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Comparing libev/ev.c (file contents):
Revision 1.298 by root, Fri Jul 10 19:10:19 2009 UTC vs.
Revision 1.367 by root, Tue Jan 11 02:15:58 2011 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) 2007,2008,2009,2010,2011 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	*
…		…
35	* and other provisions required by the GPL. If you do not delete the	35	* and other provisions required by the GPL. If you do not delete the
36	* provisions above, a recipient may use your version of this file under	36	* provisions above, a recipient may use your version of this file under
37	* either the BSD or the GPL.	37	* either the BSD or the GPL.
38	*/	38	*/
39		39
40	#ifdef __cplusplus
41	extern "C" {
42	#endif
43
44	/* this big block deduces configuration from config.h */	40	/* this big block deduces configuration from config.h */
45	#ifndef EV_STANDALONE	41	#ifndef EV_STANDALONE
46	# ifdef EV_CONFIG_H	42	# ifdef EV_CONFIG_H
47	# include EV_CONFIG_H	43	# include EV_CONFIG_H
48	# else	44	# else
…		…
77	# ifndef EV_USE_REALTIME	73	# ifndef EV_USE_REALTIME
78	# define EV_USE_REALTIME 0	74	# define EV_USE_REALTIME 0
79	# endif	75	# endif
80	# endif	76	# endif
81		77
		78	# if HAVE_NANOSLEEP
82	# ifndef EV_USE_NANOSLEEP	79	# ifndef EV_USE_NANOSLEEP
83	# if HAVE_NANOSLEEP
84	# define EV_USE_NANOSLEEP 1	80	# define EV_USE_NANOSLEEP EV_FEATURE_OS
		81	# endif
85	# else	82	# else
		83	# undef EV_USE_NANOSLEEP
86	# define EV_USE_NANOSLEEP 0	84	# define EV_USE_NANOSLEEP 0
		85	# endif
		86
		87	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		88	# ifndef EV_USE_SELECT
		89	# define EV_USE_SELECT EV_FEATURE_BACKENDS
87	# endif	90	# endif
		91	# else
		92	# undef EV_USE_SELECT
		93	# define EV_USE_SELECT 0
88	# endif	94	# endif
89		95
		96	# if HAVE_POLL && HAVE_POLL_H
90	# ifndef EV_USE_SELECT	97	# ifndef EV_USE_POLL
91	# if HAVE_SELECT && HAVE_SYS_SELECT_H	98	# define EV_USE_POLL EV_FEATURE_BACKENDS
92	# define EV_USE_SELECT 1
93	# else
94	# define EV_USE_SELECT 0
95	# endif	99	# endif
96	# endif
97
98	# ifndef EV_USE_POLL
99	# if HAVE_POLL && HAVE_POLL_H
100	# define EV_USE_POLL 1
101	# else	100	# else
		101	# undef EV_USE_POLL
102	# define EV_USE_POLL 0	102	# define EV_USE_POLL 0
103	# endif
104	# endif	103	# endif
105		104
106	# ifndef EV_USE_EPOLL
107	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	105	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108	# define EV_USE_EPOLL 1	106	# ifndef EV_USE_EPOLL
109	# else	107	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110	# define EV_USE_EPOLL 0
111	# endif	108	# endif
		109	# else
		110	# undef EV_USE_EPOLL
		111	# define EV_USE_EPOLL 0
112	# endif	112	# endif
113		113
		114	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114	# ifndef EV_USE_KQUEUE	115	# ifndef EV_USE_KQUEUE
115	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	116	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116	# define EV_USE_KQUEUE 1
117	# else
118	# define EV_USE_KQUEUE 0
119	# endif	117	# endif
		118	# else
		119	# undef EV_USE_KQUEUE
		120	# define EV_USE_KQUEUE 0
120	# endif	121	# endif
121		122
122	# ifndef EV_USE_PORT
123	# if HAVE_PORT_H && HAVE_PORT_CREATE	123	# if HAVE_PORT_H && HAVE_PORT_CREATE
124	# define EV_USE_PORT 1	124	# ifndef EV_USE_PORT
125	# else	125	# define EV_USE_PORT EV_FEATURE_BACKENDS
126	# define EV_USE_PORT 0
127	# endif	126	# endif
		127	# else
		128	# undef EV_USE_PORT
		129	# define EV_USE_PORT 0
128	# endif	130	# endif
129		131
130	# ifndef EV_USE_INOTIFY
131	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H	132	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132	# define EV_USE_INOTIFY 1	133	# ifndef EV_USE_INOTIFY
133	# else
134	# define EV_USE_INOTIFY 0	134	# define EV_USE_INOTIFY EV_FEATURE_OS
135	# endif	135	# endif
		136	# else
		137	# undef EV_USE_INOTIFY
		138	# define EV_USE_INOTIFY 0
136	# endif	139	# endif
137		140
		141	# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138	# ifndef EV_USE_EVENTFD	142	# ifndef EV_USE_SIGNALFD
139	# if HAVE_EVENTFD	143	# define EV_USE_SIGNALFD EV_FEATURE_OS
140	# define EV_USE_EVENTFD 1
141	# else
142	# define EV_USE_EVENTFD 0
143	# endif	144	# endif
		145	# else
		146	# undef EV_USE_SIGNALFD
		147	# define EV_USE_SIGNALFD 0
		148	# endif
		149
		150	# if HAVE_EVENTFD
		151	# ifndef EV_USE_EVENTFD
		152	# define EV_USE_EVENTFD EV_FEATURE_OS
		153	# endif
		154	# else
		155	# undef EV_USE_EVENTFD
		156	# define EV_USE_EVENTFD 0
144	# endif	157	# endif
145		158
146	#endif	159	#endif
147		160
148	#include <math.h>	161	#include <math.h>
149	#include <stdlib.h>	162	#include <stdlib.h>
		163	#include <string.h>
150	#include <fcntl.h>	164	#include <fcntl.h>
151	#include <stddef.h>	165	#include <stddef.h>
152		166
153	#include <stdio.h>	167	#include <stdio.h>
154		168
155	#include <assert.h>	169	#include <assert.h>
156	#include <errno.h>	170	#include <errno.h>
157	#include <sys/types.h>	171	#include <sys/types.h>
158	#include <time.h>	172	#include <time.h>
		173	#include <limits.h>
159		174
160	#include <signal.h>	175	#include <signal.h>
161		176
162	#ifdef EV_H	177	#ifdef EV_H
163	# include EV_H	178	# include EV_H
164	#else	179	#else
165	# include "ev.h"	180	# include "ev.h"
166	#endif	181	#endif
		182
		183	EV_CPP(extern "C" {)
167		184
168	#ifndef _WIN32	185	#ifndef _WIN32
169	# include <sys/time.h>	186	# include <sys/time.h>
170	# include <sys/wait.h>	187	# include <sys/wait.h>
171	# include <unistd.h>	188	# include <unistd.h>
…		…
174	# define WIN32_LEAN_AND_MEAN	191	# define WIN32_LEAN_AND_MEAN
175	# include <windows.h>	192	# include <windows.h>
176	# ifndef EV_SELECT_IS_WINSOCKET	193	# ifndef EV_SELECT_IS_WINSOCKET
177	# define EV_SELECT_IS_WINSOCKET 1	194	# define EV_SELECT_IS_WINSOCKET 1
178	# endif	195	# endif
		196	# undef EV_AVOID_STDIO
179	#endif	197	#endif
		198
		199	/* OS X, in its infinite idiocy, actually HARDCODES
		200	* a limit of 1024 into their select. Where people have brains,
		201	* OS X engineers apparently have a vacuum. Or maybe they were
		202	* ordered to have a vacuum, or they do anything for money.
		203	* This might help. Or not.
		204	*/
		205	#define _DARWIN_UNLIMITED_SELECT 1
180		206
181	/* this block tries to deduce configuration from header-defined symbols and defaults */	207	/* this block tries to deduce configuration from header-defined symbols and defaults */
		208
		209	/* try to deduce the maximum number of signals on this platform */
		210	#if defined (EV_NSIG)
		211	/* use what's provided */
		212	#elif defined (NSIG)
		213	# define EV_NSIG (NSIG)
		214	#elif defined(_NSIG)
		215	# define EV_NSIG (_NSIG)
		216	#elif defined (SIGMAX)
		217	# define EV_NSIG (SIGMAX+1)
		218	#elif defined (SIG_MAX)
		219	# define EV_NSIG (SIG_MAX+1)
		220	#elif defined (_SIG_MAX)
		221	# define EV_NSIG (_SIG_MAX+1)
		222	#elif defined (MAXSIG)
		223	# define EV_NSIG (MAXSIG+1)
		224	#elif defined (MAX_SIG)
		225	# define EV_NSIG (MAX_SIG+1)
		226	#elif defined (SIGARRAYSIZE)
		227	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
		228	#elif defined (_sys_nsig)
		229	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
		230	#else
		231	# error "unable to find value for NSIG, please report"
		232	/* to make it compile regardless, just remove the above line, */
		233	/* but consider reporting it, too! :) */
		234	# define EV_NSIG 65
		235	#endif
182		236
183	#ifndef EV_USE_CLOCK_SYSCALL	237	#ifndef EV_USE_CLOCK_SYSCALL
184	# if __linux && __GLIBC__ >= 2	238	# if __linux && __GLIBC__ >= 2
185	# define EV_USE_CLOCK_SYSCALL 1	239	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186	# else	240	# else
187	# define EV_USE_CLOCK_SYSCALL 0	241	# define EV_USE_CLOCK_SYSCALL 0
188	# endif	242	# endif
189	#endif	243	#endif
190		244
191	#ifndef EV_USE_MONOTONIC	245	#ifndef EV_USE_MONOTONIC
192	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	246	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193	# define EV_USE_MONOTONIC 1	247	# define EV_USE_MONOTONIC EV_FEATURE_OS
194	# else	248	# else
195	# define EV_USE_MONOTONIC 0	249	# define EV_USE_MONOTONIC 0
196	# endif	250	# endif
197	#endif	251	#endif
198		252
…		…
200	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL	254	# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201	#endif	255	#endif
202		256
203	#ifndef EV_USE_NANOSLEEP	257	#ifndef EV_USE_NANOSLEEP
204	# if _POSIX_C_SOURCE >= 199309L	258	# if _POSIX_C_SOURCE >= 199309L
205	# define EV_USE_NANOSLEEP 1	259	# define EV_USE_NANOSLEEP EV_FEATURE_OS
206	# else	260	# else
207	# define EV_USE_NANOSLEEP 0	261	# define EV_USE_NANOSLEEP 0
208	# endif	262	# endif
209	#endif	263	#endif
210		264
211	#ifndef EV_USE_SELECT	265	#ifndef EV_USE_SELECT
212	# define EV_USE_SELECT 1	266	# define EV_USE_SELECT EV_FEATURE_BACKENDS
213	#endif	267	#endif
214		268
215	#ifndef EV_USE_POLL	269	#ifndef EV_USE_POLL
216	# ifdef _WIN32	270	# ifdef _WIN32
217	# define EV_USE_POLL 0	271	# define EV_USE_POLL 0
218	# else	272	# else
219	# define EV_USE_POLL 1	273	# define EV_USE_POLL EV_FEATURE_BACKENDS
220	# endif	274	# endif
221	#endif	275	#endif
222		276
223	#ifndef EV_USE_EPOLL	277	#ifndef EV_USE_EPOLL
224	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	278	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225	# define EV_USE_EPOLL 1	279	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226	# else	280	# else
227	# define EV_USE_EPOLL 0	281	# define EV_USE_EPOLL 0
228	# endif	282	# endif
229	#endif	283	#endif
230		284
…		…
236	# define EV_USE_PORT 0	290	# define EV_USE_PORT 0
237	#endif	291	#endif
238		292
239	#ifndef EV_USE_INOTIFY	293	#ifndef EV_USE_INOTIFY
240	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	294	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241	# define EV_USE_INOTIFY 1	295	# define EV_USE_INOTIFY EV_FEATURE_OS
242	# else	296	# else
243	# define EV_USE_INOTIFY 0	297	# define EV_USE_INOTIFY 0
244	# endif	298	# endif
245	#endif	299	#endif
246		300
247	#ifndef EV_PID_HASHSIZE	301	#ifndef EV_PID_HASHSIZE
248	# if EV_MINIMAL	302	# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249	# define EV_PID_HASHSIZE 1
250	# else
251	# define EV_PID_HASHSIZE 16
252	# endif
253	#endif	303	#endif
254		304
255	#ifndef EV_INOTIFY_HASHSIZE	305	#ifndef EV_INOTIFY_HASHSIZE
256	# if EV_MINIMAL	306	# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257	# define EV_INOTIFY_HASHSIZE 1
258	# else
259	# define EV_INOTIFY_HASHSIZE 16
260	# endif
261	#endif	307	#endif
262		308
263	#ifndef EV_USE_EVENTFD	309	#ifndef EV_USE_EVENTFD
264	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	310	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265	# define EV_USE_EVENTFD 1	311	# define EV_USE_EVENTFD EV_FEATURE_OS
266	# else	312	# else
267	# define EV_USE_EVENTFD 0	313	# define EV_USE_EVENTFD 0
		314	# endif
		315	#endif
		316
		317	#ifndef EV_USE_SIGNALFD
		318	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		319	# define EV_USE_SIGNALFD EV_FEATURE_OS
		320	# else
		321	# define EV_USE_SIGNALFD 0
268	# endif	322	# endif
269	#endif	323	#endif
270		324
271	#if 0 /* debugging */	325	#if 0 /* debugging */
272	# define EV_VERIFY 3	326	# define EV_VERIFY 3
273	# define EV_USE_4HEAP 1	327	# define EV_USE_4HEAP 1
274	# define EV_HEAP_CACHE_AT 1	328	# define EV_HEAP_CACHE_AT 1
275	#endif	329	#endif
276		330
277	#ifndef EV_VERIFY	331	#ifndef EV_VERIFY
278	# define EV_VERIFY !EV_MINIMAL	332	# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279	#endif	333	#endif
