_stat_stat (EV_A_ w);
2749		3209
2750	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3210	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2751	if (	3211	if (
2752	w->prev.st_dev != w->attr.st_dev	3212	prev.st_dev != w->attr.st_dev
2753	|| w->prev.st_ino != w->attr.st_ino	3213	|| prev.st_ino != w->attr.st_ino
2754	|| w->prev.st_mode != w->attr.st_mode	3214	|| prev.st_mode != w->attr.st_mode
2755	|| w->prev.st_nlink != w->attr.st_nlink	3215	|| prev.st_nlink != w->attr.st_nlink
2756	|| w->prev.st_uid != w->attr.st_uid	3216	|| prev.st_uid != w->attr.st_uid
2757	|| w->prev.st_gid != w->attr.st_gid	3217	|| prev.st_gid != w->attr.st_gid
2758	|| w->prev.st_rdev != w->attr.st_rdev	3218	|| prev.st_rdev != w->attr.st_rdev
2759	|| w->prev.st_size != w->attr.st_size	3219	|| prev.st_size != w->attr.st_size
2760	|| w->prev.st_atime != w->attr.st_atime	3220	|| prev.st_atime != w->attr.st_atime
2761	|| w->prev.st_mtime != w->attr.st_mtime	3221	|| prev.st_mtime != w->attr.st_mtime
2762	|| w->prev.st_ctime != w->attr.st_ctime	3222	|| prev.st_ctime != w->attr.st_ctime
2763	) {	3223	) {
		3224	/* we only update w->prev on actual differences */
		3225	/* in case we test more often than invoke the callback, */
		3226	/* to ensure that prev is always different to attr */
		3227	w->prev = prev;
		3228
2764	#if EV_USE_INOTIFY	3229	#if EV_USE_INOTIFY
2765	if (fs_fd >= 0)	3230	if (fs_fd >= 0)
2766	{	3231	{
2767	infy_del (EV_A_ w);	3232	infy_del (EV_A_ w);
2768	infy_add (EV_A_ w);	3233	infy_add (EV_A_ w);
…		…
2793		3258
2794	if (fs_fd >= 0)	3259	if (fs_fd >= 0)
2795	infy_add (EV_A_ w);	3260	infy_add (EV_A_ w);
2796	else	3261	else
2797	#endif	3262	#endif
		3263	{
2798	ev_timer_again (EV_A_ &w->timer);	3264	ev_timer_again (EV_A_ &w->timer);
		3265	ev_unref (EV_A);
		3266	}
2799		3267
2800	ev_start (EV_A_ (W)w, 1);	3268	ev_start (EV_A_ (W)w, 1);
2801		3269
2802	EV_FREQUENT_CHECK;	3270	EV_FREQUENT_CHECK;
2803	}	3271	}
…		…
2812	EV_FREQUENT_CHECK;	3280	EV_FREQUENT_CHECK;
2813		3281
2814	#if EV_USE_INOTIFY	3282	#if EV_USE_INOTIFY
2815	infy_del (EV_A_ w);	3283	infy_del (EV_A_ w);
2816	#endif	3284	#endif
		3285
		3286	if (ev_is_active (&w->timer))
		3287	{
		3288	ev_ref (EV_A);
2817	ev_timer_stop (EV_A_ &w->timer);	3289	ev_timer_stop (EV_A_ &w->timer);
		3290	}
2818		3291
2819	ev_stop (EV_A_ (W)w);	3292	ev_stop (EV_A_ (W)w);
2820		3293
2821	EV_FREQUENT_CHECK;	3294	EV_FREQUENT_CHECK;
2822	}	3295	}
…		…
2867		3340
2868	EV_FREQUENT_CHECK;	3341	EV_FREQUENT_CHECK;
2869	}	3342	}
2870	#endif	3343	#endif
2871		3344
		3345	#if EV_PREPARE_ENABLE
2872	void	3346	void
2873	ev_prepare_start (EV_P_ ev_prepare *w)	3347	ev_prepare_start (EV_P_ ev_prepare *w)
2874	{	3348	{
2875	if (expect_false (ev_is_active (w)))	3349	if (expect_false (ev_is_active (w)))
2876	return;	3350	return;
…		…
2902		3376
2903	ev_stop (EV_A_ (W)w);	3377	ev_stop (EV_A_ (W)w);
2904		3378
2905	EV_FREQUENT_CHECK;	3379	EV_FREQUENT_CHECK;
2906	}	3380	}
		3381	#endif
2907		3382
		3383	#if EV_CHECK_ENABLE
2908	void	3384	void
2909	ev_check_start (EV_P_ ev_check *w)	3385	ev_check_start (EV_P_ ev_check *w)
2910	{	3386	{
2911	if (expect_false (ev_is_active (w)))	3387	if (expect_false (ev_is_active (w)))