280		334
281	#ifndef EV_USE_4HEAP	335	#ifndef EV_USE_4HEAP
282	# define EV_USE_4HEAP !EV_MINIMAL	336	# define EV_USE_4HEAP EV_FEATURE_DATA
283	#endif	337	#endif
284		338
285	#ifndef EV_HEAP_CACHE_AT	339	#ifndef EV_HEAP_CACHE_AT
286	# define EV_HEAP_CACHE_AT !EV_MINIMAL	340	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287	#endif	341	#endif
288		342
289	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	343	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
290	/* which makes programs even slower. might work on other unices, too. */	344	/* which makes programs even slower. might work on other unices, too. */
291	#if EV_USE_CLOCK_SYSCALL	345	#if EV_USE_CLOCK_SYSCALL
…		…
300	# endif	354	# endif
301	#endif	355	#endif
302		356
303	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	357	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304		358
		359	#ifdef _AIX
		360	/* AIX has a completely broken poll.h header */
		361	# undef EV_USE_POLL
		362	# define EV_USE_POLL 0
		363	#endif
		364
305	#ifndef CLOCK_MONOTONIC	365	#ifndef CLOCK_MONOTONIC
306	# undef EV_USE_MONOTONIC	366	# undef EV_USE_MONOTONIC
307	# define EV_USE_MONOTONIC 0	367	# define EV_USE_MONOTONIC 0
308	#endif	368	#endif
309		369
…		…
322	# include <sys/select.h>	382	# include <sys/select.h>
323	# endif	383	# endif
324	#endif	384	#endif
325		385
326	#if EV_USE_INOTIFY	386	#if EV_USE_INOTIFY
327	# include <sys/utsname.h>
328	# include <sys/statfs.h>	387	# include <sys/statfs.h>
329	# include <sys/inotify.h>	388	# include <sys/inotify.h>
330	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	389	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
331	# ifndef IN_DONT_FOLLOW	390	# ifndef IN_DONT_FOLLOW
332	# undef EV_USE_INOTIFY	391	# undef EV_USE_INOTIFY
…		…
339	#endif	398	#endif
340		399
341	#if EV_USE_EVENTFD	400	#if EV_USE_EVENTFD
342	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	401	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343	# include <stdint.h>	402	# include <stdint.h>
344	# ifdef __cplusplus	403	# ifndef EFD_NONBLOCK
345	extern "C" {	404	# define EFD_NONBLOCK O_NONBLOCK
346	# endif	405	# endif
347	int eventfd (unsigned int initval, int flags);	406	# ifndef EFD_CLOEXEC
348	# ifdef __cplusplus	407	# ifdef O_CLOEXEC
349	}	408	# define EFD_CLOEXEC O_CLOEXEC
		409	# else
		410	# define EFD_CLOEXEC 02000000
		411	# endif
350	# endif	412	# endif
		413	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
		414	#endif
		415
		416	#if EV_USE_SIGNALFD
		417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		418	# include <stdint.h>
		419	# ifndef SFD_NONBLOCK
		420	# define SFD_NONBLOCK O_NONBLOCK
		421	# endif
		422	# ifndef SFD_CLOEXEC
		423	# ifdef O_CLOEXEC
		424	# define SFD_CLOEXEC O_CLOEXEC
		425	# else
		426	# define SFD_CLOEXEC 02000000
		427	# endif
		428	# endif
		429	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
		430
		431	struct signalfd_siginfo
		432	{
		433	uint32_t ssi_signo;
		434	char pad[128 - sizeof (uint32_t)];
		435	};
351	#endif	436	#endif
352		437
353	/**/	438	/**/
354		439
355	#if EV_VERIFY >= 3	440	#if EV_VERIFY >= 3
356	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)	441	# define EV_FREQUENT_CHECK ev_verify (EV_A)
357	#else	442	#else
358	# define EV_FREQUENT_CHECK do { } while (0)	443	# define EV_FREQUENT_CHECK do { } while (0)
359	#endif	444	#endif
360		445
361	/*	446	/*
…		…
368	*/	453	*/
369	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	454	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
370		455
371	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	456	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
372	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	457	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
373	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */	458
		459	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
		460	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
374		461
375	#if __GNUC__ >= 4	462	#if __GNUC__ >= 4
376	# define expect(expr,value) __builtin_expect ((expr),(value))	463	# define expect(expr,value) __builtin_expect ((expr),(value))
377	# define noinline __attribute__ ((noinline))	464	# define noinline __attribute__ ((noinline))
378	#else	465	#else
…		…
385		472
386	#define expect_false(expr) expect ((expr) != 0, 0)	473	#define expect_false(expr) expect ((expr) != 0, 0)
387	#define expect_true(expr) expect ((expr) != 0, 1)	474	#define expect_true(expr) expect ((expr) != 0, 1)
388	#define inline_size static inline	475	#define inline_size static inline
389		476
390	#if EV_MINIMAL	477	#if EV_FEATURE_CODE
		478	# define inline_speed static inline
		479	#else
391	# define inline_speed static noinline	480	# define inline_speed static noinline
392	#else
393	# define inline_speed static inline
394	#endif	481	#endif
395		482
396	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	483	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397		484
398	#if EV_MINPRI == EV_MAXPRI	485	#if EV_MINPRI == EV_MAXPRI
…		…
411	#define ev_active(w) ((W)(w))->active	498	#define ev_active(w) ((W)(w))->active
412	#define ev_at(w) ((WT)(w))->at	499	#define ev_at(w) ((WT)(w))->at
413		500
414	#if EV_USE_REALTIME	501	#if EV_USE_REALTIME
415	/* sig_atomic_t is used to avoid per-thread variables or locking but still */	502	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
416	/* giving it a reasonably high chance of working on typical architetcures */	503	/* giving it a reasonably high chance of working on typical architectures */
417	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */	504	static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
418	#endif	505	#endif
419		506
420	#if EV_USE_MONOTONIC	507	#if EV_USE_MONOTONIC
421	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	508	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
422	#endif	509	#endif
423		510
		511	#ifndef EV_FD_TO_WIN32_HANDLE
		512	# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		513	#endif
		514	#ifndef EV_WIN32_HANDLE_TO_FD
		515	# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		516	#endif
		517	#ifndef EV_WIN32_CLOSE_FD
		518	# define EV_WIN32_CLOSE_FD(fd) close (fd)
		519	#endif
		520
424	#ifdef _WIN32	521	#ifdef _WIN32
425	# include "ev_win32.c"	522	# include "ev_win32.c"
426	#endif	523	#endif
427		524
428	/*****************************************************************************/	525	/*****************************************************************************/
		526
		527	#ifdef __linux
		528	# include <sys/utsname.h>
		529	#endif
		530
		531	static unsigned int noinline
		532	ev_linux_version (void)
		533	{
		534	#ifdef __linux
		535	unsigned int v = 0;
		536	struct utsname buf;
		537	int i;
		538	char *p = buf.release;
		539
		540	if (uname (&buf))
		541	return 0;
		542
		543	for (i = 3+1; --i; )
		544	{
		545	unsigned int c = 0;
		546
		547	for (;;)
		548	{
		549	if (*p >= '0' && *p <= '9')
		550	c = c * 10 + *p++ - '0';
		551	else
		552	{
		553	p += *p == '.';
		554	break;
		555	}
		556	}
		557
		558	v = (v << 8) | c;
		559	}
		560
		561	return v;
		562	#else
		563	return 0;
		564	#endif
		565	}
		566
		567	/*****************************************************************************/
		568
		569	#if EV_AVOID_STDIO
		570	static void noinline
		571	ev_printerr (const char *msg)
		572	{
		573	write (STDERR_FILENO, msg, strlen (msg));
		574	}
		575	#endif
429		576
430	static void (*syserr_cb)(const char *msg);	577	static void (*syserr_cb)(const char *msg);
431		578
432	void	579	void
433	ev_set_syserr_cb (void (*cb)(const char *msg))	580	ev_set_syserr_cb (void (*cb)(const char *msg))
…		…
443		590
444	if (syserr_cb)	591	if (syserr_cb)
445	syserr_cb (msg);	592	syserr_cb (msg);
446	else	593	else
447	{	594	{
		595	#if EV_AVOID_STDIO
		596	ev_printerr (msg);
		597	ev_printerr (": ");
		598	ev_printerr (strerror (errno));
		599	ev_printerr ("\n");
		600	#else
448	perror (msg);	601	perror (msg);
		602	#endif
449	abort ();	603	abort ();
450	}	604	}
451	}	605	}
452		606
453	static void *	607	static void *
454	ev_realloc_emul (void *ptr, long size)	608	ev_realloc_emul (void *ptr, long size)
455	{	609	{
		610	#if __GLIBC__
		611	return realloc (ptr, size);
		612	#else
456	/* some systems, notably openbsd and darwin, fail to properly	613	/* some systems, notably openbsd and darwin, fail to properly
457	* implement realloc (x, 0) (as required by both ansi c-98 and	614	* implement realloc (x, 0) (as required by both ansi c-89 and
458	* the single unix specification, so work around them here.	615	* the single unix specification, so work around them here.
459	*/	616	*/
460		617
461	if (size)	618	if (size)
462	return realloc (ptr, size);	619	return realloc (ptr, size);
463		620
464	free (ptr);	621	free (ptr);
465	return 0;	622	return 0;
		623	#endif
466	}	624	}
467		625
468	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	626	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
469		627
470	void	628	void
…		…
478	{	636	{
479	ptr = alloc (ptr, size);	637	ptr = alloc (ptr, size);
480		638
481	if (!ptr && size)	639	if (!ptr && size)
482	{	640	{
		641	#if EV_AVOID_STDIO
		642	ev_printerr ("(libev) memory allocation failed, aborting.\n");
		643	#else
483	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	644	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
		645	#endif
484	abort ();	646	abort ();
485	}	647	}
486		648
487	return ptr;	649	return ptr;
488	}	650	}
…		…
504	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	666	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
505	unsigned char unused;	667	unsigned char unused;
506	#if EV_USE_EPOLL	668	#if EV_USE_EPOLL
507	unsigned int egen; /* generation counter to counter epoll bugs */	669	unsigned int egen; /* generation counter to counter epoll bugs */
508	#endif	670	#endif
509	#if EV_SELECT_IS_WINSOCKET	671	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
510	SOCKET handle;	672	SOCKET handle;
		673	#endif
		674	#if EV_USE_IOCP
		675	OVERLAPPED or, ow;
511	#endif	676	#endif
512	} ANFD;	677	} ANFD;
513		678
514	/* stores the pending event set for a given watcher */	679	/* stores the pending event set for a given watcher */
515	typedef struct	680	typedef struct
…		…
570		735
571	static int ev_default_loop_ptr;	736	static int ev_default_loop_ptr;
572		737
573	#endif	738	#endif
574		739
575	#if EV_MINIMAL < 2	740	#if EV_FEATURE_API
576	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	741	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
577	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	742	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
578	# define EV_INVOKE_PENDING invoke_cb (EV_A)	743	# define EV_INVOKE_PENDING invoke_cb (EV_A)
579	#else	744	#else
580	# define EV_RELEASE_CB (void)0	745	# define EV_RELEASE_CB (void)0
581	# define EV_ACQUIRE_CB (void)0	746	# define EV_ACQUIRE_CB (void)0
582	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	747	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
583	#endif	748	#endif
584		749
585	#define EVUNLOOP_RECURSE 0x80	750	#define EVBREAK_RECURSE 0x80
586		751
587	/*****************************************************************************/	752	/*****************************************************************************/
588		753
589	#ifndef EV_HAVE_EV_TIME	754	#ifndef EV_HAVE_EV_TIME
590	ev_tstamp	755	ev_tstamp
…		…
634	if (delay > 0.)	799	if (delay > 0.)
635	{	800	{
636	#if EV_USE_NANOSLEEP	801	#if EV_USE_NANOSLEEP
637	struct timespec ts;	802	struct timespec ts;
638		803
639	ts.tv_sec = (time_t)delay;	804	EV_TS_SET (ts, delay);
640	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
641
642	nanosleep (&ts, 0);	805	nanosleep (&ts, 0);
643	#elif defined(_WIN32)	806	#elif defined(_WIN32)
644	Sleep ((unsigned long)(delay * 1e3));	807	Sleep ((unsigned long)(delay * 1e3));
645	#else	808	#else
646	struct timeval tv;	809	struct timeval tv;
647		810
648	tv.tv_sec = (time_t)delay;
649	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
650
651	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	811	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
652	/* somehting not guaranteed by newer posix versions, but guaranteed */	812	/* something not guaranteed by newer posix versions, but guaranteed */
653	/* by older ones */	813	/* by older ones */
		814	EV_TV_SET (tv, delay);
654	select (0, 0, 0, 0, &tv);	815	select (0, 0, 0, 0, &tv);
655	#endif	816	#endif
656	}	817	}
657	}	818	}
658		819
659	/*****************************************************************************/	820	/*****************************************************************************/
660		821
661	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	822	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
662		823
663	/* find a suitable new size for the given array, */	824	/* find a suitable new size for the given array, */
664	/* hopefully by rounding to a ncie-to-malloc size */	825	/* hopefully by rounding to a nice-to-malloc size */
665	inline_size int	826	inline_size int
666	array_nextsize (int elem, int cur, int cnt)	827	array_nextsize (int elem, int cur, int cnt)
667	{	828	{
668	int ncur = cur + 1;	829	int ncur = cur + 1;
669		830
…		…
765	}	926	}
766		927
767	/*****************************************************************************/	928	/*****************************************************************************/
768		929
769	inline_speed void	930	inline_speed void
770	fd_event_nc (EV_P_ int fd, int revents)	931	fd_event_nocheck (EV_P_ int fd, int revents)
771	{	932	{
772	ANFD *anfd = anfds + fd;	933	ANFD *anfd = anfds + fd;
773	ev_io *w;	934	ev_io *w;
774		935
775	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	936	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
787	fd_event (EV_P_ int fd, int revents)	948	fd_event (EV_P_ int fd, int revents)
788	{	949	{
789	ANFD *anfd = anfds + fd;	950	ANFD *anfd = anfds + fd;
790		951
791	if (expect_true (!anfd->reify))	952	if (expect_true (!anfd->reify))
792	fd_event_nc (EV_A_ fd, revents);	953	fd_event_nocheck (EV_A_ fd, revents);
793	}	954	}
794		955
795	void	956	void
796	ev_feed_fd_event (EV_P_ int fd, int revents)	957	ev_feed_fd_event (EV_P_ int fd, int revents)
797	{	958	{
798	if (fd >= 0 && fd < anfdmax)	959	if (fd >= 0 && fd < anfdmax)
799	fd_event_nc (EV_A_ fd, revents);	960	fd_event_nocheck (EV_A_ fd, revents);
800	}	961	}
801		962
802	/* make sure the external fd watch events are in-sync */	963	/* make sure the external fd watch events are in-sync */
803	/* with the kernel/libev internal state */	964	/* with the kernel/libev internal state */
804	inline_size void	965	inline_size void
…		…
810	{	971	{
811	int fd = fdchanges [i];	972	int fd = fdchanges [i];
812	ANFD *anfd = anfds + fd;	973	ANFD *anfd = anfds + fd;
813	ev_io *w;	974	ev_io *w;
814		975
815	unsigned char events = 0;	976	unsigned char o_events = anfd->events;
		977	unsigned char o_reify = anfd->reify;
816		978
817	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	979	anfd->reify = 0;
818	events |= (unsigned char)w->events;
819		980
820	#if EV_SELECT_IS_WINSOCKET	981	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
821	if (events)	982	if (o_reify & EV__IOFDSET)
822	{	983	{
823	unsigned long arg;	984	unsigned long arg;
824	#ifdef EV_FD_TO_WIN32_HANDLE
825	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	985	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
826	#else
827	anfd->handle = _get_osfhandle (fd);
828	#endif
829	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	986	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
		987	printf ("oi %d %x\n", fd, anfd->handle);//D
830	}	988	}
831	#endif	989	#endif
832		990
		991	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
833	{	992	{
834	unsigned char o_events = anfd->events;
835	unsigned char o_reify = anfd->reify;
836
837	anfd->reify = 0;
838	anfd->events = events;	993	anfd->events = 0;
839		994
840	if (o_events != events || o_reify & EV__IOFDSET)	995	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		996	anfd->events |= (unsigned char)w->events;
		997
		998	if (o_events != anfd->events)
		999	o_reify = EV__IOFDSET; /* actually |= */
		1000	}
		1001
		1002	if (o_reify & EV__IOFDSET)
841	backend_modify (EV_A_ fd, o_events, events);	1003	backend_modify (EV_A_ fd, o_events, anfd->events);
842	}
843	}	1004	}
844		1005
845	fdchangecnt = 0;	1006	fdchangecnt = 0;
846	}	1007	}
847		1008
…		…
871	ev_io_stop (EV_A_ w);	1032	ev_io_stop (EV_A_ w);
872	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1033	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
873	}	1034	}
874	}	1035	}
875		1036
876	/* check whether the given fd is atcually valid, for error recovery */	1037	/* check whether the given fd is actually valid, for error recovery */
877	inline_size int	1038	inline_size int
878	fd_valid (int fd)	1039	fd_valid (int fd)
879	{	1040	{
880	#ifdef _WIN32	1041	#ifdef _WIN32
881	return _get_osfhandle (fd) != -1;	1042	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
882	#else	1043	#else
883	return fcntl (fd, F_GETFD) != -1;	1044	return fcntl (fd, F_GETFD) != -1;
884	#endif	1045	#endif
885	}	1046	}
886		1047
…		…
904		1065
905	for (fd = anfdmax; fd--; )	1066	for (fd = anfdmax; fd--; )
906	if (anfds [fd].events)	1067	if (anfds [fd].events)
907	{	1068	{
908	fd_kill (EV_A_ fd);	1069	fd_kill (EV_A_ fd);
909	return;	1070	break;
910	}	1071	}
911	}	1072	}
912		1073
913	/* usually called after fork if backend needs to re-arm all fds from scratch */	1074	/* usually called after fork if backend needs to re-arm all fds from scratch */
914	static void noinline	1075	static void noinline
…		…
923	anfds [fd].emask = 0;	1084	anfds [fd].emask = 0;
924	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);	1085	fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
925	}	1086	}
926	}	1087	}
927		1088
		1089	/* used to prepare libev internal fd's */
		1090	/* this is not fork-safe */
		1091	inline_speed void
		1092	fd_intern (int fd)
		1093	{
		1094	#ifdef _WIN32
		1095	unsigned long arg = 1;
		1096	ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
		1097	#else
		1098	fcntl (fd, F_SETFD, FD_CLOEXEC);
		1099	fcntl (fd, F_SETFL, O_NONBLOCK);
		1100	#endif
		1101	}
		1102
928	/*****************************************************************************/	1103	/*****************************************************************************/
929		1104
930	/*	1105	/*
931	* the heap functions want a real array index. array index 0 uis guaranteed to not	1106	* the heap functions want a real array index. array index 0 is guaranteed to not
932	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives	1107	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
933	* the branching factor of the d-tree.	1108	* the branching factor of the d-tree.
934	*/	1109	*/
935		1110
936	/*	1111	/*
…		…
1004		1179
1005	for (;;)	1180	for (;;)
1006	{	1181	{
1007	int c = k << 1;	1182	int c = k << 1;
1008		1183
1009	if (c > N + HEAP0 - 1)	1184	if (c >= N + HEAP0)
1010	break;	1185	break;
1011		1186
1012	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])	1187	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
1013	? 1 : 0;	1188	? 1 : 0;
1014		1189
…		…
1050		1225
1051	/* move an element suitably so it is in a correct place */	1226	/* move an element suitably so it is in a correct place */
1052	inline_size void	1227	inline_size void
1053	adjustheap (ANHE *heap, int N, int k)	1228	adjustheap (ANHE *heap, int N, int k)
1054	{	1229	{
1055	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))	1230	if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1056	upheap (heap, k);	1231	upheap (heap, k);
1057	else	1232	else
1058	downheap (heap, N, k);	1233	downheap (heap, N, k);
1059	}	1234	}
1060		1235
…		…
1073	/*****************************************************************************/	1248	/*****************************************************************************/
1074		1249
1075	/* associate signal watchers to a signal signal */	1250	/* associate signal watchers to a signal signal */
1076	typedef struct	1251	typedef struct
1077	{	1252	{
		1253	EV_ATOMIC_T pending;
		1254	#if EV_MULTIPLICITY
		1255	EV_P;
		1256	#endif
1078	WL head;	1257	WL head;
1079	EV_ATOMIC_T gotsig;
1080	} ANSIG;	1258	} ANSIG;
1081		1259
1082	static ANSIG *signals;	1260	static ANSIG signals [EV_NSIG - 1];
1083	static int signalmax;
1084
1085	static EV_ATOMIC_T gotsig;
1086		1261
1087	/*****************************************************************************/	1262	/*****************************************************************************/
1088		1263
1089	/* used to prepare libev internal fd's */	1264	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1090	/* this is not fork-safe */
1091	inline_speed void
1092	fd_intern (int fd)
1093	{
1094	#ifdef _WIN32
1095	unsigned long arg = 1;
1096	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1097	#else
1098	fcntl (fd, F_SETFD, FD_CLOEXEC);
1099	fcntl (fd, F_SETFL, O_NONBLOCK);
1100	#endif
1101	}
1102		1265
1103	static void noinline	1266	static void noinline
1104	evpipe_init (EV_P)	1267	evpipe_init (EV_P)
1105	{	1268	{
1106	if (!ev_is_active (&pipe_w))	1269	if (!ev_is_active (&pipe_w))
1107	{	1270	{
1108	#if EV_USE_EVENTFD	1271	# if EV_USE_EVENTFD
		1272	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
		1273	if (evfd < 0 && errno == EINVAL)
1109	if ((evfd = eventfd (0, 0)) >= 0)	1274	evfd = eventfd (0, 0);
		1275
		1276	if (evfd >= 0)
1110	{	1277	{
1111	evpipe [0] = -1;	1278	evpipe [0] = -1;
1112	fd_intern (evfd);	1279	fd_intern (evfd); /* doing it twice doesn't hurt */
1113	ev_io_set (&pipe_w, evfd, EV_READ);	1280	ev_io_set (&pipe_w, evfd, EV_READ);
1114	}	1281	}
1115	else	1282	else
1116	#endif	1283	# endif
1117	{	1284	{
1118	while (pipe (evpipe))	1285	while (pipe (evpipe))
1119	ev_syserr ("(libev) error creating signal/async pipe");	1286	ev_syserr ("(libev) error creating signal/async pipe");
1120		1287
1121	fd_intern (evpipe [0]);	1288	fd_intern (evpipe [0]);
…		…
1132	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1299	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1133	{	1300	{
1134	if (!*flag)	1301	if (!*flag)
1135	{	1302	{
1136	int old_errno = errno; /* save errno because write might clobber it */	1303	int old_errno = errno; /* save errno because write might clobber it */
		1304	char dummy;
1137		1305
1138	*flag = 1;	1306	*flag = 1;
1139		1307
1140	#if EV_USE_EVENTFD	1308	#if EV_USE_EVENTFD
1141	if (evfd >= 0)	1309	if (evfd >= 0)
…		…
1143	uint64_t counter = 1;	1311	uint64_t counter = 1;
1144	write (evfd, &counter, sizeof (uint64_t));	1312	write (evfd, &counter, sizeof (uint64_t));
1145	}	1313	}
1146	else	1314	else
1147	#endif	1315	#endif
		1316	/* win32 people keep sending patches that change this write() to send() */
		1317	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1318	/* so when you think this write should be a send instead, please find out */
		1319	/* where your send() is from - it's definitely not the microsoft send, and */
		1320	/* tell me. thank you. */
1148	write (evpipe [1], &old_errno, 1);	1321	write (evpipe [1], &dummy, 1);
1149		1322
1150	errno = old_errno;	1323	errno = old_errno;
1151	}	1324	}
1152	}	1325	}
1153		1326
1154	/* called whenever the libev signal pipe */	1327	/* called whenever the libev signal pipe */
1155	/* got some events (signal, async) */	1328	/* got some events (signal, async) */
1156	static void	1329	static void