2912	return;	3388	return;
…		…
2938		3414
2939	ev_stop (EV_A_ (W)w);	3415	ev_stop (EV_A_ (W)w);
2940		3416
2941	EV_FREQUENT_CHECK;	3417	EV_FREQUENT_CHECK;
2942	}	3418	}
		3419	#endif
2943		3420
2944	#if EV_EMBED_ENABLE	3421	#if EV_EMBED_ENABLE
2945	void noinline	3422	void noinline
2946	ev_embed_sweep (EV_P_ ev_embed *w)	3423	ev_embed_sweep (EV_P_ ev_embed *w)
2947	{	3424	{
…		…
2963	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3440	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2964	{	3441	{
2965	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3442	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2966		3443
2967	{	3444	{
2968	struct ev_loop *loop = w->other;	3445	EV_P = w->other;
2969		3446
2970	while (fdchangecnt)	3447	while (fdchangecnt)
2971	{	3448	{
2972	fd_reify (EV_A);	3449	fd_reify (EV_A);
2973	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3450	ev_loop (EV_A_ EVLOOP_NONBLOCK);
…		…
2981	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3458	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2982		3459
2983	ev_embed_stop (EV_A_ w);	3460	ev_embed_stop (EV_A_ w);
2984		3461
2985	{	3462	{
2986	struct ev_loop *loop = w->other;	3463	EV_P = w->other;
2987		3464
2988	ev_loop_fork (EV_A);	3465	ev_loop_fork (EV_A);
2989	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3466	ev_loop (EV_A_ EVLOOP_NONBLOCK);
2990	}	3467	}
2991		3468
…		…
3005	{	3482	{
3006	if (expect_false (ev_is_active (w)))	3483	if (expect_false (ev_is_active (w)))
3007	return;	3484	return;
3008		3485
3009	{	3486	{
3010	struct ev_loop *loop = w->other;	3487	EV_P = w->other;
3011	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3488	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3012	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3489	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3013	}	3490	}
3014		3491
3015	EV_FREQUENT_CHECK;	3492	EV_FREQUENT_CHECK;
…		…
3042		3519
3043	ev_io_stop (EV_A_ &w->io);	3520	ev_io_stop (EV_A_ &w->io);
3044	ev_prepare_stop (EV_A_ &w->prepare);	3521	ev_prepare_stop (EV_A_ &w->prepare);
3045	ev_fork_stop (EV_A_ &w->fork);	3522	ev_fork_stop (EV_A_ &w->fork);
3046		3523
		3524	ev_stop (EV_A_ (W)w);
		3525
3047	EV_FREQUENT_CHECK;	3526	EV_FREQUENT_CHECK;
3048	}	3527	}
3049	#endif	3528	#endif
3050		3529
3051	#if EV_FORK_ENABLE	3530	#if EV_FORK_ENABLE
…		…
3127		3606
3128	void	3607	void
3129	ev_async_send (EV_P_ ev_async *w)	3608	ev_async_send (EV_P_ ev_async *w)
3130	{	3609	{
3131	w->sent = 1;	3610	w->sent = 1;
3132	evpipe_write (EV_A_ &gotasync);	3611	evpipe_write (EV_A_ &async_pending);
3133	}	3612	}
3134	#endif	3613	#endif
3135		3614
3136	/*****************************************************************************/	3615	/*****************************************************************************/
3137		3616
…		…
3177	{	3656	{
3178	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3657	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3179		3658
3180	if (expect_false (!once))	3659	if (expect_false (!once))
3181	{	3660	{
3182	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3661	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3183	return;	3662	return;