1157	pipecb (EV_P_ ev_io *iow, int revents)	1330	pipecb (EV_P_ ev_io *iow, int revents)
1158	{	1331	{
		1332	int i;
		1333
1159	#if EV_USE_EVENTFD	1334	#if EV_USE_EVENTFD
1160	if (evfd >= 0)	1335	if (evfd >= 0)
1161	{	1336	{
1162	uint64_t counter;	1337	uint64_t counter;
1163	read (evfd, &counter, sizeof (uint64_t));	1338	read (evfd, &counter, sizeof (uint64_t));
1164	}	1339	}
1165	else	1340	else
1166	#endif	1341	#endif
1167	{	1342	{
1168	char dummy;	1343	char dummy;
		1344	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1169	read (evpipe [0], &dummy, 1);	1345	read (evpipe [0], &dummy, 1);
1170	}	1346	}
1171		1347
1172	if (gotsig && ev_is_default_loop (EV_A))	1348	if (sig_pending)
1173	{	1349	{
1174	int signum;	1350	sig_pending = 0;
1175	gotsig = 0;
1176		1351
1177	for (signum = signalmax; signum--; )	1352	for (i = EV_NSIG - 1; i--; )
1178	if (signals [signum].gotsig)	1353	if (expect_false (signals [i].pending))
1179	ev_feed_signal_event (EV_A_ signum + 1);	1354	ev_feed_signal_event (EV_A_ i + 1);
1180	}	1355	}
1181		1356
1182	#if EV_ASYNC_ENABLE	1357	#if EV_ASYNC_ENABLE
1183	if (gotasync)	1358	if (async_pending)
1184	{	1359	{
1185	int i;	1360	async_pending = 0;
1186	gotasync = 0;
1187		1361
1188	for (i = asynccnt; i--; )	1362	for (i = asynccnt; i--; )
1189	if (asyncs [i]->sent)	1363	if (asyncs [i]->sent)
1190	{	1364	{
1191	asyncs [i]->sent = 0;	1365	asyncs [i]->sent = 0;
…		…
1195	#endif	1369	#endif
1196	}	1370	}
1197		1371
1198	/*****************************************************************************/	1372	/*****************************************************************************/
1199		1373
		1374	void
		1375	ev_feed_signal (int signum)
		1376	{
		1377	#if EV_MULTIPLICITY
		1378	EV_P = signals [signum - 1].loop;
		1379
		1380	if (!EV_A)
		1381	return;
		1382	#endif
		1383
		1384	signals [signum - 1].pending = 1;
		1385	evpipe_write (EV_A_ &sig_pending);
		1386	}
		1387
1200	static void	1388	static void
1201	ev_sighandler (int signum)	1389	ev_sighandler (int signum)
1202	{	1390	{
1203	#if EV_MULTIPLICITY
1204	struct ev_loop *loop = &default_loop_struct;
1205	#endif
1206
1207	#if _WIN32	1391	#ifdef _WIN32
1208	signal (signum, ev_sighandler);	1392	signal (signum, ev_sighandler);
1209	#endif	1393	#endif
1210		1394
1211	signals [signum - 1].gotsig = 1;	1395	ev_feed_signal (signum);
1212	evpipe_write (EV_A_ &gotsig);
1213	}	1396	}
1214		1397
1215	void noinline	1398	void noinline
1216	ev_feed_signal_event (EV_P_ int signum)	1399	ev_feed_signal_event (EV_P_ int signum)
1217	{	1400	{
1218	WL w;	1401	WL w;
1219		1402
		1403	if (expect_false (signum <= 0 || signum > EV_NSIG))
		1404	return;
		1405
		1406	--signum;
		1407
1220	#if EV_MULTIPLICITY	1408	#if EV_MULTIPLICITY
1221	assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));	1409	/* it is permissible to try to feed a signal to the wrong loop */
1222	#endif	1410	/* or, likely more useful, feeding a signal nobody is waiting for */
1223		1411
1224	--signum;	1412	if (expect_false (signals [signum].loop != EV_A))
1225
1226	if (signum < 0 || signum >= signalmax)
1227	return;	1413	return;
		1414	#endif
1228		1415
1229	signals [signum].gotsig = 0;	1416	signals [signum].pending = 0;
1230		1417
1231	for (w = signals [signum].head; w; w = w->next)	1418	for (w = signals [signum].head; w; w = w->next)
1232	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	1419	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1233	}	1420	}
1234		1421
		1422	#if EV_USE_SIGNALFD
		1423	static void
		1424	sigfdcb (EV_P_ ev_io *iow, int revents)
		1425	{
		1426	struct signalfd_siginfo si[2], *sip; /* these structs are big */
		1427
		1428	for (;;)
		1429	{
		1430	ssize_t res = read (sigfd, si, sizeof (si));
		1431
		1432	/* not ISO-C, as res might be -1, but works with SuS */
		1433	for (sip = si; (char *)sip < (char *)si + res; ++sip)
		1434	ev_feed_signal_event (EV_A_ sip->ssi_signo);
		1435
		1436	if (res < (ssize_t)sizeof (si))
		1437	break;
		1438	}
		1439	}
		1440	#endif
		1441
		1442	#endif
		1443
1235	/*****************************************************************************/	1444	/*****************************************************************************/
1236		1445
		1446	#if EV_CHILD_ENABLE
1237	static WL childs [EV_PID_HASHSIZE];	1447	static WL childs [EV_PID_HASHSIZE];
1238
1239	#ifndef _WIN32
1240		1448
1241	static ev_signal childev;	1449	static ev_signal childev;
1242		1450
1243	#ifndef WIFCONTINUED	1451	#ifndef WIFCONTINUED
1244	# define WIFCONTINUED(status) 0	1452	# define WIFCONTINUED(status) 0
…		…
1249	child_reap (EV_P_ int chain, int pid, int status)	1457	child_reap (EV_P_ int chain, int pid, int status)
1250	{	1458	{
1251	ev_child *w;	1459	ev_child *w;
1252	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);	1460	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1253		1461
1254	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1462	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1255	{	1463	{
1256	if ((w->pid == pid || !w->pid)	1464	if ((w->pid == pid || !w->pid)
1257	&& (!traced || (w->flags & 1)))	1465	&& (!traced || (w->flags & 1)))
1258	{	1466	{
1259	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */	1467	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
…		…
1284	/* make sure we are called again until all children have been reaped */	1492	/* make sure we are called again until all children have been reaped */
1285	/* we need to do it this way so that the callback gets called before we continue */	1493	/* we need to do it this way so that the callback gets called before we continue */
1286	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1494	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1287		1495
1288	child_reap (EV_A_ pid, pid, status);	1496	child_reap (EV_A_ pid, pid, status);
1289	if (EV_PID_HASHSIZE > 1)	1497	if ((EV_PID_HASHSIZE) > 1)
1290	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1498	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1291	}	1499	}
1292		1500
1293	#endif	1501	#endif
1294		1502
1295	/*****************************************************************************/	1503	/*****************************************************************************/
1296		1504
		1505	#if EV_USE_IOCP
		1506	# include "ev_iocp.c"
		1507	#endif
1297	#if EV_USE_PORT	1508	#if EV_USE_PORT
1298	# include "ev_port.c"	1509	# include "ev_port.c"
1299	#endif	1510	#endif
1300	#if EV_USE_KQUEUE	1511	#if EV_USE_KQUEUE
1301	# include "ev_kqueue.c"	1512	# include "ev_kqueue.c"
…		…
1361	#ifdef __APPLE__	1572	#ifdef __APPLE__
1362	/* only select works correctly on that "unix-certified" platform */	1573	/* only select works correctly on that "unix-certified" platform */
1363	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */	1574	flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1364	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */	1575	flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1365	#endif	1576	#endif
		1577	#ifdef __FreeBSD__
		1578	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
		1579	#endif
1366		1580
1367	return flags;	1581	return flags;
1368	}	1582	}
1369		1583
1370	unsigned int	1584	unsigned int
1371	ev_embeddable_backends (void)	1585	ev_embeddable_backends (void)
1372	{	1586	{
1373	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1587	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1374		1588
1375	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1589	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1376	/* please fix it and tell me how to detect the fix */	1590	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1377	flags &= ~EVBACKEND_EPOLL;	1591	flags &= ~EVBACKEND_EPOLL;
1378		1592
1379	return flags;	1593	return flags;
1380	}	1594	}
1381		1595
1382	unsigned int	1596	unsigned int
1383	ev_backend (EV_P)	1597	ev_backend (EV_P)
1384	{	1598	{
1385	return backend;	1599	return backend;
1386	}	1600	}
1387		1601
1388	#if EV_MINIMAL < 2	1602	#if EV_FEATURE_API
1389	unsigned int	1603	unsigned int
1390	ev_loop_count (EV_P)	1604	ev_iteration (EV_P)
1391	{	1605	{
1392	return loop_count;	1606	return loop_count;
1393	}	1607	}
1394		1608
1395	unsigned int	1609	unsigned int
1396	ev_loop_depth (EV_P)	1610	ev_depth (EV_P)
1397	{	1611	{
1398	return loop_depth;	1612	return loop_depth;
1399	}	1613	}
1400		1614
1401	void	1615	void
…		…
1438	static void noinline	1652	static void noinline
1439	loop_init (EV_P_ unsigned int flags)	1653	loop_init (EV_P_ unsigned int flags)
1440	{	1654	{
1441	if (!backend)	1655	if (!backend)
1442	{	1656	{
		1657	origflags = flags;
		1658
1443	#if EV_USE_REALTIME	1659	#if EV_USE_REALTIME
1444	if (!have_realtime)	1660	if (!have_realtime)
1445	{	1661	{
1446	struct timespec ts;	1662	struct timespec ts;
1447		1663
…		…
1458	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1674	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1459	have_monotonic = 1;	1675	have_monotonic = 1;
1460	}	1676	}
1461	#endif	1677	#endif
1462		1678
		1679	/* pid check not overridable via env */
		1680	#ifndef _WIN32
		1681	if (flags & EVFLAG_FORKCHECK)
		1682	curpid = getpid ();
		1683	#endif
		1684
		1685	if (!(flags & EVFLAG_NOENV)
		1686	&& !enable_secure ()
		1687	&& getenv ("LIBEV_FLAGS"))
		1688	flags = atoi (getenv ("LIBEV_FLAGS"));
		1689
1463	ev_rt_now = ev_time ();	1690	ev_rt_now = ev_time ();
1464	mn_now = get_clock ();	1691	mn_now = get_clock ();
1465	now_floor = mn_now;	1692	now_floor = mn_now;
1466	rtmn_diff = ev_rt_now - mn_now;	1693	rtmn_diff = ev_rt_now - mn_now;
1467	#if EV_MINIMAL < 2	1694	#if EV_FEATURE_API
1468	invoke_cb = ev_invoke_pending;	1695	invoke_cb = ev_invoke_pending;
1469	#endif	1696	#endif
1470		1697
1471	io_blocktime = 0.;	1698	io_blocktime = 0.;
1472	timeout_blocktime = 0.;	1699	timeout_blocktime = 0.;
1473	backend = 0;	1700	backend = 0;
1474	backend_fd = -1;	1701	backend_fd = -1;
1475	gotasync = 0;	1702	sig_pending = 0;
		1703	#if EV_ASYNC_ENABLE
		1704	async_pending = 0;
		1705	#endif
1476	#if EV_USE_INOTIFY	1706	#if EV_USE_INOTIFY
1477	fs_fd = -2;	1707	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1478	#endif	1708	#endif
1479		1709	#if EV_USE_SIGNALFD
1480	/* pid check not overridable via env */	1710	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1481	#ifndef _WIN32
1482	if (flags & EVFLAG_FORKCHECK)
1483	curpid = getpid ();
1484	#endif	1711	#endif
1485		1712
1486	if (!(flags & EVFLAG_NOENV)	1713	if (!(flags & EVBACKEND_MASK))
1487	&& !enable_secure ()
1488	&& getenv ("LIBEV_FLAGS"))
1489	flags = atoi (getenv ("LIBEV_FLAGS"));
1490
1491	if (!(flags & 0x0000ffffU))
1492	flags |= ev_recommended_backends ();	1714	flags |= ev_recommended_backends ();
1493		1715
		1716	#if EV_USE_IOCP
		1717	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1718	#endif
1494	#if EV_USE_PORT	1719	#if EV_USE_PORT
1495	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1720	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1496	#endif	1721	#endif
1497	#if EV_USE_KQUEUE	1722	#if EV_USE_KQUEUE
1498	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1723	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1507	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1732	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1508	#endif	1733	#endif
1509		1734
1510	ev_prepare_init (&pending_w, pendingcb);	1735	ev_prepare_init (&pending_w, pendingcb);
1511		1736
		1737	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1512	ev_init (&pipe_w, pipecb);	1738	ev_init (&pipe_w, pipecb);
1513	ev_set_priority (&pipe_w, EV_MAXPRI);	1739	ev_set_priority (&pipe_w, EV_MAXPRI);
		1740	#endif
1514	}	1741	}
1515	}	1742	}
1516		1743
1517	/* free up a loop structure */	1744	/* free up a loop structure */
1518	static void noinline	1745	void
1519	loop_destroy (EV_P)	1746	ev_loop_destroy (EV_P)
1520	{	1747	{
1521	int i;	1748	int i;
1522		1749
		1750	#if EV_MULTIPLICITY
		1751	/* mimic free (0) */
		1752	if (!EV_A)
		1753	return;
		1754	#endif
		1755
		1756	#if EV_CLEANUP_ENABLE
		1757	/* queue cleanup watchers (and execute them) */
		1758	if (expect_false (cleanupcnt))
		1759	{
		1760	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1761	EV_INVOKE_PENDING;
		1762	}
		1763	#endif
		1764
		1765	#if EV_CHILD_ENABLE
		1766	if (ev_is_active (&childev))
		1767	{
		1768	ev_ref (EV_A); /* child watcher */
		1769	ev_signal_stop (EV_A_ &childev);
		1770	}
		1771	#endif
		1772
1523	if (ev_is_active (&pipe_w))	1773	if (ev_is_active (&pipe_w))
1524	{	1774	{
1525	ev_ref (EV_A); /* signal watcher */	1775	/*ev_ref (EV_A);*/
1526	ev_io_stop (EV_A_ &pipe_w);	1776	/*ev_io_stop (EV_A_ &pipe_w);*/
1527		1777
1528	#if EV_USE_EVENTFD	1778	#if EV_USE_EVENTFD
1529	if (evfd >= 0)	1779	if (evfd >= 0)
1530	close (evfd);	1780	close (evfd);
1531	#endif	1781	#endif
1532		1782
1533	if (evpipe [0] >= 0)	1783	if (evpipe [0] >= 0)
1534	{	1784	{
1535	close (evpipe [0]);	1785	EV_WIN32_CLOSE_FD (evpipe [0]);
1536	close (evpipe [1]);	1786	EV_WIN32_CLOSE_FD (evpipe [1]);
1537	}	1787	}
1538	}	1788	}
		1789
		1790	#if EV_USE_SIGNALFD
		1791	if (ev_is_active (&sigfd_w))
		1792	close (sigfd);
		1793	#endif
1539		1794
1540	#if EV_USE_INOTIFY	1795	#if EV_USE_INOTIFY
1541	if (fs_fd >= 0)	1796	if (fs_fd >= 0)
1542	close (fs_fd);	1797	close (fs_fd);
1543	#endif	1798	#endif
1544		1799
1545	if (backend_fd >= 0)	1800	if (backend_fd >= 0)
1546	close (backend_fd);	1801	close (backend_fd);
1547		1802
		1803	#if EV_USE_IOCP
		1804	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1805	#endif
1548	#if EV_USE_PORT	1806	#if EV_USE_PORT
1549	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1807	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1550	#endif	1808	#endif
1551	#if EV_USE_KQUEUE	1809	#if EV_USE_KQUEUE
1552	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1810	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1567	#if EV_IDLE_ENABLE	1825	#if EV_IDLE_ENABLE
1568	array_free (idle, [i]);	1826	array_free (idle, [i]);
1569	#endif	1827	#endif
1570	}	1828	}
1571		1829
1572	ev_free (anfds); anfdmax = 0;	1830	ev_free (anfds); anfds = 0; anfdmax = 0;
1573		1831
1574	/* have to use the microsoft-never-gets-it-right macro */	1832	/* have to use the microsoft-never-gets-it-right macro */
1575	array_free (rfeed, EMPTY);	1833	array_free (rfeed, EMPTY);
1576	array_free (fdchange, EMPTY);	1834	array_free (fdchange, EMPTY);
1577	array_free (timer, EMPTY);	1835	array_free (timer, EMPTY);
…		…
1579	array_free (periodic, EMPTY);	1837	array_free (periodic, EMPTY);
1580	#endif	1838	#endif
1581	#if EV_FORK_ENABLE	1839	#if EV_FORK_ENABLE
1582	array_free (fork, EMPTY);	1840	array_free (fork, EMPTY);
1583	#endif	1841	#endif
		1842	#if EV_CLEANUP_ENABLE
		1843	array_free (cleanup, EMPTY);
		1844	#endif
1584	array_free (prepare, EMPTY);	1845	array_free (prepare, EMPTY);
1585	array_free (check, EMPTY);	1846	array_free (check, EMPTY);
1586	#if EV_ASYNC_ENABLE	1847	#if EV_ASYNC_ENABLE
1587	array_free (async, EMPTY);	1848	array_free (async, EMPTY);
1588	#endif	1849	#endif
1589		1850
1590	backend = 0;	1851	backend = 0;
		1852
		1853	#if EV_MULTIPLICITY
		1854	if (ev_is_default_loop (EV_A))
		1855	#endif
		1856	ev_default_loop_ptr = 0;
		1857	#if EV_MULTIPLICITY
		1858	else
		1859	ev_free (EV_A);
		1860	#endif
1591	}	1861	}
1592		1862
1593	#if EV_USE_INOTIFY	1863	#if EV_USE_INOTIFY
1594	inline_size void infy_fork (EV_P);	1864	inline_size void infy_fork (EV_P);
1595	#endif	1865	#endif
…		…
1612		1882
1613	if (ev_is_active (&pipe_w))	1883	if (ev_is_active (&pipe_w))
1614	{	1884	{
1615	/* this "locks" the handlers against writing to the pipe */	1885	/* this "locks" the handlers against writing to the pipe */
1616	/* while we modify the fd vars */	1886	/* while we modify the fd vars */
1617	gotsig = 1;	1887	sig_pending = 1;
1618	#if EV_ASYNC_ENABLE	1888	#if EV_ASYNC_ENABLE
1619	gotasync = 1;	1889	async_pending = 1;
1620	#endif	1890	#endif
1621		1891
1622	ev_ref (EV_A);	1892	ev_ref (EV_A);
1623	ev_io_stop (EV_A_ &pipe_w);	1893	ev_io_stop (EV_A_ &pipe_w);
1624		1894
…		…
1627	close (evfd);	1897	close (evfd);
1628	#endif	1898	#endif
1629		1899
1630	if (evpipe [0] >= 0)	1900	if (evpipe [0] >= 0)
1631	{	1901	{
1632	close (evpipe [0]);	1902	EV_WIN32_CLOSE_FD (evpipe [0]);
1633	close (evpipe [1]);	1903	EV_WIN32_CLOSE_FD (evpipe [1]);
1634	}	1904	}
1635		1905
		1906	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1636	evpipe_init (EV_A);	1907	evpipe_init (EV_A);
1637	/* now iterate over everything, in case we missed something */	1908	/* now iterate over everything, in case we missed something */
1638	pipecb (EV_A_ &pipe_w, EV_READ);	1909	pipecb (EV_A_ &pipe_w, EV_READ);
		1910	#endif
1639	}	1911	}
1640		1912
1641	postfork = 0;	1913	postfork = 0;
1642	}	1914	}
1643		1915
1644	#if EV_MULTIPLICITY	1916	#if EV_MULTIPLICITY
1645		1917
1646	struct ev_loop *	1918	struct ev_loop *
1647	ev_loop_new (unsigned int flags)	1919	ev_loop_new (unsigned int flags)
1648	{	1920	{
1649	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	1921	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1650		1922
1651	memset (loop, 0, sizeof (struct ev_loop));	1923	memset (EV_A, 0, sizeof (struct ev_loop));
1652
1653	loop_init (EV_A_ flags);	1924	loop_init (EV_A_ flags);
1654		1925
1655	if (ev_backend (EV_A))	1926	if (ev_backend (EV_A))
1656	return loop;	1927	return EV_A;
1657		1928
		1929	ev_free (EV_A);
1658	return 0;	1930	return 0;
1659	}	1931	}
1660		1932
1661	void
1662	ev_loop_destroy (EV_P)
1663	{
1664	loop_destroy (EV_A);
1665	ev_free (loop);
1666	}
1667
1668	void
1669	ev_loop_fork (EV_P)
1670	{
1671	postfork = 1; /* must be in line with ev_default_fork */
1672	}
1673	#endif /* multiplicity */	1933	#endif /* multiplicity */
1674		1934
1675	#if EV_VERIFY	1935	#if EV_VERIFY
1676	static void noinline	1936	static void noinline
1677	verify_watcher (EV_P_ W w)	1937	verify_watcher (EV_P_ W w)
…		…
1706	verify_watcher (EV_A_ ws [cnt]);	1966	verify_watcher (EV_A_ ws [cnt]);
1707	}	1967	}
1708	}	1968	}
1709	#endif	1969	#endif
1710		1970
1711	#if EV_MINIMAL < 2	1971	#if EV_FEATURE_API
1712	void	1972	void
1713	ev_loop_verify (EV_P)	1973	ev_verify (EV_P)
1714	{	1974	{
1715	#if EV_VERIFY	1975	#if EV_VERIFY
1716	int i;	1976	int i;
1717	WL w;	1977	WL w;
1718		1978
…		…
1752	#if EV_FORK_ENABLE	2012	#if EV_FORK_ENABLE
1753	assert (forkmax >= forkcnt);	2013	assert (forkmax >= forkcnt);
1754	array_verify (EV_A_ (W *)forks, forkcnt);	2014	array_verify (EV_A_ (W *)forks, forkcnt);
1755	#endif	2015	#endif
1756		2016
		2017	#if EV_CLEANUP_ENABLE
		2018	assert (cleanupmax >= cleanupcnt);
		2019	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2020	#endif
		2021
1757	#if EV_ASYNC_ENABLE	2022	#if EV_ASYNC_ENABLE
1758	assert (asyncmax >= asynccnt);	2023	assert (asyncmax >= asynccnt);
1759	array_verify (EV_A_ (W *)asyncs, asynccnt);	2024	array_verify (EV_A_ (W *)asyncs, asynccnt);
1760	#endif	2025	#endif
1761		2026
		2027	#if EV_PREPARE_ENABLE
1762	assert (preparemax >= preparecnt);	2028	assert (preparemax >= preparecnt);
1763	array_verify (EV_A_ (W *)prepares, preparecnt);	2029	array_verify (EV_A_ (W *)prepares, preparecnt);
		2030	#endif
1764		2031
		2032	#if EV_CHECK_ENABLE
1765	assert (checkmax >= checkcnt);	2033	assert (checkmax >= checkcnt);
1766	array_verify (EV_A_ (W *)checks, checkcnt);	2034	array_verify (EV_A_ (W *)checks, checkcnt);
		2035	#endif
1767		2036
1768	# if 0	2037	# if 0
		2038	#if EV_CHILD_ENABLE
1769	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	2039	for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1770	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)	2040	for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
		2041	#endif
1771	# endif	2042	# endif
1772	#endif	2043	#endif
1773	}	2044	}
1774	#endif	2045	#endif
1775		2046
1776	#if EV_MULTIPLICITY	2047	#if EV_MULTIPLICITY
1777	struct ev_loop *	2048	struct ev_loop *
1778	ev_default_loop_init (unsigned int flags)
1779	#else	2049	#else
1780	int	2050	int
		2051	#endif
1781	ev_default_loop (unsigned int flags)	2052	ev_default_loop (unsigned int flags)
1782	#endif
1783	{	2053	{
1784	if (!ev_default_loop_ptr)	2054	if (!ev_default_loop_ptr)
1785	{	2055	{
1786	#if EV_MULTIPLICITY	2056	#if EV_MULTIPLICITY
1787	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	2057	EV_P = ev_default_loop_ptr = &default_loop_struct;
1788	#else	2058	#else
1789	ev_default_loop_ptr = 1;	2059	ev_default_loop_ptr = 1;
1790	#endif	2060	#endif
1791		2061
1792	loop_init (EV_A_ flags);	2062	loop_init (EV_A_ flags);
1793		2063
1794	if (ev_backend (EV_A))	2064	if (ev_backend (EV_A))
1795	{	2065	{
1796	#ifndef _WIN32	2066	#if EV_CHILD_ENABLE
1797	ev_signal_init (&childev, childcb, SIGCHLD);	2067	ev_signal_init (&childev, childcb, SIGCHLD);
1798	ev_set_priority (&childev, EV_MAXPRI);	2068	ev_set_priority (&childev, EV_MAXPRI);
1799	ev_signal_start (EV_A_ &childev);	2069	ev_signal_start (EV_A_ &childev);
1800	ev_unref (EV_A); /* child watcher should not keep loop alive */	2070	ev_unref (EV_A); /* child watcher should not keep loop alive */
1801	#endif	2071	#endif
…		…
1806		2076
1807	return ev_default_loop_ptr;	2077	return ev_default_loop_ptr;
1808	}	2078	}
1809		2079
1810	void	2080	void
1811	ev_default_destroy (void)	2081	ev_loop_fork (EV_P)
1812	{	2082	{
1813	#if EV_MULTIPLICITY
1814	struct ev_loop *loop = ev_default_loop_ptr;
1815	#endif
1816
1817	ev_default_loop_ptr = 0;
1818
1819	#ifndef _WIN32
1820	ev_ref (EV_A); /* child watcher */
1821	ev_signal_stop (EV_A_ &childev);
1822	#endif
1823
1824	loop_destroy (EV_A);
1825	}
1826
1827	void
1828	ev_default_fork (void)
1829	{
1830	#if EV_MULTIPLICITY
1831	struct ev_loop *loop = ev_default_loop_ptr;
1832	#endif
1833
1834	postfork = 1; /* must be in line with ev_loop_fork */	2083	postfork = 1; /* must be in line with ev_default_fork */
1835	}	2084	}
1836		2085
1837	/*****************************************************************************/	2086	/*****************************************************************************/
1838		2087
1839	void	2088	void
1840	ev_invoke (EV_P_ void *w, int revents)	2089	ev_invoke (EV_P_ void *w, int revents)
1841	{	2090	{
1842	EV_CB_INVOKE ((W)w, revents);	2091	EV_CB_INVOKE ((W)w, revents);
		2092	}
		2093
		2094	unsigned int
		2095	ev_pending_count (EV_P)
		2096	{
		2097	int pri;
		2098	unsigned int count = 0;
		2099
		2100	for (pri = NUMPRI; pri--; )
		2101	count += pendingcnt [pri];
		2102
		2103	return count;
1843	}	2104	}
1844		2105
1845	void noinline	2106	void noinline
1846	ev_invoke_pending (EV_P)	2107	ev_invoke_pending (EV_P)
1847	{	2108	{
…		…
1849		2110
1850	for (pri = NUMPRI; pri--; )	2111	for (pri = NUMPRI; pri--; )
1851	while (pendingcnt [pri])	2112	while (pendingcnt [pri])
1852	{	2113	{
1853	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2114	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1854
1855	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1856	/* ^ this is no longer true, as pending_w could be here */
1857		2115
1858	p->w->pending = 0;	2116	p->w->pending = 0;
1859	EV_CB_INVOKE (p->w, p->events);	2117	EV_CB_INVOKE (p->w, p->events);
1860	EV_FREQUENT_CHECK;	2118	EV_FREQUENT_CHECK;
1861	}	2119	}
…		…
1918	EV_FREQUENT_CHECK;	2176	EV_FREQUENT_CHECK;
1919	feed_reverse (EV_A_ (W)w);	2177	feed_reverse (EV_A_ (W)w);
1920	}	2178	}
1921	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);	2179	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1922		2180
1923	feed_reverse_done (EV_A_ EV_TIMEOUT);	2181	feed_reverse_done (EV_A_ EV_TIMER);
1924	}	2182	}
1925	}	2183	}
1926		2184
1927	#if EV_PERIODIC_ENABLE	2185	#if EV_PERIODIC_ENABLE
1928	/* make periodics pending */	2186	/* make periodics pending */
…		…
1981	feed_reverse_done (EV_A_ EV_PERIODIC);	2239	feed_reverse_done (EV_A_ EV_PERIODIC);
1982	}	2240	}
1983	}	2241	}
1984		2242
1985	/* simply recalculate all periodics */	2243	/* simply recalculate all periodics */
1986	/* TODO: maybe ensure that at leats one event happens when jumping forward? */	2244	/* TODO: maybe ensure that at least one event happens when jumping forward? */
1987	static void noinline	2245	static void noinline