3184	}	3663	}
3185		3664
3186	once->cb = cb;	3665	once->cb = cb;
3187	once->arg = arg;	3666	once->arg = arg;
…		…
3201	}	3680	}
3202	}	3681	}
3203		3682
3204	/*****************************************************************************/	3683	/*****************************************************************************/
3205		3684
3206	#if 0	3685	#if EV_WALK_ENABLE
3207	void	3686	void
3208	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	3687	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3209	{	3688	{
3210	int i, j;	3689	int i, j;
3211	ev_watcher_list *wl, *wn;	3690	ev_watcher_list *wl, *wn;
…		…
3227	#if EV_USE_INOTIFY	3706	#if EV_USE_INOTIFY
3228	if (ev_cb ((ev_io *)wl) == infy_cb)	3707	if (ev_cb ((ev_io *)wl) == infy_cb)
3229	;	3708	;
3230	else	3709	else
3231	#endif	3710	#endif
3232	if ((ev_io *)wl != &pipeev)	3711	if ((ev_io *)wl != &pipe_w)
3233	if (types & EV_IO)	3712	if (types & EV_IO)
3234	cb (EV_A_ EV_IO, wl);	3713	cb (EV_A_ EV_IO, wl);
3235		3714
3236	wl = wn;	3715	wl = wn;
3237	}	3716	}
…		…
3274	if (types & EV_ASYNC)	3753	if (types & EV_ASYNC)
3275	for (i = asynccnt; i--; )	3754	for (i = asynccnt; i--; )
3276	cb (EV_A_ EV_ASYNC, asyncs [i]);	3755	cb (EV_A_ EV_ASYNC, asyncs [i]);
3277	#endif	3756	#endif
3278		3757
		3758	#if EV_PREPARE_ENABLE
3279	if (types & EV_PREPARE)	3759	if (types & EV_PREPARE)
3280	for (i = preparecnt; i--; )	3760	for (i = preparecnt; i--; )
3281	#if EV_EMBED_ENABLE	3761	# if EV_EMBED_ENABLE
3282	if (ev_cb (prepares [i]) != embed_prepare_cb)	3762	if (ev_cb (prepares [i]) != embed_prepare_cb)
3283	#endif	3763	# endif
3284	cb (EV_A_ EV_PREPARE, prepares [i]);	3764	cb (EV_A_ EV_PREPARE, prepares [i]);
		3765	#endif
3285		3766
		3767	#if EV_CHECK_ENABLE
3286	if (types & EV_CHECK)	3768	if (types & EV_CHECK)
3287	for (i = checkcnt; i--; )	3769	for (i = checkcnt; i--; )
3288	cb (EV_A_ EV_CHECK, checks [i]);	3770	cb (EV_A_ EV_CHECK, checks [i]);
		3771	#endif
3289		3772
		3773	#if EV_SIGNAL_ENABLE
3290	if (types & EV_SIGNAL)	3774	if (types & EV_SIGNAL)
3291	for (i = 0; i < signalmax; ++i)	3775	for (i = 0; i < EV_NSIG - 1; ++i)
3292	for (wl = signals [i].head; wl; )	3776	for (wl = signals [i].head; wl; )
3293	{	3777	{
3294	wn = wl->next;	3778	wn = wl->next;
3295	cb (EV_A_ EV_SIGNAL, wl);	3779	cb (EV_A_ EV_SIGNAL, wl);
3296	wl = wn;	3780	wl = wn;
3297	}	3781	}
		3782	#endif
3298		3783
		3784	#if EV_CHILD_ENABLE
3299	if (types & EV_CHILD)	3785	if (types & EV_CHILD)
3300	for (i = EV_PID_HASHSIZE; i--; )	3786	for (i = (EV_PID_HASHSIZE); i--; )
3301	for (wl = childs [i]; wl; )	3787	for (wl = childs [i]; wl; )
3302	{	3788	{
3303	wn = wl->next;	3789	wn = wl->next;
3304	cb (EV_A_ EV_CHILD, wl);	3790	cb (EV_A_ EV_CHILD, wl);
3305	wl = wn;	3791	wl = wn;
3306	}	3792	}
		3793	#endif
3307	/* EV_STAT 0x00001000 /* stat data changed */	3794	/* EV_STAT 0x00001000 /* stat data changed */
3308	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3795	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3309	}	3796	}
3310	#endif	3797	#endif
3311		3798

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