1988	periodics_reschedule (EV_P)	2246	periodics_reschedule (EV_P)
1989	{	2247	{
1990	int i;	2248	int i;
1991		2249
…		…
2019	ANHE_at_cache (*he);	2277	ANHE_at_cache (*he);
2020	}	2278	}
2021	}	2279	}
2022		2280
2023	/* fetch new monotonic and realtime times from the kernel */	2281	/* fetch new monotonic and realtime times from the kernel */
2024	/* also detetc if there was a timejump, and act accordingly */	2282	/* also detect if there was a timejump, and act accordingly */
2025	inline_speed void	2283	inline_speed void
2026	time_update (EV_P_ ev_tstamp max_block)	2284	time_update (EV_P_ ev_tstamp max_block)
2027	{	2285	{
2028	#if EV_USE_MONOTONIC	2286	#if EV_USE_MONOTONIC
2029	if (expect_true (have_monotonic))	2287	if (expect_true (have_monotonic))
…		…
2087	mn_now = ev_rt_now;	2345	mn_now = ev_rt_now;
2088	}	2346	}
2089	}	2347	}
2090		2348
2091	void	2349	void
2092	ev_loop (EV_P_ int flags)	2350	ev_run (EV_P_ int flags)
2093	{	2351	{
2094	#if EV_MINIMAL < 2	2352	#if EV_FEATURE_API
2095	++loop_depth;	2353	++loop_depth;
2096	#endif	2354	#endif
2097		2355
2098	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2356	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2099		2357
2100	loop_done = EVUNLOOP_CANCEL;	2358	loop_done = EVBREAK_CANCEL;
2101		2359
2102	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2360	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2103		2361
2104	do	2362	do
2105	{	2363	{
2106	#if EV_VERIFY >= 2	2364	#if EV_VERIFY >= 2
2107	ev_loop_verify (EV_A);	2365	ev_verify (EV_A);
2108	#endif	2366	#endif
2109		2367
2110	#ifndef _WIN32	2368	#ifndef _WIN32
2111	if (expect_false (curpid)) /* penalise the forking check even more */	2369	if (expect_false (curpid)) /* penalise the forking check even more */
2112	if (expect_false (getpid () != curpid))	2370	if (expect_false (getpid () != curpid))
…		…
2124	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	2382	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2125	EV_INVOKE_PENDING;	2383	EV_INVOKE_PENDING;
2126	}	2384	}
2127	#endif	2385	#endif
2128		2386
		2387	#if EV_PREPARE_ENABLE
2129	/* queue prepare watchers (and execute them) */	2388	/* queue prepare watchers (and execute them) */
2130	if (expect_false (preparecnt))	2389	if (expect_false (preparecnt))
2131	{	2390	{
2132	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	2391	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2133	EV_INVOKE_PENDING;	2392	EV_INVOKE_PENDING;
2134	}	2393	}
		2394	#endif
2135		2395
2136	if (expect_false (loop_done))	2396	if (expect_false (loop_done))
2137	break;	2397	break;
2138		2398
2139	/* we might have forked, so reify kernel state if necessary */	2399	/* we might have forked, so reify kernel state if necessary */
…		…
2146	/* calculate blocking time */	2406	/* calculate blocking time */
2147	{	2407	{
2148	ev_tstamp waittime = 0.;	2408	ev_tstamp waittime = 0.;
2149	ev_tstamp sleeptime = 0.;	2409	ev_tstamp sleeptime = 0.;
2150		2410
		2411	/* remember old timestamp for io_blocktime calculation */
		2412	ev_tstamp prev_mn_now = mn_now;
		2413
		2414	/* update time to cancel out callback processing overhead */
		2415	time_update (EV_A_ 1e100);
		2416
2151	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2417	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2152	{	2418	{
2153	/* remember old timestamp for io_blocktime calculation */
2154	ev_tstamp prev_mn_now = mn_now;
2155
2156	/* update time to cancel out callback processing overhead */
2157	time_update (EV_A_ 1e100);
2158
2159	waittime = MAX_BLOCKTIME;	2419	waittime = MAX_BLOCKTIME;
2160		2420
2161	if (timercnt)	2421	if (timercnt)
2162	{	2422	{
2163	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2423	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
…		…
2190	waittime -= sleeptime;	2450	waittime -= sleeptime;
2191	}	2451	}
2192	}	2452	}
2193	}	2453	}
2194		2454
2195	#if EV_MINIMAL < 2	2455	#if EV_FEATURE_API
2196	++loop_count;	2456	++loop_count;
2197	#endif	2457	#endif
2198	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2458	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2199	backend_poll (EV_A_ waittime);	2459	backend_poll (EV_A_ waittime);
2200	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2460	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2201		2461
2202	/* update ev_rt_now, do magic */	2462	/* update ev_rt_now, do magic */
2203	time_update (EV_A_ waittime + sleeptime);	2463	time_update (EV_A_ waittime + sleeptime);
2204	}	2464	}
2205		2465
…		…
2212	#if EV_IDLE_ENABLE	2472	#if EV_IDLE_ENABLE
2213	/* queue idle watchers unless other events are pending */	2473	/* queue idle watchers unless other events are pending */
2214	idle_reify (EV_A);	2474	idle_reify (EV_A);
2215	#endif	2475	#endif
2216		2476
		2477	#if EV_CHECK_ENABLE
2217	/* queue check watchers, to be executed first */	2478	/* queue check watchers, to be executed first */
2218	if (expect_false (checkcnt))	2479	if (expect_false (checkcnt))
2219	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2480	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
		2481	#endif
2220		2482
2221	EV_INVOKE_PENDING;	2483	EV_INVOKE_PENDING;
2222	}	2484	}
2223	while (expect_true (	2485	while (expect_true (
2224	activecnt	2486	activecnt
2225	&& !loop_done	2487	&& !loop_done
2226	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2488	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2227	));	2489	));
2228		2490
2229	if (loop_done == EVUNLOOP_ONE)	2491	if (loop_done == EVBREAK_ONE)
2230	loop_done = EVUNLOOP_CANCEL;	2492	loop_done = EVBREAK_CANCEL;
2231		2493
2232	#if EV_MINIMAL < 2	2494	#if EV_FEATURE_API
2233	--loop_depth;	2495	--loop_depth;
2234	#endif	2496	#endif
2235	}	2497	}
2236		2498
2237	void	2499	void
2238	ev_unloop (EV_P_ int how)	2500	ev_break (EV_P_ int how)
2239	{	2501	{
2240	loop_done = how;	2502	loop_done = how;
2241	}	2503	}
2242		2504
2243	void	2505	void
…		…
2290	inline_size void	2552	inline_size void
2291	wlist_del (WL *head, WL elem)	2553	wlist_del (WL *head, WL elem)
2292	{	2554	{
2293	while (*head)	2555	while (*head)
2294	{	2556	{
2295	if (*head == elem)	2557	if (expect_true (*head == elem))
2296	{	2558	{
2297	*head = elem->next;	2559	*head = elem->next;
2298	return;	2560	break;
2299	}	2561	}
2300		2562
2301	head = &(*head)->next;	2563	head = &(*head)->next;
2302	}	2564	}
2303	}	2565	}
…		…
2363		2625
2364	if (expect_false (ev_is_active (w)))	2626	if (expect_false (ev_is_active (w)))
2365	return;	2627	return;
2366		2628
2367	assert (("libev: ev_io_start called with negative fd", fd >= 0));	2629	assert (("libev: ev_io_start called with negative fd", fd >= 0));
2368	assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	2630	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2369		2631
2370	EV_FREQUENT_CHECK;	2632	EV_FREQUENT_CHECK;
2371		2633
2372	ev_start (EV_A_ (W)w, 1);	2634	ev_start (EV_A_ (W)w, 1);
2373	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	2635	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
…		…
2391	EV_FREQUENT_CHECK;	2653	EV_FREQUENT_CHECK;
2392		2654
2393	wlist_del (&anfds[w->fd].head, (WL)w);	2655	wlist_del (&anfds[w->fd].head, (WL)w);
2394	ev_stop (EV_A_ (W)w);	2656	ev_stop (EV_A_ (W)w);
2395		2657
2396	fd_change (EV_A_ w->fd, 1);	2658	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2397		2659
2398	EV_FREQUENT_CHECK;	2660	EV_FREQUENT_CHECK;
2399	}	2661	}
2400		2662
2401	void noinline	2663	void noinline
…		…
2443	timers [active] = timers [timercnt + HEAP0];	2705	timers [active] = timers [timercnt + HEAP0];
2444	adjustheap (timers, timercnt, active);	2706	adjustheap (timers, timercnt, active);
2445	}	2707	}
2446	}	2708	}
2447		2709
2448	EV_FREQUENT_CHECK;
2449
2450	ev_at (w) -= mn_now;	2710	ev_at (w) -= mn_now;
2451		2711
2452	ev_stop (EV_A_ (W)w);	2712	ev_stop (EV_A_ (W)w);
		2713
		2714	EV_FREQUENT_CHECK;
2453	}	2715	}
2454		2716
2455	void noinline	2717	void noinline
2456	ev_timer_again (EV_P_ ev_timer *w)	2718	ev_timer_again (EV_P_ ev_timer *w)
2457	{	2719	{
…		…
2475	}	2737	}
2476		2738
2477	EV_FREQUENT_CHECK;	2739	EV_FREQUENT_CHECK;
2478	}	2740	}
2479		2741
		2742	ev_tstamp
		2743	ev_timer_remaining (EV_P_ ev_timer *w)
		2744	{
		2745	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
		2746	}
		2747
2480	#if EV_PERIODIC_ENABLE	2748	#if EV_PERIODIC_ENABLE
2481	void noinline	2749	void noinline
2482	ev_periodic_start (EV_P_ ev_periodic *w)	2750	ev_periodic_start (EV_P_ ev_periodic *w)
2483	{	2751	{
2484	if (expect_false (ev_is_active (w)))	2752	if (expect_false (ev_is_active (w)))
…		…
2530	periodics [active] = periodics [periodiccnt + HEAP0];	2798	periodics [active] = periodics [periodiccnt + HEAP0];
2531	adjustheap (periodics, periodiccnt, active);	2799	adjustheap (periodics, periodiccnt, active);
2532	}	2800	}
2533	}	2801	}
2534		2802
2535	EV_FREQUENT_CHECK;
2536
2537	ev_stop (EV_A_ (W)w);	2803	ev_stop (EV_A_ (W)w);
		2804
		2805	EV_FREQUENT_CHECK;
2538	}	2806	}
2539		2807
2540	void noinline	2808	void noinline
2541	ev_periodic_again (EV_P_ ev_periodic *w)	2809	ev_periodic_again (EV_P_ ev_periodic *w)
2542	{	2810	{
…		…
2548		2816
2549	#ifndef SA_RESTART	2817	#ifndef SA_RESTART
2550	# define SA_RESTART 0	2818	# define SA_RESTART 0
2551	#endif	2819	#endif
2552		2820
		2821	#if EV_SIGNAL_ENABLE
		2822
2553	void noinline	2823	void noinline
2554	ev_signal_start (EV_P_ ev_signal *w)	2824	ev_signal_start (EV_P_ ev_signal *w)
2555	{	2825	{
2556	#if EV_MULTIPLICITY
2557	assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2558	#endif
2559	if (expect_false (ev_is_active (w)))	2826	if (expect_false (ev_is_active (w)))
2560	return;	2827	return;
2561		2828
2562	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0));	2829	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2563		2830
2564	evpipe_init (EV_A);	2831	#if EV_MULTIPLICITY
		2832	assert (("libev: a signal must not be attached to two different loops",
		2833	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2565		2834
2566	EV_FREQUENT_CHECK;	2835	signals [w->signum - 1].loop = EV_A;
		2836	#endif
2567		2837
		2838	EV_FREQUENT_CHECK;
		2839
		2840	#if EV_USE_SIGNALFD
		2841	if (sigfd == -2)
2568	{	2842	{
2569	#ifndef _WIN32	2843	sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2570	sigset_t full, prev;	2844	if (sigfd < 0 && errno == EINVAL)
2571	sigfillset (&full);	2845	sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2572	sigprocmask (SIG_SETMASK, &full, &prev);
2573	#endif
2574		2846
2575	array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero);	2847	if (sigfd >= 0)
		2848	{
		2849	fd_intern (sigfd); /* doing it twice will not hurt */
2576		2850
2577	#ifndef _WIN32	2851	sigemptyset (&sigfd_set);
2578	sigprocmask (SIG_SETMASK, &prev, 0);	2852
2579	#endif	2853	ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
		2854	ev_set_priority (&sigfd_w, EV_MAXPRI);
		2855	ev_io_start (EV_A_ &sigfd_w);
		2856	ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
		2857	}
2580	}	2858	}
		2859
		2860	if (sigfd >= 0)
		2861	{
		2862	/* TODO: check .head */
		2863	sigaddset (&sigfd_set, w->signum);
		2864	sigprocmask (SIG_BLOCK, &sigfd_set, 0);
		2865
		2866	signalfd (sigfd, &sigfd_set, 0);
		2867	}
		2868	#endif
2581		2869
2582	ev_start (EV_A_ (W)w, 1);	2870	ev_start (EV_A_ (W)w, 1);
2583	wlist_add (&signals [w->signum - 1].head, (WL)w);	2871	wlist_add (&signals [w->signum - 1].head, (WL)w);
2584		2872
2585	if (!((WL)w)->next)	2873	if (!((WL)w)->next)
		2874	# if EV_USE_SIGNALFD
		2875	if (sigfd < 0) /*TODO*/
		2876	# endif
2586	{	2877	{
2587	#if _WIN32	2878	# ifdef _WIN32
		2879	evpipe_init (EV_A);
		2880
2588	signal (w->signum, ev_sighandler);	2881	signal (w->signum, ev_sighandler);
2589	#else	2882	# else
2590	struct sigaction sa;	2883	struct sigaction sa;
		2884
		2885	evpipe_init (EV_A);
		2886
2591	sa.sa_handler = ev_sighandler;	2887	sa.sa_handler = ev_sighandler;
2592	sigfillset (&sa.sa_mask);	2888	sigfillset (&sa.sa_mask);
2593	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2889	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2594	sigaction (w->signum, &sa, 0);	2890	sigaction (w->signum, &sa, 0);
		2891
		2892	if (origflags & EVFLAG_NOSIGMASK)
		2893	{
		2894	sigemptyset (&sa.sa_mask);
		2895	sigaddset (&sa.sa_mask, w->signum);
		2896	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		2897	}
2595	#endif	2898	#endif
2596	}	2899	}
2597		2900
2598	EV_FREQUENT_CHECK;	2901	EV_FREQUENT_CHECK;
2599	}	2902	}
2600		2903
2601	void noinline	2904	void noinline
…		…
2609		2912
2610	wlist_del (&signals [w->signum - 1].head, (WL)w);	2913	wlist_del (&signals [w->signum - 1].head, (WL)w);
2611	ev_stop (EV_A_ (W)w);	2914	ev_stop (EV_A_ (W)w);
2612		2915
2613	if (!signals [w->signum - 1].head)	2916	if (!signals [w->signum - 1].head)
		2917	{
		2918	#if EV_MULTIPLICITY
		2919	signals [w->signum - 1].loop = 0; /* unattach from signal */
		2920	#endif
		2921	#if EV_USE_SIGNALFD
		2922	if (sigfd >= 0)
		2923	{
		2924	sigset_t ss;
		2925
		2926	sigemptyset (&ss);
		2927	sigaddset (&ss, w->signum);
		2928	sigdelset (&sigfd_set, w->signum);
		2929
		2930	signalfd (sigfd, &sigfd_set, 0);
		2931	sigprocmask (SIG_UNBLOCK, &ss, 0);
		2932	}
		2933	else
		2934	#endif
2614	signal (w->signum, SIG_DFL);	2935	signal (w->signum, SIG_DFL);
		2936	}
2615		2937
2616	EV_FREQUENT_CHECK;	2938	EV_FREQUENT_CHECK;
2617	}	2939	}
		2940
		2941	#endif
		2942
		2943	#if EV_CHILD_ENABLE
2618		2944
2619	void	2945	void
2620	ev_child_start (EV_P_ ev_child *w)	2946	ev_child_start (EV_P_ ev_child *w)
2621	{	2947	{
2622	#if EV_MULTIPLICITY	2948	#if EV_MULTIPLICITY
…		…
2626	return;	2952	return;
2627		2953
2628	EV_FREQUENT_CHECK;	2954	EV_FREQUENT_CHECK;
2629		2955
2630	ev_start (EV_A_ (W)w, 1);	2956	ev_start (EV_A_ (W)w, 1);
2631	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2957	wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2632		2958
2633	EV_FREQUENT_CHECK;	2959	EV_FREQUENT_CHECK;
2634	}	2960	}
2635		2961
2636	void	2962	void
…		…
2640	if (expect_false (!ev_is_active (w)))	2966	if (expect_false (!ev_is_active (w)))
2641	return;	2967	return;
2642		2968
2643	EV_FREQUENT_CHECK;	2969	EV_FREQUENT_CHECK;
2644		2970
2645	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2971	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2646	ev_stop (EV_A_ (W)w);	2972	ev_stop (EV_A_ (W)w);
2647		2973
2648	EV_FREQUENT_CHECK;	2974	EV_FREQUENT_CHECK;
2649	}	2975	}
		2976
		2977	#endif
2650		2978
2651	#if EV_STAT_ENABLE	2979	#if EV_STAT_ENABLE
2652		2980
2653	# ifdef _WIN32	2981	# ifdef _WIN32
2654	# undef lstat	2982	# undef lstat
…		…
2660	#define MIN_STAT_INTERVAL 0.1074891	2988	#define MIN_STAT_INTERVAL 0.1074891
2661		2989
2662	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2990	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2663		2991
2664	#if EV_USE_INOTIFY	2992	#if EV_USE_INOTIFY
2665	# define EV_INOTIFY_BUFSIZE 8192	2993
		2994	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
		2995	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2666		2996
2667	static void noinline	2997	static void noinline
2668	infy_add (EV_P_ ev_stat *w)	2998	infy_add (EV_P_ ev_stat *w)
2669	{	2999	{
2670	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);	3000	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);
2671		3001
2672	if (w->wd < 0)	3002	if (w->wd >= 0)
		3003	{
		3004	struct statfs sfs;
		3005
		3006	/* now local changes will be tracked by inotify, but remote changes won't */
		3007	/* unless the filesystem is known to be local, we therefore still poll */
		3008	/* also do poll on <2.6.25, but with normal frequency */
		3009
		3010	if (!fs_2625)
		3011	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3012	else if (!statfs (w->path, &sfs)
		3013	&& (sfs.f_type == 0x1373 /* devfs */
		3014	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3015	|| sfs.f_type == 0x3153464a /* jfs */
		3016	|| sfs.f_type == 0x52654973 /* reiser3 */
		3017	|| sfs.f_type == 0x01021994 /* tempfs */
		3018	|| sfs.f_type == 0x58465342 /* xfs */))
		3019	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
		3020	else
		3021	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2673	{	3022	}
		3023	else
		3024	{
		3025	/* can't use inotify, continue to stat */
2674	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3026	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2675	ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2676		3027
2677	/* monitor some parent directory for speedup hints */	3028	/* if path is not there, monitor some parent directory for speedup hints */
2678	/* note that exceeding the hardcoded path limit is not a correctness issue, */	3029	/* note that exceeding the hardcoded path limit is not a correctness issue, */
2679	/* but an efficiency issue only */	3030	/* but an efficiency issue only */
2680	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	3031	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2681	{	3032	{
2682	char path [4096];	3033	char path [4096];
…		…
2698	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3049	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2699	}	3050	}
2700	}	3051	}
2701		3052
2702	if (w->wd >= 0)	3053	if (w->wd >= 0)
2703	{
2704	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3054	wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2705		3055
2706	/* now local changes will be tracked by inotify, but remote changes won't */	3056	/* now re-arm timer, if required */
2707	/* unless the filesystem it known to be local, we therefore still poll */	3057	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2708	/* also do poll on <2.6.25, but with normal frequency */
2709	struct statfs sfs;
2710
2711	if (fs_2625 && !statfs (w->path, &sfs))
2712	if (sfs.f_type == 0x1373 /* devfs */
2713	|| sfs.f_type == 0xEF53 /* ext2/3 */
2714	|| sfs.f_type == 0x3153464a /* jfs */
2715	|| sfs.f_type == 0x52654973 /* reiser3 */
2716	|| sfs.f_type == 0x01021994 /* tempfs */
2717	|| sfs.f_type == 0x58465342 /* xfs */)
2718	return;
2719
2720	w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2721	ev_timer_again (EV_A_ &w->timer);	3058	ev_timer_again (EV_A_ &w->timer);
2722	}	3059	if (ev_is_active (&w->timer)) ev_unref (EV_A);
2723	}	3060	}
2724		3061
2725	static void noinline	3062	static void noinline
2726	infy_del (EV_P_ ev_stat *w)	3063	infy_del (EV_P_ ev_stat *w)
2727	{	3064	{
…		…
2730		3067
2731	if (wd < 0)	3068	if (wd < 0)
2732	return;	3069	return;
2733		3070
2734	w->wd = -2;	3071	w->wd = -2;
2735	slot = wd & (EV_INOTIFY_HASHSIZE - 1);	3072	slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2736	wlist_del (&fs_hash [slot].head, (WL)w);	3073	wlist_del (&fs_hash [slot].head, (WL)w);
2737		3074
2738	/* remove this watcher, if others are watching it, they will rearm */	3075	/* remove this watcher, if others are watching it, they will rearm */
2739	inotify_rm_watch (fs_fd, wd);	3076	inotify_rm_watch (fs_fd, wd);
2740	}	3077	}
…		…
2742	static void noinline	3079	static void noinline
2743	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	3080	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2744	{	3081	{
2745	if (slot < 0)	3082	if (slot < 0)
2746	/* overflow, need to check for all hash slots */	3083	/* overflow, need to check for all hash slots */
2747	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3084	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2748	infy_wd (EV_A_ slot, wd, ev);	3085	infy_wd (EV_A_ slot, wd, ev);
2749	else	3086	else
2750	{	3087	{
2751	WL w_;	3088	WL w_;
2752		3089
2753	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )	3090	for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2754	{	3091	{
2755	ev_stat *w = (ev_stat *)w_;	3092	ev_stat *w = (ev_stat *)w_;
2756	w_ = w_->next; /* lets us remove this watcher and all before it */	3093	w_ = w_->next; /* lets us remove this watcher and all before it */
2757		3094
2758	if (w->wd == wd || wd == -1)	3095	if (w->wd == wd || wd == -1)
2759	{	3096	{
2760	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))	3097	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2761	{	3098	{
2762	wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);	3099	wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2763	w->wd = -1;	3100	w->wd = -1;
2764	infy_add (EV_A_ w); /* re-add, no matter what */	3101	infy_add (EV_A_ w); /* re-add, no matter what */
2765	}	3102	}
2766		3103
2767	stat_timer_cb (EV_A_ &w->timer, 0);	3104	stat_timer_cb (EV_A_ &w->timer, 0);
…		…
2772		3109
2773	static void	3110	static void
2774	infy_cb (EV_P_ ev_io *w, int revents)	3111	infy_cb (EV_P_ ev_io *w, int revents)
2775	{	3112	{
2776	char buf [EV_INOTIFY_BUFSIZE];	3113	char buf [EV_INOTIFY_BUFSIZE];
2777	struct inotify_event *ev = (struct inotify_event *)buf;
2778	int ofs;	3114	int ofs;
2779	int len = read (fs_fd, buf, sizeof (buf));	3115	int len = read (fs_fd, buf, sizeof (buf));
2780		3116
2781	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)	3117	for (ofs = 0; ofs < len; )
		3118	{
		3119	struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2782	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3120	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		3121	ofs += sizeof (struct inotify_event) + ev->len;
		3122	}
2783	}	3123	}
2784		3124
2785	inline_size void	3125	inline_size void
2786	check_2625 (EV_P)	3126	ev_check_2625 (EV_P)
2787	{	3127	{
2788	/* kernels < 2.6.25 are borked	3128	/* kernels < 2.6.25 are borked
2789	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3129	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2790	*/	3130	*/
2791	struct utsname buf;	3131	if (ev_linux_version () < 0x020619)
2792	int major, minor, micro;
2793
2794	if (uname (&buf))
2795	return;	3132	return;
2796		3133
2797	if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2798	return;
2799
2800	if (major < 2
2801	|| (major == 2 && minor < 6)
2802	|| (major == 2 && minor == 6 && micro < 25))
2803	return;
2804
2805	fs_2625 = 1;	3134	fs_2625 = 1;
		3135	}
		3136
		3137	inline_size int
		3138	infy_newfd (void)
		3139	{
		3140	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
		3141	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
		3142	if (fd >= 0)
		3143	return fd;
		3144	#endif
		3145	return inotify_init ();
2806	}	3146	}
2807		3147
2808	inline_size void	3148	inline_size void
2809	infy_init (EV_P)	3149	infy_init (EV_P)
2810	{	3150	{
2811	if (fs_fd != -2)	3151	if (fs_fd != -2)
2812	return;	3152	return;
2813		3153
2814	fs_fd = -1;	3154	fs_fd = -1;
2815		3155
2816	check_2625 (EV_A);	3156	ev_check_2625 (EV_A);
2817		3157
2818	fs_fd = inotify_init ();	3158	fs_fd = infy_newfd ();
2819		3159
2820	if (fs_fd >= 0)	3160	if (fs_fd >= 0)
2821	{	3161	{
		3162	fd_intern (fs_fd);
2822	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);	3163	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2823	ev_set_priority (&fs_w, EV_MAXPRI);	3164	ev_set_priority (&fs_w, EV_MAXPRI);
2824	ev_io_start (EV_A_ &fs_w);	3165	ev_io_start (EV_A_ &fs_w);
		3166	ev_unref (EV_A);
2825	}	3167	}
2826	}	3168	}
2827		3169
2828	inline_size void	3170	inline_size void
2829	infy_fork (EV_P)	3171	infy_fork (EV_P)
…		…
2831	int slot;	3173	int slot;
2832		3174
2833	if (fs_fd < 0)	3175	if (fs_fd < 0)
2834	return;	3176	return;
2835		3177
		3178	ev_ref (EV_A);
		3179	ev_io_stop (EV_A_ &fs_w);
2836	close (fs_fd);	3180	close (fs_fd);
2837	fs_fd = inotify_init ();	3181	fs_fd = infy_newfd ();
2838		3182
		3183	if (fs_fd >= 0)
		3184	{
		3185	fd_intern (fs_fd);
		3186	ev_io_set (&fs_w, fs_fd, EV_READ);
		3187	ev_io_start (EV_A_ &fs_w);
		3188	ev_unref (EV_A);
		3189	}
		3190
2839	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)	3191	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2840	{	3192	{
2841	WL w_ = fs_hash [slot].head;	3193	WL w_ = fs_hash [slot].head;
2842	fs_hash [slot].head = 0;	3194	fs_hash [slot].head = 0;
2843		3195
2844	while (w_)	3196	while (w_)
…		…
2849	w->wd = -1;	3201	w->wd = -1;
2850		3202
2851	if (fs_fd >= 0)	3203	if (fs_fd >= 0)
2852	infy_add (EV_A_ w); /* re-add, no matter what */	3204	infy_add (EV_A_ w); /* re-add, no matter what */
2853	else	3205	else
		3206	{
		3207	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
		3208	if (ev_is_active (&w->timer)) ev_ref (EV_A);
2854	ev_timer_again (EV_A_ &w->timer);	3209	ev_timer_again (EV_A_ &w->timer);
		3210	if (ev_is_active (&w->timer)) ev_unref (EV_A);
		3211	}
2855	}	3212	}
2856	}	3213	}
2857	}	3214	}
2858		3215
2859	#endif	3216	#endif
…		…
2876	static void noinline	3233	static void noinline
2877	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	3234	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2878	{	3235	{
2879	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	3236	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2880		3237
2881	/* we copy this here each the time so that */	3238	ev_statdata prev = w->attr;
2882	/* prev has the old value when the callback gets invoked */
2883	w->prev = w->attr;
2884	ev_stat_stat (EV_A_ w);	3239	ev_stat_stat (EV_A_ w);
2885		3240
2886	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */	3241	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2887	if (	3242	if (
2888	w->prev.st_dev != w->attr.st_dev	3243	prev.st_dev != w->attr.st_dev
2889	|| w->prev.st_ino != w->attr.st_ino	3244	|| prev.st_ino != w->attr.st_ino
2890	|| w->prev.st_mode != w->attr.st_mode	3245	|| prev.st_mode != w->attr.st_mode
2891	|| w->prev.st_nlink != w->attr.st_nlink	3246	|| prev.st_nlink != w->attr.st_nlink
2892	|| w->prev.st_uid != w->attr.st_uid	3247	|| prev.st_uid != w->attr.st_uid
2893	|| w->prev.st_gid != w->attr.st_gid	3248	|| prev.st_gid != w->attr.st_gid
2894	|| w->prev.st_rdev != w->attr.st_rdev	3249	|| prev.st_rdev != w->attr.st_rdev
2895	|| w->prev.st_size != w->attr.st_size	3250	|| prev.st_size != w->attr.st_size
2896	|| w->prev.st_atime != w->attr.st_atime	3251	|| prev.st_atime != w->attr.st_atime
2897	|| w->prev.st_mtime != w->attr.st_mtime	3252	|| prev.st_mtime != w->attr.st_mtime
2898	|| w->prev.st_ctime != w->attr.st_ctime	3253	|| prev.st_ctime != w->attr.st_ctime
2899	) {	3254	) {
		3255	/* we only update w->prev on actual differences */
		3256	/* in case we test more often than invoke the callback, */
		3257	/* to ensure that prev is always different to attr */
		3258	w->prev = prev;
		3259
2900	#if EV_USE_INOTIFY	3260	#if EV_USE_INOTIFY
2901	if (fs_fd >= 0)	3261	if (fs_fd >= 0)
2902	{	3262	{
2903	infy_del (EV_A_ w);	3263	infy_del (EV_A_ w);
2904	infy_add (EV_A_ w);	3264	infy_add (EV_A_ w);
…		…
2929		3289
2930	if (fs_fd >= 0)	3290	if (fs_fd >= 0)
2931	infy_add (EV_A_ w);	3291	infy_add (EV_A_ w);
2932	else	3292	else
2933	#endif	3293	#endif
		3294	{
2934	ev_timer_again (EV_A_ &w->timer);	3295	ev_timer_again (EV_A_ &w->timer);
		3296	ev_unref (EV_A);
		3297	}
2935		3298
2936	ev_start (EV_A_ (W)w, 1);	3299	ev_start (EV_A_ (W)w, 1);
2937		3300
2938	EV_FREQUENT_CHECK;	3301	EV_FREQUENT_CHECK;
2939	}	3302	}
…		…
2948	EV_FREQUENT_CHECK;	3311	EV_FREQUENT_CHECK;
2949		3312
2950	#if EV_USE_INOTIFY	3313	#if EV_USE_INOTIFY
2951	infy_del (EV_A_ w);	3314	infy_del (EV_A_ w);
2952	#endif	3315	#endif
		3316
		3317	if (ev_is_active (&w->timer))
		3318	{
		3319	ev_ref (EV_A);
2953	ev_timer_stop (EV_A_ &w->timer);	3320	ev_timer_stop (EV_A_ &w->timer);
		3321	}
2954		3322
2955	ev_stop (EV_A_ (W)w);	3323	ev_stop (EV_A_ (W)w);
2956		3324
2957	EV_FREQUENT_CHECK;	3325	EV_FREQUENT_CHECK;
2958	}	3326	}
…		…
3003		3371
3004	EV_FREQUENT_CHECK;	3372	EV_FREQUENT_CHECK;
3005	}	3373	}
3006	#endif	3374	#endif
3007		3375
		3376	#if EV_PREPARE_ENABLE
3008	void	3377	void
3009	ev_prepare_start (EV_P_ ev_prepare *w)	3378	ev_prepare_start (EV_P_ ev_prepare *w)
3010	{	3379	{
3011	if (expect_false (ev_is_active (w)))	3380	if (expect_false (ev_is_active (w)))
3012	return;	3381	return;
…		…
3038		3407
3039	ev_stop (EV_A_ (W)w);	3408	ev_stop (EV_A_ (W)w);
3040		3409
3041	EV_FREQUENT_CHECK;	3410	EV_FREQUENT_CHECK;
3042	}	3411	}
		3412	#endif
3043		3413
		3414	#if EV_CHECK_ENABLE
3044	void	3415	void
3045	ev_check_start (EV_P_ ev_check *w)	3416	ev_check_start (EV_P_ ev_check *w)
3046	{	3417	{
3047	if (expect_false (ev_is_active (w)))	3418	if (expect_false (ev_is_active (w)))
3048	return;	3419	return;
…		…
3074		3445
3075	ev_stop (EV_A_ (W)w);	3446	ev_stop (EV_A_ (W)w);
3076		3447
3077	EV_FREQUENT_CHECK;	3448	EV_FREQUENT_CHECK;
3078	}	3449	}
		3450	#endif
3079		3451
3080	#if EV_EMBED_ENABLE	3452	#if EV_EMBED_ENABLE
3081	void noinline	3453	void noinline
3082	ev_embed_sweep (EV_P_ ev_embed *w)	3454	ev_embed_sweep (EV_P_ ev_embed *w)
3083	{	3455	{
3084	ev_loop (w->other, EVLOOP_NONBLOCK);	3456	ev_run (w->other, EVRUN_NOWAIT);
3085	}	3457	}
3086		3458
3087	static void	3459	static void
3088	embed_io_cb (EV_P_ ev_io *io, int revents)	3460	embed_io_cb (EV_P_ ev_io *io, int revents)
3089	{	3461	{
3090	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3462	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3091		3463
3092	if (ev_cb (w))	3464	if (ev_cb (w))
3093	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3465	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3094	else	3466	else
3095	ev_loop (w->other, EVLOOP_NONBLOCK);	3467	ev_run (w->other, EVRUN_NOWAIT);
3096	}	3468	}
3097		3469
3098	static void	3470	static void
3099	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3471	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3100	{	3472	{
3101	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	3473	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3102		3474
3103	{	3475	{
3104	struct ev_loop *loop = w->other;	3476	EV_P = w->other;
3105		3477
3106	while (fdchangecnt)	3478	while (fdchangecnt)
3107	{	3479	{
3108	fd_reify (EV_A);	3480	fd_reify (EV_A);
3109	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3481	ev_run (EV_A_ EVRUN_NOWAIT);
3110	}	3482	}
3111	}	3483	}
3112	}	3484	}
3113		3485
3114	static void	3486	static void
…		…
3117	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	3489	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3118		3490
3119	ev_embed_stop (EV_A_ w);	3491	ev_embed_stop (EV_A_ w);
3120		3492
3121	{	3493	{
3122	struct ev_loop *loop = w->other;	3494	EV_P = w->other;
3123		3495
3124	ev_loop_fork (EV_A);	3496	ev_loop_fork (EV_A);
3125	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3497	ev_run (EV_A_ EVRUN_NOWAIT);
3126	}	3498	}
3127		3499
3128	ev_embed_start (EV_A_ w);	3500	ev_embed_start (EV_A_ w);
3129	}	3501	}
3130		3502
…		…
3141	{	3513	{
3142	if (expect_false (ev_is_active (w)))	3514	if (expect_false (ev_is_active (w)))
3143	return;	3515	return;
3144		3516
3145	{	3517	{
3146	struct ev_loop *loop = w->other;	3518	EV_P = w->other;
3147	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	3519	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3148	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);	3520	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3149	}	3521	}
3150		3522
3151	EV_FREQUENT_CHECK;	3523	EV_FREQUENT_CHECK;
…		…
3178		3550
3179	ev_io_stop (EV_A_ &w->io);	3551	ev_io_stop (EV_A_ &w->io);
3180	ev_prepare_stop (EV_A_ &w->prepare);	3552	ev_prepare_stop (EV_A_ &w->prepare);
3181	ev_fork_stop (EV_A_ &w->fork);	3553	ev_fork_stop (EV_A_ &w->fork);
3182		3554
		3555	ev_stop (EV_A_ (W)w);
		3556
3183	EV_FREQUENT_CHECK;	3557	EV_FREQUENT_CHECK;
3184	}	3558	}
3185	#endif	3559	#endif
3186		3560
3187	#if EV_FORK_ENABLE	3561	#if EV_FORK_ENABLE
…		…
3220		3594
3221	EV_FREQUENT_CHECK;	3595	EV_FREQUENT_CHECK;
3222	}	3596	}
3223	#endif	3597	#endif
3224		3598
3225	#if EV_ASYNC_ENABLE	3599	#if EV_CLEANUP_ENABLE
3226	void	3600	void
3227	ev_async_start (EV_P_ ev_async *w)	3601	ev_cleanup_start (EV_P_ ev_cleanup *w)
3228	{	3602	{
3229	if (expect_false (ev_is_active (w)))	3603	if (expect_false (ev_is_active (w)))
3230	return;	3604	return;
		3605
		3606	EV_FREQUENT_CHECK;
		3607
		3608	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3609	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3610	cleanups [cleanupcnt - 1] = w;
		3611
		3612	/* cleanup watchers should never keep a refcount on the loop */
		3613	ev_unref (EV_A);
		3614	EV_FREQUENT_CHECK;
		3615	}
		3616
		3617	void
		3618	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3619	{
		3620	clear_pending (EV_A_ (W)w);
		3621	if (expect_false (!ev_is_active (w)))
		3622	return;
		3623
		3624	EV_FREQUENT_CHECK;
		3625	ev_ref (EV_A);
		3626
		3627	{
		3628	int active = ev_active (w);
		3629
		3630	cleanups [active - 1] = cleanups [--cleanupcnt];
		3631	ev_active (cleanups [active - 1]) = active;
		3632	}
		3633
		3634	ev_stop (EV_A_ (W)w);
		3635
		3636	EV_FREQUENT_CHECK;
		3637	}
		3638	#endif
		3639
		3640	#if EV_ASYNC_ENABLE
		3641	void
		3642	ev_async_start (EV_P_ ev_async *w)
		3643	{
		3644	if (expect_false (ev_is_active (w)))
		3645	return;
		3646
		3647	w->sent = 0;
3231		3648
3232	evpipe_init (EV_A);	3649	evpipe_init (EV_A);
3233		3650
3234	EV_FREQUENT_CHECK;	3651	EV_FREQUENT_CHECK;
3235		3652
…		…
3263		3680
3264	void	3681	void
3265	ev_async_send (EV_P_ ev_async *w)	3682	ev_async_send (EV_P_ ev_async *w)
3266	{	3683	{
3267	w->sent = 1;	3684	w->sent = 1;
3268	evpipe_write (EV_A_ &gotasync);	3685	evpipe_write (EV_A_ &async_pending);
3269	}	3686	}
3270	#endif	3687	#endif
3271		3688
3272	/*****************************************************************************/	3689	/*****************************************************************************/
3273		3690
…		…
3313	{	3730	{
3314	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	3731	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3315		3732
3316	if (expect_false (!once))	3733	if (expect_false (!once))
3317	{	3734	{
3318	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	3735	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3319	return;	3736	return;
3320	}	3737	}
3321		3738
3322	once->cb = cb;	3739	once->cb = cb;
3323	once->arg = arg;	3740	once->arg = arg;
…		…
3410	if (types & EV_ASYNC)	3827	if (types & EV_ASYNC)
3411	for (i = asynccnt; i--; )	3828	for (i = asynccnt; i--; )
3412	cb (EV_A_ EV_ASYNC, asyncs [i]);	3829	cb (EV_A_ EV_ASYNC, asyncs [i]);
3413	#endif	3830	#endif
3414		3831
		3832	#if EV_PREPARE_ENABLE
3415	if (types & EV_PREPARE)	3833	if (types & EV_PREPARE)
3416	for (i = preparecnt; i--; )	3834	for (i = preparecnt; i--; )
3417	#if EV_EMBED_ENABLE	3835	# if EV_EMBED_ENABLE
3418	if (ev_cb (prepares [i]) != embed_prepare_cb)	3836	if (ev_cb (prepares [i]) != embed_prepare_cb)
3419	#endif	3837	# endif
3420	cb (EV_A_ EV_PREPARE, prepares [i]);	3838	cb (EV_A_ EV_PREPARE, prepares [i]);
		3839	#endif
3421		3840
		3841	#if EV_CHECK_ENABLE
3422	if (types & EV_CHECK)	3842	if (types & EV_CHECK)
3423	for (i = checkcnt; i--; )	3843	for (i = checkcnt; i--; )
3424	cb (EV_A_ EV_CHECK, checks [i]);	3844	cb (EV_A_ EV_CHECK, checks [i]);
		3845	#endif
3425		3846
		3847	#if EV_SIGNAL_ENABLE
3426	if (types & EV_SIGNAL)	3848	if (types & EV_SIGNAL)
3427	for (i = 0; i < signalmax; ++i)	3849	for (i = 0; i < EV_NSIG - 1; ++i)
3428	for (wl = signals [i].head; wl; )	3850	for (wl = signals [i].head; wl; )
3429	{	3851	{
3430	wn = wl->next;	3852	wn = wl->next;
3431	cb (EV_A_ EV_SIGNAL, wl);	3853	cb (EV_A_ EV_SIGNAL, wl);
3432	wl = wn;	3854	wl = wn;
3433	}	3855	}
		3856	#endif
3434		3857
		3858	#if EV_CHILD_ENABLE
3435	if (types & EV_CHILD)	3859	if (types & EV_CHILD)
3436	for (i = EV_PID_HASHSIZE; i--; )	3860	for (i = (EV_PID_HASHSIZE); i--; )
3437	for (wl = childs [i]; wl; )	3861	for (wl = childs [i]; wl; )
3438	{	3862	{
3439	wn = wl->next;	3863	wn = wl->next;
3440	cb (EV_A_ EV_CHILD, wl);	3864	cb (EV_A_ EV_CHILD, wl);
3441	wl = wn;	3865	wl = wn;
3442	}	3866	}
		3867	#endif
3443	/* EV_STAT 0x00001000 /* stat data changed */	3868	/* EV_STAT 0x00001000 /* stat data changed */
3444	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */	3869	/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3445	}	3870	}
3446	#endif	3871	#endif
3447		3872
3448	#if EV_MULTIPLICITY	3873	#if EV_MULTIPLICITY
3449	#include "ev_wrap.h"	3874	#include "ev_wrap.h"
3450	#endif	3875	#endif
3451		3876
3452	#ifdef __cplusplus	3877	EV_CPP(})
3453	}
3454	#endif
3455		3878

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